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wordRegexp(words, end, pre) {\n if (typeof pre === \"undefined\") pre = \"\";\n if (typeof end === \"undefined\") { end = \"\\\\b\"; }\n return new RegExp(\"^\" + pre + \"((\" + words.join(\")|(\") + \"))\" + end);\n}\n\nvar octChar = \"\\\\\\\\[0-7]{1,3}\";\nvar hexChar = \"\\\\\\\\x[A-Fa-f0-9]{1,2}\";\nvar sChar = \"\\\\\\\\[abefnrtv0%?'\\\"\\\\\\\\]\";\nvar uChar = \"([^\\\\u0027\\\\u005C\\\\uD800-\\\\uDFFF]|[\\\\uD800-\\\\uDFFF][\\\\uDC00-\\\\uDFFF])\";\n\nvar asciiOperatorsList = [\n \"[<>]:\", \"[<>=]=\", \"<<=?\", \">>>?=?\", \"=>\", \"--?>\", \"<--[->]?\", \"\\\\/\\\\/\",\n \"\\\\.{2,3}\", \"[\\\\.\\\\\\\\%*+\\\\-<>!\\\\/^|&]=?\", \"\\\\?\", \"\\\\$\", \"~\", \":\"\n];\nvar operators = wordRegexp([\n \"[<>]:\", \"[<>=]=\", \"[!=]==\", \"<<=?\", \">>>?=?\", \"=>?\", \"--?>\", \"<--[->]?\", \"\\\\/\\\\/\",\n \"[\\\\\\\\%*+\\\\-<>!\\\\/^|&\\\\u00F7\\\\u22BB]=?\", \"\\\\?\", \"\\\\$\", \"~\", \":\",\n \"\\\\u00D7\", \"\\\\u2208\", \"\\\\u2209\", \"\\\\u220B\", \"\\\\u220C\", 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\"function\", \"where\", \"macro\", \"module\", \"baremodule\", \"struct\", \"type\",\n \"mutable\", \"immutable\", \"quote\", \"typealias\", \"abstract\", \"primitive\",\n \"bitstype\"];\n\nvar builtinsList = [\"true\", \"false\", \"nothing\", \"NaN\", \"Inf\"];\n\nvar openers = wordRegexp(openersList);\nvar closers = wordRegexp(closersList);\nvar keywords = wordRegexp(keywordsList);\nvar builtins = wordRegexp(builtinsList);\n\nvar macro = /^@[_A-Za-z\\u00A1-\\uFFFF][\\w\\u00A1-\\uFFFF]*!*/;\nvar symbol = /^:[_A-Za-z\\u00A1-\\uFFFF][\\w\\u00A1-\\uFFFF]*!*/;\nvar stringPrefixes = /^(`|([_A-Za-z\\u00A1-\\uFFFF]*\"(\"\")?))/;\n\nvar macroOperators = wordRegexp(asciiOperatorsList, \"\", \"@\");\nvar symbolOperators = wordRegexp(asciiOperatorsList, \"\", \":\");\n\nfunction inArray(state) {\n return (state.nestedArrays > 0);\n}\n\nfunction inGenerator(state) {\n return (state.nestedGenerators > 0);\n}\n\nfunction currentScope(state, n) {\n if (typeof(n) === \"undefined\") { n = 0; }\n if 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return \"builtin\";\n }\n\n // Handle parametric types\n //if (stream.match(/^{[^}]*}(?=\\()/)) {\n // return \"builtin\";\n //}\n\n // Handle operators and Delimiters\n if (stream.match(operators)) {\n return \"operator\";\n }\n\n // Handle Number Literals\n if (stream.match(/^\\.?\\d/, false)) {\n var imMatcher = RegExp(/^im\\b/);\n var numberLiteral = false;\n if (stream.match(/^0x\\.[0-9a-f_]+p[\\+\\-]?[_\\d]+/i)) { numberLiteral = true; }\n // Integers\n if (stream.match(/^0x[0-9a-f_]+/i)) { numberLiteral = true; } // Hex\n if (stream.match(/^0b[01_]+/i)) { numberLiteral = true; } // Binary\n if (stream.match(/^0o[0-7_]+/i)) { numberLiteral = true; } // Octal\n // Floats\n if (stream.match(/^(?:(?:\\d[_\\d]*)?\\.(?!\\.)(?:\\d[_\\d]*)?|\\d[_\\d]*\\.(?!\\.)(?:\\d[_\\d]*))?([Eef][\\+\\-]?[_\\d]+)?/i)) { numberLiteral = true; }\n if (stream.match(/^\\d[_\\d]*(e[\\+\\-]?\\d+)?/i)) { numberLiteral = true; } // Decimal\n if (numberLiteral) {\n // Integer literals may be \"long\"\n stream.match(imMatcher);\n state.leavingExpr = true;\n return \"number\";\n }\n }\n\n // Handle Chars\n if (stream.match(\"'\")) {\n state.tokenize = tokenChar;\n return state.tokenize(stream, state);\n }\n\n // Handle Strings\n if (stream.match(stringPrefixes)) {\n state.tokenize = tokenStringFactory(stream.current());\n return state.tokenize(stream, state);\n }\n\n if (stream.match(macro) || stream.match(macroOperators)) {\n return \"meta\";\n }\n\n if (stream.match(delimiters)) {\n return null;\n }\n\n if (stream.match(keywords)) {\n return \"keyword\";\n }\n\n if (stream.match(builtins)) {\n return \"builtin\";\n }\n\n var isDefinition = state.isDefinition || state.lastToken == \"function\" ||\n state.lastToken == \"macro\" || state.lastToken == \"type\" ||\n state.lastToken == \"struct\" || state.lastToken == \"immutable\";\n\n if (stream.match(identifiers)) {\n if (isDefinition) {\n if (stream.peek() === '.') {\n state.isDefinition = true;\n return \"variable\";\n }\n 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(stream.match(chars)) {\n isChar = true;\n } else if (match = stream.match(/\\\\u([a-f0-9]{1,4})(?=')/i)) {\n var value = parseInt(match[1], 16);\n if (value <= 55295 || value >= 57344) { // (U+0,U+D7FF), (U+E000,U+FFFF)\n isChar = true;\n stream.next();\n }\n } else if (match = stream.match(/\\\\U([A-Fa-f0-9]{5,8})(?=')/)) {\n var value = parseInt(match[1], 16);\n if (value <= 1114111) { // U+10FFFF\n isChar = true;\n stream.next();\n }\n }\n if (isChar) {\n state.leavingExpr = true;\n state.tokenize = tokenBase;\n return \"string\";\n }\n if (!stream.match(/^[^']+(?=')/)) { stream.skipToEnd(); }\n if (stream.match(\"'\")) { state.tokenize = tokenBase; }\n return \"error\";\n}\n\nfunction tokenStringFactory(delimiter) {\n if (delimiter.substr(-3) === '\"\"\"') {\n delimiter = '\"\"\"';\n } else if (delimiter.substr(-1) === '\"') {\n delimiter = '\"';\n }\n function tokenString(stream, state) {\n if (stream.eat('\\\\')) {\n stream.next();\n } else if (stream.match(delimiter)) {\n 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words(str) {\n var obj = {}, words = str.split(\" \");\n for (var i = 0; i < words.length; ++i)\n obj[words[i]] = true;\n return obj;\n}\n\nconst parserConfig = {\n name: \"ttcn-cfg\",\n keywords: words(\"Yes No LogFile FileMask ConsoleMask AppendFile\" +\n \" TimeStampFormat LogEventTypes SourceInfoFormat\" +\n \" LogEntityName LogSourceInfo DiskFullAction\" +\n \" LogFileNumber LogFileSize MatchingHints Detailed\" +\n \" Compact SubCategories Stack Single None Seconds\" +\n \" DateTime Time Stop Error Retry Delete TCPPort KillTimer\" +\n \" NumHCs UnixSocketsEnabled LocalAddress\"),\n fileNCtrlMaskOptions: words(\"TTCN_EXECUTOR TTCN_ERROR TTCN_WARNING\" +\n \" TTCN_PORTEVENT TTCN_TIMEROP TTCN_VERDICTOP\" +\n \" TTCN_DEFAULTOP TTCN_TESTCASE TTCN_ACTION\" +\n \" TTCN_USER TTCN_FUNCTION TTCN_STATISTICS\" +\n \" TTCN_PARALLEL TTCN_MATCHING TTCN_DEBUG\" +\n \" EXECUTOR ERROR WARNING PORTEVENT TIMEROP\" +\n \" VERDICTOP DEFAULTOP TESTCASE ACTION USER\" +\n \" FUNCTION STATISTICS PARALLEL MATCHING DEBUG\" +\n \" LOG_ALL LOG_NOTHING ACTION_UNQUALIFIED\" +\n \" DEBUG_ENCDEC DEBUG_TESTPORT\" +\n \" DEBUG_UNQUALIFIED DEFAULTOP_ACTIVATE\" +\n \" DEFAULTOP_DEACTIVATE DEFAULTOP_EXIT\" +\n \" DEFAULTOP_UNQUALIFIED ERROR_UNQUALIFIED\" +\n \" EXECUTOR_COMPONENT EXECUTOR_CONFIGDATA\" +\n \" EXECUTOR_EXTCOMMAND EXECUTOR_LOGOPTIONS\" +\n \" EXECUTOR_RUNTIME EXECUTOR_UNQUALIFIED\" +\n \" FUNCTION_RND FUNCTION_UNQUALIFIED\" +\n \" MATCHING_DONE MATCHING_MCSUCCESS\" +\n \" MATCHING_MCUNSUCC MATCHING_MMSUCCESS\" +\n \" MATCHING_MMUNSUCC MATCHING_PCSUCCESS\" +\n \" MATCHING_PCUNSUCC MATCHING_PMSUCCESS\" +\n \" MATCHING_PMUNSUCC MATCHING_PROBLEM\" +\n \" MATCHING_TIMEOUT MATCHING_UNQUALIFIED\" +\n \" PARALLEL_PORTCONN PARALLEL_PORTMAP\" +\n \" PARALLEL_PTC PARALLEL_UNQUALIFIED\" +\n \" PORTEVENT_DUALRECV PORTEVENT_DUALSEND\" +\n \" PORTEVENT_MCRECV PORTEVENT_MCSEND\" +\n \" PORTEVENT_MMRECV PORTEVENT_MMSEND\" +\n \" PORTEVENT_MQUEUE PORTEVENT_PCIN\" +\n \" PORTEVENT_PCOUT PORTEVENT_PMIN\" 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state.context.prev;\n}\n\n//Interface\nexport const ttcnCfg = {\n name: \"ttcn\",\n startState: function() {\n return {\n tokenize: null,\n context: new Context(0, 0, \"top\", false),\n indented: 0,\n startOfLine: true\n };\n },\n\n token: function(stream, state) {\n var ctx = state.context;\n if (stream.sol()) {\n if (ctx.align == null) ctx.align = false;\n state.indented = stream.indentation();\n state.startOfLine = true;\n }\n if (stream.eatSpace()) return null;\n curPunc = null;\n var style = (state.tokenize || tokenBase)(stream, state);\n if (style == \"comment\") return style;\n if (ctx.align == null) ctx.align = true;\n\n if ((curPunc == \";\" || curPunc == \":\" || curPunc == \",\")\n && ctx.type == \"statement\"){\n popContext(state);\n }\n else if (curPunc == \"{\") pushContext(state, stream.column(), \"}\");\n else if (curPunc == \"[\") pushContext(state, stream.column(), \"]\");\n else if (curPunc == \"(\") pushContext(state, stream.column(), \")\");\n else if (curPunc == 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HAI|Mogućnost|Mogucnost|Jellemző|Hwæt|Hwaet|Funzionalità|Funktionalitéit|Funktionalität|Funkcja|Funkcionalnost|Funkcionalitāte|Funkcia|Fungsi|Functionaliteit|Funcționalitate|Funcţionalitate|Functionalitate|Funcionalitat|Funcionalidade|Fonctionnalité|Fitur|Fīča|Feature|Eiginleiki|Egenskap|Egenskab|Característica|Caracteristica|Business Need|Aspekt|Arwedd|Ahoy matey!|Ability):/)?(e.allowScenario=!0,e.allowBackground=!0,e.allowPlaceholders=!1,e.allowSteps=!1,e.allowMultilineArgument=!1,e.inKeywordLine=!0,"keyword"):!e.inKeywordLine&&e.allowBackground&&a.match(/(背景|배경|แนวคิด|ಹಿನ್ನೆಲೆ|నేపథ్యం|ਪਿਛੋਕੜ|पृष्ठभूमि|زمینه|الخلفية|רקע|Тарих|Предыстория|Предистория|Позадина|Передумова|Основа|Контекст|Кереш|Υπόβαθρο|Założenia|Yo\-ho\-ho|Tausta|Taust|Situācija|Rerefons|Pozadina|Pozadie|Pozadí|Osnova|Latar Belakang|Kontext|Konteksts|Kontekstas|Kontekst|Háttér|Hannergrond|Grundlage|Geçmiş|Fundo|Fono|First off|Dis is what went down|Dasar|Contexto|Contexte|Context|Contesto|Cenário de Fundo|Cenario de 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pēc parauga|Scenarijaus šablonas|Reckon it's like|Raamstsenaarium|Plang vum Szenario|Plan du Scénario|Plan du scénario|Osnova scénáře|Osnova Scenára|Náčrt Scenáru|Náčrt Scénáře|Náčrt Scenára|MISHUN SRSLY|Menggariskan Senario|Lýsing Dæma|Lýsing Atburðarásar|Konturo de la scenaro|Koncept|Khung tình huống|Khung kịch bản|Forgatókönyv vázlat|Esquema do Cenário|Esquema do Cenario|Esquema del escenario|Esquema de l'escenari|Esbozo do escenario|Delineação do Cenário|Delineacao do Cenario|All y'all|Abstrakt Scenario|Abstract Scenario):/)?(e.allowPlaceholders=!0,e.allowSteps=!0,e.allowMultilineArgument=!1,e.inKeywordLine=!0,"keyword"):e.allowScenario&&a.match(/(例子|例|サンプル|예|ชุดของเหตุการณ์|ชุดของตัวอย่าง|ಉದಾಹರಣೆಗಳು|ఉదాహరణలు|ਉਦਾਹਰਨਾਂ|उदाहरण|نمونه ها|امثلة|דוגמאות|Үрнәкләр|Сценарији|Примеры|Примери|Приклади|Мисоллар|Мисаллар|Σενάρια|Παραδείγματα|You'll wanna|Voorbeelden|Variantai|Tapaukset|Se þe|Se the|Se ðe|Scenarios|Scenariji|Scenarijai|Przykłady|Primjeri|Primeri|Příklady|Príklady|Piemēri|Példák|Pavyzdžiai|Paraugs|Örnekler|Juhtumid|Exemplos|Exemples|Exemple|Exempel|EXAMPLZ|Examples|Esempi|Enghreifftiau|Ekzemploj|Eksempler|Ejemplos|Dữ liệu|Dead men tell no tales|Dæmi|Contoh|Cenários|Cenarios|Beispiller|Beispiele|Atburðarásir):/)?(e.allowPlaceholders=!1,e.allowSteps=!0,e.allowBackground=!1,e.allowMultilineArgument=!0,"keyword"):!e.inKeywordLine&&e.allowScenario&&a.match(/(場景|场景|劇本|剧本|シナリオ|시나리오|เหตุการณ์|ಕಥಾಸಾರಾಂಶ|సన్నివేశం|ਪਟਕਥਾ|परिदृश्य|سيناريو|سناریو|תרחיש|Сценарій|Сценарио|Сценарий|Пример|Σενάριο|Tình huống|The thing of it is|Tapaus|Szenario|Swa|Stsenaarium|Skenario|Situai|Senaryo|Senario|Scenaro|Scenariusz|Scenariu|Scénario|Scenario|Scenarijus|Scenārijs|Scenarij|Scenarie|Scénář|Scenár|Primer|MISHUN|Kịch bản|Keadaan|Heave to|Forgatókönyv|Escenario|Escenari|Cenário|Cenario|Awww, look mate|Atburðarás):/)?(e.allowPlaceholders=!1,e.allowSteps=!0,e.allowBackground=!1,e.allowMultilineArgument=!1,e.inKeywordLine=!0,"keyword"):!e.inKeywordLine&&e.allowSteps&&a.match(/(那麼|那么|而且|當|当|并且|同時|同时|前提|假设|假設|假定|假如|但是|但し|並且|もし|ならば|ただし|しかし|かつ|하지만|조건|먼저|만일|만약|단|그리고|그러면|และ |เมื่อ |แต่ |ดังนั้น |กำหนดให้ |ಸ್ಥಿತಿಯನ್ನು |ಮತ್ತು |ನೀಡಿದ |ನಂತರ |ಆದರೆ |మరియు |చెప్పబడినది |కాని |ఈ పరిస్థితిలో |అప్పుడు |ਪਰ |ਤਦ |ਜੇਕਰ |ਜਿਵੇਂ ਕਿ |ਜਦੋਂ |ਅਤੇ |यदि |परन्तु |पर |तब |तदा |तथा |जब |चूंकि |किन्तु |कदा |और |अगर |و |هنگامی |متى |لكن |عندما |ثم |بفرض |با فرض |اما |اذاً |آنگاه |כאשר |וגם |בהינתן |אזי |אז |אבל |Якщо |Һәм |Унда |Тоді |Тогда |То |Также |Та |Пусть |Припустимо, що |Припустимо |Онда |Но |Нехай |Нәтиҗәдә |Лекин |Ләкин |Коли |Когда |Когато |Када |Кад |К тому же |І |И |Задато |Задати |Задате |Если |Допустим |Дано |Дадено |Вә |Ва |Бирок |Әмма |Әйтик |Әгәр |Аммо |Али |Але |Агар |А також |А |Τότε |Όταν |Και |Δεδομένου |Αλλά |Þurh |Þegar |Þa þe |Þá |Þa |Zatati |Zakładając |Zadato |Zadate |Zadano |Zadani |Zadan |Za předpokladu |Za predpokladu |Youse know when youse got |Youse know like when |Yna |Yeah nah |Y'know |Y |Wun |Wtedy |When y'all |When |Wenn |WEN |wann |Ve |Và |Und |Un |ugeholl |Too right |Thurh |Thì |Then y'all |Then |Tha the |Tha |Tetapi |Tapi |Tak |Tada |Tad |Stel |Soit |Siis |Și |Şi |Si |Sed |Se |Så |Quando |Quand |Quan |Pryd |Potom |Pokud |Pokiaľ |Però |Pero |Pak |Oraz |Onda |Ond |Oletetaan |Og |Och |O zaman |Niin |Nhưng |När |Når |Mutta |Men |Mas |Maka |Majd |Mając |Mais |Maar |mä |Ma |Lorsque |Lorsqu'|Logo |Let go and haul |Kun |Kuid |Kui |Kiedy |Khi |Ketika |Kemudian |Keď |Když |Kaj |Kai |Kada |Kad |Jeżeli |Jeśli |Ja |It's just unbelievable |Ir |I CAN HAZ |I |Ha |Givun |Givet |Given y'all |Given |Gitt |Gegeven |Gegeben seien |Gegeben sei |Gdy |Gangway! |Fakat |Étant donnés |Etant donnés |Étant données |Etant données |Étant donnée |Etant donnée |Étant donné |Etant donné |Et |És |Entonces |Entón |Então |Entao |En |Eğer ki |Ef |Eeldades |E |Ðurh |Duota |Dun |Donitaĵo |Donat |Donada |Do |Diyelim ki |Diberi |Dengan |Den youse gotta |DEN |De |Dato |Dați fiind |Daţi fiind |Dati fiind |Dati |Date fiind |Date |Data |Dat fiind |Dar |Dann |dann |Dan |Dados |Dado |Dadas |Dada |Ða ðe |Ða |Cuando |Cho |Cando |Când |Cand |Cal |But y'all |But at the end of the day I reckon |BUT |But |Buh |Blimey! |Biết |Bet |Bagi |Aye |awer |Avast! |Atunci |Atesa |Atès |Apabila |Anrhegedig a |Angenommen |And y'all |And |AN |An |an |Amikor |Amennyiben |Ama |Als |Alors |Allora |Ali |Aleshores |Ale |Akkor |Ak |Adott |Ac |Aber |A zároveň |A tiež |A taktiež |A také |A |a |7 |\* )/)?(e.inStep=!0,e.allowPlaceholders=!0,e.allowMultilineArgument=!0,e.inKeywordLine=!0,"keyword"):a.match(/"[^"]*"?/)?"string":e.allowPlaceholders&&a.match(/<[^>]*>?/)?"variable":(a.next(),a.eatWhile(/[^@"<#]/),null)}}}}]); +//# sourceMappingURL=1643.index.js.map \ No newline at end of file diff --git a/pr-preview/pr-707/1643.index.js.map b/pr-preview/pr-707/1643.index.js.map new file mode 100644 index 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const gherkin = {\n name: \"gherkin\",\n startState: function () {\n return {\n lineNumber: 0,\n tableHeaderLine: false,\n allowFeature: true,\n allowBackground: false,\n allowScenario: false,\n allowSteps: false,\n allowPlaceholders: false,\n allowMultilineArgument: false,\n inMultilineString: false,\n inMultilineTable: false,\n inKeywordLine: false\n };\n },\n token: function (stream, state) {\n if (stream.sol()) {\n state.lineNumber++;\n state.inKeywordLine = false;\n if (state.inMultilineTable) {\n state.tableHeaderLine = false;\n if (!stream.match(/\\s*\\|/, false)) {\n state.allowMultilineArgument = false;\n state.inMultilineTable = false;\n }\n }\n }\n\n stream.eatSpace();\n\n if (state.allowMultilineArgument) {\n\n // STRING\n if (state.inMultilineString) {\n if (stream.match('\"\"\"')) {\n state.inMultilineString = false;\n state.allowMultilineArgument = false;\n } else {\n stream.match(/.*/);\n }\n return \"string\";\n }\n\n // TABLE\n if (state.inMultilineTable) {\n if (stream.match(/\\|\\s*/)) {\n return \"bracket\";\n } else {\n stream.match(/[^\\|]*/);\n return state.tableHeaderLine ? \"header\" : \"string\";\n }\n }\n\n // DETECT START\n if (stream.match('\"\"\"')) {\n // String\n state.inMultilineString = true;\n return \"string\";\n } else if (stream.match(\"|\")) {\n // Table\n state.inMultilineTable = true;\n state.tableHeaderLine = true;\n return \"bracket\";\n }\n\n }\n\n // LINE COMMENT\n if (stream.match(/#.*/)) {\n return \"comment\";\n\n // TAG\n } else if (!state.inKeywordLine && stream.match(/@\\S+/)) {\n return \"tag\";\n\n // FEATURE\n } else if (!state.inKeywordLine && state.allowFeature && stream.match(/(機能|功能|フィーチャ|기능|โครงหลัก|ความสามารถ|ความต้องการทางธุรกิจ|ಹೆಚ್ಚಳ|గుణము|ਮੁਹਾਂਦਰਾ|ਨਕਸ਼ ਨੁਹਾਰ|ਖਾਸੀਅਤ|रूप लेख|وِیژگی|خاصية|תכונה|Функціонал|Функция|Функционалност|Функционал|Үзенчәлеклелек|Свойство|Особина|Мөмкинлек|Могућност|Λειτουργία|Δυνατότητα|Właściwość|Vlastnosť|Trajto|Tính năng|Savybė|Pretty much|Požiadavka|Požadavek|Potrzeba biznesowa|Özellik|Osobina|Ominaisuus|Omadus|OH HAI|Mogućnost|Mogucnost|Jellemző|Hwæt|Hwaet|Funzionalità|Funktionalitéit|Funktionalität|Funkcja|Funkcionalnost|Funkcionalitāte|Funkcia|Fungsi|Functionaliteit|Funcționalitate|Funcţionalitate|Functionalitate|Funcionalitat|Funcionalidade|Fonctionnalité|Fitur|Fīča|Feature|Eiginleiki|Egenskap|Egenskab|Característica|Caracteristica|Business Need|Aspekt|Arwedd|Ahoy matey!|Ability):/)) {\n state.allowScenario = true;\n state.allowBackground = true;\n state.allowPlaceholders = false;\n state.allowSteps = false;\n state.allowMultilineArgument = false;\n state.inKeywordLine = true;\n return \"keyword\";\n\n // BACKGROUND\n } else if (!state.inKeywordLine && state.allowBackground && stream.match(/(背景|배경|แนวคิด|ಹಿನ್ನೆಲೆ|నేపథ్యం|ਪਿਛੋਕੜ|पृष्ठभूमि|زمینه|الخلفية|רקע|Тарих|Предыстория|Предистория|Позадина|Передумова|Основа|Контекст|Кереш|Υπόβαθρο|Założenia|Yo\\-ho\\-ho|Tausta|Taust|Situācija|Rerefons|Pozadina|Pozadie|Pozadí|Osnova|Latar Belakang|Kontext|Konteksts|Kontekstas|Kontekst|Háttér|Hannergrond|Grundlage|Geçmiş|Fundo|Fono|First off|Dis is what went down|Dasar|Contexto|Contexte|Context|Contesto|Cenário de Fundo|Cenario de Fundo|Cefndir|Bối cảnh|Bakgrunnur|Bakgrunn|Bakgrund|Baggrund|Background|B4|Antecedents|Antecedentes|Ær|Aer|Achtergrond):/)) {\n state.allowPlaceholders = false;\n state.allowSteps = true;\n state.allowBackground = false;\n state.allowMultilineArgument = false;\n state.inKeywordLine = true;\n return \"keyword\";\n\n // SCENARIO OUTLINE\n } else if (!state.inKeywordLine && state.allowScenario && stream.match(/(場景大綱|场景大纲|劇本大綱|剧本大纲|テンプレ|シナリオテンプレート|シナリオテンプレ|シナリオアウトライン|시나리오 개요|สรุปเหตุการณ์|โครงสร้างของเหตุการณ์|ವಿವರಣೆ|కథనం|ਪਟਕਥਾ ਰੂਪ ਰੇਖਾ|ਪਟਕਥਾ ਢਾਂਚਾ|परिदृश्य रूपरेखा|سيناريو مخطط|الگوی سناریو|תבנית תרחיש|Сценарийның төзелеше|Сценарий структураси|Структура сценарію|Структура сценария|Структура сценарија|Скица|Рамка на сценарий|Концепт|Περιγραφή Σεναρίου|Wharrimean is|Template Situai|Template Senario|Template Keadaan|Tapausaihio|Szenariogrundriss|Szablon scenariusza|Swa hwær swa|Swa hwaer swa|Struktura scenarija|Structură scenariu|Structura scenariu|Skica|Skenario konsep|Shiver me timbers|Senaryo taslağı|Schema dello scenario|Scenariomall|Scenariomal|Scenario Template|Scenario Outline|Scenario Amlinellol|Scenārijs pēc parauga|Scenarijaus šablonas|Reckon it's like|Raamstsenaarium|Plang vum Szenario|Plan du Scénario|Plan du scénario|Osnova scénáře|Osnova Scenára|Náčrt Scenáru|Náčrt Scénáře|Náčrt Scenára|MISHUN SRSLY|Menggariskan Senario|Lýsing Dæma|Lýsing Atburðarásar|Konturo de la scenaro|Koncept|Khung tình huống|Khung kịch bản|Forgatókönyv vázlat|Esquema do Cenário|Esquema do Cenario|Esquema del escenario|Esquema de l'escenari|Esbozo do escenario|Delineação do Cenário|Delineacao do Cenario|All y'all|Abstrakt Scenario|Abstract Scenario):/)) {\n state.allowPlaceholders = true;\n state.allowSteps = true;\n state.allowMultilineArgument = false;\n state.inKeywordLine = true;\n return \"keyword\";\n\n // EXAMPLES\n } else if (state.allowScenario && stream.match(/(例子|例|サンプル|예|ชุดของเหตุการณ์|ชุดของตัวอย่าง|ಉದಾಹರಣೆಗಳು|ఉదాహరణలు|ਉਦਾਹਰਨਾਂ|उदाहरण|نمونه ها|امثلة|דוגמאות|Үрнәкләр|Сценарији|Примеры|Примери|Приклади|Мисоллар|Мисаллар|Σενάρια|Παραδείγματα|You'll wanna|Voorbeelden|Variantai|Tapaukset|Se þe|Se the|Se ðe|Scenarios|Scenariji|Scenarijai|Przykłady|Primjeri|Primeri|Příklady|Príklady|Piemēri|Példák|Pavyzdžiai|Paraugs|Örnekler|Juhtumid|Exemplos|Exemples|Exemple|Exempel|EXAMPLZ|Examples|Esempi|Enghreifftiau|Ekzemploj|Eksempler|Ejemplos|Dữ liệu|Dead men tell no tales|Dæmi|Contoh|Cenários|Cenarios|Beispiller|Beispiele|Atburðarásir):/)) {\n state.allowPlaceholders = false;\n state.allowSteps = true;\n state.allowBackground = false;\n state.allowMultilineArgument = true;\n return \"keyword\";\n\n // SCENARIO\n } else if (!state.inKeywordLine && state.allowScenario && stream.match(/(場景|场景|劇本|剧本|シナリオ|시나리오|เหตุการณ์|ಕಥಾಸಾರಾಂಶ|సన్నివేశం|ਪਟਕਥਾ|परिदृश्य|سيناريو|سناریو|תרחיש|Сценарій|Сценарио|Сценарий|Пример|Σενάριο|Tình huống|The thing of it is|Tapaus|Szenario|Swa|Stsenaarium|Skenario|Situai|Senaryo|Senario|Scenaro|Scenariusz|Scenariu|Scénario|Scenario|Scenarijus|Scenārijs|Scenarij|Scenarie|Scénář|Scenár|Primer|MISHUN|Kịch bản|Keadaan|Heave to|Forgatókönyv|Escenario|Escenari|Cenário|Cenario|Awww, look mate|Atburðarás):/)) {\n state.allowPlaceholders = false;\n state.allowSteps = true;\n state.allowBackground = false;\n state.allowMultilineArgument = false;\n state.inKeywordLine = true;\n return \"keyword\";\n\n // STEPS\n } else if (!state.inKeywordLine && state.allowSteps && stream.match(/(那麼|那么|而且|當|当|并且|同時|同时|前提|假设|假設|假定|假如|但是|但し|並且|もし|ならば|ただし|しかし|かつ|하지만|조건|먼저|만일|만약|단|그리고|그러면|และ |เมื่อ |แต่ |ดังนั้น |กำหนดให้ |ಸ್ಥಿತಿಯನ್ನು |ಮತ್ತು |ನೀಡಿದ |ನಂತರ |ಆದರೆ |మరియు |చెప్పబడినది |కాని |ఈ పరిస్థితిలో |అప్పుడు |ਪਰ |ਤਦ |ਜੇਕਰ |ਜਿਵੇਂ ਕਿ |ਜਦੋਂ |ਅਤੇ |यदि |परन्तु |पर |तब |तदा |तथा |जब |चूंकि |किन्तु |कदा |और |अगर |و |هنگامی |متى |لكن |عندما |ثم |بفرض |با فرض |اما |اذاً |آنگاه |כאשר |וגם |בהינתן |אזי |אז |אבל |Якщо |Һәм |Унда |Тоді |Тогда |То |Также |Та |Пусть |Припустимо, що |Припустимо |Онда |Но |Нехай |Нәтиҗәдә |Лекин |Ләкин |Коли |Когда |Когато |Када |Кад |К тому же |І |И |Задато |Задати |Задате |Если |Допустим |Дано |Дадено |Вә |Ва |Бирок |Әмма |Әйтик |Әгәр |Аммо |Али |Але |Агар |А також |А |Τότε |Όταν |Και |Δεδομένου |Αλλά |Þurh |Þegar |Þa þe |Þá |Þa |Zatati |Zakładając |Zadato |Zadate |Zadano |Zadani |Zadan |Za předpokladu |Za predpokladu |Youse know when youse got |Youse know like when |Yna |Yeah nah |Y'know |Y |Wun |Wtedy |When y'all |When |Wenn |WEN |wann |Ve |Và |Und |Un |ugeholl |Too right |Thurh |Thì |Then y'all |Then |Tha the |Tha |Tetapi |Tapi |Tak |Tada |Tad |Stel |Soit |Siis |Și |Şi |Si |Sed |Se |Så |Quando |Quand |Quan |Pryd |Potom |Pokud |Pokiaľ |Però |Pero |Pak |Oraz |Onda |Ond |Oletetaan |Og |Och |O zaman |Niin |Nhưng |När |Når |Mutta |Men |Mas |Maka |Majd |Mając |Mais |Maar |mä |Ma |Lorsque |Lorsqu'|Logo |Let go and haul |Kun |Kuid |Kui |Kiedy |Khi |Ketika |Kemudian |Keď |Když |Kaj |Kai |Kada |Kad |Jeżeli |Jeśli |Ja |It's just unbelievable |Ir |I CAN HAZ |I |Ha |Givun |Givet |Given y'all |Given |Gitt |Gegeven |Gegeben seien |Gegeben sei |Gdy |Gangway! |Fakat |Étant donnés |Etant donnés |Étant données |Etant données |Étant donnée |Etant donnée |Étant donné |Etant donné |Et |És |Entonces |Entón |Então |Entao |En |Eğer ki |Ef |Eeldades |E |Ðurh |Duota |Dun |Donitaĵo |Donat |Donada |Do |Diyelim ki |Diberi |Dengan |Den youse gotta |DEN |De |Dato |Dați fiind |Daţi fiind |Dati fiind |Dati |Date fiind |Date |Data |Dat fiind |Dar |Dann |dann |Dan |Dados |Dado |Dadas |Dada |Ða ðe |Ða |Cuando |Cho |Cando |Când |Cand |Cal |But y'all |But at the end of the day I reckon |BUT |But |Buh |Blimey! |Biết |Bet |Bagi |Aye |awer |Avast! |Atunci |Atesa |Atès |Apabila |Anrhegedig a |Angenommen |And y'all |And |AN |An |an |Amikor |Amennyiben |Ama |Als |Alors |Allora |Ali |Aleshores |Ale |Akkor |Ak |Adott |Ac |Aber |A zároveň |A tiež |A taktiež |A také |A |a |7 |\\* )/)) {\n state.inStep = true;\n state.allowPlaceholders = true;\n state.allowMultilineArgument = true;\n state.inKeywordLine = true;\n return \"keyword\";\n\n // INLINE STRING\n } else if (stream.match(/\"[^\"]*\"?/)) {\n return \"string\";\n\n // PLACEHOLDER\n } else if (state.allowPlaceholders && stream.match(/<[^>]*>?/)) {\n return \"variable\";\n\n // Fall through\n } else {\n stream.next();\n stream.eatWhile(/[^@\"<#]/);\n return null;\n }\n }\n};\n\n"],"names":["gherkin","name","startState","lineNumber","tableHeaderLine","allowFeature","allowBackground","allowScenario","allowSteps","allowPlaceholders","allowMultilineArgument","inMultilineString","inMultilineTable","inKeywordLine","token","stream","state","sol","match","eatSpace","inStep","next","eatWhile"],"sourceRoot":""} \ No newline at end of file diff --git a/pr-preview/pr-707/1649.index.js b/pr-preview/pr-707/1649.index.js new file mode 100644 index 00000000..6b0fa4e7 --- /dev/null +++ b/pr-preview/pr-707/1649.index.js @@ -0,0 +1,2 @@ +"use strict";(self.webpackChunkthebe=self.webpackChunkthebe||[]).push([[1649],{1649:(O,T,E)=>{function e(O){for(var T={},E=O.split(" "),e=0;eC});var I="ABS ACOS ARITY ASIN ATAN AVG BAGSIZE BINSTORAGE BLOOM BUILDBLOOM CBRT CEIL CONCAT COR COS COSH COUNT COUNT_STAR COV CONSTANTSIZE CUBEDIMENSIONS DIFF DISTINCT DOUBLEABS DOUBLEAVG DOUBLEBASE DOUBLEMAX DOUBLEMIN DOUBLEROUND DOUBLESUM EXP FLOOR FLOATABS FLOATAVG FLOATMAX FLOATMIN FLOATROUND FLOATSUM GENERICINVOKER INDEXOF INTABS INTAVG INTMAX INTMIN INTSUM INVOKEFORDOUBLE INVOKEFORFLOAT INVOKEFORINT INVOKEFORLONG INVOKEFORSTRING INVOKER ISEMPTY JSONLOADER JSONMETADATA JSONSTORAGE LAST_INDEX_OF LCFIRST LOG LOG10 LOWER LONGABS LONGAVG LONGMAX LONGMIN LONGSUM MAX MIN MAPSIZE MONITOREDUDF NONDETERMINISTIC OUTPUTSCHEMA PIGSTORAGE PIGSTREAMING RANDOM REGEX_EXTRACT REGEX_EXTRACT_ALL REPLACE ROUND SIN 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words(str) {\n var obj = {}, words = str.split(\" \");\n for (var i = 0; i < words.length; ++i) obj[words[i]] = true;\n return obj;\n}\n\n// builtin funcs taken from trunk revision 1303237\nvar pBuiltins = \"ABS ACOS ARITY ASIN ATAN AVG BAGSIZE BINSTORAGE BLOOM BUILDBLOOM CBRT CEIL \"\n + \"CONCAT COR COS COSH COUNT COUNT_STAR COV CONSTANTSIZE CUBEDIMENSIONS DIFF DISTINCT DOUBLEABS \"\n + \"DOUBLEAVG DOUBLEBASE DOUBLEMAX DOUBLEMIN DOUBLEROUND DOUBLESUM EXP FLOOR FLOATABS FLOATAVG \"\n + \"FLOATMAX FLOATMIN FLOATROUND FLOATSUM GENERICINVOKER INDEXOF INTABS INTAVG INTMAX INTMIN \"\n + \"INTSUM INVOKEFORDOUBLE INVOKEFORFLOAT INVOKEFORINT INVOKEFORLONG INVOKEFORSTRING INVOKER \"\n + \"ISEMPTY JSONLOADER JSONMETADATA JSONSTORAGE LAST_INDEX_OF LCFIRST LOG LOG10 LOWER LONGABS \"\n + \"LONGAVG LONGMAX LONGMIN LONGSUM MAX MIN MAPSIZE MONITOREDUDF NONDETERMINISTIC OUTPUTSCHEMA \"\n + \"PIGSTORAGE PIGSTREAMING RANDOM REGEX_EXTRACT REGEX_EXTRACT_ALL REPLACE ROUND SIN SINH SIZE \"\n + \"SQRT 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\"small\",\"source\",\"span\",\"strong\",\"style\",\"sub\",\"summary\",\"sup\",\"table\",\"tbody\",\"td\",\"textarea\",\"tfoot\",\"th\",\"thead\",\"time\",\"tr\",\"track\", \"u\",\"ul\",\"var\",\"video\"];\n\n// github.com/codemirror/CodeMirror/blob/master/mode/css/css.js\n// Note, \"url-prefix\" should precede \"url\" in order to match correctly in documentTypesRegexp\nvar documentTypes_ = [\"domain\", \"regexp\", \"url-prefix\", \"url\"];\nvar mediaTypes_ = [\"all\",\"aural\",\"braille\",\"handheld\",\"print\",\"projection\",\"screen\",\"tty\",\"tv\",\"embossed\"];\nvar mediaFeatures_ = [\"width\",\"min-width\",\"max-width\",\"height\",\"min-height\",\"max-height\",\"device-width\",\"min-device-width\",\"max-device-width\",\"device-height\",\"min-device-height\",\"max-device-height\",\"aspect-ratio\",\"min-aspect-ratio\",\"max-aspect-ratio\",\"device-aspect-ratio\",\"min-device-aspect-ratio\",\"max-device-aspect-ratio\",\"color\",\"min-color\",\"max-color\",\"color-index\",\"min-color-index\",\"max-color-index\",\"monochrome\",\"min-monochrome\",\"max-monochrome\",\"resolution\",\"min-resolution\",\"max-resolution\",\"scan\",\"grid\",\"dynamic-range\",\"video-dynamic-range\"];\nvar propertyKeywords_ = [\"align-content\",\"align-items\",\"align-self\",\"alignment-adjust\",\"alignment-baseline\",\"anchor-point\",\"animation\",\"animation-delay\",\"animation-direction\",\"animation-duration\",\"animation-fill-mode\",\"animation-iteration-count\",\"animation-name\",\"animation-play-state\",\"animation-timing-function\",\"appearance\",\"azimuth\",\"backface-visibility\",\"background\",\"background-attachment\",\"background-clip\",\"background-color\",\"background-image\",\"background-origin\",\"background-position\",\"background-repeat\",\"background-size\",\"baseline-shift\",\"binding\",\"bleed\",\"bookmark-label\",\"bookmark-level\",\"bookmark-state\",\"bookmark-target\",\"border\",\"border-bottom\",\"border-bottom-color\",\"border-bottom-left-radius\",\"border-bottom-right-radius\",\"border-bottom-style\",\"border-bottom-width\",\"border-collapse\",\"border-color\",\"border-image\",\"border-image-outset\",\"border-image-repeat\",\"border-image-slice\",\"border-image-source\",\"border-image-width\",\"border-left\",\"border-left-color\",\"border-left-style\",\"border-left-width\",\"border-radius\",\"border-right\",\"border-right-color\",\"border-right-style\",\"border-right-width\",\"border-spacing\",\"border-style\",\"border-top\",\"border-top-color\",\"border-top-left-radius\",\"border-top-right-radius\",\"border-top-style\",\"border-top-width\",\"border-width\",\"bottom\",\"box-decoration-break\",\"box-shadow\",\"box-sizing\",\"break-after\",\"break-before\",\"break-inside\",\"caption-side\",\"clear\",\"clip\",\"color\",\"color-profile\",\"column-count\",\"column-fill\",\"column-gap\",\"column-rule\",\"column-rule-color\",\"column-rule-style\",\"column-rule-width\",\"column-span\",\"column-width\",\"columns\",\"content\",\"counter-increment\",\"counter-reset\",\"crop\",\"cue\",\"cue-after\",\"cue-before\",\"cursor\",\"direction\",\"display\",\"dominant-baseline\",\"drop-initial-after-adjust\",\"drop-initial-after-align\",\"drop-initial-before-adjust\",\"drop-initial-before-align\",\"drop-initial-size\",\"drop-initial-value\",\"elevation\",\"empty-cells\",\"fit\",\"fit-position\",\"flex\",\"flex-basis\",\"flex-direction\",\"flex-flow\",\"flex-grow\",\"flex-shrink\",\"flex-wrap\",\"float\",\"float-offset\",\"flow-from\",\"flow-into\",\"font\",\"font-feature-settings\",\"font-family\",\"font-kerning\",\"font-language-override\",\"font-size\",\"font-size-adjust\",\"font-stretch\",\"font-style\",\"font-synthesis\",\"font-variant\",\"font-variant-alternates\",\"font-variant-caps\",\"font-variant-east-asian\",\"font-variant-ligatures\",\"font-variant-numeric\",\"font-variant-position\",\"font-weight\",\"grid\",\"grid-area\",\"grid-auto-columns\",\"grid-auto-flow\",\"grid-auto-position\",\"grid-auto-rows\",\"grid-column\",\"grid-column-end\",\"grid-column-start\",\"grid-row\",\"grid-row-end\",\"grid-row-start\",\"grid-template\",\"grid-template-areas\",\"grid-template-columns\",\"grid-template-rows\",\"hanging-punctuation\",\"height\",\"hyphens\",\"icon\",\"image-orientation\",\"image-rendering\",\"image-resolution\",\"inline-box-align\",\"justify-content\",\"left\",\"letter-spacing\",\"line-break\",\"line-height\",\"line-stacking\",\"line-stacking-ruby\",\"line-stacking-shift\",\"line-stacking-strategy\",\"list-style\",\"list-style-image\",\"list-style-position\",\"list-style-type\",\"margin\",\"margin-bottom\",\"margin-left\",\"margin-right\",\"margin-top\",\"marker-offset\",\"marks\",\"marquee-direction\",\"marquee-loop\",\"marquee-play-count\",\"marquee-speed\",\"marquee-style\",\"max-height\",\"max-width\",\"min-height\",\"min-width\",\"move-to\",\"nav-down\",\"nav-index\",\"nav-left\",\"nav-right\",\"nav-up\",\"object-fit\",\"object-position\",\"opacity\",\"order\",\"orphans\",\"outline\",\"outline-color\",\"outline-offset\",\"outline-style\",\"outline-width\",\"overflow\",\"overflow-style\",\"overflow-wrap\",\"overflow-x\",\"overflow-y\",\"padding\",\"padding-bottom\",\"padding-left\",\"padding-right\",\"padding-top\",\"page\",\"page-break-after\",\"page-break-before\",\"page-break-inside\",\"page-policy\",\"pause\",\"pause-after\",\"pause-before\",\"perspective\",\"perspective-origin\",\"pitch\",\"pitch-range\",\"play-during\",\"position\",\"presentation-level\",\"punctuation-trim\",\"quotes\",\"region-break-after\",\"region-break-before\",\"region-break-inside\",\"region-fragment\",\"rendering-intent\",\"resize\",\"rest\",\"rest-after\",\"rest-before\",\"richness\",\"right\",\"rotation\",\"rotation-point\",\"ruby-align\",\"ruby-overhang\",\"ruby-position\",\"ruby-span\",\"shape-image-threshold\",\"shape-inside\",\"shape-margin\",\"shape-outside\",\"size\",\"speak\",\"speak-as\",\"speak-header\",\"speak-numeral\",\"speak-punctuation\",\"speech-rate\",\"stress\",\"string-set\",\"tab-size\",\"table-layout\",\"target\",\"target-name\",\"target-new\",\"target-position\",\"text-align\",\"text-align-last\",\"text-decoration\",\"text-decoration-color\",\"text-decoration-line\",\"text-decoration-skip\",\"text-decoration-style\",\"text-emphasis\",\"text-emphasis-color\",\"text-emphasis-position\",\"text-emphasis-style\",\"text-height\",\"text-indent\",\"text-justify\",\"text-outline\",\"text-overflow\",\"text-shadow\",\"text-size-adjust\",\"text-space-collapse\",\"text-transform\",\"text-underline-position\",\"text-wrap\",\"top\",\"transform\",\"transform-origin\",\"transform-style\",\"transition\",\"transition-delay\",\"transition-duration\",\"transition-property\",\"transition-timing-function\",\"unicode-bidi\",\"vertical-align\",\"visibility\",\"voice-balance\",\"voice-duration\",\"voice-family\",\"voice-pitch\",\"voice-range\",\"voice-rate\",\"voice-stress\",\"voice-volume\",\"volume\",\"white-space\",\"widows\",\"width\",\"will-change\",\"word-break\",\"word-spacing\",\"word-wrap\",\"z-index\",\"clip-path\",\"clip-rule\",\"mask\",\"enable-background\",\"filter\",\"flood-color\",\"flood-opacity\",\"lighting-color\",\"stop-color\",\"stop-opacity\",\"pointer-events\",\"color-interpolation\",\"color-interpolation-filters\",\"color-rendering\",\"fill\",\"fill-opacity\",\"fill-rule\",\"image-rendering\",\"marker\",\"marker-end\",\"marker-mid\",\"marker-start\",\"shape-rendering\",\"stroke\",\"stroke-dasharray\",\"stroke-dashoffset\",\"stroke-linecap\",\"stroke-linejoin\",\"stroke-miterlimit\",\"stroke-opacity\",\"stroke-width\",\"text-rendering\",\"baseline-shift\",\"dominant-baseline\",\"glyph-orientation-horizontal\",\"glyph-orientation-vertical\",\"text-anchor\",\"writing-mode\",\"font-smoothing\",\"osx-font-smoothing\"];\nvar nonStandardPropertyKeywords_ = [\"scrollbar-arrow-color\",\"scrollbar-base-color\",\"scrollbar-dark-shadow-color\",\"scrollbar-face-color\",\"scrollbar-highlight-color\",\"scrollbar-shadow-color\",\"scrollbar-3d-light-color\",\"scrollbar-track-color\",\"shape-inside\",\"searchfield-cancel-button\",\"searchfield-decoration\",\"searchfield-results-button\",\"searchfield-results-decoration\",\"zoom\"];\nvar fontProperties_ = [\"font-family\",\"src\",\"unicode-range\",\"font-variant\",\"font-feature-settings\",\"font-stretch\",\"font-weight\",\"font-style\"];\nvar colorKeywords_ = [\"aliceblue\",\"antiquewhite\",\"aqua\",\"aquamarine\",\"azure\",\"beige\",\"bisque\",\"black\",\"blanchedalmond\",\"blue\",\"blueviolet\",\"brown\",\"burlywood\",\"cadetblue\",\"chartreuse\",\"chocolate\",\"coral\",\"cornflowerblue\",\"cornsilk\",\"crimson\",\"cyan\",\"darkblue\",\"darkcyan\",\"darkgoldenrod\",\"darkgray\",\"darkgreen\",\"darkkhaki\",\"darkmagenta\",\"darkolivegreen\",\"darkorange\",\"darkorchid\",\"darkred\",\"darksalmon\",\"darkseagreen\",\"darkslateblue\",\"darkslategray\",\"darkturquoise\",\"darkviolet\",\"deeppink\",\"deepskyblue\",\"dimgray\",\"dodgerblue\",\"firebrick\",\"floralwhite\",\"forestgreen\",\"fuchsia\",\"gainsboro\",\"ghostwhite\",\"gold\",\"goldenrod\",\"gray\",\"grey\",\"green\",\"greenyellow\",\"honeydew\",\"hotpink\",\"indianred\",\"indigo\",\"ivory\",\"khaki\",\"lavender\",\"lavenderblush\",\"lawngreen\",\"lemonchiffon\",\"lightblue\",\"lightcoral\",\"lightcyan\",\"lightgoldenrodyellow\",\"lightgray\",\"lightgreen\",\"lightpink\",\"lightsalmon\",\"lightseagreen\",\"lightskyblue\",\"lightslategray\",\"lightsteelblue\",\"lightyellow\",\"lime\",\"limegreen\",\"linen\",\"magenta\",\"maroon\",\"mediumaquamarine\",\"mediumblue\",\"mediumorchid\",\"mediumpurple\",\"mediumseagreen\",\"mediumslateblue\",\"mediumspringgreen\",\"mediumturquoise\",\"mediumvioletred\",\"midnightblue\",\"mintcream\",\"mistyrose\",\"moccasin\",\"navajowhite\",\"navy\",\"oldlace\",\"olive\",\"olivedrab\",\"orange\",\"orangered\",\"orchid\",\"palegoldenrod\",\"palegreen\",\"paleturquoise\",\"palevioletred\",\"papayawhip\",\"peachpuff\",\"peru\",\"pink\",\"plum\",\"powderblue\",\"purple\",\"rebeccapurple\",\"red\",\"rosybrown\",\"royalblue\",\"saddlebrown\",\"salmon\",\"sandybrown\",\"seagreen\",\"seashell\",\"sienna\",\"silver\",\"skyblue\",\"slateblue\",\"slategray\",\"snow\",\"springgreen\",\"steelblue\",\"tan\",\"teal\",\"thistle\",\"tomato\",\"turquoise\",\"violet\",\"wheat\",\"white\",\"whitesmoke\",\"yellow\",\"yellowgreen\"];\nvar valueKeywords_ = [\"above\",\"absolute\",\"activeborder\",\"additive\",\"activecaption\",\"afar\",\"after-white-space\",\"ahead\",\"alias\",\"all\",\"all-scroll\",\"alphabetic\",\"alternate\",\"always\",\"amharic\",\"amharic-abegede\",\"antialiased\",\"appworkspace\",\"arabic-indic\",\"armenian\",\"asterisks\",\"attr\",\"auto\",\"avoid\",\"avoid-column\",\"avoid-page\",\"avoid-region\",\"background\",\"backwards\",\"baseline\",\"below\",\"bidi-override\",\"binary\",\"bengali\",\"blink\",\"block\",\"block-axis\",\"bold\",\"bolder\",\"border\",\"border-box\",\"both\",\"bottom\",\"break\",\"break-all\",\"break-word\",\"bullets\",\"button\",\"buttonface\",\"buttonhighlight\",\"buttonshadow\",\"buttontext\",\"calc\",\"cambodian\",\"capitalize\",\"caps-lock-indicator\",\"caption\",\"captiontext\",\"caret\",\"cell\",\"center\",\"checkbox\",\"circle\",\"cjk-decimal\",\"cjk-earthly-branch\",\"cjk-heavenly-stem\",\"cjk-ideographic\",\"clear\",\"clip\",\"close-quote\",\"col-resize\",\"collapse\",\"column\",\"compact\",\"condensed\",\"conic-gradient\",\"contain\",\"content\",\"contents\",\"content-box\",\"context-menu\",\"continuous\",\"copy\",\"counter\",\"counters\",\"cover\",\"crop\",\"cross\",\"crosshair\",\"currentcolor\",\"cursive\",\"cyclic\",\"dashed\",\"decimal\",\"decimal-leading-zero\",\"default\",\"default-button\",\"destination-atop\",\"destination-in\",\"destination-out\",\"destination-over\",\"devanagari\",\"disc\",\"discard\",\"disclosure-closed\",\"disclosure-open\",\"document\",\"dot-dash\",\"dot-dot-dash\",\"dotted\",\"double\",\"down\",\"e-resize\",\"ease\",\"ease-in\",\"ease-in-out\",\"ease-out\",\"element\",\"ellipse\",\"ellipsis\",\"embed\",\"end\",\"ethiopic\",\"ethiopic-abegede\",\"ethiopic-abegede-am-et\",\"ethiopic-abegede-gez\",\"ethiopic-abegede-ti-er\",\"ethiopic-abegede-ti-et\",\"ethiopic-halehame-aa-er\",\"ethiopic-halehame-aa-et\",\"ethiopic-halehame-am-et\",\"ethiopic-halehame-gez\",\"ethiopic-halehame-om-et\",\"ethiopic-halehame-sid-et\",\"ethiopic-halehame-so-et\",\"ethiopic-halehame-ti-er\",\"ethiopic-halehame-ti-et\",\"ethiopic-halehame-tig\",\"ethiopic-numeric\",\"ew-resize\",\"expanded\",\"extends\",\"extra-condensed\",\"extra-expanded\",\"fantasy\",\"fast\",\"fill\",\"fixed\",\"flat\",\"flex\",\"footnotes\",\"forwards\",\"from\",\"geometricPrecision\",\"georgian\",\"graytext\",\"groove\",\"gujarati\",\"gurmukhi\",\"hand\",\"hangul\",\"hangul-consonant\",\"hebrew\",\"help\",\"hidden\",\"hide\",\"high\",\"higher\",\"highlight\",\"highlighttext\",\"hiragana\",\"hiragana-iroha\",\"horizontal\",\"hsl\",\"hsla\",\"icon\",\"ignore\",\"inactiveborder\",\"inactivecaption\",\"inactivecaptiontext\",\"infinite\",\"infobackground\",\"infotext\",\"inherit\",\"initial\",\"inline\",\"inline-axis\",\"inline-block\",\"inline-flex\",\"inline-table\",\"inset\",\"inside\",\"intrinsic\",\"invert\",\"italic\",\"japanese-formal\",\"japanese-informal\",\"justify\",\"kannada\",\"katakana\",\"katakana-iroha\",\"keep-all\",\"khmer\",\"korean-hangul-formal\",\"korean-hanja-formal\",\"korean-hanja-informal\",\"landscape\",\"lao\",\"large\",\"larger\",\"left\",\"level\",\"lighter\",\"line-through\",\"linear\",\"linear-gradient\",\"lines\",\"list-item\",\"listbox\",\"listitem\",\"local\",\"logical\",\"loud\",\"lower\",\"lower-alpha\",\"lower-armenian\",\"lower-greek\",\"lower-hexadecimal\",\"lower-latin\",\"lower-norwegian\",\"lower-roman\",\"lowercase\",\"ltr\",\"malayalam\",\"match\",\"matrix\",\"matrix3d\",\"media-play-button\",\"media-slider\",\"media-sliderthumb\",\"media-volume-slider\",\"media-volume-sliderthumb\",\"medium\",\"menu\",\"menulist\",\"menulist-button\",\"menutext\",\"message-box\",\"middle\",\"min-intrinsic\",\"mix\",\"mongolian\",\"monospace\",\"move\",\"multiple\",\"myanmar\",\"n-resize\",\"narrower\",\"ne-resize\",\"nesw-resize\",\"no-close-quote\",\"no-drop\",\"no-open-quote\",\"no-repeat\",\"none\",\"normal\",\"not-allowed\",\"nowrap\",\"ns-resize\",\"numbers\",\"numeric\",\"nw-resize\",\"nwse-resize\",\"oblique\",\"octal\",\"open-quote\",\"optimizeLegibility\",\"optimizeSpeed\",\"oriya\",\"oromo\",\"outset\",\"outside\",\"outside-shape\",\"overlay\",\"overline\",\"padding\",\"padding-box\",\"painted\",\"page\",\"paused\",\"persian\",\"perspective\",\"plus-darker\",\"plus-lighter\",\"pointer\",\"polygon\",\"portrait\",\"pre\",\"pre-line\",\"pre-wrap\",\"preserve-3d\",\"progress\",\"push-button\",\"radial-gradient\",\"radio\",\"read-only\",\"read-write\",\"read-write-plaintext-only\",\"rectangle\",\"region\",\"relative\",\"repeat\",\"repeating-linear-gradient\",\"repeating-radial-gradient\",\"repeating-conic-gradient\",\"repeat-x\",\"repeat-y\",\"reset\",\"reverse\",\"rgb\",\"rgba\",\"ridge\",\"right\",\"rotate\",\"rotate3d\",\"rotateX\",\"rotateY\",\"rotateZ\",\"round\",\"row-resize\",\"rtl\",\"run-in\",\"running\",\"s-resize\",\"sans-serif\",\"scale\",\"scale3d\",\"scaleX\",\"scaleY\",\"scaleZ\",\"scroll\",\"scrollbar\",\"scroll-position\",\"se-resize\",\"searchfield\",\"searchfield-cancel-button\",\"searchfield-decoration\",\"searchfield-results-button\",\"searchfield-results-decoration\",\"semi-condensed\",\"semi-expanded\",\"separate\",\"serif\",\"show\",\"sidama\",\"simp-chinese-formal\",\"simp-chinese-informal\",\"single\",\"skew\",\"skewX\",\"skewY\",\"skip-white-space\",\"slide\",\"slider-horizontal\",\"slider-vertical\",\"sliderthumb-horizontal\",\"sliderthumb-vertical\",\"slow\",\"small\",\"small-caps\",\"small-caption\",\"smaller\",\"solid\",\"somali\",\"source-atop\",\"source-in\",\"source-out\",\"source-over\",\"space\",\"spell-out\",\"square\",\"square-button\",\"standard\",\"start\",\"static\",\"status-bar\",\"stretch\",\"stroke\",\"sub\",\"subpixel-antialiased\",\"super\",\"sw-resize\",\"symbolic\",\"symbols\",\"table\",\"table-caption\",\"table-cell\",\"table-column\",\"table-column-group\",\"table-footer-group\",\"table-header-group\",\"table-row\",\"table-row-group\",\"tamil\",\"telugu\",\"text\",\"text-bottom\",\"text-top\",\"textarea\",\"textfield\",\"thai\",\"thick\",\"thin\",\"threeddarkshadow\",\"threedface\",\"threedhighlight\",\"threedlightshadow\",\"threedshadow\",\"tibetan\",\"tigre\",\"tigrinya-er\",\"tigrinya-er-abegede\",\"tigrinya-et\",\"tigrinya-et-abegede\",\"to\",\"top\",\"trad-chinese-formal\",\"trad-chinese-informal\",\"translate\",\"translate3d\",\"translateX\",\"translateY\",\"translateZ\",\"transparent\",\"ultra-condensed\",\"ultra-expanded\",\"underline\",\"up\",\"upper-alpha\",\"upper-armenian\",\"upper-greek\",\"upper-hexadecimal\",\"upper-latin\",\"upper-norwegian\",\"upper-roman\",\"uppercase\",\"urdu\",\"url\",\"var\",\"vertical\",\"vertical-text\",\"visible\",\"visibleFill\",\"visiblePainted\",\"visibleStroke\",\"visual\",\"w-resize\",\"wait\",\"wave\",\"wider\",\"window\",\"windowframe\",\"windowtext\",\"words\",\"x-large\",\"x-small\",\"xor\",\"xx-large\",\"xx-small\",\"bicubic\",\"optimizespeed\",\"grayscale\",\"row\",\"row-reverse\",\"wrap\",\"wrap-reverse\",\"column-reverse\",\"flex-start\",\"flex-end\",\"space-between\",\"space-around\", \"unset\"];\n\nvar wordOperatorKeywords_ = [\"in\",\"and\",\"or\",\"not\",\"is not\",\"is a\",\"is\",\"isnt\",\"defined\",\"if unless\"],\n blockKeywords_ = [\"for\",\"if\",\"else\",\"unless\", \"from\", \"to\"],\n commonAtoms_ = [\"null\",\"true\",\"false\",\"href\",\"title\",\"type\",\"not-allowed\",\"readonly\",\"disabled\"],\n commonDef_ = [\"@font-face\", \"@keyframes\", \"@media\", \"@viewport\", \"@page\", \"@host\", \"@supports\", \"@block\", \"@css\"];\n\nvar hintWords = tagKeywords_.concat(documentTypes_,mediaTypes_,mediaFeatures_,\n propertyKeywords_,nonStandardPropertyKeywords_,\n colorKeywords_,valueKeywords_,fontProperties_,\n wordOperatorKeywords_,blockKeywords_,\n commonAtoms_,commonDef_);\n\nfunction wordRegexp(words) {\n words = words.sort(function(a,b){return b > a;});\n return new RegExp(\"^((\" + words.join(\")|(\") + \"))\\\\b\");\n}\n\nfunction keySet(array) {\n var keys = {};\n for (var i = 0; i < array.length; ++i) keys[array[i]] = true;\n return keys;\n}\n\nfunction escapeRegExp(text) {\n return text.replace(/[-[\\]{}()*+?.,\\\\^$|#\\s]/g, \"\\\\$&\");\n}\n\nvar tagKeywords = keySet(tagKeywords_),\n tagVariablesRegexp = /^(a|b|i|s|col|em)$/i,\n propertyKeywords = keySet(propertyKeywords_),\n nonStandardPropertyKeywords = keySet(nonStandardPropertyKeywords_),\n valueKeywords = keySet(valueKeywords_),\n colorKeywords = keySet(colorKeywords_),\n documentTypes = keySet(documentTypes_),\n documentTypesRegexp = wordRegexp(documentTypes_),\n mediaFeatures = keySet(mediaFeatures_),\n mediaTypes = keySet(mediaTypes_),\n fontProperties = keySet(fontProperties_),\n operatorsRegexp = /^\\s*([.]{2,3}|&&|\\|\\||\\*\\*|[?!=:]?=|[-+*\\/%<>]=?|\\?:|\\~)/,\n wordOperatorKeywordsRegexp = wordRegexp(wordOperatorKeywords_),\n blockKeywords = keySet(blockKeywords_),\n vendorPrefixesRegexp = new RegExp(/^\\-(moz|ms|o|webkit)-/i),\n commonAtoms = keySet(commonAtoms_),\n firstWordMatch = \"\",\n states = {},\n ch,\n style,\n type,\n override;\n\n/**\n * Tokenizers\n */\nfunction tokenBase(stream, state) {\n firstWordMatch = stream.string.match(/(^[\\w-]+\\s*=\\s*$)|(^\\s*[\\w-]+\\s*=\\s*[\\w-])|(^\\s*(\\.|#|@|\\$|\\&|\\[|\\d|\\+|::?|\\{|\\>|~|\\/)?\\s*[\\w-]*([a-z0-9-]|\\*|\\/\\*)(\\(|,)?)/);\n state.context.line.firstWord = firstWordMatch ? firstWordMatch[0].replace(/^\\s*/, \"\") : \"\";\n state.context.line.indent = stream.indentation();\n ch = stream.peek();\n\n // Line comment\n if (stream.match(\"//\")) {\n stream.skipToEnd();\n return [\"comment\", \"comment\"];\n }\n // Block comment\n if (stream.match(\"/*\")) {\n state.tokenize = tokenCComment;\n return tokenCComment(stream, state);\n }\n // String\n if (ch == \"\\\"\" || ch == \"'\") {\n stream.next();\n state.tokenize = tokenString(ch);\n return state.tokenize(stream, state);\n }\n // Def\n if (ch == \"@\") {\n stream.next();\n stream.eatWhile(/[\\w\\\\-]/);\n return [\"def\", stream.current()];\n }\n // ID selector or Hex color\n if (ch == \"#\") {\n stream.next();\n // Hex color\n if (stream.match(/^[0-9a-f]{3}([0-9a-f]([0-9a-f]{2}){0,2})?\\b(?!-)/i)) {\n return [\"atom\", \"atom\"];\n }\n // ID selector\n if (stream.match(/^[a-z][\\w-]*/i)) {\n return [\"builtin\", \"hash\"];\n }\n }\n // Vendor prefixes\n if (stream.match(vendorPrefixesRegexp)) {\n return [\"meta\", \"vendor-prefixes\"];\n }\n // Numbers\n if (stream.match(/^-?[0-9]?\\.?[0-9]/)) {\n stream.eatWhile(/[a-z%]/i);\n return [\"number\", \"unit\"];\n }\n // !important|optional\n if (ch == \"!\") {\n stream.next();\n return [stream.match(/^(important|optional)/i) ? \"keyword\": \"operator\", \"important\"];\n }\n // Class\n if (ch == \".\" && stream.match(/^\\.[a-z][\\w-]*/i)) {\n return [\"qualifier\", \"qualifier\"];\n }\n // url url-prefix domain regexp\n if (stream.match(documentTypesRegexp)) {\n if (stream.peek() == \"(\") state.tokenize = tokenParenthesized;\n return [\"property\", \"word\"];\n }\n // Mixins / Functions\n if (stream.match(/^[a-z][\\w-]*\\(/i)) {\n stream.backUp(1);\n return [\"keyword\", \"mixin\"];\n }\n // Block mixins\n if (stream.match(/^(\\+|-)[a-z][\\w-]*\\(/i)) {\n stream.backUp(1);\n return [\"keyword\", \"block-mixin\"];\n }\n // Parent Reference BEM naming\n if (stream.string.match(/^\\s*&/) && stream.match(/^[-_]+[a-z][\\w-]*/)) {\n return [\"qualifier\", \"qualifier\"];\n }\n // / Root Reference & Parent Reference\n if (stream.match(/^(\\/|&)(-|_|:|\\.|#|[a-z])/)) {\n stream.backUp(1);\n return [\"variableName.special\", \"reference\"];\n }\n if (stream.match(/^&{1}\\s*$/)) {\n return [\"variableName.special\", \"reference\"];\n }\n // Word operator\n if (stream.match(wordOperatorKeywordsRegexp)) {\n return [\"operator\", \"operator\"];\n }\n // Word\n if (stream.match(/^\\$?[-_]*[a-z0-9]+[\\w-]*/i)) {\n // Variable\n if (stream.match(/^(\\.|\\[)[\\w-\\'\\\"\\]]+/i, false)) {\n if (!wordIsTag(stream.current())) {\n stream.match('.');\n return [\"variable\", \"variable-name\"];\n }\n }\n return [\"variable\", \"word\"];\n }\n // Operators\n if (stream.match(operatorsRegexp)) {\n return [\"operator\", stream.current()];\n }\n // Delimiters\n if (/[:;,{}\\[\\]\\(\\)]/.test(ch)) {\n stream.next();\n return [null, ch];\n }\n // Non-detected items\n stream.next();\n return [null, null];\n}\n\n/**\n * Token comment\n */\nfunction tokenCComment(stream, state) {\n var maybeEnd = false, ch;\n while ((ch = stream.next()) != null) {\n if (maybeEnd && ch == \"/\") {\n state.tokenize = null;\n break;\n }\n maybeEnd = (ch == \"*\");\n }\n return [\"comment\", \"comment\"];\n}\n\n/**\n * Token string\n */\nfunction tokenString(quote) {\n return function(stream, state) {\n var escaped = false, ch;\n while ((ch = stream.next()) != null) {\n if (ch == quote && !escaped) {\n if (quote == \")\") stream.backUp(1);\n break;\n }\n escaped = !escaped && ch == \"\\\\\";\n }\n if (ch == quote || !escaped && quote != \")\") state.tokenize = null;\n return [\"string\", \"string\"];\n };\n}\n\n/**\n * Token parenthesized\n */\nfunction tokenParenthesized(stream, state) {\n stream.next(); // Must be \"(\"\n if (!stream.match(/\\s*[\\\"\\')]/, false))\n state.tokenize = tokenString(\")\");\n else\n state.tokenize = null;\n return [null, \"(\"];\n}\n\n/**\n * Context management\n */\nfunction Context(type, indent, prev, line) {\n this.type = type;\n this.indent = indent;\n this.prev = prev;\n this.line = line || {firstWord: \"\", indent: 0};\n}\n\nfunction pushContext(state, stream, type, indent) {\n indent = indent >= 0 ? indent : stream.indentUnit;\n state.context = new Context(type, stream.indentation() + indent, state.context);\n return type;\n}\n\nfunction popContext(state, stream, currentIndent) {\n var contextIndent = state.context.indent - stream.indentUnit;\n currentIndent = currentIndent || false;\n state.context = state.context.prev;\n if (currentIndent) state.context.indent = contextIndent;\n return state.context.type;\n}\n\nfunction pass(type, stream, state) {\n return states[state.context.type](type, stream, state);\n}\n\nfunction popAndPass(type, stream, state, n) {\n for (var i = n || 1; i > 0; i--)\n state.context = state.context.prev;\n return pass(type, stream, state);\n}\n\n\n/**\n * Parser\n */\nfunction wordIsTag(word) {\n return word.toLowerCase() in tagKeywords;\n}\n\nfunction wordIsProperty(word) {\n word = word.toLowerCase();\n return word in propertyKeywords || word in fontProperties;\n}\n\nfunction wordIsBlock(word) {\n return word.toLowerCase() in blockKeywords;\n}\n\nfunction wordIsVendorPrefix(word) {\n return word.toLowerCase().match(vendorPrefixesRegexp);\n}\n\nfunction wordAsValue(word) {\n var wordLC = word.toLowerCase();\n var override = \"variable\";\n if (wordIsTag(word)) override = \"tag\";\n else if (wordIsBlock(word)) override = \"block-keyword\";\n else if (wordIsProperty(word)) override = \"property\";\n else if (wordLC in valueKeywords || wordLC in commonAtoms) override = \"atom\";\n else if (wordLC == \"return\" || wordLC in colorKeywords) override = \"keyword\";\n\n // Font family\n else if (word.match(/^[A-Z]/)) override = \"string\";\n return override;\n}\n\nfunction typeIsBlock(type, stream) {\n return ((endOfLine(stream) && (type == \"{\" || type == \"]\" || type == \"hash\" || type == \"qualifier\")) || type == \"block-mixin\");\n}\n\nfunction typeIsInterpolation(type, stream) {\n return type == \"{\" && stream.match(/^\\s*\\$?[\\w-]+/i, false);\n}\n\nfunction typeIsPseudo(type, stream) {\n return type == \":\" && stream.match(/^[a-z-]+/, false);\n}\n\nfunction startOfLine(stream) {\n return stream.sol() || stream.string.match(new RegExp(\"^\\\\s*\" + escapeRegExp(stream.current())));\n}\n\nfunction endOfLine(stream) {\n return stream.eol() || stream.match(/^\\s*$/, false);\n}\n\nfunction firstWordOfLine(line) {\n var re = /^\\s*[-_]*[a-z0-9]+[\\w-]*/i;\n var result = typeof line == \"string\" ? line.match(re) : line.string.match(re);\n return result ? result[0].replace(/^\\s*/, \"\") : \"\";\n}\n\n\n/**\n * Block\n */\nstates.block = function(type, stream, state) {\n if ((type == \"comment\" && startOfLine(stream)) ||\n (type == \",\" && endOfLine(stream)) ||\n type == \"mixin\") {\n return pushContext(state, stream, \"block\", 0);\n }\n if (typeIsInterpolation(type, stream)) {\n return pushContext(state, stream, \"interpolation\");\n }\n if (endOfLine(stream) && type == \"]\") {\n if (!/^\\s*(\\.|#|:|\\[|\\*|&)/.test(stream.string) && !wordIsTag(firstWordOfLine(stream))) {\n return pushContext(state, stream, \"block\", 0);\n }\n }\n if (typeIsBlock(type, stream)) {\n return pushContext(state, stream, \"block\");\n }\n if (type == \"}\" && endOfLine(stream)) {\n return pushContext(state, stream, \"block\", 0);\n }\n if (type == \"variable-name\") {\n if (stream.string.match(/^\\s?\\$[\\w-\\.\\[\\]\\'\\\"]+$/) || wordIsBlock(firstWordOfLine(stream))) {\n return pushContext(state, stream, \"variableName\");\n }\n else {\n return pushContext(state, stream, 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= \"variable\";\n return \"block\";\n }\n if (/(@import|@require|@charset)/.test(type)) {\n return pushContext(state, stream, \"block\", 0);\n }\n return pushContext(state, stream, \"block\");\n }\n if (type == \"reference\" && endOfLine(stream)) {\n return pushContext(state, stream, \"block\");\n }\n if (type == \"(\") {\n return pushContext(state, stream, \"parens\");\n }\n\n if (type == \"vendor-prefixes\") {\n return pushContext(state, stream, \"vendorPrefixes\");\n }\n if (type == \"word\") {\n var word = stream.current();\n override = wordAsValue(word);\n\n if (override == \"property\") {\n if (startOfLine(stream)) {\n return pushContext(state, stream, \"block\", 0);\n } else {\n override = \"atom\";\n return \"block\";\n }\n }\n\n if (override == \"tag\") {\n\n // tag is a css value\n if (/embed|menu|pre|progress|sub|table/.test(word)) {\n if (wordIsProperty(firstWordOfLine(stream))) {\n override = \"atom\";\n return \"block\";\n }\n }\n\n // tag is an attribute\n if 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stream.string.match(/^\\s?\\$[\\w-\\.\\[\\]\\'\\\"]+$/)) {\n return pushContext(state, stream, \"block\");\n }\n }\n return state.context.type;\n};\n\n\n/**\n * Parens\n */\nstates.parens = function(type, stream, state) {\n if (type == \"(\") return pushContext(state, stream, \"parens\");\n if (type == \")\") {\n if (state.context.prev.type == \"parens\") {\n return popContext(state, stream);\n }\n if ((stream.string.match(/^[a-z][\\w-]*\\(/i) && endOfLine(stream)) ||\n wordIsBlock(firstWordOfLine(stream)) ||\n /(\\.|#|:|\\[|\\*|&|>|~|\\+|\\/)/.test(firstWordOfLine(stream)) ||\n (!stream.string.match(/^-?[a-z][\\w-\\.\\[\\]\\'\\\"]*\\s*=/) &&\n wordIsTag(firstWordOfLine(stream)))) {\n return pushContext(state, stream, \"block\");\n }\n if (stream.string.match(/^[\\$-]?[a-z][\\w-\\.\\[\\]\\'\\\"]*\\s*=/) ||\n stream.string.match(/^\\s*(\\(|\\)|[0-9])/) ||\n stream.string.match(/^\\s+[a-z][\\w-]*\\(/i) ||\n stream.string.match(/^\\s+[\\$-]?[a-z]/i)) {\n return pushContext(state, stream, \"block\", 0);\n }\n if (endOfLine(stream)) return pushContext(state, stream, \"block\");\n else return pushContext(state, stream, \"block\", 0);\n }\n if (type && type.charAt(0) == \"@\" && wordIsProperty(stream.current().slice(1))) {\n override = \"variable\";\n }\n if (type == \"word\") {\n var word = stream.current();\n override = wordAsValue(word);\n if (override == \"tag\" && tagVariablesRegexp.test(word)) {\n override = \"variable\";\n }\n if (override == \"property\" || word == \"to\") override = \"atom\";\n }\n if (type == \"variable-name\") {\n return pushContext(state, stream, \"variableName\");\n }\n if (typeIsPseudo(type, stream)) {\n return pushContext(state, stream, \"pseudo\");\n }\n return state.context.type;\n};\n\n\n/**\n * Vendor prefixes\n */\nstates.vendorPrefixes = function(type, stream, state) {\n if (type == \"word\") {\n override = \"property\";\n return pushContext(state, stream, \"block\", 0);\n }\n return popContext(state, stream);\n};\n\n\n/**\n * Pseudo\n 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simpleMode({\n start: [\n // Block comment: This is a line starting with a comment\n {\n regex: /^\\s*#.*$/,\n sol: true,\n token: \"comment\"\n },\n {\n regex: fromRegex,\n token: [null, \"keyword\"],\n sol: true,\n next: \"from\"\n },\n // Highlight an instruction without any arguments (for convenience)\n {\n regex: instructionOnlyLine,\n token: [null, \"keyword\", null, \"error\"],\n sol: true\n },\n {\n regex: shellsAsArrayRegex,\n token: [null, \"keyword\", null],\n sol: true,\n next: \"array\"\n },\n {\n regex: exposeRegex,\n token: [null, \"keyword\", null],\n sol: true,\n next: \"expose\"\n },\n // Highlight an instruction followed by arguments\n {\n regex: instructionWithArguments,\n token: [null, \"keyword\", null],\n sol: true,\n next: \"arguments\"\n },\n {\n regex: /./,\n token: null\n }\n ],\n from: [\n {\n regex: /\\s*$/,\n token: null,\n next: \"start\"\n },\n {\n // Line comment without instruction arguments is an error\n regex: /(\\s*)(#.*)$/,\n token: [null, \"error\"],\n next: \"start\"\n },\n {\n regex: /(\\s*\\S+\\s+)(as)/i,\n token: [null, \"keyword\"],\n next: \"start\"\n },\n // Fail safe return to start\n {\n token: null,\n next: \"start\"\n }\n ],\n single: [\n {\n regex: /(?:[^\\\\']|\\\\.)/,\n token: \"string\"\n },\n {\n regex: /'/,\n token: \"string\",\n pop: true\n }\n ],\n double: [\n {\n regex: /(?:[^\\\\\"]|\\\\.)/,\n token: \"string\"\n },\n {\n regex: /\"/,\n token: \"string\",\n pop: true\n }\n ],\n array: [\n {\n regex: /\\]/,\n token: null,\n next: \"start\"\n },\n {\n regex: /\"(?:[^\\\\\"]|\\\\.)*\"?/,\n token: \"string\"\n }\n ],\n expose: [\n {\n regex: /\\d+$/,\n token: \"number\",\n next: \"start\"\n },\n {\n regex: /[^\\d]+$/,\n token: null,\n next: \"start\"\n },\n {\n regex: /\\d+/,\n token: \"number\"\n },\n {\n regex: /[^\\d]+/,\n token: null\n },\n // Fail safe return to start\n {\n token: null,\n next: \"start\"\n }\n ],\n arguments: [\n {\n regex: /^\\s*#.*$/,\n sol: true,\n token: \"comment\"\n },\n {\n regex: /\"(?:[^\\\\\"]|\\\\.)*\"?$/,\n token: \"string\",\n next: \"start\"\n },\n {\n regex: /\"/,\n token: \"string\",\n push: \"double\"\n },\n {\n regex: /'(?:[^\\\\']|\\\\.)*'?$/,\n token: \"string\",\n next: \"start\"\n },\n {\n regex: /'/,\n token: \"string\",\n push: \"single\"\n },\n {\n regex: /[^#\"']+[\\\\`]$/,\n token: null\n },\n {\n regex: /[^#\"']+$/,\n token: null,\n next: \"start\"\n },\n {\n regex: /[^#\"']+/,\n token: null\n },\n // Fail safe return to start\n {\n token: null,\n next: \"start\"\n }\n ],\n languageData: {\n commentTokens: {line: \"#\"}\n }\n});\n\n","export function simpleMode(states) {\n ensureState(states, \"start\");\n var states_ = {}, meta = states.languageData || {}, hasIndentation = false;\n for (var state in states) if (state != meta && states.hasOwnProperty(state)) {\n var list = states_[state] = [], orig = states[state];\n for (var i = 0; i < orig.length; i++) {\n var data = orig[i];\n list.push(new Rule(data, states));\n if (data.indent || data.dedent) hasIndentation = true;\n }\n }\n return {\n name: meta.name,\n startState: function() {\n return {state: \"start\", pending: null, indent: hasIndentation ? [] : null};\n },\n copyState: function(state) {\n var s = {state: state.state, pending: state.pending, indent: state.indent && state.indent.slice(0)};\n if (state.stack)\n s.stack = state.stack.slice(0);\n return s;\n },\n token: tokenFunction(states_),\n indent: indentFunction(states_, meta),\n languageData: meta\n }\n};\n\nfunction ensureState(states, name) {\n if (!states.hasOwnProperty(name))\n throw new Error(\"Undefined state \" + name + \" in simple mode\");\n}\n\nfunction toRegex(val, caret) {\n if (!val) return /(?:)/;\n var flags = \"\";\n if (val instanceof RegExp) {\n if (val.ignoreCase) flags = \"i\";\n val = val.source;\n } else {\n val = String(val);\n }\n return new RegExp((caret === false ? \"\" : \"^\") + \"(?:\" + val + \")\", flags);\n}\n\nfunction asToken(val) {\n if (!val) return null;\n if (val.apply) return val\n if (typeof val == \"string\") return val.replace(/\\./g, \" \");\n var result = [];\n for (var i = 0; i < val.length; i++)\n result.push(val[i] && val[i].replace(/\\./g, \" \"));\n return result;\n}\n\nfunction Rule(data, states) {\n if (data.next || data.push) ensureState(states, data.next || data.push);\n this.regex = toRegex(data.regex);\n this.token = asToken(data.token);\n this.data = data;\n}\n\nfunction tokenFunction(states) {\n return function(stream, state) {\n if (state.pending) {\n var pend = state.pending.shift();\n if (state.pending.length == 0) state.pending = null;\n stream.pos += pend.text.length;\n return pend.token;\n }\n\n var curState = states[state.state];\n for (var i = 0; i < curState.length; i++) {\n var rule = curState[i];\n var matches = (!rule.data.sol || stream.sol()) && stream.match(rule.regex);\n if (matches) {\n if (rule.data.next) {\n state.state = rule.data.next;\n } else if (rule.data.push) {\n (state.stack || (state.stack = [])).push(state.state);\n state.state = rule.data.push;\n } else if (rule.data.pop && state.stack && state.stack.length) {\n state.state = state.stack.pop();\n }\n\n if 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{ ExternalTokenizer, ContextTracker, LRParser } from '@lezer/lr';\nimport { styleTags, tags } from '@lezer/highlight';\n\n// This file was generated by lezer-generator. You probably shouldn't edit it.\nconst printKeyword = 1,\n indent = 201,\n dedent = 202,\n newline$1 = 203,\n blankLineStart = 204,\n newlineBracketed = 205,\n eof = 206,\n formatString1Content = 207,\n formatString1Brace = 2,\n formatString1End = 208,\n formatString2Content = 209,\n formatString2Brace = 3,\n formatString2End = 210,\n formatString1lContent = 211,\n formatString1lBrace = 4,\n formatString1lEnd = 212,\n formatString2lContent = 213,\n formatString2lBrace = 5,\n formatString2lEnd = 214,\n ParenL = 26,\n ParenthesizedExpression = 27,\n TupleExpression = 51,\n ComprehensionExpression = 52,\n BracketL = 57,\n ArrayExpression = 58,\n ArrayComprehensionExpression = 59,\n BraceL = 61,\n DictionaryExpression = 62,\n DictionaryComprehensionExpression = 63,\n SetExpression = 64,\n SetComprehensionExpression = 65,\n ArgList = 67,\n subscript = 251,\n FormatString = 74,\n importList = 270,\n TypeParamList = 115,\n ParamList = 133,\n SequencePattern = 154,\n MappingPattern = 155,\n PatternArgList = 158;\n\nconst newline = 10, carriageReturn = 13, space = 32, tab = 9, hash = 35, parenOpen = 40, dot = 46,\n braceOpen = 123, singleQuote = 39, doubleQuote = 34, backslash = 92;\n\nconst bracketed = new Set([\n ParenthesizedExpression, TupleExpression, ComprehensionExpression, importList, ArgList, ParamList,\n ArrayExpression, ArrayComprehensionExpression, subscript,\n SetExpression, SetComprehensionExpression, FormatString,\n DictionaryExpression, DictionaryComprehensionExpression,\n SequencePattern, MappingPattern, PatternArgList, TypeParamList\n]);\n\nfunction isLineBreak(ch) {\n return ch == newline || ch == carriageReturn\n}\n\nconst newlines = new ExternalTokenizer((input, stack) => {\n let prev;\n if (input.next < 0) {\n input.acceptToken(eof);\n } else if (stack.context.depth < 0) {\n if (isLineBreak(input.next)) input.acceptToken(newlineBracketed, 1);\n } else if (((prev = input.peek(-1)) < 0 || isLineBreak(prev)) &&\n stack.canShift(blankLineStart)) {\n let spaces = 0;\n while (input.next == space || input.next == tab) { input.advance(); spaces++; }\n if (input.next == newline || input.next == carriageReturn || input.next == hash)\n input.acceptToken(blankLineStart, -spaces);\n } else if (isLineBreak(input.next)) {\n input.acceptToken(newline$1, 1);\n }\n}, {contextual: true});\n\nconst indentation = new ExternalTokenizer((input, stack) => {\n let cDepth = stack.context.depth;\n if (cDepth < 0) return\n let prev = input.peek(-1);\n if (prev == newline || prev == carriageReturn) {\n let depth = 0, chars = 0;\n for (;;) {\n if (input.next == space) depth++;\n else if (input.next == tab) depth += 8 - (depth % 8);\n else break\n input.advance();\n chars++;\n }\n if (depth != cDepth &&\n input.next != newline && input.next != carriageReturn && input.next != hash) {\n if (depth < cDepth) input.acceptToken(dedent, -chars);\n else input.acceptToken(indent);\n }\n }\n});\n\nfunction IndentLevel(parent, depth) {\n this.parent = parent;\n // -1 means this is not an actual indent level but a set of brackets\n this.depth = depth;\n this.hash = (parent ? parent.hash + parent.hash << 8 : 0) + depth + (depth << 4);\n}\n\nconst topIndent = new IndentLevel(null, 0);\n\nfunction countIndent(space) {\n let depth = 0;\n for (let i = 0; i < space.length; i++)\n depth += space.charCodeAt(i) == tab ? 8 - (depth % 8) : 1;\n return depth\n}\n\nconst trackIndent = new ContextTracker({\n start: topIndent,\n reduce(context, term) {\n return context.depth < 0 && bracketed.has(term) ? context.parent : context\n },\n shift(context, term, stack, input) {\n if (term == indent) return new IndentLevel(context, countIndent(input.read(input.pos, stack.pos)))\n if (term == dedent) return context.parent\n if (term == ParenL || term == BracketL || term == BraceL) return new IndentLevel(context, -1)\n return context\n },\n hash(context) { return context.hash }\n});\n\nconst legacyPrint = new ExternalTokenizer(input => {\n for (let i = 0; i < 5; i++) {\n if (input.next != \"print\".charCodeAt(i)) return\n input.advance();\n }\n if (/\\w/.test(String.fromCharCode(input.next))) return\n for (let off = 0;; off++) {\n let next = input.peek(off);\n if (next == space || next == tab) continue\n if (next != parenOpen && next != dot && next != newline && next != carriageReturn && next != hash)\n input.acceptToken(printKeyword);\n return\n }\n});\n\nfunction formatString(quote, len, content, brace, end) {\n return new ExternalTokenizer(input => {\n let start = input.pos;\n for (;;) {\n if (input.next < 0) {\n break\n } else if (input.next == braceOpen) {\n if (input.peek(1) == braceOpen) {\n input.advance(2);\n } else {\n if (input.pos == start) {\n input.acceptToken(brace, 1);\n return\n }\n break\n }\n } else if (input.next == backslash) {\n input.advance();\n if (input.next >= 0) input.advance();\n } else if (input.next == quote && (len == 1 || input.peek(1) == quote && input.peek(2) == quote)) {\n if (input.pos == start) {\n input.acceptToken(end, len);\n return\n }\n break\n } else {\n input.advance();\n }\n }\n if (input.pos > start) input.acceptToken(content);\n })\n}\n\nconst formatString1 = formatString(singleQuote, 1, formatString1Content, formatString1Brace, formatString1End);\nconst formatString2 = formatString(doubleQuote, 1, formatString2Content, formatString2Brace, formatString2End);\nconst formatString1l = formatString(singleQuote, 3, formatString1lContent, formatString1lBrace, formatString1lEnd);\nconst formatString2l = formatString(doubleQuote, 3, formatString2lContent, formatString2lBrace, formatString2lEnd);\n\nconst pythonHighlighting = styleTags({\n \"async \\\"*\\\" \\\"**\\\" FormatConversion FormatSpec\": tags.modifier,\n \"for while if elif else try except finally return raise break continue with pass assert await yield match case\": tags.controlKeyword,\n \"in not and or is del\": tags.operatorKeyword,\n \"from def class global nonlocal lambda\": tags.definitionKeyword,\n import: tags.moduleKeyword,\n \"with as print\": tags.keyword,\n Boolean: tags.bool,\n None: tags.null,\n VariableName: tags.variableName,\n \"CallExpression/VariableName\": tags.function(tags.variableName),\n \"FunctionDefinition/VariableName\": tags.function(tags.definition(tags.variableName)),\n \"ClassDefinition/VariableName\": tags.definition(tags.className),\n PropertyName: tags.propertyName,\n \"CallExpression/MemberExpression/PropertyName\": tags.function(tags.propertyName),\n Comment: tags.lineComment,\n Number: tags.number,\n String: tags.string,\n FormatString: tags.special(tags.string),\n UpdateOp: tags.updateOperator,\n \"ArithOp!\": tags.arithmeticOperator,\n BitOp: tags.bitwiseOperator,\n CompareOp: tags.compareOperator,\n AssignOp: tags.definitionOperator,\n Ellipsis: tags.punctuation,\n At: tags.meta,\n \"( )\": tags.paren,\n \"[ ]\": tags.squareBracket,\n \"{ }\": tags.brace,\n \".\": tags.derefOperator,\n \", ;\": tags.separator\n});\n\n// This file was generated by lezer-generator. 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wordRegexp(words) {\n return new RegExp(\"^((\" + words.join(\")|(\") + \"))\\\\b\");\n}\n\nvar wordOperators = wordRegexp([\"and\", \"or\", \"not\", \"is\"]);\nvar commonKeywords = [\"as\", \"assert\", \"break\", \"class\", \"continue\",\n \"def\", \"del\", \"elif\", \"else\", \"except\", \"finally\",\n \"for\", \"from\", \"global\", \"if\", \"import\",\n \"lambda\", \"pass\", \"raise\", \"return\",\n \"try\", \"while\", \"with\", \"yield\", \"in\", \"False\", \"True\"];\nvar commonBuiltins = [\"abs\", \"all\", \"any\", \"bin\", \"bool\", \"bytearray\", \"callable\", \"chr\",\n \"classmethod\", \"compile\", \"complex\", \"delattr\", \"dict\", \"dir\", \"divmod\",\n \"enumerate\", \"eval\", \"filter\", \"float\", \"format\", \"frozenset\",\n \"getattr\", \"globals\", \"hasattr\", \"hash\", \"help\", \"hex\", \"id\",\n \"input\", \"int\", \"isinstance\", \"issubclass\", \"iter\", \"len\",\n \"list\", \"locals\", \"map\", \"max\", \"memoryview\", \"min\", \"next\",\n \"object\", \"oct\", \"open\", \"ord\", \"pow\", \"property\", \"range\",\n \"repr\", \"reversed\", \"round\", \"set\", \"setattr\", \"slice\",\n \"sorted\", \"staticmethod\", \"str\", \"sum\", \"super\", \"tuple\",\n \"type\", \"vars\", \"zip\", \"__import__\", \"NotImplemented\",\n \"Ellipsis\", \"__debug__\"];\n\nfunction top(state) {\n return state.scopes[state.scopes.length - 1];\n}\n\nexport function mkPython(parserConf) {\n var ERRORCLASS = \"error\";\n\n var delimiters = parserConf.delimiters || parserConf.singleDelimiters || /^[\\(\\)\\[\\]\\{\\}@,:`=;\\.\\\\]/;\n // (Backwards-compatibility with old, cumbersome config system)\n var operators = [parserConf.singleOperators, parserConf.doubleOperators, parserConf.doubleDelimiters, parserConf.tripleDelimiters,\n parserConf.operators || /^([-+*/%\\/&|^]=?|[<>=]+|\\/\\/=?|\\*\\*=?|!=|[~!@]|\\.\\.\\.)/]\n for (var i = 0; i < operators.length; i++) if (!operators[i]) operators.splice(i--, 1)\n\n var hangingIndent = parserConf.hangingIndent;\n\n var myKeywords = commonKeywords, myBuiltins = commonBuiltins;\n if (parserConf.extra_keywords != undefined)\n myKeywords = myKeywords.concat(parserConf.extra_keywords);\n\n if (parserConf.extra_builtins != undefined)\n myBuiltins = myBuiltins.concat(parserConf.extra_builtins);\n\n var py3 = !(parserConf.version && Number(parserConf.version) < 3)\n if (py3) {\n // since http://legacy.python.org/dev/peps/pep-0465/ @ is also an operator\n var identifiers = parserConf.identifiers|| /^[_A-Za-z\\u00A1-\\uFFFF][_A-Za-z0-9\\u00A1-\\uFFFF]*/;\n myKeywords = myKeywords.concat([\"nonlocal\", \"None\", \"aiter\", \"anext\", \"async\", \"await\", \"breakpoint\", \"match\", \"case\"]);\n myBuiltins = myBuiltins.concat([\"ascii\", \"bytes\", \"exec\", \"print\"]);\n var stringPrefixes = new RegExp(\"^(([rbuf]|(br)|(rb)|(fr)|(rf))?('{3}|\\\"{3}|['\\\"]))\", \"i\");\n } else {\n var identifiers = parserConf.identifiers|| /^[_A-Za-z][_A-Za-z0-9]*/;\n myKeywords = myKeywords.concat([\"exec\", \"print\"]);\n myBuiltins = myBuiltins.concat([\"apply\", \"basestring\", \"buffer\", \"cmp\", \"coerce\", \"execfile\",\n \"file\", \"intern\", \"long\", \"raw_input\", \"reduce\", \"reload\",\n \"unichr\", \"unicode\", \"xrange\", \"None\"]);\n var stringPrefixes = new RegExp(\"^(([rubf]|(ur)|(br))?('{3}|\\\"{3}|['\\\"]))\", \"i\");\n }\n var keywords = wordRegexp(myKeywords);\n var builtins = wordRegexp(myBuiltins);\n\n // tokenizers\n function tokenBase(stream, state) {\n var sol = stream.sol() && state.lastToken != \"\\\\\"\n if (sol) state.indent = stream.indentation()\n // Handle scope changes\n if (sol && top(state).type == \"py\") {\n var scopeOffset = top(state).offset;\n if (stream.eatSpace()) {\n var lineOffset = stream.indentation();\n if (lineOffset > scopeOffset)\n pushPyScope(stream, state);\n else if (lineOffset < scopeOffset && dedent(stream, state) && stream.peek() != \"#\")\n state.errorToken = true;\n return null;\n } else {\n var style = tokenBaseInner(stream, state);\n if (scopeOffset > 0 && dedent(stream, state))\n style += \" \" + ERRORCLASS;\n return style;\n }\n }\n return tokenBaseInner(stream, state);\n }\n\n function tokenBaseInner(stream, state, inFormat) {\n if (stream.eatSpace()) return null;\n\n // Handle Comments\n if (!inFormat && stream.match(/^#.*/)) return \"comment\";\n\n // Handle Number Literals\n if (stream.match(/^[0-9\\.]/, false)) {\n var floatLiteral = false;\n // Floats\n if (stream.match(/^[\\d_]*\\.\\d+(e[\\+\\-]?\\d+)?/i)) { floatLiteral = true; }\n if (stream.match(/^[\\d_]+\\.\\d*/)) { floatLiteral = true; }\n if (stream.match(/^\\.\\d+/)) { floatLiteral = true; }\n if (floatLiteral) {\n // Float literals may be \"imaginary\"\n stream.eat(/J/i);\n return \"number\";\n }\n // Integers\n var intLiteral = false;\n // Hex\n if (stream.match(/^0x[0-9a-f_]+/i)) intLiteral = true;\n // Binary\n if (stream.match(/^0b[01_]+/i)) intLiteral = true;\n // Octal\n if (stream.match(/^0o[0-7_]+/i)) intLiteral = true;\n // Decimal\n if (stream.match(/^[1-9][\\d_]*(e[\\+\\-]?[\\d_]+)?/)) {\n // Decimal literals may be \"imaginary\"\n stream.eat(/J/i);\n // TODO - Can you have imaginary longs?\n intLiteral = true;\n }\n // Zero by itself with no other piece of number.\n if (stream.match(/^0(?![\\dx])/i)) intLiteral = true;\n if (intLiteral) {\n // Integer literals may be \"long\"\n stream.eat(/L/i);\n return \"number\";\n }\n }\n\n // Handle Strings\n if (stream.match(stringPrefixes)) {\n var isFmtString = stream.current().toLowerCase().indexOf('f') !== -1;\n if (!isFmtString) {\n state.tokenize = tokenStringFactory(stream.current(), state.tokenize);\n return state.tokenize(stream, state);\n } else {\n state.tokenize = formatStringFactory(stream.current(), state.tokenize);\n return state.tokenize(stream, state);\n }\n }\n\n for (var i = 0; i < operators.length; i++)\n if (stream.match(operators[i])) return \"operator\"\n\n if (stream.match(delimiters)) return \"punctuation\";\n\n if (state.lastToken == \".\" && 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!escaped){\n var afterNext = stream.peek();\n //look if the character if the quote is like the B in '10100010'B\n if (afterNext){\n afterNext = afterNext.toLowerCase();\n if(afterNext == \"b\" || afterNext == \"h\" || afterNext == \"o\")\n stream.next();\n }\n end = true; break;\n }\n escaped = !escaped && next == \"\\\\\";\n }\n if (end || !(escaped || multiLineStrings))\n state.tokenize = null;\n return \"string\";\n };\n }\n\n function Context(indented, column, type, align, prev) {\n this.indented = indented;\n this.column = column;\n this.type = type;\n this.align = align;\n this.prev = prev;\n }\n function pushContext(state, col, type) {\n var indent = state.indented;\n if (state.context && state.context.type == \"statement\")\n indent = state.context.indented;\n return state.context = new Context(indent, col, type, null, state.context);\n }\n function popContext(state) {\n var t = state.context.type;\n if (t == \")\" || t == \"]\" || t == \"}\")\n state.indented = state.context.indented;\n return state.context = state.context.prev;\n }\n\n //Interface\n return {\n name: \"asn1\",\n startState: function() {\n return {\n tokenize: null,\n context: new Context(-2, 0, \"top\", false),\n indented: 0,\n startOfLine: true\n };\n },\n\n token: function(stream, state) {\n var ctx = state.context;\n if (stream.sol()) {\n if (ctx.align == null) ctx.align = false;\n state.indented = stream.indentation();\n state.startOfLine = true;\n }\n if (stream.eatSpace()) return null;\n curPunc = null;\n var style = (state.tokenize || tokenBase)(stream, state);\n if (style == \"comment\") return style;\n if (ctx.align == null) ctx.align = true;\n\n if ((curPunc == \";\" || curPunc == \":\" || curPunc == \",\")\n && ctx.type == \"statement\"){\n popContext(state);\n }\n else if (curPunc == \"{\") pushContext(state, stream.column(), \"}\");\n else if (curPunc == \"[\") pushContext(state, stream.column(), \"]\");\n else if (curPunc == \"(\") pushContext(state, 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{simpleMode} from \"./simple-mode.js\"\nexport const nsis = simpleMode({\n start:[\n // Numbers\n {regex: /(?:[+-]?)(?:0x[\\d,a-f]+)|(?:0o[0-7]+)|(?:0b[0,1]+)|(?:\\d+.?\\d*)/, token: \"number\"},\n\n // Strings\n { regex: /\"(?:[^\\\\\"]|\\\\.)*\"?/, token: \"string\" },\n { regex: /'(?:[^\\\\']|\\\\.)*'?/, token: \"string\" },\n { regex: /`(?:[^\\\\`]|\\\\.)*`?/, token: \"string\" },\n\n // Compile Time Commands\n {regex: /^\\s*(?:\\!(addincludedir|addplugindir|appendfile|assert|cd|define|delfile|echo|error|execute|finalize|getdllversion|gettlbversion|include|insertmacro|macro|macroend|makensis|packhdr|pragma|searchparse|searchreplace|system|tempfile|undef|uninstfinalize|verbose|warning))\\b/i, token: \"keyword\"},\n\n // Conditional Compilation\n {regex: /^\\s*(?:\\!(if(?:n?def)?|ifmacron?def|macro))\\b/i, token: \"keyword\", indent: true},\n {regex: /^\\s*(?:\\!(else|endif|macroend))\\b/i, token: \"keyword\", dedent: true},\n\n // Runtime Commands\n {regex: /^\\s*(?:Abort|AddBrandingImage|AddSize|AllowRootDirInstall|AllowSkipFiles|AutoCloseWindow|BGFont|BGGradient|BrandingText|BringToFront|Call|CallInstDLL|Caption|ChangeUI|CheckBitmap|ClearErrors|CompletedText|ComponentText|CopyFiles|CRCCheck|CreateDirectory|CreateFont|CreateShortCut|Delete|DeleteINISec|DeleteINIStr|DeleteRegKey|DeleteRegValue|DetailPrint|DetailsButtonText|DirText|DirVar|DirVerify|EnableWindow|EnumRegKey|EnumRegValue|Exch|Exec|ExecShell|ExecShellWait|ExecWait|ExpandEnvStrings|File|FileBufSize|FileClose|FileErrorText|FileOpen|FileRead|FileReadByte|FileReadUTF16LE|FileReadWord|FileWriteUTF16LE|FileSeek|FileWrite|FileWriteByte|FileWriteWord|FindClose|FindFirst|FindNext|FindWindow|FlushINI|GetCurInstType|GetCurrentAddress|GetDlgItem|GetDLLVersion|GetDLLVersionLocal|GetErrorLevel|GetFileTime|GetFileTimeLocal|GetFullPathName|GetFunctionAddress|GetInstDirError|GetKnownFolderPath|GetLabelAddress|GetTempFileName|GetWinVer|Goto|HideWindow|Icon|IfAbort|IfErrors|IfFileExists|IfRebootFlag|IfRtlLanguage|IfShellVarContextAll|IfSilent|InitPluginsDir|InstallButtonText|InstallColors|InstallDir|InstallDirRegKey|InstProgressFlags|InstType|InstTypeGetText|InstTypeSetText|Int64Cmp|Int64CmpU|Int64Fmt|IntCmp|IntCmpU|IntFmt|IntOp|IntPtrCmp|IntPtrCmpU|IntPtrOp|IsWindow|LangString|LicenseBkColor|LicenseData|LicenseForceSelection|LicenseLangString|LicenseText|LoadAndSetImage|LoadLanguageFile|LockWindow|LogSet|LogText|ManifestDPIAware|ManifestLongPathAware|ManifestMaxVersionTested|ManifestSupportedOS|MessageBox|MiscButtonText|Name|Nop|OutFile|Page|PageCallbacks|PEAddResource|PEDllCharacteristics|PERemoveResource|PESubsysVer|Pop|Push|Quit|ReadEnvStr|ReadINIStr|ReadRegDWORD|ReadRegStr|Reboot|RegDLL|Rename|RequestExecutionLevel|ReserveFile|Return|RMDir|SearchPath|SectionGetFlags|SectionGetInstTypes|SectionGetSize|SectionGetText|SectionIn|SectionSetFlags|SectionSetInstTypes|SectionSetSize|SectionSetText|SendMessage|SetAutoClose|SetBrandingImage|SetCompress|SetCompressor|SetCompressorDictSize|SetCtlColors|SetCurInstType|SetDatablockOptimize|SetDateSave|SetDetailsPrint|SetDetailsView|SetErrorLevel|SetErrors|SetFileAttributes|SetFont|SetOutPath|SetOverwrite|SetRebootFlag|SetRegView|SetShellVarContext|SetSilent|ShowInstDetails|ShowUninstDetails|ShowWindow|SilentInstall|SilentUnInstall|Sleep|SpaceTexts|StrCmp|StrCmpS|StrCpy|StrLen|SubCaption|Target|Unicode|UninstallButtonText|UninstallCaption|UninstallIcon|UninstallSubCaption|UninstallText|UninstPage|UnRegDLL|Var|VIAddVersionKey|VIFileVersion|VIProductVersion|WindowIcon|WriteINIStr|WriteRegBin|WriteRegDWORD|WriteRegExpandStr|WriteRegMultiStr|WriteRegNone|WriteRegStr|WriteUninstaller|XPStyle)\\b/i, token: \"keyword\"},\n {regex: /^\\s*(?:Function|PageEx|Section(?:Group)?)\\b/i, token: \"keyword\", indent: true},\n {regex: /^\\s*(?:(Function|PageEx|Section(?:Group)?)End)\\b/i, token: \"keyword\", dedent: true},\n\n // Command Options\n {regex: /\\b(?:ARCHIVE|FILE_ATTRIBUTE_ARCHIVE|FILE_ATTRIBUTE_HIDDEN|FILE_ATTRIBUTE_NORMAL|FILE_ATTRIBUTE_OFFLINE|FILE_ATTRIBUTE_READONLY|FILE_ATTRIBUTE_SYSTEM|FILE_ATTRIBUTE_TEMPORARY|HIDDEN|HKCC|HKCR(32|64)?|HKCU(32|64)?|HKDD|HKEY_CLASSES_ROOT|HKEY_CURRENT_CONFIG|HKEY_CURRENT_USER|HKEY_DYN_DATA|HKEY_LOCAL_MACHINE|HKEY_PERFORMANCE_DATA|HKEY_USERS|HKLM(32|64)?|HKPD|HKU|IDABORT|IDCANCEL|IDD_DIR|IDD_INST|IDD_INSTFILES|IDD_LICENSE|IDD_SELCOM|IDD_UNINST|IDD_VERIFY|IDIGNORE|IDNO|IDOK|IDRETRY|IDYES|MB_ABORTRETRYIGNORE|MB_DEFBUTTON1|MB_DEFBUTTON2|MB_DEFBUTTON3|MB_DEFBUTTON4|MB_ICONEXCLAMATION|MB_ICONINFORMATION|MB_ICONQUESTION|MB_ICONSTOP|MB_OK|MB_OKCANCEL|MB_RETRYCANCEL|MB_RIGHT|MB_RTLREADING|MB_SETFOREGROUND|MB_TOPMOST|MB_USERICON|MB_YESNO|MB_YESNOCANCEL|NORMAL|OFFLINE|READONLY|SHCTX|SHELL_CONTEXT|SW_HIDE|SW_SHOWDEFAULT|SW_SHOWMAXIMIZED|SW_SHOWMINIMIZED|SW_SHOWNORMAL|SYSTEM|TEMPORARY)\\b/i, token: \"atom\"},\n {regex: /\\b(?:admin|all|amd64-unicode|auto|both|bottom|bzip2|components|current|custom|directory|false|force|hide|highest|ifdiff|ifnewer|instfiles|lastused|leave|left|license|listonly|lzma|nevershow|none|normal|notset|off|on|right|show|silent|silentlog|textonly|top|true|try|un\\.components|un\\.custom|un\\.directory|un\\.instfiles|un\\.license|uninstConfirm|user|Win10|Win7|Win8|WinVista|x-86-(ansi|unicode)|zlib)\\b/i, token: \"builtin\"},\n\n // LogicLib.nsh\n {regex: /\\$\\{(?:And(?:If(?:Not)?|Unless)|Break|Case(?:2|3|4|5|Else)?|Continue|Default|Do(?:Until|While)?|Else(?:If(?:Not)?|Unless)?|End(?:If|Select|Switch)|Exit(?:Do|For|While)|For(?:Each)?|If(?:Cmd|Not(?:Then)?|Then)?|Loop(?:Until|While)?|Or(?:If(?:Not)?|Unless)|Select|Switch|Unless|While)\\}/i, token: \"variable-2\", indent: true},\n\n // FileFunc.nsh\n {regex: /\\$\\{(?:BannerTrimPath|DirState|DriveSpace|Get(BaseName|Drives|ExeName|ExePath|FileAttributes|FileExt|FileName|FileVersion|Options|OptionsS|Parameters|Parent|Root|Size|Time)|Locate|RefreshShellIcons)\\}/i, token: \"variable-2\", dedent: true},\n\n // Memento.nsh\n {regex: /\\$\\{(?:Memento(?:Section(?:Done|End|Restore|Save)?|UnselectedSection))\\}/i, token: \"variable-2\", dedent: true},\n\n // TextFunc.nsh\n {regex: /\\$\\{(?:Config(?:Read|ReadS|Write|WriteS)|File(?:Join|ReadFromEnd|Recode)|Line(?:Find|Read|Sum)|Text(?:Compare|CompareS)|TrimNewLines)\\}/i, token: \"variable-2\", dedent: true},\n\n // WinVer.nsh\n {regex: /\\$\\{(?:(?:At(?:Least|Most)|Is)(?:ServicePack|Win(?:7|8|10|95|98|200(?:0|3|8(?:R2)?)|ME|NT4|Vista|XP))|Is(?:NT|Server))\\}/i, token: \"variable\", dedent: true},\n\n // WordFunc.nsh\n {regex: /\\$\\{(?:StrFilterS?|Version(?:Compare|Convert)|Word(?:AddS?|Find(?:(?:2|3)X)?S?|InsertS?|ReplaceS?))\\}/i, token: \"keyword\", dedent: true},\n\n // x64.nsh\n {regex: /\\$\\{(?:RunningX64)\\}/i, token: \"variable\", dedent: true},\n {regex: /\\$\\{(?:Disable|Enable)X64FSRedirection\\}/i, token: \"keyword\", dedent: true},\n\n // Line Comment\n {regex: /(#|;).*/, token: \"comment\"},\n\n // Block Comment\n {regex: /\\/\\*/, token: \"comment\", next: \"comment\"},\n\n // Operator\n {regex: /[-+\\/*=<>!]+/, token: \"operator\"},\n\n // Variable\n {regex: /\\$\\w[\\w\\.]*/, token: \"variable\"},\n\n // Constant\n {regex: /\\${[\\!\\w\\.:-]+}/, token: \"variableName.constant\"},\n\n // Language String\n {regex: /\\$\\([\\!\\w\\.:-]+\\)/, token: \"atom\"}\n ],\n comment: [\n {regex: /.*?\\*\\//, token: \"comment\", next: \"start\"},\n {regex: /.*/, token: \"comment\"}\n ],\n languageData: {\n name: \"nsis\",\n indentOnInput: /^\\s*((Function|PageEx|Section|Section(Group)?)End|(\\!(endif|macroend))|\\$\\{(End(If|Unless|While)|Loop(Until)|Next)\\})$/i,\n commentTokens: {line: \"#\", block: {open: \"/*\", close: \"*/\"}}\n }\n});\n\n","export function simpleMode(states) {\n ensureState(states, \"start\");\n var states_ = {}, meta = states.languageData || {}, hasIndentation = false;\n for (var state in states) if (state != meta && states.hasOwnProperty(state)) {\n var list = states_[state] = [], orig = states[state];\n for (var i = 0; i < orig.length; i++) {\n var data = orig[i];\n list.push(new Rule(data, states));\n if (data.indent || data.dedent) hasIndentation = true;\n }\n }\n return {\n name: meta.name,\n startState: function() {\n return {state: \"start\", pending: null, indent: hasIndentation ? 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e=t.location.split(":");this._driveName=e[0],this._localPath=e[1]}else this._driveName="",this._localPath=t.location;await this.initRuntime(t),await this.initFilesystem(t),await this.initPackageManager(t),await this.initKernel(t),await this.initGlobals(t),null==(e=this._initializer)||e.resolve()}async initRuntime(t){let e,{pyodideUrl:i,indexUrl:a}=t;i.endsWith(".mjs")?e=(await __webpack_require__(265)(i)).loadPyodide:(importScripts(i),e=self.loadPyodide),this._pyodide=await e({indexURL:a})}async initPackageManager(t){if(!this._options)throw new Error("Uninitialized");let{pipliteWheelUrl:e,disablePyPIFallback:i,pipliteUrls:a}=this._options;await this._pyodide.loadPackage(["micropip"]),await this._pyodide.runPythonAsync(`\n import micropip\n await micropip.install('${e}', keep_going=True)\n import piplite.piplite\n piplite.piplite._PIPLITE_DISABLE_PYPI = ${i?"True":"False"}\n piplite.piplite._PIPLITE_URLS = ${JSON.stringify(a)}\n `)}async initKernel(t){await 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e={wait:this.formatResult(t)};postMessage({parentHeader:this.formatResult(this._kernel._parent_header).header,bundle:e,type:"clear_output"})},this._interpreter.display_pub.display_data_callback=(t,e,i)=>{let a={data:this.formatResult(t),metadata:this.formatResult(e),transient:this.formatResult(i)};postMessage({parentHeader:this.formatResult(this._kernel._parent_header).header,bundle:a,type:"display_data"})},this._interpreter.display_pub.update_display_data_callback=(t,e,i)=>{let a={data:this.formatResult(t),metadata:this.formatResult(e),transient:this.formatResult(i)};postMessage({parentHeader:this.formatResult(this._kernel._parent_header).header,bundle:a,type:"update_display_data"})},this._interpreter.displayhook.publish_execution_result=(t,e,i)=>{let a={execution_count:t,data:this.formatResult(e),metadata:this.formatResult(i)};postMessage({parentHeader:this.formatResult(this._kernel._parent_header).header,bundle:a,type:"execute_result"})},this._interpreter.input=this.input.bind(this),this._interpreter.getpass=this.getpass.bind(this);let a=await this._kernel.run(t.code),n=this.formatResult(a);return"error"===n.status&&((t,e,i)=>{let a={ename:t,evalue:e,traceback:i};postMessage({parentHeader:this.formatResult(this._kernel._parent_header).header,bundle:a,type:"execute_error"})})(n.ename,n.evalue,n.traceback),n}async complete(t,e){await this.setup(e);let i=this._kernel.complete(t.code,t.cursor_pos);return this.formatResult(i)}async inspect(t,e){await this.setup(e);let i=this._kernel.inspect(t.code,t.cursor_pos,t.detail_level);return this.formatResult(i)}async isComplete(t,e){await this.setup(e);let i=this._kernel.is_complete(t.code);return this.formatResult(i)}async commInfo(t,e){await this.setup(e);let 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rval(state,stream,\"number\");\n }\n\n // dot\n if (ch == \".\") {\n return rval(state,stream,\"dot\");\n }\n\n // quoted atom\n if (ch == '\\'') {\n if (!(state.in_atom = (!singleQuote(stream)))) {\n if (stream.match(/\\s*\\/\\s*[0-9]/,false)) {\n stream.match(/\\s*\\/\\s*[0-9]/,true);\n return rval(state,stream,\"fun\"); // 'f'/0 style fun\n }\n if (stream.match(/\\s*\\(/,false) || stream.match(/\\s*:/,false)) {\n return rval(state,stream,\"function\");\n }\n }\n return rval(state,stream,\"atom\");\n }\n\n // string\n if (ch == '\"') {\n state.in_string = (!doubleQuote(stream));\n return rval(state,stream,\"string\");\n }\n\n // variable\n if (/[A-Z_Ø-ÞÀ-Ö]/.test(ch)) {\n stream.eatWhile(anumRE);\n return rval(state,stream,\"variable\");\n }\n\n // atom/keyword/BIF/function\n if (/[a-z_ß-öø-ÿ]/.test(ch)) {\n stream.eatWhile(anumRE);\n\n if (stream.match(/\\s*\\/\\s*[0-9]/,false)) {\n stream.match(/\\s*\\/\\s*[0-9]/,true);\n return rval(state,stream,\"fun\"); // f/0 style fun\n }\n\n var w = stream.current();\n\n if (is_member(w,keywordWords)) {\n return rval(state,stream,\"keyword\");\n }else if (is_member(w,operatorAtomWords)) {\n return rval(state,stream,\"operator\");\n }else if (stream.match(/\\s*\\(/,false)) {\n // 'put' and 'erlang:put' are bifs, 'foo:put' is not\n if (is_member(w,bifWords) &&\n ((peekToken(state).token != \":\") ||\n (peekToken(state,2).token == \"erlang\"))) {\n return rval(state,stream,\"builtin\");\n }else if (is_member(w,guardWords)) {\n return rval(state,stream,\"guard\");\n }else{\n return rval(state,stream,\"function\");\n }\n }else if (lookahead(stream) == \":\") {\n if (w == \"erlang\") {\n return rval(state,stream,\"builtin\");\n } else {\n return rval(state,stream,\"function\");\n }\n }else if (is_member(w,[\"true\",\"false\"])) {\n return rval(state,stream,\"boolean\");\n }else{\n return rval(state,stream,\"atom\");\n }\n }\n\n // number\n var digitRE = /[0-9]/;\n var radixRE = /[0-9a-zA-Z]/; // 36#zZ style int\n if (digitRE.test(ch)) {\n stream.eatWhile(digitRE);\n if (stream.eat('#')) { // 36#aZ style integer\n if (!stream.eatWhile(radixRE)) {\n stream.backUp(1); //\"36#\" - syntax error\n }\n } else if (stream.eat('.')) { // float\n if (!stream.eatWhile(digitRE)) {\n stream.backUp(1); // \"3.\" - probably end of function\n } else {\n if (stream.eat(/[eE]/)) { // float with exponent\n if (stream.eat(/[-+]/)) {\n if (!stream.eatWhile(digitRE)) {\n stream.backUp(2); // \"2e-\" - syntax error\n }\n } else {\n if (!stream.eatWhile(digitRE)) {\n stream.backUp(1); // \"2e\" - syntax error\n }\n }\n }\n }\n }\n return rval(state,stream,\"number\"); // normal integer\n }\n\n // open parens\n if (nongreedy(stream,openParenRE,openParenWords)) {\n return rval(state,stream,\"open_paren\");\n }\n\n // close parens\n if (nongreedy(stream,closeParenRE,closeParenWords)) {\n return rval(state,stream,\"close_paren\");\n }\n\n // separators\n if (greedy(stream,separatorRE,separatorWords)) {\n return rval(state,stream,\"separator\");\n }\n\n // operators\n if (greedy(stream,operatorSymbolRE,operatorSymbolWords)) {\n return rval(state,stream,\"operator\");\n }\n\n return rval(state,stream,null);\n}\n\n/////////////////////////////////////////////////////////////////////////////\n// utilities\nfunction nongreedy(stream,re,words) {\n if (stream.current().length == 1 && re.test(stream.current())) {\n stream.backUp(1);\n while (re.test(stream.peek())) {\n stream.next();\n if (is_member(stream.current(),words)) {\n return true;\n }\n }\n stream.backUp(stream.current().length-1);\n }\n return false;\n}\n\nfunction greedy(stream,re,words) {\n if (stream.current().length == 1 && re.test(stream.current())) {\n while (re.test(stream.peek())) {\n stream.next();\n }\n while (0 < stream.current().length) {\n if (is_member(stream.current(),words)) {\n return true;\n }else{\n stream.backUp(1);\n }\n }\n stream.next();\n }\n return false;\n}\n\nfunction doubleQuote(stream) {\n return quote(stream, 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}else{\n return state.tokenStack[len-dep];\n }\n}\n\nfunction pushToken(state,token) {\n\n if (!(token.type == \"comment\" || token.type == \"whitespace\")) {\n state.tokenStack = maybe_drop_pre(state.tokenStack,token);\n state.tokenStack = maybe_drop_post(state.tokenStack);\n }\n}\n\nfunction maybe_drop_pre(s,token) {\n var last = s.length-1;\n\n if (0 < last && s[last].type === \"record\" && token.type === \"dot\") {\n s.pop();\n }else if (0 < last && s[last].type === \"group\") {\n s.pop();\n s.push(token);\n }else{\n s.push(token);\n }\n return s;\n}\n\nfunction maybe_drop_post(s) {\n if (!s.length) return s\n var last = s.length-1;\n\n if (s[last].type === \"dot\") {\n return [];\n }\n if (last > 1 && s[last].type === \"fun\" && s[last-1].token === \"fun\") {\n return s.slice(0,last-1);\n }\n switch (s[last].token) {\n case \"}\": return d(s,{g:[\"{\"]});\n case \"]\": return d(s,{i:[\"[\"]});\n case \")\": return d(s,{i:[\"(\"]});\n case \">>\": return d(s,{i:[\"<<\"]});\n case \"end\": return d(s,{i:[\"begin\",\"case\",\"fun\",\"if\",\"receive\",\"try\"]});\n case \",\": return d(s,{e:[\"begin\",\"try\",\"when\",\"->\",\n \",\",\"(\",\"[\",\"{\",\"<<\"]});\n case \"->\": return d(s,{r:[\"when\"],\n m:[\"try\",\"if\",\"case\",\"receive\"]});\n case \";\": return d(s,{E:[\"case\",\"fun\",\"if\",\"receive\",\"try\",\"when\"]});\n case \"catch\":return d(s,{e:[\"try\"]});\n case \"of\": return d(s,{e:[\"case\"]});\n case \"after\":return d(s,{e:[\"receive\",\"try\"]});\n default: return s;\n }\n}\n\nfunction d(stack,tt) {\n // stack is a stack of Token objects.\n // tt is an object; {type:tokens}\n // type is a char, tokens is a list of token strings.\n // The function returns (possibly truncated) stack.\n // It will descend the stack, looking for a Token such that Token.token\n // is a member of tokens. 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[] : stack);\n}\n\n/////////////////////////////////////////////////////////////////////////////\n// indenter\n\nfunction indenter(state, textAfter, cx) {\n var t;\n var wordAfter = wordafter(textAfter);\n var currT = peekToken(state,1);\n var prevT = peekToken(state,2);\n\n if (state.in_string || state.in_atom) {\n return null;\n }else if (!prevT) {\n return 0;\n }else if (currT.token == \"when\") {\n return currT.column + cx.unit;\n }else if (wordAfter === \"when\" && prevT.type === \"function\") {\n return prevT.indent+cx.unit;\n }else if (wordAfter === \"(\" && currT.token === \"fun\") {\n return currT.column+3;\n }else if (wordAfter === \"catch\" && (t = getToken(state,[\"try\"]))) {\n return t.column;\n }else if (is_member(wordAfter,[\"end\",\"after\",\"of\"])) {\n t = getToken(state,[\"begin\",\"case\",\"fun\",\"if\",\"receive\",\"try\"]);\n return t ? t.column : null;\n }else if (is_member(wordAfter,closeParenWords)) {\n t = getToken(state,openParenWords);\n return t ? t.column 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mkJavaScript(parserConfig) {\n var statementIndent = parserConfig.statementIndent;\n var jsonldMode = parserConfig.jsonld;\n var jsonMode = parserConfig.json || jsonldMode;\n var isTS = parserConfig.typescript;\n var wordRE = parserConfig.wordCharacters || /[\\w$\\xa1-\\uffff]/;\n\n // Tokenizer\n\n var keywords = function(){\n function kw(type) {return {type: type, style: \"keyword\"};}\n var A = kw(\"keyword a\"), B = kw(\"keyword b\"), C = kw(\"keyword c\"), D = kw(\"keyword d\");\n var operator = kw(\"operator\"), atom = {type: \"atom\", style: \"atom\"};\n\n return {\n \"if\": kw(\"if\"), \"while\": A, \"with\": A, \"else\": B, \"do\": B, \"try\": B, \"finally\": B,\n \"return\": D, \"break\": D, \"continue\": D, \"new\": kw(\"new\"), \"delete\": C, \"void\": C, \"throw\": C,\n \"debugger\": kw(\"debugger\"), \"var\": kw(\"var\"), \"const\": kw(\"var\"), \"let\": kw(\"var\"),\n \"function\": kw(\"function\"), \"catch\": kw(\"catch\"),\n \"for\": kw(\"for\"), \"switch\": 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up tons of objects.\n var type, content;\n function ret(tp, style, cont) {\n type = tp; content = cont;\n return style;\n }\n function tokenBase(stream, state) {\n var ch = stream.next();\n if (ch == '\"' || ch == \"'\") {\n state.tokenize = tokenString(ch);\n return state.tokenize(stream, state);\n } else if (ch == \".\" && stream.match(/^\\d[\\d_]*(?:[eE][+\\-]?[\\d_]+)?/)) {\n return ret(\"number\", \"number\");\n } else if (ch == \".\" && stream.match(\"..\")) {\n return ret(\"spread\", \"meta\");\n } else if (/[\\[\\]{}\\(\\),;\\:\\.]/.test(ch)) {\n return ret(ch);\n } else if (ch == \"=\" && stream.eat(\">\")) {\n return ret(\"=>\", \"operator\");\n } else if (ch == \"0\" && stream.match(/^(?:x[\\dA-Fa-f_]+|o[0-7_]+|b[01_]+)n?/)) {\n return ret(\"number\", \"number\");\n } else if (/\\d/.test(ch)) {\n stream.match(/^[\\d_]*(?:n|(?:\\.[\\d_]*)?(?:[eE][+\\-]?[\\d_]+)?)?/);\n return ret(\"number\", \"number\");\n } else if (ch == \"/\") {\n if (stream.eat(\"*\")) {\n state.tokenize = tokenComment;\n return tokenComment(stream, state);\n } else if (stream.eat(\"/\")) {\n stream.skipToEnd();\n return ret(\"comment\", \"comment\");\n } else if (expressionAllowed(stream, state, 1)) {\n readRegexp(stream);\n stream.match(/^\\b(([gimyus])(?![gimyus]*\\2))+\\b/);\n return ret(\"regexp\", \"string.special\");\n } else {\n stream.eat(\"=\");\n return ret(\"operator\", \"operator\", stream.current());\n }\n } else if (ch == \"`\") {\n state.tokenize = tokenQuasi;\n return tokenQuasi(stream, state);\n } else if (ch == \"#\" && stream.peek() == \"!\") {\n stream.skipToEnd();\n return ret(\"meta\", \"meta\");\n } else if (ch == \"#\" && stream.eatWhile(wordRE)) {\n return ret(\"variable\", \"property\")\n } else if (ch == \"<\" && stream.match(\"!--\") ||\n (ch == \"-\" && stream.match(\"->\") && !/\\S/.test(stream.string.slice(0, stream.start)))) {\n stream.skipToEnd()\n return ret(\"comment\", \"comment\")\n } else if (isOperatorChar.test(ch)) {\n if (ch != \">\" || !state.lexical || state.lexical.type != \">\") {\n if (stream.eat(\"=\")) {\n if (ch == \"!\" || ch == \"=\") stream.eat(\"=\")\n } else if (/[<>*+\\-|&?]/.test(ch)) {\n stream.eat(ch)\n if (ch == \">\") stream.eat(ch)\n }\n }\n if (ch == \"?\" && stream.eat(\".\")) return ret(\".\")\n return ret(\"operator\", \"operator\", stream.current());\n } else if (wordRE.test(ch)) {\n stream.eatWhile(wordRE);\n var word = stream.current()\n if (state.lastType != \".\") {\n if (keywords.propertyIsEnumerable(word)) {\n var kw = keywords[word]\n return ret(kw.type, kw.style, word)\n }\n if (word == \"async\" && stream.match(/^(\\s|\\/\\*([^*]|\\*(?!\\/))*?\\*\\/)*[\\[\\(\\w]/, false))\n return ret(\"async\", \"keyword\", word)\n }\n return ret(\"variable\", \"variable\", word)\n }\n }\n\n function tokenString(quote) {\n return function(stream, state) {\n var escaped = false, next;\n if (jsonldMode && stream.peek() == \"@\" && stream.match(isJsonldKeyword)){\n state.tokenize = tokenBase;\n return ret(\"jsonld-keyword\", \"meta\");\n }\n while ((next = stream.next()) != null) {\n if (next == quote && !escaped) break;\n escaped = !escaped && next == \"\\\\\";\n }\n if (!escaped) state.tokenize = tokenBase;\n return ret(\"string\", \"string\");\n };\n }\n\n function tokenComment(stream, state) {\n var maybeEnd = false, ch;\n while (ch = stream.next()) {\n if (ch == \"/\" && maybeEnd) {\n state.tokenize = tokenBase;\n break;\n }\n maybeEnd = (ch == \"*\");\n }\n return ret(\"comment\", \"comment\");\n }\n\n function tokenQuasi(stream, state) {\n var escaped = false, next;\n while ((next = stream.next()) != null) {\n if (!escaped && (next == \"`\" || next == \"$\" && stream.eat(\"{\"))) {\n state.tokenize = tokenBase;\n break;\n }\n escaped = !escaped && next == \"\\\\\";\n }\n return ret(\"quasi\", \"string.special\", stream.current());\n }\n\n var brackets = \"([{}])\";\n // This is a crude lookahead trick to try and notice that we're\n // parsing the argument patterns for a fat-arrow function before we\n // actually hit the arrow token. It only works if the arrow is on\n // the same line as the arguments and there's no strange noise\n // (comments) in between. Fallback is to only notice when we hit the\n // arrow, and not declare the arguments as locals for the arrow\n // body.\n function findFatArrow(stream, state) {\n if (state.fatArrowAt) state.fatArrowAt = null;\n var arrow = stream.string.indexOf(\"=>\", stream.start);\n if (arrow < 0) return;\n\n if (isTS) { // Try to skip TypeScript return type declarations after the arguments\n var m = /:\\s*(?:\\w+(?:<[^>]*>|\\[\\])?|\\{[^}]*\\})\\s*$/.exec(stream.string.slice(stream.start, arrow))\n if (m) arrow = m.index\n }\n\n var depth = 0, sawSomething = false;\n for (var pos = arrow - 1; pos >= 0; --pos) {\n var ch = stream.string.charAt(pos);\n var bracket = brackets.indexOf(ch);\n if (bracket >= 0 && bracket < 3) {\n if (!depth) { ++pos; break; }\n if (--depth == 0) { if (ch == \"(\") sawSomething = true; break; }\n } else if (bracket >= 3 && bracket < 6) {\n ++depth;\n } else if (wordRE.test(ch)) {\n sawSomething = true;\n } else if (/[\"'\\/`]/.test(ch)) {\n for (;; --pos) {\n if (pos == 0) return\n var next = stream.string.charAt(pos - 1)\n if (next == ch && stream.string.charAt(pos - 2) != \"\\\\\") { pos--; break }\n }\n } else if (sawSomething && !depth) {\n ++pos;\n break;\n }\n }\n if (sawSomething && !depth) state.fatArrowAt = pos;\n }\n\n // Parser\n\n var atomicTypes = {\"atom\": true, \"number\": true, \"variable\": true, \"string\": true,\n \"regexp\": true, \"this\": true, \"import\": true, \"jsonld-keyword\": true};\n\n function JSLexical(indented, column, type, align, prev, info) {\n this.indented = indented;\n this.column = column;\n this.type = type;\n this.prev = prev;\n this.info = info;\n if (align != null) this.align = align;\n }\n\n function inScope(state, varname) {\n for (var v = state.localVars; v; v = v.next)\n if (v.name == varname) return true;\n for (var cx = state.context; cx; cx = cx.prev) {\n for (var v = cx.vars; v; v = v.next)\n if (v.name == varname) return true;\n }\n }\n\n function parseJS(state, style, type, content, stream) {\n var cc = state.cc;\n // Communicate our context to the combinators.\n // (Less wasteful than consing up a hundred closures on every call.)\n cx.state = state; cx.stream = stream; cx.marked = null; cx.cc = cc; cx.style = style;\n\n if (!state.lexical.hasOwnProperty(\"align\"))\n state.lexical.align = true;\n\n while(true) {\n var combinator = cc.length ? cc.pop() : jsonMode ? expression : statement;\n if (combinator(type, content)) {\n while(cc.length && cc[cc.length - 1].lex)\n cc.pop()();\n if (cx.marked) return cx.marked;\n if (type == \"variable\" && inScope(state, content)) return \"variableName.local\";\n return style;\n }\n }\n }\n\n // Combinator utils\n\n var cx = {state: null, column: null, marked: null, cc: null};\n function pass() {\n for (var i = arguments.length - 1; i >= 0; i--) cx.cc.push(arguments[i]);\n }\n function cont() {\n pass.apply(null, arguments);\n return true;\n }\n function inList(name, list) {\n for (var v = list; v; v = v.next) if (v.name == name) return true\n return false;\n }\n function register(varname) {\n var state = cx.state;\n cx.marked = \"def\";\n if (state.context) {\n if (state.lexical.info == \"var\" && state.context && state.context.block) {\n // FIXME function decls are also not block scoped\n var newContext = registerVarScoped(varname, state.context)\n if (newContext != null) {\n state.context = newContext\n return\n }\n } else if (!inList(varname, state.localVars)) {\n state.localVars = new Var(varname, state.localVars)\n return\n }\n }\n // Fall through means this is global\n if (parserConfig.globalVars && !inList(varname, state.globalVars))\n state.globalVars = new Var(varname, state.globalVars)\n }\n function registerVarScoped(varname, context) {\n if (!context) {\n return null\n } else if (context.block) {\n var inner = registerVarScoped(varname, context.prev)\n if (!inner) return null\n if (inner == context.prev) return context\n return new Context(inner, context.vars, true)\n } else if (inList(varname, context.vars)) {\n return context\n } else {\n return new Context(context.prev, new Var(varname, context.vars), false)\n }\n }\n\n function isModifier(name) {\n return name == \"public\" || name == \"private\" || name == \"protected\" || name == \"abstract\" || name == \"readonly\"\n }\n\n // Combinators\n\n function Context(prev, vars, block) { this.prev = prev; this.vars = vars; this.block = block }\n function Var(name, next) { this.name = name; this.next = next }\n\n var defaultVars = new Var(\"this\", new Var(\"arguments\", null))\n function pushcontext() {\n cx.state.context = new Context(cx.state.context, cx.state.localVars, false)\n cx.state.localVars = defaultVars\n }\n function pushblockcontext() {\n cx.state.context = new Context(cx.state.context, cx.state.localVars, true)\n cx.state.localVars = null\n }\n pushcontext.lex = pushblockcontext.lex = true\n function popcontext() {\n cx.state.localVars = cx.state.context.vars\n cx.state.context = cx.state.context.prev\n }\n popcontext.lex = true\n function pushlex(type, info) {\n var result = function() {\n var state = cx.state, indent = state.indented;\n if (state.lexical.type == \"stat\") indent = state.lexical.indented;\n else for (var outer = state.lexical; outer && outer.type == \")\" && outer.align; outer = outer.prev)\n indent = outer.indented;\n state.lexical = new JSLexical(indent, cx.stream.column(), type, null, state.lexical, info);\n };\n result.lex = true;\n return result;\n }\n function poplex() {\n var state = cx.state;\n if (state.lexical.prev) {\n if (state.lexical.type == \")\")\n state.indented = state.lexical.indented;\n state.lexical = state.lexical.prev;\n }\n }\n poplex.lex = true;\n\n function expect(wanted) {\n function exp(type) {\n if (type == wanted) return cont();\n else if (wanted == \";\" || type == \"}\" || type == \")\" || type == \"]\") return pass();\n else return cont(exp);\n };\n return exp;\n }\n\n function statement(type, value) {\n if (type == \"var\") return cont(pushlex(\"vardef\", value), vardef, expect(\";\"), poplex);\n if (type == \"keyword a\") return cont(pushlex(\"form\"), parenExpr, statement, poplex);\n if (type == \"keyword b\") return cont(pushlex(\"form\"), statement, poplex);\n if (type == \"keyword d\") return cx.stream.match(/^\\s*$/, false) ? cont() : cont(pushlex(\"stat\"), maybeexpression, expect(\";\"), poplex);\n if (type == \"debugger\") return cont(expect(\";\"));\n if (type == \"{\") return cont(pushlex(\"}\"), pushblockcontext, block, poplex, popcontext);\n if (type == \";\") return cont();\n if (type == \"if\") {\n if (cx.state.lexical.info == \"else\" && cx.state.cc[cx.state.cc.length - 1] == poplex)\n cx.state.cc.pop()();\n return cont(pushlex(\"form\"), parenExpr, statement, poplex, maybeelse);\n }\n if (type == \"function\") return cont(functiondef);\n if (type == \"for\") return cont(pushlex(\"form\"), pushblockcontext, forspec, statement, popcontext, poplex);\n if (type == \"class\" || (isTS && value == \"interface\")) {\n cx.marked = \"keyword\"\n return cont(pushlex(\"form\", type == \"class\" ? type : value), className, poplex)\n }\n if (type == \"variable\") {\n if (isTS && value == \"declare\") {\n cx.marked = \"keyword\"\n return cont(statement)\n } else if (isTS && (value == \"module\" || value == \"enum\" || value == \"type\") && cx.stream.match(/^\\s*\\w/, false)) {\n cx.marked = \"keyword\"\n if (value == \"enum\") return cont(enumdef);\n else if (value == \"type\") return cont(typename, expect(\"operator\"), typeexpr, expect(\";\"));\n else return cont(pushlex(\"form\"), pattern, expect(\"{\"), pushlex(\"}\"), block, poplex, poplex)\n } else if (isTS && value == \"namespace\") {\n cx.marked = \"keyword\"\n return cont(pushlex(\"form\"), expression, statement, poplex)\n } else if (isTS && value == \"abstract\") {\n cx.marked = \"keyword\"\n return cont(statement)\n } else {\n return cont(pushlex(\"stat\"), maybelabel);\n }\n }\n if (type == \"switch\") return cont(pushlex(\"form\"), parenExpr, expect(\"{\"), pushlex(\"}\", \"switch\"), pushblockcontext,\n block, poplex, poplex, popcontext);\n if (type == \"case\") return cont(expression, expect(\":\"));\n if (type == \"default\") return cont(expect(\":\"));\n if (type == \"catch\") return cont(pushlex(\"form\"), pushcontext, maybeCatchBinding, statement, poplex, popcontext);\n if (type == \"export\") return cont(pushlex(\"stat\"), afterExport, poplex);\n if (type == \"import\") return cont(pushlex(\"stat\"), afterImport, poplex);\n if (type == \"async\") return cont(statement)\n if (value == \"@\") return cont(expression, statement)\n return pass(pushlex(\"stat\"), expression, expect(\";\"), poplex);\n }\n function maybeCatchBinding(type) {\n if (type == \"(\") return cont(funarg, expect(\")\"))\n }\n function expression(type, value) {\n return expressionInner(type, value, false);\n }\n function expressionNoComma(type, value) {\n return expressionInner(type, value, true);\n }\n function parenExpr(type) {\n if (type != \"(\") return pass()\n return cont(pushlex(\")\"), maybeexpression, expect(\")\"), poplex)\n }\n function expressionInner(type, value, noComma) {\n if (cx.state.fatArrowAt == cx.stream.start) {\n var body = noComma ? arrowBodyNoComma : arrowBody;\n if (type == \"(\") return cont(pushcontext, pushlex(\")\"), commasep(funarg, \")\"), poplex, expect(\"=>\"), body, popcontext);\n else if (type == \"variable\") return pass(pushcontext, pattern, expect(\"=>\"), body, popcontext);\n }\n\n var maybeop = noComma ? maybeoperatorNoComma : maybeoperatorComma;\n if (atomicTypes.hasOwnProperty(type)) return cont(maybeop);\n if (type == \"function\") return cont(functiondef, maybeop);\n if (type == \"class\" || (isTS && value == \"interface\")) { cx.marked = \"keyword\"; return cont(pushlex(\"form\"), classExpression, poplex); }\n if (type == \"keyword c\" || type == \"async\") return cont(noComma ? expressionNoComma : expression);\n if (type == \"(\") return cont(pushlex(\")\"), maybeexpression, expect(\")\"), poplex, maybeop);\n if (type == \"operator\" || type == \"spread\") return cont(noComma ? expressionNoComma : expression);\n if (type == \"[\") return cont(pushlex(\"]\"), arrayLiteral, poplex, maybeop);\n if (type == \"{\") return contCommasep(objprop, \"}\", null, maybeop);\n if (type == \"quasi\") return pass(quasi, maybeop);\n if (type == \"new\") return cont(maybeTarget(noComma));\n return cont();\n }\n function maybeexpression(type) {\n if (type.match(/[;\\}\\)\\],]/)) return pass();\n return pass(expression);\n }\n\n function maybeoperatorComma(type, value) {\n if (type == \",\") return cont(maybeexpression);\n return maybeoperatorNoComma(type, value, false);\n }\n function maybeoperatorNoComma(type, value, noComma) {\n var me = noComma == false ? maybeoperatorComma : maybeoperatorNoComma;\n var expr = noComma == false ? expression : expressionNoComma;\n if (type == \"=>\") return cont(pushcontext, noComma ? arrowBodyNoComma : arrowBody, popcontext);\n if (type == \"operator\") {\n if (/\\+\\+|--/.test(value) || isTS && value == \"!\") return cont(me);\n if (isTS && value == \"<\" && cx.stream.match(/^([^<>]|<[^<>]*>)*>\\s*\\(/, false))\n return cont(pushlex(\">\"), commasep(typeexpr, \">\"), poplex, me);\n if (value == \"?\") return cont(expression, expect(\":\"), expr);\n return cont(expr);\n }\n if (type == \"quasi\") { return pass(quasi, me); }\n if (type == \";\") return;\n if (type == \"(\") return contCommasep(expressionNoComma, \")\", \"call\", me);\n if (type == \".\") return cont(property, me);\n if (type == \"[\") return cont(pushlex(\"]\"), maybeexpression, expect(\"]\"), poplex, me);\n if (isTS && value == \"as\") { cx.marked = \"keyword\"; return cont(typeexpr, me) }\n if (type == \"regexp\") {\n cx.state.lastType = cx.marked = \"operator\"\n cx.stream.backUp(cx.stream.pos - cx.stream.start - 1)\n return cont(expr)\n }\n }\n function quasi(type, value) {\n if (type != \"quasi\") return pass();\n if (value.slice(value.length - 2) != \"${\") return cont(quasi);\n return cont(maybeexpression, continueQuasi);\n }\n function continueQuasi(type) {\n if (type == \"}\") {\n cx.marked = \"string.special\";\n cx.state.tokenize = tokenQuasi;\n return cont(quasi);\n }\n }\n function arrowBody(type) {\n findFatArrow(cx.stream, cx.state);\n return pass(type == \"{\" ? statement : expression);\n }\n function arrowBodyNoComma(type) {\n findFatArrow(cx.stream, cx.state);\n return pass(type == \"{\" ? statement : expressionNoComma);\n }\n function maybeTarget(noComma) {\n return function(type) {\n if (type == \".\") return cont(noComma ? targetNoComma : target);\n else if (type == \"variable\" && isTS) return cont(maybeTypeArgs, noComma ? maybeoperatorNoComma : maybeoperatorComma)\n else return pass(noComma ? expressionNoComma : expression);\n };\n }\n function target(_, value) {\n if (value == \"target\") { cx.marked = \"keyword\"; return cont(maybeoperatorComma); }\n }\n function targetNoComma(_, value) {\n if (value == \"target\") { cx.marked = \"keyword\"; return cont(maybeoperatorNoComma); }\n }\n function maybelabel(type) {\n if (type == \":\") return cont(poplex, statement);\n return pass(maybeoperatorComma, expect(\";\"), poplex);\n }\n function property(type) {\n if (type == \"variable\") {cx.marked = \"property\"; return cont();}\n }\n function objprop(type, value) {\n if (type == \"async\") {\n cx.marked = \"property\";\n return cont(objprop);\n } else if (type == \"variable\" || cx.style == \"keyword\") {\n cx.marked = \"property\";\n if (value == \"get\" || value == \"set\") return cont(getterSetter);\n var m // Work around fat-arrow-detection complication for detecting typescript typed arrow params\n if (isTS && cx.state.fatArrowAt == cx.stream.start && (m = cx.stream.match(/^\\s*:\\s*/, false)))\n cx.state.fatArrowAt = cx.stream.pos + m[0].length\n return cont(afterprop);\n } else if (type == \"number\" || type == \"string\") {\n cx.marked = jsonldMode ? \"property\" : (cx.style + \" property\");\n return cont(afterprop);\n } else if (type == \"jsonld-keyword\") {\n return cont(afterprop);\n } else if (isTS && isModifier(value)) {\n cx.marked = \"keyword\"\n return cont(objprop)\n } else if (type == \"[\") {\n return cont(expression, maybetype, expect(\"]\"), afterprop);\n } else if (type == \"spread\") {\n return cont(expressionNoComma, afterprop);\n } else if (value == \"*\") {\n cx.marked = \"keyword\";\n return cont(objprop);\n } else if (type == \":\") {\n return pass(afterprop)\n }\n }\n function getterSetter(type) {\n if (type != \"variable\") return pass(afterprop);\n cx.marked = \"property\";\n return cont(functiondef);\n }\n function afterprop(type) {\n if (type == \":\") return cont(expressionNoComma);\n if (type == \"(\") return pass(functiondef);\n }\n function commasep(what, end, sep) {\n function proceed(type, value) {\n if (sep ? sep.indexOf(type) > -1 : type == \",\") {\n var lex = cx.state.lexical;\n if (lex.info == \"call\") lex.pos = (lex.pos || 0) + 1;\n return cont(function(type, value) {\n if (type == end || value == end) return pass()\n return pass(what)\n }, proceed);\n }\n if (type == end || value == end) return cont();\n if (sep && sep.indexOf(\";\") > -1) return pass(what)\n return cont(expect(end));\n }\n return function(type, value) {\n if (type == end || value == end) return cont();\n return pass(what, proceed);\n };\n }\n function contCommasep(what, end, info) {\n for (var i = 3; i < arguments.length; i++)\n cx.cc.push(arguments[i]);\n return cont(pushlex(end, info), commasep(what, end), poplex);\n }\n function block(type) {\n if (type == \"}\") return cont();\n return pass(statement, block);\n }\n function maybetype(type, value) {\n if (isTS) {\n if (type == \":\") return cont(typeexpr);\n if (value == \"?\") return cont(maybetype);\n }\n }\n function maybetypeOrIn(type, value) {\n if (isTS && (type == \":\" || value == \"in\")) return cont(typeexpr)\n }\n function mayberettype(type) {\n if (isTS && type == \":\") {\n if (cx.stream.match(/^\\s*\\w+\\s+is\\b/, false)) return cont(expression, isKW, typeexpr)\n else return cont(typeexpr)\n }\n }\n function isKW(_, value) {\n if (value == \"is\") {\n cx.marked = \"keyword\"\n return cont()\n }\n }\n function typeexpr(type, value) {\n if (value == \"keyof\" || value == \"typeof\" || value == \"infer\" || value == \"readonly\") {\n cx.marked = \"keyword\"\n return cont(value == \"typeof\" ? expressionNoComma : typeexpr)\n }\n if (type == \"variable\" || value == \"void\") {\n cx.marked = \"type\"\n return cont(afterType)\n }\n if (value == \"|\" || value == \"&\") return cont(typeexpr)\n if (type == \"string\" || type == \"number\" || type == \"atom\") return cont(afterType);\n if (type == \"[\") return cont(pushlex(\"]\"), commasep(typeexpr, \"]\", \",\"), poplex, afterType)\n if (type == \"{\") return cont(pushlex(\"}\"), typeprops, poplex, afterType)\n if (type == \"(\") return cont(commasep(typearg, \")\"), maybeReturnType, afterType)\n if (type == \"<\") return cont(commasep(typeexpr, \">\"), typeexpr)\n if (type == \"quasi\") return pass(quasiType, afterType)\n }\n function maybeReturnType(type) {\n if (type == \"=>\") return cont(typeexpr)\n }\n function typeprops(type) {\n if (type.match(/[\\}\\)\\]]/)) return cont()\n if (type == \",\" || type == \";\") return cont(typeprops)\n return pass(typeprop, typeprops)\n }\n function typeprop(type, value) {\n if (type == \"variable\" || cx.style == \"keyword\") {\n cx.marked = \"property\"\n return cont(typeprop)\n } else if (value == \"?\" || type == \"number\" || type == \"string\") {\n return cont(typeprop)\n } else if (type == \":\") {\n return cont(typeexpr)\n } else if (type == \"[\") {\n return cont(expect(\"variable\"), maybetypeOrIn, expect(\"]\"), typeprop)\n } else if (type == \"(\") {\n return pass(functiondecl, typeprop)\n } else if (!type.match(/[;\\}\\)\\],]/)) {\n return cont()\n }\n }\n function quasiType(type, value) {\n if (type != \"quasi\") return pass();\n if (value.slice(value.length - 2) != \"${\") return cont(quasiType);\n return cont(typeexpr, continueQuasiType);\n }\n function continueQuasiType(type) {\n if (type == \"}\") {\n cx.marked = \"string.special\";\n cx.state.tokenize = tokenQuasi;\n return cont(quasiType);\n }\n }\n function typearg(type, value) {\n if (type == \"variable\" && cx.stream.match(/^\\s*[?:]/, false) || value == \"?\") return cont(typearg)\n if (type == \":\") return cont(typeexpr)\n if (type == \"spread\") return cont(typearg)\n return pass(typeexpr)\n }\n function afterType(type, value) {\n if (value == \"<\") return cont(pushlex(\">\"), commasep(typeexpr, \">\"), poplex, afterType)\n if (value == \"|\" || type == \".\" || value == \"&\") return cont(typeexpr)\n if (type == \"[\") return cont(typeexpr, expect(\"]\"), afterType)\n if (value == \"extends\" || value == \"implements\") { cx.marked = \"keyword\"; return cont(typeexpr) }\n if (value == \"?\") return cont(typeexpr, expect(\":\"), typeexpr)\n }\n function maybeTypeArgs(_, value) {\n if (value == \"<\") return cont(pushlex(\">\"), commasep(typeexpr, \">\"), poplex, afterType)\n }\n function typeparam() {\n return pass(typeexpr, maybeTypeDefault)\n }\n function maybeTypeDefault(_, value) {\n if (value == \"=\") return cont(typeexpr)\n }\n function vardef(_, value) {\n if (value == \"enum\") {cx.marked = \"keyword\"; return cont(enumdef)}\n return pass(pattern, maybetype, maybeAssign, vardefCont);\n }\n function pattern(type, value) {\n if (isTS && isModifier(value)) { cx.marked = \"keyword\"; return cont(pattern) }\n if (type == \"variable\") { register(value); return cont(); }\n if (type == \"spread\") return cont(pattern);\n if (type == \"[\") return contCommasep(eltpattern, \"]\");\n if (type == \"{\") return contCommasep(proppattern, \"}\");\n }\n function proppattern(type, value) {\n if (type == \"variable\" && !cx.stream.match(/^\\s*:/, false)) {\n 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CHARACTER CHARACTERS CLASS CLOCK-UNITS \" +\n \"CLOSE COBOL CODE CODE-SET COL \" +\n \"COLLATING COLUMN COMMA COMMIT COMMITMENT \" +\n \"COMMON COMMUNICATION COMP COMP-0 COMP-1 \" +\n \"COMP-2 COMP-3 COMP-4 COMP-5 COMP-6 \" +\n \"COMP-7 COMP-8 COMP-9 COMPUTATIONAL COMPUTATIONAL-0 \" +\n \"COMPUTATIONAL-1 COMPUTATIONAL-2 COMPUTATIONAL-3 COMPUTATIONAL-4 COMPUTATIONAL-5 \" +\n \"COMPUTATIONAL-6 COMPUTATIONAL-7 COMPUTATIONAL-8 COMPUTATIONAL-9 COMPUTE \" +\n \"CONFIGURATION CONNECT CONSOLE CONTAINED CONTAINS \" +\n \"CONTENT CONTINUE CONTROL CONTROL-AREA CONTROLS \" +\n \"CONVERTING COPY CORR CORRESPONDING COUNT \" +\n \"CRT CRT-UNDER CURRENCY CURRENT CURSOR \" +\n \"DATA DATE DATE-COMPILED DATE-WRITTEN DAY \" +\n \"DAY-OF-WEEK DB DB-ACCESS-CONTROL-KEY DB-DATA-NAME DB-EXCEPTION \" +\n \"DB-FORMAT-NAME DB-RECORD-NAME DB-SET-NAME DB-STATUS DBCS \" +\n \"DBCS-EDITED DE DEBUG-CONTENTS DEBUG-ITEM DEBUG-LINE \" +\n \"DEBUG-NAME DEBUG-SUB-1 DEBUG-SUB-2 DEBUG-SUB-3 DEBUGGING \" +\n \"DECIMAL-POINT DECLARATIVES DEFAULT DELETE DELIMITED \" +\n \"DELIMITER DEPENDING DESCENDING DESCRIBED DESTINATION \" +\n \"DETAIL DISABLE DISCONNECT DISPLAY DISPLAY-1 \" +\n \"DISPLAY-2 DISPLAY-3 DISPLAY-4 DISPLAY-5 DISPLAY-6 \" +\n \"DISPLAY-7 DISPLAY-8 DISPLAY-9 DIVIDE DIVISION \" +\n \"DOWN DROP DUPLICATE DUPLICATES DYNAMIC \" +\n \"EBCDIC EGI EJECT ELSE EMI \" +\n \"EMPTY EMPTY-CHECK ENABLE END END. 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lazy namespace object"],"sourcesContent":["import { KernelMessage } from '@jupyterlab/services';\nimport { Signal } from '@lumino/signaling';\n/**\n * A base kernel class handling basic kernel messaging.\n */\nexport class BaseKernel {\n /**\n * Construct a new BaseKernel.\n *\n * @param options The instantiation options for a BaseKernel.\n */\n constructor(options) {\n this._history = [];\n this._executionCount = 0;\n this._isDisposed = false;\n this._disposed = new Signal(this);\n this._parentHeader = undefined;\n this._parent = undefined;\n const { id, name, location, sendMessage } = options;\n this._id = id;\n this._name = name;\n this._location = location;\n this._sendMessage = sendMessage;\n }\n /**\n * A promise that is fulfilled when the kernel is ready.\n */\n get ready() {\n return Promise.resolve();\n }\n /**\n * Return whether the kernel is disposed.\n */\n get isDisposed() {\n return this._isDisposed;\n }\n /**\n * A signal emitted when the kernel is disposed.\n */\n get disposed() {\n return this._disposed;\n }\n /**\n * Get the kernel id\n */\n get id() {\n return this._id;\n }\n /**\n * Get the name of the kernel\n */\n get name() {\n return this._name;\n }\n /**\n * The location in the virtual filesystem from which the kernel was started.\n */\n get location() {\n return this._location;\n }\n /**\n * The current execution count\n */\n get executionCount() {\n return this._executionCount;\n }\n /**\n * Get the last parent header\n */\n get parentHeader() {\n return this._parentHeader;\n }\n /**\n * Get the last parent message (mimic ipykernel's get_parent)\n */\n get parent() {\n return this._parent;\n }\n /**\n * Dispose the kernel.\n */\n dispose() {\n if (this.isDisposed) {\n return;\n }\n this._isDisposed = true;\n this._disposed.emit(void 0);\n }\n /**\n * Handle an incoming message from the client.\n *\n * @param msg The message to handle\n */\n async handleMessage(msg) {\n this._busy(msg);\n this._parent = msg;\n const msgType = msg.header.msg_type;\n switch (msgType) {\n case 'kernel_info_request':\n await this._kernelInfo(msg);\n break;\n case 'execute_request':\n await this._execute(msg);\n break;\n case 'input_reply':\n this.inputReply(msg.content);\n break;\n case 'inspect_request':\n await this._inspect(msg);\n break;\n case 'is_complete_request':\n await this._isCompleteRequest(msg);\n break;\n case 'complete_request':\n await this._complete(msg);\n break;\n case 'history_request':\n await this._historyRequest(msg);\n break;\n case 'comm_open':\n await this.commOpen(msg);\n break;\n case 'comm_msg':\n await this.commMsg(msg);\n break;\n case 'comm_close':\n await this.commClose(msg);\n break;\n default:\n break;\n }\n this._idle(msg);\n }\n /**\n * Stream an event from the kernel\n *\n * @param parentHeader The parent header.\n * @param content The stream content.\n */\n stream(content, parentHeader = undefined) {\n var _a;\n const parentHeaderValue = typeof parentHeader !== 'undefined' ? parentHeader : this._parentHeader;\n const message = KernelMessage.createMessage({\n channel: 'iopub',\n msgType: 'stream',\n // TODO: better handle this\n session: (_a = parentHeaderValue === null || parentHeaderValue === void 0 ? void 0 : parentHeaderValue.session) !== null && _a !== void 0 ? _a : '',\n parentHeader: parentHeaderValue,\n content,\n });\n this._sendMessage(message);\n }\n /**\n * Send a `display_data` message to the client.\n *\n * @param parentHeader The parent header.\n * @param content The display_data content.\n */\n displayData(content, parentHeader = undefined) {\n var _a, _b;\n // Make sure metadata is always set\n const parentHeaderValue = typeof parentHeader !== 'undefined' ? parentHeader : this._parentHeader;\n content.metadata = (_a = content.metadata) !== null && _a !== void 0 ? _a : {};\n const message = KernelMessage.createMessage({\n channel: 'iopub',\n msgType: 'display_data',\n // TODO: better handle this\n session: (_b = parentHeaderValue === null || parentHeaderValue === void 0 ? void 0 : parentHeaderValue.session) !== null && _b !== void 0 ? _b : '',\n parentHeader: parentHeaderValue,\n content,\n });\n this._sendMessage(message);\n }\n /**\n * Send a `input_request` message to the client.\n *\n * @param parentHeader The parent header.\n * @param content The input_request content.\n */\n inputRequest(content, parentHeader = undefined) {\n var _a;\n const parentHeaderValue = typeof parentHeader !== 'undefined' ? parentHeader : this._parentHeader;\n const message = KernelMessage.createMessage({\n channel: 'stdin',\n msgType: 'input_request',\n // TODO: better handle this\n session: (_a = parentHeaderValue === null || parentHeaderValue === void 0 ? void 0 : parentHeaderValue.session) !== null && _a !== void 0 ? _a : '',\n parentHeader: parentHeaderValue,\n content,\n });\n this._sendMessage(message);\n }\n /**\n * Send an `execute_result` message.\n *\n * @param parentHeader The parent header.\n * @param content The execute result content.\n */\n publishExecuteResult(content, parentHeader = undefined) {\n var _a;\n const parentHeaderValue = typeof parentHeader !== 'undefined' ? parentHeader : this._parentHeader;\n const message = KernelMessage.createMessage({\n channel: 'iopub',\n msgType: 'execute_result',\n // TODO: better handle this\n session: (_a = parentHeaderValue === null || parentHeaderValue === void 0 ? void 0 : parentHeaderValue.session) !== null && _a !== void 0 ? _a : '',\n parentHeader: parentHeaderValue,\n content,\n });\n this._sendMessage(message);\n }\n /**\n * Send an `error` message to the client.\n *\n * @param parentHeader The parent header.\n * @param content The error content.\n */\n publishExecuteError(content, parentHeader = undefined) {\n var _a;\n const parentHeaderValue = typeof parentHeader !== 'undefined' ? parentHeader : this._parentHeader;\n const message = KernelMessage.createMessage({\n channel: 'iopub',\n msgType: 'error',\n // TODO: better handle this\n session: (_a = parentHeaderValue === null || parentHeaderValue === void 0 ? void 0 : parentHeaderValue.session) !== null && _a !== void 0 ? _a : '',\n parentHeader: parentHeaderValue,\n content,\n });\n this._sendMessage(message);\n }\n /**\n * Send a `update_display_data` message to the client.\n *\n * @param parentHeader The parent header.\n * @param content The update_display_data content.\n */\n updateDisplayData(content, parentHeader = undefined) {\n var _a;\n const parentHeaderValue = typeof parentHeader !== 'undefined' ? parentHeader : this._parentHeader;\n const message = KernelMessage.createMessage({\n channel: 'iopub',\n msgType: 'update_display_data',\n // TODO: better handle this\n session: (_a = parentHeaderValue === null || parentHeaderValue === void 0 ? void 0 : parentHeaderValue.session) !== null && _a !== void 0 ? _a : '',\n parentHeader: parentHeaderValue,\n content,\n });\n this._sendMessage(message);\n }\n /**\n * Send a `clear_output` message to the client.\n *\n * @param parentHeader The parent header.\n * @param content The clear_output content.\n */\n clearOutput(content, parentHeader = undefined) {\n var _a;\n const parentHeaderValue = typeof parentHeader !== 'undefined' ? parentHeader : this._parentHeader;\n const message = KernelMessage.createMessage({\n channel: 'iopub',\n msgType: 'clear_output',\n // TODO: better handle this\n session: (_a = parentHeaderValue === null || parentHeaderValue === void 0 ? void 0 : parentHeaderValue.session) !== null && _a !== void 0 ? _a : '',\n parentHeader: parentHeaderValue,\n content,\n });\n this._sendMessage(message);\n }\n /**\n * Send a `comm` message to the client.\n *\n * @param .\n */\n handleComm(type, content, metadata, buffers, parentHeader = undefined) {\n var _a;\n const parentHeaderValue = typeof parentHeader !== 'undefined' ? parentHeader : this._parentHeader;\n const message = KernelMessage.createMessage({\n channel: 'iopub',\n msgType: type,\n // TODO: better handle this\n session: (_a = parentHeaderValue === null || parentHeaderValue === void 0 ? void 0 : parentHeaderValue.session) !== null && _a !== void 0 ? _a : '',\n parentHeader: parentHeaderValue,\n content,\n metadata,\n buffers,\n });\n this._sendMessage(message);\n }\n /**\n * Send an 'idle' status message.\n *\n * @param parent The parent message\n */\n _idle(parent) {\n const message = KernelMessage.createMessage({\n msgType: 'status',\n session: parent.header.session,\n parentHeader: parent.header,\n channel: 'iopub',\n content: {\n execution_state: 'idle',\n },\n });\n this._sendMessage(message);\n }\n /**\n * Send a 'busy' status message.\n *\n * @param parent The parent message.\n */\n _busy(parent) {\n const message = KernelMessage.createMessage({\n msgType: 'status',\n session: parent.header.session,\n parentHeader: parent.header,\n channel: 'iopub',\n content: {\n execution_state: 'busy',\n },\n });\n this._sendMessage(message);\n }\n /**\n * Handle a kernel_info_request message\n *\n * @param parent The parent message.\n */\n async _kernelInfo(parent) {\n const content = await this.kernelInfoRequest();\n const message = KernelMessage.createMessage({\n msgType: 'kernel_info_reply',\n channel: 'shell',\n session: parent.header.session,\n parentHeader: parent.header,\n content,\n });\n this._sendMessage(message);\n }\n /**\n * Handle a `history_request` message\n *\n * @param msg The parent message.\n */\n async _historyRequest(msg) {\n const historyMsg = msg;\n const message = KernelMessage.createMessage({\n msgType: 'history_reply',\n channel: 'shell',\n parentHeader: historyMsg.header,\n session: msg.header.session,\n content: {\n status: 'ok',\n history: this._history,\n },\n });\n this._sendMessage(message);\n }\n /**\n * Send an `execute_input` message.\n *\n * @param msg The parent message.\n */\n _executeInput(msg) {\n const parent = msg;\n const code = parent.content.code;\n const message = KernelMessage.createMessage({\n msgType: 'execute_input',\n parentHeader: parent.header,\n channel: 'iopub',\n session: msg.header.session,\n content: {\n code,\n execution_count: this._executionCount,\n },\n });\n this._sendMessage(message);\n }\n /**\n * Handle an execute_request message.\n *\n * @param msg The parent message.\n */\n async _execute(msg) {\n const executeMsg = msg;\n const content = executeMsg.content;\n if (content.store_history) {\n this._executionCount++;\n }\n // TODO: handle differently\n this._parentHeader = executeMsg.header;\n this._executeInput(executeMsg);\n if (content.store_history) {\n this._history.push([0, 0, content.code]);\n }\n const reply = await this.executeRequest(executeMsg.content);\n const message = KernelMessage.createMessage({\n msgType: 'execute_reply',\n channel: 'shell',\n parentHeader: executeMsg.header,\n session: msg.header.session,\n content: reply,\n });\n this._sendMessage(message);\n }\n /**\n * Handle an complete_request message\n *\n * @param msg The parent message.\n */\n async _complete(msg) {\n const completeMsg = msg;\n const content = await this.completeRequest(completeMsg.content);\n const message = KernelMessage.createMessage({\n msgType: 'complete_reply',\n parentHeader: completeMsg.header,\n channel: 'shell',\n session: msg.header.session,\n content,\n });\n this._sendMessage(message);\n }\n /**\n * Handle an inspect_request message\n *\n * @param msg The parent message.\n */\n async _inspect(msg) {\n const inspectMsg = msg;\n const content = await this.inspectRequest(inspectMsg.content);\n const message = KernelMessage.createMessage({\n msgType: 'inspect_reply',\n parentHeader: inspectMsg.header,\n channel: 'shell',\n session: msg.header.session,\n content,\n });\n this._sendMessage(message);\n }\n /**\n * Handle an is_complete_request message\n *\n * @param msg The parent message.\n */\n async _isCompleteRequest(msg) {\n const isCompleteMsg = msg;\n const content = await this.isCompleteRequest(isCompleteMsg.content);\n const message = KernelMessage.createMessage({\n msgType: 'is_complete_reply',\n parentHeader: isCompleteMsg.header,\n channel: 'shell',\n session: msg.header.session,\n content,\n });\n this._sendMessage(message);\n }\n}\n//# sourceMappingURL=kernel.js.map","/**\n * @license\n * Copyright 2019 Google LLC\n * SPDX-License-Identifier: Apache-2.0\n */\nconst proxyMarker = Symbol(\"Comlink.proxy\");\nconst createEndpoint = Symbol(\"Comlink.endpoint\");\nconst releaseProxy = Symbol(\"Comlink.releaseProxy\");\nconst finalizer = Symbol(\"Comlink.finalizer\");\nconst throwMarker = Symbol(\"Comlink.thrown\");\nconst isObject = (val) => (typeof val === \"object\" && val !== null) || typeof val === \"function\";\n/**\n * Internal transfer handle to handle objects marked to proxy.\n */\nconst proxyTransferHandler = {\n canHandle: (val) => isObject(val) && val[proxyMarker],\n serialize(obj) {\n const { port1, port2 } = new MessageChannel();\n expose(obj, port1);\n return [port2, [port2]];\n },\n deserialize(port) {\n port.start();\n return wrap(port);\n },\n};\n/**\n * Internal transfer handler to handle thrown exceptions.\n */\nconst throwTransferHandler = {\n canHandle: (value) => isObject(value) && throwMarker in value,\n serialize({ value }) {\n let serialized;\n if (value instanceof Error) {\n serialized = {\n isError: true,\n value: {\n message: value.message,\n name: value.name,\n stack: value.stack,\n },\n };\n }\n else {\n serialized = { isError: false, value };\n }\n return [serialized, []];\n },\n deserialize(serialized) {\n if (serialized.isError) {\n throw Object.assign(new Error(serialized.value.message), serialized.value);\n }\n throw serialized.value;\n },\n};\n/**\n * Allows customizing the serialization of certain values.\n */\nconst transferHandlers = new Map([\n [\"proxy\", proxyTransferHandler],\n [\"throw\", throwTransferHandler],\n]);\nfunction isAllowedOrigin(allowedOrigins, origin) {\n for (const allowedOrigin of allowedOrigins) {\n if (origin === allowedOrigin || allowedOrigin === \"*\") {\n return true;\n }\n if (allowedOrigin instanceof RegExp && allowedOrigin.test(origin)) {\n return true;\n }\n }\n return false;\n}\nfunction expose(obj, ep = globalThis, allowedOrigins = [\"*\"]) {\n ep.addEventListener(\"message\", function callback(ev) {\n if (!ev || !ev.data) {\n return;\n }\n if (!isAllowedOrigin(allowedOrigins, ev.origin)) {\n console.warn(`Invalid origin '${ev.origin}' for comlink proxy`);\n return;\n }\n const { id, type, path } = Object.assign({ path: [] }, ev.data);\n const argumentList = (ev.data.argumentList || []).map(fromWireValue);\n let returnValue;\n try {\n const parent = path.slice(0, -1).reduce((obj, prop) => obj[prop], obj);\n const rawValue = path.reduce((obj, prop) => obj[prop], obj);\n switch (type) {\n case \"GET\" /* MessageType.GET */:\n {\n returnValue = rawValue;\n }\n break;\n case \"SET\" /* MessageType.SET */:\n {\n parent[path.slice(-1)[0]] = fromWireValue(ev.data.value);\n returnValue = true;\n }\n break;\n case \"APPLY\" /* MessageType.APPLY */:\n {\n returnValue = rawValue.apply(parent, argumentList);\n }\n break;\n case \"CONSTRUCT\" /* MessageType.CONSTRUCT */:\n {\n const value = new rawValue(...argumentList);\n returnValue = proxy(value);\n }\n break;\n case \"ENDPOINT\" /* MessageType.ENDPOINT */:\n {\n const { port1, port2 } = new MessageChannel();\n expose(obj, port2);\n returnValue = transfer(port1, [port1]);\n }\n break;\n case \"RELEASE\" /* MessageType.RELEASE */:\n {\n returnValue = undefined;\n }\n break;\n default:\n return;\n }\n }\n catch (value) {\n returnValue = { value, [throwMarker]: 0 };\n }\n Promise.resolve(returnValue)\n .catch((value) => {\n return { value, [throwMarker]: 0 };\n })\n .then((returnValue) => {\n const [wireValue, transferables] = toWireValue(returnValue);\n ep.postMessage(Object.assign(Object.assign({}, wireValue), { id }), transferables);\n if (type === \"RELEASE\" /* MessageType.RELEASE */) {\n // detach and deactive after sending release response above.\n ep.removeEventListener(\"message\", callback);\n closeEndPoint(ep);\n if (finalizer in obj && typeof obj[finalizer] === \"function\") {\n obj[finalizer]();\n }\n }\n })\n .catch((error) => {\n // Send Serialization Error To Caller\n const [wireValue, transferables] = toWireValue({\n value: new TypeError(\"Unserializable return value\"),\n [throwMarker]: 0,\n });\n ep.postMessage(Object.assign(Object.assign({}, wireValue), { id }), transferables);\n });\n });\n if (ep.start) {\n ep.start();\n }\n}\nfunction isMessagePort(endpoint) {\n return endpoint.constructor.name === \"MessagePort\";\n}\nfunction closeEndPoint(endpoint) {\n if (isMessagePort(endpoint))\n endpoint.close();\n}\nfunction wrap(ep, target) {\n return createProxy(ep, [], target);\n}\nfunction throwIfProxyReleased(isReleased) {\n if (isReleased) {\n throw new Error(\"Proxy has been released and is not useable\");\n }\n}\nfunction releaseEndpoint(ep) {\n return requestResponseMessage(ep, {\n type: \"RELEASE\" /* MessageType.RELEASE */,\n }).then(() => {\n closeEndPoint(ep);\n });\n}\nconst proxyCounter = new WeakMap();\nconst proxyFinalizers = \"FinalizationRegistry\" in globalThis &&\n new FinalizationRegistry((ep) => {\n const newCount = (proxyCounter.get(ep) || 0) - 1;\n proxyCounter.set(ep, newCount);\n if (newCount === 0) {\n releaseEndpoint(ep);\n }\n });\nfunction registerProxy(proxy, ep) {\n const newCount = (proxyCounter.get(ep) || 0) + 1;\n proxyCounter.set(ep, newCount);\n if (proxyFinalizers) {\n proxyFinalizers.register(proxy, ep, proxy);\n }\n}\nfunction unregisterProxy(proxy) {\n if (proxyFinalizers) {\n proxyFinalizers.unregister(proxy);\n }\n}\nfunction createProxy(ep, path = [], target = function () { }) {\n let isProxyReleased = false;\n const proxy = new Proxy(target, {\n get(_target, prop) {\n throwIfProxyReleased(isProxyReleased);\n if (prop === releaseProxy) {\n return () => {\n unregisterProxy(proxy);\n releaseEndpoint(ep);\n isProxyReleased = true;\n };\n }\n if (prop === \"then\") {\n if (path.length === 0) {\n return { then: () => proxy };\n }\n const r = requestResponseMessage(ep, {\n type: \"GET\" /* MessageType.GET */,\n path: path.map((p) => p.toString()),\n }).then(fromWireValue);\n return r.then.bind(r);\n }\n return createProxy(ep, [...path, prop]);\n },\n set(_target, prop, rawValue) {\n throwIfProxyReleased(isProxyReleased);\n // FIXME: ES6 Proxy Handler `set` methods are supposed to return a\n // boolean. To show good will, we return true asynchronously ¯\\_(ツ)_/¯\n const [value, transferables] = toWireValue(rawValue);\n return requestResponseMessage(ep, {\n type: \"SET\" /* MessageType.SET */,\n path: [...path, prop].map((p) => p.toString()),\n value,\n }, transferables).then(fromWireValue);\n },\n apply(_target, _thisArg, rawArgumentList) {\n throwIfProxyReleased(isProxyReleased);\n const last = path[path.length - 1];\n if (last === createEndpoint) {\n return requestResponseMessage(ep, {\n type: \"ENDPOINT\" /* MessageType.ENDPOINT */,\n }).then(fromWireValue);\n }\n // We just pretend that `bind()` didn’t happen.\n if (last === \"bind\") {\n return createProxy(ep, path.slice(0, -1));\n }\n const [argumentList, transferables] = processArguments(rawArgumentList);\n return requestResponseMessage(ep, {\n type: \"APPLY\" /* MessageType.APPLY */,\n path: path.map((p) => p.toString()),\n argumentList,\n }, transferables).then(fromWireValue);\n },\n construct(_target, rawArgumentList) {\n throwIfProxyReleased(isProxyReleased);\n const [argumentList, transferables] = processArguments(rawArgumentList);\n return requestResponseMessage(ep, {\n type: \"CONSTRUCT\" /* MessageType.CONSTRUCT */,\n path: path.map((p) => p.toString()),\n argumentList,\n }, transferables).then(fromWireValue);\n },\n });\n registerProxy(proxy, ep);\n return proxy;\n}\nfunction myFlat(arr) {\n return Array.prototype.concat.apply([], arr);\n}\nfunction processArguments(argumentList) {\n const processed = argumentList.map(toWireValue);\n return [processed.map((v) => v[0]), myFlat(processed.map((v) => v[1]))];\n}\nconst transferCache = new WeakMap();\nfunction transfer(obj, transfers) {\n transferCache.set(obj, transfers);\n return obj;\n}\nfunction proxy(obj) {\n return Object.assign(obj, { [proxyMarker]: true });\n}\nfunction windowEndpoint(w, context = globalThis, targetOrigin = \"*\") {\n return {\n postMessage: (msg, transferables) => w.postMessage(msg, targetOrigin, transferables),\n addEventListener: context.addEventListener.bind(context),\n removeEventListener: context.removeEventListener.bind(context),\n };\n}\nfunction toWireValue(value) {\n for (const [name, handler] of transferHandlers) {\n if (handler.canHandle(value)) {\n const [serializedValue, transferables] = handler.serialize(value);\n return [\n {\n type: \"HANDLER\" /* WireValueType.HANDLER */,\n name,\n value: serializedValue,\n },\n transferables,\n ];\n }\n }\n return [\n {\n type: \"RAW\" /* WireValueType.RAW */,\n value,\n },\n transferCache.get(value) || [],\n ];\n}\nfunction fromWireValue(value) {\n switch (value.type) {\n case \"HANDLER\" /* WireValueType.HANDLER */:\n return transferHandlers.get(value.name).deserialize(value.value);\n case \"RAW\" /* WireValueType.RAW */:\n return value.value;\n }\n}\nfunction requestResponseMessage(ep, msg, transfers) {\n return new Promise((resolve) => {\n const id = generateUUID();\n ep.addEventListener(\"message\", function l(ev) {\n if (!ev.data || !ev.data.id || ev.data.id !== id) {\n return;\n }\n ep.removeEventListener(\"message\", l);\n resolve(ev.data);\n });\n if (ep.start) {\n ep.start();\n }\n ep.postMessage(Object.assign({ id }, msg), transfers);\n });\n}\nfunction generateUUID() {\n return new Array(4)\n .fill(0)\n .map(() => Math.floor(Math.random() * Number.MAX_SAFE_INTEGER).toString(16))\n .join(\"-\");\n}\n\nexport { createEndpoint, expose, finalizer, proxy, proxyMarker, releaseProxy, transfer, transferHandlers, windowEndpoint, wrap };\n//# sourceMappingURL=comlink.mjs.map\n","import { PromiseDelegate } from '@lumino/coreutils';\nimport { PageConfig } from '@jupyterlab/coreutils';\nimport { BaseKernel } from '@jupyterlite/kernel';\nimport { wrap } from 'comlink';\nimport { allJSONUrl, pipliteWheelUrl } from './_pypi';\n/**\n * A kernel that executes Python code with Pyodide.\n */\nexport class PyodideKernel extends BaseKernel {\n /**\n * Instantiate a new PyodideKernel\n *\n * @param options The instantiation options for a new PyodideKernel\n */\n constructor(options) {\n super(options);\n this._ready = new PromiseDelegate();\n this._worker = this.initWorker(options);\n this._worker.onmessage = (e) => this._processWorkerMessage(e.data);\n this._remoteKernel = wrap(this._worker);\n this.initRemote(options);\n }\n /**\n * Load the worker.\n *\n * ### Note\n *\n * Subclasses must implement this typographically almost _exactly_ for\n * webpack to find it.\n */\n initWorker(options) {\n return new Worker(new URL('./comlink.worker.js', import.meta.url), {\n type: 'module',\n });\n }\n async initRemote(options) {\n const remoteOptions = this.initRemoteOptions(options);\n await this._remoteKernel.initialize(remoteOptions);\n this._ready.resolve();\n }\n initRemoteOptions(options) {\n const { pyodideUrl } = options;\n const indexUrl = pyodideUrl.slice(0, pyodideUrl.lastIndexOf('/') + 1);\n const baseUrl = PageConfig.getBaseUrl();\n const pipliteUrls = [...(options.pipliteUrls || []), allJSONUrl.default];\n const disablePyPIFallback = !!options.disablePyPIFallback;\n return {\n baseUrl,\n pyodideUrl,\n indexUrl,\n pipliteWheelUrl: options.pipliteWheelUrl || pipliteWheelUrl.default,\n pipliteUrls,\n disablePyPIFallback,\n location: this.location,\n mountDrive: options.mountDrive,\n };\n }\n /**\n * Dispose the kernel.\n */\n dispose() {\n if (this.isDisposed) {\n return;\n }\n this._worker.terminate();\n this._worker = null;\n super.dispose();\n }\n /**\n * A promise that is fulfilled when the kernel is ready.\n */\n get ready() {\n return this._ready.promise;\n }\n /**\n * Process a message coming from the pyodide web worker.\n *\n * @param msg The worker message to process.\n */\n _processWorkerMessage(msg) {\n var _a, _b, _c, _d, _e, _f, _g;\n if (!msg.type) {\n return;\n }\n switch (msg.type) {\n case 'stream': {\n const bundle = (_a = msg.bundle) !== null && _a !== void 0 ? _a : { name: 'stdout', text: '' };\n this.stream(bundle, msg.parentHeader);\n break;\n }\n case 'input_request': {\n const bundle = (_b = msg.content) !== null && _b !== void 0 ? _b : { prompt: '', password: false };\n this.inputRequest(bundle, msg.parentHeader);\n break;\n }\n case 'display_data': {\n const bundle = (_c = msg.bundle) !== null && _c !== void 0 ? _c : { data: {}, metadata: {}, transient: {} };\n this.displayData(bundle, msg.parentHeader);\n break;\n }\n case 'update_display_data': {\n const bundle = (_d = msg.bundle) !== null && _d !== void 0 ? _d : { data: {}, metadata: {}, transient: {} };\n this.updateDisplayData(bundle, msg.parentHeader);\n break;\n }\n case 'clear_output': {\n const bundle = (_e = msg.bundle) !== null && _e !== void 0 ? _e : { wait: false };\n this.clearOutput(bundle, msg.parentHeader);\n break;\n }\n case 'execute_result': {\n const bundle = (_f = msg.bundle) !== null && _f !== void 0 ? _f : {\n execution_count: 0,\n data: {},\n metadata: {},\n };\n this.publishExecuteResult(bundle, msg.parentHeader);\n break;\n }\n case 'execute_error': {\n const bundle = (_g = msg.bundle) !== null && _g !== void 0 ? _g : { ename: '', evalue: '', traceback: [] };\n this.publishExecuteError(bundle, msg.parentHeader);\n break;\n }\n case 'comm_msg':\n case 'comm_open':\n case 'comm_close': {\n this.handleComm(msg.type, msg.content, msg.metadata, msg.buffers, msg.parentHeader);\n break;\n }\n }\n }\n /**\n * Handle a kernel_info_request message\n */\n async kernelInfoRequest() {\n const content = {\n implementation: 'pyodide',\n implementation_version: '0.1.0',\n language_info: {\n codemirror_mode: {\n name: 'python',\n version: 3,\n },\n file_extension: '.py',\n mimetype: 'text/x-python',\n name: 'python',\n nbconvert_exporter: 'python',\n pygments_lexer: 'ipython3',\n version: '3.8',\n },\n protocol_version: '5.3',\n status: 'ok',\n banner: 'A WebAssembly-powered Python kernel backed by Pyodide',\n help_links: [\n {\n text: 'Python (WASM) Kernel',\n url: 'https://pyodide.org',\n },\n ],\n };\n return content;\n }\n /**\n * Handle an `execute_request` message\n *\n * @param msg The parent message.\n */\n async executeRequest(content) {\n await this.ready;\n const result = await this._remoteKernel.execute(content, this.parent);\n result.execution_count = this.executionCount;\n return result;\n }\n /**\n * Handle an complete_request message\n *\n * @param msg The parent message.\n */\n async completeRequest(content) {\n return await this._remoteKernel.complete(content, this.parent);\n }\n /**\n * Handle an `inspect_request` message.\n *\n * @param content - The content of the request.\n *\n * @returns A promise that resolves with the response message.\n */\n async inspectRequest(content) {\n return await this._remoteKernel.inspect(content, this.parent);\n }\n /**\n * Handle an `is_complete_request` message.\n *\n * @param content - The content of the request.\n *\n * @returns A promise that resolves with the response message.\n */\n async isCompleteRequest(content) {\n return await this._remoteKernel.isComplete(content, this.parent);\n }\n /**\n * Handle a `comm_info_request` message.\n *\n * @param content - The content of the request.\n *\n * @returns A promise that resolves with the response message.\n */\n async commInfoRequest(content) {\n return await this._remoteKernel.commInfo(content, this.parent);\n }\n /**\n * Send an `comm_open` message.\n *\n * @param msg - The comm_open message.\n */\n async commOpen(msg) {\n return await this._remoteKernel.commOpen(msg, this.parent);\n }\n /**\n * Send an `comm_msg` message.\n *\n * @param msg - The comm_msg message.\n */\n async commMsg(msg) {\n return await this._remoteKernel.commMsg(msg, this.parent);\n }\n /**\n * Send an `comm_close` message.\n *\n * @param close - The comm_close message.\n */\n async commClose(msg) {\n return await this._remoteKernel.commClose(msg, this.parent);\n }\n /**\n * Send an `input_reply` message.\n *\n * @param content - The content of the reply.\n */\n async inputReply(content) {\n return await this._remoteKernel.inputReply(content, this.parent);\n }\n}\n","function webpackEmptyAsyncContext(req) {\n\t// Here Promise.resolve().then() is used instead of new Promise() to prevent\n\t// uncaught exception popping up in devtools\n\treturn Promise.resolve().then(() => {\n\t\tvar e = new Error(\"Cannot find module '\" + req + \"'\");\n\t\te.code = 'MODULE_NOT_FOUND';\n\t\tthrow e;\n\t});\n}\nwebpackEmptyAsyncContext.keys = () => ([]);\nwebpackEmptyAsyncContext.resolve = webpackEmptyAsyncContext;\nwebpackEmptyAsyncContext.id = 265;\nmodule.exports = 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isprotect isreg isupper isvoice iswm iswmcs \" +\n \"elseif else goto menu nicklist status title icon size option text edit \" +\n \"button check radio box scroll list combo link tab item\");\nvar functions = parseWords(\"if elseif else and not or eq ne in ni for foreach while switch\");\nvar isOperatorChar = /[+\\-*&%=<>!?^\\/\\|]/;\nfunction chain(stream, state, f) {\n state.tokenize = f;\n return f(stream, state);\n}\nfunction tokenBase(stream, state) {\n var beforeParams = state.beforeParams;\n state.beforeParams = false;\n var ch = stream.next();\n if (/[\\[\\]{}\\(\\),\\.]/.test(ch)) {\n if (ch == \"(\" && beforeParams) state.inParams = true;\n else if (ch == \")\") state.inParams = false;\n return null;\n }\n else if (/\\d/.test(ch)) {\n stream.eatWhile(/[\\w\\.]/);\n return \"number\";\n }\n else if (ch == \"\\\\\") {\n stream.eat(\"\\\\\");\n stream.eat(/./);\n return \"number\";\n }\n else if (ch == \"/\" && stream.eat(\"*\")) {\n return chain(stream, state, tokenComment);\n 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repeat repeated replace resolve retain return reuse reverse rewind right round rsquare rtf rtrace rtraceloc s s2 samploc sasautos sascontrol sasfrscr sasmsg sasmstore sasscript sasuser saving scan sdf second select selection separated seq serror set setcomm setot sign simple sin sinh siteinfo skewness skip sle sls sortedby sortpgm sortseq sortsize soundex spedis splashlocation split spool sqrt start std stderr stdin stfips stimer stname stnamel stop stopover sub subgroup subpopn substr sum sumwgt symbol symbolgen symget symput sysget sysin sysleave sysmsg sysparm sysprint sysprintfont sysprod sysrc system t table tables tan tanh tapeclose tbufsize terminal test then timepart tinv tnonct to today tol tooldef totper transformout translate trantab tranwrd trigamma trim trimn trunc truncover type unformatted uniform union until upcase update user usericon uss validate value var weight when where while wincharset window work workinit workterm write wsum xsync xwait yearcutoff yes yyq min max', ['inDataStep', 'inProc']);\ndefine('operator', 'and not ', ['inDataStep', 'inProc']);\n\n// Main function\nfunction tokenize(stream, state) {\n // Finally advance the stream\n var ch = stream.next();\n\n // BLOCKCOMMENT\n if (ch === '/' && stream.eat('*')) {\n state.continueComment = true;\n return \"comment\";\n } else if (state.continueComment === true) { // in comment block\n //comment ends at the beginning of the line\n if (ch === '*' && stream.peek() === '/') {\n stream.next();\n state.continueComment = false;\n } else if (stream.skipTo('*')) { //comment is potentially later in line\n stream.skipTo('*');\n stream.next();\n if (stream.eat('/'))\n state.continueComment = false;\n } else {\n stream.skipToEnd();\n }\n return \"comment\";\n }\n\n if (ch == \"*\" && stream.column() == stream.indentation()) {\n stream.skipToEnd()\n return \"comment\"\n }\n\n // DoubleOperator match\n var doubleOperator = ch + stream.peek();\n\n if ((ch === '\"' || ch === \"'\") && !state.continueString) {\n state.continueString = ch\n return \"string\"\n } else if (state.continueString) {\n if (state.continueString == ch) {\n state.continueString = null;\n } else if (stream.skipTo(state.continueString)) {\n // quote found on this line\n stream.next();\n state.continueString = null;\n } else {\n stream.skipToEnd();\n }\n return \"string\";\n } else if (state.continueString !== null && stream.eol()) {\n stream.skipTo(state.continueString) || stream.skipToEnd();\n return \"string\";\n } else if (/[\\d\\.]/.test(ch)) { //find numbers\n if (ch === \".\")\n stream.match(/^[0-9]+([eE][\\-+]?[0-9]+)?/);\n else if (ch === \"0\")\n stream.match(/^[xX][0-9a-fA-F]+/) || stream.match(/^0[0-7]+/);\n else\n stream.match(/^[0-9]*\\.?[0-9]*([eE][\\-+]?[0-9]+)?/);\n return \"number\";\n } else if (isDoubleOperatorChar.test(ch + stream.peek())) { // TWO SYMBOL TOKENS\n stream.next();\n return \"operator\";\n } else if (isDoubleOperatorSym.hasOwnProperty(doubleOperator)) {\n stream.next();\n if (stream.peek() === ' ')\n return isDoubleOperatorSym[doubleOperator.toLowerCase()];\n } else if (isSingleOperatorChar.test(ch)) { // SINGLE SYMBOL TOKENS\n return \"operator\";\n }\n\n // Matches one whole word -- even if the word is a character\n var word;\n if (stream.match(/[%&;\\w]+/, false) != null) {\n word = ch + stream.match(/[%&;\\w]+/, true);\n if (/&/.test(word)) return 'variable'\n } else {\n word = ch;\n }\n // the word after DATA PROC or MACRO\n if (state.nextword) {\n stream.match(/[\\w]+/);\n // match memname.libname\n if (stream.peek() === '.') stream.skipTo(' ');\n state.nextword = false;\n return 'variableName.special';\n }\n\n word = word.toLowerCase()\n // Are we in a DATA Step?\n if (state.inDataStep) {\n if (word === 'run;' || stream.match(/run\\s;/)) {\n state.inDataStep = false;\n return 'builtin';\n }\n // variable formats\n if ((word) && stream.next() === '.') {\n //either a format or libname.memname\n if (/\\w/.test(stream.peek())) return 'variableName.special';\n else return 'variable';\n }\n // do we have a DATA Step keyword\n if (word && words.hasOwnProperty(word) &&\n (words[word].state.indexOf(\"inDataStep\") !== -1 ||\n words[word].state.indexOf(\"ALL\") !== -1)) {\n //backup to the start of the word\n if (stream.start < stream.pos)\n stream.backUp(stream.pos - stream.start);\n //advance the length of the word and return\n for (var i = 0; i < word.length; ++i) stream.next();\n return words[word].style;\n }\n }\n // Are we in an Proc statement?\n if (state.inProc) {\n if (word === 'run;' || word === 'quit;') {\n state.inProc = false;\n return 'builtin';\n }\n // do we have a proc keyword\n if (word && words.hasOwnProperty(word) &&\n (words[word].state.indexOf(\"inProc\") !== -1 ||\n words[word].state.indexOf(\"ALL\") !== -1)) {\n stream.match(/[\\w]+/);\n return words[word].style;\n }\n }\n // Are we in a Macro statement?\n if (state.inMacro) {\n if (word === '%mend') {\n if (stream.peek() === ';') stream.next();\n 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Context(indented, column, type, info, align, prev) {\n this.indented = indented;\n this.column = column;\n this.type = type;\n this.info = info;\n this.align = align;\n this.prev = prev;\n}\nfunction pushContext(state, col, type, info) {\n var indent = state.indented;\n if (state.context && state.context.type == \"statement\" && type != \"statement\")\n indent = state.context.indented;\n return state.context = new Context(indent, col, type, info, null, state.context);\n}\nfunction popContext(state) {\n var t = state.context.type;\n if (t == \")\" || t == \"]\" || t == \"}\")\n state.indented = state.context.indented;\n return state.context = state.context.prev;\n}\n\nfunction typeBefore(stream, state, pos) {\n if (state.prevToken == \"variable\" || state.prevToken == \"type\") return true;\n if (/\\S(?:[^- ]>|[*\\]])\\s*$|\\*$/.test(stream.string.slice(0, pos))) return true;\n if (state.typeAtEndOfLine && stream.column() == stream.indentation()) return true;\n}\n\nfunction isTopScope(context) {\n for (;;) {\n if (!context || context.type == \"top\") return true;\n if (context.type == \"}\" && context.prev.info != \"namespace\") return false;\n context = context.prev;\n }\n}\n\nexport function clike(parserConfig) {\n var statementIndentUnit = parserConfig.statementIndentUnit,\n dontAlignCalls = parserConfig.dontAlignCalls,\n keywords = parserConfig.keywords || {},\n types = parserConfig.types || {},\n builtin = parserConfig.builtin || {},\n blockKeywords = parserConfig.blockKeywords || {},\n defKeywords = parserConfig.defKeywords || {},\n atoms = parserConfig.atoms || {},\n hooks = parserConfig.hooks || {},\n multiLineStrings = parserConfig.multiLineStrings,\n indentStatements = parserConfig.indentStatements !== false,\n indentSwitch = parserConfig.indentSwitch !== false,\n namespaceSeparator = parserConfig.namespaceSeparator,\n isPunctuationChar = parserConfig.isPunctuationChar || /[\\[\\]{}\\(\\),;\\:\\.]/,\n numberStart = parserConfig.numberStart || /[\\d\\.]/,\n number = parserConfig.number || /^(?:0x[a-f\\d]+|0b[01]+|(?:\\d+\\.?\\d*|\\.\\d+)(?:e[-+]?\\d+)?)(u|ll?|l|f)?/i,\n isOperatorChar = parserConfig.isOperatorChar || /[+\\-*&%=<>!?|\\/]/,\n isIdentifierChar = parserConfig.isIdentifierChar || /[\\w\\$_\\xa1-\\uffff]/,\n // An optional function that takes a {string} token and returns true if it\n // should be treated as a builtin.\n isReservedIdentifier = parserConfig.isReservedIdentifier || false;\n\n var curPunc, isDefKeyword;\n\n function tokenBase(stream, state) {\n var ch = stream.next();\n if (hooks[ch]) {\n var result = hooks[ch](stream, state);\n if (result !== false) return result;\n }\n if (ch == '\"' || ch == \"'\") {\n state.tokenize = tokenString(ch);\n return state.tokenize(stream, state);\n }\n if (numberStart.test(ch)) {\n stream.backUp(1)\n if (stream.match(number)) return \"number\"\n stream.next()\n }\n if (isPunctuationChar.test(ch)) {\n curPunc = ch;\n return null;\n }\n if (ch == \"/\") {\n if (stream.eat(\"*\")) {\n state.tokenize = tokenComment;\n return tokenComment(stream, state);\n }\n if (stream.eat(\"/\")) {\n stream.skipToEnd();\n return \"comment\";\n }\n }\n if (isOperatorChar.test(ch)) {\n while (!stream.match(/^\\/[\\/*]/, false) && stream.eat(isOperatorChar)) {}\n return \"operator\";\n }\n stream.eatWhile(isIdentifierChar);\n if (namespaceSeparator) while (stream.match(namespaceSeparator))\n stream.eatWhile(isIdentifierChar);\n\n var cur = stream.current();\n if (contains(keywords, cur)) {\n if (contains(blockKeywords, cur)) curPunc = \"newstatement\";\n if (contains(defKeywords, cur)) isDefKeyword = true;\n return \"keyword\";\n }\n if (contains(types, cur)) return \"type\";\n if (contains(builtin, cur)\n || (isReservedIdentifier && isReservedIdentifier(cur))) {\n if (contains(blockKeywords, cur)) curPunc = \"newstatement\";\n return \"builtin\";\n }\n if (contains(atoms, cur)) return \"atom\";\n return \"variable\";\n }\n\n function tokenString(quote) {\n return function(stream, state) {\n var escaped = false, next, end = false;\n while ((next = stream.next()) != null) {\n if (next == quote && !escaped) {end = true; break;}\n escaped = !escaped && next == \"\\\\\";\n }\n if (end || !(escaped || multiLineStrings))\n state.tokenize = null;\n return \"string\";\n };\n }\n\n function tokenComment(stream, state) {\n var maybeEnd = false, ch;\n while (ch = stream.next()) {\n if (ch == \"/\" && maybeEnd) {\n state.tokenize = null;\n break;\n }\n maybeEnd = (ch == \"*\");\n }\n return \"comment\";\n }\n\n function maybeEOL(stream, state) {\n if (parserConfig.typeFirstDefinitions && stream.eol() && isTopScope(state.context))\n state.typeAtEndOfLine = typeBefore(stream, state, stream.pos)\n }\n\n // Interface\n\n return {\n name: parserConfig.name,\n startState: function(indentUnit) {\n return {\n tokenize: null,\n context: new Context(-indentUnit, 0, \"top\", null, false),\n indented: 0,\n startOfLine: true,\n prevToken: null\n };\n },\n\n token: function(stream, state) {\n var ctx = state.context;\n if (stream.sol()) {\n if (ctx.align == null) ctx.align = false;\n state.indented = stream.indentation();\n state.startOfLine = true;\n }\n if (stream.eatSpace()) { maybeEOL(stream, state); return null; }\n curPunc = isDefKeyword = null;\n var style = (state.tokenize || tokenBase)(stream, state);\n if (style == \"comment\" || style == \"meta\") return style;\n if (ctx.align == null) ctx.align = true;\n\n if (curPunc == \";\" || curPunc == \":\" || (curPunc == \",\" && stream.match(/^\\s*(?:\\/\\/.*)?$/, false)))\n while (state.context.type == \"statement\") popContext(state);\n else if (curPunc == \"{\") pushContext(state, stream.column(), \"}\");\n else if (curPunc == \"[\") pushContext(state, stream.column(), \"]\");\n else if (curPunc == \"(\") pushContext(state, stream.column(), \")\");\n else if (curPunc == \"}\") {\n while (ctx.type == \"statement\") ctx = popContext(state);\n if (ctx.type == \"}\") ctx = popContext(state);\n while (ctx.type == \"statement\") ctx = popContext(state);\n }\n else if (curPunc == ctx.type) popContext(state);\n else if (indentStatements &&\n (((ctx.type == \"}\" || ctx.type == \"top\") && curPunc != \";\") ||\n (ctx.type == \"statement\" && curPunc == \"newstatement\"))) {\n pushContext(state, stream.column(), \"statement\", stream.current());\n }\n\n if (style == \"variable\" &&\n ((state.prevToken == \"def\" ||\n (parserConfig.typeFirstDefinitions && typeBefore(stream, state, stream.start) &&\n isTopScope(state.context) && stream.match(/^\\s*\\(/, false)))))\n style = \"def\";\n\n if (hooks.token) {\n var result = hooks.token(stream, state, style);\n if (result !== undefined) style = result;\n }\n\n if (style == \"def\" && parserConfig.styleDefs === false) style = \"variable\";\n\n state.startOfLine = false;\n state.prevToken = isDefKeyword ? \"def\" : style || curPunc;\n maybeEOL(stream, state);\n return style;\n },\n\n indent: function(state, textAfter, context) {\n if (state.tokenize != tokenBase && state.tokenize != null || state.typeAtEndOfLine && isTopScope(state.context))\n return null;\n var ctx = state.context, firstChar = textAfter && textAfter.charAt(0);\n var closing = firstChar == ctx.type;\n if (ctx.type == \"statement\" && firstChar == \"}\") ctx = ctx.prev;\n if (parserConfig.dontIndentStatements)\n while (ctx.type == \"statement\" && parserConfig.dontIndentStatements.test(ctx.info))\n ctx = ctx.prev\n if (hooks.indent) {\n var hook = hooks.indent(state, ctx, textAfter, context.unit);\n if (typeof hook == \"number\") return hook\n }\n var switchBlock = ctx.prev && ctx.prev.info == \"switch\";\n if (parserConfig.allmanIndentation && /[{(]/.test(firstChar)) {\n while (ctx.type != \"top\" && ctx.type != \"}\") ctx = ctx.prev\n return ctx.indented\n }\n if (ctx.type == \"statement\")\n return ctx.indented + (firstChar == \"{\" ? 0 : statementIndentUnit || context.unit);\n if (ctx.align && (!dontAlignCalls || ctx.type != \")\"))\n return ctx.column + (closing ? 0 : 1);\n if (ctx.type == \")\" && !closing)\n return ctx.indented + (statementIndentUnit || context.unit);\n\n return ctx.indented + (closing ? 0 : context.unit) +\n (!closing && switchBlock && !/^(?:case|default)\\b/.test(textAfter) ? context.unit : 0);\n },\n\n languageData: {\n indentOnInput: indentSwitch ? /^\\s*(?:case .*?:|default:|\\{\\}?|\\})$/ : /^\\s*[{}]$/,\n commentTokens: {line: \"//\", block: {open: \"/*\", close: \"*/\"}},\n autocomplete: Object.keys(keywords).concat(Object.keys(types)).concat(Object.keys(builtin)).concat(Object.keys(atoms)),\n ...parserConfig.languageData\n }\n };\n};\n\nfunction words(str) {\n var obj = {}, words = str.split(\" \");\n for (var i = 0; i < words.length; ++i) obj[words[i]] = true;\n return obj;\n}\nfunction contains(words, word) {\n if (typeof words === \"function\") {\n return words(word);\n } else {\n return words.propertyIsEnumerable(word);\n }\n}\nvar cKeywords = \"auto if break case register continue return default do sizeof \" +\n \"static else struct switch extern typedef union for goto while enum const \" +\n \"volatile inline restrict asm fortran\";\n\n// Keywords from https://en.cppreference.com/w/cpp/keyword includes C++20.\nvar cppKeywords = \"alignas alignof and and_eq audit axiom bitand bitor catch \" +\n \"class compl concept constexpr const_cast decltype delete dynamic_cast \" +\n \"explicit export final friend import module mutable namespace new noexcept \" +\n \"not not_eq operator or or_eq override private protected public \" +\n \"reinterpret_cast requires static_assert static_cast template this \" +\n \"thread_local throw try typeid typename using virtual xor xor_eq\";\n\nvar objCKeywords = \"bycopy byref in inout oneway out self super atomic nonatomic retain copy \" +\n \"readwrite readonly strong weak assign typeof nullable nonnull null_resettable _cmd \" +\n \"@interface @implementation @end @protocol @encode @property @synthesize @dynamic @class \" +\n \"@public @package @private @protected @required @optional @try @catch @finally @import \" +\n \"@selector @encode @defs @synchronized @autoreleasepool @compatibility_alias @available\";\n\nvar objCBuiltins = \"FOUNDATION_EXPORT FOUNDATION_EXTERN NS_INLINE NS_FORMAT_FUNCTION \" +\n \" NS_RETURNS_RETAINEDNS_ERROR_ENUM NS_RETURNS_NOT_RETAINED NS_RETURNS_INNER_POINTER \" +\n \"NS_DESIGNATED_INITIALIZER NS_ENUM NS_OPTIONS NS_REQUIRES_NIL_TERMINATION \" +\n \"NS_ASSUME_NONNULL_BEGIN NS_ASSUME_NONNULL_END NS_SWIFT_NAME NS_REFINED_FOR_SWIFT\"\n\n// Do not use this. Use the cTypes function below. This is global just to avoid\n// excessive calls when cTypes is being called multiple times during a parse.\nvar basicCTypes = words(\"int long char short double float unsigned signed \" +\n \"void bool\");\n\n// Do not use this. Use the objCTypes function below. This is global just to avoid\n// excessive calls when objCTypes is being called multiple times during a parse.\nvar basicObjCTypes = words(\"SEL instancetype id Class Protocol BOOL\");\n\n// Returns true if identifier is a \"C\" type.\n// C type is defined as those that are reserved by the compiler (basicTypes),\n// and those that end in _t (Reserved by POSIX for types)\n// http://www.gnu.org/software/libc/manual/html_node/Reserved-Names.html\nfunction cTypes(identifier) {\n return contains(basicCTypes, identifier) || /.+_t$/.test(identifier);\n}\n\n// Returns true if identifier is a \"Objective C\" type.\nfunction objCTypes(identifier) {\n return cTypes(identifier) || contains(basicObjCTypes, identifier);\n}\n\nvar cBlockKeywords = \"case do else for if switch while struct enum union\";\nvar cDefKeywords = \"struct enum union\";\n\nfunction cppHook(stream, state) {\n if (!state.startOfLine) return false\n for (var ch, next = null; ch = stream.peek();) {\n if (ch == \"\\\\\" && stream.match(/^.$/)) {\n next = cppHook\n break\n } else if (ch == \"/\" && stream.match(/^\\/[\\/\\*]/, false)) {\n break\n }\n stream.next()\n }\n state.tokenize = next\n return \"meta\"\n}\n\nfunction pointerHook(_stream, state) {\n if (state.prevToken == \"type\") return \"type\";\n return false;\n}\n\n// For C and C++ (and ObjC): identifiers starting with __\n// or _ followed by a capital letter are reserved for the compiler.\nfunction cIsReservedIdentifier(token) {\n if (!token || token.length < 2) return false;\n if (token[0] != '_') return false;\n return (token[1] == '_') || (token[1] !== token[1].toLowerCase());\n}\n\nfunction cpp14Literal(stream) {\n stream.eatWhile(/[\\w\\.']/);\n return \"number\";\n}\n\nfunction cpp11StringHook(stream, state) {\n stream.backUp(1);\n // Raw strings.\n if (stream.match(/^(?:R|u8R|uR|UR|LR)/)) {\n var match = stream.match(/^\"([^\\s\\\\()]{0,16})\\(/);\n if (!match) {\n return false;\n }\n state.cpp11RawStringDelim = match[1];\n state.tokenize = tokenRawString;\n return tokenRawString(stream, state);\n }\n // Unicode strings/chars.\n if (stream.match(/^(?:u8|u|U|L)/)) {\n if (stream.match(/^[\"']/, /* eat */ false)) {\n return \"string\";\n }\n return false;\n }\n // Ignore this hook.\n stream.next();\n return false;\n}\n\nfunction cppLooksLikeConstructor(word) {\n var lastTwo = /(\\w+)::~?(\\w+)$/.exec(word);\n return lastTwo && lastTwo[1] == lastTwo[2];\n}\n\n// C#-style strings where \"\" escapes a quote.\nfunction tokenAtString(stream, state) {\n var next;\n while ((next = stream.next()) != null) {\n if (next == '\"' && !stream.eat('\"')) {\n state.tokenize = null;\n break;\n }\n }\n return \"string\";\n}\n\n// C++11 raw string literal is \"( anything )\", where\n// can be a string up to 16 characters long.\nfunction tokenRawString(stream, state) {\n // Escape characters that have special regex meanings.\n var delim = state.cpp11RawStringDelim.replace(/[^\\w\\s]/g, '\\\\$&');\n var match = stream.match(new RegExp(\".*?\\\\)\" + delim + '\"'));\n if (match)\n state.tokenize = null;\n else\n stream.skipToEnd();\n return \"string\";\n}\n\nexport const c = clike({\n name: \"c\",\n keywords: words(cKeywords),\n types: cTypes,\n blockKeywords: words(cBlockKeywords),\n defKeywords: words(cDefKeywords),\n typeFirstDefinitions: true,\n atoms: words(\"NULL true false\"),\n isReservedIdentifier: cIsReservedIdentifier,\n hooks: {\n \"#\": cppHook,\n \"*\": pointerHook,\n }\n})\n\nexport const cpp = clike({\n name: \"cpp\",\n keywords: words(cKeywords + \" \" + cppKeywords),\n types: cTypes,\n blockKeywords: words(cBlockKeywords + \" class try catch\"),\n defKeywords: words(cDefKeywords + \" class namespace\"),\n typeFirstDefinitions: true,\n atoms: words(\"true false NULL nullptr\"),\n dontIndentStatements: /^template$/,\n isIdentifierChar: /[\\w\\$_~\\xa1-\\uffff]/,\n isReservedIdentifier: cIsReservedIdentifier,\n hooks: {\n \"#\": cppHook,\n \"*\": pointerHook,\n \"u\": cpp11StringHook,\n \"U\": cpp11StringHook,\n \"L\": cpp11StringHook,\n \"R\": cpp11StringHook,\n \"0\": cpp14Literal,\n \"1\": cpp14Literal,\n \"2\": cpp14Literal,\n \"3\": cpp14Literal,\n \"4\": cpp14Literal,\n \"5\": cpp14Literal,\n \"6\": cpp14Literal,\n \"7\": cpp14Literal,\n \"8\": cpp14Literal,\n \"9\": cpp14Literal,\n token: function(stream, state, style) {\n if (style == \"variable\" && stream.peek() == \"(\" &&\n (state.prevToken == \";\" || state.prevToken == null ||\n state.prevToken == \"}\") &&\n cppLooksLikeConstructor(stream.current()))\n return \"def\";\n }\n },\n namespaceSeparator: \"::\"\n});\n\nexport const java = clike({\n name: \"java\",\n keywords: words(\"abstract assert break case catch class const continue default \" +\n \"do else enum extends final finally for goto if implements import \" +\n \"instanceof interface native new package private protected public \" +\n \"return static strictfp super switch synchronized this throw throws transient \" +\n \"try volatile while @interface\"),\n types: words(\"var byte short int long float double boolean char void Boolean Byte Character Double Float \" +\n \"Integer Long Number Object Short String StringBuffer StringBuilder Void\"),\n blockKeywords: words(\"catch class do else finally for if switch try while\"),\n defKeywords: words(\"class interface enum @interface\"),\n typeFirstDefinitions: true,\n atoms: words(\"true false null\"),\n number: /^(?:0x[a-f\\d_]+|0b[01_]+|(?:[\\d_]+\\.?\\d*|\\.\\d+)(?:e[-+]?[\\d_]+)?)(u|ll?|l|f)?/i,\n hooks: {\n \"@\": function(stream) {\n // Don't match the @interface keyword.\n if (stream.match('interface', false)) return false;\n\n stream.eatWhile(/[\\w\\$_]/);\n return \"meta\";\n },\n '\"': function(stream, state) {\n if (!stream.match(/\"\"$/)) return false;\n state.tokenize = tokenTripleString;\n return state.tokenize(stream, state);\n }\n }\n})\n\nexport const csharp = clike({\n name: \"csharp\",\n keywords: words(\"abstract as async await base break case catch checked class const continue\" +\n \" default delegate do else enum event explicit extern finally fixed for\" +\n \" foreach goto if implicit in init interface internal is lock namespace new\" +\n \" operator out override params private protected public readonly record ref required return sealed\" +\n \" sizeof stackalloc static struct switch this throw try typeof unchecked\" +\n \" unsafe using virtual void volatile while add alias ascending descending dynamic from get\" +\n \" global group into join let orderby partial remove select set value var yield\"),\n types: words(\"Action Boolean Byte Char DateTime DateTimeOffset Decimal Double Func\" +\n \" Guid Int16 Int32 Int64 Object SByte Single String Task TimeSpan UInt16 UInt32\" +\n \" UInt64 bool byte char decimal double short int long object\" +\n \" sbyte float string ushort uint ulong\"),\n blockKeywords: words(\"catch class do else finally for foreach if struct switch try while\"),\n defKeywords: words(\"class interface namespace record struct var\"),\n typeFirstDefinitions: true,\n atoms: words(\"true false null\"),\n hooks: {\n \"@\": function(stream, state) {\n if (stream.eat('\"')) {\n state.tokenize = tokenAtString;\n return tokenAtString(stream, state);\n }\n stream.eatWhile(/[\\w\\$_]/);\n return \"meta\";\n }\n }\n});\n\nfunction tokenTripleString(stream, state) {\n var escaped = false;\n while (!stream.eol()) {\n if (!escaped && stream.match('\"\"\"')) {\n state.tokenize = null;\n break;\n }\n escaped = stream.next() == \"\\\\\" && !escaped;\n }\n return \"string\";\n}\n\nfunction tokenNestedComment(depth) {\n return function (stream, state) {\n var ch\n while (ch = stream.next()) {\n if (ch == \"*\" && stream.eat(\"/\")) {\n if (depth == 1) {\n state.tokenize = null\n break\n } else {\n state.tokenize = tokenNestedComment(depth - 1)\n return state.tokenize(stream, state)\n }\n } else if (ch == \"/\" && stream.eat(\"*\")) {\n state.tokenize = tokenNestedComment(depth + 1)\n return state.tokenize(stream, state)\n }\n }\n return \"comment\"\n }\n}\n\nexport const scala = clike({\n name: \"scala\",\n keywords: words(\n /* scala */\n \"abstract case catch class def do else extends final finally for forSome if \" +\n \"implicit import lazy match new null object override package private protected return \" +\n \"sealed super this throw trait try type val var while with yield _ \" +\n\n /* package scala */\n \"assert assume require print println printf readLine readBoolean readByte readShort \" +\n \"readChar readInt readLong readFloat readDouble\"\n ),\n types: words(\n \"AnyVal App Application Array BufferedIterator BigDecimal BigInt Char Console Either \" +\n \"Enumeration Equiv Error Exception Fractional Function IndexedSeq Int Integral Iterable \" +\n \"Iterator List Map Numeric Nil NotNull Option Ordered Ordering PartialFunction PartialOrdering \" +\n \"Product Proxy Range Responder Seq Serializable Set Specializable Stream StringBuilder \" +\n \"StringContext Symbol Throwable Traversable TraversableOnce Tuple Unit Vector \" +\n\n /* package java.lang */\n \"Boolean Byte Character CharSequence Class ClassLoader Cloneable Comparable \" +\n \"Compiler Double Exception Float Integer Long Math Number Object Package Pair Process \" +\n \"Runtime Runnable SecurityManager Short StackTraceElement StrictMath String \" +\n \"StringBuffer System Thread ThreadGroup ThreadLocal Throwable Triple Void\"\n ),\n multiLineStrings: true,\n blockKeywords: words(\"catch class enum do else finally for forSome if match switch try while\"),\n defKeywords: words(\"class enum def object package trait type val var\"),\n atoms: words(\"true false null\"),\n indentStatements: false,\n indentSwitch: false,\n isOperatorChar: /[+\\-*&%=<>!?|\\/#:@]/,\n hooks: {\n \"@\": function(stream) {\n stream.eatWhile(/[\\w\\$_]/);\n return \"meta\";\n },\n '\"': function(stream, state) {\n if (!stream.match('\"\"')) return false;\n state.tokenize = tokenTripleString;\n return state.tokenize(stream, state);\n },\n \"'\": function(stream) {\n if (stream.match(/^(\\\\[^'\\s]+|[^\\\\'])'/)) return \"character\"\n stream.eatWhile(/[\\w\\$_\\xa1-\\uffff]/);\n return \"atom\";\n },\n \"=\": function(stream, state) {\n var cx = state.context\n if (cx.type == \"}\" && cx.align && stream.eat(\">\")) {\n state.context = new Context(cx.indented, cx.column, cx.type, cx.info, null, cx.prev)\n return \"operator\"\n } else {\n return false\n }\n },\n\n \"/\": function(stream, state) {\n if (!stream.eat(\"*\")) return false\n state.tokenize = tokenNestedComment(1)\n return state.tokenize(stream, state)\n }\n },\n languageData: {\n closeBrackets: {brackets: [\"(\", \"[\", \"{\", \"'\", '\"', '\"\"\"']}\n }\n});\n\nfunction tokenKotlinString(tripleString){\n return function (stream, state) {\n var escaped = false, next, end = false;\n while (!stream.eol()) {\n if (!tripleString && !escaped && stream.match('\"') ) {end = true; break;}\n if (tripleString && stream.match('\"\"\"')) {end = true; break;}\n next = stream.next();\n if(!escaped && next == \"$\" && stream.match('{'))\n stream.skipTo(\"}\");\n escaped = !escaped && next == \"\\\\\" && !tripleString;\n }\n if (end || !tripleString)\n state.tokenize = null;\n return \"string\";\n }\n}\n\nexport const kotlin = clike({\n name: \"kotlin\",\n keywords: words(\n /*keywords*/\n \"package as typealias class interface this super val operator \" +\n \"var fun for is in This throw return annotation \" +\n \"break continue object if else while do try when !in !is as? \" +\n\n /*soft keywords*/\n \"file import where by get set abstract enum open inner override private public internal \" +\n \"protected catch finally out final vararg reified dynamic companion constructor init \" +\n \"sealed field property receiver param sparam lateinit data inline noinline tailrec \" +\n \"external annotation crossinline const operator infix suspend actual expect setparam\"\n ),\n types: words(\n /* package java.lang */\n \"Boolean Byte Character CharSequence Class ClassLoader Cloneable Comparable \" +\n \"Compiler Double Exception Float Integer Long Math Number Object Package Pair Process \" +\n \"Runtime Runnable SecurityManager Short StackTraceElement StrictMath String \" +\n \"StringBuffer System Thread ThreadGroup ThreadLocal Throwable Triple Void Annotation Any BooleanArray \" +\n \"ByteArray Char CharArray DeprecationLevel DoubleArray Enum FloatArray Function Int IntArray Lazy \" +\n \"LazyThreadSafetyMode LongArray Nothing ShortArray Unit\"\n ),\n intendSwitch: false,\n indentStatements: false,\n multiLineStrings: true,\n number: /^(?:0x[a-f\\d_]+|0b[01_]+|(?:[\\d_]+(\\.\\d+)?|\\.\\d+)(?:e[-+]?[\\d_]+)?)(u|ll?|l|f)?/i,\n blockKeywords: words(\"catch class do else finally for if where try while enum\"),\n defKeywords: words(\"class val var object interface fun\"),\n atoms: words(\"true false null this\"),\n hooks: {\n \"@\": function(stream) {\n stream.eatWhile(/[\\w\\$_]/);\n return \"meta\";\n },\n '*': function(_stream, state) {\n return state.prevToken == '.' ? 'variable' : 'operator';\n },\n '\"': function(stream, state) {\n state.tokenize = tokenKotlinString(stream.match('\"\"'));\n return state.tokenize(stream, state);\n },\n \"/\": function(stream, state) {\n if (!stream.eat(\"*\")) return false;\n state.tokenize = tokenNestedComment(1);\n return state.tokenize(stream, state)\n },\n indent: function(state, ctx, textAfter, indentUnit) {\n var firstChar = textAfter && textAfter.charAt(0);\n if ((state.prevToken == \"}\" || state.prevToken == \")\") && textAfter == \"\")\n return state.indented;\n if ((state.prevToken == \"operator\" && textAfter != \"}\" && state.context.type != \"}\") ||\n state.prevToken == \"variable\" && firstChar == \".\" ||\n (state.prevToken == \"}\" || state.prevToken == \")\") && firstChar == \".\")\n return indentUnit * 2 + ctx.indented;\n if (ctx.align && ctx.type == \"}\")\n return ctx.indented + (state.context.type == (textAfter || \"\").charAt(0) ? 0 : indentUnit);\n }\n },\n languageData: {\n closeBrackets: {brackets: [\"(\", \"[\", \"{\", \"'\", '\"', '\"\"\"']}\n }\n});\n\nexport const shader = clike({\n name: \"shader\",\n keywords: words(\"sampler1D sampler2D sampler3D samplerCube \" +\n \"sampler1DShadow sampler2DShadow \" +\n \"const attribute uniform varying \" +\n \"break continue discard return \" +\n \"for while do if else struct \" +\n \"in out inout\"),\n types: words(\"float int bool void \" +\n \"vec2 vec3 vec4 ivec2 ivec3 ivec4 bvec2 bvec3 bvec4 \" +\n \"mat2 mat3 mat4\"),\n blockKeywords: words(\"for while do if else struct\"),\n builtin: words(\"radians degrees sin cos tan asin acos atan \" +\n \"pow exp log exp2 sqrt inversesqrt \" +\n \"abs sign floor ceil fract mod min max clamp mix step smoothstep \" +\n \"length distance dot cross normalize ftransform faceforward \" +\n \"reflect refract matrixCompMult \" +\n \"lessThan lessThanEqual greaterThan greaterThanEqual \" +\n \"equal notEqual any all not \" +\n \"texture1D texture1DProj texture1DLod texture1DProjLod \" +\n \"texture2D texture2DProj texture2DLod texture2DProjLod \" +\n \"texture3D texture3DProj texture3DLod texture3DProjLod \" +\n \"textureCube textureCubeLod \" +\n \"shadow1D shadow2D shadow1DProj shadow2DProj \" +\n \"shadow1DLod shadow2DLod shadow1DProjLod shadow2DProjLod \" +\n \"dFdx dFdy fwidth \" +\n \"noise1 noise2 noise3 noise4\"),\n atoms: words(\"true false \" +\n \"gl_FragColor gl_SecondaryColor gl_Normal gl_Vertex \" +\n \"gl_MultiTexCoord0 gl_MultiTexCoord1 gl_MultiTexCoord2 gl_MultiTexCoord3 \" +\n \"gl_MultiTexCoord4 gl_MultiTexCoord5 gl_MultiTexCoord6 gl_MultiTexCoord7 \" +\n \"gl_FogCoord gl_PointCoord \" +\n \"gl_Position gl_PointSize gl_ClipVertex \" +\n \"gl_FrontColor gl_BackColor gl_FrontSecondaryColor gl_BackSecondaryColor \" +\n \"gl_TexCoord gl_FogFragCoord \" +\n \"gl_FragCoord gl_FrontFacing \" +\n \"gl_FragData gl_FragDepth \" +\n \"gl_ModelViewMatrix gl_ProjectionMatrix gl_ModelViewProjectionMatrix \" +\n \"gl_TextureMatrix gl_NormalMatrix gl_ModelViewMatrixInverse \" +\n \"gl_ProjectionMatrixInverse gl_ModelViewProjectionMatrixInverse \" +\n \"gl_TextureMatrixTranspose gl_ModelViewMatrixInverseTranspose \" +\n \"gl_ProjectionMatrixInverseTranspose \" +\n \"gl_ModelViewProjectionMatrixInverseTranspose \" +\n \"gl_TextureMatrixInverseTranspose \" +\n \"gl_NormalScale gl_DepthRange gl_ClipPlane \" +\n \"gl_Point gl_FrontMaterial gl_BackMaterial gl_LightSource gl_LightModel \" +\n \"gl_FrontLightModelProduct gl_BackLightModelProduct \" +\n \"gl_TextureColor gl_EyePlaneS gl_EyePlaneT gl_EyePlaneR gl_EyePlaneQ \" +\n \"gl_FogParameters \" +\n \"gl_MaxLights gl_MaxClipPlanes gl_MaxTextureUnits gl_MaxTextureCoords \" +\n \"gl_MaxVertexAttribs gl_MaxVertexUniformComponents gl_MaxVaryingFloats \" +\n \"gl_MaxVertexTextureImageUnits gl_MaxTextureImageUnits \" +\n \"gl_MaxFragmentUniformComponents gl_MaxCombineTextureImageUnits \" +\n \"gl_MaxDrawBuffers\"),\n indentSwitch: false,\n hooks: {\"#\": cppHook}\n})\n\nexport const nesC = clike({\n name: \"nesc\",\n keywords: words(cKeywords + \" as atomic async call command component components configuration event generic \" +\n \"implementation includes interface module new norace nx_struct nx_union post provides \" +\n \"signal task uses abstract extends\"),\n types: cTypes,\n blockKeywords: words(cBlockKeywords),\n atoms: words(\"null true false\"),\n hooks: {\"#\": cppHook}\n})\n\nexport const objectiveC = clike({\n name: \"objectivec\",\n keywords: words(cKeywords + \" \" + objCKeywords),\n types: objCTypes,\n builtin: words(objCBuiltins),\n blockKeywords: words(cBlockKeywords + \" @synthesize @try @catch @finally @autoreleasepool @synchronized\"),\n defKeywords: words(cDefKeywords + \" @interface @implementation @protocol @class\"),\n dontIndentStatements: /^@.*$/,\n typeFirstDefinitions: true,\n atoms: words(\"YES NO NULL Nil nil true false nullptr\"),\n isReservedIdentifier: cIsReservedIdentifier,\n hooks: {\n \"#\": cppHook,\n \"*\": pointerHook,\n }\n})\n\nexport const objectiveCpp = clike({\n name: \"objectivecpp\",\n keywords: words(cKeywords + \" \" + objCKeywords + \" \" + cppKeywords),\n types: objCTypes,\n builtin: words(objCBuiltins),\n blockKeywords: words(cBlockKeywords + \" @synthesize @try @catch @finally @autoreleasepool @synchronized class try catch\"),\n defKeywords: words(cDefKeywords + \" @interface @implementation @protocol @class class namespace\"),\n dontIndentStatements: /^@.*$|^template$/,\n typeFirstDefinitions: true,\n atoms: words(\"YES NO NULL Nil nil true false nullptr\"),\n isReservedIdentifier: cIsReservedIdentifier,\n hooks: {\n \"#\": cppHook,\n \"*\": pointerHook,\n \"u\": cpp11StringHook,\n \"U\": cpp11StringHook,\n \"L\": cpp11StringHook,\n \"R\": cpp11StringHook,\n \"0\": cpp14Literal,\n \"1\": cpp14Literal,\n \"2\": cpp14Literal,\n \"3\": cpp14Literal,\n \"4\": cpp14Literal,\n \"5\": cpp14Literal,\n \"6\": cpp14Literal,\n \"7\": cpp14Literal,\n \"8\": cpp14Literal,\n \"9\": cpp14Literal,\n token: function(stream, state, style) {\n if (style == \"variable\" && stream.peek() == \"(\" &&\n (state.prevToken == \";\" || state.prevToken == null ||\n state.prevToken == \"}\") &&\n cppLooksLikeConstructor(stream.current()))\n return \"def\";\n }\n },\n namespaceSeparator: \"::\"\n})\n\nexport const squirrel = clike({\n name: \"squirrel\",\n keywords: words(\"base break clone continue const default delete enum extends function in class\" +\n \" foreach local resume return this throw typeof yield constructor instanceof static\"),\n types: cTypes,\n blockKeywords: words(\"case catch class else for foreach if switch try while\"),\n defKeywords: words(\"function local class\"),\n typeFirstDefinitions: true,\n atoms: words(\"true false null\"),\n hooks: {\"#\": cppHook}\n})\n\n// Ceylon Strings need to deal with interpolation\nvar stringTokenizer = null;\nfunction tokenCeylonString(type) {\n return function(stream, state) {\n var escaped = false, next, end = false;\n while (!stream.eol()) {\n if (!escaped && stream.match('\"') &&\n (type == \"single\" || stream.match('\"\"'))) {\n end = true;\n break;\n }\n if (!escaped && stream.match('``')) {\n stringTokenizer = tokenCeylonString(type);\n end = true;\n break;\n }\n next = stream.next();\n escaped = type == \"single\" && !escaped && next == \"\\\\\";\n }\n if (end)\n state.tokenize = null;\n return \"string\";\n }\n}\n\nexport const ceylon = clike({\n name: \"ceylon\",\n keywords: words(\"abstracts alias assembly assert assign break case catch class continue dynamic else\" +\n \" exists extends finally for function given if import in interface is let module new\" +\n \" nonempty object of out outer package return satisfies super switch then this throw\" +\n \" try value void while\"),\n types: function(word) {\n // In Ceylon all identifiers that start with an uppercase are types\n var first = word.charAt(0);\n return (first === first.toUpperCase() && first !== first.toLowerCase());\n },\n blockKeywords: words(\"case catch class dynamic else finally for function if interface module new object switch try while\"),\n defKeywords: words(\"class dynamic function interface module object package value\"),\n builtin: words(\"abstract actual aliased annotation by default deprecated doc final formal late license\" +\n \" native optional sealed see serializable shared suppressWarnings tagged throws variable\"),\n isPunctuationChar: /[\\[\\]{}\\(\\),;\\:\\.`]/,\n isOperatorChar: /[+\\-*&%=<>!?|^~:\\/]/,\n numberStart: /[\\d#$]/,\n number: /^(?:#[\\da-fA-F_]+|\\$[01_]+|[\\d_]+[kMGTPmunpf]?|[\\d_]+\\.[\\d_]+(?:[eE][-+]?\\d+|[kMGTPmunpf]|)|)/i,\n multiLineStrings: true,\n typeFirstDefinitions: true,\n atoms: words(\"true false null larger smaller equal empty finished\"),\n indentSwitch: false,\n styleDefs: false,\n hooks: {\n \"@\": function(stream) {\n stream.eatWhile(/[\\w\\$_]/);\n return \"meta\";\n },\n '\"': function(stream, state) {\n state.tokenize = tokenCeylonString(stream.match('\"\"') ? \"triple\" : \"single\");\n return state.tokenize(stream, state);\n },\n '`': function(stream, state) {\n if (!stringTokenizer || !stream.match('`')) return false;\n state.tokenize = stringTokenizer;\n stringTokenizer = null;\n return state.tokenize(stream, state);\n },\n \"'\": function(stream) {\n if (stream.match(/^(\\\\[^'\\s]+|[^\\\\'])'/)) return \"string.special\"\n stream.eatWhile(/[\\w\\$_\\xa1-\\uffff]/);\n return \"atom\";\n },\n token: function(_stream, state, style) {\n if ((style == \"variable\" || style == \"type\") &&\n state.prevToken == \".\") {\n return \"variableName.special\";\n }\n }\n },\n languageData: {\n closeBrackets: {brackets: [\"(\", \"[\", \"{\", \"'\", '\"', '\"\"\"']}\n }\n})\n\nfunction pushInterpolationStack(state) {\n (state.interpolationStack || (state.interpolationStack = [])).push(state.tokenize);\n}\n\nfunction popInterpolationStack(state) {\n return (state.interpolationStack || (state.interpolationStack = [])).pop();\n}\n\nfunction sizeInterpolationStack(state) {\n return state.interpolationStack ? state.interpolationStack.length : 0;\n}\n\nfunction tokenDartString(quote, stream, state, raw) {\n var tripleQuoted = false;\n if (stream.eat(quote)) {\n if (stream.eat(quote)) tripleQuoted = true;\n else return \"string\"; //empty string\n }\n function tokenStringHelper(stream, state) {\n var escaped = false;\n while (!stream.eol()) {\n if (!raw && !escaped && stream.peek() == \"$\") {\n pushInterpolationStack(state);\n state.tokenize = tokenInterpolation;\n return \"string\";\n }\n var next = stream.next();\n if (next == quote && !escaped && (!tripleQuoted || stream.match(quote + quote))) {\n state.tokenize = null;\n break;\n }\n escaped = !raw && !escaped && next == \"\\\\\";\n }\n return \"string\";\n }\n state.tokenize = tokenStringHelper;\n return tokenStringHelper(stream, state);\n}\n\nfunction tokenInterpolation(stream, state) {\n stream.eat(\"$\");\n if (stream.eat(\"{\")) {\n // let clike handle the content of ${...},\n // we take over again when \"}\" appears (see hooks).\n state.tokenize = null;\n } else {\n state.tokenize = tokenInterpolationIdentifier;\n }\n return null;\n}\n\nfunction tokenInterpolationIdentifier(stream, state) {\n stream.eatWhile(/[\\w_]/);\n state.tokenize = popInterpolationStack(state);\n return \"variable\";\n}\n\nexport const dart = clike({\n name: \"dart\",\n keywords: words(\"this super static final const abstract class extends external factory \" +\n \"implements mixin get native set typedef with enum throw rethrow assert break case \" +\n \"continue default in return new deferred async await covariant try catch finally \" +\n \"do else for if switch while import library export part of show hide is as extension \" +\n \"on yield late required sealed base interface when inline\"),\n blockKeywords: words(\"try catch finally do else for if switch while\"),\n builtin: words(\"void bool num int double dynamic var String Null Never\"),\n atoms: words(\"true false null\"),\n hooks: {\n \"@\": function(stream) {\n stream.eatWhile(/[\\w\\$_\\.]/);\n return \"meta\";\n },\n\n // custom string handling to deal with triple-quoted strings and string interpolation\n \"'\": function(stream, state) {\n return tokenDartString(\"'\", stream, state, false);\n },\n \"\\\"\": function(stream, state) {\n return tokenDartString(\"\\\"\", stream, state, false);\n },\n \"r\": function(stream, state) {\n var peek = stream.peek();\n if (peek == \"'\" || peek == \"\\\"\") {\n return tokenDartString(stream.next(), stream, state, true);\n }\n return false;\n },\n\n \"}\": function(_stream, state) {\n // \"}\" is end of interpolation, if interpolation stack is non-empty\n if (sizeInterpolationStack(state) > 0) {\n state.tokenize = popInterpolationStack(state);\n return null;\n }\n return false;\n },\n\n \"/\": function(stream, state) {\n if (!stream.eat(\"*\")) return false\n state.tokenize = tokenNestedComment(1)\n return state.tokenize(stream, state)\n },\n token: function(stream, _, style) {\n if (style == \"variable\") {\n // Assume uppercase symbols are classes\n var isUpper = RegExp('^[_$]*[A-Z][a-zA-Z0-9_$]*$','g');\n if (isUpper.test(stream.current())) {\n return 'type';\n }\n }\n }\n 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mkGas(arch) {\n // If an architecture is specified, its initialization function may\n // populate this array with custom parsing functions which will be\n // tried in the event that the standard functions do not find a match.\n var custom = [];\n\n // The symbol used to start a line comment changes based on the target\n // architecture.\n // If no architecture is pased in \"parserConfig\" then only multiline\n // comments will have syntax support.\n var lineCommentStartSymbol = \"\";\n\n // These directives are architecture independent.\n // Machine specific directives should go in their respective\n // architecture initialization function.\n // Reference:\n // http://sourceware.org/binutils/docs/as/Pseudo-Ops.html#Pseudo-Ops\n var directives = {\n \".abort\" : \"builtin\",\n \".align\" : \"builtin\",\n \".altmacro\" : \"builtin\",\n \".ascii\" : \"builtin\",\n \".asciz\" : \"builtin\",\n \".balign\" : \"builtin\",\n \".balignw\" : \"builtin\",\n \".balignl\" : \"builtin\",\n 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\".rept\" : \"builtin\",\n \".sbttl\" : \"builtin\",\n \".scl\" : \"builtin\",\n \".section\" : \"builtin\",\n \".set\" : \"builtin\",\n \".short\" : \"builtin\",\n \".single\" : \"builtin\",\n \".size\" : \"builtin\",\n \".skip\" : \"builtin\",\n \".sleb128\" : \"builtin\",\n \".space\" : \"builtin\",\n \".stab\" : \"builtin\",\n \".string\" : \"builtin\",\n \".struct\" : \"builtin\",\n \".subsection\" : \"builtin\",\n \".symver\" : \"builtin\",\n \".tag\" : \"builtin\",\n \".text\" : \"builtin\",\n \".title\" : \"builtin\",\n \".type\" : \"builtin\",\n \".uleb128\" : \"builtin\",\n \".val\" : \"builtin\",\n \".version\" : \"builtin\",\n \".vtable_entry\" : \"builtin\",\n \".vtable_inherit\" : \"builtin\",\n \".warning\" : \"builtin\",\n \".weak\" : \"builtin\",\n \".weakref\" : \"builtin\",\n \".word\" : \"builtin\"\n };\n\n var registers = {};\n\n function x86() {\n lineCommentStartSymbol = \"#\";\n\n registers.al = \"variable\";\n registers.ah = \"variable\";\n registers.ax = \"variable\";\n registers.eax = \"variableName.special\";\n registers.rax = \"variableName.special\";\n\n registers.bl = \"variable\";\n registers.bh = \"variable\";\n registers.bx = \"variable\";\n registers.ebx = \"variableName.special\";\n registers.rbx = \"variableName.special\";\n\n registers.cl = \"variable\";\n registers.ch = \"variable\";\n registers.cx = \"variable\";\n registers.ecx = \"variableName.special\";\n registers.rcx = \"variableName.special\";\n\n registers.dl = \"variable\";\n registers.dh = \"variable\";\n registers.dx = \"variable\";\n registers.edx = \"variableName.special\";\n registers.rdx = \"variableName.special\";\n\n registers.si = \"variable\";\n registers.esi = \"variableName.special\";\n registers.rsi = \"variableName.special\";\n\n registers.di = \"variable\";\n registers.edi = \"variableName.special\";\n registers.rdi = \"variableName.special\";\n\n registers.sp = \"variable\";\n registers.esp = \"variableName.special\";\n registers.rsp = 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registers.r8 = \"variable\";\n registers.r9 = \"variable\";\n registers.r10 = \"variable\";\n registers.r11 = \"variable\";\n registers.r12 = \"variable\";\n\n registers.sp = \"variableName.special\";\n registers.lr = \"variableName.special\";\n registers.pc = \"variableName.special\";\n registers.r13 = registers.sp;\n registers.r14 = registers.lr;\n registers.r15 = registers.pc;\n\n custom.push(function(ch, stream) {\n if (ch === '#') {\n stream.eatWhile(/\\w/);\n return \"number\";\n }\n });\n }\n\n if (arch === \"x86\") {\n x86();\n } else if (arch === \"arm\" || arch === \"armv6\") {\n armv6();\n }\n\n function nextUntilUnescaped(stream, end) {\n var escaped = false, next;\n while ((next = stream.next()) != null) {\n if (next === end && !escaped) {\n return false;\n }\n escaped = !escaped && next === \"\\\\\";\n }\n return escaped;\n }\n\n function clikeComment(stream, state) {\n var maybeEnd = false, ch;\n while ((ch = stream.next()) != null) {\n if (ch === \"/\" && maybeEnd) {\n state.tokenize = null;\n break;\n }\n maybeEnd = (ch === \"*\");\n }\n return \"comment\";\n }\n\n return {\n name: \"gas\",\n startState: function() {\n return {\n tokenize: null\n };\n },\n\n token: function(stream, state) {\n if (state.tokenize) {\n return state.tokenize(stream, state);\n }\n\n if (stream.eatSpace()) {\n return null;\n }\n\n var style, cur, ch = stream.next();\n\n if (ch === \"/\") {\n if (stream.eat(\"*\")) {\n state.tokenize = clikeComment;\n return clikeComment(stream, state);\n }\n }\n\n if (ch === lineCommentStartSymbol) {\n stream.skipToEnd();\n return \"comment\";\n }\n\n if (ch === '\"') {\n nextUntilUnescaped(stream, '\"');\n return \"string\";\n }\n\n if (ch === '.') {\n stream.eatWhile(/\\w/);\n cur = stream.current().toLowerCase();\n style = directives[cur];\n return style || null;\n }\n\n if (ch === '=') {\n stream.eatWhile(/\\w/);\n return \"tag\";\n }\n\n if (ch === '{') {\n return \"bracket\";\n }\n\n if (ch === '}') {\n return \"bracket\";\n }\n\n 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{ ContextTracker, ExternalTokenizer, LRParser, LocalTokenGroup } from '@lezer/lr';\nimport { styleTags, tags } from '@lezer/highlight';\n\n// This file was generated by lezer-generator. You probably shouldn't edit it.\nconst noSemi = 304,\n incdec = 1,\n incdecPrefix = 2,\n insertSemi = 305,\n spaces = 307,\n newline = 308,\n LineComment = 3,\n BlockComment = 4;\n\n/* Hand-written tokenizers for JavaScript tokens that can't be\n expressed by lezer's built-in tokenizer. */\n\nconst space = [9, 10, 11, 12, 13, 32, 133, 160, 5760, 8192, 8193, 8194, 8195, 8196, 8197, 8198, 8199, 8200,\n 8201, 8202, 8232, 8233, 8239, 8287, 12288];\n\nconst braceR = 125, semicolon = 59, slash = 47, star = 42, plus = 43, minus = 45;\n\nconst trackNewline = new ContextTracker({\n start: false,\n shift(context, term) {\n return term == LineComment || term == BlockComment || term == spaces ? context : term == newline\n },\n strict: false\n});\n\nconst insertSemicolon = new ExternalTokenizer((input, stack) => {\n let {next} = input;\n if (next == braceR || next == -1 || stack.context)\n input.acceptToken(insertSemi);\n}, {contextual: true, fallback: true});\n\nconst noSemicolon = new ExternalTokenizer((input, stack) => {\n let {next} = input, after;\n if (space.indexOf(next) > -1) return\n if (next == slash && ((after = input.peek(1)) == slash || after == star)) return\n if (next != braceR && next != semicolon && next != -1 && !stack.context)\n input.acceptToken(noSemi);\n}, {contextual: true});\n\nconst incdecToken = new ExternalTokenizer((input, stack) => {\n let {next} = input;\n if (next == plus || next == minus) {\n input.advance();\n if (next == input.next) {\n input.advance();\n let mayPostfix = !stack.context && stack.canShift(incdec);\n input.acceptToken(mayPostfix ? incdec : incdecPrefix);\n }\n }\n}, {contextual: true});\n\nconst jsHighlight = styleTags({\n \"get set async static\": tags.modifier,\n \"for while do if else switch try catch finally return throw break continue default case\": tags.controlKeyword,\n \"in of await yield void typeof delete instanceof\": tags.operatorKeyword,\n \"let var const using function class extends\": tags.definitionKeyword,\n \"import export from\": tags.moduleKeyword,\n \"with debugger as new\": tags.keyword,\n TemplateString: tags.special(tags.string),\n super: tags.atom,\n BooleanLiteral: tags.bool,\n this: tags.self,\n null: tags.null,\n Star: tags.modifier,\n VariableName: tags.variableName,\n \"CallExpression/VariableName TaggedTemplateExpression/VariableName\": tags.function(tags.variableName),\n VariableDefinition: tags.definition(tags.variableName),\n Label: tags.labelName,\n PropertyName: tags.propertyName,\n PrivatePropertyName: tags.special(tags.propertyName),\n \"CallExpression/MemberExpression/PropertyName\": tags.function(tags.propertyName),\n \"FunctionDeclaration/VariableDefinition\": tags.function(tags.definition(tags.variableName)),\n \"ClassDeclaration/VariableDefinition\": tags.definition(tags.className),\n PropertyDefinition: tags.definition(tags.propertyName),\n PrivatePropertyDefinition: tags.definition(tags.special(tags.propertyName)),\n UpdateOp: tags.updateOperator,\n \"LineComment Hashbang\": tags.lineComment,\n BlockComment: tags.blockComment,\n Number: tags.number,\n String: tags.string,\n Escape: tags.escape,\n ArithOp: tags.arithmeticOperator,\n LogicOp: tags.logicOperator,\n BitOp: tags.bitwiseOperator,\n CompareOp: tags.compareOperator,\n RegExp: tags.regexp,\n Equals: tags.definitionOperator,\n Arrow: tags.function(tags.punctuation),\n \": Spread\": tags.punctuation,\n \"( )\": tags.paren,\n \"[ ]\": tags.squareBracket,\n \"{ }\": tags.brace,\n \"InterpolationStart InterpolationEnd\": tags.special(tags.brace),\n \".\": tags.derefOperator,\n \", ;\": tags.separator,\n \"@\": tags.meta,\n\n TypeName: tags.typeName,\n TypeDefinition: tags.definition(tags.typeName),\n \"type enum interface implements namespace module declare\": tags.definitionKeyword,\n \"abstract global Privacy readonly override\": tags.modifier,\n \"is keyof unique infer\": tags.operatorKeyword,\n\n JSXAttributeValue: tags.attributeValue,\n JSXText: tags.content,\n \"JSXStartTag JSXStartCloseTag JSXSelfCloseEndTag JSXEndTag\": tags.angleBracket,\n \"JSXIdentifier JSXNameSpacedName\": tags.tagName,\n \"JSXAttribute/JSXIdentifier JSXAttribute/JSXNameSpacedName\": tags.attributeName,\n \"JSXBuiltin/JSXIdentifier\": tags.standard(tags.tagName)\n});\n\n// This file was generated by lezer-generator. You probably shouldn't edit it.\nconst spec_identifier = {__proto__:null,export:16, as:21, from:29, default:32, async:37, function:38, extends:48, this:52, true:60, false:60, null:72, void:76, typeof:80, super:98, new:132, delete:148, yield:157, await:161, class:166, public:223, private:223, protected:223, readonly:225, instanceof:244, satisfies:247, in:248, const:250, import:282, keyof:337, unique:341, infer:347, is:383, abstract:403, implements:405, type:407, let:410, var:412, using:415, interface:421, enum:425, namespace:431, module:433, declare:437, global:441, for:460, of:469, while:472, with:476, do:480, if:484, else:486, switch:490, case:496, try:502, catch:506, finally:510, return:514, throw:518, break:522, continue:526, debugger:530};\nconst spec_word = {__proto__:null,async:119, get:121, set:123, declare:183, public:185, private:185, protected:185, static:187, abstract:189, override:191, readonly:197, accessor:199, new:387};\nconst spec_LessThan = {__proto__:null,\"<\":139};\nconst parser = LRParser.deserialize({\n version: 14,\n states: 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function mkCSS(parserConfig) {\n parserConfig = {...defaults, ...parserConfig}\n var inline = parserConfig.inline\n\n var tokenHooks = parserConfig.tokenHooks,\n documentTypes = parserConfig.documentTypes || {},\n mediaTypes = parserConfig.mediaTypes || {},\n mediaFeatures = parserConfig.mediaFeatures || {},\n mediaValueKeywords = parserConfig.mediaValueKeywords || {},\n propertyKeywords = parserConfig.propertyKeywords || {},\n nonStandardPropertyKeywords = parserConfig.nonStandardPropertyKeywords || {},\n fontProperties = parserConfig.fontProperties || {},\n counterDescriptors = parserConfig.counterDescriptors || {},\n colorKeywords = parserConfig.colorKeywords || {},\n valueKeywords = parserConfig.valueKeywords || {},\n allowNested = parserConfig.allowNested,\n lineComment = parserConfig.lineComment,\n supportsAtComponent = parserConfig.supportsAtComponent === true,\n highlightNonStandardPropertyKeywords = parserConfig.highlightNonStandardPropertyKeywords !== false;\n\n var type, override;\n function ret(style, tp) { type = tp; return style; }\n\n // Tokenizers\n\n function tokenBase(stream, state) {\n var ch = stream.next();\n if (tokenHooks[ch]) {\n var result = tokenHooks[ch](stream, state);\n if (result !== false) return result;\n }\n if (ch == \"@\") {\n stream.eatWhile(/[\\w\\\\\\-]/);\n return ret(\"def\", stream.current());\n } else if (ch == \"=\" || (ch == \"~\" || ch == \"|\") && stream.eat(\"=\")) {\n return ret(null, \"compare\");\n } else if (ch == \"\\\"\" || ch == \"'\") {\n state.tokenize = tokenString(ch);\n return state.tokenize(stream, state);\n } else if (ch == \"#\") {\n stream.eatWhile(/[\\w\\\\\\-]/);\n return ret(\"atom\", \"hash\");\n } else if (ch == \"!\") {\n stream.match(/^\\s*\\w*/);\n return ret(\"keyword\", \"important\");\n } else if (/\\d/.test(ch) || ch == \".\" && stream.eat(/\\d/)) {\n stream.eatWhile(/[\\w.%]/);\n return ret(\"number\", \"unit\");\n } else if (ch === \"-\") {\n if (/[\\d.]/.test(stream.peek())) {\n stream.eatWhile(/[\\w.%]/);\n return ret(\"number\", \"unit\");\n } else if (stream.match(/^-[\\w\\\\\\-]*/)) {\n stream.eatWhile(/[\\w\\\\\\-]/);\n if (stream.match(/^\\s*:/, false))\n return ret(\"def\", \"variable-definition\");\n return ret(\"variableName\", \"variable\");\n } else if (stream.match(/^\\w+-/)) {\n return ret(\"meta\", \"meta\");\n }\n } else if (/[,+>*\\/]/.test(ch)) {\n return ret(null, \"select-op\");\n } else if (ch == \".\" && stream.match(/^-?[_a-z][_a-z0-9-]*/i)) {\n return ret(\"qualifier\", \"qualifier\");\n } else if (/[:;{}\\[\\]\\(\\)]/.test(ch)) {\n return ret(null, ch);\n } else if (stream.match(/^[\\w-.]+(?=\\()/)) {\n if (/^(url(-prefix)?|domain|regexp)$/i.test(stream.current())) {\n state.tokenize = tokenParenthesized;\n }\n return ret(\"variableName.function\", \"variable\");\n } else if (/[\\w\\\\\\-]/.test(ch)) {\n stream.eatWhile(/[\\w\\\\\\-]/);\n return ret(\"property\", \"word\");\n } else {\n return ret(null, null);\n }\n }\n\n function tokenString(quote) {\n return function(stream, state) {\n var escaped = false, ch;\n while ((ch = stream.next()) != null) {\n if (ch == quote && !escaped) {\n if (quote == \")\") stream.backUp(1);\n break;\n }\n escaped = !escaped && ch == \"\\\\\";\n }\n if (ch == quote || !escaped && quote != \")\") state.tokenize = null;\n return ret(\"string\", \"string\");\n };\n }\n\n function tokenParenthesized(stream, state) {\n stream.next(); // Must be '('\n if (!stream.match(/^\\s*[\\\"\\')]/, false))\n state.tokenize = tokenString(\")\");\n else\n state.tokenize = null;\n return ret(null, \"(\");\n }\n\n // Context management\n\n function Context(type, indent, prev) {\n this.type = type;\n this.indent = indent;\n this.prev = prev;\n }\n\n function pushContext(state, stream, type, indent) {\n state.context = new Context(type, stream.indentation() + (indent === false ? 0 : stream.indentUnit), state.context);\n return type;\n }\n\n function popContext(state) {\n if (state.context.prev)\n state.context = state.context.prev;\n return state.context.type;\n }\n\n function pass(type, stream, state) {\n return states[state.context.type](type, stream, state);\n }\n function popAndPass(type, stream, state, n) {\n for (var i = n || 1; i > 0; i--)\n state.context = state.context.prev;\n return pass(type, stream, state);\n }\n\n // Parser\n\n function wordAsValue(stream) {\n var word = stream.current().toLowerCase();\n if (valueKeywords.hasOwnProperty(word))\n override = \"atom\";\n else if (colorKeywords.hasOwnProperty(word))\n override = \"keyword\";\n else\n override = \"variable\";\n }\n\n var states = {};\n\n states.top = function(type, stream, state) {\n if (type == \"{\") {\n return pushContext(state, stream, \"block\");\n } else if (type == \"}\" && state.context.prev) {\n return popContext(state);\n } else if (supportsAtComponent && /@component/i.test(type)) {\n return pushContext(state, stream, \"atComponentBlock\");\n } else if (/^@(-moz-)?document$/i.test(type)) {\n return pushContext(state, stream, \"documentTypes\");\n } else if (/^@(media|supports|(-moz-)?document|import)$/i.test(type)) {\n return pushContext(state, stream, \"atBlock\");\n } else if (/^@(font-face|counter-style)/i.test(type)) {\n state.stateArg = type;\n return \"restricted_atBlock_before\";\n } else if (/^@(-(moz|ms|o|webkit)-)?keyframes$/i.test(type)) {\n return \"keyframes\";\n } else if (type && type.charAt(0) == \"@\") {\n return pushContext(state, stream, \"at\");\n } else if (type == \"hash\") {\n override = \"builtin\";\n } else if (type == \"word\") {\n override = \"tag\";\n } else if (type == \"variable-definition\") {\n return \"maybeprop\";\n } else if (type == \"interpolation\") {\n return pushContext(state, stream, \"interpolation\");\n } else if (type == \":\") {\n return \"pseudo\";\n } else if (allowNested && type == \"(\") {\n return pushContext(state, stream, \"parens\");\n }\n return state.context.type;\n };\n\n states.block = function(type, stream, state) {\n if (type == \"word\") {\n var word = stream.current().toLowerCase();\n if (propertyKeywords.hasOwnProperty(word)) {\n override = \"property\";\n return \"maybeprop\";\n } else if (nonStandardPropertyKeywords.hasOwnProperty(word)) {\n override = highlightNonStandardPropertyKeywords ? \"string.special\" : \"property\";\n return \"maybeprop\";\n } else if (allowNested) {\n override = stream.match(/^\\s*:(?:\\s|$)/, false) ? \"property\" : \"tag\";\n return \"block\";\n } else {\n override = \"error\";\n return \"maybeprop\";\n }\n } else if (type == \"meta\") {\n return \"block\";\n } else if (!allowNested && (type == \"hash\" || type == \"qualifier\")) {\n override = \"error\";\n return \"block\";\n } else {\n return states.top(type, stream, state);\n }\n };\n\n states.maybeprop = function(type, stream, state) {\n if (type == \":\") return pushContext(state, stream, \"prop\");\n return pass(type, stream, state);\n };\n\n states.prop = function(type, stream, state) {\n if (type == \";\") return popContext(state);\n if (type == \"{\" && allowNested) return pushContext(state, stream, \"propBlock\");\n if (type == \"}\" || type == \"{\") return popAndPass(type, stream, state);\n if (type == \"(\") return pushContext(state, stream, \"parens\");\n\n if (type == \"hash\" && !/^#([0-9a-fA-F]{3,4}|[0-9a-fA-F]{6}|[0-9a-fA-F]{8})$/.test(stream.current())) {\n override = \"error\";\n } else if (type == \"word\") {\n wordAsValue(stream);\n } else if (type == \"interpolation\") {\n return pushContext(state, stream, \"interpolation\");\n }\n return \"prop\";\n };\n\n states.propBlock = function(type, _stream, state) {\n if (type == \"}\") return popContext(state);\n if (type == \"word\") { override = \"property\"; return \"maybeprop\"; }\n return state.context.type;\n };\n\n states.parens = function(type, stream, state) {\n if (type == \"{\" || type == \"}\") return popAndPass(type, stream, state);\n if (type == \")\") return popContext(state);\n if (type == \"(\") return pushContext(state, stream, \"parens\");\n if (type == \"interpolation\") return pushContext(state, stream, \"interpolation\");\n if (type == \"word\") wordAsValue(stream);\n return \"parens\";\n };\n\n states.pseudo = function(type, stream, state) {\n if (type == \"meta\") return \"pseudo\";\n\n if (type == \"word\") {\n override = \"variableName.constant\";\n return state.context.type;\n }\n return pass(type, stream, state);\n };\n\n states.documentTypes = function(type, stream, state) {\n if (type == \"word\" && documentTypes.hasOwnProperty(stream.current())) {\n override = \"tag\";\n return state.context.type;\n } else {\n return states.atBlock(type, stream, state);\n }\n };\n\n states.atBlock = function(type, stream, state) {\n if (type == \"(\") return pushContext(state, stream, \"atBlock_parens\");\n if (type == \"}\" || type == \";\") return popAndPass(type, stream, state);\n if (type == \"{\") return popContext(state) && pushContext(state, stream, allowNested ? \"block\" : \"top\");\n\n if (type == \"interpolation\") return pushContext(state, stream, \"interpolation\");\n\n if (type == \"word\") {\n var word = stream.current().toLowerCase();\n if (word == \"only\" || word == \"not\" || word == \"and\" || word == \"or\")\n override = \"keyword\";\n else if (mediaTypes.hasOwnProperty(word))\n override = \"attribute\";\n else if (mediaFeatures.hasOwnProperty(word))\n override = \"property\";\n else if (mediaValueKeywords.hasOwnProperty(word))\n override = \"keyword\";\n else if (propertyKeywords.hasOwnProperty(word))\n override = \"property\";\n else if (nonStandardPropertyKeywords.hasOwnProperty(word))\n override = highlightNonStandardPropertyKeywords ? \"string.special\" : \"property\";\n else if (valueKeywords.hasOwnProperty(word))\n override = \"atom\";\n else if (colorKeywords.hasOwnProperty(word))\n override = \"keyword\";\n else\n override = \"error\";\n }\n return state.context.type;\n };\n\n states.atComponentBlock = function(type, stream, state) {\n if (type == \"}\")\n return popAndPass(type, stream, state);\n if (type == \"{\")\n return popContext(state) && pushContext(state, stream, allowNested ? \"block\" : \"top\", false);\n if (type == \"word\")\n override = \"error\";\n return state.context.type;\n };\n\n states.atBlock_parens = function(type, stream, state) {\n if (type == \")\") return popContext(state);\n if (type == \"{\" || type == \"}\") return popAndPass(type, stream, state, 2);\n return states.atBlock(type, stream, state);\n };\n\n states.restricted_atBlock_before = function(type, stream, state) {\n if (type == \"{\")\n return pushContext(state, stream, \"restricted_atBlock\");\n if (type == \"word\" && state.stateArg == \"@counter-style\") {\n override = \"variable\";\n return \"restricted_atBlock_before\";\n }\n return pass(type, stream, state);\n };\n\n states.restricted_atBlock = function(type, stream, state) {\n if (type == \"}\") {\n state.stateArg = null;\n return popContext(state);\n }\n if (type == \"word\") {\n if ((state.stateArg == \"@font-face\" && !fontProperties.hasOwnProperty(stream.current().toLowerCase())) ||\n (state.stateArg == \"@counter-style\" && !counterDescriptors.hasOwnProperty(stream.current().toLowerCase())))\n override = \"error\";\n else\n override = \"property\";\n return \"maybeprop\";\n }\n return \"restricted_atBlock\";\n };\n\n states.keyframes = function(type, stream, state) {\n if (type == \"word\") { override = \"variable\"; return \"keyframes\"; }\n if (type == \"{\") return pushContext(state, stream, \"top\");\n return pass(type, stream, state);\n };\n\n states.at = function(type, stream, state) {\n if (type == \";\") return popContext(state);\n if (type == \"{\" || type == \"}\") return popAndPass(type, stream, state);\n if (type == \"word\") override = \"tag\";\n else if (type == \"hash\") override = \"builtin\";\n return \"at\";\n };\n\n states.interpolation = function(type, stream, state) {\n if (type == \"}\") return popContext(state);\n if (type == \"{\" || type == \";\") return popAndPass(type, stream, state);\n if (type == \"word\") override = \"variable\";\n else if (type != \"variable\" && type != \"(\" && type != \")\") override = \"error\";\n return \"interpolation\";\n };\n\n return {\n name: parserConfig.name,\n startState: function() {\n return {tokenize: null,\n state: inline ? \"block\" : \"top\",\n stateArg: null,\n context: new Context(inline ? \"block\" : \"top\", 0, null)};\n },\n\n token: function(stream, state) {\n if (!state.tokenize && stream.eatSpace()) return null;\n var style = (state.tokenize || tokenBase)(stream, state);\n if (style && typeof style == \"object\") {\n type = style[1];\n style = style[0];\n }\n override = style;\n if (type != \"comment\")\n state.state = states[state.state](type, stream, state);\n return override;\n },\n\n indent: function(state, textAfter, iCx) {\n var cx = state.context, ch = textAfter && textAfter.charAt(0);\n var indent = cx.indent;\n if (cx.type == \"prop\" && (ch == \"}\" || ch == \")\")) cx = cx.prev;\n if (cx.prev) {\n if (ch == \"}\" && (cx.type == \"block\" || cx.type == \"top\" ||\n cx.type == \"interpolation\" || cx.type == \"restricted_atBlock\")) {\n // Resume indentation from parent context.\n cx = cx.prev;\n indent = cx.indent;\n } else if (ch == \")\" && (cx.type == \"parens\" || cx.type == \"atBlock_parens\") ||\n ch == \"{\" && (cx.type == \"at\" || cx.type == \"atBlock\")) {\n // Dedent relative to current context.\n indent = Math.max(0, cx.indent - iCx.unit);\n }\n }\n return indent;\n },\n\n languageData: {\n indentOnInput: /^\\s*\\}$/,\n commentTokens: {line: lineComment, block: {open: \"/*\", close: \"*/\"}},\n autocomplete: allWords\n }\n };\n};\n\nfunction keySet(array) {\n var keys = {};\n for (var i = 0; i < array.length; ++i) {\n keys[array[i].toLowerCase()] = true;\n }\n return keys;\n}\n\nvar documentTypes_ = [\n \"domain\", \"regexp\", \"url\", \"url-prefix\"\n], documentTypes = keySet(documentTypes_);\n\nvar mediaTypes_ = [\n \"all\", \"aural\", \"braille\", \"handheld\", \"print\", \"projection\", \"screen\",\n \"tty\", \"tv\", \"embossed\"\n], mediaTypes = keySet(mediaTypes_);\n\nvar mediaFeatures_ = [\n \"width\", \"min-width\", \"max-width\", \"height\", \"min-height\", \"max-height\",\n \"device-width\", \"min-device-width\", \"max-device-width\", \"device-height\",\n \"min-device-height\", \"max-device-height\", \"aspect-ratio\",\n \"min-aspect-ratio\", \"max-aspect-ratio\", \"device-aspect-ratio\",\n \"min-device-aspect-ratio\", \"max-device-aspect-ratio\", \"color\", \"min-color\",\n \"max-color\", \"color-index\", \"min-color-index\", \"max-color-index\",\n \"monochrome\", \"min-monochrome\", \"max-monochrome\", \"resolution\",\n \"min-resolution\", \"max-resolution\", \"scan\", \"grid\", \"orientation\",\n \"device-pixel-ratio\", \"min-device-pixel-ratio\", \"max-device-pixel-ratio\",\n \"pointer\", \"any-pointer\", \"hover\", \"any-hover\", \"prefers-color-scheme\",\n \"dynamic-range\", \"video-dynamic-range\"\n], mediaFeatures = keySet(mediaFeatures_);\n\nvar mediaValueKeywords_ = [\n \"landscape\", \"portrait\", \"none\", \"coarse\", \"fine\", \"on-demand\", \"hover\",\n \"interlace\", \"progressive\",\n \"dark\", \"light\",\n \"standard\", \"high\"\n], mediaValueKeywords = keySet(mediaValueKeywords_);\n\nvar propertyKeywords_ = [\n \"align-content\", \"align-items\", \"align-self\", \"alignment-adjust\",\n \"alignment-baseline\", \"all\", \"anchor-point\", \"animation\", \"animation-delay\",\n \"animation-direction\", \"animation-duration\", \"animation-fill-mode\",\n \"animation-iteration-count\", \"animation-name\", \"animation-play-state\",\n \"animation-timing-function\", \"appearance\", \"azimuth\", \"backdrop-filter\",\n \"backface-visibility\", \"background\", \"background-attachment\",\n \"background-blend-mode\", \"background-clip\", \"background-color\",\n \"background-image\", \"background-origin\", \"background-position\",\n \"background-position-x\", \"background-position-y\", \"background-repeat\",\n \"background-size\", \"baseline-shift\", \"binding\", \"bleed\", \"block-size\",\n \"bookmark-label\", \"bookmark-level\", \"bookmark-state\", \"bookmark-target\",\n \"border\", \"border-bottom\", \"border-bottom-color\", \"border-bottom-left-radius\",\n \"border-bottom-right-radius\", \"border-bottom-style\", \"border-bottom-width\",\n \"border-collapse\", \"border-color\", \"border-image\", \"border-image-outset\",\n \"border-image-repeat\", \"border-image-slice\", \"border-image-source\",\n \"border-image-width\", \"border-left\", \"border-left-color\", \"border-left-style\",\n \"border-left-width\", \"border-radius\", \"border-right\", \"border-right-color\",\n \"border-right-style\", \"border-right-width\", \"border-spacing\", \"border-style\",\n \"border-top\", \"border-top-color\", \"border-top-left-radius\",\n \"border-top-right-radius\", \"border-top-style\", \"border-top-width\",\n \"border-width\", \"bottom\", \"box-decoration-break\", \"box-shadow\", \"box-sizing\",\n \"break-after\", \"break-before\", \"break-inside\", \"caption-side\", \"caret-color\",\n \"clear\", \"clip\", \"color\", \"color-profile\", \"column-count\", \"column-fill\",\n \"column-gap\", \"column-rule\", \"column-rule-color\", \"column-rule-style\",\n \"column-rule-width\", \"column-span\", \"column-width\", \"columns\", \"contain\",\n \"content\", \"counter-increment\", \"counter-reset\", \"crop\", \"cue\", \"cue-after\",\n \"cue-before\", \"cursor\", \"direction\", \"display\", \"dominant-baseline\",\n \"drop-initial-after-adjust\", \"drop-initial-after-align\",\n \"drop-initial-before-adjust\", \"drop-initial-before-align\", \"drop-initial-size\",\n \"drop-initial-value\", \"elevation\", \"empty-cells\", \"fit\", \"fit-content\", \"fit-position\",\n \"flex\", \"flex-basis\", \"flex-direction\", \"flex-flow\", \"flex-grow\",\n \"flex-shrink\", \"flex-wrap\", \"float\", \"float-offset\", \"flow-from\", \"flow-into\",\n \"font\", \"font-family\", \"font-feature-settings\", \"font-kerning\",\n \"font-language-override\", \"font-optical-sizing\", \"font-size\",\n \"font-size-adjust\", \"font-stretch\", \"font-style\", \"font-synthesis\",\n \"font-variant\", \"font-variant-alternates\", \"font-variant-caps\",\n \"font-variant-east-asian\", \"font-variant-ligatures\", \"font-variant-numeric\",\n \"font-variant-position\", \"font-variation-settings\", \"font-weight\", \"gap\",\n \"grid\", \"grid-area\", \"grid-auto-columns\", \"grid-auto-flow\", \"grid-auto-rows\",\n \"grid-column\", \"grid-column-end\", \"grid-column-gap\", \"grid-column-start\",\n \"grid-gap\", \"grid-row\", \"grid-row-end\", \"grid-row-gap\", \"grid-row-start\",\n \"grid-template\", \"grid-template-areas\", \"grid-template-columns\",\n \"grid-template-rows\", \"hanging-punctuation\", \"height\", \"hyphens\", \"icon\",\n \"image-orientation\", \"image-rendering\", \"image-resolution\", \"inline-box-align\",\n \"inset\", \"inset-block\", \"inset-block-end\", \"inset-block-start\", \"inset-inline\",\n \"inset-inline-end\", \"inset-inline-start\", \"isolation\", \"justify-content\",\n \"justify-items\", \"justify-self\", \"left\", \"letter-spacing\", \"line-break\",\n \"line-height\", \"line-height-step\", \"line-stacking\", \"line-stacking-ruby\",\n \"line-stacking-shift\", \"line-stacking-strategy\", \"list-style\",\n \"list-style-image\", \"list-style-position\", \"list-style-type\", \"margin\",\n \"margin-bottom\", \"margin-left\", \"margin-right\", \"margin-top\", \"marks\",\n \"marquee-direction\", \"marquee-loop\", \"marquee-play-count\", \"marquee-speed\",\n \"marquee-style\", \"mask-clip\", \"mask-composite\", \"mask-image\", \"mask-mode\",\n \"mask-origin\", \"mask-position\", \"mask-repeat\", \"mask-size\",\"mask-type\",\n \"max-block-size\", \"max-height\", \"max-inline-size\",\n \"max-width\", \"min-block-size\", \"min-height\", \"min-inline-size\", \"min-width\",\n \"mix-blend-mode\", \"move-to\", \"nav-down\", \"nav-index\", \"nav-left\", \"nav-right\",\n \"nav-up\", \"object-fit\", \"object-position\", \"offset\", \"offset-anchor\",\n \"offset-distance\", \"offset-path\", \"offset-position\", \"offset-rotate\",\n \"opacity\", \"order\", \"orphans\", \"outline\", \"outline-color\", \"outline-offset\",\n \"outline-style\", \"outline-width\", \"overflow\", \"overflow-style\",\n \"overflow-wrap\", \"overflow-x\", \"overflow-y\", \"padding\", \"padding-bottom\",\n \"padding-left\", \"padding-right\", \"padding-top\", \"page\", \"page-break-after\",\n \"page-break-before\", \"page-break-inside\", \"page-policy\", \"pause\",\n \"pause-after\", \"pause-before\", \"perspective\", \"perspective-origin\", \"pitch\",\n \"pitch-range\", \"place-content\", \"place-items\", \"place-self\", \"play-during\",\n \"position\", \"presentation-level\", \"punctuation-trim\", \"quotes\",\n \"region-break-after\", \"region-break-before\", \"region-break-inside\",\n \"region-fragment\", \"rendering-intent\", \"resize\", \"rest\", \"rest-after\",\n \"rest-before\", \"richness\", \"right\", \"rotate\", \"rotation\", \"rotation-point\",\n \"row-gap\", \"ruby-align\", \"ruby-overhang\", \"ruby-position\", \"ruby-span\",\n \"scale\", \"scroll-behavior\", \"scroll-margin\", \"scroll-margin-block\",\n \"scroll-margin-block-end\", \"scroll-margin-block-start\", \"scroll-margin-bottom\",\n \"scroll-margin-inline\", \"scroll-margin-inline-end\",\n \"scroll-margin-inline-start\", \"scroll-margin-left\", \"scroll-margin-right\",\n \"scroll-margin-top\", \"scroll-padding\", \"scroll-padding-block\",\n \"scroll-padding-block-end\", \"scroll-padding-block-start\",\n \"scroll-padding-bottom\", \"scroll-padding-inline\", \"scroll-padding-inline-end\",\n \"scroll-padding-inline-start\", \"scroll-padding-left\", \"scroll-padding-right\",\n \"scroll-padding-top\", \"scroll-snap-align\", \"scroll-snap-type\",\n \"shape-image-threshold\", \"shape-inside\", \"shape-margin\", \"shape-outside\",\n \"size\", \"speak\", \"speak-as\", \"speak-header\", \"speak-numeral\",\n \"speak-punctuation\", \"speech-rate\", \"stress\", \"string-set\", \"tab-size\",\n \"table-layout\", \"target\", \"target-name\", \"target-new\", \"target-position\",\n \"text-align\", \"text-align-last\", \"text-combine-upright\", \"text-decoration\",\n \"text-decoration-color\", \"text-decoration-line\", \"text-decoration-skip\",\n \"text-decoration-skip-ink\", \"text-decoration-style\", \"text-emphasis\",\n \"text-emphasis-color\", \"text-emphasis-position\", \"text-emphasis-style\",\n \"text-height\", \"text-indent\", \"text-justify\", \"text-orientation\",\n \"text-outline\", \"text-overflow\", \"text-rendering\", \"text-shadow\",\n \"text-size-adjust\", \"text-space-collapse\", \"text-transform\",\n \"text-underline-position\", \"text-wrap\", \"top\", \"touch-action\", \"transform\", \"transform-origin\",\n \"transform-style\", \"transition\", \"transition-delay\", \"transition-duration\",\n \"transition-property\", \"transition-timing-function\", \"translate\",\n \"unicode-bidi\", \"user-select\", \"vertical-align\", \"visibility\", \"voice-balance\",\n \"voice-duration\", \"voice-family\", \"voice-pitch\", \"voice-range\", \"voice-rate\",\n \"voice-stress\", \"voice-volume\", \"volume\", \"white-space\", \"widows\", \"width\",\n \"will-change\", \"word-break\", \"word-spacing\", \"word-wrap\", \"writing-mode\", \"z-index\",\n // SVG-specific\n \"clip-path\", \"clip-rule\", \"mask\", \"enable-background\", \"filter\", \"flood-color\",\n \"flood-opacity\", \"lighting-color\", \"stop-color\", \"stop-opacity\", \"pointer-events\",\n \"color-interpolation\", \"color-interpolation-filters\",\n \"color-rendering\", \"fill\", \"fill-opacity\", \"fill-rule\", \"image-rendering\",\n \"marker\", \"marker-end\", \"marker-mid\", \"marker-start\", \"paint-order\", \"shape-rendering\", \"stroke\",\n \"stroke-dasharray\", \"stroke-dashoffset\", \"stroke-linecap\", \"stroke-linejoin\",\n \"stroke-miterlimit\", \"stroke-opacity\", \"stroke-width\", \"text-rendering\",\n \"baseline-shift\", \"dominant-baseline\", \"glyph-orientation-horizontal\",\n \"glyph-orientation-vertical\", \"text-anchor\", \"writing-mode\",\n], propertyKeywords = keySet(propertyKeywords_);\n\nvar nonStandardPropertyKeywords_ = [\n \"accent-color\", \"aspect-ratio\", \"border-block\", \"border-block-color\", \"border-block-end\",\n \"border-block-end-color\", \"border-block-end-style\", \"border-block-end-width\",\n \"border-block-start\", \"border-block-start-color\", \"border-block-start-style\",\n \"border-block-start-width\", \"border-block-style\", \"border-block-width\",\n \"border-inline\", \"border-inline-color\", \"border-inline-end\",\n \"border-inline-end-color\", \"border-inline-end-style\",\n \"border-inline-end-width\", \"border-inline-start\", \"border-inline-start-color\",\n \"border-inline-start-style\", \"border-inline-start-width\",\n \"border-inline-style\", \"border-inline-width\", \"content-visibility\", \"margin-block\",\n \"margin-block-end\", \"margin-block-start\", \"margin-inline\", \"margin-inline-end\",\n \"margin-inline-start\", \"overflow-anchor\", \"overscroll-behavior\", \"padding-block\", \"padding-block-end\",\n \"padding-block-start\", \"padding-inline\", \"padding-inline-end\",\n \"padding-inline-start\", \"scroll-snap-stop\", \"scrollbar-3d-light-color\",\n \"scrollbar-arrow-color\", \"scrollbar-base-color\", \"scrollbar-dark-shadow-color\",\n \"scrollbar-face-color\", \"scrollbar-highlight-color\", \"scrollbar-shadow-color\",\n \"scrollbar-track-color\", \"searchfield-cancel-button\", \"searchfield-decoration\",\n \"searchfield-results-button\", \"searchfield-results-decoration\", \"shape-inside\", \"zoom\"\n], nonStandardPropertyKeywords = keySet(nonStandardPropertyKeywords_);\n\nvar fontProperties_ = [\n \"font-display\", \"font-family\", \"src\", \"unicode-range\", \"font-variant\",\n \"font-feature-settings\", \"font-stretch\", \"font-weight\", \"font-style\"\n], fontProperties = keySet(fontProperties_);\n\nvar counterDescriptors_ = [\n \"additive-symbols\", \"fallback\", \"negative\", \"pad\", \"prefix\", \"range\",\n \"speak-as\", \"suffix\", \"symbols\", \"system\"\n], counterDescriptors = keySet(counterDescriptors_);\n\nvar colorKeywords_ = [\n \"aliceblue\", \"antiquewhite\", \"aqua\", \"aquamarine\", \"azure\", \"beige\",\n \"bisque\", \"black\", \"blanchedalmond\", \"blue\", \"blueviolet\", \"brown\",\n \"burlywood\", \"cadetblue\", \"chartreuse\", \"chocolate\", \"coral\", \"cornflowerblue\",\n \"cornsilk\", \"crimson\", \"cyan\", \"darkblue\", \"darkcyan\", \"darkgoldenrod\",\n \"darkgray\", \"darkgreen\", \"darkgrey\", \"darkkhaki\", \"darkmagenta\", \"darkolivegreen\",\n \"darkorange\", \"darkorchid\", \"darkred\", \"darksalmon\", \"darkseagreen\",\n \"darkslateblue\", \"darkslategray\", \"darkslategrey\", \"darkturquoise\", \"darkviolet\",\n \"deeppink\", \"deepskyblue\", \"dimgray\", \"dimgrey\", \"dodgerblue\", \"firebrick\",\n \"floralwhite\", \"forestgreen\", \"fuchsia\", \"gainsboro\", \"ghostwhite\",\n \"gold\", \"goldenrod\", \"gray\", \"grey\", \"green\", \"greenyellow\", \"honeydew\",\n \"hotpink\", \"indianred\", \"indigo\", \"ivory\", \"khaki\", \"lavender\",\n \"lavenderblush\", \"lawngreen\", \"lemonchiffon\", \"lightblue\", \"lightcoral\",\n \"lightcyan\", \"lightgoldenrodyellow\", \"lightgray\", \"lightgreen\", \"lightgrey\", \"lightpink\",\n \"lightsalmon\", \"lightseagreen\", \"lightskyblue\", \"lightslategray\", \"lightslategrey\",\n \"lightsteelblue\", \"lightyellow\", \"lime\", \"limegreen\", \"linen\", \"magenta\",\n \"maroon\", \"mediumaquamarine\", \"mediumblue\", \"mediumorchid\", \"mediumpurple\",\n \"mediumseagreen\", \"mediumslateblue\", \"mediumspringgreen\", \"mediumturquoise\",\n \"mediumvioletred\", \"midnightblue\", \"mintcream\", \"mistyrose\", \"moccasin\",\n \"navajowhite\", \"navy\", \"oldlace\", \"olive\", \"olivedrab\", \"orange\", \"orangered\",\n \"orchid\", \"palegoldenrod\", \"palegreen\", \"paleturquoise\", \"palevioletred\",\n \"papayawhip\", \"peachpuff\", \"peru\", \"pink\", \"plum\", \"powderblue\",\n \"purple\", \"rebeccapurple\", \"red\", \"rosybrown\", \"royalblue\", \"saddlebrown\",\n \"salmon\", \"sandybrown\", \"seagreen\", \"seashell\", \"sienna\", \"silver\", \"skyblue\",\n \"slateblue\", \"slategray\", \"slategrey\", \"snow\", \"springgreen\", \"steelblue\", \"tan\",\n \"teal\", \"thistle\", \"tomato\", \"turquoise\", \"violet\", \"wheat\", \"white\",\n \"whitesmoke\", \"yellow\", \"yellowgreen\"\n], colorKeywords = keySet(colorKeywords_);\n\nvar valueKeywords_ = [\n \"above\", \"absolute\", \"activeborder\", \"additive\", \"activecaption\", \"afar\",\n \"after-white-space\", \"ahead\", \"alias\", \"all\", \"all-scroll\", \"alphabetic\", \"alternate\",\n \"always\", \"amharic\", \"amharic-abegede\", 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true, \"variable\": true, \"string\": true, \"regexp\": true};\n\nfunction HaxeLexical(indented, column, type, align, prev, info) {\n this.indented = indented;\n this.column = column;\n this.type = type;\n this.prev = prev;\n this.info = info;\n if (align != null) this.align = align;\n}\n\nfunction inScope(state, varname) {\n for (var v = state.localVars; v; v = v.next)\n if (v.name == varname) return true;\n}\n\nfunction parseHaxe(state, style, type, content, stream) {\n var cc = state.cc;\n // Communicate our context to the combinators.\n // (Less wasteful than consing up a hundred closures on every call.)\n cx.state = state; cx.stream = stream; cx.marked = null, cx.cc = cc;\n\n if (!state.lexical.hasOwnProperty(\"align\"))\n state.lexical.align = true;\n\n while(true) {\n var combinator = cc.length ? cc.pop() : statement;\n if (combinator(type, content)) {\n while(cc.length && cc[cc.length - 1].lex)\n cc.pop()();\n if (cx.marked) return cx.marked;\n if (type == \"variable\" && inScope(state, content)) return \"variableName.local\";\n if (type == \"variable\" && imported(state, content)) return \"variableName.special\";\n return style;\n }\n }\n}\n\nfunction imported(state, typename) {\n if (/[a-z]/.test(typename.charAt(0)))\n return false;\n var len = state.importedtypes.length;\n for (var i = 0; i= 0; i--) cx.cc.push(arguments[i]);\n}\nfunction cont() {\n pass.apply(null, arguments);\n return true;\n}\nfunction inList(name, list) {\n for (var v = list; v; v = v.next)\n if (v.name == name) return true;\n return false;\n}\nfunction register(varname) {\n var state = cx.state;\n if (state.context) {\n cx.marked = \"def\";\n if (inList(varname, state.localVars)) return;\n state.localVars = {name: varname, next: state.localVars};\n } else if (state.globalVars) {\n if (inList(varname, state.globalVars)) return;\n state.globalVars = {name: varname, next: state.globalVars};\n }\n}\n\n// Combinators\n\nvar defaultVars = {name: \"this\", next: null};\nfunction pushcontext() {\n if (!cx.state.context) cx.state.localVars = defaultVars;\n cx.state.context = {prev: cx.state.context, vars: cx.state.localVars};\n}\nfunction popcontext() {\n cx.state.localVars = cx.state.context.vars;\n cx.state.context = cx.state.context.prev;\n}\npopcontext.lex = true;\nfunction pushlex(type, info) {\n var result = function() {\n var state = cx.state;\n state.lexical = new HaxeLexical(state.indented, cx.stream.column(), type, null, state.lexical, info);\n };\n result.lex = true;\n return result;\n}\nfunction poplex() {\n var state = cx.state;\n if (state.lexical.prev) {\n if (state.lexical.type == \")\")\n state.indented = state.lexical.indented;\n state.lexical = state.lexical.prev;\n }\n}\npoplex.lex = true;\n\nfunction expect(wanted) {\n function f(type) {\n if (type == wanted) return cont();\n else if (wanted == \";\") return pass();\n else return cont(f);\n }\n return f;\n}\n\nfunction statement(type) {\n if (type == \"@\") return cont(metadef);\n if (type == \"var\") return cont(pushlex(\"vardef\"), vardef1, expect(\";\"), poplex);\n if (type == \"keyword a\") return cont(pushlex(\"form\"), expression, statement, poplex);\n if (type == \"keyword b\") return cont(pushlex(\"form\"), statement, poplex);\n if (type == \"{\") return cont(pushlex(\"}\"), pushcontext, block, poplex, popcontext);\n if (type == \";\") return cont();\n if (type == \"attribute\") return cont(maybeattribute);\n if (type == \"function\") return cont(functiondef);\n if (type == \"for\") return cont(pushlex(\"form\"), expect(\"(\"), pushlex(\")\"), forspec1, expect(\")\"),\n poplex, statement, poplex);\n if (type == \"variable\") return cont(pushlex(\"stat\"), maybelabel);\n if (type == \"switch\") return cont(pushlex(\"form\"), expression, pushlex(\"}\", \"switch\"), expect(\"{\"),\n block, poplex, poplex);\n if (type == \"case\") return cont(expression, expect(\":\"));\n if (type == \"default\") return cont(expect(\":\"));\n if (type == \"catch\") return cont(pushlex(\"form\"), pushcontext, expect(\"(\"), funarg, expect(\")\"),\n statement, poplex, popcontext);\n if (type == \"import\") return cont(importdef, expect(\";\"));\n if (type == \"typedef\") return cont(typedef);\n return pass(pushlex(\"stat\"), expression, expect(\";\"), poplex);\n}\nfunction expression(type) {\n if (atomicTypes.hasOwnProperty(type)) return cont(maybeoperator);\n if (type == \"type\" ) return cont(maybeoperator);\n if (type == \"function\") return cont(functiondef);\n if (type == \"keyword c\") return cont(maybeexpression);\n if (type == \"(\") return cont(pushlex(\")\"), maybeexpression, expect(\")\"), poplex, maybeoperator);\n if (type == \"operator\") return cont(expression);\n if (type == \"[\") return cont(pushlex(\"]\"), commasep(maybeexpression, \"]\"), poplex, maybeoperator);\n if (type == \"{\") return cont(pushlex(\"}\"), commasep(objprop, \"}\"), poplex, maybeoperator);\n return cont();\n}\nfunction maybeexpression(type) {\n if (type.match(/[;\\}\\)\\],]/)) return pass();\n return pass(expression);\n}\n\nfunction maybeoperator(type, value) {\n if (type == \"operator\" && /\\+\\+|--/.test(value)) return cont(maybeoperator);\n if (type == \"operator\" || type == \":\") return cont(expression);\n if (type == \";\") return;\n if (type == \"(\") return cont(pushlex(\")\"), commasep(expression, \")\"), poplex, maybeoperator);\n if (type == \".\") return cont(property, maybeoperator);\n if (type == \"[\") return cont(pushlex(\"]\"), expression, expect(\"]\"), poplex, maybeoperator);\n}\n\nfunction maybeattribute(type) {\n if (type == \"attribute\") return cont(maybeattribute);\n if (type == \"function\") return cont(functiondef);\n if (type == \"var\") return cont(vardef1);\n}\n\nfunction metadef(type) {\n if(type == \":\") return cont(metadef);\n if(type == \"variable\") return cont(metadef);\n if(type == \"(\") return cont(pushlex(\")\"), commasep(metaargs, \")\"), poplex, statement);\n}\nfunction metaargs(type) {\n if(type == \"variable\") return cont();\n}\n\nfunction importdef (type, value) {\n if(type == \"variable\" && /[A-Z]/.test(value.charAt(0))) { registerimport(value); return cont(); }\n else if(type == \"variable\" || type == \"property\" || type == \".\" || value == \"*\") return cont(importdef);\n}\n\nfunction typedef (type, value)\n{\n if(type == \"variable\" && /[A-Z]/.test(value.charAt(0))) { registerimport(value); return cont(); }\n else if (type == \"type\" && /[A-Z]/.test(value.charAt(0))) { return cont(); }\n}\n\nfunction maybelabel(type) {\n if (type == \":\") return cont(poplex, statement);\n return pass(maybeoperator, expect(\";\"), poplex);\n}\nfunction property(type) {\n if (type == \"variable\") {cx.marked = \"property\"; return cont();}\n}\nfunction objprop(type) {\n if (type == \"variable\") cx.marked = \"property\";\n if (atomicTypes.hasOwnProperty(type)) return cont(expect(\":\"), expression);\n}\nfunction commasep(what, end) {\n function proceed(type) {\n if (type == \",\") return cont(what, proceed);\n if (type == end) return cont();\n return cont(expect(end));\n }\n return function(type) {\n if (type == end) return cont();\n else return pass(what, proceed);\n };\n}\nfunction block(type) {\n if (type == \"}\") return cont();\n return pass(statement, block);\n}\nfunction vardef1(type, value) {\n if (type == \"variable\"){register(value); return cont(typeuse, vardef2);}\n return cont();\n}\nfunction vardef2(type, value) {\n if (value == \"=\") return cont(expression, vardef2);\n if (type == \",\") return cont(vardef1);\n}\nfunction forspec1(type, value) {\n if (type == \"variable\") {\n register(value);\n return cont(forin, expression)\n } else {\n return pass()\n }\n}\nfunction forin(_type, value) {\n if (value == \"in\") return cont();\n}\nfunction functiondef(type, value) {\n //function names starting with upper-case letters are recognised as types, so cludging them together here.\n if (type == \"variable\" || type == \"type\") 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[ MetaItem self Metavariable super crate Identifier ScopedIdentifier :: QualifiedScope AbstractType impl SelfType MetaType TypeIdentifier ScopedTypeIdentifier ScopeIdentifier TypeArgList TypeBinding = Lifetime String Escape Char Boolean Integer } { Block ; ConstItem Vis pub ( in ) const BoundIdentifier : UnsafeBlock unsafe AsyncBlock async move IfExpression if LetDeclaration let LiteralPattern ArithOp MetaPattern SelfPattern ScopedIdentifier TuplePattern ScopedTypeIdentifier , StructPattern FieldPatternList FieldPattern ref mut FieldIdentifier .. RefPattern SlicePattern CapturedPattern ReferencePattern & MutPattern RangePattern ... OrPattern MacroPattern ParenthesizedTokens TokenBinding Identifier TokenRepetition ArithOp BitOp LogicOp UpdateOp CompareOp -> => ArithOp BracketedTokens BracedTokens _ else MatchExpression match MatchBlock MatchArm Attribute Guard UnaryExpression ArithOp DerefOp LogicOp ReferenceExpression TryExpression BinaryExpression ArithOp ArithOp BitOp BitOp BitOp BitOp LogicOp LogicOp AssignmentExpression TypeCastExpression as ReturnExpression return RangeExpression CallExpression ArgList AwaitExpression await FieldExpression GenericFunction BreakExpression break LoopLabel ContinueExpression continue IndexExpression ArrayExpression TupleExpression MacroInvocation UnitExpression ClosureExpression ParamList Parameter Parameter ParenthesizedExpression StructExpression FieldInitializerList ShorthandFieldInitializer FieldInitializer BaseFieldInitializer MatchArm WhileExpression while LoopExpression loop ForExpression for MacroInvocation MacroDefinition macro_rules MacroRule EmptyStatement ModItem mod DeclarationList AttributeItem ForeignModItem extern StructItem struct TypeParamList ConstrainedTypeParameter TraitBounds HigherRankedTraitBound RemovedTraitBound OptionalTypeParameter ConstParameter WhereClause where LifetimeClause TypeBoundClause FieldDeclarationList FieldDeclaration OrderedFieldDeclarationList UnionItem union EnumItem enum EnumVariantList EnumVariant TypeItem type FunctionItem default fn ParamList Parameter SelfParameter VariadicParameter VariadicParameter ImplItem TraitItem trait AssociatedType LetDeclaration UseDeclaration use ScopedIdentifier UseAsClause ScopedIdentifier UseList ScopedUseList UseWildcard ExternCrateDeclaration StaticItem static ExpressionStatement ExpressionStatement GenericType FunctionType ForLifetimes ParamList VariadicParameter Parameter VariadicParameter Parameter ReferenceType PointerType TupleType UnitType ArrayType MacroInvocation EmptyType DynamicType dyn 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MacroName LineComment BlockComment PreprocDirective #include String EscapeSequence SystemLibString Identifier ArgumentList ( ConditionalExpression AssignmentExpression CallExpression PrimitiveType FieldExpression FieldIdentifier DestructorName TemplateMethod ScopedFieldIdentifier NamespaceIdentifier TemplateType TypeIdentifier ScopedTypeIdentifier ScopedNamespaceIdentifier :: NamespaceIdentifier TypeIdentifier TemplateArgumentList < TypeDescriptor const volatile restrict _Atomic mutable constexpr constinit consteval StructSpecifier struct MsDeclspecModifier __declspec ) Attribute AttributeName Identifier AttributeArgs { } [ ] UpdateOp ArithOp ArithOp ArithOp LogicOp BitOp BitOp BitOp CompareOp CompareOp CompareOp > CompareOp BitOp UpdateOp , Number CharLiteral AttributeArgs VirtualSpecifier BaseClassClause Access virtual FieldDeclarationList FieldDeclaration extern static register inline thread_local AttributeSpecifier __attribute__ PointerDeclarator MsBasedModifier __based MsPointerModifier FunctionDeclarator ParameterList ParameterDeclaration PointerDeclarator FunctionDeclarator Noexcept noexcept RequiresClause requires True False ParenthesizedExpression CommaExpression LambdaExpression LambdaCaptureSpecifier TemplateParameterList OptionalParameterDeclaration TypeParameterDeclaration typename class VariadicParameterDeclaration VariadicDeclarator ReferenceDeclarator OptionalTypeParameterDeclaration VariadicTypeParameterDeclaration TemplateTemplateParameterDeclaration template AbstractFunctionDeclarator AbstractPointerDeclarator AbstractArrayDeclarator AbstractParenthesizedDeclarator AbstractReferenceDeclarator ThrowSpecifier throw TrailingReturnType CompoundStatement FunctionDefinition MsCallModifier TryStatement try CatchClause catch LinkageSpecification Declaration InitDeclarator InitializerList InitializerPair SubscriptDesignator FieldDesignator ExportDeclaration export ImportDeclaration import ModuleName PartitionName HeaderName CaseStatement case default LabeledStatement StatementIdentifier ExpressionStatement IfStatement if ConditionClause Declaration else SwitchStatement switch DoStatement do while WhileStatement ForStatement for ReturnStatement return BreakStatement break ContinueStatement continue GotoStatement goto CoReturnStatement co_return CoYieldStatement co_yield AttributeStatement ForRangeLoop AliasDeclaration using TypeDefinition typedef PointerDeclarator FunctionDeclarator ArrayDeclarator ParenthesizedDeclarator ThrowStatement NamespaceDefinition namespace ScopedIdentifier Identifier OperatorName operator ArithOp BitOp CompareOp LogicOp new delete co_await ConceptDefinition concept UsingDeclaration enum StaticAssertDeclaration static_assert ConcatenatedString TemplateDeclaration FriendDeclaration friend union FunctionDefinition ExplicitFunctionSpecifier explicit FieldInitializerList FieldInitializer DefaultMethodClause DeleteMethodClause FunctionDefinition OperatorCast operator TemplateInstantiation FunctionDefinition FunctionDefinition Declaration ModuleDeclaration module RequiresExpression RequirementList SimpleRequirement TypeRequirement CompoundRequirement ReturnTypeRequirement ConstraintConjuction LogicOp ConstraintDisjunction LogicOp ArrayDeclarator ParenthesizedDeclarator ReferenceDeclarator TemplateFunction OperatorName StructuredBindingDeclarator ArrayDeclarator ParenthesizedDeclarator ReferenceDeclarator BitfieldClause FunctionDefinition FunctionDefinition Declaration FunctionDefinition Declaration AccessSpecifier UnionSpecifier ClassSpecifier EnumSpecifier SizedTypeSpecifier TypeSize EnumeratorList Enumerator DependentType Decltype decltype auto PlaceholderTypeSpecifier ParameterPackExpansion ParameterPackExpansion FieldIdentifier PointerExpression SubscriptExpression BinaryExpression ArithOp LogicOp LogicOp BitOp UnaryExpression LogicOp BitOp UpdateExpression CastExpression SizeofExpression sizeof CoAwaitExpression CompoundLiteralExpression NULL NewExpression new NewDeclarator DeleteExpression delete ParameterPackExpansion nullptr this UserDefinedLiteral ParamPack #define PreprocArg #if #ifdef #ifndef #else #endif #elif PreprocDirectiveName Macro 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{ ExternalTokenizer, LRParser } from '@lezer/lr';\nimport { styleTags, tags } from '@lezer/highlight';\n\n// This file was generated by lezer-generator. 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You probably shouldn't edit it.\nconst spec_identifier = {__proto__:null,bool:34, char:34, int:34, float:34, double:34, void:34, size_t:34, ssize_t:34, intptr_t:34, uintptr_t:34, charptr_t:34, int8_t:34, int16_t:34, int32_t:34, int64_t:34, uint8_t:34, uint16_t:34, uint32_t:34, uint64_t:34, char8_t:34, char16_t:34, char32_t:34, char64_t:34, const:68, volatile:70, restrict:72, _Atomic:74, mutable:76, constexpr:78, constinit:80, consteval:82, struct:86, __declspec:90, final:148, override:148, public:152, private:152, protected:152, virtual:154, extern:160, static:162, register:164, inline:166, thread_local:168, __attribute__:172, __based:178, __restrict:180, __uptr:180, __sptr:180, _unaligned:180, __unaligned:180, noexcept:194, requires:198, TRUE:784, true:784, FALSE:786, false:786, typename:218, class:220, template:234, throw:248, __cdecl:256, __clrcall:256, __stdcall:256, __fastcall:256, __thiscall:256, __vectorcall:256, try:260, catch:264, export:282, import:286, case:296, default:298, if:308, else:314, switch:318, do:322, while:324, for:330, return:334, break:338, continue:342, goto:346, co_return:350, co_yield:354, using:362, typedef:366, namespace:380, new:398, delete:400, co_await:402, concept:406, enum:410, static_assert:414, friend:422, union:424, explicit:430, operator:444, module:456, signed:518, unsigned:518, long:518, short:518, decltype:528, auto:530, sizeof:566, NULL:572, nullptr:586, this:588};\nconst spec_ = {__proto__:null,\"<\":131};\nconst spec_templateArgsEnd = {__proto__:null,\">\":135};\nconst spec_scopedIdentifier = {__proto__:null,operator:388, new:576, delete:582};\nconst parser = LRParser.deserialize({\n version: 14,\n states: 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MacroName LineComment BlockComment PreprocDirective #include String EscapeSequence SystemLibString Identifier ArgumentList ( ConditionalExpression AssignmentExpression CallExpression PrimitiveType FieldExpression FieldIdentifier DestructorName TemplateMethod ScopedFieldIdentifier NamespaceIdentifier TemplateType TypeIdentifier ScopedTypeIdentifier ScopedNamespaceIdentifier :: NamespaceIdentifier TypeIdentifier TemplateArgumentList < TypeDescriptor const volatile restrict _Atomic mutable constexpr constinit consteval StructSpecifier struct MsDeclspecModifier __declspec ) Attribute AttributeName Identifier AttributeArgs { } [ ] UpdateOp ArithOp ArithOp ArithOp LogicOp BitOp BitOp BitOp CompareOp CompareOp CompareOp > CompareOp BitOp UpdateOp , Number CharLiteral AttributeArgs VirtualSpecifier BaseClassClause Access virtual FieldDeclarationList FieldDeclaration extern static register inline thread_local AttributeSpecifier __attribute__ PointerDeclarator MsBasedModifier __based MsPointerModifier FunctionDeclarator ParameterList ParameterDeclaration PointerDeclarator FunctionDeclarator Noexcept noexcept RequiresClause requires True False ParenthesizedExpression CommaExpression LambdaExpression LambdaCaptureSpecifier TemplateParameterList OptionalParameterDeclaration TypeParameterDeclaration typename class VariadicParameterDeclaration VariadicDeclarator ReferenceDeclarator OptionalTypeParameterDeclaration VariadicTypeParameterDeclaration TemplateTemplateParameterDeclaration template AbstractFunctionDeclarator AbstractPointerDeclarator AbstractArrayDeclarator AbstractParenthesizedDeclarator AbstractReferenceDeclarator ThrowSpecifier throw TrailingReturnType CompoundStatement FunctionDefinition MsCallModifier TryStatement try CatchClause catch LinkageSpecification Declaration InitDeclarator InitializerList InitializerPair SubscriptDesignator FieldDesignator ExportDeclaration export ImportDeclaration import ModuleName PartitionName HeaderName CaseStatement case default LabeledStatement StatementIdentifier ExpressionStatement IfStatement if ConditionClause Declaration else SwitchStatement switch DoStatement do while WhileStatement ForStatement for ReturnStatement return BreakStatement break ContinueStatement continue GotoStatement goto CoReturnStatement co_return CoYieldStatement co_yield AttributeStatement ForRangeLoop AliasDeclaration using TypeDefinition typedef PointerDeclarator FunctionDeclarator ArrayDeclarator ParenthesizedDeclarator ThrowStatement NamespaceDefinition namespace ScopedIdentifier Identifier OperatorName operator ArithOp BitOp CompareOp LogicOp new delete co_await ConceptDefinition concept UsingDeclaration enum StaticAssertDeclaration static_assert ConcatenatedString TemplateDeclaration FriendDeclaration friend union FunctionDefinition ExplicitFunctionSpecifier explicit FieldInitializerList FieldInitializer DefaultMethodClause DeleteMethodClause FunctionDefinition OperatorCast operator TemplateInstantiation FunctionDefinition FunctionDefinition Declaration ModuleDeclaration module RequiresExpression RequirementList SimpleRequirement TypeRequirement CompoundRequirement ReturnTypeRequirement ConstraintConjuction LogicOp ConstraintDisjunction LogicOp ArrayDeclarator ParenthesizedDeclarator ReferenceDeclarator TemplateFunction OperatorName StructuredBindingDeclarator ArrayDeclarator ParenthesizedDeclarator ReferenceDeclarator BitfieldClause FunctionDefinition FunctionDefinition Declaration FunctionDefinition Declaration AccessSpecifier UnionSpecifier ClassSpecifier EnumSpecifier SizedTypeSpecifier TypeSize EnumeratorList Enumerator DependentType Decltype decltype auto PlaceholderTypeSpecifier ParameterPackExpansion ParameterPackExpansion FieldIdentifier PointerExpression SubscriptExpression BinaryExpression ArithOp LogicOp LogicOp BitOp UnaryExpression LogicOp BitOp UpdateExpression CastExpression SizeofExpression sizeof CoAwaitExpression CompoundLiteralExpression NULL NewExpression new NewDeclarator DeleteExpression delete ParameterPackExpansion nullptr this UserDefinedLiteral ParamPack #define PreprocArg #if #ifdef #ifndef #else #endif #elif PreprocDirectiveName Macro Program\",\n maxTerm: 425,\n nodeProps: [\n [\"group\", -35,1,8,11,14,15,16,18,71,72,100,101,102,104,191,208,229,242,243,270,271,272,277,280,281,282,284,285,286,287,290,292,293,294,295,296,\"Expression\",-13,17,24,25,26,42,255,256,257,258,262,263,265,266,\"Type\",-19,126,129,147,150,152,153,158,160,163,164,166,168,170,172,174,176,178,179,188,\"Statement\"]\n ],\n propSources: [cppHighlighting],\n skippedNodes: [0,3,4,5,6,7,10,297,298,299,300,301,302,303,304,305,306,347,348],\n repeatNodeCount: 41,\n tokenData: 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state.tokenize(stream, state);\n }\n}\n\nfunction tokenComment(stream, state) {\n var maybeEnd = false, ch;\n while ((ch = stream.next()) != null) {\n if (maybeEnd && ch == '>') {\n state.tokenize = tokenBase;\n break;\n }\n maybeEnd = (ch === '#');\n }\n return 'comment';\n}\n\nfunction tokenVariable(stream, state) {\n var ch = stream.peek();\n if (stream.eat('{')) {\n state.tokenize = tokenVariableWithBraces;\n return tokenVariableWithBraces(stream, state);\n } else if (ch != undefined && ch.match(varNames)) {\n stream.eatWhile(varNames);\n state.tokenize = tokenBase;\n return 'variable';\n } else {\n state.tokenize = tokenBase;\n return 'error';\n }\n}\n\nfunction tokenVariableWithBraces(stream, state) {\n var ch;\n while ((ch = stream.next()) != null) {\n if (ch === '}') {\n state.tokenize = tokenBase;\n break;\n }\n }\n return 'variable';\n}\n\nfunction tokenMultiString(stream, state) {\n var quote = state.startQuote;\n if (stream.sol() && stream.match(new RegExp(quote + '@'))) 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s_eventually s_nexttime \" +\n \"s_until s_until_with scalared sequence shortint shortreal showcancelled signed small soft solve specify \" +\n \"specparam static string strong strong0 strong1 struct super supply0 supply1 sync_accept_on sync_reject_on \" +\n \"table tagged task this throughout time timeprecision timeunit tran tranif0 tranif1 tri tri0 tri1 triand trior \" +\n \"trireg type typedef union unique unique0 unsigned until until_with untyped use uwire var vectored virtual void \" +\n \"wait wait_order wand weak weak0 weak1 while wildcard wire with within wor xnor xor\");\n\n /** Operators from IEEE 1800-2012\n unary_operator ::=\n + | - | ! | ~ | & | ~& | | | ~| | ^ | ~^ | ^~\n binary_operator ::=\n + | - | * | / | % | == | != | === | !== | ==? | !=? | && | || | **\n | < | <= | > | >= | & | | | ^ | ^~ | ~^ | >> | << | >>> | <<<\n | -> | <->\n inc_or_dec_operator ::= ++ | --\n unary_module_path_operator ::=\n ! | ~ | & | ~& | | | ~| | ^ | ~^ | ^~\n binary_module_path_operator 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tokenComment(stream, state) {\n var maybeEnd = false, ch;\n while (ch = stream.next()) {\n if (ch == \"/\" && maybeEnd) {\n state.tokenize = tokenBase;\n break;\n }\n maybeEnd = (ch == \"*\");\n }\n return \"comment\";\n }\n\n function Context(indented, column, type, align, prev) {\n this.indented = indented;\n this.column = column;\n this.type = type;\n this.align = align;\n this.prev = prev;\n }\n function pushContext(state, col, type) {\n var indent = state.indented;\n var c = new Context(indent, col, type, null, state.context);\n return state.context = c;\n }\n function popContext(state) {\n var t = state.context.type;\n if (t == \")\" || t == \"]\" || t == \"}\") {\n state.indented = state.context.indented;\n }\n return state.context = state.context.prev;\n }\n\n function isClosing(text, contextClosing) {\n if (text == contextClosing) {\n return true;\n } else {\n // contextClosing may be multiple keywords separated by ;\n var closingKeywords = contextClosing.split(\";\");\n for (var i in closingKeywords) {\n if (text == closingKeywords[i]) {\n return true;\n }\n }\n return false;\n }\n }\n\n function buildElectricInputRegEx() {\n // Reindentation should occur on any bracket char: {}()[]\n // or on a match of any of the block closing keywords, at\n // the end of a line\n var allClosings = [];\n for (var i in openClose) {\n if (openClose[i]) {\n var closings = openClose[i].split(\";\");\n for (var j in closings) {\n allClosings.push(closings[j]);\n }\n }\n }\n var re = new RegExp(\"[{}()\\\\[\\\\]]|(\" + allClosings.join(\"|\") + \")$\");\n return re;\n }\n\n // Interface\n return {\n name: \"verilog\",\n\n startState: function(indentUnit) {\n var state = {\n tokenize: null,\n context: new Context(-indentUnit, 0, \"top\", false),\n indented: 0,\n startOfLine: true\n };\n if (hooks.startState) hooks.startState(state);\n return state;\n },\n\n token: function(stream, state) {\n var ctx = state.context;\n if (stream.sol()) {\n if (ctx.align == null) ctx.align = false;\n state.indented = stream.indentation();\n state.startOfLine = true;\n }\n if (hooks.token) {\n // Call hook, with an optional return value of a style to override verilog styling.\n var style = hooks.token(stream, state);\n if (style !== undefined) {\n return style;\n }\n }\n if (stream.eatSpace()) return null;\n curPunc = null;\n curKeyword = null;\n var style = (state.tokenize || tokenBase)(stream, state);\n if (style == \"comment\" || style == \"meta\" || style == \"variable\") return style;\n if (ctx.align == null) ctx.align = true;\n\n if (curPunc == ctx.type) {\n popContext(state);\n } else if ((curPunc == \";\" && ctx.type == \"statement\") ||\n (ctx.type && isClosing(curKeyword, ctx.type))) {\n ctx = popContext(state);\n while (ctx && ctx.type == \"statement\") ctx = popContext(state);\n } else if (curPunc == \"{\") {\n pushContext(state, stream.column(), \"}\");\n } else if (curPunc == \"[\") {\n pushContext(state, stream.column(), \"]\");\n } else if (curPunc == \"(\") {\n pushContext(state, stream.column(), \")\");\n } else if (ctx && ctx.type == \"endcase\" && curPunc == \":\") {\n pushContext(state, stream.column(), \"statement\");\n } else if (curPunc == \"newstatement\") {\n pushContext(state, stream.column(), \"statement\");\n } else if (curPunc == \"newblock\") {\n if (curKeyword == \"function\" && ctx && (ctx.type == \"statement\" || ctx.type == \"endgroup\")) {\n // The 'function' keyword can appear in some other contexts where it actually does not\n // indicate a function (import/export DPI and covergroup definitions).\n // Do nothing in this case\n } else if (curKeyword == \"task\" && ctx && ctx.type == \"statement\") {\n // Same thing for task\n } else {\n var close = openClose[curKeyword];\n pushContext(state, stream.column(), close);\n }\n }\n\n state.startOfLine = false;\n return style;\n },\n\n indent: function(state, textAfter, cx) {\n if (state.tokenize != tokenBase && state.tokenize != null) return null;\n if (hooks.indent) {\n var fromHook = hooks.indent(state);\n if (fromHook >= 0) return fromHook;\n }\n var ctx = state.context, firstChar = textAfter && textAfter.charAt(0);\n if (ctx.type == \"statement\" && firstChar == \"}\") ctx = ctx.prev;\n var closing = false;\n var possibleClosing = textAfter.match(closingBracketOrWord);\n if (possibleClosing)\n closing = isClosing(possibleClosing[0], ctx.type);\n if (ctx.type == \"statement\") return ctx.indented + (firstChar == \"{\" ? 0 : statementIndentUnit || cx.unit);\n else if (closingBracket.test(ctx.type) && ctx.align && !dontAlignCalls) return ctx.column + (closing ? 0 : 1);\n else if (ctx.type == \")\" && !closing) return ctx.indented + (statementIndentUnit || cx.unit);\n else return ctx.indented + (closing ? 0 : cx.unit);\n },\n\n languageData: {\n indentOnInput: buildElectricInputRegEx(),\n commentTokens: {line: \"//\", block: {open: \"/*\", close: \"*/\"}}\n }\n };\n};\n\nexport const verilog = mkVerilog({})\n\n// TL-Verilog mode.\n// See tl-x.org for language spec.\n// See the mode in action at makerchip.com.\n// Contact: steve.hoover@redwoodeda.com\n\n// TLV Identifier prefixes.\n// Note that sign is not treated separately, so \"+/-\" versions of numeric identifiers\n// are included.\nvar tlvIdentifierStyle = {\n \"|\": \"link\",\n \">\": \"property\", // Should condition this off for > TLV 1c.\n \"$\": \"variable\",\n \"$$\": \"variable\",\n \"?$\": \"qualifier\",\n \"?*\": \"qualifier\",\n \"-\": \"contentSeparator\",\n \"/\": \"property\",\n \"/-\": \"property\",\n \"@\": \"variableName.special\",\n \"@-\": \"variableName.special\",\n \"@++\": \"variableName.special\",\n \"@+=\": \"variableName.special\",\n \"@+=-\": \"variableName.special\",\n \"@--\": \"variableName.special\",\n \"@-=\": \"variableName.special\",\n \"%+\": \"tag\",\n \"%-\": \"tag\",\n \"%\": \"tag\",\n \">>\": \"tag\",\n \"<<\": \"tag\",\n \"<>\": \"tag\",\n \"#\": \"tag\", // Need to choose a style for this.\n \"^\": \"attribute\",\n \"^^\": \"attribute\",\n \"^!\": \"attribute\",\n \"*\": \"variable\",\n \"**\": \"variable\",\n \"\\\\\": \"keyword\",\n \"\\\"\": \"comment\"\n};\n\n// Lines starting with these characters define scope (result in indentation).\nvar tlvScopePrefixChars = {\n \"/\": \"beh-hier\",\n \">\": \"beh-hier\",\n \"-\": \"phys-hier\",\n \"|\": \"pipe\",\n \"?\": \"when\",\n \"@\": \"stage\",\n \"\\\\\": \"keyword\"\n};\nvar tlvIndentUnit = 3;\nvar tlvTrackStatements = false;\nvar tlvIdentMatch = /^([~!@#\\$%\\^&\\*-\\+=\\?\\/\\\\\\|'\"<>]+)([\\d\\w_]*)/; // Matches an identifier.\n// Note that ':' is excluded, because of it's use in [:].\nvar tlvLineIndentationMatch = /^[! ] */;\nvar tlvCommentMatch = /^\\/[\\/\\*]/;\n\nexport const tlv = mkVerilog({\n hooks: {\n electricInput: false,\n\n // Return undefined for verilog tokenizing, or style for TLV token (null not used).\n // Standard CM styles are used for most formatting, but some TL-Verilog-specific highlighting\n // can be enabled with the 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state.indented;\n var depth = indented / tlvIndentUnit;\n if (depth <= state.tlvIndentationStyle.length) {\n // not deeper than current scope\n\n var blankline = stream.string.length == indented;\n var chPos = depth * tlvIndentUnit;\n if (chPos < stream.string.length) {\n var bodyString = stream.string.slice(chPos);\n var ch = bodyString[0];\n if (tlvScopePrefixChars[ch] && ((match = bodyString.match(tlvIdentMatch)) &&\n tlvIdentifierStyle[match[1]])) {\n // This line begins scope.\n // Next line gets indented one level.\n indented += tlvIndentUnit;\n // Style the next level of indentation (except non-region keyword identifiers,\n // which are statements themselves)\n if (!(ch == \"\\\\\" && chPos > 0)) {\n state.tlvIndentationStyle[depth] = tlvScopePrefixChars[ch];\n if (tlvTrackStatements) {state.statementComment = false;}\n depth++;\n }\n }\n }\n // Clear out deeper indentation levels unless line is blank.\n if (!blankline) {\n while (state.tlvIndentationStyle.length > depth) {\n 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block comment.\n if (stream.match(/^.*?\\*\\//)) {\n // Exit block comment.\n state.tlvInBlockComment = false;\n if (tlvTrackStatements && !stream.eol()) {\n // Anything after comment is assumed to be real statement content.\n state.statementComment = false;\n }\n } else {\n stream.skipToEnd();\n }\n style = \"comment\";\n } else if ((match = stream.match(tlvCommentMatch)) && !state.tlvInBlockComment) {\n // Start comment.\n if (match[0] == \"//\") {\n // Line comment.\n stream.skipToEnd();\n } else {\n // Block comment.\n state.tlvInBlockComment = true;\n }\n style = \"comment\";\n } else if (match = stream.match(tlvIdentMatch)) {\n // looks like an identifier (or identifier prefix)\n var prefix = match[1];\n var mnemonic = match[2];\n if (// is identifier prefix\n tlvIdentifierStyle.hasOwnProperty(prefix) &&\n // has mnemonic or we're at the end of the line (maybe it hasn't been typed yet)\n (mnemonic.length > 0 || stream.eol())) {\n style = tlvIdentifierStyle[prefix];\n } else {\n 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0\n return function(stream, state, prev) {\n var inner = tokenBase(stream, state, prev)\n if (inner == \"punctuation\") {\n if (stream.current() == \"(\") ++depth\n else if (stream.current() == \")\") {\n if (depth == 0) {\n stream.backUp(1)\n state.tokenize.pop()\n return state.tokenize[state.tokenize.length - 1](stream, state)\n }\n else --depth\n }\n }\n return inner\n }\n}\n\nfunction tokenString(openQuote, stream, state) {\n var singleLine = openQuote.length == 1\n var ch, escaped = false\n while (ch = stream.peek()) {\n if (escaped) {\n stream.next()\n if (ch == \"(\") {\n state.tokenize.push(tokenUntilClosingParen())\n return \"string\"\n }\n escaped = false\n } else if (stream.match(openQuote)) {\n state.tokenize.pop()\n return \"string\"\n } else {\n stream.next()\n escaped = ch == \"\\\\\"\n }\n }\n if (singleLine) {\n state.tokenize.pop()\n }\n return \"string\"\n}\n\nfunction tokenComment(stream, state) {\n var ch\n while (ch = stream.next()) {\n if (ch === \"/\" && stream.eat(\"*\")) {\n state.tokenize.push(tokenComment)\n } else if (ch === \"*\" && stream.eat(\"/\")) {\n state.tokenize.pop()\n break\n }\n }\n return \"comment\"\n}\n\nfunction Context(prev, align, indented) {\n this.prev = prev\n this.align = align\n this.indented = indented\n}\n\nfunction pushContext(state, stream) {\n var align = stream.match(/^\\s*($|\\/[\\/\\*]|[)}\\]])/, false) ? null : stream.column() + 1\n state.context = new Context(state.context, align, state.indented)\n}\n\nfunction popContext(state) {\n if (state.context) {\n state.indented = state.context.indented\n state.context = state.context.prev\n }\n}\n\nexport const swift = {\n name: \"swift\",\n startState: function() {\n return {\n prev: null,\n context: null,\n indented: 0,\n tokenize: []\n }\n },\n\n token: function(stream, state) {\n var prev = state.prev\n state.prev = null\n var tokenize = state.tokenize[state.tokenize.length - 1] || tokenBase\n var style = tokenize(stream, state, prev)\n if (!style || style == \"comment\") state.prev = prev\n else if (!state.prev) state.prev = style\n\n if (style == \"punctuation\") {\n var bracket = /[\\(\\[\\{]|([\\]\\)\\}])/.exec(stream.current())\n if (bracket) (bracket[1] ? popContext : pushContext)(state, stream)\n }\n\n return style\n },\n\n indent: function(state, textAfter, iCx) {\n var cx = state.context\n if (!cx) return 0\n var closing = /^[\\]\\}\\)]/.test(textAfter)\n if (cx.align != null) return cx.align - (closing ? 1 : 0)\n return cx.indented + (closing ? 0 : iCx.unit)\n },\n\n languageData: {\n indentOnInput: /^\\s*[\\)\\}\\]]$/,\n commentTokens: {line: \"//\", block: {open: \"/*\", close: \"*/\"}},\n closeBrackets: {brackets: [\"(\", \"[\", \"{\", \"'\", '\"', \"`\"]}\n 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function sql(parserConfig) {\n var client = parserConfig.client || {},\n atoms = parserConfig.atoms || {\"false\": true, \"true\": true, \"null\": true},\n builtin = parserConfig.builtin || set(defaultBuiltin),\n keywords = parserConfig.keywords || set(sqlKeywords),\n operatorChars = parserConfig.operatorChars || /^[*+\\-%<>!=&|~^\\/]/,\n support = parserConfig.support || {},\n hooks = parserConfig.hooks || {},\n dateSQL = parserConfig.dateSQL || {\"date\" : true, \"time\" : true, \"timestamp\" : true},\n backslashStringEscapes = parserConfig.backslashStringEscapes !== false,\n brackets = parserConfig.brackets || /^[\\{}\\(\\)\\[\\]]/,\n punctuation = parserConfig.punctuation || /^[;.,:]/\n\n function tokenBase(stream, state) {\n var ch = stream.next();\n\n // call hooks from the mime type\n if (hooks[ch]) {\n var result = hooks[ch](stream, state);\n if (result !== false) return result;\n }\n\n if (support.hexNumber &&\n ((ch == \"0\" && stream.match(/^[xX][0-9a-fA-F]+/))\n || (ch == \"x\" || ch == \"X\") && stream.match(/^'[0-9a-fA-F]*'/))) {\n // hex\n // ref: http://dev.mysql.com/doc/refman/5.5/en/hexadecimal-literals.html\n return \"number\";\n } else if (support.binaryNumber &&\n (((ch == \"b\" || ch == \"B\") && stream.match(/^'[01]+'/))\n || (ch == \"0\" && stream.match(/^b[01]*/)))) {\n // bitstring\n // ref: http://dev.mysql.com/doc/refman/5.5/en/bit-field-literals.html\n return \"number\";\n } else if (ch.charCodeAt(0) > 47 && ch.charCodeAt(0) < 58) {\n // numbers\n // ref: http://dev.mysql.com/doc/refman/5.5/en/number-literals.html\n stream.match(/^[0-9]*(\\.[0-9]+)?([eE][-+]?[0-9]+)?/);\n support.decimallessFloat && stream.match(/^\\.(?!\\.)/);\n return \"number\";\n } else if (ch == \"?\" && (stream.eatSpace() || stream.eol() || stream.eat(\";\"))) {\n // placeholders\n return \"macroName\";\n } else if (ch == \"'\" || (ch == '\"' && support.doubleQuote)) {\n // strings\n // ref: http://dev.mysql.com/doc/refman/5.5/en/string-literals.html\n state.tokenize = tokenLiteral(ch);\n return state.tokenize(stream, state);\n } else if ((((support.nCharCast && (ch == \"n\" || ch == \"N\"))\n || (support.charsetCast && ch == \"_\" && stream.match(/[a-z][a-z0-9]*/i)))\n && (stream.peek() == \"'\" || stream.peek() == '\"'))) {\n // charset casting: _utf8'str', N'str', n'str'\n // ref: http://dev.mysql.com/doc/refman/5.5/en/string-literals.html\n return \"keyword\";\n } else if (support.escapeConstant && (ch == \"e\" || ch == \"E\")\n && (stream.peek() == \"'\" || (stream.peek() == '\"' && support.doubleQuote))) {\n // escape constant: E'str', e'str'\n // ref: https://www.postgresql.org/docs/current/sql-syntax-lexical.html#SQL-SYNTAX-STRINGS-ESCAPE\n state.tokenize = function(stream, state) {\n return (state.tokenize = tokenLiteral(stream.next(), true))(stream, state);\n }\n return \"keyword\";\n } else if (support.commentSlashSlash && ch == \"/\" && stream.eat(\"/\")) {\n // 1-line comment\n stream.skipToEnd();\n return \"comment\";\n } else if ((support.commentHash && ch == \"#\")\n || (ch == \"-\" && stream.eat(\"-\") && (!support.commentSpaceRequired || stream.eat(\" \")))) {\n // 1-line comments\n // ref: https://kb.askmonty.org/en/comment-syntax/\n stream.skipToEnd();\n return \"comment\";\n } else if (ch == \"/\" && stream.eat(\"*\")) {\n // multi-line comments\n // ref: https://kb.askmonty.org/en/comment-syntax/\n state.tokenize = tokenComment(1);\n return state.tokenize(stream, state);\n } else if (ch == \".\") {\n // .1 for 0.1\n if (support.zerolessFloat && stream.match(/^(?:\\d+(?:e[+-]?\\d+)?)/i))\n return \"number\";\n if (stream.match(/^\\.+/))\n return null\n // .table_name (ODBC)\n // // ref: http://dev.mysql.com/doc/refman/5.6/en/identifier-qualifiers.html\n if (support.ODBCdotTable && stream.match(/^[\\w\\d_$#]+/))\n return \"type\";\n } else if (operatorChars.test(ch)) {\n // operators\n stream.eatWhile(operatorChars);\n return \"operator\";\n } else if (brackets.test(ch)) {\n // brackets\n return \"bracket\";\n } else if (punctuation.test(ch)) {\n // punctuation\n stream.eatWhile(punctuation);\n return \"punctuation\";\n } else if (ch == '{' &&\n (stream.match(/^( )*(d|D|t|T|ts|TS)( )*'[^']*'( )*}/) || stream.match(/^( )*(d|D|t|T|ts|TS)( )*\"[^\"]*\"( )*}/))) {\n // dates (weird ODBC syntax)\n // ref: http://dev.mysql.com/doc/refman/5.5/en/date-and-time-literals.html\n return \"number\";\n } else {\n stream.eatWhile(/^[_\\w\\d]/);\n var word = stream.current().toLowerCase();\n // dates (standard SQL syntax)\n // ref: http://dev.mysql.com/doc/refman/5.5/en/date-and-time-literals.html\n if (dateSQL.hasOwnProperty(word) && (stream.match(/^( )+'[^']*'/) || stream.match(/^( )+\"[^\"]*\"/)))\n return \"number\";\n if (atoms.hasOwnProperty(word)) return \"atom\";\n if (builtin.hasOwnProperty(word)) return \"type\";\n if (keywords.hasOwnProperty(word)) return \"keyword\";\n if (client.hasOwnProperty(word)) return \"builtin\";\n return null;\n }\n }\n\n // 'string', with char specified in quote escaped by '\\'\n function tokenLiteral(quote, backslashEscapes) {\n return function(stream, state) {\n var escaped = false, ch;\n while ((ch = stream.next()) != null) {\n if (ch == quote && !escaped) {\n state.tokenize = tokenBase;\n break;\n }\n escaped = (backslashStringEscapes || backslashEscapes) && !escaped && ch == \"\\\\\";\n }\n return \"string\";\n };\n }\n function tokenComment(depth) {\n return function(stream, state) {\n var m = stream.match(/^.*?(\\/\\*|\\*\\/)/)\n if (!m) stream.skipToEnd()\n else if (m[1] == \"/*\") state.tokenize = tokenComment(depth + 1)\n else if (depth > 1) state.tokenize = tokenComment(depth - 1)\n else state.tokenize = tokenBase\n return \"comment\"\n }\n }\n\n function pushContext(stream, state, type) {\n state.context = {\n prev: state.context,\n indent: stream.indentation(),\n col: stream.column(),\n type: type\n };\n }\n\n function popContext(state) {\n state.indent = state.context.indent;\n state.context = state.context.prev;\n }\n\n return {\n name: \"sql\",\n\n startState: function() {\n return {tokenize: tokenBase, context: null};\n },\n\n token: function(stream, state) {\n if (stream.sol()) {\n if (state.context && state.context.align == null)\n state.context.align = false;\n }\n if (state.tokenize == tokenBase && stream.eatSpace()) return null;\n\n var style = state.tokenize(stream, state);\n if (style == \"comment\") return style;\n\n if (state.context && state.context.align == null)\n state.context.align = true;\n\n var tok = stream.current();\n if (tok == \"(\")\n pushContext(stream, state, \")\");\n else if (tok == \"[\")\n pushContext(stream, state, \"]\");\n else if (state.context && state.context.type == tok)\n popContext(state);\n return style;\n },\n\n indent: function(state, textAfter, iCx) {\n var cx = state.context;\n if (!cx) return null;\n var closing = textAfter.charAt(0) == cx.type;\n if (cx.align) return cx.col + (closing ? 0 : 1);\n else return cx.indent + (closing ? 0 : iCx.unit);\n },\n\n languageData: {\n commentTokens: {\n line: support.commentSlashSlash ? \"//\" : support.commentHash ? \"#\" : \"--\",\n block: {open: \"/*\", close: \"*/\"}\n },\n closeBrackets: {brackets: [\"(\", \"[\", \"{\", \"'\", '\"', \"`\"]}\n }\n };\n};\n\n// `identifier`\nfunction hookIdentifier(stream) {\n // MySQL/MariaDB identifiers\n // ref: http://dev.mysql.com/doc/refman/5.6/en/identifier-qualifiers.html\n var ch;\n while ((ch = stream.next()) != null) {\n if (ch == \"`\" && !stream.eat(\"`\")) return \"string.special\";\n }\n stream.backUp(stream.current().length - 1);\n return stream.eatWhile(/\\w/) ? \"string.special\" : null;\n}\n\n// \"identifier\"\nfunction hookIdentifierDoublequote(stream) {\n // Standard SQL /SQLite identifiers\n // ref: http://web.archive.org/web/20160813185132/http://savage.net.au/SQL/sql-99.bnf.html#delimited%20identifier\n // ref: http://sqlite.org/lang_keywords.html\n var ch;\n while ((ch = stream.next()) != null) {\n if (ch == \"\\\"\" && !stream.eat(\"\\\"\")) return \"string.special\";\n }\n stream.backUp(stream.current().length - 1);\n return stream.eatWhile(/\\w/) ? \"string.special\" : null;\n}\n\n// variable token\nfunction hookVar(stream) {\n // variables\n // @@prefix.varName @varName\n // varName can be quoted with ` or ' or \"\n // ref: http://dev.mysql.com/doc/refman/5.5/en/user-variables.html\n if (stream.eat(\"@\")) {\n stream.match('session.');\n stream.match('local.');\n stream.match('global.');\n }\n\n if (stream.eat(\"'\")) {\n stream.match(/^.*'/);\n return \"string.special\";\n } else if (stream.eat('\"')) {\n stream.match(/^.*\"/);\n return \"string.special\";\n } else if (stream.eat(\"`\")) {\n stream.match(/^.*`/);\n return \"string.special\";\n } else if (stream.match(/^[0-9a-zA-Z$\\.\\_]+/)) {\n return \"string.special\";\n }\n return null;\n};\n\n// short client keyword token\nfunction hookClient(stream) {\n // \\N means NULL\n // ref: http://dev.mysql.com/doc/refman/5.5/en/null-values.html\n if (stream.eat(\"N\")) {\n return \"atom\";\n }\n // \\g, etc\n // ref: http://dev.mysql.com/doc/refman/5.5/en/mysql-commands.html\n return stream.match(/^[a-zA-Z.#!?]/) ? \"string.special\" : null;\n}\n\n// these keywords are used by all SQL dialects (however, a mode can still overwrite it)\nvar sqlKeywords = \"alter and as asc between by count create delete desc distinct drop from group having in insert into is join like not on or order select set table union update values where limit \";\n\n// turn a space-separated list into an array\nfunction set(str) {\n var obj = {}, words = str.split(\" \");\n for (var i = 0; i < words.length; ++i) obj[words[i]] = true;\n return obj;\n}\n\nvar defaultBuiltin = \"bool boolean bit blob enum long longblob longtext medium mediumblob mediumint mediumtext time timestamp tinyblob tinyint tinytext text bigint int int1 int2 int3 int4 int8 integer float float4 float8 double char varbinary varchar varcharacter precision real date datetime year unsigned signed decimal numeric\"\n\n// A generic SQL Mode. It's not a standard, it just try to support what is generally supported\nexport const standardSQL = sql({\n keywords: set(sqlKeywords + \"begin\"),\n builtin: set(defaultBuiltin),\n atoms: set(\"false true null unknown\"),\n dateSQL: set(\"date time timestamp\"),\n support: set(\"ODBCdotTable doubleQuote binaryNumber hexNumber\")\n});\n\nexport const msSQL = sql({\n client: set(\"$partition binary_checksum checksum connectionproperty context_info current_request_id error_line error_message error_number error_procedure error_severity error_state formatmessage get_filestream_transaction_context getansinull host_id host_name isnull isnumeric min_active_rowversion newid newsequentialid rowcount_big xact_state object_id\"),\n keywords: set(sqlKeywords + \"begin trigger proc view index for add constraint key primary foreign collate clustered nonclustered declare exec go if use index holdlock nolock nowait paglock readcommitted readcommittedlock readpast readuncommitted repeatableread rowlock serializable snapshot tablock tablockx updlock with\"),\n builtin: set(\"bigint numeric bit smallint decimal smallmoney int tinyint money float real char varchar text nchar nvarchar ntext binary varbinary image cursor timestamp hierarchyid uniqueidentifier sql_variant xml table \"),\n atoms: set(\"is not null like and or in left right between inner outer join all any some cross unpivot pivot exists\"),\n operatorChars: /^[*+\\-%<>!=^\\&|\\/]/,\n brackets: /^[\\{}\\(\\)]/,\n punctuation: /^[;.,:/]/,\n backslashStringEscapes: false,\n dateSQL: set(\"date datetimeoffset datetime2 smalldatetime datetime time\"),\n hooks: {\n \"@\": hookVar\n }\n});\n\nexport const mySQL = sql({\n client: set(\"charset clear connect edit ego exit go help nopager notee nowarning pager print prompt quit rehash source status system tee\"),\n keywords: set(sqlKeywords + \"accessible action add after algorithm all analyze asensitive at authors auto_increment autocommit avg avg_row_length before binary binlog both btree cache call cascade cascaded case catalog_name chain change changed character check checkpoint checksum class_origin client_statistics close coalesce code collate collation collations column columns comment commit committed completion concurrent condition connection consistent constraint contains continue contributors convert cross current current_date current_time current_timestamp current_user cursor data database databases day_hour day_microsecond day_minute day_second deallocate dec declare default delay_key_write delayed delimiter des_key_file describe deterministic dev_pop dev_samp deviance diagnostics directory disable discard distinctrow div dual dumpfile each elseif enable enclosed end ends engine engines enum errors escape escaped even event events every execute exists exit explain extended fast fetch field fields first flush for force foreign found_rows full fulltext function general get global grant grants group group_concat handler hash help high_priority hosts hour_microsecond hour_minute hour_second if ignore ignore_server_ids import index index_statistics infile inner innodb inout insensitive insert_method install interval invoker isolation iterate key keys kill language last leading leave left level limit linear lines list load local localtime localtimestamp lock logs low_priority master master_heartbeat_period master_ssl_verify_server_cert masters match max max_rows maxvalue message_text middleint migrate min min_rows minute_microsecond minute_second mod mode modifies modify mutex mysql_errno natural next no no_write_to_binlog offline offset one online open optimize option optionally out outer outfile pack_keys parser partition partitions password phase plugin plugins prepare preserve prev primary privileges procedure processlist profile profiles purge query quick range read read_write reads real rebuild recover references regexp relaylog release remove rename reorganize repair repeatable replace require resignal restrict resume return returns revoke right rlike rollback rollup row row_format rtree savepoint schedule schema schema_name schemas second_microsecond security sensitive separator serializable server session share show signal slave slow smallint snapshot soname spatial specific sql sql_big_result sql_buffer_result sql_cache sql_calc_found_rows sql_no_cache sql_small_result sqlexception sqlstate sqlwarning ssl start starting starts status std stddev stddev_pop stddev_samp storage straight_join subclass_origin sum suspend table_name table_statistics tables tablespace temporary terminated to trailing transaction trigger triggers truncate uncommitted undo uninstall unique unlock upgrade usage use use_frm user user_resources user_statistics using utc_date utc_time utc_timestamp value variables varying view views warnings when while with work write xa xor year_month zerofill begin do then else loop repeat\"),\n builtin: set(\"bool boolean bit blob decimal double float long longblob longtext medium mediumblob mediumint mediumtext time timestamp tinyblob tinyint tinytext text bigint int int1 int2 int3 int4 int8 integer float float4 float8 double char varbinary varchar varcharacter precision date datetime year unsigned signed numeric\"),\n atoms: set(\"false true null unknown\"),\n operatorChars: /^[*+\\-%<>!=&|^]/,\n dateSQL: set(\"date time timestamp\"),\n support: set(\"ODBCdotTable decimallessFloat zerolessFloat binaryNumber hexNumber doubleQuote nCharCast charsetCast commentHash commentSpaceRequired\"),\n hooks: {\n \"@\": hookVar,\n \"`\": hookIdentifier,\n \"\\\\\": hookClient\n }\n});\n\nexport const mariaDB = sql({\n client: set(\"charset clear connect edit ego exit go help nopager notee nowarning pager print prompt quit rehash source status system tee\"),\n keywords: set(sqlKeywords + \"accessible action add after algorithm all always analyze asensitive at authors auto_increment autocommit avg avg_row_length before binary binlog both btree cache call cascade cascaded case catalog_name chain change changed character check checkpoint checksum class_origin client_statistics close coalesce code collate collation collations column columns comment commit committed completion concurrent condition connection consistent constraint contains continue contributors convert cross current current_date current_time current_timestamp current_user cursor data database databases day_hour day_microsecond day_minute day_second deallocate dec declare default delay_key_write delayed delimiter des_key_file describe deterministic dev_pop dev_samp deviance diagnostics directory disable discard distinctrow div dual dumpfile each elseif enable enclosed end ends engine engines enum errors escape escaped even event events every execute exists exit explain extended fast fetch field fields first flush for force foreign found_rows full fulltext function general generated get global grant grants group group_concat handler hard hash help high_priority hosts hour_microsecond hour_minute hour_second if ignore ignore_server_ids import index index_statistics infile inner innodb inout insensitive insert_method install interval invoker isolation iterate key keys kill language last leading leave left level limit linear lines list load local localtime localtimestamp lock logs low_priority master master_heartbeat_period master_ssl_verify_server_cert masters match max max_rows maxvalue message_text middleint migrate min min_rows minute_microsecond minute_second mod mode modifies modify mutex mysql_errno natural next no no_write_to_binlog offline offset one online open optimize option optionally out outer outfile pack_keys parser partition partitions password persistent phase plugin plugins prepare preserve prev primary privileges procedure processlist profile profiles purge query quick range read read_write reads real rebuild recover references regexp relaylog release remove rename reorganize repair repeatable replace require resignal restrict resume return returns revoke right rlike rollback rollup row row_format rtree savepoint schedule schema schema_name schemas second_microsecond security sensitive separator serializable server session share show shutdown signal slave slow smallint snapshot soft soname spatial specific sql sql_big_result sql_buffer_result sql_cache sql_calc_found_rows sql_no_cache sql_small_result sqlexception sqlstate sqlwarning ssl start starting starts status std stddev stddev_pop stddev_samp storage straight_join subclass_origin sum suspend table_name table_statistics tables tablespace temporary terminated to trailing transaction trigger triggers truncate uncommitted undo uninstall unique unlock upgrade usage use use_frm user user_resources user_statistics using utc_date utc_time utc_timestamp value variables varying view views virtual warnings when while with work write xa xor year_month zerofill begin do then else loop repeat\"),\n builtin: set(\"bool boolean bit blob decimal double float long longblob longtext medium mediumblob mediumint mediumtext time timestamp tinyblob tinyint tinytext text bigint int int1 int2 int3 int4 int8 integer float float4 float8 double char varbinary varchar varcharacter precision date datetime year unsigned signed numeric\"),\n atoms: set(\"false true null unknown\"),\n operatorChars: /^[*+\\-%<>!=&|^]/,\n dateSQL: set(\"date time timestamp\"),\n support: set(\"ODBCdotTable decimallessFloat zerolessFloat binaryNumber hexNumber doubleQuote nCharCast charsetCast commentHash commentSpaceRequired\"),\n hooks: {\n \"@\": hookVar,\n \"`\": hookIdentifier,\n \"\\\\\": hookClient\n }\n});\n\n// provided by the phpLiteAdmin project - phpliteadmin.org\nexport const sqlite = sql({\n // commands of the official SQLite client, ref: https://www.sqlite.org/cli.html#dotcmd\n client: set(\"auth backup bail binary changes check clone databases dbinfo dump echo eqp exit explain fullschema headers help import imposter indexes iotrace limit lint load log mode nullvalue once open output print prompt quit read restore save scanstats schema separator session shell show stats system tables testcase timeout timer trace vfsinfo vfslist vfsname width\"),\n // ref: http://sqlite.org/lang_keywords.html\n keywords: set(sqlKeywords + \"abort action add after all analyze attach autoincrement before begin cascade case cast check collate column commit conflict constraint cross current_date current_time current_timestamp database default deferrable deferred detach each else end escape except exclusive exists explain fail for foreign full glob if ignore immediate index indexed initially inner instead intersect isnull key left limit match natural no notnull null of offset outer plan pragma primary query raise recursive references regexp reindex release rename replace restrict right rollback row savepoint temp temporary then to transaction trigger unique using vacuum view virtual when with without\"),\n // SQLite is weakly typed, ref: http://sqlite.org/datatype3.html. This is just a list of some common types.\n builtin: set(\"bool boolean bit blob decimal double float long longblob longtext medium mediumblob mediumint mediumtext time timestamp tinyblob tinyint tinytext text clob bigint int int2 int8 integer float double char varchar date datetime year unsigned signed numeric real\"),\n // ref: http://sqlite.org/syntax/literal-value.html\n atoms: set(\"null current_date current_time current_timestamp\"),\n // ref: http://sqlite.org/lang_expr.html#binaryops\n operatorChars: /^[*+\\-%<>!=&|/~]/,\n // SQLite is weakly typed, ref: http://sqlite.org/datatype3.html. This is just a list of some common types.\n dateSQL: set(\"date time timestamp datetime\"),\n support: set(\"decimallessFloat zerolessFloat\"),\n identifierQuote: \"\\\"\", //ref: http://sqlite.org/lang_keywords.html\n hooks: {\n // bind-parameters ref:http://sqlite.org/lang_expr.html#varparam\n \"@\": hookVar,\n \":\": hookVar,\n \"?\": hookVar,\n \"$\": hookVar,\n // The preferred way to escape Identifiers is using double quotes, ref: http://sqlite.org/lang_keywords.html\n \"\\\"\": hookIdentifierDoublequote,\n // there is also support for backticks, ref: http://sqlite.org/lang_keywords.html\n \"`\": hookIdentifier\n }\n});\n\n// the query language used by Apache Cassandra is called CQL, but this mime type\n// is called Cassandra to avoid confusion with Contextual Query Language\nexport const cassandra = sql({\n client: { },\n keywords: set(\"add all allow alter and any apply as asc authorize batch begin by clustering columnfamily compact consistency count create custom delete desc distinct drop each_quorum exists filtering from grant if in index insert into key keyspace keyspaces level limit local_one local_quorum modify nan norecursive nosuperuser not of on one order password permission permissions primary quorum rename revoke schema select set storage superuser table three to token truncate ttl two type unlogged update use user users using values where with writetime\"),\n builtin: set(\"ascii bigint blob boolean counter decimal double float frozen inet int list map static text timestamp timeuuid tuple uuid varchar varint\"),\n atoms: set(\"false true infinity NaN\"),\n operatorChars: /^[<>=]/,\n dateSQL: { },\n support: set(\"commentSlashSlash decimallessFloat\"),\n hooks: { }\n});\n\n// this is based on Peter Raganitsch's 'plsql' mode\nexport const plSQL = sql({\n client: set(\"appinfo arraysize autocommit autoprint autorecovery autotrace blockterminator break btitle cmdsep colsep compatibility compute concat copycommit copytypecheck define describe echo editfile embedded escape exec execute feedback flagger flush heading headsep instance linesize lno loboffset logsource long longchunksize markup native newpage numformat numwidth pagesize pause pno recsep recsepchar release repfooter repheader serveroutput shiftinout show showmode size spool sqlblanklines sqlcase sqlcode sqlcontinue sqlnumber sqlpluscompatibility sqlprefix sqlprompt sqlterminator suffix tab term termout time timing trimout trimspool ttitle underline verify version wrap\"),\n keywords: set(\"abort accept access add all alter and any array arraylen as asc assert assign at attributes audit authorization avg base_table begin between binary_integer body boolean by case cast char char_base check close cluster clusters colauth column comment commit compress connect connected constant constraint crash create current currval cursor data_base database date dba deallocate debugoff debugon decimal declare default definition delay delete desc digits dispose distinct do drop else elseif elsif enable end entry escape exception exception_init exchange exclusive exists exit external fast fetch file for force form from function generic goto grant group having identified if immediate in increment index indexes indicator initial initrans insert interface intersect into is key level library like limited local lock log logging long loop master maxextents maxtrans member minextents minus mislabel mode modify multiset new next no noaudit nocompress nologging noparallel not nowait number_base object of off offline on online only open option or order out package parallel partition pctfree pctincrease pctused pls_integer positive positiven pragma primary prior private privileges procedure public raise range raw read rebuild record ref references refresh release rename replace resource restrict return returning returns reverse revoke rollback row rowid rowlabel rownum rows run savepoint schema segment select separate session set share snapshot some space split sql start statement storage subtype successful synonym tabauth table tables tablespace task terminate then to trigger truncate type union unique unlimited unrecoverable unusable update use using validate value values variable view views when whenever where while with work\"),\n builtin: set(\"abs acos add_months ascii asin atan atan2 average bfile bfilename bigserial bit blob ceil character chartorowid chr clob concat convert cos cosh count dec decode deref dual dump dup_val_on_index empty error exp false float floor found glb greatest hextoraw initcap instr instrb int integer isopen last_day least length lengthb ln lower lpad ltrim lub make_ref max min mlslabel mod months_between natural naturaln nchar nclob new_time next_day nextval nls_charset_decl_len nls_charset_id nls_charset_name nls_initcap nls_lower nls_sort nls_upper nlssort no_data_found notfound null number numeric nvarchar2 nvl others power rawtohex real reftohex round rowcount rowidtochar rowtype rpad rtrim serial sign signtype sin sinh smallint soundex sqlcode sqlerrm sqrt stddev string substr substrb sum sysdate tan tanh to_char text to_date to_label to_multi_byte to_number to_single_byte translate true trunc uid unlogged upper user userenv varchar varchar2 variance varying vsize xml\"),\n operatorChars: /^[*\\/+\\-%<>!=~]/,\n dateSQL: set(\"date time timestamp\"),\n support: set(\"doubleQuote nCharCast zerolessFloat binaryNumber hexNumber\")\n});\n\n// Created to support specific hive keywords\nexport const hive = sql({\n keywords: set(\"select alter $elem$ $key$ $value$ add after all analyze and archive as asc before between binary both bucket buckets by cascade case cast change cluster clustered clusterstatus collection column columns comment compute concatenate continue create cross cursor data database databases dbproperties deferred delete delimited desc describe directory disable distinct distribute drop else enable end escaped exclusive exists explain export extended external fetch fields fileformat first format formatted from full function functions grant group having hold_ddltime idxproperties if import in index indexes inpath inputdriver inputformat insert intersect into is items join keys lateral left like limit lines load local location lock locks mapjoin materialized minus msck no_drop nocompress not of offline on option or order out outer outputdriver outputformat overwrite partition partitioned partitions percent plus preserve procedure purge range rcfile read readonly reads rebuild recordreader recordwriter recover reduce regexp rename repair replace restrict revoke right rlike row schema schemas semi sequencefile serde serdeproperties set shared show show_database sort sorted ssl statistics stored streamtable table tables tablesample tblproperties temporary terminated textfile then tmp to touch transform trigger unarchive undo union uniquejoin unlock update use using utc utc_tmestamp view when where while with admin authorization char compact compactions conf cube current current_date current_timestamp day decimal defined dependency directories elem_type exchange file following for grouping hour ignore inner interval jar less logical macro minute month more none noscan over owner partialscan preceding pretty principals protection reload rewrite role roles rollup rows second server sets skewed transactions truncate unbounded unset uri user values window year\"),\n builtin: set(\"bool boolean long timestamp tinyint smallint bigint int float double date datetime unsigned string array struct map uniontype key_type utctimestamp value_type varchar\"),\n atoms: set(\"false true null unknown\"),\n operatorChars: /^[*+\\-%<>!=]/,\n dateSQL: set(\"date timestamp\"),\n support: set(\"ODBCdotTable doubleQuote binaryNumber hexNumber\")\n});\n\nexport const pgSQL = sql({\n client: set(\"source\"),\n // For PostgreSQL - https://www.postgresql.org/docs/11/sql-keywords-appendix.html\n // For pl/pgsql lang - https://github.com/postgres/postgres/blob/REL_11_2/src/pl/plpgsql/src/pl_scanner.c\n keywords: set(sqlKeywords + \"a abort abs absent absolute access according action ada add admin after aggregate alias all allocate also alter always analyse analyze and any are array array_agg array_max_cardinality as asc asensitive assert assertion assignment asymmetric at atomic attach attribute attributes authorization avg backward base64 before begin begin_frame begin_partition bernoulli between bigint binary bit bit_length blob blocked bom boolean both breadth by c cache call called cardinality cascade cascaded case cast catalog catalog_name ceil ceiling chain char char_length character character_length character_set_catalog character_set_name character_set_schema characteristics characters check checkpoint class class_origin clob close cluster coalesce cobol collate collation collation_catalog collation_name collation_schema collect column column_name columns command_function command_function_code comment comments commit committed concurrently condition condition_number configuration conflict connect connection connection_name constant constraint constraint_catalog constraint_name constraint_schema constraints constructor contains content continue control conversion convert copy corr corresponding cost count covar_pop covar_samp create cross csv cube cume_dist current current_catalog current_date current_default_transform_group current_path current_role current_row current_schema current_time current_timestamp current_transform_group_for_type current_user cursor cursor_name cycle data database datalink datatype date datetime_interval_code datetime_interval_precision day db deallocate debug dec decimal declare default defaults deferrable deferred defined definer degree delete delimiter delimiters dense_rank depends depth deref derived desc describe descriptor detach detail deterministic diagnostics dictionary disable discard disconnect dispatch distinct dlnewcopy dlpreviouscopy dlurlcomplete dlurlcompleteonly dlurlcompletewrite dlurlpath dlurlpathonly dlurlpathwrite dlurlscheme dlurlserver dlvalue do document domain double drop dump dynamic dynamic_function dynamic_function_code each element else elseif elsif empty enable encoding encrypted end end_frame end_partition endexec enforced enum equals errcode error escape event every except exception exclude excluding exclusive exec execute exists exit exp explain expression extension external extract false family fetch file filter final first first_value flag float floor following for force foreach foreign fortran forward found frame_row free freeze from fs full function functions fusion g general generated get global go goto grant granted greatest group grouping groups handler having header hex hierarchy hint hold hour id identity if ignore ilike immediate immediately immutable implementation implicit import in include including increment indent index indexes indicator info inherit inherits initially inline inner inout input insensitive insert instance instantiable instead int integer integrity intersect intersection interval into invoker is isnull isolation join k key key_member key_type label lag language large last last_value lateral lead leading leakproof least left length level library like like_regex limit link listen ln load local localtime localtimestamp location locator lock locked log logged loop lower m map mapping match matched materialized max max_cardinality maxvalue member merge message message_length message_octet_length message_text method min minute minvalue mod mode modifies module month more move multiset mumps name names namespace national natural nchar nclob nesting new next nfc nfd nfkc nfkd nil no none normalize normalized not nothing notice notify notnull nowait nth_value ntile null nullable nullif nulls number numeric object occurrences_regex octet_length octets of off offset oids old on only open operator option options or order ordering ordinality others out outer output over overlaps overlay overriding owned owner p pad parallel parameter parameter_mode parameter_name parameter_ordinal_position parameter_specific_catalog parameter_specific_name parameter_specific_schema parser partial partition pascal passing passthrough password path percent percent_rank percentile_cont percentile_disc perform period permission pg_context pg_datatype_name pg_exception_context pg_exception_detail pg_exception_hint placing plans pli policy portion position position_regex power precedes preceding precision prepare prepared preserve primary print_strict_params prior privileges procedural procedure procedures program public publication query quote raise range rank read reads real reassign recheck recovery recursive ref references referencing refresh regr_avgx regr_avgy regr_count regr_intercept regr_r2 regr_slope regr_sxx regr_sxy regr_syy reindex relative release rename repeatable replace replica requiring reset respect restart restore restrict result result_oid return returned_cardinality returned_length returned_octet_length returned_sqlstate returning returns reverse revoke right role rollback rollup routine routine_catalog routine_name routine_schema routines row row_count row_number rows rowtype rule savepoint scale schema schema_name schemas scope scope_catalog scope_name scope_schema scroll search second section security select selective self sensitive sequence sequences serializable server server_name session session_user set setof sets share show similar simple size skip slice smallint snapshot some source space specific specific_name specifictype sql sqlcode sqlerror sqlexception sqlstate sqlwarning sqrt stable stacked standalone start state statement static statistics stddev_pop stddev_samp stdin stdout storage strict strip structure style subclass_origin submultiset subscription substring substring_regex succeeds sum symmetric sysid system system_time system_user t table table_name tables tablesample tablespace temp template temporary text then ties time timestamp timezone_hour timezone_minute to token top_level_count trailing transaction transaction_active transactions_committed transactions_rolled_back transform transforms translate translate_regex translation treat trigger trigger_catalog trigger_name trigger_schema trim trim_array true truncate trusted type types uescape unbounded uncommitted under unencrypted union unique unknown unlink unlisten unlogged unnamed unnest until untyped update upper uri usage use_column use_variable user user_defined_type_catalog user_defined_type_code user_defined_type_name user_defined_type_schema using vacuum valid validate validator value value_of values var_pop var_samp varbinary varchar variable_conflict variadic varying verbose version versioning view views volatile warning when whenever where while whitespace width_bucket window with within without work wrapper write xml xmlagg xmlattributes xmlbinary xmlcast xmlcomment xmlconcat xmldeclaration xmldocument xmlelement xmlexists xmlforest xmliterate xmlnamespaces xmlparse xmlpi xmlquery xmlroot xmlschema xmlserialize xmltable xmltext xmlvalidate year yes zone\"),\n // https://www.postgresql.org/docs/11/datatype.html\n builtin: set(\"bigint int8 bigserial serial8 bit varying varbit boolean bool box bytea character char varchar cidr circle date double precision float8 inet integer int int4 interval json jsonb line lseg macaddr macaddr8 money numeric decimal path pg_lsn point polygon real float4 smallint int2 smallserial serial2 serial serial4 text time without zone with timetz timestamp timestamptz tsquery tsvector txid_snapshot uuid xml\"),\n atoms: set(\"false true null unknown\"),\n operatorChars: /^[*\\/+\\-%<>!=&|^\\/#@?~]/,\n backslashStringEscapes: false,\n dateSQL: set(\"date time timestamp\"),\n support: set(\"ODBCdotTable decimallessFloat zerolessFloat binaryNumber hexNumber nCharCast charsetCast escapeConstant\")\n});\n\n// Google's SQL-like query language, GQL\nexport const gql = sql({\n keywords: set(\"ancestor and asc by contains desc descendant distinct from group has in is limit offset on order select superset where\"),\n atoms: set(\"false true\"),\n builtin: set(\"blob datetime first key __key__ string integer double boolean null\"),\n operatorChars: /^[*+\\-%<>!=]/\n});\n\n// Greenplum\nexport const gpSQL = sql({\n client: set(\"source\"),\n //https://github.com/greenplum-db/gpdb/blob/master/src/include/parser/kwlist.h\n keywords: set(\"abort absolute access action active add admin after aggregate all also alter always analyse analyze and any array as asc assertion assignment asymmetric at authorization backward before begin between bigint binary bit boolean both by cache called cascade cascaded case cast chain char character characteristics check checkpoint class close cluster coalesce codegen collate column comment commit committed concurrency concurrently configuration connection constraint constraints contains content continue conversion copy cost cpu_rate_limit create createdb createexttable createrole createuser cross csv cube current current_catalog current_date current_role current_schema current_time current_timestamp current_user cursor cycle data database day deallocate dec decimal declare decode default defaults deferrable deferred definer delete delimiter delimiters deny desc dictionary disable discard distinct distributed do document domain double drop dxl each else enable encoding encrypted end enum errors escape every except exchange exclude excluding exclusive execute exists explain extension external extract false family fetch fields filespace fill filter first float following for force foreign format forward freeze from full function global grant granted greatest group group_id grouping handler hash having header hold host hour identity if ignore ilike immediate immutable implicit in including inclusive increment index indexes inherit inherits initially inline inner inout input insensitive insert instead int integer intersect interval into invoker is isnull isolation join key language large last leading least left level like limit list listen load local localtime localtimestamp location lock log login mapping master match maxvalue median merge minute minvalue missing mode modifies modify month move name names national natural nchar new newline next no nocreatedb nocreateexttable nocreaterole nocreateuser noinherit nologin none noovercommit nosuperuser not nothing notify notnull nowait null nullif nulls numeric object of off offset oids old on only operator option options or order ordered others out outer over overcommit overlaps overlay owned owner parser partial partition partitions passing password percent percentile_cont percentile_disc placing plans position preceding precision prepare prepared preserve primary prior privileges procedural procedure protocol queue quote randomly range read readable reads real reassign recheck recursive ref references reindex reject relative release rename repeatable replace replica reset resource restart restrict returning returns revoke right role rollback rollup rootpartition row rows rule savepoint scatter schema scroll search second security segment select sequence serializable session session_user set setof sets share show similar simple smallint some split sql stable standalone start statement statistics stdin stdout storage strict strip subpartition subpartitions substring superuser symmetric sysid system table tablespace temp template temporary text then threshold ties time timestamp to trailing transaction treat trigger trim true truncate trusted type unbounded uncommitted unencrypted union unique unknown unlisten until update user using vacuum valid validation validator value values varchar variadic varying verbose version view volatile web when where whitespace window with within without work writable write xml xmlattributes xmlconcat xmlelement xmlexists xmlforest xmlparse xmlpi xmlroot 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float2str hex2bit hex2int\" +\n \" hex2oct hex2str int2bit int2char int2float int2hex\" +\n \" int2oct int2str int2unichar isbound ischosen ispresent\" +\n \" isvalue lengthof log2str oct2bit oct2char oct2hex oct2int\" +\n \" oct2str regexp replace rnd sizeof str2bit str2float\" +\n \" str2hex str2int str2oct substr unichar2int unichar2char\" +\n \" enum2int\"),\n types: words(\"anytype bitstring boolean char charstring default float\" +\n \" hexstring integer objid octetstring universal verdicttype timer\"),\n timerOps: words(\"read running start stop timeout\"),\n portOps: words(\"call catch check clear getcall getreply halt raise receive\" +\n \" reply send trigger\"),\n configOps: words(\"create connect disconnect done kill killed map unmap\"),\n verdictOps: words(\"getverdict setverdict\"),\n sutOps: words(\"action\"),\n functionOps: words(\"apply derefers refers\"),\n\n verdictConsts: words(\"error fail inconc none pass\"),\n booleanConsts: words(\"true false\"),\n otherConsts: 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parserConfig.visibilityModifiers || {},\n templateMatch = parserConfig.templateMatch || {},\n multiLineStrings = parserConfig.multiLineStrings,\n indentStatements = parserConfig.indentStatements !== false;\nvar isOperatorChar = /[+\\-*&@=<>!\\/]/;\nvar curPunc;\n\nfunction tokenBase(stream, state) {\n var ch = stream.next();\n\n if (ch == '\"' || ch == \"'\") {\n state.tokenize = tokenString(ch);\n return state.tokenize(stream, state);\n }\n if (/[\\[\\]{}\\(\\),;\\\\:\\?\\.]/.test(ch)) {\n curPunc = ch;\n return \"punctuation\";\n }\n if (ch == \"#\"){\n stream.skipToEnd();\n return \"atom\";\n }\n if (ch == \"%\"){\n stream.eatWhile(/\\b/);\n return \"atom\";\n }\n if (/\\d/.test(ch)) {\n stream.eatWhile(/[\\w\\.]/);\n return \"number\";\n }\n if (ch == \"/\") {\n if (stream.eat(\"*\")) {\n state.tokenize = tokenComment;\n return tokenComment(stream, state);\n }\n if (stream.eat(\"/\")) {\n stream.skipToEnd();\n return \"comment\";\n }\n }\n if (isOperatorChar.test(ch)) {\n if(ch == \"@\"){\n if(stream.match(\"try\") || stream.match(\"catch\")\n || stream.match(\"lazy\")){\n return \"keyword\";\n }\n }\n stream.eatWhile(isOperatorChar);\n return \"operator\";\n }\n stream.eatWhile(/[\\w\\$_\\xa1-\\uffff]/);\n var cur = stream.current();\n\n if (keywords.propertyIsEnumerable(cur)) return \"keyword\";\n if (builtin.propertyIsEnumerable(cur)) return \"builtin\";\n\n if (timerOps.propertyIsEnumerable(cur)) return \"def\";\n if (configOps.propertyIsEnumerable(cur)) return \"def\";\n if (verdictOps.propertyIsEnumerable(cur)) return \"def\";\n if (portOps.propertyIsEnumerable(cur)) return \"def\";\n if (sutOps.propertyIsEnumerable(cur)) return \"def\";\n if (functionOps.propertyIsEnumerable(cur)) return \"def\";\n\n if (verdictConsts.propertyIsEnumerable(cur)) return \"string\";\n if (booleanConsts.propertyIsEnumerable(cur)) return \"string\";\n if (otherConsts.propertyIsEnumerable(cur)) return \"string\";\n\n if (types.propertyIsEnumerable(cur)) return \"typeName.standard\";\n if (visibilityModifiers.propertyIsEnumerable(cur))\n return \"modifier\";\n if (templateMatch.propertyIsEnumerable(cur)) return \"atom\";\n\n return \"variable\";\n}\n\nfunction tokenString(quote) {\n return function(stream, state) {\n var escaped = false, next, end = false;\n while ((next = stream.next()) != null) {\n if (next == quote && !escaped){\n var afterQuote = stream.peek();\n //look if the character after the quote is like the B in '10100010'B\n if (afterQuote){\n afterQuote = afterQuote.toLowerCase();\n if(afterQuote == \"b\" || afterQuote == \"h\" || afterQuote == \"o\")\n stream.next();\n }\n end = true; break;\n }\n escaped = !escaped && next == \"\\\\\";\n }\n if (end || !(escaped || multiLineStrings))\n state.tokenize = null;\n return \"string\";\n };\n}\n\nfunction tokenComment(stream, state) {\n var maybeEnd = false, ch;\n while (ch = stream.next()) {\n if (ch == \"/\" && maybeEnd) {\n state.tokenize = null;\n break;\n }\n maybeEnd = (ch == \"*\");\n }\n return \"comment\";\n}\n\nfunction Context(indented, column, type, align, prev) {\n this.indented = indented;\n this.column = column;\n this.type = type;\n this.align = align;\n this.prev = prev;\n}\n\nfunction pushContext(state, col, type) {\n var indent = state.indented;\n if (state.context && state.context.type == \"statement\")\n indent = state.context.indented;\n return state.context = new Context(indent, col, type, null, state.context);\n}\n\nfunction popContext(state) {\n var t = state.context.type;\n if (t == \")\" || t == \"]\" || t == \"}\")\n state.indented = state.context.indented;\n return state.context = state.context.prev;\n}\n\n//Interface\nexport const ttcn = {\n name: \"ttcn\",\n startState: function() {\n return {\n tokenize: null,\n context: new Context(0, 0, \"top\", false),\n indented: 0,\n startOfLine: true\n };\n },\n\n token: function(stream, state) {\n var ctx = state.context;\n if (stream.sol()) {\n if (ctx.align == null) ctx.align = false;\n state.indented = stream.indentation();\n state.startOfLine = true;\n }\n if (stream.eatSpace()) return null;\n curPunc = null;\n var style = (state.tokenize || tokenBase)(stream, state);\n if (style == \"comment\") return style;\n if (ctx.align == null) ctx.align = true;\n\n if ((curPunc == \";\" || curPunc == \":\" || curPunc == \",\")\n && ctx.type == \"statement\"){\n popContext(state);\n }\n else if (curPunc == \"{\") pushContext(state, stream.column(), \"}\");\n else if (curPunc == \"[\") pushContext(state, stream.column(), \"]\");\n else if (curPunc == \"(\") pushContext(state, stream.column(), \")\");\n else if (curPunc == \"}\") {\n while (ctx.type == \"statement\") ctx = popContext(state);\n if (ctx.type == \"}\") ctx = popContext(state);\n while (ctx.type == \"statement\") ctx = popContext(state);\n }\n else if (curPunc == ctx.type) popContext(state);\n else if (indentStatements &&\n (((ctx.type == \"}\" || ctx.type == \"top\") && curPunc != ';') ||\n (ctx.type == \"statement\" && curPunc == \"newstatement\")))\n pushContext(state, stream.column(), \"statement\");\n\n state.startOfLine = false;\n\n return style;\n },\n\n languageData: {\n indentOnInput: /^\\s*[{}]$/,\n commentTokens: {line: \"//\", block: {open: \"/*\", close: \"*/\"}},\n autocomplete: wordList\n }\n};\n"],"names":["words","str","obj","split","i","length","parserConfig","name","keywords","builtin","types","timerOps","portOps","configOps","verdictOps","sutOps","functionOps","verdictConsts","booleanConsts","otherConsts","visibilityModifiers","templateMatch","multiLineStrings","wordList","add","prop","hasOwnProperty","push","curPunc","indentStatements","isOperatorChar","tokenBase","stream","state","quote","ch","next","tokenize","escaped","end","afterQuote","peek","toLowerCase","test","skipToEnd","eatWhile","eat","tokenComment","match","cur","current","propertyIsEnumerable","maybeEnd","Context","indented","column","type","align","prev","this","pushContext","col","indent","context","popContext","t","ttcn","startState","startOfLine","token","ctx","sol","indentation","eatSpace","style","languageData","indentOnInput","commentTokens","line","block","open","close","autocomplete"],"sourceRoot":""} \ No newline at end of file diff --git a/pr-preview/pr-707/6873.index.js b/pr-preview/pr-707/6873.index.js new file mode 100644 index 00000000..fd099526 --- /dev/null +++ b/pr-preview/pr-707/6873.index.js @@ -0,0 +1,2 @@ +"use strict";(self.webpackChunkthebe=self.webpackChunkthebe||[]).push([[6873],{96873:(t,e,n)=>{n.r(e),n.d(e,{textile:()=>p});var i={addition:"inserted",attributes:"propertyName",bold:"strong",cite:"keyword",code:"monospace",definitionList:"list",deletion:"deleted",div:"punctuation",em:"emphasis",footnote:"variable",footCite:"qualifier",header:"heading",html:"comment",image:"atom",italic:"emphasis",link:"link",linkDefinition:"link",list1:"list",list2:"list.special",list3:"list",notextile:"string.special",pre:"operator",p:"content",quote:"bracket",span:"quote",specialChar:"character",strong:"strong",sub:"content.special",sup:"content.special",table:"variableName.special",tableHeading:"operator"};function a(t,e,n){if("_"===n)return t.eat("_")?r(t,e,"italic",/__/,2):r(t,e,"em",/_/,1);if("*"===n)return t.eat("*")?r(t,e,"bold",/\*\*/,2):r(t,e,"strong",/\*/,1);if("["===n)return t.match(/\d+\]/)&&(e.footCite=!0),l(e);if("("===n&&t.match(/^(r|tm|c)\)/))return i.specialChar;if("<"===n&&t.match(/(\w+)[^>]+>[^<]+<\/\1>/))return i.html;if("?"===n&&t.eat("?"))return r(t,e,"cite",/\?\?/,2);if("="===n&&t.eat("="))return r(t,e,"notextile",/==/,2);if("-"===n&&!t.eat("-"))return r(t,e,"deletion",/-/,1);if("+"===n)return r(t,e,"addition",/\+/,1);if("~"===n)return r(t,e,"sub",/~/,1);if("^"===n)return r(t,e,"sup",/\^/,1);if("%"===n)return r(t,e,"span",/%/,1);if("@"===n)return r(t,e,"code",/@/,1);if("!"===n){var a=r(t,e,"image",/(?:\([^\)]+\))?!/,1);return t.match(/^:\S+/),a}return l(e)}function r(t,e,n,i,a){var r=t.pos>a?t.string.charAt(t.pos-a-1):null,o=t.peek();if(e[n]){if((!o||/\W/.test(o))&&r&&/\S/.test(r)){var u=l(e);return e[n]=!1,u}}else(!r||/\W/.test(r))&&o&&/\S/.test(o)&&t.match(new RegExp("^.*\\S"+i.source+"(?:\\W|$)"),!1)&&(e[n]=!0,e.mode=c.attributes);return l(e)}function l(t){var e=o(t);if(e)return e;var n=[];return t.layoutType&&n.push(i[t.layoutType]),n=n.concat(function(t){for(var e=[],n=1;n]+)?>(?:[^<]+<\/\1>)?/,link:/[^"]+":\S/,linkDefinition:/\[[^\s\]]+\]\S+/,list:/(?:#+|\*+)/,notextile:"notextile",para:"p",pre:"pre",table:"table",tableCellAttributes:/[\/\\]\d+/,tableHeading:/\|_\./,tableText:/[^"_\*\[\(\?\+~\^%@|-]+/,text:/[^!"_=\*\[\(<\?\+~\^%@-]+/},attributes:{align:/(?:<>|<|>|=)/,selector:/\([^\(][^\)]+\)/,lang:/\[[^\[\]]+\]/,pad:/(?:\(+|\)+){1,2}/,css:/\{[^\}]+\}/},createRe:function(t){switch(t){case"drawTable":return u.makeRe("^",u.single.drawTable,"$");case"html":return u.makeRe("^",u.single.html,"(?:",u.single.html,")*","$");case"linkDefinition":return u.makeRe("^",u.single.linkDefinition,"$");case"listLayout":return u.makeRe("^",u.single.list,s("allAttributes"),"*\\s+");case"tableCellAttributes":return u.makeRe("^",u.choiceRe(u.single.tableCellAttributes,s("allAttributes")),"+\\.");case"type":return u.makeRe("^",s("allTypes"));case"typeLayout":return u.makeRe("^",s("allTypes"),s("allAttributes"),"*\\.\\.?","(\\s+|$)");case"attributes":return u.makeRe("^",s("allAttributes"),"+");case"allTypes":return u.choiceRe(u.single.div,u.single.foot,u.single.header,u.single.bc,u.single.bq,u.single.notextile,u.single.pre,u.single.table,u.single.para);case"allAttributes":return u.choiceRe(u.attributes.selector,u.attributes.css,u.attributes.lang,u.attributes.align,u.attributes.pad);default:return u.makeRe("^",u.single[t])}},makeRe:function(){for(var t="",e=0;e]+>[^<]+<\\/\\1>/))\n return TOKEN_STYLES.html\n\n if (ch === \"?\" && stream.eat(\"?\"))\n return togglePhraseModifier(stream, state, \"cite\", /\\?\\?/, 2);\n\n if (ch === \"=\" && stream.eat(\"=\"))\n return togglePhraseModifier(stream, state, \"notextile\", /==/, 2);\n\n if (ch === \"-\" && !stream.eat(\"-\"))\n return togglePhraseModifier(stream, state, \"deletion\", /-/, 1);\n\n if (ch === \"+\")\n return togglePhraseModifier(stream, state, \"addition\", /\\+/, 1);\n\n if (ch === \"~\")\n return togglePhraseModifier(stream, state, \"sub\", /~/, 1);\n\n if (ch === \"^\")\n return togglePhraseModifier(stream, state, \"sup\", /\\^/, 1);\n\n if (ch === \"%\")\n return togglePhraseModifier(stream, state, \"span\", /%/, 1);\n\n if (ch === \"@\")\n return togglePhraseModifier(stream, state, \"code\", /@/, 1);\n\n if (ch === \"!\") {\n var type = togglePhraseModifier(stream, state, \"image\", /(?:\\([^\\)]+\\))?!/, 1);\n stream.match(/^:\\S+/); // optional Url portion\n return type;\n }\n return tokenStyles(state);\n}\n\nfunction togglePhraseModifier(stream, state, phraseModifier, closeRE, openSize) {\n var charBefore = stream.pos > openSize ? stream.string.charAt(stream.pos - openSize - 1) : null;\n var charAfter = stream.peek();\n if (state[phraseModifier]) {\n if ((!charAfter || /\\W/.test(charAfter)) && charBefore && /\\S/.test(charBefore)) {\n var type = tokenStyles(state);\n state[phraseModifier] = false;\n return type;\n }\n } else if ((!charBefore || /\\W/.test(charBefore)) && charAfter && /\\S/.test(charAfter) &&\n stream.match(new RegExp(\"^.*\\\\S\" + closeRE.source + \"(?:\\\\W|$)\"), false)) {\n state[phraseModifier] = true;\n state.mode = Modes.attributes;\n }\n return tokenStyles(state);\n};\n\nfunction tokenStyles(state) {\n var disabled = textileDisabled(state);\n if (disabled) return disabled;\n\n var styles = [];\n if (state.layoutType) styles.push(TOKEN_STYLES[state.layoutType]);\n\n styles = styles.concat(activeStyles(\n state, \"addition\", \"bold\", \"cite\", \"code\", \"deletion\", \"em\", \"footCite\",\n \"image\", \"italic\", \"link\", \"span\", \"strong\", \"sub\", \"sup\", \"table\", \"tableHeading\"));\n\n if (state.layoutType === \"header\")\n styles.push(TOKEN_STYLES.header + \"-\" + state.header);\n\n return styles.length ? styles.join(\" \") : null;\n}\n\nfunction textileDisabled(state) {\n var type = state.layoutType;\n\n switch(type) {\n case \"notextile\":\n case \"code\":\n case \"pre\":\n return TOKEN_STYLES[type];\n default:\n if (state.notextile)\n return TOKEN_STYLES.notextile + (type ? (\" \" + TOKEN_STYLES[type]) : \"\");\n return null;\n }\n}\n\nfunction activeStyles(state) {\n var styles = [];\n for (var i = 1; i < arguments.length; ++i) {\n if (state[arguments[i]])\n styles.push(TOKEN_STYLES[arguments[i]]);\n }\n return styles;\n}\n\nfunction blankLine(state) {\n var spanningLayout = state.spanningLayout, type = state.layoutType;\n\n for (var key in state) if (state.hasOwnProperty(key))\n delete state[key];\n\n state.mode = Modes.newLayout;\n if (spanningLayout) {\n state.layoutType = type;\n state.spanningLayout = true;\n }\n}\n\nvar REs = {\n cache: {},\n single: {\n bc: \"bc\",\n bq: \"bq\",\n definitionList: /- .*?:=+/,\n definitionListEnd: /.*=:\\s*$/,\n div: \"div\",\n drawTable: /\\|.*\\|/,\n foot: /fn\\d+/,\n header: /h[1-6]/,\n html: /\\s*<(?:\\/)?(\\w+)(?:[^>]+)?>(?:[^<]+<\\/\\1>)?/,\n link: /[^\"]+\":\\S/,\n linkDefinition: /\\[[^\\s\\]]+\\]\\S+/,\n list: /(?:#+|\\*+)/,\n notextile: \"notextile\",\n para: \"p\",\n pre: \"pre\",\n table: \"table\",\n tableCellAttributes: /[\\/\\\\]\\d+/,\n tableHeading: /\\|_\\./,\n tableText: /[^\"_\\*\\[\\(\\?\\+~\\^%@|-]+/,\n text: /[^!\"_=\\*\\[\\(<\\?\\+~\\^%@-]+/\n },\n attributes: {\n align: /(?:<>|<|>|=)/,\n selector: /\\([^\\(][^\\)]+\\)/,\n lang: /\\[[^\\[\\]]+\\]/,\n pad: /(?:\\(+|\\)+){1,2}/,\n css: /\\{[^\\}]+\\}/\n },\n createRe: function(name) {\n switch (name) {\n case \"drawTable\":\n return REs.makeRe(\"^\", REs.single.drawTable, \"$\");\n case \"html\":\n return REs.makeRe(\"^\", REs.single.html, \"(?:\", REs.single.html, \")*\", \"$\");\n case \"linkDefinition\":\n return REs.makeRe(\"^\", REs.single.linkDefinition, \"$\");\n case \"listLayout\":\n return REs.makeRe(\"^\", REs.single.list, RE(\"allAttributes\"), \"*\\\\s+\");\n case \"tableCellAttributes\":\n return REs.makeRe(\"^\", REs.choiceRe(REs.single.tableCellAttributes,\n RE(\"allAttributes\")), \"+\\\\.\");\n case \"type\":\n return REs.makeRe(\"^\", RE(\"allTypes\"));\n case \"typeLayout\":\n return REs.makeRe(\"^\", RE(\"allTypes\"), RE(\"allAttributes\"),\n \"*\\\\.\\\\.?\", \"(\\\\s+|$)\");\n case \"attributes\":\n return REs.makeRe(\"^\", RE(\"allAttributes\"), \"+\");\n\n case \"allTypes\":\n return REs.choiceRe(REs.single.div, REs.single.foot,\n REs.single.header, REs.single.bc, REs.single.bq,\n REs.single.notextile, REs.single.pre, REs.single.table,\n REs.single.para);\n\n case \"allAttributes\":\n return REs.choiceRe(REs.attributes.selector, REs.attributes.css,\n REs.attributes.lang, REs.attributes.align, REs.attributes.pad);\n\n default:\n return REs.makeRe(\"^\", REs.single[name]);\n }\n },\n makeRe: function() {\n var pattern = \"\";\n for (var i = 0; i < arguments.length; ++i) {\n var arg = arguments[i];\n pattern += (typeof arg === \"string\") ? arg : arg.source;\n }\n return new RegExp(pattern);\n },\n choiceRe: function() {\n var parts = [arguments[0]];\n for (var i = 1; i < arguments.length; ++i) {\n parts[i * 2 - 1] = \"|\";\n parts[i * 2] = arguments[i];\n }\n\n parts.unshift(\"(?:\");\n parts.push(\")\");\n return REs.makeRe.apply(null, parts);\n }\n};\n\nfunction RE(name) {\n return (REs.cache[name] || (REs.cache[name] = REs.createRe(name)));\n}\n\nvar Modes = {\n newLayout: function(stream, state) {\n if (stream.match(RE(\"typeLayout\"), false)) {\n state.spanningLayout = false;\n return (state.mode = Modes.blockType)(stream, state);\n }\n var newMode;\n if (!textileDisabled(state)) {\n if (stream.match(RE(\"listLayout\"), false))\n newMode = Modes.list;\n else if (stream.match(RE(\"drawTable\"), false))\n newMode = Modes.table;\n else if (stream.match(RE(\"linkDefinition\"), false))\n newMode = Modes.linkDefinition;\n else if (stream.match(RE(\"definitionList\")))\n newMode = Modes.definitionList;\n else if (stream.match(RE(\"html\"), false))\n newMode = Modes.html;\n }\n return (state.mode = (newMode || Modes.text))(stream, state);\n },\n\n blockType: function(stream, state) {\n var match, type;\n state.layoutType = null;\n\n if (match = stream.match(RE(\"type\")))\n type = match[0];\n else\n return (state.mode = Modes.text)(stream, state);\n\n if (match = type.match(RE(\"header\"))) {\n state.layoutType = \"header\";\n state.header = parseInt(match[0][1]);\n } else if (type.match(RE(\"bq\"))) {\n state.layoutType = \"quote\";\n } else if (type.match(RE(\"bc\"))) {\n state.layoutType = \"code\";\n } else if (type.match(RE(\"foot\"))) {\n state.layoutType = \"footnote\";\n } else if (type.match(RE(\"notextile\"))) {\n state.layoutType = \"notextile\";\n } else if (type.match(RE(\"pre\"))) {\n state.layoutType = \"pre\";\n } else if (type.match(RE(\"div\"))) {\n state.layoutType = \"div\";\n } else if (type.match(RE(\"table\"))) {\n state.layoutType = \"table\";\n }\n\n state.mode = Modes.attributes;\n return tokenStyles(state);\n },\n\n text: function(stream, state) {\n if (stream.match(RE(\"text\"))) return tokenStyles(state);\n\n var ch = stream.next();\n if (ch === '\"')\n return (state.mode = Modes.link)(stream, state);\n return handlePhraseModifier(stream, state, ch);\n },\n\n attributes: function(stream, state) {\n state.mode = Modes.layoutLength;\n\n if (stream.match(RE(\"attributes\")))\n return TOKEN_STYLES.attributes\n else\n return tokenStyles(state);\n },\n\n layoutLength: function(stream, state) {\n if (stream.eat(\".\") && stream.eat(\".\"))\n state.spanningLayout = true;\n\n state.mode = Modes.text;\n return tokenStyles(state);\n },\n\n list: function(stream, state) {\n var match = stream.match(RE(\"list\"));\n state.listDepth = match[0].length;\n var listMod = (state.listDepth - 1) % 3;\n if (!listMod)\n state.layoutType = \"list1\";\n else if (listMod === 1)\n state.layoutType = \"list2\";\n else\n state.layoutType = \"list3\";\n\n state.mode = Modes.attributes;\n return tokenStyles(state);\n },\n\n link: function(stream, state) {\n state.mode = Modes.text;\n if (stream.match(RE(\"link\"))) {\n stream.match(/\\S+/);\n return TOKEN_STYLES.link\n }\n return tokenStyles(state);\n },\n\n linkDefinition: function(stream) {\n stream.skipToEnd();\n return TOKEN_STYLES.linkDefinition\n },\n\n definitionList: function(stream, state) {\n stream.match(RE(\"definitionList\"));\n\n state.layoutType = \"definitionList\";\n\n if (stream.match(/\\s*$/))\n state.spanningLayout = true;\n else\n state.mode = Modes.attributes;\n\n return tokenStyles(state);\n },\n\n html: function(stream) {\n stream.skipToEnd();\n return TOKEN_STYLES.html\n },\n\n table: function(stream, state) {\n state.layoutType = \"table\";\n return (state.mode = Modes.tableCell)(stream, state);\n },\n\n tableCell: function(stream, state) {\n if (stream.match(RE(\"tableHeading\")))\n state.tableHeading = true;\n else\n stream.eat(\"|\");\n\n state.mode = Modes.tableCellAttributes;\n return tokenStyles(state);\n },\n\n tableCellAttributes: function(stream, state) {\n state.mode = Modes.tableText;\n\n if (stream.match(RE(\"tableCellAttributes\")))\n return TOKEN_STYLES.attributes\n else\n return 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switchState(source, setState, f) {\n setState(f);\n return f(source, setState);\n}\n\n// These should all be Unicode extended, as per the Haskell 2010 report\nvar smallRE = /[a-z_]/;\nvar largeRE = /[A-Z]/;\nvar digitRE = /\\d/;\nvar hexitRE = /[0-9A-Fa-f]/;\nvar octitRE = /[0-7]/;\nvar idRE = /[a-z_A-Z0-9'\\xa1-\\uffff]/;\nvar symbolRE = /[-!#$%&*+.\\/<=>?@\\\\^|~:]/;\nvar specialRE = /[(),;[\\]`{}]/;\nvar whiteCharRE = /[ \\t\\v\\f]/; // newlines are handled in tokenizer\n\nfunction normal(source, setState) {\n if (source.eatWhile(whiteCharRE)) {\n return null;\n }\n\n var ch = source.next();\n if (specialRE.test(ch)) {\n if (ch == '{' && source.eat('-')) {\n var t = \"comment\";\n if (source.eat('#')) {\n t = \"meta\";\n }\n return switchState(source, setState, ncomment(t, 1));\n }\n return null;\n }\n\n if (ch == '\\'') {\n if (source.eat('\\\\')) {\n source.next(); // should handle other escapes here\n }\n else {\n source.next();\n }\n if (source.eat('\\'')) {\n return \"string\";\n }\n return \"error\";\n }\n\n if (ch == '\"') {\n return switchState(source, setState, stringLiteral);\n }\n\n if (largeRE.test(ch)) {\n source.eatWhile(idRE);\n if (source.eat('.')) {\n return \"qualifier\";\n }\n return \"type\";\n }\n\n if (smallRE.test(ch)) {\n source.eatWhile(idRE);\n return \"variable\";\n }\n\n if (digitRE.test(ch)) {\n if (ch == '0') {\n if (source.eat(/[xX]/)) {\n source.eatWhile(hexitRE); // should require at least 1\n return \"integer\";\n }\n if (source.eat(/[oO]/)) {\n source.eatWhile(octitRE); // should require at least 1\n return \"number\";\n }\n }\n source.eatWhile(digitRE);\n var t = \"number\";\n if (source.match(/^\\.\\d+/)) {\n t = \"number\";\n }\n if (source.eat(/[eE]/)) {\n t = \"number\";\n source.eat(/[-+]/);\n source.eatWhile(digitRE); // should require at least 1\n }\n return t;\n }\n\n if (ch == \".\" && source.eat(\".\"))\n return \"keyword\";\n\n if (symbolRE.test(ch)) {\n if (ch == '-' && source.eat(/-/)) {\n source.eatWhile(/-/);\n if (!source.eat(symbolRE)) {\n source.skipToEnd();\n return \"comment\";\n }\n }\n source.eatWhile(symbolRE);\n return \"variable\"\n }\n\n return \"error\";\n}\n\nfunction ncomment(type, nest) {\n if (nest == 0) {\n return normal;\n }\n return function(source, setState) {\n var currNest = nest;\n while (!source.eol()) {\n var ch = source.next();\n if (ch == '{' && source.eat('-')) {\n ++currNest;\n }\n else if (ch == '-' && source.eat('}')) {\n --currNest;\n if (currNest == 0) {\n setState(normal);\n return type;\n }\n }\n }\n setState(ncomment(type, currNest));\n return type;\n };\n}\n\nfunction stringLiteral(source, setState) {\n while (!source.eol()) {\n var ch = source.next();\n if (ch == '\"') {\n setState(normal);\n return \"string\";\n }\n if (ch == '\\\\') {\n if (source.eol() || source.eat(whiteCharRE)) {\n setState(stringGap);\n return \"string\";\n }\n if (source.eat('&')) {\n }\n else {\n source.next(); // should handle other escapes here\n }\n }\n 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\"^\", \"^^\", \"||\", \"*\",\n \"*>\", \"**\");\n\n setType(\"builtin\")(\n \"Applicative\", \"Bool\", \"Bounded\", \"Char\", \"Double\", \"EQ\", \"Either\", \"Enum\",\n \"Eq\", \"False\", \"FilePath\", \"Float\", \"Floating\", \"Fractional\", \"Functor\",\n \"GT\", \"IO\", \"IOError\", \"Int\", \"Integer\", \"Integral\", \"Just\", \"LT\", \"Left\",\n \"Maybe\", \"Monad\", \"Nothing\", \"Num\", \"Ord\", \"Ordering\", \"Rational\", \"Read\",\n \"ReadS\", \"Real\", \"RealFloat\", \"RealFrac\", \"Right\", \"Show\", \"ShowS\",\n \"String\", \"True\");\n\n setType(\"builtin\")(\n \"abs\", \"acos\", \"acosh\", \"all\", \"and\", \"any\", \"appendFile\", \"asTypeOf\",\n \"asin\", \"asinh\", \"atan\", \"atan2\", \"atanh\", \"break\", \"catch\", \"ceiling\",\n \"compare\", \"concat\", \"concatMap\", \"const\", \"cos\", \"cosh\", \"curry\",\n \"cycle\", \"decodeFloat\", \"div\", \"divMod\", \"drop\", \"dropWhile\", \"either\",\n \"elem\", \"encodeFloat\", \"enumFrom\", \"enumFromThen\", 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{ NodeType, NodeProp, NodeSet, Tree, Parser, parseMixed } from '@lezer/common';\nimport { styleTags, tags, Tag } from '@lezer/highlight';\n\nclass CompositeBlock {\n static create(type, value, from, parentHash, end) {\n let hash = (parentHash + (parentHash << 8) + type + (value << 4)) | 0;\n return new CompositeBlock(type, value, from, hash, end, [], []);\n }\n constructor(type, \n // Used for indentation in list items, markup character in lists\n value, from, hash, end, children, positions) {\n this.type = type;\n this.value = value;\n this.from = from;\n this.hash = hash;\n this.end = end;\n this.children = children;\n this.positions = positions;\n this.hashProp = [[NodeProp.contextHash, hash]];\n }\n addChild(child, pos) {\n if (child.prop(NodeProp.contextHash) != this.hash)\n child = new Tree(child.type, child.children, child.positions, child.length, this.hashProp);\n this.children.push(child);\n this.positions.push(pos);\n }\n toTree(nodeSet, end = this.end) {\n let last = this.children.length - 1;\n if (last >= 0)\n end = Math.max(end, this.positions[last] + this.children[last].length + this.from);\n return new Tree(nodeSet.types[this.type], this.children, this.positions, end - this.from).balance({\n makeTree: (children, positions, length) => new Tree(NodeType.none, children, positions, length, this.hashProp)\n });\n }\n}\nvar Type;\n(function (Type) {\n Type[Type[\"Document\"] = 1] = \"Document\";\n Type[Type[\"CodeBlock\"] = 2] = \"CodeBlock\";\n Type[Type[\"FencedCode\"] = 3] = \"FencedCode\";\n Type[Type[\"Blockquote\"] = 4] = \"Blockquote\";\n Type[Type[\"HorizontalRule\"] = 5] = \"HorizontalRule\";\n Type[Type[\"BulletList\"] = 6] = \"BulletList\";\n Type[Type[\"OrderedList\"] = 7] = \"OrderedList\";\n Type[Type[\"ListItem\"] = 8] = \"ListItem\";\n Type[Type[\"ATXHeading1\"] = 9] = \"ATXHeading1\";\n Type[Type[\"ATXHeading2\"] = 10] = \"ATXHeading2\";\n Type[Type[\"ATXHeading3\"] = 11] = \"ATXHeading3\";\n Type[Type[\"ATXHeading4\"] = 12] = \"ATXHeading4\";\n Type[Type[\"ATXHeading5\"] = 13] = \"ATXHeading5\";\n Type[Type[\"ATXHeading6\"] = 14] = \"ATXHeading6\";\n Type[Type[\"SetextHeading1\"] = 15] = \"SetextHeading1\";\n Type[Type[\"SetextHeading2\"] = 16] = \"SetextHeading2\";\n Type[Type[\"HTMLBlock\"] = 17] = \"HTMLBlock\";\n Type[Type[\"LinkReference\"] = 18] = \"LinkReference\";\n Type[Type[\"Paragraph\"] = 19] = \"Paragraph\";\n Type[Type[\"CommentBlock\"] = 20] = \"CommentBlock\";\n Type[Type[\"ProcessingInstructionBlock\"] = 21] = \"ProcessingInstructionBlock\";\n // Inline\n Type[Type[\"Escape\"] = 22] = \"Escape\";\n Type[Type[\"Entity\"] = 23] = \"Entity\";\n Type[Type[\"HardBreak\"] = 24] = \"HardBreak\";\n Type[Type[\"Emphasis\"] = 25] = \"Emphasis\";\n Type[Type[\"StrongEmphasis\"] = 26] = \"StrongEmphasis\";\n Type[Type[\"Link\"] = 27] = \"Link\";\n Type[Type[\"Image\"] = 28] = \"Image\";\n Type[Type[\"InlineCode\"] = 29] = \"InlineCode\";\n Type[Type[\"HTMLTag\"] = 30] = \"HTMLTag\";\n Type[Type[\"Comment\"] = 31] = \"Comment\";\n Type[Type[\"ProcessingInstruction\"] = 32] = \"ProcessingInstruction\";\n Type[Type[\"URL\"] = 33] = \"URL\";\n // Smaller tokens\n Type[Type[\"HeaderMark\"] = 34] = \"HeaderMark\";\n Type[Type[\"QuoteMark\"] = 35] = \"QuoteMark\";\n Type[Type[\"ListMark\"] = 36] = \"ListMark\";\n Type[Type[\"LinkMark\"] = 37] = \"LinkMark\";\n Type[Type[\"EmphasisMark\"] = 38] = \"EmphasisMark\";\n Type[Type[\"CodeMark\"] = 39] = \"CodeMark\";\n Type[Type[\"CodeText\"] = 40] = \"CodeText\";\n Type[Type[\"CodeInfo\"] = 41] = \"CodeInfo\";\n Type[Type[\"LinkTitle\"] = 42] = \"LinkTitle\";\n Type[Type[\"LinkLabel\"] = 43] = \"LinkLabel\";\n})(Type || (Type = {}));\n/// Data structure used to accumulate a block's content during [leaf\n/// block parsing](#BlockParser.leaf).\nclass LeafBlock {\n /// @internal\n constructor(\n /// The start position of the block.\n start, \n /// The block's text content.\n content) {\n this.start = start;\n this.content = content;\n /// @internal\n this.marks = [];\n /// The block parsers active for this block.\n this.parsers = [];\n }\n}\n/// Data structure used during block-level per-line parsing.\nclass Line {\n constructor() {\n /// The line's full text.\n this.text = \"\";\n /// The base indent provided by the composite contexts (that have\n /// been handled so far).\n this.baseIndent = 0;\n /// The string position corresponding to the base indent.\n this.basePos = 0;\n /// The number of contexts handled @internal\n this.depth = 0;\n /// Any markers (i.e. block quote markers) parsed for the contexts. @internal\n this.markers = [];\n /// The position of the next non-whitespace character beyond any\n /// list, blockquote, or other composite block markers.\n this.pos = 0;\n /// The column of the next non-whitespace character.\n this.indent = 0;\n /// The character code of the character after `pos`.\n this.next = -1;\n }\n /// @internal\n forward() {\n if (this.basePos > this.pos)\n this.forwardInner();\n }\n /// @internal\n forwardInner() {\n let newPos = this.skipSpace(this.basePos);\n this.indent = this.countIndent(newPos, this.pos, this.indent);\n this.pos = newPos;\n this.next = newPos == this.text.length ? -1 : this.text.charCodeAt(newPos);\n }\n /// Skip whitespace after the given position, return the position of\n /// the next non-space character or the end of the line if there's\n /// only space after `from`.\n skipSpace(from) { return skipSpace(this.text, from); }\n /// @internal\n reset(text) {\n this.text = text;\n this.baseIndent = this.basePos = this.pos = this.indent = 0;\n this.forwardInner();\n this.depth = 1;\n while (this.markers.length)\n this.markers.pop();\n }\n /// Move the line's base position forward to the given position.\n /// This should only be called by composite [block\n /// parsers](#BlockParser.parse) or [markup skipping\n /// functions](#NodeSpec.composite).\n moveBase(to) {\n this.basePos = to;\n this.baseIndent = this.countIndent(to, this.pos, this.indent);\n }\n /// Move the line's base position forward to the given _column_.\n moveBaseColumn(indent) {\n this.baseIndent = indent;\n this.basePos = this.findColumn(indent);\n }\n /// Store a composite-block-level marker. Should be called from\n /// [markup skipping functions](#NodeSpec.composite) when they\n /// consume any non-whitespace characters.\n addMarker(elt) {\n this.markers.push(elt);\n }\n /// Find the column position at `to`, optionally starting at a given\n /// position and column.\n countIndent(to, from = 0, indent = 0) {\n for (let i = from; i < to; i++)\n indent += this.text.charCodeAt(i) == 9 ? 4 - indent % 4 : 1;\n return indent;\n }\n /// Find the position corresponding to the given column.\n findColumn(goal) {\n let i = 0;\n for (let indent = 0; i < this.text.length && indent < goal; i++)\n indent += this.text.charCodeAt(i) == 9 ? 4 - indent % 4 : 1;\n return i;\n }\n /// @internal\n scrub() {\n if (!this.baseIndent)\n return this.text;\n let result = \"\";\n for (let i = 0; i < this.basePos; i++)\n result += \" \";\n return result + this.text.slice(this.basePos);\n }\n}\nfunction skipForList(bl, cx, line) {\n if (line.pos == line.text.length ||\n (bl != cx.block && line.indent >= cx.stack[line.depth + 1].value + line.baseIndent))\n return true;\n if (line.indent >= line.baseIndent + 4)\n return false;\n let size = (bl.type == Type.OrderedList ? isOrderedList : isBulletList)(line, cx, false);\n return size > 0 &&\n (bl.type != Type.BulletList || isHorizontalRule(line, cx, false) < 0) &&\n line.text.charCodeAt(line.pos + size - 1) == bl.value;\n}\nconst DefaultSkipMarkup = {\n [Type.Blockquote](bl, cx, line) {\n if (line.next != 62 /* '>' */)\n return false;\n line.markers.push(elt(Type.QuoteMark, cx.lineStart + line.pos, cx.lineStart + line.pos + 1));\n line.moveBase(line.pos + (space(line.text.charCodeAt(line.pos + 1)) ? 2 : 1));\n bl.end = cx.lineStart + line.text.length;\n return true;\n },\n [Type.ListItem](bl, _cx, line) {\n if (line.indent < line.baseIndent + bl.value && line.next > -1)\n return false;\n line.moveBaseColumn(line.baseIndent + bl.value);\n return true;\n },\n [Type.OrderedList]: skipForList,\n [Type.BulletList]: skipForList,\n [Type.Document]() { return true; }\n};\nfunction space(ch) { return ch == 32 || ch == 9 || ch == 10 || ch == 13; }\nfunction skipSpace(line, i = 0) {\n while (i < line.length && space(line.charCodeAt(i)))\n i++;\n return i;\n}\nfunction skipSpaceBack(line, i, to) {\n while (i > to && space(line.charCodeAt(i - 1)))\n i--;\n return i;\n}\nfunction isFencedCode(line) {\n if (line.next != 96 && line.next != 126 /* '`~' */)\n return -1;\n let pos = line.pos + 1;\n while (pos < line.text.length && line.text.charCodeAt(pos) == line.next)\n pos++;\n if (pos < line.pos + 3)\n return -1;\n if (line.next == 96)\n for (let i = pos; i < line.text.length; i++)\n if (line.text.charCodeAt(i) == 96)\n return -1;\n return pos;\n}\nfunction isBlockquote(line) {\n return line.next != 62 /* '>' */ ? -1 : line.text.charCodeAt(line.pos + 1) == 32 ? 2 : 1;\n}\nfunction isHorizontalRule(line, cx, breaking) {\n if (line.next != 42 && line.next != 45 && line.next != 95 /* '_-*' */)\n return -1;\n let count = 1;\n for (let pos = line.pos + 1; pos < line.text.length; pos++) {\n let ch = line.text.charCodeAt(pos);\n if (ch == line.next)\n count++;\n else if (!space(ch))\n return -1;\n }\n // Setext headers take precedence\n if (breaking && line.next == 45 && isSetextUnderline(line) > -1 && line.depth == cx.stack.length)\n return -1;\n return count < 3 ? -1 : 1;\n}\nfunction inList(cx, type) {\n for (let i = cx.stack.length - 1; i >= 0; i--)\n if (cx.stack[i].type == type)\n return true;\n return false;\n}\nfunction isBulletList(line, cx, breaking) {\n return (line.next == 45 || line.next == 43 || line.next == 42 /* '-+*' */) &&\n (line.pos == line.text.length - 1 || space(line.text.charCodeAt(line.pos + 1))) &&\n (!breaking || inList(cx, Type.BulletList) || line.skipSpace(line.pos + 2) < line.text.length) ? 1 : -1;\n}\nfunction isOrderedList(line, cx, breaking) {\n let pos = line.pos, next = line.next;\n for (;;) {\n if (next >= 48 && next <= 57 /* '0-9' */)\n pos++;\n else\n break;\n if (pos == line.text.length)\n return -1;\n next = line.text.charCodeAt(pos);\n }\n if (pos == line.pos || pos > line.pos + 9 ||\n (next != 46 && next != 41 /* '.)' */) ||\n (pos < line.text.length - 1 && !space(line.text.charCodeAt(pos + 1))) ||\n breaking && !inList(cx, Type.OrderedList) &&\n (line.skipSpace(pos + 1) == line.text.length || pos > line.pos + 1 || line.next != 49 /* '1' */))\n return -1;\n return pos + 1 - line.pos;\n}\nfunction isAtxHeading(line) {\n if (line.next != 35 /* '#' */)\n return -1;\n let pos = line.pos + 1;\n while (pos < line.text.length && line.text.charCodeAt(pos) == 35)\n pos++;\n if (pos < line.text.length && line.text.charCodeAt(pos) != 32)\n return -1;\n let size = pos - line.pos;\n return size > 6 ? -1 : size;\n}\nfunction isSetextUnderline(line) {\n if (line.next != 45 && line.next != 61 /* '-=' */ || line.indent >= line.baseIndent + 4)\n return -1;\n let pos = line.pos + 1;\n while (pos < line.text.length && line.text.charCodeAt(pos) == line.next)\n pos++;\n let end = pos;\n while (pos < line.text.length && space(line.text.charCodeAt(pos)))\n pos++;\n return pos == line.text.length ? end : -1;\n}\nconst EmptyLine = /^[ \\t]*$/, CommentEnd = /-->/, ProcessingEnd = /\\?>/;\nconst HTMLBlockStyle = [\n [/^<(?:script|pre|style)(?:\\s|>|$)/i, /<\\/(?:script|pre|style)>/i],\n [/^\\s*/i.exec(after);\n if (comment)\n return cx.append(elt(Type.Comment, start, start + 1 + comment[0].length));\n let procInst = /^\\?[^]*?\\?>/.exec(after);\n if (procInst)\n return cx.append(elt(Type.ProcessingInstruction, start, start + 1 + procInst[0].length));\n let m = /^(?:![A-Z][^]*?>|!\\[CDATA\\[[^]*?\\]\\]>|\\/\\s*[a-zA-Z][\\w-]*\\s*>|\\s*[a-zA-Z][\\w-]*(\\s+[a-zA-Z:_][\\w-.:]*(?:\\s*=\\s*(?:[^\\s\"'=<>`]+|'[^']*'|\"[^\"]*\"))?)*\\s*(\\/\\s*)?>)/.exec(after);\n if (!m)\n return -1;\n return cx.append(elt(Type.HTMLTag, start, start + 1 + m[0].length));\n },\n Emphasis(cx, next, start) {\n if (next != 95 && next != 42)\n return -1;\n let pos = start + 1;\n while (cx.char(pos) == next)\n pos++;\n let before = cx.slice(start - 1, start), after = cx.slice(pos, pos + 1);\n let pBefore = Punctuation.test(before), pAfter = Punctuation.test(after);\n let sBefore = /\\s|^$/.test(before), sAfter = /\\s|^$/.test(after);\n let leftFlanking = !sAfter && (!pAfter || sBefore || pBefore);\n let rightFlanking = !sBefore && (!pBefore || sAfter || pAfter);\n let canOpen = leftFlanking && (next == 42 || !rightFlanking || pBefore);\n let canClose = rightFlanking && (next == 42 || !leftFlanking || pAfter);\n return cx.append(new InlineDelimiter(next == 95 ? EmphasisUnderscore : EmphasisAsterisk, start, pos, (canOpen ? 1 /* Mark.Open */ : 0) | (canClose ? 2 /* Mark.Close */ : 0)));\n },\n HardBreak(cx, next, start) {\n if (next == 92 /* '\\\\' */ && cx.char(start + 1) == 10 /* '\\n' */)\n return cx.append(elt(Type.HardBreak, start, start + 2));\n if (next == 32) {\n let pos = start + 1;\n while (cx.char(pos) == 32)\n pos++;\n if (cx.char(pos) == 10 && pos >= start + 2)\n return cx.append(elt(Type.HardBreak, start, pos + 1));\n }\n return -1;\n },\n Link(cx, next, start) {\n return next == 91 /* '[' */ ? cx.append(new InlineDelimiter(LinkStart, start, start + 1, 1 /* Mark.Open */)) : -1;\n },\n Image(cx, next, start) {\n return next == 33 /* '!' */ && cx.char(start + 1) == 91 /* '[' */\n ? cx.append(new InlineDelimiter(ImageStart, start, start + 2, 1 /* Mark.Open */)) : -1;\n },\n LinkEnd(cx, next, start) {\n if (next != 93 /* ']' */)\n return -1;\n // Scanning back to the next link/image start marker\n for (let i = cx.parts.length - 1; i >= 0; i--) {\n let part = cx.parts[i];\n if (part instanceof InlineDelimiter && (part.type == LinkStart || part.type == ImageStart)) {\n // If this one has been set invalid (because it would produce\n // a nested link) or there's no valid link here ignore both.\n if (!part.side || cx.skipSpace(part.to) == start && !/[(\\[]/.test(cx.slice(start + 1, start + 2))) {\n cx.parts[i] = null;\n return -1;\n }\n // Finish the content and replace the entire range in\n // this.parts with the link/image node.\n let content = cx.takeContent(i);\n let link = cx.parts[i] = finishLink(cx, content, part.type == LinkStart ? Type.Link : Type.Image, part.from, start + 1);\n // Set any open-link markers before this link to invalid.\n if (part.type == LinkStart)\n for (let j = 0; j < i; j++) {\n let p = cx.parts[j];\n if (p instanceof InlineDelimiter && p.type == LinkStart)\n p.side = 0;\n }\n return link.to;\n }\n }\n return -1;\n }\n};\nfunction finishLink(cx, content, type, start, startPos) {\n let { text } = cx, next = cx.char(startPos), endPos = startPos;\n content.unshift(elt(Type.LinkMark, start, start + (type == Type.Image ? 2 : 1)));\n content.push(elt(Type.LinkMark, startPos - 1, startPos));\n if (next == 40 /* '(' */) {\n let pos = cx.skipSpace(startPos + 1);\n let dest = parseURL(text, pos - cx.offset, cx.offset), title;\n if (dest) {\n pos = cx.skipSpace(dest.to);\n title = parseLinkTitle(text, pos - cx.offset, cx.offset);\n if (title)\n pos = cx.skipSpace(title.to);\n }\n if (cx.char(pos) == 41 /* ')' */) {\n content.push(elt(Type.LinkMark, startPos, startPos + 1));\n endPos = pos + 1;\n if (dest)\n content.push(dest);\n if (title)\n content.push(title);\n content.push(elt(Type.LinkMark, pos, endPos));\n }\n }\n else if (next == 91 /* '[' */) {\n let label = parseLinkLabel(text, startPos - cx.offset, cx.offset, false);\n if (label) {\n content.push(label);\n endPos = label.to;\n }\n }\n return elt(type, start, endPos, content);\n}\n// These return `null` when falling off the end of the input, `false`\n// when parsing fails otherwise (for use in the incremental link\n// reference parser).\nfunction parseURL(text, start, offset) {\n let next = text.charCodeAt(start);\n if (next == 60 /* '<' */) {\n for (let pos = start + 1; pos < text.length; pos++) {\n let ch = text.charCodeAt(pos);\n if (ch == 62 /* '>' */)\n return elt(Type.URL, start + offset, pos + 1 + offset);\n if (ch == 60 || ch == 10 /* '<\\n' */)\n return false;\n }\n return null;\n }\n else {\n let depth = 0, pos = start;\n for (let escaped = false; pos < text.length; pos++) {\n let ch = text.charCodeAt(pos);\n if (space(ch)) {\n break;\n }\n else if (escaped) {\n escaped = false;\n }\n else if (ch == 40 /* '(' */) {\n depth++;\n }\n else if (ch == 41 /* ')' */) {\n if (!depth)\n break;\n depth--;\n }\n else if (ch == 92 /* '\\\\' */) {\n escaped = true;\n }\n }\n return pos > start ? elt(Type.URL, start + offset, pos + offset) : pos == text.length ? null : false;\n }\n}\nfunction parseLinkTitle(text, start, offset) {\n let next = text.charCodeAt(start);\n if (next != 39 && next != 34 && next != 40 /* '\"\\'(' */)\n return false;\n let end = next == 40 ? 41 : next;\n for (let pos = start + 1, escaped = false; pos < text.length; pos++) {\n let ch = text.charCodeAt(pos);\n if (escaped)\n escaped = false;\n else if (ch == end)\n return elt(Type.LinkTitle, start + offset, pos + 1 + offset);\n else if (ch == 92 /* '\\\\' */)\n escaped = true;\n }\n return null;\n}\nfunction parseLinkLabel(text, start, offset, requireNonWS) {\n for (let escaped = false, pos = start + 1, end = Math.min(text.length, pos + 999); pos < end; pos++) {\n let ch = text.charCodeAt(pos);\n if (escaped)\n escaped = false;\n else if (ch == 93 /* ']' */)\n return requireNonWS ? false : elt(Type.LinkLabel, start + offset, pos + 1 + offset);\n else {\n if (requireNonWS && !space(ch))\n requireNonWS = false;\n if (ch == 91 /* '[' */)\n return false;\n else if (ch == 92 /* '\\\\' */)\n escaped = true;\n }\n }\n return null;\n}\n/// Inline parsing functions get access to this context, and use it to\n/// read the content and emit syntax nodes.\nclass InlineContext {\n /// @internal\n constructor(\n /// The parser that is being used.\n parser, \n /// The text of this inline section.\n text, \n /// The starting offset of the section in the document.\n offset) {\n this.parser = parser;\n this.text = text;\n this.offset = offset;\n /// @internal\n this.parts = [];\n }\n /// Get the character code at the given (document-relative)\n /// position.\n char(pos) { return pos >= this.end ? -1 : this.text.charCodeAt(pos - this.offset); }\n /// The position of the end of this inline section.\n get end() { return this.offset + this.text.length; }\n /// Get a substring of this inline section. Again uses\n /// document-relative positions.\n slice(from, to) { return this.text.slice(from - this.offset, to - this.offset); }\n /// @internal\n append(elt) {\n this.parts.push(elt);\n return elt.to;\n }\n /// Add a [delimiter](#DelimiterType) at this given position. `open`\n /// and `close` indicate whether this delimiter is opening, closing,\n /// or both. Returns the end of the delimiter, for convenient\n /// returning from [parse functions](#InlineParser.parse).\n addDelimiter(type, from, to, open, close) {\n return this.append(new InlineDelimiter(type, from, to, (open ? 1 /* Mark.Open */ : 0) | (close ? 2 /* Mark.Close */ : 0)));\n }\n /// Add an inline element. Returns the end of the element.\n addElement(elt) {\n return this.append(elt);\n }\n /// Resolve markers between this.parts.length and from, wrapping matched markers in the\n /// appropriate node and updating the content of this.parts. @internal\n resolveMarkers(from) {\n // Scan forward, looking for closing tokens\n for (let i = from; i < this.parts.length; i++) {\n let close = this.parts[i];\n if (!(close instanceof InlineDelimiter && close.type.resolve && (close.side & 2 /* Mark.Close */)))\n continue;\n let emp = close.type == EmphasisUnderscore || close.type == EmphasisAsterisk;\n let closeSize = close.to - close.from;\n let open, j = i - 1;\n // Continue scanning for a matching opening token\n for (; j >= from; j--) {\n let part = this.parts[j];\n if (part instanceof InlineDelimiter && (part.side & 1 /* Mark.Open */) && part.type == close.type &&\n // Ignore emphasis delimiters where the character count doesn't match\n !(emp && ((close.side & 1 /* Mark.Open */) || (part.side & 2 /* Mark.Close */)) &&\n (part.to - part.from + closeSize) % 3 == 0 && ((part.to - part.from) % 3 || closeSize % 3))) {\n open = part;\n break;\n }\n }\n if (!open)\n continue;\n let type = close.type.resolve, content = [];\n let start = open.from, end = close.to;\n // Emphasis marker effect depends on the character count. Size consumed is minimum of the two\n // markers.\n if (emp) {\n let size = Math.min(2, open.to - open.from, closeSize);\n start = open.to - size;\n end = close.from + size;\n type = size == 1 ? \"Emphasis\" : \"StrongEmphasis\";\n }\n // Move the covered region into content, optionally adding marker nodes\n if (open.type.mark)\n content.push(this.elt(open.type.mark, start, open.to));\n for (let k = j + 1; k < i; k++) {\n if (this.parts[k] instanceof Element)\n content.push(this.parts[k]);\n this.parts[k] = null;\n }\n if (close.type.mark)\n content.push(this.elt(close.type.mark, close.from, end));\n let element = this.elt(type, start, end, content);\n // If there are leftover emphasis marker characters, shrink the close/open markers. Otherwise, clear them.\n this.parts[j] = emp && open.from != start ? new InlineDelimiter(open.type, open.from, start, open.side) : null;\n let keep = this.parts[i] = emp && close.to != end ? new InlineDelimiter(close.type, end, close.to, close.side) : null;\n // Insert the new element in this.parts\n if (keep)\n this.parts.splice(i, 0, element);\n else\n this.parts[i] = element;\n }\n // Collect the elements remaining in this.parts into an array.\n let result = [];\n for (let i = from; i < this.parts.length; i++) {\n let part = this.parts[i];\n if (part instanceof Element)\n result.push(part);\n }\n return result;\n }\n /// Find an opening delimiter of the given type. Returns `null` if\n /// no delimiter is found, or an index that can be passed to\n /// [`takeContent`](#InlineContext.takeContent) otherwise.\n findOpeningDelimiter(type) {\n for (let i = this.parts.length - 1; i >= 0; i--) {\n let part = this.parts[i];\n if (part instanceof InlineDelimiter && part.type == type)\n return i;\n }\n return null;\n }\n /// Remove all inline elements and delimiters starting from the\n /// given index (which you should get from\n /// [`findOpeningDelimiter`](#InlineContext.findOpeningDelimiter),\n /// resolve delimiters inside of them, and return them as an array\n /// of elements.\n takeContent(startIndex) {\n let content = this.resolveMarkers(startIndex);\n this.parts.length = startIndex;\n return content;\n }\n /// Skip space after the given (document) position, returning either\n /// the position of the next non-space character or the end of the\n /// section.\n skipSpace(from) { return skipSpace(this.text, from - this.offset) + this.offset; }\n elt(type, from, to, children) {\n if (typeof type == \"string\")\n return elt(this.parser.getNodeType(type), from, to, children);\n return new TreeElement(type, from);\n }\n}\nfunction injectMarks(elements, marks) {\n if (!marks.length)\n return elements;\n if (!elements.length)\n return marks;\n let elts = elements.slice(), eI = 0;\n for (let mark of marks) {\n while (eI < elts.length && elts[eI].to < mark.to)\n eI++;\n if (eI < elts.length && elts[eI].from < mark.from) {\n let e = elts[eI];\n if (e instanceof Element)\n elts[eI] = new Element(e.type, e.from, e.to, injectMarks(e.children, [mark]));\n }\n else {\n elts.splice(eI++, 0, mark);\n }\n }\n return elts;\n}\n// These are blocks that can span blank lines, and should thus only be\n// reused if their next sibling is also being reused.\nconst NotLast = [Type.CodeBlock, Type.ListItem, Type.OrderedList, Type.BulletList];\nclass FragmentCursor {\n constructor(fragments, input) {\n this.fragments = fragments;\n this.input = input;\n // Index into fragment array\n this.i = 0;\n // Active fragment\n this.fragment = null;\n this.fragmentEnd = -1;\n // Cursor into the current fragment, if any. When `moveTo` returns\n // true, this points at the first block after `pos`.\n this.cursor = null;\n if (fragments.length)\n this.fragment = fragments[this.i++];\n }\n nextFragment() {\n this.fragment = this.i < this.fragments.length ? this.fragments[this.i++] : null;\n this.cursor = null;\n this.fragmentEnd = -1;\n }\n moveTo(pos, lineStart) {\n while (this.fragment && this.fragment.to <= pos)\n this.nextFragment();\n if (!this.fragment || this.fragment.from > (pos ? pos - 1 : 0))\n return false;\n if (this.fragmentEnd < 0) {\n let end = this.fragment.to;\n while (end > 0 && this.input.read(end - 1, end) != \"\\n\")\n end--;\n this.fragmentEnd = end ? end - 1 : 0;\n }\n let c = this.cursor;\n if (!c) {\n c = this.cursor = this.fragment.tree.cursor();\n c.firstChild();\n }\n let rPos = pos + this.fragment.offset;\n while (c.to <= rPos)\n if (!c.parent())\n return false;\n for (;;) {\n if (c.from >= rPos)\n return this.fragment.from <= lineStart;\n if (!c.childAfter(rPos))\n return false;\n }\n }\n matches(hash) {\n let tree = this.cursor.tree;\n return tree && tree.prop(NodeProp.contextHash) == hash;\n }\n takeNodes(cx) {\n let cur = this.cursor, off = this.fragment.offset, fragEnd = this.fragmentEnd - (this.fragment.openEnd ? 1 : 0);\n let start = cx.absoluteLineStart, end = start, blockI = cx.block.children.length;\n let prevEnd = end, prevI = blockI;\n for (;;) {\n if (cur.to - off > fragEnd) {\n if (cur.type.isAnonymous && cur.firstChild())\n continue;\n break;\n }\n let pos = toRelative(cur.from - off, cx.ranges);\n if (cur.to - off <= cx.ranges[cx.rangeI].to) { // Fits in current range\n cx.addNode(cur.tree, pos);\n }\n else {\n let dummy = new Tree(cx.parser.nodeSet.types[Type.Paragraph], [], [], 0, cx.block.hashProp);\n cx.reusePlaceholders.set(dummy, cur.tree);\n cx.addNode(dummy, pos);\n }\n // Taken content must always end in a block, because incremental\n // parsing happens on block boundaries. Never stop directly\n // after an indented code block, since those can continue after\n // any number of blank lines.\n if (cur.type.is(\"Block\")) {\n if (NotLast.indexOf(cur.type.id) < 0) {\n end = cur.to - off;\n blockI = cx.block.children.length;\n }\n else {\n end = prevEnd;\n blockI = prevI;\n prevEnd = cur.to - off;\n prevI = cx.block.children.length;\n }\n }\n if (!cur.nextSibling())\n break;\n }\n while (cx.block.children.length > blockI) {\n cx.block.children.pop();\n cx.block.positions.pop();\n }\n return end - start;\n }\n}\n// Convert an input-stream-relative position to a\n// Markdown-doc-relative position by subtracting the size of all input\n// gaps before `abs`.\nfunction toRelative(abs, ranges) {\n let pos = abs;\n for (let i = 1; i < ranges.length; i++) {\n let gapFrom = ranges[i - 1].to, gapTo = ranges[i].from;\n if (gapFrom < abs)\n pos -= gapTo - gapFrom;\n }\n return pos;\n}\nconst markdownHighlighting = styleTags({\n \"Blockquote/...\": tags.quote,\n HorizontalRule: tags.contentSeparator,\n \"ATXHeading1/... SetextHeading1/...\": tags.heading1,\n \"ATXHeading2/... SetextHeading2/...\": tags.heading2,\n \"ATXHeading3/...\": tags.heading3,\n \"ATXHeading4/...\": tags.heading4,\n \"ATXHeading5/...\": tags.heading5,\n \"ATXHeading6/...\": tags.heading6,\n \"Comment CommentBlock\": tags.comment,\n Escape: tags.escape,\n Entity: tags.character,\n \"Emphasis/...\": tags.emphasis,\n \"StrongEmphasis/...\": tags.strong,\n \"Link/... Image/...\": tags.link,\n \"OrderedList/... BulletList/...\": tags.list,\n \"BlockQuote/...\": tags.quote,\n \"InlineCode CodeText\": tags.monospace,\n URL: tags.url,\n \"HeaderMark HardBreak QuoteMark ListMark LinkMark EmphasisMark CodeMark\": tags.processingInstruction,\n \"CodeInfo LinkLabel\": tags.labelName,\n LinkTitle: tags.string,\n Paragraph: tags.content\n});\n/// The default CommonMark parser.\nconst parser = new MarkdownParser(new NodeSet(nodeTypes).extend(markdownHighlighting), Object.keys(DefaultBlockParsers).map(n => DefaultBlockParsers[n]), Object.keys(DefaultBlockParsers).map(n => DefaultLeafBlocks[n]), Object.keys(DefaultBlockParsers), DefaultEndLeaf, DefaultSkipMarkup, Object.keys(DefaultInline).map(n => DefaultInline[n]), Object.keys(DefaultInline), []);\n\nfunction leftOverSpace(node, from, to) {\n let ranges = [];\n for (let n = node.firstChild, pos = from;; n = n.nextSibling) {\n let nextPos = n ? n.from : to;\n if (nextPos > pos)\n ranges.push({ from: pos, to: nextPos });\n if (!n)\n break;\n pos = n.to;\n }\n return ranges;\n}\n/// Create a Markdown extension to enable nested parsing on code\n/// blocks and/or embedded HTML.\nfunction parseCode(config) {\n let { codeParser, htmlParser } = config;\n let wrap = parseMixed((node, input) => {\n let id = node.type.id;\n if (codeParser && (id == Type.CodeBlock || id == Type.FencedCode)) {\n let info = \"\";\n if (id == Type.FencedCode) {\n let infoNode = node.node.getChild(Type.CodeInfo);\n if (infoNode)\n info = input.read(infoNode.from, infoNode.to);\n }\n let parser = codeParser(info);\n if (parser)\n return { parser, overlay: node => node.type.id == Type.CodeText };\n }\n else if (htmlParser && (id == Type.HTMLBlock || id == Type.HTMLTag)) {\n return { parser: htmlParser, overlay: leftOverSpace(node.node, node.from, node.to) };\n }\n return null;\n });\n return { wrap };\n}\n\nconst StrikethroughDelim = { resolve: \"Strikethrough\", mark: \"StrikethroughMark\" };\n/// An extension that implements\n/// [GFM-style](https://github.github.com/gfm/#strikethrough-extension-)\n/// Strikethrough syntax using `~~` delimiters.\nconst Strikethrough = {\n defineNodes: [{\n name: \"Strikethrough\",\n style: { \"Strikethrough/...\": tags.strikethrough }\n }, {\n name: \"StrikethroughMark\",\n style: tags.processingInstruction\n }],\n parseInline: [{\n name: \"Strikethrough\",\n parse(cx, next, pos) {\n if (next != 126 /* '~' */ || cx.char(pos + 1) != 126 || cx.char(pos + 2) == 126)\n return -1;\n let before = cx.slice(pos - 1, pos), after = cx.slice(pos + 2, pos + 3);\n let sBefore = /\\s|^$/.test(before), sAfter = /\\s|^$/.test(after);\n let pBefore = Punctuation.test(before), pAfter = Punctuation.test(after);\n return cx.addDelimiter(StrikethroughDelim, pos, pos + 2, !sAfter && (!pAfter || sBefore || pBefore), !sBefore && (!pBefore || sAfter || pAfter));\n },\n after: \"Emphasis\"\n }]\n};\nfunction parseRow(cx, line, startI = 0, elts, offset = 0) {\n let count = 0, first = true, cellStart = -1, cellEnd = -1, esc = false;\n let parseCell = () => {\n elts.push(cx.elt(\"TableCell\", offset + cellStart, offset + cellEnd, cx.parser.parseInline(line.slice(cellStart, cellEnd), offset + cellStart)));\n };\n for (let i = startI; i < line.length; i++) {\n let next = line.charCodeAt(i);\n if (next == 124 /* '|' */ && !esc) {\n if (!first || cellStart > -1)\n count++;\n first = false;\n if (elts) {\n if (cellStart > -1)\n parseCell();\n elts.push(cx.elt(\"TableDelimiter\", i + offset, i + offset + 1));\n }\n cellStart = cellEnd = -1;\n }\n else if (esc || next != 32 && next != 9) {\n if (cellStart < 0)\n cellStart = i;\n cellEnd = i + 1;\n }\n esc = !esc && next == 92;\n }\n if (cellStart > -1) {\n count++;\n if (elts)\n parseCell();\n }\n return count;\n}\nfunction hasPipe(str, start) {\n for (let i = start; i < str.length; i++) {\n let next = str.charCodeAt(i);\n if (next == 124 /* '|' */)\n return true;\n if (next == 92 /* '\\\\' */)\n i++;\n }\n return false;\n}\nconst delimiterLine = /^\\|?(\\s*:?-+:?\\s*\\|)+(\\s*:?-+:?\\s*)?$/;\nclass TableParser {\n constructor() {\n // Null means we haven't seen the second line yet, false means this\n // isn't a table, and an array means this is a table and we've\n // parsed the given rows so far.\n this.rows = null;\n }\n nextLine(cx, line, leaf) {\n if (this.rows == null) { // Second line\n this.rows = false;\n let lineText;\n if ((line.next == 45 || line.next == 58 || line.next == 124 /* '-:|' */) &&\n delimiterLine.test(lineText = line.text.slice(line.pos))) {\n let firstRow = [], firstCount = parseRow(cx, leaf.content, 0, firstRow, leaf.start);\n if (firstCount == parseRow(cx, lineText, line.pos))\n this.rows = [cx.elt(\"TableHeader\", leaf.start, leaf.start + leaf.content.length, firstRow),\n cx.elt(\"TableDelimiter\", cx.lineStart + line.pos, cx.lineStart + line.text.length)];\n }\n }\n else if (this.rows) { // Line after the second\n let content = [];\n parseRow(cx, line.text, line.pos, content, cx.lineStart);\n this.rows.push(cx.elt(\"TableRow\", cx.lineStart + line.pos, cx.lineStart + line.text.length, content));\n }\n return false;\n }\n finish(cx, leaf) {\n if (!this.rows)\n return false;\n cx.addLeafElement(leaf, cx.elt(\"Table\", leaf.start, leaf.start + leaf.content.length, this.rows));\n return true;\n }\n}\n/// This extension provides\n/// [GFM-style](https://github.github.com/gfm/#tables-extension-)\n/// tables, using syntax like this:\n///\n/// ```\n/// | head 1 | head 2 |\n/// | --- | --- |\n/// | cell 1 | cell 2 |\n/// ```\nconst Table = {\n defineNodes: [\n { name: \"Table\", block: true },\n { name: \"TableHeader\", style: { \"TableHeader/...\": tags.heading } },\n \"TableRow\",\n { name: \"TableCell\", style: tags.content },\n { name: \"TableDelimiter\", style: tags.processingInstruction },\n ],\n parseBlock: [{\n name: \"Table\",\n leaf(_, leaf) { return hasPipe(leaf.content, 0) ? new TableParser : null; },\n endLeaf(cx, line, leaf) {\n if (leaf.parsers.some(p => p instanceof TableParser) || !hasPipe(line.text, line.basePos))\n return false;\n let next = cx.scanLine(cx.absoluteLineEnd + 1).text;\n return delimiterLine.test(next) && parseRow(cx, line.text, line.basePos) == parseRow(cx, next, line.basePos);\n },\n before: \"SetextHeading\"\n }]\n};\nclass TaskParser {\n nextLine() { return false; }\n finish(cx, leaf) {\n cx.addLeafElement(leaf, cx.elt(\"Task\", leaf.start, leaf.start + leaf.content.length, [\n cx.elt(\"TaskMarker\", leaf.start, leaf.start + 3),\n ...cx.parser.parseInline(leaf.content.slice(3), leaf.start + 3)\n ]));\n return true;\n }\n}\n/// Extension providing\n/// [GFM-style](https://github.github.com/gfm/#task-list-items-extension-)\n/// task list items, where list items can be prefixed with `[ ]` or\n/// `[x]` to add a checkbox.\nconst TaskList = {\n defineNodes: [\n { name: \"Task\", block: true, style: tags.list },\n { name: \"TaskMarker\", style: tags.atom }\n ],\n parseBlock: [{\n name: \"TaskList\",\n leaf(cx, leaf) {\n return /^\\[[ xX]\\][ \\t]/.test(leaf.content) && cx.parentType().name == \"ListItem\" ? new TaskParser : null;\n },\n after: \"SetextHeading\"\n }]\n};\nconst autolinkRE = /(www\\.)|(https?:\\/\\/)|([\\w.+-]+@)|(mailto:|xmpp:)/gy;\nconst urlRE = /[\\w-]+(\\.\\w+(\\.\\w+)?)(\\/[^\\s<]*)?/gy;\nconst emailRE = /[\\w.+-]+@[\\w-]+\\.[\\w.-]+/gy;\nconst xmppResourceRE = /\\/[a-zA-Z\\d@.]+/gy;\nfunction count(str, from, to, ch) {\n let result = 0;\n for (let i = from; i < to; i++)\n if (str[i] == ch)\n result++;\n return result;\n}\nfunction autolinkURLEnd(text, from) {\n urlRE.lastIndex = from;\n let m = urlRE.exec(text);\n if (!m)\n return -1;\n let end = from + m[0].length;\n for (;;) {\n let last = text[end - 1], m;\n if (/[?!.,:*_~]/.test(last) ||\n last == \")\" && count(text, from, end, \")\") > count(text, from, end, \"(\"))\n end--;\n else if (last == \";\" && (m = /&(?:#\\d+|#x[a-f\\d]+|\\w+);$/.exec(text.slice(from, end))))\n end = from + m.index;\n else\n break;\n }\n return end;\n}\nfunction autolinkEmailEnd(text, from) {\n emailRE.lastIndex = from;\n let m = emailRE.exec(text);\n if (!m)\n return -1;\n let last = m[0][m[0].length - 1];\n return last == \"_\" || last == \"-\" ? -1 : from + m[0].length - (last == \".\" ? 1 : 0);\n}\n/// Extension that implements autolinking for\n/// `www.`/`http://`/`https://`/`mailto:`/`xmpp:` URLs and email\n/// addresses.\nconst Autolink = {\n parseInline: [{\n name: \"Autolink\",\n parse(cx, next, absPos) {\n let pos = absPos - cx.offset;\n autolinkRE.lastIndex = pos;\n let m = autolinkRE.exec(cx.text), end = -1;\n if (!m)\n return -1;\n if (m[1] || m[2]) { // www., http://\n end = autolinkURLEnd(cx.text, pos + m[0].length);\n }\n else if (m[3]) { // email address\n end = autolinkEmailEnd(cx.text, pos);\n }\n else { // mailto:/xmpp:\n end = autolinkEmailEnd(cx.text, pos + m[0].length);\n if (end > -1 && m[0] == \"xmpp:\") {\n xmppResourceRE.lastIndex = end;\n m = xmppResourceRE.exec(cx.text);\n if (m)\n end = m.index + m[0].length;\n }\n }\n if (end < 0)\n return -1;\n cx.addElement(cx.elt(\"URL\", absPos, end + cx.offset));\n return end + cx.offset;\n }\n }]\n};\n/// Extension bundle containing [`Table`](#Table),\n/// [`TaskList`](#TaskList), [`Strikethrough`](#Strikethrough), and\n/// [`Autolink`](#Autolink).\nconst GFM = [Table, TaskList, Strikethrough, Autolink];\nfunction parseSubSuper(ch, node, mark) {\n return (cx, next, pos) => {\n if (next != ch || cx.char(pos + 1) == ch)\n return -1;\n let elts = [cx.elt(mark, pos, pos + 1)];\n for (let i = pos + 1; i < cx.end; i++) {\n let next = cx.char(i);\n if (next == ch)\n return cx.addElement(cx.elt(node, pos, i + 1, elts.concat(cx.elt(mark, i, i + 1))));\n if (next == 92 /* '\\\\' */)\n elts.push(cx.elt(\"Escape\", i, i++ + 2));\n if (space(next))\n break;\n }\n return -1;\n };\n}\n/// Extension providing\n/// [Pandoc-style](https://pandoc.org/MANUAL.html#superscripts-and-subscripts)\n/// superscript using `^` markers.\nconst Superscript = {\n defineNodes: [\n { name: \"Superscript\", style: tags.special(tags.content) },\n { name: \"SuperscriptMark\", style: tags.processingInstruction }\n ],\n parseInline: [{\n name: \"Superscript\",\n parse: parseSubSuper(94 /* '^' */, \"Superscript\", \"SuperscriptMark\")\n }]\n};\n/// Extension providing\n/// [Pandoc-style](https://pandoc.org/MANUAL.html#superscripts-and-subscripts)\n/// subscript using `~` markers.\nconst Subscript = {\n defineNodes: [\n { name: \"Subscript\", style: tags.special(tags.content) },\n { name: \"SubscriptMark\", style: tags.processingInstruction }\n ],\n parseInline: [{\n name: \"Subscript\",\n parse: parseSubSuper(126 /* '~' */, \"Subscript\", \"SubscriptMark\")\n }]\n};\n/// Extension that parses two colons with only letters, underscores,\n/// and numbers between them as `Emoji` nodes.\nconst Emoji = {\n defineNodes: [{ name: \"Emoji\", style: tags.character }],\n parseInline: [{\n name: \"Emoji\",\n parse(cx, next, pos) {\n let match;\n if (next != 58 /* ':' */ || !(match = /^[a-zA-Z_0-9]+:/.exec(cx.slice(pos + 1, cx.end))))\n return -1;\n return cx.addElement(cx.elt(\"Emoji\", pos, pos + 1 + match[0].length));\n }\n }]\n};\n\nexport { Autolink, BlockContext, Element, Emoji, GFM, InlineContext, LeafBlock, Line, MarkdownParser, Strikethrough, Subscript, Superscript, Table, TaskList, parseCode, parser };\n","import { EditorSelection, countColumn, Prec, EditorState } from '@codemirror/state';\nimport { keymap } from '@codemirror/view';\nimport { defineLanguageFacet, foldNodeProp, indentNodeProp, languageDataProp, foldService, syntaxTree, Language, LanguageDescription, ParseContext, indentUnit, LanguageSupport } from '@codemirror/language';\nimport { CompletionContext } from '@codemirror/autocomplete';\nimport { parser, GFM, Subscript, Superscript, Emoji, MarkdownParser, parseCode } from '@lezer/markdown';\nimport { html, htmlCompletionSource } from '@codemirror/lang-html';\nimport { NodeProp } from '@lezer/common';\n\nconst data = /*@__PURE__*/defineLanguageFacet({ commentTokens: { block: { open: \"\" } } });\nconst headingProp = /*@__PURE__*/new NodeProp();\nconst commonmark = /*@__PURE__*/parser.configure({\n props: [\n /*@__PURE__*/foldNodeProp.add(type => {\n return !type.is(\"Block\") || type.is(\"Document\") || isHeading(type) != null ? undefined\n : (tree, state) => ({ from: state.doc.lineAt(tree.from).to, to: tree.to });\n }),\n /*@__PURE__*/headingProp.add(isHeading),\n /*@__PURE__*/indentNodeProp.add({\n Document: () => null\n }),\n /*@__PURE__*/languageDataProp.add({\n Document: data\n })\n ]\n});\nfunction isHeading(type) {\n let match = /^(?:ATX|Setext)Heading(\\d)$/.exec(type.name);\n return match ? +match[1] : undefined;\n}\nfunction findSectionEnd(headerNode, level) {\n let last = headerNode;\n for (;;) {\n let next = last.nextSibling, heading;\n if (!next || (heading = isHeading(next.type)) != null && heading <= level)\n break;\n last = next;\n }\n return last.to;\n}\nconst headerIndent = /*@__PURE__*/foldService.of((state, start, end) => {\n for (let node = syntaxTree(state).resolveInner(end, -1); node; node = node.parent) {\n if (node.from < start)\n break;\n let heading = node.type.prop(headingProp);\n if (heading == null)\n continue;\n let upto = findSectionEnd(node, heading);\n if (upto > end)\n return { from: end, to: upto };\n }\n return null;\n});\nfunction mkLang(parser) {\n return new Language(data, parser, [headerIndent], \"markdown\");\n}\n/**\nLanguage support for strict CommonMark.\n*/\nconst commonmarkLanguage = /*@__PURE__*/mkLang(commonmark);\nconst extended = /*@__PURE__*/commonmark.configure([GFM, Subscript, Superscript, Emoji]);\n/**\nLanguage support for [GFM](https://github.github.com/gfm/) plus\nsubscript, superscript, and emoji syntax.\n*/\nconst markdownLanguage = /*@__PURE__*/mkLang(extended);\nfunction getCodeParser(languages, defaultLanguage) {\n return (info) => {\n if (info && languages) {\n let found = null;\n // Strip anything after whitespace\n info = /\\S*/.exec(info)[0];\n if (typeof languages == \"function\")\n found = languages(info);\n else\n found = LanguageDescription.matchLanguageName(languages, info, true);\n if (found instanceof LanguageDescription)\n return found.support ? found.support.language.parser : ParseContext.getSkippingParser(found.load());\n else if (found)\n return found.parser;\n }\n return defaultLanguage ? defaultLanguage.parser : null;\n };\n}\n\nclass Context {\n constructor(node, from, to, spaceBefore, spaceAfter, type, item) {\n this.node = node;\n this.from = from;\n this.to = to;\n this.spaceBefore = spaceBefore;\n this.spaceAfter = spaceAfter;\n this.type = type;\n this.item = item;\n }\n blank(maxWidth, trailing = true) {\n let result = this.spaceBefore + (this.node.name == \"Blockquote\" ? \">\" : \"\");\n if (maxWidth != null) {\n while (result.length < maxWidth)\n result += \" \";\n return result;\n }\n else {\n for (let i = this.to - this.from - result.length - this.spaceAfter.length; i > 0; i--)\n result += \" \";\n return result + (trailing ? this.spaceAfter : \"\");\n }\n }\n marker(doc, add) {\n let number = this.node.name == \"OrderedList\" ? String((+itemNumber(this.item, doc)[2] + add)) : \"\";\n return this.spaceBefore + number + this.type + this.spaceAfter;\n }\n}\nfunction getContext(node, doc) {\n let nodes = [];\n for (let cur = node; cur && cur.name != \"Document\"; cur = cur.parent) {\n if (cur.name == \"ListItem\" || cur.name == \"Blockquote\" || cur.name == \"FencedCode\")\n nodes.push(cur);\n }\n let context = [];\n for (let i = nodes.length - 1; i >= 0; i--) {\n let node = nodes[i], match;\n let line = doc.lineAt(node.from), startPos = node.from - line.from;\n if (node.name == \"FencedCode\") {\n context.push(new Context(node, startPos, startPos, \"\", \"\", \"\", null));\n }\n else if (node.name == \"Blockquote\" && (match = /^ *>( ?)/.exec(line.text.slice(startPos)))) {\n context.push(new Context(node, startPos, startPos + match[0].length, \"\", match[1], \">\", null));\n }\n else if (node.name == \"ListItem\" && node.parent.name == \"OrderedList\" &&\n (match = /^( *)\\d+([.)])( *)/.exec(line.text.slice(startPos)))) {\n let after = match[3], len = match[0].length;\n if (after.length >= 4) {\n after = after.slice(0, after.length - 4);\n len -= 4;\n }\n context.push(new Context(node.parent, startPos, startPos + len, match[1], after, match[2], node));\n }\n else if (node.name == \"ListItem\" && node.parent.name == \"BulletList\" &&\n (match = /^( *)([-+*])( {1,4}\\[[ xX]\\])?( +)/.exec(line.text.slice(startPos)))) {\n let after = match[4], len = match[0].length;\n if (after.length > 4) {\n after = after.slice(0, after.length - 4);\n len -= 4;\n }\n let type = match[2];\n if (match[3])\n type += match[3].replace(/[xX]/, ' ');\n context.push(new Context(node.parent, startPos, startPos + len, match[1], after, type, node));\n }\n }\n return context;\n}\nfunction itemNumber(item, doc) {\n return /^(\\s*)(\\d+)(?=[.)])/.exec(doc.sliceString(item.from, item.from + 10));\n}\nfunction renumberList(after, doc, changes, offset = 0) {\n for (let prev = -1, node = after;;) {\n if (node.name == \"ListItem\") {\n let m = itemNumber(node, doc);\n let number = +m[2];\n if (prev >= 0) {\n if (number != prev + 1)\n return;\n changes.push({ from: node.from + m[1].length, to: node.from + m[0].length, insert: String(prev + 2 + offset) });\n }\n prev = number;\n }\n let next = node.nextSibling;\n if (!next)\n break;\n node = next;\n }\n}\nfunction normalizeIndent(content, state) {\n let blank = /^[ \\t]*/.exec(content)[0].length;\n if (!blank || state.facet(indentUnit) != \"\\t\")\n return content;\n let col = countColumn(content, 4, blank);\n let space = \"\";\n for (let i = col; i > 0;) {\n if (i >= 4) {\n space += \"\\t\";\n i -= 4;\n }\n else {\n space += \" \";\n i--;\n }\n }\n return space + content.slice(blank);\n}\n/**\nThis command, when invoked in Markdown context with cursor\nselection(s), will create a new line with the markup for\nblockquotes and lists that were active on the old line. 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nagios_command ' +\n 'nagios_contact nagios_contactgroup nagios_host nagios_hostdependency ' +\n 'nagios_hostescalation nagios_hostextinfo nagios_hostgroup nagios_service ' +\n 'nagios_servicedependency nagios_serviceescalation nagios_serviceextinfo ' +\n 'nagios_servicegroup nagios_timeperiod name notify outiface package proto reject ' +\n 'resources router schedule scheduled_task selboolean selmodule service source ' +\n 'sport ssh_authorized_key sshkey stage state table tidy todest toports tosource ' +\n 'user vlan yumrepo zfs zone zpool');\n\n// After finding a start of a string ('|\") this function attempts to find the end;\n// If a variable is encountered along the way, we display it differently when it\n// is encapsulated in a double-quoted string.\nfunction tokenString(stream, state) {\n var current, prev, found_var = false;\n while (!stream.eol() && (current = stream.next()) != state.pending) {\n if (current === '$' && prev != '\\\\' && state.pending == '\"') {\n found_var = 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words(str) {\n var obj = {}, words = str.split(\" \");\n for (var i=0; i+\\-\\/^\\[\\]]/;\nvar isDoubleOperatorChar = /(:=|<=|>=|==|<>|\\.\\+|\\.\\-|\\.\\*|\\.\\/|\\.\\^)/;\nvar isDigit = /[0-9]/;\nvar isNonDigit = /[_a-zA-Z]/;\n\nfunction tokenLineComment(stream, state) {\n stream.skipToEnd();\n state.tokenize = null;\n return \"comment\";\n}\n\nfunction tokenBlockComment(stream, state) {\n var maybeEnd = false, ch;\n while (ch = stream.next()) {\n if (maybeEnd && ch == \"/\") {\n state.tokenize = null;\n break;\n }\n maybeEnd = (ch == \"*\");\n }\n return \"comment\";\n}\n\nfunction tokenString(stream, state) {\n var escaped = false, ch;\n while ((ch = stream.next()) != null) {\n if (ch == '\"' && !escaped) {\n state.tokenize = null;\n state.sol = false;\n break;\n }\n escaped = !escaped && ch == \"\\\\\";\n }\n\n return \"string\";\n}\n\nfunction tokenIdent(stream, state) {\n stream.eatWhile(isDigit);\n while (stream.eat(isDigit) || stream.eat(isNonDigit)) { }\n\n\n var cur = 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't3d', 'tag_names',\n 'tan', 'tanh', 'tek_color', 'temporary', 'terminal_size',\n 'tetra_clip', 'tetra_surface', 'tetra_volume', 'text', 'thin',\n 'thread', 'threed', 'tic', 'time_test2', 'timegen',\n 'timer', 'timestamp', 'timestamptovalues', 'tm_test', 'toc',\n 'total', 'trace', 'transpose', 'tri_surf', 'triangulate',\n 'trigrid', 'triql', 'trired', 'trisol', 'truncate_lun',\n 'ts_coef', 'ts_diff', 'ts_fcast', 'ts_smooth', 'tv',\n 'tvcrs', 'tvlct', 'tvrd', 'tvscl', 'typename',\n 'uindgen', 'uint', 'uintarr', 'ul64indgen', 'ulindgen',\n 'ulon64arr', 'ulonarr', 'ulong', 'ulong64', 'uniq',\n 'unsharp_mask', 'usersym', 'value_locate', 'variance', 'vector',\n 'vector_field', 'vel', 'velovect', 'vert_t3d', 'voigt',\n 'volume', 'voronoi', 'voxel_proj', 'wait', 'warp_tri',\n 'watershed', 'wdelete', 'wf_draw', 'where', 'widget_base',\n 'widget_button', 'widget_combobox', 'widget_control',\n 'widget_displaycontextmenu', 'widget_draw',\n 'widget_droplist', 'widget_event', 'widget_info',\n 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You probably shouldn't edit it.\nconst whitespace = 36,\n LineComment = 1,\n BlockComment = 2,\n String$1 = 3,\n Number = 4,\n Bool = 5,\n Null = 6,\n ParenL = 7,\n ParenR = 8,\n BraceL = 9,\n BraceR = 10,\n BracketL = 11,\n BracketR = 12,\n Semi = 13,\n Dot = 14,\n Operator = 15,\n Punctuation = 16,\n SpecialVar = 17,\n Identifier = 18,\n QuotedIdentifier = 19,\n Keyword = 20,\n Type = 21,\n Bits = 22,\n Bytes = 23,\n Builtin = 24;\n\nfunction isAlpha(ch) {\n return ch >= 65 /* A */ && ch <= 90 /* Z */ || ch >= 97 /* a */ && ch <= 122 /* z */ || ch >= 48 /* _0 */ && ch <= 57 /* _9 */;\n}\nfunction isHexDigit(ch) {\n return ch >= 48 /* _0 */ && ch <= 57 /* _9 */ || ch >= 97 /* a */ && ch <= 102 /* f */ || ch >= 65 /* A */ && ch <= 70 /* F */;\n}\nfunction readLiteral(input, endQuote, backslashEscapes) {\n for (let escaped = false;;) {\n if (input.next < 0)\n return;\n if (input.next == endQuote && !escaped) {\n input.advance();\n return;\n }\n escaped = backslashEscapes && !escaped && 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nesting new next no none not of old on only open option or order ordinality out outer output overlaps pad parameter partial path prepare preserve primary prior privileges procedure public read reads recursive redo ref references referencing relative release repeat resignal restrict result return returns revoke right role rollback rollup routine row rows savepoint schema scroll search second section select session session_user set sets signal similar size some space specific specifictype sql sqlexception sqlstate sqlwarning start state static system_user table temporary then timezone_hour timezone_minute to trailing transaction translation treat trigger under undo union unique unnest until update usage user using value values view when whenever where while with without work write year zone \";\nconst defaults = {\n backslashEscapes: false,\n hashComments: false,\n spaceAfterDashes: false,\n slashComments: false,\n doubleQuotedStrings: false,\n doubleDollarQuotedStrings: false,\n 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d.doubleQuotedStrings) {\n readLiteral(input, next, d.backslashEscapes);\n input.acceptToken(String$1);\n }\n else if (next == 35 /* Hash */ && d.hashComments ||\n next == 47 /* Slash */ && input.next == 47 /* Slash */ && d.slashComments) {\n eol(input);\n input.acceptToken(LineComment);\n }\n else if (next == 45 /* Dash */ && input.next == 45 /* Dash */ &&\n (!d.spaceAfterDashes || input.peek(1) == 32 /* Space */)) {\n eol(input);\n input.acceptToken(LineComment);\n }\n else if (next == 47 /* Slash */ && input.next == 42 /* Star */) {\n input.advance();\n for (let depth = 1;;) {\n let cur = input.next;\n if (input.next < 0)\n break;\n input.advance();\n if (cur == 42 /* Star */ && input.next == 47 /* Slash */) {\n depth--;\n input.advance();\n if (!depth)\n break;\n }\n else if (cur == 47 /* Slash */ && input.next == 42 /* Star */) {\n depth++;\n input.advance();\n }\n }\n input.acceptToken(BlockComment);\n }\n else if ((next == 101 /* e */ || next == 69 /* E */) && input.next == 39 /* SingleQuote */) {\n input.advance();\n readLiteral(input, 39 /* SingleQuote */, true);\n }\n else if ((next == 110 /* n */ || next == 78 /* N */) && input.next == 39 /* SingleQuote */ &&\n d.charSetCasts) {\n input.advance();\n readLiteral(input, 39 /* SingleQuote */, d.backslashEscapes);\n input.acceptToken(String$1);\n }\n else if (next == 95 /* Underscore */ && d.charSetCasts) {\n for (let i = 0;; i++) {\n if (input.next == 39 /* SingleQuote */ && i > 1) {\n input.advance();\n readLiteral(input, 39 /* SingleQuote */, d.backslashEscapes);\n input.acceptToken(String$1);\n break;\n }\n if (!isAlpha(input.next))\n break;\n input.advance();\n }\n }\n else if (d.plsqlQuotingMechanism &&\n (next == 113 /* q */ || next == 81 /* Q */) && input.next == 39 /* SingleQuote */ &&\n input.peek(1) > 0 && !inString(input.peek(1), Space)) {\n let openDelim = input.peek(1);\n input.advance(2);\n readPLSQLQuotedLiteral(input, openDelim);\n input.acceptToken(String$1);\n }\n else if (next == 40 /* ParenL */) {\n input.acceptToken(ParenL);\n }\n else if (next == 41 /* ParenR */) {\n input.acceptToken(ParenR);\n }\n else if (next == 123 /* BraceL */) {\n input.acceptToken(BraceL);\n }\n else if (next == 125 /* BraceR */) {\n input.acceptToken(BraceR);\n }\n else if (next == 91 /* BracketL */) {\n input.acceptToken(BracketL);\n }\n else if (next == 93 /* BracketR */) {\n input.acceptToken(BracketR);\n }\n else if (next == 59 /* Semi */) {\n input.acceptToken(Semi);\n }\n else if (d.unquotedBitLiterals && next == 48 /* _0 */ && input.next == 98 /* b */) {\n input.advance();\n readBits(input);\n input.acceptToken(Bits);\n }\n else if ((next == 98 /* b */ || next == 66 /* B */) && (input.next == 39 /* SingleQuote */ || input.next == 34 /* DoubleQuote */)) {\n const quoteStyle = input.next;\n input.advance();\n if (d.treatBitsAsBytes) {\n readLiteral(input, quoteStyle, d.backslashEscapes);\n input.acceptToken(Bytes);\n }\n else {\n readBits(input, quoteStyle);\n input.acceptToken(Bits);\n }\n }\n else if (next == 48 /* _0 */ && (input.next == 120 /* x */ || input.next == 88 /* X */) ||\n (next == 120 /* x */ || next == 88 /* X */) && input.next == 39 /* SingleQuote */) {\n let quoted = input.next == 39 /* SingleQuote */;\n input.advance();\n while (isHexDigit(input.next))\n input.advance();\n if (quoted && input.next == 39 /* SingleQuote */)\n input.advance();\n input.acceptToken(Number);\n }\n else if (next == 46 /* Dot */ && input.next >= 48 /* _0 */ && input.next <= 57 /* _9 */) {\n readNumber(input, true);\n input.acceptToken(Number);\n }\n else if (next == 46 /* Dot */) {\n input.acceptToken(Dot);\n }\n else if (next >= 48 /* _0 */ && next <= 57 /* _9 */) {\n readNumber(input, false);\n input.acceptToken(Number);\n }\n else if (inString(next, d.operatorChars)) {\n while (inString(input.next, d.operatorChars))\n input.advance();\n input.acceptToken(Operator);\n }\n else if (inString(next, d.specialVar)) {\n if (input.next == next)\n input.advance();\n readWordOrQuoted(input);\n input.acceptToken(SpecialVar);\n }\n else if (inString(next, d.identifierQuotes)) {\n readLiteral(input, next, false);\n input.acceptToken(QuotedIdentifier);\n }\n else if (next == 58 /* Colon */ || next == 44 /* Comma */) {\n input.acceptToken(Punctuation);\n }\n else if (isAlpha(next)) {\n let word = readWord(input, String.fromCharCode(next));\n input.acceptToken(input.next == 46 /* Dot */ ? Identifier : (_a = d.words[word.toLowerCase()]) !== null && _a !== void 0 ? _a : Identifier);\n }\n });\n}\nconst tokens = /*@__PURE__*/tokensFor(defaults);\n\n// This file was generated by lezer-generator. You probably shouldn't edit it.\nconst parser$1 = /*@__PURE__*/LRParser.deserialize({\n version: 14,\n states: \"%vQ]QQOOO#wQRO'#DSO$OQQO'#CwO%eQQO'#CxO%lQQO'#CyO%sQQO'#CzOOQQ'#DS'#DSOOQQ'#C}'#C}O'UQRO'#C{OOQQ'#Cv'#CvOOQQ'#C|'#C|Q]QQOOQOQQOOO'`QQO'#DOO(xQRO,59cO)PQQO,59cO)UQQO'#DSOOQQ,59d,59dO)cQQO,59dOOQQ,59e,59eO)jQQO,59eOOQQ,59f,59fO)qQQO,59fOOQQ-E6{-E6{OOQQ,59b,59bOOQQ-E6z-E6zOOQQ,59j,59jOOQQ-E6|-E6|O+VQRO1G.}O+^QQO,59cOOQQ1G/O1G/OOOQQ1G/P1G/POOQQ1G/Q1G/QP+kQQO'#C}O+rQQO1G.}O)PQQO,59cO,PQQO'#Cw\",\n stateData: \",[~OtOSPOSQOS~ORUOSUOTUOUUOVROXSOZTO]XO^QO_UO`UOaPObPOcPOdUOeUOfUOgUOhUO~O^]ORvXSvXTvXUvXVvXXvXZvX]vX_vX`vXavXbvXcvXdvXevXfvXgvXhvX~OsvX~P!jOa_Ob_Oc_O~ORUOSUOTUOUUOVROXSOZTO^tO_UO`UOa`Ob`Oc`OdUOeUOfUOgUOhUO~OWaO~P$ZOYcO~P$ZO[eO~P$ZORUOSUOTUOUUOVROXSOZTO^QO_UO`UOaPObPOcPOdUOeUOfUOgUOhUO~O]hOsoX~P%zOajObjOcjO~O^]ORkaSkaTkaUkaVkaXkaZka]ka_ka`kaakabkackadkaekafkagkahka~Oska~P'kO^]O~OWvXYvX[vX~P!jOWnO~P$ZOYoO~P$ZO[pO~P$ZO^]ORkiSkiTkiUkiVkiXkiZki]ki_ki`kiakibkickidkiekifkigkihki~Oski~P)xOWkaYka[ka~P'kO]hO~P$ZOWkiYki[ki~P)xOasObsOcsO~O\",\n goto: \"#hwPPPPPPPPPPPPPPPPPPPPPPPPPPx||||!Y!^!d!xPPP#[TYOZeUORSTWZbdfqT[OZQZORiZSWOZQbRQdSQfTZgWbdfqQ^PWk^lmrQl_Qm`RrseVORSTWZbdfq\",\n nodeNames: \"⚠ LineComment BlockComment String Number Bool Null ( ) { } [ ] ; . Operator Punctuation SpecialVar Identifier QuotedIdentifier Keyword Type Bits Bytes Builtin Script Statement CompositeIdentifier Parens Braces Brackets Statement\",\n maxTerm: 38,\n skippedNodes: [0,1,2],\n repeatNodeCount: 3,\n tokenData: \"RORO\",\n tokenizers: [0, tokens],\n topRules: {\"Script\":[0,25]},\n tokenPrec: 0\n});\n\nfunction tokenBefore(tree) {\n let cursor = tree.cursor().moveTo(tree.from, -1);\n while (/Comment/.test(cursor.name))\n cursor.moveTo(cursor.from, -1);\n return cursor.node;\n}\nfunction idName(doc, node) {\n let text = doc.sliceString(node.from, node.to);\n let quoted = /^([`'\"])(.*)\\1$/.exec(text);\n return quoted ? quoted[2] : text;\n}\nfunction plainID(node) {\n return node && (node.name == \"Identifier\" || node.name == \"QuotedIdentifier\");\n}\nfunction pathFor(doc, id) {\n if (id.name == \"CompositeIdentifier\") {\n let path = [];\n for (let ch = id.firstChild; ch; ch = ch.nextSibling)\n if (plainID(ch))\n path.push(idName(doc, ch));\n return path;\n }\n return [idName(doc, id)];\n}\nfunction parentsFor(doc, node) {\n for (let path = [];;) {\n if (!node || node.name != \".\")\n return path;\n let name = tokenBefore(node);\n if (!plainID(name))\n return path;\n path.unshift(idName(doc, name));\n node = tokenBefore(name);\n }\n}\nfunction sourceContext(state, startPos) {\n let pos = syntaxTree(state).resolveInner(startPos, -1);\n let aliases = getAliases(state.doc, pos);\n if (pos.name == \"Identifier\" || pos.name == \"QuotedIdentifier\" || pos.name == \"Keyword\") {\n return { from: pos.from,\n quoted: pos.name == \"QuotedIdentifier\" ? state.doc.sliceString(pos.from, pos.from + 1) : null,\n parents: parentsFor(state.doc, tokenBefore(pos)),\n aliases };\n }\n if (pos.name == \".\") {\n return { from: startPos, quoted: null, parents: parentsFor(state.doc, pos), aliases };\n }\n else {\n return { from: startPos, quoted: null, parents: [], empty: true, aliases };\n }\n}\nconst EndFrom = /*@__PURE__*/new Set(/*@__PURE__*/\"where group having order union intersect except all distinct limit offset fetch for\".split(\" \"));\nfunction getAliases(doc, at) {\n let statement;\n for (let parent = at; !statement; parent = parent.parent) {\n if (!parent)\n return null;\n if (parent.name == \"Statement\")\n statement = parent;\n }\n let aliases = null;\n for (let scan = statement.firstChild, sawFrom = false, prevID = null; scan; scan = scan.nextSibling) {\n let kw = scan.name == \"Keyword\" ? doc.sliceString(scan.from, scan.to).toLowerCase() : null;\n let alias = null;\n if (!sawFrom) {\n sawFrom = kw == \"from\";\n }\n else if (kw == \"as\" && prevID && plainID(scan.nextSibling)) {\n alias = idName(doc, scan.nextSibling);\n }\n else if (kw && EndFrom.has(kw)) {\n break;\n }\n else if (prevID && plainID(scan)) {\n alias = idName(doc, scan);\n }\n if (alias) {\n if (!aliases)\n aliases = Object.create(null);\n aliases[alias] = pathFor(doc, prevID);\n }\n prevID = /Identifier$/.test(scan.name) ? scan : null;\n }\n return aliases;\n}\nfunction maybeQuoteCompletions(quote, completions) {\n if (!quote)\n return completions;\n return completions.map(c => (Object.assign(Object.assign({}, c), { label: quote + c.label + quote, apply: undefined })));\n}\nconst Span = /^\\w*$/, QuotedSpan = /^[`'\"]?\\w*[`'\"]?$/;\nclass CompletionLevel {\n constructor() {\n this.list = [];\n this.children = undefined;\n }\n child(name, idQuote) {\n let children = this.children || (this.children = Object.create(null));\n let found = children[name];\n if (found)\n return found;\n if (name)\n this.list.push(nameCompletion(name, \"type\", idQuote));\n return (children[name] = new CompletionLevel);\n }\n addCompletions(list) {\n for (let option of list) {\n let found = this.list.findIndex(o => o.label == option.label);\n if (found > -1)\n this.list[found] = option;\n else\n this.list.push(option);\n }\n }\n}\nfunction nameCompletion(label, type, idQuote) {\n if (!/[^\\w\\xb5-\\uffff]/.test(label))\n return { label, type };\n return { label, type, apply: idQuote + label + idQuote };\n}\nfunction completeFromSchema(schema, tables, schemas, defaultTableName, defaultSchemaName, dialect) {\n var _a;\n let top = new CompletionLevel;\n let idQuote = ((_a = dialect === null || dialect === void 0 ? void 0 : dialect.spec.identifierQuotes) === null || _a === void 0 ? void 0 : _a[0]) || '\"';\n let defaultSchema = top.child(defaultSchemaName || \"\", idQuote);\n for (let table in schema) {\n let parts = table.replace(/\\\\?\\./g, p => p == \".\" ? \"\\0\" : p).split(\"\\0\");\n let base = parts.length == 1 ? defaultSchema : top;\n for (let part of parts)\n base = base.child(part.replace(/\\\\\\./g, \".\"), idQuote);\n for (let option of schema[table])\n if (option)\n base.list.push(typeof option == \"string\" ? nameCompletion(option, \"property\", idQuote) : option);\n }\n if (tables)\n defaultSchema.addCompletions(tables);\n if (schemas)\n top.addCompletions(schemas);\n top.addCompletions(defaultSchema.list);\n if (defaultTableName)\n top.addCompletions(defaultSchema.child(defaultTableName, idQuote).list);\n return (context) => {\n let { parents, from, quoted, empty, aliases } = sourceContext(context.state, context.pos);\n if (empty && !context.explicit)\n return null;\n if (aliases && parents.length == 1)\n parents = aliases[parents[0]] || parents;\n let level = top;\n for (let name of parents) {\n while (!level.children || !level.children[name]) {\n if (level == top)\n level = defaultSchema;\n else if (level == defaultSchema && defaultTableName)\n level = level.child(defaultTableName, idQuote);\n else\n return null;\n }\n level = level.child(name, idQuote);\n }\n let quoteAfter = quoted && context.state.sliceDoc(context.pos, context.pos + 1) == quoted;\n let options = level.list;\n if (level == top && aliases)\n options = options.concat(Object.keys(aliases).map(name => ({ label: name, type: \"constant\" })));\n return {\n from,\n to: quoteAfter ? context.pos + 1 : undefined,\n options: maybeQuoteCompletions(quoted, options),\n validFor: quoted ? QuotedSpan : Span\n };\n };\n}\nfunction completeKeywords(keywords, upperCase) {\n let completions = Object.keys(keywords).map(keyword => ({\n label: upperCase ? keyword.toUpperCase() : keyword,\n type: keywords[keyword] == Type ? \"type\" : keywords[keyword] == Keyword ? \"keyword\" : \"variable\",\n boost: -1\n }));\n return ifNotIn([\"QuotedIdentifier\", \"SpecialVar\", \"String\", \"LineComment\", \"BlockComment\", \".\"], completeFromList(completions));\n}\n\nlet parser = /*@__PURE__*/parser$1.configure({\n props: [\n /*@__PURE__*/indentNodeProp.add({\n Statement: /*@__PURE__*/continuedIndent()\n }),\n /*@__PURE__*/foldNodeProp.add({\n Statement(tree) { return { from: tree.firstChild.to, to: tree.to }; },\n BlockComment(tree) { return { from: tree.from + 2, to: tree.to - 2 }; }\n }),\n /*@__PURE__*/styleTags({\n Keyword: tags.keyword,\n Type: tags.typeName,\n Builtin: /*@__PURE__*/tags.standard(tags.name),\n Bits: tags.number,\n Bytes: tags.string,\n Bool: tags.bool,\n Null: tags.null,\n Number: tags.number,\n String: tags.string,\n Identifier: tags.name,\n QuotedIdentifier: /*@__PURE__*/tags.special(tags.string),\n SpecialVar: /*@__PURE__*/tags.special(tags.name),\n LineComment: tags.lineComment,\n BlockComment: tags.blockComment,\n Operator: tags.operator,\n \"Semi Punctuation\": tags.punctuation,\n \"( )\": tags.paren,\n \"{ }\": tags.brace,\n \"[ ]\": tags.squareBracket\n })\n ]\n});\n/**\nRepresents an SQL dialect.\n*/\nclass SQLDialect {\n constructor(\n /**\n @internal\n */\n dialect, \n /**\n The language for this dialect.\n */\n language, \n /**\n The spec used to define this dialect.\n */\n spec) {\n this.dialect = dialect;\n this.language = language;\n this.spec = spec;\n }\n /**\n Returns the language for this dialect as an extension.\n */\n get extension() { return this.language.extension; }\n /**\n Define a new dialect.\n */\n static define(spec) {\n let d = dialect(spec, spec.keywords, spec.types, spec.builtin);\n let language = LRLanguage.define({\n name: \"sql\",\n parser: parser.configure({\n tokenizers: [{ from: tokens, to: tokensFor(d) }]\n }),\n languageData: {\n commentTokens: { line: \"--\", block: { open: \"/*\", close: \"*/\" } },\n closeBrackets: { brackets: [\"(\", \"[\", \"{\", \"'\", '\"', \"`\"] }\n }\n });\n return new SQLDialect(d, language, spec);\n }\n}\n/**\nReturns a completion source that provides keyword completion for\nthe given SQL dialect.\n*/\nfunction keywordCompletionSource(dialect, upperCase = false) {\n return completeKeywords(dialect.dialect.words, upperCase);\n}\n/**\nFIXME remove on 1.0 @internal\n*/\nfunction keywordCompletion(dialect, upperCase = false) {\n return dialect.language.data.of({\n autocomplete: keywordCompletionSource(dialect, upperCase)\n });\n}\n/**\nReturns a completion sources that provides schema-based completion\nfor the given configuration.\n*/\nfunction schemaCompletionSource(config) {\n return config.schema ? completeFromSchema(config.schema, config.tables, config.schemas, config.defaultTable, config.defaultSchema, config.dialect || StandardSQL)\n : () => null;\n}\n/**\nFIXME remove on 1.0 @internal\n*/\nfunction schemaCompletion(config) {\n return config.schema ? (config.dialect || StandardSQL).language.data.of({\n autocomplete: schemaCompletionSource(config)\n }) : [];\n}\n/**\nSQL language support for the given SQL dialect, with keyword\ncompletion, and, if provided, schema-based completion as extra\nextensions.\n*/\nfunction sql(config = {}) {\n let lang = config.dialect || StandardSQL;\n return new LanguageSupport(lang.language, [schemaCompletion(config), keywordCompletion(lang, !!config.upperCaseKeywords)]);\n}\n/**\nThe standard SQL dialect.\n*/\nconst StandardSQL = /*@__PURE__*/SQLDialect.define({});\n/**\nDialect for [PostgreSQL](https://www.postgresql.org).\n*/\nconst PostgreSQL = /*@__PURE__*/SQLDialect.define({\n charSetCasts: true,\n doubleDollarQuotedStrings: true,\n operatorChars: \"+-*/<>=~!@#%^&|`?\",\n specialVar: \"\",\n keywords: SQLKeywords + \"a abort abs absent access according ada admin aggregate alias also always analyse analyze array_agg array_max_cardinality asensitive assert assignment asymmetric atomic attach attribute attributes avg backward base64 begin_frame begin_partition bernoulli bit_length blocked bom c cache called cardinality catalog_name ceil ceiling chain char_length character_length character_set_catalog character_set_name character_set_schema characteristics characters checkpoint class class_origin cluster coalesce cobol collation_catalog collation_name collation_schema collect column_name columns command_function command_function_code comment comments committed concurrently condition_number configuration conflict connection_name constant constraint_catalog constraint_name constraint_schema contains content control conversion convert copy corr cost covar_pop covar_samp csv cume_dist current_catalog current_row current_schema cursor_name database datalink datatype datetime_interval_code datetime_interval_precision db debug defaults defined definer degree delimiter delimiters dense_rank depends derived detach detail dictionary disable discard dispatch dlnewcopy dlpreviouscopy dlurlcomplete dlurlcompleteonly dlurlcompletewrite dlurlpath dlurlpathonly dlurlpathwrite dlurlscheme dlurlserver dlvalue document dump dynamic_function dynamic_function_code element elsif empty enable encoding encrypted end_frame end_partition endexec enforced enum errcode error event every exclude excluding exclusive exp explain expression extension extract family file filter final first_value flag floor following force foreach fortran forward frame_row freeze fs functions fusion g generated granted greatest groups handler header hex hierarchy hint id ignore ilike immediately immutable implementation implicit import include including increment indent index indexes info inherit inherits inline insensitive instance instantiable instead integrity intersection invoker isnull k key_member key_type label lag last_value lead leakproof least length library like_regex link listen ln load location lock locked log logged lower m mapping matched materialized max max_cardinality maxvalue member merge message message_length message_octet_length message_text min minvalue mod mode more move multiset mumps name namespace nfc nfd nfkc nfkd nil normalize normalized nothing notice notify notnull nowait nth_value ntile nullable nullif nulls number occurrences_regex octet_length octets off offset oids operator options ordering others over overlay overriding owned owner p parallel parameter_mode parameter_name parameter_ordinal_position parameter_specific_catalog parameter_specific_name parameter_specific_schema parser partition pascal passing passthrough password percent percent_rank percentile_cont percentile_disc perform period permission pg_context pg_datatype_name pg_exception_context pg_exception_detail pg_exception_hint placing plans pli policy portion position position_regex power precedes preceding prepared print_strict_params procedural procedures program publication query quote raise range rank reassign recheck recovery refresh regr_avgx regr_avgy regr_count regr_intercept regr_r2 regr_slope regr_sxx regr_sxy regr_syy reindex rename repeatable replace replica requiring reset respect restart restore result_oid returned_cardinality returned_length returned_octet_length returned_sqlstate returning reverse routine_catalog routine_name routine_schema routines row_count row_number rowtype rule scale schema_name schemas scope scope_catalog scope_name scope_schema security selective self sensitive sequence sequences serializable server server_name setof share show simple skip slice snapshot source specific_name sqlcode sqlerror sqrt stable stacked standalone statement statistics stddev_pop stddev_samp stdin stdout storage strict strip structure style subclass_origin submultiset subscription substring substring_regex succeeds sum symmetric sysid system system_time t table_name tables tablesample tablespace temp template ties token top_level_count transaction_active transactions_committed transactions_rolled_back transform transforms translate translate_regex trigger_catalog trigger_name trigger_schema trim trim_array truncate trusted type types uescape unbounded uncommitted unencrypted unlink unlisten unlogged unnamed untyped upper uri use_column use_variable user_defined_type_catalog user_defined_type_code user_defined_type_name user_defined_type_schema vacuum valid validate validator value_of var_pop var_samp varbinary variable_conflict variadic verbose version versioning views volatile warning whitespace width_bucket window within wrapper xmlagg xmlattributes xmlbinary xmlcast xmlcomment xmlconcat xmldeclaration xmldocument xmlelement xmlexists xmlforest xmliterate xmlnamespaces xmlparse xmlpi xmlquery xmlroot xmlschema xmlserialize xmltable xmltext xmlvalidate yes\",\n types: SQLTypes + \"bigint int8 bigserial serial8 varbit bool box bytea cidr circle precision float8 inet int4 json jsonb line lseg macaddr macaddr8 money numeric pg_lsn point polygon float4 int2 smallserial serial2 serial serial4 text timetz timestamptz tsquery tsvector txid_snapshot uuid xml\"\n});\nconst MySQLKeywords = \"accessible algorithm analyze asensitive authors auto_increment autocommit avg avg_row_length binlog btree cache catalog_name chain change changed checkpoint checksum class_origin client_statistics coalesce code collations columns comment committed completion concurrent consistent contains contributors convert database databases day_hour day_microsecond day_minute day_second delay_key_write delayed delimiter des_key_file dev_pop dev_samp deviance directory disable discard distinctrow div dual dumpfile enable enclosed ends engine engines enum errors escaped even event events every explain extended fast field fields flush force found_rows fulltext grants handler hash high_priority hosts hour_microsecond hour_minute hour_second ignore ignore_server_ids import index index_statistics infile innodb insensitive insert_method install invoker iterate keys kill linear lines list load lock logs low_priority master master_heartbeat_period master_ssl_verify_server_cert masters max max_rows maxvalue message_text middleint migrate min min_rows minute_microsecond minute_second mod mode modify mutex mysql_errno no_write_to_binlog offline offset one online optimize optionally outfile pack_keys parser partition partitions password phase plugin plugins prev processlist profile profiles purge query quick range read_write rebuild recover regexp relaylog remove rename reorganize repair repeatable replace require resume rlike row_format rtree schedule schema_name schemas second_microsecond security sensitive separator serializable server share show slave slow snapshot soname spatial sql_big_result sql_buffer_result sql_cache sql_calc_found_rows sql_no_cache sql_small_result ssl starting starts std stddev stddev_pop stddev_samp storage straight_join subclass_origin sum suspend table_name table_statistics tables tablespace terminated triggers truncate uncommitted uninstall unlock upgrade use use_frm user_resources user_statistics utc_date utc_time utc_timestamp variables views warnings xa xor year_month zerofill\";\nconst MySQLTypes = SQLTypes + \"bool blob long longblob longtext medium mediumblob mediumint mediumtext tinyblob tinyint tinytext text bigint int1 int2 int3 int4 int8 float4 float8 varbinary varcharacter precision datetime unsigned signed\";\nconst MySQLBuiltin = \"charset clear edit ego help nopager notee nowarning pager print prompt quit rehash source status system tee\";\n/**\n[MySQL](https://dev.mysql.com/) dialect.\n*/\nconst MySQL = /*@__PURE__*/SQLDialect.define({\n operatorChars: \"*+-%<>!=&|^\",\n charSetCasts: true,\n doubleQuotedStrings: true,\n unquotedBitLiterals: true,\n hashComments: true,\n spaceAfterDashes: true,\n specialVar: \"@?\",\n identifierQuotes: \"`\",\n keywords: SQLKeywords + \"group_concat \" + MySQLKeywords,\n types: MySQLTypes,\n builtin: MySQLBuiltin\n});\n/**\nVariant of [`MySQL`](https://codemirror.net/6/docs/ref/#lang-sql.MySQL) for\n[MariaDB](https://mariadb.org/).\n*/\nconst MariaSQL = /*@__PURE__*/SQLDialect.define({\n operatorChars: \"*+-%<>!=&|^\",\n charSetCasts: true,\n doubleQuotedStrings: true,\n unquotedBitLiterals: true,\n hashComments: true,\n spaceAfterDashes: true,\n specialVar: \"@?\",\n identifierQuotes: \"`\",\n keywords: SQLKeywords + \"always generated groupby_concat hard persistent shutdown soft virtual \" + MySQLKeywords,\n types: MySQLTypes,\n builtin: MySQLBuiltin\n});\n/**\nSQL dialect for Microsoft [SQL\nServer](https://www.microsoft.com/en-us/sql-server).\n*/\nconst MSSQL = /*@__PURE__*/SQLDialect.define({\n keywords: SQLKeywords + \"trigger proc view index for add constraint key primary foreign collate clustered nonclustered declare exec go if use index holdlock nolock nowait paglock pivot readcommitted readcommittedlock readpast readuncommitted repeatableread rowlock serializable snapshot tablock tablockx unpivot updlock with\",\n types: SQLTypes + \"bigint smallint smallmoney tinyint money real text nvarchar ntext varbinary image hierarchyid uniqueidentifier sql_variant xml\",\n builtin: \"binary_checksum checksum connectionproperty context_info current_request_id error_line error_message error_number error_procedure error_severity error_state formatmessage get_filestream_transaction_context getansinull host_id host_name isnull isnumeric min_active_rowversion newid newsequentialid rowcount_big xact_state object_id\",\n operatorChars: \"*+-%<>!=^&|/\",\n specialVar: \"@\"\n});\n/**\n[SQLite](https://sqlite.org/) dialect.\n*/\nconst SQLite = /*@__PURE__*/SQLDialect.define({\n keywords: SQLKeywords + \"abort analyze attach autoincrement conflict database detach exclusive fail glob ignore index indexed instead isnull notnull offset plan pragma query raise regexp reindex rename replace temp vacuum virtual\",\n types: SQLTypes + \"bool blob long longblob longtext medium mediumblob mediumint mediumtext tinyblob tinyint tinytext text bigint int2 int8 unsigned 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tokenBase(stream, state) {\n if (stream.sol()) {\n state.label = true;\n state.commandMode = 0;\n }\n\n // The character has meaning in MUMPS. 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Set,this._baseConfig=null!=e?e:{},this._config=null!=t?t:{},this._configurableBuilderMap=new Map(n);const i=Object.keys(this._config).concat(Object.keys(this._baseConfig));this._immutables=new Set([...this._configurableBuilderMap.keys()].filter((e=>!i.includes(e))))}get configChanged(){return this._configChanged}get disposed(){return this._disposed}get isDisposed(){return this._isDisposed}dispose(){this.isDisposed||(this._isDisposed=!0,this._disposed.emit(),Ce.Signal.clearData(this))}getOption(e){var t;return null!==(t=this._config[e])&&void 0!==t?t:this._baseConfig[e]}hasOption(e){return Object.keys(this._config).includes(e)||Object.keys(this._baseConfig).includes(e)}setOption(e,t){this._config[e]!==t&&(this._config[e]=t,this._configChanged.emit({[e]:t}))}setBaseOptions(e){const t=this._getChangedOptions(e,this._baseConfig);if(t.length>0){this._baseConfig=e;const n=Object.keys(this._config),i=t.filter((e=>!n.includes(e)));i.length>0&&this._configChanged.emit(i.reduce(((e,t)=>(e[t]=this._baseConfig[t],e)),{}))}}setOptions(e){const t=this._getChangedOptions(e,this._config);t.length>0&&(this._config={...e},this._configChanged.emit(t.reduce(((e,t)=>{var n;return e[t]=null!==(n=this._config[t])&&void 0!==n?n:this._baseConfig[t],e}),{})))}reconfigureExtension(e,t,n){const i=this.getEffect(e.state,t,n);i&&e.dispatch({effects:[i]})}reconfigureExtensions(e,t){const n=Object.keys(t).filter((e=>this.has(e))).map((n=>this.getEffect(e.state,n,t[n])));e.dispatch({effects:n.filter((e=>null!==e))})}injectExtension(e,t){e.dispatch({effects:i.Py.appendConfig.of(t)})}getInitialExtensions(){const e={...this._baseConfig,...this._config},t=[...this._immutables].map((e=>{var t;return null===(t=this.get(e))||void 0===t?void 0:t.instance(void 0)})).filter((e=>e));for(const n of Object.keys(e)){const i=this.get(n);if(i){const s=e[n];t.push(i.instance(s))}}return t}get(e){return this._configurableBuilderMap.get(e)}has(e){return this._configurableBuilderMap.has(e)}getEffect(e,t,n){var i;const s=this.get(t);return null!==(i=null==s?void 0:s.reconfigure(n))&&void 0!==i?i:null}_getChangedOptions(e,t){const n=new Array,i=new Array;for(const[s,r]of Object.entries(e))i.push(s),t[s]!==r&&n.push(s);return n.push(...Object.keys(t).filter((e=>!i.includes(e)))),n}}class $e{constructor(){this.configurationBuilder=new Map,this.configurationSchema={},this.defaultOptions={},this.handlers=new Set,this.immutableExtensions=new Set,this._baseConfiguration={}}get baseConfiguration(){return{...this.defaultOptions,...this._baseConfiguration}}set baseConfiguration(e){if(!Ae.JSONExt.deepEqual(e,this._baseConfiguration)){this._baseConfiguration=e;for(const e of this.handlers)e.setBaseOptions(this.baseConfiguration)}}get defaultConfiguration(){return Object.freeze({...this.defaultOptions})}get settingsSchema(){return Object.freeze(Ae.JSONExt.deepCopy(this.configurationSchema))}addExtension(e){var t;if(this.configurationBuilder.has(e.name))throw new Error(`Extension named ${e.name} is already registered.`);this.configurationBuilder.set(e.name,e),void 0!==e.default&&(this.defaultOptions[e.name]=e.default),e.schema&&(this.configurationSchema[e.name]={default:null!==(t=e.default)&&void 0!==t?t:null,...e.schema},this.defaultOptions[e.name]=this.configurationSchema[e.name].default)}createNew(e){const t=new Array;for(const[n,i]of this.configurationBuilder.entries()){const s=i.factory(e);s&&t.push([n,s])}const n=new Le({baseConfiguration:this.baseConfiguration,config:e.config,defaultExtensions:t});return this.handlers.add(n),n.disposed.connect((()=>{this.handlers.delete(n)})),n}}var ze;!function(e){class t{constructor(e){this._compartment=new i.F6,this._builder=e}instance(e){return this._compartment.of(this._builder(e))}reconfigure(e){return this._compartment.reconfigure(this._builder(e))}}class n{constructor(e){this._extension=e}instance(){return this._extension}reconfigure(){return null}}function o(e){return new t(e)}function a(e,n=[]){return new t((t=>t?e:n))}function l(e){return new n(e)}e.createConfigurableExtension=o,e.createConditionalExtension=a,e.createImmutableExtension=l,e.getDefaultExtensions=function(e={}){const{themes:t,translator:n}=e,h=(null!=n?n:Me.Sr).load("jupyterlab"),c=[Object.freeze({name:"autoClosingBrackets",default:!1,factory:()=>a((0,Oe.vQ)()),schema:{type:"boolean",title:h.__("Auto Closing Brackets")}}),Object.freeze({name:"codeFolding",default:!1,factory:()=>a((0,r.mi)()),schema:{type:"boolean",title:h.__("Code Folding")}}),Object.freeze({name:"cursorBlinkRate",default:1200,factory:()=>o((e=>(0,s.Uw)({cursorBlinkRate:e}))),schema:{type:"number",title:h.__("Cursor blinking rate"),description:h.__("Half-period in milliseconds used for cursor blinking. 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Ve{constructor(e,t,n,i){super(e),this.precedences=t,this.rules=n,this.fallback=i}}class Xe extends Ve{constructor(e,t,n){super(e),this.literal=t,this.props=n}}class Qe extends Ve{constructor(e,t,n){super(e),this.id=t,this.source=n}}class Ze extends Ve{constructor(e,t,n,i){super(e),this.id=t,this.source=n,this.tokens=i}}class et extends Ve{constructor(e,t,n,i,s,r){super(e),this.type=t,this.token=n,this.id=i,this.source=s,this.tokens=r}}class tt extends Ve{constructor(e,t,n){super(e),this.id=t,this.source=n}}class nt extends Ve{constructor(e,t,n,i){super(e),this.id=t,this.externalID=n,this.source=i}}class it extends Ve{constructor(e,t){super(e),this.name=t}toString(){return this.name}}class st extends Ve{walk(e){return e(this)}eq(e){return!1}}st.prototype.prec=10;class rt extends st{constructor(e,t,n){super(e),this.id=t,this.args=n}toString(){return this.id.name+(this.args.length?`<${this.args.join()}>`:"")}eq(e){return this.id.name==e.id.name&&vt(this.args,e.args)}walk(e){let 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Pt{constructor(e,t,n){this.from=e,this.to=t,this.target=n}toString(){return`-> ${this.target.id}[label=${JSON.stringify(this.from<0?"ε":It(this.from)+(this.to>this.from+1?"-"+It(this.to-1):""))}]`}}function It(e){return e>Rt?"∞":10==e?"\\n":13==e?"\\r":e<32||e>=55296&&e<57343?"\\u{"+e.toString(16)+"}":String.fromCharCode(e)}function Bt(e,t,n){if(e.edges.length!=t.edges.length)return!1;for(let i=0;iDt(e,t.accepting)),[]),n++),o=[];for(let e of s)for(let t of e.edges)t.from>=0&&o.push(t);let a=function(e){let t=[],n=[];for(let n of e)t.includes(n.from)||t.push(n.from),t.includes(n.to)||t.push(n.to);t.sort(((e,t)=>e-t));for(let i=1;is&&t.from65535==e.from&&65535==e.to));if(i.length){let e=[];for(let t of i)for(let n of t.target.closure())e.includes(n)||e.push(n);e.length&&n.push(new Wt(65535,65535,e))}return n}(o);for(let e of a){let n=e.targets.sort(((e,t)=>e.id-t.id));r.edge(e.from,e.to,t[Vt(n)]||i(n))}return r}(this.closure().sort(((e,t)=>e.id-t.id)));return function(e,t){let n=Object.create(null),i=Object.create(null);for(let t of e){let e=Vt(t.accepting),s=i[e]||(i[e]=[]);s.push(t),n[t.id]=s}for(;;){let i=!1,s=Object.create(null);for(let t of e){if(s[t.id])continue;let e=n[t.id];if(1==e.length){s[e[0].id]=e;continue}let r=[];e:for(let t of e){for(let e of r)if(Bt(t,e[0],n)){e.push(t);continue e}r.push([t])}r.length>1&&(i=!0);for(let e of r)for(let t of e)s[t.id]=e}if(!i)return Lt(e,t,n);n=s}}(Object.values(t),i)}closure(){let e=[],t=Object.create(null);return function n(i){if(!t[i.id]){t[i.id]=!0,(i.edges.some((e=>e.from>=0))||i.accepting.length>0&&!i.edges.some((e=>function(e,t){if(e.length!=t.length)return!1;for(let n=0;nt.a==e&&t.b==n));o?o.soft!=i&&(o.soft=0):t.push(new Ft(e,n,i,Ht(s),r&&Ht(r)))}return this.reachable(((t,s)=>{if(0!=t.accepting.length){for(let e=0;e{if(r!=t)for(let a of r.accepting){let r=n.includes(a);for(let l of t.accepting)a!=l&&i(a,l,r||n.includes(l)||!e(a,l)?0:1,s,s.concat(o))}}))}})),t}cycleTerms(){let e=[];this.reachable((t=>{for(let{target:n}of t.edges)e.push(t,n)}));let t=new Map,n=[];for(let i=0;i{t.accepting.length&&(e+=` ${t.id} [label=${JSON.stringify(t.accepting.join())}];\n`);for(let n of t.edges)e+=` ${t.id} ${n};\n`})),e+"}"}toArray(e,t){let n=[],i=[];this.reachable((s=>{let r=i.length,o=r+3+2*s.accepting.length;n[s.id]=r,i.push(s.stateMask(e),o,s.edges.length),s.accepting.sort(((e,n)=>t.indexOf(e.id)-t.indexOf(n.id)));for(let t of s.accepting)i.push(t.id,e[t.id]||65535);for(let e of s.edges)i.push(e.from,e.to,-e.target.id-1)}));for(let e=0;eMath.pow(2,16))throw new St("Tokenizer tables too big to represent with 16-bit offsets.");return Uint16Array.from(i)}stateMask(e){let t=0;return this.reachable((n=>{for(let i of n.accepting)t|=e[i.id]||65535})),t}},Ft=class{constructor(e,t,n,i,s){this.a=e,this.b=t,this.soft=n,this.exampleA=i,this.exampleB=s}};function Ht(e){let t="";for(let n=0;n-1&&i-1){let e=this.lineInfo(t);n+=(n?" 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ft(t,n)}if(e.eat("id","_"))return new pt(t);if("set"==e.type){let n=e.value,i="!"==e.string[e.start],s=bn(n.replace(/\\.|-|"/g,(e=>"-"==e?Qt:'"'==e?'\\"':e))),r=[];for(let t=0;t65535?2:1,t65535?3:2,ie[0]-t[0])),i)}if("at"!=e.type||"specialize"!=e.value&&"extend"!=e.value){if("at"==e.type&>.hasOwnProperty(e.value)){let t=new bt(e.start,e.value);return e.next(),t}if("["==e.type){let n=Gt(e,new it(t,"_anon"));return n.params.length&&e.raise("Inline rules can't have parameters",n.start),new at(t,n)}{let n=on(e);if("["==e.type||"{"==e.type){let i=Gt(e,n);return i.params.length&&e.raise("Inline rules can't have parameters",i.start),new at(t,i)}if(e.eat(".")&&"std"==n.name&>.hasOwnProperty(e.value)){let n=new bt(t,e.value);return e.next(),n}return new rt(t,n,function(e){let t=[];if(e.eat("<"))for(;!e.eat(">");)t.length&&e.expect(","),t.push(rn(e));return t}(e))}}{let{start:t,value:n}=e;e.next();let i=Kt(e);e.expect("<");let s,r=rn(e);return e.eat(",")?s=rn(e):r instanceof 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n=0;n0){this.actions.splice(n,1),this.actionPositions.splice(n,1),n--;continue e}if(l<0)return null;if(o.ambigGroups.some((e=>a.ambigGroups.includes(e))))continue e;return i}}return this.actions.push(e),this.actionPositions.push(t),null}addAction(e,t,n){let i=this.addActionInner(e,t);if(i){let s,r=this.actionPositions[this.actions.indexOf(i)][0],o=[t[0].rule.name,r.rule.name];if(n.some((e=>e.rules.some((e=>o.includes(e))))))return;s=i instanceof Nn?`shift/reduce conflict between\n ${r}\nand\n ${t[0].rule}`:`reduce/reduce conflict between\n ${r.rule}\nand\n ${t[0].rule}`,s+=`\nWith input:\n ${t[0].trail(70)} · ${e.term} …`,s+=function(e,t){if(e.eqSimple(t))return"";function n(e,t){let n=[];for(let i=t.via;!i.eqSimple(e);i=i.via)n.push(i);return n.length?(n.unshift(t),n.reverse().map(((e,n)=>"\n"+" ".repeat(n+1)+(e==t?"":"via ")+e)).join("")):""}for(let i=e;i;i=i.via)for(let s=t;s;s=s.via)if(i.eqSimple(s))return"\nShared origin: "+i+n(i,e)+n(i,t);return""}(r,t[0]),n.push(new In(s,o))}}getGoto(e){return this.goto.find((t=>t.term==e))}hasSet(e){return Tn(this.set,e)}actionsByTerm(){let e=this._actionsByTerm;if(!e){this._actionsByTerm=e=Object.create(null);for(let t of this.actions)(e[t.term.id]||(e[t.term.id]=[])).push(t)}return e}finish(){if(this.actions.length){let e=this.actions[0];if(e instanceof Dn){let{rule:t}=e;this.actions.every((e=>e instanceof Dn&&e.rule.sameReduce(t)))&&(this.defaultReduce=t)}}this.actions.sort(((e,t)=>e.cmp(t))),this.goto.sort(((e,t)=>e.cmp(t)))}eq(e){let t=this.defaultReduce,n=e.defaultReduce;return t||n?!(!t||!n)&&t.sameReduce(n):this.skip==e.skip&&this.tokenGroup==e.tokenGroup&&Tn(this.actions,e.actions)&&Tn(this.goto,e.goto)}}function Rn(e,t){t.includes(e)||t.push(e)}class Pn{constructor(e,t){this.set=e,this.state=t}}class In{constructor(e,t){this.error=e,this.rules=t}}function Bn(e){let t=null,n=1;for(let i of e){let e=i.rule.conflicts[i.pos-1].cut;en)&&(n=e,t=[]),t.push(i))}return t||e}function Ln(e,t,n){for(let i of e.goto)for(let e of t.goto)if(i.term==e.term&&n[i.target.id]!=n[e.target.id])return!1;let i=t.actionsByTerm();for(let t of e.actions){let s=i[t.term.id];if(s&&s.some((e=>!e.matches(t,n)))){if(1==s.length)return!1;let i=e.actionsByTerm()[t.term.id];if(i.length!=s.length||i.some((e=>!s.some((t=>e.matches(t,n))))))return!1}}return!0}function $n(e,t){let n=[];for(let i of e){let e=t[i.id];n[e]||(n[e]=new jn(e,i.set,0,i.skip,i.hash,i.startRule),n[e].tokenGroup=i.tokenGroup,n[e].defaultReduce=i.defaultReduce)}for(let i of e){let e=n[t[i.id]];e.flags|=i.flags;for(let s=0;se.eq(r)))||(e.actions.push(r),e.actionPositions.push(i.actionPositions[s]))}for(let s of i.goto){let i=s.map(t,n);e.goto.some((e=>e.eq(i)))||e.goto.push(i)}}return n}class zn{constructor(e,t){this.origin=e,this.members=[t]}}function Fn(e,t){if(e.length!=t.length)return!1;for(let n=0;n=34&&t++,t>=92&&t++,String.fromCharCode(t)}function Wn(e,t=65535){if(e>t)throw new Error("Trying to encode a number that's too big: "+e);if(65535==e)return String.fromCharCode(126);let n="";for(let t=46;;t=0){let i=e%46,s=e-i;if(n=Vn(i+t)+n,0==s)break;e=s/46}return n}function qn(e,t=65535){let n='"'+Wn(e.length,4294967295);for(let i=0;i{this.input=new Ut(e,t.fileName),this.ast=this.input.parse()}));let n=o.md;for(let e in n)n[e]instanceof o.md&&!n[e].perNode&&(this.knownProps[e]={prop:n[e],source:{name:e,from:null}});for(let e of this.ast.externalProps)this.knownProps[e.id.name]={prop:this.options.externalProp?this.options.externalProp(e.id.name):new o.md,source:{name:e.externalID.name,from:e.source}};this.dialects=this.ast.dialects.map((e=>e.name)),this.tokens=new hi(this,this.ast.tokens),this.localTokens=this.ast.localTokens.map((e=>new ci(this,e))),this.externalTokens=this.ast.externalTokens.map((e=>new ki(this,e))),this.externalSpecializers=this.ast.externalSpecializers.map((e=>new Si(this,e))),kn("Build rules",(()=>{let e=this.newName("%noskip",!0);this.defineRule(e,[]);let t=this.ast.mainSkip?this.newName("%mainskip",!0):e,n=[],i=[];for(let e of this.ast.rules)this.astRules.push({skip:t,rule:e});for(let e of this.ast.topRules)i.push({skip:t,rule:e});for(let s of this.ast.scopedSkip){let r=e,o=this.ast.scopedSkip.findIndex(((e,t)=>t-1?r=n[o]:this.ast.mainSkip&&yt(s.expr,this.ast.mainSkip)?r=t:yi(s.expr)||(r=this.newName("%skip",!0)),n.push(r);for(let e of s.rules)this.astRules.push({skip:r,rule:e});for(let e of s.topRules)i.push({skip:r,rule:e})}for(let{rule:e}of this.astRules)this.unique(e.id);this.currentSkip.push(e),this.skipRules=t==e?[t]:[e,t],t!=e&&this.defineRule(t,this.normalizeExpr(this.ast.mainSkip));for(let t=0;te.rule.start-t.rule.start))){this.unique(e.id),this.used(e.id.name),this.currentSkip.push(t);let{name:n,props:i}=this.nodeInfo(e.props,"a",e.id.name,Jn,Jn,e.expr),s=this.terms.makeTop(n,i);this.namedTerms[n]=s,this.defineRule(s,this.normalizeExpr(e.expr)),this.currentSkip.pop()}for(let e of this.externalSpecializers)e.finish();for(let{skip:e,rule:t}of this.astRules)this.ruleNames[t.id.name]&&Oi(t)&&!t.params.length&&(this.buildRule(t,[],e,!1),t.expr instanceof ht&&0==t.expr.exprs.length&&this.used(t.id.name))}));for(let e in this.ruleNames){let t=this.ruleNames[e];t&&this.warn(`Unused rule '${t.name}'`,t.start)}this.tokens.takePrecedences(),this.tokens.takeConflicts();for(let e of this.localTokens)e.takePrecedences();for(let{name:e,group:t,rule:n}of this.definedGroups)this.defineGroup(e,t,n);this.checkGroups()}unique(e){e.name in this.ruleNames&&this.raise(`Duplicate definition of rule '${e.name}'`,e.start),this.ruleNames[e.name]=e}used(e){this.ruleNames[e]=null}newName(e,t=null,n={}){for(let i=t?0:1;;i++){let s=i?`${e}-${i}`:e;if(!this.terms.names[s])return this.terms.makeNonTerminal(s,!0===t?null:t,n)}}prepareParser(){let e=kn("Simplify rules",(()=>function(e,t){return function(e){let t,n=Object.create(null);for(let i=0;i!n[e.name]))?t:new jt(t.name,t.parts.map((e=>n[e.name]||e)),t.conflicts,t.skip));return i}(function(e,t){for(let n=0;;n++){let i,s=Object.create(null);if(0==n)for(let o of e)if(o.name.inline&&!s[o.name.name]){let a=e.filter((e=>e.name==o.name));if(a.some((e=>e.parts.includes(o.name))))continue;i=s[o.name.name]=a}for(let l=0;le.skip==h.skip||!e.parts.includes(h.name)))||h.parts.some((e=>!!s[e.name]))||e.some(((e,t)=>t!=l&&e.name==h.name))||(i=s[h.name.name]=[h])}if(!i)return e;let r=[];for(let c of e){function u(e,t,n){if(e==c.parts.length)return void r.push(new jt(c.name,n,t,c.skip));let i=c.parts[e],o=s[i.name];if(o)for(let i of o)u(e+1,t.slice(0,t.length-1).concat(t[e].join(i.conflicts[0])).concat(i.conflicts.slice(1,i.conflicts.length-1)).concat(c.conflicts[e+1].join(i.conflicts[i.conflicts.length-1])),n.concat(i.parts));else u(e+1,t.concat(c.conflicts[e+1]),n.concat(i))}s[c.name.name]||(c.parts.some((e=>!!s[e.name]))?u(0,[c.conflicts[0]],[]):r.push(c))}e=r}}(e,t))}(this.rules,[...this.skipRules,...this.terms.tops]))),{nodeTypes:t,names:n,minRepeatTerm:i,maxTerm:s}=this.terms.finish(e);for(let e in this.namedTerms)this.termTable[e]=this.namedTerms[e].id;/\bgrammar\b/.test(xn)&&console.log(e.join("\n"));let r=this.terms.tops.slice(),o=function(e){let t=Object.create(null);for(let n of e.terms)n.terminal||(t[n.name]=[]);for(;;){let n=!1;for(let i of e.terms)if(!i.terminal)for(let e of i.rules){let s=t[i.name],r=!1,o=s.length;for(let n of e.parts){if(r=!0,n.terminal)Rn(n,s);else for(let e of t[n.name])null==e?r=!1:Rn(e,s);if(r)break}r||Rn(null,s),s.length>o&&(n=!0)}if(!n)return t}}(this.terms),a=this.skipRules.map(((e,t)=>{let n=[],i=[],s=[];for(let t of e.rules){if(!t.parts.length)continue;let e=t.parts[0];for(let t of e.terminal?[e]:o[e.name]||[])i.includes(t)||i.push(t);e.terminal&&1==t.parts.length&&!s.some((n=>n!=t&&n.parts[0]==e))?n.push(e):s.push(t)}return e.rules=s,s.length&&r.push(e),{skip:n,rule:s.length?e:null,startTokens:i,id:t}})),l=kn("Build full automaton",(()=>function(e,t,n){let i=[],s={},r={},o=Date.now();function a(e,t){if(0==e.length)return null;let a,l=En(e),h=r[l];for(let t of e)if(a){if(a!=t.skip)throw new St("Inconsistent skip sets after "+t.trail())}else a=t.skip;if(h)for(let t of h)if(Tn(e,t.set)){if(t.state.skip!=a)throw new St("Inconsistent skip sets after "+t.set[0].trail());return t.state}let c,u=function(e,t){let n=[],i=[];function s(t,s,r,o,a){for(let l of t.rules){let t=n.find((e=>e.rule==l));if(!t){let i=e.find((e=>0==e.pos&&e.rule==l));t=i?new Sn(l,0,i.ahead.slice(),i.ambigAhead,i.skipAhead,i.via):new Sn(l,0,[],Hn,o,a),n.push(t)}if(t.skipAhead!=o)throw new St("Inconsistent skip sets after "+a.trail());t.ambigAhead=Dt(t.ambigAhead,r);for(let e of s)t.ahead.includes(e)||(t.ahead.push(e),t.rule.parts.length&&!t.rule.parts[0].terminal&&Rn(t,i))}}for(let n of e){let e=n.next;e&&!e.terminal&&s(e,Mn(n.rule,n.pos,n.ahead,t),n.conflicts(n.pos+1).ambigGroups,n.pos==n.rule.parts.length-1?n.skipAhead:n.rule.skip,n)}for(;i.length;){let e=i.pop();s(e.rule.parts[0],Mn(e.rule,0,e.ahead,t),Dt(e.rule.conflicts[1].ambigGroups,1==e.rule.parts.length?e.ambigAhead:Hn),1==e.rule.parts.length?e.skipAhead:e.rule.skip,e)}let r=e.slice();for(let t of n){t.ahead.sort(((e,t)=>e.hash-t.hash)),t.finish();let n=e.findIndex((e=>0==e.pos&&e.rule==t.rule));n>-1?r[n]=t:r.push(t)}return r.sort(((e,t)=>e.cmp(t)))}(e,n),f=En(u),d=s[f]||(s[f]=[]);if(!t)for(let e of d)e.hasSet(u)&&(c=e);return c||(c=new jn(i.length,u,0,a,f,t),d.push(c),i.push(c),wn&&i.length%500==0&&console.log(`${i.length} states after ${((Date.now()-o)/1e3).toFixed(2)}s`)),(r[l]||(r[l]=[])).push(new Pn(e,c)),c}for(const n of t){const t=n.rules.length?n.rules[0].skip:e.names["%noskip"];a(n.rules.map((n=>new Sn(n,0,[e.eof],Hn,t,null).finish())),n)}let l=[];for(let e=0;ee.advance()));if(n.terminal){let s=a(Bn(i));s&&t.addAction(new Nn(n,s),r[e],l)}else{let e=a(i);e&&t.goto.push(new Nn(n,e))}}let h=!1;for(let e of o)for(let n of e.ahead){let i=t.actions.length;t.addAction(new Dn(n,e.rule),[e],l),t.actions.length==i&&(h=!0)}if(h)for(let e=0;et.actions.some((t=>t.term==e&&t instanceof Nn))))||t.goto.splice(e--,1)}if(l.length)throw new St(l.map((e=>e.error)).join("\n\n"));for(let e of i)e.finish();return wn&&console.log(`${i.length} states total.`),i}(this.terms,r,o))),h=this.localTokens.map(((e,t)=>e.buildLocalGroup(l,a,t))),{tokenGroups:c,tokenPrec:u,tokenData:f}=kn("Build token groups",(()=>this.tokens.buildTokenGroups(l,a,h.length))),d=kn("Finish automaton",(()=>function(e){for(let t=1;;t++){let n=[],i=!1,s=Date.now(),r=[];for(let t=0;ts.eq(e)));if(o<0)n[t]=r.length,r.push(s);else{n[t]=o,i=!0;let e=r[o],a=null;for(let t of s.set)e.set.some((e=>e.eqSimple(t)))||(a||(a=[])).push(t);a&&(e.set=a.concat(e.set).sort(((e,t)=>e.cmp(t))))}}if(wn&&console.log(`Merge identical pass ${t}${i?"":", done"} (${((Date.now()-s)/1e3).toFixed(2)}s)`),!i)return e;for(let e of r)e.defaultReduce||(e.actions=e.actions.map((e=>e.map(n,r))),e.goto=e.goto.map((e=>e.map(n,r))));for(let e=0;eLn(o,e[n],t))))return void n[s].members.push(o.id);t[o.id]=n.length,n.push(new zn(r.origin,o.id))}for(let s=1;;s++){let r=!1,o=Date.now();for(let s=0,o=n.length;s{n[e.id]||(n[e.id]=!0,i.push(e))};for(let n of e)n.startRule&&t.includes(n.startRule)&&s(n);for(let e=0;e!n[e]}(d,this.terms.tops);/\blr\b/.test(xn)&&console.log(d.join("\n"));let m=[];for(let e of this.externalSpecializers)m.push(e);for(let e in this.specialized)m.push({token:this.terms.names[e],table:Zn(this.specialized[e])});let g=e=>e instanceof ki?e.ast.start:this.tokens.ast?this.tokens.ast.start:-1,b=c.concat(this.externalTokens).sort(((e,t)=>g(e)-g(t))).concat(h),y=new ti,v=a.map((e=>{let t=[];for(let n of e.skip)t.push(n.id,0,4);if(e.rule){let n=d.find((t=>t.startRule==e.rule));for(let e of n.actions)t.push(e.term.id,n.id,2)}return t.push(65535,0),y.storeArray(t)})),x=kn("Finish states",(()=>{let e=new Uint32Array(6*d.length),t=this.computeForceReductions(d,a),n=new Xn(b,y,e,v,a,d,this);for(let e of d)n.finish(e,p(e.id),t[e.id]);return e})),w=Object.create(null);for(let e=0;ee.id)).concat(65535));let k=null;if(this.dynamicRulePrecedences.length){k=Object.create(null);for(let{rule:e,prec:t}of this.dynamicRulePrecedences)k[e.id]=t}let S=Object.create(null);for(let e of this.terms.tops)S[e.nodeName]=[d.find((t=>t.startRule==e)).id,e.id];let A=y.storeArray(u.concat(65535)),{nodeProps:C,skippedTypes:O}=this.gatherNodeProps(t);return{states:x,stateData:y.finish(),goto:ni(d),nodeNames:t.filter((e=>e.ide.nodeName)).join(" "),nodeProps:C,skippedTypes:O,maxTerm:s,repeatNodeCount:t.length-i,tokenizers:b,tokenData:f,topRules:S,dialects:w,dynamicPrecedences:k,specialized:m,tokenPrec:A,termNames:n}}getParser(){let{states:e,stateData:t,goto:n,nodeNames:i,nodeProps:s,skippedTypes:r,maxTerm:o,repeatNodeCount:a,tokenizers:l,tokenData:h,topRules:c,dialects:u,dynamicPrecedences:f,specialized:d,tokenPrec:p,termNames:m}=this.prepareParser(),g=d.map((e=>{if(e instanceof Si){let t=this.options.externalSpecializer(e.ast.id.name,this.termTable);return{term:e.term.id,get:(n,i)=>t(n,i)<<1|("extend"==e.ast.type?1:0),external:t,extend:"extend"==e.ast.type}}return{term:e.token.id,get:t=>e.table[t]||-1}}));return He.WQ.deserialize({version:14,states:e,stateData:t,goto:n,nodeNames:i,maxTerm:o,repeatNodeCount:a,nodeProps:s.map((({prop:e,terms:t})=>[this.knownProps[e].prop,...t])),propSources:this.options.externalPropSource?this.ast.externalPropSources.map((e=>this.options.externalPropSource(e.id.name))):void 0,skippedNodes:r,tokenData:h,tokenizers:l.map((e=>e.create())),context:this.ast.context?"function"==typeof this.options.contextTracker?this.options.contextTracker(this.termTable):this.options.contextTracker:void 0,topRules:c,dialects:u,dynamicPrecedences:f,specialized:g,tokenPrec:p,termNames:m})}getParserFile(){let{states:e,stateData:t,goto:n,nodeNames:i,nodeProps:s,skippedTypes:r,maxTerm:o,repeatNodeCount:a,tokenizers:l,tokenData:h,topRules:c,dialects:u,dynamicPrecedences:f,specialized:d,tokenPrec:p,termNames:m}=this.prepareParser(),g=this.options.moduleStyle||"es",b=this.options.typeScript?": any":"",y="// This file was generated by lezer-generator. You probably shouldn't edit it.\n",v=y,x={},w=Object.create(null),k=Object.create(null);for(let e of Ci)k[e]=!0;let S=this.options.exportName||"parser";k[S]=!0;let A=e=>{for(let t=0;;t++){let n=e+(t?"_"+t:"");if(!k[n])return n}},C=(e,t,n=e)=>{let i=e+" from "+t;if(w[i])return w[i];let s=JSON.stringify(t),r=e;return e in k&&(r=A(n),e+=`${"cjs"==g?":":" as"} ${r}`),k[r]=!0,(x[s]||(x[s]=[])).push(e),w[i]=r},O=C("LRParser","@lezer/lr"),M=l.map((e=>e.createSource(C))),T=this.ast.context?C(this.ast.context.id.name,this.ast.context.source):null,_=s.map((({prop:e,terms:t})=>{let{source:n}=this.knownProps[e];return`[${n.from?C(n.name,n.from):JSON.stringify(n.name)}, ${t.map(j).join(",")}]`})),N="",D=d.map((e=>{if(e instanceof Si){let t=C(e.ast.id.name,e.ast.source);return`{term: ${e.term.id}, get: (value${b}, stack${b}) => (${t}(value, stack) << 1)${"extend"==e.ast.type?" | 1":""}, external: ${t}${"extend"==e.ast.type?", extend: true":""}}`}{let n=A("spec_"+e.token.name.replace(/\W/g,""));return k[n]=!0,N+=`const ${n} = ${t=e.table,"{__proto__:null,"+Object.keys(t).map((e=>`${/\W/.test(e)?JSON.stringify(e):e}:${t[e]}`)).join(", ")+"}"}\n`,`{term: ${e.token.id}, get: (value${b}) => ${n}[value] || -1}`}var t})),E=this.ast.externalPropSources.map((e=>C(e.id.name,e.source)));for(let e in x)v+="cjs"==g?`const {${x[e].join(", ")}} = require(${e})\n`:`import {${x[e].join(", ")}} from ${e}\n`;function j(e){return"string"!=typeof e||/^(true|false|\d+(\.\d+)?|\.\d+)$/.test(e)?e:JSON.stringify(e)}v+=N;let R=Object.keys(u).map((e=>`${e}: ${u[e]}`)),P=`${O}.deserialize({\n version: 14,\n states: ${qn(e,4294967295)},\n stateData: ${qn(t)},\n goto: ${qn(n)},\n nodeNames: ${JSON.stringify(i)},\n maxTerm: ${o}${T?`,\n context: ${T}`:""}${_.length?`,\n nodeProps: [\n ${_.join(",\n ")}\n ]`:""}${E.length?`,\n propSources: [${E.join()}]`:""}${r.length?`,\n skippedNodes: ${JSON.stringify(r)}`:""},\n repeatNodeCount: ${a},\n tokenData: ${qn(h)},\n tokenizers: [${M.join(", ")}],\n topRules: ${JSON.stringify(c)}${R.length?`,\n dialects: {${R.join(", ")}}`:""}${f?`,\n dynamicPrecedences: ${JSON.stringify(f)}`:""}${D.length?`,\n specialized: [${D.join(",")}]`:""},\n tokenPrec: ${p}${this.options.includeNames?`,\n termNames: ${JSON.stringify(m)}`:""}\n})`,I=[];for(let e in this.termTable){let t=e;if(Ci.includes(t))for(let n=1;t="_".repeat(n)+e,t in this.termTable;n++);I.push(`${t}${"cjs"==g?":":" ="} ${this.termTable[e]}`)}for(let e=0;e{e[n.id]||(e[n.id]=!0,t.push(n))};this.terms.tops.forEach(n);for(let e=0;et.prop==e));n||i.push(n={prop:e,values:{}}),(n.values[s.props[e]]||(n.values[s.props[e]]=[])).push(s.id)}}return{nodeProps:i.map((({prop:e,values:t})=>{let n=[];for(let e in t){let i=t[e];if(1==i.length)n.push(i[0],e);else{n.push(-i.length);for(let e of i)n.push(e);n.push(e)}}return{prop:e,terms:n}})),skippedTypes:n}}makeTerminal(e,t,n){return this.terms.makeTerminal(this.terms.uniqueName(e),t,n)}computeForceReductions(e,t){let n=[],i=[],s=Object.create(null);for(let t of e){n.push(0);for(let e of t.goto){let n=s[e.term.id]||(s[e.term.id]=[]),i=n.find((t=>t.target==e.target.id));i?i.parents.push(t.id):n.push({parents:[t.id],target:e.target.id})}i[t.id]=t.set.filter((e=>e.pos>0&&!e.rule.name.top)).sort(((e,t)=>t.pos-e.pos||e.rule.parts.length-t.rule.parts.length))}let r=Object.create(null);function o(e,t,n=null){let i=s[e];return!!i&&i.some((e=>{let i=n?n.filter((t=>e.parents.includes(t))):e.parents;if(0==i.length)return!1;if(e.target==t)return!0;let s=r[e.target];return null!=s&&o(s,t,i)}))}for(let i of e)i.defaultReduce&&i.defaultReduce.parts.length>0&&(n[i.id]=ei(i.defaultReduce,t),1==i.defaultReduce.parts.length&&(r[i.id]=i.defaultReduce.name.id));for(let s=1;;s++){let a=!0;for(let l of e){if(l.defaultReduce)continue;let e=i[l.id];if(e.length==s){for(let i of e)if(1!=i.pos||!o(i.rule.name.id,l.id)){n[l.id]=ei(i.rule,t,i.pos),1==i.pos&&(r[l.id]=i.rule.name.id);break}}else e.length>s&&(a=!1)}if(a)break}return n}substituteArgs(e,t,n){return 0==t.length?e:e.walk((e=>{let i;if(e instanceof rt&&(i=n.findIndex((t=>t.name==e.id.name)))>-1){let n=t[i];if(e.args.length){if(n instanceof rt&&!n.args.length)return new rt(e.start,n.id,e.args);this.raise("Passing arguments to a parameter that already has arguments",e.start)}return n}if(e instanceof at){let i=e.rule,s=this.substituteArgsInProps(i.props,t,n);return s==i.props?e:new at(e.start,new qe(i.start,i.id,s,i.params,i.expr))}if(e instanceof ot){let i=this.substituteArgsInProps(e.props,t,n);return i==e.props?e:new ot(e.start,e.type,i,e.token,e.content)}return e}))}substituteArgsInProps(e,t,n){let i=e=>{let i=e;for(let s=0;se.name==r.name));if(o<0)continue;i==e&&(i=e.slice());let a=t[o];a instanceof rt&&!a.args.length?i[s]=new wt(r.start,a.id.name,null):a instanceof ft?i[s]=new wt(r.start,a.value,null):this.raise(`Trying to interpolate expression '${a}' into a prop`,r.start)}return i},s=e;for(let t=0;te.id.name==i.id.name)):-1;s<0&&this.raise(`Reference to unknown precedence: '${i.id.name}'`,i.id.start);let r=e.items[s],o=e.items.length-s;"cut"==r.type?t=t.join(new Nt(0,Jn,o)):(t=t.join(new Nt(o<<2)),n=n.join(new Nt((o<<2)+("left"==r.type?1:"right"==r.type?-1:0))))}return{here:t,atEnd:n}}raise(e,t=1){return this.input.raise(e,t)}warn(e,t=-1){let n=this.input.message(e,t);this.options.warn?this.options.warn(n):console.warn(n)}defineRule(e,t){let n=this.currentSkip[this.currentSkip.length-1];for(let i of t)this.rules.push(new jt(e,i.terms,i.ensureConflicts(),n))}resolve(e){for(let t of this.built)if(t.matches(e))return[Gn(t.term)];let t=this.tokens.getToken(e);if(t)return[Gn(t)];for(let t of this.localTokens){let n=t.getToken(e);if(n)return[Gn(n)]}for(let t of this.externalTokens){let n=t.getToken(e);if(n)return[Gn(n)]}for(let t of this.externalSpecializers){let n=t.getToken(e);if(n)return[Gn(n)]}let n=this.astRules.find((t=>t.rule.id.name==e.id.name));return n?(n.rule.params.length!=e.args.length&&this.raise(`Wrong number or arguments for '${e.id.name}'`,e.start),this.used(n.rule.id.name),[Gn(this.buildRule(n.rule,e.args,n.skip))]):this.raise(`Reference to undefined rule '${e.id.name}'`,e.start)}normalizeRepeat(e){let t=this.built.find((t=>t.matchesRepeat(e)));if(t)return Gn(t.term);let n=e.expr.precthis.normalizeExpr(e))),n=this;return function i(s,r,o){let{here:a,atEnd:l}=n.conflictsFor(e.markers[r]);if(r==t.length)return[s.withConflicts(s.terms.length,a.join(o))];let h=[];for(let e of t[r])for(let t of i(s.concat(e).withConflicts(s.terms.length,a),r+1,o.join(l)))h.push(t);return h}(Un.none,0,Nt.none)}normalizeExpr(e){if(e instanceof ut&&"?"==e.kind)return[Un.none,...this.normalizeExpr(e.expr)];if(e instanceof ut){let t=this.normalizeRepeat(e);return"+"==e.kind?[t]:[Un.none,t]}return e instanceof lt?e.exprs.reduce(((e,t)=>e.concat(this.normalizeExpr(t))),[]):e instanceof ht?this.normalizeSequence(e):e instanceof ft?[Gn(this.tokens.getLiteral(e))]:e instanceof rt?this.resolve(e):e instanceof ot?[Gn(this.resolveSpecialization(e))]:e instanceof at?[Gn(this.buildRule(e.rule,Jn,this.currentSkip[this.currentSkip.length-1],!0))]:this.raise(`This type of expression ('${e}') may not occur in non-token rules`,e.start)}buildRule(e,t,n,i=!1){let s=this.substituteArgs(e.expr,t,e.params),{name:r,props:o,dynamicPrec:a,inline:l,group:h,exported:c}=this.nodeInfo(e.props||Jn,i?"pg":"pgi",e.id.name,t,e.params,e.expr);c&&e.params.length&&this.warn("Can't export parameterized rules",e.start),c&&i&&this.warn("Can't export inline rule",e.start);let u=this.newName(e.id.name+(t.length?"<"+t.join(",")+">":""),r||!0,o);return l&&(u.inline=!0),a&&this.registerDynamicPrec(u,a),(u.nodeType||c)&&0==e.params.length&&(r||(u.preserve=!0),i||(this.namedTerms[c||e.id.name]=u)),i||this.built.push(new Kn(e.id.name,t,u)),this.currentSkip.push(n),this.defineRule(u,this.normalizeExpr(s)),this.currentSkip.pop(),h&&this.definedGroups.push({name:u,group:h,rule:e}),u}nodeInfo(e,t,n=null,i=Jn,s=Jn,r,o){let a={},l=n&&(t.indexOf("a")>-1||!function(e){let t=e[0];return"_"==t||t.toUpperCase()!=t}(n))&&!/ /.test(n)?n:null,h=null,c=0,u=!1,f=null,d=null;for(let r of e)if(r.at)if("name"==r.name)l=this.finishProp(r,i,s),/ /.test(l)&&this.raise(`Node names cannot have spaces ('${l}')`,r.start);else if("dialect"==r.name){t.indexOf("d")<0&&this.raise("Can't specify a dialect on non-token rules",e[0].start),1==r.value.length||r.value[0].value||this.raise("The '@dialect' rule prop must hold a plain string value");let n=this.dialects.indexOf(r.value[0].value);n<0&&this.raise(`Unknown dialect '${r.value[0].value}'`,r.value[0].start),h=n}else"dynamicPrecedence"==r.name?(t.indexOf("p")<0&&this.raise("Dynamic precedence can only be specified on nonterminals"),1==r.value.length&&/^-?(?:10|\d)$/.test(r.value[0].value)||this.raise("The '@dynamicPrecedence' rule prop must hold an integer between -10 and 10"),c=+r.value[0].value):"inline"==r.name?(r.value.length&&this.raise("'@inline' doesn't take a value",r.value[0].start),t.indexOf("i")<0&&this.raise("Inline can only be specified on nonterminals"),u=!0):"isGroup"==r.name?(t.indexOf("g")<0&&this.raise("'@isGroup' can only be specified on nonterminals"),f=r.value.length?this.finishProp(r,i,s):n):"export"==r.name?d=r.value.length?this.finishProp(r,i,s):n:this.raise(`Unknown built-in prop name '@${r.name}'`,r.start);else{if(!this.knownProps[r.name]){let e=["name","dialect","dynamicPrecedence","export","isGroup"].includes(r.name)?` (did you mean '@${r.name}'?)`:"";this.raise(`Unknown prop name '${r.name}'${e}`,r.start)}a[r.name]=this.finishProp(r,i,s)}if(r&&this.ast.autoDelim&&(l||At(a))){let e=this.findDelimiters(r);e&&(Qn(e[0],"closedBy",e[1].nodeName),Qn(e[1],"openedBy",e[0].nodeName))}if(o&&At(o))for(let e in o)e in a||(a[e]=o[e]);return At(a)&&!l&&this.raise("Node has properties but no name",e.length?e[0].start:r.start),u&&(At(a)||h||c)&&this.raise("Inline nodes can't have props, dynamic precedence, or a dialect",e[0].start),u&&l&&(l=null),{name:l,props:a,dialect:h,dynamicPrec:c,inline:u,group:f,exported:d}}finishProp(e,t,n){return e.value.map((e=>{if(e.value)return e.value;let i=n.findIndex((t=>t.name==e.name));i<0&&this.raise(`Property refers to '${e.name}', but no parameter by that name is in scope`,e.start);let s=t[i];return s instanceof rt&&!s.args.length?s.id.name:s instanceof ft?s.value:this.raise(`Expression '${s}' can not be used as part of a property value`,e.start)})).join("")}resolveSpecialization(e){let t,n=e.type,{name:i,props:s,dialect:r}=this.nodeInfo(e.props,"d"),o=this.normalizeExpr(e.token);if(1==o.length&&1==o[0].terms.length&&o[0].terms[0].terminal||this.raise(`The first argument to '${n}' must resolve to a token`,e.token.start),e.content instanceof ft)t=[e.content.value];else{if(!(e.content instanceof lt&&e.content.exprs.every((e=>e instanceof ft))))return this.raise(`The second argument to '${e.type}' must be a literal or choice of literals`,e.content.start);t=e.content.exprs.map((e=>e.value))}let a=o[0].terms[0],l=null,h=this.specialized[a.name]||(this.specialized[a.name]=[]);for(let o of t){let t=h.find((e=>e.value==o));null==t?(l||(l=this.makeTerminal(a.name+"/"+JSON.stringify(o),i,s),null!=r&&(this.tokens.byDialect[r]||(this.tokens.byDialect[r]=[])).push(l)),h.push({value:o,term:l,type:n,dialect:r,name:i}),this.tokenOrigins[l.name]={spec:a}):(t.type!=n&&this.raise(`Conflicting specialization types for ${JSON.stringify(o)} of ${a.name} (${n} vs ${t.type})`,e.start),t.dialect!=r&&this.raise(`Conflicting dialects for specialization ${JSON.stringify(o)} of ${a.name}`,e.start),t.name!=i&&this.raise(`Conflicting names for specialization ${JSON.stringify(o)} of ${a.name}`,e.start),l&&t.term!=l&&this.raise(`Conflicting specialization tokens for ${JSON.stringify(o)} of ${a.name}`,e.start),l=t.term)}return l}findDelimiters(e){if(!(e instanceof ht)||e.exprs.length<2)return null;let t=e=>{if(e instanceof ft)return{term:this.tokens.getLiteral(e),str:e.value};if(e instanceof rt&&0==e.args.length){let n=this.ast.rules.find((t=>t.id.name==e.id.name));if(n)return t(n.expr);let i=this.tokens.rules.find((t=>t.id.name==e.id.name));if(i&&i.expr instanceof ft)return{term:this.tokens.getToken(e),str:i.expr.value}}return null},n=t(e.exprs[e.exprs.length-1]);if(!n||!n.term.nodeName)return null;let i=["()","[]","{}","<>"].find((e=>n.str.indexOf(e[1])>-1&&n.str.indexOf(e[0])<0));if(!i)return null;let s=t(e.exprs[0]);return!s||!s.term.nodeName||s.str.indexOf(i[0])<0||s.str.indexOf(i[1])>-1?null:[s.term,n.term]}registerDynamicPrec(e,t){this.dynamicRulePrecedences.push({rule:e,prec:t}),e.preserve=!0}defineGroup(e,t,n){var i;let s=[],r=e=>{if(e.nodeName)return[e];s.includes(e)&&this.raise(`Rule '${n.id.name}' cannot define a group because it contains a non-named recursive rule ('${e.name}')`,n.start);let t=[];s.push(e);for(let i of this.rules)if(i.name==e){let e=i.parts.map(r).filter((e=>e.length));if(e.length>1&&this.raise(`Rule '${n.id.name}' cannot define a group because some choices produce multiple named nodes`,n.start),1==e.length)for(let n of e[0])t.push(n)}return s.pop(),t};for(let n of r(e))n.props.group=((null===(i=n.props.group)||void 0===i?void 0:i.split(" "))||[]).concat(t).sort().join(" ")}checkGroups(){let e=Object.create(null),t=Object.create(null);for(let n of this.terms.terms)if(n.nodeName&&(t[n.nodeName]=!0,n.props.group))for(let t of n.props.group.split(" "))(e[t]||(e[t]=[])).push(n);let n=Object.keys(e);for(let i=0;ii.includes(e)))&&(r.length>i.length?i.some((e=>!r.includes(e))):r.some((e=>!i.includes(e))))&&this.warn(`Groups '${s}' and '${n[t]}' overlap without one being a superset of the other`)}}}}class Xn{constructor(e,t,n,i,s,r,o){this.tokenizers=e,this.data=t,this.stateArray=n,this.skipData=i,this.skipInfo=s,this.states=r,this.builder=o,this.sharedActions=[]}findSharedActions(e){if(e.actions.length<5)return null;let t=null;for(let n of this.sharedActions)(!t||n.actions.length>t.actions.length)&&n.actions.every((t=>e.actions.some((e=>e.eq(t)))))&&(t=n);if(t)return t;let n=null,i=[];for(let t=e.id+1;t=5&&(!n||n.lengthe.eq(s))))if(s instanceof Nn)i.push(s.term.id,s.target.id,0);else{let e=ei(s.rule,this.skipInfo);e!=t&&i.push(s.term.id,65535&e,e>>16)}return i.push(65535),t>-1?i.push(2,65535&t,t>>16):n?i.push(1,65535&n.addr,n.addr>>16):i.push(0),this.data.storeArray(i)}finish(e,t,n){let i=this.builder,s=i.skipRules.indexOf(e.skip),r=this.skipData[s],o=this.skipInfo[s].startTokens,a=e.defaultReduce?ei(e.defaultReduce,this.skipInfo):0,l=t?1:0,h=-1,c=null;if(0==a){if(t)for(const t of e.actions)t instanceof Dn&&t.term.eof&&(h=ei(t.rule,this.skipInfo));h<0&&(c=this.findSharedActions(e))}e.set.some((e=>e.rule.name.top&&e.pos==e.rule.parts.length))&&(l|=2);let u=[];for(let t=0;tt.rule==e.name))?262144:0)|n<<19}class ti{constructor(){this.data=[]}storeArray(e){let t=function(e,t){e:for(let n=0;;){let i=e.indexOf(t[0],n);if(-1==i||i+t.length>e.length)break;for(let s=1;s-1)return t;let n=this.data.length;for(let t of e)this.data.push(t);return n}finish(){return Uint16Array.from(this.data)}}function ni(e){let t={},n=0;for(let i of e)for(let e of i.goto){n=Math.max(e.term.id,n);let s=t[e.term.id]||(t[e.term.id]={});(s[e.target.id]||(s[e.target.id]=[])).push(i.id)}let i=new ti,s=[],r=n+2;for(let e=0;e<=n;e++){let n=t[e];if(!n){s.push(1);continue}let o=[],a=Object.keys(n);for(let e of a){let t=n[e];o.push((e==a[a.length-1]?1:0)+(t.length<<1)),o.push(+e);for(let e of t)o.push(e)}s.push(i.storeArray(o)+r)}if(s.some((e=>e>65535)))throw new St("Goto table too large");return Uint16Array.from([n+1,...s,...i.data])}class ii{constructor(e,t){this.tokens=e,this.groupID=t}create(){return this.groupID}createSource(){return String(this.groupID)}}function si(e,t){e.includes(t)||e.push(t)}function ri(e){let t=Object.create(null);for(let n of e){let e=1<e.id.name==t));if(!n)return null;let{name:i,props:s,dialect:r,exported:o}=this.b.nodeInfo(n.props,"d",t,e.args,n.params.length!=e.args.length?Jn:n.params),a=this.b.makeTerminal(e.toString(),i,s);return null!=r&&(this.byDialect[r]||(this.byDialect[r]=[])).push(a),(a.nodeType||o)&&0==n.params.length&&(a.nodeType||(a.preserve=!0),this.b.namedTerms[o||t]=a),this.buildRule(n,e,this.startState,new zt([a])),this.built.push(new Kn(t,e.args,a)),a}buildRule(e,t,n,i,s=Jn){let r=t.id.name;e.params.length!=t.args.length&&this.b.raise(`Incorrect number of arguments for token '${r}'`,t.start);let o=this.building.find((e=>e.name==r&&vt(t.args,e.args)));if(o){if(o.to==i)return void n.nullEdge(o.start);let e=this.building.length-1;for(;this.building[e].name!=r;)e--;this.b.raise(`Invalid (non-tail) recursion in token rules: ${this.building.slice(e).map((e=>e.name)).join(" -> ")}`,t.start)}this.b.used(e.id.name);let a=new zt;n.nullEdge(a),this.building.push(new ai(r,a,i,t.args)),this.build(this.b.substituteArgs(e.expr,t.args,e.params),a,i,t.args.map(((t,n)=>new oi(e.params[n].name,t,s)))),this.building.pop()}build(e,t,n,i){if(e instanceof rt){let s,r=e.id.name,o=i.find((e=>e.name==r));if(o)return this.build(o.expr,t,n,o.scope);for(let e=0,t=this.b.localTokens;e<=t.length;e++)s=(e==t.length?this.b.tokens:t[e]).rules.find((e=>e.id.name==r));if(!s)return this.b.raise(`Reference to token rule '${e.id.name}', which isn't found`,e.start);this.buildRule(s,e,t,n,i)}else if(e instanceof bt)for(let[i,s]of gt[e.type])t.edge(i,s,n);else if(e instanceof lt)for(let s of e.exprs)this.build(s,t,n,i);else if(yi(e))t.nullEdge(n);else if(e instanceof ht){let s=e.markers.find((e=>e.length>0));s&&this.b.raise("Conflict marker in token expression",s[0].start);for(let s=0;st&&n.push([t,i]),t=s;return t<=pi&&n.push([t,pi+1]),n}(e.ranges):e.ranges)bi(t,n,i,s);else if(e instanceof ft)for(let i=0;it.id==e));n&&t.push(n.term)}t.length||this.b.warn(`Precedence specified for unknown token ${i}`,i.start);for(let i of t)wi(e,i,n);n=n.concat(t)}}}precededBy(e,t){let n=this.precedenceRelations.find((t=>t.term==e));return n&&n.after.includes(t)}buildPrecTable(e){let t=[],n=this.precedenceRelations.slice();for(let{a:t,b:i,soft:s}of e)if(s){if(!n.some((e=>e.term==t))||!n.some((e=>e.term==i)))continue;s<0&&([t,i]=[i,t]),wi(n,i,[t]),wi(n,t,[])}e:for(;n.length;){for(let e=0;et.includes(e.id)))){if(t.push(i.term.id),1==n.length)break e;n[e]=n.pop();continue e}}this.b.raise(`Cyclic token precedence relation between ${n.map((e=>e.term)).join(", ")}`)}return t}}class hi extends li{constructor(){super(...arguments),this.explicitConflicts=[]}getLiteral(e){let t=JSON.stringify(e.value);for(let e of this.built)if(e.id==t)return e.term;let n=null,i={},s=null,r=null,o=this.ast?this.ast.literals.find((t=>t.literal==e.value)):null;o&&({name:n,props:i,dialect:s,exported:r}=this.b.nodeInfo(o.props,"da",e.value));let a=this.b.makeTerminal(t,n,i);return null!=s&&(this.byDialect[s]||(this.byDialect[s]=[])).push(a),r&&(this.b.namedTerms[r]=a),this.build(e,this.startState,new zt([a]),Jn),this.built.push(new Kn(t,Jn,a)),a}takeConflicts(){var e;let t=e=>{if(e instanceof rt){for(let t of this.built)if(t.matches(e))return t.term}else{let t=JSON.stringify(e.value),n=this.built.find((e=>e.id==t));if(n)return n.term}return this.b.warn(`Precedence specified for unknown token ${e}`,e.start),null};for(let n of(null===(e=this.ast)||void 0===e?void 0:e.conflicts)||[]){let 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s=e.computeSlot(e,e.config.dynamicSlots[n]);return e.status[n]=2|s}function ie(e,t){return 1&t?e.config.staticValues[t>>1]:e.values[t>>1]}const se=L.define(),re=L.define({combine:e=>e.some((e=>e)),static:!0}),oe=L.define({combine:e=>e.length?e[0]:void 0,static:!0}),ae=L.define(),le=L.define(),he=L.define(),ce=L.define({combine:e=>!!e.length&&e[0]});class ue{constructor(e,t){this.type=e,this.value=t}static define(){return new fe}}class fe{of(e){return new ue(this,e)}}class de{constructor(e){this.map=e}of(e){return new pe(this,e)}}class pe{constructor(e,t){this.type=e,this.value=t}map(e){let t=this.type.map(this.value,e);return void 0===t?void 0:t==this.value?this:new pe(this.type,t)}is(e){return this.type==e}static define(e={}){return new de(e.map||(e=>e))}static mapEffects(e,t){if(!e.length)return e;let n=[];for(let i of e){let e=i.map(t);e&&n.push(e)}return n}}pe.reconfigure=pe.define(),pe.appendConfig=pe.define();class 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G(this.text.slice(this.textOff,this.textOff+i)),t),n),this.atCursorPos=!0,this.textOff+=i,e-=i,n=0}}span(e,t,n,i){this.buildText(t-e,n,i),this.pos=t,this.openStart<0&&(this.openStart=i)}point(e,t,n,i,s,r){if(this.disallowBlockEffectsFor[r]&&n instanceof de){if(n.block)throw new RangeError("Block decorations may not be specified via plugins");if(t>this.doc.lineAt(this.pos).to)throw new RangeError("Decorations that replace line breaks may not be specified via plugins")}let o=t-e;if(n instanceof de)if(n.block)n.startSide>0&&!this.posCovered()&&this.getLine(),this.addBlockWidget(new ae(n.widget||new ye("div"),o,n));else{let r=Y.create(n.widget||new ye("span"),o,o?0:n.startSide),a=this.atCursorPos&&!r.isEditable&&s<=i.length&&(e0),l=!r.isEditable&&(ei.length||n.startSide<=0),h=this.getLine();2!=this.pendingBuffer||a||r.isEditable||(this.pendingBuffer=0),this.flushBuffer(i),a&&(h.append(be(new X(1),i),s),s=i.length+Math.max(0,s-i.length)),h.append(be(r,i),s),this.atCursorPos=l,this.pendingBuffer=l?ei.length?1:2:0,this.pendingBuffer&&(this.bufferMarks=i.slice())}else this.doc.lineAt(this.pos).from==this.pos&&this.getLine().addLineDeco(n);o&&(this.textOff+o<=this.text.length?this.textOff+=o:(this.skip+=o-(this.text.length-this.textOff),this.text="",this.textOff=0),this.pos=t),this.openStart<0&&(this.openStart=s)}static build(e,t,n,s,r){let o=new ge(e,t,n,r);return o.openEnd=i.Xs.spans(s,t,n,o),o.openStart<0&&(o.openStart=o.openEnd),o.finish(o.openEnd),o}}function be(e,t){for(let n of t)e=new K(n,[e],e.length);return e}class ye extends le{constructor(e){super(),this.tag=e}eq(e){return e.tag==this.tag}toDOM(){return document.createElement(this.tag)}updateDOM(e){return e.nodeName.toLowerCase()==this.tag}get isHidden(){return!0}}const ve=i.r$.define(),xe=i.r$.define(),we=i.r$.define(),ke=i.r$.define(),Se=i.r$.define(),Ae=i.r$.define(),Ce=i.r$.define(),Oe=i.r$.define({combine:e=>e.some((e=>e))}),Me=i.r$.define({combine:e=>e.some((e=>e))});class Te{constructor(e,t="nearest",n="nearest",i=5,s=5,r=!1){this.range=e,this.y=t,this.x=n,this.yMargin=i,this.xMargin=s,this.isSnapshot=r}map(e){return e.empty?this:new Te(this.range.map(e),this.y,this.x,this.yMargin,this.xMargin,this.isSnapshot)}clip(e){return this.range.to<=e.doc.length?this:new Te(i.jT.cursor(e.doc.length),this.y,this.x,this.yMargin,this.xMargin,this.isSnapshot)}}const _e=i.Py.define({map:(e,t)=>e.map(t)});function Ne(e,t,n){let i=e.facet(ke);i.length?i[0](t):window.onerror?window.onerror(String(t),n,void 0,void 0,t):n?console.error(n+":",t):console.error(t)}const De=i.r$.define({combine:e=>!e.length||e[0]});let Ee=0;const je=i.r$.define();class 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qe{constructor(e,t,n,i){this.fromA=e,this.toA=t,this.fromB=n,this.toB=i}join(e){return new qe(Math.min(this.fromA,e.fromA),Math.max(this.toA,e.toA),Math.min(this.fromB,e.fromB),Math.max(this.toB,e.toB))}addToSet(e){let t=e.length,n=this;for(;t>0;t--){let i=e[t-1];if(!(i.fromA>n.toA)){if(i.toAh)break;s+=2}if(!a)return n;new qe(a.fromA,a.toA,a.fromB,a.toB).addToSet(n),r=a.toA,o=a.toB}}}class Je{constructor(e,t,n){this.view=e,this.state=t,this.transactions=n,this.flags=0,this.startState=e.state,this.changes=i.as.empty(this.startState.doc.length);for(let e of n)this.changes=this.changes.compose(e.changes);let s=[];this.changes.iterChangedRanges(((e,t,n,i)=>s.push(new qe(e,t,n,i)))),this.changedRanges=s}static create(e,t,n){return new Je(e,t,n)}get viewportChanged(){return(4&this.flags)>0}get heightChanged(){return(2&this.flags)>0}get geometryChanged(){return this.docChanged||(10&this.flags)>0}get focusChanged(){return(1&this.flags)>0}get docChanged(){return!this.changes.empty}get selectionSet(){return this.transactions.some((e=>e.selection))}get empty(){return 0==this.flags&&0==this.transactions.length}}var Ue=function(e){return e[e.LTR=0]="LTR",e[e.RTL=1]="RTL",e}(Ue||(Ue={}));const Ge=Ue.LTR,Ke=Ue.RTL;function Ye(e){let t=[];for(let n=0;n=t){if(o.level==n)return r;(s<0||(0!=i?i<0?o.fromt:e[s].level>o.level))&&(s=r)}}if(s<0)throw new RangeError("Index out of range");return s}}function it(e,t){if(e.length!=t.length)return!1;for(let n=0;nl&&o.push(new nt(l,p.from,f)),ot(e,p.direction==Ge!=!(f%2)?i+1:i,s,p.inner,p.from,p.to,o),l=p.to),d=p.to}else{if(d==n||(t?st[d]!=a:st[d]==a))break;d++}u?rt(e,l,d,i+1,s,u,o):lt;){let n=!0,c=!1;if(!h||l>r[h-1].to){let e=st[l-1];e!=a&&(n=!1,c=16==e)}let u=n||1!=a?null:[],f=n?i:i+1,d=l;e:for(;;)if(h&&d==r[h-1].to){if(c)break e;let p=r[--h];if(!n)for(let e=p.from,n=h;;){if(e==t)break e;if(!n||r[n-1].to!=e){if(st[e-1]==a)break e;break}e=r[--n].from}u?u.push(p):(p.to=0;e-=3)if(et[e+1]==-n){let t=et[e+2],n=2&t?s:4&t?1&t?r:s:0;n&&(st[o]=st[et[e]]=n),a=e;break}}else{if(189==et.length)break;et[a++]=o,et[a++]=t,et[a++]=l}else if(2==(i=st[o])||1==i){let e=i==s;l=e?0:1;for(let t=a-3;t>=0;t-=3){let n=et[t+2];if(2&n)break;if(e)et[t+2]|=2;else{if(4&n)break;et[t+2]|=4}}}}}(e,s,r,i,a),function(e,t,n,i){for(let s=0,r=i;s<=n.length;s++){let o=s?n[s-1].to:e,a=sl;)t==r&&(t=n[--i].from,r=i?n[i-1].to:e),st[--t]=c;l=o}else r=o,l++}}}(s,r,i,a),rt(e,s,r,t,n,i,o)}function at(e){return[new nt(0,e,0)]}let lt="";function ht(e,t,n,s,r){var o;let a=s.head-e.from,l=-1;if(0==a){if(!r||!e.length)return null;t[0].level!=n&&(a=t[0].side(!1,n),l=0)}else if(a==e.length){if(r)return null;let e=t[t.length-1];e.level!=n&&(a=e.side(!0,n),l=t.length-1)}l<0&&(l=nt.find(t,a,null!==(o=s.bidiLevel)&&void 0!==o?o:-1,s.assoc));let h=t[l];a==h.side(r,n)&&(h=t[l+=r?1:-1],a=h.side(!r,n));let c=r==(h.dir==n),u=(0,i.cp)(e.text,a,c);if(lt=e.text.slice(Math.min(a,u),Math.max(a,u)),u!=h.side(r,n))return i.jT.cursor(u+e.from,c?-1:1,h.level);let f=l==(r?t.length-1:0)?null:t[l+(r?1:-1)];return f||h.level==n?f&&f.level0&&n.length&&(n.every((({fromA:e,toA:t})=>tthis.minWidthTo))?(this.minWidthFrom=e.changes.mapPos(this.minWidthFrom,1),this.minWidthTo=e.changes.mapPos(this.minWidthTo,1)):this.minWidth=this.minWidthFrom=this.minWidthTo=0);let s=-1;this.view.inputState.composing>=0&&((null===(t=this.domChanged)||void 0===t?void 0:t.newSel)?s=this.domChanged.newSel.head:function(e,t){let n=!1;return t&&e.iterChangedRanges(((e,i)=>{et.from&&(n=!0)})),n}(e.changes,this.hasComposition)||e.selectionSet||(s=e.state.selection.main.head));let r=s>-1?function(e,t,n){let i=ft(e,n);if(!i)return null;let{node:s,from:r,to:o}=i,a=s.nodeValue;if(/[\n\r]/.test(a))return null;if(e.state.doc.sliceString(i.from,i.to)!=a)return null;let l=t.invertedDesc,h=new qe(l.mapPos(r),l.mapPos(o),r,o),c=[];for(let t=s.parentNode;;t=t.parentNode){let n=D.get(t);if(n instanceof K)c.push({node:t,deco:n.mark});else{if(n instanceof oe||"DIV"==t.nodeName&&t.parentNode==e.contentDOM)return{range:h,text:s,marks:c,line:t};if(t==e.contentDOM)return null;c.push({node:t,deco:new ue({inclusive:!0,attributes:re(t),tagName:t.tagName.toLowerCase()})})}}}(this.view,e.changes,s):null;if(this.domChanged=null,this.hasComposition){this.markedForComposition.clear();let{from:t,to:i}=this.hasComposition;n=new qe(t,i,e.changes.mapPos(t,-1),e.changes.mapPos(i,1)).addToSet(n.slice())}this.hasComposition=r?{from:r.range.fromB,to:r.range.toB}:null,(U.ie||U.chrome)&&!r&&e&&e.state.doc.lines!=e.startState.doc.lines&&(this.forceSelection=!0);let o=function(e,t,n){let s=new pt;return i.Xs.compare(e,t,n,s),s.changes}(this.decorations,this.updateDeco(),e.changes);return n=qe.extendWithRanges(n,o),!!(7&this.flags||0!=n.length)&&(this.updateInner(n,e.startState.doc.length,r),e.transactions.length&&(this.lastUpdate=Date.now()),!0)}updateInner(e,t,n){this.view.viewState.mustMeasureContent=!0,this.updateChildren(e,t,n);let{observer:i}=this.view;i.ignore((()=>{this.dom.style.height=this.view.viewState.contentHeight/this.view.scaleY+"px",this.dom.style.flexBasis=this.minWidth?this.minWidth+"px":"";let e=U.chrome||U.ios?{node:i.selectionRange.focusNode,written:!1}:void 0;this.sync(this.view,e),this.flags&=-8,e&&(e.written||i.selectionRange.focusNode!=e.node)&&(this.forceSelection=!0),this.dom.style.height=""})),this.markedForComposition.forEach((e=>e.flags&=-9));let s=[];if(this.view.viewport.from||this.view.viewport.to=0?i[e]:null;if(!t)break;let r,o,a,l,{fromA:h,toA:c,fromB:u,toB:f}=t;if(n&&n.range.fromBu){let e=ge.build(this.view.state.doc,u,n.range.fromB,this.decorations,this.dynamicDecorationMap),t=ge.build(this.view.state.doc,n.range.toB,f,this.decorations,this.dynamicDecorationMap);o=e.breakAtStart,a=e.openStart,l=t.openEnd;let i=this.compositionView(n);t.breakAtStart?i.breakAfter=1:t.content.length&&i.merge(i.length,i.length,t.content[0],!1,t.openStart,0)&&(i.breakAfter=t.content[0].breakAfter,t.content.shift()),e.content.length&&i.merge(0,0,e.content[e.content.length-1],!0,0,e.openEnd)&&e.content.pop(),r=e.content.concat(i).concat(t.content)}else({content:r,breakAtStart:o,openStart:a,openEnd:l}=ge.build(this.view.state.doc,u,f,this.decorations,this.dynamicDecorationMap));let{i:d,off:p}=s.findPos(c,1),{i:m,off:g}=s.findPos(h,-1);R(this,m,g,d,p,r,o,a,l)}n&&this.fixCompositionDOM(n)}compositionView(e){let t=new G(e.text.nodeValue);t.flags|=8;for(let{deco:n}of e.marks)t=new K(n,[t],t.length);let n=new oe;return n.append(t,0),n}fixCompositionDOM(e){let t=(e,t)=>{t.flags|=8|(t.children.some((e=>7&e.flags))?1:0),this.markedForComposition.add(t);let n=D.get(e);n&&n!=t&&(n.dom=null),t.setDOM(e)},n=this.childPos(e.range.fromB,1),i=this.children[n.i];t(e.line,i);for(let s=e.marks.length-1;s>=-1;s--)n=i.childPos(n.off,1),i=i.children[n.i],t(s>=0?e.marks[s].node:e.text,i)}updateSelection(e=!1,t=!1){!e&&this.view.observer.selectionRange.focusNode||this.view.observer.readSelectionRange();let n=this.view.root.activeElement,i=n==this.dom,s=!i&&d(this.dom,this.view.observer.selectionRange)&&!(n&&this.dom.contains(n));if(!(i||t||s))return;let r=this.forceSelection;this.forceSelection=!1;let o=this.view.state.selection.main,a=this.moveToLine(this.domAtPos(o.anchor)),l=o.empty?a:this.moveToLine(this.domAtPos(o.head));if(U.gecko&&o.empty&&!this.hasComposition&&1==(h=a).node.nodeType&&h.node.firstChild&&(0==h.offset||"false"==h.node.childNodes[h.offset-1].contentEditable)&&(h.offset==h.node.childNodes.length||"false"==h.node.childNodes[h.offset].contentEditable)){let e=document.createTextNode("");this.view.observer.ignore((()=>a.node.insertBefore(e,a.node.childNodes[a.offset]||null))),a=l=new _(e,0),r=!0}var h;let c=this.view.observer.selectionRange;!r&&c.focusNode&&m(a.node,a.offset,c.anchorNode,c.anchorOffset)&&m(l.node,l.offset,c.focusNode,c.focusOffset)||(this.view.observer.ignore((()=>{U.android&&U.chrome&&this.dom.contains(c.focusNode)&&function(e,t){for(let n=e;n&&n!=t;n=n.assignedSlot||n.parentNode)if(1==n.nodeType&&"false"==n.contentEditable)return!0;return!1}(c.focusNode,this.dom)&&(this.dom.blur(),this.dom.focus({preventScroll:!0}));let e=u(this.view.root);if(e)if(o.empty){if(U.gecko){let e=(t=a.node,i=a.offset,1!=t.nodeType?0:(i&&"false"==t.childNodes[i-1].contentEditable?1:0)|(io.head&&([a,l]=[l,a]),t.setEnd(l.node,l.offset),t.setStart(a.node,a.offset),e.removeAllRanges(),e.addRange(t)}var t,i;s&&this.view.root.activeElement==this.dom&&(this.dom.blur(),n&&n.focus())})),this.view.observer.setSelectionRange(a,l)),this.impreciseAnchor=a.precise?null:new _(c.anchorNode,c.anchorOffset),this.impreciseHead=l.precise?null:new _(c.focusNode,c.focusOffset)}enforceCursorAssoc(){if(this.hasComposition)return;let{view:e}=this,t=e.state.selection.main,n=u(e.root),{anchorNode:i,anchorOffset:s}=e.observer.selectionRange;if(!(n&&t.empty&&t.assoc&&n.modify))return;let r=oe.find(this,t.head);if(!r)return;let o=r.posAtStart;if(t.head==o||t.head==o+r.length)return;let a=this.coordsAt(t.head,-1),l=this.coordsAt(t.head,1);if(!a||!l||a.bottom>l.top)return;let h=this.domAtPos(t.head+t.assoc);n.collapse(h.node,h.offset),n.modify("move",t.assoc<0?"forward":"backward","lineboundary"),e.observer.readSelectionRange();let c=e.observer.selectionRange;e.docView.posFromDOM(c.anchorNode,c.anchorOffset)!=t.from&&n.collapse(i,s)}moveToLine(e){let t,n=this.dom;if(e.node!=n)return e;for(let i=e.offset;!t&&i=0;i--){let e=D.get(n.childNodes[i]);e instanceof oe&&(t=e.domAtPos(e.length))}return t?new _(t.node,t.offset,!0):e}nearest(e){for(let t=e;t;){let e=D.get(t);if(e&&e.rootView==this)return e;t=t.parentNode}return null}posFromDOM(e,t){let n=this.nearest(e);if(!n)throw new RangeError("Trying to find position for a DOM position outside of the document");return n.localPosFromDOM(e,t)+n.posAtStart}domAtPos(e){let{i:t,off:n}=this.childCursor().findPos(e,-1);for(;t=0;r--){let o=this.children[r],a=s-o.breakAfter,l=a-o.length;if(ae||o.covers(1))&&(!n||o instanceof oe&&!(n instanceof oe&&t>=0))&&(n=o,i=l),s=l}return n?n.coordsAt(e-i,t):null}coordsForChar(e){let{i:t,off:n}=this.childPos(e,1),s=this.children[t];if(!(s instanceof oe))return null;for(;s.children.length;){let{i:e,off:t}=s.childPos(n,1);for(;;e++){if(e==s.children.length)return null;if((s=s.children[e]).length)break}n=t}if(!(s instanceof G))return null;let r=(0,i.cp)(s.text,n);if(r==n)return null;let o=C(s.dom,n,r).getClientRects();for(let e=0;eMath.max(this.view.scrollDOM.clientWidth,this.minWidth)+1,o=-1,a=this.view.textDirection==Ue.LTR;for(let e=0,l=0;li)break;if(e>=n){let n=h.dom.getBoundingClientRect();if(t.push(n.height),r){let t=h.dom.lastChild,i=t?p(t):[];if(i.length){let t=i[i.length-1],r=a?t.right-n.left:n.right-t.left;r>o&&(o=r,this.minWidth=s,this.minWidthFrom=e,this.minWidthTo=c)}}}e=c+h.breakAfter}return t}textDirectionAt(e){let{i:t}=this.childPos(e,1);return"rtl"==getComputedStyle(this.children[t].dom).direction?Ue.RTL:Ue.LTR}measureTextSize(){for(let e of this.children)if(e instanceof oe){let t=e.measureTextSize();if(t)return t}let e,t,n,i=document.createElement("div");return i.className="cm-line",i.style.width="99999px",i.style.position="absolute",i.textContent="abc def ghi jkl mno pqr stu",this.view.observer.ignore((()=>{this.dom.appendChild(i);let s=p(i.firstChild)[0];e=i.getBoundingClientRect().height,t=s?s.width/27:7,n=s?s.height:e,i.remove()})),{lineHeight:e,charWidth:t,textHeight:n}}childCursor(e=this.length){let t=this.children.length;return t&&(e-=this.children[--t].length),new j(this.children,e,t)}computeBlockGapDeco(){let e=[],t=this.view.viewState;for(let n=0,i=0;;i++){let s=i==t.viewports.length?null:t.viewports[i],r=s?s.from-1:this.length;if(r>n){let i=(t.lineBlockAt(r).bottom-t.lineBlockAt(n).top)/this.view.scaleY;e.push(ce.replace({widget:new ut(i),block:!0,inclusive:!0,isBlockGap:!0}).range(n,r))}if(!s)break;n=s.to+1}return ce.set(e)}updateDeco(){let e=this.view.state.facet(Le).map(((e,t)=>(this.dynamicDecorationMap[t]="function"==typeof e)?e(this.view):e));for(let t=e.length;tn.anchor?-1:1);if(!i)return;!n.empty&&(t=this.coordsAt(n.anchor,n.anchor>n.head?-1:1))&&(i={left:Math.min(i.left,t.left),top:Math.min(i.top,t.top),right:Math.max(i.right,t.right),bottom:Math.max(i.bottom,t.bottom)});let s=Ve(this.view),r={left:i.left-s.left,top:i.top-s.top,right:i.right+s.right,bottom:i.bottom+s.bottom},{offsetWidth:o,offsetHeight:a}=this.view.scrollDOM;!function(e,t,n,i,s,r,o,a){let l=e.ownerDocument,h=l.defaultView||window;for(let c=e,u=!1;c&&!u;)if(1==c.nodeType){let e,f=c==l.body,d=1,p=1;if(f)e=x(h);else{if(/^(fixed|sticky)$/.test(getComputedStyle(c).position)&&(u=!0),c.scrollHeight<=c.clientHeight&&c.scrollWidth<=c.clientWidth){c=c.assignedSlot||c.parentNode;continue}let t=c.getBoundingClientRect();d=t.width/c.offsetWidth,p=t.height/c.offsetHeight,e={left:t.left,right:t.left+c.clientWidth*d,top:t.top,bottom:t.top+c.clientHeight*p}}let m=0,g=0;if("nearest"==s)t.top0&&t.bottom>e.bottom+g&&(g=t.bottom-e.bottom+g+o)):t.bottom>e.bottom&&(g=t.bottom-e.bottom+o,n<0&&t.top-g0&&t.right>e.right+m&&(m=t.right-e.right+m+r)):t.right>e.right&&(m=t.right-e.right+r,n<0&&t.left0))break;n=n.childNodes[i-1],i=y(n)}if(n>=0)for(let i=e,s=t;;){if(3==i.nodeType)return{node:i,offset:s};if(!(1==i.nodeType&&s=0))break;i=i.childNodes[s],s=0}return null}let pt=class{constructor(){this.changes=[]}compareRange(e,t){me(e,t,this.changes)}comparePoint(e,t){me(e,t,this.changes)}};function mt(e,t){return t.left>e?t.left-e:Math.max(0,e-t.right)}function gt(e,t){return t.top>e?t.top-e:Math.max(0,e-t.bottom)}function bt(e,t){return e.topt.top+1}function yt(e,t){return te.bottom?{top:e.top,left:e.left,right:e.right,bottom:t}:e}function xt(e,t,n){let i,s,r,o,a,l,h,c,u=!1;for(let f=e.firstChild;f;f=f.nextSibling){let e=p(f);for(let d=0;dg||o==g&&r>m){i=f,s=p,r=m,o=g;let a=g?n0?d0)}0==m?n>p.bottom&&(!h||h.bottomp.top)&&(l=f,c=p):h&&bt(h,p)?h=vt(h,p.bottom):c&&bt(c,p)&&(c=yt(c,p.top))}}if(h&&h.bottom>=n?(i=a,s=h):c&&c.top<=n&&(i=l,s=c),!i)return{node:e,offset:0};let f=Math.max(s.left,Math.min(s.right,t));return 3==i.nodeType?wt(i,f,n):u&&"false"!=i.contentEditable?xt(i,f,n):{node:e,offset:Array.prototype.indexOf.call(e.childNodes,i)+(t>=(s.left+s.right)/2?1:0)}}function wt(e,t,n){let i=e.nodeValue.length,s=-1,r=1e9,o=0;for(let a=0;an?h.top-n:n-h.bottom)-1;if(h.left-1<=t&&h.right+1>=t&&c=(h.left+h.right)/2,i=n;if((U.chrome||U.gecko)&&C(e,a).getBoundingClientRect().left==h.right&&(i=!n),c<=0)return{node:e,offset:a+(i?1:0)};s=a+(i?1:0),r=c}}}return{node:e,offset:s>-1?s:o>0?e.nodeValue.length:0}}function kt(e,t,n,i=-1){var s,r;let o,a=e.contentDOM.getBoundingClientRect(),l=a.top+e.viewState.paddingTop,{docHeight:h}=e.viewState,{x:c,y:u}=t,f=u-l;if(f<0)return 0;if(f>h)return e.state.doc.length;for(let t=e.viewState.heightOracle.textHeight/2,s=!1;o=e.elementAtHeight(f),o.type!=he.Text;)for(;f=i>0?o.bottom+t:o.top-t,!(f>=0&&f<=h);){if(s)return n?null:0;s=!0,i=-i}u=l+f;let d=o.from;if(de.viewport.to)return e.viewport.to==e.state.doc.length?e.state.doc.length:n?null:St(e,a,o,c,u);let p=e.dom.ownerDocument,m=e.root.elementFromPoint?e.root:p,g=m.elementFromPoint(c,u);g&&!e.contentDOM.contains(g)&&(g=null),g||(c=Math.max(a.left+1,Math.min(a.right-1,c)),g=m.elementFromPoint(c,u),g&&!e.contentDOM.contains(g)&&(g=null));let b,y=-1;if(g&&0!=(null===(s=e.docView.nearest(g))||void 0===s?void 0:s.isEditable))if(p.caretPositionFromPoint){let e=p.caretPositionFromPoint(c,u);e&&({offsetNode:b,offset:y}=e)}else if(p.caretRangeFromPoint){let t=p.caretRangeFromPoint(c,u);t&&(({startContainer:b,startOffset:y}=t),(!e.contentDOM.contains(b)||U.safari&&function(e,t,n){let i;if(3!=e.nodeType||t!=(i=e.nodeValue.length))return!1;for(let t=e.nextSibling;t;t=t.nextSibling)if(1!=t.nodeType||"BR"!=t.nodeName)return!1;return C(e,i-1,i).getBoundingClientRect().left>n}(b,y,c)||U.chrome&&function(e,t,n){if(0!=t)return!1;for(let t=e;;){let e=t.parentNode;if(!e||1!=e.nodeType||e.firstChild!=t)return!1;if(e.classList.contains("cm-line"))break;t=e}return n-(1==e.nodeType?e.getBoundingClientRect():C(e,0,Math.max(e.nodeValue.length,1)).getBoundingClientRect()).left>5}(b,y,c))&&(b=void 0))}if(!b||!e.docView.dom.contains(b)){let t=oe.find(e.docView,d);if(!t)return f>o.top+o.height/2?o.to:o.from;({node:b,offset:y}=xt(t.dom,c,u))}let v=e.docView.nearest(b);if(!v)return null;if(v.isWidget&&1==(null===(r=v.dom)||void 0===r?void 0:r.nodeType)){let e=v.dom.getBoundingClientRect();return t.y1.5*e.defaultLineHeight){let t=e.viewState.heightOracle.textHeight;o+=Math.floor((r-n.top-.5*(e.defaultLineHeight-t))/t)*e.viewState.heightOracle.lineLength}let a=e.state.sliceDoc(n.from,n.to);return n.from+(0,i.Gz)(a,o,e.state.tabSize)}function At(e,t){let n=e.lineBlockAt(t);if(Array.isArray(n.type))for(let e of n.type)if(e.to>t||e.to==t&&(e.to==n.to||e.type==he.Text))return e;return n}function Ct(e,t,n,s){let r=e.state.doc.lineAt(t.head),o=e.bidiSpans(r),a=e.textDirectionAt(r.from);for(let l=t,h=null;;){let t=ht(r,o,a,l,n),c=lt;if(!t){if(r.number==(n?e.state.doc.lines:1))return l;c="\n",r=e.state.doc.line(r.number+(n?1:-1)),o=e.bidiSpans(r),t=i.jT.cursor(n?r.from:r.to)}if(h){if(!h(c))return l}else{if(!s)return t;h=s(c)}l=t}}function Ot(e,t,n){for(;;){let i=0;for(let s of e)s.between(t-1,t+1,((e,s,r)=>{if(t>e&&tt(e))),n.from,t.head>n.from?-1:1);return s==n.from?n:i.jT.cursor(s,snull)),U.gecko&&function(e){tn.has(e)||(tn.add(e),e.addEventListener("copy",(()=>{})),e.addEventListener("cut",(()=>{})))}(e.contentDOM.ownerDocument)}handleEvent(e){(function(e,t){if(!t.bubbles)return!0;if(t.defaultPrevented)return!1;for(let n,i=t.target;i!=e.contentDOM;i=i.parentNode)if(!i||11==i.nodeType||(n=D.get(i))&&n.ignoreEvent(t))return!1;return!0})(this.view,e)&&!this.ignoreDuringComposition(e)&&("keydown"==e.type&&this.keydown(e)||this.runHandlers(e.type,e))}runHandlers(e,t){let n=this.handlers[e];if(n){for(let e of n.observers)e(this.view,t);for(let e of n.handlers){if(t.defaultPrevented)break;if(e(this.view,t)){t.preventDefault();break}}}}ensureHandlers(e){let t=Nt(e),n=this.handlers,i=this.view.contentDOM;for(let e in t)if("scroll"!=e){let s=!t[e].handlers.length,r=n[e];r&&s!=!r.handlers.length&&(i.removeEventListener(e,this.handleEvent),r=null),r||i.addEventListener(e,this.handleEvent,{passive:s})}for(let e in n)"scroll"==e||t[e]||i.removeEventListener(e,this.handleEvent);this.handlers=t}keydown(e){if(this.lastKeyCode=e.keyCode,this.lastKeyTime=Date.now(),9==e.keyCode&&Date.now()t.keyCode==e.keyCode)))&&!e.ctrlKey||Et.indexOf(e.key)>-1&&e.ctrlKey&&!e.shiftKey)?(229!=e.keyCode&&this.view.observer.forceFlush(),!1):(this.pendingIOSKey=t||e,setTimeout((()=>this.flushIOSKey()),250),!0)}flushIOSKey(){let e=this.pendingIOSKey;return!!e&&(this.pendingIOSKey=void 0,O(this.view.contentDOM,e.key,e.keyCode))}ignoreDuringComposition(e){return!!/^key/.test(e.type)&&(this.composing>0||!!(U.safari&&!U.ios&&this.compositionPendingKey&&Date.now()-this.compositionEndedAt<100)&&(this.compositionPendingKey=!1,!0))}startMouseSelection(e){this.mouseSelection&&this.mouseSelection.destroy(),this.mouseSelection=e}update(e){this.mouseSelection&&this.mouseSelection.update(e),this.draggedContent&&e.docChanged&&(this.draggedContent=this.draggedContent.map(e.changes)),e.transactions.length&&(this.lastKeyCode=this.lastSelectionTime=0)}destroy(){this.mouseSelection&&this.mouseSelection.destroy()}}function _t(e,t){return(n,i)=>{try{return t.call(e,i,n)}catch(e){Ne(n.state,e)}}}function Nt(e){let t=Object.create(null);function n(e){return t[e]||(t[e]={observers:[],handlers:[]})}for(let t of e){let e=t.spec;if(e&&e.domEventHandlers)for(let i in e.domEventHandlers){let s=e.domEventHandlers[i];s&&n(i).handlers.push(_t(t.value,s))}if(e&&e.domEventObservers)for(let i in e.domEventObservers){let s=e.domEventObservers[i];s&&n(i).observers.push(_t(t.value,s))}}for(let e in It)n(e).handlers.push(It[e]);for(let e in Bt)n(e).observers.push(Bt[e]);return t}const Dt=[{key:"Backspace",keyCode:8,inputType:"deleteContentBackward"},{key:"Enter",keyCode:13,inputType:"insertParagraph"},{key:"Enter",keyCode:13,inputType:"insertLineBreak"},{key:"Delete",keyCode:46,inputType:"deleteContentForward"}],Et="dthko",jt=[16,17,18,20,91,92,224,225];function Rt(e){return.7*Math.max(0,e)+8}class Pt{constructor(e,t,n,s){this.view=e,this.startEvent=t,this.style=n,this.mustSelect=s,this.scrollSpeed={x:0,y:0},this.scrolling=-1,this.lastEvent=t,this.scrollParent=function(e){let t=e.ownerDocument;for(let n=e.parentNode;n&&n!=t.body;)if(1==n.nodeType){if(n.scrollHeight>n.clientHeight||n.scrollWidth>n.clientWidth)return n;n=n.assignedSlot||n.parentNode}else{if(11!=n.nodeType)break;n=n.host}return null}(e.contentDOM),this.atoms=e.state.facet($e).map((t=>t(e)));let r=e.contentDOM.ownerDocument;r.addEventListener("mousemove",this.move=this.move.bind(this)),r.addEventListener("mouseup",this.up=this.up.bind(this)),this.extend=t.shiftKey,this.multiple=e.state.facet(i.yy.allowMultipleSelections)&&function(e,t){let n=e.state.facet(ve);return n.length?n[0](t):U.mac?t.metaKey:t.ctrlKey}(e,t),this.dragging=!(!function(e,t){let{main:n}=e.state.selection;if(n.empty)return!1;let i=u(e.root);if(!i||0==i.rangeCount)return!0;let s=i.getRangeAt(0).getClientRects();for(let e=0;e=t.clientX&&n.top<=t.clientY&&n.bottom>=t.clientY)return!0}return!1}(e,t)||1!=Kt(t))&&null}start(e){!1===this.dragging&&this.select(e)}move(e){var t,n,i;if(0==e.buttons)return this.destroy();if(this.dragging||null==this.dragging&&(n=this.startEvent,i=e,Math.max(Math.abs(n.clientX-i.clientX),Math.abs(n.clientY-i.clientY))<10))return;this.select(this.lastEvent=e);let s=0,r=0,o=(null===(t=this.scrollParent)||void 0===t?void 0:t.getBoundingClientRect())||{left:0,top:0,right:this.view.win.innerWidth,bottom:this.view.win.innerHeight},a=Ve(this.view);e.clientX-a.left<=o.left+6?s=-Rt(o.left-e.clientX):e.clientX+a.right>=o.right-6&&(s=Rt(e.clientX-o.right)),e.clientY-a.top<=o.top+6?r=-Rt(o.top-e.clientY):e.clientY+a.bottom>=o.bottom-6&&(r=Rt(e.clientY-o.bottom)),this.setScrollSpeed(s,r)}up(e){null==this.dragging&&this.select(this.lastEvent),this.dragging||e.preventDefault(),this.destroy()}destroy(){this.setScrollSpeed(0,0);let e=this.view.contentDOM.ownerDocument;e.removeEventListener("mousemove",this.move),e.removeEventListener("mouseup",this.up),this.view.inputState.mouseSelection=this.view.inputState.draggedContent=null}setScrollSpeed(e,t){this.scrollSpeed={x:e,y:t},e||t?this.scrolling<0&&(this.scrolling=setInterval((()=>this.scroll()),50)):this.scrolling>-1&&(clearInterval(this.scrolling),this.scrolling=-1)}scroll(){this.scrollParent?(this.scrollParent.scrollLeft+=this.scrollSpeed.x,this.scrollParent.scrollTop+=this.scrollSpeed.y):this.view.win.scrollBy(this.scrollSpeed.x,this.scrollSpeed.y),!1===this.dragging&&this.select(this.lastEvent)}skipAtoms(e){let t=null;for(let n=0;nthis.select(this.lastEvent)),20)}}const It=Object.create(null),Bt=Object.create(null),Lt=U.ie&&U.ie_version<15||U.ios&&U.webkit_version<604;function $t(e,t){let n,{state:s}=e,r=1,o=s.toText(t),a=o.lines==s.selection.ranges.length;if(null!=Xt&&s.selection.ranges.every((e=>e.empty))&&Xt==o.toString()){let e=-1;n=s.changeByRange((n=>{let l=s.doc.lineAt(n.from);if(l.from==e)return{range:n};e=l.from;let h=s.toText((a?o.line(r++).text:t)+s.lineBreak);return{changes:{from:l.from,insert:h},range:i.jT.cursor(n.from+h.length)}}))}else n=a?s.changeByRange((e=>{let t=o.line(r++);return{changes:{from:e.from,to:e.to,insert:t.text},range:i.jT.cursor(e.from+t.length)}})):s.replaceSelection(o);e.dispatch(n,{userEvent:"input.paste",scrollIntoView:!0})}function zt(e,t,n,s){if(1==s)return i.jT.cursor(t,n);if(2==s)return function(e,t,n=1){let s=e.charCategorizer(t),r=e.doc.lineAt(t),o=t-r.from;if(0==r.length)return i.jT.cursor(t);0==o?n=1:o==r.length&&(n=-1);let a=o,l=o;n<0?a=(0,i.cp)(r.text,o,!1):l=(0,i.cp)(r.text,o);let h=s(r.text.slice(a,l));for(;a>0;){let e=(0,i.cp)(r.text,a,!1);if(s(r.text.slice(e,a))!=h)break;a=e}for(;l{e.inputState.lastScrollTop=e.scrollDOM.scrollTop,e.inputState.lastScrollLeft=e.scrollDOM.scrollLeft},It.keydown=(e,t)=>(e.inputState.setSelectionOrigin("select"),27==t.keyCode&&(e.inputState.lastEscPress=Date.now()),!1),Bt.touchstart=(e,t)=>{e.inputState.lastTouchTime=Date.now(),e.inputState.setSelectionOrigin("select.pointer")},Bt.touchmove=e=>{e.inputState.setSelectionOrigin("select.pointer")},It.mousedown=(e,t)=>{if(e.observer.flush(),e.inputState.lastTouchTime>Date.now()-2e3)return!1;let n=null;for(let i of e.state.facet(we))if(n=i(e,t),n)break;if(n||0!=t.button||(n=function(e,t){let n=Wt(e,t),s=Kt(t),r=e.state.selection;return{update(e){e.docChanged&&(n.pos=e.changes.mapPos(n.pos),r=r.map(e.changes))},get(t,o,a){let l,h=Wt(e,t),c=zt(e,h.pos,h.bias,s);if(n.pos!=h.pos&&!o){let t=zt(e,n.pos,n.bias,s),r=Math.min(t.from,c.from),o=Math.max(t.to,c.to);c=r1&&(l=function(e,t){for(let n=0;n=t)return i.jT.create(e.ranges.slice(0,n).concat(e.ranges.slice(n+1)),e.mainIndex==n?0:e.mainIndex-(e.mainIndex>n?1:0))}return null}(r,h.pos))?l:a?r.addRange(c):i.jT.create([c])}}}(e,t)),n){let i=!e.hasFocus;e.inputState.startMouseSelection(new Pt(e,t,n,i)),i&&e.observer.ignore((()=>A(e.contentDOM)));let s=e.inputState.mouseSelection;if(s)return s.start(t),!1===s.dragging}return!1};let Ft=(e,t)=>e>=t.top&&e<=t.bottom,Ht=(e,t,n)=>Ft(t,n)&&e>=n.left&&e<=n.right;function Vt(e,t,n,i){let s=oe.find(e.docView,t);if(!s)return 1;let r=t-s.posAtStart;if(0==r)return 1;if(r==s.length)return-1;let o=s.coordsAt(r,-1);if(o&&Ht(n,i,o))return-1;let a=s.coordsAt(r,1);return a&&Ht(n,i,a)?1:o&&Ft(i,o)?-1:1}function Wt(e,t){let n=e.posAtCoords({x:t.clientX,y:t.clientY},!1);return{pos:n,bias:Vt(e,n,t.clientX,t.clientY)}}const qt=U.ie&&U.ie_version<=11;let Jt=null,Ut=0,Gt=0;function Kt(e){if(!qt)return e.detail;let t=Jt,n=Gt;return Jt=e,Gt=Date.now(),Ut=!t||n>Date.now()-400&&Math.abs(t.clientX-e.clientX)<2&&Math.abs(t.clientY-e.clientY)<2?(Ut+1)%3:1}function Yt(e,t,n,i){if(!n)return;let s=e.posAtCoords({x:t.clientX,y:t.clientY},!1),{draggedContent:r}=e.inputState,o=i&&r&&function(e,t){let n=e.state.facet(xe);return n.length?n[0](t):U.mac?!t.altKey:!t.ctrlKey}(e,t)?{from:r.from,to:r.to}:null,a={from:s,insert:n},l=e.state.changes(o?[o,a]:a);e.focus(),e.dispatch({changes:l,selection:{anchor:l.mapPos(s,-1),head:l.mapPos(s,1)},userEvent:o?"move.drop":"input.drop"}),e.inputState.draggedContent=null}It.dragstart=(e,t)=>{let{selection:{main:n}}=e.state;if(t.target.draggable){let s=e.docView.nearest(t.target);if(s&&s.isWidget){let e=s.posAtStart,t=e+s.length;(e>=n.to||t<=n.from)&&(n=i.jT.range(e,t))}}let{inputState:s}=e;return s.mouseSelection&&(s.mouseSelection.dragging=!0),s.draggedContent=n,t.dataTransfer&&(t.dataTransfer.setData("Text",e.state.sliceDoc(n.from,n.to)),t.dataTransfer.effectAllowed="copyMove"),!1},It.dragend=e=>(e.inputState.draggedContent=null,!1),It.drop=(e,t)=>{if(!t.dataTransfer)return!1;if(e.state.readOnly)return!0;let n=t.dataTransfer.files;if(n&&n.length){let i=Array(n.length),s=0,r=()=>{++s==n.length&&Yt(e,t,i.filter((e=>null!=e)).join(e.state.lineBreak),!1)};for(let e=0;e{/[\x00-\x08\x0e-\x1f]{2}/.test(t.result)||(i[e]=t.result),r()},t.readAsText(n[e])}return!0}{let n=t.dataTransfer.getData("Text");if(n)return Yt(e,t,n,!0),!0}return!1},It.paste=(e,t)=>{if(e.state.readOnly)return!0;e.observer.flush();let n=Lt?null:t.clipboardData;return n?($t(e,n.getData("text/plain")||n.getData("text/uri-text")),!0):(function(e){let t=e.dom.parentNode;if(!t)return;let n=t.appendChild(document.createElement("textarea"));n.style.cssText="position: fixed; left: -10000px; top: 10px",n.focus(),setTimeout((()=>{e.focus(),n.remove(),$t(e,n.value)}),50)}(e),!1)};let Xt=null;It.copy=It.cut=(e,t)=>{let{text:n,ranges:i,linewise:s}=function(e){let t=[],n=[],i=!1;for(let i of e.selection.ranges)i.empty||(t.push(e.sliceDoc(i.from,i.to)),n.push(i));if(!t.length){let s=-1;for(let{from:i}of e.selection.ranges){let r=e.doc.lineAt(i);r.number>s&&(t.push(r.text),n.push({from:r.from,to:Math.min(e.doc.length,r.to+1)})),s=r.number}i=!0}return{text:t.join(e.lineBreak),ranges:n,linewise:i}}(e.state);if(!n&&!s)return!1;Xt=s?n:null,"cut"!=t.type||e.state.readOnly||e.dispatch({changes:i,scrollIntoView:!0,userEvent:"delete.cut"});let r=Lt?null:t.clipboardData;return r?(r.clearData(),r.setData("text/plain",n),!0):(function(e,t){let n=e.dom.parentNode;if(!n)return;let i=n.appendChild(document.createElement("textarea"));i.style.cssText="position: fixed; left: -10000px; top: 10px",i.value=t,i.focus(),i.selectionEnd=t.length,i.selectionStart=0,setTimeout((()=>{i.remove(),e.focus()}),50)}(e,n),!1)};const Qt=i.q6.define();function Zt(e,t){let n=[];for(let i of e.facet(Ce)){let s=i(e,t);s&&n.push(s)}return n?e.update({effects:n,annotations:Qt.of(!0)}):null}function en(e){setTimeout((()=>{let t=e.hasFocus;if(t!=e.inputState.notifiedFocused){let n=Zt(e.state,t);n?e.dispatch(n):e.update([])}}),10)}Bt.focus=e=>{e.inputState.lastFocusTime=Date.now(),e.scrollDOM.scrollTop||!e.inputState.lastScrollTop&&!e.inputState.lastScrollLeft||(e.scrollDOM.scrollTop=e.inputState.lastScrollTop,e.scrollDOM.scrollLeft=e.inputState.lastScrollLeft),en(e)},Bt.blur=e=>{e.observer.clearSelectionRange(),en(e)},Bt.compositionstart=Bt.compositionupdate=e=>{null==e.inputState.compositionFirstChange&&(e.inputState.compositionFirstChange=!0),e.inputState.composing<0&&(e.inputState.composing=0)},Bt.compositionend=e=>{e.inputState.composing=-1,e.inputState.compositionEndedAt=Date.now(),e.inputState.compositionPendingKey=!0,e.inputState.compositionPendingChange=e.observer.pendingRecords().length>0,e.inputState.compositionFirstChange=null,U.chrome&&U.android?e.observer.flushSoon():e.inputState.compositionPendingChange?Promise.resolve().then((()=>e.observer.flush())):setTimeout((()=>{e.inputState.composing<0&&e.docView.hasComposition&&e.update([])}),50)},Bt.contextmenu=e=>{e.inputState.lastContextMenu=Date.now()},It.beforeinput=(e,t)=>{var n;let i;if(U.chrome&&U.android&&(i=Dt.find((e=>e.inputType==t.inputType)))&&(e.observer.delayAndroidKey(i.key,i.keyCode),"Backspace"==i.key||"Delete"==i.key)){let t=(null===(n=window.visualViewport)||void 0===n?void 0:n.height)||0;setTimeout((()=>{var n;((null===(n=window.visualViewport)||void 0===n?void 0:n.height)||0)>t+10&&e.hasFocus&&(e.contentDOM.blur(),e.focus())}),100)}return!1};const tn=new Set,nn=["pre-wrap","normal","pre-line","break-spaces"];class sn{constructor(e){this.lineWrapping=e,this.doc=i.xv.empty,this.heightSamples={},this.lineHeight=14,this.charWidth=7,this.textHeight=14,this.lineLength=30,this.heightChanged=!1}heightForGap(e,t){let n=this.doc.lineAt(t).number-this.doc.lineAt(e).number+1;return this.lineWrapping&&(n+=Math.max(0,Math.ceil((t-e-n*this.lineLength*.5)/this.lineLength))),this.lineHeight*n}heightForLine(e){return this.lineWrapping?(1+Math.max(0,Math.ceil((e-this.lineLength)/(this.lineLength-5))))*this.lineHeight:this.lineHeight}setDoc(e){return this.doc=e,this}mustRefreshForWrapping(e){return nn.indexOf(e)>-1!=this.lineWrapping}mustRefreshForHeights(e){let t=!1;for(let n=0;n-1,a=Math.round(t)!=Math.round(this.lineHeight)||this.lineWrapping!=o;if(this.lineWrapping=o,this.lineHeight=t,this.charWidth=n,this.textHeight=i,this.lineLength=s,a){this.heightSamples={};for(let e=0;e0}set outdated(e){this.flags=(e?2:0)|-3&this.flags}setHeight(e,t){this.height!=t&&(Math.abs(this.height-t)>ln&&(e.heightChanged=!0),this.height=t)}replace(e,t,n){return hn.of(n)}decomposeLeft(e,t){t.push(this)}decomposeRight(e,t){t.push(this)}applyChanges(e,t,n,i){let s=this,r=n.doc;for(let o=i.length-1;o>=0;o--){let{fromA:a,toA:l,fromB:h,toB:c}=i[o],u=s.lineAt(a,an.ByPosNoHeight,n.setDoc(t),0,0),f=u.to>=l?u:s.lineAt(l,an.ByPosNoHeight,n,0,0);for(c+=f.to-l,l=f.to;o>0&&u.from<=i[o-1].toA;)a=i[o-1].fromA,h=i[o-1].fromB,o--,a2*s){let s=e[t-1];s.break?e.splice(--t,1,s.left,null,s.right):e.splice(--t,1,s.left,s.right),n+=1+s.break,i-=s.size}else{if(!(s>2*i))break;{let t=e[n];t.break?e.splice(n,1,t.left,null,t.right):e.splice(n,1,t.left,t.right),n+=2+t.break,s-=t.size}}else if(i=s&&r(this.blockAt(0,n,i,s))}updateHeight(e,t=0,n=!1,i){return i&&i.from<=t&&i.more&&this.setHeight(e,i.heights[i.index++]),this.outdated=!1,this}toString(){return`block(${this.length})`}}class un extends cn{constructor(e,t){super(e,t,null),this.collapsed=0,this.widgetHeight=0,this.breaks=0}blockAt(e,t,n,i){return new on(i,this.length,n,this.height,this.breaks)}replace(e,t,n){let i=n[0];return 1==n.length&&(i instanceof un||i instanceof fn&&4&i.flags)&&Math.abs(this.length-i.length)<10?(i instanceof fn?i=new un(i.length,this.height):i.height=this.height,this.outdated||(i.outdated=!1),i):hn.of(n)}updateHeight(e,t=0,n=!1,i){return i&&i.from<=t&&i.more?this.setHeight(e,i.heights[i.index++]):(n||this.outdated)&&this.setHeight(e,Math.max(this.widgetHeight,e.heightForLine(this.length-this.collapsed))+this.breaks*e.lineHeight),this.outdated=!1,this}toString(){return`line(${this.length}${this.collapsed?-this.collapsed:""}${this.widgetHeight?":"+this.widgetHeight:""})`}}class fn extends hn{constructor(e){super(e,0)}heightMetrics(e,t){let n,i=e.doc.lineAt(t).number,s=e.doc.lineAt(t+this.length).number,r=s-i+1,o=0;if(e.lineWrapping){let t=Math.min(this.height,e.lineHeight*r);n=t/r,this.length>r+1&&(o=(this.height-t)/(this.length-r-1))}else n=this.height/r;return{firstLine:i,lastLine:s,perLine:n,perChar:o}}blockAt(e,t,n,i){let{firstLine:s,lastLine:r,perLine:o,perChar:a}=this.heightMetrics(t,i);if(t.lineWrapping){let s=i+Math.round(Math.max(0,Math.min(1,(e-n)/this.height))*this.length),r=t.doc.lineAt(s),l=o+r.length*a,h=Math.max(n,e-l/2);return new on(r.from,r.length,h,l,0)}{let i=Math.max(0,Math.min(r-s,Math.floor((e-n)/o))),{from:a,length:l}=t.doc.line(s+i);return new on(a,l,n+o*i,o,0)}}lineAt(e,t,n,i,s){if(t==an.ByHeight)return this.blockAt(e,n,i,s);if(t==an.ByPosNoHeight){let{from:t,to:i}=n.doc.lineAt(e);return new on(t,i-t,0,0,0)}let{firstLine:r,perLine:o,perChar:a}=this.heightMetrics(n,s),l=n.doc.lineAt(e),h=o+l.length*a,c=l.number-r,u=i+o*c+a*(l.from-s-c);return new on(l.from,l.length,Math.max(i,Math.min(u,i+this.height-h)),h,0)}forEachLine(e,t,n,i,s,r){e=Math.max(e,s),t=Math.min(t,s+this.length);let{firstLine:o,perLine:a,perChar:l}=this.heightMetrics(n,s);for(let h=e,c=i;h<=t;){let t=n.doc.lineAt(h);if(h==e){let n=t.number-o;c+=a*n+l*(e-s-n)}let i=a+l*t.length;r(new on(t.from,t.length,c,i,0)),c+=i,h=t.to+1}}replace(e,t,n){let i=this.length-t;if(i>0){let e=n[n.length-1];e instanceof fn?n[n.length-1]=new fn(e.length+i):n.push(null,new fn(i-1))}if(e>0){let t=n[0];t instanceof fn?n[0]=new fn(e+t.length):n.unshift(new fn(e-1),null)}return hn.of(n)}decomposeLeft(e,t){t.push(new fn(e-1),null)}decomposeRight(e,t){t.push(null,new fn(this.length-e-1))}updateHeight(e,t=0,n=!1,i){let s=t+this.length;if(i&&i.from<=t+this.length&&i.more){let n=[],r=Math.max(t,i.from),o=-1;for(i.from>t&&n.push(new fn(i.from-t-1).updateHeight(e,t));r<=s&&i.more;){let t=e.doc.lineAt(r).length;n.length&&n.push(null);let s=i.heights[i.index++];-1==o?o=s:Math.abs(s-o)>=ln&&(o=-2);let a=new un(t,s);a.outdated=!1,n.push(a),r+=t+1}r<=s&&n.push(null,new fn(s-r).updateHeight(e,r));let a=hn.of(n);return(o<0||Math.abs(a.height-this.height)>=ln||Math.abs(o-this.heightMetrics(e,t).perLine)>=ln)&&(e.heightChanged=!0),a}return(n||this.outdated)&&(this.setHeight(e,e.heightForGap(t,t+this.length)),this.outdated=!1),this}toString(){return`gap(${this.length})`}}class dn extends hn{constructor(e,t,n){super(e.length+t+n.length,e.height+n.height,t|(e.outdated||n.outdated?2:0)),this.left=e,this.right=n,this.size=e.size+n.size}get break(){return 1&this.flags}blockAt(e,t,n,i){let s=n+this.left.height;return eo))return l;let h=t==an.ByPosNoHeight?an.ByPosNoHeight:an.ByPos;return a?l.join(this.right.lineAt(o,h,n,r,o)):this.left.lineAt(o,h,n,i,s).join(l)}forEachLine(e,t,n,i,s,r){let o=i+this.left.height,a=s+this.left.length+this.break;if(this.break)e=a&&this.right.forEachLine(e,t,n,o,a,r);else{let l=this.lineAt(a,an.ByPos,n,i,s);e=e&&l.from<=t&&r(l),t>l.to&&this.right.forEachLine(l.to+1,t,n,o,a,r)}}replace(e,t,n){let i=this.left.length+this.break;if(tthis.left.length)return this.balanced(this.left,this.right.replace(e-i,t-i,n));let s=[];e>0&&this.decomposeLeft(e,s);let r=s.length;for(let e of n)s.push(e);if(e>0&&pn(s,r-1),t=n&&t.push(null)),e>n&&this.right.decomposeLeft(e-n,t)}decomposeRight(e,t){let n=this.left.length,i=n+this.break;if(e>=i)return this.right.decomposeRight(e-i,t);e2*t.size||t.size>2*e.size?hn.of(this.break?[e,null,t]:[e,t]):(this.left=e,this.right=t,this.height=e.height+t.height,this.outdated=e.outdated||t.outdated,this.size=e.size+t.size,this.length=e.length+this.break+t.length,this)}updateHeight(e,t=0,n=!1,i){let{left:s,right:r}=this,o=t+s.length+this.break,a=null;return i&&i.from<=t+s.length&&i.more?a=s=s.updateHeight(e,t,n,i):s.updateHeight(e,t,n),i&&i.from<=o+r.length&&i.more?a=r=r.updateHeight(e,o,n,i):r.updateHeight(e,o,n),a?this.balanced(s,r):(this.height=this.left.height+this.right.height,this.outdated=!1,this)}toString(){return this.left+(this.break?" ":"-")+this.right}}function pn(e,t){let n,i;null==e[t]&&(n=e[t-1])instanceof fn&&(i=e[t+1])instanceof fn&&e.splice(t-1,3,new fn(n.length+1+i.length))}class mn{constructor(e,t){this.pos=e,this.oracle=t,this.nodes=[],this.lineStart=-1,this.lineEnd=-1,this.covering=null,this.writtenTo=e}get isCovered(){return this.covering&&this.nodes[this.nodes.length-1]==this.covering}span(e,t){if(this.lineStart>-1){let e=Math.min(t,this.lineEnd),n=this.nodes[this.nodes.length-1];n instanceof un?n.length+=e-this.pos:(e>this.pos||!this.isCovered)&&this.nodes.push(new un(e-this.pos,-1)),this.writtenTo=e,t>e&&(this.nodes.push(null),this.writtenTo++,this.lineStart=-1)}this.pos=t}point(e,t,n){if(e=5)&&this.addLineDeco(i,s,r)}else t>e&&this.span(e,t);this.lineEnd>-1&&this.lineEnd-1)return;let{from:e,to:t}=this.oracle.doc.lineAt(this.pos);this.lineStart=e,this.lineEnd=t,this.writtenToe&&this.nodes.push(new un(this.pos-e,-1)),this.writtenTo=this.pos}blankContent(e,t){let n=new fn(t-e);return this.oracle.doc.lineAt(e).to==t&&(n.flags|=4),n}ensureLine(){this.enterLine();let e=this.nodes.length?this.nodes[this.nodes.length-1]:null;if(e instanceof un)return e;let t=new un(0,-1);return this.nodes.push(t),t}addBlock(e){this.enterLine();let t=e.deco;t&&t.startSide>0&&!this.isCovered&&this.ensureLine(),this.nodes.push(e),this.writtenTo=this.pos=this.pos+e.length,t&&t.endSide>0&&(this.covering=e)}addLineDeco(e,t,n){let i=this.ensureLine();i.length+=n,i.collapsed+=n,i.widgetHeight=Math.max(i.widgetHeight,e),i.breaks+=t,this.writtenTo=this.pos=this.pos+n}finish(e){let t=0==this.nodes.length?null:this.nodes[this.nodes.length-1];!(this.lineStart>-1)||t instanceof un||this.isCovered?(this.writtenTon.clientHeight||n.scrollWidth>n.clientWidth)&&"visible"!=i.overflow){let i=n.getBoundingClientRect();r=Math.max(r,i.left),o=Math.min(o,i.right),a=Math.max(a,i.top),l=t==e.parentNode?i.bottom:Math.min(l,i.bottom)}t="absolute"==i.position||"fixed"==i.position?n.offsetParent:n.parentNode}else{if(11!=t.nodeType)break;t=t.host}return{left:r-n.left,right:Math.max(r,o)-n.left,top:a-(n.top+t),bottom:Math.max(a,l)-(n.top+t)}}function yn(e,t){let n=e.getBoundingClientRect();return{left:0,right:n.right-n.left,top:t,bottom:n.bottom-(n.top+t)}}class vn{constructor(e,t,n){this.from=e,this.to=t,this.size=n}static same(e,t){if(e.length!=t.length)return!1;for(let n=0;n"function"!=typeof e&&"cm-lineWrapping"==e.class));this.heightOracle=new sn(t),this.stateDeco=e.facet(Le).filter((e=>"function"!=typeof e)),this.heightMap=hn.empty().applyChanges(this.stateDeco,i.xv.empty,this.heightOracle.setDoc(e.doc),[new qe(0,0,0,e.doc.length)]),this.viewport=this.getViewport(0,null),this.updateViewportLines(),this.updateForViewport(),this.lineGaps=this.ensureLineGaps([]),this.lineGapDeco=ce.set(this.lineGaps.map((e=>e.draw(this,!1)))),this.computeVisibleRanges()}updateForViewport(){let e=[this.viewport],{main:t}=this.state.selection;for(let n=0;n<=1;n++){let i=n?t.head:t.anchor;if(!e.some((({from:e,to:t})=>i>=e&&i<=t))){let{from:t,to:n}=this.lineBlockAt(i);e.push(new kn(t,n))}}this.viewports=e.sort(((e,t)=>e.from-t.from)),this.scaler=this.heightMap.height<=7e6?On:new Mn(this.heightOracle,this.heightMap,this.viewports)}updateViewportLines(){this.viewportLines=[],this.heightMap.forEachLine(this.viewport.from,this.viewport.to,this.heightOracle.setDoc(this.state.doc),0,0,(e=>{this.viewportLines.push(1==this.scaler.scale?e:Tn(e,this.scaler))}))}update(e,t=null){this.state=e.state;let n=this.stateDeco;this.stateDeco=this.state.facet(Le).filter((e=>"function"!=typeof e));let s=e.changedRanges,r=qe.extendWithRanges(s,function(e,t,n){let s=new gn;return i.Xs.compare(e,t,n,s,0),s.changes}(n,this.stateDeco,e?e.changes:i.as.empty(this.state.doc.length))),o=this.heightMap.height,a=this.scrolledToBottom?null:this.scrollAnchorAt(this.scrollTop);this.heightMap=this.heightMap.applyChanges(this.stateDeco,e.startState.doc,this.heightOracle.setDoc(this.state.doc),r),this.heightMap.height!=o&&(e.flags|=2),a?(this.scrollAnchorPos=e.changes.mapPos(a.from,-1),this.scrollAnchorHeight=a.top):(this.scrollAnchorPos=-1,this.scrollAnchorHeight=this.heightMap.height);let l=r.length?this.mapViewport(this.viewport,e.changes):this.viewport;(t&&(t.range.headl.to)||!this.viewportIsAppropriate(l))&&(l=this.getViewport(0,t));let h=!e.changes.empty||2&e.flags||l.from!=this.viewport.from||l.to!=this.viewport.to;this.viewport=l,this.updateForViewport(),h&&this.updateViewportLines(),(this.lineGaps.length||this.viewport.to-this.viewport.from>4e3)&&this.updateLineGaps(this.ensureLineGaps(this.mapLineGaps(this.lineGaps,e.changes))),e.flags|=this.computeVisibleRanges(),t&&(this.scrollTarget=t),!this.mustEnforceCursorAssoc&&e.selectionSet&&e.view.lineWrapping&&e.state.selection.main.empty&&e.state.selection.main.assoc&&!e.state.facet(Me)&&(this.mustEnforceCursorAssoc=!0)}measure(e){let t=e.contentDOM,n=window.getComputedStyle(t),s=this.heightOracle,r=n.whiteSpace;this.defaultTextDirection="rtl"==n.direction?Ue.RTL:Ue.LTR;let o=this.heightOracle.mustRefreshForWrapping(r),a=t.getBoundingClientRect(),l=o||this.mustMeasureContent||this.contentDOMHeight!=a.height;this.contentDOMHeight=a.height,this.mustMeasureContent=!1;let h=0,c=0;if(a.width&&a.height){let e=a.width/t.offsetWidth,n=a.height/t.offsetHeight;(e>.995&&e<1.005||!isFinite(e)||Math.abs(a.width-t.offsetWidth)<1)&&(e=1),(n>.995&&n<1.005||!isFinite(n)||Math.abs(a.height-t.offsetHeight)<1)&&(n=1),this.scaleX==e&&this.scaleY==n||(this.scaleX=e,this.scaleY=n,h|=8,o=l=!0)}let u=(parseInt(n.paddingTop)||0)*this.scaleY,f=(parseInt(n.paddingBottom)||0)*this.scaleY;this.paddingTop==u&&this.paddingBottom==f||(this.paddingTop=u,this.paddingBottom=f,h|=10),this.editorWidth!=e.scrollDOM.clientWidth&&(s.lineWrapping&&(l=!0),this.editorWidth=e.scrollDOM.clientWidth,h|=8);let d=e.scrollDOM.scrollTop*this.scaleY;this.scrollTop!=d&&(this.scrollAnchorHeight=-1,this.scrollTop=d),this.scrolledToBottom=T(e.scrollDOM);let p=(this.printing?yn:bn)(t,this.paddingTop),m=p.top-this.pixelViewport.top,g=p.bottom-this.pixelViewport.bottom;this.pixelViewport=p;let b=this.pixelViewport.bottom>this.pixelViewport.top&&this.pixelViewport.right>this.pixelViewport.left;if(b!=this.inView&&(this.inView=b,b&&(l=!0)),!this.inView&&!this.scrollTarget)return 0;let y=a.width;if(this.contentDOMWidth==y&&this.editorHeight==e.scrollDOM.clientHeight||(this.contentDOMWidth=a.width,this.editorHeight=e.scrollDOM.clientHeight,h|=8),l){let t=e.docView.measureVisibleLineHeights(this.viewport);if(s.mustRefreshForHeights(t)&&(o=!0),o||s.lineWrapping&&Math.abs(y-this.contentDOMWidth)>s.charWidth){let{lineHeight:n,charWidth:i,textHeight:a}=e.docView.measureTextSize();o=n>0&&s.refresh(r,n,i,a,y/i,t),o&&(e.docView.minWidth=0,h|=8)}m>0&&g>0?c=Math.max(m,g):m<0&&g<0&&(c=Math.min(m,g)),s.heightChanged=!1;for(let n of this.viewports){let r=n.from==this.viewport.from?t:e.docView.measureVisibleLineHeights(n);this.heightMap=(o?hn.empty().applyChanges(this.stateDeco,i.xv.empty,this.heightOracle,[new qe(0,0,0,e.state.doc.length)]):this.heightMap).updateHeight(s,0,o,new rn(n.from,r))}s.heightChanged&&(h|=2)}let v=!this.viewportIsAppropriate(this.viewport,c)||this.scrollTarget&&(this.scrollTarget.range.headthis.viewport.to);return v&&(this.viewport=this.getViewport(c,this.scrollTarget)),this.updateForViewport(),(2&h||v)&&this.updateViewportLines(),(this.lineGaps.length||this.viewport.to-this.viewport.from>4e3)&&this.updateLineGaps(this.ensureLineGaps(o?[]:this.lineGaps,e)),h|=this.computeVisibleRanges(),this.mustEnforceCursorAssoc&&(this.mustEnforceCursorAssoc=!1,e.docView.enforceCursorAssoc()),h}get visibleTop(){return this.scaler.fromDOM(this.pixelViewport.top)}get visibleBottom(){return this.scaler.fromDOM(this.pixelViewport.bottom)}getViewport(e,t){let n=.5-Math.max(-.5,Math.min(.5,e/1e3/2)),i=this.heightMap,s=this.heightOracle,{visibleTop:r,visibleBottom:o}=this,a=new kn(i.lineAt(r-1e3*n,an.ByHeight,s,0,0).from,i.lineAt(o+1e3*(1-n),an.ByHeight,s,0,0).to);if(t){let{head:e}=t.range;if(ea.to){let n,r=Math.min(this.editorHeight,this.pixelViewport.bottom-this.pixelViewport.top),o=i.lineAt(e,an.ByPos,s,0,0);n="center"==t.y?(o.top+o.bottom)/2-r/2:"start"==t.y||"nearest"==t.y&&e=o+Math.max(10,Math.min(n,250)))&&i>r-2e3&&s>1,o=s<<1;if(this.defaultTextDirection!=Ue.LTR&&!n)return[];let a=[],l=(s,o,h,c)=>{if(o-ss&&ee.from>=h.from&&e.to<=h.to&&Math.abs(e.from-s)e.fromt))));if(!d){if(oe.from<=o&&e.to>=o))){let e=t.moveToLineBoundary(i.jT.cursor(o),!1,!0).head;e>s&&(o=e)}d=new vn(s,o,this.gapSize(h,s,o,c))}a.push(d)};for(let e of this.viewportLines){if(e.lengthe.from&&l(e.from,i,e,t),re.draw(this,this.heightOracle.lineWrapping)))))}computeVisibleRanges(){let e=this.stateDeco;this.lineGaps.length&&(e=e.concat(this.lineGapDeco));let t=[];i.Xs.spans(e,this.viewport.from,this.viewport.to,{span(e,n){t.push({from:e,to:n})},point(){}},20);let n=t.length!=this.visibleRanges.length||this.visibleRanges.some(((e,n)=>e.from!=t[n].from||e.to!=t[n].to));return this.visibleRanges=t,n?4:0}lineBlockAt(e){return e>=this.viewport.from&&e<=this.viewport.to&&this.viewportLines.find((t=>t.from<=e&&t.to>=e))||Tn(this.heightMap.lineAt(e,an.ByPos,this.heightOracle,0,0),this.scaler)}lineBlockAtHeight(e){return Tn(this.heightMap.lineAt(this.scaler.fromDOM(e),an.ByHeight,this.heightOracle,0,0),this.scaler)}scrollAnchorAt(e){let t=this.lineBlockAtHeight(e+8);return t.from>=this.viewport.from||this.viewportLines[0].top-e>200?t:this.viewportLines[0]}elementAtHeight(e){return Tn(this.heightMap.blockAt(this.scaler.fromDOM(e),this.heightOracle,0,0),this.scaler)}get docHeight(){return this.scaler.toDOM(this.heightMap.height)}get contentHeight(){return this.docHeight+this.paddingTop+this.paddingBottom}}class kn{constructor(e,t){this.from=e,this.to=t}}function Sn(e,t,n){let s=[],r=e,o=0;return i.Xs.spans(n,e,t,{span(){},point(e,t){e>r&&(s.push({from:r,to:e}),o+=e-r),r=t}},20),r=1)return t[t.length-1].to;let i=Math.floor(e*n);for(let e=0;;e++){let{from:n,to:s}=t[e],r=s-n;if(i<=r)return n+i;i-=r}}function Cn(e,t){let n=0;for(let{from:i,to:s}of e.ranges){if(t<=s){n+=t-i;break}n+=s-i}return n/e.total}const On={toDOM:e=>e,fromDOM:e=>e,scale:1};class Mn{constructor(e,t,n){let i=0,s=0,r=0;this.viewports=n.map((({from:n,to:s})=>{let r=t.lineAt(n,an.ByPos,e,0,0).top,o=t.lineAt(s,an.ByPos,e,0,0).bottom;return i+=o-r,{from:n,to:s,top:r,bottom:o,domTop:0,domBottom:0}})),this.scale=(7e6-i)/(t.height-i);for(let e of this.viewports)e.domTop=r+(e.top-s)*this.scale,r=e.domBottom=e.domTop+(e.bottom-e.top),s=e.bottom}toDOM(e){for(let t=0,n=0,i=0;;t++){let s=tTn(e,t))):e._content)}const _n=i.r$.define({combine:e=>e.join(" ")}),Nn=i.r$.define({combine:e=>e.indexOf(!0)>-1}),Dn=s.V.newName(),En=s.V.newName(),jn=s.V.newName(),Rn={"&light":"."+En,"&dark":"."+jn};function Pn(e,t,n){return new s.V(t,{finish:t=>/&/.test(t)?t.replace(/&\w*/,(t=>{if("&"==t)return e;if(!n||!n[t])throw new RangeError(`Unsupported selector: ${t}`);return n[t]})):e+" "+t})}const In=Pn("."+Dn,{"&":{position:"relative !important",boxSizing:"border-box","&.cm-focused":{outline:"1px dotted #212121"},display:"flex !important",flexDirection:"column"},".cm-scroller":{display:"flex !important",alignItems:"flex-start !important",fontFamily:"monospace",lineHeight:1.4,height:"100%",overflowX:"auto",position:"relative",zIndex:0},".cm-content":{margin:0,flexGrow:2,flexShrink:0,display:"block",whiteSpace:"pre",wordWrap:"normal",boxSizing:"border-box",minHeight:"100%",padding:"4px 0",outline:"none","&[contenteditable=true]":{WebkitUserModify:"read-write-plaintext-only"}},".cm-lineWrapping":{whiteSpace_fallback:"pre-wrap",whiteSpace:"break-spaces",wordBreak:"break-word",overflowWrap:"anywhere",flexShrink:1},"&light .cm-content":{caretColor:"black"},"&dark .cm-content":{caretColor:"white"},".cm-line":{display:"block",padding:"0 2px 0 6px"},".cm-layer":{position:"absolute",left:0,top:0,contain:"size style","& > *":{position:"absolute"}},"&light .cm-selectionBackground":{background:"#d9d9d9"},"&dark .cm-selectionBackground":{background:"#222"},"&light.cm-focused > .cm-scroller > .cm-selectionLayer .cm-selectionBackground":{background:"#d7d4f0"},"&dark.cm-focused > .cm-scroller > .cm-selectionLayer .cm-selectionBackground":{background:"#233"},".cm-cursorLayer":{pointerEvents:"none"},"&.cm-focused > .cm-scroller > .cm-cursorLayer":{animation:"steps(1) cm-blink 1.2s infinite"},"@keyframes cm-blink":{"0%":{},"50%":{opacity:0},"100%":{}},"@keyframes cm-blink2":{"0%":{},"50%":{opacity:0},"100%":{}},".cm-cursor, .cm-dropCursor":{borderLeft:"1.2px solid black",marginLeft:"-0.6px",pointerEvents:"none"},".cm-cursor":{display:"none"},"&dark .cm-cursor":{borderLeftColor:"#444"},".cm-dropCursor":{position:"absolute"},"&.cm-focused > .cm-scroller > .cm-cursorLayer .cm-cursor":{display:"block"},"&light .cm-activeLine":{backgroundColor:"#cceeff44"},"&dark .cm-activeLine":{backgroundColor:"#99eeff33"},"&light .cm-specialChar":{color:"red"},"&dark .cm-specialChar":{color:"#f78"},".cm-gutters":{flexShrink:0,display:"flex",height:"100%",boxSizing:"border-box",insetInlineStart:0,zIndex:200},"&light .cm-gutters":{backgroundColor:"#f5f5f5",color:"#6c6c6c",borderRight:"1px solid #ddd"},"&dark .cm-gutters":{backgroundColor:"#333338",color:"#ccc"},".cm-gutter":{display:"flex !important",flexDirection:"column",flexShrink:0,boxSizing:"border-box",minHeight:"100%",overflow:"hidden"},".cm-gutterElement":{boxSizing:"border-box"},".cm-lineNumbers .cm-gutterElement":{padding:"0 3px 0 5px",minWidth:"20px",textAlign:"right",whiteSpace:"nowrap"},"&light .cm-activeLineGutter":{backgroundColor:"#e2f2ff"},"&dark .cm-activeLineGutter":{backgroundColor:"#222227"},".cm-panels":{boxSizing:"border-box",position:"sticky",left:0,right:0},"&light .cm-panels":{backgroundColor:"#f5f5f5",color:"black"},"&light .cm-panels-top":{borderBottom:"1px solid #ddd"},"&light .cm-panels-bottom":{borderTop:"1px solid #ddd"},"&dark .cm-panels":{backgroundColor:"#333338",color:"white"},".cm-tab":{display:"inline-block",overflow:"hidden",verticalAlign:"bottom"},".cm-widgetBuffer":{verticalAlign:"text-top",height:"1em",width:0,display:"inline"},".cm-placeholder":{color:"#888",display:"inline-block",verticalAlign:"top"},".cm-highlightSpace:before":{content:"attr(data-display)",position:"absolute",pointerEvents:"none",color:"#888"},".cm-highlightTab":{backgroundImage:'url(\'data:image/svg+xml,\')',backgroundSize:"auto 100%",backgroundPosition:"right 90%",backgroundRepeat:"no-repeat"},".cm-trailingSpace":{backgroundColor:"#ff332255"},".cm-button":{verticalAlign:"middle",color:"inherit",fontSize:"70%",padding:".2em 1em",borderRadius:"1px"},"&light .cm-button":{backgroundImage:"linear-gradient(#eff1f5, #d9d9df)",border:"1px solid #888","&:active":{backgroundImage:"linear-gradient(#b4b4b4, #d0d3d6)"}},"&dark .cm-button":{backgroundImage:"linear-gradient(#393939, #111)",border:"1px solid #888","&:active":{backgroundImage:"linear-gradient(#111, #333)"}},".cm-textfield":{verticalAlign:"middle",color:"inherit",fontSize:"70%",border:"1px solid silver",padding:".2em .5em"},"&light .cm-textfield":{backgroundColor:"white"},"&dark .cm-textfield":{border:"1px solid #555",backgroundColor:"inherit"}},Rn),Bn="￿";class Ln{constructor(e,t){this.points=e,this.text="",this.lineSeparator=t.facet(i.yy.lineSeparator)}append(e){this.text+=e}lineBreak(){this.text+=Bn}readRange(e,t){if(!e)return this;let n=e.parentNode;for(let i=e;;){this.findPointBefore(n,i);let e=this.text.length;this.readNode(i);let s=i.nextSibling;if(s==t)break;let r=D.get(i),o=D.get(s);(r&&o?r.breakAfter:(r?r.breakAfter:zn(i))||zn(s)&&("BR"!=i.nodeName||i.cmIgnore)&&this.text.length>e)&&this.lineBreak(),i=s}return this.findPointBefore(n,t),this}readTextNode(e){let t=e.nodeValue;for(let n of this.points)n.node==e&&(n.pos=this.text.length+Math.min(n.offset,t.length));for(let n=0,i=this.lineSeparator?null:/\r\n?|\n/g;;){let s,r=-1,o=1;if(this.lineSeparator?(r=t.indexOf(this.lineSeparator,n),o=this.lineSeparator.length):(s=i.exec(t))&&(r=s.index,o=s[0].length),this.append(t.slice(n,r<0?t.length:r)),r<0)break;if(this.lineBreak(),o>1)for(let t of this.points)t.node==e&&t.pos>this.text.length&&(t.pos-=o-1);n=r+o}}readNode(e){if(e.cmIgnore)return;let t=D.get(e),n=t&&t.overrideDOMText;if(null!=n){this.findPointInside(e,n.length);for(let e=n.iter();!e.next().done;)e.lineBreak?this.lineBreak():this.append(e.value)}else 3==e.nodeType?this.readTextNode(e):"BR"==e.nodeName?e.nextSibling&&this.lineBreak():1==e.nodeType&&this.readRange(e.firstChild,null)}findPointBefore(e,t){for(let n of this.points)n.node==e&&e.childNodes[n.offset]==t&&(n.pos=this.text.length)}findPointInside(e,t){for(let n of this.points)(3==e.nodeType?n.node==e:e.contains(n.node))&&(n.pos=this.text.length+($n(e,n.node,n.offset)?t:0))}}function $n(e,t,n){for(;;){if(!t||n-1)this.newSel=null;else if(t>-1&&(this.bounds=e.docView.domBoundsAround(t,n,0))){let t=r||o?[]:function(e){let t=[];if(e.root.activeElement!=e.contentDOM)return t;let{anchorNode:n,anchorOffset:i,focusNode:s,focusOffset:r}=e.observer.selectionRange;return n&&(t.push(new Fn(n,i)),s==n&&r==i||t.push(new Fn(s,r))),t}(e),n=new Ln(t,e.state);n.readRange(this.bounds.startDOM,this.bounds.endDOM),this.text=n.text,this.newSel=function(e,t){if(0==e.length)return null;let n=e[0].pos,s=2==e.length?e[1].pos:n;return n>-1&&s>-1?i.jT.single(n+t,s+t):null}(t,this.bounds.from)}else{let t=e.observer.selectionRange,n=r&&r.node==t.focusNode&&r.offset==t.focusOffset||!f(e.contentDOM,t.focusNode)?e.state.selection.main.head:e.docView.posFromDOM(t.focusNode,t.focusOffset),s=o&&o.node==t.anchorNode&&o.offset==t.anchorOffset||!f(e.contentDOM,t.anchorNode)?e.state.selection.main.anchor:e.docView.posFromDOM(t.anchorNode,t.anchorOffset);this.newSel=i.jT.single(s,n)}}}function Vn(e,t){let n,{newSel:s}=t,r=e.state.selection.main,o=e.inputState.lastKeyTime>Date.now()-100?e.inputState.lastKeyCode:-1;if(t.bounds){let{from:s,to:a}=t.bounds,l=r.from,h=null;(8===o||U.android&&t.text.length0&&a>0&&e.charCodeAt(o-1)==t.charCodeAt(a-1);)o--,a--;return"end"==i&&(n-=o+Math.max(0,r-Math.min(o,a))-r),o=o?r-n:0,a=r+(a-o),o=r):a=a?r-n:0,o=r+(o-a),a=r),{from:r,toA:o,toB:a}}(e.state.doc.sliceString(s,a,Bn),t.text,l-s,h);c&&(U.chrome&&13==o&&c.toB==c.from+2&&t.text.slice(c.from,c.toB)==Bn+Bn&&c.toB--,n={from:s+c.from,to:s+c.toA,insert:i.xv.of(t.text.slice(c.from,c.toB).split(Bn))})}else s&&(!e.hasFocus&&e.state.facet(De)||s.main.eq(r))&&(s=null);if(!n&&!s)return!1;if(!n&&t.typeOver&&!r.empty&&s&&s.main.empty?n={from:r.from,to:r.to,insert:e.state.doc.slice(r.from,r.to)}:n&&n.from>=r.from&&n.to<=r.to&&(n.from!=r.from||n.to!=r.to)&&r.to-r.from-(n.to-n.from)<=4?n={from:r.from,to:r.to,insert:e.state.doc.slice(r.from,n.from).append(n.insert).append(e.state.doc.slice(n.to,r.to))}:(U.mac||U.android)&&n&&n.from==n.to&&n.from==r.head-1&&/^\. ?$/.test(n.insert.toString())&&"off"==e.contentDOM.getAttribute("autocorrect")?(s&&2==n.insert.length&&(s=i.jT.single(s.main.anchor-1,s.main.head-1)),n={from:r.from,to:r.to,insert:i.xv.of([" "])}):U.chrome&&n&&n.from==n.to&&n.from==r.head&&"\n "==n.insert.toString()&&e.lineWrapping&&(s&&(s=i.jT.single(s.main.anchor-1,s.main.head-1)),n={from:r.from,to:r.to,insert:i.xv.of([" "])}),n){if(U.ios&&e.inputState.flushIOSKey())return!0;if(U.android&&(n.from==r.from&&n.to==r.to&&1==n.insert.length&&2==n.insert.lines&&O(e.contentDOM,"Enter",13)||(n.from==r.from-1&&n.to==r.to&&0==n.insert.length||8==o&&n.insert.lengthr.head)&&O(e.contentDOM,"Backspace",8)||n.from==r.from&&n.to==r.to+1&&0==n.insert.length&&O(e.contentDOM,"Delete",46)))return!0;let t,a=n.insert.toString();e.inputState.composing>=0&&e.inputState.composing++;let l=()=>t||(t=function(e,t,n){let s,r=e.state,o=r.selection.main;if(t.from>=o.from&&t.to<=o.to&&t.to-t.from>=(o.to-o.from)/3&&(!n||n.main.empty&&n.main.from==t.from+t.insert.length)&&e.inputState.composing<0){let n=o.fromt.to?r.sliceDoc(t.to,o.to):"";s=r.replaceSelection(e.state.toText(n+t.insert.sliceString(0,void 0,e.state.lineBreak)+i))}else{let a=r.changes(t),l=n&&n.main.to<=a.newLength?n.main:void 0;if(r.selection.ranges.length>1&&e.inputState.composing>=0&&t.to<=o.to&&t.to>=o.to-10){let h,c=e.state.sliceDoc(t.from,t.to),u=n&&ft(e,n.main.head);if(u){let e=t.insert.length-(t.to-t.from);h={from:u.from,to:u.to-e}}else h=e.state.doc.lineAt(o.head);let f=o.to-t.to,d=o.to-o.from;s=r.changeByRange((n=>{if(n.from==o.from&&n.to==o.to)return{changes:a,range:l||n.map(a)};let s=n.to-f,u=s-c.length;if(n.to-n.from!=d||e.state.sliceDoc(u,s)!=c||n.to>=h.from&&n.from<=h.to)return{range:n};let p=r.changes({from:u,to:s,insert:t.insert}),m=n.to-o.to;return{changes:p,range:l?i.jT.range(Math.max(0,l.anchor+m),Math.max(0,l.head+m)):n.map(p)}}))}else s={changes:a,selection:l&&r.selection.replaceRange(l)}}let a="input.type";return(e.composing||e.inputState.compositionPendingChange&&e.inputState.compositionEndedAt>Date.now()-50)&&(e.inputState.compositionPendingChange=!1,a+=".compose",e.inputState.compositionFirstChange&&(a+=".start",e.inputState.compositionFirstChange=!1)),r.update(s,{userEvent:a,scrollIntoView:!0})}(e,n,s));return e.state.facet(Ae).some((t=>t(e,n.from,n.to,a,l)))||e.dispatch(l()),!0}if(s&&!s.main.eq(r)){let t=!1,n="select";return e.inputState.lastSelectionTime>Date.now()-50&&("select"==e.inputState.lastSelectionOrigin&&(t=!0),n=e.inputState.lastSelectionOrigin),e.dispatch({selection:s,scrollIntoView:t,userEvent:n}),!0}return!1}const Wn={childList:!0,characterData:!0,subtree:!0,attributes:!0,characterDataOldValue:!0},qn=U.ie&&U.ie_version<=11;class Jn{constructor(e){this.view=e,this.active=!1,this.selectionRange=new w,this.selectionChanged=!1,this.delayedFlush=-1,this.resizeTimeout=-1,this.queue=[],this.delayedAndroidKey=null,this.flushingAndroidKey=-1,this.lastChange=0,this.scrollTargets=[],this.intersection=null,this.resizeScroll=null,this.intersecting=!1,this.gapIntersection=null,this.gaps=[],this.parentCheck=-1,this.dom=e.contentDOM,this.observer=new MutationObserver((t=>{for(let e of t)this.queue.push(e);(U.ie&&U.ie_version<=11||U.ios&&e.composing)&&t.some((e=>"childList"==e.type&&e.removedNodes.length||"characterData"==e.type&&e.oldValue.length>e.target.nodeValue.length))?this.flushSoon():this.flush()})),qn&&(this.onCharData=e=>{this.queue.push({target:e.target,type:"characterData",oldValue:e.prevValue}),this.flushSoon()}),this.onSelectionChange=this.onSelectionChange.bind(this),this.onResize=this.onResize.bind(this),this.onPrint=this.onPrint.bind(this),this.onScroll=this.onScroll.bind(this),"function"==typeof ResizeObserver&&(this.resizeScroll=new ResizeObserver((()=>{var e;(null===(e=this.view.docView)||void 0===e?void 0:e.lastUpdate){this.parentCheck<0&&(this.parentCheck=setTimeout(this.listenForScroll.bind(this),1e3)),e.length>0&&e[e.length-1].intersectionRatio>0!=this.intersecting&&(this.intersecting=!this.intersecting,this.intersecting!=this.view.inView&&this.onScrollChanged(document.createEvent("Event")))}),{threshold:[0,.001]}),this.intersection.observe(this.dom),this.gapIntersection=new IntersectionObserver((e=>{e.length>0&&e[e.length-1].intersectionRatio>0&&this.onScrollChanged(document.createEvent("Event"))}),{})),this.listenForScroll(),this.readSelectionRange()}onScrollChanged(e){this.view.inputState.runHandlers("scroll",e),this.intersecting&&this.view.measure()}onScroll(e){this.intersecting&&this.flush(!1),this.onScrollChanged(e)}onResize(){this.resizeTimeout<0&&(this.resizeTimeout=setTimeout((()=>{this.resizeTimeout=-1,this.view.requestMeasure()}),50))}onPrint(){this.view.viewState.printing=!0,this.view.measure(),setTimeout((()=>{this.view.viewState.printing=!1,this.view.requestMeasure()}),500)}updateGaps(e){if(this.gapIntersection&&(e.length!=this.gaps.length||this.gaps.some(((t,n)=>t!=e[n])))){this.gapIntersection.disconnect();for(let t of e)this.gapIntersection.observe(t);this.gaps=e}}onSelectionChange(e){let t=this.selectionChanged;if(!this.readSelectionRange()||this.delayedAndroidKey)return;let{view:n}=this,i=this.selectionRange;if(n.state.facet(De)?n.root.activeElement!=this.dom:!d(n.dom,i))return;let s=i.anchorNode&&n.docView.nearest(i.anchorNode);s&&s.ignoreEvent(e)?t||(this.selectionChanged=!1):(U.ie&&U.ie_version<=11||U.android&&U.chrome)&&!n.state.selection.main.empty&&i.focusNode&&m(i.focusNode,i.focusOffset,i.anchorNode,i.anchorOffset)?this.flushSoon():this.flush(!1)}readSelectionRange(){let{view:e}=this,t=U.safari&&11==e.root.nodeType&&function(e){let t=e.activeElement;for(;t&&t.shadowRoot;)t=t.shadowRoot.activeElement;return t}(this.dom.ownerDocument)==this.dom&&function(e){let t=null;function n(e){e.preventDefault(),e.stopImmediatePropagation(),t=e.getTargetRanges()[0]}if(e.contentDOM.addEventListener("beforeinput",n,!0),e.dom.ownerDocument.execCommand("indent"),e.contentDOM.removeEventListener("beforeinput",n,!0),!t)return null;let i=t.startContainer,s=t.startOffset,r=t.endContainer,o=t.endOffset,a=e.docView.domAtPos(e.state.selection.main.anchor);return m(a.node,a.offset,r,o)&&([i,s,r,o]=[r,o,i,s]),{anchorNode:i,anchorOffset:s,focusNode:r,focusOffset:o}}(this.view)||u(e.root);if(!t||this.selectionRange.eq(t))return!1;let n=d(this.dom,t);return n&&!this.selectionChanged&&e.inputState.lastFocusTime>Date.now()-200&&e.inputState.lastTouchTime{let e=this.delayedAndroidKey;e&&(this.clearDelayedAndroidKey(),this.view.inputState.lastKeyCode=e.keyCode,this.view.inputState.lastKeyTime=Date.now(),!this.flush()&&e.force&&O(this.dom,e.key,e.keyCode))};this.flushingAndroidKey=this.view.win.requestAnimationFrame(e)}this.delayedAndroidKey&&"Enter"!=e||(this.delayedAndroidKey={key:e,keyCode:t,force:this.lastChange{this.delayedFlush=-1,this.flush()})))}forceFlush(){this.delayedFlush>=0&&(this.view.win.cancelAnimationFrame(this.delayedFlush),this.delayedFlush=-1),this.flush()}pendingRecords(){for(let e of this.observer.takeRecords())this.queue.push(e);return this.queue}processRecords(){let e=this.pendingRecords();e.length&&(this.queue=[]);let t=-1,n=-1,i=!1;for(let s of e){let e=this.readMutation(s);e&&(e.typeOver&&(i=!0),-1==t?({from:t,to:n}=e):(t=Math.min(e.from,t),n=Math.max(e.to,n)))}return{from:t,to:n,typeOver:i}}readChange(){let{from:e,to:t,typeOver:n}=this.processRecords(),i=this.selectionChanged&&d(this.dom,this.selectionRange);if(e<0&&!i)return null;e>-1&&(this.lastChange=Date.now()),this.view.inputState.lastFocusTime=0,this.selectionChanged=!1;let s=new Hn(this.view,e,t,n);return this.view.docView.domChanged={newSel:s.newSel?s.newSel.main:null},s}flush(e=!0){if(this.delayedFlush>=0||this.delayedAndroidKey)return!1;e&&this.readSelectionRange();let t=this.readChange();if(!t)return this.view.requestMeasure(),!1;let n=this.view.state,i=Vn(this.view,t);return this.view.state==n&&this.view.update([]),i}readMutation(e){let t=this.view.docView.nearest(e.target);if(!t||t.ignoreMutation(e))return null;if(t.markDirty("attributes"==e.type),"attributes"==e.type&&(t.flags|=4),"childList"==e.type){let n=Un(t,e.previousSibling||e.target.previousSibling,-1),i=Un(t,e.nextSibling||e.target.nextSibling,1);return{from:n?t.posAfter(n):t.posAtStart,to:i?t.posBefore(i):t.posAtEnd,typeOver:!1}}return"characterData"==e.type?{from:t.posAtStart,to:t.posAtEnd,typeOver:e.target.nodeValue==e.oldValue}:null}setWindow(e){e!=this.win&&(this.removeWindowListeners(this.win),this.win=e,this.addWindowListeners(this.win))}addWindowListeners(e){e.addEventListener("resize",this.onResize),e.addEventListener("beforeprint",this.onPrint),e.addEventListener("scroll",this.onScroll),e.document.addEventListener("selectionchange",this.onSelectionChange)}removeWindowListeners(e){e.removeEventListener("scroll",this.onScroll),e.removeEventListener("resize",this.onResize),e.removeEventListener("beforeprint",this.onPrint),e.document.removeEventListener("selectionchange",this.onSelectionChange)}destroy(){var e,t,n;this.stop(),null===(e=this.intersection)||void 0===e||e.disconnect(),null===(t=this.gapIntersection)||void 0===t||t.disconnect(),null===(n=this.resizeScroll)||void 0===n||n.disconnect();for(let e of this.scrollTargets)e.removeEventListener("scroll",this.onScroll);this.removeWindowListeners(this.win),clearTimeout(this.parentCheck),clearTimeout(this.resizeTimeout),this.win.cancelAnimationFrame(this.delayedFlush),this.win.cancelAnimationFrame(this.flushingAndroidKey)}}function Un(e,t,n){for(;t;){let i=D.get(t);if(i&&i.parent==e)return i;let s=t.parentNode;t=s!=e.dom?s:n>0?t.nextSibling:t.previousSibling}return null}class Gn{get state(){return this.viewState.state}get viewport(){return this.viewState.viewport}get visibleRanges(){return this.viewState.visibleRanges}get inView(){return this.viewState.inView}get composing(){return this.inputState.composing>0}get compositionStarted(){return this.inputState.composing>=0}get root(){return this._root}get win(){return this.dom.ownerDocument.defaultView||window}constructor(e={}){this.plugins=[],this.pluginMap=new Map,this.editorAttrs={},this.contentAttrs={},this.bidiCache=[],this.destroyed=!1,this.updateState=2,this.measureScheduled=-1,this.measureRequests=[],this.contentDOM=document.createElement("div"),this.scrollDOM=document.createElement("div"),this.scrollDOM.tabIndex=-1,this.scrollDOM.className="cm-scroller",this.scrollDOM.appendChild(this.contentDOM),this.announceDOM=document.createElement("div"),this.announceDOM.style.cssText="position: fixed; top: -10000px",this.announceDOM.setAttribute("aria-live","polite"),this.dom=document.createElement("div"),this.dom.appendChild(this.announceDOM),this.dom.appendChild(this.scrollDOM);let{dispatch:t}=e;this.dispatchTransactions=e.dispatchTransactions||t&&(e=>e.forEach((e=>t(e,this))))||(e=>this.update(e)),this.dispatch=this.dispatch.bind(this),this._root=e.root||function(e){for(;e;){if(e&&(9==e.nodeType||11==e.nodeType&&e.host))return e;e=e.assignedSlot||e.parentNode}return null}(e.parent)||document,this.viewState=new wn(e.state||i.yy.create(e)),e.scrollTo&&e.scrollTo.is(_e)&&(this.viewState.scrollTarget=e.scrollTo.value.clip(this.viewState.state)),this.plugins=this.state.facet(je).map((e=>new Pe(e)));for(let e of this.plugins)e.update(this);this.observer=new Jn(this),this.inputState=new Tt(this),this.inputState.ensureHandlers(this.plugins),this.docView=new ct(this),this.mountStyles(),this.updateAttrs(),this.updateState=0,this.requestMeasure(),e.parent&&e.parent.appendChild(this.dom)}dispatch(...e){let t=1==e.length&&e[0]instanceof i.YW?e:1==e.length&&Array.isArray(e[0])?e[0]:[this.state.update(...e)];this.dispatchTransactions(t,this)}update(e){if(0!=this.updateState)throw new Error("Calls to EditorView.update are not allowed while an update is in progress");let t,n=!1,s=!1,r=this.state;for(let t of e){if(t.startState!=r)throw new RangeError("Trying to update state with a transaction that doesn't start from the previous state.");r=t.state}if(this.destroyed)return void(this.viewState.state=r);let o=this.hasFocus,a=0,l=null;e.some((e=>e.annotation(Qt)))?(this.inputState.notifiedFocused=o,a=1):o!=this.inputState.notifiedFocused&&(this.inputState.notifiedFocused=o,l=Zt(r,o),l||(a=1));let h=this.observer.delayedAndroidKey,c=null;if(h?(this.observer.clearDelayedAndroidKey(),c=this.observer.readChange(),(c&&!this.state.doc.eq(r.doc)||!this.state.selection.eq(r.selection))&&(c=null)):this.observer.clear(),r.facet(i.yy.phrases)!=this.state.facet(i.yy.phrases))return this.setState(r);t=Je.create(this,r,e),t.flags|=a;let u=this.viewState.scrollTarget;try{this.updateState=2;for(let t of e){if(u&&(u=u.map(t.changes)),t.scrollIntoView){let{main:e}=t.state.selection;u=new Te(e.empty?e:i.jT.cursor(e.head,e.head>e.anchor?-1:1))}for(let e of t.effects)e.is(_e)&&(u=e.value.clip(this.state))}this.viewState.update(t,u),this.bidiCache=Xn.update(this.bidiCache,t.changes),t.empty||(this.updatePlugins(t),this.inputState.update(t)),n=this.docView.update(t),this.state.facet(We)!=this.styleModules&&this.mountStyles(),s=this.updateAttrs(),this.showAnnouncements(e),this.docView.updateSelection(n,e.some((e=>e.isUserEvent("select.pointer"))))}finally{this.updateState=0}if(t.startState.facet(_n)!=t.state.facet(_n)&&(this.viewState.mustMeasureContent=!0),(n||s||u||this.viewState.mustEnforceCursorAssoc||this.viewState.mustMeasureContent)&&this.requestMeasure(),!t.empty)for(let e of this.state.facet(Se))try{e(t)}catch(e){Ne(this.state,e,"update listener")}(l||c)&&Promise.resolve().then((()=>{l&&this.state==l.startState&&this.dispatch(l),c&&!Vn(this,c)&&h.force&&O(this.contentDOM,h.key,h.keyCode)}))}setState(e){if(0!=this.updateState)throw new Error("Calls to EditorView.setState are not allowed while an update is in progress");if(this.destroyed)return void(this.viewState.state=e);this.updateState=2;let t=this.hasFocus;try{for(let e of this.plugins)e.destroy(this);this.viewState=new wn(e),this.plugins=e.facet(je).map((e=>new Pe(e))),this.pluginMap.clear();for(let e of this.plugins)e.update(this);this.docView=new ct(this),this.inputState.ensureHandlers(this.plugins),this.mountStyles(),this.updateAttrs(),this.bidiCache=[]}finally{this.updateState=0}t&&this.focus(),this.requestMeasure()}updatePlugins(e){let t=e.startState.facet(je),n=e.state.facet(je);if(t!=n){let i=[];for(let s of n){let n=t.indexOf(s);if(n<0)i.push(new Pe(s));else{let t=this.plugins[n];t.mustUpdate=e,i.push(t)}}for(let t of this.plugins)t.mustUpdate!=e&&t.destroy(this);this.plugins=i,this.pluginMap.clear()}else for(let t of this.plugins)t.mustUpdate=e;for(let e=0;e-1&&this.win.cancelAnimationFrame(this.measureScheduled),this.observer.delayedAndroidKey)return this.measureScheduled=-1,void this.requestMeasure();this.measureScheduled=0,e&&this.observer.forceFlush();let t=null,n=this.scrollDOM,i=n.scrollTop*this.scaleY,{scrollAnchorPos:s,scrollAnchorHeight:r}=this.viewState;Math.abs(i-this.viewState.scrollTop)>1&&(r=-1),this.viewState.scrollAnchorHeight=-1;try{for(let e=0;;e++){if(r<0)if(T(n))s=-1,r=this.viewState.heightMap.height;else{let e=this.viewState.scrollAnchorAt(i);s=e.from,r=e.top}this.updateState=1;let o=this.viewState.measure(this);if(!o&&!this.measureRequests.length&&null==this.viewState.scrollTarget)break;if(e>5){console.warn(this.measureRequests.length?"Measure loop restarted more than 5 times":"Viewport failed to stabilize");break}let a=[];4&o||([this.measureRequests,a]=[a,this.measureRequests]);let l=a.map((e=>{try{return e.read(this)}catch(e){return Ne(this.state,e),Yn}})),h=Je.create(this,this.state,[]),c=!1;h.flags|=o,t?t.flags|=o:t=h,this.updateState=2,h.empty||(this.updatePlugins(h),this.inputState.update(h),this.updateAttrs(),c=this.docView.update(h));for(let e=0;e1||e<-1){i+=e,n.scrollTop=i/this.scaleY,r=-1;continue}}}break}}}finally{this.updateState=0,this.measureScheduled=-1}if(t&&!t.empty)for(let e of this.state.facet(Se))e(t)}get themeClasses(){return Dn+" "+(this.state.facet(Nn)?jn:En)+" "+this.state.facet(_n)}updateAttrs(){let e=Qn(this,Ie,{class:"cm-editor"+(this.hasFocus?" cm-focused ":" ")+this.themeClasses}),t={spellcheck:"false",autocorrect:"off",autocapitalize:"off",translate:"no",contenteditable:this.state.facet(De)?"true":"false",class:"cm-content",style:`${U.tabSize}: ${this.state.tabSize}`,role:"textbox","aria-multiline":"true"};this.state.readOnly&&(t["aria-readonly"]="true"),Qn(this,Be,t);let n=this.observer.ignore((()=>{let n=se(this.contentDOM,this.contentAttrs,t),i=se(this.dom,this.editorAttrs,e);return n||i}));return this.editorAttrs=e,this.contentAttrs=t,n}showAnnouncements(e){let t=!0;for(let n of e)for(let e of n.effects)e.is(Gn.announce)&&(t&&(this.announceDOM.textContent=""),t=!1,this.announceDOM.appendChild(document.createElement("div")).textContent=e.value)}mountStyles(){this.styleModules=this.state.facet(We);let e=this.state.facet(Gn.cspNonce);s.V.mount(this.root,this.styleModules.concat(In).reverse(),e?{nonce:e}:void 0)}readMeasured(){if(2==this.updateState)throw new Error("Reading the editor layout isn't allowed during an update");0==this.updateState&&this.measureScheduled>-1&&this.measure(!1)}requestMeasure(e){if(this.measureScheduled<0&&(this.measureScheduled=this.win.requestAnimationFrame((()=>this.measure()))),e){if(this.measureRequests.indexOf(e)>-1)return;if(null!=e.key)for(let t=0;tt.spec==e))||null),t&&t.update(this).value}get documentTop(){return this.contentDOM.getBoundingClientRect().top+this.viewState.paddingTop}get documentPadding(){return{top:this.viewState.paddingTop,bottom:this.viewState.paddingBottom}}get scaleX(){return this.viewState.scaleX}get scaleY(){return this.viewState.scaleY}elementAtHeight(e){return this.readMeasured(),this.viewState.elementAtHeight(e)}lineBlockAtHeight(e){return this.readMeasured(),this.viewState.lineBlockAtHeight(e)}get viewportLineBlocks(){return this.viewState.viewportLines}lineBlockAt(e){return this.viewState.lineBlockAt(e)}get contentHeight(){return this.viewState.contentHeight}moveByChar(e,t,n){return Mt(this,e,Ct(this,e,t,n))}moveByGroup(e,t){return Mt(this,e,Ct(this,e,t,(t=>function(e,t,n){let s=e.state.charCategorizer(t),r=s(n);return e=>{let t=s(e);return r==i.D0.Space&&(r=t),r==t}}(this,e.head,t))))}moveToLineBoundary(e,t,n=!0){return function(e,t,n,s){let r=At(e,t.head),o=s&&r.type==he.Text&&(e.lineWrapping||r.widgetLineBreaks)?e.coordsAtPos(t.assoc<0&&t.head>r.from?t.head-1:t.head):null;if(o){let t=e.dom.getBoundingClientRect(),s=e.textDirectionAt(r.from),a=e.posAtCoords({x:n==(s==Ue.LTR)?t.right-1:t.left+1,y:(o.top+o.bottom)/2});if(null!=a)return i.jT.cursor(a,n?-1:1)}return i.jT.cursor(n?r.to:r.from,n?-1:1)}(this,e,t,n)}moveVertically(e,t,n){return Mt(this,e,function(e,t,n,s){let r=t.head,o=n?1:-1;if(r==(n?e.state.doc.length:0))return i.jT.cursor(r,t.assoc);let a,l=t.goalColumn,h=e.contentDOM.getBoundingClientRect(),c=e.coordsAtPos(r,t.assoc||-1),u=e.documentTop;if(c)null==l&&(l=c.left-h.left),a=o<0?c.top:c.bottom;else{let t=e.viewState.lineBlockAt(r);null==l&&(l=Math.min(h.right-h.left,e.defaultCharacterWidth*(r-t.from))),a=(o<0?t.top:t.bottom)+u}let f=h.left+l,d=null!=s?s:e.viewState.heightOracle.textHeight>>1;for(let t=0;;t+=10){let n=a+(d+t)*o,s=kt(e,{x:f,y:n},!1,o);if(nh.bottom||(o<0?sr)){let t=e.docView.coordsForChar(s),r=!t||n0)}coordsForChar(e){return this.readMeasured(),this.docView.coordsForChar(e)}get defaultCharacterWidth(){return this.viewState.heightOracle.charWidth}get defaultLineHeight(){return this.viewState.heightOracle.lineHeight}get textDirection(){return this.viewState.defaultTextDirection}textDirectionAt(e){return!this.state.facet(Oe)||ethis.viewport.to?this.textDirection:(this.readMeasured(),this.docView.textDirectionAt(e))}get lineWrapping(){return this.viewState.heightOracle.lineWrapping}bidiSpans(e){if(e.length>Kn)return at(e.length);let t,n=this.textDirectionAt(e.from);for(let i of this.bidiCache)if(i.from==e.from&&i.dir==n&&(i.fresh||it(i.isolates,t=Fe(this,e.from,e.to))))return i.order;t||(t=Fe(this,e.from,e.to));let i=function(e,t,n){if(!e)return[new nt(0,0,t==Ke?1:0)];if(t==Ge&&!n.length&&!tt.test(e))return at(e.length);if(n.length)for(;e.length>st.length;)st[st.length]=256;let i=[],s=t==Ge?0:1;return ot(e,s,s,n,0,e.length,i),i}(e.text,n,t);return this.bidiCache.push(new Xn(e.from,e.to,n,t,!0,i)),i}get hasFocus(){var e;return(this.dom.ownerDocument.hasFocus()||U.safari&&(null===(e=this.inputState)||void 0===e?void 0:e.lastContextMenu)>Date.now()-3e4)&&this.root.activeElement==this.contentDOM}focus(){this.observer.ignore((()=>{A(this.contentDOM),this.docView.updateSelection()}))}setRoot(e){this._root!=e&&(this._root=e,this.observer.setWindow((9==e.nodeType?e:e.ownerDocument).defaultView||window),this.mountStyles())}destroy(){for(let e of this.plugins)e.destroy(this);this.plugins=[],this.inputState.destroy(),this.dom.remove(),this.observer.destroy(),this.measureScheduled>-1&&this.win.cancelAnimationFrame(this.measureScheduled),this.destroyed=!0}static scrollIntoView(e,t={}){return _e.of(new Te("number"==typeof e?i.jT.cursor(e):e,t.y,t.x,t.yMargin,t.xMargin))}scrollSnapshot(){let{scrollTop:e,scrollLeft:t}=this.scrollDOM,n=this.viewState.scrollAnchorAt(e);return _e.of(new Te(i.jT.cursor(n.from),"start","start",n.top-e,t,!0))}static domEventHandlers(e){return Re.define((()=>({})),{eventHandlers:e})}static domEventObservers(e){return Re.define((()=>({})),{eventObservers:e})}static theme(e,t){let n=s.V.newName(),i=[_n.of(n),We.of(Pn(`.${n}`,e))];return t&&t.dark&&i.push(Nn.of(!0)),i}static baseTheme(e){return i.Wl.lowest(We.of(Pn("."+Dn,e,Rn)))}static findFromDOM(e){var t;let n=e.querySelector(".cm-content"),i=n&&D.get(n)||D.get(e);return(null===(t=null==i?void 0:i.rootView)||void 0===t?void 0:t.view)||null}}Gn.styleModule=We,Gn.inputHandler=Ae,Gn.focusChangeEffect=Ce,Gn.perLineTextDirection=Oe,Gn.exceptionSink=ke,Gn.updateListener=Se,Gn.editable=De,Gn.mouseSelectionStyle=we,Gn.dragMovesSelection=xe,Gn.clickAddsSelectionRange=ve,Gn.decorations=Le,Gn.atomicRanges=$e,Gn.bidiIsolatedRanges=ze,Gn.scrollMargins=He,Gn.darkTheme=Nn,Gn.cspNonce=i.r$.define({combine:e=>e.length?e[0]:""}),Gn.contentAttributes=Be,Gn.editorAttributes=Ie,Gn.lineWrapping=Gn.contentAttributes.of({class:"cm-lineWrapping"}),Gn.announce=i.Py.define();const Kn=4096,Yn={};class Xn{constructor(e,t,n,i,s,r){this.from=e,this.to=t,this.dir=n,this.isolates=i,this.fresh=s,this.order=r}static update(e,t){if(t.empty&&!e.some((e=>e.fresh)))return e;let n=[],i=e.length?e[e.length-1].dir:Ue.LTR;for(let s=Math.max(0,e.length-10);s=0;s--){let t=i[s],r="function"==typeof t?t(e):t;r&&te(r,n)}return n}const Zn=U.mac?"mac":U.windows?"win":U.linux?"linux":"key";function ei(e,t,n){return t.altKey&&(e="Alt-"+e),t.ctrlKey&&(e="Ctrl-"+e),t.metaKey&&(e="Meta-"+e),!1!==n&&t.shiftKey&&(e="Shift-"+e),e}const ti=i.Wl.default(Gn.domEventHandlers({keydown:(e,t)=>function(e,t,n,s){let h=function(e){var t=!(a&&e.metaKey&&e.shiftKey&&!e.ctrlKey&&!e.altKey||l&&e.shiftKey&&e.key&&1==e.key.length||"Unidentified"==e.key)&&e.key||(e.shiftKey?o:r)[e.keyCode]||e.key||"Unidentified";return"Esc"==t&&(t="Escape"),"Del"==t&&(t="Delete"),"Left"==t&&(t="ArrowLeft"),"Up"==t&&(t="ArrowUp"),"Right"==t&&(t="ArrowRight"),"Down"==t&&(t="ArrowDown"),t}(t),c=(0,i.gm)(h,0),u=(0,i.nZ)(c)==h.length&&" "!=h,f="",d=!1,p=!1,m=!1;si&&si.view==n&&si.scope==s&&(f=si.prefix+" ",jt.indexOf(t.keyCode)<0&&(p=!0,si=null));let g,b,y=new Set,v=e=>{if(e){for(let i of e.run)if(!y.has(i)&&(y.add(i),i(n,t)))return e.stopPropagation&&(m=!0),!0;e.preventDefault&&(e.stopPropagation&&(m=!0),p=!0)}return!1},x=e[s];return x&&(v(x[f+ei(h,t,!u)])?d=!0:u&&(t.altKey||t.metaKey||t.ctrlKey)&&!(U.windows&&t.ctrlKey&&t.altKey)&&(g=r[t.keyCode])&&g!=h?(v(x[f+ei(g,t,!0)])||t.shiftKey&&(b=o[t.keyCode])!=h&&b!=g&&v(x[f+ei(b,t,!1)]))&&(d=!0):u&&t.shiftKey&&v(x[f+ei(h,t,!0)])&&(d=!0),!d&&v(x._any)&&(d=!0)),p&&(d=!0),d&&m&&t.stopPropagation(),d}(function(e){let t=e.facet(ni),n=ii.get(t);return n||ii.set(t,n=function(e,t=Zn){let n=Object.create(null),i=Object.create(null),s=(e,t)=>{let n=i[e];if(null==n)i[e]=t;else if(n!=t)throw new Error("Key binding "+e+" is used both as a regular binding and as a multi-stroke prefix")},r=(e,i,r,o,a)=>{var l,h;let c=n[e]||(n[e]=Object.create(null)),u=i.split(/ 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oi{constructor(e,t,n,i,s){this.className=e,this.left=t,this.top=n,this.width=i,this.height=s}draw(){let e=document.createElement("div");return e.className=this.className,this.adjust(e),e}update(e,t){return t.className==this.className&&(this.adjust(e),!0)}adjust(e){e.style.left=this.left+"px",e.style.top=this.top+"px",null!=this.width&&(e.style.width=this.width+"px"),e.style.height=this.height+"px"}eq(e){return this.left==e.left&&this.top==e.top&&this.width==e.width&&this.height==e.height&&this.className==e.className}static forRange(e,t,n){if(n.empty){let i=e.coordsAtPos(n.head,n.assoc||1);if(!i)return[];let s=ai(e);return[new oi(t,i.left-s.left,i.top-s.top,null,i.bottom-i.top)]}return function(e,t,n){if(n.to<=e.viewport.from||n.from>=e.viewport.to)return[];let i=Math.max(n.from,e.viewport.from),s=Math.min(n.to,e.viewport.to),r=e.textDirection==Ue.LTR,o=e.contentDOM,a=o.getBoundingClientRect(),l=ai(e),h=o.querySelector(".cm-line"),c=h&&window.getComputedStyle(h),u=a.left+(c?parseInt(c.paddingLeft)+Math.min(0,parseInt(c.textIndent)):0),f=a.right-(c?parseInt(c.paddingRight):0),d=At(e,i),p=At(e,s),m=d.type==he.Text?d:null,g=p.type==he.Text?p:null;if(m&&(e.lineWrapping||d.widgetLineBreaks)&&(m=li(e,i,m)),g&&(e.lineWrapping||p.widgetLineBreaks)&&(g=li(e,s,g)),m&&g&&m.from==g.from)return y(v(n.from,n.to,m));{let t=m?v(n.from,null,m):x(d,!1),i=g?v(null,n.to,g):x(p,!0),s=[];return(m||d).to<(g||p).from-(m&&g?1:0)||d.widgetLineBreaks>1&&t.bottom+e.defaultLineHeight/2h&&i.from=r)break;a>s&&l(Math.max(e,s),null==t&&e<=h,Math.min(a,r),null==n&&a>=c,o.dir)}if(s=i.to+1,s>=r)break}return 0==a.length&&l(h,null==t,c,null==n,e.textDirection),{top:s,bottom:o,horizontal:a}}function x(e,t){let n=a.top+(t?e.top:e.bottom);return{top:n,bottom:n,horizontal:[]}}}(e,t,n)}}function ai(e){let t=e.scrollDOM.getBoundingClientRect();return{left:(e.textDirection==Ue.LTR?t.left:t.right-e.scrollDOM.clientWidth*e.scaleX)-e.scrollDOM.scrollLeft*e.scaleX,top:t.top-e.scrollDOM.scrollTop*e.scaleY}}function li(e,t,n){let s=i.jT.cursor(t);return{from:Math.max(n.from,e.moveToLineBoundary(s,!1,!0).from),to:Math.min(n.to,e.moveToLineBoundary(s,!0,!0).from),type:he.Text}}class hi{constructor(e,t){this.view=e,this.layer=t,this.drawn=[],this.scaleX=1,this.scaleY=1,this.measureReq={read:this.measure.bind(this),write:this.draw.bind(this)},this.dom=e.scrollDOM.appendChild(document.createElement("div")),this.dom.classList.add("cm-layer"),t.above&&this.dom.classList.add("cm-layer-above"),t.class&&this.dom.classList.add(t.class),this.scale(),this.dom.setAttribute("aria-hidden","true"),this.setOrder(e.state),e.requestMeasure(this.measureReq),t.mount&&t.mount(this.dom,e)}update(e){e.startState.facet(ci)!=e.state.facet(ci)&&this.setOrder(e.state),(this.layer.update(e,this.dom)||e.geometryChanged)&&(this.scale(),e.view.requestMeasure(this.measureReq))}setOrder(e){let t=0,n=e.facet(ci);for(;t{return n=e,i=this.drawn[t],!(n.constructor==i.constructor&&n.eq(i));var n,i}))){let t=this.dom.firstChild,n=0;for(let i of e)i.update&&t&&i.constructor&&this.drawn[n].constructor&&i.update(t,this.drawn[n])?(t=t.nextSibling,n++):this.dom.insertBefore(i.draw(),t);for(;t;){let e=t.nextSibling;t.remove(),t=e}this.drawn=e}}destroy(){this.layer.destroy&&this.layer.destroy(this.dom,this.view),this.dom.remove()}}const ci=i.r$.define();function ui(e){return[Re.define((t=>new hi(t,e))),ci.of(e)]}const fi=!U.ios,di=i.r$.define({combine:e=>(0,i.BO)(e,{cursorBlinkRate:1200,drawRangeCursor:!0},{cursorBlinkRate:(e,t)=>Math.min(e,t),drawRangeCursor:(e,t)=>e||t})});function pi(e={}){return[di.of(e),gi,yi,xi,Me.of(!0)]}function mi(e){return e.startState.facet(di)!=e.state.facet(di)}const gi=ui({above:!0,markers(e){let{state:t}=e,n=t.facet(di),s=[];for(let r of t.selection.ranges){let o=r==t.selection.main;if(r.empty?!o||fi:n.drawRangeCursor){let t=o?"cm-cursor cm-cursor-primary":"cm-cursor cm-cursor-secondary",n=r.empty?r:i.jT.cursor(r.head,r.head>r.anchor?-1:1);for(let i of oi.forRange(e,t,n))s.push(i)}}return s},update(e,t){e.transactions.some((e=>e.selection))&&(t.style.animationName="cm-blink"==t.style.animationName?"cm-blink2":"cm-blink");let n=mi(e);return n&&bi(e.state,t),e.docChanged||e.selectionSet||n},mount(e,t){bi(t.state,e)},class:"cm-cursorLayer"});function bi(e,t){t.style.animationDuration=e.facet(di).cursorBlinkRate+"ms"}const yi=ui({above:!1,markers:e=>e.state.selection.ranges.map((t=>t.empty?[]:oi.forRange(e,"cm-selectionBackground",t))).reduce(((e,t)=>e.concat(t))),update:(e,t)=>e.docChanged||e.selectionSet||e.viewportChanged||mi(e),class:"cm-selectionLayer"}),vi={".cm-line":{"& ::selection":{backgroundColor:"transparent !important"},"&::selection":{backgroundColor:"transparent !important"}}};fi&&(vi[".cm-line"].caretColor="transparent !important");const xi=i.Wl.highest(Gn.theme(vi));function wi(e,t,n,i,s){t.lastIndex=0;for(let r,o=e.iterRange(n,i),a=n;!o.next().done;a+=o.value.length)if(!o.lineBreak)for(;r=t.exec(o.value);)s(a+r.index,r)}class ki{constructor(e){const{regexp:t,decoration:n,decorate:i,boundary:s,maxLength:r=1e3}=e;if(!t.global)throw new RangeError("The regular expression given to MatchDecorator should have its 'g' flag set");if(this.regexp=t,i)this.addMatch=(e,t,n,s)=>i(s,n,n+e[0].length,e,t);else if("function"==typeof n)this.addMatch=(e,t,i,s)=>{let r=n(e,t,i);r&&s(i,i+e[0].length,r)};else{if(!n)throw new RangeError("Either 'decorate' or 'decoration' should be provided to MatchDecorator");this.addMatch=(e,t,i,s)=>s(i,i+e[0].length,n)}this.boundary=s,this.maxLength=r}createDeco(e){let t=new i.f_,n=t.add.bind(t);for(let{from:t,to:i}of function(e,t){let n=e.visibleRanges;if(1==n.length&&n[0].from==e.viewport.from&&n[0].to==e.viewport.to)return n;let i=[];for(let{from:s,to:r}of n)s=Math.max(e.state.doc.lineAt(s).from,s-t),r=Math.min(e.state.doc.lineAt(r).to,r+t),i.length&&i[i.length-1].to>=s?i[i.length-1].to=r:i.push({from:s,to:r});return i}(e,this.maxLength))wi(e.state.doc,this.regexp,t,i,((t,i)=>this.addMatch(i,e,t,n)));return t.finish()}updateDeco(e,t){let n=1e9,i=-1;return e.docChanged&&e.changes.iterChanges(((t,s,r,o)=>{o>e.view.viewport.from&&r1e3?this.createDeco(e.view):i>-1?this.updateRange(e.view,t.map(e.changes),n,i):t}updateRange(e,t,n,i){for(let s of e.visibleRanges){let r=Math.max(s.from,n),o=Math.min(s.to,i);if(o>r){let n=e.state.doc.lineAt(r),i=n.ton.from;r--)if(this.boundary.test(n.text[r-1-n.from])){a=r;break}for(;oc.push(n.range(e,t));if(n==i)for(this.regexp.lastIndex=a-n.from;(h=this.regexp.exec(n.text))&&h.indexthis.addMatch(n,e,t,u)));t=t.update({filterFrom:a,filterTo:l,filter:(e,t)=>el,add:c})}}return t}}const Si=Re.fromClass(class{constructor(){this.height=1e3,this.attrs={style:"padding-bottom: 1000px"}}update(e){let{view:t}=e,n=t.viewState.editorHeight*t.scaleY-t.defaultLineHeight-t.documentPadding.top-.5;n>=0&&n!=this.height&&(this.height=n,this.attrs={style:`padding-bottom: ${n}px`})}});function Ai(){return[Si,Be.of((e=>{var t;return(null===(t=e.plugin(Si))||void 0===t?void 0:t.attrs)||null}))]}function Ci(){return Mi}const Oi=ce.line({class:"cm-activeLine"}),Mi=Re.fromClass(class{constructor(e){this.decorations=this.getDeco(e)}update(e){(e.docChanged||e.selectionSet)&&(this.decorations=this.getDeco(e.view))}getDeco(e){let t=-1,n=[];for(let i of e.state.selection.ranges){let s=e.lineBlockAt(i.head);s.from>t&&(n.push(Oi.range(s.from)),t=s.from)}return ce.set(n)}},{decorations:e=>e.decorations}),Ti=2e3;function _i(e,t){let n=e.posAtCoords({x:t.clientX,y:t.clientY},!1),s=e.state.doc.lineAt(n),r=n-s.from,o=r>Ti?-1:r==s.length?function(e,t){let n=e.coordsAtPos(e.viewport.from);return n?Math.round(Math.abs((n.left-t)/e.defaultCharacterWidth)):-1}(e,t.clientX):(0,i.IS)(s.text,e.state.tabSize,n-s.from);return{line:s.number,col:o,off:r}}function Ni(e){let t=(null==e?void 0:e.eventFilter)||(e=>e.altKey&&0==e.button);return Gn.mouseSelectionStyle.of(((e,n)=>t(n)?function(e,t){let n=_i(e,t),s=e.state.selection;return n?{update(e){if(e.docChanged){let t=e.changes.mapPos(e.startState.doc.line(n.line).from),i=e.state.doc.lineAt(t);n={line:i.number,col:n.col,off:Math.min(n.off,i.length)},s=s.map(e.changes)}},get(t,r,o){let a=_i(e,t);if(!a)return s;let l=function(e,t,n){let s=Math.min(t.line,n.line),r=Math.max(t.line,n.line),o=[];if(t.off>Ti||n.off>Ti||t.col<0||n.col<0){let a=Math.min(t.off,n.off),l=Math.max(t.off,n.off);for(let t=s;t<=r;t++){let n=e.doc.line(t);n.length<=l&&o.push(i.jT.range(n.from+a,n.to+l))}}else{let a=Math.min(t.col,n.col),l=Math.max(t.col,n.col);for(let t=s;t<=r;t++){let n=e.doc.line(t),s=(0,i.Gz)(n.text,a,e.tabSize,!0);if(s<0)o.push(i.jT.cursor(n.to));else{let t=(0,i.Gz)(n.text,l,e.tabSize);o.push(i.jT.range(n.from+s,n.from+t))}}}return o}(e.state,n,a);return l.length?o?i.jT.create(l.concat(s.ranges)):i.jT.create(l):s}}:null}(e,n):null))}const Di={Alt:[18,e=>!!e.altKey],Control:[17,e=>!!e.ctrlKey],Shift:[16,e=>!!e.shiftKey],Meta:[91,e=>!!e.metaKey]},Ei={style:"cursor: crosshair"};function ji(e={}){let[t,n]=Di[e.key||"Alt"],i=Re.fromClass(class{constructor(e){this.view=e,this.isDown=!1}set(e){this.isDown!=e&&(this.isDown=e,this.view.update([]))}},{eventObservers:{keydown(e){this.set(e.keyCode==t||n(e))},keyup(e){e.keyCode!=t&&n(e)||this.set(!1)},mousemove(e){this.set(n(e))}}});return[i,Gn.contentAttributes.of((e=>{var t;return(null===(t=e.plugin(i))||void 0===t?void 0:t.isDown)?Ei:null}))]}const Ri="-10000px";class Pi{constructor(e,t,n){this.facet=t,this.createTooltipView=n,this.input=e.state.facet(t),this.tooltips=this.input.filter((e=>e)),this.tooltipViews=this.tooltips.map(n)}update(e,t){var n;let i=e.state.facet(this.facet),s=i.filter((e=>e));if(i===this.input){for(let t of this.tooltipViews)t.update&&t.update(e);return!1}let r=[],o=t?[]:null;for(let n=0;nt[n]=e)),t.length=o.length),this.input=i,this.tooltips=s,this.tooltipViews=r,!0}}function Ii(e={}){return Li.of(e)}function Bi(e){let{win:t}=e;return{top:0,left:0,bottom:t.innerHeight,right:t.innerWidth}}const Li=i.r$.define({combine:e=>{var t,n,i;return{position:U.ios?"absolute":(null===(t=e.find((e=>e.position)))||void 0===t?void 0:t.position)||"fixed",parent:(null===(n=e.find((e=>e.parent)))||void 0===n?void 0:n.parent)||null,tooltipSpace:(null===(i=e.find((e=>e.tooltipSpace)))||void 0===i?void 0:i.tooltipSpace)||Bi}}}),$i=new WeakMap,zi=Re.fromClass(class{constructor(e){this.view=e,this.above=[],this.inView=!0,this.madeAbsolute=!1,this.lastTransaction=0,this.measureTimeout=-1;let t=e.state.facet(Li);this.position=t.position,this.parent=t.parent,this.classes=e.themeClasses,this.createContainer(),this.measureReq={read:this.readMeasure.bind(this),write:this.writeMeasure.bind(this),key:this},this.manager=new Pi(e,Vi,(e=>this.createTooltip(e))),this.intersectionObserver="function"==typeof IntersectionObserver?new IntersectionObserver((e=>{Date.now()>this.lastTransaction-50&&e.length>0&&e[e.length-1].intersectionRatio<1&&this.measureSoon()}),{threshold:[1]}):null,this.observeIntersection(),e.win.addEventListener("resize",this.measureSoon=this.measureSoon.bind(this)),this.maybeMeasure()}createContainer(){this.parent?(this.container=document.createElement("div"),this.container.style.position="relative",this.container.className=this.view.themeClasses,this.parent.appendChild(this.container)):this.container=this.view.dom}observeIntersection(){if(this.intersectionObserver){this.intersectionObserver.disconnect();for(let e of this.manager.tooltipViews)this.intersectionObserver.observe(e.dom)}}measureSoon(){this.measureTimeout<0&&(this.measureTimeout=setTimeout((()=>{this.measureTimeout=-1,this.maybeMeasure()}),50))}update(e){e.transactions.length&&(this.lastTransaction=Date.now());let t=this.manager.update(e,this.above);t&&this.observeIntersection();let n=t||e.geometryChanged,i=e.state.facet(Li);if(i.position!=this.position&&!this.madeAbsolute){this.position=i.position;for(let e of this.manager.tooltipViews)e.dom.style.position=this.position;n=!0}if(i.parent!=this.parent){this.parent&&this.container.remove(),this.parent=i.parent,this.createContainer();for(let e of this.manager.tooltipViews)this.container.appendChild(e.dom);n=!0}else this.parent&&this.view.themeClasses!=this.classes&&(this.classes=this.container.className=this.view.themeClasses);n&&this.maybeMeasure()}createTooltip(e){let t=e.create(this.view);if(t.dom.classList.add("cm-tooltip"),e.arrow&&!t.dom.querySelector(".cm-tooltip > .cm-tooltip-arrow")){let e=document.createElement("div");e.className="cm-tooltip-arrow",t.dom.appendChild(e)}return t.dom.style.position=this.position,t.dom.style.top=Ri,t.dom.style.left="0px",this.container.appendChild(t.dom),t.mount&&t.mount(this.view),t}destroy(){var e,t;this.view.win.removeEventListener("resize",this.measureSoon);for(let t of this.manager.tooltipViews)t.dom.remove(),null===(e=t.destroy)||void 0===e||e.call(t);this.parent&&this.container.remove(),null===(t=this.intersectionObserver)||void 0===t||t.disconnect(),clearTimeout(this.measureTimeout)}readMeasure(){let e=this.view.dom.getBoundingClientRect(),t=1,n=1,i=!1;if("fixed"==this.position&&this.manager.tooltipViews.length){let{dom:e}=this.manager.tooltipViews[0];if(U.gecko)i=e.offsetParent!=this.container.ownerDocument.body;else if(1!=this.view.scaleX||1!=this.view.scaleY)i=!0;else if(e.style.top==Ri&&"0px"==e.style.left){let t=e.getBoundingClientRect();i=Math.abs(t.top+1e4)>1||Math.abs(t.left)>1}}if(i||"absolute"==this.position)if(this.parent){let e=this.parent.getBoundingClientRect();e.width&&e.height&&(t=e.width/this.parent.offsetWidth,n=e.height/this.parent.offsetHeight)}else({scaleX:t,scaleY:n}=this.view.viewState);return{editor:e,parent:this.parent?this.container.getBoundingClientRect():e,pos:this.manager.tooltips.map(((e,t)=>{let 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s{constructor(e,t,n,i,s,r,o,a,l,h=0,c){this.p=e,this.stack=t,this.state=n,this.reducePos=i,this.pos=s,this.score=r,this.buffer=o,this.bufferBase=a,this.curContext=l,this.lookAhead=h,this.parent=c}toString(){return`[${this.stack.filter(((e,t)=>t%3==0)).concat(this.state)}]@${this.pos}${this.score?"!"+this.score:""}`}static start(e,t,n=0){let i=e.parser.context;return new s(e,[],t,n,n,0,[],0,i?new r(i,i.start):null,0,null)}get context(){return this.curContext?this.curContext.context:null}pushState(e,t){this.stack.push(this.state,t,this.bufferBase+this.buffer.length),this.state=e}reduce(e){var t;let n=e>>19,i=65535&e,{parser:s}=this.p,r=s.dynamicPrecedence(i);if(r&&(this.score+=r),0==n)return this.pushState(s.getGoto(this.state,i,!0),this.reducePos),i=2e3&&!(null===(t=this.p.parser.nodeSet.types[i])||void 0===t?void 0:t.isAnonymous)&&(a==this.p.lastBigReductionStart?(this.p.bigReductionCount++,this.p.lastBigReductionSize=l):this.p.lastBigReductionSizeo;)this.stack.pop();this.reduceContext(i,a)}storeNode(e,t,n,i=4,s=!1){if(0==e&&(!this.stack.length||this.stack[this.stack.length-1]0&&0==e.buffer[i-4]&&e.buffer[i-1]>-1){if(t==n)return;if(e.buffer[i-2]>=t)return void(e.buffer[i-2]=n)}}if(s&&this.pos!=n){let s=this.buffer.length;if(s>0&&0!=this.buffer[s-4])for(;s>0&&this.buffer[s-2]>n;)this.buffer[s]=this.buffer[s-4],this.buffer[s+1]=this.buffer[s-3],this.buffer[s+2]=this.buffer[s-2],this.buffer[s+3]=this.buffer[s-1],s-=4,i>4&&(i-=4);this.buffer[s]=e,this.buffer[s+1]=t,this.buffer[s+2]=n,this.buffer[s+3]=i}else this.buffer.push(e,t,n,i)}shift(e,t,n,i){if(131072&e)this.pushState(65535&e,this.pos);else if(0==(262144&e)){let s=e,{parser:r}=this.p;(i>this.pos||t<=r.maxNode)&&(this.pos=i,r.stateFlag(s,1)||(this.reducePos=i)),this.pushState(s,n),this.shiftContext(t,n),t<=r.maxNode&&this.buffer.push(t,n,i,4)}else this.pos=i,this.shiftContext(t,n),t<=this.p.parser.maxNode&&this.buffer.push(t,n,i,4)}apply(e,t,n,i){65536&e?this.reduce(e):this.shift(e,t,n,i)}useNode(e,t){let n=this.p.reused.length-1;(n<0||this.p.reused[n]!=e)&&(this.p.reused.push(e),n++);let i=this.pos;this.reducePos=this.pos=i+e.length,this.pushState(t,i),this.buffer.push(n,i,this.reducePos,-1),this.curContext&&this.updateContext(this.curContext.tracker.reuse(this.curContext.context,e,this,this.p.stream.reset(this.pos-e.length)))}split(){let e=this,t=e.buffer.length;for(;t>0&&e.buffer[t-2]>e.reducePos;)t-=4;let n=e.buffer.slice(t),i=e.bufferBase+t;for(;e&&i==e.bufferBase;)e=e.parent;return new s(this.p,this.stack.slice(),this.state,this.reducePos,this.pos,this.score,n,i,this.curContext,this.lookAhead,e)}recoverByDelete(e,t){let n=e<=this.p.parser.maxNode;n&&this.storeNode(e,this.pos,t,4),this.storeNode(0,this.pos,t,n?8:4),this.pos=this.reducePos=t,this.score-=190}canShift(e){for(let t=new o(this);;){let n=this.p.parser.stateSlot(t.state,4)||this.p.parser.hasAction(t.state,e);if(0==n)return!1;if(0==(65536&n))return!0;t.reduce(n)}}recoverByInsert(e){if(this.stack.length>=300)return[];let t=this.p.parser.nextStates(this.state);if(t.length>8||this.stack.length>=120){let n=[];for(let i,s=0;s1&t&&e==i))||n.push(t[e],i)}t=n}let n=[];for(let e=0;e>19,i=65535&t,s=this.stack.length-3*n;if(s<0||e.getGoto(this.stack[s],i,!1)<0){let e=this.findForcedReduction();if(null==e)return!1;t=e}this.storeNode(0,this.pos,this.pos,4,!0),this.score-=100}return this.reducePos=this.pos,this.reduce(t),!0}findForcedReduction(){let{parser:e}=this.p,t=[],n=(i,s)=>{if(!t.includes(i))return t.push(i),e.allActions(i,(t=>{if(393216&t);else if(65536&t){let n=(t>>19)-s;if(n>1){let i=65535&t,s=this.stack.length-3*n;if(s>=0&&e.getGoto(this.stack[s],i,!1)>=0)return n<<19|65536|i}}else{let e=n(t,s+1);if(null!=e)return e}}))};return n(this.state,0)}forceAll(){for(;!this.p.parser.stateFlag(this.state,2);)if(!this.forceReduce()){this.storeNode(0,this.pos,this.pos,4,!0);break}return this}get deadEnd(){if(3!=this.stack.length)return!1;let{parser:e}=this.p;return 65535==e.data[e.stateSlot(this.state,1)]&&!e.stateSlot(this.state,4)}restart(){this.storeNode(0,this.pos,this.pos,4,!0),this.state=this.stack[0],this.stack.length=0}sameState(e){if(this.state!=e.state||this.stack.length!=e.stack.length)return!1;for(let t=0;tthis.lookAhead&&(this.emitLookAhead(),this.lookAhead=e)}close(){this.curContext&&this.curContext.tracker.strict&&this.emitContext(),this.lookAhead>0&&this.emitLookAhead()}}class r{constructor(e,t){this.tracker=e,this.context=t,this.hash=e.strict?e.hash(t):0}}class o{constructor(e){this.start=e,this.state=e.state,this.stack=e.stack,this.base=this.stack.length}reduce(e){let t=65535&e,n=e>>19;0==n?(this.stack==this.start.stack&&(this.stack=this.stack.slice()),this.stack.push(this.state,0,0),this.base+=3):this.base-=3*(n-1);let i=this.start.p.parser.getGoto(this.stack[this.base-3],t,!0);this.state=i}}class a{constructor(e,t,n){this.stack=e,this.pos=t,this.index=n,this.buffer=e.buffer,0==this.index&&this.maybeNext()}static create(e,t=e.bufferBase+e.buffer.length){return new a(e,t,t-e.bufferBase)}maybeNext(){let e=this.stack.parent;null!=e&&(this.index=this.stack.bufferBase-e.bufferBase,this.stack=e,this.buffer=e.buffer)}get id(){return this.buffer[this.index-4]}get start(){return this.buffer[this.index-3]}get end(){return this.buffer[this.index-2]}get size(){return this.buffer[this.index-1]}next(){this.index-=4,this.pos-=4,0==this.index&&this.maybeNext()}fork(){return new a(this.stack,this.pos,this.index)}}function l(e,t=Uint16Array){if("string"!=typeof e)return e;let n=null;for(let i=0,s=0;i=92&&t--,t>=34&&t--;let s=t-32;if(s>=46&&(s-=46,n=!0),r+=s,n)break;r*=46}n?n[s++]=r:n=new t(r)}return n}class h{constructor(){this.start=-1,this.value=-1,this.end=-1,this.extended=-1,this.lookAhead=0,this.mask=0,this.context=0}}const c=new h;class u{constructor(e,t){this.input=e,this.ranges=t,this.chunk="",this.chunkOff=0,this.chunk2="",this.chunk2Pos=0,this.next=-1,this.token=c,this.rangeIndex=0,this.pos=this.chunkPos=t[0].from,this.range=t[0],this.end=t[t.length-1].to,this.readNext()}resolveOffset(e,t){let n=this.range,i=this.rangeIndex,s=this.pos+e;for(;sn.to:s>=n.to;){if(i==this.ranges.length-1)return null;let e=this.ranges[++i];s+=e.from-n.to,n=e}return s}clipPos(e){if(e>=this.range.from&&ee)return Math.max(e,t.from);return this.end}peek(e){let t,n,i=this.chunkOff+e;if(i>=0&&i=this.chunk2Pos&&ti.to&&(this.chunk2=this.chunk2.slice(0,i.to-t)),n=this.chunk2.charCodeAt(0)}}return t>=this.token.lookAhead&&(this.token.lookAhead=t+1),n}acceptToken(e,t=0){let n=t?this.resolveOffset(t,-1):this.pos;if(null==n||n=this.chunk2Pos&&this.posthis.range.to?e.slice(0,this.range.to-this.pos):e,this.chunkPos=this.pos,this.chunkOff=0}}readNext(){return this.chunkOff>=this.chunk.length&&(this.getChunk(),this.chunkOff==this.chunk.length)?this.next=-1:this.next=this.chunk.charCodeAt(this.chunkOff)}advance(e=1){for(this.chunkOff+=e;this.pos+e>=this.range.to;){if(this.rangeIndex==this.ranges.length-1)return this.setDone();e-=this.range.to-this.pos,this.range=this.ranges[++this.rangeIndex],this.pos=this.range.from}return this.pos+=e,this.pos>=this.token.lookAhead&&(this.token.lookAhead=this.pos+1),this.readNext()}setDone(){return this.pos=this.chunkPos=this.end,this.range=this.ranges[this.rangeIndex=this.ranges.length-1],this.chunk="",this.next=-1}reset(e,t){if(t?(this.token=t,t.start=e,t.lookAhead=e+1,t.value=t.extended=-1):this.token=c,this.pos!=e){if(this.pos=e,e==this.end)return this.setDone(),this;for(;e=this.range.to;)this.range=this.ranges[++this.rangeIndex];e>=this.chunkPos&&e=this.chunkPos&&t<=this.chunkPos+this.chunk.length)return this.chunk.slice(e-this.chunkPos,t-this.chunkPos);if(e>=this.chunk2Pos&&t<=this.chunk2Pos+this.chunk2.length)return this.chunk2.slice(e-this.chunk2Pos,t-this.chunk2Pos);if(e>=this.range.from&&t<=this.range.to)return this.input.read(e,t);let n="";for(let i of this.ranges){if(i.from>=t)break;i.to>e&&(n+=this.input.read(Math.max(i.from,e),Math.min(i.to,t)))}return n}}class f{constructor(e,t){this.data=e,this.id=t}token(e,t){let{parser:n}=t.p;m(this.data,e,t,this.id,n.data,n.tokenPrecTable)}}f.prototype.contextual=f.prototype.fallback=f.prototype.extend=!1;class d{constructor(e,t,n){this.precTable=t,this.elseToken=n,this.data="string"==typeof e?l(e):e}token(e,t){let n=e.pos,i=0;for(;;){let n=e.next<0,s=e.resolveOffset(1,1);if(m(this.data,e,t,0,this.data,this.precTable),e.token.value>-1)break;if(null==this.elseToken)return;if(n||i++,null==s)break;e.reset(s,e.token)}i&&(e.reset(n,e.token),e.acceptToken(this.elseToken,i))}}d.prototype.contextual=f.prototype.fallback=f.prototype.extend=!1;class p{constructor(e,t={}){this.token=e,this.contextual=!!t.contextual,this.fallback=!!t.fallback,this.extend=!!t.extend}}function m(e,t,n,i,s,r){let o=0,a=1<0){let n=e[i];if(l.allows(n)&&(-1==t.token.value||t.token.value==n||b(n,t.token.value,s,r))){t.acceptToken(n);break}}let i=t.next,h=0,c=e[o+2];if(!(t.next<0&&c>h&&65535==e[n+3*c-3])){for(;h>1,r=n+s+(s<<1),a=e[r],l=e[r+1]||65536;if(i=l)){o=e[r+2],t.advance();continue e}h=s+1}}break}o=e[n+3*c-1]}}function g(e,t,n){for(let i,s=t;65535!=(i=e[s]);s++)if(i==n)return s-t;return-1}function b(e,t,n,i){let s=g(n,i,t);return s<0||g(n,i,e)t)&&!s.type.isError)return n<0?Math.max(0,Math.min(s.to-1,t-25)):Math.min(e.length,Math.max(s.from+1,t+25));if(n<0?s.prevSibling():s.nextSibling())break;if(!s.parent())return n<0?0:e.length}}class w{constructor(e,t){this.fragments=e,this.nodeSet=t,this.i=0,this.fragment=null,this.safeFrom=-1,this.safeTo=-1,this.trees=[],this.start=[],this.index=[],this.nextFragment()}nextFragment(){let e=this.fragment=this.i==this.fragments.length?null:this.fragments[this.i++];if(e){for(this.safeFrom=e.openStart?x(e.tree,e.from+e.offset,1)-e.offset:e.from,this.safeTo=e.openEnd?x(e.tree,e.to+e.offset,-1)-e.offset:e.to;this.trees.length;)this.trees.pop(),this.start.pop(),this.index.pop();this.trees.push(e.tree),this.start.push(-e.offset),this.index.push(0),this.nextStart=this.safeFrom}else this.nextStart=1e9}nodeAt(e){if(ee)return this.nextStart=o,null;if(r instanceof i.mp){if(o==e){if(o=Math.max(this.safeFrom,e)&&(this.trees.push(r),this.start.push(o),this.index.push(0))}else this.index[t]++,this.nextStart=o+r.length}}}class k{constructor(e,t){this.stream=t,this.tokens=[],this.mainToken=null,this.actions=[],this.tokens=e.tokenizers.map((e=>new h))}getActions(e){let t=0,n=null,{parser:i}=e.p,{tokenizers:s}=i,r=i.stateSlot(e.state,3),o=e.curContext?e.curContext.hash:0,a=0;for(let i=0;ih.end+25&&(a=Math.max(h.lookAhead,a)),0!=h.value)){let i=t;if(h.extended>-1&&(t=this.addActions(e,h.extended,h.end,t)),t=this.addActions(e,h.value,h.end,t),!l.extend&&(n=h,t>i))break}}for(;this.actions.length>t;)this.actions.pop();return a&&e.setLookAhead(a),n||e.pos!=this.stream.end||(n=new h,n.value=e.p.parser.eofTerm,n.start=n.end=e.pos,t=this.addActions(e,n.value,n.end,t)),this.mainToken=n,this.actions}getMainToken(e){if(this.mainToken)return this.mainToken;let t=new h,{pos:n,p:i}=e;return t.start=n,t.end=Math.min(n+1,i.stream.end),t.value=n==i.stream.end?i.parser.eofTerm:0,t}updateCachedToken(e,t,n){let i=this.stream.clipPos(n.pos);if(t.token(this.stream.reset(i,e),n),e.value>-1){let{parser:t}=n.p;for(let i=0;i=0&&n.p.parser.dialect.allows(s>>1)){0==(1&s)?e.value=s>>1:e.extended=s>>1;break}}}else e.value=0,e.end=this.stream.clipPos(i+1)}putAction(e,t,n,i){for(let t=0;t4*e.bufferLength?new w(n,e.nodeSet):null}get parsedPos(){return this.minStackPos}advance(){let e,t,n=this.stacks,i=this.minStackPos,s=this.stacks=[];if(this.bigReductionCount>300&&1==n.length){let[e]=n;for(;e.forceReduce()&&e.stack.length&&e.stack[e.stack.length-2]>=this.lastBigReductionStart;);this.bigReductionCount=this.lastBigReductionSize=0}for(let r=0;ri)s.push(o);else{if(this.advanceStack(o,s,n))continue;{e||(e=[],t=[]),e.push(o);let n=this.tokens.getMainToken(o);t.push(n.value,n.end)}}break}}if(!s.length){let t=e&&function(e){let t=null;for(let n of e){let e=n.p.stoppedAt;(n.pos==n.p.stream.end||null!=e&&n.pos>e)&&n.p.parser.stateFlag(n.state,2)&&(!t||t.scorethis.stoppedAt?e[0]:this.runRecovery(e,t,s);if(n)return y&&console.log("Force-finish "+this.stackID(n)),this.stackToTree(n.forceAll())}if(this.recovering){let e=1==this.recovering?1:3*this.recovering;if(s.length>e)for(s.sort(((e,t)=>t.score-e.score));s.length>e;)s.pop();s.some((e=>e.reducePos>i))&&this.recovering--}else if(s.length>1){e:for(let e=0;e500&&i.buffer.length>500){if(!((t.score-i.score||t.buffer.length-i.buffer.length)>0)){s.splice(e--,1);continue e}s.splice(n--,1)}}}s.length>12&&s.splice(12,s.length-12)}this.minStackPos=s[0].pos;for(let e=1;e ":"";if(null!=this.stoppedAt&&s>this.stoppedAt)return e.forceReduce()?e:null;if(this.fragments){let t=e.curContext&&e.curContext.tracker.strict,n=t?e.curContext.hash:0;for(let a=this.fragments.nodeAt(s);a;){let s=this.parser.nodeSet.types[a.type.id]==a.type?r.getGoto(e.state,a.type.id):-1;if(s>-1&&a.length&&(!t||(a.prop(i.md.contextHash)||0)==n))return e.useNode(a,s),y&&console.log(o+this.stackID(e)+` (via reuse of ${r.getName(a.type.id)})`),!0;if(!(a instanceof i.mp)||0==a.children.length||a.positions[0]>0)break;let l=a.children[0];if(!(l instanceof i.mp&&0==a.positions[0]))break;a=l}}let a=r.stateSlot(e.state,4);if(a>0)return e.reduce(a),y&&console.log(o+this.stackID(e)+` (via always-reduce ${r.getName(65535&a)})`),!0;if(e.stack.length>=8400)for(;e.stack.length>6e3&&e.forceReduce(););let l=this.tokens.getActions(e);for(let i=0;is?t.push(f):n.push(f)}return!1}advanceFully(e,t){let n=e.pos;for(;;){if(!this.advanceStack(e,null,null))return!1;if(e.pos>n)return A(e,t),!0}}runRecovery(e,t,n){let i=null,s=!1;for(let r=0;r ":"";if(o.deadEnd){if(s)continue;if(s=!0,o.restart(),y&&console.log(h+this.stackID(o)+" (restarted)"),this.advanceFully(o,n))continue}let c=o.split(),u=h;for(let e=0;c.forceReduce()&&e<10&&(y&&console.log(u+this.stackID(c)+" (via force-reduce)"),!this.advanceFully(c,n));e++)y&&(u=this.stackID(c)+" -> ");for(let e of o.recoverByInsert(a))y&&console.log(h+this.stackID(e)+" (via recover-insert)"),this.advanceFully(e,n);this.stream.end>o.pos?(l==o.pos&&(l++,a=0),o.recoverByDelete(a,l),y&&console.log(h+this.stackID(o)+` (via recover-delete ${this.parser.getName(a)})`),A(o,n)):(!i||i.scoree;class M{constructor(e){this.start=e.start,this.shift=e.shift||O,this.reduce=e.reduce||O,this.reuse=e.reuse||O,this.hash=e.hash||(()=>0),this.strict=!1!==e.strict}}class T extends i._b{constructor(e){if(super(),this.wrappers=[],14!=e.version)throw new RangeError(`Parser version (${e.version}) doesn't match runtime version (14)`);let t=e.nodeNames.split(" ");this.minRepeatTerm=t.length;for(let n=0;ne.topRules[t][1])),s=[];for(let e=0;e=0)r(i,e,t[n++]);else{let s=t[n+-i];for(let o=-i;o>0;o--)r(t[n++],e,s);n++}}}this.nodeSet=new i.Lj(t.map(((t,r)=>i.Jq.define({name:r>=this.minRepeatTerm?void 0:t,id:r,props:s[r],top:n.indexOf(r)>-1,error:0==r,skipped:e.skippedNodes&&e.skippedNodes.indexOf(r)>-1})))),e.propSources&&(this.nodeSet=this.nodeSet.extend(...e.propSources)),this.strict=!1,this.bufferLength=i.L3;let o=l(e.tokenData);this.context=e.context,this.specializerSpecs=e.specialized||[],this.specialized=new Uint16Array(this.specializerSpecs.length);for(let e=0;e"number"==typeof e?new f(o,e):e)),this.topRules=e.topRules,this.dialects=e.dialects||{},this.dynamicPrecedences=e.dynamicPrecedences||null,this.tokenPrecTable=e.tokenPrec,this.termNames=e.termNames||null,this.maxNode=this.nodeSet.types.length-1,this.dialect=this.parseDialect(),this.top=this.topRules[Object.keys(this.topRules)[0]]}createParse(e,t,n){let i=new S(this,e,t,n);for(let s of this.wrappers)i=s(i,e,t,n);return i}getGoto(e,t,n=!1){let i=this.goto;if(t>=i[0])return-1;for(let s=i[t+1];;){let t=i[s++],r=1&t,o=i[s++];if(r&&n)return o;for(let n=s+(t>>1);s0}validAction(e,t){return!!this.allActions(e,(e=>e==t||null))}allActions(e,t){let n=this.stateSlot(e,4),i=n?t(n):void 0;for(let n=this.stateSlot(e,1);null==i;n+=3){if(65535==this.data[n]){if(1!=this.data[n+1])break;n=_(this.data,n+2)}i=t(_(this.data,n+1))}return i}nextStates(e){let t=[];for(let n=this.stateSlot(e,1);;n+=3){if(65535==this.data[n]){if(1!=this.data[n+1])break;n=_(this.data,n+2)}if(0==(1&this.data[n+2])){let e=this.data[n+1];t.some(((t,n)=>1&n&&t==e))||t.push(this.data[n],e)}}return t}configure(e){let t=Object.assign(Object.create(T.prototype),this);if(e.props&&(t.nodeSet=this.nodeSet.extend(...e.props)),e.top){let n=this.topRules[e.top];if(!n)throw new RangeError(`Invalid top rule name ${e.top}`);t.top=n}return e.tokenizers&&(t.tokenizers=this.tokenizers.map((t=>{let n=e.tokenizers.find((e=>e.from==t));return n?n.to:t}))),e.specializers&&(t.specializers=this.specializers.slice(),t.specializerSpecs=this.specializerSpecs.map(((n,i)=>{let s=e.specializers.find((e=>e.from==n.external));if(!s)return n;let r=Object.assign(Object.assign({},n),{external:s.to});return t.specializers[i]=N(r),r}))),e.contextTracker&&(t.context=e.contextTracker),e.dialect&&(t.dialect=this.parseDialect(e.dialect)),null!=e.strict&&(t.strict=e.strict),e.wrap&&(t.wrappers=t.wrappers.concat(e.wrap)),null!=e.bufferLength&&(t.bufferLength=e.bufferLength),t}hasWrappers(){return this.wrappers.length>0}getName(e){return this.termNames?this.termNames[e]:String(e<=this.maxNode&&this.nodeSet.types[e].name||e)}get eofTerm(){return this.maxNode+1}get topNode(){return this.nodeSet.types[this.top[1]]}dynamicPrecedence(e){let t=this.dynamicPrecedences;return null==t?0:t[e]||0}parseDialect(e){let t=Object.keys(this.dialects),n=t.map((()=>!1));if(e)for(let i of e.split(" ")){let e=t.indexOf(i);e>=0&&(n[e]=!0)}let i=null;for(let e=0;ee.external(n,i)<<1|t}return e.get}},37207:(e,t,n)=>{"use strict";n.d(t,{V:()=>o});const i="undefined"==typeof Symbol?"__ͼ":Symbol.for("ͼ"),s="undefined"==typeof Symbol?"__styleSet"+Math.floor(1e8*Math.random()):Symbol("styleSet"),r="undefined"!=typeof globalThis?globalThis:"undefined"!=typeof window?window:{};class o{constructor(e,t){this.rules=[];let{finish:n}=t||{};function i(e){return/^@/.test(e)?[e]:e.split(/,\s*/)}function s(e,t,r,o){let a=[],l=/^@(\w+)\b/.exec(e[0]),h=l&&"keyframes"==l[1];if(l&&null==t)return r.push(e[0]+";");for(let n in t){let o=t[n];if(/&/.test(n))s(n.split(/,\s*/).map((t=>e.map((e=>t.replace(/&/,e))))).reduce(((e,t)=>e.concat(t))),o,r);else if(o&&"object"==typeof o){if(!l)throw new RangeError("The value of a property ("+n+") should be a primitive value.");s(i(n),o,a,h)}else null!=o&&a.push(n.replace(/_.*/,"").replace(/[A-Z]/g,(e=>"-"+e.toLowerCase()))+": "+o+";")}(a.length||h)&&r.push((!n||l||o?e:e.map(n)).join(", ")+" {"+a.join(" ")+"}")}for(let t in e)s(i(t),e[t],this.rules)}getRules(){return this.rules.join("\n")}static newName(){let e=r[i]||1;return r[i]=e+1,"ͼ"+e.toString(36)}static mount(e,t,n){let i=e[s],r=n&&n.nonce;i?r&&i.setNonce(r):i=new l(e,r),i.mount(Array.isArray(t)?t:[t])}}let a=new Map;class l{constructor(e,t){let n=e.ownerDocument||e,i=n.defaultView;if(!e.head&&e.adoptedStyleSheets&&i.CSSStyleSheet){let t=a.get(n);if(t)return e.adoptedStyleSheets=[t.sheet,...e.adoptedStyleSheets],e[s]=t;this.sheet=new i.CSSStyleSheet,e.adoptedStyleSheets=[this.sheet,...e.adoptedStyleSheets],a.set(n,this)}else{this.styleTag=n.createElement("style"),t&&this.styleTag.setAttribute("nonce",t);let i=e.head||e;i.insertBefore(this.styleTag,i.firstChild)}this.modules=[],e[s]=this}mount(e){let t=this.sheet,n=0,i=0;for(let s=0;s-1&&(this.modules.splice(o,1),i--,o=-1),-1==o){if(this.modules.splice(i++,0,r),t)for(let e=0;e 1) {\n\t\t\th -= 1;\n\t\t}\n\t}\n\n\treturn [\n\t\th * 360,\n\t\ts * 100,\n\t\tv * 100\n\t];\n};\n\nconvert.rgb.hwb = function (rgb) {\n\tvar r = rgb[0];\n\tvar g = rgb[1];\n\tvar b = rgb[2];\n\tvar h = convert.rgb.hsl(rgb)[0];\n\tvar w = 1 / 255 * Math.min(r, Math.min(g, b));\n\n\tb = 1 - 1 / 255 * Math.max(r, Math.max(g, b));\n\n\treturn [h, w * 100, b * 100];\n};\n\nconvert.rgb.cmyk = function (rgb) {\n\tvar r = rgb[0] / 255;\n\tvar g = rgb[1] / 255;\n\tvar b = rgb[2] / 255;\n\tvar c;\n\tvar m;\n\tvar y;\n\tvar k;\n\n\tk = Math.min(1 - r, 1 - g, 1 - b);\n\tc = (1 - r - k) / (1 - k) || 0;\n\tm = (1 - g - k) / (1 - k) || 0;\n\ty = (1 - b - k) / (1 - k) || 0;\n\n\treturn [c * 100, m * 100, y * 100, k * 100];\n};\n\n/**\n * See https://en.m.wikipedia.org/wiki/Euclidean_distance#Squared_Euclidean_distance\n * */\nfunction comparativeDistance(x, y) {\n\treturn (\n\t\tMath.pow(x[0] - y[0], 2) +\n\t\tMath.pow(x[1] - y[1], 2) +\n\t\tMath.pow(x[2] - y[2], 2)\n\t);\n}\n\nconvert.rgb.keyword = function (rgb) {\n\tvar reversed = reverseKeywords[rgb];\n\tif (reversed) {\n\t\treturn reversed;\n\t}\n\n\tvar currentClosestDistance = Infinity;\n\tvar currentClosestKeyword;\n\n\tfor (var keyword in cssKeywords) {\n\t\tif (cssKeywords.hasOwnProperty(keyword)) {\n\t\t\tvar value = cssKeywords[keyword];\n\n\t\t\t// Compute comparative distance\n\t\t\tvar distance = comparativeDistance(rgb, value);\n\n\t\t\t// Check if its less, if so set as closest\n\t\t\tif (distance < currentClosestDistance) {\n\t\t\t\tcurrentClosestDistance = distance;\n\t\t\t\tcurrentClosestKeyword = keyword;\n\t\t\t}\n\t\t}\n\t}\n\n\treturn currentClosestKeyword;\n};\n\nconvert.keyword.rgb = function (keyword) {\n\treturn cssKeywords[keyword];\n};\n\nconvert.rgb.xyz = function (rgb) {\n\tvar r = rgb[0] / 255;\n\tvar g = rgb[1] / 255;\n\tvar b = rgb[2] / 255;\n\n\t// assume sRGB\n\tr = r > 0.04045 ? Math.pow(((r + 0.055) / 1.055), 2.4) : (r / 12.92);\n\tg = g > 0.04045 ? Math.pow(((g + 0.055) / 1.055), 2.4) : (g / 12.92);\n\tb = b > 0.04045 ? Math.pow(((b + 0.055) / 1.055), 2.4) : (b / 12.92);\n\n\tvar x = (r * 0.4124) + (g * 0.3576) + (b * 0.1805);\n\tvar y = (r * 0.2126) + (g * 0.7152) + (b * 0.0722);\n\tvar z = (r * 0.0193) + (g * 0.1192) + (b * 0.9505);\n\n\treturn [x * 100, y * 100, z * 100];\n};\n\nconvert.rgb.lab = function (rgb) {\n\tvar xyz = convert.rgb.xyz(rgb);\n\tvar x = xyz[0];\n\tvar y = xyz[1];\n\tvar z = xyz[2];\n\tvar l;\n\tvar a;\n\tvar b;\n\n\tx /= 95.047;\n\ty /= 100;\n\tz /= 108.883;\n\n\tx = x > 0.008856 ? Math.pow(x, 1 / 3) : (7.787 * x) + (16 / 116);\n\ty = y > 0.008856 ? Math.pow(y, 1 / 3) : (7.787 * y) + (16 / 116);\n\tz = z > 0.008856 ? Math.pow(z, 1 / 3) : (7.787 * z) + (16 / 116);\n\n\tl = (116 * y) - 16;\n\ta = 500 * (x - y);\n\tb = 200 * (y - z);\n\n\treturn [l, a, b];\n};\n\nconvert.hsl.rgb = function (hsl) {\n\tvar h = hsl[0] / 360;\n\tvar s = hsl[1] / 100;\n\tvar l = hsl[2] / 100;\n\tvar t1;\n\tvar t2;\n\tvar t3;\n\tvar rgb;\n\tvar val;\n\n\tif (s === 0) {\n\t\tval = l * 255;\n\t\treturn [val, val, val];\n\t}\n\n\tif (l < 0.5) {\n\t\tt2 = l * (1 + s);\n\t} else {\n\t\tt2 = l + s - l * s;\n\t}\n\n\tt1 = 2 * l - t2;\n\n\trgb = [0, 0, 0];\n\tfor (var i = 0; i < 3; i++) {\n\t\tt3 = h + 1 / 3 * -(i - 1);\n\t\tif (t3 < 0) {\n\t\t\tt3++;\n\t\t}\n\t\tif (t3 > 1) {\n\t\t\tt3--;\n\t\t}\n\n\t\tif (6 * t3 < 1) {\n\t\t\tval = t1 + (t2 - t1) * 6 * t3;\n\t\t} else if (2 * t3 < 1) {\n\t\t\tval = t2;\n\t\t} else if (3 * t3 < 2) {\n\t\t\tval = t1 + (t2 - t1) * (2 / 3 - t3) * 6;\n\t\t} else {\n\t\t\tval = t1;\n\t\t}\n\n\t\trgb[i] = val * 255;\n\t}\n\n\treturn rgb;\n};\n\nconvert.hsl.hsv = function (hsl) {\n\tvar h = hsl[0];\n\tvar s = hsl[1] / 100;\n\tvar l = hsl[2] / 100;\n\tvar smin = s;\n\tvar lmin = Math.max(l, 0.01);\n\tvar sv;\n\tvar v;\n\n\tl *= 2;\n\ts *= (l <= 1) ? l : 2 - l;\n\tsmin *= lmin <= 1 ? lmin : 2 - lmin;\n\tv = (l + s) / 2;\n\tsv = l === 0 ? (2 * smin) / (lmin + smin) : (2 * s) / (l + s);\n\n\treturn [h, sv * 100, v * 100];\n};\n\nconvert.hsv.rgb = function (hsv) {\n\tvar h = hsv[0] / 60;\n\tvar s = hsv[1] / 100;\n\tvar v = hsv[2] / 100;\n\tvar hi = Math.floor(h) % 6;\n\n\tvar f = h - Math.floor(h);\n\tvar p = 255 * v * (1 - s);\n\tvar q = 255 * v * (1 - (s * f));\n\tvar t = 255 * v * (1 - (s * (1 - f)));\n\tv *= 255;\n\n\tswitch (hi) {\n\t\tcase 0:\n\t\t\treturn [v, t, p];\n\t\tcase 1:\n\t\t\treturn [q, v, p];\n\t\tcase 2:\n\t\t\treturn [p, v, t];\n\t\tcase 3:\n\t\t\treturn [p, q, v];\n\t\tcase 4:\n\t\t\treturn [t, p, v];\n\t\tcase 5:\n\t\t\treturn [v, p, q];\n\t}\n};\n\nconvert.hsv.hsl = function (hsv) {\n\tvar h = hsv[0];\n\tvar s = hsv[1] / 100;\n\tvar v = hsv[2] / 100;\n\tvar vmin = Math.max(v, 0.01);\n\tvar lmin;\n\tvar sl;\n\tvar l;\n\n\tl = (2 - s) * v;\n\tlmin = (2 - s) * vmin;\n\tsl = s * vmin;\n\tsl /= (lmin <= 1) ? lmin : 2 - lmin;\n\tsl = sl || 0;\n\tl /= 2;\n\n\treturn [h, sl * 100, l * 100];\n};\n\n// http://dev.w3.org/csswg/css-color/#hwb-to-rgb\nconvert.hwb.rgb = function (hwb) {\n\tvar h = hwb[0] / 360;\n\tvar wh = hwb[1] / 100;\n\tvar bl = hwb[2] / 100;\n\tvar ratio = wh + bl;\n\tvar i;\n\tvar v;\n\tvar f;\n\tvar n;\n\n\t// wh + bl cant be > 1\n\tif (ratio > 1) {\n\t\twh /= ratio;\n\t\tbl /= ratio;\n\t}\n\n\ti = Math.floor(6 * h);\n\tv = 1 - bl;\n\tf = 6 * h - i;\n\n\tif ((i & 0x01) !== 0) {\n\t\tf = 1 - f;\n\t}\n\n\tn = wh + f * (v - wh); // linear interpolation\n\n\tvar r;\n\tvar g;\n\tvar b;\n\tswitch (i) {\n\t\tdefault:\n\t\tcase 6:\n\t\tcase 0: r = v; g = n; b = wh; break;\n\t\tcase 1: r = n; g = v; b = wh; break;\n\t\tcase 2: r = wh; g = v; b = n; break;\n\t\tcase 3: r = wh; g = n; b = v; break;\n\t\tcase 4: r = n; g = wh; b = v; break;\n\t\tcase 5: r = v; g = wh; b = n; break;\n\t}\n\n\treturn [r * 255, g * 255, b * 255];\n};\n\nconvert.cmyk.rgb = function (cmyk) {\n\tvar c = cmyk[0] / 100;\n\tvar m = cmyk[1] / 100;\n\tvar y = cmyk[2] / 100;\n\tvar k = cmyk[3] / 100;\n\tvar r;\n\tvar g;\n\tvar b;\n\n\tr = 1 - Math.min(1, c * (1 - k) + k);\n\tg = 1 - Math.min(1, m * (1 - k) + k);\n\tb = 1 - Math.min(1, y * (1 - k) + k);\n\n\treturn [r * 255, g * 255, b * 255];\n};\n\nconvert.xyz.rgb = function (xyz) {\n\tvar x = xyz[0] / 100;\n\tvar y = xyz[1] / 100;\n\tvar z = xyz[2] / 100;\n\tvar r;\n\tvar g;\n\tvar b;\n\n\tr = (x * 3.2406) + (y * -1.5372) + (z * -0.4986);\n\tg = (x * -0.9689) + (y * 1.8758) + (z * 0.0415);\n\tb = (x * 0.0557) + (y * -0.2040) + (z * 1.0570);\n\n\t// assume sRGB\n\tr = r > 0.0031308\n\t\t? ((1.055 * Math.pow(r, 1.0 / 2.4)) - 0.055)\n\t\t: r * 12.92;\n\n\tg = g > 0.0031308\n\t\t? ((1.055 * Math.pow(g, 1.0 / 2.4)) - 0.055)\n\t\t: g * 12.92;\n\n\tb = b > 0.0031308\n\t\t? ((1.055 * Math.pow(b, 1.0 / 2.4)) - 0.055)\n\t\t: b * 12.92;\n\n\tr = Math.min(Math.max(0, r), 1);\n\tg = Math.min(Math.max(0, g), 1);\n\tb = Math.min(Math.max(0, b), 1);\n\n\treturn [r * 255, g * 255, b * 255];\n};\n\nconvert.xyz.lab = function (xyz) {\n\tvar x = xyz[0];\n\tvar y = xyz[1];\n\tvar z = xyz[2];\n\tvar l;\n\tvar a;\n\tvar b;\n\n\tx /= 95.047;\n\ty /= 100;\n\tz /= 108.883;\n\n\tx = x > 0.008856 ? Math.pow(x, 1 / 3) : (7.787 * x) + (16 / 116);\n\ty = y > 0.008856 ? Math.pow(y, 1 / 3) : (7.787 * y) + (16 / 116);\n\tz = z > 0.008856 ? Math.pow(z, 1 / 3) : (7.787 * z) + (16 / 116);\n\n\tl = (116 * y) - 16;\n\ta = 500 * (x - y);\n\tb = 200 * (y - z);\n\n\treturn [l, a, b];\n};\n\nconvert.lab.xyz = function (lab) {\n\tvar l = lab[0];\n\tvar a = lab[1];\n\tvar b = lab[2];\n\tvar x;\n\tvar y;\n\tvar z;\n\n\ty = (l + 16) / 116;\n\tx = a / 500 + y;\n\tz = y - b / 200;\n\n\tvar y2 = Math.pow(y, 3);\n\tvar x2 = Math.pow(x, 3);\n\tvar z2 = Math.pow(z, 3);\n\ty = y2 > 0.008856 ? y2 : (y - 16 / 116) / 7.787;\n\tx = x2 > 0.008856 ? x2 : (x - 16 / 116) / 7.787;\n\tz = z2 > 0.008856 ? z2 : (z - 16 / 116) / 7.787;\n\n\tx *= 95.047;\n\ty *= 100;\n\tz *= 108.883;\n\n\treturn [x, y, z];\n};\n\nconvert.lab.lch = function (lab) {\n\tvar l = lab[0];\n\tvar a = lab[1];\n\tvar b = lab[2];\n\tvar hr;\n\tvar h;\n\tvar c;\n\n\thr = Math.atan2(b, a);\n\th = hr * 360 / 2 / Math.PI;\n\n\tif (h < 0) {\n\t\th += 360;\n\t}\n\n\tc = Math.sqrt(a * a + b * b);\n\n\treturn [l, c, h];\n};\n\nconvert.lch.lab = function (lch) {\n\tvar l = lch[0];\n\tvar c = lch[1];\n\tvar h = lch[2];\n\tvar a;\n\tvar b;\n\tvar hr;\n\n\thr = h / 360 * 2 * Math.PI;\n\ta = c * Math.cos(hr);\n\tb = c * Math.sin(hr);\n\n\treturn [l, a, b];\n};\n\nconvert.rgb.ansi16 = function (args) {\n\tvar r = args[0];\n\tvar g = args[1];\n\tvar b = args[2];\n\tvar value = 1 in arguments ? arguments[1] : convert.rgb.hsv(args)[2]; // hsv -> ansi16 optimization\n\n\tvalue = Math.round(value / 50);\n\n\tif (value === 0) {\n\t\treturn 30;\n\t}\n\n\tvar ansi = 30\n\t\t+ ((Math.round(b / 255) << 2)\n\t\t| (Math.round(g / 255) << 1)\n\t\t| Math.round(r / 255));\n\n\tif (value === 2) {\n\t\tansi += 60;\n\t}\n\n\treturn ansi;\n};\n\nconvert.hsv.ansi16 = function (args) {\n\t// optimization here; we already know the value and don't need to get\n\t// it converted for us.\n\treturn convert.rgb.ansi16(convert.hsv.rgb(args), args[2]);\n};\n\nconvert.rgb.ansi256 = function (args) {\n\tvar r = args[0];\n\tvar g = args[1];\n\tvar b = args[2];\n\n\t// we use the extended greyscale palette here, with the exception of\n\t// black and white. normal palette only has 4 greyscale shades.\n\tif (r === g && g === b) {\n\t\tif (r < 8) {\n\t\t\treturn 16;\n\t\t}\n\n\t\tif (r > 248) {\n\t\t\treturn 231;\n\t\t}\n\n\t\treturn Math.round(((r - 8) / 247) * 24) + 232;\n\t}\n\n\tvar ansi = 16\n\t\t+ (36 * Math.round(r / 255 * 5))\n\t\t+ (6 * Math.round(g / 255 * 5))\n\t\t+ Math.round(b / 255 * 5);\n\n\treturn ansi;\n};\n\nconvert.ansi16.rgb = function (args) {\n\tvar color = args % 10;\n\n\t// handle greyscale\n\tif (color === 0 || color === 7) {\n\t\tif (args > 50) {\n\t\t\tcolor += 3.5;\n\t\t}\n\n\t\tcolor = color / 10.5 * 255;\n\n\t\treturn [color, color, color];\n\t}\n\n\tvar mult = (~~(args > 50) + 1) * 0.5;\n\tvar r = ((color & 1) * mult) * 255;\n\tvar g = (((color >> 1) & 1) * mult) * 255;\n\tvar b = (((color >> 2) & 1) * mult) * 255;\n\n\treturn [r, g, b];\n};\n\nconvert.ansi256.rgb = function (args) {\n\t// handle greyscale\n\tif (args >= 232) {\n\t\tvar c = (args - 232) * 10 + 8;\n\t\treturn [c, c, c];\n\t}\n\n\targs -= 16;\n\n\tvar rem;\n\tvar r = Math.floor(args / 36) / 5 * 255;\n\tvar g = Math.floor((rem = args % 36) / 6) / 5 * 255;\n\tvar b = (rem % 6) / 5 * 255;\n\n\treturn [r, g, b];\n};\n\nconvert.rgb.hex = function (args) {\n\tvar integer = ((Math.round(args[0]) & 0xFF) << 16)\n\t\t+ ((Math.round(args[1]) & 0xFF) << 8)\n\t\t+ (Math.round(args[2]) & 0xFF);\n\n\tvar string = integer.toString(16).toUpperCase();\n\treturn '000000'.substring(string.length) + string;\n};\n\nconvert.hex.rgb = function (args) {\n\tvar match = args.toString(16).match(/[a-f0-9]{6}|[a-f0-9]{3}/i);\n\tif (!match) {\n\t\treturn [0, 0, 0];\n\t}\n\n\tvar colorString = match[0];\n\n\tif (match[0].length === 3) {\n\t\tcolorString = colorString.split('').map(function (char) {\n\t\t\treturn char + char;\n\t\t}).join('');\n\t}\n\n\tvar integer = parseInt(colorString, 16);\n\tvar r = (integer >> 16) & 0xFF;\n\tvar g = (integer >> 8) & 0xFF;\n\tvar b = integer & 0xFF;\n\n\treturn [r, g, b];\n};\n\nconvert.rgb.hcg = function (rgb) {\n\tvar r = rgb[0] / 255;\n\tvar g = rgb[1] / 255;\n\tvar b = rgb[2] / 255;\n\tvar max = Math.max(Math.max(r, g), b);\n\tvar min = Math.min(Math.min(r, g), b);\n\tvar chroma = (max - min);\n\tvar grayscale;\n\tvar hue;\n\n\tif (chroma < 1) {\n\t\tgrayscale = min / (1 - chroma);\n\t} else {\n\t\tgrayscale = 0;\n\t}\n\n\tif (chroma <= 0) {\n\t\thue = 0;\n\t} else\n\tif (max === r) {\n\t\thue = ((g - b) / chroma) % 6;\n\t} else\n\tif (max === g) {\n\t\thue = 2 + (b - r) / chroma;\n\t} else {\n\t\thue = 4 + (r - g) / chroma + 4;\n\t}\n\n\thue /= 6;\n\thue %= 1;\n\n\treturn [hue * 360, chroma * 100, grayscale * 100];\n};\n\nconvert.hsl.hcg = function (hsl) {\n\tvar s = hsl[1] / 100;\n\tvar l = hsl[2] / 100;\n\tvar c = 1;\n\tvar f = 0;\n\n\tif (l < 0.5) {\n\t\tc = 2.0 * s * l;\n\t} else {\n\t\tc = 2.0 * s * (1.0 - l);\n\t}\n\n\tif (c < 1.0) {\n\t\tf = (l - 0.5 * c) / (1.0 - c);\n\t}\n\n\treturn [hsl[0], c * 100, f * 100];\n};\n\nconvert.hsv.hcg = function (hsv) {\n\tvar s = hsv[1] / 100;\n\tvar v = hsv[2] / 100;\n\n\tvar c = s * v;\n\tvar f = 0;\n\n\tif (c < 1.0) {\n\t\tf = (v - c) / (1 - c);\n\t}\n\n\treturn [hsv[0], c * 100, f * 100];\n};\n\nconvert.hcg.rgb = function (hcg) {\n\tvar h = hcg[0] / 360;\n\tvar c = hcg[1] / 100;\n\tvar g = hcg[2] / 100;\n\n\tif (c === 0.0) {\n\t\treturn [g * 255, g * 255, g * 255];\n\t}\n\n\tvar pure = [0, 0, 0];\n\tvar hi = (h % 1) * 6;\n\tvar v = hi % 1;\n\tvar w = 1 - v;\n\tvar mg = 0;\n\n\tswitch (Math.floor(hi)) {\n\t\tcase 0:\n\t\t\tpure[0] = 1; pure[1] = v; pure[2] = 0; break;\n\t\tcase 1:\n\t\t\tpure[0] = w; pure[1] = 1; pure[2] = 0; break;\n\t\tcase 2:\n\t\t\tpure[0] = 0; pure[1] = 1; pure[2] = v; break;\n\t\tcase 3:\n\t\t\tpure[0] = 0; pure[1] = w; pure[2] = 1; break;\n\t\tcase 4:\n\t\t\tpure[0] = v; pure[1] = 0; pure[2] = 1; break;\n\t\tdefault:\n\t\t\tpure[0] = 1; pure[1] = 0; pure[2] = w;\n\t}\n\n\tmg = (1.0 - c) * g;\n\n\treturn [\n\t\t(c * pure[0] + mg) * 255,\n\t\t(c * pure[1] + mg) * 255,\n\t\t(c * pure[2] + mg) * 255\n\t];\n};\n\nconvert.hcg.hsv = function (hcg) {\n\tvar c = hcg[1] / 100;\n\tvar g = hcg[2] / 100;\n\n\tvar v = c + g * (1.0 - c);\n\tvar f = 0;\n\n\tif (v > 0.0) {\n\t\tf = c / v;\n\t}\n\n\treturn [hcg[0], f * 100, v * 100];\n};\n\nconvert.hcg.hsl = function (hcg) {\n\tvar c = hcg[1] / 100;\n\tvar g = hcg[2] / 100;\n\n\tvar l = g * (1.0 - c) + 0.5 * c;\n\tvar s = 0;\n\n\tif (l > 0.0 && l < 0.5) {\n\t\ts = c / (2 * l);\n\t} else\n\tif (l >= 0.5 && l < 1.0) {\n\t\ts = c / (2 * (1 - l));\n\t}\n\n\treturn [hcg[0], s * 100, l * 100];\n};\n\nconvert.hcg.hwb = function (hcg) {\n\tvar c = hcg[1] / 100;\n\tvar g = hcg[2] / 100;\n\tvar v = c + g * (1.0 - c);\n\treturn [hcg[0], (v - c) * 100, (1 - v) * 100];\n};\n\nconvert.hwb.hcg = function (hwb) {\n\tvar w = hwb[1] / 100;\n\tvar b = hwb[2] / 100;\n\tvar v = 1 - b;\n\tvar c = v - w;\n\tvar g = 0;\n\n\tif (c < 1) {\n\t\tg = (v - c) / (1 - c);\n\t}\n\n\treturn [hwb[0], c * 100, g * 100];\n};\n\nconvert.apple.rgb = function (apple) {\n\treturn [(apple[0] / 65535) * 255, (apple[1] / 65535) * 255, (apple[2] / 65535) * 255];\n};\n\nconvert.rgb.apple = function (rgb) {\n\treturn [(rgb[0] / 255) * 65535, (rgb[1] / 255) * 65535, (rgb[2] / 255) * 65535];\n};\n\nconvert.gray.rgb = function (args) {\n\treturn [args[0] / 100 * 255, args[0] / 100 * 255, args[0] / 100 * 255];\n};\n\nconvert.gray.hsl = convert.gray.hsv = function (args) {\n\treturn [0, 0, args[0]];\n};\n\nconvert.gray.hwb = function (gray) {\n\treturn [0, 100, gray[0]];\n};\n\nconvert.gray.cmyk = function (gray) {\n\treturn [0, 0, 0, gray[0]];\n};\n\nconvert.gray.lab = function (gray) {\n\treturn [gray[0], 0, 0];\n};\n\nconvert.gray.hex = function (gray) {\n\tvar val = Math.round(gray[0] / 100 * 255) & 0xFF;\n\tvar integer = (val << 16) + (val << 8) + val;\n\n\tvar string = integer.toString(16).toUpperCase();\n\treturn '000000'.substring(string.length) + string;\n};\n\nconvert.rgb.gray = function (rgb) {\n\tvar val = (rgb[0] + rgb[1] + rgb[2]) / 3;\n\treturn [val / 255 * 100];\n};\n","var conversions = require('./conversions');\nvar route = require('./route');\n\nvar convert = {};\n\nvar models = Object.keys(conversions);\n\nfunction wrapRaw(fn) {\n\tvar wrappedFn = function (args) {\n\t\tif (args === undefined || args === null) {\n\t\t\treturn args;\n\t\t}\n\n\t\tif (arguments.length > 1) {\n\t\t\targs = Array.prototype.slice.call(arguments);\n\t\t}\n\n\t\treturn fn(args);\n\t};\n\n\t// preserve .conversion property if there is one\n\tif ('conversion' in fn) {\n\t\twrappedFn.conversion = fn.conversion;\n\t}\n\n\treturn wrappedFn;\n}\n\nfunction wrapRounded(fn) {\n\tvar wrappedFn = function (args) {\n\t\tif (args === undefined || args === null) {\n\t\t\treturn args;\n\t\t}\n\n\t\tif (arguments.length > 1) {\n\t\t\targs = Array.prototype.slice.call(arguments);\n\t\t}\n\n\t\tvar result = fn(args);\n\n\t\t// we're assuming the result is an array here.\n\t\t// see notice in conversions.js; don't use box types\n\t\t// in conversion functions.\n\t\tif (typeof result === 'object') {\n\t\t\tfor (var len = result.length, i = 0; i < len; i++) {\n\t\t\t\tresult[i] = Math.round(result[i]);\n\t\t\t}\n\t\t}\n\n\t\treturn result;\n\t};\n\n\t// preserve .conversion property if there is one\n\tif ('conversion' in fn) {\n\t\twrappedFn.conversion = fn.conversion;\n\t}\n\n\treturn wrappedFn;\n}\n\nmodels.forEach(function (fromModel) {\n\tconvert[fromModel] = {};\n\n\tObject.defineProperty(convert[fromModel], 'channels', {value: conversions[fromModel].channels});\n\tObject.defineProperty(convert[fromModel], 'labels', {value: conversions[fromModel].labels});\n\n\tvar routes = route(fromModel);\n\tvar routeModels = Object.keys(routes);\n\n\trouteModels.forEach(function (toModel) {\n\t\tvar fn = routes[toModel];\n\n\t\tconvert[fromModel][toModel] = wrapRounded(fn);\n\t\tconvert[fromModel][toModel].raw = wrapRaw(fn);\n\t});\n});\n\nmodule.exports = convert;\n","var conversions = require('./conversions');\n\n/*\n\tthis function routes a model to all other models.\n\n\tall functions that are routed have a property `.conversion` attached\n\tto the returned synthetic function. This property is an array\n\tof strings, each with the steps in between the 'from' and 'to'\n\tcolor models (inclusive).\n\n\tconversions that are not possible simply are not included.\n*/\n\nfunction buildGraph() {\n\tvar graph = {};\n\t// https://jsperf.com/object-keys-vs-for-in-with-closure/3\n\tvar models = Object.keys(conversions);\n\n\tfor (var len = models.length, i = 0; i < len; i++) {\n\t\tgraph[models[i]] = {\n\t\t\t// http://jsperf.com/1-vs-infinity\n\t\t\t// micro-opt, but this is simple.\n\t\t\tdistance: -1,\n\t\t\tparent: null\n\t\t};\n\t}\n\n\treturn graph;\n}\n\n// https://en.wikipedia.org/wiki/Breadth-first_search\nfunction deriveBFS(fromModel) {\n\tvar graph = buildGraph();\n\tvar queue = [fromModel]; // unshift -> queue -> pop\n\n\tgraph[fromModel].distance = 0;\n\n\twhile (queue.length) {\n\t\tvar current = queue.pop();\n\t\tvar adjacents = Object.keys(conversions[current]);\n\n\t\tfor (var len = adjacents.length, i = 0; i < len; i++) {\n\t\t\tvar adjacent = adjacents[i];\n\t\t\tvar node = graph[adjacent];\n\n\t\t\tif (node.distance === -1) {\n\t\t\t\tnode.distance = graph[current].distance + 1;\n\t\t\t\tnode.parent = current;\n\t\t\t\tqueue.unshift(adjacent);\n\t\t\t}\n\t\t}\n\t}\n\n\treturn graph;\n}\n\nfunction link(from, to) {\n\treturn function (args) {\n\t\treturn to(from(args));\n\t};\n}\n\nfunction wrapConversion(toModel, graph) {\n\tvar path = [graph[toModel].parent, toModel];\n\tvar fn = conversions[graph[toModel].parent][toModel];\n\n\tvar cur = graph[toModel].parent;\n\twhile (graph[cur].parent) {\n\t\tpath.unshift(graph[cur].parent);\n\t\tfn = link(conversions[graph[cur].parent][cur], fn);\n\t\tcur = graph[cur].parent;\n\t}\n\n\tfn.conversion = path;\n\treturn fn;\n}\n\nmodule.exports = function (fromModel) {\n\tvar graph = deriveBFS(fromModel);\n\tvar conversion = {};\n\n\tvar models = Object.keys(graph);\n\tfor (var len = models.length, i = 0; i < len; i++) {\n\t\tvar toModel = models[i];\n\t\tvar node = graph[toModel];\n\n\t\tif (node.parent === null) {\n\t\t\t// no possible conversion, or this node is the source model.\n\t\t\tcontinue;\n\t\t}\n\n\t\tconversion[toModel] = wrapConversion(toModel, graph);\n\t}\n\n\treturn conversion;\n};\n\n","'use strict'\r\n\r\nmodule.exports = {\r\n\t\"aliceblue\": [240, 248, 255],\r\n\t\"antiquewhite\": [250, 235, 215],\r\n\t\"aqua\": [0, 255, 255],\r\n\t\"aquamarine\": [127, 255, 212],\r\n\t\"azure\": [240, 255, 255],\r\n\t\"beige\": [245, 245, 220],\r\n\t\"bisque\": [255, 228, 196],\r\n\t\"black\": [0, 0, 0],\r\n\t\"blanchedalmond\": [255, 235, 205],\r\n\t\"blue\": [0, 0, 255],\r\n\t\"blueviolet\": [138, 43, 226],\r\n\t\"brown\": [165, 42, 42],\r\n\t\"burlywood\": [222, 184, 135],\r\n\t\"cadetblue\": [95, 158, 160],\r\n\t\"chartreuse\": [127, 255, 0],\r\n\t\"chocolate\": [210, 105, 30],\r\n\t\"coral\": [255, 127, 80],\r\n\t\"cornflowerblue\": [100, 149, 237],\r\n\t\"cornsilk\": [255, 248, 220],\r\n\t\"crimson\": [220, 20, 60],\r\n\t\"cyan\": [0, 255, 255],\r\n\t\"darkblue\": [0, 0, 139],\r\n\t\"darkcyan\": [0, 139, 139],\r\n\t\"darkgoldenrod\": [184, 134, 11],\r\n\t\"darkgray\": [169, 169, 169],\r\n\t\"darkgreen\": [0, 100, 0],\r\n\t\"darkgrey\": [169, 169, 169],\r\n\t\"darkkhaki\": [189, 183, 107],\r\n\t\"darkmagenta\": [139, 0, 139],\r\n\t\"darkolivegreen\": [85, 107, 47],\r\n\t\"darkorange\": [255, 140, 0],\r\n\t\"darkorchid\": [153, 50, 204],\r\n\t\"darkred\": [139, 0, 0],\r\n\t\"darksalmon\": [233, 150, 122],\r\n\t\"darkseagreen\": [143, 188, 143],\r\n\t\"darkslateblue\": [72, 61, 139],\r\n\t\"darkslategray\": [47, 79, 79],\r\n\t\"darkslategrey\": [47, 79, 79],\r\n\t\"darkturquoise\": [0, 206, 209],\r\n\t\"darkviolet\": [148, 0, 211],\r\n\t\"deeppink\": [255, 20, 147],\r\n\t\"deepskyblue\": [0, 191, 255],\r\n\t\"dimgray\": [105, 105, 105],\r\n\t\"dimgrey\": [105, 105, 105],\r\n\t\"dodgerblue\": [30, 144, 255],\r\n\t\"firebrick\": [178, 34, 34],\r\n\t\"floralwhite\": [255, 250, 240],\r\n\t\"forestgreen\": [34, 139, 34],\r\n\t\"fuchsia\": [255, 0, 255],\r\n\t\"gainsboro\": [220, 220, 220],\r\n\t\"ghostwhite\": [248, 248, 255],\r\n\t\"gold\": [255, 215, 0],\r\n\t\"goldenrod\": [218, 165, 32],\r\n\t\"gray\": [128, 128, 128],\r\n\t\"green\": [0, 128, 0],\r\n\t\"greenyellow\": [173, 255, 47],\r\n\t\"grey\": [128, 128, 128],\r\n\t\"honeydew\": [240, 255, 240],\r\n\t\"hotpink\": [255, 105, 180],\r\n\t\"indianred\": [205, 92, 92],\r\n\t\"indigo\": [75, 0, 130],\r\n\t\"ivory\": [255, 255, 240],\r\n\t\"khaki\": [240, 230, 140],\r\n\t\"lavender\": [230, 230, 250],\r\n\t\"lavenderblush\": [255, 240, 245],\r\n\t\"lawngreen\": [124, 252, 0],\r\n\t\"lemonchiffon\": [255, 250, 205],\r\n\t\"lightblue\": [173, 216, 230],\r\n\t\"lightcoral\": [240, 128, 128],\r\n\t\"lightcyan\": [224, 255, 255],\r\n\t\"lightgoldenrodyellow\": [250, 250, 210],\r\n\t\"lightgray\": [211, 211, 211],\r\n\t\"lightgreen\": [144, 238, 144],\r\n\t\"lightgrey\": [211, 211, 211],\r\n\t\"lightpink\": [255, 182, 193],\r\n\t\"lightsalmon\": [255, 160, 122],\r\n\t\"lightseagreen\": [32, 178, 170],\r\n\t\"lightskyblue\": [135, 206, 250],\r\n\t\"lightslategray\": [119, 136, 153],\r\n\t\"lightslategrey\": [119, 136, 153],\r\n\t\"lightsteelblue\": [176, 196, 222],\r\n\t\"lightyellow\": [255, 255, 224],\r\n\t\"lime\": [0, 255, 0],\r\n\t\"limegreen\": [50, 205, 50],\r\n\t\"linen\": [250, 240, 230],\r\n\t\"magenta\": [255, 0, 255],\r\n\t\"maroon\": [128, 0, 0],\r\n\t\"mediumaquamarine\": [102, 205, 170],\r\n\t\"mediumblue\": [0, 0, 205],\r\n\t\"mediumorchid\": [186, 85, 211],\r\n\t\"mediumpurple\": [147, 112, 219],\r\n\t\"mediumseagreen\": [60, 179, 113],\r\n\t\"mediumslateblue\": [123, 104, 238],\r\n\t\"mediumspringgreen\": [0, 250, 154],\r\n\t\"mediumturquoise\": [72, 209, 204],\r\n\t\"mediumvioletred\": [199, 21, 133],\r\n\t\"midnightblue\": [25, 25, 112],\r\n\t\"mintcream\": [245, 255, 250],\r\n\t\"mistyrose\": [255, 228, 225],\r\n\t\"moccasin\": [255, 228, 181],\r\n\t\"navajowhite\": [255, 222, 173],\r\n\t\"navy\": [0, 0, 128],\r\n\t\"oldlace\": [253, 245, 230],\r\n\t\"olive\": [128, 128, 0],\r\n\t\"olivedrab\": [107, 142, 35],\r\n\t\"orange\": [255, 165, 0],\r\n\t\"orangered\": [255, 69, 0],\r\n\t\"orchid\": [218, 112, 214],\r\n\t\"palegoldenrod\": [238, 232, 170],\r\n\t\"palegreen\": [152, 251, 152],\r\n\t\"paleturquoise\": [175, 238, 238],\r\n\t\"palevioletred\": [219, 112, 147],\r\n\t\"papayawhip\": [255, 239, 213],\r\n\t\"peachpuff\": [255, 218, 185],\r\n\t\"peru\": [205, 133, 63],\r\n\t\"pink\": [255, 192, 203],\r\n\t\"plum\": [221, 160, 221],\r\n\t\"powderblue\": [176, 224, 230],\r\n\t\"purple\": [128, 0, 128],\r\n\t\"rebeccapurple\": [102, 51, 153],\r\n\t\"red\": [255, 0, 0],\r\n\t\"rosybrown\": [188, 143, 143],\r\n\t\"royalblue\": [65, 105, 225],\r\n\t\"saddlebrown\": [139, 69, 19],\r\n\t\"salmon\": [250, 128, 114],\r\n\t\"sandybrown\": [244, 164, 96],\r\n\t\"seagreen\": [46, 139, 87],\r\n\t\"seashell\": [255, 245, 238],\r\n\t\"sienna\": [160, 82, 45],\r\n\t\"silver\": [192, 192, 192],\r\n\t\"skyblue\": [135, 206, 235],\r\n\t\"slateblue\": [106, 90, 205],\r\n\t\"slategray\": [112, 128, 144],\r\n\t\"slategrey\": [112, 128, 144],\r\n\t\"snow\": [255, 250, 250],\r\n\t\"springgreen\": [0, 255, 127],\r\n\t\"steelblue\": [70, 130, 180],\r\n\t\"tan\": [210, 180, 140],\r\n\t\"teal\": [0, 128, 128],\r\n\t\"thistle\": [216, 191, 216],\r\n\t\"tomato\": [255, 99, 71],\r\n\t\"turquoise\": [64, 224, 208],\r\n\t\"violet\": [238, 130, 238],\r\n\t\"wheat\": [245, 222, 179],\r\n\t\"white\": [255, 255, 255],\r\n\t\"whitesmoke\": [245, 245, 245],\r\n\t\"yellow\": [255, 255, 0],\r\n\t\"yellowgreen\": [154, 205, 50]\r\n};\r\n","/* MIT license */\nvar colorNames = require('color-name');\nvar swizzle = require('simple-swizzle');\nvar hasOwnProperty = Object.hasOwnProperty;\n\nvar reverseNames = Object.create(null);\n\n// create a list of reverse color names\nfor (var name in colorNames) {\n\tif (hasOwnProperty.call(colorNames, name)) {\n\t\treverseNames[colorNames[name]] = name;\n\t}\n}\n\nvar cs = module.exports = {\n\tto: {},\n\tget: {}\n};\n\ncs.get = function (string) {\n\tvar prefix = string.substring(0, 3).toLowerCase();\n\tvar val;\n\tvar model;\n\tswitch (prefix) {\n\t\tcase 'hsl':\n\t\t\tval = cs.get.hsl(string);\n\t\t\tmodel = 'hsl';\n\t\t\tbreak;\n\t\tcase 'hwb':\n\t\t\tval = cs.get.hwb(string);\n\t\t\tmodel = 'hwb';\n\t\t\tbreak;\n\t\tdefault:\n\t\t\tval = cs.get.rgb(string);\n\t\t\tmodel = 'rgb';\n\t\t\tbreak;\n\t}\n\n\tif (!val) {\n\t\treturn null;\n\t}\n\n\treturn {model: model, value: val};\n};\n\ncs.get.rgb = function (string) {\n\tif (!string) {\n\t\treturn null;\n\t}\n\n\tvar abbr = /^#([a-f0-9]{3,4})$/i;\n\tvar hex = /^#([a-f0-9]{6})([a-f0-9]{2})?$/i;\n\tvar rgba = /^rgba?\\(\\s*([+-]?\\d+)(?=[\\s,])\\s*(?:,\\s*)?([+-]?\\d+)(?=[\\s,])\\s*(?:,\\s*)?([+-]?\\d+)\\s*(?:[,|\\/]\\s*([+-]?[\\d\\.]+)(%?)\\s*)?\\)$/;\n\tvar per = /^rgba?\\(\\s*([+-]?[\\d\\.]+)\\%\\s*,?\\s*([+-]?[\\d\\.]+)\\%\\s*,?\\s*([+-]?[\\d\\.]+)\\%\\s*(?:[,|\\/]\\s*([+-]?[\\d\\.]+)(%?)\\s*)?\\)$/;\n\tvar keyword = /^(\\w+)$/;\n\n\tvar rgb = [0, 0, 0, 1];\n\tvar match;\n\tvar i;\n\tvar hexAlpha;\n\n\tif (match = string.match(hex)) {\n\t\thexAlpha = match[2];\n\t\tmatch = match[1];\n\n\t\tfor (i = 0; i < 3; i++) {\n\t\t\t// https://jsperf.com/slice-vs-substr-vs-substring-methods-long-string/19\n\t\t\tvar i2 = i * 2;\n\t\t\trgb[i] = parseInt(match.slice(i2, i2 + 2), 16);\n\t\t}\n\n\t\tif (hexAlpha) {\n\t\t\trgb[3] = parseInt(hexAlpha, 16) / 255;\n\t\t}\n\t} else if (match = string.match(abbr)) {\n\t\tmatch = match[1];\n\t\thexAlpha = match[3];\n\n\t\tfor (i = 0; i < 3; i++) {\n\t\t\trgb[i] = parseInt(match[i] + match[i], 16);\n\t\t}\n\n\t\tif (hexAlpha) {\n\t\t\trgb[3] = parseInt(hexAlpha + hexAlpha, 16) / 255;\n\t\t}\n\t} else if (match = string.match(rgba)) {\n\t\tfor (i = 0; i < 3; i++) {\n\t\t\trgb[i] = parseInt(match[i + 1], 0);\n\t\t}\n\n\t\tif (match[4]) {\n\t\t\tif (match[5]) {\n\t\t\t\trgb[3] = parseFloat(match[4]) * 0.01;\n\t\t\t} else {\n\t\t\t\trgb[3] = parseFloat(match[4]);\n\t\t\t}\n\t\t}\n\t} else if (match = string.match(per)) {\n\t\tfor (i = 0; i < 3; i++) {\n\t\t\trgb[i] = Math.round(parseFloat(match[i + 1]) * 2.55);\n\t\t}\n\n\t\tif (match[4]) {\n\t\t\tif (match[5]) {\n\t\t\t\trgb[3] = parseFloat(match[4]) * 0.01;\n\t\t\t} else {\n\t\t\t\trgb[3] = parseFloat(match[4]);\n\t\t\t}\n\t\t}\n\t} else if (match = string.match(keyword)) {\n\t\tif (match[1] === 'transparent') {\n\t\t\treturn [0, 0, 0, 0];\n\t\t}\n\n\t\tif (!hasOwnProperty.call(colorNames, match[1])) {\n\t\t\treturn null;\n\t\t}\n\n\t\trgb = colorNames[match[1]];\n\t\trgb[3] = 1;\n\n\t\treturn rgb;\n\t} else {\n\t\treturn null;\n\t}\n\n\tfor (i = 0; i < 3; i++) {\n\t\trgb[i] = clamp(rgb[i], 0, 255);\n\t}\n\trgb[3] = clamp(rgb[3], 0, 1);\n\n\treturn rgb;\n};\n\ncs.get.hsl = function (string) {\n\tif (!string) {\n\t\treturn null;\n\t}\n\n\tvar hsl = /^hsla?\\(\\s*([+-]?(?:\\d{0,3}\\.)?\\d+)(?:deg)?\\s*,?\\s*([+-]?[\\d\\.]+)%\\s*,?\\s*([+-]?[\\d\\.]+)%\\s*(?:[,|\\/]\\s*([+-]?(?=\\.\\d|\\d)(?:0|[1-9]\\d*)?(?:\\.\\d*)?(?:[eE][+-]?\\d+)?)\\s*)?\\)$/;\n\tvar match = string.match(hsl);\n\n\tif (match) {\n\t\tvar alpha = parseFloat(match[4]);\n\t\tvar h = ((parseFloat(match[1]) % 360) + 360) % 360;\n\t\tvar s = clamp(parseFloat(match[2]), 0, 100);\n\t\tvar l = clamp(parseFloat(match[3]), 0, 100);\n\t\tvar a = clamp(isNaN(alpha) ? 1 : alpha, 0, 1);\n\n\t\treturn [h, s, l, a];\n\t}\n\n\treturn null;\n};\n\ncs.get.hwb = function (string) {\n\tif (!string) {\n\t\treturn null;\n\t}\n\n\tvar hwb = /^hwb\\(\\s*([+-]?\\d{0,3}(?:\\.\\d+)?)(?:deg)?\\s*,\\s*([+-]?[\\d\\.]+)%\\s*,\\s*([+-]?[\\d\\.]+)%\\s*(?:,\\s*([+-]?(?=\\.\\d|\\d)(?:0|[1-9]\\d*)?(?:\\.\\d*)?(?:[eE][+-]?\\d+)?)\\s*)?\\)$/;\n\tvar match = string.match(hwb);\n\n\tif (match) {\n\t\tvar alpha = parseFloat(match[4]);\n\t\tvar h = ((parseFloat(match[1]) % 360) + 360) % 360;\n\t\tvar w = clamp(parseFloat(match[2]), 0, 100);\n\t\tvar b = clamp(parseFloat(match[3]), 0, 100);\n\t\tvar a = clamp(isNaN(alpha) ? 1 : alpha, 0, 1);\n\t\treturn [h, w, b, a];\n\t}\n\n\treturn null;\n};\n\ncs.to.hex = function () {\n\tvar rgba = swizzle(arguments);\n\n\treturn (\n\t\t'#' +\n\t\thexDouble(rgba[0]) +\n\t\thexDouble(rgba[1]) +\n\t\thexDouble(rgba[2]) +\n\t\t(rgba[3] < 1\n\t\t\t? (hexDouble(Math.round(rgba[3] * 255)))\n\t\t\t: '')\n\t);\n};\n\ncs.to.rgb = function () {\n\tvar rgba = swizzle(arguments);\n\n\treturn rgba.length < 4 || rgba[3] === 1\n\t\t? 'rgb(' + Math.round(rgba[0]) + ', ' + Math.round(rgba[1]) + ', ' + Math.round(rgba[2]) + ')'\n\t\t: 'rgba(' + Math.round(rgba[0]) + ', ' + Math.round(rgba[1]) + ', ' + Math.round(rgba[2]) + ', ' + rgba[3] + ')';\n};\n\ncs.to.rgb.percent = function () {\n\tvar rgba = swizzle(arguments);\n\n\tvar r = Math.round(rgba[0] / 255 * 100);\n\tvar g = Math.round(rgba[1] / 255 * 100);\n\tvar b = Math.round(rgba[2] / 255 * 100);\n\n\treturn rgba.length < 4 || rgba[3] === 1\n\t\t? 'rgb(' + r + '%, ' + g + '%, ' + b + '%)'\n\t\t: 'rgba(' + r + '%, ' + g + '%, ' + b + '%, ' + rgba[3] + ')';\n};\n\ncs.to.hsl = function () {\n\tvar hsla = swizzle(arguments);\n\treturn hsla.length < 4 || hsla[3] === 1\n\t\t? 'hsl(' + hsla[0] + ', ' + hsla[1] + '%, ' + hsla[2] + '%)'\n\t\t: 'hsla(' + hsla[0] + ', ' + hsla[1] + '%, ' + hsla[2] + '%, ' + hsla[3] + ')';\n};\n\n// hwb is a bit different than rgb(a) & hsl(a) since there is no alpha specific syntax\n// (hwb have alpha optional & 1 is default value)\ncs.to.hwb = function () {\n\tvar hwba = swizzle(arguments);\n\n\tvar a = '';\n\tif (hwba.length >= 4 && hwba[3] !== 1) {\n\t\ta = ', ' + hwba[3];\n\t}\n\n\treturn 'hwb(' + hwba[0] + ', ' + hwba[1] + '%, ' + hwba[2] + '%' + a + ')';\n};\n\ncs.to.keyword = function (rgb) {\n\treturn reverseNames[rgb.slice(0, 3)];\n};\n\n// helpers\nfunction clamp(num, min, max) {\n\treturn Math.min(Math.max(min, num), max);\n}\n\nfunction hexDouble(num) {\n\tvar str = Math.round(num).toString(16).toUpperCase();\n\treturn (str.length < 2) ? '0' + str : str;\n}\n","'use strict';\n\nvar colorString = require('color-string');\nvar convert = require('color-convert');\n\nvar _slice = [].slice;\n\nvar skippedModels = [\n\t// to be honest, I don't really feel like keyword belongs in color convert, but eh.\n\t'keyword',\n\n\t// gray conflicts with some method names, and has its own method defined.\n\t'gray',\n\n\t// shouldn't really be in color-convert either...\n\t'hex'\n];\n\nvar hashedModelKeys = {};\nObject.keys(convert).forEach(function (model) {\n\thashedModelKeys[_slice.call(convert[model].labels).sort().join('')] = model;\n});\n\nvar limiters = {};\n\nfunction Color(obj, model) {\n\tif (!(this instanceof Color)) {\n\t\treturn new Color(obj, model);\n\t}\n\n\tif (model && model in skippedModels) {\n\t\tmodel = null;\n\t}\n\n\tif (model && !(model in convert)) {\n\t\tthrow new Error('Unknown model: ' + model);\n\t}\n\n\tvar i;\n\tvar channels;\n\n\tif (obj == null) { // eslint-disable-line no-eq-null,eqeqeq\n\t\tthis.model = 'rgb';\n\t\tthis.color = [0, 0, 0];\n\t\tthis.valpha = 1;\n\t} else if (obj instanceof Color) {\n\t\tthis.model = obj.model;\n\t\tthis.color = obj.color.slice();\n\t\tthis.valpha = obj.valpha;\n\t} else if (typeof obj === 'string') {\n\t\tvar result = colorString.get(obj);\n\t\tif (result === null) {\n\t\t\tthrow new Error('Unable to parse color from string: ' + obj);\n\t\t}\n\n\t\tthis.model = result.model;\n\t\tchannels = convert[this.model].channels;\n\t\tthis.color = result.value.slice(0, channels);\n\t\tthis.valpha = typeof result.value[channels] === 'number' ? result.value[channels] : 1;\n\t} else if (obj.length) {\n\t\tthis.model = model || 'rgb';\n\t\tchannels = convert[this.model].channels;\n\t\tvar newArr = _slice.call(obj, 0, channels);\n\t\tthis.color = zeroArray(newArr, channels);\n\t\tthis.valpha = typeof obj[channels] === 'number' ? obj[channels] : 1;\n\t} else if (typeof obj === 'number') {\n\t\t// this is always RGB - can be converted later on.\n\t\tobj &= 0xFFFFFF;\n\t\tthis.model = 'rgb';\n\t\tthis.color = [\n\t\t\t(obj >> 16) & 0xFF,\n\t\t\t(obj >> 8) & 0xFF,\n\t\t\tobj & 0xFF\n\t\t];\n\t\tthis.valpha = 1;\n\t} else {\n\t\tthis.valpha = 1;\n\n\t\tvar keys = Object.keys(obj);\n\t\tif ('alpha' in obj) {\n\t\t\tkeys.splice(keys.indexOf('alpha'), 1);\n\t\t\tthis.valpha = typeof obj.alpha === 'number' ? obj.alpha : 0;\n\t\t}\n\n\t\tvar hashedKeys = keys.sort().join('');\n\t\tif (!(hashedKeys in hashedModelKeys)) {\n\t\t\tthrow new Error('Unable to parse color from object: ' + JSON.stringify(obj));\n\t\t}\n\n\t\tthis.model = hashedModelKeys[hashedKeys];\n\n\t\tvar labels = convert[this.model].labels;\n\t\tvar color = [];\n\t\tfor (i = 0; i < labels.length; i++) {\n\t\t\tcolor.push(obj[labels[i]]);\n\t\t}\n\n\t\tthis.color = zeroArray(color);\n\t}\n\n\t// perform limitations (clamping, etc.)\n\tif (limiters[this.model]) {\n\t\tchannels = convert[this.model].channels;\n\t\tfor (i = 0; i < channels; i++) {\n\t\t\tvar limit = limiters[this.model][i];\n\t\t\tif (limit) {\n\t\t\t\tthis.color[i] = limit(this.color[i]);\n\t\t\t}\n\t\t}\n\t}\n\n\tthis.valpha = Math.max(0, Math.min(1, this.valpha));\n\n\tif (Object.freeze) {\n\t\tObject.freeze(this);\n\t}\n}\n\nColor.prototype = {\n\ttoString: function () {\n\t\treturn this.string();\n\t},\n\n\ttoJSON: function () {\n\t\treturn this[this.model]();\n\t},\n\n\tstring: function (places) {\n\t\tvar self = this.model in colorString.to ? this : this.rgb();\n\t\tself = self.round(typeof places === 'number' ? places : 1);\n\t\tvar args = self.valpha === 1 ? self.color : self.color.concat(this.valpha);\n\t\treturn colorString.to[self.model](args);\n\t},\n\n\tpercentString: function (places) {\n\t\tvar self = this.rgb().round(typeof places === 'number' ? places : 1);\n\t\tvar args = self.valpha === 1 ? self.color : self.color.concat(this.valpha);\n\t\treturn colorString.to.rgb.percent(args);\n\t},\n\n\tarray: function () {\n\t\treturn this.valpha === 1 ? this.color.slice() : this.color.concat(this.valpha);\n\t},\n\n\tobject: function () {\n\t\tvar result = {};\n\t\tvar channels = convert[this.model].channels;\n\t\tvar labels = convert[this.model].labels;\n\n\t\tfor (var i = 0; i < channels; i++) {\n\t\t\tresult[labels[i]] = this.color[i];\n\t\t}\n\n\t\tif (this.valpha !== 1) {\n\t\t\tresult.alpha = this.valpha;\n\t\t}\n\n\t\treturn result;\n\t},\n\n\tunitArray: function () {\n\t\tvar rgb = this.rgb().color;\n\t\trgb[0] /= 255;\n\t\trgb[1] /= 255;\n\t\trgb[2] /= 255;\n\n\t\tif (this.valpha !== 1) {\n\t\t\trgb.push(this.valpha);\n\t\t}\n\n\t\treturn rgb;\n\t},\n\n\tunitObject: function () {\n\t\tvar rgb = this.rgb().object();\n\t\trgb.r /= 255;\n\t\trgb.g /= 255;\n\t\trgb.b /= 255;\n\n\t\tif (this.valpha !== 1) {\n\t\t\trgb.alpha = this.valpha;\n\t\t}\n\n\t\treturn rgb;\n\t},\n\n\tround: function (places) {\n\t\tplaces = Math.max(places || 0, 0);\n\t\treturn new Color(this.color.map(roundToPlace(places)).concat(this.valpha), this.model);\n\t},\n\n\talpha: function (val) {\n\t\tif (arguments.length) {\n\t\t\treturn new Color(this.color.concat(Math.max(0, Math.min(1, val))), this.model);\n\t\t}\n\n\t\treturn this.valpha;\n\t},\n\n\t// rgb\n\tred: getset('rgb', 0, maxfn(255)),\n\tgreen: getset('rgb', 1, maxfn(255)),\n\tblue: getset('rgb', 2, maxfn(255)),\n\n\thue: getset(['hsl', 'hsv', 'hsl', 'hwb', 'hcg'], 0, function (val) { return ((val % 360) + 360) % 360; }), // eslint-disable-line brace-style\n\n\tsaturationl: getset('hsl', 1, maxfn(100)),\n\tlightness: getset('hsl', 2, maxfn(100)),\n\n\tsaturationv: getset('hsv', 1, maxfn(100)),\n\tvalue: getset('hsv', 2, maxfn(100)),\n\n\tchroma: getset('hcg', 1, maxfn(100)),\n\tgray: getset('hcg', 2, maxfn(100)),\n\n\twhite: getset('hwb', 1, maxfn(100)),\n\twblack: getset('hwb', 2, maxfn(100)),\n\n\tcyan: getset('cmyk', 0, maxfn(100)),\n\tmagenta: getset('cmyk', 1, maxfn(100)),\n\tyellow: getset('cmyk', 2, maxfn(100)),\n\tblack: getset('cmyk', 3, maxfn(100)),\n\n\tx: getset('xyz', 0, maxfn(100)),\n\ty: getset('xyz', 1, maxfn(100)),\n\tz: getset('xyz', 2, maxfn(100)),\n\n\tl: getset('lab', 0, maxfn(100)),\n\ta: getset('lab', 1),\n\tb: getset('lab', 2),\n\n\tkeyword: function (val) {\n\t\tif (arguments.length) {\n\t\t\treturn new Color(val);\n\t\t}\n\n\t\treturn convert[this.model].keyword(this.color);\n\t},\n\n\thex: function (val) {\n\t\tif (arguments.length) {\n\t\t\treturn new Color(val);\n\t\t}\n\n\t\treturn colorString.to.hex(this.rgb().round().color);\n\t},\n\n\trgbNumber: function () {\n\t\tvar rgb = this.rgb().color;\n\t\treturn ((rgb[0] & 0xFF) << 16) | ((rgb[1] & 0xFF) << 8) | (rgb[2] & 0xFF);\n\t},\n\n\tluminosity: function () {\n\t\t// http://www.w3.org/TR/WCAG20/#relativeluminancedef\n\t\tvar rgb = this.rgb().color;\n\n\t\tvar lum = [];\n\t\tfor (var i = 0; i < rgb.length; i++) {\n\t\t\tvar chan = rgb[i] / 255;\n\t\t\tlum[i] = (chan <= 0.03928) ? chan / 12.92 : Math.pow(((chan + 0.055) / 1.055), 2.4);\n\t\t}\n\n\t\treturn 0.2126 * lum[0] + 0.7152 * lum[1] + 0.0722 * lum[2];\n\t},\n\n\tcontrast: function (color2) {\n\t\t// http://www.w3.org/TR/WCAG20/#contrast-ratiodef\n\t\tvar lum1 = this.luminosity();\n\t\tvar lum2 = color2.luminosity();\n\n\t\tif (lum1 > lum2) {\n\t\t\treturn (lum1 + 0.05) / (lum2 + 0.05);\n\t\t}\n\n\t\treturn (lum2 + 0.05) / (lum1 + 0.05);\n\t},\n\n\tlevel: function (color2) {\n\t\tvar contrastRatio = this.contrast(color2);\n\t\tif (contrastRatio >= 7.1) {\n\t\t\treturn 'AAA';\n\t\t}\n\n\t\treturn (contrastRatio >= 4.5) ? 'AA' : '';\n\t},\n\n\tisDark: function () {\n\t\t// YIQ equation from http://24ways.org/2010/calculating-color-contrast\n\t\tvar rgb = this.rgb().color;\n\t\tvar yiq = (rgb[0] * 299 + rgb[1] * 587 + rgb[2] * 114) / 1000;\n\t\treturn yiq < 128;\n\t},\n\n\tisLight: function () {\n\t\treturn !this.isDark();\n\t},\n\n\tnegate: function () {\n\t\tvar rgb = this.rgb();\n\t\tfor (var i = 0; i < 3; i++) {\n\t\t\trgb.color[i] = 255 - rgb.color[i];\n\t\t}\n\t\treturn rgb;\n\t},\n\n\tlighten: function (ratio) {\n\t\tvar hsl = this.hsl();\n\t\thsl.color[2] += hsl.color[2] * ratio;\n\t\treturn hsl;\n\t},\n\n\tdarken: function (ratio) {\n\t\tvar hsl = this.hsl();\n\t\thsl.color[2] -= hsl.color[2] * ratio;\n\t\treturn hsl;\n\t},\n\n\tsaturate: function (ratio) {\n\t\tvar hsl = this.hsl();\n\t\thsl.color[1] += hsl.color[1] * ratio;\n\t\treturn hsl;\n\t},\n\n\tdesaturate: function (ratio) {\n\t\tvar hsl = this.hsl();\n\t\thsl.color[1] -= hsl.color[1] * ratio;\n\t\treturn hsl;\n\t},\n\n\twhiten: function (ratio) {\n\t\tvar hwb = this.hwb();\n\t\thwb.color[1] += hwb.color[1] * ratio;\n\t\treturn hwb;\n\t},\n\n\tblacken: function (ratio) {\n\t\tvar hwb = this.hwb();\n\t\thwb.color[2] += hwb.color[2] * ratio;\n\t\treturn hwb;\n\t},\n\n\tgrayscale: function () {\n\t\t// http://en.wikipedia.org/wiki/Grayscale#Converting_color_to_grayscale\n\t\tvar rgb = this.rgb().color;\n\t\tvar val = rgb[0] * 0.3 + rgb[1] * 0.59 + rgb[2] * 0.11;\n\t\treturn Color.rgb(val, val, val);\n\t},\n\n\tfade: function (ratio) {\n\t\treturn this.alpha(this.valpha - (this.valpha * ratio));\n\t},\n\n\topaquer: function (ratio) {\n\t\treturn this.alpha(this.valpha + (this.valpha * ratio));\n\t},\n\n\trotate: function (degrees) {\n\t\tvar hsl = this.hsl();\n\t\tvar hue = hsl.color[0];\n\t\thue = (hue + degrees) % 360;\n\t\thue = hue < 0 ? 360 + hue : hue;\n\t\thsl.color[0] = hue;\n\t\treturn hsl;\n\t},\n\n\tmix: function (mixinColor, weight) {\n\t\t// ported from sass implementation in C\n\t\t// https://github.com/sass/libsass/blob/0e6b4a2850092356aa3ece07c6b249f0221caced/functions.cpp#L209\n\t\tif (!mixinColor || !mixinColor.rgb) {\n\t\t\tthrow new Error('Argument to \"mix\" was not a Color instance, but rather an instance of ' + typeof mixinColor);\n\t\t}\n\t\tvar color1 = mixinColor.rgb();\n\t\tvar color2 = this.rgb();\n\t\tvar p = weight === undefined ? 0.5 : weight;\n\n\t\tvar w = 2 * p - 1;\n\t\tvar a = color1.alpha() - color2.alpha();\n\n\t\tvar w1 = (((w * a === -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0;\n\t\tvar w2 = 1 - w1;\n\n\t\treturn Color.rgb(\n\t\t\t\tw1 * color1.red() + w2 * color2.red(),\n\t\t\t\tw1 * color1.green() + w2 * color2.green(),\n\t\t\t\tw1 * color1.blue() + w2 * color2.blue(),\n\t\t\t\tcolor1.alpha() * p + color2.alpha() * (1 - p));\n\t}\n};\n\n// model conversion methods and static constructors\nObject.keys(convert).forEach(function (model) {\n\tif (skippedModels.indexOf(model) !== -1) {\n\t\treturn;\n\t}\n\n\tvar channels = convert[model].channels;\n\n\t// conversion methods\n\tColor.prototype[model] = function () {\n\t\tif (this.model === model) {\n\t\t\treturn new Color(this);\n\t\t}\n\n\t\tif (arguments.length) {\n\t\t\treturn new Color(arguments, model);\n\t\t}\n\n\t\tvar newAlpha = typeof arguments[channels] === 'number' ? channels : this.valpha;\n\t\treturn new Color(assertArray(convert[this.model][model].raw(this.color)).concat(newAlpha), model);\n\t};\n\n\t// 'static' construction methods\n\tColor[model] = function (color) {\n\t\tif (typeof color === 'number') {\n\t\t\tcolor = zeroArray(_slice.call(arguments), channels);\n\t\t}\n\t\treturn new Color(color, model);\n\t};\n});\n\nfunction roundTo(num, places) {\n\treturn Number(num.toFixed(places));\n}\n\nfunction roundToPlace(places) {\n\treturn function (num) {\n\t\treturn roundTo(num, places);\n\t};\n}\n\nfunction getset(model, channel, modifier) {\n\tmodel = Array.isArray(model) ? model : [model];\n\n\tmodel.forEach(function (m) {\n\t\t(limiters[m] || (limiters[m] = []))[channel] = modifier;\n\t});\n\n\tmodel = model[0];\n\n\treturn function (val) {\n\t\tvar result;\n\n\t\tif (arguments.length) {\n\t\t\tif (modifier) {\n\t\t\t\tval = modifier(val);\n\t\t\t}\n\n\t\t\tresult = this[model]();\n\t\t\tresult.color[channel] = val;\n\t\t\treturn result;\n\t\t}\n\n\t\tresult = this[model]().color[channel];\n\t\tif (modifier) {\n\t\t\tresult = modifier(result);\n\t\t}\n\n\t\treturn result;\n\t};\n}\n\nfunction maxfn(max) {\n\treturn function (v) {\n\t\treturn Math.max(0, Math.min(max, v));\n\t};\n}\n\nfunction assertArray(val) {\n\treturn Array.isArray(val) ? val : [val];\n}\n\nfunction zeroArray(arr, length) {\n\tfor (var i = 0; i < length; i++) {\n\t\tif (typeof arr[i] !== 'number') {\n\t\t\tarr[i] = 0;\n\t\t}\n\t}\n\n\treturn arr;\n}\n\nmodule.exports = Color;\n","/**\n * The unique id is used for unique hashes.\n */\nlet uniqueId = 0;\n/**\n * Quick dictionary lookup for unit-less numbers.\n */\nconst CSS_NUMBER = Object.create(null);\n/**\n * CSS properties that are valid unit-less numbers.\n *\n * Ref: https://github.com/facebook/react/blob/master/packages/react-dom/src/shared/CSSProperty.js\n */\nconst CSS_NUMBER_KEYS = [\n \"animation-iteration-count\",\n \"border-image-outset\",\n \"border-image-slice\",\n \"border-image-width\",\n \"box-flex\",\n \"box-flex-group\",\n \"box-ordinal-group\",\n \"column-count\",\n \"columns\",\n \"counter-increment\",\n \"counter-reset\",\n \"flex\",\n \"flex-grow\",\n \"flex-positive\",\n \"flex-shrink\",\n \"flex-negative\",\n \"flex-order\",\n \"font-weight\",\n \"grid-area\",\n \"grid-column\",\n \"grid-column-end\",\n \"grid-column-span\",\n \"grid-column-start\",\n \"grid-row\",\n \"grid-row-end\",\n \"grid-row-span\",\n \"grid-row-start\",\n \"line-clamp\",\n \"line-height\",\n \"opacity\",\n \"order\",\n \"orphans\",\n \"tab-size\",\n \"widows\",\n \"z-index\",\n \"zoom\",\n // SVG properties.\n \"fill-opacity\",\n \"flood-opacity\",\n \"stop-opacity\",\n \"stroke-dasharray\",\n \"stroke-dashoffset\",\n \"stroke-miterlimit\",\n \"stroke-opacity\",\n \"stroke-width\"\n];\n// Add vendor prefixes to all unit-less properties.\nfor (const property of CSS_NUMBER_KEYS) {\n for (const prefix of [\"-webkit-\", \"-ms-\", \"-moz-\", \"-o-\", \"\"]) {\n CSS_NUMBER[prefix + property] = true;\n }\n}\n/**\n * Escape a CSS class name.\n */\nfunction escape(str) {\n return str.replace(/[ !#$%&()*+,./;<=>?@[\\]^`{|}~\"'\\\\]/g, \"\\\\$&\");\n}\n/**\n * Transform a JavaScript property into a CSS property.\n */\nfunction hyphenate(propertyName) {\n return propertyName\n .replace(/[A-Z]/g, (m) => `-${m.toLowerCase()}`)\n .replace(/^ms-/, \"-ms-\"); // Internet Explorer vendor prefix.\n}\n/**\n * Generate a hash value from a string.\n */\nfunction stringHash(str) {\n let value = 5381;\n let len = str.length;\n while (len--)\n value = (value * 33) ^ str.charCodeAt(len);\n return (value >>> 0).toString(36);\n}\n/**\n * Transform a style string to a CSS string.\n */\nfunction styleToString(key, value) {\n if (value && typeof value === \"number\" && !CSS_NUMBER[key]) {\n return `${key}:${value}px`;\n }\n return `${key}:${value}`;\n}\n/**\n * Sort an array of tuples by first value.\n */\nfunction sortTuples(value) {\n return value.sort((a, b) => (a[0] > b[0] ? 1 : -1));\n}\n/**\n * Categorize user styles.\n */\nfunction parseStyles(styles, hasNestedStyles) {\n const properties = [];\n const nestedStyles = [];\n // Sort keys before adding to styles.\n for (const key of Object.keys(styles)) {\n const name = key.trim();\n const value = styles[key];\n if (name.charCodeAt(0) !== 36 /* $ */ && value != null) {\n if (typeof value === \"object\" && !Array.isArray(value)) {\n nestedStyles.push([name, value]);\n }\n else {\n properties.push([hyphenate(name), value]);\n }\n }\n }\n return {\n style: stringifyProperties(sortTuples(properties)),\n nested: hasNestedStyles ? nestedStyles : sortTuples(nestedStyles),\n isUnique: !!styles.$unique\n };\n}\n/**\n * Stringify an array of property tuples.\n */\nfunction stringifyProperties(properties) {\n return properties\n .map(([name, value]) => {\n if (!Array.isArray(value))\n return styleToString(name, value);\n return value.map(x => styleToString(name, x)).join(\";\");\n })\n .join(\";\");\n}\n/**\n * Interpolate CSS selectors.\n */\nfunction interpolate(selector, parent) {\n if (selector.indexOf(\"&\") === -1)\n return `${parent} ${selector}`;\n return selector.replace(/&/g, parent);\n}\n/**\n * Recursive loop building styles with deferred selectors.\n */\nfunction stylize(selector, styles, rulesList, stylesList, parent) {\n const { style, nested, isUnique } = parseStyles(styles, selector !== \"\");\n let pid = style;\n if (selector.charCodeAt(0) === 64 /* @ */) {\n const child = {\n selector,\n styles: [],\n rules: [],\n style: parent ? \"\" : style\n };\n rulesList.push(child);\n // Nested styles support (e.g. `.foo > @media > .bar`).\n if (style && parent) {\n child.styles.push({ selector: parent, style, isUnique });\n }\n for (const [name, value] of nested) {\n pid += name + stylize(name, value, child.rules, child.styles, parent);\n }\n }\n else {\n const key = parent ? interpolate(selector, parent) : selector;\n if (style)\n stylesList.push({ selector: key, style, isUnique });\n for (const [name, value] of nested) {\n pid += name + stylize(name, value, rulesList, stylesList, key);\n }\n }\n return pid;\n}\n/**\n * Transform `stylize` tree into style objects.\n */\nfunction composeStylize(cache, pid, rulesList, stylesList, className, isStyle) {\n for (const { selector, style, isUnique } of stylesList) {\n const key = isStyle ? interpolate(selector, className) : selector;\n const id = isUnique\n ? `u\\0${(++uniqueId).toString(36)}`\n : `s\\0${pid}\\0${style}`;\n const item = new Style(style, id);\n item.add(new Selector(key, `k\\0${pid}\\0${key}`));\n cache.add(item);\n }\n for (const { selector, style, rules, styles } of rulesList) {\n const item = new Rule(selector, style, `r\\0${pid}\\0${selector}\\0${style}`);\n composeStylize(item, pid, rules, styles, className, isStyle);\n cache.add(item);\n }\n}\n/**\n * Cache to list to styles.\n */\nfunction join(arr) {\n let res = \"\";\n for (let i = 0; i < arr.length; i++)\n res += arr[i];\n return res;\n}\n/**\n * Noop changes.\n */\nconst noopChanges = {\n add: () => undefined,\n change: () => undefined,\n remove: () => undefined\n};\n/**\n * Implement a cache/event emitter.\n */\nexport class Cache {\n constructor(changes = noopChanges) {\n this.changes = changes;\n this.sheet = [];\n this.changeId = 0;\n this._keys = [];\n this._children = Object.create(null);\n this._counters = Object.create(null);\n }\n add(style) {\n const count = this._counters[style.id] || 0;\n const item = this._children[style.id] || style.clone();\n this._counters[style.id] = count + 1;\n if (count === 0) {\n this._children[item.id] = item;\n this._keys.push(item.id);\n this.sheet.push(item.getStyles());\n this.changeId++;\n this.changes.add(item, this._keys.length - 1);\n }\n else if (item instanceof Cache && style instanceof Cache) {\n const curIndex = this._keys.indexOf(style.id);\n const prevItemChangeId = item.changeId;\n item.merge(style);\n if (item.changeId !== prevItemChangeId) {\n this.sheet.splice(curIndex, 1, item.getStyles());\n this.changeId++;\n this.changes.change(item, curIndex, curIndex);\n }\n }\n }\n remove(style) {\n const count = this._counters[style.id];\n if (count) {\n this._counters[style.id] = count - 1;\n const item = this._children[style.id];\n const index = this._keys.indexOf(item.id);\n if (count === 1) {\n delete this._counters[style.id];\n delete this._children[style.id];\n this._keys.splice(index, 1);\n this.sheet.splice(index, 1);\n this.changeId++;\n this.changes.remove(item, index);\n }\n else if (item instanceof Cache && style instanceof Cache) {\n const prevChangeId = item.changeId;\n item.unmerge(style);\n if (item.changeId !== prevChangeId) {\n this.sheet.splice(index, 1, item.getStyles());\n this.changeId++;\n this.changes.change(item, index, index);\n }\n }\n }\n }\n values() {\n return this._keys.map(key => this._children[key]);\n }\n merge(cache) {\n for (const item of cache.values())\n this.add(item);\n return this;\n }\n unmerge(cache) {\n for (const item of cache.values())\n this.remove(item);\n return this;\n }\n clone() {\n return new Cache().merge(this);\n }\n}\n/**\n * Selector is a dumb class made to represent nested CSS selectors.\n */\nexport class Selector {\n constructor(selector, id) {\n this.selector = selector;\n this.id = id;\n }\n getStyles() {\n return this.selector;\n }\n clone() {\n return this;\n }\n}\n/**\n * The style container registers a style string with selectors.\n */\nexport class Style extends Cache {\n constructor(style, id) {\n super();\n this.style = style;\n this.id = id;\n }\n getStyles() {\n return `${this.sheet.join(\",\")}{${this.style}}`;\n }\n clone() {\n return new Style(this.style, this.id).merge(this);\n }\n}\n/**\n * Implement rule logic for style output.\n */\nexport class Rule extends Cache {\n constructor(rule, style, id) {\n super();\n this.rule = rule;\n this.style = style;\n this.id = id;\n }\n getStyles() {\n return `${this.rule}{${this.style}${join(this.sheet)}}`;\n }\n clone() {\n return new Rule(this.rule, this.style, this.id).merge(this);\n }\n}\nfunction key(pid, styles) {\n const key = `f${stringHash(pid)}`;\n if (process.env.NODE_ENV === \"production\" || !styles.$displayName)\n return key;\n return `${styles.$displayName}_${key}`;\n}\n/**\n * The FreeStyle class implements the API for everything else.\n */\nexport class FreeStyle extends Cache {\n constructor(id, changes) {\n super(changes);\n this.id = id;\n }\n registerStyle(styles) {\n const rulesList = [];\n const stylesList = [];\n const pid = stylize(\"&\", styles, rulesList, stylesList);\n const id = key(pid, styles);\n const selector = `.${process.env.NODE_ENV === \"production\" ? id : escape(id)}`;\n composeStylize(this, pid, rulesList, stylesList, selector, true);\n return id;\n }\n registerKeyframes(keyframes) {\n return this.registerHashRule(\"@keyframes\", keyframes);\n }\n registerHashRule(prefix, styles) {\n const rulesList = [];\n const stylesList = [];\n const pid = stylize(\"\", styles, rulesList, stylesList);\n const id = key(pid, styles);\n const selector = `${prefix} ${process.env.NODE_ENV === \"production\" ? id : escape(id)}`;\n const rule = new Rule(selector, \"\", `h\\0${pid}\\0${prefix}`);\n composeStylize(rule, pid, rulesList, stylesList, \"\", false);\n this.add(rule);\n return id;\n }\n registerRule(rule, styles) {\n const rulesList = [];\n const stylesList = [];\n const pid = stylize(rule, styles, rulesList, stylesList);\n composeStylize(this, pid, rulesList, stylesList, \"\", false);\n }\n registerCss(styles) {\n return this.registerRule(\"\", styles);\n }\n getStyles() {\n return join(this.sheet);\n }\n clone() {\n return new FreeStyle(this.id, this.changes).merge(this);\n }\n}\n/**\n * Exports a simple function to create a new instance.\n */\nexport function create(changes) {\n return new FreeStyle(`f${(++uniqueId).toString(36)}`, changes);\n}\n//# sourceMappingURL=index.js.map","/**\n * lodash (Custom Build) \n * Build: `lodash modularize exports=\"npm\" -o ./`\n * Copyright jQuery Foundation and other contributors \n * Released under MIT license \n * Based on Underscore.js 1.8.3 \n * Copyright Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors\n */\n\n/** Used as the `TypeError` message for \"Functions\" methods. */\nvar FUNC_ERROR_TEXT = 'Expected a function';\n\n/** Used as the internal argument placeholder. */\nvar PLACEHOLDER = '__lodash_placeholder__';\n\n/** Used to compose bitmasks for function metadata. */\nvar BIND_FLAG = 1,\n BIND_KEY_FLAG = 2,\n CURRY_BOUND_FLAG = 4,\n CURRY_FLAG = 8,\n CURRY_RIGHT_FLAG = 16,\n PARTIAL_FLAG = 32,\n PARTIAL_RIGHT_FLAG = 64,\n ARY_FLAG = 128,\n REARG_FLAG = 256,\n FLIP_FLAG = 512;\n\n/** Used as references for various `Number` constants. */\nvar INFINITY = 1 / 0,\n MAX_SAFE_INTEGER = 9007199254740991,\n MAX_INTEGER = 1.7976931348623157e+308,\n NAN = 0 / 0;\n\n/** Used to associate wrap methods with their bit flags. */\nvar wrapFlags = [\n ['ary', ARY_FLAG],\n ['bind', BIND_FLAG],\n ['bindKey', BIND_KEY_FLAG],\n ['curry', CURRY_FLAG],\n ['curryRight', CURRY_RIGHT_FLAG],\n ['flip', FLIP_FLAG],\n ['partial', PARTIAL_FLAG],\n ['partialRight', PARTIAL_RIGHT_FLAG],\n ['rearg', REARG_FLAG]\n];\n\n/** `Object#toString` result references. */\nvar funcTag = '[object Function]',\n genTag = '[object GeneratorFunction]',\n symbolTag = '[object Symbol]';\n\n/**\n * Used to match `RegExp`\n * [syntax characters](http://ecma-international.org/ecma-262/7.0/#sec-patterns).\n */\nvar reRegExpChar = /[\\\\^$.*+?()[\\]{}|]/g;\n\n/** Used to match leading and trailing whitespace. */\nvar reTrim = /^\\s+|\\s+$/g;\n\n/** Used to match wrap detail comments. */\nvar reWrapComment = /\\{(?:\\n\\/\\* \\[wrapped with .+\\] \\*\\/)?\\n?/,\n reWrapDetails = /\\{\\n\\/\\* \\[wrapped with (.+)\\] \\*/,\n reSplitDetails = /,? & /;\n\n/** Used to detect bad signed hexadecimal string values. */\nvar reIsBadHex = /^[-+]0x[0-9a-f]+$/i;\n\n/** Used to detect binary string values. */\nvar reIsBinary = /^0b[01]+$/i;\n\n/** Used to detect host constructors (Safari). */\nvar reIsHostCtor = /^\\[object .+?Constructor\\]$/;\n\n/** Used to detect octal string values. */\nvar reIsOctal = /^0o[0-7]+$/i;\n\n/** Used to detect unsigned integer values. */\nvar reIsUint = /^(?:0|[1-9]\\d*)$/;\n\n/** Built-in method references without a dependency on `root`. */\nvar freeParseInt = parseInt;\n\n/** Detect free variable `global` from Node.js. */\nvar freeGlobal = typeof global == 'object' && global && global.Object === Object && global;\n\n/** Detect free variable `self`. */\nvar freeSelf = typeof self == 'object' && self && self.Object === Object && self;\n\n/** Used as a reference to the global object. */\nvar root = freeGlobal || freeSelf || Function('return this')();\n\n/**\n * A faster alternative to `Function#apply`, this function invokes `func`\n * with the `this` binding of `thisArg` and the arguments of `args`.\n *\n * @private\n * @param {Function} func The function to invoke.\n * @param {*} thisArg The `this` binding of `func`.\n * @param {Array} args The arguments to invoke `func` with.\n * @returns {*} Returns the result of `func`.\n */\nfunction apply(func, thisArg, args) {\n switch (args.length) {\n case 0: return func.call(thisArg);\n case 1: return func.call(thisArg, args[0]);\n case 2: return func.call(thisArg, args[0], args[1]);\n case 3: return func.call(thisArg, args[0], args[1], args[2]);\n }\n return func.apply(thisArg, args);\n}\n\n/**\n * A specialized version of `_.forEach` for arrays without support for\n * iteratee shorthands.\n *\n * @private\n * @param {Array} [array] The array to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Array} Returns `array`.\n */\nfunction arrayEach(array, iteratee) {\n var index = -1,\n length = array ? array.length : 0;\n\n while (++index < length) {\n if (iteratee(array[index], index, array) === false) {\n break;\n }\n }\n return array;\n}\n\n/**\n * A specialized version of `_.includes` for arrays without support for\n * specifying an index to search from.\n *\n * @private\n * @param {Array} [array] The array to inspect.\n * @param {*} target The value to search for.\n * @returns {boolean} Returns `true` if `target` is found, else `false`.\n */\nfunction arrayIncludes(array, value) {\n var length = array ? array.length : 0;\n return !!length && baseIndexOf(array, value, 0) > -1;\n}\n\n/**\n * The base implementation of `_.findIndex` and `_.findLastIndex` without\n * support for iteratee shorthands.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {Function} predicate The function invoked per iteration.\n * @param {number} fromIndex The index to search from.\n * @param {boolean} [fromRight] Specify iterating from right to left.\n * @returns {number} Returns the index of the matched value, else `-1`.\n */\nfunction baseFindIndex(array, predicate, fromIndex, fromRight) {\n var length = array.length,\n index = fromIndex + (fromRight ? 1 : -1);\n\n while ((fromRight ? index-- : ++index < length)) {\n if (predicate(array[index], index, array)) {\n return index;\n }\n }\n return -1;\n}\n\n/**\n * The base implementation of `_.indexOf` without `fromIndex` bounds checks.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {*} value The value to search for.\n * @param {number} fromIndex The index to search from.\n * @returns {number} Returns the index of the matched value, else `-1`.\n */\nfunction baseIndexOf(array, value, fromIndex) {\n if (value !== value) {\n return baseFindIndex(array, baseIsNaN, fromIndex);\n }\n var index = fromIndex - 1,\n length = array.length;\n\n while (++index < length) {\n if (array[index] === value) {\n return index;\n }\n }\n return -1;\n}\n\n/**\n * The base implementation of `_.isNaN` without support for number objects.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`.\n */\nfunction baseIsNaN(value) {\n return value !== value;\n}\n\n/**\n * Gets the number of `placeholder` occurrences in `array`.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {*} placeholder The placeholder to search for.\n * @returns {number} Returns the placeholder count.\n */\nfunction countHolders(array, placeholder) {\n var length = array.length,\n result = 0;\n\n while (length--) {\n if (array[length] === placeholder) {\n result++;\n }\n }\n return result;\n}\n\n/**\n * Gets the value at `key` of `object`.\n *\n * @private\n * @param {Object} [object] The object to query.\n * @param {string} key The key of the property to get.\n * @returns {*} Returns the property value.\n */\nfunction getValue(object, key) {\n return object == null ? undefined : object[key];\n}\n\n/**\n * Checks if `value` is a host object in IE < 9.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a host object, else `false`.\n */\nfunction isHostObject(value) {\n // Many host objects are `Object` objects that can coerce to strings\n // despite having improperly defined `toString` methods.\n var result = false;\n if (value != null && typeof value.toString != 'function') {\n try {\n result = !!(value + '');\n } catch (e) {}\n }\n return result;\n}\n\n/**\n * Replaces all `placeholder` elements in `array` with an internal placeholder\n * and returns an array of their indexes.\n *\n * @private\n * @param {Array} array The array to modify.\n * @param {*} placeholder The placeholder to replace.\n * @returns {Array} Returns the new array of placeholder indexes.\n */\nfunction replaceHolders(array, placeholder) {\n var index = -1,\n length = array.length,\n resIndex = 0,\n result = [];\n\n while (++index < length) {\n var value = array[index];\n if (value === placeholder || value === PLACEHOLDER) {\n array[index] = PLACEHOLDER;\n result[resIndex++] = index;\n }\n }\n return result;\n}\n\n/** Used for built-in method references. */\nvar funcProto = Function.prototype,\n objectProto = Object.prototype;\n\n/** Used to detect overreaching core-js shims. */\nvar coreJsData = root['__core-js_shared__'];\n\n/** Used to detect methods masquerading as native. */\nvar maskSrcKey = (function() {\n var uid = /[^.]+$/.exec(coreJsData && coreJsData.keys && coreJsData.keys.IE_PROTO || '');\n return uid ? ('Symbol(src)_1.' + uid) : '';\n}());\n\n/** Used to resolve the decompiled source of functions. */\nvar funcToString = funcProto.toString;\n\n/** Used to check objects for own properties. */\nvar hasOwnProperty = objectProto.hasOwnProperty;\n\n/**\n * Used to resolve the\n * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)\n * of values.\n */\nvar objectToString = objectProto.toString;\n\n/** Used to detect if a method is native. */\nvar reIsNative = RegExp('^' +\n funcToString.call(hasOwnProperty).replace(reRegExpChar, '\\\\$&')\n .replace(/hasOwnProperty|(function).*?(?=\\\\\\()| for .+?(?=\\\\\\])/g, '$1.*?') + '$'\n);\n\n/** Built-in value references. */\nvar objectCreate = Object.create;\n\n/* Built-in method references for those with the same name as other `lodash` methods. */\nvar nativeMax = Math.max,\n nativeMin = Math.min;\n\n/* Used to set `toString` methods. */\nvar defineProperty = (function() {\n var func = getNative(Object, 'defineProperty'),\n name = getNative.name;\n\n return (name && name.length > 2) ? func : undefined;\n}());\n\n/**\n * The base implementation of `_.create` without support for assigning\n * properties to the created object.\n *\n * @private\n * @param {Object} prototype The object to inherit from.\n * @returns {Object} Returns the new object.\n */\nfunction baseCreate(proto) {\n return isObject(proto) ? objectCreate(proto) : {};\n}\n\n/**\n * The base implementation of `_.isNative` without bad shim checks.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a native function,\n * else `false`.\n */\nfunction baseIsNative(value) {\n if (!isObject(value) || isMasked(value)) {\n return false;\n }\n var pattern = (isFunction(value) || isHostObject(value)) ? reIsNative : reIsHostCtor;\n return pattern.test(toSource(value));\n}\n\n/**\n * Creates an array that is the composition of partially applied arguments,\n * placeholders, and provided arguments into a single array of arguments.\n *\n * @private\n * @param {Array} args The provided arguments.\n * @param {Array} partials The arguments to prepend to those provided.\n * @param {Array} holders The `partials` placeholder indexes.\n * @params {boolean} [isCurried] Specify composing for a curried function.\n * @returns {Array} Returns the new array of composed arguments.\n */\nfunction composeArgs(args, partials, holders, isCurried) {\n var argsIndex = -1,\n argsLength = args.length,\n holdersLength = holders.length,\n leftIndex = -1,\n leftLength = partials.length,\n rangeLength = nativeMax(argsLength - holdersLength, 0),\n result = Array(leftLength + rangeLength),\n isUncurried = !isCurried;\n\n while (++leftIndex < leftLength) {\n result[leftIndex] = partials[leftIndex];\n }\n while (++argsIndex < holdersLength) {\n if (isUncurried || argsIndex < argsLength) {\n result[holders[argsIndex]] = args[argsIndex];\n }\n }\n while (rangeLength--) {\n result[leftIndex++] = args[argsIndex++];\n }\n return result;\n}\n\n/**\n * This function is like `composeArgs` except that the arguments composition\n * is tailored for `_.partialRight`.\n *\n * @private\n * @param {Array} args The provided arguments.\n * @param {Array} partials The arguments to append to those provided.\n * @param {Array} holders The `partials` placeholder indexes.\n * @params {boolean} [isCurried] Specify composing for a curried function.\n * @returns {Array} Returns the new array of composed arguments.\n */\nfunction composeArgsRight(args, partials, holders, isCurried) {\n var argsIndex = -1,\n argsLength = args.length,\n holdersIndex = -1,\n holdersLength = holders.length,\n rightIndex = -1,\n rightLength = partials.length,\n rangeLength = nativeMax(argsLength - holdersLength, 0),\n result = Array(rangeLength + rightLength),\n isUncurried = !isCurried;\n\n while (++argsIndex < rangeLength) {\n result[argsIndex] = args[argsIndex];\n }\n var offset = argsIndex;\n while (++rightIndex < rightLength) {\n result[offset + rightIndex] = partials[rightIndex];\n }\n while (++holdersIndex < holdersLength) {\n if (isUncurried || argsIndex < argsLength) {\n result[offset + holders[holdersIndex]] = args[argsIndex++];\n }\n }\n return result;\n}\n\n/**\n * Copies the values of `source` to `array`.\n *\n * @private\n * @param {Array} source The array to copy values from.\n * @param {Array} [array=[]] The array to copy values to.\n * @returns {Array} Returns `array`.\n */\nfunction copyArray(source, array) {\n var index = -1,\n length = source.length;\n\n array || (array = Array(length));\n while (++index < length) {\n array[index] = source[index];\n }\n return array;\n}\n\n/**\n * Creates a function that wraps `func` to invoke it with the optional `this`\n * binding of `thisArg`.\n *\n * @private\n * @param {Function} func The function to wrap.\n * @param {number} bitmask The bitmask flags. See `createWrap` for more details.\n * @param {*} [thisArg] The `this` binding of `func`.\n * @returns {Function} Returns the new wrapped function.\n */\nfunction createBind(func, bitmask, thisArg) {\n var isBind = bitmask & BIND_FLAG,\n Ctor = createCtor(func);\n\n function wrapper() {\n var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func;\n return fn.apply(isBind ? thisArg : this, arguments);\n }\n return wrapper;\n}\n\n/**\n * Creates a function that produces an instance of `Ctor` regardless of\n * whether it was invoked as part of a `new` expression or by `call` or `apply`.\n *\n * @private\n * @param {Function} Ctor The constructor to wrap.\n * @returns {Function} Returns the new wrapped function.\n */\nfunction createCtor(Ctor) {\n return function() {\n // Use a `switch` statement to work with class constructors. See\n // http://ecma-international.org/ecma-262/7.0/#sec-ecmascript-function-objects-call-thisargument-argumentslist\n // for more details.\n var args = arguments;\n switch (args.length) {\n case 0: return new Ctor;\n case 1: return new Ctor(args[0]);\n case 2: return new Ctor(args[0], args[1]);\n case 3: return new Ctor(args[0], args[1], args[2]);\n case 4: return new Ctor(args[0], args[1], args[2], args[3]);\n case 5: return new Ctor(args[0], args[1], args[2], args[3], args[4]);\n case 6: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5]);\n case 7: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5], args[6]);\n }\n var thisBinding = baseCreate(Ctor.prototype),\n result = Ctor.apply(thisBinding, args);\n\n // Mimic the constructor's `return` behavior.\n // See https://es5.github.io/#x13.2.2 for more details.\n return isObject(result) ? result : thisBinding;\n };\n}\n\n/**\n * Creates a function that wraps `func` to enable currying.\n *\n * @private\n * @param {Function} func The function to wrap.\n * @param {number} bitmask The bitmask flags. See `createWrap` for more details.\n * @param {number} arity The arity of `func`.\n * @returns {Function} Returns the new wrapped function.\n */\nfunction createCurry(func, bitmask, arity) {\n var Ctor = createCtor(func);\n\n function wrapper() {\n var length = arguments.length,\n args = Array(length),\n index = length,\n placeholder = getHolder(wrapper);\n\n while (index--) {\n args[index] = arguments[index];\n }\n var holders = (length < 3 && args[0] !== placeholder && args[length - 1] !== placeholder)\n ? []\n : replaceHolders(args, placeholder);\n\n length -= holders.length;\n if (length < arity) {\n return createRecurry(\n func, bitmask, createHybrid, wrapper.placeholder, undefined,\n args, holders, undefined, undefined, arity - length);\n }\n var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func;\n return apply(fn, this, args);\n }\n return wrapper;\n}\n\n/**\n * Creates a function that wraps `func` to invoke it with optional `this`\n * binding of `thisArg`, partial application, and currying.\n *\n * @private\n * @param {Function|string} func The function or method name to wrap.\n * @param {number} bitmask The bitmask flags. See `createWrap` for more details.\n * @param {*} [thisArg] The `this` binding of `func`.\n * @param {Array} [partials] The arguments to prepend to those provided to\n * the new function.\n * @param {Array} [holders] The `partials` placeholder indexes.\n * @param {Array} [partialsRight] The arguments to append to those provided\n * to the new function.\n * @param {Array} [holdersRight] The `partialsRight` placeholder indexes.\n * @param {Array} [argPos] The argument positions of the new function.\n * @param {number} [ary] The arity cap of `func`.\n * @param {number} [arity] The arity of `func`.\n * @returns {Function} Returns the new wrapped function.\n */\nfunction createHybrid(func, bitmask, thisArg, partials, holders, partialsRight, holdersRight, argPos, ary, arity) {\n var isAry = bitmask & ARY_FLAG,\n isBind = bitmask & BIND_FLAG,\n isBindKey = bitmask & BIND_KEY_FLAG,\n isCurried = bitmask & (CURRY_FLAG | CURRY_RIGHT_FLAG),\n isFlip = bitmask & FLIP_FLAG,\n Ctor = isBindKey ? undefined : createCtor(func);\n\n function wrapper() {\n var length = arguments.length,\n args = Array(length),\n index = length;\n\n while (index--) {\n args[index] = arguments[index];\n }\n if (isCurried) {\n var placeholder = getHolder(wrapper),\n holdersCount = countHolders(args, placeholder);\n }\n if (partials) {\n args = composeArgs(args, partials, holders, isCurried);\n }\n if (partialsRight) {\n args = composeArgsRight(args, partialsRight, holdersRight, isCurried);\n }\n length -= holdersCount;\n if (isCurried && length < arity) {\n var newHolders = replaceHolders(args, placeholder);\n return createRecurry(\n func, bitmask, createHybrid, wrapper.placeholder, thisArg,\n args, newHolders, argPos, ary, arity - length\n );\n }\n var thisBinding = isBind ? thisArg : this,\n fn = isBindKey ? thisBinding[func] : func;\n\n length = args.length;\n if (argPos) {\n args = reorder(args, argPos);\n } else if (isFlip && length > 1) {\n args.reverse();\n }\n if (isAry && ary < length) {\n args.length = ary;\n }\n if (this && this !== root && this instanceof wrapper) {\n fn = Ctor || createCtor(fn);\n }\n return fn.apply(thisBinding, args);\n }\n return wrapper;\n}\n\n/**\n * Creates a function that wraps `func` to invoke it with the `this` binding\n * of `thisArg` and `partials` prepended to the arguments it receives.\n *\n * @private\n * @param {Function} func The function to wrap.\n * @param {number} bitmask The bitmask flags. See `createWrap` for more details.\n * @param {*} thisArg The `this` binding of `func`.\n * @param {Array} partials The arguments to prepend to those provided to\n * the new function.\n * @returns {Function} Returns the new wrapped function.\n */\nfunction createPartial(func, bitmask, thisArg, partials) {\n var isBind = bitmask & BIND_FLAG,\n Ctor = createCtor(func);\n\n function wrapper() {\n var argsIndex = -1,\n argsLength = arguments.length,\n leftIndex = -1,\n leftLength = partials.length,\n args = Array(leftLength + argsLength),\n fn = (this && this !== root && this instanceof wrapper) ? Ctor : func;\n\n while (++leftIndex < leftLength) {\n args[leftIndex] = partials[leftIndex];\n }\n while (argsLength--) {\n args[leftIndex++] = arguments[++argsIndex];\n }\n return apply(fn, isBind ? thisArg : this, args);\n }\n return wrapper;\n}\n\n/**\n * Creates a function that wraps `func` to continue currying.\n *\n * @private\n * @param {Function} func The function to wrap.\n * @param {number} bitmask The bitmask flags. See `createWrap` for more details.\n * @param {Function} wrapFunc The function to create the `func` wrapper.\n * @param {*} placeholder The placeholder value.\n * @param {*} [thisArg] The `this` binding of `func`.\n * @param {Array} [partials] The arguments to prepend to those provided to\n * the new function.\n * @param {Array} [holders] The `partials` placeholder indexes.\n * @param {Array} [argPos] The argument positions of the new function.\n * @param {number} [ary] The arity cap of `func`.\n * @param {number} [arity] The arity of `func`.\n * @returns {Function} Returns the new wrapped function.\n */\nfunction createRecurry(func, bitmask, wrapFunc, placeholder, thisArg, partials, holders, argPos, ary, arity) {\n var isCurry = bitmask & CURRY_FLAG,\n newHolders = isCurry ? holders : undefined,\n newHoldersRight = isCurry ? undefined : holders,\n newPartials = isCurry ? partials : undefined,\n newPartialsRight = isCurry ? undefined : partials;\n\n bitmask |= (isCurry ? PARTIAL_FLAG : PARTIAL_RIGHT_FLAG);\n bitmask &= ~(isCurry ? PARTIAL_RIGHT_FLAG : PARTIAL_FLAG);\n\n if (!(bitmask & CURRY_BOUND_FLAG)) {\n bitmask &= ~(BIND_FLAG | BIND_KEY_FLAG);\n }\n\n var result = wrapFunc(func, bitmask, thisArg, newPartials, newHolders, newPartialsRight, newHoldersRight, argPos, ary, arity);\n result.placeholder = placeholder;\n return setWrapToString(result, func, bitmask);\n}\n\n/**\n * Creates a function that either curries or invokes `func` with optional\n * `this` binding and partially applied arguments.\n *\n * @private\n * @param {Function|string} func The function or method name to wrap.\n * @param {number} bitmask The bitmask flags.\n * The bitmask may be composed of the following flags:\n * 1 - `_.bind`\n * 2 - `_.bindKey`\n * 4 - `_.curry` or `_.curryRight` of a bound function\n * 8 - `_.curry`\n * 16 - `_.curryRight`\n * 32 - `_.partial`\n * 64 - `_.partialRight`\n * 128 - `_.rearg`\n * 256 - `_.ary`\n * 512 - `_.flip`\n * @param {*} [thisArg] The `this` binding of `func`.\n * @param {Array} [partials] The arguments to be partially applied.\n * @param {Array} [holders] The `partials` placeholder indexes.\n * @param {Array} [argPos] The argument positions of the new function.\n * @param {number} [ary] The arity cap of `func`.\n * @param {number} [arity] The arity of `func`.\n * @returns {Function} Returns the new wrapped function.\n */\nfunction createWrap(func, bitmask, thisArg, partials, holders, argPos, ary, arity) {\n var isBindKey = bitmask & BIND_KEY_FLAG;\n if (!isBindKey && typeof func != 'function') {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n var length = partials ? partials.length : 0;\n if (!length) {\n bitmask &= ~(PARTIAL_FLAG | PARTIAL_RIGHT_FLAG);\n partials = holders = undefined;\n }\n ary = ary === undefined ? ary : nativeMax(toInteger(ary), 0);\n arity = arity === undefined ? arity : toInteger(arity);\n length -= holders ? holders.length : 0;\n\n if (bitmask & PARTIAL_RIGHT_FLAG) {\n var partialsRight = partials,\n holdersRight = holders;\n\n partials = holders = undefined;\n }\n\n var newData = [\n func, bitmask, thisArg, partials, holders, partialsRight, holdersRight,\n argPos, ary, arity\n ];\n\n func = newData[0];\n bitmask = newData[1];\n thisArg = newData[2];\n partials = newData[3];\n holders = newData[4];\n arity = newData[9] = newData[9] == null\n ? (isBindKey ? 0 : func.length)\n : nativeMax(newData[9] - length, 0);\n\n if (!arity && bitmask & (CURRY_FLAG | CURRY_RIGHT_FLAG)) {\n bitmask &= ~(CURRY_FLAG | CURRY_RIGHT_FLAG);\n }\n if (!bitmask || bitmask == BIND_FLAG) {\n var result = createBind(func, bitmask, thisArg);\n } else if (bitmask == CURRY_FLAG || bitmask == CURRY_RIGHT_FLAG) {\n result = createCurry(func, bitmask, arity);\n } else if ((bitmask == PARTIAL_FLAG || bitmask == (BIND_FLAG | PARTIAL_FLAG)) && !holders.length) {\n result = createPartial(func, bitmask, thisArg, partials);\n } else {\n result = createHybrid.apply(undefined, newData);\n }\n return setWrapToString(result, func, bitmask);\n}\n\n/**\n * Gets the argument placeholder value for `func`.\n *\n * @private\n * @param {Function} func The function to inspect.\n * @returns {*} Returns the placeholder value.\n */\nfunction getHolder(func) {\n var object = func;\n return object.placeholder;\n}\n\n/**\n * Gets the native function at `key` of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {string} key The key of the method to get.\n * @returns {*} Returns the function if it's native, else `undefined`.\n */\nfunction getNative(object, key) {\n var value = getValue(object, key);\n return baseIsNative(value) ? value : undefined;\n}\n\n/**\n * Extracts wrapper details from the `source` body comment.\n *\n * @private\n * @param {string} source The source to inspect.\n * @returns {Array} Returns the wrapper details.\n */\nfunction getWrapDetails(source) {\n var match = source.match(reWrapDetails);\n return match ? match[1].split(reSplitDetails) : [];\n}\n\n/**\n * Inserts wrapper `details` in a comment at the top of the `source` body.\n *\n * @private\n * @param {string} source The source to modify.\n * @returns {Array} details The details to insert.\n * @returns {string} Returns the modified source.\n */\nfunction insertWrapDetails(source, details) {\n var length = details.length,\n lastIndex = length - 1;\n\n details[lastIndex] = (length > 1 ? '& ' : '') + details[lastIndex];\n details = details.join(length > 2 ? ', ' : ' ');\n return source.replace(reWrapComment, '{\\n/* [wrapped with ' + details + '] */\\n');\n}\n\n/**\n * Checks if `value` is a valid array-like index.\n *\n * @private\n * @param {*} value The value to check.\n * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index.\n * @returns {boolean} Returns `true` if `value` is a valid index, else `false`.\n */\nfunction isIndex(value, length) {\n length = length == null ? MAX_SAFE_INTEGER : length;\n return !!length &&\n (typeof value == 'number' || reIsUint.test(value)) &&\n (value > -1 && value % 1 == 0 && value < length);\n}\n\n/**\n * Checks if `func` has its source masked.\n *\n * @private\n * @param {Function} func The function to check.\n * @returns {boolean} Returns `true` if `func` is masked, else `false`.\n */\nfunction isMasked(func) {\n return !!maskSrcKey && (maskSrcKey in func);\n}\n\n/**\n * Reorder `array` according to the specified indexes where the element at\n * the first index is assigned as the first element, the element at\n * the second index is assigned as the second element, and so on.\n *\n * @private\n * @param {Array} array The array to reorder.\n * @param {Array} indexes The arranged array indexes.\n * @returns {Array} Returns `array`.\n */\nfunction reorder(array, indexes) {\n var arrLength = array.length,\n length = nativeMin(indexes.length, arrLength),\n oldArray = copyArray(array);\n\n while (length--) {\n var index = indexes[length];\n array[length] = isIndex(index, arrLength) ? oldArray[index] : undefined;\n }\n return array;\n}\n\n/**\n * Sets the `toString` method of `wrapper` to mimic the source of `reference`\n * with wrapper details in a comment at the top of the source body.\n *\n * @private\n * @param {Function} wrapper The function to modify.\n * @param {Function} reference The reference function.\n * @param {number} bitmask The bitmask flags. See `createWrap` for more details.\n * @returns {Function} Returns `wrapper`.\n */\nvar setWrapToString = !defineProperty ? identity : function(wrapper, reference, bitmask) {\n var source = (reference + '');\n return defineProperty(wrapper, 'toString', {\n 'configurable': true,\n 'enumerable': false,\n 'value': constant(insertWrapDetails(source, updateWrapDetails(getWrapDetails(source), bitmask)))\n });\n};\n\n/**\n * Converts `func` to its source code.\n *\n * @private\n * @param {Function} func The function to process.\n * @returns {string} Returns the source code.\n */\nfunction toSource(func) {\n if (func != null) {\n try {\n return funcToString.call(func);\n } catch (e) {}\n try {\n return (func + '');\n } catch (e) {}\n }\n return '';\n}\n\n/**\n * Updates wrapper `details` based on `bitmask` flags.\n *\n * @private\n * @returns {Array} details The details to modify.\n * @param {number} bitmask The bitmask flags. See `createWrap` for more details.\n * @returns {Array} Returns `details`.\n */\nfunction updateWrapDetails(details, bitmask) {\n arrayEach(wrapFlags, function(pair) {\n var value = '_.' + pair[0];\n if ((bitmask & pair[1]) && !arrayIncludes(details, value)) {\n details.push(value);\n }\n });\n return details.sort();\n}\n\n/**\n * Creates a function that accepts arguments of `func` and either invokes\n * `func` returning its result, if at least `arity` number of arguments have\n * been provided, or returns a function that accepts the remaining `func`\n * arguments, and so on. The arity of `func` may be specified if `func.length`\n * is not sufficient.\n *\n * The `_.curry.placeholder` value, which defaults to `_` in monolithic builds,\n * may be used as a placeholder for provided arguments.\n *\n * **Note:** This method doesn't set the \"length\" property of curried functions.\n *\n * @static\n * @memberOf _\n * @since 2.0.0\n * @category Function\n * @param {Function} func The function to curry.\n * @param {number} [arity=func.length] The arity of `func`.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {Function} Returns the new curried function.\n * @example\n *\n * var abc = function(a, b, c) {\n * return [a, b, c];\n * };\n *\n * var curried = _.curry(abc);\n *\n * curried(1)(2)(3);\n * // => [1, 2, 3]\n *\n * curried(1, 2)(3);\n * // => [1, 2, 3]\n *\n * curried(1, 2, 3);\n * // => [1, 2, 3]\n *\n * // Curried with placeholders.\n * curried(1)(_, 3)(2);\n * // => [1, 2, 3]\n */\nfunction curry(func, arity, guard) {\n arity = guard ? undefined : arity;\n var result = createWrap(func, CURRY_FLAG, undefined, undefined, undefined, undefined, undefined, arity);\n result.placeholder = curry.placeholder;\n return result;\n}\n\n/**\n * Checks if `value` is classified as a `Function` object.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a function, else `false`.\n * @example\n *\n * _.isFunction(_);\n * // => true\n *\n * _.isFunction(/abc/);\n * // => false\n */\nfunction isFunction(value) {\n // The use of `Object#toString` avoids issues with the `typeof` operator\n // in Safari 8-9 which returns 'object' for typed array and other constructors.\n var tag = isObject(value) ? objectToString.call(value) : '';\n return tag == funcTag || tag == genTag;\n}\n\n/**\n * Checks if `value` is the\n * [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types)\n * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an object, else `false`.\n * @example\n *\n * _.isObject({});\n * // => true\n *\n * _.isObject([1, 2, 3]);\n * // => true\n *\n * _.isObject(_.noop);\n * // => true\n *\n * _.isObject(null);\n * // => false\n */\nfunction isObject(value) {\n var type = typeof value;\n return !!value && (type == 'object' || type == 'function');\n}\n\n/**\n * Checks if `value` is object-like. A value is object-like if it's not `null`\n * and has a `typeof` result of \"object\".\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is object-like, else `false`.\n * @example\n *\n * _.isObjectLike({});\n * // => true\n *\n * _.isObjectLike([1, 2, 3]);\n * // => true\n *\n * _.isObjectLike(_.noop);\n * // => false\n *\n * _.isObjectLike(null);\n * // => false\n */\nfunction isObjectLike(value) {\n return !!value && typeof value == 'object';\n}\n\n/**\n * Checks if `value` is classified as a `Symbol` primitive or object.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a symbol, else `false`.\n * @example\n *\n * _.isSymbol(Symbol.iterator);\n * // => true\n *\n * _.isSymbol('abc');\n * // => false\n */\nfunction isSymbol(value) {\n return typeof value == 'symbol' ||\n (isObjectLike(value) && objectToString.call(value) == symbolTag);\n}\n\n/**\n * Converts `value` to a finite number.\n *\n * @static\n * @memberOf _\n * @since 4.12.0\n * @category Lang\n * @param {*} value The value to convert.\n * @returns {number} Returns the converted number.\n * @example\n *\n * _.toFinite(3.2);\n * // => 3.2\n *\n * _.toFinite(Number.MIN_VALUE);\n * // => 5e-324\n *\n * _.toFinite(Infinity);\n * // => 1.7976931348623157e+308\n *\n * _.toFinite('3.2');\n * // => 3.2\n */\nfunction toFinite(value) {\n if (!value) {\n return value === 0 ? value : 0;\n }\n value = toNumber(value);\n if (value === INFINITY || value === -INFINITY) {\n var sign = (value < 0 ? -1 : 1);\n return sign * MAX_INTEGER;\n }\n return value === value ? value : 0;\n}\n\n/**\n * Converts `value` to an integer.\n *\n * **Note:** This method is loosely based on\n * [`ToInteger`](http://www.ecma-international.org/ecma-262/7.0/#sec-tointeger).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to convert.\n * @returns {number} Returns the converted integer.\n * @example\n *\n * _.toInteger(3.2);\n * // => 3\n *\n * _.toInteger(Number.MIN_VALUE);\n * // => 0\n *\n * _.toInteger(Infinity);\n * // => 1.7976931348623157e+308\n *\n * _.toInteger('3.2');\n * // => 3\n */\nfunction toInteger(value) {\n var result = toFinite(value),\n remainder = result % 1;\n\n return result === result ? 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NAN : +value);\n}\n\n/**\n * Creates a function that returns `value`.\n *\n * @static\n * @memberOf _\n * @since 2.4.0\n * @category Util\n * @param {*} value The value to return from the new function.\n * @returns {Function} Returns the new constant function.\n * @example\n *\n * var objects = _.times(2, _.constant({ 'a': 1 }));\n *\n * console.log(objects);\n * // => [{ 'a': 1 }, { 'a': 1 }]\n *\n * console.log(objects[0] === objects[1]);\n * // => true\n */\nfunction constant(value) {\n return function() {\n return value;\n };\n}\n\n/**\n * This method returns the first argument it receives.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Util\n * @param {*} value Any value.\n * @returns {*} Returns `value`.\n * @example\n *\n * var object = { 'a': 1 };\n *\n * console.log(_.identity(object) === object);\n * // => true\n */\nfunction identity(value) {\n return value;\n}\n\n// Assign default placeholders.\ncurry.placeholder = {};\n\nmodule.exports = curry;\n","module.exports =\n/******/ (function(modules) { // webpackBootstrap\n/******/ \t// The module cache\n/******/ \tvar installedModules = {};\n/******/\n/******/ \t// The require function\n/******/ \tfunction __webpack_require__(moduleId) {\n/******/\n/******/ \t\t// Check if module is in cache\n/******/ \t\tif(installedModules[moduleId])\n/******/ \t\t\treturn installedModules[moduleId].exports;\n/******/\n/******/ \t\t// Create a new module (and put it into the cache)\n/******/ \t\tvar module = installedModules[moduleId] = {\n/******/ \t\t\texports: {},\n/******/ \t\t\tid: moduleId,\n/******/ \t\t\tloaded: false\n/******/ \t\t};\n/******/\n/******/ \t\t// Execute the module function\n/******/ \t\tmodules[moduleId].call(module.exports, module, module.exports, __webpack_require__);\n/******/\n/******/ \t\t// Flag the module as loaded\n/******/ \t\tmodule.loaded = true;\n/******/\n/******/ \t\t// Return the exports of the module\n/******/ \t\treturn module.exports;\n/******/ \t}\n/******/\n/******/\n/******/ \t// expose the modules object (__webpack_modules__)\n/******/ \t__webpack_require__.m = modules;\n/******/\n/******/ \t// expose the module cache\n/******/ \t__webpack_require__.c = installedModules;\n/******/\n/******/ \t// __webpack_public_path__\n/******/ \t__webpack_require__.p = \"\";\n/******/\n/******/ \t// Load entry module and return exports\n/******/ \treturn __webpack_require__(0);\n/******/ })\n/************************************************************************/\n/******/ ([\n/* 0 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\tmodule.exports = __webpack_require__(1);\n\n\n/***/ }),\n/* 1 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\t'use strict';\n\t\n\tObject.defineProperty(exports, '__esModule', {\n\t value: true\n\t});\n\t\n\tfunction _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }\n\t\n\tvar _Highlighter = __webpack_require__(2);\n\t\n\tvar _Highlighter2 = _interopRequireDefault(_Highlighter);\n\n\texports['default'] = _Highlighter2['default'];\n\tmodule.exports = exports['default'];\n\n/***/ }),\n/* 2 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\t'use strict';\n\t\n\tObject.defineProperty(exports, '__esModule', {\n\t value: true\n\t});\n\t\n\tvar _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };\n\t\n\texports['default'] = Highlighter;\n\t\n\tfunction _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }\n\t\n\tfunction _objectWithoutProperties(obj, keys) { var target = {}; for (var i in obj) { if (keys.indexOf(i) >= 0) continue; if (!Object.prototype.hasOwnProperty.call(obj, i)) continue; target[i] = obj[i]; } return target; }\n\t\n\tvar _highlightWordsCore = __webpack_require__(3);\n\t\n\tvar _propTypes = __webpack_require__(4);\n\t\n\tvar _propTypes2 = _interopRequireDefault(_propTypes);\n\t\n\tvar _react = __webpack_require__(14);\n\t\n\tvar _memoizeOne = __webpack_require__(15);\n\t\n\tvar _memoizeOne2 = _interopRequireDefault(_memoizeOne);\n\t\n\tHighlighter.propTypes = {\n\t activeClassName: _propTypes2['default'].string,\n\t activeIndex: _propTypes2['default'].number,\n\t activeStyle: _propTypes2['default'].object,\n\t autoEscape: _propTypes2['default'].bool,\n\t className: _propTypes2['default'].string,\n\t findChunks: _propTypes2['default'].func,\n\t highlightClassName: _propTypes2['default'].oneOfType([_propTypes2['default'].object, _propTypes2['default'].string]),\n\t highlightStyle: _propTypes2['default'].object,\n\t highlightTag: _propTypes2['default'].oneOfType([_propTypes2['default'].node, _propTypes2['default'].func, _propTypes2['default'].string]),\n\t sanitize: _propTypes2['default'].func,\n\t searchWords: _propTypes2['default'].arrayOf(_propTypes2['default'].oneOfType([_propTypes2['default'].string, _propTypes2['default'].instanceOf(RegExp)])).isRequired,\n\t textToHighlight: _propTypes2['default'].string.isRequired,\n\t unhighlightTag: _propTypes2['default'].oneOfType([_propTypes2['default'].node, _propTypes2['default'].func, _propTypes2['default'].string]),\n\t unhighlightClassName: _propTypes2['default'].string,\n\t unhighlightStyle: _propTypes2['default'].object\n\t};\n\t\n\t/**\r\n\t * Highlights all occurrences of search terms (searchText) within a string (textToHighlight).\r\n\t * This function returns an array of strings and s (wrapping highlighted words).\r\n\t */\n\t\n\tfunction Highlighter(_ref) {\n\t var _ref$activeClassName = _ref.activeClassName;\n\t var activeClassName = _ref$activeClassName === undefined ? '' : _ref$activeClassName;\n\t var _ref$activeIndex = _ref.activeIndex;\n\t var activeIndex = _ref$activeIndex === undefined ? -1 : _ref$activeIndex;\n\t var activeStyle = _ref.activeStyle;\n\t var autoEscape = _ref.autoEscape;\n\t var _ref$caseSensitive = _ref.caseSensitive;\n\t var caseSensitive = _ref$caseSensitive === undefined ? false : _ref$caseSensitive;\n\t var className = _ref.className;\n\t var findChunks = _ref.findChunks;\n\t var _ref$highlightClassName = _ref.highlightClassName;\n\t var highlightClassName = _ref$highlightClassName === undefined ? '' : _ref$highlightClassName;\n\t var _ref$highlightStyle = _ref.highlightStyle;\n\t var highlightStyle = _ref$highlightStyle === undefined ? {} : _ref$highlightStyle;\n\t var _ref$highlightTag = _ref.highlightTag;\n\t var highlightTag = _ref$highlightTag === undefined ? 'mark' : _ref$highlightTag;\n\t var sanitize = _ref.sanitize;\n\t var searchWords = _ref.searchWords;\n\t var textToHighlight = _ref.textToHighlight;\n\t var _ref$unhighlightTag = _ref.unhighlightTag;\n\t var unhighlightTag = _ref$unhighlightTag === undefined ? 'span' : _ref$unhighlightTag;\n\t var _ref$unhighlightClassName = _ref.unhighlightClassName;\n\t var unhighlightClassName = _ref$unhighlightClassName === undefined ? '' : _ref$unhighlightClassName;\n\t var unhighlightStyle = _ref.unhighlightStyle;\n\t\n\t var rest = _objectWithoutProperties(_ref, ['activeClassName', 'activeIndex', 'activeStyle', 'autoEscape', 'caseSensitive', 'className', 'findChunks', 'highlightClassName', 'highlightStyle', 'highlightTag', 'sanitize', 'searchWords', 'textToHighlight', 'unhighlightTag', 'unhighlightClassName', 'unhighlightStyle']);\n\t\n\t var chunks = (0, _highlightWordsCore.findAll)({\n\t autoEscape: autoEscape,\n\t caseSensitive: caseSensitive,\n\t findChunks: findChunks,\n\t sanitize: sanitize,\n\t searchWords: searchWords,\n\t textToHighlight: textToHighlight\n\t });\n\t var HighlightTag = highlightTag;\n\t var highlightIndex = -1;\n\t var highlightClassNames = '';\n\t var highlightStyles = undefined;\n\t\n\t var lowercaseProps = function lowercaseProps(object) {\n\t var mapped = {};\n\t for (var key in object) {\n\t mapped[key.toLowerCase()] = object[key];\n\t }\n\t return mapped;\n\t };\n\t var memoizedLowercaseProps = (0, _memoizeOne2['default'])(lowercaseProps);\n\t\n\t return (0, _react.createElement)('span', _extends({\n\t className: className\n\t }, rest, {\n\t children: chunks.map(function (chunk, index) {\n\t var text = textToHighlight.substr(chunk.start, chunk.end - chunk.start);\n\t\n\t if (chunk.highlight) {\n\t highlightIndex++;\n\t\n\t var highlightClass = undefined;\n\t if (typeof highlightClassName === 'object') {\n\t if (!caseSensitive) {\n\t highlightClassName = memoizedLowercaseProps(highlightClassName);\n\t highlightClass = highlightClassName[text.toLowerCase()];\n\t } else {\n\t highlightClass = highlightClassName[text];\n\t }\n\t } else {\n\t highlightClass = highlightClassName;\n\t }\n\t\n\t var isActive = highlightIndex === +activeIndex;\n\t\n\t highlightClassNames = highlightClass + ' ' + (isActive ? activeClassName : '');\n\t highlightStyles = isActive === true && activeStyle != null ? Object.assign({}, highlightStyle, activeStyle) : highlightStyle;\n\t\n\t var props = {\n\t children: text,\n\t className: highlightClassNames,\n\t key: index,\n\t style: highlightStyles\n\t };\n\t\n\t // Don't attach arbitrary props to DOM elements; this triggers React DEV warnings (https://fb.me/react-unknown-prop)\n\t // Only pass through the highlightIndex attribute for custom components.\n\t if (typeof HighlightTag !== 'string') {\n\t props.highlightIndex = highlightIndex;\n\t }\n\t\n\t return (0, _react.createElement)(HighlightTag, props);\n\t } else {\n\t return (0, _react.createElement)(unhighlightTag, {\n\t children: text,\n\t className: unhighlightClassName,\n\t key: index,\n\t style: unhighlightStyle\n\t });\n\t }\n\t })\n\t }));\n\t}\n\t\n\tmodule.exports = exports['default'];\n\n/***/ }),\n/* 3 */\n/***/ (function(module, exports) {\n\n\tmodule.exports =\n\t/******/ (function(modules) { // webpackBootstrap\n\t/******/ \t// The module cache\n\t/******/ \tvar installedModules = {};\n\t/******/\n\t/******/ \t// The require function\n\t/******/ \tfunction __webpack_require__(moduleId) {\n\t/******/\n\t/******/ \t\t// Check if module is in cache\n\t/******/ \t\tif(installedModules[moduleId])\n\t/******/ \t\t\treturn installedModules[moduleId].exports;\n\t/******/\n\t/******/ \t\t// Create a new module (and put it into the cache)\n\t/******/ \t\tvar module = installedModules[moduleId] = {\n\t/******/ \t\t\texports: {},\n\t/******/ \t\t\tid: moduleId,\n\t/******/ \t\t\tloaded: false\n\t/******/ \t\t};\n\t/******/\n\t/******/ \t\t// Execute the module function\n\t/******/ \t\tmodules[moduleId].call(module.exports, module, module.exports, __webpack_require__);\n\t/******/\n\t/******/ \t\t// Flag the module as loaded\n\t/******/ \t\tmodule.loaded = true;\n\t/******/\n\t/******/ \t\t// Return the exports of the module\n\t/******/ \t\treturn module.exports;\n\t/******/ \t}\n\t/******/\n\t/******/\n\t/******/ \t// expose the modules object (__webpack_modules__)\n\t/******/ \t__webpack_require__.m = modules;\n\t/******/\n\t/******/ \t// expose the module cache\n\t/******/ \t__webpack_require__.c = installedModules;\n\t/******/\n\t/******/ \t// __webpack_public_path__\n\t/******/ \t__webpack_require__.p = \"\";\n\t/******/\n\t/******/ \t// Load entry module and return exports\n\t/******/ \treturn __webpack_require__(0);\n\t/******/ })\n\t/************************************************************************/\n\t/******/ ([\n\t/* 0 */\n\t/***/ (function(module, exports, __webpack_require__) {\n\t\n\t\tmodule.exports = __webpack_require__(1);\n\t\n\t\n\t/***/ }),\n\t/* 1 */\n\t/***/ (function(module, exports, __webpack_require__) {\n\t\n\t\t'use strict';\n\t\t\n\t\tObject.defineProperty(exports, \"__esModule\", {\n\t\t value: true\n\t\t});\n\t\t\n\t\tvar _utils = __webpack_require__(2);\n\t\t\n\t\tObject.defineProperty(exports, 'combineChunks', {\n\t\t enumerable: true,\n\t\t get: function get() {\n\t\t return _utils.combineChunks;\n\t\t }\n\t\t});\n\t\tObject.defineProperty(exports, 'fillInChunks', {\n\t\t enumerable: true,\n\t\t get: function get() {\n\t\t return _utils.fillInChunks;\n\t\t }\n\t\t});\n\t\tObject.defineProperty(exports, 'findAll', {\n\t\t enumerable: true,\n\t\t get: function get() {\n\t\t return _utils.findAll;\n\t\t }\n\t\t});\n\t\tObject.defineProperty(exports, 'findChunks', {\n\t\t enumerable: true,\n\t\t get: function get() {\n\t\t return _utils.findChunks;\n\t\t }\n\t\t});\n\t\n\t/***/ }),\n\t/* 2 */\n\t/***/ (function(module, exports) {\n\t\n\t\t'use strict';\n\t\t\n\t\tObject.defineProperty(exports, \"__esModule\", {\n\t\t value: true\n\t\t});\n\t\t/**\n\t\t * Creates an array of chunk objects representing both higlightable and non highlightable pieces of text that match each search word.\n\t\t * @return Array of \"chunks\" (where a Chunk is { start:number, end:number, highlight:boolean })\n\t\t */\n\t\tvar findAll = exports.findAll = function findAll(_ref) {\n\t\t var autoEscape = _ref.autoEscape,\n\t\t _ref$caseSensitive = _ref.caseSensitive,\n\t\t caseSensitive = _ref$caseSensitive === undefined ? false : _ref$caseSensitive,\n\t\t _ref$findChunks = _ref.findChunks,\n\t\t findChunks = _ref$findChunks === undefined ? defaultFindChunks : _ref$findChunks,\n\t\t sanitize = _ref.sanitize,\n\t\t searchWords = _ref.searchWords,\n\t\t textToHighlight = _ref.textToHighlight;\n\t\t return fillInChunks({\n\t\t chunksToHighlight: combineChunks({\n\t\t chunks: findChunks({\n\t\t autoEscape: autoEscape,\n\t\t caseSensitive: caseSensitive,\n\t\t sanitize: sanitize,\n\t\t searchWords: searchWords,\n\t\t textToHighlight: textToHighlight\n\t\t })\n\t\t }),\n\t\t totalLength: textToHighlight ? textToHighlight.length : 0\n\t\t });\n\t\t};\n\t\t\n\t\t/**\n\t\t * Takes an array of {start:number, end:number} objects and combines chunks that overlap into single chunks.\n\t\t * @return {start:number, end:number}[]\n\t\t */\n\t\tvar combineChunks = exports.combineChunks = function combineChunks(_ref2) {\n\t\t var chunks = _ref2.chunks;\n\t\t\n\t\t chunks = chunks.sort(function (first, second) {\n\t\t return first.start - second.start;\n\t\t }).reduce(function (processedChunks, nextChunk) {\n\t\t // First chunk just goes straight in the array...\n\t\t if (processedChunks.length === 0) {\n\t\t return [nextChunk];\n\t\t } else {\n\t\t // ... subsequent chunks get checked to see if they overlap...\n\t\t var prevChunk = processedChunks.pop();\n\t\t if (nextChunk.start <= prevChunk.end) {\n\t\t // It may be the case that prevChunk completely surrounds nextChunk, so take the\n\t\t // largest of the end indeces.\n\t\t var endIndex = Math.max(prevChunk.end, nextChunk.end);\n\t\t processedChunks.push({ start: prevChunk.start, end: endIndex });\n\t\t } else {\n\t\t processedChunks.push(prevChunk, nextChunk);\n\t\t }\n\t\t return processedChunks;\n\t\t }\n\t\t }, []);\n\t\t\n\t\t return chunks;\n\t\t};\n\t\t\n\t\t/**\n\t\t * Examine text for any matches.\n\t\t * If we find matches, add them to the returned array as a \"chunk\" object ({start:number, end:number}).\n\t\t * @return {start:number, end:number}[]\n\t\t */\n\t\tvar defaultFindChunks = function defaultFindChunks(_ref3) {\n\t\t var autoEscape = _ref3.autoEscape,\n\t\t caseSensitive = _ref3.caseSensitive,\n\t\t _ref3$sanitize = _ref3.sanitize,\n\t\t sanitize = _ref3$sanitize === undefined ? identity : _ref3$sanitize,\n\t\t searchWords = _ref3.searchWords,\n\t\t textToHighlight = _ref3.textToHighlight;\n\t\t\n\t\t textToHighlight = sanitize(textToHighlight);\n\t\t\n\t\t return searchWords.filter(function (searchWord) {\n\t\t return searchWord;\n\t\t }) // Remove empty words\n\t\t .reduce(function (chunks, searchWord) {\n\t\t searchWord = sanitize(searchWord);\n\t\t\n\t\t if (autoEscape) {\n\t\t searchWord = escapeRegExpFn(searchWord);\n\t\t }\n\t\t\n\t\t var regex = new RegExp(searchWord, caseSensitive ? 'g' : 'gi');\n\t\t\n\t\t var match = void 0;\n\t\t while (match = regex.exec(textToHighlight)) {\n\t\t var start = match.index;\n\t\t var end = regex.lastIndex;\n\t\t // We do not return zero-length matches\n\t\t if (end > start) {\n\t\t chunks.push({ start: start, end: end });\n\t\t }\n\t\t\n\t\t // Prevent browsers like Firefox from getting stuck in an infinite loop\n\t\t // See http://www.regexguru.com/2008/04/watch-out-for-zero-length-matches/\n\t\t if (match.index == regex.lastIndex) {\n\t\t regex.lastIndex++;\n\t\t }\n\t\t }\n\t\t\n\t\t return chunks;\n\t\t }, []);\n\t\t};\n\t\t// Allow the findChunks to be overridden in findAll,\n\t\t// but for backwards compatibility we export as the old name\n\t\texports.findChunks = defaultFindChunks;\n\t\t\n\t\t/**\n\t\t * Given a set of chunks to highlight, create an additional set of chunks\n\t\t * to represent the bits of text between the highlighted text.\n\t\t * @param chunksToHighlight {start:number, end:number}[]\n\t\t * @param totalLength number\n\t\t * @return {start:number, end:number, highlight:boolean}[]\n\t\t */\n\t\t\n\t\tvar fillInChunks = exports.fillInChunks = function fillInChunks(_ref4) {\n\t\t var chunksToHighlight = _ref4.chunksToHighlight,\n\t\t totalLength = _ref4.totalLength;\n\t\t\n\t\t var allChunks = [];\n\t\t var append = function append(start, end, highlight) {\n\t\t if (end - start > 0) {\n\t\t allChunks.push({\n\t\t start: start,\n\t\t end: end,\n\t\t highlight: highlight\n\t\t });\n\t\t }\n\t\t };\n\t\t\n\t\t if (chunksToHighlight.length === 0) {\n\t\t append(0, totalLength, false);\n\t\t } else {\n\t\t var lastIndex = 0;\n\t\t chunksToHighlight.forEach(function (chunk) {\n\t\t append(lastIndex, chunk.start, false);\n\t\t append(chunk.start, chunk.end, true);\n\t\t lastIndex = chunk.end;\n\t\t });\n\t\t append(lastIndex, totalLength, false);\n\t\t }\n\t\t return allChunks;\n\t\t};\n\t\t\n\t\tfunction identity(value) {\n\t\t return value;\n\t\t}\n\t\t\n\t\tfunction escapeRegExpFn(str) {\n\t\t return str.replace(/[\\-\\[\\]\\/\\{\\}\\(\\)\\*\\+\\?\\.\\\\\\^\\$\\|]/g, '\\\\$&');\n\t\t}\n\t\n\t/***/ })\n\t/******/ ]);\n\t//# sourceMappingURL=index.js.map\n\n/***/ }),\n/* 4 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\t/* WEBPACK VAR INJECTION */(function(process) {/**\n\t * Copyright (c) 2013-present, Facebook, Inc.\n\t *\n\t * This source code is licensed under the MIT license found in the\n\t * LICENSE file in the root directory of this source tree.\n\t */\n\t\n\tif (process.env.NODE_ENV !== 'production') {\n\t var REACT_ELEMENT_TYPE = (typeof Symbol === 'function' &&\n\t Symbol.for &&\n\t Symbol.for('react.element')) ||\n\t 0xeac7;\n\t\n\t var isValidElement = function(object) {\n\t return typeof object === 'object' &&\n\t object !== null &&\n\t object.$$typeof === REACT_ELEMENT_TYPE;\n\t };\n\t\n\t // By explicitly using `prop-types` you are opting into new development behavior.\n\t // http://fb.me/prop-types-in-prod\n\t var throwOnDirectAccess = true;\n\t module.exports = __webpack_require__(6)(isValidElement, throwOnDirectAccess);\n\t} else {\n\t // By explicitly using `prop-types` you are opting into new production behavior.\n\t // http://fb.me/prop-types-in-prod\n\t module.exports = __webpack_require__(13)();\n\t}\n\t\n\t/* WEBPACK VAR INJECTION */}.call(exports, __webpack_require__(5)))\n\n/***/ }),\n/* 5 */\n/***/ (function(module, exports) {\n\n\t// shim for using process in browser\n\tvar process = module.exports = {};\n\t\n\t// cached from whatever global is present so that test runners that stub it\n\t// don't break things. But we need to wrap it in a try catch in case it is\n\t// wrapped in strict mode code which doesn't define any globals. It's inside a\n\t// function because try/catches deoptimize in certain engines.\n\t\n\tvar cachedSetTimeout;\n\tvar cachedClearTimeout;\n\t\n\tfunction defaultSetTimout() {\n\t throw new Error('setTimeout has not been defined');\n\t}\n\tfunction defaultClearTimeout () {\n\t throw new Error('clearTimeout has not been defined');\n\t}\n\t(function () {\n\t try {\n\t if (typeof setTimeout === 'function') {\n\t cachedSetTimeout = setTimeout;\n\t } else {\n\t cachedSetTimeout = defaultSetTimout;\n\t }\n\t } catch (e) {\n\t cachedSetTimeout = defaultSetTimout;\n\t }\n\t try {\n\t if (typeof clearTimeout === 'function') {\n\t cachedClearTimeout = clearTimeout;\n\t } else {\n\t cachedClearTimeout = defaultClearTimeout;\n\t }\n\t } catch (e) {\n\t cachedClearTimeout = defaultClearTimeout;\n\t }\n\t} ())\n\tfunction runTimeout(fun) {\n\t if (cachedSetTimeout === setTimeout) {\n\t //normal enviroments in sane situations\n\t return setTimeout(fun, 0);\n\t }\n\t // if setTimeout wasn't available but was latter defined\n\t if ((cachedSetTimeout === defaultSetTimout || !cachedSetTimeout) && setTimeout) {\n\t cachedSetTimeout = setTimeout;\n\t return setTimeout(fun, 0);\n\t }\n\t try {\n\t // when when somebody has screwed with setTimeout but no I.E. maddness\n\t return cachedSetTimeout(fun, 0);\n\t } catch(e){\n\t try {\n\t // When we are in I.E. but the script has been evaled so I.E. doesn't trust the global object when called normally\n\t return cachedSetTimeout.call(null, fun, 0);\n\t } catch(e){\n\t // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error\n\t return cachedSetTimeout.call(this, fun, 0);\n\t }\n\t }\n\t\n\t\n\t}\n\tfunction runClearTimeout(marker) {\n\t if (cachedClearTimeout === clearTimeout) {\n\t //normal enviroments in sane situations\n\t return clearTimeout(marker);\n\t }\n\t // if clearTimeout wasn't available but was latter defined\n\t if ((cachedClearTimeout === defaultClearTimeout || !cachedClearTimeout) && clearTimeout) {\n\t cachedClearTimeout = clearTimeout;\n\t return clearTimeout(marker);\n\t }\n\t try {\n\t // when when somebody has screwed with setTimeout but no I.E. maddness\n\t return cachedClearTimeout(marker);\n\t } catch (e){\n\t try {\n\t // When we are in I.E. but the script has been evaled so I.E. doesn't trust the global object when called normally\n\t return cachedClearTimeout.call(null, marker);\n\t } catch (e){\n\t // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error.\n\t // Some versions of I.E. have different rules for clearTimeout vs setTimeout\n\t return cachedClearTimeout.call(this, marker);\n\t }\n\t }\n\t\n\t\n\t\n\t}\n\tvar queue = [];\n\tvar draining = false;\n\tvar currentQueue;\n\tvar queueIndex = -1;\n\t\n\tfunction cleanUpNextTick() {\n\t if (!draining || !currentQueue) {\n\t return;\n\t }\n\t draining = false;\n\t if (currentQueue.length) {\n\t queue = currentQueue.concat(queue);\n\t } else {\n\t queueIndex = -1;\n\t }\n\t if (queue.length) {\n\t drainQueue();\n\t }\n\t}\n\t\n\tfunction drainQueue() {\n\t if (draining) {\n\t return;\n\t }\n\t var timeout = runTimeout(cleanUpNextTick);\n\t draining = true;\n\t\n\t var len = queue.length;\n\t while(len) {\n\t currentQueue = queue;\n\t queue = [];\n\t while (++queueIndex < len) {\n\t if (currentQueue) {\n\t currentQueue[queueIndex].run();\n\t }\n\t }\n\t queueIndex = -1;\n\t len = queue.length;\n\t }\n\t currentQueue = null;\n\t draining = false;\n\t runClearTimeout(timeout);\n\t}\n\t\n\tprocess.nextTick = function (fun) {\n\t var args = new Array(arguments.length - 1);\n\t if (arguments.length > 1) {\n\t for (var i = 1; i < arguments.length; i++) {\n\t args[i - 1] = arguments[i];\n\t }\n\t }\n\t queue.push(new Item(fun, args));\n\t if (queue.length === 1 && !draining) {\n\t runTimeout(drainQueue);\n\t }\n\t};\n\t\n\t// v8 likes predictible objects\n\tfunction Item(fun, array) {\n\t this.fun = fun;\n\t this.array = array;\n\t}\n\tItem.prototype.run = function () {\n\t this.fun.apply(null, this.array);\n\t};\n\tprocess.title = 'browser';\n\tprocess.browser = true;\n\tprocess.env = {};\n\tprocess.argv = [];\n\tprocess.version = ''; // empty string to avoid regexp issues\n\tprocess.versions = {};\n\t\n\tfunction noop() {}\n\t\n\tprocess.on = noop;\n\tprocess.addListener = noop;\n\tprocess.once = noop;\n\tprocess.off = noop;\n\tprocess.removeListener = noop;\n\tprocess.removeAllListeners = noop;\n\tprocess.emit = noop;\n\tprocess.prependListener = noop;\n\tprocess.prependOnceListener = noop;\n\t\n\tprocess.listeners = function (name) { return [] }\n\t\n\tprocess.binding = function (name) {\n\t throw new Error('process.binding is not supported');\n\t};\n\t\n\tprocess.cwd = function () { return '/' };\n\tprocess.chdir = function (dir) {\n\t throw new Error('process.chdir is not supported');\n\t};\n\tprocess.umask = function() { return 0; };\n\n\n/***/ }),\n/* 6 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\t/* WEBPACK VAR INJECTION */(function(process) {/**\n\t * Copyright (c) 2013-present, Facebook, Inc.\n\t *\n\t * This source code is licensed under the MIT license found in the\n\t * LICENSE file in the root directory of this source tree.\n\t */\n\t\n\t'use strict';\n\t\n\tvar emptyFunction = __webpack_require__(7);\n\tvar invariant = __webpack_require__(8);\n\tvar warning = __webpack_require__(9);\n\tvar assign = __webpack_require__(10);\n\t\n\tvar ReactPropTypesSecret = __webpack_require__(11);\n\tvar checkPropTypes = __webpack_require__(12);\n\t\n\tmodule.exports = function(isValidElement, throwOnDirectAccess) {\n\t /* global Symbol */\n\t var ITERATOR_SYMBOL = typeof Symbol === 'function' && Symbol.iterator;\n\t var FAUX_ITERATOR_SYMBOL = '@@iterator'; // Before Symbol spec.\n\t\n\t /**\n\t * Returns the iterator method function contained on the iterable object.\n\t *\n\t * Be sure to invoke the function with the iterable as context:\n\t *\n\t * var iteratorFn = getIteratorFn(myIterable);\n\t * if (iteratorFn) {\n\t * var iterator = iteratorFn.call(myIterable);\n\t * ...\n\t * }\n\t *\n\t * @param {?object} maybeIterable\n\t * @return {?function}\n\t */\n\t function getIteratorFn(maybeIterable) {\n\t var iteratorFn = maybeIterable && (ITERATOR_SYMBOL && maybeIterable[ITERATOR_SYMBOL] || maybeIterable[FAUX_ITERATOR_SYMBOL]);\n\t if (typeof iteratorFn === 'function') {\n\t return iteratorFn;\n\t }\n\t }\n\t\n\t /**\n\t * Collection of methods that allow declaration and validation of props that are\n\t * supplied to React components. Example usage:\n\t *\n\t * var Props = require('ReactPropTypes');\n\t * var MyArticle = React.createClass({\n\t * propTypes: {\n\t * // An optional string prop named \"description\".\n\t * description: Props.string,\n\t *\n\t * // A required enum prop named \"category\".\n\t * category: Props.oneOf(['News','Photos']).isRequired,\n\t *\n\t * // A prop named \"dialog\" that requires an instance of Dialog.\n\t * dialog: Props.instanceOf(Dialog).isRequired\n\t * },\n\t * render: function() { ... }\n\t * });\n\t *\n\t * A more formal specification of how these methods are used:\n\t *\n\t * type := array|bool|func|object|number|string|oneOf([...])|instanceOf(...)\n\t * decl := ReactPropTypes.{type}(.isRequired)?\n\t *\n\t * Each and every declaration produces a function with the same signature. This\n\t * allows the creation of custom validation functions. For example:\n\t *\n\t * var MyLink = React.createClass({\n\t * propTypes: {\n\t * // An optional string or URI prop named \"href\".\n\t * href: function(props, propName, componentName) {\n\t * var propValue = props[propName];\n\t * if (propValue != null && typeof propValue !== 'string' &&\n\t * !(propValue instanceof URI)) {\n\t * return new Error(\n\t * 'Expected a string or an URI for ' + propName + ' in ' +\n\t * componentName\n\t * );\n\t * }\n\t * }\n\t * },\n\t * render: function() {...}\n\t * });\n\t *\n\t * @internal\n\t */\n\t\n\t var ANONYMOUS = '<>';\n\t\n\t // Important!\n\t // Keep this list in sync with production version in `./factoryWithThrowingShims.js`.\n\t var ReactPropTypes = {\n\t array: createPrimitiveTypeChecker('array'),\n\t bool: createPrimitiveTypeChecker('boolean'),\n\t func: createPrimitiveTypeChecker('function'),\n\t number: createPrimitiveTypeChecker('number'),\n\t object: createPrimitiveTypeChecker('object'),\n\t string: createPrimitiveTypeChecker('string'),\n\t symbol: createPrimitiveTypeChecker('symbol'),\n\t\n\t any: createAnyTypeChecker(),\n\t arrayOf: createArrayOfTypeChecker,\n\t element: createElementTypeChecker(),\n\t instanceOf: createInstanceTypeChecker,\n\t node: createNodeChecker(),\n\t objectOf: createObjectOfTypeChecker,\n\t oneOf: createEnumTypeChecker,\n\t oneOfType: createUnionTypeChecker,\n\t shape: createShapeTypeChecker,\n\t exact: createStrictShapeTypeChecker,\n\t };\n\t\n\t /**\n\t * inlined Object.is polyfill to avoid requiring consumers ship their own\n\t * https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/is\n\t */\n\t /*eslint-disable no-self-compare*/\n\t function is(x, y) {\n\t // SameValue algorithm\n\t if (x === y) {\n\t // Steps 1-5, 7-10\n\t // Steps 6.b-6.e: +0 != -0\n\t return x !== 0 || 1 / x === 1 / y;\n\t } else {\n\t // Step 6.a: NaN == NaN\n\t return x !== x && y !== y;\n\t }\n\t }\n\t /*eslint-enable no-self-compare*/\n\t\n\t /**\n\t * We use an Error-like object for backward compatibility as people may call\n\t * PropTypes directly and inspect their output. However, we don't use real\n\t * Errors anymore. We don't inspect their stack anyway, and creating them\n\t * is prohibitively expensive if they are created too often, such as what\n\t * happens in oneOfType() for any type before the one that matched.\n\t */\n\t function PropTypeError(message) {\n\t this.message = message;\n\t this.stack = '';\n\t }\n\t // Make `instanceof Error` still work for returned errors.\n\t PropTypeError.prototype = Error.prototype;\n\t\n\t function createChainableTypeChecker(validate) {\n\t if (process.env.NODE_ENV !== 'production') {\n\t var manualPropTypeCallCache = {};\n\t var manualPropTypeWarningCount = 0;\n\t }\n\t function checkType(isRequired, props, propName, componentName, location, propFullName, secret) {\n\t componentName = componentName || ANONYMOUS;\n\t propFullName = propFullName || propName;\n\t\n\t if (secret !== ReactPropTypesSecret) {\n\t if (throwOnDirectAccess) {\n\t // New behavior only for users of `prop-types` package\n\t invariant(\n\t false,\n\t 'Calling PropTypes validators directly is not supported by the `prop-types` package. ' +\n\t 'Use `PropTypes.checkPropTypes()` to call them. ' +\n\t 'Read more at http://fb.me/use-check-prop-types'\n\t );\n\t } else if (process.env.NODE_ENV !== 'production' && typeof console !== 'undefined') {\n\t // Old behavior for people using React.PropTypes\n\t var cacheKey = componentName + ':' + propName;\n\t if (\n\t !manualPropTypeCallCache[cacheKey] &&\n\t // Avoid spamming the console because they are often not actionable except for lib authors\n\t manualPropTypeWarningCount < 3\n\t ) {\n\t warning(\n\t false,\n\t 'You are manually calling a React.PropTypes validation ' +\n\t 'function for the `%s` prop on `%s`. This is deprecated ' +\n\t 'and will throw in the standalone `prop-types` package. ' +\n\t 'You may be seeing this warning due to a third-party PropTypes ' +\n\t 'library. See https://fb.me/react-warning-dont-call-proptypes ' + 'for details.',\n\t propFullName,\n\t componentName\n\t );\n\t manualPropTypeCallCache[cacheKey] = true;\n\t manualPropTypeWarningCount++;\n\t }\n\t }\n\t }\n\t if (props[propName] == null) {\n\t if (isRequired) {\n\t if (props[propName] === null) {\n\t return new PropTypeError('The ' + location + ' `' + propFullName + '` is marked as required ' + ('in `' + componentName + '`, but its value is `null`.'));\n\t }\n\t return new PropTypeError('The ' + location + ' `' + propFullName + '` is marked as required in ' + ('`' + componentName + '`, but its value is `undefined`.'));\n\t }\n\t return null;\n\t } else {\n\t return validate(props, propName, componentName, location, propFullName);\n\t }\n\t }\n\t\n\t var chainedCheckType = checkType.bind(null, false);\n\t chainedCheckType.isRequired = checkType.bind(null, true);\n\t\n\t return chainedCheckType;\n\t }\n\t\n\t function createPrimitiveTypeChecker(expectedType) {\n\t function validate(props, propName, componentName, location, propFullName, secret) {\n\t var propValue = props[propName];\n\t var propType = getPropType(propValue);\n\t if (propType !== expectedType) {\n\t // `propValue` being instance of, say, date/regexp, pass the 'object'\n\t // check, but we can offer a more precise error message here rather than\n\t // 'of type `object`'.\n\t var preciseType = getPreciseType(propValue);\n\t\n\t return new PropTypeError('Invalid ' + location + ' `' + propFullName + '` of type ' + ('`' + preciseType + '` supplied to `' + componentName + '`, expected ') + ('`' + expectedType + '`.'));\n\t }\n\t return null;\n\t }\n\t return createChainableTypeChecker(validate);\n\t }\n\t\n\t function createAnyTypeChecker() {\n\t return createChainableTypeChecker(emptyFunction.thatReturnsNull);\n\t }\n\t\n\t function createArrayOfTypeChecker(typeChecker) {\n\t function validate(props, propName, componentName, location, propFullName) {\n\t if (typeof typeChecker !== 'function') {\n\t return new PropTypeError('Property `' + propFullName + '` of component `' + componentName + '` has invalid PropType notation inside arrayOf.');\n\t }\n\t var propValue = props[propName];\n\t if (!Array.isArray(propValue)) {\n\t var propType = getPropType(propValue);\n\t return new PropTypeError('Invalid ' + location + ' `' + propFullName + '` of type ' + ('`' + propType + '` supplied to `' + componentName + '`, expected an array.'));\n\t }\n\t for (var i = 0; i < propValue.length; i++) {\n\t var error = typeChecker(propValue, i, componentName, location, propFullName + '[' + i + ']', ReactPropTypesSecret);\n\t if (error instanceof Error) {\n\t return error;\n\t }\n\t }\n\t return null;\n\t }\n\t return createChainableTypeChecker(validate);\n\t }\n\t\n\t function createElementTypeChecker() {\n\t function validate(props, propName, componentName, location, propFullName) {\n\t var propValue = props[propName];\n\t if (!isValidElement(propValue)) {\n\t var propType = getPropType(propValue);\n\t return new PropTypeError('Invalid ' + location + ' `' + propFullName + '` of type ' + ('`' + propType + '` supplied to `' + componentName + '`, expected a single ReactElement.'));\n\t }\n\t return null;\n\t }\n\t return createChainableTypeChecker(validate);\n\t }\n\t\n\t function createInstanceTypeChecker(expectedClass) {\n\t function validate(props, propName, componentName, location, propFullName) {\n\t if (!(props[propName] instanceof expectedClass)) {\n\t var expectedClassName = expectedClass.name || ANONYMOUS;\n\t var actualClassName = getClassName(props[propName]);\n\t return new PropTypeError('Invalid ' + location + ' `' + propFullName + '` of type ' + ('`' + actualClassName + '` supplied to `' + componentName + '`, expected ') + ('instance of `' + expectedClassName + '`.'));\n\t }\n\t return null;\n\t }\n\t return createChainableTypeChecker(validate);\n\t }\n\t\n\t function createEnumTypeChecker(expectedValues) {\n\t if (!Array.isArray(expectedValues)) {\n\t process.env.NODE_ENV !== 'production' ? warning(false, 'Invalid argument supplied to oneOf, expected an instance of array.') : void 0;\n\t return emptyFunction.thatReturnsNull;\n\t }\n\t\n\t function validate(props, propName, componentName, location, propFullName) {\n\t var propValue = props[propName];\n\t for (var i = 0; i < expectedValues.length; i++) {\n\t if (is(propValue, expectedValues[i])) {\n\t return null;\n\t }\n\t }\n\t\n\t var valuesString = JSON.stringify(expectedValues);\n\t return new PropTypeError('Invalid ' + location + ' `' + propFullName + '` of value `' + propValue + '` ' + ('supplied to `' + componentName + '`, expected one of ' + valuesString + '.'));\n\t }\n\t return createChainableTypeChecker(validate);\n\t }\n\t\n\t function createObjectOfTypeChecker(typeChecker) {\n\t function validate(props, propName, componentName, location, propFullName) {\n\t if (typeof typeChecker !== 'function') {\n\t return new PropTypeError('Property `' + propFullName + '` of component `' + componentName + '` has invalid PropType notation inside objectOf.');\n\t }\n\t var propValue = props[propName];\n\t var propType = getPropType(propValue);\n\t if (propType !== 'object') {\n\t return new PropTypeError('Invalid ' + location + ' `' + propFullName + '` of type ' + ('`' + propType + '` supplied to `' + componentName + '`, expected an object.'));\n\t }\n\t for (var key in propValue) {\n\t if (propValue.hasOwnProperty(key)) {\n\t var error = typeChecker(propValue, key, componentName, location, propFullName + '.' + key, ReactPropTypesSecret);\n\t if (error instanceof Error) {\n\t return error;\n\t }\n\t }\n\t }\n\t return null;\n\t }\n\t return createChainableTypeChecker(validate);\n\t }\n\t\n\t function createUnionTypeChecker(arrayOfTypeCheckers) {\n\t if (!Array.isArray(arrayOfTypeCheckers)) {\n\t process.env.NODE_ENV !== 'production' ? warning(false, 'Invalid argument supplied to oneOfType, expected an instance of array.') : void 0;\n\t return emptyFunction.thatReturnsNull;\n\t }\n\t\n\t for (var i = 0; i < arrayOfTypeCheckers.length; i++) {\n\t var checker = arrayOfTypeCheckers[i];\n\t if (typeof checker !== 'function') {\n\t warning(\n\t false,\n\t 'Invalid argument supplied to oneOfType. Expected an array of check functions, but ' +\n\t 'received %s at index %s.',\n\t getPostfixForTypeWarning(checker),\n\t i\n\t );\n\t return emptyFunction.thatReturnsNull;\n\t }\n\t }\n\t\n\t function validate(props, propName, componentName, location, propFullName) {\n\t for (var i = 0; i < arrayOfTypeCheckers.length; i++) {\n\t var checker = arrayOfTypeCheckers[i];\n\t if (checker(props, propName, componentName, location, propFullName, ReactPropTypesSecret) == null) {\n\t return null;\n\t }\n\t }\n\t\n\t return new PropTypeError('Invalid ' + location + ' `' + propFullName + '` supplied to ' + ('`' + componentName + '`.'));\n\t }\n\t return createChainableTypeChecker(validate);\n\t }\n\t\n\t function createNodeChecker() {\n\t function validate(props, propName, componentName, location, propFullName) {\n\t if (!isNode(props[propName])) {\n\t return new PropTypeError('Invalid ' + location + ' `' + propFullName + '` supplied to ' + ('`' + componentName + '`, expected a ReactNode.'));\n\t }\n\t return null;\n\t }\n\t return createChainableTypeChecker(validate);\n\t }\n\t\n\t function createShapeTypeChecker(shapeTypes) {\n\t function validate(props, propName, componentName, location, propFullName) {\n\t var propValue = props[propName];\n\t var propType = getPropType(propValue);\n\t if (propType !== 'object') {\n\t return new PropTypeError('Invalid ' + location + ' `' + propFullName + '` of type `' + propType + '` ' + ('supplied to `' + componentName + '`, expected `object`.'));\n\t }\n\t for (var key in shapeTypes) {\n\t var checker = shapeTypes[key];\n\t if (!checker) {\n\t continue;\n\t }\n\t var error = checker(propValue, key, componentName, location, propFullName + '.' + key, ReactPropTypesSecret);\n\t if (error) {\n\t return error;\n\t }\n\t }\n\t return null;\n\t }\n\t return createChainableTypeChecker(validate);\n\t }\n\t\n\t function createStrictShapeTypeChecker(shapeTypes) {\n\t function validate(props, propName, componentName, location, propFullName) {\n\t var propValue = props[propName];\n\t var propType = getPropType(propValue);\n\t if (propType !== 'object') {\n\t return new PropTypeError('Invalid ' + location + ' `' + propFullName + '` of type `' + propType + '` ' + ('supplied to `' + componentName + '`, expected `object`.'));\n\t }\n\t // We need to check all keys in case some are required but missing from\n\t // props.\n\t var allKeys = assign({}, props[propName], shapeTypes);\n\t for (var key in allKeys) {\n\t var checker = shapeTypes[key];\n\t if (!checker) {\n\t return new PropTypeError(\n\t 'Invalid ' + location + ' `' + propFullName + '` key `' + key + '` supplied to `' + componentName + '`.' +\n\t '\\nBad object: ' + JSON.stringify(props[propName], null, ' ') +\n\t '\\nValid keys: ' + JSON.stringify(Object.keys(shapeTypes), null, ' ')\n\t );\n\t }\n\t var error = checker(propValue, key, componentName, location, propFullName + '.' + key, ReactPropTypesSecret);\n\t if (error) {\n\t return error;\n\t }\n\t }\n\t return null;\n\t }\n\t\n\t return createChainableTypeChecker(validate);\n\t }\n\t\n\t function isNode(propValue) {\n\t switch (typeof propValue) {\n\t case 'number':\n\t case 'string':\n\t case 'undefined':\n\t return true;\n\t case 'boolean':\n\t return !propValue;\n\t case 'object':\n\t if (Array.isArray(propValue)) {\n\t return propValue.every(isNode);\n\t }\n\t if (propValue === null || isValidElement(propValue)) {\n\t return true;\n\t }\n\t\n\t var iteratorFn = getIteratorFn(propValue);\n\t if (iteratorFn) {\n\t var iterator = iteratorFn.call(propValue);\n\t var step;\n\t if (iteratorFn !== propValue.entries) {\n\t while (!(step = iterator.next()).done) {\n\t if (!isNode(step.value)) {\n\t return false;\n\t }\n\t }\n\t } else {\n\t // Iterator will provide entry [k,v] tuples rather than values.\n\t while (!(step = iterator.next()).done) {\n\t var entry = step.value;\n\t if (entry) {\n\t if (!isNode(entry[1])) {\n\t return false;\n\t }\n\t }\n\t }\n\t }\n\t } else {\n\t return false;\n\t }\n\t\n\t return true;\n\t default:\n\t return false;\n\t }\n\t }\n\t\n\t function isSymbol(propType, propValue) {\n\t // Native Symbol.\n\t if (propType === 'symbol') {\n\t return true;\n\t }\n\t\n\t // 19.4.3.5 Symbol.prototype[@@toStringTag] === 'Symbol'\n\t if (propValue['@@toStringTag'] === 'Symbol') {\n\t return true;\n\t }\n\t\n\t // Fallback for non-spec compliant Symbols which are polyfilled.\n\t if (typeof Symbol === 'function' && propValue instanceof Symbol) {\n\t return true;\n\t }\n\t\n\t return false;\n\t }\n\t\n\t // Equivalent of `typeof` but with special handling for array and regexp.\n\t function getPropType(propValue) {\n\t var propType = typeof propValue;\n\t if (Array.isArray(propValue)) {\n\t return 'array';\n\t }\n\t if (propValue instanceof RegExp) {\n\t // Old webkits (at least until Android 4.0) return 'function' rather than\n\t // 'object' for typeof a RegExp. We'll normalize this here so that /bla/\n\t // passes PropTypes.object.\n\t return 'object';\n\t }\n\t if (isSymbol(propType, propValue)) {\n\t return 'symbol';\n\t }\n\t return propType;\n\t }\n\t\n\t // This handles more types than `getPropType`. Only used for error messages.\n\t // See `createPrimitiveTypeChecker`.\n\t function getPreciseType(propValue) {\n\t if (typeof propValue === 'undefined' || propValue === null) {\n\t return '' + propValue;\n\t }\n\t var propType = getPropType(propValue);\n\t if (propType === 'object') {\n\t if (propValue instanceof Date) {\n\t return 'date';\n\t } else if (propValue instanceof RegExp) {\n\t return 'regexp';\n\t }\n\t }\n\t return propType;\n\t }\n\t\n\t // Returns a string that is postfixed to a warning about an invalid type.\n\t // For example, \"undefined\" or \"of type array\"\n\t function getPostfixForTypeWarning(value) {\n\t var type = getPreciseType(value);\n\t switch (type) {\n\t case 'array':\n\t case 'object':\n\t return 'an ' + type;\n\t case 'boolean':\n\t case 'date':\n\t case 'regexp':\n\t return 'a ' + type;\n\t default:\n\t return type;\n\t }\n\t }\n\t\n\t // Returns class name of the object, if any.\n\t function getClassName(propValue) {\n\t if (!propValue.constructor || !propValue.constructor.name) {\n\t return ANONYMOUS;\n\t }\n\t return propValue.constructor.name;\n\t }\n\t\n\t ReactPropTypes.checkPropTypes = checkPropTypes;\n\t ReactPropTypes.PropTypes = ReactPropTypes;\n\t\n\t return ReactPropTypes;\n\t};\n\t\n\t/* WEBPACK VAR INJECTION */}.call(exports, __webpack_require__(5)))\n\n/***/ }),\n/* 7 */\n/***/ (function(module, exports) {\n\n\t\"use strict\";\n\t\n\t/**\n\t * Copyright (c) 2013-present, Facebook, Inc.\n\t *\n\t * This source code is licensed under the MIT license found in the\n\t * LICENSE file in the root directory of this source tree.\n\t *\n\t * \n\t */\n\t\n\tfunction makeEmptyFunction(arg) {\n\t return function () {\n\t return arg;\n\t };\n\t}\n\t\n\t/**\n\t * This function accepts and discards inputs; it has no side effects. This is\n\t * primarily useful idiomatically for overridable function endpoints which\n\t * always need to be callable, since JS lacks a null-call idiom ala Cocoa.\n\t */\n\tvar emptyFunction = function emptyFunction() {};\n\t\n\temptyFunction.thatReturns = makeEmptyFunction;\n\temptyFunction.thatReturnsFalse = makeEmptyFunction(false);\n\temptyFunction.thatReturnsTrue = makeEmptyFunction(true);\n\temptyFunction.thatReturnsNull = makeEmptyFunction(null);\n\temptyFunction.thatReturnsThis = function () {\n\t return this;\n\t};\n\temptyFunction.thatReturnsArgument = function (arg) {\n\t return arg;\n\t};\n\t\n\tmodule.exports = emptyFunction;\n\n/***/ }),\n/* 8 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\t/* WEBPACK VAR INJECTION */(function(process) {/**\n\t * Copyright (c) 2013-present, Facebook, Inc.\n\t *\n\t * This source code is licensed under the MIT license found in the\n\t * LICENSE file in the root directory of this source tree.\n\t *\n\t */\n\t\n\t'use strict';\n\t\n\t/**\n\t * Use invariant() to assert state which your program assumes to be true.\n\t *\n\t * Provide sprintf-style format (only %s is supported) and arguments\n\t * to provide information about what broke and what you were\n\t * expecting.\n\t *\n\t * The invariant message will be stripped in production, but the invariant\n\t * will remain to ensure logic does not differ in production.\n\t */\n\t\n\tvar validateFormat = function validateFormat(format) {};\n\t\n\tif (process.env.NODE_ENV !== 'production') {\n\t validateFormat = function validateFormat(format) {\n\t if (format === undefined) {\n\t throw new Error('invariant requires an error message argument');\n\t }\n\t };\n\t}\n\t\n\tfunction invariant(condition, format, a, b, c, d, e, f) {\n\t validateFormat(format);\n\t\n\t if (!condition) {\n\t var error;\n\t if (format === undefined) {\n\t error = new Error('Minified exception occurred; use the non-minified dev environment ' + 'for the full error message and additional helpful warnings.');\n\t } else {\n\t var args = [a, b, c, d, e, f];\n\t var argIndex = 0;\n\t error = new Error(format.replace(/%s/g, function () {\n\t return args[argIndex++];\n\t }));\n\t error.name = 'Invariant Violation';\n\t }\n\t\n\t error.framesToPop = 1; // we don't care about invariant's own frame\n\t throw error;\n\t }\n\t}\n\t\n\tmodule.exports = invariant;\n\t/* WEBPACK VAR INJECTION */}.call(exports, __webpack_require__(5)))\n\n/***/ }),\n/* 9 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\t/* WEBPACK VAR INJECTION */(function(process) {/**\n\t * Copyright (c) 2014-present, Facebook, Inc.\n\t *\n\t * This source code is licensed under the MIT license found in the\n\t * LICENSE file in the root directory of this source tree.\n\t *\n\t */\n\t\n\t'use strict';\n\t\n\tvar emptyFunction = __webpack_require__(7);\n\t\n\t/**\n\t * Similar to invariant but only logs a warning if the condition is not met.\n\t * This can be used to log issues in development environments in critical\n\t * paths. Removing the logging code for production environments will keep the\n\t * same logic and follow the same code paths.\n\t */\n\t\n\tvar warning = emptyFunction;\n\t\n\tif (process.env.NODE_ENV !== 'production') {\n\t var printWarning = function printWarning(format) {\n\t for (var _len = arguments.length, args = Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {\n\t args[_key - 1] = arguments[_key];\n\t }\n\t\n\t var argIndex = 0;\n\t var message = 'Warning: ' + format.replace(/%s/g, function () {\n\t return args[argIndex++];\n\t });\n\t if (typeof console !== 'undefined') {\n\t console.error(message);\n\t }\n\t try {\n\t // --- Welcome to debugging React ---\n\t // This error was thrown as a convenience so that you can use this stack\n\t // to find the callsite that caused this warning to fire.\n\t throw new Error(message);\n\t } catch (x) {}\n\t };\n\t\n\t warning = function warning(condition, format) {\n\t if (format === undefined) {\n\t throw new Error('`warning(condition, format, ...args)` requires a warning ' + 'message argument');\n\t }\n\t\n\t if (format.indexOf('Failed Composite propType: ') === 0) {\n\t return; // Ignore CompositeComponent proptype check.\n\t }\n\t\n\t if (!condition) {\n\t for (var _len2 = arguments.length, args = Array(_len2 > 2 ? _len2 - 2 : 0), _key2 = 2; _key2 < _len2; _key2++) {\n\t args[_key2 - 2] = arguments[_key2];\n\t }\n\t\n\t printWarning.apply(undefined, [format].concat(args));\n\t }\n\t };\n\t}\n\t\n\tmodule.exports = warning;\n\t/* WEBPACK VAR INJECTION */}.call(exports, __webpack_require__(5)))\n\n/***/ }),\n/* 10 */\n/***/ (function(module, exports) {\n\n\t/*\n\tobject-assign\n\t(c) Sindre Sorhus\n\t@license MIT\n\t*/\n\t\n\t'use strict';\n\t/* eslint-disable no-unused-vars */\n\tvar getOwnPropertySymbols = Object.getOwnPropertySymbols;\n\tvar hasOwnProperty = Object.prototype.hasOwnProperty;\n\tvar propIsEnumerable = Object.prototype.propertyIsEnumerable;\n\t\n\tfunction toObject(val) {\n\t\tif (val === null || val === undefined) {\n\t\t\tthrow new TypeError('Object.assign cannot be called with null or undefined');\n\t\t}\n\t\n\t\treturn Object(val);\n\t}\n\t\n\tfunction shouldUseNative() {\n\t\ttry {\n\t\t\tif (!Object.assign) {\n\t\t\t\treturn false;\n\t\t\t}\n\t\n\t\t\t// Detect buggy property enumeration order in older V8 versions.\n\t\n\t\t\t// https://bugs.chromium.org/p/v8/issues/detail?id=4118\n\t\t\tvar test1 = new String('abc'); // eslint-disable-line no-new-wrappers\n\t\t\ttest1[5] = 'de';\n\t\t\tif (Object.getOwnPropertyNames(test1)[0] === '5') {\n\t\t\t\treturn false;\n\t\t\t}\n\t\n\t\t\t// https://bugs.chromium.org/p/v8/issues/detail?id=3056\n\t\t\tvar test2 = {};\n\t\t\tfor (var i = 0; i < 10; i++) {\n\t\t\t\ttest2['_' + String.fromCharCode(i)] = i;\n\t\t\t}\n\t\t\tvar order2 = Object.getOwnPropertyNames(test2).map(function (n) {\n\t\t\t\treturn test2[n];\n\t\t\t});\n\t\t\tif (order2.join('') !== '0123456789') {\n\t\t\t\treturn false;\n\t\t\t}\n\t\n\t\t\t// https://bugs.chromium.org/p/v8/issues/detail?id=3056\n\t\t\tvar test3 = {};\n\t\t\t'abcdefghijklmnopqrst'.split('').forEach(function (letter) {\n\t\t\t\ttest3[letter] = letter;\n\t\t\t});\n\t\t\tif (Object.keys(Object.assign({}, test3)).join('') !==\n\t\t\t\t\t'abcdefghijklmnopqrst') {\n\t\t\t\treturn false;\n\t\t\t}\n\t\n\t\t\treturn true;\n\t\t} catch (err) {\n\t\t\t// We don't expect any of the above to throw, but better to be safe.\n\t\t\treturn false;\n\t\t}\n\t}\n\t\n\tmodule.exports = shouldUseNative() ? Object.assign : function (target, source) {\n\t\tvar from;\n\t\tvar to = toObject(target);\n\t\tvar symbols;\n\t\n\t\tfor (var s = 1; s < arguments.length; s++) {\n\t\t\tfrom = Object(arguments[s]);\n\t\n\t\t\tfor (var key in from) {\n\t\t\t\tif (hasOwnProperty.call(from, key)) {\n\t\t\t\t\tto[key] = from[key];\n\t\t\t\t}\n\t\t\t}\n\t\n\t\t\tif (getOwnPropertySymbols) {\n\t\t\t\tsymbols = getOwnPropertySymbols(from);\n\t\t\t\tfor (var i = 0; i < symbols.length; i++) {\n\t\t\t\t\tif (propIsEnumerable.call(from, symbols[i])) {\n\t\t\t\t\t\tto[symbols[i]] = from[symbols[i]];\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t\n\t\treturn to;\n\t};\n\n\n/***/ }),\n/* 11 */\n/***/ (function(module, exports) {\n\n\t/**\n\t * Copyright (c) 2013-present, Facebook, Inc.\n\t *\n\t * This source code is licensed under the MIT license found in the\n\t * LICENSE file in the root directory of this source tree.\n\t */\n\t\n\t'use strict';\n\t\n\tvar ReactPropTypesSecret = 'SECRET_DO_NOT_PASS_THIS_OR_YOU_WILL_BE_FIRED';\n\t\n\tmodule.exports = ReactPropTypesSecret;\n\n\n/***/ }),\n/* 12 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\t/* WEBPACK VAR INJECTION */(function(process) {/**\n\t * Copyright (c) 2013-present, Facebook, Inc.\n\t *\n\t * This source code is licensed under the MIT license found in the\n\t * LICENSE file in the root directory of this source tree.\n\t */\n\t\n\t'use strict';\n\t\n\tif (process.env.NODE_ENV !== 'production') {\n\t var invariant = __webpack_require__(8);\n\t var warning = __webpack_require__(9);\n\t var ReactPropTypesSecret = __webpack_require__(11);\n\t var loggedTypeFailures = {};\n\t}\n\t\n\t/**\n\t * Assert that the values match with the type specs.\n\t * Error messages are memorized and will only be shown once.\n\t *\n\t * @param {object} typeSpecs Map of name to a ReactPropType\n\t * @param {object} values Runtime values that need to be type-checked\n\t * @param {string} location e.g. \"prop\", \"context\", \"child context\"\n\t * @param {string} componentName Name of the component for error messages.\n\t * @param {?Function} getStack Returns the component stack.\n\t * @private\n\t */\n\tfunction checkPropTypes(typeSpecs, values, location, componentName, getStack) {\n\t if (process.env.NODE_ENV !== 'production') {\n\t for (var typeSpecName in typeSpecs) {\n\t if (typeSpecs.hasOwnProperty(typeSpecName)) {\n\t var error;\n\t // Prop type validation may throw. In case they do, we don't want to\n\t // fail the render phase where it didn't fail before. So we log it.\n\t // After these have been cleaned up, we'll let them throw.\n\t try {\n\t // This is intentionally an invariant that gets caught. It's the same\n\t // behavior as without this statement except with a better message.\n\t invariant(typeof typeSpecs[typeSpecName] === 'function', '%s: %s type `%s` is invalid; it must be a function, usually from ' + 'the `prop-types` package, but received `%s`.', componentName || 'React class', location, typeSpecName, typeof typeSpecs[typeSpecName]);\n\t error = typeSpecs[typeSpecName](values, typeSpecName, componentName, location, null, ReactPropTypesSecret);\n\t } catch (ex) {\n\t error = ex;\n\t }\n\t warning(!error || error instanceof Error, '%s: type specification of %s `%s` is invalid; the type checker ' + 'function must return `null` or an `Error` but returned a %s. ' + 'You may have forgotten to pass an argument to the type checker ' + 'creator (arrayOf, instanceOf, objectOf, oneOf, oneOfType, and ' + 'shape all require an argument).', componentName || 'React class', location, typeSpecName, typeof error);\n\t if (error instanceof Error && !(error.message in loggedTypeFailures)) {\n\t // Only monitor this failure once because there tends to be a lot of the\n\t // same error.\n\t loggedTypeFailures[error.message] = true;\n\t\n\t var stack = getStack ? getStack() : '';\n\t\n\t warning(false, 'Failed %s type: %s%s', location, error.message, stack != null ? stack : '');\n\t }\n\t }\n\t }\n\t }\n\t}\n\t\n\tmodule.exports = checkPropTypes;\n\t\n\t/* WEBPACK VAR INJECTION */}.call(exports, __webpack_require__(5)))\n\n/***/ }),\n/* 13 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\t/**\n\t * Copyright (c) 2013-present, Facebook, Inc.\n\t *\n\t * This source code is licensed under the MIT license found in the\n\t * LICENSE file in the root directory of this source tree.\n\t */\n\t\n\t'use strict';\n\t\n\tvar emptyFunction = __webpack_require__(7);\n\tvar invariant = __webpack_require__(8);\n\tvar ReactPropTypesSecret = __webpack_require__(11);\n\t\n\tmodule.exports = function() {\n\t function shim(props, propName, componentName, location, propFullName, secret) {\n\t if (secret === ReactPropTypesSecret) {\n\t // It is still safe when called from React.\n\t return;\n\t }\n\t invariant(\n\t false,\n\t 'Calling PropTypes validators directly is not supported by the `prop-types` package. ' +\n\t 'Use PropTypes.checkPropTypes() to call them. ' +\n\t 'Read more at http://fb.me/use-check-prop-types'\n\t );\n\t };\n\t shim.isRequired = shim;\n\t function getShim() {\n\t return shim;\n\t };\n\t // Important!\n\t // Keep this list in sync with production version in `./factoryWithTypeCheckers.js`.\n\t var ReactPropTypes = {\n\t array: shim,\n\t bool: shim,\n\t func: shim,\n\t number: shim,\n\t object: shim,\n\t string: shim,\n\t symbol: shim,\n\t\n\t any: shim,\n\t arrayOf: getShim,\n\t element: shim,\n\t instanceOf: getShim,\n\t node: shim,\n\t objectOf: getShim,\n\t oneOf: getShim,\n\t oneOfType: getShim,\n\t shape: getShim,\n\t exact: getShim\n\t };\n\t\n\t ReactPropTypes.checkPropTypes = emptyFunction;\n\t ReactPropTypes.PropTypes = ReactPropTypes;\n\t\n\t return ReactPropTypes;\n\t};\n\n\n/***/ }),\n/* 14 */\n/***/ (function(module, exports) {\n\n\tmodule.exports = require(\"react\");\n\n/***/ }),\n/* 15 */\n/***/ (function(module, exports) {\n\n\t'use strict';\n\t\n\tvar simpleIsEqual = function simpleIsEqual(a, b) {\n\t return a === b;\n\t};\n\t\n\tfunction index (resultFn) {\n\t var isEqual = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : simpleIsEqual;\n\t\n\t var lastThis = void 0;\n\t var lastArgs = [];\n\t var lastResult = void 0;\n\t var calledOnce = false;\n\t\n\t var isNewArgEqualToLast = function isNewArgEqualToLast(newArg, index) {\n\t return isEqual(newArg, lastArgs[index]);\n\t };\n\t\n\t var result = function result() {\n\t for (var _len = arguments.length, newArgs = Array(_len), _key = 0; _key < _len; _key++) {\n\t newArgs[_key] = arguments[_key];\n\t }\n\t\n\t if (calledOnce && lastThis === this && newArgs.length === lastArgs.length && newArgs.every(isNewArgEqualToLast)) {\n\t return lastResult;\n\t }\n\t\n\t calledOnce = true;\n\t lastThis = this;\n\t lastArgs = newArgs;\n\t lastResult = resultFn.apply(this, newArgs);\n\t return lastResult;\n\t };\n\t\n\t return result;\n\t}\n\t\n\tmodule.exports = index;\n\n\n/***/ })\n/******/ ]);\n//# sourceMappingURL=main.js.map","'use strict';\n\nvar isArrayish = require('is-arrayish');\n\nvar concat = Array.prototype.concat;\nvar slice = Array.prototype.slice;\n\nvar swizzle = module.exports = function swizzle(args) {\n\tvar results = [];\n\n\tfor (var i = 0, len = args.length; i < len; i++) {\n\t\tvar arg = args[i];\n\n\t\tif (isArrayish(arg)) {\n\t\t\t// http://jsperf.com/javascript-array-concat-vs-push/98\n\t\t\tresults = concat.call(results, slice.call(arg));\n\t\t} else {\n\t\t\tresults.push(arg);\n\t\t}\n\t}\n\n\treturn results;\n};\n\nswizzle.wrap = function (fn) {\n\treturn function () {\n\t\treturn fn(swizzle(arguments));\n\t};\n};\n","module.exports = function isArrayish(obj) {\n\tif (!obj || typeof obj === 'string') {\n\t\treturn false;\n\t}\n\n\treturn obj instanceof Array || Array.isArray(obj) ||\n\t\t(obj.length >= 0 && (obj.splice instanceof Function ||\n\t\t\t(Object.getOwnPropertyDescriptor(obj, (obj.length - 1)) && obj.constructor.name !== 'String')));\n};\n","\"use strict\";\nObject.defineProperty(exports, \"__esModule\", { value: true });\nvar typestyle_1 = require(\"./internal/typestyle\");\nexports.TypeStyle = typestyle_1.TypeStyle;\n/**\n * All the CSS types in the 'types' namespace\n */\nvar types = require(\"./types\");\nexports.types = types;\n/**\n * Export certain utilities\n */\nvar utilities_1 = require(\"./internal/utilities\");\nexports.extend = utilities_1.extend;\nexports.classes = utilities_1.classes;\nexports.media = utilities_1.media;\n/** Zero configuration, default instance of TypeStyle */\nvar ts = new typestyle_1.TypeStyle({ autoGenerateTag: true });\n/** Sets the target tag where we write the css on style updates */\nexports.setStylesTarget = ts.setStylesTarget;\n/**\n * Insert `raw` CSS as a string. This is useful for e.g.\n * - third party CSS that you are customizing with template strings\n * - generating raw CSS in JavaScript\n * - reset libraries like normalize.css that you can use without loaders\n */\nexports.cssRaw = ts.cssRaw;\n/**\n * Takes CSSProperties and registers it to a global selector (body, html, etc.)\n */\nexports.cssRule = ts.cssRule;\n/**\n * Renders styles to the singleton tag imediately\n * NOTE: You should only call it on initial render to prevent any non CSS flash.\n * After that it is kept sync using `requestAnimationFrame` and we haven't noticed any bad flashes.\n **/\nexports.forceRenderStyles = ts.forceRenderStyles;\n/**\n * Utility function to register an @font-face\n */\nexports.fontFace = ts.fontFace;\n/**\n * Allows use to use the stylesheet in a node.js environment\n */\nexports.getStyles = ts.getStyles;\n/**\n * Takes keyframes and returns a generated animationName\n */\nexports.keyframes = ts.keyframes;\n/**\n * Helps with testing. Reinitializes FreeStyle + raw\n */\nexports.reinit = ts.reinit;\n/**\n * Takes CSSProperties and return a generated className you can use on your component\n */\nexports.style = ts.style;\n/**\n * Takes an object where property names are ideal class names and property values are CSSProperties, and\n * returns an object where property names are the same ideal class names and the property values are\n * the actual generated class names using the ideal class name as the $debugName\n */\nexports.stylesheet = ts.stylesheet;\n/**\n * Creates a new instance of TypeStyle separate from the default instance.\n *\n * - Use this for creating a different typestyle instance for a shadow dom component.\n * - Use this if you don't want an auto tag generated and you just want to collect the CSS.\n *\n * NOTE: styles aren't shared between different instances.\n */\nfunction createTypeStyle(target) {\n var instance = new typestyle_1.TypeStyle({ autoGenerateTag: false });\n if (target) {\n instance.setStylesTarget(target);\n }\n return instance;\n}\nexports.createTypeStyle = createTypeStyle;\n","\"use strict\";\nObject.defineProperty(exports, \"__esModule\", { value: true });\n/**\n * We need to do the following to *our* objects before passing to freestyle:\n * - For any `$nest` directive move up to FreeStyle style nesting\n * - For any `$unique` directive map to FreeStyle Unique\n * - For any `$debugName` directive return the debug name\n */\nfunction convertToStyles(object) {\n /** The final result we will return */\n var styles = {};\n for (var key in object) {\n /** Grab the value upfront */\n var val = object[key];\n /** TypeStyle configuration options */\n if (key === '$nest') {\n var nested = val;\n for (var selector in nested) {\n var subproperties = nested[selector];\n styles[selector] = convertToStyles(subproperties);\n }\n }\n else if (key === '$debugName') {\n styles.$displayName = val;\n }\n else {\n styles[key] = val;\n }\n }\n return styles;\n}\nexports.convertToStyles = convertToStyles;\n// todo: better name here\nfunction convertToKeyframes(frames) {\n var result = {};\n for (var offset in frames) {\n if (offset !== '$debugName') {\n result[offset] = frames[offset];\n }\n }\n if (frames.$debugName) {\n result.$displayName = frames.$debugName;\n }\n return result;\n}\nexports.convertToKeyframes = convertToKeyframes;\n","\"use strict\";\nObject.defineProperty(exports, \"__esModule\", { value: true });\nvar FreeStyle = require(\"free-style\");\nvar formatting_1 = require(\"./formatting\");\nvar utilities_1 = require(\"./utilities\");\n/**\n * Creates an instance of free style with our options\n */\nvar createFreeStyle = function () { return FreeStyle.create(); };\n/**\n * Maintains a single stylesheet and keeps it in sync with requested styles\n */\nvar TypeStyle = /** @class */ (function () {\n function TypeStyle(_a) {\n var _this = this;\n var autoGenerateTag = _a.autoGenerateTag;\n /**\n * Insert `raw` CSS as a string. This is useful for e.g.\n * - third party CSS that you are customizing with template strings\n * - generating raw CSS in JavaScript\n * - reset libraries like normalize.css that you can use without loaders\n */\n this.cssRaw = function (mustBeValidCSS) {\n if (!mustBeValidCSS) {\n return;\n }\n _this._raw += mustBeValidCSS || '';\n _this._pendingRawChange = true;\n _this._styleUpdated();\n };\n /**\n * Takes CSSProperties and registers it to a global selector (body, html, etc.)\n */\n this.cssRule = function (selector) {\n var objects = [];\n for (var _i = 1; _i < arguments.length; _i++) {\n objects[_i - 1] = arguments[_i];\n }\n var styles = formatting_1.convertToStyles(utilities_1.extend.apply(void 0, objects));\n _this._freeStyle.registerRule(selector, styles);\n _this._styleUpdated();\n return;\n };\n /**\n * Renders styles to the singleton tag imediately\n * NOTE: You should only call it on initial render to prevent any non CSS flash.\n * After that it is kept sync using `requestAnimationFrame` and we haven't noticed any bad flashes.\n **/\n this.forceRenderStyles = function () {\n var target = _this._getTag();\n if (!target) {\n return;\n }\n target.textContent = _this.getStyles();\n };\n /**\n * Utility function to register an @font-face\n */\n this.fontFace = function () {\n var fontFace = [];\n for (var _i = 0; _i < arguments.length; _i++) {\n fontFace[_i] = arguments[_i];\n }\n var freeStyle = _this._freeStyle;\n for (var _a = 0, _b = fontFace; _a < _b.length; _a++) {\n var face = _b[_a];\n freeStyle.registerRule('@font-face', face);\n }\n _this._styleUpdated();\n return;\n };\n /**\n * Allows use to use the stylesheet in a node.js environment\n */\n this.getStyles = function () {\n return (_this._raw || '') + _this._freeStyle.getStyles();\n };\n /**\n * Takes keyframes and returns a generated animationName\n */\n this.keyframes = function (frames) {\n var keyframes = formatting_1.convertToKeyframes(frames);\n // TODO: replace $debugName with display name\n var animationName = _this._freeStyle.registerKeyframes(keyframes);\n _this._styleUpdated();\n return animationName;\n };\n /**\n * Helps with testing. Reinitializes FreeStyle + raw\n */\n this.reinit = function () {\n /** reinit freestyle */\n var freeStyle = createFreeStyle();\n _this._freeStyle = freeStyle;\n _this._lastFreeStyleChangeId = freeStyle.changeId;\n /** reinit raw */\n _this._raw = '';\n _this._pendingRawChange = false;\n /** Clear any styles that were flushed */\n var target = _this._getTag();\n if (target) {\n target.textContent = '';\n }\n };\n /** Sets the target tag where we write the css on style updates */\n this.setStylesTarget = function (tag) {\n /** Clear any data in any previous tag */\n if (_this._tag) {\n _this._tag.textContent = '';\n }\n _this._tag = tag;\n /** This special time buffer immediately */\n _this.forceRenderStyles();\n };\n /**\n * Takes an object where property names are ideal class names and property values are CSSProperties, and\n * returns an object where property names are the same ideal class names and the property values are\n * the actual generated class names using the ideal class name as the $debugName\n */\n this.stylesheet = function (classes) {\n var classNames = Object.getOwnPropertyNames(classes);\n var result = {};\n for (var _i = 0, classNames_1 = classNames; _i < classNames_1.length; _i++) {\n var className = classNames_1[_i];\n var classDef = classes[className];\n if (classDef) {\n classDef.$debugName = className;\n result[className] = _this.style(classDef);\n }\n }\n return result;\n };\n var freeStyle = createFreeStyle();\n this._autoGenerateTag = autoGenerateTag;\n this._freeStyle = freeStyle;\n this._lastFreeStyleChangeId = freeStyle.changeId;\n this._pending = 0;\n this._pendingRawChange = false;\n this._raw = '';\n this._tag = undefined;\n // rebind prototype to TypeStyle. It might be better to do a function() { return this.style.apply(this, arguments)}\n this.style = this.style.bind(this);\n }\n /**\n * Only calls cb all sync operations settle\n */\n TypeStyle.prototype._afterAllSync = function (cb) {\n var _this = this;\n this._pending++;\n var pending = this._pending;\n utilities_1.raf(function () {\n if (pending !== _this._pending) {\n return;\n }\n cb();\n });\n };\n TypeStyle.prototype._getTag = function () {\n if (this._tag) {\n return this._tag;\n }\n if (this._autoGenerateTag) {\n var tag = typeof window === 'undefined'\n ? { textContent: '' }\n : document.createElement('style');\n if (typeof document !== 'undefined') {\n document.head.appendChild(tag);\n }\n this._tag = tag;\n return tag;\n }\n return undefined;\n };\n /** Checks if the style tag needs updating and if so queues up the change */\n TypeStyle.prototype._styleUpdated = function () {\n var _this = this;\n var changeId = this._freeStyle.changeId;\n var lastChangeId = this._lastFreeStyleChangeId;\n if (!this._pendingRawChange && changeId === lastChangeId) {\n return;\n }\n this._lastFreeStyleChangeId = changeId;\n this._pendingRawChange = false;\n this._afterAllSync(function () { return _this.forceRenderStyles(); });\n };\n TypeStyle.prototype.style = function () {\n var className = this._freeStyle.registerStyle(formatting_1.convertToStyles(utilities_1.extend.apply(undefined, arguments)));\n this._styleUpdated();\n return className;\n };\n return TypeStyle;\n}());\nexports.TypeStyle = TypeStyle;\n","\"use strict\";\nObject.defineProperty(exports, \"__esModule\", { value: true });\n/** Raf for node + browser */\nexports.raf = typeof requestAnimationFrame === 'undefined'\n /**\n * Make sure setTimeout is always invoked with\n * `this` set to `window` or `global` automatically\n **/\n ? function (cb) { return setTimeout(cb); }\n /**\n * Make sure window.requestAnimationFrame is always invoked with `this` window\n * We might have raf without window in case of `raf/polyfill` (recommended by React)\n **/\n : typeof window === 'undefined'\n ? requestAnimationFrame\n : requestAnimationFrame.bind(window);\n/**\n * Utility to join classes conditionally\n */\nfunction classes() {\n var classes = [];\n for (var _i = 0; _i < arguments.length; _i++) {\n classes[_i] = arguments[_i];\n }\n return classes\n .map(function (c) { return c && typeof c === 'object' ? Object.keys(c).map(function (key) { return !!c[key] && key; }) : [c]; })\n .reduce(function (flattened, c) { return flattened.concat(c); }, [])\n .filter(function (c) { return !!c; })\n .join(' ');\n}\nexports.classes = classes;\n/**\n * Merges various styles into a single style object.\n * Note: if two objects have the same property the last one wins\n */\nfunction extend() {\n var objects = [];\n for (var _i = 0; _i < arguments.length; _i++) {\n objects[_i] = arguments[_i];\n }\n /** The final result we will return */\n var result = {};\n for (var _a = 0, objects_1 = objects; _a < objects_1.length; _a++) {\n var object = objects_1[_a];\n if (object == null || object === false) {\n continue;\n }\n for (var key in object) {\n /** Falsy values except a explicit 0 is ignored */\n var val = object[key];\n if (!val && val !== 0) {\n continue;\n }\n /** if nested media or pseudo selector */\n if (key === '$nest' && val) {\n result[key] = result['$nest'] ? extend(result['$nest'], val) : val;\n }\n /** if freestyle sub key that needs merging. We come here due to our recursive calls */\n else if ((key.indexOf('&') !== -1 || key.indexOf('@media') === 0)) {\n result[key] = result[key] ? extend(result[key], val) : val;\n }\n else {\n result[key] = val;\n }\n }\n }\n return result;\n}\nexports.extend = extend;\n/**\n * Utility to help customize styles with media queries. e.g.\n * ```\n * style(\n * media({maxWidth:500}, {color:'red'})\n * )\n * ```\n */\nexports.media = function (mediaQuery) {\n var _a;\n var objects = [];\n for (var _i = 1; _i < arguments.length; _i++) {\n objects[_i - 1] = arguments[_i];\n }\n var mediaQuerySections = [];\n if (mediaQuery.type)\n mediaQuerySections.push(mediaQuery.type);\n if (mediaQuery.orientation)\n mediaQuerySections.push(\"(orientation: \" + mediaQuery.orientation + \")\");\n if (mediaQuery.minWidth)\n mediaQuerySections.push(\"(min-width: \" + mediaLength(mediaQuery.minWidth) + \")\");\n if (mediaQuery.maxWidth)\n mediaQuerySections.push(\"(max-width: \" + mediaLength(mediaQuery.maxWidth) + \")\");\n if (mediaQuery.minHeight)\n mediaQuerySections.push(\"(min-height: \" + mediaLength(mediaQuery.minHeight) + \")\");\n if (mediaQuery.maxHeight)\n mediaQuerySections.push(\"(max-height: \" + mediaLength(mediaQuery.maxHeight) + \")\");\n if (mediaQuery.prefersColorScheme)\n mediaQuerySections.push(\"(prefers-color-scheme: \" + mediaQuery.prefersColorScheme + \")\");\n var stringMediaQuery = \"@media \" + mediaQuerySections.join(' and ');\n var object = {\n $nest: (_a = {},\n _a[stringMediaQuery] = extend.apply(void 0, objects),\n _a)\n };\n return object;\n};\nvar mediaLength = function (value) {\n return typeof value === 'string' ? value : value + \"px\";\n};\n","\"use strict\";\nObject.defineProperty(exports, \"__esModule\", { value: true });\n","(function (global, factory) {\n typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :\n typeof define === 'function' && define.amd ? define(['exports'], factory) :\n (global = typeof globalThis !== 'undefined' ? globalThis : global || self, factory(global.lumino_coreutils = {}));\n})(this, (function (exports) { 'use strict';\n\n // Copyright (c) Jupyter Development Team.\n // Distributed under the terms of the Modified BSD License.\n /*-----------------------------------------------------------------------------\n | Copyright (c) 2014-2017, PhosphorJS Contributors\n |\n | Distributed under the terms of the BSD 3-Clause License.\n |\n | The full license is in the file LICENSE, distributed with this software.\n |----------------------------------------------------------------------------*/\n /**\n * The namespace for JSON-specific functions.\n */\n exports.JSONExt = void 0;\n (function (JSONExt) {\n /**\n * A shared frozen empty JSONObject\n */\n JSONExt.emptyObject = Object.freeze({});\n /**\n * A shared frozen empty JSONArray\n */\n JSONExt.emptyArray = Object.freeze([]);\n /**\n * Test whether a JSON value is a primitive.\n *\n * @param value - The JSON value of interest.\n *\n * @returns `true` if the value is a primitive,`false` otherwise.\n */\n function isPrimitive(value) {\n return (value === null ||\n typeof value === 'boolean' ||\n typeof value === 'number' ||\n typeof value === 'string');\n }\n JSONExt.isPrimitive = isPrimitive;\n function isArray(value) {\n return Array.isArray(value);\n }\n JSONExt.isArray = isArray;\n function isObject(value) {\n return !isPrimitive(value) && !isArray(value);\n }\n JSONExt.isObject = isObject;\n /**\n * Compare two JSON values for deep equality.\n *\n * @param first - The first JSON value of interest.\n *\n * @param second - The second JSON value of interest.\n *\n * @returns `true` if the values are equivalent, `false` otherwise.\n */\n function deepEqual(first, second) {\n // Check referential and primitive equality first.\n if (first === second) {\n return true;\n }\n // If one is a primitive, the `===` check ruled out the other.\n if (isPrimitive(first) || isPrimitive(second)) {\n return false;\n }\n // Test whether they are arrays.\n let a1 = isArray(first);\n let a2 = isArray(second);\n // Bail if the types are different.\n if (a1 !== a2) {\n return false;\n }\n // If they are both arrays, compare them.\n if (a1 && a2) {\n return deepArrayEqual(first, second);\n }\n // At this point, they must both be objects.\n return deepObjectEqual(first, second);\n }\n JSONExt.deepEqual = deepEqual;\n /**\n * Create a deep copy of a JSON value.\n *\n * @param value - The JSON value to copy.\n *\n * @returns A deep copy of the given JSON value.\n */\n function deepCopy(value) {\n // Do nothing for primitive values.\n if (isPrimitive(value)) {\n return value;\n }\n // Deep copy an array.\n if (isArray(value)) {\n return deepArrayCopy(value);\n }\n // Deep copy an object.\n return deepObjectCopy(value);\n }\n JSONExt.deepCopy = deepCopy;\n /**\n * Compare two JSON arrays for deep equality.\n */\n function deepArrayEqual(first, second) {\n // Check referential equality first.\n if (first === second) {\n return true;\n }\n // Test the arrays for equal length.\n if (first.length !== second.length) {\n return false;\n }\n // Compare the values for equality.\n for (let i = 0, n = first.length; i < n; ++i) {\n if (!deepEqual(first[i], second[i])) {\n return false;\n }\n }\n // At this point, the arrays are equal.\n return true;\n }\n /**\n * Compare two JSON objects for deep equality.\n */\n function deepObjectEqual(first, second) {\n // Check referential equality first.\n if (first === second) {\n return true;\n }\n // Check for the first object's keys in the second object.\n for (let key in first) {\n if (first[key] !== undefined && !(key in second)) {\n return false;\n }\n }\n // Check for the second object's keys in the first object.\n for (let key in second) {\n if (second[key] !== undefined && !(key in first)) {\n return false;\n }\n }\n // Compare the values for equality.\n for (let key in first) {\n // Get the values.\n let firstValue = first[key];\n let secondValue = second[key];\n // If both are undefined, ignore the key.\n if (firstValue === undefined && secondValue === undefined) {\n continue;\n }\n // If only one value is undefined, the objects are not equal.\n if (firstValue === undefined || secondValue === undefined) {\n return false;\n }\n // Compare the values.\n if (!deepEqual(firstValue, secondValue)) {\n return false;\n }\n }\n // At this point, the objects are equal.\n return true;\n }\n /**\n * Create a deep copy of a JSON array.\n */\n function deepArrayCopy(value) {\n let result = new Array(value.length);\n for (let i = 0, n = value.length; i < n; ++i) {\n result[i] = deepCopy(value[i]);\n }\n return result;\n }\n /**\n * Create a deep copy of a JSON object.\n */\n function deepObjectCopy(value) {\n let result = {};\n for (let key in value) {\n // Ignore undefined values.\n let subvalue = value[key];\n if (subvalue === undefined) {\n continue;\n }\n result[key] = deepCopy(subvalue);\n }\n return result;\n }\n })(exports.JSONExt || (exports.JSONExt = {}));\n\n // Copyright (c) Jupyter Development Team.\n // Distributed under the terms of the Modified BSD License.\n /*-----------------------------------------------------------------------------\n | Copyright (c) 2014-2017, PhosphorJS Contributors\n |\n | Distributed under the terms of the BSD 3-Clause License.\n |\n | The full license is in the file LICENSE, distributed with this software.\n |----------------------------------------------------------------------------*/\n /**\n * An object which stores MIME data for general application use.\n *\n * #### Notes\n * This class does not attempt to enforce \"correctness\" of MIME types\n * and their associated data. Since this class is designed to transfer\n * arbitrary data and objects within the same application, it assumes\n * that the user provides correct and accurate data.\n */\n class MimeData {\n constructor() {\n this._types = [];\n this._values = [];\n }\n /**\n * Get an array of the MIME types contained within the dataset.\n *\n * @returns A new array of the MIME types, in order of insertion.\n */\n types() {\n return this._types.slice();\n }\n /**\n * Test whether the dataset has an entry for the given type.\n *\n * @param mime - The MIME type of interest.\n *\n * @returns `true` if the dataset contains a value for the given\n * MIME type, `false` otherwise.\n */\n hasData(mime) {\n return this._types.indexOf(mime) !== -1;\n }\n /**\n * Get the data value for the given MIME type.\n *\n * @param mime - The MIME type of interest.\n *\n * @returns The value for the given MIME type, or `undefined` if\n * the dataset does not contain a value for the type.\n */\n getData(mime) {\n let i = this._types.indexOf(mime);\n return i !== -1 ? this._values[i] : undefined;\n }\n /**\n * Set the data value for the given MIME type.\n *\n * @param mime - The MIME type of interest.\n *\n * @param data - The data value for the given MIME type.\n *\n * #### Notes\n * This will overwrite any previous entry for the MIME type.\n */\n setData(mime, data) {\n this.clearData(mime);\n this._types.push(mime);\n this._values.push(data);\n }\n /**\n * Remove the data entry for the given MIME type.\n *\n * @param mime - The MIME type of interest.\n *\n * #### Notes\n * This is a no-op if there is no entry for the given MIME type.\n */\n clearData(mime) {\n let i = this._types.indexOf(mime);\n if (i !== -1) {\n this._types.splice(i, 1);\n this._values.splice(i, 1);\n }\n }\n /**\n * Remove all data entries from the dataset.\n */\n clear() {\n this._types.length = 0;\n this._values.length = 0;\n }\n }\n\n // Copyright (c) Jupyter Development Team.\n // Distributed under the terms of the Modified BSD License.\n /*-----------------------------------------------------------------------------\n | Copyright (c) 2014-2017, PhosphorJS Contributors\n |\n | Distributed under the terms of the BSD 3-Clause License.\n |\n | The full license is in the file LICENSE, distributed with this software.\n |----------------------------------------------------------------------------*/\n /**\n * A class which wraps a promise into a delegate object.\n *\n * #### Notes\n * This class is useful when the logic to resolve or reject a promise\n * cannot be defined at the point where the promise is created.\n */\n class PromiseDelegate {\n /**\n * Construct a new promise delegate.\n */\n constructor() {\n this.promise = new Promise((resolve, reject) => {\n this._resolve = resolve;\n this._reject = reject;\n });\n }\n /**\n * Resolve the wrapped promise with the given value.\n *\n * @param value - The value to use for resolving the promise.\n */\n resolve(value) {\n let resolve = this._resolve;\n resolve(value);\n }\n /**\n * Reject the wrapped promise with the given value.\n *\n * @reason - The reason for rejecting the promise.\n */\n reject(reason) {\n let reject = this._reject;\n reject(reason);\n }\n }\n\n // Copyright (c) Jupyter Development Team.\n // Distributed under the terms of the Modified BSD License.\n /*-----------------------------------------------------------------------------\n | Copyright (c) 2014-2017, PhosphorJS Contributors\n |\n | Distributed under the terms of the BSD 3-Clause License.\n |\n | The full license is in the file LICENSE, distributed with this software.\n |----------------------------------------------------------------------------*/\n /**\n * A runtime object which captures compile-time type information.\n *\n * #### Notes\n * A token captures the compile-time type of an interface or class in\n * an object which can be used at runtime in a type-safe fashion.\n */\n class Token {\n /**\n * Construct a new token.\n *\n * @param name - A human readable name for the token.\n * @param description - Token purpose description for documentation.\n */\n constructor(name, description) {\n this.name = name;\n this.description = description !== null && description !== void 0 ? description : '';\n this._tokenStructuralPropertyT = null;\n }\n }\n\n // Copyright (c) Jupyter Development Team.\n // Distributed under the terms of the Modified BSD License.\n /*-----------------------------------------------------------------------------\n | Copyright (c) 2014-2017, PhosphorJS Contributors\n |\n | Distributed under the terms of the BSD 3-Clause License.\n |\n | The full license is in the file LICENSE, distributed with this software.\n |----------------------------------------------------------------------------*/\n // Fallback\n function fallbackRandomValues(buffer) {\n let value = 0;\n for (let i = 0, n = buffer.length; i < n; ++i) {\n if (i % 4 === 0) {\n value = (Math.random() * 0xffffffff) >>> 0;\n }\n buffer[i] = value & 0xff;\n value >>>= 8;\n }\n }\n\n // Copyright (c) Jupyter Development Team.\n // Distributed under the terms of the Modified BSD License.\n /*-----------------------------------------------------------------------------\n | Copyright (c) 2014-2017, PhosphorJS Contributors\n |\n | Distributed under the terms of the BSD 3-Clause License.\n |\n | The full license is in the file LICENSE, distributed with this software.\n |----------------------------------------------------------------------------*/\n /**\n * The namespace for random number related functionality.\n */\n exports.Random = void 0;\n (function (Random) {\n /**\n * A function which generates random bytes.\n *\n * @param buffer - The `Uint8Array` to fill with random bytes.\n *\n * #### Notes\n * A cryptographically strong random number generator will be used if\n * available. Otherwise, `Math.random` will be used as a fallback for\n * randomness.\n *\n * The following RNGs are supported, listed in order of precedence:\n * - `window.crypto.getRandomValues`\n * - `window.msCrypto.getRandomValues`\n * - `require('crypto').randomFillSync\n * - `require('crypto').randomBytes\n * - `Math.random`\n */\n Random.getRandomValues = (() => {\n // Look up the crypto module if available.\n const crypto = (typeof window !== 'undefined' && (window.crypto || window.msCrypto)) ||\n null;\n // Modern browsers and IE 11\n if (crypto && typeof crypto.getRandomValues === 'function') {\n return function getRandomValues(buffer) {\n return crypto.getRandomValues(buffer);\n };\n }\n // Fallback\n return fallbackRandomValues;\n })();\n })(exports.Random || (exports.Random = {}));\n\n // Copyright (c) Jupyter Development Team.\n // Distributed under the terms of the Modified BSD License.\n /*-----------------------------------------------------------------------------\n | Copyright (c) 2014-2017, PhosphorJS Contributors\n |\n | Distributed under the terms of the BSD 3-Clause License.\n |\n | The full license is in the file LICENSE, distributed with this software.\n |----------------------------------------------------------------------------*/\n /**\n * A function which creates a function that generates UUID v4 identifiers.\n *\n * @returns A new function that creates a UUID v4 string.\n *\n * #### Notes\n * This implementation complies with RFC 4122.\n *\n * This uses `Random.getRandomValues()` for random bytes, which in\n * turn will use the underlying `crypto` module of the platform if\n * it is available. The fallback for randomness is `Math.random`.\n */\n function uuid4Factory(getRandomValues) {\n // Create a 16 byte array to hold the random values.\n const bytes = new Uint8Array(16);\n // Create a look up table from bytes to hex strings.\n const lut = new Array(256);\n // Pad the single character hex digits with a leading zero.\n for (let i = 0; i < 16; ++i) {\n lut[i] = '0' + i.toString(16);\n }\n // Populate the rest of the hex digits.\n for (let i = 16; i < 256; ++i) {\n lut[i] = i.toString(16);\n }\n // Return a function which generates the UUID.\n return function uuid4() {\n // Get a new batch of random values.\n getRandomValues(bytes);\n // Set the UUID version number to 4.\n bytes[6] = 0x40 | (bytes[6] & 0x0f);\n // Set the clock sequence bit to the RFC spec.\n bytes[8] = 0x80 | (bytes[8] & 0x3f);\n // Assemble the UUID string.\n return (lut[bytes[0]] +\n lut[bytes[1]] +\n lut[bytes[2]] +\n lut[bytes[3]] +\n '-' +\n lut[bytes[4]] +\n lut[bytes[5]] +\n '-' +\n lut[bytes[6]] +\n lut[bytes[7]] +\n '-' +\n lut[bytes[8]] +\n lut[bytes[9]] +\n '-' +\n lut[bytes[10]] +\n lut[bytes[11]] +\n lut[bytes[12]] +\n lut[bytes[13]] +\n lut[bytes[14]] +\n lut[bytes[15]]);\n };\n }\n\n // Copyright (c) Jupyter Development Team.\n // Distributed under the terms of the Modified BSD License.\n /*-----------------------------------------------------------------------------\n | Copyright (c) 2014-2017, PhosphorJS Contributors\n |\n | Distributed under the terms of the BSD 3-Clause License.\n |\n | The full license is in the file LICENSE, distributed with this software.\n |----------------------------------------------------------------------------*/\n /**\n * The namespace for UUID related functionality.\n */\n exports.UUID = void 0;\n (function (UUID) {\n /**\n * A function which generates UUID v4 identifiers.\n *\n * @returns A new UUID v4 string.\n *\n * #### Notes\n * This implementation complies with RFC 4122.\n *\n * This uses `Random.getRandomValues()` for random bytes, which in\n * turn will use the underlying `crypto` module of the platform if\n * it is available. The fallback for randomness is `Math.random`.\n */\n UUID.uuid4 = uuid4Factory(exports.Random.getRandomValues);\n })(exports.UUID || (exports.UUID = {}));\n\n exports.MimeData = MimeData;\n exports.PromiseDelegate = PromiseDelegate;\n exports.Token = Token;\n\n}));\n//# sourceMappingURL=index.js.map\n","import { Annotation, Facet, combineConfig, StateField, EditorSelection, Transaction, ChangeSet, ChangeDesc, StateEffect, Text, findClusterBreak, countColumn, CharCategory } from '@codemirror/state';\nimport { EditorView, Direction } from '@codemirror/view';\nimport { IndentContext, getIndentation, indentString, matchBrackets, syntaxTree, getIndentUnit, indentUnit } from '@codemirror/language';\nimport { NodeProp } from '@lezer/common';\n\n/**\nComment or uncomment the current selection. Will use line comments\nif available, otherwise falling back to block comments.\n*/\nconst toggleComment = target => {\n let { state } = target, line = state.doc.lineAt(state.selection.main.from), config = getConfig(target.state, line.from);\n return config.line ? toggleLineComment(target) : config.block ? toggleBlockCommentByLine(target) : false;\n};\nfunction command(f, option) {\n return ({ state, dispatch }) => {\n if (state.readOnly)\n return false;\n let tr = f(option, state);\n if (!tr)\n return false;\n dispatch(state.update(tr));\n return true;\n };\n}\n/**\nComment or uncomment the current selection using line comments.\nThe line comment syntax is taken from the\n[`commentTokens`](https://codemirror.net/6/docs/ref/#commands.CommentTokens) [language\ndata](https://codemirror.net/6/docs/ref/#state.EditorState.languageDataAt).\n*/\nconst toggleLineComment = /*@__PURE__*/command(changeLineComment, 0 /* CommentOption.Toggle */);\n/**\nComment the current selection using line comments.\n*/\nconst lineComment = /*@__PURE__*/command(changeLineComment, 1 /* CommentOption.Comment */);\n/**\nUncomment the current selection using line comments.\n*/\nconst lineUncomment = /*@__PURE__*/command(changeLineComment, 2 /* CommentOption.Uncomment */);\n/**\nComment or uncomment the current selection using block comments.\nThe block comment syntax is taken from the\n[`commentTokens`](https://codemirror.net/6/docs/ref/#commands.CommentTokens) [language\ndata](https://codemirror.net/6/docs/ref/#state.EditorState.languageDataAt).\n*/\nconst toggleBlockComment = /*@__PURE__*/command(changeBlockComment, 0 /* CommentOption.Toggle */);\n/**\nComment the current selection using block comments.\n*/\nconst blockComment = /*@__PURE__*/command(changeBlockComment, 1 /* CommentOption.Comment */);\n/**\nUncomment the current selection using block comments.\n*/\nconst blockUncomment = /*@__PURE__*/command(changeBlockComment, 2 /* CommentOption.Uncomment */);\n/**\nComment or uncomment the lines around the current selection using\nblock comments.\n*/\nconst toggleBlockCommentByLine = /*@__PURE__*/command((o, s) => changeBlockComment(o, s, selectedLineRanges(s)), 0 /* CommentOption.Toggle */);\nfunction getConfig(state, pos) {\n let data = state.languageDataAt(\"commentTokens\", pos);\n return data.length ? data[0] : {};\n}\nconst SearchMargin = 50;\n/**\nDetermines if the given range is block-commented in the given\nstate.\n*/\nfunction findBlockComment(state, { open, close }, from, to) {\n let textBefore = state.sliceDoc(from - SearchMargin, from);\n let textAfter = state.sliceDoc(to, to + SearchMargin);\n let spaceBefore = /\\s*$/.exec(textBefore)[0].length, spaceAfter = /^\\s*/.exec(textAfter)[0].length;\n let beforeOff = textBefore.length - spaceBefore;\n if (textBefore.slice(beforeOff - open.length, beforeOff) == open &&\n textAfter.slice(spaceAfter, spaceAfter + close.length) == close) {\n return { open: { pos: from - spaceBefore, margin: spaceBefore && 1 },\n close: { pos: to + spaceAfter, margin: spaceAfter && 1 } };\n }\n let startText, endText;\n if (to - from <= 2 * SearchMargin) {\n startText = endText = state.sliceDoc(from, to);\n }\n else {\n startText = state.sliceDoc(from, from + SearchMargin);\n endText = state.sliceDoc(to - SearchMargin, to);\n }\n let startSpace = /^\\s*/.exec(startText)[0].length, endSpace = /\\s*$/.exec(endText)[0].length;\n let endOff = endText.length - endSpace - close.length;\n if (startText.slice(startSpace, startSpace + open.length) == open &&\n endText.slice(endOff, endOff + close.length) == close) {\n return { open: { pos: from + startSpace + open.length,\n margin: /\\s/.test(startText.charAt(startSpace + open.length)) ? 1 : 0 },\n close: { pos: to - endSpace - close.length,\n margin: /\\s/.test(endText.charAt(endOff - 1)) ? 1 : 0 } };\n }\n return null;\n}\nfunction selectedLineRanges(state) {\n let ranges = [];\n for (let r of state.selection.ranges) {\n let fromLine = state.doc.lineAt(r.from);\n let toLine = r.to <= fromLine.to ? fromLine : state.doc.lineAt(r.to);\n let last = ranges.length - 1;\n if (last >= 0 && ranges[last].to > fromLine.from)\n ranges[last].to = toLine.to;\n else\n ranges.push({ from: fromLine.from + /^\\s*/.exec(fromLine.text)[0].length, to: toLine.to });\n }\n return ranges;\n}\n// Performs toggle, comment and uncomment of block comments in\n// languages that support them.\nfunction changeBlockComment(option, state, ranges = state.selection.ranges) {\n let tokens = ranges.map(r => getConfig(state, r.from).block);\n if (!tokens.every(c => c))\n return null;\n let comments = ranges.map((r, i) => findBlockComment(state, tokens[i], r.from, r.to));\n if (option != 2 /* CommentOption.Uncomment */ && !comments.every(c => c)) {\n return { changes: state.changes(ranges.map((range, i) => {\n if (comments[i])\n return [];\n return [{ from: range.from, insert: tokens[i].open + \" \" }, { from: range.to, insert: \" \" + tokens[i].close }];\n })) };\n }\n else if (option != 1 /* CommentOption.Comment */ && comments.some(c => c)) {\n let changes = [];\n for (let i = 0, comment; i < comments.length; i++)\n if (comment = comments[i]) {\n let token = tokens[i], { open, close } = comment;\n changes.push({ from: open.pos - token.open.length, to: open.pos + open.margin }, { from: close.pos - close.margin, to: close.pos + token.close.length });\n }\n return { changes };\n }\n return null;\n}\n// Performs toggle, comment and uncomment of line comments.\nfunction changeLineComment(option, state, ranges = state.selection.ranges) {\n let lines = [];\n let prevLine = -1;\n for (let { from, to } of ranges) {\n let startI = lines.length, minIndent = 1e9;\n let token = getConfig(state, from).line;\n if (!token)\n continue;\n for (let pos = from; pos <= to;) {\n let line = state.doc.lineAt(pos);\n if (line.from > prevLine && (from == to || to > line.from)) {\n prevLine = line.from;\n let indent = /^\\s*/.exec(line.text)[0].length;\n let empty = indent == line.length;\n let comment = line.text.slice(indent, indent + token.length) == token ? indent : -1;\n if (indent < line.text.length && indent < minIndent)\n minIndent = indent;\n lines.push({ line, comment, token, indent, empty, single: false });\n }\n pos = line.to + 1;\n }\n if (minIndent < 1e9)\n for (let i = startI; i < lines.length; i++)\n if (lines[i].indent < lines[i].line.text.length)\n lines[i].indent = minIndent;\n if (lines.length == startI + 1)\n lines[startI].single = true;\n }\n if (option != 2 /* CommentOption.Uncomment */ && lines.some(l => l.comment < 0 && (!l.empty || l.single))) {\n let changes = [];\n for (let { line, token, indent, empty, single } of lines)\n if (single || !empty)\n changes.push({ from: line.from + indent, insert: token + \" \" });\n let changeSet = state.changes(changes);\n return { changes: changeSet, selection: state.selection.map(changeSet, 1) };\n }\n else if (option != 1 /* CommentOption.Comment */ && lines.some(l => l.comment >= 0)) {\n let changes = [];\n for (let { line, comment, token } of lines)\n if (comment >= 0) {\n let from = line.from + comment, to = from + token.length;\n if (line.text[to - line.from] == \" \")\n to++;\n changes.push({ from, to });\n }\n return { changes };\n }\n return null;\n}\n\nconst fromHistory = /*@__PURE__*/Annotation.define();\n/**\nTransaction annotation that will prevent that transaction from\nbeing combined with other transactions in the undo history. Given\n`\"before\"`, it'll prevent merging with previous transactions. With\n`\"after\"`, subsequent transactions won't be combined with this\none. With `\"full\"`, the transaction is isolated on both sides.\n*/\nconst isolateHistory = /*@__PURE__*/Annotation.define();\n/**\nThis facet provides a way to register functions that, given a\ntransaction, provide a set of effects that the history should\nstore when inverting the transaction. This can be used to\nintegrate some kinds of effects in the history, so that they can\nbe undone (and redone again).\n*/\nconst invertedEffects = /*@__PURE__*/Facet.define();\nconst historyConfig = /*@__PURE__*/Facet.define({\n combine(configs) {\n return combineConfig(configs, {\n minDepth: 100,\n newGroupDelay: 500,\n joinToEvent: (_t, isAdjacent) => isAdjacent,\n }, {\n minDepth: Math.max,\n newGroupDelay: Math.min,\n joinToEvent: (a, b) => (tr, adj) => a(tr, adj) || b(tr, adj)\n });\n }\n});\nfunction changeEnd(changes) {\n let end = 0;\n changes.iterChangedRanges((_, to) => end = to);\n return end;\n}\nconst historyField_ = /*@__PURE__*/StateField.define({\n create() {\n return HistoryState.empty;\n },\n update(state, tr) {\n let config = tr.state.facet(historyConfig);\n let fromHist = tr.annotation(fromHistory);\n if (fromHist) {\n let selection = tr.docChanged ? EditorSelection.single(changeEnd(tr.changes)) : undefined;\n let item = HistEvent.fromTransaction(tr, selection), from = fromHist.side;\n let other = from == 0 /* BranchName.Done */ ? state.undone : state.done;\n if (item)\n other = updateBranch(other, other.length, config.minDepth, item);\n else\n other = addSelection(other, tr.startState.selection);\n return new HistoryState(from == 0 /* BranchName.Done */ ? fromHist.rest : other, from == 0 /* BranchName.Done */ ? other : fromHist.rest);\n }\n let isolate = tr.annotation(isolateHistory);\n if (isolate == \"full\" || isolate == \"before\")\n state = state.isolate();\n if (tr.annotation(Transaction.addToHistory) === false)\n return !tr.changes.empty ? state.addMapping(tr.changes.desc) : state;\n let event = HistEvent.fromTransaction(tr);\n let time = tr.annotation(Transaction.time), userEvent = tr.annotation(Transaction.userEvent);\n if (event)\n state = state.addChanges(event, time, userEvent, config, tr);\n else if (tr.selection)\n state = state.addSelection(tr.startState.selection, time, userEvent, config.newGroupDelay);\n if (isolate == \"full\" || isolate == \"after\")\n state = state.isolate();\n return state;\n },\n toJSON(value) {\n return { done: value.done.map(e => e.toJSON()), undone: value.undone.map(e => e.toJSON()) };\n },\n fromJSON(json) {\n return new HistoryState(json.done.map(HistEvent.fromJSON), json.undone.map(HistEvent.fromJSON));\n }\n});\n/**\nCreate a history extension with the given configuration.\n*/\nfunction history(config = {}) {\n return [\n historyField_,\n historyConfig.of(config),\n EditorView.domEventHandlers({\n beforeinput(e, view) {\n let command = e.inputType == \"historyUndo\" ? undo : e.inputType == \"historyRedo\" ? redo : null;\n if (!command)\n return false;\n e.preventDefault();\n return command(view);\n }\n })\n ];\n}\n/**\nThe state field used to store the history data. Should probably\nonly be used when you want to\n[serialize](https://codemirror.net/6/docs/ref/#state.EditorState.toJSON) or\n[deserialize](https://codemirror.net/6/docs/ref/#state.EditorState^fromJSON) state objects in a way\nthat preserves history.\n*/\nconst historyField = historyField_;\nfunction cmd(side, selection) {\n return function ({ state, dispatch }) {\n if (!selection && state.readOnly)\n return false;\n let historyState = state.field(historyField_, false);\n if (!historyState)\n return false;\n let tr = historyState.pop(side, state, selection);\n if (!tr)\n return false;\n dispatch(tr);\n return true;\n };\n}\n/**\nUndo a single group of history events. Returns false if no group\nwas available.\n*/\nconst undo = /*@__PURE__*/cmd(0 /* BranchName.Done */, false);\n/**\nRedo a group of history events. Returns false if no group was\navailable.\n*/\nconst redo = /*@__PURE__*/cmd(1 /* BranchName.Undone */, false);\n/**\nUndo a change or selection change.\n*/\nconst undoSelection = /*@__PURE__*/cmd(0 /* BranchName.Done */, true);\n/**\nRedo a change or selection change.\n*/\nconst redoSelection = /*@__PURE__*/cmd(1 /* BranchName.Undone */, true);\nfunction depth(side) {\n return function (state) {\n let histState = state.field(historyField_, false);\n if (!histState)\n return 0;\n let branch = side == 0 /* BranchName.Done */ ? histState.done : histState.undone;\n return branch.length - (branch.length && !branch[0].changes ? 1 : 0);\n };\n}\n/**\nThe amount of undoable change events available in a given state.\n*/\nconst undoDepth = /*@__PURE__*/depth(0 /* BranchName.Done */);\n/**\nThe amount of redoable change events available in a given state.\n*/\nconst redoDepth = /*@__PURE__*/depth(1 /* BranchName.Undone */);\n// History events store groups of changes or effects that need to be\n// undone/redone together.\nclass HistEvent {\n constructor(\n // The changes in this event. Normal events hold at least one\n // change or effect. But it may be necessary to store selection\n // events before the first change, in which case a special type of\n // instance is created which doesn't hold any changes, with\n // changes == startSelection == undefined\n changes, \n // The effects associated with this event\n effects, \n // Accumulated mapping (from addToHistory==false) that should be\n // applied to events below this one.\n mapped, \n // The selection before this event\n startSelection, \n // Stores selection changes after this event, to be used for\n // selection undo/redo.\n selectionsAfter) {\n this.changes = changes;\n this.effects = effects;\n this.mapped = mapped;\n this.startSelection = startSelection;\n this.selectionsAfter = selectionsAfter;\n }\n setSelAfter(after) {\n return new HistEvent(this.changes, this.effects, this.mapped, this.startSelection, after);\n }\n toJSON() {\n var _a, _b, _c;\n return {\n changes: (_a = this.changes) === null || _a === void 0 ? void 0 : _a.toJSON(),\n mapped: (_b = this.mapped) === null || _b === void 0 ? void 0 : _b.toJSON(),\n startSelection: (_c = this.startSelection) === null || _c === void 0 ? void 0 : _c.toJSON(),\n selectionsAfter: this.selectionsAfter.map(s => s.toJSON())\n };\n }\n static fromJSON(json) {\n return new HistEvent(json.changes && ChangeSet.fromJSON(json.changes), [], json.mapped && ChangeDesc.fromJSON(json.mapped), json.startSelection && EditorSelection.fromJSON(json.startSelection), json.selectionsAfter.map(EditorSelection.fromJSON));\n }\n // This does not check `addToHistory` and such, it assumes the\n // transaction needs to be converted to an item. Returns null when\n // there are no changes or effects in the transaction.\n static fromTransaction(tr, selection) {\n let effects = none;\n for (let invert of tr.startState.facet(invertedEffects)) {\n let result = invert(tr);\n if (result.length)\n effects = effects.concat(result);\n }\n if (!effects.length && tr.changes.empty)\n return null;\n return new HistEvent(tr.changes.invert(tr.startState.doc), effects, undefined, selection || tr.startState.selection, none);\n }\n static selection(selections) {\n return new HistEvent(undefined, none, undefined, undefined, selections);\n }\n}\nfunction updateBranch(branch, to, maxLen, newEvent) {\n let start = to + 1 > maxLen + 20 ? to - maxLen - 1 : 0;\n let newBranch = branch.slice(start, to);\n newBranch.push(newEvent);\n return newBranch;\n}\nfunction isAdjacent(a, b) {\n let ranges = [], isAdjacent = false;\n a.iterChangedRanges((f, t) => ranges.push(f, t));\n b.iterChangedRanges((_f, _t, f, t) => {\n for (let i = 0; i < ranges.length;) {\n let from = ranges[i++], to = ranges[i++];\n if (t >= from && f <= to)\n isAdjacent = true;\n }\n });\n return isAdjacent;\n}\nfunction eqSelectionShape(a, b) {\n return a.ranges.length == b.ranges.length &&\n a.ranges.filter((r, i) => r.empty != b.ranges[i].empty).length === 0;\n}\nfunction conc(a, b) {\n return !a.length ? b : !b.length ? a : a.concat(b);\n}\nconst none = [];\nconst MaxSelectionsPerEvent = 200;\nfunction addSelection(branch, selection) {\n if (!branch.length) {\n return [HistEvent.selection([selection])];\n }\n else {\n let lastEvent = branch[branch.length - 1];\n let sels = lastEvent.selectionsAfter.slice(Math.max(0, lastEvent.selectionsAfter.length - MaxSelectionsPerEvent));\n if (sels.length && sels[sels.length - 1].eq(selection))\n return branch;\n sels.push(selection);\n return updateBranch(branch, branch.length - 1, 1e9, lastEvent.setSelAfter(sels));\n }\n}\n// Assumes the top item has one or more selectionAfter values\nfunction popSelection(branch) {\n let last = branch[branch.length - 1];\n let newBranch = branch.slice();\n newBranch[branch.length - 1] = last.setSelAfter(last.selectionsAfter.slice(0, last.selectionsAfter.length - 1));\n return newBranch;\n}\n// Add a mapping to the top event in the given branch. If this maps\n// away all the changes and effects in that item, drop it and\n// propagate the mapping to the next item.\nfunction addMappingToBranch(branch, mapping) {\n if (!branch.length)\n return branch;\n let length = branch.length, selections = none;\n while (length) {\n let event = mapEvent(branch[length - 1], mapping, selections);\n if (event.changes && !event.changes.empty || event.effects.length) { // Event survived mapping\n let result = branch.slice(0, length);\n result[length - 1] = event;\n return result;\n }\n else { // Drop this event, since there's no changes or effects left\n mapping = event.mapped;\n length--;\n selections = event.selectionsAfter;\n }\n }\n return selections.length ? [HistEvent.selection(selections)] : none;\n}\nfunction mapEvent(event, mapping, extraSelections) {\n let selections = conc(event.selectionsAfter.length ? event.selectionsAfter.map(s => s.map(mapping)) : none, extraSelections);\n // Change-less events don't store mappings (they are always the last event in a branch)\n if (!event.changes)\n return HistEvent.selection(selections);\n let mappedChanges = event.changes.map(mapping), before = mapping.mapDesc(event.changes, true);\n let fullMapping = event.mapped ? event.mapped.composeDesc(before) : before;\n return new HistEvent(mappedChanges, StateEffect.mapEffects(event.effects, mapping), fullMapping, event.startSelection.map(before), selections);\n}\nconst joinableUserEvent = /^(input\\.type|delete)($|\\.)/;\nclass HistoryState {\n constructor(done, undone, prevTime = 0, prevUserEvent = undefined) {\n this.done = done;\n this.undone = undone;\n this.prevTime = prevTime;\n this.prevUserEvent = prevUserEvent;\n }\n isolate() {\n return this.prevTime ? new HistoryState(this.done, this.undone) : this;\n }\n addChanges(event, time, userEvent, config, tr) {\n let done = this.done, lastEvent = done[done.length - 1];\n if (lastEvent && lastEvent.changes && !lastEvent.changes.empty && event.changes &&\n (!userEvent || joinableUserEvent.test(userEvent)) &&\n ((!lastEvent.selectionsAfter.length &&\n time - this.prevTime < config.newGroupDelay &&\n config.joinToEvent(tr, isAdjacent(lastEvent.changes, event.changes))) ||\n // For compose (but not compose.start) events, always join with previous event\n userEvent == \"input.type.compose\")) {\n done = updateBranch(done, done.length - 1, config.minDepth, new HistEvent(event.changes.compose(lastEvent.changes), conc(event.effects, lastEvent.effects), lastEvent.mapped, lastEvent.startSelection, none));\n }\n else {\n done = updateBranch(done, done.length, config.minDepth, event);\n }\n return new HistoryState(done, none, time, userEvent);\n }\n addSelection(selection, time, userEvent, newGroupDelay) {\n let last = this.done.length ? this.done[this.done.length - 1].selectionsAfter : none;\n if (last.length > 0 &&\n time - this.prevTime < newGroupDelay &&\n userEvent == this.prevUserEvent && userEvent && /^select($|\\.)/.test(userEvent) &&\n eqSelectionShape(last[last.length - 1], selection))\n return this;\n return new HistoryState(addSelection(this.done, selection), this.undone, time, userEvent);\n }\n addMapping(mapping) {\n return new HistoryState(addMappingToBranch(this.done, mapping), addMappingToBranch(this.undone, mapping), this.prevTime, this.prevUserEvent);\n }\n pop(side, state, selection) {\n let branch = side == 0 /* BranchName.Done */ ? this.done : this.undone;\n if (branch.length == 0)\n return null;\n let event = branch[branch.length - 1];\n if (selection && event.selectionsAfter.length) {\n return state.update({\n selection: event.selectionsAfter[event.selectionsAfter.length - 1],\n annotations: fromHistory.of({ side, rest: popSelection(branch) }),\n userEvent: side == 0 /* BranchName.Done */ ? \"select.undo\" : \"select.redo\",\n scrollIntoView: true\n });\n }\n else if (!event.changes) {\n return null;\n }\n else {\n let rest = branch.length == 1 ? none : branch.slice(0, branch.length - 1);\n if (event.mapped)\n rest = addMappingToBranch(rest, event.mapped);\n return state.update({\n changes: event.changes,\n selection: event.startSelection,\n effects: event.effects,\n annotations: fromHistory.of({ side, rest }),\n filter: false,\n userEvent: side == 0 /* BranchName.Done */ ? \"undo\" : \"redo\",\n scrollIntoView: true\n });\n }\n }\n}\nHistoryState.empty = /*@__PURE__*/new HistoryState(none, none);\n/**\nDefault key bindings for the undo history.\n\n- Mod-z: [`undo`](https://codemirror.net/6/docs/ref/#commands.undo).\n- Mod-y (Mod-Shift-z on macOS) + Ctrl-Shift-z on Linux: [`redo`](https://codemirror.net/6/docs/ref/#commands.redo).\n- Mod-u: [`undoSelection`](https://codemirror.net/6/docs/ref/#commands.undoSelection).\n- Alt-u (Mod-Shift-u on macOS): [`redoSelection`](https://codemirror.net/6/docs/ref/#commands.redoSelection).\n*/\nconst historyKeymap = [\n { key: \"Mod-z\", run: undo, preventDefault: true },\n { key: \"Mod-y\", mac: \"Mod-Shift-z\", run: redo, preventDefault: true },\n { linux: \"Ctrl-Shift-z\", run: redo, preventDefault: true },\n { key: \"Mod-u\", run: undoSelection, preventDefault: true },\n { key: \"Alt-u\", mac: \"Mod-Shift-u\", run: redoSelection, preventDefault: true }\n];\n\nfunction updateSel(sel, by) {\n return EditorSelection.create(sel.ranges.map(by), sel.mainIndex);\n}\nfunction setSel(state, selection) {\n return state.update({ selection, scrollIntoView: true, userEvent: \"select\" });\n}\nfunction moveSel({ state, dispatch }, how) {\n let selection = updateSel(state.selection, how);\n if (selection.eq(state.selection))\n return false;\n dispatch(setSel(state, selection));\n return true;\n}\nfunction rangeEnd(range, forward) {\n return EditorSelection.cursor(forward ? range.to : range.from);\n}\nfunction cursorByChar(view, forward) {\n return moveSel(view, range => range.empty ? view.moveByChar(range, forward) : rangeEnd(range, forward));\n}\nfunction ltrAtCursor(view) {\n return view.textDirectionAt(view.state.selection.main.head) == Direction.LTR;\n}\n/**\nMove the selection one character to the left (which is backward in\nleft-to-right text, forward in right-to-left text).\n*/\nconst cursorCharLeft = view => cursorByChar(view, !ltrAtCursor(view));\n/**\nMove the selection one character to the right.\n*/\nconst cursorCharRight = view => cursorByChar(view, ltrAtCursor(view));\n/**\nMove the selection one character forward.\n*/\nconst cursorCharForward = view => cursorByChar(view, true);\n/**\nMove the selection one character backward.\n*/\nconst cursorCharBackward = view => cursorByChar(view, false);\nfunction cursorByGroup(view, forward) {\n return moveSel(view, range => range.empty ? view.moveByGroup(range, forward) : rangeEnd(range, forward));\n}\n/**\nMove the selection to the left across one group of word or\nnon-word (but also non-space) characters.\n*/\nconst cursorGroupLeft = view => cursorByGroup(view, !ltrAtCursor(view));\n/**\nMove the selection one group to the right.\n*/\nconst cursorGroupRight = view => cursorByGroup(view, ltrAtCursor(view));\n/**\nMove the selection one group forward.\n*/\nconst cursorGroupForward = view => cursorByGroup(view, true);\n/**\nMove the selection one group backward.\n*/\nconst cursorGroupBackward = view => cursorByGroup(view, false);\nconst segmenter = typeof Intl != \"undefined\" && Intl.Segmenter ?\n /*@__PURE__*/new (Intl.Segmenter)(undefined, { granularity: \"word\" }) : null;\nfunction moveBySubword(view, range, forward) {\n let categorize = view.state.charCategorizer(range.from);\n let cat = CharCategory.Space, pos = range.from, steps = 0;\n let done = false, sawUpper = false, sawLower = false;\n let step = (next) => {\n if (done)\n return false;\n pos += forward ? next.length : -next.length;\n let nextCat = categorize(next), ahead;\n if (nextCat == CharCategory.Word && next.charCodeAt(0) < 128 && /[\\W_]/.test(next))\n nextCat = -1; // Treat word punctuation specially\n if (cat == CharCategory.Space)\n cat = nextCat;\n if (cat != nextCat)\n return false;\n if (cat == CharCategory.Word) {\n if (next.toLowerCase() == next) {\n if (!forward && sawUpper)\n return false;\n sawLower = true;\n }\n else if (sawLower) {\n if (forward)\n return false;\n done = true;\n }\n else {\n if (sawUpper && forward && categorize(ahead = view.state.sliceDoc(pos, pos + 1)) == CharCategory.Word &&\n ahead.toLowerCase() == ahead)\n return false;\n sawUpper = true;\n }\n }\n steps++;\n return true;\n };\n let end = view.moveByChar(range, forward, start => {\n step(start);\n return step;\n });\n if (segmenter && cat == CharCategory.Word && end.from == range.from + steps * (forward ? 1 : -1)) {\n let from = Math.min(range.head, end.head), to = Math.max(range.head, end.head);\n let skipped = view.state.sliceDoc(from, to);\n if (skipped.length > 1 && /[\\u4E00-\\uffff]/.test(skipped)) {\n let segments = Array.from(segmenter.segment(skipped));\n if (segments.length > 1) {\n if (forward)\n return EditorSelection.cursor(range.head + segments[1].index, -1);\n return EditorSelection.cursor(end.head + segments[segments.length - 1].index, 1);\n }\n }\n }\n return end;\n}\nfunction cursorBySubword(view, forward) {\n return moveSel(view, range => range.empty ? moveBySubword(view, range, forward) : rangeEnd(range, forward));\n}\n/**\nMove the selection one group or camel-case subword forward.\n*/\nconst cursorSubwordForward = view => cursorBySubword(view, true);\n/**\nMove the selection one group or camel-case subword backward.\n*/\nconst cursorSubwordBackward = view => cursorBySubword(view, false);\nfunction interestingNode(state, node, bracketProp) {\n if (node.type.prop(bracketProp))\n return true;\n let len = node.to - node.from;\n return len && (len > 2 || /[^\\s,.;:]/.test(state.sliceDoc(node.from, node.to))) || node.firstChild;\n}\nfunction moveBySyntax(state, start, forward) {\n let pos = syntaxTree(state).resolveInner(start.head);\n let bracketProp = forward ? NodeProp.closedBy : NodeProp.openedBy;\n // Scan forward through child nodes to see if there's an interesting\n // node ahead.\n for (let at = start.head;;) {\n let next = forward ? pos.childAfter(at) : pos.childBefore(at);\n if (!next)\n break;\n if (interestingNode(state, next, bracketProp))\n pos = next;\n else\n at = forward ? next.to : next.from;\n }\n let bracket = pos.type.prop(bracketProp), match, newPos;\n if (bracket && (match = forward ? matchBrackets(state, pos.from, 1) : matchBrackets(state, pos.to, -1)) && match.matched)\n newPos = forward ? match.end.to : match.end.from;\n else\n newPos = forward ? pos.to : pos.from;\n return EditorSelection.cursor(newPos, forward ? -1 : 1);\n}\n/**\nMove the cursor over the next syntactic element to the left.\n*/\nconst cursorSyntaxLeft = view => moveSel(view, range => moveBySyntax(view.state, range, !ltrAtCursor(view)));\n/**\nMove the cursor over the next syntactic element to the right.\n*/\nconst cursorSyntaxRight = view => moveSel(view, range => moveBySyntax(view.state, range, ltrAtCursor(view)));\nfunction cursorByLine(view, forward) {\n return moveSel(view, range => {\n if (!range.empty)\n return rangeEnd(range, forward);\n let moved = view.moveVertically(range, forward);\n return moved.head != range.head ? moved : view.moveToLineBoundary(range, forward);\n });\n}\n/**\nMove the selection one line up.\n*/\nconst cursorLineUp = view => cursorByLine(view, false);\n/**\nMove the selection one line down.\n*/\nconst cursorLineDown = view => cursorByLine(view, true);\nfunction pageInfo(view) {\n let selfScroll = view.scrollDOM.clientHeight < view.scrollDOM.scrollHeight - 2;\n let marginTop = 0, marginBottom = 0, height;\n if (selfScroll) {\n for (let source of view.state.facet(EditorView.scrollMargins)) {\n let margins = source(view);\n if (margins === null || margins === void 0 ? void 0 : margins.top)\n marginTop = Math.max(margins === null || margins === void 0 ? void 0 : margins.top, marginTop);\n if (margins === null || margins === void 0 ? void 0 : margins.bottom)\n marginBottom = Math.max(margins === null || margins === void 0 ? void 0 : margins.bottom, marginBottom);\n }\n height = view.scrollDOM.clientHeight - marginTop - marginBottom;\n }\n else {\n height = (view.dom.ownerDocument.defaultView || window).innerHeight;\n }\n return { marginTop, marginBottom, selfScroll,\n height: Math.max(view.defaultLineHeight, height - 5) };\n}\nfunction cursorByPage(view, forward) {\n let page = pageInfo(view);\n let { state } = view, selection = updateSel(state.selection, range => {\n return range.empty ? view.moveVertically(range, forward, page.height)\n : rangeEnd(range, forward);\n });\n if (selection.eq(state.selection))\n return false;\n let effect;\n if (page.selfScroll) {\n let startPos = view.coordsAtPos(state.selection.main.head);\n let scrollRect = view.scrollDOM.getBoundingClientRect();\n let scrollTop = scrollRect.top + page.marginTop, scrollBottom = scrollRect.bottom - page.marginBottom;\n if (startPos && startPos.top > scrollTop && startPos.bottom < scrollBottom)\n effect = EditorView.scrollIntoView(selection.main.head, { y: \"start\", yMargin: startPos.top - scrollTop });\n }\n view.dispatch(setSel(state, selection), { effects: effect });\n return true;\n}\n/**\nMove the selection one page up.\n*/\nconst cursorPageUp = view => cursorByPage(view, false);\n/**\nMove the selection one page down.\n*/\nconst cursorPageDown = view => cursorByPage(view, true);\nfunction moveByLineBoundary(view, start, forward) {\n let line = view.lineBlockAt(start.head), moved = view.moveToLineBoundary(start, forward);\n if (moved.head == start.head && moved.head != (forward ? line.to : line.from))\n moved = view.moveToLineBoundary(start, forward, false);\n if (!forward && moved.head == line.from && line.length) {\n let space = /^\\s*/.exec(view.state.sliceDoc(line.from, Math.min(line.from + 100, line.to)))[0].length;\n if (space && start.head != line.from + space)\n moved = EditorSelection.cursor(line.from + space);\n }\n return moved;\n}\n/**\nMove the selection to the next line wrap point, or to the end of\nthe line if there isn't one left on this line.\n*/\nconst cursorLineBoundaryForward = view => moveSel(view, range => moveByLineBoundary(view, range, true));\n/**\nMove the selection to previous line wrap point, or failing that to\nthe start of the line. If the line is indented, and the cursor\nisn't already at the end of the indentation, this will move to the\nend of the indentation instead of the start of the line.\n*/\nconst cursorLineBoundaryBackward = view => moveSel(view, range => moveByLineBoundary(view, range, false));\n/**\nMove the selection one line wrap point to the left.\n*/\nconst cursorLineBoundaryLeft = view => moveSel(view, range => moveByLineBoundary(view, range, !ltrAtCursor(view)));\n/**\nMove the selection one line wrap point to the right.\n*/\nconst cursorLineBoundaryRight = view => moveSel(view, range => moveByLineBoundary(view, range, ltrAtCursor(view)));\n/**\nMove the selection to the start of the line.\n*/\nconst cursorLineStart = view => moveSel(view, range => EditorSelection.cursor(view.lineBlockAt(range.head).from, 1));\n/**\nMove the selection to the end of the line.\n*/\nconst cursorLineEnd = view => moveSel(view, range => EditorSelection.cursor(view.lineBlockAt(range.head).to, -1));\nfunction toMatchingBracket(state, dispatch, extend) {\n let found = false, selection = updateSel(state.selection, range => {\n let matching = matchBrackets(state, range.head, -1)\n || matchBrackets(state, range.head, 1)\n || (range.head > 0 && matchBrackets(state, range.head - 1, 1))\n || (range.head < state.doc.length && matchBrackets(state, range.head + 1, -1));\n if (!matching || !matching.end)\n return range;\n found = true;\n let head = matching.start.from == range.head ? matching.end.to : matching.end.from;\n return extend ? EditorSelection.range(range.anchor, head) : EditorSelection.cursor(head);\n });\n if (!found)\n return false;\n dispatch(setSel(state, selection));\n return true;\n}\n/**\nMove the selection to the bracket matching the one it is currently\non, if any.\n*/\nconst cursorMatchingBracket = ({ state, dispatch }) => toMatchingBracket(state, dispatch, false);\n/**\nExtend the selection to the bracket matching the one the selection\nhead is currently on, if any.\n*/\nconst selectMatchingBracket = ({ state, dispatch }) => toMatchingBracket(state, dispatch, true);\nfunction extendSel(view, how) {\n let selection = updateSel(view.state.selection, range => {\n let head = how(range);\n return EditorSelection.range(range.anchor, head.head, head.goalColumn, head.bidiLevel || undefined);\n });\n if (selection.eq(view.state.selection))\n return false;\n view.dispatch(setSel(view.state, selection));\n return true;\n}\nfunction selectByChar(view, forward) {\n return extendSel(view, range => view.moveByChar(range, forward));\n}\n/**\nMove the selection head one character to the left, while leaving\nthe anchor in place.\n*/\nconst selectCharLeft = view => selectByChar(view, !ltrAtCursor(view));\n/**\nMove the selection head one character to the right.\n*/\nconst selectCharRight = view => selectByChar(view, ltrAtCursor(view));\n/**\nMove the selection head one character forward.\n*/\nconst selectCharForward = view => selectByChar(view, true);\n/**\nMove the selection head one character backward.\n*/\nconst selectCharBackward = view => selectByChar(view, false);\nfunction selectByGroup(view, forward) {\n return extendSel(view, range => view.moveByGroup(range, forward));\n}\n/**\nMove the selection head one [group](https://codemirror.net/6/docs/ref/#commands.cursorGroupLeft) to\nthe left.\n*/\nconst selectGroupLeft = view => selectByGroup(view, !ltrAtCursor(view));\n/**\nMove the selection head one group to the right.\n*/\nconst selectGroupRight = view => selectByGroup(view, ltrAtCursor(view));\n/**\nMove the selection head one group forward.\n*/\nconst selectGroupForward = view => selectByGroup(view, true);\n/**\nMove the selection head one group backward.\n*/\nconst selectGroupBackward = view => selectByGroup(view, false);\nfunction selectBySubword(view, forward) {\n return extendSel(view, range => moveBySubword(view, range, forward));\n}\n/**\nMove the selection head one group or camel-case subword forward.\n*/\nconst selectSubwordForward = view => selectBySubword(view, true);\n/**\nMove the selection head one group or subword backward.\n*/\nconst selectSubwordBackward = view => selectBySubword(view, false);\n/**\nMove the selection head over the next syntactic element to the left.\n*/\nconst selectSyntaxLeft = view => extendSel(view, range => moveBySyntax(view.state, range, !ltrAtCursor(view)));\n/**\nMove the selection head over the next syntactic element to the right.\n*/\nconst selectSyntaxRight = view => extendSel(view, range => moveBySyntax(view.state, range, ltrAtCursor(view)));\nfunction selectByLine(view, forward) {\n return extendSel(view, range => view.moveVertically(range, forward));\n}\n/**\nMove the selection head one line up.\n*/\nconst selectLineUp = view => selectByLine(view, false);\n/**\nMove the selection head one line down.\n*/\nconst selectLineDown = view => selectByLine(view, true);\nfunction selectByPage(view, forward) {\n return extendSel(view, range => view.moveVertically(range, forward, pageInfo(view).height));\n}\n/**\nMove the selection head one page up.\n*/\nconst selectPageUp = view => selectByPage(view, false);\n/**\nMove the selection head one page down.\n*/\nconst selectPageDown = view => selectByPage(view, true);\n/**\nMove the selection head to the next line boundary.\n*/\nconst selectLineBoundaryForward = view => extendSel(view, range => moveByLineBoundary(view, range, true));\n/**\nMove the selection head to the previous line boundary.\n*/\nconst selectLineBoundaryBackward = view => extendSel(view, range => moveByLineBoundary(view, range, false));\n/**\nMove the selection head one line boundary to the left.\n*/\nconst selectLineBoundaryLeft = view => extendSel(view, range => moveByLineBoundary(view, range, !ltrAtCursor(view)));\n/**\nMove the selection head one line boundary to the right.\n*/\nconst selectLineBoundaryRight = view => extendSel(view, range => moveByLineBoundary(view, range, ltrAtCursor(view)));\n/**\nMove the selection head to the start of the line.\n*/\nconst selectLineStart = view => extendSel(view, range => EditorSelection.cursor(view.lineBlockAt(range.head).from));\n/**\nMove the selection head to the end of the line.\n*/\nconst selectLineEnd = view => extendSel(view, range => EditorSelection.cursor(view.lineBlockAt(range.head).to));\n/**\nMove the selection to the start of the document.\n*/\nconst cursorDocStart = ({ state, dispatch }) => {\n dispatch(setSel(state, { anchor: 0 }));\n return true;\n};\n/**\nMove the selection to the end of the document.\n*/\nconst cursorDocEnd = ({ state, dispatch }) => {\n dispatch(setSel(state, { anchor: state.doc.length }));\n return true;\n};\n/**\nMove the selection head to the start of the document.\n*/\nconst selectDocStart = ({ state, dispatch }) => {\n dispatch(setSel(state, { anchor: state.selection.main.anchor, head: 0 }));\n return true;\n};\n/**\nMove the selection head to the end of the document.\n*/\nconst selectDocEnd = ({ state, dispatch }) => {\n dispatch(setSel(state, { anchor: state.selection.main.anchor, head: state.doc.length }));\n return true;\n};\n/**\nSelect the entire document.\n*/\nconst selectAll = ({ state, dispatch }) => {\n dispatch(state.update({ selection: { anchor: 0, head: state.doc.length }, userEvent: \"select\" }));\n return true;\n};\n/**\nExpand the selection to cover entire lines.\n*/\nconst selectLine = ({ state, dispatch }) => {\n let ranges = selectedLineBlocks(state).map(({ from, to }) => EditorSelection.range(from, Math.min(to + 1, state.doc.length)));\n dispatch(state.update({ selection: EditorSelection.create(ranges), userEvent: \"select\" }));\n return true;\n};\n/**\nSelect the next syntactic construct that is larger than the\nselection. Note that this will only work insofar as the language\n[provider](https://codemirror.net/6/docs/ref/#language.language) you use builds up a full\nsyntax tree.\n*/\nconst selectParentSyntax = ({ state, dispatch }) => {\n let selection = updateSel(state.selection, range => {\n var _a;\n let stack = syntaxTree(state).resolveStack(range.from, 1);\n for (let cur = stack; cur; cur = cur.next) {\n let { node } = cur;\n if (((node.from < range.from && node.to >= range.to) ||\n (node.to > range.to && node.from <= range.from)) &&\n ((_a = node.parent) === null || _a === void 0 ? void 0 : _a.parent))\n return EditorSelection.range(node.to, node.from);\n }\n return range;\n });\n dispatch(setSel(state, selection));\n return true;\n};\n/**\nSimplify the current selection. When multiple ranges are selected,\nreduce it to its main range. Otherwise, if the selection is\nnon-empty, convert it to a cursor selection.\n*/\nconst simplifySelection = ({ state, dispatch }) => {\n let cur = state.selection, selection = null;\n if (cur.ranges.length > 1)\n selection = EditorSelection.create([cur.main]);\n else if (!cur.main.empty)\n selection = EditorSelection.create([EditorSelection.cursor(cur.main.head)]);\n if (!selection)\n return false;\n dispatch(setSel(state, selection));\n return true;\n};\nfunction deleteBy(target, by) {\n if (target.state.readOnly)\n return false;\n let event = \"delete.selection\", { state } = target;\n let changes = state.changeByRange(range => {\n let { from, to } = range;\n if (from == to) {\n let towards = by(range);\n if (towards < from) {\n event = \"delete.backward\";\n towards = skipAtomic(target, towards, false);\n }\n else if (towards > from) {\n event = \"delete.forward\";\n towards = skipAtomic(target, towards, true);\n }\n from = Math.min(from, towards);\n to = Math.max(to, towards);\n }\n else {\n from = skipAtomic(target, from, false);\n to = skipAtomic(target, to, true);\n }\n return from == to ? { range } : { changes: { from, to }, range: EditorSelection.cursor(from, from < range.head ? -1 : 1) };\n });\n if (changes.changes.empty)\n return false;\n target.dispatch(state.update(changes, {\n scrollIntoView: true,\n userEvent: event,\n effects: event == \"delete.selection\" ? EditorView.announce.of(state.phrase(\"Selection deleted\")) : undefined\n }));\n return true;\n}\nfunction skipAtomic(target, pos, forward) {\n if (target instanceof EditorView)\n for (let ranges of target.state.facet(EditorView.atomicRanges).map(f => f(target)))\n ranges.between(pos, pos, (from, to) => {\n if (from < pos && to > pos)\n pos = forward ? to : from;\n });\n return pos;\n}\nconst deleteByChar = (target, forward) => deleteBy(target, range => {\n let pos = range.from, { state } = target, line = state.doc.lineAt(pos), before, targetPos;\n if (!forward && pos > line.from && pos < line.from + 200 &&\n !/[^ \\t]/.test(before = line.text.slice(0, pos - line.from))) {\n if (before[before.length - 1] == \"\\t\")\n return pos - 1;\n let col = countColumn(before, state.tabSize), drop = col % getIndentUnit(state) || getIndentUnit(state);\n for (let i = 0; i < drop && before[before.length - 1 - i] == \" \"; i++)\n pos--;\n targetPos = pos;\n }\n else {\n targetPos = findClusterBreak(line.text, pos - line.from, forward, forward) + line.from;\n if (targetPos == pos && line.number != (forward ? state.doc.lines : 1))\n targetPos += forward ? 1 : -1;\n }\n return targetPos;\n});\n/**\nDelete the selection, or, for cursor selections, the character\nbefore the cursor.\n*/\nconst deleteCharBackward = view => deleteByChar(view, false);\n/**\nDelete the selection or the character after the cursor.\n*/\nconst deleteCharForward = view => deleteByChar(view, true);\nconst deleteByGroup = (target, forward) => deleteBy(target, range => {\n let pos = range.head, { state } = target, line = state.doc.lineAt(pos);\n let categorize = state.charCategorizer(pos);\n for (let cat = null;;) {\n if (pos == (forward ? line.to : line.from)) {\n if (pos == range.head && line.number != (forward ? state.doc.lines : 1))\n pos += forward ? 1 : -1;\n break;\n }\n let next = findClusterBreak(line.text, pos - line.from, forward) + line.from;\n let nextChar = line.text.slice(Math.min(pos, next) - line.from, Math.max(pos, next) - line.from);\n let nextCat = categorize(nextChar);\n if (cat != null && nextCat != cat)\n break;\n if (nextChar != \" \" || pos != range.head)\n cat = nextCat;\n pos = next;\n }\n return pos;\n});\n/**\nDelete the selection or backward until the end of the next\n[group](https://codemirror.net/6/docs/ref/#view.EditorView.moveByGroup), only skipping groups of\nwhitespace when they consist of a single space.\n*/\nconst deleteGroupBackward = target => deleteByGroup(target, false);\n/**\nDelete the selection or forward until the end of the next group.\n*/\nconst deleteGroupForward = target => deleteByGroup(target, true);\n/**\nDelete the selection, or, if it is a cursor selection, delete to\nthe end of the line. If the cursor is directly at the end of the\nline, delete the line break after it.\n*/\nconst deleteToLineEnd = view => deleteBy(view, range => {\n let lineEnd = view.lineBlockAt(range.head).to;\n return range.head < lineEnd ? lineEnd : Math.min(view.state.doc.length, range.head + 1);\n});\n/**\nDelete the selection, or, if it is a cursor selection, delete to\nthe start of the line. If the cursor is directly at the start of the\nline, delete the line break before it.\n*/\nconst deleteToLineStart = view => deleteBy(view, range => {\n let lineStart = view.lineBlockAt(range.head).from;\n return range.head > lineStart ? lineStart : Math.max(0, range.head - 1);\n});\n/**\nDelete the selection, or, if it is a cursor selection, delete to\nthe start of the line or the next line wrap before the cursor.\n*/\nconst deleteLineBoundaryBackward = view => deleteBy(view, range => {\n let lineStart = view.moveToLineBoundary(range, false).head;\n return range.head > lineStart ? lineStart : Math.max(0, range.head - 1);\n});\n/**\nDelete the selection, or, if it is a cursor selection, delete to\nthe end of the line or the next line wrap after the cursor.\n*/\nconst deleteLineBoundaryForward = view => deleteBy(view, range => {\n let lineStart = view.moveToLineBoundary(range, true).head;\n return range.head < lineStart ? lineStart : Math.min(view.state.doc.length, range.head + 1);\n});\n/**\nDelete all whitespace directly before a line end from the\ndocument.\n*/\nconst deleteTrailingWhitespace = ({ state, dispatch }) => {\n if (state.readOnly)\n return false;\n let changes = [];\n for (let pos = 0, prev = \"\", iter = state.doc.iter();;) {\n iter.next();\n if (iter.lineBreak || iter.done) {\n let trailing = prev.search(/\\s+$/);\n if (trailing > -1)\n changes.push({ from: pos - (prev.length - trailing), to: pos });\n if (iter.done)\n break;\n prev = \"\";\n }\n else {\n prev = iter.value;\n }\n pos += iter.value.length;\n }\n if (!changes.length)\n return false;\n dispatch(state.update({ changes, userEvent: \"delete\" }));\n return true;\n};\n/**\nReplace each selection range with a line break, leaving the cursor\non the line before the break.\n*/\nconst splitLine = ({ state, dispatch }) => {\n if (state.readOnly)\n return false;\n let changes = state.changeByRange(range => {\n return { changes: { from: range.from, to: range.to, insert: Text.of([\"\", \"\"]) },\n range: EditorSelection.cursor(range.from) };\n });\n dispatch(state.update(changes, { scrollIntoView: true, userEvent: \"input\" }));\n return true;\n};\n/**\nFlip the characters before and after the cursor(s).\n*/\nconst transposeChars = ({ state, dispatch }) => {\n if (state.readOnly)\n return false;\n let changes = state.changeByRange(range => {\n if (!range.empty || range.from == 0 || range.from == state.doc.length)\n return { range };\n let pos = range.from, line = state.doc.lineAt(pos);\n let from = pos == line.from ? pos - 1 : findClusterBreak(line.text, pos - line.from, false) + line.from;\n let to = pos == line.to ? pos + 1 : findClusterBreak(line.text, pos - line.from, true) + line.from;\n return { changes: { from, to, insert: state.doc.slice(pos, to).append(state.doc.slice(from, pos)) },\n range: EditorSelection.cursor(to) };\n });\n if (changes.changes.empty)\n return false;\n dispatch(state.update(changes, { scrollIntoView: true, userEvent: \"move.character\" }));\n return true;\n};\nfunction selectedLineBlocks(state) {\n let blocks = [], upto = -1;\n for (let range of state.selection.ranges) {\n let startLine = state.doc.lineAt(range.from), endLine = state.doc.lineAt(range.to);\n if (!range.empty && range.to == endLine.from)\n endLine = state.doc.lineAt(range.to - 1);\n if (upto >= startLine.number) {\n let prev = blocks[blocks.length - 1];\n prev.to = endLine.to;\n prev.ranges.push(range);\n }\n else {\n blocks.push({ from: startLine.from, to: endLine.to, ranges: [range] });\n }\n upto = endLine.number + 1;\n }\n return blocks;\n}\nfunction moveLine(state, dispatch, forward) {\n if (state.readOnly)\n return false;\n let changes = [], ranges = [];\n for (let block of selectedLineBlocks(state)) {\n if (forward ? block.to == state.doc.length : block.from == 0)\n continue;\n let nextLine = state.doc.lineAt(forward ? block.to + 1 : block.from - 1);\n let size = nextLine.length + 1;\n if (forward) {\n changes.push({ from: block.to, to: nextLine.to }, { from: block.from, insert: nextLine.text + state.lineBreak });\n for (let r of block.ranges)\n ranges.push(EditorSelection.range(Math.min(state.doc.length, r.anchor + size), Math.min(state.doc.length, r.head + size)));\n }\n else {\n changes.push({ from: nextLine.from, to: block.from }, { from: block.to, insert: state.lineBreak + nextLine.text });\n for (let r of block.ranges)\n ranges.push(EditorSelection.range(r.anchor - size, r.head - size));\n }\n }\n if (!changes.length)\n return false;\n dispatch(state.update({\n changes,\n scrollIntoView: true,\n selection: EditorSelection.create(ranges, state.selection.mainIndex),\n userEvent: \"move.line\"\n }));\n return true;\n}\n/**\nMove the selected lines up one line.\n*/\nconst moveLineUp = ({ state, dispatch }) => moveLine(state, dispatch, false);\n/**\nMove the selected lines down one line.\n*/\nconst moveLineDown = ({ state, dispatch }) => moveLine(state, dispatch, true);\nfunction copyLine(state, dispatch, forward) {\n if (state.readOnly)\n return false;\n let changes = [];\n for (let block of selectedLineBlocks(state)) {\n if (forward)\n changes.push({ from: block.from, insert: state.doc.slice(block.from, block.to) + state.lineBreak });\n else\n changes.push({ from: block.to, insert: state.lineBreak + state.doc.slice(block.from, block.to) });\n }\n dispatch(state.update({ changes, scrollIntoView: true, userEvent: \"input.copyline\" }));\n return true;\n}\n/**\nCreate a copy of the selected lines. Keep the selection in the top copy.\n*/\nconst copyLineUp = ({ state, dispatch }) => copyLine(state, dispatch, false);\n/**\nCreate a copy of the selected lines. Keep the selection in the bottom copy.\n*/\nconst copyLineDown = ({ state, dispatch }) => copyLine(state, dispatch, true);\n/**\nDelete selected lines.\n*/\nconst deleteLine = view => {\n if (view.state.readOnly)\n return false;\n let { state } = view, changes = state.changes(selectedLineBlocks(state).map(({ from, to }) => {\n if (from > 0)\n from--;\n else if (to < state.doc.length)\n to++;\n return { from, to };\n }));\n let selection = updateSel(state.selection, range => view.moveVertically(range, true)).map(changes);\n view.dispatch({ changes, selection, scrollIntoView: true, userEvent: \"delete.line\" });\n return true;\n};\n/**\nReplace the selection with a newline.\n*/\nconst insertNewline = ({ state, dispatch }) => {\n dispatch(state.update(state.replaceSelection(state.lineBreak), { scrollIntoView: true, userEvent: \"input\" }));\n return true;\n};\nfunction isBetweenBrackets(state, pos) {\n if (/\\(\\)|\\[\\]|\\{\\}/.test(state.sliceDoc(pos - 1, pos + 1)))\n return { from: pos, to: pos };\n let context = syntaxTree(state).resolveInner(pos);\n let before = context.childBefore(pos), after = context.childAfter(pos), closedBy;\n if (before && after && before.to <= pos && after.from >= pos &&\n (closedBy = before.type.prop(NodeProp.closedBy)) && closedBy.indexOf(after.name) > -1 &&\n state.doc.lineAt(before.to).from == state.doc.lineAt(after.from).from &&\n !/\\S/.test(state.sliceDoc(before.to, after.from)))\n return { from: before.to, to: after.from };\n return null;\n}\n/**\nReplace the selection with a newline and indent the newly created\nline(s). If the current line consists only of whitespace, this\nwill also delete that whitespace. When the cursor is between\nmatching brackets, an additional newline will be inserted after\nthe cursor.\n*/\nconst insertNewlineAndIndent = /*@__PURE__*/newlineAndIndent(false);\n/**\nCreate a blank, indented line below the current line.\n*/\nconst insertBlankLine = /*@__PURE__*/newlineAndIndent(true);\nfunction newlineAndIndent(atEof) {\n return ({ state, dispatch }) => {\n if (state.readOnly)\n return false;\n let changes = state.changeByRange(range => {\n let { from, to } = range, line = state.doc.lineAt(from);\n let explode = !atEof && from == to && isBetweenBrackets(state, from);\n if (atEof)\n from = to = (to <= line.to ? line : state.doc.lineAt(to)).to;\n let cx = new IndentContext(state, { simulateBreak: from, simulateDoubleBreak: !!explode });\n let indent = getIndentation(cx, from);\n if (indent == null)\n indent = countColumn(/^\\s*/.exec(state.doc.lineAt(from).text)[0], state.tabSize);\n while (to < line.to && /\\s/.test(line.text[to - line.from]))\n to++;\n if (explode)\n ({ from, to } = explode);\n else if (from > line.from && from < line.from + 100 && !/\\S/.test(line.text.slice(0, from)))\n from = line.from;\n let insert = [\"\", indentString(state, indent)];\n if (explode)\n insert.push(indentString(state, cx.lineIndent(line.from, -1)));\n return { changes: { from, to, insert: Text.of(insert) },\n range: EditorSelection.cursor(from + 1 + insert[1].length) };\n });\n dispatch(state.update(changes, { scrollIntoView: true, userEvent: \"input\" }));\n return true;\n };\n}\nfunction changeBySelectedLine(state, f) {\n let atLine = -1;\n return state.changeByRange(range => {\n let changes = [];\n for (let pos = range.from; pos <= range.to;) {\n let line = state.doc.lineAt(pos);\n if (line.number > atLine && (range.empty || range.to > line.from)) {\n f(line, changes, range);\n atLine = line.number;\n }\n pos = line.to + 1;\n }\n let changeSet = state.changes(changes);\n return { changes,\n range: EditorSelection.range(changeSet.mapPos(range.anchor, 1), changeSet.mapPos(range.head, 1)) };\n });\n}\n/**\nAuto-indent the selected lines. This uses the [indentation service\nfacet](https://codemirror.net/6/docs/ref/#language.indentService) as source for auto-indent\ninformation.\n*/\nconst indentSelection = ({ state, dispatch }) => {\n if (state.readOnly)\n return false;\n let updated = Object.create(null);\n let context = new IndentContext(state, { overrideIndentation: start => {\n let found = updated[start];\n return found == null ? -1 : found;\n } });\n let changes = changeBySelectedLine(state, (line, changes, range) => {\n let indent = getIndentation(context, line.from);\n if (indent == null)\n return;\n if (!/\\S/.test(line.text))\n indent = 0;\n let cur = /^\\s*/.exec(line.text)[0];\n let norm = indentString(state, indent);\n if (cur != norm || range.from < line.from + cur.length) {\n updated[line.from] = indent;\n changes.push({ from: line.from, to: line.from + cur.length, insert: norm });\n }\n });\n if (!changes.changes.empty)\n dispatch(state.update(changes, { userEvent: \"indent\" }));\n return true;\n};\n/**\nAdd a [unit](https://codemirror.net/6/docs/ref/#language.indentUnit) of indentation to all selected\nlines.\n*/\nconst indentMore = ({ state, dispatch }) => {\n if (state.readOnly)\n return false;\n dispatch(state.update(changeBySelectedLine(state, (line, changes) => {\n changes.push({ from: line.from, insert: state.facet(indentUnit) });\n }), { userEvent: \"input.indent\" }));\n return true;\n};\n/**\nRemove a [unit](https://codemirror.net/6/docs/ref/#language.indentUnit) of indentation from all\nselected lines.\n*/\nconst indentLess = ({ state, dispatch }) => {\n if (state.readOnly)\n return false;\n dispatch(state.update(changeBySelectedLine(state, (line, changes) => {\n let space = /^\\s*/.exec(line.text)[0];\n if (!space)\n return;\n let col = countColumn(space, state.tabSize), keep = 0;\n let insert = indentString(state, Math.max(0, col - getIndentUnit(state)));\n while (keep < space.length && keep < insert.length && space.charCodeAt(keep) == insert.charCodeAt(keep))\n keep++;\n changes.push({ from: line.from + keep, to: line.from + space.length, insert: insert.slice(keep) });\n }), { userEvent: \"delete.dedent\" }));\n return true;\n};\n/**\nInsert a tab character at the cursor or, if something is selected,\nuse [`indentMore`](https://codemirror.net/6/docs/ref/#commands.indentMore) to indent the entire\nselection.\n*/\nconst insertTab = ({ state, dispatch }) => {\n if (state.selection.ranges.some(r => !r.empty))\n return indentMore({ state, dispatch });\n dispatch(state.update(state.replaceSelection(\"\\t\"), { scrollIntoView: true, userEvent: \"input\" }));\n return true;\n};\n/**\nArray of key bindings containing the Emacs-style bindings that are\navailable on macOS by default.\n\n - Ctrl-b: [`cursorCharLeft`](https://codemirror.net/6/docs/ref/#commands.cursorCharLeft) ([`selectCharLeft`](https://codemirror.net/6/docs/ref/#commands.selectCharLeft) with Shift)\n - Ctrl-f: [`cursorCharRight`](https://codemirror.net/6/docs/ref/#commands.cursorCharRight) ([`selectCharRight`](https://codemirror.net/6/docs/ref/#commands.selectCharRight) with Shift)\n - Ctrl-p: [`cursorLineUp`](https://codemirror.net/6/docs/ref/#commands.cursorLineUp) ([`selectLineUp`](https://codemirror.net/6/docs/ref/#commands.selectLineUp) with Shift)\n - Ctrl-n: [`cursorLineDown`](https://codemirror.net/6/docs/ref/#commands.cursorLineDown) ([`selectLineDown`](https://codemirror.net/6/docs/ref/#commands.selectLineDown) with Shift)\n - Ctrl-a: [`cursorLineStart`](https://codemirror.net/6/docs/ref/#commands.cursorLineStart) ([`selectLineStart`](https://codemirror.net/6/docs/ref/#commands.selectLineStart) with Shift)\n - Ctrl-e: [`cursorLineEnd`](https://codemirror.net/6/docs/ref/#commands.cursorLineEnd) ([`selectLineEnd`](https://codemirror.net/6/docs/ref/#commands.selectLineEnd) with Shift)\n - Ctrl-d: [`deleteCharForward`](https://codemirror.net/6/docs/ref/#commands.deleteCharForward)\n - Ctrl-h: [`deleteCharBackward`](https://codemirror.net/6/docs/ref/#commands.deleteCharBackward)\n - Ctrl-k: [`deleteToLineEnd`](https://codemirror.net/6/docs/ref/#commands.deleteToLineEnd)\n - Ctrl-Alt-h: [`deleteGroupBackward`](https://codemirror.net/6/docs/ref/#commands.deleteGroupBackward)\n - Ctrl-o: [`splitLine`](https://codemirror.net/6/docs/ref/#commands.splitLine)\n - Ctrl-t: [`transposeChars`](https://codemirror.net/6/docs/ref/#commands.transposeChars)\n - Ctrl-v: [`cursorPageDown`](https://codemirror.net/6/docs/ref/#commands.cursorPageDown)\n - Alt-v: [`cursorPageUp`](https://codemirror.net/6/docs/ref/#commands.cursorPageUp)\n*/\nconst emacsStyleKeymap = [\n { key: \"Ctrl-b\", run: cursorCharLeft, shift: selectCharLeft, preventDefault: true },\n { key: \"Ctrl-f\", run: cursorCharRight, shift: selectCharRight },\n { key: \"Ctrl-p\", run: cursorLineUp, shift: selectLineUp },\n { key: \"Ctrl-n\", run: cursorLineDown, shift: selectLineDown },\n { key: \"Ctrl-a\", run: cursorLineStart, shift: selectLineStart },\n { key: \"Ctrl-e\", run: cursorLineEnd, shift: selectLineEnd },\n { key: \"Ctrl-d\", run: deleteCharForward },\n { key: \"Ctrl-h\", run: deleteCharBackward },\n { key: \"Ctrl-k\", run: deleteToLineEnd },\n { key: \"Ctrl-Alt-h\", run: deleteGroupBackward },\n { key: \"Ctrl-o\", run: splitLine },\n { key: \"Ctrl-t\", run: transposeChars },\n { key: \"Ctrl-v\", run: cursorPageDown },\n];\n/**\nAn array of key bindings closely sticking to platform-standard or\nwidely used bindings. (This includes the bindings from\n[`emacsStyleKeymap`](https://codemirror.net/6/docs/ref/#commands.emacsStyleKeymap), with their `key`\nproperty changed to `mac`.)\n\n - ArrowLeft: [`cursorCharLeft`](https://codemirror.net/6/docs/ref/#commands.cursorCharLeft) ([`selectCharLeft`](https://codemirror.net/6/docs/ref/#commands.selectCharLeft) with Shift)\n - ArrowRight: [`cursorCharRight`](https://codemirror.net/6/docs/ref/#commands.cursorCharRight) ([`selectCharRight`](https://codemirror.net/6/docs/ref/#commands.selectCharRight) with Shift)\n - Ctrl-ArrowLeft (Alt-ArrowLeft on macOS): [`cursorGroupLeft`](https://codemirror.net/6/docs/ref/#commands.cursorGroupLeft) ([`selectGroupLeft`](https://codemirror.net/6/docs/ref/#commands.selectGroupLeft) with Shift)\n - Ctrl-ArrowRight (Alt-ArrowRight on macOS): [`cursorGroupRight`](https://codemirror.net/6/docs/ref/#commands.cursorGroupRight) ([`selectGroupRight`](https://codemirror.net/6/docs/ref/#commands.selectGroupRight) with Shift)\n - Cmd-ArrowLeft (on macOS): [`cursorLineStart`](https://codemirror.net/6/docs/ref/#commands.cursorLineStart) ([`selectLineStart`](https://codemirror.net/6/docs/ref/#commands.selectLineStart) with Shift)\n - Cmd-ArrowRight (on macOS): [`cursorLineEnd`](https://codemirror.net/6/docs/ref/#commands.cursorLineEnd) ([`selectLineEnd`](https://codemirror.net/6/docs/ref/#commands.selectLineEnd) with Shift)\n - ArrowUp: [`cursorLineUp`](https://codemirror.net/6/docs/ref/#commands.cursorLineUp) ([`selectLineUp`](https://codemirror.net/6/docs/ref/#commands.selectLineUp) with Shift)\n - ArrowDown: [`cursorLineDown`](https://codemirror.net/6/docs/ref/#commands.cursorLineDown) ([`selectLineDown`](https://codemirror.net/6/docs/ref/#commands.selectLineDown) with Shift)\n - Cmd-ArrowUp (on macOS): [`cursorDocStart`](https://codemirror.net/6/docs/ref/#commands.cursorDocStart) ([`selectDocStart`](https://codemirror.net/6/docs/ref/#commands.selectDocStart) with Shift)\n - Cmd-ArrowDown (on macOS): [`cursorDocEnd`](https://codemirror.net/6/docs/ref/#commands.cursorDocEnd) ([`selectDocEnd`](https://codemirror.net/6/docs/ref/#commands.selectDocEnd) with Shift)\n - Ctrl-ArrowUp (on macOS): [`cursorPageUp`](https://codemirror.net/6/docs/ref/#commands.cursorPageUp) ([`selectPageUp`](https://codemirror.net/6/docs/ref/#commands.selectPageUp) with Shift)\n - Ctrl-ArrowDown (on macOS): [`cursorPageDown`](https://codemirror.net/6/docs/ref/#commands.cursorPageDown) ([`selectPageDown`](https://codemirror.net/6/docs/ref/#commands.selectPageDown) with Shift)\n - PageUp: [`cursorPageUp`](https://codemirror.net/6/docs/ref/#commands.cursorPageUp) ([`selectPageUp`](https://codemirror.net/6/docs/ref/#commands.selectPageUp) with Shift)\n - PageDown: [`cursorPageDown`](https://codemirror.net/6/docs/ref/#commands.cursorPageDown) ([`selectPageDown`](https://codemirror.net/6/docs/ref/#commands.selectPageDown) with Shift)\n - Home: [`cursorLineBoundaryBackward`](https://codemirror.net/6/docs/ref/#commands.cursorLineBoundaryBackward) ([`selectLineBoundaryBackward`](https://codemirror.net/6/docs/ref/#commands.selectLineBoundaryBackward) with Shift)\n - End: [`cursorLineBoundaryForward`](https://codemirror.net/6/docs/ref/#commands.cursorLineBoundaryForward) ([`selectLineBoundaryForward`](https://codemirror.net/6/docs/ref/#commands.selectLineBoundaryForward) with Shift)\n - Ctrl-Home (Cmd-Home on macOS): [`cursorDocStart`](https://codemirror.net/6/docs/ref/#commands.cursorDocStart) ([`selectDocStart`](https://codemirror.net/6/docs/ref/#commands.selectDocStart) with Shift)\n - Ctrl-End (Cmd-Home on macOS): [`cursorDocEnd`](https://codemirror.net/6/docs/ref/#commands.cursorDocEnd) ([`selectDocEnd`](https://codemirror.net/6/docs/ref/#commands.selectDocEnd) with Shift)\n - Enter: [`insertNewlineAndIndent`](https://codemirror.net/6/docs/ref/#commands.insertNewlineAndIndent)\n - Ctrl-a (Cmd-a on macOS): [`selectAll`](https://codemirror.net/6/docs/ref/#commands.selectAll)\n - Backspace: [`deleteCharBackward`](https://codemirror.net/6/docs/ref/#commands.deleteCharBackward)\n - Delete: [`deleteCharForward`](https://codemirror.net/6/docs/ref/#commands.deleteCharForward)\n - Ctrl-Backspace (Alt-Backspace on macOS): [`deleteGroupBackward`](https://codemirror.net/6/docs/ref/#commands.deleteGroupBackward)\n - Ctrl-Delete (Alt-Delete on macOS): [`deleteGroupForward`](https://codemirror.net/6/docs/ref/#commands.deleteGroupForward)\n - Cmd-Backspace (macOS): [`deleteLineBoundaryBackward`](https://codemirror.net/6/docs/ref/#commands.deleteLineBoundaryBackward).\n - Cmd-Delete (macOS): [`deleteLineBoundaryForward`](https://codemirror.net/6/docs/ref/#commands.deleteLineBoundaryForward).\n*/\nconst standardKeymap = /*@__PURE__*/[\n { key: \"ArrowLeft\", run: cursorCharLeft, shift: selectCharLeft, preventDefault: true },\n { key: \"Mod-ArrowLeft\", mac: \"Alt-ArrowLeft\", run: cursorGroupLeft, shift: selectGroupLeft, preventDefault: true },\n { mac: \"Cmd-ArrowLeft\", run: cursorLineBoundaryLeft, shift: selectLineBoundaryLeft, preventDefault: true },\n { key: \"ArrowRight\", run: cursorCharRight, shift: selectCharRight, preventDefault: true },\n { key: \"Mod-ArrowRight\", mac: \"Alt-ArrowRight\", run: cursorGroupRight, shift: selectGroupRight, preventDefault: true },\n { mac: \"Cmd-ArrowRight\", run: cursorLineBoundaryRight, shift: selectLineBoundaryRight, preventDefault: true },\n { key: \"ArrowUp\", run: cursorLineUp, shift: selectLineUp, preventDefault: true },\n { mac: \"Cmd-ArrowUp\", run: cursorDocStart, shift: selectDocStart },\n { mac: \"Ctrl-ArrowUp\", run: cursorPageUp, shift: selectPageUp },\n { key: \"ArrowDown\", run: cursorLineDown, shift: selectLineDown, preventDefault: true },\n { mac: \"Cmd-ArrowDown\", run: cursorDocEnd, shift: selectDocEnd },\n { mac: \"Ctrl-ArrowDown\", run: cursorPageDown, shift: selectPageDown },\n { key: \"PageUp\", run: cursorPageUp, shift: selectPageUp },\n { key: \"PageDown\", run: cursorPageDown, shift: selectPageDown },\n { key: \"Home\", run: cursorLineBoundaryBackward, shift: selectLineBoundaryBackward, preventDefault: true },\n { key: \"Mod-Home\", run: cursorDocStart, shift: selectDocStart },\n { key: \"End\", run: cursorLineBoundaryForward, shift: selectLineBoundaryForward, preventDefault: true },\n { key: \"Mod-End\", run: cursorDocEnd, shift: selectDocEnd },\n { key: \"Enter\", run: insertNewlineAndIndent },\n { key: \"Mod-a\", run: selectAll },\n { key: \"Backspace\", run: deleteCharBackward, shift: deleteCharBackward },\n { key: \"Delete\", run: deleteCharForward },\n { key: \"Mod-Backspace\", mac: \"Alt-Backspace\", run: deleteGroupBackward },\n { key: \"Mod-Delete\", mac: \"Alt-Delete\", run: deleteGroupForward },\n { mac: \"Mod-Backspace\", run: deleteLineBoundaryBackward },\n { mac: \"Mod-Delete\", run: deleteLineBoundaryForward }\n].concat(/*@__PURE__*/emacsStyleKeymap.map(b => ({ mac: b.key, run: b.run, shift: b.shift })));\n/**\nThe default keymap. Includes all bindings from\n[`standardKeymap`](https://codemirror.net/6/docs/ref/#commands.standardKeymap) plus the following:\n\n- Alt-ArrowLeft (Ctrl-ArrowLeft on macOS): [`cursorSyntaxLeft`](https://codemirror.net/6/docs/ref/#commands.cursorSyntaxLeft) ([`selectSyntaxLeft`](https://codemirror.net/6/docs/ref/#commands.selectSyntaxLeft) with Shift)\n- Alt-ArrowRight (Ctrl-ArrowRight on macOS): [`cursorSyntaxRight`](https://codemirror.net/6/docs/ref/#commands.cursorSyntaxRight) ([`selectSyntaxRight`](https://codemirror.net/6/docs/ref/#commands.selectSyntaxRight) with Shift)\n- Alt-ArrowUp: [`moveLineUp`](https://codemirror.net/6/docs/ref/#commands.moveLineUp)\n- Alt-ArrowDown: [`moveLineDown`](https://codemirror.net/6/docs/ref/#commands.moveLineDown)\n- Shift-Alt-ArrowUp: [`copyLineUp`](https://codemirror.net/6/docs/ref/#commands.copyLineUp)\n- Shift-Alt-ArrowDown: [`copyLineDown`](https://codemirror.net/6/docs/ref/#commands.copyLineDown)\n- Escape: [`simplifySelection`](https://codemirror.net/6/docs/ref/#commands.simplifySelection)\n- Ctrl-Enter (Cmd-Enter on macOS): [`insertBlankLine`](https://codemirror.net/6/docs/ref/#commands.insertBlankLine)\n- Alt-l (Ctrl-l on macOS): [`selectLine`](https://codemirror.net/6/docs/ref/#commands.selectLine)\n- Ctrl-i (Cmd-i on macOS): [`selectParentSyntax`](https://codemirror.net/6/docs/ref/#commands.selectParentSyntax)\n- Ctrl-[ (Cmd-[ on macOS): [`indentLess`](https://codemirror.net/6/docs/ref/#commands.indentLess)\n- Ctrl-] (Cmd-] on macOS): [`indentMore`](https://codemirror.net/6/docs/ref/#commands.indentMore)\n- Ctrl-Alt-\\\\ (Cmd-Alt-\\\\ on macOS): [`indentSelection`](https://codemirror.net/6/docs/ref/#commands.indentSelection)\n- Shift-Ctrl-k (Shift-Cmd-k on macOS): [`deleteLine`](https://codemirror.net/6/docs/ref/#commands.deleteLine)\n- Shift-Ctrl-\\\\ (Shift-Cmd-\\\\ on macOS): [`cursorMatchingBracket`](https://codemirror.net/6/docs/ref/#commands.cursorMatchingBracket)\n- Ctrl-/ (Cmd-/ on macOS): [`toggleComment`](https://codemirror.net/6/docs/ref/#commands.toggleComment).\n- Shift-Alt-a: [`toggleBlockComment`](https://codemirror.net/6/docs/ref/#commands.toggleBlockComment).\n*/\nconst defaultKeymap = /*@__PURE__*/[\n { key: \"Alt-ArrowLeft\", mac: \"Ctrl-ArrowLeft\", run: cursorSyntaxLeft, shift: selectSyntaxLeft },\n { key: \"Alt-ArrowRight\", mac: \"Ctrl-ArrowRight\", run: cursorSyntaxRight, shift: selectSyntaxRight },\n { key: \"Alt-ArrowUp\", run: moveLineUp },\n { key: \"Shift-Alt-ArrowUp\", run: copyLineUp },\n { key: \"Alt-ArrowDown\", run: moveLineDown },\n { key: \"Shift-Alt-ArrowDown\", run: copyLineDown },\n { key: \"Escape\", run: simplifySelection },\n { key: \"Mod-Enter\", run: insertBlankLine },\n { key: \"Alt-l\", mac: \"Ctrl-l\", run: selectLine },\n { key: \"Mod-i\", run: selectParentSyntax, preventDefault: true },\n { key: \"Mod-[\", run: indentLess },\n { key: \"Mod-]\", run: indentMore },\n { key: \"Mod-Alt-\\\\\", run: indentSelection },\n { key: \"Shift-Mod-k\", run: deleteLine },\n { key: \"Shift-Mod-\\\\\", run: cursorMatchingBracket },\n { key: \"Mod-/\", run: toggleComment },\n { key: \"Alt-A\", run: toggleBlockComment }\n].concat(standardKeymap);\n/**\nA binding that binds Tab to [`indentMore`](https://codemirror.net/6/docs/ref/#commands.indentMore) and\nShift-Tab to [`indentLess`](https://codemirror.net/6/docs/ref/#commands.indentLess).\nPlease see the [Tab example](../../examples/tab/) before using\nthis.\n*/\nconst indentWithTab = { key: \"Tab\", run: indentMore, shift: indentLess };\n\nexport { blockComment, blockUncomment, copyLineDown, copyLineUp, cursorCharBackward, cursorCharForward, cursorCharLeft, cursorCharRight, cursorDocEnd, cursorDocStart, cursorGroupBackward, cursorGroupForward, cursorGroupLeft, cursorGroupRight, cursorLineBoundaryBackward, cursorLineBoundaryForward, cursorLineBoundaryLeft, cursorLineBoundaryRight, cursorLineDown, cursorLineEnd, cursorLineStart, cursorLineUp, cursorMatchingBracket, cursorPageDown, cursorPageUp, cursorSubwordBackward, cursorSubwordForward, cursorSyntaxLeft, cursorSyntaxRight, defaultKeymap, deleteCharBackward, deleteCharForward, deleteGroupBackward, deleteGroupForward, deleteLine, deleteLineBoundaryBackward, deleteLineBoundaryForward, deleteToLineEnd, deleteToLineStart, deleteTrailingWhitespace, emacsStyleKeymap, history, historyField, historyKeymap, indentLess, indentMore, indentSelection, indentWithTab, insertBlankLine, insertNewline, insertNewlineAndIndent, insertTab, invertedEffects, isolateHistory, lineComment, lineUncomment, moveLineDown, moveLineUp, redo, redoDepth, redoSelection, selectAll, selectCharBackward, selectCharForward, selectCharLeft, selectCharRight, selectDocEnd, selectDocStart, selectGroupBackward, selectGroupForward, selectGroupLeft, selectGroupRight, selectLine, selectLineBoundaryBackward, selectLineBoundaryForward, selectLineBoundaryLeft, selectLineBoundaryRight, selectLineDown, selectLineEnd, selectLineStart, selectLineUp, selectMatchingBracket, selectPageDown, selectPageUp, selectParentSyntax, selectSubwordBackward, selectSubwordForward, selectSyntaxLeft, selectSyntaxRight, simplifySelection, splitLine, standardKeymap, toggleBlockComment, toggleBlockCommentByLine, toggleComment, toggleLineComment, transposeChars, undo, undoDepth, undoSelection };\n","/*\n * Copyright (c) Jupyter Development Team.\n * Distributed under the terms of the Modified BSD License.\n */\nimport { indentMore, insertTab } from '@codemirror/commands';\n/**\n * CodeMirror commands namespace\n */\nexport var StateCommands;\n(function (StateCommands) {\n /**\n * Indent or insert a tab as appropriate.\n */\n function indentMoreOrInsertTab(target) {\n const arg = { state: target.state, dispatch: target.dispatch };\n const from = target.state.selection.main.from;\n const to = target.state.selection.main.to;\n if (from != to) {\n return indentMore(arg);\n }\n const line = target.state.doc.lineAt(from);\n const before = target.state.doc.slice(line.from, from).toString();\n if (/^\\s*$/.test(before)) {\n return indentMore(arg);\n }\n else {\n return insertTab(arg);\n }\n }\n StateCommands.indentMoreOrInsertTab = indentMoreOrInsertTab;\n})(StateCommands || (StateCommands = {}));\n//# sourceMappingURL=commands.js.map","/*\n * Copyright (c) Jupyter Development Team.\n * Distributed under the terms of the Modified BSD License.\n */\nimport { combineConfig, Facet } from '@codemirror/state';\nimport { EditorView } from '@codemirror/view';\n/**\n * Custom theme configuration\n *\n * The first non-null value takes precedence\n */\nconst customThemeConfig = Facet.define({\n combine(configs) {\n return combineConfig(configs, {\n fontFamily: null,\n fontSize: null,\n lineHeight: null\n }, {\n fontFamily: (a, b) => a !== null && a !== void 0 ? a : b,\n fontSize: (a, b) => a !== null && a !== void 0 ? a : b,\n lineHeight: (a, b) => a !== null && a !== void 0 ? a : b\n });\n }\n});\nfunction setEditorStyle(view) {\n const { fontFamily, fontSize, lineHeight } = view.state.facet(customThemeConfig);\n let style = '';\n if (fontSize) {\n style += `font-size: ${fontSize}px !important;`;\n }\n if (fontFamily) {\n style += `font-family: ${fontFamily} !important;`;\n }\n if (lineHeight) {\n style += `line-height: ${lineHeight.toString()} !important`;\n }\n return { style: style };\n}\n/**\n * Get the extension to customize an editor theme.\n *\n * @param config Theme customization\n * @returns Editor extension\n */\nexport function customTheme(config) {\n return [\n customThemeConfig.of(config),\n EditorView.editorAttributes.of(setEditorStyle)\n ];\n}\n//# sourceMappingURL=customStyle.js.map","// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\nimport { parseMixed } from '@lezer/common';\nimport { tags } from '@lezer/highlight';\n// Mathematical expression delimiters\nconst INLINE_MATH_DOLLAR = 'InlineMathDollar';\nconst INLINE_MATH_BRACKET = 'InlineMathBracket';\nconst BLOCK_MATH_DOLLAR = 'BlockMathDollar';\nconst BLOCK_MATH_BRACKET = 'BlockMathBracket';\n/**\n * Lengh of the delimiter for a math expression\n */\nconst DELIMITER_LENGTH = {\n [INLINE_MATH_DOLLAR]: 1,\n [INLINE_MATH_BRACKET]: 3,\n [BLOCK_MATH_DOLLAR]: 2,\n [BLOCK_MATH_BRACKET]: 3\n};\n/**\n * Delimiters for math expressions\n */\n// Delimiters must be defined as constant because they are used in object match tests\nconst DELIMITERS = Object.keys(DELIMITER_LENGTH).reduce((agg, name) => {\n agg[name] = { mark: `${name}Mark`, resolve: name };\n return agg;\n}, {});\n/**\n * Define an IPython mathematical expression parser for Markdown.\n *\n * @param latexParser CodeMirror {@link Parser} for LaTeX mathematical expression\n * @returns Markdown extension\n */\nexport function parseMathIPython(latexParser) {\n const defineNodes = new Array();\n Object.keys(DELIMITER_LENGTH).forEach(name => {\n defineNodes.push({\n name,\n style: tags.emphasis\n }, { name: `${name}Mark`, style: tags.processingInstruction });\n });\n return {\n defineNodes,\n parseInline: [\n {\n name: BLOCK_MATH_DOLLAR,\n parse(cx, next, pos) {\n if (next != 36 /* '$' */ || cx.char(pos + 1) != 36) {\n return -1;\n }\n return cx.addDelimiter(DELIMITERS[BLOCK_MATH_DOLLAR], pos, pos + DELIMITER_LENGTH[BLOCK_MATH_DOLLAR], true, true);\n }\n },\n {\n name: INLINE_MATH_DOLLAR,\n parse(cx, next, pos) {\n if (next != 36 /* '$' */ || cx.char(pos + 1) == 36) {\n return -1;\n }\n return cx.addDelimiter(DELIMITERS[INLINE_MATH_DOLLAR], pos, pos + DELIMITER_LENGTH[INLINE_MATH_DOLLAR], true, true);\n }\n },\n // Inline expression wrapped in \\\\( ... \\\\)\n {\n name: INLINE_MATH_BRACKET,\n before: 'Escape',\n parse(cx, next, pos) {\n if (next != 92 /* '\\' */ ||\n cx.char(pos + 1) != 92 ||\n ![40 /* '(' */, 41 /* ')' */].includes(cx.char(pos + 2))) {\n return -1;\n }\n return cx.addDelimiter(DELIMITERS[INLINE_MATH_BRACKET], pos, pos + DELIMITER_LENGTH[INLINE_MATH_BRACKET], cx.char(pos + 2) == 40, cx.char(pos + 2) == 41);\n }\n },\n // Block expression wrapped in \\\\[ ... \\\\]\n {\n name: BLOCK_MATH_BRACKET,\n before: 'Escape',\n parse(cx, next, pos) {\n if (next != 92 /* '\\' */ ||\n cx.char(pos + 1) != 92 ||\n ![91 /* '[' */, 93 /* ']' */].includes(cx.char(pos + 2))) {\n return -1;\n }\n return cx.addDelimiter(DELIMITERS[BLOCK_MATH_BRACKET], pos, pos + DELIMITER_LENGTH[BLOCK_MATH_BRACKET], cx.char(pos + 2) == 91, cx.char(pos + 2) == 93);\n }\n }\n ],\n wrap: latexParser\n ? parseMixed((node, input) => {\n // Test if the node type is one of the math expression\n const delimiterLength = DELIMITER_LENGTH[node.type.name];\n if (delimiterLength) {\n return {\n parser: latexParser,\n // Remove delimiter from LaTeX parser otherwise it won't be highlighted\n overlay: [\n {\n from: node.from + delimiterLength,\n to: node.to - delimiterLength\n }\n ]\n };\n }\n return null;\n })\n : undefined\n };\n}\n//# sourceMappingURL=ipython-md.js.map","/*\n * Copyright (c) Jupyter Development Team.\n * Distributed under the terms of the Modified BSD License.\n */\n// Inspired by https://discuss.codemirror.net/t/how-to-implement-ruler/4616/\nimport { Facet } from '@codemirror/state';\nimport { EditorView, ViewPlugin } from '@codemirror/view';\nimport { JSONExt } from '@lumino/coreutils';\nconst RULERS_CLASSNAME = 'cm-rulers';\n/**\n * Rulers style\n */\nconst baseTheme = EditorView.baseTheme({\n [`.${RULERS_CLASSNAME}`]: { borderRight: '1px dotted gray', opacity: 0.7 }\n});\n/**\n * Rulers facet\n */\nconst rulerConfig = Facet.define({\n // Merge all unique values\n combine(value) {\n const final = value.reduce((agg, arr) => agg.concat(\n // Check value is not in aggregate nor multiple time in the array.\n arr.filter((v, idx) => !agg.includes(v) && idx == arr.lastIndexOf(v))), []);\n return final;\n }\n});\n/**\n * View plugin displaying the rulers\n */\nconst plugin = ViewPlugin.fromClass(class {\n constructor(view) {\n var _a, _b;\n this.rulersContainer = view.dom.appendChild(document.createElement('div'));\n this.rulersContainer.style.cssText = `\n position: absolute;\n left: 0;\n top: 0;\n width: 100%;\n height: 100%;\n pointer-events: none;\n overflow: hidden;\n `;\n const defaultCharacterWidth = view.defaultCharacterWidth;\n const widths = view.state.facet(rulerConfig);\n const guttersWidths = (_b = (_a = view.scrollDOM.querySelector('.cm-gutters')) === null || _a === void 0 ? void 0 : _a.clientWidth) !== null && _b !== void 0 ? _b : 0;\n this.rulers = widths.map(width => {\n const ruler = this.rulersContainer.appendChild(document.createElement('div'));\n ruler.classList.add(RULERS_CLASSNAME);\n ruler.style.cssText = `\n position: absolute;\n left: ${guttersWidths + width * defaultCharacterWidth}px;\n height: 100%;\n `;\n // FIXME: This should be equal to the amount of padding on a line.\n // This value should be extracted from CodeMirror rather than hardcoded.\n ruler.style.width = '6px';\n return ruler;\n });\n }\n update(update) {\n var _a, _b;\n const widths = update.view.state.facet(rulerConfig);\n if (update.viewportChanged ||\n update.geometryChanged ||\n !JSONExt.deepEqual(widths, update.startState.facet(rulerConfig))) {\n const guttersWidth = (_b = (_a = update.view.scrollDOM.querySelector('.cm-gutters')) === null || _a === void 0 ? void 0 : _a.clientWidth) !== null && _b !== void 0 ? _b : 0;\n const defaultCharacterWidth = update.view.defaultCharacterWidth;\n this.rulers.forEach((ruler, rulerIdx) => {\n ruler.style.left = `${guttersWidth + widths[rulerIdx] * defaultCharacterWidth}px`;\n });\n }\n }\n destroy() {\n this.rulers.forEach(ruler => {\n ruler.remove();\n });\n this.rulersContainer.remove();\n }\n});\n/**\n * Extension for CodeMirror 6 displaying rulers.\n *\n * @param value Rulers position\n * @returns CodeMirror 6 extension\n */\nexport function rulers(value) {\n return [baseTheme, rulerConfig.of(value), plugin];\n}\n//# sourceMappingURL=rulers.js.map","/*\n * Copyright (c) Jupyter Development Team.\n * Distributed under the terms of the Modified BSD License.\n *\n * Binding for yjs and codemirror\n *\n * It is a simplification of https://github.com/yjs/y-codemirror.next\n * licensed under MIT License by Kevin Jahns\n */\nimport { Annotation, EditorSelection, Facet } from '@codemirror/state';\nimport { ViewPlugin } from '@codemirror/view';\nimport { createAbsolutePositionFromRelativePosition, createRelativePositionFromJSON, createRelativePositionFromTypeIndex, relativePositionToJSON } from 'yjs';\n/**\n * Defines a range on text using relative positions that can be transformed back to\n * absolute positions. (https://docs.yjs.dev/api/relative-positions)\n */\nexport class YRange {\n /**\n * @param yanchor\n * @param yhead\n */\n constructor(yanchor, yhead) {\n this.yanchor = yanchor;\n this.yhead = yhead;\n }\n /**\n * Convert the position to JSON\n */\n toJSON() {\n return {\n yanchor: relativePositionToJSON(this.yanchor),\n yhead: relativePositionToJSON(this.yhead)\n };\n }\n /**\n * Convert a JSON range to a YRange\n * @param json Range to convert\n * @return The range as YRange\n */\n static fromJSON(json) {\n return new YRange(createRelativePositionFromJSON(json.yanchor), createRelativePositionFromJSON(json.yhead));\n }\n}\n/**\n * Yjs binding configuration\n */\nexport class YSyncConfig {\n /**\n * Create a new binding configuration\n *\n * @param ytext Yjs text to synchronize\n */\n constructor(ytext) {\n this.ytext = ytext;\n }\n /**\n * Helper function to transform an absolute index position to a Yjs-based relative position\n * (https://docs.yjs.dev/api/relative-positions).\n *\n * A relative position can be transformed back to an absolute position even after the document has changed. The position is\n * automatically adapted. This does not require any position transformations. Relative positions are computed based on\n * the internal Yjs document model. Peers that share content through Yjs are guaranteed that their positions will always\n * synced up when using relative positions.\n *\n * ```js\n * import { ySyncFacet } from 'y-codemirror'\n *\n * ..\n * const ysync = view.state.facet(ySyncFacet)\n * // transform an absolute index position to a ypos\n * const ypos = ysync.getYPos(3)\n * // transform the ypos back to an absolute position\n * ysync.fromYPos(ypos) // => 3\n * ```\n *\n * It cannot be guaranteed that absolute index positions can be synced up between peers.\n * This might lead to undesired behavior when implementing features that require that all peers see the\n * same marked range (e.g. a comment plugin).\n *\n * @param pos\n * @param assoc\n */\n toYPos(pos, assoc = 0) {\n return createRelativePositionFromTypeIndex(this.ytext, pos, assoc);\n }\n /**\n * @param rpos\n */\n fromYPos(rpos) {\n const pos = createAbsolutePositionFromRelativePosition(createRelativePositionFromJSON(rpos), this.ytext.doc);\n if (pos == null || pos.type !== this.ytext) {\n throw new Error('[y-codemirror] The position you want to retrieve was created by a different document');\n }\n return {\n pos: pos.index,\n assoc: pos.assoc\n };\n }\n /**\n * @param range\n * @return\n */\n toYRange(range) {\n const assoc = range.assoc;\n const yanchor = this.toYPos(range.anchor, assoc);\n const yhead = this.toYPos(range.head, assoc);\n return new YRange(yanchor, yhead);\n }\n /**\n * @param yrange\n */\n fromYRange(yrange) {\n const anchor = this.fromYPos(yrange.yanchor);\n const head = this.fromYPos(yrange.yhead);\n if (anchor.pos === head.pos) {\n return EditorSelection.cursor(head.pos, head.assoc);\n }\n return EditorSelection.range(anchor.pos, head.pos);\n }\n}\n/**\n * Yjs binding facet\n */\nexport const ySyncFacet = Facet.define({\n combine(inputs) {\n return inputs[inputs.length - 1];\n }\n});\n/**\n * Yjs binding annotation\n *\n * It is used to track the origin of the document changes\n */\nexport const ySyncAnnotation = Annotation.define();\n/**\n * Yjs binding view plugin to synchronize the\n * editor state with the Yjs document.\n */\nexport const ySync = ViewPlugin.fromClass(class {\n constructor(view) {\n this.conf = view.state.facet(ySyncFacet);\n this._observer = (event, tr) => {\n var _a;\n if (tr.origin !== this.conf) {\n const delta = event.delta;\n const changes = [];\n let pos = 0;\n for (let i = 0; i < delta.length; i++) {\n const d = delta[i];\n if (d.insert != null) {\n changes.push({ from: pos, to: pos, insert: d.insert });\n }\n else if (d.delete != null) {\n changes.push({ from: pos, to: pos + d.delete, insert: '' });\n pos += d.delete;\n }\n else {\n pos += (_a = d.retain) !== null && _a !== void 0 ? _a : 0;\n }\n }\n view.dispatch({\n changes,\n // Specified the changes origin to not loop when synchronizing\n annotations: [ySyncAnnotation.of(this.conf)]\n });\n }\n };\n this._ytext = this.conf.ytext;\n this._ytext.observe(this._observer);\n }\n update(update) {\n if (!update.docChanged ||\n (update.transactions.length > 0 &&\n update.transactions[0].annotation(ySyncAnnotation) === this.conf)) {\n return;\n }\n const ytext = this.conf.ytext;\n ytext.doc.transact(() => {\n /**\n * This variable adjusts the fromA position to the current position in the Y.Text type.\n */\n let adj = 0;\n update.changes.iterChanges((fromA, toA, fromB, toB, insert) => {\n const insertText = insert.sliceString(0, insert.length, '\\n');\n if (fromA !== toA) {\n ytext.delete(fromA + adj, toA - fromA);\n }\n if (insertText.length > 0) {\n ytext.insert(fromA + adj, insertText);\n }\n adj += insertText.length - (toA - fromA);\n });\n // Set the configuration as origin to not loop when synchronizing\n }, this.conf);\n }\n destroy() {\n this._ytext.unobserve(this._observer);\n }\n});\n/**\n * Extension for CodeMirror 6 binding the Yjs text (source of truth)\n * and the editor state.\n *\n * @param ytext Yjs text to bind\n * @param undoManager Yjs text undo manager\n * @returns CodeMirror 6 extension\n */\nexport function ybinding({ ytext, undoManager }) {\n const ySyncConfig = new YSyncConfig(ytext);\n // We don't need the undo manager extension as in y-codemirror.next\n // because we deal with undo/redo with our own keyboard shortcut mechanism.\n return [\n ySyncFacet.of(ySyncConfig),\n ySync,\n // We need to add a new origin to the undo manager to ensure text updates\n // are tracked.\n undoManager\n ? ViewPlugin.define(() => {\n undoManager.addTrackedOrigin(ySyncConfig);\n return {\n destroy: () => {\n undoManager.removeTrackedOrigin(ySyncConfig);\n }\n };\n })\n : []\n ];\n}\n//# sourceMappingURL=ybinding.js.map","// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\nimport { closeBrackets, closeBracketsKeymap } from '@codemirror/autocomplete';\nimport { defaultKeymap, indentLess } from '@codemirror/commands';\nimport { bracketMatching, foldGutter, indentOnInput, indentUnit } from '@codemirror/language';\nimport { Compartment, EditorState, Prec, StateEffect } from '@codemirror/state';\nimport { crosshairCursor, drawSelection, EditorView, highlightActiveLine, highlightTrailingWhitespace, highlightWhitespace, keymap, lineNumbers, rectangularSelection, scrollPastEnd, tooltips } from '@codemirror/view';\nimport { nullTranslator } from '@jupyterlab/translation';\nimport { JSONExt } from '@lumino/coreutils';\nimport { Signal } from '@lumino/signaling';\nimport { StateCommands } from './commands';\nimport { customTheme, rulers } from './extensions';\n/**\n * The class name added to read only editor widgets.\n */\nconst READ_ONLY_CLASS = 'jp-mod-readOnly';\n/**\n * Editor configuration handler\n *\n * It stores the editor configuration and the editor extensions.\n * It also allows to inject new extensions into an editor.\n */\nexport class ExtensionsHandler {\n constructor({ baseConfiguration, config, defaultExtensions } = {}) {\n this._configChanged = new Signal(this);\n this._disposed = new Signal(this);\n this._isDisposed = false;\n this._immutables = new Set();\n this._baseConfig = baseConfiguration !== null && baseConfiguration !== void 0 ? baseConfiguration : {};\n this._config = config !== null && config !== void 0 ? config : {};\n this._configurableBuilderMap = new Map(defaultExtensions);\n const configurables = Object.keys(this._config).concat(Object.keys(this._baseConfig));\n this._immutables = new Set([...this._configurableBuilderMap.keys()].filter(key => !configurables.includes(key)));\n }\n /**\n * Signal triggered when the editor configuration changes.\n * It provides the mapping of the new configuration (only those that changed).\n *\n * It should result in a call to `IExtensionsHandler.reconfigureExtensions`.\n */\n get configChanged() {\n return this._configChanged;\n }\n /**\n * A signal emitted when the object is disposed.\n */\n get disposed() {\n return this._disposed;\n }\n /**\n * Tests whether the object is disposed.\n */\n get isDisposed() {\n return this._isDisposed;\n }\n /**\n * Dispose of the resources held by the object.\n */\n dispose() {\n if (this.isDisposed) {\n return;\n }\n this._isDisposed = true;\n this._disposed.emit();\n Signal.clearData(this);\n }\n /**\n * Get a config option for the editor.\n */\n getOption(option) {\n var _a;\n return (_a = this._config[option]) !== null && _a !== void 0 ? _a : this._baseConfig[option];\n }\n /**\n * Whether the option exists or not.\n */\n hasOption(option) {\n return (Object.keys(this._config).includes(option) ||\n Object.keys(this._baseConfig).includes(option));\n }\n /**\n * Set a config option for the editor.\n *\n * You will need to reconfigure the editor extensions by listening\n * to `IExtensionsHandler.configChanged`.\n */\n setOption(option, value) {\n // Don't bother setting the option if it is already the same.\n if (this._config[option] !== value) {\n this._config[option] = value;\n this._configChanged.emit({ [option]: value });\n }\n }\n /**\n * Set a base config option for the editor.\n *\n * You will need to reconfigure the editor extensions by listening\n * to `IExtensionsHandler.configChanged`.\n */\n setBaseOptions(options) {\n const changed = this._getChangedOptions(options, this._baseConfig);\n if (changed.length > 0) {\n this._baseConfig = options;\n const customizedKeys = Object.keys(this._config);\n const notOverridden = changed.filter(k => !customizedKeys.includes(k));\n if (notOverridden.length > 0) {\n this._configChanged.emit(notOverridden.reduce((agg, key) => {\n agg[key] = this._baseConfig[key];\n return agg;\n }, {}));\n }\n }\n }\n /**\n * Set config options for the editor.\n *\n * You will need to reconfigure the editor extensions by listening\n * to `EditorHandler.configChanged`.\n *\n * This method is preferred when setting several options. The\n * options are set within an operation, which only performs\n * the costly update at the end, and not after every option\n * is set.\n */\n setOptions(options) {\n const changed = this._getChangedOptions(options, this._config);\n if (changed.length > 0) {\n this._config = { ...options };\n this._configChanged.emit(changed.reduce((agg, key) => {\n var _a;\n agg[key] = (_a = this._config[key]) !== null && _a !== void 0 ? _a : this._baseConfig[key];\n return agg;\n }, {}));\n }\n }\n /**\n * Reconfigures the extension mapped with key with the provided value.\n *\n * @param view Editor view\n * @param key Parameter unique key\n * @param value Parameter value to be applied\n */\n reconfigureExtension(view, key, value) {\n const effect = this.getEffect(view.state, key, value);\n if (effect) {\n view.dispatch({\n effects: [effect]\n });\n }\n }\n /**\n * Reconfigures all the extensions mapped with the options from the\n * provided partial configuration.\n *\n * @param view Editor view\n * @param configuration Editor configuration\n */\n reconfigureExtensions(view, configuration) {\n const effects = Object.keys(configuration)\n .filter(key => this.has(key))\n .map(key => this.getEffect(view.state, key, configuration[key]));\n view.dispatch({\n effects: effects.filter(effect => effect !== null)\n });\n }\n /**\n * Appends extensions to the top-level configuration of the\n * editor.\n *\n * Injected extension cannot be removed.\n *\n * ### Notes\n * You should prefer registering a IEditorExtensionFactory instead\n * of this feature.\n *\n * @alpha\n * @param view Editor view\n * @param extension Editor extension to inject\n */\n injectExtension(view, extension) {\n view.dispatch({\n effects: StateEffect.appendConfig.of(extension)\n });\n }\n /**\n * Returns the list of initial extensions of an editor\n * based on the configuration.\n *\n * @returns The initial editor extensions\n */\n getInitialExtensions() {\n const configuration = { ...this._baseConfig, ...this._config };\n const extensions = [...this._immutables]\n .map(key => { var _a; return (_a = this.get(key)) === null || _a === void 0 ? void 0 : _a.instance(undefined); })\n .filter(ext => ext);\n for (const k of Object.keys(configuration)) {\n const builder = this.get(k);\n if (builder) {\n const value = configuration[k];\n extensions.push(builder.instance(value));\n }\n }\n return extensions;\n }\n /**\n * Get a extension builder\n * @param key Extension unique identifier\n * @returns The extension builder\n */\n get(key) {\n return this._configurableBuilderMap.get(key);\n }\n /**\n * Whether the editor has an extension for the identifier.\n *\n * @param key Extension unique identifier\n * @returns Extension existence\n */\n has(key) {\n return this._configurableBuilderMap.has(key);\n }\n getEffect(state, key, value) {\n var _a;\n const builder = this.get(key);\n return (_a = builder === null || builder === void 0 ? void 0 : builder.reconfigure(value)) !== null && _a !== void 0 ? _a : null;\n }\n _getChangedOptions(newConfig, oldConfig) {\n const changed = new Array();\n const newKeys = new Array();\n for (const [key, value] of Object.entries(newConfig)) {\n newKeys.push(key);\n if (oldConfig[key] !== value) {\n changed.push(key);\n }\n }\n // Add removed old keys\n changed.push(...Object.keys(oldConfig).filter(k => !newKeys.includes(k)));\n return changed;\n }\n}\n/**\n * CodeMirror extensions registry\n */\nexport class EditorExtensionRegistry {\n constructor() {\n this.configurationBuilder = new Map();\n this.configurationSchema = {};\n this.defaultOptions = {};\n this.handlers = new Set();\n this.immutableExtensions = new Set();\n this._baseConfiguration = {};\n }\n /**\n * Base editor configuration\n *\n * This is the default configuration optionally modified by the user;\n * e.g. through user settings.\n */\n get baseConfiguration() {\n return { ...this.defaultOptions, ...this._baseConfiguration };\n }\n set baseConfiguration(v) {\n if (!JSONExt.deepEqual(v, this._baseConfiguration)) {\n this._baseConfiguration = v;\n for (const handler of this.handlers) {\n handler.setBaseOptions(this.baseConfiguration);\n }\n }\n }\n /**\n * Default editor configuration\n *\n * This is the default configuration as defined when extensions\n * are registered.\n */\n get defaultConfiguration() {\n // Only options with schema should be JSON serializable\n // So we cannot use `JSONExt.deepCopy` on the default options.\n return Object.freeze({ ...this.defaultOptions });\n }\n /**\n * Editor configuration JSON schema\n */\n get settingsSchema() {\n return Object.freeze(JSONExt.deepCopy(this.configurationSchema));\n }\n /**\n * Add a default editor extension\n *\n * @template T Extension parameter type\n * @param factory Extension factory\n */\n addExtension(factory) {\n var _a;\n if (this.configurationBuilder.has(factory.name)) {\n throw new Error(`Extension named ${factory.name} is already registered.`);\n }\n this.configurationBuilder.set(factory.name, factory);\n if (typeof factory.default != 'undefined') {\n this.defaultOptions[factory.name] = factory.default;\n }\n if (factory.schema) {\n this.configurationSchema[factory.name] = {\n default: (_a = factory.default) !== null && _a !== void 0 ? _a : null,\n ...factory.schema\n };\n this.defaultOptions[factory.name] =\n this.configurationSchema[factory.name].default;\n }\n }\n /**\n * Create a new extensions handler for an editor\n *\n * @param options Extensions options and initial editor configuration\n */\n createNew(options) {\n const configuration = new Array();\n for (const [key, builder] of this.configurationBuilder.entries()) {\n const extension = builder.factory(options);\n if (extension) {\n configuration.push([key, extension]);\n }\n }\n const handler = new ExtensionsHandler({\n baseConfiguration: this.baseConfiguration,\n config: options.config,\n defaultExtensions: configuration\n });\n this.handlers.add(handler);\n handler.disposed.connect(() => {\n this.handlers.delete(handler);\n });\n return handler;\n }\n}\n/**\n * Editor extension registry namespace\n */\n(function (EditorExtensionRegistry) {\n /**\n * Dynamically configurable editor extension.\n */\n class ConfigurableExtension {\n /**\n * Create a dynamic editor extension.\n *\n * @param builder Extension builder\n */\n constructor(builder) {\n this._compartment = new Compartment();\n this._builder = builder;\n }\n /**\n * Create an editor extension for the provided value.\n *\n * @param value Editor extension parameter value\n * @returns The editor extension\n */\n instance(value) {\n return this._compartment.of(this._builder(value));\n }\n /**\n * Reconfigure an editor extension.\n *\n * @param value Editor extension value\n * @returns Editor state effect\n */\n reconfigure(value) {\n return this._compartment.reconfigure(this._builder(value));\n }\n }\n /**\n * Immutable editor extension class\n */\n class ImmutableExtension {\n /**\n * Create an immutable editor extension.\n *\n * @param extension Extension\n */\n constructor(extension) {\n this._extension = extension;\n }\n /**\n * Create an editor extension.\n *\n * @returns The editor extension\n */\n instance() {\n return this._extension;\n }\n /**\n * Reconfigure an editor extension.\n *\n * This is a no-op\n */\n reconfigure() {\n // This is a no-op\n return null;\n }\n }\n /**\n * Creates a dynamically configurable editor extension.\n *\n * @param builder Extension builder\n * @return The extension\n */\n function createConfigurableExtension(builder) {\n return new ConfigurableExtension(builder);\n }\n EditorExtensionRegistry.createConfigurableExtension = createConfigurableExtension;\n /**\n * Creates a configurable extension returning\n * one of two extensions depending on a boolean value.\n *\n * @param truthy Extension to apply when the parameter is true\n * @param falsy Extension to apply when the parameter is false\n * @return The extension\n */\n function createConditionalExtension(truthy, falsy = []) {\n return new ConfigurableExtension(value => value ? truthy : falsy);\n }\n EditorExtensionRegistry.createConditionalExtension = createConditionalExtension;\n /**\n * Creates an immutable extension.\n *\n * @param extension Immutable extension\n * @return The extension\n */\n function createImmutableExtension(extension) {\n return new ImmutableExtension(extension);\n }\n EditorExtensionRegistry.createImmutableExtension = createImmutableExtension;\n /**\n * Get the default editor extensions.\n *\n * @returns CodeMirror 6 extension factories\n */\n function getDefaultExtensions(options = {}) {\n const { themes, translator } = options;\n const trans = (translator !== null && translator !== void 0 ? translator : nullTranslator).load('jupyterlab');\n const extensions = [\n Object.freeze({\n name: 'autoClosingBrackets',\n default: false,\n factory: () => createConditionalExtension(closeBrackets()),\n schema: {\n type: 'boolean',\n title: trans.__('Auto Closing Brackets')\n }\n }),\n Object.freeze({\n name: 'codeFolding',\n default: false,\n factory: () => createConditionalExtension(foldGutter()),\n schema: {\n type: 'boolean',\n title: trans.__('Code Folding')\n }\n }),\n Object.freeze({\n name: 'cursorBlinkRate',\n default: 1200,\n factory: () => createConfigurableExtension((value) => drawSelection({ cursorBlinkRate: value })),\n schema: {\n type: 'number',\n title: trans.__('Cursor blinking rate'),\n description: trans.__('Half-period in milliseconds used for cursor blinking. The default blink rate is 1200ms. By setting this to zero, blinking can be disabled.')\n }\n }),\n Object.freeze({\n name: 'highlightActiveLine',\n default: false,\n factory: () => createConditionalExtension(highlightActiveLine()),\n schema: {\n type: 'boolean',\n title: trans.__('Highlight the active line')\n }\n }),\n Object.freeze({\n name: 'highlightTrailingWhitespace',\n default: false,\n factory: () => createConditionalExtension(highlightTrailingWhitespace()),\n schema: {\n type: 'boolean',\n title: trans.__('Highlight trailing white spaces')\n }\n }),\n Object.freeze({\n name: 'highlightWhitespace',\n default: false,\n factory: () => createConditionalExtension(highlightWhitespace()),\n schema: {\n type: 'boolean',\n title: trans.__('Highlight white spaces')\n }\n }),\n Object.freeze({\n name: 'indentUnit',\n default: '4',\n factory: () => createConfigurableExtension((value) => value == 'Tab'\n ? indentUnit.of('\\t')\n : indentUnit.of(' '.repeat(parseInt(value, 10)))),\n schema: {\n type: 'string',\n title: trans.__('Indentation unit'),\n description: trans.__('The indentation is a `Tab` or the number of spaces. This defaults to 4 spaces.'),\n enum: ['Tab', '1', '2', '4', '8']\n }\n }),\n // Default keyboard shortcuts\n // TODO at some point we may want to get this configurable\n Object.freeze({\n name: 'keymap',\n default: [\n ...defaultKeymap,\n {\n key: 'Tab',\n run: StateCommands.indentMoreOrInsertTab,\n shift: indentLess\n }\n ],\n factory: () => createConfigurableExtension(value => keymap.of(value))\n }),\n Object.freeze({\n name: 'lineNumbers',\n default: true,\n factory: () => createConditionalExtension(lineNumbers()),\n schema: {\n type: 'boolean',\n title: trans.__('Line Numbers')\n }\n }),\n Object.freeze({\n name: 'lineWrap',\n factory: () => createConditionalExtension(EditorView.lineWrapping),\n default: true,\n schema: {\n type: 'boolean',\n title: trans.__('Line Wrap')\n }\n }),\n Object.freeze({\n name: 'matchBrackets',\n default: true,\n factory: () => createConditionalExtension([\n bracketMatching(),\n // closeBracketsKeymap must have higher precedence over defaultKeymap\n Prec.high(keymap.of(closeBracketsKeymap))\n ]),\n schema: {\n type: 'boolean',\n title: trans.__('Match Brackets')\n }\n }),\n Object.freeze({\n name: 'rectangularSelection',\n default: true,\n factory: () => createConditionalExtension([\n rectangularSelection(),\n crosshairCursor()\n ]),\n schema: {\n type: 'boolean',\n title: trans.__('Rectangular selection'),\n description: trans.__('Rectangular (block) selection can be created by dragging the mouse pointer while holding the left mouse button and the Alt key. When the Alt key is pressed, a crosshair cursor will appear, indicating that the rectangular selection mode is active.')\n }\n }),\n Object.freeze({\n name: 'readOnly',\n default: false,\n factory: () => createConfigurableExtension((value) => [\n EditorState.readOnly.of(value),\n value\n ? EditorView.editorAttributes.of({ class: READ_ONLY_CLASS })\n : []\n ])\n }),\n Object.freeze({\n name: 'rulers',\n default: [],\n factory: () => createConfigurableExtension((value) => value.length > 0 ? rulers(value) : []),\n schema: {\n type: 'array',\n title: trans.__('Rulers'),\n items: {\n type: 'number',\n minimum: 0\n }\n }\n }),\n Object.freeze({\n name: 'scrollPastEnd',\n default: false,\n factory: (options) => options.inline ? null : createConditionalExtension(scrollPastEnd())\n }),\n Object.freeze({\n name: 'smartIndent',\n default: true,\n factory: () => createConditionalExtension(indentOnInput()),\n schema: {\n type: 'boolean',\n title: trans.__('Smart Indentation')\n }\n }),\n Object.freeze({\n name: 'tabSize',\n default: 4,\n factory: () => createConfigurableExtension((value) => EditorState.tabSize.of(value)),\n schema: {\n type: 'number',\n title: trans.__('Tab size')\n }\n }),\n Object.freeze({\n name: 'tooltips',\n factory: () => \n // we need `absolute` due to use of `contain: layout` in lumino;\n // we attach to body to ensure cursor collaboration tooltip is\n // visible in first line of the editor.\n createImmutableExtension(tooltips({\n position: 'absolute',\n parent: document.body\n }))\n }),\n Object.freeze({\n name: 'allowMultipleSelections',\n default: true,\n factory: () => createConfigurableExtension((value) => EditorState.allowMultipleSelections.of(value)),\n schema: {\n type: 'boolean',\n title: trans.__('Multiple selections')\n }\n }),\n Object.freeze({\n name: 'customStyles',\n factory: () => createConfigurableExtension(config => customTheme(config)),\n default: {\n fontFamily: null,\n fontSize: null,\n lineHeight: null\n },\n schema: {\n title: trans.__('Custom editor styles'),\n type: 'object',\n properties: {\n fontFamily: {\n type: ['string', 'null'],\n title: trans.__('Font Family')\n },\n fontSize: {\n type: ['number', 'null'],\n minimum: 1,\n maximum: 100,\n title: trans.__('Font Size')\n },\n lineHeight: {\n type: ['number', 'null'],\n title: trans.__('Line Height')\n }\n },\n additionalProperties: false\n }\n })\n ];\n if (themes) {\n extensions.push(Object.freeze({\n name: 'theme',\n default: 'jupyter',\n factory: () => createConfigurableExtension(value => themes.getTheme(value)),\n schema: {\n type: 'string',\n title: trans.__('Theme'),\n description: trans.__('CodeMirror theme')\n }\n }));\n }\n if (translator) {\n extensions.push(Object.freeze({\n name: 'translation',\n // The list of internal strings is available at https://codemirror.net/examples/translate/\n default: {\n // @codemirror/view\n 'Control character': trans.__('Control character'),\n // @codemirror/commands\n 'Selection deleted': trans.__('Selection deleted'),\n // @codemirror/language\n 'Folded lines': trans.__('Folded lines'),\n 'Unfolded lines': trans.__('Unfolded lines'),\n to: trans.__('to'),\n 'folded code': trans.__('folded code'),\n unfold: trans.__('unfold'),\n 'Fold line': trans.__('Fold line'),\n 'Unfold line': trans.__('Unfold line'),\n // @codemirror/search\n 'Go to line': trans.__('Go to line'),\n go: trans.__('go'),\n Find: trans.__('Find'),\n Replace: trans.__('Replace'),\n next: trans.__('next'),\n previous: trans.__('previous'),\n all: trans.__('all'),\n 'match case': trans.__('match case'),\n replace: trans.__('replace'),\n 'replace all': trans.__('replace all'),\n close: trans.__('close'),\n 'current match': trans.__('current match'),\n 'replaced $ matches': trans.__('replaced $ matches'),\n 'replaced match on line $': trans.__('replaced match on line $'),\n 'on line': trans.__('on line'),\n // @codemirror/autocomplete\n Completions: trans.__('Completions'),\n // @codemirror/lint\n Diagnostics: trans.__('Diagnostics'),\n 'No diagnostics': trans.__('No diagnostics')\n },\n factory: () => createConfigurableExtension(value => EditorState.phrases.of(value))\n }));\n }\n return extensions;\n }\n EditorExtensionRegistry.getDefaultExtensions = getDefaultExtensions;\n})(EditorExtensionRegistry || (EditorExtensionRegistry = {}));\n//# sourceMappingURL=extension.js.map","// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/**\n * A namespace for `IEditorMimeTypeService`.\n */\nexport var IEditorMimeTypeService;\n(function (IEditorMimeTypeService) {\n /**\n * The default mime type.\n */\n IEditorMimeTypeService.defaultMimeType = 'text/plain';\n})(IEditorMimeTypeService || (IEditorMimeTypeService = {}));\n//# sourceMappingURL=mimetype.js.map","import { NodeProp } from '@lezer/common';\nimport { LRParser, LocalTokenGroup } from '@lezer/lr';\n\nclass Node {\n constructor(start) {\n this.start = start;\n }\n}\nclass GrammarDeclaration extends Node {\n constructor(start, rules, topRules, tokens, localTokens, context, externalTokens, externalSpecializers, externalPropSources, precedences, mainSkip, scopedSkip, dialects, externalProps, autoDelim) {\n super(start);\n this.rules = rules;\n this.topRules = topRules;\n this.tokens = tokens;\n this.localTokens = localTokens;\n this.context = context;\n this.externalTokens = externalTokens;\n this.externalSpecializers = externalSpecializers;\n this.externalPropSources = externalPropSources;\n this.precedences = precedences;\n this.mainSkip = mainSkip;\n this.scopedSkip = scopedSkip;\n this.dialects = dialects;\n this.externalProps = externalProps;\n this.autoDelim = autoDelim;\n }\n toString() { return Object.values(this.rules).join(\"\\n\"); }\n}\nclass RuleDeclaration extends Node {\n constructor(start, id, props, params, expr) {\n super(start);\n this.id = id;\n this.props = props;\n this.params = params;\n this.expr = expr;\n }\n toString() {\n return this.id.name + (this.params.length ? `<${this.params.join()}>` : \"\") + \" -> \" + this.expr;\n }\n}\nclass PrecDeclaration extends Node {\n constructor(start, items) {\n super(start);\n this.items = items;\n }\n}\nclass TokenPrecDeclaration extends Node {\n constructor(start, items) {\n super(start);\n this.items = items;\n }\n}\nclass TokenConflictDeclaration extends Node {\n constructor(start, a, b) {\n super(start);\n this.a = a;\n this.b = b;\n }\n}\nclass TokenDeclaration extends Node {\n constructor(start, precedences, conflicts, rules, literals) {\n super(start);\n this.precedences = precedences;\n this.conflicts = conflicts;\n this.rules = rules;\n this.literals = literals;\n }\n}\nclass LocalTokenDeclaration extends Node {\n constructor(start, precedences, rules, fallback) {\n super(start);\n this.precedences = precedences;\n this.rules = rules;\n this.fallback = fallback;\n }\n}\nclass LiteralDeclaration extends Node {\n constructor(start, literal, props) {\n super(start);\n this.literal = literal;\n this.props = props;\n }\n}\nclass ContextDeclaration extends Node {\n constructor(start, id, source) {\n super(start);\n this.id = id;\n this.source = source;\n }\n}\nclass ExternalTokenDeclaration extends Node {\n constructor(start, id, source, tokens) {\n super(start);\n this.id = id;\n this.source = source;\n this.tokens = tokens;\n }\n}\nclass ExternalSpecializeDeclaration extends Node {\n constructor(start, type, token, id, source, tokens) {\n super(start);\n this.type = type;\n this.token = token;\n this.id = id;\n this.source = source;\n this.tokens = tokens;\n }\n}\nclass ExternalPropSourceDeclaration extends Node {\n constructor(start, id, source) {\n super(start);\n this.id = id;\n this.source = source;\n }\n}\nclass ExternalPropDeclaration extends Node {\n constructor(start, id, externalID, source) {\n super(start);\n this.id = id;\n this.externalID = externalID;\n this.source = source;\n }\n}\nclass Identifier extends Node {\n constructor(start, name) {\n super(start);\n this.name = name;\n }\n toString() { return this.name; }\n}\nclass Expression extends Node {\n walk(f) { return f(this); }\n eq(_other) { return false; }\n}\nExpression.prototype.prec = 10;\nclass NameExpression extends Expression {\n constructor(start, id, args) {\n super(start);\n this.id = id;\n this.args = args;\n }\n toString() { return this.id.name + (this.args.length ? `<${this.args.join()}>` : \"\"); }\n eq(other) {\n return this.id.name == other.id.name && exprsEq(this.args, other.args);\n }\n walk(f) {\n let args = walkExprs(this.args, f);\n return f(args == this.args ? this : new NameExpression(this.start, this.id, args));\n }\n}\nclass SpecializeExpression extends Expression {\n constructor(start, type, props, token, content) {\n super(start);\n this.type = type;\n this.props = props;\n this.token = token;\n this.content = content;\n }\n toString() { return `@${this.type}[${this.props.join(\",\")}]<${this.token}, ${this.content}>`; }\n eq(other) {\n return this.type == other.type && Prop.eqProps(this.props, other.props) && exprEq(this.token, other.token) &&\n exprEq(this.content, other.content);\n }\n walk(f) {\n let token = this.token.walk(f), content = this.content.walk(f);\n return f(token == this.token && content == this.content ? this : new SpecializeExpression(this.start, this.type, this.props, token, content));\n }\n}\nclass InlineRuleExpression extends Expression {\n constructor(start, rule) {\n super(start);\n this.rule = rule;\n }\n toString() {\n let rule = this.rule;\n return `${rule.id}${rule.props.length ? `[${rule.props.join(\",\")}]` : \"\"} { ${rule.expr} }`;\n }\n eq(other) {\n let rule = this.rule, oRule = other.rule;\n return exprEq(rule.expr, oRule.expr) && rule.id.name == oRule.id.name && Prop.eqProps(rule.props, oRule.props);\n }\n walk(f) {\n let rule = this.rule, expr = rule.expr.walk(f);\n return f(expr == rule.expr ? this :\n new InlineRuleExpression(this.start, new RuleDeclaration(rule.start, rule.id, rule.props, [], expr)));\n }\n}\nclass ChoiceExpression extends Expression {\n constructor(start, exprs) {\n super(start);\n this.exprs = exprs;\n }\n toString() { return this.exprs.map(e => maybeParens(e, this)).join(\" | \"); }\n eq(other) {\n return exprsEq(this.exprs, other.exprs);\n }\n walk(f) {\n let exprs = walkExprs(this.exprs, f);\n return f(exprs == this.exprs ? this : new ChoiceExpression(this.start, exprs));\n }\n}\nChoiceExpression.prototype.prec = 1;\nclass SequenceExpression extends Expression {\n constructor(start, exprs, markers, empty = false) {\n super(start);\n this.exprs = exprs;\n this.markers = markers;\n this.empty = empty;\n }\n toString() { return this.empty ? \"()\" : this.exprs.map(e => maybeParens(e, this)).join(\" \"); }\n eq(other) {\n return exprsEq(this.exprs, other.exprs) && this.markers.every((m, i) => {\n let om = other.markers[i];\n return m.length == om.length && m.every((x, i) => x.eq(om[i]));\n });\n }\n walk(f) {\n let exprs = walkExprs(this.exprs, f);\n return f(exprs == this.exprs ? this : new SequenceExpression(this.start, exprs, this.markers, this.empty && !exprs.length));\n }\n}\nSequenceExpression.prototype.prec = 2;\nclass ConflictMarker extends Node {\n constructor(start, id, type) {\n super(start);\n this.id = id;\n this.type = type;\n }\n toString() { return (this.type == \"ambig\" ? \"~\" : \"!\") + this.id.name; }\n eq(other) { return this.id.name == other.id.name && this.type == other.type; }\n}\nclass RepeatExpression extends Expression {\n constructor(start, expr, kind) {\n super(start);\n this.expr = expr;\n this.kind = kind;\n }\n toString() { return maybeParens(this.expr, this) + this.kind; }\n eq(other) {\n return exprEq(this.expr, other.expr) && this.kind == other.kind;\n }\n walk(f) {\n let expr = this.expr.walk(f);\n return f(expr == this.expr ? this : new RepeatExpression(this.start, expr, this.kind));\n }\n}\nRepeatExpression.prototype.prec = 3;\nclass LiteralExpression extends Expression {\n // value.length is always > 0\n constructor(start, value) {\n super(start);\n this.value = value;\n }\n toString() { return JSON.stringify(this.value); }\n eq(other) { return this.value == other.value; }\n}\nclass SetExpression extends Expression {\n constructor(start, ranges, inverted) {\n super(start);\n this.ranges = ranges;\n this.inverted = inverted;\n }\n toString() {\n return `[${this.inverted ? \"^\" : \"\"}${this.ranges.map(([a, b]) => {\n return String.fromCodePoint(a) + (b == a + 1 ? \"\" : \"-\" + String.fromCodePoint(b));\n })}]`;\n }\n eq(other) {\n return this.inverted == other.inverted && this.ranges.length == other.ranges.length &&\n this.ranges.every(([a, b], i) => { let [x, y] = other.ranges[i]; return a == x && b == y; });\n }\n}\nclass AnyExpression extends Expression {\n constructor(start) {\n super(start);\n }\n toString() { return \"_\"; }\n eq() { return true; }\n}\nfunction walkExprs(exprs, f) {\n let result = null;\n for (let i = 0; i < exprs.length; i++) {\n let expr = exprs[i].walk(f);\n if (expr != exprs[i] && !result)\n result = exprs.slice(0, i);\n if (result)\n result.push(expr);\n }\n return result || exprs;\n}\nconst CharClasses = {\n asciiLetter: [[65, 91], [97, 123]],\n asciiLowercase: [[97, 123]],\n asciiUppercase: [[65, 91]],\n digit: [[48, 58]],\n whitespace: [[9, 14], [32, 33], [133, 134], [160, 161], [5760, 5761], [8192, 8203],\n [8232, 8234], [8239, 8240], [8287, 8288], [12288, 12289]],\n eof: [[0xffff, 0xffff]]\n};\nclass CharClass extends Expression {\n constructor(start, type) {\n super(start);\n this.type = type;\n }\n toString() { return \"@\" + this.type; }\n eq(expr) { return this.type == expr.type; }\n}\nfunction exprEq(a, b) {\n return a.constructor == b.constructor && a.eq(b);\n}\nfunction exprsEq(a, b) {\n return a.length == b.length && a.every((e, i) => exprEq(e, b[i]));\n}\nclass Prop extends Node {\n constructor(start, at, name, value) {\n super(start);\n this.at = at;\n this.name = name;\n this.value = value;\n }\n eq(other) {\n return this.name == other.name && this.value.length == other.value.length &&\n this.value.every((v, i) => v.value == other.value[i].value && v.name == other.value[i].name);\n }\n toString() {\n let result = (this.at ? \"@\" : \"\") + this.name;\n if (this.value.length) {\n result += \"=\";\n for (let { name, value } of this.value)\n result += name ? `{${name}}` : /[^\\w-]/.test(value) ? JSON.stringify(value) : value;\n }\n return result;\n }\n static eqProps(a, b) {\n return a.length == b.length && a.every((p, i) => p.eq(b[i]));\n }\n}\nclass PropPart extends Node {\n constructor(start, value, name) {\n super(start);\n this.value = value;\n this.name = name;\n }\n}\nfunction maybeParens(node, parent) {\n return node.prec < parent.prec ? \"(\" + node.toString() + \")\" : node.toString();\n}\n\n/**\nThe type of error raised when the parser generator finds an issue.\n*/\nclass GenError extends Error {\n}\n\nfunction hasProps(props) {\n for (let _p in props)\n return true;\n return false;\n}\nlet termHash = 0;\nclass Term {\n constructor(name, flags, nodeName, props = {}) {\n this.name = name;\n this.flags = flags;\n this.nodeName = nodeName;\n this.props = props;\n this.hash = ++termHash; // Used for sorting and hashing during parser generation\n this.id = -1; // Assigned in a later stage, used in actual output\n // Filled in only after the rules are simplified, used in automaton.ts\n this.rules = [];\n }\n toString() { return this.name; }\n get nodeType() { return this.top || this.nodeName != null || hasProps(this.props) || this.repeated; }\n get terminal() { return (this.flags & 1 /* TermFlag.Terminal */) > 0; }\n get eof() { return (this.flags & 4 /* TermFlag.Eof */) > 0; }\n get error() { return \"error\" in this.props; }\n get top() { return (this.flags & 2 /* TermFlag.Top */) > 0; }\n get interesting() { return this.flags > 0 || this.nodeName != null; }\n get repeated() { return (this.flags & 16 /* TermFlag.Repeated */) > 0; }\n set preserve(value) { this.flags = value ? this.flags | 8 /* TermFlag.Preserve */ : this.flags & ~8 /* TermFlag.Preserve */; }\n get preserve() { return (this.flags & 8 /* TermFlag.Preserve */) > 0; }\n set inline(value) { this.flags = value ? this.flags | 32 /* TermFlag.Inline */ : this.flags & ~32 /* TermFlag.Inline */; }\n get inline() { return (this.flags & 32 /* TermFlag.Inline */) > 0; }\n cmp(other) { return this.hash - other.hash; }\n}\nclass TermSet {\n constructor() {\n this.terms = [];\n // Map from term names to Term instances\n this.names = Object.create(null);\n this.tops = [];\n this.eof = this.term(\"␄\", null, 1 /* TermFlag.Terminal */ | 4 /* TermFlag.Eof */);\n this.error = this.term(\"⚠\", \"⚠\", 8 /* TermFlag.Preserve */);\n }\n term(name, nodeName, flags = 0, props = {}) {\n let term = new Term(name, flags, nodeName, props);\n this.terms.push(term);\n this.names[name] = term;\n return term;\n }\n makeTop(nodeName, props) {\n const term = this.term(\"@top\", nodeName, 2 /* TermFlag.Top */, props);\n this.tops.push(term);\n return term;\n }\n makeTerminal(name, nodeName, props = {}) {\n return this.term(name, nodeName, 1 /* TermFlag.Terminal */, props);\n }\n makeNonTerminal(name, nodeName, props = {}) {\n return this.term(name, nodeName, 0, props);\n }\n makeRepeat(name) {\n return this.term(name, null, 16 /* TermFlag.Repeated */);\n }\n uniqueName(name) {\n for (let i = 0;; i++) {\n let cur = i ? `${name}-${i}` : name;\n if (!this.names[cur])\n return cur;\n }\n }\n finish(rules) {\n for (let rule of rules)\n rule.name.rules.push(rule);\n this.terms = this.terms.filter(t => t.terminal || t.preserve || rules.some(r => r.name == t || r.parts.includes(t)));\n let names = {};\n let nodeTypes = [this.error];\n this.error.id = 0 /* T.Err */;\n let nextID = 0 /* T.Err */ + 1;\n // Assign ids to terms that represent node types\n for (let term of this.terms)\n if (term.id < 0 && term.nodeType && !term.repeated) {\n term.id = nextID++;\n nodeTypes.push(term);\n }\n // Put all repeated terms after the regular node types\n let minRepeatTerm = nextID;\n for (let term of this.terms)\n if (term.repeated) {\n term.id = nextID++;\n nodeTypes.push(term);\n }\n // Then comes the EOF term\n this.eof.id = nextID++;\n // And then the remaining (non-node, non-repeat) terms.\n for (let term of this.terms) {\n if (term.id < 0)\n term.id = nextID++;\n if (term.name)\n names[term.id] = term.name;\n }\n if (nextID >= 0xfffe)\n throw new GenError(\"Too many terms\");\n return { nodeTypes, names, minRepeatTerm, maxTerm: nextID - 1 };\n }\n}\nfunction cmpSet(a, b, cmp) {\n if (a.length != b.length)\n return a.length - b.length;\n for (let i = 0; i < a.length; i++) {\n let diff = cmp(a[i], b[i]);\n if (diff)\n return diff;\n }\n return 0;\n}\nconst none$3 = [];\nclass Conflicts {\n constructor(precedence, ambigGroups = none$3, cut = 0) {\n this.precedence = precedence;\n this.ambigGroups = ambigGroups;\n this.cut = cut;\n }\n join(other) {\n if (this == Conflicts.none || this == other)\n return other;\n if (other == Conflicts.none)\n return this;\n return new Conflicts(Math.max(this.precedence, other.precedence), union(this.ambigGroups, other.ambigGroups), Math.max(this.cut, other.cut));\n }\n cmp(other) {\n return this.precedence - other.precedence || cmpSet(this.ambigGroups, other.ambigGroups, (a, b) => a < b ? -1 : a > b ? 1 : 0) ||\n this.cut - other.cut;\n }\n}\nConflicts.none = new Conflicts(0);\nfunction union(a, b) {\n if (a.length == 0 || a == b)\n return b;\n if (b.length == 0)\n return a;\n let result = a.slice();\n for (let value of b)\n if (!a.includes(value))\n result.push(value);\n return result.sort();\n}\nlet ruleID = 0;\nclass Rule {\n constructor(name, parts, conflicts, skip) {\n this.name = name;\n this.parts = parts;\n this.conflicts = conflicts;\n this.skip = skip;\n this.id = ruleID++;\n }\n cmp(rule) {\n return this.id - rule.id;\n }\n cmpNoName(rule) {\n return this.parts.length - rule.parts.length ||\n this.skip.hash - rule.skip.hash ||\n this.parts.reduce((r, s, i) => r || s.cmp(rule.parts[i]), 0) ||\n cmpSet(this.conflicts, rule.conflicts, (a, b) => a.cmp(b));\n }\n toString() {\n return this.name + \" -> \" + this.parts.join(\" \");\n }\n get isRepeatWrap() {\n return this.name.repeated && this.parts.length == 2 && this.parts[0] == this.name;\n }\n sameReduce(other) {\n return this.name == other.name && this.parts.length == other.parts.length && this.isRepeatWrap == other.isRepeatWrap;\n }\n}\n\nconst MAX_CHAR = 0xffff;\nclass Edge {\n constructor(from, to, target) {\n this.from = from;\n this.to = to;\n this.target = target;\n }\n toString() {\n return `-> ${this.target.id}[label=${JSON.stringify(this.from < 0 ? \"ε\" : charFor(this.from) +\n (this.to > this.from + 1 ? \"-\" + charFor(this.to - 1) : \"\"))}]`;\n }\n}\nfunction charFor(n) {\n return n > MAX_CHAR ? \"∞\"\n : n == 10 ? \"\\\\n\"\n : n == 13 ? \"\\\\r\"\n : n < 32 || n >= 0xd800 && n < 0xdfff ? \"\\\\u{\" + n.toString(16) + \"}\"\n : String.fromCharCode(n);\n}\nfunction minimize(states, start) {\n let partition = Object.create(null);\n let byAccepting = Object.create(null);\n for (let state of states) {\n let id = ids(state.accepting);\n let group = byAccepting[id] || (byAccepting[id] = []);\n group.push(state);\n partition[state.id] = group;\n }\n for (;;) {\n let split = false, newPartition = Object.create(null);\n for (let state of states) {\n if (newPartition[state.id])\n continue;\n let group = partition[state.id];\n if (group.length == 1) {\n newPartition[group[0].id] = group;\n continue;\n }\n let parts = [];\n groups: for (let state of group) {\n for (let p of parts) {\n if (isEquivalent(state, p[0], partition)) {\n p.push(state);\n continue groups;\n }\n }\n parts.push([state]);\n }\n if (parts.length > 1)\n split = true;\n for (let p of parts)\n for (let s of p)\n newPartition[s.id] = p;\n }\n if (!split)\n return applyMinimization(states, start, partition);\n partition = newPartition;\n }\n}\nfunction isEquivalent(a, b, partition) {\n if (a.edges.length != b.edges.length)\n return false;\n for (let i = 0; i < a.edges.length; i++) {\n let eA = a.edges[i], eB = b.edges[i];\n if (eA.from != eB.from || eA.to != eB.to || partition[eA.target.id] != partition[eB.target.id])\n return false;\n }\n return true;\n}\nfunction applyMinimization(states, start, partition) {\n for (let state of states) {\n for (let i = 0; i < state.edges.length; i++) {\n let edge = state.edges[i], target = partition[edge.target.id][0];\n if (target != edge.target)\n state.edges[i] = new Edge(edge.from, edge.to, target);\n }\n }\n return partition[start.id][0];\n}\nlet stateID = 1;\nlet State$1 = class State {\n constructor(accepting = [], id = stateID++) {\n this.accepting = accepting;\n this.id = id;\n this.edges = [];\n }\n edge(from, to, target) {\n this.edges.push(new Edge(from, to, target));\n }\n nullEdge(target) { this.edge(-1, -1, target); }\n compile() {\n let labeled = Object.create(null), localID = 0;\n let startState = explore(this.closure().sort((a, b) => a.id - b.id));\n return minimize(Object.values(labeled), startState);\n function explore(states) {\n let newState = labeled[ids(states)] =\n new State(states.reduce((a, s) => union(a, s.accepting), []), localID++);\n let out = [];\n for (let state of states)\n for (let edge of state.edges) {\n if (edge.from >= 0)\n out.push(edge);\n }\n let transitions = mergeEdges(out);\n for (let merged of transitions) {\n let targets = merged.targets.sort((a, b) => a.id - b.id);\n newState.edge(merged.from, merged.to, labeled[ids(targets)] || explore(targets));\n }\n return newState;\n }\n }\n closure() {\n let result = [], seen = Object.create(null);\n function explore(state) {\n if (seen[state.id])\n return;\n seen[state.id] = true;\n // States with only epsilon edges and no accepting term that\n // isn't also in the next states are left out to help reduce the\n // number of unique state combinations\n if (state.edges.some(e => e.from >= 0) ||\n (state.accepting.length > 0 && !state.edges.some(e => sameSet$1(state.accepting, e.target.accepting))))\n result.push(state);\n for (let edge of state.edges)\n if (edge.from < 0)\n explore(edge.target);\n }\n explore(this);\n return result;\n }\n findConflicts(occurTogether) {\n let conflicts = [], cycleTerms = this.cycleTerms();\n function add(a, b, soft, aEdges, bEdges) {\n if (a.id < b.id) {\n [a, b] = [b, a];\n soft = -soft;\n }\n let found = conflicts.find(c => c.a == a && c.b == b);\n if (!found)\n conflicts.push(new Conflict$1(a, b, soft, exampleFromEdges(aEdges), bEdges && exampleFromEdges(bEdges)));\n else if (found.soft != soft)\n found.soft = 0;\n }\n this.reachable((state, edges) => {\n if (state.accepting.length == 0)\n return;\n for (let i = 0; i < state.accepting.length; i++)\n for (let j = i + 1; j < state.accepting.length; j++)\n add(state.accepting[i], state.accepting[j], 0, edges);\n state.reachable((s, es) => {\n if (s != state)\n for (let term of s.accepting) {\n let hasCycle = cycleTerms.includes(term);\n for (let orig of state.accepting)\n if (term != orig)\n add(term, orig, hasCycle || cycleTerms.includes(orig) || !occurTogether(term, orig) ? 0 : 1, edges, edges.concat(es));\n }\n });\n });\n return conflicts;\n }\n cycleTerms() {\n let work = [];\n this.reachable(state => {\n for (let { target } of state.edges)\n work.push(state, target);\n });\n let table = new Map;\n let haveCycle = [];\n for (let i = 0; i < work.length;) {\n let from = work[i++], to = work[i++];\n let entry = table.get(from);\n if (!entry)\n table.set(from, entry = []);\n if (entry.includes(to))\n continue;\n if (from == to) {\n if (!haveCycle.includes(from))\n haveCycle.push(from);\n }\n else {\n for (let next of entry)\n work.push(from, next);\n entry.push(to);\n }\n }\n let result = [];\n for (let state of haveCycle) {\n for (let term of state.accepting) {\n if (!result.includes(term))\n result.push(term);\n }\n }\n return result;\n }\n reachable(f) {\n let seen = [], edges = [];\n (function explore(s) {\n f(s, edges);\n seen.push(s);\n for (let edge of s.edges)\n if (!seen.includes(edge.target)) {\n edges.push(edge);\n explore(edge.target);\n edges.pop();\n }\n })(this);\n }\n toString() {\n let out = \"digraph {\\n\";\n this.reachable(state => {\n if (state.accepting.length)\n out += ` ${state.id} [label=${JSON.stringify(state.accepting.join())}];\\n`;\n for (let edge of state.edges)\n out += ` ${state.id} ${edge};\\n`;\n });\n return out + \"}\";\n }\n // Tokenizer data is represented as a single flat array. This\n // contains regions for each tokenizer state. Region offsets are\n // used to identify states.\n //\n // Each state is laid out as:\n // - Token group mask\n // - Offset of the end of the accepting data\n // - Number of outgoing edges in the state\n // - Pairs of token masks and term ids that indicate the accepting\n // states, sorted by precedence\n // - Triples for the edges: each with a low and high bound and the\n // offset of the next state.\n toArray(groupMasks, precedence) {\n let offsets = []; // Used to 'link' the states after building the arrays\n let data = [];\n this.reachable(state => {\n let start = data.length;\n let acceptEnd = start + 3 + state.accepting.length * 2;\n offsets[state.id] = start;\n data.push(state.stateMask(groupMasks), acceptEnd, state.edges.length);\n state.accepting.sort((a, b) => precedence.indexOf(a.id) - precedence.indexOf(b.id));\n for (let term of state.accepting)\n data.push(term.id, groupMasks[term.id] || 0xffff);\n for (let edge of state.edges)\n data.push(edge.from, edge.to, -edge.target.id - 1);\n });\n // Replace negative numbers with resolved state offsets\n for (let i = 0; i < data.length; i++)\n if (data[i] < 0)\n data[i] = offsets[-data[i] - 1];\n if (data.length > Math.pow(2, 16))\n throw new GenError(\"Tokenizer tables too big to represent with 16-bit offsets.\");\n return Uint16Array.from(data);\n }\n stateMask(groupMasks) {\n let mask = 0;\n this.reachable(state => {\n for (let term of state.accepting)\n mask |= (groupMasks[term.id] || 0xffff);\n });\n return mask;\n }\n};\nlet Conflict$1 = class Conflict {\n constructor(a, b, \n // Conflicts between two non-cyclic tokens are marked as\n // 'soft', with a negative number if a is shorter than\n // b, and a positive if b is shorter than a.\n soft, exampleA, exampleB) {\n this.a = a;\n this.b = b;\n this.soft = soft;\n this.exampleA = exampleA;\n this.exampleB = exampleB;\n }\n};\nfunction exampleFromEdges(edges) {\n let str = \"\";\n for (let i = 0; i < edges.length; i++)\n str += String.fromCharCode(edges[i].from);\n return str;\n}\nfunction ids(elts) {\n let result = \"\";\n for (let elt of elts) {\n if (result.length)\n result += \"-\";\n result += elt.id;\n }\n return result;\n}\nfunction sameSet$1(a, b) {\n if (a.length != b.length)\n return false;\n for (let i = 0; i < a.length; i++)\n if (a[i] != b[i])\n return false;\n return true;\n}\nclass MergedEdge {\n constructor(from, to, targets) {\n this.from = from;\n this.to = to;\n this.targets = targets;\n }\n}\n// Merge multiple edges (tagged by character ranges) into a set of\n// mutually exclusive ranges pointing at all target states for that\n// range\nfunction mergeEdges(edges) {\n let separate = [], result = [];\n for (let edge of edges) {\n if (!separate.includes(edge.from))\n separate.push(edge.from);\n if (!separate.includes(edge.to))\n separate.push(edge.to);\n }\n separate.sort((a, b) => a - b);\n for (let i = 1; i < separate.length; i++) {\n let from = separate[i - 1], to = separate[i];\n let found = [];\n for (let edge of edges)\n if (edge.to > from && edge.from < to) {\n for (let target of edge.target.closure())\n if (!found.includes(target))\n found.push(target);\n }\n if (found.length)\n result.push(new MergedEdge(from, to, found));\n }\n let eof = edges.filter(e => e.from == 65535 /* Seq.End */ && e.to == 65535 /* Seq.End */);\n if (eof.length) {\n let found = [];\n for (let edge of eof)\n for (let target of edge.target.closure())\n if (!found.includes(target))\n found.push(target);\n if (found.length)\n result.push(new MergedEdge(65535 /* Seq.End */, 65535 /* Seq.End */, found));\n }\n return result;\n}\n\n// Note that this is the parser for grammar files, not the generated parser\nlet word = /[\\w_-]+/gy;\n// Some engines (specifically SpiderMonkey) have still not implemented \\p\ntry {\n word = /[\\p{Alphabetic}\\d_-]+/ugy;\n}\ncatch (_) { }\nconst none$2 = [];\nclass Input {\n constructor(string, fileName = null) {\n this.string = string;\n this.fileName = fileName;\n this.type = \"sof\";\n this.value = null;\n this.start = 0;\n this.end = 0;\n this.next();\n }\n lineInfo(pos) {\n for (let line = 1, cur = 0;;) {\n let next = this.string.indexOf(\"\\n\", cur);\n if (next > -1 && next < pos) {\n ++line;\n cur = next + 1;\n }\n else {\n return { line, ch: pos - cur };\n }\n }\n }\n message(msg, pos = -1) {\n let posInfo = this.fileName || \"\";\n if (pos > -1) {\n let info = this.lineInfo(pos);\n posInfo += (posInfo ? \" \" : \"\") + info.line + \":\" + info.ch;\n }\n return posInfo ? msg + ` (${posInfo})` : msg;\n }\n raise(msg, pos = -1) {\n throw new GenError(this.message(msg, pos));\n }\n match(pos, re) {\n let match = re.exec(this.string.slice(pos));\n return match ? pos + match[0].length : -1;\n }\n next() {\n let start = this.match(this.end, /^(\\s|\\/\\/.*|\\/\\*[^]*?\\*\\/)*/);\n if (start == this.string.length)\n return this.set(\"eof\", null, start, start);\n let next = this.string[start];\n if (next == '\"') {\n let end = this.match(start + 1, /^(\\\\.|[^\"\\\\])*\"/);\n if (end == -1)\n this.raise(\"Unterminated string literal\", start);\n return this.set(\"string\", readString(this.string.slice(start + 1, end - 1)), start, end);\n }\n else if (next == \"'\") {\n let end = this.match(start + 1, /^(\\\\.|[^'\\\\])*'/);\n if (end == -1)\n this.raise(\"Unterminated string literal\", start);\n return this.set(\"string\", readString(this.string.slice(start + 1, end - 1)), start, end);\n }\n else if (next == \"@\") {\n word.lastIndex = start + 1;\n let m = word.exec(this.string);\n if (!m)\n return this.raise(\"@ without a name\", start);\n return this.set(\"at\", m[0], start, start + 1 + m[0].length);\n }\n else if ((next == \"$\" || next == \"!\") && this.string[start + 1] == \"[\") {\n let end = this.match(start + 2, /^(?:\\\\.|[^\\]\\\\])*\\]/);\n if (end == -1)\n this.raise(\"Unterminated character set\", start);\n return this.set(\"set\", this.string.slice(start + 2, end - 1), start, end);\n }\n else if (/[\\[\\]()!~+*?{}<>\\.,|:$=]/.test(next)) {\n return this.set(next, null, start, start + 1);\n }\n else {\n word.lastIndex = start;\n let m = word.exec(this.string);\n if (!m)\n return this.raise(\"Unexpected character \" + JSON.stringify(next), start);\n return this.set(\"id\", m[0], start, start + m[0].length);\n }\n }\n set(type, value, start, end) {\n this.type = type;\n this.value = value;\n this.start = start;\n this.end = end;\n }\n eat(type, value = null) {\n if (this.type == type && (value == null || this.value === value)) {\n this.next();\n return true;\n }\n else {\n return false;\n }\n }\n unexpected() {\n return this.raise(`Unexpected token '${this.string.slice(this.start, this.end)}'`, this.start);\n }\n expect(type, value = null) {\n let val = this.value;\n if (this.type != type || !(value == null || val === value))\n this.unexpected();\n this.next();\n return val;\n }\n parse() {\n return parseGrammar(this);\n }\n}\nfunction parseGrammar(input) {\n let start = input.start;\n let rules = [];\n let prec = null;\n let tokens = null;\n let localTokens = [];\n let mainSkip = null;\n let scopedSkip = [];\n let dialects = [];\n let context = null;\n let external = [];\n let specialized = [];\n let props = [];\n let propSources = [];\n let tops = [];\n let sawTop = false;\n let autoDelim = false;\n while (input.type != \"eof\") {\n let start = input.start;\n if (input.eat(\"at\", \"top\")) {\n if (input.type != \"id\")\n input.raise(`Top rules must have a name`, input.start);\n tops.push(parseRule(input, parseIdent(input)));\n sawTop = true;\n }\n else if (input.type == \"at\" && input.value == \"tokens\") {\n if (tokens)\n input.raise(`Multiple @tokens declaractions`, input.start);\n else\n tokens = parseTokens(input);\n }\n else if (input.eat(\"at\", \"local\")) {\n input.expect(\"id\", \"tokens\");\n localTokens.push(parseLocalTokens(input, start));\n }\n else if (input.eat(\"at\", \"context\")) {\n if (context)\n input.raise(`Multiple @context declarations`, start);\n let id = parseIdent(input);\n input.expect(\"id\", \"from\");\n let source = input.expect(\"string\");\n context = new ContextDeclaration(start, id, source);\n }\n else if (input.eat(\"at\", \"external\")) {\n if (input.eat(\"id\", \"tokens\"))\n external.push(parseExternalTokens(input, start));\n else if (input.eat(\"id\", \"prop\"))\n props.push(parseExternalProp(input, start));\n else if (input.eat(\"id\", \"extend\"))\n specialized.push(parseExternalSpecialize(input, \"extend\", start));\n else if (input.eat(\"id\", \"specialize\"))\n specialized.push(parseExternalSpecialize(input, \"specialize\", start));\n else if (input.eat(\"id\", \"propSource\"))\n propSources.push(parseExternalPropSource(input, start));\n else\n input.unexpected();\n }\n else if (input.eat(\"at\", \"dialects\")) {\n input.expect(\"{\");\n for (let first = true; !input.eat(\"}\"); first = false) {\n if (!first)\n input.eat(\",\");\n dialects.push(parseIdent(input));\n }\n }\n else if (input.type == \"at\" && input.value == \"precedence\") {\n if (prec)\n input.raise(`Multiple precedence declarations`, input.start);\n prec = parsePrecedence(input);\n }\n else if (input.eat(\"at\", \"detectDelim\")) {\n autoDelim = true;\n }\n else if (input.eat(\"at\", \"skip\")) {\n let skip = parseBracedExpr(input);\n if (input.type == \"{\") {\n input.next();\n let rules = [], topRules = [];\n while (!input.eat(\"}\")) {\n if (input.eat(\"at\", \"top\")) {\n topRules.push(parseRule(input, parseIdent(input)));\n sawTop = true;\n }\n else {\n rules.push(parseRule(input));\n }\n }\n scopedSkip.push({ expr: skip, topRules, rules });\n }\n else {\n if (mainSkip)\n input.raise(`Multiple top-level skip declarations`, input.start);\n mainSkip = skip;\n }\n }\n else {\n rules.push(parseRule(input));\n }\n }\n if (!sawTop)\n return input.raise(`Missing @top declaration`);\n return new GrammarDeclaration(start, rules, tops, tokens, localTokens, context, external, specialized, propSources, prec, mainSkip, scopedSkip, dialects, props, autoDelim);\n}\nfunction parseRule(input, named) {\n let start = named ? named.start : input.start;\n let id = named || parseIdent(input);\n let props = parseProps(input);\n let params = [];\n if (input.eat(\"<\"))\n while (!input.eat(\">\")) {\n if (params.length)\n input.expect(\",\");\n params.push(parseIdent(input));\n }\n let expr = parseBracedExpr(input);\n return new RuleDeclaration(start, id, props, params, expr);\n}\nfunction parseProps(input) {\n if (input.type != \"[\")\n return none$2;\n let props = [];\n input.expect(\"[\");\n while (!input.eat(\"]\")) {\n if (props.length)\n input.expect(\",\");\n props.push(parseProp(input));\n }\n return props;\n}\nfunction parseProp(input) {\n let start = input.start, value = [], name = input.value, at = input.type == \"at\";\n if (!input.eat(\"at\") && !input.eat(\"id\"))\n input.unexpected();\n if (input.eat(\"=\"))\n for (;;) {\n if (input.type == \"string\" || input.type == \"id\") {\n value.push(new PropPart(input.start, input.value, null));\n input.next();\n }\n else if (input.eat(\".\")) {\n value.push(new PropPart(input.start, \".\", null));\n }\n else if (input.eat(\"{\")) {\n value.push(new PropPart(input.start, null, input.expect(\"id\")));\n input.expect(\"}\");\n }\n else {\n break;\n }\n }\n return new Prop(start, at, name, value);\n}\nfunction parseBracedExpr(input) {\n input.expect(\"{\");\n let expr = parseExprChoice(input);\n input.expect(\"}\");\n return expr;\n}\nconst SET_MARKER = \"\\ufdda\"; // (Invalid unicode character)\nfunction parseExprInner(input) {\n let start = input.start;\n if (input.eat(\"(\")) {\n if (input.eat(\")\"))\n return new SequenceExpression(start, none$2, [none$2, none$2]);\n let expr = parseExprChoice(input);\n input.expect(\")\");\n return expr;\n }\n else if (input.type == \"string\") {\n let value = input.value;\n input.next();\n if (value.length == 0)\n return new SequenceExpression(start, none$2, [none$2, none$2]);\n return new LiteralExpression(start, value);\n }\n else if (input.eat(\"id\", \"_\")) {\n return new AnyExpression(start);\n }\n else if (input.type == \"set\") {\n let content = input.value, invert = input.string[input.start] == \"!\";\n let unescaped = readString(content.replace(/\\\\.|-|\"/g, (m) => {\n return m == \"-\" ? SET_MARKER : m == '\"' ? '\\\\\"' : m;\n }));\n let ranges = [];\n for (let pos = 0; pos < unescaped.length;) {\n let code = unescaped.codePointAt(pos);\n pos += code > 0xffff ? 2 : 1;\n if (pos < unescaped.length - 1 && unescaped[pos] == SET_MARKER) {\n let end = unescaped.codePointAt(pos + 1);\n pos += end > 0xffff ? 3 : 2;\n if (end < code)\n input.raise(\"Invalid character range\", input.start);\n addRange(input, ranges, code, end + 1);\n }\n else {\n if (code == SET_MARKER.charCodeAt(0))\n code = 45;\n addRange(input, ranges, code, code + 1);\n }\n }\n input.next();\n return new SetExpression(start, ranges.sort((a, b) => a[0] - b[0]), invert);\n }\n else if (input.type == \"at\" && (input.value == \"specialize\" || input.value == \"extend\")) {\n let { start, value } = input;\n input.next();\n let props = parseProps(input);\n input.expect(\"<\");\n let token = parseExprChoice(input), content;\n if (input.eat(\",\")) {\n content = parseExprChoice(input);\n }\n else if (token instanceof LiteralExpression) {\n content = token;\n }\n else {\n input.raise(`@${value} requires two arguments when its first argument isn't a literal string`);\n }\n input.expect(\">\");\n return new SpecializeExpression(start, value, props, token, content);\n }\n else if (input.type == \"at\" && CharClasses.hasOwnProperty(input.value)) {\n let cls = new CharClass(input.start, input.value);\n input.next();\n return cls;\n }\n else if (input.type == \"[\") {\n let rule = parseRule(input, new Identifier(start, \"_anon\"));\n if (rule.params.length)\n input.raise(`Inline rules can't have parameters`, rule.start);\n return new InlineRuleExpression(start, rule);\n }\n else {\n let id = parseIdent(input);\n if (input.type == \"[\" || input.type == \"{\") {\n let rule = parseRule(input, id);\n if (rule.params.length)\n input.raise(`Inline rules can't have parameters`, rule.start);\n return new InlineRuleExpression(start, rule);\n }\n else {\n if (input.eat(\".\") && id.name == \"std\" && CharClasses.hasOwnProperty(input.value)) {\n let cls = new CharClass(start, input.value);\n input.next();\n return cls;\n }\n return new NameExpression(start, id, parseArgs(input));\n }\n }\n}\nfunction parseArgs(input) {\n let args = [];\n if (input.eat(\"<\"))\n while (!input.eat(\">\")) {\n if (args.length)\n input.expect(\",\");\n args.push(parseExprChoice(input));\n }\n return args;\n}\nfunction addRange(input, ranges, from, to) {\n if (!ranges.every(([a, b]) => b <= from || a >= to))\n input.raise(\"Overlapping character range\", input.start);\n ranges.push([from, to]);\n}\nfunction parseExprSuffix(input) {\n let start = input.start;\n let expr = parseExprInner(input);\n for (;;) {\n let kind = input.type;\n if (input.eat(\"*\") || input.eat(\"?\") || input.eat(\"+\"))\n expr = new RepeatExpression(start, expr, kind);\n else\n return expr;\n }\n}\nfunction endOfSequence(input) {\n return input.type == \"}\" || input.type == \")\" || input.type == \"|\" || input.type == \"/\" ||\n input.type == \"/\\\\\" || input.type == \"{\" || input.type == \",\" || input.type == \">\";\n}\nfunction parseExprSequence(input) {\n let start = input.start, exprs = [], markers = [none$2];\n do {\n // Add markers at this position\n for (;;) {\n let localStart = input.start, markerType;\n if (input.eat(\"~\"))\n markerType = \"ambig\";\n else if (input.eat(\"!\"))\n markerType = \"prec\";\n else\n break;\n markers[markers.length - 1] =\n markers[markers.length - 1].concat(new ConflictMarker(localStart, parseIdent(input), markerType));\n }\n if (endOfSequence(input))\n break;\n exprs.push(parseExprSuffix(input));\n markers.push(none$2);\n } while (!endOfSequence(input));\n if (exprs.length == 1 && markers.every(ms => ms.length == 0))\n return exprs[0];\n return new SequenceExpression(start, exprs, markers, !exprs.length);\n}\nfunction parseExprChoice(input) {\n let start = input.start, left = parseExprSequence(input);\n if (!input.eat(\"|\"))\n return left;\n let exprs = [left];\n do {\n exprs.push(parseExprSequence(input));\n } while (input.eat(\"|\"));\n let empty = exprs.find(s => s instanceof SequenceExpression && s.empty);\n if (empty)\n input.raise(\"Empty expression in choice operator. If this is intentional, use () to make it explicit.\", empty.start);\n return new ChoiceExpression(start, exprs);\n}\nfunction parseIdent(input) {\n if (input.type != \"id\")\n input.unexpected();\n let start = input.start, name = input.value;\n input.next();\n return new Identifier(start, name);\n}\nfunction parsePrecedence(input) {\n let start = input.start;\n input.next();\n input.expect(\"{\");\n let items = [];\n while (!input.eat(\"}\")) {\n if (items.length)\n input.eat(\",\");\n items.push({\n id: parseIdent(input),\n type: input.eat(\"at\", \"left\") ? \"left\" : input.eat(\"at\", \"right\") ? \"right\" : input.eat(\"at\", \"cut\") ? \"cut\" : null\n });\n }\n return new PrecDeclaration(start, items);\n}\nfunction parseTokens(input) {\n let start = input.start;\n input.next();\n input.expect(\"{\");\n let tokenRules = [];\n let literals = [];\n let precedences = [];\n let conflicts = [];\n while (!input.eat(\"}\")) {\n if (input.type == \"at\" && input.value == \"precedence\") {\n precedences.push(parseTokenPrecedence(input));\n }\n else if (input.type == \"at\" && input.value == \"conflict\") {\n conflicts.push(parseTokenConflict(input));\n }\n else if (input.type == \"string\") {\n literals.push(new LiteralDeclaration(input.start, input.expect(\"string\"), parseProps(input)));\n }\n else {\n tokenRules.push(parseRule(input));\n }\n }\n return new TokenDeclaration(start, precedences, conflicts, tokenRules, literals);\n}\nfunction parseLocalTokens(input, start) {\n input.expect(\"{\");\n let tokenRules = [];\n let precedences = [];\n let fallback = null;\n while (!input.eat(\"}\")) {\n if (input.type == \"at\" && input.value == \"precedence\") {\n precedences.push(parseTokenPrecedence(input));\n }\n else if (input.eat(\"at\", \"else\") && !fallback) {\n fallback = { id: parseIdent(input), props: parseProps(input) };\n }\n else {\n tokenRules.push(parseRule(input));\n }\n }\n return new LocalTokenDeclaration(start, precedences, tokenRules, fallback);\n}\nfunction parseTokenPrecedence(input) {\n let start = input.start;\n input.next();\n input.expect(\"{\");\n let tokens = [];\n while (!input.eat(\"}\")) {\n if (tokens.length)\n input.eat(\",\");\n let expr = parseExprInner(input);\n if (expr instanceof LiteralExpression || expr instanceof NameExpression)\n tokens.push(expr);\n else\n input.raise(`Invalid expression in token precedences`, expr.start);\n }\n return new TokenPrecDeclaration(start, tokens);\n}\nfunction parseTokenConflict(input) {\n let start = input.start;\n input.next();\n input.expect(\"{\");\n let a = parseExprInner(input);\n if (!(a instanceof LiteralExpression || a instanceof NameExpression))\n input.raise(`Invalid expression in token conflict`, a.start);\n input.eat(\",\");\n let b = parseExprInner(input);\n if (!(b instanceof LiteralExpression || b instanceof NameExpression))\n input.raise(`Invalid expression in token conflict`, b.start);\n input.expect(\"}\");\n return new TokenConflictDeclaration(start, a, b);\n}\nfunction parseExternalTokenSet(input) {\n let tokens = [];\n input.expect(\"{\");\n while (!input.eat(\"}\")) {\n if (tokens.length)\n input.eat(\",\");\n let id = parseIdent(input);\n let props = parseProps(input);\n tokens.push({ id, props });\n }\n return tokens;\n}\nfunction parseExternalTokens(input, start) {\n let id = parseIdent(input);\n input.expect(\"id\", \"from\");\n let from = input.expect(\"string\");\n return new ExternalTokenDeclaration(start, id, from, parseExternalTokenSet(input));\n}\nfunction parseExternalSpecialize(input, type, start) {\n let token = parseBracedExpr(input);\n let id = parseIdent(input);\n input.expect(\"id\", \"from\");\n let from = input.expect(\"string\");\n return new ExternalSpecializeDeclaration(start, type, token, id, from, parseExternalTokenSet(input));\n}\nfunction parseExternalPropSource(input, start) {\n let id = parseIdent(input);\n input.expect(\"id\", \"from\");\n return new ExternalPropSourceDeclaration(start, id, input.expect(\"string\"));\n}\nfunction parseExternalProp(input, start) {\n let externalID = parseIdent(input);\n let id = input.eat(\"id\", \"as\") ? parseIdent(input) : externalID;\n input.expect(\"id\", \"from\");\n let from = input.expect(\"string\");\n return new ExternalPropDeclaration(start, id, externalID, from);\n}\nfunction readString(string) {\n let point = /\\\\(?:u\\{([\\da-f]+)\\}|u([\\da-f]{4})|x([\\da-f]{2})|([ntbrf0])|(.))|[^]/yig;\n let out = \"\", m;\n while (m = point.exec(string)) {\n let [all, u1, u2, u3, single, unknown] = m;\n if (u1 || u2 || u3)\n out += String.fromCodePoint(parseInt(u1 || u2 || u3, 16));\n else if (single)\n out += single == \"n\" ? \"\\n\" : single == \"t\" ? \"\\t\" : single == \"0\" ? \"\\0\" : single == \"r\" ? \"\\r\" : single == \"f\" ? \"\\f\" : \"\\b\";\n else if (unknown)\n out += unknown;\n else\n out += all;\n }\n return out;\n}\n\nfunction hash(a, b) { return (a << 5) + a + b; }\nfunction hashString(h, s) {\n for (let i = 0; i < s.length; i++)\n h = hash(h, s.charCodeAt(i));\n return h;\n}\n\nconst verbose = (typeof process != \"undefined\" && process.env.LOG) || \"\";\nconst timing = /\\btime\\b/.test(verbose);\nconst time = timing ? (label, f) => {\n let t0 = Date.now();\n let result = f();\n console.log(`${label} (${((Date.now() - t0) / 1000).toFixed(2)}s)`);\n return result;\n} : (_label, f) => f();\n\nclass Pos {\n constructor(rule, pos, \n // NOTE `ahead` and `ambigAhead` aren't mutated anymore after `finish()` has been called\n ahead, ambigAhead, skipAhead, via) {\n this.rule = rule;\n this.pos = pos;\n this.ahead = ahead;\n this.ambigAhead = ambigAhead;\n this.skipAhead = skipAhead;\n this.via = via;\n this.hash = 0;\n }\n finish() {\n let h = hash(hash(this.rule.id, this.pos), this.skipAhead.hash);\n for (let a of this.ahead)\n h = hash(h, a.hash);\n for (let group of this.ambigAhead)\n h = hashString(h, group);\n this.hash = h;\n return this;\n }\n get next() {\n return this.pos < this.rule.parts.length ? this.rule.parts[this.pos] : null;\n }\n advance() {\n return new Pos(this.rule, this.pos + 1, this.ahead, this.ambigAhead, this.skipAhead, this.via).finish();\n }\n get skip() {\n return this.pos == this.rule.parts.length ? this.skipAhead : this.rule.skip;\n }\n cmp(pos) {\n return this.rule.cmp(pos.rule) || this.pos - pos.pos || this.skipAhead.hash - pos.skipAhead.hash ||\n cmpSet(this.ahead, pos.ahead, (a, b) => a.cmp(b)) || cmpSet(this.ambigAhead, pos.ambigAhead, cmpStr);\n }\n eqSimple(pos) {\n return pos.rule == this.rule && pos.pos == this.pos;\n }\n toString() {\n let parts = this.rule.parts.map(t => t.name);\n parts.splice(this.pos, 0, \"·\");\n return `${this.rule.name} -> ${parts.join(\" \")}`;\n }\n eq(other) {\n return this == other ||\n this.hash == other.hash && this.rule == other.rule && this.pos == other.pos && this.skipAhead == other.skipAhead &&\n sameSet(this.ahead, other.ahead) &&\n sameSet(this.ambigAhead, other.ambigAhead);\n }\n trail(maxLen = 60) {\n let result = [];\n for (let pos = this; pos; pos = pos.via) {\n for (let i = pos.pos - 1; i >= 0; i--)\n result.push(pos.rule.parts[i]);\n }\n let value = result.reverse().join(\" \");\n if (value.length > maxLen)\n value = value.slice(value.length - maxLen).replace(/.*? /, \"… \");\n return value;\n }\n conflicts(pos = this.pos) {\n let result = this.rule.conflicts[pos];\n if (pos == this.rule.parts.length && this.ambigAhead.length)\n result = result.join(new Conflicts(0, this.ambigAhead));\n return result;\n }\n static addOrigins(group, context) {\n let result = group.slice();\n for (let i = 0; i < result.length; i++) {\n let next = result[i];\n if (next.pos == 0)\n for (let pos of context) {\n if (pos.next == next.rule.name && !result.includes(pos))\n result.push(pos);\n }\n }\n return result;\n }\n}\nfunction conflictsAt(group) {\n let result = Conflicts.none;\n for (let pos of group)\n result = result.join(pos.conflicts());\n return result;\n}\n// Applies automatic action precedence based on repeat productions.\n// These are left-associative, so reducing the `R -> R R` rule has\n// higher precedence.\nfunction compareRepeatPrec(a, b) {\n for (let pos of a)\n if (pos.rule.name.repeated) {\n for (let posB of b)\n if (posB.rule.name == pos.rule.name) {\n if (pos.rule.isRepeatWrap && pos.pos == 2)\n return 1;\n if (posB.rule.isRepeatWrap && posB.pos == 2)\n return -1;\n }\n }\n return 0;\n}\nfunction cmpStr(a, b) {\n return a < b ? -1 : a > b ? 1 : 0;\n}\nfunction termsAhead(rule, pos, after, first) {\n let found = [];\n for (let i = pos + 1; i < rule.parts.length; i++) {\n let next = rule.parts[i], cont = false;\n if (next.terminal) {\n addTo(next, found);\n }\n else\n for (let term of first[next.name]) {\n if (term == null)\n cont = true;\n else\n addTo(term, found);\n }\n if (!cont)\n return found;\n }\n for (let a of after)\n addTo(a, found);\n return found;\n}\nfunction eqSet(a, b) {\n if (a.length != b.length)\n return false;\n for (let i = 0; i < a.length; i++)\n if (!a[i].eq(b[i]))\n return false;\n return true;\n}\nfunction sameSet(a, b) {\n if (a.length != b.length)\n return false;\n for (let i = 0; i < a.length; i++)\n if (a[i] != b[i])\n return false;\n return true;\n}\nclass Shift {\n constructor(term, target) {\n this.term = term;\n this.target = target;\n }\n eq(other) { return other instanceof Shift && this.term == other.term && other.target.id == this.target.id; }\n cmp(other) { return other instanceof Reduce ? -1 : this.term.id - other.term.id || this.target.id - other.target.id; }\n matches(other, mapping) {\n return other instanceof Shift && mapping[other.target.id] == mapping[this.target.id];\n }\n toString() { return \"s\" + this.target.id; }\n map(mapping, states) {\n let mapped = states[mapping[this.target.id]];\n return mapped == this.target ? this : new Shift(this.term, mapped);\n }\n}\nclass Reduce {\n constructor(term, rule) {\n this.term = term;\n this.rule = rule;\n }\n eq(other) {\n return other instanceof Reduce && this.term == other.term && other.rule.sameReduce(this.rule);\n }\n cmp(other) {\n return other instanceof Shift ? 1 : this.term.id - other.term.id || this.rule.name.id - other.rule.name.id ||\n this.rule.parts.length - other.rule.parts.length;\n }\n matches(other, mapping) {\n return other instanceof Reduce && other.rule.sameReduce(this.rule);\n }\n toString() { return `${this.rule.name.name}(${this.rule.parts.length})`; }\n map() { return this; }\n}\nfunction hashPositions(set) {\n let h = 5381;\n for (let pos of set)\n h = hash(h, pos.hash);\n return h;\n}\nclass State {\n constructor(id, set, flags = 0, skip, hash = hashPositions(set), startRule = null) {\n this.id = id;\n this.set = set;\n this.flags = flags;\n this.skip = skip;\n this.hash = hash;\n this.startRule = startRule;\n this.actions = [];\n this.actionPositions = [];\n this.goto = [];\n this.tokenGroup = -1;\n this.defaultReduce = null;\n this._actionsByTerm = null;\n }\n toString() {\n let actions = this.actions.map(t => t.term + \"=\" + t).join(\",\") +\n (this.goto.length ? \" | \" + this.goto.map(g => g.term + \"=\" + g).join(\",\") : \"\");\n return this.id + \": \" + this.set.filter(p => p.pos > 0).join() +\n (this.defaultReduce ? `\\n always ${this.defaultReduce.name}(${this.defaultReduce.parts.length})`\n : actions.length ? \"\\n \" + actions : \"\");\n }\n addActionInner(value, positions) {\n check: for (let i = 0; i < this.actions.length; i++) {\n let action = this.actions[i];\n if (action.term == value.term) {\n if (action.eq(value))\n return null;\n let fullPos = Pos.addOrigins(positions, this.set), actionFullPos = Pos.addOrigins(this.actionPositions[i], this.set);\n let conflicts = conflictsAt(fullPos), actionConflicts = conflictsAt(actionFullPos);\n let diff = compareRepeatPrec(fullPos, actionFullPos) || conflicts.precedence - actionConflicts.precedence;\n if (diff > 0) { // Drop the existing action\n this.actions.splice(i, 1);\n this.actionPositions.splice(i, 1);\n i--;\n continue check;\n }\n else if (diff < 0) { // Drop this one\n return null;\n }\n else if (conflicts.ambigGroups.some(g => actionConflicts.ambigGroups.includes(g))) { // Explicitly allowed ambiguity\n continue check;\n }\n else { // Not resolved\n return action;\n }\n }\n }\n this.actions.push(value);\n this.actionPositions.push(positions);\n return null;\n }\n addAction(value, positions, conflicts) {\n let conflict = this.addActionInner(value, positions);\n if (conflict) {\n let conflictPos = this.actionPositions[this.actions.indexOf(conflict)][0];\n let rules = [positions[0].rule.name, conflictPos.rule.name];\n if (conflicts.some(c => c.rules.some(r => rules.includes(r))))\n return;\n let error;\n if (conflict instanceof Shift)\n error = `shift/reduce conflict between\\n ${conflictPos}\\nand\\n ${positions[0].rule}`;\n else\n error = `reduce/reduce conflict between\\n ${conflictPos.rule}\\nand\\n ${positions[0].rule}`;\n error += `\\nWith input:\\n ${positions[0].trail(70)} · ${value.term} …`;\n error += findConflictOrigin(conflictPos, positions[0]);\n conflicts.push(new Conflict(error, rules));\n }\n }\n getGoto(term) {\n return this.goto.find(a => a.term == term);\n }\n hasSet(set) {\n return eqSet(this.set, set);\n }\n actionsByTerm() {\n let result = this._actionsByTerm;\n if (!result) {\n this._actionsByTerm = result = Object.create(null);\n for (let action of this.actions)\n (result[action.term.id] || (result[action.term.id] = [])).push(action);\n }\n return result;\n }\n finish() {\n if (this.actions.length) {\n let first = this.actions[0];\n if (first instanceof Reduce) {\n let { rule } = first;\n if (this.actions.every(a => a instanceof Reduce && a.rule.sameReduce(rule)))\n this.defaultReduce = rule;\n }\n }\n this.actions.sort((a, b) => a.cmp(b));\n this.goto.sort((a, b) => a.cmp(b));\n }\n eq(other) {\n let dThis = this.defaultReduce, dOther = other.defaultReduce;\n if (dThis || dOther)\n return dThis && dOther ? dThis.sameReduce(dOther) : false;\n return this.skip == other.skip &&\n this.tokenGroup == other.tokenGroup &&\n eqSet(this.actions, other.actions) &&\n eqSet(this.goto, other.goto);\n }\n}\nfunction closure(set, first) {\n let added = [], redo = [];\n function addFor(name, ahead, ambigAhead, skipAhead, via) {\n for (let rule of name.rules) {\n let add = added.find(a => a.rule == rule);\n if (!add) {\n let existing = set.find(p => p.pos == 0 && p.rule == rule);\n add = existing ? new Pos(rule, 0, existing.ahead.slice(), existing.ambigAhead, existing.skipAhead, existing.via)\n : new Pos(rule, 0, [], none$1, skipAhead, via);\n added.push(add);\n }\n if (add.skipAhead != skipAhead)\n throw new GenError(\"Inconsistent skip sets after \" + via.trail());\n add.ambigAhead = union(add.ambigAhead, ambigAhead);\n for (let term of ahead)\n if (!add.ahead.includes(term)) {\n add.ahead.push(term);\n if (add.rule.parts.length && !add.rule.parts[0].terminal)\n addTo(add, redo);\n }\n }\n }\n for (let pos of set) {\n let next = pos.next;\n if (next && !next.terminal)\n addFor(next, termsAhead(pos.rule, pos.pos, pos.ahead, first), pos.conflicts(pos.pos + 1).ambigGroups, pos.pos == pos.rule.parts.length - 1 ? pos.skipAhead : pos.rule.skip, pos);\n }\n while (redo.length) {\n let add = redo.pop();\n addFor(add.rule.parts[0], termsAhead(add.rule, 0, add.ahead, first), union(add.rule.conflicts[1].ambigGroups, add.rule.parts.length == 1 ? add.ambigAhead : none$1), add.rule.parts.length == 1 ? add.skipAhead : add.rule.skip, add);\n }\n let result = set.slice();\n for (let add of added) {\n add.ahead.sort((a, b) => a.hash - b.hash);\n add.finish();\n let origIndex = set.findIndex(p => p.pos == 0 && p.rule == add.rule);\n if (origIndex > -1)\n result[origIndex] = add;\n else\n result.push(add);\n }\n return result.sort((a, b) => a.cmp(b));\n}\nfunction addTo(value, array) {\n if (!array.includes(value))\n array.push(value);\n}\nfunction computeFirstSets(terms) {\n let table = Object.create(null);\n for (let t of terms.terms)\n if (!t.terminal)\n table[t.name] = [];\n for (;;) {\n let change = false;\n for (let nt of terms.terms)\n if (!nt.terminal)\n for (let rule of nt.rules) {\n let set = table[nt.name];\n let found = false, startLen = set.length;\n for (let part of rule.parts) {\n found = true;\n if (part.terminal) {\n addTo(part, set);\n }\n else {\n for (let t of table[part.name]) {\n if (t == null)\n found = false;\n else\n addTo(t, set);\n }\n }\n if (found)\n break;\n }\n if (!found)\n addTo(null, set);\n if (set.length > startLen)\n change = true;\n }\n if (!change)\n return table;\n }\n}\nclass Core {\n constructor(set, state) {\n this.set = set;\n this.state = state;\n }\n}\nclass Conflict {\n constructor(error, rules) {\n this.error = error;\n this.rules = rules;\n }\n}\nfunction findConflictOrigin(a, b) {\n if (a.eqSimple(b))\n return \"\";\n function via(root, start) {\n let hist = [];\n for (let p = start.via; !p.eqSimple(root); p = p.via)\n hist.push(p);\n if (!hist.length)\n return \"\";\n hist.unshift(start);\n return hist.reverse().map((p, i) => \"\\n\" + \" \".repeat(i + 1) + (p == start ? \"\" : \"via \") + p).join(\"\");\n }\n for (let p = a; p; p = p.via)\n for (let p2 = b; p2; p2 = p2.via) {\n if (p.eqSimple(p2))\n return \"\\nShared origin: \" + p + via(p, a) + via(p, b);\n }\n return \"\";\n}\n// Builds a full LR(1) automaton\nfunction buildFullAutomaton(terms, startTerms, first) {\n let states = [], statesBySetHash = {};\n let cores = {};\n let t0 = Date.now();\n function getState(core, top) {\n if (core.length == 0)\n return null;\n let coreHash = hashPositions(core), byHash = cores[coreHash];\n let skip;\n for (let pos of core) {\n if (!skip)\n skip = pos.skip;\n else if (skip != pos.skip)\n throw new GenError(\"Inconsistent skip sets after \" + pos.trail());\n }\n if (byHash)\n for (let known of byHash)\n if (eqSet(core, known.set)) {\n if (known.state.skip != skip)\n throw new GenError(\"Inconsistent skip sets after \" + known.set[0].trail());\n return known.state;\n }\n let set = closure(core, first);\n let hash = hashPositions(set), forHash = statesBySetHash[hash] || (statesBySetHash[hash] = []);\n let found;\n if (!top)\n for (let state of forHash)\n if (state.hasSet(set))\n found = state;\n if (!found) {\n found = new State(states.length, set, 0, skip, hash, top);\n forHash.push(found);\n states.push(found);\n if (timing && states.length % 500 == 0)\n console.log(`${states.length} states after ${((Date.now() - t0) / 1000).toFixed(2)}s`);\n }\n (cores[coreHash] || (cores[coreHash] = [])).push(new Core(core, found));\n return found;\n }\n for (const startTerm of startTerms) {\n const startSkip = startTerm.rules.length ? startTerm.rules[0].skip : terms.names[\"%noskip\"];\n getState(startTerm.rules.map(rule => new Pos(rule, 0, [terms.eof], none$1, startSkip, null).finish()), startTerm);\n }\n let conflicts = [];\n for (let filled = 0; filled < states.length; filled++) {\n let state = states[filled];\n let byTerm = [], byTermPos = [], atEnd = [];\n for (let pos of state.set) {\n if (pos.pos == pos.rule.parts.length) {\n if (!pos.rule.name.top)\n atEnd.push(pos);\n }\n else {\n let next = pos.rule.parts[pos.pos];\n let index = byTerm.indexOf(next);\n if (index < 0) {\n byTerm.push(next);\n byTermPos.push([pos]);\n }\n else {\n byTermPos[index].push(pos);\n }\n }\n }\n for (let i = 0; i < byTerm.length; i++) {\n let term = byTerm[i], positions = byTermPos[i].map(p => p.advance());\n if (term.terminal) {\n let set = applyCut(positions);\n let next = getState(set);\n if (next)\n state.addAction(new Shift(term, next), byTermPos[i], conflicts);\n }\n else {\n let goto = getState(positions);\n if (goto)\n state.goto.push(new Shift(term, goto));\n }\n }\n let replaced = false;\n for (let pos of atEnd)\n for (let ahead of pos.ahead) {\n let count = state.actions.length;\n state.addAction(new Reduce(ahead, pos.rule), [pos], conflicts);\n if (state.actions.length == count)\n replaced = true;\n }\n // If some actions were replaced by others, double-check whether\n // goto entries are now superfluous (for example, in an operator\n // precedence-related state that has a shift for `*` but only a\n // reduce for `+`, we don't need a goto entry for rules that start\n // with `+`)\n if (replaced)\n for (let i = 0; i < state.goto.length; i++) {\n let start = first[state.goto[i].term.name];\n if (!start.some(term => state.actions.some(a => a.term == term && (a instanceof Shift))))\n state.goto.splice(i--, 1);\n }\n }\n if (conflicts.length)\n throw new GenError(conflicts.map(c => c.error).join(\"\\n\\n\"));\n // Resolve alwaysReduce and sort actions\n for (let state of states)\n state.finish();\n if (timing)\n console.log(`${states.length} states total.`);\n return states;\n}\nfunction applyCut(set) {\n let found = null, cut = 1;\n for (let pos of set) {\n let value = pos.rule.conflicts[pos.pos - 1].cut;\n if (value < cut)\n continue;\n if (!found || value > cut) {\n cut = value;\n found = [];\n }\n found.push(pos);\n }\n return found || set;\n}\n// Verify that there are no conflicting actions or goto entries in the\n// two given states (using the state ID remapping provided in mapping)\nfunction canMerge(a, b, mapping) {\n // If a goto for the same term differs, that makes the states\n // incompatible\n for (let goto of a.goto)\n for (let other of b.goto) {\n if (goto.term == other.term && mapping[goto.target.id] != mapping[other.target.id])\n return false;\n }\n // If there is an action where a conflicting action exists in the\n // other state, the merge is only allowed when both states have the\n // exact same set of actions for this term.\n let byTerm = b.actionsByTerm();\n for (let action of a.actions) {\n let setB = byTerm[action.term.id];\n if (setB && setB.some(other => !other.matches(action, mapping))) {\n if (setB.length == 1)\n return false;\n let setA = a.actionsByTerm()[action.term.id];\n if (setA.length != setB.length || setA.some(a1 => !setB.some(a2 => a1.matches(a2, mapping))))\n return false;\n }\n }\n return true;\n}\nfunction mergeStates(states, mapping) {\n let newStates = [];\n for (let state of states) {\n let newID = mapping[state.id];\n if (!newStates[newID]) {\n newStates[newID] = new State(newID, state.set, 0, state.skip, state.hash, state.startRule);\n newStates[newID].tokenGroup = state.tokenGroup;\n newStates[newID].defaultReduce = state.defaultReduce;\n }\n }\n for (let state of states) {\n let newID = mapping[state.id], target = newStates[newID];\n target.flags |= state.flags;\n for (let i = 0; i < state.actions.length; i++) {\n let action = state.actions[i].map(mapping, newStates);\n if (!target.actions.some(a => a.eq(action))) {\n target.actions.push(action);\n target.actionPositions.push(state.actionPositions[i]);\n }\n }\n for (let goto of state.goto) {\n let mapped = goto.map(mapping, newStates);\n if (!target.goto.some(g => g.eq(mapped)))\n target.goto.push(mapped);\n }\n }\n return newStates;\n}\nclass Group {\n constructor(origin, member) {\n this.origin = origin;\n this.members = [member];\n }\n}\nfunction samePosSet(a, b) {\n if (a.length != b.length)\n return false;\n for (let i = 0; i < a.length; i++)\n if (!a[i].eqSimple(b[i]))\n return false;\n return true;\n}\n// Collapse an LR(1) automaton to an LALR-like automaton\nfunction collapseAutomaton(states) {\n let mapping = [], groups = [];\n assignGroups: for (let i = 0; i < states.length; i++) {\n let state = states[i];\n if (!state.startRule)\n for (let j = 0; j < groups.length; j++) {\n let group = groups[j], other = states[group.members[0]];\n if (state.tokenGroup == other.tokenGroup &&\n state.skip == other.skip &&\n !other.startRule &&\n samePosSet(state.set, other.set)) {\n group.members.push(i);\n mapping.push(j);\n continue assignGroups;\n }\n }\n mapping.push(groups.length);\n groups.push(new Group(groups.length, i));\n }\n function spill(groupIndex, index) {\n let group = groups[groupIndex], state = states[group.members[index]];\n let pop = group.members.pop();\n if (index != group.members.length)\n group.members[index] = pop;\n for (let i = groupIndex + 1; i < groups.length; i++) {\n mapping[state.id] = i;\n if (groups[i].origin == group.origin &&\n groups[i].members.every(id => canMerge(state, states[id], mapping))) {\n groups[i].members.push(state.id);\n return;\n }\n }\n mapping[state.id] = groups.length;\n groups.push(new Group(group.origin, state.id));\n }\n for (let pass = 1;; pass++) {\n let conflicts = false, t0 = Date.now();\n for (let g = 0, startLen = groups.length; g < startLen; g++) {\n let group = groups[g];\n for (let i = 0; i < group.members.length - 1; i++) {\n for (let j = i + 1; j < group.members.length; j++) {\n let idA = group.members[i], idB = group.members[j];\n if (!canMerge(states[idA], states[idB], mapping)) {\n conflicts = true;\n spill(g, j--);\n }\n }\n }\n }\n if (timing)\n console.log(`Collapse pass ${pass}${conflicts ? `` : `, done`} (${((Date.now() - t0) / 1000).toFixed(2)}s)`);\n if (!conflicts)\n return mergeStates(states, mapping);\n }\n}\nfunction mergeIdentical(states) {\n for (let pass = 1;; pass++) {\n let mapping = [], didMerge = false, t0 = Date.now();\n let newStates = [];\n // Find states that either have the same alwaysReduce or the same\n // actions, and merge them.\n for (let i = 0; i < states.length; i++) {\n let state = states[i];\n let match = newStates.findIndex(s => state.eq(s));\n if (match < 0) {\n mapping[i] = newStates.length;\n newStates.push(state);\n }\n else {\n mapping[i] = match;\n didMerge = true;\n let other = newStates[match], add = null;\n for (let pos of state.set)\n if (!other.set.some(p => p.eqSimple(pos)))\n (add || (add = [])).push(pos);\n if (add)\n other.set = add.concat(other.set).sort((a, b) => a.cmp(b));\n }\n }\n if (timing)\n console.log(`Merge identical pass ${pass}${didMerge ? \"\" : \", done\"} (${((Date.now() - t0) / 1000).toFixed(2)}s)`);\n if (!didMerge)\n return states;\n // Make sure actions point at merged state objects\n for (let state of newStates)\n if (!state.defaultReduce) {\n state.actions = state.actions.map(a => a.map(mapping, newStates));\n state.goto = state.goto.map(a => a.map(mapping, newStates));\n }\n // Renumber ids\n for (let i = 0; i < newStates.length; i++)\n newStates[i].id = i;\n states = newStates;\n }\n}\nconst none$1 = [];\nfunction finishAutomaton(full) {\n return mergeIdentical(collapseAutomaton(full));\n}\n\n// Encode numbers as groups of printable ascii characters\n//\n// - 0xffff, which is often used as placeholder, is encoded as \"~\"\n//\n// - The characters from \" \" (32) to \"}\" (125), excluding '\"' and\n// \"\\\\\", indicate values from 0 to 92\n//\n// - The first bit in a 'digit' is used to indicate whether this is\n// the end of a number.\n//\n// - That leaves 46 other values, which are actually significant.\n//\n// - The digits in a number are ordered from high to low significance.\nfunction digitToChar(digit) {\n let ch = digit + 32 /* Encode.Start */;\n if (ch >= 34 /* Encode.Gap1 */)\n ch++;\n if (ch >= 92 /* Encode.Gap2 */)\n ch++;\n return String.fromCharCode(ch);\n}\nfunction encode(value, max = 0xffff) {\n if (value > max)\n throw new Error(\"Trying to encode a number that's too big: \" + value);\n if (value == 65535 /* Encode.BigVal */)\n return String.fromCharCode(126 /* Encode.BigValCode */);\n let result = \"\";\n for (let first = 46 /* Encode.Base */;; first = 0) {\n let low = value % 46 /* Encode.Base */, rest = value - low;\n result = digitToChar(low + first) + result;\n if (rest == 0)\n break;\n value = rest / 46 /* Encode.Base */;\n }\n return result;\n}\nfunction encodeArray(values, max = 0xffff) {\n let result = '\"' + encode(values.length, 0xffffffff);\n for (let i = 0; i < values.length; i++)\n result += encode(values[i], max);\n result += '\"';\n return result;\n}\n\nconst none = [];\nclass Parts {\n constructor(terms, conflicts) {\n this.terms = terms;\n this.conflicts = conflicts;\n }\n concat(other) {\n if (this == Parts.none)\n return other;\n if (other == Parts.none)\n return this;\n let conflicts = null;\n if (this.conflicts || other.conflicts) {\n conflicts = this.conflicts ? this.conflicts.slice() : this.ensureConflicts();\n let otherConflicts = other.ensureConflicts();\n conflicts[conflicts.length - 1] = conflicts[conflicts.length - 1].join(otherConflicts[0]);\n for (let i = 1; i < otherConflicts.length; i++)\n conflicts.push(otherConflicts[i]);\n }\n return new Parts(this.terms.concat(other.terms), conflicts);\n }\n withConflicts(pos, conflicts) {\n if (conflicts == Conflicts.none)\n return this;\n let array = this.conflicts ? this.conflicts.slice() : this.ensureConflicts();\n array[pos] = array[pos].join(conflicts);\n return new Parts(this.terms, array);\n }\n ensureConflicts() {\n if (this.conflicts)\n return this.conflicts;\n let empty = [];\n for (let i = 0; i <= this.terms.length; i++)\n empty.push(Conflicts.none);\n return empty;\n }\n}\nParts.none = new Parts(none, null);\nfunction p(...terms) { return new Parts(terms, null); }\nclass BuiltRule {\n constructor(id, args, term) {\n this.id = id;\n this.args = args;\n this.term = term;\n }\n matches(expr) {\n return this.id == expr.id.name && exprsEq(expr.args, this.args);\n }\n matchesRepeat(expr) {\n return this.id == \"+\" && exprEq(expr.expr, this.args[0]);\n }\n}\nclass Builder {\n constructor(text, options) {\n this.options = options;\n this.terms = new TermSet;\n this.specialized = Object.create(null);\n this.tokenOrigins = Object.create(null);\n this.rules = [];\n this.built = [];\n this.ruleNames = Object.create(null);\n this.namespaces = Object.create(null);\n this.namedTerms = Object.create(null);\n this.termTable = Object.create(null);\n this.knownProps = Object.create(null);\n this.dynamicRulePrecedences = [];\n this.definedGroups = [];\n this.astRules = [];\n this.currentSkip = [];\n time(\"Parse\", () => {\n this.input = new Input(text, options.fileName);\n this.ast = this.input.parse();\n });\n let NP = NodeProp;\n for (let prop in NP) {\n if (NP[prop] instanceof NodeProp && !NP[prop].perNode)\n this.knownProps[prop] = { prop: NP[prop], source: { name: prop, from: null } };\n }\n for (let prop of this.ast.externalProps) {\n this.knownProps[prop.id.name] = {\n prop: this.options.externalProp ? this.options.externalProp(prop.id.name) : new NodeProp(),\n source: { name: prop.externalID.name, from: prop.source }\n };\n }\n this.dialects = this.ast.dialects.map(d => d.name);\n this.tokens = new MainTokenSet(this, this.ast.tokens);\n this.localTokens = this.ast.localTokens.map(g => new LocalTokenSet(this, g));\n this.externalTokens = this.ast.externalTokens.map(ext => new ExternalTokenSet(this, ext));\n this.externalSpecializers = this.ast.externalSpecializers.map(decl => new ExternalSpecializer(this, decl));\n time(\"Build rules\", () => {\n let noSkip = this.newName(\"%noskip\", true);\n this.defineRule(noSkip, []);\n let mainSkip = this.ast.mainSkip ? this.newName(\"%mainskip\", true) : noSkip;\n let scopedSkip = [], topRules = [];\n for (let rule of this.ast.rules)\n this.astRules.push({ skip: mainSkip, rule });\n for (let rule of this.ast.topRules)\n topRules.push({ skip: mainSkip, rule });\n for (let scoped of this.ast.scopedSkip) {\n let skip = noSkip, found = this.ast.scopedSkip.findIndex((sc, i) => i < scopedSkip.length && exprEq(sc.expr, scoped.expr));\n if (found > -1)\n skip = scopedSkip[found];\n else if (this.ast.mainSkip && exprEq(scoped.expr, this.ast.mainSkip))\n skip = mainSkip;\n else if (!isEmpty(scoped.expr))\n skip = this.newName(\"%skip\", true);\n scopedSkip.push(skip);\n for (let rule of scoped.rules)\n this.astRules.push({ skip, rule });\n for (let rule of scoped.topRules)\n topRules.push({ skip, rule });\n }\n for (let { rule } of this.astRules) {\n this.unique(rule.id);\n }\n this.currentSkip.push(noSkip);\n this.skipRules = mainSkip == noSkip ? [mainSkip] : [noSkip, mainSkip];\n if (mainSkip != noSkip)\n this.defineRule(mainSkip, this.normalizeExpr(this.ast.mainSkip));\n for (let i = 0; i < this.ast.scopedSkip.length; i++) {\n let skip = scopedSkip[i];\n if (!this.skipRules.includes(skip)) {\n this.skipRules.push(skip);\n if (skip != noSkip)\n this.defineRule(skip, this.normalizeExpr(this.ast.scopedSkip[i].expr));\n }\n }\n this.currentSkip.pop();\n for (let { rule, skip } of topRules.sort((a, b) => a.rule.start - b.rule.start)) {\n this.unique(rule.id);\n this.used(rule.id.name);\n this.currentSkip.push(skip);\n let { name, props } = this.nodeInfo(rule.props, \"a\", rule.id.name, none, none, rule.expr);\n let term = this.terms.makeTop(name, props);\n this.namedTerms[name] = term;\n this.defineRule(term, this.normalizeExpr(rule.expr));\n this.currentSkip.pop();\n }\n for (let ext of this.externalSpecializers)\n ext.finish();\n for (let { skip, rule } of this.astRules) {\n if (this.ruleNames[rule.id.name] && isExported(rule) && !rule.params.length) {\n this.buildRule(rule, [], skip, false);\n if (rule.expr instanceof SequenceExpression && rule.expr.exprs.length == 0)\n this.used(rule.id.name);\n }\n }\n });\n for (let name in this.ruleNames) {\n let value = this.ruleNames[name];\n if (value)\n this.warn(`Unused rule '${value.name}'`, value.start);\n }\n this.tokens.takePrecedences();\n this.tokens.takeConflicts();\n for (let lt of this.localTokens)\n lt.takePrecedences();\n for (let { name, group, rule } of this.definedGroups)\n this.defineGroup(name, group, rule);\n this.checkGroups();\n }\n unique(id) {\n if (id.name in this.ruleNames)\n this.raise(`Duplicate definition of rule '${id.name}'`, id.start);\n this.ruleNames[id.name] = id;\n }\n used(name) {\n this.ruleNames[name] = null;\n }\n newName(base, nodeName = null, props = {}) {\n for (let i = nodeName ? 0 : 1;; i++) {\n let name = i ? `${base}-${i}` : base;\n if (!this.terms.names[name])\n return this.terms.makeNonTerminal(name, nodeName === true ? null : nodeName, props);\n }\n }\n prepareParser() {\n let rules = time(\"Simplify rules\", () => simplifyRules(this.rules, [\n ...this.skipRules,\n ...this.terms.tops\n ]));\n let { nodeTypes, names: termNames, minRepeatTerm, maxTerm } = this.terms.finish(rules);\n for (let prop in this.namedTerms)\n this.termTable[prop] = this.namedTerms[prop].id;\n if (/\\bgrammar\\b/.test(verbose))\n console.log(rules.join(\"\\n\"));\n let startTerms = this.terms.tops.slice();\n let first = computeFirstSets(this.terms);\n let skipInfo = this.skipRules.map((name, id) => {\n let skip = [], startTokens = [], rules = [];\n for (let rule of name.rules) {\n if (!rule.parts.length)\n continue;\n let start = rule.parts[0];\n for (let t of start.terminal ? [start] : first[start.name] || [])\n if (!startTokens.includes(t))\n startTokens.push(t);\n if (start.terminal && rule.parts.length == 1 && !rules.some(r => r != rule && r.parts[0] == start))\n skip.push(start);\n else\n rules.push(rule);\n }\n name.rules = rules;\n if (rules.length)\n startTerms.push(name);\n return { skip, rule: rules.length ? name : null, startTokens, id };\n });\n let fullTable = time(\"Build full automaton\", () => buildFullAutomaton(this.terms, startTerms, first));\n let localTokens = this.localTokens\n .map((grp, i) => grp.buildLocalGroup(fullTable, skipInfo, i));\n let { tokenGroups, tokenPrec, tokenData } = time(\"Build token groups\", () => this.tokens.buildTokenGroups(fullTable, skipInfo, localTokens.length));\n let table = time(\"Finish automaton\", () => finishAutomaton(fullTable));\n let skipState = findSkipStates(table, this.terms.tops);\n if (/\\blr\\b/.test(verbose))\n console.log(table.join(\"\\n\"));\n let specialized = [];\n for (let ext of this.externalSpecializers)\n specialized.push(ext);\n for (let name in this.specialized)\n specialized.push({ token: this.terms.names[name], table: buildSpecializeTable(this.specialized[name]) });\n let tokStart = (tokenizer) => {\n if (tokenizer instanceof ExternalTokenSet)\n return tokenizer.ast.start;\n return this.tokens.ast ? this.tokens.ast.start : -1;\n };\n let tokenizers = tokenGroups\n .concat(this.externalTokens)\n .sort((a, b) => tokStart(a) - tokStart(b))\n .concat(localTokens);\n let data = new DataBuilder;\n let skipData = skipInfo.map(info => {\n let actions = [];\n for (let term of info.skip)\n actions.push(term.id, 0, 262144 /* Action.StayFlag */ >> 16);\n if (info.rule) {\n let state = table.find(s => s.startRule == info.rule);\n for (let action of state.actions)\n actions.push(action.term.id, state.id, 131072 /* Action.GotoFlag */ >> 16);\n }\n actions.push(65535 /* Seq.End */, 0 /* Seq.Done */);\n return data.storeArray(actions);\n });\n let states = time(\"Finish states\", () => {\n let states = new Uint32Array(table.length * 6 /* ParseState.Size */);\n let forceReductions = this.computeForceReductions(table, skipInfo);\n let finishCx = new FinishStateContext(tokenizers, data, states, skipData, skipInfo, table, this);\n for (let s of table)\n finishCx.finish(s, skipState(s.id), forceReductions[s.id]);\n return states;\n });\n let dialects = Object.create(null);\n for (let i = 0; i < this.dialects.length; i++)\n dialects[this.dialects[i]] = data.storeArray((this.tokens.byDialect[i] || none).map(t => t.id).concat(65535 /* Seq.End */));\n let dynamicPrecedences = null;\n if (this.dynamicRulePrecedences.length) {\n dynamicPrecedences = Object.create(null);\n for (let { rule, prec } of this.dynamicRulePrecedences)\n dynamicPrecedences[rule.id] = prec;\n }\n let topRules = Object.create(null);\n for (let term of this.terms.tops)\n topRules[term.nodeName] = [table.find(state => state.startRule == term).id, term.id];\n let precTable = data.storeArray(tokenPrec.concat(65535 /* Seq.End */));\n let { nodeProps, skippedTypes } = this.gatherNodeProps(nodeTypes);\n return {\n states,\n stateData: data.finish(),\n goto: computeGotoTable(table),\n nodeNames: nodeTypes.filter(t => t.id < minRepeatTerm).map(t => t.nodeName).join(\" \"),\n nodeProps,\n skippedTypes,\n maxTerm,\n repeatNodeCount: nodeTypes.length - minRepeatTerm,\n tokenizers,\n tokenData,\n topRules,\n dialects,\n dynamicPrecedences,\n specialized,\n tokenPrec: precTable,\n termNames\n };\n }\n getParser() {\n let { states, stateData, goto, nodeNames, nodeProps: rawNodeProps, skippedTypes, maxTerm, repeatNodeCount, tokenizers, tokenData, topRules, dialects, dynamicPrecedences, specialized: rawSpecialized, tokenPrec, termNames } = this.prepareParser();\n let specialized = rawSpecialized.map(v => {\n if (v instanceof ExternalSpecializer) {\n let ext = this.options.externalSpecializer(v.ast.id.name, this.termTable);\n return {\n term: v.term.id,\n get: (value, stack) => (ext(value, stack) << 1) |\n (v.ast.type == \"extend\" ? 1 /* Specialize.Extend */ : 0 /* Specialize.Specialize */),\n external: ext,\n extend: v.ast.type == \"extend\"\n };\n }\n else {\n return { term: v.token.id, get: (value) => v.table[value] || -1 };\n }\n });\n return LRParser.deserialize({\n version: 14 /* File.Version */,\n states,\n stateData,\n goto,\n nodeNames,\n maxTerm,\n repeatNodeCount,\n nodeProps: rawNodeProps.map(({ prop, terms }) => [this.knownProps[prop].prop, ...terms]),\n propSources: !this.options.externalPropSource ? undefined\n : this.ast.externalPropSources.map(s => this.options.externalPropSource(s.id.name)),\n skippedNodes: skippedTypes,\n tokenData,\n tokenizers: tokenizers.map(tok => tok.create()),\n context: !this.ast.context ? undefined\n : typeof this.options.contextTracker == \"function\" ? this.options.contextTracker(this.termTable)\n : this.options.contextTracker,\n topRules,\n dialects,\n dynamicPrecedences,\n specialized,\n tokenPrec,\n termNames\n });\n }\n getParserFile() {\n let { states, stateData, goto, nodeNames, nodeProps: rawNodeProps, skippedTypes, maxTerm, repeatNodeCount, tokenizers: rawTokenizers, tokenData, topRules, dialects: rawDialects, dynamicPrecedences, specialized: rawSpecialized, tokenPrec, termNames } = this.prepareParser();\n let mod = this.options.moduleStyle || \"es\", ts = this.options.typeScript ? \": any\" : \"\";\n let gen = \"// This file was generated by lezer-generator. You probably shouldn't edit it.\\n\", head = gen;\n let imports = {}, imported = Object.create(null);\n let defined = Object.create(null);\n for (let word of KEYWORDS)\n defined[word] = true;\n let exportName = this.options.exportName || \"parser\";\n defined[exportName] = true;\n let getName = (prefix) => {\n for (let i = 0;; i++) {\n let id = prefix + (i ? \"_\" + i : \"\");\n if (!defined[id])\n return id;\n }\n };\n let importName = (name, source, prefix = name) => {\n let spec = name + \" from \" + source;\n if (imported[spec])\n return imported[spec];\n let src = JSON.stringify(source), varName = name;\n if (name in defined) {\n varName = getName(prefix);\n name += `${mod == \"cjs\" ? \":\" : \" as\"} ${varName}`;\n }\n defined[varName] = true;\n (imports[src] || (imports[src] = [])).push(name);\n return imported[spec] = varName;\n };\n let lrParser = importName(\"LRParser\", \"@lezer/lr\");\n let tokenizers = rawTokenizers.map(tok => tok.createSource(importName));\n let context = this.ast.context ? importName(this.ast.context.id.name, this.ast.context.source) : null;\n let nodeProps = rawNodeProps.map(({ prop, terms }) => {\n let { source } = this.knownProps[prop];\n let propID = source.from ? importName(source.name, source.from) : JSON.stringify(source.name);\n return `[${propID}, ${terms.map(serializePropValue).join(\",\")}]`;\n });\n function specializationTableString(table) {\n return \"{__proto__:null,\" + Object.keys(table).map(key => `${/\\W/.test(key) ? JSON.stringify(key) : key}:${table[key]}`)\n .join(\", \") + \"}\";\n }\n let specHead = \"\";\n let specialized = rawSpecialized.map(v => {\n if (v instanceof ExternalSpecializer) {\n let name = importName(v.ast.id.name, v.ast.source);\n return `{term: ${v.term.id}, get: (value${ts}, stack${ts}) => (${name}(value, stack) << 1)${v.ast.type == \"extend\" ? ` | ${1 /* Specialize.Extend */}` : ''}, external: ${name}${v.ast.type == \"extend\" ? ', extend: true' : ''}}`;\n }\n else {\n let tableName = getName(\"spec_\" + v.token.name.replace(/\\W/g, \"\"));\n defined[tableName] = true;\n specHead += `const ${tableName} = ${specializationTableString(v.table)}\\n`;\n return `{term: ${v.token.id}, get: (value${ts}) => ${tableName}[value] || -1}`;\n }\n });\n let propSources = this.ast.externalPropSources.map(s => importName(s.id.name, s.source));\n for (let source in imports) {\n if (mod == \"cjs\")\n head += `const {${imports[source].join(\", \")}} = require(${source})\\n`;\n else\n head += `import {${imports[source].join(\", \")}} from ${source}\\n`;\n }\n head += specHead;\n function serializePropValue(value) {\n return typeof value != \"string\" || /^(true|false|\\d+(\\.\\d+)?|\\.\\d+)$/.test(value) ? value : JSON.stringify(value);\n }\n let dialects = Object.keys(rawDialects).map(d => `${d}: ${rawDialects[d]}`);\n let parserStr = `${lrParser}.deserialize({\n version: ${14 /* File.Version */},\n states: ${encodeArray(states, 0xffffffff)},\n stateData: ${encodeArray(stateData)},\n goto: ${encodeArray(goto)},\n nodeNames: ${JSON.stringify(nodeNames)},\n maxTerm: ${maxTerm}${context ? `,\n context: ${context}` : \"\"}${nodeProps.length ? `,\n nodeProps: [\n ${nodeProps.join(\",\\n \")}\n ]` : \"\"}${propSources.length ? `,\n propSources: [${propSources.join()}]` : \"\"}${skippedTypes.length ? `,\n skippedNodes: ${JSON.stringify(skippedTypes)}` : \"\"},\n repeatNodeCount: ${repeatNodeCount},\n tokenData: ${encodeArray(tokenData)},\n tokenizers: [${tokenizers.join(\", \")}],\n topRules: ${JSON.stringify(topRules)}${dialects.length ? `,\n dialects: {${dialects.join(\", \")}}` : \"\"}${dynamicPrecedences ? `,\n dynamicPrecedences: ${JSON.stringify(dynamicPrecedences)}` : \"\"}${specialized.length ? `,\n specialized: [${specialized.join(\",\")}]` : \"\"},\n tokenPrec: ${tokenPrec}${this.options.includeNames ? `,\n termNames: ${JSON.stringify(termNames)}` : ''}\n})`;\n let terms = [];\n for (let name in this.termTable) {\n let id = name;\n if (KEYWORDS.includes(id))\n for (let i = 1;; i++) {\n id = \"_\".repeat(i) + name;\n if (!(id in this.termTable))\n break;\n }\n terms.push(`${id}${mod == \"cjs\" ? \":\" : \" =\"} ${this.termTable[name]}`);\n }\n for (let id = 0; id < this.dialects.length; id++)\n terms.push(`Dialect_${this.dialects[id]}${mod == \"cjs\" ? \":\" : \" =\"} ${id}`);\n return {\n parser: head + (mod == \"cjs\" ? `exports.${exportName} = ${parserStr}\\n` : `export const ${exportName} = ${parserStr}\\n`),\n terms: mod == \"cjs\" ? `${gen}module.exports = {\\n ${terms.join(\",\\n \")}\\n}`\n : `${gen}export const\\n ${terms.join(\",\\n \")}\\n`\n };\n }\n gatherNonSkippedNodes() {\n let seen = Object.create(null);\n let work = [];\n let add = (term) => {\n if (!seen[term.id]) {\n seen[term.id] = true;\n work.push(term);\n }\n };\n this.terms.tops.forEach(add);\n for (let i = 0; i < work.length; i++) {\n for (let rule of work[i].rules)\n for (let part of rule.parts)\n add(part);\n }\n return seen;\n }\n gatherNodeProps(nodeTypes) {\n let notSkipped = this.gatherNonSkippedNodes(), skippedTypes = [];\n let nodeProps = [];\n for (let type of nodeTypes) {\n if (!notSkipped[type.id] && !type.error)\n skippedTypes.push(type.id);\n for (let prop in type.props) {\n let known = this.knownProps[prop];\n if (!known)\n throw new GenError(\"No known prop type for \" + prop);\n if (known.source.from == null && (known.source.name == \"repeated\" || known.source.name == \"error\"))\n continue;\n let rec = nodeProps.find(r => r.prop == prop);\n if (!rec)\n nodeProps.push(rec = { prop, values: {} });\n (rec.values[type.props[prop]] || (rec.values[type.props[prop]] = [])).push(type.id);\n }\n }\n return {\n nodeProps: nodeProps.map(({ prop, values }) => {\n let terms = [];\n for (let val in values) {\n let ids = values[val];\n if (ids.length == 1) {\n terms.push(ids[0], val);\n }\n else {\n terms.push(-ids.length);\n for (let id of ids)\n terms.push(id);\n terms.push(val);\n }\n }\n return { prop, terms };\n }),\n skippedTypes\n };\n }\n makeTerminal(name, tag, props) {\n return this.terms.makeTerminal(this.terms.uniqueName(name), tag, props);\n }\n computeForceReductions(states, skipInfo) {\n // This finds a forced reduction for every state, trying to guard\n // against cyclic forced reductions, where a given parse stack can\n // endlessly continue running forced reductions without making any\n // progress.\n //\n // This occurs with length-1 reductions. We never generate\n // length-0 reductions, and length-2+ reductions always shrink the\n // stack, so they are guaranteed to make progress.\n //\n // If there are states S1 and S2 whose forced reductions reduce\n // terms T1 and T2 respectively, both with a length of 1, _and_\n // there is a state S3, which has goto entries T1 -> S2, T2 -> S1,\n // you can get cyclic reductions. Of course, the cycle may also\n // contain more than two steps.\n let reductions = [];\n let candidates = [];\n // A map from terms to states that they are mapped to in goto\n // entries.\n let gotoEdges = Object.create(null);\n for (let state of states) {\n reductions.push(0);\n for (let edge of state.goto) {\n let array = gotoEdges[edge.term.id] || (gotoEdges[edge.term.id] = []);\n let found = array.find(o => o.target == edge.target.id);\n if (found)\n found.parents.push(state.id);\n else\n array.push({ parents: [state.id], target: edge.target.id });\n }\n candidates[state.id] = state.set.filter(pos => pos.pos > 0 && !pos.rule.name.top)\n .sort((a, b) => b.pos - a.pos || a.rule.parts.length - b.rule.parts.length);\n }\n // Mapping from state ids to terms that that state has a length-1\n // forced reduction for.\n let length1Reductions = Object.create(null);\n function createsCycle(term, startState, parents = null) {\n let edges = gotoEdges[term];\n if (!edges)\n return false;\n return edges.some(val => {\n let parentIntersection = parents ? parents.filter(id => val.parents.includes(id)) : val.parents;\n if (parentIntersection.length == 0)\n return false;\n if (val.target == startState)\n return true;\n let found = length1Reductions[val.target];\n return found != null && createsCycle(found, startState, parentIntersection);\n });\n }\n for (let state of states) {\n if (state.defaultReduce && state.defaultReduce.parts.length > 0) {\n reductions[state.id] = reduceAction(state.defaultReduce, skipInfo);\n if (state.defaultReduce.parts.length == 1)\n length1Reductions[state.id] = state.defaultReduce.name.id;\n }\n }\n // To avoid painting states that only have one potential forced\n // reduction into a corner, reduction assignment is done by\n // candidate size, starting with the states with fewer candidates.\n for (let setSize = 1;; setSize++) {\n let done = true;\n for (let state of states) {\n if (state.defaultReduce)\n continue;\n let set = candidates[state.id];\n if (set.length != setSize) {\n if (set.length > setSize)\n done = false;\n continue;\n }\n for (let pos of set) {\n if (pos.pos != 1 || !createsCycle(pos.rule.name.id, state.id)) {\n reductions[state.id] = reduceAction(pos.rule, skipInfo, pos.pos);\n if (pos.pos == 1)\n length1Reductions[state.id] = pos.rule.name.id;\n break;\n }\n }\n }\n if (done)\n break;\n }\n return reductions;\n }\n substituteArgs(expr, args, params) {\n if (args.length == 0)\n return expr;\n return expr.walk(expr => {\n let found;\n if (expr instanceof NameExpression &&\n (found = params.findIndex(p => p.name == expr.id.name)) > -1) {\n let arg = args[found];\n if (expr.args.length) {\n if (arg instanceof NameExpression && !arg.args.length)\n return new NameExpression(expr.start, arg.id, expr.args);\n this.raise(`Passing arguments to a parameter that already has arguments`, expr.start);\n }\n return arg;\n }\n else if (expr instanceof InlineRuleExpression) {\n let r = expr.rule, props = this.substituteArgsInProps(r.props, args, params);\n return props == r.props ? expr :\n new InlineRuleExpression(expr.start, new RuleDeclaration(r.start, r.id, props, r.params, r.expr));\n }\n else if (expr instanceof SpecializeExpression) {\n let props = this.substituteArgsInProps(expr.props, args, params);\n return props == expr.props ? expr :\n new SpecializeExpression(expr.start, expr.type, props, expr.token, expr.content);\n }\n return expr;\n });\n }\n substituteArgsInProps(props, args, params) {\n let substituteInValue = (value) => {\n let result = value;\n for (let i = 0; i < value.length; i++) {\n let part = value[i];\n if (!part.name)\n continue;\n let found = params.findIndex(p => p.name == part.name);\n if (found < 0)\n continue;\n if (result == value)\n result = value.slice();\n let expr = args[found];\n if (expr instanceof NameExpression && !expr.args.length)\n result[i] = new PropPart(part.start, expr.id.name, null);\n else if (expr instanceof LiteralExpression)\n result[i] = new PropPart(part.start, expr.value, null);\n else\n this.raise(`Trying to interpolate expression '${expr}' into a prop`, part.start);\n }\n return result;\n };\n let result = props;\n for (let i = 0; i < props.length; i++) {\n let prop = props[i], value = substituteInValue(prop.value);\n if (value != prop.value) {\n if (result == props)\n result = props.slice();\n result[i] = new Prop(prop.start, prop.at, prop.name, value);\n }\n }\n return result;\n }\n conflictsFor(markers) {\n let here = Conflicts.none, atEnd = Conflicts.none;\n for (let marker of markers) {\n if (marker.type == \"ambig\") {\n here = here.join(new Conflicts(0, [marker.id.name]));\n }\n else {\n let precs = this.ast.precedences;\n let index = precs ? precs.items.findIndex(item => item.id.name == marker.id.name) : -1;\n if (index < 0)\n this.raise(`Reference to unknown precedence: '${marker.id.name}'`, marker.id.start);\n let prec = precs.items[index], value = precs.items.length - index;\n if (prec.type == \"cut\") {\n here = here.join(new Conflicts(0, none, value));\n }\n else {\n here = here.join(new Conflicts(value << 2));\n atEnd = atEnd.join(new Conflicts((value << 2) + (prec.type == \"left\" ? 1 : prec.type == \"right\" ? -1 : 0)));\n }\n }\n }\n return { here, atEnd };\n }\n raise(message, pos = 1) {\n return this.input.raise(message, pos);\n }\n warn(message, pos = -1) {\n let msg = this.input.message(message, pos);\n if (this.options.warn)\n this.options.warn(msg);\n else\n console.warn(msg);\n }\n defineRule(name, choices) {\n let skip = this.currentSkip[this.currentSkip.length - 1];\n for (let choice of choices)\n this.rules.push(new Rule(name, choice.terms, choice.ensureConflicts(), skip));\n }\n resolve(expr) {\n for (let built of this.built)\n if (built.matches(expr))\n return [p(built.term)];\n let found = this.tokens.getToken(expr);\n if (found)\n return [p(found)];\n for (let grp of this.localTokens) {\n let found = grp.getToken(expr);\n if (found)\n return [p(found)];\n }\n for (let ext of this.externalTokens) {\n let found = ext.getToken(expr);\n if (found)\n return [p(found)];\n }\n for (let ext of this.externalSpecializers) {\n let found = ext.getToken(expr);\n if (found)\n return [p(found)];\n }\n let known = this.astRules.find(r => r.rule.id.name == expr.id.name);\n if (!known)\n return this.raise(`Reference to undefined rule '${expr.id.name}'`, expr.start);\n if (known.rule.params.length != expr.args.length)\n this.raise(`Wrong number or arguments for '${expr.id.name}'`, expr.start);\n this.used(known.rule.id.name);\n return [p(this.buildRule(known.rule, expr.args, known.skip))];\n }\n // For tree-balancing reasons, repeat expressions X+ have to be\n // normalized to something like\n //\n // R -> X | R R\n //\n // Returns the `R` term.\n normalizeRepeat(expr) {\n let known = this.built.find(b => b.matchesRepeat(expr));\n if (known)\n return p(known.term);\n let name = expr.expr.prec < expr.prec ? `(${expr.expr})+` : `${expr.expr}+`;\n let term = this.terms.makeRepeat(this.terms.uniqueName(name));\n this.built.push(new BuiltRule(\"+\", [expr.expr], term));\n this.defineRule(term, this.normalizeExpr(expr.expr).concat(p(term, term)));\n return p(term);\n }\n normalizeSequence(expr) {\n let result = expr.exprs.map(e => this.normalizeExpr(e));\n let builder = this;\n function complete(start, from, endConflicts) {\n let { here, atEnd } = builder.conflictsFor(expr.markers[from]);\n if (from == result.length)\n return [start.withConflicts(start.terms.length, here.join(endConflicts))];\n let choices = [];\n for (let choice of result[from]) {\n for (let full of complete(start.concat(choice).withConflicts(start.terms.length, here), from + 1, endConflicts.join(atEnd)))\n choices.push(full);\n }\n return choices;\n }\n return complete(Parts.none, 0, Conflicts.none);\n }\n normalizeExpr(expr) {\n if (expr instanceof RepeatExpression && expr.kind == \"?\") {\n return [Parts.none, ...this.normalizeExpr(expr.expr)];\n }\n else if (expr instanceof RepeatExpression) {\n let repeated = this.normalizeRepeat(expr);\n return expr.kind == \"+\" ? [repeated] : [Parts.none, repeated];\n }\n else if (expr instanceof ChoiceExpression) {\n return expr.exprs.reduce((o, e) => o.concat(this.normalizeExpr(e)), []);\n }\n else if (expr instanceof SequenceExpression) {\n return this.normalizeSequence(expr);\n }\n else if (expr instanceof LiteralExpression) {\n return [p(this.tokens.getLiteral(expr))];\n }\n else if (expr instanceof NameExpression) {\n return this.resolve(expr);\n }\n else if (expr instanceof SpecializeExpression) {\n return [p(this.resolveSpecialization(expr))];\n }\n else if (expr instanceof InlineRuleExpression) {\n return [p(this.buildRule(expr.rule, none, this.currentSkip[this.currentSkip.length - 1], true))];\n }\n else {\n return this.raise(`This type of expression ('${expr}') may not occur in non-token rules`, expr.start);\n }\n }\n buildRule(rule, args, skip, inline = false) {\n let expr = this.substituteArgs(rule.expr, args, rule.params);\n let { name: nodeName, props, dynamicPrec, inline: explicitInline, group, exported } = this.nodeInfo(rule.props || none, inline ? \"pg\" : \"pgi\", rule.id.name, args, rule.params, rule.expr);\n if (exported && rule.params.length)\n this.warn(`Can't export parameterized rules`, rule.start);\n if (exported && inline)\n this.warn(`Can't export inline rule`, rule.start);\n let name = this.newName(rule.id.name + (args.length ? \"<\" + args.join(\",\") + \">\" : \"\"), nodeName || true, props);\n if (explicitInline)\n name.inline = true;\n if (dynamicPrec)\n this.registerDynamicPrec(name, dynamicPrec);\n if ((name.nodeType || exported) && rule.params.length == 0) {\n if (!nodeName)\n name.preserve = true;\n if (!inline)\n this.namedTerms[exported || rule.id.name] = name;\n }\n if (!inline)\n this.built.push(new BuiltRule(rule.id.name, args, name));\n this.currentSkip.push(skip);\n this.defineRule(name, this.normalizeExpr(expr));\n this.currentSkip.pop();\n if (group)\n this.definedGroups.push({ name, group, rule });\n return name;\n }\n nodeInfo(props, \n // p for dynamic precedence, d for dialect, i for inline, g for group, a for disabling the ignore test for default name\n allow, defaultName = null, args = none, params = none, expr, defaultProps) {\n let result = {};\n let name = defaultName && (allow.indexOf(\"a\") > -1 || !ignored(defaultName)) && !/ /.test(defaultName) ? defaultName : null;\n let dialect = null, dynamicPrec = 0, inline = false, group = null, exported = null;\n for (let prop of props) {\n if (!prop.at) {\n if (!this.knownProps[prop.name]) {\n let builtin = [\"name\", \"dialect\", \"dynamicPrecedence\", \"export\", \"isGroup\"].includes(prop.name)\n ? ` (did you mean '@${prop.name}'?)` : \"\";\n this.raise(`Unknown prop name '${prop.name}'${builtin}`, prop.start);\n }\n result[prop.name] = this.finishProp(prop, args, params);\n }\n else if (prop.name == \"name\") {\n name = this.finishProp(prop, args, params);\n if (/ /.test(name))\n this.raise(`Node names cannot have spaces ('${name}')`, prop.start);\n }\n else if (prop.name == \"dialect\") {\n if (allow.indexOf(\"d\") < 0)\n this.raise(\"Can't specify a dialect on non-token rules\", props[0].start);\n if (prop.value.length != 1 && !prop.value[0].value)\n this.raise(\"The '@dialect' rule prop must hold a plain string value\");\n let dialectID = this.dialects.indexOf(prop.value[0].value);\n if (dialectID < 0)\n this.raise(`Unknown dialect '${prop.value[0].value}'`, prop.value[0].start);\n dialect = dialectID;\n }\n else if (prop.name == \"dynamicPrecedence\") {\n if (allow.indexOf(\"p\") < 0)\n this.raise(\"Dynamic precedence can only be specified on nonterminals\");\n if (prop.value.length != 1 || !/^-?(?:10|\\d)$/.test(prop.value[0].value))\n this.raise(\"The '@dynamicPrecedence' rule prop must hold an integer between -10 and 10\");\n dynamicPrec = +prop.value[0].value;\n }\n else if (prop.name == \"inline\") {\n if (prop.value.length)\n this.raise(\"'@inline' doesn't take a value\", prop.value[0].start);\n if (allow.indexOf(\"i\") < 0)\n this.raise(\"Inline can only be specified on nonterminals\");\n inline = true;\n }\n else if (prop.name == \"isGroup\") {\n if (allow.indexOf(\"g\") < 0)\n this.raise(\"'@isGroup' can only be specified on nonterminals\");\n group = prop.value.length ? this.finishProp(prop, args, params) : defaultName;\n }\n else if (prop.name == \"export\") {\n if (prop.value.length)\n exported = this.finishProp(prop, args, params);\n else\n exported = defaultName;\n }\n else {\n this.raise(`Unknown built-in prop name '@${prop.name}'`, prop.start);\n }\n }\n if (expr && this.ast.autoDelim && (name || hasProps(result))) {\n let delim = this.findDelimiters(expr);\n if (delim) {\n addToProp(delim[0], \"closedBy\", delim[1].nodeName);\n addToProp(delim[1], \"openedBy\", delim[0].nodeName);\n }\n }\n if (defaultProps && hasProps(defaultProps)) {\n for (let prop in defaultProps)\n if (!(prop in result))\n result[prop] = defaultProps[prop];\n }\n if (hasProps(result) && !name)\n this.raise(`Node has properties but no name`, props.length ? props[0].start : expr.start);\n if (inline && (hasProps(result) || dialect || dynamicPrec))\n this.raise(`Inline nodes can't have props, dynamic precedence, or a dialect`, props[0].start);\n if (inline && name)\n name = null;\n return { name, props: result, dialect, dynamicPrec, inline, group, exported };\n }\n finishProp(prop, args, params) {\n return prop.value.map(part => {\n if (part.value)\n return part.value;\n let pos = params.findIndex(param => param.name == part.name);\n if (pos < 0)\n this.raise(`Property refers to '${part.name}', but no parameter by that name is in scope`, part.start);\n let expr = args[pos];\n if (expr instanceof NameExpression && !expr.args.length)\n return expr.id.name;\n if (expr instanceof LiteralExpression)\n return expr.value;\n return this.raise(`Expression '${expr}' can not be used as part of a property value`, part.start);\n }).join(\"\");\n }\n resolveSpecialization(expr) {\n let type = expr.type;\n let { name, props, dialect } = this.nodeInfo(expr.props, \"d\");\n let terminal = this.normalizeExpr(expr.token);\n if (terminal.length != 1 || terminal[0].terms.length != 1 || !terminal[0].terms[0].terminal)\n this.raise(`The first argument to '${type}' must resolve to a token`, expr.token.start);\n let values;\n if (expr.content instanceof LiteralExpression)\n values = [expr.content.value];\n else if ((expr.content instanceof ChoiceExpression) && expr.content.exprs.every(e => e instanceof LiteralExpression))\n values = expr.content.exprs.map(expr => expr.value);\n else\n return this.raise(`The second argument to '${expr.type}' must be a literal or choice of literals`, expr.content.start);\n let term = terminal[0].terms[0], token = null;\n let table = this.specialized[term.name] || (this.specialized[term.name] = []);\n for (let value of values) {\n let known = table.find(sp => sp.value == value);\n if (known == null) {\n if (!token) {\n token = this.makeTerminal(term.name + \"/\" + JSON.stringify(value), name, props);\n if (dialect != null)\n (this.tokens.byDialect[dialect] || (this.tokens.byDialect[dialect] = [])).push(token);\n }\n table.push({ value, term: token, type, dialect, name });\n this.tokenOrigins[token.name] = { spec: term };\n }\n else {\n if (known.type != type)\n this.raise(`Conflicting specialization types for ${JSON.stringify(value)} of ${term.name} (${type} vs ${known.type})`, expr.start);\n if (known.dialect != dialect)\n this.raise(`Conflicting dialects for specialization ${JSON.stringify(value)} of ${term.name}`, expr.start);\n if (known.name != name)\n this.raise(`Conflicting names for specialization ${JSON.stringify(value)} of ${term.name}`, expr.start);\n if (token && known.term != token)\n this.raise(`Conflicting specialization tokens for ${JSON.stringify(value)} of ${term.name}`, expr.start);\n token = known.term;\n }\n }\n return token;\n }\n findDelimiters(expr) {\n if (!(expr instanceof SequenceExpression) || expr.exprs.length < 2)\n return null;\n let findToken = (expr) => {\n if (expr instanceof LiteralExpression)\n return { term: this.tokens.getLiteral(expr), str: expr.value };\n if (expr instanceof NameExpression && expr.args.length == 0) {\n let rule = this.ast.rules.find(r => r.id.name == expr.id.name);\n if (rule)\n return findToken(rule.expr);\n let token = this.tokens.rules.find(r => r.id.name == expr.id.name);\n if (token && token.expr instanceof LiteralExpression)\n return { term: this.tokens.getToken(expr), str: token.expr.value };\n }\n return null;\n };\n let lastToken = findToken(expr.exprs[expr.exprs.length - 1]);\n if (!lastToken || !lastToken.term.nodeName)\n return null;\n const brackets = [\"()\", \"[]\", \"{}\", \"<>\"];\n let bracket = brackets.find(b => lastToken.str.indexOf(b[1]) > -1 && lastToken.str.indexOf(b[0]) < 0);\n if (!bracket)\n return null;\n let firstToken = findToken(expr.exprs[0]);\n if (!firstToken || !firstToken.term.nodeName ||\n firstToken.str.indexOf(bracket[0]) < 0 || firstToken.str.indexOf(bracket[1]) > -1)\n return null;\n return [firstToken.term, lastToken.term];\n }\n registerDynamicPrec(term, prec) {\n this.dynamicRulePrecedences.push({ rule: term, prec });\n term.preserve = true;\n }\n defineGroup(rule, group, ast) {\n var _a;\n let recur = [];\n let getNamed = (rule) => {\n if (rule.nodeName)\n return [rule];\n if (recur.includes(rule))\n this.raise(`Rule '${ast.id.name}' cannot define a group because it contains a non-named recursive rule ('${rule.name}')`, ast.start);\n let result = [];\n recur.push(rule);\n for (let r of this.rules)\n if (r.name == rule) {\n let names = r.parts.map(getNamed).filter(x => x.length);\n if (names.length > 1)\n this.raise(`Rule '${ast.id.name}' cannot define a group because some choices produce multiple named nodes`, ast.start);\n if (names.length == 1)\n for (let n of names[0])\n result.push(n);\n }\n recur.pop();\n return result;\n };\n for (let name of getNamed(rule))\n name.props[\"group\"] = (((_a = name.props[\"group\"]) === null || _a === void 0 ? void 0 : _a.split(\" \")) || []).concat(group).sort().join(\" \");\n }\n checkGroups() {\n let groups = Object.create(null), nodeNames = Object.create(null);\n for (let term of this.terms.terms)\n if (term.nodeName) {\n nodeNames[term.nodeName] = true;\n if (term.props[\"group\"])\n for (let group of term.props[\"group\"].split(\" \")) {\n (groups[group] || (groups[group] = [])).push(term);\n }\n }\n let names = Object.keys(groups);\n for (let i = 0; i < names.length; i++) {\n let name = names[i], terms = groups[name];\n if (nodeNames[name])\n this.warn(`Group name '${name}' conflicts with a node of the same name`);\n for (let j = i + 1; j < names.length; j++) {\n let other = groups[names[j]];\n if (terms.some(t => other.includes(t)) &&\n (terms.length > other.length ? other.some(t => !terms.includes(t)) : terms.some(t => !other.includes(t))))\n this.warn(`Groups '${name}' and '${names[j]}' overlap without one being a superset of the other`);\n }\n }\n }\n}\nconst MinSharedActions = 5;\nclass FinishStateContext {\n constructor(tokenizers, data, stateArray, skipData, skipInfo, states, builder) {\n this.tokenizers = tokenizers;\n this.data = data;\n this.stateArray = stateArray;\n this.skipData = skipData;\n this.skipInfo = skipInfo;\n this.states = states;\n this.builder = builder;\n this.sharedActions = [];\n }\n findSharedActions(state) {\n if (state.actions.length < MinSharedActions)\n return null;\n let found = null;\n for (let shared of this.sharedActions) {\n if ((!found || shared.actions.length > found.actions.length) &&\n shared.actions.every(a => state.actions.some(b => b.eq(a))))\n found = shared;\n }\n if (found)\n return found;\n let max = null, scratch = [];\n for (let i = state.id + 1; i < this.states.length; i++) {\n let other = this.states[i], fill = 0;\n if (other.defaultReduce || other.actions.length < MinSharedActions)\n continue;\n for (let a of state.actions)\n for (let b of other.actions)\n if (a.eq(b))\n scratch[fill++] = a;\n if (fill >= MinSharedActions && (!max || max.length < fill)) {\n max = scratch;\n scratch = [];\n }\n }\n if (!max)\n return null;\n let result = { actions: max, addr: this.storeActions(max, -1, null) };\n this.sharedActions.push(result);\n return result;\n }\n storeActions(actions, skipReduce, shared) {\n if (skipReduce < 0 && shared && shared.actions.length == actions.length)\n return shared.addr;\n let data = [];\n for (let action of actions) {\n if (shared && shared.actions.some(a => a.eq(action)))\n continue;\n if (action instanceof Shift) {\n data.push(action.term.id, action.target.id, 0);\n }\n else {\n let code = reduceAction(action.rule, this.skipInfo);\n if (code != skipReduce)\n data.push(action.term.id, code & 65535 /* Action.ValueMask */, code >> 16);\n }\n }\n data.push(65535 /* Seq.End */);\n if (skipReduce > -1)\n data.push(2 /* Seq.Other */, skipReduce & 65535 /* Action.ValueMask */, skipReduce >> 16);\n else if (shared)\n data.push(1 /* Seq.Next */, shared.addr & 0xffff, shared.addr >> 16);\n else\n data.push(0 /* Seq.Done */);\n return this.data.storeArray(data);\n }\n finish(state, isSkip, forcedReduce) {\n let b = this.builder;\n let skipID = b.skipRules.indexOf(state.skip);\n let skipTable = this.skipData[skipID], skipTerms = this.skipInfo[skipID].startTokens;\n let defaultReduce = state.defaultReduce ? reduceAction(state.defaultReduce, this.skipInfo) : 0;\n let flags = isSkip ? 1 /* StateFlag.Skipped */ : 0;\n let skipReduce = -1, shared = null;\n if (defaultReduce == 0) {\n if (isSkip)\n for (const action of state.actions)\n if (action instanceof Reduce && action.term.eof)\n skipReduce = reduceAction(action.rule, this.skipInfo);\n if (skipReduce < 0)\n shared = this.findSharedActions(state);\n }\n if (state.set.some(p => p.rule.name.top && p.pos == p.rule.parts.length))\n flags |= 2 /* StateFlag.Accepting */;\n let external = [];\n for (let i = 0; i < state.actions.length + skipTerms.length; i++) {\n let term = i < state.actions.length ? state.actions[i].term : skipTerms[i - state.actions.length];\n for (;;) {\n let orig = b.tokenOrigins[term.name];\n if (orig && orig.spec) {\n term = orig.spec;\n continue;\n }\n if (orig && (orig.external instanceof ExternalTokenSet))\n addToSet(external, orig.external);\n break;\n }\n }\n let tokenizerMask = 0;\n for (let i = 0; i < this.tokenizers.length; i++) {\n let tok = this.tokenizers[i];\n if (external.includes(tok) || tok.groupID == state.tokenGroup)\n tokenizerMask |= (1 << i);\n }\n let base = state.id * 6 /* ParseState.Size */;\n this.stateArray[base + 0 /* ParseState.Flags */] = flags;\n this.stateArray[base + 1 /* ParseState.Actions */] = this.storeActions(defaultReduce ? none : state.actions, skipReduce, shared);\n this.stateArray[base + 2 /* ParseState.Skip */] = skipTable;\n this.stateArray[base + 3 /* ParseState.TokenizerMask */] = tokenizerMask;\n this.stateArray[base + 4 /* ParseState.DefaultReduce */] = defaultReduce;\n this.stateArray[base + 5 /* ParseState.ForcedReduce */] = forcedReduce;\n }\n}\nfunction addToProp(term, prop, value) {\n let cur = term.props[prop];\n if (!cur || cur.split(\" \").indexOf(value) < 0)\n term.props[prop] = cur ? cur + \" \" + value : value;\n}\nfunction buildSpecializeTable(spec) {\n let table = Object.create(null);\n for (let { value, term, type } of spec) {\n let code = type == \"specialize\" ? 0 /* Specialize.Specialize */ : 1 /* Specialize.Extend */;\n table[value] = (term.id << 1) | code;\n }\n return table;\n}\nfunction reduceAction(rule, skipInfo, depth = rule.parts.length) {\n return rule.name.id | 65536 /* Action.ReduceFlag */ |\n (rule.isRepeatWrap && depth == rule.parts.length ? 131072 /* Action.RepeatFlag */ : 0) |\n (skipInfo.some(i => i.rule == rule.name) ? 262144 /* Action.StayFlag */ : 0) |\n (depth << 19 /* Action.ReduceDepthShift */);\n}\nfunction findArray(data, value) {\n search: for (let i = 0;;) {\n let next = data.indexOf(value[0], i);\n if (next == -1 || next + value.length > data.length)\n break;\n for (let j = 1; j < value.length; j++) {\n if (value[j] != data[next + j]) {\n i = next + 1;\n continue search;\n }\n }\n return next;\n }\n return -1;\n}\nfunction findSkipStates(table, startRules) {\n let nonSkip = Object.create(null);\n let work = [];\n let add = (state) => {\n if (!nonSkip[state.id]) {\n nonSkip[state.id] = true;\n work.push(state);\n }\n };\n for (let state of table)\n if (state.startRule && startRules.includes(state.startRule))\n add(state);\n for (let i = 0; i < work.length; i++) {\n for (let a of work[i].actions)\n if (a instanceof Shift)\n add(a.target);\n for (let a of work[i].goto)\n add(a.target);\n }\n return (id) => !nonSkip[id];\n}\nclass DataBuilder {\n constructor() {\n this.data = [];\n }\n storeArray(data) {\n let found = findArray(this.data, data);\n if (found > -1)\n return found;\n let pos = this.data.length;\n for (let num of data)\n this.data.push(num);\n return pos;\n }\n finish() {\n return Uint16Array.from(this.data);\n }\n}\n// The goto table maps a start state + a term to a new state, and is\n// used to determine the new state when reducing. Because this allows\n// more more efficient representation and access, unlike the action\n// tables, the goto table is organized by term, with groups of start\n// states that map to a given end state enumerated for each term.\n// Since many terms only have a single valid goto target, this makes\n// it cheaper to look those up.\n//\n// (Unfortunately, though the standard LR parsing mechanism never\n// looks up invalid goto states, the incremental parsing mechanism\n// needs accurate goto information for a state/term pair, so we do\n// need to store state ids even for terms that have only one target.)\n//\n// - First comes the amount of terms in the table\n//\n// - Then, for each term, the offset of the term's data\n//\n// - At these offsets, there's a record for each target state\n//\n// - Such a record starts with the amount of start states that go to\n// this target state, shifted one to the left, with the first bit\n// only set if this is the last record for this term.\n//\n// - Then follows the target state id\n//\n// - And then the start state ids\nfunction computeGotoTable(states) {\n let goto = {};\n let maxTerm = 0;\n for (let state of states) {\n for (let entry of state.goto) {\n maxTerm = Math.max(entry.term.id, maxTerm);\n let set = goto[entry.term.id] || (goto[entry.term.id] = {});\n (set[entry.target.id] || (set[entry.target.id] = [])).push(state.id);\n }\n }\n let data = new DataBuilder;\n let index = [];\n let offset = maxTerm + 2; // Offset of the data, taking index size into account\n for (let term = 0; term <= maxTerm; term++) {\n let entries = goto[term];\n if (!entries) {\n index.push(1);\n continue;\n }\n let termTable = [];\n let keys = Object.keys(entries);\n for (let target of keys) {\n let list = entries[target];\n termTable.push((target == keys[keys.length - 1] ? 1 : 0) + (list.length << 1));\n termTable.push(+target);\n for (let source of list)\n termTable.push(source);\n }\n index.push(data.storeArray(termTable) + offset);\n }\n if (index.some(n => n > 0xffff))\n throw new GenError(\"Goto table too large\");\n return Uint16Array.from([maxTerm + 1, ...index, ...data.data]);\n}\nclass TokenGroup {\n constructor(tokens, groupID) {\n this.tokens = tokens;\n this.groupID = groupID;\n }\n create() { return this.groupID; }\n createSource() { return String(this.groupID); }\n}\nfunction addToSet(set, value) {\n if (!set.includes(value))\n set.push(value);\n}\nfunction buildTokenMasks(groups) {\n let masks = Object.create(null);\n for (let group of groups) {\n let groupMask = 1 << group.groupID;\n for (let term of group.tokens) {\n masks[term.id] = (masks[term.id] || 0) | groupMask;\n }\n }\n return masks;\n}\nclass TokenArg {\n constructor(name, expr, scope) {\n this.name = name;\n this.expr = expr;\n this.scope = scope;\n }\n}\nclass BuildingRule {\n constructor(name, start, to, args) {\n this.name = name;\n this.start = start;\n this.to = to;\n this.args = args;\n }\n}\nclass TokenSet {\n constructor(b, ast) {\n this.b = b;\n this.ast = ast;\n this.startState = new State$1;\n this.built = [];\n this.building = []; // Used for recursion check\n this.byDialect = Object.create(null);\n this.precedenceRelations = [];\n this.rules = ast ? ast.rules : none;\n for (let rule of this.rules)\n b.unique(rule.id);\n }\n getToken(expr) {\n for (let built of this.built)\n if (built.matches(expr))\n return built.term;\n let name = expr.id.name;\n let rule = this.rules.find(r => r.id.name == name);\n if (!rule)\n return null;\n let { name: nodeName, props, dialect, exported } = this.b.nodeInfo(rule.props, \"d\", name, expr.args, rule.params.length != expr.args.length ? none : rule.params);\n let term = this.b.makeTerminal(expr.toString(), nodeName, props);\n if (dialect != null)\n (this.byDialect[dialect] || (this.byDialect[dialect] = [])).push(term);\n if ((term.nodeType || exported) && rule.params.length == 0) {\n if (!term.nodeType)\n term.preserve = true;\n this.b.namedTerms[exported || name] = term;\n }\n this.buildRule(rule, expr, this.startState, new State$1([term]));\n this.built.push(new BuiltRule(name, expr.args, term));\n return term;\n }\n buildRule(rule, expr, from, to, args = none) {\n let name = expr.id.name;\n if (rule.params.length != expr.args.length)\n this.b.raise(`Incorrect number of arguments for token '${name}'`, expr.start);\n let building = this.building.find(b => b.name == name && exprsEq(expr.args, b.args));\n if (building) {\n if (building.to == to) {\n from.nullEdge(building.start);\n return;\n }\n let lastIndex = this.building.length - 1;\n while (this.building[lastIndex].name != name)\n lastIndex--;\n this.b.raise(`Invalid (non-tail) recursion in token rules: ${this.building.slice(lastIndex).map(b => b.name).join(\" -> \")}`, expr.start);\n }\n this.b.used(rule.id.name);\n let start = new State$1;\n from.nullEdge(start);\n this.building.push(new BuildingRule(name, start, to, expr.args));\n this.build(this.b.substituteArgs(rule.expr, expr.args, rule.params), start, to, expr.args.map((e, i) => new TokenArg(rule.params[i].name, e, args)));\n this.building.pop();\n }\n build(expr, from, to, args) {\n if (expr instanceof NameExpression) {\n let name = expr.id.name, arg = args.find(a => a.name == name);\n if (arg)\n return this.build(arg.expr, from, to, arg.scope);\n let rule;\n for (let i = 0, lt = this.b.localTokens; i <= lt.length; i++) {\n let set = i == lt.length ? this.b.tokens : lt[i];\n rule = set.rules.find(r => r.id.name == name);\n }\n if (!rule)\n return this.b.raise(`Reference to token rule '${expr.id.name}', which isn't found`, expr.start);\n this.buildRule(rule, expr, from, to, args);\n }\n else if (expr instanceof CharClass) {\n for (let [a, b] of CharClasses[expr.type])\n from.edge(a, b, to);\n }\n else if (expr instanceof ChoiceExpression) {\n for (let choice of expr.exprs)\n this.build(choice, from, to, args);\n }\n else if (isEmpty(expr)) {\n from.nullEdge(to);\n }\n else if (expr instanceof SequenceExpression) {\n let conflict = expr.markers.find(c => c.length > 0);\n if (conflict)\n this.b.raise(\"Conflict marker in token expression\", conflict[0].start);\n for (let i = 0; i < expr.exprs.length; i++) {\n let next = i == expr.exprs.length - 1 ? to : new State$1;\n this.build(expr.exprs[i], from, next, args);\n from = next;\n }\n }\n else if (expr instanceof RepeatExpression) {\n if (expr.kind == \"*\") {\n let loop = new State$1;\n from.nullEdge(loop);\n this.build(expr.expr, loop, loop, args);\n loop.nullEdge(to);\n }\n else if (expr.kind == \"+\") {\n let loop = new State$1;\n this.build(expr.expr, from, loop, args);\n this.build(expr.expr, loop, loop, args);\n loop.nullEdge(to);\n }\n else { // expr.kind == \"?\"\n from.nullEdge(to);\n this.build(expr.expr, from, to, args);\n }\n }\n else if (expr instanceof SetExpression) {\n for (let [a, b] of expr.inverted ? invertRanges(expr.ranges) : expr.ranges)\n rangeEdges(from, to, a, b);\n }\n else if (expr instanceof LiteralExpression) {\n for (let i = 0; i < expr.value.length; i++) {\n let ch = expr.value.charCodeAt(i);\n let next = i == expr.value.length - 1 ? to : new State$1;\n from.edge(ch, ch + 1, next);\n from = next;\n }\n }\n else if (expr instanceof AnyExpression) {\n let mid = new State$1;\n from.edge(0, 0xDC00, to);\n from.edge(0xDC00, MAX_CHAR + 1, to);\n from.edge(0xD800, 0xDC00, mid);\n mid.edge(0xDC00, 0xE000, to);\n }\n else {\n return this.b.raise(`Unrecognized expression type in token`, expr.start);\n }\n }\n takePrecedences() {\n let rel = this.precedenceRelations = [];\n if (this.ast)\n for (let group of this.ast.precedences) {\n let prev = [];\n for (let item of group.items) {\n let level = [];\n if (item instanceof NameExpression) {\n for (let built of this.built)\n if (item.args.length ? built.matches(item) : built.id == item.id.name)\n level.push(built.term);\n }\n else {\n let id = JSON.stringify(item.value), found = this.built.find(b => b.id == id);\n if (found)\n level.push(found.term);\n }\n if (!level.length)\n this.b.warn(`Precedence specified for unknown token ${item}`, item.start);\n for (let term of level)\n addRel(rel, term, prev);\n prev = prev.concat(level);\n }\n }\n }\n precededBy(a, b) {\n let found = this.precedenceRelations.find(r => r.term == a);\n return found && found.after.includes(b);\n }\n buildPrecTable(softConflicts) {\n let precTable = [], rel = this.precedenceRelations.slice();\n // Add entries for soft-conflicting tokens that are in the\n // precedence table, to make sure they'll appear in the right\n // order and don't mess up the longer-wins default rule.\n for (let { a, b, soft } of softConflicts)\n if (soft) {\n if (!rel.some(r => r.term == a) || !rel.some(r => r.term == b))\n continue;\n if (soft < 0)\n [a, b] = [b, a]; // Now a is longer than b (and should thus take precedence)\n addRel(rel, b, [a]);\n addRel(rel, a, []);\n }\n add: while (rel.length) {\n for (let i = 0; i < rel.length; i++) {\n let record = rel[i];\n if (record.after.every(t => precTable.includes(t.id))) {\n precTable.push(record.term.id);\n if (rel.length == 1)\n break add;\n rel[i] = rel.pop();\n continue add;\n }\n }\n this.b.raise(`Cyclic token precedence relation between ${rel.map(r => r.term).join(\", \")}`);\n }\n return precTable;\n }\n}\nclass MainTokenSet extends TokenSet {\n constructor() {\n super(...arguments);\n this.explicitConflicts = [];\n }\n getLiteral(expr) {\n let id = JSON.stringify(expr.value);\n for (let built of this.built)\n if (built.id == id)\n return built.term;\n let name = null, props = {}, dialect = null, exported = null;\n let decl = this.ast ? this.ast.literals.find(l => l.literal == expr.value) : null;\n if (decl)\n ({ name, props, dialect, exported } = this.b.nodeInfo(decl.props, \"da\", expr.value));\n let term = this.b.makeTerminal(id, name, props);\n if (dialect != null)\n (this.byDialect[dialect] || (this.byDialect[dialect] = [])).push(term);\n if (exported)\n this.b.namedTerms[exported] = term;\n this.build(expr, this.startState, new State$1([term]), none);\n this.built.push(new BuiltRule(id, none, term));\n return term;\n }\n takeConflicts() {\n var _a;\n let resolve = (expr) => {\n if (expr instanceof NameExpression) {\n for (let built of this.built)\n if (built.matches(expr))\n return built.term;\n }\n else {\n let id = JSON.stringify(expr.value), found = this.built.find(b => b.id == id);\n if (found)\n return found.term;\n }\n this.b.warn(`Precedence specified for unknown token ${expr}`, expr.start);\n return null;\n };\n for (let c of ((_a = this.ast) === null || _a === void 0 ? void 0 : _a.conflicts) || []) {\n let a = resolve(c.a), b = resolve(c.b);\n if (a && b) {\n if (a.id < b.id)\n [a, b] = [b, a];\n this.explicitConflicts.push({ a, b });\n }\n }\n }\n // Token groups are a mechanism for allowing conflicting (matching\n // overlapping input, without an explicit precedence being given)\n // tokens to exist in a grammar _if_ they don't occur in the same\n // place (aren't used in the same states).\n //\n // States that use tokens that conflict will raise an error when any\n // of the conflicting pairs of tokens both occur in that state.\n // Otherwise, they are assigned a token group, which includes all\n // the potentially-conflicting tokens they use. If there's already a\n // group that doesn't have any conflicts with those tokens, that is\n // reused, otherwise a new group is created.\n //\n // So each state has zero or one token groups, and each conflicting\n // token may belong to one or more groups. Tokens get assigned a\n // 16-bit bitmask with the groups they belong to set to 1 (all-1s\n // for non-conflicting tokens). When tokenizing, that mask is\n // compared to the current state's group (again using all-1s for\n // group-less states) to determine whether a token is applicable for\n // this state.\n //\n // Extended/specialized tokens are treated as their parent token for\n // this purpose.\n buildTokenGroups(states, skipInfo, startID) {\n let tokens = this.startState.compile();\n if (tokens.accepting.length)\n this.b.raise(`Grammar contains zero-length tokens (in '${tokens.accepting[0].name}')`, this.rules.find(r => r.id.name == tokens.accepting[0].name).start);\n if (/\\btokens\\b/.test(verbose))\n console.log(tokens.toString());\n // If there is a precedence specified for the pair, the conflict is resolved\n let allConflicts = tokens.findConflicts(checkTogether(states, this.b, skipInfo))\n .filter(({ a, b }) => !this.precededBy(a, b) && !this.precededBy(b, a));\n for (let { a, b } of this.explicitConflicts) {\n if (!allConflicts.some(c => c.a == a && c.b == b))\n allConflicts.push(new Conflict$1(a, b, 0, \"\", \"\"));\n }\n let softConflicts = allConflicts.filter(c => c.soft), conflicts = allConflicts.filter(c => !c.soft);\n let errors = [];\n let groups = [];\n for (let state of states) {\n if (state.defaultReduce || state.tokenGroup > -1)\n continue;\n // Find potentially-conflicting terms (in terms) and the things\n // they conflict with (in conflicts), and raise an error if\n // there's a token conflict directly in this state.\n let terms = [], incompatible = [];\n let skip = skipInfo[this.b.skipRules.indexOf(state.skip)].startTokens;\n for (let term of skip)\n if (state.actions.some(a => a.term == term))\n this.b.raise(`Use of token ${term.name} conflicts with skip rule`);\n let stateTerms = [];\n for (let i = 0; i < state.actions.length + (skip ? skip.length : 0); i++) {\n let term = i < state.actions.length ? state.actions[i].term : skip[i - state.actions.length];\n let orig = this.b.tokenOrigins[term.name];\n if (orig && orig.spec)\n term = orig.spec;\n else if (orig && orig.external)\n continue;\n addToSet(stateTerms, term);\n }\n if (stateTerms.length == 0)\n continue;\n for (let term of stateTerms) {\n for (let conflict of conflicts) {\n let conflicting = conflict.a == term ? conflict.b : conflict.b == term ? conflict.a : null;\n if (!conflicting)\n continue;\n if (stateTerms.includes(conflicting) && !errors.some(e => e.conflict == conflict)) {\n let example = conflict.exampleA ? ` (example: ${JSON.stringify(conflict.exampleA)}${conflict.exampleB ? ` vs ${JSON.stringify(conflict.exampleB)}` : \"\"})` : \"\";\n errors.push({\n error: `Overlapping tokens ${term.name} and ${conflicting.name} used in same context${example}\\n` +\n `After: ${state.set[0].trail()}`,\n conflict\n });\n }\n addToSet(terms, term);\n addToSet(incompatible, conflicting);\n }\n }\n let tokenGroup = null;\n for (let group of groups) {\n if (incompatible.some(term => group.tokens.includes(term)))\n continue;\n for (let term of terms)\n addToSet(group.tokens, term);\n tokenGroup = group;\n break;\n }\n if (!tokenGroup) {\n tokenGroup = new TokenGroup(terms, groups.length + startID);\n groups.push(tokenGroup);\n }\n state.tokenGroup = tokenGroup.groupID;\n }\n if (errors.length)\n this.b.raise(errors.map(e => e.error).join(\"\\n\\n\"));\n if (groups.length + startID > 16)\n this.b.raise(`Too many different token groups (${groups.length}) to represent them as a 16-bit bitfield`);\n let precTable = this.buildPrecTable(softConflicts);\n return {\n tokenGroups: groups,\n tokenPrec: precTable,\n tokenData: tokens.toArray(buildTokenMasks(groups), precTable)\n };\n }\n}\nclass LocalTokenSet extends TokenSet {\n constructor(b, ast) {\n super(b, ast);\n this.fallback = null;\n if (ast.fallback)\n b.unique(ast.fallback.id);\n }\n getToken(expr) {\n let term = null;\n if (this.ast.fallback && this.ast.fallback.id.name == expr.id.name) {\n if (expr.args.length)\n this.b.raise(`Incorrect number of arguments for ${expr.id.name}`, expr.start);\n if (!this.fallback) {\n let { name: nodeName, props, exported } = this.b.nodeInfo(this.ast.fallback.props, \"\", expr.id.name, none, none);\n let term = this.fallback = this.b.makeTerminal(expr.id.name, nodeName, props);\n if (term.nodeType || exported) {\n if (!term.nodeType)\n term.preserve = true;\n this.b.namedTerms[exported || expr.id.name] = term;\n }\n this.b.used(expr.id.name);\n }\n term = this.fallback;\n }\n else {\n term = super.getToken(expr);\n }\n if (term && !this.b.tokenOrigins[term.name])\n this.b.tokenOrigins[term.name] = { group: this };\n return term;\n }\n buildLocalGroup(states, skipInfo, id) {\n let tokens = this.startState.compile();\n if (tokens.accepting.length)\n this.b.raise(`Grammar contains zero-length tokens (in '${tokens.accepting[0].name}')`, this.rules.find(r => r.id.name == tokens.accepting[0].name).start);\n for (let { a, b, exampleA } of tokens.findConflicts(() => true)) {\n if (!this.precededBy(a, b) && !this.precededBy(b, a))\n this.b.raise(`Overlapping tokens ${a.name} and ${b.name} in local token group${exampleA ? ` (example: ${JSON.stringify(exampleA)})` : ''}`);\n }\n for (let state of states) {\n if (state.defaultReduce)\n continue;\n // See if this state uses any of the tokens in this group, and\n // if so, make sure it *only* uses tokens from this group.\n let usesThis = null;\n let usesOther = skipInfo[this.b.skipRules.indexOf(state.skip)].startTokens[0];\n for (let { term } of state.actions) {\n let orig = this.b.tokenOrigins[term.name];\n if ((orig === null || orig === void 0 ? void 0 : orig.group) == this)\n usesThis = term;\n else\n usesOther = term;\n }\n if (usesThis) {\n if (usesOther)\n this.b.raise(`Tokens from a local token group used together with other tokens (${usesThis.name} with ${usesOther.name})`);\n state.tokenGroup = id;\n }\n }\n let precTable = this.buildPrecTable(none);\n let tokenData = tokens.toArray({ [id]: 65535 /* Seq.End */ }, precTable);\n let precOffset = tokenData.length;\n let fullData = new Uint16Array(tokenData.length + precTable.length + 1);\n fullData.set(tokenData, 0);\n fullData.set(precTable, precOffset);\n fullData[fullData.length - 1] = 65535 /* Seq.End */;\n return {\n groupID: id,\n create: () => new LocalTokenGroup(fullData, precOffset, this.fallback ? this.fallback.id : undefined),\n createSource: importName => `new ${importName(\"LocalTokenGroup\", \"@lezer/lr\")}(${encodeArray(fullData)}, ${precOffset}${this.fallback ? `, ${this.fallback.id}` : ''})`\n };\n }\n}\nfunction checkTogether(states, b, skipInfo) {\n let cache = Object.create(null);\n function hasTerm(state, term) {\n return state.actions.some(a => a.term == term) ||\n skipInfo[b.skipRules.indexOf(state.skip)].startTokens.includes(term);\n }\n return (a, b) => {\n if (a.id < b.id)\n [a, b] = [b, a];\n let key = a.id | (b.id << 16), cached = cache[key];\n if (cached != null)\n return cached;\n return cache[key] = states.some(state => hasTerm(state, a) && hasTerm(state, b));\n };\n}\nfunction invertRanges(ranges) {\n let pos = 0, result = [];\n for (let [a, b] of ranges) {\n if (a > pos)\n result.push([pos, a]);\n pos = b;\n }\n if (pos <= MAX_CODE)\n result.push([pos, MAX_CODE + 1]);\n return result;\n}\nconst ASTRAL = 0x10000, GAP_START = 0xd800, GAP_END = 0xe000, MAX_CODE = 0x10ffff;\nconst LOW_SURR_B = 0xdc00, HIGH_SURR_B = 0xdfff;\n// Create intermediate states for astral characters in a range, if\n// necessary, since the tokenizer acts on UTF16 characters\nfunction rangeEdges(from, to, low, hi) {\n if (low < ASTRAL) {\n if (low < GAP_START)\n from.edge(low, Math.min(hi, GAP_START), to);\n if (hi > GAP_END)\n from.edge(Math.max(low, GAP_END), Math.min(hi, MAX_CHAR + 1), to);\n low = ASTRAL;\n }\n if (hi <= ASTRAL)\n return;\n let lowStr = String.fromCodePoint(low), hiStr = String.fromCodePoint(hi - 1);\n let lowA = lowStr.charCodeAt(0), lowB = lowStr.charCodeAt(1);\n let hiA = hiStr.charCodeAt(0), hiB = hiStr.charCodeAt(1);\n if (lowA == hiA) { // Share the first char code\n let hop = new State$1;\n from.edge(lowA, lowA + 1, hop);\n hop.edge(lowB, hiB + 1, to);\n }\n else {\n let midStart = lowA, midEnd = hiA;\n if (lowB > LOW_SURR_B) {\n midStart++;\n let hop = new State$1;\n from.edge(lowA, lowA + 1, hop);\n hop.edge(lowB, HIGH_SURR_B + 1, to);\n }\n if (hiB < HIGH_SURR_B) {\n midEnd--;\n let hop = new State$1;\n from.edge(hiA, hiA + 1, hop);\n hop.edge(LOW_SURR_B, hiB + 1, to);\n }\n if (midStart <= midEnd) {\n let hop = new State$1;\n from.edge(midStart, midEnd + 1, hop);\n hop.edge(LOW_SURR_B, HIGH_SURR_B + 1, to);\n }\n }\n}\nfunction isEmpty(expr) {\n return expr instanceof SequenceExpression && expr.exprs.length == 0;\n}\nfunction gatherExtTokens(b, tokens) {\n let result = Object.create(null);\n for (let token of tokens) {\n b.unique(token.id);\n let { name, props, dialect } = b.nodeInfo(token.props, \"d\", token.id.name);\n let term = b.makeTerminal(token.id.name, name, props);\n if (dialect != null)\n (b.tokens.byDialect[dialect] || (b.tokens.byDialect[dialect] = [])).push(term);\n b.namedTerms[token.id.name] = result[token.id.name] = term;\n }\n return result;\n}\nfunction findExtToken(b, tokens, expr) {\n let found = tokens[expr.id.name];\n if (!found)\n return null;\n if (expr.args.length)\n b.raise(\"External tokens cannot take arguments\", expr.args[0].start);\n b.used(expr.id.name);\n return found;\n}\nfunction addRel(rel, term, after) {\n let found = rel.findIndex(r => r.term == term);\n if (found < 0)\n rel.push({ term, after });\n else\n rel[found] = { term, after: rel[found].after.concat(after) };\n}\nclass ExternalTokenSet {\n constructor(b, ast) {\n this.b = b;\n this.ast = ast;\n this.tokens = gatherExtTokens(b, ast.tokens);\n for (let name in this.tokens)\n this.b.tokenOrigins[this.tokens[name].name] = { external: this };\n }\n getToken(expr) { return findExtToken(this.b, this.tokens, expr); }\n create() {\n return this.b.options.externalTokenizer(this.ast.id.name, this.b.termTable);\n }\n createSource(importName) {\n let { source, id: { name } } = this.ast;\n return importName(name, source);\n }\n}\nclass ExternalSpecializer {\n constructor(b, ast) {\n this.b = b;\n this.ast = ast;\n this.term = null;\n this.tokens = gatherExtTokens(b, ast.tokens);\n }\n finish() {\n let terms = this.b.normalizeExpr(this.ast.token);\n if (terms.length != 1 || terms[0].terms.length != 1 || !terms[0].terms[0].terminal)\n this.b.raise(`The token expression to '@external ${this.ast.type}' must resolve to a token`, this.ast.token.start);\n this.term = terms[0].terms[0];\n for (let name in this.tokens)\n this.b.tokenOrigins[this.tokens[name].name] = { spec: this.term, external: this };\n }\n getToken(expr) { return findExtToken(this.b, this.tokens, expr); }\n}\nfunction inlineRules(rules, preserve) {\n for (let pass = 0;; pass++) {\n let inlinable = Object.create(null), found;\n if (pass == 0)\n for (let rule of rules) {\n if (rule.name.inline && !inlinable[rule.name.name]) {\n let group = rules.filter(r => r.name == rule.name);\n if (group.some(r => r.parts.includes(rule.name)))\n continue;\n found = inlinable[rule.name.name] = group;\n }\n }\n for (let i = 0; i < rules.length; i++) {\n let rule = rules[i];\n if (!rule.name.interesting && !rule.parts.includes(rule.name) && rule.parts.length < 3 &&\n !preserve.includes(rule.name) &&\n (rule.parts.length == 1 || rules.every(other => other.skip == rule.skip || !other.parts.includes(rule.name))) &&\n !rule.parts.some(p => !!inlinable[p.name]) &&\n !rules.some((r, j) => j != i && r.name == rule.name))\n found = inlinable[rule.name.name] = [rule];\n }\n if (!found)\n return rules;\n let newRules = [];\n for (let rule of rules) {\n if (inlinable[rule.name.name])\n continue;\n if (!rule.parts.some(p => !!inlinable[p.name])) {\n newRules.push(rule);\n continue;\n }\n function expand(at, conflicts, parts) {\n if (at == rule.parts.length) {\n newRules.push(new Rule(rule.name, parts, conflicts, rule.skip));\n return;\n }\n let next = rule.parts[at], replace = inlinable[next.name];\n if (!replace) {\n expand(at + 1, conflicts.concat(rule.conflicts[at + 1]), parts.concat(next));\n return;\n }\n for (let r of replace)\n expand(at + 1, conflicts.slice(0, conflicts.length - 1)\n .concat(conflicts[at].join(r.conflicts[0]))\n .concat(r.conflicts.slice(1, r.conflicts.length - 1))\n .concat(rule.conflicts[at + 1].join(r.conflicts[r.conflicts.length - 1])), parts.concat(r.parts));\n }\n expand(0, [rule.conflicts[0]], []);\n }\n rules = newRules;\n }\n}\nfunction mergeRules(rules) {\n let merged = Object.create(null), found;\n for (let i = 0; i < rules.length;) {\n let groupStart = i;\n let name = rules[i++].name;\n while (i < rules.length && rules[i].name == name)\n i++;\n let size = i - groupStart;\n if (name.interesting)\n continue;\n for (let j = i; j < rules.length;) {\n let otherStart = j, otherName = rules[j++].name;\n while (j < rules.length && rules[j].name == otherName)\n j++;\n if (j - otherStart != size || otherName.interesting)\n continue;\n let match = true;\n for (let k = 0; k < size && match; k++) {\n let a = rules[groupStart + k], b = rules[otherStart + k];\n if (a.cmpNoName(b) != 0)\n match = false;\n }\n if (match)\n found = merged[name.name] = otherName;\n }\n }\n if (!found)\n return rules;\n let newRules = [];\n for (let rule of rules)\n if (!merged[rule.name.name]) {\n newRules.push(rule.parts.every(p => !merged[p.name]) ? rule :\n new Rule(rule.name, rule.parts.map(p => merged[p.name] || p), rule.conflicts, rule.skip));\n }\n return newRules;\n}\nfunction simplifyRules(rules, preserve) {\n return mergeRules(inlineRules(rules, preserve));\n}\n/**\nBuild an in-memory parser instance for a given grammar. This is\nmostly useful for testing. If your grammar uses external\ntokenizers, you'll have to provide the `externalTokenizer` option\nfor the returned parser to be able to parse anything.\n*/\nfunction buildParser(text, options = {}) {\n let builder = new Builder(text, options), parser = builder.getParser();\n parser.termTable = builder.termTable;\n return parser;\n}\nconst KEYWORDS = [\"break\", \"case\", \"catch\", \"continue\", \"debugger\", \"default\", \"do\", \"else\", \"finally\",\n \"for\", \"function\", \"if\", \"return\", \"switch\", \"throw\", \"try\", \"var\", \"while\", \"with\",\n \"null\", \"true\", \"false\", \"instanceof\", \"typeof\", \"void\", \"delete\", \"new\", \"in\", \"this\",\n \"const\", \"class\", \"extends\", \"export\", \"import\", \"super\", \"enum\", \"implements\", \"interface\",\n \"let\", \"package\", \"private\", \"protected\", \"public\", \"static\", \"yield\", \"require\"];\n/**\nBuild the code that represents the parser tables for a given\ngrammar description. The `parser` property in the return value\nholds the main file that exports the `Parser` instance. The\n`terms` property holds a declaration file that defines constants\nfor all of the named terms in grammar, holding their ids as value.\nThis is useful when external code, such as a tokenizer, needs to\nbe able to use these ids. It is recommended to run a tree-shaking\nbundler when importing this file, since you usually only need a\nhandful of the many terms in your code.\n*/\nfunction buildParserFile(text, options = {}) {\n return new Builder(text, options).getParserFile();\n}\nfunction ignored(name) {\n let first = name[0];\n return first == \"_\" || first.toUpperCase() != first;\n}\nfunction isExported(rule) {\n return rule.props.some(p => p.at && p.name == \"export\");\n}\n\nexport { GenError, buildParser, buildParserFile };\n","// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\nimport { defaultHighlightStyle, HighlightStyle, syntaxHighlighting } from '@codemirror/language';\nimport { EditorView } from '@codemirror/view';\nimport { nullTranslator } from '@jupyterlab/translation';\nimport { tags as t } from '@lezer/highlight';\nexport const jupyterEditorTheme = EditorView.theme({\n /**\n * CodeMirror themes are handling the background/color in this way. This works\n * fine for CodeMirror editors outside the notebook, but the notebook styles\n * these things differently.\n */\n '&': {\n background: 'var(--jp-layout-color0)',\n color: 'var(--jp-content-font-color1)'\n },\n /* In the notebook, we want this styling to be handled by its container */\n '.jp-CodeConsole &, .jp-Notebook &': {\n background: 'transparent'\n },\n '.cm-content': {\n caretColor: 'var(--jp-editor-cursor-color)'\n },\n /* Inherit font family from .cm-editor */\n '.cm-scroller': {\n fontFamily: 'inherit'\n },\n '.cm-cursor, .cm-dropCursor': {\n borderLeft: 'var(--jp-code-cursor-width0) solid var(--jp-editor-cursor-color)'\n },\n '.cm-selectionBackground, .cm-content ::selection': {\n backgroundColor: 'var(--jp-editor-selected-background)'\n },\n '&.cm-focused > .cm-scroller > .cm-selectionLayer .cm-selectionBackground': {\n backgroundColor: 'var(--jp-editor-selected-focused-background)'\n },\n '.cm-gutters': {\n borderRight: '1px solid var(--jp-border-color2)',\n backgroundColor: 'var(--jp-layout-color2)'\n },\n '.cm-gutter': {\n backgroundColor: 'var(--jp-layout-color2)'\n },\n '.cm-activeLine': {\n backgroundColor: 'color-mix(in srgb, var(--jp-layout-color3) 25%, transparent)'\n },\n '.cm-lineNumbers': {\n color: 'var(--jp-ui-font-color2)'\n },\n '.cm-searchMatch': {\n backgroundColor: 'var(--jp-search-unselected-match-background-color)',\n color: 'var(--jp-search-unselected-match-color)'\n },\n '.cm-searchMatch.cm-searchMatch-selected': {\n backgroundColor: 'var(--jp-search-selected-match-background-color) !important',\n color: 'var(--jp-search-selected-match-color) !important'\n },\n '.cm-tooltip': {\n backgroundColor: 'var(--jp-layout-color1)'\n }\n});\n// The list of available tags for syntax highlighting is available at\n// https://lezer.codemirror.net/docs/ref/#highlight.tags\nexport const jupyterHighlightStyle = HighlightStyle.define([\n // Order matters - a rule will override the previous ones; important for example for in headings styles.\n { tag: t.meta, color: 'var(--jp-mirror-editor-meta-color)' },\n { tag: t.heading, color: 'var(--jp-mirror-editor-header-color)' },\n {\n tag: [t.heading1, t.heading2, t.heading3, t.heading4],\n color: 'var(--jp-mirror-editor-header-color)',\n fontWeight: 'bold'\n },\n {\n tag: t.keyword,\n color: 'var(--jp-mirror-editor-keyword-color)',\n fontWeight: 'bold'\n },\n { tag: t.atom, color: 'var(--jp-mirror-editor-atom-color)' },\n { tag: t.number, color: 'var(--jp-mirror-editor-number-color)' },\n {\n tag: [t.definition(t.name), t.function(t.definition(t.variableName))],\n color: 'var(--jp-mirror-editor-def-color)'\n },\n {\n tag: t.standard(t.variableName),\n color: 'var(--jp-mirror-editor-builtin-color)'\n },\n {\n tag: [t.special(t.variableName), t.self],\n color: 'var(--jp-mirror-editor-variable-2-color)'\n },\n { tag: t.punctuation, color: 'var(--jp-mirror-editor-punctuation-color)' },\n { tag: t.propertyName, color: 'var(--jp-mirror-editor-property-color)' },\n {\n tag: t.operator,\n color: 'var(--jp-mirror-editor-operator-color)',\n fontWeight: 'bold'\n },\n {\n tag: t.comment,\n color: 'var(--jp-mirror-editor-comment-color)',\n fontStyle: 'italic'\n },\n { tag: t.string, color: 'var(--jp-mirror-editor-string-color)' },\n {\n tag: [t.labelName, t.monospace, t.special(t.string)],\n color: 'var(--jp-mirror-editor-string-2-color)'\n },\n { tag: t.bracket, color: 'var(--jp-mirror-editor-bracket-color)' },\n { tag: t.tagName, color: 'var(--jp-mirror-editor-tag-color)' },\n { tag: t.attributeName, color: 'var(--jp-mirror-editor-attribute-color)' },\n { tag: t.quote, color: 'var(--jp-mirror-editor-quote-color)' },\n {\n tag: t.link,\n color: 'var(--jp-mirror-editor-link-color)',\n textDecoration: 'underline'\n },\n { tag: [t.separator, t.derefOperator, t.paren], color: '' },\n { tag: t.strong, fontWeight: 'bold' },\n { tag: t.emphasis, fontStyle: 'italic' },\n { tag: t.strikethrough, textDecoration: 'line-through' },\n {\n tag: t.bool,\n color: 'var(--jp-mirror-editor-keyword-color)',\n fontWeight: 'bold'\n }\n]);\n/**\n * JupyterLab CodeMirror 6 theme\n */\nexport const jupyterTheme = [\n jupyterEditorTheme,\n syntaxHighlighting(jupyterHighlightStyle)\n];\n/**\n * CodeMirror 6 theme registry\n */\nexport class EditorThemeRegistry {\n constructor() {\n /**\n * CodeMirror 6 themes\n */\n this._themeMap = new Map([\n ['jupyter', Object.freeze({ name: 'jupyter', theme: jupyterTheme })]\n ]);\n }\n /**\n * Get all themes\n */\n get themes() {\n return Array.from(this._themeMap.values());\n }\n /**\n * Get the default CodeMirror 6 theme for JupyterLab\n *\n * @returns Default theme\n */\n defaultTheme() {\n return this._themeMap.get('jupyter').theme;\n }\n /**\n * Register a new theme.\n *\n * @param theme Codemirror 6 theme\n */\n addTheme(theme) {\n if (this._themeMap.has(theme.name)) {\n throw new Error(`A theme named '${theme.name}' is already registered.`);\n }\n this._themeMap.set(theme.name, { displayName: theme.name, ...theme });\n }\n /**\n * Get a theme.\n *\n * #### Notes\n * It falls back to the default theme\n *\n * @param name Theme name\n * @returns Theme extension\n */\n getTheme(name) {\n var _a;\n const ext = (_a = this._themeMap.get(name)) === null || _a === void 0 ? void 0 : _a.theme;\n return ext !== null && ext !== void 0 ? ext : this.defaultTheme();\n }\n}\n/**\n * EditorThemeRegistry namespace\n */\n(function (EditorThemeRegistry) {\n /**\n * Get the default editor themes.\n *\n * @param translator Application translator\n * @returns Default CodeMirror 6 themes\n */\n function getDefaultThemes(translator) {\n const trans = (translator !== null && translator !== void 0 ? translator : nullTranslator).load('jupyterlab');\n return [\n Object.freeze({\n name: 'codemirror',\n displayName: trans.__('codemirror'),\n theme: [\n EditorView.baseTheme({}),\n syntaxHighlighting(defaultHighlightStyle)\n ]\n })\n ];\n }\n EditorThemeRegistry.getDefaultThemes = getDefaultThemes;\n})(EditorThemeRegistry || (EditorThemeRegistry = {}));\n//# sourceMappingURL=theme.js.map","// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\nimport { LanguageDescription, LanguageSupport, LRLanguage, StreamLanguage } from '@codemirror/language';\nimport { IEditorMimeTypeService } from '@jupyterlab/codeeditor';\nimport { PathExt } from '@jupyterlab/coreutils';\nimport { nullTranslator } from '@jupyterlab/translation';\nimport { buildParser } from '@lezer/generator';\nimport { highlightTree } from '@lezer/highlight';\nimport { jupyterHighlightStyle } from './theme';\n/**\n * CodeMirror language registry\n */\nexport class EditorLanguageRegistry {\n constructor() {\n this._modeList = [];\n // Add default language text/plain -> No expressions to parse\n this.addLanguage({\n name: 'none',\n mime: 'text/plain',\n support: new LanguageSupport(\n // Create a dummy parser that as no expression to parse\n LRLanguage.define({ parser: buildParser('@top Program { }') }))\n });\n }\n /**\n * Register a new language for CodeMirror\n *\n * @param language Language to register\n */\n addLanguage(language) {\n var _a;\n const info = (_a = this.findByName(language.name)) !== null && _a !== void 0 ? _a : this.findByMIME(language.mime, true);\n if (info) {\n throw new Error(`${language.mime} already registered`);\n }\n this._modeList.push(this.makeSpec(language));\n }\n /**\n * Ensure a codemirror mode is available by name or Codemirror spec.\n *\n * @param language - The mode to ensure. If it is a string, uses [findBest]\n * to get the appropriate spec.\n *\n * @returns A promise that resolves when the mode is available.\n */\n async getLanguage(language) {\n const spec = this.findBest(language);\n if (spec && !spec.support) {\n spec.support = await spec.load();\n }\n return spec;\n }\n /**\n * Get the raw list of available modes specs.\n *\n * @returns The available modes\n */\n getLanguages() {\n return [...this._modeList];\n }\n /**\n * Find a codemirror mode by MIME.\n *\n * @param mime Mime type to look for\n * @param strict Whether xml and json should be assimilated to the generic mimetype\n * @returns The mode or null\n */\n findByMIME(mime, strict = false) {\n if (Array.isArray(mime)) {\n for (let i = 0; i < mime.length; i++) {\n const spec = this.findByMIME(mime[i]);\n if (spec)\n return spec;\n }\n return null;\n }\n mime = mime.toLowerCase();\n for (let i = 0; i < this._modeList.length; i++) {\n let info = this._modeList[i];\n if (Array.isArray(info.mime)) {\n for (let j = 0; j < info.mime.length; j++) {\n if (info.mime[j] == mime) {\n return info;\n }\n }\n }\n else if (info.mime == mime) {\n return info;\n }\n }\n if (!strict) {\n if (/\\+xml$/.test(mime))\n return this.findByMIME('application/xml');\n if (/\\+json$/.test(mime))\n return this.findByMIME('application/json');\n }\n return null;\n }\n /**\n * Find a codemirror mode by name.\n *\n * @param name The mode name\n * @returns The mode or null\n */\n findByName(name) {\n name = name.toLowerCase();\n for (let i = 0; i < this._modeList.length; i++) {\n let info = this._modeList[i];\n if (info.name.toLowerCase() == name)\n return info;\n if (info.alias) {\n for (let j = 0; j < info.alias.length; j++) {\n if (info.alias[j].toLowerCase() == name) {\n return info;\n }\n }\n }\n }\n return null;\n }\n /**\n * Find a codemirror mode by extension.\n *\n * @param ext The extension name\n * @returns The mode or null\n */\n findByExtension(ext) {\n if (Array.isArray(ext)) {\n for (let i = 0; i < ext.length; i++) {\n const spec = this.findByExtension(ext[i]);\n if (spec)\n return spec;\n }\n return null;\n }\n ext = ext.toLowerCase();\n for (let i = 0; i < this._modeList.length; i++) {\n let info = this._modeList[i];\n for (let j = 0; j < info.extensions.length; j++) {\n if (info.extensions[j].toLowerCase() == ext) {\n return info;\n }\n }\n }\n return null;\n }\n /**\n * Find a codemirror mode by filename.\n *\n * @param name File name\n * @returns The mode or null\n */\n findByFileName(name) {\n const basename = PathExt.basename(name);\n for (let i = 0; i < this._modeList.length; i++) {\n let info = this._modeList[i];\n if (info.filename && info.filename.test(basename)) {\n return info;\n }\n }\n let dot = basename.lastIndexOf('.');\n let ext = dot > -1 && basename.substring(dot + 1, basename.length);\n if (ext) {\n return this.findByExtension(ext);\n }\n return null;\n }\n /**\n * Find a codemirror mode by name or CodeMirror spec.\n *\n * @param language The CodeMirror mode\n * @param fallback Whether to fallback to default mimetype spec or not\n * @returns The mode or null\n */\n findBest(language, fallback = true) {\n var _a, _b, _c, _d;\n const modename = typeof language === 'string' ? language : language.name;\n const mimetype = typeof language !== 'string' ? language.mime : modename;\n const ext = typeof language !== 'string' ? (_a = language.extensions) !== null && _a !== void 0 ? _a : [] : [];\n return ((_d = (_c = (_b = (modename ? this.findByName(modename) : null)) !== null && _b !== void 0 ? _b : (mimetype ? this.findByMIME(mimetype) : null)) !== null && _c !== void 0 ? _c : this.findByExtension(ext)) !== null && _d !== void 0 ? _d : (fallback\n ? this.findByMIME(IEditorMimeTypeService.defaultMimeType)\n : null));\n }\n /**\n * Parse and style a string.\n *\n * @param code Code to highlight\n * @param language Code language\n * @param el HTML element into which the highlighted code will be inserted\n */\n async highlight(code, language, el) {\n var _a;\n if (language) {\n await this.getLanguage(language);\n }\n const language_ = (_a = language === null || language === void 0 ? void 0 : language.support) === null || _a === void 0 ? void 0 : _a.language;\n if (!language_) {\n el.appendChild(document.createTextNode(code));\n return;\n }\n const tree = language_.parser.parse(code);\n // position state required because unstyled tokens are not emitted\n // in highlightTree\n let pos = 0;\n highlightTree(tree, jupyterHighlightStyle, (from, to, classes) => {\n if (from > pos) {\n // No style applied to the token between pos and from\n el.appendChild(document.createTextNode(code.slice(pos, from)));\n }\n const sp = el.appendChild(document.createElement('span'));\n sp.className = classes;\n sp.appendChild(document.createTextNode(code.slice(from, to)));\n pos = to;\n });\n if (pos < tree.length - 1) {\n // No style applied on the trailing text\n el.appendChild(document.createTextNode(code.slice(pos, tree.length)));\n }\n }\n // Code mirror uses two similar structures, a plain object with optional fields,\n // and a class with the same fields but all mandatory. Maybe adopting the same\n // pattern would be less confusing (although far more verbose)\n makeSpec(spec) {\n let res = LanguageDescription.of(spec);\n // CodeMirror does not store/use mime type of a language\n res.mime = spec.mime;\n res.displayName = spec.displayName;\n return res;\n }\n}\n/**\n * EditorLanguageRegistry namespace\n */\n(function (EditorLanguageRegistry) {\n /**\n * Convert an CodeMirror 5 language parser to CodeMirror 6\n *\n * @param parser Legacy parser\n * @returns Language object\n */\n function legacy(parser) {\n return new LanguageSupport(StreamLanguage.define(parser));\n }\n EditorLanguageRegistry.legacy = legacy;\n /**\n * Create a dialect of SQL\n *\n * @param dialectName SQL dialect\n * @returns Language object\n */\n async function sql(dialectName) {\n const m = await import('@codemirror/lang-sql');\n return m.sql({ dialect: m[dialectName] });\n }\n /**\n * Get the default editor languages\n *\n * @param translator Application translator\n * @returns Default CodeMirror 6 languages\n */\n function getDefaultLanguages(translator) {\n const trans = (translator !== null && translator !== void 0 ? translator : nullTranslator).load('jupyterlab');\n return [\n {\n name: 'C',\n displayName: trans.__('C'),\n mime: 'text/x-csrc',\n extensions: ['c', 'h', 'ino'],\n async load() {\n const m = await import('@codemirror/lang-cpp');\n return m.cpp();\n }\n },\n {\n name: 'C++',\n displayName: trans.__('C++'),\n mime: 'text/x-c++src',\n extensions: ['cpp', 'c++', 'cc', 'cxx', 'hpp', 'h++', 'hh', 'hxx'],\n async load() {\n const m = await import('@codemirror/lang-cpp');\n return m.cpp();\n }\n },\n {\n name: 'CQL',\n displayName: trans.__('CQL'),\n mime: 'text/x-cassandra',\n extensions: ['cql'],\n load() {\n return sql('Cassandra');\n }\n },\n {\n name: 'CSS',\n displayName: trans.__('CSS'),\n mime: 'text/css',\n extensions: ['css'],\n async load() {\n const m = await import('@codemirror/lang-css');\n return m.css();\n }\n },\n {\n name: 'HTML',\n displayName: trans.__('HTML'),\n alias: ['xhtml'],\n mime: 'text/html',\n extensions: ['html', 'htm', 'handlebars', 'hbs'],\n async load() {\n const m = await import('@codemirror/lang-html');\n return m.html();\n }\n },\n {\n name: 'Java',\n displayName: trans.__('Java'),\n mime: 'text/x-java',\n extensions: ['java'],\n async load() {\n const m = await import('@codemirror/lang-java');\n return m.java();\n }\n },\n {\n name: 'Javascript',\n displayName: trans.__('Javascript'),\n alias: ['ecmascript', 'js', 'node'],\n mime: [\n 'text/javascript',\n 'text/ecmascript',\n 'application/javascript',\n 'application/x-javascript',\n 'application/ecmascript'\n ],\n extensions: ['js', 'mjs', 'cjs'],\n async load() {\n const m = await import('@codemirror/lang-javascript');\n return m.javascript();\n }\n },\n {\n name: 'JSON',\n displayName: trans.__('JSON'),\n alias: ['json5'],\n mime: ['application/json', 'application/x-json'],\n extensions: ['json', 'map'],\n async load() {\n const m = await import('@codemirror/lang-json');\n return m.json();\n }\n },\n {\n name: 'JSX',\n displayName: trans.__('JSX'),\n mime: 'text/jsx',\n extensions: ['jsx'],\n async load() {\n const m = await import('@codemirror/lang-javascript');\n return m.javascript({ jsx: true });\n }\n },\n {\n name: 'MariaDB SQL',\n displayName: trans.__('MariaDB SQL'),\n mime: 'text/x-mariadb',\n load() {\n return sql('MariaSQL');\n }\n },\n {\n name: 'Markdown',\n displayName: trans.__('Markdown'),\n mime: 'text/x-markdown',\n extensions: ['md', 'markdown', 'mkd'],\n async load() {\n const m = await import('@codemirror/lang-markdown');\n return m.markdown({ codeLanguages: this._modeList });\n }\n },\n {\n name: 'MS SQL',\n displayName: trans.__('MS SQL'),\n mime: 'text/x-mssql',\n load() {\n return sql('MSSQL');\n }\n },\n {\n name: 'MySQL',\n displayName: trans.__('MySQL'),\n mime: 'text/x-mysql',\n load() {\n return sql('MySQL');\n }\n },\n {\n name: 'PHP',\n displayName: trans.__('PHP'),\n mime: [\n 'text/x-php',\n 'application/x-httpd-php',\n 'application/x-httpd-php-open'\n ],\n extensions: ['php', 'php3', 'php4', 'php5', 'php7', 'phtml'],\n async load() {\n const m = await import('@codemirror/lang-php');\n return m.php();\n }\n },\n {\n name: 'PLSQL',\n displayName: trans.__('PLSQL'),\n mime: 'text/x-plsql',\n extensions: ['pls'],\n load() {\n return sql('PLSQL');\n }\n },\n {\n name: 'PostgreSQL',\n displayName: trans.__('PostgreSQL'),\n mime: 'text/x-pgsql',\n load() {\n return sql('PostgreSQL');\n }\n },\n {\n name: 'Python',\n displayName: trans.__('Python'),\n mime: 'text/x-python',\n extensions: ['BUILD', 'bzl', 'py', 'pyw'],\n filename: /^(BUCK|BUILD)$/,\n async load() {\n const m = await import('@codemirror/lang-python');\n return m.python();\n }\n },\n {\n name: 'ipython',\n displayName: trans.__('ipython'),\n mime: 'text/x-ipython',\n async load() {\n // FIXME Restore '?' operator - using the default python LanguageSupport allows\n // to activate feature such as code folding.\n // return Promise.resolve(legacy(mkPython({ singleOperators: /\\?/ })));\n const m = await import('@codemirror/lang-python');\n return m.python();\n }\n },\n {\n name: 'Rust',\n displayName: trans.__('Rust'),\n mime: 'text/x-rustsrc',\n extensions: ['rs'],\n async load() {\n const m = await import('@codemirror/lang-rust');\n return m.rust();\n }\n },\n {\n name: 'SQL',\n displayName: trans.__('SQL'),\n mime: ['application/sql', 'text/x-sql'],\n extensions: ['sql'],\n load() {\n return sql('StandardSQL');\n }\n },\n {\n name: 'SQLite',\n displayName: trans.__('SQLite'),\n mime: 'text/x-sqlite',\n load() {\n return sql('SQLite');\n }\n },\n {\n name: 'TSX',\n displayName: trans.__('TSX'),\n alias: ['TypeScript-JSX'],\n mime: 'text/typescript-jsx',\n extensions: ['tsx'],\n async load() {\n const m = await import('@codemirror/lang-javascript');\n return m.javascript({ jsx: true, typescript: true });\n }\n },\n {\n name: 'TypeScript',\n displayName: trans.__('TypeScript'),\n alias: ['ts'],\n mime: 'application/typescript',\n extensions: ['ts'],\n async load() {\n const m = await import('@codemirror/lang-javascript');\n return m.javascript({ typescript: true });\n }\n },\n {\n name: 'WebAssembly',\n displayName: trans.__('WebAssembly'),\n mime: 'text/webassembly',\n extensions: ['wat', 'wast'],\n async load() {\n const m = await import('@codemirror/lang-wast');\n return m.wast();\n }\n },\n {\n name: 'XML',\n displayName: trans.__('XML'),\n alias: ['rss', 'wsdl', 'xsd'],\n mime: ['application/xml', 'text/xml'],\n extensions: ['xml', 'xsl', 'xsd', 'svg'],\n async load() {\n const m = await import('@codemirror/lang-xml');\n return m.xml();\n }\n },\n // Legacy modes ported from CodeMirror 5\n {\n name: 'APL',\n displayName: trans.__('APL'),\n mime: 'text/apl',\n extensions: ['dyalog', 'apl'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/apl');\n return legacy(m.apl);\n }\n },\n {\n name: 'PGP',\n displayName: trans.__('PGP'),\n alias: ['asciiarmor'],\n mime: [\n 'application/pgp',\n 'application/pgp-encrypted',\n 'application/pgp-keys',\n 'application/pgp-signature'\n ],\n extensions: ['asc', 'pgp', 'sig'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/asciiarmor');\n return legacy(m.asciiArmor);\n }\n },\n {\n name: 'ASN.1',\n displayName: trans.__('ASN.1'),\n mime: 'text/x-ttcn-asn',\n extensions: ['asn', 'asn1'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/asn1');\n return legacy(m.asn1({}));\n }\n },\n {\n name: 'Asterisk',\n displayName: trans.__('Asterisk'),\n mime: 'text/x-asterisk',\n filename: /^extensions\\.conf$/i,\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/asterisk');\n return legacy(m.asterisk);\n }\n },\n {\n name: 'Brainfuck',\n displayName: trans.__('Brainfuck'),\n mime: 'text/x-brainfuck',\n extensions: ['b', 'bf'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/brainfuck');\n return legacy(m.brainfuck);\n }\n },\n {\n name: 'Cobol',\n displayName: trans.__('Cobol'),\n mime: 'text/x-cobol',\n extensions: ['cob', 'cpy'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/cobol');\n return legacy(m.cobol);\n }\n },\n {\n name: 'C#',\n displayName: trans.__('C#'),\n alias: ['csharp', 'cs'],\n mime: 'text/x-csharp',\n extensions: ['cs'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/clike');\n return legacy(m.csharp);\n }\n },\n {\n name: 'Clojure',\n displayName: trans.__('Clojure'),\n mime: 'text/x-clojure',\n extensions: ['clj', 'cljc', 'cljx'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/clojure');\n return legacy(m.clojure);\n }\n },\n {\n name: 'ClojureScript',\n displayName: trans.__('ClojureScript'),\n mime: 'text/x-clojurescript',\n extensions: ['cljs'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/clojure');\n return legacy(m.clojure);\n }\n },\n {\n name: 'Closure Stylesheets (GSS)',\n displayName: trans.__('Closure Stylesheets (GSS)'),\n mime: 'text/x-gss',\n extensions: ['gss'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/css');\n return legacy(m.gss);\n }\n },\n {\n name: 'CMake',\n displayName: trans.__('CMake'),\n mime: 'text/x-cmake',\n extensions: ['cmake', 'cmake.in'],\n filename: /^CMakeLists\\.txt$/,\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/cmake');\n return legacy(m.cmake);\n }\n },\n {\n name: 'CoffeeScript',\n displayName: trans.__('CoffeeScript'),\n alias: ['coffee', 'coffee-script'],\n mime: [\n 'application/vnd.coffeescript',\n 'text/coffeescript',\n 'text/x-coffeescript'\n ],\n extensions: ['coffee'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/coffeescript');\n return legacy(m.coffeeScript);\n }\n },\n {\n name: 'Common Lisp',\n displayName: trans.__('Common Lisp'),\n alias: ['lisp'],\n mime: 'text/x-common-lisp',\n extensions: ['cl', 'lisp', 'el'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/commonlisp');\n return legacy(m.commonLisp);\n }\n },\n {\n name: 'Cypher',\n displayName: trans.__('Cypher'),\n mime: 'application/x-cypher-query',\n extensions: ['cyp', 'cypher'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/cypher');\n return legacy(m.cypher);\n }\n },\n {\n name: 'Cython',\n displayName: trans.__('Cython'),\n mime: 'text/x-cython',\n extensions: ['pyx', 'pxd', 'pxi'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/python');\n return legacy(m.cython);\n }\n },\n {\n name: 'Crystal',\n displayName: trans.__('Crystal'),\n mime: 'text/x-crystal',\n extensions: ['cr'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/crystal');\n return legacy(m.crystal);\n }\n },\n {\n name: 'D',\n displayName: trans.__('D'),\n mime: 'text/x-d',\n extensions: ['d'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/d');\n return legacy(m.d);\n }\n },\n {\n name: 'Dart',\n displayName: trans.__('Dart'),\n mime: ['application/dart', 'text/x-dart'],\n extensions: ['dart'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/clike');\n return legacy(m.dart);\n }\n },\n {\n name: 'diff',\n displayName: trans.__('diff'),\n mime: 'text/x-diff',\n extensions: ['diff', 'patch'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/diff');\n return legacy(m.diff);\n }\n },\n {\n name: 'Dockerfile',\n displayName: trans.__('Dockerfile'),\n mime: 'text/x-dockerfile',\n filename: /^Dockerfile$/,\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/dockerfile');\n return legacy(m.dockerFile);\n }\n },\n {\n name: 'DTD',\n displayName: trans.__('DTD'),\n mime: 'application/xml-dtd',\n extensions: ['dtd'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/dtd');\n return legacy(m.dtd);\n }\n },\n {\n name: 'Dylan',\n displayName: trans.__('Dylan'),\n mime: 'text/x-dylan',\n extensions: ['dylan', 'dyl', 'intr'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/dylan');\n return legacy(m.dylan);\n }\n },\n {\n name: 'EBNF',\n displayName: trans.__('EBNF'),\n mime: 'text/x-ebnf',\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/ebnf');\n return legacy(m.ebnf);\n }\n },\n {\n name: 'ECL',\n displayName: trans.__('ECL'),\n mime: 'text/x-ecl',\n extensions: ['ecl'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/ecl');\n return legacy(m.ecl);\n }\n },\n {\n name: 'edn',\n displayName: trans.__('edn'),\n mime: 'application/edn',\n extensions: ['edn'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/clojure');\n return legacy(m.clojure);\n }\n },\n {\n name: 'Eiffel',\n displayName: trans.__('Eiffel'),\n mime: 'text/x-eiffel',\n extensions: ['e'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/eiffel');\n return legacy(m.eiffel);\n }\n },\n {\n name: 'Elm',\n displayName: trans.__('Elm'),\n mime: 'text/x-elm',\n extensions: ['elm'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/elm');\n return legacy(m.elm);\n }\n },\n {\n name: 'Erlang',\n displayName: trans.__('Erlang'),\n mime: 'text/x-erlang',\n extensions: ['erl'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/erlang');\n return legacy(m.erlang);\n }\n },\n {\n name: 'Esper',\n displayName: trans.__('Esper'),\n mime: 'text/x-esper',\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/sql');\n return legacy(m.esper);\n }\n },\n {\n name: 'Factor',\n displayName: trans.__('Factor'),\n mime: 'text/x-factor',\n extensions: ['factor'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/factor');\n return legacy(m.factor);\n }\n },\n {\n name: 'FCL',\n displayName: trans.__('FCL'),\n mime: 'text/x-fcl',\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/fcl');\n return legacy(m.fcl);\n }\n },\n {\n name: 'Forth',\n displayName: trans.__('Forth'),\n mime: 'text/x-forth',\n extensions: ['forth', 'fth', '4th'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/forth');\n return legacy(m.forth);\n }\n },\n {\n name: 'Fortran',\n displayName: trans.__('Fortran'),\n mime: 'text/x-fortran',\n extensions: ['f', 'for', 'f77', 'f90', 'f95'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/fortran');\n return legacy(m.fortran);\n }\n },\n {\n name: 'F#',\n displayName: trans.__('F#'),\n alias: ['fsharp'],\n mime: 'text/x-fsharp',\n extensions: ['fs'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/mllike');\n return legacy(m.fSharp);\n }\n },\n {\n name: 'Gas',\n displayName: trans.__('Gas'),\n mime: 'text/x-gas',\n extensions: ['s'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/gas');\n return legacy(m.gas);\n }\n },\n {\n name: 'Gherkin',\n displayName: trans.__('Gherkin'),\n mime: 'text/x-feature',\n extensions: ['feature'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/gherkin');\n return legacy(m.gherkin);\n }\n },\n {\n name: 'Go',\n displayName: trans.__('Go'),\n mime: 'text/x-go',\n extensions: ['go'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/go');\n return legacy(m.go);\n }\n },\n {\n name: 'Groovy',\n displayName: trans.__('Groovy'),\n mime: 'text/x-groovy',\n extensions: ['groovy', 'gradle'],\n filename: /^Jenkinsfile$/,\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/groovy');\n return legacy(m.groovy);\n }\n },\n {\n name: 'Haskell',\n displayName: trans.__('Haskell'),\n mime: 'text/x-haskell',\n extensions: ['hs'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/haskell');\n return legacy(m.haskell);\n }\n },\n {\n name: 'Haxe',\n displayName: trans.__('Haxe'),\n mime: 'text/x-haxe',\n extensions: ['hx'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/haxe');\n return legacy(m.haxe);\n }\n },\n {\n name: 'HXML',\n displayName: trans.__('HXML'),\n mime: 'text/x-hxml',\n extensions: ['hxml'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/haxe');\n return legacy(m.hxml);\n }\n },\n {\n name: 'HTTP',\n displayName: trans.__('HTTP'),\n mime: 'message/http',\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/http');\n return legacy(m.http);\n }\n },\n {\n name: 'IDL',\n displayName: trans.__('IDL'),\n mime: 'text/x-idl',\n extensions: ['pro'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/idl');\n return legacy(m.idl);\n }\n },\n {\n name: 'JSON-LD',\n displayName: trans.__('JSON-LD'),\n alias: ['jsonld'],\n mime: 'application/ld+json',\n extensions: ['jsonld'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/javascript');\n return legacy(m.jsonld);\n }\n },\n {\n name: 'Jinja2',\n displayName: trans.__('Jinja2'),\n mime: 'text/jinja2',\n extensions: ['j2', 'jinja', 'jinja2'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/jinja2');\n return legacy(m.jinja2);\n }\n },\n {\n name: 'Julia',\n displayName: trans.__('Julia'),\n mime: 'text/x-julia',\n extensions: ['jl'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/julia');\n return legacy(m.julia);\n }\n },\n {\n name: 'Kotlin',\n displayName: trans.__('Kotlin'),\n mime: 'text/x-kotlin',\n extensions: ['kt'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/clike');\n return legacy(m.kotlin);\n }\n },\n {\n name: 'LESS',\n displayName: trans.__('LESS'),\n mime: 'text/x-less',\n extensions: ['less'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/css');\n return legacy(m.less);\n }\n },\n {\n name: 'LiveScript',\n displayName: trans.__('LiveScript'),\n alias: ['ls'],\n mime: 'text/x-livescript',\n extensions: ['ls'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/livescript');\n return legacy(m.liveScript);\n }\n },\n {\n name: 'Lua',\n displayName: trans.__('Lua'),\n mime: 'text/x-lua',\n extensions: ['lua'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/lua');\n return legacy(m.lua);\n }\n },\n {\n name: 'mIRC',\n displayName: trans.__('mIRC'),\n mime: 'text/mirc',\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/mirc');\n return legacy(m.mirc);\n }\n },\n {\n name: 'Mathematica',\n displayName: trans.__('Mathematica'),\n mime: 'text/x-mathematica',\n extensions: ['m', 'nb', 'wl', 'wls'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/mathematica');\n return legacy(m.mathematica);\n }\n },\n {\n name: 'Modelica',\n displayName: trans.__('Modelica'),\n mime: 'text/x-modelica',\n extensions: ['mo'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/modelica');\n return legacy(m.modelica);\n }\n },\n {\n name: 'MUMPS',\n displayName: trans.__('MUMPS'),\n mime: 'text/x-mumps',\n extensions: ['mps'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/mumps');\n return legacy(m.mumps);\n }\n },\n {\n name: 'mbox',\n displayName: trans.__('mbox'),\n mime: 'application/mbox',\n extensions: ['mbox'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/mbox');\n return legacy(m.mbox);\n }\n },\n {\n name: 'Nginx',\n displayName: trans.__('Nginx'),\n mime: 'text/x-nginx-conf',\n filename: /nginx.*\\.conf$/i,\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/nginx');\n return legacy(m.nginx);\n }\n },\n {\n name: 'NSIS',\n displayName: trans.__('NSIS'),\n mime: 'text/x-nsis',\n extensions: ['nsh', 'nsi'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/nsis');\n return legacy(m.nsis);\n }\n },\n {\n name: 'NTriples',\n displayName: trans.__('NTriples'),\n mime: [\n 'application/n-triples',\n 'application/n-quads',\n 'text/n-triples'\n ],\n extensions: ['nt', 'nq'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/ntriples');\n return legacy(m.ntriples);\n }\n },\n {\n name: 'Objective-C',\n displayName: trans.__('Objective-C'),\n alias: ['objective-c', 'objc'],\n mime: 'text/x-objectivec',\n extensions: ['m'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/clike');\n return legacy(m.objectiveC);\n }\n },\n {\n name: 'Objective-C++',\n displayName: trans.__('Objective-C++'),\n alias: ['objective-c++', 'objc++'],\n mime: 'text/x-objectivec++',\n extensions: ['mm'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/clike');\n return legacy(m.objectiveCpp);\n }\n },\n {\n name: 'OCaml',\n displayName: trans.__('OCaml'),\n mime: 'text/x-ocaml',\n extensions: ['ml', 'mli', 'mll', 'mly'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/mllike');\n return legacy(m.oCaml);\n }\n },\n {\n name: 'Octave',\n displayName: trans.__('Octave'),\n mime: 'text/x-octave',\n extensions: ['m'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/octave');\n return legacy(m.octave);\n }\n },\n {\n name: 'Oz',\n displayName: trans.__('Oz'),\n mime: 'text/x-oz',\n extensions: ['oz'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/oz');\n return legacy(m.oz);\n }\n },\n {\n name: 'Pascal',\n displayName: trans.__('Pascal'),\n mime: 'text/x-pascal',\n extensions: ['p', 'pas'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/pascal');\n return legacy(m.pascal);\n }\n },\n {\n name: 'Perl',\n displayName: trans.__('Perl'),\n mime: 'text/x-perl',\n extensions: ['pl', 'pm'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/perl');\n return legacy(m.perl);\n }\n },\n {\n name: 'Pig',\n displayName: trans.__('Pig'),\n mime: 'text/x-pig',\n extensions: ['pig'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/pig');\n return legacy(m.pig);\n }\n },\n {\n name: 'PowerShell',\n displayName: trans.__('PowerShell'),\n mime: 'application/x-powershell',\n extensions: ['ps1', 'psd1', 'psm1'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/powershell');\n return legacy(m.powerShell);\n }\n },\n {\n name: 'Properties files',\n displayName: trans.__('Properties files'),\n alias: ['ini', 'properties'],\n mime: 'text/x-properties',\n extensions: ['properties', 'ini', 'in'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/properties');\n return legacy(m.properties);\n }\n },\n {\n name: 'ProtoBuf',\n displayName: trans.__('ProtoBuf'),\n mime: 'text/x-protobuf',\n extensions: ['proto'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/protobuf');\n return legacy(m.protobuf);\n }\n },\n {\n name: 'Puppet',\n displayName: trans.__('Puppet'),\n mime: 'text/x-puppet',\n extensions: ['pp'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/puppet');\n return legacy(m.puppet);\n }\n },\n {\n name: 'Q',\n displayName: trans.__('Q'),\n mime: 'text/x-q',\n extensions: ['q'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/q');\n return legacy(m.q);\n }\n },\n {\n name: 'R',\n displayName: trans.__('R'),\n alias: ['rscript'],\n mime: 'text/x-rsrc',\n extensions: ['r', 'R'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/r');\n return legacy(m.r);\n }\n },\n {\n name: 'RPM Changes',\n displayName: trans.__('RPM Changes'),\n mime: 'text/x-rpm-changes',\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/rpm');\n return legacy(m.rpmChanges);\n }\n },\n {\n name: 'RPM Spec',\n displayName: trans.__('RPM Spec'),\n mime: 'text/x-rpm-spec',\n extensions: ['spec'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/rpm');\n return legacy(m.rpmSpec);\n }\n },\n {\n name: 'Ruby',\n displayName: trans.__('Ruby'),\n alias: ['jruby', 'macruby', 'rake', 'rb', 'rbx'],\n mime: 'text/x-ruby',\n extensions: ['rb'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/ruby');\n return legacy(m.ruby);\n }\n },\n {\n name: 'SAS',\n displayName: trans.__('SAS'),\n mime: 'text/x-sas',\n extensions: ['sas'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/sas');\n return legacy(m.sas);\n }\n },\n {\n name: 'Scala',\n displayName: trans.__('Scala'),\n mime: 'text/x-scala',\n extensions: ['scala'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/clike');\n return legacy(m.scala);\n }\n },\n {\n name: 'Scheme',\n displayName: trans.__('Scheme'),\n mime: 'text/x-scheme',\n extensions: ['scm', 'ss'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/scheme');\n return legacy(m.scheme);\n }\n },\n {\n name: 'SCSS',\n displayName: trans.__('SCSS'),\n mime: 'text/x-scss',\n extensions: ['scss'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/css');\n return legacy(m.sCSS);\n }\n },\n {\n name: 'Shell',\n displayName: trans.__('Shell'),\n alias: ['bash', 'sh', 'zsh'],\n mime: ['text/x-sh', 'application/x-sh'],\n extensions: ['sh', 'ksh', 'bash'],\n filename: /^PKGBUILD$/,\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/shell');\n return legacy(m.shell);\n }\n },\n {\n name: 'Sieve',\n displayName: trans.__('Sieve'),\n mime: 'application/sieve',\n extensions: ['siv', 'sieve'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/sieve');\n return legacy(m.sieve);\n }\n },\n {\n name: 'Smalltalk',\n displayName: trans.__('Smalltalk'),\n mime: 'text/x-stsrc',\n extensions: ['st'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/smalltalk');\n return legacy(m.smalltalk);\n }\n },\n {\n name: 'Solr',\n displayName: trans.__('Solr'),\n mime: 'text/x-solr',\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/solr');\n return legacy(m.solr);\n }\n },\n {\n name: 'SML',\n displayName: trans.__('SML'),\n mime: 'text/x-sml',\n extensions: ['sml', 'sig', 'fun', 'smackspec'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/mllike');\n return legacy(m.sml);\n }\n },\n {\n name: 'SPARQL',\n displayName: trans.__('SPARQL'),\n alias: ['sparul'],\n mime: 'application/sparql-query',\n extensions: ['rq', 'sparql'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/sparql');\n return legacy(m.sparql);\n }\n },\n {\n name: 'Spreadsheet',\n displayName: trans.__('Spreadsheet'),\n alias: ['excel', 'formula'],\n mime: 'text/x-spreadsheet',\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/spreadsheet');\n return legacy(m.spreadsheet);\n }\n },\n {\n name: 'Squirrel',\n displayName: trans.__('Squirrel'),\n mime: 'text/x-squirrel',\n extensions: ['nut'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/clike');\n return legacy(m.squirrel);\n }\n },\n {\n name: 'Stylus',\n displayName: trans.__('Stylus'),\n mime: 'text/x-styl',\n extensions: ['styl'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/stylus');\n return legacy(m.stylus);\n }\n },\n {\n name: 'Swift',\n displayName: trans.__('Swift'),\n mime: 'text/x-swift',\n extensions: ['swift'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/swift');\n return legacy(m.swift);\n }\n },\n {\n name: 'sTeX',\n displayName: trans.__('sTeX'),\n mime: 'text/x-stex',\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/stex');\n return legacy(m.stex);\n }\n },\n {\n name: 'LaTeX',\n displayName: trans.__('LaTeX'),\n alias: ['tex'],\n mime: 'text/x-latex',\n extensions: ['text', 'ltx', 'tex'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/stex');\n return legacy(m.stex);\n }\n },\n {\n name: 'SystemVerilog',\n displayName: trans.__('SystemVerilog'),\n mime: 'text/x-systemverilog',\n extensions: ['v', 'sv', 'svh'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/verilog');\n return legacy(m.verilog);\n }\n },\n {\n name: 'Tcl',\n displayName: trans.__('Tcl'),\n mime: 'text/x-tcl',\n extensions: ['tcl'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/tcl');\n return legacy(m.tcl);\n }\n },\n {\n name: 'Textile',\n displayName: trans.__('Textile'),\n mime: 'text/x-textile',\n extensions: ['textile'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/textile');\n return legacy(m.textile);\n }\n },\n {\n name: 'TiddlyWiki',\n displayName: trans.__('TiddlyWiki'),\n mime: 'text/x-tiddlywiki',\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/tiddlywiki');\n return legacy(m.tiddlyWiki);\n }\n },\n {\n name: 'Tiki wiki',\n displayName: trans.__('Tiki wiki'),\n mime: 'text/tiki',\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/tiki');\n return legacy(m.tiki);\n }\n },\n {\n name: 'TOML',\n displayName: trans.__('TOML'),\n mime: 'text/x-toml',\n extensions: ['toml'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/toml');\n return legacy(m.toml);\n }\n },\n {\n name: 'troff',\n displayName: trans.__('troff'),\n mime: 'text/troff',\n extensions: ['1', '2', '3', '4', '5', '6', '7', '8', '9'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/troff');\n return legacy(m.troff);\n }\n },\n {\n name: 'TTCN',\n displayName: trans.__('TTCN'),\n mime: 'text/x-ttcn',\n extensions: ['ttcn', 'ttcn3', 'ttcnpp'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/ttcn');\n return legacy(m.ttcn);\n }\n },\n {\n name: 'TTCN_CFG',\n displayName: trans.__('TTCN_CFG'),\n mime: 'text/x-ttcn-cfg',\n extensions: ['cfg'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/ttcn-cfg');\n return legacy(m.ttcnCfg);\n }\n },\n {\n name: 'Turtle',\n displayName: trans.__('Turtle'),\n mime: 'text/turtle',\n extensions: ['ttl'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/turtle');\n return legacy(m.turtle);\n }\n },\n {\n name: 'Web IDL',\n displayName: trans.__('Web IDL'),\n mime: 'text/x-webidl',\n extensions: ['webidl'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/webidl');\n return legacy(m.webIDL);\n }\n },\n {\n name: 'VB.NET',\n displayName: trans.__('VB.NET'),\n mime: 'text/x-vb',\n extensions: ['vb'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/vb');\n return legacy(m.vb);\n }\n },\n {\n name: 'VBScript',\n displayName: trans.__('VBScript'),\n mime: 'text/vbscript',\n extensions: ['vbs'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/vbscript');\n return legacy(m.vbScript);\n }\n },\n {\n name: 'Velocity',\n displayName: trans.__('Velocity'),\n mime: 'text/velocity',\n extensions: ['vtl'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/velocity');\n return legacy(m.velocity);\n }\n },\n {\n name: 'Verilog',\n displayName: trans.__('Verilog'),\n mime: 'text/x-verilog',\n extensions: ['v'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/verilog');\n return legacy(m.verilog);\n }\n },\n {\n name: 'VHDL',\n displayName: trans.__('VHDL'),\n mime: 'text/x-vhdl',\n extensions: ['vhd', 'vhdl'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/vhdl');\n return legacy(m.vhdl);\n }\n },\n {\n name: 'XQuery',\n displayName: trans.__('XQuery'),\n mime: 'application/xquery',\n extensions: ['xy', 'xquery'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/xquery');\n return legacy(m.xQuery);\n }\n },\n {\n name: 'Yacas',\n displayName: trans.__('Yacas'),\n mime: 'text/x-yacas',\n extensions: ['ys'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/yacas');\n return legacy(m.yacas);\n }\n },\n {\n name: 'YAML',\n displayName: trans.__('YAML'),\n alias: ['yml'],\n mime: ['text/x-yaml', 'text/yaml'],\n extensions: ['yaml', 'yml'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/yaml');\n return legacy(m.yaml);\n }\n },\n {\n name: 'Z80',\n displayName: trans.__('Z80'),\n mime: 'text/x-z80',\n extensions: ['z80'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/z80');\n return legacy(m.z80);\n }\n },\n {\n name: 'mscgen',\n displayName: trans.__('mscgen'),\n mime: 'text/x-mscgen',\n extensions: ['mscgen', 'mscin', 'msc'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/mscgen');\n return legacy(m.mscgen);\n }\n },\n {\n name: 'xu',\n displayName: trans.__('xu'),\n mime: 'text/x-xu',\n extensions: ['xu'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/mscgen');\n return legacy(m.xu);\n }\n },\n {\n name: 'msgenny',\n displayName: trans.__('msgenny'),\n mime: 'text/x-msgenny',\n extensions: ['msgenny'],\n async load() {\n const m = await import('@codemirror/legacy-modes/mode/mscgen');\n return legacy(m.msgenny);\n }\n }\n ];\n }\n EditorLanguageRegistry.getDefaultLanguages = getDefaultLanguages;\n})(EditorLanguageRegistry || (EditorLanguageRegistry = {}));\n//# sourceMappingURL=language.js.map","/* eslint-disable @typescript-eslint/ban-types */\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\nimport { insertNewlineAndIndent } from '@codemirror/commands';\nimport { ensureSyntaxTree } from '@codemirror/language';\nimport { Compartment, EditorSelection, EditorState, Prec } from '@codemirror/state';\nimport { EditorView } from '@codemirror/view';\nimport { UUID } from '@lumino/coreutils';\nimport { Signal } from '@lumino/signaling';\nimport { ExtensionsHandler } from './extension';\nimport { EditorLanguageRegistry } from './language';\n/**\n * The class name added to CodeMirrorWidget instances.\n */\nconst EDITOR_CLASS = 'jp-CodeMirrorEditor';\n/**\n * The key code for the up arrow key.\n */\nconst UP_ARROW = 38;\n/**\n * The key code for the down arrow key.\n */\nconst DOWN_ARROW = 40;\n/**\n * CodeMirror editor.\n */\nexport class CodeMirrorEditor {\n /**\n * Construct a CodeMirror editor.\n */\n constructor(options) {\n var _a, _b, _c, _d, _e, _f;\n /**\n * A signal emitted when either the top or bottom edge is requested.\n */\n this.edgeRequested = new Signal(this);\n this._isDisposed = false;\n this._language = new Compartment();\n this._uuid = '';\n this._languages = (_a = options.languages) !== null && _a !== void 0 ? _a : new EditorLanguageRegistry();\n this._configurator =\n (_d = (_b = options.extensionsRegistry) === null || _b === void 0 ? void 0 : _b.createNew({\n ...options,\n inline: (_c = options.inline) !== null && _c !== void 0 ? _c : false\n })) !== null && _d !== void 0 ? _d : new ExtensionsHandler();\n const host = (this.host = options.host);\n host.classList.add(EDITOR_CLASS);\n host.classList.add('jp-Editor');\n host.addEventListener('focus', this, true);\n host.addEventListener('blur', this, true);\n host.addEventListener('scroll', this, true);\n this._uuid = (_e = options.uuid) !== null && _e !== void 0 ? _e : UUID.uuid4();\n const model = (this._model = options.model);\n // Default keydown handler - it will have low priority\n const onKeyDown = EditorView.domEventHandlers({\n keydown: (event, view) => {\n return this.onKeydown(event);\n }\n });\n const updateListener = EditorView.updateListener.of((update) => {\n this._onDocChanged(update);\n });\n this._editor = Private.createEditor(host, this._configurator, [\n // We need to set the order to high, otherwise the keybinding for ArrowUp/ArrowDown\n // will process the event shunting our edge detection code.\n Prec.high(onKeyDown),\n updateListener,\n // Initialize with empty extension\n this._language.of([]),\n ...((_f = options.extensions) !== null && _f !== void 0 ? _f : [])\n ], model.sharedModel.source);\n this._onMimeTypeChanged();\n this._onCursorActivity();\n this._configurator.configChanged.connect(this.onConfigChanged, this);\n model.mimeTypeChanged.connect(this._onMimeTypeChanged, this);\n }\n /**\n * The uuid of this editor;\n */\n get uuid() {\n return this._uuid;\n }\n set uuid(value) {\n this._uuid = value;\n }\n /**\n * Get the codemirror editor wrapped by the editor.\n */\n get editor() {\n return this._editor;\n }\n /**\n * Get the codemirror doc wrapped by the widget.\n */\n get doc() {\n return this._editor.state.doc;\n }\n /**\n * Get the number of lines in the editor.\n */\n get lineCount() {\n return this.doc.lines;\n }\n /**\n * Returns a model for this editor.\n */\n get model() {\n return this._model;\n }\n /**\n * The height of a line in the editor in pixels.\n */\n get lineHeight() {\n return this._editor.defaultLineHeight;\n }\n /**\n * The widget of a character in the editor in pixels.\n */\n get charWidth() {\n return this._editor.defaultCharacterWidth;\n }\n /**\n * Tests whether the editor is disposed.\n */\n get isDisposed() {\n return this._isDisposed;\n }\n /**\n * Dispose of the resources held by the widget.\n */\n dispose() {\n if (this.isDisposed) {\n return;\n }\n this._isDisposed = true;\n this.host.removeEventListener('focus', this, true);\n this.host.removeEventListener('blur', this, true);\n this.host.removeEventListener('scroll', this, true);\n this._configurator.dispose();\n Signal.clearData(this);\n this.editor.destroy();\n }\n /**\n * Get a config option for the editor.\n */\n getOption(option) {\n return this._configurator.getOption(option);\n }\n /**\n * Whether the option exists or not.\n */\n hasOption(option) {\n return this._configurator.hasOption(option);\n }\n /**\n * Set a config option for the editor.\n */\n setOption(option, value) {\n this._configurator.setOption(option, value);\n }\n /**\n * Set config options for the editor.\n *\n * This method is preferred when setting several options. The\n * options are set within an operation, which only performs\n * the costly update at the end, and not after every option\n * is set.\n */\n setOptions(options) {\n this._configurator.setOptions(options);\n }\n /**\n * Inject an extension into the editor\n *\n * @alpha\n * @experimental\n * @param ext CodeMirror 6 extension\n */\n injectExtension(ext) {\n this._configurator.injectExtension(this._editor, ext);\n }\n /**\n * Returns the content for the given line number.\n */\n getLine(line) {\n // TODO: CM6 remove +1 when CM6 first line number has propagated\n line = line + 1;\n return line <= this.doc.lines ? this.doc.line(line).text : undefined;\n }\n /**\n * Find an offset for the given position.\n */\n getOffsetAt(position) {\n // TODO: CM6 remove +1 when CM6 first line number has propagated\n return this.doc.line(position.line + 1).from + position.column;\n }\n /**\n * Find a position for the given offset.\n */\n getPositionAt(offset) {\n // TODO: CM6 remove -1 when CM6 first line number has propagated\n const line = this.doc.lineAt(offset);\n return { line: line.number - 1, column: offset - line.from };\n }\n /**\n * Undo one edit (if any undo events are stored).\n */\n undo() {\n this.model.sharedModel.undo();\n }\n /**\n * Redo one undone edit.\n */\n redo() {\n this.model.sharedModel.redo();\n }\n /**\n * Clear the undo history.\n */\n clearHistory() {\n this.model.sharedModel.clearUndoHistory();\n }\n /**\n * Brings browser focus to this editor text.\n */\n focus() {\n this._editor.focus();\n }\n /**\n * Test whether the editor has keyboard focus.\n */\n hasFocus() {\n return this._editor.hasFocus;\n }\n /**\n * Explicitly blur the editor.\n */\n blur() {\n this._editor.contentDOM.blur();\n }\n get state() {\n return this._editor.state;\n }\n firstLine() {\n // TODO: return 1 when CM6 first line number has propagated\n return 0;\n }\n lastLine() {\n return this.doc.lines - 1;\n }\n cursorCoords(where, mode) {\n const selection = this.state.selection.main;\n const pos = where ? selection.from : selection.to;\n const rect = this.editor.coordsAtPos(pos);\n return rect;\n }\n getRange(from, to, separator) {\n const fromOffset = this.getOffsetAt(this._toPosition(from));\n const toOffset = this.getOffsetAt(this._toPosition(to));\n return this.state.sliceDoc(fromOffset, toOffset);\n }\n /**\n * Reveal the given position in the editor.\n */\n revealPosition(position) {\n const offset = this.getOffsetAt(position);\n this._editor.dispatch({\n effects: EditorView.scrollIntoView(offset)\n });\n }\n /**\n * Reveal the given selection in the editor.\n */\n revealSelection(selection) {\n const start = this.getOffsetAt(selection.start);\n const end = this.getOffsetAt(selection.end);\n this._editor.dispatch({\n effects: EditorView.scrollIntoView(EditorSelection.range(start, end))\n });\n }\n /**\n * Get the window coordinates given a cursor position.\n */\n getCoordinateForPosition(position) {\n const offset = this.getOffsetAt(position);\n const rect = this.editor.coordsAtPos(offset);\n return rect;\n }\n /**\n * Get the cursor position given window coordinates.\n *\n * @param coordinate - The desired coordinate.\n *\n * @returns The position of the coordinates, or null if not\n * contained in the editor.\n */\n getPositionForCoordinate(coordinate) {\n const offset = this.editor.posAtCoords({\n x: coordinate.left,\n y: coordinate.top\n });\n return this.getPositionAt(offset) || null;\n }\n /**\n * Returns the primary position of the cursor, never `null`.\n */\n getCursorPosition() {\n const offset = this.state.selection.main.head;\n return this.getPositionAt(offset);\n }\n /**\n * Set the primary position of the cursor.\n *\n * #### Notes\n * This will remove any secondary cursors.\n */\n setCursorPosition(position, options) {\n const offset = this.getOffsetAt(position);\n this.editor.dispatch({\n selection: { anchor: offset },\n scrollIntoView: true\n });\n // If the editor does not have focus, this cursor change\n // will get screened out in _onCursorsChanged(). Make an\n // exception for this method.\n if (!this.editor.hasFocus) {\n this.model.selections.set(this.uuid, this.getSelections());\n }\n }\n /**\n * Returns the primary selection, never `null`.\n */\n getSelection() {\n return this.getSelections()[0];\n }\n /**\n * Set the primary selection. This will remove any secondary cursors.\n */\n setSelection(selection) {\n this.setSelections([selection]);\n }\n /**\n * Gets the selections for all the cursors, never `null` or empty.\n */\n getSelections() {\n const selections = this.state.selection.ranges; //= [{anchor: number, head: number}]\n if (selections.length > 0) {\n const sel = selections.map(r => ({\n anchor: this._toCodeMirrorPosition(this.getPositionAt(r.from)),\n head: this._toCodeMirrorPosition(this.getPositionAt(r.to))\n }));\n return sel.map(selection => this._toSelection(selection));\n }\n const cursor = this._toCodeMirrorPosition(this.getPositionAt(this.state.selection.main.head));\n const selection = this._toSelection({ anchor: cursor, head: cursor });\n return [selection];\n }\n /**\n * Sets the selections for all the cursors, should not be empty.\n * Cursors will be removed or added, as necessary.\n * Passing an empty array resets a cursor position to the start of a document.\n */\n setSelections(selections) {\n const sel = selections.length\n ? selections.map(r => EditorSelection.range(this.getOffsetAt(r.start), this.getOffsetAt(r.end)))\n : [EditorSelection.range(0, 0)];\n this.editor.dispatch({ selection: EditorSelection.create(sel) });\n }\n /**\n * Replaces the current selection with the given text.\n *\n * Behaviour for multiple selections is undefined.\n *\n * @param text The text to be inserted.\n */\n replaceSelection(text) {\n const firstSelection = this.getSelections()[0];\n this.model.sharedModel.updateSource(this.getOffsetAt(firstSelection.start), this.getOffsetAt(firstSelection.end), text);\n const newPosition = this.getPositionAt(this.getOffsetAt(firstSelection.start) + text.length);\n this.setSelection({ start: newPosition, end: newPosition });\n }\n /**\n * Get a list of tokens for the current editor text content.\n */\n getTokens() {\n const tokens = [];\n const tree = ensureSyntaxTree(this.state, this.doc.length);\n if (tree) {\n tree.iterate({\n enter: (ref) => {\n if (ref.node.firstChild === null) {\n tokens.push({\n value: this.state.sliceDoc(ref.from, ref.to),\n offset: ref.from,\n type: ref.name\n });\n }\n return true;\n }\n });\n }\n return tokens;\n }\n /**\n * Get the token at a given editor position.\n */\n getTokenAt(offset) {\n const tree = ensureSyntaxTree(this.state, offset);\n let token = null;\n if (tree) {\n tree.iterate({\n enter: (ref) => {\n // If a token has already been discovered, stop iterating.\n if (token) {\n return false;\n }\n // If it is not a leaf, keep iterating.\n if (ref.node.firstChild) {\n return true;\n }\n // If the relevant leaf token has been found, stop iterating.\n if (offset >= ref.from && offset <= ref.to) {\n token = {\n value: this.state.sliceDoc(ref.from, ref.to),\n offset: ref.from,\n type: ref.name\n };\n return false;\n }\n return true;\n }\n });\n }\n return token || { offset, value: '' };\n }\n /**\n * Get the token a the cursor position.\n */\n getTokenAtCursor() {\n return this.getTokenAt(this.state.selection.main.head);\n }\n /**\n * Insert a new indented line at the current cursor position.\n */\n newIndentedLine() {\n insertNewlineAndIndent({\n state: this.state,\n dispatch: this.editor.dispatch\n });\n }\n /**\n * Execute a codemirror command on the editor.\n *\n * @param command - The name of the command to execute.\n */\n execCommand(command) {\n command(this.editor);\n }\n onConfigChanged(configurator, changes) {\n configurator.reconfigureExtensions(this._editor, changes);\n }\n /**\n * Handle keydown events from the editor.\n */\n onKeydown(event) {\n const position = this.state.selection.main.head;\n if (position === 0 && event.keyCode === UP_ARROW) {\n if (!event.shiftKey) {\n this.edgeRequested.emit('top');\n }\n return false;\n }\n const line = this.doc.lineAt(position).number;\n if (line === 1 && event.keyCode === UP_ARROW) {\n if (!event.shiftKey) {\n this.edgeRequested.emit('topLine');\n }\n return false;\n }\n const length = this.doc.length;\n if (position === length && event.keyCode === DOWN_ARROW) {\n if (!event.shiftKey) {\n this.edgeRequested.emit('bottom');\n }\n return false;\n }\n return false;\n }\n /**\n * Handles a mime type change.\n */\n _onMimeTypeChanged() {\n // TODO: should we provide a hook for when the mode is done being set?\n this._languages\n .getLanguage(this._model.mimeType)\n .then(language => {\n var _a;\n this._editor.dispatch({\n effects: this._language.reconfigure((_a = language === null || language === void 0 ? void 0 : language.support) !== null && _a !== void 0 ? _a : [])\n });\n })\n .catch(reason => {\n console.log(`Failed to load language for '${this._model.mimeType}'.`, reason);\n this._editor.dispatch({\n effects: this._language.reconfigure([])\n });\n });\n }\n /**\n * Handles a cursor activity event.\n */\n _onCursorActivity() {\n // Only add selections if the editor has focus. This avoids unwanted\n // triggering of cursor activity due to collaborator actions.\n if (this._editor.hasFocus) {\n const selections = this.getSelections();\n this.model.selections.set(this.uuid, selections);\n }\n }\n /**\n * Converts a code mirror selection to an editor selection.\n */\n _toSelection(selection) {\n return {\n uuid: this.uuid,\n start: this._toPosition(selection.anchor),\n end: this._toPosition(selection.head)\n };\n }\n /**\n * Convert a code mirror position to an editor position.\n */\n _toPosition(position) {\n return {\n line: position.line,\n column: position.ch\n };\n }\n /**\n * Convert an editor position to a code mirror position.\n */\n _toCodeMirrorPosition(position) {\n return {\n line: position.line,\n ch: position.column\n };\n }\n /**\n * Handles document changes.\n */\n _onDocChanged(update) {\n if (update.transactions.length && update.transactions[0].selection) {\n this._onCursorActivity();\n }\n }\n /**\n * Handle the DOM events for the editor.\n *\n * @param event - The DOM event sent to the editor.\n *\n * #### Notes\n * This method implements the DOM `EventListener` interface and is\n * called in response to events on the editor's DOM node. It should\n * not be called directly by user code.\n */\n handleEvent(event) {\n switch (event.type) {\n case 'focus':\n this._evtFocus(event);\n break;\n case 'blur':\n this._evtBlur(event);\n break;\n default:\n break;\n }\n }\n /**\n * Handle `focus` events for the editor.\n */\n _evtFocus(event) {\n this.host.classList.add('jp-mod-focused');\n // Update the selections on editor gaining focus because\n // the onCursorActivity function filters usual cursor events\n // based on the editor's focus.\n this._onCursorActivity();\n }\n /**\n * Handle `blur` events for the editor.\n */\n _evtBlur(event) {\n this.host.classList.remove('jp-mod-focused');\n }\n}\n/**\n * The namespace for module private data.\n */\nvar Private;\n(function (Private) {\n function createEditor(host, editorConfig, additionalExtensions, doc) {\n const extensions = editorConfig.getInitialExtensions();\n extensions.push(...additionalExtensions);\n const view = new EditorView({\n state: EditorState.create({\n doc,\n extensions\n }),\n parent: host\n });\n return view;\n }\n Private.createEditor = createEditor;\n})(Private || (Private = {}));\n//# sourceMappingURL=editor.js.map","// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\nimport { EditorSelection, StateEffect, StateField } from '@codemirror/state';\nimport { Decoration, EditorView } from '@codemirror/view';\nimport { GenericSearchProvider, TextSearchEngine } from '@jupyterlab/documentsearch';\nimport { Signal } from '@lumino/signaling';\n/**\n * Search provider for editors.\n */\nexport class EditorSearchProvider {\n /**\n * Constructor\n */\n constructor() {\n /**\n * Current match index\n */\n this.currentIndex = null;\n /**\n * Current search query\n */\n this.query = null;\n this._isActive = true;\n this._inSelection = null;\n this._isDisposed = false;\n this._cmHandler = null;\n this.currentIndex = null;\n this._stateChanged = new Signal(this);\n }\n /**\n * CodeMirror search highlighter\n */\n get cmHandler() {\n if (!this._cmHandler) {\n this._cmHandler = new CodeMirrorSearchHighlighter(this.editor);\n }\n return this._cmHandler;\n }\n /**\n * Changed signal to be emitted when search matches change.\n */\n get stateChanged() {\n return this._stateChanged;\n }\n /**\n * Current match index\n */\n get currentMatchIndex() {\n return this.isActive ? this.currentIndex : null;\n }\n /**\n * Whether the cell search is active.\n *\n * This is used when applying search only on selected cells.\n */\n get isActive() {\n return this._isActive;\n }\n /**\n * Whether the search provider is disposed or not.\n */\n get isDisposed() {\n return this._isDisposed;\n }\n /**\n * Number of matches in the cell.\n */\n get matchesCount() {\n return this.isActive ? this.cmHandler.matches.length : 0;\n }\n /**\n * Clear currently highlighted match\n */\n clearHighlight() {\n this.currentIndex = null;\n this.cmHandler.clearHighlight();\n return Promise.resolve();\n }\n /**\n * Dispose the search provider\n */\n dispose() {\n if (this._isDisposed) {\n return;\n }\n this._isDisposed = true;\n Signal.clearData(this);\n if (this.isActive) {\n this.endQuery().catch(reason => {\n console.error(`Failed to end search query on cells.`, reason);\n });\n }\n }\n /**\n * Set `isActive` status.\n *\n * #### Notes\n * It will start or end the search\n *\n * @param v New value\n */\n async setIsActive(v) {\n if (this._isActive === v) {\n return;\n }\n this._isActive = v;\n if (this._isActive) {\n if (this.query !== null) {\n await this.startQuery(this.query, this.filters);\n }\n }\n else {\n await this.endQuery();\n }\n }\n /**\n * Set whether search should be limitted to specified text selection.\n */\n async setSearchSelection(selection) {\n if (this._inSelection === selection) {\n return;\n }\n this._inSelection = selection;\n await this.updateCodeMirror(this.model.sharedModel.getSource());\n this._stateChanged.emit();\n }\n /**\n * Set whether user selection should be protected from modifications.\n *\n * If disabled, the selection will be updated on search and on editor focus\n * to cover the current match. We need to protect selection from modifications\n * for both: search in text and search in cells; since `setSearchSelection`\n * is only telling us about search in text, we need to have an additional\n * way to signal that either search in text or in cells is active, or for\n * any other reason selection range should be protected.\n */\n setProtectSelection(v) {\n this.cmHandler.protectSelection = v;\n }\n /**\n * Initialize the search using the provided options. Should update the UI\n * to highlight all matches and \"select\" the first match.\n *\n * @param query A RegExp to be use to perform the search\n * @param filters Filter parameters to pass to provider\n */\n async startQuery(query, filters) {\n this.query = query;\n this.filters = filters;\n // Search input\n const content = this.model.sharedModel.getSource();\n await this.updateCodeMirror(content);\n this.model.sharedModel.changed.connect(this.onSharedModelChanged, this);\n }\n /**\n * Stop the search and clean any UI elements.\n */\n async endQuery() {\n await this.clearHighlight();\n await this.cmHandler.endQuery();\n this.currentIndex = null;\n }\n /**\n * Highlight the next match.\n *\n * @returns The next match if there is one.\n */\n async highlightNext(loop = true, options) {\n if (this.matchesCount === 0 || !this.isActive) {\n this.currentIndex = null;\n }\n else {\n let match = await this.cmHandler.highlightNext(options);\n if (match) {\n this.currentIndex = this.cmHandler.currentIndex;\n }\n else {\n // Note: the loop logic is only used in single-editor (e.g. file editor)\n // provider sub-classes, notebook has it's own loop logic and ignores\n // `currentIndex` as set here.\n this.currentIndex = loop ? 0 : null;\n }\n return match;\n }\n return Promise.resolve(this.getCurrentMatch());\n }\n /**\n * Highlight the previous match.\n *\n * @returns The previous match if there is one.\n */\n async highlightPrevious(loop = true, options) {\n if (this.matchesCount === 0 || !this.isActive) {\n this.currentIndex = null;\n }\n else {\n let match = await this.cmHandler.highlightPrevious(options);\n if (match) {\n this.currentIndex = this.cmHandler.currentIndex;\n }\n else {\n this.currentIndex = loop ? this.matchesCount - 1 : null;\n }\n return match;\n }\n return Promise.resolve(this.getCurrentMatch());\n }\n /**\n * Replace the currently selected match with the provided text.\n *\n * If no match is selected, it won't do anything.\n *\n * The caller of this method is expected to call `highlightNext` if after\n * calling `replaceCurrentMatch()` attribute `this.currentIndex` is null.\n * It is necesary to let the caller handle highlighting because this\n * method is used in composition pattern (search engine of notebook cells)\n * and highligthing on the composer (notebook) level needs to switch to next\n * engine (cell) with matches.\n *\n * @param newText The replacement text.\n * @returns Whether a replace occurred.\n */\n replaceCurrentMatch(newText, loop, options) {\n if (!this.isActive) {\n return Promise.resolve(false);\n }\n let occurred = false;\n if (this.currentIndex !== null &&\n this.currentIndex < this.cmHandler.matches.length) {\n const match = this.getCurrentMatch();\n // If cursor there is no match selected, highlight the next match\n if (!match) {\n this.currentIndex = null;\n }\n else {\n this.cmHandler.matches.splice(this.currentIndex, 1);\n this.currentIndex =\n this.currentIndex < this.cmHandler.matches.length\n ? Math.max(this.currentIndex - 1, 0)\n : null;\n const substitutedText = (options === null || options === void 0 ? void 0 : options.regularExpression)\n ? match.text.replace(this.query, newText)\n : newText;\n const insertText = (options === null || options === void 0 ? void 0 : options.preserveCase)\n ? GenericSearchProvider.preserveCase(match.text, substitutedText)\n : substitutedText;\n this.model.sharedModel.updateSource(match.position, match.position + match.text.length, insertText);\n occurred = true;\n }\n }\n return Promise.resolve(occurred);\n }\n /**\n * Replace all matches in the cell source with the provided text\n *\n * @param newText The replacement text.\n * @returns Whether a replace occurred.\n */\n replaceAllMatches(newText, options) {\n if (!this.isActive) {\n return Promise.resolve(false);\n }\n let occurred = this.cmHandler.matches.length > 0;\n let src = this.model.sharedModel.getSource();\n let lastEnd = 0;\n const finalSrc = this.cmHandler.matches.reduce((agg, match) => {\n const start = match.position;\n const end = start + match.text.length;\n const substitutedText = (options === null || options === void 0 ? void 0 : options.regularExpression)\n ? match.text.replace(this.query, newText)\n : newText;\n const insertText = (options === null || options === void 0 ? void 0 : options.preserveCase)\n ? GenericSearchProvider.preserveCase(match.text, substitutedText)\n : substitutedText;\n const newStep = `${agg}${src.slice(lastEnd, start)}${insertText}`;\n lastEnd = end;\n return newStep;\n }, '');\n if (occurred) {\n this.cmHandler.matches = [];\n this.currentIndex = null;\n this.model.sharedModel.setSource(`${finalSrc}${src.slice(lastEnd)}`);\n }\n return Promise.resolve(occurred);\n }\n /**\n * Get the current match if it exists.\n *\n * @returns The current match\n */\n getCurrentMatch() {\n if (this.currentIndex === null) {\n return undefined;\n }\n else {\n let match = undefined;\n if (this.currentIndex < this.cmHandler.matches.length) {\n match = this.cmHandler.matches[this.currentIndex];\n }\n return match;\n }\n }\n /**\n * Callback on source change\n *\n * @param emitter Source of the change\n * @param changes Source change\n */\n async onSharedModelChanged(emitter, changes) {\n if (changes.sourceChange) {\n await this.updateCodeMirror(emitter.getSource());\n this._stateChanged.emit();\n }\n }\n /**\n * Update matches\n */\n async updateCodeMirror(content) {\n if (this.query !== null && this.isActive) {\n const allMatches = await TextSearchEngine.search(this.query, content);\n if (this._inSelection) {\n const editor = this.editor;\n const start = editor.getOffsetAt(this._inSelection.start);\n const end = editor.getOffsetAt(this._inSelection.end);\n this.cmHandler.matches = allMatches.filter(match => match.position >= start && match.position <= end);\n // A special case to always have a current match when in line selection mode.\n if (this.cmHandler.currentIndex === null &&\n this.cmHandler.matches.length > 0) {\n await this.cmHandler.highlightNext({\n from: 'selection',\n select: false,\n scroll: false\n });\n }\n this.currentIndex = this.cmHandler.currentIndex;\n }\n else {\n this.cmHandler.matches = allMatches;\n }\n }\n else {\n this.cmHandler.matches = [];\n }\n }\n}\n/**\n * Helper class to highlight texts in a code mirror editor.\n *\n * Highlighted texts (aka `matches`) must be provided through\n * the `matches` attributes.\n *\n * **NOTES:**\n * - to retain the selection visibility `drawSelection` extension is needed.\n * - highlighting starts from the cursor (if editor is focused and `from` is set\n * to `'auto'`, cursor moved, or `from` argument is set to `'selection'` or\n * `'selection-start'`), or from last \"current\" match otherwise.\n * - `currentIndex` is the (readonly) source of truth for the current match.\n */\nexport class CodeMirrorSearchHighlighter {\n /**\n * Constructor\n *\n * @param editor The CodeMirror editor\n */\n constructor(editor) {\n this._current = null;\n this._cm = editor;\n this._matches = new Array();\n this._currentIndex = null;\n this._highlightEffect = StateEffect.define({\n map: (value, mapping) => {\n const transform = (v) => ({\n text: v.text,\n position: mapping.mapPos(v.position)\n });\n return {\n matches: value.matches.map(transform),\n currentMatch: value.currentMatch\n ? transform(value.currentMatch)\n : null\n };\n }\n });\n this._highlightMark = Decoration.mark({ class: 'cm-searching' });\n this._currentMark = Decoration.mark({ class: 'jp-current-match' });\n this._highlightField = StateField.define({\n create: () => {\n return Decoration.none;\n },\n update: (highlights, transaction) => {\n highlights = highlights.map(transaction.changes);\n for (let ef of transaction.effects) {\n if (ef.is(this._highlightEffect)) {\n const e = ef;\n if (e.value.matches.length) {\n // Note: nesting will vary; sometimes `.cm-searching` will be\n // inside `.jp-current-match`, sometime the other way round.\n highlights = highlights.update({\n add: e.value.matches.map(m => this._highlightMark.range(m.position, m.position + m.text.length)),\n // filter out old marks\n filter: () => false\n });\n highlights = highlights.update({\n add: e.value.currentMatch\n ? [\n this._currentMark.range(e.value.currentMatch.position, e.value.currentMatch.position +\n e.value.currentMatch.text.length)\n ]\n : []\n });\n }\n else {\n highlights = Decoration.none;\n }\n }\n }\n return highlights;\n },\n provide: f => EditorView.decorations.from(f)\n });\n this._domEventHandlers = EditorView.domEventHandlers({\n focus: () => {\n // Set cursor on active match when editor gets focused.\n this._selectCurrentMatch();\n }\n });\n }\n /**\n * The current index of the selected match.\n */\n get currentIndex() {\n return this._currentIndex;\n }\n /**\n * The list of matches\n */\n get matches() {\n return this._matches;\n }\n set matches(v) {\n this._matches = v;\n if (this._currentIndex !== null &&\n this._currentIndex > this._matches.length) {\n this._currentIndex = this._matches.length > 0 ? 0 : null;\n }\n this._highlightCurrentMatch({ select: false });\n }\n /**\n * Whether the cursor/selection should not be modified.\n */\n get protectSelection() {\n return this._protectSelection;\n }\n set protectSelection(v) {\n this._protectSelection = v;\n }\n /**\n * Clear all highlighted matches\n */\n clearHighlight() {\n this._currentIndex = null;\n this._highlightCurrentMatch();\n }\n /**\n * Clear the highlighted matches.\n */\n endQuery() {\n this._currentIndex = null;\n this._matches = [];\n if (this._cm) {\n this._cm.editor.dispatch({\n effects: this._highlightEffect.of({ matches: [], currentMatch: null })\n });\n }\n return Promise.resolve();\n }\n /**\n * Highlight the next match\n *\n * @returns The next match if available\n */\n highlightNext(options) {\n var _a;\n this._currentIndex = this._findNext(false, (_a = options === null || options === void 0 ? void 0 : options.from) !== null && _a !== void 0 ? _a : 'auto');\n this._highlightCurrentMatch(options);\n return Promise.resolve(this._currentIndex !== null\n ? this._matches[this._currentIndex]\n : undefined);\n }\n /**\n * Highlight the previous match\n *\n * @returns The previous match if available\n */\n highlightPrevious(options) {\n var _a;\n this._currentIndex = this._findNext(true, (_a = options === null || options === void 0 ? void 0 : options.from) !== null && _a !== void 0 ? _a : 'auto');\n this._highlightCurrentMatch(options);\n return Promise.resolve(this._currentIndex !== null\n ? this._matches[this._currentIndex]\n : undefined);\n }\n /**\n * Set the editor\n *\n * @param editor Editor\n */\n setEditor(editor) {\n if (this._cm) {\n throw new Error('CodeMirrorEditor already set.');\n }\n else {\n this._cm = editor;\n if (this._currentIndex !== null) {\n this._highlightCurrentMatch();\n }\n this._cm.editor.dispatch({\n effects: StateEffect.appendConfig.of(this._domEventHandlers)\n });\n this._refresh();\n }\n }\n _selectCurrentMatch(scroll = true) {\n // This method has two responsibilities:\n // 1) Scroll the current match into the view - useful for long lines,\n // and file editors with more lines that fit on the screen\n // 2) When user has focus on the editor (not search box) and presses\n // ctrl + g/ctrl + shift + g to jump to next match they want their\n // cursor to jump too.\n // We execute (1) and (2) together as CodeMirror has a special code path\n // to handle both in a single dispatch.\n // The (2) case is inapplicable to search in selection mode, as it would\n // invalidate the query selection, so in that case we only execute (1).\n const match = this._current;\n if (!match) {\n return;\n }\n if (!this._cm) {\n return;\n }\n const cursor = {\n anchor: match.position,\n head: match.position + match.text.length\n };\n const selection = this._cm.editor.state.selection.main;\n if ((selection.from === match.position &&\n selection.to === match.position + match.text.length) ||\n this._protectSelection) {\n // Correct selection is already set or search is restricted to selection:\n // scroll without changing the selection.\n if (scroll) {\n this._cm.editor.dispatch({\n effects: EditorView.scrollIntoView(EditorSelection.range(cursor.anchor, cursor.head))\n });\n return;\n }\n }\n else {\n this._cm.editor.dispatch({\n selection: cursor,\n scrollIntoView: scroll\n });\n }\n }\n _highlightCurrentMatch(options) {\n var _a, _b, _c;\n if (!this._cm) {\n // no-op\n return;\n }\n // Highlight the current index\n if (this._currentIndex !== null) {\n const match = this.matches[this._currentIndex];\n this._current = match;\n // We do not change selection nor scroll if:\n // - user is selecting text,\n // - document was modified\n if ((_a = options === null || options === void 0 ? void 0 : options.select) !== null && _a !== void 0 ? _a : true) {\n if (this._cm.hasFocus()) {\n // If editor is focused we actually set the cursor on the match.\n this._selectCurrentMatch((_b = options === null || options === void 0 ? void 0 : options.scroll) !== null && _b !== void 0 ? _b : true);\n }\n else if ((_c = options === null || options === void 0 ? void 0 : options.scroll) !== null && _c !== void 0 ? _c : true) {\n // otherwise we just scroll to preserve the selection.\n this._cm.editor.dispatch({\n effects: EditorView.scrollIntoView(match.position)\n });\n }\n }\n }\n else {\n this._current = null;\n }\n this._refresh();\n }\n _refresh() {\n if (!this._cm) {\n // no-op\n return;\n }\n let effects = [\n this._highlightEffect.of({\n matches: this.matches,\n currentMatch: this._current\n })\n ];\n if (!this._cm.state.field(this._highlightField, false)) {\n effects.push(StateEffect.appendConfig.of([this._highlightField]));\n }\n this._cm.editor.dispatch({ effects });\n }\n _findNext(reverse, from = 'auto') {\n if (this._matches.length === 0) {\n // No-op\n return null;\n }\n let lastPosition = 0;\n if ((from === 'auto' && this._cm.hasFocus()) || from === 'selection') {\n const cursor = this._cm.state.selection.main;\n lastPosition = reverse ? cursor.anchor : cursor.head;\n }\n else if (from === 'selection-start') {\n const cursor = this._cm.state.selection.main;\n lastPosition = Math.min(cursor.anchor, cursor.head);\n }\n else if (from === 'start') {\n lastPosition = 0;\n }\n else if (this._current) {\n lastPosition = reverse\n ? this._current.position\n : this._current.position + this._current.text.length;\n }\n if (lastPosition === 0 && reverse && this.currentIndex === null) {\n // The default position is (0, 0) but we want to start from the end in that case\n lastPosition = this._cm.doc.length;\n }\n const position = lastPosition;\n let found = Utils.findNext(this._matches, position, 0, this._matches.length - 1);\n if (found === null) {\n // Don't loop\n return reverse ? this._matches.length - 1 : null;\n }\n if (reverse) {\n found -= 1;\n if (found < 0) {\n // Don't loop\n return null;\n }\n }\n return found;\n }\n}\n/**\n * Helpers namespace\n */\nvar Utils;\n(function (Utils) {\n /**\n * Find the closest match at `position` just after it.\n *\n * #### Notes\n * Search is done using a binary search algorithm\n *\n * @param matches List of matches\n * @param position Searched position\n * @param lowerBound Lower range index\n * @param higherBound High range index\n * @returns The next match or null if none exists\n */\n function findNext(matches, position, lowerBound = 0, higherBound = Infinity) {\n higherBound = Math.min(matches.length - 1, higherBound);\n while (lowerBound <= higherBound) {\n let middle = Math.floor(0.5 * (lowerBound + higherBound));\n const currentPosition = matches[middle].position;\n if (currentPosition < position) {\n lowerBound = middle + 1;\n if (lowerBound < matches.length &&\n matches[lowerBound].position > position) {\n return lowerBound;\n }\n }\n else if (currentPosition > position) {\n higherBound = middle - 1;\n if (higherBound > 0 && matches[higherBound].position < position) {\n return middle;\n }\n }\n else {\n return middle;\n }\n }\n // Next could be the first item\n const first = lowerBound > 0 ? lowerBound - 1 : 0;\n const match = matches[first];\n return match.position >= position ? first : null;\n }\n Utils.findNext = findNext;\n})(Utils || (Utils = {}));\n//# sourceMappingURL=searchprovider.js.map","/*\n * Copyright (c) Jupyter Development Team.\n * Distributed under the terms of the Modified BSD License.\n */\nimport { Token } from '@lumino/coreutils';\n/**\n * Editor language token.\n */\nexport const IEditorExtensionRegistry = new Token('@jupyterlab/codemirror:IEditorExtensionRegistry', `A registry for CodeMirror extension factories.`);\n/**\n * Editor language token.\n */\nexport const IEditorLanguageRegistry = new Token('@jupyterlab/codemirror:IEditorLanguageRegistry', 'A registry for CodeMirror languages.');\n/**\n * Editor theme token.\n */\nexport const IEditorThemeRegistry = new Token('@jupyterlab/codemirror:IEditorThemeRegistry', 'A registry for CodeMirror theme.');\n//# sourceMappingURL=token.js.map","// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\nimport { style as typestyleClass } from 'typestyle/lib';\nexport var LabIconStyle;\n(function (LabIconStyle) {\n /**\n * The builtin stylesheets\n */\n const builtinSheets = {\n breadCrumb: {\n container: {\n $nest: {\n // `&` will be substituted for the generated classname (interpolation)\n '&:first-child svg': {\n bottom: '1px',\n marginLeft: '0px',\n position: 'relative'\n },\n '&:hover': {\n backgroundColor: 'var(--jp-layout-color2)'\n },\n ['.jp-mod-dropTarget&']: {\n backgroundColor: 'var(--jp-brand-color2)',\n opacity: 0.7\n }\n }\n },\n element: {\n borderRadius: 'var(--jp-border-radius)',\n cursor: 'pointer',\n margin: '0px 2px',\n padding: '0px 2px',\n height: '16px',\n width: '16px',\n verticalAlign: 'middle'\n }\n },\n commandPaletteHeader: {\n container: {\n height: '14px',\n margin: '0 14px 0 auto'\n },\n element: {\n height: '14px',\n width: '14px'\n },\n options: {\n elementPosition: 'center'\n }\n },\n commandPaletteItem: {\n element: {\n height: '16px',\n width: '16px'\n },\n options: {\n elementPosition: 'center'\n }\n },\n launcherCard: {\n container: {\n height: '52px',\n width: '52px'\n },\n element: {\n height: '52px',\n width: '52px'\n },\n options: {\n elementPosition: 'center'\n }\n },\n launcherSection: {\n container: {\n boxSizing: 'border-box',\n marginRight: '12px',\n height: '32px',\n width: '32px'\n },\n element: {\n height: '32px',\n width: '32px'\n },\n options: {\n elementPosition: 'center'\n }\n },\n listing: {\n container: {\n flex: '0 0 20px',\n marginRight: '4px',\n position: 'relative'\n },\n element: {\n height: '16px',\n width: '16px'\n },\n options: {\n elementPosition: 'center'\n }\n },\n listingHeaderItem: {\n container: {\n display: 'inline',\n height: '16px',\n width: '16px'\n },\n element: {\n height: 'auto',\n margin: '-2px 0 0 0',\n width: '20px'\n },\n options: {\n elementPosition: 'center'\n }\n },\n mainAreaTab: {\n container: {\n $nest: {\n '.lm-DockPanel-tabBar &': {\n marginRight: '4px'\n }\n }\n },\n element: {\n $nest: {\n '.lm-DockPanel-tabBar &': {\n height: '14px',\n width: '14px'\n }\n }\n },\n options: {\n elementPosition: 'center'\n }\n },\n menuItem: {\n container: {\n display: 'inline-block',\n verticalAlign: 'middle'\n },\n element: {\n height: '16px',\n width: '16px'\n },\n options: {\n elementPosition: 'center'\n }\n },\n runningItem: {\n container: {\n margin: '0px 4px 0px 4px'\n },\n element: {\n height: '16px',\n width: '16px'\n },\n options: {\n elementPosition: 'center'\n }\n },\n select: {\n container: {\n pointerEvents: 'none'\n },\n element: {\n position: 'absolute',\n height: 'auto',\n width: '16px'\n }\n },\n settingsEditor: {\n container: {\n display: 'flex',\n flex: '0 0 20px',\n margin: '0 3px 0 0',\n position: 'relative',\n height: '20px',\n width: '20px'\n },\n element: {\n height: '16px',\n width: '16px'\n },\n options: {\n elementPosition: 'center'\n }\n },\n sideBar: {\n element: {\n height: 'auto',\n width: '20px'\n },\n options: {\n elementPosition: 'center'\n }\n },\n splash: {\n container: {\n animation: '0.3s fade-in linear forwards',\n height: '100%',\n width: '100%',\n zIndex: 1\n },\n element: {\n // width no height\n width: '100px'\n },\n options: {\n elementPosition: 'center'\n }\n },\n statusBar: {\n element: {\n left: '0px',\n top: '0px',\n height: '18px',\n width: '20px',\n position: 'relative'\n }\n },\n toolbarButton: {\n container: {\n display: 'inline-block',\n verticalAlign: 'middle'\n },\n element: {\n height: '16px',\n width: '16px'\n },\n options: {\n elementPosition: 'center'\n }\n }\n };\n function _elementPositionFactory(extra) {\n return {\n container: {\n alignItems: 'center',\n display: 'flex'\n },\n element: {\n display: 'block',\n ...extra\n }\n };\n }\n /**\n * Styles to help with positioning\n */\n const positionSheets = {\n center: _elementPositionFactory({ margin: '0 auto', width: '100%' }),\n top: _elementPositionFactory({ margin: '0 0 auto 0' }),\n right: _elementPositionFactory({ margin: '0 0 0 auto' }),\n bottom: _elementPositionFactory({ margin: 'auto 0 0 0' }),\n left: _elementPositionFactory({ margin: '0 auto 0 0' }),\n 'top right': _elementPositionFactory({ margin: '0 0 auto auto' }),\n 'bottom right': _elementPositionFactory({ margin: 'auto 0 0 auto' }),\n 'bottom left': _elementPositionFactory({ margin: 'auto auto 0 0' }),\n 'top left': _elementPositionFactory({ margin: '0 auto 0 auto' })\n };\n function _elementSizeFactory(size) {\n return {\n element: {\n height: size,\n width: size\n }\n };\n }\n /**\n * sheets that establish some default sizes\n */\n const sizeSheets = {\n small: _elementSizeFactory('14px'),\n normal: _elementSizeFactory('16px'),\n large: _elementSizeFactory('20px'),\n xlarge: _elementSizeFactory('24px')\n };\n /**\n * Merge two or more icon sheets into a single \"pure\"\n * icon style (ie collections of CSS props only)\n */\n function mergeSheets(sheets) {\n return {\n container: Object.assign({}, ...sheets.map(s => s.container)),\n element: Object.assign({}, ...sheets.map(s => s.element))\n };\n }\n /**\n * Resolve one or more stylesheets that may just be a string naming\n * one of the builtin stylesheets to an array of proper ISheet objects\n */\n function resolveSheet(stylesheet) {\n if (!stylesheet) {\n return [];\n }\n if (!Array.isArray(stylesheet)) {\n // wrap in array\n stylesheet = [stylesheet];\n }\n return stylesheet.map(k => (typeof k === 'string' ? builtinSheets[k] : k));\n }\n /**\n * Resolve and merge multiple icon stylesheets\n */\n function applySheetOptions(sheets) {\n const options = Object.assign({}, ...sheets.map(s => s.options));\n if (options.elementPosition) {\n sheets.unshift(positionSheets[options.elementPosition]);\n }\n if (options.elementSize) {\n sheets.unshift(sizeSheets[options.elementSize]);\n }\n return mergeSheets(sheets);\n }\n /**\n * Resolve a pure icon stylesheet into a typestyle class\n */\n function resolveStyleClass(stylesheet) {\n var _a;\n return typestyleClass({\n ...stylesheet.container,\n $nest: {\n ...(_a = stylesheet.container) === null || _a === void 0 ? void 0 : _a.$nest,\n ['svg']: stylesheet.element\n }\n });\n }\n // cache style classes for builtin stylesheets\n const _styleClassCache = new Map();\n /**\n * Get a typestyle class, given a set of icon styling props\n */\n function styleClass(props) {\n if (!props || Object.keys(props).length === 0) {\n // props is empty\n return '';\n }\n let { elementPosition, elementSize, stylesheet, ...elementCSS } = props;\n // add option args with defined values to overrides\n const options = {\n ...(elementPosition && { elementPosition }),\n ...(elementSize && { elementSize })\n };\n // try to look up the style class in the cache\n const cacheable = typeof stylesheet === 'string' && Object.keys(elementCSS).length === 0;\n const cacheKey = cacheable\n ? [stylesheet, elementPosition, elementSize].join(',')\n : '';\n if (cacheable && _styleClassCache.has(cacheKey)) {\n return _styleClassCache.get(cacheKey);\n }\n // resolve kind to an array of sheets, then stick overrides on the end\n const sheets = resolveSheet(stylesheet);\n sheets.push({ element: elementCSS, options });\n // apply style options/merge sheets, then convert to typestyle class\n const cls = resolveStyleClass(applySheetOptions(sheets));\n if (cacheable) {\n // store in cache for later reuse\n _styleClassCache.set(cacheKey, cls);\n }\n return cls;\n }\n LabIconStyle.styleClass = styleClass;\n})(LabIconStyle || (LabIconStyle = {}));\n//# sourceMappingURL=icon.js.map","// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\nimport { UUID } from '@lumino/coreutils';\nimport { Signal } from '@lumino/signaling';\nimport React from 'react';\nimport { createRoot } from 'react-dom/client';\nimport badSvgstr from '../../style/debug/bad.svg';\nimport blankSvgstr from '../../style/debug/blank.svg';\nimport refreshSvgstr from '../../style/icons/toolbar/refresh.svg';\nimport { LabIconStyle } from '../style';\nimport { classes, getReactAttrs } from '../utils';\nclass LabIcon {\n /** *********\n * statics *\n ***********/\n /**\n * Remove any rendered icon from the element that contains it\n *\n * @param container - a DOM node into which an icon was\n * previously rendered\n *\n * @returns the cleaned container\n */\n static remove(container) {\n // clean up all children\n while (container.firstChild) {\n container.firstChild.remove();\n }\n // remove all classes\n container.className = '';\n return container;\n }\n /**\n * Resolve an icon name or a \\{name, svgstr\\} pair into an\n * actual LabIcon.\n *\n * @param icon - either a string with the name of an existing icon\n * or an object with \\{name: string, svgstr: string\\} fields.\n *\n * @returns a LabIcon instance\n */\n static resolve({ icon }) {\n if (icon instanceof LabIcon) {\n // icon already is a LabIcon; nothing to do here\n return icon;\n }\n if (typeof icon === 'string') {\n // do a dynamic lookup of existing icon by name\n const resolved = LabIcon._instances.get(icon);\n if (resolved) {\n return resolved;\n }\n // lookup failed\n if (LabIcon._debug) {\n // fail noisily\n console.warn(`Lookup failed for icon, creating loading icon. icon: ${icon}`);\n }\n // no matching icon currently registered, create a new loading icon\n // TODO: find better icon (maybe animate?) for loading icon\n return new LabIcon({ name: icon, svgstr: refreshSvgstr, _loading: true });\n }\n // icon was provided as a non-LabIcon \\{name, svgstr\\} pair, communicating\n // an intention to create a new icon\n return new LabIcon(icon);\n }\n /**\n * Resolve an icon name or a \\{name, svgstr\\} pair into a DOM element.\n * If icon arg is undefined, the function will fall back to trying to render\n * the icon as a CSS background image, via the iconClass arg.\n * If both icon and iconClass are undefined, this function will return\n * an empty div.\n *\n * @param icon - optional, either a string with the name of an existing icon\n * or an object with \\{name: string, svgstr: string\\} fields\n *\n * @param iconClass - optional, if the icon arg is not set, the iconClass arg\n * should be a CSS class associated with an existing CSS background-image\n *\n * @param fallback - DEPRECATED, optional, a LabIcon instance that will\n * be used if neither icon nor iconClass are defined\n *\n * @param props - any additional args are passed though to the element method\n * of the resolved icon on render\n *\n * @returns a DOM node with the resolved icon rendered into it\n */\n static resolveElement({ icon, iconClass, fallback, ...props }) {\n if (!Private.isResolvable(icon)) {\n if (!iconClass && fallback) {\n // if neither icon nor iconClass are defined/resolvable, use fallback\n return fallback.element(props);\n }\n // set the icon's class to iconClass plus props.className\n props.className = classes(iconClass, props.className);\n // render icon as css background image, assuming one is set on iconClass\n return Private.blankElement(props);\n }\n return LabIcon.resolve({ icon }).element(props);\n }\n /**\n * Resolve an icon name or a \\{name, svgstr\\} pair into a React component.\n * If icon arg is undefined, the function will fall back to trying to render\n * the icon as a CSS background image, via the iconClass arg.\n * If both icon and iconClass are undefined, the returned component\n * will simply render an empty div.\n *\n * @param icon - optional, either a string with the name of an existing icon\n * or an object with \\{name: string, svgstr: string\\} fields\n *\n * @param iconClass - optional, if the icon arg is not set, the iconClass arg\n * should be a CSS class associated with an existing CSS background-image\n *\n * @param fallback - DEPRECATED, optional, a LabIcon instance that will\n * be used if neither icon nor iconClass are defined\n *\n * @param props - any additional args are passed though to the React component\n * of the resolved icon on render\n *\n * @returns a React component that will render the resolved icon\n */\n static resolveReact({ icon, iconClass, fallback, ...props }) {\n if (!Private.isResolvable(icon)) {\n if (!iconClass && fallback) {\n // if neither icon nor iconClass are defined/resolvable, use fallback\n return React.createElement(fallback.react, { ...props });\n }\n // set the icon's class to iconClass plus props.className\n props.className = classes(iconClass, props.className);\n // render icon as css background image, assuming one is set on iconClass\n return React.createElement(Private.blankReact, { ...props });\n }\n const resolved = LabIcon.resolve({ icon });\n return React.createElement(resolved.react, { ...props });\n }\n /**\n * Resolve a \\{name, svgstr\\} pair into an actual svg node.\n */\n static resolveSvg({ name, svgstr }) {\n const svgDoc = new DOMParser().parseFromString(Private.svgstrShim(svgstr), 'image/svg+xml');\n const svgError = svgDoc.querySelector('parsererror');\n // structure of error element varies by browser, search at top level\n if (svgError) {\n // parse failed, svgElement will be an error box\n const errmsg = `SVG HTML was malformed for LabIcon instance.\\nname: ${name}, svgstr: ${svgstr}`;\n if (LabIcon._debug) {\n // fail noisily, render the error box\n console.error(errmsg);\n return svgError;\n }\n else {\n // bad svg is always a real error, fail silently but warn\n console.warn(errmsg);\n return null;\n }\n }\n else {\n // parse succeeded\n return svgDoc.documentElement;\n }\n }\n /**\n * Toggle icon debug from off-to-on, or vice-versa.\n *\n * @param debug - optional boolean to force debug on or off\n */\n static toggleDebug(debug) {\n LabIcon._debug = debug !== null && debug !== void 0 ? debug : !LabIcon._debug;\n }\n /** *********\n * members *\n ***********/\n constructor({ name, svgstr, render, unrender, _loading = false }) {\n this._props = {};\n this._svgReplaced = new Signal(this);\n /**\n * Cache for svg parsing intermediates\n * - undefined: the cache has not yet been populated\n * - null: a valid, but empty, value\n */\n this._svgElement = undefined;\n this._svgInnerHTML = undefined;\n this._svgReactAttrs = undefined;\n if (!(name && svgstr)) {\n // sanity check failed\n console.error(`When defining a new LabIcon, name and svgstr must both be non-empty strings. name: ${name}, svgstr: ${svgstr}`);\n return badIcon;\n }\n // currently this needs to be set early, before checks for existing icons\n this._loading = _loading;\n // check to see if this is a redefinition of an existing icon\n if (LabIcon._instances.has(name)) {\n // fetch the existing icon, replace its svg, then return it\n const icon = LabIcon._instances.get(name);\n if (this._loading) {\n // replace the placeholder svg in icon\n icon.svgstr = svgstr;\n this._loading = false;\n return icon;\n }\n else {\n // already loaded icon svg exists; replace it and warn\n if (LabIcon._debug) {\n console.warn(`Redefining previously loaded icon svgstr. name: ${name}, svgstrOld: ${icon.svgstr}, svgstr: ${svgstr}`);\n }\n icon.svgstr = svgstr;\n return icon;\n }\n }\n this.name = name;\n this.react = this._initReact(name);\n this.svgstr = svgstr;\n // setup custom render/unrender methods, if passed in\n this._initRender({ render, unrender });\n LabIcon._instances.set(this.name, this);\n }\n /**\n * Get a view of this icon that is bound to the specified icon/style props\n *\n * @param optional icon/style props (same as args for .element\n * and .react methods). These will be bound to the resulting view\n *\n * @returns a view of this LabIcon instance\n */\n bindprops(props) {\n const view = Object.create(this);\n view._props = props;\n view.react = view._initReact(view.name + '_bind');\n return view;\n }\n /**\n * Create an icon as a DOM element\n *\n * @param className - a string that will be used as the class\n * of the container element. Overrides any existing class\n *\n * @param container - a preexisting DOM element that\n * will be used as the container for the svg element\n *\n * @param label - text that will be displayed adjacent\n * to the icon\n *\n * @param title - a tooltip for the icon\n *\n * @param tag - if container is not explicitly\n * provided, this tag will be used when creating the container\n *\n * @param stylesheet - optional string naming a builtin icon\n * stylesheet, for example 'menuItem' or `statusBar`. Can also be an\n * object defining a custom icon stylesheet, or a list of builtin\n * stylesheet names and/or custom stylesheet objects. If array,\n * the given stylesheets will be merged.\n *\n * See @jupyterlab/ui-components/src/style/icon.ts for details\n *\n * @param elementPosition - optional position for the inner svg element\n *\n * @param elementSize - optional size for the inner svg element.\n * Set to 'normal' to get a standard 16px x 16px icon\n *\n * @param ...elementCSS - all additional args are treated as\n * overrides for the CSS props applied to the inner svg element\n *\n * @returns A DOM element that contains an (inline) svg element\n * that displays an icon\n */\n element(props = {}) {\n var _a;\n let { className, container, label, title, tag = 'div', ...styleProps } = { ...this._props, ...props };\n // check if icon element is already set\n const maybeSvgElement = container === null || container === void 0 ? void 0 : container.firstChild;\n if (((_a = maybeSvgElement === null || maybeSvgElement === void 0 ? void 0 : maybeSvgElement.dataset) === null || _a === void 0 ? void 0 : _a.iconId) === this._uuid) {\n // return the existing icon element\n return maybeSvgElement;\n }\n // ensure that svg html is valid\n if (!this.svgElement) {\n // bail if failing silently, return blank element\n return document.createElement('div');\n }\n let returnSvgElement = true;\n if (container) {\n // take ownership by removing any existing children\n while (container.firstChild) {\n container.firstChild.remove();\n }\n }\n else {\n // create a container if needed\n container = document.createElement(tag);\n returnSvgElement = false;\n }\n if (label != null) {\n container.textContent = label;\n }\n Private.initContainer({ container, className, styleProps, title });\n // add the svg node to the container\n const svgElement = this.svgElement.cloneNode(true);\n container.appendChild(svgElement);\n return returnSvgElement ? svgElement : container;\n }\n render(container, options) {\n var _a;\n let label = (_a = options === null || options === void 0 ? void 0 : options.children) === null || _a === void 0 ? void 0 : _a[0];\n // narrow type of label\n if (typeof label !== 'string') {\n label = undefined;\n }\n this.element({\n container,\n label,\n ...options === null || options === void 0 ? void 0 : options.props\n });\n }\n get svgElement() {\n if (this._svgElement === undefined) {\n this._svgElement = this._initSvg({ uuid: this._uuid });\n }\n return this._svgElement;\n }\n get svgInnerHTML() {\n if (this._svgInnerHTML === undefined) {\n if (this.svgElement === null) {\n // the svg element resolved to null, mark this null too\n this._svgInnerHTML = null;\n }\n else {\n this._svgInnerHTML = this.svgElement.innerHTML;\n }\n }\n return this._svgInnerHTML;\n }\n get svgReactAttrs() {\n if (this._svgReactAttrs === undefined) {\n if (this.svgElement === null) {\n // the svg element resolved to null, mark this null too\n this._svgReactAttrs = null;\n }\n else {\n this._svgReactAttrs = getReactAttrs(this.svgElement, {\n ignore: ['data-icon-id']\n });\n }\n }\n return this._svgReactAttrs;\n }\n get svgstr() {\n return this._svgstr;\n }\n set svgstr(svgstr) {\n this._svgstr = svgstr;\n // associate a new unique id with this particular svgstr\n const uuid = UUID.uuid4();\n const uuidOld = this._uuid;\n this._uuid = uuid;\n // empty the svg parsing intermediates cache\n this._svgElement = undefined;\n this._svgInnerHTML = undefined;\n this._svgReactAttrs = undefined;\n // update icon elements created using .element method\n document\n .querySelectorAll(`[data-icon-id=\"${uuidOld}\"]`)\n .forEach(oldSvgElement => {\n if (this.svgElement) {\n oldSvgElement.replaceWith(this.svgElement.cloneNode(true));\n }\n });\n // trigger update of icon elements created using other methods\n this._svgReplaced.emit();\n }\n _initReact(displayName) {\n const component = React.forwardRef((props = {}, ref) => {\n const { className, container, label, title, tag = 'div', ...styleProps } = { ...this._props, ...props };\n // set up component state via useState hook\n const [, setId] = React.useState(this._uuid);\n // subscribe to svg replacement via useEffect hook\n React.useEffect(() => {\n const onSvgReplaced = () => {\n setId(this._uuid);\n };\n this._svgReplaced.connect(onSvgReplaced);\n // specify cleanup callback as hook return\n return () => {\n this._svgReplaced.disconnect(onSvgReplaced);\n };\n });\n // make it so that tag can be used as a jsx component\n const Tag = tag;\n // ensure that svg html is valid\n if (!(this.svgInnerHTML && this.svgReactAttrs)) {\n // bail if failing silently\n return React.createElement(React.Fragment, null);\n }\n const svgComponent = (React.createElement(\"svg\", { ...this.svgReactAttrs, dangerouslySetInnerHTML: { __html: this.svgInnerHTML }, ref: ref }));\n if (container) {\n Private.initContainer({ container, className, styleProps, title });\n return (React.createElement(React.Fragment, null,\n svgComponent,\n label));\n }\n else {\n return (React.createElement(Tag, { className: className || styleProps\n ? classes(className, LabIconStyle.styleClass(styleProps))\n : undefined, title: title },\n svgComponent,\n label));\n }\n });\n component.displayName = `LabIcon_${displayName}`;\n return component;\n }\n _initRender({ render, unrender }) {\n if (render) {\n this.render = render;\n if (unrender) {\n this.unrender = unrender;\n }\n }\n else if (unrender) {\n console.warn('In _initRender, ignoring unrender arg since render is undefined');\n }\n }\n _initSvg({ title, uuid } = {}) {\n const svgElement = LabIcon.resolveSvg(this);\n if (!svgElement) {\n // bail on null svg element\n return svgElement;\n }\n if (svgElement.tagName !== 'parsererror') {\n // svgElement is an actual svg node, augment it\n svgElement.dataset.icon = this.name;\n if (uuid) {\n svgElement.dataset.iconId = uuid;\n }\n if (title) {\n Private.setTitleSvg(svgElement, title);\n }\n }\n return svgElement;\n }\n}\nLabIcon._debug = false;\nLabIcon._instances = new Map();\nexport { LabIcon };\nvar Private;\n(function (Private) {\n function blankElement({ className = '', container, label, title, tag = 'div', ...styleProps }) {\n if ((container === null || container === void 0 ? void 0 : container.className) === className) {\n // nothing needs doing, return the icon node\n return container;\n }\n if (container) {\n // take ownership by removing any existing children\n while (container.firstChild) {\n container.firstChild.remove();\n }\n }\n else {\n // create a container if needed\n container = document.createElement(tag);\n }\n if (label != null) {\n container.textContent = label;\n }\n Private.initContainer({ container, className, styleProps, title });\n return container;\n }\n Private.blankElement = blankElement;\n Private.blankReact = React.forwardRef(({ className = '', container, label, title, tag = 'div', ...styleProps }, ref) => {\n // make it so that tag can be used as a jsx component\n const Tag = tag;\n if (container) {\n initContainer({ container, className, styleProps, title });\n return React.createElement(React.Fragment, null);\n }\n else {\n // if ref is defined, we create a blank svg node and point ref to it\n return (React.createElement(Tag, { className: classes(className, LabIconStyle.styleClass(styleProps)) },\n ref && blankIcon.react({ ref }),\n label));\n }\n });\n Private.blankReact.displayName = 'BlankReact';\n function initContainer({ container, className, styleProps, title }) {\n if (title != null) {\n container.title = title;\n }\n const styleClass = LabIconStyle.styleClass(styleProps);\n if (className != null) {\n // override the container class with explicitly passed-in class + style class\n const classResolved = classes(className, styleClass);\n container.className = classResolved;\n return classResolved;\n }\n else if (styleClass) {\n // add the style class to the container class\n container.classList.add(styleClass);\n return styleClass;\n }\n else {\n return '';\n }\n }\n Private.initContainer = initContainer;\n function isResolvable(icon) {\n return !!(icon &&\n (typeof icon === 'string' ||\n (icon.name && icon.svgstr)));\n }\n Private.isResolvable = isResolvable;\n function setTitleSvg(svgNode, title) {\n // add a title node to the top level svg node\n const titleNodes = svgNode.getElementsByTagName('title');\n if (titleNodes.length) {\n titleNodes[0].textContent = title;\n }\n else {\n const titleNode = document.createElement('title');\n titleNode.textContent = title;\n svgNode.appendChild(titleNode);\n }\n }\n Private.setTitleSvg = setTitleSvg;\n /**\n * A shim for svgstrs loaded using any loader other than raw-loader.\n * This function assumes that svgstr will look like one of:\n *\n * - the raw contents of an .svg file:\n * \n *\n * - a data URL:\n * data:[][;base64],\n *\n * See https://developer.mozilla.org/en-US/docs/Web/HTTP/Basics_of_HTTP/Data_URIs\n */\n function svgstrShim(svgstr, strict = true) {\n // decode any uri escaping, condense leading/lagging whitespace,\n // then match to raw svg string\n const [, base64, raw] = decodeURIComponent(svgstr)\n .replace(/>\\s*\\n\\s*<')\n .replace(/\\s*\\n\\s*/g, ' ')\n .match(strict\n ? // match based on data url schema\n /^(?:data:.*?(;base64)?,)?(.*)/\n : // match based on open of svg tag\n /(?:(base64).*)?( c && typeof c === 'object'\n ? Object.keys(c).map(key => !!c[key] && key)\n : typeof c === 'string'\n ? c.split(/\\s+/)\n : [])\n .reduce((flattened, c) => flattened.concat(c), [])\n .filter(c => !!c);\n}\n/**\n * Combines classNames.\n *\n * @param classes - A list of classNames\n *\n * @returns A single string with the combined className\n */\nexport function classes(...classes) {\n return _classes(classes).join(' ');\n}\n/**\n * Combines classNames. Removes all duplicates\n *\n * @param classes - A list of classNames\n *\n * @returns A single string with the combined className\n */\nexport function classesDedupe(...classes) {\n return [...new Set(_classes(classes))].join(' ');\n}\n/**\n * Translates the attributes of a DOM element into attributes that can\n * be understood by React. Currently not comprehensive, we will add special\n * cases as they become relevant.\n *\n * @param elem - A DOM element\n *\n * @param ignore - An optional list of attribute names to ignore\n *\n * @returns An object with key:value pairs that are the React-friendly\n * translation of elem's attributes\n */\nexport function getReactAttrs(elem, { ignore = [] } = {}) {\n return elem\n .getAttributeNames()\n .reduce((d, name) => {\n if (name === 'style' || ignore.includes(name)) {\n void 0;\n }\n else if (name.startsWith('data')) {\n d[name] = elem.getAttribute(name);\n }\n else {\n d[Text.camelCase(name)] = elem.getAttribute(name);\n }\n return d;\n }, {});\n}\n//# sourceMappingURL=utils.js.map","export default \"data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSIxNiIgdmlld0JveD0iMCAwIDE4IDE4Ij4KICAgIDxnIGNsYXNzPSJqcC1pY29uMyIgZmlsbD0iIzYxNjE2MSI+CiAgICAgICAgPHBhdGggZD0iTTkgMTMuNWMtMi40OSAwLTQuNS0yLjAxLTQuNS00LjVTNi41MSA0LjUgOSA0LjVjMS4yNCAwIDIuMzYuNTIgMy4xNyAxLjMzTDEwIDhoNVYzbC0xLjc2IDEuNzZDMTIuMTUgMy42OCAxMC42NiAzIDkgMyA1LjY5IDMgMy4wMSA1LjY5IDMuMDEgOVM1LjY5IDE1IDkgMTVjMi45NyAwIDUuNDMtMi4xNiA1LjktNWgtMS41MmMtLjQ2IDItMi4yNCAzLjUtNC4zOCAzLjV6Ii8+CiAgICA8L2c+Cjwvc3ZnPgo=\"","export default \"data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSIyNCIgaGVpZ2h0PSIyNCIgdmlld0JveD0iMCAwIDI0IDI0Ij4KICAgIDxwYXRoCiAgICAgICAgY2xhc3M9ImpwLWljb24wIgogICAgICAgIGZpbGw9IiMwMDAiCiAgICAgICAgZD0iTTI0IDIwLjE4OGwtOC4zMTUtOC4yMDkgOC4yLTguMjgyLTMuNjk3LTMuNjk3LTguMjEyIDguMzE4LTguMzEtOC4yMDMtMy42NjYgMy42NjYgOC4zMjEgOC4yNC04LjIwNiA4LjMxMyAzLjY2NiAzLjY2NiA4LjIzNy04LjMxOCA4LjI4NSA4LjIwM3oiCiAgICAvPgo8L3N2Zz4K\"","export default \"data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSIyNCIgaGVpZ2h0PSIyNCIgdmlld0JveD0iMCAwIDI0IDI0Ij4KICAgIDxwYXRoCiAgICAgICAgZmlsbD0iIzAwMCIKICAgICAgICBmaWxsLW9wYWNpdHk9IjAuMCIKICAgICAgICBkPSJNMjQgMjAuMTg4bC04LjMxNS04LjIwOSA4LjItOC4yODItMy42OTctMy42OTctOC4yMTIgOC4zMTgtOC4zMS04LjIwMy0zLjY2NiAzLjY2NiA4LjMyMSA4LjI0LTguMjA2IDguMzEzIDMuNjY2IDMuNjY2IDguMjM3LTguMzE4IDguMjg1IDguMjAzeiIKICAgIC8+Cjwvc3ZnPgo=\"","/*\n * Copyright (c) Jupyter Development Team.\n * Distributed under the terms of the Modified BSD License.\n */\nimport React from 'react';\nimport { LabIcon } from '../icon';\nimport { classes } from '../utils';\n/**\n * InputGroup component\n *\n * @param props Component properties\n * @returns Component\n */\nexport function InputGroup(props) {\n const { className, inputRef, rightIcon, ...others } = props;\n return (React.createElement(\"div\", { className: classes('jp-InputGroup', className) },\n React.createElement(\"input\", { ref: inputRef, ...others }),\n rightIcon && (React.createElement(\"span\", { className: \"jp-InputGroupAction\" }, typeof rightIcon === 'string' ? (React.createElement(LabIcon.resolveReact, { icon: rightIcon, elementPosition: \"center\", tag: \"span\" })) : (React.createElement(rightIcon.react, { elementPosition: \"center\", tag: \"span\" }))))));\n}\n//# sourceMappingURL=inputgroup.js.map","export default function _extends() {\n _extends = Object.assign ? Object.assign.bind() : function (target) {\n for (var i = 1; i < arguments.length; i++) {\n var source = arguments[i];\n for (var key in source) {\n if (Object.prototype.hasOwnProperty.call(source, key)) {\n target[key] = source[key];\n }\n }\n }\n return target;\n };\n return _extends.apply(this, arguments);\n}","import _extends from \"@babel/runtime/helpers/extends\";\nimport React from 'react';\nexport default function JSONArrow(_ref) {\n let {\n styling,\n arrowStyle = 'single',\n expanded,\n nodeType,\n onClick\n } = _ref;\n return /*#__PURE__*/React.createElement(\"div\", _extends({}, styling('arrowContainer', arrowStyle), {\n onClick: onClick\n }), /*#__PURE__*/React.createElement(\"div\", styling(['arrow', 'arrowSign'], nodeType, expanded, arrowStyle), '\\u25B6', arrowStyle === 'double' && /*#__PURE__*/React.createElement(\"div\", styling(['arrowSign', 'arrowSignInner']), '\\u25B6')));\n}","function getLength(type, collection) {\n if (type === 'Object') {\n // eslint-disable-next-line @typescript-eslint/ban-types\n return Object.keys(collection).length;\n } else if (type === 'Array') {\n return collection.length;\n }\n return Infinity;\n}\nfunction isIterableMap(collection) {\n return typeof collection.set === 'function';\n}\nfunction getEntries(type, collection, sortObjectKeys) {\n let from = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : 0;\n let to = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : Infinity;\n let res;\n if (type === 'Object') {\n let keys = Object.getOwnPropertyNames(collection);\n if (sortObjectKeys) {\n keys.sort(sortObjectKeys === true ? undefined : sortObjectKeys);\n }\n keys = keys.slice(from, to + 1);\n res = {\n entries: keys.map(key => ({\n key,\n value: collection[key]\n }))\n };\n } else if (type === 'Array') {\n res = {\n entries: collection.slice(from, to + 1).map((val, idx) => ({\n key: idx + from,\n value: val\n }))\n };\n } else {\n let idx = 0;\n const entries = [];\n let done = true;\n const isMap = isIterableMap(collection);\n for (const item of collection) {\n if (idx > to) {\n done = false;\n break;\n }\n if (from <= idx) {\n if (isMap && Array.isArray(item)) {\n if (typeof item[0] === 'string' || typeof item[0] === 'number') {\n entries.push({\n key: item[0],\n value: item[1]\n });\n } else {\n entries.push({\n key: `[entry ${idx}]`,\n value: {\n '[key]': item[0],\n '[value]': item[1]\n }\n });\n }\n } else {\n entries.push({\n key: idx,\n value: item\n });\n }\n }\n idx++;\n }\n res = {\n hasMore: !done,\n entries\n };\n }\n return res;\n}\nfunction getRanges(from, to, limit) {\n const ranges = [];\n while (to - from > limit * limit) {\n limit = limit * limit;\n }\n for (let i = from; i <= to; i += limit) {\n ranges.push({\n from: i,\n to: Math.min(to, i + limit - 1)\n });\n }\n return ranges;\n}\nexport default function getCollectionEntries(type, collection, sortObjectKeys, limit) {\n let from = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : 0;\n let to = arguments.length > 5 && arguments[5] !== undefined ? arguments[5] : Infinity;\n const getEntriesBound = getEntries.bind(null, type, collection, sortObjectKeys);\n if (!limit) {\n return getEntriesBound().entries;\n }\n const isSubset = to < Infinity;\n const length = Math.min(to - from, getLength(type, collection));\n if (type !== 'Iterable') {\n if (length <= limit || limit < 7) {\n return getEntriesBound(from, to).entries;\n }\n } else {\n if (length <= limit && !isSubset) {\n return getEntriesBound(from, to).entries;\n }\n }\n let limitedEntries;\n if (type === 'Iterable') {\n const {\n hasMore,\n entries\n } = getEntriesBound(from, from + limit - 1);\n limitedEntries = hasMore ? [...entries, ...getRanges(from + limit, from + 2 * limit - 1, limit)] : entries;\n } else {\n limitedEntries = isSubset ? getRanges(from, to, limit) : [...getEntriesBound(0, limit - 5).entries, ...getRanges(limit - 4, length - 5, limit), ...getEntriesBound(length - 4, length - 1).entries];\n }\n return limitedEntries;\n}","import _extends from \"@babel/runtime/helpers/extends\";\nimport React, { useCallback, useState } from 'react';\nimport JSONArrow from './JSONArrow';\nexport default function ItemRange(props) {\n const {\n styling,\n from,\n to,\n renderChildNodes,\n nodeType\n } = props;\n const [expanded, setExpanded] = useState(false);\n const handleClick = useCallback(() => {\n setExpanded(!expanded);\n }, [expanded]);\n return expanded ? /*#__PURE__*/React.createElement(\"div\", styling('itemRange', expanded), renderChildNodes(props, from, to)) : /*#__PURE__*/React.createElement(\"div\", _extends({}, styling('itemRange', expanded), {\n onClick: handleClick\n }), /*#__PURE__*/React.createElement(JSONArrow, {\n nodeType: nodeType,\n styling: styling,\n expanded: false,\n onClick: handleClick,\n arrowStyle: \"double\"\n }), `${from} ... ${to}`);\n}","import _extends from \"@babel/runtime/helpers/extends\";\nimport React, { useCallback, useState } from 'react';\nimport JSONArrow from './JSONArrow';\nimport getCollectionEntries from './getCollectionEntries';\nimport JSONNode from './JSONNode';\nimport ItemRange from './ItemRange';\nfunction isRange(rangeOrEntry) {\n return rangeOrEntry.to !== undefined;\n}\nfunction renderChildNodes(props, from, to) {\n const {\n nodeType,\n data,\n collectionLimit,\n circularCache,\n keyPath,\n postprocessValue,\n sortObjectKeys\n } = props;\n const childNodes = [];\n getCollectionEntries(nodeType, data, sortObjectKeys, collectionLimit, from, to).forEach(entry => {\n if (isRange(entry)) {\n childNodes.push( /*#__PURE__*/React.createElement(ItemRange, _extends({}, props, {\n key: `ItemRange--${entry.from}-${entry.to}`,\n from: entry.from,\n to: entry.to,\n renderChildNodes: renderChildNodes\n })));\n } else {\n const {\n key,\n value\n } = entry;\n const isCircular = circularCache.indexOf(value) !== -1;\n childNodes.push( /*#__PURE__*/React.createElement(JSONNode, _extends({}, props, {\n postprocessValue,\n collectionLimit,\n key: `Node--${key}`,\n keyPath: [key, ...keyPath],\n value: postprocessValue(value),\n circularCache: [...circularCache, value],\n isCircular: isCircular,\n hideRoot: false\n })));\n }\n });\n return childNodes;\n}\nexport default function JSONNestedNode(props) {\n const {\n circularCache = [],\n collectionLimit,\n createItemString,\n data,\n expandable,\n getItemString,\n hideRoot,\n isCircular,\n keyPath,\n labelRenderer,\n level = 0,\n nodeType,\n nodeTypeIndicator,\n shouldExpandNodeInitially,\n styling\n } = props;\n const [expanded, setExpanded] = useState(\n // calculate individual node expansion if necessary\n isCircular ? false : shouldExpandNodeInitially(keyPath, data, level));\n const handleClick = useCallback(() => {\n if (expandable) setExpanded(!expanded);\n }, [expandable, expanded]);\n const renderedChildren = expanded || hideRoot && level === 0 ? renderChildNodes({\n ...props,\n circularCache,\n level: level + 1\n }) : null;\n const itemType = /*#__PURE__*/React.createElement(\"span\", styling('nestedNodeItemType', expanded), nodeTypeIndicator);\n const renderedItemString = getItemString(nodeType, data, itemType, createItemString(data, collectionLimit), keyPath);\n const stylingArgs = [keyPath, nodeType, expanded, expandable];\n return hideRoot ? /*#__PURE__*/React.createElement(\"li\", styling('rootNode', ...stylingArgs), /*#__PURE__*/React.createElement(\"ul\", styling('rootNodeChildren', ...stylingArgs), renderedChildren)) : /*#__PURE__*/React.createElement(\"li\", styling('nestedNode', ...stylingArgs), expandable && /*#__PURE__*/React.createElement(JSONArrow, {\n styling: styling,\n nodeType: nodeType,\n expanded: expanded,\n onClick: handleClick\n }), /*#__PURE__*/React.createElement(\"label\", _extends({}, styling(['label', 'nestedNodeLabel'], ...stylingArgs), {\n onClick: handleClick\n }), labelRenderer(...stylingArgs)), /*#__PURE__*/React.createElement(\"span\", _extends({}, styling('nestedNodeItemString', ...stylingArgs), {\n onClick: handleClick\n }), renderedItemString), /*#__PURE__*/React.createElement(\"ul\", styling('nestedNodeChildren', ...stylingArgs), renderedChildren));\n}","import _extends from \"@babel/runtime/helpers/extends\";\nimport React from 'react';\nimport JSONNestedNode from './JSONNestedNode';\n// Returns the \"n Items\" string for this node,\n// generating and caching it if it hasn't been created yet.\nfunction createItemString(data) {\n const len = Object.getOwnPropertyNames(data).length;\n return `${len} ${len !== 1 ? 'keys' : 'key'}`;\n}\n// Configures to render an Object\nexport default function JSONObjectNode(_ref) {\n let {\n data,\n ...props\n } = _ref;\n return /*#__PURE__*/React.createElement(JSONNestedNode, _extends({}, props, {\n data: data,\n nodeType: \"Object\",\n nodeTypeIndicator: props.nodeType === 'Error' ? 'Error()' : '{}',\n createItemString: createItemString,\n expandable: Object.getOwnPropertyNames(data).length > 0\n }));\n}","import _extends from \"@babel/runtime/helpers/extends\";\nimport React from 'react';\nimport JSONNestedNode from './JSONNestedNode';\n// Returns the \"n Items\" string for this node,\n// generating and caching it if it hasn't been created yet.\nfunction createItemString(data) {\n return `${data.length} ${data.length !== 1 ? 'items' : 'item'}`;\n}\n// Configures to render an Array\nexport default function JSONArrayNode(_ref) {\n let {\n data,\n ...props\n } = _ref;\n return /*#__PURE__*/React.createElement(JSONNestedNode, _extends({}, props, {\n data: data,\n nodeType: \"Array\",\n nodeTypeIndicator: \"[]\",\n createItemString: createItemString,\n expandable: data.length > 0\n }));\n}","import _extends from \"@babel/runtime/helpers/extends\";\nimport React from 'react';\nimport JSONNestedNode from './JSONNestedNode';\n// Returns the \"n Items\" string for this node,\n// generating and caching it if it hasn't been created yet.\nfunction createItemString(data, limit) {\n let count = 0;\n let hasMore = false;\n if (Number.isSafeInteger(data.size)) {\n count = data.size;\n } else {\n // eslint-disable-next-line no-unused-vars\n for (const entry of data) {\n if (limit && count + 1 > limit) {\n hasMore = true;\n break;\n }\n count += 1;\n }\n }\n return `${hasMore ? '>' : ''}${count} ${count !== 1 ? 'entries' : 'entry'}`;\n}\n// Configures to render an iterable\nexport default function JSONIterableNode(props) {\n return /*#__PURE__*/React.createElement(JSONNestedNode, _extends({}, props, {\n nodeType: \"Iterable\",\n nodeTypeIndicator: \"()\",\n createItemString: createItemString,\n expandable: true\n }));\n}","import React from 'react';\nexport default function JSONValueNode(_ref) {\n let {\n nodeType,\n styling,\n labelRenderer,\n keyPath,\n valueRenderer,\n value,\n valueGetter = value => value\n } = _ref;\n return /*#__PURE__*/React.createElement(\"li\", styling('value', nodeType, keyPath), /*#__PURE__*/React.createElement(\"label\", styling(['label', 'valueLabel'], nodeType, keyPath), labelRenderer(keyPath, nodeType, false, false)), /*#__PURE__*/React.createElement(\"span\", styling('valueText', nodeType, keyPath), valueRenderer(valueGetter(value), value, ...keyPath)));\n}","import _extends from \"@babel/runtime/helpers/extends\";\nimport React from 'react';\nimport objType from './objType';\nimport JSONObjectNode from './JSONObjectNode';\nimport JSONArrayNode from './JSONArrayNode';\nimport JSONIterableNode from './JSONIterableNode';\nimport JSONValueNode from './JSONValueNode';\nexport default function JSONNode(_ref) {\n let {\n getItemString,\n keyPath,\n labelRenderer,\n styling,\n value,\n valueRenderer,\n isCustomNode,\n ...rest\n } = _ref;\n const nodeType = isCustomNode(value) ? 'Custom' : objType(value);\n const simpleNodeProps = {\n getItemString,\n key: keyPath[0],\n keyPath,\n labelRenderer,\n nodeType,\n styling,\n value,\n valueRenderer\n };\n const nestedNodeProps = {\n ...rest,\n ...simpleNodeProps,\n data: value,\n isCustomNode\n };\n switch (nodeType) {\n case 'Object':\n case 'Error':\n case 'WeakMap':\n case 'WeakSet':\n return /*#__PURE__*/React.createElement(JSONObjectNode, nestedNodeProps);\n case 'Array':\n return /*#__PURE__*/React.createElement(JSONArrayNode, nestedNodeProps);\n case 'Iterable':\n case 'Map':\n case 'Set':\n return /*#__PURE__*/React.createElement(JSONIterableNode, nestedNodeProps);\n case 'String':\n return /*#__PURE__*/React.createElement(JSONValueNode, _extends({}, simpleNodeProps, {\n valueGetter: raw => `\"${raw}\"`\n }));\n case 'Number':\n return /*#__PURE__*/React.createElement(JSONValueNode, simpleNodeProps);\n case 'Boolean':\n return /*#__PURE__*/React.createElement(JSONValueNode, _extends({}, simpleNodeProps, {\n valueGetter: raw => raw ? 'true' : 'false'\n }));\n case 'Date':\n return /*#__PURE__*/React.createElement(JSONValueNode, _extends({}, simpleNodeProps, {\n valueGetter: raw => raw.toISOString()\n }));\n case 'Null':\n return /*#__PURE__*/React.createElement(JSONValueNode, _extends({}, simpleNodeProps, {\n valueGetter: () => 'null'\n }));\n case 'Undefined':\n return /*#__PURE__*/React.createElement(JSONValueNode, _extends({}, simpleNodeProps, {\n valueGetter: () => 'undefined'\n }));\n case 'Function':\n case 'Symbol':\n return /*#__PURE__*/React.createElement(JSONValueNode, _extends({}, simpleNodeProps, {\n valueGetter: raw => raw.toString()\n }));\n case 'Custom':\n return /*#__PURE__*/React.createElement(JSONValueNode, simpleNodeProps);\n default:\n return /*#__PURE__*/React.createElement(JSONValueNode, _extends({}, simpleNodeProps, {\n valueGetter: () => `<${nodeType}>`\n }));\n }\n}","export default function objType(obj) {\n const type = Object.prototype.toString.call(obj).slice(8, -1);\n if (type === 'Object' && typeof obj[Symbol.iterator] === 'function') {\n return 'Iterable';\n }\n if (type === 'Custom' && obj.constructor !== Object && obj instanceof Object) {\n // For projects implementing objects overriding `.prototype[Symbol.toStringTag]`\n return 'Object';\n }\n return type;\n}","export default function _typeof(obj) {\n \"@babel/helpers - typeof\";\n\n return _typeof = \"function\" == typeof Symbol && \"symbol\" == typeof Symbol.iterator ? function (obj) {\n return typeof obj;\n } : function (obj) {\n return obj && \"function\" == typeof Symbol && obj.constructor === Symbol && obj !== Symbol.prototype ? \"symbol\" : typeof obj;\n }, _typeof(obj);\n}","import toPropertyKey from \"./toPropertyKey.js\";\nexport default function _defineProperty(obj, key, value) {\n key = toPropertyKey(key);\n if (key in obj) {\n Object.defineProperty(obj, key, {\n value: value,\n enumerable: true,\n configurable: true,\n writable: true\n });\n } else {\n obj[key] = value;\n }\n return obj;\n}","import _typeof from \"./typeof.js\";\nimport toPrimitive from \"./toPrimitive.js\";\nexport default function _toPropertyKey(arg) {\n var key = toPrimitive(arg, \"string\");\n return _typeof(key) === \"symbol\" ? key : String(key);\n}","import _typeof from \"./typeof.js\";\nexport default function _toPrimitive(input, hint) {\n if (_typeof(input) !== \"object\" || input === null) return input;\n var prim = input[Symbol.toPrimitive];\n if (prim !== undefined) {\n var res = prim.call(input, hint || \"default\");\n if (_typeof(res) !== \"object\") return res;\n throw new TypeError(\"@@toPrimitive must return a primitive value.\");\n }\n return (hint === \"string\" ? String : Number)(input);\n}","export default function _arrayLikeToArray(arr, len) {\n if (len == null || len > arr.length) len = arr.length;\n for (var i = 0, arr2 = new Array(len); i < len; i++) arr2[i] = arr[i];\n return arr2;\n}","import arrayWithHoles from \"./arrayWithHoles.js\";\nimport iterableToArrayLimit from \"./iterableToArrayLimit.js\";\nimport unsupportedIterableToArray from \"./unsupportedIterableToArray.js\";\nimport nonIterableRest from \"./nonIterableRest.js\";\nexport default function _slicedToArray(arr, i) {\n return arrayWithHoles(arr) || iterableToArrayLimit(arr, i) || unsupportedIterableToArray(arr, i) || nonIterableRest();\n}","export default function _arrayWithHoles(arr) {\n if (Array.isArray(arr)) return arr;\n}","export default function _iterableToArrayLimit(arr, i) {\n var _i = null == arr ? null : \"undefined\" != typeof Symbol && arr[Symbol.iterator] || arr[\"@@iterator\"];\n if (null != _i) {\n var _s,\n _e,\n _x,\n _r,\n _arr = [],\n _n = !0,\n _d = !1;\n try {\n if (_x = (_i = _i.call(arr)).next, 0 === i) {\n if (Object(_i) !== _i) return;\n _n = !1;\n } else for (; !(_n = (_s = _x.call(_i)).done) && (_arr.push(_s.value), _arr.length !== i); _n = !0);\n } catch (err) {\n _d = !0, _e = err;\n } finally {\n try {\n if (!_n && null != _i[\"return\"] && (_r = _i[\"return\"](), Object(_r) !== _r)) return;\n } finally {\n if (_d) throw _e;\n }\n }\n return _arr;\n }\n}","import arrayLikeToArray from \"./arrayLikeToArray.js\";\nexport default function _unsupportedIterableToArray(o, minLen) {\n if (!o) return;\n if (typeof o === \"string\") return arrayLikeToArray(o, minLen);\n var n = Object.prototype.toString.call(o).slice(8, -1);\n if (n === \"Object\" && o.constructor) n = o.constructor.name;\n if (n === \"Map\" || n === \"Set\") return Array.from(o);\n if (n === \"Arguments\" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return arrayLikeToArray(o, minLen);\n}","export default function _nonIterableRest() {\n throw new TypeError(\"Invalid attempt to destructure non-iterable instance.\\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.\");\n}","import _typeof from \"@babel/runtime/helpers/typeof\";\nimport _defineProperty from \"@babel/runtime/helpers/defineProperty\";\nimport _slicedToArray from \"@babel/runtime/helpers/slicedToArray\";\n\nfunction ownKeys(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); enumerableOnly && (symbols = symbols.filter(function (sym) { return Object.getOwnPropertyDescriptor(object, sym).enumerable; })), keys.push.apply(keys, symbols); } return keys; }\n\nfunction _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = null != arguments[i] ? arguments[i] : {}; i % 2 ? ownKeys(Object(source), !0).forEach(function (key) { _defineProperty(target, key, source[key]); }) : Object.getOwnPropertyDescriptors ? Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)) : ownKeys(Object(source)).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } return target; }\n\nimport * as base16 from 'base16';\nimport Color from 'color';\nimport curry from 'lodash.curry';\nimport { yuv2rgb, rgb2yuv } from './colorConverters';\nvar DEFAULT_BASE16 = base16.default;\nvar BASE16_KEYS = Object.keys(DEFAULT_BASE16); // we need a correcting factor, so that a dark, but not black background color\n// converts to bright enough inversed color\n\nvar flip = function flip(x) {\n return x < 0.25 ? 1 : x < 0.5 ? 0.9 - x : 1.1 - x;\n};\n\nvar invertColor = function invertColor(hexString) {\n var color = Color(hexString);\n\n var _rgb2yuv = rgb2yuv(color.array()),\n _rgb2yuv2 = _slicedToArray(_rgb2yuv, 3),\n y = _rgb2yuv2[0],\n u = _rgb2yuv2[1],\n v = _rgb2yuv2[2];\n\n var flippedYuv = [flip(y), u, v];\n var rgb = yuv2rgb(flippedYuv);\n return Color.rgb(rgb).hex();\n};\n\nvar merger = function merger(styling) {\n return function (prevStyling) {\n return {\n className: [prevStyling.className, styling.className].filter(Boolean).join(' '),\n style: _objectSpread(_objectSpread({}, prevStyling.style || {}), styling.style || {})\n };\n };\n};\n\nvar mergeStyling = function mergeStyling(customStyling, defaultStyling) {\n if (customStyling === undefined) {\n return defaultStyling;\n }\n\n if (defaultStyling === undefined) {\n return customStyling;\n }\n\n var customType = _typeof(customStyling);\n\n var defaultType = _typeof(defaultStyling);\n\n switch (customType) {\n case 'string':\n switch (defaultType) {\n case 'string':\n return [defaultStyling, customStyling].filter(Boolean).join(' ');\n\n case 'object':\n return merger({\n className: customStyling,\n style: defaultStyling\n });\n\n case 'function':\n return function (styling) {\n for (var _len = arguments.length, args = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {\n args[_key - 1] = arguments[_key];\n }\n\n return merger({\n className: customStyling\n })(defaultStyling.apply(void 0, [styling].concat(args)));\n };\n }\n\n break;\n\n case 'object':\n switch (defaultType) {\n case 'string':\n return merger({\n className: defaultStyling,\n style: customStyling\n });\n\n case 'object':\n return _objectSpread(_objectSpread({}, defaultStyling), customStyling);\n\n case 'function':\n return function (styling) {\n for (var _len2 = arguments.length, args = new Array(_len2 > 1 ? _len2 - 1 : 0), _key2 = 1; _key2 < _len2; _key2++) {\n args[_key2 - 1] = arguments[_key2];\n }\n\n return merger({\n style: customStyling\n })(defaultStyling.apply(void 0, [styling].concat(args)));\n };\n }\n\n break;\n\n case 'function':\n switch (defaultType) {\n case 'string':\n return function (styling) {\n for (var _len3 = arguments.length, args = new Array(_len3 > 1 ? _len3 - 1 : 0), _key3 = 1; _key3 < _len3; _key3++) {\n args[_key3 - 1] = arguments[_key3];\n }\n\n return customStyling.apply(void 0, [merger(styling)({\n className: defaultStyling\n })].concat(args));\n };\n\n case 'object':\n return function (styling) {\n for (var _len4 = arguments.length, args = new Array(_len4 > 1 ? _len4 - 1 : 0), _key4 = 1; _key4 < _len4; _key4++) {\n args[_key4 - 1] = arguments[_key4];\n }\n\n return customStyling.apply(void 0, [merger(styling)({\n style: defaultStyling\n })].concat(args));\n };\n\n case 'function':\n return function (styling) {\n for (var _len5 = arguments.length, args = new Array(_len5 > 1 ? _len5 - 1 : 0), _key5 = 1; _key5 < _len5; _key5++) {\n args[_key5 - 1] = arguments[_key5];\n }\n\n return customStyling.apply(void 0, [defaultStyling.apply(void 0, [styling].concat(args))].concat(args));\n };\n }\n\n }\n};\n\nvar mergeStylings = function mergeStylings(customStylings, defaultStylings) {\n var keys = Object.keys(defaultStylings);\n\n for (var key in customStylings) {\n if (keys.indexOf(key) === -1) keys.push(key);\n }\n\n return keys.reduce(function (mergedStyling, key) {\n return mergedStyling[key] = mergeStyling(customStylings[key], defaultStylings[key]), mergedStyling;\n }, {});\n};\n\nvar getStylingByKeys = function getStylingByKeys(mergedStyling, keys) {\n for (var _len6 = arguments.length, args = new Array(_len6 > 2 ? _len6 - 2 : 0), _key6 = 2; _key6 < _len6; _key6++) {\n args[_key6 - 2] = arguments[_key6];\n }\n\n if (keys === null) {\n return mergedStyling;\n }\n\n if (!Array.isArray(keys)) {\n keys = [keys];\n }\n\n var styles = keys.map(function (key) {\n return mergedStyling[key];\n }).filter(Boolean);\n var props = styles.reduce(function (obj, s) {\n if (typeof s === 'string') {\n obj.className = [obj.className, s].filter(Boolean).join(' ');\n } else if (_typeof(s) === 'object') {\n obj.style = _objectSpread(_objectSpread({}, obj.style), s);\n } else if (typeof s === 'function') {\n obj = _objectSpread(_objectSpread({}, obj), s.apply(void 0, [obj].concat(args)));\n }\n\n return obj;\n }, {\n className: '',\n style: {}\n });\n\n if (!props.className) {\n delete props.className;\n }\n\n if (Object.keys(props.style).length === 0) {\n delete props.style;\n }\n\n return props;\n};\n\nexport var invertBase16Theme = function invertBase16Theme(base16Theme) {\n return Object.keys(base16Theme).reduce(function (t, key) {\n return t[key] = /^base/.test(key) ? invertColor(base16Theme[key]) : key === 'scheme' ? base16Theme[key] + ':inverted' : base16Theme[key], t;\n }, {});\n};\nexport var createStyling = curry(function (getStylingFromBase16) {\n var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};\n var themeOrStyling = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};\n var _options$defaultBase = options.defaultBase16,\n defaultBase16 = _options$defaultBase === void 0 ? DEFAULT_BASE16 : _options$defaultBase,\n _options$base16Themes = options.base16Themes,\n base16Themes = _options$base16Themes === void 0 ? null : _options$base16Themes;\n var base16Theme = getBase16Theme(themeOrStyling, base16Themes);\n\n if (base16Theme) {\n themeOrStyling = _objectSpread(_objectSpread({}, base16Theme), themeOrStyling);\n }\n\n var theme = BASE16_KEYS.reduce(function (t, key) {\n return t[key] = themeOrStyling[key] || defaultBase16[key], t;\n }, {});\n var customStyling = Object.keys(themeOrStyling).reduce(function (s, key) {\n return BASE16_KEYS.indexOf(key) === -1 ? (s[key] = themeOrStyling[key], s) : s;\n }, {});\n var defaultStyling = getStylingFromBase16(theme);\n var mergedStyling = mergeStylings(customStyling, defaultStyling);\n\n for (var _len7 = arguments.length, args = new Array(_len7 > 3 ? _len7 - 3 : 0), _key7 = 3; _key7 < _len7; _key7++) {\n args[_key7 - 3] = arguments[_key7];\n }\n\n return curry(getStylingByKeys, 2).apply(void 0, [mergedStyling].concat(args));\n}, 3);\n\nvar isStylingConfig = function isStylingConfig(theme) {\n return !!theme.extend;\n};\n\nexport var getBase16Theme = function getBase16Theme(theme, base16Themes) {\n if (theme && isStylingConfig(theme) && theme.extend) {\n theme = theme.extend;\n }\n\n if (typeof theme === 'string') {\n var _theme$split = theme.split(':'),\n _theme$split2 = _slicedToArray(_theme$split, 2),\n _themeName = _theme$split2[0],\n modifier = _theme$split2[1];\n\n if (base16Themes) {\n theme = base16Themes[_themeName];\n } else {\n theme = base16[_themeName];\n }\n\n if (modifier === 'inverted') {\n theme = invertBase16Theme(theme);\n }\n }\n\n return theme && Object.prototype.hasOwnProperty.call(theme, 'base00') ? theme : undefined;\n};\nexport var invertTheme = function invertTheme(theme) {\n if (typeof theme === 'string') {\n return \"\".concat(theme, \":inverted\");\n }\n\n if (theme && isStylingConfig(theme) && theme.extend) {\n if (typeof theme.extend === 'string') {\n return _objectSpread(_objectSpread({}, theme), {}, {\n extend: \"\".concat(theme.extend, \":inverted\")\n });\n }\n\n return _objectSpread(_objectSpread({}, theme), {}, {\n extend: invertBase16Theme(theme.extend)\n });\n }\n\n if (theme) {\n return invertBase16Theme(theme);\n }\n\n return theme;\n};\nexport * from './types';","export function yuv2rgb(yuv) {\n var y = yuv[0],\n u = yuv[1],\n v = yuv[2];\n var r, g, b;\n r = y * 1 + u * 0 + v * 1.13983;\n g = y * 1 + u * -0.39465 + v * -0.5806;\n b = y * 1 + u * 2.02311 + v * 0;\n r = Math.min(Math.max(0, r), 1);\n g = Math.min(Math.max(0, g), 1);\n b = Math.min(Math.max(0, b), 1);\n return [r * 255, g * 255, b * 255];\n}\nexport function rgb2yuv(rgb) {\n var r = rgb[0] / 255,\n g = rgb[1] / 255,\n b = rgb[2] / 255;\n var y = r * 0.299 + g * 0.587 + b * 0.114;\n var u = r * -0.14713 + g * -0.28886 + b * 0.436;\n var v = r * 0.615 + g * -0.51499 + b * -0.10001;\n return [y, u, v];\n}","export default {\n scheme: 'solarized',\n author: 'ethan schoonover (http://ethanschoonover.com/solarized)',\n base00: '#002b36',\n base01: '#073642',\n base02: '#586e75',\n base03: '#657b83',\n base04: '#839496',\n base05: '#93a1a1',\n base06: '#eee8d5',\n base07: '#fdf6e3',\n base08: '#dc322f',\n base09: '#cb4b16',\n base0A: '#b58900',\n base0B: '#859900',\n base0C: '#2aa198',\n base0D: '#268bd2',\n base0E: '#6c71c4',\n base0F: '#d33682'\n};","import { createStyling } from 'react-base16-styling';\nimport solarized from './themes/solarized';\nconst colorMap = theme => ({\n BACKGROUND_COLOR: theme.base00,\n TEXT_COLOR: theme.base07,\n STRING_COLOR: theme.base0B,\n DATE_COLOR: theme.base0B,\n NUMBER_COLOR: theme.base09,\n BOOLEAN_COLOR: theme.base09,\n NULL_COLOR: theme.base08,\n UNDEFINED_COLOR: theme.base08,\n FUNCTION_COLOR: theme.base08,\n SYMBOL_COLOR: theme.base08,\n LABEL_COLOR: theme.base0D,\n ARROW_COLOR: theme.base0D,\n ITEM_STRING_COLOR: theme.base0B,\n ITEM_STRING_EXPANDED_COLOR: theme.base03\n});\nconst valueColorMap = colors => ({\n String: colors.STRING_COLOR,\n Date: colors.DATE_COLOR,\n Number: colors.NUMBER_COLOR,\n Boolean: colors.BOOLEAN_COLOR,\n Null: colors.NULL_COLOR,\n Undefined: colors.UNDEFINED_COLOR,\n Function: colors.FUNCTION_COLOR,\n Symbol: colors.SYMBOL_COLOR\n});\nconst getDefaultThemeStyling = theme => {\n const colors = colorMap(theme);\n return {\n tree: {\n border: 0,\n padding: 0,\n marginTop: '0.5em',\n marginBottom: '0.5em',\n marginLeft: '0.125em',\n marginRight: 0,\n listStyle: 'none',\n MozUserSelect: 'none',\n WebkitUserSelect: 'none',\n backgroundColor: colors.BACKGROUND_COLOR\n },\n value: (_ref, nodeType, keyPath) => {\n let {\n style\n } = _ref;\n return {\n style: {\n ...style,\n paddingTop: '0.25em',\n paddingRight: 0,\n marginLeft: '0.875em',\n WebkitUserSelect: 'text',\n MozUserSelect: 'text',\n wordWrap: 'break-word',\n paddingLeft: keyPath.length > 1 ? '2.125em' : '1.25em',\n textIndent: '-0.5em',\n wordBreak: 'break-all'\n }\n };\n },\n label: {\n display: 'inline-block',\n color: colors.LABEL_COLOR\n },\n valueLabel: {\n margin: '0 0.5em 0 0'\n },\n valueText: (_ref2, nodeType) => {\n let {\n style\n } = _ref2;\n return {\n style: {\n ...style,\n color: valueColorMap(colors)[nodeType]\n }\n };\n },\n itemRange: (styling, expanded) => ({\n style: {\n paddingTop: expanded ? 0 : '0.25em',\n cursor: 'pointer',\n color: colors.LABEL_COLOR\n }\n }),\n arrow: (_ref3, nodeType, expanded) => {\n let {\n style\n } = _ref3;\n return {\n style: {\n ...style,\n marginLeft: 0,\n transition: '150ms',\n WebkitTransition: '150ms',\n MozTransition: '150ms',\n WebkitTransform: expanded ? 'rotateZ(90deg)' : 'rotateZ(0deg)',\n MozTransform: expanded ? 'rotateZ(90deg)' : 'rotateZ(0deg)',\n transform: expanded ? 'rotateZ(90deg)' : 'rotateZ(0deg)',\n transformOrigin: '45% 50%',\n WebkitTransformOrigin: '45% 50%',\n MozTransformOrigin: '45% 50%',\n position: 'relative',\n lineHeight: '1.1em',\n fontSize: '0.75em'\n }\n };\n },\n arrowContainer: (_ref4, arrowStyle) => {\n let {\n style\n } = _ref4;\n return {\n style: {\n ...style,\n display: 'inline-block',\n paddingRight: '0.5em',\n paddingLeft: arrowStyle === 'double' ? '1em' : 0,\n cursor: 'pointer'\n }\n };\n },\n arrowSign: {\n color: colors.ARROW_COLOR\n },\n arrowSignInner: {\n position: 'absolute',\n top: 0,\n left: '-0.4em'\n },\n nestedNode: (_ref5, keyPath, nodeType, expanded, expandable) => {\n let {\n style\n } = _ref5;\n return {\n style: {\n ...style,\n position: 'relative',\n paddingTop: '0.25em',\n marginLeft: keyPath.length > 1 ? '0.875em' : 0,\n paddingLeft: !expandable ? '1.125em' : 0\n }\n };\n },\n rootNode: {\n padding: 0,\n margin: 0\n },\n nestedNodeLabel: (_ref6, keyPath, nodeType, expanded, expandable) => {\n let {\n style\n } = _ref6;\n return {\n style: {\n ...style,\n margin: 0,\n padding: 0,\n WebkitUserSelect: expandable ? 'inherit' : 'text',\n MozUserSelect: expandable ? 'inherit' : 'text',\n cursor: expandable ? 'pointer' : 'default'\n }\n };\n },\n nestedNodeItemString: (_ref7, keyPath, nodeType, expanded) => {\n let {\n style\n } = _ref7;\n return {\n style: {\n ...style,\n paddingLeft: '0.5em',\n cursor: 'default',\n color: expanded ? colors.ITEM_STRING_EXPANDED_COLOR : colors.ITEM_STRING_COLOR\n }\n };\n },\n nestedNodeItemType: {\n marginLeft: '0.3em',\n marginRight: '0.3em'\n },\n nestedNodeChildren: (_ref8, nodeType, expanded) => {\n let {\n style\n } = _ref8;\n return {\n style: {\n ...style,\n padding: 0,\n margin: 0,\n listStyle: 'none',\n display: expanded ? 'block' : 'none'\n }\n };\n },\n rootNodeChildren: {\n padding: 0,\n margin: 0,\n listStyle: 'none'\n }\n };\n};\nconst createStylingFromTheme = createStyling(getDefaultThemeStyling, {\n defaultBase16: solarized\n});\nexport default createStylingFromTheme;","// ES6 + inline style port of JSONViewer https://bitbucket.org/davevedder/react-json-viewer/\n// all credits and original code to the author\n// Dave Vedder http://www.eskimospy.com/\n// port by Daniele Zannotti http://www.github.com/dzannotti \n\nimport React, { useMemo } from 'react';\nimport JSONNode from './JSONNode';\nimport createStylingFromTheme from './createStylingFromTheme';\nimport { invertTheme } from 'react-base16-styling';\nconst identity = value => value;\nconst expandRootNode = (keyPath, data, level) => level === 0;\nconst defaultItemString = (type, data, itemType, itemString) => /*#__PURE__*/React.createElement(\"span\", null, itemType, \" \", itemString);\nconst defaultLabelRenderer = _ref => {\n let [label] = _ref;\n return /*#__PURE__*/React.createElement(\"span\", null, label, \":\");\n};\nconst noCustomNode = () => false;\nexport function JSONTree(_ref2) {\n let {\n data: value,\n theme,\n invertTheme: shouldInvertTheme,\n keyPath = ['root'],\n labelRenderer = defaultLabelRenderer,\n valueRenderer = identity,\n shouldExpandNodeInitially = expandRootNode,\n hideRoot = false,\n getItemString = defaultItemString,\n postprocessValue = identity,\n isCustomNode = noCustomNode,\n collectionLimit = 50,\n sortObjectKeys = false\n } = _ref2;\n const styling = useMemo(() => createStylingFromTheme(shouldInvertTheme ? invertTheme(theme) : theme), [theme, shouldInvertTheme]);\n return /*#__PURE__*/React.createElement(\"ul\", styling('tree'), /*#__PURE__*/React.createElement(JSONNode, {\n keyPath: hideRoot ? [] : keyPath,\n value: postprocessValue(value),\n isCustomNode: isCustomNode,\n styling: styling,\n labelRenderer: labelRenderer,\n valueRenderer: valueRenderer,\n shouldExpandNodeInitially: shouldExpandNodeInitially,\n hideRoot: hideRoot,\n getItemString: getItemString,\n postprocessValue: postprocessValue,\n collectionLimit: collectionLimit,\n sortObjectKeys: sortObjectKeys\n }));\n}","// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\nimport { jupyterHighlightStyle } from '@jupyterlab/codemirror';\nimport { nullTranslator } from '@jupyterlab/translation';\nimport { InputGroup } from '@jupyterlab/ui-components';\nimport { tags } from '@lezer/highlight';\nimport { JSONExt } from '@lumino/coreutils';\nimport * as React from 'react';\nimport Highlighter from 'react-highlight-words';\nimport { JSONTree } from 'react-json-tree';\nimport { StyleModule } from 'style-mod';\n/**\n * Get the CodeMirror style for a given tag.\n */\nfunction getStyle(tag) {\n var _a;\n return (_a = jupyterHighlightStyle.style([tag])) !== null && _a !== void 0 ? _a : '';\n}\n/**\n * A component that renders JSON data as a collapsible tree.\n */\nexport class Component extends React.Component {\n constructor() {\n super(...arguments);\n this.state = { filter: '', value: '' };\n this.timer = 0;\n this.handleChange = (event) => {\n const { value } = event.target;\n this.setState({ value });\n window.clearTimeout(this.timer);\n this.timer = window.setTimeout(() => {\n this.setState({ filter: value });\n }, 300);\n };\n }\n componentDidMount() {\n StyleModule.mount(document, jupyterHighlightStyle.module);\n }\n render() {\n const translator = this.props.translator || nullTranslator;\n const trans = translator.load('jupyterlab');\n const { data, metadata, forwardedRef } = this.props;\n const root = metadata && metadata.root ? metadata.root : 'root';\n const keyPaths = this.state.filter\n ? filterPaths(data, this.state.filter, [root])\n : [root];\n return (React.createElement(\"div\", { className: \"container\", ref: forwardedRef },\n React.createElement(InputGroup, { className: \"filter\", type: \"text\", placeholder: trans.__('Filter…'), onChange: this.handleChange, value: this.state.value, rightIcon: \"ui-components:search\" }),\n React.createElement(JSONTree, { data: data, collectionLimit: 100, theme: {\n extend: theme,\n valueLabel: getStyle(tags.variableName),\n valueText: getStyle(tags.string),\n nestedNodeItemString: getStyle(tags.comment)\n }, invertTheme: false, keyPath: [root], getItemString: (type, data, itemType, itemString) => Array.isArray(data) ? (\n // Always display array type and the number of items i.e. \"[] 2 items\".\n React.createElement(\"span\", null,\n itemType,\n \" \",\n itemString)) : Object.keys(data).length === 0 ? (\n // Only display object type when it's empty i.e. \"{}\".\n React.createElement(\"span\", null, itemType)) : (null // Upstream typings don't accept null, but it should be ok\n ), labelRenderer: ([label, type]) => {\n return (React.createElement(\"span\", { className: getStyle(tags.keyword) },\n React.createElement(Highlighter, { searchWords: [this.state.filter], textToHighlight: `${label}`, highlightClassName: \"jp-mod-selected\" })));\n }, valueRenderer: raw => {\n let className = getStyle(tags.string);\n if (typeof raw === 'number') {\n className = getStyle(tags.number);\n }\n if (raw === 'true' || raw === 'false') {\n className = getStyle(tags.keyword);\n }\n return (React.createElement(\"span\", { className: className },\n React.createElement(Highlighter, { searchWords: [this.state.filter], textToHighlight: `${raw}`, highlightClassName: \"jp-mod-selected\" })));\n }, shouldExpandNodeInitially: (keyPath, data, level) => metadata && metadata.expanded\n ? true\n : keyPaths.join(',').includes(keyPath.join(',')) })));\n }\n}\n// Provide an invalid theme object (this is on purpose!) to invalidate the\n// react-json-tree's inline styles that override CodeMirror CSS classes\nconst theme = {\n scheme: 'jupyter',\n base00: 'invalid',\n base01: 'invalid',\n base02: 'invalid',\n base03: 'invalid',\n base04: 'invalid',\n base05: 'invalid',\n base06: 'invalid',\n base07: 'invalid',\n base08: 'invalid',\n base09: 'invalid',\n base0A: 'invalid',\n base0B: 'invalid',\n base0C: 'invalid',\n base0D: 'invalid',\n base0E: 'invalid',\n base0F: 'invalid',\n author: 'invalid'\n};\nfunction objectIncludes(data, query) {\n return JSON.stringify(data).includes(query);\n}\nfunction filterPaths(data, query, parent = ['root']) {\n if (JSONExt.isArray(data)) {\n return data.reduce((result, item, index) => {\n if (item && typeof item === 'object' && objectIncludes(item, query)) {\n return [\n ...result,\n [index, ...parent].join(','),\n ...filterPaths(item, query, [index, ...parent])\n ];\n }\n return result;\n }, []);\n }\n if (JSONExt.isObject(data)) {\n return Object.keys(data).reduce((result, key) => {\n const item = data[key];\n if (item &&\n typeof item === 'object' &&\n (key.includes(query) || objectIncludes(item, query))) {\n return [\n ...result,\n [key, ...parent].join(','),\n ...filterPaths(item, query, [key, ...parent])\n ];\n }\n return result;\n }, []);\n }\n return [];\n}\n//# sourceMappingURL=component.js.map","(function (global, factory) {\n typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :\n typeof define === 'function' && define.amd ? define(['exports'], factory) :\n (global = typeof globalThis !== 'undefined' ? globalThis : global || self, factory(global.lumino_coreutils = {}));\n})(this, (function (exports) { 'use strict';\n\n // Copyright (c) Jupyter Development Team.\n // Distributed under the terms of the Modified BSD License.\n /*-----------------------------------------------------------------------------\n | Copyright (c) 2014-2017, PhosphorJS Contributors\n |\n | Distributed under the terms of the BSD 3-Clause License.\n |\n | The full license is in the file LICENSE, distributed with this software.\n |----------------------------------------------------------------------------*/\n /**\n * The namespace for JSON-specific functions.\n */\n exports.JSONExt = void 0;\n (function (JSONExt) {\n /**\n * A shared frozen empty JSONObject\n */\n JSONExt.emptyObject = Object.freeze({});\n /**\n * A shared frozen empty JSONArray\n */\n JSONExt.emptyArray = Object.freeze([]);\n /**\n * Test whether a JSON value is a primitive.\n *\n * @param value - The JSON value of interest.\n *\n * @returns `true` if the value is a primitive,`false` otherwise.\n */\n function isPrimitive(value) {\n return (value === null ||\n typeof value === 'boolean' ||\n typeof value === 'number' ||\n typeof value === 'string');\n }\n JSONExt.isPrimitive = isPrimitive;\n function isArray(value) {\n return Array.isArray(value);\n }\n JSONExt.isArray = isArray;\n function isObject(value) {\n return !isPrimitive(value) && !isArray(value);\n }\n JSONExt.isObject = isObject;\n /**\n * Compare two JSON values for deep equality.\n *\n * @param first - The first JSON value of interest.\n *\n * @param second - The second JSON value of interest.\n *\n * @returns `true` if the values are equivalent, `false` otherwise.\n */\n function deepEqual(first, second) {\n // Check referential and primitive equality first.\n if (first === second) {\n return true;\n }\n // If one is a primitive, the `===` check ruled out the other.\n if (isPrimitive(first) || isPrimitive(second)) {\n return false;\n }\n // Test whether they are arrays.\n let a1 = isArray(first);\n let a2 = isArray(second);\n // Bail if the types are different.\n if (a1 !== a2) {\n return false;\n }\n // If they are both arrays, compare them.\n if (a1 && a2) {\n return deepArrayEqual(first, second);\n }\n // At this point, they must both be objects.\n return deepObjectEqual(first, second);\n }\n JSONExt.deepEqual = deepEqual;\n /**\n * Create a deep copy of a JSON value.\n *\n * @param value - The JSON value to copy.\n *\n * @returns A deep copy of the given JSON value.\n */\n function deepCopy(value) {\n // Do nothing for primitive values.\n if (isPrimitive(value)) {\n return value;\n }\n // Deep copy an array.\n if (isArray(value)) {\n return deepArrayCopy(value);\n }\n // Deep copy an object.\n return deepObjectCopy(value);\n }\n JSONExt.deepCopy = deepCopy;\n /**\n * Compare two JSON arrays for deep equality.\n */\n function deepArrayEqual(first, second) {\n // Check referential equality first.\n if (first === second) {\n return true;\n }\n // Test the arrays for equal length.\n if (first.length !== second.length) {\n return false;\n }\n // Compare the values for equality.\n for (let i = 0, n = first.length; i < n; ++i) {\n if (!deepEqual(first[i], second[i])) {\n return false;\n }\n }\n // At this point, the arrays are equal.\n return true;\n }\n /**\n * Compare two JSON objects for deep equality.\n */\n function deepObjectEqual(first, second) {\n // Check referential equality first.\n if (first === second) {\n return true;\n }\n // Check for the first object's keys in the second object.\n for (let key in first) {\n if (first[key] !== undefined && !(key in second)) {\n return false;\n }\n }\n // Check for the second object's keys in the first object.\n for (let key in second) {\n if (second[key] !== undefined && !(key in first)) {\n return false;\n }\n }\n // Compare the values for equality.\n for (let key in first) {\n // Get the values.\n let firstValue = first[key];\n let secondValue = second[key];\n // If both are undefined, ignore the key.\n if (firstValue === undefined && secondValue === undefined) {\n continue;\n }\n // If only one value is undefined, the objects are not equal.\n if (firstValue === undefined || secondValue === undefined) {\n return false;\n }\n // Compare the values.\n if (!deepEqual(firstValue, secondValue)) {\n return false;\n }\n }\n // At this point, the objects are equal.\n return true;\n }\n /**\n * Create a deep copy of a JSON array.\n */\n function deepArrayCopy(value) {\n let result = new Array(value.length);\n for (let i = 0, n = value.length; i < n; ++i) {\n result[i] = deepCopy(value[i]);\n }\n return result;\n }\n /**\n * Create a deep copy of a JSON object.\n */\n function deepObjectCopy(value) {\n let result = {};\n for (let key in value) {\n // Ignore undefined values.\n let subvalue = value[key];\n if (subvalue === undefined) {\n continue;\n }\n result[key] = deepCopy(subvalue);\n }\n return result;\n }\n })(exports.JSONExt || (exports.JSONExt = {}));\n\n // Copyright (c) Jupyter Development Team.\n // Distributed under the terms of the Modified BSD License.\n /*-----------------------------------------------------------------------------\n | Copyright (c) 2014-2017, PhosphorJS Contributors\n |\n | Distributed under the terms of the BSD 3-Clause License.\n |\n | The full license is in the file LICENSE, distributed with this software.\n |----------------------------------------------------------------------------*/\n /**\n * An object which stores MIME data for general application use.\n *\n * #### Notes\n * This class does not attempt to enforce \"correctness\" of MIME types\n * and their associated data. Since this class is designed to transfer\n * arbitrary data and objects within the same application, it assumes\n * that the user provides correct and accurate data.\n */\n class MimeData {\n constructor() {\n this._types = [];\n this._values = [];\n }\n /**\n * Get an array of the MIME types contained within the dataset.\n *\n * @returns A new array of the MIME types, in order of insertion.\n */\n types() {\n return this._types.slice();\n }\n /**\n * Test whether the dataset has an entry for the given type.\n *\n * @param mime - The MIME type of interest.\n *\n * @returns `true` if the dataset contains a value for the given\n * MIME type, `false` otherwise.\n */\n hasData(mime) {\n return this._types.indexOf(mime) !== -1;\n }\n /**\n * Get the data value for the given MIME type.\n *\n * @param mime - The MIME type of interest.\n *\n * @returns The value for the given MIME type, or `undefined` if\n * the dataset does not contain a value for the type.\n */\n getData(mime) {\n let i = this._types.indexOf(mime);\n return i !== -1 ? this._values[i] : undefined;\n }\n /**\n * Set the data value for the given MIME type.\n *\n * @param mime - The MIME type of interest.\n *\n * @param data - The data value for the given MIME type.\n *\n * #### Notes\n * This will overwrite any previous entry for the MIME type.\n */\n setData(mime, data) {\n this.clearData(mime);\n this._types.push(mime);\n this._values.push(data);\n }\n /**\n * Remove the data entry for the given MIME type.\n *\n * @param mime - The MIME type of interest.\n *\n * #### Notes\n * This is a no-op if there is no entry for the given MIME type.\n */\n clearData(mime) {\n let i = this._types.indexOf(mime);\n if (i !== -1) {\n this._types.splice(i, 1);\n this._values.splice(i, 1);\n }\n }\n /**\n * Remove all data entries from the dataset.\n */\n clear() {\n this._types.length = 0;\n this._values.length = 0;\n }\n }\n\n // Copyright (c) Jupyter Development Team.\n // Distributed under the terms of the Modified BSD License.\n /*-----------------------------------------------------------------------------\n | Copyright (c) 2014-2017, PhosphorJS Contributors\n |\n | Distributed under the terms of the BSD 3-Clause License.\n |\n | The full license is in the file LICENSE, distributed with this software.\n |----------------------------------------------------------------------------*/\n /**\n * A class which wraps a promise into a delegate object.\n *\n * #### Notes\n * This class is useful when the logic to resolve or reject a promise\n * cannot be defined at the point where the promise is created.\n */\n class PromiseDelegate {\n /**\n * Construct a new promise delegate.\n */\n constructor() {\n this.promise = new Promise((resolve, reject) => {\n this._resolve = resolve;\n this._reject = reject;\n });\n }\n /**\n * Resolve the wrapped promise with the given value.\n *\n * @param value - The value to use for resolving the promise.\n */\n resolve(value) {\n let resolve = this._resolve;\n resolve(value);\n }\n /**\n * Reject the wrapped promise with the given value.\n *\n * @reason - The reason for rejecting the promise.\n */\n reject(reason) {\n let reject = this._reject;\n reject(reason);\n }\n }\n\n // Copyright (c) Jupyter Development Team.\n // Distributed under the terms of the Modified BSD License.\n /*-----------------------------------------------------------------------------\n | Copyright (c) 2014-2017, PhosphorJS Contributors\n |\n | Distributed under the terms of the BSD 3-Clause License.\n |\n | The full license is in the file LICENSE, distributed with this software.\n |----------------------------------------------------------------------------*/\n /**\n * A runtime object which captures compile-time type information.\n *\n * #### Notes\n * A token captures the compile-time type of an interface or class in\n * an object which can be used at runtime in a type-safe fashion.\n */\n class Token {\n /**\n * Construct a new token.\n *\n * @param name - A human readable name for the token.\n * @param description - Token purpose description for documentation.\n */\n constructor(name, description) {\n this.name = name;\n this.description = description !== null && description !== void 0 ? description : '';\n this._tokenStructuralPropertyT = null;\n }\n }\n\n // Copyright (c) Jupyter Development Team.\n // Distributed under the terms of the Modified BSD License.\n /*-----------------------------------------------------------------------------\n | Copyright (c) 2014-2017, PhosphorJS Contributors\n |\n | Distributed under the terms of the BSD 3-Clause License.\n |\n | The full license is in the file LICENSE, distributed with this software.\n |----------------------------------------------------------------------------*/\n // Fallback\n function fallbackRandomValues(buffer) {\n let value = 0;\n for (let i = 0, n = buffer.length; i < n; ++i) {\n if (i % 4 === 0) {\n value = (Math.random() * 0xffffffff) >>> 0;\n }\n buffer[i] = value & 0xff;\n value >>>= 8;\n }\n }\n\n // Copyright (c) Jupyter Development Team.\n // Distributed under the terms of the Modified BSD License.\n /*-----------------------------------------------------------------------------\n | Copyright (c) 2014-2017, PhosphorJS Contributors\n |\n | Distributed under the terms of the BSD 3-Clause License.\n |\n | The full license is in the file LICENSE, distributed with this software.\n |----------------------------------------------------------------------------*/\n /**\n * The namespace for random number related functionality.\n */\n exports.Random = void 0;\n (function (Random) {\n /**\n * A function which generates random bytes.\n *\n * @param buffer - The `Uint8Array` to fill with random bytes.\n *\n * #### Notes\n * A cryptographically strong random number generator will be used if\n * available. Otherwise, `Math.random` will be used as a fallback for\n * randomness.\n *\n * The following RNGs are supported, listed in order of precedence:\n * - `window.crypto.getRandomValues`\n * - `window.msCrypto.getRandomValues`\n * - `require('crypto').randomFillSync\n * - `require('crypto').randomBytes\n * - `Math.random`\n */\n Random.getRandomValues = (() => {\n // Look up the crypto module if available.\n const crypto = (typeof window !== 'undefined' && (window.crypto || window.msCrypto)) ||\n null;\n // Modern browsers and IE 11\n if (crypto && typeof crypto.getRandomValues === 'function') {\n return function getRandomValues(buffer) {\n return crypto.getRandomValues(buffer);\n };\n }\n // Fallback\n return fallbackRandomValues;\n })();\n })(exports.Random || (exports.Random = {}));\n\n // Copyright (c) Jupyter Development Team.\n // Distributed under the terms of the Modified BSD License.\n /*-----------------------------------------------------------------------------\n | Copyright (c) 2014-2017, PhosphorJS Contributors\n |\n | Distributed under the terms of the BSD 3-Clause License.\n |\n | The full license is in the file LICENSE, distributed with this software.\n |----------------------------------------------------------------------------*/\n /**\n * A function which creates a function that generates UUID v4 identifiers.\n *\n * @returns A new function that creates a UUID v4 string.\n *\n * #### Notes\n * This implementation complies with RFC 4122.\n *\n * This uses `Random.getRandomValues()` for random bytes, which in\n * turn will use the underlying `crypto` module of the platform if\n * it is available. The fallback for randomness is `Math.random`.\n */\n function uuid4Factory(getRandomValues) {\n // Create a 16 byte array to hold the random values.\n const bytes = new Uint8Array(16);\n // Create a look up table from bytes to hex strings.\n const lut = new Array(256);\n // Pad the single character hex digits with a leading zero.\n for (let i = 0; i < 16; ++i) {\n lut[i] = '0' + i.toString(16);\n }\n // Populate the rest of the hex digits.\n for (let i = 16; i < 256; ++i) {\n lut[i] = i.toString(16);\n }\n // Return a function which generates the UUID.\n return function uuid4() {\n // Get a new batch of random values.\n getRandomValues(bytes);\n // Set the UUID version number to 4.\n bytes[6] = 0x40 | (bytes[6] & 0x0f);\n // Set the clock sequence bit to the RFC spec.\n bytes[8] = 0x80 | (bytes[8] & 0x3f);\n // Assemble the UUID string.\n return (lut[bytes[0]] +\n lut[bytes[1]] +\n lut[bytes[2]] +\n lut[bytes[3]] +\n '-' +\n lut[bytes[4]] +\n lut[bytes[5]] +\n '-' +\n lut[bytes[6]] +\n lut[bytes[7]] +\n '-' +\n lut[bytes[8]] +\n lut[bytes[9]] +\n '-' +\n lut[bytes[10]] +\n lut[bytes[11]] +\n lut[bytes[12]] +\n lut[bytes[13]] +\n lut[bytes[14]] +\n lut[bytes[15]]);\n };\n }\n\n // Copyright (c) Jupyter Development Team.\n // Distributed under the terms of the Modified BSD License.\n /*-----------------------------------------------------------------------------\n | Copyright (c) 2014-2017, PhosphorJS Contributors\n |\n | Distributed under the terms of the BSD 3-Clause License.\n |\n | The full license is in the file LICENSE, distributed with this software.\n |----------------------------------------------------------------------------*/\n /**\n * The namespace for UUID related functionality.\n */\n exports.UUID = void 0;\n (function (UUID) {\n /**\n * A function which generates UUID v4 identifiers.\n *\n * @returns A new UUID v4 string.\n *\n * #### Notes\n * This implementation complies with RFC 4122.\n *\n * This uses `Random.getRandomValues()` for random bytes, which in\n * turn will use the underlying `crypto` module of the platform if\n * it is available. The fallback for randomness is `Math.random`.\n */\n UUID.uuid4 = uuid4Factory(exports.Random.getRandomValues);\n })(exports.UUID || (exports.UUID = {}));\n\n exports.MimeData = MimeData;\n exports.PromiseDelegate = PromiseDelegate;\n exports.Token = Token;\n\n}));\n//# sourceMappingURL=index.js.map\n","(function (global, factory) {\n typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :\n typeof define === 'function' && define.amd ? define(['exports'], factory) :\n (global = typeof globalThis !== 'undefined' ? globalThis : global || self, factory(global.lumino_coreutils = {}));\n})(this, (function (exports) { 'use strict';\n\n // Copyright (c) Jupyter Development Team.\n // Distributed under the terms of the Modified BSD License.\n /*-----------------------------------------------------------------------------\n | Copyright (c) 2014-2017, PhosphorJS Contributors\n |\n | Distributed under the terms of the BSD 3-Clause License.\n |\n | The full license is in the file LICENSE, distributed with this software.\n |----------------------------------------------------------------------------*/\n /**\n * The namespace for JSON-specific functions.\n */\n exports.JSONExt = void 0;\n (function (JSONExt) {\n /**\n * A shared frozen empty JSONObject\n */\n JSONExt.emptyObject = Object.freeze({});\n /**\n * A shared frozen empty JSONArray\n */\n JSONExt.emptyArray = Object.freeze([]);\n /**\n * Test whether a JSON value is a primitive.\n *\n * @param value - The JSON value of interest.\n *\n * @returns `true` if the value is a primitive,`false` otherwise.\n */\n function isPrimitive(value) {\n return (value === null ||\n typeof value === 'boolean' ||\n typeof value === 'number' ||\n typeof value === 'string');\n }\n JSONExt.isPrimitive = isPrimitive;\n function isArray(value) {\n return Array.isArray(value);\n }\n JSONExt.isArray = isArray;\n function isObject(value) {\n return !isPrimitive(value) && !isArray(value);\n }\n JSONExt.isObject = isObject;\n /**\n * Compare two JSON values for deep equality.\n *\n * @param first - The first JSON value of interest.\n *\n * @param second - The second JSON value of interest.\n *\n * @returns `true` if the values are equivalent, `false` otherwise.\n */\n function deepEqual(first, second) {\n // Check referential and primitive equality first.\n if (first === second) {\n return true;\n }\n // If one is a primitive, the `===` check ruled out the other.\n if (isPrimitive(first) || isPrimitive(second)) {\n return false;\n }\n // Test whether they are arrays.\n let a1 = isArray(first);\n let a2 = isArray(second);\n // Bail if the types are different.\n if (a1 !== a2) {\n return false;\n }\n // If they are both arrays, compare them.\n if (a1 && a2) {\n return deepArrayEqual(first, second);\n }\n // At this point, they must both be objects.\n return deepObjectEqual(first, second);\n }\n JSONExt.deepEqual = deepEqual;\n /**\n * Create a deep copy of a JSON value.\n *\n * @param value - The JSON value to copy.\n *\n * @returns A deep copy of the given JSON value.\n */\n function deepCopy(value) {\n // Do nothing for primitive values.\n if (isPrimitive(value)) {\n return value;\n }\n // Deep copy an array.\n if (isArray(value)) {\n return deepArrayCopy(value);\n }\n // Deep copy an object.\n return deepObjectCopy(value);\n }\n JSONExt.deepCopy = deepCopy;\n /**\n * Compare two JSON arrays for deep equality.\n */\n function deepArrayEqual(first, second) {\n // Check referential equality first.\n if (first === second) {\n return true;\n }\n // Test the arrays for equal length.\n if (first.length !== second.length) {\n return false;\n }\n // Compare the values for equality.\n for (let i = 0, n = first.length; i < n; ++i) {\n if (!deepEqual(first[i], second[i])) {\n return false;\n }\n }\n // At this point, the arrays are equal.\n return true;\n }\n /**\n * Compare two JSON objects for deep equality.\n */\n function deepObjectEqual(first, second) {\n // Check referential equality first.\n if (first === second) {\n return true;\n }\n // Check for the first object's keys in the second object.\n for (let key in first) {\n if (first[key] !== undefined && !(key in second)) {\n return false;\n }\n }\n // Check for the second object's keys in the first object.\n for (let key in second) {\n if (second[key] !== undefined && !(key in first)) {\n return false;\n }\n }\n // Compare the values for equality.\n for (let key in first) {\n // Get the values.\n let firstValue = first[key];\n let secondValue = second[key];\n // If both are undefined, ignore the key.\n if (firstValue === undefined && secondValue === undefined) {\n continue;\n }\n // If only one value is undefined, the objects are not equal.\n if (firstValue === undefined || secondValue === undefined) {\n return false;\n }\n // Compare the values.\n if (!deepEqual(firstValue, secondValue)) {\n return false;\n }\n }\n // At this point, the objects are equal.\n return true;\n }\n /**\n * Create a deep copy of a JSON array.\n */\n function deepArrayCopy(value) {\n let result = new Array(value.length);\n for (let i = 0, n = value.length; i < n; ++i) {\n result[i] = deepCopy(value[i]);\n }\n return result;\n }\n /**\n * Create a deep copy of a JSON object.\n */\n function deepObjectCopy(value) {\n let result = {};\n for (let key in value) {\n // Ignore undefined values.\n let subvalue = value[key];\n if (subvalue === undefined) {\n continue;\n }\n result[key] = deepCopy(subvalue);\n }\n return result;\n }\n })(exports.JSONExt || (exports.JSONExt = {}));\n\n // Copyright (c) Jupyter Development Team.\n // Distributed under the terms of the Modified BSD License.\n /*-----------------------------------------------------------------------------\n | Copyright (c) 2014-2017, PhosphorJS Contributors\n |\n | Distributed under the terms of the BSD 3-Clause License.\n |\n | The full license is in the file LICENSE, distributed with this software.\n |----------------------------------------------------------------------------*/\n /**\n * An object which stores MIME data for general application use.\n *\n * #### Notes\n * This class does not attempt to enforce \"correctness\" of MIME types\n * and their associated data. Since this class is designed to transfer\n * arbitrary data and objects within the same application, it assumes\n * that the user provides correct and accurate data.\n */\n class MimeData {\n constructor() {\n this._types = [];\n this._values = [];\n }\n /**\n * Get an array of the MIME types contained within the dataset.\n *\n * @returns A new array of the MIME types, in order of insertion.\n */\n types() {\n return this._types.slice();\n }\n /**\n * Test whether the dataset has an entry for the given type.\n *\n * @param mime - The MIME type of interest.\n *\n * @returns `true` if the dataset contains a value for the given\n * MIME type, `false` otherwise.\n */\n hasData(mime) {\n return this._types.indexOf(mime) !== -1;\n }\n /**\n * Get the data value for the given MIME type.\n *\n * @param mime - The MIME type of interest.\n *\n * @returns The value for the given MIME type, or `undefined` if\n * the dataset does not contain a value for the type.\n */\n getData(mime) {\n let i = this._types.indexOf(mime);\n return i !== -1 ? this._values[i] : undefined;\n }\n /**\n * Set the data value for the given MIME type.\n *\n * @param mime - The MIME type of interest.\n *\n * @param data - The data value for the given MIME type.\n *\n * #### Notes\n * This will overwrite any previous entry for the MIME type.\n */\n setData(mime, data) {\n this.clearData(mime);\n this._types.push(mime);\n this._values.push(data);\n }\n /**\n * Remove the data entry for the given MIME type.\n *\n * @param mime - The MIME type of interest.\n *\n * #### Notes\n * This is a no-op if there is no entry for the given MIME type.\n */\n clearData(mime) {\n let i = this._types.indexOf(mime);\n if (i !== -1) {\n this._types.splice(i, 1);\n this._values.splice(i, 1);\n }\n }\n /**\n * Remove all data entries from the dataset.\n */\n clear() {\n this._types.length = 0;\n this._values.length = 0;\n }\n }\n\n // Copyright (c) Jupyter Development Team.\n // Distributed under the terms of the Modified BSD License.\n /*-----------------------------------------------------------------------------\n | Copyright (c) 2014-2017, PhosphorJS Contributors\n |\n | Distributed under the terms of the BSD 3-Clause License.\n |\n | The full license is in the file LICENSE, distributed with this software.\n |----------------------------------------------------------------------------*/\n /**\n * A class which wraps a promise into a delegate object.\n *\n * #### Notes\n * This class is useful when the logic to resolve or reject a promise\n * cannot be defined at the point where the promise is created.\n */\n class PromiseDelegate {\n /**\n * Construct a new promise delegate.\n */\n constructor() {\n this.promise = new Promise((resolve, reject) => {\n this._resolve = resolve;\n this._reject = reject;\n });\n }\n /**\n * Resolve the wrapped promise with the given value.\n *\n * @param value - The value to use for resolving the promise.\n */\n resolve(value) {\n let resolve = this._resolve;\n resolve(value);\n }\n /**\n * Reject the wrapped promise with the given value.\n *\n * @reason - The reason for rejecting the promise.\n */\n reject(reason) {\n let reject = this._reject;\n reject(reason);\n }\n }\n\n // Copyright (c) Jupyter Development Team.\n // Distributed under the terms of the Modified BSD License.\n /*-----------------------------------------------------------------------------\n | Copyright (c) 2014-2017, PhosphorJS Contributors\n |\n | Distributed under the terms of the BSD 3-Clause License.\n |\n | The full license is in the file LICENSE, distributed with this software.\n |----------------------------------------------------------------------------*/\n /**\n * A runtime object which captures compile-time type information.\n *\n * #### Notes\n * A token captures the compile-time type of an interface or class in\n * an object which can be used at runtime in a type-safe fashion.\n */\n class Token {\n /**\n * Construct a new token.\n *\n * @param name - A human readable name for the token.\n * @param description - Token purpose description for documentation.\n */\n constructor(name, description) {\n this.name = name;\n this.description = description !== null && description !== void 0 ? description : '';\n this._tokenStructuralPropertyT = null;\n }\n }\n\n // Copyright (c) Jupyter Development Team.\n // Distributed under the terms of the Modified BSD License.\n /*-----------------------------------------------------------------------------\n | Copyright (c) 2014-2017, PhosphorJS Contributors\n |\n | Distributed under the terms of the BSD 3-Clause License.\n |\n | The full license is in the file LICENSE, distributed with this software.\n |----------------------------------------------------------------------------*/\n // Fallback\n function fallbackRandomValues(buffer) {\n let value = 0;\n for (let i = 0, n = buffer.length; i < n; ++i) {\n if (i % 4 === 0) {\n value = (Math.random() * 0xffffffff) >>> 0;\n }\n buffer[i] = value & 0xff;\n value >>>= 8;\n }\n }\n\n // Copyright (c) Jupyter Development Team.\n // Distributed under the terms of the Modified BSD License.\n /*-----------------------------------------------------------------------------\n | Copyright (c) 2014-2017, PhosphorJS Contributors\n |\n | Distributed under the terms of the BSD 3-Clause License.\n |\n | The full license is in the file LICENSE, distributed with this software.\n |----------------------------------------------------------------------------*/\n /**\n * The namespace for random number related functionality.\n */\n exports.Random = void 0;\n (function (Random) {\n /**\n * A function which generates random bytes.\n *\n * @param buffer - The `Uint8Array` to fill with random bytes.\n *\n * #### Notes\n * A cryptographically strong random number generator will be used if\n * available. Otherwise, `Math.random` will be used as a fallback for\n * randomness.\n *\n * The following RNGs are supported, listed in order of precedence:\n * - `window.crypto.getRandomValues`\n * - `window.msCrypto.getRandomValues`\n * - `require('crypto').randomFillSync\n * - `require('crypto').randomBytes\n * - `Math.random`\n */\n Random.getRandomValues = (() => {\n // Look up the crypto module if available.\n const crypto = (typeof window !== 'undefined' && (window.crypto || window.msCrypto)) ||\n null;\n // Modern browsers and IE 11\n if (crypto && typeof crypto.getRandomValues === 'function') {\n return function getRandomValues(buffer) {\n return crypto.getRandomValues(buffer);\n };\n }\n // Fallback\n return fallbackRandomValues;\n })();\n })(exports.Random || (exports.Random = {}));\n\n // Copyright (c) Jupyter Development Team.\n // Distributed under the terms of the Modified BSD License.\n /*-----------------------------------------------------------------------------\n | Copyright (c) 2014-2017, PhosphorJS Contributors\n |\n | Distributed under the terms of the BSD 3-Clause License.\n |\n | The full license is in the file LICENSE, distributed with this software.\n |----------------------------------------------------------------------------*/\n /**\n * A function which creates a function that generates UUID v4 identifiers.\n *\n * @returns A new function that creates a UUID v4 string.\n *\n * #### Notes\n * This implementation complies with RFC 4122.\n *\n * This uses `Random.getRandomValues()` for random bytes, which in\n * turn will use the underlying `crypto` module of the platform if\n * it is available. The fallback for randomness is `Math.random`.\n */\n function uuid4Factory(getRandomValues) {\n // Create a 16 byte array to hold the random values.\n const bytes = new Uint8Array(16);\n // Create a look up table from bytes to hex strings.\n const lut = new Array(256);\n // Pad the single character hex digits with a leading zero.\n for (let i = 0; i < 16; ++i) {\n lut[i] = '0' + i.toString(16);\n }\n // Populate the rest of the hex digits.\n for (let i = 16; i < 256; ++i) {\n lut[i] = i.toString(16);\n }\n // Return a function which generates the UUID.\n return function uuid4() {\n // Get a new batch of random values.\n getRandomValues(bytes);\n // Set the UUID version number to 4.\n bytes[6] = 0x40 | (bytes[6] & 0x0f);\n // Set the clock sequence bit to the RFC spec.\n bytes[8] = 0x80 | (bytes[8] & 0x3f);\n // Assemble the UUID string.\n return (lut[bytes[0]] +\n lut[bytes[1]] +\n lut[bytes[2]] +\n lut[bytes[3]] +\n '-' +\n lut[bytes[4]] +\n lut[bytes[5]] +\n '-' +\n lut[bytes[6]] +\n lut[bytes[7]] +\n '-' +\n lut[bytes[8]] +\n lut[bytes[9]] +\n '-' +\n lut[bytes[10]] +\n lut[bytes[11]] +\n lut[bytes[12]] +\n lut[bytes[13]] +\n lut[bytes[14]] +\n lut[bytes[15]]);\n };\n }\n\n // Copyright (c) Jupyter Development Team.\n // Distributed under the terms of the Modified BSD License.\n /*-----------------------------------------------------------------------------\n | Copyright (c) 2014-2017, PhosphorJS Contributors\n |\n | Distributed under the terms of the BSD 3-Clause License.\n |\n | The full license is in the file LICENSE, distributed with this software.\n |----------------------------------------------------------------------------*/\n /**\n * The namespace for UUID related functionality.\n */\n exports.UUID = void 0;\n (function (UUID) {\n /**\n * A function which generates UUID v4 identifiers.\n *\n * @returns A new UUID v4 string.\n *\n * #### Notes\n * This implementation complies with RFC 4122.\n *\n * This uses `Random.getRandomValues()` for random bytes, which in\n * turn will use the underlying `crypto` module of the platform if\n * it is available. The fallback for randomness is `Math.random`.\n */\n UUID.uuid4 = uuid4Factory(exports.Random.getRandomValues);\n })(exports.UUID || (exports.UUID = {}));\n\n exports.MimeData = MimeData;\n exports.PromiseDelegate = PromiseDelegate;\n exports.Token = Token;\n\n}));\n//# sourceMappingURL=index.js.map\n","import { Annotation, StateEffect, EditorSelection, codePointAt, codePointSize, fromCodePoint, Facet, combineConfig, StateField, Prec, Text, MapMode, RangeValue, RangeSet, CharCategory } from '@codemirror/state';\nimport { Direction, logException, showTooltip, EditorView, ViewPlugin, getTooltip, Decoration, WidgetType, keymap } from '@codemirror/view';\nimport { syntaxTree, indentUnit } from '@codemirror/language';\n\n/**\nAn instance of this is passed to completion source functions.\n*/\nclass CompletionContext {\n /**\n Create a new completion context. (Mostly useful for testing\n completion sources—in the editor, the extension will create\n these for you.)\n */\n constructor(\n /**\n The editor state that the completion happens in.\n */\n state, \n /**\n The position at which the completion is happening.\n */\n pos, \n /**\n Indicates whether completion was activated explicitly, or\n implicitly by typing. The usual way to respond to this is to\n only return completions when either there is part of a\n completable entity before the cursor, or `explicit` is true.\n */\n explicit) {\n this.state = state;\n this.pos = pos;\n this.explicit = explicit;\n /**\n @internal\n */\n this.abortListeners = [];\n }\n /**\n Get the extent, content, and (if there is a token) type of the\n token before `this.pos`.\n */\n tokenBefore(types) {\n let token = syntaxTree(this.state).resolveInner(this.pos, -1);\n while (token && types.indexOf(token.name) < 0)\n token = token.parent;\n return token ? { from: token.from, to: this.pos,\n text: this.state.sliceDoc(token.from, this.pos),\n type: token.type } : null;\n }\n /**\n Get the match of the given expression directly before the\n cursor.\n */\n matchBefore(expr) {\n let line = this.state.doc.lineAt(this.pos);\n let start = Math.max(line.from, this.pos - 250);\n let str = line.text.slice(start - line.from, this.pos - line.from);\n let found = str.search(ensureAnchor(expr, false));\n return found < 0 ? null : { from: start + found, to: this.pos, text: str.slice(found) };\n }\n /**\n Yields true when the query has been aborted. Can be useful in\n asynchronous queries to avoid doing work that will be ignored.\n */\n get aborted() { return this.abortListeners == null; }\n /**\n Allows you to register abort handlers, which will be called when\n the query is\n [aborted](https://codemirror.net/6/docs/ref/#autocomplete.CompletionContext.aborted).\n */\n addEventListener(type, listener) {\n if (type == \"abort\" && this.abortListeners)\n this.abortListeners.push(listener);\n }\n}\nfunction toSet(chars) {\n let flat = Object.keys(chars).join(\"\");\n let words = /\\w/.test(flat);\n if (words)\n flat = flat.replace(/\\w/g, \"\");\n return `[${words ? \"\\\\w\" : \"\"}${flat.replace(/[^\\w\\s]/g, \"\\\\$&\")}]`;\n}\nfunction prefixMatch(options) {\n let first = Object.create(null), rest = Object.create(null);\n for (let { label } of options) {\n first[label[0]] = true;\n for (let i = 1; i < label.length; i++)\n rest[label[i]] = true;\n }\n let source = toSet(first) + toSet(rest) + \"*$\";\n return [new RegExp(\"^\" + source), new RegExp(source)];\n}\n/**\nGiven a a fixed array of options, return an autocompleter that\ncompletes them.\n*/\nfunction completeFromList(list) {\n let options = list.map(o => typeof o == \"string\" ? { label: o } : o);\n let [validFor, match] = options.every(o => /^\\w+$/.test(o.label)) ? [/\\w*$/, /\\w+$/] : prefixMatch(options);\n return (context) => {\n let token = context.matchBefore(match);\n return token || context.explicit ? { from: token ? token.from : context.pos, options, validFor } : null;\n };\n}\n/**\nWrap the given completion source so that it will only fire when the\ncursor is in a syntax node with one of the given names.\n*/\nfunction ifIn(nodes, source) {\n return (context) => {\n for (let pos = syntaxTree(context.state).resolveInner(context.pos, -1); pos; pos = pos.parent) {\n if (nodes.indexOf(pos.name) > -1)\n return source(context);\n if (pos.type.isTop)\n break;\n }\n return null;\n };\n}\n/**\nWrap the given completion source so that it will not fire when the\ncursor is in a syntax node with one of the given names.\n*/\nfunction ifNotIn(nodes, source) {\n return (context) => {\n for (let pos = syntaxTree(context.state).resolveInner(context.pos, -1); pos; pos = pos.parent) {\n if (nodes.indexOf(pos.name) > -1)\n return null;\n if (pos.type.isTop)\n break;\n }\n return source(context);\n };\n}\nclass Option {\n constructor(completion, source, match, score) {\n this.completion = completion;\n this.source = source;\n this.match = match;\n this.score = score;\n }\n}\nfunction cur(state) { return state.selection.main.from; }\n// Make sure the given regexp has a $ at its end and, if `start` is\n// true, a ^ at its start.\nfunction ensureAnchor(expr, start) {\n var _a;\n let { source } = expr;\n let addStart = start && source[0] != \"^\", addEnd = source[source.length - 1] != \"$\";\n if (!addStart && !addEnd)\n return expr;\n return new RegExp(`${addStart ? \"^\" : \"\"}(?:${source})${addEnd ? \"$\" : \"\"}`, (_a = expr.flags) !== null && _a !== void 0 ? _a : (expr.ignoreCase ? \"i\" : \"\"));\n}\n/**\nThis annotation is added to transactions that are produced by\npicking a completion.\n*/\nconst pickedCompletion = /*@__PURE__*/Annotation.define();\n/**\nHelper function that returns a transaction spec which inserts a\ncompletion's text in the main selection range, and any other\nselection range that has the same text in front of it.\n*/\nfunction insertCompletionText(state, text, from, to) {\n let { main } = state.selection, fromOff = from - main.from, toOff = to - main.from;\n return Object.assign(Object.assign({}, state.changeByRange(range => {\n if (range != main && from != to &&\n state.sliceDoc(range.from + fromOff, range.from + toOff) != state.sliceDoc(from, to))\n return { range };\n return {\n changes: { from: range.from + fromOff, to: to == main.from ? range.to : range.from + toOff, insert: text },\n range: EditorSelection.cursor(range.from + fromOff + text.length)\n };\n })), { scrollIntoView: true, userEvent: \"input.complete\" });\n}\nconst SourceCache = /*@__PURE__*/new WeakMap();\nfunction asSource(source) {\n if (!Array.isArray(source))\n return source;\n let known = SourceCache.get(source);\n if (!known)\n SourceCache.set(source, known = completeFromList(source));\n return known;\n}\nconst startCompletionEffect = /*@__PURE__*/StateEffect.define();\nconst closeCompletionEffect = /*@__PURE__*/StateEffect.define();\n\n// A pattern matcher for fuzzy completion matching. Create an instance\n// once for a pattern, and then use that to match any number of\n// completions.\nclass FuzzyMatcher {\n constructor(pattern) {\n this.pattern = pattern;\n this.chars = [];\n this.folded = [];\n // Buffers reused by calls to `match` to track matched character\n // positions.\n this.any = [];\n this.precise = [];\n this.byWord = [];\n this.score = 0;\n this.matched = [];\n for (let p = 0; p < pattern.length;) {\n let char = codePointAt(pattern, p), size = codePointSize(char);\n this.chars.push(char);\n let part = pattern.slice(p, p + size), upper = part.toUpperCase();\n this.folded.push(codePointAt(upper == part ? part.toLowerCase() : upper, 0));\n p += size;\n }\n this.astral = pattern.length != this.chars.length;\n }\n ret(score, matched) {\n this.score = score;\n this.matched = matched;\n return true;\n }\n // Matches a given word (completion) against the pattern (input).\n // Will return a boolean indicating whether there was a match and,\n // on success, set `this.score` to the score, `this.matched` to an\n // array of `from, to` pairs indicating the matched parts of `word`.\n //\n // The score is a number that is more negative the worse the match\n // is. See `Penalty` above.\n match(word) {\n if (this.pattern.length == 0)\n return this.ret(-100 /* Penalty.NotFull */, []);\n if (word.length < this.pattern.length)\n return false;\n let { chars, folded, any, precise, byWord } = this;\n // For single-character queries, only match when they occur right\n // at the start\n if (chars.length == 1) {\n let first = codePointAt(word, 0), firstSize = codePointSize(first);\n let score = firstSize == word.length ? 0 : -100 /* Penalty.NotFull */;\n if (first == chars[0]) ;\n else if (first == folded[0])\n score += -200 /* Penalty.CaseFold */;\n else\n return false;\n return this.ret(score, [0, firstSize]);\n }\n let direct = word.indexOf(this.pattern);\n if (direct == 0)\n return this.ret(word.length == this.pattern.length ? 0 : -100 /* Penalty.NotFull */, [0, this.pattern.length]);\n let len = chars.length, anyTo = 0;\n if (direct < 0) {\n for (let i = 0, e = Math.min(word.length, 200); i < e && anyTo < len;) {\n let next = codePointAt(word, i);\n if (next == chars[anyTo] || next == folded[anyTo])\n any[anyTo++] = i;\n i += codePointSize(next);\n }\n // No match, exit immediately\n if (anyTo < len)\n return false;\n }\n // This tracks the extent of the precise (non-folded, not\n // necessarily adjacent) match\n let preciseTo = 0;\n // Tracks whether there is a match that hits only characters that\n // appear to be starting words. `byWordFolded` is set to true when\n // a case folded character is encountered in such a match\n let byWordTo = 0, byWordFolded = false;\n // If we've found a partial adjacent match, these track its state\n let adjacentTo = 0, adjacentStart = -1, adjacentEnd = -1;\n let hasLower = /[a-z]/.test(word), wordAdjacent = true;\n // Go over the option's text, scanning for the various kinds of matches\n for (let i = 0, e = Math.min(word.length, 200), prevType = 0 /* Tp.NonWord */; i < e && byWordTo < len;) {\n let next = codePointAt(word, i);\n if (direct < 0) {\n if (preciseTo < len && next == chars[preciseTo])\n precise[preciseTo++] = i;\n if (adjacentTo < len) {\n if (next == chars[adjacentTo] || next == folded[adjacentTo]) {\n if (adjacentTo == 0)\n adjacentStart = i;\n adjacentEnd = i + 1;\n adjacentTo++;\n }\n else {\n adjacentTo = 0;\n }\n }\n }\n let ch, type = next < 0xff\n ? (next >= 48 && next <= 57 || next >= 97 && next <= 122 ? 2 /* Tp.Lower */ : next >= 65 && next <= 90 ? 1 /* Tp.Upper */ : 0 /* Tp.NonWord */)\n : ((ch = fromCodePoint(next)) != ch.toLowerCase() ? 1 /* Tp.Upper */ : ch != ch.toUpperCase() ? 2 /* Tp.Lower */ : 0 /* Tp.NonWord */);\n if (!i || type == 1 /* Tp.Upper */ && hasLower || prevType == 0 /* Tp.NonWord */ && type != 0 /* Tp.NonWord */) {\n if (chars[byWordTo] == next || (folded[byWordTo] == next && (byWordFolded = true)))\n byWord[byWordTo++] = i;\n else if (byWord.length)\n wordAdjacent = false;\n }\n prevType = type;\n i += codePointSize(next);\n }\n if (byWordTo == len && byWord[0] == 0 && wordAdjacent)\n return this.result(-100 /* Penalty.ByWord */ + (byWordFolded ? -200 /* Penalty.CaseFold */ : 0), byWord, word);\n if (adjacentTo == len && adjacentStart == 0)\n return this.ret(-200 /* Penalty.CaseFold */ - word.length + (adjacentEnd == word.length ? 0 : -100 /* Penalty.NotFull */), [0, adjacentEnd]);\n if (direct > -1)\n return this.ret(-700 /* Penalty.NotStart */ - word.length, [direct, direct + this.pattern.length]);\n if (adjacentTo == len)\n return this.ret(-200 /* Penalty.CaseFold */ + -700 /* Penalty.NotStart */ - word.length, [adjacentStart, adjacentEnd]);\n if (byWordTo == len)\n return this.result(-100 /* Penalty.ByWord */ + (byWordFolded ? -200 /* Penalty.CaseFold */ : 0) + -700 /* Penalty.NotStart */ +\n (wordAdjacent ? 0 : -1100 /* Penalty.Gap */), byWord, word);\n return chars.length == 2 ? false\n : this.result((any[0] ? -700 /* Penalty.NotStart */ : 0) + -200 /* Penalty.CaseFold */ + -1100 /* Penalty.Gap */, any, word);\n }\n result(score, positions, word) {\n let result = [], i = 0;\n for (let pos of positions) {\n let to = pos + (this.astral ? codePointSize(codePointAt(word, pos)) : 1);\n if (i && result[i - 1] == pos)\n result[i - 1] = to;\n else {\n result[i++] = pos;\n result[i++] = to;\n }\n }\n return this.ret(score - word.length, result);\n }\n}\n\nconst completionConfig = /*@__PURE__*/Facet.define({\n combine(configs) {\n return combineConfig(configs, {\n activateOnTyping: true,\n selectOnOpen: true,\n override: null,\n closeOnBlur: true,\n maxRenderedOptions: 100,\n defaultKeymap: true,\n tooltipClass: () => \"\",\n optionClass: () => \"\",\n aboveCursor: false,\n icons: true,\n addToOptions: [],\n positionInfo: defaultPositionInfo,\n compareCompletions: (a, b) => a.label.localeCompare(b.label),\n interactionDelay: 75,\n updateSyncTime: 100\n }, {\n defaultKeymap: (a, b) => a && b,\n closeOnBlur: (a, b) => a && b,\n icons: (a, b) => a && b,\n tooltipClass: (a, b) => c => joinClass(a(c), b(c)),\n optionClass: (a, b) => c => joinClass(a(c), b(c)),\n addToOptions: (a, b) => a.concat(b)\n });\n }\n});\nfunction joinClass(a, b) {\n return a ? b ? a + \" \" + b : a : b;\n}\nfunction defaultPositionInfo(view, list, option, info, space, tooltip) {\n let rtl = view.textDirection == Direction.RTL, left = rtl, narrow = false;\n let side = \"top\", offset, maxWidth;\n let spaceLeft = list.left - space.left, spaceRight = space.right - list.right;\n let infoWidth = info.right - info.left, infoHeight = info.bottom - info.top;\n if (left && spaceLeft < Math.min(infoWidth, spaceRight))\n left = false;\n else if (!left && spaceRight < Math.min(infoWidth, spaceLeft))\n left = true;\n if (infoWidth <= (left ? spaceLeft : spaceRight)) {\n offset = Math.max(space.top, Math.min(option.top, space.bottom - infoHeight)) - list.top;\n maxWidth = Math.min(400 /* Info.Width */, left ? spaceLeft : spaceRight);\n }\n else {\n narrow = true;\n maxWidth = Math.min(400 /* Info.Width */, (rtl ? list.right : space.right - list.left) - 30 /* Info.Margin */);\n let spaceBelow = space.bottom - list.bottom;\n if (spaceBelow >= infoHeight || spaceBelow > list.top) { // Below the completion\n offset = option.bottom - list.top;\n }\n else { // Above it\n side = \"bottom\";\n offset = list.bottom - option.top;\n }\n }\n let scaleY = (list.bottom - list.top) / tooltip.offsetHeight;\n let scaleX = (list.right - list.left) / tooltip.offsetWidth;\n return {\n style: `${side}: ${offset / scaleY}px; max-width: ${maxWidth / scaleX}px`,\n class: \"cm-completionInfo-\" + (narrow ? (rtl ? \"left-narrow\" : \"right-narrow\") : left ? \"left\" : \"right\")\n };\n}\n\nfunction optionContent(config) {\n let content = config.addToOptions.slice();\n if (config.icons)\n content.push({\n render(completion) {\n let icon = document.createElement(\"div\");\n icon.classList.add(\"cm-completionIcon\");\n if (completion.type)\n icon.classList.add(...completion.type.split(/\\s+/g).map(cls => \"cm-completionIcon-\" + cls));\n icon.setAttribute(\"aria-hidden\", \"true\");\n return icon;\n },\n position: 20\n });\n content.push({\n render(completion, _s, _v, match) {\n let labelElt = document.createElement(\"span\");\n labelElt.className = \"cm-completionLabel\";\n let label = completion.displayLabel || completion.label, off = 0;\n for (let j = 0; j < match.length;) {\n let from = match[j++], to = match[j++];\n if (from > off)\n labelElt.appendChild(document.createTextNode(label.slice(off, from)));\n let span = labelElt.appendChild(document.createElement(\"span\"));\n span.appendChild(document.createTextNode(label.slice(from, to)));\n span.className = \"cm-completionMatchedText\";\n off = to;\n }\n if (off < label.length)\n labelElt.appendChild(document.createTextNode(label.slice(off)));\n return labelElt;\n },\n position: 50\n }, {\n render(completion) {\n if (!completion.detail)\n return null;\n let detailElt = document.createElement(\"span\");\n detailElt.className = \"cm-completionDetail\";\n detailElt.textContent = completion.detail;\n return detailElt;\n },\n position: 80\n });\n return content.sort((a, b) => a.position - b.position).map(a => a.render);\n}\nfunction rangeAroundSelected(total, selected, max) {\n if (total <= max)\n return { from: 0, to: total };\n if (selected < 0)\n selected = 0;\n if (selected <= (total >> 1)) {\n let off = Math.floor(selected / max);\n return { from: off * max, to: (off + 1) * max };\n }\n let off = Math.floor((total - selected) / max);\n return { from: total - (off + 1) * max, to: total - off * max };\n}\nclass CompletionTooltip {\n constructor(view, stateField, applyCompletion) {\n this.view = view;\n this.stateField = stateField;\n this.applyCompletion = applyCompletion;\n this.info = null;\n this.infoDestroy = null;\n this.placeInfoReq = {\n read: () => this.measureInfo(),\n write: (pos) => this.placeInfo(pos),\n key: this\n };\n this.space = null;\n this.currentClass = \"\";\n let cState = view.state.field(stateField);\n let { options, selected } = cState.open;\n let config = view.state.facet(completionConfig);\n this.optionContent = optionContent(config);\n this.optionClass = config.optionClass;\n this.tooltipClass = config.tooltipClass;\n this.range = rangeAroundSelected(options.length, selected, config.maxRenderedOptions);\n this.dom = document.createElement(\"div\");\n this.dom.className = \"cm-tooltip-autocomplete\";\n this.updateTooltipClass(view.state);\n this.dom.addEventListener(\"mousedown\", (e) => {\n let { options } = view.state.field(stateField).open;\n for (let dom = e.target, match; dom && dom != this.dom; dom = dom.parentNode) {\n if (dom.nodeName == \"LI\" && (match = /-(\\d+)$/.exec(dom.id)) && +match[1] < options.length) {\n this.applyCompletion(view, options[+match[1]]);\n e.preventDefault();\n return;\n }\n }\n });\n this.dom.addEventListener(\"focusout\", (e) => {\n let state = view.state.field(this.stateField, false);\n if (state && state.tooltip && view.state.facet(completionConfig).closeOnBlur &&\n e.relatedTarget != view.contentDOM)\n view.dispatch({ effects: closeCompletionEffect.of(null) });\n });\n this.showOptions(options, cState.id);\n }\n mount() { this.updateSel(); }\n showOptions(options, id) {\n if (this.list)\n this.list.remove();\n this.list = this.dom.appendChild(this.createListBox(options, id, this.range));\n this.list.addEventListener(\"scroll\", () => {\n if (this.info)\n this.view.requestMeasure(this.placeInfoReq);\n });\n }\n update(update) {\n var _a;\n let cState = update.state.field(this.stateField);\n let prevState = update.startState.field(this.stateField);\n this.updateTooltipClass(update.state);\n if (cState != prevState) {\n let { options, selected, disabled } = cState.open;\n if (!prevState.open || prevState.open.options != options) {\n this.range = rangeAroundSelected(options.length, selected, update.state.facet(completionConfig).maxRenderedOptions);\n this.showOptions(options, cState.id);\n }\n this.updateSel();\n if (disabled != ((_a = prevState.open) === null || _a === void 0 ? void 0 : _a.disabled))\n this.dom.classList.toggle(\"cm-tooltip-autocomplete-disabled\", !!disabled);\n }\n }\n updateTooltipClass(state) {\n let cls = this.tooltipClass(state);\n if (cls != this.currentClass) {\n for (let c of this.currentClass.split(\" \"))\n if (c)\n this.dom.classList.remove(c);\n for (let c of cls.split(\" \"))\n if (c)\n this.dom.classList.add(c);\n this.currentClass = cls;\n }\n }\n positioned(space) {\n this.space = space;\n if (this.info)\n this.view.requestMeasure(this.placeInfoReq);\n }\n updateSel() {\n let cState = this.view.state.field(this.stateField), open = cState.open;\n if (open.selected > -1 && open.selected < this.range.from || open.selected >= this.range.to) {\n this.range = rangeAroundSelected(open.options.length, open.selected, this.view.state.facet(completionConfig).maxRenderedOptions);\n this.showOptions(open.options, cState.id);\n }\n if (this.updateSelectedOption(open.selected)) {\n this.destroyInfo();\n let { completion } = open.options[open.selected];\n let { info } = completion;\n if (!info)\n return;\n let infoResult = typeof info === \"string\" ? document.createTextNode(info) : info(completion);\n if (!infoResult)\n return;\n if (\"then\" in infoResult) {\n infoResult.then(obj => {\n if (obj && this.view.state.field(this.stateField, false) == cState)\n this.addInfoPane(obj, completion);\n }).catch(e => logException(this.view.state, e, \"completion info\"));\n }\n else {\n this.addInfoPane(infoResult, completion);\n }\n }\n }\n addInfoPane(content, completion) {\n this.destroyInfo();\n let wrap = this.info = document.createElement(\"div\");\n wrap.className = \"cm-tooltip cm-completionInfo\";\n if (content.nodeType != null) {\n wrap.appendChild(content);\n this.infoDestroy = null;\n }\n else {\n let { dom, destroy } = content;\n wrap.appendChild(dom);\n this.infoDestroy = destroy || null;\n }\n this.dom.appendChild(wrap);\n this.view.requestMeasure(this.placeInfoReq);\n }\n updateSelectedOption(selected) {\n let set = null;\n for (let opt = this.list.firstChild, i = this.range.from; opt; opt = opt.nextSibling, i++) {\n if (opt.nodeName != \"LI\" || !opt.id) {\n i--; // A section header\n }\n else if (i == selected) {\n if (!opt.hasAttribute(\"aria-selected\")) {\n opt.setAttribute(\"aria-selected\", \"true\");\n set = opt;\n }\n }\n else {\n if (opt.hasAttribute(\"aria-selected\"))\n opt.removeAttribute(\"aria-selected\");\n }\n }\n if (set)\n scrollIntoView(this.list, set);\n return set;\n }\n measureInfo() {\n let sel = this.dom.querySelector(\"[aria-selected]\");\n if (!sel || !this.info)\n return null;\n let listRect = this.dom.getBoundingClientRect();\n let infoRect = this.info.getBoundingClientRect();\n let selRect = sel.getBoundingClientRect();\n let space = this.space;\n if (!space) {\n let win = this.dom.ownerDocument.defaultView || window;\n space = { left: 0, top: 0, right: win.innerWidth, bottom: win.innerHeight };\n }\n if (selRect.top > Math.min(space.bottom, listRect.bottom) - 10 ||\n selRect.bottom < Math.max(space.top, listRect.top) + 10)\n return null;\n return this.view.state.facet(completionConfig).positionInfo(this.view, listRect, selRect, infoRect, space, this.dom);\n }\n placeInfo(pos) {\n if (this.info) {\n if (pos) {\n if (pos.style)\n this.info.style.cssText = pos.style;\n this.info.className = \"cm-tooltip cm-completionInfo \" + (pos.class || \"\");\n }\n else {\n this.info.style.cssText = \"top: -1e6px\";\n }\n }\n }\n createListBox(options, id, range) {\n const ul = document.createElement(\"ul\");\n ul.id = id;\n ul.setAttribute(\"role\", \"listbox\");\n ul.setAttribute(\"aria-expanded\", \"true\");\n ul.setAttribute(\"aria-label\", this.view.state.phrase(\"Completions\"));\n let curSection = null;\n for (let i = range.from; i < range.to; i++) {\n let { completion, match } = options[i], { section } = completion;\n if (section) {\n let name = typeof section == \"string\" ? section : section.name;\n if (name != curSection && (i > range.from || range.from == 0)) {\n curSection = name;\n if (typeof section != \"string\" && section.header) {\n ul.appendChild(section.header(section));\n }\n else {\n let header = ul.appendChild(document.createElement(\"completion-section\"));\n header.textContent = name;\n }\n }\n }\n const li = ul.appendChild(document.createElement(\"li\"));\n li.id = id + \"-\" + i;\n li.setAttribute(\"role\", \"option\");\n let cls = this.optionClass(completion);\n if (cls)\n li.className = cls;\n for (let source of this.optionContent) {\n let node = source(completion, this.view.state, this.view, match);\n if (node)\n li.appendChild(node);\n }\n }\n if (range.from)\n ul.classList.add(\"cm-completionListIncompleteTop\");\n if (range.to < options.length)\n ul.classList.add(\"cm-completionListIncompleteBottom\");\n return ul;\n }\n destroyInfo() {\n if (this.info) {\n if (this.infoDestroy)\n this.infoDestroy();\n this.info.remove();\n this.info = null;\n }\n }\n destroy() {\n this.destroyInfo();\n }\n}\nfunction completionTooltip(stateField, applyCompletion) {\n return (view) => new CompletionTooltip(view, stateField, applyCompletion);\n}\nfunction scrollIntoView(container, element) {\n let parent = container.getBoundingClientRect();\n let self = element.getBoundingClientRect();\n let scaleY = parent.height / container.offsetHeight;\n if (self.top < parent.top)\n container.scrollTop -= (parent.top - self.top) / scaleY;\n else if (self.bottom > parent.bottom)\n container.scrollTop += (self.bottom - parent.bottom) / scaleY;\n}\n\n// Used to pick a preferred option when two options with the same\n// label occur in the result.\nfunction score(option) {\n return (option.boost || 0) * 100 + (option.apply ? 10 : 0) + (option.info ? 5 : 0) +\n (option.type ? 1 : 0);\n}\nfunction sortOptions(active, state) {\n let options = [];\n let sections = null;\n let addOption = (option) => {\n options.push(option);\n let { section } = option.completion;\n if (section) {\n if (!sections)\n sections = [];\n let name = typeof section == \"string\" ? section : section.name;\n if (!sections.some(s => s.name == name))\n sections.push(typeof section == \"string\" ? { name } : section);\n }\n };\n for (let a of active)\n if (a.hasResult()) {\n let getMatch = a.result.getMatch;\n if (a.result.filter === false) {\n for (let option of a.result.options) {\n addOption(new Option(option, a.source, getMatch ? getMatch(option) : [], 1e9 - options.length));\n }\n }\n else {\n let matcher = new FuzzyMatcher(state.sliceDoc(a.from, a.to));\n for (let option of a.result.options)\n if (matcher.match(option.label)) {\n let matched = !option.displayLabel ? matcher.matched : getMatch ? getMatch(option, matcher.matched) : [];\n addOption(new Option(option, a.source, matched, matcher.score + (option.boost || 0)));\n }\n }\n }\n if (sections) {\n let sectionOrder = Object.create(null), pos = 0;\n let cmp = (a, b) => { var _a, _b; return ((_a = a.rank) !== null && _a !== void 0 ? _a : 1e9) - ((_b = b.rank) !== null && _b !== void 0 ? _b : 1e9) || (a.name < b.name ? -1 : 1); };\n for (let s of sections.sort(cmp)) {\n pos -= 1e5;\n sectionOrder[s.name] = pos;\n }\n for (let option of options) {\n let { section } = option.completion;\n if (section)\n option.score += sectionOrder[typeof section == \"string\" ? section : section.name];\n }\n }\n let result = [], prev = null;\n let compare = state.facet(completionConfig).compareCompletions;\n for (let opt of options.sort((a, b) => (b.score - a.score) || compare(a.completion, b.completion))) {\n let cur = opt.completion;\n if (!prev || prev.label != cur.label || prev.detail != cur.detail ||\n (prev.type != null && cur.type != null && prev.type != cur.type) ||\n prev.apply != cur.apply || prev.boost != cur.boost)\n result.push(opt);\n else if (score(opt.completion) > score(prev))\n result[result.length - 1] = opt;\n prev = opt.completion;\n }\n return result;\n}\nclass CompletionDialog {\n constructor(options, attrs, tooltip, timestamp, selected, disabled) {\n this.options = options;\n this.attrs = attrs;\n this.tooltip = tooltip;\n this.timestamp = timestamp;\n this.selected = selected;\n this.disabled = disabled;\n }\n setSelected(selected, id) {\n return selected == this.selected || selected >= this.options.length ? this\n : new CompletionDialog(this.options, makeAttrs(id, selected), this.tooltip, this.timestamp, selected, this.disabled);\n }\n static build(active, state, id, prev, conf) {\n let options = sortOptions(active, state);\n if (!options.length) {\n return prev && active.some(a => a.state == 1 /* State.Pending */) ?\n new CompletionDialog(prev.options, prev.attrs, prev.tooltip, prev.timestamp, prev.selected, true) : null;\n }\n let selected = state.facet(completionConfig).selectOnOpen ? 0 : -1;\n if (prev && prev.selected != selected && prev.selected != -1) {\n let selectedValue = prev.options[prev.selected].completion;\n for (let i = 0; i < options.length; i++)\n if (options[i].completion == selectedValue) {\n selected = i;\n break;\n }\n }\n return new CompletionDialog(options, makeAttrs(id, selected), {\n pos: active.reduce((a, b) => b.hasResult() ? Math.min(a, b.from) : a, 1e8),\n create: createTooltip,\n above: conf.aboveCursor,\n }, prev ? prev.timestamp : Date.now(), selected, false);\n }\n map(changes) {\n return new CompletionDialog(this.options, this.attrs, Object.assign(Object.assign({}, this.tooltip), { pos: changes.mapPos(this.tooltip.pos) }), this.timestamp, this.selected, this.disabled);\n }\n}\nclass CompletionState {\n constructor(active, id, open) {\n this.active = active;\n this.id = id;\n this.open = open;\n }\n static start() {\n return new CompletionState(none, \"cm-ac-\" + Math.floor(Math.random() * 2e6).toString(36), null);\n }\n update(tr) {\n let { state } = tr, conf = state.facet(completionConfig);\n let sources = conf.override ||\n state.languageDataAt(\"autocomplete\", cur(state)).map(asSource);\n let active = sources.map(source => {\n let value = this.active.find(s => s.source == source) ||\n new ActiveSource(source, this.active.some(a => a.state != 0 /* State.Inactive */) ? 1 /* State.Pending */ : 0 /* State.Inactive */);\n return value.update(tr, conf);\n });\n if (active.length == this.active.length && active.every((a, i) => a == this.active[i]))\n active = this.active;\n let open = this.open;\n if (open && tr.docChanged)\n open = open.map(tr.changes);\n if (tr.selection || active.some(a => a.hasResult() && tr.changes.touchesRange(a.from, a.to)) ||\n !sameResults(active, this.active))\n open = CompletionDialog.build(active, state, this.id, open, conf);\n else if (open && open.disabled && !active.some(a => a.state == 1 /* State.Pending */))\n open = null;\n if (!open && active.every(a => a.state != 1 /* State.Pending */) && active.some(a => a.hasResult()))\n active = active.map(a => a.hasResult() ? new ActiveSource(a.source, 0 /* State.Inactive */) : a);\n for (let effect of tr.effects)\n if (effect.is(setSelectedEffect))\n open = open && open.setSelected(effect.value, this.id);\n return active == this.active && open == this.open ? this : new CompletionState(active, this.id, open);\n }\n get tooltip() { return this.open ? this.open.tooltip : null; }\n get attrs() { return this.open ? this.open.attrs : baseAttrs; }\n}\nfunction sameResults(a, b) {\n if (a == b)\n return true;\n for (let iA = 0, iB = 0;;) {\n while (iA < a.length && !a[iA].hasResult)\n iA++;\n while (iB < b.length && !b[iB].hasResult)\n iB++;\n let endA = iA == a.length, endB = iB == b.length;\n if (endA || endB)\n return endA == endB;\n if (a[iA++].result != b[iB++].result)\n return false;\n }\n}\nconst baseAttrs = {\n \"aria-autocomplete\": \"list\"\n};\nfunction makeAttrs(id, selected) {\n let result = {\n \"aria-autocomplete\": \"list\",\n \"aria-haspopup\": \"listbox\",\n \"aria-controls\": id\n };\n if (selected > -1)\n result[\"aria-activedescendant\"] = id + \"-\" + selected;\n return result;\n}\nconst none = [];\nfunction getUserEvent(tr) {\n return tr.isUserEvent(\"input.type\") ? \"input\" : tr.isUserEvent(\"delete.backward\") ? \"delete\" : null;\n}\nclass ActiveSource {\n constructor(source, state, explicitPos = -1) {\n this.source = source;\n this.state = state;\n this.explicitPos = explicitPos;\n }\n hasResult() { return false; }\n update(tr, conf) {\n let event = getUserEvent(tr), value = this;\n if (event)\n value = value.handleUserEvent(tr, event, conf);\n else if (tr.docChanged)\n value = value.handleChange(tr);\n else if (tr.selection && value.state != 0 /* State.Inactive */)\n value = new ActiveSource(value.source, 0 /* State.Inactive */);\n for (let effect of tr.effects) {\n if (effect.is(startCompletionEffect))\n value = new ActiveSource(value.source, 1 /* State.Pending */, effect.value ? cur(tr.state) : -1);\n else if (effect.is(closeCompletionEffect))\n value = new ActiveSource(value.source, 0 /* State.Inactive */);\n else if (effect.is(setActiveEffect))\n for (let active of effect.value)\n if (active.source == value.source)\n value = active;\n }\n return value;\n }\n handleUserEvent(tr, type, conf) {\n return type == \"delete\" || !conf.activateOnTyping ? this.map(tr.changes) : new ActiveSource(this.source, 1 /* State.Pending */);\n }\n handleChange(tr) {\n return tr.changes.touchesRange(cur(tr.startState)) ? new ActiveSource(this.source, 0 /* State.Inactive */) : this.map(tr.changes);\n }\n map(changes) {\n return changes.empty || this.explicitPos < 0 ? this : new ActiveSource(this.source, this.state, changes.mapPos(this.explicitPos));\n }\n}\nclass ActiveResult extends ActiveSource {\n constructor(source, explicitPos, result, from, to) {\n super(source, 2 /* State.Result */, explicitPos);\n this.result = result;\n this.from = from;\n this.to = to;\n }\n hasResult() { return true; }\n handleUserEvent(tr, type, conf) {\n var _a;\n let from = tr.changes.mapPos(this.from), to = tr.changes.mapPos(this.to, 1);\n let pos = cur(tr.state);\n if ((this.explicitPos < 0 ? pos <= from : pos < this.from) ||\n pos > to ||\n type == \"delete\" && cur(tr.startState) == this.from)\n return new ActiveSource(this.source, type == \"input\" && conf.activateOnTyping ? 1 /* State.Pending */ : 0 /* State.Inactive */);\n let explicitPos = this.explicitPos < 0 ? -1 : tr.changes.mapPos(this.explicitPos), updated;\n if (checkValid(this.result.validFor, tr.state, from, to))\n return new ActiveResult(this.source, explicitPos, this.result, from, to);\n if (this.result.update &&\n (updated = this.result.update(this.result, from, to, new CompletionContext(tr.state, pos, explicitPos >= 0))))\n return new ActiveResult(this.source, explicitPos, updated, updated.from, (_a = updated.to) !== null && _a !== void 0 ? _a : cur(tr.state));\n return new ActiveSource(this.source, 1 /* State.Pending */, explicitPos);\n }\n handleChange(tr) {\n return tr.changes.touchesRange(this.from, this.to) ? new ActiveSource(this.source, 0 /* State.Inactive */) : this.map(tr.changes);\n }\n map(mapping) {\n return mapping.empty ? this :\n new ActiveResult(this.source, this.explicitPos < 0 ? -1 : mapping.mapPos(this.explicitPos), this.result, mapping.mapPos(this.from), mapping.mapPos(this.to, 1));\n }\n}\nfunction checkValid(validFor, state, from, to) {\n if (!validFor)\n return false;\n let text = state.sliceDoc(from, to);\n return typeof validFor == \"function\" ? validFor(text, from, to, state) : ensureAnchor(validFor, true).test(text);\n}\nconst setActiveEffect = /*@__PURE__*/StateEffect.define({\n map(sources, mapping) { return sources.map(s => s.map(mapping)); }\n});\nconst setSelectedEffect = /*@__PURE__*/StateEffect.define();\nconst completionState = /*@__PURE__*/StateField.define({\n create() { return CompletionState.start(); },\n update(value, tr) { return value.update(tr); },\n provide: f => [\n showTooltip.from(f, val => val.tooltip),\n EditorView.contentAttributes.from(f, state => state.attrs)\n ]\n});\nfunction applyCompletion(view, option) {\n const apply = option.completion.apply || option.completion.label;\n let result = view.state.field(completionState).active.find(a => a.source == option.source);\n if (!(result instanceof ActiveResult))\n return false;\n if (typeof apply == \"string\")\n view.dispatch(Object.assign(Object.assign({}, insertCompletionText(view.state, apply, result.from, result.to)), { annotations: pickedCompletion.of(option.completion) }));\n else\n apply(view, option.completion, result.from, result.to);\n return true;\n}\nconst createTooltip = /*@__PURE__*/completionTooltip(completionState, applyCompletion);\n\n/**\nReturns a command that moves the completion selection forward or\nbackward by the given amount.\n*/\nfunction moveCompletionSelection(forward, by = \"option\") {\n return (view) => {\n let cState = view.state.field(completionState, false);\n if (!cState || !cState.open || cState.open.disabled ||\n Date.now() - cState.open.timestamp < view.state.facet(completionConfig).interactionDelay)\n return false;\n let step = 1, tooltip;\n if (by == \"page\" && (tooltip = getTooltip(view, cState.open.tooltip)))\n step = Math.max(2, Math.floor(tooltip.dom.offsetHeight /\n tooltip.dom.querySelector(\"li\").offsetHeight) - 1);\n let { length } = cState.open.options;\n let selected = cState.open.selected > -1 ? cState.open.selected + step * (forward ? 1 : -1) : forward ? 0 : length - 1;\n if (selected < 0)\n selected = by == \"page\" ? 0 : length - 1;\n else if (selected >= length)\n selected = by == \"page\" ? length - 1 : 0;\n view.dispatch({ effects: setSelectedEffect.of(selected) });\n return true;\n };\n}\n/**\nAccept the current completion.\n*/\nconst acceptCompletion = (view) => {\n let cState = view.state.field(completionState, false);\n if (view.state.readOnly || !cState || !cState.open || cState.open.selected < 0 || cState.open.disabled ||\n Date.now() - cState.open.timestamp < view.state.facet(completionConfig).interactionDelay)\n return false;\n return applyCompletion(view, cState.open.options[cState.open.selected]);\n};\n/**\nExplicitly start autocompletion.\n*/\nconst startCompletion = (view) => {\n let cState = view.state.field(completionState, false);\n if (!cState)\n return false;\n view.dispatch({ effects: startCompletionEffect.of(true) });\n return true;\n};\n/**\nClose the currently active completion.\n*/\nconst closeCompletion = (view) => {\n let cState = view.state.field(completionState, false);\n if (!cState || !cState.active.some(a => a.state != 0 /* State.Inactive */))\n return false;\n view.dispatch({ effects: closeCompletionEffect.of(null) });\n return true;\n};\nclass RunningQuery {\n constructor(active, context) {\n this.active = active;\n this.context = context;\n this.time = Date.now();\n this.updates = [];\n // Note that 'undefined' means 'not done yet', whereas 'null' means\n // 'query returned null'.\n this.done = undefined;\n }\n}\nconst MaxUpdateCount = 50, MinAbortTime = 1000;\nconst completionPlugin = /*@__PURE__*/ViewPlugin.fromClass(class {\n constructor(view) {\n this.view = view;\n this.debounceUpdate = -1;\n this.running = [];\n this.debounceAccept = -1;\n this.composing = 0 /* CompositionState.None */;\n for (let active of view.state.field(completionState).active)\n if (active.state == 1 /* State.Pending */)\n this.startQuery(active);\n }\n update(update) {\n let cState = update.state.field(completionState);\n if (!update.selectionSet && !update.docChanged && update.startState.field(completionState) == cState)\n return;\n let doesReset = update.transactions.some(tr => {\n return (tr.selection || tr.docChanged) && !getUserEvent(tr);\n });\n for (let i = 0; i < this.running.length; i++) {\n let query = this.running[i];\n if (doesReset ||\n query.updates.length + update.transactions.length > MaxUpdateCount && Date.now() - query.time > MinAbortTime) {\n for (let handler of query.context.abortListeners) {\n try {\n handler();\n }\n catch (e) {\n logException(this.view.state, e);\n }\n }\n query.context.abortListeners = null;\n this.running.splice(i--, 1);\n }\n else {\n query.updates.push(...update.transactions);\n }\n }\n if (this.debounceUpdate > -1)\n clearTimeout(this.debounceUpdate);\n this.debounceUpdate = cState.active.some(a => a.state == 1 /* State.Pending */ && !this.running.some(q => q.active.source == a.source))\n ? setTimeout(() => this.startUpdate(), 50) : -1;\n if (this.composing != 0 /* CompositionState.None */)\n for (let tr of update.transactions) {\n if (getUserEvent(tr) == \"input\")\n this.composing = 2 /* CompositionState.Changed */;\n else if (this.composing == 2 /* CompositionState.Changed */ && tr.selection)\n this.composing = 3 /* CompositionState.ChangedAndMoved */;\n }\n }\n startUpdate() {\n this.debounceUpdate = -1;\n let { state } = this.view, cState = state.field(completionState);\n for (let active of cState.active) {\n if (active.state == 1 /* State.Pending */ && !this.running.some(r => r.active.source == active.source))\n this.startQuery(active);\n }\n }\n startQuery(active) {\n let { state } = this.view, pos = cur(state);\n let context = new CompletionContext(state, pos, active.explicitPos == pos);\n let pending = new RunningQuery(active, context);\n this.running.push(pending);\n Promise.resolve(active.source(context)).then(result => {\n if (!pending.context.aborted) {\n pending.done = result || null;\n this.scheduleAccept();\n }\n }, err => {\n this.view.dispatch({ effects: closeCompletionEffect.of(null) });\n logException(this.view.state, err);\n });\n }\n scheduleAccept() {\n if (this.running.every(q => q.done !== undefined))\n this.accept();\n else if (this.debounceAccept < 0)\n this.debounceAccept = setTimeout(() => this.accept(), this.view.state.facet(completionConfig).updateSyncTime);\n }\n // For each finished query in this.running, try to create a result\n // or, if appropriate, restart the query.\n accept() {\n var _a;\n if (this.debounceAccept > -1)\n clearTimeout(this.debounceAccept);\n this.debounceAccept = -1;\n let updated = [];\n let conf = this.view.state.facet(completionConfig);\n for (let i = 0; i < this.running.length; i++) {\n let query = this.running[i];\n if (query.done === undefined)\n continue;\n this.running.splice(i--, 1);\n if (query.done) {\n let active = new ActiveResult(query.active.source, query.active.explicitPos, query.done, query.done.from, (_a = query.done.to) !== null && _a !== void 0 ? _a : cur(query.updates.length ? query.updates[0].startState : this.view.state));\n // Replay the transactions that happened since the start of\n // the request and see if that preserves the result\n for (let tr of query.updates)\n active = active.update(tr, conf);\n if (active.hasResult()) {\n updated.push(active);\n continue;\n }\n }\n let current = this.view.state.field(completionState).active.find(a => a.source == query.active.source);\n if (current && current.state == 1 /* State.Pending */) {\n if (query.done == null) {\n // Explicitly failed. Should clear the pending status if it\n // hasn't been re-set in the meantime.\n let active = new ActiveSource(query.active.source, 0 /* State.Inactive */);\n for (let tr of query.updates)\n active = active.update(tr, conf);\n if (active.state != 1 /* State.Pending */)\n updated.push(active);\n }\n else {\n // Cleared by subsequent transactions. Restart.\n this.startQuery(current);\n }\n }\n }\n if (updated.length)\n this.view.dispatch({ effects: setActiveEffect.of(updated) });\n }\n}, {\n eventHandlers: {\n blur(event) {\n let state = this.view.state.field(completionState, false);\n if (state && state.tooltip && this.view.state.facet(completionConfig).closeOnBlur) {\n let dialog = state.open && getTooltip(this.view, state.open.tooltip);\n if (!dialog || !dialog.dom.contains(event.relatedTarget))\n this.view.dispatch({ effects: closeCompletionEffect.of(null) });\n }\n },\n compositionstart() {\n this.composing = 1 /* CompositionState.Started */;\n },\n compositionend() {\n if (this.composing == 3 /* CompositionState.ChangedAndMoved */) {\n // Safari fires compositionend events synchronously, possibly\n // from inside an update, so dispatch asynchronously to avoid reentrancy\n setTimeout(() => this.view.dispatch({ effects: startCompletionEffect.of(false) }), 20);\n }\n this.composing = 0 /* CompositionState.None */;\n }\n }\n});\n\nconst baseTheme = /*@__PURE__*/EditorView.baseTheme({\n \".cm-tooltip.cm-tooltip-autocomplete\": {\n \"& > ul\": {\n fontFamily: \"monospace\",\n whiteSpace: \"nowrap\",\n overflow: \"hidden auto\",\n maxWidth_fallback: \"700px\",\n maxWidth: \"min(700px, 95vw)\",\n minWidth: \"250px\",\n maxHeight: \"10em\",\n height: \"100%\",\n listStyle: \"none\",\n margin: 0,\n padding: 0,\n \"& > li, & > completion-section\": {\n padding: \"1px 3px\",\n lineHeight: 1.2\n },\n \"& > li\": {\n overflowX: \"hidden\",\n textOverflow: \"ellipsis\",\n cursor: \"pointer\"\n },\n \"& > completion-section\": {\n display: \"list-item\",\n borderBottom: \"1px solid silver\",\n paddingLeft: \"0.5em\",\n opacity: 0.7\n }\n }\n },\n \"&light .cm-tooltip-autocomplete ul li[aria-selected]\": {\n background: \"#17c\",\n color: \"white\",\n },\n \"&light .cm-tooltip-autocomplete-disabled ul li[aria-selected]\": {\n background: \"#777\",\n },\n \"&dark .cm-tooltip-autocomplete ul li[aria-selected]\": {\n background: \"#347\",\n color: \"white\",\n },\n \"&dark .cm-tooltip-autocomplete-disabled ul li[aria-selected]\": {\n background: \"#444\",\n },\n \".cm-completionListIncompleteTop:before, .cm-completionListIncompleteBottom:after\": {\n content: '\"···\"',\n opacity: 0.5,\n display: \"block\",\n textAlign: \"center\"\n },\n \".cm-tooltip.cm-completionInfo\": {\n position: \"absolute\",\n padding: \"3px 9px\",\n width: \"max-content\",\n maxWidth: `${400 /* Info.Width */}px`,\n boxSizing: \"border-box\"\n },\n \".cm-completionInfo.cm-completionInfo-left\": { right: \"100%\" },\n \".cm-completionInfo.cm-completionInfo-right\": { left: \"100%\" },\n \".cm-completionInfo.cm-completionInfo-left-narrow\": { right: `${30 /* Info.Margin */}px` },\n \".cm-completionInfo.cm-completionInfo-right-narrow\": { left: `${30 /* Info.Margin */}px` },\n \"&light .cm-snippetField\": { backgroundColor: \"#00000022\" },\n \"&dark .cm-snippetField\": { backgroundColor: \"#ffffff22\" },\n \".cm-snippetFieldPosition\": {\n verticalAlign: \"text-top\",\n width: 0,\n height: \"1.15em\",\n display: \"inline-block\",\n margin: \"0 -0.7px -.7em\",\n borderLeft: \"1.4px dotted #888\"\n },\n \".cm-completionMatchedText\": {\n textDecoration: \"underline\"\n },\n \".cm-completionDetail\": {\n marginLeft: \"0.5em\",\n fontStyle: \"italic\"\n },\n \".cm-completionIcon\": {\n fontSize: \"90%\",\n width: \".8em\",\n display: \"inline-block\",\n textAlign: \"center\",\n paddingRight: \".6em\",\n opacity: \"0.6\",\n boxSizing: \"content-box\"\n },\n \".cm-completionIcon-function, .cm-completionIcon-method\": {\n \"&:after\": { content: \"'ƒ'\" }\n },\n \".cm-completionIcon-class\": {\n \"&:after\": { content: \"'○'\" }\n },\n \".cm-completionIcon-interface\": {\n \"&:after\": { content: \"'◌'\" }\n },\n \".cm-completionIcon-variable\": {\n \"&:after\": { content: \"'𝑥'\" }\n },\n \".cm-completionIcon-constant\": {\n \"&:after\": { content: \"'𝐶'\" }\n },\n \".cm-completionIcon-type\": {\n \"&:after\": { content: \"'𝑡'\" }\n },\n \".cm-completionIcon-enum\": {\n \"&:after\": { content: \"'∪'\" }\n },\n \".cm-completionIcon-property\": {\n \"&:after\": { content: \"'□'\" }\n },\n \".cm-completionIcon-keyword\": {\n \"&:after\": { content: \"'🔑\\uFE0E'\" } // Disable emoji rendering\n },\n \".cm-completionIcon-namespace\": {\n \"&:after\": { content: \"'▢'\" }\n },\n \".cm-completionIcon-text\": {\n \"&:after\": { content: \"'abc'\", fontSize: \"50%\", verticalAlign: \"middle\" }\n }\n});\n\nclass FieldPos {\n constructor(field, line, from, to) {\n this.field = field;\n this.line = line;\n this.from = from;\n this.to = to;\n }\n}\nclass FieldRange {\n constructor(field, from, to) {\n this.field = field;\n this.from = from;\n this.to = to;\n }\n map(changes) {\n let from = changes.mapPos(this.from, -1, MapMode.TrackDel);\n let to = changes.mapPos(this.to, 1, MapMode.TrackDel);\n return from == null || to == null ? null : new FieldRange(this.field, from, to);\n }\n}\nclass Snippet {\n constructor(lines, fieldPositions) {\n this.lines = lines;\n this.fieldPositions = fieldPositions;\n }\n instantiate(state, pos) {\n let text = [], lineStart = [pos];\n let lineObj = state.doc.lineAt(pos), baseIndent = /^\\s*/.exec(lineObj.text)[0];\n for (let line of this.lines) {\n if (text.length) {\n let indent = baseIndent, tabs = /^\\t*/.exec(line)[0].length;\n for (let i = 0; i < tabs; i++)\n indent += state.facet(indentUnit);\n lineStart.push(pos + indent.length - tabs);\n line = indent + line.slice(tabs);\n }\n text.push(line);\n pos += line.length + 1;\n }\n let ranges = this.fieldPositions.map(pos => new FieldRange(pos.field, lineStart[pos.line] + pos.from, lineStart[pos.line] + pos.to));\n return { text, ranges };\n }\n static parse(template) {\n let fields = [];\n let lines = [], positions = [], m;\n for (let line of template.split(/\\r\\n?|\\n/)) {\n while (m = /[#$]\\{(?:(\\d+)(?::([^}]*))?|([^}]*))\\}/.exec(line)) {\n let seq = m[1] ? +m[1] : null, name = m[2] || m[3] || \"\", found = -1;\n for (let i = 0; i < fields.length; i++) {\n if (seq != null ? fields[i].seq == seq : name ? fields[i].name == name : false)\n found = i;\n }\n if (found < 0) {\n let i = 0;\n while (i < fields.length && (seq == null || (fields[i].seq != null && fields[i].seq < seq)))\n i++;\n fields.splice(i, 0, { seq, name });\n found = i;\n for (let pos of positions)\n if (pos.field >= found)\n pos.field++;\n }\n positions.push(new FieldPos(found, lines.length, m.index, m.index + name.length));\n line = line.slice(0, m.index) + name + line.slice(m.index + m[0].length);\n }\n for (let esc; esc = /\\\\([{}])/.exec(line);) {\n line = line.slice(0, esc.index) + esc[1] + line.slice(esc.index + esc[0].length);\n for (let pos of positions)\n if (pos.line == lines.length && pos.from > esc.index) {\n pos.from--;\n pos.to--;\n }\n }\n lines.push(line);\n }\n return new Snippet(lines, positions);\n }\n}\nlet fieldMarker = /*@__PURE__*/Decoration.widget({ widget: /*@__PURE__*/new class extends WidgetType {\n toDOM() {\n let span = document.createElement(\"span\");\n span.className = \"cm-snippetFieldPosition\";\n return span;\n }\n ignoreEvent() { return false; }\n } });\nlet fieldRange = /*@__PURE__*/Decoration.mark({ class: \"cm-snippetField\" });\nclass ActiveSnippet {\n constructor(ranges, active) {\n this.ranges = ranges;\n this.active = active;\n this.deco = Decoration.set(ranges.map(r => (r.from == r.to ? fieldMarker : fieldRange).range(r.from, r.to)));\n }\n map(changes) {\n let ranges = [];\n for (let r of this.ranges) {\n let mapped = r.map(changes);\n if (!mapped)\n return null;\n ranges.push(mapped);\n }\n return new ActiveSnippet(ranges, this.active);\n }\n selectionInsideField(sel) {\n return sel.ranges.every(range => this.ranges.some(r => r.field == this.active && r.from <= range.from && r.to >= range.to));\n }\n}\nconst setActive = /*@__PURE__*/StateEffect.define({\n map(value, changes) { return value && value.map(changes); }\n});\nconst moveToField = /*@__PURE__*/StateEffect.define();\nconst snippetState = /*@__PURE__*/StateField.define({\n create() { return null; },\n update(value, tr) {\n for (let effect of tr.effects) {\n if (effect.is(setActive))\n return effect.value;\n if (effect.is(moveToField) && value)\n return new ActiveSnippet(value.ranges, effect.value);\n }\n if (value && tr.docChanged)\n value = value.map(tr.changes);\n if (value && tr.selection && !value.selectionInsideField(tr.selection))\n value = null;\n return value;\n },\n provide: f => EditorView.decorations.from(f, val => val ? val.deco : Decoration.none)\n});\nfunction fieldSelection(ranges, field) {\n return EditorSelection.create(ranges.filter(r => r.field == field).map(r => EditorSelection.range(r.from, r.to)));\n}\n/**\nConvert a snippet template to a function that can\n[apply](https://codemirror.net/6/docs/ref/#autocomplete.Completion.apply) it. Snippets are written\nusing syntax like this:\n\n \"for (let ${index} = 0; ${index} < ${end}; ${index}++) {\\n\\t${}\\n}\"\n\nEach `${}` placeholder (you may also use `#{}`) indicates a field\nthat the user can fill in. Its name, if any, will be the default\ncontent for the field.\n\nWhen the snippet is activated by calling the returned function,\nthe code is inserted at the given position. Newlines in the\ntemplate are indented by the indentation of the start line, plus\none [indent unit](https://codemirror.net/6/docs/ref/#language.indentUnit) per tab character after\nthe newline.\n\nOn activation, (all instances of) the first field are selected.\nThe user can move between fields with Tab and Shift-Tab as long as\nthe fields are active. Moving to the last field or moving the\ncursor out of the current field deactivates the fields.\n\nThe order of fields defaults to textual order, but you can add\nnumbers to placeholders (`${1}` or `${1:defaultText}`) to provide\na custom order.\n\nTo include a literal `{` or `}` in your template, put a backslash\nin front of it. This will be removed and the brace will not be\ninterpreted as indicating a placeholder.\n*/\nfunction snippet(template) {\n let snippet = Snippet.parse(template);\n return (editor, completion, from, to) => {\n let { text, ranges } = snippet.instantiate(editor.state, from);\n let spec = {\n changes: { from, to, insert: Text.of(text) },\n scrollIntoView: true,\n annotations: completion ? pickedCompletion.of(completion) : undefined\n };\n if (ranges.length)\n spec.selection = fieldSelection(ranges, 0);\n if (ranges.length > 1) {\n let active = new ActiveSnippet(ranges, 0);\n let effects = spec.effects = [setActive.of(active)];\n if (editor.state.field(snippetState, false) === undefined)\n effects.push(StateEffect.appendConfig.of([snippetState, addSnippetKeymap, snippetPointerHandler, baseTheme]));\n }\n editor.dispatch(editor.state.update(spec));\n };\n}\nfunction moveField(dir) {\n return ({ state, dispatch }) => {\n let active = state.field(snippetState, false);\n if (!active || dir < 0 && active.active == 0)\n return false;\n let next = active.active + dir, last = dir > 0 && !active.ranges.some(r => r.field == next + dir);\n dispatch(state.update({\n selection: fieldSelection(active.ranges, next),\n effects: setActive.of(last ? null : new ActiveSnippet(active.ranges, next)),\n scrollIntoView: true\n }));\n return true;\n };\n}\n/**\nA command that clears the active snippet, if any.\n*/\nconst clearSnippet = ({ state, dispatch }) => {\n let active = state.field(snippetState, false);\n if (!active)\n return false;\n dispatch(state.update({ effects: setActive.of(null) }));\n return true;\n};\n/**\nMove to the next snippet field, if available.\n*/\nconst nextSnippetField = /*@__PURE__*/moveField(1);\n/**\nMove to the previous snippet field, if available.\n*/\nconst prevSnippetField = /*@__PURE__*/moveField(-1);\n/**\nCheck if there is an active snippet with a next field for\n`nextSnippetField` to move to.\n*/\nfunction hasNextSnippetField(state) {\n let active = state.field(snippetState, false);\n return !!(active && active.ranges.some(r => r.field == active.active + 1));\n}\n/**\nReturns true if there is an active snippet and a previous field\nfor `prevSnippetField` to move to.\n*/\nfunction hasPrevSnippetField(state) {\n let active = state.field(snippetState, false);\n return !!(active && active.active > 0);\n}\nconst defaultSnippetKeymap = [\n { key: \"Tab\", run: nextSnippetField, shift: prevSnippetField },\n { key: \"Escape\", run: clearSnippet }\n];\n/**\nA facet that can be used to configure the key bindings used by\nsnippets. The default binds Tab to\n[`nextSnippetField`](https://codemirror.net/6/docs/ref/#autocomplete.nextSnippetField), Shift-Tab to\n[`prevSnippetField`](https://codemirror.net/6/docs/ref/#autocomplete.prevSnippetField), and Escape\nto [`clearSnippet`](https://codemirror.net/6/docs/ref/#autocomplete.clearSnippet).\n*/\nconst snippetKeymap = /*@__PURE__*/Facet.define({\n combine(maps) { return maps.length ? maps[0] : defaultSnippetKeymap; }\n});\nconst addSnippetKeymap = /*@__PURE__*/Prec.highest(/*@__PURE__*/keymap.compute([snippetKeymap], state => state.facet(snippetKeymap)));\n/**\nCreate a completion from a snippet. Returns an object with the\nproperties from `completion`, plus an `apply` function that\napplies the snippet.\n*/\nfunction snippetCompletion(template, completion) {\n return Object.assign(Object.assign({}, completion), { apply: snippet(template) });\n}\nconst snippetPointerHandler = /*@__PURE__*/EditorView.domEventHandlers({\n mousedown(event, view) {\n let active = view.state.field(snippetState, false), pos;\n if (!active || (pos = view.posAtCoords({ x: event.clientX, y: event.clientY })) == null)\n return false;\n let match = active.ranges.find(r => r.from <= pos && r.to >= pos);\n if (!match || match.field == active.active)\n return false;\n view.dispatch({\n selection: fieldSelection(active.ranges, match.field),\n effects: setActive.of(active.ranges.some(r => r.field > match.field)\n ? new ActiveSnippet(active.ranges, match.field) : null),\n scrollIntoView: true\n });\n return true;\n }\n});\n\nfunction wordRE(wordChars) {\n let escaped = wordChars.replace(/[\\]\\-\\\\]/g, \"\\\\$&\");\n try {\n return new RegExp(`[\\\\p{Alphabetic}\\\\p{Number}_${escaped}]+`, \"ug\");\n }\n catch (_a) {\n return new RegExp(`[\\w${escaped}]`, \"g\");\n }\n}\nfunction mapRE(re, f) {\n return new RegExp(f(re.source), re.unicode ? \"u\" : \"\");\n}\nconst wordCaches = /*@__PURE__*/Object.create(null);\nfunction wordCache(wordChars) {\n return wordCaches[wordChars] || (wordCaches[wordChars] = new WeakMap);\n}\nfunction storeWords(doc, wordRE, result, seen, ignoreAt) {\n for (let lines = doc.iterLines(), pos = 0; !lines.next().done;) {\n let { value } = lines, m;\n wordRE.lastIndex = 0;\n while (m = wordRE.exec(value)) {\n if (!seen[m[0]] && pos + m.index != ignoreAt) {\n result.push({ type: \"text\", label: m[0] });\n seen[m[0]] = true;\n if (result.length >= 2000 /* C.MaxList */)\n return;\n }\n }\n pos += value.length + 1;\n }\n}\nfunction collectWords(doc, cache, wordRE, to, ignoreAt) {\n let big = doc.length >= 1000 /* C.MinCacheLen */;\n let cached = big && cache.get(doc);\n if (cached)\n return cached;\n let result = [], seen = Object.create(null);\n if (doc.children) {\n let pos = 0;\n for (let ch of doc.children) {\n if (ch.length >= 1000 /* C.MinCacheLen */) {\n for (let c of collectWords(ch, cache, wordRE, to - pos, ignoreAt - pos)) {\n if (!seen[c.label]) {\n seen[c.label] = true;\n result.push(c);\n }\n }\n }\n else {\n storeWords(ch, wordRE, result, seen, ignoreAt - pos);\n }\n pos += ch.length + 1;\n }\n }\n else {\n storeWords(doc, wordRE, result, seen, ignoreAt);\n }\n if (big && result.length < 2000 /* C.MaxList */)\n cache.set(doc, result);\n return result;\n}\n/**\nA completion source that will scan the document for words (using a\n[character categorizer](https://codemirror.net/6/docs/ref/#state.EditorState.charCategorizer)), and\nreturn those as completions.\n*/\nconst completeAnyWord = context => {\n let wordChars = context.state.languageDataAt(\"wordChars\", context.pos).join(\"\");\n let re = wordRE(wordChars);\n let token = context.matchBefore(mapRE(re, s => s + \"$\"));\n if (!token && !context.explicit)\n return null;\n let from = token ? token.from : context.pos;\n let options = collectWords(context.state.doc, wordCache(wordChars), re, 50000 /* C.Range */, from);\n return { from, options, validFor: mapRE(re, s => \"^\" + s) };\n};\n\nconst defaults = {\n brackets: [\"(\", \"[\", \"{\", \"'\", '\"'],\n before: \")]}:;>\",\n stringPrefixes: []\n};\nconst closeBracketEffect = /*@__PURE__*/StateEffect.define({\n map(value, mapping) {\n let mapped = mapping.mapPos(value, -1, MapMode.TrackAfter);\n return mapped == null ? undefined : mapped;\n }\n});\nconst closedBracket = /*@__PURE__*/new class extends RangeValue {\n};\nclosedBracket.startSide = 1;\nclosedBracket.endSide = -1;\nconst bracketState = /*@__PURE__*/StateField.define({\n create() { return RangeSet.empty; },\n update(value, tr) {\n if (tr.selection) {\n let line = tr.state.doc.lineAt(tr.selection.main.head);\n value = value.update({ filter: from => from >= line.from && from <= line.to });\n }\n value = value.map(tr.changes);\n for (let effect of tr.effects)\n if (effect.is(closeBracketEffect))\n value = value.update({ add: [closedBracket.range(effect.value, effect.value + 1)] });\n return value;\n }\n});\n/**\nExtension to enable bracket-closing behavior. When a closeable\nbracket is typed, its closing bracket is immediately inserted\nafter the cursor. When closing a bracket directly in front of a\nclosing bracket inserted by the extension, the cursor moves over\nthat bracket.\n*/\nfunction closeBrackets() {\n return [inputHandler, bracketState];\n}\nconst definedClosing = \"()[]{}<>\";\nfunction closing(ch) {\n for (let i = 0; i < definedClosing.length; i += 2)\n if (definedClosing.charCodeAt(i) == ch)\n return definedClosing.charAt(i + 1);\n return fromCodePoint(ch < 128 ? ch : ch + 1);\n}\nfunction config(state, pos) {\n return state.languageDataAt(\"closeBrackets\", pos)[0] || defaults;\n}\nconst android = typeof navigator == \"object\" && /*@__PURE__*//Android\\b/.test(navigator.userAgent);\nconst inputHandler = /*@__PURE__*/EditorView.inputHandler.of((view, from, to, insert) => {\n if ((android ? view.composing : view.compositionStarted) || view.state.readOnly)\n return false;\n let sel = view.state.selection.main;\n if (insert.length > 2 || insert.length == 2 && codePointSize(codePointAt(insert, 0)) == 1 ||\n from != sel.from || to != sel.to)\n return false;\n let tr = insertBracket(view.state, insert);\n if (!tr)\n return false;\n view.dispatch(tr);\n return true;\n});\n/**\nCommand that implements deleting a pair of matching brackets when\nthe cursor is between them.\n*/\nconst deleteBracketPair = ({ state, dispatch }) => {\n if (state.readOnly)\n return false;\n let conf = config(state, state.selection.main.head);\n let tokens = conf.brackets || defaults.brackets;\n let dont = null, changes = state.changeByRange(range => {\n if (range.empty) {\n let before = prevChar(state.doc, range.head);\n for (let token of tokens) {\n if (token == before && nextChar(state.doc, range.head) == closing(codePointAt(token, 0)))\n return { changes: { from: range.head - token.length, to: range.head + token.length },\n range: EditorSelection.cursor(range.head - token.length) };\n }\n }\n return { range: dont = range };\n });\n if (!dont)\n dispatch(state.update(changes, { scrollIntoView: true, userEvent: \"delete.backward\" }));\n return !dont;\n};\n/**\nClose-brackets related key bindings. Binds Backspace to\n[`deleteBracketPair`](https://codemirror.net/6/docs/ref/#autocomplete.deleteBracketPair).\n*/\nconst closeBracketsKeymap = [\n { key: \"Backspace\", run: deleteBracketPair }\n];\n/**\nImplements the extension's behavior on text insertion. If the\ngiven string counts as a bracket in the language around the\nselection, and replacing the selection with it requires custom\nbehavior (inserting a closing version or skipping past a\npreviously-closed bracket), this function returns a transaction\nrepresenting that custom behavior. (You only need this if you want\nto programmatically insert brackets—the\n[`closeBrackets`](https://codemirror.net/6/docs/ref/#autocomplete.closeBrackets) extension will\ntake care of running this for user input.)\n*/\nfunction insertBracket(state, bracket) {\n let conf = config(state, state.selection.main.head);\n let tokens = conf.brackets || defaults.brackets;\n for (let tok of tokens) {\n let closed = closing(codePointAt(tok, 0));\n if (bracket == tok)\n return closed == tok ? handleSame(state, tok, tokens.indexOf(tok + tok + tok) > -1, conf)\n : handleOpen(state, tok, closed, conf.before || defaults.before);\n if (bracket == closed && closedBracketAt(state, state.selection.main.from))\n return handleClose(state, tok, closed);\n }\n return null;\n}\nfunction closedBracketAt(state, pos) {\n let found = false;\n state.field(bracketState).between(0, state.doc.length, from => {\n if (from == pos)\n found = true;\n });\n return found;\n}\nfunction nextChar(doc, pos) {\n let next = doc.sliceString(pos, pos + 2);\n return next.slice(0, codePointSize(codePointAt(next, 0)));\n}\nfunction prevChar(doc, pos) {\n let prev = doc.sliceString(pos - 2, pos);\n return codePointSize(codePointAt(prev, 0)) == prev.length ? prev : prev.slice(1);\n}\nfunction handleOpen(state, open, close, closeBefore) {\n let dont = null, changes = state.changeByRange(range => {\n if (!range.empty)\n return { changes: [{ insert: open, from: range.from }, { insert: close, from: range.to }],\n effects: closeBracketEffect.of(range.to + open.length),\n range: EditorSelection.range(range.anchor + open.length, range.head + open.length) };\n let next = nextChar(state.doc, range.head);\n if (!next || /\\s/.test(next) || closeBefore.indexOf(next) > -1)\n return { changes: { insert: open + close, from: range.head },\n effects: closeBracketEffect.of(range.head + open.length),\n range: EditorSelection.cursor(range.head + open.length) };\n return { range: dont = range };\n });\n return dont ? null : state.update(changes, {\n scrollIntoView: true,\n userEvent: \"input.type\"\n });\n}\nfunction handleClose(state, _open, close) {\n let dont = null, changes = state.changeByRange(range => {\n if (range.empty && nextChar(state.doc, range.head) == close)\n return { changes: { from: range.head, to: range.head + close.length, insert: close },\n range: EditorSelection.cursor(range.head + close.length) };\n return dont = { range };\n });\n return dont ? null : state.update(changes, {\n scrollIntoView: true,\n userEvent: \"input.type\"\n });\n}\n// Handles cases where the open and close token are the same, and\n// possibly triple quotes (as in `\"\"\"abc\"\"\"`-style quoting).\nfunction handleSame(state, token, allowTriple, config) {\n let stringPrefixes = config.stringPrefixes || defaults.stringPrefixes;\n let dont = null, changes = state.changeByRange(range => {\n if (!range.empty)\n return { changes: [{ insert: token, from: range.from }, { insert: token, from: range.to }],\n effects: closeBracketEffect.of(range.to + token.length),\n range: EditorSelection.range(range.anchor + token.length, range.head + token.length) };\n let pos = range.head, next = nextChar(state.doc, pos), start;\n if (next == token) {\n if (nodeStart(state, pos)) {\n return { changes: { insert: token + token, from: pos },\n effects: closeBracketEffect.of(pos + token.length),\n range: EditorSelection.cursor(pos + token.length) };\n }\n else if (closedBracketAt(state, pos)) {\n let isTriple = allowTriple && state.sliceDoc(pos, pos + token.length * 3) == token + token + token;\n let content = isTriple ? token + token + token : token;\n return { changes: { from: pos, to: pos + content.length, insert: content },\n range: EditorSelection.cursor(pos + content.length) };\n }\n }\n else if (allowTriple && state.sliceDoc(pos - 2 * token.length, pos) == token + token &&\n (start = canStartStringAt(state, pos - 2 * token.length, stringPrefixes)) > -1 &&\n nodeStart(state, start)) {\n return { changes: { insert: token + token + token + token, from: pos },\n effects: closeBracketEffect.of(pos + token.length),\n range: EditorSelection.cursor(pos + token.length) };\n }\n else if (state.charCategorizer(pos)(next) != CharCategory.Word) {\n if (canStartStringAt(state, pos, stringPrefixes) > -1 && !probablyInString(state, pos, token, stringPrefixes))\n return { changes: { insert: token + token, from: pos },\n effects: closeBracketEffect.of(pos + token.length),\n range: EditorSelection.cursor(pos + token.length) };\n }\n return { range: dont = range };\n });\n return dont ? null : state.update(changes, {\n scrollIntoView: true,\n userEvent: \"input.type\"\n });\n}\nfunction nodeStart(state, pos) {\n let tree = syntaxTree(state).resolveInner(pos + 1);\n return tree.parent && tree.from == pos;\n}\nfunction probablyInString(state, pos, quoteToken, prefixes) {\n let node = syntaxTree(state).resolveInner(pos, -1);\n let maxPrefix = prefixes.reduce((m, p) => Math.max(m, p.length), 0);\n for (let i = 0; i < 5; i++) {\n let start = state.sliceDoc(node.from, Math.min(node.to, node.from + quoteToken.length + maxPrefix));\n let quotePos = start.indexOf(quoteToken);\n if (!quotePos || quotePos > -1 && prefixes.indexOf(start.slice(0, quotePos)) > -1) {\n let first = node.firstChild;\n while (first && first.from == node.from && first.to - first.from > quoteToken.length + quotePos) {\n if (state.sliceDoc(first.to - quoteToken.length, first.to) == quoteToken)\n return false;\n first = first.firstChild;\n }\n return true;\n }\n let parent = node.to == pos && node.parent;\n if (!parent)\n break;\n node = parent;\n }\n return false;\n}\nfunction canStartStringAt(state, pos, prefixes) {\n let charCat = state.charCategorizer(pos);\n if (charCat(state.sliceDoc(pos - 1, pos)) != CharCategory.Word)\n return pos;\n for (let prefix of prefixes) {\n let start = pos - prefix.length;\n if (state.sliceDoc(start, pos) == prefix && charCat(state.sliceDoc(start - 1, start)) != CharCategory.Word)\n return start;\n }\n return -1;\n}\n\n/**\nReturns an extension that enables autocompletion.\n*/\nfunction autocompletion(config = {}) {\n return [\n completionState,\n completionConfig.of(config),\n completionPlugin,\n completionKeymapExt,\n baseTheme\n ];\n}\n/**\nBasic keybindings for autocompletion.\n\n - Ctrl-Space: [`startCompletion`](https://codemirror.net/6/docs/ref/#autocomplete.startCompletion)\n - Escape: [`closeCompletion`](https://codemirror.net/6/docs/ref/#autocomplete.closeCompletion)\n - ArrowDown: [`moveCompletionSelection`](https://codemirror.net/6/docs/ref/#autocomplete.moveCompletionSelection)`(true)`\n - ArrowUp: [`moveCompletionSelection`](https://codemirror.net/6/docs/ref/#autocomplete.moveCompletionSelection)`(false)`\n - PageDown: [`moveCompletionSelection`](https://codemirror.net/6/docs/ref/#autocomplete.moveCompletionSelection)`(true, \"page\")`\n - PageDown: [`moveCompletionSelection`](https://codemirror.net/6/docs/ref/#autocomplete.moveCompletionSelection)`(true, \"page\")`\n - Enter: [`acceptCompletion`](https://codemirror.net/6/docs/ref/#autocomplete.acceptCompletion)\n*/\nconst completionKeymap = [\n { key: \"Ctrl-Space\", run: startCompletion },\n { key: \"Escape\", run: closeCompletion },\n { key: \"ArrowDown\", run: /*@__PURE__*/moveCompletionSelection(true) },\n { key: \"ArrowUp\", run: /*@__PURE__*/moveCompletionSelection(false) },\n { key: \"PageDown\", run: /*@__PURE__*/moveCompletionSelection(true, \"page\") },\n { key: \"PageUp\", run: /*@__PURE__*/moveCompletionSelection(false, \"page\") },\n { key: \"Enter\", run: acceptCompletion }\n];\nconst completionKeymapExt = /*@__PURE__*/Prec.highest(/*@__PURE__*/keymap.computeN([completionConfig], state => state.facet(completionConfig).defaultKeymap ? [completionKeymap] : []));\n/**\nGet the current completion status. When completions are available,\nthis will return `\"active\"`. When completions are pending (in the\nprocess of being queried), this returns `\"pending\"`. Otherwise, it\nreturns `null`.\n*/\nfunction completionStatus(state) {\n let cState = state.field(completionState, false);\n return cState && cState.active.some(a => a.state == 1 /* State.Pending */) ? \"pending\"\n : cState && cState.active.some(a => a.state != 0 /* State.Inactive */) ? \"active\" : null;\n}\nconst completionArrayCache = /*@__PURE__*/new WeakMap;\n/**\nReturns the available completions as an array.\n*/\nfunction currentCompletions(state) {\n var _a;\n let open = (_a = state.field(completionState, false)) === null || _a === void 0 ? void 0 : _a.open;\n if (!open || open.disabled)\n return [];\n let completions = completionArrayCache.get(open.options);\n if (!completions)\n completionArrayCache.set(open.options, completions = open.options.map(o => o.completion));\n return completions;\n}\n/**\nReturn the currently selected completion, if any.\n*/\nfunction selectedCompletion(state) {\n var _a;\n let open = (_a = state.field(completionState, false)) === null || _a === void 0 ? void 0 : _a.open;\n return open && !open.disabled && open.selected >= 0 ? open.options[open.selected].completion : null;\n}\n/**\nReturns the currently selected position in the active completion\nlist, or null if no completions are active.\n*/\nfunction selectedCompletionIndex(state) {\n var _a;\n let open = (_a = state.field(completionState, false)) === null || _a === void 0 ? void 0 : _a.open;\n return open && !open.disabled && open.selected >= 0 ? open.selected : null;\n}\n/**\nCreate an effect that can be attached to a transaction to change\nthe currently selected completion.\n*/\nfunction setSelectedCompletion(index) {\n return setSelectedEffect.of(index);\n}\n\nexport { CompletionContext, acceptCompletion, autocompletion, clearSnippet, closeBrackets, closeBracketsKeymap, closeCompletion, completeAnyWord, completeFromList, completionKeymap, completionStatus, currentCompletions, deleteBracketPair, hasNextSnippetField, hasPrevSnippetField, ifIn, ifNotIn, insertBracket, insertCompletionText, moveCompletionSelection, nextSnippetField, pickedCompletion, prevSnippetField, selectedCompletion, selectedCompletionIndex, setSelectedCompletion, snippet, snippetCompletion, snippetKeymap, startCompletion };\n","import { NodeProp, IterMode, Tree, TreeFragment, Parser, NodeType, NodeSet } from '@lezer/common';\nimport { StateEffect, StateField, Facet, EditorState, countColumn, combineConfig, RangeSet, RangeSetBuilder, Prec } from '@codemirror/state';\nimport { ViewPlugin, logException, EditorView, Decoration, WidgetType, gutter, GutterMarker } from '@codemirror/view';\nimport { tags, tagHighlighter, highlightTree, styleTags } from '@lezer/highlight';\nimport { StyleModule } from 'style-mod';\n\nvar _a;\n/**\nNode prop stored in a parser's top syntax node to provide the\nfacet that stores language-specific data for that language.\n*/\nconst languageDataProp = /*@__PURE__*/new NodeProp();\n/**\nHelper function to define a facet (to be added to the top syntax\nnode(s) for a language via\n[`languageDataProp`](https://codemirror.net/6/docs/ref/#language.languageDataProp)), that will be\nused to associate language data with the language. You\nprobably only need this when subclassing\n[`Language`](https://codemirror.net/6/docs/ref/#language.Language).\n*/\nfunction defineLanguageFacet(baseData) {\n return Facet.define({\n combine: baseData ? values => values.concat(baseData) : undefined\n });\n}\n/**\nSyntax node prop used to register sublanguages. Should be added to\nthe top level node type for the language.\n*/\nconst sublanguageProp = /*@__PURE__*/new NodeProp();\n/**\nA language object manages parsing and per-language\n[metadata](https://codemirror.net/6/docs/ref/#state.EditorState.languageDataAt). Parse data is\nmanaged as a [Lezer](https://lezer.codemirror.net) tree. The class\ncan be used directly, via the [`LRLanguage`](https://codemirror.net/6/docs/ref/#language.LRLanguage)\nsubclass for [Lezer](https://lezer.codemirror.net/) LR parsers, or\nvia the [`StreamLanguage`](https://codemirror.net/6/docs/ref/#language.StreamLanguage) subclass\nfor stream parsers.\n*/\nclass Language {\n /**\n Construct a language object. If you need to invoke this\n directly, first define a data facet with\n [`defineLanguageFacet`](https://codemirror.net/6/docs/ref/#language.defineLanguageFacet), and then\n configure your parser to [attach](https://codemirror.net/6/docs/ref/#language.languageDataProp) it\n to the language's outer syntax node.\n */\n constructor(\n /**\n The [language data](https://codemirror.net/6/docs/ref/#state.EditorState.languageDataAt) facet\n used for this language.\n */\n data, parser, extraExtensions = [], \n /**\n A language name.\n */\n name = \"\") {\n this.data = data;\n this.name = name;\n // Kludge to define EditorState.tree as a debugging helper,\n // without the EditorState package actually knowing about\n // languages and lezer trees.\n if (!EditorState.prototype.hasOwnProperty(\"tree\"))\n Object.defineProperty(EditorState.prototype, \"tree\", { get() { return syntaxTree(this); } });\n this.parser = parser;\n this.extension = [\n language.of(this),\n EditorState.languageData.of((state, pos, side) => {\n let top = topNodeAt(state, pos, side), data = top.type.prop(languageDataProp);\n if (!data)\n return [];\n let base = state.facet(data), sub = top.type.prop(sublanguageProp);\n if (sub) {\n let innerNode = top.resolve(pos - top.from, side);\n for (let sublang of sub)\n if (sublang.test(innerNode, state)) {\n let data = state.facet(sublang.facet);\n return sublang.type == \"replace\" ? data : data.concat(base);\n }\n }\n return base;\n })\n ].concat(extraExtensions);\n }\n /**\n Query whether this language is active at the given position.\n */\n isActiveAt(state, pos, side = -1) {\n return topNodeAt(state, pos, side).type.prop(languageDataProp) == this.data;\n }\n /**\n Find the document regions that were parsed using this language.\n The returned regions will _include_ any nested languages rooted\n in this language, when those exist.\n */\n findRegions(state) {\n let lang = state.facet(language);\n if ((lang === null || lang === void 0 ? void 0 : lang.data) == this.data)\n return [{ from: 0, to: state.doc.length }];\n if (!lang || !lang.allowsNesting)\n return [];\n let result = [];\n let explore = (tree, from) => {\n if (tree.prop(languageDataProp) == this.data) {\n result.push({ from, to: from + tree.length });\n return;\n }\n let mount = tree.prop(NodeProp.mounted);\n if (mount) {\n if (mount.tree.prop(languageDataProp) == this.data) {\n if (mount.overlay)\n for (let r of mount.overlay)\n result.push({ from: r.from + from, to: r.to + from });\n else\n result.push({ from: from, to: from + tree.length });\n return;\n }\n else if (mount.overlay) {\n let size = result.length;\n explore(mount.tree, mount.overlay[0].from + from);\n if (result.length > size)\n return;\n }\n }\n for (let i = 0; i < tree.children.length; i++) {\n let ch = tree.children[i];\n if (ch instanceof Tree)\n explore(ch, tree.positions[i] + from);\n }\n };\n explore(syntaxTree(state), 0);\n return result;\n }\n /**\n Indicates whether this language allows nested languages. The\n default implementation returns true.\n */\n get allowsNesting() { return true; }\n}\n/**\n@internal\n*/\nLanguage.setState = /*@__PURE__*/StateEffect.define();\nfunction topNodeAt(state, pos, side) {\n let topLang = state.facet(language), tree = syntaxTree(state).topNode;\n if (!topLang || topLang.allowsNesting) {\n for (let node = tree; node; node = node.enter(pos, side, IterMode.ExcludeBuffers))\n if (node.type.isTop)\n tree = node;\n }\n return tree;\n}\n/**\nA subclass of [`Language`](https://codemirror.net/6/docs/ref/#language.Language) for use with Lezer\n[LR parsers](https://lezer.codemirror.net/docs/ref#lr.LRParser)\nparsers.\n*/\nclass LRLanguage extends Language {\n constructor(data, parser, name) {\n super(data, parser, [], name);\n this.parser = parser;\n }\n /**\n Define a language from a parser.\n */\n static define(spec) {\n let data = defineLanguageFacet(spec.languageData);\n return new LRLanguage(data, spec.parser.configure({\n props: [languageDataProp.add(type => type.isTop ? data : undefined)]\n }), spec.name);\n }\n /**\n Create a new instance of this language with a reconfigured\n version of its parser and optionally a new name.\n */\n configure(options, name) {\n return new LRLanguage(this.data, this.parser.configure(options), name || this.name);\n }\n get allowsNesting() { return this.parser.hasWrappers(); }\n}\n/**\nGet the syntax tree for a state, which is the current (possibly\nincomplete) parse tree of the active\n[language](https://codemirror.net/6/docs/ref/#language.Language), or the empty tree if there is no\nlanguage available.\n*/\nfunction syntaxTree(state) {\n let field = state.field(Language.state, false);\n return field ? field.tree : Tree.empty;\n}\n/**\nTry to get a parse tree that spans at least up to `upto`. The\nmethod will do at most `timeout` milliseconds of work to parse\nup to that point if the tree isn't already available.\n*/\nfunction ensureSyntaxTree(state, upto, timeout = 50) {\n var _a;\n let parse = (_a = state.field(Language.state, false)) === null || _a === void 0 ? void 0 : _a.context;\n if (!parse)\n return null;\n let oldVieport = parse.viewport;\n parse.updateViewport({ from: 0, to: upto });\n let result = parse.isDone(upto) || parse.work(timeout, upto) ? parse.tree : null;\n parse.updateViewport(oldVieport);\n return result;\n}\n/**\nQueries whether there is a full syntax tree available up to the\ngiven document position. If there isn't, the background parse\nprocess _might_ still be working and update the tree further, but\nthere is no guarantee of that—the parser will [stop\nworking](https://codemirror.net/6/docs/ref/#language.syntaxParserRunning) when it has spent a\ncertain amount of time or has moved beyond the visible viewport.\nAlways returns false if no language has been enabled.\n*/\nfunction syntaxTreeAvailable(state, upto = state.doc.length) {\n var _a;\n return ((_a = state.field(Language.state, false)) === null || _a === void 0 ? void 0 : _a.context.isDone(upto)) || false;\n}\n/**\nMove parsing forward, and update the editor state afterwards to\nreflect the new tree. Will work for at most `timeout`\nmilliseconds. Returns true if the parser managed get to the given\nposition in that time.\n*/\nfunction forceParsing(view, upto = view.viewport.to, timeout = 100) {\n let success = ensureSyntaxTree(view.state, upto, timeout);\n if (success != syntaxTree(view.state))\n view.dispatch({});\n return !!success;\n}\n/**\nTells you whether the language parser is planning to do more\nparsing work (in a `requestIdleCallback` pseudo-thread) or has\nstopped running, either because it parsed the entire document,\nbecause it spent too much time and was cut off, or because there\nis no language parser enabled.\n*/\nfunction syntaxParserRunning(view) {\n var _a;\n return ((_a = view.plugin(parseWorker)) === null || _a === void 0 ? void 0 : _a.isWorking()) || false;\n}\n/**\nLezer-style\n[`Input`](https://lezer.codemirror.net/docs/ref#common.Input)\nobject for a [`Text`](https://codemirror.net/6/docs/ref/#state.Text) object.\n*/\nclass DocInput {\n /**\n Create an input object for the given document.\n */\n constructor(doc) {\n this.doc = doc;\n this.cursorPos = 0;\n this.string = \"\";\n this.cursor = doc.iter();\n }\n get length() { return this.doc.length; }\n syncTo(pos) {\n this.string = this.cursor.next(pos - this.cursorPos).value;\n this.cursorPos = pos + this.string.length;\n return this.cursorPos - this.string.length;\n }\n chunk(pos) {\n this.syncTo(pos);\n return this.string;\n }\n get lineChunks() { return true; }\n read(from, to) {\n let stringStart = this.cursorPos - this.string.length;\n if (from < stringStart || to >= this.cursorPos)\n return this.doc.sliceString(from, to);\n else\n return this.string.slice(from - stringStart, to - stringStart);\n }\n}\nlet currentContext = null;\n/**\nA parse context provided to parsers working on the editor content.\n*/\nclass ParseContext {\n constructor(parser, \n /**\n The current editor state.\n */\n state, \n /**\n Tree fragments that can be reused by incremental re-parses.\n */\n fragments = [], \n /**\n @internal\n */\n tree, \n /**\n @internal\n */\n treeLen, \n /**\n The current editor viewport (or some overapproximation\n thereof). Intended to be used for opportunistically avoiding\n work (in which case\n [`skipUntilInView`](https://codemirror.net/6/docs/ref/#language.ParseContext.skipUntilInView)\n should be called to make sure the parser is restarted when the\n skipped region becomes visible).\n */\n viewport, \n /**\n @internal\n */\n skipped, \n /**\n This is where skipping parsers can register a promise that,\n when resolved, will schedule a new parse. It is cleared when\n the parse worker picks up the promise. @internal\n */\n scheduleOn) {\n this.parser = parser;\n this.state = state;\n this.fragments = fragments;\n this.tree = tree;\n this.treeLen = treeLen;\n this.viewport = viewport;\n this.skipped = skipped;\n this.scheduleOn = scheduleOn;\n this.parse = null;\n /**\n @internal\n */\n this.tempSkipped = [];\n }\n /**\n @internal\n */\n static create(parser, state, viewport) {\n return new ParseContext(parser, state, [], Tree.empty, 0, viewport, [], null);\n }\n startParse() {\n return this.parser.startParse(new DocInput(this.state.doc), this.fragments);\n }\n /**\n @internal\n */\n work(until, upto) {\n if (upto != null && upto >= this.state.doc.length)\n upto = undefined;\n if (this.tree != Tree.empty && this.isDone(upto !== null && upto !== void 0 ? upto : this.state.doc.length)) {\n this.takeTree();\n return true;\n }\n return this.withContext(() => {\n var _a;\n if (typeof until == \"number\") {\n let endTime = Date.now() + until;\n until = () => Date.now() > endTime;\n }\n if (!this.parse)\n this.parse = this.startParse();\n if (upto != null && (this.parse.stoppedAt == null || this.parse.stoppedAt > upto) &&\n upto < this.state.doc.length)\n this.parse.stopAt(upto);\n for (;;) {\n let done = this.parse.advance();\n if (done) {\n this.fragments = this.withoutTempSkipped(TreeFragment.addTree(done, this.fragments, this.parse.stoppedAt != null));\n this.treeLen = (_a = this.parse.stoppedAt) !== null && _a !== void 0 ? _a : this.state.doc.length;\n this.tree = done;\n this.parse = null;\n if (this.treeLen < (upto !== null && upto !== void 0 ? upto : this.state.doc.length))\n this.parse = this.startParse();\n else\n return true;\n }\n if (until())\n return false;\n }\n });\n }\n /**\n @internal\n */\n takeTree() {\n let pos, tree;\n if (this.parse && (pos = this.parse.parsedPos) >= this.treeLen) {\n if (this.parse.stoppedAt == null || this.parse.stoppedAt > pos)\n this.parse.stopAt(pos);\n this.withContext(() => { while (!(tree = this.parse.advance())) { } });\n this.treeLen = pos;\n this.tree = tree;\n this.fragments = this.withoutTempSkipped(TreeFragment.addTree(this.tree, this.fragments, true));\n this.parse = null;\n }\n }\n withContext(f) {\n let prev = currentContext;\n currentContext = this;\n try {\n return f();\n }\n finally {\n currentContext = prev;\n }\n }\n withoutTempSkipped(fragments) {\n for (let r; r = this.tempSkipped.pop();)\n fragments = cutFragments(fragments, r.from, r.to);\n return fragments;\n }\n /**\n @internal\n */\n changes(changes, newState) {\n let { fragments, tree, treeLen, viewport, skipped } = this;\n this.takeTree();\n if (!changes.empty) {\n let ranges = [];\n changes.iterChangedRanges((fromA, toA, fromB, toB) => ranges.push({ fromA, toA, fromB, toB }));\n fragments = TreeFragment.applyChanges(fragments, ranges);\n tree = Tree.empty;\n treeLen = 0;\n viewport = { from: changes.mapPos(viewport.from, -1), to: changes.mapPos(viewport.to, 1) };\n if (this.skipped.length) {\n skipped = [];\n for (let r of this.skipped) {\n let from = changes.mapPos(r.from, 1), to = changes.mapPos(r.to, -1);\n if (from < to)\n skipped.push({ from, to });\n }\n }\n }\n return new ParseContext(this.parser, newState, fragments, tree, treeLen, viewport, skipped, this.scheduleOn);\n }\n /**\n @internal\n */\n updateViewport(viewport) {\n if (this.viewport.from == viewport.from && this.viewport.to == viewport.to)\n return false;\n this.viewport = viewport;\n let startLen = this.skipped.length;\n for (let i = 0; i < this.skipped.length; i++) {\n let { from, to } = this.skipped[i];\n if (from < viewport.to && to > viewport.from) {\n this.fragments = cutFragments(this.fragments, from, to);\n this.skipped.splice(i--, 1);\n }\n }\n if (this.skipped.length >= startLen)\n return false;\n this.reset();\n return true;\n }\n /**\n @internal\n */\n reset() {\n if (this.parse) {\n this.takeTree();\n this.parse = null;\n }\n }\n /**\n Notify the parse scheduler that the given region was skipped\n because it wasn't in view, and the parse should be restarted\n when it comes into view.\n */\n skipUntilInView(from, to) {\n this.skipped.push({ from, to });\n }\n /**\n Returns a parser intended to be used as placeholder when\n asynchronously loading a nested parser. It'll skip its input and\n mark it as not-really-parsed, so that the next update will parse\n it again.\n \n When `until` is given, a reparse will be scheduled when that\n promise resolves.\n */\n static getSkippingParser(until) {\n return new class extends Parser {\n createParse(input, fragments, ranges) {\n let from = ranges[0].from, to = ranges[ranges.length - 1].to;\n let parser = {\n parsedPos: from,\n advance() {\n let cx = currentContext;\n if (cx) {\n for (let r of ranges)\n cx.tempSkipped.push(r);\n if (until)\n cx.scheduleOn = cx.scheduleOn ? Promise.all([cx.scheduleOn, until]) : until;\n }\n this.parsedPos = to;\n return new Tree(NodeType.none, [], [], to - from);\n },\n stoppedAt: null,\n stopAt() { }\n };\n return parser;\n }\n };\n }\n /**\n @internal\n */\n isDone(upto) {\n upto = Math.min(upto, this.state.doc.length);\n let frags = this.fragments;\n return this.treeLen >= upto && frags.length && frags[0].from == 0 && frags[0].to >= upto;\n }\n /**\n Get the context for the current parse, or `null` if no editor\n parse is in progress.\n */\n static get() { return currentContext; }\n}\nfunction cutFragments(fragments, from, to) {\n return TreeFragment.applyChanges(fragments, [{ fromA: from, toA: to, fromB: from, toB: to }]);\n}\nclass LanguageState {\n constructor(\n // A mutable parse state that is used to preserve work done during\n // the lifetime of a state when moving to the next state.\n context) {\n this.context = context;\n this.tree = context.tree;\n }\n apply(tr) {\n if (!tr.docChanged && this.tree == this.context.tree)\n return this;\n let newCx = this.context.changes(tr.changes, tr.state);\n // If the previous parse wasn't done, go forward only up to its\n // end position or the end of the viewport, to avoid slowing down\n // state updates with parse work beyond the viewport.\n let upto = this.context.treeLen == tr.startState.doc.length ? undefined\n : Math.max(tr.changes.mapPos(this.context.treeLen), newCx.viewport.to);\n if (!newCx.work(20 /* Work.Apply */, upto))\n newCx.takeTree();\n return new LanguageState(newCx);\n }\n static init(state) {\n let vpTo = Math.min(3000 /* Work.InitViewport */, state.doc.length);\n let parseState = ParseContext.create(state.facet(language).parser, state, { from: 0, to: vpTo });\n if (!parseState.work(20 /* Work.Apply */, vpTo))\n parseState.takeTree();\n return new LanguageState(parseState);\n }\n}\nLanguage.state = /*@__PURE__*/StateField.define({\n create: LanguageState.init,\n update(value, tr) {\n for (let e of tr.effects)\n if (e.is(Language.setState))\n return e.value;\n if (tr.startState.facet(language) != tr.state.facet(language))\n return LanguageState.init(tr.state);\n return value.apply(tr);\n }\n});\nlet requestIdle = (callback) => {\n let timeout = setTimeout(() => callback(), 500 /* Work.MaxPause */);\n return () => clearTimeout(timeout);\n};\nif (typeof requestIdleCallback != \"undefined\")\n requestIdle = (callback) => {\n let idle = -1, timeout = setTimeout(() => {\n idle = requestIdleCallback(callback, { timeout: 500 /* Work.MaxPause */ - 100 /* Work.MinPause */ });\n }, 100 /* Work.MinPause */);\n return () => idle < 0 ? clearTimeout(timeout) : cancelIdleCallback(idle);\n };\nconst isInputPending = typeof navigator != \"undefined\" && ((_a = navigator.scheduling) === null || _a === void 0 ? void 0 : _a.isInputPending)\n ? () => navigator.scheduling.isInputPending() : null;\nconst parseWorker = /*@__PURE__*/ViewPlugin.fromClass(class ParseWorker {\n constructor(view) {\n this.view = view;\n this.working = null;\n this.workScheduled = 0;\n // End of the current time chunk\n this.chunkEnd = -1;\n // Milliseconds of budget left for this chunk\n this.chunkBudget = -1;\n this.work = this.work.bind(this);\n this.scheduleWork();\n }\n update(update) {\n let cx = this.view.state.field(Language.state).context;\n if (cx.updateViewport(update.view.viewport) || this.view.viewport.to > cx.treeLen)\n this.scheduleWork();\n if (update.docChanged || update.selectionSet) {\n if (this.view.hasFocus)\n this.chunkBudget += 50 /* Work.ChangeBonus */;\n this.scheduleWork();\n }\n this.checkAsyncSchedule(cx);\n }\n scheduleWork() {\n if (this.working)\n return;\n let { state } = this.view, field = state.field(Language.state);\n if (field.tree != field.context.tree || !field.context.isDone(state.doc.length))\n this.working = requestIdle(this.work);\n }\n work(deadline) {\n this.working = null;\n let now = Date.now();\n if (this.chunkEnd < now && (this.chunkEnd < 0 || this.view.hasFocus)) { // Start a new chunk\n this.chunkEnd = now + 30000 /* Work.ChunkTime */;\n this.chunkBudget = 3000 /* Work.ChunkBudget */;\n }\n if (this.chunkBudget <= 0)\n return; // No more budget\n let { state, viewport: { to: vpTo } } = this.view, field = state.field(Language.state);\n if (field.tree == field.context.tree && field.context.isDone(vpTo + 100000 /* Work.MaxParseAhead */))\n return;\n let endTime = Date.now() + Math.min(this.chunkBudget, 100 /* Work.Slice */, deadline && !isInputPending ? Math.max(25 /* Work.MinSlice */, deadline.timeRemaining() - 5) : 1e9);\n let viewportFirst = field.context.treeLen < vpTo && state.doc.length > vpTo + 1000;\n let done = field.context.work(() => {\n return isInputPending && isInputPending() || Date.now() > endTime;\n }, vpTo + (viewportFirst ? 0 : 100000 /* Work.MaxParseAhead */));\n this.chunkBudget -= Date.now() - now;\n if (done || this.chunkBudget <= 0) {\n field.context.takeTree();\n this.view.dispatch({ effects: Language.setState.of(new LanguageState(field.context)) });\n }\n if (this.chunkBudget > 0 && !(done && !viewportFirst))\n this.scheduleWork();\n this.checkAsyncSchedule(field.context);\n }\n checkAsyncSchedule(cx) {\n if (cx.scheduleOn) {\n this.workScheduled++;\n cx.scheduleOn\n .then(() => this.scheduleWork())\n .catch(err => logException(this.view.state, err))\n .then(() => this.workScheduled--);\n cx.scheduleOn = null;\n }\n }\n destroy() {\n if (this.working)\n this.working();\n }\n isWorking() {\n return !!(this.working || this.workScheduled > 0);\n }\n}, {\n eventHandlers: { focus() { this.scheduleWork(); } }\n});\n/**\nThe facet used to associate a language with an editor state. Used\nby `Language` object's `extension` property (so you don't need to\nmanually wrap your languages in this). Can be used to access the\ncurrent language on a state.\n*/\nconst language = /*@__PURE__*/Facet.define({\n combine(languages) { return languages.length ? languages[0] : null; },\n enables: language => [\n Language.state,\n parseWorker,\n EditorView.contentAttributes.compute([language], state => {\n let lang = state.facet(language);\n return lang && lang.name ? { \"data-language\": lang.name } : {};\n })\n ]\n});\n/**\nThis class bundles a [language](https://codemirror.net/6/docs/ref/#language.Language) with an\noptional set of supporting extensions. Language packages are\nencouraged to export a function that optionally takes a\nconfiguration object and returns a `LanguageSupport` instance, as\nthe main way for client code to use the package.\n*/\nclass LanguageSupport {\n /**\n Create a language support object.\n */\n constructor(\n /**\n The language object.\n */\n language, \n /**\n An optional set of supporting extensions. When nesting a\n language in another language, the outer language is encouraged\n to include the supporting extensions for its inner languages\n in its own set of support extensions.\n */\n support = []) {\n this.language = language;\n this.support = support;\n this.extension = [language, support];\n }\n}\n/**\nLanguage descriptions are used to store metadata about languages\nand to dynamically load them. Their main role is finding the\nappropriate language for a filename or dynamically loading nested\nparsers.\n*/\nclass LanguageDescription {\n constructor(\n /**\n The name of this language.\n */\n name, \n /**\n Alternative names for the mode (lowercased, includes `this.name`).\n */\n alias, \n /**\n File extensions associated with this language.\n */\n extensions, \n /**\n Optional filename pattern that should be associated with this\n language.\n */\n filename, loadFunc, \n /**\n If the language has been loaded, this will hold its value.\n */\n support = undefined) {\n this.name = name;\n this.alias = alias;\n this.extensions = extensions;\n this.filename = filename;\n this.loadFunc = loadFunc;\n this.support = support;\n this.loading = null;\n }\n /**\n Start loading the the language. Will return a promise that\n resolves to a [`LanguageSupport`](https://codemirror.net/6/docs/ref/#language.LanguageSupport)\n object when the language successfully loads.\n */\n load() {\n return this.loading || (this.loading = this.loadFunc().then(support => this.support = support, err => { this.loading = null; throw err; }));\n }\n /**\n Create a language description.\n */\n static of(spec) {\n let { load, support } = spec;\n if (!load) {\n if (!support)\n throw new RangeError(\"Must pass either 'load' or 'support' to LanguageDescription.of\");\n load = () => Promise.resolve(support);\n }\n return new LanguageDescription(spec.name, (spec.alias || []).concat(spec.name).map(s => s.toLowerCase()), spec.extensions || [], spec.filename, load, support);\n }\n /**\n Look for a language in the given array of descriptions that\n matches the filename. Will first match\n [`filename`](https://codemirror.net/6/docs/ref/#language.LanguageDescription.filename) patterns,\n and then [extensions](https://codemirror.net/6/docs/ref/#language.LanguageDescription.extensions),\n and return the first language that matches.\n */\n static matchFilename(descs, filename) {\n for (let d of descs)\n if (d.filename && d.filename.test(filename))\n return d;\n let ext = /\\.([^.]+)$/.exec(filename);\n if (ext)\n for (let d of descs)\n if (d.extensions.indexOf(ext[1]) > -1)\n return d;\n return null;\n }\n /**\n Look for a language whose name or alias matches the the given\n name (case-insensitively). If `fuzzy` is true, and no direct\n matchs is found, this'll also search for a language whose name\n or alias occurs in the string (for names shorter than three\n characters, only when surrounded by non-word characters).\n */\n static matchLanguageName(descs, name, fuzzy = true) {\n name = name.toLowerCase();\n for (let d of descs)\n if (d.alias.some(a => a == name))\n return d;\n if (fuzzy)\n for (let d of descs)\n for (let a of d.alias) {\n let found = name.indexOf(a);\n if (found > -1 && (a.length > 2 || !/\\w/.test(name[found - 1]) && !/\\w/.test(name[found + a.length])))\n return d;\n }\n return null;\n }\n}\n\n/**\nFacet that defines a way to provide a function that computes the\nappropriate indentation depth, as a column number (see\n[`indentString`](https://codemirror.net/6/docs/ref/#language.indentString)), at the start of a given\nline. A return value of `null` indicates no indentation can be\ndetermined, and the line should inherit the indentation of the one\nabove it. A return value of `undefined` defers to the next indent\nservice.\n*/\nconst indentService = /*@__PURE__*/Facet.define();\n/**\nFacet for overriding the unit by which indentation happens. Should\nbe a string consisting either entirely of the same whitespace\ncharacter. When not set, this defaults to 2 spaces.\n*/\nconst indentUnit = /*@__PURE__*/Facet.define({\n combine: values => {\n if (!values.length)\n return \" \";\n let unit = values[0];\n if (!unit || /\\S/.test(unit) || Array.from(unit).some(e => e != unit[0]))\n throw new Error(\"Invalid indent unit: \" + JSON.stringify(values[0]));\n return unit;\n }\n});\n/**\nReturn the _column width_ of an indent unit in the state.\nDetermined by the [`indentUnit`](https://codemirror.net/6/docs/ref/#language.indentUnit)\nfacet, and [`tabSize`](https://codemirror.net/6/docs/ref/#state.EditorState^tabSize) when that\ncontains tabs.\n*/\nfunction getIndentUnit(state) {\n let unit = state.facet(indentUnit);\n return unit.charCodeAt(0) == 9 ? state.tabSize * unit.length : unit.length;\n}\n/**\nCreate an indentation string that covers columns 0 to `cols`.\nWill use tabs for as much of the columns as possible when the\n[`indentUnit`](https://codemirror.net/6/docs/ref/#language.indentUnit) facet contains\ntabs.\n*/\nfunction indentString(state, cols) {\n let result = \"\", ts = state.tabSize, ch = state.facet(indentUnit)[0];\n if (ch == \"\\t\") {\n while (cols >= ts) {\n result += \"\\t\";\n cols -= ts;\n }\n ch = \" \";\n }\n for (let i = 0; i < cols; i++)\n result += ch;\n return result;\n}\n/**\nGet the indentation, as a column number, at the given position.\nWill first consult any [indent services](https://codemirror.net/6/docs/ref/#language.indentService)\nthat are registered, and if none of those return an indentation,\nthis will check the syntax tree for the [indent node\nprop](https://codemirror.net/6/docs/ref/#language.indentNodeProp) and use that if found. Returns a\nnumber when an indentation could be determined, and null\notherwise.\n*/\nfunction getIndentation(context, pos) {\n if (context instanceof EditorState)\n context = new IndentContext(context);\n for (let service of context.state.facet(indentService)) {\n let result = service(context, pos);\n if (result !== undefined)\n return result;\n }\n let tree = syntaxTree(context.state);\n return tree.length >= pos ? syntaxIndentation(context, tree, pos) : null;\n}\n/**\nCreate a change set that auto-indents all lines touched by the\ngiven document range.\n*/\nfunction indentRange(state, from, to) {\n let updated = Object.create(null);\n let context = new IndentContext(state, { overrideIndentation: start => { var _a; return (_a = updated[start]) !== null && _a !== void 0 ? _a : -1; } });\n let changes = [];\n for (let pos = from; pos <= to;) {\n let line = state.doc.lineAt(pos);\n pos = line.to + 1;\n let indent = getIndentation(context, line.from);\n if (indent == null)\n continue;\n if (!/\\S/.test(line.text))\n indent = 0;\n let cur = /^\\s*/.exec(line.text)[0];\n let norm = indentString(state, indent);\n if (cur != norm) {\n updated[line.from] = indent;\n changes.push({ from: line.from, to: line.from + cur.length, insert: norm });\n }\n }\n return state.changes(changes);\n}\n/**\nIndentation contexts are used when calling [indentation\nservices](https://codemirror.net/6/docs/ref/#language.indentService). They provide helper utilities\nuseful in indentation logic, and can selectively override the\nindentation reported for some lines.\n*/\nclass IndentContext {\n /**\n Create an indent context.\n */\n constructor(\n /**\n The editor state.\n */\n state, \n /**\n @internal\n */\n options = {}) {\n this.state = state;\n this.options = options;\n this.unit = getIndentUnit(state);\n }\n /**\n Get a description of the line at the given position, taking\n [simulated line\n breaks](https://codemirror.net/6/docs/ref/#language.IndentContext.constructor^options.simulateBreak)\n into account. If there is such a break at `pos`, the `bias`\n argument determines whether the part of the line line before or\n after the break is used.\n */\n lineAt(pos, bias = 1) {\n let line = this.state.doc.lineAt(pos);\n let { simulateBreak, simulateDoubleBreak } = this.options;\n if (simulateBreak != null && simulateBreak >= line.from && simulateBreak <= line.to) {\n if (simulateDoubleBreak && simulateBreak == pos)\n return { text: \"\", from: pos };\n else if (bias < 0 ? simulateBreak < pos : simulateBreak <= pos)\n return { text: line.text.slice(simulateBreak - line.from), from: simulateBreak };\n else\n return { text: line.text.slice(0, simulateBreak - line.from), from: line.from };\n }\n return line;\n }\n /**\n Get the text directly after `pos`, either the entire line\n or the next 100 characters, whichever is shorter.\n */\n textAfterPos(pos, bias = 1) {\n if (this.options.simulateDoubleBreak && pos == this.options.simulateBreak)\n return \"\";\n let { text, from } = this.lineAt(pos, bias);\n return text.slice(pos - from, Math.min(text.length, pos + 100 - from));\n }\n /**\n Find the column for the given position.\n */\n column(pos, bias = 1) {\n let { text, from } = this.lineAt(pos, bias);\n let result = this.countColumn(text, pos - from);\n let override = this.options.overrideIndentation ? this.options.overrideIndentation(from) : -1;\n if (override > -1)\n result += override - this.countColumn(text, text.search(/\\S|$/));\n return result;\n }\n /**\n Find the column position (taking tabs into account) of the given\n position in the given string.\n */\n countColumn(line, pos = line.length) {\n return countColumn(line, this.state.tabSize, pos);\n }\n /**\n Find the indentation column of the line at the given point.\n */\n lineIndent(pos, bias = 1) {\n let { text, from } = this.lineAt(pos, bias);\n let override = this.options.overrideIndentation;\n if (override) {\n let overriden = override(from);\n if (overriden > -1)\n return overriden;\n }\n return this.countColumn(text, text.search(/\\S|$/));\n }\n /**\n Returns the [simulated line\n break](https://codemirror.net/6/docs/ref/#language.IndentContext.constructor^options.simulateBreak)\n for this context, if any.\n */\n get simulatedBreak() {\n return this.options.simulateBreak || null;\n }\n}\n/**\nA syntax tree node prop used to associate indentation strategies\nwith node types. Such a strategy is a function from an indentation\ncontext to a column number (see also\n[`indentString`](https://codemirror.net/6/docs/ref/#language.indentString)) or null, where null\nindicates that no definitive indentation can be determined.\n*/\nconst indentNodeProp = /*@__PURE__*/new NodeProp();\n// Compute the indentation for a given position from the syntax tree.\nfunction syntaxIndentation(cx, ast, pos) {\n let stack = ast.resolveStack(pos);\n let inner = stack.node.enterUnfinishedNodesBefore(pos);\n if (inner != stack.node) {\n let add = [];\n for (let cur = inner; cur != stack.node; cur = cur.parent)\n add.push(cur);\n for (let i = add.length - 1; i >= 0; i--)\n stack = { node: add[i], next: stack };\n }\n return indentFor(stack, cx, pos);\n}\nfunction indentFor(stack, cx, pos) {\n for (let cur = stack; cur; cur = cur.next) {\n let strategy = indentStrategy(cur.node);\n if (strategy)\n return strategy(TreeIndentContext.create(cx, pos, cur));\n }\n return 0;\n}\nfunction ignoreClosed(cx) {\n return cx.pos == cx.options.simulateBreak && cx.options.simulateDoubleBreak;\n}\nfunction indentStrategy(tree) {\n let strategy = tree.type.prop(indentNodeProp);\n if (strategy)\n return strategy;\n let first = tree.firstChild, close;\n if (first && (close = first.type.prop(NodeProp.closedBy))) {\n let last = tree.lastChild, closed = last && close.indexOf(last.name) > -1;\n return cx => delimitedStrategy(cx, true, 1, undefined, closed && !ignoreClosed(cx) ? last.from : undefined);\n }\n return tree.parent == null ? topIndent : null;\n}\nfunction topIndent() { return 0; }\n/**\nObjects of this type provide context information and helper\nmethods to indentation functions registered on syntax nodes.\n*/\nclass TreeIndentContext extends IndentContext {\n constructor(base, \n /**\n The position at which indentation is being computed.\n */\n pos, \n /**\n @internal\n */\n context) {\n super(base.state, base.options);\n this.base = base;\n this.pos = pos;\n this.context = context;\n }\n /**\n The syntax tree node to which the indentation strategy\n applies.\n */\n get node() { return this.context.node; }\n /**\n @internal\n */\n static create(base, pos, context) {\n return new TreeIndentContext(base, pos, context);\n }\n /**\n Get the text directly after `this.pos`, either the entire line\n or the next 100 characters, whichever is shorter.\n */\n get textAfter() {\n return this.textAfterPos(this.pos);\n }\n /**\n Get the indentation at the reference line for `this.node`, which\n is the line on which it starts, unless there is a node that is\n _not_ a parent of this node covering the start of that line. If\n so, the line at the start of that node is tried, again skipping\n on if it is covered by another such node.\n */\n get baseIndent() {\n return this.baseIndentFor(this.node);\n }\n /**\n Get the indentation for the reference line of the given node\n (see [`baseIndent`](https://codemirror.net/6/docs/ref/#language.TreeIndentContext.baseIndent)).\n */\n baseIndentFor(node) {\n let line = this.state.doc.lineAt(node.from);\n // Skip line starts that are covered by a sibling (or cousin, etc)\n for (;;) {\n let atBreak = node.resolve(line.from);\n while (atBreak.parent && atBreak.parent.from == atBreak.from)\n atBreak = atBreak.parent;\n if (isParent(atBreak, node))\n break;\n line = this.state.doc.lineAt(atBreak.from);\n }\n return this.lineIndent(line.from);\n }\n /**\n Continue looking for indentations in the node's parent nodes,\n and return the result of that.\n */\n continue() {\n return indentFor(this.context.next, this.base, this.pos);\n }\n}\nfunction isParent(parent, of) {\n for (let cur = of; cur; cur = cur.parent)\n if (parent == cur)\n return true;\n return false;\n}\n// Check whether a delimited node is aligned (meaning there are\n// non-skipped nodes on the same line as the opening delimiter). And\n// if so, return the opening token.\nfunction bracketedAligned(context) {\n let tree = context.node;\n let openToken = tree.childAfter(tree.from), last = tree.lastChild;\n if (!openToken)\n return null;\n let sim = context.options.simulateBreak;\n let openLine = context.state.doc.lineAt(openToken.from);\n let lineEnd = sim == null || sim <= openLine.from ? openLine.to : Math.min(openLine.to, sim);\n for (let pos = openToken.to;;) {\n let next = tree.childAfter(pos);\n if (!next || next == last)\n return null;\n if (!next.type.isSkipped)\n return next.from < lineEnd ? openToken : null;\n pos = next.to;\n }\n}\n/**\nAn indentation strategy for delimited (usually bracketed) nodes.\nWill, by default, indent one unit more than the parent's base\nindent unless the line starts with a closing token. When `align`\nis true and there are non-skipped nodes on the node's opening\nline, the content of the node will be aligned with the end of the\nopening node, like this:\n\n foo(bar,\n baz)\n*/\nfunction delimitedIndent({ closing, align = true, units = 1 }) {\n return (context) => delimitedStrategy(context, align, units, closing);\n}\nfunction delimitedStrategy(context, align, units, closing, closedAt) {\n let after = context.textAfter, space = after.match(/^\\s*/)[0].length;\n let closed = closing && after.slice(space, space + closing.length) == closing || closedAt == context.pos + space;\n let aligned = align ? bracketedAligned(context) : null;\n if (aligned)\n return closed ? context.column(aligned.from) : context.column(aligned.to);\n return context.baseIndent + (closed ? 0 : context.unit * units);\n}\n/**\nAn indentation strategy that aligns a node's content to its base\nindentation.\n*/\nconst flatIndent = (context) => context.baseIndent;\n/**\nCreates an indentation strategy that, by default, indents\ncontinued lines one unit more than the node's base indentation.\nYou can provide `except` to prevent indentation of lines that\nmatch a pattern (for example `/^else\\b/` in `if`/`else`\nconstructs), and you can change the amount of units used with the\n`units` option.\n*/\nfunction continuedIndent({ except, units = 1 } = {}) {\n return (context) => {\n let matchExcept = except && except.test(context.textAfter);\n return context.baseIndent + (matchExcept ? 0 : units * context.unit);\n };\n}\nconst DontIndentBeyond = 200;\n/**\nEnables reindentation on input. When a language defines an\n`indentOnInput` field in its [language\ndata](https://codemirror.net/6/docs/ref/#state.EditorState.languageDataAt), which must hold a regular\nexpression, the line at the cursor will be reindented whenever new\ntext is typed and the input from the start of the line up to the\ncursor matches that regexp.\n\nTo avoid unneccesary reindents, it is recommended to start the\nregexp with `^` (usually followed by `\\s*`), and end it with `$`.\nFor example, `/^\\s*\\}$/` will reindent when a closing brace is\nadded at the start of a line.\n*/\nfunction indentOnInput() {\n return EditorState.transactionFilter.of(tr => {\n if (!tr.docChanged || !tr.isUserEvent(\"input.type\") && !tr.isUserEvent(\"input.complete\"))\n return tr;\n let rules = tr.startState.languageDataAt(\"indentOnInput\", tr.startState.selection.main.head);\n if (!rules.length)\n return tr;\n let doc = tr.newDoc, { head } = tr.newSelection.main, line = doc.lineAt(head);\n if (head > line.from + DontIndentBeyond)\n return tr;\n let lineStart = doc.sliceString(line.from, head);\n if (!rules.some(r => r.test(lineStart)))\n return tr;\n let { state } = tr, last = -1, changes = [];\n for (let { head } of state.selection.ranges) {\n let line = state.doc.lineAt(head);\n if (line.from == last)\n continue;\n last = line.from;\n let indent = getIndentation(state, line.from);\n if (indent == null)\n continue;\n let cur = /^\\s*/.exec(line.text)[0];\n let norm = indentString(state, indent);\n if (cur != norm)\n changes.push({ from: line.from, to: line.from + cur.length, insert: norm });\n }\n return changes.length ? [tr, { changes, sequential: true }] : tr;\n });\n}\n\n/**\nA facet that registers a code folding service. When called with\nthe extent of a line, such a function should return a foldable\nrange that starts on that line (but continues beyond it), if one\ncan be found.\n*/\nconst foldService = /*@__PURE__*/Facet.define();\n/**\nThis node prop is used to associate folding information with\nsyntax node types. Given a syntax node, it should check whether\nthat tree is foldable and return the range that can be collapsed\nwhen it is.\n*/\nconst foldNodeProp = /*@__PURE__*/new NodeProp();\n/**\n[Fold](https://codemirror.net/6/docs/ref/#language.foldNodeProp) function that folds everything but\nthe first and the last child of a syntax node. Useful for nodes\nthat start and end with delimiters.\n*/\nfunction foldInside(node) {\n let first = node.firstChild, last = node.lastChild;\n return first && first.to < last.from ? { from: first.to, to: last.type.isError ? node.to : last.from } : null;\n}\nfunction syntaxFolding(state, start, end) {\n let tree = syntaxTree(state);\n if (tree.length < end)\n return null;\n let stack = tree.resolveStack(end, 1);\n let found = null;\n for (let iter = stack; iter; iter = iter.next) {\n let cur = iter.node;\n if (cur.to <= end || cur.from > end)\n continue;\n if (found && cur.from < start)\n break;\n let prop = cur.type.prop(foldNodeProp);\n if (prop && (cur.to < tree.length - 50 || tree.length == state.doc.length || !isUnfinished(cur))) {\n let value = prop(cur, state);\n if (value && value.from <= end && value.from >= start && value.to > end)\n found = value;\n }\n }\n return found;\n}\nfunction isUnfinished(node) {\n let ch = node.lastChild;\n return ch && ch.to == node.to && ch.type.isError;\n}\n/**\nCheck whether the given line is foldable. First asks any fold\nservices registered through\n[`foldService`](https://codemirror.net/6/docs/ref/#language.foldService), and if none of them return\na result, tries to query the [fold node\nprop](https://codemirror.net/6/docs/ref/#language.foldNodeProp) of syntax nodes that cover the end\nof the line.\n*/\nfunction foldable(state, lineStart, lineEnd) {\n for (let service of state.facet(foldService)) {\n let result = service(state, lineStart, lineEnd);\n if (result)\n return result;\n }\n return syntaxFolding(state, lineStart, lineEnd);\n}\nfunction mapRange(range, mapping) {\n let from = mapping.mapPos(range.from, 1), to = mapping.mapPos(range.to, -1);\n return from >= to ? undefined : { from, to };\n}\n/**\nState effect that can be attached to a transaction to fold the\ngiven range. (You probably only need this in exceptional\ncircumstances—usually you'll just want to let\n[`foldCode`](https://codemirror.net/6/docs/ref/#language.foldCode) and the [fold\ngutter](https://codemirror.net/6/docs/ref/#language.foldGutter) create the transactions.)\n*/\nconst foldEffect = /*@__PURE__*/StateEffect.define({ map: mapRange });\n/**\nState effect that unfolds the given range (if it was folded).\n*/\nconst unfoldEffect = /*@__PURE__*/StateEffect.define({ map: mapRange });\nfunction selectedLines(view) {\n let lines = [];\n for (let { head } of view.state.selection.ranges) {\n if (lines.some(l => l.from <= head && l.to >= head))\n continue;\n lines.push(view.lineBlockAt(head));\n }\n return lines;\n}\n/**\nThe state field that stores the folded ranges (as a [decoration\nset](https://codemirror.net/6/docs/ref/#view.DecorationSet)). Can be passed to\n[`EditorState.toJSON`](https://codemirror.net/6/docs/ref/#state.EditorState.toJSON) and\n[`fromJSON`](https://codemirror.net/6/docs/ref/#state.EditorState^fromJSON) to serialize the fold\nstate.\n*/\nconst foldState = /*@__PURE__*/StateField.define({\n create() {\n return Decoration.none;\n },\n update(folded, tr) {\n folded = folded.map(tr.changes);\n for (let e of tr.effects) {\n if (e.is(foldEffect) && !foldExists(folded, e.value.from, e.value.to)) {\n let { preparePlaceholder } = tr.state.facet(foldConfig);\n let widget = !preparePlaceholder ? foldWidget :\n Decoration.replace({ widget: new PreparedFoldWidget(preparePlaceholder(tr.state, e.value)) });\n folded = folded.update({ add: [widget.range(e.value.from, e.value.to)] });\n }\n else if (e.is(unfoldEffect)) {\n folded = folded.update({ filter: (from, to) => e.value.from != from || e.value.to != to,\n filterFrom: e.value.from, filterTo: e.value.to });\n }\n }\n // Clear folded ranges that cover the selection head\n if (tr.selection) {\n let onSelection = false, { head } = tr.selection.main;\n folded.between(head, head, (a, b) => { if (a < head && b > head)\n onSelection = true; });\n if (onSelection)\n folded = folded.update({\n filterFrom: head,\n filterTo: head,\n filter: (a, b) => b <= head || a >= head\n });\n }\n return folded;\n },\n provide: f => EditorView.decorations.from(f),\n toJSON(folded, state) {\n let ranges = [];\n folded.between(0, state.doc.length, (from, to) => { ranges.push(from, to); });\n return ranges;\n },\n fromJSON(value) {\n if (!Array.isArray(value) || value.length % 2)\n throw new RangeError(\"Invalid JSON for fold state\");\n let ranges = [];\n for (let i = 0; i < value.length;) {\n let from = value[i++], to = value[i++];\n if (typeof from != \"number\" || typeof to != \"number\")\n throw new RangeError(\"Invalid JSON for fold state\");\n ranges.push(foldWidget.range(from, to));\n }\n return Decoration.set(ranges, true);\n }\n});\n/**\nGet a [range set](https://codemirror.net/6/docs/ref/#state.RangeSet) containing the folded ranges\nin the given state.\n*/\nfunction foldedRanges(state) {\n return state.field(foldState, false) || RangeSet.empty;\n}\nfunction findFold(state, from, to) {\n var _a;\n let found = null;\n (_a = state.field(foldState, false)) === null || _a === void 0 ? void 0 : _a.between(from, to, (from, to) => {\n if (!found || found.from > from)\n found = { from, to };\n });\n return found;\n}\nfunction foldExists(folded, from, to) {\n let found = false;\n folded.between(from, from, (a, b) => { if (a == from && b == to)\n found = true; });\n return found;\n}\nfunction maybeEnable(state, other) {\n return state.field(foldState, false) ? other : other.concat(StateEffect.appendConfig.of(codeFolding()));\n}\n/**\nFold the lines that are selected, if possible.\n*/\nconst foldCode = view => {\n for (let line of selectedLines(view)) {\n let range = foldable(view.state, line.from, line.to);\n if (range) {\n view.dispatch({ effects: maybeEnable(view.state, [foldEffect.of(range), announceFold(view, range)]) });\n return true;\n }\n }\n return false;\n};\n/**\nUnfold folded ranges on selected lines.\n*/\nconst unfoldCode = view => {\n if (!view.state.field(foldState, false))\n return false;\n let effects = [];\n for (let line of selectedLines(view)) {\n let folded = findFold(view.state, line.from, line.to);\n if (folded)\n effects.push(unfoldEffect.of(folded), announceFold(view, folded, false));\n }\n if (effects.length)\n view.dispatch({ effects });\n return effects.length > 0;\n};\nfunction announceFold(view, range, fold = true) {\n let lineFrom = view.state.doc.lineAt(range.from).number, lineTo = view.state.doc.lineAt(range.to).number;\n return EditorView.announce.of(`${view.state.phrase(fold ? \"Folded lines\" : \"Unfolded lines\")} ${lineFrom} ${view.state.phrase(\"to\")} ${lineTo}.`);\n}\n/**\nFold all top-level foldable ranges. Note that, in most cases,\nfolding information will depend on the [syntax\ntree](https://codemirror.net/6/docs/ref/#language.syntaxTree), and folding everything may not work\nreliably when the document hasn't been fully parsed (either\nbecause the editor state was only just initialized, or because the\ndocument is so big that the parser decided not to parse it\nentirely).\n*/\nconst foldAll = view => {\n let { state } = view, effects = [];\n for (let pos = 0; pos < state.doc.length;) {\n let line = view.lineBlockAt(pos), range = foldable(state, line.from, line.to);\n if (range)\n effects.push(foldEffect.of(range));\n pos = (range ? view.lineBlockAt(range.to) : line).to + 1;\n }\n if (effects.length)\n view.dispatch({ effects: maybeEnable(view.state, effects) });\n return !!effects.length;\n};\n/**\nUnfold all folded code.\n*/\nconst unfoldAll = view => {\n let field = view.state.field(foldState, false);\n if (!field || !field.size)\n return false;\n let effects = [];\n field.between(0, view.state.doc.length, (from, to) => { effects.push(unfoldEffect.of({ from, to })); });\n view.dispatch({ effects });\n return true;\n};\n// Find the foldable region containing the given line, if one exists\nfunction foldableContainer(view, lineBlock) {\n // Look backwards through line blocks until we find a foldable region that\n // intersects with the line\n for (let line = lineBlock;;) {\n let foldableRegion = foldable(view.state, line.from, line.to);\n if (foldableRegion && foldableRegion.to > lineBlock.from)\n return foldableRegion;\n if (!line.from)\n return null;\n line = view.lineBlockAt(line.from - 1);\n }\n}\n/**\nToggle folding at cursors. Unfolds if there is an existing fold\nstarting in that line, tries to find a foldable range around it\notherwise.\n*/\nconst toggleFold = (view) => {\n let effects = [];\n for (let line of selectedLines(view)) {\n let folded = findFold(view.state, line.from, line.to);\n if (folded) {\n effects.push(unfoldEffect.of(folded), announceFold(view, folded, false));\n }\n else {\n let foldRange = foldableContainer(view, line);\n if (foldRange)\n effects.push(foldEffect.of(foldRange), announceFold(view, foldRange));\n }\n }\n if (effects.length > 0)\n view.dispatch({ effects: maybeEnable(view.state, effects) });\n return !!effects.length;\n};\n/**\nDefault fold-related key bindings.\n\n - Ctrl-Shift-[ (Cmd-Alt-[ on macOS): [`foldCode`](https://codemirror.net/6/docs/ref/#language.foldCode).\n - Ctrl-Shift-] (Cmd-Alt-] on macOS): [`unfoldCode`](https://codemirror.net/6/docs/ref/#language.unfoldCode).\n - Ctrl-Alt-[: [`foldAll`](https://codemirror.net/6/docs/ref/#language.foldAll).\n - Ctrl-Alt-]: [`unfoldAll`](https://codemirror.net/6/docs/ref/#language.unfoldAll).\n*/\nconst foldKeymap = [\n { key: \"Ctrl-Shift-[\", mac: \"Cmd-Alt-[\", run: foldCode },\n { key: \"Ctrl-Shift-]\", mac: \"Cmd-Alt-]\", run: unfoldCode },\n { key: \"Ctrl-Alt-[\", run: foldAll },\n { key: \"Ctrl-Alt-]\", run: unfoldAll }\n];\nconst defaultConfig = {\n placeholderDOM: null,\n preparePlaceholder: null,\n placeholderText: \"…\"\n};\nconst foldConfig = /*@__PURE__*/Facet.define({\n combine(values) { return combineConfig(values, defaultConfig); }\n});\n/**\nCreate an extension that configures code folding.\n*/\nfunction codeFolding(config) {\n let result = [foldState, baseTheme$1];\n if (config)\n result.push(foldConfig.of(config));\n return result;\n}\nfunction widgetToDOM(view, prepared) {\n let { state } = view, conf = state.facet(foldConfig);\n let onclick = (event) => {\n let line = view.lineBlockAt(view.posAtDOM(event.target));\n let folded = findFold(view.state, line.from, line.to);\n if (folded)\n view.dispatch({ effects: unfoldEffect.of(folded) });\n event.preventDefault();\n };\n if (conf.placeholderDOM)\n return conf.placeholderDOM(view, onclick, prepared);\n let element = document.createElement(\"span\");\n element.textContent = conf.placeholderText;\n element.setAttribute(\"aria-label\", state.phrase(\"folded code\"));\n element.title = state.phrase(\"unfold\");\n element.className = \"cm-foldPlaceholder\";\n element.onclick = onclick;\n return element;\n}\nconst foldWidget = /*@__PURE__*/Decoration.replace({ widget: /*@__PURE__*/new class extends WidgetType {\n toDOM(view) { return widgetToDOM(view, null); }\n } });\nclass PreparedFoldWidget extends WidgetType {\n constructor(value) {\n super();\n this.value = value;\n }\n eq(other) { return this.value == other.value; }\n toDOM(view) { return widgetToDOM(view, this.value); }\n}\nconst foldGutterDefaults = {\n openText: \"⌄\",\n closedText: \"›\",\n markerDOM: null,\n domEventHandlers: {},\n foldingChanged: () => false\n};\nclass FoldMarker extends GutterMarker {\n constructor(config, open) {\n super();\n this.config = config;\n this.open = open;\n }\n eq(other) { return this.config == other.config && this.open == other.open; }\n toDOM(view) {\n if (this.config.markerDOM)\n return this.config.markerDOM(this.open);\n let span = document.createElement(\"span\");\n span.textContent = this.open ? this.config.openText : this.config.closedText;\n span.title = view.state.phrase(this.open ? \"Fold line\" : \"Unfold line\");\n return span;\n }\n}\n/**\nCreate an extension that registers a fold gutter, which shows a\nfold status indicator before foldable lines (which can be clicked\nto fold or unfold the line).\n*/\nfunction foldGutter(config = {}) {\n let fullConfig = Object.assign(Object.assign({}, foldGutterDefaults), config);\n let canFold = new FoldMarker(fullConfig, true), canUnfold = new FoldMarker(fullConfig, false);\n let markers = ViewPlugin.fromClass(class {\n constructor(view) {\n this.from = view.viewport.from;\n this.markers = this.buildMarkers(view);\n }\n update(update) {\n if (update.docChanged || update.viewportChanged ||\n update.startState.facet(language) != update.state.facet(language) ||\n update.startState.field(foldState, false) != update.state.field(foldState, false) ||\n syntaxTree(update.startState) != syntaxTree(update.state) ||\n fullConfig.foldingChanged(update))\n this.markers = this.buildMarkers(update.view);\n }\n buildMarkers(view) {\n let builder = new RangeSetBuilder();\n for (let line of view.viewportLineBlocks) {\n let mark = findFold(view.state, line.from, line.to) ? canUnfold\n : foldable(view.state, line.from, line.to) ? canFold : null;\n if (mark)\n builder.add(line.from, line.from, mark);\n }\n return builder.finish();\n }\n });\n let { domEventHandlers } = fullConfig;\n return [\n markers,\n gutter({\n class: \"cm-foldGutter\",\n markers(view) { var _a; return ((_a = view.plugin(markers)) === null || _a === void 0 ? void 0 : _a.markers) || RangeSet.empty; },\n initialSpacer() {\n return new FoldMarker(fullConfig, false);\n },\n domEventHandlers: Object.assign(Object.assign({}, domEventHandlers), { click: (view, line, event) => {\n if (domEventHandlers.click && domEventHandlers.click(view, line, event))\n return true;\n let folded = findFold(view.state, line.from, line.to);\n if (folded) {\n view.dispatch({ effects: unfoldEffect.of(folded) });\n return true;\n }\n let range = foldable(view.state, line.from, line.to);\n if (range) {\n view.dispatch({ effects: foldEffect.of(range) });\n return true;\n }\n return false;\n } })\n }),\n codeFolding()\n ];\n}\nconst baseTheme$1 = /*@__PURE__*/EditorView.baseTheme({\n \".cm-foldPlaceholder\": {\n backgroundColor: \"#eee\",\n border: \"1px solid #ddd\",\n color: \"#888\",\n borderRadius: \".2em\",\n margin: \"0 1px\",\n padding: \"0 1px\",\n cursor: \"pointer\"\n },\n \".cm-foldGutter span\": {\n padding: \"0 1px\",\n cursor: \"pointer\"\n }\n});\n\n/**\nA highlight style associates CSS styles with higlighting\n[tags](https://lezer.codemirror.net/docs/ref#highlight.Tag).\n*/\nclass HighlightStyle {\n constructor(\n /**\n The tag styles used to create this highlight style.\n */\n specs, options) {\n this.specs = specs;\n let modSpec;\n function def(spec) {\n let cls = StyleModule.newName();\n (modSpec || (modSpec = Object.create(null)))[\".\" + cls] = spec;\n return cls;\n }\n const all = typeof options.all == \"string\" ? options.all : options.all ? def(options.all) : undefined;\n const scopeOpt = options.scope;\n this.scope = scopeOpt instanceof Language ? (type) => type.prop(languageDataProp) == scopeOpt.data\n : scopeOpt ? (type) => type == scopeOpt : undefined;\n this.style = tagHighlighter(specs.map(style => ({\n tag: style.tag,\n class: style.class || def(Object.assign({}, style, { tag: null }))\n })), {\n all,\n }).style;\n this.module = modSpec ? new StyleModule(modSpec) : null;\n this.themeType = options.themeType;\n }\n /**\n Create a highlighter style that associates the given styles to\n the given tags. The specs must be objects that hold a style tag\n or array of tags in their `tag` property, and either a single\n `class` property providing a static CSS class (for highlighter\n that rely on external styling), or a\n [`style-mod`](https://github.com/marijnh/style-mod#documentation)-style\n set of CSS properties (which define the styling for those tags).\n \n The CSS rules created for a highlighter will be emitted in the\n order of the spec's properties. That means that for elements that\n have multiple tags associated with them, styles defined further\n down in the list will have a higher CSS precedence than styles\n defined earlier.\n */\n static define(specs, options) {\n return new HighlightStyle(specs, options || {});\n }\n}\nconst highlighterFacet = /*@__PURE__*/Facet.define();\nconst fallbackHighlighter = /*@__PURE__*/Facet.define({\n combine(values) { return values.length ? [values[0]] : null; }\n});\nfunction getHighlighters(state) {\n let main = state.facet(highlighterFacet);\n return main.length ? main : state.facet(fallbackHighlighter);\n}\n/**\nWrap a highlighter in an editor extension that uses it to apply\nsyntax highlighting to the editor content.\n\nWhen multiple (non-fallback) styles are provided, the styling\napplied is the union of the classes they emit.\n*/\nfunction syntaxHighlighting(highlighter, options) {\n let ext = [treeHighlighter], themeType;\n if (highlighter instanceof HighlightStyle) {\n if (highlighter.module)\n ext.push(EditorView.styleModule.of(highlighter.module));\n themeType = highlighter.themeType;\n }\n if (options === null || options === void 0 ? void 0 : options.fallback)\n ext.push(fallbackHighlighter.of(highlighter));\n else if (themeType)\n ext.push(highlighterFacet.computeN([EditorView.darkTheme], state => {\n return state.facet(EditorView.darkTheme) == (themeType == \"dark\") ? [highlighter] : [];\n }));\n else\n ext.push(highlighterFacet.of(highlighter));\n return ext;\n}\n/**\nReturns the CSS classes (if any) that the highlighters active in\nthe state would assign to the given style\n[tags](https://lezer.codemirror.net/docs/ref#highlight.Tag) and\n(optional) language\n[scope](https://codemirror.net/6/docs/ref/#language.HighlightStyle^define^options.scope).\n*/\nfunction highlightingFor(state, tags, scope) {\n let highlighters = getHighlighters(state);\n let result = null;\n if (highlighters)\n for (let highlighter of highlighters) {\n if (!highlighter.scope || scope && highlighter.scope(scope)) {\n let cls = highlighter.style(tags);\n if (cls)\n result = result ? result + \" \" + cls : cls;\n }\n }\n return result;\n}\nclass TreeHighlighter {\n constructor(view) {\n this.markCache = Object.create(null);\n this.tree = syntaxTree(view.state);\n this.decorations = this.buildDeco(view, getHighlighters(view.state));\n }\n update(update) {\n let tree = syntaxTree(update.state), highlighters = getHighlighters(update.state);\n let styleChange = highlighters != getHighlighters(update.startState);\n if (tree.length < update.view.viewport.to && !styleChange && tree.type == this.tree.type) {\n this.decorations = this.decorations.map(update.changes);\n }\n else if (tree != this.tree || update.viewportChanged || styleChange) {\n this.tree = tree;\n this.decorations = this.buildDeco(update.view, highlighters);\n }\n }\n buildDeco(view, highlighters) {\n if (!highlighters || !this.tree.length)\n return Decoration.none;\n let builder = new RangeSetBuilder();\n for (let { from, to } of view.visibleRanges) {\n highlightTree(this.tree, highlighters, (from, to, style) => {\n builder.add(from, to, this.markCache[style] || (this.markCache[style] = Decoration.mark({ class: style })));\n }, from, to);\n }\n return builder.finish();\n }\n}\nconst treeHighlighter = /*@__PURE__*/Prec.high(/*@__PURE__*/ViewPlugin.fromClass(TreeHighlighter, {\n decorations: v => v.decorations\n}));\n/**\nA default highlight style (works well with light themes).\n*/\nconst defaultHighlightStyle = /*@__PURE__*/HighlightStyle.define([\n { tag: tags.meta,\n color: \"#404740\" },\n { tag: tags.link,\n textDecoration: \"underline\" },\n { tag: tags.heading,\n textDecoration: \"underline\",\n fontWeight: \"bold\" },\n { tag: tags.emphasis,\n fontStyle: \"italic\" },\n { tag: tags.strong,\n fontWeight: \"bold\" },\n { tag: tags.strikethrough,\n textDecoration: \"line-through\" },\n { tag: tags.keyword,\n color: \"#708\" },\n { tag: [tags.atom, tags.bool, tags.url, tags.contentSeparator, tags.labelName],\n color: \"#219\" },\n { tag: [tags.literal, tags.inserted],\n color: \"#164\" },\n { tag: [tags.string, tags.deleted],\n color: \"#a11\" },\n { tag: [tags.regexp, tags.escape, /*@__PURE__*/tags.special(tags.string)],\n color: \"#e40\" },\n { tag: /*@__PURE__*/tags.definition(tags.variableName),\n color: \"#00f\" },\n { tag: /*@__PURE__*/tags.local(tags.variableName),\n color: \"#30a\" },\n { tag: [tags.typeName, tags.namespace],\n color: \"#085\" },\n { tag: tags.className,\n color: \"#167\" },\n { tag: [/*@__PURE__*/tags.special(tags.variableName), tags.macroName],\n color: \"#256\" },\n { tag: /*@__PURE__*/tags.definition(tags.propertyName),\n color: \"#00c\" },\n { tag: tags.comment,\n color: \"#940\" },\n { tag: tags.invalid,\n color: \"#f00\" }\n]);\n\nconst baseTheme = /*@__PURE__*/EditorView.baseTheme({\n \"&.cm-focused .cm-matchingBracket\": { backgroundColor: \"#328c8252\" },\n \"&.cm-focused .cm-nonmatchingBracket\": { backgroundColor: \"#bb555544\" }\n});\nconst DefaultScanDist = 10000, DefaultBrackets = \"()[]{}\";\nconst bracketMatchingConfig = /*@__PURE__*/Facet.define({\n combine(configs) {\n return combineConfig(configs, {\n afterCursor: true,\n brackets: DefaultBrackets,\n maxScanDistance: DefaultScanDist,\n renderMatch: defaultRenderMatch\n });\n }\n});\nconst matchingMark = /*@__PURE__*/Decoration.mark({ class: \"cm-matchingBracket\" }), nonmatchingMark = /*@__PURE__*/Decoration.mark({ class: \"cm-nonmatchingBracket\" });\nfunction defaultRenderMatch(match) {\n let decorations = [];\n let mark = match.matched ? matchingMark : nonmatchingMark;\n decorations.push(mark.range(match.start.from, match.start.to));\n if (match.end)\n decorations.push(mark.range(match.end.from, match.end.to));\n return decorations;\n}\nconst bracketMatchingState = /*@__PURE__*/StateField.define({\n create() { return Decoration.none; },\n update(deco, tr) {\n if (!tr.docChanged && !tr.selection)\n return deco;\n let decorations = [];\n let config = tr.state.facet(bracketMatchingConfig);\n for (let range of tr.state.selection.ranges) {\n if (!range.empty)\n continue;\n let match = matchBrackets(tr.state, range.head, -1, config)\n || (range.head > 0 && matchBrackets(tr.state, range.head - 1, 1, config))\n || (config.afterCursor &&\n (matchBrackets(tr.state, range.head, 1, config) ||\n (range.head < tr.state.doc.length && matchBrackets(tr.state, range.head + 1, -1, config))));\n if (match)\n decorations = decorations.concat(config.renderMatch(match, tr.state));\n }\n return Decoration.set(decorations, true);\n },\n provide: f => EditorView.decorations.from(f)\n});\nconst bracketMatchingUnique = [\n bracketMatchingState,\n baseTheme\n];\n/**\nCreate an extension that enables bracket matching. Whenever the\ncursor is next to a bracket, that bracket and the one it matches\nare highlighted. Or, when no matching bracket is found, another\nhighlighting style is used to indicate this.\n*/\nfunction bracketMatching(config = {}) {\n return [bracketMatchingConfig.of(config), bracketMatchingUnique];\n}\n/**\nWhen larger syntax nodes, such as HTML tags, are marked as\nopening/closing, it can be a bit messy to treat the whole node as\na matchable bracket. This node prop allows you to define, for such\na node, a ‘handle’—the part of the node that is highlighted, and\nthat the cursor must be on to activate highlighting in the first\nplace.\n*/\nconst bracketMatchingHandle = /*@__PURE__*/new NodeProp();\nfunction matchingNodes(node, dir, brackets) {\n let byProp = node.prop(dir < 0 ? NodeProp.openedBy : NodeProp.closedBy);\n if (byProp)\n return byProp;\n if (node.name.length == 1) {\n let index = brackets.indexOf(node.name);\n if (index > -1 && index % 2 == (dir < 0 ? 1 : 0))\n return [brackets[index + dir]];\n }\n return null;\n}\nfunction findHandle(node) {\n let hasHandle = node.type.prop(bracketMatchingHandle);\n return hasHandle ? hasHandle(node.node) : node;\n}\n/**\nFind the matching bracket for the token at `pos`, scanning\ndirection `dir`. Only the `brackets` and `maxScanDistance`\nproperties are used from `config`, if given. Returns null if no\nbracket was found at `pos`, or a match result otherwise.\n*/\nfunction matchBrackets(state, pos, dir, config = {}) {\n let maxScanDistance = config.maxScanDistance || DefaultScanDist, brackets = config.brackets || DefaultBrackets;\n let tree = syntaxTree(state), node = tree.resolveInner(pos, dir);\n for (let cur = node; cur; cur = cur.parent) {\n let matches = matchingNodes(cur.type, dir, brackets);\n if (matches && cur.from < cur.to) {\n let handle = findHandle(cur);\n if (handle && (dir > 0 ? pos >= handle.from && pos < handle.to : pos > handle.from && pos <= handle.to))\n return matchMarkedBrackets(state, pos, dir, cur, handle, matches, brackets);\n }\n }\n return matchPlainBrackets(state, pos, dir, tree, node.type, maxScanDistance, brackets);\n}\nfunction matchMarkedBrackets(_state, _pos, dir, token, handle, matching, brackets) {\n let parent = token.parent, firstToken = { from: handle.from, to: handle.to };\n let depth = 0, cursor = parent === null || parent === void 0 ? void 0 : parent.cursor();\n if (cursor && (dir < 0 ? cursor.childBefore(token.from) : cursor.childAfter(token.to)))\n do {\n if (dir < 0 ? cursor.to <= token.from : cursor.from >= token.to) {\n if (depth == 0 && matching.indexOf(cursor.type.name) > -1 && cursor.from < cursor.to) {\n let endHandle = findHandle(cursor);\n return { start: firstToken, end: endHandle ? { from: endHandle.from, to: endHandle.to } : undefined, matched: true };\n }\n else if (matchingNodes(cursor.type, dir, brackets)) {\n depth++;\n }\n else if (matchingNodes(cursor.type, -dir, brackets)) {\n if (depth == 0) {\n let endHandle = findHandle(cursor);\n return {\n start: firstToken,\n end: endHandle && endHandle.from < endHandle.to ? { from: endHandle.from, to: endHandle.to } : undefined,\n matched: false\n };\n }\n depth--;\n }\n }\n } while (dir < 0 ? cursor.prevSibling() : cursor.nextSibling());\n return { start: firstToken, matched: false };\n}\nfunction matchPlainBrackets(state, pos, dir, tree, tokenType, maxScanDistance, brackets) {\n let startCh = dir < 0 ? state.sliceDoc(pos - 1, pos) : state.sliceDoc(pos, pos + 1);\n let bracket = brackets.indexOf(startCh);\n if (bracket < 0 || (bracket % 2 == 0) != (dir > 0))\n return null;\n let startToken = { from: dir < 0 ? pos - 1 : pos, to: dir > 0 ? pos + 1 : pos };\n let iter = state.doc.iterRange(pos, dir > 0 ? state.doc.length : 0), depth = 0;\n for (let distance = 0; !(iter.next()).done && distance <= maxScanDistance;) {\n let text = iter.value;\n if (dir < 0)\n distance += text.length;\n let basePos = pos + distance * dir;\n for (let pos = dir > 0 ? 0 : text.length - 1, end = dir > 0 ? text.length : -1; pos != end; pos += dir) {\n let found = brackets.indexOf(text[pos]);\n if (found < 0 || tree.resolveInner(basePos + pos, 1).type != tokenType)\n continue;\n if ((found % 2 == 0) == (dir > 0)) {\n depth++;\n }\n else if (depth == 1) { // Closing\n return { start: startToken, end: { from: basePos + pos, to: basePos + pos + 1 }, matched: (found >> 1) == (bracket >> 1) };\n }\n else {\n depth--;\n }\n }\n if (dir > 0)\n distance += text.length;\n }\n return iter.done ? { start: startToken, matched: false } : null;\n}\n\n// Counts the column offset in a string, taking tabs into account.\n// Used mostly to find indentation.\nfunction countCol(string, end, tabSize, startIndex = 0, startValue = 0) {\n if (end == null) {\n end = string.search(/[^\\s\\u00a0]/);\n if (end == -1)\n end = string.length;\n }\n let n = startValue;\n for (let i = startIndex; i < end; i++) {\n if (string.charCodeAt(i) == 9)\n n += tabSize - (n % tabSize);\n else\n n++;\n }\n return n;\n}\n/**\nEncapsulates a single line of input. Given to stream syntax code,\nwhich uses it to tokenize the content.\n*/\nclass StringStream {\n /**\n Create a stream.\n */\n constructor(\n /**\n The line.\n */\n string, tabSize, \n /**\n The current indent unit size.\n */\n indentUnit, overrideIndent) {\n this.string = string;\n this.tabSize = tabSize;\n this.indentUnit = indentUnit;\n this.overrideIndent = overrideIndent;\n /**\n The current position on the line.\n */\n this.pos = 0;\n /**\n The start position of the current token.\n */\n this.start = 0;\n this.lastColumnPos = 0;\n this.lastColumnValue = 0;\n }\n /**\n True if we are at the end of the line.\n */\n eol() { return this.pos >= this.string.length; }\n /**\n True if we are at the start of the line.\n */\n sol() { return this.pos == 0; }\n /**\n Get the next code unit after the current position, or undefined\n if we're at the end of the line.\n */\n peek() { return this.string.charAt(this.pos) || undefined; }\n /**\n Read the next code unit and advance `this.pos`.\n */\n next() {\n if (this.pos < this.string.length)\n return this.string.charAt(this.pos++);\n }\n /**\n Match the next character against the given string, regular\n expression, or predicate. Consume and return it if it matches.\n */\n eat(match) {\n let ch = this.string.charAt(this.pos);\n let ok;\n if (typeof match == \"string\")\n ok = ch == match;\n else\n ok = ch && (match instanceof RegExp ? match.test(ch) : match(ch));\n if (ok) {\n ++this.pos;\n return ch;\n }\n }\n /**\n Continue matching characters that match the given string,\n regular expression, or predicate function. Return true if any\n characters were consumed.\n */\n eatWhile(match) {\n let start = this.pos;\n while (this.eat(match)) { }\n return this.pos > start;\n }\n /**\n Consume whitespace ahead of `this.pos`. Return true if any was\n found.\n */\n eatSpace() {\n let start = this.pos;\n while (/[\\s\\u00a0]/.test(this.string.charAt(this.pos)))\n ++this.pos;\n return this.pos > start;\n }\n /**\n Move to the end of the line.\n */\n skipToEnd() { this.pos = this.string.length; }\n /**\n Move to directly before the given character, if found on the\n current line.\n */\n skipTo(ch) {\n let found = this.string.indexOf(ch, this.pos);\n if (found > -1) {\n this.pos = found;\n return true;\n }\n }\n /**\n Move back `n` characters.\n */\n backUp(n) { this.pos -= n; }\n /**\n Get the column position at `this.pos`.\n */\n column() {\n if (this.lastColumnPos < this.start) {\n this.lastColumnValue = countCol(this.string, this.start, this.tabSize, this.lastColumnPos, this.lastColumnValue);\n this.lastColumnPos = this.start;\n }\n return this.lastColumnValue;\n }\n /**\n Get the indentation column of the current line.\n */\n indentation() {\n var _a;\n return (_a = this.overrideIndent) !== null && _a !== void 0 ? _a : countCol(this.string, null, this.tabSize);\n }\n /**\n Match the input against the given string or regular expression\n (which should start with a `^`). Return true or the regexp match\n if it matches.\n \n Unless `consume` is set to `false`, this will move `this.pos`\n past the matched text.\n \n When matching a string `caseInsensitive` can be set to true to\n make the match case-insensitive.\n */\n match(pattern, consume, caseInsensitive) {\n if (typeof pattern == \"string\") {\n let cased = (str) => caseInsensitive ? str.toLowerCase() : str;\n let substr = this.string.substr(this.pos, pattern.length);\n if (cased(substr) == cased(pattern)) {\n if (consume !== false)\n this.pos += pattern.length;\n return true;\n }\n else\n return null;\n }\n else {\n let match = this.string.slice(this.pos).match(pattern);\n if (match && match.index > 0)\n return null;\n if (match && consume !== false)\n this.pos += match[0].length;\n return match;\n }\n }\n /**\n Get the current token.\n */\n current() { return this.string.slice(this.start, this.pos); }\n}\n\nfunction fullParser(spec) {\n return {\n name: spec.name || \"\",\n token: spec.token,\n blankLine: spec.blankLine || (() => { }),\n startState: spec.startState || (() => true),\n copyState: spec.copyState || defaultCopyState,\n indent: spec.indent || (() => null),\n languageData: spec.languageData || {},\n tokenTable: spec.tokenTable || noTokens\n };\n}\nfunction defaultCopyState(state) {\n if (typeof state != \"object\")\n return state;\n let newState = {};\n for (let prop in state) {\n let val = state[prop];\n newState[prop] = (val instanceof Array ? val.slice() : val);\n }\n return newState;\n}\nconst IndentedFrom = /*@__PURE__*/new WeakMap();\n/**\nA [language](https://codemirror.net/6/docs/ref/#language.Language) class based on a CodeMirror\n5-style [streaming parser](https://codemirror.net/6/docs/ref/#language.StreamParser).\n*/\nclass StreamLanguage extends Language {\n constructor(parser) {\n let data = defineLanguageFacet(parser.languageData);\n let p = fullParser(parser), self;\n let impl = new class extends Parser {\n createParse(input, fragments, ranges) {\n return new Parse(self, input, fragments, ranges);\n }\n };\n super(data, impl, [indentService.of((cx, pos) => this.getIndent(cx, pos))], parser.name);\n this.topNode = docID(data);\n self = this;\n this.streamParser = p;\n this.stateAfter = new NodeProp({ perNode: true });\n this.tokenTable = parser.tokenTable ? new TokenTable(p.tokenTable) : defaultTokenTable;\n }\n /**\n Define a stream language.\n */\n static define(spec) { return new StreamLanguage(spec); }\n getIndent(cx, pos) {\n let tree = syntaxTree(cx.state), at = tree.resolve(pos);\n while (at && at.type != this.topNode)\n at = at.parent;\n if (!at)\n return null;\n let from = undefined;\n let { overrideIndentation } = cx.options;\n if (overrideIndentation) {\n from = IndentedFrom.get(cx.state);\n if (from != null && from < pos - 1e4)\n from = undefined;\n }\n let start = findState(this, tree, 0, at.from, from !== null && from !== void 0 ? from : pos), statePos, state;\n if (start) {\n state = start.state;\n statePos = start.pos + 1;\n }\n else {\n state = this.streamParser.startState(cx.unit);\n statePos = 0;\n }\n if (pos - statePos > 10000 /* C.MaxIndentScanDist */)\n return null;\n while (statePos < pos) {\n let line = cx.state.doc.lineAt(statePos), end = Math.min(pos, line.to);\n if (line.length) {\n let indentation = overrideIndentation ? overrideIndentation(line.from) : -1;\n let stream = new StringStream(line.text, cx.state.tabSize, cx.unit, indentation < 0 ? undefined : indentation);\n while (stream.pos < end - line.from)\n readToken(this.streamParser.token, stream, state);\n }\n else {\n this.streamParser.blankLine(state, cx.unit);\n }\n if (end == pos)\n break;\n statePos = line.to + 1;\n }\n let line = cx.lineAt(pos);\n if (overrideIndentation && from == null)\n IndentedFrom.set(cx.state, line.from);\n return this.streamParser.indent(state, /^\\s*(.*)/.exec(line.text)[1], cx);\n }\n get allowsNesting() { return false; }\n}\nfunction findState(lang, tree, off, startPos, before) {\n let state = off >= startPos && off + tree.length <= before && tree.prop(lang.stateAfter);\n if (state)\n return { state: lang.streamParser.copyState(state), pos: off + tree.length };\n for (let i = tree.children.length - 1; i >= 0; i--) {\n let child = tree.children[i], pos = off + tree.positions[i];\n let found = child instanceof Tree && pos < before && findState(lang, child, pos, startPos, before);\n if (found)\n return found;\n }\n return null;\n}\nfunction cutTree(lang, tree, from, to, inside) {\n if (inside && from <= 0 && to >= tree.length)\n return tree;\n if (!inside && tree.type == lang.topNode)\n inside = true;\n for (let i = tree.children.length - 1; i >= 0; i--) {\n let pos = tree.positions[i], child = tree.children[i], inner;\n if (pos < to && child instanceof Tree) {\n if (!(inner = cutTree(lang, child, from - pos, to - pos, inside)))\n break;\n return !inside ? inner\n : new Tree(tree.type, tree.children.slice(0, i).concat(inner), tree.positions.slice(0, i + 1), pos + inner.length);\n }\n }\n return null;\n}\nfunction findStartInFragments(lang, fragments, startPos, editorState) {\n for (let f of fragments) {\n let from = f.from + (f.openStart ? 25 : 0), to = f.to - (f.openEnd ? 25 : 0);\n let found = from <= startPos && to > startPos && findState(lang, f.tree, 0 - f.offset, startPos, to), tree;\n if (found && (tree = cutTree(lang, f.tree, startPos + f.offset, found.pos + f.offset, false)))\n return { state: found.state, tree };\n }\n return { state: lang.streamParser.startState(editorState ? getIndentUnit(editorState) : 4), tree: Tree.empty };\n}\nclass Parse {\n constructor(lang, input, fragments, ranges) {\n this.lang = lang;\n this.input = input;\n this.fragments = fragments;\n this.ranges = ranges;\n this.stoppedAt = null;\n this.chunks = [];\n this.chunkPos = [];\n this.chunk = [];\n this.chunkReused = undefined;\n this.rangeIndex = 0;\n this.to = ranges[ranges.length - 1].to;\n let context = ParseContext.get(), from = ranges[0].from;\n let { state, tree } = findStartInFragments(lang, fragments, from, context === null || context === void 0 ? void 0 : context.state);\n this.state = state;\n this.parsedPos = this.chunkStart = from + tree.length;\n for (let i = 0; i < tree.children.length; i++) {\n this.chunks.push(tree.children[i]);\n this.chunkPos.push(tree.positions[i]);\n }\n if (context && this.parsedPos < context.viewport.from - 100000 /* C.MaxDistanceBeforeViewport */) {\n this.state = this.lang.streamParser.startState(getIndentUnit(context.state));\n context.skipUntilInView(this.parsedPos, context.viewport.from);\n this.parsedPos = context.viewport.from;\n }\n this.moveRangeIndex();\n }\n advance() {\n let context = ParseContext.get();\n let parseEnd = this.stoppedAt == null ? this.to : Math.min(this.to, this.stoppedAt);\n let end = Math.min(parseEnd, this.chunkStart + 2048 /* C.ChunkSize */);\n if (context)\n end = Math.min(end, context.viewport.to);\n while (this.parsedPos < end)\n this.parseLine(context);\n if (this.chunkStart < this.parsedPos)\n this.finishChunk();\n if (this.parsedPos >= parseEnd)\n return this.finish();\n if (context && this.parsedPos >= context.viewport.to) {\n context.skipUntilInView(this.parsedPos, parseEnd);\n return this.finish();\n }\n return null;\n }\n stopAt(pos) {\n this.stoppedAt = pos;\n }\n lineAfter(pos) {\n let chunk = this.input.chunk(pos);\n if (!this.input.lineChunks) {\n let eol = chunk.indexOf(\"\\n\");\n if (eol > -1)\n chunk = chunk.slice(0, eol);\n }\n else if (chunk == \"\\n\") {\n chunk = \"\";\n }\n return pos + chunk.length <= this.to ? chunk : chunk.slice(0, this.to - pos);\n }\n nextLine() {\n let from = this.parsedPos, line = this.lineAfter(from), end = from + line.length;\n for (let index = this.rangeIndex;;) {\n let rangeEnd = this.ranges[index].to;\n if (rangeEnd >= end)\n break;\n line = line.slice(0, rangeEnd - (end - line.length));\n index++;\n if (index == this.ranges.length)\n break;\n let rangeStart = this.ranges[index].from;\n let after = this.lineAfter(rangeStart);\n line += after;\n end = rangeStart + after.length;\n }\n return { line, end };\n }\n skipGapsTo(pos, offset, side) {\n for (;;) {\n let end = this.ranges[this.rangeIndex].to, offPos = pos + offset;\n if (side > 0 ? end > offPos : end >= offPos)\n break;\n let start = this.ranges[++this.rangeIndex].from;\n offset += start - end;\n }\n return offset;\n }\n moveRangeIndex() {\n while (this.ranges[this.rangeIndex].to < this.parsedPos)\n this.rangeIndex++;\n }\n emitToken(id, from, to, size, offset) {\n if (this.ranges.length > 1) {\n offset = this.skipGapsTo(from, offset, 1);\n from += offset;\n let len0 = this.chunk.length;\n offset = this.skipGapsTo(to, offset, -1);\n to += offset;\n size += this.chunk.length - len0;\n }\n this.chunk.push(id, from, to, size);\n return offset;\n }\n parseLine(context) {\n let { line, end } = this.nextLine(), offset = 0, { streamParser } = this.lang;\n let stream = new StringStream(line, context ? context.state.tabSize : 4, context ? getIndentUnit(context.state) : 2);\n if (stream.eol()) {\n streamParser.blankLine(this.state, stream.indentUnit);\n }\n else {\n while (!stream.eol()) {\n let token = readToken(streamParser.token, stream, this.state);\n if (token)\n offset = this.emitToken(this.lang.tokenTable.resolve(token), this.parsedPos + stream.start, this.parsedPos + stream.pos, 4, offset);\n if (stream.start > 10000 /* C.MaxLineLength */)\n break;\n }\n }\n this.parsedPos = end;\n this.moveRangeIndex();\n if (this.parsedPos < this.to)\n this.parsedPos++;\n }\n finishChunk() {\n let tree = Tree.build({\n buffer: this.chunk,\n start: this.chunkStart,\n length: this.parsedPos - this.chunkStart,\n nodeSet,\n topID: 0,\n maxBufferLength: 2048 /* C.ChunkSize */,\n reused: this.chunkReused\n });\n tree = new Tree(tree.type, tree.children, tree.positions, tree.length, [[this.lang.stateAfter, this.lang.streamParser.copyState(this.state)]]);\n this.chunks.push(tree);\n this.chunkPos.push(this.chunkStart - this.ranges[0].from);\n this.chunk = [];\n this.chunkReused = undefined;\n this.chunkStart = this.parsedPos;\n }\n finish() {\n return new Tree(this.lang.topNode, this.chunks, this.chunkPos, this.parsedPos - this.ranges[0].from).balance();\n }\n}\nfunction readToken(token, stream, state) {\n stream.start = stream.pos;\n for (let i = 0; i < 10; i++) {\n let result = token(stream, state);\n if (stream.pos > stream.start)\n return result;\n }\n throw new Error(\"Stream parser failed to advance stream.\");\n}\nconst noTokens = /*@__PURE__*/Object.create(null);\nconst typeArray = [NodeType.none];\nconst nodeSet = /*@__PURE__*/new NodeSet(typeArray);\nconst warned = [];\nconst defaultTable = /*@__PURE__*/Object.create(null);\nfor (let [legacyName, name] of [\n [\"variable\", \"variableName\"],\n [\"variable-2\", \"variableName.special\"],\n [\"string-2\", \"string.special\"],\n [\"def\", \"variableName.definition\"],\n [\"tag\", \"tagName\"],\n [\"attribute\", \"attributeName\"],\n [\"type\", \"typeName\"],\n [\"builtin\", \"variableName.standard\"],\n [\"qualifier\", \"modifier\"],\n [\"error\", \"invalid\"],\n [\"header\", \"heading\"],\n [\"property\", \"propertyName\"]\n])\n defaultTable[legacyName] = /*@__PURE__*/createTokenType(noTokens, name);\nclass TokenTable {\n constructor(extra) {\n this.extra = extra;\n this.table = Object.assign(Object.create(null), defaultTable);\n }\n resolve(tag) {\n return !tag ? 0 : this.table[tag] || (this.table[tag] = createTokenType(this.extra, tag));\n }\n}\nconst defaultTokenTable = /*@__PURE__*/new TokenTable(noTokens);\nfunction warnForPart(part, msg) {\n if (warned.indexOf(part) > -1)\n return;\n warned.push(part);\n console.warn(msg);\n}\nfunction createTokenType(extra, tagStr) {\n let tags$1 = [];\n for (let name of tagStr.split(\" \")) {\n let found = [];\n for (let part of name.split(\".\")) {\n let value = (extra[part] || tags[part]);\n if (!value) {\n warnForPart(part, `Unknown highlighting tag ${part}`);\n }\n else if (typeof value == \"function\") {\n if (!found.length)\n warnForPart(part, `Modifier ${part} used at start of tag`);\n else\n found = found.map(value);\n }\n else {\n if (found.length)\n warnForPart(part, `Tag ${part} used as modifier`);\n else\n found = Array.isArray(value) ? value : [value];\n }\n }\n for (let tag of found)\n tags$1.push(tag);\n }\n if (!tags$1.length)\n return 0;\n let name = tagStr.replace(/ /g, \"_\"), type = NodeType.define({\n id: typeArray.length,\n name,\n props: [styleTags({ [name]: tags$1 })]\n });\n typeArray.push(type);\n return type.id;\n}\nfunction docID(data) {\n let type = NodeType.define({ id: typeArray.length, name: \"Document\", props: [languageDataProp.add(() => data)], top: true });\n typeArray.push(type);\n return type;\n}\n\nexport { DocInput, HighlightStyle, IndentContext, LRLanguage, Language, LanguageDescription, LanguageSupport, ParseContext, StreamLanguage, StringStream, TreeIndentContext, bracketMatching, bracketMatchingHandle, codeFolding, continuedIndent, defaultHighlightStyle, defineLanguageFacet, delimitedIndent, ensureSyntaxTree, flatIndent, foldAll, foldCode, foldEffect, foldGutter, foldInside, foldKeymap, foldNodeProp, foldService, foldState, foldable, foldedRanges, forceParsing, getIndentUnit, getIndentation, highlightingFor, indentNodeProp, indentOnInput, indentRange, indentService, indentString, indentUnit, language, languageDataProp, matchBrackets, sublanguageProp, syntaxHighlighting, syntaxParserRunning, syntaxTree, syntaxTreeAvailable, toggleFold, unfoldAll, unfoldCode, unfoldEffect };\n","/**\nThe data structure for documents. @nonabstract\n*/\nclass Text {\n /**\n Get the line description around the given position.\n */\n lineAt(pos) {\n if (pos < 0 || pos > this.length)\n throw new RangeError(`Invalid position ${pos} in document of length ${this.length}`);\n return this.lineInner(pos, false, 1, 0);\n }\n /**\n Get the description for the given (1-based) line number.\n */\n line(n) {\n if (n < 1 || n > this.lines)\n throw new RangeError(`Invalid line number ${n} in ${this.lines}-line document`);\n return this.lineInner(n, true, 1, 0);\n }\n /**\n Replace a range of the text with the given content.\n */\n replace(from, to, text) {\n let parts = [];\n this.decompose(0, from, parts, 2 /* Open.To */);\n if (text.length)\n text.decompose(0, text.length, parts, 1 /* Open.From */ | 2 /* Open.To */);\n this.decompose(to, this.length, parts, 1 /* Open.From */);\n return TextNode.from(parts, this.length - (to - from) + text.length);\n }\n /**\n Append another document to this one.\n */\n append(other) {\n return this.replace(this.length, this.length, other);\n }\n /**\n Retrieve the text between the given points.\n */\n slice(from, to = this.length) {\n let parts = [];\n this.decompose(from, to, parts, 0);\n return TextNode.from(parts, to - from);\n }\n /**\n Test whether this text is equal to another instance.\n */\n eq(other) {\n if (other == this)\n return true;\n if (other.length != this.length || other.lines != this.lines)\n return false;\n let start = this.scanIdentical(other, 1), end = this.length - this.scanIdentical(other, -1);\n let a = new RawTextCursor(this), b = new RawTextCursor(other);\n for (let skip = start, pos = start;;) {\n a.next(skip);\n b.next(skip);\n skip = 0;\n if (a.lineBreak != b.lineBreak || a.done != b.done || a.value != b.value)\n return false;\n pos += a.value.length;\n if (a.done || pos >= end)\n return true;\n }\n }\n /**\n Iterate over the text. When `dir` is `-1`, iteration happens\n from end to start. This will return lines and the breaks between\n them as separate strings.\n */\n iter(dir = 1) { return new RawTextCursor(this, dir); }\n /**\n Iterate over a range of the text. When `from` > `to`, the\n iterator will run in reverse.\n */\n iterRange(from, to = this.length) { return new PartialTextCursor(this, from, to); }\n /**\n Return a cursor that iterates over the given range of lines,\n _without_ returning the line breaks between, and yielding empty\n strings for empty lines.\n \n When `from` and `to` are given, they should be 1-based line numbers.\n */\n iterLines(from, to) {\n let inner;\n if (from == null) {\n inner = this.iter();\n }\n else {\n if (to == null)\n to = this.lines + 1;\n let start = this.line(from).from;\n inner = this.iterRange(start, Math.max(start, to == this.lines + 1 ? this.length : to <= 1 ? 0 : this.line(to - 1).to));\n }\n return new LineCursor(inner);\n }\n /**\n Return the document as a string, using newline characters to\n separate lines.\n */\n toString() { return this.sliceString(0); }\n /**\n Convert the document to an array of lines (which can be\n deserialized again via [`Text.of`](https://codemirror.net/6/docs/ref/#state.Text^of)).\n */\n toJSON() {\n let lines = [];\n this.flatten(lines);\n return lines;\n }\n /**\n @internal\n */\n constructor() { }\n /**\n Create a `Text` instance for the given array of lines.\n */\n static of(text) {\n if (text.length == 0)\n throw new RangeError(\"A document must have at least one line\");\n if (text.length == 1 && !text[0])\n return Text.empty;\n return text.length <= 32 /* Tree.Branch */ ? new TextLeaf(text) : TextNode.from(TextLeaf.split(text, []));\n }\n}\n// Leaves store an array of line strings. There are always line breaks\n// between these strings. Leaves are limited in size and have to be\n// contained in TextNode instances for bigger documents.\nclass TextLeaf extends Text {\n constructor(text, length = textLength(text)) {\n super();\n this.text = text;\n this.length = length;\n }\n get lines() { return this.text.length; }\n get children() { return null; }\n lineInner(target, isLine, line, offset) {\n for (let i = 0;; i++) {\n let string = this.text[i], end = offset + string.length;\n if ((isLine ? line : end) >= target)\n return new Line(offset, end, line, string);\n offset = end + 1;\n line++;\n }\n }\n decompose(from, to, target, open) {\n let text = from <= 0 && to >= this.length ? this\n : new TextLeaf(sliceText(this.text, from, to), Math.min(to, this.length) - Math.max(0, from));\n if (open & 1 /* Open.From */) {\n let prev = target.pop();\n let joined = appendText(text.text, prev.text.slice(), 0, text.length);\n if (joined.length <= 32 /* Tree.Branch */) {\n target.push(new TextLeaf(joined, prev.length + text.length));\n }\n else {\n let mid = joined.length >> 1;\n target.push(new TextLeaf(joined.slice(0, mid)), new TextLeaf(joined.slice(mid)));\n }\n }\n else {\n target.push(text);\n }\n }\n replace(from, to, text) {\n if (!(text instanceof TextLeaf))\n return super.replace(from, to, text);\n let lines = appendText(this.text, appendText(text.text, sliceText(this.text, 0, from)), to);\n let newLen = this.length + text.length - (to - from);\n if (lines.length <= 32 /* Tree.Branch */)\n return new TextLeaf(lines, newLen);\n return TextNode.from(TextLeaf.split(lines, []), newLen);\n }\n sliceString(from, to = this.length, lineSep = \"\\n\") {\n let result = \"\";\n for (let pos = 0, i = 0; pos <= to && i < this.text.length; i++) {\n let line = this.text[i], end = pos + line.length;\n if (pos > from && i)\n result += lineSep;\n if (from < end && to > pos)\n result += line.slice(Math.max(0, from - pos), to - pos);\n pos = end + 1;\n }\n return result;\n }\n flatten(target) {\n for (let line of this.text)\n target.push(line);\n }\n scanIdentical() { return 0; }\n static split(text, target) {\n let part = [], len = -1;\n for (let line of text) {\n part.push(line);\n len += line.length + 1;\n if (part.length == 32 /* Tree.Branch */) {\n target.push(new TextLeaf(part, len));\n part = [];\n len = -1;\n }\n }\n if (len > -1)\n target.push(new TextLeaf(part, len));\n return target;\n }\n}\n// Nodes provide the tree structure of the `Text` type. They store a\n// number of other nodes or leaves, taking care to balance themselves\n// on changes. There are implied line breaks _between_ the children of\n// a node (but not before the first or after the last child).\nclass TextNode extends Text {\n constructor(children, length) {\n super();\n this.children = children;\n this.length = length;\n this.lines = 0;\n for (let child of children)\n this.lines += child.lines;\n }\n lineInner(target, isLine, line, offset) {\n for (let i = 0;; i++) {\n let child = this.children[i], end = offset + child.length, endLine = line + child.lines - 1;\n if ((isLine ? endLine : end) >= target)\n return child.lineInner(target, isLine, line, offset);\n offset = end + 1;\n line = endLine + 1;\n }\n }\n decompose(from, to, target, open) {\n for (let i = 0, pos = 0; pos <= to && i < this.children.length; i++) {\n let child = this.children[i], end = pos + child.length;\n if (from <= end && to >= pos) {\n let childOpen = open & ((pos <= from ? 1 /* Open.From */ : 0) | (end >= to ? 2 /* Open.To */ : 0));\n if (pos >= from && end <= to && !childOpen)\n target.push(child);\n else\n child.decompose(from - pos, to - pos, target, childOpen);\n }\n pos = end + 1;\n }\n }\n replace(from, to, text) {\n if (text.lines < this.lines)\n for (let i = 0, pos = 0; i < this.children.length; i++) {\n let child = this.children[i], end = pos + child.length;\n // Fast path: if the change only affects one child and the\n // child's size remains in the acceptable range, only update\n // that child\n if (from >= pos && to <= end) {\n let updated = child.replace(from - pos, to - pos, text);\n let totalLines = this.lines - child.lines + updated.lines;\n if (updated.lines < (totalLines >> (5 /* Tree.BranchShift */ - 1)) &&\n updated.lines > (totalLines >> (5 /* Tree.BranchShift */ + 1))) {\n let copy = this.children.slice();\n copy[i] = updated;\n return new TextNode(copy, this.length - (to - from) + text.length);\n }\n return super.replace(pos, end, updated);\n }\n pos = end + 1;\n }\n return super.replace(from, to, text);\n }\n sliceString(from, to = this.length, lineSep = \"\\n\") {\n let result = \"\";\n for (let i = 0, pos = 0; i < this.children.length && pos <= to; i++) {\n let child = this.children[i], end = pos + child.length;\n if (pos > from && i)\n result += lineSep;\n if (from < end && to > pos)\n result += child.sliceString(from - pos, to - pos, lineSep);\n pos = end + 1;\n }\n return result;\n }\n flatten(target) {\n for (let child of this.children)\n child.flatten(target);\n }\n scanIdentical(other, dir) {\n if (!(other instanceof TextNode))\n return 0;\n let length = 0;\n let [iA, iB, eA, eB] = dir > 0 ? [0, 0, this.children.length, other.children.length]\n : [this.children.length - 1, other.children.length - 1, -1, -1];\n for (;; iA += dir, iB += dir) {\n if (iA == eA || iB == eB)\n return length;\n let chA = this.children[iA], chB = other.children[iB];\n if (chA != chB)\n return length + chA.scanIdentical(chB, dir);\n length += chA.length + 1;\n }\n }\n static from(children, length = children.reduce((l, ch) => l + ch.length + 1, -1)) {\n let lines = 0;\n for (let ch of children)\n lines += ch.lines;\n if (lines < 32 /* Tree.Branch */) {\n let flat = [];\n for (let ch of children)\n ch.flatten(flat);\n return new TextLeaf(flat, length);\n }\n let chunk = Math.max(32 /* Tree.Branch */, lines >> 5 /* Tree.BranchShift */), maxChunk = chunk << 1, minChunk = chunk >> 1;\n let chunked = [], currentLines = 0, currentLen = -1, currentChunk = [];\n function add(child) {\n let last;\n if (child.lines > maxChunk && child instanceof TextNode) {\n for (let node of child.children)\n add(node);\n }\n else if (child.lines > minChunk && (currentLines > minChunk || !currentLines)) {\n flush();\n chunked.push(child);\n }\n else if (child instanceof TextLeaf && currentLines &&\n (last = currentChunk[currentChunk.length - 1]) instanceof TextLeaf &&\n child.lines + last.lines <= 32 /* Tree.Branch */) {\n currentLines += child.lines;\n currentLen += child.length + 1;\n currentChunk[currentChunk.length - 1] = new TextLeaf(last.text.concat(child.text), last.length + 1 + child.length);\n }\n else {\n if (currentLines + child.lines > chunk)\n flush();\n currentLines += child.lines;\n currentLen += child.length + 1;\n currentChunk.push(child);\n }\n }\n function flush() {\n if (currentLines == 0)\n return;\n chunked.push(currentChunk.length == 1 ? currentChunk[0] : TextNode.from(currentChunk, currentLen));\n currentLen = -1;\n currentLines = currentChunk.length = 0;\n }\n for (let child of children)\n add(child);\n flush();\n return chunked.length == 1 ? chunked[0] : new TextNode(chunked, length);\n }\n}\nText.empty = /*@__PURE__*/new TextLeaf([\"\"], 0);\nfunction textLength(text) {\n let length = -1;\n for (let line of text)\n length += line.length + 1;\n return length;\n}\nfunction appendText(text, target, from = 0, to = 1e9) {\n for (let pos = 0, i = 0, first = true; i < text.length && pos <= to; i++) {\n let line = text[i], end = pos + line.length;\n if (end >= from) {\n if (end > to)\n line = line.slice(0, to - pos);\n if (pos < from)\n line = line.slice(from - pos);\n if (first) {\n target[target.length - 1] += line;\n first = false;\n }\n else\n target.push(line);\n }\n pos = end + 1;\n }\n return target;\n}\nfunction sliceText(text, from, to) {\n return appendText(text, [\"\"], from, to);\n}\nclass RawTextCursor {\n constructor(text, dir = 1) {\n this.dir = dir;\n this.done = false;\n this.lineBreak = false;\n this.value = \"\";\n this.nodes = [text];\n this.offsets = [dir > 0 ? 1 : (text instanceof TextLeaf ? text.text.length : text.children.length) << 1];\n }\n nextInner(skip, dir) {\n this.done = this.lineBreak = false;\n for (;;) {\n let last = this.nodes.length - 1;\n let top = this.nodes[last], offsetValue = this.offsets[last], offset = offsetValue >> 1;\n let size = top instanceof TextLeaf ? top.text.length : top.children.length;\n if (offset == (dir > 0 ? size : 0)) {\n if (last == 0) {\n this.done = true;\n this.value = \"\";\n return this;\n }\n if (dir > 0)\n this.offsets[last - 1]++;\n this.nodes.pop();\n this.offsets.pop();\n }\n else if ((offsetValue & 1) == (dir > 0 ? 0 : 1)) {\n this.offsets[last] += dir;\n if (skip == 0) {\n this.lineBreak = true;\n this.value = \"\\n\";\n return this;\n }\n skip--;\n }\n else if (top instanceof TextLeaf) {\n // Move to the next string\n let next = top.text[offset + (dir < 0 ? -1 : 0)];\n this.offsets[last] += dir;\n if (next.length > Math.max(0, skip)) {\n this.value = skip == 0 ? next : dir > 0 ? next.slice(skip) : next.slice(0, next.length - skip);\n return this;\n }\n skip -= next.length;\n }\n else {\n let next = top.children[offset + (dir < 0 ? -1 : 0)];\n if (skip > next.length) {\n skip -= next.length;\n this.offsets[last] += dir;\n }\n else {\n if (dir < 0)\n this.offsets[last]--;\n this.nodes.push(next);\n this.offsets.push(dir > 0 ? 1 : (next instanceof TextLeaf ? next.text.length : next.children.length) << 1);\n }\n }\n }\n }\n next(skip = 0) {\n if (skip < 0) {\n this.nextInner(-skip, (-this.dir));\n skip = this.value.length;\n }\n return this.nextInner(skip, this.dir);\n }\n}\nclass PartialTextCursor {\n constructor(text, start, end) {\n this.value = \"\";\n this.done = false;\n this.cursor = new RawTextCursor(text, start > end ? -1 : 1);\n this.pos = start > end ? text.length : 0;\n this.from = Math.min(start, end);\n this.to = Math.max(start, end);\n }\n nextInner(skip, dir) {\n if (dir < 0 ? this.pos <= this.from : this.pos >= this.to) {\n this.value = \"\";\n this.done = true;\n return this;\n }\n skip += Math.max(0, dir < 0 ? this.pos - this.to : this.from - this.pos);\n let limit = dir < 0 ? this.pos - this.from : this.to - this.pos;\n if (skip > limit)\n skip = limit;\n limit -= skip;\n let { value } = this.cursor.next(skip);\n this.pos += (value.length + skip) * dir;\n this.value = value.length <= limit ? value : dir < 0 ? value.slice(value.length - limit) : value.slice(0, limit);\n this.done = !this.value;\n return this;\n }\n next(skip = 0) {\n if (skip < 0)\n skip = Math.max(skip, this.from - this.pos);\n else if (skip > 0)\n skip = Math.min(skip, this.to - this.pos);\n return this.nextInner(skip, this.cursor.dir);\n }\n get lineBreak() { return this.cursor.lineBreak && this.value != \"\"; }\n}\nclass LineCursor {\n constructor(inner) {\n this.inner = inner;\n this.afterBreak = true;\n this.value = \"\";\n this.done = false;\n }\n next(skip = 0) {\n let { done, lineBreak, value } = this.inner.next(skip);\n if (done) {\n this.done = true;\n this.value = \"\";\n }\n else if (lineBreak) {\n if (this.afterBreak) {\n this.value = \"\";\n }\n else {\n this.afterBreak = true;\n this.next();\n }\n }\n else {\n this.value = value;\n this.afterBreak = false;\n }\n return this;\n }\n get lineBreak() { return false; }\n}\nif (typeof Symbol != \"undefined\") {\n Text.prototype[Symbol.iterator] = function () { return this.iter(); };\n RawTextCursor.prototype[Symbol.iterator] = PartialTextCursor.prototype[Symbol.iterator] =\n LineCursor.prototype[Symbol.iterator] = function () { return this; };\n}\n/**\nThis type describes a line in the document. It is created\non-demand when lines are [queried](https://codemirror.net/6/docs/ref/#state.Text.lineAt).\n*/\nclass Line {\n /**\n @internal\n */\n constructor(\n /**\n The position of the start of the line.\n */\n from, \n /**\n The position at the end of the line (_before_ the line break,\n or at the end of document for the last line).\n */\n to, \n /**\n This line's line number (1-based).\n */\n number, \n /**\n The line's content.\n */\n text) {\n this.from = from;\n this.to = to;\n this.number = number;\n this.text = text;\n }\n /**\n The length of the line (not including any line break after it).\n */\n get length() { return this.to - this.from; }\n}\n\n// Compressed representation of the Grapheme_Cluster_Break=Extend\n// information from\n// http://www.unicode.org/Public/13.0.0/ucd/auxiliary/GraphemeBreakProperty.txt.\n// Each pair of elements represents a range, as an offet from the\n// previous range and a length. Numbers are in base-36, with the empty\n// string being a shorthand for 1.\nlet extend = /*@__PURE__*/\"lc,34,7n,7,7b,19,,,,2,,2,,,20,b,1c,l,g,,2t,7,2,6,2,2,,4,z,,u,r,2j,b,1m,9,9,,o,4,,9,,3,,5,17,3,3b,f,,w,1j,,,,4,8,4,,3,7,a,2,t,,1m,,,,2,4,8,,9,,a,2,q,,2,2,1l,,4,2,4,2,2,3,3,,u,2,3,,b,2,1l,,4,5,,2,4,,k,2,m,6,,,1m,,,2,,4,8,,7,3,a,2,u,,1n,,,,c,,9,,14,,3,,1l,3,5,3,,4,7,2,b,2,t,,1m,,2,,2,,3,,5,2,7,2,b,2,s,2,1l,2,,,2,4,8,,9,,a,2,t,,20,,4,,2,3,,,8,,29,,2,7,c,8,2q,,2,9,b,6,22,2,r,,,,,,1j,e,,5,,2,5,b,,10,9,,2u,4,,6,,2,2,2,p,2,4,3,g,4,d,,2,2,6,,f,,jj,3,qa,3,t,3,t,2,u,2,1s,2,,7,8,,2,b,9,,19,3,3b,2,y,,3a,3,4,2,9,,6,3,63,2,2,,1m,,,7,,,,,2,8,6,a,2,,1c,h,1r,4,1c,7,,,5,,14,9,c,2,w,4,2,2,,3,1k,,,2,3,,,3,1m,8,2,2,48,3,,d,,7,4,,6,,3,2,5i,1m,,5,ek,,5f,x,2da,3,3x,,2o,w,fe,6,2x,2,n9w,4,,a,w,2,28,2,7k,,3,,4,,p,2,5,,47,2,q,i,d,,12,8,p,b,1a,3,1c,,2,4,2,2,13,,1v,6,2,2,2,2,c,,8,,1b,,1f,,,3,2,2,5,2,,,16,2,8,,6m,,2,,4,,fn4,,kh,g,g,g,a6,2,gt,,6a,,45,5,1ae,3,,2,5,4,14,3,4,,4l,2,fx,4,ar,2,49,b,4w,,1i,f,1k,3,1d,4,2,2,1x,3,10,5,,8,1q,,c,2,1g,9,a,4,2,,2n,3,2,,,2,6,,4g,,3,8,l,2,1l,2,,,,,m,,e,7,3,5,5f,8,2,3,,,n,,29,,2,6,,,2,,,2,,2,6j,,2,4,6,2,,2,r,2,2d,8,2,,,2,2y,,,,2,6,,,2t,3,2,4,,5,77,9,,2,6t,,a,2,,,4,,40,4,2,2,4,,w,a,14,6,2,4,8,,9,6,2,3,1a,d,,2,ba,7,,6,,,2a,m,2,7,,2,,2,3e,6,3,,,2,,7,,,20,2,3,,,,9n,2,f0b,5,1n,7,t4,,1r,4,29,,f5k,2,43q,,,3,4,5,8,8,2,7,u,4,44,3,1iz,1j,4,1e,8,,e,,m,5,,f,11s,7,,h,2,7,,2,,5,79,7,c5,4,15s,7,31,7,240,5,gx7k,2o,3k,6o\".split(\",\").map(s => s ? parseInt(s, 36) : 1);\n// Convert offsets into absolute values\nfor (let i = 1; i < extend.length; i++)\n extend[i] += extend[i - 1];\nfunction isExtendingChar(code) {\n for (let i = 1; i < extend.length; i += 2)\n if (extend[i] > code)\n return extend[i - 1] <= code;\n return false;\n}\nfunction isRegionalIndicator(code) {\n return code >= 0x1F1E6 && code <= 0x1F1FF;\n}\nconst ZWJ = 0x200d;\n/**\nReturns a next grapheme cluster break _after_ (not equal to)\n`pos`, if `forward` is true, or before otherwise. Returns `pos`\nitself if no further cluster break is available in the string.\nMoves across surrogate pairs, extending characters (when\n`includeExtending` is true), characters joined with zero-width\njoiners, and flag emoji.\n*/\nfunction findClusterBreak(str, pos, forward = true, includeExtending = true) {\n return (forward ? nextClusterBreak : prevClusterBreak)(str, pos, includeExtending);\n}\nfunction nextClusterBreak(str, pos, includeExtending) {\n if (pos == str.length)\n return pos;\n // If pos is in the middle of a surrogate pair, move to its start\n if (pos && surrogateLow(str.charCodeAt(pos)) && surrogateHigh(str.charCodeAt(pos - 1)))\n pos--;\n let prev = codePointAt(str, pos);\n pos += codePointSize(prev);\n while (pos < str.length) {\n let next = codePointAt(str, pos);\n if (prev == ZWJ || next == ZWJ || includeExtending && isExtendingChar(next)) {\n pos += codePointSize(next);\n prev = next;\n }\n else if (isRegionalIndicator(next)) {\n let countBefore = 0, i = pos - 2;\n while (i >= 0 && isRegionalIndicator(codePointAt(str, i))) {\n countBefore++;\n i -= 2;\n }\n if (countBefore % 2 == 0)\n break;\n else\n pos += 2;\n }\n else {\n break;\n }\n }\n return pos;\n}\nfunction prevClusterBreak(str, pos, includeExtending) {\n while (pos > 0) {\n let found = nextClusterBreak(str, pos - 2, includeExtending);\n if (found < pos)\n return found;\n pos--;\n }\n return 0;\n}\nfunction surrogateLow(ch) { return ch >= 0xDC00 && ch < 0xE000; }\nfunction surrogateHigh(ch) { return ch >= 0xD800 && ch < 0xDC00; }\n/**\nFind the code point at the given position in a string (like the\n[`codePointAt`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/codePointAt)\nstring method).\n*/\nfunction codePointAt(str, pos) {\n let code0 = str.charCodeAt(pos);\n if (!surrogateHigh(code0) || pos + 1 == str.length)\n return code0;\n let code1 = str.charCodeAt(pos + 1);\n if (!surrogateLow(code1))\n return code0;\n return ((code0 - 0xd800) << 10) + (code1 - 0xdc00) + 0x10000;\n}\n/**\nGiven a Unicode codepoint, return the JavaScript string that\nrespresents it (like\n[`String.fromCodePoint`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/fromCodePoint)).\n*/\nfunction fromCodePoint(code) {\n if (code <= 0xffff)\n return String.fromCharCode(code);\n code -= 0x10000;\n return String.fromCharCode((code >> 10) + 0xd800, (code & 1023) + 0xdc00);\n}\n/**\nThe amount of positions a character takes up a JavaScript string.\n*/\nfunction codePointSize(code) { return code < 0x10000 ? 1 : 2; }\n\nconst DefaultSplit = /\\r\\n?|\\n/;\n/**\nDistinguishes different ways in which positions can be mapped.\n*/\nvar MapMode = /*@__PURE__*/(function (MapMode) {\n /**\n Map a position to a valid new position, even when its context\n was deleted.\n */\n MapMode[MapMode[\"Simple\"] = 0] = \"Simple\";\n /**\n Return null if deletion happens across the position.\n */\n MapMode[MapMode[\"TrackDel\"] = 1] = \"TrackDel\";\n /**\n Return null if the character _before_ the position is deleted.\n */\n MapMode[MapMode[\"TrackBefore\"] = 2] = \"TrackBefore\";\n /**\n Return null if the character _after_ the position is deleted.\n */\n MapMode[MapMode[\"TrackAfter\"] = 3] = \"TrackAfter\";\nreturn MapMode})(MapMode || (MapMode = {}));\n/**\nA change description is a variant of [change set](https://codemirror.net/6/docs/ref/#state.ChangeSet)\nthat doesn't store the inserted text. As such, it can't be\napplied, but is cheaper to store and manipulate.\n*/\nclass ChangeDesc {\n // Sections are encoded as pairs of integers. The first is the\n // length in the current document, and the second is -1 for\n // unaffected sections, and the length of the replacement content\n // otherwise. So an insertion would be (0, n>0), a deletion (n>0,\n // 0), and a replacement two positive numbers.\n /**\n @internal\n */\n constructor(\n /**\n @internal\n */\n sections) {\n this.sections = sections;\n }\n /**\n The length of the document before the change.\n */\n get length() {\n let result = 0;\n for (let i = 0; i < this.sections.length; i += 2)\n result += this.sections[i];\n return result;\n }\n /**\n The length of the document after the change.\n */\n get newLength() {\n let result = 0;\n for (let i = 0; i < this.sections.length; i += 2) {\n let ins = this.sections[i + 1];\n result += ins < 0 ? this.sections[i] : ins;\n }\n return result;\n }\n /**\n False when there are actual changes in this set.\n */\n get empty() { return this.sections.length == 0 || this.sections.length == 2 && this.sections[1] < 0; }\n /**\n Iterate over the unchanged parts left by these changes. `posA`\n provides the position of the range in the old document, `posB`\n the new position in the changed document.\n */\n iterGaps(f) {\n for (let i = 0, posA = 0, posB = 0; i < this.sections.length;) {\n let len = this.sections[i++], ins = this.sections[i++];\n if (ins < 0) {\n f(posA, posB, len);\n posB += len;\n }\n else {\n posB += ins;\n }\n posA += len;\n }\n }\n /**\n Iterate over the ranges changed by these changes. (See\n [`ChangeSet.iterChanges`](https://codemirror.net/6/docs/ref/#state.ChangeSet.iterChanges) for a\n variant that also provides you with the inserted text.)\n `fromA`/`toA` provides the extent of the change in the starting\n document, `fromB`/`toB` the extent of the replacement in the\n changed document.\n \n When `individual` is true, adjacent changes (which are kept\n separate for [position mapping](https://codemirror.net/6/docs/ref/#state.ChangeDesc.mapPos)) are\n reported separately.\n */\n iterChangedRanges(f, individual = false) {\n iterChanges(this, f, individual);\n }\n /**\n Get a description of the inverted form of these changes.\n */\n get invertedDesc() {\n let sections = [];\n for (let i = 0; i < this.sections.length;) {\n let len = this.sections[i++], ins = this.sections[i++];\n if (ins < 0)\n sections.push(len, ins);\n else\n sections.push(ins, len);\n }\n return new ChangeDesc(sections);\n }\n /**\n Compute the combined effect of applying another set of changes\n after this one. The length of the document after this set should\n match the length before `other`.\n */\n composeDesc(other) { return this.empty ? other : other.empty ? this : composeSets(this, other); }\n /**\n Map this description, which should start with the same document\n as `other`, over another set of changes, so that it can be\n applied after it. When `before` is true, map as if the changes\n in `other` happened before the ones in `this`.\n */\n mapDesc(other, before = false) { return other.empty ? this : mapSet(this, other, before); }\n mapPos(pos, assoc = -1, mode = MapMode.Simple) {\n let posA = 0, posB = 0;\n for (let i = 0; i < this.sections.length;) {\n let len = this.sections[i++], ins = this.sections[i++], endA = posA + len;\n if (ins < 0) {\n if (endA > pos)\n return posB + (pos - posA);\n posB += len;\n }\n else {\n if (mode != MapMode.Simple && endA >= pos &&\n (mode == MapMode.TrackDel && posA < pos && endA > pos ||\n mode == MapMode.TrackBefore && posA < pos ||\n mode == MapMode.TrackAfter && endA > pos))\n return null;\n if (endA > pos || endA == pos && assoc < 0 && !len)\n return pos == posA || assoc < 0 ? posB : posB + ins;\n posB += ins;\n }\n posA = endA;\n }\n if (pos > posA)\n throw new RangeError(`Position ${pos} is out of range for changeset of length ${posA}`);\n return posB;\n }\n /**\n Check whether these changes touch a given range. When one of the\n changes entirely covers the range, the string `\"cover\"` is\n returned.\n */\n touchesRange(from, to = from) {\n for (let i = 0, pos = 0; i < this.sections.length && pos <= to;) {\n let len = this.sections[i++], ins = this.sections[i++], end = pos + len;\n if (ins >= 0 && pos <= to && end >= from)\n return pos < from && end > to ? \"cover\" : true;\n pos = end;\n }\n return false;\n }\n /**\n @internal\n */\n toString() {\n let result = \"\";\n for (let i = 0; i < this.sections.length;) {\n let len = this.sections[i++], ins = this.sections[i++];\n result += (result ? \" \" : \"\") + len + (ins >= 0 ? \":\" + ins : \"\");\n }\n return result;\n }\n /**\n Serialize this change desc to a JSON-representable value.\n */\n toJSON() { return this.sections; }\n /**\n Create a change desc from its JSON representation (as produced\n by [`toJSON`](https://codemirror.net/6/docs/ref/#state.ChangeDesc.toJSON).\n */\n static fromJSON(json) {\n if (!Array.isArray(json) || json.length % 2 || json.some(a => typeof a != \"number\"))\n throw new RangeError(\"Invalid JSON representation of ChangeDesc\");\n return new ChangeDesc(json);\n }\n /**\n @internal\n */\n static create(sections) { return new ChangeDesc(sections); }\n}\n/**\nA change set represents a group of modifications to a document. It\nstores the document length, and can only be applied to documents\nwith exactly that length.\n*/\nclass ChangeSet extends ChangeDesc {\n constructor(sections, \n /**\n @internal\n */\n inserted) {\n super(sections);\n this.inserted = inserted;\n }\n /**\n Apply the changes to a document, returning the modified\n document.\n */\n apply(doc) {\n if (this.length != doc.length)\n throw new RangeError(\"Applying change set to a document with the wrong length\");\n iterChanges(this, (fromA, toA, fromB, _toB, text) => doc = doc.replace(fromB, fromB + (toA - fromA), text), false);\n return doc;\n }\n mapDesc(other, before = false) { return mapSet(this, other, before, true); }\n /**\n Given the document as it existed _before_ the changes, return a\n change set that represents the inverse of this set, which could\n be used to go from the document created by the changes back to\n the document as it existed before the changes.\n */\n invert(doc) {\n let sections = this.sections.slice(), inserted = [];\n for (let i = 0, pos = 0; i < sections.length; i += 2) {\n let len = sections[i], ins = sections[i + 1];\n if (ins >= 0) {\n sections[i] = ins;\n sections[i + 1] = len;\n let index = i >> 1;\n while (inserted.length < index)\n inserted.push(Text.empty);\n inserted.push(len ? doc.slice(pos, pos + len) : Text.empty);\n }\n pos += len;\n }\n return new ChangeSet(sections, inserted);\n }\n /**\n Combine two subsequent change sets into a single set. `other`\n must start in the document produced by `this`. If `this` goes\n `docA` → `docB` and `other` represents `docB` → `docC`, the\n returned value will represent the change `docA` → `docC`.\n */\n compose(other) { return this.empty ? other : other.empty ? this : composeSets(this, other, true); }\n /**\n Given another change set starting in the same document, maps this\n change set over the other, producing a new change set that can be\n applied to the document produced by applying `other`. When\n `before` is `true`, order changes as if `this` comes before\n `other`, otherwise (the default) treat `other` as coming first.\n \n Given two changes `A` and `B`, `A.compose(B.map(A))` and\n `B.compose(A.map(B, true))` will produce the same document. This\n provides a basic form of [operational\n transformation](https://en.wikipedia.org/wiki/Operational_transformation),\n and can be used for collaborative editing.\n */\n map(other, before = false) { return other.empty ? this : mapSet(this, other, before, true); }\n /**\n Iterate over the changed ranges in the document, calling `f` for\n each, with the range in the original document (`fromA`-`toA`)\n and the range that replaces it in the new document\n (`fromB`-`toB`).\n \n When `individual` is true, adjacent changes are reported\n separately.\n */\n iterChanges(f, individual = false) {\n iterChanges(this, f, individual);\n }\n /**\n Get a [change description](https://codemirror.net/6/docs/ref/#state.ChangeDesc) for this change\n set.\n */\n get desc() { return ChangeDesc.create(this.sections); }\n /**\n @internal\n */\n filter(ranges) {\n let resultSections = [], resultInserted = [], filteredSections = [];\n let iter = new SectionIter(this);\n done: for (let i = 0, pos = 0;;) {\n let next = i == ranges.length ? 1e9 : ranges[i++];\n while (pos < next || pos == next && iter.len == 0) {\n if (iter.done)\n break done;\n let len = Math.min(iter.len, next - pos);\n addSection(filteredSections, len, -1);\n let ins = iter.ins == -1 ? -1 : iter.off == 0 ? iter.ins : 0;\n addSection(resultSections, len, ins);\n if (ins > 0)\n addInsert(resultInserted, resultSections, iter.text);\n iter.forward(len);\n pos += len;\n }\n let end = ranges[i++];\n while (pos < end) {\n if (iter.done)\n break done;\n let len = Math.min(iter.len, end - pos);\n addSection(resultSections, len, -1);\n addSection(filteredSections, len, iter.ins == -1 ? -1 : iter.off == 0 ? iter.ins : 0);\n iter.forward(len);\n pos += len;\n }\n }\n return { changes: new ChangeSet(resultSections, resultInserted),\n filtered: ChangeDesc.create(filteredSections) };\n }\n /**\n Serialize this change set to a JSON-representable value.\n */\n toJSON() {\n let parts = [];\n for (let i = 0; i < this.sections.length; i += 2) {\n let len = this.sections[i], ins = this.sections[i + 1];\n if (ins < 0)\n parts.push(len);\n else if (ins == 0)\n parts.push([len]);\n else\n parts.push([len].concat(this.inserted[i >> 1].toJSON()));\n }\n return parts;\n }\n /**\n Create a change set for the given changes, for a document of the\n given length, using `lineSep` as line separator.\n */\n static of(changes, length, lineSep) {\n let sections = [], inserted = [], pos = 0;\n let total = null;\n function flush(force = false) {\n if (!force && !sections.length)\n return;\n if (pos < length)\n addSection(sections, length - pos, -1);\n let set = new ChangeSet(sections, inserted);\n total = total ? total.compose(set.map(total)) : set;\n sections = [];\n inserted = [];\n pos = 0;\n }\n function process(spec) {\n if (Array.isArray(spec)) {\n for (let sub of spec)\n process(sub);\n }\n else if (spec instanceof ChangeSet) {\n if (spec.length != length)\n throw new RangeError(`Mismatched change set length (got ${spec.length}, expected ${length})`);\n flush();\n total = total ? total.compose(spec.map(total)) : spec;\n }\n else {\n let { from, to = from, insert } = spec;\n if (from > to || from < 0 || to > length)\n throw new RangeError(`Invalid change range ${from} to ${to} (in doc of length ${length})`);\n let insText = !insert ? Text.empty : typeof insert == \"string\" ? Text.of(insert.split(lineSep || DefaultSplit)) : insert;\n let insLen = insText.length;\n if (from == to && insLen == 0)\n return;\n if (from < pos)\n flush();\n if (from > pos)\n addSection(sections, from - pos, -1);\n addSection(sections, to - from, insLen);\n addInsert(inserted, sections, insText);\n pos = to;\n }\n }\n process(changes);\n flush(!total);\n return total;\n }\n /**\n Create an empty changeset of the given length.\n */\n static empty(length) {\n return new ChangeSet(length ? [length, -1] : [], []);\n }\n /**\n Create a changeset from its JSON representation (as produced by\n [`toJSON`](https://codemirror.net/6/docs/ref/#state.ChangeSet.toJSON).\n */\n static fromJSON(json) {\n if (!Array.isArray(json))\n throw new RangeError(\"Invalid JSON representation of ChangeSet\");\n let sections = [], inserted = [];\n for (let i = 0; i < json.length; i++) {\n let part = json[i];\n if (typeof part == \"number\") {\n sections.push(part, -1);\n }\n else if (!Array.isArray(part) || typeof part[0] != \"number\" || part.some((e, i) => i && typeof e != \"string\")) {\n throw new RangeError(\"Invalid JSON representation of ChangeSet\");\n }\n else if (part.length == 1) {\n sections.push(part[0], 0);\n }\n else {\n while (inserted.length < i)\n inserted.push(Text.empty);\n inserted[i] = Text.of(part.slice(1));\n sections.push(part[0], inserted[i].length);\n }\n }\n return new ChangeSet(sections, inserted);\n }\n /**\n @internal\n */\n static createSet(sections, inserted) {\n return new ChangeSet(sections, inserted);\n }\n}\nfunction addSection(sections, len, ins, forceJoin = false) {\n if (len == 0 && ins <= 0)\n return;\n let last = sections.length - 2;\n if (last >= 0 && ins <= 0 && ins == sections[last + 1])\n sections[last] += len;\n else if (len == 0 && sections[last] == 0)\n sections[last + 1] += ins;\n else if (forceJoin) {\n sections[last] += len;\n sections[last + 1] += ins;\n }\n else\n sections.push(len, ins);\n}\nfunction addInsert(values, sections, value) {\n if (value.length == 0)\n return;\n let index = (sections.length - 2) >> 1;\n if (index < values.length) {\n values[values.length - 1] = values[values.length - 1].append(value);\n }\n else {\n while (values.length < index)\n values.push(Text.empty);\n values.push(value);\n }\n}\nfunction iterChanges(desc, f, individual) {\n let inserted = desc.inserted;\n for (let posA = 0, posB = 0, i = 0; i < desc.sections.length;) {\n let len = desc.sections[i++], ins = desc.sections[i++];\n if (ins < 0) {\n posA += len;\n posB += len;\n }\n else {\n let endA = posA, endB = posB, text = Text.empty;\n for (;;) {\n endA += len;\n endB += ins;\n if (ins && inserted)\n text = text.append(inserted[(i - 2) >> 1]);\n if (individual || i == desc.sections.length || desc.sections[i + 1] < 0)\n break;\n len = desc.sections[i++];\n ins = desc.sections[i++];\n }\n f(posA, endA, posB, endB, text);\n posA = endA;\n posB = endB;\n }\n }\n}\nfunction mapSet(setA, setB, before, mkSet = false) {\n // Produce a copy of setA that applies to the document after setB\n // has been applied (assuming both start at the same document).\n let sections = [], insert = mkSet ? [] : null;\n let a = new SectionIter(setA), b = new SectionIter(setB);\n // Iterate over both sets in parallel. inserted tracks, for changes\n // in A that have to be processed piece-by-piece, whether their\n // content has been inserted already, and refers to the section\n // index.\n for (let inserted = -1;;) {\n if (a.ins == -1 && b.ins == -1) {\n // Move across ranges skipped by both sets.\n let len = Math.min(a.len, b.len);\n addSection(sections, len, -1);\n a.forward(len);\n b.forward(len);\n }\n else if (b.ins >= 0 && (a.ins < 0 || inserted == a.i || a.off == 0 && (b.len < a.len || b.len == a.len && !before))) {\n // If there's a change in B that comes before the next change in\n // A (ordered by start pos, then len, then before flag), skip\n // that (and process any changes in A it covers).\n let len = b.len;\n addSection(sections, b.ins, -1);\n while (len) {\n let piece = Math.min(a.len, len);\n if (a.ins >= 0 && inserted < a.i && a.len <= piece) {\n addSection(sections, 0, a.ins);\n if (insert)\n addInsert(insert, sections, a.text);\n inserted = a.i;\n }\n a.forward(piece);\n len -= piece;\n }\n b.next();\n }\n else if (a.ins >= 0) {\n // Process the part of a change in A up to the start of the next\n // non-deletion change in B (if overlapping).\n let len = 0, left = a.len;\n while (left) {\n if (b.ins == -1) {\n let piece = Math.min(left, b.len);\n len += piece;\n left -= piece;\n b.forward(piece);\n }\n else if (b.ins == 0 && b.len < left) {\n left -= b.len;\n b.next();\n }\n else {\n break;\n }\n }\n addSection(sections, len, inserted < a.i ? a.ins : 0);\n if (insert && inserted < a.i)\n addInsert(insert, sections, a.text);\n inserted = a.i;\n a.forward(a.len - left);\n }\n else if (a.done && b.done) {\n return insert ? ChangeSet.createSet(sections, insert) : ChangeDesc.create(sections);\n }\n else {\n throw new Error(\"Mismatched change set lengths\");\n }\n }\n}\nfunction composeSets(setA, setB, mkSet = false) {\n let sections = [];\n let insert = mkSet ? [] : null;\n let a = new SectionIter(setA), b = new SectionIter(setB);\n for (let open = false;;) {\n if (a.done && b.done) {\n return insert ? ChangeSet.createSet(sections, insert) : ChangeDesc.create(sections);\n }\n else if (a.ins == 0) { // Deletion in A\n addSection(sections, a.len, 0, open);\n a.next();\n }\n else if (b.len == 0 && !b.done) { // Insertion in B\n addSection(sections, 0, b.ins, open);\n if (insert)\n addInsert(insert, sections, b.text);\n b.next();\n }\n else if (a.done || b.done) {\n throw new Error(\"Mismatched change set lengths\");\n }\n else {\n let len = Math.min(a.len2, b.len), sectionLen = sections.length;\n if (a.ins == -1) {\n let insB = b.ins == -1 ? -1 : b.off ? 0 : b.ins;\n addSection(sections, len, insB, open);\n if (insert && insB)\n addInsert(insert, sections, b.text);\n }\n else if (b.ins == -1) {\n addSection(sections, a.off ? 0 : a.len, len, open);\n if (insert)\n addInsert(insert, sections, a.textBit(len));\n }\n else {\n addSection(sections, a.off ? 0 : a.len, b.off ? 0 : b.ins, open);\n if (insert && !b.off)\n addInsert(insert, sections, b.text);\n }\n open = (a.ins > len || b.ins >= 0 && b.len > len) && (open || sections.length > sectionLen);\n a.forward2(len);\n b.forward(len);\n }\n }\n}\nclass SectionIter {\n constructor(set) {\n this.set = set;\n this.i = 0;\n this.next();\n }\n next() {\n let { sections } = this.set;\n if (this.i < sections.length) {\n this.len = sections[this.i++];\n this.ins = sections[this.i++];\n }\n else {\n this.len = 0;\n this.ins = -2;\n }\n this.off = 0;\n }\n get done() { return this.ins == -2; }\n get len2() { return this.ins < 0 ? this.len : this.ins; }\n get text() {\n let { inserted } = this.set, index = (this.i - 2) >> 1;\n return index >= inserted.length ? Text.empty : inserted[index];\n }\n textBit(len) {\n let { inserted } = this.set, index = (this.i - 2) >> 1;\n return index >= inserted.length && !len ? Text.empty\n : inserted[index].slice(this.off, len == null ? undefined : this.off + len);\n }\n forward(len) {\n if (len == this.len)\n this.next();\n else {\n this.len -= len;\n this.off += len;\n }\n }\n forward2(len) {\n if (this.ins == -1)\n this.forward(len);\n else if (len == this.ins)\n this.next();\n else {\n this.ins -= len;\n this.off += len;\n }\n }\n}\n\n/**\nA single selection range. When\n[`allowMultipleSelections`](https://codemirror.net/6/docs/ref/#state.EditorState^allowMultipleSelections)\nis enabled, a [selection](https://codemirror.net/6/docs/ref/#state.EditorSelection) may hold\nmultiple ranges. By default, selections hold exactly one range.\n*/\nclass SelectionRange {\n constructor(\n /**\n The lower boundary of the range.\n */\n from, \n /**\n The upper boundary of the range.\n */\n to, flags) {\n this.from = from;\n this.to = to;\n this.flags = flags;\n }\n /**\n The anchor of the range—the side that doesn't move when you\n extend it.\n */\n get anchor() { return this.flags & 32 /* RangeFlag.Inverted */ ? this.to : this.from; }\n /**\n The head of the range, which is moved when the range is\n [extended](https://codemirror.net/6/docs/ref/#state.SelectionRange.extend).\n */\n get head() { return this.flags & 32 /* RangeFlag.Inverted */ ? this.from : this.to; }\n /**\n True when `anchor` and `head` are at the same position.\n */\n get empty() { return this.from == this.to; }\n /**\n If this is a cursor that is explicitly associated with the\n character on one of its sides, this returns the side. -1 means\n the character before its position, 1 the character after, and 0\n means no association.\n */\n get assoc() { return this.flags & 8 /* RangeFlag.AssocBefore */ ? -1 : this.flags & 16 /* RangeFlag.AssocAfter */ ? 1 : 0; }\n /**\n The bidirectional text level associated with this cursor, if\n any.\n */\n get bidiLevel() {\n let level = this.flags & 7 /* RangeFlag.BidiLevelMask */;\n return level == 7 ? null : level;\n }\n /**\n The goal column (stored vertical offset) associated with a\n cursor. This is used to preserve the vertical position when\n [moving](https://codemirror.net/6/docs/ref/#view.EditorView.moveVertically) across\n lines of different length.\n */\n get goalColumn() {\n let value = this.flags >> 6 /* RangeFlag.GoalColumnOffset */;\n return value == 16777215 /* RangeFlag.NoGoalColumn */ ? undefined : value;\n }\n /**\n Map this range through a change, producing a valid range in the\n updated document.\n */\n map(change, assoc = -1) {\n let from, to;\n if (this.empty) {\n from = to = change.mapPos(this.from, assoc);\n }\n else {\n from = change.mapPos(this.from, 1);\n to = change.mapPos(this.to, -1);\n }\n return from == this.from && to == this.to ? this : new SelectionRange(from, to, this.flags);\n }\n /**\n Extend this range to cover at least `from` to `to`.\n */\n extend(from, to = from) {\n if (from <= this.anchor && to >= this.anchor)\n return EditorSelection.range(from, to);\n let head = Math.abs(from - this.anchor) > Math.abs(to - this.anchor) ? from : to;\n return EditorSelection.range(this.anchor, head);\n }\n /**\n Compare this range to another range.\n */\n eq(other) {\n return this.anchor == other.anchor && this.head == other.head;\n }\n /**\n Return a JSON-serializable object representing the range.\n */\n toJSON() { return { anchor: this.anchor, head: this.head }; }\n /**\n Convert a JSON representation of a range to a `SelectionRange`\n instance.\n */\n static fromJSON(json) {\n if (!json || typeof json.anchor != \"number\" || typeof json.head != \"number\")\n throw new RangeError(\"Invalid JSON representation for SelectionRange\");\n return EditorSelection.range(json.anchor, json.head);\n }\n /**\n @internal\n */\n static create(from, to, flags) {\n return new SelectionRange(from, to, flags);\n }\n}\n/**\nAn editor selection holds one or more selection ranges.\n*/\nclass EditorSelection {\n constructor(\n /**\n The ranges in the selection, sorted by position. Ranges cannot\n overlap (but they may touch, if they aren't empty).\n */\n ranges, \n /**\n The index of the _main_ range in the selection (which is\n usually the range that was added last).\n */\n mainIndex) {\n this.ranges = ranges;\n this.mainIndex = mainIndex;\n }\n /**\n Map a selection through a change. Used to adjust the selection\n position for changes.\n */\n map(change, assoc = -1) {\n if (change.empty)\n return this;\n return EditorSelection.create(this.ranges.map(r => r.map(change, assoc)), this.mainIndex);\n }\n /**\n Compare this selection to another selection.\n */\n eq(other) {\n if (this.ranges.length != other.ranges.length ||\n this.mainIndex != other.mainIndex)\n return false;\n for (let i = 0; i < this.ranges.length; i++)\n if (!this.ranges[i].eq(other.ranges[i]))\n return false;\n return true;\n }\n /**\n Get the primary selection range. Usually, you should make sure\n your code applies to _all_ ranges, by using methods like\n [`changeByRange`](https://codemirror.net/6/docs/ref/#state.EditorState.changeByRange).\n */\n get main() { return this.ranges[this.mainIndex]; }\n /**\n Make sure the selection only has one range. Returns a selection\n holding only the main range from this selection.\n */\n asSingle() {\n return this.ranges.length == 1 ? this : new EditorSelection([this.main], 0);\n }\n /**\n Extend this selection with an extra range.\n */\n addRange(range, main = true) {\n return EditorSelection.create([range].concat(this.ranges), main ? 0 : this.mainIndex + 1);\n }\n /**\n Replace a given range with another range, and then normalize the\n selection to merge and sort ranges if necessary.\n */\n replaceRange(range, which = this.mainIndex) {\n let ranges = this.ranges.slice();\n ranges[which] = range;\n return EditorSelection.create(ranges, this.mainIndex);\n }\n /**\n Convert this selection to an object that can be serialized to\n JSON.\n */\n toJSON() {\n return { ranges: this.ranges.map(r => r.toJSON()), main: this.mainIndex };\n }\n /**\n Create a selection from a JSON representation.\n */\n static fromJSON(json) {\n if (!json || !Array.isArray(json.ranges) || typeof json.main != \"number\" || json.main >= json.ranges.length)\n throw new RangeError(\"Invalid JSON representation for EditorSelection\");\n return new EditorSelection(json.ranges.map((r) => SelectionRange.fromJSON(r)), json.main);\n }\n /**\n Create a selection holding a single range.\n */\n static single(anchor, head = anchor) {\n return new EditorSelection([EditorSelection.range(anchor, head)], 0);\n }\n /**\n Sort and merge the given set of ranges, creating a valid\n selection.\n */\n static create(ranges, mainIndex = 0) {\n if (ranges.length == 0)\n throw new RangeError(\"A selection needs at least one range\");\n for (let pos = 0, i = 0; i < ranges.length; i++) {\n let range = ranges[i];\n if (range.empty ? range.from <= pos : range.from < pos)\n return EditorSelection.normalized(ranges.slice(), mainIndex);\n pos = range.to;\n }\n return new EditorSelection(ranges, mainIndex);\n }\n /**\n Create a cursor selection range at the given position. You can\n safely ignore the optional arguments in most situations.\n */\n static cursor(pos, assoc = 0, bidiLevel, goalColumn) {\n return SelectionRange.create(pos, pos, (assoc == 0 ? 0 : assoc < 0 ? 8 /* RangeFlag.AssocBefore */ : 16 /* RangeFlag.AssocAfter */) |\n (bidiLevel == null ? 7 : Math.min(6, bidiLevel)) |\n ((goalColumn !== null && goalColumn !== void 0 ? goalColumn : 16777215 /* RangeFlag.NoGoalColumn */) << 6 /* RangeFlag.GoalColumnOffset */));\n }\n /**\n Create a selection range.\n */\n static range(anchor, head, goalColumn, bidiLevel) {\n let flags = ((goalColumn !== null && goalColumn !== void 0 ? goalColumn : 16777215 /* RangeFlag.NoGoalColumn */) << 6 /* RangeFlag.GoalColumnOffset */) |\n (bidiLevel == null ? 7 : Math.min(6, bidiLevel));\n return head < anchor ? SelectionRange.create(head, anchor, 32 /* RangeFlag.Inverted */ | 16 /* RangeFlag.AssocAfter */ | flags)\n : SelectionRange.create(anchor, head, (head > anchor ? 8 /* RangeFlag.AssocBefore */ : 0) | flags);\n }\n /**\n @internal\n */\n static normalized(ranges, mainIndex = 0) {\n let main = ranges[mainIndex];\n ranges.sort((a, b) => a.from - b.from);\n mainIndex = ranges.indexOf(main);\n for (let i = 1; i < ranges.length; i++) {\n let range = ranges[i], prev = ranges[i - 1];\n if (range.empty ? range.from <= prev.to : range.from < prev.to) {\n let from = prev.from, to = Math.max(range.to, prev.to);\n if (i <= mainIndex)\n mainIndex--;\n ranges.splice(--i, 2, range.anchor > range.head ? EditorSelection.range(to, from) : EditorSelection.range(from, to));\n }\n }\n return new EditorSelection(ranges, mainIndex);\n }\n}\nfunction checkSelection(selection, docLength) {\n for (let range of selection.ranges)\n if (range.to > docLength)\n throw new RangeError(\"Selection points outside of document\");\n}\n\nlet nextID = 0;\n/**\nA facet is a labeled value that is associated with an editor\nstate. It takes inputs from any number of extensions, and combines\nthose into a single output value.\n\nExamples of uses of facets are the [tab\nsize](https://codemirror.net/6/docs/ref/#state.EditorState^tabSize), [editor\nattributes](https://codemirror.net/6/docs/ref/#view.EditorView^editorAttributes), and [update\nlisteners](https://codemirror.net/6/docs/ref/#view.EditorView^updateListener).\n\nNote that `Facet` instances can be used anywhere where\n[`FacetReader`](https://codemirror.net/6/docs/ref/#state.FacetReader) is expected.\n*/\nclass Facet {\n constructor(\n /**\n @internal\n */\n combine, \n /**\n @internal\n */\n compareInput, \n /**\n @internal\n */\n compare, isStatic, enables) {\n this.combine = combine;\n this.compareInput = compareInput;\n this.compare = compare;\n this.isStatic = isStatic;\n /**\n @internal\n */\n this.id = nextID++;\n this.default = combine([]);\n this.extensions = typeof enables == \"function\" ? enables(this) : enables;\n }\n /**\n Returns a facet reader for this facet, which can be used to\n [read](https://codemirror.net/6/docs/ref/#state.EditorState.facet) it but not to define values for it.\n */\n get reader() { return this; }\n /**\n Define a new facet.\n */\n static define(config = {}) {\n return new Facet(config.combine || ((a) => a), config.compareInput || ((a, b) => a === b), config.compare || (!config.combine ? sameArray : (a, b) => a === b), !!config.static, config.enables);\n }\n /**\n Returns an extension that adds the given value to this facet.\n */\n of(value) {\n return new FacetProvider([], this, 0 /* Provider.Static */, value);\n }\n /**\n Create an extension that computes a value for the facet from a\n state. You must take care to declare the parts of the state that\n this value depends on, since your function is only called again\n for a new state when one of those parts changed.\n \n In cases where your value depends only on a single field, you'll\n want to use the [`from`](https://codemirror.net/6/docs/ref/#state.Facet.from) method instead.\n */\n compute(deps, get) {\n if (this.isStatic)\n throw new Error(\"Can't compute a static facet\");\n return new FacetProvider(deps, this, 1 /* Provider.Single */, get);\n }\n /**\n Create an extension that computes zero or more values for this\n facet from a state.\n */\n computeN(deps, get) {\n if (this.isStatic)\n throw new Error(\"Can't compute a static facet\");\n return new FacetProvider(deps, this, 2 /* Provider.Multi */, get);\n }\n from(field, get) {\n if (!get)\n get = x => x;\n return this.compute([field], state => get(state.field(field)));\n }\n}\nfunction sameArray(a, b) {\n return a == b || a.length == b.length && a.every((e, i) => e === b[i]);\n}\nclass FacetProvider {\n constructor(dependencies, facet, type, value) {\n this.dependencies = dependencies;\n this.facet = facet;\n this.type = type;\n this.value = value;\n this.id = nextID++;\n }\n dynamicSlot(addresses) {\n var _a;\n let getter = this.value;\n let compare = this.facet.compareInput;\n let id = this.id, idx = addresses[id] >> 1, multi = this.type == 2 /* Provider.Multi */;\n let depDoc = false, depSel = false, depAddrs = [];\n for (let dep of this.dependencies) {\n if (dep == \"doc\")\n depDoc = true;\n else if (dep == \"selection\")\n depSel = true;\n else if ((((_a = addresses[dep.id]) !== null && _a !== void 0 ? _a : 1) & 1) == 0)\n depAddrs.push(addresses[dep.id]);\n }\n return {\n create(state) {\n state.values[idx] = getter(state);\n return 1 /* SlotStatus.Changed */;\n },\n update(state, tr) {\n if ((depDoc && tr.docChanged) || (depSel && (tr.docChanged || tr.selection)) || ensureAll(state, depAddrs)) {\n let newVal = getter(state);\n if (multi ? !compareArray(newVal, state.values[idx], compare) : !compare(newVal, state.values[idx])) {\n state.values[idx] = newVal;\n return 1 /* SlotStatus.Changed */;\n }\n }\n return 0;\n },\n reconfigure: (state, oldState) => {\n let newVal, oldAddr = oldState.config.address[id];\n if (oldAddr != null) {\n let oldVal = getAddr(oldState, oldAddr);\n if (this.dependencies.every(dep => {\n return dep instanceof Facet ? oldState.facet(dep) === state.facet(dep) :\n dep instanceof StateField ? oldState.field(dep, false) == state.field(dep, false) : true;\n }) || (multi ? compareArray(newVal = getter(state), oldVal, compare) : compare(newVal = getter(state), oldVal))) {\n state.values[idx] = oldVal;\n return 0;\n }\n }\n else {\n newVal = getter(state);\n }\n state.values[idx] = newVal;\n return 1 /* SlotStatus.Changed */;\n }\n };\n }\n}\nfunction compareArray(a, b, compare) {\n if (a.length != b.length)\n return false;\n for (let i = 0; i < a.length; i++)\n if (!compare(a[i], b[i]))\n return false;\n return true;\n}\nfunction ensureAll(state, addrs) {\n let changed = false;\n for (let addr of addrs)\n if (ensureAddr(state, addr) & 1 /* SlotStatus.Changed */)\n changed = true;\n return changed;\n}\nfunction dynamicFacetSlot(addresses, facet, providers) {\n let providerAddrs = providers.map(p => addresses[p.id]);\n let providerTypes = providers.map(p => p.type);\n let dynamic = providerAddrs.filter(p => !(p & 1));\n let idx = addresses[facet.id] >> 1;\n function get(state) {\n let values = [];\n for (let i = 0; i < providerAddrs.length; i++) {\n let value = getAddr(state, providerAddrs[i]);\n if (providerTypes[i] == 2 /* Provider.Multi */)\n for (let val of value)\n values.push(val);\n else\n values.push(value);\n }\n return facet.combine(values);\n }\n return {\n create(state) {\n for (let addr of providerAddrs)\n ensureAddr(state, addr);\n state.values[idx] = get(state);\n return 1 /* SlotStatus.Changed */;\n },\n update(state, tr) {\n if (!ensureAll(state, dynamic))\n return 0;\n let value = get(state);\n if (facet.compare(value, state.values[idx]))\n return 0;\n state.values[idx] = value;\n return 1 /* SlotStatus.Changed */;\n },\n reconfigure(state, oldState) {\n let depChanged = ensureAll(state, providerAddrs);\n let oldProviders = oldState.config.facets[facet.id], oldValue = oldState.facet(facet);\n if (oldProviders && !depChanged && sameArray(providers, oldProviders)) {\n state.values[idx] = oldValue;\n return 0;\n }\n let value = get(state);\n if (facet.compare(value, oldValue)) {\n state.values[idx] = oldValue;\n return 0;\n }\n state.values[idx] = value;\n return 1 /* SlotStatus.Changed */;\n }\n };\n}\nconst initField = /*@__PURE__*/Facet.define({ static: true });\n/**\nFields can store additional information in an editor state, and\nkeep it in sync with the rest of the state.\n*/\nclass StateField {\n constructor(\n /**\n @internal\n */\n id, createF, updateF, compareF, \n /**\n @internal\n */\n spec) {\n this.id = id;\n this.createF = createF;\n this.updateF = updateF;\n this.compareF = compareF;\n this.spec = spec;\n /**\n @internal\n */\n this.provides = undefined;\n }\n /**\n Define a state field.\n */\n static define(config) {\n let field = new StateField(nextID++, config.create, config.update, config.compare || ((a, b) => a === b), config);\n if (config.provide)\n field.provides = config.provide(field);\n return field;\n }\n create(state) {\n let init = state.facet(initField).find(i => i.field == this);\n return ((init === null || init === void 0 ? void 0 : init.create) || this.createF)(state);\n }\n /**\n @internal\n */\n slot(addresses) {\n let idx = addresses[this.id] >> 1;\n return {\n create: (state) => {\n state.values[idx] = this.create(state);\n return 1 /* SlotStatus.Changed */;\n },\n update: (state, tr) => {\n let oldVal = state.values[idx];\n let value = this.updateF(oldVal, tr);\n if (this.compareF(oldVal, value))\n return 0;\n state.values[idx] = value;\n return 1 /* SlotStatus.Changed */;\n },\n reconfigure: (state, oldState) => {\n if (oldState.config.address[this.id] != null) {\n state.values[idx] = oldState.field(this);\n return 0;\n }\n state.values[idx] = this.create(state);\n return 1 /* SlotStatus.Changed */;\n }\n };\n }\n /**\n Returns an extension that enables this field and overrides the\n way it is initialized. Can be useful when you need to provide a\n non-default starting value for the field.\n */\n init(create) {\n return [this, initField.of({ field: this, create })];\n }\n /**\n State field instances can be used as\n [`Extension`](https://codemirror.net/6/docs/ref/#state.Extension) values to enable the field in a\n given state.\n */\n get extension() { return this; }\n}\nconst Prec_ = { lowest: 4, low: 3, default: 2, high: 1, highest: 0 };\nfunction prec(value) {\n return (ext) => new PrecExtension(ext, value);\n}\n/**\nBy default extensions are registered in the order they are found\nin the flattened form of nested array that was provided.\nIndividual extension values can be assigned a precedence to\noverride this. Extensions that do not have a precedence set get\nthe precedence of the nearest parent with a precedence, or\n[`default`](https://codemirror.net/6/docs/ref/#state.Prec.default) if there is no such parent. The\nfinal ordering of extensions is determined by first sorting by\nprecedence and then by order within each precedence.\n*/\nconst Prec = {\n /**\n The highest precedence level, for extensions that should end up\n near the start of the precedence ordering.\n */\n highest: /*@__PURE__*/prec(Prec_.highest),\n /**\n A higher-than-default precedence, for extensions that should\n come before those with default precedence.\n */\n high: /*@__PURE__*/prec(Prec_.high),\n /**\n The default precedence, which is also used for extensions\n without an explicit precedence.\n */\n default: /*@__PURE__*/prec(Prec_.default),\n /**\n A lower-than-default precedence.\n */\n low: /*@__PURE__*/prec(Prec_.low),\n /**\n The lowest precedence level. Meant for things that should end up\n near the end of the extension order.\n */\n lowest: /*@__PURE__*/prec(Prec_.lowest)\n};\nclass PrecExtension {\n constructor(inner, prec) {\n this.inner = inner;\n this.prec = prec;\n }\n}\n/**\nExtension compartments can be used to make a configuration\ndynamic. By [wrapping](https://codemirror.net/6/docs/ref/#state.Compartment.of) part of your\nconfiguration in a compartment, you can later\n[replace](https://codemirror.net/6/docs/ref/#state.Compartment.reconfigure) that part through a\ntransaction.\n*/\nclass Compartment {\n /**\n Create an instance of this compartment to add to your [state\n configuration](https://codemirror.net/6/docs/ref/#state.EditorStateConfig.extensions).\n */\n of(ext) { return new CompartmentInstance(this, ext); }\n /**\n Create an [effect](https://codemirror.net/6/docs/ref/#state.TransactionSpec.effects) that\n reconfigures this compartment.\n */\n reconfigure(content) {\n return Compartment.reconfigure.of({ compartment: this, extension: content });\n }\n /**\n Get the current content of the compartment in the state, or\n `undefined` if it isn't present.\n */\n get(state) {\n return state.config.compartments.get(this);\n }\n}\nclass CompartmentInstance {\n constructor(compartment, inner) {\n this.compartment = compartment;\n this.inner = inner;\n }\n}\nclass Configuration {\n constructor(base, compartments, dynamicSlots, address, staticValues, facets) {\n this.base = base;\n this.compartments = compartments;\n this.dynamicSlots = dynamicSlots;\n this.address = address;\n this.staticValues = staticValues;\n this.facets = facets;\n this.statusTemplate = [];\n while (this.statusTemplate.length < dynamicSlots.length)\n this.statusTemplate.push(0 /* SlotStatus.Unresolved */);\n }\n staticFacet(facet) {\n let addr = this.address[facet.id];\n return addr == null ? facet.default : this.staticValues[addr >> 1];\n }\n static resolve(base, compartments, oldState) {\n let fields = [];\n let facets = Object.create(null);\n let newCompartments = new Map();\n for (let ext of flatten(base, compartments, newCompartments)) {\n if (ext instanceof StateField)\n fields.push(ext);\n else\n (facets[ext.facet.id] || (facets[ext.facet.id] = [])).push(ext);\n }\n let address = Object.create(null);\n let staticValues = [];\n let dynamicSlots = [];\n for (let field of fields) {\n address[field.id] = dynamicSlots.length << 1;\n dynamicSlots.push(a => field.slot(a));\n }\n let oldFacets = oldState === null || oldState === void 0 ? void 0 : oldState.config.facets;\n for (let id in facets) {\n let providers = facets[id], facet = providers[0].facet;\n let oldProviders = oldFacets && oldFacets[id] || [];\n if (providers.every(p => p.type == 0 /* Provider.Static */)) {\n address[facet.id] = (staticValues.length << 1) | 1;\n if (sameArray(oldProviders, providers)) {\n staticValues.push(oldState.facet(facet));\n }\n else {\n let value = facet.combine(providers.map(p => p.value));\n staticValues.push(oldState && facet.compare(value, oldState.facet(facet)) ? oldState.facet(facet) : value);\n }\n }\n else {\n for (let p of providers) {\n if (p.type == 0 /* Provider.Static */) {\n address[p.id] = (staticValues.length << 1) | 1;\n staticValues.push(p.value);\n }\n else {\n address[p.id] = dynamicSlots.length << 1;\n dynamicSlots.push(a => p.dynamicSlot(a));\n }\n }\n address[facet.id] = dynamicSlots.length << 1;\n dynamicSlots.push(a => dynamicFacetSlot(a, facet, providers));\n }\n }\n let dynamic = dynamicSlots.map(f => f(address));\n return new Configuration(base, newCompartments, dynamic, address, staticValues, facets);\n }\n}\nfunction flatten(extension, compartments, newCompartments) {\n let result = [[], [], [], [], []];\n let seen = new Map();\n function inner(ext, prec) {\n let known = seen.get(ext);\n if (known != null) {\n if (known <= prec)\n return;\n let found = result[known].indexOf(ext);\n if (found > -1)\n result[known].splice(found, 1);\n if (ext instanceof CompartmentInstance)\n newCompartments.delete(ext.compartment);\n }\n seen.set(ext, prec);\n if (Array.isArray(ext)) {\n for (let e of ext)\n inner(e, prec);\n }\n else if (ext instanceof CompartmentInstance) {\n if (newCompartments.has(ext.compartment))\n throw new RangeError(`Duplicate use of compartment in extensions`);\n let content = compartments.get(ext.compartment) || ext.inner;\n newCompartments.set(ext.compartment, content);\n inner(content, prec);\n }\n else if (ext instanceof PrecExtension) {\n inner(ext.inner, ext.prec);\n }\n else if (ext instanceof StateField) {\n result[prec].push(ext);\n if (ext.provides)\n inner(ext.provides, prec);\n }\n else if (ext instanceof FacetProvider) {\n result[prec].push(ext);\n if (ext.facet.extensions)\n inner(ext.facet.extensions, Prec_.default);\n }\n else {\n let content = ext.extension;\n if (!content)\n throw new Error(`Unrecognized extension value in extension set (${ext}). This sometimes happens because multiple instances of @codemirror/state are loaded, breaking instanceof checks.`);\n inner(content, prec);\n }\n }\n inner(extension, Prec_.default);\n return result.reduce((a, b) => a.concat(b));\n}\nfunction ensureAddr(state, addr) {\n if (addr & 1)\n return 2 /* SlotStatus.Computed */;\n let idx = addr >> 1;\n let status = state.status[idx];\n if (status == 4 /* SlotStatus.Computing */)\n throw new Error(\"Cyclic dependency between fields and/or facets\");\n if (status & 2 /* SlotStatus.Computed */)\n return status;\n state.status[idx] = 4 /* SlotStatus.Computing */;\n let changed = state.computeSlot(state, state.config.dynamicSlots[idx]);\n return state.status[idx] = 2 /* SlotStatus.Computed */ | changed;\n}\nfunction getAddr(state, addr) {\n return addr & 1 ? state.config.staticValues[addr >> 1] : state.values[addr >> 1];\n}\n\nconst languageData = /*@__PURE__*/Facet.define();\nconst allowMultipleSelections = /*@__PURE__*/Facet.define({\n combine: values => values.some(v => v),\n static: true\n});\nconst lineSeparator = /*@__PURE__*/Facet.define({\n combine: values => values.length ? values[0] : undefined,\n static: true\n});\nconst changeFilter = /*@__PURE__*/Facet.define();\nconst transactionFilter = /*@__PURE__*/Facet.define();\nconst transactionExtender = /*@__PURE__*/Facet.define();\nconst readOnly = /*@__PURE__*/Facet.define({\n combine: values => values.length ? values[0] : false\n});\n\n/**\nAnnotations are tagged values that are used to add metadata to\ntransactions in an extensible way. They should be used to model\nthings that effect the entire transaction (such as its [time\nstamp](https://codemirror.net/6/docs/ref/#state.Transaction^time) or information about its\n[origin](https://codemirror.net/6/docs/ref/#state.Transaction^userEvent)). For effects that happen\n_alongside_ the other changes made by the transaction, [state\neffects](https://codemirror.net/6/docs/ref/#state.StateEffect) are more appropriate.\n*/\nclass Annotation {\n /**\n @internal\n */\n constructor(\n /**\n The annotation type.\n */\n type, \n /**\n The value of this annotation.\n */\n value) {\n this.type = type;\n this.value = value;\n }\n /**\n Define a new type of annotation.\n */\n static define() { return new AnnotationType(); }\n}\n/**\nMarker that identifies a type of [annotation](https://codemirror.net/6/docs/ref/#state.Annotation).\n*/\nclass AnnotationType {\n /**\n Create an instance of this annotation.\n */\n of(value) { return new Annotation(this, value); }\n}\n/**\nRepresentation of a type of state effect. Defined with\n[`StateEffect.define`](https://codemirror.net/6/docs/ref/#state.StateEffect^define).\n*/\nclass StateEffectType {\n /**\n @internal\n */\n constructor(\n // The `any` types in these function types are there to work\n // around TypeScript issue #37631, where the type guard on\n // `StateEffect.is` mysteriously stops working when these properly\n // have type `Value`.\n /**\n @internal\n */\n map) {\n this.map = map;\n }\n /**\n Create a [state effect](https://codemirror.net/6/docs/ref/#state.StateEffect) instance of this\n type.\n */\n of(value) { return new StateEffect(this, value); }\n}\n/**\nState effects can be used to represent additional effects\nassociated with a [transaction](https://codemirror.net/6/docs/ref/#state.Transaction.effects). They\nare often useful to model changes to custom [state\nfields](https://codemirror.net/6/docs/ref/#state.StateField), when those changes aren't implicit in\ndocument or selection changes.\n*/\nclass StateEffect {\n /**\n @internal\n */\n constructor(\n /**\n @internal\n */\n type, \n /**\n The value of this effect.\n */\n value) {\n this.type = type;\n this.value = value;\n }\n /**\n Map this effect through a position mapping. Will return\n `undefined` when that ends up deleting the effect.\n */\n map(mapping) {\n let mapped = this.type.map(this.value, mapping);\n return mapped === undefined ? undefined : mapped == this.value ? this : new StateEffect(this.type, mapped);\n }\n /**\n Tells you whether this effect object is of a given\n [type](https://codemirror.net/6/docs/ref/#state.StateEffectType).\n */\n is(type) { return this.type == type; }\n /**\n Define a new effect type. The type parameter indicates the type\n of values that his effect holds. It should be a type that\n doesn't include `undefined`, since that is used in\n [mapping](https://codemirror.net/6/docs/ref/#state.StateEffect.map) to indicate that an effect is\n removed.\n */\n static define(spec = {}) {\n return new StateEffectType(spec.map || (v => v));\n }\n /**\n Map an array of effects through a change set.\n */\n static mapEffects(effects, mapping) {\n if (!effects.length)\n return effects;\n let result = [];\n for (let effect of effects) {\n let mapped = effect.map(mapping);\n if (mapped)\n result.push(mapped);\n }\n return result;\n }\n}\n/**\nThis effect can be used to reconfigure the root extensions of\nthe editor. Doing this will discard any extensions\n[appended](https://codemirror.net/6/docs/ref/#state.StateEffect^appendConfig), but does not reset\nthe content of [reconfigured](https://codemirror.net/6/docs/ref/#state.Compartment.reconfigure)\ncompartments.\n*/\nStateEffect.reconfigure = /*@__PURE__*/StateEffect.define();\n/**\nAppend extensions to the top-level configuration of the editor.\n*/\nStateEffect.appendConfig = /*@__PURE__*/StateEffect.define();\n/**\nChanges to the editor state are grouped into transactions.\nTypically, a user action creates a single transaction, which may\ncontain any number of document changes, may change the selection,\nor have other effects. Create a transaction by calling\n[`EditorState.update`](https://codemirror.net/6/docs/ref/#state.EditorState.update), or immediately\ndispatch one by calling\n[`EditorView.dispatch`](https://codemirror.net/6/docs/ref/#view.EditorView.dispatch).\n*/\nclass Transaction {\n constructor(\n /**\n The state from which the transaction starts.\n */\n startState, \n /**\n The document changes made by this transaction.\n */\n changes, \n /**\n The selection set by this transaction, or undefined if it\n doesn't explicitly set a selection.\n */\n selection, \n /**\n The effects added to the transaction.\n */\n effects, \n /**\n @internal\n */\n annotations, \n /**\n Whether the selection should be scrolled into view after this\n transaction is dispatched.\n */\n scrollIntoView) {\n this.startState = startState;\n this.changes = changes;\n this.selection = selection;\n this.effects = effects;\n this.annotations = annotations;\n this.scrollIntoView = scrollIntoView;\n /**\n @internal\n */\n this._doc = null;\n /**\n @internal\n */\n this._state = null;\n if (selection)\n checkSelection(selection, changes.newLength);\n if (!annotations.some((a) => a.type == Transaction.time))\n this.annotations = annotations.concat(Transaction.time.of(Date.now()));\n }\n /**\n @internal\n */\n static create(startState, changes, selection, effects, annotations, scrollIntoView) {\n return new Transaction(startState, changes, selection, effects, annotations, scrollIntoView);\n }\n /**\n The new document produced by the transaction. Contrary to\n [`.state`](https://codemirror.net/6/docs/ref/#state.Transaction.state)`.doc`, accessing this won't\n force the entire new state to be computed right away, so it is\n recommended that [transaction\n filters](https://codemirror.net/6/docs/ref/#state.EditorState^transactionFilter) use this getter\n when they need to look at the new document.\n */\n get newDoc() {\n return this._doc || (this._doc = this.changes.apply(this.startState.doc));\n }\n /**\n The new selection produced by the transaction. If\n [`this.selection`](https://codemirror.net/6/docs/ref/#state.Transaction.selection) is undefined,\n this will [map](https://codemirror.net/6/docs/ref/#state.EditorSelection.map) the start state's\n current selection through the changes made by the transaction.\n */\n get newSelection() {\n return this.selection || this.startState.selection.map(this.changes);\n }\n /**\n The new state created by the transaction. Computed on demand\n (but retained for subsequent access), so it is recommended not to\n access it in [transaction\n filters](https://codemirror.net/6/docs/ref/#state.EditorState^transactionFilter) when possible.\n */\n get state() {\n if (!this._state)\n this.startState.applyTransaction(this);\n return this._state;\n }\n /**\n Get the value of the given annotation type, if any.\n */\n annotation(type) {\n for (let ann of this.annotations)\n if (ann.type == type)\n return ann.value;\n return undefined;\n }\n /**\n Indicates whether the transaction changed the document.\n */\n get docChanged() { return !this.changes.empty; }\n /**\n Indicates whether this transaction reconfigures the state\n (through a [configuration compartment](https://codemirror.net/6/docs/ref/#state.Compartment) or\n with a top-level configuration\n [effect](https://codemirror.net/6/docs/ref/#state.StateEffect^reconfigure).\n */\n get reconfigured() { return this.startState.config != this.state.config; }\n /**\n Returns true if the transaction has a [user\n event](https://codemirror.net/6/docs/ref/#state.Transaction^userEvent) annotation that is equal to\n or more specific than `event`. For example, if the transaction\n has `\"select.pointer\"` as user event, `\"select\"` and\n `\"select.pointer\"` will match it.\n */\n isUserEvent(event) {\n let e = this.annotation(Transaction.userEvent);\n return !!(e && (e == event || e.length > event.length && e.slice(0, event.length) == event && e[event.length] == \".\"));\n }\n}\n/**\nAnnotation used to store transaction timestamps. Automatically\nadded to every transaction, holding `Date.now()`.\n*/\nTransaction.time = /*@__PURE__*/Annotation.define();\n/**\nAnnotation used to associate a transaction with a user interface\nevent. Holds a string identifying the event, using a\ndot-separated format to support attaching more specific\ninformation. The events used by the core libraries are:\n\n - `\"input\"` when content is entered\n - `\"input.type\"` for typed input\n - `\"input.type.compose\"` for composition\n - `\"input.paste\"` for pasted input\n - `\"input.drop\"` when adding content with drag-and-drop\n - `\"input.complete\"` when autocompleting\n - `\"delete\"` when the user deletes content\n - `\"delete.selection\"` when deleting the selection\n - `\"delete.forward\"` when deleting forward from the selection\n - `\"delete.backward\"` when deleting backward from the selection\n - `\"delete.cut\"` when cutting to the clipboard\n - `\"move\"` when content is moved\n - `\"move.drop\"` when content is moved within the editor through drag-and-drop\n - `\"select\"` when explicitly changing the selection\n - `\"select.pointer\"` when selecting with a mouse or other pointing device\n - `\"undo\"` and `\"redo\"` for history actions\n\nUse [`isUserEvent`](https://codemirror.net/6/docs/ref/#state.Transaction.isUserEvent) to check\nwhether the annotation matches a given event.\n*/\nTransaction.userEvent = /*@__PURE__*/Annotation.define();\n/**\nAnnotation indicating whether a transaction should be added to\nthe undo history or not.\n*/\nTransaction.addToHistory = /*@__PURE__*/Annotation.define();\n/**\nAnnotation indicating (when present and true) that a transaction\nrepresents a change made by some other actor, not the user. This\nis used, for example, to tag other people's changes in\ncollaborative editing.\n*/\nTransaction.remote = /*@__PURE__*/Annotation.define();\nfunction joinRanges(a, b) {\n let result = [];\n for (let iA = 0, iB = 0;;) {\n let from, to;\n if (iA < a.length && (iB == b.length || b[iB] >= a[iA])) {\n from = a[iA++];\n to = a[iA++];\n }\n else if (iB < b.length) {\n from = b[iB++];\n to = b[iB++];\n }\n else\n return result;\n if (!result.length || result[result.length - 1] < from)\n result.push(from, to);\n else if (result[result.length - 1] < to)\n result[result.length - 1] = to;\n }\n}\nfunction mergeTransaction(a, b, sequential) {\n var _a;\n let mapForA, mapForB, changes;\n if (sequential) {\n mapForA = b.changes;\n mapForB = ChangeSet.empty(b.changes.length);\n changes = a.changes.compose(b.changes);\n }\n else {\n mapForA = b.changes.map(a.changes);\n mapForB = a.changes.mapDesc(b.changes, true);\n changes = a.changes.compose(mapForA);\n }\n return {\n changes,\n selection: b.selection ? b.selection.map(mapForB) : (_a = a.selection) === null || _a === void 0 ? void 0 : _a.map(mapForA),\n effects: StateEffect.mapEffects(a.effects, mapForA).concat(StateEffect.mapEffects(b.effects, mapForB)),\n annotations: a.annotations.length ? a.annotations.concat(b.annotations) : b.annotations,\n scrollIntoView: a.scrollIntoView || b.scrollIntoView\n };\n}\nfunction resolveTransactionInner(state, spec, docSize) {\n let sel = spec.selection, annotations = asArray(spec.annotations);\n if (spec.userEvent)\n annotations = annotations.concat(Transaction.userEvent.of(spec.userEvent));\n return {\n changes: spec.changes instanceof ChangeSet ? spec.changes\n : ChangeSet.of(spec.changes || [], docSize, state.facet(lineSeparator)),\n selection: sel && (sel instanceof EditorSelection ? sel : EditorSelection.single(sel.anchor, sel.head)),\n effects: asArray(spec.effects),\n annotations,\n scrollIntoView: !!spec.scrollIntoView\n };\n}\nfunction resolveTransaction(state, specs, filter) {\n let s = resolveTransactionInner(state, specs.length ? specs[0] : {}, state.doc.length);\n if (specs.length && specs[0].filter === false)\n filter = false;\n for (let i = 1; i < specs.length; i++) {\n if (specs[i].filter === false)\n filter = false;\n let seq = !!specs[i].sequential;\n s = mergeTransaction(s, resolveTransactionInner(state, specs[i], seq ? s.changes.newLength : state.doc.length), seq);\n }\n let tr = Transaction.create(state, s.changes, s.selection, s.effects, s.annotations, s.scrollIntoView);\n return extendTransaction(filter ? filterTransaction(tr) : tr);\n}\n// Finish a transaction by applying filters if necessary.\nfunction filterTransaction(tr) {\n let state = tr.startState;\n // Change filters\n let result = true;\n for (let filter of state.facet(changeFilter)) {\n let value = filter(tr);\n if (value === false) {\n result = false;\n break;\n }\n if (Array.isArray(value))\n result = result === true ? value : joinRanges(result, value);\n }\n if (result !== true) {\n let changes, back;\n if (result === false) {\n back = tr.changes.invertedDesc;\n changes = ChangeSet.empty(state.doc.length);\n }\n else {\n let filtered = tr.changes.filter(result);\n changes = filtered.changes;\n back = filtered.filtered.mapDesc(filtered.changes).invertedDesc;\n }\n tr = Transaction.create(state, changes, tr.selection && tr.selection.map(back), StateEffect.mapEffects(tr.effects, back), tr.annotations, tr.scrollIntoView);\n }\n // Transaction filters\n let filters = state.facet(transactionFilter);\n for (let i = filters.length - 1; i >= 0; i--) {\n let filtered = filters[i](tr);\n if (filtered instanceof Transaction)\n tr = filtered;\n else if (Array.isArray(filtered) && filtered.length == 1 && filtered[0] instanceof Transaction)\n tr = filtered[0];\n else\n tr = resolveTransaction(state, asArray(filtered), false);\n }\n return tr;\n}\nfunction extendTransaction(tr) {\n let state = tr.startState, extenders = state.facet(transactionExtender), spec = tr;\n for (let i = extenders.length - 1; i >= 0; i--) {\n let extension = extenders[i](tr);\n if (extension && Object.keys(extension).length)\n spec = mergeTransaction(spec, resolveTransactionInner(state, extension, tr.changes.newLength), true);\n }\n return spec == tr ? tr : Transaction.create(state, tr.changes, tr.selection, spec.effects, spec.annotations, spec.scrollIntoView);\n}\nconst none = [];\nfunction asArray(value) {\n return value == null ? none : Array.isArray(value) ? value : [value];\n}\n\n/**\nThe categories produced by a [character\ncategorizer](https://codemirror.net/6/docs/ref/#state.EditorState.charCategorizer). These are used\ndo things like selecting by word.\n*/\nvar CharCategory = /*@__PURE__*/(function (CharCategory) {\n /**\n Word characters.\n */\n CharCategory[CharCategory[\"Word\"] = 0] = \"Word\";\n /**\n Whitespace.\n */\n CharCategory[CharCategory[\"Space\"] = 1] = \"Space\";\n /**\n Anything else.\n */\n CharCategory[CharCategory[\"Other\"] = 2] = \"Other\";\nreturn CharCategory})(CharCategory || (CharCategory = {}));\nconst nonASCIISingleCaseWordChar = /[\\u00df\\u0587\\u0590-\\u05f4\\u0600-\\u06ff\\u3040-\\u309f\\u30a0-\\u30ff\\u3400-\\u4db5\\u4e00-\\u9fcc\\uac00-\\ud7af]/;\nlet wordChar;\ntry {\n wordChar = /*@__PURE__*/new RegExp(\"[\\\\p{Alphabetic}\\\\p{Number}_]\", \"u\");\n}\ncatch (_) { }\nfunction hasWordChar(str) {\n if (wordChar)\n return wordChar.test(str);\n for (let i = 0; i < str.length; i++) {\n let ch = str[i];\n if (/\\w/.test(ch) || ch > \"\\x80\" && (ch.toUpperCase() != ch.toLowerCase() || nonASCIISingleCaseWordChar.test(ch)))\n return true;\n }\n return false;\n}\nfunction makeCategorizer(wordChars) {\n return (char) => {\n if (!/\\S/.test(char))\n return CharCategory.Space;\n if (hasWordChar(char))\n return CharCategory.Word;\n for (let i = 0; i < wordChars.length; i++)\n if (char.indexOf(wordChars[i]) > -1)\n return CharCategory.Word;\n return CharCategory.Other;\n };\n}\n\n/**\nThe editor state class is a persistent (immutable) data structure.\nTo update a state, you [create](https://codemirror.net/6/docs/ref/#state.EditorState.update) a\n[transaction](https://codemirror.net/6/docs/ref/#state.Transaction), which produces a _new_ state\ninstance, without modifying the original object.\n\nAs such, _never_ mutate properties of a state directly. That'll\njust break things.\n*/\nclass EditorState {\n constructor(\n /**\n @internal\n */\n config, \n /**\n The current document.\n */\n doc, \n /**\n The current selection.\n */\n selection, \n /**\n @internal\n */\n values, computeSlot, tr) {\n this.config = config;\n this.doc = doc;\n this.selection = selection;\n this.values = values;\n this.status = config.statusTemplate.slice();\n this.computeSlot = computeSlot;\n // Fill in the computed state immediately, so that further queries\n // for it made during the update return this state\n if (tr)\n tr._state = this;\n for (let i = 0; i < this.config.dynamicSlots.length; i++)\n ensureAddr(this, i << 1);\n this.computeSlot = null;\n }\n field(field, require = true) {\n let addr = this.config.address[field.id];\n if (addr == null) {\n if (require)\n throw new RangeError(\"Field is not present in this state\");\n return undefined;\n }\n ensureAddr(this, addr);\n return getAddr(this, addr);\n }\n /**\n Create a [transaction](https://codemirror.net/6/docs/ref/#state.Transaction) that updates this\n state. Any number of [transaction specs](https://codemirror.net/6/docs/ref/#state.TransactionSpec)\n can be passed. Unless\n [`sequential`](https://codemirror.net/6/docs/ref/#state.TransactionSpec.sequential) is set, the\n [changes](https://codemirror.net/6/docs/ref/#state.TransactionSpec.changes) (if any) of each spec\n are assumed to start in the _current_ document (not the document\n produced by previous specs), and its\n [selection](https://codemirror.net/6/docs/ref/#state.TransactionSpec.selection) and\n [effects](https://codemirror.net/6/docs/ref/#state.TransactionSpec.effects) are assumed to refer\n to the document created by its _own_ changes. The resulting\n transaction contains the combined effect of all the different\n specs. For [selection](https://codemirror.net/6/docs/ref/#state.TransactionSpec.selection), later\n specs take precedence over earlier ones.\n */\n update(...specs) {\n return resolveTransaction(this, specs, true);\n }\n /**\n @internal\n */\n applyTransaction(tr) {\n let conf = this.config, { base, compartments } = conf;\n for (let effect of tr.effects) {\n if (effect.is(Compartment.reconfigure)) {\n if (conf) {\n compartments = new Map;\n conf.compartments.forEach((val, key) => compartments.set(key, val));\n conf = null;\n }\n compartments.set(effect.value.compartment, effect.value.extension);\n }\n else if (effect.is(StateEffect.reconfigure)) {\n conf = null;\n base = effect.value;\n }\n else if (effect.is(StateEffect.appendConfig)) {\n conf = null;\n base = asArray(base).concat(effect.value);\n }\n }\n let startValues;\n if (!conf) {\n conf = Configuration.resolve(base, compartments, this);\n let intermediateState = new EditorState(conf, this.doc, this.selection, conf.dynamicSlots.map(() => null), (state, slot) => slot.reconfigure(state, this), null);\n startValues = intermediateState.values;\n }\n else {\n startValues = tr.startState.values.slice();\n }\n new EditorState(conf, tr.newDoc, tr.newSelection, startValues, (state, slot) => slot.update(state, tr), tr);\n }\n /**\n Create a [transaction spec](https://codemirror.net/6/docs/ref/#state.TransactionSpec) that\n replaces every selection range with the given content.\n */\n replaceSelection(text) {\n if (typeof text == \"string\")\n text = this.toText(text);\n return this.changeByRange(range => ({ changes: { from: range.from, to: range.to, insert: text },\n range: EditorSelection.cursor(range.from + text.length) }));\n }\n /**\n Create a set of changes and a new selection by running the given\n function for each range in the active selection. The function\n can return an optional set of changes (in the coordinate space\n of the start document), plus an updated range (in the coordinate\n space of the document produced by the call's own changes). This\n method will merge all the changes and ranges into a single\n changeset and selection, and return it as a [transaction\n spec](https://codemirror.net/6/docs/ref/#state.TransactionSpec), which can be passed to\n [`update`](https://codemirror.net/6/docs/ref/#state.EditorState.update).\n */\n changeByRange(f) {\n let sel = this.selection;\n let result1 = f(sel.ranges[0]);\n let changes = this.changes(result1.changes), ranges = [result1.range];\n let effects = asArray(result1.effects);\n for (let i = 1; i < sel.ranges.length; i++) {\n let result = f(sel.ranges[i]);\n let newChanges = this.changes(result.changes), newMapped = newChanges.map(changes);\n for (let j = 0; j < i; j++)\n ranges[j] = ranges[j].map(newMapped);\n let mapBy = changes.mapDesc(newChanges, true);\n ranges.push(result.range.map(mapBy));\n changes = changes.compose(newMapped);\n effects = StateEffect.mapEffects(effects, newMapped).concat(StateEffect.mapEffects(asArray(result.effects), mapBy));\n }\n return {\n changes,\n selection: EditorSelection.create(ranges, sel.mainIndex),\n effects\n };\n }\n /**\n Create a [change set](https://codemirror.net/6/docs/ref/#state.ChangeSet) from the given change\n description, taking the state's document length and line\n separator into account.\n */\n changes(spec = []) {\n if (spec instanceof ChangeSet)\n return spec;\n return ChangeSet.of(spec, this.doc.length, this.facet(EditorState.lineSeparator));\n }\n /**\n Using the state's [line\n separator](https://codemirror.net/6/docs/ref/#state.EditorState^lineSeparator), create a\n [`Text`](https://codemirror.net/6/docs/ref/#state.Text) instance from the given string.\n */\n toText(string) {\n return Text.of(string.split(this.facet(EditorState.lineSeparator) || DefaultSplit));\n }\n /**\n Return the given range of the document as a string.\n */\n sliceDoc(from = 0, to = this.doc.length) {\n return this.doc.sliceString(from, to, this.lineBreak);\n }\n /**\n Get the value of a state [facet](https://codemirror.net/6/docs/ref/#state.Facet).\n */\n facet(facet) {\n let addr = this.config.address[facet.id];\n if (addr == null)\n return facet.default;\n ensureAddr(this, addr);\n return getAddr(this, addr);\n }\n /**\n Convert this state to a JSON-serializable object. When custom\n fields should be serialized, you can pass them in as an object\n mapping property names (in the resulting object, which should\n not use `doc` or `selection`) to fields.\n */\n toJSON(fields) {\n let result = {\n doc: this.sliceDoc(),\n selection: this.selection.toJSON()\n };\n if (fields)\n for (let prop in fields) {\n let value = fields[prop];\n if (value instanceof StateField && this.config.address[value.id] != null)\n result[prop] = value.spec.toJSON(this.field(fields[prop]), this);\n }\n return result;\n }\n /**\n Deserialize a state from its JSON representation. When custom\n fields should be deserialized, pass the same object you passed\n to [`toJSON`](https://codemirror.net/6/docs/ref/#state.EditorState.toJSON) when serializing as\n third argument.\n */\n static fromJSON(json, config = {}, fields) {\n if (!json || typeof json.doc != \"string\")\n throw new RangeError(\"Invalid JSON representation for EditorState\");\n let fieldInit = [];\n if (fields)\n for (let prop in fields) {\n if (Object.prototype.hasOwnProperty.call(json, prop)) {\n let field = fields[prop], value = json[prop];\n fieldInit.push(field.init(state => field.spec.fromJSON(value, state)));\n }\n }\n return EditorState.create({\n doc: json.doc,\n selection: EditorSelection.fromJSON(json.selection),\n extensions: config.extensions ? fieldInit.concat([config.extensions]) : fieldInit\n });\n }\n /**\n Create a new state. You'll usually only need this when\n initializing an editor—updated states are created by applying\n transactions.\n */\n static create(config = {}) {\n let configuration = Configuration.resolve(config.extensions || [], new Map);\n let doc = config.doc instanceof Text ? config.doc\n : Text.of((config.doc || \"\").split(configuration.staticFacet(EditorState.lineSeparator) || DefaultSplit));\n let selection = !config.selection ? EditorSelection.single(0)\n : config.selection instanceof EditorSelection ? config.selection\n : EditorSelection.single(config.selection.anchor, config.selection.head);\n checkSelection(selection, doc.length);\n if (!configuration.staticFacet(allowMultipleSelections))\n selection = selection.asSingle();\n return new EditorState(configuration, doc, selection, configuration.dynamicSlots.map(() => null), (state, slot) => slot.create(state), null);\n }\n /**\n The size (in columns) of a tab in the document, determined by\n the [`tabSize`](https://codemirror.net/6/docs/ref/#state.EditorState^tabSize) facet.\n */\n get tabSize() { return this.facet(EditorState.tabSize); }\n /**\n Get the proper [line-break](https://codemirror.net/6/docs/ref/#state.EditorState^lineSeparator)\n string for this state.\n */\n get lineBreak() { return this.facet(EditorState.lineSeparator) || \"\\n\"; }\n /**\n Returns true when the editor is\n [configured](https://codemirror.net/6/docs/ref/#state.EditorState^readOnly) to be read-only.\n */\n get readOnly() { return this.facet(readOnly); }\n /**\n Look up a translation for the given phrase (via the\n [`phrases`](https://codemirror.net/6/docs/ref/#state.EditorState^phrases) facet), or return the\n original string if no translation is found.\n \n If additional arguments are passed, they will be inserted in\n place of markers like `$1` (for the first value) and `$2`, etc.\n A single `$` is equivalent to `$1`, and `$$` will produce a\n literal dollar sign.\n */\n phrase(phrase, ...insert) {\n for (let map of this.facet(EditorState.phrases))\n if (Object.prototype.hasOwnProperty.call(map, phrase)) {\n phrase = map[phrase];\n break;\n }\n if (insert.length)\n phrase = phrase.replace(/\\$(\\$|\\d*)/g, (m, i) => {\n if (i == \"$\")\n return \"$\";\n let n = +(i || 1);\n return !n || n > insert.length ? m : insert[n - 1];\n });\n return phrase;\n }\n /**\n Find the values for a given language data field, provided by the\n the [`languageData`](https://codemirror.net/6/docs/ref/#state.EditorState^languageData) facet.\n \n Examples of language data fields are...\n \n - [`\"commentTokens\"`](https://codemirror.net/6/docs/ref/#commands.CommentTokens) for specifying\n comment syntax.\n - [`\"autocomplete\"`](https://codemirror.net/6/docs/ref/#autocomplete.autocompletion^config.override)\n for providing language-specific completion sources.\n - [`\"wordChars\"`](https://codemirror.net/6/docs/ref/#state.EditorState.charCategorizer) for adding\n characters that should be considered part of words in this\n language.\n - [`\"closeBrackets\"`](https://codemirror.net/6/docs/ref/#autocomplete.CloseBracketConfig) controls\n bracket closing behavior.\n */\n languageDataAt(name, pos, side = -1) {\n let values = [];\n for (let provider of this.facet(languageData)) {\n for (let result of provider(this, pos, side)) {\n if (Object.prototype.hasOwnProperty.call(result, name))\n values.push(result[name]);\n }\n }\n return values;\n }\n /**\n Return a function that can categorize strings (expected to\n represent a single [grapheme cluster](https://codemirror.net/6/docs/ref/#state.findClusterBreak))\n into one of:\n \n - Word (contains an alphanumeric character or a character\n explicitly listed in the local language's `\"wordChars\"`\n language data, which should be a string)\n - Space (contains only whitespace)\n - Other (anything else)\n */\n charCategorizer(at) {\n return makeCategorizer(this.languageDataAt(\"wordChars\", at).join(\"\"));\n }\n /**\n Find the word at the given position, meaning the range\n containing all [word](https://codemirror.net/6/docs/ref/#state.CharCategory.Word) characters\n around it. If no word characters are adjacent to the position,\n this returns null.\n */\n wordAt(pos) {\n let { text, from, length } = this.doc.lineAt(pos);\n let cat = this.charCategorizer(pos);\n let start = pos - from, end = pos - from;\n while (start > 0) {\n let prev = findClusterBreak(text, start, false);\n if (cat(text.slice(prev, start)) != CharCategory.Word)\n break;\n start = prev;\n }\n while (end < length) {\n let next = findClusterBreak(text, end);\n if (cat(text.slice(end, next)) != CharCategory.Word)\n break;\n end = next;\n }\n return start == end ? null : EditorSelection.range(start + from, end + from);\n }\n}\n/**\nA facet that, when enabled, causes the editor to allow multiple\nranges to be selected. Be careful though, because by default the\neditor relies on the native DOM selection, which cannot handle\nmultiple selections. An extension like\n[`drawSelection`](https://codemirror.net/6/docs/ref/#view.drawSelection) can be used to make\nsecondary selections visible to the user.\n*/\nEditorState.allowMultipleSelections = allowMultipleSelections;\n/**\nConfigures the tab size to use in this state. The first\n(highest-precedence) value of the facet is used. If no value is\ngiven, this defaults to 4.\n*/\nEditorState.tabSize = /*@__PURE__*/Facet.define({\n combine: values => values.length ? values[0] : 4\n});\n/**\nThe line separator to use. By default, any of `\"\\n\"`, `\"\\r\\n\"`\nand `\"\\r\"` is treated as a separator when splitting lines, and\nlines are joined with `\"\\n\"`.\n\nWhen you configure a value here, only that precise separator\nwill be used, allowing you to round-trip documents through the\neditor without normalizing line separators.\n*/\nEditorState.lineSeparator = lineSeparator;\n/**\nThis facet controls the value of the\n[`readOnly`](https://codemirror.net/6/docs/ref/#state.EditorState.readOnly) getter, which is\nconsulted by commands and extensions that implement editing\nfunctionality to determine whether they should apply. It\ndefaults to false, but when its highest-precedence value is\n`true`, such functionality disables itself.\n\nNot to be confused with\n[`EditorView.editable`](https://codemirror.net/6/docs/ref/#view.EditorView^editable), which\ncontrols whether the editor's DOM is set to be editable (and\nthus focusable).\n*/\nEditorState.readOnly = readOnly;\n/**\nRegisters translation phrases. The\n[`phrase`](https://codemirror.net/6/docs/ref/#state.EditorState.phrase) method will look through\nall objects registered with this facet to find translations for\nits argument.\n*/\nEditorState.phrases = /*@__PURE__*/Facet.define({\n compare(a, b) {\n let kA = Object.keys(a), kB = Object.keys(b);\n return kA.length == kB.length && kA.every(k => a[k] == b[k]);\n }\n});\n/**\nA facet used to register [language\ndata](https://codemirror.net/6/docs/ref/#state.EditorState.languageDataAt) providers.\n*/\nEditorState.languageData = languageData;\n/**\nFacet used to register change filters, which are called for each\ntransaction (unless explicitly\n[disabled](https://codemirror.net/6/docs/ref/#state.TransactionSpec.filter)), and can suppress\npart of the transaction's changes.\n\nSuch a function can return `true` to indicate that it doesn't\nwant to do anything, `false` to completely stop the changes in\nthe transaction, or a set of ranges in which changes should be\nsuppressed. Such ranges are represented as an array of numbers,\nwith each pair of two numbers indicating the start and end of a\nrange. So for example `[10, 20, 100, 110]` suppresses changes\nbetween 10 and 20, and between 100 and 110.\n*/\nEditorState.changeFilter = changeFilter;\n/**\nFacet used to register a hook that gets a chance to update or\nreplace transaction specs before they are applied. This will\nonly be applied for transactions that don't have\n[`filter`](https://codemirror.net/6/docs/ref/#state.TransactionSpec.filter) set to `false`. You\ncan either return a single transaction spec (possibly the input\ntransaction), or an array of specs (which will be combined in\nthe same way as the arguments to\n[`EditorState.update`](https://codemirror.net/6/docs/ref/#state.EditorState.update)).\n\nWhen possible, it is recommended to avoid accessing\n[`Transaction.state`](https://codemirror.net/6/docs/ref/#state.Transaction.state) in a filter,\nsince it will force creation of a state that will then be\ndiscarded again, if the transaction is actually filtered.\n\n(This functionality should be used with care. Indiscriminately\nmodifying transaction is likely to break something or degrade\nthe user experience.)\n*/\nEditorState.transactionFilter = transactionFilter;\n/**\nThis is a more limited form of\n[`transactionFilter`](https://codemirror.net/6/docs/ref/#state.EditorState^transactionFilter),\nwhich can only add\n[annotations](https://codemirror.net/6/docs/ref/#state.TransactionSpec.annotations) and\n[effects](https://codemirror.net/6/docs/ref/#state.TransactionSpec.effects). _But_, this type\nof filter runs even if the transaction has disabled regular\n[filtering](https://codemirror.net/6/docs/ref/#state.TransactionSpec.filter), making it suitable\nfor effects that don't need to touch the changes or selection,\nbut do want to process every transaction.\n\nExtenders run _after_ filters, when both are present.\n*/\nEditorState.transactionExtender = transactionExtender;\nCompartment.reconfigure = /*@__PURE__*/StateEffect.define();\n\n/**\nUtility function for combining behaviors to fill in a config\nobject from an array of provided configs. `defaults` should hold\ndefault values for all optional fields in `Config`.\n\nThe function will, by default, error\nwhen a field gets two values that aren't `===`-equal, but you can\nprovide combine functions per field to do something else.\n*/\nfunction combineConfig(configs, defaults, // Should hold only the optional properties of Config, but I haven't managed to express that\ncombine = {}) {\n let result = {};\n for (let config of configs)\n for (let key of Object.keys(config)) {\n let value = config[key], current = result[key];\n if (current === undefined)\n result[key] = value;\n else if (current === value || value === undefined) ; // No conflict\n else if (Object.hasOwnProperty.call(combine, key))\n result[key] = combine[key](current, value);\n else\n throw new Error(\"Config merge conflict for field \" + key);\n }\n for (let key in defaults)\n if (result[key] === undefined)\n result[key] = defaults[key];\n return result;\n}\n\n/**\nEach range is associated with a value, which must inherit from\nthis class.\n*/\nclass RangeValue {\n /**\n Compare this value with another value. Used when comparing\n rangesets. The default implementation compares by identity.\n Unless you are only creating a fixed number of unique instances\n of your value type, it is a good idea to implement this\n properly.\n */\n eq(other) { return this == other; }\n /**\n Create a [range](https://codemirror.net/6/docs/ref/#state.Range) with this value.\n */\n range(from, to = from) { return Range.create(from, to, this); }\n}\nRangeValue.prototype.startSide = RangeValue.prototype.endSide = 0;\nRangeValue.prototype.point = false;\nRangeValue.prototype.mapMode = MapMode.TrackDel;\n/**\nA range associates a value with a range of positions.\n*/\nclass Range {\n constructor(\n /**\n The range's start position.\n */\n from, \n /**\n Its end position.\n */\n to, \n /**\n The value associated with this range.\n */\n value) {\n this.from = from;\n this.to = to;\n this.value = value;\n }\n /**\n @internal\n */\n static create(from, to, value) {\n return new Range(from, to, value);\n }\n}\nfunction cmpRange(a, b) {\n return a.from - b.from || a.value.startSide - b.value.startSide;\n}\nclass Chunk {\n constructor(from, to, value, \n // Chunks are marked with the largest point that occurs\n // in them (or -1 for no points), so that scans that are\n // only interested in points (such as the\n // heightmap-related logic) can skip range-only chunks.\n maxPoint) {\n this.from = from;\n this.to = to;\n this.value = value;\n this.maxPoint = maxPoint;\n }\n get length() { return this.to[this.to.length - 1]; }\n // Find the index of the given position and side. Use the ranges'\n // `from` pos when `end == false`, `to` when `end == true`.\n findIndex(pos, side, end, startAt = 0) {\n let arr = end ? this.to : this.from;\n for (let lo = startAt, hi = arr.length;;) {\n if (lo == hi)\n return lo;\n let mid = (lo + hi) >> 1;\n let diff = arr[mid] - pos || (end ? this.value[mid].endSide : this.value[mid].startSide) - side;\n if (mid == lo)\n return diff >= 0 ? lo : hi;\n if (diff >= 0)\n hi = mid;\n else\n lo = mid + 1;\n }\n }\n between(offset, from, to, f) {\n for (let i = this.findIndex(from, -1000000000 /* C.Far */, true), e = this.findIndex(to, 1000000000 /* C.Far */, false, i); i < e; i++)\n if (f(this.from[i] + offset, this.to[i] + offset, this.value[i]) === false)\n return false;\n }\n map(offset, changes) {\n let value = [], from = [], to = [], newPos = -1, maxPoint = -1;\n for (let i = 0; i < this.value.length; i++) {\n let val = this.value[i], curFrom = this.from[i] + offset, curTo = this.to[i] + offset, newFrom, newTo;\n if (curFrom == curTo) {\n let mapped = changes.mapPos(curFrom, val.startSide, val.mapMode);\n if (mapped == null)\n continue;\n newFrom = newTo = mapped;\n if (val.startSide != val.endSide) {\n newTo = changes.mapPos(curFrom, val.endSide);\n if (newTo < newFrom)\n continue;\n }\n }\n else {\n newFrom = changes.mapPos(curFrom, val.startSide);\n newTo = changes.mapPos(curTo, val.endSide);\n if (newFrom > newTo || newFrom == newTo && val.startSide > 0 && val.endSide <= 0)\n continue;\n }\n if ((newTo - newFrom || val.endSide - val.startSide) < 0)\n continue;\n if (newPos < 0)\n newPos = newFrom;\n if (val.point)\n maxPoint = Math.max(maxPoint, newTo - newFrom);\n value.push(val);\n from.push(newFrom - newPos);\n to.push(newTo - newPos);\n }\n return { mapped: value.length ? new Chunk(from, to, value, maxPoint) : null, pos: newPos };\n }\n}\n/**\nA range set stores a collection of [ranges](https://codemirror.net/6/docs/ref/#state.Range) in a\nway that makes them efficient to [map](https://codemirror.net/6/docs/ref/#state.RangeSet.map) and\n[update](https://codemirror.net/6/docs/ref/#state.RangeSet.update). This is an immutable data\nstructure.\n*/\nclass RangeSet {\n constructor(\n /**\n @internal\n */\n chunkPos, \n /**\n @internal\n */\n chunk, \n /**\n @internal\n */\n nextLayer, \n /**\n @internal\n */\n maxPoint) {\n this.chunkPos = chunkPos;\n this.chunk = chunk;\n this.nextLayer = nextLayer;\n this.maxPoint = maxPoint;\n }\n /**\n @internal\n */\n static create(chunkPos, chunk, nextLayer, maxPoint) {\n return new RangeSet(chunkPos, chunk, nextLayer, maxPoint);\n }\n /**\n @internal\n */\n get length() {\n let last = this.chunk.length - 1;\n return last < 0 ? 0 : Math.max(this.chunkEnd(last), this.nextLayer.length);\n }\n /**\n The number of ranges in the set.\n */\n get size() {\n if (this.isEmpty)\n return 0;\n let size = this.nextLayer.size;\n for (let chunk of this.chunk)\n size += chunk.value.length;\n return size;\n }\n /**\n @internal\n */\n chunkEnd(index) {\n return this.chunkPos[index] + this.chunk[index].length;\n }\n /**\n Update the range set, optionally adding new ranges or filtering\n out existing ones.\n \n (Note: The type parameter is just there as a kludge to work\n around TypeScript variance issues that prevented `RangeSet`\n from being a subtype of `RangeSet` when `X` is a subtype of\n `Y`.)\n */\n update(updateSpec) {\n let { add = [], sort = false, filterFrom = 0, filterTo = this.length } = updateSpec;\n let filter = updateSpec.filter;\n if (add.length == 0 && !filter)\n return this;\n if (sort)\n add = add.slice().sort(cmpRange);\n if (this.isEmpty)\n return add.length ? RangeSet.of(add) : this;\n let cur = new LayerCursor(this, null, -1).goto(0), i = 0, spill = [];\n let builder = new RangeSetBuilder();\n while (cur.value || i < add.length) {\n if (i < add.length && (cur.from - add[i].from || cur.startSide - add[i].value.startSide) >= 0) {\n let range = add[i++];\n if (!builder.addInner(range.from, range.to, range.value))\n spill.push(range);\n }\n else if (cur.rangeIndex == 1 && cur.chunkIndex < this.chunk.length &&\n (i == add.length || this.chunkEnd(cur.chunkIndex) < add[i].from) &&\n (!filter || filterFrom > this.chunkEnd(cur.chunkIndex) || filterTo < this.chunkPos[cur.chunkIndex]) &&\n builder.addChunk(this.chunkPos[cur.chunkIndex], this.chunk[cur.chunkIndex])) {\n cur.nextChunk();\n }\n else {\n if (!filter || filterFrom > cur.to || filterTo < cur.from || filter(cur.from, cur.to, cur.value)) {\n if (!builder.addInner(cur.from, cur.to, cur.value))\n spill.push(Range.create(cur.from, cur.to, cur.value));\n }\n cur.next();\n }\n }\n return builder.finishInner(this.nextLayer.isEmpty && !spill.length ? RangeSet.empty\n : this.nextLayer.update({ add: spill, filter, filterFrom, filterTo }));\n }\n /**\n Map this range set through a set of changes, return the new set.\n */\n map(changes) {\n if (changes.empty || this.isEmpty)\n return this;\n let chunks = [], chunkPos = [], maxPoint = -1;\n for (let i = 0; i < this.chunk.length; i++) {\n let start = this.chunkPos[i], chunk = this.chunk[i];\n let touch = changes.touchesRange(start, start + chunk.length);\n if (touch === false) {\n maxPoint = Math.max(maxPoint, chunk.maxPoint);\n chunks.push(chunk);\n chunkPos.push(changes.mapPos(start));\n }\n else if (touch === true) {\n let { mapped, pos } = chunk.map(start, changes);\n if (mapped) {\n maxPoint = Math.max(maxPoint, mapped.maxPoint);\n chunks.push(mapped);\n chunkPos.push(pos);\n }\n }\n }\n let next = this.nextLayer.map(changes);\n return chunks.length == 0 ? next : new RangeSet(chunkPos, chunks, next || RangeSet.empty, maxPoint);\n }\n /**\n Iterate over the ranges that touch the region `from` to `to`,\n calling `f` for each. There is no guarantee that the ranges will\n be reported in any specific order. When the callback returns\n `false`, iteration stops.\n */\n between(from, to, f) {\n if (this.isEmpty)\n return;\n for (let i = 0; i < this.chunk.length; i++) {\n let start = this.chunkPos[i], chunk = this.chunk[i];\n if (to >= start && from <= start + chunk.length &&\n chunk.between(start, from - start, to - start, f) === false)\n return;\n }\n this.nextLayer.between(from, to, f);\n }\n /**\n Iterate over the ranges in this set, in order, including all\n ranges that end at or after `from`.\n */\n iter(from = 0) {\n return HeapCursor.from([this]).goto(from);\n }\n /**\n @internal\n */\n get isEmpty() { return this.nextLayer == this; }\n /**\n Iterate over the ranges in a collection of sets, in order,\n starting from `from`.\n */\n static iter(sets, from = 0) {\n return HeapCursor.from(sets).goto(from);\n }\n /**\n Iterate over two groups of sets, calling methods on `comparator`\n to notify it of possible differences.\n */\n static compare(oldSets, newSets, \n /**\n This indicates how the underlying data changed between these\n ranges, and is needed to synchronize the iteration.\n */\n textDiff, comparator, \n /**\n Can be used to ignore all non-point ranges, and points below\n the given size. When -1, all ranges are compared.\n */\n minPointSize = -1) {\n let a = oldSets.filter(set => set.maxPoint > 0 || !set.isEmpty && set.maxPoint >= minPointSize);\n let b = newSets.filter(set => set.maxPoint > 0 || !set.isEmpty && set.maxPoint >= minPointSize);\n let sharedChunks = findSharedChunks(a, b, textDiff);\n let sideA = new SpanCursor(a, sharedChunks, minPointSize);\n let sideB = new SpanCursor(b, sharedChunks, minPointSize);\n textDiff.iterGaps((fromA, fromB, length) => compare(sideA, fromA, sideB, fromB, length, comparator));\n if (textDiff.empty && textDiff.length == 0)\n compare(sideA, 0, sideB, 0, 0, comparator);\n }\n /**\n Compare the contents of two groups of range sets, returning true\n if they are equivalent in the given range.\n */\n static eq(oldSets, newSets, from = 0, to) {\n if (to == null)\n to = 1000000000 /* C.Far */ - 1;\n let a = oldSets.filter(set => !set.isEmpty && newSets.indexOf(set) < 0);\n let b = newSets.filter(set => !set.isEmpty && oldSets.indexOf(set) < 0);\n if (a.length != b.length)\n return false;\n if (!a.length)\n return true;\n let sharedChunks = findSharedChunks(a, b);\n let sideA = new SpanCursor(a, sharedChunks, 0).goto(from), sideB = new SpanCursor(b, sharedChunks, 0).goto(from);\n for (;;) {\n if (sideA.to != sideB.to ||\n !sameValues(sideA.active, sideB.active) ||\n sideA.point && (!sideB.point || !sideA.point.eq(sideB.point)))\n return false;\n if (sideA.to > to)\n return true;\n sideA.next();\n sideB.next();\n }\n }\n /**\n Iterate over a group of range sets at the same time, notifying\n the iterator about the ranges covering every given piece of\n content. Returns the open count (see\n [`SpanIterator.span`](https://codemirror.net/6/docs/ref/#state.SpanIterator.span)) at the end\n of the iteration.\n */\n static spans(sets, from, to, iterator, \n /**\n When given and greater than -1, only points of at least this\n size are taken into account.\n */\n minPointSize = -1) {\n let cursor = new SpanCursor(sets, null, minPointSize).goto(from), pos = from;\n let openRanges = cursor.openStart;\n for (;;) {\n let curTo = Math.min(cursor.to, to);\n if (cursor.point) {\n let active = cursor.activeForPoint(cursor.to);\n let openCount = cursor.pointFrom < from ? active.length + 1 : Math.min(active.length, openRanges);\n iterator.point(pos, curTo, cursor.point, active, openCount, cursor.pointRank);\n openRanges = Math.min(cursor.openEnd(curTo), active.length);\n }\n else if (curTo > pos) {\n iterator.span(pos, curTo, cursor.active, openRanges);\n openRanges = cursor.openEnd(curTo);\n }\n if (cursor.to > to)\n return openRanges + (cursor.point && cursor.to > to ? 1 : 0);\n pos = cursor.to;\n cursor.next();\n }\n }\n /**\n Create a range set for the given range or array of ranges. By\n default, this expects the ranges to be _sorted_ (by start\n position and, if two start at the same position,\n `value.startSide`). You can pass `true` as second argument to\n cause the method to sort them.\n */\n static of(ranges, sort = false) {\n let build = new RangeSetBuilder();\n for (let range of ranges instanceof Range ? [ranges] : sort ? lazySort(ranges) : ranges)\n build.add(range.from, range.to, range.value);\n return build.finish();\n }\n}\n/**\nThe empty set of ranges.\n*/\nRangeSet.empty = /*@__PURE__*/new RangeSet([], [], null, -1);\nfunction lazySort(ranges) {\n if (ranges.length > 1)\n for (let prev = ranges[0], i = 1; i < ranges.length; i++) {\n let cur = ranges[i];\n if (cmpRange(prev, cur) > 0)\n return ranges.slice().sort(cmpRange);\n prev = cur;\n }\n return ranges;\n}\nRangeSet.empty.nextLayer = RangeSet.empty;\n/**\nA range set builder is a data structure that helps build up a\n[range set](https://codemirror.net/6/docs/ref/#state.RangeSet) directly, without first allocating\nan array of [`Range`](https://codemirror.net/6/docs/ref/#state.Range) objects.\n*/\nclass RangeSetBuilder {\n finishChunk(newArrays) {\n this.chunks.push(new Chunk(this.from, this.to, this.value, this.maxPoint));\n this.chunkPos.push(this.chunkStart);\n this.chunkStart = -1;\n this.setMaxPoint = Math.max(this.setMaxPoint, this.maxPoint);\n this.maxPoint = -1;\n if (newArrays) {\n this.from = [];\n this.to = [];\n this.value = [];\n }\n }\n /**\n Create an empty builder.\n */\n constructor() {\n this.chunks = [];\n this.chunkPos = [];\n this.chunkStart = -1;\n this.last = null;\n this.lastFrom = -1000000000 /* C.Far */;\n this.lastTo = -1000000000 /* C.Far */;\n this.from = [];\n this.to = [];\n this.value = [];\n this.maxPoint = -1;\n this.setMaxPoint = -1;\n this.nextLayer = null;\n }\n /**\n Add a range. Ranges should be added in sorted (by `from` and\n `value.startSide`) order.\n */\n add(from, to, value) {\n if (!this.addInner(from, to, value))\n (this.nextLayer || (this.nextLayer = new RangeSetBuilder)).add(from, to, value);\n }\n /**\n @internal\n */\n addInner(from, to, value) {\n let diff = from - this.lastTo || value.startSide - this.last.endSide;\n if (diff <= 0 && (from - this.lastFrom || value.startSide - this.last.startSide) < 0)\n throw new Error(\"Ranges must be added sorted by `from` position and `startSide`\");\n if (diff < 0)\n return false;\n if (this.from.length == 250 /* C.ChunkSize */)\n this.finishChunk(true);\n if (this.chunkStart < 0)\n this.chunkStart = from;\n this.from.push(from - this.chunkStart);\n this.to.push(to - this.chunkStart);\n this.last = value;\n this.lastFrom = from;\n this.lastTo = to;\n this.value.push(value);\n if (value.point)\n this.maxPoint = Math.max(this.maxPoint, to - from);\n return true;\n }\n /**\n @internal\n */\n addChunk(from, chunk) {\n if ((from - this.lastTo || chunk.value[0].startSide - this.last.endSide) < 0)\n return false;\n if (this.from.length)\n this.finishChunk(true);\n this.setMaxPoint = Math.max(this.setMaxPoint, chunk.maxPoint);\n this.chunks.push(chunk);\n this.chunkPos.push(from);\n let last = chunk.value.length - 1;\n this.last = chunk.value[last];\n this.lastFrom = chunk.from[last] + from;\n this.lastTo = chunk.to[last] + from;\n return true;\n }\n /**\n Finish the range set. Returns the new set. The builder can't be\n used anymore after this has been called.\n */\n finish() { return this.finishInner(RangeSet.empty); }\n /**\n @internal\n */\n finishInner(next) {\n if (this.from.length)\n this.finishChunk(false);\n if (this.chunks.length == 0)\n return next;\n let result = RangeSet.create(this.chunkPos, this.chunks, this.nextLayer ? this.nextLayer.finishInner(next) : next, this.setMaxPoint);\n this.from = null; // Make sure further `add` calls produce errors\n return result;\n }\n}\nfunction findSharedChunks(a, b, textDiff) {\n let inA = new Map();\n for (let set of a)\n for (let i = 0; i < set.chunk.length; i++)\n if (set.chunk[i].maxPoint <= 0)\n inA.set(set.chunk[i], set.chunkPos[i]);\n let shared = new Set();\n for (let set of b)\n for (let i = 0; i < set.chunk.length; i++) {\n let known = inA.get(set.chunk[i]);\n if (known != null && (textDiff ? textDiff.mapPos(known) : known) == set.chunkPos[i] &&\n !(textDiff === null || textDiff === void 0 ? void 0 : textDiff.touchesRange(known, known + set.chunk[i].length)))\n shared.add(set.chunk[i]);\n }\n return shared;\n}\nclass LayerCursor {\n constructor(layer, skip, minPoint, rank = 0) {\n this.layer = layer;\n this.skip = skip;\n this.minPoint = minPoint;\n this.rank = rank;\n }\n get startSide() { return this.value ? this.value.startSide : 0; }\n get endSide() { return this.value ? this.value.endSide : 0; }\n goto(pos, side = -1000000000 /* C.Far */) {\n this.chunkIndex = this.rangeIndex = 0;\n this.gotoInner(pos, side, false);\n return this;\n }\n gotoInner(pos, side, forward) {\n while (this.chunkIndex < this.layer.chunk.length) {\n let next = this.layer.chunk[this.chunkIndex];\n if (!(this.skip && this.skip.has(next) ||\n this.layer.chunkEnd(this.chunkIndex) < pos ||\n next.maxPoint < this.minPoint))\n break;\n this.chunkIndex++;\n forward = false;\n }\n if (this.chunkIndex < this.layer.chunk.length) {\n let rangeIndex = this.layer.chunk[this.chunkIndex].findIndex(pos - this.layer.chunkPos[this.chunkIndex], side, true);\n if (!forward || this.rangeIndex < rangeIndex)\n this.setRangeIndex(rangeIndex);\n }\n this.next();\n }\n forward(pos, side) {\n if ((this.to - pos || this.endSide - side) < 0)\n this.gotoInner(pos, side, true);\n }\n next() {\n for (;;) {\n if (this.chunkIndex == this.layer.chunk.length) {\n this.from = this.to = 1000000000 /* C.Far */;\n this.value = null;\n break;\n }\n else {\n let chunkPos = this.layer.chunkPos[this.chunkIndex], chunk = this.layer.chunk[this.chunkIndex];\n let from = chunkPos + chunk.from[this.rangeIndex];\n this.from = from;\n this.to = chunkPos + chunk.to[this.rangeIndex];\n this.value = chunk.value[this.rangeIndex];\n this.setRangeIndex(this.rangeIndex + 1);\n if (this.minPoint < 0 || this.value.point && this.to - this.from >= this.minPoint)\n break;\n }\n }\n }\n setRangeIndex(index) {\n if (index == this.layer.chunk[this.chunkIndex].value.length) {\n this.chunkIndex++;\n if (this.skip) {\n while (this.chunkIndex < this.layer.chunk.length && this.skip.has(this.layer.chunk[this.chunkIndex]))\n this.chunkIndex++;\n }\n this.rangeIndex = 0;\n }\n else {\n this.rangeIndex = index;\n }\n }\n nextChunk() {\n this.chunkIndex++;\n this.rangeIndex = 0;\n this.next();\n }\n compare(other) {\n return this.from - other.from || this.startSide - other.startSide || this.rank - other.rank ||\n this.to - other.to || this.endSide - other.endSide;\n }\n}\nclass HeapCursor {\n constructor(heap) {\n this.heap = heap;\n }\n static from(sets, skip = null, minPoint = -1) {\n let heap = [];\n for (let i = 0; i < sets.length; i++) {\n for (let cur = sets[i]; !cur.isEmpty; cur = cur.nextLayer) {\n if (cur.maxPoint >= minPoint)\n heap.push(new LayerCursor(cur, skip, minPoint, i));\n }\n }\n return heap.length == 1 ? heap[0] : new HeapCursor(heap);\n }\n get startSide() { return this.value ? this.value.startSide : 0; }\n goto(pos, side = -1000000000 /* C.Far */) {\n for (let cur of this.heap)\n cur.goto(pos, side);\n for (let i = this.heap.length >> 1; i >= 0; i--)\n heapBubble(this.heap, i);\n this.next();\n return this;\n }\n forward(pos, side) {\n for (let cur of this.heap)\n cur.forward(pos, side);\n for (let i = this.heap.length >> 1; i >= 0; i--)\n heapBubble(this.heap, i);\n if ((this.to - pos || this.value.endSide - side) < 0)\n this.next();\n }\n next() {\n if (this.heap.length == 0) {\n this.from = this.to = 1000000000 /* C.Far */;\n this.value = null;\n this.rank = -1;\n }\n else {\n let top = this.heap[0];\n this.from = top.from;\n this.to = top.to;\n this.value = top.value;\n this.rank = top.rank;\n if (top.value)\n top.next();\n heapBubble(this.heap, 0);\n }\n }\n}\nfunction heapBubble(heap, index) {\n for (let cur = heap[index];;) {\n let childIndex = (index << 1) + 1;\n if (childIndex >= heap.length)\n break;\n let child = heap[childIndex];\n if (childIndex + 1 < heap.length && child.compare(heap[childIndex + 1]) >= 0) {\n child = heap[childIndex + 1];\n childIndex++;\n }\n if (cur.compare(child) < 0)\n break;\n heap[childIndex] = cur;\n heap[index] = child;\n index = childIndex;\n }\n}\nclass SpanCursor {\n constructor(sets, skip, minPoint) {\n this.minPoint = minPoint;\n this.active = [];\n this.activeTo = [];\n this.activeRank = [];\n this.minActive = -1;\n // A currently active point range, if any\n this.point = null;\n this.pointFrom = 0;\n this.pointRank = 0;\n this.to = -1000000000 /* C.Far */;\n this.endSide = 0;\n // The amount of open active ranges at the start of the iterator.\n // Not including points.\n this.openStart = -1;\n this.cursor = HeapCursor.from(sets, skip, minPoint);\n }\n goto(pos, side = -1000000000 /* C.Far */) {\n this.cursor.goto(pos, side);\n this.active.length = this.activeTo.length = this.activeRank.length = 0;\n this.minActive = -1;\n this.to = pos;\n this.endSide = side;\n this.openStart = -1;\n this.next();\n return this;\n }\n forward(pos, side) {\n while (this.minActive > -1 && (this.activeTo[this.minActive] - pos || this.active[this.minActive].endSide - side) < 0)\n this.removeActive(this.minActive);\n this.cursor.forward(pos, side);\n }\n removeActive(index) {\n remove(this.active, index);\n remove(this.activeTo, index);\n remove(this.activeRank, index);\n this.minActive = findMinIndex(this.active, this.activeTo);\n }\n addActive(trackOpen) {\n let i = 0, { value, to, rank } = this.cursor;\n while (i < this.activeRank.length && this.activeRank[i] <= rank)\n i++;\n insert(this.active, i, value);\n insert(this.activeTo, i, to);\n insert(this.activeRank, i, rank);\n if (trackOpen)\n insert(trackOpen, i, this.cursor.from);\n this.minActive = findMinIndex(this.active, this.activeTo);\n }\n // After calling this, if `this.point` != null, the next range is a\n // point. Otherwise, it's a regular range, covered by `this.active`.\n next() {\n let from = this.to, wasPoint = this.point;\n this.point = null;\n let trackOpen = this.openStart < 0 ? [] : null;\n for (;;) {\n let a = this.minActive;\n if (a > -1 && (this.activeTo[a] - this.cursor.from || this.active[a].endSide - this.cursor.startSide) < 0) {\n if (this.activeTo[a] > from) {\n this.to = this.activeTo[a];\n this.endSide = this.active[a].endSide;\n break;\n }\n this.removeActive(a);\n if (trackOpen)\n remove(trackOpen, a);\n }\n else if (!this.cursor.value) {\n this.to = this.endSide = 1000000000 /* C.Far */;\n break;\n }\n else if (this.cursor.from > from) {\n this.to = this.cursor.from;\n this.endSide = this.cursor.startSide;\n break;\n }\n else {\n let nextVal = this.cursor.value;\n if (!nextVal.point) { // Opening a range\n this.addActive(trackOpen);\n this.cursor.next();\n }\n else if (wasPoint && this.cursor.to == this.to && this.cursor.from < this.cursor.to) {\n // Ignore any non-empty points that end precisely at the end of the prev point\n this.cursor.next();\n }\n else { // New point\n this.point = nextVal;\n this.pointFrom = this.cursor.from;\n this.pointRank = this.cursor.rank;\n this.to = this.cursor.to;\n this.endSide = nextVal.endSide;\n this.cursor.next();\n this.forward(this.to, this.endSide);\n break;\n }\n }\n }\n if (trackOpen) {\n this.openStart = 0;\n for (let i = trackOpen.length - 1; i >= 0 && trackOpen[i] < from; i--)\n this.openStart++;\n }\n }\n activeForPoint(to) {\n if (!this.active.length)\n return this.active;\n let active = [];\n for (let i = this.active.length - 1; i >= 0; i--) {\n if (this.activeRank[i] < this.pointRank)\n break;\n if (this.activeTo[i] > to || this.activeTo[i] == to && this.active[i].endSide >= this.point.endSide)\n active.push(this.active[i]);\n }\n return active.reverse();\n }\n openEnd(to) {\n let open = 0;\n for (let i = this.activeTo.length - 1; i >= 0 && this.activeTo[i] > to; i--)\n open++;\n return open;\n }\n}\nfunction compare(a, startA, b, startB, length, comparator) {\n a.goto(startA);\n b.goto(startB);\n let endB = startB + length;\n let pos = startB, dPos = startB - startA;\n for (;;) {\n let diff = (a.to + dPos) - b.to || a.endSide - b.endSide;\n let end = diff < 0 ? a.to + dPos : b.to, clipEnd = Math.min(end, endB);\n if (a.point || b.point) {\n if (!(a.point && b.point && (a.point == b.point || a.point.eq(b.point)) &&\n sameValues(a.activeForPoint(a.to), b.activeForPoint(b.to))))\n comparator.comparePoint(pos, clipEnd, a.point, b.point);\n }\n else {\n if (clipEnd > pos && !sameValues(a.active, b.active))\n comparator.compareRange(pos, clipEnd, a.active, b.active);\n }\n if (end > endB)\n break;\n pos = end;\n if (diff <= 0)\n a.next();\n if (diff >= 0)\n b.next();\n }\n}\nfunction sameValues(a, b) {\n if (a.length != b.length)\n return false;\n for (let i = 0; i < a.length; i++)\n if (a[i] != b[i] && !a[i].eq(b[i]))\n return false;\n return true;\n}\nfunction remove(array, index) {\n for (let i = index, e = array.length - 1; i < e; i++)\n array[i] = array[i + 1];\n array.pop();\n}\nfunction insert(array, index, value) {\n for (let i = array.length - 1; i >= index; i--)\n array[i + 1] = array[i];\n array[index] = value;\n}\nfunction findMinIndex(value, array) {\n let found = -1, foundPos = 1000000000 /* C.Far */;\n for (let i = 0; i < array.length; i++)\n if ((array[i] - foundPos || value[i].endSide - value[found].endSide) < 0) {\n found = i;\n foundPos = array[i];\n }\n return found;\n}\n\n/**\nCount the column position at the given offset into the string,\ntaking extending characters and tab size into account.\n*/\nfunction countColumn(string, tabSize, to = string.length) {\n let n = 0;\n for (let i = 0; i < to;) {\n if (string.charCodeAt(i) == 9) {\n n += tabSize - (n % tabSize);\n i++;\n }\n else {\n n++;\n i = findClusterBreak(string, i);\n }\n }\n return n;\n}\n/**\nFind the offset that corresponds to the given column position in a\nstring, taking extending characters and tab size into account. By\ndefault, the string length is returned when it is too short to\nreach the column. Pass `strict` true to make it return -1 in that\nsituation.\n*/\nfunction findColumn(string, col, tabSize, strict) {\n for (let i = 0, n = 0;;) {\n if (n >= col)\n return i;\n if (i == string.length)\n break;\n n += string.charCodeAt(i) == 9 ? tabSize - (n % tabSize) : 1;\n i = findClusterBreak(string, i);\n }\n return strict === true ? -1 : string.length;\n}\n\nexport { Annotation, AnnotationType, ChangeDesc, ChangeSet, CharCategory, Compartment, EditorSelection, EditorState, Facet, Line, MapMode, Prec, Range, RangeSet, RangeSetBuilder, RangeValue, SelectionRange, StateEffect, StateEffectType, StateField, Text, Transaction, codePointAt, codePointSize, combineConfig, countColumn, findClusterBreak, findColumn, fromCodePoint };\n","export var base = {\n 8: \"Backspace\",\n 9: \"Tab\",\n 10: \"Enter\",\n 12: \"NumLock\",\n 13: \"Enter\",\n 16: \"Shift\",\n 17: \"Control\",\n 18: \"Alt\",\n 20: \"CapsLock\",\n 27: \"Escape\",\n 32: \" \",\n 33: \"PageUp\",\n 34: \"PageDown\",\n 35: \"End\",\n 36: \"Home\",\n 37: \"ArrowLeft\",\n 38: \"ArrowUp\",\n 39: \"ArrowRight\",\n 40: \"ArrowDown\",\n 44: \"PrintScreen\",\n 45: \"Insert\",\n 46: \"Delete\",\n 59: \";\",\n 61: \"=\",\n 91: \"Meta\",\n 92: \"Meta\",\n 106: \"*\",\n 107: \"+\",\n 108: \",\",\n 109: \"-\",\n 110: \".\",\n 111: \"/\",\n 144: \"NumLock\",\n 145: \"ScrollLock\",\n 160: \"Shift\",\n 161: \"Shift\",\n 162: \"Control\",\n 163: \"Control\",\n 164: \"Alt\",\n 165: \"Alt\",\n 173: \"-\",\n 186: \";\",\n 187: \"=\",\n 188: \",\",\n 189: \"-\",\n 190: \".\",\n 191: \"/\",\n 192: \"`\",\n 219: \"[\",\n 220: \"\\\\\",\n 221: \"]\",\n 222: \"'\"\n}\n\nexport var shift = {\n 48: \")\",\n 49: \"!\",\n 50: \"@\",\n 51: \"#\",\n 52: \"$\",\n 53: \"%\",\n 54: \"^\",\n 55: \"&\",\n 56: \"*\",\n 57: \"(\",\n 59: \":\",\n 61: \"+\",\n 173: \"_\",\n 186: \":\",\n 187: \"+\",\n 188: \"<\",\n 189: \"_\",\n 190: \">\",\n 191: \"?\",\n 192: \"~\",\n 219: \"{\",\n 220: \"|\",\n 221: \"}\",\n 222: \"\\\"\"\n}\n\nvar mac = typeof navigator != \"undefined\" && /Mac/.test(navigator.platform)\nvar ie = typeof navigator != \"undefined\" && /MSIE \\d|Trident\\/(?:[7-9]|\\d{2,})\\..*rv:(\\d+)/.exec(navigator.userAgent)\n\n// Fill in the digit keys\nfor (var i = 0; i < 10; i++) base[48 + i] = base[96 + i] = String(i)\n\n// The function keys\nfor (var i = 1; i <= 24; i++) base[i + 111] = \"F\" + i\n\n// And the alphabetic keys\nfor (var i = 65; i <= 90; i++) {\n base[i] = String.fromCharCode(i + 32)\n shift[i] = String.fromCharCode(i)\n}\n\n// For each code that doesn't have a shift-equivalent, copy the base name\nfor (var code in base) if (!shift.hasOwnProperty(code)) shift[code] = base[code]\n\nexport function keyName(event) {\n // On macOS, keys held with Shift and Cmd don't reflect the effect of Shift in `.key`.\n // On IE, shift effect is never included in `.key`.\n var ignoreKey = mac && event.metaKey && event.shiftKey && !event.ctrlKey && !event.altKey ||\n ie && event.shiftKey && event.key && event.key.length == 1 ||\n event.key == \"Unidentified\"\n var name = (!ignoreKey && event.key) ||\n (event.shiftKey ? shift : base)[event.keyCode] ||\n event.key || \"Unidentified\"\n // Edge sometimes produces wrong names (Issue #3)\n if (name == \"Esc\") name = \"Escape\"\n if (name == \"Del\") name = \"Delete\"\n // https://developer.microsoft.com/en-us/microsoft-edge/platform/issues/8860571/\n if (name == \"Left\") name = \"ArrowLeft\"\n if (name == \"Up\") name = \"ArrowUp\"\n if (name == \"Right\") name = \"ArrowRight\"\n if (name == \"Down\") name = \"ArrowDown\"\n return name\n}\n","import { Text, RangeSet, MapMode, RangeValue, Facet, StateEffect, ChangeSet, EditorSelection, findClusterBreak, findColumn, CharCategory, Annotation, EditorState, Transaction, Prec, codePointAt, codePointSize, combineConfig, StateField, RangeSetBuilder, countColumn } from '@codemirror/state';\nimport { StyleModule } from 'style-mod';\nimport { keyName, base, shift } from 'w3c-keyname';\n\nfunction getSelection(root) {\n let target;\n // Browsers differ on whether shadow roots have a getSelection\n // method. If it exists, use that, otherwise, call it on the\n // document.\n if (root.nodeType == 11) { // Shadow root\n target = root.getSelection ? root : root.ownerDocument;\n }\n else {\n target = root;\n }\n return target.getSelection();\n}\nfunction contains(dom, node) {\n return node ? dom == node || dom.contains(node.nodeType != 1 ? node.parentNode : node) : false;\n}\nfunction deepActiveElement(doc) {\n let elt = doc.activeElement;\n while (elt && elt.shadowRoot)\n elt = elt.shadowRoot.activeElement;\n return elt;\n}\nfunction hasSelection(dom, selection) {\n if (!selection.anchorNode)\n return false;\n try {\n // Firefox will raise 'permission denied' errors when accessing\n // properties of `sel.anchorNode` when it's in a generated CSS\n // element.\n return contains(dom, selection.anchorNode);\n }\n catch (_) {\n return false;\n }\n}\nfunction clientRectsFor(dom) {\n if (dom.nodeType == 3)\n return textRange(dom, 0, dom.nodeValue.length).getClientRects();\n else if (dom.nodeType == 1)\n return dom.getClientRects();\n else\n return [];\n}\n// Scans forward and backward through DOM positions equivalent to the\n// given one to see if the two are in the same place (i.e. after a\n// text node vs at the end of that text node)\nfunction isEquivalentPosition(node, off, targetNode, targetOff) {\n return targetNode ? (scanFor(node, off, targetNode, targetOff, -1) ||\n scanFor(node, off, targetNode, targetOff, 1)) : false;\n}\nfunction domIndex(node) {\n for (var index = 0;; index++) {\n node = node.previousSibling;\n if (!node)\n return index;\n }\n}\nfunction scanFor(node, off, targetNode, targetOff, dir) {\n for (;;) {\n if (node == targetNode && off == targetOff)\n return true;\n if (off == (dir < 0 ? 0 : maxOffset(node))) {\n if (node.nodeName == \"DIV\")\n return false;\n let parent = node.parentNode;\n if (!parent || parent.nodeType != 1)\n return false;\n off = domIndex(node) + (dir < 0 ? 0 : 1);\n node = parent;\n }\n else if (node.nodeType == 1) {\n node = node.childNodes[off + (dir < 0 ? -1 : 0)];\n if (node.nodeType == 1 && node.contentEditable == \"false\")\n return false;\n off = dir < 0 ? maxOffset(node) : 0;\n }\n else {\n return false;\n }\n }\n}\nfunction maxOffset(node) {\n return node.nodeType == 3 ? node.nodeValue.length : node.childNodes.length;\n}\nfunction flattenRect(rect, left) {\n let x = left ? rect.left : rect.right;\n return { left: x, right: x, top: rect.top, bottom: rect.bottom };\n}\nfunction windowRect(win) {\n return { left: 0, right: win.innerWidth,\n top: 0, bottom: win.innerHeight };\n}\nfunction scrollRectIntoView(dom, rect, side, x, y, xMargin, yMargin, ltr) {\n let doc = dom.ownerDocument, win = doc.defaultView || window;\n for (let cur = dom, stop = false; cur && !stop;) {\n if (cur.nodeType == 1) { // Element\n let bounding, top = cur == doc.body;\n let scaleX = 1, scaleY = 1;\n if (top) {\n bounding = windowRect(win);\n }\n else {\n if (/^(fixed|sticky)$/.test(getComputedStyle(cur).position))\n stop = true;\n if (cur.scrollHeight <= cur.clientHeight && cur.scrollWidth <= cur.clientWidth) {\n cur = cur.assignedSlot || cur.parentNode;\n continue;\n }\n let rect = cur.getBoundingClientRect();\n scaleX = rect.width / cur.offsetWidth;\n scaleY = rect.height / cur.offsetHeight;\n // Make sure scrollbar width isn't included in the rectangle\n bounding = { left: rect.left, right: rect.left + cur.clientWidth * scaleX,\n top: rect.top, bottom: rect.top + cur.clientHeight * scaleY };\n }\n let moveX = 0, moveY = 0;\n if (y == \"nearest\") {\n if (rect.top < bounding.top) {\n moveY = -(bounding.top - rect.top + yMargin);\n if (side > 0 && rect.bottom > bounding.bottom + moveY)\n moveY = rect.bottom - bounding.bottom + moveY + yMargin;\n }\n else if (rect.bottom > bounding.bottom) {\n moveY = rect.bottom - bounding.bottom + yMargin;\n if (side < 0 && (rect.top - moveY) < bounding.top)\n moveY = -(bounding.top + moveY - rect.top + yMargin);\n }\n }\n else {\n let rectHeight = rect.bottom - rect.top, boundingHeight = bounding.bottom - bounding.top;\n let targetTop = y == \"center\" && rectHeight <= boundingHeight ? rect.top + rectHeight / 2 - boundingHeight / 2 :\n y == \"start\" || y == \"center\" && side < 0 ? rect.top - yMargin :\n rect.bottom - boundingHeight + yMargin;\n moveY = targetTop - bounding.top;\n }\n if (x == \"nearest\") {\n if (rect.left < bounding.left) {\n moveX = -(bounding.left - rect.left + xMargin);\n if (side > 0 && rect.right > bounding.right + moveX)\n moveX = rect.right - bounding.right + moveX + xMargin;\n }\n else if (rect.right > bounding.right) {\n moveX = rect.right - bounding.right + xMargin;\n if (side < 0 && rect.left < bounding.left + moveX)\n moveX = -(bounding.left + moveX - rect.left + xMargin);\n }\n }\n else {\n let targetLeft = x == \"center\" ? rect.left + (rect.right - rect.left) / 2 - (bounding.right - bounding.left) / 2 :\n (x == \"start\") == ltr ? rect.left - xMargin :\n rect.right - (bounding.right - bounding.left) + xMargin;\n moveX = targetLeft - bounding.left;\n }\n if (moveX || moveY) {\n if (top) {\n win.scrollBy(moveX, moveY);\n }\n else {\n let movedX = 0, movedY = 0;\n if (moveY) {\n let start = cur.scrollTop;\n cur.scrollTop += moveY / scaleY;\n movedY = (cur.scrollTop - start) * scaleY;\n }\n if (moveX) {\n let start = cur.scrollLeft;\n cur.scrollLeft += moveX / scaleX;\n movedX = (cur.scrollLeft - start) * scaleX;\n }\n rect = { left: rect.left - movedX, top: rect.top - movedY,\n right: rect.right - movedX, bottom: rect.bottom - movedY };\n if (movedX && Math.abs(movedX - moveX) < 1)\n x = \"nearest\";\n if (movedY && Math.abs(movedY - moveY) < 1)\n y = \"nearest\";\n }\n }\n if (top)\n break;\n cur = cur.assignedSlot || cur.parentNode;\n }\n else if (cur.nodeType == 11) { // A shadow root\n cur = cur.host;\n }\n else {\n break;\n }\n }\n}\nfunction scrollableParent(dom) {\n let doc = dom.ownerDocument;\n for (let cur = dom.parentNode; cur;) {\n if (cur == doc.body) {\n break;\n }\n else if (cur.nodeType == 1) {\n if (cur.scrollHeight > cur.clientHeight || cur.scrollWidth > cur.clientWidth)\n return cur;\n cur = cur.assignedSlot || cur.parentNode;\n }\n else if (cur.nodeType == 11) {\n cur = cur.host;\n }\n else {\n break;\n }\n }\n return null;\n}\nclass DOMSelectionState {\n constructor() {\n this.anchorNode = null;\n this.anchorOffset = 0;\n this.focusNode = null;\n this.focusOffset = 0;\n }\n eq(domSel) {\n return this.anchorNode == domSel.anchorNode && this.anchorOffset == domSel.anchorOffset &&\n this.focusNode == domSel.focusNode && this.focusOffset == domSel.focusOffset;\n }\n setRange(range) {\n let { anchorNode, focusNode } = range;\n // Clip offsets to node size to avoid crashes when Safari reports bogus offsets (#1152)\n this.set(anchorNode, Math.min(range.anchorOffset, anchorNode ? maxOffset(anchorNode) : 0), focusNode, Math.min(range.focusOffset, focusNode ? maxOffset(focusNode) : 0));\n }\n set(anchorNode, anchorOffset, focusNode, focusOffset) {\n this.anchorNode = anchorNode;\n this.anchorOffset = anchorOffset;\n this.focusNode = focusNode;\n this.focusOffset = focusOffset;\n }\n}\nlet preventScrollSupported = null;\n// Feature-detects support for .focus({preventScroll: true}), and uses\n// a fallback kludge when not supported.\nfunction focusPreventScroll(dom) {\n if (dom.setActive)\n return dom.setActive(); // in IE\n if (preventScrollSupported)\n return dom.focus(preventScrollSupported);\n let stack = [];\n for (let cur = dom; cur; cur = cur.parentNode) {\n stack.push(cur, cur.scrollTop, cur.scrollLeft);\n if (cur == cur.ownerDocument)\n break;\n }\n dom.focus(preventScrollSupported == null ? {\n get preventScroll() {\n preventScrollSupported = { preventScroll: true };\n return true;\n }\n } : undefined);\n if (!preventScrollSupported) {\n preventScrollSupported = false;\n for (let i = 0; i < stack.length;) {\n let elt = stack[i++], top = stack[i++], left = stack[i++];\n if (elt.scrollTop != top)\n elt.scrollTop = top;\n if (elt.scrollLeft != left)\n elt.scrollLeft = left;\n }\n }\n}\nlet scratchRange;\nfunction textRange(node, from, to = from) {\n let range = scratchRange || (scratchRange = document.createRange());\n range.setEnd(node, to);\n range.setStart(node, from);\n return range;\n}\nfunction dispatchKey(elt, name, code) {\n let options = { key: name, code: name, keyCode: code, which: code, cancelable: true };\n let down = new KeyboardEvent(\"keydown\", options);\n down.synthetic = true;\n elt.dispatchEvent(down);\n let up = new KeyboardEvent(\"keyup\", options);\n up.synthetic = true;\n elt.dispatchEvent(up);\n return down.defaultPrevented || up.defaultPrevented;\n}\nfunction getRoot(node) {\n while (node) {\n if (node && (node.nodeType == 9 || node.nodeType == 11 && node.host))\n return node;\n node = node.assignedSlot || node.parentNode;\n }\n return null;\n}\nfunction clearAttributes(node) {\n while (node.attributes.length)\n node.removeAttributeNode(node.attributes[0]);\n}\nfunction atElementStart(doc, selection) {\n let node = selection.focusNode, offset = selection.focusOffset;\n if (!node || selection.anchorNode != node || selection.anchorOffset != offset)\n return false;\n // Safari can report bogus offsets (#1152)\n offset = Math.min(offset, maxOffset(node));\n for (;;) {\n if (offset) {\n if (node.nodeType != 1)\n return false;\n let prev = node.childNodes[offset - 1];\n if (prev.contentEditable == \"false\")\n offset--;\n else {\n node = prev;\n offset = maxOffset(node);\n }\n }\n else if (node == doc) {\n return true;\n }\n else {\n offset = domIndex(node);\n node = node.parentNode;\n }\n }\n}\nfunction isScrolledToBottom(elt) {\n return elt.scrollTop > Math.max(1, elt.scrollHeight - elt.clientHeight - 4);\n}\n\nclass DOMPos {\n constructor(node, offset, precise = true) {\n this.node = node;\n this.offset = offset;\n this.precise = precise;\n }\n static before(dom, precise) { return new DOMPos(dom.parentNode, domIndex(dom), precise); }\n static after(dom, precise) { return new DOMPos(dom.parentNode, domIndex(dom) + 1, precise); }\n}\nconst noChildren = [];\nclass ContentView {\n constructor() {\n this.parent = null;\n this.dom = null;\n this.flags = 2 /* ViewFlag.NodeDirty */;\n }\n get overrideDOMText() { return null; }\n get posAtStart() {\n return this.parent ? this.parent.posBefore(this) : 0;\n }\n get posAtEnd() {\n return this.posAtStart + this.length;\n }\n posBefore(view) {\n let pos = this.posAtStart;\n for (let child of this.children) {\n if (child == view)\n return pos;\n pos += child.length + child.breakAfter;\n }\n throw new RangeError(\"Invalid child in posBefore\");\n }\n posAfter(view) {\n return this.posBefore(view) + view.length;\n }\n sync(view, track) {\n if (this.flags & 2 /* ViewFlag.NodeDirty */) {\n let parent = this.dom;\n let prev = null, next;\n for (let child of this.children) {\n if (child.flags & 7 /* ViewFlag.Dirty */) {\n if (!child.dom && (next = prev ? prev.nextSibling : parent.firstChild)) {\n let contentView = ContentView.get(next);\n if (!contentView || !contentView.parent && contentView.canReuseDOM(child))\n child.reuseDOM(next);\n }\n child.sync(view, track);\n child.flags &= ~7 /* ViewFlag.Dirty */;\n }\n next = prev ? prev.nextSibling : parent.firstChild;\n if (track && !track.written && track.node == parent && next != child.dom)\n track.written = true;\n if (child.dom.parentNode == parent) {\n while (next && next != child.dom)\n next = rm$1(next);\n }\n else {\n parent.insertBefore(child.dom, next);\n }\n prev = child.dom;\n }\n next = prev ? prev.nextSibling : parent.firstChild;\n if (next && track && track.node == parent)\n track.written = true;\n while (next)\n next = rm$1(next);\n }\n else if (this.flags & 1 /* ViewFlag.ChildDirty */) {\n for (let child of this.children)\n if (child.flags & 7 /* ViewFlag.Dirty */) {\n child.sync(view, track);\n child.flags &= ~7 /* ViewFlag.Dirty */;\n }\n }\n }\n reuseDOM(_dom) { }\n localPosFromDOM(node, offset) {\n let after;\n if (node == this.dom) {\n after = this.dom.childNodes[offset];\n }\n else {\n let bias = maxOffset(node) == 0 ? 0 : offset == 0 ? -1 : 1;\n for (;;) {\n let parent = node.parentNode;\n if (parent == this.dom)\n break;\n if (bias == 0 && parent.firstChild != parent.lastChild) {\n if (node == parent.firstChild)\n bias = -1;\n else\n bias = 1;\n }\n node = parent;\n }\n if (bias < 0)\n after = node;\n else\n after = node.nextSibling;\n }\n if (after == this.dom.firstChild)\n return 0;\n while (after && !ContentView.get(after))\n after = after.nextSibling;\n if (!after)\n return this.length;\n for (let i = 0, pos = 0;; i++) {\n let child = this.children[i];\n if (child.dom == after)\n return pos;\n pos += child.length + child.breakAfter;\n }\n }\n domBoundsAround(from, to, offset = 0) {\n let fromI = -1, fromStart = -1, toI = -1, toEnd = -1;\n for (let i = 0, pos = offset, prevEnd = offset; i < this.children.length; i++) {\n let child = this.children[i], end = pos + child.length;\n if (pos < from && end > to)\n return child.domBoundsAround(from, to, pos);\n if (end >= from && fromI == -1) {\n fromI = i;\n fromStart = pos;\n }\n if (pos > to && child.dom.parentNode == this.dom) {\n toI = i;\n toEnd = prevEnd;\n break;\n }\n prevEnd = end;\n pos = end + child.breakAfter;\n }\n return { from: fromStart, to: toEnd < 0 ? offset + this.length : toEnd,\n startDOM: (fromI ? this.children[fromI - 1].dom.nextSibling : null) || this.dom.firstChild,\n endDOM: toI < this.children.length && toI >= 0 ? this.children[toI].dom : null };\n }\n markDirty(andParent = false) {\n this.flags |= 2 /* ViewFlag.NodeDirty */;\n this.markParentsDirty(andParent);\n }\n markParentsDirty(childList) {\n for (let parent = this.parent; parent; parent = parent.parent) {\n if (childList)\n parent.flags |= 2 /* ViewFlag.NodeDirty */;\n if (parent.flags & 1 /* ViewFlag.ChildDirty */)\n return;\n parent.flags |= 1 /* ViewFlag.ChildDirty */;\n childList = false;\n }\n }\n setParent(parent) {\n if (this.parent != parent) {\n this.parent = parent;\n if (this.flags & 7 /* ViewFlag.Dirty */)\n this.markParentsDirty(true);\n }\n }\n setDOM(dom) {\n if (this.dom == dom)\n return;\n if (this.dom)\n this.dom.cmView = null;\n this.dom = dom;\n dom.cmView = this;\n }\n get rootView() {\n for (let v = this;;) {\n let parent = v.parent;\n if (!parent)\n return v;\n v = parent;\n }\n }\n replaceChildren(from, to, children = noChildren) {\n this.markDirty();\n for (let i = from; i < to; i++) {\n let child = this.children[i];\n if (child.parent == this)\n child.destroy();\n }\n this.children.splice(from, to - from, ...children);\n for (let i = 0; i < children.length; i++)\n children[i].setParent(this);\n }\n ignoreMutation(_rec) { return false; }\n ignoreEvent(_event) { return false; }\n childCursor(pos = this.length) {\n return new ChildCursor(this.children, pos, this.children.length);\n }\n childPos(pos, bias = 1) {\n return this.childCursor().findPos(pos, bias);\n }\n toString() {\n let name = this.constructor.name.replace(\"View\", \"\");\n return name + (this.children.length ? \"(\" + this.children.join() + \")\" :\n this.length ? \"[\" + (name == \"Text\" ? this.text : this.length) + \"]\" : \"\") +\n (this.breakAfter ? \"#\" : \"\");\n }\n static get(node) { return node.cmView; }\n get isEditable() { return true; }\n get isWidget() { return false; }\n get isHidden() { return false; }\n merge(from, to, source, hasStart, openStart, openEnd) {\n return false;\n }\n become(other) { return false; }\n canReuseDOM(other) {\n return other.constructor == this.constructor && !((this.flags | other.flags) & 8 /* ViewFlag.Composition */);\n }\n // When this is a zero-length view with a side, this should return a\n // number <= 0 to indicate it is before its position, or a\n // number > 0 when after its position.\n getSide() { return 0; }\n destroy() {\n this.parent = null;\n }\n}\nContentView.prototype.breakAfter = 0;\n// Remove a DOM node and return its next sibling.\nfunction rm$1(dom) {\n let next = dom.nextSibling;\n dom.parentNode.removeChild(dom);\n return next;\n}\nclass ChildCursor {\n constructor(children, pos, i) {\n this.children = children;\n this.pos = pos;\n this.i = i;\n this.off = 0;\n }\n findPos(pos, bias = 1) {\n for (;;) {\n if (pos > this.pos || pos == this.pos &&\n (bias > 0 || this.i == 0 || this.children[this.i - 1].breakAfter)) {\n this.off = pos - this.pos;\n return this;\n }\n let next = this.children[--this.i];\n this.pos -= next.length + next.breakAfter;\n }\n }\n}\nfunction replaceRange(parent, fromI, fromOff, toI, toOff, insert, breakAtStart, openStart, openEnd) {\n let { children } = parent;\n let before = children.length ? children[fromI] : null;\n let last = insert.length ? insert[insert.length - 1] : null;\n let breakAtEnd = last ? last.breakAfter : breakAtStart;\n // Change within a single child\n if (fromI == toI && before && !breakAtStart && !breakAtEnd && insert.length < 2 &&\n before.merge(fromOff, toOff, insert.length ? last : null, fromOff == 0, openStart, openEnd))\n return;\n if (toI < children.length) {\n let after = children[toI];\n // Make sure the end of the child after the update is preserved in `after`\n if (after && (toOff < after.length || after.breakAfter && (last === null || last === void 0 ? void 0 : last.breakAfter))) {\n // If we're splitting a child, separate part of it to avoid that\n // being mangled when updating the child before the update.\n if (fromI == toI) {\n after = after.split(toOff);\n toOff = 0;\n }\n // If the element after the replacement should be merged with\n // the last replacing element, update `content`\n if (!breakAtEnd && last && after.merge(0, toOff, last, true, 0, openEnd)) {\n insert[insert.length - 1] = after;\n }\n else {\n // Remove the start of the after element, if necessary, and\n // add it to `content`.\n if (toOff || after.children.length && !after.children[0].length)\n after.merge(0, toOff, null, false, 0, openEnd);\n insert.push(after);\n }\n }\n else if (after === null || after === void 0 ? void 0 : after.breakAfter) {\n // The element at `toI` is entirely covered by this range.\n // Preserve its line break, if any.\n if (last)\n last.breakAfter = 1;\n else\n breakAtStart = 1;\n }\n // Since we've handled the next element from the current elements\n // now, make sure `toI` points after that.\n toI++;\n }\n if (before) {\n before.breakAfter = breakAtStart;\n if (fromOff > 0) {\n if (!breakAtStart && insert.length && before.merge(fromOff, before.length, insert[0], false, openStart, 0)) {\n before.breakAfter = insert.shift().breakAfter;\n }\n else if (fromOff < before.length || before.children.length && before.children[before.children.length - 1].length == 0) {\n before.merge(fromOff, before.length, null, false, openStart, 0);\n }\n fromI++;\n }\n }\n // Try to merge widgets on the boundaries of the replacement\n while (fromI < toI && insert.length) {\n if (children[toI - 1].become(insert[insert.length - 1])) {\n toI--;\n insert.pop();\n openEnd = insert.length ? 0 : openStart;\n }\n else if (children[fromI].become(insert[0])) {\n fromI++;\n insert.shift();\n openStart = insert.length ? 0 : openEnd;\n }\n else {\n break;\n }\n }\n if (!insert.length && fromI && toI < children.length && !children[fromI - 1].breakAfter &&\n children[toI].merge(0, 0, children[fromI - 1], false, openStart, openEnd))\n fromI--;\n if (fromI < toI || insert.length)\n parent.replaceChildren(fromI, toI, insert);\n}\nfunction mergeChildrenInto(parent, from, to, insert, openStart, openEnd) {\n let cur = parent.childCursor();\n let { i: toI, off: toOff } = cur.findPos(to, 1);\n let { i: fromI, off: fromOff } = cur.findPos(from, -1);\n let dLen = from - to;\n for (let view of insert)\n dLen += view.length;\n parent.length += dLen;\n replaceRange(parent, fromI, fromOff, toI, toOff, insert, 0, openStart, openEnd);\n}\n\nlet nav = typeof navigator != \"undefined\" ? navigator : { userAgent: \"\", vendor: \"\", platform: \"\" };\nlet doc = typeof document != \"undefined\" ? document : { documentElement: { style: {} } };\nconst ie_edge = /*@__PURE__*//Edge\\/(\\d+)/.exec(nav.userAgent);\nconst ie_upto10 = /*@__PURE__*//MSIE \\d/.test(nav.userAgent);\nconst ie_11up = /*@__PURE__*//Trident\\/(?:[7-9]|\\d{2,})\\..*rv:(\\d+)/.exec(nav.userAgent);\nconst ie = !!(ie_upto10 || ie_11up || ie_edge);\nconst gecko = !ie && /*@__PURE__*//gecko\\/(\\d+)/i.test(nav.userAgent);\nconst chrome = !ie && /*@__PURE__*//Chrome\\/(\\d+)/.exec(nav.userAgent);\nconst webkit = \"webkitFontSmoothing\" in doc.documentElement.style;\nconst safari = !ie && /*@__PURE__*//Apple Computer/.test(nav.vendor);\nconst ios = safari && (/*@__PURE__*//Mobile\\/\\w+/.test(nav.userAgent) || nav.maxTouchPoints > 2);\nvar browser = {\n mac: ios || /*@__PURE__*//Mac/.test(nav.platform),\n windows: /*@__PURE__*//Win/.test(nav.platform),\n linux: /*@__PURE__*//Linux|X11/.test(nav.platform),\n ie,\n ie_version: ie_upto10 ? doc.documentMode || 6 : ie_11up ? +ie_11up[1] : ie_edge ? +ie_edge[1] : 0,\n gecko,\n gecko_version: gecko ? +(/*@__PURE__*//Firefox\\/(\\d+)/.exec(nav.userAgent) || [0, 0])[1] : 0,\n chrome: !!chrome,\n chrome_version: chrome ? +chrome[1] : 0,\n ios,\n android: /*@__PURE__*//Android\\b/.test(nav.userAgent),\n webkit,\n safari,\n webkit_version: webkit ? +(/*@__PURE__*//\\bAppleWebKit\\/(\\d+)/.exec(navigator.userAgent) || [0, 0])[1] : 0,\n tabSize: doc.documentElement.style.tabSize != null ? \"tab-size\" : \"-moz-tab-size\"\n};\n\nconst MaxJoinLen = 256;\nclass TextView extends ContentView {\n constructor(text) {\n super();\n this.text = text;\n }\n get length() { return this.text.length; }\n createDOM(textDOM) {\n this.setDOM(textDOM || document.createTextNode(this.text));\n }\n sync(view, track) {\n if (!this.dom)\n this.createDOM();\n if (this.dom.nodeValue != this.text) {\n if (track && track.node == this.dom)\n track.written = true;\n this.dom.nodeValue = this.text;\n }\n }\n reuseDOM(dom) {\n if (dom.nodeType == 3)\n this.createDOM(dom);\n }\n merge(from, to, source) {\n if ((this.flags & 8 /* ViewFlag.Composition */) ||\n source && (!(source instanceof TextView) ||\n this.length - (to - from) + source.length > MaxJoinLen ||\n (source.flags & 8 /* ViewFlag.Composition */)))\n return false;\n this.text = this.text.slice(0, from) + (source ? source.text : \"\") + this.text.slice(to);\n this.markDirty();\n return true;\n }\n split(from) {\n let result = new TextView(this.text.slice(from));\n this.text = this.text.slice(0, from);\n this.markDirty();\n result.flags |= this.flags & 8 /* ViewFlag.Composition */;\n return result;\n }\n localPosFromDOM(node, offset) {\n return node == this.dom ? offset : offset ? this.text.length : 0;\n }\n domAtPos(pos) { return new DOMPos(this.dom, pos); }\n domBoundsAround(_from, _to, offset) {\n return { from: offset, to: offset + this.length, startDOM: this.dom, endDOM: this.dom.nextSibling };\n }\n coordsAt(pos, side) {\n return textCoords(this.dom, pos, side);\n }\n}\nclass MarkView extends ContentView {\n constructor(mark, children = [], length = 0) {\n super();\n this.mark = mark;\n this.children = children;\n this.length = length;\n for (let ch of children)\n ch.setParent(this);\n }\n setAttrs(dom) {\n clearAttributes(dom);\n if (this.mark.class)\n dom.className = this.mark.class;\n if (this.mark.attrs)\n for (let name in this.mark.attrs)\n dom.setAttribute(name, this.mark.attrs[name]);\n return dom;\n }\n canReuseDOM(other) {\n return super.canReuseDOM(other) && !((this.flags | other.flags) & 8 /* ViewFlag.Composition */);\n }\n reuseDOM(node) {\n if (node.nodeName == this.mark.tagName.toUpperCase()) {\n this.setDOM(node);\n this.flags |= 4 /* ViewFlag.AttrsDirty */ | 2 /* ViewFlag.NodeDirty */;\n }\n }\n sync(view, track) {\n if (!this.dom)\n this.setDOM(this.setAttrs(document.createElement(this.mark.tagName)));\n else if (this.flags & 4 /* ViewFlag.AttrsDirty */)\n this.setAttrs(this.dom);\n super.sync(view, track);\n }\n merge(from, to, source, _hasStart, openStart, openEnd) {\n if (source && (!(source instanceof MarkView && source.mark.eq(this.mark)) ||\n (from && openStart <= 0) || (to < this.length && openEnd <= 0)))\n return false;\n mergeChildrenInto(this, from, to, source ? source.children : [], openStart - 1, openEnd - 1);\n this.markDirty();\n return true;\n }\n split(from) {\n let result = [], off = 0, detachFrom = -1, i = 0;\n for (let elt of this.children) {\n let end = off + elt.length;\n if (end > from)\n result.push(off < from ? elt.split(from - off) : elt);\n if (detachFrom < 0 && off >= from)\n detachFrom = i;\n off = end;\n i++;\n }\n let length = this.length - from;\n this.length = from;\n if (detachFrom > -1) {\n this.children.length = detachFrom;\n this.markDirty();\n }\n return new MarkView(this.mark, result, length);\n }\n domAtPos(pos) {\n return inlineDOMAtPos(this, pos);\n }\n coordsAt(pos, side) {\n return coordsInChildren(this, pos, side);\n }\n}\nfunction textCoords(text, pos, side) {\n let length = text.nodeValue.length;\n if (pos > length)\n pos = length;\n let from = pos, to = pos, flatten = 0;\n if (pos == 0 && side < 0 || pos == length && side >= 0) {\n if (!(browser.chrome || browser.gecko)) { // These browsers reliably return valid rectangles for empty ranges\n if (pos) {\n from--;\n flatten = 1;\n } // FIXME this is wrong in RTL text\n else if (to < length) {\n to++;\n flatten = -1;\n }\n }\n }\n else {\n if (side < 0)\n from--;\n else if (to < length)\n to++;\n }\n let rects = textRange(text, from, to).getClientRects();\n if (!rects.length)\n return null;\n let rect = rects[(flatten ? flatten < 0 : side >= 0) ? 0 : rects.length - 1];\n if (browser.safari && !flatten && rect.width == 0)\n rect = Array.prototype.find.call(rects, r => r.width) || rect;\n return flatten ? flattenRect(rect, flatten < 0) : rect || null;\n}\n// Also used for collapsed ranges that don't have a placeholder widget!\nclass WidgetView extends ContentView {\n static create(widget, length, side) {\n return new WidgetView(widget, length, side);\n }\n constructor(widget, length, side) {\n super();\n this.widget = widget;\n this.length = length;\n this.side = side;\n this.prevWidget = null;\n }\n split(from) {\n let result = WidgetView.create(this.widget, this.length - from, this.side);\n this.length -= from;\n return result;\n }\n sync(view) {\n if (!this.dom || !this.widget.updateDOM(this.dom, view)) {\n if (this.dom && this.prevWidget)\n this.prevWidget.destroy(this.dom);\n this.prevWidget = null;\n this.setDOM(this.widget.toDOM(view));\n this.dom.contentEditable = \"false\";\n }\n }\n getSide() { return this.side; }\n merge(from, to, source, hasStart, openStart, openEnd) {\n if (source && (!(source instanceof WidgetView) || !this.widget.compare(source.widget) ||\n from > 0 && openStart <= 0 || to < this.length && openEnd <= 0))\n return false;\n this.length = from + (source ? source.length : 0) + (this.length - to);\n return true;\n }\n become(other) {\n if (other instanceof WidgetView && other.side == this.side &&\n this.widget.constructor == other.widget.constructor) {\n if (!this.widget.compare(other.widget))\n this.markDirty(true);\n if (this.dom && !this.prevWidget)\n this.prevWidget = this.widget;\n this.widget = other.widget;\n this.length = other.length;\n return true;\n }\n return false;\n }\n ignoreMutation() { return true; }\n ignoreEvent(event) { return this.widget.ignoreEvent(event); }\n get overrideDOMText() {\n if (this.length == 0)\n return Text.empty;\n let top = this;\n while (top.parent)\n top = top.parent;\n let { view } = top, text = view && view.state.doc, start = this.posAtStart;\n return text ? text.slice(start, start + this.length) : Text.empty;\n }\n domAtPos(pos) {\n return (this.length ? pos == 0 : this.side > 0)\n ? DOMPos.before(this.dom)\n : DOMPos.after(this.dom, pos == this.length);\n }\n domBoundsAround() { return null; }\n coordsAt(pos, side) {\n let custom = this.widget.coordsAt(this.dom, pos, side);\n if (custom)\n return custom;\n let rects = this.dom.getClientRects(), rect = null;\n if (!rects.length)\n return null;\n let fromBack = this.side ? this.side < 0 : pos > 0;\n for (let i = fromBack ? rects.length - 1 : 0;; i += (fromBack ? -1 : 1)) {\n rect = rects[i];\n if (pos > 0 ? i == 0 : i == rects.length - 1 || rect.top < rect.bottom)\n break;\n }\n return flattenRect(rect, !fromBack);\n }\n get isEditable() { return false; }\n get isWidget() { return true; }\n get isHidden() { return this.widget.isHidden; }\n destroy() {\n super.destroy();\n if (this.dom)\n this.widget.destroy(this.dom);\n }\n}\n// These are drawn around uneditable widgets to avoid a number of\n// browser bugs that show up when the cursor is directly next to\n// uneditable inline content.\nclass WidgetBufferView extends ContentView {\n constructor(side) {\n super();\n this.side = side;\n }\n get length() { return 0; }\n merge() { return false; }\n become(other) {\n return other instanceof WidgetBufferView && other.side == this.side;\n }\n split() { return new WidgetBufferView(this.side); }\n sync() {\n if (!this.dom) {\n let dom = document.createElement(\"img\");\n dom.className = \"cm-widgetBuffer\";\n dom.setAttribute(\"aria-hidden\", \"true\");\n this.setDOM(dom);\n }\n }\n getSide() { return this.side; }\n domAtPos(pos) { return this.side > 0 ? DOMPos.before(this.dom) : DOMPos.after(this.dom); }\n localPosFromDOM() { return 0; }\n domBoundsAround() { return null; }\n coordsAt(pos) {\n return this.dom.getBoundingClientRect();\n }\n get overrideDOMText() {\n return Text.empty;\n }\n get isHidden() { return true; }\n}\nTextView.prototype.children = WidgetView.prototype.children = WidgetBufferView.prototype.children = noChildren;\nfunction inlineDOMAtPos(parent, pos) {\n let dom = parent.dom, { children } = parent, i = 0;\n for (let off = 0; i < children.length; i++) {\n let child = children[i], end = off + child.length;\n if (end == off && child.getSide() <= 0)\n continue;\n if (pos > off && pos < end && child.dom.parentNode == dom)\n return child.domAtPos(pos - off);\n if (pos <= off)\n break;\n off = end;\n }\n for (let j = i; j > 0; j--) {\n let prev = children[j - 1];\n if (prev.dom.parentNode == dom)\n return prev.domAtPos(prev.length);\n }\n for (let j = i; j < children.length; j++) {\n let next = children[j];\n if (next.dom.parentNode == dom)\n return next.domAtPos(0);\n }\n return new DOMPos(dom, 0);\n}\n// Assumes `view`, if a mark view, has precisely 1 child.\nfunction joinInlineInto(parent, view, open) {\n let last, { children } = parent;\n if (open > 0 && view instanceof MarkView && children.length &&\n (last = children[children.length - 1]) instanceof MarkView && last.mark.eq(view.mark)) {\n joinInlineInto(last, view.children[0], open - 1);\n }\n else {\n children.push(view);\n view.setParent(parent);\n }\n parent.length += view.length;\n}\nfunction coordsInChildren(view, pos, side) {\n let before = null, beforePos = -1, after = null, afterPos = -1;\n function scan(view, pos) {\n for (let i = 0, off = 0; i < view.children.length && off <= pos; i++) {\n let child = view.children[i], end = off + child.length;\n if (end >= pos) {\n if (child.children.length) {\n scan(child, pos - off);\n }\n else if ((!after || after.isHidden && side > 0) &&\n (end > pos || off == end && child.getSide() > 0)) {\n after = child;\n afterPos = pos - off;\n }\n else if (off < pos || (off == end && child.getSide() < 0) && !child.isHidden) {\n before = child;\n beforePos = pos - off;\n }\n }\n off = end;\n }\n }\n scan(view, pos);\n let target = (side < 0 ? before : after) || before || after;\n if (target)\n return target.coordsAt(Math.max(0, target == before ? beforePos : afterPos), side);\n return fallbackRect(view);\n}\nfunction fallbackRect(view) {\n let last = view.dom.lastChild;\n if (!last)\n return view.dom.getBoundingClientRect();\n let rects = clientRectsFor(last);\n return rects[rects.length - 1] || null;\n}\n\nfunction combineAttrs(source, target) {\n for (let name in source) {\n if (name == \"class\" && target.class)\n target.class += \" \" + source.class;\n else if (name == \"style\" && target.style)\n target.style += \";\" + source.style;\n else\n target[name] = source[name];\n }\n return target;\n}\nconst noAttrs = /*@__PURE__*/Object.create(null);\nfunction attrsEq(a, b, ignore) {\n if (a == b)\n return true;\n if (!a)\n a = noAttrs;\n if (!b)\n b = noAttrs;\n let keysA = Object.keys(a), keysB = Object.keys(b);\n if (keysA.length - (ignore && keysA.indexOf(ignore) > -1 ? 1 : 0) !=\n keysB.length - (ignore && keysB.indexOf(ignore) > -1 ? 1 : 0))\n return false;\n for (let key of keysA) {\n if (key != ignore && (keysB.indexOf(key) == -1 || a[key] !== b[key]))\n return false;\n }\n return true;\n}\nfunction updateAttrs(dom, prev, attrs) {\n let changed = false;\n if (prev)\n for (let name in prev)\n if (!(attrs && name in attrs)) {\n changed = true;\n if (name == \"style\")\n dom.style.cssText = \"\";\n else\n dom.removeAttribute(name);\n }\n if (attrs)\n for (let name in attrs)\n if (!(prev && prev[name] == attrs[name])) {\n changed = true;\n if (name == \"style\")\n dom.style.cssText = attrs[name];\n else\n dom.setAttribute(name, attrs[name]);\n }\n return changed;\n}\nfunction getAttrs(dom) {\n let attrs = Object.create(null);\n for (let i = 0; i < dom.attributes.length; i++) {\n let attr = dom.attributes[i];\n attrs[attr.name] = attr.value;\n }\n return attrs;\n}\n\nclass LineView extends ContentView {\n constructor() {\n super(...arguments);\n this.children = [];\n this.length = 0;\n this.prevAttrs = undefined;\n this.attrs = null;\n this.breakAfter = 0;\n }\n // Consumes source\n merge(from, to, source, hasStart, openStart, openEnd) {\n if (source) {\n if (!(source instanceof LineView))\n return false;\n if (!this.dom)\n source.transferDOM(this); // Reuse source.dom when appropriate\n }\n if (hasStart)\n this.setDeco(source ? source.attrs : null);\n mergeChildrenInto(this, from, to, source ? source.children : [], openStart, openEnd);\n return true;\n }\n split(at) {\n let end = new LineView;\n end.breakAfter = this.breakAfter;\n if (this.length == 0)\n return end;\n let { i, off } = this.childPos(at);\n if (off) {\n end.append(this.children[i].split(off), 0);\n this.children[i].merge(off, this.children[i].length, null, false, 0, 0);\n i++;\n }\n for (let j = i; j < this.children.length; j++)\n end.append(this.children[j], 0);\n while (i > 0 && this.children[i - 1].length == 0)\n this.children[--i].destroy();\n this.children.length = i;\n this.markDirty();\n this.length = at;\n return end;\n }\n transferDOM(other) {\n if (!this.dom)\n return;\n this.markDirty();\n other.setDOM(this.dom);\n other.prevAttrs = this.prevAttrs === undefined ? this.attrs : this.prevAttrs;\n this.prevAttrs = undefined;\n this.dom = null;\n }\n setDeco(attrs) {\n if (!attrsEq(this.attrs, attrs)) {\n if (this.dom) {\n this.prevAttrs = this.attrs;\n this.markDirty();\n }\n this.attrs = attrs;\n }\n }\n append(child, openStart) {\n joinInlineInto(this, child, openStart);\n }\n // Only called when building a line view in ContentBuilder\n addLineDeco(deco) {\n let attrs = deco.spec.attributes, cls = deco.spec.class;\n if (attrs)\n this.attrs = combineAttrs(attrs, this.attrs || {});\n if (cls)\n this.attrs = combineAttrs({ class: cls }, this.attrs || {});\n }\n domAtPos(pos) {\n return inlineDOMAtPos(this, pos);\n }\n reuseDOM(node) {\n if (node.nodeName == \"DIV\") {\n this.setDOM(node);\n this.flags |= 4 /* ViewFlag.AttrsDirty */ | 2 /* ViewFlag.NodeDirty */;\n }\n }\n sync(view, track) {\n var _a;\n if (!this.dom) {\n this.setDOM(document.createElement(\"div\"));\n this.dom.className = \"cm-line\";\n this.prevAttrs = this.attrs ? null : undefined;\n }\n else if (this.flags & 4 /* ViewFlag.AttrsDirty */) {\n clearAttributes(this.dom);\n this.dom.className = \"cm-line\";\n this.prevAttrs = this.attrs ? null : undefined;\n }\n if (this.prevAttrs !== undefined) {\n updateAttrs(this.dom, this.prevAttrs, this.attrs);\n this.dom.classList.add(\"cm-line\");\n this.prevAttrs = undefined;\n }\n super.sync(view, track);\n let last = this.dom.lastChild;\n while (last && ContentView.get(last) instanceof MarkView)\n last = last.lastChild;\n if (!last || !this.length ||\n last.nodeName != \"BR\" && ((_a = ContentView.get(last)) === null || _a === void 0 ? void 0 : _a.isEditable) == false &&\n (!browser.ios || !this.children.some(ch => ch instanceof TextView))) {\n let hack = document.createElement(\"BR\");\n hack.cmIgnore = true;\n this.dom.appendChild(hack);\n }\n }\n measureTextSize() {\n if (this.children.length == 0 || this.length > 20)\n return null;\n let totalWidth = 0, textHeight;\n for (let child of this.children) {\n if (!(child instanceof TextView) || /[^ -~]/.test(child.text))\n return null;\n let rects = clientRectsFor(child.dom);\n if (rects.length != 1)\n return null;\n totalWidth += rects[0].width;\n textHeight = rects[0].height;\n }\n return !totalWidth ? null : {\n lineHeight: this.dom.getBoundingClientRect().height,\n charWidth: totalWidth / this.length,\n textHeight\n };\n }\n coordsAt(pos, side) {\n let rect = coordsInChildren(this, pos, side);\n // Correct rectangle height for empty lines when the returned\n // height is larger than the text height.\n if (!this.children.length && rect && this.parent) {\n let { heightOracle } = this.parent.view.viewState, height = rect.bottom - rect.top;\n if (Math.abs(height - heightOracle.lineHeight) < 2 && heightOracle.textHeight < height) {\n let dist = (height - heightOracle.textHeight) / 2;\n return { top: rect.top + dist, bottom: rect.bottom - dist, left: rect.left, right: rect.left };\n }\n }\n return rect;\n }\n become(_other) { return false; }\n covers() { return true; }\n static find(docView, pos) {\n for (let i = 0, off = 0; i < docView.children.length; i++) {\n let block = docView.children[i], end = off + block.length;\n if (end >= pos) {\n if (block instanceof LineView)\n return block;\n if (end > pos)\n break;\n }\n off = end + block.breakAfter;\n }\n return null;\n }\n}\nclass BlockWidgetView extends ContentView {\n constructor(widget, length, deco) {\n super();\n this.widget = widget;\n this.length = length;\n this.deco = deco;\n this.breakAfter = 0;\n this.prevWidget = null;\n }\n merge(from, to, source, _takeDeco, openStart, openEnd) {\n if (source && (!(source instanceof BlockWidgetView) || !this.widget.compare(source.widget) ||\n from > 0 && openStart <= 0 || to < this.length && openEnd <= 0))\n return false;\n this.length = from + (source ? source.length : 0) + (this.length - to);\n return true;\n }\n domAtPos(pos) {\n return pos == 0 ? DOMPos.before(this.dom) : DOMPos.after(this.dom, pos == this.length);\n }\n split(at) {\n let len = this.length - at;\n this.length = at;\n let end = new BlockWidgetView(this.widget, len, this.deco);\n end.breakAfter = this.breakAfter;\n return end;\n }\n get children() { return noChildren; }\n sync(view) {\n if (!this.dom || !this.widget.updateDOM(this.dom, view)) {\n if (this.dom && this.prevWidget)\n this.prevWidget.destroy(this.dom);\n this.prevWidget = null;\n this.setDOM(this.widget.toDOM(view));\n this.dom.contentEditable = \"false\";\n }\n }\n get overrideDOMText() {\n return this.parent ? this.parent.view.state.doc.slice(this.posAtStart, this.posAtEnd) : Text.empty;\n }\n domBoundsAround() { return null; }\n become(other) {\n if (other instanceof BlockWidgetView &&\n other.widget.constructor == this.widget.constructor) {\n if (!other.widget.compare(this.widget))\n this.markDirty(true);\n if (this.dom && !this.prevWidget)\n this.prevWidget = this.widget;\n this.widget = other.widget;\n this.length = other.length;\n this.deco = other.deco;\n this.breakAfter = other.breakAfter;\n return true;\n }\n return false;\n }\n ignoreMutation() { return true; }\n ignoreEvent(event) { return this.widget.ignoreEvent(event); }\n get isEditable() { return false; }\n get isWidget() { return true; }\n coordsAt(pos, side) {\n return this.widget.coordsAt(this.dom, pos, side);\n }\n destroy() {\n super.destroy();\n if (this.dom)\n this.widget.destroy(this.dom);\n }\n covers(side) {\n let { startSide, endSide } = this.deco;\n return startSide == endSide ? false : side < 0 ? startSide < 0 : endSide > 0;\n }\n}\n\n/**\nWidgets added to the content are described by subclasses of this\nclass. Using a description object like that makes it possible to\ndelay creating of the DOM structure for a widget until it is\nneeded, and to avoid redrawing widgets even if the decorations\nthat define them are recreated.\n*/\nclass WidgetType {\n /**\n Compare this instance to another instance of the same type.\n (TypeScript can't express this, but only instances of the same\n specific class will be passed to this method.) This is used to\n avoid redrawing widgets when they are replaced by a new\n decoration of the same type. The default implementation just\n returns `false`, which will cause new instances of the widget to\n always be redrawn.\n */\n eq(widget) { return false; }\n /**\n Update a DOM element created by a widget of the same type (but\n different, non-`eq` content) to reflect this widget. May return\n true to indicate that it could update, false to indicate it\n couldn't (in which case the widget will be redrawn). The default\n implementation just returns false.\n */\n updateDOM(dom, view) { return false; }\n /**\n @internal\n */\n compare(other) {\n return this == other || this.constructor == other.constructor && this.eq(other);\n }\n /**\n The estimated height this widget will have, to be used when\n estimating the height of content that hasn't been drawn. May\n return -1 to indicate you don't know. The default implementation\n returns -1.\n */\n get estimatedHeight() { return -1; }\n /**\n For inline widgets that are displayed inline (as opposed to\n `inline-block`) and introduce line breaks (through `
    ` tags\n or textual newlines), this must indicate the amount of line\n breaks they introduce. Defaults to 0.\n */\n get lineBreaks() { return 0; }\n /**\n Can be used to configure which kinds of events inside the widget\n should be ignored by the editor. The default is to ignore all\n events.\n */\n ignoreEvent(event) { return true; }\n /**\n Override the way screen coordinates for positions at/in the\n widget are found. `pos` will be the offset into the widget, and\n `side` the side of the position that is being queried—less than\n zero for before, greater than zero for after, and zero for\n directly at that position.\n */\n coordsAt(dom, pos, side) { return null; }\n /**\n @internal\n */\n get isHidden() { return false; }\n /**\n This is called when the an instance of the widget is removed\n from the editor view.\n */\n destroy(dom) { }\n}\n/**\nThe different types of blocks that can occur in an editor view.\n*/\nvar BlockType = /*@__PURE__*/(function (BlockType) {\n /**\n A line of text.\n */\n BlockType[BlockType[\"Text\"] = 0] = \"Text\";\n /**\n A block widget associated with the position after it.\n */\n BlockType[BlockType[\"WidgetBefore\"] = 1] = \"WidgetBefore\";\n /**\n A block widget associated with the position before it.\n */\n BlockType[BlockType[\"WidgetAfter\"] = 2] = \"WidgetAfter\";\n /**\n A block widget [replacing](https://codemirror.net/6/docs/ref/#view.Decoration^replace) a range of content.\n */\n BlockType[BlockType[\"WidgetRange\"] = 3] = \"WidgetRange\";\nreturn BlockType})(BlockType || (BlockType = {}));\n/**\nA decoration provides information on how to draw or style a piece\nof content. You'll usually use it wrapped in a\n[`Range`](https://codemirror.net/6/docs/ref/#state.Range), which adds a start and end position.\n@nonabstract\n*/\nclass Decoration extends RangeValue {\n constructor(\n /**\n @internal\n */\n startSide, \n /**\n @internal\n */\n endSide, \n /**\n @internal\n */\n widget, \n /**\n The config object used to create this decoration. You can\n include additional properties in there to store metadata about\n your decoration.\n */\n spec) {\n super();\n this.startSide = startSide;\n this.endSide = endSide;\n this.widget = widget;\n this.spec = spec;\n }\n /**\n @internal\n */\n get heightRelevant() { return false; }\n /**\n Create a mark decoration, which influences the styling of the\n content in its range. Nested mark decorations will cause nested\n DOM elements to be created. Nesting order is determined by\n precedence of the [facet](https://codemirror.net/6/docs/ref/#view.EditorView^decorations), with\n the higher-precedence decorations creating the inner DOM nodes.\n Such elements are split on line boundaries and on the boundaries\n of lower-precedence decorations.\n */\n static mark(spec) {\n return new MarkDecoration(spec);\n }\n /**\n Create a widget decoration, which displays a DOM element at the\n given position.\n */\n static widget(spec) {\n let side = Math.max(-10000, Math.min(10000, spec.side || 0)), block = !!spec.block;\n side += (block && !spec.inlineOrder)\n ? (side > 0 ? 300000000 /* Side.BlockAfter */ : -400000000 /* Side.BlockBefore */)\n : (side > 0 ? 100000000 /* Side.InlineAfter */ : -100000000 /* Side.InlineBefore */);\n return new PointDecoration(spec, side, side, block, spec.widget || null, false);\n }\n /**\n Create a replace decoration which replaces the given range with\n a widget, or simply hides it.\n */\n static replace(spec) {\n let block = !!spec.block, startSide, endSide;\n if (spec.isBlockGap) {\n startSide = -500000000 /* Side.GapStart */;\n endSide = 400000000 /* Side.GapEnd */;\n }\n else {\n let { start, end } = getInclusive(spec, block);\n startSide = (start ? (block ? -300000000 /* Side.BlockIncStart */ : -1 /* Side.InlineIncStart */) : 500000000 /* Side.NonIncStart */) - 1;\n endSide = (end ? (block ? 200000000 /* Side.BlockIncEnd */ : 1 /* Side.InlineIncEnd */) : -600000000 /* Side.NonIncEnd */) + 1;\n }\n return new PointDecoration(spec, startSide, endSide, block, spec.widget || null, true);\n }\n /**\n Create a line decoration, which can add DOM attributes to the\n line starting at the given position.\n */\n static line(spec) {\n return new LineDecoration(spec);\n }\n /**\n Build a [`DecorationSet`](https://codemirror.net/6/docs/ref/#view.DecorationSet) from the given\n decorated range or ranges. If the ranges aren't already sorted,\n pass `true` for `sort` to make the library sort them for you.\n */\n static set(of, sort = false) {\n return RangeSet.of(of, sort);\n }\n /**\n @internal\n */\n hasHeight() { return this.widget ? this.widget.estimatedHeight > -1 : false; }\n}\n/**\nThe empty set of decorations.\n*/\nDecoration.none = RangeSet.empty;\nclass MarkDecoration extends Decoration {\n constructor(spec) {\n let { start, end } = getInclusive(spec);\n super(start ? -1 /* Side.InlineIncStart */ : 500000000 /* Side.NonIncStart */, end ? 1 /* Side.InlineIncEnd */ : -600000000 /* Side.NonIncEnd */, null, spec);\n this.tagName = spec.tagName || \"span\";\n this.class = spec.class || \"\";\n this.attrs = spec.attributes || null;\n }\n eq(other) {\n var _a, _b;\n return this == other ||\n other instanceof MarkDecoration &&\n this.tagName == other.tagName &&\n (this.class || ((_a = this.attrs) === null || _a === void 0 ? void 0 : _a.class)) == (other.class || ((_b = other.attrs) === null || _b === void 0 ? void 0 : _b.class)) &&\n attrsEq(this.attrs, other.attrs, \"class\");\n }\n range(from, to = from) {\n if (from >= to)\n throw new RangeError(\"Mark decorations may not be empty\");\n return super.range(from, to);\n }\n}\nMarkDecoration.prototype.point = false;\nclass LineDecoration extends Decoration {\n constructor(spec) {\n super(-200000000 /* Side.Line */, -200000000 /* Side.Line */, null, spec);\n }\n eq(other) {\n return other instanceof LineDecoration &&\n this.spec.class == other.spec.class &&\n attrsEq(this.spec.attributes, other.spec.attributes);\n }\n range(from, to = from) {\n if (to != from)\n throw new RangeError(\"Line decoration ranges must be zero-length\");\n return super.range(from, to);\n }\n}\nLineDecoration.prototype.mapMode = MapMode.TrackBefore;\nLineDecoration.prototype.point = true;\nclass PointDecoration extends Decoration {\n constructor(spec, startSide, endSide, block, widget, isReplace) {\n super(startSide, endSide, widget, spec);\n this.block = block;\n this.isReplace = isReplace;\n this.mapMode = !block ? MapMode.TrackDel : startSide <= 0 ? MapMode.TrackBefore : MapMode.TrackAfter;\n }\n // Only relevant when this.block == true\n get type() {\n return this.startSide != this.endSide ? BlockType.WidgetRange\n : this.startSide <= 0 ? BlockType.WidgetBefore : BlockType.WidgetAfter;\n }\n get heightRelevant() {\n return this.block || !!this.widget && (this.widget.estimatedHeight >= 5 || this.widget.lineBreaks > 0);\n }\n eq(other) {\n return other instanceof PointDecoration &&\n widgetsEq(this.widget, other.widget) &&\n this.block == other.block &&\n this.startSide == other.startSide && this.endSide == other.endSide;\n }\n range(from, to = from) {\n if (this.isReplace && (from > to || (from == to && this.startSide > 0 && this.endSide <= 0)))\n throw new RangeError(\"Invalid range for replacement decoration\");\n if (!this.isReplace && to != from)\n throw new RangeError(\"Widget decorations can only have zero-length ranges\");\n return super.range(from, to);\n }\n}\nPointDecoration.prototype.point = true;\nfunction getInclusive(spec, block = false) {\n let { inclusiveStart: start, inclusiveEnd: end } = spec;\n if (start == null)\n start = spec.inclusive;\n if (end == null)\n end = spec.inclusive;\n return { start: start !== null && start !== void 0 ? start : block, end: end !== null && end !== void 0 ? end : block };\n}\nfunction widgetsEq(a, b) {\n return a == b || !!(a && b && a.compare(b));\n}\nfunction addRange(from, to, ranges, margin = 0) {\n let last = ranges.length - 1;\n if (last >= 0 && ranges[last] + margin >= from)\n ranges[last] = Math.max(ranges[last], to);\n else\n ranges.push(from, to);\n}\n\nclass ContentBuilder {\n constructor(doc, pos, end, disallowBlockEffectsFor) {\n this.doc = doc;\n this.pos = pos;\n this.end = end;\n this.disallowBlockEffectsFor = disallowBlockEffectsFor;\n this.content = [];\n this.curLine = null;\n this.breakAtStart = 0;\n this.pendingBuffer = 0 /* Buf.No */;\n this.bufferMarks = [];\n // Set to false directly after a widget that covers the position after it\n this.atCursorPos = true;\n this.openStart = -1;\n this.openEnd = -1;\n this.text = \"\";\n this.textOff = 0;\n this.cursor = doc.iter();\n this.skip = pos;\n }\n posCovered() {\n if (this.content.length == 0)\n return !this.breakAtStart && this.doc.lineAt(this.pos).from != this.pos;\n let last = this.content[this.content.length - 1];\n return !(last.breakAfter || last instanceof BlockWidgetView && last.deco.endSide < 0);\n }\n getLine() {\n if (!this.curLine) {\n this.content.push(this.curLine = new LineView);\n this.atCursorPos = true;\n }\n return this.curLine;\n }\n flushBuffer(active = this.bufferMarks) {\n if (this.pendingBuffer) {\n this.curLine.append(wrapMarks(new WidgetBufferView(-1), active), active.length);\n this.pendingBuffer = 0 /* Buf.No */;\n }\n }\n addBlockWidget(view) {\n this.flushBuffer();\n this.curLine = null;\n this.content.push(view);\n }\n finish(openEnd) {\n if (this.pendingBuffer && openEnd <= this.bufferMarks.length)\n this.flushBuffer();\n else\n this.pendingBuffer = 0 /* Buf.No */;\n if (!this.posCovered() &&\n !(openEnd && this.content.length && this.content[this.content.length - 1] instanceof BlockWidgetView))\n this.getLine();\n }\n buildText(length, active, openStart) {\n while (length > 0) {\n if (this.textOff == this.text.length) {\n let { value, lineBreak, done } = this.cursor.next(this.skip);\n this.skip = 0;\n if (done)\n throw new Error(\"Ran out of text content when drawing inline views\");\n if (lineBreak) {\n if (!this.posCovered())\n this.getLine();\n if (this.content.length)\n this.content[this.content.length - 1].breakAfter = 1;\n else\n this.breakAtStart = 1;\n this.flushBuffer();\n this.curLine = null;\n this.atCursorPos = true;\n length--;\n continue;\n }\n else {\n this.text = value;\n this.textOff = 0;\n }\n }\n let take = Math.min(this.text.length - this.textOff, length, 512 /* T.Chunk */);\n this.flushBuffer(active.slice(active.length - openStart));\n this.getLine().append(wrapMarks(new TextView(this.text.slice(this.textOff, this.textOff + take)), active), openStart);\n this.atCursorPos = true;\n this.textOff += take;\n length -= take;\n openStart = 0;\n }\n }\n span(from, to, active, openStart) {\n this.buildText(to - from, active, openStart);\n this.pos = to;\n if (this.openStart < 0)\n this.openStart = openStart;\n }\n point(from, to, deco, active, openStart, index) {\n if (this.disallowBlockEffectsFor[index] && deco instanceof PointDecoration) {\n if (deco.block)\n throw new RangeError(\"Block decorations may not be specified via plugins\");\n if (to > this.doc.lineAt(this.pos).to)\n throw new RangeError(\"Decorations that replace line breaks may not be specified via plugins\");\n }\n let len = to - from;\n if (deco instanceof PointDecoration) {\n if (deco.block) {\n if (deco.startSide > 0 && !this.posCovered())\n this.getLine();\n this.addBlockWidget(new BlockWidgetView(deco.widget || new NullWidget(\"div\"), len, deco));\n }\n else {\n let view = WidgetView.create(deco.widget || new NullWidget(\"span\"), len, len ? 0 : deco.startSide);\n let cursorBefore = this.atCursorPos && !view.isEditable && openStart <= active.length &&\n (from < to || deco.startSide > 0);\n let cursorAfter = !view.isEditable && (from < to || openStart > active.length || deco.startSide <= 0);\n let line = this.getLine();\n if (this.pendingBuffer == 2 /* Buf.IfCursor */ && !cursorBefore && !view.isEditable)\n this.pendingBuffer = 0 /* Buf.No */;\n this.flushBuffer(active);\n if (cursorBefore) {\n line.append(wrapMarks(new WidgetBufferView(1), active), openStart);\n openStart = active.length + Math.max(0, openStart - active.length);\n }\n line.append(wrapMarks(view, active), openStart);\n this.atCursorPos = cursorAfter;\n this.pendingBuffer = !cursorAfter ? 0 /* Buf.No */ : from < to || openStart > active.length ? 1 /* Buf.Yes */ : 2 /* Buf.IfCursor */;\n if (this.pendingBuffer)\n this.bufferMarks = active.slice();\n }\n }\n else if (this.doc.lineAt(this.pos).from == this.pos) { // Line decoration\n this.getLine().addLineDeco(deco);\n }\n if (len) {\n // Advance the iterator past the replaced content\n if (this.textOff + len <= this.text.length) {\n this.textOff += len;\n }\n else {\n this.skip += len - (this.text.length - this.textOff);\n this.text = \"\";\n this.textOff = 0;\n }\n this.pos = to;\n }\n if (this.openStart < 0)\n this.openStart = openStart;\n }\n static build(text, from, to, decorations, dynamicDecorationMap) {\n let builder = new ContentBuilder(text, from, to, dynamicDecorationMap);\n builder.openEnd = RangeSet.spans(decorations, from, to, builder);\n if (builder.openStart < 0)\n builder.openStart = builder.openEnd;\n builder.finish(builder.openEnd);\n return builder;\n }\n}\nfunction wrapMarks(view, active) {\n for (let mark of active)\n view = new MarkView(mark, [view], view.length);\n return view;\n}\nclass NullWidget extends WidgetType {\n constructor(tag) {\n super();\n this.tag = tag;\n }\n eq(other) { return other.tag == this.tag; }\n toDOM() { return document.createElement(this.tag); }\n updateDOM(elt) { return elt.nodeName.toLowerCase() == this.tag; }\n get isHidden() { return true; }\n}\n\nconst clickAddsSelectionRange = /*@__PURE__*/Facet.define();\nconst dragMovesSelection$1 = /*@__PURE__*/Facet.define();\nconst mouseSelectionStyle = /*@__PURE__*/Facet.define();\nconst exceptionSink = /*@__PURE__*/Facet.define();\nconst updateListener = /*@__PURE__*/Facet.define();\nconst inputHandler = /*@__PURE__*/Facet.define();\nconst focusChangeEffect = /*@__PURE__*/Facet.define();\nconst perLineTextDirection = /*@__PURE__*/Facet.define({\n combine: values => values.some(x => x)\n});\nconst nativeSelectionHidden = /*@__PURE__*/Facet.define({\n combine: values => values.some(x => x)\n});\nclass ScrollTarget {\n constructor(range, y = \"nearest\", x = \"nearest\", yMargin = 5, xMargin = 5, \n // This data structure is abused to also store precise scroll\n // snapshots, instead of a `scrollIntoView` request. When this\n // flag is `true`, `range` points at a position in the reference\n // line, `yMargin` holds the difference between the top of that\n // line and the top of the editor, and `xMargin` holds the\n // editor's `scrollLeft`.\n isSnapshot = false) {\n this.range = range;\n this.y = y;\n this.x = x;\n this.yMargin = yMargin;\n this.xMargin = xMargin;\n this.isSnapshot = isSnapshot;\n }\n map(changes) {\n return changes.empty ? this :\n new ScrollTarget(this.range.map(changes), this.y, this.x, this.yMargin, this.xMargin, this.isSnapshot);\n }\n clip(state) {\n return this.range.to <= state.doc.length ? this :\n new ScrollTarget(EditorSelection.cursor(state.doc.length), this.y, this.x, this.yMargin, this.xMargin, this.isSnapshot);\n }\n}\nconst scrollIntoView = /*@__PURE__*/StateEffect.define({ map: (t, ch) => t.map(ch) });\n/**\nLog or report an unhandled exception in client code. Should\nprobably only be used by extension code that allows client code to\nprovide functions, and calls those functions in a context where an\nexception can't be propagated to calling code in a reasonable way\n(for example when in an event handler).\n\nEither calls a handler registered with\n[`EditorView.exceptionSink`](https://codemirror.net/6/docs/ref/#view.EditorView^exceptionSink),\n`window.onerror`, if defined, or `console.error` (in which case\nit'll pass `context`, when given, as first argument).\n*/\nfunction logException(state, exception, context) {\n let handler = state.facet(exceptionSink);\n if (handler.length)\n handler[0](exception);\n else if (window.onerror)\n window.onerror(String(exception), context, undefined, undefined, exception);\n else if (context)\n console.error(context + \":\", exception);\n else\n console.error(exception);\n}\nconst editable = /*@__PURE__*/Facet.define({ combine: values => values.length ? values[0] : true });\nlet nextPluginID = 0;\nconst viewPlugin = /*@__PURE__*/Facet.define();\n/**\nView plugins associate stateful values with a view. They can\ninfluence the way the content is drawn, and are notified of things\nthat happen in the view.\n*/\nclass ViewPlugin {\n constructor(\n /**\n @internal\n */\n id, \n /**\n @internal\n */\n create, \n /**\n @internal\n */\n domEventHandlers, \n /**\n @internal\n */\n domEventObservers, buildExtensions) {\n this.id = id;\n this.create = create;\n this.domEventHandlers = domEventHandlers;\n this.domEventObservers = domEventObservers;\n this.extension = buildExtensions(this);\n }\n /**\n Define a plugin from a constructor function that creates the\n plugin's value, given an editor view.\n */\n static define(create, spec) {\n const { eventHandlers, eventObservers, provide, decorations: deco } = spec || {};\n return new ViewPlugin(nextPluginID++, create, eventHandlers, eventObservers, plugin => {\n let ext = [viewPlugin.of(plugin)];\n if (deco)\n ext.push(decorations.of(view => {\n let pluginInst = view.plugin(plugin);\n return pluginInst ? deco(pluginInst) : Decoration.none;\n }));\n if (provide)\n ext.push(provide(plugin));\n return ext;\n });\n }\n /**\n Create a plugin for a class whose constructor takes a single\n editor view as argument.\n */\n static fromClass(cls, spec) {\n return ViewPlugin.define(view => new cls(view), spec);\n }\n}\nclass PluginInstance {\n constructor(spec) {\n this.spec = spec;\n // When starting an update, all plugins have this field set to the\n // update object, indicating they need to be updated. When finished\n // updating, it is set to `false`. Retrieving a plugin that needs to\n // be updated with `view.plugin` forces an eager update.\n this.mustUpdate = null;\n // This is null when the plugin is initially created, but\n // initialized on the first update.\n this.value = null;\n }\n update(view) {\n if (!this.value) {\n if (this.spec) {\n try {\n this.value = this.spec.create(view);\n }\n catch (e) {\n logException(view.state, e, \"CodeMirror plugin crashed\");\n this.deactivate();\n }\n }\n }\n else if (this.mustUpdate) {\n let update = this.mustUpdate;\n this.mustUpdate = null;\n if (this.value.update) {\n try {\n this.value.update(update);\n }\n catch (e) {\n logException(update.state, e, \"CodeMirror plugin crashed\");\n if (this.value.destroy)\n try {\n this.value.destroy();\n }\n catch (_) { }\n this.deactivate();\n }\n }\n }\n return this;\n }\n destroy(view) {\n var _a;\n if ((_a = this.value) === null || _a === void 0 ? void 0 : _a.destroy) {\n try {\n this.value.destroy();\n }\n catch (e) {\n logException(view.state, e, \"CodeMirror plugin crashed\");\n }\n }\n }\n deactivate() {\n this.spec = this.value = null;\n }\n}\nconst editorAttributes = /*@__PURE__*/Facet.define();\nconst contentAttributes = /*@__PURE__*/Facet.define();\n// Provide decorations\nconst decorations = /*@__PURE__*/Facet.define();\nconst atomicRanges = /*@__PURE__*/Facet.define();\nconst bidiIsolatedRanges = /*@__PURE__*/Facet.define();\nfunction getIsolatedRanges(view, from, to) {\n let isolates = view.state.facet(bidiIsolatedRanges);\n if (!isolates.length)\n return isolates;\n let sets = isolates.map(i => i instanceof Function ? i(view) : i);\n let result = [];\n RangeSet.spans(sets, from, to, {\n point() { },\n span(from, to, active, open) {\n let level = result;\n for (let i = active.length - 1; i >= 0; i--, open--) {\n let iso = active[i].spec.bidiIsolate, update;\n if (iso == null)\n continue;\n if (open > 0 && level.length &&\n (update = level[level.length - 1]).to == from && update.direction == iso) {\n update.to = to;\n level = update.inner;\n }\n else {\n let add = { from, to, direction: iso, inner: [] };\n level.push(add);\n level = add.inner;\n }\n }\n }\n });\n return result;\n}\nconst scrollMargins = /*@__PURE__*/Facet.define();\nfunction getScrollMargins(view) {\n let left = 0, right = 0, top = 0, bottom = 0;\n for (let source of view.state.facet(scrollMargins)) {\n let m = source(view);\n if (m) {\n if (m.left != null)\n left = Math.max(left, m.left);\n if (m.right != null)\n right = Math.max(right, m.right);\n if (m.top != null)\n top = Math.max(top, m.top);\n if (m.bottom != null)\n bottom = Math.max(bottom, m.bottom);\n }\n }\n return { left, right, top, bottom };\n}\nconst styleModule = /*@__PURE__*/Facet.define();\nclass ChangedRange {\n constructor(fromA, toA, fromB, toB) {\n this.fromA = fromA;\n this.toA = toA;\n this.fromB = fromB;\n this.toB = toB;\n }\n join(other) {\n return new ChangedRange(Math.min(this.fromA, other.fromA), Math.max(this.toA, other.toA), Math.min(this.fromB, other.fromB), Math.max(this.toB, other.toB));\n }\n addToSet(set) {\n let i = set.length, me = this;\n for (; i > 0; i--) {\n let range = set[i - 1];\n if (range.fromA > me.toA)\n continue;\n if (range.toA < me.fromA)\n break;\n me = me.join(range);\n set.splice(i - 1, 1);\n }\n set.splice(i, 0, me);\n return set;\n }\n static extendWithRanges(diff, ranges) {\n if (ranges.length == 0)\n return diff;\n let result = [];\n for (let dI = 0, rI = 0, posA = 0, posB = 0;; dI++) {\n let next = dI == diff.length ? null : diff[dI], off = posA - posB;\n let end = next ? next.fromB : 1e9;\n while (rI < ranges.length && ranges[rI] < end) {\n let from = ranges[rI], to = ranges[rI + 1];\n let fromB = Math.max(posB, from), toB = Math.min(end, to);\n if (fromB <= toB)\n new ChangedRange(fromB + off, toB + off, fromB, toB).addToSet(result);\n if (to > end)\n break;\n else\n rI += 2;\n }\n if (!next)\n return result;\n new ChangedRange(next.fromA, next.toA, next.fromB, next.toB).addToSet(result);\n posA = next.toA;\n posB = next.toB;\n }\n }\n}\n/**\nView [plugins](https://codemirror.net/6/docs/ref/#view.ViewPlugin) are given instances of this\nclass, which describe what happened, whenever the view is updated.\n*/\nclass ViewUpdate {\n constructor(\n /**\n The editor view that the update is associated with.\n */\n view, \n /**\n The new editor state.\n */\n state, \n /**\n The transactions involved in the update. May be empty.\n */\n transactions) {\n this.view = view;\n this.state = state;\n this.transactions = transactions;\n /**\n @internal\n */\n this.flags = 0;\n this.startState = view.state;\n this.changes = ChangeSet.empty(this.startState.doc.length);\n for (let tr of transactions)\n this.changes = this.changes.compose(tr.changes);\n let changedRanges = [];\n this.changes.iterChangedRanges((fromA, toA, fromB, toB) => changedRanges.push(new ChangedRange(fromA, toA, fromB, toB)));\n this.changedRanges = changedRanges;\n }\n /**\n @internal\n */\n static create(view, state, transactions) {\n return new ViewUpdate(view, state, transactions);\n }\n /**\n Tells you whether the [viewport](https://codemirror.net/6/docs/ref/#view.EditorView.viewport) or\n [visible ranges](https://codemirror.net/6/docs/ref/#view.EditorView.visibleRanges) changed in this\n update.\n */\n get viewportChanged() {\n return (this.flags & 4 /* UpdateFlag.Viewport */) > 0;\n }\n /**\n Indicates whether the height of a block element in the editor\n changed in this update.\n */\n get heightChanged() {\n return (this.flags & 2 /* UpdateFlag.Height */) > 0;\n }\n /**\n Returns true when the document was modified or the size of the\n editor, or elements within the editor, changed.\n */\n get geometryChanged() {\n return this.docChanged || (this.flags & (8 /* UpdateFlag.Geometry */ | 2 /* UpdateFlag.Height */)) > 0;\n }\n /**\n True when this update indicates a focus change.\n */\n get focusChanged() {\n return (this.flags & 1 /* UpdateFlag.Focus */) > 0;\n }\n /**\n Whether the document changed in this update.\n */\n get docChanged() {\n return !this.changes.empty;\n }\n /**\n Whether the selection was explicitly set in this update.\n */\n get selectionSet() {\n return this.transactions.some(tr => tr.selection);\n }\n /**\n @internal\n */\n get empty() { return this.flags == 0 && this.transactions.length == 0; }\n}\n\n/**\nUsed to indicate [text direction](https://codemirror.net/6/docs/ref/#view.EditorView.textDirection).\n*/\nvar Direction = /*@__PURE__*/(function (Direction) {\n // (These are chosen to match the base levels, in bidi algorithm\n // terms, of spans in that direction.)\n /**\n Left-to-right.\n */\n Direction[Direction[\"LTR\"] = 0] = \"LTR\";\n /**\n Right-to-left.\n */\n Direction[Direction[\"RTL\"] = 1] = \"RTL\";\nreturn Direction})(Direction || (Direction = {}));\nconst LTR = Direction.LTR, RTL = Direction.RTL;\n// Decode a string with each type encoded as log2(type)\nfunction dec(str) {\n let result = [];\n for (let i = 0; i < str.length; i++)\n result.push(1 << +str[i]);\n return result;\n}\n// Character types for codepoints 0 to 0xf8\nconst LowTypes = /*@__PURE__*/dec(\"88888888888888888888888888888888888666888888787833333333337888888000000000000000000000000008888880000000000000000000000000088888888888888888888888888888888888887866668888088888663380888308888800000000000000000000000800000000000000000000000000000008\");\n// Character types for codepoints 0x600 to 0x6f9\nconst ArabicTypes = /*@__PURE__*/dec(\"4444448826627288999999999992222222222222222222222222222222222222222222222229999999999999999999994444444444644222822222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222999999949999999229989999223333333333\");\nconst Brackets = /*@__PURE__*/Object.create(null), BracketStack = [];\n// There's a lot more in\n// https://www.unicode.org/Public/UCD/latest/ucd/BidiBrackets.txt,\n// which are left out to keep code size down.\nfor (let p of [\"()\", \"[]\", \"{}\"]) {\n let l = /*@__PURE__*/p.charCodeAt(0), r = /*@__PURE__*/p.charCodeAt(1);\n Brackets[l] = r;\n Brackets[r] = -l;\n}\nfunction charType(ch) {\n return ch <= 0xf7 ? LowTypes[ch] :\n 0x590 <= ch && ch <= 0x5f4 ? 2 /* T.R */ :\n 0x600 <= ch && ch <= 0x6f9 ? ArabicTypes[ch - 0x600] :\n 0x6ee <= ch && ch <= 0x8ac ? 4 /* T.AL */ :\n 0x2000 <= ch && ch <= 0x200b ? 256 /* T.NI */ :\n 0xfb50 <= ch && ch <= 0xfdff ? 4 /* T.AL */ :\n ch == 0x200c ? 256 /* T.NI */ : 1 /* T.L */;\n}\nconst BidiRE = /[\\u0590-\\u05f4\\u0600-\\u06ff\\u0700-\\u08ac\\ufb50-\\ufdff]/;\n/**\nRepresents a contiguous range of text that has a single direction\n(as in left-to-right or right-to-left).\n*/\nclass BidiSpan {\n /**\n The direction of this span.\n */\n get dir() { return this.level % 2 ? RTL : LTR; }\n /**\n @internal\n */\n constructor(\n /**\n The start of the span (relative to the start of the line).\n */\n from, \n /**\n The end of the span.\n */\n to, \n /**\n The [\"bidi\n level\"](https://unicode.org/reports/tr9/#Basic_Display_Algorithm)\n of the span (in this context, 0 means\n left-to-right, 1 means right-to-left, 2 means left-to-right\n number inside right-to-left text).\n */\n level) {\n this.from = from;\n this.to = to;\n this.level = level;\n }\n /**\n @internal\n */\n side(end, dir) { return (this.dir == dir) == end ? this.to : this.from; }\n /**\n @internal\n */\n static find(order, index, level, assoc) {\n let maybe = -1;\n for (let i = 0; i < order.length; i++) {\n let span = order[i];\n if (span.from <= index && span.to >= index) {\n if (span.level == level)\n return i;\n // When multiple spans match, if assoc != 0, take the one that\n // covers that side, otherwise take the one with the minimum\n // level.\n if (maybe < 0 || (assoc != 0 ? (assoc < 0 ? span.from < index : span.to > index) : order[maybe].level > span.level))\n maybe = i;\n }\n }\n if (maybe < 0)\n throw new RangeError(\"Index out of range\");\n return maybe;\n }\n}\nfunction isolatesEq(a, b) {\n if (a.length != b.length)\n return false;\n for (let i = 0; i < a.length; i++) {\n let iA = a[i], iB = b[i];\n if (iA.from != iB.from || iA.to != iB.to || iA.direction != iB.direction || !isolatesEq(iA.inner, iB.inner))\n return false;\n }\n return true;\n}\n// Reused array of character types\nconst types = [];\n// Fill in the character types (in `types`) from `from` to `to` and\n// apply W normalization rules.\nfunction computeCharTypes(line, rFrom, rTo, isolates, outerType) {\n for (let iI = 0; iI <= isolates.length; iI++) {\n let from = iI ? isolates[iI - 1].to : rFrom, to = iI < isolates.length ? isolates[iI].from : rTo;\n let prevType = iI ? 256 /* T.NI */ : outerType;\n // W1. Examine each non-spacing mark (NSM) in the level run, and\n // change the type of the NSM to the type of the previous\n // character. If the NSM is at the start of the level run, it will\n // get the type of sor.\n // W2. Search backwards from each instance of a European number\n // until the first strong type (R, L, AL, or sor) is found. If an\n // AL is found, change the type of the European number to Arabic\n // number.\n // W3. Change all ALs to R.\n // (Left after this: L, R, EN, AN, ET, CS, NI)\n for (let i = from, prev = prevType, prevStrong = prevType; i < to; i++) {\n let type = charType(line.charCodeAt(i));\n if (type == 512 /* T.NSM */)\n type = prev;\n else if (type == 8 /* T.EN */ && prevStrong == 4 /* T.AL */)\n type = 16 /* T.AN */;\n types[i] = type == 4 /* T.AL */ ? 2 /* T.R */ : type;\n if (type & 7 /* T.Strong */)\n prevStrong = type;\n prev = type;\n }\n // W5. A sequence of European terminators adjacent to European\n // numbers changes to all European numbers.\n // W6. Otherwise, separators and terminators change to Other\n // Neutral.\n // W7. Search backwards from each instance of a European number\n // until the first strong type (R, L, or sor) is found. If an L is\n // found, then change the type of the European number to L.\n // (Left after this: L, R, EN+AN, NI)\n for (let i = from, prev = prevType, prevStrong = prevType; i < to; i++) {\n let type = types[i];\n if (type == 128 /* T.CS */) {\n if (i < to - 1 && prev == types[i + 1] && (prev & 24 /* T.Num */))\n type = types[i] = prev;\n else\n types[i] = 256 /* T.NI */;\n }\n else if (type == 64 /* T.ET */) {\n let end = i + 1;\n while (end < to && types[end] == 64 /* T.ET */)\n end++;\n let replace = (i && prev == 8 /* T.EN */) || (end < rTo && types[end] == 8 /* T.EN */) ? (prevStrong == 1 /* T.L */ ? 1 /* T.L */ : 8 /* T.EN */) : 256 /* T.NI */;\n for (let j = i; j < end; j++)\n types[j] = replace;\n i = end - 1;\n }\n else if (type == 8 /* T.EN */ && prevStrong == 1 /* T.L */) {\n types[i] = 1 /* T.L */;\n }\n prev = type;\n if (type & 7 /* T.Strong */)\n prevStrong = type;\n }\n }\n}\n// Process brackets throughout a run sequence.\nfunction processBracketPairs(line, rFrom, rTo, isolates, outerType) {\n let oppositeType = outerType == 1 /* T.L */ ? 2 /* T.R */ : 1 /* T.L */;\n for (let iI = 0, sI = 0, context = 0; iI <= isolates.length; iI++) {\n let from = iI ? isolates[iI - 1].to : rFrom, to = iI < isolates.length ? isolates[iI].from : rTo;\n // N0. Process bracket pairs in an isolating run sequence\n // sequentially in the logical order of the text positions of the\n // opening paired brackets using the logic given below. Within this\n // scope, bidirectional types EN and AN are treated as R.\n for (let i = from, ch, br, type; i < to; i++) {\n // Keeps [startIndex, type, strongSeen] triples for each open\n // bracket on BracketStack.\n if (br = Brackets[ch = line.charCodeAt(i)]) {\n if (br < 0) { // Closing bracket\n for (let sJ = sI - 3; sJ >= 0; sJ -= 3) {\n if (BracketStack[sJ + 1] == -br) {\n let flags = BracketStack[sJ + 2];\n let type = (flags & 2 /* Bracketed.EmbedInside */) ? outerType :\n !(flags & 4 /* Bracketed.OppositeInside */) ? 0 :\n (flags & 1 /* Bracketed.OppositeBefore */) ? oppositeType : outerType;\n if (type)\n types[i] = types[BracketStack[sJ]] = type;\n sI = sJ;\n break;\n }\n }\n }\n else if (BracketStack.length == 189 /* Bracketed.MaxDepth */) {\n break;\n }\n else {\n BracketStack[sI++] = i;\n BracketStack[sI++] = ch;\n BracketStack[sI++] = context;\n }\n }\n else if ((type = types[i]) == 2 /* T.R */ || type == 1 /* T.L */) {\n let embed = type == outerType;\n context = embed ? 0 : 1 /* Bracketed.OppositeBefore */;\n for (let sJ = sI - 3; sJ >= 0; sJ -= 3) {\n let cur = BracketStack[sJ + 2];\n if (cur & 2 /* Bracketed.EmbedInside */)\n break;\n if (embed) {\n BracketStack[sJ + 2] |= 2 /* Bracketed.EmbedInside */;\n }\n else {\n if (cur & 4 /* Bracketed.OppositeInside */)\n break;\n BracketStack[sJ + 2] |= 4 /* Bracketed.OppositeInside */;\n }\n }\n }\n }\n }\n}\nfunction processNeutrals(rFrom, rTo, isolates, outerType) {\n for (let iI = 0, prev = outerType; iI <= isolates.length; iI++) {\n let from = iI ? isolates[iI - 1].to : rFrom, to = iI < isolates.length ? isolates[iI].from : rTo;\n // N1. A sequence of neutrals takes the direction of the\n // surrounding strong text if the text on both sides has the same\n // direction. European and Arabic numbers act as if they were R in\n // terms of their influence on neutrals. Start-of-level-run (sor)\n // and end-of-level-run (eor) are used at level run boundaries.\n // N2. Any remaining neutrals take the embedding direction.\n // (Left after this: L, R, EN+AN)\n for (let i = from; i < to;) {\n let type = types[i];\n if (type == 256 /* T.NI */) {\n let end = i + 1;\n for (;;) {\n if (end == to) {\n if (iI == isolates.length)\n break;\n end = isolates[iI++].to;\n to = iI < isolates.length ? isolates[iI].from : rTo;\n }\n else if (types[end] == 256 /* T.NI */) {\n end++;\n }\n else {\n break;\n }\n }\n let beforeL = prev == 1 /* T.L */;\n let afterL = (end < rTo ? types[end] : outerType) == 1 /* T.L */;\n let replace = beforeL == afterL ? (beforeL ? 1 /* T.L */ : 2 /* T.R */) : outerType;\n for (let j = end, jI = iI, fromJ = jI ? isolates[jI - 1].to : rFrom; j > i;) {\n if (j == fromJ) {\n j = isolates[--jI].from;\n fromJ = jI ? isolates[jI - 1].to : rFrom;\n }\n types[--j] = replace;\n }\n i = end;\n }\n else {\n prev = type;\n i++;\n }\n }\n }\n}\n// Find the contiguous ranges of character types in a given range, and\n// emit spans for them. Flip the order of the spans as appropriate\n// based on the level, and call through to compute the spans for\n// isolates at the proper point.\nfunction emitSpans(line, from, to, level, baseLevel, isolates, order) {\n let ourType = level % 2 ? 2 /* T.R */ : 1 /* T.L */;\n if ((level % 2) == (baseLevel % 2)) { // Same dir as base direction, don't flip\n for (let iCh = from, iI = 0; iCh < to;) {\n // Scan a section of characters in direction ourType, unless\n // there's another type of char right after iCh, in which case\n // we scan a section of other characters (which, if ourType ==\n // T.L, may contain both T.R and T.AN chars).\n let sameDir = true, isNum = false;\n if (iI == isolates.length || iCh < isolates[iI].from) {\n let next = types[iCh];\n if (next != ourType) {\n sameDir = false;\n isNum = next == 16 /* T.AN */;\n }\n }\n // Holds an array of isolates to pass to a recursive call if we\n // must recurse (to distinguish T.AN inside an RTL section in\n // LTR text), null if we can emit directly\n let recurse = !sameDir && ourType == 1 /* T.L */ ? [] : null;\n let localLevel = sameDir ? level : level + 1;\n let iScan = iCh;\n run: for (;;) {\n if (iI < isolates.length && iScan == isolates[iI].from) {\n if (isNum)\n break run;\n let iso = isolates[iI];\n // Scan ahead to verify that there is another char in this dir after the isolate(s)\n if (!sameDir)\n for (let upto = iso.to, jI = iI + 1;;) {\n if (upto == to)\n break run;\n if (jI < isolates.length && isolates[jI].from == upto)\n upto = isolates[jI++].to;\n else if (types[upto] == ourType)\n break run;\n else\n break;\n }\n iI++;\n if (recurse) {\n recurse.push(iso);\n }\n else {\n if (iso.from > iCh)\n order.push(new BidiSpan(iCh, iso.from, localLevel));\n let dirSwap = (iso.direction == LTR) != !(localLevel % 2);\n computeSectionOrder(line, dirSwap ? level + 1 : level, baseLevel, iso.inner, iso.from, iso.to, order);\n iCh = iso.to;\n }\n iScan = iso.to;\n }\n else if (iScan == to || (sameDir ? types[iScan] != ourType : types[iScan] == ourType)) {\n break;\n }\n else {\n iScan++;\n }\n }\n if (recurse)\n emitSpans(line, iCh, iScan, level + 1, baseLevel, recurse, order);\n else if (iCh < iScan)\n order.push(new BidiSpan(iCh, iScan, localLevel));\n iCh = iScan;\n }\n }\n else {\n // Iterate in reverse to flip the span order. Same code again, but\n // going from the back of the section to the front\n for (let iCh = to, iI = isolates.length; iCh > from;) {\n let sameDir = true, isNum = false;\n if (!iI || iCh > isolates[iI - 1].to) {\n let next = types[iCh - 1];\n if (next != ourType) {\n sameDir = false;\n isNum = next == 16 /* T.AN */;\n }\n }\n let recurse = !sameDir && ourType == 1 /* T.L */ ? [] : null;\n let localLevel = sameDir ? level : level + 1;\n let iScan = iCh;\n run: for (;;) {\n if (iI && iScan == isolates[iI - 1].to) {\n if (isNum)\n break run;\n let iso = isolates[--iI];\n // Scan ahead to verify that there is another char in this dir after the isolate(s)\n if (!sameDir)\n for (let upto = iso.from, jI = iI;;) {\n if (upto == from)\n break run;\n if (jI && isolates[jI - 1].to == upto)\n upto = isolates[--jI].from;\n else if (types[upto - 1] == ourType)\n break run;\n else\n break;\n }\n if (recurse) {\n recurse.push(iso);\n }\n else {\n if (iso.to < iCh)\n order.push(new BidiSpan(iso.to, iCh, localLevel));\n let dirSwap = (iso.direction == LTR) != !(localLevel % 2);\n computeSectionOrder(line, dirSwap ? level + 1 : level, baseLevel, iso.inner, iso.from, iso.to, order);\n iCh = iso.from;\n }\n iScan = iso.from;\n }\n else if (iScan == from || (sameDir ? types[iScan - 1] != ourType : types[iScan - 1] == ourType)) {\n break;\n }\n else {\n iScan--;\n }\n }\n if (recurse)\n emitSpans(line, iScan, iCh, level + 1, baseLevel, recurse, order);\n else if (iScan < iCh)\n order.push(new BidiSpan(iScan, iCh, localLevel));\n iCh = iScan;\n }\n }\n}\nfunction computeSectionOrder(line, level, baseLevel, isolates, from, to, order) {\n let outerType = (level % 2 ? 2 /* T.R */ : 1 /* T.L */);\n computeCharTypes(line, from, to, isolates, outerType);\n processBracketPairs(line, from, to, isolates, outerType);\n processNeutrals(from, to, isolates, outerType);\n emitSpans(line, from, to, level, baseLevel, isolates, order);\n}\nfunction computeOrder(line, direction, isolates) {\n if (!line)\n return [new BidiSpan(0, 0, direction == RTL ? 1 : 0)];\n if (direction == LTR && !isolates.length && !BidiRE.test(line))\n return trivialOrder(line.length);\n if (isolates.length)\n while (line.length > types.length)\n types[types.length] = 256 /* T.NI */; // Make sure types array has no gaps\n let order = [], level = direction == LTR ? 0 : 1;\n computeSectionOrder(line, level, level, isolates, 0, line.length, order);\n return order;\n}\nfunction trivialOrder(length) {\n return [new BidiSpan(0, length, 0)];\n}\nlet movedOver = \"\";\nfunction moveVisually(line, order, dir, start, forward) {\n var _a;\n let startIndex = start.head - line.from, spanI = -1;\n if (startIndex == 0) {\n if (!forward || !line.length)\n return null;\n if (order[0].level != dir) {\n startIndex = order[0].side(false, dir);\n spanI = 0;\n }\n }\n else if (startIndex == line.length) {\n if (forward)\n return null;\n let last = order[order.length - 1];\n if (last.level != dir) {\n startIndex = last.side(true, dir);\n spanI = order.length - 1;\n }\n }\n if (spanI < 0)\n spanI = BidiSpan.find(order, startIndex, (_a = start.bidiLevel) !== null && _a !== void 0 ? _a : -1, start.assoc);\n let span = order[spanI];\n // End of span. (But not end of line--that was checked for above.)\n if (startIndex == span.side(forward, dir)) {\n span = order[spanI += forward ? 1 : -1];\n startIndex = span.side(!forward, dir);\n }\n let indexForward = forward == (span.dir == dir);\n let nextIndex = findClusterBreak(line.text, startIndex, indexForward);\n movedOver = line.text.slice(Math.min(startIndex, nextIndex), Math.max(startIndex, nextIndex));\n if (nextIndex != span.side(forward, dir))\n return EditorSelection.cursor(nextIndex + line.from, indexForward ? -1 : 1, span.level);\n let nextSpan = spanI == (forward ? order.length - 1 : 0) ? null : order[spanI + (forward ? 1 : -1)];\n if (!nextSpan && span.level != dir)\n return EditorSelection.cursor(forward ? line.to : line.from, forward ? -1 : 1, dir);\n if (nextSpan && nextSpan.level < span.level)\n return EditorSelection.cursor(nextSpan.side(!forward, dir) + line.from, forward ? 1 : -1, nextSpan.level);\n return EditorSelection.cursor(nextIndex + line.from, forward ? -1 : 1, span.level);\n}\n\nclass DocView extends ContentView {\n get length() { return this.view.state.doc.length; }\n constructor(view) {\n super();\n this.view = view;\n this.decorations = [];\n this.dynamicDecorationMap = [];\n this.domChanged = null;\n this.hasComposition = null;\n this.markedForComposition = new Set;\n // Track a minimum width for the editor. When measuring sizes in\n // measureVisibleLineHeights, this is updated to point at the width\n // of a given element and its extent in the document. When a change\n // happens in that range, these are reset. That way, once we've seen\n // a line/element of a given length, we keep the editor wide enough\n // to fit at least that element, until it is changed, at which point\n // we forget it again.\n this.minWidth = 0;\n this.minWidthFrom = 0;\n this.minWidthTo = 0;\n // Track whether the DOM selection was set in a lossy way, so that\n // we don't mess it up when reading it back it\n this.impreciseAnchor = null;\n this.impreciseHead = null;\n this.forceSelection = false;\n // Used by the resize observer to ignore resizes that we caused\n // ourselves\n this.lastUpdate = Date.now();\n this.setDOM(view.contentDOM);\n this.children = [new LineView];\n this.children[0].setParent(this);\n this.updateDeco();\n this.updateInner([new ChangedRange(0, 0, 0, view.state.doc.length)], 0, null);\n }\n // Update the document view to a given state.\n update(update) {\n var _a;\n let changedRanges = update.changedRanges;\n if (this.minWidth > 0 && changedRanges.length) {\n if (!changedRanges.every(({ fromA, toA }) => toA < this.minWidthFrom || fromA > this.minWidthTo)) {\n this.minWidth = this.minWidthFrom = this.minWidthTo = 0;\n }\n else {\n this.minWidthFrom = update.changes.mapPos(this.minWidthFrom, 1);\n this.minWidthTo = update.changes.mapPos(this.minWidthTo, 1);\n }\n }\n let readCompositionAt = -1;\n if (this.view.inputState.composing >= 0) {\n if ((_a = this.domChanged) === null || _a === void 0 ? void 0 : _a.newSel)\n readCompositionAt = this.domChanged.newSel.head;\n else if (!touchesComposition(update.changes, this.hasComposition) && !update.selectionSet)\n readCompositionAt = update.state.selection.main.head;\n }\n let composition = readCompositionAt > -1 ? findCompositionRange(this.view, update.changes, readCompositionAt) : null;\n this.domChanged = null;\n if (this.hasComposition) {\n this.markedForComposition.clear();\n let { from, to } = this.hasComposition;\n changedRanges = new ChangedRange(from, to, update.changes.mapPos(from, -1), update.changes.mapPos(to, 1))\n .addToSet(changedRanges.slice());\n }\n this.hasComposition = composition ? { from: composition.range.fromB, to: composition.range.toB } : null;\n // When the DOM nodes around the selection are moved to another\n // parent, Chrome sometimes reports a different selection through\n // getSelection than the one that it actually shows to the user.\n // This forces a selection update when lines are joined to work\n // around that. Issue #54\n if ((browser.ie || browser.chrome) && !composition && update &&\n update.state.doc.lines != update.startState.doc.lines)\n this.forceSelection = true;\n let prevDeco = this.decorations, deco = this.updateDeco();\n let decoDiff = findChangedDeco(prevDeco, deco, update.changes);\n changedRanges = ChangedRange.extendWithRanges(changedRanges, decoDiff);\n if (!(this.flags & 7 /* ViewFlag.Dirty */) && changedRanges.length == 0) {\n return false;\n }\n else {\n this.updateInner(changedRanges, update.startState.doc.length, composition);\n if (update.transactions.length)\n this.lastUpdate = Date.now();\n return true;\n }\n }\n // Used by update and the constructor do perform the actual DOM\n // update\n updateInner(changes, oldLength, composition) {\n this.view.viewState.mustMeasureContent = true;\n this.updateChildren(changes, oldLength, composition);\n let { observer } = this.view;\n observer.ignore(() => {\n // Lock the height during redrawing, since Chrome sometimes\n // messes with the scroll position during DOM mutation (though\n // no relayout is triggered and I cannot imagine how it can\n // recompute the scroll position without a layout)\n this.dom.style.height = this.view.viewState.contentHeight / this.view.scaleY + \"px\";\n this.dom.style.flexBasis = this.minWidth ? this.minWidth + \"px\" : \"\";\n // Chrome will sometimes, when DOM mutations occur directly\n // around the selection, get confused and report a different\n // selection from the one it displays (issue #218). This tries\n // to detect that situation.\n let track = browser.chrome || browser.ios ? { node: observer.selectionRange.focusNode, written: false } : undefined;\n this.sync(this.view, track);\n this.flags &= ~7 /* ViewFlag.Dirty */;\n if (track && (track.written || observer.selectionRange.focusNode != track.node))\n this.forceSelection = true;\n this.dom.style.height = \"\";\n });\n this.markedForComposition.forEach(cView => cView.flags &= ~8 /* ViewFlag.Composition */);\n let gaps = [];\n if (this.view.viewport.from || this.view.viewport.to < this.view.state.doc.length)\n for (let child of this.children)\n if (child instanceof BlockWidgetView && child.widget instanceof BlockGapWidget)\n gaps.push(child.dom);\n observer.updateGaps(gaps);\n }\n updateChildren(changes, oldLength, composition) {\n let ranges = composition ? composition.range.addToSet(changes.slice()) : changes;\n let cursor = this.childCursor(oldLength);\n for (let i = ranges.length - 1;; i--) {\n let next = i >= 0 ? ranges[i] : null;\n if (!next)\n break;\n let { fromA, toA, fromB, toB } = next, content, breakAtStart, openStart, openEnd;\n if (composition && composition.range.fromB < toB && composition.range.toB > fromB) {\n let before = ContentBuilder.build(this.view.state.doc, fromB, composition.range.fromB, this.decorations, this.dynamicDecorationMap);\n let after = ContentBuilder.build(this.view.state.doc, composition.range.toB, toB, this.decorations, this.dynamicDecorationMap);\n breakAtStart = before.breakAtStart;\n openStart = before.openStart;\n openEnd = after.openEnd;\n let compLine = this.compositionView(composition);\n if (after.breakAtStart) {\n compLine.breakAfter = 1;\n }\n else if (after.content.length &&\n compLine.merge(compLine.length, compLine.length, after.content[0], false, after.openStart, 0)) {\n compLine.breakAfter = after.content[0].breakAfter;\n after.content.shift();\n }\n if (before.content.length &&\n compLine.merge(0, 0, before.content[before.content.length - 1], true, 0, before.openEnd)) {\n before.content.pop();\n }\n content = before.content.concat(compLine).concat(after.content);\n }\n else {\n ({ content, breakAtStart, openStart, openEnd } =\n ContentBuilder.build(this.view.state.doc, fromB, toB, this.decorations, this.dynamicDecorationMap));\n }\n let { i: toI, off: toOff } = cursor.findPos(toA, 1);\n let { i: fromI, off: fromOff } = cursor.findPos(fromA, -1);\n replaceRange(this, fromI, fromOff, toI, toOff, content, breakAtStart, openStart, openEnd);\n }\n if (composition)\n this.fixCompositionDOM(composition);\n }\n compositionView(composition) {\n let cur = new TextView(composition.text.nodeValue);\n cur.flags |= 8 /* ViewFlag.Composition */;\n for (let { deco } of composition.marks)\n cur = new MarkView(deco, [cur], cur.length);\n let line = new LineView;\n line.append(cur, 0);\n return line;\n }\n fixCompositionDOM(composition) {\n let fix = (dom, cView) => {\n cView.flags |= 8 /* ViewFlag.Composition */ | (cView.children.some(c => c.flags & 7 /* ViewFlag.Dirty */) ? 1 /* ViewFlag.ChildDirty */ : 0);\n this.markedForComposition.add(cView);\n let prev = ContentView.get(dom);\n if (prev && prev != cView)\n prev.dom = null;\n cView.setDOM(dom);\n };\n let pos = this.childPos(composition.range.fromB, 1);\n let cView = this.children[pos.i];\n fix(composition.line, cView);\n for (let i = composition.marks.length - 1; i >= -1; i--) {\n pos = cView.childPos(pos.off, 1);\n cView = cView.children[pos.i];\n fix(i >= 0 ? composition.marks[i].node : composition.text, cView);\n }\n }\n // Sync the DOM selection to this.state.selection\n updateSelection(mustRead = false, fromPointer = false) {\n if (mustRead || !this.view.observer.selectionRange.focusNode)\n this.view.observer.readSelectionRange();\n let activeElt = this.view.root.activeElement, focused = activeElt == this.dom;\n let selectionNotFocus = !focused &&\n hasSelection(this.dom, this.view.observer.selectionRange) && !(activeElt && this.dom.contains(activeElt));\n if (!(focused || fromPointer || selectionNotFocus))\n return;\n let force = this.forceSelection;\n this.forceSelection = false;\n let main = this.view.state.selection.main;\n let anchor = this.moveToLine(this.domAtPos(main.anchor));\n let head = main.empty ? anchor : this.moveToLine(this.domAtPos(main.head));\n // Always reset on Firefox when next to an uneditable node to\n // avoid invisible cursor bugs (#111)\n if (browser.gecko && main.empty && !this.hasComposition && betweenUneditable(anchor)) {\n let dummy = document.createTextNode(\"\");\n this.view.observer.ignore(() => anchor.node.insertBefore(dummy, anchor.node.childNodes[anchor.offset] || null));\n anchor = head = new DOMPos(dummy, 0);\n force = true;\n }\n let domSel = this.view.observer.selectionRange;\n // If the selection is already here, or in an equivalent position, don't touch it\n if (force || !domSel.focusNode ||\n !isEquivalentPosition(anchor.node, anchor.offset, domSel.anchorNode, domSel.anchorOffset) ||\n !isEquivalentPosition(head.node, head.offset, domSel.focusNode, domSel.focusOffset)) {\n this.view.observer.ignore(() => {\n // Chrome Android will hide the virtual keyboard when tapping\n // inside an uneditable node, and not bring it back when we\n // move the cursor to its proper position. This tries to\n // restore the keyboard by cycling focus.\n if (browser.android && browser.chrome && this.dom.contains(domSel.focusNode) &&\n inUneditable(domSel.focusNode, this.dom)) {\n this.dom.blur();\n this.dom.focus({ preventScroll: true });\n }\n let rawSel = getSelection(this.view.root);\n if (!rawSel) ;\n else if (main.empty) {\n // Work around https://bugzilla.mozilla.org/show_bug.cgi?id=1612076\n if (browser.gecko) {\n let nextTo = nextToUneditable(anchor.node, anchor.offset);\n if (nextTo && nextTo != (1 /* NextTo.Before */ | 2 /* NextTo.After */)) {\n let text = nearbyTextNode(anchor.node, anchor.offset, nextTo == 1 /* NextTo.Before */ ? 1 : -1);\n if (text)\n anchor = new DOMPos(text.node, text.offset);\n }\n }\n rawSel.collapse(anchor.node, anchor.offset);\n if (main.bidiLevel != null && rawSel.caretBidiLevel !== undefined)\n rawSel.caretBidiLevel = main.bidiLevel;\n }\n else if (rawSel.extend) {\n // Selection.extend can be used to create an 'inverted' selection\n // (one where the focus is before the anchor), but not all\n // browsers support it yet.\n rawSel.collapse(anchor.node, anchor.offset);\n // Safari will ignore the call above when the editor is\n // hidden, and then raise an error on the call to extend\n // (#940).\n try {\n rawSel.extend(head.node, head.offset);\n }\n catch (_) { }\n }\n else {\n // Primitive (IE) way\n let range = document.createRange();\n if (main.anchor > main.head)\n [anchor, head] = [head, anchor];\n range.setEnd(head.node, head.offset);\n range.setStart(anchor.node, anchor.offset);\n rawSel.removeAllRanges();\n rawSel.addRange(range);\n }\n if (selectionNotFocus && this.view.root.activeElement == this.dom) {\n this.dom.blur();\n if (activeElt)\n activeElt.focus();\n }\n });\n this.view.observer.setSelectionRange(anchor, head);\n }\n this.impreciseAnchor = anchor.precise ? null : new DOMPos(domSel.anchorNode, domSel.anchorOffset);\n this.impreciseHead = head.precise ? null : new DOMPos(domSel.focusNode, domSel.focusOffset);\n }\n enforceCursorAssoc() {\n if (this.hasComposition)\n return;\n let { view } = this, cursor = view.state.selection.main;\n let sel = getSelection(view.root);\n let { anchorNode, anchorOffset } = view.observer.selectionRange;\n if (!sel || !cursor.empty || !cursor.assoc || !sel.modify)\n return;\n let line = LineView.find(this, cursor.head);\n if (!line)\n return;\n let lineStart = line.posAtStart;\n if (cursor.head == lineStart || cursor.head == lineStart + line.length)\n return;\n let before = this.coordsAt(cursor.head, -1), after = this.coordsAt(cursor.head, 1);\n if (!before || !after || before.bottom > after.top)\n return;\n let dom = this.domAtPos(cursor.head + cursor.assoc);\n sel.collapse(dom.node, dom.offset);\n sel.modify(\"move\", cursor.assoc < 0 ? \"forward\" : \"backward\", \"lineboundary\");\n // This can go wrong in corner cases like single-character lines,\n // so check and reset if necessary.\n view.observer.readSelectionRange();\n let newRange = view.observer.selectionRange;\n if (view.docView.posFromDOM(newRange.anchorNode, newRange.anchorOffset) != cursor.from)\n sel.collapse(anchorNode, anchorOffset);\n }\n // If a position is in/near a block widget, move it to a nearby text\n // line, since we don't want the cursor inside a block widget.\n moveToLine(pos) {\n // Block widgets will return positions before/after them, which\n // are thus directly in the document DOM element.\n let dom = this.dom, newPos;\n if (pos.node != dom)\n return pos;\n for (let i = pos.offset; !newPos && i < dom.childNodes.length; i++) {\n let view = ContentView.get(dom.childNodes[i]);\n if (view instanceof LineView)\n newPos = view.domAtPos(0);\n }\n for (let i = pos.offset - 1; !newPos && i >= 0; i--) {\n let view = ContentView.get(dom.childNodes[i]);\n if (view instanceof LineView)\n newPos = view.domAtPos(view.length);\n }\n return newPos ? new DOMPos(newPos.node, newPos.offset, true) : pos;\n }\n nearest(dom) {\n for (let cur = dom; cur;) {\n let domView = ContentView.get(cur);\n if (domView && domView.rootView == this)\n return domView;\n cur = cur.parentNode;\n }\n return null;\n }\n posFromDOM(node, offset) {\n let view = this.nearest(node);\n if (!view)\n throw new RangeError(\"Trying to find position for a DOM position outside of the document\");\n return view.localPosFromDOM(node, offset) + view.posAtStart;\n }\n domAtPos(pos) {\n let { i, off } = this.childCursor().findPos(pos, -1);\n for (; i < this.children.length - 1;) {\n let child = this.children[i];\n if (off < child.length || child instanceof LineView)\n break;\n i++;\n off = 0;\n }\n return this.children[i].domAtPos(off);\n }\n coordsAt(pos, side) {\n let best = null, bestPos = 0;\n for (let off = this.length, i = this.children.length - 1; i >= 0; i--) {\n let child = this.children[i], end = off - child.breakAfter, start = end - child.length;\n if (end < pos)\n break;\n if (start <= pos && (start < pos || child.covers(-1)) && (end > pos || child.covers(1)) &&\n (!best || child instanceof LineView && !(best instanceof LineView && side >= 0))) {\n best = child;\n bestPos = start;\n }\n off = start;\n }\n return best ? best.coordsAt(pos - bestPos, side) : null;\n }\n coordsForChar(pos) {\n let { i, off } = this.childPos(pos, 1), child = this.children[i];\n if (!(child instanceof LineView))\n return null;\n while (child.children.length) {\n let { i, off: childOff } = child.childPos(off, 1);\n for (;; i++) {\n if (i == child.children.length)\n return null;\n if ((child = child.children[i]).length)\n break;\n }\n off = childOff;\n }\n if (!(child instanceof TextView))\n return null;\n let end = findClusterBreak(child.text, off);\n if (end == off)\n return null;\n let rects = textRange(child.dom, off, end).getClientRects();\n for (let i = 0; i < rects.length; i++) {\n let rect = rects[i];\n if (i == rects.length - 1 || rect.top < rect.bottom && rect.left < rect.right)\n return rect;\n }\n return null;\n }\n measureVisibleLineHeights(viewport) {\n let result = [], { from, to } = viewport;\n let contentWidth = this.view.contentDOM.clientWidth;\n let isWider = contentWidth > Math.max(this.view.scrollDOM.clientWidth, this.minWidth) + 1;\n let widest = -1, ltr = this.view.textDirection == Direction.LTR;\n for (let pos = 0, i = 0; i < this.children.length; i++) {\n let child = this.children[i], end = pos + child.length;\n if (end > to)\n break;\n if (pos >= from) {\n let childRect = child.dom.getBoundingClientRect();\n result.push(childRect.height);\n if (isWider) {\n let last = child.dom.lastChild;\n let rects = last ? clientRectsFor(last) : [];\n if (rects.length) {\n let rect = rects[rects.length - 1];\n let width = ltr ? rect.right - childRect.left : childRect.right - rect.left;\n if (width > widest) {\n widest = width;\n this.minWidth = contentWidth;\n this.minWidthFrom = pos;\n this.minWidthTo = end;\n }\n }\n }\n }\n pos = end + child.breakAfter;\n }\n return result;\n }\n textDirectionAt(pos) {\n let { i } = this.childPos(pos, 1);\n return getComputedStyle(this.children[i].dom).direction == \"rtl\" ? Direction.RTL : Direction.LTR;\n }\n measureTextSize() {\n for (let child of this.children) {\n if (child instanceof LineView) {\n let measure = child.measureTextSize();\n if (measure)\n return measure;\n }\n }\n // If no workable line exists, force a layout of a measurable element\n let dummy = document.createElement(\"div\"), lineHeight, charWidth, textHeight;\n dummy.className = \"cm-line\";\n dummy.style.width = \"99999px\";\n dummy.style.position = \"absolute\";\n dummy.textContent = \"abc def ghi jkl mno pqr stu\";\n this.view.observer.ignore(() => {\n this.dom.appendChild(dummy);\n let rect = clientRectsFor(dummy.firstChild)[0];\n lineHeight = dummy.getBoundingClientRect().height;\n charWidth = rect ? rect.width / 27 : 7;\n textHeight = rect ? rect.height : lineHeight;\n dummy.remove();\n });\n return { lineHeight, charWidth, textHeight };\n }\n childCursor(pos = this.length) {\n // Move back to start of last element when possible, so that\n // `ChildCursor.findPos` doesn't have to deal with the edge case\n // of being after the last element.\n let i = this.children.length;\n if (i)\n pos -= this.children[--i].length;\n return new ChildCursor(this.children, pos, i);\n }\n computeBlockGapDeco() {\n let deco = [], vs = this.view.viewState;\n for (let pos = 0, i = 0;; i++) {\n let next = i == vs.viewports.length ? null : vs.viewports[i];\n let end = next ? next.from - 1 : this.length;\n if (end > pos) {\n let height = (vs.lineBlockAt(end).bottom - vs.lineBlockAt(pos).top) / this.view.scaleY;\n deco.push(Decoration.replace({\n widget: new BlockGapWidget(height),\n block: true,\n inclusive: true,\n isBlockGap: true,\n }).range(pos, end));\n }\n if (!next)\n break;\n pos = next.to + 1;\n }\n return Decoration.set(deco);\n }\n updateDeco() {\n let allDeco = this.view.state.facet(decorations).map((d, i) => {\n let dynamic = this.dynamicDecorationMap[i] = typeof d == \"function\";\n return dynamic ? d(this.view) : d;\n });\n for (let i = allDeco.length; i < allDeco.length + 3; i++)\n this.dynamicDecorationMap[i] = false;\n return this.decorations = [\n ...allDeco,\n this.computeBlockGapDeco(),\n this.view.viewState.lineGapDeco\n ];\n }\n scrollIntoView(target) {\n if (target.isSnapshot) {\n let ref = this.view.viewState.lineBlockAt(target.range.head);\n this.view.scrollDOM.scrollTop = ref.top - target.yMargin;\n this.view.scrollDOM.scrollLeft = target.xMargin;\n return;\n }\n let { range } = target;\n let rect = this.coordsAt(range.head, range.empty ? range.assoc : range.head > range.anchor ? -1 : 1), other;\n if (!rect)\n return;\n if (!range.empty && (other = this.coordsAt(range.anchor, range.anchor > range.head ? -1 : 1)))\n rect = { left: Math.min(rect.left, other.left), top: Math.min(rect.top, other.top),\n right: Math.max(rect.right, other.right), bottom: Math.max(rect.bottom, other.bottom) };\n let margins = getScrollMargins(this.view);\n let targetRect = {\n left: rect.left - margins.left, top: rect.top - margins.top,\n right: rect.right + margins.right, bottom: rect.bottom + margins.bottom\n };\n let { offsetWidth, offsetHeight } = this.view.scrollDOM;\n scrollRectIntoView(this.view.scrollDOM, targetRect, range.head < range.anchor ? -1 : 1, target.x, target.y, Math.max(Math.min(target.xMargin, offsetWidth), -offsetWidth), Math.max(Math.min(target.yMargin, offsetHeight), -offsetHeight), this.view.textDirection == Direction.LTR);\n }\n}\nfunction betweenUneditable(pos) {\n return pos.node.nodeType == 1 && pos.node.firstChild &&\n (pos.offset == 0 || pos.node.childNodes[pos.offset - 1].contentEditable == \"false\") &&\n (pos.offset == pos.node.childNodes.length || pos.node.childNodes[pos.offset].contentEditable == \"false\");\n}\nclass BlockGapWidget extends WidgetType {\n constructor(height) {\n super();\n this.height = height;\n }\n toDOM() {\n let elt = document.createElement(\"div\");\n this.updateDOM(elt);\n return elt;\n }\n eq(other) { return other.height == this.height; }\n updateDOM(elt) {\n elt.style.height = this.height + \"px\";\n return true;\n }\n get estimatedHeight() { return this.height; }\n}\nfunction findCompositionNode(view, headPos) {\n let sel = view.observer.selectionRange;\n let textNode = sel.focusNode && nearbyTextNode(sel.focusNode, sel.focusOffset, 0);\n if (!textNode)\n return null;\n let from = headPos - textNode.offset;\n return { from, to: from + textNode.node.nodeValue.length, node: textNode.node };\n}\nfunction findCompositionRange(view, changes, headPos) {\n let found = findCompositionNode(view, headPos);\n if (!found)\n return null;\n let { node: textNode, from, to } = found, text = textNode.nodeValue;\n // Don't try to preserve multi-line compositions\n if (/[\\n\\r]/.test(text))\n return null;\n if (view.state.doc.sliceString(found.from, found.to) != text)\n return null;\n let inv = changes.invertedDesc;\n let range = new ChangedRange(inv.mapPos(from), inv.mapPos(to), from, to);\n let marks = [];\n for (let parent = textNode.parentNode;; parent = parent.parentNode) {\n let parentView = ContentView.get(parent);\n if (parentView instanceof MarkView)\n marks.push({ node: parent, deco: parentView.mark });\n else if (parentView instanceof LineView || parent.nodeName == \"DIV\" && parent.parentNode == view.contentDOM)\n return { range, text: textNode, marks, line: parent };\n else if (parent != view.contentDOM)\n marks.push({ node: parent, deco: new MarkDecoration({\n inclusive: true,\n attributes: getAttrs(parent),\n tagName: parent.tagName.toLowerCase()\n }) });\n else\n return null;\n }\n}\nfunction nearbyTextNode(startNode, startOffset, side) {\n if (side <= 0)\n for (let node = startNode, offset = startOffset;;) {\n if (node.nodeType == 3)\n return { node: node, offset: offset };\n if (node.nodeType == 1 && offset > 0) {\n node = node.childNodes[offset - 1];\n offset = maxOffset(node);\n }\n else {\n break;\n }\n }\n if (side >= 0)\n for (let node = startNode, offset = startOffset;;) {\n if (node.nodeType == 3)\n return { node: node, offset: offset };\n if (node.nodeType == 1 && offset < node.childNodes.length && side >= 0) {\n node = node.childNodes[offset];\n offset = 0;\n }\n else {\n break;\n }\n }\n return null;\n}\nfunction nextToUneditable(node, offset) {\n if (node.nodeType != 1)\n return 0;\n return (offset && node.childNodes[offset - 1].contentEditable == \"false\" ? 1 /* NextTo.Before */ : 0) |\n (offset < node.childNodes.length && node.childNodes[offset].contentEditable == \"false\" ? 2 /* NextTo.After */ : 0);\n}\nlet DecorationComparator$1 = class DecorationComparator {\n constructor() {\n this.changes = [];\n }\n compareRange(from, to) { addRange(from, to, this.changes); }\n comparePoint(from, to) { addRange(from, to, this.changes); }\n};\nfunction findChangedDeco(a, b, diff) {\n let comp = new DecorationComparator$1;\n RangeSet.compare(a, b, diff, comp);\n return comp.changes;\n}\nfunction inUneditable(node, inside) {\n for (let cur = node; cur && cur != inside; cur = cur.assignedSlot || cur.parentNode) {\n if (cur.nodeType == 1 && cur.contentEditable == 'false') {\n return true;\n }\n }\n return false;\n}\nfunction touchesComposition(changes, composition) {\n let touched = false;\n if (composition)\n changes.iterChangedRanges((from, to) => {\n if (from < composition.to && to > composition.from)\n touched = true;\n });\n return touched;\n}\n\nfunction groupAt(state, pos, bias = 1) {\n let categorize = state.charCategorizer(pos);\n let line = state.doc.lineAt(pos), linePos = pos - line.from;\n if (line.length == 0)\n return EditorSelection.cursor(pos);\n if (linePos == 0)\n bias = 1;\n else if (linePos == line.length)\n bias = -1;\n let from = linePos, to = linePos;\n if (bias < 0)\n from = findClusterBreak(line.text, linePos, false);\n else\n to = findClusterBreak(line.text, linePos);\n let cat = categorize(line.text.slice(from, to));\n while (from > 0) {\n let prev = findClusterBreak(line.text, from, false);\n if (categorize(line.text.slice(prev, from)) != cat)\n break;\n from = prev;\n }\n while (to < line.length) {\n let next = findClusterBreak(line.text, to);\n if (categorize(line.text.slice(to, next)) != cat)\n break;\n to = next;\n }\n return EditorSelection.range(from + line.from, to + line.from);\n}\n// Search the DOM for the {node, offset} position closest to the given\n// coordinates. Very inefficient and crude, but can usually be avoided\n// by calling caret(Position|Range)FromPoint instead.\nfunction getdx(x, rect) {\n return rect.left > x ? rect.left - x : Math.max(0, x - rect.right);\n}\nfunction getdy(y, rect) {\n return rect.top > y ? rect.top - y : Math.max(0, y - rect.bottom);\n}\nfunction yOverlap(a, b) {\n return a.top < b.bottom - 1 && a.bottom > b.top + 1;\n}\nfunction upTop(rect, top) {\n return top < rect.top ? { top, left: rect.left, right: rect.right, bottom: rect.bottom } : rect;\n}\nfunction upBot(rect, bottom) {\n return bottom > rect.bottom ? { top: rect.top, left: rect.left, right: rect.right, bottom } : rect;\n}\nfunction domPosAtCoords(parent, x, y) {\n let closest, closestRect, closestX, closestY, closestOverlap = false;\n let above, below, aboveRect, belowRect;\n for (let child = parent.firstChild; child; child = child.nextSibling) {\n let rects = clientRectsFor(child);\n for (let i = 0; i < rects.length; i++) {\n let rect = rects[i];\n if (closestRect && yOverlap(closestRect, rect))\n rect = upTop(upBot(rect, closestRect.bottom), closestRect.top);\n let dx = getdx(x, rect), dy = getdy(y, rect);\n if (dx == 0 && dy == 0)\n return child.nodeType == 3 ? domPosInText(child, x, y) : domPosAtCoords(child, x, y);\n if (!closest || closestY > dy || closestY == dy && closestX > dx) {\n closest = child;\n closestRect = rect;\n closestX = dx;\n closestY = dy;\n let side = dy ? (y < rect.top ? -1 : 1) : dx ? (x < rect.left ? -1 : 1) : 0;\n closestOverlap = !side || (side > 0 ? i < rects.length - 1 : i > 0);\n }\n if (dx == 0) {\n if (y > rect.bottom && (!aboveRect || aboveRect.bottom < rect.bottom)) {\n above = child;\n aboveRect = rect;\n }\n else if (y < rect.top && (!belowRect || belowRect.top > rect.top)) {\n below = child;\n belowRect = rect;\n }\n }\n else if (aboveRect && yOverlap(aboveRect, rect)) {\n aboveRect = upBot(aboveRect, rect.bottom);\n }\n else if (belowRect && yOverlap(belowRect, rect)) {\n belowRect = upTop(belowRect, rect.top);\n }\n }\n }\n if (aboveRect && aboveRect.bottom >= y) {\n closest = above;\n closestRect = aboveRect;\n }\n else if (belowRect && belowRect.top <= y) {\n closest = below;\n closestRect = belowRect;\n }\n if (!closest)\n return { node: parent, offset: 0 };\n let clipX = Math.max(closestRect.left, Math.min(closestRect.right, x));\n if (closest.nodeType == 3)\n return domPosInText(closest, clipX, y);\n if (closestOverlap && closest.contentEditable != \"false\")\n return domPosAtCoords(closest, clipX, y);\n let offset = Array.prototype.indexOf.call(parent.childNodes, closest) +\n (x >= (closestRect.left + closestRect.right) / 2 ? 1 : 0);\n return { node: parent, offset };\n}\nfunction domPosInText(node, x, y) {\n let len = node.nodeValue.length;\n let closestOffset = -1, closestDY = 1e9, generalSide = 0;\n for (let i = 0; i < len; i++) {\n let rects = textRange(node, i, i + 1).getClientRects();\n for (let j = 0; j < rects.length; j++) {\n let rect = rects[j];\n if (rect.top == rect.bottom)\n continue;\n if (!generalSide)\n generalSide = x - rect.left;\n let dy = (rect.top > y ? rect.top - y : y - rect.bottom) - 1;\n if (rect.left - 1 <= x && rect.right + 1 >= x && dy < closestDY) {\n let right = x >= (rect.left + rect.right) / 2, after = right;\n if (browser.chrome || browser.gecko) {\n // Check for RTL on browsers that support getting client\n // rects for empty ranges.\n let rectBefore = textRange(node, i).getBoundingClientRect();\n if (rectBefore.left == rect.right)\n after = !right;\n }\n if (dy <= 0)\n return { node, offset: i + (after ? 1 : 0) };\n closestOffset = i + (after ? 1 : 0);\n closestDY = dy;\n }\n }\n }\n return { node, offset: closestOffset > -1 ? closestOffset : generalSide > 0 ? node.nodeValue.length : 0 };\n}\nfunction posAtCoords(view, coords, precise, bias = -1) {\n var _a, _b;\n let content = view.contentDOM.getBoundingClientRect(), docTop = content.top + view.viewState.paddingTop;\n let block, { docHeight } = view.viewState;\n let { x, y } = coords, yOffset = y - docTop;\n if (yOffset < 0)\n return 0;\n if (yOffset > docHeight)\n return view.state.doc.length;\n // Scan for a text block near the queried y position\n for (let halfLine = view.viewState.heightOracle.textHeight / 2, bounced = false;;) {\n block = view.elementAtHeight(yOffset);\n if (block.type == BlockType.Text)\n break;\n for (;;) {\n // Move the y position out of this block\n yOffset = bias > 0 ? block.bottom + halfLine : block.top - halfLine;\n if (yOffset >= 0 && yOffset <= docHeight)\n break;\n // If the document consists entirely of replaced widgets, we\n // won't find a text block, so return 0\n if (bounced)\n return precise ? null : 0;\n bounced = true;\n bias = -bias;\n }\n }\n y = docTop + yOffset;\n let lineStart = block.from;\n // If this is outside of the rendered viewport, we can't determine a position\n if (lineStart < view.viewport.from)\n return view.viewport.from == 0 ? 0 : precise ? null : posAtCoordsImprecise(view, content, block, x, y);\n if (lineStart > view.viewport.to)\n return view.viewport.to == view.state.doc.length ? view.state.doc.length :\n precise ? null : posAtCoordsImprecise(view, content, block, x, y);\n // Prefer ShadowRootOrDocument.elementFromPoint if present, fall back to document if not\n let doc = view.dom.ownerDocument;\n let root = view.root.elementFromPoint ? view.root : doc;\n let element = root.elementFromPoint(x, y);\n if (element && !view.contentDOM.contains(element))\n element = null;\n // If the element is unexpected, clip x at the sides of the content area and try again\n if (!element) {\n x = Math.max(content.left + 1, Math.min(content.right - 1, x));\n element = root.elementFromPoint(x, y);\n if (element && !view.contentDOM.contains(element))\n element = null;\n }\n // There's visible editor content under the point, so we can try\n // using caret(Position|Range)FromPoint as a shortcut\n let node, offset = -1;\n if (element && ((_a = view.docView.nearest(element)) === null || _a === void 0 ? void 0 : _a.isEditable) != false) {\n if (doc.caretPositionFromPoint) {\n let pos = doc.caretPositionFromPoint(x, y);\n if (pos)\n ({ offsetNode: node, offset } = pos);\n }\n else if (doc.caretRangeFromPoint) {\n let range = doc.caretRangeFromPoint(x, y);\n if (range) {\n ({ startContainer: node, startOffset: offset } = range);\n if (!view.contentDOM.contains(node) ||\n browser.safari && isSuspiciousSafariCaretResult(node, offset, x) ||\n browser.chrome && isSuspiciousChromeCaretResult(node, offset, x))\n node = undefined;\n }\n }\n }\n // No luck, do our own (potentially expensive) search\n if (!node || !view.docView.dom.contains(node)) {\n let line = LineView.find(view.docView, lineStart);\n if (!line)\n return yOffset > block.top + block.height / 2 ? block.to : block.from;\n ({ node, offset } = domPosAtCoords(line.dom, x, y));\n }\n let nearest = view.docView.nearest(node);\n if (!nearest)\n return null;\n if (nearest.isWidget && ((_b = nearest.dom) === null || _b === void 0 ? void 0 : _b.nodeType) == 1) {\n let rect = nearest.dom.getBoundingClientRect();\n return coords.y < rect.top || coords.y <= rect.bottom && coords.x <= (rect.left + rect.right) / 2\n ? nearest.posAtStart : nearest.posAtEnd;\n }\n else {\n return nearest.localPosFromDOM(node, offset) + nearest.posAtStart;\n }\n}\nfunction posAtCoordsImprecise(view, contentRect, block, x, y) {\n let into = Math.round((x - contentRect.left) * view.defaultCharacterWidth);\n if (view.lineWrapping && block.height > view.defaultLineHeight * 1.5) {\n let textHeight = view.viewState.heightOracle.textHeight;\n let line = Math.floor((y - block.top - (view.defaultLineHeight - textHeight) * 0.5) / textHeight);\n into += line * view.viewState.heightOracle.lineLength;\n }\n let content = view.state.sliceDoc(block.from, block.to);\n return block.from + findColumn(content, into, view.state.tabSize);\n}\n// In case of a high line height, Safari's caretRangeFromPoint treats\n// the space between lines as belonging to the last character of the\n// line before. This is used to detect such a result so that it can be\n// ignored (issue #401).\nfunction isSuspiciousSafariCaretResult(node, offset, x) {\n let len;\n if (node.nodeType != 3 || offset != (len = node.nodeValue.length))\n return false;\n for (let next = node.nextSibling; next; next = next.nextSibling)\n if (next.nodeType != 1 || next.nodeName != \"BR\")\n return false;\n return textRange(node, len - 1, len).getBoundingClientRect().left > x;\n}\n// Chrome will move positions between lines to the start of the next line\nfunction isSuspiciousChromeCaretResult(node, offset, x) {\n if (offset != 0)\n return false;\n for (let cur = node;;) {\n let parent = cur.parentNode;\n if (!parent || parent.nodeType != 1 || parent.firstChild != cur)\n return false;\n if (parent.classList.contains(\"cm-line\"))\n break;\n cur = parent;\n }\n let rect = node.nodeType == 1 ? node.getBoundingClientRect()\n : textRange(node, 0, Math.max(node.nodeValue.length, 1)).getBoundingClientRect();\n return x - rect.left > 5;\n}\nfunction blockAt(view, pos) {\n let line = view.lineBlockAt(pos);\n if (Array.isArray(line.type))\n for (let l of line.type) {\n if (l.to > pos || l.to == pos && (l.to == line.to || l.type == BlockType.Text))\n return l;\n }\n return line;\n}\nfunction moveToLineBoundary(view, start, forward, includeWrap) {\n let line = blockAt(view, start.head);\n let coords = !includeWrap || line.type != BlockType.Text || !(view.lineWrapping || line.widgetLineBreaks) ? null\n : view.coordsAtPos(start.assoc < 0 && start.head > line.from ? start.head - 1 : start.head);\n if (coords) {\n let editorRect = view.dom.getBoundingClientRect();\n let direction = view.textDirectionAt(line.from);\n let pos = view.posAtCoords({ x: forward == (direction == Direction.LTR) ? editorRect.right - 1 : editorRect.left + 1,\n y: (coords.top + coords.bottom) / 2 });\n if (pos != null)\n return EditorSelection.cursor(pos, forward ? -1 : 1);\n }\n return EditorSelection.cursor(forward ? line.to : line.from, forward ? -1 : 1);\n}\nfunction moveByChar(view, start, forward, by) {\n let line = view.state.doc.lineAt(start.head), spans = view.bidiSpans(line);\n let direction = view.textDirectionAt(line.from);\n for (let cur = start, check = null;;) {\n let next = moveVisually(line, spans, direction, cur, forward), char = movedOver;\n if (!next) {\n if (line.number == (forward ? view.state.doc.lines : 1))\n return cur;\n char = \"\\n\";\n line = view.state.doc.line(line.number + (forward ? 1 : -1));\n spans = view.bidiSpans(line);\n next = EditorSelection.cursor(forward ? line.from : line.to);\n }\n if (!check) {\n if (!by)\n return next;\n check = by(char);\n }\n else if (!check(char)) {\n return cur;\n }\n cur = next;\n }\n}\nfunction byGroup(view, pos, start) {\n let categorize = view.state.charCategorizer(pos);\n let cat = categorize(start);\n return (next) => {\n let nextCat = categorize(next);\n if (cat == CharCategory.Space)\n cat = nextCat;\n return cat == nextCat;\n };\n}\nfunction moveVertically(view, start, forward, distance) {\n let startPos = start.head, dir = forward ? 1 : -1;\n if (startPos == (forward ? view.state.doc.length : 0))\n return EditorSelection.cursor(startPos, start.assoc);\n let goal = start.goalColumn, startY;\n let rect = view.contentDOM.getBoundingClientRect();\n let startCoords = view.coordsAtPos(startPos, start.assoc || -1), docTop = view.documentTop;\n if (startCoords) {\n if (goal == null)\n goal = startCoords.left - rect.left;\n startY = dir < 0 ? startCoords.top : startCoords.bottom;\n }\n else {\n let line = view.viewState.lineBlockAt(startPos);\n if (goal == null)\n goal = Math.min(rect.right - rect.left, view.defaultCharacterWidth * (startPos - line.from));\n startY = (dir < 0 ? line.top : line.bottom) + docTop;\n }\n let resolvedGoal = rect.left + goal;\n let dist = distance !== null && distance !== void 0 ? distance : (view.viewState.heightOracle.textHeight >> 1);\n for (let extra = 0;; extra += 10) {\n let curY = startY + (dist + extra) * dir;\n let pos = posAtCoords(view, { x: resolvedGoal, y: curY }, false, dir);\n if (curY < rect.top || curY > rect.bottom || (dir < 0 ? pos < startPos : pos > startPos)) {\n let charRect = view.docView.coordsForChar(pos);\n let assoc = !charRect || curY < charRect.top ? -1 : 1;\n return EditorSelection.cursor(pos, assoc, undefined, goal);\n }\n }\n}\nfunction skipAtomicRanges(atoms, pos, bias) {\n for (;;) {\n let moved = 0;\n for (let set of atoms) {\n set.between(pos - 1, pos + 1, (from, to, value) => {\n if (pos > from && pos < to) {\n let side = moved || bias || (pos - from < to - pos ? -1 : 1);\n pos = side < 0 ? from : to;\n moved = side;\n }\n });\n }\n if (!moved)\n return pos;\n }\n}\nfunction skipAtoms(view, oldPos, pos) {\n let newPos = skipAtomicRanges(view.state.facet(atomicRanges).map(f => f(view)), pos.from, oldPos.head > pos.from ? -1 : 1);\n return newPos == pos.from ? pos : EditorSelection.cursor(newPos, newPos < pos.from ? 1 : -1);\n}\n\n// This will also be where dragging info and such goes\nclass InputState {\n setSelectionOrigin(origin) {\n this.lastSelectionOrigin = origin;\n this.lastSelectionTime = Date.now();\n }\n constructor(view) {\n this.view = view;\n this.lastKeyCode = 0;\n this.lastKeyTime = 0;\n this.lastTouchTime = 0;\n this.lastFocusTime = 0;\n this.lastScrollTop = 0;\n this.lastScrollLeft = 0;\n // On iOS, some keys need to have their default behavior happen\n // (after which we retroactively handle them and reset the DOM) to\n // avoid messing up the virtual keyboard state.\n this.pendingIOSKey = undefined;\n this.lastSelectionOrigin = null;\n this.lastSelectionTime = 0;\n this.lastEscPress = 0;\n this.lastContextMenu = 0;\n this.scrollHandlers = [];\n this.handlers = Object.create(null);\n // -1 means not in a composition. Otherwise, this counts the number\n // of changes made during the composition. The count is used to\n // avoid treating the start state of the composition, before any\n // changes have been made, as part of the composition.\n this.composing = -1;\n // Tracks whether the next change should be marked as starting the\n // composition (null means no composition, true means next is the\n // first, false means first has already been marked for this\n // composition)\n this.compositionFirstChange = null;\n // End time of the previous composition\n this.compositionEndedAt = 0;\n // Used in a kludge to detect when an Enter keypress should be\n // considered part of the composition on Safari, which fires events\n // in the wrong order\n this.compositionPendingKey = false;\n // Used to categorize changes as part of a composition, even when\n // the mutation events fire shortly after the compositionend event\n this.compositionPendingChange = false;\n this.mouseSelection = null;\n // When a drag from the editor is active, this points at the range\n // being dragged.\n this.draggedContent = null;\n this.handleEvent = this.handleEvent.bind(this);\n this.notifiedFocused = view.hasFocus;\n // On Safari adding an input event handler somehow prevents an\n // issue where the composition vanishes when you press enter.\n if (browser.safari)\n view.contentDOM.addEventListener(\"input\", () => null);\n if (browser.gecko)\n firefoxCopyCutHack(view.contentDOM.ownerDocument);\n }\n handleEvent(event) {\n if (!eventBelongsToEditor(this.view, event) || this.ignoreDuringComposition(event))\n return;\n if (event.type == \"keydown\" && this.keydown(event))\n return;\n this.runHandlers(event.type, event);\n }\n runHandlers(type, event) {\n let handlers = this.handlers[type];\n if (handlers) {\n for (let observer of handlers.observers)\n observer(this.view, event);\n for (let handler of handlers.handlers) {\n if (event.defaultPrevented)\n break;\n if (handler(this.view, event)) {\n event.preventDefault();\n break;\n }\n }\n }\n }\n ensureHandlers(plugins) {\n let handlers = computeHandlers(plugins), prev = this.handlers, dom = this.view.contentDOM;\n for (let type in handlers)\n if (type != \"scroll\") {\n let passive = !handlers[type].handlers.length;\n let exists = prev[type];\n if (exists && passive != !exists.handlers.length) {\n dom.removeEventListener(type, this.handleEvent);\n exists = null;\n }\n if (!exists)\n dom.addEventListener(type, this.handleEvent, { passive });\n }\n for (let type in prev)\n if (type != \"scroll\" && !handlers[type])\n dom.removeEventListener(type, this.handleEvent);\n this.handlers = handlers;\n }\n keydown(event) {\n // Must always run, even if a custom handler handled the event\n this.lastKeyCode = event.keyCode;\n this.lastKeyTime = Date.now();\n if (event.keyCode == 9 && Date.now() < this.lastEscPress + 2000)\n return true;\n if (event.keyCode != 27 && modifierCodes.indexOf(event.keyCode) < 0)\n this.view.inputState.lastEscPress = 0;\n // Chrome for Android usually doesn't fire proper key events, but\n // occasionally does, usually surrounded by a bunch of complicated\n // composition changes. When an enter or backspace key event is\n // seen, hold off on handling DOM events for a bit, and then\n // dispatch it.\n if (browser.android && browser.chrome && !event.synthetic &&\n (event.keyCode == 13 || event.keyCode == 8)) {\n this.view.observer.delayAndroidKey(event.key, event.keyCode);\n return true;\n }\n // Preventing the default behavior of Enter on iOS makes the\n // virtual keyboard get stuck in the wrong (lowercase)\n // state. So we let it go through, and then, in\n // applyDOMChange, notify key handlers of it and reset to\n // the state they produce.\n let pending;\n if (browser.ios && !event.synthetic && !event.altKey && !event.metaKey &&\n ((pending = PendingKeys.find(key => key.keyCode == event.keyCode)) && !event.ctrlKey ||\n EmacsyPendingKeys.indexOf(event.key) > -1 && event.ctrlKey && !event.shiftKey)) {\n this.pendingIOSKey = pending || event;\n setTimeout(() => this.flushIOSKey(), 250);\n return true;\n }\n if (event.keyCode != 229)\n this.view.observer.forceFlush();\n return false;\n }\n flushIOSKey() {\n let key = this.pendingIOSKey;\n if (!key)\n return false;\n this.pendingIOSKey = undefined;\n return dispatchKey(this.view.contentDOM, key.key, key.keyCode);\n }\n ignoreDuringComposition(event) {\n if (!/^key/.test(event.type))\n return false;\n if (this.composing > 0)\n return true;\n // See https://www.stum.de/2016/06/24/handling-ime-events-in-javascript/.\n // On some input method editors (IMEs), the Enter key is used to\n // confirm character selection. On Safari, when Enter is pressed,\n // compositionend and keydown events are sometimes emitted in the\n // wrong order. The key event should still be ignored, even when\n // it happens after the compositionend event.\n if (browser.safari && !browser.ios && this.compositionPendingKey && Date.now() - this.compositionEndedAt < 100) {\n this.compositionPendingKey = false;\n return true;\n }\n return false;\n }\n startMouseSelection(mouseSelection) {\n if (this.mouseSelection)\n this.mouseSelection.destroy();\n this.mouseSelection = mouseSelection;\n }\n update(update) {\n if (this.mouseSelection)\n this.mouseSelection.update(update);\n if (this.draggedContent && update.docChanged)\n this.draggedContent = this.draggedContent.map(update.changes);\n if (update.transactions.length)\n this.lastKeyCode = this.lastSelectionTime = 0;\n }\n destroy() {\n if (this.mouseSelection)\n this.mouseSelection.destroy();\n }\n}\nfunction bindHandler(plugin, handler) {\n return (view, event) => {\n try {\n return handler.call(plugin, event, view);\n }\n catch (e) {\n logException(view.state, e);\n }\n };\n}\nfunction computeHandlers(plugins) {\n let result = Object.create(null);\n function record(type) {\n return result[type] || (result[type] = { observers: [], handlers: [] });\n }\n for (let plugin of plugins) {\n let spec = plugin.spec;\n if (spec && spec.domEventHandlers)\n for (let type in spec.domEventHandlers) {\n let f = spec.domEventHandlers[type];\n if (f)\n record(type).handlers.push(bindHandler(plugin.value, f));\n }\n if (spec && spec.domEventObservers)\n for (let type in spec.domEventObservers) {\n let f = spec.domEventObservers[type];\n if (f)\n record(type).observers.push(bindHandler(plugin.value, f));\n }\n }\n for (let type in handlers)\n record(type).handlers.push(handlers[type]);\n for (let type in observers)\n record(type).observers.push(observers[type]);\n return result;\n}\nconst PendingKeys = [\n { key: \"Backspace\", keyCode: 8, inputType: \"deleteContentBackward\" },\n { key: \"Enter\", keyCode: 13, inputType: \"insertParagraph\" },\n { key: \"Enter\", keyCode: 13, inputType: \"insertLineBreak\" },\n { key: \"Delete\", keyCode: 46, inputType: \"deleteContentForward\" }\n];\nconst EmacsyPendingKeys = \"dthko\";\n// Key codes for modifier keys\nconst modifierCodes = [16, 17, 18, 20, 91, 92, 224, 225];\nconst dragScrollMargin = 6;\nfunction dragScrollSpeed(dist) {\n return Math.max(0, dist) * 0.7 + 8;\n}\nfunction dist(a, b) {\n return Math.max(Math.abs(a.clientX - b.clientX), Math.abs(a.clientY - b.clientY));\n}\nclass MouseSelection {\n constructor(view, startEvent, style, mustSelect) {\n this.view = view;\n this.startEvent = startEvent;\n this.style = style;\n this.mustSelect = mustSelect;\n this.scrollSpeed = { x: 0, y: 0 };\n this.scrolling = -1;\n this.lastEvent = startEvent;\n this.scrollParent = scrollableParent(view.contentDOM);\n this.atoms = view.state.facet(atomicRanges).map(f => f(view));\n let doc = view.contentDOM.ownerDocument;\n doc.addEventListener(\"mousemove\", this.move = this.move.bind(this));\n doc.addEventListener(\"mouseup\", this.up = this.up.bind(this));\n this.extend = startEvent.shiftKey;\n this.multiple = view.state.facet(EditorState.allowMultipleSelections) && addsSelectionRange(view, startEvent);\n this.dragging = isInPrimarySelection(view, startEvent) && getClickType(startEvent) == 1 ? null : false;\n }\n start(event) {\n // When clicking outside of the selection, immediately apply the\n // effect of starting the selection\n if (this.dragging === false)\n this.select(event);\n }\n move(event) {\n var _a;\n if (event.buttons == 0)\n return this.destroy();\n if (this.dragging || this.dragging == null && dist(this.startEvent, event) < 10)\n return;\n this.select(this.lastEvent = event);\n let sx = 0, sy = 0;\n let rect = ((_a = this.scrollParent) === null || _a === void 0 ? void 0 : _a.getBoundingClientRect())\n || { left: 0, top: 0, right: this.view.win.innerWidth, bottom: this.view.win.innerHeight };\n let margins = getScrollMargins(this.view);\n if (event.clientX - margins.left <= rect.left + dragScrollMargin)\n sx = -dragScrollSpeed(rect.left - event.clientX);\n else if (event.clientX + margins.right >= rect.right - dragScrollMargin)\n sx = dragScrollSpeed(event.clientX - rect.right);\n if (event.clientY - margins.top <= rect.top + dragScrollMargin)\n sy = -dragScrollSpeed(rect.top - event.clientY);\n else if (event.clientY + margins.bottom >= rect.bottom - dragScrollMargin)\n sy = dragScrollSpeed(event.clientY - rect.bottom);\n this.setScrollSpeed(sx, sy);\n }\n up(event) {\n if (this.dragging == null)\n this.select(this.lastEvent);\n if (!this.dragging)\n event.preventDefault();\n this.destroy();\n }\n destroy() {\n this.setScrollSpeed(0, 0);\n let doc = this.view.contentDOM.ownerDocument;\n doc.removeEventListener(\"mousemove\", this.move);\n doc.removeEventListener(\"mouseup\", this.up);\n this.view.inputState.mouseSelection = this.view.inputState.draggedContent = null;\n }\n setScrollSpeed(sx, sy) {\n this.scrollSpeed = { x: sx, y: sy };\n if (sx || sy) {\n if (this.scrolling < 0)\n this.scrolling = setInterval(() => this.scroll(), 50);\n }\n else if (this.scrolling > -1) {\n clearInterval(this.scrolling);\n this.scrolling = -1;\n }\n }\n scroll() {\n if (this.scrollParent) {\n this.scrollParent.scrollLeft += this.scrollSpeed.x;\n this.scrollParent.scrollTop += this.scrollSpeed.y;\n }\n else {\n this.view.win.scrollBy(this.scrollSpeed.x, this.scrollSpeed.y);\n }\n if (this.dragging === false)\n this.select(this.lastEvent);\n }\n skipAtoms(sel) {\n let ranges = null;\n for (let i = 0; i < sel.ranges.length; i++) {\n let range = sel.ranges[i], updated = null;\n if (range.empty) {\n let pos = skipAtomicRanges(this.atoms, range.from, 0);\n if (pos != range.from)\n updated = EditorSelection.cursor(pos, -1);\n }\n else {\n let from = skipAtomicRanges(this.atoms, range.from, -1);\n let to = skipAtomicRanges(this.atoms, range.to, 1);\n if (from != range.from || to != range.to)\n updated = EditorSelection.range(range.from == range.anchor ? from : to, range.from == range.head ? from : to);\n }\n if (updated) {\n if (!ranges)\n ranges = sel.ranges.slice();\n ranges[i] = updated;\n }\n }\n return ranges ? EditorSelection.create(ranges, sel.mainIndex) : sel;\n }\n select(event) {\n let { view } = this, selection = this.skipAtoms(this.style.get(event, this.extend, this.multiple));\n if (this.mustSelect || !selection.eq(view.state.selection) ||\n selection.main.assoc != view.state.selection.main.assoc && this.dragging === false)\n this.view.dispatch({\n selection,\n userEvent: \"select.pointer\"\n });\n this.mustSelect = false;\n }\n update(update) {\n if (this.style.update(update))\n setTimeout(() => this.select(this.lastEvent), 20);\n }\n}\nfunction addsSelectionRange(view, event) {\n let facet = view.state.facet(clickAddsSelectionRange);\n return facet.length ? facet[0](event) : browser.mac ? event.metaKey : event.ctrlKey;\n}\nfunction dragMovesSelection(view, event) {\n let facet = view.state.facet(dragMovesSelection$1);\n return facet.length ? facet[0](event) : browser.mac ? !event.altKey : !event.ctrlKey;\n}\nfunction isInPrimarySelection(view, event) {\n let { main } = view.state.selection;\n if (main.empty)\n return false;\n // On boundary clicks, check whether the coordinates are inside the\n // selection's client rectangles\n let sel = getSelection(view.root);\n if (!sel || sel.rangeCount == 0)\n return true;\n let rects = sel.getRangeAt(0).getClientRects();\n for (let i = 0; i < rects.length; i++) {\n let rect = rects[i];\n if (rect.left <= event.clientX && rect.right >= event.clientX &&\n rect.top <= event.clientY && rect.bottom >= event.clientY)\n return true;\n }\n return false;\n}\nfunction eventBelongsToEditor(view, event) {\n if (!event.bubbles)\n return true;\n if (event.defaultPrevented)\n return false;\n for (let node = event.target, cView; node != view.contentDOM; node = node.parentNode)\n if (!node || node.nodeType == 11 || ((cView = ContentView.get(node)) && cView.ignoreEvent(event)))\n return false;\n return true;\n}\nconst handlers = /*@__PURE__*/Object.create(null);\nconst observers = /*@__PURE__*/Object.create(null);\n// This is very crude, but unfortunately both these browsers _pretend_\n// that they have a clipboard API—all the objects and methods are\n// there, they just don't work, and they are hard to test.\nconst brokenClipboardAPI = (browser.ie && browser.ie_version < 15) ||\n (browser.ios && browser.webkit_version < 604);\nfunction capturePaste(view) {\n let parent = view.dom.parentNode;\n if (!parent)\n return;\n let target = parent.appendChild(document.createElement(\"textarea\"));\n target.style.cssText = \"position: fixed; left: -10000px; top: 10px\";\n target.focus();\n setTimeout(() => {\n view.focus();\n target.remove();\n doPaste(view, target.value);\n }, 50);\n}\nfunction doPaste(view, input) {\n let { state } = view, changes, i = 1, text = state.toText(input);\n let byLine = text.lines == state.selection.ranges.length;\n let linewise = lastLinewiseCopy != null && state.selection.ranges.every(r => r.empty) && lastLinewiseCopy == text.toString();\n if (linewise) {\n let lastLine = -1;\n changes = state.changeByRange(range => {\n let line = state.doc.lineAt(range.from);\n if (line.from == lastLine)\n return { range };\n lastLine = line.from;\n let insert = state.toText((byLine ? text.line(i++).text : input) + state.lineBreak);\n return { changes: { from: line.from, insert },\n range: EditorSelection.cursor(range.from + insert.length) };\n });\n }\n else if (byLine) {\n changes = state.changeByRange(range => {\n let line = text.line(i++);\n return { changes: { from: range.from, to: range.to, insert: line.text },\n range: EditorSelection.cursor(range.from + line.length) };\n });\n }\n else {\n changes = state.replaceSelection(text);\n }\n view.dispatch(changes, {\n userEvent: \"input.paste\",\n scrollIntoView: true\n });\n}\nobservers.scroll = view => {\n view.inputState.lastScrollTop = view.scrollDOM.scrollTop;\n view.inputState.lastScrollLeft = view.scrollDOM.scrollLeft;\n};\nhandlers.keydown = (view, event) => {\n view.inputState.setSelectionOrigin(\"select\");\n if (event.keyCode == 27)\n view.inputState.lastEscPress = Date.now();\n return false;\n};\nobservers.touchstart = (view, e) => {\n view.inputState.lastTouchTime = Date.now();\n view.inputState.setSelectionOrigin(\"select.pointer\");\n};\nobservers.touchmove = view => {\n view.inputState.setSelectionOrigin(\"select.pointer\");\n};\nhandlers.mousedown = (view, event) => {\n view.observer.flush();\n if (view.inputState.lastTouchTime > Date.now() - 2000)\n return false; // Ignore touch interaction\n let style = null;\n for (let makeStyle of view.state.facet(mouseSelectionStyle)) {\n style = makeStyle(view, event);\n if (style)\n break;\n }\n if (!style && event.button == 0)\n style = basicMouseSelection(view, event);\n if (style) {\n let mustFocus = !view.hasFocus;\n view.inputState.startMouseSelection(new MouseSelection(view, event, style, mustFocus));\n if (mustFocus)\n view.observer.ignore(() => focusPreventScroll(view.contentDOM));\n let mouseSel = view.inputState.mouseSelection;\n if (mouseSel) {\n mouseSel.start(event);\n return mouseSel.dragging === false;\n }\n }\n return false;\n};\nfunction rangeForClick(view, pos, bias, type) {\n if (type == 1) { // Single click\n return EditorSelection.cursor(pos, bias);\n }\n else if (type == 2) { // Double click\n return groupAt(view.state, pos, bias);\n }\n else { // Triple click\n let visual = LineView.find(view.docView, pos), line = view.state.doc.lineAt(visual ? visual.posAtEnd : pos);\n let from = visual ? visual.posAtStart : line.from, to = visual ? visual.posAtEnd : line.to;\n if (to < view.state.doc.length && to == line.to)\n to++;\n return EditorSelection.range(from, to);\n }\n}\nlet insideY = (y, rect) => y >= rect.top && y <= rect.bottom;\nlet inside = (x, y, rect) => insideY(y, rect) && x >= rect.left && x <= rect.right;\n// Try to determine, for the given coordinates, associated with the\n// given position, whether they are related to the element before or\n// the element after the position.\nfunction findPositionSide(view, pos, x, y) {\n let line = LineView.find(view.docView, pos);\n if (!line)\n return 1;\n let off = pos - line.posAtStart;\n // Line boundaries point into the line\n if (off == 0)\n return 1;\n if (off == line.length)\n return -1;\n // Positions on top of an element point at that element\n let before = line.coordsAt(off, -1);\n if (before && inside(x, y, before))\n return -1;\n let after = line.coordsAt(off, 1);\n if (after && inside(x, y, after))\n return 1;\n // This is probably a line wrap point. Pick before if the point is\n // beside it.\n return before && insideY(y, before) ? -1 : 1;\n}\nfunction queryPos(view, event) {\n let pos = view.posAtCoords({ x: event.clientX, y: event.clientY }, false);\n return { pos, bias: findPositionSide(view, pos, event.clientX, event.clientY) };\n}\nconst BadMouseDetail = browser.ie && browser.ie_version <= 11;\nlet lastMouseDown = null, lastMouseDownCount = 0, lastMouseDownTime = 0;\nfunction getClickType(event) {\n if (!BadMouseDetail)\n return event.detail;\n let last = lastMouseDown, lastTime = lastMouseDownTime;\n lastMouseDown = event;\n lastMouseDownTime = Date.now();\n return lastMouseDownCount = !last || (lastTime > Date.now() - 400 && Math.abs(last.clientX - event.clientX) < 2 &&\n Math.abs(last.clientY - event.clientY) < 2) ? (lastMouseDownCount + 1) % 3 : 1;\n}\nfunction basicMouseSelection(view, event) {\n let start = queryPos(view, event), type = getClickType(event);\n let startSel = view.state.selection;\n return {\n update(update) {\n if (update.docChanged) {\n start.pos = update.changes.mapPos(start.pos);\n startSel = startSel.map(update.changes);\n }\n },\n get(event, extend, multiple) {\n let cur = queryPos(view, event), removed;\n let range = rangeForClick(view, cur.pos, cur.bias, type);\n if (start.pos != cur.pos && !extend) {\n let startRange = rangeForClick(view, start.pos, start.bias, type);\n let from = Math.min(startRange.from, range.from), to = Math.max(startRange.to, range.to);\n range = from < range.from ? EditorSelection.range(from, to) : EditorSelection.range(to, from);\n }\n if (extend)\n return startSel.replaceRange(startSel.main.extend(range.from, range.to));\n else if (multiple && type == 1 && startSel.ranges.length > 1 && (removed = removeRangeAround(startSel, cur.pos)))\n return removed;\n else if (multiple)\n return startSel.addRange(range);\n else\n return EditorSelection.create([range]);\n }\n };\n}\nfunction removeRangeAround(sel, pos) {\n for (let i = 0; i < sel.ranges.length; i++) {\n let { from, to } = sel.ranges[i];\n if (from <= pos && to >= pos)\n return EditorSelection.create(sel.ranges.slice(0, i).concat(sel.ranges.slice(i + 1)), sel.mainIndex == i ? 0 : sel.mainIndex - (sel.mainIndex > i ? 1 : 0));\n }\n return null;\n}\nhandlers.dragstart = (view, event) => {\n let { selection: { main: range } } = view.state;\n if (event.target.draggable) {\n let cView = view.docView.nearest(event.target);\n if (cView && cView.isWidget) {\n let from = cView.posAtStart, to = from + cView.length;\n if (from >= range.to || to <= range.from)\n range = EditorSelection.range(from, to);\n }\n }\n let { inputState } = view;\n if (inputState.mouseSelection)\n inputState.mouseSelection.dragging = true;\n inputState.draggedContent = range;\n if (event.dataTransfer) {\n event.dataTransfer.setData(\"Text\", view.state.sliceDoc(range.from, range.to));\n event.dataTransfer.effectAllowed = \"copyMove\";\n }\n return false;\n};\nhandlers.dragend = view => {\n view.inputState.draggedContent = null;\n return false;\n};\nfunction dropText(view, event, text, direct) {\n if (!text)\n return;\n let dropPos = view.posAtCoords({ x: event.clientX, y: event.clientY }, false);\n let { draggedContent } = view.inputState;\n let del = direct && draggedContent && dragMovesSelection(view, event)\n ? { from: draggedContent.from, to: draggedContent.to } : null;\n let ins = { from: dropPos, insert: text };\n let changes = view.state.changes(del ? [del, ins] : ins);\n view.focus();\n view.dispatch({\n changes,\n selection: { anchor: changes.mapPos(dropPos, -1), head: changes.mapPos(dropPos, 1) },\n userEvent: del ? \"move.drop\" : \"input.drop\"\n });\n view.inputState.draggedContent = null;\n}\nhandlers.drop = (view, event) => {\n if (!event.dataTransfer)\n return false;\n if (view.state.readOnly)\n return true;\n let files = event.dataTransfer.files;\n if (files && files.length) { // For a file drop, read the file's text.\n let text = Array(files.length), read = 0;\n let finishFile = () => {\n if (++read == files.length)\n dropText(view, event, text.filter(s => s != null).join(view.state.lineBreak), false);\n };\n for (let i = 0; i < files.length; i++) {\n let reader = new FileReader;\n reader.onerror = finishFile;\n reader.onload = () => {\n if (!/[\\x00-\\x08\\x0e-\\x1f]{2}/.test(reader.result))\n text[i] = reader.result;\n finishFile();\n };\n reader.readAsText(files[i]);\n }\n return true;\n }\n else {\n let text = event.dataTransfer.getData(\"Text\");\n if (text) {\n dropText(view, event, text, true);\n return true;\n }\n }\n return false;\n};\nhandlers.paste = (view, event) => {\n if (view.state.readOnly)\n return true;\n view.observer.flush();\n let data = brokenClipboardAPI ? null : event.clipboardData;\n if (data) {\n doPaste(view, data.getData(\"text/plain\") || data.getData(\"text/uri-text\"));\n return true;\n }\n else {\n capturePaste(view);\n return false;\n }\n};\nfunction captureCopy(view, text) {\n // The extra wrapper is somehow necessary on IE/Edge to prevent the\n // content from being mangled when it is put onto the clipboard\n let parent = view.dom.parentNode;\n if (!parent)\n return;\n let target = parent.appendChild(document.createElement(\"textarea\"));\n target.style.cssText = \"position: fixed; left: -10000px; top: 10px\";\n target.value = text;\n target.focus();\n target.selectionEnd = text.length;\n target.selectionStart = 0;\n setTimeout(() => {\n target.remove();\n view.focus();\n }, 50);\n}\nfunction copiedRange(state) {\n let content = [], ranges = [], linewise = false;\n for (let range of state.selection.ranges)\n if (!range.empty) {\n content.push(state.sliceDoc(range.from, range.to));\n ranges.push(range);\n }\n if (!content.length) {\n // Nothing selected, do a line-wise copy\n let upto = -1;\n for (let { from } of state.selection.ranges) {\n let line = state.doc.lineAt(from);\n if (line.number > upto) {\n content.push(line.text);\n ranges.push({ from: line.from, to: Math.min(state.doc.length, line.to + 1) });\n }\n upto = line.number;\n }\n linewise = true;\n }\n return { text: content.join(state.lineBreak), ranges, linewise };\n}\nlet lastLinewiseCopy = null;\nhandlers.copy = handlers.cut = (view, event) => {\n let { text, ranges, linewise } = copiedRange(view.state);\n if (!text && !linewise)\n return false;\n lastLinewiseCopy = linewise ? text : null;\n if (event.type == \"cut\" && !view.state.readOnly)\n view.dispatch({\n changes: ranges,\n scrollIntoView: true,\n userEvent: \"delete.cut\"\n });\n let data = brokenClipboardAPI ? null : event.clipboardData;\n if (data) {\n data.clearData();\n data.setData(\"text/plain\", text);\n return true;\n }\n else {\n captureCopy(view, text);\n return false;\n }\n};\nconst isFocusChange = /*@__PURE__*/Annotation.define();\nfunction focusChangeTransaction(state, focus) {\n let effects = [];\n for (let getEffect of state.facet(focusChangeEffect)) {\n let effect = getEffect(state, focus);\n if (effect)\n effects.push(effect);\n }\n return effects ? state.update({ effects, annotations: isFocusChange.of(true) }) : null;\n}\nfunction updateForFocusChange(view) {\n setTimeout(() => {\n let focus = view.hasFocus;\n if (focus != view.inputState.notifiedFocused) {\n let tr = focusChangeTransaction(view.state, focus);\n if (tr)\n view.dispatch(tr);\n else\n view.update([]);\n }\n }, 10);\n}\nobservers.focus = view => {\n view.inputState.lastFocusTime = Date.now();\n // When focusing reset the scroll position, move it back to where it was\n if (!view.scrollDOM.scrollTop && (view.inputState.lastScrollTop || view.inputState.lastScrollLeft)) {\n view.scrollDOM.scrollTop = view.inputState.lastScrollTop;\n view.scrollDOM.scrollLeft = view.inputState.lastScrollLeft;\n }\n updateForFocusChange(view);\n};\nobservers.blur = view => {\n view.observer.clearSelectionRange();\n updateForFocusChange(view);\n};\nobservers.compositionstart = observers.compositionupdate = view => {\n if (view.inputState.compositionFirstChange == null)\n view.inputState.compositionFirstChange = true;\n if (view.inputState.composing < 0) {\n // FIXME possibly set a timeout to clear it again on Android\n view.inputState.composing = 0;\n }\n};\nobservers.compositionend = view => {\n view.inputState.composing = -1;\n view.inputState.compositionEndedAt = Date.now();\n view.inputState.compositionPendingKey = true;\n view.inputState.compositionPendingChange = view.observer.pendingRecords().length > 0;\n view.inputState.compositionFirstChange = null;\n if (browser.chrome && browser.android) {\n // Delay flushing for a bit on Android because it'll often fire a\n // bunch of contradictory changes in a row at end of compositon\n view.observer.flushSoon();\n }\n else if (view.inputState.compositionPendingChange) {\n // If we found pending records, schedule a flush.\n Promise.resolve().then(() => view.observer.flush());\n }\n else {\n // Otherwise, make sure that, if no changes come in soon, the\n // composition view is cleared.\n setTimeout(() => {\n if (view.inputState.composing < 0 && view.docView.hasComposition)\n view.update([]);\n }, 50);\n }\n};\nobservers.contextmenu = view => {\n view.inputState.lastContextMenu = Date.now();\n};\nhandlers.beforeinput = (view, event) => {\n var _a;\n // Because Chrome Android doesn't fire useful key events, use\n // beforeinput to detect backspace (and possibly enter and delete,\n // but those usually don't even seem to fire beforeinput events at\n // the moment) and fake a key event for it.\n //\n // (preventDefault on beforeinput, though supported in the spec,\n // seems to do nothing at all on Chrome).\n let pending;\n if (browser.chrome && browser.android && (pending = PendingKeys.find(key => key.inputType == event.inputType))) {\n view.observer.delayAndroidKey(pending.key, pending.keyCode);\n if (pending.key == \"Backspace\" || pending.key == \"Delete\") {\n let startViewHeight = ((_a = window.visualViewport) === null || _a === void 0 ? void 0 : _a.height) || 0;\n setTimeout(() => {\n var _a;\n // Backspacing near uneditable nodes on Chrome Android sometimes\n // closes the virtual keyboard. This tries to crudely detect\n // that and refocus to get it back.\n if ((((_a = window.visualViewport) === null || _a === void 0 ? void 0 : _a.height) || 0) > startViewHeight + 10 && view.hasFocus) {\n view.contentDOM.blur();\n view.focus();\n }\n }, 100);\n }\n }\n return false;\n};\nconst appliedFirefoxHack = /*@__PURE__*/new Set;\n// In Firefox, when cut/copy handlers are added to the document, that\n// somehow avoids a bug where those events aren't fired when the\n// selection is empty. See https://github.com/codemirror/dev/issues/1082\n// and https://bugzilla.mozilla.org/show_bug.cgi?id=995961\nfunction firefoxCopyCutHack(doc) {\n if (!appliedFirefoxHack.has(doc)) {\n appliedFirefoxHack.add(doc);\n doc.addEventListener(\"copy\", () => { });\n doc.addEventListener(\"cut\", () => { });\n }\n}\n\nconst wrappingWhiteSpace = [\"pre-wrap\", \"normal\", \"pre-line\", \"break-spaces\"];\nclass HeightOracle {\n constructor(lineWrapping) {\n this.lineWrapping = lineWrapping;\n this.doc = Text.empty;\n this.heightSamples = {};\n this.lineHeight = 14; // The height of an entire line (line-height)\n this.charWidth = 7;\n this.textHeight = 14; // The height of the actual font (font-size)\n this.lineLength = 30;\n // Used to track, during updateHeight, if any actual heights changed\n this.heightChanged = false;\n }\n heightForGap(from, to) {\n let lines = this.doc.lineAt(to).number - this.doc.lineAt(from).number + 1;\n if (this.lineWrapping)\n lines += Math.max(0, Math.ceil(((to - from) - (lines * this.lineLength * 0.5)) / this.lineLength));\n return this.lineHeight * lines;\n }\n heightForLine(length) {\n if (!this.lineWrapping)\n return this.lineHeight;\n let lines = 1 + Math.max(0, Math.ceil((length - this.lineLength) / (this.lineLength - 5)));\n return lines * this.lineHeight;\n }\n setDoc(doc) { this.doc = doc; return this; }\n mustRefreshForWrapping(whiteSpace) {\n return (wrappingWhiteSpace.indexOf(whiteSpace) > -1) != this.lineWrapping;\n }\n mustRefreshForHeights(lineHeights) {\n let newHeight = false;\n for (let i = 0; i < lineHeights.length; i++) {\n let h = lineHeights[i];\n if (h < 0) {\n i++;\n }\n else if (!this.heightSamples[Math.floor(h * 10)]) { // Round to .1 pixels\n newHeight = true;\n this.heightSamples[Math.floor(h * 10)] = true;\n }\n }\n return newHeight;\n }\n refresh(whiteSpace, lineHeight, charWidth, textHeight, lineLength, knownHeights) {\n let lineWrapping = wrappingWhiteSpace.indexOf(whiteSpace) > -1;\n let changed = Math.round(lineHeight) != Math.round(this.lineHeight) || this.lineWrapping != lineWrapping;\n this.lineWrapping = lineWrapping;\n this.lineHeight = lineHeight;\n this.charWidth = charWidth;\n this.textHeight = textHeight;\n this.lineLength = lineLength;\n if (changed) {\n this.heightSamples = {};\n for (let i = 0; i < knownHeights.length; i++) {\n let h = knownHeights[i];\n if (h < 0)\n i++;\n else\n this.heightSamples[Math.floor(h * 10)] = true;\n }\n }\n return changed;\n }\n}\n// This object is used by `updateHeight` to make DOM measurements\n// arrive at the right nides. The `heights` array is a sequence of\n// block heights, starting from position `from`.\nclass MeasuredHeights {\n constructor(from, heights) {\n this.from = from;\n this.heights = heights;\n this.index = 0;\n }\n get more() { return this.index < this.heights.length; }\n}\n/**\nRecord used to represent information about a block-level element\nin the editor view.\n*/\nclass BlockInfo {\n /**\n @internal\n */\n constructor(\n /**\n The start of the element in the document.\n */\n from, \n /**\n The length of the element.\n */\n length, \n /**\n The top position of the element (relative to the top of the\n document).\n */\n top, \n /**\n Its height.\n */\n height, \n /**\n @internal Weird packed field that holds an array of children\n for composite blocks, a decoration for block widgets, and a\n number indicating the amount of widget-create line breaks for\n text blocks.\n */\n _content) {\n this.from = from;\n this.length = length;\n this.top = top;\n this.height = height;\n this._content = _content;\n }\n /**\n The type of element this is. When querying lines, this may be\n an array of all the blocks that make up the line.\n */\n get type() {\n return typeof this._content == \"number\" ? BlockType.Text :\n Array.isArray(this._content) ? this._content : this._content.type;\n }\n /**\n The end of the element as a document position.\n */\n get to() { return this.from + this.length; }\n /**\n The bottom position of the element.\n */\n get bottom() { return this.top + this.height; }\n /**\n If this is a widget block, this will return the widget\n associated with it.\n */\n get widget() {\n return this._content instanceof PointDecoration ? this._content.widget : null;\n }\n /**\n If this is a textblock, this holds the number of line breaks\n that appear in widgets inside the block.\n */\n get widgetLineBreaks() {\n return typeof this._content == \"number\" ? this._content : 0;\n }\n /**\n @internal\n */\n join(other) {\n let content = (Array.isArray(this._content) ? this._content : [this])\n .concat(Array.isArray(other._content) ? other._content : [other]);\n return new BlockInfo(this.from, this.length + other.length, this.top, this.height + other.height, content);\n }\n}\nvar QueryType = /*@__PURE__*/(function (QueryType) {\n QueryType[QueryType[\"ByPos\"] = 0] = \"ByPos\";\n QueryType[QueryType[\"ByHeight\"] = 1] = \"ByHeight\";\n QueryType[QueryType[\"ByPosNoHeight\"] = 2] = \"ByPosNoHeight\";\nreturn QueryType})(QueryType || (QueryType = {}));\nconst Epsilon = 1e-3;\nclass HeightMap {\n constructor(length, // The number of characters covered\n height, // Height of this part of the document\n flags = 2 /* Flag.Outdated */) {\n this.length = length;\n this.height = height;\n this.flags = flags;\n }\n get outdated() { return (this.flags & 2 /* Flag.Outdated */) > 0; }\n set outdated(value) { this.flags = (value ? 2 /* Flag.Outdated */ : 0) | (this.flags & ~2 /* Flag.Outdated */); }\n setHeight(oracle, height) {\n if (this.height != height) {\n if (Math.abs(this.height - height) > Epsilon)\n oracle.heightChanged = true;\n this.height = height;\n }\n }\n // Base case is to replace a leaf node, which simply builds a tree\n // from the new nodes and returns that (HeightMapBranch and\n // HeightMapGap override this to actually use from/to)\n replace(_from, _to, nodes) {\n return HeightMap.of(nodes);\n }\n // Again, these are base cases, and are overridden for branch and gap nodes.\n decomposeLeft(_to, result) { result.push(this); }\n decomposeRight(_from, result) { result.push(this); }\n applyChanges(decorations, oldDoc, oracle, changes) {\n let me = this, doc = oracle.doc;\n for (let i = changes.length - 1; i >= 0; i--) {\n let { fromA, toA, fromB, toB } = changes[i];\n let start = me.lineAt(fromA, QueryType.ByPosNoHeight, oracle.setDoc(oldDoc), 0, 0);\n let end = start.to >= toA ? start : me.lineAt(toA, QueryType.ByPosNoHeight, oracle, 0, 0);\n toB += end.to - toA;\n toA = end.to;\n while (i > 0 && start.from <= changes[i - 1].toA) {\n fromA = changes[i - 1].fromA;\n fromB = changes[i - 1].fromB;\n i--;\n if (fromA < start.from)\n start = me.lineAt(fromA, QueryType.ByPosNoHeight, oracle, 0, 0);\n }\n fromB += start.from - fromA;\n fromA = start.from;\n let nodes = NodeBuilder.build(oracle.setDoc(doc), decorations, fromB, toB);\n me = me.replace(fromA, toA, nodes);\n }\n return me.updateHeight(oracle, 0);\n }\n static empty() { return new HeightMapText(0, 0); }\n // nodes uses null values to indicate the position of line breaks.\n // There are never line breaks at the start or end of the array, or\n // two line breaks next to each other, and the array isn't allowed\n // to be empty (same restrictions as return value from the builder).\n static of(nodes) {\n if (nodes.length == 1)\n return nodes[0];\n let i = 0, j = nodes.length, before = 0, after = 0;\n for (;;) {\n if (i == j) {\n if (before > after * 2) {\n let split = nodes[i - 1];\n if (split.break)\n nodes.splice(--i, 1, split.left, null, split.right);\n else\n nodes.splice(--i, 1, split.left, split.right);\n j += 1 + split.break;\n before -= split.size;\n }\n else if (after > before * 2) {\n let split = nodes[j];\n if (split.break)\n nodes.splice(j, 1, split.left, null, split.right);\n else\n nodes.splice(j, 1, split.left, split.right);\n j += 2 + split.break;\n after -= split.size;\n }\n else {\n break;\n }\n }\n else if (before < after) {\n let next = nodes[i++];\n if (next)\n before += next.size;\n }\n else {\n let next = nodes[--j];\n if (next)\n after += next.size;\n }\n }\n let brk = 0;\n if (nodes[i - 1] == null) {\n brk = 1;\n i--;\n }\n else if (nodes[i] == null) {\n brk = 1;\n j++;\n }\n return new HeightMapBranch(HeightMap.of(nodes.slice(0, i)), brk, HeightMap.of(nodes.slice(j)));\n }\n}\nHeightMap.prototype.size = 1;\nclass HeightMapBlock extends HeightMap {\n constructor(length, height, deco) {\n super(length, height);\n this.deco = deco;\n }\n blockAt(_height, _oracle, top, offset) {\n return new BlockInfo(offset, this.length, top, this.height, this.deco || 0);\n }\n lineAt(_value, _type, oracle, top, offset) {\n return this.blockAt(0, oracle, top, offset);\n }\n forEachLine(from, to, oracle, top, offset, f) {\n if (from <= offset + this.length && to >= offset)\n f(this.blockAt(0, oracle, top, offset));\n }\n updateHeight(oracle, offset = 0, _force = false, measured) {\n if (measured && measured.from <= offset && measured.more)\n this.setHeight(oracle, measured.heights[measured.index++]);\n this.outdated = false;\n return this;\n }\n toString() { return `block(${this.length})`; }\n}\nclass HeightMapText extends HeightMapBlock {\n constructor(length, height) {\n super(length, height, null);\n this.collapsed = 0; // Amount of collapsed content in the line\n this.widgetHeight = 0; // Maximum inline widget height\n this.breaks = 0; // Number of widget-introduced line breaks on the line\n }\n blockAt(_height, _oracle, top, offset) {\n return new BlockInfo(offset, this.length, top, this.height, this.breaks);\n }\n replace(_from, _to, nodes) {\n let node = nodes[0];\n if (nodes.length == 1 && (node instanceof HeightMapText || node instanceof HeightMapGap && (node.flags & 4 /* Flag.SingleLine */)) &&\n Math.abs(this.length - node.length) < 10) {\n if (node instanceof HeightMapGap)\n node = new HeightMapText(node.length, this.height);\n else\n node.height = this.height;\n if (!this.outdated)\n node.outdated = false;\n return node;\n }\n else {\n return HeightMap.of(nodes);\n }\n }\n updateHeight(oracle, offset = 0, force = false, measured) {\n if (measured && measured.from <= offset && measured.more)\n this.setHeight(oracle, measured.heights[measured.index++]);\n else if (force || this.outdated)\n this.setHeight(oracle, Math.max(this.widgetHeight, oracle.heightForLine(this.length - this.collapsed)) +\n this.breaks * oracle.lineHeight);\n this.outdated = false;\n return this;\n }\n toString() {\n return `line(${this.length}${this.collapsed ? -this.collapsed : \"\"}${this.widgetHeight ? \":\" + this.widgetHeight : \"\"})`;\n }\n}\nclass HeightMapGap extends HeightMap {\n constructor(length) { super(length, 0); }\n heightMetrics(oracle, offset) {\n let firstLine = oracle.doc.lineAt(offset).number, lastLine = oracle.doc.lineAt(offset + this.length).number;\n let lines = lastLine - firstLine + 1;\n let perLine, perChar = 0;\n if (oracle.lineWrapping) {\n let totalPerLine = Math.min(this.height, oracle.lineHeight * lines);\n perLine = totalPerLine / lines;\n if (this.length > lines + 1)\n perChar = (this.height - totalPerLine) / (this.length - lines - 1);\n }\n else {\n perLine = this.height / lines;\n }\n return { firstLine, lastLine, perLine, perChar };\n }\n blockAt(height, oracle, top, offset) {\n let { firstLine, lastLine, perLine, perChar } = this.heightMetrics(oracle, offset);\n if (oracle.lineWrapping) {\n let guess = offset + Math.round(Math.max(0, Math.min(1, (height - top) / this.height)) * this.length);\n let line = oracle.doc.lineAt(guess), lineHeight = perLine + line.length * perChar;\n let lineTop = Math.max(top, height - lineHeight / 2);\n return new BlockInfo(line.from, line.length, lineTop, lineHeight, 0);\n }\n else {\n let line = Math.max(0, Math.min(lastLine - firstLine, Math.floor((height - top) / perLine)));\n let { from, length } = oracle.doc.line(firstLine + line);\n return new BlockInfo(from, length, top + perLine * line, perLine, 0);\n }\n }\n lineAt(value, type, oracle, top, offset) {\n if (type == QueryType.ByHeight)\n return this.blockAt(value, oracle, top, offset);\n if (type == QueryType.ByPosNoHeight) {\n let { from, to } = oracle.doc.lineAt(value);\n return new BlockInfo(from, to - from, 0, 0, 0);\n }\n let { firstLine, perLine, perChar } = this.heightMetrics(oracle, offset);\n let line = oracle.doc.lineAt(value), lineHeight = perLine + line.length * perChar;\n let linesAbove = line.number - firstLine;\n let lineTop = top + perLine * linesAbove + perChar * (line.from - offset - linesAbove);\n return new BlockInfo(line.from, line.length, Math.max(top, Math.min(lineTop, top + this.height - lineHeight)), lineHeight, 0);\n }\n forEachLine(from, to, oracle, top, offset, f) {\n from = Math.max(from, offset);\n to = Math.min(to, offset + this.length);\n let { firstLine, perLine, perChar } = this.heightMetrics(oracle, offset);\n for (let pos = from, lineTop = top; pos <= to;) {\n let line = oracle.doc.lineAt(pos);\n if (pos == from) {\n let linesAbove = line.number - firstLine;\n lineTop += perLine * linesAbove + perChar * (from - offset - linesAbove);\n }\n let lineHeight = perLine + perChar * line.length;\n f(new BlockInfo(line.from, line.length, lineTop, lineHeight, 0));\n lineTop += lineHeight;\n pos = line.to + 1;\n }\n }\n replace(from, to, nodes) {\n let after = this.length - to;\n if (after > 0) {\n let last = nodes[nodes.length - 1];\n if (last instanceof HeightMapGap)\n nodes[nodes.length - 1] = new HeightMapGap(last.length + after);\n else\n nodes.push(null, new HeightMapGap(after - 1));\n }\n if (from > 0) {\n let first = nodes[0];\n if (first instanceof HeightMapGap)\n nodes[0] = new HeightMapGap(from + first.length);\n else\n nodes.unshift(new HeightMapGap(from - 1), null);\n }\n return HeightMap.of(nodes);\n }\n decomposeLeft(to, result) {\n result.push(new HeightMapGap(to - 1), null);\n }\n decomposeRight(from, result) {\n result.push(null, new HeightMapGap(this.length - from - 1));\n }\n updateHeight(oracle, offset = 0, force = false, measured) {\n let end = offset + this.length;\n if (measured && measured.from <= offset + this.length && measured.more) {\n // Fill in part of this gap with measured lines. We know there\n // can't be widgets or collapsed ranges in those lines, because\n // they would already have been added to the heightmap (gaps\n // only contain plain text).\n let nodes = [], pos = Math.max(offset, measured.from), singleHeight = -1;\n if (measured.from > offset)\n nodes.push(new HeightMapGap(measured.from - offset - 1).updateHeight(oracle, offset));\n while (pos <= end && measured.more) {\n let len = oracle.doc.lineAt(pos).length;\n if (nodes.length)\n nodes.push(null);\n let height = measured.heights[measured.index++];\n if (singleHeight == -1)\n singleHeight = height;\n else if (Math.abs(height - singleHeight) >= Epsilon)\n singleHeight = -2;\n let line = new HeightMapText(len, height);\n line.outdated = false;\n nodes.push(line);\n pos += len + 1;\n }\n if (pos <= end)\n nodes.push(null, new HeightMapGap(end - pos).updateHeight(oracle, pos));\n let result = HeightMap.of(nodes);\n if (singleHeight < 0 || Math.abs(result.height - this.height) >= Epsilon ||\n Math.abs(singleHeight - this.heightMetrics(oracle, offset).perLine) >= Epsilon)\n oracle.heightChanged = true;\n return result;\n }\n else if (force || this.outdated) {\n this.setHeight(oracle, oracle.heightForGap(offset, offset + this.length));\n this.outdated = false;\n }\n return this;\n }\n toString() { return `gap(${this.length})`; }\n}\nclass HeightMapBranch extends HeightMap {\n constructor(left, brk, right) {\n super(left.length + brk + right.length, left.height + right.height, brk | (left.outdated || right.outdated ? 2 /* Flag.Outdated */ : 0));\n this.left = left;\n this.right = right;\n this.size = left.size + right.size;\n }\n get break() { return this.flags & 1 /* Flag.Break */; }\n blockAt(height, oracle, top, offset) {\n let mid = top + this.left.height;\n return height < mid ? this.left.blockAt(height, oracle, top, offset)\n : this.right.blockAt(height, oracle, mid, offset + this.left.length + this.break);\n }\n lineAt(value, type, oracle, top, offset) {\n let rightTop = top + this.left.height, rightOffset = offset + this.left.length + this.break;\n let left = type == QueryType.ByHeight ? value < rightTop : value < rightOffset;\n let base = left ? this.left.lineAt(value, type, oracle, top, offset)\n : this.right.lineAt(value, type, oracle, rightTop, rightOffset);\n if (this.break || (left ? base.to < rightOffset : base.from > rightOffset))\n return base;\n let subQuery = type == QueryType.ByPosNoHeight ? QueryType.ByPosNoHeight : QueryType.ByPos;\n if (left)\n return base.join(this.right.lineAt(rightOffset, subQuery, oracle, rightTop, rightOffset));\n else\n return this.left.lineAt(rightOffset, subQuery, oracle, top, offset).join(base);\n }\n forEachLine(from, to, oracle, top, offset, f) {\n let rightTop = top + this.left.height, rightOffset = offset + this.left.length + this.break;\n if (this.break) {\n if (from < rightOffset)\n this.left.forEachLine(from, to, oracle, top, offset, f);\n if (to >= rightOffset)\n this.right.forEachLine(from, to, oracle, rightTop, rightOffset, f);\n }\n else {\n let mid = this.lineAt(rightOffset, QueryType.ByPos, oracle, top, offset);\n if (from < mid.from)\n this.left.forEachLine(from, mid.from - 1, oracle, top, offset, f);\n if (mid.to >= from && mid.from <= to)\n f(mid);\n if (to > mid.to)\n this.right.forEachLine(mid.to + 1, to, oracle, rightTop, rightOffset, f);\n }\n }\n replace(from, to, nodes) {\n let rightStart = this.left.length + this.break;\n if (to < rightStart)\n return this.balanced(this.left.replace(from, to, nodes), this.right);\n if (from > this.left.length)\n return this.balanced(this.left, this.right.replace(from - rightStart, to - rightStart, nodes));\n let result = [];\n if (from > 0)\n this.decomposeLeft(from, result);\n let left = result.length;\n for (let node of nodes)\n result.push(node);\n if (from > 0)\n mergeGaps(result, left - 1);\n if (to < this.length) {\n let right = result.length;\n this.decomposeRight(to, result);\n mergeGaps(result, right);\n }\n return HeightMap.of(result);\n }\n decomposeLeft(to, result) {\n let left = this.left.length;\n if (to <= left)\n return this.left.decomposeLeft(to, result);\n result.push(this.left);\n if (this.break) {\n left++;\n if (to >= left)\n result.push(null);\n }\n if (to > left)\n this.right.decomposeLeft(to - left, result);\n }\n decomposeRight(from, result) {\n let left = this.left.length, right = left + this.break;\n if (from >= right)\n return this.right.decomposeRight(from - right, result);\n if (from < left)\n this.left.decomposeRight(from, result);\n if (this.break && from < right)\n result.push(null);\n result.push(this.right);\n }\n balanced(left, right) {\n if (left.size > 2 * right.size || right.size > 2 * left.size)\n return HeightMap.of(this.break ? [left, null, right] : [left, right]);\n this.left = left;\n this.right = right;\n this.height = left.height + right.height;\n this.outdated = left.outdated || right.outdated;\n this.size = left.size + right.size;\n this.length = left.length + this.break + right.length;\n return this;\n }\n updateHeight(oracle, offset = 0, force = false, measured) {\n let { left, right } = this, rightStart = offset + left.length + this.break, rebalance = null;\n if (measured && measured.from <= offset + left.length && measured.more)\n rebalance = left = left.updateHeight(oracle, offset, force, measured);\n else\n left.updateHeight(oracle, offset, force);\n if (measured && measured.from <= rightStart + right.length && measured.more)\n rebalance = right = right.updateHeight(oracle, rightStart, force, measured);\n else\n right.updateHeight(oracle, rightStart, force);\n if (rebalance)\n return this.balanced(left, right);\n this.height = this.left.height + this.right.height;\n this.outdated = false;\n return this;\n }\n toString() { return this.left + (this.break ? \" \" : \"-\") + this.right; }\n}\nfunction mergeGaps(nodes, around) {\n let before, after;\n if (nodes[around] == null &&\n (before = nodes[around - 1]) instanceof HeightMapGap &&\n (after = nodes[around + 1]) instanceof HeightMapGap)\n nodes.splice(around - 1, 3, new HeightMapGap(before.length + 1 + after.length));\n}\nconst relevantWidgetHeight = 5;\nclass NodeBuilder {\n constructor(pos, oracle) {\n this.pos = pos;\n this.oracle = oracle;\n this.nodes = [];\n this.lineStart = -1;\n this.lineEnd = -1;\n this.covering = null;\n this.writtenTo = pos;\n }\n get isCovered() {\n return this.covering && this.nodes[this.nodes.length - 1] == this.covering;\n }\n span(_from, to) {\n if (this.lineStart > -1) {\n let end = Math.min(to, this.lineEnd), last = this.nodes[this.nodes.length - 1];\n if (last instanceof HeightMapText)\n last.length += end - this.pos;\n else if (end > this.pos || !this.isCovered)\n this.nodes.push(new HeightMapText(end - this.pos, -1));\n this.writtenTo = end;\n if (to > end) {\n this.nodes.push(null);\n this.writtenTo++;\n this.lineStart = -1;\n }\n }\n this.pos = to;\n }\n point(from, to, deco) {\n if (from < to || deco.heightRelevant) {\n let height = deco.widget ? deco.widget.estimatedHeight : 0;\n let breaks = deco.widget ? deco.widget.lineBreaks : 0;\n if (height < 0)\n height = this.oracle.lineHeight;\n let len = to - from;\n if (deco.block) {\n this.addBlock(new HeightMapBlock(len, height, deco));\n }\n else if (len || breaks || height >= relevantWidgetHeight) {\n this.addLineDeco(height, breaks, len);\n }\n }\n else if (to > from) {\n this.span(from, to);\n }\n if (this.lineEnd > -1 && this.lineEnd < this.pos)\n this.lineEnd = this.oracle.doc.lineAt(this.pos).to;\n }\n enterLine() {\n if (this.lineStart > -1)\n return;\n let { from, to } = this.oracle.doc.lineAt(this.pos);\n this.lineStart = from;\n this.lineEnd = to;\n if (this.writtenTo < from) {\n if (this.writtenTo < from - 1 || this.nodes[this.nodes.length - 1] == null)\n this.nodes.push(this.blankContent(this.writtenTo, from - 1));\n this.nodes.push(null);\n }\n if (this.pos > from)\n this.nodes.push(new HeightMapText(this.pos - from, -1));\n this.writtenTo = this.pos;\n }\n blankContent(from, to) {\n let gap = new HeightMapGap(to - from);\n if (this.oracle.doc.lineAt(from).to == to)\n gap.flags |= 4 /* Flag.SingleLine */;\n return gap;\n }\n ensureLine() {\n this.enterLine();\n let last = this.nodes.length ? this.nodes[this.nodes.length - 1] : null;\n if (last instanceof HeightMapText)\n return last;\n let line = new HeightMapText(0, -1);\n this.nodes.push(line);\n return line;\n }\n addBlock(block) {\n this.enterLine();\n let deco = block.deco;\n if (deco && deco.startSide > 0 && !this.isCovered)\n this.ensureLine();\n this.nodes.push(block);\n this.writtenTo = this.pos = this.pos + block.length;\n if (deco && deco.endSide > 0)\n this.covering = block;\n }\n addLineDeco(height, breaks, length) {\n let line = this.ensureLine();\n line.length += length;\n line.collapsed += length;\n line.widgetHeight = Math.max(line.widgetHeight, height);\n line.breaks += breaks;\n this.writtenTo = this.pos = this.pos + length;\n }\n finish(from) {\n let last = this.nodes.length == 0 ? null : this.nodes[this.nodes.length - 1];\n if (this.lineStart > -1 && !(last instanceof HeightMapText) && !this.isCovered)\n this.nodes.push(new HeightMapText(0, -1));\n else if (this.writtenTo < this.pos || last == null)\n this.nodes.push(this.blankContent(this.writtenTo, this.pos));\n let pos = from;\n for (let node of this.nodes) {\n if (node instanceof HeightMapText)\n node.updateHeight(this.oracle, pos);\n pos += node ? node.length : 1;\n }\n return this.nodes;\n }\n // Always called with a region that on both sides either stretches\n // to a line break or the end of the document.\n // The returned array uses null to indicate line breaks, but never\n // starts or ends in a line break, or has multiple line breaks next\n // to each other.\n static build(oracle, decorations, from, to) {\n let builder = new NodeBuilder(from, oracle);\n RangeSet.spans(decorations, from, to, builder, 0);\n return builder.finish(from);\n }\n}\nfunction heightRelevantDecoChanges(a, b, diff) {\n let comp = new DecorationComparator;\n RangeSet.compare(a, b, diff, comp, 0);\n return comp.changes;\n}\nclass DecorationComparator {\n constructor() {\n this.changes = [];\n }\n compareRange() { }\n comparePoint(from, to, a, b) {\n if (from < to || a && a.heightRelevant || b && b.heightRelevant)\n addRange(from, to, this.changes, 5);\n }\n}\n\nfunction visiblePixelRange(dom, paddingTop) {\n let rect = dom.getBoundingClientRect();\n let doc = dom.ownerDocument, win = doc.defaultView || window;\n let left = Math.max(0, rect.left), right = Math.min(win.innerWidth, rect.right);\n let top = Math.max(0, rect.top), bottom = Math.min(win.innerHeight, rect.bottom);\n for (let parent = dom.parentNode; parent && parent != doc.body;) {\n if (parent.nodeType == 1) {\n let elt = parent;\n let style = window.getComputedStyle(elt);\n if ((elt.scrollHeight > elt.clientHeight || elt.scrollWidth > elt.clientWidth) &&\n style.overflow != \"visible\") {\n let parentRect = elt.getBoundingClientRect();\n left = Math.max(left, parentRect.left);\n right = Math.min(right, parentRect.right);\n top = Math.max(top, parentRect.top);\n bottom = parent == dom.parentNode ? parentRect.bottom : Math.min(bottom, parentRect.bottom);\n }\n parent = style.position == \"absolute\" || style.position == \"fixed\" ? elt.offsetParent : elt.parentNode;\n }\n else if (parent.nodeType == 11) { // Shadow root\n parent = parent.host;\n }\n else {\n break;\n }\n }\n return { left: left - rect.left, right: Math.max(left, right) - rect.left,\n top: top - (rect.top + paddingTop), bottom: Math.max(top, bottom) - (rect.top + paddingTop) };\n}\nfunction fullPixelRange(dom, paddingTop) {\n let rect = dom.getBoundingClientRect();\n return { left: 0, right: rect.right - rect.left,\n top: paddingTop, bottom: rect.bottom - (rect.top + paddingTop) };\n}\n// Line gaps are placeholder widgets used to hide pieces of overlong\n// lines within the viewport, as a kludge to keep the editor\n// responsive when a ridiculously long line is loaded into it.\nclass LineGap {\n constructor(from, to, size) {\n this.from = from;\n this.to = to;\n this.size = size;\n }\n static same(a, b) {\n if (a.length != b.length)\n return false;\n for (let i = 0; i < a.length; i++) {\n let gA = a[i], gB = b[i];\n if (gA.from != gB.from || gA.to != gB.to || gA.size != gB.size)\n return false;\n }\n return true;\n }\n draw(viewState, wrapping) {\n return Decoration.replace({\n widget: new LineGapWidget(this.size * (wrapping ? viewState.scaleY : viewState.scaleX), wrapping)\n }).range(this.from, this.to);\n }\n}\nclass LineGapWidget extends WidgetType {\n constructor(size, vertical) {\n super();\n this.size = size;\n this.vertical = vertical;\n }\n eq(other) { return other.size == this.size && other.vertical == this.vertical; }\n toDOM() {\n let elt = document.createElement(\"div\");\n if (this.vertical) {\n elt.style.height = this.size + \"px\";\n }\n else {\n elt.style.width = this.size + \"px\";\n elt.style.height = \"2px\";\n elt.style.display = \"inline-block\";\n }\n return elt;\n }\n get estimatedHeight() { return this.vertical ? this.size : -1; }\n}\nclass ViewState {\n constructor(state) {\n this.state = state;\n // These are contentDOM-local coordinates\n this.pixelViewport = { left: 0, right: window.innerWidth, top: 0, bottom: 0 };\n this.inView = true;\n this.paddingTop = 0; // Padding above the document, scaled\n this.paddingBottom = 0; // Padding below the document, scaled\n this.contentDOMWidth = 0; // contentDOM.getBoundingClientRect().width\n this.contentDOMHeight = 0; // contentDOM.getBoundingClientRect().height\n this.editorHeight = 0; // scrollDOM.clientHeight, unscaled\n this.editorWidth = 0; // scrollDOM.clientWidth, unscaled\n this.scrollTop = 0; // Last seen scrollDOM.scrollTop, scaled\n this.scrolledToBottom = true;\n // The CSS-transformation scale of the editor (transformed size /\n // concrete size)\n this.scaleX = 1;\n this.scaleY = 1;\n // The vertical position (document-relative) to which to anchor the\n // scroll position. -1 means anchor to the end of the document.\n this.scrollAnchorPos = 0;\n // The height at the anchor position. Set by the DOM update phase.\n // -1 means no height available.\n this.scrollAnchorHeight = -1;\n // See VP.MaxDOMHeight\n this.scaler = IdScaler;\n this.scrollTarget = null;\n // Briefly set to true when printing, to disable viewport limiting\n this.printing = false;\n // Flag set when editor content was redrawn, so that the next\n // measure stage knows it must read DOM layout\n this.mustMeasureContent = true;\n this.defaultTextDirection = Direction.LTR;\n this.visibleRanges = [];\n // Cursor 'assoc' is only significant when the cursor is on a line\n // wrap point, where it must stick to the character that it is\n // associated with. Since browsers don't provide a reasonable\n // interface to set or query this, when a selection is set that\n // might cause this to be significant, this flag is set. The next\n // measure phase will check whether the cursor is on a line-wrapping\n // boundary and, if so, reset it to make sure it is positioned in\n // the right place.\n this.mustEnforceCursorAssoc = false;\n let guessWrapping = state.facet(contentAttributes).some(v => typeof v != \"function\" && v.class == \"cm-lineWrapping\");\n this.heightOracle = new HeightOracle(guessWrapping);\n this.stateDeco = state.facet(decorations).filter(d => typeof d != \"function\");\n this.heightMap = HeightMap.empty().applyChanges(this.stateDeco, Text.empty, this.heightOracle.setDoc(state.doc), [new ChangedRange(0, 0, 0, state.doc.length)]);\n this.viewport = this.getViewport(0, null);\n this.updateViewportLines();\n this.updateForViewport();\n this.lineGaps = this.ensureLineGaps([]);\n this.lineGapDeco = Decoration.set(this.lineGaps.map(gap => gap.draw(this, false)));\n this.computeVisibleRanges();\n }\n updateForViewport() {\n let viewports = [this.viewport], { main } = this.state.selection;\n for (let i = 0; i <= 1; i++) {\n let pos = i ? main.head : main.anchor;\n if (!viewports.some(({ from, to }) => pos >= from && pos <= to)) {\n let { from, to } = this.lineBlockAt(pos);\n viewports.push(new Viewport(from, to));\n }\n }\n this.viewports = viewports.sort((a, b) => a.from - b.from);\n this.scaler = this.heightMap.height <= 7000000 /* VP.MaxDOMHeight */ ? IdScaler :\n new BigScaler(this.heightOracle, this.heightMap, this.viewports);\n }\n updateViewportLines() {\n this.viewportLines = [];\n this.heightMap.forEachLine(this.viewport.from, this.viewport.to, this.heightOracle.setDoc(this.state.doc), 0, 0, block => {\n this.viewportLines.push(this.scaler.scale == 1 ? block : scaleBlock(block, this.scaler));\n });\n }\n update(update, scrollTarget = null) {\n this.state = update.state;\n let prevDeco = this.stateDeco;\n this.stateDeco = this.state.facet(decorations).filter(d => typeof d != \"function\");\n let contentChanges = update.changedRanges;\n let heightChanges = ChangedRange.extendWithRanges(contentChanges, heightRelevantDecoChanges(prevDeco, this.stateDeco, update ? update.changes : ChangeSet.empty(this.state.doc.length)));\n let prevHeight = this.heightMap.height;\n let scrollAnchor = this.scrolledToBottom ? null : this.scrollAnchorAt(this.scrollTop);\n this.heightMap = this.heightMap.applyChanges(this.stateDeco, update.startState.doc, this.heightOracle.setDoc(this.state.doc), heightChanges);\n if (this.heightMap.height != prevHeight)\n update.flags |= 2 /* UpdateFlag.Height */;\n if (scrollAnchor) {\n this.scrollAnchorPos = update.changes.mapPos(scrollAnchor.from, -1);\n this.scrollAnchorHeight = scrollAnchor.top;\n }\n else {\n this.scrollAnchorPos = -1;\n this.scrollAnchorHeight = this.heightMap.height;\n }\n let viewport = heightChanges.length ? this.mapViewport(this.viewport, update.changes) : this.viewport;\n if (scrollTarget && (scrollTarget.range.head < viewport.from || scrollTarget.range.head > viewport.to) ||\n !this.viewportIsAppropriate(viewport))\n viewport = this.getViewport(0, scrollTarget);\n let updateLines = !update.changes.empty || (update.flags & 2 /* UpdateFlag.Height */) ||\n viewport.from != this.viewport.from || viewport.to != this.viewport.to;\n this.viewport = viewport;\n this.updateForViewport();\n if (updateLines)\n this.updateViewportLines();\n if (this.lineGaps.length || this.viewport.to - this.viewport.from > (2000 /* LG.Margin */ << 1))\n this.updateLineGaps(this.ensureLineGaps(this.mapLineGaps(this.lineGaps, update.changes)));\n update.flags |= this.computeVisibleRanges();\n if (scrollTarget)\n this.scrollTarget = scrollTarget;\n if (!this.mustEnforceCursorAssoc && update.selectionSet && update.view.lineWrapping &&\n update.state.selection.main.empty && update.state.selection.main.assoc &&\n !update.state.facet(nativeSelectionHidden))\n this.mustEnforceCursorAssoc = true;\n }\n measure(view) {\n let dom = view.contentDOM, style = window.getComputedStyle(dom);\n let oracle = this.heightOracle;\n let whiteSpace = style.whiteSpace;\n this.defaultTextDirection = style.direction == \"rtl\" ? Direction.RTL : Direction.LTR;\n let refresh = this.heightOracle.mustRefreshForWrapping(whiteSpace);\n let domRect = dom.getBoundingClientRect();\n let measureContent = refresh || this.mustMeasureContent || this.contentDOMHeight != domRect.height;\n this.contentDOMHeight = domRect.height;\n this.mustMeasureContent = false;\n let result = 0, bias = 0;\n if (domRect.width && domRect.height) {\n let scaleX = domRect.width / dom.offsetWidth;\n let scaleY = domRect.height / dom.offsetHeight;\n if (scaleX > 0.995 && scaleX < 1.005 || !isFinite(scaleX) || Math.abs(domRect.width - dom.offsetWidth) < 1)\n scaleX = 1;\n if (scaleY > 0.995 && scaleY < 1.005 || !isFinite(scaleY) || Math.abs(domRect.height - dom.offsetHeight) < 1)\n scaleY = 1;\n if (this.scaleX != scaleX || this.scaleY != scaleY) {\n this.scaleX = scaleX;\n this.scaleY = scaleY;\n result |= 8 /* UpdateFlag.Geometry */;\n refresh = measureContent = true;\n }\n }\n // Vertical padding\n let paddingTop = (parseInt(style.paddingTop) || 0) * this.scaleY;\n let paddingBottom = (parseInt(style.paddingBottom) || 0) * this.scaleY;\n if (this.paddingTop != paddingTop || this.paddingBottom != paddingBottom) {\n this.paddingTop = paddingTop;\n this.paddingBottom = paddingBottom;\n result |= 8 /* UpdateFlag.Geometry */ | 2 /* UpdateFlag.Height */;\n }\n if (this.editorWidth != view.scrollDOM.clientWidth) {\n if (oracle.lineWrapping)\n measureContent = true;\n this.editorWidth = view.scrollDOM.clientWidth;\n result |= 8 /* UpdateFlag.Geometry */;\n }\n let scrollTop = view.scrollDOM.scrollTop * this.scaleY;\n if (this.scrollTop != scrollTop) {\n this.scrollAnchorHeight = -1;\n this.scrollTop = scrollTop;\n }\n this.scrolledToBottom = isScrolledToBottom(view.scrollDOM);\n // Pixel viewport\n let pixelViewport = (this.printing ? fullPixelRange : visiblePixelRange)(dom, this.paddingTop);\n let dTop = pixelViewport.top - this.pixelViewport.top, dBottom = pixelViewport.bottom - this.pixelViewport.bottom;\n this.pixelViewport = pixelViewport;\n let inView = this.pixelViewport.bottom > this.pixelViewport.top && this.pixelViewport.right > this.pixelViewport.left;\n if (inView != this.inView) {\n this.inView = inView;\n if (inView)\n measureContent = true;\n }\n if (!this.inView && !this.scrollTarget)\n return 0;\n let contentWidth = domRect.width;\n if (this.contentDOMWidth != contentWidth || this.editorHeight != view.scrollDOM.clientHeight) {\n this.contentDOMWidth = domRect.width;\n this.editorHeight = view.scrollDOM.clientHeight;\n result |= 8 /* UpdateFlag.Geometry */;\n }\n if (measureContent) {\n let lineHeights = view.docView.measureVisibleLineHeights(this.viewport);\n if (oracle.mustRefreshForHeights(lineHeights))\n refresh = true;\n if (refresh || oracle.lineWrapping && Math.abs(contentWidth - this.contentDOMWidth) > oracle.charWidth) {\n let { lineHeight, charWidth, textHeight } = view.docView.measureTextSize();\n refresh = lineHeight > 0 && oracle.refresh(whiteSpace, lineHeight, charWidth, textHeight, contentWidth / charWidth, lineHeights);\n if (refresh) {\n view.docView.minWidth = 0;\n result |= 8 /* UpdateFlag.Geometry */;\n }\n }\n if (dTop > 0 && dBottom > 0)\n bias = Math.max(dTop, dBottom);\n else if (dTop < 0 && dBottom < 0)\n bias = Math.min(dTop, dBottom);\n oracle.heightChanged = false;\n for (let vp of this.viewports) {\n let heights = vp.from == this.viewport.from ? lineHeights : view.docView.measureVisibleLineHeights(vp);\n this.heightMap = (refresh ? HeightMap.empty().applyChanges(this.stateDeco, Text.empty, this.heightOracle, [new ChangedRange(0, 0, 0, view.state.doc.length)]) : this.heightMap).updateHeight(oracle, 0, refresh, new MeasuredHeights(vp.from, heights));\n }\n if (oracle.heightChanged)\n result |= 2 /* UpdateFlag.Height */;\n }\n let viewportChange = !this.viewportIsAppropriate(this.viewport, bias) ||\n this.scrollTarget && (this.scrollTarget.range.head < this.viewport.from ||\n this.scrollTarget.range.head > this.viewport.to);\n if (viewportChange)\n this.viewport = this.getViewport(bias, this.scrollTarget);\n this.updateForViewport();\n if ((result & 2 /* UpdateFlag.Height */) || viewportChange)\n this.updateViewportLines();\n if (this.lineGaps.length || this.viewport.to - this.viewport.from > (2000 /* LG.Margin */ << 1))\n this.updateLineGaps(this.ensureLineGaps(refresh ? [] : this.lineGaps, view));\n result |= this.computeVisibleRanges();\n if (this.mustEnforceCursorAssoc) {\n this.mustEnforceCursorAssoc = false;\n // This is done in the read stage, because moving the selection\n // to a line end is going to trigger a layout anyway, so it\n // can't be a pure write. It should be rare that it does any\n // writing.\n view.docView.enforceCursorAssoc();\n }\n return result;\n }\n get visibleTop() { return this.scaler.fromDOM(this.pixelViewport.top); }\n get visibleBottom() { return this.scaler.fromDOM(this.pixelViewport.bottom); }\n getViewport(bias, scrollTarget) {\n // This will divide VP.Margin between the top and the\n // bottom, depending on the bias (the change in viewport position\n // since the last update). It'll hold a number between 0 and 1\n let marginTop = 0.5 - Math.max(-0.5, Math.min(0.5, bias / 1000 /* VP.Margin */ / 2));\n let map = this.heightMap, oracle = this.heightOracle;\n let { visibleTop, visibleBottom } = this;\n let viewport = new Viewport(map.lineAt(visibleTop - marginTop * 1000 /* VP.Margin */, QueryType.ByHeight, oracle, 0, 0).from, map.lineAt(visibleBottom + (1 - marginTop) * 1000 /* VP.Margin */, QueryType.ByHeight, oracle, 0, 0).to);\n // If scrollTarget is given, make sure the viewport includes that position\n if (scrollTarget) {\n let { head } = scrollTarget.range;\n if (head < viewport.from || head > viewport.to) {\n let viewHeight = Math.min(this.editorHeight, this.pixelViewport.bottom - this.pixelViewport.top);\n let block = map.lineAt(head, QueryType.ByPos, oracle, 0, 0), topPos;\n if (scrollTarget.y == \"center\")\n topPos = (block.top + block.bottom) / 2 - viewHeight / 2;\n else if (scrollTarget.y == \"start\" || scrollTarget.y == \"nearest\" && head < viewport.from)\n topPos = block.top;\n else\n topPos = block.bottom - viewHeight;\n viewport = new Viewport(map.lineAt(topPos - 1000 /* VP.Margin */ / 2, QueryType.ByHeight, oracle, 0, 0).from, map.lineAt(topPos + viewHeight + 1000 /* VP.Margin */ / 2, QueryType.ByHeight, oracle, 0, 0).to);\n }\n }\n return viewport;\n }\n mapViewport(viewport, changes) {\n let from = changes.mapPos(viewport.from, -1), to = changes.mapPos(viewport.to, 1);\n return new Viewport(this.heightMap.lineAt(from, QueryType.ByPos, this.heightOracle, 0, 0).from, this.heightMap.lineAt(to, QueryType.ByPos, this.heightOracle, 0, 0).to);\n }\n // Checks if a given viewport covers the visible part of the\n // document and not too much beyond that.\n viewportIsAppropriate({ from, to }, bias = 0) {\n if (!this.inView)\n return true;\n let { top } = this.heightMap.lineAt(from, QueryType.ByPos, this.heightOracle, 0, 0);\n let { bottom } = this.heightMap.lineAt(to, QueryType.ByPos, this.heightOracle, 0, 0);\n let { visibleTop, visibleBottom } = this;\n return (from == 0 || top <= visibleTop - Math.max(10 /* VP.MinCoverMargin */, Math.min(-bias, 250 /* VP.MaxCoverMargin */))) &&\n (to == this.state.doc.length ||\n bottom >= visibleBottom + Math.max(10 /* VP.MinCoverMargin */, Math.min(bias, 250 /* VP.MaxCoverMargin */))) &&\n (top > visibleTop - 2 * 1000 /* VP.Margin */ && bottom < visibleBottom + 2 * 1000 /* VP.Margin */);\n }\n mapLineGaps(gaps, changes) {\n if (!gaps.length || changes.empty)\n return gaps;\n let mapped = [];\n for (let gap of gaps)\n if (!changes.touchesRange(gap.from, gap.to))\n mapped.push(new LineGap(changes.mapPos(gap.from), changes.mapPos(gap.to), gap.size));\n return mapped;\n }\n // Computes positions in the viewport where the start or end of a\n // line should be hidden, trying to reuse existing line gaps when\n // appropriate to avoid unneccesary redraws.\n // Uses crude character-counting for the positioning and sizing,\n // since actual DOM coordinates aren't always available and\n // predictable. Relies on generous margins (see LG.Margin) to hide\n // the artifacts this might produce from the user.\n ensureLineGaps(current, mayMeasure) {\n let wrapping = this.heightOracle.lineWrapping;\n let margin = wrapping ? 10000 /* LG.MarginWrap */ : 2000 /* LG.Margin */, halfMargin = margin >> 1, doubleMargin = margin << 1;\n // The non-wrapping logic won't work at all in predominantly right-to-left text.\n if (this.defaultTextDirection != Direction.LTR && !wrapping)\n return [];\n let gaps = [];\n let addGap = (from, to, line, structure) => {\n if (to - from < halfMargin)\n return;\n let sel = this.state.selection.main, avoid = [sel.from];\n if (!sel.empty)\n avoid.push(sel.to);\n for (let pos of avoid) {\n if (pos > from && pos < to) {\n addGap(from, pos - 10 /* LG.SelectionMargin */, line, structure);\n addGap(pos + 10 /* LG.SelectionMargin */, to, line, structure);\n return;\n }\n }\n let gap = find(current, gap => gap.from >= line.from && gap.to <= line.to &&\n Math.abs(gap.from - from) < halfMargin && Math.abs(gap.to - to) < halfMargin &&\n !avoid.some(pos => gap.from < pos && gap.to > pos));\n if (!gap) {\n // When scrolling down, snap gap ends to line starts to avoid shifts in wrapping\n if (to < line.to && mayMeasure && wrapping &&\n mayMeasure.visibleRanges.some(r => r.from <= to && r.to >= to)) {\n let lineStart = mayMeasure.moveToLineBoundary(EditorSelection.cursor(to), false, true).head;\n if (lineStart > from)\n to = lineStart;\n }\n gap = new LineGap(from, to, this.gapSize(line, from, to, structure));\n }\n gaps.push(gap);\n };\n for (let line of this.viewportLines) {\n if (line.length < doubleMargin)\n continue;\n let structure = lineStructure(line.from, line.to, this.stateDeco);\n if (structure.total < doubleMargin)\n continue;\n let target = this.scrollTarget ? this.scrollTarget.range.head : null;\n let viewFrom, viewTo;\n if (wrapping) {\n let marginHeight = (margin / this.heightOracle.lineLength) * this.heightOracle.lineHeight;\n let top, bot;\n if (target != null) {\n let targetFrac = findFraction(structure, target);\n let spaceFrac = ((this.visibleBottom - this.visibleTop) / 2 + marginHeight) / line.height;\n top = targetFrac - spaceFrac;\n bot = targetFrac + spaceFrac;\n }\n else {\n top = (this.visibleTop - line.top - marginHeight) / line.height;\n bot = (this.visibleBottom - line.top + marginHeight) / line.height;\n }\n viewFrom = findPosition(structure, top);\n viewTo = findPosition(structure, bot);\n }\n else {\n let totalWidth = structure.total * this.heightOracle.charWidth;\n let marginWidth = margin * this.heightOracle.charWidth;\n let left, right;\n if (target != null) {\n let targetFrac = findFraction(structure, target);\n let spaceFrac = ((this.pixelViewport.right - this.pixelViewport.left) / 2 + marginWidth) / totalWidth;\n left = targetFrac - spaceFrac;\n right = targetFrac + spaceFrac;\n }\n else {\n left = (this.pixelViewport.left - marginWidth) / totalWidth;\n right = (this.pixelViewport.right + marginWidth) / totalWidth;\n }\n viewFrom = findPosition(structure, left);\n viewTo = findPosition(structure, right);\n }\n if (viewFrom > line.from)\n addGap(line.from, viewFrom, line, structure);\n if (viewTo < line.to)\n addGap(viewTo, line.to, line, structure);\n }\n return gaps;\n }\n gapSize(line, from, to, structure) {\n let fraction = findFraction(structure, to) - findFraction(structure, from);\n if (this.heightOracle.lineWrapping) {\n return line.height * fraction;\n }\n else {\n return structure.total * this.heightOracle.charWidth * fraction;\n }\n }\n updateLineGaps(gaps) {\n if (!LineGap.same(gaps, this.lineGaps)) {\n this.lineGaps = gaps;\n this.lineGapDeco = Decoration.set(gaps.map(gap => gap.draw(this, this.heightOracle.lineWrapping)));\n }\n }\n computeVisibleRanges() {\n let deco = this.stateDeco;\n if (this.lineGaps.length)\n deco = deco.concat(this.lineGapDeco);\n let ranges = [];\n RangeSet.spans(deco, this.viewport.from, this.viewport.to, {\n span(from, to) { ranges.push({ from, to }); },\n point() { }\n }, 20);\n let changed = ranges.length != this.visibleRanges.length ||\n this.visibleRanges.some((r, i) => r.from != ranges[i].from || r.to != ranges[i].to);\n this.visibleRanges = ranges;\n return changed ? 4 /* UpdateFlag.Viewport */ : 0;\n }\n lineBlockAt(pos) {\n return (pos >= this.viewport.from && pos <= this.viewport.to && this.viewportLines.find(b => b.from <= pos && b.to >= pos)) ||\n scaleBlock(this.heightMap.lineAt(pos, QueryType.ByPos, this.heightOracle, 0, 0), this.scaler);\n }\n lineBlockAtHeight(height) {\n return scaleBlock(this.heightMap.lineAt(this.scaler.fromDOM(height), QueryType.ByHeight, this.heightOracle, 0, 0), this.scaler);\n }\n scrollAnchorAt(scrollTop) {\n let block = this.lineBlockAtHeight(scrollTop + 8);\n return block.from >= this.viewport.from || this.viewportLines[0].top - scrollTop > 200 ? block : this.viewportLines[0];\n }\n elementAtHeight(height) {\n return scaleBlock(this.heightMap.blockAt(this.scaler.fromDOM(height), this.heightOracle, 0, 0), this.scaler);\n }\n get docHeight() {\n return this.scaler.toDOM(this.heightMap.height);\n }\n get contentHeight() {\n return this.docHeight + this.paddingTop + this.paddingBottom;\n }\n}\nclass Viewport {\n constructor(from, to) {\n this.from = from;\n this.to = to;\n }\n}\nfunction lineStructure(from, to, stateDeco) {\n let ranges = [], pos = from, total = 0;\n RangeSet.spans(stateDeco, from, to, {\n span() { },\n point(from, to) {\n if (from > pos) {\n ranges.push({ from: pos, to: from });\n total += from - pos;\n }\n pos = to;\n }\n }, 20); // We're only interested in collapsed ranges of a significant size\n if (pos < to) {\n ranges.push({ from: pos, to });\n total += to - pos;\n }\n return { total, ranges };\n}\nfunction findPosition({ total, ranges }, ratio) {\n if (ratio <= 0)\n return ranges[0].from;\n if (ratio >= 1)\n return ranges[ranges.length - 1].to;\n let dist = Math.floor(total * ratio);\n for (let i = 0;; i++) {\n let { from, to } = ranges[i], size = to - from;\n if (dist <= size)\n return from + dist;\n dist -= size;\n }\n}\nfunction findFraction(structure, pos) {\n let counted = 0;\n for (let { from, to } of structure.ranges) {\n if (pos <= to) {\n counted += pos - from;\n break;\n }\n counted += to - from;\n }\n return counted / structure.total;\n}\nfunction find(array, f) {\n for (let val of array)\n if (f(val))\n return val;\n return undefined;\n}\n// Don't scale when the document height is within the range of what\n// the DOM can handle.\nconst IdScaler = {\n toDOM(n) { return n; },\n fromDOM(n) { return n; },\n scale: 1\n};\n// When the height is too big (> VP.MaxDOMHeight), scale down the\n// regions outside the viewports so that the total height is\n// VP.MaxDOMHeight.\nclass BigScaler {\n constructor(oracle, heightMap, viewports) {\n let vpHeight = 0, base = 0, domBase = 0;\n this.viewports = viewports.map(({ from, to }) => {\n let top = heightMap.lineAt(from, QueryType.ByPos, oracle, 0, 0).top;\n let bottom = heightMap.lineAt(to, QueryType.ByPos, oracle, 0, 0).bottom;\n vpHeight += bottom - top;\n return { from, to, top, bottom, domTop: 0, domBottom: 0 };\n });\n this.scale = (7000000 /* VP.MaxDOMHeight */ - vpHeight) / (heightMap.height - vpHeight);\n for (let obj of this.viewports) {\n obj.domTop = domBase + (obj.top - base) * this.scale;\n domBase = obj.domBottom = obj.domTop + (obj.bottom - obj.top);\n base = obj.bottom;\n }\n }\n toDOM(n) {\n for (let i = 0, base = 0, domBase = 0;; i++) {\n let vp = i < this.viewports.length ? this.viewports[i] : null;\n if (!vp || n < vp.top)\n return domBase + (n - base) * this.scale;\n if (n <= vp.bottom)\n return vp.domTop + (n - vp.top);\n base = vp.bottom;\n domBase = vp.domBottom;\n }\n }\n fromDOM(n) {\n for (let i = 0, base = 0, domBase = 0;; i++) {\n let vp = i < this.viewports.length ? this.viewports[i] : null;\n if (!vp || n < vp.domTop)\n return base + (n - domBase) / this.scale;\n if (n <= vp.domBottom)\n return vp.top + (n - vp.domTop);\n base = vp.bottom;\n domBase = vp.domBottom;\n }\n }\n}\nfunction scaleBlock(block, scaler) {\n if (scaler.scale == 1)\n return block;\n let bTop = scaler.toDOM(block.top), bBottom = scaler.toDOM(block.bottom);\n return new BlockInfo(block.from, block.length, bTop, bBottom - bTop, Array.isArray(block._content) ? block._content.map(b => scaleBlock(b, scaler)) : block._content);\n}\n\nconst theme = /*@__PURE__*/Facet.define({ combine: strs => strs.join(\" \") });\nconst darkTheme = /*@__PURE__*/Facet.define({ combine: values => values.indexOf(true) > -1 });\nconst baseThemeID = /*@__PURE__*/StyleModule.newName(), baseLightID = /*@__PURE__*/StyleModule.newName(), baseDarkID = /*@__PURE__*/StyleModule.newName();\nconst lightDarkIDs = { \"&light\": \".\" + baseLightID, \"&dark\": \".\" + baseDarkID };\nfunction buildTheme(main, spec, scopes) {\n return new StyleModule(spec, {\n finish(sel) {\n return /&/.test(sel) ? sel.replace(/&\\w*/, m => {\n if (m == \"&\")\n return main;\n if (!scopes || !scopes[m])\n throw new RangeError(`Unsupported selector: ${m}`);\n return scopes[m];\n }) : main + \" \" + sel;\n }\n });\n}\nconst baseTheme$1 = /*@__PURE__*/buildTheme(\".\" + baseThemeID, {\n \"&\": {\n position: \"relative !important\",\n boxSizing: \"border-box\",\n \"&.cm-focused\": {\n // Provide a simple default outline to make sure a focused\n // editor is visually distinct. Can't leave the default behavior\n // because that will apply to the content element, which is\n // inside the scrollable container and doesn't include the\n // gutters. We also can't use an 'auto' outline, since those\n // are, for some reason, drawn behind the element content, which\n // will cause things like the active line background to cover\n // the outline (#297).\n outline: \"1px dotted #212121\"\n },\n display: \"flex !important\",\n flexDirection: \"column\"\n },\n \".cm-scroller\": {\n display: \"flex !important\",\n alignItems: \"flex-start !important\",\n fontFamily: \"monospace\",\n lineHeight: 1.4,\n height: \"100%\",\n overflowX: \"auto\",\n position: \"relative\",\n zIndex: 0\n },\n \".cm-content\": {\n margin: 0,\n flexGrow: 2,\n flexShrink: 0,\n display: \"block\",\n whiteSpace: \"pre\",\n wordWrap: \"normal\",\n boxSizing: \"border-box\",\n minHeight: \"100%\",\n padding: \"4px 0\",\n outline: \"none\",\n \"&[contenteditable=true]\": {\n WebkitUserModify: \"read-write-plaintext-only\",\n }\n },\n \".cm-lineWrapping\": {\n whiteSpace_fallback: \"pre-wrap\",\n whiteSpace: \"break-spaces\",\n wordBreak: \"break-word\",\n overflowWrap: \"anywhere\",\n flexShrink: 1\n },\n \"&light .cm-content\": { caretColor: \"black\" },\n \"&dark .cm-content\": { caretColor: \"white\" },\n \".cm-line\": {\n display: \"block\",\n padding: \"0 2px 0 6px\"\n },\n \".cm-layer\": {\n position: \"absolute\",\n left: 0,\n top: 0,\n contain: \"size style\",\n \"& > *\": {\n position: \"absolute\"\n }\n },\n \"&light .cm-selectionBackground\": {\n background: \"#d9d9d9\"\n },\n \"&dark .cm-selectionBackground\": {\n background: \"#222\"\n },\n \"&light.cm-focused > .cm-scroller > .cm-selectionLayer .cm-selectionBackground\": {\n background: \"#d7d4f0\"\n },\n \"&dark.cm-focused > .cm-scroller > .cm-selectionLayer .cm-selectionBackground\": {\n background: \"#233\"\n },\n \".cm-cursorLayer\": {\n pointerEvents: \"none\"\n },\n \"&.cm-focused > .cm-scroller > .cm-cursorLayer\": {\n animation: \"steps(1) cm-blink 1.2s infinite\"\n },\n // Two animations defined so that we can switch between them to\n // restart the animation without forcing another style\n // recomputation.\n \"@keyframes cm-blink\": { \"0%\": {}, \"50%\": { opacity: 0 }, \"100%\": {} },\n \"@keyframes cm-blink2\": { \"0%\": {}, \"50%\": { opacity: 0 }, \"100%\": {} },\n \".cm-cursor, .cm-dropCursor\": {\n borderLeft: \"1.2px solid black\",\n marginLeft: \"-0.6px\",\n pointerEvents: \"none\",\n },\n \".cm-cursor\": {\n display: \"none\"\n },\n \"&dark .cm-cursor\": {\n borderLeftColor: \"#444\"\n },\n \".cm-dropCursor\": {\n position: \"absolute\"\n },\n \"&.cm-focused > .cm-scroller > .cm-cursorLayer .cm-cursor\": {\n display: \"block\"\n },\n \"&light .cm-activeLine\": { backgroundColor: \"#cceeff44\" },\n \"&dark .cm-activeLine\": { backgroundColor: \"#99eeff33\" },\n \"&light .cm-specialChar\": { color: \"red\" },\n \"&dark .cm-specialChar\": { color: \"#f78\" },\n \".cm-gutters\": {\n flexShrink: 0,\n display: \"flex\",\n height: \"100%\",\n boxSizing: \"border-box\",\n insetInlineStart: 0,\n zIndex: 200\n },\n \"&light .cm-gutters\": {\n backgroundColor: \"#f5f5f5\",\n color: \"#6c6c6c\",\n borderRight: \"1px solid #ddd\"\n },\n \"&dark .cm-gutters\": {\n backgroundColor: \"#333338\",\n color: \"#ccc\"\n },\n \".cm-gutter\": {\n display: \"flex !important\",\n flexDirection: \"column\",\n flexShrink: 0,\n boxSizing: \"border-box\",\n minHeight: \"100%\",\n overflow: \"hidden\"\n },\n \".cm-gutterElement\": {\n boxSizing: \"border-box\"\n },\n \".cm-lineNumbers .cm-gutterElement\": {\n padding: \"0 3px 0 5px\",\n minWidth: \"20px\",\n textAlign: \"right\",\n whiteSpace: \"nowrap\"\n },\n \"&light .cm-activeLineGutter\": {\n backgroundColor: \"#e2f2ff\"\n },\n \"&dark .cm-activeLineGutter\": {\n backgroundColor: \"#222227\"\n },\n \".cm-panels\": {\n boxSizing: \"border-box\",\n position: \"sticky\",\n left: 0,\n right: 0\n },\n \"&light .cm-panels\": {\n backgroundColor: \"#f5f5f5\",\n color: \"black\"\n },\n \"&light .cm-panels-top\": {\n borderBottom: \"1px solid #ddd\"\n },\n \"&light .cm-panels-bottom\": {\n borderTop: \"1px solid #ddd\"\n },\n \"&dark .cm-panels\": {\n backgroundColor: \"#333338\",\n color: \"white\"\n },\n \".cm-tab\": {\n display: \"inline-block\",\n overflow: \"hidden\",\n verticalAlign: \"bottom\"\n },\n \".cm-widgetBuffer\": {\n verticalAlign: \"text-top\",\n height: \"1em\",\n width: 0,\n display: \"inline\"\n },\n \".cm-placeholder\": {\n color: \"#888\",\n display: \"inline-block\",\n verticalAlign: \"top\",\n },\n \".cm-highlightSpace:before\": {\n content: \"attr(data-display)\",\n position: \"absolute\",\n pointerEvents: \"none\",\n color: \"#888\"\n },\n \".cm-highlightTab\": {\n backgroundImage: `url('data:image/svg+xml,')`,\n backgroundSize: \"auto 100%\",\n backgroundPosition: \"right 90%\",\n backgroundRepeat: \"no-repeat\"\n },\n \".cm-trailingSpace\": {\n backgroundColor: \"#ff332255\"\n },\n \".cm-button\": {\n verticalAlign: \"middle\",\n color: \"inherit\",\n fontSize: \"70%\",\n padding: \".2em 1em\",\n borderRadius: \"1px\"\n },\n \"&light .cm-button\": {\n backgroundImage: \"linear-gradient(#eff1f5, #d9d9df)\",\n border: \"1px solid #888\",\n \"&:active\": {\n backgroundImage: \"linear-gradient(#b4b4b4, #d0d3d6)\"\n }\n },\n \"&dark .cm-button\": {\n backgroundImage: \"linear-gradient(#393939, #111)\",\n border: \"1px solid #888\",\n \"&:active\": {\n backgroundImage: \"linear-gradient(#111, #333)\"\n }\n },\n \".cm-textfield\": {\n verticalAlign: \"middle\",\n color: \"inherit\",\n fontSize: \"70%\",\n border: \"1px solid silver\",\n padding: \".2em .5em\"\n },\n \"&light .cm-textfield\": {\n backgroundColor: \"white\"\n },\n \"&dark .cm-textfield\": {\n border: \"1px solid #555\",\n backgroundColor: \"inherit\"\n }\n}, lightDarkIDs);\n\nconst LineBreakPlaceholder = \"\\uffff\";\nclass DOMReader {\n constructor(points, state) {\n this.points = points;\n this.text = \"\";\n this.lineSeparator = state.facet(EditorState.lineSeparator);\n }\n append(text) {\n this.text += text;\n }\n lineBreak() {\n this.text += LineBreakPlaceholder;\n }\n readRange(start, end) {\n if (!start)\n return this;\n let parent = start.parentNode;\n for (let cur = start;;) {\n this.findPointBefore(parent, cur);\n let oldLen = this.text.length;\n this.readNode(cur);\n let next = cur.nextSibling;\n if (next == end)\n break;\n let view = ContentView.get(cur), nextView = ContentView.get(next);\n if (view && nextView ? view.breakAfter :\n (view ? view.breakAfter : isBlockElement(cur)) ||\n (isBlockElement(next) && (cur.nodeName != \"BR\" || cur.cmIgnore) && this.text.length > oldLen))\n this.lineBreak();\n cur = next;\n }\n this.findPointBefore(parent, end);\n return this;\n }\n readTextNode(node) {\n let text = node.nodeValue;\n for (let point of this.points)\n if (point.node == node)\n point.pos = this.text.length + Math.min(point.offset, text.length);\n for (let off = 0, re = this.lineSeparator ? null : /\\r\\n?|\\n/g;;) {\n let nextBreak = -1, breakSize = 1, m;\n if (this.lineSeparator) {\n nextBreak = text.indexOf(this.lineSeparator, off);\n breakSize = this.lineSeparator.length;\n }\n else if (m = re.exec(text)) {\n nextBreak = m.index;\n breakSize = m[0].length;\n }\n this.append(text.slice(off, nextBreak < 0 ? text.length : nextBreak));\n if (nextBreak < 0)\n break;\n this.lineBreak();\n if (breakSize > 1)\n for (let point of this.points)\n if (point.node == node && point.pos > this.text.length)\n point.pos -= breakSize - 1;\n off = nextBreak + breakSize;\n }\n }\n readNode(node) {\n if (node.cmIgnore)\n return;\n let view = ContentView.get(node);\n let fromView = view && view.overrideDOMText;\n if (fromView != null) {\n this.findPointInside(node, fromView.length);\n for (let i = fromView.iter(); !i.next().done;) {\n if (i.lineBreak)\n this.lineBreak();\n else\n this.append(i.value);\n }\n }\n else if (node.nodeType == 3) {\n this.readTextNode(node);\n }\n else if (node.nodeName == \"BR\") {\n if (node.nextSibling)\n this.lineBreak();\n }\n else if (node.nodeType == 1) {\n this.readRange(node.firstChild, null);\n }\n }\n findPointBefore(node, next) {\n for (let point of this.points)\n if (point.node == node && node.childNodes[point.offset] == next)\n point.pos = this.text.length;\n }\n findPointInside(node, length) {\n for (let point of this.points)\n if (node.nodeType == 3 ? point.node == node : node.contains(point.node))\n point.pos = this.text.length + (isAtEnd(node, point.node, point.offset) ? length : 0);\n }\n}\nfunction isAtEnd(parent, node, offset) {\n for (;;) {\n if (!node || offset < maxOffset(node))\n return false;\n if (node == parent)\n return true;\n offset = domIndex(node) + 1;\n node = node.parentNode;\n }\n}\nfunction isBlockElement(node) {\n return node.nodeType == 1 && /^(DIV|P|LI|UL|OL|BLOCKQUOTE|DD|DT|H\\d|SECTION|PRE)$/.test(node.nodeName);\n}\nclass DOMPoint {\n constructor(node, offset) {\n this.node = node;\n this.offset = offset;\n this.pos = -1;\n }\n}\n\nclass DOMChange {\n constructor(view, start, end, typeOver) {\n this.typeOver = typeOver;\n this.bounds = null;\n this.text = \"\";\n let { impreciseHead: iHead, impreciseAnchor: iAnchor } = view.docView;\n if (view.state.readOnly && start > -1) {\n // Ignore changes when the editor is read-only\n this.newSel = null;\n }\n else if (start > -1 && (this.bounds = view.docView.domBoundsAround(start, end, 0))) {\n let selPoints = iHead || iAnchor ? [] : selectionPoints(view);\n let reader = new DOMReader(selPoints, view.state);\n reader.readRange(this.bounds.startDOM, this.bounds.endDOM);\n this.text = reader.text;\n this.newSel = selectionFromPoints(selPoints, this.bounds.from);\n }\n else {\n let domSel = view.observer.selectionRange;\n let head = iHead && iHead.node == domSel.focusNode && iHead.offset == domSel.focusOffset ||\n !contains(view.contentDOM, domSel.focusNode)\n ? view.state.selection.main.head\n : view.docView.posFromDOM(domSel.focusNode, domSel.focusOffset);\n let anchor = iAnchor && iAnchor.node == domSel.anchorNode && iAnchor.offset == domSel.anchorOffset ||\n !contains(view.contentDOM, domSel.anchorNode)\n ? view.state.selection.main.anchor\n : view.docView.posFromDOM(domSel.anchorNode, domSel.anchorOffset);\n this.newSel = EditorSelection.single(anchor, head);\n }\n }\n}\nfunction applyDOMChange(view, domChange) {\n let change;\n let { newSel } = domChange, sel = view.state.selection.main;\n let lastKey = view.inputState.lastKeyTime > Date.now() - 100 ? view.inputState.lastKeyCode : -1;\n if (domChange.bounds) {\n let { from, to } = domChange.bounds;\n let preferredPos = sel.from, preferredSide = null;\n // Prefer anchoring to end when Backspace is pressed (or, on\n // Android, when something was deleted)\n if (lastKey === 8 || browser.android && domChange.text.length < to - from) {\n preferredPos = sel.to;\n preferredSide = \"end\";\n }\n let diff = findDiff(view.state.doc.sliceString(from, to, LineBreakPlaceholder), domChange.text, preferredPos - from, preferredSide);\n if (diff) {\n // Chrome inserts two newlines when pressing shift-enter at the\n // end of a line. DomChange drops one of those.\n if (browser.chrome && lastKey == 13 &&\n diff.toB == diff.from + 2 && domChange.text.slice(diff.from, diff.toB) == LineBreakPlaceholder + LineBreakPlaceholder)\n diff.toB--;\n change = { from: from + diff.from, to: from + diff.toA,\n insert: Text.of(domChange.text.slice(diff.from, diff.toB).split(LineBreakPlaceholder)) };\n }\n }\n else if (newSel && (!view.hasFocus && view.state.facet(editable) || newSel.main.eq(sel))) {\n newSel = null;\n }\n if (!change && !newSel)\n return false;\n if (!change && domChange.typeOver && !sel.empty && newSel && newSel.main.empty) {\n // Heuristic to notice typing over a selected character\n change = { from: sel.from, to: sel.to, insert: view.state.doc.slice(sel.from, sel.to) };\n }\n else if (change && change.from >= sel.from && change.to <= sel.to &&\n (change.from != sel.from || change.to != sel.to) &&\n (sel.to - sel.from) - (change.to - change.from) <= 4) {\n // If the change is inside the selection and covers most of it,\n // assume it is a selection replace (with identical characters at\n // the start/end not included in the diff)\n change = {\n from: sel.from, to: sel.to,\n insert: view.state.doc.slice(sel.from, change.from).append(change.insert).append(view.state.doc.slice(change.to, sel.to))\n };\n }\n else if ((browser.mac || browser.android) && change && change.from == change.to && change.from == sel.head - 1 &&\n /^\\. ?$/.test(change.insert.toString()) && view.contentDOM.getAttribute(\"autocorrect\") == \"off\") {\n // Detect insert-period-on-double-space Mac and Android behavior,\n // and transform it into a regular space insert.\n if (newSel && change.insert.length == 2)\n newSel = EditorSelection.single(newSel.main.anchor - 1, newSel.main.head - 1);\n change = { from: sel.from, to: sel.to, insert: Text.of([\" \"]) };\n }\n else if (browser.chrome && change && change.from == change.to && change.from == sel.head &&\n change.insert.toString() == \"\\n \" && view.lineWrapping) {\n // In Chrome, if you insert a space at the start of a wrapped\n // line, it will actually insert a newline and a space, causing a\n // bogus new line to be created in CodeMirror (#968)\n if (newSel)\n newSel = EditorSelection.single(newSel.main.anchor - 1, newSel.main.head - 1);\n change = { from: sel.from, to: sel.to, insert: Text.of([\" \"]) };\n }\n if (change) {\n if (browser.ios && view.inputState.flushIOSKey())\n return true;\n // Android browsers don't fire reasonable key events for enter,\n // backspace, or delete. So this detects changes that look like\n // they're caused by those keys, and reinterprets them as key\n // events. (Some of these keys are also handled by beforeinput\n // events and the pendingAndroidKey mechanism, but that's not\n // reliable in all situations.)\n if (browser.android &&\n ((change.from == sel.from && change.to == sel.to &&\n change.insert.length == 1 && change.insert.lines == 2 &&\n dispatchKey(view.contentDOM, \"Enter\", 13)) ||\n ((change.from == sel.from - 1 && change.to == sel.to && change.insert.length == 0 ||\n lastKey == 8 && change.insert.length < change.to - change.from && change.to > sel.head) &&\n dispatchKey(view.contentDOM, \"Backspace\", 8)) ||\n (change.from == sel.from && change.to == sel.to + 1 && change.insert.length == 0 &&\n dispatchKey(view.contentDOM, \"Delete\", 46))))\n return true;\n let text = change.insert.toString();\n if (view.inputState.composing >= 0)\n view.inputState.composing++;\n let defaultTr;\n let defaultInsert = () => defaultTr || (defaultTr = applyDefaultInsert(view, change, newSel));\n if (!view.state.facet(inputHandler).some(h => h(view, change.from, change.to, text, defaultInsert)))\n view.dispatch(defaultInsert());\n return true;\n }\n else if (newSel && !newSel.main.eq(sel)) {\n let scrollIntoView = false, userEvent = \"select\";\n if (view.inputState.lastSelectionTime > Date.now() - 50) {\n if (view.inputState.lastSelectionOrigin == \"select\")\n scrollIntoView = true;\n userEvent = view.inputState.lastSelectionOrigin;\n }\n view.dispatch({ selection: newSel, scrollIntoView, userEvent });\n return true;\n }\n else {\n return false;\n }\n}\nfunction applyDefaultInsert(view, change, newSel) {\n let tr, startState = view.state, sel = startState.selection.main;\n if (change.from >= sel.from && change.to <= sel.to && change.to - change.from >= (sel.to - sel.from) / 3 &&\n (!newSel || newSel.main.empty && newSel.main.from == change.from + change.insert.length) &&\n view.inputState.composing < 0) {\n let before = sel.from < change.from ? startState.sliceDoc(sel.from, change.from) : \"\";\n let after = sel.to > change.to ? startState.sliceDoc(change.to, sel.to) : \"\";\n tr = startState.replaceSelection(view.state.toText(before + change.insert.sliceString(0, undefined, view.state.lineBreak) + after));\n }\n else {\n let changes = startState.changes(change);\n let mainSel = newSel && newSel.main.to <= changes.newLength ? newSel.main : undefined;\n // Try to apply a composition change to all cursors\n if (startState.selection.ranges.length > 1 && view.inputState.composing >= 0 &&\n change.to <= sel.to && change.to >= sel.to - 10) {\n let replaced = view.state.sliceDoc(change.from, change.to);\n let compositionRange, composition = newSel && findCompositionNode(view, newSel.main.head);\n if (composition) {\n let dLen = change.insert.length - (change.to - change.from);\n compositionRange = { from: composition.from, to: composition.to - dLen };\n }\n else {\n compositionRange = view.state.doc.lineAt(sel.head);\n }\n let offset = sel.to - change.to, size = sel.to - sel.from;\n tr = startState.changeByRange(range => {\n if (range.from == sel.from && range.to == sel.to)\n return { changes, range: mainSel || range.map(changes) };\n let to = range.to - offset, from = to - replaced.length;\n if (range.to - range.from != size || view.state.sliceDoc(from, to) != replaced ||\n // Unfortunately, there's no way to make multiple\n // changes in the same node work without aborting\n // composition, so cursors in the composition range are\n // ignored.\n range.to >= compositionRange.from && range.from <= compositionRange.to)\n return { range };\n let rangeChanges = startState.changes({ from, to, insert: change.insert }), selOff = range.to - sel.to;\n return {\n changes: rangeChanges,\n range: !mainSel ? range.map(rangeChanges) :\n EditorSelection.range(Math.max(0, mainSel.anchor + selOff), Math.max(0, mainSel.head + selOff))\n };\n });\n }\n else {\n tr = {\n changes,\n selection: mainSel && startState.selection.replaceRange(mainSel)\n };\n }\n }\n let userEvent = \"input.type\";\n if (view.composing ||\n view.inputState.compositionPendingChange && view.inputState.compositionEndedAt > Date.now() - 50) {\n view.inputState.compositionPendingChange = false;\n userEvent += \".compose\";\n if (view.inputState.compositionFirstChange) {\n userEvent += \".start\";\n view.inputState.compositionFirstChange = false;\n }\n }\n return startState.update(tr, { userEvent, scrollIntoView: true });\n}\nfunction findDiff(a, b, preferredPos, preferredSide) {\n let minLen = Math.min(a.length, b.length);\n let from = 0;\n while (from < minLen && a.charCodeAt(from) == b.charCodeAt(from))\n from++;\n if (from == minLen && a.length == b.length)\n return null;\n let toA = a.length, toB = b.length;\n while (toA > 0 && toB > 0 && a.charCodeAt(toA - 1) == b.charCodeAt(toB - 1)) {\n toA--;\n toB--;\n }\n if (preferredSide == \"end\") {\n let adjust = Math.max(0, from - Math.min(toA, toB));\n preferredPos -= toA + adjust - from;\n }\n if (toA < from && a.length < b.length) {\n let move = preferredPos <= from && preferredPos >= toA ? from - preferredPos : 0;\n from -= move;\n toB = from + (toB - toA);\n toA = from;\n }\n else if (toB < from) {\n let move = preferredPos <= from && preferredPos >= toB ? from - preferredPos : 0;\n from -= move;\n toA = from + (toA - toB);\n toB = from;\n }\n return { from, toA, toB };\n}\nfunction selectionPoints(view) {\n let result = [];\n if (view.root.activeElement != view.contentDOM)\n return result;\n let { anchorNode, anchorOffset, focusNode, focusOffset } = view.observer.selectionRange;\n if (anchorNode) {\n result.push(new DOMPoint(anchorNode, anchorOffset));\n if (focusNode != anchorNode || focusOffset != anchorOffset)\n result.push(new DOMPoint(focusNode, focusOffset));\n }\n return result;\n}\nfunction selectionFromPoints(points, base) {\n if (points.length == 0)\n return null;\n let anchor = points[0].pos, head = points.length == 2 ? points[1].pos : anchor;\n return anchor > -1 && head > -1 ? EditorSelection.single(anchor + base, head + base) : null;\n}\n\nconst observeOptions = {\n childList: true,\n characterData: true,\n subtree: true,\n attributes: true,\n characterDataOldValue: true\n};\n// IE11 has very broken mutation observers, so we also listen to\n// DOMCharacterDataModified there\nconst useCharData = browser.ie && browser.ie_version <= 11;\nclass DOMObserver {\n constructor(view) {\n this.view = view;\n this.active = false;\n // The known selection. Kept in our own object, as opposed to just\n // directly accessing the selection because:\n // - Safari doesn't report the right selection in shadow DOM\n // - Reading from the selection forces a DOM layout\n // - This way, we can ignore selectionchange events if we have\n // already seen the 'new' selection\n this.selectionRange = new DOMSelectionState;\n // Set when a selection change is detected, cleared on flush\n this.selectionChanged = false;\n this.delayedFlush = -1;\n this.resizeTimeout = -1;\n this.queue = [];\n this.delayedAndroidKey = null;\n this.flushingAndroidKey = -1;\n this.lastChange = 0;\n this.scrollTargets = [];\n this.intersection = null;\n this.resizeScroll = null;\n this.intersecting = false;\n this.gapIntersection = null;\n this.gaps = [];\n // Timeout for scheduling check of the parents that need scroll handlers\n this.parentCheck = -1;\n this.dom = view.contentDOM;\n this.observer = new MutationObserver(mutations => {\n for (let mut of mutations)\n this.queue.push(mut);\n // IE11 will sometimes (on typing over a selection or\n // backspacing out a single character text node) call the\n // observer callback before actually updating the DOM.\n //\n // Unrelatedly, iOS Safari will, when ending a composition,\n // sometimes first clear it, deliver the mutations, and then\n // reinsert the finished text. CodeMirror's handling of the\n // deletion will prevent the reinsertion from happening,\n // breaking composition.\n if ((browser.ie && browser.ie_version <= 11 || browser.ios && view.composing) &&\n mutations.some(m => m.type == \"childList\" && m.removedNodes.length ||\n m.type == \"characterData\" && m.oldValue.length > m.target.nodeValue.length))\n this.flushSoon();\n else\n this.flush();\n });\n if (useCharData)\n this.onCharData = (event) => {\n this.queue.push({ target: event.target,\n type: \"characterData\",\n oldValue: event.prevValue });\n this.flushSoon();\n };\n this.onSelectionChange = this.onSelectionChange.bind(this);\n this.onResize = this.onResize.bind(this);\n this.onPrint = this.onPrint.bind(this);\n this.onScroll = this.onScroll.bind(this);\n if (typeof ResizeObserver == \"function\") {\n this.resizeScroll = new ResizeObserver(() => {\n var _a;\n if (((_a = this.view.docView) === null || _a === void 0 ? void 0 : _a.lastUpdate) < Date.now() - 75)\n this.onResize();\n });\n this.resizeScroll.observe(view.scrollDOM);\n }\n this.addWindowListeners(this.win = view.win);\n this.start();\n if (typeof IntersectionObserver == \"function\") {\n this.intersection = new IntersectionObserver(entries => {\n if (this.parentCheck < 0)\n this.parentCheck = setTimeout(this.listenForScroll.bind(this), 1000);\n if (entries.length > 0 && (entries[entries.length - 1].intersectionRatio > 0) != this.intersecting) {\n this.intersecting = !this.intersecting;\n if (this.intersecting != this.view.inView)\n this.onScrollChanged(document.createEvent(\"Event\"));\n }\n }, { threshold: [0, .001] });\n this.intersection.observe(this.dom);\n this.gapIntersection = new IntersectionObserver(entries => {\n if (entries.length > 0 && entries[entries.length - 1].intersectionRatio > 0)\n this.onScrollChanged(document.createEvent(\"Event\"));\n }, {});\n }\n this.listenForScroll();\n this.readSelectionRange();\n }\n onScrollChanged(e) {\n this.view.inputState.runHandlers(\"scroll\", e);\n if (this.intersecting)\n this.view.measure();\n }\n onScroll(e) {\n if (this.intersecting)\n this.flush(false);\n this.onScrollChanged(e);\n }\n onResize() {\n if (this.resizeTimeout < 0)\n this.resizeTimeout = setTimeout(() => {\n this.resizeTimeout = -1;\n this.view.requestMeasure();\n }, 50);\n }\n onPrint() {\n this.view.viewState.printing = true;\n this.view.measure();\n setTimeout(() => {\n this.view.viewState.printing = false;\n this.view.requestMeasure();\n }, 500);\n }\n updateGaps(gaps) {\n if (this.gapIntersection && (gaps.length != this.gaps.length || this.gaps.some((g, i) => g != gaps[i]))) {\n this.gapIntersection.disconnect();\n for (let gap of gaps)\n this.gapIntersection.observe(gap);\n this.gaps = gaps;\n }\n }\n onSelectionChange(event) {\n let wasChanged = this.selectionChanged;\n if (!this.readSelectionRange() || this.delayedAndroidKey)\n return;\n let { view } = this, sel = this.selectionRange;\n if (view.state.facet(editable) ? view.root.activeElement != this.dom : !hasSelection(view.dom, sel))\n return;\n let context = sel.anchorNode && view.docView.nearest(sel.anchorNode);\n if (context && context.ignoreEvent(event)) {\n if (!wasChanged)\n this.selectionChanged = false;\n return;\n }\n // Deletions on IE11 fire their events in the wrong order, giving\n // us a selection change event before the DOM changes are\n // reported.\n // Chrome Android has a similar issue when backspacing out a\n // selection (#645).\n if ((browser.ie && browser.ie_version <= 11 || browser.android && browser.chrome) && !view.state.selection.main.empty &&\n // (Selection.isCollapsed isn't reliable on IE)\n sel.focusNode && isEquivalentPosition(sel.focusNode, sel.focusOffset, sel.anchorNode, sel.anchorOffset))\n this.flushSoon();\n else\n this.flush(false);\n }\n readSelectionRange() {\n let { view } = this;\n // The Selection object is broken in shadow roots in Safari. See\n // https://github.com/codemirror/dev/issues/414\n let range = browser.safari && view.root.nodeType == 11 &&\n deepActiveElement(this.dom.ownerDocument) == this.dom &&\n safariSelectionRangeHack(this.view) || getSelection(view.root);\n if (!range || this.selectionRange.eq(range))\n return false;\n let local = hasSelection(this.dom, range);\n // Detect the situation where the browser has, on focus, moved the\n // selection to the start of the content element. Reset it to the\n // position from the editor state.\n if (local && !this.selectionChanged &&\n view.inputState.lastFocusTime > Date.now() - 200 &&\n view.inputState.lastTouchTime < Date.now() - 300 &&\n atElementStart(this.dom, range)) {\n this.view.inputState.lastFocusTime = 0;\n view.docView.updateSelection();\n return false;\n }\n this.selectionRange.setRange(range);\n if (local)\n this.selectionChanged = true;\n return true;\n }\n setSelectionRange(anchor, head) {\n this.selectionRange.set(anchor.node, anchor.offset, head.node, head.offset);\n this.selectionChanged = false;\n }\n clearSelectionRange() {\n this.selectionRange.set(null, 0, null, 0);\n }\n listenForScroll() {\n this.parentCheck = -1;\n let i = 0, changed = null;\n for (let dom = this.dom; dom;) {\n if (dom.nodeType == 1) {\n if (!changed && i < this.scrollTargets.length && this.scrollTargets[i] == dom)\n i++;\n else if (!changed)\n changed = this.scrollTargets.slice(0, i);\n if (changed)\n changed.push(dom);\n dom = dom.assignedSlot || dom.parentNode;\n }\n else if (dom.nodeType == 11) { // Shadow root\n dom = dom.host;\n }\n else {\n break;\n }\n }\n if (i < this.scrollTargets.length && !changed)\n changed = this.scrollTargets.slice(0, i);\n if (changed) {\n for (let dom of this.scrollTargets)\n dom.removeEventListener(\"scroll\", this.onScroll);\n for (let dom of this.scrollTargets = changed)\n dom.addEventListener(\"scroll\", this.onScroll);\n }\n }\n ignore(f) {\n if (!this.active)\n return f();\n try {\n this.stop();\n return f();\n }\n finally {\n this.start();\n this.clear();\n }\n }\n start() {\n if (this.active)\n return;\n this.observer.observe(this.dom, observeOptions);\n if (useCharData)\n this.dom.addEventListener(\"DOMCharacterDataModified\", this.onCharData);\n this.active = true;\n }\n stop() {\n if (!this.active)\n return;\n this.active = false;\n this.observer.disconnect();\n if (useCharData)\n this.dom.removeEventListener(\"DOMCharacterDataModified\", this.onCharData);\n }\n // Throw away any pending changes\n clear() {\n this.processRecords();\n this.queue.length = 0;\n this.selectionChanged = false;\n }\n // Chrome Android, especially in combination with GBoard, not only\n // doesn't reliably fire regular key events, but also often\n // surrounds the effect of enter or backspace with a bunch of\n // composition events that, when interrupted, cause text duplication\n // or other kinds of corruption. This hack makes the editor back off\n // from handling DOM changes for a moment when such a key is\n // detected (via beforeinput or keydown), and then tries to flush\n // them or, if that has no effect, dispatches the given key.\n delayAndroidKey(key, keyCode) {\n var _a;\n if (!this.delayedAndroidKey) {\n let flush = () => {\n let key = this.delayedAndroidKey;\n if (key) {\n this.clearDelayedAndroidKey();\n this.view.inputState.lastKeyCode = key.keyCode;\n this.view.inputState.lastKeyTime = Date.now();\n let flushed = this.flush();\n if (!flushed && key.force)\n dispatchKey(this.dom, key.key, key.keyCode);\n }\n };\n this.flushingAndroidKey = this.view.win.requestAnimationFrame(flush);\n }\n // Since backspace beforeinput is sometimes signalled spuriously,\n // Enter always takes precedence.\n if (!this.delayedAndroidKey || key == \"Enter\")\n this.delayedAndroidKey = {\n key, keyCode,\n // Only run the key handler when no changes are detected if\n // this isn't coming right after another change, in which case\n // it is probably part of a weird chain of updates, and should\n // be ignored if it returns the DOM to its previous state.\n force: this.lastChange < Date.now() - 50 || !!((_a = this.delayedAndroidKey) === null || _a === void 0 ? void 0 : _a.force)\n };\n }\n clearDelayedAndroidKey() {\n this.win.cancelAnimationFrame(this.flushingAndroidKey);\n this.delayedAndroidKey = null;\n this.flushingAndroidKey = -1;\n }\n flushSoon() {\n if (this.delayedFlush < 0)\n this.delayedFlush = this.view.win.requestAnimationFrame(() => { this.delayedFlush = -1; this.flush(); });\n }\n forceFlush() {\n if (this.delayedFlush >= 0) {\n this.view.win.cancelAnimationFrame(this.delayedFlush);\n this.delayedFlush = -1;\n }\n this.flush();\n }\n pendingRecords() {\n for (let mut of this.observer.takeRecords())\n this.queue.push(mut);\n return this.queue;\n }\n processRecords() {\n let records = this.pendingRecords();\n if (records.length)\n this.queue = [];\n let from = -1, to = -1, typeOver = false;\n for (let record of records) {\n let range = this.readMutation(record);\n if (!range)\n continue;\n if (range.typeOver)\n typeOver = true;\n if (from == -1) {\n ({ from, to } = range);\n }\n else {\n from = Math.min(range.from, from);\n to = Math.max(range.to, to);\n }\n }\n return { from, to, typeOver };\n }\n readChange() {\n let { from, to, typeOver } = this.processRecords();\n let newSel = this.selectionChanged && hasSelection(this.dom, this.selectionRange);\n if (from < 0 && !newSel)\n return null;\n if (from > -1)\n this.lastChange = Date.now();\n this.view.inputState.lastFocusTime = 0;\n this.selectionChanged = false;\n let change = new DOMChange(this.view, from, to, typeOver);\n this.view.docView.domChanged = { newSel: change.newSel ? change.newSel.main : null };\n return change;\n }\n // Apply pending changes, if any\n flush(readSelection = true) {\n // Completely hold off flushing when pending keys are set—the code\n // managing those will make sure processRecords is called and the\n // view is resynchronized after\n if (this.delayedFlush >= 0 || this.delayedAndroidKey)\n return false;\n if (readSelection)\n this.readSelectionRange();\n let domChange = this.readChange();\n if (!domChange) {\n this.view.requestMeasure();\n return false;\n }\n let startState = this.view.state;\n let handled = applyDOMChange(this.view, domChange);\n // The view wasn't updated\n if (this.view.state == startState)\n this.view.update([]);\n return handled;\n }\n readMutation(rec) {\n let cView = this.view.docView.nearest(rec.target);\n if (!cView || cView.ignoreMutation(rec))\n return null;\n cView.markDirty(rec.type == \"attributes\");\n if (rec.type == \"attributes\")\n cView.flags |= 4 /* ViewFlag.AttrsDirty */;\n if (rec.type == \"childList\") {\n let childBefore = findChild(cView, rec.previousSibling || rec.target.previousSibling, -1);\n let childAfter = findChild(cView, rec.nextSibling || rec.target.nextSibling, 1);\n return { from: childBefore ? cView.posAfter(childBefore) : cView.posAtStart,\n to: childAfter ? cView.posBefore(childAfter) : cView.posAtEnd, typeOver: false };\n }\n else if (rec.type == \"characterData\") {\n return { from: cView.posAtStart, to: cView.posAtEnd, typeOver: rec.target.nodeValue == rec.oldValue };\n }\n else {\n return null;\n }\n }\n setWindow(win) {\n if (win != this.win) {\n this.removeWindowListeners(this.win);\n this.win = win;\n this.addWindowListeners(this.win);\n }\n }\n addWindowListeners(win) {\n win.addEventListener(\"resize\", this.onResize);\n win.addEventListener(\"beforeprint\", this.onPrint);\n win.addEventListener(\"scroll\", this.onScroll);\n win.document.addEventListener(\"selectionchange\", this.onSelectionChange);\n }\n removeWindowListeners(win) {\n win.removeEventListener(\"scroll\", this.onScroll);\n win.removeEventListener(\"resize\", this.onResize);\n win.removeEventListener(\"beforeprint\", this.onPrint);\n win.document.removeEventListener(\"selectionchange\", this.onSelectionChange);\n }\n destroy() {\n var _a, _b, _c;\n this.stop();\n (_a = this.intersection) === null || _a === void 0 ? void 0 : _a.disconnect();\n (_b = this.gapIntersection) === null || _b === void 0 ? void 0 : _b.disconnect();\n (_c = this.resizeScroll) === null || _c === void 0 ? void 0 : _c.disconnect();\n for (let dom of this.scrollTargets)\n dom.removeEventListener(\"scroll\", this.onScroll);\n this.removeWindowListeners(this.win);\n clearTimeout(this.parentCheck);\n clearTimeout(this.resizeTimeout);\n this.win.cancelAnimationFrame(this.delayedFlush);\n this.win.cancelAnimationFrame(this.flushingAndroidKey);\n }\n}\nfunction findChild(cView, dom, dir) {\n while (dom) {\n let curView = ContentView.get(dom);\n if (curView && curView.parent == cView)\n return curView;\n let parent = dom.parentNode;\n dom = parent != cView.dom ? parent : dir > 0 ? dom.nextSibling : dom.previousSibling;\n }\n return null;\n}\n// Used to work around a Safari Selection/shadow DOM bug (#414)\nfunction safariSelectionRangeHack(view) {\n let found = null;\n // Because Safari (at least in 2018-2021) doesn't provide regular\n // access to the selection inside a shadowroot, we have to perform a\n // ridiculous hack to get at it—using `execCommand` to trigger a\n // `beforeInput` event so that we can read the target range from the\n // event.\n function read(event) {\n event.preventDefault();\n event.stopImmediatePropagation();\n found = event.getTargetRanges()[0];\n }\n view.contentDOM.addEventListener(\"beforeinput\", read, true);\n view.dom.ownerDocument.execCommand(\"indent\");\n view.contentDOM.removeEventListener(\"beforeinput\", read, true);\n if (!found)\n return null;\n let anchorNode = found.startContainer, anchorOffset = found.startOffset;\n let focusNode = found.endContainer, focusOffset = found.endOffset;\n let curAnchor = view.docView.domAtPos(view.state.selection.main.anchor);\n // Since such a range doesn't distinguish between anchor and head,\n // use a heuristic that flips it around if its end matches the\n // current anchor.\n if (isEquivalentPosition(curAnchor.node, curAnchor.offset, focusNode, focusOffset))\n [anchorNode, anchorOffset, focusNode, focusOffset] = [focusNode, focusOffset, anchorNode, anchorOffset];\n return { anchorNode, anchorOffset, focusNode, focusOffset };\n}\n\n// The editor's update state machine looks something like this:\n//\n// Idle → Updating ⇆ Idle (unchecked) → Measuring → Idle\n// ↑ ↓\n// Updating (measure)\n//\n// The difference between 'Idle' and 'Idle (unchecked)' lies in\n// whether a layout check has been scheduled. A regular update through\n// the `update` method updates the DOM in a write-only fashion, and\n// relies on a check (scheduled with `requestAnimationFrame`) to make\n// sure everything is where it should be and the viewport covers the\n// visible code. That check continues to measure and then optionally\n// update until it reaches a coherent state.\n/**\nAn editor view represents the editor's user interface. It holds\nthe editable DOM surface, and possibly other elements such as the\nline number gutter. It handles events and dispatches state\ntransactions for editing actions.\n*/\nclass EditorView {\n /**\n The current editor state.\n */\n get state() { return this.viewState.state; }\n /**\n To be able to display large documents without consuming too much\n memory or overloading the browser, CodeMirror only draws the\n code that is visible (plus a margin around it) to the DOM. This\n property tells you the extent of the current drawn viewport, in\n document positions.\n */\n get viewport() { return this.viewState.viewport; }\n /**\n When there are, for example, large collapsed ranges in the\n viewport, its size can be a lot bigger than the actual visible\n content. Thus, if you are doing something like styling the\n content in the viewport, it is preferable to only do so for\n these ranges, which are the subset of the viewport that is\n actually drawn.\n */\n get visibleRanges() { return this.viewState.visibleRanges; }\n /**\n Returns false when the editor is entirely scrolled out of view\n or otherwise hidden.\n */\n get inView() { return this.viewState.inView; }\n /**\n Indicates whether the user is currently composing text via\n [IME](https://en.wikipedia.org/wiki/Input_method), and at least\n one change has been made in the current composition.\n */\n get composing() { return this.inputState.composing > 0; }\n /**\n Indicates whether the user is currently in composing state. Note\n that on some platforms, like Android, this will be the case a\n lot, since just putting the cursor on a word starts a\n composition there.\n */\n get compositionStarted() { return this.inputState.composing >= 0; }\n /**\n The document or shadow root that the view lives in.\n */\n get root() { return this._root; }\n /**\n @internal\n */\n get win() { return this.dom.ownerDocument.defaultView || window; }\n /**\n Construct a new view. You'll want to either provide a `parent`\n option, or put `view.dom` into your document after creating a\n view, so that the user can see the editor.\n */\n constructor(config = {}) {\n this.plugins = [];\n this.pluginMap = new Map;\n this.editorAttrs = {};\n this.contentAttrs = {};\n this.bidiCache = [];\n this.destroyed = false;\n /**\n @internal\n */\n this.updateState = 2 /* UpdateState.Updating */;\n /**\n @internal\n */\n this.measureScheduled = -1;\n /**\n @internal\n */\n this.measureRequests = [];\n this.contentDOM = document.createElement(\"div\");\n this.scrollDOM = document.createElement(\"div\");\n this.scrollDOM.tabIndex = -1;\n this.scrollDOM.className = \"cm-scroller\";\n this.scrollDOM.appendChild(this.contentDOM);\n this.announceDOM = document.createElement(\"div\");\n this.announceDOM.style.cssText = \"position: fixed; top: -10000px\";\n this.announceDOM.setAttribute(\"aria-live\", \"polite\");\n this.dom = document.createElement(\"div\");\n this.dom.appendChild(this.announceDOM);\n this.dom.appendChild(this.scrollDOM);\n let { dispatch } = config;\n this.dispatchTransactions = config.dispatchTransactions ||\n (dispatch && ((trs) => trs.forEach(tr => dispatch(tr, this)))) ||\n ((trs) => this.update(trs));\n this.dispatch = this.dispatch.bind(this);\n this._root = (config.root || getRoot(config.parent) || document);\n this.viewState = new ViewState(config.state || EditorState.create(config));\n if (config.scrollTo && config.scrollTo.is(scrollIntoView))\n this.viewState.scrollTarget = config.scrollTo.value.clip(this.viewState.state);\n this.plugins = this.state.facet(viewPlugin).map(spec => new PluginInstance(spec));\n for (let plugin of this.plugins)\n plugin.update(this);\n this.observer = new DOMObserver(this);\n this.inputState = new InputState(this);\n this.inputState.ensureHandlers(this.plugins);\n this.docView = new DocView(this);\n this.mountStyles();\n this.updateAttrs();\n this.updateState = 0 /* UpdateState.Idle */;\n this.requestMeasure();\n if (config.parent)\n config.parent.appendChild(this.dom);\n }\n dispatch(...input) {\n let trs = input.length == 1 && input[0] instanceof Transaction ? input\n : input.length == 1 && Array.isArray(input[0]) ? input[0]\n : [this.state.update(...input)];\n this.dispatchTransactions(trs, this);\n }\n /**\n Update the view for the given array of transactions. This will\n update the visible document and selection to match the state\n produced by the transactions, and notify view plugins of the\n change. You should usually call\n [`dispatch`](https://codemirror.net/6/docs/ref/#view.EditorView.dispatch) instead, which uses this\n as a primitive.\n */\n update(transactions) {\n if (this.updateState != 0 /* UpdateState.Idle */)\n throw new Error(\"Calls to EditorView.update are not allowed while an update is in progress\");\n let redrawn = false, attrsChanged = false, update;\n let state = this.state;\n for (let tr of transactions) {\n if (tr.startState != state)\n throw new RangeError(\"Trying to update state with a transaction that doesn't start from the previous state.\");\n state = tr.state;\n }\n if (this.destroyed) {\n this.viewState.state = state;\n return;\n }\n let focus = this.hasFocus, focusFlag = 0, dispatchFocus = null;\n if (transactions.some(tr => tr.annotation(isFocusChange))) {\n this.inputState.notifiedFocused = focus;\n // If a focus-change transaction is being dispatched, set this update flag.\n focusFlag = 1 /* UpdateFlag.Focus */;\n }\n else if (focus != this.inputState.notifiedFocused) {\n this.inputState.notifiedFocused = focus;\n // Schedule a separate focus transaction if necessary, otherwise\n // add a flag to this update\n dispatchFocus = focusChangeTransaction(state, focus);\n if (!dispatchFocus)\n focusFlag = 1 /* UpdateFlag.Focus */;\n }\n // If there was a pending DOM change, eagerly read it and try to\n // apply it after the given transactions.\n let pendingKey = this.observer.delayedAndroidKey, domChange = null;\n if (pendingKey) {\n this.observer.clearDelayedAndroidKey();\n domChange = this.observer.readChange();\n // Only try to apply DOM changes if the transactions didn't\n // change the doc or selection.\n if (domChange && !this.state.doc.eq(state.doc) || !this.state.selection.eq(state.selection))\n domChange = null;\n }\n else {\n this.observer.clear();\n }\n // When the phrases change, redraw the editor\n if (state.facet(EditorState.phrases) != this.state.facet(EditorState.phrases))\n return this.setState(state);\n update = ViewUpdate.create(this, state, transactions);\n update.flags |= focusFlag;\n let scrollTarget = this.viewState.scrollTarget;\n try {\n this.updateState = 2 /* UpdateState.Updating */;\n for (let tr of transactions) {\n if (scrollTarget)\n scrollTarget = scrollTarget.map(tr.changes);\n if (tr.scrollIntoView) {\n let { main } = tr.state.selection;\n scrollTarget = new ScrollTarget(main.empty ? main : EditorSelection.cursor(main.head, main.head > main.anchor ? -1 : 1));\n }\n for (let e of tr.effects)\n if (e.is(scrollIntoView))\n scrollTarget = e.value.clip(this.state);\n }\n this.viewState.update(update, scrollTarget);\n this.bidiCache = CachedOrder.update(this.bidiCache, update.changes);\n if (!update.empty) {\n this.updatePlugins(update);\n this.inputState.update(update);\n }\n redrawn = this.docView.update(update);\n if (this.state.facet(styleModule) != this.styleModules)\n this.mountStyles();\n attrsChanged = this.updateAttrs();\n this.showAnnouncements(transactions);\n this.docView.updateSelection(redrawn, transactions.some(tr => tr.isUserEvent(\"select.pointer\")));\n }\n finally {\n this.updateState = 0 /* UpdateState.Idle */;\n }\n if (update.startState.facet(theme) != update.state.facet(theme))\n this.viewState.mustMeasureContent = true;\n if (redrawn || attrsChanged || scrollTarget || this.viewState.mustEnforceCursorAssoc || this.viewState.mustMeasureContent)\n this.requestMeasure();\n if (!update.empty)\n for (let listener of this.state.facet(updateListener)) {\n try {\n listener(update);\n }\n catch (e) {\n logException(this.state, e, \"update listener\");\n }\n }\n if (dispatchFocus || domChange)\n Promise.resolve().then(() => {\n if (dispatchFocus && this.state == dispatchFocus.startState)\n this.dispatch(dispatchFocus);\n if (domChange) {\n if (!applyDOMChange(this, domChange) && pendingKey.force)\n dispatchKey(this.contentDOM, pendingKey.key, pendingKey.keyCode);\n }\n });\n }\n /**\n Reset the view to the given state. (This will cause the entire\n document to be redrawn and all view plugins to be reinitialized,\n so you should probably only use it when the new state isn't\n derived from the old state. Otherwise, use\n [`dispatch`](https://codemirror.net/6/docs/ref/#view.EditorView.dispatch) instead.)\n */\n setState(newState) {\n if (this.updateState != 0 /* UpdateState.Idle */)\n throw new Error(\"Calls to EditorView.setState are not allowed while an update is in progress\");\n if (this.destroyed) {\n this.viewState.state = newState;\n return;\n }\n this.updateState = 2 /* UpdateState.Updating */;\n let hadFocus = this.hasFocus;\n try {\n for (let plugin of this.plugins)\n plugin.destroy(this);\n this.viewState = new ViewState(newState);\n this.plugins = newState.facet(viewPlugin).map(spec => new PluginInstance(spec));\n this.pluginMap.clear();\n for (let plugin of this.plugins)\n plugin.update(this);\n this.docView = new DocView(this);\n this.inputState.ensureHandlers(this.plugins);\n this.mountStyles();\n this.updateAttrs();\n this.bidiCache = [];\n }\n finally {\n this.updateState = 0 /* UpdateState.Idle */;\n }\n if (hadFocus)\n this.focus();\n this.requestMeasure();\n }\n updatePlugins(update) {\n let prevSpecs = update.startState.facet(viewPlugin), specs = update.state.facet(viewPlugin);\n if (prevSpecs != specs) {\n let newPlugins = [];\n for (let spec of specs) {\n let found = prevSpecs.indexOf(spec);\n if (found < 0) {\n newPlugins.push(new PluginInstance(spec));\n }\n else {\n let plugin = this.plugins[found];\n plugin.mustUpdate = update;\n newPlugins.push(plugin);\n }\n }\n for (let plugin of this.plugins)\n if (plugin.mustUpdate != update)\n plugin.destroy(this);\n this.plugins = newPlugins;\n this.pluginMap.clear();\n }\n else {\n for (let p of this.plugins)\n p.mustUpdate = update;\n }\n for (let i = 0; i < this.plugins.length; i++)\n this.plugins[i].update(this);\n if (prevSpecs != specs)\n this.inputState.ensureHandlers(this.plugins);\n }\n /**\n @internal\n */\n measure(flush = true) {\n if (this.destroyed)\n return;\n if (this.measureScheduled > -1)\n this.win.cancelAnimationFrame(this.measureScheduled);\n if (this.observer.delayedAndroidKey) {\n this.measureScheduled = -1;\n this.requestMeasure();\n return;\n }\n this.measureScheduled = 0; // Prevent requestMeasure calls from scheduling another animation frame\n if (flush)\n this.observer.forceFlush();\n let updated = null;\n let sDOM = this.scrollDOM, scrollTop = sDOM.scrollTop * this.scaleY;\n let { scrollAnchorPos, scrollAnchorHeight } = this.viewState;\n if (Math.abs(scrollTop - this.viewState.scrollTop) > 1)\n scrollAnchorHeight = -1;\n this.viewState.scrollAnchorHeight = -1;\n try {\n for (let i = 0;; i++) {\n if (scrollAnchorHeight < 0) {\n if (isScrolledToBottom(sDOM)) {\n scrollAnchorPos = -1;\n scrollAnchorHeight = this.viewState.heightMap.height;\n }\n else {\n let block = this.viewState.scrollAnchorAt(scrollTop);\n scrollAnchorPos = block.from;\n scrollAnchorHeight = block.top;\n }\n }\n this.updateState = 1 /* UpdateState.Measuring */;\n let changed = this.viewState.measure(this);\n if (!changed && !this.measureRequests.length && this.viewState.scrollTarget == null)\n break;\n if (i > 5) {\n console.warn(this.measureRequests.length\n ? \"Measure loop restarted more than 5 times\"\n : \"Viewport failed to stabilize\");\n break;\n }\n let measuring = [];\n // Only run measure requests in this cycle when the viewport didn't change\n if (!(changed & 4 /* UpdateFlag.Viewport */))\n [this.measureRequests, measuring] = [measuring, this.measureRequests];\n let measured = measuring.map(m => {\n try {\n return m.read(this);\n }\n catch (e) {\n logException(this.state, e);\n return BadMeasure;\n }\n });\n let update = ViewUpdate.create(this, this.state, []), redrawn = false;\n update.flags |= changed;\n if (!updated)\n updated = update;\n else\n updated.flags |= changed;\n this.updateState = 2 /* UpdateState.Updating */;\n if (!update.empty) {\n this.updatePlugins(update);\n this.inputState.update(update);\n this.updateAttrs();\n redrawn = this.docView.update(update);\n }\n for (let i = 0; i < measuring.length; i++)\n if (measured[i] != BadMeasure) {\n try {\n let m = measuring[i];\n if (m.write)\n m.write(measured[i], this);\n }\n catch (e) {\n logException(this.state, e);\n }\n }\n if (redrawn)\n this.docView.updateSelection(true);\n if (!update.viewportChanged && this.measureRequests.length == 0) {\n if (this.viewState.editorHeight) {\n if (this.viewState.scrollTarget) {\n this.docView.scrollIntoView(this.viewState.scrollTarget);\n this.viewState.scrollTarget = null;\n continue;\n }\n else {\n let newAnchorHeight = scrollAnchorPos < 0 ? this.viewState.heightMap.height :\n this.viewState.lineBlockAt(scrollAnchorPos).top;\n let diff = newAnchorHeight - scrollAnchorHeight;\n if (diff > 1 || diff < -1) {\n scrollTop = scrollTop + diff;\n sDOM.scrollTop = scrollTop / this.scaleY;\n scrollAnchorHeight = -1;\n continue;\n }\n }\n }\n break;\n }\n }\n }\n finally {\n this.updateState = 0 /* UpdateState.Idle */;\n this.measureScheduled = -1;\n }\n if (updated && !updated.empty)\n for (let listener of this.state.facet(updateListener))\n listener(updated);\n }\n /**\n Get the CSS classes for the currently active editor themes.\n */\n get themeClasses() {\n return baseThemeID + \" \" +\n (this.state.facet(darkTheme) ? baseDarkID : baseLightID) + \" \" +\n this.state.facet(theme);\n }\n updateAttrs() {\n let editorAttrs = attrsFromFacet(this, editorAttributes, {\n class: \"cm-editor\" + (this.hasFocus ? \" cm-focused \" : \" \") + this.themeClasses\n });\n let contentAttrs = {\n spellcheck: \"false\",\n autocorrect: \"off\",\n autocapitalize: \"off\",\n translate: \"no\",\n contenteditable: !this.state.facet(editable) ? \"false\" : \"true\",\n class: \"cm-content\",\n style: `${browser.tabSize}: ${this.state.tabSize}`,\n role: \"textbox\",\n \"aria-multiline\": \"true\"\n };\n if (this.state.readOnly)\n contentAttrs[\"aria-readonly\"] = \"true\";\n attrsFromFacet(this, contentAttributes, contentAttrs);\n let changed = this.observer.ignore(() => {\n let changedContent = updateAttrs(this.contentDOM, this.contentAttrs, contentAttrs);\n let changedEditor = updateAttrs(this.dom, this.editorAttrs, editorAttrs);\n return changedContent || changedEditor;\n });\n this.editorAttrs = editorAttrs;\n this.contentAttrs = contentAttrs;\n return changed;\n }\n showAnnouncements(trs) {\n let first = true;\n for (let tr of trs)\n for (let effect of tr.effects)\n if (effect.is(EditorView.announce)) {\n if (first)\n this.announceDOM.textContent = \"\";\n first = false;\n let div = this.announceDOM.appendChild(document.createElement(\"div\"));\n div.textContent = effect.value;\n }\n }\n mountStyles() {\n this.styleModules = this.state.facet(styleModule);\n let nonce = this.state.facet(EditorView.cspNonce);\n StyleModule.mount(this.root, this.styleModules.concat(baseTheme$1).reverse(), nonce ? { nonce } : undefined);\n }\n readMeasured() {\n if (this.updateState == 2 /* UpdateState.Updating */)\n throw new Error(\"Reading the editor layout isn't allowed during an update\");\n if (this.updateState == 0 /* UpdateState.Idle */ && this.measureScheduled > -1)\n this.measure(false);\n }\n /**\n Schedule a layout measurement, optionally providing callbacks to\n do custom DOM measuring followed by a DOM write phase. Using\n this is preferable reading DOM layout directly from, for\n example, an event handler, because it'll make sure measuring and\n drawing done by other components is synchronized, avoiding\n unnecessary DOM layout computations.\n */\n requestMeasure(request) {\n if (this.measureScheduled < 0)\n this.measureScheduled = this.win.requestAnimationFrame(() => this.measure());\n if (request) {\n if (this.measureRequests.indexOf(request) > -1)\n return;\n if (request.key != null)\n for (let i = 0; i < this.measureRequests.length; i++) {\n if (this.measureRequests[i].key === request.key) {\n this.measureRequests[i] = request;\n return;\n }\n }\n this.measureRequests.push(request);\n }\n }\n /**\n Get the value of a specific plugin, if present. Note that\n plugins that crash can be dropped from a view, so even when you\n know you registered a given plugin, it is recommended to check\n the return value of this method.\n */\n plugin(plugin) {\n let known = this.pluginMap.get(plugin);\n if (known === undefined || known && known.spec != plugin)\n this.pluginMap.set(plugin, known = this.plugins.find(p => p.spec == plugin) || null);\n return known && known.update(this).value;\n }\n /**\n The top position of the document, in screen coordinates. This\n may be negative when the editor is scrolled down. Points\n directly to the top of the first line, not above the padding.\n */\n get documentTop() {\n return this.contentDOM.getBoundingClientRect().top + this.viewState.paddingTop;\n }\n /**\n Reports the padding above and below the document.\n */\n get documentPadding() {\n return { top: this.viewState.paddingTop, bottom: this.viewState.paddingBottom };\n }\n /**\n If the editor is transformed with CSS, this provides the scale\n along the X axis. Otherwise, it will just be 1. Note that\n transforms other than translation and scaling are not supported.\n */\n get scaleX() { return this.viewState.scaleX; }\n /**\n Provide the CSS transformed scale along the Y axis.\n */\n get scaleY() { return this.viewState.scaleY; }\n /**\n Find the text line or block widget at the given vertical\n position (which is interpreted as relative to the [top of the\n document](https://codemirror.net/6/docs/ref/#view.EditorView.documentTop)).\n */\n elementAtHeight(height) {\n this.readMeasured();\n return this.viewState.elementAtHeight(height);\n }\n /**\n Find the line block (see\n [`lineBlockAt`](https://codemirror.net/6/docs/ref/#view.EditorView.lineBlockAt) at the given\n height, again interpreted relative to the [top of the\n document](https://codemirror.net/6/docs/ref/#view.EditorView.documentTop).\n */\n lineBlockAtHeight(height) {\n this.readMeasured();\n return this.viewState.lineBlockAtHeight(height);\n }\n /**\n Get the extent and vertical position of all [line\n blocks](https://codemirror.net/6/docs/ref/#view.EditorView.lineBlockAt) in the viewport. Positions\n are relative to the [top of the\n document](https://codemirror.net/6/docs/ref/#view.EditorView.documentTop);\n */\n get viewportLineBlocks() {\n return this.viewState.viewportLines;\n }\n /**\n Find the line block around the given document position. A line\n block is a range delimited on both sides by either a\n non-[hidden](https://codemirror.net/6/docs/ref/#view.Decoration^replace) line breaks, or the\n start/end of the document. It will usually just hold a line of\n text, but may be broken into multiple textblocks by block\n widgets.\n */\n lineBlockAt(pos) {\n return this.viewState.lineBlockAt(pos);\n }\n /**\n The editor's total content height.\n */\n get contentHeight() {\n return this.viewState.contentHeight;\n }\n /**\n Move a cursor position by [grapheme\n cluster](https://codemirror.net/6/docs/ref/#state.findClusterBreak). `forward` determines whether\n the motion is away from the line start, or towards it. In\n bidirectional text, the line is traversed in visual order, using\n the editor's [text direction](https://codemirror.net/6/docs/ref/#view.EditorView.textDirection).\n When the start position was the last one on the line, the\n returned position will be across the line break. If there is no\n further line, the original position is returned.\n \n By default, this method moves over a single cluster. The\n optional `by` argument can be used to move across more. It will\n be called with the first cluster as argument, and should return\n a predicate that determines, for each subsequent cluster,\n whether it should also be moved over.\n */\n moveByChar(start, forward, by) {\n return skipAtoms(this, start, moveByChar(this, start, forward, by));\n }\n /**\n Move a cursor position across the next group of either\n [letters](https://codemirror.net/6/docs/ref/#state.EditorState.charCategorizer) or non-letter\n non-whitespace characters.\n */\n moveByGroup(start, forward) {\n return skipAtoms(this, start, moveByChar(this, start, forward, initial => byGroup(this, start.head, initial)));\n }\n /**\n Move to the next line boundary in the given direction. If\n `includeWrap` is true, line wrapping is on, and there is a\n further wrap point on the current line, the wrap point will be\n returned. Otherwise this function will return the start or end\n of the line.\n */\n moveToLineBoundary(start, forward, includeWrap = true) {\n return moveToLineBoundary(this, start, forward, includeWrap);\n }\n /**\n Move a cursor position vertically. When `distance` isn't given,\n it defaults to moving to the next line (including wrapped\n lines). Otherwise, `distance` should provide a positive distance\n in pixels.\n \n When `start` has a\n [`goalColumn`](https://codemirror.net/6/docs/ref/#state.SelectionRange.goalColumn), the vertical\n motion will use that as a target horizontal position. Otherwise,\n the cursor's own horizontal position is used. The returned\n cursor will have its goal column set to whichever column was\n used.\n */\n moveVertically(start, forward, distance) {\n return skipAtoms(this, start, moveVertically(this, start, forward, distance));\n }\n /**\n Find the DOM parent node and offset (child offset if `node` is\n an element, character offset when it is a text node) at the\n given document position.\n \n Note that for positions that aren't currently in\n `visibleRanges`, the resulting DOM position isn't necessarily\n meaningful (it may just point before or after a placeholder\n element).\n */\n domAtPos(pos) {\n return this.docView.domAtPos(pos);\n }\n /**\n Find the document position at the given DOM node. Can be useful\n for associating positions with DOM events. Will raise an error\n when `node` isn't part of the editor content.\n */\n posAtDOM(node, offset = 0) {\n return this.docView.posFromDOM(node, offset);\n }\n posAtCoords(coords, precise = true) {\n this.readMeasured();\n return posAtCoords(this, coords, precise);\n }\n /**\n Get the screen coordinates at the given document position.\n `side` determines whether the coordinates are based on the\n element before (-1) or after (1) the position (if no element is\n available on the given side, the method will transparently use\n another strategy to get reasonable coordinates).\n */\n coordsAtPos(pos, side = 1) {\n this.readMeasured();\n let rect = this.docView.coordsAt(pos, side);\n if (!rect || rect.left == rect.right)\n return rect;\n let line = this.state.doc.lineAt(pos), order = this.bidiSpans(line);\n let span = order[BidiSpan.find(order, pos - line.from, -1, side)];\n return flattenRect(rect, (span.dir == Direction.LTR) == (side > 0));\n }\n /**\n Return the rectangle around a given character. If `pos` does not\n point in front of a character that is in the viewport and\n rendered (i.e. not replaced, not a line break), this will return\n null. For space characters that are a line wrap point, this will\n return the position before the line break.\n */\n coordsForChar(pos) {\n this.readMeasured();\n return this.docView.coordsForChar(pos);\n }\n /**\n The default width of a character in the editor. May not\n accurately reflect the width of all characters (given variable\n width fonts or styling of invididual ranges).\n */\n get defaultCharacterWidth() { return this.viewState.heightOracle.charWidth; }\n /**\n The default height of a line in the editor. May not be accurate\n for all lines.\n */\n get defaultLineHeight() { return this.viewState.heightOracle.lineHeight; }\n /**\n The text direction\n ([`direction`](https://developer.mozilla.org/en-US/docs/Web/CSS/direction)\n CSS property) of the editor's content element.\n */\n get textDirection() { return this.viewState.defaultTextDirection; }\n /**\n Find the text direction of the block at the given position, as\n assigned by CSS. If\n [`perLineTextDirection`](https://codemirror.net/6/docs/ref/#view.EditorView^perLineTextDirection)\n isn't enabled, or the given position is outside of the viewport,\n this will always return the same as\n [`textDirection`](https://codemirror.net/6/docs/ref/#view.EditorView.textDirection). Note that\n this may trigger a DOM layout.\n */\n textDirectionAt(pos) {\n let perLine = this.state.facet(perLineTextDirection);\n if (!perLine || pos < this.viewport.from || pos > this.viewport.to)\n return this.textDirection;\n this.readMeasured();\n return this.docView.textDirectionAt(pos);\n }\n /**\n Whether this editor [wraps lines](https://codemirror.net/6/docs/ref/#view.EditorView.lineWrapping)\n (as determined by the\n [`white-space`](https://developer.mozilla.org/en-US/docs/Web/CSS/white-space)\n CSS property of its content element).\n */\n get lineWrapping() { return this.viewState.heightOracle.lineWrapping; }\n /**\n Returns the bidirectional text structure of the given line\n (which should be in the current document) as an array of span\n objects. The order of these spans matches the [text\n direction](https://codemirror.net/6/docs/ref/#view.EditorView.textDirection)—if that is\n left-to-right, the leftmost spans come first, otherwise the\n rightmost spans come first.\n */\n bidiSpans(line) {\n if (line.length > MaxBidiLine)\n return trivialOrder(line.length);\n let dir = this.textDirectionAt(line.from), isolates;\n for (let entry of this.bidiCache) {\n if (entry.from == line.from && entry.dir == dir &&\n (entry.fresh || isolatesEq(entry.isolates, isolates = getIsolatedRanges(this, line.from, line.to))))\n return entry.order;\n }\n if (!isolates)\n isolates = getIsolatedRanges(this, line.from, line.to);\n let order = computeOrder(line.text, dir, isolates);\n this.bidiCache.push(new CachedOrder(line.from, line.to, dir, isolates, true, order));\n return order;\n }\n /**\n Check whether the editor has focus.\n */\n get hasFocus() {\n var _a;\n // Safari return false for hasFocus when the context menu is open\n // or closing, which leads us to ignore selection changes from the\n // context menu because it looks like the editor isn't focused.\n // This kludges around that.\n return (this.dom.ownerDocument.hasFocus() || browser.safari && ((_a = this.inputState) === null || _a === void 0 ? void 0 : _a.lastContextMenu) > Date.now() - 3e4) &&\n this.root.activeElement == this.contentDOM;\n }\n /**\n Put focus on the editor.\n */\n focus() {\n this.observer.ignore(() => {\n focusPreventScroll(this.contentDOM);\n this.docView.updateSelection();\n });\n }\n /**\n Update the [root](https://codemirror.net/6/docs/ref/##view.EditorViewConfig.root) in which the editor lives. This is only\n necessary when moving the editor's existing DOM to a new window or shadow root.\n */\n setRoot(root) {\n if (this._root != root) {\n this._root = root;\n this.observer.setWindow((root.nodeType == 9 ? root : root.ownerDocument).defaultView || window);\n this.mountStyles();\n }\n }\n /**\n Clean up this editor view, removing its element from the\n document, unregistering event handlers, and notifying\n plugins. The view instance can no longer be used after\n calling this.\n */\n destroy() {\n for (let plugin of this.plugins)\n plugin.destroy(this);\n this.plugins = [];\n this.inputState.destroy();\n this.dom.remove();\n this.observer.destroy();\n if (this.measureScheduled > -1)\n this.win.cancelAnimationFrame(this.measureScheduled);\n this.destroyed = true;\n }\n /**\n Returns an effect that can be\n [added](https://codemirror.net/6/docs/ref/#state.TransactionSpec.effects) to a transaction to\n cause it to scroll the given position or range into view.\n */\n static scrollIntoView(pos, options = {}) {\n return scrollIntoView.of(new ScrollTarget(typeof pos == \"number\" ? EditorSelection.cursor(pos) : pos, options.y, options.x, options.yMargin, options.xMargin));\n }\n /**\n Return an effect that resets the editor to its current (at the\n time this method was called) scroll position. Note that this\n only affects the editor's own scrollable element, not parents.\n See also\n [`EditorViewConfig.scrollTo`](https://codemirror.net/6/docs/ref/#view.EditorViewConfig.scrollTo).\n \n The effect should be used with a document identical to the one\n it was created for. Failing to do so is not an error, but may\n not scroll to the expected position. You can\n [map](https://codemirror.net/6/docs/ref/#state.StateEffect.map) the effect to account for changes.\n */\n scrollSnapshot() {\n let { scrollTop, scrollLeft } = this.scrollDOM;\n let ref = this.viewState.scrollAnchorAt(scrollTop);\n return scrollIntoView.of(new ScrollTarget(EditorSelection.cursor(ref.from), \"start\", \"start\", ref.top - scrollTop, scrollLeft, true));\n }\n /**\n Returns an extension that can be used to add DOM event handlers.\n The value should be an object mapping event names to handler\n functions. For any given event, such functions are ordered by\n extension precedence, and the first handler to return true will\n be assumed to have handled that event, and no other handlers or\n built-in behavior will be activated for it. These are registered\n on the [content element](https://codemirror.net/6/docs/ref/#view.EditorView.contentDOM), except\n for `scroll` handlers, which will be called any time the\n editor's [scroll element](https://codemirror.net/6/docs/ref/#view.EditorView.scrollDOM) or one of\n its parent nodes is scrolled.\n */\n static domEventHandlers(handlers) {\n return ViewPlugin.define(() => ({}), { eventHandlers: handlers });\n }\n /**\n Create an extension that registers DOM event observers. Contrary\n to event [handlers](https://codemirror.net/6/docs/ref/#view.EditorView^domEventHandlers),\n observers can't be prevented from running by a higher-precedence\n handler returning true. They also don't prevent other handlers\n and observers from running when they return true, and should not\n call `preventDefault`.\n */\n static domEventObservers(observers) {\n return ViewPlugin.define(() => ({}), { eventObservers: observers });\n }\n /**\n Create a theme extension. The first argument can be a\n [`style-mod`](https://github.com/marijnh/style-mod#documentation)\n style spec providing the styles for the theme. These will be\n prefixed with a generated class for the style.\n \n Because the selectors will be prefixed with a scope class, rule\n that directly match the editor's [wrapper\n element](https://codemirror.net/6/docs/ref/#view.EditorView.dom)—to which the scope class will be\n added—need to be explicitly differentiated by adding an `&` to\n the selector for that element—for example\n `&.cm-focused`.\n \n When `dark` is set to true, the theme will be marked as dark,\n which will cause the `&dark` rules from [base\n themes](https://codemirror.net/6/docs/ref/#view.EditorView^baseTheme) to be used (as opposed to\n `&light` when a light theme is active).\n */\n static theme(spec, options) {\n let prefix = StyleModule.newName();\n let result = [theme.of(prefix), styleModule.of(buildTheme(`.${prefix}`, spec))];\n if (options && options.dark)\n result.push(darkTheme.of(true));\n return result;\n }\n /**\n Create an extension that adds styles to the base theme. Like\n with [`theme`](https://codemirror.net/6/docs/ref/#view.EditorView^theme), use `&` to indicate the\n place of the editor wrapper element when directly targeting\n that. You can also use `&dark` or `&light` instead to only\n target editors with a dark or light theme.\n */\n static baseTheme(spec) {\n return Prec.lowest(styleModule.of(buildTheme(\".\" + baseThemeID, spec, lightDarkIDs)));\n }\n /**\n Retrieve an editor view instance from the view's DOM\n representation.\n */\n static findFromDOM(dom) {\n var _a;\n let content = dom.querySelector(\".cm-content\");\n let cView = content && ContentView.get(content) || ContentView.get(dom);\n return ((_a = cView === null || cView === void 0 ? void 0 : cView.rootView) === null || _a === void 0 ? void 0 : _a.view) || null;\n }\n}\n/**\nFacet to add a [style\nmodule](https://github.com/marijnh/style-mod#documentation) to\nan editor view. The view will ensure that the module is\nmounted in its [document\nroot](https://codemirror.net/6/docs/ref/#view.EditorView.constructor^config.root).\n*/\nEditorView.styleModule = styleModule;\n/**\nAn input handler can override the way changes to the editable\nDOM content are handled. Handlers are passed the document\npositions between which the change was found, and the new\ncontent. When one returns true, no further input handlers are\ncalled and the default behavior is prevented.\n\nThe `insert` argument can be used to get the default transaction\nthat would be applied for this input. This can be useful when\ndispatching the custom behavior as a separate transaction.\n*/\nEditorView.inputHandler = inputHandler;\n/**\nThis facet can be used to provide functions that create effects\nto be dispatched when the editor's focus state changes.\n*/\nEditorView.focusChangeEffect = focusChangeEffect;\n/**\nBy default, the editor assumes all its content has the same\n[text direction](https://codemirror.net/6/docs/ref/#view.Direction). Configure this with a `true`\nvalue to make it read the text direction of every (rendered)\nline separately.\n*/\nEditorView.perLineTextDirection = perLineTextDirection;\n/**\nAllows you to provide a function that should be called when the\nlibrary catches an exception from an extension (mostly from view\nplugins, but may be used by other extensions to route exceptions\nfrom user-code-provided callbacks). This is mostly useful for\ndebugging and logging. See [`logException`](https://codemirror.net/6/docs/ref/#view.logException).\n*/\nEditorView.exceptionSink = exceptionSink;\n/**\nA facet that can be used to register a function to be called\nevery time the view updates.\n*/\nEditorView.updateListener = updateListener;\n/**\nFacet that controls whether the editor content DOM is editable.\nWhen its highest-precedence value is `false`, the element will\nnot have its `contenteditable` attribute set. (Note that this\ndoesn't affect API calls that change the editor content, even\nwhen those are bound to keys or buttons. See the\n[`readOnly`](https://codemirror.net/6/docs/ref/#state.EditorState.readOnly) facet for that.)\n*/\nEditorView.editable = editable;\n/**\nAllows you to influence the way mouse selection happens. The\nfunctions in this facet will be called for a `mousedown` event\non the editor, and can return an object that overrides the way a\nselection is computed from that mouse click or drag.\n*/\nEditorView.mouseSelectionStyle = mouseSelectionStyle;\n/**\nFacet used to configure whether a given selection drag event\nshould move or copy the selection. The given predicate will be\ncalled with the `mousedown` event, and can return `true` when\nthe drag should move the content.\n*/\nEditorView.dragMovesSelection = dragMovesSelection$1;\n/**\nFacet used to configure whether a given selecting click adds a\nnew range to the existing selection or replaces it entirely. The\ndefault behavior is to check `event.metaKey` on macOS, and\n`event.ctrlKey` elsewhere.\n*/\nEditorView.clickAddsSelectionRange = clickAddsSelectionRange;\n/**\nA facet that determines which [decorations](https://codemirror.net/6/docs/ref/#view.Decoration)\nare shown in the view. Decorations can be provided in two\nways—directly, or via a function that takes an editor view.\n\nOnly decoration sets provided directly are allowed to influence\nthe editor's vertical layout structure. The ones provided as\nfunctions are called _after_ the new viewport has been computed,\nand thus **must not** introduce block widgets or replacing\ndecorations that cover line breaks.\n\nIf you want decorated ranges to behave like atomic units for\ncursor motion and deletion purposes, also provide the range set\ncontaining the decorations to\n[`EditorView.atomicRanges`](https://codemirror.net/6/docs/ref/#view.EditorView^atomicRanges).\n*/\nEditorView.decorations = decorations;\n/**\nUsed to provide ranges that should be treated as atoms as far as\ncursor motion is concerned. This causes methods like\n[`moveByChar`](https://codemirror.net/6/docs/ref/#view.EditorView.moveByChar) and\n[`moveVertically`](https://codemirror.net/6/docs/ref/#view.EditorView.moveVertically) (and the\ncommands built on top of them) to skip across such regions when\na selection endpoint would enter them. This does _not_ prevent\ndirect programmatic [selection\nupdates](https://codemirror.net/6/docs/ref/#state.TransactionSpec.selection) from moving into such\nregions.\n*/\nEditorView.atomicRanges = atomicRanges;\n/**\nWhen range decorations add a `unicode-bidi: isolate` style, they\nshould also include a\n[`bidiIsolate`](https://codemirror.net/6/docs/ref/#view.MarkDecorationSpec.bidiIsolate) property\nin their decoration spec, and be exposed through this facet, so\nthat the editor can compute the proper text order. (Other values\nfor `unicode-bidi`, except of course `normal`, are not\nsupported.)\n*/\nEditorView.bidiIsolatedRanges = bidiIsolatedRanges;\n/**\nFacet that allows extensions to provide additional scroll\nmargins (space around the sides of the scrolling element that\nshould be considered invisible). This can be useful when the\nplugin introduces elements that cover part of that element (for\nexample a horizontally fixed gutter).\n*/\nEditorView.scrollMargins = scrollMargins;\n/**\nThis facet records whether a dark theme is active. The extension\nreturned by [`theme`](https://codemirror.net/6/docs/ref/#view.EditorView^theme) automatically\nincludes an instance of this when the `dark` option is set to\ntrue.\n*/\nEditorView.darkTheme = darkTheme;\n/**\nProvides a Content Security Policy nonce to use when creating\nthe style sheets for the editor. Holds the empty string when no\nnonce has been provided.\n*/\nEditorView.cspNonce = /*@__PURE__*/Facet.define({ combine: values => values.length ? values[0] : \"\" });\n/**\nFacet that provides additional DOM attributes for the editor's\neditable DOM element.\n*/\nEditorView.contentAttributes = contentAttributes;\n/**\nFacet that provides DOM attributes for the editor's outer\nelement.\n*/\nEditorView.editorAttributes = editorAttributes;\n/**\nAn extension that enables line wrapping in the editor (by\nsetting CSS `white-space` to `pre-wrap` in the content).\n*/\nEditorView.lineWrapping = /*@__PURE__*/EditorView.contentAttributes.of({ \"class\": \"cm-lineWrapping\" });\n/**\nState effect used to include screen reader announcements in a\ntransaction. These will be added to the DOM in a visually hidden\nelement with `aria-live=\"polite\"` set, and should be used to\ndescribe effects that are visually obvious but may not be\nnoticed by screen reader users (such as moving to the next\nsearch match).\n*/\nEditorView.announce = /*@__PURE__*/StateEffect.define();\n// Maximum line length for which we compute accurate bidi info\nconst MaxBidiLine = 4096;\nconst BadMeasure = {};\nclass CachedOrder {\n constructor(from, to, dir, isolates, fresh, order) {\n this.from = from;\n this.to = to;\n this.dir = dir;\n this.isolates = isolates;\n this.fresh = fresh;\n this.order = order;\n }\n static update(cache, changes) {\n if (changes.empty && !cache.some(c => c.fresh))\n return cache;\n let result = [], lastDir = cache.length ? cache[cache.length - 1].dir : Direction.LTR;\n for (let i = Math.max(0, cache.length - 10); i < cache.length; i++) {\n let entry = cache[i];\n if (entry.dir == lastDir && !changes.touchesRange(entry.from, entry.to))\n result.push(new CachedOrder(changes.mapPos(entry.from, 1), changes.mapPos(entry.to, -1), entry.dir, entry.isolates, false, entry.order));\n }\n return result;\n }\n}\nfunction attrsFromFacet(view, facet, base) {\n for (let sources = view.state.facet(facet), i = sources.length - 1; i >= 0; i--) {\n let source = sources[i], value = typeof source == \"function\" ? source(view) : source;\n if (value)\n combineAttrs(value, base);\n }\n return base;\n}\n\nconst currentPlatform = browser.mac ? \"mac\" : browser.windows ? \"win\" : browser.linux ? \"linux\" : \"key\";\nfunction normalizeKeyName(name, platform) {\n const parts = name.split(/-(?!$)/);\n let result = parts[parts.length - 1];\n if (result == \"Space\")\n result = \" \";\n let alt, ctrl, shift, meta;\n for (let i = 0; i < parts.length - 1; ++i) {\n const mod = parts[i];\n if (/^(cmd|meta|m)$/i.test(mod))\n meta = true;\n else if (/^a(lt)?$/i.test(mod))\n alt = true;\n else if (/^(c|ctrl|control)$/i.test(mod))\n ctrl = true;\n else if (/^s(hift)?$/i.test(mod))\n shift = true;\n else if (/^mod$/i.test(mod)) {\n if (platform == \"mac\")\n meta = true;\n else\n ctrl = true;\n }\n else\n throw new Error(\"Unrecognized modifier name: \" + mod);\n }\n if (alt)\n result = \"Alt-\" + result;\n if (ctrl)\n result = \"Ctrl-\" + result;\n if (meta)\n result = \"Meta-\" + result;\n if (shift)\n result = \"Shift-\" + result;\n return result;\n}\nfunction modifiers(name, event, shift) {\n if (event.altKey)\n name = \"Alt-\" + name;\n if (event.ctrlKey)\n name = \"Ctrl-\" + name;\n if (event.metaKey)\n name = \"Meta-\" + name;\n if (shift !== false && event.shiftKey)\n name = \"Shift-\" + name;\n return name;\n}\nconst handleKeyEvents = /*@__PURE__*/Prec.default(/*@__PURE__*/EditorView.domEventHandlers({\n keydown(event, view) {\n return runHandlers(getKeymap(view.state), event, view, \"editor\");\n }\n}));\n/**\nFacet used for registering keymaps.\n\nYou can add multiple keymaps to an editor. Their priorities\ndetermine their precedence (the ones specified early or with high\npriority get checked first). When a handler has returned `true`\nfor a given key, no further handlers are called.\n*/\nconst keymap = /*@__PURE__*/Facet.define({ enables: handleKeyEvents });\nconst Keymaps = /*@__PURE__*/new WeakMap();\n// This is hidden behind an indirection, rather than directly computed\n// by the facet, to keep internal types out of the facet's type.\nfunction getKeymap(state) {\n let bindings = state.facet(keymap);\n let map = Keymaps.get(bindings);\n if (!map)\n Keymaps.set(bindings, map = buildKeymap(bindings.reduce((a, b) => a.concat(b), [])));\n return map;\n}\n/**\nRun the key handlers registered for a given scope. The event\nobject should be a `\"keydown\"` event. Returns true if any of the\nhandlers handled it.\n*/\nfunction runScopeHandlers(view, event, scope) {\n return runHandlers(getKeymap(view.state), event, view, scope);\n}\nlet storedPrefix = null;\nconst PrefixTimeout = 4000;\nfunction buildKeymap(bindings, platform = currentPlatform) {\n let bound = Object.create(null);\n let isPrefix = Object.create(null);\n let checkPrefix = (name, is) => {\n let current = isPrefix[name];\n if (current == null)\n isPrefix[name] = is;\n else if (current != is)\n throw new Error(\"Key binding \" + name + \" is used both as a regular binding and as a multi-stroke prefix\");\n };\n let add = (scope, key, command, preventDefault, stopPropagation) => {\n var _a, _b;\n let scopeObj = bound[scope] || (bound[scope] = Object.create(null));\n let parts = key.split(/ (?!$)/).map(k => normalizeKeyName(k, platform));\n for (let i = 1; i < parts.length; i++) {\n let prefix = parts.slice(0, i).join(\" \");\n checkPrefix(prefix, true);\n if (!scopeObj[prefix])\n scopeObj[prefix] = {\n preventDefault: true,\n stopPropagation: false,\n run: [(view) => {\n let ourObj = storedPrefix = { view, prefix, scope };\n setTimeout(() => { if (storedPrefix == ourObj)\n storedPrefix = null; }, PrefixTimeout);\n return true;\n }]\n };\n }\n let full = parts.join(\" \");\n checkPrefix(full, false);\n let binding = scopeObj[full] || (scopeObj[full] = {\n preventDefault: false,\n stopPropagation: false,\n run: ((_b = (_a = scopeObj._any) === null || _a === void 0 ? void 0 : _a.run) === null || _b === void 0 ? void 0 : _b.slice()) || []\n });\n if (command)\n binding.run.push(command);\n if (preventDefault)\n binding.preventDefault = true;\n if (stopPropagation)\n binding.stopPropagation = true;\n };\n for (let b of bindings) {\n let scopes = b.scope ? b.scope.split(\" \") : [\"editor\"];\n if (b.any)\n for (let scope of scopes) {\n let scopeObj = bound[scope] || (bound[scope] = Object.create(null));\n if (!scopeObj._any)\n scopeObj._any = { preventDefault: false, stopPropagation: false, run: [] };\n for (let key in scopeObj)\n scopeObj[key].run.push(b.any);\n }\n let name = b[platform] || b.key;\n if (!name)\n continue;\n for (let scope of scopes) {\n add(scope, name, b.run, b.preventDefault, b.stopPropagation);\n if (b.shift)\n add(scope, \"Shift-\" + name, b.shift, b.preventDefault, b.stopPropagation);\n }\n }\n return bound;\n}\nfunction runHandlers(map, event, view, scope) {\n let name = keyName(event);\n let charCode = codePointAt(name, 0), isChar = codePointSize(charCode) == name.length && name != \" \";\n let prefix = \"\", handled = false, prevented = false, stopPropagation = false;\n if (storedPrefix && storedPrefix.view == view && storedPrefix.scope == scope) {\n prefix = storedPrefix.prefix + \" \";\n if (modifierCodes.indexOf(event.keyCode) < 0) {\n prevented = true;\n storedPrefix = null;\n }\n }\n let ran = new Set;\n let runFor = (binding) => {\n if (binding) {\n for (let cmd of binding.run)\n if (!ran.has(cmd)) {\n ran.add(cmd);\n if (cmd(view, event)) {\n if (binding.stopPropagation)\n stopPropagation = true;\n return true;\n }\n }\n if (binding.preventDefault) {\n if (binding.stopPropagation)\n stopPropagation = true;\n prevented = true;\n }\n }\n return false;\n };\n let scopeObj = map[scope], baseName, shiftName;\n if (scopeObj) {\n if (runFor(scopeObj[prefix + modifiers(name, event, !isChar)])) {\n handled = true;\n }\n else if (isChar && (event.altKey || event.metaKey || event.ctrlKey) &&\n // Ctrl-Alt may be used for AltGr on Windows\n !(browser.windows && event.ctrlKey && event.altKey) &&\n (baseName = base[event.keyCode]) && baseName != name) {\n if (runFor(scopeObj[prefix + modifiers(baseName, event, true)])) {\n handled = true;\n }\n else if (event.shiftKey && (shiftName = shift[event.keyCode]) != name && shiftName != baseName &&\n runFor(scopeObj[prefix + modifiers(shiftName, event, false)])) {\n handled = true;\n }\n }\n else if (isChar && event.shiftKey &&\n runFor(scopeObj[prefix + modifiers(name, event, true)])) {\n handled = true;\n }\n if (!handled && runFor(scopeObj._any))\n handled = true;\n }\n if (prevented)\n handled = true;\n if (handled && stopPropagation)\n event.stopPropagation();\n return handled;\n}\n\n/**\nImplementation of [`LayerMarker`](https://codemirror.net/6/docs/ref/#view.LayerMarker) that creates\na rectangle at a given set of coordinates.\n*/\nclass RectangleMarker {\n /**\n Create a marker with the given class and dimensions. If `width`\n is null, the DOM element will get no width style.\n */\n constructor(className, \n /**\n The left position of the marker (in pixels, document-relative).\n */\n left, \n /**\n The top position of the marker.\n */\n top, \n /**\n The width of the marker, or null if it shouldn't get a width assigned.\n */\n width, \n /**\n The height of the marker.\n */\n height) {\n this.className = className;\n this.left = left;\n this.top = top;\n this.width = width;\n this.height = height;\n }\n draw() {\n let elt = document.createElement(\"div\");\n elt.className = this.className;\n this.adjust(elt);\n return elt;\n }\n update(elt, prev) {\n if (prev.className != this.className)\n return false;\n this.adjust(elt);\n return true;\n }\n adjust(elt) {\n elt.style.left = this.left + \"px\";\n elt.style.top = this.top + \"px\";\n if (this.width != null)\n elt.style.width = this.width + \"px\";\n elt.style.height = this.height + \"px\";\n }\n eq(p) {\n return this.left == p.left && this.top == p.top && this.width == p.width && this.height == p.height &&\n this.className == p.className;\n }\n /**\n Create a set of rectangles for the given selection range,\n assigning them theclass`className`. Will create a single\n rectangle for empty ranges, and a set of selection-style\n rectangles covering the range's content (in a bidi-aware\n way) for non-empty ones.\n */\n static forRange(view, className, range) {\n if (range.empty) {\n let pos = view.coordsAtPos(range.head, range.assoc || 1);\n if (!pos)\n return [];\n let base = getBase(view);\n return [new RectangleMarker(className, pos.left - base.left, pos.top - base.top, null, pos.bottom - pos.top)];\n }\n else {\n return rectanglesForRange(view, className, range);\n }\n }\n}\nfunction getBase(view) {\n let rect = view.scrollDOM.getBoundingClientRect();\n let left = view.textDirection == Direction.LTR ? rect.left : rect.right - view.scrollDOM.clientWidth * view.scaleX;\n return { left: left - view.scrollDOM.scrollLeft * view.scaleX, top: rect.top - view.scrollDOM.scrollTop * view.scaleY };\n}\nfunction wrappedLine(view, pos, inside) {\n let range = EditorSelection.cursor(pos);\n return { from: Math.max(inside.from, view.moveToLineBoundary(range, false, true).from),\n to: Math.min(inside.to, view.moveToLineBoundary(range, true, true).from),\n type: BlockType.Text };\n}\nfunction rectanglesForRange(view, className, range) {\n if (range.to <= view.viewport.from || range.from >= view.viewport.to)\n return [];\n let from = Math.max(range.from, view.viewport.from), to = Math.min(range.to, view.viewport.to);\n let ltr = view.textDirection == Direction.LTR;\n let content = view.contentDOM, contentRect = content.getBoundingClientRect(), base = getBase(view);\n let lineElt = content.querySelector(\".cm-line\"), lineStyle = lineElt && window.getComputedStyle(lineElt);\n let leftSide = contentRect.left +\n (lineStyle ? parseInt(lineStyle.paddingLeft) + Math.min(0, parseInt(lineStyle.textIndent)) : 0);\n let rightSide = contentRect.right - (lineStyle ? parseInt(lineStyle.paddingRight) : 0);\n let startBlock = blockAt(view, from), endBlock = blockAt(view, to);\n let visualStart = startBlock.type == BlockType.Text ? startBlock : null;\n let visualEnd = endBlock.type == BlockType.Text ? endBlock : null;\n if (visualStart && (view.lineWrapping || startBlock.widgetLineBreaks))\n visualStart = wrappedLine(view, from, visualStart);\n if (visualEnd && (view.lineWrapping || endBlock.widgetLineBreaks))\n visualEnd = wrappedLine(view, to, visualEnd);\n if (visualStart && visualEnd && visualStart.from == visualEnd.from) {\n return pieces(drawForLine(range.from, range.to, visualStart));\n }\n else {\n let top = visualStart ? drawForLine(range.from, null, visualStart) : drawForWidget(startBlock, false);\n let bottom = visualEnd ? drawForLine(null, range.to, visualEnd) : drawForWidget(endBlock, true);\n let between = [];\n if ((visualStart || startBlock).to < (visualEnd || endBlock).from - (visualStart && visualEnd ? 1 : 0) ||\n startBlock.widgetLineBreaks > 1 && top.bottom + view.defaultLineHeight / 2 < bottom.top)\n between.push(piece(leftSide, top.bottom, rightSide, bottom.top));\n else if (top.bottom < bottom.top && view.elementAtHeight((top.bottom + bottom.top) / 2).type == BlockType.Text)\n top.bottom = bottom.top = (top.bottom + bottom.top) / 2;\n return pieces(top).concat(between).concat(pieces(bottom));\n }\n function piece(left, top, right, bottom) {\n return new RectangleMarker(className, left - base.left, top - base.top - 0.01 /* C.Epsilon */, right - left, bottom - top + 0.01 /* C.Epsilon */);\n }\n function pieces({ top, bottom, horizontal }) {\n let pieces = [];\n for (let i = 0; i < horizontal.length; i += 2)\n pieces.push(piece(horizontal[i], top, horizontal[i + 1], bottom));\n return pieces;\n }\n // Gets passed from/to in line-local positions\n function drawForLine(from, to, line) {\n let top = 1e9, bottom = -1e9, horizontal = [];\n function addSpan(from, fromOpen, to, toOpen, dir) {\n // Passing 2/-2 is a kludge to force the view to return\n // coordinates on the proper side of block widgets, since\n // normalizing the side there, though appropriate for most\n // coordsAtPos queries, would break selection drawing.\n let fromCoords = view.coordsAtPos(from, (from == line.to ? -2 : 2));\n let toCoords = view.coordsAtPos(to, (to == line.from ? 2 : -2));\n if (!fromCoords || !toCoords)\n return;\n top = Math.min(fromCoords.top, toCoords.top, top);\n bottom = Math.max(fromCoords.bottom, toCoords.bottom, bottom);\n if (dir == Direction.LTR)\n horizontal.push(ltr && fromOpen ? leftSide : fromCoords.left, ltr && toOpen ? rightSide : toCoords.right);\n else\n horizontal.push(!ltr && toOpen ? leftSide : toCoords.left, !ltr && fromOpen ? rightSide : fromCoords.right);\n }\n let start = from !== null && from !== void 0 ? from : line.from, end = to !== null && to !== void 0 ? to : line.to;\n // Split the range by visible range and document line\n for (let r of view.visibleRanges)\n if (r.to > start && r.from < end) {\n for (let pos = Math.max(r.from, start), endPos = Math.min(r.to, end);;) {\n let docLine = view.state.doc.lineAt(pos);\n for (let span of view.bidiSpans(docLine)) {\n let spanFrom = span.from + docLine.from, spanTo = span.to + docLine.from;\n if (spanFrom >= endPos)\n break;\n if (spanTo > pos)\n addSpan(Math.max(spanFrom, pos), from == null && spanFrom <= start, Math.min(spanTo, endPos), to == null && spanTo >= end, span.dir);\n }\n pos = docLine.to + 1;\n if (pos >= endPos)\n break;\n }\n }\n if (horizontal.length == 0)\n addSpan(start, from == null, end, to == null, view.textDirection);\n return { top, bottom, horizontal };\n }\n function drawForWidget(block, top) {\n let y = contentRect.top + (top ? block.top : block.bottom);\n return { top: y, bottom: y, horizontal: [] };\n }\n}\nfunction sameMarker(a, b) {\n return a.constructor == b.constructor && a.eq(b);\n}\nclass LayerView {\n constructor(view, layer) {\n this.view = view;\n this.layer = layer;\n this.drawn = [];\n this.scaleX = 1;\n this.scaleY = 1;\n this.measureReq = { read: this.measure.bind(this), write: this.draw.bind(this) };\n this.dom = view.scrollDOM.appendChild(document.createElement(\"div\"));\n this.dom.classList.add(\"cm-layer\");\n if (layer.above)\n this.dom.classList.add(\"cm-layer-above\");\n if (layer.class)\n this.dom.classList.add(layer.class);\n this.scale();\n this.dom.setAttribute(\"aria-hidden\", \"true\");\n this.setOrder(view.state);\n view.requestMeasure(this.measureReq);\n if (layer.mount)\n layer.mount(this.dom, view);\n }\n update(update) {\n if (update.startState.facet(layerOrder) != update.state.facet(layerOrder))\n this.setOrder(update.state);\n if (this.layer.update(update, this.dom) || update.geometryChanged) {\n this.scale();\n update.view.requestMeasure(this.measureReq);\n }\n }\n setOrder(state) {\n let pos = 0, order = state.facet(layerOrder);\n while (pos < order.length && order[pos] != this.layer)\n pos++;\n this.dom.style.zIndex = String((this.layer.above ? 150 : -1) - pos);\n }\n measure() {\n return this.layer.markers(this.view);\n }\n scale() {\n let { scaleX, scaleY } = this.view;\n if (scaleX != this.scaleX || scaleY != this.scaleY) {\n this.scaleX = scaleX;\n this.scaleY = scaleY;\n this.dom.style.transform = `scale(${1 / scaleX}, ${1 / scaleY})`;\n }\n }\n draw(markers) {\n if (markers.length != this.drawn.length || markers.some((p, i) => !sameMarker(p, this.drawn[i]))) {\n let old = this.dom.firstChild, oldI = 0;\n for (let marker of markers) {\n if (marker.update && old && marker.constructor && this.drawn[oldI].constructor &&\n marker.update(old, this.drawn[oldI])) {\n old = old.nextSibling;\n oldI++;\n }\n else {\n this.dom.insertBefore(marker.draw(), old);\n }\n }\n while (old) {\n let next = old.nextSibling;\n old.remove();\n old = next;\n }\n this.drawn = markers;\n }\n }\n destroy() {\n if (this.layer.destroy)\n this.layer.destroy(this.dom, this.view);\n this.dom.remove();\n }\n}\nconst layerOrder = /*@__PURE__*/Facet.define();\n/**\nDefine a layer.\n*/\nfunction layer(config) {\n return [\n ViewPlugin.define(v => new LayerView(v, config)),\n layerOrder.of(config)\n ];\n}\n\nconst CanHidePrimary = !browser.ios; // FIXME test IE\nconst selectionConfig = /*@__PURE__*/Facet.define({\n combine(configs) {\n return combineConfig(configs, {\n cursorBlinkRate: 1200,\n drawRangeCursor: true\n }, {\n cursorBlinkRate: (a, b) => Math.min(a, b),\n drawRangeCursor: (a, b) => a || b\n });\n }\n});\n/**\nReturns an extension that hides the browser's native selection and\ncursor, replacing the selection with a background behind the text\n(with the `cm-selectionBackground` class), and the\ncursors with elements overlaid over the code (using\n`cm-cursor-primary` and `cm-cursor-secondary`).\n\nThis allows the editor to display secondary selection ranges, and\ntends to produce a type of selection more in line with that users\nexpect in a text editor (the native selection styling will often\nleave gaps between lines and won't fill the horizontal space after\na line when the selection continues past it).\n\nIt does have a performance cost, in that it requires an extra DOM\nlayout cycle for many updates (the selection is drawn based on DOM\nlayout information that's only available after laying out the\ncontent).\n*/\nfunction drawSelection(config = {}) {\n return [\n selectionConfig.of(config),\n cursorLayer,\n selectionLayer,\n hideNativeSelection,\n nativeSelectionHidden.of(true)\n ];\n}\n/**\nRetrieve the [`drawSelection`](https://codemirror.net/6/docs/ref/#view.drawSelection) configuration\nfor this state. (Note that this will return a set of defaults even\nif `drawSelection` isn't enabled.)\n*/\nfunction getDrawSelectionConfig(state) {\n return state.facet(selectionConfig);\n}\nfunction configChanged(update) {\n return update.startState.facet(selectionConfig) != update.state.facet(selectionConfig);\n}\nconst cursorLayer = /*@__PURE__*/layer({\n above: true,\n markers(view) {\n let { state } = view, conf = state.facet(selectionConfig);\n let cursors = [];\n for (let r of state.selection.ranges) {\n let prim = r == state.selection.main;\n if (r.empty ? !prim || CanHidePrimary : conf.drawRangeCursor) {\n let className = prim ? \"cm-cursor cm-cursor-primary\" : \"cm-cursor cm-cursor-secondary\";\n let cursor = r.empty ? r : EditorSelection.cursor(r.head, r.head > r.anchor ? -1 : 1);\n for (let piece of RectangleMarker.forRange(view, className, cursor))\n cursors.push(piece);\n }\n }\n return cursors;\n },\n update(update, dom) {\n if (update.transactions.some(tr => tr.selection))\n dom.style.animationName = dom.style.animationName == \"cm-blink\" ? \"cm-blink2\" : \"cm-blink\";\n let confChange = configChanged(update);\n if (confChange)\n setBlinkRate(update.state, dom);\n return update.docChanged || update.selectionSet || confChange;\n },\n mount(dom, view) {\n setBlinkRate(view.state, dom);\n },\n class: \"cm-cursorLayer\"\n});\nfunction setBlinkRate(state, dom) {\n dom.style.animationDuration = state.facet(selectionConfig).cursorBlinkRate + \"ms\";\n}\nconst selectionLayer = /*@__PURE__*/layer({\n above: false,\n markers(view) {\n return view.state.selection.ranges.map(r => r.empty ? [] : RectangleMarker.forRange(view, \"cm-selectionBackground\", r))\n .reduce((a, b) => a.concat(b));\n },\n update(update, dom) {\n return update.docChanged || update.selectionSet || update.viewportChanged || configChanged(update);\n },\n class: \"cm-selectionLayer\"\n});\nconst themeSpec = {\n \".cm-line\": {\n \"& ::selection\": { backgroundColor: \"transparent !important\" },\n \"&::selection\": { backgroundColor: \"transparent !important\" }\n }\n};\nif (CanHidePrimary)\n themeSpec[\".cm-line\"].caretColor = \"transparent !important\";\nconst hideNativeSelection = /*@__PURE__*/Prec.highest(/*@__PURE__*/EditorView.theme(themeSpec));\n\nconst setDropCursorPos = /*@__PURE__*/StateEffect.define({\n map(pos, mapping) { return pos == null ? null : mapping.mapPos(pos); }\n});\nconst dropCursorPos = /*@__PURE__*/StateField.define({\n create() { return null; },\n update(pos, tr) {\n if (pos != null)\n pos = tr.changes.mapPos(pos);\n return tr.effects.reduce((pos, e) => e.is(setDropCursorPos) ? e.value : pos, pos);\n }\n});\nconst drawDropCursor = /*@__PURE__*/ViewPlugin.fromClass(class {\n constructor(view) {\n this.view = view;\n this.cursor = null;\n this.measureReq = { read: this.readPos.bind(this), write: this.drawCursor.bind(this) };\n }\n update(update) {\n var _a;\n let cursorPos = update.state.field(dropCursorPos);\n if (cursorPos == null) {\n if (this.cursor != null) {\n (_a = this.cursor) === null || _a === void 0 ? void 0 : _a.remove();\n this.cursor = null;\n }\n }\n else {\n if (!this.cursor) {\n this.cursor = this.view.scrollDOM.appendChild(document.createElement(\"div\"));\n this.cursor.className = \"cm-dropCursor\";\n }\n if (update.startState.field(dropCursorPos) != cursorPos || update.docChanged || update.geometryChanged)\n this.view.requestMeasure(this.measureReq);\n }\n }\n readPos() {\n let { view } = this;\n let pos = view.state.field(dropCursorPos);\n let rect = pos != null && view.coordsAtPos(pos);\n if (!rect)\n return null;\n let outer = view.scrollDOM.getBoundingClientRect();\n return {\n left: rect.left - outer.left + view.scrollDOM.scrollLeft * view.scaleX,\n top: rect.top - outer.top + view.scrollDOM.scrollTop * view.scaleY,\n height: rect.bottom - rect.top\n };\n }\n drawCursor(pos) {\n if (this.cursor) {\n let { scaleX, scaleY } = this.view;\n if (pos) {\n this.cursor.style.left = pos.left / scaleX + \"px\";\n this.cursor.style.top = pos.top / scaleY + \"px\";\n this.cursor.style.height = pos.height / scaleY + \"px\";\n }\n else {\n this.cursor.style.left = \"-100000px\";\n }\n }\n }\n destroy() {\n if (this.cursor)\n this.cursor.remove();\n }\n setDropPos(pos) {\n if (this.view.state.field(dropCursorPos) != pos)\n this.view.dispatch({ effects: setDropCursorPos.of(pos) });\n }\n}, {\n eventObservers: {\n dragover(event) {\n this.setDropPos(this.view.posAtCoords({ x: event.clientX, y: event.clientY }));\n },\n dragleave(event) {\n if (event.target == this.view.contentDOM || !this.view.contentDOM.contains(event.relatedTarget))\n this.setDropPos(null);\n },\n dragend() {\n this.setDropPos(null);\n },\n drop() {\n this.setDropPos(null);\n }\n }\n});\n/**\nDraws a cursor at the current drop position when something is\ndragged over the editor.\n*/\nfunction dropCursor() {\n return [dropCursorPos, drawDropCursor];\n}\n\nfunction iterMatches(doc, re, from, to, f) {\n re.lastIndex = 0;\n for (let cursor = doc.iterRange(from, to), pos = from, m; !cursor.next().done; pos += cursor.value.length) {\n if (!cursor.lineBreak)\n while (m = re.exec(cursor.value))\n f(pos + m.index, m);\n }\n}\nfunction matchRanges(view, maxLength) {\n let visible = view.visibleRanges;\n if (visible.length == 1 && visible[0].from == view.viewport.from &&\n visible[0].to == view.viewport.to)\n return visible;\n let result = [];\n for (let { from, to } of visible) {\n from = Math.max(view.state.doc.lineAt(from).from, from - maxLength);\n to = Math.min(view.state.doc.lineAt(to).to, to + maxLength);\n if (result.length && result[result.length - 1].to >= from)\n result[result.length - 1].to = to;\n else\n result.push({ from, to });\n }\n return result;\n}\n/**\nHelper class used to make it easier to maintain decorations on\nvisible code that matches a given regular expression. To be used\nin a [view plugin](https://codemirror.net/6/docs/ref/#view.ViewPlugin). Instances of this object\nrepresent a matching configuration.\n*/\nclass MatchDecorator {\n /**\n Create a decorator.\n */\n constructor(config) {\n const { regexp, decoration, decorate, boundary, maxLength = 1000 } = config;\n if (!regexp.global)\n throw new RangeError(\"The regular expression given to MatchDecorator should have its 'g' flag set\");\n this.regexp = regexp;\n if (decorate) {\n this.addMatch = (match, view, from, add) => decorate(add, from, from + match[0].length, match, view);\n }\n else if (typeof decoration == \"function\") {\n this.addMatch = (match, view, from, add) => {\n let deco = decoration(match, view, from);\n if (deco)\n add(from, from + match[0].length, deco);\n };\n }\n else if (decoration) {\n this.addMatch = (match, _view, from, add) => add(from, from + match[0].length, decoration);\n }\n else {\n throw new RangeError(\"Either 'decorate' or 'decoration' should be provided to MatchDecorator\");\n }\n this.boundary = boundary;\n this.maxLength = maxLength;\n }\n /**\n Compute the full set of decorations for matches in the given\n view's viewport. You'll want to call this when initializing your\n plugin.\n */\n createDeco(view) {\n let build = new RangeSetBuilder(), add = build.add.bind(build);\n for (let { from, to } of matchRanges(view, this.maxLength))\n iterMatches(view.state.doc, this.regexp, from, to, (from, m) => this.addMatch(m, view, from, add));\n return build.finish();\n }\n /**\n Update a set of decorations for a view update. `deco` _must_ be\n the set of decorations produced by _this_ `MatchDecorator` for\n the view state before the update.\n */\n updateDeco(update, deco) {\n let changeFrom = 1e9, changeTo = -1;\n if (update.docChanged)\n update.changes.iterChanges((_f, _t, from, to) => {\n if (to > update.view.viewport.from && from < update.view.viewport.to) {\n changeFrom = Math.min(from, changeFrom);\n changeTo = Math.max(to, changeTo);\n }\n });\n if (update.viewportChanged || changeTo - changeFrom > 1000)\n return this.createDeco(update.view);\n if (changeTo > -1)\n return this.updateRange(update.view, deco.map(update.changes), changeFrom, changeTo);\n return deco;\n }\n updateRange(view, deco, updateFrom, updateTo) {\n for (let r of view.visibleRanges) {\n let from = Math.max(r.from, updateFrom), to = Math.min(r.to, updateTo);\n if (to > from) {\n let fromLine = view.state.doc.lineAt(from), toLine = fromLine.to < to ? view.state.doc.lineAt(to) : fromLine;\n let start = Math.max(r.from, fromLine.from), end = Math.min(r.to, toLine.to);\n if (this.boundary) {\n for (; from > fromLine.from; from--)\n if (this.boundary.test(fromLine.text[from - 1 - fromLine.from])) {\n start = from;\n break;\n }\n for (; to < toLine.to; to++)\n if (this.boundary.test(toLine.text[to - toLine.from])) {\n end = to;\n break;\n }\n }\n let ranges = [], m;\n let add = (from, to, deco) => ranges.push(deco.range(from, to));\n if (fromLine == toLine) {\n this.regexp.lastIndex = start - fromLine.from;\n while ((m = this.regexp.exec(fromLine.text)) && m.index < end - fromLine.from)\n this.addMatch(m, view, m.index + fromLine.from, add);\n }\n else {\n iterMatches(view.state.doc, this.regexp, start, end, (from, m) => this.addMatch(m, view, from, add));\n }\n deco = deco.update({ filterFrom: start, filterTo: end, filter: (from, to) => from < start || to > end, add: ranges });\n }\n }\n return deco;\n }\n}\n\nconst UnicodeRegexpSupport = /x/.unicode != null ? \"gu\" : \"g\";\nconst Specials = /*@__PURE__*/new RegExp(\"[\\u0000-\\u0008\\u000a-\\u001f\\u007f-\\u009f\\u00ad\\u061c\\u200b\\u200e\\u200f\\u2028\\u2029\\u202d\\u202e\\u2066\\u2067\\u2069\\ufeff\\ufff9-\\ufffc]\", UnicodeRegexpSupport);\nconst Names = {\n 0: \"null\",\n 7: \"bell\",\n 8: \"backspace\",\n 10: \"newline\",\n 11: \"vertical tab\",\n 13: \"carriage return\",\n 27: \"escape\",\n 8203: \"zero width space\",\n 8204: \"zero width non-joiner\",\n 8205: \"zero width joiner\",\n 8206: \"left-to-right mark\",\n 8207: \"right-to-left mark\",\n 8232: \"line separator\",\n 8237: \"left-to-right override\",\n 8238: \"right-to-left override\",\n 8294: \"left-to-right isolate\",\n 8295: \"right-to-left isolate\",\n 8297: \"pop directional isolate\",\n 8233: \"paragraph separator\",\n 65279: \"zero width no-break space\",\n 65532: \"object replacement\"\n};\nlet _supportsTabSize = null;\nfunction supportsTabSize() {\n var _a;\n if (_supportsTabSize == null && typeof document != \"undefined\" && document.body) {\n let styles = document.body.style;\n _supportsTabSize = ((_a = styles.tabSize) !== null && _a !== void 0 ? _a : styles.MozTabSize) != null;\n }\n return _supportsTabSize || false;\n}\nconst specialCharConfig = /*@__PURE__*/Facet.define({\n combine(configs) {\n let config = combineConfig(configs, {\n render: null,\n specialChars: Specials,\n addSpecialChars: null\n });\n if (config.replaceTabs = !supportsTabSize())\n config.specialChars = new RegExp(\"\\t|\" + config.specialChars.source, UnicodeRegexpSupport);\n if (config.addSpecialChars)\n config.specialChars = new RegExp(config.specialChars.source + \"|\" + config.addSpecialChars.source, UnicodeRegexpSupport);\n return config;\n }\n});\n/**\nReturns an extension that installs highlighting of special\ncharacters.\n*/\nfunction highlightSpecialChars(\n/**\nConfiguration options.\n*/\nconfig = {}) {\n return [specialCharConfig.of(config), specialCharPlugin()];\n}\nlet _plugin = null;\nfunction specialCharPlugin() {\n return _plugin || (_plugin = ViewPlugin.fromClass(class {\n constructor(view) {\n this.view = view;\n this.decorations = Decoration.none;\n this.decorationCache = Object.create(null);\n this.decorator = this.makeDecorator(view.state.facet(specialCharConfig));\n this.decorations = this.decorator.createDeco(view);\n }\n makeDecorator(conf) {\n return new MatchDecorator({\n regexp: conf.specialChars,\n decoration: (m, view, pos) => {\n let { doc } = view.state;\n let code = codePointAt(m[0], 0);\n if (code == 9) {\n let line = doc.lineAt(pos);\n let size = view.state.tabSize, col = countColumn(line.text, size, pos - line.from);\n return Decoration.replace({\n widget: new TabWidget((size - (col % size)) * this.view.defaultCharacterWidth / this.view.scaleX)\n });\n }\n return this.decorationCache[code] ||\n (this.decorationCache[code] = Decoration.replace({ widget: new SpecialCharWidget(conf, code) }));\n },\n boundary: conf.replaceTabs ? undefined : /[^]/\n });\n }\n update(update) {\n let conf = update.state.facet(specialCharConfig);\n if (update.startState.facet(specialCharConfig) != conf) {\n this.decorator = this.makeDecorator(conf);\n this.decorations = this.decorator.createDeco(update.view);\n }\n else {\n this.decorations = this.decorator.updateDeco(update, this.decorations);\n }\n }\n }, {\n decorations: v => v.decorations\n }));\n}\nconst DefaultPlaceholder = \"\\u2022\";\n// Assigns placeholder characters from the Control Pictures block to\n// ASCII control characters\nfunction placeholder$1(code) {\n if (code >= 32)\n return DefaultPlaceholder;\n if (code == 10)\n return \"\\u2424\";\n return String.fromCharCode(9216 + code);\n}\nclass SpecialCharWidget extends WidgetType {\n constructor(options, code) {\n super();\n this.options = options;\n this.code = code;\n }\n eq(other) { return other.code == this.code; }\n toDOM(view) {\n let ph = placeholder$1(this.code);\n let desc = view.state.phrase(\"Control character\") + \" \" + (Names[this.code] || \"0x\" + this.code.toString(16));\n let custom = this.options.render && this.options.render(this.code, desc, ph);\n if (custom)\n return custom;\n let span = document.createElement(\"span\");\n span.textContent = ph;\n span.title = desc;\n span.setAttribute(\"aria-label\", desc);\n span.className = \"cm-specialChar\";\n return span;\n }\n ignoreEvent() { return false; }\n}\nclass TabWidget extends WidgetType {\n constructor(width) {\n super();\n this.width = width;\n }\n eq(other) { return other.width == this.width; }\n toDOM() {\n let span = document.createElement(\"span\");\n span.textContent = \"\\t\";\n span.className = \"cm-tab\";\n span.style.width = this.width + \"px\";\n return span;\n }\n ignoreEvent() { return false; }\n}\n\nconst plugin = /*@__PURE__*/ViewPlugin.fromClass(class {\n constructor() {\n this.height = 1000;\n this.attrs = { style: \"padding-bottom: 1000px\" };\n }\n update(update) {\n let { view } = update;\n let height = view.viewState.editorHeight * view.scaleY -\n view.defaultLineHeight - view.documentPadding.top - 0.5;\n if (height >= 0 && height != this.height) {\n this.height = height;\n this.attrs = { style: `padding-bottom: ${height}px` };\n }\n }\n});\n/**\nReturns an extension that makes sure the content has a bottom\nmargin equivalent to the height of the editor, minus one line\nheight, so that every line in the document can be scrolled to the\ntop of the editor.\n\nThis is only meaningful when the editor is scrollable, and should\nnot be enabled in editors that take the size of their content.\n*/\nfunction scrollPastEnd() {\n return [plugin, contentAttributes.of(view => { var _a; return ((_a = view.plugin(plugin)) === null || _a === void 0 ? void 0 : _a.attrs) || null; })];\n}\n\n/**\nMark lines that have a cursor on them with the `\"cm-activeLine\"`\nDOM class.\n*/\nfunction highlightActiveLine() {\n return activeLineHighlighter;\n}\nconst lineDeco = /*@__PURE__*/Decoration.line({ class: \"cm-activeLine\" });\nconst activeLineHighlighter = /*@__PURE__*/ViewPlugin.fromClass(class {\n constructor(view) {\n this.decorations = this.getDeco(view);\n }\n update(update) {\n if (update.docChanged || update.selectionSet)\n this.decorations = this.getDeco(update.view);\n }\n getDeco(view) {\n let lastLineStart = -1, deco = [];\n for (let r of view.state.selection.ranges) {\n let line = view.lineBlockAt(r.head);\n if (line.from > lastLineStart) {\n deco.push(lineDeco.range(line.from));\n lastLineStart = line.from;\n }\n }\n return Decoration.set(deco);\n }\n}, {\n decorations: v => v.decorations\n});\n\nclass Placeholder extends WidgetType {\n constructor(content) {\n super();\n this.content = content;\n }\n toDOM() {\n let wrap = document.createElement(\"span\");\n wrap.className = \"cm-placeholder\";\n wrap.style.pointerEvents = \"none\";\n wrap.appendChild(typeof this.content == \"string\" ? document.createTextNode(this.content) : this.content);\n if (typeof this.content == \"string\")\n wrap.setAttribute(\"aria-label\", \"placeholder \" + this.content);\n else\n wrap.setAttribute(\"aria-hidden\", \"true\");\n return wrap;\n }\n coordsAt(dom) {\n let rects = dom.firstChild ? clientRectsFor(dom.firstChild) : [];\n if (!rects.length)\n return null;\n let style = window.getComputedStyle(dom.parentNode);\n let rect = flattenRect(rects[0], style.direction != \"rtl\");\n let lineHeight = parseInt(style.lineHeight);\n if (rect.bottom - rect.top > lineHeight * 1.5)\n return { left: rect.left, right: rect.right, top: rect.top, bottom: rect.top + lineHeight };\n return rect;\n }\n ignoreEvent() { return false; }\n}\n/**\nExtension that enables a placeholder—a piece of example content\nto show when the editor is empty.\n*/\nfunction placeholder(content) {\n return ViewPlugin.fromClass(class {\n constructor(view) {\n this.view = view;\n this.placeholder = content\n ? Decoration.set([Decoration.widget({ widget: new Placeholder(content), side: 1 }).range(0)])\n : Decoration.none;\n }\n get decorations() { return this.view.state.doc.length ? Decoration.none : this.placeholder; }\n }, { decorations: v => v.decorations });\n}\n\n// Don't compute precise column positions for line offsets above this\n// (since it could get expensive). Assume offset==column for them.\nconst MaxOff = 2000;\nfunction rectangleFor(state, a, b) {\n let startLine = Math.min(a.line, b.line), endLine = Math.max(a.line, b.line);\n let ranges = [];\n if (a.off > MaxOff || b.off > MaxOff || a.col < 0 || b.col < 0) {\n let startOff = Math.min(a.off, b.off), endOff = Math.max(a.off, b.off);\n for (let i = startLine; i <= endLine; i++) {\n let line = state.doc.line(i);\n if (line.length <= endOff)\n ranges.push(EditorSelection.range(line.from + startOff, line.to + endOff));\n }\n }\n else {\n let startCol = Math.min(a.col, b.col), endCol = Math.max(a.col, b.col);\n for (let i = startLine; i <= endLine; i++) {\n let line = state.doc.line(i);\n let start = findColumn(line.text, startCol, state.tabSize, true);\n if (start < 0) {\n ranges.push(EditorSelection.cursor(line.to));\n }\n else {\n let end = findColumn(line.text, endCol, state.tabSize);\n ranges.push(EditorSelection.range(line.from + start, line.from + end));\n }\n }\n }\n return ranges;\n}\nfunction absoluteColumn(view, x) {\n let ref = view.coordsAtPos(view.viewport.from);\n return ref ? Math.round(Math.abs((ref.left - x) / view.defaultCharacterWidth)) : -1;\n}\nfunction getPos(view, event) {\n let offset = view.posAtCoords({ x: event.clientX, y: event.clientY }, false);\n let line = view.state.doc.lineAt(offset), off = offset - line.from;\n let col = off > MaxOff ? -1\n : off == line.length ? absoluteColumn(view, event.clientX)\n : countColumn(line.text, view.state.tabSize, offset - line.from);\n return { line: line.number, col, off };\n}\nfunction rectangleSelectionStyle(view, event) {\n let start = getPos(view, event), startSel = view.state.selection;\n if (!start)\n return null;\n return {\n update(update) {\n if (update.docChanged) {\n let newStart = update.changes.mapPos(update.startState.doc.line(start.line).from);\n let newLine = update.state.doc.lineAt(newStart);\n start = { line: newLine.number, col: start.col, off: Math.min(start.off, newLine.length) };\n startSel = startSel.map(update.changes);\n }\n },\n get(event, _extend, multiple) {\n let cur = getPos(view, event);\n if (!cur)\n return startSel;\n let ranges = rectangleFor(view.state, start, cur);\n if (!ranges.length)\n return startSel;\n if (multiple)\n return EditorSelection.create(ranges.concat(startSel.ranges));\n else\n return EditorSelection.create(ranges);\n }\n };\n}\n/**\nCreate an extension that enables rectangular selections. By\ndefault, it will react to left mouse drag with the Alt key held\ndown. When such a selection occurs, the text within the rectangle\nthat was dragged over will be selected, as one selection\n[range](https://codemirror.net/6/docs/ref/#state.SelectionRange) per line.\n*/\nfunction rectangularSelection(options) {\n let filter = (options === null || options === void 0 ? void 0 : options.eventFilter) || (e => e.altKey && e.button == 0);\n return EditorView.mouseSelectionStyle.of((view, event) => filter(event) ? rectangleSelectionStyle(view, event) : null);\n}\nconst keys = {\n Alt: [18, e => !!e.altKey],\n Control: [17, e => !!e.ctrlKey],\n Shift: [16, e => !!e.shiftKey],\n Meta: [91, e => !!e.metaKey]\n};\nconst showCrosshair = { style: \"cursor: crosshair\" };\n/**\nReturns an extension that turns the pointer cursor into a\ncrosshair when a given modifier key, defaulting to Alt, is held\ndown. Can serve as a visual hint that rectangular selection is\ngoing to happen when paired with\n[`rectangularSelection`](https://codemirror.net/6/docs/ref/#view.rectangularSelection).\n*/\nfunction crosshairCursor(options = {}) {\n let [code, getter] = keys[options.key || \"Alt\"];\n let plugin = ViewPlugin.fromClass(class {\n constructor(view) {\n this.view = view;\n this.isDown = false;\n }\n set(isDown) {\n if (this.isDown != isDown) {\n this.isDown = isDown;\n this.view.update([]);\n }\n }\n }, {\n eventObservers: {\n keydown(e) {\n this.set(e.keyCode == code || getter(e));\n },\n keyup(e) {\n if (e.keyCode == code || !getter(e))\n this.set(false);\n },\n mousemove(e) {\n this.set(getter(e));\n }\n }\n });\n return [\n plugin,\n EditorView.contentAttributes.of(view => { var _a; return ((_a = view.plugin(plugin)) === null || _a === void 0 ? void 0 : _a.isDown) ? showCrosshair : null; })\n ];\n}\n\nconst Outside = \"-10000px\";\nclass TooltipViewManager {\n constructor(view, facet, createTooltipView) {\n this.facet = facet;\n this.createTooltipView = createTooltipView;\n this.input = view.state.facet(facet);\n this.tooltips = this.input.filter(t => t);\n this.tooltipViews = this.tooltips.map(createTooltipView);\n }\n update(update, above) {\n var _a;\n let input = update.state.facet(this.facet);\n let tooltips = input.filter(x => x);\n if (input === this.input) {\n for (let t of this.tooltipViews)\n if (t.update)\n t.update(update);\n return false;\n }\n let tooltipViews = [], newAbove = above ? [] : null;\n for (let i = 0; i < tooltips.length; i++) {\n let tip = tooltips[i], known = -1;\n if (!tip)\n continue;\n for (let i = 0; i < this.tooltips.length; i++) {\n let other = this.tooltips[i];\n if (other && other.create == tip.create)\n known = i;\n }\n if (known < 0) {\n tooltipViews[i] = this.createTooltipView(tip);\n if (newAbove)\n newAbove[i] = !!tip.above;\n }\n else {\n let tooltipView = tooltipViews[i] = this.tooltipViews[known];\n if (newAbove)\n newAbove[i] = above[known];\n if (tooltipView.update)\n tooltipView.update(update);\n }\n }\n for (let t of this.tooltipViews)\n if (tooltipViews.indexOf(t) < 0) {\n t.dom.remove();\n (_a = t.destroy) === null || _a === void 0 ? void 0 : _a.call(t);\n }\n if (above) {\n newAbove.forEach((val, i) => above[i] = val);\n above.length = newAbove.length;\n }\n this.input = input;\n this.tooltips = tooltips;\n this.tooltipViews = tooltipViews;\n return true;\n }\n}\n/**\nCreates an extension that configures tooltip behavior.\n*/\nfunction tooltips(config = {}) {\n return tooltipConfig.of(config);\n}\nfunction windowSpace(view) {\n let { win } = view;\n return { top: 0, left: 0, bottom: win.innerHeight, right: win.innerWidth };\n}\nconst tooltipConfig = /*@__PURE__*/Facet.define({\n combine: values => {\n var _a, _b, _c;\n return ({\n position: browser.ios ? \"absolute\" : ((_a = values.find(conf => conf.position)) === null || _a === void 0 ? void 0 : _a.position) || \"fixed\",\n parent: ((_b = values.find(conf => conf.parent)) === null || _b === void 0 ? void 0 : _b.parent) || null,\n tooltipSpace: ((_c = values.find(conf => conf.tooltipSpace)) === null || _c === void 0 ? void 0 : _c.tooltipSpace) || windowSpace,\n });\n }\n});\nconst knownHeight = /*@__PURE__*/new WeakMap();\nconst tooltipPlugin = /*@__PURE__*/ViewPlugin.fromClass(class {\n constructor(view) {\n this.view = view;\n this.above = [];\n this.inView = true;\n this.madeAbsolute = false;\n this.lastTransaction = 0;\n this.measureTimeout = -1;\n let config = view.state.facet(tooltipConfig);\n this.position = config.position;\n this.parent = config.parent;\n this.classes = view.themeClasses;\n this.createContainer();\n this.measureReq = { read: this.readMeasure.bind(this), write: this.writeMeasure.bind(this), key: this };\n this.manager = new TooltipViewManager(view, showTooltip, t => this.createTooltip(t));\n this.intersectionObserver = typeof IntersectionObserver == \"function\" ? new IntersectionObserver(entries => {\n if (Date.now() > this.lastTransaction - 50 &&\n entries.length > 0 && entries[entries.length - 1].intersectionRatio < 1)\n this.measureSoon();\n }, { threshold: [1] }) : null;\n this.observeIntersection();\n view.win.addEventListener(\"resize\", this.measureSoon = this.measureSoon.bind(this));\n this.maybeMeasure();\n }\n createContainer() {\n if (this.parent) {\n this.container = document.createElement(\"div\");\n this.container.style.position = \"relative\";\n this.container.className = this.view.themeClasses;\n this.parent.appendChild(this.container);\n }\n else {\n this.container = this.view.dom;\n }\n }\n observeIntersection() {\n if (this.intersectionObserver) {\n this.intersectionObserver.disconnect();\n for (let tooltip of this.manager.tooltipViews)\n this.intersectionObserver.observe(tooltip.dom);\n }\n }\n measureSoon() {\n if (this.measureTimeout < 0)\n this.measureTimeout = setTimeout(() => {\n this.measureTimeout = -1;\n this.maybeMeasure();\n }, 50);\n }\n update(update) {\n if (update.transactions.length)\n this.lastTransaction = Date.now();\n let updated = this.manager.update(update, this.above);\n if (updated)\n this.observeIntersection();\n let shouldMeasure = updated || update.geometryChanged;\n let newConfig = update.state.facet(tooltipConfig);\n if (newConfig.position != this.position && !this.madeAbsolute) {\n this.position = newConfig.position;\n for (let t of this.manager.tooltipViews)\n t.dom.style.position = this.position;\n shouldMeasure = true;\n }\n if (newConfig.parent != this.parent) {\n if (this.parent)\n this.container.remove();\n this.parent = newConfig.parent;\n this.createContainer();\n for (let t of this.manager.tooltipViews)\n this.container.appendChild(t.dom);\n shouldMeasure = true;\n }\n else if (this.parent && this.view.themeClasses != this.classes) {\n this.classes = this.container.className = this.view.themeClasses;\n }\n if (shouldMeasure)\n this.maybeMeasure();\n }\n createTooltip(tooltip) {\n let tooltipView = tooltip.create(this.view);\n tooltipView.dom.classList.add(\"cm-tooltip\");\n if (tooltip.arrow && !tooltipView.dom.querySelector(\".cm-tooltip > .cm-tooltip-arrow\")) {\n let arrow = document.createElement(\"div\");\n arrow.className = \"cm-tooltip-arrow\";\n tooltipView.dom.appendChild(arrow);\n }\n tooltipView.dom.style.position = this.position;\n tooltipView.dom.style.top = Outside;\n tooltipView.dom.style.left = \"0px\";\n this.container.appendChild(tooltipView.dom);\n if (tooltipView.mount)\n tooltipView.mount(this.view);\n return tooltipView;\n }\n destroy() {\n var _a, _b;\n this.view.win.removeEventListener(\"resize\", this.measureSoon);\n for (let tooltipView of this.manager.tooltipViews) {\n tooltipView.dom.remove();\n (_a = tooltipView.destroy) === null || _a === void 0 ? void 0 : _a.call(tooltipView);\n }\n if (this.parent)\n this.container.remove();\n (_b = this.intersectionObserver) === null || _b === void 0 ? void 0 : _b.disconnect();\n clearTimeout(this.measureTimeout);\n }\n readMeasure() {\n let editor = this.view.dom.getBoundingClientRect();\n let scaleX = 1, scaleY = 1, makeAbsolute = false;\n if (this.position == \"fixed\" && this.manager.tooltipViews.length) {\n let { dom } = this.manager.tooltipViews[0];\n if (browser.gecko) {\n // Firefox sets the element's `offsetParent` to the\n // transformed element when a transform interferes with fixed\n // positioning.\n makeAbsolute = dom.offsetParent != this.container.ownerDocument.body;\n }\n else {\n // On other browsers, we have to awkwardly try and use other\n // information to detect a transform.\n if (this.view.scaleX != 1 || this.view.scaleY != 1) {\n makeAbsolute = true;\n }\n else if (dom.style.top == Outside && dom.style.left == \"0px\") {\n let rect = dom.getBoundingClientRect();\n makeAbsolute = Math.abs(rect.top + 10000) > 1 || Math.abs(rect.left) > 1;\n }\n }\n }\n if (makeAbsolute || this.position == \"absolute\") {\n if (this.parent) {\n let rect = this.parent.getBoundingClientRect();\n if (rect.width && rect.height) {\n scaleX = rect.width / this.parent.offsetWidth;\n scaleY = rect.height / this.parent.offsetHeight;\n }\n }\n else {\n ({ scaleX, scaleY } = this.view.viewState);\n }\n }\n return {\n editor,\n parent: this.parent ? this.container.getBoundingClientRect() : editor,\n pos: this.manager.tooltips.map((t, i) => {\n let tv = this.manager.tooltipViews[i];\n return tv.getCoords ? tv.getCoords(t.pos) : this.view.coordsAtPos(t.pos);\n }),\n size: this.manager.tooltipViews.map(({ dom }) => dom.getBoundingClientRect()),\n space: this.view.state.facet(tooltipConfig).tooltipSpace(this.view),\n scaleX, scaleY, makeAbsolute\n };\n }\n writeMeasure(measured) {\n var _a;\n if (measured.makeAbsolute) {\n this.madeAbsolute = true;\n this.position = \"absolute\";\n for (let t of this.manager.tooltipViews)\n t.dom.style.position = \"absolute\";\n }\n let { editor, space, scaleX, scaleY } = measured;\n let others = [];\n for (let i = 0; i < this.manager.tooltips.length; i++) {\n let tooltip = this.manager.tooltips[i], tView = this.manager.tooltipViews[i], { dom } = tView;\n let pos = measured.pos[i], size = measured.size[i];\n // Hide tooltips that are outside of the editor.\n if (!pos || pos.bottom <= Math.max(editor.top, space.top) ||\n pos.top >= Math.min(editor.bottom, space.bottom) ||\n pos.right < Math.max(editor.left, space.left) - .1 ||\n pos.left > Math.min(editor.right, space.right) + .1) {\n dom.style.top = Outside;\n continue;\n }\n let arrow = tooltip.arrow ? tView.dom.querySelector(\".cm-tooltip-arrow\") : null;\n let arrowHeight = arrow ? 7 /* Arrow.Size */ : 0;\n let width = size.right - size.left, height = (_a = knownHeight.get(tView)) !== null && _a !== void 0 ? _a : size.bottom - size.top;\n let offset = tView.offset || noOffset, ltr = this.view.textDirection == Direction.LTR;\n let left = size.width > space.right - space.left ? (ltr ? space.left : space.right - size.width)\n : ltr ? Math.min(pos.left - (arrow ? 14 /* Arrow.Offset */ : 0) + offset.x, space.right - width)\n : Math.max(space.left, pos.left - width + (arrow ? 14 /* Arrow.Offset */ : 0) - offset.x);\n let above = this.above[i];\n if (!tooltip.strictSide && (above\n ? pos.top - (size.bottom - size.top) - offset.y < space.top\n : pos.bottom + (size.bottom - size.top) + offset.y > space.bottom) &&\n above == (space.bottom - pos.bottom > pos.top - space.top))\n above = this.above[i] = !above;\n let spaceVert = (above ? pos.top - space.top : space.bottom - pos.bottom) - arrowHeight;\n if (spaceVert < height && tView.resize !== false) {\n if (spaceVert < this.view.defaultLineHeight) {\n dom.style.top = Outside;\n continue;\n }\n knownHeight.set(tView, height);\n dom.style.height = (height = spaceVert) / scaleY + \"px\";\n }\n else if (dom.style.height) {\n dom.style.height = \"\";\n }\n let top = above ? pos.top - height - arrowHeight - offset.y : pos.bottom + arrowHeight + offset.y;\n let right = left + width;\n if (tView.overlap !== true)\n for (let r of others)\n if (r.left < right && r.right > left && r.top < top + height && r.bottom > top)\n top = above ? r.top - height - 2 - arrowHeight : r.bottom + arrowHeight + 2;\n if (this.position == \"absolute\") {\n dom.style.top = (top - measured.parent.top) / scaleY + \"px\";\n dom.style.left = (left - measured.parent.left) / scaleX + \"px\";\n }\n else {\n dom.style.top = top / scaleY + \"px\";\n dom.style.left = left / scaleX + \"px\";\n }\n if (arrow) {\n let arrowLeft = pos.left + (ltr ? offset.x : -offset.x) - (left + 14 /* Arrow.Offset */ - 7 /* Arrow.Size */);\n arrow.style.left = arrowLeft / scaleX + \"px\";\n }\n if (tView.overlap !== true)\n others.push({ left, top, right, bottom: top + height });\n dom.classList.toggle(\"cm-tooltip-above\", above);\n dom.classList.toggle(\"cm-tooltip-below\", !above);\n if (tView.positioned)\n tView.positioned(measured.space);\n }\n }\n maybeMeasure() {\n if (this.manager.tooltips.length) {\n if (this.view.inView)\n this.view.requestMeasure(this.measureReq);\n if (this.inView != this.view.inView) {\n this.inView = this.view.inView;\n if (!this.inView)\n for (let tv of this.manager.tooltipViews)\n tv.dom.style.top = Outside;\n }\n }\n }\n}, {\n eventObservers: {\n scroll() { this.maybeMeasure(); }\n }\n});\nconst baseTheme = /*@__PURE__*/EditorView.baseTheme({\n \".cm-tooltip\": {\n zIndex: 100,\n boxSizing: \"border-box\"\n },\n \"&light .cm-tooltip\": {\n border: \"1px solid #bbb\",\n backgroundColor: \"#f5f5f5\"\n },\n \"&light .cm-tooltip-section:not(:first-child)\": {\n borderTop: \"1px solid #bbb\",\n },\n \"&dark .cm-tooltip\": {\n backgroundColor: \"#333338\",\n color: \"white\"\n },\n \".cm-tooltip-arrow\": {\n height: `${7 /* Arrow.Size */}px`,\n width: `${7 /* Arrow.Size */ * 2}px`,\n position: \"absolute\",\n zIndex: -1,\n overflow: \"hidden\",\n \"&:before, &:after\": {\n content: \"''\",\n position: \"absolute\",\n width: 0,\n height: 0,\n borderLeft: `${7 /* Arrow.Size */}px solid transparent`,\n borderRight: `${7 /* Arrow.Size */}px solid transparent`,\n },\n \".cm-tooltip-above &\": {\n bottom: `-${7 /* Arrow.Size */}px`,\n \"&:before\": {\n borderTop: `${7 /* Arrow.Size */}px solid #bbb`,\n },\n \"&:after\": {\n borderTop: `${7 /* Arrow.Size */}px solid #f5f5f5`,\n bottom: \"1px\"\n }\n },\n \".cm-tooltip-below &\": {\n top: `-${7 /* Arrow.Size */}px`,\n \"&:before\": {\n borderBottom: `${7 /* Arrow.Size */}px solid #bbb`,\n },\n \"&:after\": {\n borderBottom: `${7 /* Arrow.Size */}px solid #f5f5f5`,\n top: \"1px\"\n }\n },\n },\n \"&dark .cm-tooltip .cm-tooltip-arrow\": {\n \"&:before\": {\n borderTopColor: \"#333338\",\n borderBottomColor: \"#333338\"\n },\n \"&:after\": {\n borderTopColor: \"transparent\",\n borderBottomColor: \"transparent\"\n }\n }\n});\nconst noOffset = { x: 0, y: 0 };\n/**\nFacet to which an extension can add a value to show a tooltip.\n*/\nconst showTooltip = /*@__PURE__*/Facet.define({\n enables: [tooltipPlugin, baseTheme]\n});\nconst showHoverTooltip = /*@__PURE__*/Facet.define();\nclass HoverTooltipHost {\n // Needs to be static so that host tooltip instances always match\n static create(view) {\n return new HoverTooltipHost(view);\n }\n constructor(view) {\n this.view = view;\n this.mounted = false;\n this.dom = document.createElement(\"div\");\n this.dom.classList.add(\"cm-tooltip-hover\");\n this.manager = new TooltipViewManager(view, showHoverTooltip, t => this.createHostedView(t));\n }\n createHostedView(tooltip) {\n let hostedView = tooltip.create(this.view);\n hostedView.dom.classList.add(\"cm-tooltip-section\");\n this.dom.appendChild(hostedView.dom);\n if (this.mounted && hostedView.mount)\n hostedView.mount(this.view);\n return hostedView;\n }\n mount(view) {\n for (let hostedView of this.manager.tooltipViews) {\n if (hostedView.mount)\n hostedView.mount(view);\n }\n this.mounted = true;\n }\n positioned(space) {\n for (let hostedView of this.manager.tooltipViews) {\n if (hostedView.positioned)\n hostedView.positioned(space);\n }\n }\n update(update) {\n this.manager.update(update);\n }\n destroy() {\n var _a;\n for (let t of this.manager.tooltipViews)\n (_a = t.destroy) === null || _a === void 0 ? void 0 : _a.call(t);\n }\n passProp(name) {\n let value = undefined;\n for (let view of this.manager.tooltipViews) {\n let given = view[name];\n if (given !== undefined) {\n if (value === undefined)\n value = given;\n else if (value !== given)\n return undefined;\n }\n }\n return value;\n }\n get offset() { return this.passProp(\"offset\"); }\n get getCoords() { return this.passProp(\"getCoords\"); }\n get overlap() { return this.passProp(\"overlap\"); }\n get resize() { return this.passProp(\"resize\"); }\n}\nconst showHoverTooltipHost = /*@__PURE__*/showTooltip.compute([showHoverTooltip], state => {\n let tooltips = state.facet(showHoverTooltip).filter(t => t);\n if (tooltips.length === 0)\n return null;\n return {\n pos: Math.min(...tooltips.map(t => t.pos)),\n end: Math.max(...tooltips.filter(t => t.end != null).map(t => t.end)),\n create: HoverTooltipHost.create,\n above: tooltips[0].above,\n arrow: tooltips.some(t => t.arrow),\n };\n});\nclass HoverPlugin {\n constructor(view, source, field, setHover, hoverTime) {\n this.view = view;\n this.source = source;\n this.field = field;\n this.setHover = setHover;\n this.hoverTime = hoverTime;\n this.hoverTimeout = -1;\n this.restartTimeout = -1;\n this.pending = null;\n this.lastMove = { x: 0, y: 0, target: view.dom, time: 0 };\n this.checkHover = this.checkHover.bind(this);\n view.dom.addEventListener(\"mouseleave\", this.mouseleave = this.mouseleave.bind(this));\n view.dom.addEventListener(\"mousemove\", this.mousemove = this.mousemove.bind(this));\n }\n update() {\n if (this.pending) {\n this.pending = null;\n clearTimeout(this.restartTimeout);\n this.restartTimeout = setTimeout(() => this.startHover(), 20);\n }\n }\n get active() {\n return this.view.state.field(this.field);\n }\n checkHover() {\n this.hoverTimeout = -1;\n if (this.active)\n return;\n let hovered = Date.now() - this.lastMove.time;\n if (hovered < this.hoverTime)\n this.hoverTimeout = setTimeout(this.checkHover, this.hoverTime - hovered);\n else\n this.startHover();\n }\n startHover() {\n clearTimeout(this.restartTimeout);\n let { view, lastMove } = this;\n let desc = view.docView.nearest(lastMove.target);\n if (!desc)\n return;\n let pos, side = 1;\n if (desc instanceof WidgetView) {\n pos = desc.posAtStart;\n }\n else {\n pos = view.posAtCoords(lastMove);\n if (pos == null)\n return;\n let posCoords = view.coordsAtPos(pos);\n if (!posCoords ||\n lastMove.y < posCoords.top || lastMove.y > posCoords.bottom ||\n lastMove.x < posCoords.left - view.defaultCharacterWidth ||\n lastMove.x > posCoords.right + view.defaultCharacterWidth)\n return;\n let bidi = view.bidiSpans(view.state.doc.lineAt(pos)).find(s => s.from <= pos && s.to >= pos);\n let rtl = bidi && bidi.dir == Direction.RTL ? -1 : 1;\n side = (lastMove.x < posCoords.left ? -rtl : rtl);\n }\n let open = this.source(view, pos, side);\n if (open === null || open === void 0 ? void 0 : open.then) {\n let pending = this.pending = { pos };\n open.then(result => {\n if (this.pending == pending) {\n this.pending = null;\n if (result)\n view.dispatch({ effects: this.setHover.of(result) });\n }\n }, e => logException(view.state, e, \"hover tooltip\"));\n }\n else if (open) {\n view.dispatch({ effects: this.setHover.of(open) });\n }\n }\n mousemove(event) {\n var _a;\n this.lastMove = { x: event.clientX, y: event.clientY, target: event.target, time: Date.now() };\n if (this.hoverTimeout < 0)\n this.hoverTimeout = setTimeout(this.checkHover, this.hoverTime);\n let tooltip = this.active;\n if (tooltip && !isInTooltip(this.lastMove.target) || this.pending) {\n let { pos } = tooltip || this.pending, end = (_a = tooltip === null || tooltip === void 0 ? void 0 : tooltip.end) !== null && _a !== void 0 ? _a : pos;\n if ((pos == end ? this.view.posAtCoords(this.lastMove) != pos\n : !isOverRange(this.view, pos, end, event.clientX, event.clientY))) {\n this.view.dispatch({ effects: this.setHover.of(null) });\n this.pending = null;\n }\n }\n }\n mouseleave(e) {\n clearTimeout(this.hoverTimeout);\n this.hoverTimeout = -1;\n if (this.active && !isInTooltip(e.relatedTarget))\n this.view.dispatch({ effects: this.setHover.of(null) });\n }\n destroy() {\n clearTimeout(this.hoverTimeout);\n this.view.dom.removeEventListener(\"mouseleave\", this.mouseleave);\n this.view.dom.removeEventListener(\"mousemove\", this.mousemove);\n }\n}\nfunction isInTooltip(elt) {\n for (let cur = elt; cur; cur = cur.parentNode)\n if (cur.nodeType == 1 && cur.classList.contains(\"cm-tooltip\"))\n return true;\n return false;\n}\nfunction isOverRange(view, from, to, x, y, margin) {\n let rect = view.scrollDOM.getBoundingClientRect();\n let docBottom = view.documentTop + view.documentPadding.top + view.contentHeight;\n if (rect.left > x || rect.right < x || rect.top > y || Math.min(rect.bottom, docBottom) < y)\n return false;\n let pos = view.posAtCoords({ x, y }, false);\n return pos >= from && pos <= to;\n}\n/**\nSet up a hover tooltip, which shows up when the pointer hovers\nover ranges of text. The callback is called when the mouse hovers\nover the document text. It should, if there is a tooltip\nassociated with position `pos`, return the tooltip description\n(either directly or in a promise). The `side` argument indicates\non which side of the position the pointer is—it will be -1 if the\npointer is before the position, 1 if after the position.\n\nNote that all hover tooltips are hosted within a single tooltip\ncontainer element. This allows multiple tooltips over the same\nrange to be \"merged\" together without overlapping.\n*/\nfunction hoverTooltip(source, options = {}) {\n let setHover = StateEffect.define();\n let hoverState = StateField.define({\n create() { return null; },\n update(value, tr) {\n if (value && (options.hideOnChange && (tr.docChanged || tr.selection) ||\n options.hideOn && options.hideOn(tr, value)))\n return null;\n if (value && tr.docChanged) {\n let newPos = tr.changes.mapPos(value.pos, -1, MapMode.TrackDel);\n if (newPos == null)\n return null;\n let copy = Object.assign(Object.create(null), value);\n copy.pos = newPos;\n if (value.end != null)\n copy.end = tr.changes.mapPos(value.end);\n value = copy;\n }\n for (let effect of tr.effects) {\n if (effect.is(setHover))\n value = effect.value;\n if (effect.is(closeHoverTooltipEffect))\n value = null;\n }\n return value;\n },\n provide: f => showHoverTooltip.from(f)\n });\n return [\n hoverState,\n ViewPlugin.define(view => new HoverPlugin(view, source, hoverState, setHover, options.hoverTime || 300 /* Hover.Time */)),\n showHoverTooltipHost\n ];\n}\n/**\nGet the active tooltip view for a given tooltip, if available.\n*/\nfunction getTooltip(view, tooltip) {\n let plugin = view.plugin(tooltipPlugin);\n if (!plugin)\n return null;\n let found = plugin.manager.tooltips.indexOf(tooltip);\n return found < 0 ? null : plugin.manager.tooltipViews[found];\n}\n/**\nReturns true if any hover tooltips are currently active.\n*/\nfunction hasHoverTooltips(state) {\n return state.facet(showHoverTooltip).some(x => x);\n}\nconst closeHoverTooltipEffect = /*@__PURE__*/StateEffect.define();\n/**\nTransaction effect that closes all hover tooltips.\n*/\nconst closeHoverTooltips = /*@__PURE__*/closeHoverTooltipEffect.of(null);\n/**\nTell the tooltip extension to recompute the position of the active\ntooltips. This can be useful when something happens (such as a\nre-positioning or CSS change affecting the editor) that could\ninvalidate the existing tooltip positions.\n*/\nfunction repositionTooltips(view) {\n let plugin = view.plugin(tooltipPlugin);\n if (plugin)\n plugin.maybeMeasure();\n}\n\nconst panelConfig = /*@__PURE__*/Facet.define({\n combine(configs) {\n let topContainer, bottomContainer;\n for (let c of configs) {\n topContainer = topContainer || c.topContainer;\n bottomContainer = bottomContainer || c.bottomContainer;\n }\n return { topContainer, bottomContainer };\n }\n});\n/**\nConfigures the panel-managing extension.\n*/\nfunction panels(config) {\n return config ? [panelConfig.of(config)] : [];\n}\n/**\nGet the active panel created by the given constructor, if any.\nThis can be useful when you need access to your panels' DOM\nstructure.\n*/\nfunction getPanel(view, panel) {\n let plugin = view.plugin(panelPlugin);\n let index = plugin ? plugin.specs.indexOf(panel) : -1;\n return index > -1 ? plugin.panels[index] : null;\n}\nconst panelPlugin = /*@__PURE__*/ViewPlugin.fromClass(class {\n constructor(view) {\n this.input = view.state.facet(showPanel);\n this.specs = this.input.filter(s => s);\n this.panels = this.specs.map(spec => spec(view));\n let conf = view.state.facet(panelConfig);\n this.top = new PanelGroup(view, true, conf.topContainer);\n this.bottom = new PanelGroup(view, false, conf.bottomContainer);\n this.top.sync(this.panels.filter(p => p.top));\n this.bottom.sync(this.panels.filter(p => !p.top));\n for (let p of this.panels) {\n p.dom.classList.add(\"cm-panel\");\n if (p.mount)\n p.mount();\n }\n }\n update(update) {\n let conf = update.state.facet(panelConfig);\n if (this.top.container != conf.topContainer) {\n this.top.sync([]);\n this.top = new PanelGroup(update.view, true, conf.topContainer);\n }\n if (this.bottom.container != conf.bottomContainer) {\n this.bottom.sync([]);\n this.bottom = new PanelGroup(update.view, false, conf.bottomContainer);\n }\n this.top.syncClasses();\n this.bottom.syncClasses();\n let input = update.state.facet(showPanel);\n if (input != this.input) {\n let specs = input.filter(x => x);\n let panels = [], top = [], bottom = [], mount = [];\n for (let spec of specs) {\n let known = this.specs.indexOf(spec), panel;\n if (known < 0) {\n panel = spec(update.view);\n mount.push(panel);\n }\n else {\n panel = this.panels[known];\n if (panel.update)\n panel.update(update);\n }\n panels.push(panel);\n (panel.top ? top : bottom).push(panel);\n }\n this.specs = specs;\n this.panels = panels;\n this.top.sync(top);\n this.bottom.sync(bottom);\n for (let p of mount) {\n p.dom.classList.add(\"cm-panel\");\n if (p.mount)\n p.mount();\n }\n }\n else {\n for (let p of this.panels)\n if (p.update)\n p.update(update);\n }\n }\n destroy() {\n this.top.sync([]);\n this.bottom.sync([]);\n }\n}, {\n provide: plugin => EditorView.scrollMargins.of(view => {\n let value = view.plugin(plugin);\n return value && { top: value.top.scrollMargin(), bottom: value.bottom.scrollMargin() };\n })\n});\nclass PanelGroup {\n constructor(view, top, container) {\n this.view = view;\n this.top = top;\n this.container = container;\n this.dom = undefined;\n this.classes = \"\";\n this.panels = [];\n this.syncClasses();\n }\n sync(panels) {\n for (let p of this.panels)\n if (p.destroy && panels.indexOf(p) < 0)\n p.destroy();\n this.panels = panels;\n this.syncDOM();\n }\n syncDOM() {\n if (this.panels.length == 0) {\n if (this.dom) {\n this.dom.remove();\n this.dom = undefined;\n }\n return;\n }\n if (!this.dom) {\n this.dom = document.createElement(\"div\");\n this.dom.className = this.top ? \"cm-panels cm-panels-top\" : \"cm-panels cm-panels-bottom\";\n this.dom.style[this.top ? \"top\" : \"bottom\"] = \"0\";\n let parent = this.container || this.view.dom;\n parent.insertBefore(this.dom, this.top ? parent.firstChild : null);\n }\n let curDOM = this.dom.firstChild;\n for (let panel of this.panels) {\n if (panel.dom.parentNode == this.dom) {\n while (curDOM != panel.dom)\n curDOM = rm(curDOM);\n curDOM = curDOM.nextSibling;\n }\n else {\n this.dom.insertBefore(panel.dom, curDOM);\n }\n }\n while (curDOM)\n curDOM = rm(curDOM);\n }\n scrollMargin() {\n return !this.dom || this.container ? 0\n : Math.max(0, this.top ?\n this.dom.getBoundingClientRect().bottom - Math.max(0, this.view.scrollDOM.getBoundingClientRect().top) :\n Math.min(innerHeight, this.view.scrollDOM.getBoundingClientRect().bottom) - this.dom.getBoundingClientRect().top);\n }\n syncClasses() {\n if (!this.container || this.classes == this.view.themeClasses)\n return;\n for (let cls of this.classes.split(\" \"))\n if (cls)\n this.container.classList.remove(cls);\n for (let cls of (this.classes = this.view.themeClasses).split(\" \"))\n if (cls)\n this.container.classList.add(cls);\n }\n}\nfunction rm(node) {\n let next = node.nextSibling;\n node.remove();\n return next;\n}\n/**\nOpening a panel is done by providing a constructor function for\nthe panel through this facet. (The panel is closed again when its\nconstructor is no longer provided.) Values of `null` are ignored.\n*/\nconst showPanel = /*@__PURE__*/Facet.define({\n enables: panelPlugin\n});\n\n/**\nA gutter marker represents a bit of information attached to a line\nin a specific gutter. Your own custom markers have to extend this\nclass.\n*/\nclass GutterMarker extends RangeValue {\n /**\n @internal\n */\n compare(other) {\n return this == other || this.constructor == other.constructor && this.eq(other);\n }\n /**\n Compare this marker to another marker of the same type.\n */\n eq(other) { return false; }\n /**\n Called if the marker has a `toDOM` method and its representation\n was removed from a gutter.\n */\n destroy(dom) { }\n}\nGutterMarker.prototype.elementClass = \"\";\nGutterMarker.prototype.toDOM = undefined;\nGutterMarker.prototype.mapMode = MapMode.TrackBefore;\nGutterMarker.prototype.startSide = GutterMarker.prototype.endSide = -1;\nGutterMarker.prototype.point = true;\n/**\nFacet used to add a class to all gutter elements for a given line.\nMarkers given to this facet should _only_ define an\n[`elementclass`](https://codemirror.net/6/docs/ref/#view.GutterMarker.elementClass), not a\n[`toDOM`](https://codemirror.net/6/docs/ref/#view.GutterMarker.toDOM) (or the marker will appear\nin all gutters for the line).\n*/\nconst gutterLineClass = /*@__PURE__*/Facet.define();\nconst defaults = {\n class: \"\",\n renderEmptyElements: false,\n elementStyle: \"\",\n markers: () => RangeSet.empty,\n lineMarker: () => null,\n widgetMarker: () => null,\n lineMarkerChange: null,\n initialSpacer: null,\n updateSpacer: null,\n domEventHandlers: {}\n};\nconst activeGutters = /*@__PURE__*/Facet.define();\n/**\nDefine an editor gutter. The order in which the gutters appear is\ndetermined by their extension priority.\n*/\nfunction gutter(config) {\n return [gutters(), activeGutters.of(Object.assign(Object.assign({}, defaults), config))];\n}\nconst unfixGutters = /*@__PURE__*/Facet.define({\n combine: values => values.some(x => x)\n});\n/**\nThe gutter-drawing plugin is automatically enabled when you add a\ngutter, but you can use this function to explicitly configure it.\n\nUnless `fixed` is explicitly set to `false`, the gutters are\nfixed, meaning they don't scroll along with the content\nhorizontally (except on Internet Explorer, which doesn't support\nCSS [`position:\nsticky`](https://developer.mozilla.org/en-US/docs/Web/CSS/position#sticky)).\n*/\nfunction gutters(config) {\n let result = [\n gutterView,\n ];\n if (config && config.fixed === false)\n result.push(unfixGutters.of(true));\n return result;\n}\nconst gutterView = /*@__PURE__*/ViewPlugin.fromClass(class {\n constructor(view) {\n this.view = view;\n this.prevViewport = view.viewport;\n this.dom = document.createElement(\"div\");\n this.dom.className = \"cm-gutters\";\n this.dom.setAttribute(\"aria-hidden\", \"true\");\n this.dom.style.minHeight = (this.view.contentHeight / this.view.scaleY) + \"px\";\n this.gutters = view.state.facet(activeGutters).map(conf => new SingleGutterView(view, conf));\n for (let gutter of this.gutters)\n this.dom.appendChild(gutter.dom);\n this.fixed = !view.state.facet(unfixGutters);\n if (this.fixed) {\n // FIXME IE11 fallback, which doesn't support position: sticky,\n // by using position: relative + event handlers that realign the\n // gutter (or just force fixed=false on IE11?)\n this.dom.style.position = \"sticky\";\n }\n this.syncGutters(false);\n view.scrollDOM.insertBefore(this.dom, view.contentDOM);\n }\n update(update) {\n if (this.updateGutters(update)) {\n // Detach during sync when the viewport changed significantly\n // (such as during scrolling), since for large updates that is\n // faster.\n let vpA = this.prevViewport, vpB = update.view.viewport;\n let vpOverlap = Math.min(vpA.to, vpB.to) - Math.max(vpA.from, vpB.from);\n this.syncGutters(vpOverlap < (vpB.to - vpB.from) * 0.8);\n }\n if (update.geometryChanged)\n this.dom.style.minHeight = this.view.contentHeight + \"px\";\n if (this.view.state.facet(unfixGutters) != !this.fixed) {\n this.fixed = !this.fixed;\n this.dom.style.position = this.fixed ? \"sticky\" : \"\";\n }\n this.prevViewport = update.view.viewport;\n }\n syncGutters(detach) {\n let after = this.dom.nextSibling;\n if (detach)\n this.dom.remove();\n let lineClasses = RangeSet.iter(this.view.state.facet(gutterLineClass), this.view.viewport.from);\n let classSet = [];\n let contexts = this.gutters.map(gutter => new UpdateContext(gutter, this.view.viewport, -this.view.documentPadding.top));\n for (let line of this.view.viewportLineBlocks) {\n if (classSet.length)\n classSet = [];\n if (Array.isArray(line.type)) {\n let first = true;\n for (let b of line.type) {\n if (b.type == BlockType.Text && first) {\n advanceCursor(lineClasses, classSet, b.from);\n for (let cx of contexts)\n cx.line(this.view, b, classSet);\n first = false;\n }\n else if (b.widget) {\n for (let cx of contexts)\n cx.widget(this.view, b);\n }\n }\n }\n else if (line.type == BlockType.Text) {\n advanceCursor(lineClasses, classSet, line.from);\n for (let cx of contexts)\n cx.line(this.view, line, classSet);\n }\n else if (line.widget) {\n for (let cx of contexts)\n cx.widget(this.view, line);\n }\n }\n for (let cx of contexts)\n cx.finish();\n if (detach)\n this.view.scrollDOM.insertBefore(this.dom, after);\n }\n updateGutters(update) {\n let prev = update.startState.facet(activeGutters), cur = update.state.facet(activeGutters);\n let change = update.docChanged || update.heightChanged || update.viewportChanged ||\n !RangeSet.eq(update.startState.facet(gutterLineClass), update.state.facet(gutterLineClass), update.view.viewport.from, update.view.viewport.to);\n if (prev == cur) {\n for (let gutter of this.gutters)\n if (gutter.update(update))\n change = true;\n }\n else {\n change = true;\n let gutters = [];\n for (let conf of cur) {\n let known = prev.indexOf(conf);\n if (known < 0) {\n gutters.push(new SingleGutterView(this.view, conf));\n }\n else {\n this.gutters[known].update(update);\n gutters.push(this.gutters[known]);\n }\n }\n for (let g of this.gutters) {\n g.dom.remove();\n if (gutters.indexOf(g) < 0)\n g.destroy();\n }\n for (let g of gutters)\n this.dom.appendChild(g.dom);\n this.gutters = gutters;\n }\n return change;\n }\n destroy() {\n for (let view of this.gutters)\n view.destroy();\n this.dom.remove();\n }\n}, {\n provide: plugin => EditorView.scrollMargins.of(view => {\n let value = view.plugin(plugin);\n if (!value || value.gutters.length == 0 || !value.fixed)\n return null;\n return view.textDirection == Direction.LTR\n ? { left: value.dom.offsetWidth * view.scaleX }\n : { right: value.dom.offsetWidth * view.scaleX };\n })\n});\nfunction asArray(val) { return (Array.isArray(val) ? val : [val]); }\nfunction advanceCursor(cursor, collect, pos) {\n while (cursor.value && cursor.from <= pos) {\n if (cursor.from == pos)\n collect.push(cursor.value);\n cursor.next();\n }\n}\nclass UpdateContext {\n constructor(gutter, viewport, height) {\n this.gutter = gutter;\n this.height = height;\n this.i = 0;\n this.cursor = RangeSet.iter(gutter.markers, viewport.from);\n }\n addElement(view, block, markers) {\n let { gutter } = this, above = (block.top - this.height) / view.scaleY, height = block.height / view.scaleY;\n if (this.i == gutter.elements.length) {\n let newElt = new GutterElement(view, height, above, markers);\n gutter.elements.push(newElt);\n gutter.dom.appendChild(newElt.dom);\n }\n else {\n gutter.elements[this.i].update(view, height, above, markers);\n }\n this.height = block.bottom;\n this.i++;\n }\n line(view, line, extraMarkers) {\n let localMarkers = [];\n advanceCursor(this.cursor, localMarkers, line.from);\n if (extraMarkers.length)\n localMarkers = localMarkers.concat(extraMarkers);\n let forLine = this.gutter.config.lineMarker(view, line, localMarkers);\n if (forLine)\n localMarkers.unshift(forLine);\n let gutter = this.gutter;\n if (localMarkers.length == 0 && !gutter.config.renderEmptyElements)\n return;\n this.addElement(view, line, localMarkers);\n }\n widget(view, block) {\n let marker = this.gutter.config.widgetMarker(view, block.widget, block);\n if (marker)\n this.addElement(view, block, [marker]);\n }\n finish() {\n let gutter = this.gutter;\n while (gutter.elements.length > this.i) {\n let last = gutter.elements.pop();\n gutter.dom.removeChild(last.dom);\n last.destroy();\n }\n }\n}\nclass SingleGutterView {\n constructor(view, config) {\n this.view = view;\n this.config = config;\n this.elements = [];\n this.spacer = null;\n this.dom = document.createElement(\"div\");\n this.dom.className = \"cm-gutter\" + (this.config.class ? \" \" + this.config.class : \"\");\n for (let prop in config.domEventHandlers) {\n this.dom.addEventListener(prop, (event) => {\n let target = event.target, y;\n if (target != this.dom && this.dom.contains(target)) {\n while (target.parentNode != this.dom)\n target = target.parentNode;\n let rect = target.getBoundingClientRect();\n y = (rect.top + rect.bottom) / 2;\n }\n else {\n y = event.clientY;\n }\n let line = view.lineBlockAtHeight(y - view.documentTop);\n if (config.domEventHandlers[prop](view, line, event))\n event.preventDefault();\n });\n }\n this.markers = asArray(config.markers(view));\n if (config.initialSpacer) {\n this.spacer = new GutterElement(view, 0, 0, [config.initialSpacer(view)]);\n this.dom.appendChild(this.spacer.dom);\n this.spacer.dom.style.cssText += \"visibility: hidden; pointer-events: none\";\n }\n }\n update(update) {\n let prevMarkers = this.markers;\n this.markers = asArray(this.config.markers(update.view));\n if (this.spacer && this.config.updateSpacer) {\n let updated = this.config.updateSpacer(this.spacer.markers[0], update);\n if (updated != this.spacer.markers[0])\n this.spacer.update(update.view, 0, 0, [updated]);\n }\n let vp = update.view.viewport;\n return !RangeSet.eq(this.markers, prevMarkers, vp.from, vp.to) ||\n (this.config.lineMarkerChange ? this.config.lineMarkerChange(update) : false);\n }\n destroy() {\n for (let elt of this.elements)\n elt.destroy();\n }\n}\nclass GutterElement {\n constructor(view, height, above, markers) {\n this.height = -1;\n this.above = 0;\n this.markers = [];\n this.dom = document.createElement(\"div\");\n this.dom.className = \"cm-gutterElement\";\n this.update(view, height, above, markers);\n }\n update(view, height, above, markers) {\n if (this.height != height) {\n this.height = height;\n this.dom.style.height = height + \"px\";\n }\n if (this.above != above)\n this.dom.style.marginTop = (this.above = above) ? above + \"px\" : \"\";\n if (!sameMarkers(this.markers, markers))\n this.setMarkers(view, markers);\n }\n setMarkers(view, markers) {\n let cls = \"cm-gutterElement\", domPos = this.dom.firstChild;\n for (let iNew = 0, iOld = 0;;) {\n let skipTo = iOld, marker = iNew < markers.length ? markers[iNew++] : null, matched = false;\n if (marker) {\n let c = marker.elementClass;\n if (c)\n cls += \" \" + c;\n for (let i = iOld; i < this.markers.length; i++)\n if (this.markers[i].compare(marker)) {\n skipTo = i;\n matched = true;\n break;\n }\n }\n else {\n skipTo = this.markers.length;\n }\n while (iOld < skipTo) {\n let next = this.markers[iOld++];\n if (next.toDOM) {\n next.destroy(domPos);\n let after = domPos.nextSibling;\n domPos.remove();\n domPos = after;\n }\n }\n if (!marker)\n break;\n if (marker.toDOM) {\n if (matched)\n domPos = domPos.nextSibling;\n else\n this.dom.insertBefore(marker.toDOM(view), domPos);\n }\n if (matched)\n iOld++;\n }\n this.dom.className = cls;\n this.markers = markers;\n }\n destroy() {\n this.setMarkers(null, []); // First argument not used unless creating markers\n }\n}\nfunction sameMarkers(a, b) {\n if (a.length != b.length)\n return false;\n for (let i = 0; i < a.length; i++)\n if (!a[i].compare(b[i]))\n return false;\n return true;\n}\n/**\nFacet used to provide markers to the line number gutter.\n*/\nconst lineNumberMarkers = /*@__PURE__*/Facet.define();\nconst lineNumberConfig = /*@__PURE__*/Facet.define({\n combine(values) {\n return combineConfig(values, { formatNumber: String, domEventHandlers: {} }, {\n domEventHandlers(a, b) {\n let result = Object.assign({}, a);\n for (let event in b) {\n let exists = result[event], add = b[event];\n result[event] = exists ? (view, line, event) => exists(view, line, event) || add(view, line, event) : add;\n }\n return result;\n }\n });\n }\n});\nclass NumberMarker extends GutterMarker {\n constructor(number) {\n super();\n this.number = number;\n }\n eq(other) { return this.number == other.number; }\n toDOM() { return document.createTextNode(this.number); }\n}\nfunction formatNumber(view, number) {\n return view.state.facet(lineNumberConfig).formatNumber(number, view.state);\n}\nconst lineNumberGutter = /*@__PURE__*/activeGutters.compute([lineNumberConfig], state => ({\n class: \"cm-lineNumbers\",\n renderEmptyElements: false,\n markers(view) { return view.state.facet(lineNumberMarkers); },\n lineMarker(view, line, others) {\n if (others.some(m => m.toDOM))\n return null;\n return new NumberMarker(formatNumber(view, view.state.doc.lineAt(line.from).number));\n },\n widgetMarker: () => null,\n lineMarkerChange: update => update.startState.facet(lineNumberConfig) != update.state.facet(lineNumberConfig),\n initialSpacer(view) {\n return new NumberMarker(formatNumber(view, maxLineNumber(view.state.doc.lines)));\n },\n updateSpacer(spacer, update) {\n let max = formatNumber(update.view, maxLineNumber(update.view.state.doc.lines));\n return max == spacer.number ? spacer : new NumberMarker(max);\n },\n domEventHandlers: state.facet(lineNumberConfig).domEventHandlers\n}));\n/**\nCreate a line number gutter extension.\n*/\nfunction lineNumbers(config = {}) {\n return [\n lineNumberConfig.of(config),\n gutters(),\n lineNumberGutter\n ];\n}\nfunction maxLineNumber(lines) {\n let last = 9;\n while (last < lines)\n last = last * 10 + 9;\n return last;\n}\nconst activeLineGutterMarker = /*@__PURE__*/new class extends GutterMarker {\n constructor() {\n super(...arguments);\n this.elementClass = \"cm-activeLineGutter\";\n }\n};\nconst activeLineGutterHighlighter = /*@__PURE__*/gutterLineClass.compute([\"selection\"], state => {\n let marks = [], last = -1;\n for (let range of state.selection.ranges) {\n let linePos = state.doc.lineAt(range.head).from;\n if (linePos > last) {\n last = linePos;\n marks.push(activeLineGutterMarker.range(linePos));\n }\n }\n return RangeSet.of(marks);\n});\n/**\nReturns an extension that adds a `cm-activeLineGutter` class to\nall gutter elements on the [active\nline](https://codemirror.net/6/docs/ref/#view.highlightActiveLine).\n*/\nfunction highlightActiveLineGutter() {\n return activeLineGutterHighlighter;\n}\n\nconst WhitespaceDeco = /*@__PURE__*/new Map();\nfunction getWhitespaceDeco(space) {\n let deco = WhitespaceDeco.get(space);\n if (!deco)\n WhitespaceDeco.set(space, deco = Decoration.mark({\n attributes: space === \"\\t\" ? {\n class: \"cm-highlightTab\",\n } : {\n class: \"cm-highlightSpace\",\n \"data-display\": space.replace(/ /g, \"·\")\n }\n }));\n return deco;\n}\nfunction matcher(decorator) {\n return ViewPlugin.define(view => ({\n decorations: decorator.createDeco(view),\n update(u) {\n this.decorations = decorator.updateDeco(u, this.decorations);\n },\n }), {\n decorations: v => v.decorations\n });\n}\nconst whitespaceHighlighter = /*@__PURE__*/matcher(/*@__PURE__*/new MatchDecorator({\n regexp: /\\t| +/g,\n decoration: match => getWhitespaceDeco(match[0]),\n boundary: /\\S/,\n}));\n/**\nReturns an extension that highlights whitespace, adding a\n`cm-highlightSpace` class to stretches of spaces, and a\n`cm-highlightTab` class to individual tab characters. By default,\nthe former are shown as faint dots, and the latter as arrows.\n*/\nfunction highlightWhitespace() {\n return whitespaceHighlighter;\n}\nconst trailingHighlighter = /*@__PURE__*/matcher(/*@__PURE__*/new MatchDecorator({\n regexp: /\\s+$/g,\n decoration: /*@__PURE__*/Decoration.mark({ class: \"cm-trailingSpace\" }),\n boundary: /\\S/,\n}));\n/**\nReturns an extension that adds a `cm-trailingSpace` class to all\ntrailing whitespace.\n*/\nfunction highlightTrailingWhitespace() {\n return trailingHighlighter;\n}\n\n/**\n@internal\n*/\nconst __test = { HeightMap, HeightOracle, MeasuredHeights, QueryType, ChangedRange, computeOrder, moveVisually };\n\nexport { BidiSpan, BlockInfo, BlockType, Decoration, Direction, EditorView, GutterMarker, MatchDecorator, RectangleMarker, ViewPlugin, ViewUpdate, WidgetType, __test, closeHoverTooltips, crosshairCursor, drawSelection, dropCursor, getDrawSelectionConfig, getPanel, getTooltip, gutter, gutterLineClass, gutters, hasHoverTooltips, highlightActiveLine, highlightActiveLineGutter, highlightSpecialChars, highlightTrailingWhitespace, highlightWhitespace, hoverTooltip, keymap, layer, lineNumberMarkers, lineNumbers, logException, panels, placeholder, rectangularSelection, repositionTooltips, runScopeHandlers, scrollPastEnd, showPanel, showTooltip, tooltips };\n","/**\nThe default maximum length of a `TreeBuffer` node.\n*/\nconst DefaultBufferLength = 1024;\nlet nextPropID = 0;\nclass Range {\n constructor(from, to) {\n this.from = from;\n this.to = to;\n }\n}\n/**\nEach [node type](#common.NodeType) or [individual tree](#common.Tree)\ncan have metadata associated with it in props. Instances of this\nclass represent prop names.\n*/\nclass NodeProp {\n /**\n Create a new node prop type.\n */\n constructor(config = {}) {\n this.id = nextPropID++;\n this.perNode = !!config.perNode;\n this.deserialize = config.deserialize || (() => {\n throw new Error(\"This node type doesn't define a deserialize function\");\n });\n }\n /**\n This is meant to be used with\n [`NodeSet.extend`](#common.NodeSet.extend) or\n [`LRParser.configure`](#lr.ParserConfig.props) to compute\n prop values for each node type in the set. Takes a [match\n object](#common.NodeType^match) or function that returns undefined\n if the node type doesn't get this prop, and the prop's value if\n it does.\n */\n add(match) {\n if (this.perNode)\n throw new RangeError(\"Can't add per-node props to node types\");\n if (typeof match != \"function\")\n match = NodeType.match(match);\n return (type) => {\n let result = match(type);\n return result === undefined ? null : [this, result];\n };\n }\n}\n/**\nProp that is used to describe matching delimiters. For opening\ndelimiters, this holds an array of node names (written as a\nspace-separated string when declaring this prop in a grammar)\nfor the node types of closing delimiters that match it.\n*/\nNodeProp.closedBy = new NodeProp({ deserialize: str => str.split(\" \") });\n/**\nThe inverse of [`closedBy`](#common.NodeProp^closedBy). This is\nattached to closing delimiters, holding an array of node names\nof types of matching opening delimiters.\n*/\nNodeProp.openedBy = new NodeProp({ deserialize: str => str.split(\" \") });\n/**\nUsed to assign node types to groups (for example, all node\ntypes that represent an expression could be tagged with an\n`\"Expression\"` group).\n*/\nNodeProp.group = new NodeProp({ deserialize: str => str.split(\" \") });\n/**\nThe hash of the [context](#lr.ContextTracker.constructor)\nthat the node was parsed in, if any. Used to limit reuse of\ncontextual nodes.\n*/\nNodeProp.contextHash = new NodeProp({ perNode: true });\n/**\nThe distance beyond the end of the node that the tokenizer\nlooked ahead for any of the tokens inside the node. (The LR\nparser only stores this when it is larger than 25, for\nefficiency reasons.)\n*/\nNodeProp.lookAhead = new NodeProp({ perNode: true });\n/**\nThis per-node prop is used to replace a given node, or part of a\nnode, with another tree. This is useful to include trees from\ndifferent languages in mixed-language parsers.\n*/\nNodeProp.mounted = new NodeProp({ perNode: true });\n/**\nA mounted tree, which can be [stored](#common.NodeProp^mounted) on\na tree node to indicate that parts of its content are\nrepresented by another tree.\n*/\nclass MountedTree {\n constructor(\n /**\n The inner tree.\n */\n tree, \n /**\n If this is null, this tree replaces the entire node (it will\n be included in the regular iteration instead of its host\n node). If not, only the given ranges are considered to be\n covered by this tree. This is used for trees that are mixed in\n a way that isn't strictly hierarchical. Such mounted trees are\n only entered by [`resolveInner`](#common.Tree.resolveInner)\n and [`enter`](#common.SyntaxNode.enter).\n */\n overlay, \n /**\n The parser used to create this subtree.\n */\n parser) {\n this.tree = tree;\n this.overlay = overlay;\n this.parser = parser;\n }\n /**\n @internal\n */\n static get(tree) {\n return tree && tree.props && tree.props[NodeProp.mounted.id];\n }\n}\nconst noProps = Object.create(null);\n/**\nEach node in a syntax tree has a node type associated with it.\n*/\nclass NodeType {\n /**\n @internal\n */\n constructor(\n /**\n The name of the node type. Not necessarily unique, but if the\n grammar was written properly, different node types with the\n same name within a node set should play the same semantic\n role.\n */\n name, \n /**\n @internal\n */\n props, \n /**\n The id of this node in its set. Corresponds to the term ids\n used in the parser.\n */\n id, \n /**\n @internal\n */\n flags = 0) {\n this.name = name;\n this.props = props;\n this.id = id;\n this.flags = flags;\n }\n /**\n Define a node type.\n */\n static define(spec) {\n let props = spec.props && spec.props.length ? Object.create(null) : noProps;\n let flags = (spec.top ? 1 /* NodeFlag.Top */ : 0) | (spec.skipped ? 2 /* NodeFlag.Skipped */ : 0) |\n (spec.error ? 4 /* NodeFlag.Error */ : 0) | (spec.name == null ? 8 /* NodeFlag.Anonymous */ : 0);\n let type = new NodeType(spec.name || \"\", props, spec.id, flags);\n if (spec.props)\n for (let src of spec.props) {\n if (!Array.isArray(src))\n src = src(type);\n if (src) {\n if (src[0].perNode)\n throw new RangeError(\"Can't store a per-node prop on a node type\");\n props[src[0].id] = src[1];\n }\n }\n return type;\n }\n /**\n Retrieves a node prop for this type. Will return `undefined` if\n the prop isn't present on this node.\n */\n prop(prop) { return this.props[prop.id]; }\n /**\n True when this is the top node of a grammar.\n */\n get isTop() { return (this.flags & 1 /* NodeFlag.Top */) > 0; }\n /**\n True when this node is produced by a skip rule.\n */\n get isSkipped() { return (this.flags & 2 /* NodeFlag.Skipped */) > 0; }\n /**\n Indicates whether this is an error node.\n */\n get isError() { return (this.flags & 4 /* NodeFlag.Error */) > 0; }\n /**\n When true, this node type doesn't correspond to a user-declared\n named node, for example because it is used to cache repetition.\n */\n get isAnonymous() { return (this.flags & 8 /* NodeFlag.Anonymous */) > 0; }\n /**\n Returns true when this node's name or one of its\n [groups](#common.NodeProp^group) matches the given string.\n */\n is(name) {\n if (typeof name == 'string') {\n if (this.name == name)\n return true;\n let group = this.prop(NodeProp.group);\n return group ? group.indexOf(name) > -1 : false;\n }\n return this.id == name;\n }\n /**\n Create a function from node types to arbitrary values by\n specifying an object whose property names are node or\n [group](#common.NodeProp^group) names. Often useful with\n [`NodeProp.add`](#common.NodeProp.add). You can put multiple\n names, separated by spaces, in a single property name to map\n multiple node names to a single value.\n */\n static match(map) {\n let direct = Object.create(null);\n for (let prop in map)\n for (let name of prop.split(\" \"))\n direct[name] = map[prop];\n return (node) => {\n for (let groups = node.prop(NodeProp.group), i = -1; i < (groups ? groups.length : 0); i++) {\n let found = direct[i < 0 ? node.name : groups[i]];\n if (found)\n return found;\n }\n };\n }\n}\n/**\nAn empty dummy node type to use when no actual type is available.\n*/\nNodeType.none = new NodeType(\"\", Object.create(null), 0, 8 /* NodeFlag.Anonymous */);\n/**\nA node set holds a collection of node types. It is used to\ncompactly represent trees by storing their type ids, rather than a\nfull pointer to the type object, in a numeric array. Each parser\n[has](#lr.LRParser.nodeSet) a node set, and [tree\nbuffers](#common.TreeBuffer) can only store collections of nodes\nfrom the same set. A set can have a maximum of 2**16 (65536) node\ntypes in it, so that the ids fit into 16-bit typed array slots.\n*/\nclass NodeSet {\n /**\n Create a set with the given types. The `id` property of each\n type should correspond to its position within the array.\n */\n constructor(\n /**\n The node types in this set, by id.\n */\n types) {\n this.types = types;\n for (let i = 0; i < types.length; i++)\n if (types[i].id != i)\n throw new RangeError(\"Node type ids should correspond to array positions when creating a node set\");\n }\n /**\n Create a copy of this set with some node properties added. The\n arguments to this method can be created with\n [`NodeProp.add`](#common.NodeProp.add).\n */\n extend(...props) {\n let newTypes = [];\n for (let type of this.types) {\n let newProps = null;\n for (let source of props) {\n let add = source(type);\n if (add) {\n if (!newProps)\n newProps = Object.assign({}, type.props);\n newProps[add[0].id] = add[1];\n }\n }\n newTypes.push(newProps ? new NodeType(type.name, newProps, type.id, type.flags) : type);\n }\n return new NodeSet(newTypes);\n }\n}\nconst CachedNode = new WeakMap(), CachedInnerNode = new WeakMap();\n/**\nOptions that control iteration. Can be combined with the `|`\noperator to enable multiple ones.\n*/\nvar IterMode;\n(function (IterMode) {\n /**\n When enabled, iteration will only visit [`Tree`](#common.Tree)\n objects, not nodes packed into\n [`TreeBuffer`](#common.TreeBuffer)s.\n */\n IterMode[IterMode[\"ExcludeBuffers\"] = 1] = \"ExcludeBuffers\";\n /**\n Enable this to make iteration include anonymous nodes (such as\n the nodes that wrap repeated grammar constructs into a balanced\n tree).\n */\n IterMode[IterMode[\"IncludeAnonymous\"] = 2] = \"IncludeAnonymous\";\n /**\n By default, regular [mounted](#common.NodeProp^mounted) nodes\n replace their base node in iteration. Enable this to ignore them\n instead.\n */\n IterMode[IterMode[\"IgnoreMounts\"] = 4] = \"IgnoreMounts\";\n /**\n This option only applies in\n [`enter`](#common.SyntaxNode.enter)-style methods. It tells the\n library to not enter mounted overlays if one covers the given\n position.\n */\n IterMode[IterMode[\"IgnoreOverlays\"] = 8] = \"IgnoreOverlays\";\n})(IterMode || (IterMode = {}));\n/**\nA piece of syntax tree. There are two ways to approach these\ntrees: the way they are actually stored in memory, and the\nconvenient way.\n\nSyntax trees are stored as a tree of `Tree` and `TreeBuffer`\nobjects. By packing detail information into `TreeBuffer` leaf\nnodes, the representation is made a lot more memory-efficient.\n\nHowever, when you want to actually work with tree nodes, this\nrepresentation is very awkward, so most client code will want to\nuse the [`TreeCursor`](#common.TreeCursor) or\n[`SyntaxNode`](#common.SyntaxNode) interface instead, which provides\na view on some part of this data structure, and can be used to\nmove around to adjacent nodes.\n*/\nclass Tree {\n /**\n Construct a new tree. See also [`Tree.build`](#common.Tree^build).\n */\n constructor(\n /**\n The type of the top node.\n */\n type, \n /**\n This node's child nodes.\n */\n children, \n /**\n The positions (offsets relative to the start of this tree) of\n the children.\n */\n positions, \n /**\n The total length of this tree\n */\n length, \n /**\n Per-node [node props](#common.NodeProp) to associate with this node.\n */\n props) {\n this.type = type;\n this.children = children;\n this.positions = positions;\n this.length = length;\n /**\n @internal\n */\n this.props = null;\n if (props && props.length) {\n this.props = Object.create(null);\n for (let [prop, value] of props)\n this.props[typeof prop == \"number\" ? prop : prop.id] = value;\n }\n }\n /**\n @internal\n */\n toString() {\n let mounted = MountedTree.get(this);\n if (mounted && !mounted.overlay)\n return mounted.tree.toString();\n let children = \"\";\n for (let ch of this.children) {\n let str = ch.toString();\n if (str) {\n if (children)\n children += \",\";\n children += str;\n }\n }\n return !this.type.name ? children :\n (/\\W/.test(this.type.name) && !this.type.isError ? JSON.stringify(this.type.name) : this.type.name) +\n (children.length ? \"(\" + children + \")\" : \"\");\n }\n /**\n Get a [tree cursor](#common.TreeCursor) positioned at the top of\n the tree. Mode can be used to [control](#common.IterMode) which\n nodes the cursor visits.\n */\n cursor(mode = 0) {\n return new TreeCursor(this.topNode, mode);\n }\n /**\n Get a [tree cursor](#common.TreeCursor) pointing into this tree\n at the given position and side (see\n [`moveTo`](#common.TreeCursor.moveTo).\n */\n cursorAt(pos, side = 0, mode = 0) {\n let scope = CachedNode.get(this) || this.topNode;\n let cursor = new TreeCursor(scope);\n cursor.moveTo(pos, side);\n CachedNode.set(this, cursor._tree);\n return cursor;\n }\n /**\n Get a [syntax node](#common.SyntaxNode) object for the top of the\n tree.\n */\n get topNode() {\n return new TreeNode(this, 0, 0, null);\n }\n /**\n Get the [syntax node](#common.SyntaxNode) at the given position.\n If `side` is -1, this will move into nodes that end at the\n position. If 1, it'll move into nodes that start at the\n position. With 0, it'll only enter nodes that cover the position\n from both sides.\n \n Note that this will not enter\n [overlays](#common.MountedTree.overlay), and you often want\n [`resolveInner`](#common.Tree.resolveInner) instead.\n */\n resolve(pos, side = 0) {\n let node = resolveNode(CachedNode.get(this) || this.topNode, pos, side, false);\n CachedNode.set(this, node);\n return node;\n }\n /**\n Like [`resolve`](#common.Tree.resolve), but will enter\n [overlaid](#common.MountedTree.overlay) nodes, producing a syntax node\n pointing into the innermost overlaid tree at the given position\n (with parent links going through all parent structure, including\n the host trees).\n */\n resolveInner(pos, side = 0) {\n let node = resolveNode(CachedInnerNode.get(this) || this.topNode, pos, side, true);\n CachedInnerNode.set(this, node);\n return node;\n }\n /**\n In some situations, it can be useful to iterate through all\n nodes around a position, including those in overlays that don't\n directly cover the position. This method gives you an iterator\n that will produce all nodes, from small to big, around the given\n position.\n */\n resolveStack(pos, side = 0) {\n return stackIterator(this, pos, side);\n }\n /**\n Iterate over the tree and its children, calling `enter` for any\n node that touches the `from`/`to` region (if given) before\n running over such a node's children, and `leave` (if given) when\n leaving the node. When `enter` returns `false`, that node will\n not have its children iterated over (or `leave` called).\n */\n iterate(spec) {\n let { enter, leave, from = 0, to = this.length } = spec;\n let mode = spec.mode || 0, anon = (mode & IterMode.IncludeAnonymous) > 0;\n for (let c = this.cursor(mode | IterMode.IncludeAnonymous);;) {\n let entered = false;\n if (c.from <= to && c.to >= from && (!anon && c.type.isAnonymous || enter(c) !== false)) {\n if (c.firstChild())\n continue;\n entered = true;\n }\n for (;;) {\n if (entered && leave && (anon || !c.type.isAnonymous))\n leave(c);\n if (c.nextSibling())\n break;\n if (!c.parent())\n return;\n entered = true;\n }\n }\n }\n /**\n Get the value of the given [node prop](#common.NodeProp) for this\n node. Works with both per-node and per-type props.\n */\n prop(prop) {\n return !prop.perNode ? this.type.prop(prop) : this.props ? this.props[prop.id] : undefined;\n }\n /**\n Returns the node's [per-node props](#common.NodeProp.perNode) in a\n format that can be passed to the [`Tree`](#common.Tree)\n constructor.\n */\n get propValues() {\n let result = [];\n if (this.props)\n for (let id in this.props)\n result.push([+id, this.props[id]]);\n return result;\n }\n /**\n Balance the direct children of this tree, producing a copy of\n which may have children grouped into subtrees with type\n [`NodeType.none`](#common.NodeType^none).\n */\n balance(config = {}) {\n return this.children.length <= 8 /* Balance.BranchFactor */ ? this :\n balanceRange(NodeType.none, this.children, this.positions, 0, this.children.length, 0, this.length, (children, positions, length) => new Tree(this.type, children, positions, length, this.propValues), config.makeTree || ((children, positions, length) => new Tree(NodeType.none, children, positions, length)));\n }\n /**\n Build a tree from a postfix-ordered buffer of node information,\n or a cursor over such a buffer.\n */\n static build(data) { return buildTree(data); }\n}\n/**\nThe empty tree\n*/\nTree.empty = new Tree(NodeType.none, [], [], 0);\nclass FlatBufferCursor {\n constructor(buffer, index) {\n this.buffer = buffer;\n this.index = index;\n }\n get id() { return this.buffer[this.index - 4]; }\n get start() { return this.buffer[this.index - 3]; }\n get end() { return this.buffer[this.index - 2]; }\n get size() { return this.buffer[this.index - 1]; }\n get pos() { return this.index; }\n next() { this.index -= 4; }\n fork() { return new FlatBufferCursor(this.buffer, this.index); }\n}\n/**\nTree buffers contain (type, start, end, endIndex) quads for each\nnode. In such a buffer, nodes are stored in prefix order (parents\nbefore children, with the endIndex of the parent indicating which\nchildren belong to it).\n*/\nclass TreeBuffer {\n /**\n Create a tree buffer.\n */\n constructor(\n /**\n The buffer's content.\n */\n buffer, \n /**\n The total length of the group of nodes in the buffer.\n */\n length, \n /**\n The node set used in this buffer.\n */\n set) {\n this.buffer = buffer;\n this.length = length;\n this.set = set;\n }\n /**\n @internal\n */\n get type() { return NodeType.none; }\n /**\n @internal\n */\n toString() {\n let result = [];\n for (let index = 0; index < this.buffer.length;) {\n result.push(this.childString(index));\n index = this.buffer[index + 3];\n }\n return result.join(\",\");\n }\n /**\n @internal\n */\n childString(index) {\n let id = this.buffer[index], endIndex = this.buffer[index + 3];\n let type = this.set.types[id], result = type.name;\n if (/\\W/.test(result) && !type.isError)\n result = JSON.stringify(result);\n index += 4;\n if (endIndex == index)\n return result;\n let children = [];\n while (index < endIndex) {\n children.push(this.childString(index));\n index = this.buffer[index + 3];\n }\n return result + \"(\" + children.join(\",\") + \")\";\n }\n /**\n @internal\n */\n findChild(startIndex, endIndex, dir, pos, side) {\n let { buffer } = this, pick = -1;\n for (let i = startIndex; i != endIndex; i = buffer[i + 3]) {\n if (checkSide(side, pos, buffer[i + 1], buffer[i + 2])) {\n pick = i;\n if (dir > 0)\n break;\n }\n }\n return pick;\n }\n /**\n @internal\n */\n slice(startI, endI, from) {\n let b = this.buffer;\n let copy = new Uint16Array(endI - startI), len = 0;\n for (let i = startI, j = 0; i < endI;) {\n copy[j++] = b[i++];\n copy[j++] = b[i++] - from;\n let to = copy[j++] = b[i++] - from;\n copy[j++] = b[i++] - startI;\n len = Math.max(len, to);\n }\n return new TreeBuffer(copy, len, this.set);\n }\n}\nfunction checkSide(side, pos, from, to) {\n switch (side) {\n case -2 /* Side.Before */: return from < pos;\n case -1 /* Side.AtOrBefore */: return to >= pos && from < pos;\n case 0 /* Side.Around */: return from < pos && to > pos;\n case 1 /* Side.AtOrAfter */: return from <= pos && to > pos;\n case 2 /* Side.After */: return to > pos;\n case 4 /* Side.DontCare */: return true;\n }\n}\nfunction resolveNode(node, pos, side, overlays) {\n var _a;\n // Move up to a node that actually holds the position, if possible\n while (node.from == node.to ||\n (side < 1 ? node.from >= pos : node.from > pos) ||\n (side > -1 ? node.to <= pos : node.to < pos)) {\n let parent = !overlays && node instanceof TreeNode && node.index < 0 ? null : node.parent;\n if (!parent)\n return node;\n node = parent;\n }\n let mode = overlays ? 0 : IterMode.IgnoreOverlays;\n // Must go up out of overlays when those do not overlap with pos\n if (overlays)\n for (let scan = node, parent = scan.parent; parent; scan = parent, parent = scan.parent) {\n if (scan instanceof TreeNode && scan.index < 0 && ((_a = parent.enter(pos, side, mode)) === null || _a === void 0 ? void 0 : _a.from) != scan.from)\n node = parent;\n }\n for (;;) {\n let inner = node.enter(pos, side, mode);\n if (!inner)\n return node;\n node = inner;\n }\n}\nclass BaseNode {\n cursor(mode = 0) { return new TreeCursor(this, mode); }\n getChild(type, before = null, after = null) {\n let r = getChildren(this, type, before, after);\n return r.length ? r[0] : null;\n }\n getChildren(type, before = null, after = null) {\n return getChildren(this, type, before, after);\n }\n resolve(pos, side = 0) {\n return resolveNode(this, pos, side, false);\n }\n resolveInner(pos, side = 0) {\n return resolveNode(this, pos, side, true);\n }\n matchContext(context) {\n return matchNodeContext(this, context);\n }\n enterUnfinishedNodesBefore(pos) {\n let scan = this.childBefore(pos), node = this;\n while (scan) {\n let last = scan.lastChild;\n if (!last || last.to != scan.to)\n break;\n if (last.type.isError && last.from == last.to) {\n node = scan;\n scan = last.prevSibling;\n }\n else {\n scan = last;\n }\n }\n return node;\n }\n get node() { return this; }\n get next() { return this.parent; }\n}\nclass TreeNode extends BaseNode {\n constructor(_tree, from, \n // Index in parent node, set to -1 if the node is not a direct child of _parent.node (overlay)\n index, _parent) {\n super();\n this._tree = _tree;\n this.from = from;\n this.index = index;\n this._parent = _parent;\n }\n get type() { return this._tree.type; }\n get name() { return this._tree.type.name; }\n get to() { return this.from + this._tree.length; }\n nextChild(i, dir, pos, side, mode = 0) {\n for (let parent = this;;) {\n for (let { children, positions } = parent._tree, e = dir > 0 ? children.length : -1; i != e; i += dir) {\n let next = children[i], start = positions[i] + parent.from;\n if (!checkSide(side, pos, start, start + next.length))\n continue;\n if (next instanceof TreeBuffer) {\n if (mode & IterMode.ExcludeBuffers)\n continue;\n let index = next.findChild(0, next.buffer.length, dir, pos - start, side);\n if (index > -1)\n return new BufferNode(new BufferContext(parent, next, i, start), null, index);\n }\n else if ((mode & IterMode.IncludeAnonymous) || (!next.type.isAnonymous || hasChild(next))) {\n let mounted;\n if (!(mode & IterMode.IgnoreMounts) && (mounted = MountedTree.get(next)) && !mounted.overlay)\n return new TreeNode(mounted.tree, start, i, parent);\n let inner = new TreeNode(next, start, i, parent);\n return (mode & IterMode.IncludeAnonymous) || !inner.type.isAnonymous ? inner\n : inner.nextChild(dir < 0 ? next.children.length - 1 : 0, dir, pos, side);\n }\n }\n if ((mode & IterMode.IncludeAnonymous) || !parent.type.isAnonymous)\n return null;\n if (parent.index >= 0)\n i = parent.index + dir;\n else\n i = dir < 0 ? -1 : parent._parent._tree.children.length;\n parent = parent._parent;\n if (!parent)\n return null;\n }\n }\n get firstChild() { return this.nextChild(0, 1, 0, 4 /* Side.DontCare */); }\n get lastChild() { return this.nextChild(this._tree.children.length - 1, -1, 0, 4 /* Side.DontCare */); }\n childAfter(pos) { return this.nextChild(0, 1, pos, 2 /* Side.After */); }\n childBefore(pos) { return this.nextChild(this._tree.children.length - 1, -1, pos, -2 /* Side.Before */); }\n enter(pos, side, mode = 0) {\n let mounted;\n if (!(mode & IterMode.IgnoreOverlays) && (mounted = MountedTree.get(this._tree)) && mounted.overlay) {\n let rPos = pos - this.from;\n for (let { from, to } of mounted.overlay) {\n if ((side > 0 ? from <= rPos : from < rPos) &&\n (side < 0 ? to >= rPos : to > rPos))\n return new TreeNode(mounted.tree, mounted.overlay[0].from + this.from, -1, this);\n }\n }\n return this.nextChild(0, 1, pos, side, mode);\n }\n nextSignificantParent() {\n let val = this;\n while (val.type.isAnonymous && val._parent)\n val = val._parent;\n return val;\n }\n get parent() {\n return this._parent ? this._parent.nextSignificantParent() : null;\n }\n get nextSibling() {\n return this._parent && this.index >= 0 ? this._parent.nextChild(this.index + 1, 1, 0, 4 /* Side.DontCare */) : null;\n }\n get prevSibling() {\n return this._parent && this.index >= 0 ? this._parent.nextChild(this.index - 1, -1, 0, 4 /* Side.DontCare */) : null;\n }\n get tree() { return this._tree; }\n toTree() { return this._tree; }\n /**\n @internal\n */\n toString() { return this._tree.toString(); }\n}\nfunction getChildren(node, type, before, after) {\n let cur = node.cursor(), result = [];\n if (!cur.firstChild())\n return result;\n if (before != null)\n while (!cur.type.is(before))\n if (!cur.nextSibling())\n return result;\n for (;;) {\n if (after != null && cur.type.is(after))\n return result;\n if (cur.type.is(type))\n result.push(cur.node);\n if (!cur.nextSibling())\n return after == null ? result : [];\n }\n}\nfunction matchNodeContext(node, context, i = context.length - 1) {\n for (let p = node.parent; i >= 0; p = p.parent) {\n if (!p)\n return false;\n if (!p.type.isAnonymous) {\n if (context[i] && context[i] != p.name)\n return false;\n i--;\n }\n }\n return true;\n}\nclass BufferContext {\n constructor(parent, buffer, index, start) {\n this.parent = parent;\n this.buffer = buffer;\n this.index = index;\n this.start = start;\n }\n}\nclass BufferNode extends BaseNode {\n get name() { return this.type.name; }\n get from() { return this.context.start + this.context.buffer.buffer[this.index + 1]; }\n get to() { return this.context.start + this.context.buffer.buffer[this.index + 2]; }\n constructor(context, _parent, index) {\n super();\n this.context = context;\n this._parent = _parent;\n this.index = index;\n this.type = context.buffer.set.types[context.buffer.buffer[index]];\n }\n child(dir, pos, side) {\n let { buffer } = this.context;\n let index = buffer.findChild(this.index + 4, buffer.buffer[this.index + 3], dir, pos - this.context.start, side);\n return index < 0 ? null : new BufferNode(this.context, this, index);\n }\n get firstChild() { return this.child(1, 0, 4 /* Side.DontCare */); }\n get lastChild() { return this.child(-1, 0, 4 /* Side.DontCare */); }\n childAfter(pos) { return this.child(1, pos, 2 /* Side.After */); }\n childBefore(pos) { return this.child(-1, pos, -2 /* Side.Before */); }\n enter(pos, side, mode = 0) {\n if (mode & IterMode.ExcludeBuffers)\n return null;\n let { buffer } = this.context;\n let index = buffer.findChild(this.index + 4, buffer.buffer[this.index + 3], side > 0 ? 1 : -1, pos - this.context.start, side);\n return index < 0 ? null : new BufferNode(this.context, this, index);\n }\n get parent() {\n return this._parent || this.context.parent.nextSignificantParent();\n }\n externalSibling(dir) {\n return this._parent ? null : this.context.parent.nextChild(this.context.index + dir, dir, 0, 4 /* Side.DontCare */);\n }\n get nextSibling() {\n let { buffer } = this.context;\n let after = buffer.buffer[this.index + 3];\n if (after < (this._parent ? buffer.buffer[this._parent.index + 3] : buffer.buffer.length))\n return new BufferNode(this.context, this._parent, after);\n return this.externalSibling(1);\n }\n get prevSibling() {\n let { buffer } = this.context;\n let parentStart = this._parent ? this._parent.index + 4 : 0;\n if (this.index == parentStart)\n return this.externalSibling(-1);\n return new BufferNode(this.context, this._parent, buffer.findChild(parentStart, this.index, -1, 0, 4 /* Side.DontCare */));\n }\n get tree() { return null; }\n toTree() {\n let children = [], positions = [];\n let { buffer } = this.context;\n let startI = this.index + 4, endI = buffer.buffer[this.index + 3];\n if (endI > startI) {\n let from = buffer.buffer[this.index + 1];\n children.push(buffer.slice(startI, endI, from));\n positions.push(0);\n }\n return new Tree(this.type, children, positions, this.to - this.from);\n }\n /**\n @internal\n */\n toString() { return this.context.buffer.childString(this.index); }\n}\nfunction iterStack(heads) {\n if (!heads.length)\n return null;\n let pick = 0, picked = heads[0];\n for (let i = 1; i < heads.length; i++) {\n let node = heads[i];\n if (node.from > picked.from || node.to < picked.to) {\n picked = node;\n pick = i;\n }\n }\n let next = picked instanceof TreeNode && picked.index < 0 ? null : picked.parent;\n let newHeads = heads.slice();\n if (next)\n newHeads[pick] = next;\n else\n newHeads.splice(pick, 1);\n return new StackIterator(newHeads, picked);\n}\nclass StackIterator {\n constructor(heads, node) {\n this.heads = heads;\n this.node = node;\n }\n get next() { return iterStack(this.heads); }\n}\nfunction stackIterator(tree, pos, side) {\n let inner = tree.resolveInner(pos, side), layers = null;\n for (let scan = inner instanceof TreeNode ? inner : inner.context.parent; scan; scan = scan.parent) {\n if (scan.index < 0) { // This is an overlay root\n let parent = scan.parent;\n (layers || (layers = [inner])).push(parent.resolve(pos, side));\n scan = parent;\n }\n else {\n let mount = MountedTree.get(scan.tree);\n // Relevant overlay branching off\n if (mount && mount.overlay && mount.overlay[0].from <= pos && mount.overlay[mount.overlay.length - 1].to >= pos) {\n let root = new TreeNode(mount.tree, mount.overlay[0].from + scan.from, -1, scan);\n (layers || (layers = [inner])).push(resolveNode(root, pos, side, false));\n }\n }\n }\n return layers ? iterStack(layers) : inner;\n}\n/**\nA tree cursor object focuses on a given node in a syntax tree, and\nallows you to move to adjacent nodes.\n*/\nclass TreeCursor {\n /**\n Shorthand for `.type.name`.\n */\n get name() { return this.type.name; }\n /**\n @internal\n */\n constructor(node, \n /**\n @internal\n */\n mode = 0) {\n this.mode = mode;\n /**\n @internal\n */\n this.buffer = null;\n this.stack = [];\n /**\n @internal\n */\n this.index = 0;\n this.bufferNode = null;\n if (node instanceof TreeNode) {\n this.yieldNode(node);\n }\n else {\n this._tree = node.context.parent;\n this.buffer = node.context;\n for (let n = node._parent; n; n = n._parent)\n this.stack.unshift(n.index);\n this.bufferNode = node;\n this.yieldBuf(node.index);\n }\n }\n yieldNode(node) {\n if (!node)\n return false;\n this._tree = node;\n this.type = node.type;\n this.from = node.from;\n this.to = node.to;\n return true;\n }\n yieldBuf(index, type) {\n this.index = index;\n let { start, buffer } = this.buffer;\n this.type = type || buffer.set.types[buffer.buffer[index]];\n this.from = start + buffer.buffer[index + 1];\n this.to = start + buffer.buffer[index + 2];\n return true;\n }\n /**\n @internal\n */\n yield(node) {\n if (!node)\n return false;\n if (node instanceof TreeNode) {\n this.buffer = null;\n return this.yieldNode(node);\n }\n this.buffer = node.context;\n return this.yieldBuf(node.index, node.type);\n }\n /**\n @internal\n */\n toString() {\n return this.buffer ? this.buffer.buffer.childString(this.index) : this._tree.toString();\n }\n /**\n @internal\n */\n enterChild(dir, pos, side) {\n if (!this.buffer)\n return this.yield(this._tree.nextChild(dir < 0 ? this._tree._tree.children.length - 1 : 0, dir, pos, side, this.mode));\n let { buffer } = this.buffer;\n let index = buffer.findChild(this.index + 4, buffer.buffer[this.index + 3], dir, pos - this.buffer.start, side);\n if (index < 0)\n return false;\n this.stack.push(this.index);\n return this.yieldBuf(index);\n }\n /**\n Move the cursor to this node's first child. When this returns\n false, the node has no child, and the cursor has not been moved.\n */\n firstChild() { return this.enterChild(1, 0, 4 /* Side.DontCare */); }\n /**\n Move the cursor to this node's last child.\n */\n lastChild() { return this.enterChild(-1, 0, 4 /* Side.DontCare */); }\n /**\n Move the cursor to the first child that ends after `pos`.\n */\n childAfter(pos) { return this.enterChild(1, pos, 2 /* Side.After */); }\n /**\n Move to the last child that starts before `pos`.\n */\n childBefore(pos) { return this.enterChild(-1, pos, -2 /* Side.Before */); }\n /**\n Move the cursor to the child around `pos`. If side is -1 the\n child may end at that position, when 1 it may start there. This\n will also enter [overlaid](#common.MountedTree.overlay)\n [mounted](#common.NodeProp^mounted) trees unless `overlays` is\n set to false.\n */\n enter(pos, side, mode = this.mode) {\n if (!this.buffer)\n return this.yield(this._tree.enter(pos, side, mode));\n return mode & IterMode.ExcludeBuffers ? false : this.enterChild(1, pos, side);\n }\n /**\n Move to the node's parent node, if this isn't the top node.\n */\n parent() {\n if (!this.buffer)\n return this.yieldNode((this.mode & IterMode.IncludeAnonymous) ? this._tree._parent : this._tree.parent);\n if (this.stack.length)\n return this.yieldBuf(this.stack.pop());\n let parent = (this.mode & IterMode.IncludeAnonymous) ? this.buffer.parent : this.buffer.parent.nextSignificantParent();\n this.buffer = null;\n return this.yieldNode(parent);\n }\n /**\n @internal\n */\n sibling(dir) {\n if (!this.buffer)\n return !this._tree._parent ? false\n : this.yield(this._tree.index < 0 ? null\n : this._tree._parent.nextChild(this._tree.index + dir, dir, 0, 4 /* Side.DontCare */, this.mode));\n let { buffer } = this.buffer, d = this.stack.length - 1;\n if (dir < 0) {\n let parentStart = d < 0 ? 0 : this.stack[d] + 4;\n if (this.index != parentStart)\n return this.yieldBuf(buffer.findChild(parentStart, this.index, -1, 0, 4 /* Side.DontCare */));\n }\n else {\n let after = buffer.buffer[this.index + 3];\n if (after < (d < 0 ? buffer.buffer.length : buffer.buffer[this.stack[d] + 3]))\n return this.yieldBuf(after);\n }\n return d < 0 ? this.yield(this.buffer.parent.nextChild(this.buffer.index + dir, dir, 0, 4 /* Side.DontCare */, this.mode)) : false;\n }\n /**\n Move to this node's next sibling, if any.\n */\n nextSibling() { return this.sibling(1); }\n /**\n Move to this node's previous sibling, if any.\n */\n prevSibling() { return this.sibling(-1); }\n atLastNode(dir) {\n let index, parent, { buffer } = this;\n if (buffer) {\n if (dir > 0) {\n if (this.index < buffer.buffer.buffer.length)\n return false;\n }\n else {\n for (let i = 0; i < this.index; i++)\n if (buffer.buffer.buffer[i + 3] < this.index)\n return false;\n }\n ({ index, parent } = buffer);\n }\n else {\n ({ index, _parent: parent } = this._tree);\n }\n for (; parent; { index, _parent: parent } = parent) {\n if (index > -1)\n for (let i = index + dir, e = dir < 0 ? -1 : parent._tree.children.length; i != e; i += dir) {\n let child = parent._tree.children[i];\n if ((this.mode & IterMode.IncludeAnonymous) ||\n child instanceof TreeBuffer ||\n !child.type.isAnonymous ||\n hasChild(child))\n return false;\n }\n }\n return true;\n }\n move(dir, enter) {\n if (enter && this.enterChild(dir, 0, 4 /* Side.DontCare */))\n return true;\n for (;;) {\n if (this.sibling(dir))\n return true;\n if (this.atLastNode(dir) || !this.parent())\n return false;\n }\n }\n /**\n Move to the next node in a\n [pre-order](https://en.wikipedia.org/wiki/Tree_traversal#Pre-order,_NLR)\n traversal, going from a node to its first child or, if the\n current node is empty or `enter` is false, its next sibling or\n the next sibling of the first parent node that has one.\n */\n next(enter = true) { return this.move(1, enter); }\n /**\n Move to the next node in a last-to-first pre-order traveral. A\n node is followed by its last child or, if it has none, its\n previous sibling or the previous sibling of the first parent\n node that has one.\n */\n prev(enter = true) { return this.move(-1, enter); }\n /**\n Move the cursor to the innermost node that covers `pos`. If\n `side` is -1, it will enter nodes that end at `pos`. If it is 1,\n it will enter nodes that start at `pos`.\n */\n moveTo(pos, side = 0) {\n // Move up to a node that actually holds the position, if possible\n while (this.from == this.to ||\n (side < 1 ? this.from >= pos : this.from > pos) ||\n (side > -1 ? this.to <= pos : this.to < pos))\n if (!this.parent())\n break;\n // Then scan down into child nodes as far as possible\n while (this.enterChild(1, pos, side)) { }\n return this;\n }\n /**\n Get a [syntax node](#common.SyntaxNode) at the cursor's current\n position.\n */\n get node() {\n if (!this.buffer)\n return this._tree;\n let cache = this.bufferNode, result = null, depth = 0;\n if (cache && cache.context == this.buffer) {\n scan: for (let index = this.index, d = this.stack.length; d >= 0;) {\n for (let c = cache; c; c = c._parent)\n if (c.index == index) {\n if (index == this.index)\n return c;\n result = c;\n depth = d + 1;\n break scan;\n }\n index = this.stack[--d];\n }\n }\n for (let i = depth; i < this.stack.length; i++)\n result = new BufferNode(this.buffer, result, this.stack[i]);\n return this.bufferNode = new BufferNode(this.buffer, result, this.index);\n }\n /**\n Get the [tree](#common.Tree) that represents the current node, if\n any. Will return null when the node is in a [tree\n buffer](#common.TreeBuffer).\n */\n get tree() {\n return this.buffer ? null : this._tree._tree;\n }\n /**\n Iterate over the current node and all its descendants, calling\n `enter` when entering a node and `leave`, if given, when leaving\n one. When `enter` returns `false`, any children of that node are\n skipped, and `leave` isn't called for it.\n */\n iterate(enter, leave) {\n for (let depth = 0;;) {\n let mustLeave = false;\n if (this.type.isAnonymous || enter(this) !== false) {\n if (this.firstChild()) {\n depth++;\n continue;\n }\n if (!this.type.isAnonymous)\n mustLeave = true;\n }\n for (;;) {\n if (mustLeave && leave)\n leave(this);\n mustLeave = this.type.isAnonymous;\n if (this.nextSibling())\n break;\n if (!depth)\n return;\n this.parent();\n depth--;\n mustLeave = true;\n }\n }\n }\n /**\n Test whether the current node matches a given context—a sequence\n of direct parent node names. Empty strings in the context array\n are treated as wildcards.\n */\n matchContext(context) {\n if (!this.buffer)\n return matchNodeContext(this.node, context);\n let { buffer } = this.buffer, { types } = buffer.set;\n for (let i = context.length - 1, d = this.stack.length - 1; i >= 0; d--) {\n if (d < 0)\n return matchNodeContext(this.node, context, i);\n let type = types[buffer.buffer[this.stack[d]]];\n if (!type.isAnonymous) {\n if (context[i] && context[i] != type.name)\n return false;\n i--;\n }\n }\n return true;\n }\n}\nfunction hasChild(tree) {\n return tree.children.some(ch => ch instanceof TreeBuffer || !ch.type.isAnonymous || hasChild(ch));\n}\nfunction buildTree(data) {\n var _a;\n let { buffer, nodeSet, maxBufferLength = DefaultBufferLength, reused = [], minRepeatType = nodeSet.types.length } = data;\n let cursor = Array.isArray(buffer) ? new FlatBufferCursor(buffer, buffer.length) : buffer;\n let types = nodeSet.types;\n let contextHash = 0, lookAhead = 0;\n function takeNode(parentStart, minPos, children, positions, inRepeat, depth) {\n let { id, start, end, size } = cursor;\n let lookAheadAtStart = lookAhead;\n while (size < 0) {\n cursor.next();\n if (size == -1 /* SpecialRecord.Reuse */) {\n let node = reused[id];\n children.push(node);\n positions.push(start - parentStart);\n return;\n }\n else if (size == -3 /* SpecialRecord.ContextChange */) { // Context change\n contextHash = id;\n return;\n }\n else if (size == -4 /* SpecialRecord.LookAhead */) {\n lookAhead = id;\n return;\n }\n else {\n throw new RangeError(`Unrecognized record size: ${size}`);\n }\n }\n let type = types[id], node, buffer;\n let startPos = start - parentStart;\n if (end - start <= maxBufferLength && (buffer = findBufferSize(cursor.pos - minPos, inRepeat))) {\n // Small enough for a buffer, and no reused nodes inside\n let data = new Uint16Array(buffer.size - buffer.skip);\n let endPos = cursor.pos - buffer.size, index = data.length;\n while (cursor.pos > endPos)\n index = copyToBuffer(buffer.start, data, index);\n node = new TreeBuffer(data, end - buffer.start, nodeSet);\n startPos = buffer.start - parentStart;\n }\n else { // Make it a node\n let endPos = cursor.pos - size;\n cursor.next();\n let localChildren = [], localPositions = [];\n let localInRepeat = id >= minRepeatType ? id : -1;\n let lastGroup = 0, lastEnd = end;\n while (cursor.pos > endPos) {\n if (localInRepeat >= 0 && cursor.id == localInRepeat && cursor.size >= 0) {\n if (cursor.end <= lastEnd - maxBufferLength) {\n makeRepeatLeaf(localChildren, localPositions, start, lastGroup, cursor.end, lastEnd, localInRepeat, lookAheadAtStart);\n lastGroup = localChildren.length;\n lastEnd = cursor.end;\n }\n cursor.next();\n }\n else if (depth > 2500 /* CutOff.Depth */) {\n takeFlatNode(start, endPos, localChildren, localPositions);\n }\n else {\n takeNode(start, endPos, localChildren, localPositions, localInRepeat, depth + 1);\n }\n }\n if (localInRepeat >= 0 && lastGroup > 0 && lastGroup < localChildren.length)\n makeRepeatLeaf(localChildren, localPositions, start, lastGroup, start, lastEnd, localInRepeat, lookAheadAtStart);\n localChildren.reverse();\n localPositions.reverse();\n if (localInRepeat > -1 && lastGroup > 0) {\n let make = makeBalanced(type);\n node = balanceRange(type, localChildren, localPositions, 0, localChildren.length, 0, end - start, make, make);\n }\n else {\n node = makeTree(type, localChildren, localPositions, end - start, lookAheadAtStart - end);\n }\n }\n children.push(node);\n positions.push(startPos);\n }\n function takeFlatNode(parentStart, minPos, children, positions) {\n let nodes = []; // Temporary, inverted array of leaf nodes found, with absolute positions\n let nodeCount = 0, stopAt = -1;\n while (cursor.pos > minPos) {\n let { id, start, end, size } = cursor;\n if (size > 4) { // Not a leaf\n cursor.next();\n }\n else if (stopAt > -1 && start < stopAt) {\n break;\n }\n else {\n if (stopAt < 0)\n stopAt = end - maxBufferLength;\n nodes.push(id, start, end);\n nodeCount++;\n cursor.next();\n }\n }\n if (nodeCount) {\n let buffer = new Uint16Array(nodeCount * 4);\n let start = nodes[nodes.length - 2];\n for (let i = nodes.length - 3, j = 0; i >= 0; i -= 3) {\n buffer[j++] = nodes[i];\n buffer[j++] = nodes[i + 1] - start;\n buffer[j++] = nodes[i + 2] - start;\n buffer[j++] = j;\n }\n children.push(new TreeBuffer(buffer, nodes[2] - start, nodeSet));\n positions.push(start - parentStart);\n }\n }\n function makeBalanced(type) {\n return (children, positions, length) => {\n let lookAhead = 0, lastI = children.length - 1, last, lookAheadProp;\n if (lastI >= 0 && (last = children[lastI]) instanceof Tree) {\n if (!lastI && last.type == type && last.length == length)\n return last;\n if (lookAheadProp = last.prop(NodeProp.lookAhead))\n lookAhead = positions[lastI] + last.length + lookAheadProp;\n }\n return makeTree(type, children, positions, length, lookAhead);\n };\n }\n function makeRepeatLeaf(children, positions, base, i, from, to, type, lookAhead) {\n let localChildren = [], localPositions = [];\n while (children.length > i) {\n localChildren.push(children.pop());\n localPositions.push(positions.pop() + base - from);\n }\n children.push(makeTree(nodeSet.types[type], localChildren, localPositions, to - from, lookAhead - to));\n positions.push(from - base);\n }\n function makeTree(type, children, positions, length, lookAhead = 0, props) {\n if (contextHash) {\n let pair = [NodeProp.contextHash, contextHash];\n props = props ? [pair].concat(props) : [pair];\n }\n if (lookAhead > 25) {\n let pair = [NodeProp.lookAhead, lookAhead];\n props = props ? [pair].concat(props) : [pair];\n }\n return new Tree(type, children, positions, length, props);\n }\n function findBufferSize(maxSize, inRepeat) {\n // Scan through the buffer to find previous siblings that fit\n // together in a TreeBuffer, and don't contain any reused nodes\n // (which can't be stored in a buffer).\n // If `inRepeat` is > -1, ignore node boundaries of that type for\n // nesting, but make sure the end falls either at the start\n // (`maxSize`) or before such a node.\n let fork = cursor.fork();\n let size = 0, start = 0, skip = 0, minStart = fork.end - maxBufferLength;\n let result = { size: 0, start: 0, skip: 0 };\n scan: for (let minPos = fork.pos - maxSize; fork.pos > minPos;) {\n let nodeSize = fork.size;\n // Pretend nested repeat nodes of the same type don't exist\n if (fork.id == inRepeat && nodeSize >= 0) {\n // Except that we store the current state as a valid return\n // value.\n result.size = size;\n result.start = start;\n result.skip = skip;\n skip += 4;\n size += 4;\n fork.next();\n continue;\n }\n let startPos = fork.pos - nodeSize;\n if (nodeSize < 0 || startPos < minPos || fork.start < minStart)\n break;\n let localSkipped = fork.id >= minRepeatType ? 4 : 0;\n let nodeStart = fork.start;\n fork.next();\n while (fork.pos > startPos) {\n if (fork.size < 0) {\n if (fork.size == -3 /* SpecialRecord.ContextChange */)\n localSkipped += 4;\n else\n break scan;\n }\n else if (fork.id >= minRepeatType) {\n localSkipped += 4;\n }\n fork.next();\n }\n start = nodeStart;\n size += nodeSize;\n skip += localSkipped;\n }\n if (inRepeat < 0 || size == maxSize) {\n result.size = size;\n result.start = start;\n result.skip = skip;\n }\n return result.size > 4 ? result : undefined;\n }\n function copyToBuffer(bufferStart, buffer, index) {\n let { id, start, end, size } = cursor;\n cursor.next();\n if (size >= 0 && id < minRepeatType) {\n let startIndex = index;\n if (size > 4) {\n let endPos = cursor.pos - (size - 4);\n while (cursor.pos > endPos)\n index = copyToBuffer(bufferStart, buffer, index);\n }\n buffer[--index] = startIndex;\n buffer[--index] = end - bufferStart;\n buffer[--index] = start - bufferStart;\n buffer[--index] = id;\n }\n else if (size == -3 /* SpecialRecord.ContextChange */) {\n contextHash = id;\n }\n else if (size == -4 /* SpecialRecord.LookAhead */) {\n lookAhead = id;\n }\n return index;\n }\n let children = [], positions = [];\n while (cursor.pos > 0)\n takeNode(data.start || 0, data.bufferStart || 0, children, positions, -1, 0);\n let length = (_a = data.length) !== null && _a !== void 0 ? _a : (children.length ? positions[0] + children[0].length : 0);\n return new Tree(types[data.topID], children.reverse(), positions.reverse(), length);\n}\nconst nodeSizeCache = new WeakMap;\nfunction nodeSize(balanceType, node) {\n if (!balanceType.isAnonymous || node instanceof TreeBuffer || node.type != balanceType)\n return 1;\n let size = nodeSizeCache.get(node);\n if (size == null) {\n size = 1;\n for (let child of node.children) {\n if (child.type != balanceType || !(child instanceof Tree)) {\n size = 1;\n break;\n }\n size += nodeSize(balanceType, child);\n }\n nodeSizeCache.set(node, size);\n }\n return size;\n}\nfunction balanceRange(\n// The type the balanced tree's inner nodes.\nbalanceType, \n// The direct children and their positions\nchildren, positions, \n// The index range in children/positions to use\nfrom, to, \n// The start position of the nodes, relative to their parent.\nstart, \n// Length of the outer node\nlength, \n// Function to build the top node of the balanced tree\nmkTop, \n// Function to build internal nodes for the balanced tree\nmkTree) {\n let total = 0;\n for (let i = from; i < to; i++)\n total += nodeSize(balanceType, children[i]);\n let maxChild = Math.ceil((total * 1.5) / 8 /* Balance.BranchFactor */);\n let localChildren = [], localPositions = [];\n function divide(children, positions, from, to, offset) {\n for (let i = from; i < to;) {\n let groupFrom = i, groupStart = positions[i], groupSize = nodeSize(balanceType, children[i]);\n i++;\n for (; i < to; i++) {\n let nextSize = nodeSize(balanceType, children[i]);\n if (groupSize + nextSize >= maxChild)\n break;\n groupSize += nextSize;\n }\n if (i == groupFrom + 1) {\n if (groupSize > maxChild) {\n let only = children[groupFrom]; // Only trees can have a size > 1\n divide(only.children, only.positions, 0, only.children.length, positions[groupFrom] + offset);\n continue;\n }\n localChildren.push(children[groupFrom]);\n }\n else {\n let length = positions[i - 1] + children[i - 1].length - groupStart;\n localChildren.push(balanceRange(balanceType, children, positions, groupFrom, i, groupStart, length, null, mkTree));\n }\n localPositions.push(groupStart + offset - start);\n }\n }\n divide(children, positions, from, to, 0);\n return (mkTop || mkTree)(localChildren, localPositions, length);\n}\n/**\nProvides a way to associate values with pieces of trees. As long\nas that part of the tree is reused, the associated values can be\nretrieved from an updated tree.\n*/\nclass NodeWeakMap {\n constructor() {\n this.map = new WeakMap();\n }\n setBuffer(buffer, index, value) {\n let inner = this.map.get(buffer);\n if (!inner)\n this.map.set(buffer, inner = new Map);\n inner.set(index, value);\n }\n getBuffer(buffer, index) {\n let inner = this.map.get(buffer);\n return inner && inner.get(index);\n }\n /**\n Set the value for this syntax node.\n */\n set(node, value) {\n if (node instanceof BufferNode)\n this.setBuffer(node.context.buffer, node.index, value);\n else if (node instanceof TreeNode)\n this.map.set(node.tree, value);\n }\n /**\n Retrieve value for this syntax node, if it exists in the map.\n */\n get(node) {\n return node instanceof BufferNode ? this.getBuffer(node.context.buffer, node.index)\n : node instanceof TreeNode ? this.map.get(node.tree) : undefined;\n }\n /**\n Set the value for the node that a cursor currently points to.\n */\n cursorSet(cursor, value) {\n if (cursor.buffer)\n this.setBuffer(cursor.buffer.buffer, cursor.index, value);\n else\n this.map.set(cursor.tree, value);\n }\n /**\n Retrieve the value for the node that a cursor currently points\n to.\n */\n cursorGet(cursor) {\n return cursor.buffer ? this.getBuffer(cursor.buffer.buffer, cursor.index) : this.map.get(cursor.tree);\n }\n}\n\n/**\nTree fragments are used during [incremental\nparsing](#common.Parser.startParse) to track parts of old trees\nthat can be reused in a new parse. An array of fragments is used\nto track regions of an old tree whose nodes might be reused in new\nparses. Use the static\n[`applyChanges`](#common.TreeFragment^applyChanges) method to\nupdate fragments for document changes.\n*/\nclass TreeFragment {\n /**\n Construct a tree fragment. You'll usually want to use\n [`addTree`](#common.TreeFragment^addTree) and\n [`applyChanges`](#common.TreeFragment^applyChanges) instead of\n calling this directly.\n */\n constructor(\n /**\n The start of the unchanged range pointed to by this fragment.\n This refers to an offset in the _updated_ document (as opposed\n to the original tree).\n */\n from, \n /**\n The end of the unchanged range.\n */\n to, \n /**\n The tree that this fragment is based on.\n */\n tree, \n /**\n The offset between the fragment's tree and the document that\n this fragment can be used against. Add this when going from\n document to tree positions, subtract it to go from tree to\n document positions.\n */\n offset, openStart = false, openEnd = false) {\n this.from = from;\n this.to = to;\n this.tree = tree;\n this.offset = offset;\n this.open = (openStart ? 1 /* Open.Start */ : 0) | (openEnd ? 2 /* Open.End */ : 0);\n }\n /**\n Whether the start of the fragment represents the start of a\n parse, or the end of a change. (In the second case, it may not\n be safe to reuse some nodes at the start, depending on the\n parsing algorithm.)\n */\n get openStart() { return (this.open & 1 /* Open.Start */) > 0; }\n /**\n Whether the end of the fragment represents the end of a\n full-document parse, or the start of a change.\n */\n get openEnd() { return (this.open & 2 /* Open.End */) > 0; }\n /**\n Create a set of fragments from a freshly parsed tree, or update\n an existing set of fragments by replacing the ones that overlap\n with a tree with content from the new tree. When `partial` is\n true, the parse is treated as incomplete, and the resulting\n fragment has [`openEnd`](#common.TreeFragment.openEnd) set to\n true.\n */\n static addTree(tree, fragments = [], partial = false) {\n let result = [new TreeFragment(0, tree.length, tree, 0, false, partial)];\n for (let f of fragments)\n if (f.to > tree.length)\n result.push(f);\n return result;\n }\n /**\n Apply a set of edits to an array of fragments, removing or\n splitting fragments as necessary to remove edited ranges, and\n adjusting offsets for fragments that moved.\n */\n static applyChanges(fragments, changes, minGap = 128) {\n if (!changes.length)\n return fragments;\n let result = [];\n let fI = 1, nextF = fragments.length ? fragments[0] : null;\n for (let cI = 0, pos = 0, off = 0;; cI++) {\n let nextC = cI < changes.length ? changes[cI] : null;\n let nextPos = nextC ? nextC.fromA : 1e9;\n if (nextPos - pos >= minGap)\n while (nextF && nextF.from < nextPos) {\n let cut = nextF;\n if (pos >= cut.from || nextPos <= cut.to || off) {\n let fFrom = Math.max(cut.from, pos) - off, fTo = Math.min(cut.to, nextPos) - off;\n cut = fFrom >= fTo ? null : new TreeFragment(fFrom, fTo, cut.tree, cut.offset + off, cI > 0, !!nextC);\n }\n if (cut)\n result.push(cut);\n if (nextF.to > nextPos)\n break;\n nextF = fI < fragments.length ? fragments[fI++] : null;\n }\n if (!nextC)\n break;\n pos = nextC.toA;\n off = nextC.toA - nextC.toB;\n }\n return result;\n }\n}\n/**\nA superclass that parsers should extend.\n*/\nclass Parser {\n /**\n Start a parse, returning a [partial parse](#common.PartialParse)\n object. [`fragments`](#common.TreeFragment) can be passed in to\n make the parse incremental.\n \n By default, the entire input is parsed. You can pass `ranges`,\n which should be a sorted array of non-empty, non-overlapping\n ranges, to parse only those ranges. The tree returned in that\n case will start at `ranges[0].from`.\n */\n startParse(input, fragments, ranges) {\n if (typeof input == \"string\")\n input = new StringInput(input);\n ranges = !ranges ? [new Range(0, input.length)] : ranges.length ? ranges.map(r => new Range(r.from, r.to)) : [new Range(0, 0)];\n return this.createParse(input, fragments || [], ranges);\n }\n /**\n Run a full parse, returning the resulting tree.\n */\n parse(input, fragments, ranges) {\n let parse = this.startParse(input, fragments, ranges);\n for (;;) {\n let done = parse.advance();\n if (done)\n return done;\n }\n }\n}\nclass StringInput {\n constructor(string) {\n this.string = string;\n }\n get length() { return this.string.length; }\n chunk(from) { return this.string.slice(from); }\n get lineChunks() { return false; }\n read(from, to) { return this.string.slice(from, to); }\n}\n\n/**\nCreate a parse wrapper that, after the inner parse completes,\nscans its tree for mixed language regions with the `nest`\nfunction, runs the resulting [inner parses](#common.NestedParse),\nand then [mounts](#common.NodeProp^mounted) their results onto the\ntree.\n*/\nfunction parseMixed(nest) {\n return (parse, input, fragments, ranges) => new MixedParse(parse, nest, input, fragments, ranges);\n}\nclass InnerParse {\n constructor(parser, parse, overlay, target, from) {\n this.parser = parser;\n this.parse = parse;\n this.overlay = overlay;\n this.target = target;\n this.from = from;\n }\n}\nfunction checkRanges(ranges) {\n if (!ranges.length || ranges.some(r => r.from >= r.to))\n throw new RangeError(\"Invalid inner parse ranges given: \" + JSON.stringify(ranges));\n}\nclass ActiveOverlay {\n constructor(parser, predicate, mounts, index, start, target, prev) {\n this.parser = parser;\n this.predicate = predicate;\n this.mounts = mounts;\n this.index = index;\n this.start = start;\n this.target = target;\n this.prev = prev;\n this.depth = 0;\n this.ranges = [];\n }\n}\nconst stoppedInner = new NodeProp({ perNode: true });\nclass MixedParse {\n constructor(base, nest, input, fragments, ranges) {\n this.nest = nest;\n this.input = input;\n this.fragments = fragments;\n this.ranges = ranges;\n this.inner = [];\n this.innerDone = 0;\n this.baseTree = null;\n this.stoppedAt = null;\n this.baseParse = base;\n }\n advance() {\n if (this.baseParse) {\n let done = this.baseParse.advance();\n if (!done)\n return null;\n this.baseParse = null;\n this.baseTree = done;\n this.startInner();\n if (this.stoppedAt != null)\n for (let inner of this.inner)\n inner.parse.stopAt(this.stoppedAt);\n }\n if (this.innerDone == this.inner.length) {\n let result = this.baseTree;\n if (this.stoppedAt != null)\n result = new Tree(result.type, result.children, result.positions, result.length, result.propValues.concat([[stoppedInner, this.stoppedAt]]));\n return result;\n }\n let inner = this.inner[this.innerDone], done = inner.parse.advance();\n if (done) {\n this.innerDone++;\n // This is a somewhat dodgy but super helpful hack where we\n // patch up nodes created by the inner parse (and thus\n // presumably not aliased anywhere else) to hold the information\n // about the inner parse.\n let props = Object.assign(Object.create(null), inner.target.props);\n props[NodeProp.mounted.id] = new MountedTree(done, inner.overlay, inner.parser);\n inner.target.props = props;\n }\n return null;\n }\n get parsedPos() {\n if (this.baseParse)\n return 0;\n let pos = this.input.length;\n for (let i = this.innerDone; i < this.inner.length; i++) {\n if (this.inner[i].from < pos)\n pos = Math.min(pos, this.inner[i].parse.parsedPos);\n }\n return pos;\n }\n stopAt(pos) {\n this.stoppedAt = pos;\n if (this.baseParse)\n this.baseParse.stopAt(pos);\n else\n for (let i = this.innerDone; i < this.inner.length; i++)\n this.inner[i].parse.stopAt(pos);\n }\n startInner() {\n let fragmentCursor = new FragmentCursor(this.fragments);\n let overlay = null;\n let covered = null;\n let cursor = new TreeCursor(new TreeNode(this.baseTree, this.ranges[0].from, 0, null), IterMode.IncludeAnonymous | IterMode.IgnoreMounts);\n scan: for (let nest, isCovered;;) {\n let enter = true, range;\n if (this.stoppedAt != null && cursor.from >= this.stoppedAt) {\n enter = false;\n }\n else if (fragmentCursor.hasNode(cursor)) {\n if (overlay) {\n let match = overlay.mounts.find(m => m.frag.from <= cursor.from && m.frag.to >= cursor.to && m.mount.overlay);\n if (match)\n for (let r of match.mount.overlay) {\n let from = r.from + match.pos, to = r.to + match.pos;\n if (from >= cursor.from && to <= cursor.to && !overlay.ranges.some(r => r.from < to && r.to > from))\n overlay.ranges.push({ from, to });\n }\n }\n enter = false;\n }\n else if (covered && (isCovered = checkCover(covered.ranges, cursor.from, cursor.to))) {\n enter = isCovered != 2 /* Cover.Full */;\n }\n else if (!cursor.type.isAnonymous && (nest = this.nest(cursor, this.input)) &&\n (cursor.from < cursor.to || !nest.overlay)) {\n if (!cursor.tree)\n materialize(cursor);\n let oldMounts = fragmentCursor.findMounts(cursor.from, nest.parser);\n if (typeof nest.overlay == \"function\") {\n overlay = new ActiveOverlay(nest.parser, nest.overlay, oldMounts, this.inner.length, cursor.from, cursor.tree, overlay);\n }\n else {\n let ranges = punchRanges(this.ranges, nest.overlay ||\n (cursor.from < cursor.to ? [new Range(cursor.from, cursor.to)] : []));\n if (ranges.length)\n checkRanges(ranges);\n if (ranges.length || !nest.overlay)\n this.inner.push(new InnerParse(nest.parser, ranges.length ? nest.parser.startParse(this.input, enterFragments(oldMounts, ranges), ranges)\n : nest.parser.startParse(\"\"), nest.overlay ? nest.overlay.map(r => new Range(r.from - cursor.from, r.to - cursor.from)) : null, cursor.tree, ranges.length ? ranges[0].from : cursor.from));\n if (!nest.overlay)\n enter = false;\n else if (ranges.length)\n covered = { ranges, depth: 0, prev: covered };\n }\n }\n else if (overlay && (range = overlay.predicate(cursor))) {\n if (range === true)\n range = new Range(cursor.from, cursor.to);\n if (range.from < range.to)\n overlay.ranges.push(range);\n }\n if (enter && cursor.firstChild()) {\n if (overlay)\n overlay.depth++;\n if (covered)\n covered.depth++;\n }\n else {\n for (;;) {\n if (cursor.nextSibling())\n break;\n if (!cursor.parent())\n break scan;\n if (overlay && !--overlay.depth) {\n let ranges = punchRanges(this.ranges, overlay.ranges);\n if (ranges.length) {\n checkRanges(ranges);\n this.inner.splice(overlay.index, 0, new InnerParse(overlay.parser, overlay.parser.startParse(this.input, enterFragments(overlay.mounts, ranges), ranges), overlay.ranges.map(r => new Range(r.from - overlay.start, r.to - overlay.start)), overlay.target, ranges[0].from));\n }\n overlay = overlay.prev;\n }\n if (covered && !--covered.depth)\n covered = covered.prev;\n }\n }\n }\n }\n}\nfunction checkCover(covered, from, to) {\n for (let range of covered) {\n if (range.from >= to)\n break;\n if (range.to > from)\n return range.from <= from && range.to >= to ? 2 /* Cover.Full */ : 1 /* Cover.Partial */;\n }\n return 0 /* Cover.None */;\n}\n// Take a piece of buffer and convert it into a stand-alone\n// TreeBuffer.\nfunction sliceBuf(buf, startI, endI, nodes, positions, off) {\n if (startI < endI) {\n let from = buf.buffer[startI + 1];\n nodes.push(buf.slice(startI, endI, from));\n positions.push(from - off);\n }\n}\n// This function takes a node that's in a buffer, and converts it, and\n// its parent buffer nodes, into a Tree. This is again acting on the\n// assumption that the trees and buffers have been constructed by the\n// parse that was ran via the mix parser, and thus aren't shared with\n// any other code, making violations of the immutability safe.\nfunction materialize(cursor) {\n let { node } = cursor, stack = [];\n // Scan up to the nearest tree\n do {\n stack.push(cursor.index);\n cursor.parent();\n } while (!cursor.tree);\n // Find the index of the buffer in that tree\n let i = 0, base = cursor.tree, off = 0;\n for (;; i++) {\n off = base.positions[i] + cursor.from;\n if (off <= node.from && off + base.children[i].length >= node.to)\n break;\n }\n let buf = base.children[i], b = buf.buffer, newStack = [i];\n // Split a level in the buffer, putting the nodes before and after\n // the child that contains `node` into new buffers.\n function split(startI, endI, type, innerOffset, length, stackPos) {\n let targetI = stack[stackPos];\n let children = [], positions = [];\n sliceBuf(buf, startI, targetI, children, positions, innerOffset);\n let from = b[targetI + 1], to = b[targetI + 2];\n newStack.push(children.length);\n let child = stackPos\n ? split(targetI + 4, b[targetI + 3], buf.set.types[b[targetI]], from, to - from, stackPos - 1)\n : node.toTree();\n children.push(child);\n positions.push(from - innerOffset);\n sliceBuf(buf, b[targetI + 3], endI, children, positions, innerOffset);\n return new Tree(type, children, positions, length);\n }\n base.children[i] = split(0, b.length, NodeType.none, 0, buf.length, stack.length - 1);\n // Move the cursor back to the target node\n for (let index of newStack) {\n let tree = cursor.tree.children[index], pos = cursor.tree.positions[index];\n cursor.yield(new TreeNode(tree, pos + cursor.from, index, cursor._tree));\n }\n}\nclass StructureCursor {\n constructor(root, offset) {\n this.offset = offset;\n this.done = false;\n this.cursor = root.cursor(IterMode.IncludeAnonymous | IterMode.IgnoreMounts);\n }\n // Move to the first node (in pre-order) that starts at or after `pos`.\n moveTo(pos) {\n let { cursor } = this, p = pos - this.offset;\n while (!this.done && cursor.from < p) {\n if (cursor.to >= pos && cursor.enter(p, 1, IterMode.IgnoreOverlays | IterMode.ExcludeBuffers)) ;\n else if (!cursor.next(false))\n this.done = true;\n }\n }\n hasNode(cursor) {\n this.moveTo(cursor.from);\n if (!this.done && this.cursor.from + this.offset == cursor.from && this.cursor.tree) {\n for (let tree = this.cursor.tree;;) {\n if (tree == cursor.tree)\n return true;\n if (tree.children.length && tree.positions[0] == 0 && tree.children[0] instanceof Tree)\n tree = tree.children[0];\n else\n break;\n }\n }\n return false;\n }\n}\nclass FragmentCursor {\n constructor(fragments) {\n var _a;\n this.fragments = fragments;\n this.curTo = 0;\n this.fragI = 0;\n if (fragments.length) {\n let first = this.curFrag = fragments[0];\n this.curTo = (_a = first.tree.prop(stoppedInner)) !== null && _a !== void 0 ? _a : first.to;\n this.inner = new StructureCursor(first.tree, -first.offset);\n }\n else {\n this.curFrag = this.inner = null;\n }\n }\n hasNode(node) {\n while (this.curFrag && node.from >= this.curTo)\n this.nextFrag();\n return this.curFrag && this.curFrag.from <= node.from && this.curTo >= node.to && this.inner.hasNode(node);\n }\n nextFrag() {\n var _a;\n this.fragI++;\n if (this.fragI == this.fragments.length) {\n this.curFrag = this.inner = null;\n }\n else {\n let frag = this.curFrag = this.fragments[this.fragI];\n this.curTo = (_a = frag.tree.prop(stoppedInner)) !== null && _a !== void 0 ? _a : frag.to;\n this.inner = new StructureCursor(frag.tree, -frag.offset);\n }\n }\n findMounts(pos, parser) {\n var _a;\n let result = [];\n if (this.inner) {\n this.inner.cursor.moveTo(pos, 1);\n for (let pos = this.inner.cursor.node; pos; pos = pos.parent) {\n let mount = (_a = pos.tree) === null || _a === void 0 ? void 0 : _a.prop(NodeProp.mounted);\n if (mount && mount.parser == parser) {\n for (let i = this.fragI; i < this.fragments.length; i++) {\n let frag = this.fragments[i];\n if (frag.from >= pos.to)\n break;\n if (frag.tree == this.curFrag.tree)\n result.push({\n frag,\n pos: pos.from - frag.offset,\n mount\n });\n }\n }\n }\n }\n return result;\n }\n}\nfunction punchRanges(outer, ranges) {\n let copy = null, current = ranges;\n for (let i = 1, j = 0; i < outer.length; i++) {\n let gapFrom = outer[i - 1].to, gapTo = outer[i].from;\n for (; j < current.length; j++) {\n let r = current[j];\n if (r.from >= gapTo)\n break;\n if (r.to <= gapFrom)\n continue;\n if (!copy)\n current = copy = ranges.slice();\n if (r.from < gapFrom) {\n copy[j] = new Range(r.from, gapFrom);\n if (r.to > gapTo)\n copy.splice(j + 1, 0, new Range(gapTo, r.to));\n }\n else if (r.to > gapTo) {\n copy[j--] = new Range(gapTo, r.to);\n }\n else {\n copy.splice(j--, 1);\n }\n }\n }\n return current;\n}\nfunction findCoverChanges(a, b, from, to) {\n let iA = 0, iB = 0, inA = false, inB = false, pos = -1e9;\n let result = [];\n for (;;) {\n let nextA = iA == a.length ? 1e9 : inA ? a[iA].to : a[iA].from;\n let nextB = iB == b.length ? 1e9 : inB ? b[iB].to : b[iB].from;\n if (inA != inB) {\n let start = Math.max(pos, from), end = Math.min(nextA, nextB, to);\n if (start < end)\n result.push(new Range(start, end));\n }\n pos = Math.min(nextA, nextB);\n if (pos == 1e9)\n break;\n if (nextA == pos) {\n if (!inA)\n inA = true;\n else {\n inA = false;\n iA++;\n }\n }\n if (nextB == pos) {\n if (!inB)\n inB = true;\n else {\n inB = false;\n iB++;\n }\n }\n }\n return result;\n}\n// Given a number of fragments for the outer tree, and a set of ranges\n// to parse, find fragments for inner trees mounted around those\n// ranges, if any.\nfunction enterFragments(mounts, ranges) {\n let result = [];\n for (let { pos, mount, frag } of mounts) {\n let startPos = pos + (mount.overlay ? mount.overlay[0].from : 0), endPos = startPos + mount.tree.length;\n let from = Math.max(frag.from, startPos), to = Math.min(frag.to, endPos);\n if (mount.overlay) {\n let overlay = mount.overlay.map(r => new Range(r.from + pos, r.to + pos));\n let changes = findCoverChanges(ranges, overlay, from, to);\n for (let i = 0, pos = from;; i++) {\n let last = i == changes.length, end = last ? to : changes[i].from;\n if (end > pos)\n result.push(new TreeFragment(pos, end, mount.tree, -startPos, frag.from >= pos || frag.openStart, frag.to <= end || frag.openEnd));\n if (last)\n break;\n pos = changes[i].to;\n }\n }\n else {\n result.push(new TreeFragment(from, to, mount.tree, -startPos, frag.from >= startPos || frag.openStart, frag.to <= endPos || frag.openEnd));\n }\n }\n return result;\n}\n\nexport { DefaultBufferLength, IterMode, MountedTree, NodeProp, NodeSet, NodeType, NodeWeakMap, Parser, Tree, TreeBuffer, TreeCursor, TreeFragment, parseMixed };\n","import { NodeProp } from '@lezer/common';\n\nlet nextTagID = 0;\n/**\nHighlighting tags are markers that denote a highlighting category.\nThey are [associated](#highlight.styleTags) with parts of a syntax\ntree by a language mode, and then mapped to an actual CSS style by\na [highlighter](#highlight.Highlighter).\n\nBecause syntax tree node types and highlight styles have to be\nable to talk the same language, CodeMirror uses a mostly _closed_\n[vocabulary](#highlight.tags) of syntax tags (as opposed to\ntraditional open string-based systems, which make it hard for\nhighlighting themes to cover all the tokens produced by the\nvarious languages).\n\nIt _is_ possible to [define](#highlight.Tag^define) your own\nhighlighting tags for system-internal use (where you control both\nthe language package and the highlighter), but such tags will not\nbe picked up by regular highlighters (though you can derive them\nfrom standard tags to allow highlighters to fall back to those).\n*/\nclass Tag {\n /**\n @internal\n */\n constructor(\n /**\n The set of this tag and all its parent tags, starting with\n this one itself and sorted in order of decreasing specificity.\n */\n set, \n /**\n The base unmodified tag that this one is based on, if it's\n modified @internal\n */\n base, \n /**\n The modifiers applied to this.base @internal\n */\n modified) {\n this.set = set;\n this.base = base;\n this.modified = modified;\n /**\n @internal\n */\n this.id = nextTagID++;\n }\n /**\n Define a new tag. If `parent` is given, the tag is treated as a\n sub-tag of that parent, and\n [highlighters](#highlight.tagHighlighter) that don't mention\n this tag will try to fall back to the parent tag (or grandparent\n tag, etc).\n */\n static define(parent) {\n if (parent === null || parent === void 0 ? void 0 : parent.base)\n throw new Error(\"Can not derive from a modified tag\");\n let tag = new Tag([], null, []);\n tag.set.push(tag);\n if (parent)\n for (let t of parent.set)\n tag.set.push(t);\n return tag;\n }\n /**\n Define a tag _modifier_, which is a function that, given a tag,\n will return a tag that is a subtag of the original. Applying the\n same modifier to a twice tag will return the same value (`m1(t1)\n == m1(t1)`) and applying multiple modifiers will, regardless or\n order, produce the same tag (`m1(m2(t1)) == m2(m1(t1))`).\n \n When multiple modifiers are applied to a given base tag, each\n smaller set of modifiers is registered as a parent, so that for\n example `m1(m2(m3(t1)))` is a subtype of `m1(m2(t1))`,\n `m1(m3(t1)`, and so on.\n */\n static defineModifier() {\n let mod = new Modifier;\n return (tag) => {\n if (tag.modified.indexOf(mod) > -1)\n return tag;\n return Modifier.get(tag.base || tag, tag.modified.concat(mod).sort((a, b) => a.id - b.id));\n };\n }\n}\nlet nextModifierID = 0;\nclass Modifier {\n constructor() {\n this.instances = [];\n this.id = nextModifierID++;\n }\n static get(base, mods) {\n if (!mods.length)\n return base;\n let exists = mods[0].instances.find(t => t.base == base && sameArray(mods, t.modified));\n if (exists)\n return exists;\n let set = [], tag = new Tag(set, base, mods);\n for (let m of mods)\n m.instances.push(tag);\n let configs = powerSet(mods);\n for (let parent of base.set)\n if (!parent.modified.length)\n for (let config of configs)\n set.push(Modifier.get(parent, config));\n return tag;\n }\n}\nfunction sameArray(a, b) {\n return a.length == b.length && a.every((x, i) => x == b[i]);\n}\nfunction powerSet(array) {\n let sets = [[]];\n for (let i = 0; i < array.length; i++) {\n for (let j = 0, e = sets.length; j < e; j++) {\n sets.push(sets[j].concat(array[i]));\n }\n }\n return sets.sort((a, b) => b.length - a.length);\n}\n/**\nThis function is used to add a set of tags to a language syntax\nvia [`NodeSet.extend`](#common.NodeSet.extend) or\n[`LRParser.configure`](#lr.LRParser.configure).\n\nThe argument object maps node selectors to [highlighting\ntags](#highlight.Tag) or arrays of tags.\n\nNode selectors may hold one or more (space-separated) node paths.\nSuch a path can be a [node name](#common.NodeType.name), or\nmultiple node names (or `*` wildcards) separated by slash\ncharacters, as in `\"Block/Declaration/VariableName\"`. Such a path\nmatches the final node but only if its direct parent nodes are the\nother nodes mentioned. A `*` in such a path matches any parent,\nbut only a single level—wildcards that match multiple parents\naren't supported, both for efficiency reasons and because Lezer\ntrees make it rather hard to reason about what they would match.)\n\nA path can be ended with `/...` to indicate that the tag assigned\nto the node should also apply to all child nodes, even if they\nmatch their own style (by default, only the innermost style is\nused).\n\nWhen a path ends in `!`, as in `Attribute!`, no further matching\nhappens for the node's child nodes, and the entire node gets the\ngiven style.\n\nIn this notation, node names that contain `/`, `!`, `*`, or `...`\nmust be quoted as JSON strings.\n\nFor example:\n\n```javascript\nparser.withProps(\n styleTags({\n // Style Number and BigNumber nodes\n \"Number BigNumber\": tags.number,\n // Style Escape nodes whose parent is String\n \"String/Escape\": tags.escape,\n // Style anything inside Attributes nodes\n \"Attributes!\": tags.meta,\n // Add a style to all content inside Italic nodes\n \"Italic/...\": tags.emphasis,\n // Style InvalidString nodes as both `string` and `invalid`\n \"InvalidString\": [tags.string, tags.invalid],\n // Style the node named \"/\" as punctuation\n '\"/\"': tags.punctuation\n })\n)\n```\n*/\nfunction styleTags(spec) {\n let byName = Object.create(null);\n for (let prop in spec) {\n let tags = spec[prop];\n if (!Array.isArray(tags))\n tags = [tags];\n for (let part of prop.split(\" \"))\n if (part) {\n let pieces = [], mode = 2 /* Mode.Normal */, rest = part;\n for (let pos = 0;;) {\n if (rest == \"...\" && pos > 0 && pos + 3 == part.length) {\n mode = 1 /* Mode.Inherit */;\n break;\n }\n let m = /^\"(?:[^\"\\\\]|\\\\.)*?\"|[^\\/!]+/.exec(rest);\n if (!m)\n throw new RangeError(\"Invalid path: \" + part);\n pieces.push(m[0] == \"*\" ? \"\" : m[0][0] == '\"' ? JSON.parse(m[0]) : m[0]);\n pos += m[0].length;\n if (pos == part.length)\n break;\n let next = part[pos++];\n if (pos == part.length && next == \"!\") {\n mode = 0 /* Mode.Opaque */;\n break;\n }\n if (next != \"/\")\n throw new RangeError(\"Invalid path: \" + part);\n rest = part.slice(pos);\n }\n let last = pieces.length - 1, inner = pieces[last];\n if (!inner)\n throw new RangeError(\"Invalid path: \" + part);\n let rule = new Rule(tags, mode, last > 0 ? pieces.slice(0, last) : null);\n byName[inner] = rule.sort(byName[inner]);\n }\n }\n return ruleNodeProp.add(byName);\n}\nconst ruleNodeProp = new NodeProp();\nclass Rule {\n constructor(tags, mode, context, next) {\n this.tags = tags;\n this.mode = mode;\n this.context = context;\n this.next = next;\n }\n get opaque() { return this.mode == 0 /* Mode.Opaque */; }\n get inherit() { return this.mode == 1 /* Mode.Inherit */; }\n sort(other) {\n if (!other || other.depth < this.depth) {\n this.next = other;\n return this;\n }\n other.next = this.sort(other.next);\n return other;\n }\n get depth() { return this.context ? this.context.length : 0; }\n}\nRule.empty = new Rule([], 2 /* Mode.Normal */, null);\n/**\nDefine a [highlighter](#highlight.Highlighter) from an array of\ntag/class pairs. Classes associated with more specific tags will\ntake precedence.\n*/\nfunction tagHighlighter(tags, options) {\n let map = Object.create(null);\n for (let style of tags) {\n if (!Array.isArray(style.tag))\n map[style.tag.id] = style.class;\n else\n for (let tag of style.tag)\n map[tag.id] = style.class;\n }\n let { scope, all = null } = options || {};\n return {\n style: (tags) => {\n let cls = all;\n for (let tag of tags) {\n for (let sub of tag.set) {\n let tagClass = map[sub.id];\n if (tagClass) {\n cls = cls ? cls + \" \" + tagClass : tagClass;\n break;\n }\n }\n }\n return cls;\n },\n scope\n };\n}\nfunction highlightTags(highlighters, tags) {\n let result = null;\n for (let highlighter of highlighters) {\n let value = highlighter.style(tags);\n if (value)\n result = result ? result + \" \" + value : value;\n }\n return result;\n}\n/**\nHighlight the given [tree](#common.Tree) with the given\n[highlighter](#highlight.Highlighter). Often, the higher-level\n[`highlightCode`](#highlight.highlightCode) function is easier to\nuse.\n*/\nfunction highlightTree(tree, highlighter, \n/**\nAssign styling to a region of the text. Will be called, in order\nof position, for any ranges where more than zero classes apply.\n`classes` is a space separated string of CSS classes.\n*/\nputStyle, \n/**\nThe start of the range to highlight.\n*/\nfrom = 0, \n/**\nThe end of the range.\n*/\nto = tree.length) {\n let builder = new HighlightBuilder(from, Array.isArray(highlighter) ? highlighter : [highlighter], putStyle);\n builder.highlightRange(tree.cursor(), from, to, \"\", builder.highlighters);\n builder.flush(to);\n}\n/**\nHighlight the given tree with the given highlighter, calling\n`putText` for every piece of text, either with a set of classes or\nwith the empty string when unstyled, and `putBreak` for every line\nbreak.\n*/\nfunction highlightCode(code, tree, highlighter, putText, putBreak, from = 0, to = code.length) {\n let pos = from;\n function writeTo(p, classes) {\n if (p <= pos)\n return;\n for (let text = code.slice(pos, p), i = 0;;) {\n let nextBreak = text.indexOf(\"\\n\", i);\n let upto = nextBreak < 0 ? text.length : nextBreak;\n if (upto > i)\n putText(text.slice(i, upto), classes);\n if (nextBreak < 0)\n break;\n putBreak();\n i = nextBreak + 1;\n }\n pos = p;\n }\n highlightTree(tree, highlighter, (from, to, classes) => {\n writeTo(from, \"\");\n writeTo(to, classes);\n }, from, to);\n writeTo(to, \"\");\n}\nclass HighlightBuilder {\n constructor(at, highlighters, span) {\n this.at = at;\n this.highlighters = highlighters;\n this.span = span;\n this.class = \"\";\n }\n startSpan(at, cls) {\n if (cls != this.class) {\n this.flush(at);\n if (at > this.at)\n this.at = at;\n this.class = cls;\n }\n }\n flush(to) {\n if (to > this.at && this.class)\n this.span(this.at, to, this.class);\n }\n highlightRange(cursor, from, to, inheritedClass, highlighters) {\n let { type, from: start, to: end } = cursor;\n if (start >= to || end <= from)\n return;\n if (type.isTop)\n highlighters = this.highlighters.filter(h => !h.scope || h.scope(type));\n let cls = inheritedClass;\n let rule = getStyleTags(cursor) || Rule.empty;\n let tagCls = highlightTags(highlighters, rule.tags);\n if (tagCls) {\n if (cls)\n cls += \" \";\n cls += tagCls;\n if (rule.mode == 1 /* Mode.Inherit */)\n inheritedClass += (inheritedClass ? \" \" : \"\") + tagCls;\n }\n this.startSpan(Math.max(from, start), cls);\n if (rule.opaque)\n return;\n let mounted = cursor.tree && cursor.tree.prop(NodeProp.mounted);\n if (mounted && mounted.overlay) {\n let inner = cursor.node.enter(mounted.overlay[0].from + start, 1);\n let innerHighlighters = this.highlighters.filter(h => !h.scope || h.scope(mounted.tree.type));\n let hasChild = cursor.firstChild();\n for (let i = 0, pos = start;; i++) {\n let next = i < mounted.overlay.length ? mounted.overlay[i] : null;\n let nextPos = next ? next.from + start : end;\n let rangeFrom = Math.max(from, pos), rangeTo = Math.min(to, nextPos);\n if (rangeFrom < rangeTo && hasChild) {\n while (cursor.from < rangeTo) {\n this.highlightRange(cursor, rangeFrom, rangeTo, inheritedClass, highlighters);\n this.startSpan(Math.min(rangeTo, cursor.to), cls);\n if (cursor.to >= nextPos || !cursor.nextSibling())\n break;\n }\n }\n if (!next || nextPos > to)\n break;\n pos = next.to + start;\n if (pos > from) {\n this.highlightRange(inner.cursor(), Math.max(from, next.from + start), Math.min(to, pos), \"\", innerHighlighters);\n this.startSpan(Math.min(to, pos), cls);\n }\n }\n if (hasChild)\n cursor.parent();\n }\n else if (cursor.firstChild()) {\n if (mounted)\n inheritedClass = \"\";\n do {\n if (cursor.to <= from)\n continue;\n if (cursor.from >= to)\n break;\n this.highlightRange(cursor, from, to, inheritedClass, highlighters);\n this.startSpan(Math.min(to, cursor.to), cls);\n } while (cursor.nextSibling());\n cursor.parent();\n }\n }\n}\n/**\nMatch a syntax node's [highlight rules](#highlight.styleTags). If\nthere's a match, return its set of tags, and whether it is\nopaque (uses a `!`) or applies to all child nodes (`/...`).\n*/\nfunction getStyleTags(node) {\n let rule = node.type.prop(ruleNodeProp);\n while (rule && rule.context && !node.matchContext(rule.context))\n rule = rule.next;\n return rule || null;\n}\nconst t = Tag.define;\nconst comment = t(), name = t(), typeName = t(name), propertyName = t(name), literal = t(), string = t(literal), number = t(literal), content = t(), heading = t(content), keyword = t(), operator = t(), punctuation = t(), bracket = t(punctuation), meta = t();\n/**\nThe default set of highlighting [tags](#highlight.Tag).\n\nThis collection is heavily biased towards programming languages,\nand necessarily incomplete. A full ontology of syntactic\nconstructs would fill a stack of books, and be impractical to\nwrite themes for. So try to make do with this set. If all else\nfails, [open an\nissue](https://github.com/codemirror/codemirror.next) to propose a\nnew tag, or [define](#highlight.Tag^define) a local custom tag for\nyour use case.\n\nNote that it is not obligatory to always attach the most specific\ntag possible to an element—if your grammar can't easily\ndistinguish a certain type of element (such as a local variable),\nit is okay to style it as its more general variant (a variable).\n\nFor tags that extend some parent tag, the documentation links to\nthe parent.\n*/\nconst tags = {\n /**\n A comment.\n */\n comment,\n /**\n A line [comment](#highlight.tags.comment).\n */\n lineComment: t(comment),\n /**\n A block [comment](#highlight.tags.comment).\n */\n blockComment: t(comment),\n /**\n A documentation [comment](#highlight.tags.comment).\n */\n docComment: t(comment),\n /**\n Any kind of identifier.\n */\n name,\n /**\n The [name](#highlight.tags.name) of a variable.\n */\n variableName: t(name),\n /**\n A type [name](#highlight.tags.name).\n */\n typeName: typeName,\n /**\n A tag name (subtag of [`typeName`](#highlight.tags.typeName)).\n */\n tagName: t(typeName),\n /**\n A property or field [name](#highlight.tags.name).\n */\n propertyName: propertyName,\n /**\n An attribute name (subtag of [`propertyName`](#highlight.tags.propertyName)).\n */\n attributeName: t(propertyName),\n /**\n The [name](#highlight.tags.name) of a class.\n */\n className: t(name),\n /**\n A label [name](#highlight.tags.name).\n */\n labelName: t(name),\n /**\n A namespace [name](#highlight.tags.name).\n */\n namespace: t(name),\n /**\n The [name](#highlight.tags.name) of a macro.\n */\n macroName: t(name),\n /**\n A literal value.\n */\n literal,\n /**\n A string [literal](#highlight.tags.literal).\n */\n string,\n /**\n A documentation [string](#highlight.tags.string).\n */\n docString: t(string),\n /**\n A character literal (subtag of [string](#highlight.tags.string)).\n */\n character: t(string),\n /**\n An attribute value (subtag of [string](#highlight.tags.string)).\n */\n attributeValue: t(string),\n /**\n A number [literal](#highlight.tags.literal).\n */\n number,\n /**\n An integer [number](#highlight.tags.number) literal.\n */\n integer: t(number),\n /**\n A floating-point [number](#highlight.tags.number) literal.\n */\n float: t(number),\n /**\n A boolean [literal](#highlight.tags.literal).\n */\n bool: t(literal),\n /**\n Regular expression [literal](#highlight.tags.literal).\n */\n regexp: t(literal),\n /**\n An escape [literal](#highlight.tags.literal), for example a\n backslash escape in a string.\n */\n escape: t(literal),\n /**\n A color [literal](#highlight.tags.literal).\n */\n color: t(literal),\n /**\n A URL [literal](#highlight.tags.literal).\n */\n url: t(literal),\n /**\n A language keyword.\n */\n keyword,\n /**\n The [keyword](#highlight.tags.keyword) for the self or this\n object.\n */\n self: t(keyword),\n /**\n The [keyword](#highlight.tags.keyword) for null.\n */\n null: t(keyword),\n /**\n A [keyword](#highlight.tags.keyword) denoting some atomic value.\n */\n atom: t(keyword),\n /**\n A [keyword](#highlight.tags.keyword) that represents a unit.\n */\n unit: t(keyword),\n /**\n A modifier [keyword](#highlight.tags.keyword).\n */\n modifier: t(keyword),\n /**\n A [keyword](#highlight.tags.keyword) that acts as an operator.\n */\n operatorKeyword: t(keyword),\n /**\n A control-flow related [keyword](#highlight.tags.keyword).\n */\n controlKeyword: t(keyword),\n /**\n A [keyword](#highlight.tags.keyword) that defines something.\n */\n definitionKeyword: t(keyword),\n /**\n A [keyword](#highlight.tags.keyword) related to defining or\n interfacing with modules.\n */\n moduleKeyword: t(keyword),\n /**\n An operator.\n */\n operator,\n /**\n An [operator](#highlight.tags.operator) that dereferences something.\n */\n derefOperator: t(operator),\n /**\n Arithmetic-related [operator](#highlight.tags.operator).\n */\n arithmeticOperator: t(operator),\n /**\n Logical [operator](#highlight.tags.operator).\n */\n logicOperator: t(operator),\n /**\n Bit [operator](#highlight.tags.operator).\n */\n bitwiseOperator: t(operator),\n /**\n Comparison [operator](#highlight.tags.operator).\n */\n compareOperator: t(operator),\n /**\n [Operator](#highlight.tags.operator) that updates its operand.\n */\n updateOperator: t(operator),\n /**\n [Operator](#highlight.tags.operator) that defines something.\n */\n definitionOperator: t(operator),\n /**\n Type-related [operator](#highlight.tags.operator).\n */\n typeOperator: t(operator),\n /**\n Control-flow [operator](#highlight.tags.operator).\n */\n controlOperator: t(operator),\n /**\n Program or markup punctuation.\n */\n punctuation,\n /**\n [Punctuation](#highlight.tags.punctuation) that separates\n things.\n */\n separator: t(punctuation),\n /**\n Bracket-style [punctuation](#highlight.tags.punctuation).\n */\n bracket,\n /**\n Angle [brackets](#highlight.tags.bracket) (usually `<` and `>`\n tokens).\n */\n angleBracket: t(bracket),\n /**\n Square [brackets](#highlight.tags.bracket) (usually `[` and `]`\n tokens).\n */\n squareBracket: t(bracket),\n /**\n Parentheses (usually `(` and `)` tokens). Subtag of\n [bracket](#highlight.tags.bracket).\n */\n paren: t(bracket),\n /**\n Braces (usually `{` and `}` tokens). Subtag of\n [bracket](#highlight.tags.bracket).\n */\n brace: t(bracket),\n /**\n Content, for example plain text in XML or markup documents.\n */\n content,\n /**\n [Content](#highlight.tags.content) that represents a heading.\n */\n heading,\n /**\n A level 1 [heading](#highlight.tags.heading).\n */\n heading1: t(heading),\n /**\n A level 2 [heading](#highlight.tags.heading).\n */\n heading2: t(heading),\n /**\n A level 3 [heading](#highlight.tags.heading).\n */\n heading3: t(heading),\n /**\n A level 4 [heading](#highlight.tags.heading).\n */\n heading4: t(heading),\n /**\n A level 5 [heading](#highlight.tags.heading).\n */\n heading5: t(heading),\n /**\n A level 6 [heading](#highlight.tags.heading).\n */\n heading6: t(heading),\n /**\n A prose separator (such as a horizontal rule).\n */\n contentSeparator: t(content),\n /**\n [Content](#highlight.tags.content) that represents a list.\n */\n list: t(content),\n /**\n [Content](#highlight.tags.content) that represents a quote.\n */\n quote: t(content),\n /**\n [Content](#highlight.tags.content) that is emphasized.\n */\n emphasis: t(content),\n /**\n [Content](#highlight.tags.content) that is styled strong.\n */\n strong: t(content),\n /**\n [Content](#highlight.tags.content) that is part of a link.\n */\n link: t(content),\n /**\n [Content](#highlight.tags.content) that is styled as code or\n monospace.\n */\n monospace: t(content),\n /**\n [Content](#highlight.tags.content) that has a strike-through\n style.\n */\n strikethrough: t(content),\n /**\n Inserted text in a change-tracking format.\n */\n inserted: t(),\n /**\n Deleted text.\n */\n deleted: t(),\n /**\n Changed text.\n */\n changed: t(),\n /**\n An invalid or unsyntactic element.\n */\n invalid: t(),\n /**\n Metadata or meta-instruction.\n */\n meta,\n /**\n [Metadata](#highlight.tags.meta) that applies to the entire\n document.\n */\n documentMeta: t(meta),\n /**\n [Metadata](#highlight.tags.meta) that annotates or adds\n attributes to a given syntactic element.\n */\n annotation: t(meta),\n /**\n Processing instruction or preprocessor directive. Subtag of\n [meta](#highlight.tags.meta).\n */\n processingInstruction: t(meta),\n /**\n [Modifier](#highlight.Tag^defineModifier) that indicates that a\n given element is being defined. Expected to be used with the\n various [name](#highlight.tags.name) tags.\n */\n definition: Tag.defineModifier(),\n /**\n [Modifier](#highlight.Tag^defineModifier) that indicates that\n something is constant. Mostly expected to be used with\n [variable names](#highlight.tags.variableName).\n */\n constant: Tag.defineModifier(),\n /**\n [Modifier](#highlight.Tag^defineModifier) used to indicate that\n a [variable](#highlight.tags.variableName) or [property\n name](#highlight.tags.propertyName) is being called or defined\n as a function.\n */\n function: Tag.defineModifier(),\n /**\n [Modifier](#highlight.Tag^defineModifier) that can be applied to\n [names](#highlight.tags.name) to indicate that they belong to\n the language's standard environment.\n */\n standard: Tag.defineModifier(),\n /**\n [Modifier](#highlight.Tag^defineModifier) that indicates a given\n [names](#highlight.tags.name) is local to some scope.\n */\n local: Tag.defineModifier(),\n /**\n A generic variant [modifier](#highlight.Tag^defineModifier) that\n can be used to tag language-specific alternative variants of\n some common tag. It is recommended for themes to define special\n forms of at least the [string](#highlight.tags.string) and\n [variable name](#highlight.tags.variableName) tags, since those\n come up a lot.\n */\n special: Tag.defineModifier()\n};\n/**\nThis is a highlighter that adds stable, predictable classes to\ntokens, for styling with external CSS.\n\nThe following tags are mapped to their name prefixed with `\"tok-\"`\n(for example `\"tok-comment\"`):\n\n* [`link`](#highlight.tags.link)\n* [`heading`](#highlight.tags.heading)\n* [`emphasis`](#highlight.tags.emphasis)\n* [`strong`](#highlight.tags.strong)\n* [`keyword`](#highlight.tags.keyword)\n* [`atom`](#highlight.tags.atom)\n* [`bool`](#highlight.tags.bool)\n* [`url`](#highlight.tags.url)\n* [`labelName`](#highlight.tags.labelName)\n* [`inserted`](#highlight.tags.inserted)\n* [`deleted`](#highlight.tags.deleted)\n* [`literal`](#highlight.tags.literal)\n* [`string`](#highlight.tags.string)\n* [`number`](#highlight.tags.number)\n* [`variableName`](#highlight.tags.variableName)\n* [`typeName`](#highlight.tags.typeName)\n* [`namespace`](#highlight.tags.namespace)\n* [`className`](#highlight.tags.className)\n* [`macroName`](#highlight.tags.macroName)\n* [`propertyName`](#highlight.tags.propertyName)\n* [`operator`](#highlight.tags.operator)\n* [`comment`](#highlight.tags.comment)\n* [`meta`](#highlight.tags.meta)\n* [`punctuation`](#highlight.tags.punctuation)\n* [`invalid`](#highlight.tags.invalid)\n\nIn addition, these mappings are provided:\n\n* [`regexp`](#highlight.tags.regexp),\n [`escape`](#highlight.tags.escape), and\n [`special`](#highlight.tags.special)[`(string)`](#highlight.tags.string)\n are mapped to `\"tok-string2\"`\n* [`special`](#highlight.tags.special)[`(variableName)`](#highlight.tags.variableName)\n to `\"tok-variableName2\"`\n* [`local`](#highlight.tags.local)[`(variableName)`](#highlight.tags.variableName)\n to `\"tok-variableName tok-local\"`\n* [`definition`](#highlight.tags.definition)[`(variableName)`](#highlight.tags.variableName)\n to `\"tok-variableName tok-definition\"`\n* [`definition`](#highlight.tags.definition)[`(propertyName)`](#highlight.tags.propertyName)\n to `\"tok-propertyName tok-definition\"`\n*/\nconst classHighlighter = tagHighlighter([\n { tag: tags.link, class: \"tok-link\" },\n { tag: tags.heading, class: \"tok-heading\" },\n { tag: tags.emphasis, class: \"tok-emphasis\" },\n { tag: tags.strong, class: \"tok-strong\" },\n { tag: tags.keyword, class: \"tok-keyword\" },\n { tag: tags.atom, class: \"tok-atom\" },\n { tag: tags.bool, class: \"tok-bool\" },\n { tag: tags.url, class: \"tok-url\" },\n { tag: tags.labelName, class: \"tok-labelName\" },\n { tag: tags.inserted, class: \"tok-inserted\" },\n { tag: tags.deleted, class: \"tok-deleted\" },\n { tag: tags.literal, class: \"tok-literal\" },\n { tag: tags.string, class: \"tok-string\" },\n { tag: tags.number, class: \"tok-number\" },\n { tag: [tags.regexp, tags.escape, tags.special(tags.string)], class: \"tok-string2\" },\n { tag: tags.variableName, class: \"tok-variableName\" },\n { tag: tags.local(tags.variableName), class: \"tok-variableName tok-local\" },\n { tag: tags.definition(tags.variableName), class: \"tok-variableName tok-definition\" },\n { tag: tags.special(tags.variableName), class: \"tok-variableName2\" },\n { tag: tags.definition(tags.propertyName), class: \"tok-propertyName tok-definition\" },\n { tag: tags.typeName, class: \"tok-typeName\" },\n { tag: tags.namespace, class: \"tok-namespace\" },\n { tag: tags.className, class: \"tok-className\" },\n { tag: tags.macroName, class: \"tok-macroName\" },\n { tag: tags.propertyName, class: \"tok-propertyName\" },\n { tag: tags.operator, class: \"tok-operator\" },\n { tag: tags.comment, class: \"tok-comment\" },\n { tag: tags.meta, class: \"tok-meta\" },\n { tag: tags.invalid, class: \"tok-invalid\" },\n { tag: tags.punctuation, class: \"tok-punctuation\" }\n]);\n\nexport { Tag, classHighlighter, getStyleTags, highlightCode, highlightTree, styleTags, tagHighlighter, tags };\n","import { Parser, NodeProp, NodeSet, NodeType, DefaultBufferLength, Tree, IterMode } from '@lezer/common';\n\n/**\nA parse stack. These are used internally by the parser to track\nparsing progress. They also provide some properties and methods\nthat external code such as a tokenizer can use to get information\nabout the parse state.\n*/\nclass Stack {\n /**\n @internal\n */\n constructor(\n /**\n The parse that this stack is part of @internal\n */\n p, \n /**\n Holds state, input pos, buffer index triplets for all but the\n top state @internal\n */\n stack, \n /**\n The current parse state @internal\n */\n state, \n // The position at which the next reduce should take place. This\n // can be less than `this.pos` when skipped expressions have been\n // added to the stack (which should be moved outside of the next\n // reduction)\n /**\n @internal\n */\n reducePos, \n /**\n The input position up to which this stack has parsed.\n */\n pos, \n /**\n The dynamic score of the stack, including dynamic precedence\n and error-recovery penalties\n @internal\n */\n score, \n // The output buffer. Holds (type, start, end, size) quads\n // representing nodes created by the parser, where `size` is\n // amount of buffer array entries covered by this node.\n /**\n @internal\n */\n buffer, \n // The base offset of the buffer. When stacks are split, the split\n // instance shared the buffer history with its parent up to\n // `bufferBase`, which is the absolute offset (including the\n // offset of previous splits) into the buffer at which this stack\n // starts writing.\n /**\n @internal\n */\n bufferBase, \n /**\n @internal\n */\n curContext, \n /**\n @internal\n */\n lookAhead = 0, \n // A parent stack from which this was split off, if any. This is\n // set up so that it always points to a stack that has some\n // additional buffer content, never to a stack with an equal\n // `bufferBase`.\n /**\n @internal\n */\n parent) {\n this.p = p;\n this.stack = stack;\n this.state = state;\n this.reducePos = reducePos;\n this.pos = pos;\n this.score = score;\n this.buffer = buffer;\n this.bufferBase = bufferBase;\n this.curContext = curContext;\n this.lookAhead = lookAhead;\n this.parent = parent;\n }\n /**\n @internal\n */\n toString() {\n return `[${this.stack.filter((_, i) => i % 3 == 0).concat(this.state)}]@${this.pos}${this.score ? \"!\" + this.score : \"\"}`;\n }\n // Start an empty stack\n /**\n @internal\n */\n static start(p, state, pos = 0) {\n let cx = p.parser.context;\n return new Stack(p, [], state, pos, pos, 0, [], 0, cx ? new StackContext(cx, cx.start) : null, 0, null);\n }\n /**\n The stack's current [context](#lr.ContextTracker) value, if\n any. Its type will depend on the context tracker's type\n parameter, or it will be `null` if there is no context\n tracker.\n */\n get context() { return this.curContext ? this.curContext.context : null; }\n // Push a state onto the stack, tracking its start position as well\n // as the buffer base at that point.\n /**\n @internal\n */\n pushState(state, start) {\n this.stack.push(this.state, start, this.bufferBase + this.buffer.length);\n this.state = state;\n }\n // Apply a reduce action\n /**\n @internal\n */\n reduce(action) {\n var _a;\n let depth = action >> 19 /* Action.ReduceDepthShift */, type = action & 65535 /* Action.ValueMask */;\n let { parser } = this.p;\n let dPrec = parser.dynamicPrecedence(type);\n if (dPrec)\n this.score += dPrec;\n if (depth == 0) {\n this.pushState(parser.getGoto(this.state, type, true), this.reducePos);\n // Zero-depth reductions are a special case—they add stuff to\n // the stack without popping anything off.\n if (type < parser.minRepeatTerm)\n this.storeNode(type, this.reducePos, this.reducePos, 4, true);\n this.reduceContext(type, this.reducePos);\n return;\n }\n // Find the base index into `this.stack`, content after which will\n // be dropped. Note that with `StayFlag` reductions we need to\n // consume two extra frames (the dummy parent node for the skipped\n // expression and the state that we'll be staying in, which should\n // be moved to `this.state`).\n let base = this.stack.length - ((depth - 1) * 3) - (action & 262144 /* Action.StayFlag */ ? 6 : 0);\n let start = base ? this.stack[base - 2] : this.p.ranges[0].from, size = this.reducePos - start;\n // This is a kludge to try and detect overly deep left-associative\n // trees, which will not increase the parse stack depth and thus\n // won't be caught by the regular stack-depth limit check.\n if (size >= 2000 /* Recover.MinBigReduction */ && !((_a = this.p.parser.nodeSet.types[type]) === null || _a === void 0 ? void 0 : _a.isAnonymous)) {\n if (start == this.p.lastBigReductionStart) {\n this.p.bigReductionCount++;\n this.p.lastBigReductionSize = size;\n }\n else if (this.p.lastBigReductionSize < size) {\n this.p.bigReductionCount = 1;\n this.p.lastBigReductionStart = start;\n this.p.lastBigReductionSize = size;\n }\n }\n let bufferBase = base ? this.stack[base - 1] : 0, count = this.bufferBase + this.buffer.length - bufferBase;\n // Store normal terms or `R -> R R` repeat reductions\n if (type < parser.minRepeatTerm || (action & 131072 /* Action.RepeatFlag */)) {\n let pos = parser.stateFlag(this.state, 1 /* StateFlag.Skipped */) ? this.pos : this.reducePos;\n this.storeNode(type, start, pos, count + 4, true);\n }\n if (action & 262144 /* Action.StayFlag */) {\n this.state = this.stack[base];\n }\n else {\n let baseStateID = this.stack[base - 3];\n this.state = parser.getGoto(baseStateID, type, true);\n }\n while (this.stack.length > base)\n this.stack.pop();\n this.reduceContext(type, start);\n }\n // Shift a value into the buffer\n /**\n @internal\n */\n storeNode(term, start, end, size = 4, isReduce = false) {\n if (term == 0 /* Term.Err */ &&\n (!this.stack.length || this.stack[this.stack.length - 1] < this.buffer.length + this.bufferBase)) {\n // Try to omit/merge adjacent error nodes\n let cur = this, top = this.buffer.length;\n if (top == 0 && cur.parent) {\n top = cur.bufferBase - cur.parent.bufferBase;\n cur = cur.parent;\n }\n if (top > 0 && cur.buffer[top - 4] == 0 /* Term.Err */ && cur.buffer[top - 1] > -1) {\n if (start == end)\n return;\n if (cur.buffer[top - 2] >= start) {\n cur.buffer[top - 2] = end;\n return;\n }\n }\n }\n if (!isReduce || this.pos == end) { // Simple case, just append\n this.buffer.push(term, start, end, size);\n }\n else { // There may be skipped nodes that have to be moved forward\n let index = this.buffer.length;\n if (index > 0 && this.buffer[index - 4] != 0 /* Term.Err */)\n while (index > 0 && this.buffer[index - 2] > end) {\n // Move this record forward\n this.buffer[index] = this.buffer[index - 4];\n this.buffer[index + 1] = this.buffer[index - 3];\n this.buffer[index + 2] = this.buffer[index - 2];\n this.buffer[index + 3] = this.buffer[index - 1];\n index -= 4;\n if (size > 4)\n size -= 4;\n }\n this.buffer[index] = term;\n this.buffer[index + 1] = start;\n this.buffer[index + 2] = end;\n this.buffer[index + 3] = size;\n }\n }\n // Apply a shift action\n /**\n @internal\n */\n shift(action, type, start, end) {\n if (action & 131072 /* Action.GotoFlag */) {\n this.pushState(action & 65535 /* Action.ValueMask */, this.pos);\n }\n else if ((action & 262144 /* Action.StayFlag */) == 0) { // Regular shift\n let nextState = action, { parser } = this.p;\n if (end > this.pos || type <= parser.maxNode) {\n this.pos = end;\n if (!parser.stateFlag(nextState, 1 /* StateFlag.Skipped */))\n this.reducePos = end;\n }\n this.pushState(nextState, start);\n this.shiftContext(type, start);\n if (type <= parser.maxNode)\n this.buffer.push(type, start, end, 4);\n }\n else { // Shift-and-stay, which means this is a skipped token\n this.pos = end;\n this.shiftContext(type, start);\n if (type <= this.p.parser.maxNode)\n this.buffer.push(type, start, end, 4);\n }\n }\n // Apply an action\n /**\n @internal\n */\n apply(action, next, nextStart, nextEnd) {\n if (action & 65536 /* Action.ReduceFlag */)\n this.reduce(action);\n else\n this.shift(action, next, nextStart, nextEnd);\n }\n // Add a prebuilt (reused) node into the buffer.\n /**\n @internal\n */\n useNode(value, next) {\n let index = this.p.reused.length - 1;\n if (index < 0 || this.p.reused[index] != value) {\n this.p.reused.push(value);\n index++;\n }\n let start = this.pos;\n this.reducePos = this.pos = start + value.length;\n this.pushState(next, start);\n this.buffer.push(index, start, this.reducePos, -1 /* size == -1 means this is a reused value */);\n if (this.curContext)\n this.updateContext(this.curContext.tracker.reuse(this.curContext.context, value, this, this.p.stream.reset(this.pos - value.length)));\n }\n // Split the stack. Due to the buffer sharing and the fact\n // that `this.stack` tends to stay quite shallow, this isn't very\n // expensive.\n /**\n @internal\n */\n split() {\n let parent = this;\n let off = parent.buffer.length;\n // Because the top of the buffer (after this.pos) may be mutated\n // to reorder reductions and skipped tokens, and shared buffers\n // should be immutable, this copies any outstanding skipped tokens\n // to the new buffer, and puts the base pointer before them.\n while (off > 0 && parent.buffer[off - 2] > parent.reducePos)\n off -= 4;\n let buffer = parent.buffer.slice(off), base = parent.bufferBase + off;\n // Make sure parent points to an actual parent with content, if there is such a parent.\n while (parent && base == parent.bufferBase)\n parent = parent.parent;\n return new Stack(this.p, this.stack.slice(), this.state, this.reducePos, this.pos, this.score, buffer, base, this.curContext, this.lookAhead, parent);\n }\n // Try to recover from an error by 'deleting' (ignoring) one token.\n /**\n @internal\n */\n recoverByDelete(next, nextEnd) {\n let isNode = next <= this.p.parser.maxNode;\n if (isNode)\n this.storeNode(next, this.pos, nextEnd, 4);\n this.storeNode(0 /* Term.Err */, this.pos, nextEnd, isNode ? 8 : 4);\n this.pos = this.reducePos = nextEnd;\n this.score -= 190 /* Recover.Delete */;\n }\n /**\n Check if the given term would be able to be shifted (optionally\n after some reductions) on this stack. This can be useful for\n external tokenizers that want to make sure they only provide a\n given token when it applies.\n */\n canShift(term) {\n for (let sim = new SimulatedStack(this);;) {\n let action = this.p.parser.stateSlot(sim.state, 4 /* ParseState.DefaultReduce */) || this.p.parser.hasAction(sim.state, term);\n if (action == 0)\n return false;\n if ((action & 65536 /* Action.ReduceFlag */) == 0)\n return true;\n sim.reduce(action);\n }\n }\n // Apply up to Recover.MaxNext recovery actions that conceptually\n // inserts some missing token or rule.\n /**\n @internal\n */\n recoverByInsert(next) {\n if (this.stack.length >= 300 /* Recover.MaxInsertStackDepth */)\n return [];\n let nextStates = this.p.parser.nextStates(this.state);\n if (nextStates.length > 4 /* Recover.MaxNext */ << 1 || this.stack.length >= 120 /* Recover.DampenInsertStackDepth */) {\n let best = [];\n for (let i = 0, s; i < nextStates.length; i += 2) {\n if ((s = nextStates[i + 1]) != this.state && this.p.parser.hasAction(s, next))\n best.push(nextStates[i], s);\n }\n if (this.stack.length < 120 /* Recover.DampenInsertStackDepth */)\n for (let i = 0; best.length < 4 /* Recover.MaxNext */ << 1 && i < nextStates.length; i += 2) {\n let s = nextStates[i + 1];\n if (!best.some((v, i) => (i & 1) && v == s))\n best.push(nextStates[i], s);\n }\n nextStates = best;\n }\n let result = [];\n for (let i = 0; i < nextStates.length && result.length < 4 /* Recover.MaxNext */; i += 2) {\n let s = nextStates[i + 1];\n if (s == this.state)\n continue;\n let stack = this.split();\n stack.pushState(s, this.pos);\n stack.storeNode(0 /* Term.Err */, stack.pos, stack.pos, 4, true);\n stack.shiftContext(nextStates[i], this.pos);\n stack.reducePos = this.pos;\n stack.score -= 200 /* Recover.Insert */;\n result.push(stack);\n }\n return result;\n }\n // Force a reduce, if possible. Return false if that can't\n // be done.\n /**\n @internal\n */\n forceReduce() {\n let { parser } = this.p;\n let reduce = parser.stateSlot(this.state, 5 /* ParseState.ForcedReduce */);\n if ((reduce & 65536 /* Action.ReduceFlag */) == 0)\n return false;\n if (!parser.validAction(this.state, reduce)) {\n let depth = reduce >> 19 /* Action.ReduceDepthShift */, term = reduce & 65535 /* Action.ValueMask */;\n let target = this.stack.length - depth * 3;\n if (target < 0 || parser.getGoto(this.stack[target], term, false) < 0) {\n let backup = this.findForcedReduction();\n if (backup == null)\n return false;\n reduce = backup;\n }\n this.storeNode(0 /* Term.Err */, this.pos, this.pos, 4, true);\n this.score -= 100 /* Recover.Reduce */;\n }\n this.reducePos = this.pos;\n this.reduce(reduce);\n return true;\n }\n /**\n Try to scan through the automaton to find some kind of reduction\n that can be applied. Used when the regular ForcedReduce field\n isn't a valid action. @internal\n */\n findForcedReduction() {\n let { parser } = this.p, seen = [];\n let explore = (state, depth) => {\n if (seen.includes(state))\n return;\n seen.push(state);\n return parser.allActions(state, (action) => {\n if (action & (262144 /* Action.StayFlag */ | 131072 /* Action.GotoFlag */)) ;\n else if (action & 65536 /* Action.ReduceFlag */) {\n let rDepth = (action >> 19 /* Action.ReduceDepthShift */) - depth;\n if (rDepth > 1) {\n let term = action & 65535 /* Action.ValueMask */, target = this.stack.length - rDepth * 3;\n if (target >= 0 && parser.getGoto(this.stack[target], term, false) >= 0)\n return (rDepth << 19 /* Action.ReduceDepthShift */) | 65536 /* Action.ReduceFlag */ | term;\n }\n }\n else {\n let found = explore(action, depth + 1);\n if (found != null)\n return found;\n }\n });\n };\n return explore(this.state, 0);\n }\n /**\n @internal\n */\n forceAll() {\n while (!this.p.parser.stateFlag(this.state, 2 /* StateFlag.Accepting */)) {\n if (!this.forceReduce()) {\n this.storeNode(0 /* Term.Err */, this.pos, this.pos, 4, true);\n break;\n }\n }\n return this;\n }\n /**\n Check whether this state has no further actions (assumed to be a direct descendant of the\n top state, since any other states must be able to continue\n somehow). @internal\n */\n get deadEnd() {\n if (this.stack.length != 3)\n return false;\n let { parser } = this.p;\n return parser.data[parser.stateSlot(this.state, 1 /* ParseState.Actions */)] == 65535 /* Seq.End */ &&\n !parser.stateSlot(this.state, 4 /* ParseState.DefaultReduce */);\n }\n /**\n Restart the stack (put it back in its start state). Only safe\n when this.stack.length == 3 (state is directly below the top\n state). @internal\n */\n restart() {\n this.storeNode(0 /* Term.Err */, this.pos, this.pos, 4, true);\n this.state = this.stack[0];\n this.stack.length = 0;\n }\n /**\n @internal\n */\n sameState(other) {\n if (this.state != other.state || this.stack.length != other.stack.length)\n return false;\n for (let i = 0; i < this.stack.length; i += 3)\n if (this.stack[i] != other.stack[i])\n return false;\n return true;\n }\n /**\n Get the parser used by this stack.\n */\n get parser() { return this.p.parser; }\n /**\n Test whether a given dialect (by numeric ID, as exported from\n the terms file) is enabled.\n */\n dialectEnabled(dialectID) { return this.p.parser.dialect.flags[dialectID]; }\n shiftContext(term, start) {\n if (this.curContext)\n this.updateContext(this.curContext.tracker.shift(this.curContext.context, term, this, this.p.stream.reset(start)));\n }\n reduceContext(term, start) {\n if (this.curContext)\n this.updateContext(this.curContext.tracker.reduce(this.curContext.context, term, this, this.p.stream.reset(start)));\n }\n /**\n @internal\n */\n emitContext() {\n let last = this.buffer.length - 1;\n if (last < 0 || this.buffer[last] != -3)\n this.buffer.push(this.curContext.hash, this.pos, this.pos, -3);\n }\n /**\n @internal\n */\n emitLookAhead() {\n let last = this.buffer.length - 1;\n if (last < 0 || this.buffer[last] != -4)\n this.buffer.push(this.lookAhead, this.pos, this.pos, -4);\n }\n updateContext(context) {\n if (context != this.curContext.context) {\n let newCx = new StackContext(this.curContext.tracker, context);\n if (newCx.hash != this.curContext.hash)\n this.emitContext();\n this.curContext = newCx;\n }\n }\n /**\n @internal\n */\n setLookAhead(lookAhead) {\n if (lookAhead > this.lookAhead) {\n this.emitLookAhead();\n this.lookAhead = lookAhead;\n }\n }\n /**\n @internal\n */\n close() {\n if (this.curContext && this.curContext.tracker.strict)\n this.emitContext();\n if (this.lookAhead > 0)\n this.emitLookAhead();\n }\n}\nclass StackContext {\n constructor(tracker, context) {\n this.tracker = tracker;\n this.context = context;\n this.hash = tracker.strict ? tracker.hash(context) : 0;\n }\n}\n// Used to cheaply run some reductions to scan ahead without mutating\n// an entire stack\nclass SimulatedStack {\n constructor(start) {\n this.start = start;\n this.state = start.state;\n this.stack = start.stack;\n this.base = this.stack.length;\n }\n reduce(action) {\n let term = action & 65535 /* Action.ValueMask */, depth = action >> 19 /* Action.ReduceDepthShift */;\n if (depth == 0) {\n if (this.stack == this.start.stack)\n this.stack = this.stack.slice();\n this.stack.push(this.state, 0, 0);\n this.base += 3;\n }\n else {\n this.base -= (depth - 1) * 3;\n }\n let goto = this.start.p.parser.getGoto(this.stack[this.base - 3], term, true);\n this.state = goto;\n }\n}\n// This is given to `Tree.build` to build a buffer, and encapsulates\n// the parent-stack-walking necessary to read the nodes.\nclass StackBufferCursor {\n constructor(stack, pos, index) {\n this.stack = stack;\n this.pos = pos;\n this.index = index;\n this.buffer = stack.buffer;\n if (this.index == 0)\n this.maybeNext();\n }\n static create(stack, pos = stack.bufferBase + stack.buffer.length) {\n return new StackBufferCursor(stack, pos, pos - stack.bufferBase);\n }\n maybeNext() {\n let next = this.stack.parent;\n if (next != null) {\n this.index = this.stack.bufferBase - next.bufferBase;\n this.stack = next;\n this.buffer = next.buffer;\n }\n }\n get id() { return this.buffer[this.index - 4]; }\n get start() { return this.buffer[this.index - 3]; }\n get end() { return this.buffer[this.index - 2]; }\n get size() { return this.buffer[this.index - 1]; }\n next() {\n this.index -= 4;\n this.pos -= 4;\n if (this.index == 0)\n this.maybeNext();\n }\n fork() {\n return new StackBufferCursor(this.stack, this.pos, this.index);\n }\n}\n\n// See lezer-generator/src/encode.ts for comments about the encoding\n// used here\nfunction decodeArray(input, Type = Uint16Array) {\n if (typeof input != \"string\")\n return input;\n let array = null;\n for (let pos = 0, out = 0; pos < input.length;) {\n let value = 0;\n for (;;) {\n let next = input.charCodeAt(pos++), stop = false;\n if (next == 126 /* Encode.BigValCode */) {\n value = 65535 /* Encode.BigVal */;\n break;\n }\n if (next >= 92 /* Encode.Gap2 */)\n next--;\n if (next >= 34 /* Encode.Gap1 */)\n next--;\n let digit = next - 32 /* Encode.Start */;\n if (digit >= 46 /* Encode.Base */) {\n digit -= 46 /* Encode.Base */;\n stop = true;\n }\n value += digit;\n if (stop)\n break;\n value *= 46 /* Encode.Base */;\n }\n if (array)\n array[out++] = value;\n else\n array = new Type(value);\n }\n return array;\n}\n\nclass CachedToken {\n constructor() {\n this.start = -1;\n this.value = -1;\n this.end = -1;\n this.extended = -1;\n this.lookAhead = 0;\n this.mask = 0;\n this.context = 0;\n }\n}\nconst nullToken = new CachedToken;\n/**\n[Tokenizers](#lr.ExternalTokenizer) interact with the input\nthrough this interface. It presents the input as a stream of\ncharacters, tracking lookahead and hiding the complexity of\n[ranges](#common.Parser.parse^ranges) from tokenizer code.\n*/\nclass InputStream {\n /**\n @internal\n */\n constructor(\n /**\n @internal\n */\n input, \n /**\n @internal\n */\n ranges) {\n this.input = input;\n this.ranges = ranges;\n /**\n @internal\n */\n this.chunk = \"\";\n /**\n @internal\n */\n this.chunkOff = 0;\n /**\n Backup chunk\n */\n this.chunk2 = \"\";\n this.chunk2Pos = 0;\n /**\n The character code of the next code unit in the input, or -1\n when the stream is at the end of the input.\n */\n this.next = -1;\n /**\n @internal\n */\n this.token = nullToken;\n this.rangeIndex = 0;\n this.pos = this.chunkPos = ranges[0].from;\n this.range = ranges[0];\n this.end = ranges[ranges.length - 1].to;\n this.readNext();\n }\n /**\n @internal\n */\n resolveOffset(offset, assoc) {\n let range = this.range, index = this.rangeIndex;\n let pos = this.pos + offset;\n while (pos < range.from) {\n if (!index)\n return null;\n let next = this.ranges[--index];\n pos -= range.from - next.to;\n range = next;\n }\n while (assoc < 0 ? pos > range.to : pos >= range.to) {\n if (index == this.ranges.length - 1)\n return null;\n let next = this.ranges[++index];\n pos += next.from - range.to;\n range = next;\n }\n return pos;\n }\n /**\n @internal\n */\n clipPos(pos) {\n if (pos >= this.range.from && pos < this.range.to)\n return pos;\n for (let range of this.ranges)\n if (range.to > pos)\n return Math.max(pos, range.from);\n return this.end;\n }\n /**\n Look at a code unit near the stream position. `.peek(0)` equals\n `.next`, `.peek(-1)` gives you the previous character, and so\n on.\n \n Note that looking around during tokenizing creates dependencies\n on potentially far-away content, which may reduce the\n effectiveness incremental parsing—when looking forward—or even\n cause invalid reparses when looking backward more than 25 code\n units, since the library does not track lookbehind.\n */\n peek(offset) {\n let idx = this.chunkOff + offset, pos, result;\n if (idx >= 0 && idx < this.chunk.length) {\n pos = this.pos + offset;\n result = this.chunk.charCodeAt(idx);\n }\n else {\n let resolved = this.resolveOffset(offset, 1);\n if (resolved == null)\n return -1;\n pos = resolved;\n if (pos >= this.chunk2Pos && pos < this.chunk2Pos + this.chunk2.length) {\n result = this.chunk2.charCodeAt(pos - this.chunk2Pos);\n }\n else {\n let i = this.rangeIndex, range = this.range;\n while (range.to <= pos)\n range = this.ranges[++i];\n this.chunk2 = this.input.chunk(this.chunk2Pos = pos);\n if (pos + this.chunk2.length > range.to)\n this.chunk2 = this.chunk2.slice(0, range.to - pos);\n result = this.chunk2.charCodeAt(0);\n }\n }\n if (pos >= this.token.lookAhead)\n this.token.lookAhead = pos + 1;\n return result;\n }\n /**\n Accept a token. By default, the end of the token is set to the\n current stream position, but you can pass an offset (relative to\n the stream position) to change that.\n */\n acceptToken(token, endOffset = 0) {\n let end = endOffset ? this.resolveOffset(endOffset, -1) : this.pos;\n if (end == null || end < this.token.start)\n throw new RangeError(\"Token end out of bounds\");\n this.token.value = token;\n this.token.end = end;\n }\n getChunk() {\n if (this.pos >= this.chunk2Pos && this.pos < this.chunk2Pos + this.chunk2.length) {\n let { chunk, chunkPos } = this;\n this.chunk = this.chunk2;\n this.chunkPos = this.chunk2Pos;\n this.chunk2 = chunk;\n this.chunk2Pos = chunkPos;\n this.chunkOff = this.pos - this.chunkPos;\n }\n else {\n this.chunk2 = this.chunk;\n this.chunk2Pos = this.chunkPos;\n let nextChunk = this.input.chunk(this.pos);\n let end = this.pos + nextChunk.length;\n this.chunk = end > this.range.to ? nextChunk.slice(0, this.range.to - this.pos) : nextChunk;\n this.chunkPos = this.pos;\n this.chunkOff = 0;\n }\n }\n readNext() {\n if (this.chunkOff >= this.chunk.length) {\n this.getChunk();\n if (this.chunkOff == this.chunk.length)\n return this.next = -1;\n }\n return this.next = this.chunk.charCodeAt(this.chunkOff);\n }\n /**\n Move the stream forward N (defaults to 1) code units. Returns\n the new value of [`next`](#lr.InputStream.next).\n */\n advance(n = 1) {\n this.chunkOff += n;\n while (this.pos + n >= this.range.to) {\n if (this.rangeIndex == this.ranges.length - 1)\n return this.setDone();\n n -= this.range.to - this.pos;\n this.range = this.ranges[++this.rangeIndex];\n this.pos = this.range.from;\n }\n this.pos += n;\n if (this.pos >= this.token.lookAhead)\n this.token.lookAhead = this.pos + 1;\n return this.readNext();\n }\n setDone() {\n this.pos = this.chunkPos = this.end;\n this.range = this.ranges[this.rangeIndex = this.ranges.length - 1];\n this.chunk = \"\";\n return this.next = -1;\n }\n /**\n @internal\n */\n reset(pos, token) {\n if (token) {\n this.token = token;\n token.start = pos;\n token.lookAhead = pos + 1;\n token.value = token.extended = -1;\n }\n else {\n this.token = nullToken;\n }\n if (this.pos != pos) {\n this.pos = pos;\n if (pos == this.end) {\n this.setDone();\n return this;\n }\n while (pos < this.range.from)\n this.range = this.ranges[--this.rangeIndex];\n while (pos >= this.range.to)\n this.range = this.ranges[++this.rangeIndex];\n if (pos >= this.chunkPos && pos < this.chunkPos + this.chunk.length) {\n this.chunkOff = pos - this.chunkPos;\n }\n else {\n this.chunk = \"\";\n this.chunkOff = 0;\n }\n this.readNext();\n }\n return this;\n }\n /**\n @internal\n */\n read(from, to) {\n if (from >= this.chunkPos && to <= this.chunkPos + this.chunk.length)\n return this.chunk.slice(from - this.chunkPos, to - this.chunkPos);\n if (from >= this.chunk2Pos && to <= this.chunk2Pos + this.chunk2.length)\n return this.chunk2.slice(from - this.chunk2Pos, to - this.chunk2Pos);\n if (from >= this.range.from && to <= this.range.to)\n return this.input.read(from, to);\n let result = \"\";\n for (let r of this.ranges) {\n if (r.from >= to)\n break;\n if (r.to > from)\n result += this.input.read(Math.max(r.from, from), Math.min(r.to, to));\n }\n return result;\n }\n}\n/**\n@internal\n*/\nclass TokenGroup {\n constructor(data, id) {\n this.data = data;\n this.id = id;\n }\n token(input, stack) {\n let { parser } = stack.p;\n readToken(this.data, input, stack, this.id, parser.data, parser.tokenPrecTable);\n }\n}\nTokenGroup.prototype.contextual = TokenGroup.prototype.fallback = TokenGroup.prototype.extend = false;\n/**\n@hide\n*/\nclass LocalTokenGroup {\n constructor(data, precTable, elseToken) {\n this.precTable = precTable;\n this.elseToken = elseToken;\n this.data = typeof data == \"string\" ? decodeArray(data) : data;\n }\n token(input, stack) {\n let start = input.pos, skipped = 0;\n for (;;) {\n let atEof = input.next < 0, nextPos = input.resolveOffset(1, 1);\n readToken(this.data, input, stack, 0, this.data, this.precTable);\n if (input.token.value > -1)\n break;\n if (this.elseToken == null)\n return;\n if (!atEof)\n skipped++;\n if (nextPos == null)\n break;\n input.reset(nextPos, input.token);\n }\n if (skipped) {\n input.reset(start, input.token);\n input.acceptToken(this.elseToken, skipped);\n }\n }\n}\nLocalTokenGroup.prototype.contextual = TokenGroup.prototype.fallback = TokenGroup.prototype.extend = false;\n/**\n`@external tokens` declarations in the grammar should resolve to\nan instance of this class.\n*/\nclass ExternalTokenizer {\n /**\n Create a tokenizer. The first argument is the function that,\n given an input stream, scans for the types of tokens it\n recognizes at the stream's position, and calls\n [`acceptToken`](#lr.InputStream.acceptToken) when it finds\n one.\n */\n constructor(\n /**\n @internal\n */\n token, options = {}) {\n this.token = token;\n this.contextual = !!options.contextual;\n this.fallback = !!options.fallback;\n this.extend = !!options.extend;\n }\n}\n// Tokenizer data is stored a big uint16 array containing, for each\n// state:\n//\n// - A group bitmask, indicating what token groups are reachable from\n// this state, so that paths that can only lead to tokens not in\n// any of the current groups can be cut off early.\n//\n// - The position of the end of the state's sequence of accepting\n// tokens\n//\n// - The number of outgoing edges for the state\n//\n// - The accepting tokens, as (token id, group mask) pairs\n//\n// - The outgoing edges, as (start character, end character, state\n// index) triples, with end character being exclusive\n//\n// This function interprets that data, running through a stream as\n// long as new states with the a matching group mask can be reached,\n// and updating `input.token` when it matches a token.\nfunction readToken(data, input, stack, group, precTable, precOffset) {\n let state = 0, groupMask = 1 << group, { dialect } = stack.p.parser;\n scan: for (;;) {\n if ((groupMask & data[state]) == 0)\n break;\n let accEnd = data[state + 1];\n // Check whether this state can lead to a token in the current group\n // Accept tokens in this state, possibly overwriting\n // lower-precedence / shorter tokens\n for (let i = state + 3; i < accEnd; i += 2)\n if ((data[i + 1] & groupMask) > 0) {\n let term = data[i];\n if (dialect.allows(term) &&\n (input.token.value == -1 || input.token.value == term ||\n overrides(term, input.token.value, precTable, precOffset))) {\n input.acceptToken(term);\n break;\n }\n }\n let next = input.next, low = 0, high = data[state + 2];\n // Special case for EOF\n if (input.next < 0 && high > low && data[accEnd + high * 3 - 3] == 65535 /* Seq.End */) {\n state = data[accEnd + high * 3 - 1];\n continue scan;\n }\n // Do a binary search on the state's edges\n for (; low < high;) {\n let mid = (low + high) >> 1;\n let index = accEnd + mid + (mid << 1);\n let from = data[index], to = data[index + 1] || 0x10000;\n if (next < from)\n high = mid;\n else if (next >= to)\n low = mid + 1;\n else {\n state = data[index + 2];\n input.advance();\n continue scan;\n }\n }\n break;\n }\n}\nfunction findOffset(data, start, term) {\n for (let i = start, next; (next = data[i]) != 65535 /* Seq.End */; i++)\n if (next == term)\n return i - start;\n return -1;\n}\nfunction overrides(token, prev, tableData, tableOffset) {\n let iPrev = findOffset(tableData, tableOffset, prev);\n return iPrev < 0 || findOffset(tableData, tableOffset, token) < iPrev;\n}\n\n// Environment variable used to control console output\nconst verbose = typeof process != \"undefined\" && process.env && /\\bparse\\b/.test(process.env.LOG);\nlet stackIDs = null;\nfunction cutAt(tree, pos, side) {\n let cursor = tree.cursor(IterMode.IncludeAnonymous);\n cursor.moveTo(pos);\n for (;;) {\n if (!(side < 0 ? cursor.childBefore(pos) : cursor.childAfter(pos)))\n for (;;) {\n if ((side < 0 ? cursor.to < pos : cursor.from > pos) && !cursor.type.isError)\n return side < 0 ? Math.max(0, Math.min(cursor.to - 1, pos - 25 /* Safety.Margin */))\n : Math.min(tree.length, Math.max(cursor.from + 1, pos + 25 /* Safety.Margin */));\n if (side < 0 ? cursor.prevSibling() : cursor.nextSibling())\n break;\n if (!cursor.parent())\n return side < 0 ? 0 : tree.length;\n }\n }\n}\nclass FragmentCursor {\n constructor(fragments, nodeSet) {\n this.fragments = fragments;\n this.nodeSet = nodeSet;\n this.i = 0;\n this.fragment = null;\n this.safeFrom = -1;\n this.safeTo = -1;\n this.trees = [];\n this.start = [];\n this.index = [];\n this.nextFragment();\n }\n nextFragment() {\n let fr = this.fragment = this.i == this.fragments.length ? null : this.fragments[this.i++];\n if (fr) {\n this.safeFrom = fr.openStart ? cutAt(fr.tree, fr.from + fr.offset, 1) - fr.offset : fr.from;\n this.safeTo = fr.openEnd ? cutAt(fr.tree, fr.to + fr.offset, -1) - fr.offset : fr.to;\n while (this.trees.length) {\n this.trees.pop();\n this.start.pop();\n this.index.pop();\n }\n this.trees.push(fr.tree);\n this.start.push(-fr.offset);\n this.index.push(0);\n this.nextStart = this.safeFrom;\n }\n else {\n this.nextStart = 1e9;\n }\n }\n // `pos` must be >= any previously given `pos` for this cursor\n nodeAt(pos) {\n if (pos < this.nextStart)\n return null;\n while (this.fragment && this.safeTo <= pos)\n this.nextFragment();\n if (!this.fragment)\n return null;\n for (;;) {\n let last = this.trees.length - 1;\n if (last < 0) { // End of tree\n this.nextFragment();\n return null;\n }\n let top = this.trees[last], index = this.index[last];\n if (index == top.children.length) {\n this.trees.pop();\n this.start.pop();\n this.index.pop();\n continue;\n }\n let next = top.children[index];\n let start = this.start[last] + top.positions[index];\n if (start > pos) {\n this.nextStart = start;\n return null;\n }\n if (next instanceof Tree) {\n if (start == pos) {\n if (start < this.safeFrom)\n return null;\n let end = start + next.length;\n if (end <= this.safeTo) {\n let lookAhead = next.prop(NodeProp.lookAhead);\n if (!lookAhead || end + lookAhead < this.fragment.to)\n return next;\n }\n }\n this.index[last]++;\n if (start + next.length >= Math.max(this.safeFrom, pos)) { // Enter this node\n this.trees.push(next);\n this.start.push(start);\n this.index.push(0);\n }\n }\n else {\n this.index[last]++;\n this.nextStart = start + next.length;\n }\n }\n }\n}\nclass TokenCache {\n constructor(parser, stream) {\n this.stream = stream;\n this.tokens = [];\n this.mainToken = null;\n this.actions = [];\n this.tokens = parser.tokenizers.map(_ => new CachedToken);\n }\n getActions(stack) {\n let actionIndex = 0;\n let main = null;\n let { parser } = stack.p, { tokenizers } = parser;\n let mask = parser.stateSlot(stack.state, 3 /* ParseState.TokenizerMask */);\n let context = stack.curContext ? stack.curContext.hash : 0;\n let lookAhead = 0;\n for (let i = 0; i < tokenizers.length; i++) {\n if (((1 << i) & mask) == 0)\n continue;\n let tokenizer = tokenizers[i], token = this.tokens[i];\n if (main && !tokenizer.fallback)\n continue;\n if (tokenizer.contextual || token.start != stack.pos || token.mask != mask || token.context != context) {\n this.updateCachedToken(token, tokenizer, stack);\n token.mask = mask;\n token.context = context;\n }\n if (token.lookAhead > token.end + 25 /* Safety.Margin */)\n lookAhead = Math.max(token.lookAhead, lookAhead);\n if (token.value != 0 /* Term.Err */) {\n let startIndex = actionIndex;\n if (token.extended > -1)\n actionIndex = this.addActions(stack, token.extended, token.end, actionIndex);\n actionIndex = this.addActions(stack, token.value, token.end, actionIndex);\n if (!tokenizer.extend) {\n main = token;\n if (actionIndex > startIndex)\n break;\n }\n }\n }\n while (this.actions.length > actionIndex)\n this.actions.pop();\n if (lookAhead)\n stack.setLookAhead(lookAhead);\n if (!main && stack.pos == this.stream.end) {\n main = new CachedToken;\n main.value = stack.p.parser.eofTerm;\n main.start = main.end = stack.pos;\n actionIndex = this.addActions(stack, main.value, main.end, actionIndex);\n }\n this.mainToken = main;\n return this.actions;\n }\n getMainToken(stack) {\n if (this.mainToken)\n return this.mainToken;\n let main = new CachedToken, { pos, p } = stack;\n main.start = pos;\n main.end = Math.min(pos + 1, p.stream.end);\n main.value = pos == p.stream.end ? p.parser.eofTerm : 0 /* Term.Err */;\n return main;\n }\n updateCachedToken(token, tokenizer, stack) {\n let start = this.stream.clipPos(stack.pos);\n tokenizer.token(this.stream.reset(start, token), stack);\n if (token.value > -1) {\n let { parser } = stack.p;\n for (let i = 0; i < parser.specialized.length; i++)\n if (parser.specialized[i] == token.value) {\n let result = parser.specializers[i](this.stream.read(token.start, token.end), stack);\n if (result >= 0 && stack.p.parser.dialect.allows(result >> 1)) {\n if ((result & 1) == 0 /* Specialize.Specialize */)\n token.value = result >> 1;\n else\n token.extended = result >> 1;\n break;\n }\n }\n }\n else {\n token.value = 0 /* Term.Err */;\n token.end = this.stream.clipPos(start + 1);\n }\n }\n putAction(action, token, end, index) {\n // Don't add duplicate actions\n for (let i = 0; i < index; i += 3)\n if (this.actions[i] == action)\n return index;\n this.actions[index++] = action;\n this.actions[index++] = token;\n this.actions[index++] = end;\n return index;\n }\n addActions(stack, token, end, index) {\n let { state } = stack, { parser } = stack.p, { data } = parser;\n for (let set = 0; set < 2; set++) {\n for (let i = parser.stateSlot(state, set ? 2 /* ParseState.Skip */ : 1 /* ParseState.Actions */);; i += 3) {\n if (data[i] == 65535 /* Seq.End */) {\n if (data[i + 1] == 1 /* Seq.Next */) {\n i = pair(data, i + 2);\n }\n else {\n if (index == 0 && data[i + 1] == 2 /* Seq.Other */)\n index = this.putAction(pair(data, i + 2), token, end, index);\n break;\n }\n }\n if (data[i] == token)\n index = this.putAction(pair(data, i + 1), token, end, index);\n }\n }\n return index;\n }\n}\nclass Parse {\n constructor(parser, input, fragments, ranges) {\n this.parser = parser;\n this.input = input;\n this.ranges = ranges;\n this.recovering = 0;\n this.nextStackID = 0x2654; // ♔, ♕, ♖, ♗, ♘, ♙, ♠, ♡, ♢, ♣, ♤, ♥, ♦, ♧\n this.minStackPos = 0;\n this.reused = [];\n this.stoppedAt = null;\n this.lastBigReductionStart = -1;\n this.lastBigReductionSize = 0;\n this.bigReductionCount = 0;\n this.stream = new InputStream(input, ranges);\n this.tokens = new TokenCache(parser, this.stream);\n this.topTerm = parser.top[1];\n let { from } = ranges[0];\n this.stacks = [Stack.start(this, parser.top[0], from)];\n this.fragments = fragments.length && this.stream.end - from > parser.bufferLength * 4\n ? new FragmentCursor(fragments, parser.nodeSet) : null;\n }\n get parsedPos() {\n return this.minStackPos;\n }\n // Move the parser forward. This will process all parse stacks at\n // `this.pos` and try to advance them to a further position. If no\n // stack for such a position is found, it'll start error-recovery.\n //\n // When the parse is finished, this will return a syntax tree. When\n // not, it returns `null`.\n advance() {\n let stacks = this.stacks, pos = this.minStackPos;\n // This will hold stacks beyond `pos`.\n let newStacks = this.stacks = [];\n let stopped, stoppedTokens;\n // If a large amount of reductions happened with the same start\n // position, force the stack out of that production in order to\n // avoid creating a tree too deep to recurse through.\n // (This is an ugly kludge, because unfortunately there is no\n // straightforward, cheap way to check for this happening, due to\n // the history of reductions only being available in an\n // expensive-to-access format in the stack buffers.)\n if (this.bigReductionCount > 300 /* Rec.MaxLeftAssociativeReductionCount */ && stacks.length == 1) {\n let [s] = stacks;\n while (s.forceReduce() && s.stack.length && s.stack[s.stack.length - 2] >= this.lastBigReductionStart) { }\n this.bigReductionCount = this.lastBigReductionSize = 0;\n }\n // Keep advancing any stacks at `pos` until they either move\n // forward or can't be advanced. Gather stacks that can't be\n // advanced further in `stopped`.\n for (let i = 0; i < stacks.length; i++) {\n let stack = stacks[i];\n for (;;) {\n this.tokens.mainToken = null;\n if (stack.pos > pos) {\n newStacks.push(stack);\n }\n else if (this.advanceStack(stack, newStacks, stacks)) {\n continue;\n }\n else {\n if (!stopped) {\n stopped = [];\n stoppedTokens = [];\n }\n stopped.push(stack);\n let tok = this.tokens.getMainToken(stack);\n stoppedTokens.push(tok.value, tok.end);\n }\n break;\n }\n }\n if (!newStacks.length) {\n let finished = stopped && findFinished(stopped);\n if (finished) {\n if (verbose)\n console.log(\"Finish with \" + this.stackID(finished));\n return this.stackToTree(finished);\n }\n if (this.parser.strict) {\n if (verbose && stopped)\n console.log(\"Stuck with token \" + (this.tokens.mainToken ? this.parser.getName(this.tokens.mainToken.value) : \"none\"));\n throw new SyntaxError(\"No parse at \" + pos);\n }\n if (!this.recovering)\n this.recovering = 5 /* Rec.Distance */;\n }\n if (this.recovering && stopped) {\n let finished = this.stoppedAt != null && stopped[0].pos > this.stoppedAt ? stopped[0]\n : this.runRecovery(stopped, stoppedTokens, newStacks);\n if (finished) {\n if (verbose)\n console.log(\"Force-finish \" + this.stackID(finished));\n return this.stackToTree(finished.forceAll());\n }\n }\n if (this.recovering) {\n let maxRemaining = this.recovering == 1 ? 1 : this.recovering * 3 /* Rec.MaxRemainingPerStep */;\n if (newStacks.length > maxRemaining) {\n newStacks.sort((a, b) => b.score - a.score);\n while (newStacks.length > maxRemaining)\n newStacks.pop();\n }\n if (newStacks.some(s => s.reducePos > pos))\n this.recovering--;\n }\n else if (newStacks.length > 1) {\n // Prune stacks that are in the same state, or that have been\n // running without splitting for a while, to avoid getting stuck\n // with multiple successful stacks running endlessly on.\n outer: for (let i = 0; i < newStacks.length - 1; i++) {\n let stack = newStacks[i];\n for (let j = i + 1; j < newStacks.length; j++) {\n let other = newStacks[j];\n if (stack.sameState(other) ||\n stack.buffer.length > 500 /* Rec.MinBufferLengthPrune */ && other.buffer.length > 500 /* Rec.MinBufferLengthPrune */) {\n if (((stack.score - other.score) || (stack.buffer.length - other.buffer.length)) > 0) {\n newStacks.splice(j--, 1);\n }\n else {\n newStacks.splice(i--, 1);\n continue outer;\n }\n }\n }\n }\n if (newStacks.length > 12 /* Rec.MaxStackCount */)\n newStacks.splice(12 /* Rec.MaxStackCount */, newStacks.length - 12 /* Rec.MaxStackCount */);\n }\n this.minStackPos = newStacks[0].pos;\n for (let i = 1; i < newStacks.length; i++)\n if (newStacks[i].pos < this.minStackPos)\n this.minStackPos = newStacks[i].pos;\n return null;\n }\n stopAt(pos) {\n if (this.stoppedAt != null && this.stoppedAt < pos)\n throw new RangeError(\"Can't move stoppedAt forward\");\n this.stoppedAt = pos;\n }\n // Returns an updated version of the given stack, or null if the\n // stack can't advance normally. When `split` and `stacks` are\n // given, stacks split off by ambiguous operations will be pushed to\n // `split`, or added to `stacks` if they move `pos` forward.\n advanceStack(stack, stacks, split) {\n let start = stack.pos, { parser } = this;\n let base = verbose ? this.stackID(stack) + \" -> \" : \"\";\n if (this.stoppedAt != null && start > this.stoppedAt)\n return stack.forceReduce() ? stack : null;\n if (this.fragments) {\n let strictCx = stack.curContext && stack.curContext.tracker.strict, cxHash = strictCx ? stack.curContext.hash : 0;\n for (let cached = this.fragments.nodeAt(start); cached;) {\n let match = this.parser.nodeSet.types[cached.type.id] == cached.type ? parser.getGoto(stack.state, cached.type.id) : -1;\n if (match > -1 && cached.length && (!strictCx || (cached.prop(NodeProp.contextHash) || 0) == cxHash)) {\n stack.useNode(cached, match);\n if (verbose)\n console.log(base + this.stackID(stack) + ` (via reuse of ${parser.getName(cached.type.id)})`);\n return true;\n }\n if (!(cached instanceof Tree) || cached.children.length == 0 || cached.positions[0] > 0)\n break;\n let inner = cached.children[0];\n if (inner instanceof Tree && cached.positions[0] == 0)\n cached = inner;\n else\n break;\n }\n }\n let defaultReduce = parser.stateSlot(stack.state, 4 /* ParseState.DefaultReduce */);\n if (defaultReduce > 0) {\n stack.reduce(defaultReduce);\n if (verbose)\n console.log(base + this.stackID(stack) + ` (via always-reduce ${parser.getName(defaultReduce & 65535 /* Action.ValueMask */)})`);\n return true;\n }\n if (stack.stack.length >= 8400 /* Rec.CutDepth */) {\n while (stack.stack.length > 6000 /* Rec.CutTo */ && stack.forceReduce()) { }\n }\n let actions = this.tokens.getActions(stack);\n for (let i = 0; i < actions.length;) {\n let action = actions[i++], term = actions[i++], end = actions[i++];\n let last = i == actions.length || !split;\n let localStack = last ? stack : stack.split();\n let main = this.tokens.mainToken;\n localStack.apply(action, term, main ? main.start : localStack.pos, end);\n if (verbose)\n console.log(base + this.stackID(localStack) + ` (via ${(action & 65536 /* Action.ReduceFlag */) == 0 ? \"shift\"\n : `reduce of ${parser.getName(action & 65535 /* Action.ValueMask */)}`} for ${parser.getName(term)} @ ${start}${localStack == stack ? \"\" : \", split\"})`);\n if (last)\n return true;\n else if (localStack.pos > start)\n stacks.push(localStack);\n else\n split.push(localStack);\n }\n return false;\n }\n // Advance a given stack forward as far as it will go. Returns the\n // (possibly updated) stack if it got stuck, or null if it moved\n // forward and was given to `pushStackDedup`.\n advanceFully(stack, newStacks) {\n let pos = stack.pos;\n for (;;) {\n if (!this.advanceStack(stack, null, null))\n return false;\n if (stack.pos > pos) {\n pushStackDedup(stack, newStacks);\n return true;\n }\n }\n }\n runRecovery(stacks, tokens, newStacks) {\n let finished = null, restarted = false;\n for (let i = 0; i < stacks.length; i++) {\n let stack = stacks[i], token = tokens[i << 1], tokenEnd = tokens[(i << 1) + 1];\n let base = verbose ? this.stackID(stack) + \" -> \" : \"\";\n if (stack.deadEnd) {\n if (restarted)\n continue;\n restarted = true;\n stack.restart();\n if (verbose)\n console.log(base + this.stackID(stack) + \" (restarted)\");\n let done = this.advanceFully(stack, newStacks);\n if (done)\n continue;\n }\n let force = stack.split(), forceBase = base;\n for (let j = 0; force.forceReduce() && j < 10 /* Rec.ForceReduceLimit */; j++) {\n if (verbose)\n console.log(forceBase + this.stackID(force) + \" (via force-reduce)\");\n let done = this.advanceFully(force, newStacks);\n if (done)\n break;\n if (verbose)\n forceBase = this.stackID(force) + \" -> \";\n }\n for (let insert of stack.recoverByInsert(token)) {\n if (verbose)\n console.log(base + this.stackID(insert) + \" (via recover-insert)\");\n this.advanceFully(insert, newStacks);\n }\n if (this.stream.end > stack.pos) {\n if (tokenEnd == stack.pos) {\n tokenEnd++;\n token = 0 /* Term.Err */;\n }\n stack.recoverByDelete(token, tokenEnd);\n if (verbose)\n console.log(base + this.stackID(stack) + ` (via recover-delete ${this.parser.getName(token)})`);\n pushStackDedup(stack, newStacks);\n }\n else if (!finished || finished.score < stack.score) {\n finished = stack;\n }\n }\n return finished;\n }\n // Convert the stack's buffer to a syntax tree.\n stackToTree(stack) {\n stack.close();\n return Tree.build({ buffer: StackBufferCursor.create(stack),\n nodeSet: this.parser.nodeSet,\n topID: this.topTerm,\n maxBufferLength: this.parser.bufferLength,\n reused: this.reused,\n start: this.ranges[0].from,\n length: stack.pos - this.ranges[0].from,\n minRepeatType: this.parser.minRepeatTerm });\n }\n stackID(stack) {\n let id = (stackIDs || (stackIDs = new WeakMap)).get(stack);\n if (!id)\n stackIDs.set(stack, id = String.fromCodePoint(this.nextStackID++));\n return id + stack;\n }\n}\nfunction pushStackDedup(stack, newStacks) {\n for (let i = 0; i < newStacks.length; i++) {\n let other = newStacks[i];\n if (other.pos == stack.pos && other.sameState(stack)) {\n if (newStacks[i].score < stack.score)\n newStacks[i] = stack;\n return;\n }\n }\n newStacks.push(stack);\n}\nclass Dialect {\n constructor(source, flags, disabled) {\n this.source = source;\n this.flags = flags;\n this.disabled = disabled;\n }\n allows(term) { return !this.disabled || this.disabled[term] == 0; }\n}\nconst id = x => x;\n/**\nContext trackers are used to track stateful context (such as\nindentation in the Python grammar, or parent elements in the XML\ngrammar) needed by external tokenizers. You declare them in a\ngrammar file as `@context exportName from \"module\"`.\n\nContext values should be immutable, and can be updated (replaced)\non shift or reduce actions.\n\nThe export used in a `@context` declaration should be of this\ntype.\n*/\nclass ContextTracker {\n /**\n Define a context tracker.\n */\n constructor(spec) {\n this.start = spec.start;\n this.shift = spec.shift || id;\n this.reduce = spec.reduce || id;\n this.reuse = spec.reuse || id;\n this.hash = spec.hash || (() => 0);\n this.strict = spec.strict !== false;\n }\n}\n/**\nHolds the parse tables for a given grammar, as generated by\n`lezer-generator`, and provides [methods](#common.Parser) to parse\ncontent with.\n*/\nclass LRParser extends Parser {\n /**\n @internal\n */\n constructor(spec) {\n super();\n /**\n @internal\n */\n this.wrappers = [];\n if (spec.version != 14 /* File.Version */)\n throw new RangeError(`Parser version (${spec.version}) doesn't match runtime version (${14 /* File.Version */})`);\n let nodeNames = spec.nodeNames.split(\" \");\n this.minRepeatTerm = nodeNames.length;\n for (let i = 0; i < spec.repeatNodeCount; i++)\n nodeNames.push(\"\");\n let topTerms = Object.keys(spec.topRules).map(r => spec.topRules[r][1]);\n let nodeProps = [];\n for (let i = 0; i < nodeNames.length; i++)\n nodeProps.push([]);\n function setProp(nodeID, prop, value) {\n nodeProps[nodeID].push([prop, prop.deserialize(String(value))]);\n }\n if (spec.nodeProps)\n for (let propSpec of spec.nodeProps) {\n let prop = propSpec[0];\n if (typeof prop == \"string\")\n prop = NodeProp[prop];\n for (let i = 1; i < propSpec.length;) {\n let next = propSpec[i++];\n if (next >= 0) {\n setProp(next, prop, propSpec[i++]);\n }\n else {\n let value = propSpec[i + -next];\n for (let j = -next; j > 0; j--)\n setProp(propSpec[i++], prop, value);\n i++;\n }\n }\n }\n this.nodeSet = new NodeSet(nodeNames.map((name, i) => NodeType.define({\n name: i >= this.minRepeatTerm ? undefined : name,\n id: i,\n props: nodeProps[i],\n top: topTerms.indexOf(i) > -1,\n error: i == 0,\n skipped: spec.skippedNodes && spec.skippedNodes.indexOf(i) > -1\n })));\n if (spec.propSources)\n this.nodeSet = this.nodeSet.extend(...spec.propSources);\n this.strict = false;\n this.bufferLength = DefaultBufferLength;\n let tokenArray = decodeArray(spec.tokenData);\n this.context = spec.context;\n this.specializerSpecs = spec.specialized || [];\n this.specialized = new Uint16Array(this.specializerSpecs.length);\n for (let i = 0; i < this.specializerSpecs.length; i++)\n this.specialized[i] = this.specializerSpecs[i].term;\n this.specializers = this.specializerSpecs.map(getSpecializer);\n this.states = decodeArray(spec.states, Uint32Array);\n this.data = decodeArray(spec.stateData);\n this.goto = decodeArray(spec.goto);\n this.maxTerm = spec.maxTerm;\n this.tokenizers = spec.tokenizers.map(value => typeof value == \"number\" ? new TokenGroup(tokenArray, value) : value);\n this.topRules = spec.topRules;\n this.dialects = spec.dialects || {};\n this.dynamicPrecedences = spec.dynamicPrecedences || null;\n this.tokenPrecTable = spec.tokenPrec;\n this.termNames = spec.termNames || null;\n this.maxNode = this.nodeSet.types.length - 1;\n this.dialect = this.parseDialect();\n this.top = this.topRules[Object.keys(this.topRules)[0]];\n }\n createParse(input, fragments, ranges) {\n let parse = new Parse(this, input, fragments, ranges);\n for (let w of this.wrappers)\n parse = w(parse, input, fragments, ranges);\n return parse;\n }\n /**\n Get a goto table entry @internal\n */\n getGoto(state, term, loose = false) {\n let table = this.goto;\n if (term >= table[0])\n return -1;\n for (let pos = table[term + 1];;) {\n let groupTag = table[pos++], last = groupTag & 1;\n let target = table[pos++];\n if (last && loose)\n return target;\n for (let end = pos + (groupTag >> 1); pos < end; pos++)\n if (table[pos] == state)\n return target;\n if (last)\n return -1;\n }\n }\n /**\n Check if this state has an action for a given terminal @internal\n */\n hasAction(state, terminal) {\n let data = this.data;\n for (let set = 0; set < 2; set++) {\n for (let i = this.stateSlot(state, set ? 2 /* ParseState.Skip */ : 1 /* ParseState.Actions */), next;; i += 3) {\n if ((next = data[i]) == 65535 /* Seq.End */) {\n if (data[i + 1] == 1 /* Seq.Next */)\n next = data[i = pair(data, i + 2)];\n else if (data[i + 1] == 2 /* Seq.Other */)\n return pair(data, i + 2);\n else\n break;\n }\n if (next == terminal || next == 0 /* Term.Err */)\n return pair(data, i + 1);\n }\n }\n return 0;\n }\n /**\n @internal\n */\n stateSlot(state, slot) {\n return this.states[(state * 6 /* ParseState.Size */) + slot];\n }\n /**\n @internal\n */\n stateFlag(state, flag) {\n return (this.stateSlot(state, 0 /* ParseState.Flags */) & flag) > 0;\n }\n /**\n @internal\n */\n validAction(state, action) {\n return !!this.allActions(state, a => a == action ? true : null);\n }\n /**\n @internal\n */\n allActions(state, action) {\n let deflt = this.stateSlot(state, 4 /* ParseState.DefaultReduce */);\n let result = deflt ? action(deflt) : undefined;\n for (let i = this.stateSlot(state, 1 /* ParseState.Actions */); result == null; i += 3) {\n if (this.data[i] == 65535 /* Seq.End */) {\n if (this.data[i + 1] == 1 /* Seq.Next */)\n i = pair(this.data, i + 2);\n else\n break;\n }\n result = action(pair(this.data, i + 1));\n }\n return result;\n }\n /**\n Get the states that can follow this one through shift actions or\n goto jumps. @internal\n */\n nextStates(state) {\n let result = [];\n for (let i = this.stateSlot(state, 1 /* ParseState.Actions */);; i += 3) {\n if (this.data[i] == 65535 /* Seq.End */) {\n if (this.data[i + 1] == 1 /* Seq.Next */)\n i = pair(this.data, i + 2);\n else\n break;\n }\n if ((this.data[i + 2] & (65536 /* Action.ReduceFlag */ >> 16)) == 0) {\n let value = this.data[i + 1];\n if (!result.some((v, i) => (i & 1) && v == value))\n result.push(this.data[i], value);\n }\n }\n return result;\n }\n /**\n Configure the parser. Returns a new parser instance that has the\n given settings modified. Settings not provided in `config` are\n kept from the original parser.\n */\n configure(config) {\n // Hideous reflection-based kludge to make it easy to create a\n // slightly modified copy of a parser.\n let copy = Object.assign(Object.create(LRParser.prototype), this);\n if (config.props)\n copy.nodeSet = this.nodeSet.extend(...config.props);\n if (config.top) {\n let info = this.topRules[config.top];\n if (!info)\n throw new RangeError(`Invalid top rule name ${config.top}`);\n copy.top = info;\n }\n if (config.tokenizers)\n copy.tokenizers = this.tokenizers.map(t => {\n let found = config.tokenizers.find(r => r.from == t);\n return found ? found.to : t;\n });\n if (config.specializers) {\n copy.specializers = this.specializers.slice();\n copy.specializerSpecs = this.specializerSpecs.map((s, i) => {\n let found = config.specializers.find(r => r.from == s.external);\n if (!found)\n return s;\n let spec = Object.assign(Object.assign({}, s), { external: found.to });\n copy.specializers[i] = getSpecializer(spec);\n return spec;\n });\n }\n if (config.contextTracker)\n copy.context = config.contextTracker;\n if (config.dialect)\n copy.dialect = this.parseDialect(config.dialect);\n if (config.strict != null)\n copy.strict = config.strict;\n if (config.wrap)\n copy.wrappers = copy.wrappers.concat(config.wrap);\n if (config.bufferLength != null)\n copy.bufferLength = config.bufferLength;\n return copy;\n }\n /**\n Tells you whether any [parse wrappers](#lr.ParserConfig.wrap)\n are registered for this parser.\n */\n hasWrappers() {\n return this.wrappers.length > 0;\n }\n /**\n Returns the name associated with a given term. This will only\n work for all terms when the parser was generated with the\n `--names` option. By default, only the names of tagged terms are\n stored.\n */\n getName(term) {\n return this.termNames ? this.termNames[term] : String(term <= this.maxNode && this.nodeSet.types[term].name || term);\n }\n /**\n The eof term id is always allocated directly after the node\n types. @internal\n */\n get eofTerm() { return this.maxNode + 1; }\n /**\n The type of top node produced by the parser.\n */\n get topNode() { return this.nodeSet.types[this.top[1]]; }\n /**\n @internal\n */\n dynamicPrecedence(term) {\n let prec = this.dynamicPrecedences;\n return prec == null ? 0 : prec[term] || 0;\n }\n /**\n @internal\n */\n parseDialect(dialect) {\n let values = Object.keys(this.dialects), flags = values.map(() => false);\n if (dialect)\n for (let part of dialect.split(\" \")) {\n let id = values.indexOf(part);\n if (id >= 0)\n flags[id] = true;\n }\n let disabled = null;\n for (let i = 0; i < values.length; i++)\n if (!flags[i]) {\n for (let j = this.dialects[values[i]], id; (id = this.data[j++]) != 65535 /* Seq.End */;)\n (disabled || (disabled = new Uint8Array(this.maxTerm + 1)))[id] = 1;\n }\n return new Dialect(dialect, flags, disabled);\n }\n /**\n Used by the output of the parser generator. Not available to\n user code. @hide\n */\n static deserialize(spec) {\n return new LRParser(spec);\n }\n}\nfunction pair(data, off) { return data[off] | (data[off + 1] << 16); }\nfunction findFinished(stacks) {\n let best = null;\n for (let stack of stacks) {\n let stopped = stack.p.stoppedAt;\n if ((stack.pos == stack.p.stream.end || stopped != null && stack.pos > stopped) &&\n stack.p.parser.stateFlag(stack.state, 2 /* StateFlag.Accepting */) &&\n (!best || best.score < stack.score))\n best = stack;\n }\n return best;\n}\nfunction getSpecializer(spec) {\n if (spec.external) {\n let mask = spec.extend ? 1 /* Specialize.Extend */ : 0 /* Specialize.Specialize */;\n return (value, stack) => (spec.external(value, stack) << 1) | mask;\n }\n return spec.get;\n}\n\nexport { ContextTracker, ExternalTokenizer, InputStream, LRParser, LocalTokenGroup, Stack };\n","const C = \"\\u037c\"\nconst COUNT = typeof Symbol == \"undefined\" ? \"__\" + C : Symbol.for(C)\nconst SET = typeof Symbol == \"undefined\" ? \"__styleSet\" + Math.floor(Math.random() * 1e8) : Symbol(\"styleSet\")\nconst top = typeof globalThis != \"undefined\" ? globalThis : typeof window != \"undefined\" ? window : {}\n\n// :: - Style modules encapsulate a set of CSS rules defined from\n// JavaScript. Their definitions are only available in a given DOM\n// root after it has been _mounted_ there with `StyleModule.mount`.\n//\n// Style modules should be created once and stored somewhere, as\n// opposed to re-creating them every time you need them. The amount of\n// CSS rules generated for a given DOM root is bounded by the amount\n// of style modules that were used. So to avoid leaking rules, don't\n// create these dynamically, but treat them as one-time allocations.\nexport class StyleModule {\n // :: (Object + + +
    +

    Simple plots using mybinder.org

    +

    + Activating this page will connect to the public my binder service at + https://mybinder.org, launch a server and connect to a `python3` kernel. +

    +
    +
    + 
    +import numpy as np
+import matplotlib.pyplot as plt
+%matplotlib inline
+
+fig, ax = plt.subplots()
+ax.scatter(*np.random.randn(2, 100), c=np.random.randn(100))
+ax.set(title="Wow, a pyhton plot on my webpage!")
+
    +
    + + diff --git a/pr-preview/pr-707/index.html b/pr-preview/pr-707/index.html new file mode 100644 index 00000000..e381f226 --- /dev/null +++ b/pr-preview/pr-707/index.html @@ -0,0 +1,266 @@ + + + + Simple Thebe Demos + + + + + + + + + + + + + + + + +
    +
    +

    Simple Demos

    +
    +

    + This is designed to take a simple static html website (like this one) and turn any code it + finds into interactive editors. This page is intended to be a demo of that functionality + so is more descriptive and uses + jupyterlite. +

    +

    + For additional, very static and more specific, html examples, see the table + at the bottom of the page. +

    +
    +
    +

    Configuration

    +

    + thebe can be configured by adding a script tag to your web page with an + options object, that will be loaded by the `bootstrap` function. +

    +

    + By default this demo used the pyodide WASM kernel with + jupyterlite but you can also configure it to use + a local jupyter server or the + mybinder.org service. +

    +

    Configuration for jupyterlite is simply:

    + 
    +<‍script type="text/x-thebe-config">
+  {
+    useBinder: false,
+    useJupyterLite: true,
+    mountActivateWidget: true,
+    mountStatusWidget: true,
+  }
+<‍/script>
    +
    +

    Thebe's Default UI

    +

    + By adding the following tags to the page, once loaded, thebe will add default + UI elements to the page (these are customisable by css). +

    + 
    +  <‍div class="thebe-activate"><‍/div>
+  <‍div class="thebe-status"><‍/div>
    +

    These should appear below 👇

    +
    +
    +
    +
    +

    + The following code snippet has been marked as + <‍pre data-executable="true" data-language="python"><‍/pre> meaning + thebe will turn it into an editor when activated! +

    +

    + Note: this is quite a lot of code, thanks because it's producing the excellent Lorentz + Attractor plot - taken from the + ipywidgets documentation. +

    +
    + 
    +%pip install ipywidgets
+
+import numpy as np
+import matplotlib.pyplot as plt
+%matplotlib inline
+
+from ipywidgets import interact, interactive
+from IPython.display import clear_output, display, HTML
+
+import numpy as np
+from scipy import integrate
+
+from matplotlib import pyplot as plt
+from mpl_toolkits.mplot3d import Axes3D
+from matplotlib.colors import cnames
+from matplotlib import animation
+
+def solve_lorenz(
+  N=10, angle=0.0, max_time=4.0, 
+  sigma=10.0, beta=8./3, rho=28.0):
+
+    fig = plt.figure()
+    ax = fig.add_axes([0, 0, 1, 1], projection='3d')
+    ax.axis('off')
+
+    # prepare the axes limits
+    ax.set_xlim((-25, 25))
+    ax.set_ylim((-35, 35))
+    ax.set_zlim((5, 55))
+    
+    def lorenz_deriv(x_y_z, t0, sigma=sigma, beta=beta, rho=rho):
+        """Compute the time-derivative of a Lorenz system."""
+        x, y, z = x_y_z
+        return [sigma * (y - x), x * (rho - z) - y, x * y - beta * z]
+
+    # Choose random starting points, uniformly distributed from -15 to 15
+    np.random.seed(1)
+    x0 = -15 + 30 * np.random.random((N, 3))
+
+    # Solve for the trajectories
+    t = np.linspace(0, max_time, int(250*max_time))
+    x_t = np.asarray([integrate.odeint(lorenz_deriv, x0i, t)
+                      for x0i in x0])
+    
+    # choose a different color for each trajectory
+    colors = plt.cm.viridis(np.linspace(0, 1, N))
+
+    for i in range(N):
+        x, y, z = x_t[i,:,:].T
+        lines = ax.plot(x, y, z, '-', c=colors[i])
+        plt.setp(lines, linewidth=2)
+
+    ax.view_init(30, angle)
+    plt.show()
+
+    return t, x_t
+
+w = interactive(solve_lorenz, angle=(0.,360.), max_time=(0.1, 4.0), 
+                N=(0,50), sigma=(0.0,50.0), rho=(0.0,50.0))
+display(w)
+
    +
    +
    +

    Other static examples

    +

    + Follow the links in the table to check out minimal examples of thebe in + different configurations, in each case "view source" to see how each is configured. +

    + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
    demodescription
    Running on a local jupyter server + simple plots +
    ipywidgets examples
    math rendering
    Using JupyterLite with the pyodide kernelsimple plots
    ipywidget examples
    Running on mybinder.orgsimple Plots
    ipywidgets examples
    +
    +
    +

    Running a local jupyter server

    +

    + Some of the demos require you to run a jupyter server on your machine, which is pretty + easy if you are a regular jupyter user. +

    +

    + If needed, setup a new virtual environment using the + requirements.txt file here. +

    + 
    +python -m venv thebe-env
+source thebe-env/bin/activate
+python -m pip install -r requirements.txt
+python -m pip install jupyterlab
    +

    Then start a jupyter server using the command:

    + 
    +jupyter lab --NotebookApp.token=test-secret --NotebookApp.allow_origin='*'
    +
    +
    + + diff --git a/pr-preview/pr-707/index.js b/pr-preview/pr-707/index.js new file mode 100644 index 00000000..96a308a1 --- /dev/null +++ b/pr-preview/pr-707/index.js @@ -0,0 +1,3 @@ +/*! 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0!==i?i:[];return-1===o.indexOf(r)&&o.push(r),this._msgIdToDisplayIds.set(r,o),!1}_clearSocket(){null!==this._ws&&(this._ws.onopen=this._noOp,this._ws.onclose=this._noOp,this._ws.onerror=this._noOp,this._ws.onmessage=this._noOp,this._ws.close(),this._ws=null)}_updateStatus(e){this._status!==e&&"dead"!==this._status&&(this._status=e,_.logKernelStatus(this),this._statusChanged.emit(e),"dead"===e&&this.dispose())}_sendPending(){for(;"connected"===this.connectionStatus&&this._kernelSession!==v&&this._pendingMessages.length>0;)this._sendMessage(this._pendingMessages[0],!1),this._pendingMessages.shift()}_clearKernelState(){this._kernelSession="",this._pendingMessages=[],this._futures.forEach((e=>{e.dispose()})),this._comms.forEach((e=>{e.dispose()})),this._msgChain=Promise.resolve(),this._futures=new Map,this._comms=new Map,this._displayIdToParentIds.clear(),this._msgIdToDisplayIds.clear()}_assertCurrentMessage(e){if(this._errorIfDisposed(),e.header.session!==this._kernelSession)throw new Error(`Canceling handling of old message: ${e.header.msg_type}`)}async _handleCommOpen(e){this._assertCurrentMessage(e);const t=e.content,n=new d.CommHandler(t.target_name,t.comm_id,this,(()=>{this._unregisterComm(t.comm_id)}));this._comms.set(t.comm_id,n);try{const i=await _.loadObject(t.target_name,t.target_module,this._targetRegistry);await i(n,e)}catch(e){throw n.close(),console.error("Exception opening new comm"),e}}async _handleCommClose(e){this._assertCurrentMessage(e);const t=e.content,n=this._comms.get(t.comm_id);if(!n)return void console.error("Comm not found for comm id "+t.comm_id);this._unregisterComm(n.commId);const i=n.onClose;i&&await i(e),n.dispose()}async _handleCommMsg(e){this._assertCurrentMessage(e);const t=e.content,n=this._comms.get(t.comm_id);if(!n)return;const i=n.onMsg;i&&await i(e)}_unregisterComm(e){this._comms.delete(e)}_updateConnectionStatus(e){if(this._connectionStatus!==e){if(this._connectionStatus=e,"connecting"!==e&&(this._reconnectAttempt=0,clearTimeout(this._reconnectTimeout)),"dead"!==this.status)if("connected"===e){let e=this._kernelSession===v,t=this.requestKernelInfo(),n=!1,i=()=>{n||(n=!0,e&&this._kernelSession===v&&(this._kernelSession=""),clearTimeout(r),this._pendingMessages.length>0&&this._sendPending())};t.then(i);let r=setTimeout(i,3e3)}else this._updateStatus("unknown");this._connectionStatusChanged.emit(e)}}async _handleMessage(e){var t,n;let i=!1;if(e.parent_header&&"iopub"===e.channel&&(c.isDisplayDataMsg(e)||c.isUpdateDisplayDataMsg(e)||c.isExecuteResultMsg(e))){const n=(null!==(t=e.content.transient)&&void 0!==t?t:{}).display_id;n&&(i=await this._handleDisplayId(n,e),this._assertCurrentMessage(e))}if(!i&&e.parent_header){const t=e.parent_header,i=null===(n=this._futures)||void 0===n?void 0:n.get(t.msg_id);if(i)await i.handleMsg(e),this._assertCurrentMessage(e);else{const n=t.session===this.clientId;"iopub"!==e.channel&&n&&this._unhandledMessage.emit(e)}}if("iopub"===e.channel){switch(e.header.msg_type){case"status":{const t=e.content.execution_state;"restarting"===t&&Promise.resolve().then((async()=>{this._updateStatus("autorestarting"),this._clearKernelState(),await this.reconnect()})),this._updateStatus(t);break}case"comm_open":this.handleComms&&await this._handleCommOpen(e);break;case"comm_msg":this.handleComms&&await this._handleCommMsg(e);break;case"comm_close":this.handleComms&&await this._handleCommClose(e)}this.isDisposed||(this._assertCurrentMessage(e),this._iopubMessage.emit(e))}}_reconnect(){if(this._errorIfDisposed(),clearTimeout(this._reconnectTimeout),this._reconnectAttempt{if(t){if("undefined"==typeof requirejs)throw new Error("requirejs not found");requirejs([t],(n=>{void 0===n[e]?r(new Error(`Object '${e}' not found in module '${t}'`)):i(n[e])}),r)}else(null==n?void 0:n[e])?i(n[e]):r(new Error(`Object '${e}' not found in registry`))}))},e.getRandomIntInclusive=function(e,t){return e=Math.ceil(e),t=Math.floor(t),Math.floor(Math.random()*(t-e+1))+e}}(_||(_={}))},79178:function(e,t,n){"use strict";var i=this&&this.__createBinding||(Object.create?function(e,t,n,i){void 0===i&&(i=n);var r=Object.getOwnPropertyDescriptor(t,n);r&&!("get"in r?!t.__esModule:r.writable||r.configurable)||(r={enumerable:!0,get:function(){return t[n]}}),Object.defineProperty(e,i,r)}:function(e,t,n,i){void 0===i&&(i=n),e[i]=t[n]}),r=this&&this.__setModuleDefault||(Object.create?function(e,t){Object.defineProperty(e,"default",{enumerable:!0,value:t})}:function(e,t){e.default=t}),s=this&&this.__importStar||function(e){if(e&&e.__esModule)return e;var t={};if(null!=e)for(var n in e)"default"!==n&&Object.prototype.hasOwnProperty.call(e,n)&&i(t,e,n);return r(t,e),t};Object.defineProperty(t,"__esModule",{value:!0}),t.KernelShellFutureHandler=t.KernelControlFutureHandler=t.KernelFutureHandler=void 0;const o=n(65168),a=n(34643),l=s(n(41632));class u extends a.DisposableDelegate{constructor(e,t,n,i,r){super(e),this._status=0,this._stdin=d.noOp,this._iopub=d.noOp,this._reply=d.noOp,this._done=new o.PromiseDelegate,this._hooks=new d.HookList,this._disposeOnDone=!0,this._msg=t,n||this._setFlag(d.KernelFutureFlag.GotReply),this._disposeOnDone=i,this._kernel=r}get msg(){return this._msg}get done(){return this._done.promise}get onReply(){return this._reply}set onReply(e){this._reply=e}get onIOPub(){return this._iopub}set onIOPub(e){this._iopub=e}get onStdin(){return this._stdin}set onStdin(e){this._stdin=e}registerMessageHook(e){if(this.isDisposed)throw new Error("Kernel future is disposed");this._hooks.add(e)}removeMessageHook(e){this.isDisposed||this._hooks.remove(e)}sendInputReply(e,t){this._kernel.sendInputReply(e,t)}dispose(){this._stdin=d.noOp,this._iopub=d.noOp,this._reply=d.noOp,this._hooks=null,this._testFlag(d.KernelFutureFlag.IsDone)||(this._done.promise.catch((()=>{})),this._done.reject(new Error(`Canceled future for ${this.msg.header.msg_type} message before replies were done`))),super.dispose()}async handleMsg(e){switch(e.channel){case"control":case"shell":e.channel===this.msg.channel&&e.parent_header.msg_id===this.msg.header.msg_id&&await this._handleReply(e);break;case"stdin":await this._handleStdin(e);break;case"iopub":await this._handleIOPub(e)}}async _handleReply(e){const t=this._reply;t&&await t(e),this._replyMsg=e,this._setFlag(d.KernelFutureFlag.GotReply),this._testFlag(d.KernelFutureFlag.GotIdle)&&this._handleDone()}async _handleStdin(e){this._kernel.hasPendingInput=!0;const t=this._stdin;t&&await t(e)}async _handleIOPub(e){const t=await this._hooks.process(e),n=this._iopub;t&&n&&await n(e),l.isStatusMsg(e)&&"idle"===e.content.execution_state&&(this._setFlag(d.KernelFutureFlag.GotIdle),this._testFlag(d.KernelFutureFlag.GotReply)&&this._handleDone())}_handleDone(){this._testFlag(d.KernelFutureFlag.IsDone)||(this._setFlag(d.KernelFutureFlag.IsDone),this._done.resolve(this._replyMsg),this._disposeOnDone&&this.dispose())}_testFlag(e){return 0!=(this._status&e)}_setFlag(e){this._status|=e}}var d;t.KernelFutureHandler=u,t.KernelControlFutureHandler=class extends u{},t.KernelShellFutureHandler=class extends u{},function(e){e.noOp=()=>{};const t="function"==typeof requestAnimationFrame?requestAnimationFrame:setImmediate;let n;e.HookList=class{constructor(){this._hooks=[]}add(e){this.remove(e),this._hooks.push(e)}remove(e){const t=this._hooks.indexOf(e);t>=0&&(this._hooks[t]=null,this._scheduleCompact())}async process(e){await this._processing;const t=new o.PromiseDelegate;let n;this._processing=t.promise;for(let i=this._hooks.length-1;i>=0;i--){const r=this._hooks[i];if(null!==r){try{n=await r(e)}catch(e){n=!0,console.error(e)}if(!1===n)return t.resolve(void 0),!1}}return t.resolve(void 0),!0}_scheduleCompact(){this._compactScheduled||(this._compactScheduled=!0,t((()=>{this._processing=this._processing.then((()=>{this._compactScheduled=!1,this._compact()}))})))}_compact(){let e=0;for(let t=0,n=this._hooks.length;t{"use strict";Object.defineProperty(t,"__esModule",{value:!0})},72810:(e,t,n)=>{"use strict";Object.defineProperty(t,"__esModule",{value:!0}),t.KernelManager=void 0;const i=n(59033),r=n(60544),s=n(16914),o=n(92918),a=n(60925),l=n(82094);class u extends o.BaseManager{constructor(e={}){var t;super(e),this._isReady=!1,this._kernelConnections=new Set,this._models=new Map,this._runningChanged=new r.Signal(this),this._connectionFailure=new r.Signal(this),this._pollModels=new i.Poll({auto:!1,factory:()=>this.requestRunning(),frequency:{interval:1e4,backoff:!0,max:3e5},name:"@jupyterlab/services:KernelManager#models",standby:null!==(t=e.standby)&&void 0!==t?t:"when-hidden"}),this._ready=(async()=>{await this._pollModels.start(),await this._pollModels.tick,this._isReady=!0})()}get isReady(){return this._isReady}get ready(){return this._ready}get runningChanged(){return this._runningChanged}get connectionFailure(){return this._connectionFailure}dispose(){this.isDisposed||(this._models.clear(),this._kernelConnections.forEach((e=>e.dispose())),this._pollModels.dispose(),super.dispose())}connectTo(e){var t;const{id:n}=e.model;let i=null===(t=e.handleComms)||void 0===t||t;if(void 0===e.handleComms)for(const e of this._kernelConnections)if(e.id===n&&e.handleComms){i=!1;break}const r=new l.KernelConnection({handleComms:i,...e,serverSettings:this.serverSettings});return this._onStarted(r),this._models.has(n)||this.refreshRunning().catch((()=>{})),r}running(){return this._models.values()}async refreshRunning(){await this._pollModels.refresh(),await this._pollModels.tick}async startNew(e={},t={}){const n=await(0,a.startNew)(e,this.serverSettings);return this.connectTo({...t,model:n})}async shutdown(e){await(0,a.shutdownKernel)(e,this.serverSettings),await this.refreshRunning()}async shutdownAll(){await this.refreshRunning(),await Promise.all([...this._models.keys()].map((e=>(0,a.shutdownKernel)(e,this.serverSettings)))),await this.refreshRunning()}async findById(e){return this._models.has(e)||await this.refreshRunning(),this._models.get(e)}async requestRunning(){var e,t;let n;try{n=await(0,a.listRunning)(this.serverSettings)}catch(n){throw(n instanceof s.ServerConnection.NetworkError||503===(null===(e=n.response)||void 0===e?void 0:e.status)||424===(null===(t=n.response)||void 0===t?void 0:t.status))&&this._connectionFailure.emit(n),n}this.isDisposed||this._models.size===n.length&&n.every((e=>{const t=this._models.get(e.id);return!!t&&t.connections===e.connections&&t.execution_state===e.execution_state&&t.last_activity===e.last_activity&&t.name===e.name&&t.reason===e.reason&&t.traceback===e.traceback}))||(this._models=new Map(n.map((e=>[e.id,e]))),this._kernelConnections.forEach((e=>{this._models.has(e.id)||e.handleShutdown()})),this._runningChanged.emit(n))}_onStarted(e){this._kernelConnections.add(e),e.statusChanged.connect(this._onStatusChanged,this),e.disposed.connect(this._onDisposed,this)}_onDisposed(e){this._kernelConnections.delete(e),this.refreshRunning().catch((()=>{}))}_onStatusChanged(e,t){"dead"===t&&this.refreshRunning().catch((()=>{}))}}t.KernelManager=u,function(e){e.NoopManager=class extends e{constructor(){super(...arguments),this._readyPromise=new Promise((()=>{}))}get isActive(){return!1}get parentReady(){return super.ready}async startNew(e={},t={}){return Promise.reject(new Error("Not implemented in no-op Kernel Manager"))}connectTo(e){throw new Error("Not 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0!==o?o:{}}},t.isStreamMsg=function(e){return"stream"===e.header.msg_type},t.isDisplayDataMsg=function(e){return"display_data"===e.header.msg_type},t.isUpdateDisplayDataMsg=function(e){return"update_display_data"===e.header.msg_type},t.isExecuteInputMsg=function(e){return"execute_input"===e.header.msg_type},t.isExecuteResultMsg=function(e){return"execute_result"===e.header.msg_type},t.isErrorMsg=function(e){return"error"===e.header.msg_type},t.isStatusMsg=function(e){return"status"===e.header.msg_type},t.isClearOutputMsg=function(e){return"clear_output"===e.header.msg_type},t.isDebugEventMsg=function(e){return"debug_event"===e.header.msg_type},t.isCommOpenMsg=function(e){return"comm_open"===e.header.msg_type},t.isCommCloseMsg=function(e){return"comm_close"===e.header.msg_type},t.isCommMsgMsg=function(e){return"comm_msg"===e.header.msg_type},t.isInfoRequestMsg=function(e){return"kernel_info_request"===e.header.msg_type},t.isExecuteReplyMsg=function(e){return"execute_reply"===e.header.msg_type},t.isDebugRequestMsg=function(e){return"debug_request"===e.header.msg_type},t.isDebugReplyMsg=function(e){return"debug_reply"===e.header.msg_type},t.isInputRequestMsg=function(e){return"input_request"===e.header.msg_type},t.isInputReplyMsg=function(e){return"input_reply"===e.header.msg_type},(t.supportedKernelWebSocketProtocols||(t.supportedKernelWebSocketProtocols={})).v1KernelWebsocketJupyterOrg="v1.kernel.websocket.jupyter.org"},60925:(e,t,n)=>{"use 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o=r.URLExt.join(n.baseUrl,t.KERNEL_SERVICE_URL,encodeURIComponent(e),"restart"),a=await i.ServerConnection.makeRequest(o,{method:"POST"},n);if(200!==a.status)throw await i.ServerConnection.ResponseError.create(a);const l=await a.json();(0,s.validateModel)(l)},t.interruptKernel=async function(e,n=i.ServerConnection.makeSettings()){const s=r.URLExt.join(n.baseUrl,t.KERNEL_SERVICE_URL,encodeURIComponent(e),"interrupt"),o=await i.ServerConnection.makeRequest(s,{method:"POST"},n);if(204!==o.status)throw await i.ServerConnection.ResponseError.create(o)},t.shutdownKernel=async function(e,n=i.ServerConnection.makeSettings()){const s=r.URLExt.join(n.baseUrl,t.KERNEL_SERVICE_URL,encodeURIComponent(e)),o=await i.ServerConnection.makeRequest(s,{method:"DELETE"},n);if(404===o.status){const t=`The kernel "${e}" does not exist on the server`;console.warn(t)}else if(204!==o.status)throw await i.ServerConnection.ResponseError.create(o)},t.getKernelModel=async 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r(t,e),t};Object.defineProperty(t,"__esModule",{value:!0}),t.deserialize=t.serialize=void 0;const o=s(n(41632));var a;t.serialize=function(e,t=""){return t===o.supportedKernelWebSocketProtocols.v1KernelWebsocketJupyterOrg?a.serializeV1KernelWebsocketJupyterOrg(e):a.serializeDefault(e)},t.deserialize=function(e,t=""){return t===o.supportedKernelWebSocketProtocols.v1KernelWebsocketJupyterOrg?a.deserializeV1KernelWebsocketJupyterOrg(e):a.deserializeDefault(e)},function(e){e.deserializeV1KernelWebsocketJupyterOrg=function(e){let t;const n=new DataView(e),i=Number(n.getBigUint64(0,!0));let r=[];for(let e=0;e{"use strict";Object.defineProperty(t,"__esModule",{value:!0}),t.validateModels=t.validateModel=t.validateMessage=void 0;const i=n(68193),r=["username","version","session","msg_id","msg_type"],s={stream:{name:"string",text:"string"},display_data:{data:"object",metadata:"object"},execute_input:{code:"string",execution_count:"number"},execute_result:{execution_count:"number",data:"object",metadata:"object"},error:{ename:"string",evalue:"string",traceback:"object"},status:{execution_state:["string",["starting","idle","busy","restarting","dead"]]},clear_output:{wait:"boolean"},comm_open:{comm_id:"string",target_name:"string",data:"object"},comm_msg:{comm_id:"string",data:"object"},comm_close:{comm_id:"string"},shutdown_reply:{restart:"boolean"}};function o(e){(0,i.validateProperty)(e,"name","string"),(0,i.validateProperty)(e,"id","string")}t.validateMessage=function(e){(0,i.validateProperty)(e,"metadata","object"),(0,i.validateProperty)(e,"content","object"),(0,i.validateProperty)(e,"channel","string"),function(e){for(let t=0;to(e)))}},55312:function(e,t,n){"use strict";var i=this&&this.__createBinding||(Object.create?function(e,t,n,i){void 0===i&&(i=n);var r=Object.getOwnPropertyDescriptor(t,n);r&&!("get"in r?!t.__esModule:r.writable||r.configurable)||(r={enumerable:!0,get:function(){return t[n]}}),Object.defineProperty(e,i,r)}:function(e,t,n,i){void 0===i&&(i=n),e[i]=t[n]}),r=this&&this.__setModuleDefault||(Object.create?function(e,t){Object.defineProperty(e,"default",{enumerable:!0,value:t})}:function(e,t){e.default=t}),s=this&&this.__importStar||function(e){if(e&&e.__esModule)return e;var t={};if(null!=e)for(var n in e)"default"!==n&&Object.prototype.hasOwnProperty.call(e,n)&&i(t,e,n);return r(t,e),t},o=this&&this.__exportStar||function(e,t){for(var n in e)"default"===n||Object.prototype.hasOwnProperty.call(t,n)||i(t,e,n)};Object.defineProperty(t,"__esModule",{value:!0}),t.KernelSpecAPI=t.KernelSpec=void 0;const a=s(n(20523));t.KernelSpec=a;const l=s(n(47352));t.KernelSpecAPI=l,o(n(73973),t)},20523:(e,t)=>{"use 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l.Signal(this),this._specs=null,this._specsChanged=new l.Signal(this),this._ready=Promise.all([this.requestSpecs()]).then((e=>{})).catch((e=>{})).then((()=>{this.isDisposed||(this._isReady=!0)})),this._pollSpecs=new a.Poll({auto:!1,factory:()=>this.requestSpecs(),frequency:{interval:61e3,backoff:!0,max:3e5},name:"@jupyterlab/services:KernelSpecManager#specs",standby:null!==(t=e.standby)&&void 0!==t?t:"when-hidden"}),this.ready.then((()=>{this._pollSpecs.start()}))}get isReady(){return this._isReady}get ready(){return this._ready}get specs(){return this._specs}get specsChanged(){return this._specsChanged}get connectionFailure(){return this._connectionFailure}dispose(){this._pollSpecs.dispose(),super.dispose()}async refreshSpecs(){await this._pollSpecs.refresh(),await this._pollSpecs.tick}async requestSpecs(){const e=await u.getSpecs(this.serverSettings);this.isDisposed||o.JSONExt.deepEqual(e,this._specs)||(this._specs=e,this._specsChanged.emit(e))}}t.KernelSpecManager=c},47352:(e,t,n)=>{"use strict";Object.defineProperty(t,"__esModule",{value:!0}),t.getSpecs=void 0;const i=n(22700),r=n(80007),s=n(18920);t.getSpecs=async function(e=i.ServerConnection.makeSettings()){const t=s.URLExt.join(e.baseUrl,"api/kernelspecs"),n=await i.ServerConnection.makeRequest(t,{},e);if(200!==n.status)throw await i.ServerConnection.ResponseError.create(n);const o=await n.json();return(0,r.validateSpecModels)(o)}},80007:(e,t,n)=>{"use strict";Object.defineProperty(t,"__esModule",{value:!0}),t.validateSpecModels=t.validateSpecModel=void 0;const i=n(68193);function r(e){const t=e.spec;if(!t)throw new Error("Invalid kernel spec");(0,i.validateProperty)(e,"name","string"),(0,i.validateProperty)(e,"resources","object"),(0,i.validateProperty)(t,"language","string"),(0,i.validateProperty)(t,"display_name","string"),(0,i.validateProperty)(t,"argv","array");let n=null;t.hasOwnProperty("metadata")&&((0,i.validateProperty)(t,"metadata","object"),n=t.metadata);let r=null;return t.hasOwnProperty("env")&&((0,i.validateProperty)(t,"env","object"),r=t.env),{name:e.name,resources:e.resources,language:t.language,display_name:t.display_name,argv:t.argv,metadata:n,env:r}}t.validateSpecModel=r,t.validateSpecModels=function(e){if(!e.hasOwnProperty("kernelspecs"))throw new Error("No kernelspecs found");let t=Object.keys(e.kernelspecs);const n=Object.create(null);let i=e.default;for(let i=0;i{"use strict";Object.defineProperty(t,"__esModule",{value:!0}),t.ServiceManager=void 0;const i=n(60544),r=n(81611),s=n(57593),o=n(93354),a=n(10582),l=n(55312),u=n(54933),d=n(22700),c=n(67054),h=n(6052),p=n(98235),g=n(67523),f=n(10087);t.ServiceManager=class{constructor(e={}){var t,n;this._isDisposed=!1,this._connectionFailure=new i.Signal(this),this._isReady=!1;const m=e.defaultDrive,v=null!==(t=e.serverSettings)&&void 0!==t?t:d.ServerConnection.makeSettings(),b={defaultDrive:m,serverSettings:v,standby:null!==(n=e.standby)&&void 0!==n?n:"when-hidden"};this.serverSettings=v,this.contents=e.contents||new s.ContentsManager(b),this.events=e.events||new o.EventManager(b),this.kernels=e.kernels||new a.KernelManager(b),this.sessions=e.sessions||new c.SessionManager({...b,kernelManager:this.kernels}),this.settings=e.settings||new h.SettingManager(b),this.terminals=e.terminals||new p.TerminalManager(b),this.builder=e.builder||new r.BuildManager(b),this.workspaces=e.workspaces||new f.WorkspaceManager(b),this.nbconvert=e.nbconvert||new u.NbConvertManager(b),this.kernelspecs=e.kernelspecs||new l.KernelSpecManager(b),this.user=e.user||new g.UserManager(b),this.kernelspecs.connectionFailure.connect(this._onConnectionFailure,this),this.sessions.connectionFailure.connect(this._onConnectionFailure,this),this.terminals.connectionFailure.connect(this._onConnectionFailure,this);const _=[this.sessions.ready,this.kernelspecs.ready];this.terminals.isAvailable()&&_.push(this.terminals.ready),this._readyPromise=Promise.all(_).then((()=>{this._isReady=!0}))}get connectionFailure(){return this._connectionFailure}get isDisposed(){return this._isDisposed}dispose(){this.isDisposed||(this._isDisposed=!0,i.Signal.clearData(this),this.contents.dispose(),this.events.dispose(),this.sessions.dispose(),this.terminals.dispose())}get isReady(){return this._isReady}get ready(){return this._readyPromise}_onConnectionFailure(e,t){this._connectionFailure.emit(t)}}},54933:(e,t,n)=>{"use strict";Object.defineProperty(t,"__esModule",{value:!0}),t.NbConvertManager=void 0;const i=n(18920),r=n(22700),s=n(65168);t.NbConvertManager=class{constructor(e={}){var t;this._exportFormats=null,this.serverSettings=null!==(t=e.serverSettings)&&void 0!==t?t:r.ServerConnection.makeSettings()}async fetchExportFormats(){this._requestingFormats=new s.PromiseDelegate,this._exportFormats=null;const e=this.serverSettings.baseUrl,t=i.URLExt.join(e,"api/nbconvert"),{serverSettings:n}=this,o=await r.ServerConnection.makeRequest(t,{},n);if(200!==o.status)throw await r.ServerConnection.ResponseError.create(o);const a=await o.json(),l={};return Object.keys(a).forEach((function(e){const t=a[e].output_mimetype;l[e]={output_mimetype:t}})),this._exportFormats=l,this._requestingFormats.resolve(l),l}async getExportFormats(e=!0){return this._requestingFormats?this._requestingFormats.promise:e||!this._exportFormats?await this.fetchExportFormats():this._exportFormats}}},22700:(e,t,n)=>{"use strict";Object.defineProperty(t,"__esModule",{value:!0}),t.ServerConnection=void 0;const i=n(18920);let r;var s,o;r="undefined"==typeof window?n(32195):WebSocket,function(e){e.makeSettings=function(e){return o.makeSettings(e)},e.makeRequest=function(e,t,n){return o.handleRequest(e,t,n)};class t extends Error{static async create(e){try{const n=await e.json(),{message:i,traceback:r}=n;return r&&console.error(r),new t(e,null!=i?i:t._defaultMessage(e),null!=r?r:"")}catch(n){return console.debug(n),new t(e)}}constructor(e,n=t._defaultMessage(e),i=""){super(n),this.response=e,this.traceback=i}static _defaultMessage(e){return`Invalid response: ${e.status} ${e.statusText}`}}e.ResponseError=t;class n extends TypeError{constructor(e){super(e.message),this.stack=e.stack}}e.NetworkError=n}(s=t.ServerConnection||(t.ServerConnection={})),function(e){e.makeSettings=function(e={}){var t;const n=i.PageConfig.getBaseUrl(),s=i.PageConfig.getWsUrl(),o=i.URLExt.normalize(e.baseUrl)||n;let a=e.wsUrl;return a||o!==n||(a=s),a||0!==o.indexOf("http")||(a="ws"+o.slice(4)),a=null!=a?a:s,{init:{cache:"no-store",credentials:"same-origin"},fetch,Headers,Request,WebSocket:r,token:i.PageConfig.getToken(),appUrl:i.PageConfig.getOption("appUrl"),appendToken:"undefined"==typeof window||"undefined"!=typeof process&&void 0!==(null===(t=null===process||void 0===process?void 0:process.env)||void 0===t?void 0:t.JEST_WORKER_ID)||i.URLExt.getHostName(n)!==i.URLExt.getHostName(a),...e,baseUrl:o,wsUrl:a}},e.handleRequest=function(e,t,n){var i;if(0!==e.indexOf(n.baseUrl))throw new Error("Can only be used for notebook server requests");"no-store"===(null!==(i=t.cache)&&void 0!==i?i:n.init.cache)&&(e+=(/\?/.test(e)?"&":"?")+(new Date).getTime());const r=new n.Request(e,{...n.init,...t});let o=!1;if(n.token&&(o=!0,r.headers.append("Authorization",`token ${n.token}`)),"undefined"!=typeof document&&(null===document||void 0===document?void 0:document.cookie)){const e=function(e){const t=document.cookie.match("\\b_xsrf=([^;]*)\\b");return null==t?void 0:t[1]}();void 0!==e&&(o=!0,r.headers.append("X-XSRFToken",e))}return!r.headers.has("Content-Type")&&o&&r.headers.set("Content-Type","application/json"),n.fetch.call(null,r).catch((e=>{throw new s.NetworkError(e)}))}}(o||(o={}))},75575:(e,t,n)=>{"use strict";Object.defineProperty(t,"__esModule",{value:!0}),t.SessionConnection=void 0;const i=n(60544),r=n(16914),s=n(28351),o=n(65168);t.SessionConnection=class{constructor(e){var t,n,s,a;this._id="",this._path="",this._name="",this._type="",this._kernel=null,this._isDisposed=!1,this._disposed=new i.Signal(this),this._kernelChanged=new i.Signal(this),this._statusChanged=new i.Signal(this),this._connectionStatusChanged=new i.Signal(this),this._pendingInput=new i.Signal(this),this._iopubMessage=new i.Signal(this),this._unhandledMessage=new i.Signal(this),this._anyMessage=new i.Signal(this),this._propertyChanged=new i.Signal(this),this._id=e.model.id,this._name=e.model.name,this._path=e.model.path,this._type=e.model.type,this._username=null!==(t=e.username)&&void 0!==t?t:"",this._clientId=null!==(n=e.clientId)&&void 0!==n?n:o.UUID.uuid4(),this._connectToKernel=e.connectToKernel,this._kernelConnectionOptions=null!==(s=e.kernelConnectionOptions)&&void 0!==s?s:{},this.serverSettings=null!==(a=e.serverSettings)&&void 0!==a?a:r.ServerConnection.makeSettings(),this.setupKernel(e.model.kernel)}get disposed(){return this._disposed}get kernelChanged(){return this._kernelChanged}get statusChanged(){return this._statusChanged}get connectionStatusChanged(){return this._connectionStatusChanged}get pendingInput(){return this._pendingInput}get iopubMessage(){return this._iopubMessage}get unhandledMessage(){return this._unhandledMessage}get anyMessage(){return this._anyMessage}get propertyChanged(){return this._propertyChanged}get id(){return this._id}get kernel(){return this._kernel}get path(){return this._path}get type(){return this._type}get name(){return this._name}get model(){return{id:this.id,kernel:this.kernel&&{id:this.kernel.id,name:this.kernel.name},path:this._path,type:this._type,name:this._name}}get isDisposed(){return this._isDisposed}update(e){const t=this.model;if(this._path=e.path,this._name=e.name,this._type=e.type,null===this._kernel&&null!==e.kernel||null!==this._kernel&&null===e.kernel||null!==this._kernel&&null!==e.kernel&&this._kernel.id!==e.kernel.id){null!==this._kernel&&this._kernel.dispose();const t=this._kernel||null;this.setupKernel(e.kernel);const n=this._kernel||null;this._kernelChanged.emit({name:"kernel",oldValue:t,newValue:n})}this._handleModelChange(t)}dispose(){if(!this.isDisposed){if(this._isDisposed=!0,this._disposed.emit(),this._kernel){this._kernel.dispose();const e=this._kernel;this._kernel=null;const t=this._kernel;this._kernelChanged.emit({name:"kernel",oldValue:e,newValue:t})}i.Signal.clearData(this)}}async setPath(e){if(this.isDisposed)throw new Error("Session is disposed");await this._patch({path:e})}async setName(e){if(this.isDisposed)throw new Error("Session is disposed");await this._patch({name:e})}async setType(e){if(this.isDisposed)throw new Error("Session is disposed");await this._patch({type:e})}async changeKernel(e){if(this.isDisposed)throw new Error("Session is disposed");return await this._patch({kernel:e}),this.kernel}async shutdown(){if(this.isDisposed)throw new Error("Session is disposed");await(0,s.shutdownSession)(this.id,this.serverSettings),this.dispose()}setupKernel(e){if(null===e)return void(this._kernel=null);const t=this._connectToKernel({...this._kernelConnectionOptions,model:e,username:this._username,clientId:this._clientId,serverSettings:this.serverSettings});this._kernel=t,t.statusChanged.connect(this.onKernelStatus,this),t.connectionStatusChanged.connect(this.onKernelConnectionStatus,this),t.pendingInput.connect(this.onPendingInput,this),t.unhandledMessage.connect(this.onUnhandledMessage,this),t.iopubMessage.connect(this.onIOPubMessage,this),t.anyMessage.connect(this.onAnyMessage,this)}onKernelStatus(e,t){this._statusChanged.emit(t)}onKernelConnectionStatus(e,t){this._connectionStatusChanged.emit(t)}onPendingInput(e,t){this._pendingInput.emit(t)}onIOPubMessage(e,t){this._iopubMessage.emit(t)}onUnhandledMessage(e,t){this._unhandledMessage.emit(t)}onAnyMessage(e,t){this._anyMessage.emit(t)}async _patch(e){const t=await(0,s.updateSession)({...e,id:this._id},this.serverSettings);return this.update(t),t}_handleModelChange(e){e.name!==this._name&&this._propertyChanged.emit("name"),e.type!==this._type&&this._propertyChanged.emit("type"),e.path!==this._path&&this._propertyChanged.emit("path")}}},67054:function(e,t,n){"use strict";var i=this&&this.__createBinding||(Object.create?function(e,t,n,i){void 0===i&&(i=n);var r=Object.getOwnPropertyDescriptor(t,n);r&&!("get"in r?!t.__esModule:r.writable||r.configurable)||(r={enumerable:!0,get:function(){return t[n]}}),Object.defineProperty(e,i,r)}:function(e,t,n,i){void 0===i&&(i=n),e[i]=t[n]}),r=this&&this.__setModuleDefault||(Object.create?function(e,t){Object.defineProperty(e,"default",{enumerable:!0,value:t})}:function(e,t){e.default=t}),s=this&&this.__importStar||function(e){if(e&&e.__esModule)return e;var t={};if(null!=e)for(var n in e)"default"!==n&&Object.prototype.hasOwnProperty.call(e,n)&&i(t,e,n);return r(t,e),t},o=this&&this.__exportStar||function(e,t){for(var n in e)"default"===n||Object.prototype.hasOwnProperty.call(t,n)||i(t,e,n)};Object.defineProperty(t,"__esModule",{value:!0}),t.SessionAPI=t.Session=void 0;const a=s(n(90658));t.Session=a;const l=s(n(28351));t.SessionAPI=l,o(n(6699),t)},6699:(e,t,n)=>{"use strict";Object.defineProperty(t,"__esModule",{value:!0}),t.SessionManager=void 0;const i=n(59033),r=n(60544),s=n(22700),o=n(92918),a=n(75575),l=n(28351);class u extends o.BaseManager{constructor(e){var t;super(e),this._isReady=!1,this._sessionConnections=new Set,this._models=new Map,this._runningChanged=new r.Signal(this),this._connectionFailure=new r.Signal(this),this._connectToKernel=e=>this._kernelManager.connectTo(e),this._kernelManager=e.kernelManager,this._pollModels=new i.Poll({auto:!1,factory:()=>this.requestRunning(),frequency:{interval:1e4,backoff:!0,max:3e5},name:"@jupyterlab/services:SessionManager#models",standby:null!==(t=e.standby)&&void 0!==t?t:"when-hidden"}),this._ready=(async()=>{await this._pollModels.start(),await this._pollModels.tick,this._kernelManager.isActive&&await this._kernelManager.ready,this._isReady=!0})()}get isReady(){return this._isReady}get ready(){return this._ready}get runningChanged(){return this._runningChanged}get connectionFailure(){return this._connectionFailure}dispose(){this.isDisposed||(this._models.clear(),this._sessionConnections.forEach((e=>e.dispose())),this._pollModels.dispose(),super.dispose())}connectTo(e){const t=new a.SessionConnection({...e,connectToKernel:this._connectToKernel,serverSettings:this.serverSettings});return this._onStarted(t),this._models.has(e.model.id)||this.refreshRunning().catch((()=>{})),t}running(){return this._models.values()}async refreshRunning(){await this._pollModels.refresh(),await this._pollModels.tick}async startNew(e,t={}){const n=await(0,l.startSession)(e,this.serverSettings);return await this.refreshRunning(),this.connectTo({...t,model:n})}async shutdown(e){await(0,l.shutdownSession)(e,this.serverSettings),await this.refreshRunning()}async shutdownAll(){await this.refreshRunning(),await Promise.all([...this._models.keys()].map((e=>(0,l.shutdownSession)(e,this.serverSettings)))),await this.refreshRunning()}async stopIfNeeded(e){try{const t=(await(0,l.listRunning)(this.serverSettings)).filter((t=>t.path===e));if(1===t.length){const e=t[0].id;await this.shutdown(e)}}catch(e){}}async findById(e){return this._models.has(e)||await this.refreshRunning(),this._models.get(e)}async findByPath(e){for(const t of this._models.values())if(t.path===e)return t;await this.refreshRunning();for(const t of this._models.values())if(t.path===e)return t}async requestRunning(){var e,t;let n;try{n=await(0,l.listRunning)(this.serverSettings)}catch(n){throw(n instanceof s.ServerConnection.NetworkError||503===(null===(e=n.response)||void 0===e?void 0:e.status)||424===(null===(t=n.response)||void 0===t?void 0:t.status))&&this._connectionFailure.emit(n),n}this.isDisposed||this._models.size===n.length&&n.every((e=>{var t,n,i,r;const s=this._models.get(e.id);return!!s&&(null===(t=s.kernel)||void 0===t?void 0:t.id)===(null===(n=e.kernel)||void 0===n?void 0:n.id)&&(null===(i=s.kernel)||void 0===i?void 0:i.name)===(null===(r=e.kernel)||void 0===r?void 0:r.name)&&s.name===e.name&&s.path===e.path&&s.type===e.type}))||(this._models=new Map(n.map((e=>[e.id,e]))),this._sessionConnections.forEach((e=>{this._models.has(e.id)?e.update(this._models.get(e.id)):e.dispose()})),this._runningChanged.emit(n))}_onStarted(e){this._sessionConnections.add(e),e.disposed.connect(this._onDisposed,this),e.propertyChanged.connect(this._onChanged,this),e.kernelChanged.connect(this._onChanged,this)}_onDisposed(e){this._sessionConnections.delete(e),this.refreshRunning().catch((()=>{}))}_onChanged(){this.refreshRunning().catch((()=>{}))}}t.SessionManager=u,function(e){e.NoopManager=class extends e{constructor(){super(...arguments),this._readyPromise=new Promise((()=>{}))}get isActive(){return!1}get parentReady(){return super.ready}async startNew(e,t={}){return Promise.reject(new Error("Not implemented in no-op Session Manager"))}connectTo(e){throw Error("Not implemented in no-op Session Manager")}get ready(){return this.parentReady.then((()=>this._readyPromise))}async shutdown(e){return Promise.reject(new Error("Not implemented in no-op Session Manager"))}async requestRunning(){return Promise.resolve()}}}(u=t.SessionManager||(t.SessionManager={}))},28351:(e,t,n)=>{"use strict";Object.defineProperty(t,"__esModule",{value:!0}),t.updateSession=t.startSession=t.getSessionModel=t.shutdownSession=t.getSessionUrl=t.listRunning=t.SESSION_SERVICE_URL=void 0;const i=n(22700),r=n(18920),s=n(48775);function o(e,n){return r.URLExt.join(e,t.SESSION_SERVICE_URL,n)}t.SESSION_SERVICE_URL="api/sessions",t.listRunning=async function(e=i.ServerConnection.makeSettings()){const n=r.URLExt.join(e.baseUrl,t.SESSION_SERVICE_URL),o=await i.ServerConnection.makeRequest(n,{},e);if(200!==o.status)throw await i.ServerConnection.ResponseError.create(o);const a=await o.json();if(!Array.isArray(a))throw new Error("Invalid Session list");return a.forEach((e=>{(0,s.updateLegacySessionModel)(e),(0,s.validateModel)(e)})),a},t.getSessionUrl=o,t.shutdownSession=async function(e,t=i.ServerConnection.makeSettings()){var n;const r=o(t.baseUrl,e),s=await i.ServerConnection.makeRequest(r,{method:"DELETE"},t);if(404===s.status){const t=null!==(n=(await s.json()).message)&&void 0!==n?n:`The session "${e}"" does not exist on the server`;console.warn(t)}else{if(410===s.status)throw new i.ServerConnection.ResponseError(s,"The kernel was deleted but the session was not");if(204!==s.status)throw await i.ServerConnection.ResponseError.create(s)}},t.getSessionModel=async function(e,t=i.ServerConnection.makeSettings()){const n=o(t.baseUrl,e),r=await i.ServerConnection.makeRequest(n,{},t);if(200!==r.status)throw await i.ServerConnection.ResponseError.create(r);const a=await r.json();return(0,s.updateLegacySessionModel)(a),(0,s.validateModel)(a),a},t.startSession=async function(e,n=i.ServerConnection.makeSettings()){const o=r.URLExt.join(n.baseUrl,t.SESSION_SERVICE_URL),a={method:"POST",body:JSON.stringify(e)},l=await i.ServerConnection.makeRequest(o,a,n);if(201!==l.status)throw await i.ServerConnection.ResponseError.create(l);const u=await l.json();return(0,s.updateLegacySessionModel)(u),(0,s.validateModel)(u),u},t.updateSession=async function(e,t=i.ServerConnection.makeSettings()){const n=o(t.baseUrl,e.id),r={method:"PATCH",body:JSON.stringify(e)},a=await i.ServerConnection.makeRequest(n,r,t);if(200!==a.status)throw await i.ServerConnection.ResponseError.create(a);const l=await a.json();return(0,s.updateLegacySessionModel)(l),(0,s.validateModel)(l),l}},90658:(e,t)=>{"use strict";Object.defineProperty(t,"__esModule",{value:!0})},48775:(e,t,n)=>{"use 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isVisible(){return this.testFlag(V.Flag.IsVisible)}get title(){return z.titleProperty.get(this)}get id(){return this.node.id}set id(e){this.node.id=e}get dataset(){return this.node.dataset}get hiddenMode(){return this._hiddenMode}set hiddenMode(e){this._hiddenMode!==e&&(this.isHidden&&this._toggleHidden(!1),e==V.HiddenMode.Scale?this.node.style.willChange="transform":this.node.style.willChange="auto",this._hiddenMode=e,this.isHidden&&this._toggleHidden(!0))}get parent(){return this._parent}set parent(e){if(this._parent!==e){if(e&&this.contains(e))throw new Error("Invalid parent widget.");if(this._parent&&!this._parent.isDisposed){let e=new V.ChildMessage("child-removed",this);g.sendMessage(this._parent,e)}if(this._parent=e,this._parent&&!this._parent.isDisposed){let e=new V.ChildMessage("child-added",this);g.sendMessage(this._parent,e)}this.isDisposed||g.sendMessage(this,V.Msg.ParentChanged)}}get layout(){return this._layout}set layout(e){if(this._layout!==e){if(this.testFlag(V.Flag.DisallowLayout))throw new Error("Cannot set widget layout.");if(this._layout)throw new Error("Cannot change widget layout.");if(e.parent)throw new Error("Cannot change layout parent.");this._layout=e,e.parent=this}}*children(){this._layout&&(yield*this._layout)}contains(e){for(let t=e;t;t=t._parent)if(t===this)return!0;return!1}hasClass(e){return 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V.ChildMessage("child-shown",this);g.sendMessage(this.parent,e)}}hide(){if(!this.testFlag(V.Flag.IsHidden)&&(!this.isAttached||this.parent&&!this.parent.isVisible||g.sendMessage(this,V.Msg.BeforeHide),this.setFlag(V.Flag.IsHidden),this._toggleHidden(!0),!this.isAttached||this.parent&&!this.parent.isVisible||g.sendMessage(this,V.Msg.AfterHide),this.parent)){let e=new V.ChildMessage("child-hidden",this);g.sendMessage(this.parent,e)}}setHidden(e){e?this.hide():this.show()}testFlag(e){return 0!=(this._flags&e)}setFlag(e){this._flags|=e}clearFlag(e){this._flags&=~e}processMessage(e){switch(e.type){case"resize":this.notifyLayout(e),this.onResize(e);break;case"update-request":this.notifyLayout(e),this.onUpdateRequest(e);break;case"fit-request":this.notifyLayout(e),this.onFitRequest(e);break;case"before-show":this.notifyLayout(e),this.onBeforeShow(e);break;case"after-show":this.setFlag(V.Flag.IsVisible),this.notifyLayout(e),this.onAfterShow(e);break;case"before-hide":this.notifyLayout(e),this.onBeforeHide(e);break;case"after-hide":this.clearFlag(V.Flag.IsVisible),this.notifyLayout(e),this.onAfterHide(e);break;case"before-attach":this.notifyLayout(e),this.onBeforeAttach(e);break;case"after-attach":this.isHidden||this.parent&&!this.parent.isVisible||this.setFlag(V.Flag.IsVisible),this.setFlag(V.Flag.IsAttached),this.notifyLayout(e),this.onAfterAttach(e);break;case"before-detach":this.notifyLayout(e),this.onBeforeDetach(e);break;case"after-detach":this.clearFlag(V.Flag.IsVisible),this.clearFlag(V.Flag.IsAttached),this.notifyLayout(e),this.onAfterDetach(e);break;case"activate-request":this.notifyLayout(e),this.onActivateRequest(e);break;case"close-request":this.notifyLayout(e),this.onCloseRequest(e);break;case"child-added":this.notifyLayout(e),this.onChildAdded(e);break;case"child-removed":this.notifyLayout(e),this.onChildRemoved(e);break;default:this.notifyLayout(e)}}notifyLayout(e){this._layout&&this._layout.processParentMessage(e)}onCloseRequest(e){this.parent?this.parent=null:this.isAttached&&V.detach(this)}onResize(e){}onUpdateRequest(e){}onFitRequest(e){}onActivateRequest(e){}onBeforeShow(e){}onAfterShow(e){}onBeforeHide(e){}onAfterHide(e){}onBeforeAttach(e){}onAfterAttach(e){}onBeforeDetach(e){}onAfterDetach(e){}onChildAdded(e){}onChildRemoved(e){}_toggleHidden(e){if(e)switch(this._hiddenMode){case V.HiddenMode.Display:this.addClass("lm-mod-hidden");break;case V.HiddenMode.Scale:this.node.style.transform="scale(0)",this.node.setAttribute("aria-hidden","true");break;case V.HiddenMode.ContentVisibility:this.node.style.contentVisibility="hidden",this.node.style.zIndex="-1"}else switch(this._hiddenMode){case V.HiddenMode.Display:this.removeClass("lm-mod-hidden");break;case V.HiddenMode.Scale:this.node.style.transform="",this.node.removeAttribute("aria-hidden");break;case V.HiddenMode.ContentVisibility:this.node.style.contentVisibility="",this.node.style.zIndex=""}}}!function(e){var t,n,i;(t=e.HiddenMode||(e.HiddenMode={}))[t.Display=0]="Display",t[t.Scale=1]="Scale",t[t.ContentVisibility=2]="ContentVisibility",(n=e.Flag||(e.Flag={}))[n.IsDisposed=1]="IsDisposed",n[n.IsAttached=2]="IsAttached",n[n.IsHidden=4]="IsHidden",n[n.IsVisible=8]="IsVisible",n[n.DisallowLayout=16]="DisallowLayout",(i=e.Msg||(e.Msg={})).BeforeShow=new w("before-show"),i.AfterShow=new w("after-show"),i.BeforeHide=new w("before-hide"),i.AfterHide=new w("after-hide"),i.BeforeAttach=new w("before-attach"),i.AfterAttach=new w("after-attach"),i.BeforeDetach=new w("before-detach"),i.AfterDetach=new w("after-detach"),i.ParentChanged=new w("parent-changed"),i.UpdateRequest=new C("update-request"),i.FitRequest=new C("fit-request"),i.ActivateRequest=new C("activate-request"),i.CloseRequest=new C("close-request"),e.ChildMessage=class extends w{constructor(e,t){super(e),this.child=t}};class r extends w{constructor(e,t){super("resize"),this.width=e,this.height=t}}e.ResizeMessage=r,function(e){e.UnknownSize=new e(-1,-1)}(r=e.ResizeMessage||(e.ResizeMessage={})),e.attach=function(t,n,i=null){if(t.parent)throw new Error("Cannot attach a child widget.");if(t.isAttached||t.node.isConnected)throw new Error("Widget is already attached.");if(!n.isConnected)throw new Error("Host is not attached.");g.sendMessage(t,e.Msg.BeforeAttach),n.insertBefore(t.node,i),g.sendMessage(t,e.Msg.AfterAttach)},e.detach=function(t){if(t.parent)throw new Error("Cannot detach a child widget.");if(!t.isAttached||!t.node.isConnected)throw new Error("Widget is not attached.");g.sendMessage(t,e.Msg.BeforeDetach),t.node.parentNode.removeChild(t.node),g.sendMessage(t,e.Msg.AfterDetach)}}(V||(V={})),function(e){e.titleProperty=new E({name:"title",create:e=>new H({owner:e})}),e.createNode=function(e){return e.node||document.createElement(e.tag||"div")}}(z||(z={}));class q{constructor(e={}){this._disposed=!1,this._parent=null,this._fitPolicy=e.fitPolicy||"set-min-size"}dispose(){this._parent=null,this._disposed=!0,x.clearData(this),E.clearData(this)}get isDisposed(){return this._disposed}get parent(){return this._parent}set parent(e){if(this._parent!==e){if(this._parent)throw new Error("Cannot change parent widget.");if(e.layout!==this)throw new Error("Invalid parent widget.");this._parent=e,this.init()}}get fitPolicy(){return this._fitPolicy}set fitPolicy(e){if(this._fitPolicy!==e&&(this._fitPolicy=e,this._parent)){let e=this._parent.node.style;e.minWidth="",e.minHeight="",e.maxWidth="",e.maxHeight="",this._parent.fit()}}processParentMessage(e){switch(e.type){case"resize":this.onResize(e);break;case"update-request":this.onUpdateRequest(e);break;case"fit-request":this.onFitRequest(e);break;case"before-show":this.onBeforeShow(e);break;case"after-show":this.onAfterShow(e);break;case"before-hide":this.onBeforeHide(e);break;case"after-hide":this.onAfterHide(e);break;case"before-attach":this.onBeforeAttach(e);break;case"after-attach":this.onAfterAttach(e);break;case"before-detach":this.onBeforeDetach(e);break;case"after-detach":this.onAfterDetach(e);break;case"child-removed":this.onChildRemoved(e);break;case"child-shown":this.onChildShown(e);break;case"child-hidden":this.onChildHidden(e)}}init(){for(const e of this)e.parent=this.parent}onResize(e){for(const e of this)g.sendMessage(e,V.ResizeMessage.UnknownSize)}onUpdateRequest(e){for(const e of this)g.sendMessage(e,V.ResizeMessage.UnknownSize)}onBeforeAttach(e){for(const t of this)g.sendMessage(t,e)}onAfterAttach(e){for(const t of this)g.sendMessage(t,e)}onBeforeDetach(e){for(const t of this)g.sendMessage(t,e)}onAfterDetach(e){for(const t of this)g.sendMessage(t,e)}onBeforeShow(e){for(const t of this)t.isHidden||g.sendMessage(t,e)}onAfterShow(e){for(const t of this)t.isHidden||g.sendMessage(t,e)}onBeforeHide(e){for(const t of this)t.isHidden||g.sendMessage(t,e)}onAfterHide(e){for(const t of this)t.isHidden||g.sendMessage(t,e)}onChildRemoved(e){this.removeWidget(e.child)}onFitRequest(e){}onChildShown(e){}onChildHidden(e){}}!function(e){e.getHorizontalAlignment=function(e){return U.horizontalAlignmentProperty.get(e)},e.setHorizontalAlignment=function(e,t){U.horizontalAlignmentProperty.set(e,t)},e.getVerticalAlignment=function(e){return U.verticalAlignmentProperty.get(e)},e.setVerticalAlignment=function(e,t){U.verticalAlignmentProperty.set(e,t)}}(q||(q={}));class G{constructor(e){this._top=NaN,this._left=NaN,this._width=NaN,this._height=NaN,this._minWidth=0,this._minHeight=0,this._maxWidth=1/0,this._maxHeight=1/0,this._disposed=!1,this.widget=e,this.widget.node.style.position="absolute",this.widget.node.style.contain="strict"}dispose(){if(this._disposed)return;this._disposed=!0;let e=this.widget.node.style;e.position="",e.top="",e.left="",e.width="",e.height="",e.contain=""}get minWidth(){return this._minWidth}get minHeight(){return this._minHeight}get maxWidth(){return this._maxWidth}get maxHeight(){return this._maxHeight}get isDisposed(){return this._disposed}get isHidden(){return this.widget.isHidden}get isVisible(){return this.widget.isVisible}get isAttached(){return this.widget.isAttached}fit(){let e=u.sizeLimits(this.widget.node);this._minWidth=e.minWidth,this._minHeight=e.minHeight,this._maxWidth=e.maxWidth,this._maxHeight=e.maxHeight}update(e,t,n,i){let r=Math.max(this._minWidth,Math.min(n,this._maxWidth)),s=Math.max(this._minHeight,Math.min(i,this._maxHeight));if(r"center",changed:t}),e.verticalAlignmentProperty=new E({name:"verticalAlignment",create:()=>"top",changed:t})}(U||(U={}));class K extends q{constructor(){super(...arguments),this._widgets=[]}dispose(){for(;this._widgets.length>0;)this._widgets.pop().dispose();super.dispose()}get widgets(){return this._widgets}*[Symbol.iterator](){yield*this._widgets}addWidget(e){this.insertWidget(this._widgets.length,e)}insertWidget(e,t){t.parent=this.parent;let n=this._widgets.indexOf(t),r=Math.max(0,Math.min(e,this._widgets.length));if(-1===n)return i.insert(this._widgets,r,t),void(this.parent&&this.attachWidget(r,t));r===this._widgets.length&&r--,n!==r&&(i.move(this._widgets,n,r),this.parent&&this.moveWidget(n,r,t))}removeWidget(e){this.removeWidgetAt(this._widgets.indexOf(e))}removeWidgetAt(e){let t=i.removeAt(this._widgets,e);t&&this.parent&&this.detachWidget(e,t)}init(){super.init();let e=0;for(const t of this)this.attachWidget(e++,t)}attachWidget(e,t){let n=this.parent.node.children[e];this.parent.isAttached&&g.sendMessage(t,V.Msg.BeforeAttach),this.parent.node.insertBefore(t.node,n),this.parent.isAttached&&g.sendMessage(t,V.Msg.AfterAttach)}moveWidget(e,t,n){this.parent.isAttached&&g.sendMessage(n,V.Msg.BeforeDetach),this.parent.node.removeChild(n.node),this.parent.isAttached&&g.sendMessage(n,V.Msg.AfterDetach);let i=this.parent.node.children[t];this.parent.isAttached&&g.sendMessage(n,V.Msg.BeforeAttach),this.parent.node.insertBefore(n.node,i),this.parent.isAttached&&g.sendMessage(n,V.Msg.AfterAttach)}detachWidget(e,t){this.parent.isAttached&&g.sendMessage(t,V.Msg.BeforeDetach),this.parent.node.removeChild(t.node),this.parent.isAttached&&g.sendMessage(t,V.Msg.AfterDetach)}}!function(e){e.clampDimension=function(e){return Math.max(0,Math.floor(e))}}($||($={}));var Y,J,X,Z,Q,ee,te,ne,ie,re,se=$;class oe extends K{constructor(e){super(),this.widgetOffset=0,this._fixed=0,this._spacing=4,this._dirty=!1,this._hasNormedSizes=!1,this._sizers=[],this._items=[],this._handles=[],this._box=null,this._alignment="start",this._orientation="horizontal",this.renderer=e.renderer,void 0!==e.orientation&&(this._orientation=e.orientation),void 0!==e.alignment&&(this._alignment=e.alignment),void 0!==e.spacing&&(this._spacing=$.clampDimension(e.spacing))}dispose(){for(const e of this._items)e.dispose();this._box=null,this._items.length=0,this._sizers.length=0,this._handles.length=0,super.dispose()}get orientation(){return this._orientation}set orientation(e){this._orientation!==e&&(this._orientation=e,this.parent&&(this.parent.dataset.orientation=e,this.parent.fit()))}get alignment(){return this._alignment}set alignment(e){this._alignment!==e&&(this._alignment=e,this.parent&&(this.parent.dataset.alignment=e,this.parent.update()))}get spacing(){return this._spacing}set spacing(e){e=$.clampDimension(e),this._spacing!==e&&(this._spacing=e,this.parent&&this.parent.fit())}get handles(){return this._handles}absoluteSizes(){return this._sizers.map((e=>e.size))}relativeSizes(){return Y.normalize(this._sizers.map((e=>e.size)))}setRelativeSizes(e,t=!0){let n=this._sizers.length,i=e.slice(0,n);for(;i.length0&&(e.sizeHint=e.size);F.adjust(this._sizers,e,n),this.parent&&this.parent.update()}}init(){this.parent.dataset.orientation=this.orientation,this.parent.dataset.alignment=this.alignment,super.init()}attachWidget(e,t){let n=new G(t),r=Y.createHandle(this.renderer),s=Y.averageSize(this._sizers),o=Y.createSizer(s);i.insert(this._items,e,n),i.insert(this._sizers,e,o),i.insert(this._handles,e,r),this.parent.isAttached&&g.sendMessage(t,V.Msg.BeforeAttach),this.parent.node.appendChild(t.node),this.parent.node.appendChild(r),this.parent.isAttached&&g.sendMessage(t,V.Msg.AfterAttach),this.parent.fit()}moveWidget(e,t,n){i.move(this._items,e,t),i.move(this._sizers,e,t),i.move(this._handles,e,t),this.parent.fit()}detachWidget(e,t){let n=i.removeAt(this._items,e),r=i.removeAt(this._handles,e);i.removeAt(this._sizers,e),this.parent.isAttached&&g.sendMessage(t,V.Msg.BeforeDetach),this.parent.node.removeChild(t.node),this.parent.node.removeChild(r),this.parent.isAttached&&g.sendMessage(t,V.Msg.AfterDetach),n.dispose(),this.parent.fit()}onBeforeShow(e){super.onBeforeShow(e),this.parent.update()}onBeforeAttach(e){super.onBeforeAttach(e),this.parent.fit()}onChildShown(e){this.parent.fit()}onChildHidden(e){this.parent.fit()}onResize(e){this.parent.isVisible&&this._update(e.width,e.height)}onUpdateRequest(e){this.parent.isVisible&&this._update(-1,-1)}onFitRequest(e){this.parent.isAttached&&this._fit()}updateItemPosition(e,t,n,i,r,s,o){const a=this._items[e];if(a.isHidden)return;let l=this._handles[e].style;t?(n+=this.widgetOffset,a.update(n,i,o,r),n+=o,l.top=`${i}px`,l.left=`${n}px`,l.width=`${this._spacing}px`,l.height=`${r}px`):(i+=this.widgetOffset,a.update(n,i,s,o),i+=o,l.top=`${i}px`,l.left=`${n}px`,l.width=`${s}px`,l.height=`${this._spacing}px`)}_fit(){let e=0,t=-1;for(let n=0,i=this._items.length;n0&&(s.sizeHint=s.size),t.isHidden?(s.minSize=0,s.maxSize=0):(t.fit(),s.stretch=oe.getStretch(t.widget),n?(s.minSize=t.minWidth,s.maxSize=t.maxWidth,i+=t.minWidth,r=Math.max(r,t.minHeight)):(s.minSize=t.minHeight,s.maxSize=t.maxHeight,r+=t.minHeight,i=Math.max(i,t.minWidth)))}let s=this._box=u.boxSizing(this.parent.node);i+=s.horizontalSum,r+=s.verticalSum;let o=this.parent.node.style;o.minWidth=`${i}px`,o.minHeight=`${r}px`,this._dirty=!0,this.parent.parent&&g.sendMessage(this.parent.parent,V.Msg.FitRequest),this._dirty&&g.sendMessage(this.parent,V.Msg.UpdateRequest)}_update(e,t){this._dirty=!1;let n=0;for(let e=0,t=this._items.length;e0){let e;if(e=d?Math.max(0,s-this._fixed):Math.max(0,o-this._fixed),this._hasNormedSizes){for(let t of this._sizers)t.sizeHint*=e;this._hasNormedSizes=!1}let t=F.calc(this._sizers,e);if(t>0)switch(this._alignment){case"start":break;case"center":a=0,l=t/2;break;case"end":a=0,l=t;break;case"justify":a=t/n,l=0;break;default:throw"unreachable"}}for(let e=0,t=this._items.length;e0,coerce:(e,t)=>Math.max(0,Math.floor(t)),changed:function(e){e.parent&&e.parent.layout instanceof oe&&e.parent.fit()}}),e.createSizer=function(e){let t=new W;return t.sizeHint=Math.floor(e),t},e.createHandle=function(e){let t=e.createHandle();return t.style.position="absolute",t.style.contain="style",t},e.averageSize=function(e){return e.reduce(((e,t)=>e+t.size),0)/e.length||0},e.normalize=function(e){let t=e.length;if(0===t)return[];let n=e.reduce(((e,t)=>e+Math.abs(t)),0);return 0===n?e.map((e=>1/t)):e.map((e=>e/n))}}(Y||(Y={}));class ae extends oe{constructor(e){super({...e,orientation:e.orientation||"vertical"}),this._titles=[],this.titleSpace=e.titleSpace||22}get titleSpace(){return this.widgetOffset}set titleSpace(e){e=se.clampDimension(e),this.widgetOffset!==e&&(this.widgetOffset=e,this.parent&&this.parent.fit())}get titles(){return this._titles}dispose(){this.isDisposed||(this._titles.length=0,super.dispose())}updateTitle(e,t){const n=this._titles[e],i=n.classList.contains("lm-mod-expanded"),r=J.createTitle(this.renderer,t.title,i);this._titles[e]=r,this.parent.node.replaceChild(r,n)}insertWidget(e,t){t.id||(t.id=`id-${A.UUID.uuid4()}`),super.insertWidget(e,t)}attachWidget(e,t){const n=J.createTitle(this.renderer,t.title);i.insert(this._titles,e,n),this.parent.node.appendChild(n),t.node.setAttribute("role","region"),t.node.setAttribute("aria-labelledby",n.id),super.attachWidget(e,t)}moveWidget(e,t,n){i.move(this._titles,e,t),super.moveWidget(e,t,n)}detachWidget(e,t){const n=i.removeAt(this._titles,e);this.parent.node.removeChild(n),super.detachWidget(e,t)}updateItemPosition(e,t,n,i,r,s,o){const a=this._titles[e].style;a.top=`${i}px`,a.left=`${n}px`,a.height=`${this.widgetOffset}px`,a.width=t?`${r}px`:`${s}px`,super.updateItemPosition(e,t,n,i,r,s,o)}}!function(e){e.createTitle=function(e,t,n=!0){const i=e.createSectionTitle(t);return i.style.position="absolute",i.style.contain="strict",i.setAttribute("aria-label",`${t.label} Section`),i.setAttribute("aria-expanded",n?"true":"false"),i.setAttribute("aria-controls",t.owner.id),n&&i.classList.add("lm-mod-expanded"),i}}(J||(J={}));class le extends V{constructor(e={}){super(),this.addClass("lm-Panel"),this.layout=X.createLayout(e)}get widgets(){return this.layout.widgets}addWidget(e){this.layout.addWidget(e)}insertWidget(e,t){this.layout.insertWidget(e,t)}}!function(e){e.createLayout=function(e){return e.layout||new K}}(X||(X={}));class ue extends le{constructor(e={}){super({layout:Z.createLayout(e)}),this._handleMoved=new x(this),this._pressData=null,this.addClass("lm-SplitPanel")}dispose(){this._releaseMouse(),super.dispose()}get orientation(){return this.layout.orientation}set orientation(e){this.layout.orientation=e}get alignment(){return this.layout.alignment}set alignment(e){this.layout.alignment=e}get spacing(){return this.layout.spacing}set spacing(e){this.layout.spacing=e}get renderer(){return this.layout.renderer}get handleMoved(){return this._handleMoved}get handles(){return this.layout.handles}relativeSizes(){return this.layout.relativeSizes()}setRelativeSizes(e,t=!0){this.layout.setRelativeSizes(e,t)}handleEvent(e){switch(e.type){case"pointerdown":this._evtPointerDown(e);break;case"pointermove":this._evtPointerMove(e);break;case"pointerup":this._evtPointerUp(e);break;case"keydown":this._evtKeyDown(e);break;case"contextmenu":e.preventDefault(),e.stopPropagation()}}onBeforeAttach(e){this.node.addEventListener("pointerdown",this)}onAfterDetach(e){this.node.removeEventListener("pointerdown",this),this._releaseMouse()}onChildAdded(e){e.child.addClass("lm-SplitPanel-child"),this._releaseMouse()}onChildRemoved(e){e.child.removeClass("lm-SplitPanel-child"),this._releaseMouse()}_evtKeyDown(e){this._pressData&&(e.preventDefault(),e.stopPropagation()),27===e.keyCode&&this._releaseMouse()}_evtPointerDown(e){if(0!==e.button)return;let t,n=this.layout,r=i.findFirstIndex(n.handles,(t=>t.contains(e.target)));if(-1===r)return;e.preventDefault(),e.stopPropagation(),document.addEventListener("pointerup",this,!0),document.addEventListener("pointermove",this,!0),document.addEventListener("keydown",this,!0),document.addEventListener("contextmenu",this,!0);let s=n.handles[r],o=s.getBoundingClientRect();t="horizontal"===n.orientation?e.clientX-o.left:e.clientY-o.top;let a=window.getComputedStyle(s),l=M.Drag.overrideCursor(a.cursor);this._pressData={index:r,delta:t,override:l}}_evtPointerMove(e){let t;e.preventDefault(),e.stopPropagation();let n=this.layout,i=this.node.getBoundingClientRect();t="horizontal"===n.orientation?e.clientX-i.left-this._pressData.delta:e.clientY-i.top-this._pressData.delta,n.moveHandle(this._pressData.index,t)}_evtPointerUp(e){0===e.button&&(e.preventDefault(),e.stopPropagation(),this._releaseMouse())}_releaseMouse(){this._pressData&&(this._pressData.override.dispose(),this._pressData=null,this._handleMoved.emit(),document.removeEventListener("keydown",this,!0),document.removeEventListener("pointerup",this,!0),document.removeEventListener("pointermove",this,!0),document.removeEventListener("contextmenu",this,!0))}}!function(e){class t{createHandle(){let e=document.createElement("div");return e.className="lm-SplitPanel-handle",e}}e.Renderer=t,e.defaultRenderer=new t,e.getStretch=function(e){return oe.getStretch(e)},e.setStretch=function(e,t){oe.setStretch(e,t)}}(ue||(ue={})),function(e){e.createLayout=function(e){return e.layout||new oe({renderer:e.renderer||ue.defaultRenderer,orientation:e.orientation,alignment:e.alignment,spacing:e.spacing})}}(Z||(Z={}));class de extends ue{constructor(e={}){super({...e,layout:Q.createLayout(e)}),this._widgetSizesCache=new WeakMap,this._expansionToggled=new x(this),this.addClass("lm-AccordionPanel")}get renderer(){return this.layout.renderer}get titleSpace(){return this.layout.titleSpace}set titleSpace(e){this.layout.titleSpace=e}get titles(){return this.layout.titles}get expansionToggled(){return this._expansionToggled}addWidget(e){super.addWidget(e),e.title.changed.connect(this._onTitleChanged,this)}collapse(e){const t=this.layout.widgets[e];t&&!t.isHidden&&this._toggleExpansion(e)}expand(e){const t=this.layout.widgets[e];t&&t.isHidden&&this._toggleExpansion(e)}insertWidget(e,t){super.insertWidget(e,t),t.title.changed.connect(this._onTitleChanged,this)}handleEvent(e){switch(super.handleEvent(e),e.type){case"click":this._evtClick(e);break;case"keydown":this._eventKeyDown(e)}}onBeforeAttach(e){this.node.addEventListener("click",this),this.node.addEventListener("keydown",this),super.onBeforeAttach(e)}onAfterDetach(e){super.onAfterDetach(e),this.node.removeEventListener("click",this),this.node.removeEventListener("keydown",this)}_onTitleChanged(e){const t=i.findFirstIndex(this.widgets,(t=>t.contains(e.owner)));t>=0&&(this.layout.updateTitle(t,e.owner),this.update())}_computeWidgetSize(e){const t=this.layout,n=t.widgets[e];if(!n)return;const i=n.isHidden,r=t.absoluteSizes(),s=(i?-1:1)*this.spacing,o=r.reduce(((e,t)=>e+t));let a=[...r];if(i){const t=this._widgetSizesCache.get(n);if(!t)return;a[e]+=t;const i=a.map((e=>e-t>0)).lastIndexOf(!0);-1===i?a.forEach(((n,i)=>{i!==e&&(a[i]-=r[i]/o*(t-s))})):a[i]-=t-s}else{const t=r[e];this._widgetSizesCache.set(n,t),a[e]=0;const i=a.map((e=>e>0)).lastIndexOf(!0);if(-1===i)return;a[i]=r[i]+t+s}return a.map((e=>e/(o+s)))}_evtClick(e){const t=e.target;if(t){const n=i.findFirstIndex(this.titles,(e=>e.contains(t)));n>=0&&(e.preventDefault(),e.stopPropagation(),this._toggleExpansion(n))}}_eventKeyDown(e){if(e.defaultPrevented)return;const t=e.target;let n=!1;if(t){const r=i.findFirstIndex(this.titles,(e=>e.contains(t)));if(r>=0){const i=e.keyCode.toString();if(e.key.match(/Space|Enter/)||i.match(/13|32/))t.click(),n=!0;else if("horizontal"===this.orientation?e.key.match(/ArrowLeft|ArrowRight/)||i.match(/37|39/):e.key.match(/ArrowUp|ArrowDown/)||i.match(/38|40/)){const t=e.key.match(/ArrowLeft|ArrowUp/)||i.match(/37|38/)?-1:1,s=this.titles.length,o=(r+s+t)%s;this.titles[o].focus(),n=!0}else"End"===e.key||"35"===i?(this.titles[this.titles.length-1].focus(),n=!0):"Home"!==e.key&&"36"!==i||(this.titles[0].focus(),n=!0)}n&&e.preventDefault()}}_toggleExpansion(e){const t=this.titles[e],n=this.layout.widgets[e],i=this._computeWidgetSize(e);i&&this.setRelativeSizes(i,!1),n.isHidden?(t.classList.add("lm-mod-expanded"),t.setAttribute("aria-expanded","true"),n.show()):(t.classList.remove("lm-mod-expanded"),t.setAttribute("aria-expanded","false"),n.hide()),this._expansionToggled.emit(e)}}!function(e){class t extends ue.Renderer{constructor(){super(),this.titleClassName="lm-AccordionPanel-title",this._titleID=0,this._titleKeys=new WeakMap,this._uuid=++t._nInstance}createCollapseIcon(e){return document.createElement("span")}createSectionTitle(e){const t=document.createElement("h3");t.setAttribute("tabindex","0"),t.id=this.createTitleKey(e),t.className=this.titleClassName;for(const n in e.dataset)t.dataset[n]=e.dataset[n];t.appendChild(this.createCollapseIcon(e)).className="lm-AccordionPanel-titleCollapser";const n=t.appendChild(document.createElement("span"));return n.className="lm-AccordionPanel-titleLabel",n.textContent=e.label,n.title=e.caption||e.label,t}createTitleKey(e){let t=this._titleKeys.get(e);return void 0===t&&(t=`title-key-${this._uuid}-${this._titleID++}`,this._titleKeys.set(e,t)),t}}t._nInstance=0,e.Renderer=t,e.defaultRenderer=new t}(de||(de={})),function(e){e.createLayout=function(e){return e.layout||new ae({renderer:e.renderer||de.defaultRenderer,orientation:e.orientation,alignment:e.alignment,spacing:e.spacing,titleSpace:e.titleSpace})}}(Q||(Q={}));class ce extends K{constructor(e={}){super(),this._fixed=0,this._spacing=4,this._dirty=!1,this._sizers=[],this._items=[],this._box=null,this._alignment="start",this._direction="top-to-bottom",void 0!==e.direction&&(this._direction=e.direction),void 0!==e.alignment&&(this._alignment=e.alignment),void 0!==e.spacing&&(this._spacing=se.clampDimension(e.spacing))}dispose(){for(const e of this._items)e.dispose();this._box=null,this._items.length=0,this._sizers.length=0,super.dispose()}get direction(){return this._direction}set direction(e){this._direction!==e&&(this._direction=e,this.parent&&(this.parent.dataset.direction=e,this.parent.fit()))}get alignment(){return this._alignment}set alignment(e){this._alignment!==e&&(this._alignment=e,this.parent&&(this.parent.dataset.alignment=e,this.parent.update()))}get spacing(){return this._spacing}set spacing(e){e=se.clampDimension(e),this._spacing!==e&&(this._spacing=e,this.parent&&this.parent.fit())}init(){this.parent.dataset.direction=this.direction,this.parent.dataset.alignment=this.alignment,super.init()}attachWidget(e,t){i.insert(this._items,e,new G(t)),i.insert(this._sizers,e,new W),this.parent.isAttached&&g.sendMessage(t,V.Msg.BeforeAttach),this.parent.node.appendChild(t.node),this.parent.isAttached&&g.sendMessage(t,V.Msg.AfterAttach),this.parent.fit()}moveWidget(e,t,n){i.move(this._items,e,t),i.move(this._sizers,e,t),this.parent.update()}detachWidget(e,t){let n=i.removeAt(this._items,e);i.removeAt(this._sizers,e),this.parent.isAttached&&g.sendMessage(t,V.Msg.BeforeDetach),this.parent.node.removeChild(t.node),this.parent.isAttached&&g.sendMessage(t,V.Msg.AfterDetach),n.dispose(),this.parent.fit()}onBeforeShow(e){super.onBeforeShow(e),this.parent.update()}onBeforeAttach(e){super.onBeforeAttach(e),this.parent.fit()}onChildShown(e){this.parent.fit()}onChildHidden(e){this.parent.fit()}onResize(e){this.parent.isVisible&&this._update(e.width,e.height)}onUpdateRequest(e){this.parent.isVisible&&this._update(-1,-1)}onFitRequest(e){this.parent.isAttached&&this._fit()}_fit(){let e=0;for(let t=0,n=this._items.length;t0)switch(this._alignment){case"start":break;case"center":l=0,d=i/2;break;case"end":l=0,d=i;break;case"justify":l=i/n,d=0;break;default:throw"unreachable"}for(let e=0,t=this._items.length;e0,coerce:(e,t)=>Math.max(0,Math.floor(t)),changed:t}),e.sizeBasisProperty=new E({name:"sizeBasis",create:()=>0,coerce:(e,t)=>Math.max(0,Math.floor(t)),changed:t}),e.isHorizontal=function(e){return"left-to-right"===e||"right-to-left"===e},e.clampSpacing=function(e){return Math.max(0,Math.floor(e))}}(ee||(ee={}));class he extends le{constructor(e={}){super({layout:te.createLayout(e)}),this.addClass("lm-BoxPanel")}get direction(){return this.layout.direction}set direction(e){this.layout.direction=e}get alignment(){return this.layout.alignment}set alignment(e){this.layout.alignment=e}get spacing(){return this.layout.spacing}set spacing(e){this.layout.spacing=e}onChildAdded(e){e.child.addClass("lm-BoxPanel-child")}onChildRemoved(e){e.child.removeClass("lm-BoxPanel-child")}}!function(e){e.getStretch=function(e){return ce.getStretch(e)},e.setStretch=function(e,t){ce.setStretch(e,t)},e.getSizeBasis=function(e){return ce.getSizeBasis(e)},e.setSizeBasis=function(e,t){ce.setSizeBasis(e,t)}}(he||(he={})),function(e){e.createLayout=function(e){return e.layout||new ce(e)}}(te||(te={}));class pe extends V{constructor(e){super({node:ne.createNode()}),this._activeIndex=-1,this._items=[],this._results=null,this.addClass("lm-CommandPalette"),this.setFlag(V.Flag.DisallowLayout),this.commands=e.commands,this.renderer=e.renderer||pe.defaultRenderer,this.commands.commandChanged.connect(this._onGenericChange,this),this.commands.keyBindingChanged.connect(this._onGenericChange,this)}dispose(){this._items.length=0,this._results=null,super.dispose()}get searchNode(){return this.node.getElementsByClassName("lm-CommandPalette-search")[0]}get inputNode(){return this.node.getElementsByClassName("lm-CommandPalette-input")[0]}get contentNode(){return this.node.getElementsByClassName("lm-CommandPalette-content")[0]}get items(){return this._items}addItem(e){let t=ne.createItem(this.commands,e);return this._items.push(t),this.refresh(),t}addItems(e){const t=e.map((e=>ne.createItem(this.commands,e)));return t.forEach((e=>this._items.push(e))),this.refresh(),t}removeItem(e){this.removeItemAt(this._items.indexOf(e))}removeItemAt(e){i.removeAt(this._items,e)&&this.refresh()}clearItems(){0!==this._items.length&&(this._items.length=0,this.refresh())}refresh(){this._results=null,""!==this.inputNode.value?this.node.getElementsByClassName("lm-close-icon")[0].style.display="inherit":this.node.getElementsByClassName("lm-close-icon")[0].style.display="none",this.update()}handleEvent(e){switch(e.type){case"click":this._evtClick(e);break;case"keydown":this._evtKeyDown(e);break;case"input":this.refresh();break;case"focus":case"blur":this._toggleFocused()}}onBeforeAttach(e){this.node.addEventListener("click",this),this.node.addEventListener("keydown",this),this.node.addEventListener("input",this),this.node.addEventListener("focus",this,!0),this.node.addEventListener("blur",this,!0)}onAfterDetach(e){this.node.removeEventListener("click",this),this.node.removeEventListener("keydown",this),this.node.removeEventListener("input",this),this.node.removeEventListener("focus",this,!0),this.node.removeEventListener("blur",this,!0)}onAfterShow(e){this.update(),super.onAfterShow(e)}onActivateRequest(e){if(this.isAttached){let e=this.inputNode;e.focus(),e.select()}}onUpdateRequest(e){if(this.isHidden)return;let t=this.inputNode.value,n=this.contentNode,r=this._results;if(r||(r=this._results=ne.search(this._items,t),this._activeIndex=t?i.findFirstIndex(r,ne.canActivate):-1),!t&&0===r.length)return void S.render(null,n);if(t&&0===r.length){let e=this.renderer.renderEmptyMessage({query:t});return void S.render(e,n)}let s=this.renderer,o=this._activeIndex,a=new Array(r.length);for(let e=0,t=r.length;e=r.length)n.scrollTop=0;else{let e=n.children[o];u.scrollIntoViewIfNeeded(n,e)}}_evtClick(e){if(0!==e.button)return;if(e.target.classList.contains("lm-close-icon"))return this.inputNode.value="",void this.refresh();let t=i.findFirstIndex(this.contentNode.children,(t=>t.contains(e.target)));-1!==t&&(e.preventDefault(),e.stopPropagation(),this._execute(t))}_evtKeyDown(e){if(!(e.altKey||e.ctrlKey||e.metaKey||e.shiftKey))switch(e.keyCode){case 13:e.preventDefault(),e.stopPropagation(),this._execute(this._activeIndex);break;case 38:e.preventDefault(),e.stopPropagation(),this._activatePreviousItem();break;case 40:e.preventDefault(),e.stopPropagation(),this._activateNextItem()}}_activateNextItem(){if(!this._results||0===this._results.length)return;let e=this._activeIndex,t=this._results.length,n=ee-t)),c=a.slice(0,d),h=a.slice(d);for(let e=0,t=h.length;en.command===e&&A.JSONExt.deepEqual(n.args,t)))||null}}}(ne||(ne={}));class ge extends V{constructor(e){super({node:ie.createNode()}),this._childIndex=-1,this._activeIndex=-1,this._openTimerID=0,this._closeTimerID=0,this._items=[],this._childMenu=null,this._parentMenu=null,this._aboutToClose=new x(this),this._menuRequested=new x(this),this.addClass("lm-Menu"),this.setFlag(V.Flag.DisallowLayout),this.commands=e.commands,this.renderer=e.renderer||ge.defaultRenderer}dispose(){this.close(),this._items.length=0,super.dispose()}get aboutToClose(){return this._aboutToClose}get menuRequested(){return this._menuRequested}get parentMenu(){return this._parentMenu}get childMenu(){return this._childMenu}get rootMenu(){let e=this;for(;e._parentMenu;)e=e._parentMenu;return e}get leafMenu(){let e=this;for(;e._childMenu;)e=e._childMenu;return e}get contentNode(){return this.node.getElementsByClassName("lm-Menu-content")[0]}get activeItem(){return this._items[this._activeIndex]||null}set activeItem(e){this.activeIndex=e?this._items.indexOf(e):-1}get activeIndex(){return this._activeIndex}set activeIndex(e){(e<0||e>=this._items.length)&&(e=-1),-1===e||ie.canActivate(this._items[e])||(e=-1),this._activeIndex!==e&&(this._activeIndex=e,this._activeIndex>=0&&this.contentNode.childNodes[this._activeIndex]&&this.contentNode.childNodes[this._activeIndex].focus(),this.update())}get items(){return this._items}activateNextItem(){let e=this._items.length,t=this._activeIndex,n=t{this.activeIndex=e}})}S.render(s,this.contentNode)}onCloseRequest(e){this._cancelOpenTimer(),this._cancelCloseTimer(),this.activeIndex=-1;let t=this._childMenu;t&&(this._childIndex=-1,this._childMenu=null,t._parentMenu=null,t.close());let n=this._parentMenu;n&&(this._parentMenu=null,n._childIndex=-1,n._childMenu=null,n.activate()),this.isAttached&&this._aboutToClose.emit(void 0),super.onCloseRequest(e)}_evtKeyDown(e){e.preventDefault(),e.stopPropagation();let t=e.keyCode;if(13===t)return void this.triggerActiveItem();if(27===t)return void this.close();if(37===t)return void(this._parentMenu?this.close():this._menuRequested.emit("previous"));if(38===t)return void this.activatePreviousItem();if(39===t){let e=this.activeItem;return void(e&&"submenu"===e.type?this.triggerActiveItem():this.rootMenu._menuRequested.emit("next"))}if(40===t)return void this.activateNextItem();let n=R().keyForKeydownEvent(e);if(!n)return;let i=this._activeIndex+1,r=ie.findMnemonic(this._items,n,i);-1===r.index||r.multiple?-1!==r.index?this.activeIndex=r.index:-1!==r.auto&&(this.activeIndex=r.auto):(this.activeIndex=r.index,this.triggerActiveItem())}_evtMouseUp(e){0===e.button&&(e.preventDefault(),e.stopPropagation(),this.triggerActiveItem())}_evtMouseMove(e){let t=i.findFirstIndex(this.contentNode.children,(t=>u.hitTest(t,e.clientX,e.clientY)));if(t===this._activeIndex)return;if(this.activeIndex=t,t=this.activeIndex,t===this._childIndex)return this._cancelOpenTimer(),void this._cancelCloseTimer();-1!==this._childIndex&&this._startCloseTimer(),this._cancelOpenTimer();let n=this.activeItem;n&&"submenu"===n.type&&n.submenu&&this._startOpenTimer()}_evtMouseEnter(e){for(let e=this._parentMenu;e;e=e._parentMenu)e._cancelOpenTimer(),e._cancelCloseTimer(),e.activeIndex=e._childIndex}_evtMouseLeave(e){if(this._cancelOpenTimer(),!this._childMenu)return void(this.activeIndex=-1);let{clientX:t,clientY:n}=e;u.hitTest(this._childMenu.node,t,n)?this._cancelCloseTimer():(this.activeIndex=-1,this._startCloseTimer())}_evtMouseDown(e){this._parentMenu||(ie.hitTestMenus(this,e.clientX,e.clientY)?(e.preventDefault(),e.stopPropagation()):this.close())}_openChildMenu(e=!1){let t=this.activeItem;if(!t||"submenu"!==t.type||!t.submenu)return void this._closeChildMenu();let n=t.submenu;if(n===this._childMenu)return;ge.saveWindowData(),this._closeChildMenu(),this._childMenu=n,this._childIndex=this._activeIndex,n._parentMenu=this,g.sendMessage(this,V.Msg.UpdateRequest);let i=this.contentNode.children[this._activeIndex];ie.openSubmenu(n,i),e&&(n.activeIndex=-1,n.activateNextItem()),n.activate()}_closeChildMenu(){this._childMenu&&this._childMenu.close()}_startOpenTimer(){0===this._openTimerID&&(this._openTimerID=window.setTimeout((()=>{this._openTimerID=0,this._openChildMenu()}),ie.TIMER_DELAY))}_startCloseTimer(){0===this._closeTimerID&&(this._closeTimerID=window.setTimeout((()=>{this._closeTimerID=0,this._closeChildMenu()}),ie.TIMER_DELAY))}_cancelOpenTimer(){0!==this._openTimerID&&(clearTimeout(this._openTimerID),this._openTimerID=0)}_cancelCloseTimer(){0!==this._closeTimerID&&(clearTimeout(this._closeTimerID),this._closeTimerID=0)}static saveWindowData(){ie.saveWindowData()}}!function(e){class t{renderItem(e){let t=this.createItemClass(e),n=this.createItemDataset(e),i=this.createItemARIA(e);return B.li({className:t,dataset:n,tabindex:"0",onfocus:e.onfocus,...i},this.renderIcon(e),this.renderLabel(e),this.renderShortcut(e),this.renderSubmenu(e))}renderIcon(e){let t=this.createIconClass(e);return B.div({className:t},e.item.icon,e.item.iconLabel)}renderLabel(e){let t=this.formatLabel(e);return B.div({className:"lm-Menu-itemLabel"},t)}renderShortcut(e){let t=this.formatShortcut(e);return B.div({className:"lm-Menu-itemShortcut"},t)}renderSubmenu(e){return B.div({className:"lm-Menu-itemSubmenuIcon"})}createItemClass(e){let t="lm-Menu-item";e.item.isEnabled||(t+=" lm-mod-disabled"),e.item.isToggled&&(t+=" lm-mod-toggled"),e.item.isVisible||(t+=" lm-mod-hidden"),e.active&&(t+=" lm-mod-active"),e.collapsed&&(t+=" lm-mod-collapsed");let n=e.item.className;return n&&(t+=` ${n}`),t}createItemDataset(e){let t,{type:n,command:i,dataset:r}=e.item;return t="command"===n?{...r,type:n,command:i}:{...r,type:n},t}createIconClass(e){let t="lm-Menu-itemIcon",n=e.item.iconClass;return n?`${t} ${n}`:t}createItemARIA(e){let t={};switch(e.item.type){case"separator":t.role="presentation";break;case"submenu":t["aria-haspopup"]="true",e.item.isEnabled||(t["aria-disabled"]="true");break;default:e.item.isEnabled||(t["aria-disabled"]="true"),t.role="menuitem"}return t}formatLabel(e){let{label:t,mnemonic:n}=e.item;if(n<0||n>=t.length)return t;let i=t.slice(0,n),r=t.slice(n+1),s=t[n];return[i,B.span({className:"lm-Menu-itemMnemonic"},s),r]}formatShortcut(e){let t=e.item.keyBinding;return t?M.CommandRegistry.formatKeystroke(t.keys):null}}e.Renderer=t,e.defaultRenderer=new t}(ge||(ge={})),function(e){e.TIMER_DELAY=300,e.SUBMENU_OVERLAP=3;let t=null,n=0;function r(){return n>0?(n--,t):o()}function s(e){return"separator"!==e.type&&e.isEnabled&&e.isVisible}function o(){return{pageXOffset:window.pageXOffset,pageYOffset:window.pageYOffset,clientWidth:document.documentElement.clientWidth,clientHeight:document.documentElement.clientHeight}}e.saveWindowData=function(){t=o(),n++},e.createNode=function(){let e=document.createElement("div"),t=document.createElement("ul");return t.className="lm-Menu-content",e.appendChild(t),t.setAttribute("role","menu"),e.tabIndex=0,e},e.canActivate=s,e.createItem=function(e,t){return new a(e.commands,t)},e.hitTestMenus=function(e,t,n){for(let i=e;i;i=i.childMenu)if(u.hitTest(i.node,t,n))return!0;return!1},e.computeCollapsed=function(e){let t=new Array(e.length);i.fill(t,!1);let n=0,r=e.length;for(;n=0;--s){let n=e[s];if(n.isVisible){if("separator"!==n.type)break;t[s]=!0}}let o=!1;for(;++na+u&&(t=a+u-f),!s&&n+m>l+d&&(n>l+d?n=l+d-m:n-=m),p.transform=`translate(${Math.max(0,t)}px, ${Math.max(0,n)}px`,p.opacity="1"},e.openSubmenu=function(t,n){const i=r();let s=i.pageXOffset,o=i.pageYOffset,a=i.clientWidth,l=i.clientHeight;g.sendMessage(t,V.Msg.UpdateRequest);let d=l,c=t.node,h=c.style;h.opacity="0",h.maxHeight=`${d}px`,V.attach(t,document.body);let{width:p,height:f}=c.getBoundingClientRect(),m=u.boxSizing(t.node),v=n.getBoundingClientRect(),b=v.right-e.SUBMENU_OVERLAP;b+p>s+a&&(b=v.left+e.SUBMENU_OVERLAP-p);let _=v.top-m.borderTop-m.paddingTop;_+f>o+l&&(_=v.bottom+m.borderBottom+m.paddingBottom-f),h.transform=`translate(${Math.max(0,b)}px, ${Math.max(0,_)}px`,h.opacity="1"},e.findMnemonic=function(e,t,n){let i=-1,r=-1,o=!1,a=t.toUpperCase();for(let t=0,l=e.length;t=0&&hn.command===e&&A.JSONExt.deepEqual(n.args,t)))||null}return null}}}(ie||(ie={})),function(e){function t(e,t){let n=e.rank,i=t.rank;return n!==i?n=this._titles.length)&&(e=-1),this._currentIndex===e)return;let t=this._currentIndex,n=this._titles[t]||null,i=e,r=this._titles[i]||null;this._currentIndex=i,this._previousTitle=n,this.update(),this._currentChanged.emit({previousIndex:t,previousTitle:n,currentIndex:i,currentTitle:r})}get name(){return this._name}set name(e){this._name=e,e?this.contentNode.setAttribute("aria-label",e):this.contentNode.removeAttribute("aria-label")}get orientation(){return this._orientation}set orientation(e){this._orientation!==e&&(this._releaseMouse(),this._orientation=e,this.dataset.orientation=e,this.contentNode.setAttribute("aria-orientation",e))}get addButtonEnabled(){return this._addButtonEnabled}set addButtonEnabled(e){this._addButtonEnabled!==e&&(this._addButtonEnabled=e,e?this.addButtonNode.classList.remove("lm-mod-hidden"):this.addButtonNode.classList.add("lm-mod-hidden"))}get titles(){return this._titles}get contentNode(){return this.node.getElementsByClassName("lm-TabBar-content")[0]}get addButtonNode(){return this.node.getElementsByClassName("lm-TabBar-addButton")[0]}addTab(e){return this.insertTab(this._titles.length,e)}insertTab(e,t){this._releaseMouse();let n=ve.asTitle(t),r=this._titles.indexOf(n),s=Math.max(0,Math.min(e,this._titles.length));return-1===r?(i.insert(this._titles,s,n),n.changed.connect(this._onTitleChanged,this),this.update(),this._adjustCurrentForInsert(s,n),n):(s===this._titles.length&&s--,r===s||(i.move(this._titles,r,s),this.update(),this._adjustCurrentForMove(r,s)),n)}removeTab(e){this.removeTabAt(this._titles.indexOf(e))}removeTabAt(e){this._releaseMouse();let t=i.removeAt(this._titles,e);t&&(t.changed.disconnect(this._onTitleChanged,this),t===this._previousTitle&&(this._previousTitle=null),this.update(),this._adjustCurrentForRemove(e,t))}clearTabs(){if(0===this._titles.length)return;this._releaseMouse();for(let e of this._titles)e.changed.disconnect(this._onTitleChanged,this);let e=this.currentIndex,t=this.currentTitle;this._currentIndex=-1,this._previousTitle=null,this._titles.length=0,this.update(),-1!==e&&this._currentChanged.emit({previousIndex:e,previousTitle:t,currentIndex:-1,currentTitle:null})}releaseMouse(){this._releaseMouse()}handleEvent(e){switch(e.type){case"pointerdown":this._evtPointerDown(e);break;case"pointermove":this._evtPointerMove(e);break;case"pointerup":this._evtPointerUp(e);break;case"dblclick":this._evtDblClick(e);break;case"keydown":e.eventPhase===Event.CAPTURING_PHASE?this._evtKeyDownCapturing(e):this._evtKeyDown(e);break;case"contextmenu":e.preventDefault(),e.stopPropagation()}}onBeforeAttach(e){this.node.addEventListener("pointerdown",this),this.node.addEventListener("dblclick",this),this.node.addEventListener("keydown",this)}onAfterDetach(e){this.node.removeEventListener("pointerdown",this),this.node.removeEventListener("dblclick",this),this.node.removeEventListener("keydown",this),this._releaseMouse()}onUpdateRequest(e){var t;let n=this._titles,i=this.renderer,r=this.currentTitle,s=new Array(n.length);const o=null!==(t=this._getCurrentTabindex())&&void 0!==t?t:this._currentIndex>-1?this._currentIndex:0;for(let e=0,t=n.length;eu.hitTest(t,e.clientX,e.clientY)));if(-1===n)return;let r=this.titles[n],s=t[n].querySelector(".lm-TabBar-tabLabel");if(s&&s.contains(e.target)){let e=r.label||"",t=s.innerHTML;s.innerHTML="";let n=document.createElement("input");n.classList.add("lm-TabBar-tabInput"),n.value=e,s.appendChild(n);let i=()=>{n.removeEventListener("blur",i),s.innerHTML=t,this.node.addEventListener("keydown",this)};n.addEventListener("dblclick",(e=>e.stopPropagation())),n.addEventListener("blur",i),n.addEventListener("keydown",(e=>{"Enter"===e.key?(""!==n.value&&(r.label=r.caption=n.value),i()):"Escape"===e.key&&i()})),this.node.removeEventListener("keydown",this),n.select(),n.focus(),s.children.length>0&&s.children[0].focus()}}_evtKeyDownCapturing(e){e.eventPhase===Event.CAPTURING_PHASE&&(e.preventDefault(),e.stopPropagation(),"Escape"===e.key&&this._releaseMouse())}_evtKeyDown(e){var t,n,r;if("Tab"!==e.key&&e.eventPhase!==Event.CAPTURING_PHASE)if("Enter"===e.key||"Spacebar"===e.key||" "===e.key){const t=document.activeElement;if(this.addButtonEnabled&&this.addButtonNode.contains(t))e.preventDefault(),e.stopPropagation(),this._addRequested.emit();else{const n=i.findFirstIndex(this.contentNode.children,(e=>e.contains(t)));n>=0&&(e.preventDefault(),e.stopPropagation(),this.currentIndex=n)}}else if(fe.includes(e.key)){const i=[...this.contentNode.children];if(this.addButtonEnabled&&i.push(this.addButtonNode),i.length<=1)return;e.preventDefault(),e.stopPropagation();let s,o=i.indexOf(document.activeElement);-1===o&&(o=this._currentIndex),"ArrowRight"===e.key&&"horizontal"===this._orientation||"ArrowDown"===e.key&&"vertical"===this._orientation?s=null!==(t=i[o+1])&&void 0!==t?t:i[0]:"ArrowLeft"===e.key&&"horizontal"===this._orientation||"ArrowUp"===e.key&&"vertical"===this._orientation?s=null!==(n=i[o-1])&&void 0!==n?n:i[i.length-1]:"Home"===e.key?s=i[0]:"End"===e.key&&(s=i[i.length-1]),s&&(null===(r=i[o])||void 0===r||r.setAttribute("tabindex","-1"),null==s||s.setAttribute("tabindex","0"),s.focus())}}_evtPointerDown(e){if(0!==e.button&&1!==e.button)return;if(this._dragData)return;if(e.target.classList.contains("lm-TabBar-tabInput"))return;let t=this.addButtonEnabled&&this.addButtonNode.contains(e.target),n=this.contentNode.children,r=i.findFirstIndex(n,(t=>u.hitTest(t,e.clientX,e.clientY)));if(-1===r&&!t)return;if(e.preventDefault(),e.stopPropagation(),this._dragData={tab:n[r],index:r,pressX:e.clientX,pressY:e.clientY,tabPos:-1,tabSize:-1,tabPressPos:-1,targetIndex:-1,tabLayout:null,contentRect:null,override:null,dragActive:!1,dragAborted:!1,detachRequested:!1},this.document.addEventListener("pointerup",this,!0),1===e.button||t)return;let s=n[r].querySelector(this.renderer.closeIconSelector);s&&s.contains(e.target)||(this.tabsMovable&&(this.document.addEventListener("pointermove",this,!0),this.document.addEventListener("keydown",this,!0),this.document.addEventListener("contextmenu",this,!0)),this.allowDeselect&&this.currentIndex===r?this.currentIndex=-1:this.currentIndex=r,-1!==this.currentIndex&&this._tabActivateRequested.emit({index:this.currentIndex,title:this.currentTitle}))}_evtPointerMove(e){let t=this._dragData;if(!t)return;e.preventDefault(),e.stopPropagation();let n=this.contentNode.children;if(t.dragActive||ve.dragExceeded(t,e)){if(!t.dragActive){let e=t.tab.getBoundingClientRect();"horizontal"===this._orientation?(t.tabPos=t.tab.offsetLeft,t.tabSize=e.width,t.tabPressPos=t.pressX-e.left):(t.tabPos=t.tab.offsetTop,t.tabSize=e.height,t.tabPressPos=t.pressY-e.top),t.tabPressOffset={x:t.pressX-e.left,y:t.pressY-e.top},t.tabLayout=ve.snapTabLayout(n,this._orientation),t.contentRect=this.contentNode.getBoundingClientRect(),t.override=M.Drag.overrideCursor("default"),t.tab.classList.add("lm-mod-dragging"),this.addClass("lm-mod-dragging"),t.dragActive=!0}if(!t.detachRequested&&ve.detachExceeded(t,e)){t.detachRequested=!0;let i=t.index,r=e.clientX,s=e.clientY,o=n[i],a=this._titles[i];if(this._tabDetachRequested.emit({index:i,title:a,tab:o,clientX:r,clientY:s,offset:t.tabPressOffset}),t.dragAborted)return}ve.layoutTabs(n,t,e,this._orientation)}}_evtPointerUp(e){if(0!==e.button&&1!==e.button)return;const t=this._dragData;if(!t)return;if(e.preventDefault(),e.stopPropagation(),this.document.removeEventListener("pointermove",this,!0),this.document.removeEventListener("pointerup",this,!0),this.document.removeEventListener("keydown",this,!0),this.document.removeEventListener("contextmenu",this,!0),!t.dragActive){if(this._dragData=null,this.addButtonEnabled&&this.addButtonNode.contains(e.target))return void this._addRequested.emit(void 0);let n=this.contentNode.children,r=i.findFirstIndex(n,(t=>u.hitTest(t,e.clientX,e.clientY)));if(r!==t.index)return;let s=this._titles[r];if(!s.closable)return;if(1===e.button)return void this._tabCloseRequested.emit({index:r,title:s});let o=n[r].querySelector(this.renderer.closeIconSelector);return o&&o.contains(e.target)?void this._tabCloseRequested.emit({index:r,title:s}):void 0}if(0!==e.button)return;ve.finalizeTabPosition(t,this._orientation),t.tab.classList.remove("lm-mod-dragging");let n=ve.parseTransitionDuration(t.tab);setTimeout((()=>{if(t.dragAborted)return;this._dragData=null,ve.resetTabPositions(this.contentNode.children,this._orientation),t.override.dispose(),this.removeClass("lm-mod-dragging");let e=t.index,n=t.targetIndex;-1!==n&&e!==n&&(i.move(this._titles,e,n),this._adjustCurrentForMove(e,n),this._tabMoved.emit({fromIndex:e,toIndex:n,title:this._titles[n]}),g.sendMessage(this,V.Msg.UpdateRequest))}),n)}_releaseMouse(){let e=this._dragData;e&&(this._dragData=null,this.document.removeEventListener("pointermove",this,!0),this.document.removeEventListener("pointerup",this,!0),this.document.removeEventListener("keydown",this,!0),this.document.removeEventListener("contextmenu",this,!0),e.dragAborted=!0,e.dragActive&&(ve.resetTabPositions(this.contentNode.children,this._orientation),e.override.dispose(),e.tab.classList.remove("lm-mod-dragging"),this.removeClass("lm-mod-dragging")))}_adjustCurrentForInsert(e,t){let n=this.currentTitle,i=this._currentIndex,r=this.insertBehavior;if("select-tab"===r||"select-tab-if-needed"===r&&-1===i)return this._currentIndex=e,this._previousTitle=n,void this._currentChanged.emit({previousIndex:i,previousTitle:n,currentIndex:e,currentTitle:t});i>=e&&this._currentIndex++}_adjustCurrentForMove(e,t){this._currentIndex===e?this._currentIndex=t:this._currentIndex=t?this._currentIndex++:this._currentIndex>e&&this._currentIndex<=t&&this._currentIndex--}_adjustCurrentForRemove(e,t){let n=this._currentIndex,i=this.removeBehavior;if(n===e){if(0===this._titles.length)return this._currentIndex=-1,void this._currentChanged.emit({previousIndex:e,previousTitle:t,currentIndex:-1,currentTitle:null});if("select-tab-after"===i)return this._currentIndex=Math.min(e,this._titles.length-1),void this._currentChanged.emit({previousIndex:e,previousTitle:t,currentIndex:this._currentIndex,currentTitle:this.currentTitle});if("select-tab-before"===i)return this._currentIndex=Math.max(0,e-1),void this._currentChanged.emit({previousIndex:e,previousTitle:t,currentIndex:this._currentIndex,currentTitle:this.currentTitle});if("select-previous-tab"===i)return this._previousTitle?(this._currentIndex=this._titles.indexOf(this._previousTitle),this._previousTitle=null):this._currentIndex=Math.min(e,this._titles.length-1),void this._currentChanged.emit({previousIndex:e,previousTitle:t,currentIndex:this._currentIndex,currentTitle:this.currentTitle});this._currentIndex=-1,this._currentChanged.emit({previousIndex:e,previousTitle:t,currentIndex:-1,currentTitle:null})}else n>e&&this._currentIndex--}_onTitleChanged(e){this.update()}}var ve,be,_e,Ae,ye,we,Ce,Ee;!function(e){class t{constructor(){this.closeIconSelector=".lm-TabBar-tabCloseIcon",this._tabID=0,this._tabKeys=new WeakMap,this._uuid=++t._nInstance}renderTab(e){let t=e.title.caption,n=this.createTabKey(e),i=n,r=this.createTabStyle(e),s=this.createTabClass(e),o=this.createTabDataset(e),a=this.createTabARIA(e);return e.title.closable?B.li({id:i,key:n,className:s,title:t,style:r,dataset:o,...a},this.renderIcon(e),this.renderLabel(e),this.renderCloseIcon(e)):B.li({id:i,key:n,className:s,title:t,style:r,dataset:o,...a},this.renderIcon(e),this.renderLabel(e))}renderIcon(e){const{title:t}=e;let n=this.createIconClass(e);return B.div({className:n},t.icon,t.iconLabel)}renderLabel(e){return B.div({className:"lm-TabBar-tabLabel"},e.title.label)}renderCloseIcon(e){return B.div({className:"lm-TabBar-tabCloseIcon"})}createTabKey(e){let t=this._tabKeys.get(e.title);return void 0===t&&(t=`tab-key-${this._uuid}-${this._tabID++}`,this._tabKeys.set(e.title,t)),t}createTabStyle(e){return{zIndex:`${e.zIndex}`}}createTabClass(e){let t="lm-TabBar-tab";return e.title.className&&(t+=` ${e.title.className}`),e.title.closable&&(t+=" lm-mod-closable"),e.current&&(t+=" lm-mod-current"),t}createTabDataset(e){return e.title.dataset}createTabARIA(e){var t;return{role:"tab","aria-selected":e.current.toString(),tabindex:`${null!==(t=e.tabIndex)&&void 0!==t?t:"-1"}`}}createIconClass(e){let t="lm-TabBar-tabIcon",n=e.title.iconClass;return n?`${t} ${n}`:t}}t._nInstance=0,e.Renderer=t,e.defaultRenderer=new t,e.addButtonSelector=".lm-TabBar-addButton"}(me||(me={})),function(e){e.DRAG_THRESHOLD=5,e.DETACH_THRESHOLD=20,e.createNode=function(){let e=document.createElement("div"),t=document.createElement("ul");t.setAttribute("role","tablist"),t.className="lm-TabBar-content",e.appendChild(t);let n=document.createElement("div");return n.className="lm-TabBar-addButton lm-mod-hidden",n.setAttribute("tabindex","-1"),n.setAttribute("role","button"),e.appendChild(n),e},e.asTitle=function(e){return e instanceof H?e:new H(e)},e.parseTransitionDuration=function(e){let t=window.getComputedStyle(e);return 1e3*(parseFloat(t.transitionDuration)||0)},e.snapTabLayout=function(e,t){let n=new Array(e.length);for(let i=0,r=e.length;i=e.DRAG_THRESHOLD||r>=e.DRAG_THRESHOLD},e.detachExceeded=function(t,n){let i=t.contentRect;return n.clientX=i.right+e.DETACH_THRESHOLD||n.clientY=i.bottom+e.DETACH_THRESHOLD},e.layoutTabs=function(e,t,n,i){let r,s,o,a;"horizontal"===i?(r=t.pressX,s=n.clientX-t.contentRect.left,o=n.clientX,a=t.contentRect.width):(r=t.pressY,s=n.clientY-t.contentRect.top,o=n.clientY,a=t.contentRect.height);let l=t.index,u=s-t.tabPressPos,d=u+t.tabSize;for(let n=0,s=e.length;n>1);if(nt.index&&d>h)s=-t.tabSize-c.margin+"px",l=Math.max(l,n);else if(n===t.index){let e=o-r,n=a-(t.tabPos+t.tabSize);s=`${Math.max(-t.tabPos,Math.min(e,n))}px`}else s="";"horizontal"===i?e[n].style.left=s:e[n].style.top=s}t.targetIndex=l},e.finalizeTabPosition=function(e,t){let n,i;if(n="horizontal"===t?e.contentRect.width:e.contentRect.height,e.targetIndex===e.index)i=0;else if(e.targetIndex>e.index){let t=e.tabLayout[e.targetIndex];i=t.pos+t.size-e.tabSize-e.tabPos}else i=e.tabLayout[e.targetIndex].pos-e.tabPos;let r=n-(e.tabPos+e.tabSize),s=Math.max(-e.tabPos,Math.min(i,r));"horizontal"===t?e.tab.style.left=`${s}px`:e.tab.style.top=`${s}px`},e.resetTabPositions=function(e,t){for(const n of e)"horizontal"===t?n.style.left="":n.style.top=""}}(ve||(ve={}));class xe extends q{constructor(e){super(),this._spacing=4,this._dirty=!1,this._root=null,this._box=null,this._items=new Map,this.renderer=e.renderer,void 0!==e.spacing&&(this._spacing=se.clampDimension(e.spacing)),this._document=e.document||document,this._hiddenMode=void 0!==e.hiddenMode?e.hiddenMode:V.HiddenMode.Display}dispose(){let e=this[Symbol.iterator]();this._items.forEach((e=>{e.dispose()})),this._box=null,this._root=null,this._items.clear();for(const t of e)t.dispose();super.dispose()}get hiddenMode(){return this._hiddenMode}set hiddenMode(e){if(this._hiddenMode!==e){this._hiddenMode=e;for(const e of this.tabBars())if(e.titles.length>1)for(const t of e.titles)t.owner.hiddenMode=this._hiddenMode}}get spacing(){return this._spacing}set spacing(e){e=se.clampDimension(e),this._spacing!==e&&(this._spacing=e,this.parent&&this.parent.fit())}get isEmpty(){return null===this._root}[Symbol.iterator](){return this._root?this._root.iterAllWidgets():o()}widgets(){return this._root?this._root.iterUserWidgets():o()}selectedWidgets(){return this._root?this._root.iterSelectedWidgets():o()}tabBars(){return this._root?this._root.iterTabBars():o()}handles(){return this._root?this._root.iterHandles():o()}moveHandle(e,t,n){let i=e.classList.contains("lm-mod-hidden");if(!this._root||i)return;let r,s=this._root.findSplitNode(e);s&&(r="horizontal"===s.node.orientation?t-e.offsetLeft:n-e.offsetTop,0!==r&&(s.node.holdSizes(),F.adjust(s.node.sizers,s.index,r),this.parent&&this.parent.update()))}saveLayout(){return this._root?(this._root.holdAllSizes(),{main:this._root.createConfig()}):{main:null}}restoreLayout(e){let t,n=new Set;t=e.main?be.normalizeAreaConfig(e.main,n):null;let i=this.widgets(),r=this.tabBars(),s=this.handles();this._root=null;for(const e of i)n.has(e)||(e.parent=null);for(const e of r)e.dispose();for(const e of s)e.parentNode&&e.parentNode.removeChild(e);for(const e of n)e.parent=this.parent;this._root=t?be.realizeAreaConfig(t,{createTabBar:e=>this._createTabBar(),createHandle:()=>this._createHandle()},this._document):null,this.parent&&(n.forEach((e=>{this.attachWidget(e)})),this.parent.fit())}addWidget(e,t={}){let n=t.ref||null,i=t.mode||"tab-after",r=null;if(this._root&&n&&(r=this._root.findTabNode(n)),n&&!r)throw new Error("Reference widget is not in the layout.");switch(e.parent=this.parent,i){case"tab-after":this._insertTab(e,n,r,!0);break;case"tab-before":this._insertTab(e,n,r,!1);break;case"split-top":this._insertSplit(e,n,r,"vertical",!1);break;case"split-left":this._insertSplit(e,n,r,"horizontal",!1);break;case"split-right":this._insertSplit(e,n,r,"horizontal",!0);break;case"split-bottom":this._insertSplit(e,n,r,"vertical",!0);break;case"merge-top":this._insertSplit(e,n,r,"vertical",!1,!0);break;case"merge-left":this._insertSplit(e,n,r,"horizontal",!1,!0);break;case"merge-right":this._insertSplit(e,n,r,"horizontal",!0,!0);break;case"merge-bottom":this._insertSplit(e,n,r,"vertical",!0,!0)}this.parent&&(this.attachWidget(e),this.parent.fit())}removeWidget(e){this._removeWidget(e),this.parent&&(this.detachWidget(e),this.parent.fit())}hitTestTabAreas(e,t){if(!this._root||!this.parent||!this.parent.isVisible)return null;this._box||(this._box=u.boxSizing(this.parent.node));let n=this.parent.node.getBoundingClientRect(),i=e-n.left-this._box.borderLeft,r=t-n.top-this._box.borderTop,s=this._root.hitTestTabNodes(i,r);if(!s)return null;let{tabBar:o,top:a,left:l,width:d,height:c}=s,h=this._box.borderLeft+this._box.borderRight,p=this._box.borderTop+this._box.borderBottom;return{tabBar:o,x:i,y:r,top:a,left:l,right:n.width-h-(l+d),bottom:n.height-p-(a+c),width:d,height:c}}init(){super.init();for(const e of this)this.attachWidget(e);for(const e of this.handles())this.parent.node.appendChild(e);this.parent.fit()}attachWidget(e){this.parent.node!==e.node.parentNode&&(this._items.set(e,new G(e)),this.parent.isAttached&&g.sendMessage(e,V.Msg.BeforeAttach),this.parent.node.appendChild(e.node),this.parent.isAttached&&g.sendMessage(e,V.Msg.AfterAttach))}detachWidget(e){if(this.parent.node!==e.node.parentNode)return;this.parent.isAttached&&g.sendMessage(e,V.Msg.BeforeDetach),this.parent.node.removeChild(e.node),this.parent.isAttached&&g.sendMessage(e,V.Msg.AfterDetach);let t=this._items.get(e);t&&(this._items.delete(e),t.dispose())}onBeforeShow(e){super.onBeforeShow(e),this.parent.update()}onBeforeAttach(e){super.onBeforeAttach(e),this.parent.fit()}onChildShown(e){this.parent.fit()}onChildHidden(e){this.parent.fit()}onResize(e){this.parent.isVisible&&this._update(e.width,e.height)}onUpdateRequest(e){this.parent.isVisible&&this._update(-1,-1)}onFitRequest(e){this.parent.isAttached&&this._fit()}_removeWidget(e){if(!this._root)return;let t=this._root.findTabNode(e);if(!t)return;if(be.removeAria(e),t.tabBar.titles.length>1)return t.tabBar.removeTab(e.title),void(this._hiddenMode===V.HiddenMode.Scale&&1==t.tabBar.titles.length&&(t.tabBar.titles[0].owner.hiddenMode=V.HiddenMode.Display));if(t.tabBar.dispose(),this._root===t)return void(this._root=null);this._root.holdAllSizes();let n=t.parent;t.parent=null;let r=i.removeFirstOf(n.children,t),s=i.removeAt(n.handles,r);if(i.removeAt(n.sizers,r),s.parentNode&&s.parentNode.removeChild(s),n.children.length>1)return void n.syncHandles();let o=n.parent;n.parent=null;let a=n.children[0],l=n.handles[0];if(n.children.length=0,n.handles.length=0,n.sizers.length=0,l.parentNode&&l.parentNode.removeChild(l),this._root===n)return a.parent=null,void(this._root=a);let u=o,d=u.children.indexOf(n);if(a instanceof be.TabLayoutNode)return a.parent=u,void(u.children[d]=a);let c=i.removeAt(u.handles,d);i.removeAt(u.children,d),i.removeAt(u.sizers,d),c.parentNode&&c.parentNode.removeChild(c);for(let e=0,t=a.children.length;e=n.length)&&(i=0),{type:"tab-area",widgets:n,currentIndex:i}}(t,n):function(t,n){let i=t.orientation,r=[],s=[];for(let o=0,a=t.children.length;o{let l=r(i,n,s),u=t(e.sizes[a]),d=n.createHandle();o.children.push(l),o.handles.push(d),o.sizers.push(u),l.parent=o})),o.syncHandles(),o.normalizeSizes(),o}(s,o,a),l};class n{constructor(e){this.parent=null,this._top=0,this._left=0,this._width=0,this._height=0;let t=new W,n=new W;t.stretch=0,n.stretch=1,this.tabBar=e,this.sizers=[t,n]}get top(){return this._top}get left(){return this._left}get width(){return this._width}get height(){return this._height}*iterAllWidgets(){yield this.tabBar,yield*this.iterUserWidgets()}*iterUserWidgets(){for(const e of this.tabBar.titles)yield e.owner}*iterSelectedWidgets(){let e=this.tabBar.currentTitle;e&&(yield e.owner)}*iterTabBars(){yield this.tabBar}*iterHandles(){}findTabNode(e){return-1!==this.tabBar.titles.indexOf(e.title)?this:null}findSplitNode(e){return null}findFirstTabNode(){return this}hitTestTabNodes(e,t){return e=this._left+this._width||t=this._top+this._height?null:this}createConfig(){return{type:"tab-area",widgets:this.tabBar.titles.map((e=>e.owner)),currentIndex:this.tabBar.currentIndex}}holdAllSizes(){}fit(e,t){let n=0,i=0,r=t.get(this.tabBar),s=this.tabBar.currentTitle,o=s?t.get(s.owner):void 0,[a,l]=this.sizers;return r&&r.fit(),o&&o.fit(),r&&!r.isHidden?(n=Math.max(n,r.minWidth),i+=r.minHeight,a.minSize=r.minHeight,a.maxSize=r.maxHeight):(a.minSize=0,a.maxSize=0),o&&!o.isHidden?(n=Math.max(n,o.minWidth),i+=o.minHeight,l.minSize=o.minHeight,l.maxSize=1/0):(l.minSize=0,l.maxSize=1/0),{minWidth:n,minHeight:i,maxWidth:1/0,maxHeight:1/0}}update(e,t,n,i,r,s){this._top=t,this._left=e,this._width=n,this._height=i;let o=s.get(this.tabBar),a=this.tabBar.currentTitle,l=a?s.get(a.owner):void 0;if(F.calc(this.sizers,i),o&&!o.isHidden){let i=this.sizers[0].size;o.update(e,t,n,i),t+=i}if(l&&!l.isHidden){let i=this.sizers[1].size;l.update(e,t,n,i)}}}e.TabLayoutNode=n;class i{constructor(e){this.parent=null,this.normalized=!1,this.children=[],this.sizers=[],this.handles=[],this.orientation=e}*iterAllWidgets(){for(const e of this.children)yield*e.iterAllWidgets()}*iterUserWidgets(){for(const e of this.children)yield*e.iterUserWidgets()}*iterSelectedWidgets(){for(const e of this.children)yield*e.iterSelectedWidgets()}*iterTabBars(){for(const e of this.children)yield*e.iterTabBars()}*iterHandles(){yield*this.handles;for(const e of this.children)yield*e.iterHandles()}findTabNode(e){for(let t=0,n=this.children.length;te.createConfig())),sizes:t}}syncHandles(){this.handles.forEach(((e,t)=>{e.setAttribute("data-orientation",this.orientation),t===this.handles.length-1?e.classList.add("lm-mod-hidden"):e.classList.remove("lm-mod-hidden")}))}holdSizes(){for(const e of this.sizers)e.sizeHint=e.size}holdAllSizes(){for(const e of this.children)e.holdAllSizes();this.holdSizes()}normalizeSizes(){let e=this.sizers.length;if(0===e)return;this.holdSizes();let t=this.sizers.reduce(((e,t)=>e+t.sizeHint),0);if(0===t)for(const t of this.sizers)t.size=t.sizeHint=1/e;else for(const e of this.sizers)e.size=e.sizeHint/=t;this.normalized=!0}createNormalizedSizes(){let e=this.sizers.length;if(0===e)return[];let t=this.sizers.map((e=>e.size)),n=t.reduce(((e,t)=>e+t),0);if(0===n)for(let n=t.length-1;n>-1;n--)t[n]=1/e;else for(let e=t.length-1;e>-1;e--)t[e]/=n;return t}fit(e,t){let n="horizontal"===this.orientation,i=Math.max(0,this.children.length-1)*e,r=n?i:0,s=n?0:i;for(let i=0,o=this.children.length;ithis._createTabBar(),createHandle:()=>this._createHandle()};this.layout=new xe({document:this._document,renderer:t,spacing:e.spacing,hiddenMode:e.hiddenMode}),this.overlay=e.overlay||new De.Overlay,this.node.appendChild(this.overlay.node)}dispose(){this._releaseMouse(),this.overlay.hide(0),this._drag&&this._drag.dispose(),super.dispose()}get hiddenMode(){return this.layout.hiddenMode}set hiddenMode(e){this.layout.hiddenMode=e}get layoutModified(){return this._layoutModified}get addRequested(){return this._addRequested}get renderer(){return this.layout.renderer}get spacing(){return this.layout.spacing}set spacing(e){this.layout.spacing=e}get mode(){return this._mode}set mode(e){if(this._mode===e)return;this._mode=e,this.dataset.mode=e;let t=this.layout;switch(e){case"multiple-document":for(const e of t.tabBars())e.show();break;case"single-document":t.restoreLayout(_e.createSingleDocumentConfig(this));break;default:throw"unreachable"}g.postMessage(this,_e.LayoutModified)}get tabsMovable(){return this._tabsMovable}set tabsMovable(e){this._tabsMovable=e;for(const t of this.tabBars())t.tabsMovable=e}get tabsConstrained(){return this._tabsConstrained}set tabsConstrained(e){this._tabsConstrained=e}get addButtonEnabled(){return this._addButtonEnabled}set addButtonEnabled(e){this._addButtonEnabled=e;for(const t of this.tabBars())t.addButtonEnabled=e}get isEmpty(){return this.layout.isEmpty}*widgets(){yield*this.layout.widgets()}*selectedWidgets(){yield*this.layout.selectedWidgets()}*tabBars(){yield*this.layout.tabBars()}*handles(){yield*this.layout.handles()}selectWidget(e){let t=a(this.tabBars(),(t=>-1!==t.titles.indexOf(e.title)));if(!t)throw new Error("Widget is not contained in the dock panel.");t.currentTitle=e.title}activateWidget(e){this.selectWidget(e),e.activate()}saveLayout(){return this.layout.saveLayout()}restoreLayout(e){this._mode="multiple-document",this.layout.restoreLayout(e),(d.IS_EDGE||d.IS_IE)&&g.flush(),g.postMessage(this,_e.LayoutModified)}addWidget(e,t={}){"single-document"===this._mode?this.layout.addWidget(e):this.layout.addWidget(e,t),g.postMessage(this,_e.LayoutModified)}processMessage(e){"layout-modified"===e.type?this._layoutModified.emit(void 0):super.processMessage(e)}handleEvent(e){switch(e.type){case"lm-dragenter":this._evtDragEnter(e);break;case"lm-dragleave":this._evtDragLeave(e);break;case"lm-dragover":this._evtDragOver(e);break;case"lm-drop":this._evtDrop(e);break;case"pointerdown":this._evtPointerDown(e);break;case"pointermove":this._evtPointerMove(e);break;case"pointerup":this._evtPointerUp(e);break;case"keydown":this._evtKeyDown(e);break;case"contextmenu":e.preventDefault(),e.stopPropagation()}}onBeforeAttach(e){this.node.addEventListener("lm-dragenter",this),this.node.addEventListener("lm-dragleave",this),this.node.addEventListener("lm-dragover",this),this.node.addEventListener("lm-drop",this),this.node.addEventListener("pointerdown",this)}onAfterDetach(e){this.node.removeEventListener("lm-dragenter",this),this.node.removeEventListener("lm-dragleave",this),this.node.removeEventListener("lm-dragover",this),this.node.removeEventListener("lm-drop",this),this.node.removeEventListener("pointerdown",this),this._releaseMouse()}onChildAdded(e){_e.isGeneratedTabBarProperty.get(e.child)||e.child.addClass("lm-DockPanel-widget")}onChildRemoved(e){_e.isGeneratedTabBarProperty.get(e.child)||(e.child.removeClass("lm-DockPanel-widget"),g.postMessage(this,_e.LayoutModified))}_evtDragEnter(e){e.mimeData.hasData("application/vnd.lumino.widget-factory")&&(e.preventDefault(),e.stopPropagation())}_evtDragLeave(e){e.preventDefault(),this._tabsConstrained&&e.source!==this||(e.stopPropagation(),this.overlay.hide(1))}_evtDragOver(e){e.preventDefault(),this._tabsConstrained&&e.source!==this||"invalid"===this._showOverlay(e.clientX,e.clientY)?e.dropAction="none":(e.stopPropagation(),e.dropAction=e.proposedAction)}_evtDrop(e){if(e.preventDefault(),this.overlay.hide(0),"none"===e.proposedAction)return void(e.dropAction="none");let{clientX:t,clientY:n}=e,{zone:i,target:r}=_e.findDropTarget(this,t,n,this._edges);if(this._tabsConstrained&&e.source!==this||"invalid"===i)return void(e.dropAction="none");let s=e.mimeData.getData("application/vnd.lumino.widget-factory");if("function"!=typeof s)return void(e.dropAction="none");let o=s();if(!(o instanceof V))return void(e.dropAction="none");if(o.contains(this))return void(e.dropAction="none");let a=r?_e.getDropRef(r.tabBar):null;switch(i){case"root-all":this.addWidget(o);break;case"root-top":this.addWidget(o,{mode:"split-top"});break;case"root-left":this.addWidget(o,{mode:"split-left"});break;case"root-right":this.addWidget(o,{mode:"split-right"});break;case"root-bottom":this.addWidget(o,{mode:"split-bottom"});break;case"widget-all":case"widget-tab":this.addWidget(o,{mode:"tab-after",ref:a});break;case"widget-top":this.addWidget(o,{mode:"split-top",ref:a});break;case"widget-left":this.addWidget(o,{mode:"split-left",ref:a});break;case"widget-right":this.addWidget(o,{mode:"split-right",ref:a});break;case"widget-bottom":this.addWidget(o,{mode:"split-bottom",ref:a});break;default:throw"unreachable"}e.dropAction=e.proposedAction,e.stopPropagation(),this.activateWidget(o)}_evtKeyDown(e){e.preventDefault(),e.stopPropagation(),27===e.keyCode&&(this._releaseMouse(),g.postMessage(this,_e.LayoutModified))}_evtPointerDown(e){if(0!==e.button)return;let t=this.layout,n=e.target,i=a(t.handles(),(e=>e.contains(n)));if(!i)return;e.preventDefault(),e.stopPropagation(),this._document.addEventListener("keydown",this,!0),this._document.addEventListener("pointerup",this,!0),this._document.addEventListener("pointermove",this,!0),this._document.addEventListener("contextmenu",this,!0);let r=i.getBoundingClientRect(),s=e.clientX-r.left,o=e.clientY-r.top,l=window.getComputedStyle(i),u=M.Drag.overrideCursor(l.cursor,this._document);this._pressData={handle:i,deltaX:s,deltaY:o,override:u}}_evtPointerMove(e){if(!this._pressData)return;e.preventDefault(),e.stopPropagation();let t=this.node.getBoundingClientRect(),n=e.clientX-t.left-this._pressData.deltaX,i=e.clientY-t.top-this._pressData.deltaY;this.layout.moveHandle(this._pressData.handle,n,i)}_evtPointerUp(e){0===e.button&&(e.preventDefault(),e.stopPropagation(),this._releaseMouse(),g.postMessage(this,_e.LayoutModified))}_releaseMouse(){this._pressData&&(this._pressData.override.dispose(),this._pressData=null,this._document.removeEventListener("keydown",this,!0),this._document.removeEventListener("pointerup",this,!0),this._document.removeEventListener("pointermove",this,!0),this._document.removeEventListener("contextmenu",this,!0))}_showOverlay(e,t){let n,i,r,s,{zone:o,target:a}=_e.findDropTarget(this,e,t,this._edges);if("invalid"===o)return this.overlay.hide(100),o;let l=u.boxSizing(this.node),d=this.node.getBoundingClientRect();switch(o){case"root-all":n=l.paddingTop,i=l.paddingLeft,r=l.paddingRight,s=l.paddingBottom;break;case"root-top":n=l.paddingTop,i=l.paddingLeft,r=l.paddingRight,s=d.height*_e.GOLDEN_RATIO;break;case"root-left":n=l.paddingTop,i=l.paddingLeft,r=d.width*_e.GOLDEN_RATIO,s=l.paddingBottom;break;case"root-right":n=l.paddingTop,i=d.width*_e.GOLDEN_RATIO,r=l.paddingRight,s=l.paddingBottom;break;case"root-bottom":n=d.height*_e.GOLDEN_RATIO,i=l.paddingLeft,r=l.paddingRight,s=l.paddingBottom;break;case"widget-all":n=a.top,i=a.left,r=a.right,s=a.bottom;break;case"widget-top":n=a.top,i=a.left,r=a.right,s=a.bottom+a.height/2;break;case"widget-left":n=a.top,i=a.left,r=a.right+a.width/2,s=a.bottom;break;case"widget-right":n=a.top,i=a.left+a.width/2,r=a.right,s=a.bottom;break;case"widget-bottom":n=a.top+a.height/2,i=a.left,r=a.right,s=a.bottom;break;case"widget-tab":{const e=a.tabBar.node.getBoundingClientRect().height;n=a.top,i=a.left,r=a.right,s=a.bottom+a.height-e;break}default:throw"unreachable"}return this.overlay.show({top:n,left:i,right:r,bottom:s}),o}_createTabBar(){let e=this._renderer.createTabBar(this._document);return _e.isGeneratedTabBarProperty.set(e,!0),"single-document"===this._mode&&e.hide(),e.tabsMovable=this._tabsMovable,e.allowDeselect=!1,e.addButtonEnabled=this._addButtonEnabled,e.removeBehavior="select-previous-tab",e.insertBehavior="select-tab-if-needed",e.tabMoved.connect(this._onTabMoved,this),e.currentChanged.connect(this._onCurrentChanged,this),e.tabCloseRequested.connect(this._onTabCloseRequested,this),e.tabDetachRequested.connect(this._onTabDetachRequested,this),e.tabActivateRequested.connect(this._onTabActivateRequested,this),e.addRequested.connect(this._onTabAddRequested,this),e}_createHandle(){return this._renderer.createHandle()}_onTabMoved(){g.postMessage(this,_e.LayoutModified)}_onCurrentChanged(e,t){let{previousTitle:n,currentTitle:i}=t;n&&n.owner.hide(),i&&i.owner.show(),(d.IS_EDGE||d.IS_IE)&&g.flush(),g.postMessage(this,_e.LayoutModified)}_onTabAddRequested(e){this._addRequested.emit(e)}_onTabActivateRequested(e,t){t.title.owner.activate()}_onTabCloseRequested(e,t){t.title.owner.close()}_onTabDetachRequested(e,t){if(this._drag)return;e.releaseMouse();let{title:n,tab:i,clientX:r,clientY:s,offset:o}=t,a=new A.MimeData;a.setData("application/vnd.lumino.widget-factory",(()=>n.owner));let l=i.cloneNode(!0);o&&(l.style.top=`-${o.y}px`,l.style.left=`-${o.x}px`),this._drag=new M.Drag({document:this._document,mimeData:a,dragImage:l,proposedAction:"move",supportedActions:"move",source:this}),i.classList.add("lm-mod-hidden"),this._drag.start(r,s).then((()=>{this._drag=null,i.classList.remove("lm-mod-hidden")}))}}!function(e){e.Overlay=class{constructor(){this._timer=-1,this._hidden=!0,this.node=document.createElement("div"),this.node.classList.add("lm-DockPanel-overlay"),this.node.classList.add("lm-mod-hidden"),this.node.style.position="absolute",this.node.style.contain="strict"}show(e){let t=this.node.style;t.top=`${e.top}px`,t.left=`${e.left}px`,t.right=`${e.right}px`,t.bottom=`${e.bottom}px`,clearTimeout(this._timer),this._timer=-1,this._hidden&&(this._hidden=!1,this.node.classList.remove("lm-mod-hidden"))}hide(e){if(!this._hidden)return e<=0?(clearTimeout(this._timer),this._timer=-1,this._hidden=!0,void this.node.classList.add("lm-mod-hidden")):void(-1===this._timer&&(this._timer=window.setTimeout((()=>{this._timer=-1,this._hidden=!0,this.node.classList.add("lm-mod-hidden")}),e)))}};class t{createTabBar(e){let t=new me({document:e});return t.addClass("lm-DockPanel-tabBar"),t}createHandle(){let e=document.createElement("div");return e.className="lm-DockPanel-handle",e}}e.Renderer=t,e.defaultRenderer=new t}(De||(De={})),function(e){e.GOLDEN_RATIO=.618,e.DEFAULT_EDGES={top:12,right:40,bottom:40,left:40},e.LayoutModified=new C("layout-modified"),e.isGeneratedTabBarProperty=new E({name:"isGeneratedTabBar",create:()=>!1}),e.createSingleDocumentConfig=function(e){if(e.isEmpty)return{main:null};let t=Array.from(e.widgets()),n=e.selectedWidgets().next().value,i=n?t.indexOf(n):-1;return{main:{type:"tab-area",widgets:t,currentIndex:i}}},e.findDropTarget=function(e,t,n,i){if(!u.hitTest(e.node,t,n))return{zone:"invalid",target:null};let r=e.layout;if(r.isEmpty)return{zone:"root-all",target:null};if("multiple-document"===e.mode){let r=e.node.getBoundingClientRect(),s=t-r.left+1,o=n-r.top+1,a=r.right-t,l=r.bottom-n;switch(Math.min(o,a,l,s)){case o:if(oh&&l>h&&a>p&&d>p)return{zone:"widget-all",target:s};switch(o/=h,a/=p,l/=h,d/=p,Math.min(o,a,l,d)){case o:c="widget-left";break;case a:c="widget-top";break;case l:c="widget-right";break;case d:c="widget-bottom";break;default:throw"unreachable"}return{zone:c,target:s}},e.getDropRef=function(e){return 0===e.titles.length?null:e.currentTitle?e.currentTitle.owner:e.titles[e.titles.length-1].owner}}(_e||(_e={}));class Se{constructor(){this._counter=0,this._widgets=[],this._activeWidget=null,this._currentWidget=null,this._numbers=new Map,this._nodes=new Map,this._activeChanged=new x(this),this._currentChanged=new x(this)}dispose(){if(!(this._counter<0)){this._counter=-1,x.clearData(this);for(const e of this._widgets)e.node.removeEventListener("focus",this,!0),e.node.removeEventListener("blur",this,!0);this._activeWidget=null,this._currentWidget=null,this._nodes.clear(),this._numbers.clear(),this._widgets.length=0}}get currentChanged(){return this._currentChanged}get activeChanged(){return this._activeChanged}get isDisposed(){return this._counter<0}get currentWidget(){return this._currentWidget}get activeWidget(){return this._activeWidget}get widgets(){return this._widgets}focusNumber(e){let t=this._numbers.get(e);return void 0===t?-1:t}has(e){return this._numbers.has(e)}add(e){if(this._numbers.has(e))return;let t=e.node.contains(document.activeElement),n=t?this._counter++:-1;this._widgets.push(e),this._numbers.set(e,n),this._nodes.set(e.node,e),e.node.addEventListener("focus",this,!0),e.node.addEventListener("blur",this,!0),e.disposed.connect(this._onWidgetDisposed,this),t&&this._setWidgets(e,e)}remove(e){if(!this._numbers.has(e))return;if(e.disposed.disconnect(this._onWidgetDisposed,this),e.node.removeEventListener("focus",this,!0),e.node.removeEventListener("blur",this,!0),i.removeFirstOf(this._widgets,e),this._nodes.delete(e.node),this._numbers.delete(e),this._currentWidget!==e)return;let t=function(e,t){let n;for(const i of e)void 0!==n?t(i,n)>0&&(n=i):n=i;return n}(this._widgets.filter((e=>-1!==this._numbers.get(e))),((e,t)=>this._numbers.get(e)-this._numbers.get(t)))||null;this._setWidgets(t,null)}handleEvent(e){switch(e.type){case"focus":this._evtFocus(e);break;case"blur":this._evtBlur(e)}}_setWidgets(e,t){let n=this._currentWidget;this._currentWidget=e;let i=this._activeWidget;this._activeWidget=t,n!==e&&this._currentChanged.emit({oldValue:n,newValue:e}),i!==t&&this._activeChanged.emit({oldValue:i,newValue:t})}_evtFocus(e){let t=this._nodes.get(e.currentTarget);t!==this._currentWidget&&this._numbers.set(t,this._counter++),this._setWidgets(t,t)}_evtBlur(e){let t=this._nodes.get(e.currentTarget),n=e.relatedTarget;n&&(t.node.contains(n)||a(this._widgets,(e=>e.node.contains(n))))||this._setWidgets(this._currentWidget,null)}_onWidgetDisposed(e){this.remove(e)}}class Te extends q{constructor(e={}){super(e),this._dirty=!1,this._rowSpacing=4,this._columnSpacing=4,this._items=[],this._rowStarts=[],this._columnStarts=[],this._rowSizers=[new W],this._columnSizers=[new W],this._box=null,void 0!==e.rowCount&&Ae.reallocSizers(this._rowSizers,e.rowCount),void 0!==e.columnCount&&Ae.reallocSizers(this._columnSizers,e.columnCount),void 0!==e.rowSpacing&&(this._rowSpacing=Ae.clampValue(e.rowSpacing)),void 0!==e.columnSpacing&&(this._columnSpacing=Ae.clampValue(e.columnSpacing))}dispose(){for(const e of this._items){let t=e.widget;e.dispose(),t.dispose()}this._box=null,this._items.length=0,this._rowStarts.length=0,this._rowSizers.length=0,this._columnStarts.length=0,this._columnSizers.length=0,super.dispose()}get rowCount(){return this._rowSizers.length}set rowCount(e){e!==this.rowCount&&(Ae.reallocSizers(this._rowSizers,e),this.parent&&this.parent.fit())}get columnCount(){return this._columnSizers.length}set columnCount(e){e!==this.columnCount&&(Ae.reallocSizers(this._columnSizers,e),this.parent&&this.parent.fit())}get rowSpacing(){return this._rowSpacing}set rowSpacing(e){e=Ae.clampValue(e),this._rowSpacing!==e&&(this._rowSpacing=e,this.parent&&this.parent.fit())}get columnSpacing(){return this._columnSpacing}set columnSpacing(e){e=Ae.clampValue(e),this._columnSpacing!==e&&(this._columnSpacing=e,this.parent&&this.parent.fit())}rowStretch(e){let t=this._rowSizers[e];return t?t.stretch:-1}setRowStretch(e,t){let n=this._rowSizers[e];n&&(t=Ae.clampValue(t),n.stretch!==t&&(n.stretch=t,this.parent&&this.parent.update()))}columnStretch(e){let t=this._columnSizers[e];return t?t.stretch:-1}setColumnStretch(e,t){let n=this._columnSizers[e];n&&(t=Ae.clampValue(t),n.stretch!==t&&(n.stretch=t,this.parent&&this.parent.update()))}*[Symbol.iterator](){for(const e of this._items)yield e.widget}addWidget(e){-1===i.findFirstIndex(this._items,(t=>t.widget===e))&&(this._items.push(new G(e)),this.parent&&this.attachWidget(e))}removeWidget(e){let t=i.findFirstIndex(this._items,(t=>t.widget===e));if(-1===t)return;let n=i.removeAt(this._items,t);this.parent&&this.detachWidget(e),n.dispose()}init(){super.init();for(const e of this)this.attachWidget(e)}attachWidget(e){this.parent.isAttached&&g.sendMessage(e,V.Msg.BeforeAttach),this.parent.node.appendChild(e.node),this.parent.isAttached&&g.sendMessage(e,V.Msg.AfterAttach),this.parent.fit()}detachWidget(e){this.parent.isAttached&&g.sendMessage(e,V.Msg.BeforeDetach),this.parent.node.removeChild(e.node),this.parent.isAttached&&g.sendMessage(e,V.Msg.AfterDetach),this.parent.fit()}onBeforeShow(e){super.onBeforeShow(e),this.parent.update()}onBeforeAttach(e){super.onBeforeAttach(e),this.parent.fit()}onChildShown(e){this.parent.fit()}onChildHidden(e){this.parent.fit()}onResize(e){this.parent.isVisible&&this._update(e.width,e.height)}onUpdateRequest(e){this.parent.isVisible&&this._update(-1,-1)}onFitRequest(e){this.parent.isAttached&&this._fit()}_fit(){for(let e=0,t=this.rowCount;e!e.isHidden));for(let t=0,n=e.length;t({row:0,column:0,rowSpan:1,columnSpan:1}),changed:function(e){e.parent&&e.parent.layout instanceof Te&&e.parent.fit()}}),e.normalizeConfig=function(e){return{row:Math.max(0,Math.floor(e.row||0)),column:Math.max(0,Math.floor(e.column||0)),rowSpan:Math.max(1,Math.floor(e.rowSpan||0)),columnSpan:Math.max(1,Math.floor(e.columnSpan||0))}},e.clampValue=function(e){return Math.max(0,Math.floor(e))},e.rowSpanCmp=function(t,n){let i=e.cellConfigProperty.get(t.widget),r=e.cellConfigProperty.get(n.widget);return i.rowSpan-r.rowSpan},e.columnSpanCmp=function(t,n){let i=e.cellConfigProperty.get(t.widget),r=e.cellConfigProperty.get(n.widget);return i.columnSpan-r.columnSpan},e.reallocSizers=function(e,t){for(t=Math.max(1,Math.floor(t));e.lengtht&&(e.length=t)},e.distributeMin=function(e,t,n,i){if(n=i)return;let s=(i-r)/(n-t+1);for(let i=t;i<=n;++i)e[i].minSize+=s}}(Ae||(Ae={}));class Me extends V{constructor(e={}){super({node:ye.createNode()}),this._activeIndex=-1,this._tabFocusIndex=0,this._menus=[],this._childMenu=null,this._overflowMenu=null,this._menuItemSizes=[],this._overflowIndex=-1,this.addClass("lm-MenuBar"),this.setFlag(V.Flag.DisallowLayout),this.renderer=e.renderer||Me.defaultRenderer,this._forceItemsPosition=e.forceItemsPosition||{forceX:!0,forceY:!0},this._overflowMenuOptions=e.overflowMenuOptions||{isVisible:!0}}dispose(){this._closeChildMenu(),this._menus.length=0,super.dispose()}get childMenu(){return this._childMenu}get overflowIndex(){return this._overflowIndex}get overflowMenu(){return this._overflowMenu}get contentNode(){return this.node.getElementsByClassName("lm-MenuBar-content")[0]}get activeMenu(){return this._menus[this._activeIndex]||null}set activeMenu(e){this.activeIndex=e?this._menus.indexOf(e):-1}get activeIndex(){return this._activeIndex}set activeIndex(e){(e<0||e>=this._menus.length)&&(e=-1),e>-1&&0===this._menus[e].items.length&&(e=-1),this._activeIndex!==e&&(this._activeIndex=e,this.update())}get menus(){return this._menus}openActiveMenu(){-1!==this._activeIndex&&(this._openChildMenu(),this._childMenu&&(this._childMenu.activeIndex=-1,this._childMenu.activateNextItem()))}addMenu(e,t=!0){this.insertMenu(this._menus.length,e,t)}insertMenu(e,t,n=!0){this._closeChildMenu();let r=this._menus.indexOf(t),s=Math.max(0,Math.min(e,this._menus.length));if(-1===r)return i.insert(this._menus,s,t),t.addClass("lm-MenuBar-menu"),t.aboutToClose.connect(this._onMenuAboutToClose,this),t.menuRequested.connect(this._onMenuMenuRequested,this),t.title.changed.connect(this._onTitleChanged,this),void(n&&this.update());s===this._menus.length&&s--,r!==s&&(i.move(this._menus,r,s),n&&this.update())}removeMenu(e,t=!0){this.removeMenuAt(this._menus.indexOf(e),t)}removeMenuAt(e,t=!0){this._closeChildMenu();let n=i.removeAt(this._menus,e);n&&(n.aboutToClose.disconnect(this._onMenuAboutToClose,this),n.menuRequested.disconnect(this._onMenuMenuRequested,this),n.title.changed.disconnect(this._onTitleChanged,this),n.removeClass("lm-MenuBar-menu"),t&&this.update())}clearMenus(){if(0!==this._menus.length){this._closeChildMenu();for(let e of this._menus)e.aboutToClose.disconnect(this._onMenuAboutToClose,this),e.menuRequested.disconnect(this._onMenuMenuRequested,this),e.title.changed.disconnect(this._onTitleChanged,this),e.removeClass("lm-MenuBar-menu");this._menus.length=0,this.update()}}handleEvent(e){switch(e.type){case"keydown":this._evtKeyDown(e);break;case"mousedown":this._evtMouseDown(e);break;case"mousemove":this._evtMouseMove(e);break;case"focusout":this._evtFocusOut(e);break;case"contextmenu":e.preventDefault(),e.stopPropagation()}}onBeforeAttach(e){this.node.addEventListener("keydown",this),this.node.addEventListener("mousedown",this),this.node.addEventListener("mousemove",this),this.node.addEventListener("focusout",this),this.node.addEventListener("contextmenu",this)}onAfterDetach(e){this.node.removeEventListener("keydown",this),this.node.removeEventListener("mousedown",this),this.node.removeEventListener("mousemove",this),this.node.removeEventListener("focusout",this),this.node.removeEventListener("contextmenu",this),this._closeChildMenu()}onActivateRequest(e){this.isAttached&&this._focusItemAt(0)}onResize(e){this.update(),super.onResize(e)}onUpdateRequest(e){var t;let n=this._menus,i=this.renderer,r=this._activeIndex,s=this._tabFocusIndex>=0&&this._tabFocusIndex-1?this._overflowIndex:n.length,a=0,l=!1;o=null!==this._overflowMenu?o-1:o;let u=new Array(o);for(let e=0;e{this._tabFocusIndex=e,this.activeIndex=e}}),a+=this._menuItemSizes[e],n[e].title.label===this._overflowMenuOptions.title&&(l=!0,o--);if(this._overflowMenuOptions.isVisible)if(this._overflowIndex>-1&&!l){if(null===this._overflowMenu){const e=null!==(t=this._overflowMenuOptions.title)&&void 0!==t?t:"...";this._overflowMenu=new ge({commands:new M.CommandRegistry}),this._overflowMenu.title.label=e,this._overflowMenu.title.mnemonic=0,this.addMenu(this._overflowMenu,!1)}for(let e=n.length-2;e>=o;e--){const t=this.menus[e];t.title.mnemonic=0,this._overflowMenu.insertItem(0,{type:"submenu",submenu:t}),this.removeMenu(t,!1)}u[o]=i.renderItem({title:this._overflowMenu.title,active:o===r&&0!==n[o].items.length,tabbable:o===s,disabled:0===n[o].items.length,onfocus:()=>{this._tabFocusIndex=o,this.activeIndex=o}}),o++}else if(null!==this._overflowMenu){let e=this._overflowMenu.items,t=this.node.offsetWidth,r=this._overflowMenu.items.length;for(let l=0;lthis._menuItemSizes[r]){let t=e[0].submenu;this._overflowMenu.removeItemAt(0),this.insertMenu(o,t,!1),u[o]=i.renderItem({title:t.title,active:!1,tabbable:o===s,disabled:0===n[o].items.length,onfocus:()=>{this._tabFocusIndex=o,this.activeIndex=o}}),o++}}0===this._overflowMenu.items.length&&(this.removeMenu(this._overflowMenu,!1),u.pop(),this._overflowMenu=null,this._overflowIndex=-1)}S.render(u,this.contentNode),this._updateOverflowIndex()}_updateOverflowIndex(){if(!this._overflowMenuOptions.isVisible)return;const e=this.contentNode.childNodes;let t=this.node.offsetWidth,n=0,i=-1,r=e.length;if(0==this._menuItemSizes.length)for(let s=0;st&&-1===i&&(i=s)}else for(let e=0;et){i=e;break}this._overflowIndex=i}_evtKeyDown(e){let t=e.keyCode;if(9===t)return void(this.activeIndex=-1);if(e.preventDefault(),e.stopPropagation(),13===t||32===t||38===t||40===t){if(this.activeIndex=this._tabFocusIndex,this.activeIndex!==this._tabFocusIndex)return;return void this.openActiveMenu()}if(27===t)return this._closeChildMenu(),void this._focusItemAt(this.activeIndex);if(37===t||39===t){let e=37===t?-1:1,n=this._tabFocusIndex+e,i=this._menus.length;for(let t=0;tu.hitTest(t,e.clientX,e.clientY)));if(-1!==t){if(0===e.button)if(this._childMenu)this._closeChildMenu(),this.activeIndex=t;else{e.preventDefault();const n=this._positionForMenu(t);ge.saveWindowData(),this.activeIndex=t,this._openChildMenu(n)}}else this._closeChildMenu()}_evtMouseMove(e){let t=i.findFirstIndex(this.contentNode.children,(t=>u.hitTest(t,e.clientX,e.clientY)));if(t===this._activeIndex)return;if(-1===t&&this._childMenu)return;const n=t>=0&&this._childMenu?this._positionForMenu(t):null;ge.saveWindowData(),this.activeIndex=t,n&&this._openChildMenu(n)}_positionForMenu(e){let t=this.contentNode.children[e],{left:n,bottom:i}=t.getBoundingClientRect();return{top:i,left:n}}_evtFocusOut(e){this._childMenu||this.node.contains(e.relatedTarget)||(this.activeIndex=-1)}_focusItemAt(e){const t=this.contentNode.childNodes[e];t&&t.focus()}_openChildMenu(e={}){let t=this.activeMenu;if(!t)return void this._closeChildMenu();let n=this._childMenu;if(n===t)return;this._childMenu=t,n?n.close():document.addEventListener("mousedown",this,!0),this._tabFocusIndex=this.activeIndex,g.sendMessage(this,V.Msg.UpdateRequest);let{left:i,top:r}=e;void 0!==i&&void 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h=0;h<4;h++){for(;u&&re(t.line.text.charAt(s.coverStart+u));)--u;for(;s.coverStart+d1}(e))return t;var n=screen.logicalXDPI/screen.deviceXDPI,i=screen.logicalYDPI/screen.deviceYDPI;return{left:t.left*n,right:t.right*n,top:t.top*i,bottom:t.bottom*i}}(e.display.measure,r))}else{var p;u>0&&(c=i="right"),r=e.options.lineWrapping&&(p=l.getClientRects()).length>1?p["right"==i?p.length-1:0]:l.getBoundingClientRect()}if(o&&a<9&&!u&&(!r||!r.left&&!r.right)){var g=l.parentNode.getClientRects()[0];r=g?{left:g.left,right:g.left+si(e.display),top:g.top,bottom:g.bottom}:Pn}for(var f=r.top-t.rect.top,m=r.bottom-t.rect.top,v=(f+m)/2,b=t.view.measure.heights,_=0;_t)&&(r=(s=l-a)-1,t>=l&&(o="right")),null!=r){if(i=e[u+2],a==l&&n==(i.insertLeft?"left":"right")&&(o=n),"left"==n&&0==r)for(;u&&e[u-2]==e[u-3]&&e[u-1].insertLeft;)i=e[2+(u-=3)],o="left";if("right"==n&&r==l-a)for(;u=0&&(n=e[r]).left==n.right;r--);return n}function Fn(e){if(e.measure&&(e.measure.cache={},e.measure.heights=null,e.rest))for(var t=0;t=i.text.length?(l=i.text.length,u="before"):l<=0&&(l=0,u="after"),!a)return o("before"==u?l-1:l,"before"==u);function d(e,t,n){return o(n?e-1:e,1==a[t].level!=n)}var c=le(a,l,u),h=ae,p=d(l,c,"before"==u);return null!=h&&(p.other=d(l,h,"before"!=u)),p}function Yn(e,t){var n=0;t=lt(e.doc,t),e.options.lineWrapping||(n=si(e.display)*t.ch);var i=Ge(e.doc,t.line),r=Ht(i)+En(e.display);return{left:n,right:n,top:r,bottom:r+i.height}}function Jn(e,t,n,i,r){var s=tt(e,t,n);return s.xRel=r,i&&(s.outside=i),s}function Xn(e,t,n){var i=e.doc;if((n+=e.display.viewOffset)<0)return Jn(i.first,0,null,-1,-1);var r=Ze(i,n),s=i.first+i.size-1;if(r>s)return Jn(i.first+i.size-1,Ge(i,s).text.length,null,1,1);t<0&&(t=0);for(var o=Ge(i,r);;){var a=ti(e,o,r,t,n),l=Lt(o,a.ch+(a.xRel>0||a.outside>0?1:0));if(!l)return a;var u=l.find(1);if(u.line==r)return u;o=Ge(i,r=u.line)}}function Zn(e,t,n,i){i-=Hn(t);var r=t.text.length,s=oe((function(t){return In(e,n,t-1).bottom<=i}),r,0);return{begin:s,end:r=oe((function(t){return In(e,n,t).top>i}),s,r)}}function Qn(e,t,n,i){return n||(n=On(e,t)),Zn(e,t,n,Vn(e,t,In(e,n,i),"line").top)}function ei(e,t,n,i){return!(e.bottom<=n)&&(e.top>n||(i?e.left:e.right)>t)}function ti(e,t,n,i,r){r-=Ht(t);var s=On(e,t),o=Hn(t),a=0,l=t.text.length,u=!0,d=de(t,e.doc.direction);if(d){var c=(e.options.lineWrapping?ii:ni)(e,t,n,s,d,i,r);a=(u=1!=c.level)?c.from:c.to-1,l=u?c.to:c.from-1}var h,p,g=null,f=null,m=oe((function(t){var n=In(e,s,t);return n.top+=o,n.bottom+=o,!!ei(n,i,r,!1)&&(n.top<=r&&n.left<=i&&(g=t,f=n),!0)}),a,l),v=!1;if(f){var b=i-f.left=A.bottom?1:0}return Jn(n,m=se(t.text,m,1),p,v,i-h)}function ni(e,t,n,i,r,s,o){var a=oe((function(a){var l=r[a],u=1!=l.level;return ei(Kn(e,tt(n,u?l.to:l.from,u?"before":"after"),"line",t,i),s,o,!0)}),0,r.length-1),l=r[a];if(a>0){var u=1!=l.level,d=Kn(e,tt(n,u?l.from:l.to,u?"after":"before"),"line",t,i);ei(d,s,o,!0)&&d.top>o&&(l=r[a-1])}return l}function ii(e,t,n,i,r,s,o){var a=Zn(e,t,i,o),l=a.begin,u=a.end;/\s/.test(t.text.charAt(u-1))&&u--;for(var d=null,c=null,h=0;h=u||p.to<=l)){var g=In(e,i,1!=p.level?Math.min(u,p.to)-1:Math.max(l,p.from)).right,f=gf)&&(d=p,c=f)}}return d||(d=r[r.length-1]),d.fromu&&(d={from:d.from,to:u,level:d.level}),d}function ri(e){if(null!=e.cachedTextHeight)return e.cachedTextHeight;if(null==Rn){Rn=M("pre",null,"CodeMirror-line-like");for(var t=0;t<49;++t)Rn.appendChild(document.createTextNode("x")),Rn.appendChild(M("br"));Rn.appendChild(document.createTextNode("x"))}T(e.measure,Rn);var n=Rn.offsetHeight/50;return n>3&&(e.cachedTextHeight=n),S(e.measure),n||1}function si(e){if(null!=e.cachedCharWidth)return e.cachedCharWidth;var t=M("span","xxxxxxxxxx"),n=M("pre",[t],"CodeMirror-line-like");T(e.measure,n);var i=t.getBoundingClientRect(),r=(i.right-i.left)/10;return r>2&&(e.cachedCharWidth=r),r||10}function oi(e){for(var t=e.display,n={},i={},r=t.gutters.clientLeft,s=t.gutters.firstChild,o=0;s;s=s.nextSibling,++o){var a=e.display.gutterSpecs[o].className;n[a]=s.offsetLeft+s.clientLeft+r,i[a]=s.clientWidth}return{fixedPos:ai(t),gutterTotalWidth:t.gutters.offsetWidth,gutterLeft:n,gutterWidth:i,wrapperWidth:t.wrapper.clientWidth}}function ai(e){return e.scroller.getBoundingClientRect().left-e.sizer.getBoundingClientRect().left}function li(e){var t=ri(e.display),n=e.options.lineWrapping,i=n&&Math.max(5,e.display.scroller.clientWidth/si(e.display)-3);return function(r){if($t(e.doc,r))return 0;var s=0;if(r.widgets)for(var o=0;o0&&(l=Ge(e.doc,u.line).text).length==u.ch){var d=N(l,l.length,e.options.tabSize)-l.length;u=tt(u.line,Math.max(0,Math.round((s-Dn(e.display).left)/si(e.display))-d))}return u}function ci(e,t){if(t>=e.display.viewTo)return null;if((t-=e.display.viewFrom)<0)return null;for(var n=e.display.view,i=0;it)&&(r.updateLineNumbers=t),e.curOp.viewChanged=!0,t>=r.viewTo)Ct&&zt(e.doc,t)r.viewFrom?gi(e):(r.viewFrom+=i,r.viewTo+=i);else if(t<=r.viewFrom&&n>=r.viewTo)gi(e);else if(t<=r.viewFrom){var s=fi(e,n,n+i,1);s?(r.view=r.view.slice(s.index),r.viewFrom=s.lineN,r.viewTo+=i):gi(e)}else if(n>=r.viewTo){var o=fi(e,t,t,-1);o?(r.view=r.view.slice(0,o.index),r.viewTo=o.lineN):gi(e)}else{var a=fi(e,t,t,-1),l=fi(e,n,n+i,1);a&&l?(r.view=r.view.slice(0,a.index).concat(on(e,a.lineN,l.lineN)).concat(r.view.slice(l.index)),r.viewTo+=i):gi(e)}var u=r.externalMeasured;u&&(n=r.lineN&&t=i.viewTo)){var s=i.view[ci(e,t)];if(null!=s.node){var o=s.changes||(s.changes=[]);-1==z(o,n)&&o.push(n)}}}function gi(e){e.display.viewFrom=e.display.viewTo=e.doc.first,e.display.view=[],e.display.viewOffset=0}function fi(e,t,n,i){var r,s=ci(e,t),o=e.display.view;if(!Ct||n==e.doc.first+e.doc.size)return{index:s,lineN:n};for(var a=e.display.viewFrom,l=0;l0){if(s==o.length-1)return null;r=a+o[s].size-t,s++}else r=a-t;t+=r,n+=r}for(;zt(e.doc,n)!=n;){if(s==(i<0?0:o.length-1))return null;n+=i*o[s-(i<0?1:0)].size,s+=i}return{index:s,lineN:n}}function mi(e){for(var t=e.display.view,n=0,i=0;i=e.display.viewTo||a.to().linet||t==n&&o.to==t)&&(i(Math.max(o.from,t),Math.min(o.to,n),1==o.level?"rtl":"ltr",s),r=!0)}r||i(t,n,"ltr")}(f,n||0,null==i?h:i,(function(e,t,r,c){var m="ltr"==r,v=p(e,m?"left":"right"),b=p(t-1,m?"right":"left"),_=null==n&&0==e,A=null==i&&t==h,y=0==c,w=!f||c==f.length-1;if(b.top-v.top<=3){var C=(u?A:_)&&w,E=(u?_:A)&&y?a:(m?v:b).left,x=C?l:(m?b:v).right;d(E,v.top,x-E,v.bottom)}else{var D,S,T,M;m?(D=u&&_&&y?a:v.left,S=u?l:g(e,r,"before"),T=u?a:g(t,r,"after"),M=u&&A&&w?l:b.right):(D=u?g(e,r,"before"):a,S=!u&&_&&y?l:v.right,T=!u&&A&&w?a:b.left,M=u?g(t,r,"after"):l),d(D,v.top,S-D,v.bottom),v.bottom0?t.blinker=setInterval((function(){e.hasFocus()||Di(e),t.cursorDiv.style.visibility=(n=!n)?"":"hidden"}),e.options.cursorBlinkRate):e.options.cursorBlinkRate<0&&(t.cursorDiv.style.visibility="hidden")}}function Ci(e){e.hasFocus()||(e.display.input.focus(),e.state.focused||xi(e))}function Ei(e){e.state.delayingBlurEvent=!0,setTimeout((function(){e.state.delayingBlurEvent&&(e.state.delayingBlurEvent=!1,e.state.focused&&Di(e))}),100)}function xi(e,t){e.state.delayingBlurEvent&&!e.state.draggingText&&(e.state.delayingBlurEvent=!1),"nocursor"!=e.options.readOnly&&(e.state.focused||(fe(e,"focus",e,t),e.state.focused=!0,O(e.display.wrapper,"CodeMirror-focused"),e.curOp||e.display.selForContextMenu==e.doc.sel||(e.display.input.reset(),l&&setTimeout((function(){return e.display.input.reset(!0)}),20)),e.display.input.receivedFocus()),wi(e))}function Di(e,t){e.state.delayingBlurEvent||(e.state.focused&&(fe(e,"blur",e,t),e.state.focused=!1,D(e.display.wrapper,"CodeMirror-focused")),clearInterval(e.display.blinker),setTimeout((function(){e.state.focused||(e.display.shift=!1)}),150))}function Si(e){for(var t=e.display,n=t.lineDiv.offsetTop,i=0;i.005||h<-.005)&&(Je(r.line,l),Ti(r.line),r.rest))for(var p=0;pe.display.sizerWidth){var g=Math.ceil(u/si(e.display));g>e.display.maxLineLength&&(e.display.maxLineLength=g,e.display.maxLine=r.line,e.display.maxLineChanged=!0)}}}}function Ti(e){if(e.widgets)for(var t=0;t=o&&(s=Ze(t,Ht(Ge(t,l))-e.wrapper.clientHeight),o=l)}return{from:s,to:Math.max(o,s+1)}}function ki(e,t){var n=e.display,i=ri(e.display);t.top<0&&(t.top=0);var r=e.curOp&&null!=e.curOp.scrollTop?e.curOp.scrollTop:n.scroller.scrollTop,s=Mn(e),o={};t.bottom-t.top>s&&(t.bottom=t.top+s);var a=e.doc.height+xn(n),l=t.topa-i;if(t.topr+s){var d=Math.min(t.top,(u?a:t.bottom)-s);d!=r&&(o.scrollTop=d)}var c=e.options.fixedGutter?0:n.gutters.offsetWidth,h=e.curOp&&null!=e.curOp.scrollLeft?e.curOp.scrollLeft:n.scroller.scrollLeft-c,p=Tn(e)-n.gutters.offsetWidth,g=t.right-t.left>p;return g&&(t.right=t.left+p),t.left<10?o.scrollLeft=0:t.leftp+h-3&&(o.scrollLeft=t.right+(g?0:10)-p),o}function ji(e,t){null!=t&&(Ii(e),e.curOp.scrollTop=(null==e.curOp.scrollTop?e.doc.scrollTop:e.curOp.scrollTop)+t)}function Bi(e){Ii(e);var t=e.getCursor();e.curOp.scrollToPos={from:t,to:t,margin:e.options.cursorScrollMargin}}function Oi(e,t,n){null==t&&null==n||Ii(e),null!=t&&(e.curOp.scrollLeft=t),null!=n&&(e.curOp.scrollTop=n)}function Ii(e){var t=e.curOp.scrollToPos;t&&(e.curOp.scrollToPos=null,Ri(e,Yn(e,t.from),Yn(e,t.to),t.margin))}function Ri(e,t,n,i){var r=ki(e,{left:Math.min(t.left,n.left),top:Math.min(t.top,n.top)-i,right:Math.max(t.right,n.right),bottom:Math.max(t.bottom,n.bottom)+i});Oi(e,r.scrollLeft,r.scrollTop)}function Pi(e,t){Math.abs(e.doc.scrollTop-t)<2||(n||ur(e,{top:t}),Li(e,t,!0),n&&ur(e),rr(e,100))}function Li(e,t,n){t=Math.max(0,Math.min(e.display.scroller.scrollHeight-e.display.scroller.clientHeight,t)),(e.display.scroller.scrollTop!=t||n)&&(e.doc.scrollTop=t,e.display.scrollbars.setScrollTop(t),e.display.scroller.scrollTop!=t&&(e.display.scroller.scrollTop=t))}function Ni(e,t,n,i){t=Math.max(0,Math.min(t,e.display.scroller.scrollWidth-e.display.scroller.clientWidth)),(n?t==e.doc.scrollLeft:Math.abs(e.doc.scrollLeft-t)<2)&&!i||(e.doc.scrollLeft=t,hr(e),e.display.scroller.scrollLeft!=t&&(e.display.scroller.scrollLeft=t),e.display.scrollbars.setScrollLeft(t))}function Fi(e){var t=e.display,n=t.gutters.offsetWidth,i=Math.round(e.doc.height+xn(e.display));return{clientHeight:t.scroller.clientHeight,viewHeight:t.wrapper.clientHeight,scrollWidth:t.scroller.scrollWidth,clientWidth:t.scroller.clientWidth,viewWidth:t.wrapper.clientWidth,barLeft:e.options.fixedGutter?n:0,docHeight:i,scrollHeight:i+Sn(e)+t.barHeight,nativeBarWidth:t.nativeBarWidth,gutterWidth:n}}var zi=function(e,t,n){this.cm=n;var i=this.vert=M("div",[M("div",null,null,"min-width: 1px")],"CodeMirror-vscrollbar"),r=this.horiz=M("div",[M("div",null,null,"height: 100%; min-height: 1px")],"CodeMirror-hscrollbar");i.tabIndex=r.tabIndex=-1,e(i),e(r),he(i,"scroll",(function(){i.clientHeight&&t(i.scrollTop,"vertical")})),he(r,"scroll",(function(){r.clientWidth&&t(r.scrollLeft,"horizontal")})),this.checkedZeroWidth=!1,o&&a<8&&(this.horiz.style.minHeight=this.vert.style.minWidth="18px")};zi.prototype.update=function(e){var t=e.scrollWidth>e.clientWidth+1,n=e.scrollHeight>e.clientHeight+1,i=e.nativeBarWidth;if(n){this.vert.style.display="block",this.vert.style.bottom=t?i+"px":"0";var r=e.viewHeight-(t?i:0);this.vert.firstChild.style.height=Math.max(0,e.scrollHeight-e.clientHeight+r)+"px"}else this.vert.style.display="",this.vert.firstChild.style.height="0";if(t){this.horiz.style.display="block",this.horiz.style.right=n?i+"px":"0",this.horiz.style.left=e.barLeft+"px";var s=e.viewWidth-e.barLeft-(n?i:0);this.horiz.firstChild.style.width=Math.max(0,e.scrollWidth-e.clientWidth+s)+"px"}else this.horiz.style.display="",this.horiz.firstChild.style.width="0";return!this.checkedZeroWidth&&e.clientHeight>0&&(0==i&&this.zeroWidthHack(),this.checkedZeroWidth=!0),{right:n?i:0,bottom:t?i:0}},zi.prototype.setScrollLeft=function(e){this.horiz.scrollLeft!=e&&(this.horiz.scrollLeft=e),this.disableHoriz&&this.enableZeroWidthBar(this.horiz,this.disableHoriz,"horiz")},zi.prototype.setScrollTop=function(e){this.vert.scrollTop!=e&&(this.vert.scrollTop=e),this.disableVert&&this.enableZeroWidthBar(this.vert,this.disableVert,"vert")},zi.prototype.zeroWidthHack=function(){var e=b&&!p?"12px":"18px";this.horiz.style.height=this.vert.style.width=e,this.horiz.style.pointerEvents=this.vert.style.pointerEvents="none",this.disableHoriz=new F,this.disableVert=new F},zi.prototype.enableZeroWidthBar=function(e,t,n){e.style.pointerEvents="auto",t.set(1e3,(function i(){var r=e.getBoundingClientRect();("vert"==n?document.elementFromPoint(r.right-1,(r.top+r.bottom)/2):document.elementFromPoint((r.right+r.left)/2,r.bottom-1))!=e?e.style.pointerEvents="none":t.set(1e3,i)}))},zi.prototype.clear=function(){var e=this.horiz.parentNode;e.removeChild(this.horiz),e.removeChild(this.vert)};var Ui=function(){};function $i(e,t){t||(t=Fi(e));var n=e.display.barWidth,i=e.display.barHeight;Wi(e,t);for(var r=0;r<4&&n!=e.display.barWidth||i!=e.display.barHeight;r++)n!=e.display.barWidth&&e.options.lineWrapping&&Si(e),Wi(e,Fi(e)),n=e.display.barWidth,i=e.display.barHeight}function Wi(e,t){var n=e.display,i=n.scrollbars.update(t);n.sizer.style.paddingRight=(n.barWidth=i.right)+"px",n.sizer.style.paddingBottom=(n.barHeight=i.bottom)+"px",n.heightForcer.style.borderBottom=i.bottom+"px solid 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t=e.cm,n=t.display;e.updatedDisplay&&Si(t),e.barMeasure=Fi(t),n.maxLineChanged&&!t.options.lineWrapping&&(e.adjustWidthTo=jn(t,n.maxLine,n.maxLine.text.length).left+3,t.display.sizerWidth=e.adjustWidthTo,e.barMeasure.scrollWidth=Math.max(n.scroller.clientWidth,n.sizer.offsetLeft+e.adjustWidthTo+Sn(t)+t.display.barWidth),e.maxScrollLeft=Math.max(0,n.sizer.offsetLeft+e.adjustWidthTo-Tn(t))),(e.updatedDisplay||e.selectionChanged)&&(e.preparedSelection=n.input.prepareSelection())}function Zi(e){var t=e.cm;null!=e.adjustWidthTo&&(t.display.sizer.style.minWidth=e.adjustWidthTo+"px",e.maxScrollLeft(window.innerHeight||document.documentElement.clientHeight)&&(r=!1),null!=r&&!g){var s=M("div","​",null,"position: absolute;\n top: "+(t.top-n.viewOffset-En(e.display))+"px;\n height: "+(t.bottom-t.top+Sn(e)+n.barHeight)+"px;\n left: "+t.left+"px; width: 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r=i.first+i.size,s=Math.max(t.visible.from-e.options.viewportMargin,i.first),o=Math.min(r,t.visible.to+e.options.viewportMargin);n.viewFromo&&n.viewTo-o<20&&(o=Math.min(r,n.viewTo)),Ct&&(s=zt(e.doc,s),o=Ut(e.doc,o));var a=s!=n.viewFrom||o!=n.viewTo||n.lastWrapHeight!=t.wrapperHeight||n.lastWrapWidth!=t.wrapperWidth;(function(e,t,n){var i=e.display;0==i.view.length||t>=i.viewTo||n<=i.viewFrom?(i.view=on(e,t,n),i.viewFrom=t):(i.viewFrom>t?i.view=on(e,t,i.viewFrom).concat(i.view):i.viewFromn&&(i.view=i.view.slice(0,ci(e,n)))),i.viewTo=n})(e,s,o),n.viewOffset=Ht(Ge(e.doc,n.viewFrom)),e.display.mover.style.top=n.viewOffset+"px";var u=mi(e);if(!a&&0==u&&!t.force&&n.renderedView==n.view&&(null==n.updateLineNumbers||n.updateLineNumbers>=n.viewTo))return!1;var d=function(e){if(e.hasFocus())return null;var t=B();if(!t||!j(e.display.lineDiv,t))return null;var n={activeElt:t};if(window.getSelection){var i=window.getSelection();i.anchorNode&&i.extend&&j(e.display.lineDiv,i.anchorNode)&&(n.anchorNode=i.anchorNode,n.anchorOffset=i.anchorOffset,n.focusNode=i.focusNode,n.focusOffset=i.focusOffset)}return n}(e);return u>4&&(n.lineDiv.style.display="none"),function(e,t,n){var i=e.display,r=e.options.lineNumbers,s=i.lineDiv,o=s.firstChild;function a(t){var n=t.nextSibling;return l&&b&&e.display.currentWheelTarget==t?t.style.display="none":t.parentNode.removeChild(t),n}for(var u=i.view,d=i.viewFrom,c=0;c-1&&(p=!1),cn(e,h,d,n)),p&&(S(h.lineNumber),h.lineNumber.appendChild(document.createTextNode(et(e.options,d)))),o=h.node.nextSibling}else{var g=bn(e,h,d,n);s.insertBefore(g,o)}d+=h.size}for(;o;)o=a(o)}(e,n.updateLineNumbers,t.dims),u>4&&(n.lineDiv.style.display=""),n.renderedView=n.view,function(e){if(e&&e.activeElt&&e.activeElt!=B()&&(e.activeElt.focus(),!/^(INPUT|TEXTAREA)$/.test(e.activeElt.nodeName)&&e.anchorNode&&j(document.body,e.anchorNode)&&j(document.body,e.focusNode))){var t=window.getSelection(),n=document.createRange();n.setEnd(e.anchorNode,e.anchorOffset),n.collapse(!1),t.removeAllRanges(),t.addRange(n),t.extend(e.focusNode,e.focusOffset)}}(d),S(n.cursorDiv),S(n.selectionDiv),n.gutters.style.height=n.sizer.style.minHeight=0,a&&(n.lastWrapHeight=t.wrapperHeight,n.lastWrapWidth=t.wrapperWidth,rr(e,400)),n.updateLineNumbers=null,!0}function lr(e,t){for(var n=t.viewport,i=!0;;i=!1){if(i&&e.options.lineWrapping&&t.oldDisplayWidth!=Tn(e))i&&(t.visible=Mi(e.display,e.doc,n));else if(n&&null!=n.top&&(n={top:Math.min(e.doc.height+xn(e.display)-Mn(e),n.top)}),t.visible=Mi(e.display,e.doc,n),t.visible.from>=e.display.viewFrom&&t.visible.to<=e.display.viewTo)break;if(!ar(e,t))break;Si(e);var r=Fi(e);vi(e),$i(e,r),cr(e,r),t.force=!1}t.signal(e,"update",e),e.display.viewFrom==e.display.reportedViewFrom&&e.display.viewTo==e.display.reportedViewTo||(t.signal(e,"viewportChange",e,e.display.viewFrom,e.display.viewTo),e.display.reportedViewFrom=e.display.viewFrom,e.display.reportedViewTo=e.display.viewTo)}function ur(e,t){var n=new or(e,t);if(ar(e,n)){Si(e),lr(e,n);var i=Fi(e);vi(e),$i(e,i),cr(e,i),n.finish()}}function dr(e){var t=e.gutters.offsetWidth;e.sizer.style.marginLeft=t+"px",un(e,"gutterChanged",e)}function cr(e,t){e.display.sizer.style.minHeight=t.docHeight+"px",e.display.heightForcer.style.top=t.docHeight+"px",e.display.gutters.style.height=t.docHeight+e.display.barHeight+Sn(e)+"px"}function hr(e){var t=e.display,n=t.view;if(t.alignWidgets||t.gutters.firstChild&&e.options.fixedGutter){for(var i=ai(t)-t.scroller.scrollLeft+e.doc.scrollLeft,r=t.gutters.offsetWidth,s=i+"px",o=0;oa.clientWidth,d=a.scrollHeight>a.clientHeight;if(r&&u||s&&d){if(s&&b&&l)e:for(var 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Date-e.history.lastSelTime<=(e.cm?e.cm.options.historyEventDelay:500)}(e,s,Y(r.done),t))?r.done[r.done.length-1]=t:Wr(t,r.done),r.lastSelTime=+new Date,r.lastSelOrigin=s,r.lastSelOp=n,i&&!1!==i.clearRedo&&zr(r.undone)}function Wr(e,t){var n=Y(t);n&&n.ranges&&n.equals(e)||t.push(e)}function Hr(e,t,n,i){var r=t["spans_"+e.id],s=0;e.iter(Math.max(e.first,n),Math.min(e.first+e.size,i),(function(n){n.markedSpans&&((r||(r=t["spans_"+e.id]={}))[s]=n.markedSpans),++s}))}function Vr(e){if(!e)return null;for(var t,n=0;n-1&&(Y(a)[c]=u[c],delete u[c])}}}return i}function Kr(e,t,n,i){if(i){var r=e.anchor;if(n){var s=nt(t,r)<0;s!=nt(n,r)<0?(r=t,t=n):s!=nt(t,n)<0&&(t=n)}return new Er(r,t)}return new Er(n||t,t)}function Yr(e,t,n,i,r){null==r&&(r=e.cm&&(e.cm.display.shift||e.extend)),es(e,new Cr([Kr(e.sel.primary(),t,n,r)],0),i)}function Jr(e,t,n){for(var 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r=i.length-1;r>=0;--r)cs(e,{from:i[r].from,to:i[r].to,text:r?[""]:t.text,origin:t.origin});else cs(e,t)}}function cs(e,t){if(1!=t.text.length||""!=t.text[0]||0!=nt(t.from,t.to)){var n=Mr(e,t);Ur(e,t,n,e.cm?e.cm.curOp.id:NaN),gs(e,t,n,St(e,t));var i=[];Rr(e,(function(e,n){n||-1!=z(i,e.history)||(bs(e.history,t),i.push(e.history)),gs(e,t,null,St(e,t))}))}}function hs(e,t,n){var i=e.cm&&e.cm.state.suppressEdits;if(!i||n){for(var r,s=e.history,o=e.sel,a="undo"==t?s.done:s.undone,l="undo"==t?s.undone:s.done,u=0;u=0;--p){var g=h(p);if(g)return g.v}}}}function ps(e,t){if(0!=t&&(e.first+=t,e.sel=new Cr(J(e.sel.ranges,(function(e){return new Er(tt(e.anchor.line+t,e.anchor.ch),tt(e.head.line+t,e.head.ch))})),e.sel.primIndex),e.cm)){hi(e.cm,e.first,e.first-t,t);for(var n=e.cm.display,i=n.viewFrom;ie.lastLine())){if(t.from.lines&&(t={from:t.from,to:tt(s,Ge(e,s).text.length),text:[t.text[0]],origin:t.origin}),t.removed=Ke(e,t.from,t.to),n||(n=Mr(e,t)),e.cm?function(e,t,n){var i=e.doc,r=e.display,s=t.from,o=t.to,a=!1,l=s.line;e.options.lineWrapping||(l=Xe(Ft(Ge(i,s.line))),i.iter(l,o.line+1,(function(e){if(e==r.maxLine)return a=!0,!0}))),i.sel.contains(t.from,t.to)>-1&&ve(e),Ir(i,t,n,li(e)),e.options.lineWrapping||(i.iter(l,s.line+t.text.length,(function(e){var t=Vt(e);t>r.maxLineLength&&(r.maxLine=e,r.maxLineLength=t,r.maxLineChanged=!0,a=!1)})),a&&(e.curOp.updateMaxLine=!0)),function(e,t){if(e.modeFrontier=Math.min(e.modeFrontier,t),!(e.highlightFrontiern;i--){var r=Ge(e,i).stateAfter;if(r&&(!(r instanceof dt)||i+r.lookAhead1||!(this.children[0]instanceof As))){var a=[];this.collapse(a),this.children=[new As(a)],this.children[0].parent=this}},collapse:function(e){for(var t=0;t50){for(var o=r.lines.length%25+25,a=o;a10);e.parent.maybeSpill()}},iterN:function(e,t,n){for(var i=0;i0||0==o&&!1!==s.clearWhenEmpty)return s;if(s.replacedWith&&(s.collapsed=!0,s.widgetNode=k("span",[s.replacedWith],"CodeMirror-widget"),i.handleMouseEvents||s.widgetNode.setAttribute("cm-ignore-events","true"),i.insertLeft&&(s.widgetNode.insertLeft=!0)),s.collapsed){if(Nt(e,t.line,t,n,s)||t.line!=n.line&&Nt(e,n.line,t,n,s))throw new Error("Inserting collapsed marker partially overlapping an existing one");Ct=!0}s.addToHistory&&Ur(e,{from:t,to:n,origin:"markText"},e.sel,NaN);var a,l=t.line,u=e.cm;if(e.iter(l,n.line+1,(function(i){u&&s.collapsed&&!u.options.lineWrapping&&Ft(i)==u.display.maxLine&&(a=!0),s.collapsed&&l!=t.line&&Je(i,0),function(e,t,n){var i=n&&window.WeakSet&&(n.markedSpans||(n.markedSpans=new WeakSet));i&&i.has(e.markedSpans)?e.markedSpans.push(t):(e.markedSpans=e.markedSpans?e.markedSpans.concat([t]):[t],i&&i.add(e.markedSpans)),t.marker.attachLine(e)}(i,new 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r,s;if(t.touches)r=t.touches[0].clientX,s=t.touches[0].clientY;else try{r=t.clientX,s=t.clientY}catch(e){return!1}if(r>=Math.floor(e.display.gutters.getBoundingClientRect().right))return!1;i&&Ae(t);var o=e.display,a=o.lineDiv.getBoundingClientRect();if(s>a.bottom||!be(e,n))return we(t);s-=a.top-o.viewOffset;for(var l=0;l=r)return fe(e,n,e,Ze(e.doc,s),e.display.gutterSpecs[l].className,t),we(t)}}function Ao(e,t){return _o(e,t,"gutterClick",!0)}function yo(e,t){Cn(e.display,t)||function(e,t){return!!be(e,"gutterContextMenu")&&_o(e,t,"gutterContextMenu",!1)}(e,t)||me(e,t,"contextmenu")||C||e.display.input.onContextMenu(t)}function wo(e){e.display.wrapper.className=e.display.wrapper.className.replace(/\s*cm-s-\S+/g,"")+e.options.theme.replace(/(^|\s)\s*/g," cm-s-"),Un(e)}mo.prototype.compare=function(e,t,n){return this.time+400>e&&0==nt(t,this.pos)&&n==this.button};var Co={toString:function(){return"CodeMirror.Init"}},Eo={},xo={};function Do(e,t,n){if(!t!=!(n&&n!=Co)){var i=e.display.dragFunctions,r=t?he:ge;r(e.display.scroller,"dragstart",i.start),r(e.display.scroller,"dragenter",i.enter),r(e.display.scroller,"dragover",i.over),r(e.display.scroller,"dragleave",i.leave),r(e.display.scroller,"drop",i.drop)}}function So(e){e.options.lineWrapping?(O(e.display.wrapper,"CodeMirror-wrap"),e.display.sizer.style.minWidth="",e.display.sizerWidth=null):(D(e.display.wrapper,"CodeMirror-wrap"),qt(e)),ui(e),hi(e),Un(e),setTimeout((function(){return $i(e)}),100)}function To(e,t){var n=this;if(!(this instanceof To))return new To(e,t);this.options=t=t?L(t):{},L(Eo,t,!1);var i=t.value;"string"==typeof i?i=new js(i,t.mode,null,t.lineSeparator,t.direction):t.mode&&(i.modeOption=t.mode),this.doc=i;var r=new To.inputStyles[t.inputStyle](this),s=this.display=new vr(e,i,r,t);for(var u in s.wrapper.CodeMirror=this,wo(this),t.lineWrapping&&(this.display.wrapper.className+=" 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n=e.clipboardData&&e.clipboardData.getData("Text");if(n)return e.preventDefault(),t.isReadOnly()||t.options.disableInput||er(t,(function(){return Oo(t,n,0,null,"paste")})),!0}function Ro(e,t){if(e.options.electricChars&&e.options.smartIndent)for(var n=e.doc.sel,i=n.ranges.length-1;i>=0;i--){var r=n.ranges[i];if(!(r.head.ch>100||i&&n.ranges[i-1].head.line==r.head.line)){var s=e.getModeAt(r.head),o=!1;if(s.electricChars){for(var a=0;a-1){o=ko(e,r.head.line,"smart");break}}else s.electricInput&&s.electricInput.test(Ge(e.doc,r.head.line).text.slice(0,r.head.ch))&&(o=ko(e,r.head.line,"smart"));o&&un(e,"electricInput",e,r.head.line)}}}function Po(e){for(var t=[],n=[],i=0;i0?0:-1));if(isNaN(d))o=null;else{var c=n>0?d>=55296&&d<56320:d>=56320&&d<57343;o=new tt(t.line,Math.max(0,Math.min(a.text.length,t.ch+n*(c?2:1))),-n)}}else o=r?function(e,t,n,i){var r=de(t,e.doc.direction);if(!r)return Qs(t,n,i);n.ch>=t.text.length?(n.ch=t.text.length,n.sticky="before"):n.ch<=0&&(n.ch=0,n.sticky="after");var s=le(r,n.ch,n.sticky),o=r[s];if("ltr"==e.doc.direction&&o.level%2==0&&(i>0?o.to>n.ch:o.from=o.from&&h>=d.begin)){var p=c?"before":"after";return new tt(n.line,h,p)}}var g=function(e,t,i){for(var s=function(e,t){return t?new tt(n.line,l(e,1),"before"):new tt(n.line,e,"after")};e>=0&&e0==(1!=o.level),u=a?i.begin:l(i.end,-1);if(o.from<=u&&u0?d.end:l(d.begin,-1);return null==m||i>0&&m==t.text.length||!(f=g(i>0?0:r.length-1,i,u(m)))?null:f}(e.cm,a,t,n):Qs(a,t,n);if(null==o){if(s||((u=t.line+l)=e.first+e.size||(t=new tt(u,t.ch,t.sticky),!(a=Ge(e,u)))))return!1;t=eo(r,e.cm,a,t.line,l)}else t=o;return!0}if("char"==i||"codepoint"==i)u();else if("column"==i)u(!0);else if("word"==i||"group"==i)for(var d=null,c="group"==i,h=e.cm&&e.cm.getHelper(t,"wordChars"),p=!0;!(n<0)||u(!p);p=!1){var g=a.text.charAt(t.ch)||"\n",f=te(g,h)?"w":c&&"\n"==g?"n":!c||/\s/.test(g)?null:"p";if(!c||p||f||(f="s"),d&&d!=f){n<0&&(n=1,u(),t.sticky="after");break}if(f&&(d=f),n>0&&!u(!p))break}var m=os(e,t,s,o,!0);return it(s,m)&&(m.hitSide=!0),m}function zo(e,t,n,i){var r,s,o=e.doc,a=t.left;if("page"==i){var l=Math.min(e.display.wrapper.clientHeight,window.innerHeight||document.documentElement.clientHeight),u=Math.max(l-.5*ri(e.display),3);r=(n>0?t.bottom:t.top)+n*u}else"line"==i&&(r=n>0?t.bottom+3:t.top-3);for(;(s=Xn(e,a,r)).outside;){if(n<0?r<=0:r>=o.height){s.hitSide=!0;break}r+=5*n}return s}var Uo=function(e){this.cm=e,this.lastAnchorNode=this.lastAnchorOffset=this.lastFocusNode=this.lastFocusOffset=null,this.polling=new F,this.composing=null,this.gracePeriod=!1,this.readDOMTimeout=null};function $o(e,t){var n=Bn(e,t.line);if(!n||n.hidden)return null;var i=Ge(e.doc,t.line),r=kn(n,i,t.line),s=de(i,e.doc.direction),o="left";s&&(o=le(s,t.ch)%2?"right":"left");var a=Ln(r.map,t.ch,o);return a.offset="right"==a.collapse?a.end:a.start,a}function Wo(e,t){return t&&(e.bad=!0),e}function Ho(e,t,n){var i;if(t==e.display.lineDiv){if(!(i=e.display.lineDiv.childNodes[n]))return Wo(e.clipPos(tt(e.display.viewTo-1)),!0);t=null,n=0}else for(i=t;;i=i.parentNode){if(!i||i==e.display.lineDiv)return null;if(i.parentNode&&i.parentNode==e.display.lineDiv)break}for(var r=0;r=t.display.viewTo||s.line=t.display.viewFrom&&$o(t,r)||{node:l[0].measure.map[2],offset:0},d=s.linei.firstLine()&&(o=tt(o.line-1,Ge(i.doc,o.line-1).length)),a.ch==Ge(i.doc,a.line).text.length&&a.liner.viewTo-1)return!1;o.line==r.viewFrom||0==(e=ci(i,o.line))?(t=Xe(r.view[0].line),n=r.view[0].node):(t=Xe(r.view[e].line),n=r.view[e-1].node.nextSibling);var l,u,d=ci(i,a.line);if(d==r.view.length-1?(l=r.viewTo-1,u=r.lineDiv.lastChild):(l=Xe(r.view[d+1].line)-1,u=r.view[d+1].node.previousSibling),!n)return!1;for(var c=i.doc.splitLines(function(e,t,n,i,r){var s="",o=!1,a=e.doc.lineSeparator(),l=!1;function 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0},Uo.prototype.ensurePolled=function(){this.forceCompositionEnd()},Uo.prototype.reset=function(){this.forceCompositionEnd()},Uo.prototype.forceCompositionEnd=function(){this.composing&&(clearTimeout(this.readDOMTimeout),this.composing=null,this.updateFromDOM(),this.div.blur(),this.div.focus())},Uo.prototype.readFromDOMSoon=function(){var e=this;null==this.readDOMTimeout&&(this.readDOMTimeout=setTimeout((function(){if(e.readDOMTimeout=null,e.composing){if(!e.composing.done)return;e.composing=null}e.updateFromDOM()}),80))},Uo.prototype.updateFromDOM=function(){var e=this;!this.cm.isReadOnly()&&this.pollContent()||er(this.cm,(function(){return hi(e.cm)}))},Uo.prototype.setUneditable=function(e){e.contentEditable="false"},Uo.prototype.onKeyPress=function(e){0==e.charCode||this.composing||(e.preventDefault(),this.cm.isReadOnly()||tr(this.cm,Oo)(this.cm,String.fromCharCode(null==e.charCode?e.keyCode:e.charCode),0))},Uo.prototype.readOnlyChanged=function(e){this.div.contentEditable=String("nocursor"!=e)},Uo.prototype.onContextMenu=function(){},Uo.prototype.resetPosition=function(){},Uo.prototype.needsContentAttribute=!0;var qo=function(e){this.cm=e,this.prevInput="",this.pollingFast=!1,this.polling=new F,this.hasSelection=!1,this.composing=null};qo.prototype.init=function(e){var t=this,n=this,i=this.cm;this.createField(e);var r=this.textarea;function s(e){if(!me(i,e)){if(i.somethingSelected())Bo({lineWise:!1,text:i.getSelections()});else{if(!i.options.lineWiseCopyCut)return;var t=Po(i);Bo({lineWise:!0,text:t.text}),"cut"==e.type?i.setSelections(t.ranges,null,W):(n.prevInput="",r.value=t.text.join("\n"),R(r))}"cut"==e.type&&(i.state.cutIncoming=+new Date)}}e.wrapper.insertBefore(this.wrapper,e.wrapper.firstChild),f&&(r.style.width="0px"),he(r,"input",(function(){o&&a>=9&&t.hasSelection&&(t.hasSelection=null),n.poll()})),he(r,"paste",(function(e){me(i,e)||Io(e,i)||(i.state.pasteIncoming=+new Date,n.fastPoll())})),he(r,"cut",s),he(r,"copy",s),he(e.scroller,"paste",(function(t){if(!Cn(e,t)&&!me(i,t)){if(!r.dispatchEvent)return i.state.pasteIncoming=+new Date,void n.focus();var s=new Event("paste");s.clipboardData=t.clipboardData,r.dispatchEvent(s)}})),he(e.lineSpace,"selectstart",(function(t){Cn(e,t)||Ae(t)})),he(r,"compositionstart",(function(){var e=i.getCursor("from");n.composing&&n.composing.range.clear(),n.composing={start:e,range:i.markText(e,i.getCursor("to"),{className:"CodeMirror-composing"})}})),he(r,"compositionend",(function(){n.composing&&(n.poll(),n.composing.range.clear(),n.composing=null)}))},qo.prototype.createField=function(e){this.wrapper=No(),this.textarea=this.wrapper.firstChild},qo.prototype.screenReaderLabelChanged=function(e){e?this.textarea.setAttribute("aria-label",e):this.textarea.removeAttribute("aria-label")},qo.prototype.prepareSelection=function(){var e=this.cm,t=e.display,n=e.doc,i=bi(e);if(e.options.moveInputWithCursor){var r=Kn(e,n.sel.primary().head,"div"),s=t.wrapper.getBoundingClientRect(),o=t.lineDiv.getBoundingClientRect();i.teTop=Math.max(0,Math.min(t.wrapper.clientHeight-10,r.top+o.top-s.top)),i.teLeft=Math.max(0,Math.min(t.wrapper.clientWidth-10,r.left+o.left-s.left))}return i},qo.prototype.showSelection=function(e){var t=this.cm.display;T(t.cursorDiv,e.cursors),T(t.selectionDiv,e.selection),null!=e.teTop&&(this.wrapper.style.top=e.teTop+"px",this.wrapper.style.left=e.teLeft+"px")},qo.prototype.reset=function(e){if(!this.contextMenuPending&&!this.composing){var t=this.cm;if(t.somethingSelected()){this.prevInput="";var n=t.getSelection();this.textarea.value=n,t.state.focused&&R(this.textarea),o&&a>=9&&(this.hasSelection=n)}else e||(this.prevInput=this.textarea.value="",o&&a>=9&&(this.hasSelection=null))}},qo.prototype.getField=function(){return this.textarea},qo.prototype.supportsTouch=function(){return!1},qo.prototype.focus=function(){if("nocursor"!=this.cm.options.readOnly&&(!v||B()!=this.textarea))try{this.textarea.focus()}catch(e){}},qo.prototype.blur=function(){this.textarea.blur()},qo.prototype.resetPosition=function(){this.wrapper.style.top=this.wrapper.style.left=0},qo.prototype.receivedFocus=function(){this.slowPoll()},qo.prototype.slowPoll=function(){var e=this;this.pollingFast||this.polling.set(this.cm.options.pollInterval,(function(){e.poll(),e.cm.state.focused&&e.slowPoll()}))},qo.prototype.fastPoll=function(){var e=!1,t=this;t.pollingFast=!0,t.polling.set(20,(function n(){t.poll()||e?(t.pollingFast=!1,t.slowPoll()):(e=!0,t.polling.set(60,n))}))},qo.prototype.poll=function(){var e=this,t=this.cm,n=this.textarea,i=this.prevInput;if(this.contextMenuPending||!t.state.focused||Oe(n)&&!i&&!this.composing||t.isReadOnly()||t.options.disableInput||t.state.keySeq)return!1;var r=n.value;if(r==i&&!t.somethingSelected())return!1;if(o&&a>=9&&this.hasSelection===r||b&&/[\uf700-\uf7ff]/.test(r))return t.display.input.reset(),!1;if(t.doc.sel==t.display.selForContextMenu){var s=r.charCodeAt(0);if(8203!=s||i||(i="​"),8666==s)return this.reset(),this.cm.execCommand("undo")}for(var l=0,u=Math.min(i.length,r.length);l1e3||r.indexOf("\n")>-1?n.value=e.prevInput="":e.prevInput=r,e.composing&&(e.composing.range.clear(),e.composing.range=t.markText(e.composing.start,t.getCursor("to"),{className:"CodeMirror-composing"}))})),!0},qo.prototype.ensurePolled=function(){this.pollingFast&&this.poll()&&(this.pollingFast=!1)},qo.prototype.onKeyPress=function(){o&&a>=9&&(this.hasSelection=null),this.fastPoll()},qo.prototype.onContextMenu=function(e){var t=this,n=t.cm,i=n.display,r=t.textarea;t.contextMenuPending&&t.contextMenuPending();var s=di(n,e),u=i.scroller.scrollTop;if(s&&!c){n.options.resetSelectionOnContextMenu&&-1==n.doc.sel.contains(s)&&tr(n,es)(n.doc,Dr(s),W);var d,h=r.style.cssText,p=t.wrapper.style.cssText,g=t.wrapper.offsetParent.getBoundingClientRect();if(t.wrapper.style.cssText="position: static",r.style.cssText="position: absolute; width: 30px; height: 30px;\n top: "+(e.clientY-g.top-5)+"px; left: "+(e.clientX-g.left-5)+"px;\n z-index: 1000; background: "+(o?"rgba(255, 255, 255, .05)":"transparent")+";\n outline: none; border-width: 0; outline: none; overflow: hidden; opacity: .05; filter: alpha(opacity=5);",l&&(d=window.scrollY),i.input.focus(),l&&window.scrollTo(null,d),i.input.reset(),n.somethingSelected()||(r.value=t.prevInput=" "),t.contextMenuPending=v,i.selForContextMenu=n.doc.sel,clearTimeout(i.detectingSelectAll),o&&a>=9&&m(),C){Ce(e);var f=function(){ge(window,"mouseup",f),setTimeout(v,20)};he(window,"mouseup",f)}else setTimeout(v,50)}function m(){if(null!=r.selectionStart){var e=n.somethingSelected(),s="​"+(e?r.value:"");r.value="⇚",r.value=s,t.prevInput=e?"":"​",r.selectionStart=1,r.selectionEnd=s.length,i.selForContextMenu=n.doc.sel}}function v(){if(t.contextMenuPending==v&&(t.contextMenuPending=!1,t.wrapper.style.cssText=p,r.style.cssText=h,o&&a<9&&i.scrollbars.setScrollTop(i.scroller.scrollTop=u),null!=r.selectionStart)){(!o||o&&a<9)&&m();var e=0,s=function(){i.selForContextMenu==n.doc.sel&&0==r.selectionStart&&r.selectionEnd>0&&"​"==t.prevInput?tr(n,ls)(n):e++<10?i.detectingSelectAll=setTimeout(s,500):(i.selForContextMenu=null,i.input.reset())};i.detectingSelectAll=setTimeout(s,200)}}},qo.prototype.readOnlyChanged=function(e){e||this.reset(),this.textarea.disabled="nocursor"==e,this.textarea.readOnly=!!e},qo.prototype.setUneditable=function(){},qo.prototype.needsContentAttribute=!1,function(e){var t=e.optionHandlers;function n(n,i,r,s){e.defaults[n]=i,r&&(t[n]=s?function(e,t,n){n!=Co&&r(e,t,n)}:r)}e.defineOption=n,e.Init=Co,n("value","",(function(e,t){return e.setValue(t)}),!0),n("mode",null,(function(e,t){e.doc.modeOption=t,jr(e)}),!0),n("indentUnit",2,jr,!0),n("indentWithTabs",!1),n("smartIndent",!0),n("tabSize",4,(function(e){Br(e),Un(e),hi(e)}),!0),n("lineSeparator",null,(function(e,t){if(e.doc.lineSep=t,t){var n=[],i=e.doc.first;e.doc.iter((function(e){for(var r=0;;){var s=e.text.indexOf(t,r);if(-1==s)break;r=s+t.length,n.push(tt(i,s))}i++}));for(var r=n.length-1;r>=0;r--)fs(e.doc,t,n[r],tt(n[r].line,n[r].ch+t.length))}})),n("specialChars",/[\u0000-\u001f\u007f-\u009f\u00ad\u061c\u200b\u200e\u200f\u2028\u2029\ufeff\ufff9-\ufffc]/g,(function(e,t,n){e.state.specialChars=new RegExp(t.source+(t.test("\t")?"":"|\t"),"g"),n!=Co&&e.refresh()})),n("specialCharPlaceholder",Qt,(function(e){return e.refresh()}),!0),n("electricChars",!0),n("inputStyle",v?"contenteditable":"textarea",(function(){throw new Error("inputStyle can not (yet) be changed in a running editor")}),!0),n("spellcheck",!1,(function(e,t){return e.getInputField().spellcheck=t}),!0),n("autocorrect",!1,(function(e,t){return e.getInputField().autocorrect=t}),!0),n("autocapitalize",!1,(function(e,t){return e.getInputField().autocapitalize=t}),!0),n("rtlMoveVisually",!A),n("wholeLineUpdateBefore",!0),n("theme","default",(function(e){wo(e),mr(e)}),!0),n("keyMap","default",(function(e,t,n){var i=Js(t),r=n!=Co&&Js(n);r&&r.detach&&r.detach(e,i),i.attach&&i.attach(e,r||null)})),n("extraKeys",null),n("configureMouse",null),n("lineWrapping",!1,So,!0),n("gutters",[],(function(e,t){e.display.gutterSpecs=gr(t,e.options.lineNumbers),mr(e)}),!0),n("fixedGutter",!0,(function(e,t){e.display.gutters.style.left=t?ai(e.display)+"px":"0",e.refresh()}),!0),n("coverGutterNextToScrollbar",!1,(function(e){return $i(e)}),!0),n("scrollbarStyle","native",(function(e){Vi(e),$i(e),e.display.scrollbars.setScrollTop(e.doc.scrollTop),e.display.scrollbars.setScrollLeft(e.doc.scrollLeft)}),!0),n("lineNumbers",!1,(function(e,t){e.display.gutterSpecs=gr(e.options.gutters,t),mr(e)}),!0),n("firstLineNumber",1,mr,!0),n("lineNumberFormatter",(function(e){return e}),mr,!0),n("showCursorWhenSelecting",!1,vi,!0),n("resetSelectionOnContextMenu",!0),n("lineWiseCopyCut",!0),n("pasteLinesPerSelection",!0),n("selectionsMayTouch",!1),n("readOnly",!1,(function(e,t){"nocursor"==t&&(Di(e),e.display.input.blur()),e.display.input.readOnlyChanged(t)})),n("screenReaderLabel",null,(function(e,t){t=""===t?null:t,e.display.input.screenReaderLabelChanged(t)})),n("disableInput",!1,(function(e,t){t||e.display.input.reset()}),!0),n("dragDrop",!0,Do),n("allowDropFileTypes",null),n("cursorBlinkRate",530),n("cursorScrollMargin",0),n("cursorHeight",1,vi,!0),n("singleCursorHeightPerLine",!0,vi,!0),n("workTime",100),n("workDelay",100),n("flattenSpans",!0,Br,!0),n("addModeClass",!1,Br,!0),n("pollInterval",100),n("undoDepth",200,(function(e,t){return e.doc.history.undoDepth=t})),n("historyEventDelay",1250),n("viewportMargin",10,(function(e){return e.refresh()}),!0),n("maxHighlightLength",1e4,Br,!0),n("moveInputWithCursor",!0,(function(e,t){t||e.display.input.resetPosition()})),n("tabindex",null,(function(e,t){return e.display.input.getField().tabIndex=t||""})),n("autofocus",null),n("direction","ltr",(function(e,t){return e.doc.setDirection(t)}),!0),n("phrases",null)}(To),function(e){var t=e.optionHandlers,n=e.helpers={};e.prototype={constructor:e,focus:function(){window.focus(),this.display.input.focus()},setOption:function(e,n){var i=this.options,r=i[e];i[e]==n&&"mode"!=e||(i[e]=n,t.hasOwnProperty(e)&&tr(this,t[e])(this,n,r),fe(this,"optionChange",this,e))},getOption:function(e){return this.options[e]},getDoc:function(){return this.doc},addKeyMap:function(e,t){this.state.keyMaps[t?"push":"unshift"](Js(e))},removeKeyMap:function(e){for(var t=this.state.keyMaps,n=0;nn&&(ko(this,r.head.line,e,!0),n=r.head.line,i==this.doc.sel.primIndex&&Bi(this));else{var 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t,n;if(e.crossDomain||e.scriptAttrs)return{send:function(i,r){t=E(" + + + + + + + + + + +
    +

    ipywidgets using JupyterLite + pyodide-kernel

    +

    + In this example, we connect to a pyodide kernel using wrapper classes and + in-browser Jupyter server the from the + jupyterlite project. +

    +

    + Thebe code that uses jupyterlite has been bindles separately in the + thebe-lite library, which should be side-loaded on the page prior to + thebe being loaded. thebe-lite is not a standalone library but + when thebe is bootstrapped with the useJupyterLite option set, it + will detect and use thebe-lite or throw an error. +

    +
    +
    +

    some additional setup

    + 
    +%pip install ipywidgets  
+
    +

    ipywidgets

    +

    A simple widgets example.

    + + 
    +# borrowed from https://jupyterlite.readthedocs.io/en/latest/_static/lab/index.html
+from ipywidgets import interact, IntSlider
+from IPython.display import Markdown, display
+
+slider = IntSlider()
+
+@interact(cookies=slider)
+def cookies(cookies=slider.value, calories=(0, 150)):
+    total_calories = calories * cookies
+    if cookies:
+        display(
+          Markdown(
+            f"If each cookie contains _{calories} calories_, \
+            _{cookies} cookies_ contain **{total_calories} calories**!"
+          )
+        )
+    else:
+        display(Markdown(f"No cookies!"))
+    if total_calories > 2000:
+        display(Markdown(f"> Maybe that's too many cookies..."))
+
    + +

    ipywidgets + matplotlib

    + 
    +import numpy as np
+import matplotlib.pyplot as plt
+%matplotlib inline
+
+from ipywidgets import interact, interactive
+from IPython.display import clear_output, display, HTML
+
+import numpy as np
+from scipy import integrate
+
+from matplotlib import pyplot as plt
+from mpl_toolkits.mplot3d import Axes3D
+from matplotlib.colors import cnames
+from matplotlib import animation
+
+def solve_lorenz(
+  N=10, angle=0.0, max_time=4.0, 
+  sigma=10.0, beta=8./3, rho=28.0):
+
+    fig = plt.figure()
+    ax = fig.add_axes([0, 0, 1, 1], projection='3d')
+    ax.axis('off')
+
+    # prepare the axes limits
+    ax.set_xlim((-25, 25))
+    ax.set_ylim((-35, 35))
+    ax.set_zlim((5, 55))
+    
+    def lorenz_deriv(x_y_z, t0, sigma=sigma, beta=beta, rho=rho):
+        """Compute the time-derivative of a Lorenz system."""
+        x, y, z = x_y_z
+        return [sigma * (y - x), x * (rho - z) - y, x * y - beta * z]
+
+    # Choose random starting points, uniformly distributed from -15 to 15
+    np.random.seed(1)
+    x0 = -15 + 30 * np.random.random((N, 3))
+
+    # Solve for the trajectories
+    t = np.linspace(0, max_time, int(250*max_time))
+    x_t = np.asarray([integrate.odeint(lorenz_deriv, x0i, t)
+                      for x0i in x0])
+    
+    # choose a different color for each trajectory
+    colors = plt.cm.viridis(np.linspace(0, 1, N))
+
+    for i in range(N):
+        x, y, z = x_t[i,:,:].T
+        lines = ax.plot(x, y, z, '-', c=colors[i])
+        plt.setp(lines, linewidth=2)
+
+    ax.view_init(30, angle)
+    plt.show()
+
+    return t, x_t
+
+w = interactive(solve_lorenz, angle=(0.,360.), max_time=(0.1, 4.0), 
+                N=(0,50), sigma=(0.0,50.0), rho=(0.0,50.0))
+display(w)
+
    +
    + + diff --git a/pr-preview/pr-707/ipywidgets-local.html b/pr-preview/pr-707/ipywidgets-local.html new file mode 100644 index 00000000..e15403a7 --- /dev/null +++ b/pr-preview/pr-707/ipywidgets-local.html @@ -0,0 +1,142 @@ + + + + ipywidgets - Thebe Demo + + + + + + + + + + +
    +

    ipywidgets using a local server

    +

    + To use this demo you to to have a jupyter server available and able to receive connections + from localhost. To start a local server, use the following command: +

    +

    + jupyter lab --NotebookApp.token=test-secret --NotebookApp.allow_origin='*' +

    +
    +
    +

    ipywidgets

    +

    A simple widgets example.

    + 
    +# borrowed from https://jupyterlite.readthedocs.io/en/latest/_static/lab/index.html
+from ipywidgets import interact, IntSlider
+from IPython.display import Markdown, display
+
+slider = IntSlider()
+
+@interact(cookies=slider)
+def cookies(cookies=slider.value, calories=(0, 150)):
+    total_calories = calories * cookies
+    if cookies:
+        display(
+          Markdown(
+            f"If each cookie contains _{calories} calories_, \
+            _{cookies} cookies_ contain **{total_calories} calories**!"
+          )
+        )
+    else:
+        display(Markdown(f"No cookies!"))
+    if total_calories > 2000:
+        display(Markdown(f"> Maybe that's too many cookies..."))
+
    + +

    ipywidgets + matplotlib

    + 
    +import numpy as np
+import matplotlib.pyplot as plt
+%matplotlib inline
+
+from ipywidgets import interact, interactive
+from IPython.display import clear_output, display, HTML
+
+import numpy as np
+from scipy import integrate
+
+from matplotlib import pyplot as plt
+from mpl_toolkits.mplot3d import Axes3D
+from matplotlib.colors import cnames
+from matplotlib import animation
+
+def solve_lorenz(
+  N=10, angle=0.0, max_time=4.0, 
+  sigma=10.0, beta=8./3, rho=28.0):
+
+    fig = plt.figure()
+    ax = fig.add_axes([0, 0, 1, 1], projection='3d')
+    ax.axis('off')
+
+    # prepare the axes limits
+    ax.set_xlim((-25, 25))
+    ax.set_ylim((-35, 35))
+    ax.set_zlim((5, 55))
+    
+    def lorenz_deriv(x_y_z, t0, sigma=sigma, beta=beta, rho=rho):
+        """Compute the time-derivative of a Lorenz system."""
+        x, y, z = x_y_z
+        return [sigma * (y - x), x * (rho - z) - y, x * y - beta * z]
+
+    # Choose random starting points, uniformly distributed from -15 to 15
+    np.random.seed(1)
+    x0 = -15 + 30 * np.random.random((N, 3))
+
+    # Solve for the trajectories
+    t = np.linspace(0, max_time, int(250*max_time))
+    x_t = np.asarray([integrate.odeint(lorenz_deriv, x0i, t)
+                      for x0i in x0])
+    
+    # choose a different color for each trajectory
+    colors = plt.cm.viridis(np.linspace(0, 1, N))
+
+    for i in range(N):
+        x, y, z = x_t[i,:,:].T
+        lines = ax.plot(x, y, z, '-', c=colors[i])
+        plt.setp(lines, linewidth=2)
+
+    ax.view_init(30, angle)
+    plt.show()
+
+    return t, x_t
+
+w = interactive(solve_lorenz, angle=(0.,360.), max_time=(0.1, 4.0), 
+                N=(0,50), sigma=(0.0,50.0), rho=(0.0,50.0))
+display(w)
+
    +
    + + diff --git a/pr-preview/pr-707/ipywidgets.html b/pr-preview/pr-707/ipywidgets.html new file mode 100644 index 00000000..3d508f52 --- /dev/null +++ b/pr-preview/pr-707/ipywidgets.html @@ -0,0 +1,149 @@ + + + + ipywidgets - Thebe Demo + + + + + + + + + + +
    +

    ipywidgets using mybinder.org

    +

    + As with the binder example activating this page will connect to + the public my binder service at https://mybinder.org service. +

    +

    + Although, here we launch from a different repo and create an ipywidgets based + plot using ipympl +

    +

    + In addition, ipympl in turn requires font-awesome fonts to be + loaded on the page. Other ipywidgets based libraries and custom widgets may + also require additional fonts, css or libraries to be side loaded. +

    +
    +
    +

    ipywidgets

    +

    A simple widgets example.

    + 
    +# borrowed from https://jupyterlite.readthedocs.io/en/latest/_static/lab/index.html
+from ipywidgets import interact, IntSlider
+from IPython.display import Markdown, display
+
+slider = IntSlider()
+
+@interact(cookies=slider)
+def cookies(cookies=slider.value, calories=(0, 150)):
+    total_calories = calories * cookies
+    if cookies:
+        display(
+          Markdown(
+            f"If each cookie contains _{calories} calories_, \
+            _{cookies} cookies_ contain **{total_calories} calories**!"
+          )
+        )
+    else:
+        display(Markdown(f"No cookies!"))
+    if total_calories > 2000:
+        display(Markdown(f"> Maybe that's too many cookies..."))
+
    + +

    ipywidgets + matplotlib

    + 
    +import numpy as np
+import matplotlib.pyplot as plt
+%matplotlib inline
+
+from ipywidgets import interact, interactive
+from IPython.display import clear_output, display, HTML
+
+import numpy as np
+from scipy import integrate
+
+from matplotlib import pyplot as plt
+from mpl_toolkits.mplot3d import Axes3D
+from matplotlib.colors import cnames
+from matplotlib import animation
+
+def solve_lorenz(
+  N=10, angle=0.0, max_time=4.0, 
+  sigma=10.0, beta=8./3, rho=28.0):
+
+    fig = plt.figure()
+    ax = fig.add_axes([0, 0, 1, 1], projection='3d')
+    ax.axis('off')
+
+    # prepare the axes limits
+    ax.set_xlim((-25, 25))
+    ax.set_ylim((-35, 35))
+    ax.set_zlim((5, 55))
+    
+    def lorenz_deriv(x_y_z, t0, sigma=sigma, beta=beta, rho=rho):
+        """Compute the time-derivative of a Lorenz system."""
+        x, y, z = x_y_z
+        return [sigma * (y - x), x * (rho - z) - y, x * y - beta * z]
+
+    # Choose random starting points, uniformly distributed from -15 to 15
+    np.random.seed(1)
+    x0 = -15 + 30 * np.random.random((N, 3))
+
+    # Solve for the trajectories
+    t = np.linspace(0, max_time, int(250*max_time))
+    x_t = np.asarray([integrate.odeint(lorenz_deriv, x0i, t)
+                      for x0i in x0])
+    
+    # choose a different color for each trajectory
+    colors = plt.cm.viridis(np.linspace(0, 1, N))
+
+    for i in range(N):
+        x, y, z = x_t[i,:,:].T
+        lines = ax.plot(x, y, z, '-', c=colors[i])
+        plt.setp(lines, linewidth=2)
+
+    ax.view_init(30, angle)
+    plt.show()
+
+    return t, x_t
+
+w = interactive(solve_lorenz, angle=(0.,360.), max_time=(0.1, 4.0), 
+                N=(0,50), sigma=(0.0,50.0), rho=(0.0,50.0))
+display(w)
+
    +
    + + diff --git a/pr-preview/pr-707/jupyter.html b/pr-preview/pr-707/jupyter.html new file mode 100644 index 00000000..89594320 --- /dev/null +++ b/pr-preview/pr-707/jupyter.html @@ -0,0 +1,65 @@ + + + + Jupyter - Thebe Demo + + + + + + + + + +
    +

    Simple plots using a local server

    +

    + To use this demo you to to have a jupyter server available and able to receive connections + from localhost. To start a local server, use the following command: +

    +

    + jupyter lab --NotebookApp.token=test-secret --NotebookApp.allow_origin='*' +

    +
    +
    + 
    +%matplotlib inline
+import numpy as np
+import matplotlib.pyplot as plt
+plt.ion()
+fig, ax = plt.subplots()
+ax.scatter(*np.random.randn(2, 100), c=np.random.randn(100))
+ax.set(title="Wow, an interactive plot!")
+
    +
    + + diff --git a/pr-preview/pr-707/lite.html b/pr-preview/pr-707/lite.html new file mode 100644 index 00000000..87ed094f --- /dev/null +++ b/pr-preview/pr-707/lite.html @@ -0,0 +1,76 @@ + + + + + + + + + + + + + + + +
    +

    Simple plots using JupyterLite + pyodide-kernel

    +

    + In this example, we connect to a pyodide kernel using wrapper classes and + in-browser Jupyter server the from the + jupyterlite project. +

    +

    + Thebe code that uses jupyterlite has been bindles separately in the + thebe-lite library, which should be side-loaded on the page prior to + thebe being loaded. thebe-lite is not a standalone library but + when thebe is bootstrapped with the useJupyterLite option set, it + will detect and use thebe-lite or throw an error. +

    +
    +
    + 
    +%matplotlib inline
+import numpy as np
+import matplotlib.pyplot as plt
+
+plt.ion()
+fig, ax = plt.subplots()
+ax.scatter(*np.random.randn(2, 100), c=np.random.randn(100))
+ax.set(title="Wow, an interactive plot!")
+
    +
    + + diff --git a/pr-preview/pr-707/main.css b/pr-preview/pr-707/main.css new file mode 100644 index 00000000..9f8c2434 --- /dev/null +++ b/pr-preview/pr-707/main.css @@ -0,0 +1,4 @@ +.thebe-activate, +.thebe-status { + margin-bottom: 8px; +} diff --git a/pr-preview/pr-707/mathjax.js b/pr-preview/pr-707/mathjax.js new file mode 100644 index 00000000..dba61b70 --- /dev/null +++ b/pr-preview/pr-707/mathjax.js @@ -0,0 +1,16 @@ +MathJax.Hub.Config({ + extensions: ['tex2jax.js'], + jax: ['input/TeX', 'output/HTML-CSS'], + tex2jax: { + inlineMath: [ + ['$', '$'], + ['\\(', '\\)'], + ], + displayMath: [ + ['$$', '$$'], + ['\\[', '\\]'], + ], + processEscapes: true, + }, + 'HTML-CSS': { fonts: ['TeX'] }, +}); diff --git a/pr-preview/pr-707/maths.html b/pr-preview/pr-707/maths.html new file mode 100644 index 00000000..dcf6c19d --- /dev/null +++ b/pr-preview/pr-707/maths.html @@ -0,0 +1,80 @@ + + + + Maths - Thebe Demo + + + + + + + + + + + +
    +

    Math Rendering Example

    +

    + When using thebe you may need to load other assets onto the page in order for certain + jupyter outputs to display as expected. thebe loads css and other + assets for core @jupyterlab and ipywidgets modules, but leaves the + rest to the consumer. +

    +

    + In this case, we're using Mathjax as a latex typesetter, so we need to preload that on our + page (view html source for details). +

    +

    + To use this demo you to to have a jupyter server available and able to receive connections + from localhost. To start a local server, use the following command: +

    +

    + jupyter lab --NotebookApp.token=test-secret --NotebookApp.allow_origin='*' +

    +
    +
    +

    maths with ipython display

    + 
    +from IPython.display import Math
+Math(rf'\int_{{t=0}}^1 \frac{{1}}{{1+t^2}}\,\text{{d}}t = ')
+
    +

    maths with LaTeX magic

    + 
    +%%latex
+\begin{align}
+\nabla \times \vec{\mathbf{B}} -\, \frac1c\, \frac{\partial\vec{\mathbf{E}}}{\partial t} & = \frac{4\pi}{c}\vec{\mathbf{j}} \\
+\nabla \cdot \vec{\mathbf{E}} & = 4 \pi \rho \\
+\nabla \times \vec{\mathbf{E}}\, +\, \frac1c\, \frac{\partial\vec{\mathbf{B}}}{\partial t} & = \vec{\mathbf{0}} \\
+\nabla \cdot \vec{\mathbf{B}} & = -42
+\end{align}
+
    +
    + + diff --git a/pr-preview/pr-707/paths.html b/pr-preview/pr-707/paths.html new file mode 100644 index 00000000..86c4c09b --- /dev/null +++ b/pr-preview/pr-707/paths.html @@ -0,0 +1,96 @@ + + + + Jupyter - Thebe Demo + + + + + + + + + +
    +

    Executing cells in context of the crrect notebook path

    +

    + Even though thebe works with individual cells, it still executes them in the context of the + a session. Sessions pair an individual kernel with a notebook context that requires a notebook's location + to be specified. As no notebook exists this can see suplerflous but it is still required in order + to propoerly execute code that is dependent on relative paths. +

    +

    + Consider a jupyter server started in a root folder, which in turn contains a folder called notebooks. + ipynb files are located in the notebooks folder and are developed with + paths suitable for locaing a data file in a data folder located in the same folder as the notebook. + Without the path being correctly set to the notebook's location, the code will fail to execute. +

    +

    + To use this demo you will need to start a local jupyter folder in a root folder with the following structure: + 

    +        .
+        -- notebooks/
+           -- screening.ipynb 
+           -- data/
+              -- data.csv
+
    + The file data.csv can contain anything and the notebook should simply include the following python code: + + 
    +            with open('data/data.csv', 'r') as f:
+                print(f.read())
+
    +

    + + to to have a jupyter server available and able to receive connections + from localhost. To start a local server, use the following command: +

    +

    + jupyter lab --NotebookApp.token=test-secret --NotebookApp.allow_origin='*' +

    +
    +
    + 
    +%matplotlib inline
+import numpy as np
+import pandas as pd
+import matplotlib.pyplot as plt
+
+df = pd.read_csv('data/data.csv')
+df.head()
+
    +
    + + diff --git a/pr-preview/pr-707/pypi/all.json b/pr-preview/pr-707/pypi/all.json new file mode 100644 index 00000000..de93979b --- /dev/null +++ b/pr-preview/pr-707/pypi/all.json @@ -0,0 +1,128 @@ +{ + "ipykernel": { + "releases": { + "6.9.2": [ + { + "comment_text": "", + "digests": { + "md5": "b2e5d923874d625779793ec3470e7adb", + "sha256": "4ed08daedf653e674e741f187b5cdd4f8b239a130618874fab9a2f34e1a4854f" + }, + "downloads": -1, + "filename": "ipykernel-6.9.2-py3-none-any.whl", + "has_sig": false, + "md5_digest": "b2e5d923874d625779793ec3470e7adb", + "packagetype": "bdist_wheel", + "python_version": "py3", + "requires_python": ">=3.10", + "size": 2724, + "upload_time": "2023-10-27T17:42:02.211680Z", + "upload_time_iso_8601": "2023-10-27T17:42:02.211680Z", + "url": "./ipykernel-6.9.2-py3-none-any.whl", + "yanked": false, + "yanked_reason": null + } + ] + } + }, + "piplite": { + "releases": { + "0.2.0": [ + { + "comment_text": "", + "digests": { + "md5": 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t=this.normalize(e.path),[n,i]=this._driveForPath(t);return n.newUntitled({...e,path:i}).then((e=>({...e,path:o.PathExt.join(t,e.name),serverPath:e.path})))}return this._defaultDrive.newUntitled(e)}delete(e){const[t,n]=this._driveForPath(e);return t.delete(n)}rename(e,t){const[n,i]=this._driveForPath(e),[s,r]=this._driveForPath(t);if(n!==s)throw Error("ContentsManager: renaming files must occur within a Drive");return n.rename(i,r).then((e=>({...e,path:this._toGlobalPath(n,r),serverPath:e.path})))}save(e,t={}){const n=this.normalize(e),[i,s]=this._driveForPath(e);return i.save(s,{...t,path:s}).then((e=>({...e,path:n,serverPath:e.path})))}copy(e,t){const[n,i]=this._driveForPath(e),[s,r]=this._driveForPath(t);if(n===s)return n.copy(i,r).then((e=>({...e,path:this._toGlobalPath(n,e.path),serverPath:e.path})));throw Error("Copying files between drives is not currently implemented")}createCheckpoint(e){const[t,n]=this._driveForPath(e);return t.createCheckpoint(n)}listCheckpoints(e){const[t,n]=this._driveForPath(e);return t.listCheckpoints(n)}restoreCheckpoint(e,t){const[n,i]=this._driveForPath(e);return n.restoreCheckpoint(i,t)}deleteCheckpoint(e,t){const[n,i]=this._driveForPath(e);return n.deleteCheckpoint(i,t)}_toGlobalPath(e,t){return e===this._defaultDrive?o.PathExt.removeSlash(t):`${e.name}:${o.PathExt.removeSlash(t)}`}_driveForPath(e){const t=this.driveName(e),n=this.localPath(e);return t?[this._additionalDrives.get(t),n]:[this._defaultDrive,n]}_onFileChanged(e,t){var n,i;if(e===this._defaultDrive)this._fileChanged.emit(t);else{let s=null,r=null;(null===(n=t.newValue)||void 0===n?void 0:n.path)&&(s={...t.newValue,path:this._toGlobalPath(e,t.newValue.path)}),(null===(i=t.oldValue)||void 0===i?void 0:i.path)&&(r={...t.oldValue,path:this._toGlobalPath(e,t.oldValue.path)}),this._fileChanged.emit({type:t.type,newValue:s,oldValue:r})}}};class h{constructor(e={}){var t,n,i;this._isDisposed=!1,this._fileChanged=new a.Signal(this),this.name=null!==(t=e.name)&&void 0!==t?t:"Default",this._apiEndpoint=null!==(n=e.apiEndpoint)&&void 0!==n?n:"api/contents",this.serverSettings=null!==(i=e.serverSettings)&&void 0!==i?i:l.ServerConnection.makeSettings()}get fileChanged(){return this._fileChanged}get isDisposed(){return this._isDisposed}dispose(){this.isDisposed||(this._isDisposed=!0,a.Signal.clearData(this))}async get(e,t){let n=this._getUrl(e);if(t){"notebook"===t.type&&delete t.format;const e=t.content?"1":"0",i={...t,content:e};n+=o.URLExt.objectToQueryString(i)}const i=this.serverSettings,s=await l.ServerConnection.makeRequest(n,{},i);if(200!==s.status)throw await l.ServerConnection.ResponseError.create(s);const r=await s.json();return c.validateContentsModel(r),r}getDownloadUrl(e){const t=this.serverSettings.baseUrl;let n=o.URLExt.join(t,"files",o.URLExt.encodeParts(e));const i=document.cookie.match("\\b_xsrf=([^;]*)\\b");if(i){const e=new URL(n);e.searchParams.append("_xsrf",i[1]),n=e.toString()}return Promise.resolve(n)}async newUntitled(e={}){var t;let n="{}";e&&(e.ext&&(e.ext=u.normalizeExtension(e.ext)),n=JSON.stringify(e));const i=this.serverSettings,s=this._getUrl(null!==(t=e.path)&&void 0!==t?t:""),r={method:"POST",body:n},o=await l.ServerConnection.makeRequest(s,r,i);if(201!==o.status)throw await l.ServerConnection.ResponseError.create(o);const a=await o.json();return c.validateContentsModel(a),this._fileChanged.emit({type:"new",oldValue:null,newValue:a}),a}async delete(e){const t=this._getUrl(e),n=this.serverSettings,i=await l.ServerConnection.makeRequest(t,{method:"DELETE"},n);if(204!==i.status)throw await l.ServerConnection.ResponseError.create(i);this._fileChanged.emit({type:"delete",oldValue:{path:e},newValue:null})}async rename(e,t){const n=this.serverSettings,i=this._getUrl(e),s={method:"PATCH",body:JSON.stringify({path:t})},r=await l.ServerConnection.makeRequest(i,s,n);if(200!==r.status)throw await l.ServerConnection.ResponseError.create(r);const o=await r.json();return c.validateContentsModel(o),this._fileChanged.emit({type:"rename",oldValue:{path:e},newValue:o}),o}async save(e,t={}){const n=this.serverSettings,i=this._getUrl(e),s={method:"PUT",body:JSON.stringify(t)},r=await l.ServerConnection.makeRequest(i,s,n);if(200!==r.status&&201!==r.status)throw await l.ServerConnection.ResponseError.create(r);const o=await r.json();return c.validateContentsModel(o),this._fileChanged.emit({type:"save",oldValue:null,newValue:o}),o}async copy(e,t){const n=this.serverSettings,i=this._getUrl(t),s={method:"POST",body:JSON.stringify({copy_from:e})},r=await l.ServerConnection.makeRequest(i,s,n);if(201!==r.status)throw await l.ServerConnection.ResponseError.create(r);const o=await r.json();return c.validateContentsModel(o),this._fileChanged.emit({type:"new",oldValue:null,newValue:o}),o}async createCheckpoint(e){const t=this._getUrl(e,"checkpoints"),n=await l.ServerConnection.makeRequest(t,{method:"POST"},this.serverSettings);if(201!==n.status)throw await l.ServerConnection.ResponseError.create(n);const i=await n.json();return c.validateCheckpointModel(i),i}async listCheckpoints(e){const t=this._getUrl(e,"checkpoints"),n=await l.ServerConnection.makeRequest(t,{},this.serverSettings);if(200!==n.status)throw await l.ServerConnection.ResponseError.create(n);const i=await n.json();if(!Array.isArray(i))throw new Error("Invalid Checkpoint list");for(let e=0;eo.URLExt.encodeParts(e))),n=this.serverSettings.baseUrl;return o.URLExt.join(n,this._apiEndpoint,...t)}}t.Drive=h,function(e){e.normalizeExtension=function(e){return e.length>0&&0!==e.indexOf(".")&&(e=`.${e}`),e}}(u||(u={}))},7033:(e,t,n)=>{"use strict";Object.defineProperty(t,"__esModule",{value:!0}),t.validateCheckpointModel=t.validateContentsModel=void 0;const i=n(8193);t.validateContentsModel=function(e){(0,i.validateProperty)(e,"name","string"),(0,i.validateProperty)(e,"path","string"),(0,i.validateProperty)(e,"type","string"),(0,i.validateProperty)(e,"created","string"),(0,i.validateProperty)(e,"last_modified","string"),(0,i.validateProperty)(e,"mimetype","object"),(0,i.validateProperty)(e,"content","object"),(0,i.validateProperty)(e,"format","object")},t.validateCheckpointModel=function(e){(0,i.validateProperty)(e,"id","string"),(0,i.validateProperty)(e,"last_modified","string")}},3354:(e,t,n)=>{"use strict";Object.defineProperty(t,"__esModule",{value:!0}),t.EventManager=void 0;const i=n(8920),s=n(9033),r=n(544),o=n(2700),a="api/events";t.EventManager=class{constructor(e={}){var t;this._socket=null,this.serverSettings=null!==(t=e.serverSettings)&&void 0!==t?t:o.ServerConnection.makeSettings(),this._poll=new s.Poll({factory:()=>this._subscribe()}),this._stream=new r.Stream(this),this._poll.start()}get isDisposed(){return this._poll.isDisposed}get stream(){return this._stream}dispose(){if(this.isDisposed)return;this._poll.dispose();const e=this._socket;e&&(this._socket=null,e.onopen=()=>{},e.onerror=()=>{},e.onmessage=()=>{},e.onclose=()=>{},e.close()),r.Signal.clearData(this),this._stream.stop()}async emit(e){const{serverSettings:t}=this,{baseUrl:n,token:s}=t,{makeRequest:r,ResponseError:l}=o.ServerConnection,c=i.URLExt.join(n,a)+(s?`?token=${s}`:""),u={body:JSON.stringify(e),method:"POST"},d=await r(c,u,t);if(204!==d.status)throw new l(d)}_subscribe(){return new Promise(((e,t)=>{if(this.isDisposed)return;const{token:n,WebSocket:s,wsUrl:r}=this.serverSettings,o=i.URLExt.join(r,a,"subscribe")+(n?`?token=${encodeURIComponent(n)}`:""),l=this._socket=new s(o),c=this._stream;l.onclose=()=>t(new Error("EventManager socket closed")),l.onmessage=e=>e.data&&c.emit(JSON.parse(e.data))}))}}},6914:function(e,t,n){"use strict";var i=this&&this.__createBinding||(Object.create?function(e,t,n,i){void 0===i&&(i=n);var s=Object.getOwnPropertyDescriptor(t,n);s&&!("get"in s?!t.__esModule:s.writable||s.configurable)||(s={enumerable:!0,get:function(){return t[n]}}),Object.defineProperty(e,i,s)}:function(e,t,n,i){void 0===i&&(i=n),e[i]=t[n]}),s=this&&this.__exportStar||function(e,t){for(var n in e)"default"===n||Object.prototype.hasOwnProperty.call(t,n)||i(t,e,n)};Object.defineProperty(t,"__esModule",{value:!0}),s(n(2918),t),s(n(2677),t),s(n(7593),t),s(n(3354),t),s(n(582),t),s(n(5312),t),s(n(8463),t),s(n(2700),t),s(n(7054),t),s(n(6052),t),s(n(8235),t),s(n(7523),t),s(n(87),t),s(n(4933),t)},5045:function(e,t,n){"use strict";var i=this&&this.__createBinding||(Object.create?function(e,t,n,i){void 0===i&&(i=n);var s=Object.getOwnPropertyDescriptor(t,n);s&&!("get"in s?!t.__esModule:s.writable||s.configurable)||(s={enumerable:!0,get:function(){return t[n]}}),Object.defineProperty(e,i,s)}:function(e,t,n,i){void 0===i&&(i=n),e[i]=t[n]}),s=this&&this.__setModuleDefault||(Object.create?function(e,t){Object.defineProperty(e,"default",{enumerable:!0,value:t})}:function(e,t){e.default=t}),r=this&&this.__importStar||function(e){if(e&&e.__esModule)return e;var t={};if(null!=e)for(var n in e)"default"!==n&&Object.prototype.hasOwnProperty.call(e,n)&&i(t,e,n);return s(t,e),t};Object.defineProperty(t,"__esModule",{value:!0}),t.CommHandler=void 0;const o=n(4643),a=r(n(1632));class l extends o.DisposableDelegate{constructor(e,t,n,i){super(i),this._target="",this._id="",this._id=t,this._target=e,this._kernel=n}get commId(){return this._id}get targetName(){return this._target}get onClose(){return this._onClose}set onClose(e){this._onClose=e}get onMsg(){return this._onMsg}set onMsg(e){this._onMsg=e}open(e,t,n=[]){if(this.isDisposed||this._kernel.isDisposed)throw new Error("Cannot open");const i=a.createMessage({msgType:"comm_open",channel:"shell",username:this._kernel.username,session:this._kernel.clientId,content:{comm_id:this._id,target_name:this._target,data:null!=e?e:{}},metadata:t,buffers:n});return this._kernel.sendShellMessage(i,!1,!0)}send(e,t,n=[],i=!0){if(this.isDisposed||this._kernel.isDisposed)throw new Error("Cannot send");const s=a.createMessage({msgType:"comm_msg",channel:"shell",username:this._kernel.username,session:this._kernel.clientId,content:{comm_id:this._id,data:e},metadata:t,buffers:n});return this._kernel.sendShellMessage(s,!1,i)}close(e,t,n=[]){if(this.isDisposed||this._kernel.isDisposed)throw new Error("Cannot close");const i=a.createMessage({msgType:"comm_close",channel:"shell",username:this._kernel.username,session:this._kernel.clientId,content:{comm_id:this._id,data:null!=e?e:{}},metadata:t,buffers:n}),s=this._kernel.sendShellMessage(i,!1,!0),r=this._onClose;return r&&r(a.createMessage({msgType:"comm_close",channel:"iopub",username:this._kernel.username,session:this._kernel.clientId,content:{comm_id:this._id,data:null!=e?e:{}},metadata:t,buffers:n})),this.dispose(),s}}t.CommHandler=l},2094:function(e,t,n){"use strict";var i=this&&this.__createBinding||(Object.create?function(e,t,n,i){void 0===i&&(i=n);var s=Object.getOwnPropertyDescriptor(t,n);s&&!("get"in s?!t.__esModule:s.writable||s.configurable)||(s={enumerable:!0,get:function(){return t[n]}}),Object.defineProperty(e,i,s)}:function(e,t,n,i){void 0===i&&(i=n),e[i]=t[n]}),s=this&&this.__setModuleDefault||(Object.create?function(e,t){Object.defineProperty(e,"default",{enumerable:!0,value:t})}:function(e,t){e.default=t}),r=this&&this.__importStar||function(e){if(e&&e.__esModule)return e;var t={};if(null!=e)for(var n in e)"default"!==n&&Object.prototype.hasOwnProperty.call(e,n)&&i(t,e,n);return s(t,e),t};Object.defineProperty(t,"__esModule",{value:!0}),t.KernelConnection=void 0;const o=n(8920),a=n(5168),l=n(544),c=n(6914),u=n(5045),d=r(n(1632)),h=n(9178),p=n(7411),f=r(n(5537)),m=n(5312),g=r(n(925)),v="_RESTARTING_";class _{constructor(e){var t,n,i,s;this._createSocket=(e=!0)=>{this._errorIfDisposed(),this._clearSocket(),this._updateConnectionStatus("connecting");const t=this.serverSettings,n=o.URLExt.join(t.wsUrl,g.KERNEL_SERVICE_URL,encodeURIComponent(this._id)),i=n.replace(/^((?:\w+:)?\/\/)(?:[^@\/]+@)/,"$1");console.debug(`Starting WebSocket: ${i}`);let s=o.URLExt.join(n,"channels?session_id="+encodeURIComponent(this._clientId));const r=t.token;t.appendToken&&""!==r&&(s+=`&token=${encodeURIComponent(r)}`);const a=e?this._supportedProtocols:[];this._ws=new t.WebSocket(s,a),this._ws.binaryType="arraybuffer";let l=!1;const u=async e=>{var n,i;if(!this._isDisposed){this._reason="",this._model=void 0;try{const n=await g.getKernelModel(this._id,t);this._model=n,"dead"===(null==n?void 0:n.execution_state)?this._updateStatus("dead"):this._onWSClose(e)}catch(t){if(t instanceof c.ServerConnection.NetworkError||503===(null===(n=t.response)||void 0===n?void 0:n.status)||424===(null===(i=t.response)||void 0===i?void 0:i.status)){const t=1e3*y.getRandomIntInclusive(10,30);setTimeout(u,t,e)}else this._reason="Kernel died unexpectedly",this._updateStatus("dead")}}},d=async e=>{l||(l=!0,await u(e))};this._ws.onmessage=this._onWSMessage,this._ws.onopen=this._onWSOpen,this._ws.onclose=d,this._ws.onerror=d},this._onWSOpen=e=>{if(""!==this._ws.protocol&&!this._supportedProtocols.includes(this._ws.protocol))throw console.log("Server selected unknown kernel wire protocol:",this._ws.protocol),this._updateStatus("dead"),new Error(`Unknown kernel wire protocol: ${this._ws.protocol}`);this._selectedProtocol=this._ws.protocol,this._ws.onclose=this._onWSClose,this._ws.onerror=this._onWSClose,this._updateConnectionStatus("connected")},this._onWSMessage=e=>{let t;try{t=(0,p.deserialize)(e.data,this._ws.protocol),f.validateMessage(t)}catch(e){throw e.message=`Kernel message validation error: ${e.message}`,e}this._kernelSession=t.header.session,this._msgChain=this._msgChain.then((()=>this._handleMessage(t))).catch((e=>{e.message.startsWith("Canceled future for ")&&console.error(e)})),this._anyMessage.emit({msg:t,direction:"recv"})},this._onWSClose=e=>{this.isDisposed||this._reconnect()},this._id="",this._name="",this._status="unknown",this._connectionStatus="connecting",this._kernelSession="",this._isDisposed=!1,this._ws=null,this._username="",this._reconnectLimit=7,this._reconnectAttempt=0,this._reconnectTimeout=null,this._supportedProtocols=Object.values(d.supportedKernelWebSocketProtocols),this._selectedProtocol="",this._futures=new Map,this._comms=new Map,this._targetRegistry=Object.create(null),this._info=new a.PromiseDelegate,this._pendingMessages=[],this._statusChanged=new l.Signal(this),this._connectionStatusChanged=new l.Signal(this),this._disposed=new l.Signal(this),this._iopubMessage=new l.Signal(this),this._anyMessage=new l.Signal(this),this._pendingInput=new l.Signal(this),this._unhandledMessage=new l.Signal(this),this._displayIdToParentIds=new Map,this._msgIdToDisplayIds=new Map,this._msgChain=Promise.resolve(),this._hasPendingInput=!1,this._reason="",this._noOp=()=>{},this._name=e.model.name,this._id=e.model.id,this.serverSettings=null!==(t=e.serverSettings)&&void 0!==t?t:c.ServerConnection.makeSettings(),this._clientId=null!==(n=e.clientId)&&void 0!==n?n:a.UUID.uuid4(),this._username=null!==(i=e.username)&&void 0!==i?i:"",this.handleComms=null===(s=e.handleComms)||void 0===s||s,this._createSocket()}get disposed(){return this._disposed}get statusChanged(){return this._statusChanged}get connectionStatusChanged(){return this._connectionStatusChanged}get iopubMessage(){return this._iopubMessage}get unhandledMessage(){return this._unhandledMessage}get model(){return this._model||{id:this.id,name:this.name,reason:this._reason}}get anyMessage(){return this._anyMessage}get pendingInput(){return this._pendingInput}get id(){return this._id}get name(){return this._name}get username(){return this._username}get clientId(){return this._clientId}get status(){return this._status}get connectionStatus(){return this._connectionStatus}get isDisposed(){return this._isDisposed}get info(){return this._info.promise}get spec(){return this._specPromise||(this._specPromise=m.KernelSpecAPI.getSpecs(this.serverSettings).then((e=>e.kernelspecs[this._name]))),this._specPromise}clone(e={}){return new _({model:this.model,username:this.username,serverSettings:this.serverSettings,handleComms:!1,...e})}dispose(){this.isDisposed||(this._isDisposed=!0,this._disposed.emit(),this._updateConnectionStatus("disconnected"),this._clearKernelState(),this._pendingMessages=[],this._clearSocket(),l.Signal.clearData(this))}sendShellMessage(e,t=!1,n=!0){return this._sendKernelShellControl(h.KernelShellFutureHandler,e,t,n)}sendControlMessage(e,t=!1,n=!0){return this._sendKernelShellControl(h.KernelControlFutureHandler,e,t,n)}_sendKernelShellControl(e,t,n=!1,i=!0){this._sendMessage(t),this._anyMessage.emit({msg:t,direction:"send"});const s=new e((()=>{const e=t.header.msg_id;this._futures.delete(e);const n=this._msgIdToDisplayIds.get(e);n&&(n.forEach((t=>{const n=this._displayIdToParentIds.get(t);if(n){const i=n.indexOf(e);if(-1===i)return;1===n.length?this._displayIdToParentIds.delete(t):(n.splice(i,1),this._displayIdToParentIds.set(t,n))}})),this._msgIdToDisplayIds.delete(e))}),t,n,i,this);return this._futures.set(t.header.msg_id,s),s}_sendMessage(e,t=!0){if("dead"===this.status)throw new Error("Kernel is dead");if((""===this._kernelSession||this._kernelSession===v)&&d.isInfoRequestMsg(e)){if("connected"===this.connectionStatus)return void this._ws.send((0,p.serialize)(e,this._ws.protocol));throw new Error("Could not send message: status is not connected")}if(t&&this._pendingMessages.length>0)this._pendingMessages.push(e);else if("connected"===this.connectionStatus&&this._kernelSession!==v)this._ws.send((0,p.serialize)(e,this._ws.protocol));else{if(!t)throw new Error("Could not send message");this._pendingMessages.push(e)}}async interrupt(){if(this.hasPendingInput=!1,"dead"===this.status)throw new Error("Kernel is dead");return g.interruptKernel(this.id,this.serverSettings)}async restart(){if("dead"===this.status)throw new Error("Kernel is dead");this._updateStatus("restarting"),this._clearKernelState(),this._kernelSession=v,await g.restartKernel(this.id,this.serverSettings),await this.reconnect(),this.hasPendingInput=!1}reconnect(){this._errorIfDisposed();const e=new a.PromiseDelegate,t=(n,i)=>{"connected"===i?(e.resolve(),this.connectionStatusChanged.disconnect(t,this)):"disconnected"===i&&(e.reject(new Error("Kernel connection disconnected")),this.connectionStatusChanged.disconnect(t,this))};return this.connectionStatusChanged.connect(t,this),this._reconnectAttempt=0,this._reconnect(),e.promise}async shutdown(){"dead"!==this.status&&await g.shutdownKernel(this.id,this.serverSettings),this.handleShutdown()}handleShutdown(){this._updateStatus("dead"),this.dispose()}async requestKernelInfo(){const e=d.createMessage({msgType:"kernel_info_request",channel:"shell",username:this._username,session:this._clientId,content:{}});let t;try{t=await y.handleShellMessage(this,e)}catch(e){if(this.isDisposed)return;throw e}if(this._errorIfDisposed(),t)return void 0===t.content.status&&(t.content.status="ok"),"ok"!==t.content.status?(this._info.reject("Kernel info reply errored"),t):(this._info.resolve(t.content),this._kernelSession=t.header.session,t)}requestComplete(e){const t=d.createMessage({msgType:"complete_request",channel:"shell",username:this._username,session:this._clientId,content:e});return y.handleShellMessage(this,t)}requestInspect(e){const t=d.createMessage({msgType:"inspect_request",channel:"shell",username:this._username,session:this._clientId,content:e});return y.handleShellMessage(this,t)}requestHistory(e){const t=d.createMessage({msgType:"history_request",channel:"shell",username:this._username,session:this._clientId,content:e});return y.handleShellMessage(this,t)}requestExecute(e,t=!0,n){const i=d.createMessage({msgType:"execute_request",channel:"shell",username:this._username,session:this._clientId,content:{silent:!1,store_history:!0,user_expressions:{},allow_stdin:!0,stop_on_error:!1,...e},metadata:n});return this.sendShellMessage(i,!0,t)}requestDebug(e,t=!0){const n=d.createMessage({msgType:"debug_request",channel:"control",username:this._username,session:this._clientId,content:e});return this.sendControlMessage(n,!0,t)}requestIsComplete(e){const t=d.createMessage({msgType:"is_complete_request",channel:"shell",username:this._username,session:this._clientId,content:e});return y.handleShellMessage(this,t)}requestCommInfo(e){const t=d.createMessage({msgType:"comm_info_request",channel:"shell",username:this._username,session:this._clientId,content:e});return y.handleShellMessage(this,t)}sendInputReply(e,t){const n=d.createMessage({msgType:"input_reply",channel:"stdin",username:this._username,session:this._clientId,content:e});n.parent_header=t,this._sendMessage(n),this._anyMessage.emit({msg:n,direction:"send"}),this.hasPendingInput=!1}createComm(e,t=a.UUID.uuid4()){if(!this.handleComms)throw new Error("Comms are disabled on this kernel connection");if(this._comms.has(t))throw new Error("Comm is already created");const n=new u.CommHandler(e,t,this,(()=>{this._unregisterComm(t)}));return this._comms.set(t,n),n}hasComm(e){return this._comms.has(e)}registerCommTarget(e,t){this.handleComms&&(this._targetRegistry[e]=t)}removeCommTarget(e,t){this.handleComms&&(this.isDisposed||this._targetRegistry[e]!==t||delete this._targetRegistry[e])}registerMessageHook(e,t){var n;const i=null===(n=this._futures)||void 0===n?void 0:n.get(e);i&&i.registerMessageHook(t)}removeMessageHook(e,t){var n;const i=null===(n=this._futures)||void 0===n?void 0:n.get(e);i&&i.removeMessageHook(t)}removeInputGuard(){this.hasPendingInput=!1}async _handleDisplayId(e,t){var n,i;const s=t.parent_header.msg_id;let r=this._displayIdToParentIds.get(e);if(r){const e={header:a.JSONExt.deepCopy(t.header),parent_header:a.JSONExt.deepCopy(t.parent_header),metadata:a.JSONExt.deepCopy(t.metadata),content:a.JSONExt.deepCopy(t.content),channel:t.channel,buffers:t.buffers?t.buffers.slice():[]};e.header.msg_type="update_display_data",await Promise.all(r.map((async t=>{const n=this._futures&&this._futures.get(t);n&&await n.handleMsg(e)})))}if("update_display_data"===t.header.msg_type)return!0;r=null!==(n=this._displayIdToParentIds.get(e))&&void 0!==n?n:[],-1===r.indexOf(s)&&r.push(s),this._displayIdToParentIds.set(e,r);const o=null!==(i=this._msgIdToDisplayIds.get(s))&&void 0!==i?i:[];return-1===o.indexOf(s)&&o.push(s),this._msgIdToDisplayIds.set(s,o),!1}_clearSocket(){null!==this._ws&&(this._ws.onopen=this._noOp,this._ws.onclose=this._noOp,this._ws.onerror=this._noOp,this._ws.onmessage=this._noOp,this._ws.close(),this._ws=null)}_updateStatus(e){this._status!==e&&"dead"!==this._status&&(this._status=e,y.logKernelStatus(this),this._statusChanged.emit(e),"dead"===e&&this.dispose())}_sendPending(){for(;"connected"===this.connectionStatus&&this._kernelSession!==v&&this._pendingMessages.length>0;)this._sendMessage(this._pendingMessages[0],!1),this._pendingMessages.shift()}_clearKernelState(){this._kernelSession="",this._pendingMessages=[],this._futures.forEach((e=>{e.dispose()})),this._comms.forEach((e=>{e.dispose()})),this._msgChain=Promise.resolve(),this._futures=new Map,this._comms=new Map,this._displayIdToParentIds.clear(),this._msgIdToDisplayIds.clear()}_assertCurrentMessage(e){if(this._errorIfDisposed(),e.header.session!==this._kernelSession)throw new Error(`Canceling handling of old message: ${e.header.msg_type}`)}async _handleCommOpen(e){this._assertCurrentMessage(e);const t=e.content,n=new u.CommHandler(t.target_name,t.comm_id,this,(()=>{this._unregisterComm(t.comm_id)}));this._comms.set(t.comm_id,n);try{const i=await y.loadObject(t.target_name,t.target_module,this._targetRegistry);await i(n,e)}catch(e){throw n.close(),console.error("Exception opening new comm"),e}}async _handleCommClose(e){this._assertCurrentMessage(e);const t=e.content,n=this._comms.get(t.comm_id);if(!n)return void console.error("Comm not found for comm id "+t.comm_id);this._unregisterComm(n.commId);const i=n.onClose;i&&await i(e),n.dispose()}async _handleCommMsg(e){this._assertCurrentMessage(e);const t=e.content,n=this._comms.get(t.comm_id);if(!n)return;const i=n.onMsg;i&&await i(e)}_unregisterComm(e){this._comms.delete(e)}_updateConnectionStatus(e){if(this._connectionStatus!==e){if(this._connectionStatus=e,"connecting"!==e&&(this._reconnectAttempt=0,clearTimeout(this._reconnectTimeout)),"dead"!==this.status)if("connected"===e){let e=this._kernelSession===v,t=this.requestKernelInfo(),n=!1,i=()=>{n||(n=!0,e&&this._kernelSession===v&&(this._kernelSession=""),clearTimeout(s),this._pendingMessages.length>0&&this._sendPending())};t.then(i);let s=setTimeout(i,3e3)}else this._updateStatus("unknown");this._connectionStatusChanged.emit(e)}}async _handleMessage(e){var t,n;let i=!1;if(e.parent_header&&"iopub"===e.channel&&(d.isDisplayDataMsg(e)||d.isUpdateDisplayDataMsg(e)||d.isExecuteResultMsg(e))){const n=(null!==(t=e.content.transient)&&void 0!==t?t:{}).display_id;n&&(i=await this._handleDisplayId(n,e),this._assertCurrentMessage(e))}if(!i&&e.parent_header){const t=e.parent_header,i=null===(n=this._futures)||void 0===n?void 0:n.get(t.msg_id);if(i)await i.handleMsg(e),this._assertCurrentMessage(e);else{const n=t.session===this.clientId;"iopub"!==e.channel&&n&&this._unhandledMessage.emit(e)}}if("iopub"===e.channel){switch(e.header.msg_type){case"status":{const t=e.content.execution_state;"restarting"===t&&Promise.resolve().then((async()=>{this._updateStatus("autorestarting"),this._clearKernelState(),await this.reconnect()})),this._updateStatus(t);break}case"comm_open":this.handleComms&&await this._handleCommOpen(e);break;case"comm_msg":this.handleComms&&await this._handleCommMsg(e);break;case"comm_close":this.handleComms&&await this._handleCommClose(e)}this.isDisposed||(this._assertCurrentMessage(e),this._iopubMessage.emit(e))}}_reconnect(){if(this._errorIfDisposed(),clearTimeout(this._reconnectTimeout),this._reconnectAttempt{if(t){if("undefined"==typeof requirejs)throw new Error("requirejs not found");requirejs([t],(n=>{void 0===n[e]?s(new Error(`Object '${e}' not found in module '${t}'`)):i(n[e])}),s)}else(null==n?void 0:n[e])?i(n[e]):s(new Error(`Object '${e}' not found in registry`))}))},e.getRandomIntInclusive=function(e,t){return e=Math.ceil(e),t=Math.floor(t),Math.floor(Math.random()*(t-e+1))+e}}(y||(y={}))},9178:function(e,t,n){"use strict";var i=this&&this.__createBinding||(Object.create?function(e,t,n,i){void 0===i&&(i=n);var s=Object.getOwnPropertyDescriptor(t,n);s&&!("get"in s?!t.__esModule:s.writable||s.configurable)||(s={enumerable:!0,get:function(){return t[n]}}),Object.defineProperty(e,i,s)}:function(e,t,n,i){void 0===i&&(i=n),e[i]=t[n]}),s=this&&this.__setModuleDefault||(Object.create?function(e,t){Object.defineProperty(e,"default",{enumerable:!0,value:t})}:function(e,t){e.default=t}),r=this&&this.__importStar||function(e){if(e&&e.__esModule)return e;var t={};if(null!=e)for(var n in e)"default"!==n&&Object.prototype.hasOwnProperty.call(e,n)&&i(t,e,n);return s(t,e),t};Object.defineProperty(t,"__esModule",{value:!0}),t.KernelShellFutureHandler=t.KernelControlFutureHandler=t.KernelFutureHandler=void 0;const o=n(5168),a=n(4643),l=r(n(1632));class c extends a.DisposableDelegate{constructor(e,t,n,i,s){super(e),this._status=0,this._stdin=u.noOp,this._iopub=u.noOp,this._reply=u.noOp,this._done=new o.PromiseDelegate,this._hooks=new u.HookList,this._disposeOnDone=!0,this._msg=t,n||this._setFlag(u.KernelFutureFlag.GotReply),this._disposeOnDone=i,this._kernel=s}get msg(){return this._msg}get done(){return this._done.promise}get onReply(){return this._reply}set onReply(e){this._reply=e}get onIOPub(){return this._iopub}set onIOPub(e){this._iopub=e}get onStdin(){return this._stdin}set onStdin(e){this._stdin=e}registerMessageHook(e){if(this.isDisposed)throw new Error("Kernel future is disposed");this._hooks.add(e)}removeMessageHook(e){this.isDisposed||this._hooks.remove(e)}sendInputReply(e,t){this._kernel.sendInputReply(e,t)}dispose(){this._stdin=u.noOp,this._iopub=u.noOp,this._reply=u.noOp,this._hooks=null,this._testFlag(u.KernelFutureFlag.IsDone)||(this._done.promise.catch((()=>{})),this._done.reject(new Error(`Canceled future for ${this.msg.header.msg_type} message before replies were done`))),super.dispose()}async handleMsg(e){switch(e.channel){case"control":case"shell":e.channel===this.msg.channel&&e.parent_header.msg_id===this.msg.header.msg_id&&await this._handleReply(e);break;case"stdin":await this._handleStdin(e);break;case"iopub":await this._handleIOPub(e)}}async _handleReply(e){const t=this._reply;t&&await t(e),this._replyMsg=e,this._setFlag(u.KernelFutureFlag.GotReply),this._testFlag(u.KernelFutureFlag.GotIdle)&&this._handleDone()}async _handleStdin(e){this._kernel.hasPendingInput=!0;const t=this._stdin;t&&await t(e)}async _handleIOPub(e){const t=await this._hooks.process(e),n=this._iopub;t&&n&&await n(e),l.isStatusMsg(e)&&"idle"===e.content.execution_state&&(this._setFlag(u.KernelFutureFlag.GotIdle),this._testFlag(u.KernelFutureFlag.GotReply)&&this._handleDone())}_handleDone(){this._testFlag(u.KernelFutureFlag.IsDone)||(this._setFlag(u.KernelFutureFlag.IsDone),this._done.resolve(this._replyMsg),this._disposeOnDone&&this.dispose())}_testFlag(e){return 0!=(this._status&e)}_setFlag(e){this._status|=e}}var u;t.KernelFutureHandler=c,t.KernelControlFutureHandler=class extends c{},t.KernelShellFutureHandler=class extends c{},function(e){e.noOp=()=>{};const t="function"==typeof requestAnimationFrame?requestAnimationFrame:setImmediate;let n;e.HookList=class{constructor(){this._hooks=[]}add(e){this.remove(e),this._hooks.push(e)}remove(e){const t=this._hooks.indexOf(e);t>=0&&(this._hooks[t]=null,this._scheduleCompact())}async process(e){await this._processing;const t=new o.PromiseDelegate;let n;this._processing=t.promise;for(let i=this._hooks.length-1;i>=0;i--){const s=this._hooks[i];if(null!==s){try{n=await s(e)}catch(e){n=!0,console.error(e)}if(!1===n)return t.resolve(void 0),!1}}return t.resolve(void 0),!0}_scheduleCompact(){this._compactScheduled||(this._compactScheduled=!0,t((()=>{this._processing=this._processing.then((()=>{this._compactScheduled=!1,this._compact()}))})))}_compact(){let e=0;for(let t=0,n=this._hooks.length;t{"use strict";Object.defineProperty(t,"__esModule",{value:!0})},2810:(e,t,n)=>{"use strict";Object.defineProperty(t,"__esModule",{value:!0}),t.KernelManager=void 0;const i=n(9033),s=n(544),r=n(6914),o=n(2918),a=n(925),l=n(2094);class c extends o.BaseManager{constructor(e={}){var t;super(e),this._isReady=!1,this._kernelConnections=new Set,this._models=new Map,this._runningChanged=new s.Signal(this),this._connectionFailure=new s.Signal(this),this._pollModels=new i.Poll({auto:!1,factory:()=>this.requestRunning(),frequency:{interval:1e4,backoff:!0,max:3e5},name:"@jupyterlab/services:KernelManager#models",standby:null!==(t=e.standby)&&void 0!==t?t:"when-hidden"}),this._ready=(async()=>{await this._pollModels.start(),await this._pollModels.tick,this._isReady=!0})()}get isReady(){return this._isReady}get ready(){return this._ready}get runningChanged(){return this._runningChanged}get connectionFailure(){return this._connectionFailure}dispose(){this.isDisposed||(this._models.clear(),this._kernelConnections.forEach((e=>e.dispose())),this._pollModels.dispose(),super.dispose())}connectTo(e){var t;const{id:n}=e.model;let i=null===(t=e.handleComms)||void 0===t||t;if(void 0===e.handleComms)for(const e of this._kernelConnections)if(e.id===n&&e.handleComms){i=!1;break}const s=new l.KernelConnection({handleComms:i,...e,serverSettings:this.serverSettings});return this._onStarted(s),this._models.has(n)||this.refreshRunning().catch((()=>{})),s}running(){return this._models.values()}async refreshRunning(){await this._pollModels.refresh(),await this._pollModels.tick}async startNew(e={},t={}){const n=await(0,a.startNew)(e,this.serverSettings);return this.connectTo({...t,model:n})}async shutdown(e){await(0,a.shutdownKernel)(e,this.serverSettings),await this.refreshRunning()}async shutdownAll(){await this.refreshRunning(),await Promise.all([...this._models.keys()].map((e=>(0,a.shutdownKernel)(e,this.serverSettings)))),await this.refreshRunning()}async findById(e){return this._models.has(e)||await this.refreshRunning(),this._models.get(e)}async requestRunning(){var e,t;let n;try{n=await(0,a.listRunning)(this.serverSettings)}catch(n){throw(n instanceof r.ServerConnection.NetworkError||503===(null===(e=n.response)||void 0===e?void 0:e.status)||424===(null===(t=n.response)||void 0===t?void 0:t.status))&&this._connectionFailure.emit(n),n}this.isDisposed||this._models.size===n.length&&n.every((e=>{const t=this._models.get(e.id);return!!t&&t.connections===e.connections&&t.execution_state===e.execution_state&&t.last_activity===e.last_activity&&t.name===e.name&&t.reason===e.reason&&t.traceback===e.traceback}))||(this._models=new Map(n.map((e=>[e.id,e]))),this._kernelConnections.forEach((e=>{this._models.has(e.id)||e.handleShutdown()})),this._runningChanged.emit(n))}_onStarted(e){this._kernelConnections.add(e),e.statusChanged.connect(this._onStatusChanged,this),e.disposed.connect(this._onDisposed,this)}_onDisposed(e){this._kernelConnections.delete(e),this.refreshRunning().catch((()=>{}))}_onStatusChanged(e,t){"dead"===t&&this.refreshRunning().catch((()=>{}))}}t.KernelManager=c,function(e){e.NoopManager=class extends e{constructor(){super(...arguments),this._readyPromise=new Promise((()=>{}))}get isActive(){return!1}get parentReady(){return super.ready}async startNew(e={},t={}){return Promise.reject(new Error("Not implemented in no-op Kernel Manager"))}connectTo(e){throw new Error("Not implemented in no-op Kernel Manager")}async shutdown(e){return Promise.reject(new Error("Not implemented in no-op Kernel Manager"))}get ready(){return this.parentReady.then((()=>this._readyPromise))}async requestRunning(){return Promise.resolve()}}}(c=t.KernelManager||(t.KernelManager={}))},1632:(e,t,n)=>{"use strict";Object.defineProperty(t,"__esModule",{value:!0}),t.supportedKernelWebSocketProtocols=t.isInputReplyMsg=t.isInputRequestMsg=t.isDebugReplyMsg=t.isDebugRequestMsg=t.isExecuteReplyMsg=t.isInfoRequestMsg=t.isCommMsgMsg=t.isCommCloseMsg=t.isCommOpenMsg=t.isDebugEventMsg=t.isClearOutputMsg=t.isStatusMsg=t.isErrorMsg=t.isExecuteResultMsg=t.isExecuteInputMsg=t.isUpdateDisplayDataMsg=t.isDisplayDataMsg=t.isStreamMsg=t.createMessage=void 0;const i=n(5168);t.createMessage=function(e){var t,n,s,r,o;return{buffers:null!==(t=e.buffers)&&void 0!==t?t:[],channel:e.channel,content:e.content,header:{date:(new Date).toISOString(),msg_id:null!==(n=e.msgId)&&void 0!==n?n:i.UUID.uuid4(),msg_type:e.msgType,session:e.session,username:null!==(s=e.username)&&void 0!==s?s:"",version:"5.2"},metadata:null!==(r=e.metadata)&&void 0!==r?r:{},parent_header:null!==(o=e.parentHeader)&&void 0!==o?o:{}}},t.isStreamMsg=function(e){return"stream"===e.header.msg_type},t.isDisplayDataMsg=function(e){return"display_data"===e.header.msg_type},t.isUpdateDisplayDataMsg=function(e){return"update_display_data"===e.header.msg_type},t.isExecuteInputMsg=function(e){return"execute_input"===e.header.msg_type},t.isExecuteResultMsg=function(e){return"execute_result"===e.header.msg_type},t.isErrorMsg=function(e){return"error"===e.header.msg_type},t.isStatusMsg=function(e){return"status"===e.header.msg_type},t.isClearOutputMsg=function(e){return"clear_output"===e.header.msg_type},t.isDebugEventMsg=function(e){return"debug_event"===e.header.msg_type},t.isCommOpenMsg=function(e){return"comm_open"===e.header.msg_type},t.isCommCloseMsg=function(e){return"comm_close"===e.header.msg_type},t.isCommMsgMsg=function(e){return"comm_msg"===e.header.msg_type},t.isInfoRequestMsg=function(e){return"kernel_info_request"===e.header.msg_type},t.isExecuteReplyMsg=function(e){return"execute_reply"===e.header.msg_type},t.isDebugRequestMsg=function(e){return"debug_request"===e.header.msg_type},t.isDebugReplyMsg=function(e){return"debug_reply"===e.header.msg_type},t.isInputRequestMsg=function(e){return"input_request"===e.header.msg_type},t.isInputReplyMsg=function(e){return"input_reply"===e.header.msg_type},(t.supportedKernelWebSocketProtocols||(t.supportedKernelWebSocketProtocols={})).v1KernelWebsocketJupyterOrg="v1.kernel.websocket.jupyter.org"},925:(e,t,n)=>{"use strict";Object.defineProperty(t,"__esModule",{value:!0}),t.getKernelModel=t.shutdownKernel=t.interruptKernel=t.restartKernel=t.startNew=t.listRunning=t.KERNEL_SERVICE_URL=void 0;const i=n(2700),s=n(8920),r=n(5537);t.KERNEL_SERVICE_URL="api/kernels",t.listRunning=async function(e=i.ServerConnection.makeSettings()){const n=s.URLExt.join(e.baseUrl,t.KERNEL_SERVICE_URL),o=await i.ServerConnection.makeRequest(n,{},e);if(200!==o.status)throw await i.ServerConnection.ResponseError.create(o);const a=await o.json();return(0,r.validateModels)(a),a},t.startNew=async function(e={},n=i.ServerConnection.makeSettings()){const o=s.URLExt.join(n.baseUrl,t.KERNEL_SERVICE_URL),a={method:"POST",body:JSON.stringify(e)},l=await i.ServerConnection.makeRequest(o,a,n);if(201!==l.status)throw await i.ServerConnection.ResponseError.create(l);const c=await l.json();return(0,r.validateModel)(c),c},t.restartKernel=async function(e,n=i.ServerConnection.makeSettings()){const o=s.URLExt.join(n.baseUrl,t.KERNEL_SERVICE_URL,encodeURIComponent(e),"restart"),a=await i.ServerConnection.makeRequest(o,{method:"POST"},n);if(200!==a.status)throw await i.ServerConnection.ResponseError.create(a);const l=await a.json();(0,r.validateModel)(l)},t.interruptKernel=async function(e,n=i.ServerConnection.makeSettings()){const r=s.URLExt.join(n.baseUrl,t.KERNEL_SERVICE_URL,encodeURIComponent(e),"interrupt"),o=await i.ServerConnection.makeRequest(r,{method:"POST"},n);if(204!==o.status)throw await i.ServerConnection.ResponseError.create(o)},t.shutdownKernel=async function(e,n=i.ServerConnection.makeSettings()){const r=s.URLExt.join(n.baseUrl,t.KERNEL_SERVICE_URL,encodeURIComponent(e)),o=await i.ServerConnection.makeRequest(r,{method:"DELETE"},n);if(404===o.status){const t=`The kernel "${e}" does not exist on the server`;console.warn(t)}else if(204!==o.status)throw await i.ServerConnection.ResponseError.create(o)},t.getKernelModel=async function(e,n=i.ServerConnection.makeSettings()){const o=s.URLExt.join(n.baseUrl,t.KERNEL_SERVICE_URL,encodeURIComponent(e)),a=await i.ServerConnection.makeRequest(o,{},n);if(404===a.status)return;if(200!==a.status)throw await i.ServerConnection.ResponseError.create(a);const l=await a.json();return(0,r.validateModel)(l),l}},7411:function(e,t,n){"use strict";var i=this&&this.__createBinding||(Object.create?function(e,t,n,i){void 0===i&&(i=n);var s=Object.getOwnPropertyDescriptor(t,n);s&&!("get"in s?!t.__esModule:s.writable||s.configurable)||(s={enumerable:!0,get:function(){return t[n]}}),Object.defineProperty(e,i,s)}:function(e,t,n,i){void 0===i&&(i=n),e[i]=t[n]}),s=this&&this.__setModuleDefault||(Object.create?function(e,t){Object.defineProperty(e,"default",{enumerable:!0,value:t})}:function(e,t){e.default=t}),r=this&&this.__importStar||function(e){if(e&&e.__esModule)return e;var t={};if(null!=e)for(var n in e)"default"!==n&&Object.prototype.hasOwnProperty.call(e,n)&&i(t,e,n);return 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this._path}get type(){return this._type}get name(){return this._name}get model(){return{id:this.id,kernel:this.kernel&&{id:this.kernel.id,name:this.kernel.name},path:this._path,type:this._type,name:this._name}}get isDisposed(){return this._isDisposed}update(e){const t=this.model;if(this._path=e.path,this._name=e.name,this._type=e.type,null===this._kernel&&null!==e.kernel||null!==this._kernel&&null===e.kernel||null!==this._kernel&&null!==e.kernel&&this._kernel.id!==e.kernel.id){null!==this._kernel&&this._kernel.dispose();const t=this._kernel||null;this.setupKernel(e.kernel);const n=this._kernel||null;this._kernelChanged.emit({name:"kernel",oldValue:t,newValue:n})}this._handleModelChange(t)}dispose(){if(!this.isDisposed){if(this._isDisposed=!0,this._disposed.emit(),this._kernel){this._kernel.dispose();const e=this._kernel;this._kernel=null;const t=this._kernel;this._kernelChanged.emit({name:"kernel",oldValue:e,newValue:t})}i.Signal.clearData(this)}}async setPath(e){if(this.isDisposed)throw new Error("Session is disposed");await this._patch({path:e})}async setName(e){if(this.isDisposed)throw new Error("Session is disposed");await this._patch({name:e})}async setType(e){if(this.isDisposed)throw new Error("Session is disposed");await this._patch({type:e})}async changeKernel(e){if(this.isDisposed)throw new Error("Session is disposed");return await this._patch({kernel:e}),this.kernel}async shutdown(){if(this.isDisposed)throw new Error("Session is disposed");await(0,r.shutdownSession)(this.id,this.serverSettings),this.dispose()}setupKernel(e){if(null===e)return void(this._kernel=null);const t=this._connectToKernel({...this._kernelConnectionOptions,model:e,username:this._username,clientId:this._clientId,serverSettings:this.serverSettings});this._kernel=t,t.statusChanged.connect(this.onKernelStatus,this),t.connectionStatusChanged.connect(this.onKernelConnectionStatus,this),t.pendingInput.connect(this.onPendingInput,this),t.unhandledMessage.connect(this.onUnhandledMessage,this),t.iopubMessage.connect(this.onIOPubMessage,this),t.anyMessage.connect(this.onAnyMessage,this)}onKernelStatus(e,t){this._statusChanged.emit(t)}onKernelConnectionStatus(e,t){this._connectionStatusChanged.emit(t)}onPendingInput(e,t){this._pendingInput.emit(t)}onIOPubMessage(e,t){this._iopubMessage.emit(t)}onUnhandledMessage(e,t){this._unhandledMessage.emit(t)}onAnyMessage(e,t){this._anyMessage.emit(t)}async _patch(e){const t=await(0,r.updateSession)({...e,id:this._id},this.serverSettings);return this.update(t),t}_handleModelChange(e){e.name!==this._name&&this._propertyChanged.emit("name"),e.type!==this._type&&this._propertyChanged.emit("type"),e.path!==this._path&&this._propertyChanged.emit("path")}}},7054:function(e,t,n){"use strict";var i=this&&this.__createBinding||(Object.create?function(e,t,n,i){void 0===i&&(i=n);var s=Object.getOwnPropertyDescriptor(t,n);s&&!("get"in s?!t.__esModule:s.writable||s.configurable)||(s={enumerable:!0,get:function(){return t[n]}}),Object.defineProperty(e,i,s)}:function(e,t,n,i){void 0===i&&(i=n),e[i]=t[n]}),s=this&&this.__setModuleDefault||(Object.create?function(e,t){Object.defineProperty(e,"default",{enumerable:!0,value:t})}:function(e,t){e.default=t}),r=this&&this.__importStar||function(e){if(e&&e.__esModule)return e;var t={};if(null!=e)for(var n in e)"default"!==n&&Object.prototype.hasOwnProperty.call(e,n)&&i(t,e,n);return s(t,e),t},o=this&&this.__exportStar||function(e,t){for(var n in e)"default"===n||Object.prototype.hasOwnProperty.call(t,n)||i(t,e,n)};Object.defineProperty(t,"__esModule",{value:!0}),t.SessionAPI=t.Session=void 0;const a=r(n(658));t.Session=a;const l=r(n(8351));t.SessionAPI=l,o(n(6699),t)},6699:(e,t,n)=>{"use strict";Object.defineProperty(t,"__esModule",{value:!0}),t.SessionManager=void 0;const i=n(9033),s=n(544),r=n(2700),o=n(2918),a=n(5575),l=n(8351);class c extends o.BaseManager{constructor(e){var t;super(e),this._isReady=!1,this._sessionConnections=new Set,this._models=new Map,this._runningChanged=new s.Signal(this),this._connectionFailure=new s.Signal(this),this._connectToKernel=e=>this._kernelManager.connectTo(e),this._kernelManager=e.kernelManager,this._pollModels=new i.Poll({auto:!1,factory:()=>this.requestRunning(),frequency:{interval:1e4,backoff:!0,max:3e5},name:"@jupyterlab/services:SessionManager#models",standby:null!==(t=e.standby)&&void 0!==t?t:"when-hidden"}),this._ready=(async()=>{await this._pollModels.start(),await 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this.refreshRunning()}async shutdownAll(){await this.refreshRunning(),await Promise.all([...this._models.keys()].map((e=>(0,l.shutdownSession)(e,this.serverSettings)))),await this.refreshRunning()}async stopIfNeeded(e){try{const t=(await(0,l.listRunning)(this.serverSettings)).filter((t=>t.path===e));if(1===t.length){const e=t[0].id;await this.shutdown(e)}}catch(e){}}async findById(e){return this._models.has(e)||await this.refreshRunning(),this._models.get(e)}async findByPath(e){for(const t of this._models.values())if(t.path===e)return t;await this.refreshRunning();for(const t of this._models.values())if(t.path===e)return t}async requestRunning(){var e,t;let n;try{n=await(0,l.listRunning)(this.serverSettings)}catch(n){throw(n instanceof r.ServerConnection.NetworkError||503===(null===(e=n.response)||void 0===e?void 0:e.status)||424===(null===(t=n.response)||void 0===t?void 0:t.status))&&this._connectionFailure.emit(n),n}this.isDisposed||this._models.size===n.length&&n.every((e=>{var t,n,i,s;const r=this._models.get(e.id);return!!r&&(null===(t=r.kernel)||void 0===t?void 0:t.id)===(null===(n=e.kernel)||void 0===n?void 0:n.id)&&(null===(i=r.kernel)||void 0===i?void 0:i.name)===(null===(s=e.kernel)||void 0===s?void 0:s.name)&&r.name===e.name&&r.path===e.path&&r.type===e.type}))||(this._models=new Map(n.map((e=>[e.id,e]))),this._sessionConnections.forEach((e=>{this._models.has(e.id)?e.update(this._models.get(e.id)):e.dispose()})),this._runningChanged.emit(n))}_onStarted(e){this._sessionConnections.add(e),e.disposed.connect(this._onDisposed,this),e.propertyChanged.connect(this._onChanged,this),e.kernelChanged.connect(this._onChanged,this)}_onDisposed(e){this._sessionConnections.delete(e),this.refreshRunning().catch((()=>{}))}_onChanged(){this.refreshRunning().catch((()=>{}))}}t.SessionManager=c,function(e){e.NoopManager=class extends e{constructor(){super(...arguments),this._readyPromise=new Promise((()=>{}))}get isActive(){return!1}get parentReady(){return super.ready}async startNew(e,t={}){return Promise.reject(new Error("Not implemented in no-op Session Manager"))}connectTo(e){throw Error("Not implemented in no-op Session Manager")}get ready(){return this.parentReady.then((()=>this._readyPromise))}async shutdown(e){return Promise.reject(new Error("Not implemented in no-op Session Manager"))}async requestRunning(){return Promise.resolve()}}}(c=t.SessionManager||(t.SessionManager={}))},8351:(e,t,n)=>{"use strict";Object.defineProperty(t,"__esModule",{value:!0}),t.updateSession=t.startSession=t.getSessionModel=t.shutdownSession=t.getSessionUrl=t.listRunning=t.SESSION_SERVICE_URL=void 0;const i=n(2700),s=n(8920),r=n(8775);function o(e,n){return s.URLExt.join(e,t.SESSION_SERVICE_URL,n)}t.SESSION_SERVICE_URL="api/sessions",t.listRunning=async function(e=i.ServerConnection.makeSettings()){const n=s.URLExt.join(e.baseUrl,t.SESSION_SERVICE_URL),o=await i.ServerConnection.makeRequest(n,{},e);if(200!==o.status)throw await 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Error("Plugin `id` parameter is required for settings fetch.");const{serverSettings:t}=this,{baseUrl:n,appUrl:i}=t,{makeRequest:s,ResponseError:o}=r.ServerConnection,l=n+i,c=a.url(l,e),u=await s(c,{},t);if(200!==u.status)throw await o.create(u);return u.json()}async list(e){var t,n,i,s;const{serverSettings:o}=this,{baseUrl:l,appUrl:c}=o,{makeRequest:u,ResponseError:d}=r.ServerConnection,h=l+c,p=a.url(h,"","ids"===e),f=await u(p,{},o);if(200!==f.status)throw new d(f);const m=await f.json(),g=null!==(n=null===(t=null==m?void 0:m.settings)||void 0===t?void 0:t.map((e=>e.id)))&&void 0!==n?n:[];let v=[];return e||(v=null!==(s=null===(i=null==m?void 0:m.settings)||void 0===i?void 0:i.map((e=>(e.data={composite:{},user:{}},e))))&&void 0!==s?s:[]),{ids:g,values:v}}async save(e,t){const{serverSettings:n}=this,{baseUrl:i,appUrl:s}=n,{makeRequest:o,ResponseError:l}=r.ServerConnection,c=i+s,u=a.url(c,e),d={body:JSON.stringify({raw:t}),method:"PUT"},h=await o(u,d,n);if(204!==h.status)throw new 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t=JSON.parse(e.data);"disconnect"===t[0]&&this.dispose(),"connecting"!==this._connectionStatus?this._messageReceived.emit({type:t[0],content:t.slice(1)}):"setup"===t[0]&&this._updateConnectionStatus("connected")},this._onWSClose=e=>{console.warn(`Terminal websocket closed: ${e.code}`),this.isDisposed||this._reconnect()},this._connectionStatus="connecting",this._connectionStatusChanged=new r.Signal(this),this._isDisposed=!1,this._disposed=new r.Signal(this),this._messageReceived=new r.Signal(this),this._reconnectTimeout=null,this._ws=null,this._noOp=()=>{},this._reconnectLimit=7,this._reconnectAttempt=0,this._pendingMessages=[],this._name=e.model.name,this.serverSettings=null!==(t=e.serverSettings)&&void 0!==t?t:o.ServerConnection.makeSettings(),this._createSocket()}get disposed(){return this._disposed}get messageReceived(){return this._messageReceived}get name(){return this._name}get model(){return{name:this._name}}get isDisposed(){return this._isDisposed}dispose(){this._isDisposed||(this._isDisposed=!0,this._disposed.emit(),this._updateConnectionStatus("disconnected"),this._clearSocket(),r.Signal.clearData(this))}send(e){this._sendMessage(e)}_sendMessage(e,t=!0){if(!this._isDisposed&&e.content)if("connected"===this.connectionStatus&&this._ws){const t=[e.type,...e.content];this._ws.send(JSON.stringify(t))}else{if(!t)throw new Error(`Could not send message: ${JSON.stringify(e)}`);this._pendingMessages.push(e)}}_sendPending(){for(;"connected"===this.connectionStatus&&this._pendingMessages.length>0;)this._sendMessage(this._pendingMessages[0],!1),this._pendingMessages.shift()}reconnect(){this._errorIfDisposed();const e=new s.PromiseDelegate,t=(n,i)=>{"connected"===i?(e.resolve(),this.connectionStatusChanged.disconnect(t,this)):"disconnected"===i&&(e.reject(new Error("Terminal connection disconnected")),this.connectionStatusChanged.disconnect(t,this))};return 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this.ready.then((()=>this._storage))}get counters(){return this.ready.then((()=>this._counters))}get checkpoints(){return this.ready.then((()=>this._checkpoints))}get defaultStorageOptions(){const e=this._storageDrivers&&this._storageDrivers.length?this._storageDrivers:null;return{version:1,name:this._storageName,...e?{driver:e}:{}}}createDefaultStorage(){return this._localforage.createInstance({description:"Offline Storage for Notebooks and Files",storeName:"files",...this.defaultStorageOptions})}createDefaultCounters(){return this._localforage.createInstance({description:"Store the current file suffix counters",storeName:"counters",...this.defaultStorageOptions})}createDefaultCheckpoints(){return this._localforage.createInstance({description:"Offline Storage for Checkpoints",storeName:"checkpoints",...this.defaultStorageOptions})}async newUntitled(e){var t,n,r;const o=null!==(t=null==e?void 0:e.path)&&void 0!==t?t:"",a=null!==(n=null==e?void 0:e.type)&&void 0!==n?n:"notebook",c=(new Date).toISOString();let u=i.PathExt.dirname(o);const d=i.PathExt.basename(o),h=i.PathExt.extname(o),p=await this.get(u);let f,m="";switch(o&&!h&&p?(u=`${o}/`,m=""):u&&d?(u=`${u}/`,m=d):(u="",m=o),a){case"directory":m=`Untitled Folder${await this._incrementCounter("directory")||""}`,f={name:m,path:`${u}${m}`,last_modified:c,created:c,format:"json",mimetype:"",content:null,size:0,writable:!0,type:"directory"};break;case"notebook":{const e=await this._incrementCounter("notebook");m=m||`Untitled${e||""}.ipynb`,f={name:m,path:`${u}${m}`,last_modified:c,created:c,format:"json",mimetype:s.vJ.JSON,content:l.EMPTY_NB,size:JSON.stringify(l.EMPTY_NB).length,writable:!0,type:"notebook"};break}default:{const t=null!==(r=null==e?void 0:e.ext)&&void 0!==r?r:".txt",n=await this._incrementCounter("file"),i=s.HB.getType(t)||s.vJ.OCTET_STREAM;let o;o=s.HB.hasFormat(t,"text")||-1!==i.indexOf("text")?"text":-1!==t.indexOf("json")||-1!==t.indexOf("ipynb")?"json":"base64",m=m||`untitled${n||""}${t}`,f={name:m,path:`${u}${m}`,last_modified:c,created:c,format:o,mimetype:i,content:"",size:0,writable:!0,type:"file"};break}}const g=f.path;return await(await this.storage).setItem(g,f),f}async copy(e,t){let n=i.PathExt.basename(e);for(t=""===t?"":`${t.slice(1)}/`;await this.get(`${t}${n}`,{content:!0});){const e=i.PathExt.extname(n),t=n.replace(e,"");n=`${t} (copy)${e}`}const s=`${t}${n}`;let r=await this.get(e,{content:!0});if(!r)throw Error(`Could not find file with path ${e}`);return r={...r,name:n,path:s},await(await this.storage).setItem(s,r),r}async get(e,t){if(""===(e=decodeURIComponent(e.replace(/^\//,""))))return await this._getFolder(e);const n=await this.storage,r=await n.getItem(e),o=await this._getServerContents(e,t),a=r||o;if(!a)return null;if(!(null==t?void 0:t.content))return{size:0,...a,content:null};if("directory"===a.type){const t=new Map;await n.iterate(((n,i)=>{i===`${e}/${n.name}`&&t.set(n.name,n)}));const r=o?o.content:Array.from((await this._getServerDirectory(e)).values());for(const e of r)t.has(e.name)||t.set(e.name,e);const l=[...t.values()];return{name:i.PathExt.basename(e),path:e,last_modified:a.last_modified,created:a.created,format:"json",mimetype:s.vJ.JSON,content:l,size:0,writable:!0,type:"directory"}}return a}async rename(e,t){const n=decodeURIComponent(e),s=await this.get(n,{content:!0});if(!s)throw Error(`Could not find file with path ${n}`);const r=(new Date).toISOString(),o=i.PathExt.basename(t),a={...s,name:o,path:t,last_modified:r},l=await this.storage;if(await l.setItem(t,a),await l.removeItem(n),await(await this.checkpoints).removeItem(n),"directory"===s.type){let n;for(n of s.content)await this.rename(i.URLExt.join(e,n.name),i.URLExt.join(t,n.name))}return a}async save(e,t={}){var n;e=decodeURIComponent(e);const r=i.PathExt.extname(null!==(n=t.name)&&void 0!==n?n:""),o=t.chunk,a=!!o&&(o>1||-1===o);let l=await this.get(e,{content:a});if(l||(l=await this.newUntitled({path:e,ext:r,type:"file"})),!l)return null;const c=l.content,u=(new Date).toISOString();if(l={...l,...t,last_modified:u},t.content&&"base64"===t.format){const e=!o||-1===o;if(".ipynb"===r){const n=this._handleChunk(t.content,c,a);l={...l,content:e?JSON.parse(n):n,format:"json",type:"notebook",size:n.length}}else if(s.HB.hasFormat(r,"json")){const n=this._handleChunk(t.content,c,a);l={...l,content:e?JSON.parse(n):n,format:"json",type:"file",size:n.length}}else if(s.HB.hasFormat(r,"text")){const e=this._handleChunk(t.content,c,a);l={...l,content:e,format:"text",type:"file",size:e.length}}else{const e=t.content;l={...l,content:e,size:atob(e).length}}}return await(await this.storage).setItem(e,l),l}async delete(e){const t=`${e=decodeURIComponent(e)}/`,n=(await(await this.storage).keys()).filter((n=>n===e||n.startsWith(t)));await Promise.all(n.map(this.forgetPath,this))}async forgetPath(e){await Promise.all([(await this.storage).removeItem(e),(await this.checkpoints).removeItem(e)])}async createCheckpoint(e){var t;const n=await this.checkpoints;e=decodeURIComponent(e);const i=await this.get(e,{content:!0});if(!i)throw Error(`Could not find file with path ${e}`);const s=(null!==(t=await n.getItem(e))&&void 0!==t?t:[]).filter(Boolean);return s.push(i),s.length>5&&s.splice(0,s.length-5),await n.setItem(e,s),{id:""+(s.length-1),last_modified:i.last_modified}}async listCheckpoints(e){return(await(await this.checkpoints).getItem(e)||[]).filter(Boolean).map(this.normalizeCheckpoint,this)}normalizeCheckpoint(e,t){return{id:t.toString(),last_modified:e.last_modified}}async restoreCheckpoint(e,t){e=decodeURIComponent(e);const n=(await(await this.checkpoints).getItem(e)||[])[parseInt(t)];await(await this.storage).setItem(e,n)}async deleteCheckpoint(e,t){e=decodeURIComponent(e);const n=await(await this.checkpoints).getItem(e)||[],i=parseInt(t);n.splice(i,1),await(await this.checkpoints).setItem(e,n)}_handleChunk(e,t,n){const i=decodeURIComponent(escape(atob(e)));return n?t+i:i}async _getFolder(e){const t=new Map,n=await this.storage;await n.iterate(((e,n)=>{n.includes("/")||t.set(e.path,e)}));for(const n of(await this._getServerDirectory(e)).values())t.has(n.path)||t.set(n.path,n);return e&&0===t.size?null:{name:"",path:e,last_modified:new Date(0).toISOString(),created:new Date(0).toISOString(),format:"json",mimetype:s.vJ.JSON,content:Array.from(t.values()),size:0,writable:!0,type:"directory"}}async _getServerContents(e,t){const n=i.PathExt.basename(e);let r=(await this._getServerDirectory(i.URLExt.join(e,".."))).get(n);if(!r)return null;if(r=r||{name:n,path:e,last_modified:new Date(0).toISOString(),created:new Date(0).toISOString(),format:"text",mimetype:s.vJ.PLAIN_TEXT,type:"file",writable:!0,size:0,content:""},null==t?void 0:t.content)if("directory"===r.type){const t=await this._getServerDirectory(e);r={...r,content:Array.from(t.values())}}else{const t=i.URLExt.join(i.PageConfig.getBaseUrl(),"files",e),o=await fetch(t);if(!o.ok)return null;const a=r.mimetype||o.headers.get("Content-Type"),l=i.PathExt.extname(n);if("notebook"===r.type||s.HB.hasFormat(l,"json")||-1!==(null==a?void 0:a.indexOf("json"))||e.match(/\.(ipynb|[^/]*json[^/]*)$/)){const e=await o.text();r={...r,content:JSON.parse(e),format:"json",mimetype:r.mimetype||s.vJ.JSON,size:e.length}}else if(s.HB.hasFormat(l,"text")||-1!==a.indexOf("text")){const e=await o.text();r={...r,content:e,format:"text",mimetype:a||s.vJ.PLAIN_TEXT,size:e.length}}else{const e=await o.arrayBuffer(),t=new Uint8Array(e);r={...r,content:btoa(t.reduce(this.reduceBytesToString,"")),format:"base64",mimetype:a||s.vJ.OCTET_STREAM,size:t.length}}}return r}async _getServerDirectory(e){const t=this._serverContents.get(e)||new Map;if(!this._serverContents.has(e)){const n=i.URLExt.join(i.PageConfig.getBaseUrl(),"api/contents",e,"all.json");try{const e=await fetch(n),i=JSON.parse(await e.text());for(const e of i.content)t.set(e.name,e)}catch(e){console.warn(`don't worry, about ${e}... nothing's broken. If there had been a\n file at ${n}, you might see some more files.`)}this._serverContents.set(e,t)}return t}async _incrementCounter(e){var t;const n=await this.counters,i=(null!==(t=await n.getItem(e))&&void 0!==t?t:-1)+1;return await n.setItem(e,i),i}}var l;!function(e){e.EMPTY_NB={metadata:{orig_nbformat:4},nbformat_minor:4,nbformat:4,cells:[]}}(l||(l={}));const c=16895;new TextEncoder,new TextDecoder("utf-8");class u{constructor(e){this.isDisposed=!1,this._onMessage=async e=>{if(!this._channel)return;const{_contents:t}=this,n=e.data,s=null==n?void 0:n.path;if("broadcast.ts"!==(null==n?void 0:n.receiver))return;let r,o=null;switch(null==n?void 0:n.method){case"readdir":r=await t.get(s,{content:!0}),o=[],"directory"===r.type&&r.content&&(o=r.content.map((e=>e.name)));break;case"rmdir":await t.delete(s);break;case"rename":await t.rename(s,n.data.newPath);break;case"getmode":r=await t.get(s),o="directory"===r.type?c:33206;break;case"lookup":try{r=await t.get(s),o={ok:!0,mode:"directory"===r.type?c:33206}}catch(e){o={ok:!1}}break;case"mknod":r=await t.newUntitled({path:i.PathExt.dirname(s),type:Number.parseInt(n.data.mode)===c?"directory":"file",ext:i.PathExt.extname(s)}),await t.rename(r.path,s);break;case"getattr":{r=await t.get(s);const e=new Date(0).toISOString();o={dev:1,nlink:1,uid:0,gid:0,rdev:0,size:r.size||0,blksize:4096,blocks:Math.ceil(r.size||0),atime:r.last_modified||e,mtime:r.last_modified||e,ctime:r.created||e,timestamp:0};break}case"get":if(r=await t.get(s,{content:!0}),"directory"===r.type)break;o={content:"json"===r.format?JSON.stringify(r.content):r.content,format:r.format};break;case"put":await t.save(s,{content:"json"===n.data.format?JSON.parse(n.data.data):n.data.data,type:"file",format:n.data.format});break;default:o=null}this._channel.postMessage(o)},this._channel=null,this._enabled=!1,this._contents=e.contents}get enabled(){return this._enabled}enable(){this._channel?console.warn("BroadcastChannel already created and enabled"):(this._channel=new BroadcastChannel("/api/drive.v1"),this._channel.addEventListener("message",this._onMessage),this._enabled=!0)}disable(){this._channel&&(this._channel.removeEventListener("message",this._onMessage),this._channel=null),this._enabled=!1}dispose(){this.isDisposed||(this.disable(),this.isDisposed=!0)}}var d,h=n(9842),p=n(4016);class f{constructor(e={}){if(this._map=new Map,this._changed=new p.Signal(this),this._isDisposed=!1,this._itemCmp=e.itemCmp||d.itemCmp,e.values)for(const t in e.values)this._map.set(t,e.values[t])}get type(){return"Map"}get changed(){return this._changed}get isDisposed(){return this._isDisposed}get size(){return this._map.size}set(e,t){const n=this._map.get(e);if(void 0===t)throw Error("Cannot set an undefined value, use remove");const i=this._itemCmp;return void 0!==n&&i(n,t)||(this._map.set(e,t),this._changed.emit({type:n?"change":"add",key:e,oldValue:n,newValue:t})),n}get(e){return this._map.get(e)}has(e){return this._map.has(e)}keys(){const e=[];return this._map.forEach(((t,n)=>{e.push(n)})),e}values(){const e=[];return this._map.forEach(((t,n)=>{e.push(t)})),e}delete(e){const t=this._map.get(e);return this._map.delete(e)&&this._changed.emit({type:"remove",key:e,oldValue:t,newValue:void 0}),t}clear(){const e=this.keys();for(let t=0;tthis._queue.push({resolve:e,reject:t})));return e||this._dispatch(),t}runExclusive(e){return y(this,void 0,void 0,(function*(){const[t,n]=yield this.acquire();try{return yield e(t)}finally{n()}}))}waitForUnlock(){return y(this,void 0,void 0,(function*(){return this.isLocked()?new Promise((e=>this._waiters.push({resolve:e}))):Promise.resolve()}))}isLocked(){return this._value<=0}release(){if(this._maxConcurrency>1)throw new Error("this method is unavailable on semaphores with concurrency > 1; use the scoped release returned by acquire instead");if(this._currentReleaser){const e=this._currentReleaser;this._currentReleaser=void 0,e()}}cancel(){this._queue.forEach((e=>e.reject(this._cancelError))),this._queue=[]}_dispatch(){const e=this._queue.shift();if(!e)return;let t=!1;this._currentReleaser=()=>{t||(t=!0,this._value++,this._resolveWaiters(),this._dispatch())},e.resolve([this._value--,this._currentReleaser])}_resolveWaiters(){this._waiters.forEach((e=>e.resolve())),this._waiters=[]}}class w{constructor(e){this._semaphore=new b(1,e)}acquire(){return e=this,t=void 0,i=function*(){const[,e]=yield this._semaphore.acquire();return e},new((n=void 0)||(n=Promise))((function(s,r){function o(e){try{l(i.next(e))}catch(e){r(e)}}function a(e){try{l(i.throw(e))}catch(e){r(e)}}function l(e){var t;e.done?s(e.value):(t=e.value,t instanceof n?t:new n((function(e){e(t)}))).then(o,a)}l((i=i.apply(e,t||[])).next())}));var e,t,n,i}runExclusive(e){return this._semaphore.runExclusive((()=>e()))}isLocked(){return this._semaphore.isLocked()}waitForUnlock(){return this._semaphore.waitForUnlock()}release(){this._semaphore.release()}cancel(){return this._semaphore.cancel()}}const D=g.supportedKernelWebSocketProtocols.v1KernelWebsocketJupyterOrg;class x{constructor(e){this._kernels=new f,this._clients=new f,this._kernelClients=new f;const{kernelspecs:t}=e;this._kernelspecs=t}async startNew(e){const{id:t,name:n,location:i}=e,s=this._kernelspecs.factories.get(n);if(!s)return{id:t,name:n};const o=new w,a=(e,t,n)=>{var i;const s=this._kernels.get(e);if(!s)throw Error(`No kernel ${e}`);this._clients.set(t,n),null===(i=this._kernelClients.get(e))||void 0===i||i.add(t),n.on("message",(async e=>{let t;if(e instanceof ArrayBuffer)e=new Uint8Array(e).buffer,t=(0,m.deserialize)(e,D);else{if("string"!=typeof e)return;{const n=(new TextEncoder).encode(e);t=(0,m.deserialize)(n.buffer,D)}}"input_reply"===t.header.msg_type?s.handleMessage(t):(async e=>{await o.runExclusive((async()=>{await s.ready,await s.handleMessage(e)}))})(t)}));const r=()=>{var n;this._clients.delete(t),null===(n=this._kernelClients.get(e))||void 0===n||n.delete(t)};s.disposed.connect(r),n.onclose=r},l=null!=t?t:r.UUID.uuid4(),c=`${x.WS_BASE_URL}api/kernels/${l}/channels`,u=this._kernels.get(l);if(u)return{id:u.id,name:u.name};const d=await s({id:l,sendMessage:e=>{const t=e.header.session,n=this._clients.get(t);if(!n)return void console.warn(`Trying to send message on removed socket for kernel ${l}`);const i=(0,m.serialize)(e,D);if("iopub"!==e.channel)n.send(i);else{const e=this._kernelClients.get(l);null==e||e.forEach((e=>{var t;null===(t=this._clients.get(e))||void 0===t||t.send(i)}))}},name:n,location:i});this._kernels.set(l,d),this._kernelClients.set(l,new Set);const h=new v.Server(c,{mock:!1,selectProtocol:()=>D});return h.on("connection",(e=>{var t;const n=null!==(t=new URL(e.url).searchParams.get("session_id"))&&void 0!==t?t:"";a(l,n,e)})),h.on("close",(()=>{this._clients.keys().forEach((e=>{var t;const n=this._clients.get(e);(null==n?void 0:n.readyState)===WebSocket.CLOSED&&(this._clients.delete(e),null===(t=this._kernelClients.get(l))||void 0===t||t.delete(e))}))})),d.disposed.connect((()=>{h.close(),this._kernels.delete(l),this._kernelClients.delete(l)})),{id:d.id,name:d.name}}async restart(e){const t=this._kernels.get(e);if(!t)throw Error(`Kernel ${e} does not exist`);const{id:n,name:i,location:s}=t;return t.dispose(),this.startNew({id:n,name:i,location:s})}async list(){return[...this._kernels.values()].map((e=>({id:e.id,name:e.name})))}async shutdown(e){var t;null===(t=this._kernels.delete(e))||void 0===t||t.dispose()}async get(e){return this._kernels.get(e)}}!function(e){e.WS_BASE_URL=i.PageConfig.getBaseUrl().replace(/^http/,"ws")}(x||(x={}));class C{constructor(){this._specs=new Map,this._factories=new Map}get specs(){return 0===this._specs.size?null:{default:this.defaultKernelName,kernelspecs:Object.fromEntries(this._specs)}}get defaultKernelName(){let e=i.PageConfig.getOption("defaultKernelName");if(!e&&this._specs.size){const t=Array.from(this._specs.keys());t.sort(),e=t[0]}return e||h.vM}get factories(){return this._factories}register(e){const{spec:t,create:n}=e;this._specs.set(t.name,t),this._factories.set(t.name,n)}}const E="third-party-licenses.json",S=new r.Token("@jupyterlite/licenses:ILicenses"),A=Object.freeze({packages:[]});class k{async get(){return{bundles:{...await this._getFederated(),[this.appName]:await this._getAppLicenses()}}}get appName(){return i.PageConfig.getOption("appName")||"JupyterLite"}get appLicensesUrl(){return i.URLExt.join(i.PageConfig.getBaseUrl(),"build",E)}get labExtensionsUrl(){return i.PageConfig.getOption("fullLabextensionsUrl")}async _getAppLicenses(){let e=A;try{e=(await fetch(this.appLicensesUrl)).json()}catch(e){console.warn("Could not resolve licenses for",this.appName)}return e}async _getFederated(){const e={};let 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s(e,t,n){if(t===n)return;let s;for(s in t)s in i||s in n||("on"===s.substr(0,2)?e[s]=null:e.removeAttribute(s));for(s in n)s in i||t[s]===n[s]||("on"===s.substr(0,2)?e[s]=n[s]:e.setAttribute(s,n[s]));t.className!==n.className&&(void 0!==n.className?e.setAttribute("class",n.className):e.removeAttribute("class")),t.htmlFor!==n.htmlFor&&(void 0!==n.htmlFor?e.setAttribute("for",n.htmlFor):e.removeAttribute("for")),t.dataset!==n.dataset&&function(e,t,n){for(let i in t)i in n||e.removeAttribute(`data-${i}`);for(let i in n)t[i]!==n[i]&&e.setAttribute(`data-${i}`,n[i])}(e,t.dataset||{},n.dataset||{}),t.style!==n.style&&function(e,t,n){let i,s=e.style;for(i in t)i in n||(s[i]="");for(i in n)t[i]!==n[i]&&(s[i]=n[i])}(e,t.style||{},n.style||{})}}(ne||(ne={}));class de{constructor(){this.sizeHint=0,this.minSize=0,this.maxSize=1/0,this.stretch=1,this.size=0,this.done=!1}}!function(e){e.calc=function(e,t){let n=e.length;if(0===n)return t;let i=0,s=0,r=0,o=0,a=0;for(let t=0;t0&&(o+=n.stretch,a++)}if(t===r)return 0;if(t<=i){for(let t=0;t=s){for(let t=0;t0&&i>l;){let t=i,s=o;for(let r=0;r0&&i>l;){let t=i/c;for(let s=0;s0&&i>l;){let t=i,s=o;for(let r=0;r=n.maxSize?(i-=n.maxSize-n.size,o-=n.stretch,n.size=n.maxSize,n.done=!0,c--,a--):(i-=l,n.size+=l)}}for(;c>0&&i>l;){let t=i/c;for(let s=0;s=n.maxSize?(i-=n.maxSize-n.size,n.size=n.maxSize,n.done=!0,c--):(i-=t,n.size+=t))}}}return 0},e.adjust=function(e,t,n){0!==e.length&&0!==n&&(n>0?function(e,t,n){let i=0;for(let n=0;n<=t;++n){let t=e[n];i+=t.maxSize-t.size}let s=0;for(let n=t+1,i=e.length;n=0&&r>0;--n){let t=e[n],i=t.maxSize-t.size;i>=r?(t.sizeHint=t.size+r,r=0):(t.sizeHint=t.size+i,r-=i)}let o=n;for(let n=t+1,i=e.length;n0;++n){let t=e[n],i=t.size-t.minSize;i>=o?(t.sizeHint=t.size-o,o=0):(t.sizeHint=t.size-i,o-=i)}}(e,t,n):function(e,t,n){let i=0;for(let n=t+1,s=e.length;n0;++n){let t=e[n],i=t.maxSize-t.size;i>=r?(t.sizeHint=t.size+r,r=0):(t.sizeHint=t.size+i,r-=i)}let o=n;for(let n=t;n>=0&&o>0;--n){let t=e[n],i=t.size-t.minSize;i>=o?(t.sizeHint=t.size-o,o=0):(t.sizeHint=t.size-i,o-=i)}}(e,t,-n))}}(ie||(ie={}));class he{constructor(e){this._label="",this._caption="",this._mnemonic=-1,this._icon=void 0,this._iconClass="",this._iconLabel="",this._className="",this._closable=!1,this._changed=new H(this),this._isDisposed=!1,this.owner=e.owner,void 0!==e.label&&(this._label=e.label),void 0!==e.mnemonic&&(this._mnemonic=e.mnemonic),void 0!==e.icon&&(this._icon=e.icon),void 0!==e.iconClass&&(this._iconClass=e.iconClass),void 0!==e.iconLabel&&(this._iconLabel=e.iconLabel),void 0!==e.caption&&(this._caption=e.caption),void 0!==e.className&&(this._className=e.className),void 0!==e.closable&&(this._closable=e.closable),this._dataset=e.dataset||{}}get changed(){return this._changed}get label(){return this._label}set label(e){this._label!==e&&(this._label=e,this._changed.emit(void 0))}get mnemonic(){return this._mnemonic}set mnemonic(e){this._mnemonic!==e&&(this._mnemonic=e,this._changed.emit(void 0))}get icon(){return this._icon}set icon(e){this._icon!==e&&(this._icon=e,this._changed.emit(void 0))}get iconClass(){return this._iconClass}set iconClass(e){this._iconClass!==e&&(this._iconClass=e,this._changed.emit(void 0))}get iconLabel(){return this._iconLabel}set iconLabel(e){this._iconLabel!==e&&(this._iconLabel=e,this._changed.emit(void 0))}get caption(){return this._caption}set caption(e){this._caption!==e&&(this._caption=e,this._changed.emit(void 0))}get className(){return this._className}set className(e){this._className!==e&&(this._className=e,this._changed.emit(void 0))}get closable(){return this._closable}set closable(e){this._closable!==e&&(this._closable=e,this._changed.emit(void 0))}get dataset(){return this._dataset}set dataset(e){this._dataset!==e&&(this._dataset=e,this._changed.emit(void 0))}get isDisposed(){return this._isDisposed}dispose(){this.isDisposed||(this._isDisposed=!0,H.clearData(this))}}class pe{constructor(e={}){this._flags=0,this._layout=null,this._parent=null,this._disposed=new H(this),this._hiddenMode=pe.HiddenMode.Display,this.node=se.createNode(e),this.addClass("lm-Widget")}dispose(){this.isDisposed||(this.setFlag(pe.Flag.IsDisposed),this._disposed.emit(void 0),this.parent?this.parent=null:this.isAttached&&pe.detach(this),this._layout&&(this._layout.dispose(),this._layout=null),this.title.dispose(),H.clearData(this),B.clearData(this),W.clearData(this))}get disposed(){return this._disposed}get isDisposed(){return this.testFlag(pe.Flag.IsDisposed)}get isAttached(){return this.testFlag(pe.Flag.IsAttached)}get isHidden(){return this.testFlag(pe.Flag.IsHidden)}get isVisible(){return this.testFlag(pe.Flag.IsVisible)}get title(){return se.titleProperty.get(this)}get id(){return this.node.id}set id(e){this.node.id=e}get dataset(){return this.node.dataset}get hiddenMode(){return this._hiddenMode}set hiddenMode(e){this._hiddenMode!==e&&(this.isHidden&&this._toggleHidden(!1),e==pe.HiddenMode.Scale?this.node.style.willChange="transform":this.node.style.willChange="auto",this._hiddenMode=e,this.isHidden&&this._toggleHidden(!0))}get parent(){return this._parent}set parent(e){if(this._parent!==e){if(e&&this.contains(e))throw new Error("Invalid parent widget.");if(this._parent&&!this._parent.isDisposed){let e=new pe.ChildMessage("child-removed",this);B.sendMessage(this._parent,e)}if(this._parent=e,this._parent&&!this._parent.isDisposed){let e=new pe.ChildMessage("child-added",this);B.sendMessage(this._parent,e)}this.isDisposed||B.sendMessage(this,pe.Msg.ParentChanged)}}get layout(){return this._layout}set layout(e){if(this._layout!==e){if(this.testFlag(pe.Flag.DisallowLayout))throw new Error("Cannot set widget layout.");if(this._layout)throw new Error("Cannot change widget layout.");if(e.parent)throw new Error("Cannot change layout parent.");this._layout=e,e.parent=this}}*children(){this._layout&&(yield*this._layout)}contains(e){for(let t=e;t;t=t._parent)if(t===this)return!0;return!1}hasClass(e){return this.node.classList.contains(e)}addClass(e){this.node.classList.add(e)}removeClass(e){this.node.classList.remove(e)}toggleClass(e,t){return!0===t?(this.node.classList.add(e),!0):!1===t?(this.node.classList.remove(e),!1):this.node.classList.toggle(e)}update(){B.postMessage(this,pe.Msg.UpdateRequest)}fit(){B.postMessage(this,pe.Msg.FitRequest)}activate(){B.postMessage(this,pe.Msg.ActivateRequest)}close(){B.sendMessage(this,pe.Msg.CloseRequest)}show(){if(this.testFlag(pe.Flag.IsHidden)&&(!this.isAttached||this.parent&&!this.parent.isVisible||B.sendMessage(this,pe.Msg.BeforeShow),this.clearFlag(pe.Flag.IsHidden),this._toggleHidden(!1),!this.isAttached||this.parent&&!this.parent.isVisible||B.sendMessage(this,pe.Msg.AfterShow),this.parent)){let e=new pe.ChildMessage("child-shown",this);B.sendMessage(this.parent,e)}}hide(){if(!this.testFlag(pe.Flag.IsHidden)&&(!this.isAttached||this.parent&&!this.parent.isVisible||B.sendMessage(this,pe.Msg.BeforeHide),this.setFlag(pe.Flag.IsHidden),this._toggleHidden(!0),!this.isAttached||this.parent&&!this.parent.isVisible||B.sendMessage(this,pe.Msg.AfterHide),this.parent)){let e=new pe.ChildMessage("child-hidden",this);B.sendMessage(this.parent,e)}}setHidden(e){e?this.hide():this.show()}testFlag(e){return 0!=(this._flags&e)}setFlag(e){this._flags|=e}clearFlag(e){this._flags&=~e}processMessage(e){switch(e.type){case"resize":this.notifyLayout(e),this.onResize(e);break;case"update-request":this.notifyLayout(e),this.onUpdateRequest(e);break;case"fit-request":this.notifyLayout(e),this.onFitRequest(e);break;case"before-show":this.notifyLayout(e),this.onBeforeShow(e);break;case"after-show":this.setFlag(pe.Flag.IsVisible),this.notifyLayout(e),this.onAfterShow(e);break;case"before-hide":this.notifyLayout(e),this.onBeforeHide(e);break;case"after-hide":this.clearFlag(pe.Flag.IsVisible),this.notifyLayout(e),this.onAfterHide(e);break;case"before-attach":this.notifyLayout(e),this.onBeforeAttach(e);break;case"after-attach":this.isHidden||this.parent&&!this.parent.isVisible||this.setFlag(pe.Flag.IsVisible),this.setFlag(pe.Flag.IsAttached),this.notifyLayout(e),this.onAfterAttach(e);break;case"before-detach":this.notifyLayout(e),this.onBeforeDetach(e);break;case"after-detach":this.clearFlag(pe.Flag.IsVisible),this.clearFlag(pe.Flag.IsAttached),this.notifyLayout(e),this.onAfterDetach(e);break;case"activate-request":this.notifyLayout(e),this.onActivateRequest(e);break;case"close-request":this.notifyLayout(e),this.onCloseRequest(e);break;case"child-added":this.notifyLayout(e),this.onChildAdded(e);break;case"child-removed":this.notifyLayout(e),this.onChildRemoved(e);break;default:this.notifyLayout(e)}}notifyLayout(e){this._layout&&this._layout.processParentMessage(e)}onCloseRequest(e){this.parent?this.parent=null:this.isAttached&&pe.detach(this)}onResize(e){}onUpdateRequest(e){}onFitRequest(e){}onActivateRequest(e){}onBeforeShow(e){}onAfterShow(e){}onBeforeHide(e){}onAfterHide(e){}onBeforeAttach(e){}onAfterAttach(e){}onBeforeDetach(e){}onAfterDetach(e){}onChildAdded(e){}onChildRemoved(e){}_toggleHidden(e){if(e)switch(this._hiddenMode){case pe.HiddenMode.Display:this.addClass("lm-mod-hidden");break;case pe.HiddenMode.Scale:this.node.style.transform="scale(0)",this.node.setAttribute("aria-hidden","true");break;case pe.HiddenMode.ContentVisibility:this.node.style.contentVisibility="hidden",this.node.style.zIndex="-1"}else switch(this._hiddenMode){case pe.HiddenMode.Display:this.removeClass("lm-mod-hidden");break;case pe.HiddenMode.Scale:this.node.style.transform="",this.node.removeAttribute("aria-hidden");break;case pe.HiddenMode.ContentVisibility:this.node.style.contentVisibility="",this.node.style.zIndex=""}}}!function(e){var t,n,i;(t=e.HiddenMode||(e.HiddenMode={}))[t.Display=0]="Display",t[t.Scale=1]="Scale",t[t.ContentVisibility=2]="ContentVisibility",(n=e.Flag||(e.Flag={}))[n.IsDisposed=1]="IsDisposed",n[n.IsAttached=2]="IsAttached",n[n.IsHidden=4]="IsHidden",n[n.IsVisible=8]="IsVisible",n[n.DisallowLayout=16]="DisallowLayout",(i=e.Msg||(e.Msg={})).BeforeShow=new U("before-show"),i.AfterShow=new U("after-show"),i.BeforeHide=new U("before-hide"),i.AfterHide=new U("after-hide"),i.BeforeAttach=new U("before-attach"),i.AfterAttach=new U("after-attach"),i.BeforeDetach=new U("before-detach"),i.AfterDetach=new U("after-detach"),i.ParentChanged=new U("parent-changed"),i.UpdateRequest=new q("update-request"),i.FitRequest=new q("fit-request"),i.ActivateRequest=new q("activate-request"),i.CloseRequest=new q("close-request"),e.ChildMessage=class extends U{constructor(e,t){super(e),this.child=t}};class s extends U{constructor(e,t){super("resize"),this.width=e,this.height=t}}e.ResizeMessage=s,function(e){e.UnknownSize=new e(-1,-1)}(s=e.ResizeMessage||(e.ResizeMessage={})),e.attach=function(t,n,i=null){if(t.parent)throw new Error("Cannot attach a child widget.");if(t.isAttached||t.node.isConnected)throw new Error("Widget is already attached.");if(!n.isConnected)throw new Error("Host is not attached.");B.sendMessage(t,e.Msg.BeforeAttach),n.insertBefore(t.node,i),B.sendMessage(t,e.Msg.AfterAttach)},e.detach=function(t){if(t.parent)throw new Error("Cannot detach a child widget.");if(!t.isAttached||!t.node.isConnected)throw new Error("Widget is not attached.");B.sendMessage(t,e.Msg.BeforeDetach),t.node.parentNode.removeChild(t.node),B.sendMessage(t,e.Msg.AfterDetach)}}(pe||(pe={})),function(e){e.titleProperty=new W({name:"title",create:e=>new he({owner:e})}),e.createNode=function(e){return e.node||document.createElement(e.tag||"div")}}(se||(se={}));class fe{constructor(e={}){this._disposed=!1,this._parent=null,this._fitPolicy=e.fitPolicy||"set-min-size"}dispose(){this._parent=null,this._disposed=!0,H.clearData(this),W.clearData(this)}get isDisposed(){return this._disposed}get parent(){return this._parent}set parent(e){if(this._parent!==e){if(this._parent)throw new Error("Cannot change parent widget.");if(e.layout!==this)throw new Error("Invalid parent widget.");this._parent=e,this.init()}}get fitPolicy(){return this._fitPolicy}set fitPolicy(e){if(this._fitPolicy!==e&&(this._fitPolicy=e,this._parent)){let e=this._parent.node.style;e.minWidth="",e.minHeight="",e.maxWidth="",e.maxHeight="",this._parent.fit()}}processParentMessage(e){switch(e.type){case"resize":this.onResize(e);break;case"update-request":this.onUpdateRequest(e);break;case"fit-request":this.onFitRequest(e);break;case"before-show":this.onBeforeShow(e);break;case"after-show":this.onAfterShow(e);break;case"before-hide":this.onBeforeHide(e);break;case"after-hide":this.onAfterHide(e);break;case"before-attach":this.onBeforeAttach(e);break;case"after-attach":this.onAfterAttach(e);break;case"before-detach":this.onBeforeDetach(e);break;case"after-detach":this.onAfterDetach(e);break;case"child-removed":this.onChildRemoved(e);break;case"child-shown":this.onChildShown(e);break;case"child-hidden":this.onChildHidden(e)}}init(){for(const e of this)e.parent=this.parent}onResize(e){for(const e of this)B.sendMessage(e,pe.ResizeMessage.UnknownSize)}onUpdateRequest(e){for(const e of this)B.sendMessage(e,pe.ResizeMessage.UnknownSize)}onBeforeAttach(e){for(const t of this)B.sendMessage(t,e)}onAfterAttach(e){for(const t of this)B.sendMessage(t,e)}onBeforeDetach(e){for(const t of this)B.sendMessage(t,e)}onAfterDetach(e){for(const t of this)B.sendMessage(t,e)}onBeforeShow(e){for(const t of this)t.isHidden||B.sendMessage(t,e)}onAfterShow(e){for(const t of this)t.isHidden||B.sendMessage(t,e)}onBeforeHide(e){for(const t of this)t.isHidden||B.sendMessage(t,e)}onAfterHide(e){for(const t of this)t.isHidden||B.sendMessage(t,e)}onChildRemoved(e){this.removeWidget(e.child)}onFitRequest(e){}onChildShown(e){}onChildHidden(e){}}!function(e){e.getHorizontalAlignment=function(e){return re.horizontalAlignmentProperty.get(e)},e.setHorizontalAlignment=function(e,t){re.horizontalAlignmentProperty.set(e,t)},e.getVerticalAlignment=function(e){return re.verticalAlignmentProperty.get(e)},e.setVerticalAlignment=function(e,t){re.verticalAlignmentProperty.set(e,t)}}(fe||(fe={}));class me{constructor(e){this._top=NaN,this._left=NaN,this._width=NaN,this._height=NaN,this._minWidth=0,this._minHeight=0,this._maxWidth=1/0,this._maxHeight=1/0,this._disposed=!1,this.widget=e,this.widget.node.style.position="absolute",this.widget.node.style.contain="strict"}dispose(){if(this._disposed)return;this._disposed=!0;let e=this.widget.node.style;e.position="",e.top="",e.left="",e.width="",e.height="",e.contain=""}get minWidth(){return this._minWidth}get minHeight(){return this._minHeight}get maxWidth(){return this._maxWidth}get maxHeight(){return this._maxHeight}get isDisposed(){return this._disposed}get isHidden(){return this.widget.isHidden}get isVisible(){return this.widget.isVisible}get isAttached(){return this.widget.isAttached}fit(){let e=M.sizeLimits(this.widget.node);this._minWidth=e.minWidth,this._minHeight=e.minHeight,this._maxWidth=e.maxWidth,this._maxHeight=e.maxHeight}update(e,t,n,i){let s=Math.max(this._minWidth,Math.min(n,this._maxWidth)),r=Math.max(this._minHeight,Math.min(i,this._maxHeight));if(s"center",changed:t}),e.verticalAlignmentProperty=new W({name:"verticalAlignment",create:()=>"top",changed:t})}(re||(re={}));class ge extends fe{constructor(){super(...arguments),this._widgets=[]}dispose(){for(;this._widgets.length>0;)this._widgets.pop().dispose();super.dispose()}get widgets(){return this._widgets}*[Symbol.iterator](){yield*this._widgets}addWidget(e){this.insertWidget(this._widgets.length,e)}insertWidget(e,t){t.parent=this.parent;let n=this._widgets.indexOf(t),i=Math.max(0,Math.min(e,this._widgets.length));if(-1===n)return D.insert(this._widgets,i,t),void(this.parent&&this.attachWidget(i,t));i===this._widgets.length&&i--,n!==i&&(D.move(this._widgets,n,i),this.parent&&this.moveWidget(n,i,t))}removeWidget(e){this.removeWidgetAt(this._widgets.indexOf(e))}removeWidgetAt(e){let t=D.removeAt(this._widgets,e);t&&this.parent&&this.detachWidget(e,t)}init(){super.init();let e=0;for(const t of this)this.attachWidget(e++,t)}attachWidget(e,t){let n=this.parent.node.children[e];this.parent.isAttached&&B.sendMessage(t,pe.Msg.BeforeAttach),this.parent.node.insertBefore(t.node,n),this.parent.isAttached&&B.sendMessage(t,pe.Msg.AfterAttach)}moveWidget(e,t,n){this.parent.isAttached&&B.sendMessage(n,pe.Msg.BeforeDetach),this.parent.node.removeChild(n.node),this.parent.isAttached&&B.sendMessage(n,pe.Msg.AfterDetach);let i=this.parent.node.children[t];this.parent.isAttached&&B.sendMessage(n,pe.Msg.BeforeAttach),this.parent.node.insertBefore(n.node,i),this.parent.isAttached&&B.sendMessage(n,pe.Msg.AfterAttach)}detachWidget(e,t){this.parent.isAttached&&B.sendMessage(t,pe.Msg.BeforeDetach),this.parent.node.removeChild(t.node),this.parent.isAttached&&B.sendMessage(t,pe.Msg.AfterDetach)}}!function(e){e.clampDimension=function(e){return Math.max(0,Math.floor(e))}}(oe||(oe={}));var ve,_e,ye,be,we,De,xe,Ce,Ee,Se,Ae=oe;class ke extends ge{constructor(e){super(),this.widgetOffset=0,this._fixed=0,this._spacing=4,this._dirty=!1,this._hasNormedSizes=!1,this._sizers=[],this._items=[],this._handles=[],this._box=null,this._alignment="start",this._orientation="horizontal",this.renderer=e.renderer,void 0!==e.orientation&&(this._orientation=e.orientation),void 0!==e.alignment&&(this._alignment=e.alignment),void 0!==e.spacing&&(this._spacing=oe.clampDimension(e.spacing))}dispose(){for(const e of this._items)e.dispose();this._box=null,this._items.length=0,this._sizers.length=0,this._handles.length=0,super.dispose()}get orientation(){return this._orientation}set orientation(e){this._orientation!==e&&(this._orientation=e,this.parent&&(this.parent.dataset.orientation=e,this.parent.fit()))}get alignment(){return this._alignment}set alignment(e){this._alignment!==e&&(this._alignment=e,this.parent&&(this.parent.dataset.alignment=e,this.parent.update()))}get spacing(){return this._spacing}set spacing(e){e=oe.clampDimension(e),this._spacing!==e&&(this._spacing=e,this.parent&&this.parent.fit())}get handles(){return this._handles}absoluteSizes(){return this._sizers.map((e=>e.size))}relativeSizes(){return ve.normalize(this._sizers.map((e=>e.size)))}setRelativeSizes(e,t=!0){let n=this._sizers.length,i=e.slice(0,n);for(;i.length0&&(e.sizeHint=e.size);ie.adjust(this._sizers,e,n),this.parent&&this.parent.update()}}init(){this.parent.dataset.orientation=this.orientation,this.parent.dataset.alignment=this.alignment,super.init()}attachWidget(e,t){let n=new me(t),i=ve.createHandle(this.renderer),s=ve.averageSize(this._sizers),r=ve.createSizer(s);D.insert(this._items,e,n),D.insert(this._sizers,e,r),D.insert(this._handles,e,i),this.parent.isAttached&&B.sendMessage(t,pe.Msg.BeforeAttach),this.parent.node.appendChild(t.node),this.parent.node.appendChild(i),this.parent.isAttached&&B.sendMessage(t,pe.Msg.AfterAttach),this.parent.fit()}moveWidget(e,t,n){D.move(this._items,e,t),D.move(this._sizers,e,t),D.move(this._handles,e,t),this.parent.fit()}detachWidget(e,t){let n=D.removeAt(this._items,e),i=D.removeAt(this._handles,e);D.removeAt(this._sizers,e),this.parent.isAttached&&B.sendMessage(t,pe.Msg.BeforeDetach),this.parent.node.removeChild(t.node),this.parent.node.removeChild(i),this.parent.isAttached&&B.sendMessage(t,pe.Msg.AfterDetach),n.dispose(),this.parent.fit()}onBeforeShow(e){super.onBeforeShow(e),this.parent.update()}onBeforeAttach(e){super.onBeforeAttach(e),this.parent.fit()}onChildShown(e){this.parent.fit()}onChildHidden(e){this.parent.fit()}onResize(e){this.parent.isVisible&&this._update(e.width,e.height)}onUpdateRequest(e){this.parent.isVisible&&this._update(-1,-1)}onFitRequest(e){this.parent.isAttached&&this._fit()}updateItemPosition(e,t,n,i,s,r,o){const a=this._items[e];if(a.isHidden)return;let l=this._handles[e].style;t?(n+=this.widgetOffset,a.update(n,i,o,s),n+=o,l.top=`${i}px`,l.left=`${n}px`,l.width=`${this._spacing}px`,l.height=`${s}px`):(i+=this.widgetOffset,a.update(n,i,r,o),i+=o,l.top=`${i}px`,l.left=`${n}px`,l.width=`${r}px`,l.height=`${this._spacing}px`)}_fit(){let e=0,t=-1;for(let n=0,i=this._items.length;n0&&(r.sizeHint=r.size),t.isHidden?(r.minSize=0,r.maxSize=0):(t.fit(),r.stretch=ke.getStretch(t.widget),n?(r.minSize=t.minWidth,r.maxSize=t.maxWidth,i+=t.minWidth,s=Math.max(s,t.minHeight)):(r.minSize=t.minHeight,r.maxSize=t.maxHeight,s+=t.minHeight,i=Math.max(i,t.minWidth)))}let r=this._box=M.boxSizing(this.parent.node);i+=r.horizontalSum,s+=r.verticalSum;let o=this.parent.node.style;o.minWidth=`${i}px`,o.minHeight=`${s}px`,this._dirty=!0,this.parent.parent&&B.sendMessage(this.parent.parent,pe.Msg.FitRequest),this._dirty&&B.sendMessage(this.parent,pe.Msg.UpdateRequest)}_update(e,t){this._dirty=!1;let n=0;for(let e=0,t=this._items.length;e0){let e;if(e=c?Math.max(0,r-this._fixed):Math.max(0,o-this._fixed),this._hasNormedSizes){for(let t of this._sizers)t.sizeHint*=e;this._hasNormedSizes=!1}let t=ie.calc(this._sizers,e);if(t>0)switch(this._alignment){case"start":break;case"center":a=0,l=t/2;break;case"end":a=0,l=t;break;case"justify":a=t/n,l=0;break;default:throw"unreachable"}}for(let e=0,t=this._items.length;e0,coerce:(e,t)=>Math.max(0,Math.floor(t)),changed:function(e){e.parent&&e.parent.layout instanceof ke&&e.parent.fit()}}),e.createSizer=function(e){let t=new de;return t.sizeHint=Math.floor(e),t},e.createHandle=function(e){let t=e.createHandle();return t.style.position="absolute",t.style.contain="style",t},e.averageSize=function(e){return e.reduce(((e,t)=>e+t.size),0)/e.length||0},e.normalize=function(e){let t=e.length;if(0===t)return[];let n=e.reduce(((e,t)=>e+Math.abs(t)),0);return 0===n?e.map((e=>1/t)):e.map((e=>e/n))}}(ve||(ve={}));class Me extends ke{constructor(e){super({...e,orientation:e.orientation||"vertical"}),this._titles=[],this.titleSpace=e.titleSpace||22}get titleSpace(){return this.widgetOffset}set titleSpace(e){e=Ae.clampDimension(e),this.widgetOffset!==e&&(this.widgetOffset=e,this.parent&&this.parent.fit())}get titles(){return this._titles}dispose(){this.isDisposed||(this._titles.length=0,super.dispose())}updateTitle(e,t){const n=this._titles[e],i=n.classList.contains("lm-mod-expanded"),s=_e.createTitle(this.renderer,t.title,i);this._titles[e]=s,this.parent.node.replaceChild(s,n)}insertWidget(e,t){t.id||(t.id=`id-${N.UUID.uuid4()}`),super.insertWidget(e,t)}attachWidget(e,t){const n=_e.createTitle(this.renderer,t.title);D.insert(this._titles,e,n),this.parent.node.appendChild(n),t.node.setAttribute("role","region"),t.node.setAttribute("aria-labelledby",n.id),super.attachWidget(e,t)}moveWidget(e,t,n){D.move(this._titles,e,t),super.moveWidget(e,t,n)}detachWidget(e,t){const n=D.removeAt(this._titles,e);this.parent.node.removeChild(n),super.detachWidget(e,t)}updateItemPosition(e,t,n,i,s,r,o){const a=this._titles[e].style;a.top=`${i}px`,a.left=`${n}px`,a.height=`${this.widgetOffset}px`,a.width=t?`${s}px`:`${r}px`,super.updateItemPosition(e,t,n,i,s,r,o)}}!function(e){e.createTitle=function(e,t,n=!0){const i=e.createSectionTitle(t);return i.style.position="absolute",i.style.contain="strict",i.setAttribute("aria-label",`${t.label} Section`),i.setAttribute("aria-expanded",n?"true":"false"),i.setAttribute("aria-controls",t.owner.id),n&&i.classList.add("lm-mod-expanded"),i}}(_e||(_e={}));class Fe extends pe{constructor(e={}){super(),this.addClass("lm-Panel"),this.layout=ye.createLayout(e)}get widgets(){return this.layout.widgets}addWidget(e){this.layout.addWidget(e)}insertWidget(e,t){this.layout.insertWidget(e,t)}}!function(e){e.createLayout=function(e){return e.layout||new ge}}(ye||(ye={}));class Ie extends Fe{constructor(e={}){super({layout:be.createLayout(e)}),this._handleMoved=new H(this),this._pressData=null,this.addClass("lm-SplitPanel")}dispose(){this._releaseMouse(),super.dispose()}get orientation(){return this.layout.orientation}set orientation(e){this.layout.orientation=e}get alignment(){return this.layout.alignment}set alignment(e){this.layout.alignment=e}get spacing(){return this.layout.spacing}set spacing(e){this.layout.spacing=e}get renderer(){return this.layout.renderer}get handleMoved(){return this._handleMoved}get handles(){return this.layout.handles}relativeSizes(){return this.layout.relativeSizes()}setRelativeSizes(e,t=!0){this.layout.setRelativeSizes(e,t)}handleEvent(e){switch(e.type){case"pointerdown":this._evtPointerDown(e);break;case"pointermove":this._evtPointerMove(e);break;case"pointerup":this._evtPointerUp(e);break;case"keydown":this._evtKeyDown(e);break;case"contextmenu":e.preventDefault(),e.stopPropagation()}}onBeforeAttach(e){this.node.addEventListener("pointerdown",this)}onAfterDetach(e){this.node.removeEventListener("pointerdown",this),this._releaseMouse()}onChildAdded(e){e.child.addClass("lm-SplitPanel-child"),this._releaseMouse()}onChildRemoved(e){e.child.removeClass("lm-SplitPanel-child"),this._releaseMouse()}_evtKeyDown(e){this._pressData&&(e.preventDefault(),e.stopPropagation()),27===e.keyCode&&this._releaseMouse()}_evtPointerDown(e){if(0!==e.button)return;let t,n=this.layout,i=D.findFirstIndex(n.handles,(t=>t.contains(e.target)));if(-1===i)return;e.preventDefault(),e.stopPropagation(),document.addEventListener("pointerup",this,!0),document.addEventListener("pointermove",this,!0),document.addEventListener("keydown",this,!0),document.addEventListener("contextmenu",this,!0);let s=n.handles[i],r=s.getBoundingClientRect();t="horizontal"===n.orientation?e.clientX-r.left:e.clientY-r.top;let o=window.getComputedStyle(s),a=G.overrideCursor(o.cursor);this._pressData={index:i,delta:t,override:a}}_evtPointerMove(e){let t;e.preventDefault(),e.stopPropagation();let n=this.layout,i=this.node.getBoundingClientRect();t="horizontal"===n.orientation?e.clientX-i.left-this._pressData.delta:e.clientY-i.top-this._pressData.delta,n.moveHandle(this._pressData.index,t)}_evtPointerUp(e){0===e.button&&(e.preventDefault(),e.stopPropagation(),this._releaseMouse())}_releaseMouse(){this._pressData&&(this._pressData.override.dispose(),this._pressData=null,this._handleMoved.emit(),document.removeEventListener("keydown",this,!0),document.removeEventListener("pointerup",this,!0),document.removeEventListener("pointermove",this,!0),document.removeEventListener("contextmenu",this,!0))}}!function(e){class t{createHandle(){let e=document.createElement("div");return e.className="lm-SplitPanel-handle",e}}e.Renderer=t,e.defaultRenderer=new t,e.getStretch=function(e){return ke.getStretch(e)},e.setStretch=function(e,t){ke.setStretch(e,t)}}(Ie||(Ie={})),function(e){e.createLayout=function(e){return e.layout||new ke({renderer:e.renderer||Ie.defaultRenderer,orientation:e.orientation,alignment:e.alignment,spacing:e.spacing})}}(be||(be={}));class Oe extends Ie{constructor(e={}){super({...e,layout:we.createLayout(e)}),this._widgetSizesCache=new WeakMap,this._expansionToggled=new H(this),this.addClass("lm-AccordionPanel")}get renderer(){return this.layout.renderer}get titleSpace(){return this.layout.titleSpace}set titleSpace(e){this.layout.titleSpace=e}get titles(){return this.layout.titles}get expansionToggled(){return this._expansionToggled}addWidget(e){super.addWidget(e),e.title.changed.connect(this._onTitleChanged,this)}collapse(e){const t=this.layout.widgets[e];t&&!t.isHidden&&this._toggleExpansion(e)}expand(e){const t=this.layout.widgets[e];t&&t.isHidden&&this._toggleExpansion(e)}insertWidget(e,t){super.insertWidget(e,t),t.title.changed.connect(this._onTitleChanged,this)}handleEvent(e){switch(super.handleEvent(e),e.type){case"click":this._evtClick(e);break;case"keydown":this._eventKeyDown(e)}}onBeforeAttach(e){this.node.addEventListener("click",this),this.node.addEventListener("keydown",this),super.onBeforeAttach(e)}onAfterDetach(e){super.onAfterDetach(e),this.node.removeEventListener("click",this),this.node.removeEventListener("keydown",this)}_onTitleChanged(e){const t=D.findFirstIndex(this.widgets,(t=>t.contains(e.owner)));t>=0&&(this.layout.updateTitle(t,e.owner),this.update())}_computeWidgetSize(e){const t=this.layout,n=t.widgets[e];if(!n)return;const i=n.isHidden,s=t.absoluteSizes(),r=(i?-1:1)*this.spacing,o=s.reduce(((e,t)=>e+t));let a=[...s];if(i){const t=this._widgetSizesCache.get(n);if(!t)return;a[e]+=t;const i=a.map((e=>e-t>0)).lastIndexOf(!0);-1===i?a.forEach(((n,i)=>{i!==e&&(a[i]-=s[i]/o*(t-r))})):a[i]-=t-r}else{const t=s[e];this._widgetSizesCache.set(n,t),a[e]=0;const i=a.map((e=>e>0)).lastIndexOf(!0);if(-1===i)return;a[i]=s[i]+t+r}return a.map((e=>e/(o+r)))}_evtClick(e){const t=e.target;if(t){const n=D.findFirstIndex(this.titles,(e=>e.contains(t)));n>=0&&(e.preventDefault(),e.stopPropagation(),this._toggleExpansion(n))}}_eventKeyDown(e){if(e.defaultPrevented)return;const t=e.target;let n=!1;if(t){const i=D.findFirstIndex(this.titles,(e=>e.contains(t)));if(i>=0){const s=e.keyCode.toString();if(e.key.match(/Space|Enter/)||s.match(/13|32/))t.click(),n=!0;else if("horizontal"===this.orientation?e.key.match(/ArrowLeft|ArrowRight/)||s.match(/37|39/):e.key.match(/ArrowUp|ArrowDown/)||s.match(/38|40/)){const t=e.key.match(/ArrowLeft|ArrowUp/)||s.match(/37|38/)?-1:1,r=this.titles.length,o=(i+r+t)%r;this.titles[o].focus(),n=!0}else"End"===e.key||"35"===s?(this.titles[this.titles.length-1].focus(),n=!0):"Home"!==e.key&&"36"!==s||(this.titles[0].focus(),n=!0)}n&&e.preventDefault()}}_toggleExpansion(e){const t=this.titles[e],n=this.layout.widgets[e],i=this._computeWidgetSize(e);i&&this.setRelativeSizes(i,!1),n.isHidden?(t.classList.add("lm-mod-expanded"),t.setAttribute("aria-expanded","true"),n.show()):(t.classList.remove("lm-mod-expanded"),t.setAttribute("aria-expanded","false"),n.hide()),this._expansionToggled.emit(e)}}!function(e){class t extends Ie.Renderer{constructor(){super(),this.titleClassName="lm-AccordionPanel-title",this._titleID=0,this._titleKeys=new WeakMap,this._uuid=++t._nInstance}createCollapseIcon(e){return document.createElement("span")}createSectionTitle(e){const t=document.createElement("h3");t.setAttribute("tabindex","0"),t.id=this.createTitleKey(e),t.className=this.titleClassName;for(const n in e.dataset)t.dataset[n]=e.dataset[n];t.appendChild(this.createCollapseIcon(e)).className="lm-AccordionPanel-titleCollapser";const n=t.appendChild(document.createElement("span"));return n.className="lm-AccordionPanel-titleLabel",n.textContent=e.label,n.title=e.caption||e.label,t}createTitleKey(e){let t=this._titleKeys.get(e);return void 0===t&&(t=`title-key-${this._uuid}-${this._titleID++}`,this._titleKeys.set(e,t)),t}}t._nInstance=0,e.Renderer=t,e.defaultRenderer=new t}(Oe||(Oe={})),function(e){e.createLayout=function(e){return e.layout||new Me({renderer:e.renderer||Oe.defaultRenderer,orientation:e.orientation,alignment:e.alignment,spacing:e.spacing,titleSpace:e.titleSpace})}}(we||(we={}));class Pe extends ge{constructor(e={}){super(),this._fixed=0,this._spacing=4,this._dirty=!1,this._sizers=[],this._items=[],this._box=null,this._alignment="start",this._direction="top-to-bottom",void 0!==e.direction&&(this._direction=e.direction),void 0!==e.alignment&&(this._alignment=e.alignment),void 0!==e.spacing&&(this._spacing=Ae.clampDimension(e.spacing))}dispose(){for(const e of this._items)e.dispose();this._box=null,this._items.length=0,this._sizers.length=0,super.dispose()}get direction(){return this._direction}set direction(e){this._direction!==e&&(this._direction=e,this.parent&&(this.parent.dataset.direction=e,this.parent.fit()))}get alignment(){return this._alignment}set alignment(e){this._alignment!==e&&(this._alignment=e,this.parent&&(this.parent.dataset.alignment=e,this.parent.update()))}get spacing(){return this._spacing}set spacing(e){e=Ae.clampDimension(e),this._spacing!==e&&(this._spacing=e,this.parent&&this.parent.fit())}init(){this.parent.dataset.direction=this.direction,this.parent.dataset.alignment=this.alignment,super.init()}attachWidget(e,t){D.insert(this._items,e,new me(t)),D.insert(this._sizers,e,new de),this.parent.isAttached&&B.sendMessage(t,pe.Msg.BeforeAttach),this.parent.node.appendChild(t.node),this.parent.isAttached&&B.sendMessage(t,pe.Msg.AfterAttach),this.parent.fit()}moveWidget(e,t,n){D.move(this._items,e,t),D.move(this._sizers,e,t),this.parent.update()}detachWidget(e,t){let n=D.removeAt(this._items,e);D.removeAt(this._sizers,e),this.parent.isAttached&&B.sendMessage(t,pe.Msg.BeforeDetach),this.parent.node.removeChild(t.node),this.parent.isAttached&&B.sendMessage(t,pe.Msg.AfterDetach),n.dispose(),this.parent.fit()}onBeforeShow(e){super.onBeforeShow(e),this.parent.update()}onBeforeAttach(e){super.onBeforeAttach(e),this.parent.fit()}onChildShown(e){this.parent.fit()}onChildHidden(e){this.parent.fit()}onResize(e){this.parent.isVisible&&this._update(e.width,e.height)}onUpdateRequest(e){this.parent.isVisible&&this._update(-1,-1)}onFitRequest(e){this.parent.isAttached&&this._fit()}_fit(){let e=0;for(let t=0,n=this._items.length;t0)switch(this._alignment){case"start":break;case"center":l=0,c=i/2;break;case"end":l=0,c=i;break;case"justify":l=i/n,c=0;break;default:throw"unreachable"}for(let e=0,t=this._items.length;e0,coerce:(e,t)=>Math.max(0,Math.floor(t)),changed:t}),e.sizeBasisProperty=new W({name:"sizeBasis",create:()=>0,coerce:(e,t)=>Math.max(0,Math.floor(t)),changed:t}),e.isHorizontal=function(e){return"left-to-right"===e||"right-to-left"===e},e.clampSpacing=function(e){return Math.max(0,Math.floor(e))}}(De||(De={}));class Be extends Fe{constructor(e={}){super({layout:xe.createLayout(e)}),this.addClass("lm-BoxPanel")}get direction(){return this.layout.direction}set direction(e){this.layout.direction=e}get alignment(){return this.layout.alignment}set alignment(e){this.layout.alignment=e}get spacing(){return this.layout.spacing}set spacing(e){this.layout.spacing=e}onChildAdded(e){e.child.addClass("lm-BoxPanel-child")}onChildRemoved(e){e.child.removeClass("lm-BoxPanel-child")}}!function(e){e.getStretch=function(e){return Pe.getStretch(e)},e.setStretch=function(e,t){Pe.setStretch(e,t)},e.getSizeBasis=function(e){return Pe.getSizeBasis(e)},e.setSizeBasis=function(e,t){Pe.setSizeBasis(e,t)}}(Be||(Be={})),function(e){e.createLayout=function(e){return e.layout||new Pe(e)}}(xe||(xe={}));class Re extends pe{constructor(e){super({node:Ce.createNode()}),this._activeIndex=-1,this._items=[],this._results=null,this.addClass("lm-CommandPalette"),this.setFlag(pe.Flag.DisallowLayout),this.commands=e.commands,this.renderer=e.renderer||Re.defaultRenderer,this.commands.commandChanged.connect(this._onGenericChange,this),this.commands.keyBindingChanged.connect(this._onGenericChange,this)}dispose(){this._items.length=0,this._results=null,super.dispose()}get searchNode(){return this.node.getElementsByClassName("lm-CommandPalette-search")[0]}get inputNode(){return this.node.getElementsByClassName("lm-CommandPalette-input")[0]}get contentNode(){return this.node.getElementsByClassName("lm-CommandPalette-content")[0]}get items(){return this._items}addItem(e){let t=Ce.createItem(this.commands,e);return this._items.push(t),this.refresh(),t}addItems(e){const t=e.map((e=>Ce.createItem(this.commands,e)));return t.forEach((e=>this._items.push(e))),this.refresh(),t}removeItem(e){this.removeItemAt(this._items.indexOf(e))}removeItemAt(e){D.removeAt(this._items,e)&&this.refresh()}clearItems(){0!==this._items.length&&(this._items.length=0,this.refresh())}refresh(){this._results=null,""!==this.inputNode.value?this.node.getElementsByClassName("lm-close-icon")[0].style.display="inherit":this.node.getElementsByClassName("lm-close-icon")[0].style.display="none",this.update()}handleEvent(e){switch(e.type){case"click":this._evtClick(e);break;case"keydown":this._evtKeyDown(e);break;case"input":this.refresh();break;case"focus":case"blur":this._toggleFocused()}}onBeforeAttach(e){this.node.addEventListener("click",this),this.node.addEventListener("keydown",this),this.node.addEventListener("input",this),this.node.addEventListener("focus",this,!0),this.node.addEventListener("blur",this,!0)}onAfterDetach(e){this.node.removeEventListener("click",this),this.node.removeEventListener("keydown",this),this.node.removeEventListener("input",this),this.node.removeEventListener("focus",this,!0),this.node.removeEventListener("blur",this,!0)}onAfterShow(e){this.update(),super.onAfterShow(e)}onActivateRequest(e){if(this.isAttached){let e=this.inputNode;e.focus(),e.select()}}onUpdateRequest(e){if(this.isHidden)return;let t=this.inputNode.value,n=this.contentNode,i=this._results;if(i||(i=this._results=Ce.search(this._items,t),this._activeIndex=t?D.findFirstIndex(i,Ce.canActivate):-1),!t&&0===i.length)return void te.render(null,n);if(t&&0===i.length){let e=this.renderer.renderEmptyMessage({query:t});return void te.render(e,n)}let s=this.renderer,r=this._activeIndex,o=new Array(i.length);for(let e=0,t=i.length;e=i.length)n.scrollTop=0;else{let e=n.children[r];M.scrollIntoViewIfNeeded(n,e)}}_evtClick(e){if(0!==e.button)return;if(e.target.classList.contains("lm-close-icon"))return this.inputNode.value="",void this.refresh();let t=D.findFirstIndex(this.contentNode.children,(t=>t.contains(e.target)));-1!==t&&(e.preventDefault(),e.stopPropagation(),this._execute(t))}_evtKeyDown(e){if(!(e.altKey||e.ctrlKey||e.metaKey||e.shiftKey))switch(e.keyCode){case 13:e.preventDefault(),e.stopPropagation(),this._execute(this._activeIndex);break;case 38:e.preventDefault(),e.stopPropagation(),this._activatePreviousItem();break;case 40:e.preventDefault(),e.stopPropagation(),this._activateNextItem()}}_activateNextItem(){if(!this._results||0===this._results.length)return;let e=this._activeIndex,t=this._results.length,n=ee-t)),c=r.slice(0,l),u=r.slice(l);for(let e=0,t=u.length;en.command===e&&N.JSONExt.deepEqual(n.args,t)))||null}}}(Ce||(Ce={}));class Te extends pe{constructor(e){super({node:Ee.createNode()}),this._childIndex=-1,this._activeIndex=-1,this._openTimerID=0,this._closeTimerID=0,this._items=[],this._childMenu=null,this._parentMenu=null,this._aboutToClose=new H(this),this._menuRequested=new H(this),this.addClass("lm-Menu"),this.setFlag(pe.Flag.DisallowLayout),this.commands=e.commands,this.renderer=e.renderer||Te.defaultRenderer}dispose(){this.close(),this._items.length=0,super.dispose()}get aboutToClose(){return this._aboutToClose}get menuRequested(){return this._menuRequested}get parentMenu(){return this._parentMenu}get childMenu(){return this._childMenu}get rootMenu(){let e=this;for(;e._parentMenu;)e=e._parentMenu;return e}get leafMenu(){let e=this;for(;e._childMenu;)e=e._childMenu;return e}get contentNode(){return this.node.getElementsByClassName("lm-Menu-content")[0]}get activeItem(){return this._items[this._activeIndex]||null}set activeItem(e){this.activeIndex=e?this._items.indexOf(e):-1}get activeIndex(){return this._activeIndex}set activeIndex(e){(e<0||e>=this._items.length)&&(e=-1),-1===e||Ee.canActivate(this._items[e])||(e=-1),this._activeIndex!==e&&(this._activeIndex=e,this._activeIndex>=0&&this.contentNode.childNodes[this._activeIndex]&&this.contentNode.childNodes[this._activeIndex].focus(),this.update())}get items(){return this._items}activateNextItem(){let e=this._items.length,t=this._activeIndex,n=t{this.activeIndex=e}})}te.render(r,this.contentNode)}onCloseRequest(e){this._cancelOpenTimer(),this._cancelCloseTimer(),this.activeIndex=-1;let t=this._childMenu;t&&(this._childIndex=-1,this._childMenu=null,t._parentMenu=null,t.close());let n=this._parentMenu;n&&(this._parentMenu=null,n._childIndex=-1,n._childMenu=null,n.activate()),this.isAttached&&this._aboutToClose.emit(void 0),super.onCloseRequest(e)}_evtKeyDown(e){e.preventDefault(),e.stopPropagation();let t=e.keyCode;if(13===t)return void this.triggerActiveItem();if(27===t)return void this.close();if(37===t)return void(this._parentMenu?this.close():this._menuRequested.emit("previous"));if(38===t)return void this.activatePreviousItem();if(39===t){let e=this.activeItem;return void(e&&"submenu"===e.type?this.triggerActiveItem():this.rootMenu._menuRequested.emit("next"))}if(40===t)return void this.activateNextItem();let n=Y().keyForKeydownEvent(e);if(!n)return;let i=this._activeIndex+1,s=Ee.findMnemonic(this._items,n,i);-1===s.index||s.multiple?-1!==s.index?this.activeIndex=s.index:-1!==s.auto&&(this.activeIndex=s.auto):(this.activeIndex=s.index,this.triggerActiveItem())}_evtMouseUp(e){0===e.button&&(e.preventDefault(),e.stopPropagation(),this.triggerActiveItem())}_evtMouseMove(e){let t=D.findFirstIndex(this.contentNode.children,(t=>M.hitTest(t,e.clientX,e.clientY)));if(t===this._activeIndex)return;if(this.activeIndex=t,t=this.activeIndex,t===this._childIndex)return this._cancelOpenTimer(),void this._cancelCloseTimer();-1!==this._childIndex&&this._startCloseTimer(),this._cancelOpenTimer();let n=this.activeItem;n&&"submenu"===n.type&&n.submenu&&this._startOpenTimer()}_evtMouseEnter(e){for(let e=this._parentMenu;e;e=e._parentMenu)e._cancelOpenTimer(),e._cancelCloseTimer(),e.activeIndex=e._childIndex}_evtMouseLeave(e){if(this._cancelOpenTimer(),!this._childMenu)return void(this.activeIndex=-1);let{clientX:t,clientY:n}=e;M.hitTest(this._childMenu.node,t,n)?this._cancelCloseTimer():(this.activeIndex=-1,this._startCloseTimer())}_evtMouseDown(e){this._parentMenu||(Ee.hitTestMenus(this,e.clientX,e.clientY)?(e.preventDefault(),e.stopPropagation()):this.close())}_openChildMenu(e=!1){let t=this.activeItem;if(!t||"submenu"!==t.type||!t.submenu)return void this._closeChildMenu();let n=t.submenu;if(n===this._childMenu)return;Te.saveWindowData(),this._closeChildMenu(),this._childMenu=n,this._childIndex=this._activeIndex,n._parentMenu=this,B.sendMessage(this,pe.Msg.UpdateRequest);let i=this.contentNode.children[this._activeIndex];Ee.openSubmenu(n,i),e&&(n.activeIndex=-1,n.activateNextItem()),n.activate()}_closeChildMenu(){this._childMenu&&this._childMenu.close()}_startOpenTimer(){0===this._openTimerID&&(this._openTimerID=window.setTimeout((()=>{this._openTimerID=0,this._openChildMenu()}),Ee.TIMER_DELAY))}_startCloseTimer(){0===this._closeTimerID&&(this._closeTimerID=window.setTimeout((()=>{this._closeTimerID=0,this._closeChildMenu()}),Ee.TIMER_DELAY))}_cancelOpenTimer(){0!==this._openTimerID&&(clearTimeout(this._openTimerID),this._openTimerID=0)}_cancelCloseTimer(){0!==this._closeTimerID&&(clearTimeout(this._closeTimerID),this._closeTimerID=0)}static saveWindowData(){Ee.saveWindowData()}}!function(e){class t{renderItem(e){let t=this.createItemClass(e),n=this.createItemDataset(e),i=this.createItemARIA(e);return ue.li({className:t,dataset:n,tabindex:"0",onfocus:e.onfocus,...i},this.renderIcon(e),this.renderLabel(e),this.renderShortcut(e),this.renderSubmenu(e))}renderIcon(e){let t=this.createIconClass(e);return ue.div({className:t},e.item.icon,e.item.iconLabel)}renderLabel(e){let t=this.formatLabel(e);return ue.div({className:"lm-Menu-itemLabel"},t)}renderShortcut(e){let t=this.formatShortcut(e);return ue.div({className:"lm-Menu-itemShortcut"},t)}renderSubmenu(e){return ue.div({className:"lm-Menu-itemSubmenuIcon"})}createItemClass(e){let t="lm-Menu-item";e.item.isEnabled||(t+=" lm-mod-disabled"),e.item.isToggled&&(t+=" lm-mod-toggled"),e.item.isVisible||(t+=" lm-mod-hidden"),e.active&&(t+=" lm-mod-active"),e.collapsed&&(t+=" lm-mod-collapsed");let n=e.item.className;return n&&(t+=` ${n}`),t}createItemDataset(e){let t,{type:n,command:i,dataset:s}=e.item;return t="command"===n?{...s,type:n,command:i}:{...s,type:n},t}createIconClass(e){let t="lm-Menu-itemIcon",n=e.item.iconClass;return n?`${t} ${n}`:t}createItemARIA(e){let t={};switch(e.item.type){case"separator":t.role="presentation";break;case"submenu":t["aria-haspopup"]="true",e.item.isEnabled||(t["aria-disabled"]="true");break;default:e.item.isEnabled||(t["aria-disabled"]="true"),t.role="menuitem"}return t}formatLabel(e){let{label:t,mnemonic:n}=e.item;if(n<0||n>=t.length)return t;let i=t.slice(0,n),s=t.slice(n+1),r=t[n];return[i,ue.span({className:"lm-Menu-itemMnemonic"},r),s]}formatShortcut(e){let t=e.item.keyBinding;return t?ae.formatKeystroke(t.keys):null}}e.Renderer=t,e.defaultRenderer=new t}(Te||(Te={})),function(e){e.TIMER_DELAY=300,e.SUBMENU_OVERLAP=3;let t=null,n=0;function i(){return n>0?(n--,t):r()}function s(e){return"separator"!==e.type&&e.isEnabled&&e.isVisible}function r(){return{pageXOffset:window.pageXOffset,pageYOffset:window.pageYOffset,clientWidth:document.documentElement.clientWidth,clientHeight:document.documentElement.clientHeight}}e.saveWindowData=function(){t=r(),n++},e.createNode=function(){let e=document.createElement("div"),t=document.createElement("ul");return t.className="lm-Menu-content",e.appendChild(t),t.setAttribute("role","menu"),e.tabIndex=0,e},e.canActivate=s,e.createItem=function(e,t){return new o(e.commands,t)},e.hitTestMenus=function(e,t,n){for(let i=e;i;i=i.childMenu)if(M.hitTest(i.node,t,n))return!0;return!1},e.computeCollapsed=function(e){let t=new Array(e.length);D.fill(t,!1);let n=0,i=e.length;for(;n=0;--s){let n=e[s];if(n.isVisible){if("separator"!==n.type)break;t[s]=!0}}let r=!1;for(;++na+c&&(t=a+c-f),!r&&n+m>l+u&&(n>l+u?n=l+u-m:n-=m),p.transform=`translate(${Math.max(0,t)}px, ${Math.max(0,n)}px`,p.opacity="1"},e.openSubmenu=function(t,n){const s=i();let r=s.pageXOffset,o=s.pageYOffset,a=s.clientWidth,l=s.clientHeight;B.sendMessage(t,pe.Msg.UpdateRequest);let c=l,u=t.node,d=u.style;d.opacity="0",d.maxHeight=`${c}px`,pe.attach(t,document.body);let{width:h,height:p}=u.getBoundingClientRect(),f=M.boxSizing(t.node),m=n.getBoundingClientRect(),g=m.right-e.SUBMENU_OVERLAP;g+h>r+a&&(g=m.left+e.SUBMENU_OVERLAP-h);let v=m.top-f.borderTop-f.paddingTop;v+p>o+l&&(v=m.bottom+f.borderBottom+f.paddingBottom-p),d.transform=`translate(${Math.max(0,g)}px, ${Math.max(0,v)}px`,d.opacity="1"},e.findMnemonic=function(e,t,n){let i=-1,r=-1,o=!1,a=t.toUpperCase();for(let t=0,l=e.length;t=0&&hn.command===e&&N.JSONExt.deepEqual(n.args,t)))||null}return null}}}(Ee||(Ee={}));class Le{constructor(e){this._groupByTarget=!0,this._idTick=0,this._items=[],this._sortBySelector=!0;const{groupByTarget:t,sortBySelector:n,...i}=e;this.menu=new Te(i),this._groupByTarget=!1!==t,this._sortBySelector=!1!==n}addItem(e){let t=Se.createItem(e,this._idTick++);return this._items.push(t),new $((()=>{D.removeFirstOf(this._items,t)}))}open(e){if(Te.saveWindowData(),this.menu.clearItems(),0===this._items.length)return!1;let t=Se.matchItems(this._items,e,this._groupByTarget,this._sortBySelector);if(!t||0===t.length)return!1;for(const e of t)this.menu.addItem(e);return this.menu.open(e.clientX,e.clientY),!0}}!function(e){function t(e,t){let n=e.rank,i=t.rank;return n!==i?n=this._titles.length)&&(e=-1),this._currentIndex===e)return;let t=this._currentIndex,n=this._titles[t]||null,i=e,s=this._titles[i]||null;this._currentIndex=i,this._previousTitle=n,this.update(),this._currentChanged.emit({previousIndex:t,previousTitle:n,currentIndex:i,currentTitle:s})}get name(){return this._name}set name(e){this._name=e,e?this.contentNode.setAttribute("aria-label",e):this.contentNode.removeAttribute("aria-label")}get orientation(){return this._orientation}set orientation(e){this._orientation!==e&&(this._releaseMouse(),this._orientation=e,this.dataset.orientation=e,this.contentNode.setAttribute("aria-orientation",e))}get addButtonEnabled(){return this._addButtonEnabled}set addButtonEnabled(e){this._addButtonEnabled!==e&&(this._addButtonEnabled=e,e?this.addButtonNode.classList.remove("lm-mod-hidden"):this.addButtonNode.classList.add("lm-mod-hidden"))}get titles(){return this._titles}get contentNode(){return this.node.getElementsByClassName("lm-TabBar-content")[0]}get addButtonNode(){return this.node.getElementsByClassName("lm-TabBar-addButton")[0]}addTab(e){return this.insertTab(this._titles.length,e)}insertTab(e,t){this._releaseMouse();let n=ze.asTitle(t),i=this._titles.indexOf(n),s=Math.max(0,Math.min(e,this._titles.length));return-1===i?(D.insert(this._titles,s,n),n.changed.connect(this._onTitleChanged,this),this.update(),this._adjustCurrentForInsert(s,n),n):(s===this._titles.length&&s--,i===s||(D.move(this._titles,i,s),this.update(),this._adjustCurrentForMove(i,s)),n)}removeTab(e){this.removeTabAt(this._titles.indexOf(e))}removeTabAt(e){this._releaseMouse();let t=D.removeAt(this._titles,e);t&&(t.changed.disconnect(this._onTitleChanged,this),t===this._previousTitle&&(this._previousTitle=null),this.update(),this._adjustCurrentForRemove(e,t))}clearTabs(){if(0===this._titles.length)return;this._releaseMouse();for(let e of this._titles)e.changed.disconnect(this._onTitleChanged,this);let e=this.currentIndex,t=this.currentTitle;this._currentIndex=-1,this._previousTitle=null,this._titles.length=0,this.update(),-1!==e&&this._currentChanged.emit({previousIndex:e,previousTitle:t,currentIndex:-1,currentTitle:null})}releaseMouse(){this._releaseMouse()}handleEvent(e){switch(e.type){case"pointerdown":this._evtPointerDown(e);break;case"pointermove":this._evtPointerMove(e);break;case"pointerup":this._evtPointerUp(e);break;case"dblclick":this._evtDblClick(e);break;case"keydown":e.eventPhase===Event.CAPTURING_PHASE?this._evtKeyDownCapturing(e):this._evtKeyDown(e);break;case"contextmenu":e.preventDefault(),e.stopPropagation()}}onBeforeAttach(e){this.node.addEventListener("pointerdown",this),this.node.addEventListener("dblclick",this),this.node.addEventListener("keydown",this)}onAfterDetach(e){this.node.removeEventListener("pointerdown",this),this.node.removeEventListener("dblclick",this),this.node.removeEventListener("keydown",this),this._releaseMouse()}onUpdateRequest(e){var t;let n=this._titles,i=this.renderer,s=this.currentTitle,r=new Array(n.length);const o=null!==(t=this._getCurrentTabindex())&&void 0!==t?t:this._currentIndex>-1?this._currentIndex:0;for(let e=0,t=n.length;eM.hitTest(t,e.clientX,e.clientY)));if(-1===n)return;let i=this.titles[n],s=t[n].querySelector(".lm-TabBar-tabLabel");if(s&&s.contains(e.target)){let e=i.label||"",t=s.innerHTML;s.innerHTML="";let n=document.createElement("input");n.classList.add("lm-TabBar-tabInput"),n.value=e,s.appendChild(n);let r=()=>{n.removeEventListener("blur",r),s.innerHTML=t,this.node.addEventListener("keydown",this)};n.addEventListener("dblclick",(e=>e.stopPropagation())),n.addEventListener("blur",r),n.addEventListener("keydown",(e=>{"Enter"===e.key?(""!==n.value&&(i.label=i.caption=n.value),r()):"Escape"===e.key&&r()})),this.node.removeEventListener("keydown",this),n.select(),n.focus(),s.children.length>0&&s.children[0].focus()}}_evtKeyDownCapturing(e){e.eventPhase===Event.CAPTURING_PHASE&&(e.preventDefault(),e.stopPropagation(),"Escape"===e.key&&this._releaseMouse())}_evtKeyDown(e){var t,n,i;if("Tab"!==e.key&&e.eventPhase!==Event.CAPTURING_PHASE)if("Enter"===e.key||"Spacebar"===e.key||" "===e.key){const t=document.activeElement;if(this.addButtonEnabled&&this.addButtonNode.contains(t))e.preventDefault(),e.stopPropagation(),this._addRequested.emit();else{const n=D.findFirstIndex(this.contentNode.children,(e=>e.contains(t)));n>=0&&(e.preventDefault(),e.stopPropagation(),this.currentIndex=n)}}else if(je.includes(e.key)){const s=[...this.contentNode.children];if(this.addButtonEnabled&&s.push(this.addButtonNode),s.length<=1)return;e.preventDefault(),e.stopPropagation();let r,o=s.indexOf(document.activeElement);-1===o&&(o=this._currentIndex),"ArrowRight"===e.key&&"horizontal"===this._orientation||"ArrowDown"===e.key&&"vertical"===this._orientation?r=null!==(t=s[o+1])&&void 0!==t?t:s[0]:"ArrowLeft"===e.key&&"horizontal"===this._orientation||"ArrowUp"===e.key&&"vertical"===this._orientation?r=null!==(n=s[o-1])&&void 0!==n?n:s[s.length-1]:"Home"===e.key?r=s[0]:"End"===e.key&&(r=s[s.length-1]),r&&(null===(i=s[o])||void 0===i||i.setAttribute("tabindex","-1"),null==r||r.setAttribute("tabindex","0"),r.focus())}}_evtPointerDown(e){if(0!==e.button&&1!==e.button)return;if(this._dragData)return;if(e.target.classList.contains("lm-TabBar-tabInput"))return;let t=this.addButtonEnabled&&this.addButtonNode.contains(e.target),n=this.contentNode.children,i=D.findFirstIndex(n,(t=>M.hitTest(t,e.clientX,e.clientY)));if(-1===i&&!t)return;if(e.preventDefault(),e.stopPropagation(),this._dragData={tab:n[i],index:i,pressX:e.clientX,pressY:e.clientY,tabPos:-1,tabSize:-1,tabPressPos:-1,targetIndex:-1,tabLayout:null,contentRect:null,override:null,dragActive:!1,dragAborted:!1,detachRequested:!1},this.document.addEventListener("pointerup",this,!0),1===e.button||t)return;let s=n[i].querySelector(this.renderer.closeIconSelector);s&&s.contains(e.target)||(this.tabsMovable&&(this.document.addEventListener("pointermove",this,!0),this.document.addEventListener("keydown",this,!0),this.document.addEventListener("contextmenu",this,!0)),this.allowDeselect&&this.currentIndex===i?this.currentIndex=-1:this.currentIndex=i,-1!==this.currentIndex&&this._tabActivateRequested.emit({index:this.currentIndex,title:this.currentTitle}))}_evtPointerMove(e){let t=this._dragData;if(!t)return;e.preventDefault(),e.stopPropagation();let n=this.contentNode.children;if(t.dragActive||ze.dragExceeded(t,e)){if(!t.dragActive){let e=t.tab.getBoundingClientRect();"horizontal"===this._orientation?(t.tabPos=t.tab.offsetLeft,t.tabSize=e.width,t.tabPressPos=t.pressX-e.left):(t.tabPos=t.tab.offsetTop,t.tabSize=e.height,t.tabPressPos=t.pressY-e.top),t.tabPressOffset={x:t.pressX-e.left,y:t.pressY-e.top},t.tabLayout=ze.snapTabLayout(n,this._orientation),t.contentRect=this.contentNode.getBoundingClientRect(),t.override=G.overrideCursor("default"),t.tab.classList.add("lm-mod-dragging"),this.addClass("lm-mod-dragging"),t.dragActive=!0}if(!t.detachRequested&&ze.detachExceeded(t,e)){t.detachRequested=!0;let i=t.index,s=e.clientX,r=e.clientY,o=n[i],a=this._titles[i];if(this._tabDetachRequested.emit({index:i,title:a,tab:o,clientX:s,clientY:r,offset:t.tabPressOffset}),t.dragAborted)return}ze.layoutTabs(n,t,e,this._orientation)}}_evtPointerUp(e){if(0!==e.button&&1!==e.button)return;const t=this._dragData;if(!t)return;if(e.preventDefault(),e.stopPropagation(),this.document.removeEventListener("pointermove",this,!0),this.document.removeEventListener("pointerup",this,!0),this.document.removeEventListener("keydown",this,!0),this.document.removeEventListener("contextmenu",this,!0),!t.dragActive){if(this._dragData=null,this.addButtonEnabled&&this.addButtonNode.contains(e.target))return void this._addRequested.emit(void 0);let n=this.contentNode.children,i=D.findFirstIndex(n,(t=>M.hitTest(t,e.clientX,e.clientY)));if(i!==t.index)return;let s=this._titles[i];if(!s.closable)return;if(1===e.button)return void this._tabCloseRequested.emit({index:i,title:s});let r=n[i].querySelector(this.renderer.closeIconSelector);return r&&r.contains(e.target)?void this._tabCloseRequested.emit({index:i,title:s}):void 0}if(0!==e.button)return;ze.finalizeTabPosition(t,this._orientation),t.tab.classList.remove("lm-mod-dragging");let n=ze.parseTransitionDuration(t.tab);setTimeout((()=>{if(t.dragAborted)return;this._dragData=null,ze.resetTabPositions(this.contentNode.children,this._orientation),t.override.dispose(),this.removeClass("lm-mod-dragging");let e=t.index,n=t.targetIndex;-1!==n&&e!==n&&(D.move(this._titles,e,n),this._adjustCurrentForMove(e,n),this._tabMoved.emit({fromIndex:e,toIndex:n,title:this._titles[n]}),B.sendMessage(this,pe.Msg.UpdateRequest))}),n)}_releaseMouse(){let e=this._dragData;e&&(this._dragData=null,this.document.removeEventListener("pointermove",this,!0),this.document.removeEventListener("pointerup",this,!0),this.document.removeEventListener("keydown",this,!0),this.document.removeEventListener("contextmenu",this,!0),e.dragAborted=!0,e.dragActive&&(ze.resetTabPositions(this.contentNode.children,this._orientation),e.override.dispose(),e.tab.classList.remove("lm-mod-dragging"),this.removeClass("lm-mod-dragging")))}_adjustCurrentForInsert(e,t){let n=this.currentTitle,i=this._currentIndex,s=this.insertBehavior;if("select-tab"===s||"select-tab-if-needed"===s&&-1===i)return this._currentIndex=e,this._previousTitle=n,void this._currentChanged.emit({previousIndex:i,previousTitle:n,currentIndex:e,currentTitle:t});i>=e&&this._currentIndex++}_adjustCurrentForMove(e,t){this._currentIndex===e?this._currentIndex=t:this._currentIndex=t?this._currentIndex++:this._currentIndex>e&&this._currentIndex<=t&&this._currentIndex--}_adjustCurrentForRemove(e,t){let n=this._currentIndex,i=this.removeBehavior;if(n===e){if(0===this._titles.length)return this._currentIndex=-1,void this._currentChanged.emit({previousIndex:e,previousTitle:t,currentIndex:-1,currentTitle:null});if("select-tab-after"===i)return this._currentIndex=Math.min(e,this._titles.length-1),void this._currentChanged.emit({previousIndex:e,previousTitle:t,currentIndex:this._currentIndex,currentTitle:this.currentTitle});if("select-tab-before"===i)return this._currentIndex=Math.max(0,e-1),void this._currentChanged.emit({previousIndex:e,previousTitle:t,currentIndex:this._currentIndex,currentTitle:this.currentTitle});if("select-previous-tab"===i)return this._previousTitle?(this._currentIndex=this._titles.indexOf(this._previousTitle),this._previousTitle=null):this._currentIndex=Math.min(e,this._titles.length-1),void this._currentChanged.emit({previousIndex:e,previousTitle:t,currentIndex:this._currentIndex,currentTitle:this.currentTitle});this._currentIndex=-1,this._currentChanged.emit({previousIndex:e,previousTitle:t,currentIndex:-1,currentTitle:null})}else n>e&&this._currentIndex--}_onTitleChanged(e){this.update()}}var ze,Ue,qe,We,He,Ke,$e,Ve,Je,Ge,Ye,Xe;!function(e){class t{constructor(){this.closeIconSelector=".lm-TabBar-tabCloseIcon",this._tabID=0,this._tabKeys=new WeakMap,this._uuid=++t._nInstance}renderTab(e){let t=e.title.caption,n=this.createTabKey(e),i=n,s=this.createTabStyle(e),r=this.createTabClass(e),o=this.createTabDataset(e),a=this.createTabARIA(e);return e.title.closable?ue.li({id:i,key:n,className:r,title:t,style:s,dataset:o,...a},this.renderIcon(e),this.renderLabel(e),this.renderCloseIcon(e)):ue.li({id:i,key:n,className:r,title:t,style:s,dataset:o,...a},this.renderIcon(e),this.renderLabel(e))}renderIcon(e){const{title:t}=e;let n=this.createIconClass(e);return ue.div({className:n},t.icon,t.iconLabel)}renderLabel(e){return ue.div({className:"lm-TabBar-tabLabel"},e.title.label)}renderCloseIcon(e){return ue.div({className:"lm-TabBar-tabCloseIcon"})}createTabKey(e){let t=this._tabKeys.get(e.title);return void 0===t&&(t=`tab-key-${this._uuid}-${this._tabID++}`,this._tabKeys.set(e.title,t)),t}createTabStyle(e){return{zIndex:`${e.zIndex}`}}createTabClass(e){let t="lm-TabBar-tab";return e.title.className&&(t+=` ${e.title.className}`),e.title.closable&&(t+=" lm-mod-closable"),e.current&&(t+=" lm-mod-current"),t}createTabDataset(e){return e.title.dataset}createTabARIA(e){var t;return{role:"tab","aria-selected":e.current.toString(),tabindex:`${null!==(t=e.tabIndex)&&void 0!==t?t:"-1"}`}}createIconClass(e){let t="lm-TabBar-tabIcon",n=e.title.iconClass;return n?`${t} ${n}`:t}}t._nInstance=0,e.Renderer=t,e.defaultRenderer=new t,e.addButtonSelector=".lm-TabBar-addButton"}(Ne||(Ne={})),function(e){e.DRAG_THRESHOLD=5,e.DETACH_THRESHOLD=20,e.createNode=function(){let e=document.createElement("div"),t=document.createElement("ul");t.setAttribute("role","tablist"),t.className="lm-TabBar-content",e.appendChild(t);let n=document.createElement("div");return n.className="lm-TabBar-addButton lm-mod-hidden",n.setAttribute("tabindex","-1"),n.setAttribute("role","button"),e.appendChild(n),e},e.asTitle=function(e){return e instanceof he?e:new he(e)},e.parseTransitionDuration=function(e){let t=window.getComputedStyle(e);return 1e3*(parseFloat(t.transitionDuration)||0)},e.snapTabLayout=function(e,t){let n=new Array(e.length);for(let i=0,s=e.length;i=e.DRAG_THRESHOLD||s>=e.DRAG_THRESHOLD},e.detachExceeded=function(t,n){let i=t.contentRect;return n.clientX=i.right+e.DETACH_THRESHOLD||n.clientY=i.bottom+e.DETACH_THRESHOLD},e.layoutTabs=function(e,t,n,i){let s,r,o,a;"horizontal"===i?(s=t.pressX,r=n.clientX-t.contentRect.left,o=n.clientX,a=t.contentRect.width):(s=t.pressY,r=n.clientY-t.contentRect.top,o=n.clientY,a=t.contentRect.height);let l=t.index,c=r-t.tabPressPos,u=c+t.tabSize;for(let n=0,r=e.length;n>1);if(nt.index&&u>h)r=-t.tabSize-d.margin+"px",l=Math.max(l,n);else if(n===t.index){let e=o-s,n=a-(t.tabPos+t.tabSize);r=`${Math.max(-t.tabPos,Math.min(e,n))}px`}else r="";"horizontal"===i?e[n].style.left=r:e[n].style.top=r}t.targetIndex=l},e.finalizeTabPosition=function(e,t){let n,i;if(n="horizontal"===t?e.contentRect.width:e.contentRect.height,e.targetIndex===e.index)i=0;else if(e.targetIndex>e.index){let t=e.tabLayout[e.targetIndex];i=t.pos+t.size-e.tabSize-e.tabPos}else i=e.tabLayout[e.targetIndex].pos-e.tabPos;let s=n-(e.tabPos+e.tabSize),r=Math.max(-e.tabPos,Math.min(i,s));"horizontal"===t?e.tab.style.left=`${r}px`:e.tab.style.top=`${r}px`},e.resetTabPositions=function(e,t){for(const n of e)"horizontal"===t?n.style.left="":n.style.top=""}}(ze||(ze={}));class Ze extends fe{constructor(e){super(),this._spacing=4,this._dirty=!1,this._root=null,this._box=null,this._items=new Map,this.renderer=e.renderer,void 0!==e.spacing&&(this._spacing=Ae.clampDimension(e.spacing)),this._document=e.document||document,this._hiddenMode=void 0!==e.hiddenMode?e.hiddenMode:pe.HiddenMode.Display}dispose(){let e=this[Symbol.iterator]();this._items.forEach((e=>{e.dispose()})),this._box=null,this._root=null,this._items.clear();for(const t of e)t.dispose();super.dispose()}get hiddenMode(){return this._hiddenMode}set hiddenMode(e){if(this._hiddenMode!==e){this._hiddenMode=e;for(const e of this.tabBars())if(e.titles.length>1)for(const t of e.titles)t.owner.hiddenMode=this._hiddenMode}}get spacing(){return this._spacing}set spacing(e){e=Ae.clampDimension(e),this._spacing!==e&&(this._spacing=e,this.parent&&this.parent.fit())}get isEmpty(){return null===this._root}[Symbol.iterator](){return this._root?this._root.iterAllWidgets():S()}widgets(){return this._root?this._root.iterUserWidgets():S()}selectedWidgets(){return this._root?this._root.iterSelectedWidgets():S()}tabBars(){return this._root?this._root.iterTabBars():S()}handles(){return this._root?this._root.iterHandles():S()}moveHandle(e,t,n){let i=e.classList.contains("lm-mod-hidden");if(!this._root||i)return;let s,r=this._root.findSplitNode(e);r&&(s="horizontal"===r.node.orientation?t-e.offsetLeft:n-e.offsetTop,0!==s&&(r.node.holdSizes(),ie.adjust(r.node.sizers,r.index,s),this.parent&&this.parent.update()))}saveLayout(){return this._root?(this._root.holdAllSizes(),{main:this._root.createConfig()}):{main:null}}restoreLayout(e){let t,n=new Set;t=e.main?Ue.normalizeAreaConfig(e.main,n):null;let i=this.widgets(),s=this.tabBars(),r=this.handles();this._root=null;for(const e of i)n.has(e)||(e.parent=null);for(const e of s)e.dispose();for(const e of r)e.parentNode&&e.parentNode.removeChild(e);for(const e of n)e.parent=this.parent;this._root=t?Ue.realizeAreaConfig(t,{createTabBar:e=>this._createTabBar(),createHandle:()=>this._createHandle()},this._document):null,this.parent&&(n.forEach((e=>{this.attachWidget(e)})),this.parent.fit())}addWidget(e,t={}){let n=t.ref||null,i=t.mode||"tab-after",s=null;if(this._root&&n&&(s=this._root.findTabNode(n)),n&&!s)throw new Error("Reference widget is not in the layout.");switch(e.parent=this.parent,i){case"tab-after":this._insertTab(e,n,s,!0);break;case"tab-before":this._insertTab(e,n,s,!1);break;case"split-top":this._insertSplit(e,n,s,"vertical",!1);break;case"split-left":this._insertSplit(e,n,s,"horizontal",!1);break;case"split-right":this._insertSplit(e,n,s,"horizontal",!0);break;case"split-bottom":this._insertSplit(e,n,s,"vertical",!0);break;case"merge-top":this._insertSplit(e,n,s,"vertical",!1,!0);break;case"merge-left":this._insertSplit(e,n,s,"horizontal",!1,!0);break;case"merge-right":this._insertSplit(e,n,s,"horizontal",!0,!0);break;case"merge-bottom":this._insertSplit(e,n,s,"vertical",!0,!0)}this.parent&&(this.attachWidget(e),this.parent.fit())}removeWidget(e){this._removeWidget(e),this.parent&&(this.detachWidget(e),this.parent.fit())}hitTestTabAreas(e,t){if(!this._root||!this.parent||!this.parent.isVisible)return null;this._box||(this._box=M.boxSizing(this.parent.node));let n=this.parent.node.getBoundingClientRect(),i=e-n.left-this._box.borderLeft,s=t-n.top-this._box.borderTop,r=this._root.hitTestTabNodes(i,s);if(!r)return null;let{tabBar:o,top:a,left:l,width:c,height:u}=r,d=this._box.borderLeft+this._box.borderRight,h=this._box.borderTop+this._box.borderBottom;return{tabBar:o,x:i,y:s,top:a,left:l,right:n.width-d-(l+c),bottom:n.height-h-(a+u),width:c,height:u}}init(){super.init();for(const e of this)this.attachWidget(e);for(const e of this.handles())this.parent.node.appendChild(e);this.parent.fit()}attachWidget(e){this.parent.node!==e.node.parentNode&&(this._items.set(e,new me(e)),this.parent.isAttached&&B.sendMessage(e,pe.Msg.BeforeAttach),this.parent.node.appendChild(e.node),this.parent.isAttached&&B.sendMessage(e,pe.Msg.AfterAttach))}detachWidget(e){if(this.parent.node!==e.node.parentNode)return;this.parent.isAttached&&B.sendMessage(e,pe.Msg.BeforeDetach),this.parent.node.removeChild(e.node),this.parent.isAttached&&B.sendMessage(e,pe.Msg.AfterDetach);let t=this._items.get(e);t&&(this._items.delete(e),t.dispose())}onBeforeShow(e){super.onBeforeShow(e),this.parent.update()}onBeforeAttach(e){super.onBeforeAttach(e),this.parent.fit()}onChildShown(e){this.parent.fit()}onChildHidden(e){this.parent.fit()}onResize(e){this.parent.isVisible&&this._update(e.width,e.height)}onUpdateRequest(e){this.parent.isVisible&&this._update(-1,-1)}onFitRequest(e){this.parent.isAttached&&this._fit()}_removeWidget(e){if(!this._root)return;let t=this._root.findTabNode(e);if(!t)return;if(Ue.removeAria(e),t.tabBar.titles.length>1)return t.tabBar.removeTab(e.title),void(this._hiddenMode===pe.HiddenMode.Scale&&1==t.tabBar.titles.length&&(t.tabBar.titles[0].owner.hiddenMode=pe.HiddenMode.Display));if(t.tabBar.dispose(),this._root===t)return void(this._root=null);this._root.holdAllSizes();let n=t.parent;t.parent=null;let i=D.removeFirstOf(n.children,t),s=D.removeAt(n.handles,i);if(D.removeAt(n.sizers,i),s.parentNode&&s.parentNode.removeChild(s),n.children.length>1)return void n.syncHandles();let r=n.parent;n.parent=null;let o=n.children[0],a=n.handles[0];if(n.children.length=0,n.handles.length=0,n.sizers.length=0,a.parentNode&&a.parentNode.removeChild(a),this._root===n)return o.parent=null,void(this._root=o);let l=r,c=l.children.indexOf(n);if(o instanceof Ue.TabLayoutNode)return o.parent=l,void(l.children[c]=o);let u=D.removeAt(l.handles,c);D.removeAt(l.children,c),D.removeAt(l.sizers,c),u.parentNode&&u.parentNode.removeChild(u);for(let e=0,t=o.children.length;e=n.length)&&(i=0),{type:"tab-area",widgets:n,currentIndex:i}}(t,n):function(t,n){let i=t.orientation,s=[],r=[];for(let o=0,a=t.children.length;o{let l=s(i,n,r),c=t(e.sizes[a]),u=n.createHandle();o.children.push(l),o.handles.push(u),o.sizers.push(c),l.parent=o})),o.syncHandles(),o.normalizeSizes(),o}(r,o,a),l};class n{constructor(e){this.parent=null,this._top=0,this._left=0,this._width=0,this._height=0;let t=new de,n=new de;t.stretch=0,n.stretch=1,this.tabBar=e,this.sizers=[t,n]}get top(){return this._top}get left(){return this._left}get width(){return this._width}get height(){return this._height}*iterAllWidgets(){yield this.tabBar,yield*this.iterUserWidgets()}*iterUserWidgets(){for(const e of this.tabBar.titles)yield e.owner}*iterSelectedWidgets(){let e=this.tabBar.currentTitle;e&&(yield e.owner)}*iterTabBars(){yield this.tabBar}*iterHandles(){}findTabNode(e){return-1!==this.tabBar.titles.indexOf(e.title)?this:null}findSplitNode(e){return null}findFirstTabNode(){return this}hitTestTabNodes(e,t){return e=this._left+this._width||t=this._top+this._height?null:this}createConfig(){return{type:"tab-area",widgets:this.tabBar.titles.map((e=>e.owner)),currentIndex:this.tabBar.currentIndex}}holdAllSizes(){}fit(e,t){let n=0,i=0,s=t.get(this.tabBar),r=this.tabBar.currentTitle,o=r?t.get(r.owner):void 0,[a,l]=this.sizers;return s&&s.fit(),o&&o.fit(),s&&!s.isHidden?(n=Math.max(n,s.minWidth),i+=s.minHeight,a.minSize=s.minHeight,a.maxSize=s.maxHeight):(a.minSize=0,a.maxSize=0),o&&!o.isHidden?(n=Math.max(n,o.minWidth),i+=o.minHeight,l.minSize=o.minHeight,l.maxSize=1/0):(l.minSize=0,l.maxSize=1/0),{minWidth:n,minHeight:i,maxWidth:1/0,maxHeight:1/0}}update(e,t,n,i,s,r){this._top=t,this._left=e,this._width=n,this._height=i;let o=r.get(this.tabBar),a=this.tabBar.currentTitle,l=a?r.get(a.owner):void 0;if(ie.calc(this.sizers,i),o&&!o.isHidden){let i=this.sizers[0].size;o.update(e,t,n,i),t+=i}if(l&&!l.isHidden){let i=this.sizers[1].size;l.update(e,t,n,i)}}}e.TabLayoutNode=n;class i{constructor(e){this.parent=null,this.normalized=!1,this.children=[],this.sizers=[],this.handles=[],this.orientation=e}*iterAllWidgets(){for(const e of this.children)yield*e.iterAllWidgets()}*iterUserWidgets(){for(const e of this.children)yield*e.iterUserWidgets()}*iterSelectedWidgets(){for(const e of this.children)yield*e.iterSelectedWidgets()}*iterTabBars(){for(const e of this.children)yield*e.iterTabBars()}*iterHandles(){yield*this.handles;for(const e of this.children)yield*e.iterHandles()}findTabNode(e){for(let t=0,n=this.children.length;te.createConfig())),sizes:t}}syncHandles(){this.handles.forEach(((e,t)=>{e.setAttribute("data-orientation",this.orientation),t===this.handles.length-1?e.classList.add("lm-mod-hidden"):e.classList.remove("lm-mod-hidden")}))}holdSizes(){for(const e of this.sizers)e.sizeHint=e.size}holdAllSizes(){for(const e of this.children)e.holdAllSizes();this.holdSizes()}normalizeSizes(){let e=this.sizers.length;if(0===e)return;this.holdSizes();let t=this.sizers.reduce(((e,t)=>e+t.sizeHint),0);if(0===t)for(const t of this.sizers)t.size=t.sizeHint=1/e;else for(const e of this.sizers)e.size=e.sizeHint/=t;this.normalized=!0}createNormalizedSizes(){let e=this.sizers.length;if(0===e)return[];let t=this.sizers.map((e=>e.size)),n=t.reduce(((e,t)=>e+t),0);if(0===n)for(let n=t.length-1;n>-1;n--)t[n]=1/e;else for(let e=t.length-1;e>-1;e--)t[e]/=n;return t}fit(e,t){let n="horizontal"===this.orientation,i=Math.max(0,this.children.length-1)*e,s=n?i:0,r=n?0:i;for(let i=0,o=this.children.length;ithis._createTabBar(),createHandle:()=>this._createHandle()};this.layout=new Ze({document:this._document,renderer:t,spacing:e.spacing,hiddenMode:e.hiddenMode}),this.overlay=e.overlay||new Qe.Overlay,this.node.appendChild(this.overlay.node)}dispose(){this._releaseMouse(),this.overlay.hide(0),this._drag&&this._drag.dispose(),super.dispose()}get hiddenMode(){return this.layout.hiddenMode}set hiddenMode(e){this.layout.hiddenMode=e}get layoutModified(){return this._layoutModified}get addRequested(){return this._addRequested}get renderer(){return this.layout.renderer}get spacing(){return this.layout.spacing}set spacing(e){this.layout.spacing=e}get mode(){return this._mode}set mode(e){if(this._mode===e)return;this._mode=e,this.dataset.mode=e;let t=this.layout;switch(e){case"multiple-document":for(const e of t.tabBars())e.show();break;case"single-document":t.restoreLayout(qe.createSingleDocumentConfig(this));break;default:throw"unreachable"}B.postMessage(this,qe.LayoutModified)}get tabsMovable(){return this._tabsMovable}set tabsMovable(e){this._tabsMovable=e;for(const t of this.tabBars())t.tabsMovable=e}get tabsConstrained(){return this._tabsConstrained}set tabsConstrained(e){this._tabsConstrained=e}get addButtonEnabled(){return this._addButtonEnabled}set addButtonEnabled(e){this._addButtonEnabled=e;for(const t of this.tabBars())t.addButtonEnabled=e}get isEmpty(){return this.layout.isEmpty}*widgets(){yield*this.layout.widgets()}*selectedWidgets(){yield*this.layout.selectedWidgets()}*tabBars(){yield*this.layout.tabBars()}*handles(){yield*this.layout.handles()}selectWidget(e){let t=A(this.tabBars(),(t=>-1!==t.titles.indexOf(e.title)));if(!t)throw new Error("Widget is not contained in the dock panel.");t.currentTitle=e.title}activateWidget(e){this.selectWidget(e),e.activate()}saveLayout(){return this.layout.saveLayout()}restoreLayout(e){this._mode="multiple-document",this.layout.restoreLayout(e),(F.IS_EDGE||F.IS_IE)&&B.flush(),B.postMessage(this,qe.LayoutModified)}addWidget(e,t={}){"single-document"===this._mode?this.layout.addWidget(e):this.layout.addWidget(e,t),B.postMessage(this,qe.LayoutModified)}processMessage(e){"layout-modified"===e.type?this._layoutModified.emit(void 0):super.processMessage(e)}handleEvent(e){switch(e.type){case"lm-dragenter":this._evtDragEnter(e);break;case"lm-dragleave":this._evtDragLeave(e);break;case"lm-dragover":this._evtDragOver(e);break;case"lm-drop":this._evtDrop(e);break;case"pointerdown":this._evtPointerDown(e);break;case"pointermove":this._evtPointerMove(e);break;case"pointerup":this._evtPointerUp(e);break;case"keydown":this._evtKeyDown(e);break;case"contextmenu":e.preventDefault(),e.stopPropagation()}}onBeforeAttach(e){this.node.addEventListener("lm-dragenter",this),this.node.addEventListener("lm-dragleave",this),this.node.addEventListener("lm-dragover",this),this.node.addEventListener("lm-drop",this),this.node.addEventListener("pointerdown",this)}onAfterDetach(e){this.node.removeEventListener("lm-dragenter",this),this.node.removeEventListener("lm-dragleave",this),this.node.removeEventListener("lm-dragover",this),this.node.removeEventListener("lm-drop",this),this.node.removeEventListener("pointerdown",this),this._releaseMouse()}onChildAdded(e){qe.isGeneratedTabBarProperty.get(e.child)||e.child.addClass("lm-DockPanel-widget")}onChildRemoved(e){qe.isGeneratedTabBarProperty.get(e.child)||(e.child.removeClass("lm-DockPanel-widget"),B.postMessage(this,qe.LayoutModified))}_evtDragEnter(e){e.mimeData.hasData("application/vnd.lumino.widget-factory")&&(e.preventDefault(),e.stopPropagation())}_evtDragLeave(e){e.preventDefault(),this._tabsConstrained&&e.source!==this||(e.stopPropagation(),this.overlay.hide(1))}_evtDragOver(e){e.preventDefault(),this._tabsConstrained&&e.source!==this||"invalid"===this._showOverlay(e.clientX,e.clientY)?e.dropAction="none":(e.stopPropagation(),e.dropAction=e.proposedAction)}_evtDrop(e){if(e.preventDefault(),this.overlay.hide(0),"none"===e.proposedAction)return void(e.dropAction="none");let{clientX:t,clientY:n}=e,{zone:i,target:s}=qe.findDropTarget(this,t,n,this._edges);if(this._tabsConstrained&&e.source!==this||"invalid"===i)return void(e.dropAction="none");let r=e.mimeData.getData("application/vnd.lumino.widget-factory");if("function"!=typeof r)return void(e.dropAction="none");let o=r();if(!(o instanceof pe))return void(e.dropAction="none");if(o.contains(this))return void(e.dropAction="none");let a=s?qe.getDropRef(s.tabBar):null;switch(i){case"root-all":this.addWidget(o);break;case"root-top":this.addWidget(o,{mode:"split-top"});break;case"root-left":this.addWidget(o,{mode:"split-left"});break;case"root-right":this.addWidget(o,{mode:"split-right"});break;case"root-bottom":this.addWidget(o,{mode:"split-bottom"});break;case"widget-all":case"widget-tab":this.addWidget(o,{mode:"tab-after",ref:a});break;case"widget-top":this.addWidget(o,{mode:"split-top",ref:a});break;case"widget-left":this.addWidget(o,{mode:"split-left",ref:a});break;case"widget-right":this.addWidget(o,{mode:"split-right",ref:a});break;case"widget-bottom":this.addWidget(o,{mode:"split-bottom",ref:a});break;default:throw"unreachable"}e.dropAction=e.proposedAction,e.stopPropagation(),this.activateWidget(o)}_evtKeyDown(e){e.preventDefault(),e.stopPropagation(),27===e.keyCode&&(this._releaseMouse(),B.postMessage(this,qe.LayoutModified))}_evtPointerDown(e){if(0!==e.button)return;let t=this.layout,n=e.target,i=A(t.handles(),(e=>e.contains(n)));if(!i)return;e.preventDefault(),e.stopPropagation(),this._document.addEventListener("keydown",this,!0),this._document.addEventListener("pointerup",this,!0),this._document.addEventListener("pointermove",this,!0),this._document.addEventListener("contextmenu",this,!0);let s=i.getBoundingClientRect(),r=e.clientX-s.left,o=e.clientY-s.top,a=window.getComputedStyle(i),l=G.overrideCursor(a.cursor,this._document);this._pressData={handle:i,deltaX:r,deltaY:o,override:l}}_evtPointerMove(e){if(!this._pressData)return;e.preventDefault(),e.stopPropagation();let t=this.node.getBoundingClientRect(),n=e.clientX-t.left-this._pressData.deltaX,i=e.clientY-t.top-this._pressData.deltaY;this.layout.moveHandle(this._pressData.handle,n,i)}_evtPointerUp(e){0===e.button&&(e.preventDefault(),e.stopPropagation(),this._releaseMouse(),B.postMessage(this,qe.LayoutModified))}_releaseMouse(){this._pressData&&(this._pressData.override.dispose(),this._pressData=null,this._document.removeEventListener("keydown",this,!0),this._document.removeEventListener("pointerup",this,!0),this._document.removeEventListener("pointermove",this,!0),this._document.removeEventListener("contextmenu",this,!0))}_showOverlay(e,t){let n,i,s,r,{zone:o,target:a}=qe.findDropTarget(this,e,t,this._edges);if("invalid"===o)return this.overlay.hide(100),o;let l=M.boxSizing(this.node),c=this.node.getBoundingClientRect();switch(o){case"root-all":n=l.paddingTop,i=l.paddingLeft,s=l.paddingRight,r=l.paddingBottom;break;case"root-top":n=l.paddingTop,i=l.paddingLeft,s=l.paddingRight,r=c.height*qe.GOLDEN_RATIO;break;case"root-left":n=l.paddingTop,i=l.paddingLeft,s=c.width*qe.GOLDEN_RATIO,r=l.paddingBottom;break;case"root-right":n=l.paddingTop,i=c.width*qe.GOLDEN_RATIO,s=l.paddingRight,r=l.paddingBottom;break;case"root-bottom":n=c.height*qe.GOLDEN_RATIO,i=l.paddingLeft,s=l.paddingRight,r=l.paddingBottom;break;case"widget-all":n=a.top,i=a.left,s=a.right,r=a.bottom;break;case"widget-top":n=a.top,i=a.left,s=a.right,r=a.bottom+a.height/2;break;case"widget-left":n=a.top,i=a.left,s=a.right+a.width/2,r=a.bottom;break;case"widget-right":n=a.top,i=a.left+a.width/2,s=a.right,r=a.bottom;break;case"widget-bottom":n=a.top+a.height/2,i=a.left,s=a.right,r=a.bottom;break;case"widget-tab":{const e=a.tabBar.node.getBoundingClientRect().height;n=a.top,i=a.left,s=a.right,r=a.bottom+a.height-e;break}default:throw"unreachable"}return this.overlay.show({top:n,left:i,right:s,bottom:r}),o}_createTabBar(){let e=this._renderer.createTabBar(this._document);return qe.isGeneratedTabBarProperty.set(e,!0),"single-document"===this._mode&&e.hide(),e.tabsMovable=this._tabsMovable,e.allowDeselect=!1,e.addButtonEnabled=this._addButtonEnabled,e.removeBehavior="select-previous-tab",e.insertBehavior="select-tab-if-needed",e.tabMoved.connect(this._onTabMoved,this),e.currentChanged.connect(this._onCurrentChanged,this),e.tabCloseRequested.connect(this._onTabCloseRequested,this),e.tabDetachRequested.connect(this._onTabDetachRequested,this),e.tabActivateRequested.connect(this._onTabActivateRequested,this),e.addRequested.connect(this._onTabAddRequested,this),e}_createHandle(){return this._renderer.createHandle()}_onTabMoved(){B.postMessage(this,qe.LayoutModified)}_onCurrentChanged(e,t){let{previousTitle:n,currentTitle:i}=t;n&&n.owner.hide(),i&&i.owner.show(),(F.IS_EDGE||F.IS_IE)&&B.flush(),B.postMessage(this,qe.LayoutModified)}_onTabAddRequested(e){this._addRequested.emit(e)}_onTabActivateRequested(e,t){t.title.owner.activate()}_onTabCloseRequested(e,t){t.title.owner.close()}_onTabDetachRequested(e,t){if(this._drag)return;e.releaseMouse();let{title:n,tab:i,clientX:s,clientY:r,offset:o}=t,a=new N.MimeData;a.setData("application/vnd.lumino.widget-factory",(()=>n.owner));let l=i.cloneNode(!0);o&&(l.style.top=`-${o.y}px`,l.style.left=`-${o.x}px`),this._drag=new G({document:this._document,mimeData:a,dragImage:l,proposedAction:"move",supportedActions:"move",source:this}),i.classList.add("lm-mod-hidden"),this._drag.start(s,r).then((()=>{this._drag=null,i.classList.remove("lm-mod-hidden")}))}}!function(e){e.Overlay=class{constructor(){this._timer=-1,this._hidden=!0,this.node=document.createElement("div"),this.node.classList.add("lm-DockPanel-overlay"),this.node.classList.add("lm-mod-hidden"),this.node.style.position="absolute",this.node.style.contain="strict"}show(e){let t=this.node.style;t.top=`${e.top}px`,t.left=`${e.left}px`,t.right=`${e.right}px`,t.bottom=`${e.bottom}px`,clearTimeout(this._timer),this._timer=-1,this._hidden&&(this._hidden=!1,this.node.classList.remove("lm-mod-hidden"))}hide(e){if(!this._hidden)return e<=0?(clearTimeout(this._timer),this._timer=-1,this._hidden=!0,void this.node.classList.add("lm-mod-hidden")):void(-1===this._timer&&(this._timer=window.setTimeout((()=>{this._timer=-1,this._hidden=!0,this.node.classList.add("lm-mod-hidden")}),e)))}};class t{createTabBar(e){let t=new Ne({document:e});return t.addClass("lm-DockPanel-tabBar"),t}createHandle(){let e=document.createElement("div");return e.className="lm-DockPanel-handle",e}}e.Renderer=t,e.defaultRenderer=new t}(Qe||(Qe={})),function(e){e.GOLDEN_RATIO=.618,e.DEFAULT_EDGES={top:12,right:40,bottom:40,left:40},e.LayoutModified=new q("layout-modified"),e.isGeneratedTabBarProperty=new W({name:"isGeneratedTabBar",create:()=>!1}),e.createSingleDocumentConfig=function(e){if(e.isEmpty)return{main:null};let t=Array.from(e.widgets()),n=e.selectedWidgets().next().value,i=n?t.indexOf(n):-1;return{main:{type:"tab-area",widgets:t,currentIndex:i}}},e.findDropTarget=function(e,t,n,i){if(!M.hitTest(e.node,t,n))return{zone:"invalid",target:null};let s=e.layout;if(s.isEmpty)return{zone:"root-all",target:null};if("multiple-document"===e.mode){let s=e.node.getBoundingClientRect(),r=t-s.left+1,o=n-s.top+1,a=s.right-t,l=s.bottom-n;switch(Math.min(o,a,l,r)){case o:if(od&&l>d&&a>h&&c>h)return{zone:"widget-all",target:r};switch(o/=d,a/=h,l/=d,c/=h,Math.min(o,a,l,c)){case o:u="widget-left";break;case a:u="widget-top";break;case l:u="widget-right";break;case c:u="widget-bottom";break;default:throw"unreachable"}return{zone:u,target:r}},e.getDropRef=function(e){return 0===e.titles.length?null:e.currentTitle?e.currentTitle.owner:e.titles[e.titles.length-1].owner}}(qe||(qe={}));class et extends fe{constructor(e={}){super(e),this._dirty=!1,this._rowSpacing=4,this._columnSpacing=4,this._items=[],this._rowStarts=[],this._columnStarts=[],this._rowSizers=[new de],this._columnSizers=[new de],this._box=null,void 0!==e.rowCount&&We.reallocSizers(this._rowSizers,e.rowCount),void 0!==e.columnCount&&We.reallocSizers(this._columnSizers,e.columnCount),void 0!==e.rowSpacing&&(this._rowSpacing=We.clampValue(e.rowSpacing)),void 0!==e.columnSpacing&&(this._columnSpacing=We.clampValue(e.columnSpacing))}dispose(){for(const e of this._items){let t=e.widget;e.dispose(),t.dispose()}this._box=null,this._items.length=0,this._rowStarts.length=0,this._rowSizers.length=0,this._columnStarts.length=0,this._columnSizers.length=0,super.dispose()}get rowCount(){return this._rowSizers.length}set rowCount(e){e!==this.rowCount&&(We.reallocSizers(this._rowSizers,e),this.parent&&this.parent.fit())}get columnCount(){return this._columnSizers.length}set columnCount(e){e!==this.columnCount&&(We.reallocSizers(this._columnSizers,e),this.parent&&this.parent.fit())}get rowSpacing(){return this._rowSpacing}set rowSpacing(e){e=We.clampValue(e),this._rowSpacing!==e&&(this._rowSpacing=e,this.parent&&this.parent.fit())}get columnSpacing(){return this._columnSpacing}set columnSpacing(e){e=We.clampValue(e),this._columnSpacing!==e&&(this._columnSpacing=e,this.parent&&this.parent.fit())}rowStretch(e){let t=this._rowSizers[e];return t?t.stretch:-1}setRowStretch(e,t){let n=this._rowSizers[e];n&&(t=We.clampValue(t),n.stretch!==t&&(n.stretch=t,this.parent&&this.parent.update()))}columnStretch(e){let t=this._columnSizers[e];return t?t.stretch:-1}setColumnStretch(e,t){let n=this._columnSizers[e];n&&(t=We.clampValue(t),n.stretch!==t&&(n.stretch=t,this.parent&&this.parent.update()))}*[Symbol.iterator](){for(const e of this._items)yield e.widget}addWidget(e){-1===D.findFirstIndex(this._items,(t=>t.widget===e))&&(this._items.push(new me(e)),this.parent&&this.attachWidget(e))}removeWidget(e){let t=D.findFirstIndex(this._items,(t=>t.widget===e));if(-1===t)return;let n=D.removeAt(this._items,t);this.parent&&this.detachWidget(e),n.dispose()}init(){super.init();for(const e of this)this.attachWidget(e)}attachWidget(e){this.parent.isAttached&&B.sendMessage(e,pe.Msg.BeforeAttach),this.parent.node.appendChild(e.node),this.parent.isAttached&&B.sendMessage(e,pe.Msg.AfterAttach),this.parent.fit()}detachWidget(e){this.parent.isAttached&&B.sendMessage(e,pe.Msg.BeforeDetach),this.parent.node.removeChild(e.node),this.parent.isAttached&&B.sendMessage(e,pe.Msg.AfterDetach),this.parent.fit()}onBeforeShow(e){super.onBeforeShow(e),this.parent.update()}onBeforeAttach(e){super.onBeforeAttach(e),this.parent.fit()}onChildShown(e){this.parent.fit()}onChildHidden(e){this.parent.fit()}onResize(e){this.parent.isVisible&&this._update(e.width,e.height)}onUpdateRequest(e){this.parent.isVisible&&this._update(-1,-1)}onFitRequest(e){this.parent.isAttached&&this._fit()}_fit(){for(let e=0,t=this.rowCount;e!e.isHidden));for(let t=0,n=e.length;t({row:0,column:0,rowSpan:1,columnSpan:1}),changed:function(e){e.parent&&e.parent.layout instanceof et&&e.parent.fit()}}),e.normalizeConfig=function(e){return{row:Math.max(0,Math.floor(e.row||0)),column:Math.max(0,Math.floor(e.column||0)),rowSpan:Math.max(1,Math.floor(e.rowSpan||0)),columnSpan:Math.max(1,Math.floor(e.columnSpan||0))}},e.clampValue=function(e){return Math.max(0,Math.floor(e))},e.rowSpanCmp=function(t,n){let i=e.cellConfigProperty.get(t.widget),s=e.cellConfigProperty.get(n.widget);return i.rowSpan-s.rowSpan},e.columnSpanCmp=function(t,n){let i=e.cellConfigProperty.get(t.widget),s=e.cellConfigProperty.get(n.widget);return i.columnSpan-s.columnSpan},e.reallocSizers=function(e,t){for(t=Math.max(1,Math.floor(t));e.lengtht&&(e.length=t)},e.distributeMin=function(e,t,n,i){if(n=i)return;let r=(i-s)/(n-t+1);for(let i=t;i<=n;++i)e[i].minSize+=r}}(We||(We={}));class tt extends pe{constructor(e={}){super({node:He.createNode()}),this._activeIndex=-1,this._tabFocusIndex=0,this._menus=[],this._childMenu=null,this._overflowMenu=null,this._menuItemSizes=[],this._overflowIndex=-1,this.addClass("lm-MenuBar"),this.setFlag(pe.Flag.DisallowLayout),this.renderer=e.renderer||tt.defaultRenderer,this._forceItemsPosition=e.forceItemsPosition||{forceX:!0,forceY:!0},this._overflowMenuOptions=e.overflowMenuOptions||{isVisible:!0}}dispose(){this._closeChildMenu(),this._menus.length=0,super.dispose()}get childMenu(){return this._childMenu}get overflowIndex(){return this._overflowIndex}get overflowMenu(){return this._overflowMenu}get contentNode(){return this.node.getElementsByClassName("lm-MenuBar-content")[0]}get activeMenu(){return this._menus[this._activeIndex]||null}set activeMenu(e){this.activeIndex=e?this._menus.indexOf(e):-1}get activeIndex(){return this._activeIndex}set activeIndex(e){(e<0||e>=this._menus.length)&&(e=-1),e>-1&&0===this._menus[e].items.length&&(e=-1),this._activeIndex!==e&&(this._activeIndex=e,this.update())}get menus(){return this._menus}openActiveMenu(){-1!==this._activeIndex&&(this._openChildMenu(),this._childMenu&&(this._childMenu.activeIndex=-1,this._childMenu.activateNextItem()))}addMenu(e,t=!0){this.insertMenu(this._menus.length,e,t)}insertMenu(e,t,n=!0){this._closeChildMenu();let i=this._menus.indexOf(t),s=Math.max(0,Math.min(e,this._menus.length));if(-1===i)return D.insert(this._menus,s,t),t.addClass("lm-MenuBar-menu"),t.aboutToClose.connect(this._onMenuAboutToClose,this),t.menuRequested.connect(this._onMenuMenuRequested,this),t.title.changed.connect(this._onTitleChanged,this),void(n&&this.update());s===this._menus.length&&s--,i!==s&&(D.move(this._menus,i,s),n&&this.update())}removeMenu(e,t=!0){this.removeMenuAt(this._menus.indexOf(e),t)}removeMenuAt(e,t=!0){this._closeChildMenu();let n=D.removeAt(this._menus,e);n&&(n.aboutToClose.disconnect(this._onMenuAboutToClose,this),n.menuRequested.disconnect(this._onMenuMenuRequested,this),n.title.changed.disconnect(this._onTitleChanged,this),n.removeClass("lm-MenuBar-menu"),t&&this.update())}clearMenus(){if(0!==this._menus.length){this._closeChildMenu();for(let e of this._menus)e.aboutToClose.disconnect(this._onMenuAboutToClose,this),e.menuRequested.disconnect(this._onMenuMenuRequested,this),e.title.changed.disconnect(this._onTitleChanged,this),e.removeClass("lm-MenuBar-menu");this._menus.length=0,this.update()}}handleEvent(e){switch(e.type){case"keydown":this._evtKeyDown(e);break;case"mousedown":this._evtMouseDown(e);break;case"mousemove":this._evtMouseMove(e);break;case"focusout":this._evtFocusOut(e);break;case"contextmenu":e.preventDefault(),e.stopPropagation()}}onBeforeAttach(e){this.node.addEventListener("keydown",this),this.node.addEventListener("mousedown",this),this.node.addEventListener("mousemove",this),this.node.addEventListener("focusout",this),this.node.addEventListener("contextmenu",this)}onAfterDetach(e){this.node.removeEventListener("keydown",this),this.node.removeEventListener("mousedown",this),this.node.removeEventListener("mousemove",this),this.node.removeEventListener("focusout",this),this.node.removeEventListener("contextmenu",this),this._closeChildMenu()}onActivateRequest(e){this.isAttached&&this._focusItemAt(0)}onResize(e){this.update(),super.onResize(e)}onUpdateRequest(e){var t;let n=this._menus,i=this.renderer,s=this._activeIndex,r=this._tabFocusIndex>=0&&this._tabFocusIndex-1?this._overflowIndex:n.length,a=0,l=!1;o=null!==this._overflowMenu?o-1:o;let c=new Array(o);for(let e=0;e{this._tabFocusIndex=e,this.activeIndex=e}}),a+=this._menuItemSizes[e],n[e].title.label===this._overflowMenuOptions.title&&(l=!0,o--);if(this._overflowMenuOptions.isVisible)if(this._overflowIndex>-1&&!l){if(null===this._overflowMenu){const e=null!==(t=this._overflowMenuOptions.title)&&void 0!==t?t:"...";this._overflowMenu=new Te({commands:new ae}),this._overflowMenu.title.label=e,this._overflowMenu.title.mnemonic=0,this.addMenu(this._overflowMenu,!1)}for(let e=n.length-2;e>=o;e--){const t=this.menus[e];t.title.mnemonic=0,this._overflowMenu.insertItem(0,{type:"submenu",submenu:t}),this.removeMenu(t,!1)}c[o]=i.renderItem({title:this._overflowMenu.title,active:o===s&&0!==n[o].items.length,tabbable:o===r,disabled:0===n[o].items.length,onfocus:()=>{this._tabFocusIndex=o,this.activeIndex=o}}),o++}else if(null!==this._overflowMenu){let e=this._overflowMenu.items,t=this.node.offsetWidth,s=this._overflowMenu.items.length;for(let l=0;lthis._menuItemSizes[s]){let t=e[0].submenu;this._overflowMenu.removeItemAt(0),this.insertMenu(o,t,!1),c[o]=i.renderItem({title:t.title,active:!1,tabbable:o===r,disabled:0===n[o].items.length,onfocus:()=>{this._tabFocusIndex=o,this.activeIndex=o}}),o++}}0===this._overflowMenu.items.length&&(this.removeMenu(this._overflowMenu,!1),c.pop(),this._overflowMenu=null,this._overflowIndex=-1)}te.render(c,this.contentNode),this._updateOverflowIndex()}_updateOverflowIndex(){if(!this._overflowMenuOptions.isVisible)return;const e=this.contentNode.childNodes;let t=this.node.offsetWidth,n=0,i=-1,s=e.length;if(0==this._menuItemSizes.length)for(let r=0;rt&&-1===i&&(i=r)}else for(let e=0;et){i=e;break}this._overflowIndex=i}_evtKeyDown(e){let t=e.keyCode;if(9===t)return void(this.activeIndex=-1);if(e.preventDefault(),e.stopPropagation(),13===t||32===t||38===t||40===t){if(this.activeIndex=this._tabFocusIndex,this.activeIndex!==this._tabFocusIndex)return;return void this.openActiveMenu()}if(27===t)return this._closeChildMenu(),void this._focusItemAt(this.activeIndex);if(37===t||39===t){let e=37===t?-1:1,n=this._tabFocusIndex+e,i=this._menus.length;for(let t=0;tM.hitTest(t,e.clientX,e.clientY)));if(-1!==t){if(0===e.button)if(this._childMenu)this._closeChildMenu(),this.activeIndex=t;else{e.preventDefault();const n=this._positionForMenu(t);Te.saveWindowData(),this.activeIndex=t,this._openChildMenu(n)}}else this._closeChildMenu()}_evtMouseMove(e){let t=D.findFirstIndex(this.contentNode.children,(t=>M.hitTest(t,e.clientX,e.clientY)));if(t===this._activeIndex)return;if(-1===t&&this._childMenu)return;const n=t>=0&&this._childMenu?this._positionForMenu(t):null;Te.saveWindowData(),this.activeIndex=t,n&&this._openChildMenu(n)}_positionForMenu(e){let t=this.contentNode.children[e],{left:n,bottom:i}=t.getBoundingClientRect();return{top:i,left:n}}_evtFocusOut(e){this._childMenu||this.node.contains(e.relatedTarget)||(this.activeIndex=-1)}_focusItemAt(e){const t=this.contentNode.childNodes[e];t&&t.focus()}_openChildMenu(e={}){let t=this.activeMenu;if(!t)return void this._closeChildMenu();let n=this._childMenu;if(n===t)return;this._childMenu=t,n?n.close():document.addEventListener("mousedown",this,!0),this._tabFocusIndex=this.activeIndex,B.sendMessage(this,pe.Msg.UpdateRequest);let{left:i,top:s}=e;void 0!==i&&void 0!==s||({left:i,top:s}=this._positionForMenu(this._activeIndex)),n||this.addClass("lm-mod-active"),t.items.length>0&&t.open(i,s,this._forceItemsPosition)}_closeChildMenu(){if(!this._childMenu)return;this.removeClass("lm-mod-active"),document.removeEventListener("mousedown",this,!0);let e=this._childMenu;this._childMenu=null,e.close(),this.activeIndex=-1}_onMenuAboutToClose(e){e===this._childMenu&&(this.removeClass("lm-mod-active"),document.removeEventListener("mousedown",this,!0),this._childMenu=null,this.activeIndex=-1)}_onMenuMenuRequested(e,t){if(e!==this._childMenu)return;let n=this._activeIndex,i=this._menus.length;switch(t){case"next":this.activeIndex=n===i-1?0:n+1;break;case"previous":this.activeIndex=0===n?i-1:n-1}this.openActiveMenu()}_onTitleChanged(){this.update()}}!function(e){class t{renderItem(e){let t=this.createItemClass(e),n=this.createItemDataset(e),i=this.createItemARIA(e);return ue.li({className:t,dataset:n,...e.disabled?{}:{tabindex:e.tabbable?"0":"-1"},onfocus:e.onfocus,...i},this.renderIcon(e),this.renderLabel(e))}renderIcon(e){let t=this.createIconClass(e);return ue.div({className:t},e.title.icon,e.title.iconLabel)}renderLabel(e){let t=this.formatLabel(e);return ue.div({className:"lm-MenuBar-itemLabel"},t)}createItemClass(e){let t="lm-MenuBar-item";return e.title.className&&(t+=` ${e.title.className}`),e.active&&!e.disabled&&(t+=" lm-mod-active"),t}createItemDataset(e){return e.title.dataset}createItemARIA(e){return{role:"menuitem","aria-haspopup":"true","aria-disabled":e.disabled?"true":"false"}}createIconClass(e){let t="lm-MenuBar-itemIcon",n=e.title.iconClass;return n?`${t} ${n}`:t}formatLabel(e){let{label:t,mnemonic:n}=e.title;if(n<0||n>=t.length)return t;let i=t.slice(0,n),s=t.slice(n+1),r=t[n];return[i,ue.span({className:"lm-MenuBar-itemMnemonic"},r),s]}}e.Renderer=t,e.defaultRenderer=new t}(tt||(tt={})),function(e){e.createNode=function(){let e=document.createElement("div"),t=document.createElement("ul");return t.className="lm-MenuBar-content",e.appendChild(t),t.setAttribute("role","menubar"),e},e.findMnemonic=function(e,t,n){let i=-1,s=-1,r=!1,o=t.toUpperCase();for(let t=0,a=e.length;t=0&&u1&&this.widgets.forEach((e=>{e.hiddenMode=this._hiddenMode})))}dispose(){for(const e of this._items)e.dispose();this._box=null,this._items.length=0,super.dispose()}attachWidget(e,t){this._hiddenMode===pe.HiddenMode.Scale&&this._items.length>0?(1===this._items.length&&(this.widgets[0].hiddenMode=pe.HiddenMode.Scale),t.hiddenMode=pe.HiddenMode.Scale):t.hiddenMode=pe.HiddenMode.Display,D.insert(this._items,e,new me(t)),this.parent.isAttached&&B.sendMessage(t,pe.Msg.BeforeAttach),this.parent.node.appendChild(t.node),this.parent.isAttached&&B.sendMessage(t,pe.Msg.AfterAttach),this.parent.fit()}moveWidget(e,t,n){D.move(this._items,e,t),this.parent.update()}detachWidget(e,t){let 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SERVICE_CONFIG_URL = 'api/config';\n/**\n * The namespace for ConfigSection statics.\n */\nvar ConfigSection;\n(function (ConfigSection) {\n /**\n * Create a config section.\n *\n * @returns A Promise that is fulfilled with the config section is loaded.\n */\n function create(options) {\n const section = new DefaultConfigSection(options);\n return section.load().then(() => {\n return section;\n });\n }\n ConfigSection.create = create;\n})(ConfigSection = exports.ConfigSection || (exports.ConfigSection = {}));\n/**\n * Implementation of the Configurable data section.\n */\nclass DefaultConfigSection {\n /**\n * Construct a new config section.\n */\n constructor(options) {\n var _a;\n this._url = 'unknown';\n const settings = (this.serverSettings =\n (_a = options.serverSettings) !== null && _a !== void 0 ? _a : __1.ServerConnection.makeSettings());\n this._url = coreutils_1.URLExt.join(settings.baseUrl, SERVICE_CONFIG_URL, encodeURIComponent(options.name));\n }\n /**\n * Get the data 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data = this._section.data;\n if (this._className && this._className in data) {\n return data[this._className];\n }\n return data;\n }\n}\nexports.ConfigWithDefaults = ConfigWithDefaults;\n//# sourceMappingURL=index.js.map","\"use strict\";\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\nvar __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {\n if (k2 === undefined) k2 = k;\n var desc = Object.getOwnPropertyDescriptor(m, k);\n if (!desc || (\"get\" in desc ? !m.__esModule : desc.writable || desc.configurable)) {\n desc = { enumerable: true, get: function() { return m[k]; } };\n }\n Object.defineProperty(o, k2, desc);\n}) : (function(o, m, k, k2) {\n if (k2 === undefined) k2 = k;\n o[k2] = m[k];\n}));\nvar __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {\n Object.defineProperty(o, \"default\", { enumerable: true, value: v });\n}) : function(o, v) {\n o[\"default\"] = v;\n});\nvar __importStar = (this && this.__importStar) || function (mod) {\n if (mod && mod.__esModule) return mod;\n var result = {};\n if (mod != null) for (var k in mod) if (k !== \"default\" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);\n __setModuleDefault(result, mod);\n return result;\n};\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.Drive = exports.ContentsManager = exports.Contents = void 0;\nconst coreutils_1 = require(\"@jupyterlab/coreutils\");\nconst signaling_1 = require(\"@lumino/signaling\");\nconst __1 = require(\"..\");\nconst validate = __importStar(require(\"./validate\"));\n/**\n * The url for the default drive service.\n */\nconst SERVICE_DRIVE_URL = 'api/contents';\n/**\n * The url for the file access.\n */\nconst FILES_URL = 'files';\n/**\n * A namespace for contents interfaces.\n */\nvar Contents;\n(function (Contents) {\n /**\n * Validates an IModel, throwing an error if it does not pass.\n */\n function validateContentsModel(contents) {\n validate.validateContentsModel(contents);\n }\n Contents.validateContentsModel = validateContentsModel;\n /**\n * Validates an ICheckpointModel, throwing an error if it does not pass.\n */\n function validateCheckpointModel(checkpoint) {\n validate.validateCheckpointModel(checkpoint);\n }\n Contents.validateCheckpointModel = validateCheckpointModel;\n})(Contents = exports.Contents || (exports.Contents = {}));\n/**\n * A contents manager that passes file operations to the server.\n * Multiple servers implementing the `IDrive` interface can be\n * attached to the contents manager, so that the same session can\n * perform file operations on multiple backends.\n *\n * This includes checkpointing with the normal file operations.\n */\nclass ContentsManager {\n /**\n * Construct a new contents manager object.\n *\n * @param options - The options used to initialize the object.\n */\n constructor(options = {}) {\n var _a, _b;\n this._isDisposed = false;\n this._additionalDrives = new Map();\n this._fileChanged = new signaling_1.Signal(this);\n const serverSettings = (this.serverSettings =\n (_a = options.serverSettings) !== null && _a !== void 0 ? _a : __1.ServerConnection.makeSettings());\n this._defaultDrive = (_b = options.defaultDrive) !== null && _b !== void 0 ? _b : new Drive({ serverSettings });\n this._defaultDrive.fileChanged.connect(this._onFileChanged, this);\n }\n /**\n * A signal emitted when a file operation takes place.\n */\n get fileChanged() {\n return this._fileChanged;\n }\n /**\n * Test whether the manager has been disposed.\n */\n get isDisposed() {\n return this._isDisposed;\n }\n /**\n * Dispose of the resources held by the manager.\n */\n dispose() {\n if (this.isDisposed) {\n return;\n }\n this._isDisposed = true;\n signaling_1.Signal.clearData(this);\n }\n /**\n * Add an `IDrive` to the manager.\n */\n addDrive(drive) {\n this._additionalDrives.set(drive.name, drive);\n drive.fileChanged.connect(this._onFileChanged, this);\n }\n /**\n * Given a path, get a shared model factory from the\n * relevant backend. Returns `null` if the backend\n * does not provide one.\n */\n getSharedModelFactory(path) {\n var _a;\n const [drive] = this._driveForPath(path);\n return (_a = drive === null || drive === void 0 ? void 0 : drive.sharedModelFactory) !== null && _a !== void 0 ? _a : null;\n }\n /**\n * Given a path of the form `drive:local/portion/of/it.txt`\n * get the local part of it.\n *\n * @param path: the path.\n *\n * @returns The local part of the path.\n */\n localPath(path) {\n const parts = path.split('/');\n const firstParts = parts[0].split(':');\n if (firstParts.length === 1 || !this._additionalDrives.has(firstParts[0])) {\n return coreutils_1.PathExt.removeSlash(path);\n }\n return coreutils_1.PathExt.join(firstParts.slice(1).join(':'), ...parts.slice(1));\n }\n /**\n * Normalize a global path. Reduces '..' and '.' parts, and removes\n * leading slashes from the local part of the path, while retaining\n * the drive name if it exists.\n *\n * @param path: the path.\n *\n * @returns The normalized path.\n */\n normalize(path) {\n const parts = path.split(':');\n if (parts.length === 1) {\n return coreutils_1.PathExt.normalize(path);\n }\n return `${parts[0]}:${coreutils_1.PathExt.normalize(parts.slice(1).join(':'))}`;\n }\n /**\n * Resolve a global path, starting from the root path. Behaves like\n * posix-path.resolve, with 3 differences:\n * - will never prepend cwd\n * - if root has a drive name, the result is prefixed with \":\"\n * - before adding drive name, leading slashes are removed\n *\n * @param path: the path.\n *\n * @returns The normalized path.\n */\n resolvePath(root, path) {\n const driveName = this.driveName(root);\n const localPath = this.localPath(root);\n const resolved = coreutils_1.PathExt.resolve('/', localPath, path);\n return driveName ? `${driveName}:${resolved}` : resolved;\n }\n /**\n * Given a path of the form `drive:local/portion/of/it.txt`\n * get the name of the drive. If the path is missing\n * a drive portion, returns an empty string.\n *\n * @param path: the path.\n *\n * @returns The drive name for the path, or the empty string.\n */\n driveName(path) {\n const parts = path.split('/');\n const firstParts = parts[0].split(':');\n if (firstParts.length === 1) {\n return '';\n }\n if (this._additionalDrives.has(firstParts[0])) {\n return firstParts[0];\n }\n return '';\n }\n /**\n * Get a file or directory.\n *\n * @param path: The path to the file.\n *\n * @param options: The options used to fetch the file.\n *\n * @returns A promise which resolves with the file content.\n */\n get(path, options) {\n const [drive, localPath] = this._driveForPath(path);\n return drive.get(localPath, options).then(contentsModel => {\n const listing = [];\n if (contentsModel.type === 'directory' && contentsModel.content) {\n for (const item of contentsModel.content) {\n listing.push({ ...item, path: this._toGlobalPath(drive, item.path) });\n }\n return {\n ...contentsModel,\n path: this._toGlobalPath(drive, localPath),\n content: listing,\n serverPath: contentsModel.path\n };\n }\n else {\n return {\n ...contentsModel,\n path: this._toGlobalPath(drive, localPath),\n serverPath: contentsModel.path\n };\n }\n });\n }\n /**\n * Get an encoded download url given a file path.\n *\n * @param path - An absolute POSIX file path on the server.\n *\n * #### Notes\n * It is expected that the path contains no relative paths.\n *\n * The returned URL may include a query parameter.\n */\n getDownloadUrl(path) {\n const [drive, localPath] = this._driveForPath(path);\n return drive.getDownloadUrl(localPath);\n }\n /**\n * Create a new untitled file or directory in the specified directory path.\n *\n * @param options: The options used to create the file.\n *\n * @returns A promise which resolves with the created file content when the\n * file is created.\n */\n newUntitled(options = {}) {\n if (options.path) {\n const globalPath = this.normalize(options.path);\n const [drive, localPath] = this._driveForPath(globalPath);\n return drive\n .newUntitled({ ...options, path: localPath })\n .then(contentsModel => {\n return {\n ...contentsModel,\n path: coreutils_1.PathExt.join(globalPath, contentsModel.name),\n serverPath: contentsModel.path\n };\n });\n }\n else {\n return this._defaultDrive.newUntitled(options);\n }\n }\n /**\n * Delete a file.\n *\n * @param path - The path to the file.\n *\n * @returns A promise which resolves when the file is deleted.\n */\n delete(path) {\n const [drive, localPath] = this._driveForPath(path);\n return drive.delete(localPath);\n }\n /**\n * Rename a file or directory.\n *\n * @param path - The original file path.\n *\n * @param newPath - The new file path.\n *\n * @returns A promise which resolves with the new file contents model when\n * the file is renamed.\n */\n rename(path, newPath) {\n const [drive1, path1] = this._driveForPath(path);\n const [drive2, path2] = this._driveForPath(newPath);\n if (drive1 !== drive2) {\n throw Error('ContentsManager: renaming files must occur within a Drive');\n }\n return drive1.rename(path1, path2).then(contentsModel => {\n return {\n ...contentsModel,\n path: this._toGlobalPath(drive1, path2),\n serverPath: contentsModel.path\n };\n });\n }\n /**\n * Save a file.\n *\n * @param path - The desired file path.\n *\n * @param options - Optional overrides to the model.\n *\n * @returns A promise which resolves with the file content model when the\n * file is saved.\n *\n * #### Notes\n * Ensure that `model.content` is populated for the file.\n */\n save(path, options = {}) {\n const globalPath = this.normalize(path);\n const [drive, localPath] = this._driveForPath(path);\n return drive\n .save(localPath, { ...options, path: localPath })\n .then(contentsModel => {\n return {\n ...contentsModel,\n path: globalPath,\n serverPath: contentsModel.path\n };\n });\n }\n /**\n * Copy a file into a given directory.\n *\n * @param path - The original file path.\n *\n * @param toDir - The destination directory path.\n *\n * @returns A promise which resolves with the new contents model when the\n * file is copied.\n *\n * #### Notes\n * The server will select the name of the copied file.\n */\n copy(fromFile, toDir) {\n const [drive1, path1] = this._driveForPath(fromFile);\n const [drive2, path2] = this._driveForPath(toDir);\n if (drive1 === drive2) {\n return drive1.copy(path1, path2).then(contentsModel => {\n return {\n ...contentsModel,\n path: this._toGlobalPath(drive1, contentsModel.path),\n serverPath: contentsModel.path\n };\n });\n }\n else {\n throw Error('Copying files between drives is not currently implemented');\n }\n }\n /**\n * Create a checkpoint for a file.\n *\n * @param path - The path of the file.\n *\n * @returns A promise which resolves with the new checkpoint model when the\n * checkpoint is created.\n */\n createCheckpoint(path) {\n const [drive, localPath] = this._driveForPath(path);\n return drive.createCheckpoint(localPath);\n }\n /**\n * List available checkpoints for a file.\n *\n * @param path - 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The inverse of `_driveForPath`.\n *\n * @param drive: an `IDrive`.\n *\n * @param localPath: the local path on the drive.\n *\n * @returns the fully qualified path.\n */\n _toGlobalPath(drive, localPath) {\n if (drive === this._defaultDrive) {\n return coreutils_1.PathExt.removeSlash(localPath);\n }\n else {\n return `${drive.name}:${coreutils_1.PathExt.removeSlash(localPath)}`;\n }\n }\n /**\n * Given a path, get the `IDrive to which it refers,\n * where the path satisfies the pattern\n * `'driveName:path/to/file'`. If there is no `driveName`\n * prepended to the path, it returns the default drive.\n *\n * @param path: a path to a file.\n *\n * @returns A tuple containing an `IDrive` object for the path,\n * and a local path for that drive.\n */\n _driveForPath(path) {\n const driveName = this.driveName(path);\n const localPath = this.localPath(path);\n if (driveName) {\n return [this._additionalDrives.get(driveName), localPath];\n }\n else {\n return [this._defaultDrive, localPath];\n }\n }\n /**\n * Respond to fileChanged signals from the drives attached to\n * the manager. This prepends the drive name to the path if necessary,\n * and then forwards the signal.\n */\n _onFileChanged(sender, args) {\n var _a, _b;\n if (sender === this._defaultDrive) {\n this._fileChanged.emit(args);\n }\n else {\n let newValue = null;\n let oldValue = null;\n if ((_a = args.newValue) === null || _a === void 0 ? void 0 : _a.path) {\n newValue = {\n ...args.newValue,\n path: this._toGlobalPath(sender, args.newValue.path)\n };\n }\n if ((_b = args.oldValue) === null || _b === void 0 ? void 0 : _b.path) {\n oldValue = {\n ...args.oldValue,\n path: this._toGlobalPath(sender, args.oldValue.path)\n };\n }\n this._fileChanged.emit({\n type: args.type,\n newValue,\n oldValue\n });\n }\n }\n}\nexports.ContentsManager = ContentsManager;\n/**\n * A default implementation for an `IDrive`, talking to the\n * server using the Jupyter REST API.\n */\nclass Drive {\n /**\n * Construct a new contents manager object.\n *\n * @param options - The options used to initialize the object.\n */\n constructor(options = {}) {\n var _a, _b, _c;\n this._isDisposed = false;\n this._fileChanged = new signaling_1.Signal(this);\n this.name = (_a = options.name) !== null && _a !== void 0 ? _a : 'Default';\n this._apiEndpoint = (_b = options.apiEndpoint) !== null && _b !== void 0 ? _b : SERVICE_DRIVE_URL;\n this.serverSettings =\n (_c = options.serverSettings) !== null && _c !== void 0 ? _c : __1.ServerConnection.makeSettings();\n }\n /**\n * A signal emitted when a file operation takes place.\n */\n get fileChanged() {\n return this._fileChanged;\n }\n /**\n * Test whether the manager has been disposed.\n */\n get isDisposed() {\n return this._isDisposed;\n }\n /**\n * Dispose of the resources held by the manager.\n */\n dispose() {\n if (this.isDisposed) {\n return;\n }\n this._isDisposed = true;\n signaling_1.Signal.clearData(this);\n }\n /**\n * Get a file or directory.\n *\n * @param localPath: The path to the file.\n *\n * @param options: The options used to fetch the file.\n *\n * @returns A promise which resolves with the file content.\n *\n * Uses the [Jupyter Notebook API](https://petstore.swagger.io/?url=https://raw.githubusercontent.com/jupyter-server/jupyter_server/main/jupyter_server/services/api/api.yaml#!/contents) and validates the response model.\n */\n async get(localPath, options) {\n let url = this._getUrl(localPath);\n if (options) {\n // The notebook type cannot take an format option.\n if (options.type === 'notebook') {\n delete options['format'];\n }\n const content = options.content ? '1' : '0';\n const params = { ...options, content };\n url += coreutils_1.URLExt.objectToQueryString(params);\n }\n const settings = this.serverSettings;\n const response = await __1.ServerConnection.makeRequest(url, {}, settings);\n if (response.status !== 200) {\n const err = await __1.ServerConnection.ResponseError.create(response);\n throw err;\n }\n const data = await response.json();\n validate.validateContentsModel(data);\n return data;\n }\n /**\n * Get an encoded download url given a file path.\n *\n * @param localPath - An absolute POSIX file path on the server.\n *\n * #### Notes\n * It is expected that the path contains no relative paths.\n *\n * The returned URL may include a query parameter.\n */\n getDownloadUrl(localPath) {\n const baseUrl = this.serverSettings.baseUrl;\n let url = coreutils_1.URLExt.join(baseUrl, FILES_URL, coreutils_1.URLExt.encodeParts(localPath));\n const xsrfTokenMatch = document.cookie.match('\\\\b_xsrf=([^;]*)\\\\b');\n if (xsrfTokenMatch) {\n const fullUrl = new URL(url);\n fullUrl.searchParams.append('_xsrf', xsrfTokenMatch[1]);\n url = fullUrl.toString();\n }\n return Promise.resolve(url);\n }\n /**\n * Create a new untitled file or directory in the specified directory path.\n *\n * @param options: The options used to create the file.\n *\n * @returns A promise which resolves with the created file content when the\n * file is created.\n *\n * #### Notes\n * Uses the [Jupyter Notebook API](https://petstore.swagger.io/?url=https://raw.githubusercontent.com/jupyter-server/jupyter_server/main/jupyter_server/services/api/api.yaml#!/contents) and validates the response model.\n */\n async newUntitled(options = {}) {\n var _a;\n let body = '{}';\n if (options) {\n if (options.ext) {\n options.ext = Private.normalizeExtension(options.ext);\n }\n body = JSON.stringify(options);\n }\n const settings = this.serverSettings;\n const url = this._getUrl((_a = options.path) !== null && _a !== void 0 ? _a : '');\n const init = {\n method: 'POST',\n body\n };\n const response = await __1.ServerConnection.makeRequest(url, init, settings);\n if (response.status !== 201) {\n const err = await __1.ServerConnection.ResponseError.create(response);\n throw err;\n }\n const data = await response.json();\n validate.validateContentsModel(data);\n this._fileChanged.emit({\n type: 'new',\n oldValue: null,\n newValue: data\n });\n return data;\n }\n /**\n * Delete a file.\n *\n * @param localPath - The path to the file.\n *\n * @returns A promise which resolves when the file is deleted.\n *\n * #### Notes\n * Uses the [Jupyter Notebook API](https://petstore.swagger.io/?url=https://raw.githubusercontent.com/jupyter-server/jupyter_server/main/jupyter_server/services/api/api.yaml#!/contents).\n */\n async delete(localPath) {\n const url = this._getUrl(localPath);\n const settings = this.serverSettings;\n const init = { method: 'DELETE' };\n const response = await __1.ServerConnection.makeRequest(url, init, settings);\n // TODO: update IPEP27 to specify errors more precisely, so\n // that error types can be detected here with certainty.\n if (response.status !== 204) {\n const err = await __1.ServerConnection.ResponseError.create(response);\n throw err;\n }\n this._fileChanged.emit({\n type: 'delete',\n oldValue: { path: localPath },\n newValue: null\n });\n }\n /**\n * Rename a file or directory.\n *\n * @param oldLocalPath - The original file path.\n *\n * @param newLocalPath - The new file path.\n *\n * @returns A promise which resolves with the new file contents model when\n * the file is renamed.\n *\n * #### Notes\n * Uses the [Jupyter Notebook API](https://petstore.swagger.io/?url=https://raw.githubusercontent.com/jupyter-server/jupyter_server/main/jupyter_server/services/api/api.yaml#!/contents) and validates the response model.\n */\n async rename(oldLocalPath, newLocalPath) {\n const settings = this.serverSettings;\n const url = this._getUrl(oldLocalPath);\n const init = {\n method: 'PATCH',\n body: JSON.stringify({ path: newLocalPath })\n };\n const response = await __1.ServerConnection.makeRequest(url, init, settings);\n if (response.status !== 200) {\n const err = await __1.ServerConnection.ResponseError.create(response);\n throw err;\n }\n const data = await response.json();\n validate.validateContentsModel(data);\n this._fileChanged.emit({\n type: 'rename',\n oldValue: { path: oldLocalPath },\n newValue: data\n });\n return data;\n }\n /**\n * Save a file.\n *\n * @param localPath - The desired file path.\n *\n * @param options - Optional overrides to the model.\n *\n * @returns A promise which resolves with the file content model when the\n * file is saved.\n *\n * #### Notes\n * Ensure that `model.content` is populated for the file.\n *\n * Uses the [Jupyter Notebook API](https://petstore.swagger.io/?url=https://raw.githubusercontent.com/jupyter-server/jupyter_server/main/jupyter_server/services/api/api.yaml#!/contents) and validates the response model.\n */\n async save(localPath, options = {}) {\n const settings = this.serverSettings;\n const url = this._getUrl(localPath);\n const init = {\n method: 'PUT',\n body: JSON.stringify(options)\n };\n const response = await __1.ServerConnection.makeRequest(url, init, settings);\n // will return 200 for an existing file and 201 for a new file\n if (response.status !== 200 && response.status !== 201) {\n const err = await __1.ServerConnection.ResponseError.create(response);\n throw err;\n }\n const data = await response.json();\n validate.validateContentsModel(data);\n this._fileChanged.emit({\n type: 'save',\n oldValue: null,\n newValue: data\n });\n return data;\n }\n /**\n * Copy a file into a given directory.\n *\n * @param localPath - The original file path.\n *\n * @param toDir - The destination directory path.\n *\n * @returns A promise which resolves with the new contents model when the\n * file is copied.\n *\n * #### Notes\n * The server will select the name of the copied file.\n *\n * Uses the [Jupyter Notebook API](https://petstore.swagger.io/?url=https://raw.githubusercontent.com/jupyter-server/jupyter_server/main/jupyter_server/services/api/api.yaml#!/contents) and validates the response model.\n */\n async copy(fromFile, toDir) {\n const settings = this.serverSettings;\n const url = this._getUrl(toDir);\n const init = {\n method: 'POST',\n body: JSON.stringify({ copy_from: fromFile })\n };\n const response = await __1.ServerConnection.makeRequest(url, init, settings);\n if (response.status !== 201) {\n const err = await __1.ServerConnection.ResponseError.create(response);\n throw err;\n }\n const data = await response.json();\n validate.validateContentsModel(data);\n this._fileChanged.emit({\n type: 'new',\n oldValue: null,\n newValue: data\n });\n return data;\n }\n /**\n * Create a checkpoint for a file.\n *\n * @param localPath - The path of the file.\n *\n * @returns A promise which resolves with the new checkpoint model when the\n * checkpoint is created.\n *\n * #### Notes\n * Uses the [Jupyter Notebook API](https://petstore.swagger.io/?url=https://raw.githubusercontent.com/jupyter-server/jupyter_server/main/jupyter_server/services/api/api.yaml#!/contents) and validates the response model.\n */\n async createCheckpoint(localPath) {\n const url = this._getUrl(localPath, 'checkpoints');\n const init = { method: 'POST' };\n const response = await __1.ServerConnection.makeRequest(url, init, this.serverSettings);\n if (response.status !== 201) {\n const err = await __1.ServerConnection.ResponseError.create(response);\n throw err;\n }\n const data = await response.json();\n validate.validateCheckpointModel(data);\n return data;\n }\n /**\n * List available checkpoints for a file.\n *\n * @param localPath - The path of the file.\n *\n * @returns A promise which resolves with a list of checkpoint models for\n * the file.\n *\n * #### Notes\n * Uses the [Jupyter Notebook API](https://petstore.swagger.io/?url=https://raw.githubusercontent.com/jupyter-server/jupyter_server/main/jupyter_server/services/api/api.yaml#!/contents) and validates the response model.\n */\n async listCheckpoints(localPath) {\n const url = this._getUrl(localPath, 'checkpoints');\n const response = await __1.ServerConnection.makeRequest(url, {}, this.serverSettings);\n if (response.status !== 200) {\n const err = await __1.ServerConnection.ResponseError.create(response);\n throw err;\n }\n const data = await response.json();\n if (!Array.isArray(data)) {\n throw new Error('Invalid Checkpoint list');\n }\n for (let i = 0; i < data.length; i++) {\n validate.validateCheckpointModel(data[i]);\n }\n return data;\n }\n /**\n * Restore a file to a known checkpoint state.\n *\n * @param localPath - The path of the file.\n *\n * @param checkpointID - The id of the checkpoint to restore.\n *\n * @returns A promise which resolves when the checkpoint is restored.\n *\n * #### Notes\n * Uses the [Jupyter Notebook API](https://petstore.swagger.io/?url=https://raw.githubusercontent.com/jupyter-server/jupyter_server/main/jupyter_server/services/api/api.yaml#!/contents).\n */\n async restoreCheckpoint(localPath, checkpointID) {\n const url = this._getUrl(localPath, 'checkpoints', checkpointID);\n const init = { method: 'POST' };\n const response = await __1.ServerConnection.makeRequest(url, init, this.serverSettings);\n if (response.status !== 204) {\n const err = await __1.ServerConnection.ResponseError.create(response);\n throw err;\n }\n }\n /**\n * Delete a checkpoint for a file.\n *\n * @param localPath - The path of the file.\n *\n * @param checkpointID - The id of the checkpoint to delete.\n *\n * @returns A promise which resolves when the checkpoint is deleted.\n *\n * #### Notes\n * Uses the [Jupyter Notebook API](https://petstore.swagger.io/?url=https://raw.githubusercontent.com/jupyter-server/jupyter_server/main/jupyter_server/services/api/api.yaml#!/contents).\n */\n async deleteCheckpoint(localPath, checkpointID) {\n const url = this._getUrl(localPath, 'checkpoints', checkpointID);\n const init = { method: 'DELETE' };\n const response = await __1.ServerConnection.makeRequest(url, init, this.serverSettings);\n if (response.status !== 204) {\n const err = await __1.ServerConnection.ResponseError.create(response);\n throw err;\n }\n }\n /**\n * Get a REST url for a file given a path.\n */\n _getUrl(...args) {\n const parts = args.map(path => coreutils_1.URLExt.encodeParts(path));\n const baseUrl = this.serverSettings.baseUrl;\n return coreutils_1.URLExt.join(baseUrl, this._apiEndpoint, ...parts);\n }\n}\nexports.Drive = Drive;\n/**\n * A namespace for module private data.\n */\nvar Private;\n(function (Private) {\n /**\n * Normalize a file extension to be of the type `'.foo'`.\n *\n * Adds a leading dot if not present and converts to lower case.\n */\n function normalizeExtension(extension) {\n if (extension.length > 0 && extension.indexOf('.') !== 0) {\n extension = `.${extension}`;\n }\n return extension;\n }\n Private.normalizeExtension = normalizeExtension;\n})(Private || (Private = {}));\n//# sourceMappingURL=index.js.map","\"use strict\";\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.validateCheckpointModel = exports.validateContentsModel = void 0;\nconst validate_1 = require(\"../validate\");\n/**\n * Validate an `Contents.IModel` object.\n */\nfunction validateContentsModel(model) {\n (0, validate_1.validateProperty)(model, 'name', 'string');\n (0, validate_1.validateProperty)(model, 'path', 'string');\n (0, validate_1.validateProperty)(model, 'type', 'string');\n (0, validate_1.validateProperty)(model, 'created', 'string');\n (0, validate_1.validateProperty)(model, 'last_modified', 'string');\n (0, validate_1.validateProperty)(model, 'mimetype', 'object');\n (0, validate_1.validateProperty)(model, 'content', 'object');\n (0, validate_1.validateProperty)(model, 'format', 'object');\n}\nexports.validateContentsModel = validateContentsModel;\n/**\n * Validate an `Contents.ICheckpointModel` object.\n */\nfunction validateCheckpointModel(model) {\n (0, validate_1.validateProperty)(model, 'id', 'string');\n (0, validate_1.validateProperty)(model, 'last_modified', 'string');\n}\nexports.validateCheckpointModel = validateCheckpointModel;\n//# sourceMappingURL=validate.js.map","\"use strict\";\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.EventManager = void 0;\nconst coreutils_1 = require(\"@jupyterlab/coreutils\");\nconst polling_1 = require(\"@lumino/polling\");\nconst signaling_1 = require(\"@lumino/signaling\");\nconst serverconnection_1 = require(\"../serverconnection\");\n/**\n * The url for the jupyter-server events service.\n */\nconst SERVICE_EVENTS_URL = 'api/events';\n/**\n * The events API service manager.\n */\nclass EventManager {\n /**\n * Create a new event manager.\n */\n constructor(options = {}) {\n var _a;\n this._socket = null;\n this.serverSettings =\n (_a = options.serverSettings) !== null && _a !== void 0 ? _a : serverconnection_1.ServerConnection.makeSettings();\n // If subscription fails, the poll attempts to reconnect and backs off.\n this._poll = new polling_1.Poll({ factory: () => this._subscribe() });\n this._stream = new signaling_1.Stream(this);\n // Subscribe to the events socket.\n void this._poll.start();\n }\n /**\n * Whether the event manager is disposed.\n */\n get isDisposed() {\n return this._poll.isDisposed;\n }\n /**\n * An event stream that emits and yields each new event.\n */\n get stream() {\n return this._stream;\n }\n /**\n * Dispose the event manager.\n */\n dispose() {\n if (this.isDisposed) {\n return;\n }\n // Clean up poll.\n this._poll.dispose();\n // Clean up socket.\n const socket = this._socket;\n if (socket) {\n this._socket = null;\n socket.onopen = () => undefined;\n socket.onerror = () => undefined;\n socket.onmessage = () => undefined;\n socket.onclose = () => undefined;\n socket.close();\n }\n // Clean up stream.\n signaling_1.Signal.clearData(this);\n this._stream.stop();\n }\n /**\n * Post an event request to be emitted by the event bus.\n */\n async emit(event) {\n const { serverSettings } = this;\n const { baseUrl, token } = serverSettings;\n const { makeRequest, ResponseError } = serverconnection_1.ServerConnection;\n const url = coreutils_1.URLExt.join(baseUrl, SERVICE_EVENTS_URL) +\n (token ? `?token=${token}` : '');\n const init = { body: JSON.stringify(event), method: 'POST' };\n const response = await makeRequest(url, init, serverSettings);\n if (response.status !== 204) {\n throw new ResponseError(response);\n }\n }\n /**\n * Subscribe to event bus emissions.\n */\n _subscribe() {\n return new Promise((_, reject) => {\n if (this.isDisposed) {\n return;\n }\n const { token, WebSocket, wsUrl } = this.serverSettings;\n const url = coreutils_1.URLExt.join(wsUrl, SERVICE_EVENTS_URL, 'subscribe') +\n (token ? `?token=${encodeURIComponent(token)}` : '');\n const socket = (this._socket = new WebSocket(url));\n const stream = this._stream;\n socket.onclose = () => reject(new Error('EventManager socket closed'));\n socket.onmessage = msg => msg.data && stream.emit(JSON.parse(msg.data));\n });\n }\n}\nexports.EventManager = EventManager;\n//# sourceMappingURL=index.js.map","\"use strict\";\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/**\n * @packageDocumentation\n * @module services\n */\nvar __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {\n if (k2 === undefined) k2 = k;\n var desc = Object.getOwnPropertyDescriptor(m, k);\n if (!desc || (\"get\" in desc ? !m.__esModule : desc.writable || desc.configurable)) {\n desc = { enumerable: true, get: function() { return m[k]; } };\n }\n Object.defineProperty(o, k2, desc);\n}) : (function(o, m, k, k2) {\n if (k2 === undefined) k2 = k;\n o[k2] = m[k];\n}));\nvar __exportStar = (this && this.__exportStar) || function(m, exports) {\n for (var p in m) if (p !== \"default\" && !Object.prototype.hasOwnProperty.call(exports, p)) __createBinding(exports, m, p);\n};\nObject.defineProperty(exports, \"__esModule\", { value: true });\n__exportStar(require(\"./basemanager\"), exports);\n__exportStar(require(\"./config\"), exports);\n__exportStar(require(\"./contents\"), exports);\n__exportStar(require(\"./event\"), exports);\n__exportStar(require(\"./kernel\"), exports);\n__exportStar(require(\"./kernelspec\"), exports);\n__exportStar(require(\"./manager\"), exports);\n__exportStar(require(\"./serverconnection\"), exports);\n__exportStar(require(\"./session\"), exports);\n__exportStar(require(\"./setting\"), exports);\n__exportStar(require(\"./terminal\"), exports);\n__exportStar(require(\"./user\"), exports);\n__exportStar(require(\"./workspace\"), exports);\n__exportStar(require(\"./nbconvert\"), exports);\n//# sourceMappingURL=index.js.map","\"use strict\";\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\nvar __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {\n if (k2 === undefined) k2 = k;\n var desc = Object.getOwnPropertyDescriptor(m, k);\n if (!desc || (\"get\" in desc ? !m.__esModule : desc.writable || desc.configurable)) {\n desc = { enumerable: true, get: function() { return m[k]; } };\n }\n Object.defineProperty(o, k2, desc);\n}) : (function(o, m, k, k2) {\n if (k2 === undefined) k2 = k;\n o[k2] = m[k];\n}));\nvar __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {\n Object.defineProperty(o, \"default\", { enumerable: true, value: v });\n}) : function(o, v) {\n o[\"default\"] = v;\n});\nvar __importStar = (this && this.__importStar) || function (mod) {\n if (mod && mod.__esModule) return mod;\n var result = {};\n if (mod != null) for (var k in mod) if (k !== \"default\" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);\n __setModuleDefault(result, mod);\n return result;\n};\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.CommHandler = void 0;\nconst disposable_1 = require(\"@lumino/disposable\");\nconst KernelMessage = __importStar(require(\"./messages\"));\n/**\n * Comm channel handler.\n */\nclass CommHandler extends disposable_1.DisposableDelegate {\n /**\n * Construct a new comm channel.\n */\n constructor(target, id, kernel, disposeCb) {\n super(disposeCb);\n this._target = '';\n this._id = '';\n this._id = id;\n this._target = target;\n this._kernel = kernel;\n }\n /**\n * The unique id for the comm channel.\n */\n get commId() {\n return this._id;\n }\n /**\n * The target name for the comm channel.\n */\n get targetName() {\n return this._target;\n }\n /**\n * Get the callback for a comm close event.\n *\n * #### Notes\n * This is called when the comm is closed from either the server or client.\n *\n * **See also:** [[ICommClose]], [[close]]\n */\n get onClose() {\n return this._onClose;\n }\n /**\n * Set the callback for a comm close event.\n *\n * #### Notes\n * This is called when the comm is closed from either the server or client. If\n * the function returns a promise, and the kernel was closed from the server,\n * kernel message processing will pause until the returned promise is\n * fulfilled.\n *\n * **See also:** [[close]]\n */\n set onClose(cb) {\n this._onClose = cb;\n }\n /**\n * Get the callback for a comm message received event.\n */\n get onMsg() {\n return this._onMsg;\n }\n /**\n * Set the callback for a comm message received event.\n *\n * #### Notes\n * This is called when a comm message is received. If the function returns a\n * promise, kernel message processing will pause until it is fulfilled.\n */\n set onMsg(cb) {\n this._onMsg = cb;\n }\n /**\n * Open a comm with optional data and metadata.\n *\n * #### Notes\n * This sends a `comm_open` message to the server.\n *\n * **See also:** [[ICommOpen]]\n */\n open(data, metadata, buffers = []) {\n if (this.isDisposed || this._kernel.isDisposed) {\n throw new Error('Cannot open');\n }\n const msg = KernelMessage.createMessage({\n msgType: 'comm_open',\n channel: 'shell',\n username: this._kernel.username,\n session: this._kernel.clientId,\n content: {\n comm_id: this._id,\n target_name: this._target,\n data: data !== null && data !== void 0 ? data : {}\n },\n metadata,\n buffers\n });\n return this._kernel.sendShellMessage(msg, false, true);\n }\n /**\n * Send a `comm_msg` message to the kernel.\n *\n * #### Notes\n * This is a no-op if the comm has been closed.\n *\n * **See also:** [[ICommMsg]]\n */\n send(data, metadata, buffers = [], disposeOnDone = true) {\n if (this.isDisposed || this._kernel.isDisposed) {\n throw new Error('Cannot send');\n }\n const msg = KernelMessage.createMessage({\n msgType: 'comm_msg',\n channel: 'shell',\n username: this._kernel.username,\n session: this._kernel.clientId,\n content: {\n comm_id: this._id,\n data: data\n },\n metadata,\n buffers\n });\n return this._kernel.sendShellMessage(msg, false, disposeOnDone);\n }\n /**\n * Close the comm.\n *\n * #### Notes\n * This will send a `comm_close` message to the kernel, and call the\n * `onClose` callback if set.\n *\n * This is a no-op if the comm is already closed.\n *\n * **See also:** [[ICommClose]], [[onClose]]\n */\n close(data, metadata, buffers = []) {\n if (this.isDisposed || this._kernel.isDisposed) {\n throw new Error('Cannot close');\n }\n const msg = KernelMessage.createMessage({\n msgType: 'comm_close',\n channel: 'shell',\n username: this._kernel.username,\n session: this._kernel.clientId,\n content: {\n comm_id: this._id,\n data: data !== null && data !== void 0 ? data : {}\n },\n metadata,\n buffers\n });\n const future = this._kernel.sendShellMessage(msg, false, true);\n const onClose = this._onClose;\n if (onClose) {\n const ioMsg = KernelMessage.createMessage({\n msgType: 'comm_close',\n channel: 'iopub',\n username: this._kernel.username,\n session: this._kernel.clientId,\n content: {\n comm_id: this._id,\n data: data !== null && data !== void 0 ? data : {}\n },\n metadata,\n buffers\n });\n // In the future, we may want to communicate back to the user the possible\n // promise returned from onClose.\n void onClose(ioMsg);\n }\n this.dispose();\n return future;\n }\n}\nexports.CommHandler = CommHandler;\n//# sourceMappingURL=comm.js.map","\"use strict\";\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\nvar __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {\n if (k2 === undefined) k2 = k;\n var desc = Object.getOwnPropertyDescriptor(m, k);\n if (!desc || (\"get\" in desc ? !m.__esModule : desc.writable || desc.configurable)) {\n desc = { enumerable: true, get: function() { return m[k]; } };\n }\n Object.defineProperty(o, k2, desc);\n}) : (function(o, m, k, k2) {\n if (k2 === undefined) k2 = k;\n o[k2] = m[k];\n}));\nvar __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {\n Object.defineProperty(o, \"default\", { enumerable: true, value: v });\n}) : function(o, v) {\n o[\"default\"] = v;\n});\nvar __importStar = (this && this.__importStar) || function (mod) {\n if (mod && mod.__esModule) return mod;\n var result = {};\n if (mod != null) for (var k in mod) if (k !== \"default\" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);\n __setModuleDefault(result, mod);\n return result;\n};\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.KernelConnection = void 0;\nconst coreutils_1 = require(\"@jupyterlab/coreutils\");\nconst coreutils_2 = require(\"@lumino/coreutils\");\nconst signaling_1 = require(\"@lumino/signaling\");\nconst __1 = require(\"..\");\nconst comm_1 = require(\"./comm\");\nconst KernelMessage = __importStar(require(\"./messages\"));\nconst future_1 = require(\"./future\");\nconst serialize_1 = require(\"./serialize\");\nconst validate = __importStar(require(\"./validate\"));\nconst kernelspec_1 = require(\"../kernelspec\");\nconst restapi = __importStar(require(\"./restapi\"));\nconst KERNEL_INFO_TIMEOUT = 3000;\nconst RESTARTING_KERNEL_SESSION = '_RESTARTING_';\nconst STARTING_KERNEL_SESSION = '';\n/**\n * Implementation of the Kernel object.\n *\n * #### Notes\n * Messages from the server are handled in the order they were received and\n * asynchronously. Any message handler can return a promise, and message\n * handling will pause until the promise is fulfilled.\n */\nclass KernelConnection {\n /**\n * Construct a kernel object.\n */\n constructor(options) {\n var _a, _b, _c, _d;\n /**\n * Create the kernel websocket connection and add socket status handlers.\n */\n this._createSocket = (useProtocols = true) => {\n this._errorIfDisposed();\n // Make sure the socket is clear\n this._clearSocket();\n // Update the connection status to reflect opening a new connection.\n this._updateConnectionStatus('connecting');\n const settings = this.serverSettings;\n const partialUrl = coreutils_1.URLExt.join(settings.wsUrl, restapi.KERNEL_SERVICE_URL, encodeURIComponent(this._id));\n // Strip any authentication from the display string.\n const display = partialUrl.replace(/^((?:\\w+:)?\\/\\/)(?:[^@\\/]+@)/, '$1');\n console.debug(`Starting WebSocket: ${display}`);\n let url = coreutils_1.URLExt.join(partialUrl, 'channels?session_id=' + encodeURIComponent(this._clientId));\n // If token authentication is in use.\n const token = settings.token;\n if (settings.appendToken && token !== '') {\n url = url + `&token=${encodeURIComponent(token)}`;\n }\n // Try opening the websocket with our list of subprotocols.\n // If the server doesn't handle subprotocols,\n // the accepted protocol will be ''.\n // But we cannot send '' as a subprotocol, so if connection fails,\n // reconnect without subprotocols.\n const supportedProtocols = useProtocols ? this._supportedProtocols : [];\n this._ws = new settings.WebSocket(url, supportedProtocols);\n // Ensure incoming binary messages are not Blobs\n this._ws.binaryType = 'arraybuffer';\n let alreadyCalledOnclose = false;\n const getKernelModel = async (evt) => {\n var _a, _b;\n if (this._isDisposed) {\n return;\n }\n this._reason = '';\n this._model = undefined;\n try {\n const model = await restapi.getKernelModel(this._id, settings);\n this._model = model;\n if ((model === null || model === void 0 ? void 0 : model.execution_state) === 'dead') {\n this._updateStatus('dead');\n }\n else {\n this._onWSClose(evt);\n }\n }\n catch (err) {\n // Try again, if there is a network failure\n // Handle network errors, as well as cases where we are on a\n // JupyterHub and the server is not running. JupyterHub returns a\n // 503 (<2.0) or 424 (>2.0) in that case.\n if (err instanceof __1.ServerConnection.NetworkError ||\n ((_a = err.response) === null || _a === void 0 ? void 0 : _a.status) === 503 ||\n ((_b = err.response) === null || _b === void 0 ? void 0 : _b.status) === 424) {\n const timeout = Private.getRandomIntInclusive(10, 30) * 1e3;\n setTimeout(getKernelModel, timeout, evt);\n }\n else {\n this._reason = 'Kernel died unexpectedly';\n this._updateStatus('dead');\n }\n }\n return;\n };\n const earlyClose = async (evt) => {\n // If the websocket was closed early, that could mean\n // that the kernel is actually dead. Try getting\n // information about the kernel from the API call,\n // if that fails, then assume the kernel is dead,\n // otherwise just follow the typical websocket closed\n // protocol.\n if (alreadyCalledOnclose) {\n return;\n }\n alreadyCalledOnclose = true;\n await getKernelModel(evt);\n return;\n };\n this._ws.onmessage = this._onWSMessage;\n this._ws.onopen = this._onWSOpen;\n this._ws.onclose = earlyClose;\n this._ws.onerror = earlyClose;\n };\n // Make websocket callbacks arrow functions so they bind `this`.\n /**\n * Handle a websocket open event.\n */\n this._onWSOpen = (evt) => {\n if (this._ws.protocol !== '' &&\n !this._supportedProtocols.includes(this._ws.protocol)) {\n console.log('Server selected unknown kernel wire protocol:', this._ws.protocol);\n this._updateStatus('dead');\n throw new Error(`Unknown kernel wire protocol: ${this._ws.protocol}`);\n }\n // Remember the kernel wire protocol selected by the server.\n this._selectedProtocol = this._ws.protocol;\n this._ws.onclose = this._onWSClose;\n this._ws.onerror = this._onWSClose;\n this._updateConnectionStatus('connected');\n };\n /**\n * Handle a websocket message, validating and routing appropriately.\n */\n this._onWSMessage = (evt) => {\n // Notify immediately if there is an error with the message.\n let msg;\n try {\n msg = (0, serialize_1.deserialize)(evt.data, this._ws.protocol);\n validate.validateMessage(msg);\n }\n catch (error) {\n error.message = `Kernel message validation error: ${error.message}`;\n // We throw the error so that it bubbles up to the top, and displays the right stack.\n throw error;\n }\n // Update the current kernel session id\n this._kernelSession = msg.header.session;\n // Handle the message asynchronously, in the order received.\n this._msgChain = this._msgChain\n .then(() => {\n // Return so that any promises from handling a message are fulfilled\n // before proceeding to the next message.\n return this._handleMessage(msg);\n })\n .catch(error => {\n // Log any errors in handling the message, thus resetting the _msgChain\n // promise so we can process more messages.\n // Ignore the \"Canceled\" errors that are thrown during kernel dispose.\n if (error.message.startsWith('Canceled future for ')) {\n console.error(error);\n }\n });\n // Emit the message receive signal\n this._anyMessage.emit({ msg, direction: 'recv' });\n };\n /**\n * Handle a websocket close event.\n */\n this._onWSClose = (evt) => {\n if (!this.isDisposed) {\n this._reconnect();\n }\n };\n this._id = '';\n this._name = '';\n this._status = 'unknown';\n this._connectionStatus = 'connecting';\n this._kernelSession = '';\n this._isDisposed = false;\n /**\n * Websocket to communicate with kernel.\n */\n this._ws = null;\n this._username = '';\n this._reconnectLimit = 7;\n this._reconnectAttempt = 0;\n this._reconnectTimeout = null;\n this._supportedProtocols = Object.values(KernelMessage.supportedKernelWebSocketProtocols);\n this._selectedProtocol = '';\n this._futures = new Map();\n this._comms = new Map();\n this._targetRegistry = Object.create(null);\n this._info = new coreutils_2.PromiseDelegate();\n this._pendingMessages = [];\n this._statusChanged = new signaling_1.Signal(this);\n this._connectionStatusChanged = new signaling_1.Signal(this);\n this._disposed = new signaling_1.Signal(this);\n this._iopubMessage = new signaling_1.Signal(this);\n this._anyMessage = new signaling_1.Signal(this);\n this._pendingInput = new signaling_1.Signal(this);\n this._unhandledMessage = new signaling_1.Signal(this);\n this._displayIdToParentIds = new Map();\n this._msgIdToDisplayIds = new Map();\n this._msgChain = Promise.resolve();\n this._hasPendingInput = false;\n this._reason = '';\n this._noOp = () => {\n /* no-op */\n };\n this._name = options.model.name;\n this._id = options.model.id;\n this.serverSettings =\n (_a = options.serverSettings) !== null && _a !== void 0 ? _a : __1.ServerConnection.makeSettings();\n this._clientId = (_b = options.clientId) !== null && _b !== void 0 ? _b : coreutils_2.UUID.uuid4();\n this._username = (_c = options.username) !== null && _c !== void 0 ? _c : '';\n this.handleComms = (_d = options.handleComms) !== null && _d !== void 0 ? _d : true;\n this._createSocket();\n }\n get disposed() {\n return this._disposed;\n }\n /**\n * A signal emitted when the kernel status changes.\n */\n get statusChanged() {\n return this._statusChanged;\n }\n /**\n * A signal emitted when the kernel status changes.\n */\n get connectionStatusChanged() {\n return this._connectionStatusChanged;\n }\n /**\n * A signal emitted for iopub kernel messages.\n *\n * #### Notes\n * This signal is emitted after the iopub message is handled asynchronously.\n */\n get iopubMessage() {\n return this._iopubMessage;\n }\n /**\n * A signal emitted for unhandled kernel message.\n *\n * #### Notes\n * This signal is emitted for a message that was not handled. It is emitted\n * during the asynchronous message handling code.\n */\n get unhandledMessage() {\n return this._unhandledMessage;\n }\n /**\n * The kernel model\n */\n get model() {\n return (this._model || {\n id: this.id,\n name: this.name,\n reason: this._reason\n });\n }\n /**\n * A signal emitted for any kernel message.\n *\n * #### Notes\n * This signal is emitted when a message is received, before it is handled\n * asynchronously.\n *\n * This message is emitted when a message is queued for sending (either in\n * the websocket buffer, or our own pending message buffer). The message may\n * actually be sent across the wire at a later time.\n *\n * The message emitted in this signal should not be modified in any way.\n */\n get anyMessage() {\n return this._anyMessage;\n }\n /**\n * A signal emitted when a kernel has pending inputs from the user.\n */\n get pendingInput() {\n return this._pendingInput;\n }\n /**\n * The id of the server-side kernel.\n */\n get id() {\n return this._id;\n }\n /**\n * The name of the server-side kernel.\n */\n get name() {\n return this._name;\n }\n /**\n * The client username.\n */\n get username() {\n return this._username;\n }\n /**\n * The client unique id.\n */\n get clientId() {\n return this._clientId;\n }\n /**\n * The current status of the kernel.\n */\n get status() {\n return this._status;\n }\n /**\n * The current connection status of the kernel connection.\n */\n get connectionStatus() {\n return this._connectionStatus;\n }\n /**\n * Test whether the kernel has been disposed.\n */\n get isDisposed() {\n return this._isDisposed;\n }\n /**\n * The cached kernel info.\n *\n * @returns A promise that resolves to the kernel info.\n */\n get info() {\n return this._info.promise;\n }\n /**\n * The kernel spec.\n *\n * @returns A promise that resolves to the kernel spec.\n */\n get spec() {\n if (this._specPromise) {\n return this._specPromise;\n }\n this._specPromise = kernelspec_1.KernelSpecAPI.getSpecs(this.serverSettings).then(specs => {\n return specs.kernelspecs[this._name];\n });\n return this._specPromise;\n }\n /**\n * Clone the current kernel with a new clientId.\n */\n clone(options = {}) {\n return new KernelConnection({\n model: this.model,\n username: this.username,\n serverSettings: this.serverSettings,\n // handleComms defaults to false since that is safer\n handleComms: false,\n ...options\n });\n }\n /**\n * Dispose of the resources held by the kernel.\n */\n dispose() {\n if (this.isDisposed) {\n return;\n }\n this._isDisposed = true;\n this._disposed.emit();\n this._updateConnectionStatus('disconnected');\n this._clearKernelState();\n this._pendingMessages = [];\n this._clearSocket();\n // Clear Lumino signals\n signaling_1.Signal.clearData(this);\n }\n /**\n * Send a shell message to the kernel.\n *\n * #### Notes\n * Send a message to the kernel's shell channel, yielding a future object\n * for accepting replies.\n *\n * If `expectReply` is given and `true`, the future is disposed when both a\n * shell reply and an idle status message are received. If `expectReply`\n * is not given or is `false`, the future is resolved when an idle status\n * message is received.\n * If `disposeOnDone` is not given or is `true`, the Future is disposed at this point.\n * If `disposeOnDone` is given and `false`, it is up to the caller to dispose of the Future.\n *\n * All replies are validated as valid kernel messages.\n *\n * If the kernel status is `dead`, this will throw an error.\n */\n sendShellMessage(msg, expectReply = false, disposeOnDone = true) {\n return this._sendKernelShellControl(future_1.KernelShellFutureHandler, msg, expectReply, disposeOnDone);\n }\n /**\n * Send a control message to the kernel.\n *\n * #### Notes\n * Send a message to the kernel's control channel, yielding a future object\n * for accepting replies.\n *\n * If `expectReply` is given and `true`, the future is disposed when both a\n * control reply and an idle status message are received. If `expectReply`\n * is not given or is `false`, the future is resolved when an idle status\n * message is received.\n * If `disposeOnDone` is not given or is `true`, the Future is disposed at this point.\n * If `disposeOnDone` is given and `false`, it is up to the caller to dispose of the Future.\n *\n * All replies are validated as valid kernel messages.\n *\n * If the kernel status is `dead`, this will throw an error.\n */\n sendControlMessage(msg, expectReply = false, disposeOnDone = true) {\n return this._sendKernelShellControl(future_1.KernelControlFutureHandler, msg, expectReply, disposeOnDone);\n }\n _sendKernelShellControl(ctor, msg, expectReply = false, disposeOnDone = true) {\n this._sendMessage(msg);\n this._anyMessage.emit({ msg, direction: 'send' });\n const future = new ctor(() => {\n const msgId = msg.header.msg_id;\n this._futures.delete(msgId);\n // Remove stored display id information.\n const displayIds = this._msgIdToDisplayIds.get(msgId);\n if (!displayIds) {\n return;\n }\n displayIds.forEach(displayId => {\n const msgIds = this._displayIdToParentIds.get(displayId);\n if (msgIds) {\n const idx = msgIds.indexOf(msgId);\n if (idx === -1) {\n return;\n }\n if (msgIds.length === 1) {\n this._displayIdToParentIds.delete(displayId);\n }\n else {\n msgIds.splice(idx, 1);\n this._displayIdToParentIds.set(displayId, msgIds);\n }\n }\n });\n this._msgIdToDisplayIds.delete(msgId);\n }, msg, expectReply, disposeOnDone, this);\n this._futures.set(msg.header.msg_id, future);\n return future;\n }\n /**\n * Send a message on the websocket.\n *\n * If queue is true, queue the message for later sending if we cannot send\n * now. Otherwise throw an error.\n *\n * #### Notes\n * As an exception to the queueing, if we are sending a kernel_info_request\n * message while we think the kernel is restarting, we send the message\n * immediately without queueing. This is so that we can trigger a message\n * back, which will then clear the kernel restarting state.\n */\n _sendMessage(msg, queue = true) {\n if (this.status === 'dead') {\n throw new Error('Kernel is dead');\n }\n // If we have a kernel_info_request and we are starting or restarting, send the\n // kernel_info_request immediately if we can, and if not throw an error so\n // we can retry later. On restarting we do this because we must get at least one message\n // from the kernel to reset the kernel session (thus clearing the restart\n // status sentinel).\n if ((this._kernelSession === STARTING_KERNEL_SESSION ||\n this._kernelSession === RESTARTING_KERNEL_SESSION) &&\n KernelMessage.isInfoRequestMsg(msg)) {\n if (this.connectionStatus === 'connected') {\n this._ws.send((0, serialize_1.serialize)(msg, this._ws.protocol));\n return;\n }\n else {\n throw new Error('Could not send message: status is not connected');\n }\n }\n // If there are pending messages, add to the queue so we keep messages in order\n if (queue && this._pendingMessages.length > 0) {\n this._pendingMessages.push(msg);\n return;\n }\n // Send if the ws allows it, otherwise queue the message.\n if (this.connectionStatus === 'connected' &&\n this._kernelSession !== RESTARTING_KERNEL_SESSION) {\n this._ws.send((0, serialize_1.serialize)(msg, this._ws.protocol));\n }\n else if (queue) {\n this._pendingMessages.push(msg);\n }\n else {\n throw new Error('Could not send message');\n }\n }\n /**\n * Interrupt a kernel.\n *\n * #### Notes\n * Uses the [Jupyter Notebook API](https://petstore.swagger.io/?url=https://raw.githubusercontent.com/jupyter-server/jupyter_server/main/jupyter_server/services/api/api.yaml#!/kernels).\n *\n * The promise is fulfilled on a valid response and rejected otherwise.\n *\n * It is assumed that the API call does not mutate the kernel id or name.\n *\n * The promise will be rejected if the kernel status is `Dead` or if the\n * request fails or the response is invalid.\n */\n async interrupt() {\n this.hasPendingInput = false;\n if (this.status === 'dead') {\n throw new Error('Kernel is dead');\n }\n return restapi.interruptKernel(this.id, this.serverSettings);\n }\n /**\n * Request a kernel restart.\n *\n * #### Notes\n * Uses the [Jupyter Notebook API](https://petstore.swagger.io/?url=https://raw.githubusercontent.com/jupyter-server/jupyter_server/main/jupyter_server/services/api/api.yaml#!/kernels)\n * and validates the response model.\n *\n * Any existing Future or Comm objects are cleared once the kernel has\n * actually be restarted.\n *\n * The promise is fulfilled on a valid server response (after the kernel restarts)\n * and rejected otherwise.\n *\n * It is assumed that the API call does not mutate the kernel id or name.\n *\n * The promise will be rejected if the request fails or the response is\n * invalid.\n */\n async restart() {\n if (this.status === 'dead') {\n throw new Error('Kernel is dead');\n }\n this._updateStatus('restarting');\n this._clearKernelState();\n this._kernelSession = RESTARTING_KERNEL_SESSION;\n await restapi.restartKernel(this.id, this.serverSettings);\n // Reconnect to the kernel to address cases where kernel ports\n // have changed during the restart.\n await this.reconnect();\n this.hasPendingInput = false;\n }\n /**\n * Reconnect to a kernel.\n *\n * #### Notes\n * This may try multiple times to reconnect to a kernel, and will sever any\n * existing connection.\n */\n reconnect() {\n this._errorIfDisposed();\n const result = new coreutils_2.PromiseDelegate();\n // Set up a listener for the connection status changing, which accepts or\n // rejects after the retries are done.\n const fulfill = (sender, status) => {\n if (status === 'connected') {\n result.resolve();\n this.connectionStatusChanged.disconnect(fulfill, this);\n }\n else if (status === 'disconnected') {\n result.reject(new Error('Kernel connection disconnected'));\n this.connectionStatusChanged.disconnect(fulfill, this);\n }\n };\n this.connectionStatusChanged.connect(fulfill, this);\n // Reset the reconnect limit so we start the connection attempts fresh\n this._reconnectAttempt = 0;\n // Start the reconnection process, which will also clear any existing\n // connection.\n this._reconnect();\n // Return the promise that should resolve on connection or reject if the\n // retries don't work.\n return result.promise;\n }\n /**\n * Shutdown a kernel.\n *\n * #### Notes\n * Uses the [Jupyter Notebook API](https://petstore.swagger.io/?url=https://raw.githubusercontent.com/jupyter-server/jupyter_server/main/jupyter_server/services/api/api.yaml#!/kernels).\n *\n * The promise is fulfilled on a valid response and rejected otherwise.\n *\n * On a valid response, disposes this kernel connection.\n *\n * If the kernel is already `dead`, disposes this kernel connection without\n * a server request.\n */\n async shutdown() {\n if (this.status !== 'dead') {\n await restapi.shutdownKernel(this.id, this.serverSettings);\n }\n this.handleShutdown();\n }\n /**\n * Handles a kernel shutdown.\n *\n * #### Notes\n * This method should be called if we know from outside information that a\n * kernel is dead (for example, we cannot find the kernel model on the\n * server).\n */\n handleShutdown() {\n this._updateStatus('dead');\n this.dispose();\n }\n /**\n * Send a `kernel_info_request` message.\n *\n * #### Notes\n * See [Messaging in Jupyter](https://jupyter-client.readthedocs.io/en/latest/messaging.html#kernel-info).\n *\n * Fulfills with the `kernel_info_response` content when the shell reply is\n * received and validated.\n */\n async requestKernelInfo() {\n const msg = KernelMessage.createMessage({\n msgType: 'kernel_info_request',\n channel: 'shell',\n username: this._username,\n session: this._clientId,\n content: {}\n });\n let reply;\n try {\n reply = (await Private.handleShellMessage(this, msg));\n }\n catch (e) {\n // If we rejected because the future was disposed, ignore and return.\n if (this.isDisposed) {\n return;\n }\n else {\n throw e;\n }\n }\n this._errorIfDisposed();\n if (!reply) {\n return;\n }\n // Kernels sometimes do not include a status field on kernel_info_reply\n // messages, so set a default for now.\n // See https://github.com/jupyterlab/jupyterlab/issues/6760\n if (reply.content.status === undefined) {\n reply.content.status = 'ok';\n }\n if (reply.content.status !== 'ok') {\n this._info.reject('Kernel info reply errored');\n return reply;\n }\n this._info.resolve(reply.content);\n this._kernelSession = reply.header.session;\n return reply;\n }\n /**\n * Send a `complete_request` message.\n *\n * #### Notes\n * See [Messaging in Jupyter](https://jupyter-client.readthedocs.io/en/latest/messaging.html#completion).\n *\n * Fulfills with the `complete_reply` content when the shell reply is\n * received and validated.\n */\n requestComplete(content) {\n const msg = KernelMessage.createMessage({\n msgType: 'complete_request',\n channel: 'shell',\n username: this._username,\n session: this._clientId,\n content\n });\n return Private.handleShellMessage(this, msg);\n }\n /**\n * Send an `inspect_request` message.\n *\n * #### Notes\n * See [Messaging in Jupyter](https://jupyter-client.readthedocs.io/en/latest/messaging.html#introspection).\n *\n * Fulfills with the `inspect_reply` content when the shell reply is\n * received and validated.\n */\n requestInspect(content) {\n const msg = KernelMessage.createMessage({\n msgType: 'inspect_request',\n channel: 'shell',\n username: this._username,\n session: this._clientId,\n content: content\n });\n return Private.handleShellMessage(this, msg);\n }\n /**\n * Send a `history_request` message.\n *\n * #### Notes\n * See [Messaging in Jupyter](https://jupyter-client.readthedocs.io/en/latest/messaging.html#history).\n *\n * Fulfills with the `history_reply` content when the shell reply is\n * received and validated.\n */\n requestHistory(content) {\n const msg = KernelMessage.createMessage({\n msgType: 'history_request',\n channel: 'shell',\n username: this._username,\n session: this._clientId,\n content\n });\n return Private.handleShellMessage(this, msg);\n }\n /**\n * Send an `execute_request` message.\n *\n * #### Notes\n * See [Messaging in Jupyter](https://jupyter-client.readthedocs.io/en/latest/messaging.html#execute).\n *\n * Future `onReply` is called with the `execute_reply` content when the\n * shell reply is received and validated. The future will resolve when\n * this message is received and the `idle` iopub status is received.\n * The future will also be disposed at this point unless `disposeOnDone`\n * is specified and `false`, in which case it is up to the caller to dispose\n * of the future.\n *\n * **See also:** [[IExecuteReply]]\n */\n requestExecute(content, disposeOnDone = true, metadata) {\n const defaults = {\n silent: false,\n store_history: true,\n user_expressions: {},\n allow_stdin: true,\n stop_on_error: false\n };\n const msg = KernelMessage.createMessage({\n msgType: 'execute_request',\n channel: 'shell',\n username: this._username,\n session: this._clientId,\n content: { ...defaults, ...content },\n metadata\n });\n return this.sendShellMessage(msg, true, disposeOnDone);\n }\n /**\n * Send an experimental `debug_request` message.\n *\n * @hidden\n *\n * #### Notes\n * Debug messages are experimental messages that are not in the official\n * kernel message specification. As such, this function is *NOT* considered\n * part of the public API, and may change without notice.\n */\n requestDebug(content, disposeOnDone = true) {\n const msg = KernelMessage.createMessage({\n msgType: 'debug_request',\n channel: 'control',\n username: this._username,\n session: this._clientId,\n content\n });\n return this.sendControlMessage(msg, true, disposeOnDone);\n }\n /**\n * Send an `is_complete_request` message.\n *\n * #### Notes\n * See [Messaging in Jupyter](https://jupyter-client.readthedocs.io/en/latest/messaging.html#code-completeness).\n *\n * Fulfills with the `is_complete_response` content when the shell reply is\n * received and validated.\n */\n requestIsComplete(content) {\n const msg = KernelMessage.createMessage({\n msgType: 'is_complete_request',\n channel: 'shell',\n username: this._username,\n session: this._clientId,\n content\n });\n return Private.handleShellMessage(this, msg);\n }\n /**\n * Send a `comm_info_request` message.\n *\n * #### Notes\n * Fulfills with the `comm_info_reply` content when the shell reply is\n * received and validated.\n */\n requestCommInfo(content) {\n const msg = KernelMessage.createMessage({\n msgType: 'comm_info_request',\n channel: 'shell',\n username: this._username,\n session: this._clientId,\n content\n });\n return Private.handleShellMessage(this, msg);\n }\n /**\n * Send an `input_reply` message.\n *\n * #### Notes\n * See [Messaging in Jupyter](https://jupyter-client.readthedocs.io/en/latest/messaging.html#messages-on-the-stdin-router-dealer-sockets).\n */\n sendInputReply(content, parent_header) {\n const msg = KernelMessage.createMessage({\n msgType: 'input_reply',\n channel: 'stdin',\n username: this._username,\n session: this._clientId,\n content\n });\n msg.parent_header = parent_header;\n this._sendMessage(msg);\n this._anyMessage.emit({ msg, direction: 'send' });\n this.hasPendingInput = false;\n }\n /**\n * Create a new comm.\n *\n * #### Notes\n * If a client-side comm already exists with the given commId, an error is thrown.\n * If the kernel does not handle comms, an error is thrown.\n */\n createComm(targetName, commId = coreutils_2.UUID.uuid4()) {\n if (!this.handleComms) {\n throw new Error('Comms are disabled on this kernel connection');\n }\n if (this._comms.has(commId)) {\n throw new Error('Comm is already created');\n }\n const comm = new comm_1.CommHandler(targetName, commId, this, () => {\n this._unregisterComm(commId);\n });\n this._comms.set(commId, comm);\n return comm;\n }\n /**\n * Check if a comm exists.\n */\n hasComm(commId) {\n return this._comms.has(commId);\n }\n /**\n * Register a comm target handler.\n *\n * @param targetName - The name of the comm target.\n *\n * @param callback - The callback invoked for a comm open message.\n *\n * @returns A disposable used to unregister the comm target.\n *\n * #### Notes\n * Only one comm target can be registered to a target name at a time, an\n * existing callback for the same target name will be overridden. A registered\n * comm target handler will take precedence over a comm which specifies a\n * `target_module`.\n *\n * If the callback returns a promise, kernel message processing will pause\n * until the returned promise is fulfilled.\n */\n registerCommTarget(targetName, callback) {\n if (!this.handleComms) {\n return;\n }\n this._targetRegistry[targetName] = callback;\n }\n /**\n * Remove a comm target handler.\n *\n * @param targetName - The name of the comm target to remove.\n *\n * @param callback - The callback to remove.\n *\n * #### Notes\n * The comm target is only removed if the callback argument matches.\n */\n removeCommTarget(targetName, callback) {\n if (!this.handleComms) {\n return;\n }\n if (!this.isDisposed && this._targetRegistry[targetName] === callback) {\n delete this._targetRegistry[targetName];\n }\n }\n /**\n * Register an IOPub message hook.\n *\n * @param msg_id - The parent_header message id the hook will intercept.\n *\n * @param hook - The callback invoked for the message.\n *\n * #### Notes\n * The IOPub hook system allows you to preempt the handlers for IOPub\n * messages that are responses to a given message id.\n *\n * The most recently registered hook is run first. A hook can return a\n * boolean or a promise to a boolean, in which case all kernel message\n * processing pauses until the promise is fulfilled. If a hook return value\n * resolves to false, any later hooks will not run and the function will\n * return a promise resolving to false. If a hook throws an error, the error\n * is logged to the console and the next hook is run. If a hook is\n * registered during the hook processing, it will not run until the next\n * message. If a hook is removed during the hook processing, it will be\n * deactivated immediately.\n *\n * See also [[IFuture.registerMessageHook]].\n */\n registerMessageHook(msgId, hook) {\n var _a;\n const future = (_a = this._futures) === null || _a === void 0 ? void 0 : _a.get(msgId);\n if (future) {\n future.registerMessageHook(hook);\n }\n }\n /**\n * Remove an IOPub message hook.\n *\n * @param msg_id - The parent_header message id the hook intercepted.\n *\n * @param hook - The callback invoked for the message.\n *\n */\n removeMessageHook(msgId, hook) {\n var _a;\n const future = (_a = this._futures) === null || _a === void 0 ? void 0 : _a.get(msgId);\n if (future) {\n future.removeMessageHook(hook);\n }\n }\n /**\n * Remove the input guard, if any.\n */\n removeInputGuard() {\n this.hasPendingInput = false;\n }\n /**\n * Handle a message with a display id.\n *\n * @returns Whether the message was handled.\n */\n async _handleDisplayId(displayId, msg) {\n var _a, _b;\n const msgId = msg.parent_header.msg_id;\n let parentIds = this._displayIdToParentIds.get(displayId);\n if (parentIds) {\n // We've seen it before, update existing outputs with same display_id\n // by handling display_data as update_display_data.\n const updateMsg = {\n header: coreutils_2.JSONExt.deepCopy(msg.header),\n parent_header: coreutils_2.JSONExt.deepCopy(msg.parent_header),\n metadata: coreutils_2.JSONExt.deepCopy(msg.metadata),\n content: coreutils_2.JSONExt.deepCopy(msg.content),\n channel: msg.channel,\n buffers: msg.buffers ? msg.buffers.slice() : []\n };\n updateMsg.header.msg_type = 'update_display_data';\n await Promise.all(parentIds.map(async (parentId) => {\n const future = this._futures && this._futures.get(parentId);\n if (future) {\n await future.handleMsg(updateMsg);\n }\n }));\n }\n // We're done here if it's update_display.\n if (msg.header.msg_type === 'update_display_data') {\n // It's an update, don't proceed to the normal display.\n return true;\n }\n // Regular display_data with id, record it for future updating\n // in _displayIdToParentIds for future lookup.\n parentIds = (_a = this._displayIdToParentIds.get(displayId)) !== null && _a !== void 0 ? _a : [];\n if (parentIds.indexOf(msgId) === -1) {\n parentIds.push(msgId);\n }\n this._displayIdToParentIds.set(displayId, parentIds);\n // Add to our map of display ids for this message.\n const displayIds = (_b = this._msgIdToDisplayIds.get(msgId)) !== null && _b !== void 0 ? _b : [];\n if (displayIds.indexOf(msgId) === -1) {\n displayIds.push(msgId);\n }\n this._msgIdToDisplayIds.set(msgId, displayIds);\n // Let the message propagate to the intended recipient.\n return false;\n }\n /**\n * Forcefully clear the socket state.\n *\n * #### Notes\n * This will clear all socket state without calling any handlers and will\n * not update the connection status. If you call this method, you are\n * responsible for updating the connection status as needed and recreating\n * the socket if you plan to reconnect.\n */\n _clearSocket() {\n if (this._ws !== null) {\n // Clear the websocket event handlers and the socket itself.\n this._ws.onopen = this._noOp;\n this._ws.onclose = this._noOp;\n this._ws.onerror = this._noOp;\n this._ws.onmessage = this._noOp;\n this._ws.close();\n this._ws = null;\n }\n }\n /**\n * Handle status iopub messages from the kernel.\n */\n _updateStatus(status) {\n if (this._status === status || this._status === 'dead') {\n return;\n }\n this._status = status;\n Private.logKernelStatus(this);\n this._statusChanged.emit(status);\n if (status === 'dead') {\n this.dispose();\n }\n }\n /**\n * Send pending messages to the kernel.\n */\n _sendPending() {\n // We check to make sure we are still connected each time. For\n // example, if a websocket buffer overflows, it may close, so we should\n // stop sending messages.\n while (this.connectionStatus === 'connected' &&\n this._kernelSession !== RESTARTING_KERNEL_SESSION &&\n this._pendingMessages.length > 0) {\n this._sendMessage(this._pendingMessages[0], false);\n // We shift the message off the queue after the message is sent so that\n // if there is an exception, the message is still pending.\n this._pendingMessages.shift();\n }\n }\n /**\n * Clear the internal state.\n */\n _clearKernelState() {\n this._kernelSession = '';\n this._pendingMessages = [];\n this._futures.forEach(future => {\n future.dispose();\n });\n this._comms.forEach(comm => {\n comm.dispose();\n });\n this._msgChain = Promise.resolve();\n this._futures = new Map();\n this._comms = new Map();\n this._displayIdToParentIds.clear();\n this._msgIdToDisplayIds.clear();\n }\n /**\n * Check to make sure it is okay to proceed to handle a message.\n *\n * #### Notes\n * Because we handle messages asynchronously, before a message is handled the\n * kernel might be disposed or restarted (and have a different session id).\n * This function throws an error in each of these cases. This is meant to be\n * called at the start of an asynchronous message handler to cancel message\n * processing if the message no longer is valid.\n */\n _assertCurrentMessage(msg) {\n this._errorIfDisposed();\n if (msg.header.session !== this._kernelSession) {\n throw new Error(`Canceling handling of old message: ${msg.header.msg_type}`);\n }\n }\n /**\n * Handle a `comm_open` kernel message.\n */\n async _handleCommOpen(msg) {\n this._assertCurrentMessage(msg);\n const content = msg.content;\n const comm = new comm_1.CommHandler(content.target_name, content.comm_id, this, () => {\n this._unregisterComm(content.comm_id);\n });\n this._comms.set(content.comm_id, comm);\n try {\n const target = await Private.loadObject(content.target_name, content.target_module, this._targetRegistry);\n await target(comm, msg);\n }\n catch (e) {\n // Close the comm asynchronously. We cannot block message processing on\n // kernel messages to wait for another kernel message.\n comm.close();\n console.error('Exception opening new comm');\n throw e;\n }\n }\n /**\n * Handle 'comm_close' kernel message.\n */\n async _handleCommClose(msg) {\n this._assertCurrentMessage(msg);\n const content = msg.content;\n const comm = this._comms.get(content.comm_id);\n if (!comm) {\n console.error('Comm not found for comm id ' + content.comm_id);\n return;\n }\n this._unregisterComm(comm.commId);\n const onClose = comm.onClose;\n if (onClose) {\n // tslint:disable-next-line:await-promise\n await onClose(msg);\n }\n comm.dispose();\n }\n /**\n * Handle a 'comm_msg' kernel message.\n */\n async _handleCommMsg(msg) {\n this._assertCurrentMessage(msg);\n const content = msg.content;\n const comm = this._comms.get(content.comm_id);\n if (!comm) {\n return;\n }\n const onMsg = comm.onMsg;\n if (onMsg) {\n // tslint:disable-next-line:await-promise\n await onMsg(msg);\n }\n }\n /**\n * Unregister a comm instance.\n */\n _unregisterComm(commId) {\n this._comms.delete(commId);\n }\n /**\n * Handle connection status changes.\n */\n _updateConnectionStatus(connectionStatus) {\n if (this._connectionStatus === connectionStatus) {\n return;\n }\n this._connectionStatus = connectionStatus;\n // If we are not 'connecting', reset any reconnection attempts.\n if (connectionStatus !== 'connecting') {\n this._reconnectAttempt = 0;\n clearTimeout(this._reconnectTimeout);\n }\n if (this.status !== 'dead') {\n if (connectionStatus === 'connected') {\n let restarting = this._kernelSession === RESTARTING_KERNEL_SESSION;\n // Send a kernel info request to make sure we send at least one\n // message to get kernel status back. Always request kernel info\n // first, to get kernel status back and ensure iopub is fully\n // established. If we are restarting, this message will skip the queue\n // and be sent immediately.\n let p = this.requestKernelInfo();\n // Send any pending messages after the kernelInfo resolves, or after a\n // timeout as a failsafe.\n let sendPendingCalled = false;\n let sendPendingOnce = () => {\n if (sendPendingCalled) {\n return;\n }\n sendPendingCalled = true;\n if (restarting && this._kernelSession === RESTARTING_KERNEL_SESSION) {\n // We were restarting and a message didn't arrive to set the\n // session, but we just assume the restart succeeded and send any\n // pending messages.\n // FIXME: it would be better to retry the kernel_info_request here\n this._kernelSession = '';\n }\n clearTimeout(timeoutHandle);\n if (this._pendingMessages.length > 0) {\n this._sendPending();\n }\n };\n void p.then(sendPendingOnce);\n // FIXME: if sent while zmq subscriptions are not established,\n // kernelInfo may not resolve, so use a timeout to ensure we don't hang forever.\n // It may be preferable to retry kernelInfo rather than give up after one timeout.\n let timeoutHandle = setTimeout(sendPendingOnce, KERNEL_INFO_TIMEOUT);\n }\n else {\n // If the connection is down, then we do not know what is happening\n // with the kernel, so set the status to unknown.\n this._updateStatus('unknown');\n }\n }\n // Notify others that the connection status changed.\n this._connectionStatusChanged.emit(connectionStatus);\n }\n async _handleMessage(msg) {\n var _a, _b;\n let handled = false;\n // Check to see if we have a display_id we need to reroute.\n if (msg.parent_header &&\n msg.channel === 'iopub' &&\n (KernelMessage.isDisplayDataMsg(msg) ||\n KernelMessage.isUpdateDisplayDataMsg(msg) ||\n KernelMessage.isExecuteResultMsg(msg))) {\n // display_data messages may re-route based on their display_id.\n const transient = ((_a = msg.content.transient) !== null && _a !== void 0 ? _a : {});\n const displayId = transient['display_id'];\n if (displayId) {\n handled = await this._handleDisplayId(displayId, msg);\n // The await above may make this message out of date, so check again.\n this._assertCurrentMessage(msg);\n }\n }\n if (!handled && msg.parent_header) {\n const parentHeader = msg.parent_header;\n const future = (_b = this._futures) === null || _b === void 0 ? void 0 : _b.get(parentHeader.msg_id);\n if (future) {\n await future.handleMsg(msg);\n this._assertCurrentMessage(msg);\n }\n else {\n // If the message was sent by us and was not iopub, it is orphaned.\n const owned = parentHeader.session === this.clientId;\n if (msg.channel !== 'iopub' && owned) {\n this._unhandledMessage.emit(msg);\n }\n }\n }\n if (msg.channel === 'iopub') {\n switch (msg.header.msg_type) {\n case 'status': {\n // Updating the status is synchronous, and we call no async user code\n const executionState = msg.content\n .execution_state;\n if (executionState === 'restarting') {\n // The kernel has been auto-restarted by the server. After\n // processing for this message is completely done, we want to\n // handle this restart, so we don't await, but instead schedule\n // the work as a microtask (i.e., in a promise resolution). We\n // schedule this here so that it comes before any microtasks that\n // might be scheduled in the status signal emission below.\n void Promise.resolve().then(async () => {\n this._updateStatus('autorestarting');\n this._clearKernelState();\n // We must reconnect since the kernel connection information may have\n // changed, and the server only refreshes its zmq connection when a new\n // websocket is opened.\n await this.reconnect();\n });\n }\n this._updateStatus(executionState);\n break;\n }\n case 'comm_open':\n if (this.handleComms) {\n await this._handleCommOpen(msg);\n }\n break;\n case 'comm_msg':\n if (this.handleComms) {\n await this._handleCommMsg(msg);\n }\n break;\n case 'comm_close':\n if (this.handleComms) {\n await this._handleCommClose(msg);\n }\n break;\n default:\n break;\n }\n // If the message was a status dead message, we might have disposed ourselves.\n if (!this.isDisposed) {\n this._assertCurrentMessage(msg);\n // the message wouldn't be emitted if we were disposed anyway.\n this._iopubMessage.emit(msg);\n }\n }\n }\n /**\n * Attempt a connection if we have not exhausted connection attempts.\n */\n _reconnect() {\n this._errorIfDisposed();\n // Clear any existing reconnection attempt\n clearTimeout(this._reconnectTimeout);\n // Update the connection status and schedule a possible reconnection.\n if (this._reconnectAttempt < this._reconnectLimit) {\n this._updateConnectionStatus('connecting');\n // The first reconnect attempt should happen immediately, and subsequent\n // attempts should pick a random number in a growing range so that we\n // don't overload the server with synchronized reconnection attempts\n // across multiple kernels.\n const timeout = Private.getRandomIntInclusive(0, 1e3 * (Math.pow(2, this._reconnectAttempt) - 1));\n console.warn(`Connection lost, reconnecting in ${Math.floor(timeout / 1000)} seconds.`);\n // Try reconnection with subprotocols if the server had supported them.\n // Otherwise, try reconnection without subprotocols.\n const useProtocols = this._selectedProtocol !== '' ? true : false;\n this._reconnectTimeout = setTimeout(this._createSocket, timeout, useProtocols);\n this._reconnectAttempt += 1;\n }\n else {\n this._updateConnectionStatus('disconnected');\n }\n // Clear the websocket event handlers and the socket itself.\n this._clearSocket();\n }\n /**\n * Utility function to throw an error if this instance is disposed.\n */\n _errorIfDisposed() {\n if (this.isDisposed) {\n throw new Error('Kernel connection is disposed');\n }\n }\n get hasPendingInput() {\n return this._hasPendingInput;\n }\n set hasPendingInput(value) {\n this._hasPendingInput = value;\n this._pendingInput.emit(value);\n }\n}\nexports.KernelConnection = KernelConnection;\n/**\n * A private namespace for the Kernel.\n */\nvar Private;\n(function (Private) {\n /**\n * Log the current kernel status.\n */\n function logKernelStatus(kernel) {\n switch (kernel.status) {\n case 'idle':\n case 'busy':\n case 'unknown':\n return;\n default:\n console.debug(`Kernel: ${kernel.status} (${kernel.id})`);\n break;\n }\n }\n Private.logKernelStatus = logKernelStatus;\n /**\n * Send a kernel message to the kernel and resolve the reply message.\n */\n async function handleShellMessage(kernel, msg) {\n const future = kernel.sendShellMessage(msg, true);\n return future.done;\n }\n Private.handleShellMessage = handleShellMessage;\n /**\n * Try to load an object from a module or a registry.\n *\n * Try to load an object from a module asynchronously if a module\n * is specified, otherwise tries to load an object from the global\n * registry, if the global registry is provided.\n *\n * #### Notes\n * Loading a module uses requirejs.\n */\n function loadObject(name, moduleName, registry) {\n return new Promise((resolve, reject) => {\n // Try loading the module using require.js\n if (moduleName) {\n if (typeof requirejs === 'undefined') {\n throw new Error('requirejs not found');\n }\n requirejs([moduleName], (mod) => {\n if (mod[name] === void 0) {\n const msg = `Object '${name}' not found in module '${moduleName}'`;\n reject(new Error(msg));\n }\n else {\n resolve(mod[name]);\n }\n }, reject);\n }\n else {\n if (registry === null || registry === void 0 ? void 0 : registry[name]) {\n resolve(registry[name]);\n }\n else {\n reject(new Error(`Object '${name}' not found in registry`));\n }\n }\n });\n }\n Private.loadObject = loadObject;\n /**\n * Get a random integer between min and max, inclusive of both.\n *\n * #### Notes\n * From\n * https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/random#Getting_a_random_integer_between_two_values_inclusive\n *\n * From the MDN page: It might be tempting to use Math.round() to accomplish\n * that, but doing so would cause your random numbers to follow a non-uniform\n * distribution, which may not be acceptable for your needs.\n */\n function getRandomIntInclusive(min, max) {\n min = Math.ceil(min);\n max = Math.floor(max);\n return Math.floor(Math.random() * (max - min + 1)) + min;\n }\n Private.getRandomIntInclusive = getRandomIntInclusive;\n})(Private || (Private = {}));\n//# sourceMappingURL=default.js.map","\"use strict\";\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\nvar __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {\n if (k2 === undefined) k2 = k;\n var desc = Object.getOwnPropertyDescriptor(m, k);\n if (!desc || (\"get\" in desc ? !m.__esModule : desc.writable || desc.configurable)) {\n desc = { enumerable: true, get: function() { return m[k]; } };\n }\n Object.defineProperty(o, k2, desc);\n}) : (function(o, m, k, k2) {\n if (k2 === undefined) k2 = k;\n o[k2] = m[k];\n}));\nvar __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {\n Object.defineProperty(o, \"default\", { enumerable: true, value: v });\n}) : function(o, v) {\n o[\"default\"] = v;\n});\nvar __importStar = (this && this.__importStar) || function (mod) {\n if (mod && mod.__esModule) return mod;\n var result = {};\n if (mod != null) for (var k in mod) if (k !== \"default\" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);\n __setModuleDefault(result, mod);\n return result;\n};\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.KernelShellFutureHandler = exports.KernelControlFutureHandler = exports.KernelFutureHandler = void 0;\nconst coreutils_1 = require(\"@lumino/coreutils\");\nconst disposable_1 = require(\"@lumino/disposable\");\nconst KernelMessage = __importStar(require(\"./messages\"));\n/**\n * Implementation of a kernel future.\n *\n * If a reply is expected, the Future is considered done when both a `reply`\n * message and an `idle` iopub status message have been received. Otherwise, it\n * is considered done when the `idle` status is received.\n *\n */\nclass KernelFutureHandler extends disposable_1.DisposableDelegate {\n /**\n * Construct a new KernelFutureHandler.\n */\n constructor(cb, msg, expectReply, disposeOnDone, kernel) {\n super(cb);\n this._status = 0;\n this._stdin = Private.noOp;\n this._iopub = Private.noOp;\n this._reply = Private.noOp;\n this._done = new coreutils_1.PromiseDelegate();\n this._hooks = new Private.HookList();\n this._disposeOnDone = true;\n this._msg = msg;\n if (!expectReply) {\n this._setFlag(Private.KernelFutureFlag.GotReply);\n }\n this._disposeOnDone = disposeOnDone;\n this._kernel = kernel;\n }\n /**\n * Get the original outgoing message.\n */\n get msg() {\n return this._msg;\n }\n /**\n * A promise that resolves when the future is done.\n */\n get done() {\n return this._done.promise;\n }\n /**\n * Get the reply handler.\n */\n get onReply() {\n return this._reply;\n }\n /**\n * Set the reply handler.\n */\n set onReply(cb) {\n this._reply = cb;\n }\n /**\n * Get the iopub handler.\n */\n get onIOPub() {\n return this._iopub;\n }\n /**\n * Set the iopub handler.\n */\n set onIOPub(cb) {\n this._iopub = cb;\n }\n /**\n * Get the stdin handler.\n */\n get onStdin() {\n return this._stdin;\n }\n /**\n * Set the stdin handler.\n */\n set onStdin(cb) {\n this._stdin = cb;\n }\n /**\n * Register hook for IOPub messages.\n *\n * @param hook - The callback invoked for an IOPub message.\n *\n * #### Notes\n * The IOPub hook system allows you to preempt the handlers for IOPub\n * messages handled by the future.\n *\n * The most recently registered hook is run first. A hook can return a\n * boolean or a promise to a boolean, in which case all kernel message\n * processing pauses until the promise is fulfilled. If a hook return value\n * resolves to false, any later hooks will not run and the function will\n * return a promise resolving to false. If a hook throws an error, the error\n * is logged to the console and the next hook is run. If a hook is\n * registered during the hook processing, it will not run until the next\n * message. If a hook is removed during the hook processing, it will be\n * deactivated immediately.\n */\n registerMessageHook(hook) {\n if (this.isDisposed) {\n throw new Error('Kernel future is disposed');\n }\n this._hooks.add(hook);\n }\n /**\n * Remove a hook for IOPub messages.\n *\n * @param hook - The hook to remove.\n *\n * #### Notes\n * If a hook is removed during the hook processing, it will be deactivated immediately.\n */\n removeMessageHook(hook) {\n if (this.isDisposed) {\n return;\n }\n this._hooks.remove(hook);\n }\n /**\n * Send an `input_reply` message.\n */\n sendInputReply(content, parent_header) {\n this._kernel.sendInputReply(content, parent_header);\n }\n /**\n * Dispose and unregister the future.\n */\n dispose() {\n this._stdin = Private.noOp;\n this._iopub = Private.noOp;\n this._reply = Private.noOp;\n this._hooks = null;\n if (!this._testFlag(Private.KernelFutureFlag.IsDone)) {\n // TODO: Uncomment the following logging code, and check for any tests that trigger it.\n // let status = [];\n // if (!this._testFlag(Private.KernelFutureFlag.GotIdle)) {\n // status.push('idle');\n // }\n // if (!this._testFlag(Private.KernelFutureFlag.GotReply)) {\n // status.push('reply');\n // }\n // console.warn(\n // `*************** DISPOSED BEFORE DONE: K${this._kernel.id.slice(\n // 0,\n // 6\n // )} M${this._msg.header.msg_id.slice(0, 6)} missing ${status.join(' ')}`\n // );\n // Reject the `done` promise, but catch its error here in case no one else\n // is waiting for the promise to resolve. This prevents the error from\n // being displayed in the console, but does not prevent it from being\n // caught by a client who is waiting for it.\n this._done.promise.catch(() => {\n /* no-op */\n });\n this._done.reject(new Error(`Canceled future for ${this.msg.header.msg_type} message before replies were done`));\n }\n super.dispose();\n }\n /**\n * Handle an incoming kernel message.\n */\n async handleMsg(msg) {\n switch (msg.channel) {\n case 'control':\n case 'shell':\n if (msg.channel === this.msg.channel &&\n msg.parent_header.msg_id === this.msg.header.msg_id) {\n await this._handleReply(msg);\n }\n break;\n case 'stdin':\n await this._handleStdin(msg);\n break;\n case 'iopub':\n await this._handleIOPub(msg);\n break;\n default:\n break;\n }\n }\n async _handleReply(msg) {\n const reply = this._reply;\n if (reply) {\n // tslint:disable-next-line:await-promise\n await reply(msg);\n }\n this._replyMsg = msg;\n this._setFlag(Private.KernelFutureFlag.GotReply);\n if (this._testFlag(Private.KernelFutureFlag.GotIdle)) {\n this._handleDone();\n }\n }\n async _handleStdin(msg) {\n this._kernel.hasPendingInput = true;\n const stdin = this._stdin;\n if (stdin) {\n // tslint:disable-next-line:await-promise\n await stdin(msg);\n }\n }\n async _handleIOPub(msg) {\n const process = await this._hooks.process(msg);\n const iopub = this._iopub;\n if (process && iopub) {\n // tslint:disable-next-line:await-promise\n await iopub(msg);\n }\n if (KernelMessage.isStatusMsg(msg) &&\n msg.content.execution_state === 'idle') {\n this._setFlag(Private.KernelFutureFlag.GotIdle);\n if (this._testFlag(Private.KernelFutureFlag.GotReply)) {\n this._handleDone();\n }\n }\n }\n _handleDone() {\n if (this._testFlag(Private.KernelFutureFlag.IsDone)) {\n return;\n }\n this._setFlag(Private.KernelFutureFlag.IsDone);\n this._done.resolve(this._replyMsg);\n if (this._disposeOnDone) {\n this.dispose();\n }\n }\n /**\n * Test whether the given future flag is set.\n */\n _testFlag(flag) {\n // tslint:disable-next-line\n return (this._status & flag) !== 0;\n }\n /**\n * Set the given future flag.\n */\n _setFlag(flag) {\n // tslint:disable-next-line\n this._status |= flag;\n }\n}\nexports.KernelFutureHandler = KernelFutureHandler;\nclass KernelControlFutureHandler extends KernelFutureHandler {\n}\nexports.KernelControlFutureHandler = KernelControlFutureHandler;\nclass KernelShellFutureHandler extends KernelFutureHandler {\n}\nexports.KernelShellFutureHandler = KernelShellFutureHandler;\nvar Private;\n(function (Private) {\n /**\n * A no-op function.\n */\n Private.noOp = () => {\n /* no-op */\n };\n /**\n * Defer a computation.\n *\n * #### NOTES\n * We can't just use requestAnimationFrame since it is not available in node.\n * This implementation is from Phosphor:\n * https://github.com/phosphorjs/phosphor/blob/e88e4321289bb1198f3098e7bda40736501f2ed8/tests/test-messaging/src/index.spec.ts#L63\n */\n const defer = (() => {\n const ok = typeof requestAnimationFrame === 'function';\n return ok ? requestAnimationFrame : setImmediate;\n })();\n class HookList {\n constructor() {\n this._hooks = [];\n }\n /**\n * Register a hook.\n *\n * @param hook - The callback to register.\n */\n add(hook) {\n this.remove(hook);\n this._hooks.push(hook);\n }\n /**\n * Remove a hook, if it exists in the hook list.\n *\n * @param hook - The callback to remove.\n */\n remove(hook) {\n const index = this._hooks.indexOf(hook);\n if (index >= 0) {\n this._hooks[index] = null;\n this._scheduleCompact();\n }\n }\n /**\n * Process a message through the hooks.\n *\n * @returns a promise resolving to false if any hook resolved as false,\n * otherwise true\n *\n * #### Notes\n * The most recently registered hook is run first. A hook can return a\n * boolean or a promise to a boolean, in which case processing pauses until\n * the promise is fulfilled. If a hook return value resolves to false, any\n * later hooks will not run and the function will return a promise resolving\n * to false. If a hook throws an error, the error is logged to the console\n * and the next hook is run. If a hook is registered during the hook\n * processing, it will not run until the next message. If a hook is removed\n * during the hook processing, it will be deactivated immediately.\n */\n async process(msg) {\n // Wait until we can start a new process run.\n await this._processing;\n // Start the next process run.\n const processing = new coreutils_1.PromiseDelegate();\n this._processing = processing.promise;\n let continueHandling;\n // Call the end hook (most recently-added) first. Starting at the end also\n // guarantees that hooks added during the processing will not be run in\n // this process run.\n for (let i = this._hooks.length - 1; i >= 0; i--) {\n const hook = this._hooks[i];\n // If the hook has been removed, continue to the next one.\n if (hook === null) {\n continue;\n }\n // Execute the hook and log any errors.\n try {\n // tslint:disable-next-line:await-promise\n continueHandling = await hook(msg);\n }\n catch (err) {\n continueHandling = true;\n console.error(err);\n }\n // If the hook resolved to false, stop processing and return.\n if (continueHandling === false) {\n processing.resolve(undefined);\n return false;\n }\n }\n // All hooks returned true (or errored out), so return true.\n processing.resolve(undefined);\n return true;\n }\n /**\n * Schedule a cleanup of the list, removing any hooks that have been nulled out.\n */\n _scheduleCompact() {\n if (!this._compactScheduled) {\n this._compactScheduled = true;\n // Schedule a compaction in between processing runs. We do the\n // scheduling in an animation frame to rate-limit our compactions. If we\n // need to compact more frequently, we can change this to directly\n // schedule the compaction.\n defer(() => {\n this._processing = this._processing.then(() => {\n this._compactScheduled = false;\n this._compact();\n });\n });\n }\n }\n /**\n * Compact the list, removing any nulls.\n */\n _compact() {\n let numNulls = 0;\n for (let i = 0, len = this._hooks.length; i < len; i++) {\n const hook = this._hooks[i];\n if (this._hooks[i] === null) {\n numNulls++;\n }\n else {\n this._hooks[i - numNulls] = hook;\n }\n }\n this._hooks.length -= numNulls;\n }\n }\n Private.HookList = HookList;\n /**\n * Bit flags for the kernel future state.\n */\n let KernelFutureFlag;\n (function (KernelFutureFlag) {\n KernelFutureFlag[KernelFutureFlag[\"GotReply\"] = 1] = \"GotReply\";\n KernelFutureFlag[KernelFutureFlag[\"GotIdle\"] = 2] = \"GotIdle\";\n KernelFutureFlag[KernelFutureFlag[\"IsDone\"] = 4] = \"IsDone\";\n KernelFutureFlag[KernelFutureFlag[\"DisposeOnDone\"] = 8] = \"DisposeOnDone\";\n })(KernelFutureFlag = Private.KernelFutureFlag || (Private.KernelFutureFlag = {}));\n})(Private || (Private = {}));\n//# sourceMappingURL=future.js.map","\"use strict\";\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\nvar __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {\n if (k2 === undefined) k2 = k;\n var desc = Object.getOwnPropertyDescriptor(m, k);\n if (!desc || (\"get\" in desc ? !m.__esModule : desc.writable || desc.configurable)) {\n desc = { enumerable: true, get: function() { return m[k]; } };\n }\n Object.defineProperty(o, k2, desc);\n}) : (function(o, m, k, k2) {\n if (k2 === undefined) k2 = k;\n o[k2] = m[k];\n}));\nvar __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {\n Object.defineProperty(o, \"default\", { enumerable: true, value: v });\n}) : function(o, v) {\n o[\"default\"] = v;\n});\nvar __importStar = (this && this.__importStar) || function (mod) {\n if (mod && mod.__esModule) return mod;\n var result = {};\n if (mod != null) for (var k in mod) if (k !== \"default\" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);\n __setModuleDefault(result, mod);\n return result;\n};\nvar __exportStar = (this && this.__exportStar) || function(m, exports) {\n for (var p in m) if (p !== \"default\" && !Object.prototype.hasOwnProperty.call(exports, p)) __createBinding(exports, m, p);\n};\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.KernelConnection = exports.KernelAPI = exports.KernelMessage = exports.Kernel = void 0;\n// Namespace some of our modules for convenience and backwards compatibility.\nconst Kernel = __importStar(require(\"./kernel\"));\nexports.Kernel = Kernel;\nconst KernelMessage = __importStar(require(\"./messages\"));\nexports.KernelMessage = KernelMessage;\nconst KernelAPI = __importStar(require(\"./restapi\"));\nexports.KernelAPI = KernelAPI;\nconst default_1 = require(\"./default\");\nObject.defineProperty(exports, \"KernelConnection\", { enumerable: true, get: function () { return default_1.KernelConnection; } });\n__exportStar(require(\"./manager\"), exports);\n//# sourceMappingURL=index.js.map","\"use strict\";\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\nObject.defineProperty(exports, \"__esModule\", { value: true });\n//# sourceMappingURL=kernel.js.map","\"use strict\";\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.KernelManager = void 0;\nconst polling_1 = require(\"@lumino/polling\");\nconst signaling_1 = require(\"@lumino/signaling\");\nconst __1 = require(\"..\");\nconst basemanager_1 = require(\"../basemanager\");\nconst restapi_1 = require(\"./restapi\");\nconst default_1 = require(\"./default\");\n/**\n * An implementation of a kernel manager.\n */\nclass KernelManager extends basemanager_1.BaseManager {\n /**\n * Construct a new kernel manager.\n *\n * @param options - The default options for kernel.\n */\n constructor(options = {}) {\n var _a;\n super(options);\n this._isReady = false;\n this._kernelConnections = new Set();\n this._models = new Map();\n this._runningChanged = new signaling_1.Signal(this);\n this._connectionFailure = new signaling_1.Signal(this);\n // Start model and specs polling with exponential backoff.\n this._pollModels = new polling_1.Poll({\n auto: false,\n factory: () => this.requestRunning(),\n frequency: {\n interval: 10 * 1000,\n backoff: true,\n max: 300 * 1000\n },\n name: `@jupyterlab/services:KernelManager#models`,\n standby: (_a = options.standby) !== null && _a !== void 0 ? _a : 'when-hidden'\n });\n // Initialize internal data.\n this._ready = (async () => {\n await this._pollModels.start();\n await this._pollModels.tick;\n this._isReady = true;\n })();\n }\n /**\n * Test whether the manager is ready.\n */\n get isReady() {\n return this._isReady;\n }\n /**\n * A promise that fulfills when the manager is ready.\n */\n get ready() {\n return this._ready;\n }\n /**\n * A signal emitted when the running kernels change.\n */\n get runningChanged() {\n return this._runningChanged;\n }\n /**\n * A signal emitted when there is a connection failure.\n */\n get connectionFailure() {\n return this._connectionFailure;\n }\n /**\n * Dispose of the resources used by the manager.\n */\n dispose() {\n if (this.isDisposed) {\n return;\n }\n this._models.clear();\n this._kernelConnections.forEach(x => x.dispose());\n this._pollModels.dispose();\n super.dispose();\n }\n /**\n * Connect to an existing kernel.\n *\n * @returns The new kernel connection.\n *\n * #### Notes\n * This will use the manager's server settings and ignore any server\n * settings passed in the options.\n */\n connectTo(options) {\n var _a;\n const { id } = options.model;\n let handleComms = (_a = options.handleComms) !== null && _a !== void 0 ? _a : true;\n // By default, handle comms only if no other kernel connection is.\n if (options.handleComms === undefined) {\n for (const kc of this._kernelConnections) {\n if (kc.id === id && kc.handleComms) {\n handleComms = false;\n break;\n }\n }\n }\n const kernelConnection = new default_1.KernelConnection({\n handleComms,\n ...options,\n serverSettings: this.serverSettings\n });\n this._onStarted(kernelConnection);\n if (!this._models.has(id)) {\n // We trust the user to connect to an existing kernel, but we verify\n // asynchronously.\n void this.refreshRunning().catch(() => {\n /* no-op */\n });\n }\n return kernelConnection;\n }\n /**\n * Create an iterator over the most recent running kernels.\n *\n * @returns A new iterator over the running kernels.\n */\n running() {\n return this._models.values();\n }\n /**\n * Force a refresh of the running kernels.\n *\n * @returns A promise that resolves when the running list has been refreshed.\n *\n * #### Notes\n * This is not typically meant to be called by the user, since the\n * manager maintains its own internal state.\n */\n async refreshRunning() {\n await this._pollModels.refresh();\n await this._pollModels.tick;\n }\n /**\n * Start a new kernel.\n *\n * @param createOptions - The kernel creation options\n *\n * @param connectOptions - The kernel connection options\n *\n * @returns A promise that resolves with the kernel connection.\n *\n * #### Notes\n * The manager `serverSettings` will be always be used.\n */\n async startNew(createOptions = {}, connectOptions = {}) {\n const model = await (0, restapi_1.startNew)(createOptions, this.serverSettings);\n return this.connectTo({\n ...connectOptions,\n model\n });\n }\n /**\n * Shut down a kernel by id.\n *\n * @param id - The id of the target kernel.\n *\n * @returns A promise that resolves when the operation is complete.\n */\n async shutdown(id) {\n await (0, restapi_1.shutdownKernel)(id, this.serverSettings);\n await this.refreshRunning();\n }\n /**\n * Shut down all kernels.\n *\n * @returns A promise that resolves when all of the kernels are shut down.\n */\n async shutdownAll() {\n // Update the list of models to make sure our list is current.\n await this.refreshRunning();\n // Shut down all models.\n await Promise.all([...this._models.keys()].map(id => (0, restapi_1.shutdownKernel)(id, this.serverSettings)));\n // Update the list of models to clear out our state.\n await this.refreshRunning();\n }\n /**\n * Find a kernel by id.\n *\n * @param id - The id of the target kernel.\n *\n * @returns A promise that resolves with the kernel's model.\n */\n async findById(id) {\n if (this._models.has(id)) {\n return this._models.get(id);\n }\n await this.refreshRunning();\n return this._models.get(id);\n }\n /**\n * Execute a request to the server to poll running kernels and update state.\n */\n async requestRunning() {\n var _a, _b;\n let models;\n try {\n models = await (0, restapi_1.listRunning)(this.serverSettings);\n }\n catch (err) {\n // Handle network errors, as well as cases where we are on a\n // JupyterHub and the server is not running. JupyterHub returns a\n // 503 (<2.0) or 424 (>2.0) in that case.\n if (err instanceof __1.ServerConnection.NetworkError ||\n ((_a = err.response) === null || _a === void 0 ? void 0 : _a.status) === 503 ||\n ((_b = err.response) === null || _b === void 0 ? void 0 : _b.status) === 424) {\n this._connectionFailure.emit(err);\n }\n throw err;\n }\n if (this.isDisposed) {\n return;\n }\n if (this._models.size === models.length &&\n models.every(model => {\n const existing = this._models.get(model.id);\n if (!existing) {\n return false;\n }\n return (existing.connections === model.connections &&\n existing.execution_state === model.execution_state &&\n existing.last_activity === model.last_activity &&\n existing.name === model.name &&\n existing.reason === model.reason &&\n existing.traceback === model.traceback);\n })) {\n // Identical models list (presuming models does not contain duplicate\n // ids), so just return\n return;\n }\n this._models = new Map(models.map(x => [x.id, x]));\n // For any kernel connection to a kernel that doesn't exist, notify it of\n // the shutdown.\n this._kernelConnections.forEach(kc => {\n if (!this._models.has(kc.id)) {\n kc.handleShutdown();\n }\n });\n this._runningChanged.emit(models);\n }\n /**\n * Handle a kernel starting.\n */\n _onStarted(kernelConnection) {\n this._kernelConnections.add(kernelConnection);\n kernelConnection.statusChanged.connect(this._onStatusChanged, this);\n kernelConnection.disposed.connect(this._onDisposed, this);\n }\n _onDisposed(kernelConnection) {\n this._kernelConnections.delete(kernelConnection);\n // A dispose emission could mean the server session is deleted, or that\n // the kernel JS object is disposed and the kernel still exists on the\n // server, so we refresh from the server to make sure we reflect the\n // server state.\n void this.refreshRunning().catch(() => {\n /* no-op */\n });\n }\n _onStatusChanged(kernelConnection, status) {\n if (status === 'dead') {\n // We asynchronously update our list of kernels, which asynchronously\n // will dispose them. We do not want to immediately dispose them because\n // there may be other signal handlers that want to be called.\n void this.refreshRunning().catch(() => {\n /* no-op */\n });\n }\n }\n}\nexports.KernelManager = KernelManager;\n/**\n * The namespace for `KernelManager` class statics.\n */\n(function (KernelManager) {\n /**\n * A no-op kernel manager to be used when starting kernels.\n */\n class NoopManager extends KernelManager {\n constructor() {\n super(...arguments);\n this._readyPromise = new Promise(() => {\n /* no-op */\n });\n }\n /**\n * Whether the manager is active.\n */\n get isActive() {\n return false;\n }\n /**\n * Used for testing.\n */\n get parentReady() {\n return super.ready;\n }\n /**\n * Start a new kernel - throws an error since it is not supported.\n */\n async startNew(createOptions = {}, connectOptions = {}) {\n return Promise.reject(new Error('Not implemented in no-op Kernel Manager'));\n }\n /**\n * Connect to an existing kernel - throws an error since it is not supported.\n */\n connectTo(options) {\n throw new Error('Not implemented in no-op Kernel Manager');\n }\n /**\n * Shut down a kernel by id - throws an error since it is not supported.\n */\n async shutdown(id) {\n return Promise.reject(new Error('Not implemented in no-op Kernel Manager'));\n }\n /**\n * A promise that fulfills when the manager is ready (never).\n */\n get ready() {\n return this.parentReady.then(() => this._readyPromise);\n }\n /**\n * Execute a request to the server to poll running kernels and update state.\n */\n async requestRunning() {\n return Promise.resolve();\n }\n }\n KernelManager.NoopManager = NoopManager;\n})(KernelManager = exports.KernelManager || (exports.KernelManager = {}));\n//# sourceMappingURL=manager.js.map","\"use strict\";\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.supportedKernelWebSocketProtocols = exports.isInputReplyMsg = exports.isInputRequestMsg = exports.isDebugReplyMsg = exports.isDebugRequestMsg = exports.isExecuteReplyMsg = exports.isInfoRequestMsg = exports.isCommMsgMsg = exports.isCommCloseMsg = exports.isCommOpenMsg = exports.isDebugEventMsg = exports.isClearOutputMsg = exports.isStatusMsg = exports.isErrorMsg = exports.isExecuteResultMsg = exports.isExecuteInputMsg = exports.isUpdateDisplayDataMsg = exports.isDisplayDataMsg = exports.isStreamMsg = exports.createMessage = void 0;\nconst coreutils_1 = require(\"@lumino/coreutils\");\nfunction createMessage(options) {\n var _a, _b, _c, _d, _e;\n return {\n buffers: (_a = options.buffers) !== null && _a !== void 0 ? _a : [],\n channel: options.channel,\n content: options.content,\n header: {\n date: new Date().toISOString(),\n msg_id: (_b = options.msgId) !== null && _b !== void 0 ? _b : coreutils_1.UUID.uuid4(),\n msg_type: options.msgType,\n session: options.session,\n username: (_c = options.username) !== null && _c !== void 0 ? _c : '',\n version: '5.2'\n },\n metadata: (_d = options.metadata) !== null && _d !== void 0 ? _d : {},\n parent_header: (_e = options.parentHeader) !== null && _e !== void 0 ? _e : {}\n };\n}\nexports.createMessage = createMessage;\n/**\n * Test whether a kernel message is a `'stream'` message.\n */\nfunction isStreamMsg(msg) {\n return msg.header.msg_type === 'stream';\n}\nexports.isStreamMsg = isStreamMsg;\n/**\n * Test whether a kernel message is an `'display_data'` message.\n */\nfunction isDisplayDataMsg(msg) {\n return msg.header.msg_type === 'display_data';\n}\nexports.isDisplayDataMsg = isDisplayDataMsg;\n/**\n * Test whether a kernel message is an `'update_display_data'` message.\n */\nfunction isUpdateDisplayDataMsg(msg) {\n return msg.header.msg_type === 'update_display_data';\n}\nexports.isUpdateDisplayDataMsg = isUpdateDisplayDataMsg;\n/**\n * Test whether a kernel message is an `'execute_input'` message.\n */\nfunction isExecuteInputMsg(msg) {\n return msg.header.msg_type === 'execute_input';\n}\nexports.isExecuteInputMsg = isExecuteInputMsg;\n/**\n * Test whether a kernel message is an `'execute_result'` message.\n */\nfunction isExecuteResultMsg(msg) {\n return msg.header.msg_type === 'execute_result';\n}\nexports.isExecuteResultMsg = isExecuteResultMsg;\n/**\n * Test whether a kernel message is an `'error'` message.\n */\nfunction isErrorMsg(msg) {\n return msg.header.msg_type === 'error';\n}\nexports.isErrorMsg = isErrorMsg;\n/**\n * Test whether a kernel message is a `'status'` message.\n */\nfunction isStatusMsg(msg) {\n return msg.header.msg_type === 'status';\n}\nexports.isStatusMsg = isStatusMsg;\n/**\n * Test whether a kernel message is a `'clear_output'` message.\n */\nfunction isClearOutputMsg(msg) {\n return msg.header.msg_type === 'clear_output';\n}\nexports.isClearOutputMsg = isClearOutputMsg;\n/**\n * Test whether a kernel message is an experimental `'debug_event'` message.\n *\n * @hidden\n *\n * #### Notes\n * Debug messages are experimental messages that are not in the official\n * kernel message specification. As such, this is *NOT* considered\n * part of the public API, and may change without notice.\n */\nfunction isDebugEventMsg(msg) {\n return msg.header.msg_type === 'debug_event';\n}\nexports.isDebugEventMsg = isDebugEventMsg;\n/**\n * Test whether a kernel message is a `'comm_open'` message.\n */\nfunction isCommOpenMsg(msg) {\n return msg.header.msg_type === 'comm_open';\n}\nexports.isCommOpenMsg = isCommOpenMsg;\n/**\n * Test whether a kernel message is a `'comm_close'` message.\n */\nfunction isCommCloseMsg(msg) {\n return msg.header.msg_type === 'comm_close';\n}\nexports.isCommCloseMsg = isCommCloseMsg;\n/**\n * Test whether a kernel message is a `'comm_msg'` message.\n */\nfunction isCommMsgMsg(msg) {\n return msg.header.msg_type === 'comm_msg';\n}\nexports.isCommMsgMsg = isCommMsgMsg;\n/**\n * Test whether a kernel message is a `'kernel_info_request'` message.\n */\nfunction isInfoRequestMsg(msg) {\n return msg.header.msg_type === 'kernel_info_request';\n}\nexports.isInfoRequestMsg = isInfoRequestMsg;\n/**\n * Test whether a kernel message is an `'execute_reply'` message.\n */\nfunction isExecuteReplyMsg(msg) {\n return msg.header.msg_type === 'execute_reply';\n}\nexports.isExecuteReplyMsg = isExecuteReplyMsg;\n/**\n * Test whether a kernel message is an experimental `'debug_request'` message.\n *\n * @hidden\n *\n * #### Notes\n * Debug messages are experimental messages that are not in the official\n * kernel message specification. As such, this is *NOT* considered\n * part of the public API, and may change without notice.\n */\nfunction isDebugRequestMsg(msg) {\n return msg.header.msg_type === 'debug_request';\n}\nexports.isDebugRequestMsg = isDebugRequestMsg;\n/**\n * Test whether a kernel message is an experimental `'debug_reply'` message.\n *\n * @hidden\n *\n * #### Notes\n * Debug messages are experimental messages that are not in the official\n * kernel message specification. As such, this is *NOT* considered\n * part of the public API, and may change without notice.\n */\nfunction isDebugReplyMsg(msg) {\n return msg.header.msg_type === 'debug_reply';\n}\nexports.isDebugReplyMsg = isDebugReplyMsg;\n/**\n * Test whether a kernel message is an `'input_request'` message.\n */\nfunction isInputRequestMsg(msg) {\n return msg.header.msg_type === 'input_request';\n}\nexports.isInputRequestMsg = isInputRequestMsg;\n/**\n * Test whether a kernel message is an `'input_reply'` message.\n */\nfunction isInputReplyMsg(msg) {\n return msg.header.msg_type === 'input_reply';\n}\nexports.isInputReplyMsg = isInputReplyMsg;\n// ///////////////////////////////////////////////\n// Message (de)serialization\n// ///////////////////////////////////////////////\n/**\n * The list of supported kernel wire protocols over websocket.\n */\nvar supportedKernelWebSocketProtocols;\n(function (supportedKernelWebSocketProtocols) {\n supportedKernelWebSocketProtocols[\"v1KernelWebsocketJupyterOrg\"] = \"v1.kernel.websocket.jupyter.org\";\n})(supportedKernelWebSocketProtocols = exports.supportedKernelWebSocketProtocols || (exports.supportedKernelWebSocketProtocols = {}));\n//# sourceMappingURL=messages.js.map","\"use strict\";\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.getKernelModel = exports.shutdownKernel = exports.interruptKernel = exports.restartKernel = exports.startNew = exports.listRunning = exports.KERNEL_SERVICE_URL = void 0;\nconst serverconnection_1 = require(\"../serverconnection\");\nconst coreutils_1 = require(\"@jupyterlab/coreutils\");\nconst validate_1 = require(\"./validate\");\n/**\n * The url for the kernel service.\n */\nexports.KERNEL_SERVICE_URL = 'api/kernels';\n/**\n * Fetch the running kernels.\n *\n * @param settings - The optional server settings.\n *\n * @returns A promise that resolves with the list of running kernels.\n *\n * #### Notes\n * Uses the [Jupyter Notebook API](https://petstore.swagger.io/?url=https://raw.githubusercontent.com/jupyter-server/jupyter_server/main/jupyter_server/services/api/api.yaml#!/kernels) and validates the response model.\n *\n * The promise is fulfilled on a valid response and rejected otherwise.\n */\nasync function listRunning(settings = serverconnection_1.ServerConnection.makeSettings()) {\n const url = coreutils_1.URLExt.join(settings.baseUrl, exports.KERNEL_SERVICE_URL);\n const response = await serverconnection_1.ServerConnection.makeRequest(url, {}, settings);\n if (response.status !== 200) {\n const err = await serverconnection_1.ServerConnection.ResponseError.create(response);\n throw err;\n }\n const data = await response.json();\n (0, validate_1.validateModels)(data);\n return data;\n}\nexports.listRunning = listRunning;\n/**\n * Start a new kernel.\n *\n * @param options - The options used to create the kernel.\n *\n * @returns A promise that resolves with a kernel connection object.\n *\n * #### Notes\n * Uses the [Jupyter Notebook API](https://petstore.swagger.io/?url=https://raw.githubusercontent.com/jupyter-server/jupyter_server/main/jupyter_server/services/api/api.yaml#!/kernels) and validates the response model.\n *\n * The promise is fulfilled on a valid response and rejected otherwise.\n */\nasync function startNew(options = {}, settings = serverconnection_1.ServerConnection.makeSettings()) {\n const url = coreutils_1.URLExt.join(settings.baseUrl, exports.KERNEL_SERVICE_URL);\n const init = {\n method: 'POST',\n body: JSON.stringify(options)\n };\n const response = await serverconnection_1.ServerConnection.makeRequest(url, init, settings);\n if (response.status !== 201) {\n const err = await serverconnection_1.ServerConnection.ResponseError.create(response);\n throw err;\n }\n const data = await response.json();\n (0, validate_1.validateModel)(data);\n return data;\n}\nexports.startNew = startNew;\n/**\n * Restart a kernel.\n *\n * #### Notes\n * Uses the [Jupyter Notebook API](https://petstore.swagger.io/?url=https://raw.githubusercontent.com/jupyter-server/jupyter_server/main/jupyter_server/services/api/api.yaml#!/kernels) and validates the response model.\n *\n * The promise is fulfilled on a valid response (and thus after a restart) and rejected otherwise.\n */\nasync function restartKernel(id, settings = serverconnection_1.ServerConnection.makeSettings()) {\n const url = coreutils_1.URLExt.join(settings.baseUrl, exports.KERNEL_SERVICE_URL, encodeURIComponent(id), 'restart');\n const init = { method: 'POST' };\n const response = await serverconnection_1.ServerConnection.makeRequest(url, init, settings);\n if (response.status !== 200) {\n const err = await serverconnection_1.ServerConnection.ResponseError.create(response);\n throw err;\n }\n const data = await response.json();\n (0, validate_1.validateModel)(data);\n}\nexports.restartKernel = restartKernel;\n/**\n * Interrupt a kernel.\n *\n * #### Notes\n * Uses the [Jupyter Notebook API](https://petstore.swagger.io/?url=https://raw.githubusercontent.com/jupyter-server/jupyter_server/main/jupyter_server/services/api/api.yaml#!/kernels) and validates the response model.\n *\n * The promise is fulfilled on a valid response and rejected otherwise.\n */\nasync function interruptKernel(id, settings = serverconnection_1.ServerConnection.makeSettings()) {\n const url = coreutils_1.URLExt.join(settings.baseUrl, exports.KERNEL_SERVICE_URL, encodeURIComponent(id), 'interrupt');\n const init = { method: 'POST' };\n const response = await serverconnection_1.ServerConnection.makeRequest(url, init, settings);\n if (response.status !== 204) {\n const err = await serverconnection_1.ServerConnection.ResponseError.create(response);\n throw err;\n }\n}\nexports.interruptKernel = interruptKernel;\n/**\n * Shut down a kernel.\n *\n * @param id - The id of the running kernel.\n *\n * @param settings - The server settings for the request.\n *\n * @returns A promise that resolves when the kernel is shut down.\n *\n *\n * #### Notes\n * Uses the [Jupyter Notebook API](https://petstore.swagger.io/?url=https://raw.githubusercontent.com/jupyter-server/jupyter_server/main/jupyter_server/services/api/api.yaml#!/kernels) and validates the response model.\n *\n * The promise is fulfilled on a valid response and rejected otherwise.\n */\nasync function shutdownKernel(id, settings = serverconnection_1.ServerConnection.makeSettings()) {\n const url = coreutils_1.URLExt.join(settings.baseUrl, exports.KERNEL_SERVICE_URL, encodeURIComponent(id));\n const init = { method: 'DELETE' };\n const response = await serverconnection_1.ServerConnection.makeRequest(url, init, settings);\n if (response.status === 404) {\n const msg = `The kernel \"${id}\" does not exist on the server`;\n console.warn(msg);\n }\n else if (response.status !== 204) {\n const err = await serverconnection_1.ServerConnection.ResponseError.create(response);\n throw err;\n }\n}\nexports.shutdownKernel = shutdownKernel;\n/**\n * Get a full kernel model from the server by kernel id string.\n *\n * #### Notes\n * Uses the [Jupyter Notebook API](https://petstore.swagger.io/?url=https://raw.githubusercontent.com/jupyter-server/jupyter_server/main/jupyter_server/services/api/api.yaml#!/kernels) and validates the response model.\n *\n * The promise is fulfilled on a valid response and rejected otherwise.\n */\nasync function getKernelModel(id, settings = serverconnection_1.ServerConnection.makeSettings()) {\n const url = coreutils_1.URLExt.join(settings.baseUrl, exports.KERNEL_SERVICE_URL, encodeURIComponent(id));\n const response = await serverconnection_1.ServerConnection.makeRequest(url, {}, settings);\n if (response.status === 404) {\n return undefined;\n }\n else if (response.status !== 200) {\n const err = await serverconnection_1.ServerConnection.ResponseError.create(response);\n throw err;\n }\n const data = await response.json();\n (0, validate_1.validateModel)(data);\n return data;\n}\nexports.getKernelModel = getKernelModel;\n//# sourceMappingURL=restapi.js.map","\"use strict\";\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\nvar __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {\n if (k2 === undefined) k2 = k;\n var desc = Object.getOwnPropertyDescriptor(m, k);\n if (!desc || (\"get\" in desc ? !m.__esModule : desc.writable || desc.configurable)) {\n desc = { enumerable: true, get: function() { return m[k]; } };\n }\n Object.defineProperty(o, k2, desc);\n}) : (function(o, m, k, k2) {\n if (k2 === undefined) k2 = k;\n o[k2] = m[k];\n}));\nvar __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {\n Object.defineProperty(o, \"default\", { enumerable: true, value: v });\n}) : function(o, v) {\n o[\"default\"] = v;\n});\nvar __importStar = (this && this.__importStar) || function (mod) {\n if (mod && mod.__esModule) return mod;\n var result = {};\n if (mod != null) for (var k in mod) if (k !== \"default\" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);\n __setModuleDefault(result, mod);\n return result;\n};\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.deserialize = exports.serialize = void 0;\nconst KernelMessage = __importStar(require(\"./messages\"));\n/**\n * Serialize a kernel message for transport.\n */\nfunction serialize(msg, protocol = '') {\n switch (protocol) {\n case KernelMessage.supportedKernelWebSocketProtocols\n .v1KernelWebsocketJupyterOrg:\n return Private.serializeV1KernelWebsocketJupyterOrg(msg);\n default:\n return Private.serializeDefault(msg);\n }\n}\nexports.serialize = serialize;\n/**\n * Deserialize and return the unpacked message.\n */\nfunction deserialize(data, protocol = '') {\n switch (protocol) {\n case KernelMessage.supportedKernelWebSocketProtocols\n .v1KernelWebsocketJupyterOrg:\n return Private.deserializeV1KernelWebsocketJupyterOrg(data);\n default:\n return Private.deserializeDefault(data);\n }\n}\nexports.deserialize = deserialize;\nvar Private;\n(function (Private) {\n /**\n * Deserialize and return the unpacked message.\n * Protocol `v1.kernel.websocket.jupyter.org`\n */\n function deserializeV1KernelWebsocketJupyterOrg(binMsg) {\n let msg;\n const data = new DataView(binMsg);\n const offsetNumber = Number(data.getBigUint64(0, true /* littleEndian */));\n let offsets = [];\n for (let i = 0; i < offsetNumber; i++) {\n // WARNING: we cast our 64-bit unsigned int to a number!\n // so offsets cannot index up to 2**64 bytes\n offsets.push(Number(data.getBigUint64(8 * (i + 1), true /* littleEndian */)));\n }\n const decoder = new TextDecoder('utf8');\n const channel = decoder.decode(binMsg.slice(offsets[0], offsets[1]));\n const header = JSON.parse(decoder.decode(binMsg.slice(offsets[1], offsets[2])));\n const parent_header = JSON.parse(decoder.decode(binMsg.slice(offsets[2], offsets[3])));\n const metadata = JSON.parse(decoder.decode(binMsg.slice(offsets[3], offsets[4])));\n const content = JSON.parse(decoder.decode(binMsg.slice(offsets[4], offsets[5])));\n let buffers = [];\n for (let i = 5; i < offsets.length - 1; i++) {\n buffers.push(new DataView(binMsg.slice(offsets[i], offsets[i + 1])));\n }\n msg = {\n channel,\n header,\n parent_header,\n metadata,\n content,\n buffers\n };\n return msg;\n }\n Private.deserializeV1KernelWebsocketJupyterOrg = deserializeV1KernelWebsocketJupyterOrg;\n /**\n * Serialize a kernel message for transport.\n * Protocol `v1.kernel.websocket.jupyter.org`\n */\n function serializeV1KernelWebsocketJupyterOrg(msg) {\n const header = JSON.stringify(msg.header);\n const parentHeader = msg.parent_header == null ? '{}' : JSON.stringify(msg.parent_header);\n const metadata = JSON.stringify(msg.metadata);\n const content = JSON.stringify(msg.content);\n const buffers = msg.buffers !== undefined ? msg.buffers : [];\n const offsetNumber = 1 + 4 + buffers.length + 1;\n let offsets = [];\n offsets.push(8 * (1 + offsetNumber));\n offsets.push(msg.channel.length + offsets[offsets.length - 1]);\n const encoder = new TextEncoder();\n const channelEncoded = encoder.encode(msg.channel);\n const headerEncoded = encoder.encode(header);\n const parentHeaderEncoded = encoder.encode(parentHeader);\n const metadataEncoded = encoder.encode(metadata);\n const contentEncoded = encoder.encode(content);\n const binMsgNoBuff = new Uint8Array(channelEncoded.length +\n headerEncoded.length +\n parentHeaderEncoded.length +\n metadataEncoded.length +\n contentEncoded.length);\n binMsgNoBuff.set(channelEncoded);\n binMsgNoBuff.set(headerEncoded, channelEncoded.length);\n binMsgNoBuff.set(parentHeaderEncoded, channelEncoded.length + headerEncoded.length);\n binMsgNoBuff.set(metadataEncoded, channelEncoded.length + headerEncoded.length + parentHeaderEncoded.length);\n binMsgNoBuff.set(contentEncoded, channelEncoded.length +\n headerEncoded.length +\n parentHeaderEncoded.length +\n metadataEncoded.length);\n for (let length of [\n headerEncoded.length,\n parentHeaderEncoded.length,\n metadataEncoded.length,\n contentEncoded.length\n ]) {\n offsets.push(length + offsets[offsets.length - 1]);\n }\n let buffersByteLength = 0;\n for (let buffer of buffers) {\n let length = buffer.byteLength;\n offsets.push(length + offsets[offsets.length - 1]);\n buffersByteLength += length;\n }\n const binMsg = new Uint8Array(8 * (1 + offsetNumber) + binMsgNoBuff.byteLength + buffersByteLength);\n const word = new ArrayBuffer(8);\n const data = new DataView(word);\n data.setBigUint64(0, BigInt(offsetNumber), true /* littleEndian */);\n binMsg.set(new Uint8Array(word), 0);\n for (let i = 0; i < offsets.length; i++) {\n data.setBigUint64(0, BigInt(offsets[i]), true /* littleEndian */);\n binMsg.set(new Uint8Array(word), 8 * (i + 1));\n }\n binMsg.set(binMsgNoBuff, offsets[0]);\n for (let i = 0; i < buffers.length; i++) {\n const buffer = buffers[i];\n binMsg.set(new Uint8Array(ArrayBuffer.isView(buffer) ? buffer.buffer : buffer), offsets[5 + i]);\n }\n return binMsg.buffer;\n }\n Private.serializeV1KernelWebsocketJupyterOrg = serializeV1KernelWebsocketJupyterOrg;\n /**\n * Deserialize and return the unpacked message.\n * Default protocol\n *\n * #### Notes\n * Handles JSON blob strings and binary messages.\n */\n function deserializeDefault(data) {\n let value;\n if (typeof data === 'string') {\n value = JSON.parse(data);\n }\n else {\n value = deserializeBinary(data);\n }\n return value;\n }\n Private.deserializeDefault = deserializeDefault;\n /**\n * Serialize a kernel message for transport.\n * Default protocol\n *\n * #### Notes\n * If there is binary content, an `ArrayBuffer` is returned,\n * otherwise the message is converted to a JSON string.\n */\n function serializeDefault(msg) {\n var _a;\n let value;\n if ((_a = msg.buffers) === null || _a === void 0 ? void 0 : _a.length) {\n value = serializeBinary(msg);\n }\n else {\n value = JSON.stringify(msg);\n }\n return value;\n }\n Private.serializeDefault = serializeDefault;\n /**\n * Deserialize a binary message to a Kernel Message.\n */\n function deserializeBinary(buf) {\n const data = new DataView(buf);\n // read the header: 1 + nbufs 32b integers\n const nbufs = data.getUint32(0);\n const offsets = [];\n if (nbufs < 2) {\n throw new Error('Invalid incoming Kernel Message');\n }\n for (let i = 1; i <= nbufs; i++) {\n offsets.push(data.getUint32(i * 4));\n }\n const jsonBytes = new Uint8Array(buf.slice(offsets[0], offsets[1]));\n const msg = JSON.parse(new TextDecoder('utf8').decode(jsonBytes));\n // the remaining chunks are stored as DataViews in msg.buffers\n msg.buffers = [];\n for (let i = 1; i < nbufs; i++) {\n const start = offsets[i];\n const stop = offsets[i + 1] || buf.byteLength;\n msg.buffers.push(new DataView(buf.slice(start, stop)));\n }\n return msg;\n }\n /**\n * Implement the binary serialization protocol.\n *\n * Serialize Kernel message to ArrayBuffer.\n */\n function serializeBinary(msg) {\n const offsets = [];\n const buffers = [];\n const encoder = new TextEncoder();\n let origBuffers = [];\n if (msg.buffers !== undefined) {\n origBuffers = msg.buffers;\n delete msg['buffers'];\n }\n const jsonUtf8 = encoder.encode(JSON.stringify(msg));\n buffers.push(jsonUtf8.buffer);\n for (let i = 0; i < origBuffers.length; i++) {\n // msg.buffers elements could be either views or ArrayBuffers\n // buffers elements are ArrayBuffers\n const b = origBuffers[i];\n buffers.push(ArrayBuffer.isView(b) ? b.buffer : b);\n }\n const nbufs = buffers.length;\n offsets.push(4 * (nbufs + 1));\n for (let i = 0; i + 1 < buffers.length; i++) {\n offsets.push(offsets[offsets.length - 1] + buffers[i].byteLength);\n }\n const msgBuf = new Uint8Array(offsets[offsets.length - 1] + buffers[buffers.length - 1].byteLength);\n // use DataView.setUint32 for network byte-order\n const view = new DataView(msgBuf.buffer);\n // write nbufs to first 4 bytes\n view.setUint32(0, nbufs);\n // write offsets to next 4 * nbufs bytes\n for (let i = 0; i < offsets.length; i++) {\n view.setUint32(4 * (i + 1), offsets[i]);\n }\n // write all the buffers at their respective offsets\n for (let i = 0; i < buffers.length; i++) {\n msgBuf.set(new Uint8Array(buffers[i]), offsets[i]);\n }\n return msgBuf.buffer;\n }\n})(Private || (Private = {}));\n//# sourceMappingURL=serialize.js.map","\"use strict\";\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.validateModels = exports.validateModel = exports.validateMessage = void 0;\nconst validate_1 = require(\"../validate\");\n/**\n * Required fields for `IKernelHeader`.\n */\nconst HEADER_FIELDS = ['username', 'version', 'session', 'msg_id', 'msg_type'];\n/**\n * Required fields and types for contents of various types of `kernel.IMessage`\n * messages on the iopub channel.\n */\nconst IOPUB_CONTENT_FIELDS = {\n stream: { name: 'string', text: 'string' },\n display_data: { data: 'object', metadata: 'object' },\n execute_input: { code: 'string', execution_count: 'number' },\n execute_result: {\n execution_count: 'number',\n data: 'object',\n metadata: 'object'\n },\n error: { ename: 'string', evalue: 'string', traceback: 'object' },\n status: {\n execution_state: [\n 'string',\n ['starting', 'idle', 'busy', 'restarting', 'dead']\n ]\n },\n clear_output: { wait: 'boolean' },\n comm_open: { comm_id: 'string', target_name: 'string', data: 'object' },\n comm_msg: { comm_id: 'string', data: 'object' },\n comm_close: { comm_id: 'string' },\n shutdown_reply: { restart: 'boolean' } // Emitted by the IPython kernel.\n};\n/**\n * Validate the header of a kernel message.\n */\nfunction validateHeader(header) {\n for (let i = 0; i < HEADER_FIELDS.length; i++) {\n (0, validate_1.validateProperty)(header, HEADER_FIELDS[i], 'string');\n }\n}\n/**\n * Validate a kernel message object.\n */\nfunction validateMessage(msg) {\n (0, validate_1.validateProperty)(msg, 'metadata', 'object');\n (0, validate_1.validateProperty)(msg, 'content', 'object');\n (0, validate_1.validateProperty)(msg, 'channel', 'string');\n validateHeader(msg.header);\n if (msg.channel === 'iopub') {\n validateIOPubContent(msg);\n }\n}\nexports.validateMessage = validateMessage;\n/**\n * Validate content an kernel message on the iopub channel.\n */\nfunction validateIOPubContent(msg) {\n if (msg.channel === 'iopub') {\n const fields = IOPUB_CONTENT_FIELDS[msg.header.msg_type];\n // Check for unknown message type.\n if (fields === undefined) {\n return;\n }\n const names = Object.keys(fields);\n const content = msg.content;\n for (let i = 0; i < names.length; i++) {\n let args = fields[names[i]];\n if (!Array.isArray(args)) {\n args = [args];\n }\n (0, validate_1.validateProperty)(content, names[i], ...args);\n }\n }\n}\n/**\n * Validate a `Kernel.IModel` object.\n */\nfunction validateModel(model) {\n (0, validate_1.validateProperty)(model, 'name', 'string');\n (0, validate_1.validateProperty)(model, 'id', 'string');\n}\nexports.validateModel = validateModel;\n/**\n * Validate an array of `IModel` objects.\n */\nfunction validateModels(models) {\n if (!Array.isArray(models)) {\n throw new Error('Invalid kernel list');\n }\n models.forEach(d => validateModel(d));\n}\nexports.validateModels = validateModels;\n//# sourceMappingURL=validate.js.map","\"use strict\";\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\nvar __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {\n if (k2 === undefined) k2 = k;\n var desc = Object.getOwnPropertyDescriptor(m, k);\n if (!desc || (\"get\" in desc ? !m.__esModule : desc.writable || desc.configurable)) {\n desc = { enumerable: true, get: function() { return m[k]; } };\n }\n Object.defineProperty(o, k2, desc);\n}) : (function(o, m, k, k2) {\n if (k2 === undefined) k2 = k;\n o[k2] = m[k];\n}));\nvar __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {\n Object.defineProperty(o, \"default\", { enumerable: true, value: v });\n}) : function(o, v) {\n o[\"default\"] = v;\n});\nvar __importStar = (this && this.__importStar) || function (mod) {\n if (mod && mod.__esModule) return mod;\n var result = {};\n if (mod != null) for (var k in mod) if (k !== \"default\" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);\n __setModuleDefault(result, mod);\n return result;\n};\nvar __exportStar = (this && this.__exportStar) || function(m, exports) {\n for (var p in m) if (p !== \"default\" && !Object.prototype.hasOwnProperty.call(exports, p)) __createBinding(exports, m, p);\n};\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.KernelSpecAPI = exports.KernelSpec = void 0;\nconst KernelSpec = __importStar(require(\"./kernelspec\"));\nexports.KernelSpec = KernelSpec;\nconst KernelSpecAPI = __importStar(require(\"./restapi\"));\nexports.KernelSpecAPI = KernelSpecAPI;\n__exportStar(require(\"./manager\"), exports);\n//# sourceMappingURL=index.js.map","\"use strict\";\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\nObject.defineProperty(exports, \"__esModule\", { value: true });\n//# sourceMappingURL=kernelspec.js.map","\"use strict\";\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\nvar __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {\n if (k2 === undefined) k2 = k;\n var desc = Object.getOwnPropertyDescriptor(m, k);\n if (!desc || (\"get\" in desc ? !m.__esModule : desc.writable || desc.configurable)) {\n desc = { enumerable: true, get: function() { return m[k]; } };\n }\n Object.defineProperty(o, k2, desc);\n}) : (function(o, m, k, k2) {\n if (k2 === undefined) k2 = k;\n o[k2] = m[k];\n}));\nvar __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {\n Object.defineProperty(o, \"default\", { enumerable: true, value: v });\n}) : function(o, v) {\n o[\"default\"] = v;\n});\nvar __importStar = (this && this.__importStar) || function (mod) {\n if (mod && mod.__esModule) return mod;\n var result = {};\n if (mod != null) for (var k in mod) if (k !== \"default\" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);\n __setModuleDefault(result, mod);\n return result;\n};\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.KernelSpecManager = void 0;\nconst coreutils_1 = require(\"@lumino/coreutils\");\nconst polling_1 = require(\"@lumino/polling\");\nconst signaling_1 = require(\"@lumino/signaling\");\nconst restapi = __importStar(require(\"./restapi\"));\nconst basemanager_1 = require(\"../basemanager\");\n/**\n * An implementation of a kernel spec manager.\n */\nclass KernelSpecManager extends basemanager_1.BaseManager {\n /**\n * Construct a new kernel spec manager.\n *\n * @param options - The default options for kernel.\n */\n constructor(options = {}) {\n var _a;\n super(options);\n this._isReady = false;\n this._connectionFailure = new signaling_1.Signal(this);\n this._specs = null;\n this._specsChanged = new signaling_1.Signal(this);\n // Initialize internal data.\n this._ready = Promise.all([this.requestSpecs()])\n .then(_ => undefined)\n .catch(_ => undefined)\n .then(() => {\n if (this.isDisposed) {\n return;\n }\n this._isReady = true;\n });\n this._pollSpecs = new polling_1.Poll({\n auto: false,\n factory: () => this.requestSpecs(),\n frequency: {\n interval: 61 * 1000,\n backoff: true,\n max: 300 * 1000\n },\n name: `@jupyterlab/services:KernelSpecManager#specs`,\n standby: (_a = options.standby) !== null && _a !== void 0 ? _a : 'when-hidden'\n });\n void this.ready.then(() => {\n void this._pollSpecs.start();\n });\n }\n /**\n * Test whether the manager is ready.\n */\n get isReady() {\n return this._isReady;\n }\n /**\n * A promise that fulfills when the manager is ready.\n */\n get ready() {\n return this._ready;\n }\n /**\n * Get the most recently fetched kernel specs.\n */\n get specs() {\n return this._specs;\n }\n /**\n * A signal emitted when the specs change.\n */\n get specsChanged() {\n return this._specsChanged;\n }\n /**\n * A signal emitted when there is a connection failure.\n */\n get connectionFailure() {\n return this._connectionFailure;\n }\n /**\n * Dispose of the resources used by the manager.\n */\n dispose() {\n this._pollSpecs.dispose();\n super.dispose();\n }\n /**\n * Force a refresh of the specs from the server.\n *\n * @returns A promise that resolves when the specs are fetched.\n *\n * #### Notes\n * This is intended to be called only in response to a user action,\n * since the manager maintains its internal state.\n */\n async refreshSpecs() {\n await this._pollSpecs.refresh();\n await this._pollSpecs.tick;\n }\n /**\n * Execute a request to the server to poll specs and update state.\n */\n async requestSpecs() {\n const specs = await restapi.getSpecs(this.serverSettings);\n if (this.isDisposed) {\n return;\n }\n if (!coreutils_1.JSONExt.deepEqual(specs, this._specs)) {\n this._specs = specs;\n this._specsChanged.emit(specs);\n }\n }\n}\nexports.KernelSpecManager = KernelSpecManager;\n//# sourceMappingURL=manager.js.map","\"use strict\";\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.getSpecs = void 0;\nconst serverconnection_1 = require(\"../serverconnection\");\nconst validate_1 = require(\"./validate\");\nconst coreutils_1 = require(\"@jupyterlab/coreutils\");\n/**\n * The url for the kernelspec service.\n */\nconst KERNELSPEC_SERVICE_URL = 'api/kernelspecs';\n/**\n * Fetch all of the kernel specs.\n *\n * @param settings - The optional server settings.\n * @param useCache - Whether to use the cache. If false, always request.\n *\n * @returns A promise that resolves with the kernel specs.\n *\n * #### Notes\n * Uses the [Jupyter Notebook API](https://petstore.swagger.io/?url=https://raw.githubusercontent.com/jupyter-server/jupyter_server/main/jupyter_server/services/api/api.yaml#!/kernelspecs).\n */\nasync function getSpecs(settings = serverconnection_1.ServerConnection.makeSettings()) {\n const url = coreutils_1.URLExt.join(settings.baseUrl, KERNELSPEC_SERVICE_URL);\n const response = await serverconnection_1.ServerConnection.makeRequest(url, {}, settings);\n if (response.status !== 200) {\n const err = await serverconnection_1.ServerConnection.ResponseError.create(response);\n throw err;\n }\n const data = await response.json();\n return (0, validate_1.validateSpecModels)(data);\n}\nexports.getSpecs = getSpecs;\n//# sourceMappingURL=restapi.js.map","\"use strict\";\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.validateSpecModels = exports.validateSpecModel = void 0;\nconst validate_1 = require(\"../validate\");\n/**\n * Validate a server kernelspec model to a client side model.\n */\n// eslint-disable-next-line @typescript-eslint/explicit-module-boundary-types\nfunction validateSpecModel(data) {\n const spec = data.spec;\n if (!spec) {\n throw new Error('Invalid kernel spec');\n }\n (0, validate_1.validateProperty)(data, 'name', 'string');\n (0, validate_1.validateProperty)(data, 'resources', 'object');\n (0, validate_1.validateProperty)(spec, 'language', 'string');\n (0, validate_1.validateProperty)(spec, 'display_name', 'string');\n (0, validate_1.validateProperty)(spec, 'argv', 'array');\n let metadata = null;\n if (spec.hasOwnProperty('metadata')) {\n (0, validate_1.validateProperty)(spec, 'metadata', 'object');\n metadata = spec.metadata;\n }\n let env = null;\n if (spec.hasOwnProperty('env')) {\n (0, validate_1.validateProperty)(spec, 'env', 'object');\n env = spec.env;\n }\n return {\n name: data.name,\n resources: data.resources,\n language: spec.language,\n display_name: spec.display_name,\n argv: spec.argv,\n metadata,\n env\n };\n}\nexports.validateSpecModel = validateSpecModel;\n/**\n * Validate a `Kernel.ISpecModels` object.\n */\n// eslint-disable-next-line @typescript-eslint/explicit-module-boundary-types\nfunction validateSpecModels(data) {\n if (!data.hasOwnProperty('kernelspecs')) {\n throw new Error('No kernelspecs found');\n }\n let keys = Object.keys(data.kernelspecs);\n const kernelspecs = Object.create(null);\n let defaultSpec = data.default;\n for (let i = 0; i < keys.length; i++) {\n const ks = data.kernelspecs[keys[i]];\n try {\n kernelspecs[keys[i]] = validateSpecModel(ks);\n }\n catch (err) {\n // Remove the errant kernel spec.\n console.warn(`Removing errant kernel spec: ${keys[i]}`);\n }\n }\n keys = Object.keys(kernelspecs);\n if (!keys.length) {\n throw new Error('No valid kernelspecs found');\n }\n if (!defaultSpec ||\n typeof defaultSpec !== 'string' ||\n !(defaultSpec in kernelspecs)) {\n defaultSpec = keys[0];\n console.warn(`Default kernel not found, using '${keys[0]}'`);\n }\n return {\n default: defaultSpec,\n kernelspecs\n };\n}\nexports.validateSpecModels = validateSpecModels;\n//# sourceMappingURL=validate.js.map","\"use strict\";\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.ServiceManager = void 0;\nconst signaling_1 = require(\"@lumino/signaling\");\nconst builder_1 = require(\"./builder\");\nconst contents_1 = require(\"./contents\");\nconst event_1 = require(\"./event\");\nconst kernel_1 = require(\"./kernel\");\nconst kernelspec_1 = require(\"./kernelspec\");\nconst nbconvert_1 = require(\"./nbconvert\");\nconst serverconnection_1 = require(\"./serverconnection\");\nconst session_1 = require(\"./session\");\nconst setting_1 = require(\"./setting\");\nconst terminal_1 = require(\"./terminal\");\nconst user_1 = require(\"./user\");\nconst workspace_1 = require(\"./workspace\");\n/**\n * A Jupyter services manager.\n */\nclass ServiceManager {\n /**\n * Construct a new services provider.\n */\n constructor(options = {}) {\n var _a, _b;\n this._isDisposed = false;\n this._connectionFailure = new signaling_1.Signal(this);\n this._isReady = false;\n const defaultDrive = options.defaultDrive;\n const serverSettings = (_a = options.serverSettings) !== null && _a !== void 0 ? _a : serverconnection_1.ServerConnection.makeSettings();\n const standby = (_b = options.standby) !== null && _b !== void 0 ? _b : 'when-hidden';\n const normalized = { defaultDrive, serverSettings, standby };\n this.serverSettings = serverSettings;\n this.contents = options.contents || new contents_1.ContentsManager(normalized);\n this.events = options.events || new event_1.EventManager(normalized);\n this.kernels = options.kernels || new kernel_1.KernelManager(normalized);\n this.sessions =\n options.sessions ||\n new session_1.SessionManager({\n ...normalized,\n kernelManager: this.kernels\n });\n this.settings = options.settings || new setting_1.SettingManager(normalized);\n this.terminals = options.terminals || new terminal_1.TerminalManager(normalized);\n this.builder = options.builder || new builder_1.BuildManager(normalized);\n this.workspaces = options.workspaces || new workspace_1.WorkspaceManager(normalized);\n this.nbconvert = options.nbconvert || new nbconvert_1.NbConvertManager(normalized);\n this.kernelspecs = options.kernelspecs || new kernelspec_1.KernelSpecManager(normalized);\n this.user = options.user || new user_1.UserManager(normalized);\n // Proxy all connection failures from the individual service managers.\n this.kernelspecs.connectionFailure.connect(this._onConnectionFailure, this);\n this.sessions.connectionFailure.connect(this._onConnectionFailure, this);\n this.terminals.connectionFailure.connect(this._onConnectionFailure, this);\n // Define promises that need to be resolved before service manager is ready.\n const readyList = [this.sessions.ready, this.kernelspecs.ready];\n if (this.terminals.isAvailable()) {\n readyList.push(this.terminals.ready);\n }\n this._readyPromise = Promise.all(readyList).then(() => {\n this._isReady = true;\n });\n }\n /**\n * A signal emitted when there is a connection failure with the kernel.\n */\n get connectionFailure() {\n return this._connectionFailure;\n }\n /**\n * Test whether the service manager is disposed.\n */\n get isDisposed() {\n return this._isDisposed;\n }\n /**\n * Dispose of the resources used by the manager.\n */\n dispose() {\n if (this.isDisposed) {\n return;\n }\n this._isDisposed = true;\n signaling_1.Signal.clearData(this);\n this.contents.dispose();\n this.events.dispose();\n this.sessions.dispose();\n this.terminals.dispose();\n }\n /**\n * Test whether the manager is ready.\n */\n get isReady() {\n return this._isReady;\n }\n /**\n * A promise that fulfills when the manager is ready.\n */\n get ready() {\n return this._readyPromise;\n }\n _onConnectionFailure(sender, err) {\n this._connectionFailure.emit(err);\n }\n}\nexports.ServiceManager = ServiceManager;\n//# sourceMappingURL=manager.js.map","\"use strict\";\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.NbConvertManager = void 0;\nconst coreutils_1 = require(\"@jupyterlab/coreutils\");\nconst serverconnection_1 = require(\"../serverconnection\");\nconst coreutils_2 = require(\"@lumino/coreutils\");\n/**\n * The url for the lab nbconvert service.\n */\nconst NBCONVERT_SETTINGS_URL = 'api/nbconvert';\n/**\n * The nbconvert API service manager.\n */\nclass NbConvertManager {\n /**\n * Create a new nbconvert manager.\n */\n constructor(options = {}) {\n var _a;\n this._exportFormats = null;\n this.serverSettings =\n (_a = options.serverSettings) !== null && _a !== void 0 ? _a : serverconnection_1.ServerConnection.makeSettings();\n }\n /**\n * Fetch and cache the export formats from the expensive nbconvert handler.\n */\n async fetchExportFormats() {\n this._requestingFormats = new coreutils_2.PromiseDelegate();\n this._exportFormats = null;\n const base = this.serverSettings.baseUrl;\n const url = coreutils_1.URLExt.join(base, NBCONVERT_SETTINGS_URL);\n const { serverSettings } = this;\n const response = await serverconnection_1.ServerConnection.makeRequest(url, {}, serverSettings);\n if (response.status !== 200) {\n const err = await serverconnection_1.ServerConnection.ResponseError.create(response);\n throw err;\n }\n const data = await response.json();\n const exportList = {};\n const keys = Object.keys(data);\n keys.forEach(function (key) {\n const mimeType = data[key].output_mimetype;\n exportList[key] = { output_mimetype: mimeType };\n });\n this._exportFormats = exportList;\n this._requestingFormats.resolve(exportList);\n return exportList;\n }\n /**\n * Get the list of export formats, preferring pre-cached ones.\n */\n async getExportFormats(force = true) {\n if (this._requestingFormats) {\n return this._requestingFormats.promise;\n }\n if (force || !this._exportFormats) {\n return await this.fetchExportFormats();\n }\n return this._exportFormats;\n }\n}\nexports.NbConvertManager = NbConvertManager;\n//# sourceMappingURL=index.js.map","\"use strict\";\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.ServerConnection = void 0;\nconst coreutils_1 = require(\"@jupyterlab/coreutils\");\nlet WEBSOCKET;\nif (typeof window === 'undefined') {\n // Mangle the require statements so it does not get picked up in the\n // browser assets.\n WEBSOCKET = require('ws');\n}\nelse {\n WEBSOCKET = WebSocket;\n}\n/**\n * The namespace for ServerConnection functions.\n *\n * #### Notes\n * This is only intended to manage communication with the Jupyter server.\n *\n * The default values can be used in a JupyterLab or Jupyter Notebook context.\n *\n * We use `token` authentication if available, falling back on an XSRF\n * cookie if one has been provided on the `document`.\n *\n * A content type of `'application/json'` is added when using authentication\n * and there is no body data to allow the server to prevent malicious forms.\n */\nvar ServerConnection;\n(function (ServerConnection) {\n /**\n * Create a settings object given a subset of options.\n *\n * @param options - An optional partial set of options.\n *\n * @returns The full settings object.\n */\n function makeSettings(options) {\n return Private.makeSettings(options);\n }\n ServerConnection.makeSettings = makeSettings;\n /**\n * Make an request to the notebook server.\n *\n * @param url - The url for the request.\n *\n * @param init - The initialization options for the request.\n *\n * @param settings - The server settings to apply to the request.\n *\n * @returns a Promise that resolves with the response.\n *\n * @throws If the url of the request is not a notebook server url.\n *\n * #### Notes\n * The `url` must start with `settings.baseUrl`. The `init` settings are\n * merged with `settings.init`, with `init` taking precedence.\n * The headers in the two objects are not merged.\n * If there is no body data, we set the content type to `application/json`\n * because it is required by the Notebook server.\n */\n function makeRequest(url, init, settings) {\n return Private.handleRequest(url, init, settings);\n }\n ServerConnection.makeRequest = makeRequest;\n /**\n * A wrapped error for a fetch response.\n */\n class ResponseError extends Error {\n /**\n * Create a ResponseError from a response, handling the traceback and message\n * as appropriate.\n *\n * @param response The response object.\n *\n * @returns A promise that resolves with a `ResponseError` object.\n */\n static async create(response) {\n try {\n const data = await response.json();\n const { message, traceback } = data;\n if (traceback) {\n console.error(traceback);\n }\n return new ResponseError(response, message !== null && message !== void 0 ? message : ResponseError._defaultMessage(response), traceback !== null && traceback !== void 0 ? traceback : '');\n }\n catch (e) {\n console.debug(e);\n return new ResponseError(response);\n }\n }\n /**\n * Create a new response error.\n */\n constructor(response, message = ResponseError._defaultMessage(response), traceback = '') {\n super(message);\n this.response = response;\n this.traceback = traceback;\n }\n static _defaultMessage(response) {\n return `Invalid response: ${response.status} ${response.statusText}`;\n }\n }\n ServerConnection.ResponseError = ResponseError;\n /**\n * A wrapped error for a network error.\n */\n class NetworkError extends TypeError {\n /**\n * Create a new network error.\n */\n constructor(original) {\n super(original.message);\n this.stack = original.stack;\n }\n }\n ServerConnection.NetworkError = NetworkError;\n})(ServerConnection = exports.ServerConnection || (exports.ServerConnection = {}));\n/**\n * The namespace for module private data.\n */\nvar Private;\n(function (Private) {\n /**\n * Handle the server connection settings, returning a new value.\n */\n function makeSettings(options = {}) {\n var _a;\n const pageBaseUrl = coreutils_1.PageConfig.getBaseUrl();\n const pageWsUrl = coreutils_1.PageConfig.getWsUrl();\n const baseUrl = coreutils_1.URLExt.normalize(options.baseUrl) || pageBaseUrl;\n let wsUrl = options.wsUrl;\n // Prefer the default wsUrl if we are using the default baseUrl.\n if (!wsUrl && baseUrl === pageBaseUrl) {\n wsUrl = pageWsUrl;\n }\n // Otherwise convert the baseUrl to a wsUrl if possible.\n if (!wsUrl && baseUrl.indexOf('http') === 0) {\n wsUrl = 'ws' + baseUrl.slice(4);\n }\n // Otherwise fall back on the default wsUrl.\n wsUrl = wsUrl !== null && wsUrl !== void 0 ? wsUrl : pageWsUrl;\n return {\n init: { cache: 'no-store', credentials: 'same-origin' },\n fetch,\n Headers,\n Request,\n WebSocket: WEBSOCKET,\n token: coreutils_1.PageConfig.getToken(),\n appUrl: coreutils_1.PageConfig.getOption('appUrl'),\n appendToken: typeof window === 'undefined' ||\n (typeof process !== 'undefined' &&\n ((_a = process === null || process === void 0 ? void 0 : process.env) === null || _a === void 0 ? void 0 : _a.JEST_WORKER_ID) !== undefined) ||\n coreutils_1.URLExt.getHostName(pageBaseUrl) !== coreutils_1.URLExt.getHostName(wsUrl),\n ...options,\n baseUrl,\n wsUrl\n };\n }\n Private.makeSettings = makeSettings;\n /**\n * Handle a request.\n *\n * @param url - The url for the request.\n *\n * @param init - The overrides for the request init.\n *\n * @param settings - The settings object for the request.\n *\n * #### Notes\n * The `url` must start with `settings.baseUrl`. The `init` settings\n * take precedence over `settings.init`.\n */\n function handleRequest(url, init, settings) {\n var _a;\n // Handle notebook server requests.\n if (url.indexOf(settings.baseUrl) !== 0) {\n throw new Error('Can only be used for notebook server requests');\n }\n // Use explicit cache buster when `no-store` is set since\n // not all browsers use it properly.\n const cache = (_a = init.cache) !== null && _a !== void 0 ? _a : settings.init.cache;\n if (cache === 'no-store') {\n // https://developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequest/Using_XMLHttpRequest#Bypassing_the_cache\n url += (/\\?/.test(url) ? '&' : '?') + new Date().getTime();\n }\n const request = new settings.Request(url, { ...settings.init, ...init });\n // Handle authentication. Authentication can be overdetermined by\n // settings token and XSRF token.\n let authenticated = false;\n if (settings.token) {\n authenticated = true;\n request.headers.append('Authorization', `token ${settings.token}`);\n }\n if (typeof document !== 'undefined' && (document === null || document === void 0 ? void 0 : document.cookie)) {\n const xsrfToken = getCookie('_xsrf');\n if (xsrfToken !== undefined) {\n authenticated = true;\n request.headers.append('X-XSRFToken', xsrfToken);\n }\n }\n // Set the content type if there is no given data and we are\n // using an authenticated connection.\n if (!request.headers.has('Content-Type') && authenticated) {\n request.headers.set('Content-Type', 'application/json');\n }\n // Use `call` to avoid a `TypeError` in the browser.\n return settings.fetch.call(null, request).catch((e) => {\n // Convert the TypeError into a more specific error.\n throw new ServerConnection.NetworkError(e);\n });\n // TODO: *this* is probably where we need a system-wide connectionFailure\n // signal we can hook into.\n }\n Private.handleRequest = handleRequest;\n /**\n * Get a cookie from the document.\n */\n function getCookie(name) {\n // From http://www.tornadoweb.org/en/stable/guide/security.html\n const matches = document.cookie.match('\\\\b' + name + '=([^;]*)\\\\b');\n return matches === null || matches === void 0 ? void 0 : matches[1];\n }\n})(Private || (Private = {}));\n//# sourceMappingURL=serverconnection.js.map","\"use strict\";\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.SessionConnection = void 0;\nconst signaling_1 = require(\"@lumino/signaling\");\nconst __1 = require(\"..\");\nconst restapi_1 = require(\"./restapi\");\nconst coreutils_1 = require(\"@lumino/coreutils\");\n/**\n * Session object for accessing the session REST api. The session\n * should be used to start kernels and then shut them down -- for\n * all other kernel operations, the kernel object should be used.\n */\nclass SessionConnection {\n /**\n * Construct a new session.\n */\n constructor(options) {\n var _a, _b, _c, _d;\n this._id = '';\n this._path = '';\n this._name = '';\n this._type = '';\n this._kernel = null;\n this._isDisposed = false;\n this._disposed = new signaling_1.Signal(this);\n this._kernelChanged = new signaling_1.Signal(this);\n this._statusChanged = new signaling_1.Signal(this);\n this._connectionStatusChanged = new signaling_1.Signal(this);\n this._pendingInput = new signaling_1.Signal(this);\n this._iopubMessage = new signaling_1.Signal(this);\n this._unhandledMessage = new signaling_1.Signal(this);\n this._anyMessage = new signaling_1.Signal(this);\n this._propertyChanged = new signaling_1.Signal(this);\n this._id = options.model.id;\n this._name = options.model.name;\n this._path = options.model.path;\n this._type = options.model.type;\n this._username = (_a = options.username) !== null && _a !== void 0 ? _a : '';\n this._clientId = (_b = options.clientId) !== null && _b !== void 0 ? _b : coreutils_1.UUID.uuid4();\n this._connectToKernel = options.connectToKernel;\n this._kernelConnectionOptions = (_c = options.kernelConnectionOptions) !== null && _c !== void 0 ? _c : {};\n this.serverSettings =\n (_d = options.serverSettings) !== null && _d !== void 0 ? _d : __1.ServerConnection.makeSettings();\n this.setupKernel(options.model.kernel);\n }\n /**\n * A signal emitted when the session is disposed.\n */\n get disposed() {\n return this._disposed;\n }\n /**\n * A signal emitted when the kernel changes.\n */\n get kernelChanged() {\n return this._kernelChanged;\n }\n /**\n * A signal proxied from the connection about the kernel status.\n */\n get statusChanged() {\n return this._statusChanged;\n }\n /**\n * A signal proxied from the kernel about the connection status.\n */\n get connectionStatusChanged() {\n return this._connectionStatusChanged;\n }\n /**\n * A signal proxied from the kernel pending input.\n */\n get pendingInput() {\n return this._pendingInput;\n }\n /**\n * A signal proxied from the kernel about iopub kernel messages.\n */\n get iopubMessage() {\n return this._iopubMessage;\n }\n /**\n * A signal proxied from the kernel for an unhandled kernel message.\n */\n get unhandledMessage() {\n return this._unhandledMessage;\n }\n /**\n * A signal proxied from the kernel emitted for any kernel message.\n *\n * #### Notes\n * The behavior is undefined if the message is modified during message\n * handling. As such, it should be treated as read-only.\n */\n get anyMessage() {\n return this._anyMessage;\n }\n /**\n * A signal emitted when a session property changes.\n */\n get propertyChanged() {\n return this._propertyChanged;\n }\n /**\n * Get the session id.\n */\n get id() {\n return this._id;\n }\n /**\n * Get the session kernel connection object.\n *\n * #### Notes\n * This is a read-only property, and can be altered by [changeKernel].\n */\n get kernel() {\n return this._kernel;\n }\n /**\n * Get the session path.\n */\n get path() {\n return this._path;\n }\n /**\n * Get the session type.\n */\n get type() {\n return this._type;\n }\n /**\n * Get the session name.\n */\n get name() {\n return this._name;\n }\n /**\n * Get the model associated with the session.\n */\n get model() {\n return {\n id: this.id,\n kernel: this.kernel && { id: this.kernel.id, name: this.kernel.name },\n path: this._path,\n type: this._type,\n name: this._name\n };\n }\n /**\n * Test whether the session has been disposed.\n */\n get isDisposed() {\n return this._isDisposed;\n }\n /**\n * Update the session based on a session model from the server.\n *\n * #### Notes\n * This only updates this session connection instance. Use `setPath`,\n * `setName`, `setType`, and `changeKernel` to change the session values on\n * the server.\n */\n update(model) {\n const oldModel = this.model;\n this._path = model.path;\n this._name = model.name;\n this._type = model.type;\n if ((this._kernel === null && model.kernel !== null) ||\n (this._kernel !== null && model.kernel === null) ||\n (this._kernel !== null &&\n model.kernel !== null &&\n this._kernel.id !== model.kernel.id)) {\n if (this._kernel !== null) {\n this._kernel.dispose();\n }\n const oldValue = this._kernel || null;\n this.setupKernel(model.kernel);\n const newValue = this._kernel || null;\n this._kernelChanged.emit({ name: 'kernel', oldValue, newValue });\n }\n this._handleModelChange(oldModel);\n }\n /**\n * Dispose of the resources held by the session.\n */\n dispose() {\n if (this.isDisposed) {\n return;\n }\n this._isDisposed = true;\n this._disposed.emit();\n if (this._kernel) {\n this._kernel.dispose();\n const oldValue = this._kernel;\n this._kernel = null;\n const newValue = this._kernel;\n this._kernelChanged.emit({ name: 'kernel', oldValue, newValue });\n }\n signaling_1.Signal.clearData(this);\n }\n /**\n * Change the session path.\n *\n * @param path - The new session path.\n *\n * @returns A promise that resolves when the session has renamed.\n *\n * #### Notes\n * This uses the Jupyter REST API, and the response is validated.\n * The promise is fulfilled on a valid response and rejected otherwise.\n */\n async setPath(path) {\n if (this.isDisposed) {\n throw new Error('Session is disposed');\n }\n await this._patch({ path });\n }\n /**\n * Change the session name.\n */\n async setName(name) {\n if (this.isDisposed) {\n throw new Error('Session is disposed');\n }\n await this._patch({ name });\n }\n /**\n * Change the session type.\n */\n async setType(type) {\n if (this.isDisposed) {\n throw new Error('Session is disposed');\n }\n await this._patch({ type });\n }\n /**\n * Change the kernel.\n *\n * @param options - The name or id of the new kernel.\n *\n * #### Notes\n * This shuts down the existing kernel and creates a new kernel,\n * keeping the existing session ID and session path.\n */\n async changeKernel(options) {\n if (this.isDisposed) {\n throw new Error('Session is disposed');\n }\n await this._patch({ kernel: options });\n return this.kernel;\n }\n /**\n * Kill the kernel and shutdown the session.\n *\n * @returns - The promise fulfilled on a valid response from the server.\n *\n * #### Notes\n * Uses the [Jupyter Notebook API](https://petstore.swagger.io/?url=https://raw.githubusercontent.com/jupyter-server/jupyter_server/main/jupyter_server/services/api/api.yaml#!/sessions), and validates the response.\n * Disposes of the session and emits a [sessionDied] signal on success.\n */\n async shutdown() {\n if (this.isDisposed) {\n throw new Error('Session is disposed');\n }\n await (0, restapi_1.shutdownSession)(this.id, this.serverSettings);\n this.dispose();\n }\n /**\n * Create a new kernel connection and connect to its signals.\n *\n * #### Notes\n * This method is not meant to be subclassed.\n */\n setupKernel(model) {\n if (model === null) {\n this._kernel = null;\n return;\n }\n const kc = this._connectToKernel({\n ...this._kernelConnectionOptions,\n model,\n username: this._username,\n clientId: this._clientId,\n serverSettings: this.serverSettings\n });\n this._kernel = kc;\n kc.statusChanged.connect(this.onKernelStatus, this);\n kc.connectionStatusChanged.connect(this.onKernelConnectionStatus, this);\n kc.pendingInput.connect(this.onPendingInput, this);\n kc.unhandledMessage.connect(this.onUnhandledMessage, this);\n kc.iopubMessage.connect(this.onIOPubMessage, this);\n kc.anyMessage.connect(this.onAnyMessage, this);\n }\n /**\n * Handle to changes in the Kernel status.\n */\n onKernelStatus(sender, state) {\n this._statusChanged.emit(state);\n }\n /**\n * Handle to changes in the Kernel status.\n */\n onKernelConnectionStatus(sender, state) {\n this._connectionStatusChanged.emit(state);\n }\n /**\n * Handle a change in the pendingInput.\n */\n onPendingInput(sender, state) {\n this._pendingInput.emit(state);\n }\n /**\n * Handle iopub kernel messages.\n */\n onIOPubMessage(sender, msg) {\n this._iopubMessage.emit(msg);\n }\n /**\n * Handle unhandled kernel messages.\n */\n onUnhandledMessage(sender, msg) {\n this._unhandledMessage.emit(msg);\n }\n /**\n * Handle any kernel messages.\n */\n onAnyMessage(sender, args) {\n this._anyMessage.emit(args);\n }\n /**\n * Send a PATCH to the server, updating the session path or the kernel.\n */\n async _patch(body) {\n const model = await (0, restapi_1.updateSession)({ ...body, id: this._id }, this.serverSettings);\n this.update(model);\n return model;\n }\n /**\n * Handle a change to the model.\n */\n _handleModelChange(oldModel) {\n if (oldModel.name !== this._name) {\n this._propertyChanged.emit('name');\n }\n if (oldModel.type !== this._type) {\n this._propertyChanged.emit('type');\n }\n if (oldModel.path !== this._path) {\n this._propertyChanged.emit('path');\n }\n }\n}\nexports.SessionConnection = SessionConnection;\n//# sourceMappingURL=default.js.map","\"use strict\";\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\nvar __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {\n if (k2 === undefined) k2 = k;\n var desc = Object.getOwnPropertyDescriptor(m, k);\n if (!desc || (\"get\" in desc ? !m.__esModule : desc.writable || desc.configurable)) {\n desc = { enumerable: true, get: function() { return m[k]; } };\n }\n Object.defineProperty(o, k2, desc);\n}) : (function(o, m, k, k2) {\n if (k2 === undefined) k2 = k;\n o[k2] = m[k];\n}));\nvar __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {\n Object.defineProperty(o, \"default\", { enumerable: true, value: v });\n}) : function(o, v) {\n o[\"default\"] = v;\n});\nvar __importStar = (this && this.__importStar) || function (mod) {\n if (mod && mod.__esModule) return mod;\n var result = {};\n if (mod != null) for (var k in mod) if (k !== \"default\" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);\n __setModuleDefault(result, mod);\n return result;\n};\nvar __exportStar = (this && this.__exportStar) || function(m, exports) {\n for (var p in m) if (p !== \"default\" && !Object.prototype.hasOwnProperty.call(exports, p)) __createBinding(exports, m, p);\n};\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.SessionAPI = exports.Session = void 0;\nconst Session = __importStar(require(\"./session\"));\nexports.Session = Session;\nconst SessionAPI = __importStar(require(\"./restapi\"));\nexports.SessionAPI = SessionAPI;\n__exportStar(require(\"./manager\"), exports);\n//# sourceMappingURL=index.js.map","\"use strict\";\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.SessionManager = void 0;\nconst polling_1 = require(\"@lumino/polling\");\nconst signaling_1 = require(\"@lumino/signaling\");\nconst serverconnection_1 = require(\"../serverconnection\");\nconst basemanager_1 = require(\"../basemanager\");\nconst default_1 = require(\"./default\");\nconst restapi_1 = require(\"./restapi\");\n/**\n * An implementation of a session manager.\n */\nclass SessionManager extends basemanager_1.BaseManager {\n /**\n * Construct a new session manager.\n *\n * @param options - The default options for each session.\n */\n constructor(options) {\n var _a;\n super(options);\n this._isReady = false;\n this._sessionConnections = new Set();\n this._models = new Map();\n this._runningChanged = new signaling_1.Signal(this);\n this._connectionFailure = new signaling_1.Signal(this);\n // We define these here so they bind `this` correctly\n this._connectToKernel = (options) => {\n return this._kernelManager.connectTo(options);\n };\n this._kernelManager = options.kernelManager;\n // Start model polling with exponential backoff.\n this._pollModels = new polling_1.Poll({\n auto: false,\n factory: () => this.requestRunning(),\n frequency: {\n interval: 10 * 1000,\n backoff: true,\n max: 300 * 1000\n },\n name: `@jupyterlab/services:SessionManager#models`,\n standby: (_a = options.standby) !== null && _a !== void 0 ? _a : 'when-hidden'\n });\n // Initialize internal data.\n this._ready = (async () => {\n await this._pollModels.start();\n await this._pollModels.tick;\n if (this._kernelManager.isActive) {\n await this._kernelManager.ready;\n }\n this._isReady = true;\n })();\n }\n /**\n * Test whether the manager is ready.\n */\n get isReady() {\n return this._isReady;\n }\n /**\n * A promise that fulfills when the manager is ready.\n */\n get ready() {\n return this._ready;\n }\n /**\n * A signal emitted when the running sessions change.\n */\n get runningChanged() {\n return this._runningChanged;\n }\n /**\n * A signal emitted when there is a connection failure.\n */\n get connectionFailure() {\n return this._connectionFailure;\n }\n /**\n * Dispose of the resources used by the manager.\n */\n dispose() {\n if (this.isDisposed) {\n return;\n }\n this._models.clear();\n this._sessionConnections.forEach(x => x.dispose());\n this._pollModels.dispose();\n super.dispose();\n }\n /*\n * Connect to a running session. See also [[connectToSession]].\n */\n connectTo(options) {\n const sessionConnection = new default_1.SessionConnection({\n ...options,\n connectToKernel: this._connectToKernel,\n serverSettings: this.serverSettings\n });\n this._onStarted(sessionConnection);\n if (!this._models.has(options.model.id)) {\n // We trust the user to connect to an existing session, but we verify\n // asynchronously.\n void this.refreshRunning().catch(() => {\n /* no-op */\n });\n }\n return sessionConnection;\n }\n /**\n * Create an iterator over the most recent running sessions.\n *\n * @returns A new iterator over the running sessions.\n */\n running() {\n return this._models.values();\n }\n /**\n * Force a refresh of the running sessions.\n *\n * @returns A promise that with the list of running sessions.\n *\n * #### Notes\n * This is not typically meant to be called by the user, since the\n * manager maintains its own internal state.\n */\n async refreshRunning() {\n await this._pollModels.refresh();\n await this._pollModels.tick;\n }\n /**\n * Start a new session. See also [[startNewSession]].\n *\n * @param createOptions - Options for creating the session\n *\n * @param connectOptions - Options for connecting to the session\n */\n async startNew(createOptions, connectOptions = {}) {\n const model = await (0, restapi_1.startSession)(createOptions, this.serverSettings);\n await this.refreshRunning();\n return this.connectTo({ ...connectOptions, model });\n }\n /**\n * Shut down a session by id.\n */\n async shutdown(id) {\n await (0, restapi_1.shutdownSession)(id, this.serverSettings);\n await this.refreshRunning();\n }\n /**\n * Shut down all sessions.\n *\n * @returns A promise that resolves when all of the kernels are shut down.\n */\n async shutdownAll() {\n // Update the list of models to make sure our list is current.\n await this.refreshRunning();\n // Shut down all models.\n await Promise.all([...this._models.keys()].map(id => (0, restapi_1.shutdownSession)(id, this.serverSettings)));\n // Update the list of models to clear out our state.\n await this.refreshRunning();\n }\n /**\n * Find a session associated with a path and stop it if it is the only session\n * using that kernel.\n *\n * @param path - The path in question.\n *\n * @returns A promise that resolves when the relevant sessions are stopped.\n */\n async stopIfNeeded(path) {\n try {\n const sessions = await (0, restapi_1.listRunning)(this.serverSettings);\n const matches = sessions.filter(value => value.path === path);\n if (matches.length === 1) {\n const id = matches[0].id;\n await this.shutdown(id);\n }\n }\n catch (error) {\n /* Always succeed. */\n }\n }\n /**\n * Find a session by id.\n */\n async findById(id) {\n if (this._models.has(id)) {\n return this._models.get(id);\n }\n await this.refreshRunning();\n return this._models.get(id);\n }\n /**\n * Find a session by path.\n */\n async findByPath(path) {\n for (const m of this._models.values()) {\n if (m.path === path) {\n return m;\n }\n }\n await this.refreshRunning();\n for (const m of this._models.values()) {\n if (m.path === path) {\n return m;\n }\n }\n return undefined;\n }\n /**\n * Execute a request to the server to poll running kernels and update state.\n */\n async requestRunning() {\n var _a, _b;\n let models;\n try {\n models = await (0, restapi_1.listRunning)(this.serverSettings);\n }\n catch (err) {\n // Handle network errors, as well as cases where we are on a\n // JupyterHub and the server is not running. JupyterHub returns a\n // 503 (<2.0) or 424 (>2.0) in that case.\n if (err instanceof serverconnection_1.ServerConnection.NetworkError ||\n ((_a = err.response) === null || _a === void 0 ? void 0 : _a.status) === 503 ||\n ((_b = err.response) === null || _b === void 0 ? void 0 : _b.status) === 424) {\n this._connectionFailure.emit(err);\n }\n throw err;\n }\n if (this.isDisposed) {\n return;\n }\n if (this._models.size === models.length &&\n models.every(model => {\n var _a, _b, _c, _d;\n const existing = this._models.get(model.id);\n if (!existing) {\n return false;\n }\n return (((_a = existing.kernel) === null || _a === void 0 ? void 0 : _a.id) === ((_b = model.kernel) === null || _b === void 0 ? void 0 : _b.id) &&\n ((_c = existing.kernel) === null || _c === void 0 ? void 0 : _c.name) === ((_d = model.kernel) === null || _d === void 0 ? void 0 : _d.name) &&\n existing.name === model.name &&\n existing.path === model.path &&\n existing.type === model.type);\n })) {\n // Identical models list (presuming models does not contain duplicate\n // ids), so just return\n return;\n }\n this._models = new Map(models.map(x => [x.id, x]));\n this._sessionConnections.forEach(sc => {\n if (this._models.has(sc.id)) {\n sc.update(this._models.get(sc.id));\n }\n else {\n sc.dispose();\n }\n });\n this._runningChanged.emit(models);\n }\n /**\n * Handle a session starting.\n */\n _onStarted(sessionConnection) {\n this._sessionConnections.add(sessionConnection);\n sessionConnection.disposed.connect(this._onDisposed, this);\n sessionConnection.propertyChanged.connect(this._onChanged, this);\n sessionConnection.kernelChanged.connect(this._onChanged, this);\n }\n _onDisposed(sessionConnection) {\n this._sessionConnections.delete(sessionConnection);\n // A session termination emission could mean the server session is deleted,\n // or that the session JS object is disposed and the session still exists on\n // the server, so we refresh from the server to make sure we reflect the\n // server state.\n void this.refreshRunning().catch(() => {\n /* no-op */\n });\n }\n _onChanged() {\n void this.refreshRunning().catch(() => {\n /* no-op */\n });\n }\n}\nexports.SessionManager = SessionManager;\n/**\n * The namespace for `SessionManager` class statics.\n */\n(function (SessionManager) {\n /**\n * A no-op session manager to be used when starting sessions is not supported.\n */\n class NoopManager extends SessionManager {\n constructor() {\n super(...arguments);\n this._readyPromise = new Promise(() => {\n /* no-op */\n });\n }\n /**\n * Whether the manager is active.\n */\n get isActive() {\n return false;\n }\n /**\n * Used for testing.\n */\n get parentReady() {\n return super.ready;\n }\n /**\n * Start a new session - throw an error since it is not supported.\n */\n async startNew(createOptions, connectOptions = {}) {\n return Promise.reject(new Error('Not implemented in no-op Session Manager'));\n }\n /*\n * Connect to a running session - throw an error since it is not supported.\n */\n connectTo(options) {\n throw Error('Not implemented in no-op Session Manager');\n }\n /**\n * A promise that fulfills when the manager is ready (never).\n */\n get ready() {\n return this.parentReady.then(() => this._readyPromise);\n }\n /**\n * Shut down a session by id - throw an error since it is not supported.\n */\n async shutdown(id) {\n return Promise.reject(new Error('Not implemented in no-op Session Manager'));\n }\n /**\n * Execute a request to the server to poll running sessions and update state.\n */\n async requestRunning() {\n return Promise.resolve();\n }\n }\n SessionManager.NoopManager = NoopManager;\n})(SessionManager = exports.SessionManager || (exports.SessionManager = {}));\n//# sourceMappingURL=manager.js.map","\"use strict\";\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.updateSession = exports.startSession = exports.getSessionModel = exports.shutdownSession = exports.getSessionUrl = exports.listRunning = exports.SESSION_SERVICE_URL = void 0;\nconst serverconnection_1 = require(\"../serverconnection\");\nconst coreutils_1 = require(\"@jupyterlab/coreutils\");\nconst validate_1 = require(\"./validate\");\n/**\n * The url for the session service.\n */\nexports.SESSION_SERVICE_URL = 'api/sessions';\n/**\n * List the running sessions.\n */\nasync function listRunning(settings = serverconnection_1.ServerConnection.makeSettings()) {\n const url = coreutils_1.URLExt.join(settings.baseUrl, exports.SESSION_SERVICE_URL);\n const response = await serverconnection_1.ServerConnection.makeRequest(url, {}, settings);\n if (response.status !== 200) {\n const err = await serverconnection_1.ServerConnection.ResponseError.create(response);\n throw err;\n }\n const data = await response.json();\n if (!Array.isArray(data)) {\n throw new Error('Invalid Session list');\n }\n data.forEach(m => {\n (0, validate_1.updateLegacySessionModel)(m);\n (0, validate_1.validateModel)(m);\n });\n return data;\n}\nexports.listRunning = listRunning;\n/**\n * Get a session url.\n */\nfunction getSessionUrl(baseUrl, id) {\n return coreutils_1.URLExt.join(baseUrl, exports.SESSION_SERVICE_URL, id);\n}\nexports.getSessionUrl = getSessionUrl;\n/**\n * Shut down a session by id.\n */\nasync function shutdownSession(id, settings = serverconnection_1.ServerConnection.makeSettings()) {\n var _a;\n const url = getSessionUrl(settings.baseUrl, id);\n const init = { method: 'DELETE' };\n const response = await serverconnection_1.ServerConnection.makeRequest(url, init, settings);\n if (response.status === 404) {\n const data = await response.json();\n const msg = (_a = data.message) !== null && _a !== void 0 ? _a : `The session \"${id}\"\" does not exist on the server`;\n console.warn(msg);\n }\n else if (response.status === 410) {\n throw new serverconnection_1.ServerConnection.ResponseError(response, 'The kernel was deleted but the session was not');\n }\n else if (response.status !== 204) {\n const err = await serverconnection_1.ServerConnection.ResponseError.create(response);\n throw err;\n }\n}\nexports.shutdownSession = shutdownSession;\n/**\n * Get a full session model from the server by session id string.\n */\nasync function getSessionModel(id, settings = serverconnection_1.ServerConnection.makeSettings()) {\n const url = getSessionUrl(settings.baseUrl, id);\n const response = await serverconnection_1.ServerConnection.makeRequest(url, {}, settings);\n if (response.status !== 200) {\n const err = await serverconnection_1.ServerConnection.ResponseError.create(response);\n throw err;\n }\n const data = await response.json();\n (0, validate_1.updateLegacySessionModel)(data);\n (0, validate_1.validateModel)(data);\n return data;\n}\nexports.getSessionModel = getSessionModel;\n/**\n * Create a new session, or return an existing session if the session path\n * already exists.\n */\nasync function startSession(options, settings = serverconnection_1.ServerConnection.makeSettings()) {\n const url = coreutils_1.URLExt.join(settings.baseUrl, exports.SESSION_SERVICE_URL);\n const init = {\n method: 'POST',\n body: JSON.stringify(options)\n };\n const response = await serverconnection_1.ServerConnection.makeRequest(url, init, settings);\n if (response.status !== 201) {\n const err = await serverconnection_1.ServerConnection.ResponseError.create(response);\n throw err;\n }\n const data = await response.json();\n (0, validate_1.updateLegacySessionModel)(data);\n (0, validate_1.validateModel)(data);\n return data;\n}\nexports.startSession = startSession;\n/**\n * Send a PATCH to the server, updating the session path or the kernel.\n */\nasync function updateSession(model, settings = serverconnection_1.ServerConnection.makeSettings()) {\n const url = getSessionUrl(settings.baseUrl, model.id);\n const init = {\n method: 'PATCH',\n body: JSON.stringify(model)\n };\n const response = await serverconnection_1.ServerConnection.makeRequest(url, init, settings);\n if (response.status !== 200) {\n const err = await serverconnection_1.ServerConnection.ResponseError.create(response);\n throw err;\n }\n const data = await response.json();\n (0, validate_1.updateLegacySessionModel)(data);\n (0, validate_1.validateModel)(data);\n return data;\n}\nexports.updateSession = updateSession;\n//# sourceMappingURL=restapi.js.map","\"use strict\";\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\nObject.defineProperty(exports, \"__esModule\", { value: true });\n//# sourceMappingURL=session.js.map","\"use strict\";\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.validateModels = exports.updateLegacySessionModel = exports.validateModel = void 0;\nconst validate_1 = require(\"../kernel/validate\");\nconst validate_2 = require(\"../validate\");\n/**\n * Validate an `Session.IModel` object.\n */\n// eslint-disable-next-line @typescript-eslint/explicit-module-boundary-types\nfunction validateModel(data) {\n (0, validate_2.validateProperty)(data, 'id', 'string');\n (0, validate_2.validateProperty)(data, 'type', 'string');\n (0, validate_2.validateProperty)(data, 'name', 'string');\n (0, validate_2.validateProperty)(data, 'path', 'string');\n (0, validate_2.validateProperty)(data, 'kernel', 'object');\n (0, validate_1.validateModel)(data.kernel);\n}\nexports.validateModel = validateModel;\n/**\n * Update model from legacy session data.\n */\n// eslint-disable-next-line @typescript-eslint/explicit-module-boundary-types\nfunction updateLegacySessionModel(data) {\n if (data.path === undefined && data.notebook !== undefined) {\n data.path = data.notebook.path;\n data.type = 'notebook';\n data.name = '';\n }\n}\nexports.updateLegacySessionModel = updateLegacySessionModel;\n/**\n * Validate an array of `Session.IModel` objects.\n */\nfunction validateModels(models) {\n if (!Array.isArray(models)) {\n throw new Error('Invalid session list');\n }\n models.forEach(d => validateModel(d));\n}\nexports.validateModels = validateModels;\n//# sourceMappingURL=validate.js.map","\"use strict\";\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.SettingManager = void 0;\nconst coreutils_1 = require(\"@jupyterlab/coreutils\");\nconst statedb_1 = require(\"@jupyterlab/statedb\");\nconst serverconnection_1 = require(\"../serverconnection\");\n/**\n * The url for the lab settings service.\n */\nconst SERVICE_SETTINGS_URL = 'api/settings';\n/**\n * The settings API service manager.\n */\nclass SettingManager extends statedb_1.DataConnector {\n /**\n * Create a new setting manager.\n */\n constructor(options = {}) {\n var _a;\n super();\n this.serverSettings =\n (_a = options.serverSettings) !== null && _a !== void 0 ? _a : serverconnection_1.ServerConnection.makeSettings();\n }\n /**\n * Fetch a plugin's settings.\n *\n * @param id - The plugin's ID.\n *\n * @returns A promise that resolves if successful.\n */\n async fetch(id) {\n if (!id) {\n throw new Error('Plugin `id` parameter is required for settings fetch.');\n }\n const { serverSettings } = this;\n const { baseUrl, appUrl } = serverSettings;\n const { makeRequest, ResponseError } = serverconnection_1.ServerConnection;\n const base = baseUrl + appUrl;\n const url = Private.url(base, id);\n const response = await makeRequest(url, {}, serverSettings);\n if (response.status !== 200) {\n const err = await ResponseError.create(response);\n throw err;\n }\n // Assert what type the server response is returning.\n return response.json();\n }\n /**\n * Fetch the list of all plugin setting bundles.\n *\n * @returns A promise that resolves if successful.\n */\n async list(query) {\n var _a, _b, _c, _d;\n const { serverSettings } = this;\n const { baseUrl, appUrl } = serverSettings;\n const { makeRequest, ResponseError } = serverconnection_1.ServerConnection;\n const base = baseUrl + appUrl;\n const url = Private.url(base, '', query === 'ids');\n const response = await makeRequest(url, {}, serverSettings);\n if (response.status !== 200) {\n throw new ResponseError(response);\n }\n const json = await response.json();\n const ids = (_b = (_a = json === null || json === void 0 ? void 0 : json['settings']) === null || _a === void 0 ? void 0 : _a.map((plugin) => plugin.id)) !== null && _b !== void 0 ? _b : [];\n let values = [];\n if (!query) {\n values =\n (_d = (_c = json === null || json === void 0 ? void 0 : json['settings']) === null || _c === void 0 ? void 0 : _c.map((plugin) => {\n plugin.data = { composite: {}, user: {} };\n return plugin;\n })) !== null && _d !== void 0 ? _d : [];\n }\n return { ids, values };\n }\n /**\n * Save a plugin's settings.\n *\n * @param id - The plugin's ID.\n *\n * @param raw - The user setting values as a raw string of JSON with comments.\n *\n * @returns A promise that resolves if successful.\n */\n async save(id, raw) {\n const { serverSettings } = this;\n const { baseUrl, appUrl } = serverSettings;\n const { makeRequest, ResponseError } = serverconnection_1.ServerConnection;\n const base = baseUrl + appUrl;\n const url = Private.url(base, id);\n // NOTE: 'raw' is JSON5 (not valid JSON), so we encode it as a string in a valid JSON body\n const init = { body: JSON.stringify({ raw }), method: 'PUT' };\n const response = await makeRequest(url, init, serverSettings);\n if (response.status !== 204) {\n throw new ResponseError(response);\n }\n }\n}\nexports.SettingManager = SettingManager;\n/**\n * A namespace for private data.\n */\nvar Private;\n(function (Private) {\n /**\n * Get the url for a plugin's settings.\n */\n function url(base, id, idsOnly) {\n const idsOnlyParam = idsOnly\n ? coreutils_1.URLExt.objectToQueryString({ ids_only: true })\n : '';\n return `${coreutils_1.URLExt.join(base, SERVICE_SETTINGS_URL, id)}${idsOnlyParam}`;\n }\n Private.url = url;\n})(Private || (Private = {}));\n//# sourceMappingURL=index.js.map","\"use strict\";\n/*\n * Copyright (c) Jupyter Development Team.\n * Distributed under the terms of the Modified BSD License.\n */\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.default = WebSocket;\n//# sourceMappingURL=ws.js.map","\"use strict\";\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.TerminalConnection = void 0;\nconst coreutils_1 = require(\"@jupyterlab/coreutils\");\nconst coreutils_2 = require(\"@lumino/coreutils\");\nconst signaling_1 = require(\"@lumino/signaling\");\nconst __1 = require(\"..\");\nconst restapi_1 = require(\"./restapi\");\n/**\n * An implementation of a terminal interface.\n */\nclass TerminalConnection {\n /**\n * Construct a new terminal session.\n */\n constructor(options) {\n var _a;\n /**\n * Create the terminal websocket connection and add socket status handlers.\n *\n * #### Notes\n * You are responsible for updating the connection status as appropriate.\n */\n this._createSocket = () => {\n this._errorIfDisposed();\n // Make sure the socket is clear\n this._clearSocket();\n // Update the connection status to reflect opening a new connection.\n this._updateConnectionStatus('connecting');\n const name = this._name;\n const settings = this.serverSettings;\n let url = coreutils_1.URLExt.join(settings.wsUrl, 'terminals', 'websocket', encodeURIComponent(name));\n // If token authentication is in use.\n const token = settings.token;\n if (settings.appendToken && token !== '') {\n url = url + `?token=${encodeURIComponent(token)}`;\n }\n this._ws = new settings.WebSocket(url);\n this._ws.onmessage = this._onWSMessage;\n this._ws.onclose = this._onWSClose;\n this._ws.onerror = this._onWSClose;\n };\n // Websocket messages events are defined as variables to bind `this`\n this._onWSMessage = (event) => {\n if (this._isDisposed) {\n return;\n }\n const data = JSON.parse(event.data);\n // Handle a disconnect message.\n if (data[0] === 'disconnect') {\n this.dispose();\n }\n if (this._connectionStatus === 'connecting') {\n // After reconnection, ignore all messages until a 'setup' message\n // before we are truly connected. Setting the connection status to\n // connected only then means that if we do not get a setup message\n // before our retry timeout, we will delete the websocket and try again.\n if (data[0] === 'setup') {\n this._updateConnectionStatus('connected');\n }\n return;\n }\n this._messageReceived.emit({\n type: data[0],\n content: data.slice(1)\n });\n };\n this._onWSClose = (event) => {\n console.warn(`Terminal websocket closed: ${event.code}`);\n if (!this.isDisposed) {\n this._reconnect();\n }\n };\n this._connectionStatus = 'connecting';\n this._connectionStatusChanged = new signaling_1.Signal(this);\n this._isDisposed = false;\n this._disposed = new signaling_1.Signal(this);\n this._messageReceived = new signaling_1.Signal(this);\n this._reconnectTimeout = null;\n this._ws = null;\n this._noOp = () => {\n /* no-op */\n };\n this._reconnectLimit = 7;\n this._reconnectAttempt = 0;\n this._pendingMessages = [];\n this._name = options.model.name;\n this.serverSettings =\n (_a = options.serverSettings) !== null && _a !== void 0 ? _a : __1.ServerConnection.makeSettings();\n this._createSocket();\n }\n /**\n * A signal emitted when the session is disposed.\n */\n get disposed() {\n return this._disposed;\n }\n /**\n * A signal emitted when a message is received from the server.\n */\n get messageReceived() {\n return this._messageReceived;\n }\n /**\n * Get the name of the terminal session.\n */\n get name() {\n return this._name;\n }\n /**\n * Get the model for the terminal session.\n */\n get model() {\n return { name: this._name };\n }\n /**\n * Test whether the session is disposed.\n */\n get isDisposed() {\n return this._isDisposed;\n }\n /**\n * Dispose of the resources held by the session.\n */\n dispose() {\n if (this._isDisposed) {\n return;\n }\n this._isDisposed = true;\n this._disposed.emit();\n this._updateConnectionStatus('disconnected');\n this._clearSocket();\n signaling_1.Signal.clearData(this);\n }\n /**\n * Send a message to the terminal session.\n *\n * #### Notes\n * If the connection is down, the message will be queued for sending when\n * the connection comes back up.\n */\n send(message) {\n this._sendMessage(message);\n }\n /**\n * Send a message on the websocket, or possibly queue for later sending.\n *\n * @param queue - whether to queue the message if it cannot be sent\n */\n _sendMessage(message, queue = true) {\n if (this._isDisposed || !message.content) {\n return;\n }\n if (this.connectionStatus === 'connected' && this._ws) {\n const msg = [message.type, ...message.content];\n this._ws.send(JSON.stringify(msg));\n }\n else if (queue) {\n this._pendingMessages.push(message);\n }\n else {\n throw new Error(`Could not send message: ${JSON.stringify(message)}`);\n }\n }\n /**\n * Send pending messages to the kernel.\n */\n _sendPending() {\n // We check to make sure we are still connected each time. For\n // example, if a websocket buffer overflows, it may close, so we should\n // stop sending messages.\n while (this.connectionStatus === 'connected' &&\n this._pendingMessages.length > 0) {\n this._sendMessage(this._pendingMessages[0], false);\n // We shift the message off the queue after the message is sent so that\n // if there is an exception, the message is still pending.\n this._pendingMessages.shift();\n }\n }\n /**\n * Reconnect to a terminal.\n *\n * #### Notes\n * This may try multiple times to reconnect to a terminal, and will sever\n * any existing connection.\n */\n reconnect() {\n this._errorIfDisposed();\n const result = new coreutils_2.PromiseDelegate();\n // Set up a listener for the connection status changing, which accepts or\n // rejects after the retries are done.\n const fulfill = (sender, status) => {\n if (status === 'connected') {\n result.resolve();\n this.connectionStatusChanged.disconnect(fulfill, this);\n }\n else if (status === 'disconnected') {\n result.reject(new Error('Terminal connection disconnected'));\n this.connectionStatusChanged.disconnect(fulfill, this);\n }\n };\n this.connectionStatusChanged.connect(fulfill, this);\n // Reset the reconnect limit so we start the connection attempts fresh\n this._reconnectAttempt = 0;\n // Start the reconnection process, which will also clear any existing\n // connection.\n this._reconnect();\n // Return the promise that should resolve on connection or reject if the\n // retries don't work.\n return result.promise;\n }\n /**\n * Attempt a connection if we have not exhausted connection attempts.\n */\n _reconnect() {\n this._errorIfDisposed();\n // Clear any existing reconnection attempt\n clearTimeout(this._reconnectTimeout);\n // Update the connection status and schedule a possible reconnection.\n if (this._reconnectAttempt < this._reconnectLimit) {\n this._updateConnectionStatus('connecting');\n // The first reconnect attempt should happen immediately, and subsequent\n // attempts should pick a random number in a growing range so that we\n // don't overload the server with synchronized reconnection attempts\n // across multiple kernels.\n const timeout = Private.getRandomIntInclusive(0, 1e3 * (Math.pow(2, this._reconnectAttempt) - 1));\n console.error(`Connection lost, reconnecting in ${Math.floor(timeout / 1000)} seconds.`);\n this._reconnectTimeout = setTimeout(this._createSocket, timeout);\n this._reconnectAttempt += 1;\n }\n else {\n this._updateConnectionStatus('disconnected');\n }\n // Clear the websocket event handlers and the socket itself.\n this._clearSocket();\n }\n /**\n * Forcefully clear the socket state.\n *\n * #### Notes\n * This will clear all socket state without calling any handlers and will\n * not update the connection status. If you call this method, you are\n * responsible for updating the connection status as needed and recreating\n * the socket if you plan to reconnect.\n */\n _clearSocket() {\n if (this._ws !== null) {\n // Clear the websocket event handlers and the socket itself.\n this._ws.onopen = this._noOp;\n this._ws.onclose = this._noOp;\n this._ws.onerror = this._noOp;\n this._ws.onmessage = this._noOp;\n this._ws.close();\n this._ws = null;\n }\n }\n /**\n * Shut down the terminal session.\n */\n async shutdown() {\n await (0, restapi_1.shutdownTerminal)(this.name, this.serverSettings);\n this.dispose();\n }\n /**\n * Clone the current terminal connection.\n */\n clone() {\n return new TerminalConnection(this);\n }\n /**\n * Handle connection status changes.\n */\n _updateConnectionStatus(connectionStatus) {\n if (this._connectionStatus === connectionStatus) {\n return;\n }\n this._connectionStatus = connectionStatus;\n // If we are not 'connecting', stop any reconnection attempts.\n if (connectionStatus !== 'connecting') {\n this._reconnectAttempt = 0;\n clearTimeout(this._reconnectTimeout);\n }\n // Send the pending messages if we just connected.\n if (connectionStatus === 'connected') {\n this._sendPending();\n }\n // Notify others that the connection status changed.\n this._connectionStatusChanged.emit(connectionStatus);\n }\n /**\n * Utility function to throw an error if this instance is disposed.\n */\n _errorIfDisposed() {\n if (this.isDisposed) {\n throw new Error('Terminal connection is disposed');\n }\n }\n /**\n * A signal emitted when the terminal connection status changes.\n */\n get connectionStatusChanged() {\n return this._connectionStatusChanged;\n }\n /**\n * The current connection status of the terminal connection.\n */\n get connectionStatus() {\n return this._connectionStatus;\n }\n}\nexports.TerminalConnection = TerminalConnection;\nvar Private;\n(function (Private) {\n /**\n * Get the url for a terminal.\n */\n function getTermUrl(baseUrl, name) {\n return coreutils_1.URLExt.join(baseUrl, restapi_1.TERMINAL_SERVICE_URL, encodeURIComponent(name));\n }\n Private.getTermUrl = getTermUrl;\n /**\n * Get a random integer between min and max, inclusive of both.\n *\n * #### Notes\n * From\n * https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/random#Getting_a_random_integer_between_two_values_inclusive\n *\n * From the MDN page: It might be tempting to use Math.round() to accomplish\n * that, but doing so would cause your random numbers to follow a non-uniform\n * distribution, which may not be acceptable for your needs.\n */\n function getRandomIntInclusive(min, max) {\n min = Math.ceil(min);\n max = Math.floor(max);\n return Math.floor(Math.random() * (max - min + 1)) + min;\n }\n Private.getRandomIntInclusive = getRandomIntInclusive;\n})(Private || (Private = {}));\n//# sourceMappingURL=default.js.map","\"use strict\";\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\nvar __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {\n if (k2 === undefined) k2 = k;\n var desc = Object.getOwnPropertyDescriptor(m, k);\n if (!desc || (\"get\" in desc ? !m.__esModule : desc.writable || desc.configurable)) {\n desc = { enumerable: true, get: function() { return m[k]; } };\n }\n Object.defineProperty(o, k2, desc);\n}) : (function(o, m, k, k2) {\n if (k2 === undefined) k2 = k;\n o[k2] = m[k];\n}));\nvar __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {\n Object.defineProperty(o, \"default\", { enumerable: true, value: v });\n}) : function(o, v) {\n o[\"default\"] = v;\n});\nvar __importStar = (this && this.__importStar) || function (mod) {\n if (mod && mod.__esModule) return mod;\n var result = {};\n if (mod != null) for (var k in mod) if (k !== \"default\" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);\n __setModuleDefault(result, mod);\n return result;\n};\nvar __exportStar = (this && this.__exportStar) || function(m, exports) {\n for (var p in m) if (p !== \"default\" && !Object.prototype.hasOwnProperty.call(exports, p)) __createBinding(exports, m, p);\n};\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.TerminalAPI = exports.Terminal = void 0;\nconst Terminal = __importStar(require(\"./terminal\"));\nexports.Terminal = Terminal;\nconst TerminalAPI = __importStar(require(\"./restapi\"));\nexports.TerminalAPI = TerminalAPI;\n__exportStar(require(\"./manager\"), exports);\n//# sourceMappingURL=index.js.map","\"use strict\";\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.TerminalManager = void 0;\nconst polling_1 = require(\"@lumino/polling\");\nconst signaling_1 = require(\"@lumino/signaling\");\nconst __1 = require(\"..\");\nconst basemanager_1 = require(\"../basemanager\");\nconst restapi_1 = require(\"./restapi\");\nconst default_1 = require(\"./default\");\n/**\n * A terminal session manager.\n */\nclass TerminalManager extends basemanager_1.BaseManager {\n /**\n * Construct a new terminal manager.\n */\n constructor(options = {}) {\n var _a;\n super(options);\n this._isReady = false;\n // As an optimization, we unwrap the models to just store the names.\n this._names = [];\n this._terminalConnections = new Set();\n this._runningChanged = new signaling_1.Signal(this);\n this._connectionFailure = new signaling_1.Signal(this);\n // Check if terminals are available\n if (!this.isAvailable()) {\n this._ready = Promise.reject('Terminals unavailable');\n this._ready.catch(_ => undefined);\n return;\n }\n // Start polling with exponential backoff.\n this._pollModels = new polling_1.Poll({\n auto: false,\n factory: () => this.requestRunning(),\n frequency: {\n interval: 10 * 1000,\n backoff: true,\n max: 300 * 1000\n },\n name: `@jupyterlab/services:TerminalManager#models`,\n standby: (_a = options.standby) !== null && _a !== void 0 ? _a : 'when-hidden'\n });\n // Initialize internal data.\n this._ready = (async () => {\n await this._pollModels.start();\n await this._pollModels.tick;\n this._isReady = true;\n })();\n }\n /**\n * Test whether the manager is ready.\n */\n get isReady() {\n return this._isReady;\n }\n /**\n * A promise that fulfills when the manager is ready.\n */\n get ready() {\n return this._ready;\n }\n /**\n * A signal emitted when the running terminals change.\n */\n get runningChanged() {\n return this._runningChanged;\n }\n /**\n * A signal emitted when there is a connection failure.\n */\n get connectionFailure() {\n return this._connectionFailure;\n }\n /**\n * Dispose of the resources used by the manager.\n */\n dispose() {\n if (this.isDisposed) {\n return;\n }\n this._names.length = 0;\n this._terminalConnections.forEach(x => x.dispose());\n this._pollModels.dispose();\n super.dispose();\n }\n /**\n * Whether the terminal service is available.\n */\n isAvailable() {\n return (0, restapi_1.isAvailable)();\n }\n /*\n * Connect to a running terminal.\n *\n * @param options - The options used to connect to the terminal.\n *\n * @returns The new terminal connection instance.\n *\n * #### Notes\n * The manager `serverSettings` will be used.\n */\n connectTo(options) {\n const terminalConnection = new default_1.TerminalConnection({\n ...options,\n serverSettings: this.serverSettings\n });\n this._onStarted(terminalConnection);\n if (!this._names.includes(options.model.name)) {\n // We trust the user to connect to an existing session, but we verify\n // asynchronously.\n void this.refreshRunning().catch(() => {\n /* no-op */\n });\n }\n return terminalConnection;\n }\n /**\n * Create an iterator over the most recent running terminals.\n *\n * @returns A new iterator over the running terminals.\n */\n running() {\n return this._models[Symbol.iterator]();\n }\n /**\n * Force a refresh of the running terminals.\n *\n * @returns A promise that with the list of running terminals.\n *\n * #### Notes\n * This is intended to be called only in response to a user action,\n * since the manager maintains its internal state.\n */\n async refreshRunning() {\n await this._pollModels.refresh();\n await this._pollModels.tick;\n }\n /**\n * Create a new terminal session.\n *\n * @param options - The options used to create the terminal.\n *\n * @returns A promise that resolves with the terminal connection instance.\n *\n * #### Notes\n * The manager `serverSettings` will be used unless overridden in the\n * options.\n */\n async startNew(options) {\n const model = await (0, restapi_1.startNew)(this.serverSettings, options === null || options === void 0 ? void 0 : options.name, options === null || options === void 0 ? void 0 : options.cwd);\n await this.refreshRunning();\n return this.connectTo({ model });\n }\n /**\n * Shut down a terminal session by name.\n */\n async shutdown(name) {\n await (0, restapi_1.shutdownTerminal)(name, this.serverSettings);\n await this.refreshRunning();\n }\n /**\n * Shut down all terminal sessions.\n *\n * @returns A promise that resolves when all of the sessions are shut down.\n */\n async shutdownAll() {\n // Update the list of models to make sure our list is current.\n await this.refreshRunning();\n // Shut down all models.\n await Promise.all(this._names.map(name => (0, restapi_1.shutdownTerminal)(name, this.serverSettings)));\n // Update the list of models to clear out our state.\n await this.refreshRunning();\n }\n /**\n * Execute a request to the server to poll running terminals and update state.\n */\n async requestRunning() {\n var _a, _b;\n let models;\n try {\n models = await (0, restapi_1.listRunning)(this.serverSettings);\n }\n catch (err) {\n // Handle network errors, as well as cases where we are on a\n // JupyterHub and the server is not running. JupyterHub returns a\n // 503 (<2.0) or 424 (>2.0) in that case.\n if (err instanceof __1.ServerConnection.NetworkError ||\n ((_a = err.response) === null || _a === void 0 ? void 0 : _a.status) === 503 ||\n ((_b = err.response) === null || _b === void 0 ? void 0 : _b.status) === 424) {\n this._connectionFailure.emit(err);\n }\n throw err;\n }\n if (this.isDisposed) {\n return;\n }\n const names = models.map(({ name }) => name).sort();\n if (names === this._names) {\n // Identical models list, so just return\n return;\n }\n this._names = names;\n this._terminalConnections.forEach(tc => {\n if (!names.includes(tc.name)) {\n tc.dispose();\n }\n });\n this._runningChanged.emit(this._models);\n }\n /**\n * Handle a session starting.\n */\n _onStarted(terminalConnection) {\n this._terminalConnections.add(terminalConnection);\n terminalConnection.disposed.connect(this._onDisposed, this);\n }\n /**\n * Handle a session terminating.\n */\n _onDisposed(terminalConnection) {\n this._terminalConnections.delete(terminalConnection);\n // Update the running models to make sure we reflect the server state\n void this.refreshRunning().catch(() => {\n /* no-op */\n });\n }\n get _models() {\n return this._names.map(name => {\n return { name };\n });\n }\n}\nexports.TerminalManager = TerminalManager;\n/**\n * The namespace for TerminalManager statics.\n */\n(function (TerminalManager) {\n /**\n * A no-op terminal manager to be used when starting terminals is not supported.\n */\n class NoopManager extends TerminalManager {\n constructor() {\n super(...arguments);\n this._readyPromise = new Promise(() => {\n /* no-op */\n });\n }\n /**\n * Whether the manager is active.\n */\n get isActive() {\n return false;\n }\n /**\n * Used for testing.\n */\n get parentReady() {\n return super.ready;\n }\n /**\n * A promise that fulfills when the manager is ready (never).\n */\n get ready() {\n return this.parentReady.then(() => this._readyPromise);\n }\n /**\n * Create a new terminal session - throw an error since it is not supported.\n *\n */\n async startNew(options) {\n return Promise.reject(new Error('Not implemented in no-op Terminal Manager'));\n }\n /*\n * Connect to a running terminal - throw an error since it is not supported.\n */\n connectTo(options) {\n throw Error('Not implemented in no-op Terminal Manager');\n }\n /**\n * Shut down a session by id - throw an error since it is not supported.\n */\n async shutdown(id) {\n return Promise.reject(new Error('Not implemented in no-op Terminal Manager'));\n }\n /**\n * Execute a request to the server to poll running sessions and update state.\n */\n async requestRunning() {\n return Promise.resolve();\n }\n }\n TerminalManager.NoopManager = NoopManager;\n})(TerminalManager = exports.TerminalManager || (exports.TerminalManager = {}));\n//# sourceMappingURL=manager.js.map","\"use strict\";\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.shutdownTerminal = exports.listRunning = exports.startNew = exports.isAvailable = exports.TERMINAL_SERVICE_URL = void 0;\nconst coreutils_1 = require(\"@jupyterlab/coreutils\");\nconst serverconnection_1 = require(\"../serverconnection\");\n/**\n * The url for the terminal service.\n */\nexports.TERMINAL_SERVICE_URL = 'api/terminals';\n/**\n * Whether the terminal service is available.\n */\nfunction isAvailable() {\n const available = String(coreutils_1.PageConfig.getOption('terminalsAvailable'));\n return available.toLowerCase() === 'true';\n}\nexports.isAvailable = isAvailable;\n/**\n * Start a new terminal session.\n *\n * @param settings - The server settings to use.\n *\n * @param name - The name of the target terminal.\n *\n * @param cwd - The path in which the terminal will start.\n *\n * @returns A promise that resolves with the session model.\n */\nasync function startNew(settings = serverconnection_1.ServerConnection.makeSettings(), name, cwd) {\n Private.errorIfNotAvailable();\n const url = coreutils_1.URLExt.join(settings.baseUrl, exports.TERMINAL_SERVICE_URL);\n const init = {\n method: 'POST',\n body: JSON.stringify({ name, cwd })\n };\n const response = await serverconnection_1.ServerConnection.makeRequest(url, init, settings);\n if (response.status !== 200) {\n const err = await serverconnection_1.ServerConnection.ResponseError.create(response);\n throw err;\n }\n const data = await response.json();\n // TODO: Validate model\n return data;\n}\nexports.startNew = startNew;\n/**\n * List the running terminal sessions.\n *\n * @param settings - The server settings to use.\n *\n * @returns A promise that resolves with the list of running session models.\n */\nasync function listRunning(settings = serverconnection_1.ServerConnection.makeSettings()) {\n Private.errorIfNotAvailable();\n const url = coreutils_1.URLExt.join(settings.baseUrl, exports.TERMINAL_SERVICE_URL);\n const response = await serverconnection_1.ServerConnection.makeRequest(url, {}, settings);\n if (response.status !== 200) {\n const err = await serverconnection_1.ServerConnection.ResponseError.create(response);\n throw err;\n }\n const data = await response.json();\n if (!Array.isArray(data)) {\n throw new Error('Invalid terminal list');\n }\n // TODO: validate each model\n return data;\n}\nexports.listRunning = listRunning;\n/**\n * Shut down a terminal session by name.\n *\n * @param name - The name of the target session.\n *\n * @param settings - The server settings to use.\n *\n * @returns A promise that resolves when the session is shut down.\n */\nasync function shutdownTerminal(name, settings = serverconnection_1.ServerConnection.makeSettings()) {\n var _a;\n Private.errorIfNotAvailable();\n const url = coreutils_1.URLExt.join(settings.baseUrl, exports.TERMINAL_SERVICE_URL, name);\n const init = { method: 'DELETE' };\n const response = await serverconnection_1.ServerConnection.makeRequest(url, init, settings);\n if (response.status === 404) {\n const data = await response.json();\n const msg = (_a = data.message) !== null && _a !== void 0 ? _a : `The terminal session \"${name}\"\" does not exist on the server`;\n console.warn(msg);\n }\n else if (response.status !== 204) {\n const err = await serverconnection_1.ServerConnection.ResponseError.create(response);\n throw err;\n }\n}\nexports.shutdownTerminal = shutdownTerminal;\nvar Private;\n(function (Private) {\n /**\n * Throw an error if terminals are not available.\n */\n function errorIfNotAvailable() {\n if (!isAvailable()) {\n throw new Error('Terminals Unavailable');\n }\n }\n Private.errorIfNotAvailable = errorIfNotAvailable;\n})(Private || (Private = {}));\n//# sourceMappingURL=restapi.js.map","\"use strict\";\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.isAvailable = void 0;\nconst restapi_1 = require(\"./restapi\");\nObject.defineProperty(exports, \"isAvailable\", { enumerable: true, get: function () { return restapi_1.isAvailable; } });\n//# sourceMappingURL=terminal.js.map","\"use strict\";\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.UserManager = void 0;\nconst coreutils_1 = require(\"@jupyterlab/coreutils\");\nconst coreutils_2 = require(\"@lumino/coreutils\");\nconst polling_1 = require(\"@lumino/polling\");\nconst signaling_1 = require(\"@lumino/signaling\");\nconst serverconnection_1 = require(\"../serverconnection\");\nconst basemanager_1 = require(\"../basemanager\");\n/**\n * The url for the lab workspaces service.\n */\nconst SERVICE_USER_URL = 'api/me';\n/**\n * The service's ID.\n * Used to uniquely identify the poll, and\n * the item in local storage.\n */\nconst SERVICE_ID = '@jupyterlab/services:UserManager#user';\n/**\n * The user API service manager.\n */\nclass UserManager extends basemanager_1.BaseManager {\n /**\n * Create a new user manager.\n */\n constructor(options = {}) {\n var _a;\n super(options);\n this._isReady = false;\n this._userChanged = new signaling_1.Signal(this);\n this._connectionFailure = new signaling_1.Signal(this);\n // Initialize internal data.\n this._ready = this.requestUser()\n .then(() => {\n if (this.isDisposed) {\n return;\n }\n this._isReady = true;\n })\n .catch(_ => \n // Return a promise that will never resolve, so user service is never ready\n // This typically occurs when the backend has no user service\n new Promise(() => {\n // no-op\n }));\n this._pollSpecs = new polling_1.Poll({\n auto: false,\n factory: () => this.requestUser(),\n frequency: {\n interval: 61 * 1000,\n backoff: true,\n max: 300 * 1000\n },\n name: SERVICE_ID,\n standby: (_a = options.standby) !== null && _a !== void 0 ? _a : 'when-hidden'\n });\n void this.ready.then(() => {\n void this._pollSpecs.start();\n });\n }\n /**\n * Test whether the manager is ready.\n */\n get isReady() {\n return this._isReady;\n }\n /**\n * A promise that fulfills when the manager is ready.\n */\n get ready() {\n return this._ready;\n }\n /**\n * Get the most recently fetched identity.\n */\n get identity() {\n return this._identity;\n }\n /**\n * Get the most recently fetched permissions.\n */\n get permissions() {\n return this._permissions;\n }\n /**\n * A signal emitted when the user changes.\n */\n get userChanged() {\n return this._userChanged;\n }\n /**\n * A signal emitted when there is a connection failure.\n */\n get connectionFailure() {\n return this._connectionFailure;\n }\n /**\n * Dispose of the resources used by the manager.\n */\n dispose() {\n this._pollSpecs.dispose();\n super.dispose();\n }\n /**\n * Force a refresh of the specs from the server.\n *\n * @returns A promise that resolves when the specs are fetched.\n *\n * #### Notes\n * This is intended to be called only in response to a user action,\n * since the manager maintains its internal state.\n */\n async refreshUser() {\n await this._pollSpecs.refresh();\n await this._pollSpecs.tick;\n }\n /**\n * Execute a request to the server to poll the user and update state.\n */\n async requestUser() {\n if (this.isDisposed) {\n return;\n }\n const { baseUrl } = this.serverSettings;\n const { makeRequest, ResponseError } = serverconnection_1.ServerConnection;\n const url = coreutils_1.URLExt.join(baseUrl, SERVICE_USER_URL);\n const response = await makeRequest(url, {}, this.serverSettings);\n if (response.status !== 200) {\n const err = await ResponseError.create(response);\n throw err;\n }\n const oldUser = {\n identity: this._identity,\n permissions: this._permissions\n };\n const newUser = await response.json();\n const identity = newUser.identity;\n // store the color and initials for the user\n // this info is not provided by the server\n const { localStorage } = window;\n const data = localStorage.getItem(SERVICE_ID);\n if (data && (!identity.initials || !identity.color)) {\n const localUser = JSON.parse(data);\n identity.initials =\n identity.initials ||\n localUser.initials ||\n identity.name.substring(0, 1);\n identity.color =\n identity.color || localUser.color || Private.getRandomColor();\n }\n if (!coreutils_2.JSONExt.deepEqual(newUser, oldUser)) {\n this._identity = identity;\n this._permissions = newUser.permissions;\n localStorage.setItem(SERVICE_ID, JSON.stringify(identity));\n this._userChanged.emit(newUser);\n }\n }\n}\nexports.UserManager = UserManager;\n/**\n * A namespace for module-private functionality.\n *\n * Note: We do not want to export this function\n * to move it to css variables in the Theme.\n */\nvar Private;\n(function (Private) {\n /**\n * Predefined colors for users\n */\n const userColors = [\n 'var(--jp-collaborator-color1)',\n 'var(--jp-collaborator-color2)',\n 'var(--jp-collaborator-color3)',\n 'var(--jp-collaborator-color4)',\n 'var(--jp-collaborator-color5)',\n 'var(--jp-collaborator-color6)',\n 'var(--jp-collaborator-color7)'\n ];\n /**\n * Get a random color from the list of colors.\n */\n Private.getRandomColor = () => userColors[Math.floor(Math.random() * userColors.length)];\n})(Private || (Private = {}));\n//# sourceMappingURL=index.js.map","\"use strict\";\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.validateProperty = void 0;\n/**\n * Validate a property as being on an object, and optionally\n * of a given type and among a given set of values.\n */\nfunction validateProperty(\n// eslint-disable-next-line @typescript-eslint/explicit-module-boundary-types\nobject, name, typeName, values = []) {\n if (!object.hasOwnProperty(name)) {\n throw Error(`Missing property '${name}'`);\n }\n const value = object[name];\n if (typeName !== void 0) {\n let valid = true;\n switch (typeName) {\n case 'array':\n valid = Array.isArray(value);\n break;\n case 'object':\n valid = typeof value !== 'undefined';\n break;\n default:\n valid = typeof value === typeName;\n }\n if (!valid) {\n throw new Error(`Property '${name}' is not of type '${typeName}'`);\n }\n if (values.length > 0) {\n let valid = true;\n switch (typeName) {\n case 'string':\n case 'number':\n case 'boolean':\n valid = values.includes(value);\n break;\n default:\n valid = values.findIndex(v => v === value) >= 0;\n break;\n }\n if (!valid) {\n throw new Error(`Property '${name}' is not one of the valid values ${JSON.stringify(values)}`);\n }\n }\n }\n}\nexports.validateProperty = validateProperty;\n//# sourceMappingURL=validate.js.map","\"use strict\";\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.WorkspaceManager = void 0;\nconst coreutils_1 = require(\"@jupyterlab/coreutils\");\nconst statedb_1 = require(\"@jupyterlab/statedb\");\nconst serverconnection_1 = require(\"../serverconnection\");\n/**\n * The url for the lab workspaces service.\n */\nconst SERVICE_WORKSPACES_URL = 'api/workspaces';\n/**\n * The workspaces API service manager.\n */\nclass WorkspaceManager extends statedb_1.DataConnector {\n /**\n * Create a new workspace manager.\n */\n constructor(options = {}) {\n var _a;\n super();\n this.serverSettings =\n (_a = options.serverSettings) !== null && _a !== void 0 ? _a : serverconnection_1.ServerConnection.makeSettings();\n }\n /**\n * Fetch a workspace.\n *\n * @param id - The workspace's ID.\n *\n * @returns A promise that resolves if successful.\n */\n async fetch(id) {\n const { serverSettings } = this;\n const { baseUrl, appUrl } = serverSettings;\n const { makeRequest, ResponseError } = serverconnection_1.ServerConnection;\n const base = baseUrl + appUrl;\n const url = Private.url(base, id);\n const response = await makeRequest(url, {}, serverSettings);\n if (response.status !== 200) {\n const err = await ResponseError.create(response);\n throw err;\n }\n return response.json();\n }\n /**\n * Fetch the list of workspace IDs that exist on the server.\n *\n * @returns A promise that resolves if successful.\n */\n async list() {\n const { serverSettings } = this;\n const { baseUrl, appUrl } = serverSettings;\n const { makeRequest, ResponseError } = serverconnection_1.ServerConnection;\n const base = baseUrl + appUrl;\n const url = Private.url(base, '');\n const response = await makeRequest(url, {}, serverSettings);\n if (response.status !== 200) {\n const err = await ResponseError.create(response);\n throw err;\n }\n const result = await response.json();\n return result.workspaces;\n }\n /**\n * Remove a workspace from the server.\n *\n * @param id - The workspaces's ID.\n *\n * @returns A promise that resolves if successful.\n */\n async remove(id) {\n const { serverSettings } = this;\n const { baseUrl, appUrl } = serverSettings;\n const { makeRequest, ResponseError } = serverconnection_1.ServerConnection;\n const base = baseUrl + appUrl;\n const url = Private.url(base, id);\n const init = { method: 'DELETE' };\n const response = await makeRequest(url, init, serverSettings);\n if (response.status !== 204) {\n const err = await ResponseError.create(response);\n throw err;\n }\n }\n /**\n * Save a workspace.\n *\n * @param id - The workspace's ID.\n *\n * @param workspace - The workspace being saved.\n *\n * @returns A promise that resolves if successful.\n */\n async save(id, workspace) {\n const { serverSettings } = this;\n const { baseUrl, appUrl } = serverSettings;\n const { makeRequest, ResponseError } = serverconnection_1.ServerConnection;\n const base = baseUrl + appUrl;\n const url = Private.url(base, id);\n const init = { body: JSON.stringify(workspace), method: 'PUT' };\n const response = await makeRequest(url, init, serverSettings);\n if (response.status !== 204) {\n const err = await ResponseError.create(response);\n throw err;\n }\n }\n}\nexports.WorkspaceManager = WorkspaceManager;\n/**\n * A namespace for private data.\n */\nvar Private;\n(function (Private) {\n /**\n * Get the url for a workspace.\n */\n function url(base, id) {\n return coreutils_1.URLExt.join(base, SERVICE_WORKSPACES_URL, id);\n }\n Private.url = url;\n})(Private || (Private = {}));\n//# sourceMappingURL=index.js.map","\"use strict\";\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.ActivityMonitor = void 0;\nconst signaling_1 = require(\"@lumino/signaling\");\n/**\n * A class that monitors activity on a signal.\n */\nclass ActivityMonitor {\n /**\n * Construct a new activity monitor.\n */\n constructor(options) {\n this._timer = -1;\n this._timeout = -1;\n this._isDisposed = false;\n this._activityStopped = new signaling_1.Signal(this);\n options.signal.connect(this._onSignalFired, this);\n this._timeout = options.timeout || 1000;\n }\n /**\n * A signal emitted when activity has ceased.\n */\n get activityStopped() {\n return this._activityStopped;\n }\n /**\n * The timeout associated with the monitor, in milliseconds.\n */\n get timeout() {\n return this._timeout;\n }\n set timeout(value) {\n this._timeout = value;\n }\n /**\n * Test whether the monitor has been disposed.\n *\n * #### Notes\n * This is a read-only property.\n */\n get isDisposed() {\n return this._isDisposed;\n }\n /**\n * Dispose of the resources used by the activity monitor.\n */\n dispose() {\n if (this._isDisposed) {\n return;\n }\n this._isDisposed = true;\n signaling_1.Signal.clearData(this);\n }\n /**\n * A signal handler for the monitored signal.\n */\n _onSignalFired(sender, args) {\n clearTimeout(this._timer);\n this._sender = sender;\n this._args = args;\n this._timer = setTimeout(() => {\n this._activityStopped.emit({\n sender: this._sender,\n args: this._args\n });\n }, this._timeout);\n }\n}\nexports.ActivityMonitor = ActivityMonitor;\n//# sourceMappingURL=activitymonitor.js.map","\"use strict\";\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/**\n * @packageDocumentation\n * @module coreutils\n */\nvar __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {\n if (k2 === undefined) k2 = k;\n var desc = Object.getOwnPropertyDescriptor(m, k);\n if (!desc || (\"get\" in desc ? !m.__esModule : desc.writable || desc.configurable)) {\n desc = { enumerable: true, get: function() { return m[k]; } };\n }\n Object.defineProperty(o, k2, desc);\n}) : (function(o, m, k, k2) {\n if (k2 === undefined) k2 = k;\n o[k2] = m[k];\n}));\nvar __exportStar = (this && this.__exportStar) || function(m, exports) {\n for (var p in m) if (p !== \"default\" && !Object.prototype.hasOwnProperty.call(exports, p)) __createBinding(exports, m, p);\n};\nObject.defineProperty(exports, \"__esModule\", { value: true });\n__exportStar(require(\"./activitymonitor\"), exports);\n__exportStar(require(\"./interfaces\"), exports);\n__exportStar(require(\"./markdowncodeblocks\"), exports);\n__exportStar(require(\"./pageconfig\"), exports);\n__exportStar(require(\"./path\"), exports);\n__exportStar(require(\"./signal\"), exports);\n__exportStar(require(\"./text\"), exports);\n__exportStar(require(\"./time\"), exports);\n__exportStar(require(\"./url\"), exports);\n//# sourceMappingURL=index.js.map","\"use strict\";\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\nObject.defineProperty(exports, \"__esModule\", { value: true });\n//# sourceMappingURL=interfaces.js.map","\"use strict\";\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.MarkdownCodeBlocks = void 0;\n/**\n * The namespace for code block functions which help\n * in extract code from markdown text\n */\nvar MarkdownCodeBlocks;\n(function (MarkdownCodeBlocks) {\n MarkdownCodeBlocks.CODE_BLOCK_MARKER = '```';\n const markdownExtensions = [\n '.markdown',\n '.mdown',\n '.mkdn',\n '.md',\n '.mkd',\n '.mdwn',\n '.mdtxt',\n '.mdtext',\n '.text',\n '.txt',\n '.Rmd'\n ];\n class MarkdownCodeBlock {\n constructor(startLine) {\n this.startLine = startLine;\n this.code = '';\n this.endLine = -1;\n }\n }\n MarkdownCodeBlocks.MarkdownCodeBlock = MarkdownCodeBlock;\n /**\n * Check whether the given file extension is a markdown extension\n * @param extension - A file extension\n *\n * @returns true/false depending on whether this is a supported markdown extension\n */\n function isMarkdown(extension) {\n return markdownExtensions.indexOf(extension) > -1;\n }\n MarkdownCodeBlocks.isMarkdown = isMarkdown;\n /**\n * Construct all code snippets from current text\n * (this could be potentially optimized if we can cache and detect differences)\n * @param text - A string to parse codeblocks from\n *\n * @returns An array of MarkdownCodeBlocks.\n */\n function findMarkdownCodeBlocks(text) {\n if (!text || text === '') {\n return [];\n }\n const lines = text.split('\\n');\n const codeBlocks = [];\n let currentBlock = null;\n for (let lineIndex = 0; lineIndex < lines.length; lineIndex++) {\n const line = lines[lineIndex];\n const lineContainsMarker = line.indexOf(MarkdownCodeBlocks.CODE_BLOCK_MARKER) === 0;\n const constructingBlock = currentBlock != null;\n // Skip this line if it is not part of any code block and doesn't contain a marker.\n if (!lineContainsMarker && !constructingBlock) {\n continue;\n }\n // Check if we are already constructing a code block.\n if (!constructingBlock) {\n // Start constructing a new code block.\n currentBlock = new MarkdownCodeBlock(lineIndex);\n // Check whether this is a single line code block of the form ```a = 10```.\n const firstIndex = line.indexOf(MarkdownCodeBlocks.CODE_BLOCK_MARKER);\n const lastIndex = line.lastIndexOf(MarkdownCodeBlocks.CODE_BLOCK_MARKER);\n const isSingleLine = firstIndex !== lastIndex;\n if (isSingleLine) {\n currentBlock.code = line.substring(firstIndex + MarkdownCodeBlocks.CODE_BLOCK_MARKER.length, lastIndex);\n currentBlock.endLine = lineIndex;\n codeBlocks.push(currentBlock);\n currentBlock = null;\n }\n }\n else if (currentBlock) {\n if (lineContainsMarker) {\n // End of block, finish it up.\n currentBlock.endLine = lineIndex - 1;\n codeBlocks.push(currentBlock);\n currentBlock = null;\n }\n else {\n // Append the current line.\n currentBlock.code += line + '\\n';\n }\n }\n }\n return codeBlocks;\n }\n MarkdownCodeBlocks.findMarkdownCodeBlocks = findMarkdownCodeBlocks;\n})(MarkdownCodeBlocks = exports.MarkdownCodeBlocks || (exports.MarkdownCodeBlocks = {}));\n//# sourceMappingURL=markdowncodeblocks.js.map","\"use strict\";\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\nvar __importDefault = (this && this.__importDefault) || function (mod) {\n return (mod && mod.__esModule) ? mod : { \"default\": mod };\n};\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.PageConfig = void 0;\nconst coreutils_1 = require(\"@lumino/coreutils\");\nconst minimist_1 = __importDefault(require(\"minimist\"));\nconst url_1 = require(\"./url\");\n/**\n * The namespace for `PageConfig` functions.\n */\nvar PageConfig;\n(function (PageConfig) {\n /**\n * Get global configuration data for the Jupyter application.\n *\n * @param name - The name of the configuration option.\n *\n * @returns The config value or an empty string if not found.\n *\n * #### Notes\n * All values are treated as strings.\n * For browser based applications, it is assumed that the page HTML\n * includes a script tag with the id `jupyter-config-data` containing the\n * configuration as valid JSON. In order to support the classic Notebook,\n * we fall back on checking for `body` data of the given `name`.\n *\n * For node applications, it is assumed that the process was launched\n * with a `--jupyter-config-data` option pointing to a JSON settings\n * file.\n */\n function getOption(name) {\n if (configData) {\n return configData[name] || getBodyData(name);\n }\n configData = Object.create(null);\n let found = false;\n // Use script tag if available.\n if (typeof document !== 'undefined' && document) {\n const el = document.getElementById('jupyter-config-data');\n if (el) {\n configData = JSON.parse(el.textContent || '');\n found = true;\n }\n }\n // Otherwise use CLI if given.\n if (!found && typeof process !== 'undefined' && process.argv) {\n try {\n const cli = (0, minimist_1.default)(process.argv.slice(2));\n const path = require('path');\n let fullPath = '';\n if ('jupyter-config-data' in cli) {\n fullPath = path.resolve(cli['jupyter-config-data']);\n }\n else if ('JUPYTER_CONFIG_DATA' in process.env) {\n fullPath = path.resolve(process.env['JUPYTER_CONFIG_DATA']);\n }\n if (fullPath) {\n // Force Webpack to ignore this require.\n // eslint-disable-next-line\n configData = eval('require')(fullPath);\n }\n }\n catch (e) {\n console.error(e);\n }\n }\n if (!coreutils_1.JSONExt.isObject(configData)) {\n configData = Object.create(null);\n }\n else {\n for (const key in configData) {\n // PageConfig expects strings\n if (typeof configData[key] !== 'string') {\n configData[key] = JSON.stringify(configData[key]);\n }\n }\n }\n return configData[name] || getBodyData(name);\n }\n PageConfig.getOption = getOption;\n /**\n * Set global configuration data for the Jupyter application.\n *\n * @param name - The name of the configuration option.\n * @param value - The value to set the option to.\n *\n * @returns The last config value or an empty string if it doesn't exist.\n */\n function setOption(name, value) {\n const last = getOption(name);\n configData[name] = value;\n return last;\n }\n PageConfig.setOption = setOption;\n /**\n * Get the base url for a Jupyter application, or the base url of the page.\n */\n function getBaseUrl() {\n return url_1.URLExt.normalize(getOption('baseUrl') || '/');\n }\n PageConfig.getBaseUrl = getBaseUrl;\n /**\n * Get the tree url for a JupyterLab application.\n */\n function getTreeUrl() {\n return url_1.URLExt.join(getBaseUrl(), getOption('treeUrl'));\n }\n PageConfig.getTreeUrl = getTreeUrl;\n /**\n * Get the base url for sharing links (usually baseUrl)\n */\n function getShareUrl() {\n return url_1.URLExt.normalize(getOption('shareUrl') || getBaseUrl());\n }\n PageConfig.getShareUrl = getShareUrl;\n /**\n * Get the tree url for shareable links.\n * Usually the same as treeUrl,\n * but overrideable e.g. when sharing with JupyterHub.\n */\n function getTreeShareUrl() {\n return url_1.URLExt.normalize(url_1.URLExt.join(getShareUrl(), getOption('treeUrl')));\n }\n PageConfig.getTreeShareUrl = getTreeShareUrl;\n /**\n * Create a new URL given an optional mode and tree path.\n *\n * This is used to create URLS when the mode or tree path change as the user\n * changes mode or the current document in the main area. If fields in\n * options are omitted, the value in PageConfig will be used.\n *\n * @param options - IGetUrlOptions for the new path.\n */\n function getUrl(options) {\n var _a, _b, _c, _d;\n let path = options.toShare ? getShareUrl() : getBaseUrl();\n const mode = (_a = options.mode) !== null && _a !== void 0 ? _a : getOption('mode');\n const workspace = (_b = options.workspace) !== null && _b !== void 0 ? _b : getOption('workspace');\n const labOrDoc = mode === 'single-document' ? 'doc' : 'lab';\n path = url_1.URLExt.join(path, labOrDoc);\n if (workspace !== PageConfig.defaultWorkspace) {\n path = url_1.URLExt.join(path, 'workspaces', encodeURIComponent((_c = getOption('workspace')) !== null && _c !== void 0 ? _c : PageConfig.defaultWorkspace));\n }\n const treePath = (_d = options.treePath) !== null && _d !== void 0 ? _d : getOption('treePath');\n if (treePath) {\n path = url_1.URLExt.join(path, 'tree', url_1.URLExt.encodeParts(treePath));\n }\n return path;\n }\n PageConfig.getUrl = getUrl;\n PageConfig.defaultWorkspace = 'default';\n /**\n * Get the base websocket url for a Jupyter application, or an empty string.\n */\n function getWsUrl(baseUrl) {\n let wsUrl = getOption('wsUrl');\n if (!wsUrl) {\n baseUrl = baseUrl ? url_1.URLExt.normalize(baseUrl) : getBaseUrl();\n if (baseUrl.indexOf('http') !== 0) {\n return '';\n }\n wsUrl = 'ws' + baseUrl.slice(4);\n }\n return url_1.URLExt.normalize(wsUrl);\n }\n PageConfig.getWsUrl = getWsUrl;\n /**\n * Returns the URL converting this notebook to a certain\n * format with nbconvert.\n */\n function getNBConvertURL({ path, format, download }) {\n const notebookPath = url_1.URLExt.encodeParts(path);\n const url = url_1.URLExt.join(getBaseUrl(), 'nbconvert', format, notebookPath);\n if (download) {\n return url + '?download=true';\n }\n return url;\n }\n PageConfig.getNBConvertURL = getNBConvertURL;\n /**\n * Get the authorization token for a Jupyter application.\n */\n function getToken() {\n return getOption('token') || getBodyData('jupyterApiToken');\n }\n PageConfig.getToken = getToken;\n /**\n * Get the Notebook version info [major, minor, patch].\n */\n function getNotebookVersion() {\n const notebookVersion = getOption('notebookVersion');\n if (notebookVersion === '') {\n return [0, 0, 0];\n }\n return JSON.parse(notebookVersion);\n }\n PageConfig.getNotebookVersion = getNotebookVersion;\n /**\n * Private page config data for the Jupyter application.\n */\n let configData = null;\n /**\n * Get a url-encoded item from `body.data` and decode it\n * We should never have any encoded URLs anywhere else in code\n * until we are building an actual request.\n */\n function getBodyData(key) {\n if (typeof document === 'undefined' || !document.body) {\n return '';\n }\n const val = document.body.dataset[key];\n if (typeof val === 'undefined') {\n return '';\n }\n return decodeURIComponent(val);\n }\n /**\n * The namespace for page config `Extension` functions.\n */\n let Extension;\n (function (Extension) {\n /**\n * Populate an array from page config.\n *\n * @param key - The page config key (e.g., `deferredExtensions`).\n *\n * #### Notes\n * This is intended for `deferredExtensions` and `disabledExtensions`.\n */\n function populate(key) {\n try {\n const raw = getOption(key);\n if (raw) {\n return JSON.parse(raw);\n }\n }\n catch (error) {\n console.warn(`Unable to parse ${key}.`, error);\n }\n return [];\n }\n /**\n * The collection of deferred extensions in page config.\n */\n Extension.deferred = populate('deferredExtensions');\n /**\n * The collection of disabled extensions in page config.\n */\n Extension.disabled = populate('disabledExtensions');\n /**\n * Returns whether a plugin is deferred.\n *\n * @param id - The plugin ID.\n */\n function isDeferred(id) {\n // Check for either a full plugin id match or an extension\n // name match.\n const separatorIndex = id.indexOf(':');\n let extName = '';\n if (separatorIndex !== -1) {\n extName = id.slice(0, separatorIndex);\n }\n return Extension.deferred.some(val => val === id || (extName && val === extName));\n }\n Extension.isDeferred = isDeferred;\n /**\n * Returns whether a plugin is disabled.\n *\n * @param id - The plugin ID.\n */\n function isDisabled(id) {\n // Check for either a full plugin id match or an extension\n // name match.\n const separatorIndex = id.indexOf(':');\n let extName = '';\n if (separatorIndex !== -1) {\n extName = id.slice(0, separatorIndex);\n }\n return Extension.disabled.some(val => val === id || (extName && val === extName));\n }\n Extension.isDisabled = isDisabled;\n })(Extension = PageConfig.Extension || (PageConfig.Extension = {}));\n})(PageConfig = exports.PageConfig || (exports.PageConfig = {}));\n//# sourceMappingURL=pageconfig.js.map","\"use strict\";\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.PathExt = void 0;\nconst path_1 = require(\"path\");\n/**\n * The namespace for path-related functions.\n *\n * Note that Jupyter server paths do not start with a leading slash.\n */\nvar PathExt;\n(function (PathExt) {\n /**\n * Join all arguments together and normalize the resulting path.\n * Arguments must be strings. In v0.8, non-string arguments were silently ignored. In v0.10 and up, an exception is thrown.\n *\n * @param paths - The string paths to join.\n */\n function join(...paths) {\n const path = path_1.posix.join(...paths);\n return path === '.' ? '' : removeSlash(path);\n }\n PathExt.join = join;\n /**\n * Return the last portion of a path. Similar to the Unix basename command.\n * Often used to extract the file name from a fully qualified path.\n *\n * @param path - The path to evaluate.\n *\n * @param ext - An extension to remove from the result.\n */\n function basename(path, ext) {\n return path_1.posix.basename(path, ext);\n }\n PathExt.basename = basename;\n /**\n * Get the directory name of a path, similar to the Unix dirname command.\n * When an empty path is given, returns the root path.\n *\n * @param path - The file path.\n */\n function dirname(path) {\n const dir = removeSlash(path_1.posix.dirname(path));\n return dir === '.' ? '' : dir;\n }\n PathExt.dirname = dirname;\n /**\n * Get the extension of the path.\n *\n * @param path - The file path.\n *\n * @returns the extension of the file.\n *\n * #### Notes\n * The extension is the string from the last occurrence of the `.`\n * character to end of string in the last portion of the path, inclusive.\n * If there is no `.` in the last portion of the path, or if the first\n * character of the basename of path [[basename]] is `.`, then an\n * empty string is returned.\n */\n function extname(path) {\n return path_1.posix.extname(path);\n }\n PathExt.extname = extname;\n /**\n * Normalize a string path, reducing '..' and '.' parts.\n * When multiple slashes are found, they're replaced by a single one; when the path contains a trailing slash, it is preserved. On Windows backslashes are used.\n * When an empty path is given, returns the root path.\n *\n * @param path - The string path to normalize.\n */\n function normalize(path) {\n if (path === '') {\n return '';\n }\n return removeSlash(path_1.posix.normalize(path));\n }\n PathExt.normalize = normalize;\n /**\n * Resolve a sequence of paths or path segments into an absolute path.\n * The root path in the application has no leading slash, so it is removed.\n *\n * @param parts - The paths to join.\n *\n * #### Notes\n * The right-most parameter is considered \\{to\\}. Other parameters are considered an array of \\{from\\}.\n *\n * Starting from leftmost \\{from\\} parameter, resolves \\{to\\} to an absolute path.\n *\n * If \\{to\\} isn't already absolute, \\{from\\} arguments are prepended in right to left order, until an absolute path is found. If after using all \\{from\\} paths still no absolute path is found, the current working directory is used as well. The resulting path is normalized, and trailing slashes are removed unless the path gets resolved to the root directory.\n */\n function resolve(...parts) {\n return removeSlash(path_1.posix.resolve(...parts));\n }\n PathExt.resolve = resolve;\n /**\n * Solve the relative path from \\{from\\} to \\{to\\}.\n *\n * @param from - The source path.\n *\n * @param to - The target path.\n *\n * #### Notes\n * If from and to each resolve to the same path (after calling\n * path.resolve() on each), a zero-length string is returned.\n * If a zero-length string is passed as from or to, `/`\n * will be used instead of the zero-length strings.\n */\n function relative(from, to) {\n return removeSlash(path_1.posix.relative(from, to));\n }\n PathExt.relative = relative;\n /**\n * Normalize a file extension to be of the type `'.foo'`.\n *\n * @param extension - the file extension.\n *\n * #### Notes\n * Adds a leading dot if not present and converts to lower case.\n */\n function normalizeExtension(extension) {\n if (extension.length > 0 && extension.indexOf('.') !== 0) {\n extension = `.${extension}`;\n }\n return extension;\n }\n PathExt.normalizeExtension = normalizeExtension;\n /**\n * Remove the leading slash from a path.\n *\n * @param path: the path from which to remove a leading slash.\n */\n function removeSlash(path) {\n if (path.indexOf('/') === 0) {\n path = path.slice(1);\n }\n return path;\n }\n PathExt.removeSlash = removeSlash;\n})(PathExt = exports.PathExt || (exports.PathExt = {}));\n//# sourceMappingURL=path.js.map","\"use strict\";\n/*\n * Copyright (c) Jupyter Development Team.\n * Distributed under the terms of the Modified BSD License.\n */\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.signalToPromise = void 0;\nconst coreutils_1 = require(\"@lumino/coreutils\");\n/**\n * Convert a signal into a promise for the first emitted value.\n *\n * @param signal - The signal we are listening to.\n * @param timeout - Timeout to wait for signal in ms (not timeout if not defined or 0)\n *\n * @returns a Promise that resolves with a `(sender, args)` pair.\n */\nfunction signalToPromise(signal, timeout) {\n const waitForSignal = new coreutils_1.PromiseDelegate();\n function cleanup() {\n signal.disconnect(slot);\n }\n function slot(sender, args) {\n cleanup();\n waitForSignal.resolve([sender, args]);\n }\n signal.connect(slot);\n if ((timeout !== null && timeout !== void 0 ? timeout : 0) > 0) {\n setTimeout(() => {\n cleanup();\n waitForSignal.reject(`Signal not emitted within ${timeout} ms.`);\n }, timeout);\n }\n return waitForSignal.promise;\n}\nexports.signalToPromise = signalToPromise;\n//# sourceMappingURL=signal.js.map","\"use strict\";\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.Text = void 0;\n/**\n * The namespace for text-related functions.\n */\nvar Text;\n(function (Text) {\n // javascript stores text as utf16 and string indices use \"code units\",\n // which stores high-codepoint characters as \"surrogate pairs\",\n // which occupy two indices in the javascript string.\n // We need to translate cursor_pos in the Jupyter protocol (in characters)\n // to js offset (with surrogate pairs taking two spots).\n const HAS_SURROGATES = '𝐚'.length > 1;\n /**\n * Convert a javascript string index into a unicode character offset\n *\n * @param jsIdx - The javascript string index (counting surrogate pairs)\n *\n * @param text - The text in which the offset is calculated\n *\n * @returns The unicode character offset\n */\n function jsIndexToCharIndex(jsIdx, text) {\n if (HAS_SURROGATES) {\n // not using surrogates, nothing to do\n return jsIdx;\n }\n let charIdx = jsIdx;\n for (let i = 0; i + 1 < text.length && i < jsIdx; i++) {\n const charCode = text.charCodeAt(i);\n // check for surrogate pair\n if (charCode >= 0xd800 && charCode <= 0xdbff) {\n const nextCharCode = text.charCodeAt(i + 1);\n if (nextCharCode >= 0xdc00 && nextCharCode <= 0xdfff) {\n charIdx--;\n i++;\n }\n }\n }\n return charIdx;\n }\n Text.jsIndexToCharIndex = jsIndexToCharIndex;\n /**\n * Convert a unicode character offset to a javascript string index.\n *\n * @param charIdx - The index in unicode characters\n *\n * @param text - The text in which the offset is calculated\n *\n * @returns The js-native index\n */\n function charIndexToJsIndex(charIdx, text) {\n if (HAS_SURROGATES) {\n // not using surrogates, nothing to do\n return charIdx;\n }\n let jsIdx = charIdx;\n for (let i = 0; i + 1 < text.length && i < jsIdx; i++) {\n const charCode = text.charCodeAt(i);\n // check for surrogate pair\n if (charCode >= 0xd800 && charCode <= 0xdbff) {\n const nextCharCode = text.charCodeAt(i + 1);\n if (nextCharCode >= 0xdc00 && nextCharCode <= 0xdfff) {\n jsIdx++;\n i++;\n }\n }\n }\n return jsIdx;\n }\n Text.charIndexToJsIndex = charIndexToJsIndex;\n /**\n * Given a 'snake-case', 'snake_case', 'snake:case', or\n * 'snake case' string, will return the camel case version: 'snakeCase'.\n *\n * @param str: the snake-case input string.\n *\n * @param upper: default = false. If true, the first letter of the\n * returned string will be capitalized.\n *\n * @returns the camel case version of the input string.\n */\n function camelCase(str, upper = false) {\n return str.replace(/^(\\w)|[\\s-_:]+(\\w)/g, function (match, p1, p2) {\n if (p2) {\n return p2.toUpperCase();\n }\n else {\n return upper ? p1.toUpperCase() : p1.toLowerCase();\n }\n });\n }\n Text.camelCase = camelCase;\n /**\n * Given a string, title case the words in the string.\n *\n * @param str: the string to title case.\n *\n * @returns the same string, but with each word capitalized.\n */\n function titleCase(str) {\n return (str || '')\n .toLowerCase()\n .split(' ')\n .map(word => word.charAt(0).toUpperCase() + word.slice(1))\n .join(' ');\n }\n Text.titleCase = titleCase;\n})(Text = exports.Text || (exports.Text = {}));\n//# sourceMappingURL=text.js.map","\"use strict\";\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.Time = void 0;\n/**\n * A list of time units with their associated value in milliseconds.\n */\nconst UNITS = [\n { name: 'years', milliseconds: 365 * 24 * 60 * 60 * 1000 },\n { name: 'months', milliseconds: 30 * 24 * 60 * 60 * 1000 },\n { name: 'days', milliseconds: 24 * 60 * 60 * 1000 },\n { name: 'hours', milliseconds: 60 * 60 * 1000 },\n { name: 'minutes', milliseconds: 60 * 1000 },\n { name: 'seconds', milliseconds: 1000 }\n];\n/**\n * The namespace for date functions.\n */\nvar Time;\n(function (Time) {\n /**\n * Convert a timestring to a human readable string (e.g. 'two minutes ago').\n *\n * @param value - The date timestring or date object.\n *\n * @returns A formatted date.\n */\n function formatHuman(value) {\n const lang = document.documentElement.lang || 'en';\n const formatter = new Intl.RelativeTimeFormat(lang, { numeric: 'auto' });\n const delta = new Date(value).getTime() - Date.now();\n for (let unit of UNITS) {\n const amount = Math.ceil(delta / unit.milliseconds);\n if (amount === 0) {\n continue;\n }\n return formatter.format(amount, unit.name);\n }\n return formatter.format(0, 'seconds');\n }\n Time.formatHuman = formatHuman;\n /**\n * Convenient helper to convert a timestring to a date format.\n *\n * @param value - The date timestring or date object.\n *\n * @returns A formatted date.\n */\n function format(value) {\n const lang = document.documentElement.lang || 'en';\n const formatter = new Intl.DateTimeFormat(lang, {\n dateStyle: 'short',\n timeStyle: 'short'\n });\n return formatter.format(new Date(value));\n }\n Time.format = format;\n})(Time = exports.Time || (exports.Time = {}));\n//# sourceMappingURL=time.js.map","\"use strict\";\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\nvar __importDefault = (this && this.__importDefault) || function (mod) {\n return (mod && mod.__esModule) ? mod : { \"default\": mod };\n};\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.URLExt = void 0;\nconst path_1 = require(\"path\");\nconst url_parse_1 = __importDefault(require(\"url-parse\"));\n/**\n * The namespace for URL-related functions.\n */\nvar URLExt;\n(function (URLExt) {\n /**\n * Parse a url into a URL object.\n *\n * @param urlString - The URL string to parse.\n *\n * @returns A URL object.\n */\n function parse(url) {\n if (typeof document !== 'undefined' && document) {\n const a = document.createElement('a');\n a.href = url;\n return a;\n }\n return (0, url_parse_1.default)(url);\n }\n URLExt.parse = parse;\n /**\n * Parse URL and retrieve hostname\n *\n * @param url - The URL string to parse\n *\n * @returns a hostname string value\n */\n function getHostName(url) {\n return (0, url_parse_1.default)(url).hostname;\n }\n URLExt.getHostName = getHostName;\n function normalize(url) {\n return url && parse(url).toString();\n }\n URLExt.normalize = normalize;\n /**\n * Join a sequence of url components and normalizes as in node `path.join`.\n *\n * @param parts - The url components.\n *\n * @returns the joined url.\n */\n function join(...parts) {\n let u = (0, url_parse_1.default)(parts[0], {});\n // Schema-less URL can be only parsed as relative to a base URL\n // see https://github.com/unshiftio/url-parse/issues/219#issuecomment-1002219326\n const isSchemaLess = u.protocol === '' && u.slashes;\n if (isSchemaLess) {\n u = (0, url_parse_1.default)(parts[0], 'https:' + parts[0]);\n }\n const prefix = `${isSchemaLess ? '' : u.protocol}${u.slashes ? '//' : ''}${u.auth}${u.auth ? '@' : ''}${u.host}`;\n // If there was a prefix, then the first path must start at the root.\n const path = path_1.posix.join(`${!!prefix && u.pathname[0] !== '/' ? '/' : ''}${u.pathname}`, ...parts.slice(1));\n return `${prefix}${path === '.' ? '' : path}`;\n }\n URLExt.join = join;\n /**\n * Encode the components of a multi-segment url.\n *\n * @param url - The url to encode.\n *\n * @returns the encoded url.\n *\n * #### Notes\n * Preserves the `'/'` separators.\n * Should not include the base url, since all parts are escaped.\n */\n function encodeParts(url) {\n return join(...url.split('/').map(encodeURIComponent));\n }\n URLExt.encodeParts = encodeParts;\n /**\n * Return a serialized object string suitable for a query.\n *\n * @param object - The source object.\n *\n * @returns an encoded url query.\n *\n * #### Notes\n * Modified version of [stackoverflow](http://stackoverflow.com/a/30707423).\n */\n function objectToQueryString(value) {\n const keys = Object.keys(value).filter(key => key.length > 0);\n if (!keys.length) {\n return '';\n }\n return ('?' +\n keys\n .map(key => {\n const content = encodeURIComponent(String(value[key]));\n return key + (content ? '=' + content : '');\n })\n .join('&'));\n }\n URLExt.objectToQueryString = objectToQueryString;\n /**\n * Return a parsed object that represents the values in a query string.\n */\n function queryStringToObject(value) {\n return value\n .replace(/^\\?/, '')\n .split('&')\n .reduce((acc, val) => {\n const [key, value] = val.split('=');\n if (key.length > 0) {\n acc[key] = decodeURIComponent(value || '');\n }\n return acc;\n }, {});\n }\n URLExt.queryStringToObject = queryStringToObject;\n /**\n * Test whether the url is a local url.\n *\n * #### Notes\n * This function returns `false` for any fully qualified url, including\n * `data:`, `file:`, and `//` protocol URLs.\n */\n function isLocal(url) {\n const { protocol } = parse(url);\n return ((!protocol || url.toLowerCase().indexOf(protocol) !== 0) &&\n url.indexOf('/') !== 0);\n }\n URLExt.isLocal = isLocal;\n})(URLExt = exports.URLExt || (exports.URLExt = {}));\n//# sourceMappingURL=url.js.map","\"use strict\";\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.DataConnector = void 0;\n/**\n * An abstract class that adheres to the data connector interface.\n *\n * @typeparam T - The basic entity response type a service's connector.\n *\n * @typeparam U - The basic entity request type, which is conventionally the\n * same as the response type but may be different if a service's implementation\n * requires input data to be different from output responses. Defaults to `T`.\n *\n * @typeparam V - The basic token applied to a request, conventionally a string\n * ID or filter, but may be set to a different type when an implementation\n * requires it. Defaults to `string`.\n *\n * @typeparam W - The type of the optional `query` parameter of the `list`\n * method. Defaults to `string`.\n *\n * #### Notes\n * The only abstract method in this class is the `fetch` method, which must be\n * reimplemented by all subclasses. The `remove` and `save` methods have a\n * default implementation that returns a promise that will always reject. This\n * class is a convenience superclass for connectors that only need to `fetch`.\n */\nclass DataConnector {\n /**\n * Retrieve the list of items available from the data connector.\n *\n * @param query - The optional query filter to apply to the connector request.\n *\n * @returns A promise that always rejects with an error.\n *\n * #### Notes\n * Subclasses should reimplement if they support a back-end that can list.\n */\n async list(query) {\n throw new Error('DataConnector#list method has not been implemented.');\n }\n /**\n * Remove a value using the data connector.\n *\n * @param id - The identifier for the data being removed.\n *\n * @returns A promise that always rejects with an error.\n *\n * #### Notes\n * Subclasses should reimplement if they support a back-end that can remove.\n */\n async remove(id) {\n throw new Error('DataConnector#remove method has not been implemented.');\n }\n /**\n * Save a value using the data connector.\n *\n * @param id - The identifier for the data being saved.\n *\n * @param value - The data being saved.\n *\n * @returns A promise that always rejects with an error.\n *\n * #### Notes\n * Subclasses should reimplement if they support a back-end that can save.\n */\n async save(id, value) {\n throw new Error('DataConnector#save method has not been implemented.');\n }\n}\nexports.DataConnector = DataConnector;\n//# sourceMappingURL=dataconnector.js.map","\"use strict\";\n/* -----------------------------------------------------------------------------\n| Copyright (c) Jupyter Development Team.\n| Distributed under the terms of the Modified BSD License.\n|----------------------------------------------------------------------------*/\n/**\n * @packageDocumentation\n * @module statedb\n */\nvar __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {\n if (k2 === undefined) k2 = k;\n var desc = Object.getOwnPropertyDescriptor(m, k);\n if (!desc || (\"get\" in desc ? !m.__esModule : desc.writable || desc.configurable)) {\n desc = { enumerable: true, get: function() { return m[k]; } };\n }\n Object.defineProperty(o, k2, desc);\n}) : (function(o, m, k, k2) {\n if (k2 === undefined) k2 = k;\n o[k2] = m[k];\n}));\nvar __exportStar = (this && this.__exportStar) || function(m, exports) {\n for (var p in m) if (p !== \"default\" && !Object.prototype.hasOwnProperty.call(exports, p)) __createBinding(exports, m, p);\n};\nObject.defineProperty(exports, \"__esModule\", { value: true });\n__exportStar(require(\"./dataconnector\"), exports);\n__exportStar(require(\"./interfaces\"), exports);\n__exportStar(require(\"./restorablepool\"), exports);\n__exportStar(require(\"./statedb\"), exports);\n__exportStar(require(\"./tokens\"), exports);\n//# sourceMappingURL=index.js.map","\"use strict\";\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\nObject.defineProperty(exports, \"__esModule\", { value: true });\n//# sourceMappingURL=interfaces.js.map","\"use strict\";\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.RestorablePool = void 0;\nconst coreutils_1 = require(\"@lumino/coreutils\");\nconst properties_1 = require(\"@lumino/properties\");\nconst signaling_1 = require(\"@lumino/signaling\");\n/**\n * An object pool that supports restoration.\n *\n * @typeparam T - The type of object being tracked.\n */\nclass RestorablePool {\n /**\n * Create a new restorable pool.\n *\n * @param options - The instantiation options for a restorable pool.\n */\n constructor(options) {\n this._added = new signaling_1.Signal(this);\n this._current = null;\n this._currentChanged = new signaling_1.Signal(this);\n this._hasRestored = false;\n this._isDisposed = false;\n this._objects = new Set();\n this._restore = null;\n this._restored = new coreutils_1.PromiseDelegate();\n this._updated = new signaling_1.Signal(this);\n this.namespace = options.namespace;\n }\n /**\n * A signal emitted when an object object is added.\n *\n * #### Notes\n * This signal will only fire when an object is added to the pool.\n * It will not fire if an object injected into the pool.\n */\n get added() {\n return this._added;\n }\n /**\n * The current object.\n *\n * #### Notes\n * The restorable pool does not set `current`. It is intended for client use.\n *\n * If `current` is set to an object that does not exist in the pool, it is a\n * no-op.\n */\n get current() {\n return this._current;\n }\n set current(obj) {\n if (this._current === obj) {\n return;\n }\n if (obj !== null && this._objects.has(obj)) {\n this._current = obj;\n this._currentChanged.emit(this._current);\n }\n }\n /**\n * A signal emitted when the current widget changes.\n */\n get currentChanged() {\n return this._currentChanged;\n }\n /**\n * Test whether the pool is disposed.\n */\n get isDisposed() {\n return this._isDisposed;\n }\n /**\n * A promise resolved when the restorable pool has been restored.\n */\n get restored() {\n return this._restored.promise;\n }\n /**\n * The number of objects held by the pool.\n */\n get size() {\n return this._objects.size;\n }\n /**\n * A signal emitted when an object is updated.\n */\n get updated() {\n return this._updated;\n }\n /**\n * Add a new object to the pool.\n *\n * @param obj - The object object being added.\n *\n * #### Notes\n * The object passed into the pool is added synchronously; its existence in\n * the pool can be checked with the `has()` method. The promise this method\n * returns resolves after the object has been added and saved to an underlying\n * restoration connector, if one is available.\n */\n async add(obj) {\n var _a, _b;\n if (obj.isDisposed) {\n const warning = 'A disposed object cannot be added.';\n console.warn(warning, obj);\n throw new Error(warning);\n }\n if (this._objects.has(obj)) {\n const warning = 'This object already exists in the pool.';\n console.warn(warning, obj);\n throw new Error(warning);\n }\n this._objects.add(obj);\n obj.disposed.connect(this._onInstanceDisposed, this);\n if (Private.injectedProperty.get(obj)) {\n return;\n }\n if (this._restore) {\n const { connector } = this._restore;\n const objName = this._restore.name(obj);\n if (objName) {\n const name = `${this.namespace}:${objName}`;\n const data = (_b = (_a = this._restore).args) === null || _b === void 0 ? void 0 : _b.call(_a, obj);\n Private.nameProperty.set(obj, name);\n await connector.save(name, { data });\n }\n }\n // Emit the added signal.\n this._added.emit(obj);\n }\n /**\n * Dispose of the resources held by the pool.\n *\n * #### Notes\n * Disposing a pool does not affect the underlying data in the data connector,\n * it simply disposes the client-side pool without making any connector calls.\n */\n dispose() {\n if (this.isDisposed) {\n return;\n }\n this._current = null;\n this._isDisposed = true;\n this._objects.clear();\n signaling_1.Signal.clearData(this);\n }\n /**\n * Find the first object in the pool that satisfies a filter function.\n *\n * @param - fn The filter function to call on each object.\n */\n find(fn) {\n const values = this._objects.values();\n for (const value of values) {\n if (fn(value)) {\n return value;\n }\n }\n return undefined;\n }\n /**\n * Iterate through each object in the pool.\n *\n * @param fn - The function to call on each object.\n */\n forEach(fn) {\n this._objects.forEach(fn);\n }\n /**\n * Filter the objects in the pool based on a predicate.\n *\n * @param fn - The function by which to filter.\n */\n filter(fn) {\n const filtered = [];\n this.forEach(obj => {\n if (fn(obj)) {\n filtered.push(obj);\n }\n });\n return filtered;\n }\n /**\n * Inject an object into the restorable pool without the pool handling its\n * restoration lifecycle.\n *\n * @param obj - The object to inject into the pool.\n */\n inject(obj) {\n Private.injectedProperty.set(obj, true);\n return this.add(obj);\n }\n /**\n * Check if this pool has the specified object.\n *\n * @param obj - The object whose existence is being checked.\n */\n has(obj) {\n return this._objects.has(obj);\n }\n /**\n * Restore the objects in this pool's namespace.\n *\n * @param options - The configuration options that describe restoration.\n *\n * @returns A promise that resolves when restoration has completed.\n *\n * #### Notes\n * This function should almost never be invoked by client code. Its primary\n * use case is to be invoked by a layout restorer plugin that handles\n * multiple restorable pools and, when ready, asks them each to restore their\n * respective objects.\n */\n async restore(options) {\n if (this._hasRestored) {\n throw new Error('This pool has already been restored.');\n }\n this._hasRestored = true;\n const { command, connector, registry, when } = options;\n const namespace = this.namespace;\n const promises = when\n ? [connector.list(namespace)].concat(when)\n : [connector.list(namespace)];\n this._restore = options;\n const [saved] = await Promise.all(promises);\n const values = await Promise.all(saved.ids.map(async (id, index) => {\n const value = saved.values[index];\n const args = value && value.data;\n if (args === undefined) {\n return connector.remove(id);\n }\n // Execute the command and if it fails, delete the state restore data.\n return registry\n .execute(command, args)\n .catch(() => connector.remove(id));\n }));\n this._restored.resolve();\n return values;\n }\n /**\n * Save the restore data for a given object.\n *\n * @param obj - The object being saved.\n */\n async save(obj) {\n var _a, _b;\n const injected = Private.injectedProperty.get(obj);\n if (!this._restore || !this.has(obj) || injected) {\n return;\n }\n const { connector } = this._restore;\n const objName = this._restore.name(obj);\n const oldName = Private.nameProperty.get(obj);\n const newName = objName ? `${this.namespace}:${objName}` : '';\n if (oldName && oldName !== newName) {\n await connector.remove(oldName);\n }\n // Set the name property irrespective of whether the new name is null.\n Private.nameProperty.set(obj, newName);\n if (newName) {\n const data = (_b = (_a = this._restore).args) === null || _b === void 0 ? void 0 : _b.call(_a, obj);\n await connector.save(newName, { data });\n }\n if (oldName !== newName) {\n this._updated.emit(obj);\n }\n }\n /**\n * Clean up after disposed objects.\n */\n _onInstanceDisposed(obj) {\n this._objects.delete(obj);\n if (obj === this._current) {\n this._current = null;\n this._currentChanged.emit(this._current);\n }\n if (Private.injectedProperty.get(obj)) {\n return;\n }\n if (!this._restore) {\n return;\n }\n const { connector } = this._restore;\n const name = Private.nameProperty.get(obj);\n if (name) {\n void connector.remove(name);\n }\n }\n}\nexports.RestorablePool = RestorablePool;\n/*\n * A namespace for private data.\n */\nvar Private;\n(function (Private) {\n /**\n * An attached property to indicate whether an object has been injected.\n */\n Private.injectedProperty = new properties_1.AttachedProperty({\n name: 'injected',\n create: () => false\n });\n /**\n * An attached property for an object's ID.\n */\n Private.nameProperty = new properties_1.AttachedProperty({\n name: 'name',\n create: () => ''\n });\n})(Private || (Private = {}));\n//# sourceMappingURL=restorablepool.js.map","\"use strict\";\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.StateDB = void 0;\nconst signaling_1 = require(\"@lumino/signaling\");\n/**\n * The default concrete implementation of a state database.\n */\nclass StateDB {\n /**\n * Create a new state database.\n *\n * @param options - The instantiation options for a state database.\n */\n constructor(options = {}) {\n this._changed = new signaling_1.Signal(this);\n const { connector, transform } = options;\n this._connector = connector || new StateDB.Connector();\n if (!transform) {\n this._ready = Promise.resolve(undefined);\n }\n else {\n this._ready = transform.then(transformation => {\n const { contents, type } = transformation;\n switch (type) {\n case 'cancel':\n return;\n case 'clear':\n return this._clear();\n case 'merge':\n return this._merge(contents || {});\n case 'overwrite':\n return this._overwrite(contents || {});\n default:\n return;\n }\n });\n }\n }\n /**\n * A signal that emits the change type any time a value changes.\n */\n get changed() {\n return this._changed;\n }\n /**\n * Clear the entire database.\n */\n async clear() {\n await this._ready;\n await this._clear();\n }\n /**\n * Retrieve a saved bundle from the database.\n *\n * @param id - The identifier used to retrieve a data bundle.\n *\n * @returns A promise that bears a data payload if available.\n *\n * #### Notes\n * The `id` values of stored items in the state database are formatted:\n * `'namespace:identifier'`, which is the same convention that command\n * identifiers in JupyterLab use as well. While this is not a technical\n * requirement for `fetch()`, `remove()`, and `save()`, it *is* necessary for\n * using the `list(namespace: string)` method.\n *\n * The promise returned by this method may be rejected if an error occurs in\n * retrieving the data. Non-existence of an `id` will succeed with the `value`\n * `undefined`.\n */\n async fetch(id) {\n await this._ready;\n return this._fetch(id);\n }\n /**\n * Retrieve all the saved bundles for a namespace.\n *\n * @param filter - The namespace prefix to retrieve.\n *\n * @returns A promise that bears a collection of payloads for a namespace.\n *\n * #### Notes\n * Namespaces are entirely conventional entities. The `id` values of stored\n * items in the state database are formatted: `'namespace:identifier'`, which\n * is the same convention that command identifiers in JupyterLab use as well.\n *\n * If there are any errors in retrieving the data, they will be logged to the\n * console in order to optimistically return any extant data without failing.\n * This promise will always succeed.\n */\n async list(namespace) {\n await this._ready;\n return this._list(namespace);\n }\n /**\n * Remove a value from the database.\n *\n * @param id - The identifier for the data being removed.\n *\n * @returns A promise that is rejected if remove fails and succeeds otherwise.\n */\n async remove(id) {\n await this._ready;\n await this._remove(id);\n this._changed.emit({ id, type: 'remove' });\n }\n /**\n * Save a value in the database.\n *\n * @param id - The identifier for the data being saved.\n *\n * @param value - The data being saved.\n *\n * @returns A promise that is rejected if saving fails and succeeds otherwise.\n *\n * #### Notes\n * The `id` values of stored items in the state database are formatted:\n * `'namespace:identifier'`, which is the same convention that command\n * identifiers in JupyterLab use as well. While this is not a technical\n * requirement for `fetch()`, `remove()`, and `save()`, it *is* necessary for\n * using the `list(namespace: string)` method.\n */\n async save(id, value) {\n await this._ready;\n await this._save(id, value);\n this._changed.emit({ id, type: 'save' });\n }\n /**\n * Return a serialized copy of the state database's entire contents.\n *\n * @returns A promise that resolves with the database contents as JSON.\n */\n async toJSON() {\n await this._ready;\n const { ids, values } = await this._list();\n return values.reduce((acc, val, idx) => {\n acc[ids[idx]] = val;\n return acc;\n }, {});\n }\n /**\n * Clear the entire database.\n */\n async _clear() {\n await Promise.all((await this._list()).ids.map(id => this._remove(id)));\n }\n /**\n * Fetch a value from the database.\n */\n async _fetch(id) {\n const value = await this._connector.fetch(id);\n if (value) {\n return JSON.parse(value).v;\n }\n }\n /**\n * Fetch a list from the database.\n */\n async _list(namespace = '') {\n const { ids, values } = await this._connector.list(namespace);\n return {\n ids,\n values: values.map(val => JSON.parse(val).v)\n };\n }\n /**\n * Merge data into the state database.\n */\n async _merge(contents) {\n await Promise.all(Object.keys(contents).map(key => contents[key] && this._save(key, contents[key])));\n }\n /**\n * Overwrite the entire database with new contents.\n */\n async _overwrite(contents) {\n await this._clear();\n await this._merge(contents);\n }\n /**\n * Remove a key in the database.\n */\n async _remove(id) {\n return this._connector.remove(id);\n }\n /**\n * Save a key and its value in the database.\n */\n async _save(id, value) {\n return this._connector.save(id, JSON.stringify({ v: value }));\n }\n}\nexports.StateDB = StateDB;\n/**\n * A namespace for StateDB statics.\n */\n(function (StateDB) {\n /**\n * An in-memory string key/value data connector.\n */\n class Connector {\n constructor() {\n this._storage = {};\n }\n /**\n * Retrieve an item from the data connector.\n */\n async fetch(id) {\n return this._storage[id];\n }\n /**\n * Retrieve the list of items available from the data connector.\n *\n * @param namespace - If not empty, only keys whose first token before `:`\n * exactly match `namespace` will be returned, e.g. `foo` in `foo:bar`.\n */\n async list(namespace = '') {\n return Object.keys(this._storage).reduce((acc, val) => {\n if (namespace === '' ? true : namespace === val.split(':')[0]) {\n acc.ids.push(val);\n acc.values.push(this._storage[val]);\n }\n return acc;\n }, { ids: [], values: [] });\n }\n /**\n * Remove a value using the data connector.\n */\n async remove(id) {\n delete this._storage[id];\n }\n /**\n * Save a value using the data connector.\n */\n async save(id, value) {\n this._storage[id] = value;\n }\n }\n StateDB.Connector = Connector;\n})(StateDB = exports.StateDB || (exports.StateDB = {}));\n//# sourceMappingURL=statedb.js.map","\"use strict\";\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.IStateDB = void 0;\nconst coreutils_1 = require(\"@lumino/coreutils\");\n/**\n * The default state database token.\n */\nexports.IStateDB = new coreutils_1.Token('@jupyterlab/coreutils:IStateDB', `A service for the JupyterLab state database.\n Use this if you want to store data that will persist across page loads.\n See \"state database\" for more information.`);\n//# sourceMappingURL=tokens.js.map","(function (global, factory) {\n typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :\n typeof define === 'function' && define.amd ? define(['exports'], factory) :\n (global = typeof globalThis !== 'undefined' ? globalThis : global || self, factory(global.lumino_coreutils = {}));\n})(this, (function (exports) { 'use strict';\n\n // Copyright (c) Jupyter Development Team.\n // Distributed under the terms of the Modified BSD License.\n /*-----------------------------------------------------------------------------\n | Copyright (c) 2014-2017, PhosphorJS Contributors\n |\n | Distributed under the terms of the BSD 3-Clause License.\n |\n | The full license is in the file LICENSE, distributed with this software.\n |----------------------------------------------------------------------------*/\n /**\n * The namespace for JSON-specific functions.\n */\n exports.JSONExt = void 0;\n (function (JSONExt) {\n /**\n * A shared frozen empty JSONObject\n */\n JSONExt.emptyObject = Object.freeze({});\n /**\n * A shared frozen empty JSONArray\n */\n JSONExt.emptyArray = Object.freeze([]);\n /**\n * Test whether a JSON value is a primitive.\n *\n * @param value - The JSON value of interest.\n *\n * @returns `true` if the value is a primitive,`false` otherwise.\n */\n function isPrimitive(value) {\n return (value === null ||\n typeof value === 'boolean' ||\n typeof value === 'number' ||\n typeof value === 'string');\n }\n JSONExt.isPrimitive = isPrimitive;\n function isArray(value) {\n return Array.isArray(value);\n }\n JSONExt.isArray = isArray;\n function isObject(value) {\n return !isPrimitive(value) && !isArray(value);\n }\n JSONExt.isObject = isObject;\n /**\n * Compare two JSON values for deep equality.\n *\n * @param first - The first JSON value of interest.\n *\n * @param second - The second JSON value of interest.\n *\n * @returns `true` if the values are equivalent, `false` otherwise.\n */\n function deepEqual(first, second) {\n // Check referential and primitive equality first.\n if (first === second) {\n return true;\n }\n // If one is a primitive, the `===` check ruled out the other.\n if (isPrimitive(first) || isPrimitive(second)) {\n return false;\n }\n // Test whether they are arrays.\n let a1 = isArray(first);\n let a2 = isArray(second);\n // Bail if the types are different.\n if (a1 !== a2) {\n return false;\n }\n // If they are both arrays, compare them.\n if (a1 && a2) {\n return deepArrayEqual(first, second);\n }\n // At this point, they must both be objects.\n return deepObjectEqual(first, second);\n }\n JSONExt.deepEqual = deepEqual;\n /**\n * Create a deep copy of a JSON value.\n *\n * @param value - The JSON value to copy.\n *\n * @returns A deep copy of the given JSON value.\n */\n function deepCopy(value) {\n // Do nothing for primitive values.\n if (isPrimitive(value)) {\n return value;\n }\n // Deep copy an array.\n if (isArray(value)) {\n return deepArrayCopy(value);\n }\n // Deep copy an object.\n return deepObjectCopy(value);\n }\n JSONExt.deepCopy = deepCopy;\n /**\n * Compare two JSON arrays for deep equality.\n */\n function deepArrayEqual(first, second) {\n // Check referential equality first.\n if (first === second) {\n return true;\n }\n // Test the arrays for equal length.\n if (first.length !== second.length) {\n return false;\n }\n // Compare the values for equality.\n for (let i = 0, n = first.length; i < n; ++i) {\n if (!deepEqual(first[i], second[i])) {\n return false;\n }\n }\n // At this point, the arrays are equal.\n return true;\n }\n /**\n * Compare two JSON objects for deep equality.\n */\n function deepObjectEqual(first, second) {\n // Check referential equality first.\n if (first === second) {\n return true;\n }\n // Check for the first object's keys in the second object.\n for (let key in first) {\n if (first[key] !== undefined && !(key in second)) {\n return false;\n }\n }\n // Check for the second object's keys in the first object.\n for (let key in second) {\n if (second[key] !== undefined && !(key in first)) {\n return false;\n }\n }\n // Compare the values for equality.\n for (let key in first) {\n // Get the values.\n let firstValue = first[key];\n let secondValue = second[key];\n // If both are undefined, ignore the key.\n if (firstValue === undefined && secondValue === undefined) {\n continue;\n }\n // If only one value is undefined, the objects are not equal.\n if (firstValue === undefined || secondValue === undefined) {\n return false;\n }\n // Compare the values.\n if (!deepEqual(firstValue, secondValue)) {\n return false;\n }\n }\n // At this point, the objects are equal.\n return true;\n }\n /**\n * Create a deep copy of a JSON array.\n */\n function deepArrayCopy(value) {\n let result = new Array(value.length);\n for (let i = 0, n = value.length; i < n; ++i) {\n result[i] = deepCopy(value[i]);\n }\n return result;\n }\n /**\n * Create a deep copy of a JSON object.\n */\n function deepObjectCopy(value) {\n let result = {};\n for (let key in value) {\n // Ignore undefined values.\n let subvalue = value[key];\n if (subvalue === undefined) {\n continue;\n }\n result[key] = deepCopy(subvalue);\n }\n return result;\n }\n })(exports.JSONExt || (exports.JSONExt = {}));\n\n // Copyright (c) Jupyter Development Team.\n // Distributed under the terms of the Modified BSD License.\n /*-----------------------------------------------------------------------------\n | Copyright (c) 2014-2017, PhosphorJS Contributors\n |\n | Distributed under the terms of the BSD 3-Clause License.\n |\n | The full license is in the file LICENSE, distributed with this software.\n |----------------------------------------------------------------------------*/\n /**\n * An object which stores MIME data for general application use.\n *\n * #### Notes\n * This class does not attempt to enforce \"correctness\" of MIME types\n * and their associated data. Since this class is designed to transfer\n * arbitrary data and objects within the same application, it assumes\n * that the user provides correct and accurate data.\n */\n class MimeData {\n constructor() {\n this._types = [];\n this._values = [];\n }\n /**\n * Get an array of the MIME types contained within the dataset.\n *\n * @returns A new array of the MIME types, in order of insertion.\n */\n types() {\n return this._types.slice();\n }\n /**\n * Test whether the dataset has an entry for the given type.\n *\n * @param mime - The MIME type of interest.\n *\n * @returns `true` if the dataset contains a value for the given\n * MIME type, `false` otherwise.\n */\n hasData(mime) {\n return this._types.indexOf(mime) !== -1;\n }\n /**\n * Get the data value for the given MIME type.\n *\n * @param mime - The MIME type of interest.\n *\n * @returns The value for the given MIME type, or `undefined` if\n * the dataset does not contain a value for the type.\n */\n getData(mime) {\n let i = this._types.indexOf(mime);\n return i !== -1 ? this._values[i] : undefined;\n }\n /**\n * Set the data value for the given MIME type.\n *\n * @param mime - The MIME type of interest.\n *\n * @param data - The data value for the given MIME type.\n *\n * #### Notes\n * This will overwrite any previous entry for the MIME type.\n */\n setData(mime, data) {\n this.clearData(mime);\n this._types.push(mime);\n this._values.push(data);\n }\n /**\n * Remove the data entry for the given MIME type.\n *\n * @param mime - The MIME type of interest.\n *\n * #### Notes\n * This is a no-op if there is no entry for the given MIME type.\n */\n clearData(mime) {\n let i = this._types.indexOf(mime);\n if (i !== -1) {\n this._types.splice(i, 1);\n this._values.splice(i, 1);\n }\n }\n /**\n * Remove all data entries from the dataset.\n */\n clear() {\n this._types.length = 0;\n this._values.length = 0;\n }\n }\n\n // Copyright (c) Jupyter Development Team.\n // Distributed under the terms of the Modified BSD License.\n /*-----------------------------------------------------------------------------\n | Copyright (c) 2014-2017, PhosphorJS Contributors\n |\n | Distributed under the terms of the BSD 3-Clause License.\n |\n | The full license is in the file LICENSE, distributed with this software.\n |----------------------------------------------------------------------------*/\n /**\n * A class which wraps a promise into a delegate object.\n *\n * #### Notes\n * This class is useful when the logic to resolve or reject a promise\n * cannot be defined at the point where the promise is created.\n */\n class PromiseDelegate {\n /**\n * Construct a new promise delegate.\n */\n constructor() {\n this.promise = new Promise((resolve, reject) => {\n this._resolve = resolve;\n this._reject = reject;\n });\n }\n /**\n * Resolve the wrapped promise with the given value.\n *\n * @param value - The value to use for resolving the promise.\n */\n resolve(value) {\n let resolve = this._resolve;\n resolve(value);\n }\n /**\n * Reject the wrapped promise with the given value.\n *\n * @reason - The reason for rejecting the promise.\n */\n reject(reason) {\n let reject = this._reject;\n reject(reason);\n }\n }\n\n // Copyright (c) Jupyter Development Team.\n // Distributed under the terms of the Modified BSD License.\n /*-----------------------------------------------------------------------------\n | Copyright (c) 2014-2017, PhosphorJS Contributors\n |\n | Distributed under the terms of the BSD 3-Clause License.\n |\n | The full license is in the file LICENSE, distributed with this software.\n |----------------------------------------------------------------------------*/\n /**\n * A runtime object which captures compile-time type information.\n *\n * #### Notes\n * A token captures the compile-time type of an interface or class in\n * an object which can be used at runtime in a type-safe fashion.\n */\n class Token {\n /**\n * Construct a new token.\n *\n * @param name - A human readable name for the token.\n * @param description - Token purpose description for documentation.\n */\n constructor(name, description) {\n this.name = name;\n this.description = description !== null && description !== void 0 ? description : '';\n this._tokenStructuralPropertyT = null;\n }\n }\n\n // Copyright (c) Jupyter Development Team.\n // Distributed under the terms of the Modified BSD License.\n /*-----------------------------------------------------------------------------\n | Copyright (c) 2014-2017, PhosphorJS Contributors\n |\n | Distributed under the terms of the BSD 3-Clause License.\n |\n | The full license is in the file LICENSE, distributed with this software.\n |----------------------------------------------------------------------------*/\n // Fallback\n function fallbackRandomValues(buffer) {\n let value = 0;\n for (let i = 0, n = buffer.length; i < n; ++i) {\n if (i % 4 === 0) {\n value = (Math.random() * 0xffffffff) >>> 0;\n }\n buffer[i] = value & 0xff;\n value >>>= 8;\n }\n }\n\n // Copyright (c) Jupyter Development Team.\n // Distributed under the terms of the Modified BSD License.\n /*-----------------------------------------------------------------------------\n | Copyright (c) 2014-2017, PhosphorJS Contributors\n |\n | Distributed under the terms of the BSD 3-Clause License.\n |\n | The full license is in the file LICENSE, distributed with this software.\n |----------------------------------------------------------------------------*/\n /**\n * The namespace for random number related functionality.\n */\n exports.Random = void 0;\n (function (Random) {\n /**\n * A function which generates random bytes.\n *\n * @param buffer - The `Uint8Array` to fill with random bytes.\n *\n * #### Notes\n * A cryptographically strong random number generator will be used if\n * available. Otherwise, `Math.random` will be used as a fallback for\n * randomness.\n *\n * The following RNGs are supported, listed in order of precedence:\n * - `window.crypto.getRandomValues`\n * - `window.msCrypto.getRandomValues`\n * - `require('crypto').randomFillSync\n * - `require('crypto').randomBytes\n * - `Math.random`\n */\n Random.getRandomValues = (() => {\n // Look up the crypto module if available.\n const crypto = (typeof window !== 'undefined' && (window.crypto || window.msCrypto)) ||\n null;\n // Modern browsers and IE 11\n if (crypto && typeof crypto.getRandomValues === 'function') {\n return function getRandomValues(buffer) {\n return crypto.getRandomValues(buffer);\n };\n }\n // Fallback\n return fallbackRandomValues;\n })();\n })(exports.Random || (exports.Random = {}));\n\n // Copyright (c) Jupyter Development Team.\n // Distributed under the terms of the Modified BSD License.\n /*-----------------------------------------------------------------------------\n | Copyright (c) 2014-2017, PhosphorJS Contributors\n |\n | Distributed under the terms of the BSD 3-Clause License.\n |\n | The full license is in the file LICENSE, distributed with this software.\n |----------------------------------------------------------------------------*/\n /**\n * A function which creates a function that generates UUID v4 identifiers.\n *\n * @returns A new function that creates a UUID v4 string.\n *\n * #### Notes\n * This implementation complies with RFC 4122.\n *\n * This uses `Random.getRandomValues()` for random bytes, which in\n * turn will use the underlying `crypto` module of the platform if\n * it is available. The fallback for randomness is `Math.random`.\n */\n function uuid4Factory(getRandomValues) {\n // Create a 16 byte array to hold the random values.\n const bytes = new Uint8Array(16);\n // Create a look up table from bytes to hex strings.\n const lut = new Array(256);\n // Pad the single character hex digits with a leading zero.\n for (let i = 0; i < 16; ++i) {\n lut[i] = '0' + i.toString(16);\n }\n // Populate the rest of the hex digits.\n for (let i = 16; i < 256; ++i) {\n lut[i] = i.toString(16);\n }\n // Return a function which generates the UUID.\n return function uuid4() {\n // Get a new batch of random values.\n getRandomValues(bytes);\n // Set the UUID version number to 4.\n bytes[6] = 0x40 | (bytes[6] & 0x0f);\n // Set the clock sequence bit to the RFC spec.\n bytes[8] = 0x80 | (bytes[8] & 0x3f);\n // Assemble the UUID string.\n return (lut[bytes[0]] +\n lut[bytes[1]] +\n lut[bytes[2]] +\n lut[bytes[3]] +\n '-' +\n lut[bytes[4]] +\n lut[bytes[5]] +\n '-' +\n lut[bytes[6]] +\n lut[bytes[7]] +\n '-' +\n lut[bytes[8]] +\n lut[bytes[9]] +\n '-' +\n lut[bytes[10]] +\n lut[bytes[11]] +\n lut[bytes[12]] +\n lut[bytes[13]] +\n lut[bytes[14]] +\n lut[bytes[15]]);\n };\n }\n\n // Copyright (c) Jupyter Development Team.\n // Distributed under the terms of the Modified BSD License.\n /*-----------------------------------------------------------------------------\n | Copyright (c) 2014-2017, PhosphorJS Contributors\n |\n | Distributed under the terms of the BSD 3-Clause License.\n |\n | The full license is in the file LICENSE, distributed with this software.\n |----------------------------------------------------------------------------*/\n /**\n * The namespace for UUID related functionality.\n */\n exports.UUID = void 0;\n (function (UUID) {\n /**\n * A function which generates UUID v4 identifiers.\n *\n * @returns A new UUID v4 string.\n *\n * #### Notes\n * This implementation complies with RFC 4122.\n *\n * This uses `Random.getRandomValues()` for random bytes, which in\n * turn will use the underlying `crypto` module of the platform if\n * it is available. The fallback for randomness is `Math.random`.\n */\n UUID.uuid4 = uuid4Factory(exports.Random.getRandomValues);\n })(exports.UUID || (exports.UUID = {}));\n\n exports.MimeData = MimeData;\n exports.PromiseDelegate = PromiseDelegate;\n exports.Token = Token;\n\n}));\n//# sourceMappingURL=index.js.map\n","import { Signal } from '@lumino/signaling';\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * @packageDocumentation\n * @module disposable\n */\n/**\n * A disposable object which delegates to a callback function.\n */\nclass DisposableDelegate {\n /**\n * Construct a new disposable delegate.\n *\n * @param fn - The callback function to invoke on dispose.\n */\n constructor(fn) {\n this._fn = fn;\n }\n /**\n * Test whether the delegate has been disposed.\n */\n get isDisposed() {\n return !this._fn;\n }\n /**\n * Dispose of the delegate and invoke the callback function.\n */\n dispose() {\n if (!this._fn) {\n return;\n }\n let fn = this._fn;\n this._fn = null;\n fn();\n }\n}\n/**\n * An observable disposable object which delegates to a callback function.\n */\nclass ObservableDisposableDelegate extends DisposableDelegate {\n constructor() {\n super(...arguments);\n this._disposed = new Signal(this);\n }\n /**\n * A signal emitted when the delegate is disposed.\n */\n get disposed() {\n return this._disposed;\n }\n /**\n * Dispose of the delegate and invoke the callback function.\n */\n dispose() {\n if (this.isDisposed) {\n return;\n }\n super.dispose();\n this._disposed.emit(undefined);\n Signal.clearData(this);\n }\n}\n/**\n * An object which manages a collection of disposable items.\n */\nclass DisposableSet {\n constructor() {\n this._isDisposed = false;\n this._items = new Set();\n }\n /**\n * Test whether the set has been disposed.\n */\n get isDisposed() {\n return this._isDisposed;\n }\n /**\n * Dispose of the set and the items it contains.\n *\n * #### Notes\n * Items are disposed in the order they are added to the set.\n */\n dispose() {\n if (this._isDisposed) {\n return;\n }\n this._isDisposed = true;\n this._items.forEach(item => {\n item.dispose();\n });\n this._items.clear();\n }\n /**\n * Test whether the set contains a specific item.\n *\n * @param item - The item of interest.\n *\n * @returns `true` if the set contains the item, `false` otherwise.\n */\n contains(item) {\n return this._items.has(item);\n }\n /**\n * Add a disposable item to the set.\n *\n * @param item - The item to add to the set.\n *\n * #### Notes\n * If the item is already contained in the set, this is a no-op.\n */\n add(item) {\n this._items.add(item);\n }\n /**\n * Remove a disposable item from the set.\n *\n * @param item - The item to remove from the set.\n *\n * #### Notes\n * If the item is not contained in the set, this is a no-op.\n */\n remove(item) {\n this._items.delete(item);\n }\n /**\n * Remove all items from the set.\n */\n clear() {\n this._items.clear();\n }\n}\n/**\n * The namespace for the `DisposableSet` class statics.\n */\n(function (DisposableSet) {\n /**\n * Create a disposable set from an iterable of items.\n *\n * @param items - The iterable object of interest.\n *\n * @returns A new disposable initialized with the given items.\n */\n function from(items) {\n let set = new DisposableSet();\n for (const item of items) {\n set.add(item);\n }\n return set;\n }\n DisposableSet.from = from;\n})(DisposableSet || (DisposableSet = {}));\n/**\n * An observable object which manages a collection of disposable items.\n */\nclass ObservableDisposableSet extends DisposableSet {\n constructor() {\n super(...arguments);\n this._disposed = new Signal(this);\n }\n /**\n * A signal emitted when the set is disposed.\n */\n get disposed() {\n return this._disposed;\n }\n /**\n * Dispose of the set and the items it contains.\n *\n * #### Notes\n * Items are disposed in the order they are added to the set.\n */\n dispose() {\n if (this.isDisposed) {\n return;\n }\n super.dispose();\n this._disposed.emit(undefined);\n Signal.clearData(this);\n }\n}\n/**\n * The namespace for the `ObservableDisposableSet` class statics.\n */\n(function (ObservableDisposableSet) {\n /**\n * Create an observable disposable set from an iterable of items.\n *\n * @param items - The iterable object of interest.\n *\n * @returns A new disposable initialized with the given items.\n */\n function from(items) {\n let set = new ObservableDisposableSet();\n for (const item of items) {\n set.add(item);\n }\n return set;\n }\n ObservableDisposableSet.from = from;\n})(ObservableDisposableSet || (ObservableDisposableSet = {}));\n\nexport { DisposableDelegate, DisposableSet, ObservableDisposableDelegate, ObservableDisposableSet };\n//# sourceMappingURL=index.es6.js.map\n","import { PromiseDelegate, JSONExt } from '@lumino/coreutils';\nimport { Signal } from '@lumino/signaling';\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/**\n * A class that wraps an asynchronous function to poll at a regular interval\n * with exponential increases to the interval length if the poll fails.\n *\n * @typeparam T - The resolved type of the factory's promises.\n * Defaults to `any`.\n *\n * @typeparam U - The rejected type of the factory's promises.\n * Defaults to `any`.\n *\n * @typeparam V - An optional type to extend the phases supported by a poll.\n * Defaults to `standby`, which already exists in the `Phase` type.\n */\nclass Poll {\n /**\n * Instantiate a new poll with exponential backoff in case of failure.\n *\n * @param options - The poll instantiation options.\n */\n constructor(options) {\n var _a;\n this._disposed = new Signal(this);\n this._lingered = 0;\n this._tick = new PromiseDelegate();\n this._ticked = new Signal(this);\n this._factory = options.factory;\n this._linger = (_a = options.linger) !== null && _a !== void 0 ? _a : Private.DEFAULT_LINGER;\n this._standby = options.standby || Private.DEFAULT_STANDBY;\n this._state = { ...Private.DEFAULT_STATE, timestamp: new Date().getTime() };\n // Normalize poll frequency `max` to be the greater of\n // default `max`, `options.frequency.max`, or `options.frequency.interval`.\n const frequency = options.frequency || {};\n const max = Math.max(frequency.interval || 0, frequency.max || 0, Private.DEFAULT_FREQUENCY.max);\n this.frequency = { ...Private.DEFAULT_FREQUENCY, ...frequency, ...{ max } };\n this.name = options.name || Private.DEFAULT_NAME;\n if ('auto' in options ? options.auto : true) {\n setTimeout(() => this.start());\n }\n }\n /**\n * A signal emitted when the poll is disposed.\n */\n get disposed() {\n return this._disposed;\n }\n /**\n * The polling frequency parameters.\n */\n get frequency() {\n return this._frequency;\n }\n set frequency(frequency) {\n if (this.isDisposed || JSONExt.deepEqual(frequency, this.frequency || {})) {\n return;\n }\n let { backoff, interval, max } = frequency;\n interval = Math.round(interval);\n max = Math.round(max);\n if (typeof backoff === 'number' && backoff < 1) {\n throw new Error('Poll backoff growth factor must be at least 1');\n }\n if ((interval < 0 || interval > max) && interval !== Poll.NEVER) {\n throw new Error('Poll interval must be between 0 and max');\n }\n if (max > Poll.MAX_INTERVAL && max !== Poll.NEVER) {\n throw new Error(`Max interval must be less than ${Poll.MAX_INTERVAL}`);\n }\n this._frequency = { backoff, interval, max };\n }\n /**\n * Whether the poll is disposed.\n */\n get isDisposed() {\n return this.state.phase === 'disposed';\n }\n /**\n * Indicates when the poll switches to standby.\n */\n get standby() {\n return this._standby;\n }\n set standby(standby) {\n if (this.isDisposed || this.standby === standby) {\n return;\n }\n this._standby = standby;\n }\n /**\n * The poll state, which is the content of the current poll tick.\n */\n get state() {\n return this._state;\n }\n /**\n * A promise that resolves when the poll next ticks.\n */\n get tick() {\n return this._tick.promise;\n }\n /**\n * A signal emitted when the poll ticks and fires off a new request.\n */\n get ticked() {\n return this._ticked;\n }\n /**\n * Return an async iterator that yields every tick.\n */\n async *[Symbol.asyncIterator]() {\n while (!this.isDisposed) {\n yield this.state;\n await this.tick.catch(() => undefined);\n }\n }\n /**\n * Dispose the poll.\n */\n dispose() {\n if (this.isDisposed) {\n return;\n }\n this._state = {\n ...Private.DISPOSED_STATE,\n timestamp: new Date().getTime()\n };\n this._tick.promise.catch(_ => undefined);\n this._tick.reject(new Error(`Poll (${this.name}) is disposed.`));\n this._disposed.emit(undefined);\n Signal.clearData(this);\n }\n /**\n * Refreshes the poll. Schedules `refreshed` tick if necessary.\n *\n * @returns A promise that resolves after tick is scheduled and never rejects.\n *\n * #### Notes\n * The returned promise resolves after the tick is scheduled, but before\n * the polling action is run. To wait until after the poll action executes,\n * await the `poll.tick` promise: `await poll.refresh(); await poll.tick;`\n */\n refresh() {\n return this.schedule({\n cancel: ({ phase }) => phase === 'refreshed',\n interval: Poll.IMMEDIATE,\n phase: 'refreshed'\n });\n }\n /**\n * Schedule the next poll tick.\n *\n * @param next - The next poll state data to schedule. Defaults to standby.\n *\n * @param next.cancel - Cancels state transition if function returns `true`.\n *\n * @returns A promise that resolves when the next poll state is active.\n *\n * #### Notes\n * This method is not meant to be invoked by user code typically. It is public\n * to allow poll instances to be composed into classes that schedule ticks.\n */\n async schedule(next = {}) {\n if (this.isDisposed) {\n return;\n }\n // Check if the phase transition should be canceled.\n if (next.cancel && next.cancel(this.state)) {\n return;\n }\n // Update poll state.\n const pending = this._tick;\n const scheduled = new PromiseDelegate();\n const state = {\n interval: this.frequency.interval,\n payload: null,\n phase: 'standby',\n timestamp: new Date().getTime(),\n ...next\n };\n this._state = state;\n this._tick = scheduled;\n // Clear the schedule if possible.\n clearTimeout(this._timeout);\n // Emit ticked signal, resolve pending promise, and await its settlement.\n this._ticked.emit(this.state);\n pending.resolve(this);\n await pending.promise;\n if (state.interval === Poll.NEVER) {\n this._timeout = undefined;\n return;\n }\n // Schedule next execution and cache its timeout handle.\n const execute = () => {\n if (this.isDisposed || this.tick !== scheduled.promise) {\n return;\n }\n this._execute();\n };\n // Cache the handle in case it needs to be unscheduled.\n this._timeout = setTimeout(execute, state.interval);\n }\n /**\n * Starts the poll. Schedules `started` tick if necessary.\n *\n * @returns A promise that resolves after tick is scheduled and never rejects.\n */\n start() {\n return this.schedule({\n cancel: ({ phase }) => phase !== 'constructed' && phase !== 'standby' && phase !== 'stopped',\n interval: Poll.IMMEDIATE,\n phase: 'started'\n });\n }\n /**\n * Stops the poll. Schedules `stopped` tick if necessary.\n *\n * @returns A promise that resolves after tick is scheduled and never rejects.\n */\n stop() {\n return this.schedule({\n cancel: ({ phase }) => phase === 'stopped',\n interval: Poll.NEVER,\n phase: 'stopped'\n });\n }\n /**\n * Whether the poll is hidden.\n *\n * #### Notes\n * This property is only relevant in a browser context.\n */\n get hidden() {\n return Private.hidden;\n }\n /**\n * Execute a new poll factory promise or stand by if necessary.\n */\n _execute() {\n let standby = typeof this.standby === 'function' ? this.standby() : this.standby;\n // Check if execution should proceed, linger, or stand by.\n if (standby === 'never') {\n standby = false;\n }\n else if (standby === 'when-hidden') {\n if (this.hidden) {\n standby = ++this._lingered > this._linger;\n }\n else {\n this._lingered = 0;\n standby = false;\n }\n }\n // If in standby mode schedule next tick without calling the factory.\n if (standby) {\n void this.schedule();\n return;\n }\n const pending = this.tick;\n this._factory(this.state)\n .then((resolved) => {\n if (this.isDisposed || this.tick !== pending) {\n return;\n }\n void this.schedule({\n payload: resolved,\n phase: this.state.phase === 'rejected' ? 'reconnected' : 'resolved'\n });\n })\n .catch((rejected) => {\n if (this.isDisposed || this.tick !== pending) {\n return;\n }\n void this.schedule({\n interval: Private.sleep(this.frequency, this.state),\n payload: rejected,\n phase: 'rejected'\n });\n });\n }\n}\n/**\n * A namespace for `Poll` types, interfaces, and statics.\n */\n(function (Poll) {\n /**\n * An interval value in ms that indicates the poll should tick immediately.\n */\n Poll.IMMEDIATE = 0;\n /**\n * Delays are 32-bit integers in many browsers so intervals need to be capped.\n *\n * #### Notes\n * https://developer.mozilla.org/en-US/docs/Web/API/WindowOrWorkerGlobalScope/setTimeout#Maximum_delay_value\n */\n Poll.MAX_INTERVAL = 2147483647;\n /**\n * An interval value that indicates the poll should never tick.\n */\n Poll.NEVER = Infinity;\n})(Poll || (Poll = {}));\n/**\n * A namespace for private module data.\n */\nvar Private;\n(function (Private) {\n /**\n * The default backoff growth rate if `backoff` is `true`.\n */\n Private.DEFAULT_BACKOFF = 3;\n /**\n * The default polling frequency.\n */\n Private.DEFAULT_FREQUENCY = {\n backoff: true,\n interval: 1000,\n max: 30 * 1000\n };\n /**\n * The default number of times to `linger` when a poll is hidden.\n */\n Private.DEFAULT_LINGER = 1;\n /**\n * The default poll name.\n */\n Private.DEFAULT_NAME = 'unknown';\n /**\n * The default poll standby behavior.\n */\n Private.DEFAULT_STANDBY = 'when-hidden';\n /**\n * The first poll tick state's default values superseded in constructor.\n */\n Private.DEFAULT_STATE = {\n interval: Poll.NEVER,\n payload: null,\n phase: 'constructed',\n timestamp: new Date(0).getTime()\n };\n /**\n * The disposed tick state values.\n */\n Private.DISPOSED_STATE = {\n interval: Poll.NEVER,\n payload: null,\n phase: 'disposed',\n timestamp: new Date(0).getTime()\n };\n /**\n * Returns the number of milliseconds to sleep before the next tick.\n *\n * @param frequency - The poll's base frequency.\n * @param last - The poll's last tick.\n */\n function sleep(frequency, last) {\n const { backoff, interval, max } = frequency;\n if (interval === Poll.NEVER) {\n return interval;\n }\n const growth = backoff === true ? Private.DEFAULT_BACKOFF : backoff === false ? 1 : backoff;\n const random = getRandomIntInclusive(interval, last.interval * growth);\n return Math.min(max, random);\n }\n Private.sleep = sleep;\n /**\n * Keep track of whether the document is hidden. This flag is only relevant in\n * a browser context.\n *\n * Listen to `visibilitychange` event to set the `hidden` flag.\n *\n * Listening to `pagehide` is also necessary because Safari support for\n * `visibilitychange` events is partial, cf.\n * https://developer.mozilla.org/docs/Web/API/Document/visibilitychange_event\n */\n Private.hidden = (() => {\n if (typeof document === 'undefined') {\n return false;\n }\n document.addEventListener('visibilitychange', () => {\n Private.hidden = document.visibilityState === 'hidden';\n });\n document.addEventListener('pagehide', () => {\n Private.hidden = document.visibilityState === 'hidden';\n });\n return document.visibilityState === 'hidden';\n })();\n /**\n * Get a random integer between min and max, inclusive of both.\n *\n * #### Notes\n * From\n * https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Math/random#Getting_a_random_integer_between_two_values_inclusive\n *\n * From the MDN page: It might be tempting to use Math.round() to accomplish\n * that, but doing so would cause your random numbers to follow a non-uniform\n * distribution, which may not be acceptable for your needs.\n */\n function getRandomIntInclusive(min, max) {\n min = Math.ceil(min);\n max = Math.floor(max);\n return Math.floor(Math.random() * (max - min + 1)) + min;\n }\n})(Private || (Private = {}));\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/**\n * A base class to implement rate limiters with different invocation strategies.\n *\n * @typeparam T - The resolved type of the underlying function.\n *\n * @typeparam U - The rejected type of the underlying function.\n *\n * @typeparam V - Arguments for the underlying function.\n */\nclass RateLimiter {\n /**\n * Instantiate a rate limiter.\n *\n * @param fn - The function to rate limit.\n *\n * @param limit - The rate limit; defaults to 500ms.\n */\n constructor(fn, limit = 500) {\n /**\n * Arguments for the underlying function.\n */\n this.args = undefined;\n /**\n * A promise that resolves on each successful invocation.\n */\n this.payload = null;\n this.limit = limit;\n this.poll = new Poll({\n auto: false,\n factory: async () => {\n const { args } = this;\n this.args = undefined;\n return fn(...args);\n },\n frequency: { backoff: false, interval: Poll.NEVER, max: Poll.NEVER },\n standby: 'never'\n });\n this.payload = new PromiseDelegate();\n this.poll.ticked.connect((_, state) => {\n const { payload } = this;\n if (state.phase === 'resolved') {\n this.payload = new PromiseDelegate();\n payload.resolve(state.payload);\n return;\n }\n if (state.phase === 'rejected' || state.phase === 'stopped') {\n this.payload = new PromiseDelegate();\n payload.promise.catch(_ => undefined);\n payload.reject(state.payload);\n return;\n }\n }, this);\n }\n /**\n * Whether the rate limiter is disposed.\n */\n get isDisposed() {\n return this.payload === null;\n }\n /**\n * Disposes the rate limiter.\n */\n dispose() {\n if (this.isDisposed) {\n return;\n }\n this.args = undefined;\n this.payload = null;\n this.poll.dispose();\n }\n /**\n * Stop the function if it is mid-flight.\n */\n async stop() {\n return this.poll.stop();\n }\n}\n/**\n * Wraps and debounces a function that can be called multiple times and only\n * executes the underlying function one `interval` after the last invocation.\n *\n * @typeparam T - The resolved type of the underlying function. Defaults to any.\n *\n * @typeparam U - The rejected type of the underlying function. Defaults to any.\n *\n * @typeparam V - Arguments for the underlying function. Defaults to any[].\n */\nclass Debouncer extends RateLimiter {\n /**\n * Invokes the function and only executes after rate limit has elapsed.\n * Each invocation resets the timer.\n */\n invoke(...args) {\n this.args = args;\n void this.poll.schedule({ interval: this.limit, phase: 'invoked' });\n return this.payload.promise;\n }\n}\n/**\n * Wraps and throttles a function that can be called multiple times and only\n * executes the underlying function once per `interval`.\n *\n * @typeparam T - The resolved type of the underlying function. Defaults to any.\n *\n * @typeparam U - The rejected type of the underlying function. Defaults to any.\n *\n * @typeparam V - Arguments for the underlying function. Defaults to any[].\n */\nclass Throttler extends RateLimiter {\n /**\n * Instantiate a throttler.\n *\n * @param fn - The function being throttled.\n *\n * @param options - Throttling configuration or throttling limit in ms.\n *\n * #### Notes\n * The `edge` defaults to `leading`; the `limit` defaults to `500`.\n */\n constructor(fn, options) {\n super(fn, typeof options === 'number' ? options : options && options.limit);\n this._trailing = false;\n if (typeof options !== 'number' && options && options.edge === 'trailing') {\n this._trailing = true;\n }\n this._interval = this._trailing ? this.limit : Poll.IMMEDIATE;\n }\n /**\n * Throttles function invocations if one is currently in flight.\n */\n invoke(...args) {\n const idle = this.poll.state.phase !== 'invoked';\n if (idle || this._trailing) {\n this.args = args;\n }\n if (idle) {\n void this.poll.schedule({ interval: this._interval, phase: 'invoked' });\n }\n return this.payload.promise;\n }\n}\n\nexport { Debouncer, Poll, RateLimiter, Throttler };\n//# sourceMappingURL=index.es6.js.map\n","// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * @packageDocumentation\n * @module properties\n */\n/**\n * A class which attaches a value to an external object.\n *\n * #### Notes\n * Attached properties are used to extend the state of an object with\n * semantic data from an unrelated class. They also encapsulate value\n * creation, coercion, and notification.\n *\n * Because attached property values are stored in a hash table, which\n * in turn is stored in a WeakMap keyed on the owner object, there is\n * non-trivial storage overhead involved in their use. The pattern is\n * therefore best used for the storage of rare data.\n */\nclass AttachedProperty {\n /**\n * Construct a new attached property.\n *\n * @param options - The options for initializing the property.\n */\n constructor(options) {\n this._pid = Private.nextPID();\n this.name = options.name;\n this._create = options.create;\n this._coerce = options.coerce || null;\n this._compare = options.compare || null;\n this._changed = options.changed || null;\n }\n /**\n * Get the current value of the property for a given owner.\n *\n * @param owner - The property owner of interest.\n *\n * @returns The current value of the property.\n *\n * #### Notes\n * If the value has not yet been set, the default value will be\n * computed and assigned as the current value of the property.\n */\n get(owner) {\n let value;\n let map = Private.ensureMap(owner);\n if (this._pid in map) {\n value = map[this._pid];\n }\n else {\n value = map[this._pid] = this._createValue(owner);\n }\n return value;\n }\n /**\n * Set the current value of the property for a given owner.\n *\n * @param owner - The property owner of interest.\n *\n * @param value - The value for the property.\n *\n * #### Notes\n * If the value has not yet been set, the default value will be\n * computed and used as the previous value for the comparison.\n */\n set(owner, value) {\n let oldValue;\n let map = Private.ensureMap(owner);\n if (this._pid in map) {\n oldValue = map[this._pid];\n }\n else {\n oldValue = map[this._pid] = this._createValue(owner);\n }\n let newValue = this._coerceValue(owner, value);\n this._maybeNotify(owner, oldValue, (map[this._pid] = newValue));\n }\n /**\n * Explicitly coerce the current property value for a given owner.\n *\n * @param owner - The property owner of interest.\n *\n * #### Notes\n * If the value has not yet been set, the default value will be\n * computed and used as the previous value for the comparison.\n */\n coerce(owner) {\n let oldValue;\n let map = Private.ensureMap(owner);\n if (this._pid in map) {\n oldValue = map[this._pid];\n }\n else {\n oldValue = map[this._pid] = this._createValue(owner);\n }\n let newValue = this._coerceValue(owner, oldValue);\n this._maybeNotify(owner, oldValue, (map[this._pid] = newValue));\n }\n /**\n * Get or create the default value for the given owner.\n */\n _createValue(owner) {\n let create = this._create;\n return create(owner);\n }\n /**\n * Coerce the value for the given owner.\n */\n _coerceValue(owner, value) {\n let coerce = this._coerce;\n return coerce ? coerce(owner, value) : value;\n }\n /**\n * Compare the old value and new value for equality.\n */\n _compareValue(oldValue, newValue) {\n let compare = this._compare;\n return compare ? compare(oldValue, newValue) : oldValue === newValue;\n }\n /**\n * Run the change notification if the given values are different.\n */\n _maybeNotify(owner, oldValue, newValue) {\n let changed = this._changed;\n if (changed && !this._compareValue(oldValue, newValue)) {\n changed(owner, oldValue, newValue);\n }\n }\n}\n/**\n * The namespace for the `AttachedProperty` class statics.\n */\n(function (AttachedProperty) {\n /**\n * Clear the stored property data for the given owner.\n *\n * @param owner - The property owner of interest.\n *\n * #### Notes\n * This will clear all property values for the owner, but it will\n * **not** run the change notification for any of the properties.\n */\n function clearData(owner) {\n Private.ownerData.delete(owner);\n }\n AttachedProperty.clearData = clearData;\n})(AttachedProperty || (AttachedProperty = {}));\n/**\n * The namespace for the module implementation details.\n */\nvar Private;\n(function (Private) {\n /**\n * A weak mapping of property owner to property map.\n */\n Private.ownerData = new WeakMap();\n /**\n * A function which computes successive unique property ids.\n */\n Private.nextPID = (() => {\n let id = 0;\n return () => {\n let rand = Math.random();\n let stem = `${rand}`.slice(2);\n return `pid-${stem}-${id++}`;\n };\n })();\n /**\n * Lookup the data map for the property owner.\n *\n * This will create the map if one does not already exist.\n */\n function ensureMap(owner) {\n let map = Private.ownerData.get(owner);\n if (map) {\n return map;\n }\n map = Object.create(null);\n Private.ownerData.set(owner, map);\n return map;\n }\n Private.ensureMap = ensureMap;\n})(Private || (Private = {}));\n\nexport { AttachedProperty };\n//# sourceMappingURL=index.es6.js.map\n","// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * The namespace for array-specific algorithms.\n */\nvar ArrayExt;\n(function (ArrayExt) {\n /**\n * Find the index of the first occurrence of a value in an array.\n *\n * @param array - The array-like object to search.\n *\n * @param value - The value to locate in the array. Values are\n * compared using strict `===` equality.\n *\n * @param start - The index of the first element in the range to be\n * searched, inclusive. The default value is `0`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @param stop - The index of the last element in the range to be\n * searched, inclusive. The default value is `-1`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @returns The index of the first occurrence of the value, or `-1`\n * if the value is not found.\n *\n * #### Notes\n * If `stop < start` the search will wrap at the end of the array.\n *\n * #### Complexity\n * Linear.\n *\n * #### Undefined Behavior\n * A `start` or `stop` which is non-integral.\n *\n * #### Example\n * ```typescript\n * import { ArrayExt } from '@lumino/algorithm';\n *\n * let data = ['one', 'two', 'three', 'four', 'one'];\n * ArrayExt.firstIndexOf(data, 'red'); // -1\n * ArrayExt.firstIndexOf(data, 'one'); // 0\n * ArrayExt.firstIndexOf(data, 'one', 1); // 4\n * ArrayExt.firstIndexOf(data, 'two', 2); // -1\n * ArrayExt.firstIndexOf(data, 'two', 2, 1); // 1\n * ```\n */\n function firstIndexOf(array, value, start = 0, stop = -1) {\n let n = array.length;\n if (n === 0) {\n return -1;\n }\n if (start < 0) {\n start = Math.max(0, start + n);\n }\n else {\n start = Math.min(start, n - 1);\n }\n if (stop < 0) {\n stop = Math.max(0, stop + n);\n }\n else {\n stop = Math.min(stop, n - 1);\n }\n let span;\n if (stop < start) {\n span = stop + 1 + (n - start);\n }\n else {\n span = stop - start + 1;\n }\n for (let i = 0; i < span; ++i) {\n let j = (start + i) % n;\n if (array[j] === value) {\n return j;\n }\n }\n return -1;\n }\n ArrayExt.firstIndexOf = firstIndexOf;\n /**\n * Find the index of the last occurrence of a value in an array.\n *\n * @param array - The array-like object to search.\n *\n * @param value - The value to locate in the array. Values are\n * compared using strict `===` equality.\n *\n * @param start - The index of the first element in the range to be\n * searched, inclusive. The default value is `-1`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @param stop - The index of the last element in the range to be\n * searched, inclusive. The default value is `0`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @returns The index of the last occurrence of the value, or `-1`\n * if the value is not found.\n *\n * #### Notes\n * If `start < stop` the search will wrap at the front of the array.\n *\n * #### Complexity\n * Linear.\n *\n * #### Undefined Behavior\n * A `start` or `stop` which is non-integral.\n *\n * #### Example\n * ```typescript\n * import { ArrayExt } from '@lumino/algorithm';\n *\n * let data = ['one', 'two', 'three', 'four', 'one'];\n * ArrayExt.lastIndexOf(data, 'red'); // -1\n * ArrayExt.lastIndexOf(data, 'one'); // 4\n * ArrayExt.lastIndexOf(data, 'one', 1); // 0\n * ArrayExt.lastIndexOf(data, 'two', 0); // -1\n * ArrayExt.lastIndexOf(data, 'two', 0, 1); // 1\n * ```\n */\n function lastIndexOf(array, value, start = -1, stop = 0) {\n let n = array.length;\n if (n === 0) {\n return -1;\n }\n if (start < 0) {\n start = Math.max(0, start + n);\n }\n else {\n start = Math.min(start, n - 1);\n }\n if (stop < 0) {\n stop = Math.max(0, stop + n);\n }\n else {\n stop = Math.min(stop, n - 1);\n }\n let span;\n if (start < stop) {\n span = start + 1 + (n - stop);\n }\n else {\n span = start - stop + 1;\n }\n for (let i = 0; i < span; ++i) {\n let j = (start - i + n) % n;\n if (array[j] === value) {\n return j;\n }\n }\n return -1;\n }\n ArrayExt.lastIndexOf = lastIndexOf;\n /**\n * Find the index of the first value which matches a predicate.\n *\n * @param array - The array-like object to search.\n *\n * @param fn - The predicate function to apply to the values.\n *\n * @param start - The index of the first element in the range to be\n * searched, inclusive. The default value is `0`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @param stop - The index of the last element in the range to be\n * searched, inclusive. The default value is `-1`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @returns The index of the first matching value, or `-1` if no\n * matching value is found.\n *\n * #### Notes\n * If `stop < start` the search will wrap at the end of the array.\n *\n * #### Complexity\n * Linear.\n *\n * #### Undefined Behavior\n * A `start` or `stop` which is non-integral.\n *\n * Modifying the length of the array while searching.\n *\n * #### Example\n * ```typescript\n * import { ArrayExt } from '@lumino/algorithm';\n *\n * function isEven(value: number): boolean {\n * return value % 2 === 0;\n * }\n *\n * let data = [1, 2, 3, 4, 3, 2, 1];\n * ArrayExt.findFirstIndex(data, isEven); // 1\n * ArrayExt.findFirstIndex(data, isEven, 4); // 5\n * ArrayExt.findFirstIndex(data, isEven, 6); // -1\n * ArrayExt.findFirstIndex(data, isEven, 6, 5); // 1\n * ```\n */\n function findFirstIndex(array, fn, start = 0, stop = -1) {\n let n = array.length;\n if (n === 0) {\n return -1;\n }\n if (start < 0) {\n start = Math.max(0, start + n);\n }\n else {\n start = Math.min(start, n - 1);\n }\n if (stop < 0) {\n stop = Math.max(0, stop + n);\n }\n else {\n stop = Math.min(stop, n - 1);\n }\n let span;\n if (stop < start) {\n span = stop + 1 + (n - start);\n }\n else {\n span = stop - start + 1;\n }\n for (let i = 0; i < span; ++i) {\n let j = (start + i) % n;\n if (fn(array[j], j)) {\n return j;\n }\n }\n return -1;\n }\n ArrayExt.findFirstIndex = findFirstIndex;\n /**\n * Find the index of the last value which matches a predicate.\n *\n * @param object - The array-like object to search.\n *\n * @param fn - The predicate function to apply to the values.\n *\n * @param start - The index of the first element in the range to be\n * searched, inclusive. The default value is `-1`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @param stop - The index of the last element in the range to be\n * searched, inclusive. The default value is `0`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @returns The index of the last matching value, or `-1` if no\n * matching value is found.\n *\n * #### Notes\n * If `start < stop` the search will wrap at the front of the array.\n *\n * #### Complexity\n * Linear.\n *\n * #### Undefined Behavior\n * A `start` or `stop` which is non-integral.\n *\n * Modifying the length of the array while searching.\n *\n * #### Example\n * ```typescript\n * import { ArrayExt } from '@lumino/algorithm';\n *\n * function isEven(value: number): boolean {\n * return value % 2 === 0;\n * }\n *\n * let data = [1, 2, 3, 4, 3, 2, 1];\n * ArrayExt.findLastIndex(data, isEven); // 5\n * ArrayExt.findLastIndex(data, isEven, 4); // 3\n * ArrayExt.findLastIndex(data, isEven, 0); // -1\n * ArrayExt.findLastIndex(data, isEven, 0, 1); // 5\n * ```\n */\n function findLastIndex(array, fn, start = -1, stop = 0) {\n let n = array.length;\n if (n === 0) {\n return -1;\n }\n if (start < 0) {\n start = Math.max(0, start + n);\n }\n else {\n start = Math.min(start, n - 1);\n }\n if (stop < 0) {\n stop = Math.max(0, stop + n);\n }\n else {\n stop = Math.min(stop, n - 1);\n }\n let d;\n if (start < stop) {\n d = start + 1 + (n - stop);\n }\n else {\n d = start - stop + 1;\n }\n for (let i = 0; i < d; ++i) {\n let j = (start - i + n) % n;\n if (fn(array[j], j)) {\n return j;\n }\n }\n return -1;\n }\n ArrayExt.findLastIndex = findLastIndex;\n /**\n * Find the first value which matches a predicate.\n *\n * @param array - The array-like object to search.\n *\n * @param fn - The predicate function to apply to the values.\n *\n * @param start - The index of the first element in the range to be\n * searched, inclusive. The default value is `0`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @param stop - The index of the last element in the range to be\n * searched, inclusive. The default value is `-1`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @returns The first matching value, or `undefined` if no matching\n * value is found.\n *\n * #### Notes\n * If `stop < start` the search will wrap at the end of the array.\n *\n * #### Complexity\n * Linear.\n *\n * #### Undefined Behavior\n * A `start` or `stop` which is non-integral.\n *\n * Modifying the length of the array while searching.\n *\n * #### Example\n * ```typescript\n * import { ArrayExt } from '@lumino/algorithm';\n *\n * function isEven(value: number): boolean {\n * return value % 2 === 0;\n * }\n *\n * let data = [1, 2, 3, 4, 3, 2, 1];\n * ArrayExt.findFirstValue(data, isEven); // 2\n * ArrayExt.findFirstValue(data, isEven, 2); // 4\n * ArrayExt.findFirstValue(data, isEven, 6); // undefined\n * ArrayExt.findFirstValue(data, isEven, 6, 5); // 2\n * ```\n */\n function findFirstValue(array, fn, start = 0, stop = -1) {\n let index = findFirstIndex(array, fn, start, stop);\n return index !== -1 ? array[index] : undefined;\n }\n ArrayExt.findFirstValue = findFirstValue;\n /**\n * Find the last value which matches a predicate.\n *\n * @param object - The array-like object to search.\n *\n * @param fn - The predicate function to apply to the values.\n *\n * @param start - The index of the first element in the range to be\n * searched, inclusive. The default value is `-1`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @param stop - The index of the last element in the range to be\n * searched, inclusive. The default value is `0`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @returns The last matching value, or `undefined` if no matching\n * value is found.\n *\n * #### Notes\n * If `start < stop` the search will wrap at the front of the array.\n *\n * #### Complexity\n * Linear.\n *\n * #### Undefined Behavior\n * A `start` or `stop` which is non-integral.\n *\n * Modifying the length of the array while searching.\n *\n * #### Example\n * ```typescript\n * import { ArrayExt } from '@lumino/algorithm';\n *\n * function isEven(value: number): boolean {\n * return value % 2 === 0;\n * }\n *\n * let data = [1, 2, 3, 4, 3, 2, 1];\n * ArrayExt.findLastValue(data, isEven); // 2\n * ArrayExt.findLastValue(data, isEven, 4); // 4\n * ArrayExt.findLastValue(data, isEven, 0); // undefined\n * ArrayExt.findLastValue(data, isEven, 0, 1); // 2\n * ```\n */\n function findLastValue(array, fn, start = -1, stop = 0) {\n let index = findLastIndex(array, fn, start, stop);\n return index !== -1 ? array[index] : undefined;\n }\n ArrayExt.findLastValue = findLastValue;\n /**\n * Find the index of the first element which compares `>=` to a value.\n *\n * @param array - The sorted array-like object to search.\n *\n * @param value - The value to locate in the array.\n *\n * @param fn - The 3-way comparison function to apply to the values.\n * It should return `< 0` if an element is less than a value, `0` if\n * an element is equal to a value, or `> 0` if an element is greater\n * than a value.\n *\n * @param start - The index of the first element in the range to be\n * searched, inclusive. The default value is `0`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @param stop - The index of the last element in the range to be\n * searched, inclusive. The default value is `-1`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @returns The index of the first element which compares `>=` to the\n * value, or `length` if there is no such element. If the computed\n * index for `stop` is less than `start`, then the computed index\n * for `start` is returned.\n *\n * #### Notes\n * The array must already be sorted in ascending order according to\n * the comparison function.\n *\n * #### Complexity\n * Logarithmic.\n *\n * #### Undefined Behavior\n * Searching a range which is not sorted in ascending order.\n *\n * A `start` or `stop` which is non-integral.\n *\n * Modifying the length of the array while searching.\n *\n * #### Example\n * ```typescript\n * import { ArrayExt } from '@lumino/algorithm';\n *\n * function numberCmp(a: number, b: number): number {\n * return a - b;\n * }\n *\n * let data = [0, 3, 4, 7, 7, 9];\n * ArrayExt.lowerBound(data, 0, numberCmp); // 0\n * ArrayExt.lowerBound(data, 6, numberCmp); // 3\n * ArrayExt.lowerBound(data, 7, numberCmp); // 3\n * ArrayExt.lowerBound(data, -1, numberCmp); // 0\n * ArrayExt.lowerBound(data, 10, numberCmp); // 6\n * ```\n */\n function lowerBound(array, value, fn, start = 0, stop = -1) {\n let n = array.length;\n if (n === 0) {\n return 0;\n }\n if (start < 0) {\n start = Math.max(0, start + n);\n }\n else {\n start = Math.min(start, n - 1);\n }\n if (stop < 0) {\n stop = Math.max(0, stop + n);\n }\n else {\n stop = Math.min(stop, n - 1);\n }\n let begin = start;\n let span = stop - start + 1;\n while (span > 0) {\n let half = span >> 1;\n let middle = begin + half;\n if (fn(array[middle], value) < 0) {\n begin = middle + 1;\n span -= half + 1;\n }\n else {\n span = half;\n }\n }\n return begin;\n }\n ArrayExt.lowerBound = lowerBound;\n /**\n * Find the index of the first element which compares `>` than a value.\n *\n * @param array - The sorted array-like object to search.\n *\n * @param value - The value to locate in the array.\n *\n * @param fn - The 3-way comparison function to apply to the values.\n * It should return `< 0` if an element is less than a value, `0` if\n * an element is equal to a value, or `> 0` if an element is greater\n * than a value.\n *\n * @param start - The index of the first element in the range to be\n * searched, inclusive. The default value is `0`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @param stop - The index of the last element in the range to be\n * searched, inclusive. The default value is `-1`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @returns The index of the first element which compares `>` than the\n * value, or `length` if there is no such element. If the computed\n * index for `stop` is less than `start`, then the computed index\n * for `start` is returned.\n *\n * #### Notes\n * The array must already be sorted in ascending order according to\n * the comparison function.\n *\n * #### Complexity\n * Logarithmic.\n *\n * #### Undefined Behavior\n * Searching a range which is not sorted in ascending order.\n *\n * A `start` or `stop` which is non-integral.\n *\n * Modifying the length of the array while searching.\n *\n * #### Example\n * ```typescript\n * import { ArrayExt } from '@lumino/algorithm';\n *\n * function numberCmp(a: number, b: number): number {\n * return a - b;\n * }\n *\n * let data = [0, 3, 4, 7, 7, 9];\n * ArrayExt.upperBound(data, 0, numberCmp); // 1\n * ArrayExt.upperBound(data, 6, numberCmp); // 3\n * ArrayExt.upperBound(data, 7, numberCmp); // 5\n * ArrayExt.upperBound(data, -1, numberCmp); // 0\n * ArrayExt.upperBound(data, 10, numberCmp); // 6\n * ```\n */\n function upperBound(array, value, fn, start = 0, stop = -1) {\n let n = array.length;\n if (n === 0) {\n return 0;\n }\n if (start < 0) {\n start = Math.max(0, start + n);\n }\n else {\n start = Math.min(start, n - 1);\n }\n if (stop < 0) {\n stop = Math.max(0, stop + n);\n }\n else {\n stop = Math.min(stop, n - 1);\n }\n let begin = start;\n let span = stop - start + 1;\n while (span > 0) {\n let half = span >> 1;\n let middle = begin + half;\n if (fn(array[middle], value) > 0) {\n span = half;\n }\n else {\n begin = middle + 1;\n span -= half + 1;\n }\n }\n return begin;\n }\n ArrayExt.upperBound = upperBound;\n /**\n * Test whether two arrays are shallowly equal.\n *\n * @param a - The first array-like object to compare.\n *\n * @param b - The second array-like object to compare.\n *\n * @param fn - The comparison function to apply to the elements. It\n * should return `true` if the elements are \"equal\". The default\n * compares elements using strict `===` equality.\n *\n * @returns Whether the two arrays are shallowly equal.\n *\n * #### Complexity\n * Linear.\n *\n * #### Undefined Behavior\n * Modifying the length of the arrays while comparing.\n *\n * #### Example\n * ```typescript\n * import { ArrayExt } from '@lumino/algorithm';\n *\n * let d1 = [0, 3, 4, 7, 7, 9];\n * let d2 = [0, 3, 4, 7, 7, 9];\n * let d3 = [42];\n * ArrayExt.shallowEqual(d1, d2); // true\n * ArrayExt.shallowEqual(d2, d3); // false\n * ```\n */\n function shallowEqual(a, b, fn) {\n // Check for object identity first.\n if (a === b) {\n return true;\n }\n // Bail early if the lengths are different.\n if (a.length !== b.length) {\n return false;\n }\n // Compare each element for equality.\n for (let i = 0, n = a.length; i < n; ++i) {\n if (fn ? !fn(a[i], b[i]) : a[i] !== b[i]) {\n return false;\n }\n }\n // The array are shallowly equal.\n return true;\n }\n ArrayExt.shallowEqual = shallowEqual;\n /**\n * Create a slice of an array subject to an optional step.\n *\n * @param array - The array-like object of interest.\n *\n * @param options - The options for configuring the slice.\n *\n * @returns A new array with the specified values.\n *\n * @throws An exception if the slice `step` is `0`.\n *\n * #### Complexity\n * Linear.\n *\n * #### Undefined Behavior\n * A `start`, `stop`, or `step` which is non-integral.\n *\n * #### Example\n * ```typescript\n * import { ArrayExt } from '@lumino/algorithm';\n *\n * let data = [0, 3, 4, 7, 7, 9];\n * ArrayExt.slice(data); // [0, 3, 4, 7, 7, 9]\n * ArrayExt.slice(data, { start: 2 }); // [4, 7, 7, 9]\n * ArrayExt.slice(data, { start: 0, stop: 4 }); // [0, 3, 4, 7]\n * ArrayExt.slice(data, { step: 2 }); // [0, 4, 7]\n * ArrayExt.slice(data, { step: -1 }); // [9, 7, 7, 4, 3, 0]\n * ```\n */\n function slice(array, options = {}) {\n // Extract the options.\n let { start, stop, step } = options;\n // Set up the `step` value.\n if (step === undefined) {\n step = 1;\n }\n // Validate the step size.\n if (step === 0) {\n throw new Error('Slice `step` cannot be zero.');\n }\n // Look up the length of the array.\n let n = array.length;\n // Set up the `start` value.\n if (start === undefined) {\n start = step < 0 ? n - 1 : 0;\n }\n else if (start < 0) {\n start = Math.max(start + n, step < 0 ? -1 : 0);\n }\n else if (start >= n) {\n start = step < 0 ? n - 1 : n;\n }\n // Set up the `stop` value.\n if (stop === undefined) {\n stop = step < 0 ? -1 : n;\n }\n else if (stop < 0) {\n stop = Math.max(stop + n, step < 0 ? -1 : 0);\n }\n else if (stop >= n) {\n stop = step < 0 ? n - 1 : n;\n }\n // Compute the slice length.\n let length;\n if ((step < 0 && stop >= start) || (step > 0 && start >= stop)) {\n length = 0;\n }\n else if (step < 0) {\n length = Math.floor((stop - start + 1) / step + 1);\n }\n else {\n length = Math.floor((stop - start - 1) / step + 1);\n }\n // Compute the sliced result.\n let result = [];\n for (let i = 0; i < length; ++i) {\n result[i] = array[start + i * step];\n }\n // Return the result.\n return result;\n }\n ArrayExt.slice = slice;\n /**\n * Move an element in an array from one index to another.\n *\n * @param array - The mutable array-like object of interest.\n *\n * @param fromIndex - The index of the element to move. Negative\n * values are taken as an offset from the end of the array.\n *\n * @param toIndex - The target index of the element. Negative\n * values are taken as an offset from the end of the array.\n *\n * #### Complexity\n * Linear.\n *\n * #### Undefined Behavior\n * A `fromIndex` or `toIndex` which is non-integral.\n *\n * #### Example\n * ```typescript\n * import { ArrayExt } from from '@lumino/algorithm';\n *\n * let data = [0, 1, 2, 3, 4];\n * ArrayExt.move(data, 1, 2); // [0, 2, 1, 3, 4]\n * ArrayExt.move(data, 4, 2); // [0, 2, 4, 1, 3]\n * ```\n */\n function move(array, fromIndex, toIndex) {\n let n = array.length;\n if (n <= 1) {\n return;\n }\n if (fromIndex < 0) {\n fromIndex = Math.max(0, fromIndex + n);\n }\n else {\n fromIndex = Math.min(fromIndex, n - 1);\n }\n if (toIndex < 0) {\n toIndex = Math.max(0, toIndex + n);\n }\n else {\n toIndex = Math.min(toIndex, n - 1);\n }\n if (fromIndex === toIndex) {\n return;\n }\n let value = array[fromIndex];\n let d = fromIndex < toIndex ? 1 : -1;\n for (let i = fromIndex; i !== toIndex; i += d) {\n array[i] = array[i + d];\n }\n array[toIndex] = value;\n }\n ArrayExt.move = move;\n /**\n * Reverse an array in-place.\n *\n * @param array - The mutable array-like object of interest.\n *\n * @param start - The index of the first element in the range to be\n * reversed, inclusive. The default value is `0`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @param stop - The index of the last element in the range to be\n * reversed, inclusive. The default value is `-1`. Negative values\n * are taken as an offset from the end of the array.\n *\n * #### Complexity\n * Linear.\n *\n * #### Undefined Behavior\n * A `start` or `stop` index which is non-integral.\n *\n * #### Example\n * ```typescript\n * import { ArrayExt } from '@lumino/algorithm';\n *\n * let data = [0, 1, 2, 3, 4];\n * ArrayExt.reverse(data, 1, 3); // [0, 3, 2, 1, 4]\n * ArrayExt.reverse(data, 3); // [0, 3, 2, 4, 1]\n * ArrayExt.reverse(data); // [1, 4, 2, 3, 0]\n * ```\n */\n function reverse(array, start = 0, stop = -1) {\n let n = array.length;\n if (n <= 1) {\n return;\n }\n if (start < 0) {\n start = Math.max(0, start + n);\n }\n else {\n start = Math.min(start, n - 1);\n }\n if (stop < 0) {\n stop = Math.max(0, stop + n);\n }\n else {\n stop = Math.min(stop, n - 1);\n }\n while (start < stop) {\n let a = array[start];\n let b = array[stop];\n array[start++] = b;\n array[stop--] = a;\n }\n }\n ArrayExt.reverse = reverse;\n /**\n * Rotate the elements of an array in-place.\n *\n * @param array - The mutable array-like object of interest.\n *\n * @param delta - The amount of rotation to apply to the elements. A\n * positive value will rotate the elements to the left. A negative\n * value will rotate the elements to the right.\n *\n * @param start - The index of the first element in the range to be\n * rotated, inclusive. The default value is `0`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @param stop - The index of the last element in the range to be\n * rotated, inclusive. The default value is `-1`. Negative values\n * are taken as an offset from the end of the array.\n *\n * #### Complexity\n * Linear.\n *\n * #### Undefined Behavior\n * A `delta`, `start`, or `stop` which is non-integral.\n *\n * #### Example\n * ```typescript\n * import { ArrayExt } from '@lumino/algorithm';\n *\n * let data = [0, 1, 2, 3, 4];\n * ArrayExt.rotate(data, 2); // [2, 3, 4, 0, 1]\n * ArrayExt.rotate(data, -2); // [0, 1, 2, 3, 4]\n * ArrayExt.rotate(data, 10); // [0, 1, 2, 3, 4]\n * ArrayExt.rotate(data, 9); // [4, 0, 1, 2, 3]\n * ArrayExt.rotate(data, 2, 1, 3); // [4, 2, 0, 1, 3]\n * ```\n */\n function rotate(array, delta, start = 0, stop = -1) {\n let n = array.length;\n if (n <= 1) {\n return;\n }\n if (start < 0) {\n start = Math.max(0, start + n);\n }\n else {\n start = Math.min(start, n - 1);\n }\n if (stop < 0) {\n stop = Math.max(0, stop + n);\n }\n else {\n stop = Math.min(stop, n - 1);\n }\n if (start >= stop) {\n return;\n }\n let length = stop - start + 1;\n if (delta > 0) {\n delta = delta % length;\n }\n else if (delta < 0) {\n delta = ((delta % length) + length) % length;\n }\n if (delta === 0) {\n return;\n }\n let pivot = start + delta;\n reverse(array, start, pivot - 1);\n reverse(array, pivot, stop);\n reverse(array, start, stop);\n }\n ArrayExt.rotate = rotate;\n /**\n * Fill an array with a static value.\n *\n * @param array - The mutable array-like object to fill.\n *\n * @param value - The static value to use to fill the array.\n *\n * @param start - The index of the first element in the range to be\n * filled, inclusive. The default value is `0`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @param stop - The index of the last element in the range to be\n * filled, inclusive. The default value is `-1`. Negative values\n * are taken as an offset from the end of the array.\n *\n * #### Notes\n * If `stop < start` the fill will wrap at the end of the array.\n *\n * #### Complexity\n * Linear.\n *\n * #### Undefined Behavior\n * A `start` or `stop` which is non-integral.\n *\n * #### Example\n * ```typescript\n * import { ArrayExt } from '@lumino/algorithm';\n *\n * let data = ['one', 'two', 'three', 'four'];\n * ArrayExt.fill(data, 'r'); // ['r', 'r', 'r', 'r']\n * ArrayExt.fill(data, 'g', 1); // ['r', 'g', 'g', 'g']\n * ArrayExt.fill(data, 'b', 2, 3); // ['r', 'g', 'b', 'b']\n * ArrayExt.fill(data, 'z', 3, 1); // ['z', 'z', 'b', 'z']\n * ```\n */\n function fill(array, value, start = 0, stop = -1) {\n let n = array.length;\n if (n === 0) {\n return;\n }\n if (start < 0) {\n start = Math.max(0, start + n);\n }\n else {\n start = Math.min(start, n - 1);\n }\n if (stop < 0) {\n stop = Math.max(0, stop + n);\n }\n else {\n stop = Math.min(stop, n - 1);\n }\n let span;\n if (stop < start) {\n span = stop + 1 + (n - start);\n }\n else {\n span = stop - start + 1;\n }\n for (let i = 0; i < span; ++i) {\n array[(start + i) % n] = value;\n }\n }\n ArrayExt.fill = fill;\n /**\n * Insert a value into an array at a specific index.\n *\n * @param array - The array of interest.\n *\n * @param index - The index at which to insert the value. Negative\n * values are taken as an offset from the end of the array.\n *\n * @param value - The value to set at the specified index.\n *\n * #### Complexity\n * Linear.\n *\n * #### Undefined Behavior\n * An `index` which is non-integral.\n *\n * #### Example\n * ```typescript\n * import { ArrayExt } from '@lumino/algorithm';\n *\n * let data = [0, 1, 2];\n * ArrayExt.insert(data, 0, -1); // [-1, 0, 1, 2]\n * ArrayExt.insert(data, 2, 12); // [-1, 0, 12, 1, 2]\n * ArrayExt.insert(data, -1, 7); // [-1, 0, 12, 1, 7, 2]\n * ArrayExt.insert(data, 6, 19); // [-1, 0, 12, 1, 7, 2, 19]\n * ```\n */\n function insert(array, index, value) {\n let n = array.length;\n if (index < 0) {\n index = Math.max(0, index + n);\n }\n else {\n index = Math.min(index, n);\n }\n for (let i = n; i > index; --i) {\n array[i] = array[i - 1];\n }\n array[index] = value;\n }\n ArrayExt.insert = insert;\n /**\n * Remove and return a value at a specific index in an array.\n *\n * @param array - The array of interest.\n *\n * @param index - The index of the value to remove. Negative values\n * are taken as an offset from the end of the array.\n *\n * @returns The value at the specified index, or `undefined` if the\n * index is out of range.\n *\n * #### Complexity\n * Linear.\n *\n * #### Undefined Behavior\n * An `index` which is non-integral.\n *\n * #### Example\n * ```typescript\n * import { ArrayExt } from '@lumino/algorithm';\n *\n * let data = [0, 12, 23, 39, 14, 12, 75];\n * ArrayExt.removeAt(data, 2); // 23\n * ArrayExt.removeAt(data, -2); // 12\n * ArrayExt.removeAt(data, 10); // undefined;\n * ```\n */\n function removeAt(array, index) {\n let n = array.length;\n if (index < 0) {\n index += n;\n }\n if (index < 0 || index >= n) {\n return undefined;\n }\n let value = array[index];\n for (let i = index + 1; i < n; ++i) {\n array[i - 1] = array[i];\n }\n array.length = n - 1;\n return value;\n }\n ArrayExt.removeAt = removeAt;\n /**\n * Remove the first occurrence of a value from an array.\n *\n * @param array - The array of interest.\n *\n * @param value - The value to remove from the array. Values are\n * compared using strict `===` equality.\n *\n * @param start - The index of the first element in the range to be\n * searched, inclusive. The default value is `0`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @param stop - The index of the last element in the range to be\n * searched, inclusive. The default value is `-1`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @returns The index of the removed value, or `-1` if the value\n * is not contained in the array.\n *\n * #### Notes\n * If `stop < start` the search will wrap at the end of the array.\n *\n * #### Complexity\n * Linear.\n *\n * #### Example\n * ```typescript\n * import { ArrayExt } from '@lumino/algorithm';\n *\n * let data = [0, 12, 23, 39, 14, 12, 75];\n * ArrayExt.removeFirstOf(data, 12); // 1\n * ArrayExt.removeFirstOf(data, 17); // -1\n * ArrayExt.removeFirstOf(data, 39, 3); // -1\n * ArrayExt.removeFirstOf(data, 39, 3, 2); // 2\n * ```\n */\n function removeFirstOf(array, value, start = 0, stop = -1) {\n let index = firstIndexOf(array, value, start, stop);\n if (index !== -1) {\n removeAt(array, index);\n }\n return index;\n }\n ArrayExt.removeFirstOf = removeFirstOf;\n /**\n * Remove the last occurrence of a value from an array.\n *\n * @param array - The array of interest.\n *\n * @param value - The value to remove from the array. Values are\n * compared using strict `===` equality.\n *\n * @param start - The index of the first element in the range to be\n * searched, inclusive. The default value is `-1`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @param stop - The index of the last element in the range to be\n * searched, inclusive. The default value is `0`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @returns The index of the removed value, or `-1` if the value\n * is not contained in the array.\n *\n * #### Notes\n * If `start < stop` the search will wrap at the end of the array.\n *\n * #### Complexity\n * Linear.\n *\n * #### Example\n * ```typescript\n * import { ArrayExt } from '@lumino/algorithm';\n *\n * let data = [0, 12, 23, 39, 14, 12, 75];\n * ArrayExt.removeLastOf(data, 12); // 5\n * ArrayExt.removeLastOf(data, 17); // -1\n * ArrayExt.removeLastOf(data, 39, 2); // -1\n * ArrayExt.removeLastOf(data, 39, 2, 3); // 3\n * ```\n */\n function removeLastOf(array, value, start = -1, stop = 0) {\n let index = lastIndexOf(array, value, start, stop);\n if (index !== -1) {\n removeAt(array, index);\n }\n return index;\n }\n ArrayExt.removeLastOf = removeLastOf;\n /**\n * Remove all occurrences of a value from an array.\n *\n * @param array - The array of interest.\n *\n * @param value - The value to remove from the array. Values are\n * compared using strict `===` equality.\n *\n * @param start - The index of the first element in the range to be\n * searched, inclusive. The default value is `0`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @param stop - The index of the last element in the range to be\n * searched, inclusive. The default value is `-1`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @returns The number of elements removed from the array.\n *\n * #### Notes\n * If `stop < start` the search will conceptually wrap at the end of\n * the array, however the array will be traversed front-to-back.\n *\n * #### Complexity\n * Linear.\n *\n * #### Example\n * ```typescript\n * import { ArrayExt } from '@lumino/algorithm';\n *\n * let data = [14, 12, 23, 39, 14, 12, 19, 14];\n * ArrayExt.removeAllOf(data, 12); // 2\n * ArrayExt.removeAllOf(data, 17); // 0\n * ArrayExt.removeAllOf(data, 14, 1, 4); // 1\n * ```\n */\n function removeAllOf(array, value, start = 0, stop = -1) {\n let n = array.length;\n if (n === 0) {\n return 0;\n }\n if (start < 0) {\n start = Math.max(0, start + n);\n }\n else {\n start = Math.min(start, n - 1);\n }\n if (stop < 0) {\n stop = Math.max(0, stop + n);\n }\n else {\n stop = Math.min(stop, n - 1);\n }\n let count = 0;\n for (let i = 0; i < n; ++i) {\n if (start <= stop && i >= start && i <= stop && array[i] === value) {\n count++;\n }\n else if (stop < start &&\n (i <= stop || i >= start) &&\n array[i] === value) {\n count++;\n }\n else if (count > 0) {\n array[i - count] = array[i];\n }\n }\n if (count > 0) {\n array.length = n - count;\n }\n return count;\n }\n ArrayExt.removeAllOf = removeAllOf;\n /**\n * Remove the first occurrence of a value which matches a predicate.\n *\n * @param array - The array of interest.\n *\n * @param fn - The predicate function to apply to the values.\n *\n * @param start - The index of the first element in the range to be\n * searched, inclusive. The default value is `0`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @param stop - The index of the last element in the range to be\n * searched, inclusive. The default value is `-1`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @returns The removed `{ index, value }`, which will be `-1` and\n * `undefined` if the value is not contained in the array.\n *\n * #### Notes\n * If `stop < start` the search will wrap at the end of the array.\n *\n * #### Complexity\n * Linear.\n *\n * #### Example\n * ```typescript\n * import { ArrayExt } from '@lumino/algorithm';\n *\n * function isEven(value: number): boolean {\n * return value % 2 === 0;\n * }\n *\n * let data = [0, 12, 23, 39, 14, 12, 75];\n * ArrayExt.removeFirstWhere(data, isEven); // { index: 0, value: 0 }\n * ArrayExt.removeFirstWhere(data, isEven, 2); // { index: 3, value: 14 }\n * ArrayExt.removeFirstWhere(data, isEven, 4); // { index: -1, value: undefined }\n * ```\n */\n function removeFirstWhere(array, fn, start = 0, stop = -1) {\n let value;\n let index = findFirstIndex(array, fn, start, stop);\n if (index !== -1) {\n value = removeAt(array, index);\n }\n return { index, value };\n }\n ArrayExt.removeFirstWhere = removeFirstWhere;\n /**\n * Remove the last occurrence of a value which matches a predicate.\n *\n * @param array - The array of interest.\n *\n * @param fn - The predicate function to apply to the values.\n *\n * @param start - The index of the first element in the range to be\n * searched, inclusive. The default value is `-1`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @param stop - The index of the last element in the range to be\n * searched, inclusive. The default value is `0`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @returns The removed `{ index, value }`, which will be `-1` and\n * `undefined` if the value is not contained in the array.\n *\n * #### Notes\n * If `start < stop` the search will wrap at the end of the array.\n *\n * #### Complexity\n * Linear.\n *\n * #### Example\n * ```typescript\n * import { ArrayExt } from '@lumino/algorithm';\n *\n * function isEven(value: number): boolean {\n * return value % 2 === 0;\n * }\n *\n * let data = [0, 12, 23, 39, 14, 12, 75];\n * ArrayExt.removeLastWhere(data, isEven); // { index: 5, value: 12 }\n * ArrayExt.removeLastWhere(data, isEven, 2); // { index: 1, value: 12 }\n * ArrayExt.removeLastWhere(data, isEven, 2, 1); // { index: -1, value: undefined }\n * ```\n */\n function removeLastWhere(array, fn, start = -1, stop = 0) {\n let value;\n let index = findLastIndex(array, fn, start, stop);\n if (index !== -1) {\n value = removeAt(array, index);\n }\n return { index, value };\n }\n ArrayExt.removeLastWhere = removeLastWhere;\n /**\n * Remove all occurrences of values which match a predicate.\n *\n * @param array - The array of interest.\n *\n * @param fn - The predicate function to apply to the values.\n *\n * @param start - The index of the first element in the range to be\n * searched, inclusive. The default value is `0`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @param stop - The index of the last element in the range to be\n * searched, inclusive. The default value is `-1`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @returns The number of elements removed from the array.\n *\n * #### Notes\n * If `stop < start` the search will conceptually wrap at the end of\n * the array, however the array will be traversed front-to-back.\n *\n * #### Complexity\n * Linear.\n *\n * #### Example\n * ```typescript\n * import { ArrayExt } from '@lumino/algorithm';\n *\n * function isEven(value: number): boolean {\n * return value % 2 === 0;\n * }\n *\n * function isNegative(value: number): boolean {\n * return value < 0;\n * }\n *\n * let data = [0, 12, -13, -9, 23, 39, 14, -15, 12, 75];\n * ArrayExt.removeAllWhere(data, isEven); // 4\n * ArrayExt.removeAllWhere(data, isNegative, 0, 3); // 2\n * ```\n */\n function removeAllWhere(array, fn, start = 0, stop = -1) {\n let n = array.length;\n if (n === 0) {\n return 0;\n }\n if (start < 0) {\n start = Math.max(0, start + n);\n }\n else {\n start = Math.min(start, n - 1);\n }\n if (stop < 0) {\n stop = Math.max(0, stop + n);\n }\n else {\n stop = Math.min(stop, n - 1);\n }\n let count = 0;\n for (let i = 0; i < n; ++i) {\n if (start <= stop && i >= start && i <= stop && fn(array[i], i)) {\n count++;\n }\n else if (stop < start && (i <= stop || i >= start) && fn(array[i], i)) {\n count++;\n }\n else if (count > 0) {\n array[i - count] = array[i];\n }\n }\n if (count > 0) {\n array.length = n - count;\n }\n return count;\n }\n ArrayExt.removeAllWhere = removeAllWhere;\n})(ArrayExt || (ArrayExt = {}));\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * Chain together several iterables.\n *\n * @deprecated\n *\n * @param objects - The iterable objects of interest.\n *\n * @returns An iterator which yields the values of the iterables\n * in the order in which they are supplied.\n *\n * #### Example\n * ```typescript\n * import { chain } from '@lumino/algorithm';\n *\n * let data1 = [1, 2, 3];\n * let data2 = [4, 5, 6];\n *\n * let stream = chain(data1, data2);\n *\n * Array.from(stream); // [1, 2, 3, 4, 5, 6]\n * ```\n */\nfunction* chain(...objects) {\n for (const object of objects) {\n yield* object;\n }\n}\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * Create an empty iterator.\n *\n * @returns A new iterator which yields nothing.\n *\n * #### Example\n * ```typescript\n * import { empty } from '@lumino/algorithm';\n *\n * let stream = empty();\n *\n * Array.from(stream); // []\n * ```\n */\n// eslint-disable-next-line require-yield\nfunction* empty() {\n return;\n}\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * Enumerate an iterable object.\n *\n * @param object - The iterable object of interest.\n *\n * @param start - The starting enum value. The default is `0`.\n *\n * @returns An iterator which yields the enumerated values.\n *\n * #### Example\n * ```typescript\n * import { enumerate } from '@lumino/algorithm';\n *\n * let data = ['foo', 'bar', 'baz'];\n *\n * let stream = enumerate(data, 1);\n *\n * Array.from(stream); // [[1, 'foo'], [2, 'bar'], [3, 'baz']]\n * ```\n */\nfunction* enumerate(object, start = 0) {\n for (const value of object) {\n yield [start++, value];\n }\n}\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * Filter an iterable for values which pass a test.\n *\n * @param object - The iterable object of interest.\n *\n * @param fn - The predicate function to invoke for each value.\n *\n * @returns An iterator which yields the values which pass the test.\n *\n * #### Example\n * ```typescript\n * import { filter } from '@lumino/algorithm';\n *\n * let data = [1, 2, 3, 4, 5, 6];\n *\n * let stream = filter(data, value => value % 2 === 0);\n *\n * Array.from(stream); // [2, 4, 6]\n * ```\n */\nfunction* filter(object, fn) {\n let index = 0;\n for (const value of object) {\n if (fn(value, index++)) {\n yield value;\n }\n }\n}\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * Find the first value in an iterable which matches a predicate.\n *\n * @param object - The iterable object to search.\n *\n * @param fn - The predicate function to apply to the values.\n *\n * @returns The first matching value, or `undefined` if no matching\n * value is found.\n *\n * #### Complexity\n * Linear.\n *\n * #### Example\n * ```typescript\n * import { find } from '@lumino/algorithm';\n *\n * interface IAnimal { species: string, name: string };\n *\n * function isCat(value: IAnimal): boolean {\n * return value.species === 'cat';\n * }\n *\n * let data: IAnimal[] = [\n * { species: 'dog', name: 'spot' },\n * { species: 'cat', name: 'fluffy' },\n * { species: 'alligator', name: 'pocho' }\n * ];\n *\n * find(data, isCat).name; // 'fluffy'\n * ```\n */\nfunction find(object, fn) {\n let index = 0;\n for (const value of object) {\n if (fn(value, index++)) {\n return value;\n }\n }\n return undefined;\n}\n/**\n * Find the index of the first value which matches a predicate.\n *\n * @param object - The iterable object to search.\n *\n * @param fn - The predicate function to apply to the values.\n *\n * @returns The index of the first matching value, or `-1` if no\n * matching value is found.\n *\n * #### Complexity\n * Linear.\n *\n * #### Example\n * ```typescript\n * import { findIndex } from '@lumino/algorithm';\n *\n * interface IAnimal { species: string, name: string };\n *\n * function isCat(value: IAnimal): boolean {\n * return value.species === 'cat';\n * }\n *\n * let data: IAnimal[] = [\n * { species: 'dog', name: 'spot' },\n * { species: 'cat', name: 'fluffy' },\n * { species: 'alligator', name: 'pocho' }\n * ];\n *\n * findIndex(data, isCat); // 1\n * ```\n */\nfunction findIndex(object, fn) {\n let index = 0;\n for (const value of object) {\n if (fn(value, index++)) {\n return index - 1;\n }\n }\n return -1;\n}\n/**\n * Find the minimum value in an iterable.\n *\n * @param object - The iterable object to search.\n *\n * @param fn - The 3-way comparison function to apply to the values.\n * It should return `< 0` if the first value is less than the second.\n * `0` if the values are equivalent, or `> 0` if the first value is\n * greater than the second.\n *\n * @returns The minimum value in the iterable. If multiple values are\n * equivalent to the minimum, the left-most value is returned. If\n * the iterable is empty, this returns `undefined`.\n *\n * #### Complexity\n * Linear.\n *\n * #### Example\n * ```typescript\n * import { min } from '@lumino/algorithm';\n *\n * function numberCmp(a: number, b: number): number {\n * return a - b;\n * }\n *\n * min([7, 4, 0, 3, 9, 4], numberCmp); // 0\n * ```\n */\nfunction min(object, fn) {\n let result = undefined;\n for (const value of object) {\n if (result === undefined) {\n result = value;\n continue;\n }\n if (fn(value, result) < 0) {\n result = value;\n }\n }\n return result;\n}\n/**\n * Find the maximum value in an iterable.\n *\n * @param object - The iterable object to search.\n *\n * @param fn - The 3-way comparison function to apply to the values.\n * It should return `< 0` if the first value is less than the second.\n * `0` if the values are equivalent, or `> 0` if the first value is\n * greater than the second.\n *\n * @returns The maximum value in the iterable. If multiple values are\n * equivalent to the maximum, the left-most value is returned. If\n * the iterable is empty, this returns `undefined`.\n *\n * #### Complexity\n * Linear.\n *\n * #### Example\n * ```typescript\n * import { max } from '@lumino/algorithm';\n *\n * function numberCmp(a: number, b: number): number {\n * return a - b;\n * }\n *\n * max([7, 4, 0, 3, 9, 4], numberCmp); // 9\n * ```\n */\nfunction max(object, fn) {\n let result = undefined;\n for (const value of object) {\n if (result === undefined) {\n result = value;\n continue;\n }\n if (fn(value, result) > 0) {\n result = value;\n }\n }\n return result;\n}\n/**\n * Find the minimum and maximum values in an iterable.\n *\n * @param object - The iterable object to search.\n *\n * @param fn - The 3-way comparison function to apply to the values.\n * It should return `< 0` if the first value is less than the second.\n * `0` if the values are equivalent, or `> 0` if the first value is\n * greater than the second.\n *\n * @returns A 2-tuple of the `[min, max]` values in the iterable. If\n * multiple values are equivalent, the left-most values are returned.\n * If the iterable is empty, this returns `undefined`.\n *\n * #### Complexity\n * Linear.\n *\n * #### Example\n * ```typescript\n * import { minmax } from '@lumino/algorithm';\n *\n * function numberCmp(a: number, b: number): number {\n * return a - b;\n * }\n *\n * minmax([7, 4, 0, 3, 9, 4], numberCmp); // [0, 9]\n * ```\n */\nfunction minmax(object, fn) {\n let empty = true;\n let vmin;\n let vmax;\n for (const value of object) {\n if (empty) {\n vmin = value;\n vmax = value;\n empty = false;\n }\n else if (fn(value, vmin) < 0) {\n vmin = value;\n }\n else if (fn(value, vmax) > 0) {\n vmax = value;\n }\n }\n return empty ? undefined : [vmin, vmax];\n}\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * Create an array from an iterable of values.\n *\n * @deprecated\n *\n * @param object - The iterable object of interest.\n *\n * @returns A new array of values from the given object.\n *\n * #### Example\n * ```typescript\n * import { toArray } from '@lumino/algorithm';\n *\n * let stream = [1, 2, 3, 4, 5, 6][Symbol.iterator]();\n *\n * toArray(stream); // [1, 2, 3, 4, 5, 6];\n * ```\n */\nfunction toArray(object) {\n return Array.from(object);\n}\n/**\n * Create an object from an iterable of key/value pairs.\n *\n * @param object - The iterable object of interest.\n *\n * @returns A new object mapping keys to values.\n *\n * #### Example\n * ```typescript\n * import { toObject } from '@lumino/algorithm';\n *\n * let data: [string, number][] = [['one', 1], ['two', 2], ['three', 3]];\n *\n * toObject(data); // { one: 1, two: 2, three: 3 }\n * ```\n */\nfunction toObject(object) {\n const result = {};\n for (const [key, value] of object) {\n result[key] = value;\n }\n return result;\n}\n/**\n * Invoke a function for each value in an iterable.\n *\n * @deprecated\n *\n * @param object - The iterable object of interest.\n *\n * @param fn - The callback function to invoke for each value.\n *\n * #### Notes\n * Iteration can be terminated early by returning `false` from the\n * callback function.\n *\n * #### Complexity\n * Linear.\n *\n * #### Example\n * ```typescript\n * import { each } from '@lumino/algorithm';\n *\n * let data = [5, 7, 0, -2, 9];\n *\n * each(data, value => { console.log(value); });\n * ```\n */\nfunction each(object, fn) {\n let index = 0;\n for (const value of object) {\n if (false === fn(value, index++)) {\n return;\n }\n }\n}\n/**\n * Test whether all values in an iterable satisfy a predicate.\n *\n * @param object - The iterable object of interest.\n *\n * @param fn - The predicate function to invoke for each value.\n *\n * @returns `true` if all values pass the test, `false` otherwise.\n *\n * #### Notes\n * Iteration terminates on the first `false` predicate result.\n *\n * #### Complexity\n * Linear.\n *\n * #### Example\n * ```typescript\n * import { every } from '@lumino/algorithm';\n *\n * let data = [5, 7, 1];\n *\n * every(data, value => value % 2 === 0); // false\n * every(data, value => value % 2 === 1); // true\n * ```\n */\nfunction every(object, fn) {\n let index = 0;\n for (const value of object) {\n if (false === fn(value, index++)) {\n return false;\n }\n }\n return true;\n}\n/**\n * Test whether any value in an iterable satisfies a predicate.\n *\n * @param object - The iterable object of interest.\n *\n * @param fn - The predicate function to invoke for each value.\n *\n * @returns `true` if any value passes the test, `false` otherwise.\n *\n * #### Notes\n * Iteration terminates on the first `true` predicate result.\n *\n * #### Complexity\n * Linear.\n *\n * #### Example\n * ```typescript\n * import { some } from '@lumino/algorithm';\n *\n * let data = [5, 7, 1];\n *\n * some(data, value => value === 7); // true\n * some(data, value => value === 3); // false\n * ```\n */\nfunction some(object, fn) {\n let index = 0;\n for (const value of object) {\n if (fn(value, index++)) {\n return true;\n }\n }\n return false;\n}\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * Transform the values of an iterable with a mapping function.\n *\n * @param object - The iterable object of interest.\n *\n * @param fn - The mapping function to invoke for each value.\n *\n * @returns An iterator which yields the transformed values.\n *\n * #### Example\n * ```typescript\n * import { map } from '@lumino/algorithm';\n *\n * let data = [1, 2, 3];\n *\n * let stream = map(data, value => value * 2);\n *\n * Array.from(stream); // [2, 4, 6]\n * ```\n */\nfunction* map(object, fn) {\n let index = 0;\n for (const value of object) {\n yield fn(value, index++);\n }\n}\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * Create an iterator of evenly spaced values.\n *\n * @param start - The starting value for the range, inclusive.\n *\n * @param stop - The stopping value for the range, exclusive.\n *\n * @param step - The distance between each value.\n *\n * @returns An iterator which produces evenly spaced values.\n *\n * #### Notes\n * In the single argument form of `range(stop)`, `start` defaults to\n * `0` and `step` defaults to `1`.\n *\n * In the two argument form of `range(start, stop)`, `step` defaults\n * to `1`.\n *\n * #### Example\n * ```typescript\n * import { range } from '@lumino/algorithm';\n *\n * let stream = range(2, 4);\n *\n * Array.from(stream); // [2, 3]\n * ```\n */\nfunction* range(start, stop, step) {\n if (stop === undefined) {\n stop = start;\n start = 0;\n step = 1;\n }\n else if (step === undefined) {\n step = 1;\n }\n const length = Private.rangeLength(start, stop, step);\n for (let index = 0; index < length; index++) {\n yield start + step * index;\n }\n}\n/**\n * The namespace for the module implementation details.\n */\nvar Private;\n(function (Private) {\n /**\n * Compute the effective length of a range.\n *\n * @param start - The starting value for the range, inclusive.\n *\n * @param stop - The stopping value for the range, exclusive.\n *\n * @param step - The distance between each value.\n *\n * @returns The number of steps need to traverse the range.\n */\n function rangeLength(start, stop, step) {\n if (step === 0) {\n return Infinity;\n }\n if (start > stop && step > 0) {\n return 0;\n }\n if (start < stop && step < 0) {\n return 0;\n }\n return Math.ceil((stop - start) / step);\n }\n Private.rangeLength = rangeLength;\n})(Private || (Private = {}));\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\nfunction reduce(object, fn, initial) {\n // Setup the iterator and fetch the first value.\n const it = object[Symbol.iterator]();\n let index = 0;\n let first = it.next();\n // An empty iterator and no initial value is an error.\n if (first.done && initial === undefined) {\n throw new TypeError('Reduce of empty iterable with no initial value.');\n }\n // If the iterator is empty, return the initial value.\n if (first.done) {\n return initial;\n }\n // If the iterator has a single item and no initial value, the\n // reducer is not invoked and the first item is the return value.\n let second = it.next();\n if (second.done && initial === undefined) {\n return first.value;\n }\n // If iterator has a single item and an initial value is provided,\n // the reducer is invoked and that result is the return value.\n if (second.done) {\n return fn(initial, first.value, index++);\n }\n // Setup the initial accumlated value.\n let accumulator;\n if (initial === undefined) {\n accumulator = fn(first.value, second.value, index++);\n }\n else {\n accumulator = fn(fn(initial, first.value, index++), second.value, index++);\n }\n // Iterate the rest of the values, updating the accumulator.\n let next;\n while (!(next = it.next()).done) {\n accumulator = fn(accumulator, next.value, index++);\n }\n // Return the final accumulated value.\n return accumulator;\n}\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * Create an iterator which repeats a value a number of times.\n *\n * @deprecated\n *\n * @param value - The value to repeat.\n *\n * @param count - The number of times to repeat the value.\n *\n * @returns A new iterator which repeats the specified value.\n *\n * #### Example\n * ```typescript\n * import { repeat } from '@lumino/algorithm';\n *\n * let stream = repeat(7, 3);\n *\n * Array.from(stream); // [7, 7, 7]\n * ```\n */\nfunction* repeat(value, count) {\n while (0 < count--) {\n yield value;\n }\n}\n/**\n * Create an iterator which yields a value a single time.\n *\n * @deprecated\n *\n * @param value - The value to wrap in an iterator.\n *\n * @returns A new iterator which yields the value a single time.\n *\n * #### Example\n * ```typescript\n * import { once } from '@lumino/algorithm';\n *\n * let stream = once(7);\n *\n * Array.from(stream); // [7]\n * ```\n */\nfunction* once(value) {\n yield value;\n}\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * Create an iterator for a retroable object.\n *\n * @param object - The retroable or array-like object of interest.\n *\n * @returns An iterator which traverses the object's values in reverse.\n *\n * #### Example\n * ```typescript\n * import { retro } from '@lumino/algorithm';\n *\n * let data = [1, 2, 3, 4, 5, 6];\n *\n * let stream = retro(data);\n *\n * Array.from(stream); // [6, 5, 4, 3, 2, 1]\n * ```\n */\nfunction* retro(object) {\n if (typeof object.retro === 'function') {\n yield* object.retro();\n }\n else {\n for (let index = object.length - 1; index > -1; index--) {\n yield object[index];\n }\n }\n}\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * Topologically sort an iterable of edges.\n *\n * @param edges - The iterable object of edges to sort.\n * An edge is represented as a 2-tuple of `[fromNode, toNode]`.\n *\n * @returns The topologically sorted array of nodes.\n *\n * #### Notes\n * If a cycle is present in the graph, the cycle will be ignored and\n * the return value will be only approximately sorted.\n *\n * #### Example\n * ```typescript\n * import { topologicSort } from '@lumino/algorithm';\n *\n * let data = [\n * ['d', 'e'],\n * ['c', 'd'],\n * ['a', 'b'],\n * ['b', 'c']\n * ];\n *\n * topologicSort(data); // ['a', 'b', 'c', 'd', 'e']\n * ```\n */\nfunction topologicSort(edges) {\n // Setup the shared sorting state.\n let sorted = [];\n let visited = new Set();\n let graph = new Map();\n // Add the edges to the graph.\n for (const edge of edges) {\n addEdge(edge);\n }\n // Visit each node in the graph.\n for (const [k] of graph) {\n visit(k);\n }\n // Return the sorted results.\n return sorted;\n // Add an edge to the graph.\n function addEdge(edge) {\n let [fromNode, toNode] = edge;\n let children = graph.get(toNode);\n if (children) {\n children.push(fromNode);\n }\n else {\n graph.set(toNode, [fromNode]);\n }\n }\n // Recursively visit the node.\n function visit(node) {\n if (visited.has(node)) {\n return;\n }\n visited.add(node);\n let children = graph.get(node);\n if (children) {\n for (const child of children) {\n visit(child);\n }\n }\n sorted.push(node);\n }\n}\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * Iterate over an iterable using a stepped increment.\n *\n * @param object - The iterable object of interest.\n *\n * @param step - The distance to step on each iteration. A value\n * of less than `1` will behave the same as a value of `1`.\n *\n * @returns An iterator which traverses the iterable step-wise.\n *\n * #### Example\n * ```typescript\n * import { stride } from '@lumino/algorithm';\n *\n * let data = [1, 2, 3, 4, 5, 6];\n *\n * let stream = stride(data, 2);\n *\n * Array.from(stream); // [1, 3, 5];\n * ```\n */\nfunction* stride(object, step) {\n let count = 0;\n for (const value of object) {\n if (0 === count++ % step) {\n yield value;\n }\n }\n}\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * The namespace for string-specific algorithms.\n */\nvar StringExt;\n(function (StringExt) {\n /**\n * Find the indices of characters in a source text.\n *\n * @param source - The source text which should be searched.\n *\n * @param query - The characters to locate in the source text.\n *\n * @param start - The index to start the search.\n *\n * @returns The matched indices, or `null` if there is no match.\n *\n * #### Complexity\n * Linear on `sourceText`.\n *\n * #### Notes\n * In order for there to be a match, all of the characters in `query`\n * **must** appear in `source` in the order given by `query`.\n *\n * Characters are matched using strict `===` equality.\n */\n function findIndices(source, query, start = 0) {\n let indices = new Array(query.length);\n for (let i = 0, j = start, n = query.length; i < n; ++i, ++j) {\n j = source.indexOf(query[i], j);\n if (j === -1) {\n return null;\n }\n indices[i] = j;\n }\n return indices;\n }\n StringExt.findIndices = findIndices;\n /**\n * A string matcher which uses a sum-of-squares algorithm.\n *\n * @param source - The source text which should be searched.\n *\n * @param query - The characters to locate in the source text.\n *\n * @param start - The index to start the search.\n *\n * @returns The match result, or `null` if there is no match.\n * A lower `score` represents a stronger match.\n *\n * #### Complexity\n * Linear on `sourceText`.\n *\n * #### Notes\n * This scoring algorithm uses a sum-of-squares approach to determine\n * the score. In order for there to be a match, all of the characters\n * in `query` **must** appear in `source` in order. The index of each\n * matching character is squared and added to the score. This means\n * that early and consecutive character matches are preferred, while\n * late matches are heavily penalized.\n */\n function matchSumOfSquares(source, query, start = 0) {\n let indices = findIndices(source, query, start);\n if (!indices) {\n return null;\n }\n let score = 0;\n for (let i = 0, n = indices.length; i < n; ++i) {\n let j = indices[i] - start;\n score += j * j;\n }\n return { score, indices };\n }\n StringExt.matchSumOfSquares = matchSumOfSquares;\n /**\n * A string matcher which uses a sum-of-deltas algorithm.\n *\n * @param source - The source text which should be searched.\n *\n * @param query - The characters to locate in the source text.\n *\n * @param start - The index to start the search.\n *\n * @returns The match result, or `null` if there is no match.\n * A lower `score` represents a stronger match.\n *\n * #### Complexity\n * Linear on `sourceText`.\n *\n * #### Notes\n * This scoring algorithm uses a sum-of-deltas approach to determine\n * the score. In order for there to be a match, all of the characters\n * in `query` **must** appear in `source` in order. The delta between\n * the indices are summed to create the score. This means that groups\n * of matched characters are preferred, while fragmented matches are\n * penalized.\n */\n function matchSumOfDeltas(source, query, start = 0) {\n let indices = findIndices(source, query, start);\n if (!indices) {\n return null;\n }\n let score = 0;\n let last = start - 1;\n for (let i = 0, n = indices.length; i < n; ++i) {\n let j = indices[i];\n score += j - last - 1;\n last = j;\n }\n return { score, indices };\n }\n StringExt.matchSumOfDeltas = matchSumOfDeltas;\n /**\n * Highlight the matched characters of a source text.\n *\n * @param source - The text which should be highlighted.\n *\n * @param indices - The indices of the matched characters. They must\n * appear in increasing order and must be in bounds of the source.\n *\n * @param fn - The function to apply to the matched chunks.\n *\n * @returns An array of unmatched and highlighted chunks.\n */\n function highlight(source, indices, fn) {\n // Set up the result array.\n let result = [];\n // Set up the counter variables.\n let k = 0;\n let last = 0;\n let n = indices.length;\n // Iterator over each index.\n while (k < n) {\n // Set up the chunk indices.\n let i = indices[k];\n let j = indices[k];\n // Advance the right chunk index until it's non-contiguous.\n while (++k < n && indices[k] === j + 1) {\n j++;\n }\n // Extract the unmatched text.\n if (last < i) {\n result.push(source.slice(last, i));\n }\n // Extract and highlight the matched text.\n if (i < j + 1) {\n result.push(fn(source.slice(i, j + 1)));\n }\n // Update the last visited index.\n last = j + 1;\n }\n // Extract any remaining unmatched text.\n if (last < source.length) {\n result.push(source.slice(last));\n }\n // Return the highlighted result.\n return result;\n }\n StringExt.highlight = highlight;\n /**\n * A 3-way string comparison function.\n *\n * @param a - The first string of interest.\n *\n * @param b - The second string of interest.\n *\n * @returns `-1` if `a < b`, else `1` if `a > b`, else `0`.\n */\n function cmp(a, b) {\n return a < b ? -1 : a > b ? 1 : 0;\n }\n StringExt.cmp = cmp;\n})(StringExt || (StringExt = {}));\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * Take a fixed number of items from an iterable.\n *\n * @param object - The iterable object of interest.\n *\n * @param count - The number of items to take from the iterable.\n *\n * @returns An iterator which yields the specified number of items\n * from the source iterable.\n *\n * #### Notes\n * The returned iterator will exhaust early if the source iterable\n * contains an insufficient number of items.\n *\n * #### Example\n * ```typescript\n * import { take } from '@lumino/algorithm';\n *\n * let stream = take([5, 4, 3, 2, 1, 0, -1], 3);\n *\n * Array.from(stream); // [5, 4, 3]\n * ```\n */\nfunction* take(object, count) {\n if (count < 1) {\n return;\n }\n const it = object[Symbol.iterator]();\n let item;\n while (0 < count-- && !(item = it.next()).done) {\n yield item.value;\n }\n}\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * Iterate several iterables in lockstep.\n *\n * @param objects - The iterable objects of interest.\n *\n * @returns An iterator which yields successive tuples of values where\n * each value is taken in turn from the provided iterables. It will\n * be as long as the shortest provided iterable.\n *\n * #### Example\n * ```typescript\n * import { zip } from '@lumino/algorithm';\n *\n * let data1 = [1, 2, 3];\n * let data2 = [4, 5, 6];\n *\n * let stream = zip(data1, data2);\n *\n * Array.from(stream); // [[1, 4], [2, 5], [3, 6]]\n * ```\n */\nfunction* zip(...objects) {\n const iters = objects.map(obj => obj[Symbol.iterator]());\n let tuple = iters.map(it => it.next());\n for (; every(tuple, item => !item.done); tuple = iters.map(it => it.next())) {\n yield tuple.map(item => item.value);\n }\n}\n\nexport { ArrayExt, StringExt, chain, each, empty, enumerate, every, filter, find, findIndex, map, max, min, minmax, once, range, reduce, repeat, retro, some, stride, take, toArray, toObject, topologicSort, zip };\n//# sourceMappingURL=index.es6.js.map\n","import { find, ArrayExt } from '@lumino/algorithm';\nimport { PromiseDelegate } from '@lumino/coreutils';\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * @packageDocumentation\n * @module signaling\n */\n/**\n * A concrete implementation of `ISignal`.\n *\n * #### Example\n * ```typescript\n * import { ISignal, Signal } from '@lumino/signaling';\n *\n * class SomeClass {\n *\n * constructor(name: string) {\n * this.name = name;\n * }\n *\n * readonly name: string;\n *\n * get valueChanged: ISignal {\n * return this._valueChanged;\n * }\n *\n * get value(): number {\n * return this._value;\n * }\n *\n * set value(value: number) {\n * if (value === this._value) {\n * return;\n * }\n * this._value = value;\n * this._valueChanged.emit(value);\n * }\n *\n * private _value = 0;\n * private _valueChanged = new Signal(this);\n * }\n *\n * function logger(sender: SomeClass, value: number): void {\n * console.log(sender.name, value);\n * }\n *\n * let m1 = new SomeClass('foo');\n * let m2 = new SomeClass('bar');\n *\n * m1.valueChanged.connect(logger);\n * m2.valueChanged.connect(logger);\n *\n * m1.value = 42; // logs: foo 42\n * m2.value = 17; // logs: bar 17\n * ```\n */\nclass Signal {\n /**\n * Construct a new signal.\n *\n * @param sender - The sender which owns the signal.\n */\n constructor(sender) {\n this.sender = sender;\n }\n /**\n * Connect a slot to the signal.\n *\n * @param slot - The slot to invoke when the signal is emitted.\n *\n * @param thisArg - The `this` context for the slot. If provided,\n * this must be a non-primitive object.\n *\n * @returns `true` if the connection succeeds, `false` otherwise.\n */\n connect(slot, thisArg) {\n return Private.connect(this, slot, thisArg);\n }\n /**\n * Disconnect a slot from the signal.\n *\n * @param slot - The slot to disconnect from the signal.\n *\n * @param thisArg - The `this` context for the slot. If provided,\n * this must be a non-primitive object.\n *\n * @returns `true` if the connection is removed, `false` otherwise.\n */\n disconnect(slot, thisArg) {\n return Private.disconnect(this, slot, thisArg);\n }\n /**\n * Emit the signal and invoke the connected slots.\n *\n * @param args - The args to pass to the connected slots.\n *\n * #### Notes\n * Slots are invoked synchronously in connection order.\n *\n * Exceptions thrown by connected slots will be caught and logged.\n */\n emit(args) {\n Private.emit(this, args);\n }\n}\n/**\n * The namespace for the `Signal` class statics.\n */\n(function (Signal) {\n /**\n * Remove all connections between a sender and receiver.\n *\n * @param sender - The sender object of interest.\n *\n * @param receiver - The receiver object of interest.\n *\n * #### Notes\n * If a `thisArg` is provided when connecting a signal, that object\n * is considered the receiver. Otherwise, the `slot` is considered\n * the receiver.\n */\n function disconnectBetween(sender, receiver) {\n Private.disconnectBetween(sender, receiver);\n }\n Signal.disconnectBetween = disconnectBetween;\n /**\n * Remove all connections where the given object is the sender.\n *\n * @param sender - The sender object of interest.\n */\n function disconnectSender(sender) {\n Private.disconnectSender(sender);\n }\n Signal.disconnectSender = disconnectSender;\n /**\n * Remove all connections where the given object is the receiver.\n *\n * @param receiver - The receiver object of interest.\n *\n * #### Notes\n * If a `thisArg` is provided when connecting a signal, that object\n * is considered the receiver. Otherwise, the `slot` is considered\n * the receiver.\n */\n function disconnectReceiver(receiver) {\n Private.disconnectReceiver(receiver);\n }\n Signal.disconnectReceiver = disconnectReceiver;\n /**\n * Remove all connections where an object is the sender or receiver.\n *\n * @param object - The object of interest.\n *\n * #### Notes\n * If a `thisArg` is provided when connecting a signal, that object\n * is considered the receiver. Otherwise, the `slot` is considered\n * the receiver.\n */\n function disconnectAll(object) {\n Private.disconnectAll(object);\n }\n Signal.disconnectAll = disconnectAll;\n /**\n * Clear all signal data associated with the given object.\n *\n * @param object - The object for which the data should be cleared.\n *\n * #### Notes\n * This removes all signal connections and any other signal data\n * associated with the object.\n */\n function clearData(object) {\n Private.disconnectAll(object);\n }\n Signal.clearData = clearData;\n /**\n * Get the signal exception handler.\n *\n * @returns The current exception handler.\n *\n * #### Notes\n * The default exception handler is `console.error`.\n */\n function getExceptionHandler() {\n return Private.exceptionHandler;\n }\n Signal.getExceptionHandler = getExceptionHandler;\n /**\n * Set the signal exception handler.\n *\n * @param handler - The function to use as the exception handler.\n *\n * @returns The old exception handler.\n *\n * #### Notes\n * The exception handler is invoked when a slot throws an exception.\n */\n function setExceptionHandler(handler) {\n let old = Private.exceptionHandler;\n Private.exceptionHandler = handler;\n return old;\n }\n Signal.setExceptionHandler = setExceptionHandler;\n})(Signal || (Signal = {}));\n/**\n * A concrete implementation of `IStream`.\n *\n * #### Example\n * ```typescript\n * import { IStream, Stream } from '@lumino/signaling';\n *\n * class SomeClass {\n *\n * constructor(name: string) {\n * this.name = name;\n * }\n *\n * readonly name: string;\n *\n * get pings(): IStream {\n * return this._pings;\n * }\n *\n * ping(value: string) {\n * this._pings.emit(value);\n * }\n *\n * private _pings = new Stream(this);\n * }\n *\n * let m1 = new SomeClass('foo');\n *\n * m1.pings.connect((_, value: string) => {\n * console.log('connect', value);\n * });\n *\n * void (async () => {\n * for await (const ping of m1.pings) {\n * console.log('iterator', ping);\n * }\n * })();\n *\n * m1.ping('alpha'); // logs: connect alpha\n * // logs: iterator alpha\n * m1.ping('beta'); // logs: connect beta\n * // logs: iterator beta\n * ```\n */\nclass Stream extends Signal {\n constructor() {\n super(...arguments);\n this._pending = new PromiseDelegate();\n }\n /**\n * Return an async iterator that yields every emission.\n */\n async *[Symbol.asyncIterator]() {\n let pending = this._pending;\n while (true) {\n try {\n const { args, next } = await pending.promise;\n pending = next;\n yield args;\n }\n catch (_) {\n return; // Any promise rejection stops the iterator.\n }\n }\n }\n /**\n * Emit the signal, invoke the connected slots, and yield the emission.\n *\n * @param args - The args to pass to the connected slots.\n */\n emit(args) {\n const pending = this._pending;\n const next = (this._pending = new PromiseDelegate());\n pending.resolve({ args, next });\n super.emit(args);\n }\n /**\n * Stop the stream's async iteration.\n */\n stop() {\n this._pending.promise.catch(() => undefined);\n this._pending.reject('stop');\n this._pending = new PromiseDelegate();\n }\n}\n/**\n * The namespace for the module implementation details.\n */\nvar Private;\n(function (Private) {\n /**\n * The signal exception handler function.\n */\n Private.exceptionHandler = (err) => {\n console.error(err);\n };\n /**\n * Connect a slot to a signal.\n *\n * @param signal - The signal of interest.\n *\n * @param slot - The slot to invoke when the signal is emitted.\n *\n * @param thisArg - The `this` context for the slot. If provided,\n * this must be a non-primitive object.\n *\n * @returns `true` if the connection succeeds, `false` otherwise.\n */\n function connect(signal, slot, thisArg) {\n // Coerce a `null` `thisArg` to `undefined`.\n thisArg = thisArg || undefined;\n // Ensure the sender's array of receivers is created.\n let receivers = receiversForSender.get(signal.sender);\n if (!receivers) {\n receivers = [];\n receiversForSender.set(signal.sender, receivers);\n }\n // Bail if a matching connection already exists.\n if (findConnection(receivers, signal, slot, thisArg)) {\n return false;\n }\n // Choose the best object for the receiver.\n let receiver = thisArg || slot;\n // Ensure the receiver's array of senders is created.\n let senders = sendersForReceiver.get(receiver);\n if (!senders) {\n senders = [];\n sendersForReceiver.set(receiver, senders);\n }\n // Create a new connection and add it to the end of each array.\n let connection = { signal, slot, thisArg };\n receivers.push(connection);\n senders.push(connection);\n // Indicate a successful connection.\n return true;\n }\n Private.connect = connect;\n /**\n * Disconnect a slot from a signal.\n *\n * @param signal - The signal of interest.\n *\n * @param slot - The slot to disconnect from the signal.\n *\n * @param thisArg - The `this` context for the slot. If provided,\n * this must be a non-primitive object.\n *\n * @returns `true` if the connection is removed, `false` otherwise.\n */\n function disconnect(signal, slot, thisArg) {\n // Coerce a `null` `thisArg` to `undefined`.\n thisArg = thisArg || undefined;\n // Lookup the list of receivers, and bail if none exist.\n let receivers = receiversForSender.get(signal.sender);\n if (!receivers || receivers.length === 0) {\n return false;\n }\n // Bail if no matching connection exits.\n let connection = findConnection(receivers, signal, slot, thisArg);\n if (!connection) {\n return false;\n }\n // Choose the best object for the receiver.\n let receiver = thisArg || slot;\n // Lookup the array of senders, which is now known to exist.\n let senders = sendersForReceiver.get(receiver);\n // Clear the connection and schedule cleanup of the arrays.\n connection.signal = null;\n scheduleCleanup(receivers);\n scheduleCleanup(senders);\n // Indicate a successful disconnection.\n return true;\n }\n Private.disconnect = disconnect;\n /**\n * Remove all connections between a sender and receiver.\n *\n * @param sender - The sender object of interest.\n *\n * @param receiver - The receiver object of interest.\n */\n function disconnectBetween(sender, receiver) {\n // If there are no receivers, there is nothing to do.\n let receivers = receiversForSender.get(sender);\n if (!receivers || receivers.length === 0) {\n return;\n }\n // If there are no senders, there is nothing to do.\n let senders = sendersForReceiver.get(receiver);\n if (!senders || senders.length === 0) {\n return;\n }\n // Clear each connection between the sender and receiver.\n for (const connection of senders) {\n // Skip connections which have already been cleared.\n if (!connection.signal) {\n continue;\n }\n // Clear the connection if it matches the sender.\n if (connection.signal.sender === sender) {\n connection.signal = null;\n }\n }\n // Schedule a cleanup of the senders and receivers.\n scheduleCleanup(receivers);\n scheduleCleanup(senders);\n }\n Private.disconnectBetween = disconnectBetween;\n /**\n * Remove all connections where the given object is the sender.\n *\n * @param sender - The sender object of interest.\n */\n function disconnectSender(sender) {\n // If there are no receivers, there is nothing to do.\n let receivers = receiversForSender.get(sender);\n if (!receivers || receivers.length === 0) {\n return;\n }\n // Clear each receiver connection.\n for (const connection of receivers) {\n // Skip connections which have already been cleared.\n if (!connection.signal) {\n continue;\n }\n // Choose the best object for the receiver.\n let receiver = connection.thisArg || connection.slot;\n // Clear the connection.\n connection.signal = null;\n // Cleanup the array of senders, which is now known to exist.\n scheduleCleanup(sendersForReceiver.get(receiver));\n }\n // Schedule a cleanup of the receivers.\n scheduleCleanup(receivers);\n }\n Private.disconnectSender = disconnectSender;\n /**\n * Remove all connections where the given object is the receiver.\n *\n * @param receiver - The receiver object of interest.\n */\n function disconnectReceiver(receiver) {\n // If there are no senders, there is nothing to do.\n let senders = sendersForReceiver.get(receiver);\n if (!senders || senders.length === 0) {\n return;\n }\n // Clear each sender connection.\n for (const connection of senders) {\n // Skip connections which have already been cleared.\n if (!connection.signal) {\n continue;\n }\n // Lookup the sender for the connection.\n let sender = connection.signal.sender;\n // Clear the connection.\n connection.signal = null;\n // Cleanup the array of receivers, which is now known to exist.\n scheduleCleanup(receiversForSender.get(sender));\n }\n // Schedule a cleanup of the list of senders.\n scheduleCleanup(senders);\n }\n Private.disconnectReceiver = disconnectReceiver;\n /**\n * Remove all connections where an object is the sender or receiver.\n *\n * @param object - The object of interest.\n */\n function disconnectAll(object) {\n // Remove all connections where the given object is the sender.\n disconnectSender(object);\n // Remove all connections where the given object is the receiver.\n disconnectReceiver(object);\n }\n Private.disconnectAll = disconnectAll;\n /**\n * Emit a signal and invoke its connected slots.\n *\n * @param signal - The signal of interest.\n *\n * @param args - The args to pass to the connected slots.\n *\n * #### Notes\n * Slots are invoked synchronously in connection order.\n *\n * Exceptions thrown by connected slots will be caught and logged.\n */\n function emit(signal, args) {\n // If there are no receivers, there is nothing to do.\n let receivers = receiversForSender.get(signal.sender);\n if (!receivers || receivers.length === 0) {\n return;\n }\n // Invoke the slots for connections with a matching signal.\n // Any connections added during emission are not invoked.\n for (let i = 0, n = receivers.length; i < n; ++i) {\n let connection = receivers[i];\n if (connection.signal === signal) {\n invokeSlot(connection, args);\n }\n }\n }\n Private.emit = emit;\n /**\n * A weak mapping of sender to array of receiver connections.\n */\n const receiversForSender = new WeakMap();\n /**\n * A weak mapping of receiver to array of sender connections.\n */\n const sendersForReceiver = new WeakMap();\n /**\n * A set of connection arrays which are pending cleanup.\n */\n const dirtySet = new Set();\n /**\n * A function to schedule an event loop callback.\n */\n const schedule = (() => {\n let ok = typeof requestAnimationFrame === 'function';\n return ok ? requestAnimationFrame : setImmediate;\n })();\n /**\n * Find a connection which matches the given parameters.\n */\n function findConnection(connections, signal, slot, thisArg) {\n return find(connections, connection => connection.signal === signal &&\n connection.slot === slot &&\n connection.thisArg === thisArg);\n }\n /**\n * Invoke a slot with the given parameters.\n *\n * The connection is assumed to be valid.\n *\n * Exceptions in the slot will be caught and logged.\n */\n function invokeSlot(connection, args) {\n let { signal, slot, thisArg } = connection;\n try {\n slot.call(thisArg, signal.sender, args);\n }\n catch (err) {\n Private.exceptionHandler(err);\n }\n }\n /**\n * Schedule a cleanup of a connection array.\n *\n * This will add the array to the dirty set and schedule a deferred\n * cleanup of the array contents. On cleanup, any connection with a\n * `null` signal will be removed from the array.\n */\n function scheduleCleanup(array) {\n if (dirtySet.size === 0) {\n schedule(cleanupDirtySet);\n }\n dirtySet.add(array);\n }\n /**\n * Cleanup the connection lists in the dirty set.\n *\n * This function should only be invoked asynchronously, when the\n * stack frame is guaranteed to not be on the path of user code.\n */\n function cleanupDirtySet() {\n dirtySet.forEach(cleanupConnections);\n dirtySet.clear();\n }\n /**\n * Cleanup the dirty connections in a connections array.\n *\n * This will remove any connection with a `null` signal.\n *\n * This function should only be invoked asynchronously, when the\n * stack frame is guaranteed to not be on the path of user code.\n */\n function cleanupConnections(connections) {\n ArrayExt.removeAllWhere(connections, isDeadConnection);\n }\n /**\n * Test whether a connection is dead.\n *\n * A dead connection has a `null` signal.\n */\n function isDeadConnection(connection) {\n return connection.signal === null;\n }\n})(Private || (Private = {}));\n\nexport { Signal, Stream };\n//# sourceMappingURL=index.es6.js.map\n","(function (global, factory) {\n typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :\n typeof define === 'function' && define.amd ? define(['exports'], factory) :\n (global = typeof globalThis !== 'undefined' ? globalThis : global || self, factory(global.lumino_coreutils = {}));\n})(this, (function (exports) { 'use strict';\n\n // Copyright (c) Jupyter Development Team.\n // Distributed under the terms of the Modified BSD License.\n /*-----------------------------------------------------------------------------\n | Copyright (c) 2014-2017, PhosphorJS Contributors\n |\n | Distributed under the terms of the BSD 3-Clause License.\n |\n | The full license is in the file LICENSE, distributed with this software.\n |----------------------------------------------------------------------------*/\n /**\n * The namespace for JSON-specific functions.\n */\n exports.JSONExt = void 0;\n (function (JSONExt) {\n /**\n * A shared frozen empty JSONObject\n */\n JSONExt.emptyObject = Object.freeze({});\n /**\n * A shared frozen empty JSONArray\n */\n JSONExt.emptyArray = Object.freeze([]);\n /**\n * Test whether a JSON value is a primitive.\n *\n * @param value - The JSON value of interest.\n *\n * @returns `true` if the value is a primitive,`false` otherwise.\n */\n function isPrimitive(value) {\n return (value === null ||\n typeof value === 'boolean' ||\n typeof value === 'number' ||\n typeof value === 'string');\n }\n JSONExt.isPrimitive = isPrimitive;\n function isArray(value) {\n return Array.isArray(value);\n }\n JSONExt.isArray = isArray;\n function isObject(value) {\n return !isPrimitive(value) && !isArray(value);\n }\n JSONExt.isObject = isObject;\n /**\n * Compare two JSON values for deep equality.\n *\n * @param first - The first JSON value of interest.\n *\n * @param second - The second JSON value of interest.\n *\n * @returns `true` if the values are equivalent, `false` otherwise.\n */\n function deepEqual(first, second) {\n // Check referential and primitive equality first.\n if (first === second) {\n return true;\n }\n // If one is a primitive, the `===` check ruled out the other.\n if (isPrimitive(first) || isPrimitive(second)) {\n return false;\n }\n // Test whether they are arrays.\n let a1 = isArray(first);\n let a2 = isArray(second);\n // Bail if the types are different.\n if (a1 !== a2) {\n return false;\n }\n // If they are both arrays, compare them.\n if (a1 && a2) {\n return deepArrayEqual(first, second);\n }\n // At this point, they must both be objects.\n return deepObjectEqual(first, second);\n }\n JSONExt.deepEqual = deepEqual;\n /**\n * Create a deep copy of a JSON value.\n *\n * @param value - The JSON value to copy.\n *\n * @returns A deep copy of the given JSON value.\n */\n function deepCopy(value) {\n // Do nothing for primitive values.\n if (isPrimitive(value)) {\n return value;\n }\n // Deep copy an array.\n if (isArray(value)) {\n return deepArrayCopy(value);\n }\n // Deep copy an object.\n return deepObjectCopy(value);\n }\n JSONExt.deepCopy = deepCopy;\n /**\n * Compare two JSON arrays for deep equality.\n */\n function deepArrayEqual(first, second) {\n // Check referential equality first.\n if (first === second) {\n return true;\n }\n // Test the arrays for equal length.\n if (first.length !== second.length) {\n return false;\n }\n // Compare the values for equality.\n for (let i = 0, n = first.length; i < n; ++i) {\n if (!deepEqual(first[i], second[i])) {\n return false;\n }\n }\n // At this point, the arrays are equal.\n return true;\n }\n /**\n * Compare two JSON objects for deep equality.\n */\n function deepObjectEqual(first, second) {\n // Check referential equality first.\n if (first === second) {\n return true;\n }\n // Check for the first object's keys in the second object.\n for (let key in first) {\n if (first[key] !== undefined && !(key in second)) {\n return false;\n }\n }\n // Check for the second object's keys in the first object.\n for (let key in second) {\n if (second[key] !== undefined && !(key in first)) {\n return false;\n }\n }\n // Compare the values for equality.\n for (let key in first) {\n // Get the values.\n let firstValue = first[key];\n let secondValue = second[key];\n // If both are undefined, ignore the key.\n if (firstValue === undefined && secondValue === undefined) {\n continue;\n }\n // If only one value is undefined, the objects are not equal.\n if (firstValue === undefined || secondValue === undefined) {\n return false;\n }\n // Compare the values.\n if (!deepEqual(firstValue, secondValue)) {\n return false;\n }\n }\n // At this point, the objects are equal.\n return true;\n }\n /**\n * Create a deep copy of a JSON array.\n */\n function deepArrayCopy(value) {\n let result = new Array(value.length);\n for (let i = 0, n = value.length; i < n; ++i) {\n result[i] = deepCopy(value[i]);\n }\n return result;\n }\n /**\n * Create a deep copy of a JSON object.\n */\n function deepObjectCopy(value) {\n let result = {};\n for (let key in value) {\n // Ignore undefined values.\n let subvalue = value[key];\n if (subvalue === undefined) {\n continue;\n }\n result[key] = deepCopy(subvalue);\n }\n return result;\n }\n })(exports.JSONExt || (exports.JSONExt = {}));\n\n // Copyright (c) Jupyter Development Team.\n // Distributed under the terms of the Modified BSD License.\n /*-----------------------------------------------------------------------------\n | Copyright (c) 2014-2017, PhosphorJS Contributors\n |\n | Distributed under the terms of the BSD 3-Clause License.\n |\n | The full license is in the file LICENSE, distributed with this software.\n |----------------------------------------------------------------------------*/\n /**\n * An object which stores MIME data for general application use.\n *\n * #### Notes\n * This class does not attempt to enforce \"correctness\" of MIME types\n * and their associated data. Since this class is designed to transfer\n * arbitrary data and objects within the same application, it assumes\n * that the user provides correct and accurate data.\n */\n class MimeData {\n constructor() {\n this._types = [];\n this._values = [];\n }\n /**\n * Get an array of the MIME types contained within the dataset.\n *\n * @returns A new array of the MIME types, in order of insertion.\n */\n types() {\n return this._types.slice();\n }\n /**\n * Test whether the dataset has an entry for the given type.\n *\n * @param mime - The MIME type of interest.\n *\n * @returns `true` if the dataset contains a value for the given\n * MIME type, `false` otherwise.\n */\n hasData(mime) {\n return this._types.indexOf(mime) !== -1;\n }\n /**\n * Get the data value for the given MIME type.\n *\n * @param mime - The MIME type of interest.\n *\n * @returns The value for the given MIME type, or `undefined` if\n * the dataset does not contain a value for the type.\n */\n getData(mime) {\n let i = this._types.indexOf(mime);\n return i !== -1 ? this._values[i] : undefined;\n }\n /**\n * Set the data value for the given MIME type.\n *\n * @param mime - The MIME type of interest.\n *\n * @param data - The data value for the given MIME type.\n *\n * #### Notes\n * This will overwrite any previous entry for the MIME type.\n */\n setData(mime, data) {\n this.clearData(mime);\n this._types.push(mime);\n this._values.push(data);\n }\n /**\n * Remove the data entry for the given MIME type.\n *\n * @param mime - The MIME type of interest.\n *\n * #### Notes\n * This is a no-op if there is no entry for the given MIME type.\n */\n clearData(mime) {\n let i = this._types.indexOf(mime);\n if (i !== -1) {\n this._types.splice(i, 1);\n this._values.splice(i, 1);\n }\n }\n /**\n * Remove all data entries from the dataset.\n */\n clear() {\n this._types.length = 0;\n this._values.length = 0;\n }\n }\n\n // Copyright (c) Jupyter Development Team.\n // Distributed under the terms of the Modified BSD License.\n /*-----------------------------------------------------------------------------\n | Copyright (c) 2014-2017, PhosphorJS Contributors\n |\n | Distributed under the terms of the BSD 3-Clause License.\n |\n | The full license is in the file LICENSE, distributed with this software.\n |----------------------------------------------------------------------------*/\n /**\n * A class which wraps a promise into a delegate object.\n *\n * #### Notes\n * This class is useful when the logic to resolve or reject a promise\n * cannot be defined at the point where the promise is created.\n */\n class PromiseDelegate {\n /**\n * Construct a new promise delegate.\n */\n constructor() {\n this.promise = new Promise((resolve, reject) => {\n this._resolve = resolve;\n this._reject = reject;\n });\n }\n /**\n * Resolve the wrapped promise with the given value.\n *\n * @param value - The value to use for resolving the promise.\n */\n resolve(value) {\n let resolve = this._resolve;\n resolve(value);\n }\n /**\n * Reject the wrapped promise with the given value.\n *\n * @reason - The reason for rejecting the promise.\n */\n reject(reason) {\n let reject = this._reject;\n reject(reason);\n }\n }\n\n // Copyright (c) Jupyter Development Team.\n // Distributed under the terms of the Modified BSD License.\n /*-----------------------------------------------------------------------------\n | Copyright (c) 2014-2017, PhosphorJS Contributors\n |\n | Distributed under the terms of the BSD 3-Clause License.\n |\n | The full license is in the file LICENSE, distributed with this software.\n |----------------------------------------------------------------------------*/\n /**\n * A runtime object which captures compile-time type information.\n *\n * #### Notes\n * A token captures the compile-time type of an interface or class in\n * an object which can be used at runtime in a type-safe fashion.\n */\n class Token {\n /**\n * Construct a new token.\n *\n * @param name - A human readable name for the token.\n * @param description - Token purpose description for documentation.\n */\n constructor(name, description) {\n this.name = name;\n this.description = description !== null && description !== void 0 ? description : '';\n this._tokenStructuralPropertyT = null;\n }\n }\n\n // Copyright (c) Jupyter Development Team.\n // Distributed under the terms of the Modified BSD License.\n /*-----------------------------------------------------------------------------\n | Copyright (c) 2014-2017, PhosphorJS Contributors\n |\n | Distributed under the terms of the BSD 3-Clause License.\n |\n | The full license is in the file LICENSE, distributed with this software.\n |----------------------------------------------------------------------------*/\n // Fallback\n function fallbackRandomValues(buffer) {\n let value = 0;\n for (let i = 0, n = buffer.length; i < n; ++i) {\n if (i % 4 === 0) {\n value = (Math.random() * 0xffffffff) >>> 0;\n }\n buffer[i] = value & 0xff;\n value >>>= 8;\n }\n }\n\n // Copyright (c) Jupyter Development Team.\n // Distributed under the terms of the Modified BSD License.\n /*-----------------------------------------------------------------------------\n | Copyright (c) 2014-2017, PhosphorJS Contributors\n |\n | Distributed under the terms of the BSD 3-Clause License.\n |\n | The full license is in the file LICENSE, distributed with this software.\n |----------------------------------------------------------------------------*/\n /**\n * The namespace for random number related functionality.\n */\n exports.Random = void 0;\n (function (Random) {\n /**\n * A function which generates random bytes.\n *\n * @param buffer - The `Uint8Array` to fill with random bytes.\n *\n * #### Notes\n * A cryptographically strong random number generator will be used if\n * available. Otherwise, `Math.random` will be used as a fallback for\n * randomness.\n *\n * The following RNGs are supported, listed in order of precedence:\n * - `window.crypto.getRandomValues`\n * - `window.msCrypto.getRandomValues`\n * - `require('crypto').randomFillSync\n * - `require('crypto').randomBytes\n * - `Math.random`\n */\n Random.getRandomValues = (() => {\n // Look up the crypto module if available.\n const crypto = (typeof window !== 'undefined' && (window.crypto || window.msCrypto)) ||\n null;\n // Modern browsers and IE 11\n if (crypto && typeof crypto.getRandomValues === 'function') {\n return function getRandomValues(buffer) {\n return crypto.getRandomValues(buffer);\n };\n }\n // Fallback\n return fallbackRandomValues;\n })();\n })(exports.Random || (exports.Random = {}));\n\n // Copyright (c) Jupyter Development Team.\n // Distributed under the terms of the Modified BSD License.\n /*-----------------------------------------------------------------------------\n | Copyright (c) 2014-2017, PhosphorJS Contributors\n |\n | Distributed under the terms of the BSD 3-Clause License.\n |\n | The full license is in the file LICENSE, distributed with this software.\n |----------------------------------------------------------------------------*/\n /**\n * A function which creates a function that generates UUID v4 identifiers.\n *\n * @returns A new function that creates a UUID v4 string.\n *\n * #### Notes\n * This implementation complies with RFC 4122.\n *\n * This uses `Random.getRandomValues()` for random bytes, which in\n * turn will use the underlying `crypto` module of the platform if\n * it is available. The fallback for randomness is `Math.random`.\n */\n function uuid4Factory(getRandomValues) {\n // Create a 16 byte array to hold the random values.\n const bytes = new Uint8Array(16);\n // Create a look up table from bytes to hex strings.\n const lut = new Array(256);\n // Pad the single character hex digits with a leading zero.\n for (let i = 0; i < 16; ++i) {\n lut[i] = '0' + i.toString(16);\n }\n // Populate the rest of the hex digits.\n for (let i = 16; i < 256; ++i) {\n lut[i] = i.toString(16);\n }\n // Return a function which generates the UUID.\n return function uuid4() {\n // Get a new batch of random values.\n getRandomValues(bytes);\n // Set the UUID version number to 4.\n bytes[6] = 0x40 | (bytes[6] & 0x0f);\n // Set the clock sequence bit to the RFC spec.\n bytes[8] = 0x80 | (bytes[8] & 0x3f);\n // Assemble the UUID string.\n return (lut[bytes[0]] +\n lut[bytes[1]] +\n lut[bytes[2]] +\n lut[bytes[3]] +\n '-' +\n lut[bytes[4]] +\n lut[bytes[5]] +\n '-' +\n lut[bytes[6]] +\n lut[bytes[7]] +\n '-' +\n lut[bytes[8]] +\n lut[bytes[9]] +\n '-' +\n lut[bytes[10]] +\n lut[bytes[11]] +\n lut[bytes[12]] +\n lut[bytes[13]] +\n lut[bytes[14]] +\n lut[bytes[15]]);\n };\n }\n\n // Copyright (c) Jupyter Development Team.\n // Distributed under the terms of the Modified BSD License.\n /*-----------------------------------------------------------------------------\n | Copyright (c) 2014-2017, PhosphorJS Contributors\n |\n | Distributed under the terms of the BSD 3-Clause License.\n |\n | The full license is in the file LICENSE, distributed with this software.\n |----------------------------------------------------------------------------*/\n /**\n * The namespace for UUID related functionality.\n */\n exports.UUID = void 0;\n (function (UUID) {\n /**\n * A function which generates UUID v4 identifiers.\n *\n * @returns A new UUID v4 string.\n *\n * #### Notes\n * This implementation complies with RFC 4122.\n *\n * This uses `Random.getRandomValues()` for random bytes, which in\n * turn will use the underlying `crypto` module of the platform if\n * it is available. The fallback for randomness is `Math.random`.\n */\n UUID.uuid4 = uuid4Factory(exports.Random.getRandomValues);\n })(exports.UUID || (exports.UUID = {}));\n\n exports.MimeData = MimeData;\n exports.PromiseDelegate = PromiseDelegate;\n exports.Token = Token;\n\n}));\n//# sourceMappingURL=index.js.map\n","(function (global, factory) {\n\ttypeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :\n\ttypeof define === 'function' && define.amd ? define(factory) :\n\t(global.JSON5 = factory());\n}(this, (function () { 'use strict';\n\n\tfunction createCommonjsModule(fn, module) {\n\t\treturn module = { exports: {} }, fn(module, module.exports), module.exports;\n\t}\n\n\tvar _global = createCommonjsModule(function (module) {\n\t// https://github.com/zloirock/core-js/issues/86#issuecomment-115759028\n\tvar global = module.exports = typeof window != 'undefined' && window.Math == Math\n\t ? window : typeof self != 'undefined' && self.Math == Math ? self\n\t // eslint-disable-next-line no-new-func\n\t : Function('return this')();\n\tif (typeof __g == 'number') { __g = global; } // eslint-disable-line no-undef\n\t});\n\n\tvar _core = createCommonjsModule(function (module) {\n\tvar core = module.exports = { version: '2.6.5' };\n\tif (typeof __e == 'number') { __e = core; } // eslint-disable-line no-undef\n\t});\n\tvar _core_1 = _core.version;\n\n\tvar _isObject = function (it) {\n\t return typeof it === 'object' ? it !== null : typeof it === 'function';\n\t};\n\n\tvar _anObject = function (it) {\n\t if (!_isObject(it)) { throw TypeError(it + ' is not an object!'); }\n\t return it;\n\t};\n\n\tvar _fails = function (exec) {\n\t try {\n\t return !!exec();\n\t } catch (e) {\n\t return true;\n\t }\n\t};\n\n\t// Thank's IE8 for his funny defineProperty\n\tvar _descriptors = !_fails(function () {\n\t return Object.defineProperty({}, 'a', { get: function () { return 7; } }).a != 7;\n\t});\n\n\tvar document = _global.document;\n\t// typeof document.createElement is 'object' in old IE\n\tvar is = _isObject(document) && _isObject(document.createElement);\n\tvar _domCreate = function (it) {\n\t return is ? document.createElement(it) : {};\n\t};\n\n\tvar _ie8DomDefine = !_descriptors && !_fails(function () {\n\t return Object.defineProperty(_domCreate('div'), 'a', { get: function () { return 7; } }).a != 7;\n\t});\n\n\t// 7.1.1 ToPrimitive(input [, PreferredType])\n\n\t// instead of the ES6 spec version, we didn't implement @@toPrimitive case\n\t// and the second argument - flag - preferred type is a string\n\tvar _toPrimitive = function (it, S) {\n\t if (!_isObject(it)) { return it; }\n\t var fn, val;\n\t if (S && typeof (fn = it.toString) == 'function' && !_isObject(val = fn.call(it))) { return val; }\n\t if (typeof (fn = it.valueOf) == 'function' && !_isObject(val = fn.call(it))) { return val; }\n\t if (!S && typeof (fn = it.toString) == 'function' && !_isObject(val = fn.call(it))) { return val; }\n\t throw TypeError(\"Can't convert object to primitive value\");\n\t};\n\n\tvar dP = Object.defineProperty;\n\n\tvar f = _descriptors ? Object.defineProperty : function defineProperty(O, P, Attributes) {\n\t _anObject(O);\n\t P = _toPrimitive(P, true);\n\t _anObject(Attributes);\n\t if (_ie8DomDefine) { try {\n\t return dP(O, P, Attributes);\n\t } catch (e) { /* empty */ } }\n\t if ('get' in Attributes || 'set' in Attributes) { throw TypeError('Accessors not supported!'); }\n\t if ('value' in Attributes) { O[P] = Attributes.value; }\n\t return O;\n\t};\n\n\tvar _objectDp = {\n\t\tf: f\n\t};\n\n\tvar _propertyDesc = function (bitmap, value) {\n\t return {\n\t enumerable: !(bitmap & 1),\n\t configurable: !(bitmap & 2),\n\t writable: !(bitmap & 4),\n\t value: value\n\t };\n\t};\n\n\tvar _hide = _descriptors ? function (object, key, value) {\n\t return _objectDp.f(object, key, _propertyDesc(1, value));\n\t} : function (object, key, value) {\n\t object[key] = value;\n\t return object;\n\t};\n\n\tvar hasOwnProperty = {}.hasOwnProperty;\n\tvar _has = function (it, key) {\n\t return hasOwnProperty.call(it, key);\n\t};\n\n\tvar id = 0;\n\tvar px = Math.random();\n\tvar _uid = function (key) {\n\t return 'Symbol('.concat(key === undefined ? '' : key, ')_', (++id + px).toString(36));\n\t};\n\n\tvar _library = false;\n\n\tvar _shared = createCommonjsModule(function (module) {\n\tvar SHARED = '__core-js_shared__';\n\tvar store = _global[SHARED] || (_global[SHARED] = {});\n\n\t(module.exports = function (key, value) {\n\t return store[key] || (store[key] = value !== undefined ? value : {});\n\t})('versions', []).push({\n\t version: _core.version,\n\t mode: _library ? 'pure' : 'global',\n\t copyright: '© 2019 Denis Pushkarev (zloirock.ru)'\n\t});\n\t});\n\n\tvar _functionToString = _shared('native-function-to-string', Function.toString);\n\n\tvar _redefine = createCommonjsModule(function (module) {\n\tvar SRC = _uid('src');\n\n\tvar TO_STRING = 'toString';\n\tvar TPL = ('' + _functionToString).split(TO_STRING);\n\n\t_core.inspectSource = function (it) {\n\t return _functionToString.call(it);\n\t};\n\n\t(module.exports = function (O, key, val, safe) {\n\t var isFunction = typeof val == 'function';\n\t if (isFunction) { _has(val, 'name') || _hide(val, 'name', key); }\n\t if (O[key] === val) { return; }\n\t if (isFunction) { _has(val, SRC) || _hide(val, SRC, O[key] ? '' + O[key] : TPL.join(String(key))); }\n\t if (O === _global) {\n\t O[key] = val;\n\t } else if (!safe) {\n\t delete O[key];\n\t _hide(O, key, val);\n\t } else if (O[key]) {\n\t O[key] = val;\n\t } else {\n\t _hide(O, key, val);\n\t }\n\t// add fake Function#toString for correct work wrapped methods / constructors with methods like LoDash isNative\n\t})(Function.prototype, TO_STRING, function toString() {\n\t return typeof this == 'function' && this[SRC] || _functionToString.call(this);\n\t});\n\t});\n\n\tvar _aFunction = function (it) {\n\t if (typeof it != 'function') { throw TypeError(it + ' is not a function!'); }\n\t return it;\n\t};\n\n\t// optional / simple context binding\n\n\tvar _ctx = function (fn, that, length) {\n\t _aFunction(fn);\n\t if (that === undefined) { return fn; }\n\t switch (length) {\n\t case 1: return function (a) {\n\t return fn.call(that, a);\n\t };\n\t case 2: return function (a, b) {\n\t return fn.call(that, a, b);\n\t };\n\t case 3: return function (a, b, c) {\n\t return fn.call(that, a, b, c);\n\t };\n\t }\n\t return function (/* ...args */) {\n\t return fn.apply(that, arguments);\n\t };\n\t};\n\n\tvar PROTOTYPE = 'prototype';\n\n\tvar $export = function (type, name, source) {\n\t var IS_FORCED = type & $export.F;\n\t var IS_GLOBAL = type & $export.G;\n\t var IS_STATIC = type & $export.S;\n\t var IS_PROTO = type & $export.P;\n\t var IS_BIND = type & $export.B;\n\t var target = IS_GLOBAL ? _global : IS_STATIC ? _global[name] || (_global[name] = {}) : (_global[name] || {})[PROTOTYPE];\n\t var exports = IS_GLOBAL ? _core : _core[name] || (_core[name] = {});\n\t var expProto = exports[PROTOTYPE] || (exports[PROTOTYPE] = {});\n\t var key, own, out, exp;\n\t if (IS_GLOBAL) { source = name; }\n\t for (key in source) {\n\t // contains in native\n\t own = !IS_FORCED && target && target[key] !== undefined;\n\t // export native or passed\n\t out = (own ? target : source)[key];\n\t // bind timers to global for call from export context\n\t exp = IS_BIND && own ? _ctx(out, _global) : IS_PROTO && typeof out == 'function' ? _ctx(Function.call, out) : out;\n\t // extend global\n\t if (target) { _redefine(target, key, out, type & $export.U); }\n\t // export\n\t if (exports[key] != out) { _hide(exports, key, exp); }\n\t if (IS_PROTO && expProto[key] != out) { expProto[key] = out; }\n\t }\n\t};\n\t_global.core = _core;\n\t// type bitmap\n\t$export.F = 1; // forced\n\t$export.G = 2; // global\n\t$export.S = 4; // static\n\t$export.P = 8; // proto\n\t$export.B = 16; // bind\n\t$export.W = 32; // wrap\n\t$export.U = 64; // safe\n\t$export.R = 128; // real proto method for `library`\n\tvar _export = $export;\n\n\t// 7.1.4 ToInteger\n\tvar ceil = Math.ceil;\n\tvar floor = Math.floor;\n\tvar _toInteger = function (it) {\n\t return isNaN(it = +it) ? 0 : (it > 0 ? floor : ceil)(it);\n\t};\n\n\t// 7.2.1 RequireObjectCoercible(argument)\n\tvar _defined = function (it) {\n\t if (it == undefined) { throw TypeError(\"Can't call method on \" + it); }\n\t return it;\n\t};\n\n\t// true -> String#at\n\t// false -> String#codePointAt\n\tvar _stringAt = function (TO_STRING) {\n\t return function (that, pos) {\n\t var s = String(_defined(that));\n\t var i = _toInteger(pos);\n\t var l = s.length;\n\t var a, b;\n\t if (i < 0 || i >= l) { return TO_STRING ? 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unicode = {\n\t\tSpace_Separator: Space_Separator,\n\t\tID_Start: ID_Start,\n\t\tID_Continue: ID_Continue\n\t};\n\n\tvar util = {\n\t isSpaceSeparator: function isSpaceSeparator (c) {\n\t return typeof c === 'string' && unicode.Space_Separator.test(c)\n\t },\n\n\t isIdStartChar: function isIdStartChar (c) {\n\t return typeof c === 'string' && (\n\t (c >= 'a' && c <= 'z') ||\n\t (c >= 'A' && c <= 'Z') ||\n\t (c === '$') || (c === '_') ||\n\t unicode.ID_Start.test(c)\n\t )\n\t },\n\n\t isIdContinueChar: function isIdContinueChar (c) {\n\t return typeof c === 'string' && (\n\t (c >= 'a' && c <= 'z') ||\n\t (c >= 'A' && c <= 'Z') ||\n\t (c >= '0' && c <= '9') ||\n\t (c === '$') || (c === '_') ||\n\t (c === '\\u200C') || (c === '\\u200D') ||\n\t unicode.ID_Continue.test(c)\n\t )\n\t },\n\n\t isDigit: function isDigit (c) {\n\t return typeof c === 'string' && /[0-9]/.test(c)\n\t },\n\n\t isHexDigit: function isHexDigit (c) {\n\t return typeof c === 'string' && /[0-9A-Fa-f]/.test(c)\n\t },\n\t};\n\n\tvar source;\n\tvar parseState;\n\tvar stack;\n\tvar pos;\n\tvar line;\n\tvar column;\n\tvar token;\n\tvar key;\n\tvar root;\n\n\tvar parse = function parse (text, reviver) {\n\t source = String(text);\n\t parseState = 'start';\n\t stack = [];\n\t pos = 0;\n\t line = 1;\n\t column = 0;\n\t token = undefined;\n\t key = undefined;\n\t root = undefined;\n\n\t do {\n\t token = lex();\n\n\t // This code is unreachable.\n\t // if (!parseStates[parseState]) {\n\t // throw invalidParseState()\n\t // }\n\n\t parseStates[parseState]();\n\t } while (token.type !== 'eof')\n\n\t if (typeof reviver === 'function') {\n\t return internalize({'': root}, '', reviver)\n\t }\n\n\t return root\n\t};\n\n\tfunction internalize (holder, name, reviver) {\n\t var value = holder[name];\n\t if (value != null && typeof value === 'object') {\n\t if (Array.isArray(value)) {\n\t for (var i = 0; i < value.length; i++) {\n\t var key = String(i);\n\t var replacement = internalize(value, key, reviver);\n\t if (replacement === undefined) {\n\t delete value[key];\n\t } else {\n\t Object.defineProperty(value, key, {\n\t value: replacement,\n\t writable: true,\n\t enumerable: true,\n\t configurable: true,\n\t });\n\t }\n\t }\n\t } else {\n\t for (var key$1 in value) {\n\t var replacement$1 = internalize(value, key$1, reviver);\n\t if (replacement$1 === undefined) {\n\t delete value[key$1];\n\t } else {\n\t Object.defineProperty(value, key$1, {\n\t value: replacement$1,\n\t writable: true,\n\t enumerable: true,\n\t configurable: true,\n\t });\n\t }\n\t }\n\t }\n\t }\n\n\t return reviver.call(holder, name, value)\n\t}\n\n\tvar lexState;\n\tvar buffer;\n\tvar doubleQuote;\n\tvar sign;\n\tvar c;\n\n\tfunction lex () {\n\t lexState = 'default';\n\t buffer = '';\n\t doubleQuote = false;\n\t sign = 1;\n\n\t for (;;) {\n\t c = peek();\n\n\t // This code is unreachable.\n\t // if (!lexStates[lexState]) {\n\t // throw invalidLexState(lexState)\n\t // }\n\n\t var token = lexStates[lexState]();\n\t if (token) {\n\t return token\n\t }\n\t }\n\t}\n\n\tfunction peek () {\n\t if (source[pos]) {\n\t return String.fromCodePoint(source.codePointAt(pos))\n\t }\n\t}\n\n\tfunction read () {\n\t var c = peek();\n\n\t if (c === '\\n') {\n\t line++;\n\t column = 0;\n\t } else if (c) {\n\t column += c.length;\n\t } else {\n\t column++;\n\t }\n\n\t if (c) {\n\t pos += c.length;\n\t }\n\n\t return c\n\t}\n\n\tvar lexStates = {\n\t default: function default$1 () {\n\t switch (c) {\n\t case '\\t':\n\t case '\\v':\n\t case '\\f':\n\t case ' ':\n\t case '\\u00A0':\n\t case '\\uFEFF':\n\t case '\\n':\n\t case '\\r':\n\t case '\\u2028':\n\t case '\\u2029':\n\t read();\n\t return\n\n\t case '/':\n\t read();\n\t lexState = 'comment';\n\t return\n\n\t case undefined:\n\t read();\n\t return newToken('eof')\n\t }\n\n\t if (util.isSpaceSeparator(c)) {\n\t read();\n\t return\n\t }\n\n\t // This code is unreachable.\n\t // if (!lexStates[parseState]) {\n\t // throw invalidLexState(parseState)\n\t // }\n\n\t return lexStates[parseState]()\n\t },\n\n\t comment: function comment () {\n\t switch (c) {\n\t case '*':\n\t read();\n\t lexState = 'multiLineComment';\n\t return\n\n\t case '/':\n\t read();\n\t lexState = 'singleLineComment';\n\t return\n\t }\n\n\t throw invalidChar(read())\n\t },\n\n\t multiLineComment: function multiLineComment () {\n\t switch (c) {\n\t case '*':\n\t read();\n\t lexState = 'multiLineCommentAsterisk';\n\t return\n\n\t case undefined:\n\t throw invalidChar(read())\n\t }\n\n\t read();\n\t },\n\n\t multiLineCommentAsterisk: function multiLineCommentAsterisk () {\n\t switch (c) {\n\t case '*':\n\t read();\n\t return\n\n\t case '/':\n\t read();\n\t lexState = 'default';\n\t return\n\n\t case undefined:\n\t throw invalidChar(read())\n\t }\n\n\t read();\n\t lexState = 'multiLineComment';\n\t },\n\n\t singleLineComment: function singleLineComment () {\n\t switch (c) {\n\t case '\\n':\n\t case '\\r':\n\t case '\\u2028':\n\t case '\\u2029':\n\t read();\n\t lexState = 'default';\n\t return\n\n\t case undefined:\n\t read();\n\t return newToken('eof')\n\t }\n\n\t read();\n\t },\n\n\t value: function value () {\n\t switch (c) {\n\t case '{':\n\t case '[':\n\t return newToken('punctuator', read())\n\n\t case 'n':\n\t read();\n\t literal('ull');\n\t return newToken('null', null)\n\n\t case 't':\n\t read();\n\t literal('rue');\n\t return newToken('boolean', true)\n\n\t case 'f':\n\t read();\n\t literal('alse');\n\t return newToken('boolean', false)\n\n\t case '-':\n\t case '+':\n\t if (read() === '-') {\n\t sign = -1;\n\t }\n\n\t lexState = 'sign';\n\t return\n\n\t case '.':\n\t buffer = read();\n\t lexState = 'decimalPointLeading';\n\t return\n\n\t case '0':\n\t buffer = read();\n\t lexState = 'zero';\n\t return\n\n\t case '1':\n\t case '2':\n\t case '3':\n\t case '4':\n\t case '5':\n\t case '6':\n\t case '7':\n\t case '8':\n\t case '9':\n\t buffer = read();\n\t lexState = 'decimalInteger';\n\t return\n\n\t case 'I':\n\t read();\n\t literal('nfinity');\n\t return newToken('numeric', Infinity)\n\n\t case 'N':\n\t read();\n\t literal('aN');\n\t return newToken('numeric', NaN)\n\n\t case '\"':\n\t case \"'\":\n\t doubleQuote = (read() === '\"');\n\t buffer = '';\n\t lexState = 'string';\n\t return\n\t }\n\n\t throw invalidChar(read())\n\t },\n\n\t identifierNameStartEscape: function identifierNameStartEscape () {\n\t if (c !== 'u') {\n\t throw invalidChar(read())\n\t }\n\n\t read();\n\t var u = unicodeEscape();\n\t switch (u) {\n\t case '$':\n\t case '_':\n\t break\n\n\t default:\n\t if (!util.isIdStartChar(u)) {\n\t throw invalidIdentifier()\n\t }\n\n\t break\n\t }\n\n\t buffer += u;\n\t lexState = 'identifierName';\n\t },\n\n\t identifierName: function identifierName () {\n\t switch (c) {\n\t case '$':\n\t case '_':\n\t case '\\u200C':\n\t case '\\u200D':\n\t buffer += read();\n\t return\n\n\t case '\\\\':\n\t read();\n\t lexState = 'identifierNameEscape';\n\t return\n\t }\n\n\t if (util.isIdContinueChar(c)) {\n\t buffer += read();\n\t return\n\t }\n\n\t return newToken('identifier', buffer)\n\t },\n\n\t identifierNameEscape: function identifierNameEscape () {\n\t if (c !== 'u') {\n\t throw invalidChar(read())\n\t }\n\n\t read();\n\t var u = unicodeEscape();\n\t switch (u) {\n\t case '$':\n\t case '_':\n\t case '\\u200C':\n\t case '\\u200D':\n\t break\n\n\t default:\n\t if (!util.isIdContinueChar(u)) {\n\t throw invalidIdentifier()\n\t }\n\n\t break\n\t }\n\n\t buffer += u;\n\t lexState = 'identifierName';\n\t },\n\n\t sign: function sign$1 () {\n\t switch (c) {\n\t case '.':\n\t buffer = read();\n\t lexState = 'decimalPointLeading';\n\t return\n\n\t case '0':\n\t buffer = read();\n\t lexState = 'zero';\n\t return\n\n\t case '1':\n\t case '2':\n\t case '3':\n\t case '4':\n\t case '5':\n\t case '6':\n\t case '7':\n\t case '8':\n\t case '9':\n\t buffer = read();\n\t lexState = 'decimalInteger';\n\t return\n\n\t case 'I':\n\t read();\n\t literal('nfinity');\n\t return newToken('numeric', sign * Infinity)\n\n\t case 'N':\n\t read();\n\t literal('aN');\n\t return newToken('numeric', NaN)\n\t }\n\n\t throw invalidChar(read())\n\t },\n\n\t zero: function zero () {\n\t switch (c) {\n\t case '.':\n\t buffer += read();\n\t lexState = 'decimalPoint';\n\t return\n\n\t case 'e':\n\t case 'E':\n\t buffer += read();\n\t lexState = 'decimalExponent';\n\t return\n\n\t case 'x':\n\t case 'X':\n\t buffer += read();\n\t lexState = 'hexadecimal';\n\t return\n\t }\n\n\t return newToken('numeric', sign * 0)\n\t },\n\n\t decimalInteger: function decimalInteger () {\n\t switch (c) {\n\t case '.':\n\t buffer += read();\n\t lexState = 'decimalPoint';\n\t return\n\n\t case 'e':\n\t case 'E':\n\t buffer += read();\n\t lexState = 'decimalExponent';\n\t return\n\t }\n\n\t if (util.isDigit(c)) {\n\t buffer += read();\n\t return\n\t }\n\n\t return newToken('numeric', sign * Number(buffer))\n\t },\n\n\t decimalPointLeading: function decimalPointLeading () {\n\t if (util.isDigit(c)) {\n\t buffer += read();\n\t lexState = 'decimalFraction';\n\t return\n\t }\n\n\t throw invalidChar(read())\n\t },\n\n\t decimalPoint: function decimalPoint () {\n\t switch (c) {\n\t case 'e':\n\t case 'E':\n\t buffer += read();\n\t lexState = 'decimalExponent';\n\t return\n\t }\n\n\t if (util.isDigit(c)) {\n\t buffer += read();\n\t lexState = 'decimalFraction';\n\t return\n\t }\n\n\t return newToken('numeric', sign * Number(buffer))\n\t },\n\n\t decimalFraction: function decimalFraction () {\n\t switch (c) {\n\t case 'e':\n\t case 'E':\n\t buffer += read();\n\t lexState = 'decimalExponent';\n\t return\n\t }\n\n\t if (util.isDigit(c)) {\n\t buffer += read();\n\t return\n\t }\n\n\t return newToken('numeric', sign * Number(buffer))\n\t },\n\n\t decimalExponent: function decimalExponent () {\n\t switch (c) {\n\t case '+':\n\t case '-':\n\t buffer += read();\n\t lexState = 'decimalExponentSign';\n\t return\n\t }\n\n\t if (util.isDigit(c)) {\n\t buffer += read();\n\t lexState = 'decimalExponentInteger';\n\t return\n\t }\n\n\t throw invalidChar(read())\n\t },\n\n\t decimalExponentSign: function decimalExponentSign () {\n\t if (util.isDigit(c)) {\n\t buffer += read();\n\t lexState = 'decimalExponentInteger';\n\t return\n\t }\n\n\t throw invalidChar(read())\n\t },\n\n\t decimalExponentInteger: function decimalExponentInteger () {\n\t if (util.isDigit(c)) {\n\t buffer += read();\n\t return\n\t }\n\n\t return newToken('numeric', sign * Number(buffer))\n\t },\n\n\t hexadecimal: function hexadecimal () {\n\t if (util.isHexDigit(c)) {\n\t buffer += read();\n\t lexState = 'hexadecimalInteger';\n\t return\n\t }\n\n\t throw invalidChar(read())\n\t },\n\n\t hexadecimalInteger: function hexadecimalInteger () {\n\t if (util.isHexDigit(c)) {\n\t buffer += read();\n\t return\n\t }\n\n\t return newToken('numeric', sign * Number(buffer))\n\t },\n\n\t string: function string () {\n\t switch (c) {\n\t case '\\\\':\n\t read();\n\t buffer += escape();\n\t return\n\n\t case '\"':\n\t if (doubleQuote) {\n\t read();\n\t return newToken('string', buffer)\n\t }\n\n\t buffer += read();\n\t return\n\n\t case \"'\":\n\t if (!doubleQuote) {\n\t read();\n\t return newToken('string', buffer)\n\t }\n\n\t buffer += read();\n\t return\n\n\t case '\\n':\n\t case '\\r':\n\t throw invalidChar(read())\n\n\t case '\\u2028':\n\t case '\\u2029':\n\t separatorChar(c);\n\t break\n\n\t case undefined:\n\t throw invalidChar(read())\n\t }\n\n\t buffer += read();\n\t },\n\n\t start: function start () {\n\t switch (c) {\n\t case '{':\n\t case '[':\n\t return newToken('punctuator', read())\n\n\t // This code is unreachable since the default lexState handles eof.\n\t // case undefined:\n\t // return newToken('eof')\n\t }\n\n\t lexState = 'value';\n\t },\n\n\t beforePropertyName: function beforePropertyName () {\n\t switch (c) {\n\t case '$':\n\t case '_':\n\t buffer = read();\n\t lexState = 'identifierName';\n\t return\n\n\t case '\\\\':\n\t read();\n\t lexState = 'identifierNameStartEscape';\n\t return\n\n\t case '}':\n\t return newToken('punctuator', read())\n\n\t case '\"':\n\t case \"'\":\n\t doubleQuote = (read() === '\"');\n\t lexState = 'string';\n\t return\n\t }\n\n\t if (util.isIdStartChar(c)) {\n\t buffer += read();\n\t lexState = 'identifierName';\n\t return\n\t }\n\n\t throw invalidChar(read())\n\t },\n\n\t afterPropertyName: function afterPropertyName () {\n\t if (c === ':') {\n\t return newToken('punctuator', read())\n\t }\n\n\t throw invalidChar(read())\n\t },\n\n\t beforePropertyValue: function beforePropertyValue () {\n\t lexState = 'value';\n\t },\n\n\t afterPropertyValue: function afterPropertyValue () {\n\t switch (c) {\n\t case ',':\n\t case '}':\n\t return newToken('punctuator', read())\n\t }\n\n\t throw invalidChar(read())\n\t },\n\n\t beforeArrayValue: function beforeArrayValue () {\n\t if (c === ']') {\n\t return newToken('punctuator', read())\n\t }\n\n\t lexState = 'value';\n\t },\n\n\t afterArrayValue: function afterArrayValue () {\n\t switch (c) {\n\t case ',':\n\t case ']':\n\t return newToken('punctuator', read())\n\t }\n\n\t throw invalidChar(read())\n\t },\n\n\t end: function end () {\n\t // This code is unreachable since it's handled by the default lexState.\n\t // if (c === undefined) {\n\t // read()\n\t // return newToken('eof')\n\t // }\n\n\t throw invalidChar(read())\n\t },\n\t};\n\n\tfunction newToken (type, value) {\n\t return {\n\t type: type,\n\t value: value,\n\t line: line,\n\t column: column,\n\t }\n\t}\n\n\tfunction literal (s) {\n\t for (var i = 0, list = s; i < list.length; i += 1) {\n\t var c = list[i];\n\n\t var p = peek();\n\n\t if (p !== c) {\n\t throw invalidChar(read())\n\t }\n\n\t read();\n\t }\n\t}\n\n\tfunction escape () {\n\t var c = peek();\n\t switch (c) {\n\t case 'b':\n\t read();\n\t return '\\b'\n\n\t case 'f':\n\t read();\n\t return '\\f'\n\n\t case 'n':\n\t read();\n\t return '\\n'\n\n\t case 'r':\n\t read();\n\t return '\\r'\n\n\t case 't':\n\t read();\n\t return '\\t'\n\n\t case 'v':\n\t read();\n\t return '\\v'\n\n\t case '0':\n\t read();\n\t if (util.isDigit(peek())) {\n\t throw invalidChar(read())\n\t }\n\n\t return '\\0'\n\n\t case 'x':\n\t read();\n\t return hexEscape()\n\n\t case 'u':\n\t read();\n\t return unicodeEscape()\n\n\t case '\\n':\n\t case '\\u2028':\n\t case '\\u2029':\n\t read();\n\t return ''\n\n\t case '\\r':\n\t read();\n\t if (peek() === '\\n') {\n\t read();\n\t }\n\n\t return ''\n\n\t case '1':\n\t case '2':\n\t case '3':\n\t case '4':\n\t case '5':\n\t case '6':\n\t case '7':\n\t case '8':\n\t case '9':\n\t throw invalidChar(read())\n\n\t case undefined:\n\t throw invalidChar(read())\n\t }\n\n\t return read()\n\t}\n\n\tfunction hexEscape () {\n\t var buffer = '';\n\t var c = peek();\n\n\t if (!util.isHexDigit(c)) {\n\t throw invalidChar(read())\n\t }\n\n\t buffer += read();\n\n\t c = peek();\n\t if (!util.isHexDigit(c)) {\n\t throw invalidChar(read())\n\t }\n\n\t buffer += read();\n\n\t return String.fromCodePoint(parseInt(buffer, 16))\n\t}\n\n\tfunction unicodeEscape () {\n\t var buffer = '';\n\t var count = 4;\n\n\t while (count-- > 0) {\n\t var c = peek();\n\t if (!util.isHexDigit(c)) {\n\t throw invalidChar(read())\n\t }\n\n\t buffer += read();\n\t }\n\n\t return String.fromCodePoint(parseInt(buffer, 16))\n\t}\n\n\tvar parseStates = {\n\t start: function start () {\n\t if (token.type === 'eof') {\n\t throw invalidEOF()\n\t }\n\n\t push();\n\t },\n\n\t beforePropertyName: function beforePropertyName () {\n\t switch (token.type) {\n\t case 'identifier':\n\t case 'string':\n\t key = token.value;\n\t parseState = 'afterPropertyName';\n\t return\n\n\t case 'punctuator':\n\t // This code is unreachable since it's handled by the lexState.\n\t // if (token.value !== '}') {\n\t // throw invalidToken()\n\t // }\n\n\t pop();\n\t return\n\n\t case 'eof':\n\t throw invalidEOF()\n\t }\n\n\t // This code is unreachable since it's handled by the lexState.\n\t // throw invalidToken()\n\t },\n\n\t afterPropertyName: function afterPropertyName () {\n\t // This code is unreachable since it's handled by the lexState.\n\t // if (token.type !== 'punctuator' || token.value !== ':') {\n\t // throw invalidToken()\n\t // }\n\n\t if (token.type === 'eof') {\n\t throw invalidEOF()\n\t }\n\n\t parseState = 'beforePropertyValue';\n\t },\n\n\t beforePropertyValue: function beforePropertyValue () {\n\t if (token.type === 'eof') {\n\t throw invalidEOF()\n\t }\n\n\t push();\n\t },\n\n\t beforeArrayValue: function beforeArrayValue () {\n\t if (token.type === 'eof') {\n\t throw invalidEOF()\n\t }\n\n\t if (token.type === 'punctuator' && token.value === ']') {\n\t pop();\n\t return\n\t }\n\n\t push();\n\t },\n\n\t afterPropertyValue: function afterPropertyValue () {\n\t // This code is unreachable since it's handled by the lexState.\n\t // if (token.type !== 'punctuator') {\n\t // throw invalidToken()\n\t // }\n\n\t if (token.type === 'eof') {\n\t throw invalidEOF()\n\t }\n\n\t switch (token.value) {\n\t case ',':\n\t parseState = 'beforePropertyName';\n\t return\n\n\t case '}':\n\t pop();\n\t }\n\n\t // This code is unreachable since it's handled by the lexState.\n\t // throw invalidToken()\n\t },\n\n\t afterArrayValue: function afterArrayValue () {\n\t // This code is unreachable since it's handled by the lexState.\n\t // if (token.type !== 'punctuator') {\n\t // throw invalidToken()\n\t // }\n\n\t if (token.type === 'eof') {\n\t throw invalidEOF()\n\t }\n\n\t switch (token.value) {\n\t case ',':\n\t parseState = 'beforeArrayValue';\n\t return\n\n\t case ']':\n\t pop();\n\t }\n\n\t // This code is unreachable since it's handled by the lexState.\n\t // throw invalidToken()\n\t },\n\n\t end: function end () {\n\t // This code is unreachable since it's handled by the lexState.\n\t // if (token.type !== 'eof') {\n\t // throw invalidToken()\n\t // }\n\t },\n\t};\n\n\tfunction push () {\n\t var value;\n\n\t switch (token.type) {\n\t case 'punctuator':\n\t switch (token.value) {\n\t case '{':\n\t value = {};\n\t break\n\n\t case '[':\n\t value = [];\n\t break\n\t }\n\n\t break\n\n\t case 'null':\n\t case 'boolean':\n\t case 'numeric':\n\t case 'string':\n\t value = token.value;\n\t break\n\n\t // This code is unreachable.\n\t // default:\n\t // throw invalidToken()\n\t }\n\n\t if (root === undefined) {\n\t root = value;\n\t } else {\n\t var parent = stack[stack.length - 1];\n\t if (Array.isArray(parent)) {\n\t parent.push(value);\n\t } else {\n\t Object.defineProperty(parent, key, {\n\t value: value,\n\t writable: true,\n\t enumerable: true,\n\t configurable: true,\n\t });\n\t }\n\t }\n\n\t if (value !== null && typeof value === 'object') {\n\t stack.push(value);\n\n\t if (Array.isArray(value)) {\n\t parseState = 'beforeArrayValue';\n\t } else {\n\t parseState = 'beforePropertyName';\n\t }\n\t } else {\n\t var current = stack[stack.length - 1];\n\t if (current == null) {\n\t parseState = 'end';\n\t } else if (Array.isArray(current)) {\n\t parseState = 'afterArrayValue';\n\t } else {\n\t parseState = 'afterPropertyValue';\n\t }\n\t }\n\t}\n\n\tfunction pop () {\n\t stack.pop();\n\n\t var current = stack[stack.length - 1];\n\t if (current == null) {\n\t parseState = 'end';\n\t } else if (Array.isArray(current)) {\n\t parseState = 'afterArrayValue';\n\t } else {\n\t parseState = 'afterPropertyValue';\n\t }\n\t}\n\n\t// This code is unreachable.\n\t// function invalidParseState () {\n\t// return new Error(`JSON5: invalid parse state '${parseState}'`)\n\t// }\n\n\t// This code is unreachable.\n\t// function invalidLexState (state) {\n\t// return new Error(`JSON5: invalid lex state '${state}'`)\n\t// }\n\n\tfunction invalidChar (c) {\n\t if (c === undefined) {\n\t return syntaxError((\"JSON5: invalid end of input at \" + line + \":\" + column))\n\t }\n\n\t return syntaxError((\"JSON5: invalid character '\" + (formatChar(c)) + \"' at \" + line + \":\" + column))\n\t}\n\n\tfunction invalidEOF () {\n\t return syntaxError((\"JSON5: invalid end of input at \" + line + \":\" + column))\n\t}\n\n\t// This code is unreachable.\n\t// function invalidToken () {\n\t// if (token.type === 'eof') {\n\t// return syntaxError(`JSON5: invalid end of input at ${line}:${column}`)\n\t// }\n\n\t// const c = String.fromCodePoint(token.value.codePointAt(0))\n\t// return syntaxError(`JSON5: invalid character '${formatChar(c)}' at ${line}:${column}`)\n\t// }\n\n\tfunction invalidIdentifier () {\n\t column -= 5;\n\t return syntaxError((\"JSON5: invalid identifier character at \" + line + \":\" + column))\n\t}\n\n\tfunction separatorChar (c) {\n\t console.warn((\"JSON5: '\" + (formatChar(c)) + \"' in strings is not valid ECMAScript; consider escaping\"));\n\t}\n\n\tfunction formatChar (c) {\n\t var replacements = {\n\t \"'\": \"\\\\'\",\n\t '\"': '\\\\\"',\n\t '\\\\': '\\\\\\\\',\n\t '\\b': '\\\\b',\n\t '\\f': '\\\\f',\n\t '\\n': '\\\\n',\n\t '\\r': '\\\\r',\n\t '\\t': '\\\\t',\n\t '\\v': '\\\\v',\n\t '\\0': '\\\\0',\n\t '\\u2028': '\\\\u2028',\n\t '\\u2029': '\\\\u2029',\n\t };\n\n\t if (replacements[c]) {\n\t return replacements[c]\n\t }\n\n\t if (c < ' ') {\n\t var hexString = c.charCodeAt(0).toString(16);\n\t return '\\\\x' + ('00' + hexString).substring(hexString.length)\n\t }\n\n\t return c\n\t}\n\n\tfunction syntaxError (message) {\n\t var err = new SyntaxError(message);\n\t err.lineNumber = line;\n\t err.columnNumber = column;\n\t return err\n\t}\n\n\tvar stringify = function stringify (value, replacer, space) {\n\t var stack = [];\n\t var indent = '';\n\t var propertyList;\n\t var replacerFunc;\n\t var gap = '';\n\t var quote;\n\n\t if (\n\t replacer != null &&\n\t typeof replacer === 'object' &&\n\t !Array.isArray(replacer)\n\t ) {\n\t space = replacer.space;\n\t quote = replacer.quote;\n\t replacer = replacer.replacer;\n\t }\n\n\t if (typeof replacer === 'function') {\n\t replacerFunc = replacer;\n\t } else if (Array.isArray(replacer)) {\n\t propertyList = [];\n\t for (var i = 0, list = replacer; i < list.length; i += 1) {\n\t var v = list[i];\n\n\t var item = (void 0);\n\n\t if (typeof v === 'string') {\n\t item = v;\n\t } else if (\n\t typeof v === 'number' ||\n\t v instanceof String ||\n\t v instanceof Number\n\t ) {\n\t item = String(v);\n\t }\n\n\t if (item !== undefined && propertyList.indexOf(item) < 0) {\n\t propertyList.push(item);\n\t }\n\t }\n\t }\n\n\t if (space instanceof Number) {\n\t space = Number(space);\n\t } else if (space instanceof String) {\n\t space = String(space);\n\t }\n\n\t if (typeof space === 'number') {\n\t if (space > 0) {\n\t space = Math.min(10, Math.floor(space));\n\t gap = ' '.substr(0, space);\n\t }\n\t } else if (typeof space === 'string') {\n\t gap = space.substr(0, 10);\n\t }\n\n\t return serializeProperty('', {'': value})\n\n\t function serializeProperty (key, holder) {\n\t var value = holder[key];\n\t if (value != null) {\n\t if (typeof value.toJSON5 === 'function') {\n\t value = value.toJSON5(key);\n\t } else if (typeof value.toJSON === 'function') {\n\t value = value.toJSON(key);\n\t }\n\t }\n\n\t if (replacerFunc) {\n\t value = replacerFunc.call(holder, key, value);\n\t }\n\n\t if (value instanceof Number) {\n\t value = Number(value);\n\t } else if (value instanceof String) {\n\t value = String(value);\n\t } else if (value instanceof Boolean) {\n\t value = value.valueOf();\n\t }\n\n\t switch (value) {\n\t case null: return 'null'\n\t case true: return 'true'\n\t case false: return 'false'\n\t }\n\n\t if (typeof value === 'string') {\n\t return quoteString(value, false)\n\t }\n\n\t if (typeof value === 'number') {\n\t return String(value)\n\t }\n\n\t if (typeof value === 'object') {\n\t return Array.isArray(value) ? serializeArray(value) : serializeObject(value)\n\t }\n\n\t return undefined\n\t }\n\n\t function quoteString (value) {\n\t var quotes = {\n\t \"'\": 0.1,\n\t '\"': 0.2,\n\t };\n\n\t var replacements = {\n\t \"'\": \"\\\\'\",\n\t '\"': '\\\\\"',\n\t '\\\\': '\\\\\\\\',\n\t '\\b': '\\\\b',\n\t '\\f': '\\\\f',\n\t '\\n': '\\\\n',\n\t '\\r': '\\\\r',\n\t '\\t': '\\\\t',\n\t '\\v': '\\\\v',\n\t '\\0': '\\\\0',\n\t '\\u2028': '\\\\u2028',\n\t '\\u2029': '\\\\u2029',\n\t };\n\n\t var product = '';\n\n\t for (var i = 0; i < value.length; i++) {\n\t var c = value[i];\n\t switch (c) {\n\t case \"'\":\n\t case '\"':\n\t quotes[c]++;\n\t product += c;\n\t continue\n\n\t case '\\0':\n\t if (util.isDigit(value[i + 1])) {\n\t product += '\\\\x00';\n\t continue\n\t }\n\t }\n\n\t if (replacements[c]) {\n\t product += replacements[c];\n\t continue\n\t }\n\n\t if (c < ' ') {\n\t var hexString = c.charCodeAt(0).toString(16);\n\t product += '\\\\x' + ('00' + hexString).substring(hexString.length);\n\t continue\n\t }\n\n\t product += c;\n\t }\n\n\t var quoteChar = quote || Object.keys(quotes).reduce(function (a, b) { return (quotes[a] < quotes[b]) ? a : b; });\n\n\t product = product.replace(new RegExp(quoteChar, 'g'), replacements[quoteChar]);\n\n\t return quoteChar + product + quoteChar\n\t }\n\n\t function serializeObject (value) {\n\t if (stack.indexOf(value) >= 0) {\n\t throw TypeError('Converting circular structure to JSON5')\n\t }\n\n\t stack.push(value);\n\n\t var stepback = indent;\n\t indent = indent + gap;\n\n\t var keys = propertyList || Object.keys(value);\n\t var partial = [];\n\t for (var i = 0, list = keys; i < list.length; i += 1) {\n\t var key = list[i];\n\n\t var propertyString = serializeProperty(key, value);\n\t if (propertyString !== undefined) {\n\t var member = serializeKey(key) + ':';\n\t if (gap !== '') {\n\t member += ' ';\n\t }\n\t member += propertyString;\n\t partial.push(member);\n\t }\n\t }\n\n\t var final;\n\t if (partial.length === 0) {\n\t final = '{}';\n\t } else {\n\t var properties;\n\t if (gap === '') {\n\t properties = partial.join(',');\n\t final = '{' + properties + '}';\n\t } else {\n\t var separator = ',\\n' + indent;\n\t properties = partial.join(separator);\n\t final = '{\\n' + indent + properties + ',\\n' + stepback + '}';\n\t }\n\t }\n\n\t stack.pop();\n\t indent = stepback;\n\t return final\n\t }\n\n\t function serializeKey (key) {\n\t if (key.length === 0) {\n\t return quoteString(key, true)\n\t }\n\n\t var firstChar = String.fromCodePoint(key.codePointAt(0));\n\t if (!util.isIdStartChar(firstChar)) {\n\t return quoteString(key, true)\n\t }\n\n\t for (var i = firstChar.length; i < key.length; i++) {\n\t if (!util.isIdContinueChar(String.fromCodePoint(key.codePointAt(i)))) {\n\t return quoteString(key, true)\n\t }\n\t }\n\n\t return key\n\t }\n\n\t function serializeArray (value) {\n\t if (stack.indexOf(value) >= 0) {\n\t throw TypeError('Converting circular structure to JSON5')\n\t }\n\n\t stack.push(value);\n\n\t var stepback = indent;\n\t indent = indent + gap;\n\n\t var partial = [];\n\t for (var i = 0; i < value.length; i++) {\n\t var propertyString = serializeProperty(String(i), value);\n\t partial.push((propertyString !== undefined) ? propertyString : 'null');\n\t }\n\n\t var final;\n\t if (partial.length === 0) {\n\t final = '[]';\n\t } else {\n\t if (gap === '') {\n\t var properties = partial.join(',');\n\t final = '[' + properties + ']';\n\t } else {\n\t var separator = ',\\n' + indent;\n\t var properties$1 = partial.join(separator);\n\t final = '[\\n' + indent + properties$1 + ',\\n' + stepback + ']';\n\t }\n\t }\n\n\t stack.pop();\n\t indent = stepback;\n\t return final\n\t }\n\t};\n\n\tvar JSON5 = {\n\t parse: parse,\n\t stringify: stringify,\n\t};\n\n\tvar lib = JSON5;\n\n\tvar es5 = lib;\n\n\treturn es5;\n\n})));\n","(function (global, factory) {\n typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :\n typeof define === 'function' && define.amd ? define(factory) :\n (global.memoryStorageDriver = factory());\n}(this, function () { 'use strict';\n\n function getSerializerPromise(localForageInstance) {\n if (getSerializerPromise.result) {\n return getSerializerPromise.result;\n }\n if (!localForageInstance || typeof localForageInstance.getSerializer !== 'function') {\n Promise.reject(new Error('localforage.getSerializer() was not available! ' + 'localforage v1.4+ is required!'));\n }\n getSerializerPromise.result = localForageInstance.getSerializer();\n return getSerializerPromise.result;\n }\n\n function executeCallback(promise, callback) {\n if (callback) {\n promise.then(function (result) {\n callback(null, result);\n }, function (error) {\n callback(error);\n });\n }\n }\n\n var storageRepository = {};\n\n // Config the localStorage backend, using options set in the config.\n function _initStorage(options) {\n var self = this;\n\n var dbInfo = {};\n if (options) {\n for (var i in options) {\n dbInfo[i] = options[i];\n }\n }\n\n var database = storageRepository[dbInfo.name] = storageRepository[dbInfo.name] || {};\n var table = database[dbInfo.storeName] = database[dbInfo.storeName] || {};\n dbInfo.db = table;\n\n self._dbInfo = dbInfo;\n\n return getSerializerPromise(self).then(function (serializer) {\n dbInfo.serializer = serializer;\n });\n }\n\n function clear(callback) {\n var self = this;\n var promise = self.ready().then(function () {\n var db = self._dbInfo.db;\n\n for (var key in db) {\n if (db.hasOwnProperty(key)) {\n delete db[key];\n }\n }\n });\n\n executeCallback(promise, callback);\n return promise;\n }\n\n function getItem(key, callback) {\n var self = this;\n\n // Cast the key to a string, as that's all we can set as a key.\n if (typeof key !== 'string') {\n console.warn(key + ' used as a key, but it is not a string.');\n key = String(key);\n }\n\n var promise = self.ready().then(function () {\n var db = self._dbInfo.db;\n var result = db[key];\n\n if (result) {\n result = self._dbInfo.serializer.deserialize(result);\n }\n\n return result;\n });\n\n executeCallback(promise, callback);\n return promise;\n }\n\n function iterate(iterator, callback) {\n var self = this;\n\n var promise = self.ready().then(function () {\n var db = self._dbInfo.db;\n\n var iterationNumber = 1;\n for (var key in db) {\n if (db.hasOwnProperty(key)) {\n var value = db[key];\n\n if (value) {\n value = self._dbInfo.serializer.deserialize(value);\n }\n\n value = iterator(value, key, iterationNumber++);\n\n if (value !== void 0) {\n return value;\n }\n }\n }\n });\n\n executeCallback(promise, callback);\n return promise;\n }\n\n function key(n, callback) {\n var self = this;\n var promise = self.ready().then(function () {\n var db = self._dbInfo.db;\n var result = null;\n var index = 0;\n\n for (var key in db) {\n if (db.hasOwnProperty(key)) {\n if (n === index) {\n result = key;\n break;\n }\n index++;\n }\n }\n\n return result;\n });\n\n executeCallback(promise, callback);\n return promise;\n }\n\n function keys(callback) {\n var self = this;\n var promise = self.ready().then(function () {\n var db = self._dbInfo.db;\n var keys = [];\n\n for (var key in db) {\n if (db.hasOwnProperty(key)) {\n keys.push(key);\n }\n }\n\n return keys;\n });\n\n executeCallback(promise, callback);\n return promise;\n }\n\n function length(callback) {\n var self = this;\n var promise = self.keys().then(function (keys) {\n return keys.length;\n });\n\n executeCallback(promise, callback);\n return promise;\n }\n\n function removeItem(key, callback) {\n var self = this;\n\n // Cast the key to a string, as that's all we can set as a key.\n if (typeof key !== 'string') {\n console.warn(key + ' used as a key, but it is not a string.');\n key = String(key);\n }\n\n var promise = self.ready().then(function () {\n var db = self._dbInfo.db;\n if (db.hasOwnProperty(key)) {\n delete db[key];\n }\n });\n\n executeCallback(promise, callback);\n return promise;\n }\n\n function setItem(key, value, callback) {\n var self = this;\n\n // Cast the key to a string, as that's all we can set as a key.\n if (typeof key !== 'string') {\n console.warn(key + ' used as a key, but it is not a string.');\n key = String(key);\n }\n\n var promise = self.ready().then(function () {\n // Convert undefined values to null.\n // https://github.com/mozilla/localForage/pull/42\n if (value === undefined) {\n value = null;\n }\n\n // Save the original value to pass to the callback.\n var originalValue = value;\n\n function serializeAsync(value) {\n return new Promise(function (resolve, reject) {\n self._dbInfo.serializer.serialize(value, function (value, error) {\n if (error) {\n reject(error);\n } else {\n resolve(value);\n }\n });\n });\n }\n\n return serializeAsync(value).then(function (value) {\n var db = self._dbInfo.db;\n db[key] = value;\n return originalValue;\n });\n });\n\n executeCallback(promise, callback);\n return promise;\n }\n\n var memoryStorageDriver = {\n _driver: 'memoryStorageDriver',\n _initStorage: _initStorage,\n // _supports: function() { return true; }\n iterate: iterate,\n getItem: getItem,\n setItem: setItem,\n removeItem: removeItem,\n clear: clear,\n length: length,\n key: key,\n keys: keys\n };\n\n return memoryStorageDriver;\n\n}));","/*!\n localForage -- Offline Storage, Improved\n Version 1.10.0\n https://localforage.github.io/localForage\n (c) 2013-2017 Mozilla, Apache License 2.0\n*/\n(function(f){if(typeof exports===\"object\"&&typeof module!==\"undefined\"){module.exports=f()}else if(typeof define===\"function\"&&define.amd){define([],f)}else{var g;if(typeof window!==\"undefined\"){g=window}else if(typeof global!==\"undefined\"){g=global}else if(typeof self!==\"undefined\"){g=self}else{g=this}g.localforage = f()}})(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require==\"function\"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error(\"Cannot find module '\"+o+\"'\");throw (f.code=\"MODULE_NOT_FOUND\", f)}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require==\"function\"&&require;for(var o=0;o element; its readystatechange event will be fired asynchronously once it is inserted\n // into the document. Do so, thus queuing up the task. Remember to clean up once it's been called.\n var scriptEl = global.document.createElement('script');\n scriptEl.onreadystatechange = function () {\n nextTick();\n\n scriptEl.onreadystatechange = null;\n scriptEl.parentNode.removeChild(scriptEl);\n scriptEl = null;\n };\n global.document.documentElement.appendChild(scriptEl);\n };\n } else {\n scheduleDrain = function () {\n setTimeout(nextTick, 0);\n };\n }\n}\n\nvar draining;\nvar queue = [];\n//named nextTick for less confusing stack traces\nfunction nextTick() {\n draining = true;\n var i, oldQueue;\n var len = queue.length;\n while (len) {\n oldQueue = queue;\n queue = [];\n i = -1;\n while (++i < len) {\n oldQueue[i]();\n }\n len = queue.length;\n }\n draining = false;\n}\n\nmodule.exports = immediate;\nfunction immediate(task) {\n if (queue.push(task) === 1 && !draining) {\n scheduleDrain();\n }\n}\n\n}).call(this,typeof global !== \"undefined\" ? global : typeof self !== \"undefined\" ? self : typeof window !== \"undefined\" ? window : {})\n},{}],2:[function(_dereq_,module,exports){\n'use strict';\nvar immediate = _dereq_(1);\n\n/* istanbul ignore next */\nfunction INTERNAL() {}\n\nvar handlers = {};\n\nvar REJECTED = ['REJECTED'];\nvar FULFILLED = ['FULFILLED'];\nvar PENDING = ['PENDING'];\n\nmodule.exports = Promise;\n\nfunction Promise(resolver) {\n if (typeof resolver !== 'function') {\n throw new TypeError('resolver must be a function');\n }\n this.state = PENDING;\n this.queue = [];\n this.outcome = void 0;\n if (resolver !== INTERNAL) {\n safelyResolveThenable(this, resolver);\n }\n}\n\nPromise.prototype[\"catch\"] = function (onRejected) {\n return this.then(null, onRejected);\n};\nPromise.prototype.then = function (onFulfilled, onRejected) {\n if (typeof onFulfilled !== 'function' && this.state === FULFILLED ||\n typeof onRejected !== 'function' && this.state === REJECTED) {\n return this;\n }\n var promise = new this.constructor(INTERNAL);\n if (this.state !== PENDING) {\n var resolver = this.state === FULFILLED ? onFulfilled : onRejected;\n unwrap(promise, resolver, this.outcome);\n } else {\n this.queue.push(new QueueItem(promise, onFulfilled, onRejected));\n }\n\n return promise;\n};\nfunction QueueItem(promise, onFulfilled, onRejected) {\n this.promise = promise;\n if (typeof onFulfilled === 'function') {\n this.onFulfilled = onFulfilled;\n this.callFulfilled = this.otherCallFulfilled;\n }\n if (typeof onRejected === 'function') {\n this.onRejected = onRejected;\n this.callRejected = this.otherCallRejected;\n }\n}\nQueueItem.prototype.callFulfilled = function (value) {\n handlers.resolve(this.promise, value);\n};\nQueueItem.prototype.otherCallFulfilled = function (value) {\n unwrap(this.promise, this.onFulfilled, value);\n};\nQueueItem.prototype.callRejected = function (value) {\n handlers.reject(this.promise, value);\n};\nQueueItem.prototype.otherCallRejected = function (value) {\n unwrap(this.promise, this.onRejected, value);\n};\n\nfunction unwrap(promise, func, value) {\n immediate(function () {\n var returnValue;\n try {\n returnValue = func(value);\n } catch (e) {\n return handlers.reject(promise, e);\n }\n if (returnValue === promise) {\n handlers.reject(promise, new TypeError('Cannot resolve promise with itself'));\n } else {\n handlers.resolve(promise, returnValue);\n }\n });\n}\n\nhandlers.resolve = function (self, value) {\n var result = tryCatch(getThen, value);\n if (result.status === 'error') {\n return handlers.reject(self, result.value);\n }\n var thenable = result.value;\n\n if (thenable) {\n safelyResolveThenable(self, thenable);\n } else {\n self.state = FULFILLED;\n self.outcome = value;\n var i = -1;\n var len = self.queue.length;\n while (++i < len) {\n self.queue[i].callFulfilled(value);\n }\n }\n return self;\n};\nhandlers.reject = function (self, error) {\n self.state = REJECTED;\n self.outcome = error;\n var i = -1;\n var len = self.queue.length;\n while (++i < len) {\n self.queue[i].callRejected(error);\n }\n return self;\n};\n\nfunction getThen(obj) {\n // Make sure we only access the accessor once as required by the spec\n var then = obj && obj.then;\n if (obj && (typeof obj === 'object' || typeof obj === 'function') && typeof then === 'function') {\n return function appyThen() {\n then.apply(obj, arguments);\n };\n }\n}\n\nfunction safelyResolveThenable(self, thenable) {\n // Either fulfill, reject or reject with error\n var called = false;\n function onError(value) {\n if (called) {\n return;\n }\n called = true;\n handlers.reject(self, value);\n }\n\n function onSuccess(value) {\n if (called) {\n return;\n }\n called = true;\n handlers.resolve(self, value);\n }\n\n function tryToUnwrap() {\n thenable(onSuccess, onError);\n }\n\n var result = tryCatch(tryToUnwrap);\n if (result.status === 'error') {\n onError(result.value);\n }\n}\n\nfunction tryCatch(func, value) {\n var out = {};\n try {\n out.value = func(value);\n out.status = 'success';\n } catch (e) {\n out.status = 'error';\n out.value = e;\n }\n return out;\n}\n\nPromise.resolve = resolve;\nfunction resolve(value) {\n if (value instanceof this) {\n return value;\n }\n return handlers.resolve(new this(INTERNAL), value);\n}\n\nPromise.reject = reject;\nfunction reject(reason) {\n var promise = new this(INTERNAL);\n return handlers.reject(promise, reason);\n}\n\nPromise.all = all;\nfunction all(iterable) {\n var self = this;\n if (Object.prototype.toString.call(iterable) !== '[object Array]') {\n return this.reject(new TypeError('must be an array'));\n }\n\n var len = iterable.length;\n var called = false;\n if (!len) {\n return this.resolve([]);\n }\n\n var values = new Array(len);\n var resolved = 0;\n var i = -1;\n var promise = new this(INTERNAL);\n\n while (++i < len) {\n allResolver(iterable[i], i);\n }\n return promise;\n function allResolver(value, i) {\n self.resolve(value).then(resolveFromAll, function (error) {\n if (!called) {\n called = true;\n handlers.reject(promise, error);\n }\n });\n function resolveFromAll(outValue) {\n values[i] = outValue;\n if (++resolved === len && !called) {\n called = true;\n handlers.resolve(promise, values);\n }\n }\n }\n}\n\nPromise.race = race;\nfunction race(iterable) {\n var self = this;\n if (Object.prototype.toString.call(iterable) !== '[object Array]') {\n return this.reject(new TypeError('must be an array'));\n }\n\n var len = iterable.length;\n var called = false;\n if (!len) {\n return this.resolve([]);\n }\n\n var i = -1;\n var promise = new this(INTERNAL);\n\n while (++i < len) {\n resolver(iterable[i]);\n }\n return promise;\n function resolver(value) {\n self.resolve(value).then(function (response) {\n if (!called) {\n called = true;\n handlers.resolve(promise, response);\n }\n }, function (error) {\n if (!called) {\n called = true;\n handlers.reject(promise, error);\n }\n });\n }\n}\n\n},{\"1\":1}],3:[function(_dereq_,module,exports){\n(function (global){\n'use strict';\nif (typeof global.Promise !== 'function') {\n global.Promise = _dereq_(2);\n}\n\n}).call(this,typeof global !== \"undefined\" ? global : typeof self !== \"undefined\" ? self : typeof window !== \"undefined\" ? window : {})\n},{\"2\":2}],4:[function(_dereq_,module,exports){\n'use strict';\n\nvar _typeof = typeof Symbol === \"function\" && typeof Symbol.iterator === \"symbol\" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === \"function\" && obj.constructor === Symbol && obj !== Symbol.prototype ? \"symbol\" : typeof obj; };\n\nfunction _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError(\"Cannot call a class as a function\"); } }\n\nfunction getIDB() {\n /* global indexedDB,webkitIndexedDB,mozIndexedDB,OIndexedDB,msIndexedDB */\n try {\n if (typeof indexedDB !== 'undefined') {\n return indexedDB;\n }\n if (typeof webkitIndexedDB !== 'undefined') {\n return webkitIndexedDB;\n }\n if (typeof mozIndexedDB !== 'undefined') {\n return mozIndexedDB;\n }\n if (typeof OIndexedDB !== 'undefined') {\n return OIndexedDB;\n }\n if (typeof msIndexedDB !== 'undefined') {\n return msIndexedDB;\n }\n } catch (e) {\n return;\n }\n}\n\nvar idb = getIDB();\n\nfunction isIndexedDBValid() {\n try {\n // Initialize IndexedDB; fall back to vendor-prefixed versions\n // if needed.\n if (!idb || !idb.open) {\n return false;\n }\n // We mimic PouchDB here;\n //\n // We test for openDatabase because IE Mobile identifies itself\n // as Safari. Oh the lulz...\n var isSafari = typeof openDatabase !== 'undefined' && /(Safari|iPhone|iPad|iPod)/.test(navigator.userAgent) && !/Chrome/.test(navigator.userAgent) && !/BlackBerry/.test(navigator.platform);\n\n var hasFetch = typeof fetch === 'function' && fetch.toString().indexOf('[native code') !== -1;\n\n // Safari <10.1 does not meet our requirements for IDB support\n // (see: https://github.com/pouchdb/pouchdb/issues/5572).\n // Safari 10.1 shipped with fetch, we can use that to detect it.\n // Note: this creates issues with `window.fetch` polyfills and\n // overrides; see:\n // https://github.com/localForage/localForage/issues/856\n return (!isSafari || hasFetch) && typeof indexedDB !== 'undefined' &&\n // some outdated implementations of IDB that appear on Samsung\n // and HTC Android devices <4.4 are missing IDBKeyRange\n // See: https://github.com/mozilla/localForage/issues/128\n // See: https://github.com/mozilla/localForage/issues/272\n typeof IDBKeyRange !== 'undefined';\n } catch (e) {\n return false;\n }\n}\n\n// Abstracts constructing a Blob object, so it also works in older\n// browsers that don't support the native Blob constructor. (i.e.\n// old QtWebKit versions, at least).\n// Abstracts constructing a Blob object, so it also works in older\n// browsers that don't support the native Blob constructor. (i.e.\n// old QtWebKit versions, at least).\nfunction createBlob(parts, properties) {\n /* global BlobBuilder,MSBlobBuilder,MozBlobBuilder,WebKitBlobBuilder */\n parts = parts || [];\n properties = properties || {};\n try {\n return new Blob(parts, properties);\n } catch (e) {\n if (e.name !== 'TypeError') {\n throw e;\n }\n var Builder = typeof BlobBuilder !== 'undefined' ? BlobBuilder : typeof MSBlobBuilder !== 'undefined' ? MSBlobBuilder : typeof MozBlobBuilder !== 'undefined' ? MozBlobBuilder : WebKitBlobBuilder;\n var builder = new Builder();\n for (var i = 0; i < parts.length; i += 1) {\n builder.append(parts[i]);\n }\n return builder.getBlob(properties.type);\n }\n}\n\n// This is CommonJS because lie is an external dependency, so Rollup\n// can just ignore it.\nif (typeof Promise === 'undefined') {\n // In the \"nopromises\" build this will just throw if you don't have\n // a global promise object, but it would throw anyway later.\n _dereq_(3);\n}\nvar Promise$1 = Promise;\n\nfunction executeCallback(promise, callback) {\n if (callback) {\n promise.then(function (result) {\n callback(null, result);\n }, function (error) {\n callback(error);\n });\n }\n}\n\nfunction executeTwoCallbacks(promise, callback, errorCallback) {\n if (typeof callback === 'function') {\n promise.then(callback);\n }\n\n if (typeof errorCallback === 'function') {\n promise[\"catch\"](errorCallback);\n }\n}\n\nfunction normalizeKey(key) {\n // Cast the key to a string, as that's all we can set as a key.\n if (typeof key !== 'string') {\n console.warn(key + ' used as a key, but it is not a string.');\n key = String(key);\n }\n\n return key;\n}\n\nfunction getCallback() {\n if (arguments.length && typeof arguments[arguments.length - 1] === 'function') {\n return arguments[arguments.length - 1];\n }\n}\n\n// Some code originally from async_storage.js in\n// [Gaia](https://github.com/mozilla-b2g/gaia).\n\nvar DETECT_BLOB_SUPPORT_STORE = 'local-forage-detect-blob-support';\nvar supportsBlobs = void 0;\nvar dbContexts = {};\nvar toString = Object.prototype.toString;\n\n// Transaction Modes\nvar READ_ONLY = 'readonly';\nvar READ_WRITE = 'readwrite';\n\n// Transform a binary string to an array buffer, because otherwise\n// weird stuff happens when you try to work with the binary string directly.\n// It is known.\n// From http://stackoverflow.com/questions/14967647/ (continues on next line)\n// encode-decode-image-with-base64-breaks-image (2013-04-21)\nfunction _binStringToArrayBuffer(bin) {\n var length = bin.length;\n var buf = new ArrayBuffer(length);\n var arr = new Uint8Array(buf);\n for (var i = 0; i < length; i++) {\n arr[i] = bin.charCodeAt(i);\n }\n return buf;\n}\n\n//\n// Blobs are not supported in all versions of IndexedDB, notably\n// Chrome <37 and Android <5. In those versions, storing a blob will throw.\n//\n// Various other blob bugs exist in Chrome v37-42 (inclusive).\n// Detecting them is expensive and confusing to users, and Chrome 37-42\n// is at very low usage worldwide, so we do a hacky userAgent check instead.\n//\n// content-type bug: https://code.google.com/p/chromium/issues/detail?id=408120\n// 404 bug: https://code.google.com/p/chromium/issues/detail?id=447916\n// FileReader bug: https://code.google.com/p/chromium/issues/detail?id=447836\n//\n// Code borrowed from PouchDB. See:\n// https://github.com/pouchdb/pouchdb/blob/master/packages/node_modules/pouchdb-adapter-idb/src/blobSupport.js\n//\nfunction _checkBlobSupportWithoutCaching(idb) {\n return new Promise$1(function (resolve) {\n var txn = idb.transaction(DETECT_BLOB_SUPPORT_STORE, READ_WRITE);\n var blob = createBlob(['']);\n txn.objectStore(DETECT_BLOB_SUPPORT_STORE).put(blob, 'key');\n\n txn.onabort = function (e) {\n // If the transaction aborts now its due to not being able to\n // write to the database, likely due to the disk being full\n e.preventDefault();\n e.stopPropagation();\n resolve(false);\n };\n\n txn.oncomplete = function () {\n var matchedChrome = navigator.userAgent.match(/Chrome\\/(\\d+)/);\n var matchedEdge = navigator.userAgent.match(/Edge\\//);\n // MS Edge pretends to be Chrome 42:\n // https://msdn.microsoft.com/en-us/library/hh869301%28v=vs.85%29.aspx\n resolve(matchedEdge || !matchedChrome || parseInt(matchedChrome[1], 10) >= 43);\n };\n })[\"catch\"](function () {\n return false; // error, so assume unsupported\n });\n}\n\nfunction _checkBlobSupport(idb) {\n if (typeof supportsBlobs === 'boolean') {\n return Promise$1.resolve(supportsBlobs);\n }\n return _checkBlobSupportWithoutCaching(idb).then(function (value) {\n supportsBlobs = value;\n return supportsBlobs;\n });\n}\n\nfunction _deferReadiness(dbInfo) {\n var dbContext = dbContexts[dbInfo.name];\n\n // Create a deferred object representing the current database operation.\n var deferredOperation = {};\n\n deferredOperation.promise = new Promise$1(function (resolve, reject) {\n deferredOperation.resolve = resolve;\n deferredOperation.reject = reject;\n });\n\n // Enqueue the deferred operation.\n dbContext.deferredOperations.push(deferredOperation);\n\n // Chain its promise to the database readiness.\n if (!dbContext.dbReady) {\n dbContext.dbReady = deferredOperation.promise;\n } else {\n dbContext.dbReady = dbContext.dbReady.then(function () {\n return deferredOperation.promise;\n });\n }\n}\n\nfunction _advanceReadiness(dbInfo) {\n var dbContext = dbContexts[dbInfo.name];\n\n // Dequeue a deferred operation.\n var deferredOperation = dbContext.deferredOperations.pop();\n\n // Resolve its promise (which is part of the database readiness\n // chain of promises).\n if (deferredOperation) {\n deferredOperation.resolve();\n return deferredOperation.promise;\n }\n}\n\nfunction _rejectReadiness(dbInfo, err) {\n var dbContext = dbContexts[dbInfo.name];\n\n // Dequeue a deferred operation.\n var deferredOperation = dbContext.deferredOperations.pop();\n\n // Reject its promise (which is part of the database readiness\n // chain of promises).\n if (deferredOperation) {\n deferredOperation.reject(err);\n return deferredOperation.promise;\n }\n}\n\nfunction _getConnection(dbInfo, upgradeNeeded) {\n return new Promise$1(function (resolve, reject) {\n dbContexts[dbInfo.name] = dbContexts[dbInfo.name] || createDbContext();\n\n if (dbInfo.db) {\n if (upgradeNeeded) {\n _deferReadiness(dbInfo);\n dbInfo.db.close();\n } else {\n return resolve(dbInfo.db);\n }\n }\n\n var dbArgs = [dbInfo.name];\n\n if (upgradeNeeded) {\n dbArgs.push(dbInfo.version);\n }\n\n var openreq = idb.open.apply(idb, dbArgs);\n\n if (upgradeNeeded) {\n openreq.onupgradeneeded = function (e) {\n var db = openreq.result;\n try {\n db.createObjectStore(dbInfo.storeName);\n if (e.oldVersion <= 1) {\n // Added when support for blob shims was added\n db.createObjectStore(DETECT_BLOB_SUPPORT_STORE);\n }\n } catch (ex) {\n if (ex.name === 'ConstraintError') {\n console.warn('The database \"' + dbInfo.name + '\"' + ' has been upgraded from version ' + e.oldVersion + ' to version ' + e.newVersion + ', but the storage \"' + dbInfo.storeName + '\" already exists.');\n } else {\n throw ex;\n }\n }\n };\n }\n\n openreq.onerror = function (e) {\n e.preventDefault();\n reject(openreq.error);\n };\n\n openreq.onsuccess = function () {\n var db = openreq.result;\n db.onversionchange = function (e) {\n // Triggered when the database is modified (e.g. adding an objectStore) or\n // deleted (even when initiated by other sessions in different tabs).\n // Closing the connection here prevents those operations from being blocked.\n // If the database is accessed again later by this instance, the connection\n // will be reopened or the database recreated as needed.\n e.target.close();\n };\n resolve(db);\n _advanceReadiness(dbInfo);\n };\n });\n}\n\nfunction _getOriginalConnection(dbInfo) {\n return _getConnection(dbInfo, false);\n}\n\nfunction _getUpgradedConnection(dbInfo) {\n return _getConnection(dbInfo, true);\n}\n\nfunction _isUpgradeNeeded(dbInfo, defaultVersion) {\n if (!dbInfo.db) {\n return true;\n }\n\n var isNewStore = !dbInfo.db.objectStoreNames.contains(dbInfo.storeName);\n var isDowngrade = dbInfo.version < dbInfo.db.version;\n var isUpgrade = dbInfo.version > dbInfo.db.version;\n\n if (isDowngrade) {\n // If the version is not the default one\n // then warn for impossible downgrade.\n if (dbInfo.version !== defaultVersion) {\n console.warn('The database \"' + dbInfo.name + '\"' + \" can't be downgraded from version \" + dbInfo.db.version + ' to version ' + dbInfo.version + '.');\n }\n // Align the versions to prevent errors.\n dbInfo.version = dbInfo.db.version;\n }\n\n if (isUpgrade || isNewStore) {\n // If the store is new then increment the version (if needed).\n // This will trigger an \"upgradeneeded\" event which is required\n // for creating a store.\n if (isNewStore) {\n var incVersion = dbInfo.db.version + 1;\n if (incVersion > dbInfo.version) {\n dbInfo.version = incVersion;\n }\n }\n\n return true;\n }\n\n return false;\n}\n\n// encode a blob for indexeddb engines that don't support blobs\nfunction _encodeBlob(blob) {\n return new Promise$1(function (resolve, reject) {\n var reader = new FileReader();\n reader.onerror = reject;\n reader.onloadend = function (e) {\n var base64 = btoa(e.target.result || '');\n resolve({\n __local_forage_encoded_blob: true,\n data: base64,\n type: blob.type\n });\n };\n reader.readAsBinaryString(blob);\n });\n}\n\n// decode an encoded blob\nfunction _decodeBlob(encodedBlob) {\n var arrayBuff = _binStringToArrayBuffer(atob(encodedBlob.data));\n return createBlob([arrayBuff], { type: encodedBlob.type });\n}\n\n// is this one of our fancy encoded blobs?\nfunction _isEncodedBlob(value) {\n return value && value.__local_forage_encoded_blob;\n}\n\n// Specialize the default `ready()` function by making it dependent\n// on the current database operations. Thus, the driver will be actually\n// ready when it's been initialized (default) *and* there are no pending\n// operations on the database (initiated by some other instances).\nfunction _fullyReady(callback) {\n var self = this;\n\n var promise = self._initReady().then(function () {\n var dbContext = dbContexts[self._dbInfo.name];\n\n if (dbContext && dbContext.dbReady) {\n return dbContext.dbReady;\n }\n });\n\n executeTwoCallbacks(promise, callback, callback);\n return promise;\n}\n\n// Try to establish a new db connection to replace the\n// current one which is broken (i.e. experiencing\n// InvalidStateError while creating a transaction).\nfunction _tryReconnect(dbInfo) {\n _deferReadiness(dbInfo);\n\n var dbContext = dbContexts[dbInfo.name];\n var forages = dbContext.forages;\n\n for (var i = 0; i < forages.length; i++) {\n var forage = forages[i];\n if (forage._dbInfo.db) {\n forage._dbInfo.db.close();\n forage._dbInfo.db = null;\n }\n }\n dbInfo.db = null;\n\n return _getOriginalConnection(dbInfo).then(function (db) {\n dbInfo.db = db;\n if (_isUpgradeNeeded(dbInfo)) {\n // Reopen the database for upgrading.\n return _getUpgradedConnection(dbInfo);\n }\n return db;\n }).then(function (db) {\n // store the latest db reference\n // in case the db was upgraded\n dbInfo.db = dbContext.db = db;\n for (var i = 0; i < forages.length; i++) {\n forages[i]._dbInfo.db = db;\n }\n })[\"catch\"](function (err) {\n _rejectReadiness(dbInfo, err);\n throw err;\n });\n}\n\n// FF doesn't like Promises (micro-tasks) and IDDB store operations,\n// so we have to do it with callbacks\nfunction createTransaction(dbInfo, mode, callback, retries) {\n if (retries === undefined) {\n retries = 1;\n }\n\n try {\n var tx = dbInfo.db.transaction(dbInfo.storeName, mode);\n callback(null, tx);\n } catch (err) {\n if (retries > 0 && (!dbInfo.db || err.name === 'InvalidStateError' || err.name === 'NotFoundError')) {\n return Promise$1.resolve().then(function () {\n if (!dbInfo.db || err.name === 'NotFoundError' && !dbInfo.db.objectStoreNames.contains(dbInfo.storeName) && dbInfo.version <= dbInfo.db.version) {\n // increase the db version, to create the new ObjectStore\n if (dbInfo.db) {\n dbInfo.version = dbInfo.db.version + 1;\n }\n // Reopen the database for upgrading.\n return _getUpgradedConnection(dbInfo);\n }\n }).then(function () {\n return _tryReconnect(dbInfo).then(function () {\n createTransaction(dbInfo, mode, callback, retries - 1);\n });\n })[\"catch\"](callback);\n }\n\n callback(err);\n }\n}\n\nfunction createDbContext() {\n return {\n // Running localForages sharing a database.\n forages: [],\n // Shared database.\n db: null,\n // Database readiness (promise).\n dbReady: null,\n // Deferred operations on the database.\n deferredOperations: []\n };\n}\n\n// Open the IndexedDB database (automatically creates one if one didn't\n// previously exist), using any options set in the config.\nfunction _initStorage(options) {\n var self = this;\n var dbInfo = {\n db: null\n };\n\n if (options) {\n for (var i in options) {\n dbInfo[i] = options[i];\n }\n }\n\n // Get the current context of the database;\n var dbContext = dbContexts[dbInfo.name];\n\n // ...or create a new context.\n if (!dbContext) {\n dbContext = createDbContext();\n // Register the new context in the global container.\n dbContexts[dbInfo.name] = dbContext;\n }\n\n // Register itself as a running localForage in the current context.\n dbContext.forages.push(self);\n\n // Replace the default `ready()` function with the specialized one.\n if (!self._initReady) {\n self._initReady = self.ready;\n self.ready = _fullyReady;\n }\n\n // Create an array of initialization states of the related localForages.\n var initPromises = [];\n\n function ignoreErrors() {\n // Don't handle errors here,\n // just makes sure related localForages aren't pending.\n return Promise$1.resolve();\n }\n\n for (var j = 0; j < dbContext.forages.length; j++) {\n var forage = dbContext.forages[j];\n if (forage !== self) {\n // Don't wait for itself...\n initPromises.push(forage._initReady()[\"catch\"](ignoreErrors));\n }\n }\n\n // Take a snapshot of the related localForages.\n var forages = dbContext.forages.slice(0);\n\n // Initialize the connection process only when\n // all the related localForages aren't pending.\n return Promise$1.all(initPromises).then(function () {\n dbInfo.db = dbContext.db;\n // Get the connection or open a new one without upgrade.\n return _getOriginalConnection(dbInfo);\n }).then(function (db) {\n dbInfo.db = db;\n if (_isUpgradeNeeded(dbInfo, self._defaultConfig.version)) {\n // Reopen the database for upgrading.\n return _getUpgradedConnection(dbInfo);\n }\n return db;\n }).then(function (db) {\n dbInfo.db = dbContext.db = db;\n self._dbInfo = dbInfo;\n // Share the final connection amongst related localForages.\n for (var k = 0; k < forages.length; k++) {\n var forage = forages[k];\n if (forage !== self) {\n // Self is already up-to-date.\n forage._dbInfo.db = dbInfo.db;\n forage._dbInfo.version = dbInfo.version;\n }\n }\n });\n}\n\nfunction getItem(key, callback) {\n var self = this;\n\n key = normalizeKey(key);\n\n var promise = new Promise$1(function (resolve, reject) {\n self.ready().then(function () {\n createTransaction(self._dbInfo, READ_ONLY, function (err, transaction) {\n if (err) {\n return reject(err);\n }\n\n try {\n var store = transaction.objectStore(self._dbInfo.storeName);\n var req = store.get(key);\n\n req.onsuccess = function () {\n var value = req.result;\n if (value === undefined) {\n value = null;\n }\n if (_isEncodedBlob(value)) {\n value = _decodeBlob(value);\n }\n resolve(value);\n };\n\n req.onerror = function () {\n reject(req.error);\n };\n } catch (e) {\n reject(e);\n }\n });\n })[\"catch\"](reject);\n });\n\n executeCallback(promise, callback);\n return promise;\n}\n\n// Iterate over all items stored in database.\nfunction iterate(iterator, callback) {\n var self = this;\n\n var promise = new Promise$1(function (resolve, reject) {\n self.ready().then(function () {\n createTransaction(self._dbInfo, READ_ONLY, function (err, transaction) {\n if (err) {\n return reject(err);\n }\n\n try {\n var store = transaction.objectStore(self._dbInfo.storeName);\n var req = store.openCursor();\n var iterationNumber = 1;\n\n req.onsuccess = function () {\n var cursor = req.result;\n\n if (cursor) {\n var value = cursor.value;\n if (_isEncodedBlob(value)) {\n value = _decodeBlob(value);\n }\n var result = iterator(value, cursor.key, iterationNumber++);\n\n // when the iterator callback returns any\n // (non-`undefined`) value, then we stop\n // the iteration immediately\n if (result !== void 0) {\n resolve(result);\n } else {\n cursor[\"continue\"]();\n }\n } else {\n resolve();\n }\n };\n\n req.onerror = function () {\n reject(req.error);\n };\n } catch (e) {\n reject(e);\n }\n });\n })[\"catch\"](reject);\n });\n\n executeCallback(promise, callback);\n\n return promise;\n}\n\nfunction setItem(key, value, callback) {\n var self = this;\n\n key = normalizeKey(key);\n\n var promise = new Promise$1(function (resolve, reject) {\n var dbInfo;\n self.ready().then(function () {\n dbInfo = self._dbInfo;\n if (toString.call(value) === '[object Blob]') {\n return _checkBlobSupport(dbInfo.db).then(function (blobSupport) {\n if (blobSupport) {\n return value;\n }\n return _encodeBlob(value);\n });\n }\n return value;\n }).then(function (value) {\n createTransaction(self._dbInfo, READ_WRITE, function (err, transaction) {\n if (err) {\n return reject(err);\n }\n\n try {\n var store = transaction.objectStore(self._dbInfo.storeName);\n\n // The reason we don't _save_ null is because IE 10 does\n // not support saving the `null` type in IndexedDB. How\n // ironic, given the bug below!\n // See: https://github.com/mozilla/localForage/issues/161\n if (value === null) {\n value = undefined;\n }\n\n var req = store.put(value, key);\n\n transaction.oncomplete = function () {\n // Cast to undefined so the value passed to\n // callback/promise is the same as what one would get out\n // of `getItem()` later. This leads to some weirdness\n // (setItem('foo', undefined) will return `null`), but\n // it's not my fault localStorage is our baseline and that\n // it's weird.\n if (value === undefined) {\n value = null;\n }\n\n resolve(value);\n };\n transaction.onabort = transaction.onerror = function () {\n var err = req.error ? req.error : req.transaction.error;\n reject(err);\n };\n } catch (e) {\n reject(e);\n }\n });\n })[\"catch\"](reject);\n });\n\n executeCallback(promise, callback);\n return promise;\n}\n\nfunction removeItem(key, callback) {\n var self = this;\n\n key = normalizeKey(key);\n\n var promise = new Promise$1(function (resolve, reject) {\n self.ready().then(function () {\n createTransaction(self._dbInfo, READ_WRITE, function (err, transaction) {\n if (err) {\n return reject(err);\n }\n\n try {\n var store = transaction.objectStore(self._dbInfo.storeName);\n // We use a Grunt task to make this safe for IE and some\n // versions of Android (including those used by Cordova).\n // Normally IE won't like `.delete()` and will insist on\n // using `['delete']()`, but we have a build step that\n // fixes this for us now.\n var req = store[\"delete\"](key);\n transaction.oncomplete = function () {\n resolve();\n };\n\n transaction.onerror = function () {\n reject(req.error);\n };\n\n // The request will be also be aborted if we've exceeded our storage\n // space.\n transaction.onabort = function () {\n var err = req.error ? req.error : req.transaction.error;\n reject(err);\n };\n } catch (e) {\n reject(e);\n }\n });\n })[\"catch\"](reject);\n });\n\n executeCallback(promise, callback);\n return promise;\n}\n\nfunction clear(callback) {\n var self = this;\n\n var promise = new Promise$1(function (resolve, reject) {\n self.ready().then(function () {\n createTransaction(self._dbInfo, READ_WRITE, function (err, transaction) {\n if (err) {\n return reject(err);\n }\n\n try {\n var store = transaction.objectStore(self._dbInfo.storeName);\n var req = store.clear();\n\n transaction.oncomplete = function () {\n resolve();\n };\n\n transaction.onabort = transaction.onerror = function () {\n var err = req.error ? req.error : req.transaction.error;\n reject(err);\n };\n } catch (e) {\n reject(e);\n }\n });\n })[\"catch\"](reject);\n });\n\n executeCallback(promise, callback);\n return promise;\n}\n\nfunction length(callback) {\n var self = this;\n\n var promise = new Promise$1(function (resolve, reject) {\n self.ready().then(function () {\n createTransaction(self._dbInfo, READ_ONLY, function (err, transaction) {\n if (err) {\n return reject(err);\n }\n\n try {\n var store = transaction.objectStore(self._dbInfo.storeName);\n var req = store.count();\n\n req.onsuccess = function () {\n resolve(req.result);\n };\n\n req.onerror = function () {\n reject(req.error);\n };\n } catch (e) {\n reject(e);\n }\n });\n })[\"catch\"](reject);\n });\n\n executeCallback(promise, callback);\n return promise;\n}\n\nfunction key(n, callback) {\n var self = this;\n\n var promise = new Promise$1(function (resolve, reject) {\n if (n < 0) {\n resolve(null);\n\n return;\n }\n\n self.ready().then(function () {\n createTransaction(self._dbInfo, READ_ONLY, function (err, transaction) {\n if (err) {\n return reject(err);\n }\n\n try {\n var store = transaction.objectStore(self._dbInfo.storeName);\n var advanced = false;\n var req = store.openKeyCursor();\n\n req.onsuccess = function () {\n var cursor = req.result;\n if (!cursor) {\n // this means there weren't enough keys\n resolve(null);\n\n return;\n }\n\n if (n === 0) {\n // We have the first key, return it if that's what they\n // wanted.\n resolve(cursor.key);\n } else {\n if (!advanced) {\n // Otherwise, ask the cursor to skip ahead n\n // records.\n advanced = true;\n cursor.advance(n);\n } else {\n // When we get here, we've got the nth key.\n resolve(cursor.key);\n }\n }\n };\n\n req.onerror = function () {\n reject(req.error);\n };\n } catch (e) {\n reject(e);\n }\n });\n })[\"catch\"](reject);\n });\n\n executeCallback(promise, callback);\n return promise;\n}\n\nfunction keys(callback) {\n var self = this;\n\n var promise = new Promise$1(function (resolve, reject) {\n self.ready().then(function () {\n createTransaction(self._dbInfo, READ_ONLY, function (err, transaction) {\n if (err) {\n return reject(err);\n }\n\n try {\n var store = transaction.objectStore(self._dbInfo.storeName);\n var req = store.openKeyCursor();\n var keys = [];\n\n req.onsuccess = function () {\n var cursor = req.result;\n\n if (!cursor) {\n resolve(keys);\n return;\n }\n\n keys.push(cursor.key);\n cursor[\"continue\"]();\n };\n\n req.onerror = function () {\n reject(req.error);\n };\n } catch (e) {\n reject(e);\n }\n });\n })[\"catch\"](reject);\n });\n\n executeCallback(promise, callback);\n return promise;\n}\n\nfunction dropInstance(options, callback) {\n callback = getCallback.apply(this, arguments);\n\n var currentConfig = this.config();\n options = typeof options !== 'function' && options || {};\n if (!options.name) {\n options.name = options.name || currentConfig.name;\n options.storeName = options.storeName || currentConfig.storeName;\n }\n\n var self = this;\n var promise;\n if (!options.name) {\n promise = Promise$1.reject('Invalid arguments');\n } else {\n var isCurrentDb = options.name === currentConfig.name && self._dbInfo.db;\n\n var dbPromise = isCurrentDb ? Promise$1.resolve(self._dbInfo.db) : _getOriginalConnection(options).then(function (db) {\n var dbContext = dbContexts[options.name];\n var forages = dbContext.forages;\n dbContext.db = db;\n for (var i = 0; i < forages.length; i++) {\n forages[i]._dbInfo.db = db;\n }\n return db;\n });\n\n if (!options.storeName) {\n promise = dbPromise.then(function (db) {\n _deferReadiness(options);\n\n var dbContext = dbContexts[options.name];\n var forages = dbContext.forages;\n\n db.close();\n for (var i = 0; i < forages.length; i++) {\n var forage = forages[i];\n forage._dbInfo.db = null;\n }\n\n var dropDBPromise = new Promise$1(function (resolve, reject) {\n var req = idb.deleteDatabase(options.name);\n\n req.onerror = function () {\n var db = req.result;\n if (db) {\n db.close();\n }\n reject(req.error);\n };\n\n req.onblocked = function () {\n // Closing all open connections in onversionchange handler should prevent this situation, but if\n // we do get here, it just means the request remains pending - eventually it will succeed or error\n console.warn('dropInstance blocked for database \"' + options.name + '\" until all open connections are closed');\n };\n\n req.onsuccess = function () {\n var db = req.result;\n if (db) {\n db.close();\n }\n resolve(db);\n };\n });\n\n return dropDBPromise.then(function (db) {\n dbContext.db = db;\n for (var i = 0; i < forages.length; i++) {\n var _forage = forages[i];\n _advanceReadiness(_forage._dbInfo);\n }\n })[\"catch\"](function (err) {\n (_rejectReadiness(options, err) || Promise$1.resolve())[\"catch\"](function () {});\n throw err;\n });\n });\n } else {\n promise = dbPromise.then(function (db) {\n if (!db.objectStoreNames.contains(options.storeName)) {\n return;\n }\n\n var newVersion = db.version + 1;\n\n _deferReadiness(options);\n\n var dbContext = dbContexts[options.name];\n var forages = dbContext.forages;\n\n db.close();\n for (var i = 0; i < forages.length; i++) {\n var forage = forages[i];\n forage._dbInfo.db = null;\n forage._dbInfo.version = newVersion;\n }\n\n var dropObjectPromise = new Promise$1(function (resolve, reject) {\n var req = idb.open(options.name, newVersion);\n\n req.onerror = function (err) {\n var db = req.result;\n db.close();\n reject(err);\n };\n\n req.onupgradeneeded = function () {\n var db = req.result;\n db.deleteObjectStore(options.storeName);\n };\n\n req.onsuccess = function () {\n var db = req.result;\n db.close();\n resolve(db);\n };\n });\n\n return dropObjectPromise.then(function (db) {\n dbContext.db = db;\n for (var j = 0; j < forages.length; j++) {\n var _forage2 = forages[j];\n _forage2._dbInfo.db = db;\n _advanceReadiness(_forage2._dbInfo);\n }\n })[\"catch\"](function (err) {\n (_rejectReadiness(options, err) || Promise$1.resolve())[\"catch\"](function () {});\n throw err;\n });\n });\n }\n }\n\n executeCallback(promise, callback);\n return promise;\n}\n\nvar asyncStorage = {\n _driver: 'asyncStorage',\n _initStorage: _initStorage,\n _support: isIndexedDBValid(),\n iterate: iterate,\n getItem: getItem,\n setItem: setItem,\n removeItem: removeItem,\n clear: clear,\n length: length,\n key: key,\n keys: keys,\n dropInstance: dropInstance\n};\n\nfunction isWebSQLValid() {\n return typeof openDatabase === 'function';\n}\n\n// Sadly, the best way to save binary data in WebSQL/localStorage is serializing\n// it to Base64, so this is how we store it to prevent very strange errors with less\n// verbose ways of binary <-> string data storage.\nvar BASE_CHARS = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';\n\nvar BLOB_TYPE_PREFIX = '~~local_forage_type~';\nvar BLOB_TYPE_PREFIX_REGEX = /^~~local_forage_type~([^~]+)~/;\n\nvar SERIALIZED_MARKER = '__lfsc__:';\nvar SERIALIZED_MARKER_LENGTH = SERIALIZED_MARKER.length;\n\n// OMG the serializations!\nvar TYPE_ARRAYBUFFER = 'arbf';\nvar TYPE_BLOB = 'blob';\nvar TYPE_INT8ARRAY = 'si08';\nvar TYPE_UINT8ARRAY = 'ui08';\nvar TYPE_UINT8CLAMPEDARRAY = 'uic8';\nvar TYPE_INT16ARRAY = 'si16';\nvar TYPE_INT32ARRAY = 'si32';\nvar TYPE_UINT16ARRAY = 'ur16';\nvar TYPE_UINT32ARRAY = 'ui32';\nvar TYPE_FLOAT32ARRAY = 'fl32';\nvar TYPE_FLOAT64ARRAY = 'fl64';\nvar TYPE_SERIALIZED_MARKER_LENGTH = SERIALIZED_MARKER_LENGTH + TYPE_ARRAYBUFFER.length;\n\nvar toString$1 = Object.prototype.toString;\n\nfunction stringToBuffer(serializedString) {\n // Fill the string into a ArrayBuffer.\n var bufferLength = serializedString.length * 0.75;\n var len = serializedString.length;\n var i;\n var p = 0;\n var encoded1, encoded2, encoded3, encoded4;\n\n if (serializedString[serializedString.length - 1] === '=') {\n bufferLength--;\n if (serializedString[serializedString.length - 2] === '=') {\n bufferLength--;\n }\n }\n\n var buffer = new ArrayBuffer(bufferLength);\n var bytes = new Uint8Array(buffer);\n\n for (i = 0; i < len; i += 4) {\n encoded1 = BASE_CHARS.indexOf(serializedString[i]);\n encoded2 = BASE_CHARS.indexOf(serializedString[i + 1]);\n encoded3 = BASE_CHARS.indexOf(serializedString[i + 2]);\n encoded4 = BASE_CHARS.indexOf(serializedString[i + 3]);\n\n /*jslint bitwise: true */\n bytes[p++] = encoded1 << 2 | encoded2 >> 4;\n bytes[p++] = (encoded2 & 15) << 4 | encoded3 >> 2;\n bytes[p++] = (encoded3 & 3) << 6 | encoded4 & 63;\n }\n return buffer;\n}\n\n// Converts a buffer to a string to store, serialized, in the backend\n// storage library.\nfunction bufferToString(buffer) {\n // base64-arraybuffer\n var bytes = new Uint8Array(buffer);\n var base64String = '';\n var i;\n\n for (i = 0; i < bytes.length; i += 3) {\n /*jslint bitwise: true */\n base64String += BASE_CHARS[bytes[i] >> 2];\n base64String += BASE_CHARS[(bytes[i] & 3) << 4 | bytes[i + 1] >> 4];\n base64String += BASE_CHARS[(bytes[i + 1] & 15) << 2 | bytes[i + 2] >> 6];\n base64String += BASE_CHARS[bytes[i + 2] & 63];\n }\n\n if (bytes.length % 3 === 2) {\n base64String = base64String.substring(0, base64String.length - 1) + '=';\n } else if (bytes.length % 3 === 1) {\n base64String = base64String.substring(0, base64String.length - 2) + '==';\n }\n\n return base64String;\n}\n\n// Serialize a value, afterwards executing a callback (which usually\n// instructs the `setItem()` callback/promise to be executed). This is how\n// we store binary data with localStorage.\nfunction serialize(value, callback) {\n var valueType = '';\n if (value) {\n valueType = toString$1.call(value);\n }\n\n // Cannot use `value instanceof ArrayBuffer` or such here, as these\n // checks fail when running the tests using casper.js...\n //\n // TODO: See why those tests fail and use a better solution.\n if (value && (valueType === '[object ArrayBuffer]' || value.buffer && toString$1.call(value.buffer) === '[object ArrayBuffer]')) {\n // Convert binary arrays to a string and prefix the string with\n // a special marker.\n var buffer;\n var marker = SERIALIZED_MARKER;\n\n if (value instanceof ArrayBuffer) {\n buffer = value;\n marker += TYPE_ARRAYBUFFER;\n } else {\n buffer = value.buffer;\n\n if (valueType === '[object Int8Array]') {\n marker += TYPE_INT8ARRAY;\n } else if (valueType === '[object Uint8Array]') {\n marker += TYPE_UINT8ARRAY;\n } else if (valueType === '[object Uint8ClampedArray]') {\n marker += TYPE_UINT8CLAMPEDARRAY;\n } else if (valueType === '[object Int16Array]') {\n marker += TYPE_INT16ARRAY;\n } else if (valueType === '[object Uint16Array]') {\n marker += TYPE_UINT16ARRAY;\n } else if (valueType === '[object Int32Array]') {\n marker += TYPE_INT32ARRAY;\n } else if (valueType === '[object Uint32Array]') {\n marker += TYPE_UINT32ARRAY;\n } else if (valueType === '[object Float32Array]') {\n marker += TYPE_FLOAT32ARRAY;\n } else if (valueType === '[object Float64Array]') {\n marker += TYPE_FLOAT64ARRAY;\n } else {\n callback(new Error('Failed to get type for BinaryArray'));\n }\n }\n\n callback(marker + bufferToString(buffer));\n } else if (valueType === '[object Blob]') {\n // Conver the blob to a binaryArray and then to a string.\n var fileReader = new FileReader();\n\n fileReader.onload = function () {\n // Backwards-compatible prefix for the blob type.\n var str = BLOB_TYPE_PREFIX + value.type + '~' + bufferToString(this.result);\n\n callback(SERIALIZED_MARKER + TYPE_BLOB + str);\n };\n\n fileReader.readAsArrayBuffer(value);\n } else {\n try {\n callback(JSON.stringify(value));\n } catch (e) {\n console.error(\"Couldn't convert value into a JSON string: \", value);\n\n callback(null, e);\n }\n }\n}\n\n// Deserialize data we've inserted into a value column/field. We place\n// special markers into our strings to mark them as encoded; this isn't\n// as nice as a meta field, but it's the only sane thing we can do whilst\n// keeping localStorage support intact.\n//\n// Oftentimes this will just deserialize JSON content, but if we have a\n// special marker (SERIALIZED_MARKER, defined above), we will extract\n// some kind of arraybuffer/binary data/typed array out of the string.\nfunction deserialize(value) {\n // If we haven't marked this string as being specially serialized (i.e.\n // something other than serialized JSON), we can just return it and be\n // done with it.\n if (value.substring(0, SERIALIZED_MARKER_LENGTH) !== SERIALIZED_MARKER) {\n return JSON.parse(value);\n }\n\n // The following code deals with deserializing some kind of Blob or\n // TypedArray. First we separate out the type of data we're dealing\n // with from the data itself.\n var serializedString = value.substring(TYPE_SERIALIZED_MARKER_LENGTH);\n var type = value.substring(SERIALIZED_MARKER_LENGTH, TYPE_SERIALIZED_MARKER_LENGTH);\n\n var blobType;\n // Backwards-compatible blob type serialization strategy.\n // DBs created with older versions of localForage will simply not have the blob type.\n if (type === TYPE_BLOB && BLOB_TYPE_PREFIX_REGEX.test(serializedString)) {\n var matcher = serializedString.match(BLOB_TYPE_PREFIX_REGEX);\n blobType = matcher[1];\n serializedString = serializedString.substring(matcher[0].length);\n }\n var buffer = stringToBuffer(serializedString);\n\n // Return the right type based on the code/type set during\n // serialization.\n switch (type) {\n case TYPE_ARRAYBUFFER:\n return buffer;\n case TYPE_BLOB:\n return createBlob([buffer], { type: blobType });\n case TYPE_INT8ARRAY:\n return new Int8Array(buffer);\n case TYPE_UINT8ARRAY:\n return new Uint8Array(buffer);\n case TYPE_UINT8CLAMPEDARRAY:\n return new Uint8ClampedArray(buffer);\n case TYPE_INT16ARRAY:\n return new Int16Array(buffer);\n case TYPE_UINT16ARRAY:\n return new Uint16Array(buffer);\n case TYPE_INT32ARRAY:\n return new Int32Array(buffer);\n case TYPE_UINT32ARRAY:\n return new Uint32Array(buffer);\n case TYPE_FLOAT32ARRAY:\n return new Float32Array(buffer);\n case TYPE_FLOAT64ARRAY:\n return new Float64Array(buffer);\n default:\n throw new Error('Unkown type: ' + type);\n }\n}\n\nvar localforageSerializer = {\n serialize: serialize,\n deserialize: deserialize,\n stringToBuffer: stringToBuffer,\n bufferToString: bufferToString\n};\n\n/*\n * Includes code from:\n *\n * base64-arraybuffer\n * https://github.com/niklasvh/base64-arraybuffer\n *\n * Copyright (c) 2012 Niklas von Hertzen\n * Licensed under the MIT license.\n */\n\nfunction createDbTable(t, dbInfo, callback, errorCallback) {\n t.executeSql('CREATE TABLE IF NOT EXISTS ' + dbInfo.storeName + ' ' + '(id INTEGER PRIMARY KEY, key unique, value)', [], callback, errorCallback);\n}\n\n// Open the WebSQL database (automatically creates one if one didn't\n// previously exist), using any options set in the config.\nfunction _initStorage$1(options) {\n var self = this;\n var dbInfo = {\n db: null\n };\n\n if (options) {\n for (var i in options) {\n dbInfo[i] = typeof options[i] !== 'string' ? options[i].toString() : options[i];\n }\n }\n\n var dbInfoPromise = new Promise$1(function (resolve, reject) {\n // Open the database; the openDatabase API will automatically\n // create it for us if it doesn't exist.\n try {\n dbInfo.db = openDatabase(dbInfo.name, String(dbInfo.version), dbInfo.description, dbInfo.size);\n } catch (e) {\n return reject(e);\n }\n\n // Create our key/value table if it doesn't exist.\n dbInfo.db.transaction(function (t) {\n createDbTable(t, dbInfo, function () {\n self._dbInfo = dbInfo;\n resolve();\n }, function (t, error) {\n reject(error);\n });\n }, reject);\n });\n\n dbInfo.serializer = localforageSerializer;\n return dbInfoPromise;\n}\n\nfunction tryExecuteSql(t, dbInfo, sqlStatement, args, callback, errorCallback) {\n t.executeSql(sqlStatement, args, callback, function (t, error) {\n if (error.code === error.SYNTAX_ERR) {\n t.executeSql('SELECT name FROM sqlite_master ' + \"WHERE type='table' AND name = ?\", [dbInfo.storeName], function (t, results) {\n if (!results.rows.length) {\n // if the table is missing (was deleted)\n // re-create it table and retry\n createDbTable(t, dbInfo, function () {\n t.executeSql(sqlStatement, args, callback, errorCallback);\n }, errorCallback);\n } else {\n errorCallback(t, error);\n }\n }, errorCallback);\n } else {\n errorCallback(t, error);\n }\n }, errorCallback);\n}\n\nfunction getItem$1(key, callback) {\n var self = this;\n\n key = normalizeKey(key);\n\n var promise = new Promise$1(function (resolve, reject) {\n self.ready().then(function () {\n var dbInfo = self._dbInfo;\n dbInfo.db.transaction(function (t) {\n tryExecuteSql(t, dbInfo, 'SELECT * FROM ' + dbInfo.storeName + ' WHERE key = ? LIMIT 1', [key], function (t, results) {\n var result = results.rows.length ? results.rows.item(0).value : null;\n\n // Check to see if this is serialized content we need to\n // unpack.\n if (result) {\n result = dbInfo.serializer.deserialize(result);\n }\n\n resolve(result);\n }, function (t, error) {\n reject(error);\n });\n });\n })[\"catch\"](reject);\n });\n\n executeCallback(promise, callback);\n return promise;\n}\n\nfunction iterate$1(iterator, callback) {\n var self = this;\n\n var promise = new Promise$1(function (resolve, reject) {\n self.ready().then(function () {\n var dbInfo = self._dbInfo;\n\n dbInfo.db.transaction(function (t) {\n tryExecuteSql(t, dbInfo, 'SELECT * FROM ' + dbInfo.storeName, [], function (t, results) {\n var rows = results.rows;\n var length = rows.length;\n\n for (var i = 0; i < length; i++) {\n var item = rows.item(i);\n var result = item.value;\n\n // Check to see if this is serialized content\n // we need to unpack.\n if (result) {\n result = dbInfo.serializer.deserialize(result);\n }\n\n result = iterator(result, item.key, i + 1);\n\n // void(0) prevents problems with redefinition\n // of `undefined`.\n if (result !== void 0) {\n resolve(result);\n return;\n }\n }\n\n resolve();\n }, function (t, error) {\n reject(error);\n });\n });\n })[\"catch\"](reject);\n });\n\n executeCallback(promise, callback);\n return promise;\n}\n\nfunction _setItem(key, value, callback, retriesLeft) {\n var self = this;\n\n key = normalizeKey(key);\n\n var promise = new Promise$1(function (resolve, reject) {\n self.ready().then(function () {\n // The localStorage API doesn't return undefined values in an\n // \"expected\" way, so undefined is always cast to null in all\n // drivers. See: https://github.com/mozilla/localForage/pull/42\n if (value === undefined) {\n value = null;\n }\n\n // Save the original value to pass to the callback.\n var originalValue = value;\n\n var dbInfo = self._dbInfo;\n dbInfo.serializer.serialize(value, function (value, error) {\n if (error) {\n reject(error);\n } else {\n dbInfo.db.transaction(function (t) {\n tryExecuteSql(t, dbInfo, 'INSERT OR REPLACE INTO ' + dbInfo.storeName + ' ' + '(key, value) VALUES (?, ?)', [key, value], function () {\n resolve(originalValue);\n }, function (t, error) {\n reject(error);\n });\n }, function (sqlError) {\n // The transaction failed; check\n // to see if it's a quota error.\n if (sqlError.code === sqlError.QUOTA_ERR) {\n // We reject the callback outright for now, but\n // it's worth trying to re-run the transaction.\n // Even if the user accepts the prompt to use\n // more storage on Safari, this error will\n // be called.\n //\n // Try to re-run the transaction.\n if (retriesLeft > 0) {\n resolve(_setItem.apply(self, [key, originalValue, callback, retriesLeft - 1]));\n return;\n }\n reject(sqlError);\n }\n });\n }\n });\n })[\"catch\"](reject);\n });\n\n executeCallback(promise, callback);\n return promise;\n}\n\nfunction setItem$1(key, value, callback) {\n return _setItem.apply(this, [key, value, callback, 1]);\n}\n\nfunction removeItem$1(key, callback) {\n var self = this;\n\n key = normalizeKey(key);\n\n var promise = new Promise$1(function (resolve, reject) {\n self.ready().then(function () {\n var dbInfo = self._dbInfo;\n dbInfo.db.transaction(function (t) {\n tryExecuteSql(t, dbInfo, 'DELETE FROM ' + dbInfo.storeName + ' WHERE key = ?', [key], function () {\n resolve();\n }, function (t, error) {\n reject(error);\n });\n });\n })[\"catch\"](reject);\n });\n\n executeCallback(promise, callback);\n return promise;\n}\n\n// Deletes every item in the table.\n// TODO: Find out if this resets the AUTO_INCREMENT number.\nfunction clear$1(callback) {\n var self = this;\n\n var promise = new Promise$1(function (resolve, reject) {\n self.ready().then(function () {\n var dbInfo = self._dbInfo;\n dbInfo.db.transaction(function (t) {\n tryExecuteSql(t, dbInfo, 'DELETE FROM ' + dbInfo.storeName, [], function () {\n resolve();\n }, function (t, error) {\n reject(error);\n });\n });\n })[\"catch\"](reject);\n });\n\n executeCallback(promise, callback);\n return promise;\n}\n\n// Does a simple `COUNT(key)` to get the number of items stored in\n// localForage.\nfunction length$1(callback) {\n var self = this;\n\n var promise = new Promise$1(function (resolve, reject) {\n self.ready().then(function () {\n var dbInfo = self._dbInfo;\n dbInfo.db.transaction(function (t) {\n // Ahhh, SQL makes this one soooooo easy.\n tryExecuteSql(t, dbInfo, 'SELECT COUNT(key) as c FROM ' + dbInfo.storeName, [], function (t, results) {\n var result = results.rows.item(0).c;\n resolve(result);\n }, function (t, error) {\n reject(error);\n });\n });\n })[\"catch\"](reject);\n });\n\n executeCallback(promise, callback);\n return promise;\n}\n\n// Return the key located at key index X; essentially gets the key from a\n// `WHERE id = ?`. This is the most efficient way I can think to implement\n// this rarely-used (in my experience) part of the API, but it can seem\n// inconsistent, because we do `INSERT OR REPLACE INTO` on `setItem()`, so\n// the ID of each key will change every time it's updated. Perhaps a stored\n// procedure for the `setItem()` SQL would solve this problem?\n// TODO: Don't change ID on `setItem()`.\nfunction key$1(n, callback) {\n var self = this;\n\n var promise = new Promise$1(function (resolve, reject) {\n self.ready().then(function () {\n var dbInfo = self._dbInfo;\n dbInfo.db.transaction(function (t) {\n tryExecuteSql(t, dbInfo, 'SELECT key FROM ' + dbInfo.storeName + ' WHERE id = ? LIMIT 1', [n + 1], function (t, results) {\n var result = results.rows.length ? results.rows.item(0).key : null;\n resolve(result);\n }, function (t, error) {\n reject(error);\n });\n });\n })[\"catch\"](reject);\n });\n\n executeCallback(promise, callback);\n return promise;\n}\n\nfunction keys$1(callback) {\n var self = this;\n\n var promise = new Promise$1(function (resolve, reject) {\n self.ready().then(function () {\n var dbInfo = self._dbInfo;\n dbInfo.db.transaction(function (t) {\n tryExecuteSql(t, dbInfo, 'SELECT key FROM ' + dbInfo.storeName, [], function (t, results) {\n var keys = [];\n\n for (var i = 0; i < results.rows.length; i++) {\n keys.push(results.rows.item(i).key);\n }\n\n resolve(keys);\n }, function (t, error) {\n reject(error);\n });\n });\n })[\"catch\"](reject);\n });\n\n executeCallback(promise, callback);\n return promise;\n}\n\n// https://www.w3.org/TR/webdatabase/#databases\n// > There is no way to enumerate or delete the databases available for an origin from this API.\nfunction getAllStoreNames(db) {\n return new Promise$1(function (resolve, reject) {\n db.transaction(function (t) {\n t.executeSql('SELECT name FROM sqlite_master ' + \"WHERE type='table' AND name <> '__WebKitDatabaseInfoTable__'\", [], function (t, results) {\n var storeNames = [];\n\n for (var i = 0; i < results.rows.length; i++) {\n storeNames.push(results.rows.item(i).name);\n }\n\n resolve({\n db: db,\n storeNames: storeNames\n });\n }, function (t, error) {\n reject(error);\n });\n }, function (sqlError) {\n reject(sqlError);\n });\n });\n}\n\nfunction dropInstance$1(options, callback) {\n callback = getCallback.apply(this, arguments);\n\n var currentConfig = this.config();\n options = typeof options !== 'function' && options || {};\n if (!options.name) {\n options.name = options.name || currentConfig.name;\n options.storeName = options.storeName || currentConfig.storeName;\n }\n\n var self = this;\n var promise;\n if (!options.name) {\n promise = Promise$1.reject('Invalid arguments');\n } else {\n promise = new Promise$1(function (resolve) {\n var db;\n if (options.name === currentConfig.name) {\n // use the db reference of the current instance\n db = self._dbInfo.db;\n } else {\n db = openDatabase(options.name, '', '', 0);\n }\n\n if (!options.storeName) {\n // drop all database tables\n resolve(getAllStoreNames(db));\n } else {\n resolve({\n db: db,\n storeNames: [options.storeName]\n });\n }\n }).then(function (operationInfo) {\n return new Promise$1(function (resolve, reject) {\n operationInfo.db.transaction(function (t) {\n function dropTable(storeName) {\n return new Promise$1(function (resolve, reject) {\n t.executeSql('DROP TABLE IF EXISTS ' + storeName, [], function () {\n resolve();\n }, function (t, error) {\n reject(error);\n });\n });\n }\n\n var operations = [];\n for (var i = 0, len = operationInfo.storeNames.length; i < len; i++) {\n operations.push(dropTable(operationInfo.storeNames[i]));\n }\n\n Promise$1.all(operations).then(function () {\n resolve();\n })[\"catch\"](function (e) {\n reject(e);\n });\n }, function (sqlError) {\n reject(sqlError);\n });\n });\n });\n }\n\n executeCallback(promise, callback);\n return promise;\n}\n\nvar webSQLStorage = {\n _driver: 'webSQLStorage',\n _initStorage: _initStorage$1,\n _support: isWebSQLValid(),\n iterate: iterate$1,\n getItem: getItem$1,\n setItem: setItem$1,\n removeItem: removeItem$1,\n clear: clear$1,\n length: length$1,\n key: key$1,\n keys: keys$1,\n dropInstance: dropInstance$1\n};\n\nfunction isLocalStorageValid() {\n try {\n return typeof localStorage !== 'undefined' && 'setItem' in localStorage &&\n // in IE8 typeof localStorage.setItem === 'object'\n !!localStorage.setItem;\n } catch (e) {\n return false;\n }\n}\n\nfunction _getKeyPrefix(options, defaultConfig) {\n var keyPrefix = options.name + '/';\n\n if (options.storeName !== defaultConfig.storeName) {\n keyPrefix += options.storeName + '/';\n }\n return keyPrefix;\n}\n\n// Check if localStorage throws when saving an item\nfunction checkIfLocalStorageThrows() {\n var localStorageTestKey = '_localforage_support_test';\n\n try {\n localStorage.setItem(localStorageTestKey, true);\n localStorage.removeItem(localStorageTestKey);\n\n return false;\n } catch (e) {\n return true;\n }\n}\n\n// Check if localStorage is usable and allows to save an item\n// This method checks if localStorage is usable in Safari Private Browsing\n// mode, or in any other case where the available quota for localStorage\n// is 0 and there wasn't any saved items yet.\nfunction _isLocalStorageUsable() {\n return !checkIfLocalStorageThrows() || localStorage.length > 0;\n}\n\n// Config the localStorage backend, using options set in the config.\nfunction _initStorage$2(options) {\n var self = this;\n var dbInfo = {};\n if (options) {\n for (var i in options) {\n dbInfo[i] = options[i];\n }\n }\n\n dbInfo.keyPrefix = _getKeyPrefix(options, self._defaultConfig);\n\n if (!_isLocalStorageUsable()) {\n return Promise$1.reject();\n }\n\n self._dbInfo = dbInfo;\n dbInfo.serializer = localforageSerializer;\n\n return Promise$1.resolve();\n}\n\n// Remove all keys from the datastore, effectively destroying all data in\n// the app's key/value store!\nfunction clear$2(callback) {\n var self = this;\n var promise = self.ready().then(function () {\n var keyPrefix = self._dbInfo.keyPrefix;\n\n for (var i = localStorage.length - 1; i >= 0; i--) {\n var key = localStorage.key(i);\n\n if (key.indexOf(keyPrefix) === 0) {\n localStorage.removeItem(key);\n }\n }\n });\n\n executeCallback(promise, callback);\n return promise;\n}\n\n// Retrieve an item from the store. Unlike the original async_storage\n// library in Gaia, we don't modify return values at all. If a key's value\n// is `undefined`, we pass that value to the callback function.\nfunction getItem$2(key, callback) {\n var self = this;\n\n key = normalizeKey(key);\n\n var promise = self.ready().then(function () {\n var dbInfo = self._dbInfo;\n var result = localStorage.getItem(dbInfo.keyPrefix + key);\n\n // If a result was found, parse it from the serialized\n // string into a JS object. If result isn't truthy, the key\n // is likely undefined and we'll pass it straight to the\n // callback.\n if (result) {\n result = dbInfo.serializer.deserialize(result);\n }\n\n return result;\n });\n\n executeCallback(promise, callback);\n return promise;\n}\n\n// Iterate over all items in the store.\nfunction iterate$2(iterator, callback) {\n var self = this;\n\n var promise = self.ready().then(function () {\n var dbInfo = self._dbInfo;\n var keyPrefix = dbInfo.keyPrefix;\n var keyPrefixLength = keyPrefix.length;\n var length = localStorage.length;\n\n // We use a dedicated iterator instead of the `i` variable below\n // so other keys we fetch in localStorage aren't counted in\n // the `iterationNumber` argument passed to the `iterate()`\n // callback.\n //\n // See: github.com/mozilla/localForage/pull/435#discussion_r38061530\n var iterationNumber = 1;\n\n for (var i = 0; i < length; i++) {\n var key = localStorage.key(i);\n if (key.indexOf(keyPrefix) !== 0) {\n continue;\n }\n var value = localStorage.getItem(key);\n\n // If a result was found, parse it from the serialized\n // string into a JS object. If result isn't truthy, the\n // key is likely undefined and we'll pass it straight\n // to the iterator.\n if (value) {\n value = dbInfo.serializer.deserialize(value);\n }\n\n value = iterator(value, key.substring(keyPrefixLength), iterationNumber++);\n\n if (value !== void 0) {\n return value;\n }\n }\n });\n\n executeCallback(promise, callback);\n return promise;\n}\n\n// Same as localStorage's key() method, except takes a callback.\nfunction key$2(n, callback) {\n var self = this;\n var promise = self.ready().then(function () {\n var dbInfo = self._dbInfo;\n var result;\n try {\n result = localStorage.key(n);\n } catch (error) {\n result = null;\n }\n\n // Remove the prefix from the key, if a key is found.\n if (result) {\n result = result.substring(dbInfo.keyPrefix.length);\n }\n\n return result;\n });\n\n executeCallback(promise, callback);\n return promise;\n}\n\nfunction keys$2(callback) {\n var self = this;\n var promise = self.ready().then(function () {\n var dbInfo = self._dbInfo;\n var length = localStorage.length;\n var keys = [];\n\n for (var i = 0; i < length; i++) {\n var itemKey = localStorage.key(i);\n if (itemKey.indexOf(dbInfo.keyPrefix) === 0) {\n keys.push(itemKey.substring(dbInfo.keyPrefix.length));\n }\n }\n\n return keys;\n });\n\n executeCallback(promise, callback);\n return promise;\n}\n\n// Supply the number of keys in the datastore to the callback function.\nfunction length$2(callback) {\n var self = this;\n var promise = self.keys().then(function (keys) {\n return keys.length;\n });\n\n executeCallback(promise, callback);\n return promise;\n}\n\n// Remove an item from the store, nice and simple.\nfunction removeItem$2(key, callback) {\n var self = this;\n\n key = normalizeKey(key);\n\n var promise = self.ready().then(function () {\n var dbInfo = self._dbInfo;\n localStorage.removeItem(dbInfo.keyPrefix + key);\n });\n\n executeCallback(promise, callback);\n return promise;\n}\n\n// Set a key's value and run an optional callback once the value is set.\n// Unlike Gaia's implementation, the callback function is passed the value,\n// in case you want to operate on that value only after you're sure it\n// saved, or something like that.\nfunction setItem$2(key, value, callback) {\n var self = this;\n\n key = normalizeKey(key);\n\n var promise = self.ready().then(function () {\n // Convert undefined values to null.\n // https://github.com/mozilla/localForage/pull/42\n if (value === undefined) {\n value = null;\n }\n\n // Save the original value to pass to the callback.\n var originalValue = value;\n\n return new Promise$1(function (resolve, reject) {\n var dbInfo = self._dbInfo;\n dbInfo.serializer.serialize(value, function (value, error) {\n if (error) {\n reject(error);\n } else {\n try {\n localStorage.setItem(dbInfo.keyPrefix + key, value);\n resolve(originalValue);\n } catch (e) {\n // localStorage capacity exceeded.\n // TODO: Make this a specific error/event.\n if (e.name === 'QuotaExceededError' || e.name === 'NS_ERROR_DOM_QUOTA_REACHED') {\n reject(e);\n }\n reject(e);\n }\n }\n });\n });\n });\n\n executeCallback(promise, callback);\n return promise;\n}\n\nfunction dropInstance$2(options, callback) {\n callback = getCallback.apply(this, arguments);\n\n options = typeof options !== 'function' && options || {};\n if (!options.name) {\n var currentConfig = this.config();\n options.name = options.name || currentConfig.name;\n options.storeName = options.storeName || currentConfig.storeName;\n }\n\n var self = this;\n var promise;\n if (!options.name) {\n promise = Promise$1.reject('Invalid arguments');\n } else {\n promise = new Promise$1(function (resolve) {\n if (!options.storeName) {\n resolve(options.name + '/');\n } else {\n resolve(_getKeyPrefix(options, self._defaultConfig));\n }\n }).then(function (keyPrefix) {\n for (var i = localStorage.length - 1; i >= 0; i--) {\n var key = localStorage.key(i);\n\n if (key.indexOf(keyPrefix) === 0) {\n localStorage.removeItem(key);\n }\n }\n });\n }\n\n executeCallback(promise, callback);\n return promise;\n}\n\nvar localStorageWrapper = {\n _driver: 'localStorageWrapper',\n _initStorage: _initStorage$2,\n _support: isLocalStorageValid(),\n iterate: iterate$2,\n getItem: getItem$2,\n setItem: setItem$2,\n removeItem: removeItem$2,\n clear: clear$2,\n length: length$2,\n key: key$2,\n keys: keys$2,\n dropInstance: dropInstance$2\n};\n\nvar sameValue = function sameValue(x, y) {\n return x === y || typeof x === 'number' && typeof y === 'number' && isNaN(x) && isNaN(y);\n};\n\nvar includes = function includes(array, searchElement) {\n var len = array.length;\n var i = 0;\n while (i < len) {\n if (sameValue(array[i], searchElement)) {\n return true;\n }\n i++;\n }\n\n return false;\n};\n\nvar isArray = Array.isArray || function (arg) {\n return Object.prototype.toString.call(arg) === '[object Array]';\n};\n\n// Drivers are stored here when `defineDriver()` is called.\n// They are shared across all instances of localForage.\nvar DefinedDrivers = {};\n\nvar DriverSupport = {};\n\nvar DefaultDrivers = {\n INDEXEDDB: asyncStorage,\n WEBSQL: webSQLStorage,\n LOCALSTORAGE: localStorageWrapper\n};\n\nvar DefaultDriverOrder = [DefaultDrivers.INDEXEDDB._driver, DefaultDrivers.WEBSQL._driver, DefaultDrivers.LOCALSTORAGE._driver];\n\nvar OptionalDriverMethods = ['dropInstance'];\n\nvar LibraryMethods = ['clear', 'getItem', 'iterate', 'key', 'keys', 'length', 'removeItem', 'setItem'].concat(OptionalDriverMethods);\n\nvar DefaultConfig = {\n description: '',\n driver: DefaultDriverOrder.slice(),\n name: 'localforage',\n // Default DB size is _JUST UNDER_ 5MB, as it's the highest size\n // we can use without a prompt.\n size: 4980736,\n storeName: 'keyvaluepairs',\n version: 1.0\n};\n\nfunction callWhenReady(localForageInstance, libraryMethod) {\n localForageInstance[libraryMethod] = function () {\n var _args = arguments;\n return localForageInstance.ready().then(function () {\n return localForageInstance[libraryMethod].apply(localForageInstance, _args);\n });\n };\n}\n\nfunction extend() {\n for (var i = 1; i < arguments.length; i++) {\n var arg = arguments[i];\n\n if (arg) {\n for (var _key in arg) {\n if (arg.hasOwnProperty(_key)) {\n if (isArray(arg[_key])) {\n arguments[0][_key] = arg[_key].slice();\n } else {\n arguments[0][_key] = arg[_key];\n }\n }\n }\n }\n }\n\n return arguments[0];\n}\n\nvar LocalForage = function () {\n function LocalForage(options) {\n _classCallCheck(this, LocalForage);\n\n for (var driverTypeKey in DefaultDrivers) {\n if (DefaultDrivers.hasOwnProperty(driverTypeKey)) {\n var driver = DefaultDrivers[driverTypeKey];\n var driverName = driver._driver;\n this[driverTypeKey] = driverName;\n\n if (!DefinedDrivers[driverName]) {\n // we don't need to wait for the promise,\n // since the default drivers can be defined\n // in a blocking manner\n this.defineDriver(driver);\n }\n }\n }\n\n this._defaultConfig = extend({}, DefaultConfig);\n this._config = extend({}, this._defaultConfig, options);\n this._driverSet = null;\n this._initDriver = null;\n this._ready = false;\n this._dbInfo = null;\n\n this._wrapLibraryMethodsWithReady();\n this.setDriver(this._config.driver)[\"catch\"](function () {});\n }\n\n // Set any config values for localForage; can be called anytime before\n // the first API call (e.g. `getItem`, `setItem`).\n // We loop through options so we don't overwrite existing config\n // values.\n\n\n LocalForage.prototype.config = function config(options) {\n // If the options argument is an object, we use it to set values.\n // Otherwise, we return either a specified config value or all\n // config values.\n if ((typeof options === 'undefined' ? 'undefined' : _typeof(options)) === 'object') {\n // If localforage is ready and fully initialized, we can't set\n // any new configuration values. Instead, we return an error.\n if (this._ready) {\n return new Error(\"Can't call config() after localforage \" + 'has been used.');\n }\n\n for (var i in options) {\n if (i === 'storeName') {\n options[i] = options[i].replace(/\\W/g, '_');\n }\n\n if (i === 'version' && typeof options[i] !== 'number') {\n return new Error('Database version must be a number.');\n }\n\n this._config[i] = options[i];\n }\n\n // after all config options are set and\n // the driver option is used, try setting it\n if ('driver' in options && options.driver) {\n return this.setDriver(this._config.driver);\n }\n\n return true;\n } else if (typeof options === 'string') {\n return this._config[options];\n } else {\n return this._config;\n }\n };\n\n // Used to define a custom driver, shared across all instances of\n // localForage.\n\n\n LocalForage.prototype.defineDriver = function defineDriver(driverObject, callback, errorCallback) {\n var promise = new Promise$1(function (resolve, reject) {\n try {\n var driverName = driverObject._driver;\n var complianceError = new Error('Custom driver not compliant; see ' + 'https://mozilla.github.io/localForage/#definedriver');\n\n // A driver name should be defined and not overlap with the\n // library-defined, default drivers.\n if (!driverObject._driver) {\n reject(complianceError);\n return;\n }\n\n var driverMethods = LibraryMethods.concat('_initStorage');\n for (var i = 0, len = driverMethods.length; i < len; i++) {\n var driverMethodName = driverMethods[i];\n\n // when the property is there,\n // it should be a method even when optional\n var isRequired = !includes(OptionalDriverMethods, driverMethodName);\n if ((isRequired || driverObject[driverMethodName]) && typeof driverObject[driverMethodName] !== 'function') {\n reject(complianceError);\n return;\n }\n }\n\n var configureMissingMethods = function configureMissingMethods() {\n var methodNotImplementedFactory = function methodNotImplementedFactory(methodName) {\n return function () {\n var error = new Error('Method ' + methodName + ' is not implemented by the current driver');\n var promise = Promise$1.reject(error);\n executeCallback(promise, arguments[arguments.length - 1]);\n return promise;\n };\n };\n\n for (var _i = 0, _len = OptionalDriverMethods.length; _i < _len; _i++) {\n var optionalDriverMethod = OptionalDriverMethods[_i];\n if (!driverObject[optionalDriverMethod]) {\n driverObject[optionalDriverMethod] = methodNotImplementedFactory(optionalDriverMethod);\n }\n }\n };\n\n configureMissingMethods();\n\n var setDriverSupport = function setDriverSupport(support) {\n if (DefinedDrivers[driverName]) {\n console.info('Redefining LocalForage driver: ' + driverName);\n }\n DefinedDrivers[driverName] = driverObject;\n DriverSupport[driverName] = support;\n // don't use a then, so that we can define\n // drivers that have simple _support methods\n // in a blocking manner\n resolve();\n };\n\n if ('_support' in driverObject) {\n if (driverObject._support && typeof driverObject._support === 'function') {\n driverObject._support().then(setDriverSupport, reject);\n } else {\n setDriverSupport(!!driverObject._support);\n }\n } else {\n setDriverSupport(true);\n }\n } catch (e) {\n reject(e);\n }\n });\n\n executeTwoCallbacks(promise, callback, errorCallback);\n return promise;\n };\n\n LocalForage.prototype.driver = function driver() {\n return this._driver || null;\n };\n\n LocalForage.prototype.getDriver = function getDriver(driverName, callback, errorCallback) {\n var getDriverPromise = DefinedDrivers[driverName] ? Promise$1.resolve(DefinedDrivers[driverName]) : Promise$1.reject(new Error('Driver not found.'));\n\n executeTwoCallbacks(getDriverPromise, callback, errorCallback);\n return getDriverPromise;\n };\n\n LocalForage.prototype.getSerializer = function getSerializer(callback) {\n var serializerPromise = Promise$1.resolve(localforageSerializer);\n executeTwoCallbacks(serializerPromise, callback);\n return serializerPromise;\n };\n\n LocalForage.prototype.ready = function ready(callback) {\n var self = this;\n\n var promise = self._driverSet.then(function () {\n if (self._ready === null) {\n self._ready = self._initDriver();\n }\n\n return self._ready;\n });\n\n executeTwoCallbacks(promise, callback, callback);\n return promise;\n };\n\n LocalForage.prototype.setDriver = function setDriver(drivers, callback, errorCallback) {\n var self = this;\n\n if (!isArray(drivers)) {\n drivers = [drivers];\n }\n\n var supportedDrivers = this._getSupportedDrivers(drivers);\n\n function setDriverToConfig() {\n self._config.driver = self.driver();\n }\n\n function extendSelfWithDriver(driver) {\n self._extend(driver);\n setDriverToConfig();\n\n self._ready = self._initStorage(self._config);\n return self._ready;\n }\n\n function initDriver(supportedDrivers) {\n return function () {\n var currentDriverIndex = 0;\n\n function driverPromiseLoop() {\n while (currentDriverIndex < supportedDrivers.length) {\n var driverName = supportedDrivers[currentDriverIndex];\n currentDriverIndex++;\n\n self._dbInfo = null;\n self._ready = null;\n\n return self.getDriver(driverName).then(extendSelfWithDriver)[\"catch\"](driverPromiseLoop);\n }\n\n setDriverToConfig();\n var error = new Error('No available storage method found.');\n self._driverSet = Promise$1.reject(error);\n return self._driverSet;\n }\n\n return driverPromiseLoop();\n };\n }\n\n // There might be a driver initialization in progress\n // so wait for it to finish in order to avoid a possible\n // race condition to set _dbInfo\n var oldDriverSetDone = this._driverSet !== null ? this._driverSet[\"catch\"](function () {\n return Promise$1.resolve();\n }) : Promise$1.resolve();\n\n this._driverSet = oldDriverSetDone.then(function () {\n var driverName = supportedDrivers[0];\n self._dbInfo = null;\n self._ready = null;\n\n return self.getDriver(driverName).then(function (driver) {\n self._driver = driver._driver;\n setDriverToConfig();\n self._wrapLibraryMethodsWithReady();\n self._initDriver = initDriver(supportedDrivers);\n });\n })[\"catch\"](function () {\n setDriverToConfig();\n var error = new Error('No available storage method found.');\n self._driverSet = Promise$1.reject(error);\n return self._driverSet;\n });\n\n executeTwoCallbacks(this._driverSet, callback, errorCallback);\n return this._driverSet;\n };\n\n LocalForage.prototype.supports = function supports(driverName) {\n return !!DriverSupport[driverName];\n };\n\n LocalForage.prototype._extend = function _extend(libraryMethodsAndProperties) {\n extend(this, libraryMethodsAndProperties);\n };\n\n LocalForage.prototype._getSupportedDrivers = function _getSupportedDrivers(drivers) {\n var supportedDrivers = [];\n for (var i = 0, len = drivers.length; i < len; i++) {\n var driverName = drivers[i];\n if (this.supports(driverName)) {\n supportedDrivers.push(driverName);\n }\n }\n return supportedDrivers;\n };\n\n LocalForage.prototype._wrapLibraryMethodsWithReady = function _wrapLibraryMethodsWithReady() {\n // Add a stub for each driver API method that delays the call to the\n // corresponding driver method until localForage is ready. These stubs\n // will be replaced by the driver methods as soon as the driver is\n // loaded, so there is no performance impact.\n for (var i = 0, len = LibraryMethods.length; i < len; i++) {\n callWhenReady(this, LibraryMethods[i]);\n }\n };\n\n LocalForage.prototype.createInstance = function createInstance(options) {\n return new LocalForage(options);\n };\n\n return LocalForage;\n}();\n\n// The actual localForage object that we expose as a module or via a\n// global. It's extended by pulling in one of our other libraries.\n\n\nvar localforage_js = new LocalForage();\n\nmodule.exports = localforage_js;\n\n},{\"3\":3}]},{},[4])(4)\n});\n","'use strict';\n\nfunction hasKey(obj, keys) {\n\tvar o = obj;\n\tkeys.slice(0, -1).forEach(function (key) {\n\t\to = o[key] || {};\n\t});\n\n\tvar key = keys[keys.length - 1];\n\treturn key in o;\n}\n\nfunction isNumber(x) {\n\tif (typeof x === 'number') { return true; }\n\tif ((/^0x[0-9a-f]+$/i).test(x)) { return true; }\n\treturn (/^[-+]?(?:\\d+(?:\\.\\d*)?|\\.\\d+)(e[-+]?\\d+)?$/).test(x);\n}\n\nfunction isConstructorOrProto(obj, key) {\n\treturn (key === 'constructor' && typeof obj[key] === 'function') || key === '__proto__';\n}\n\nmodule.exports = function (args, opts) {\n\tif (!opts) { opts = {}; }\n\n\tvar flags = {\n\t\tbools: {},\n\t\tstrings: {},\n\t\tunknownFn: null,\n\t};\n\n\tif (typeof opts.unknown === 'function') {\n\t\tflags.unknownFn = opts.unknown;\n\t}\n\n\tif (typeof opts.boolean === 'boolean' && opts.boolean) {\n\t\tflags.allBools = true;\n\t} else {\n\t\t[].concat(opts.boolean).filter(Boolean).forEach(function (key) {\n\t\t\tflags.bools[key] = true;\n\t\t});\n\t}\n\n\tvar aliases = {};\n\n\tfunction aliasIsBoolean(key) {\n\t\treturn aliases[key].some(function (x) {\n\t\t\treturn flags.bools[x];\n\t\t});\n\t}\n\n\tObject.keys(opts.alias || {}).forEach(function (key) {\n\t\taliases[key] = [].concat(opts.alias[key]);\n\t\taliases[key].forEach(function (x) {\n\t\t\taliases[x] = [key].concat(aliases[key].filter(function (y) {\n\t\t\t\treturn x !== y;\n\t\t\t}));\n\t\t});\n\t});\n\n\t[].concat(opts.string).filter(Boolean).forEach(function (key) {\n\t\tflags.strings[key] = true;\n\t\tif (aliases[key]) {\n\t\t\t[].concat(aliases[key]).forEach(function (k) {\n\t\t\t\tflags.strings[k] = true;\n\t\t\t});\n\t\t}\n\t});\n\n\tvar defaults = opts.default || {};\n\n\tvar argv = { _: [] };\n\n\tfunction argDefined(key, arg) {\n\t\treturn (flags.allBools && (/^--[^=]+$/).test(arg))\n\t\t\t|| flags.strings[key]\n\t\t\t|| flags.bools[key]\n\t\t\t|| aliases[key];\n\t}\n\n\tfunction setKey(obj, keys, value) {\n\t\tvar o = obj;\n\t\tfor (var i = 0; i < keys.length - 1; i++) {\n\t\t\tvar key = keys[i];\n\t\t\tif (isConstructorOrProto(o, key)) { return; }\n\t\t\tif (o[key] === undefined) { o[key] = {}; }\n\t\t\tif (\n\t\t\t\to[key] === Object.prototype\n\t\t\t\t|| o[key] === Number.prototype\n\t\t\t\t|| o[key] === String.prototype\n\t\t\t) {\n\t\t\t\to[key] = {};\n\t\t\t}\n\t\t\tif (o[key] === Array.prototype) { o[key] = []; }\n\t\t\to = o[key];\n\t\t}\n\n\t\tvar lastKey = keys[keys.length - 1];\n\t\tif (isConstructorOrProto(o, lastKey)) { return; }\n\t\tif (\n\t\t\to === Object.prototype\n\t\t\t|| o === Number.prototype\n\t\t\t|| o === String.prototype\n\t\t) {\n\t\t\to = {};\n\t\t}\n\t\tif (o === Array.prototype) { o = []; }\n\t\tif (o[lastKey] === undefined || flags.bools[lastKey] || typeof o[lastKey] === 'boolean') {\n\t\t\to[lastKey] = value;\n\t\t} else if (Array.isArray(o[lastKey])) {\n\t\t\to[lastKey].push(value);\n\t\t} else {\n\t\t\to[lastKey] = [o[lastKey], value];\n\t\t}\n\t}\n\n\tfunction setArg(key, val, arg) {\n\t\tif (arg && flags.unknownFn && !argDefined(key, arg)) {\n\t\t\tif (flags.unknownFn(arg) === false) { return; }\n\t\t}\n\n\t\tvar value = !flags.strings[key] && isNumber(val)\n\t\t\t? Number(val)\n\t\t\t: val;\n\t\tsetKey(argv, key.split('.'), value);\n\n\t\t(aliases[key] || []).forEach(function (x) {\n\t\t\tsetKey(argv, x.split('.'), value);\n\t\t});\n\t}\n\n\tObject.keys(flags.bools).forEach(function (key) {\n\t\tsetArg(key, defaults[key] === undefined ? false : defaults[key]);\n\t});\n\n\tvar notFlags = [];\n\n\tif (args.indexOf('--') !== -1) {\n\t\tnotFlags = args.slice(args.indexOf('--') + 1);\n\t\targs = args.slice(0, args.indexOf('--'));\n\t}\n\n\tfor (var i = 0; i < args.length; i++) {\n\t\tvar arg = args[i];\n\t\tvar key;\n\t\tvar next;\n\n\t\tif ((/^--.+=/).test(arg)) {\n\t\t\t// Using [\\s\\S] instead of . because js doesn't support the\n\t\t\t// 'dotall' regex modifier. See:\n\t\t\t// http://stackoverflow.com/a/1068308/13216\n\t\t\tvar m = arg.match(/^--([^=]+)=([\\s\\S]*)$/);\n\t\t\tkey = m[1];\n\t\t\tvar value = m[2];\n\t\t\tif (flags.bools[key]) {\n\t\t\t\tvalue = value !== 'false';\n\t\t\t}\n\t\t\tsetArg(key, value, arg);\n\t\t} else if ((/^--no-.+/).test(arg)) {\n\t\t\tkey = arg.match(/^--no-(.+)/)[1];\n\t\t\tsetArg(key, false, arg);\n\t\t} else if ((/^--.+/).test(arg)) {\n\t\t\tkey = arg.match(/^--(.+)/)[1];\n\t\t\tnext = args[i + 1];\n\t\t\tif (\n\t\t\t\tnext !== undefined\n\t\t\t\t&& !(/^(-|--)[^-]/).test(next)\n\t\t\t\t&& !flags.bools[key]\n\t\t\t\t&& !flags.allBools\n\t\t\t\t&& (aliases[key] ? !aliasIsBoolean(key) : true)\n\t\t\t) {\n\t\t\t\tsetArg(key, next, arg);\n\t\t\t\ti += 1;\n\t\t\t} else if ((/^(true|false)$/).test(next)) {\n\t\t\t\tsetArg(key, next === 'true', arg);\n\t\t\t\ti += 1;\n\t\t\t} else {\n\t\t\t\tsetArg(key, flags.strings[key] ? '' : true, arg);\n\t\t\t}\n\t\t} else if ((/^-[^-]+/).test(arg)) {\n\t\t\tvar letters = arg.slice(1, -1).split('');\n\n\t\t\tvar broken = false;\n\t\t\tfor (var j = 0; j < letters.length; j++) {\n\t\t\t\tnext = arg.slice(j + 2);\n\n\t\t\t\tif (next === '-') {\n\t\t\t\t\tsetArg(letters[j], next, arg);\n\t\t\t\t\tcontinue;\n\t\t\t\t}\n\n\t\t\t\tif ((/[A-Za-z]/).test(letters[j]) && next[0] === '=') {\n\t\t\t\t\tsetArg(letters[j], next.slice(1), arg);\n\t\t\t\t\tbroken = true;\n\t\t\t\t\tbreak;\n\t\t\t\t}\n\n\t\t\t\tif (\n\t\t\t\t\t(/[A-Za-z]/).test(letters[j])\n\t\t\t\t\t&& (/-?\\d+(\\.\\d*)?(e-?\\d+)?$/).test(next)\n\t\t\t\t) {\n\t\t\t\t\tsetArg(letters[j], next, arg);\n\t\t\t\t\tbroken = true;\n\t\t\t\t\tbreak;\n\t\t\t\t}\n\n\t\t\t\tif (letters[j + 1] && letters[j + 1].match(/\\W/)) {\n\t\t\t\t\tsetArg(letters[j], arg.slice(j + 2), arg);\n\t\t\t\t\tbroken = true;\n\t\t\t\t\tbreak;\n\t\t\t\t} else {\n\t\t\t\t\tsetArg(letters[j], flags.strings[letters[j]] ? '' : true, arg);\n\t\t\t\t}\n\t\t\t}\n\n\t\t\tkey = arg.slice(-1)[0];\n\t\t\tif (!broken && key !== '-') {\n\t\t\t\tif (\n\t\t\t\t\targs[i + 1]\n\t\t\t\t\t&& !(/^(-|--)[^-]/).test(args[i + 1])\n\t\t\t\t\t&& !flags.bools[key]\n\t\t\t\t\t&& (aliases[key] ? !aliasIsBoolean(key) : true)\n\t\t\t\t) {\n\t\t\t\t\tsetArg(key, args[i + 1], arg);\n\t\t\t\t\ti += 1;\n\t\t\t\t} else if (args[i + 1] && (/^(true|false)$/).test(args[i + 1])) {\n\t\t\t\t\tsetArg(key, args[i + 1] === 'true', arg);\n\t\t\t\t\ti += 1;\n\t\t\t\t} else {\n\t\t\t\t\tsetArg(key, flags.strings[key] ? '' : true, arg);\n\t\t\t\t}\n\t\t\t}\n\t\t} else {\n\t\t\tif (!flags.unknownFn || flags.unknownFn(arg) !== false) {\n\t\t\t\targv._.push(flags.strings._ || !isNumber(arg) ? arg : Number(arg));\n\t\t\t}\n\t\t\tif (opts.stopEarly) {\n\t\t\t\targv._.push.apply(argv._, args.slice(i + 1));\n\t\t\t\tbreak;\n\t\t\t}\n\t\t}\n\t}\n\n\tObject.keys(defaults).forEach(function (k) {\n\t\tif (!hasKey(argv, k.split('.'))) {\n\t\t\tsetKey(argv, k.split('.'), defaults[k]);\n\n\t\t\t(aliases[k] || []).forEach(function (x) {\n\t\t\t\tsetKey(argv, x.split('.'), defaults[k]);\n\t\t\t});\n\t\t}\n\t});\n\n\tif (opts['--']) {\n\t\targv['--'] = notFlags.slice();\n\t} else {\n\t\tnotFlags.forEach(function (k) {\n\t\t\targv._.push(k);\n\t\t});\n\t}\n\n\treturn argv;\n};\n","(function (global, factory) {\n\ttypeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :\n\ttypeof define === 'function' && define.amd ? define(['exports'], factory) :\n\t(factory((global.Mock = global.Mock || {})));\n}(this, (function (exports) { 'use strict';\n\nvar commonjsGlobal = typeof window !== 'undefined' ? window : typeof global !== 'undefined' ? global : typeof self !== 'undefined' ? self : {};\n\n/**\n * Check if we're required to add a port number.\n *\n * @see https://url.spec.whatwg.org/#default-port\n * @param {Number|String} port Port number we need to check\n * @param {String} protocol Protocol we need to check against.\n * @returns {Boolean} Is it a default port for the given protocol\n * @api private\n */\nvar requiresPort = function required(port, protocol) {\n protocol = protocol.split(':')[0];\n port = +port;\n\n if (!port) { return false; }\n\n switch (protocol) {\n case 'http':\n case 'ws':\n return port !== 80;\n\n case 'https':\n case 'wss':\n return port !== 443;\n\n case 'ftp':\n return port !== 21;\n\n case 'gopher':\n return port !== 70;\n\n case 'file':\n return false;\n }\n\n return port !== 0;\n};\n\nvar has = Object.prototype.hasOwnProperty;\nvar undef;\n\n/**\n * Decode a URI encoded string.\n *\n * @param {String} input The URI encoded string.\n * @returns {String|Null} The decoded string.\n * @api private\n */\nfunction decode(input) {\n try {\n return decodeURIComponent(input.replace(/\\+/g, ' '));\n } catch (e) {\n return null;\n }\n}\n\n/**\n * Attempts to encode a given input.\n *\n * @param {String} input The string that needs to be encoded.\n * @returns {String|Null} The encoded string.\n * @api private\n */\nfunction encode(input) {\n try {\n return encodeURIComponent(input);\n } catch (e) {\n return null;\n }\n}\n\n/**\n * Simple query string parser.\n *\n * @param {String} query The query string that needs to be parsed.\n * @returns {Object}\n * @api public\n */\nfunction querystring(query) {\n var parser = /([^=?#&]+)=?([^&]*)/g\n , result = {}\n , part;\n\n while (part = parser.exec(query)) {\n var key = decode(part[1])\n , value = decode(part[2]);\n\n //\n // Prevent overriding of existing properties. This ensures that build-in\n // methods like `toString` or __proto__ are not overriden by malicious\n // querystrings.\n //\n // In the case if failed decoding, we want to omit the key/value pairs\n // from the result.\n //\n if (key === null || value === null || key in result) { continue; }\n result[key] = value;\n }\n\n return result;\n}\n\n/**\n * Transform a query string to an object.\n *\n * @param {Object} obj Object that should be transformed.\n * @param {String} prefix Optional prefix.\n * @returns {String}\n * @api public\n */\nfunction querystringify(obj, prefix) {\n prefix = prefix || '';\n\n var pairs = []\n , value\n , key;\n\n //\n // Optionally prefix with a '?' if needed\n //\n if ('string' !== typeof prefix) { prefix = '?'; }\n\n for (key in obj) {\n if (has.call(obj, key)) {\n value = obj[key];\n\n //\n // Edge cases where we actually want to encode the value to an empty\n // string instead of the stringified value.\n //\n if (!value && (value === null || value === undef || isNaN(value))) {\n value = '';\n }\n\n key = encode(key);\n value = encode(value);\n\n //\n // If we failed to encode the strings, we should bail out as we don't\n // want to add invalid strings to the query.\n //\n if (key === null || value === null) { continue; }\n pairs.push(key +'='+ value);\n }\n }\n\n return pairs.length ? prefix + pairs.join('&') : '';\n}\n\n//\n// Expose the module.\n//\nvar stringify = querystringify;\nvar parse = querystring;\n\nvar querystringify_1 = {\n\tstringify: stringify,\n\tparse: parse\n};\n\nvar CRHTLF = /[\\n\\r\\t]/g;\nvar slashes = /^[A-Za-z][A-Za-z0-9+-.]*:\\/\\//;\nvar protocolre = /^([a-z][a-z0-9.+-]*:)?(\\/\\/)?([\\\\/]+)?([\\S\\s]*)/i;\nvar windowsDriveLetter = /^[a-zA-Z]:/;\nvar whitespace = /^[\\x00-\\x20\\u00a0\\u1680\\u2000-\\u200a\\u2028\\u2029\\u202f\\u205f\\u3000\\ufeff]+/;\n\n/**\n * Trim a given string.\n *\n * @param {String} str String to trim.\n * @public\n */\nfunction trimLeft(str) {\n return (str ? str : '').toString().replace(whitespace, '');\n}\n\n/**\n * These are the parse rules for the URL parser, it informs the parser\n * about:\n *\n * 0. The char it Needs to parse, if it's a string it should be done using\n * indexOf, RegExp using exec and NaN means set as current value.\n * 1. The property we should set when parsing this value.\n * 2. Indication if it's backwards or forward parsing, when set as number it's\n * the value of extra chars that should be split off.\n * 3. Inherit from location if non existing in the parser.\n * 4. `toLowerCase` the resulting value.\n */\nvar rules = [\n ['#', 'hash'], // Extract from the back.\n ['?', 'query'], // Extract from the back.\n function sanitize(address, url) { // Sanitize what is left of the address\n return isSpecial(url.protocol) ? address.replace(/\\\\/g, '/') : address;\n },\n ['/', 'pathname'], // Extract from the back.\n ['@', 'auth', 1], // Extract from the front.\n [NaN, 'host', undefined, 1, 1], // Set left over value.\n [/:(\\d*)$/, 'port', undefined, 1], // RegExp the back.\n [NaN, 'hostname', undefined, 1, 1] // Set left over.\n];\n\n/**\n * These properties should not be copied or inherited from. This is only needed\n * for all non blob URL's as a blob URL does not include a hash, only the\n * origin.\n *\n * @type {Object}\n * @private\n */\nvar ignore = { hash: 1, query: 1 };\n\n/**\n * The location object differs when your code is loaded through a normal page,\n * Worker or through a worker using a blob. And with the blobble begins the\n * trouble as the location object will contain the URL of the blob, not the\n * location of the page where our code is loaded in. The actual origin is\n * encoded in the `pathname` so we can thankfully generate a good \"default\"\n * location from it so we can generate proper relative URL's again.\n *\n * @param {Object|String} loc Optional default location object.\n * @returns {Object} lolcation object.\n * @public\n */\nfunction lolcation(loc) {\n var globalVar;\n\n if (typeof window !== 'undefined') { globalVar = window; }\n else if (typeof commonjsGlobal !== 'undefined') { globalVar = commonjsGlobal; }\n else if (typeof self !== 'undefined') { globalVar = self; }\n else { globalVar = {}; }\n\n var location = globalVar.location || {};\n loc = loc || location;\n\n var finaldestination = {}\n , type = typeof loc\n , key;\n\n if ('blob:' === loc.protocol) {\n finaldestination = new Url(unescape(loc.pathname), {});\n } else if ('string' === type) {\n finaldestination = new Url(loc, {});\n for (key in ignore) { delete finaldestination[key]; }\n } else if ('object' === type) {\n for (key in loc) {\n if (key in ignore) { continue; }\n finaldestination[key] = loc[key];\n }\n\n if (finaldestination.slashes === undefined) {\n finaldestination.slashes = slashes.test(loc.href);\n }\n }\n\n return finaldestination;\n}\n\n/**\n * Check whether a protocol scheme is special.\n *\n * @param {String} The protocol scheme of the URL\n * @return {Boolean} `true` if the protocol scheme is special, else `false`\n * @private\n */\nfunction isSpecial(scheme) {\n return (\n scheme === 'file:' ||\n scheme === 'ftp:' ||\n scheme === 'http:' ||\n scheme === 'https:' ||\n scheme === 'ws:' ||\n scheme === 'wss:'\n );\n}\n\n/**\n * @typedef ProtocolExtract\n * @type Object\n * @property {String} protocol Protocol matched in the URL, in lowercase.\n * @property {Boolean} slashes `true` if protocol is followed by \"//\", else `false`.\n * @property {String} rest Rest of the URL that is not part of the protocol.\n */\n\n/**\n * Extract protocol information from a URL with/without double slash (\"//\").\n *\n * @param {String} address URL we want to extract from.\n * @param {Object} location\n * @return {ProtocolExtract} Extracted information.\n * @private\n */\nfunction extractProtocol(address, location) {\n address = trimLeft(address);\n address = address.replace(CRHTLF, '');\n location = location || {};\n\n var match = protocolre.exec(address);\n var protocol = match[1] ? match[1].toLowerCase() : '';\n var forwardSlashes = !!match[2];\n var otherSlashes = !!match[3];\n var slashesCount = 0;\n var rest;\n\n if (forwardSlashes) {\n if (otherSlashes) {\n rest = match[2] + match[3] + match[4];\n slashesCount = match[2].length + match[3].length;\n } else {\n rest = match[2] + match[4];\n slashesCount = match[2].length;\n }\n } else {\n if (otherSlashes) {\n rest = match[3] + match[4];\n slashesCount = match[3].length;\n } else {\n rest = match[4];\n }\n }\n\n if (protocol === 'file:') {\n if (slashesCount >= 2) {\n rest = rest.slice(2);\n }\n } else if (isSpecial(protocol)) {\n rest = match[4];\n } else if (protocol) {\n if (forwardSlashes) {\n rest = rest.slice(2);\n }\n } else if (slashesCount >= 2 && isSpecial(location.protocol)) {\n rest = match[4];\n }\n\n return {\n protocol: protocol,\n slashes: forwardSlashes || isSpecial(protocol),\n slashesCount: slashesCount,\n rest: rest\n };\n}\n\n/**\n * Resolve a relative URL pathname against a base URL pathname.\n *\n * @param {String} relative Pathname of the relative URL.\n * @param {String} base Pathname of the base URL.\n * @return {String} Resolved pathname.\n * @private\n */\nfunction resolve(relative, base) {\n if (relative === '') { return base; }\n\n var path = (base || '/').split('/').slice(0, -1).concat(relative.split('/'))\n , i = path.length\n , last = path[i - 1]\n , unshift = false\n , up = 0;\n\n while (i--) {\n if (path[i] === '.') {\n path.splice(i, 1);\n } else if (path[i] === '..') {\n path.splice(i, 1);\n up++;\n } else if (up) {\n if (i === 0) { unshift = true; }\n path.splice(i, 1);\n up--;\n }\n }\n\n if (unshift) { path.unshift(''); }\n if (last === '.' || last === '..') { path.push(''); }\n\n return path.join('/');\n}\n\n/**\n * The actual URL instance. Instead of returning an object we've opted-in to\n * create an actual constructor as it's much more memory efficient and\n * faster and it pleases my OCD.\n *\n * It is worth noting that we should not use `URL` as class name to prevent\n * clashes with the global URL instance that got introduced in browsers.\n *\n * @constructor\n * @param {String} address URL we want to parse.\n * @param {Object|String} [location] Location defaults for relative paths.\n * @param {Boolean|Function} [parser] Parser for the query string.\n * @private\n */\nfunction Url(address, location, parser) {\n address = trimLeft(address);\n address = address.replace(CRHTLF, '');\n\n if (!(this instanceof Url)) {\n return new Url(address, location, parser);\n }\n\n var relative, extracted, parse, instruction, index, key\n , instructions = rules.slice()\n , type = typeof location\n , url = this\n , i = 0;\n\n //\n // The following if statements allows this module two have compatibility with\n // 2 different API:\n //\n // 1. Node.js's `url.parse` api which accepts a URL, boolean as arguments\n // where the boolean indicates that the query string should also be parsed.\n //\n // 2. The `URL` interface of the browser which accepts a URL, object as\n // arguments. The supplied object will be used as default values / fall-back\n // for relative paths.\n //\n if ('object' !== type && 'string' !== type) {\n parser = location;\n location = null;\n }\n\n if (parser && 'function' !== typeof parser) { parser = querystringify_1.parse; }\n\n location = lolcation(location);\n\n //\n // Extract protocol information before running the instructions.\n //\n extracted = extractProtocol(address || '', location);\n relative = !extracted.protocol && !extracted.slashes;\n url.slashes = extracted.slashes || relative && location.slashes;\n url.protocol = extracted.protocol || location.protocol || '';\n address = extracted.rest;\n\n //\n // When the authority component is absent the URL starts with a path\n // component.\n //\n if (\n extracted.protocol === 'file:' && (\n extracted.slashesCount !== 2 || windowsDriveLetter.test(address)) ||\n (!extracted.slashes &&\n (extracted.protocol ||\n extracted.slashesCount < 2 ||\n !isSpecial(url.protocol)))\n ) {\n instructions[3] = [/(.*)/, 'pathname'];\n }\n\n for (; i < instructions.length; i++) {\n instruction = instructions[i];\n\n if (typeof instruction === 'function') {\n address = instruction(address, url);\n continue;\n }\n\n parse = instruction[0];\n key = instruction[1];\n\n if (parse !== parse) {\n url[key] = address;\n } else if ('string' === typeof parse) {\n index = parse === '@'\n ? address.lastIndexOf(parse)\n : address.indexOf(parse);\n\n if (~index) {\n if ('number' === typeof instruction[2]) {\n url[key] = address.slice(0, index);\n address = address.slice(index + instruction[2]);\n } else {\n url[key] = address.slice(index);\n address = address.slice(0, index);\n }\n }\n } else if ((index = parse.exec(address))) {\n url[key] = index[1];\n address = address.slice(0, index.index);\n }\n\n url[key] = url[key] || (\n relative && instruction[3] ? location[key] || '' : ''\n );\n\n //\n // Hostname, host and protocol should be lowercased so they can be used to\n // create a proper `origin`.\n //\n if (instruction[4]) { url[key] = url[key].toLowerCase(); }\n }\n\n //\n // Also parse the supplied query string in to an object. If we're supplied\n // with a custom parser as function use that instead of the default build-in\n // parser.\n //\n if (parser) { url.query = parser(url.query); }\n\n //\n // If the URL is relative, resolve the pathname against the base URL.\n //\n if (\n relative\n && location.slashes\n && url.pathname.charAt(0) !== '/'\n && (url.pathname !== '' || location.pathname !== '')\n ) {\n url.pathname = resolve(url.pathname, location.pathname);\n }\n\n //\n // Default to a / for pathname if none exists. This normalizes the URL\n // to always have a /\n //\n if (url.pathname.charAt(0) !== '/' && isSpecial(url.protocol)) {\n url.pathname = '/' + url.pathname;\n }\n\n //\n // We should not add port numbers if they are already the default port number\n // for a given protocol. As the host also contains the port number we're going\n // override it with the hostname which contains no port number.\n //\n if (!requiresPort(url.port, url.protocol)) {\n url.host = url.hostname;\n url.port = '';\n }\n\n //\n // Parse down the `auth` for the username and password.\n //\n url.username = url.password = '';\n\n if (url.auth) {\n index = url.auth.indexOf(':');\n\n if (~index) {\n url.username = url.auth.slice(0, index);\n url.username = encodeURIComponent(decodeURIComponent(url.username));\n\n url.password = url.auth.slice(index + 1);\n url.password = encodeURIComponent(decodeURIComponent(url.password));\n } else {\n url.username = encodeURIComponent(decodeURIComponent(url.auth));\n }\n\n url.auth = url.password ? url.username +':'+ url.password : url.username;\n }\n\n url.origin = url.protocol !== 'file:' && isSpecial(url.protocol) && url.host\n ? url.protocol +'//'+ url.host\n : 'null';\n\n //\n // The href is just the compiled result.\n //\n url.href = url.toString();\n}\n\n/**\n * This is convenience method for changing properties in the URL instance to\n * insure that they all propagate correctly.\n *\n * @param {String} part Property we need to adjust.\n * @param {Mixed} value The newly assigned value.\n * @param {Boolean|Function} fn When setting the query, it will be the function\n * used to parse the query.\n * When setting the protocol, double slash will be\n * removed from the final url if it is true.\n * @returns {URL} URL instance for chaining.\n * @public\n */\nfunction set(part, value, fn) {\n var url = this;\n\n switch (part) {\n case 'query':\n if ('string' === typeof value && value.length) {\n value = (fn || querystringify_1.parse)(value);\n }\n\n url[part] = value;\n break;\n\n case 'port':\n url[part] = value;\n\n if (!requiresPort(value, url.protocol)) {\n url.host = url.hostname;\n url[part] = '';\n } else if (value) {\n url.host = url.hostname +':'+ value;\n }\n\n break;\n\n case 'hostname':\n url[part] = value;\n\n if (url.port) { value += ':'+ url.port; }\n url.host = value;\n break;\n\n case 'host':\n url[part] = value;\n\n if (/:\\d+$/.test(value)) {\n value = value.split(':');\n url.port = value.pop();\n url.hostname = value.join(':');\n } else {\n url.hostname = value;\n url.port = '';\n }\n\n break;\n\n case 'protocol':\n url.protocol = value.toLowerCase();\n url.slashes = !fn;\n break;\n\n case 'pathname':\n case 'hash':\n if (value) {\n var char = part === 'pathname' ? '/' : '#';\n url[part] = value.charAt(0) !== char ? char + value : value;\n } else {\n url[part] = value;\n }\n break;\n\n case 'username':\n case 'password':\n url[part] = encodeURIComponent(value);\n break;\n\n case 'auth':\n var index = value.indexOf(':');\n\n if (~index) {\n url.username = value.slice(0, index);\n url.username = encodeURIComponent(decodeURIComponent(url.username));\n\n url.password = value.slice(index + 1);\n url.password = encodeURIComponent(decodeURIComponent(url.password));\n } else {\n url.username = encodeURIComponent(decodeURIComponent(value));\n }\n }\n\n for (var i = 0; i < rules.length; i++) {\n var ins = rules[i];\n\n if (ins[4]) { url[ins[1]] = url[ins[1]].toLowerCase(); }\n }\n\n url.auth = url.password ? url.username +':'+ url.password : url.username;\n\n url.origin = url.protocol !== 'file:' && isSpecial(url.protocol) && url.host\n ? url.protocol +'//'+ url.host\n : 'null';\n\n url.href = url.toString();\n\n return url;\n}\n\n/**\n * Transform the properties back in to a valid and full URL string.\n *\n * @param {Function} stringify Optional query stringify function.\n * @returns {String} Compiled version of the URL.\n * @public\n */\nfunction toString(stringify) {\n if (!stringify || 'function' !== typeof stringify) { stringify = querystringify_1.stringify; }\n\n var query\n , url = this\n , host = url.host\n , protocol = url.protocol;\n\n if (protocol && protocol.charAt(protocol.length - 1) !== ':') { protocol += ':'; }\n\n var result =\n protocol +\n ((url.protocol && url.slashes) || isSpecial(url.protocol) ? '//' : '');\n\n if (url.username) {\n result += url.username;\n if (url.password) { result += ':'+ url.password; }\n result += '@';\n } else if (url.password) {\n result += ':'+ url.password;\n result += '@';\n } else if (\n url.protocol !== 'file:' &&\n isSpecial(url.protocol) &&\n !host &&\n url.pathname !== '/'\n ) {\n //\n // Add back the empty userinfo, otherwise the original invalid URL\n // might be transformed into a valid one with `url.pathname` as host.\n //\n result += '@';\n }\n\n //\n // Trailing colon is removed from `url.host` when it is parsed. If it still\n // ends with a colon, then add back the trailing colon that was removed. This\n // prevents an invalid URL from being transformed into a valid one.\n //\n if (host[host.length - 1] === ':') { host += ':'; }\n result += host + url.pathname;\n\n query = 'object' === typeof url.query ? stringify(url.query) : url.query;\n if (query) { result += '?' !== query.charAt(0) ? '?'+ query : query; }\n\n if (url.hash) { result += url.hash; }\n\n return result;\n}\n\nUrl.prototype = { set: set, toString: toString };\n\n//\n// Expose the URL parser and some additional properties that might be useful for\n// others or testing.\n//\nUrl.extractProtocol = extractProtocol;\nUrl.location = lolcation;\nUrl.trimLeft = trimLeft;\nUrl.qs = querystringify_1;\n\nvar urlParse = Url;\n\n/*\n * This delay allows the thread to finish assigning its on* methods\n * before invoking the delay callback. This is purely a timing hack.\n * http://geekabyte.blogspot.com/2014/01/javascript-effect-of-setting-settimeout.html\n *\n * @param {callback: function} the callback which will be invoked after the timeout\n * @parma {context: object} the context in which to invoke the function\n */\nfunction delay(callback, context) {\n setTimeout(function (timeoutContext) { return callback.call(timeoutContext); }, 4, context);\n}\n\nfunction log(method, message) {\n /* eslint-disable no-console */\n if (typeof process !== 'undefined' && process.env.NODE_ENV !== 'test') {\n console[method].call(null, message);\n }\n /* eslint-enable no-console */\n}\n\nfunction reject(array, callback) {\n if ( array === void 0 ) array = [];\n\n var results = [];\n array.forEach(function (itemInArray) {\n if (!callback(itemInArray)) {\n results.push(itemInArray);\n }\n });\n\n return results;\n}\n\nfunction filter(array, callback) {\n if ( array === void 0 ) array = [];\n\n var results = [];\n array.forEach(function (itemInArray) {\n if (callback(itemInArray)) {\n results.push(itemInArray);\n }\n });\n\n return results;\n}\n\n/*\n * EventTarget is an interface implemented by objects that can\n * receive events and may have listeners for them.\n *\n * https://developer.mozilla.org/en-US/docs/Web/API/EventTarget\n */\nvar EventTarget = function EventTarget() {\n this.listeners = {};\n};\n\n/*\n * Ties a listener function to an event type which can later be invoked via the\n * dispatchEvent method.\n *\n * @param {string} type - the type of event (ie: 'open', 'message', etc.)\n * @param {function} listener - callback function to invoke when an event is dispatched matching the type\n * @param {boolean} useCapture - N/A TODO: implement useCapture functionality\n */\nEventTarget.prototype.addEventListener = function addEventListener (type, listener /* , useCapture */) {\n if (typeof listener === 'function') {\n if (!Array.isArray(this.listeners[type])) {\n this.listeners[type] = [];\n }\n\n // Only add the same function once\n if (filter(this.listeners[type], function (item) { return item === listener; }).length === 0) {\n this.listeners[type].push(listener);\n }\n }\n};\n\n/*\n * Removes the listener so it will no longer be invoked via the dispatchEvent method.\n *\n * @param {string} type - the type of event (ie: 'open', 'message', etc.)\n * @param {function} listener - callback function to invoke when an event is dispatched matching the type\n * @param {boolean} useCapture - N/A TODO: implement useCapture functionality\n */\nEventTarget.prototype.removeEventListener = function removeEventListener (type, removingListener /* , useCapture */) {\n var arrayOfListeners = this.listeners[type];\n this.listeners[type] = reject(arrayOfListeners, function (listener) { return listener === removingListener; });\n};\n\n/*\n * Invokes all listener functions that are listening to the given event.type property. Each\n * listener will be passed the event as the first argument.\n *\n * @param {object} event - event object which will be passed to all listeners of the event.type property\n */\nEventTarget.prototype.dispatchEvent = function dispatchEvent (event) {\n var this$1 = this;\n var customArguments = [], len = arguments.length - 1;\n while ( len-- > 0 ) customArguments[ len ] = arguments[ len + 1 ];\n\n var eventName = event.type;\n var listeners = this.listeners[eventName];\n\n if (!Array.isArray(listeners)) {\n return false;\n }\n\n listeners.forEach(function (listener) {\n if (customArguments.length > 0) {\n listener.apply(this$1, customArguments);\n } else {\n listener.call(this$1, event);\n }\n });\n\n return true;\n};\n\nfunction trimQueryPartFromURL(url) {\n var queryIndex = url.indexOf('?');\n return queryIndex >= 0 ? url.slice(0, queryIndex) : url;\n}\n\n/*\n * The network bridge is a way for the mock websocket object to 'communicate' with\n * all available servers. This is a singleton object so it is important that you\n * clean up urlMap whenever you are finished.\n */\nvar NetworkBridge = function NetworkBridge() {\n this.urlMap = {};\n};\n\n/*\n * Attaches a websocket object to the urlMap hash so that it can find the server\n * it is connected to and the server in turn can find it.\n *\n * @param {object} websocket - websocket object to add to the urlMap hash\n * @param {string} url\n */\nNetworkBridge.prototype.attachWebSocket = function attachWebSocket (websocket, url) {\n var serverURL = trimQueryPartFromURL(url);\n var connectionLookup = this.urlMap[serverURL];\n\n if (connectionLookup && connectionLookup.server && connectionLookup.websockets.indexOf(websocket) === -1) {\n connectionLookup.websockets.push(websocket);\n return connectionLookup.server;\n }\n};\n\n/*\n * Attaches a websocket to a room\n */\nNetworkBridge.prototype.addMembershipToRoom = function addMembershipToRoom (websocket, room) {\n var connectionLookup = this.urlMap[trimQueryPartFromURL(websocket.url)];\n\n if (connectionLookup && connectionLookup.server && connectionLookup.websockets.indexOf(websocket) !== -1) {\n if (!connectionLookup.roomMemberships[room]) {\n connectionLookup.roomMemberships[room] = [];\n }\n\n connectionLookup.roomMemberships[room].push(websocket);\n }\n};\n\n/*\n * Attaches a server object to the urlMap hash so that it can find a websockets\n * which are connected to it and so that websockets can in turn can find it.\n *\n * @param {object} server - server object to add to the urlMap hash\n * @param {string} url\n */\nNetworkBridge.prototype.attachServer = function attachServer (server, url) {\n var serverUrl = trimQueryPartFromURL(url);\n var connectionLookup = this.urlMap[serverUrl];\n\n if (!connectionLookup) {\n this.urlMap[serverUrl] = {\n server: server,\n websockets: [],\n roomMemberships: {}\n };\n\n return server;\n }\n};\n\n/*\n * Finds the server which is 'running' on the given url.\n *\n * @param {string} url - the url to use to find which server is running on it\n */\nNetworkBridge.prototype.serverLookup = function serverLookup (url) {\n var serverURL = trimQueryPartFromURL(url);\n var connectionLookup = this.urlMap[serverURL];\n\n if (connectionLookup) {\n return connectionLookup.server;\n }\n};\n\n/*\n * Finds all websockets which is 'listening' on the given url.\n *\n * @param {string} url - the url to use to find all websockets which are associated with it\n * @param {string} room - if a room is provided, will only return sockets in this room\n * @param {class} broadcaster - socket that is broadcasting and is to be excluded from the lookup\n */\nNetworkBridge.prototype.websocketsLookup = function websocketsLookup (url, room, broadcaster) {\n var serverURL = trimQueryPartFromURL(url);\n var websockets;\n var connectionLookup = this.urlMap[serverURL];\n\n websockets = connectionLookup ? connectionLookup.websockets : [];\n\n if (room) {\n var members = connectionLookup.roomMemberships[room];\n websockets = members || [];\n }\n\n return broadcaster ? websockets.filter(function (websocket) { return websocket !== broadcaster; }) : websockets;\n};\n\n/*\n * Removes the entry associated with the url.\n *\n * @param {string} url\n */\nNetworkBridge.prototype.removeServer = function removeServer (url) {\n delete this.urlMap[trimQueryPartFromURL(url)];\n};\n\n/*\n * Removes the individual websocket from the map of associated websockets.\n *\n * @param {object} websocket - websocket object to remove from the url map\n * @param {string} url\n */\nNetworkBridge.prototype.removeWebSocket = function removeWebSocket (websocket, url) {\n var serverURL = trimQueryPartFromURL(url);\n var connectionLookup = this.urlMap[serverURL];\n\n if (connectionLookup) {\n connectionLookup.websockets = reject(connectionLookup.websockets, function (socket) { return socket === websocket; });\n }\n};\n\n/*\n * Removes a websocket from a room\n */\nNetworkBridge.prototype.removeMembershipFromRoom = function removeMembershipFromRoom (websocket, room) {\n var connectionLookup = this.urlMap[trimQueryPartFromURL(websocket.url)];\n var memberships = connectionLookup.roomMemberships[room];\n\n if (connectionLookup && memberships !== null) {\n connectionLookup.roomMemberships[room] = reject(memberships, function (socket) { return socket === websocket; });\n }\n};\n\nvar networkBridge = new NetworkBridge(); // Note: this is a singleton\n\n/*\n * https://developer.mozilla.org/en-US/docs/Web/API/CloseEvent\n */\nvar CLOSE_CODES = {\n CLOSE_NORMAL: 1000,\n CLOSE_GOING_AWAY: 1001,\n CLOSE_PROTOCOL_ERROR: 1002,\n CLOSE_UNSUPPORTED: 1003,\n CLOSE_NO_STATUS: 1005,\n CLOSE_ABNORMAL: 1006,\n UNSUPPORTED_DATA: 1007,\n POLICY_VIOLATION: 1008,\n CLOSE_TOO_LARGE: 1009,\n MISSING_EXTENSION: 1010,\n INTERNAL_ERROR: 1011,\n SERVICE_RESTART: 1012,\n TRY_AGAIN_LATER: 1013,\n TLS_HANDSHAKE: 1015\n};\n\nvar ERROR_PREFIX = {\n CONSTRUCTOR_ERROR: \"Failed to construct 'WebSocket':\",\n CLOSE_ERROR: \"Failed to execute 'close' on 'WebSocket':\",\n EVENT: {\n CONSTRUCT: \"Failed to construct 'Event':\",\n MESSAGE: \"Failed to construct 'MessageEvent':\",\n CLOSE: \"Failed to construct 'CloseEvent':\"\n }\n};\n\nvar EventPrototype = function EventPrototype () {};\n\nEventPrototype.prototype.stopPropagation = function stopPropagation () {};\nEventPrototype.prototype.stopImmediatePropagation = function stopImmediatePropagation () {};\n\n// if no arguments are passed then the type is set to \"undefined\" on\n// chrome and safari.\nEventPrototype.prototype.initEvent = function initEvent (type, bubbles, cancelable) {\n if ( type === void 0 ) type = 'undefined';\n if ( bubbles === void 0 ) bubbles = false;\n if ( cancelable === void 0 ) cancelable = false;\n\n this.type = \"\" + type;\n this.bubbles = Boolean(bubbles);\n this.cancelable = Boolean(cancelable);\n};\n\nvar Event = (function (EventPrototype$$1) {\n function Event(type, eventInitConfig) {\n if ( eventInitConfig === void 0 ) eventInitConfig = {};\n\n EventPrototype$$1.call(this);\n\n if (!type) {\n throw new TypeError(((ERROR_PREFIX.EVENT_ERROR) + \" 1 argument required, but only 0 present.\"));\n }\n\n if (typeof eventInitConfig !== 'object') {\n throw new TypeError(((ERROR_PREFIX.EVENT_ERROR) + \" parameter 2 ('eventInitDict') is not an object.\"));\n }\n\n var bubbles = eventInitConfig.bubbles;\n var cancelable = eventInitConfig.cancelable;\n\n this.type = \"\" + type;\n this.timeStamp = Date.now();\n this.target = null;\n this.srcElement = null;\n this.returnValue = true;\n this.isTrusted = false;\n this.eventPhase = 0;\n this.defaultPrevented = false;\n this.currentTarget = null;\n this.cancelable = cancelable ? Boolean(cancelable) : false;\n this.cancelBubble = false;\n this.bubbles = bubbles ? Boolean(bubbles) : false;\n }\n\n if ( EventPrototype$$1 ) Event.__proto__ = EventPrototype$$1;\n Event.prototype = Object.create( EventPrototype$$1 && EventPrototype$$1.prototype );\n Event.prototype.constructor = Event;\n\n return Event;\n}(EventPrototype));\n\nvar MessageEvent = (function (EventPrototype$$1) {\n function MessageEvent(type, eventInitConfig) {\n if ( eventInitConfig === void 0 ) eventInitConfig = {};\n\n EventPrototype$$1.call(this);\n\n if (!type) {\n throw new TypeError(((ERROR_PREFIX.EVENT.MESSAGE) + \" 1 argument required, but only 0 present.\"));\n }\n\n if (typeof eventInitConfig !== 'object') {\n throw new TypeError(((ERROR_PREFIX.EVENT.MESSAGE) + \" parameter 2 ('eventInitDict') is not an object\"));\n }\n\n var bubbles = eventInitConfig.bubbles;\n var cancelable = eventInitConfig.cancelable;\n var data = eventInitConfig.data;\n var origin = eventInitConfig.origin;\n var lastEventId = eventInitConfig.lastEventId;\n var ports = eventInitConfig.ports;\n\n this.type = \"\" + type;\n this.timeStamp = Date.now();\n this.target = null;\n this.srcElement = null;\n this.returnValue = true;\n this.isTrusted = false;\n this.eventPhase = 0;\n this.defaultPrevented = false;\n this.currentTarget = null;\n this.cancelable = cancelable ? Boolean(cancelable) : false;\n this.canncelBubble = false;\n this.bubbles = bubbles ? Boolean(bubbles) : false;\n this.origin = \"\" + origin;\n this.ports = typeof ports === 'undefined' ? null : ports;\n this.data = typeof data === 'undefined' ? null : data;\n this.lastEventId = \"\" + (lastEventId || '');\n }\n\n if ( EventPrototype$$1 ) MessageEvent.__proto__ = EventPrototype$$1;\n MessageEvent.prototype = Object.create( EventPrototype$$1 && EventPrototype$$1.prototype );\n MessageEvent.prototype.constructor = MessageEvent;\n\n return MessageEvent;\n}(EventPrototype));\n\nvar CloseEvent = (function (EventPrototype$$1) {\n function CloseEvent(type, eventInitConfig) {\n if ( eventInitConfig === void 0 ) eventInitConfig = {};\n\n EventPrototype$$1.call(this);\n\n if (!type) {\n throw new TypeError(((ERROR_PREFIX.EVENT.CLOSE) + \" 1 argument required, but only 0 present.\"));\n }\n\n if (typeof eventInitConfig !== 'object') {\n throw new TypeError(((ERROR_PREFIX.EVENT.CLOSE) + \" parameter 2 ('eventInitDict') is not an object\"));\n }\n\n var bubbles = eventInitConfig.bubbles;\n var cancelable = eventInitConfig.cancelable;\n var code = eventInitConfig.code;\n var reason = eventInitConfig.reason;\n var wasClean = eventInitConfig.wasClean;\n\n this.type = \"\" + type;\n this.timeStamp = Date.now();\n this.target = null;\n this.srcElement = null;\n this.returnValue = true;\n this.isTrusted = false;\n this.eventPhase = 0;\n this.defaultPrevented = false;\n this.currentTarget = null;\n this.cancelable = cancelable ? Boolean(cancelable) : false;\n this.cancelBubble = false;\n this.bubbles = bubbles ? Boolean(bubbles) : false;\n this.code = typeof code === 'number' ? parseInt(code, 10) : 0;\n this.reason = \"\" + (reason || '');\n this.wasClean = wasClean ? Boolean(wasClean) : false;\n }\n\n if ( EventPrototype$$1 ) CloseEvent.__proto__ = EventPrototype$$1;\n CloseEvent.prototype = Object.create( EventPrototype$$1 && EventPrototype$$1.prototype );\n CloseEvent.prototype.constructor = CloseEvent;\n\n return CloseEvent;\n}(EventPrototype));\n\n/*\n * Creates an Event object and extends it to allow full modification of\n * its properties.\n *\n * @param {object} config - within config you will need to pass type and optionally target\n */\nfunction createEvent(config) {\n var type = config.type;\n var target = config.target;\n var eventObject = new Event(type);\n\n if (target) {\n eventObject.target = target;\n eventObject.srcElement = target;\n eventObject.currentTarget = target;\n }\n\n return eventObject;\n}\n\n/*\n * Creates a MessageEvent object and extends it to allow full modification of\n * its properties.\n *\n * @param {object} config - within config: type, origin, data and optionally target\n */\nfunction createMessageEvent(config) {\n var type = config.type;\n var origin = config.origin;\n var data = config.data;\n var target = config.target;\n var messageEvent = new MessageEvent(type, {\n data: data,\n origin: origin\n });\n\n if (target) {\n messageEvent.target = target;\n messageEvent.srcElement = target;\n messageEvent.currentTarget = target;\n }\n\n return messageEvent;\n}\n\n/*\n * Creates a CloseEvent object and extends it to allow full modification of\n * its properties.\n *\n * @param {object} config - within config: type and optionally target, code, and reason\n */\nfunction createCloseEvent(config) {\n var code = config.code;\n var reason = config.reason;\n var type = config.type;\n var target = config.target;\n var wasClean = config.wasClean;\n\n if (!wasClean) {\n wasClean = code === CLOSE_CODES.CLOSE_NORMAL || code === CLOSE_CODES.CLOSE_NO_STATUS;\n }\n\n var closeEvent = new CloseEvent(type, {\n code: code,\n reason: reason,\n wasClean: wasClean\n });\n\n if (target) {\n closeEvent.target = target;\n closeEvent.srcElement = target;\n closeEvent.currentTarget = target;\n }\n\n return closeEvent;\n}\n\nfunction closeWebSocketConnection(context, code, reason) {\n context.readyState = WebSocket$1.CLOSING;\n\n var server = networkBridge.serverLookup(context.url);\n var closeEvent = createCloseEvent({\n type: 'close',\n target: context.target,\n code: code,\n reason: reason\n });\n\n delay(function () {\n networkBridge.removeWebSocket(context, context.url);\n\n context.readyState = WebSocket$1.CLOSED;\n context.dispatchEvent(closeEvent);\n\n if (server) {\n server.dispatchEvent(closeEvent, server);\n }\n }, context);\n}\n\nfunction failWebSocketConnection(context, code, reason) {\n context.readyState = WebSocket$1.CLOSING;\n\n var server = networkBridge.serverLookup(context.url);\n var closeEvent = createCloseEvent({\n type: 'close',\n target: context.target,\n code: code,\n reason: reason,\n wasClean: false\n });\n\n var errorEvent = createEvent({\n type: 'error',\n target: context.target\n });\n\n delay(function () {\n networkBridge.removeWebSocket(context, context.url);\n\n context.readyState = WebSocket$1.CLOSED;\n context.dispatchEvent(errorEvent);\n context.dispatchEvent(closeEvent);\n\n if (server) {\n server.dispatchEvent(closeEvent, server);\n }\n }, context);\n}\n\nfunction normalizeSendData(data) {\n if (Object.prototype.toString.call(data) !== '[object Blob]' && !(data instanceof ArrayBuffer)) {\n data = String(data);\n }\n\n return data;\n}\n\nvar proxies = new WeakMap();\n\nfunction proxyFactory(target) {\n if (proxies.has(target)) {\n return proxies.get(target);\n }\n\n var proxy = new Proxy(target, {\n get: function get(obj, prop) {\n if (prop === 'close') {\n return function close(options) {\n if ( options === void 0 ) options = {};\n\n var code = options.code || CLOSE_CODES.CLOSE_NORMAL;\n var reason = options.reason || '';\n\n closeWebSocketConnection(proxy, code, reason);\n };\n }\n\n if (prop === 'send') {\n return function send(data) {\n data = normalizeSendData(data);\n\n target.dispatchEvent(\n createMessageEvent({\n type: 'message',\n data: data,\n origin: this.url,\n target: target\n })\n );\n };\n }\n\n var toSocketName = function (type) { return (type === 'message' ? (\"server::\" + type) : type); };\n if (prop === 'on') {\n return function onWrapper(type, cb) {\n target.addEventListener(toSocketName(type), cb);\n };\n }\n if (prop === 'off') {\n return function offWrapper(type, cb) {\n target.removeEventListener(toSocketName(type), cb);\n };\n }\n\n if (prop === 'target') {\n return target;\n }\n\n return obj[prop];\n }\n });\n proxies.set(target, proxy);\n\n return proxy;\n}\n\nfunction lengthInUtf8Bytes(str) {\n // Matches only the 10.. bytes that are non-initial characters in a multi-byte sequence.\n var m = encodeURIComponent(str).match(/%[89ABab]/g);\n return str.length + (m ? m.length : 0);\n}\n\nfunction urlVerification(url) {\n var urlRecord = new urlParse(url);\n var pathname = urlRecord.pathname;\n var protocol = urlRecord.protocol;\n var hash = urlRecord.hash;\n\n if (!url) {\n throw new TypeError(((ERROR_PREFIX.CONSTRUCTOR_ERROR) + \" 1 argument required, but only 0 present.\"));\n }\n\n if (!pathname) {\n urlRecord.pathname = '/';\n }\n\n if (protocol === '') {\n throw new SyntaxError(((ERROR_PREFIX.CONSTRUCTOR_ERROR) + \" The URL '\" + (urlRecord.toString()) + \"' is invalid.\"));\n }\n\n if (protocol !== 'ws:' && protocol !== 'wss:') {\n throw new SyntaxError(\n ((ERROR_PREFIX.CONSTRUCTOR_ERROR) + \" The URL's scheme must be either 'ws' or 'wss'. '\" + protocol + \"' is not allowed.\")\n );\n }\n\n if (hash !== '') {\n /* eslint-disable max-len */\n throw new SyntaxError(\n ((ERROR_PREFIX.CONSTRUCTOR_ERROR) + \" The URL contains a fragment identifier ('\" + hash + \"'). Fragment identifiers are not allowed in WebSocket URLs.\")\n );\n /* eslint-enable max-len */\n }\n\n return urlRecord.toString();\n}\n\nfunction protocolVerification(protocols) {\n if ( protocols === void 0 ) protocols = [];\n\n if (!Array.isArray(protocols) && typeof protocols !== 'string') {\n throw new SyntaxError(((ERROR_PREFIX.CONSTRUCTOR_ERROR) + \" The subprotocol '\" + (protocols.toString()) + \"' is invalid.\"));\n }\n\n if (typeof protocols === 'string') {\n protocols = [protocols];\n }\n\n var uniq = protocols\n .map(function (p) { return ({ count: 1, protocol: p }); })\n .reduce(function (a, b) {\n a[b.protocol] = (a[b.protocol] || 0) + b.count;\n return a;\n }, {});\n\n var duplicates = Object.keys(uniq).filter(function (a) { return uniq[a] > 1; });\n\n if (duplicates.length > 0) {\n throw new SyntaxError(((ERROR_PREFIX.CONSTRUCTOR_ERROR) + \" The subprotocol '\" + (duplicates[0]) + \"' is duplicated.\"));\n }\n\n return protocols;\n}\n\n/*\n * The main websocket class which is designed to mimick the native WebSocket class as close\n * as possible.\n *\n * https://html.spec.whatwg.org/multipage/web-sockets.html\n */\nvar WebSocket$1 = (function (EventTarget$$1) {\n function WebSocket(url, protocols) {\n EventTarget$$1.call(this);\n\n this._onopen = null;\n this._onmessage = null;\n this._onerror = null;\n this._onclose = null;\n\n this.url = urlVerification(url);\n protocols = protocolVerification(protocols);\n this.protocol = protocols[0] || '';\n\n this.binaryType = 'blob';\n this.readyState = WebSocket.CONNECTING;\n\n var client = proxyFactory(this);\n var server = networkBridge.attachWebSocket(client, this.url);\n\n /*\n * This delay is needed so that we dont trigger an event before the callbacks have been\n * setup. For example:\n *\n * var socket = new WebSocket('ws://localhost');\n *\n * If we dont have the delay then the event would be triggered right here and this is\n * before the onopen had a chance to register itself.\n *\n * socket.onopen = () => { // this would never be called };\n *\n * and with the delay the event gets triggered here after all of the callbacks have been\n * registered :-)\n */\n delay(function delayCallback() {\n if (server) {\n if (\n server.options.verifyClient &&\n typeof server.options.verifyClient === 'function' &&\n !server.options.verifyClient()\n ) {\n this.readyState = WebSocket.CLOSED;\n\n log(\n 'error',\n (\"WebSocket connection to '\" + (this.url) + \"' failed: HTTP Authentication failed; no valid credentials available\")\n );\n\n networkBridge.removeWebSocket(client, this.url);\n this.dispatchEvent(createEvent({ type: 'error', target: this }));\n this.dispatchEvent(createCloseEvent({ type: 'close', target: this, code: CLOSE_CODES.CLOSE_NORMAL }));\n } else {\n if (server.options.selectProtocol && typeof server.options.selectProtocol === 'function') {\n var selectedProtocol = server.options.selectProtocol(protocols);\n var isFilled = selectedProtocol !== '';\n var isRequested = protocols.indexOf(selectedProtocol) !== -1;\n if (isFilled && !isRequested) {\n this.readyState = WebSocket.CLOSED;\n\n log('error', (\"WebSocket connection to '\" + (this.url) + \"' failed: Invalid Sub-Protocol\"));\n\n networkBridge.removeWebSocket(client, this.url);\n this.dispatchEvent(createEvent({ type: 'error', target: this }));\n this.dispatchEvent(createCloseEvent({ type: 'close', target: this, code: CLOSE_CODES.CLOSE_NORMAL }));\n return;\n }\n this.protocol = selectedProtocol;\n }\n this.readyState = WebSocket.OPEN;\n this.dispatchEvent(createEvent({ type: 'open', target: this }));\n server.dispatchEvent(createEvent({ type: 'connection' }), client);\n }\n } else {\n this.readyState = WebSocket.CLOSED;\n this.dispatchEvent(createEvent({ type: 'error', target: this }));\n this.dispatchEvent(createCloseEvent({ type: 'close', target: this, code: CLOSE_CODES.CLOSE_NORMAL }));\n\n log('error', (\"WebSocket connection to '\" + (this.url) + \"' failed\"));\n }\n }, this);\n }\n\n if ( EventTarget$$1 ) WebSocket.__proto__ = EventTarget$$1;\n WebSocket.prototype = Object.create( EventTarget$$1 && EventTarget$$1.prototype );\n WebSocket.prototype.constructor = WebSocket;\n\n var prototypeAccessors = { onopen: {},onmessage: {},onclose: {},onerror: {} };\n\n prototypeAccessors.onopen.get = function () {\n return this._onopen;\n };\n\n prototypeAccessors.onmessage.get = function () {\n return this._onmessage;\n };\n\n prototypeAccessors.onclose.get = function () {\n return this._onclose;\n };\n\n prototypeAccessors.onerror.get = function () {\n return this._onerror;\n };\n\n prototypeAccessors.onopen.set = function (listener) {\n this.removeEventListener('open', this._onopen);\n this._onopen = listener;\n this.addEventListener('open', listener);\n };\n\n prototypeAccessors.onmessage.set = function (listener) {\n this.removeEventListener('message', this._onmessage);\n this._onmessage = listener;\n this.addEventListener('message', listener);\n };\n\n prototypeAccessors.onclose.set = function (listener) {\n this.removeEventListener('close', this._onclose);\n this._onclose = listener;\n this.addEventListener('close', listener);\n };\n\n prototypeAccessors.onerror.set = function (listener) {\n this.removeEventListener('error', this._onerror);\n this._onerror = listener;\n this.addEventListener('error', listener);\n };\n\n WebSocket.prototype.send = function send (data) {\n var this$1 = this;\n\n if (this.readyState === WebSocket.CLOSING || this.readyState === WebSocket.CLOSED) {\n throw new Error('WebSocket is already in CLOSING or CLOSED state');\n }\n\n // TODO: handle bufferedAmount\n\n var messageEvent = createMessageEvent({\n type: 'server::message',\n origin: this.url,\n data: normalizeSendData(data)\n });\n\n var server = networkBridge.serverLookup(this.url);\n\n if (server) {\n delay(function () {\n this$1.dispatchEvent(messageEvent, data);\n }, server);\n }\n };\n\n WebSocket.prototype.close = function close (code, reason) {\n if (code !== undefined) {\n if (typeof code !== 'number' || (code !== 1000 && (code < 3000 || code > 4999))) {\n throw new TypeError(\n ((ERROR_PREFIX.CLOSE_ERROR) + \" The code must be either 1000, or between 3000 and 4999. \" + code + \" is neither.\")\n );\n }\n }\n\n if (reason !== undefined) {\n var length = lengthInUtf8Bytes(reason);\n\n if (length > 123) {\n throw new SyntaxError(((ERROR_PREFIX.CLOSE_ERROR) + \" The message must not be greater than 123 bytes.\"));\n }\n }\n\n if (this.readyState === WebSocket.CLOSING || this.readyState === WebSocket.CLOSED) {\n return;\n }\n\n var client = proxyFactory(this);\n if (this.readyState === WebSocket.CONNECTING) {\n failWebSocketConnection(client, code || CLOSE_CODES.CLOSE_ABNORMAL, reason);\n } else {\n closeWebSocketConnection(client, code || CLOSE_CODES.CLOSE_NO_STATUS, reason);\n }\n };\n\n Object.defineProperties( WebSocket.prototype, prototypeAccessors );\n\n return WebSocket;\n}(EventTarget));\n\nWebSocket$1.CONNECTING = 0;\nWebSocket$1.prototype.CONNECTING = WebSocket$1.CONNECTING;\nWebSocket$1.OPEN = 1;\nWebSocket$1.prototype.OPEN = WebSocket$1.OPEN;\nWebSocket$1.CLOSING = 2;\nWebSocket$1.prototype.CLOSING = WebSocket$1.CLOSING;\nWebSocket$1.CLOSED = 3;\nWebSocket$1.prototype.CLOSED = WebSocket$1.CLOSED;\n\n/*\n * The socket-io class is designed to mimick the real API as closely as possible.\n *\n * http://socket.io/docs/\n */\nvar SocketIO$1 = (function (EventTarget$$1) {\n function SocketIO(url, protocol) {\n var this$1 = this;\n if ( url === void 0 ) url = 'socket.io';\n if ( protocol === void 0 ) protocol = '';\n\n EventTarget$$1.call(this);\n\n this.binaryType = 'blob';\n var urlRecord = new urlParse(url);\n\n if (!urlRecord.pathname) {\n urlRecord.pathname = '/';\n }\n\n this.url = urlRecord.toString();\n this.readyState = SocketIO.CONNECTING;\n this.protocol = '';\n this.target = this;\n\n if (typeof protocol === 'string' || (typeof protocol === 'object' && protocol !== null)) {\n this.protocol = protocol;\n } else if (Array.isArray(protocol) && protocol.length > 0) {\n this.protocol = protocol[0];\n }\n\n var server = networkBridge.attachWebSocket(this, this.url);\n\n /*\n * Delay triggering the connection events so they can be defined in time.\n */\n delay(function delayCallback() {\n if (server) {\n this.readyState = SocketIO.OPEN;\n server.dispatchEvent(createEvent({ type: 'connection' }), server, this);\n server.dispatchEvent(createEvent({ type: 'connect' }), server, this); // alias\n this.dispatchEvent(createEvent({ type: 'connect', target: this }));\n } else {\n this.readyState = SocketIO.CLOSED;\n this.dispatchEvent(createEvent({ type: 'error', target: this }));\n this.dispatchEvent(\n createCloseEvent({\n type: 'close',\n target: this,\n code: CLOSE_CODES.CLOSE_NORMAL\n })\n );\n\n log('error', (\"Socket.io connection to '\" + (this.url) + \"' failed\"));\n }\n }, this);\n\n /**\n Add an aliased event listener for close / disconnect\n */\n this.addEventListener('close', function (event) {\n this$1.dispatchEvent(\n createCloseEvent({\n type: 'disconnect',\n target: event.target,\n code: event.code\n })\n );\n });\n }\n\n if ( EventTarget$$1 ) SocketIO.__proto__ = EventTarget$$1;\n SocketIO.prototype = Object.create( EventTarget$$1 && EventTarget$$1.prototype );\n SocketIO.prototype.constructor = SocketIO;\n\n var prototypeAccessors = { broadcast: {} };\n\n /*\n * Closes the SocketIO connection or connection attempt, if any.\n * If the connection is already CLOSED, this method does nothing.\n */\n SocketIO.prototype.close = function close () {\n if (this.readyState !== SocketIO.OPEN) {\n return undefined;\n }\n\n var server = networkBridge.serverLookup(this.url);\n networkBridge.removeWebSocket(this, this.url);\n\n this.readyState = SocketIO.CLOSED;\n this.dispatchEvent(\n createCloseEvent({\n type: 'close',\n target: this,\n code: CLOSE_CODES.CLOSE_NORMAL\n })\n );\n\n if (server) {\n server.dispatchEvent(\n createCloseEvent({\n type: 'disconnect',\n target: this,\n code: CLOSE_CODES.CLOSE_NORMAL\n }),\n server\n );\n }\n\n return this;\n };\n\n /*\n * Alias for Socket#close\n *\n * https://github.com/socketio/socket.io-client/blob/master/lib/socket.js#L383\n */\n SocketIO.prototype.disconnect = function disconnect () {\n return this.close();\n };\n\n /*\n * Submits an event to the server with a payload\n */\n SocketIO.prototype.emit = function emit (event) {\n var data = [], len = arguments.length - 1;\n while ( len-- > 0 ) data[ len ] = arguments[ len + 1 ];\n\n if (this.readyState !== SocketIO.OPEN) {\n throw new Error('SocketIO is already in CLOSING or CLOSED state');\n }\n\n var messageEvent = createMessageEvent({\n type: event,\n origin: this.url,\n data: data\n });\n\n var server = networkBridge.serverLookup(this.url);\n\n if (server) {\n server.dispatchEvent.apply(server, [ messageEvent ].concat( data ));\n }\n\n return this;\n };\n\n /*\n * Submits a 'message' event to the server.\n *\n * Should behave exactly like WebSocket#send\n *\n * https://github.com/socketio/socket.io-client/blob/master/lib/socket.js#L113\n */\n SocketIO.prototype.send = function send (data) {\n this.emit('message', data);\n return this;\n };\n\n /*\n * For broadcasting events to other connected sockets.\n *\n * e.g. socket.broadcast.emit('hi!');\n * e.g. socket.broadcast.to('my-room').emit('hi!');\n */\n prototypeAccessors.broadcast.get = function () {\n if (this.readyState !== SocketIO.OPEN) {\n throw new Error('SocketIO is already in CLOSING or CLOSED state');\n }\n\n var self = this;\n var server = networkBridge.serverLookup(this.url);\n if (!server) {\n throw new Error((\"SocketIO can not find a server at the specified URL (\" + (this.url) + \")\"));\n }\n\n return {\n emit: function emit(event, data) {\n server.emit(event, data, { websockets: networkBridge.websocketsLookup(self.url, null, self) });\n return self;\n },\n to: function to(room) {\n return server.to(room, self);\n },\n in: function in$1(room) {\n return server.in(room, self);\n }\n };\n };\n\n /*\n * For registering events to be received from the server\n */\n SocketIO.prototype.on = function on (type, callback) {\n this.addEventListener(type, callback);\n return this;\n };\n\n /*\n * Remove event listener\n *\n * https://github.com/component/emitter#emitteroffevent-fn\n */\n SocketIO.prototype.off = function off (type, callback) {\n this.removeEventListener(type, callback);\n };\n\n /*\n * Check if listeners have already been added for an event\n *\n * https://github.com/component/emitter#emitterhaslistenersevent\n */\n SocketIO.prototype.hasListeners = function hasListeners (type) {\n var listeners = this.listeners[type];\n if (!Array.isArray(listeners)) {\n return false;\n }\n return !!listeners.length;\n };\n\n /*\n * Join a room on a server\n *\n * http://socket.io/docs/rooms-and-namespaces/#joining-and-leaving\n */\n SocketIO.prototype.join = function join (room) {\n networkBridge.addMembershipToRoom(this, room);\n };\n\n /*\n * Get the websocket to leave the room\n *\n * http://socket.io/docs/rooms-and-namespaces/#joining-and-leaving\n */\n SocketIO.prototype.leave = function leave (room) {\n networkBridge.removeMembershipFromRoom(this, room);\n };\n\n SocketIO.prototype.to = function to (room) {\n return this.broadcast.to(room);\n };\n\n SocketIO.prototype.in = function in$1 () {\n return this.to.apply(null, arguments);\n };\n\n /*\n * Invokes all listener functions that are listening to the given event.type property. Each\n * listener will be passed the event as the first argument.\n *\n * @param {object} event - event object which will be passed to all listeners of the event.type property\n */\n SocketIO.prototype.dispatchEvent = function dispatchEvent (event) {\n var this$1 = this;\n var customArguments = [], len = arguments.length - 1;\n while ( len-- > 0 ) customArguments[ len ] = arguments[ len + 1 ];\n\n var eventName = event.type;\n var listeners = this.listeners[eventName];\n\n if (!Array.isArray(listeners)) {\n return false;\n }\n\n listeners.forEach(function (listener) {\n if (customArguments.length > 0) {\n listener.apply(this$1, customArguments);\n } else {\n // Regular WebSockets expect a MessageEvent but Socketio.io just wants raw data\n // payload instanceof MessageEvent works, but you can't isntance of NodeEvent\n // for now we detect if the output has data defined on it\n listener.call(this$1, event.data ? event.data : event);\n }\n });\n };\n\n Object.defineProperties( SocketIO.prototype, prototypeAccessors );\n\n return SocketIO;\n}(EventTarget));\n\nSocketIO$1.CONNECTING = 0;\nSocketIO$1.OPEN = 1;\nSocketIO$1.CLOSING = 2;\nSocketIO$1.CLOSED = 3;\n\n/*\n * Static constructor methods for the IO Socket\n */\nvar IO = function ioConstructor(url, protocol) {\n return new SocketIO$1(url, protocol);\n};\n\n/*\n * Alias the raw IO() constructor\n */\nIO.connect = function ioConnect(url, protocol) {\n /* eslint-disable new-cap */\n return IO(url, protocol);\n /* eslint-enable new-cap */\n};\n\nvar dedupe = function (arr) { return arr.reduce(function (deduped, b) {\n if (deduped.indexOf(b) > -1) { return deduped; }\n return deduped.concat(b);\n }, []); };\n\nfunction retrieveGlobalObject() {\n if (typeof window !== 'undefined') {\n return window;\n }\n\n return typeof process === 'object' && typeof require === 'function' && typeof global === 'object' ? global : this;\n}\n\nvar defaultOptions = {\n mock: true,\n verifyClient: null,\n selectProtocol: null\n};\n\nvar Server$1 = (function (EventTarget$$1) {\n function Server(url, options) {\n if ( options === void 0 ) options = defaultOptions;\n\n EventTarget$$1.call(this);\n var urlRecord = new urlParse(url);\n\n if (!urlRecord.pathname) {\n urlRecord.pathname = '/';\n }\n\n this.url = urlRecord.toString();\n\n this.originalWebSocket = null;\n var server = networkBridge.attachServer(this, this.url);\n\n if (!server) {\n this.dispatchEvent(createEvent({ type: 'error' }));\n throw new Error('A mock server is already listening on this url');\n }\n\n this.options = Object.assign({}, defaultOptions, options);\n\n if (this.options.mock) {\n this.mockWebsocket();\n }\n }\n\n if ( EventTarget$$1 ) Server.__proto__ = EventTarget$$1;\n Server.prototype = Object.create( EventTarget$$1 && EventTarget$$1.prototype );\n Server.prototype.constructor = Server;\n\n /*\n * Attaches the mock websocket object to the global object\n */\n Server.prototype.mockWebsocket = function mockWebsocket () {\n var globalObj = retrieveGlobalObject();\n\n this.originalWebSocket = globalObj.WebSocket;\n globalObj.WebSocket = WebSocket$1;\n };\n\n /*\n * Removes the mock websocket object from the global object\n */\n Server.prototype.restoreWebsocket = function restoreWebsocket () {\n var globalObj = retrieveGlobalObject();\n\n if (this.originalWebSocket !== null) {\n globalObj.WebSocket = this.originalWebSocket;\n }\n\n this.originalWebSocket = null;\n };\n\n /**\n * Removes itself from the urlMap so another server could add itself to the url.\n * @param {function} callback - The callback is called when the server is stopped\n */\n Server.prototype.stop = function stop (callback) {\n if ( callback === void 0 ) callback = function () {};\n\n if (this.options.mock) {\n this.restoreWebsocket();\n }\n\n networkBridge.removeServer(this.url);\n\n if (typeof callback === 'function') {\n callback();\n }\n };\n\n /*\n * This is the main function for the mock server to subscribe to the on events.\n *\n * ie: mockServer.on('connection', function() { console.log('a mock client connected'); });\n *\n * @param {string} type - The event key to subscribe to. Valid keys are: connection, message, and close.\n * @param {function} callback - The callback which should be called when a certain event is fired.\n */\n Server.prototype.on = function on (type, callback) {\n this.addEventListener(type, callback);\n };\n\n /*\n * Remove event listener\n */\n Server.prototype.off = function off (type, callback) {\n this.removeEventListener(type, callback);\n };\n\n /*\n * Closes the connection and triggers the onclose method of all listening\n * websockets. After that it removes itself from the urlMap so another server\n * could add itself to the url.\n *\n * @param {object} options\n */\n Server.prototype.close = function close (options) {\n if ( options === void 0 ) options = {};\n\n var code = options.code;\n var reason = options.reason;\n var wasClean = options.wasClean;\n var listeners = networkBridge.websocketsLookup(this.url);\n\n // Remove server before notifications to prevent immediate reconnects from\n // socket onclose handlers\n networkBridge.removeServer(this.url);\n\n listeners.forEach(function (socket) {\n socket.readyState = WebSocket$1.CLOSED;\n socket.dispatchEvent(\n createCloseEvent({\n type: 'close',\n target: socket.target,\n code: code || CLOSE_CODES.CLOSE_NORMAL,\n reason: reason || '',\n wasClean: wasClean\n })\n );\n });\n\n this.dispatchEvent(createCloseEvent({ type: 'close' }), this);\n };\n\n /*\n * Sends a generic message event to all mock clients.\n */\n Server.prototype.emit = function emit (event, data, options) {\n var this$1 = this;\n if ( options === void 0 ) options = {};\n\n var websockets = options.websockets;\n\n if (!websockets) {\n websockets = networkBridge.websocketsLookup(this.url);\n }\n\n var normalizedData;\n if (typeof options !== 'object' || arguments.length > 3) {\n data = Array.prototype.slice.call(arguments, 1, arguments.length);\n normalizedData = data.map(function (item) { return normalizeSendData(item); });\n } else {\n normalizedData = normalizeSendData(data);\n }\n\n websockets.forEach(function (socket) {\n var messageData = socket instanceof SocketIO$1 ? data : normalizedData;\n if (Array.isArray(messageData)) {\n socket.dispatchEvent.apply(\n socket, [ createMessageEvent({\n type: event,\n data: messageData,\n origin: this$1.url,\n target: socket.target\n }) ].concat( messageData )\n );\n } else {\n socket.dispatchEvent(\n createMessageEvent({\n type: event,\n data: messageData,\n origin: this$1.url,\n target: socket.target\n })\n );\n }\n });\n };\n\n /*\n * Returns an array of websockets which are listening to this server\n * TOOD: this should return a set and not be a method\n */\n Server.prototype.clients = function clients () {\n return networkBridge.websocketsLookup(this.url);\n };\n\n /*\n * Prepares a method to submit an event to members of the room\n *\n * e.g. server.to('my-room').emit('hi!');\n */\n Server.prototype.to = function to (room, broadcaster, broadcastList) {\n var this$1 = this;\n if ( broadcastList === void 0 ) broadcastList = [];\n\n var self = this;\n var websockets = dedupe(broadcastList.concat(networkBridge.websocketsLookup(this.url, room, broadcaster)));\n\n return {\n to: function (chainedRoom, chainedBroadcaster) { return this$1.to.call(this$1, chainedRoom, chainedBroadcaster, websockets); },\n emit: function emit(event, data) {\n self.emit(event, data, { websockets: websockets });\n }\n };\n };\n\n /*\n * Alias for Server.to\n */\n Server.prototype.in = function in$1 () {\n var args = [], len = arguments.length;\n while ( len-- ) args[ len ] = arguments[ len ];\n\n return this.to.apply(null, args);\n };\n\n /*\n * Simulate an event from the server to the clients. Useful for\n * simulating errors.\n */\n Server.prototype.simulate = function simulate (event) {\n var listeners = networkBridge.websocketsLookup(this.url);\n\n if (event === 'error') {\n listeners.forEach(function (socket) {\n socket.readyState = WebSocket$1.CLOSED;\n socket.dispatchEvent(createEvent({ type: 'error', target: socket.target }));\n });\n }\n };\n\n return Server;\n}(EventTarget));\n\n/*\n * Alternative constructor to support namespaces in socket.io\n *\n * http://socket.io/docs/rooms-and-namespaces/#custom-namespaces\n */\nServer$1.of = function of(url) {\n return new Server$1(url);\n};\n\nvar Server = Server$1;\nvar WebSocket = WebSocket$1;\nvar SocketIO$$1 = IO;\n\nexports.Server = Server;\nexports.WebSocket = WebSocket;\nexports.SocketIO = SocketIO$$1;\n\nObject.defineProperty(exports, '__esModule', { value: true });\n\n})));\n","// 'path' module extracted from Node.js v8.11.1 (only the posix part)\n// transplited with Babel\n\n// Copyright Joyent, Inc. and other Node contributors.\n//\n// Permission is hereby granted, free of charge, to any person obtaining a\n// copy of this software and associated documentation files (the\n// \"Software\"), to deal in the Software without restriction, including\n// without limitation the rights to use, copy, modify, merge, publish,\n// distribute, sublicense, and/or sell copies of the Software, and to permit\n// persons to whom the Software is furnished to do so, subject to the\n// following conditions:\n//\n// The above copyright notice and this permission notice shall be included\n// in all copies or substantial portions of the Software.\n//\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS\n// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\n// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN\n// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,\n// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR\n// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE\n// USE OR OTHER DEALINGS IN THE SOFTWARE.\n\n'use strict';\n\nfunction assertPath(path) {\n if (typeof path !== 'string') {\n throw new TypeError('Path must be a string. Received ' + JSON.stringify(path));\n }\n}\n\n// Resolves . and .. elements in a path with directory names\nfunction normalizeStringPosix(path, allowAboveRoot) {\n var res = '';\n var lastSegmentLength = 0;\n var lastSlash = -1;\n var dots = 0;\n var code;\n for (var i = 0; i <= path.length; ++i) {\n if (i < path.length)\n code = path.charCodeAt(i);\n else if (code === 47 /*/*/)\n break;\n else\n code = 47 /*/*/;\n if (code === 47 /*/*/) {\n if (lastSlash === i - 1 || dots === 1) {\n // NOOP\n } else if (lastSlash !== i - 1 && dots === 2) {\n if (res.length < 2 || lastSegmentLength !== 2 || res.charCodeAt(res.length - 1) !== 46 /*.*/ || res.charCodeAt(res.length - 2) !== 46 /*.*/) {\n if (res.length > 2) {\n var lastSlashIndex = res.lastIndexOf('/');\n if (lastSlashIndex !== res.length - 1) {\n if (lastSlashIndex === -1) {\n res = '';\n lastSegmentLength = 0;\n } else {\n res = res.slice(0, lastSlashIndex);\n lastSegmentLength = res.length - 1 - res.lastIndexOf('/');\n }\n lastSlash = i;\n dots = 0;\n continue;\n }\n } else if (res.length === 2 || res.length === 1) {\n res = '';\n lastSegmentLength = 0;\n lastSlash = i;\n dots = 0;\n continue;\n }\n }\n if (allowAboveRoot) {\n if (res.length > 0)\n res += '/..';\n else\n res = '..';\n lastSegmentLength = 2;\n }\n } else {\n if (res.length > 0)\n res += '/' + path.slice(lastSlash + 1, i);\n else\n res = path.slice(lastSlash + 1, i);\n lastSegmentLength = i - lastSlash - 1;\n }\n lastSlash = i;\n dots = 0;\n } else if (code === 46 /*.*/ && dots !== -1) {\n ++dots;\n } else {\n dots = -1;\n }\n }\n return res;\n}\n\nfunction _format(sep, pathObject) {\n var dir = pathObject.dir || pathObject.root;\n var base = pathObject.base || (pathObject.name || '') + (pathObject.ext || '');\n if (!dir) {\n return base;\n }\n if (dir === pathObject.root) {\n return dir + base;\n }\n return dir + sep + base;\n}\n\nvar posix = {\n // path.resolve([from ...], to)\n resolve: function resolve() {\n var resolvedPath = '';\n var resolvedAbsolute = false;\n var cwd;\n\n for (var i = arguments.length - 1; i >= -1 && !resolvedAbsolute; i--) {\n var path;\n if (i >= 0)\n path = arguments[i];\n else {\n if (cwd === undefined)\n cwd = process.cwd();\n path = cwd;\n }\n\n assertPath(path);\n\n // Skip empty entries\n if (path.length === 0) {\n continue;\n }\n\n resolvedPath = path + '/' + resolvedPath;\n resolvedAbsolute = path.charCodeAt(0) === 47 /*/*/;\n }\n\n // At this point the path should be resolved to a full absolute path, but\n // handle relative paths to be safe (might happen when process.cwd() fails)\n\n // Normalize the path\n resolvedPath = normalizeStringPosix(resolvedPath, !resolvedAbsolute);\n\n if (resolvedAbsolute) {\n if (resolvedPath.length > 0)\n return '/' + resolvedPath;\n else\n return '/';\n } else if (resolvedPath.length > 0) {\n return resolvedPath;\n } else {\n return '.';\n }\n },\n\n normalize: function normalize(path) {\n assertPath(path);\n\n if (path.length === 0) return '.';\n\n var isAbsolute = path.charCodeAt(0) === 47 /*/*/;\n var trailingSeparator = path.charCodeAt(path.length - 1) === 47 /*/*/;\n\n // Normalize the path\n path = normalizeStringPosix(path, !isAbsolute);\n\n if (path.length === 0 && !isAbsolute) path = '.';\n if (path.length > 0 && trailingSeparator) path += '/';\n\n if (isAbsolute) return '/' + path;\n return path;\n },\n\n isAbsolute: function isAbsolute(path) {\n assertPath(path);\n return path.length > 0 && path.charCodeAt(0) === 47 /*/*/;\n },\n\n join: function join() {\n if (arguments.length === 0)\n return '.';\n var joined;\n for (var i = 0; i < arguments.length; ++i) {\n var arg = arguments[i];\n assertPath(arg);\n if (arg.length > 0) {\n if (joined === undefined)\n joined = arg;\n else\n joined += '/' + arg;\n }\n }\n if (joined === undefined)\n return '.';\n return posix.normalize(joined);\n },\n\n relative: function relative(from, to) {\n assertPath(from);\n assertPath(to);\n\n if (from === to) return '';\n\n from = posix.resolve(from);\n to = posix.resolve(to);\n\n if (from === to) return '';\n\n // Trim any leading backslashes\n var fromStart = 1;\n for (; fromStart < from.length; ++fromStart) {\n if (from.charCodeAt(fromStart) !== 47 /*/*/)\n break;\n }\n var fromEnd = from.length;\n var fromLen = fromEnd - fromStart;\n\n // Trim any leading backslashes\n var toStart = 1;\n for (; toStart < to.length; ++toStart) {\n if (to.charCodeAt(toStart) !== 47 /*/*/)\n break;\n }\n var toEnd = to.length;\n var toLen = toEnd - toStart;\n\n // Compare paths to find the longest common path from root\n var length = fromLen < toLen ? fromLen : toLen;\n var lastCommonSep = -1;\n var i = 0;\n for (; i <= length; ++i) {\n if (i === length) {\n if (toLen > length) {\n if (to.charCodeAt(toStart + i) === 47 /*/*/) {\n // We get here if `from` is the exact base path for `to`.\n // For example: from='/foo/bar'; to='/foo/bar/baz'\n return to.slice(toStart + i + 1);\n } else if (i === 0) {\n // We get here if `from` is the root\n // For example: from='/'; to='/foo'\n return to.slice(toStart + i);\n }\n } else if (fromLen > length) {\n if (from.charCodeAt(fromStart + i) === 47 /*/*/) {\n // We get here if `to` is the exact base path for `from`.\n // For example: from='/foo/bar/baz'; to='/foo/bar'\n lastCommonSep = i;\n } else if (i === 0) {\n // We get here if `to` is the root.\n // For example: from='/foo'; to='/'\n lastCommonSep = 0;\n }\n }\n break;\n }\n var fromCode = from.charCodeAt(fromStart + i);\n var toCode = to.charCodeAt(toStart + i);\n if (fromCode !== toCode)\n break;\n else if (fromCode === 47 /*/*/)\n lastCommonSep = i;\n }\n\n var out = '';\n // Generate the relative path based on the path difference between `to`\n // and `from`\n for (i = fromStart + lastCommonSep + 1; i <= fromEnd; ++i) {\n if (i === fromEnd || from.charCodeAt(i) === 47 /*/*/) {\n if (out.length === 0)\n out += '..';\n else\n out += '/..';\n }\n }\n\n // Lastly, append the rest of the destination (`to`) path that comes after\n // the common path parts\n if (out.length > 0)\n return out + to.slice(toStart + lastCommonSep);\n else {\n toStart += lastCommonSep;\n if (to.charCodeAt(toStart) === 47 /*/*/)\n ++toStart;\n return to.slice(toStart);\n }\n },\n\n _makeLong: function _makeLong(path) {\n return path;\n },\n\n dirname: function dirname(path) {\n assertPath(path);\n if (path.length === 0) return '.';\n var code = path.charCodeAt(0);\n var hasRoot = code === 47 /*/*/;\n var end = -1;\n var matchedSlash = true;\n for (var i = path.length - 1; i >= 1; --i) {\n code = path.charCodeAt(i);\n if (code === 47 /*/*/) {\n if (!matchedSlash) {\n end = i;\n break;\n }\n } else {\n // We saw the first non-path separator\n matchedSlash = false;\n }\n }\n\n if (end === -1) return hasRoot ? '/' : '.';\n if (hasRoot && end === 1) return '//';\n return path.slice(0, end);\n },\n\n basename: function basename(path, ext) {\n if (ext !== undefined && typeof ext !== 'string') throw new TypeError('\"ext\" argument must be a string');\n assertPath(path);\n\n var start = 0;\n var end = -1;\n var matchedSlash = true;\n var i;\n\n if (ext !== undefined && ext.length > 0 && ext.length <= path.length) {\n if (ext.length === path.length && ext === path) return '';\n var extIdx = ext.length - 1;\n var firstNonSlashEnd = -1;\n for (i = path.length - 1; i >= 0; --i) {\n var code = path.charCodeAt(i);\n if (code === 47 /*/*/) {\n // If we reached a path separator that was not part of a set of path\n // separators at the end of the string, stop now\n if (!matchedSlash) {\n start = i + 1;\n break;\n }\n } else {\n if (firstNonSlashEnd === -1) {\n // We saw the first non-path separator, remember this index in case\n // we need it if the extension ends up not matching\n matchedSlash = false;\n firstNonSlashEnd = i + 1;\n }\n if (extIdx >= 0) {\n // Try to match the explicit extension\n if (code === ext.charCodeAt(extIdx)) {\n if (--extIdx === -1) {\n // We matched the extension, so mark this as the end of our path\n // component\n end = i;\n }\n } else {\n // Extension does not match, so our result is the entire path\n // component\n extIdx = -1;\n end = firstNonSlashEnd;\n }\n }\n }\n }\n\n if (start === end) end = firstNonSlashEnd;else if (end === -1) end = path.length;\n return path.slice(start, end);\n } else {\n for (i = path.length - 1; i >= 0; --i) {\n if (path.charCodeAt(i) === 47 /*/*/) {\n // If we reached a path separator that was not part of a set of path\n // separators at the end of the string, stop now\n if (!matchedSlash) {\n start = i + 1;\n break;\n }\n } else if (end === -1) {\n // We saw the first non-path separator, mark this as the end of our\n // path component\n matchedSlash = false;\n end = i + 1;\n }\n }\n\n if (end === -1) return '';\n return path.slice(start, end);\n }\n },\n\n extname: function extname(path) {\n assertPath(path);\n var startDot = -1;\n var startPart = 0;\n var end = -1;\n var matchedSlash = true;\n // Track the state of characters (if any) we see before our first dot and\n // after any path separator we find\n var preDotState = 0;\n for (var i = path.length - 1; i >= 0; --i) {\n var code = path.charCodeAt(i);\n if (code === 47 /*/*/) {\n // If we reached a path separator that was not part of a set of path\n // separators at the end of the string, stop now\n if (!matchedSlash) {\n startPart = i + 1;\n break;\n }\n continue;\n }\n if (end === -1) {\n // We saw the first non-path separator, mark this as the end of our\n // extension\n matchedSlash = false;\n end = i + 1;\n }\n if (code === 46 /*.*/) {\n // If this is our first dot, mark it as the start of our extension\n if (startDot === -1)\n startDot = i;\n else if (preDotState !== 1)\n preDotState = 1;\n } else if (startDot !== -1) {\n // We saw a non-dot and non-path separator before our dot, so we should\n // have a good chance at having a non-empty extension\n preDotState = -1;\n }\n }\n\n if (startDot === -1 || end === -1 ||\n // We saw a non-dot character immediately before the dot\n preDotState === 0 ||\n // The (right-most) trimmed path component is exactly '..'\n preDotState === 1 && startDot === end - 1 && startDot === startPart + 1) {\n return '';\n }\n return path.slice(startDot, end);\n },\n\n format: function format(pathObject) {\n if (pathObject === null || typeof pathObject !== 'object') {\n throw new TypeError('The \"pathObject\" argument must be of type Object. Received type ' + typeof pathObject);\n }\n return _format('/', pathObject);\n },\n\n parse: function parse(path) {\n assertPath(path);\n\n var ret = { root: '', dir: '', base: '', ext: '', name: '' };\n if (path.length === 0) return ret;\n var code = path.charCodeAt(0);\n var isAbsolute = code === 47 /*/*/;\n var start;\n if (isAbsolute) {\n ret.root = '/';\n start = 1;\n } else {\n start = 0;\n }\n var startDot = -1;\n var startPart = 0;\n var end = -1;\n var matchedSlash = true;\n var i = path.length - 1;\n\n // Track the state of characters (if any) we see before our first dot and\n // after any path separator we find\n var preDotState = 0;\n\n // Get non-dir info\n for (; i >= start; --i) {\n code = path.charCodeAt(i);\n if (code === 47 /*/*/) {\n // If we reached a path separator that was not part of a set of path\n // separators at the end of the string, stop now\n if (!matchedSlash) {\n startPart = i + 1;\n break;\n }\n continue;\n }\n if (end === -1) {\n // We saw the first non-path separator, mark this as the end of our\n // extension\n matchedSlash = false;\n end = i + 1;\n }\n if (code === 46 /*.*/) {\n // If this is our first dot, mark it as the start of our extension\n if (startDot === -1) startDot = i;else if (preDotState !== 1) preDotState = 1;\n } else if (startDot !== -1) {\n // We saw a non-dot and non-path separator before our dot, so we should\n // have a good chance at having a non-empty extension\n preDotState = -1;\n }\n }\n\n if (startDot === -1 || end === -1 ||\n // We saw a non-dot character immediately before the dot\n preDotState === 0 ||\n // The (right-most) trimmed path component is exactly '..'\n preDotState === 1 && startDot === end - 1 && startDot === startPart + 1) {\n if (end !== -1) {\n if (startPart === 0 && isAbsolute) ret.base = ret.name = path.slice(1, end);else ret.base = ret.name = path.slice(startPart, end);\n }\n } else {\n if (startPart === 0 && isAbsolute) {\n ret.name = path.slice(1, startDot);\n ret.base = path.slice(1, end);\n } else {\n ret.name = path.slice(startPart, startDot);\n ret.base = path.slice(startPart, end);\n }\n ret.ext = path.slice(startDot, end);\n }\n\n if (startPart > 0) ret.dir = path.slice(0, startPart - 1);else if (isAbsolute) ret.dir = '/';\n\n return ret;\n },\n\n sep: '/',\n delimiter: ':',\n win32: null,\n posix: null\n};\n\nposix.posix = posix;\n\nmodule.exports = posix;\n","'use strict';\n\nvar has = Object.prototype.hasOwnProperty\n , undef;\n\n/**\n * Decode a URI encoded string.\n *\n * @param {String} input The URI encoded string.\n * @returns {String|Null} The decoded string.\n * @api private\n */\nfunction decode(input) {\n try {\n return decodeURIComponent(input.replace(/\\+/g, ' '));\n } catch (e) {\n return null;\n }\n}\n\n/**\n * Attempts to encode a given input.\n *\n * @param {String} input The string that needs to be encoded.\n * @returns {String|Null} The encoded string.\n * @api private\n */\nfunction encode(input) {\n try {\n return encodeURIComponent(input);\n } catch (e) {\n return null;\n }\n}\n\n/**\n * Simple query string parser.\n *\n * @param {String} query The query string that needs to be parsed.\n * @returns {Object}\n * @api public\n */\nfunction querystring(query) {\n var parser = /([^=?#&]+)=?([^&]*)/g\n , result = {}\n , part;\n\n while (part = parser.exec(query)) {\n var key = decode(part[1])\n , value = decode(part[2]);\n\n //\n // Prevent overriding of existing properties. This ensures that build-in\n // methods like `toString` or __proto__ are not overriden by malicious\n // querystrings.\n //\n // In the case if failed decoding, we want to omit the key/value pairs\n // from the result.\n //\n if (key === null || value === null || key in result) continue;\n result[key] = value;\n }\n\n return result;\n}\n\n/**\n * Transform a query string to an object.\n *\n * @param {Object} obj Object that should be transformed.\n * @param {String} prefix Optional prefix.\n * @returns {String}\n * @api public\n */\nfunction querystringify(obj, prefix) {\n prefix = prefix || '';\n\n var pairs = []\n , value\n , key;\n\n //\n // Optionally prefix with a '?' if needed\n //\n if ('string' !== typeof prefix) prefix = '?';\n\n for (key in obj) {\n if (has.call(obj, key)) {\n value = obj[key];\n\n //\n // Edge cases where we actually want to encode the value to an empty\n // string instead of the stringified value.\n //\n if (!value && (value === null || value === undef || isNaN(value))) {\n value = '';\n }\n\n key = encode(key);\n value = encode(value);\n\n //\n // If we failed to encode the strings, we should bail out as we don't\n // want to add invalid strings to the query.\n //\n if (key === null || value === null) continue;\n pairs.push(key +'='+ value);\n }\n }\n\n return pairs.length ? prefix + pairs.join('&') : '';\n}\n\n//\n// Expose the module.\n//\nexports.stringify = querystringify;\nexports.parse = querystring;\n","'use strict';\n\n/**\n * Check if we're required to add a port number.\n *\n * @see https://url.spec.whatwg.org/#default-port\n * @param {Number|String} port Port number we need to check\n * @param {String} protocol Protocol we need to check against.\n * @returns {Boolean} Is it a default port for the given protocol\n * @api private\n */\nmodule.exports = function required(port, protocol) {\n protocol = protocol.split(':')[0];\n port = +port;\n\n if (!port) return false;\n\n switch (protocol) {\n case 'http':\n case 'ws':\n return port !== 80;\n\n case 'https':\n case 'wss':\n return port !== 443;\n\n case 'ftp':\n return port !== 21;\n\n case 'gopher':\n return port !== 70;\n\n case 'file':\n return false;\n }\n\n return port !== 0;\n};\n","import { startJupyterLiteServer } from './jlite';\nimport type { ThebeLiteGlobal } from './types';\n\ndeclare global {\n interface Window {\n thebeLite?: ThebeLiteGlobal;\n }\n}\n\nfunction setupThebeLite() {\n window.thebeLite = Object.assign(window.thebeLite ?? {}, { startJupyterLiteServer });\n}\n\nif (typeof window !== 'undefined') {\n console.debug('window is defined, setting up thebe-lite');\n setupThebeLite();\n console.debug('window.thebeLite', window.thebeLite);\n}\n\nexport * from './types';\nexport { startJupyterLiteServer, setupThebeLite };\n","import type { ServiceManager } from '@jupyterlab/services';\nimport { PageConfig } from '@jupyterlab/coreutils';\nimport { JupyterLiteServer } from '@jupyterlite/server';\nimport { LiteServerConfig } from './types';\n\nconst serverExtensions = [import('@jupyterlite/server-extension')];\n\nasync function createModule(scope: string, module: string) {\n try {\n const factory = await (window as any)._JUPYTERLAB[scope].get(module);\n return factory();\n } catch (e) {\n console.warn(`Failed to create module: package: ${scope}; module: ${module}`);\n throw e;\n }\n}\n\n/**\n * Iterate over active plugins in an extension.\n */\nfunction* activePlugins(extension: any) {\n // Handle commonjs or es2015 modules\n let exports;\n if (Object.prototype.hasOwnProperty.call(extension, '__esModule')) {\n exports = extension.default;\n } else {\n // CommonJS exports.\n exports = extension;\n }\n\n const plugins = Array.isArray(exports) ? exports : [exports];\n for (const plugin of plugins) {\n yield plugin;\n }\n}\n\nexport async function startJupyterLiteServer(config?: LiteServerConfig): Promise {\n /**\n * This is sufficent to initialise the global object?\n */\n PageConfig.getOption('');\n\n /**\n * Do not rely on a configuration being on the document body, accept configuration via arguments\n * and set options on the page config directly\n */\n if (config?.litePluginSettings) {\n PageConfig.setOption('litePluginSettings', JSON.stringify(config.litePluginSettings));\n }\n\n /**\n * Seems like there are 4 different extensions we may want to handle\n *\n * liteExtension - essential, as these are how kernels are added\n * federatedExtension - general jupyterlab extensions\n * federatedMimeExtension - render extensions? e.g. @jupyterlab/javascript-extension, @jupyterlab/json-extension\n * federatedStyles - ?\n *\n * TODO we're not suppporting all of these yet\n */\n\n const litePluginsToRegister: JupyterLiteServer.IPluginModule[] = [];\n\n // Add the base serverlite extensions\n const baseServerExtensions = await Promise.all(serverExtensions);\n baseServerExtensions.forEach((p) => {\n for (const plugin of activePlugins(p)) {\n litePluginsToRegister.push(plugin);\n }\n });\n\n // TODO get federated extensions in from config argument?\n const extensions: any[] = [];\n\n const liteExtensionPromises: any[] = [import('@jupyterlite/pyodide-kernel-extension')];\n\n extensions.forEach((data) => {\n if (data.liteExtension) {\n liteExtensionPromises.push(createModule(data.name, data.extension));\n return;\n }\n });\n\n // Add the serverlite federated extensions.\n const federatedLiteExtensions = await Promise.allSettled(liteExtensionPromises);\n federatedLiteExtensions.forEach((p) => {\n if (p.status === 'fulfilled') {\n for (const plugin of activePlugins(p.value)) {\n litePluginsToRegister.push(plugin);\n }\n } else {\n console.error(p.reason);\n }\n });\n\n // create the in-browser JupyterLite Server\n const jupyterLiteServer = new JupyterLiteServer({} as any);\n jupyterLiteServer.registerPluginModules(litePluginsToRegister);\n // start the server\n await jupyterLiteServer.start();\n\n const { serviceManager } = jupyterLiteServer;\n await serviceManager.ready;\n\n // TODO\n return serviceManager as unknown as ServiceManager;\n}\n","/*! *****************************************************************************\r\nCopyright (c) Microsoft Corporation.\r\n\r\nPermission to use, copy, modify, and/or distribute this software for any\r\npurpose with or without fee is hereby granted.\r\n\r\nTHE SOFTWARE IS PROVIDED \"AS IS\" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH\r\nREGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY\r\nAND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,\r\nINDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM\r\nLOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR\r\nOTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR\r\nPERFORMANCE OF THIS SOFTWARE.\r\n***************************************************************************** */\r\n/* global Reflect, Promise */\r\n\r\nvar extendStatics = function(d, b) {\r\n extendStatics = Object.setPrototypeOf ||\r\n ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||\r\n function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };\r\n return extendStatics(d, b);\r\n};\r\n\r\nexport function __extends(d, b) {\r\n if (typeof b !== \"function\" && b !== null)\r\n throw new TypeError(\"Class extends value \" + String(b) + \" is not a constructor or null\");\r\n extendStatics(d, b);\r\n function __() { this.constructor = d; }\r\n d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());\r\n}\r\n\r\nexport var __assign = function() {\r\n __assign = Object.assign || function __assign(t) {\r\n for (var s, i = 1, n = arguments.length; i < n; i++) {\r\n s = arguments[i];\r\n for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p)) t[p] = s[p];\r\n }\r\n return t;\r\n }\r\n return __assign.apply(this, arguments);\r\n}\r\n\r\nexport function __rest(s, e) {\r\n var t = {};\r\n for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p) && e.indexOf(p) < 0)\r\n t[p] = s[p];\r\n if (s != null && typeof Object.getOwnPropertySymbols === \"function\")\r\n for (var i = 0, p = Object.getOwnPropertySymbols(s); i < p.length; i++) {\r\n if (e.indexOf(p[i]) < 0 && Object.prototype.propertyIsEnumerable.call(s, p[i]))\r\n t[p[i]] = s[p[i]];\r\n }\r\n return t;\r\n}\r\n\r\nexport function __decorate(decorators, target, key, desc) {\r\n var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;\r\n if (typeof Reflect === \"object\" && typeof Reflect.decorate === \"function\") r = Reflect.decorate(decorators, target, key, desc);\r\n else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;\r\n return c > 3 && r && Object.defineProperty(target, key, r), r;\r\n}\r\n\r\nexport function __param(paramIndex, decorator) {\r\n return function (target, key) { decorator(target, key, paramIndex); }\r\n}\r\n\r\nexport function __metadata(metadataKey, metadataValue) {\r\n if (typeof Reflect === \"object\" && typeof Reflect.metadata === \"function\") return Reflect.metadata(metadataKey, metadataValue);\r\n}\r\n\r\nexport function __awaiter(thisArg, _arguments, P, generator) {\r\n function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }\r\n return new (P || (P = Promise))(function (resolve, reject) {\r\n function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }\r\n function rejected(value) { try { step(generator[\"throw\"](value)); } catch (e) { reject(e); } }\r\n function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }\r\n step((generator = generator.apply(thisArg, _arguments || [])).next());\r\n });\r\n}\r\n\r\nexport function __generator(thisArg, body) {\r\n var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;\r\n return g = { next: verb(0), \"throw\": verb(1), \"return\": verb(2) }, typeof Symbol === \"function\" && (g[Symbol.iterator] = function() { return this; }), g;\r\n function verb(n) { return function (v) { return step([n, v]); }; }\r\n function step(op) {\r\n if (f) throw new TypeError(\"Generator is already executing.\");\r\n while (_) try {\r\n if (f = 1, y && (t = op[0] & 2 ? y[\"return\"] : op[0] ? y[\"throw\"] || ((t = y[\"return\"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;\r\n if (y = 0, t) op = [op[0] & 2, t.value];\r\n switch (op[0]) {\r\n case 0: case 1: t = op; break;\r\n case 4: _.label++; return { value: op[1], done: false };\r\n case 5: _.label++; y = op[1]; op = [0]; continue;\r\n case 7: op = _.ops.pop(); _.trys.pop(); continue;\r\n default:\r\n if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }\r\n if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }\r\n if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }\r\n if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }\r\n if (t[2]) _.ops.pop();\r\n _.trys.pop(); continue;\r\n }\r\n op = body.call(thisArg, _);\r\n } catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }\r\n if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };\r\n }\r\n}\r\n\r\nexport var __createBinding = Object.create ? (function(o, m, k, k2) {\r\n if (k2 === undefined) k2 = k;\r\n Object.defineProperty(o, k2, { enumerable: true, get: function() { return m[k]; } });\r\n}) : (function(o, m, k, k2) {\r\n if (k2 === undefined) k2 = k;\r\n o[k2] = m[k];\r\n});\r\n\r\nexport function __exportStar(m, o) {\r\n for (var p in m) if (p !== \"default\" && !Object.prototype.hasOwnProperty.call(o, p)) __createBinding(o, m, p);\r\n}\r\n\r\nexport function __values(o) {\r\n var s = typeof Symbol === \"function\" && Symbol.iterator, m = s && o[s], i = 0;\r\n if (m) return m.call(o);\r\n if (o && typeof o.length === \"number\") return {\r\n next: function () {\r\n if (o && i >= o.length) o = void 0;\r\n return { value: o && o[i++], done: !o };\r\n }\r\n };\r\n throw new TypeError(s ? \"Object is not iterable.\" : \"Symbol.iterator is not defined.\");\r\n}\r\n\r\nexport function __read(o, n) {\r\n var m = typeof Symbol === \"function\" && o[Symbol.iterator];\r\n if (!m) return o;\r\n var i = m.call(o), r, ar = [], e;\r\n try {\r\n while ((n === void 0 || n-- > 0) && !(r = i.next()).done) ar.push(r.value);\r\n }\r\n catch (error) { e = { error: error }; }\r\n finally {\r\n try {\r\n if (r && !r.done && (m = i[\"return\"])) m.call(i);\r\n }\r\n finally { if (e) throw e.error; }\r\n }\r\n return ar;\r\n}\r\n\r\n/** @deprecated */\r\nexport function __spread() {\r\n for (var ar = [], i = 0; i < arguments.length; i++)\r\n ar = ar.concat(__read(arguments[i]));\r\n return ar;\r\n}\r\n\r\n/** @deprecated */\r\nexport function __spreadArrays() {\r\n for (var s = 0, i = 0, il = arguments.length; i < il; i++) s += arguments[i].length;\r\n for (var r = Array(s), k = 0, i = 0; i < il; i++)\r\n for (var a = arguments[i], j = 0, jl = a.length; j < jl; j++, k++)\r\n r[k] = a[j];\r\n return r;\r\n}\r\n\r\nexport function __spreadArray(to, from, pack) {\r\n if (pack || arguments.length === 2) for (var i = 0, l = from.length, ar; i < l; i++) {\r\n if (ar || !(i in from)) {\r\n if (!ar) ar = Array.prototype.slice.call(from, 0, i);\r\n ar[i] = from[i];\r\n }\r\n }\r\n return to.concat(ar || Array.prototype.slice.call(from));\r\n}\r\n\r\nexport function __await(v) {\r\n return this instanceof __await ? (this.v = v, this) : new __await(v);\r\n}\r\n\r\nexport function __asyncGenerator(thisArg, _arguments, generator) {\r\n if (!Symbol.asyncIterator) throw new TypeError(\"Symbol.asyncIterator is not defined.\");\r\n var g = generator.apply(thisArg, _arguments || []), i, q = [];\r\n return i = {}, verb(\"next\"), verb(\"throw\"), verb(\"return\"), i[Symbol.asyncIterator] = function () { return this; }, i;\r\n function verb(n) { if (g[n]) i[n] = function (v) { return new Promise(function (a, b) { q.push([n, v, a, b]) > 1 || resume(n, v); }); }; }\r\n function resume(n, v) { try { step(g[n](v)); } catch (e) { settle(q[0][3], e); } }\r\n function step(r) { r.value instanceof __await ? Promise.resolve(r.value.v).then(fulfill, reject) : settle(q[0][2], r); }\r\n function fulfill(value) { resume(\"next\", value); }\r\n function reject(value) { resume(\"throw\", value); }\r\n function settle(f, v) { if (f(v), q.shift(), q.length) resume(q[0][0], q[0][1]); }\r\n}\r\n\r\nexport function __asyncDelegator(o) {\r\n var i, p;\r\n return i = {}, verb(\"next\"), verb(\"throw\", function (e) { throw e; }), verb(\"return\"), i[Symbol.iterator] = function () { return this; }, i;\r\n function verb(n, f) { i[n] = o[n] ? function (v) { return (p = !p) ? { value: __await(o[n](v)), done: n === \"return\" } : f ? f(v) : v; } : f; }\r\n}\r\n\r\nexport function __asyncValues(o) {\r\n if (!Symbol.asyncIterator) throw new TypeError(\"Symbol.asyncIterator is not defined.\");\r\n var m = o[Symbol.asyncIterator], i;\r\n return m ? m.call(o) : (o = typeof __values === \"function\" ? __values(o) : o[Symbol.iterator](), i = {}, verb(\"next\"), verb(\"throw\"), verb(\"return\"), i[Symbol.asyncIterator] = function () { return this; }, i);\r\n function verb(n) { i[n] = o[n] && function (v) { return new Promise(function (resolve, reject) { v = o[n](v), settle(resolve, reject, v.done, v.value); }); }; }\r\n function settle(resolve, reject, d, v) { Promise.resolve(v).then(function(v) { resolve({ value: v, done: d }); }, reject); }\r\n}\r\n\r\nexport function __makeTemplateObject(cooked, raw) {\r\n if (Object.defineProperty) { Object.defineProperty(cooked, \"raw\", { value: raw }); } else { cooked.raw = raw; }\r\n return cooked;\r\n};\r\n\r\nvar __setModuleDefault = Object.create ? (function(o, v) {\r\n Object.defineProperty(o, \"default\", { enumerable: true, value: v });\r\n}) : function(o, v) {\r\n o[\"default\"] = v;\r\n};\r\n\r\nexport function __importStar(mod) {\r\n if (mod && mod.__esModule) return mod;\r\n var result = {};\r\n if (mod != null) for (var k in mod) if (k !== \"default\" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);\r\n __setModuleDefault(result, mod);\r\n return result;\r\n}\r\n\r\nexport function __importDefault(mod) {\r\n return (mod && mod.__esModule) ? mod : { default: mod };\r\n}\r\n\r\nexport function __classPrivateFieldGet(receiver, state, kind, f) {\r\n if (kind === \"a\" && !f) throw new TypeError(\"Private accessor was defined without a getter\");\r\n if (typeof state === \"function\" ? receiver !== state || !f : !state.has(receiver)) throw new TypeError(\"Cannot read private member from an object whose class did not declare it\");\r\n return kind === \"m\" ? f : kind === \"a\" ? f.call(receiver) : f ? f.value : state.get(receiver);\r\n}\r\n\r\nexport function __classPrivateFieldSet(receiver, state, value, kind, f) {\r\n if (kind === \"m\") throw new TypeError(\"Private method is not writable\");\r\n if (kind === \"a\" && !f) throw new TypeError(\"Private accessor was defined without a setter\");\r\n if (typeof state === \"function\" ? receiver !== state || !f : !state.has(receiver)) throw new TypeError(\"Cannot write private member to an object whose class did not declare it\");\r\n return (kind === \"a\" ? f.call(receiver, value) : f ? f.value = value : state.set(receiver, value)), value;\r\n}\r\n","'use strict';\n\nvar required = require('requires-port')\n , qs = require('querystringify')\n , controlOrWhitespace = /^[\\x00-\\x20\\u00a0\\u1680\\u2000-\\u200a\\u2028\\u2029\\u202f\\u205f\\u3000\\ufeff]+/\n , CRHTLF = /[\\n\\r\\t]/g\n , slashes = /^[A-Za-z][A-Za-z0-9+-.]*:\\/\\//\n , port = /:\\d+$/\n , protocolre = /^([a-z][a-z0-9.+-]*:)?(\\/\\/)?([\\\\/]+)?([\\S\\s]*)/i\n , windowsDriveLetter = /^[a-zA-Z]:/;\n\n/**\n * Remove control characters and whitespace from the beginning of a string.\n *\n * @param {Object|String} str String to trim.\n * @returns {String} A new string representing `str` stripped of control\n * characters and whitespace from its beginning.\n * @public\n */\nfunction trimLeft(str) {\n return (str ? str : '').toString().replace(controlOrWhitespace, '');\n}\n\n/**\n * These are the parse rules for the URL parser, it informs the parser\n * about:\n *\n * 0. The char it Needs to parse, if it's a string it should be done using\n * indexOf, RegExp using exec and NaN means set as current value.\n * 1. The property we should set when parsing this value.\n * 2. Indication if it's backwards or forward parsing, when set as number it's\n * the value of extra chars that should be split off.\n * 3. Inherit from location if non existing in the parser.\n * 4. `toLowerCase` the resulting value.\n */\nvar rules = [\n ['#', 'hash'], // Extract from the back.\n ['?', 'query'], // Extract from the back.\n function sanitize(address, url) { // Sanitize what is left of the address\n return isSpecial(url.protocol) ? address.replace(/\\\\/g, '/') : address;\n },\n ['/', 'pathname'], // Extract from the back.\n ['@', 'auth', 1], // Extract from the front.\n [NaN, 'host', undefined, 1, 1], // Set left over value.\n [/:(\\d*)$/, 'port', undefined, 1], // RegExp the back.\n [NaN, 'hostname', undefined, 1, 1] // Set left over.\n];\n\n/**\n * These properties should not be copied or inherited from. This is only needed\n * for all non blob URL's as a blob URL does not include a hash, only the\n * origin.\n *\n * @type {Object}\n * @private\n */\nvar ignore = { hash: 1, query: 1 };\n\n/**\n * The location object differs when your code is loaded through a normal page,\n * Worker or through a worker using a blob. And with the blobble begins the\n * trouble as the location object will contain the URL of the blob, not the\n * location of the page where our code is loaded in. The actual origin is\n * encoded in the `pathname` so we can thankfully generate a good \"default\"\n * location from it so we can generate proper relative URL's again.\n *\n * @param {Object|String} loc Optional default location object.\n * @returns {Object} lolcation object.\n * @public\n */\nfunction lolcation(loc) {\n var globalVar;\n\n if (typeof window !== 'undefined') globalVar = window;\n else if (typeof global !== 'undefined') globalVar = global;\n else if (typeof self !== 'undefined') globalVar = self;\n else globalVar = {};\n\n var location = globalVar.location || {};\n loc = loc || location;\n\n var finaldestination = {}\n , type = typeof loc\n , key;\n\n if ('blob:' === loc.protocol) {\n finaldestination = new Url(unescape(loc.pathname), {});\n } else if ('string' === type) {\n finaldestination = new Url(loc, {});\n for (key in ignore) delete finaldestination[key];\n } else if ('object' === type) {\n for (key in loc) {\n if (key in ignore) continue;\n finaldestination[key] = loc[key];\n }\n\n if (finaldestination.slashes === undefined) {\n finaldestination.slashes = slashes.test(loc.href);\n }\n }\n\n return finaldestination;\n}\n\n/**\n * Check whether a protocol scheme is special.\n *\n * @param {String} The protocol scheme of the URL\n * @return {Boolean} `true` if the protocol scheme is special, else `false`\n * @private\n */\nfunction isSpecial(scheme) {\n return (\n scheme === 'file:' ||\n scheme === 'ftp:' ||\n scheme === 'http:' ||\n scheme === 'https:' ||\n scheme === 'ws:' ||\n scheme === 'wss:'\n );\n}\n\n/**\n * @typedef ProtocolExtract\n * @type Object\n * @property {String} protocol Protocol matched in the URL, in lowercase.\n * @property {Boolean} slashes `true` if protocol is followed by \"//\", else `false`.\n * @property {String} rest Rest of the URL that is not part of the protocol.\n */\n\n/**\n * Extract protocol information from a URL with/without double slash (\"//\").\n *\n * @param {String} address URL we want to extract from.\n * @param {Object} location\n * @return {ProtocolExtract} Extracted information.\n * @private\n */\nfunction extractProtocol(address, location) {\n address = trimLeft(address);\n address = address.replace(CRHTLF, '');\n location = location || {};\n\n var match = protocolre.exec(address);\n var protocol = match[1] ? match[1].toLowerCase() : '';\n var forwardSlashes = !!match[2];\n var otherSlashes = !!match[3];\n var slashesCount = 0;\n var rest;\n\n if (forwardSlashes) {\n if (otherSlashes) {\n rest = match[2] + match[3] + match[4];\n slashesCount = match[2].length + match[3].length;\n } else {\n rest = match[2] + match[4];\n slashesCount = match[2].length;\n }\n } else {\n if (otherSlashes) {\n rest = match[3] + match[4];\n slashesCount = match[3].length;\n } else {\n rest = match[4]\n }\n }\n\n if (protocol === 'file:') {\n if (slashesCount >= 2) {\n rest = rest.slice(2);\n }\n } else if (isSpecial(protocol)) {\n rest = match[4];\n } else if (protocol) {\n if (forwardSlashes) {\n rest = rest.slice(2);\n }\n } else if (slashesCount >= 2 && isSpecial(location.protocol)) {\n rest = match[4];\n }\n\n return {\n protocol: protocol,\n slashes: forwardSlashes || isSpecial(protocol),\n slashesCount: slashesCount,\n rest: rest\n };\n}\n\n/**\n * Resolve a relative URL pathname against a base URL pathname.\n *\n * @param {String} relative Pathname of the relative URL.\n * @param {String} base Pathname of the base URL.\n * @return {String} Resolved pathname.\n * @private\n */\nfunction resolve(relative, base) {\n if (relative === '') return base;\n\n var path = (base || '/').split('/').slice(0, -1).concat(relative.split('/'))\n , i = path.length\n , last = path[i - 1]\n , unshift = false\n , up = 0;\n\n while (i--) {\n if (path[i] === '.') {\n path.splice(i, 1);\n } else if (path[i] === '..') {\n path.splice(i, 1);\n up++;\n } else if (up) {\n if (i === 0) unshift = true;\n path.splice(i, 1);\n up--;\n }\n }\n\n if (unshift) path.unshift('');\n if (last === '.' || last === '..') path.push('');\n\n return path.join('/');\n}\n\n/**\n * The actual URL instance. Instead of returning an object we've opted-in to\n * create an actual constructor as it's much more memory efficient and\n * faster and it pleases my OCD.\n *\n * It is worth noting that we should not use `URL` as class name to prevent\n * clashes with the global URL instance that got introduced in browsers.\n *\n * @constructor\n * @param {String} address URL we want to parse.\n * @param {Object|String} [location] Location defaults for relative paths.\n * @param {Boolean|Function} [parser] Parser for the query string.\n * @private\n */\nfunction Url(address, location, parser) {\n address = trimLeft(address);\n address = address.replace(CRHTLF, '');\n\n if (!(this instanceof Url)) {\n return new Url(address, location, parser);\n }\n\n var relative, extracted, parse, instruction, index, key\n , instructions = rules.slice()\n , type = typeof location\n , url = this\n , i = 0;\n\n //\n // The following if statements allows this module two have compatibility with\n // 2 different API:\n //\n // 1. Node.js's `url.parse` api which accepts a URL, boolean as arguments\n // where the boolean indicates that the query string should also be parsed.\n //\n // 2. The `URL` interface of the browser which accepts a URL, object as\n // arguments. The supplied object will be used as default values / fall-back\n // for relative paths.\n //\n if ('object' !== type && 'string' !== type) {\n parser = location;\n location = null;\n }\n\n if (parser && 'function' !== typeof parser) parser = qs.parse;\n\n location = lolcation(location);\n\n //\n // Extract protocol information before running the instructions.\n //\n extracted = extractProtocol(address || '', location);\n relative = !extracted.protocol && !extracted.slashes;\n url.slashes = extracted.slashes || relative && location.slashes;\n url.protocol = extracted.protocol || location.protocol || '';\n address = extracted.rest;\n\n //\n // When the authority component is absent the URL starts with a path\n // component.\n //\n if (\n extracted.protocol === 'file:' && (\n extracted.slashesCount !== 2 || windowsDriveLetter.test(address)) ||\n (!extracted.slashes &&\n (extracted.protocol ||\n extracted.slashesCount < 2 ||\n !isSpecial(url.protocol)))\n ) {\n instructions[3] = [/(.*)/, 'pathname'];\n }\n\n for (; i < instructions.length; i++) {\n instruction = instructions[i];\n\n if (typeof instruction === 'function') {\n address = instruction(address, url);\n continue;\n }\n\n parse = instruction[0];\n key = instruction[1];\n\n if (parse !== parse) {\n url[key] = address;\n } else if ('string' === typeof parse) {\n index = parse === '@'\n ? address.lastIndexOf(parse)\n : address.indexOf(parse);\n\n if (~index) {\n if ('number' === typeof instruction[2]) {\n url[key] = address.slice(0, index);\n address = address.slice(index + instruction[2]);\n } else {\n url[key] = address.slice(index);\n address = address.slice(0, index);\n }\n }\n } else if ((index = parse.exec(address))) {\n url[key] = index[1];\n address = address.slice(0, index.index);\n }\n\n url[key] = url[key] || (\n relative && instruction[3] ? location[key] || '' : ''\n );\n\n //\n // Hostname, host and protocol should be lowercased so they can be used to\n // create a proper `origin`.\n //\n if (instruction[4]) url[key] = url[key].toLowerCase();\n }\n\n //\n // Also parse the supplied query string in to an object. If we're supplied\n // with a custom parser as function use that instead of the default build-in\n // parser.\n //\n if (parser) url.query = parser(url.query);\n\n //\n // If the URL is relative, resolve the pathname against the base URL.\n //\n if (\n relative\n && location.slashes\n && url.pathname.charAt(0) !== '/'\n && (url.pathname !== '' || location.pathname !== '')\n ) {\n url.pathname = resolve(url.pathname, location.pathname);\n }\n\n //\n // Default to a / for pathname if none exists. This normalizes the URL\n // to always have a /\n //\n if (url.pathname.charAt(0) !== '/' && isSpecial(url.protocol)) {\n url.pathname = '/' + url.pathname;\n }\n\n //\n // We should not add port numbers if they are already the default port number\n // for a given protocol. As the host also contains the port number we're going\n // override it with the hostname which contains no port number.\n //\n if (!required(url.port, url.protocol)) {\n url.host = url.hostname;\n url.port = '';\n }\n\n //\n // Parse down the `auth` for the username and password.\n //\n url.username = url.password = '';\n\n if (url.auth) {\n index = url.auth.indexOf(':');\n\n if (~index) {\n url.username = url.auth.slice(0, index);\n url.username = encodeURIComponent(decodeURIComponent(url.username));\n\n url.password = url.auth.slice(index + 1);\n url.password = encodeURIComponent(decodeURIComponent(url.password))\n } else {\n url.username = encodeURIComponent(decodeURIComponent(url.auth));\n }\n\n url.auth = url.password ? url.username +':'+ url.password : url.username;\n }\n\n url.origin = url.protocol !== 'file:' && isSpecial(url.protocol) && url.host\n ? url.protocol +'//'+ url.host\n : 'null';\n\n //\n // The href is just the compiled result.\n //\n url.href = url.toString();\n}\n\n/**\n * This is convenience method for changing properties in the URL instance to\n * insure that they all propagate correctly.\n *\n * @param {String} part Property we need to adjust.\n * @param {Mixed} value The newly assigned value.\n * @param {Boolean|Function} fn When setting the query, it will be the function\n * used to parse the query.\n * When setting the protocol, double slash will be\n * removed from the final url if it is true.\n * @returns {URL} URL instance for chaining.\n * @public\n */\nfunction set(part, value, fn) {\n var url = this;\n\n switch (part) {\n case 'query':\n if ('string' === typeof value && value.length) {\n value = (fn || qs.parse)(value);\n }\n\n url[part] = value;\n break;\n\n case 'port':\n url[part] = value;\n\n if (!required(value, url.protocol)) {\n url.host = url.hostname;\n url[part] = '';\n } else if (value) {\n url.host = url.hostname +':'+ value;\n }\n\n break;\n\n case 'hostname':\n url[part] = value;\n\n if (url.port) value += ':'+ url.port;\n url.host = value;\n break;\n\n case 'host':\n url[part] = value;\n\n if (port.test(value)) {\n value = value.split(':');\n url.port = value.pop();\n url.hostname = value.join(':');\n } else {\n url.hostname = value;\n url.port = '';\n }\n\n break;\n\n case 'protocol':\n url.protocol = value.toLowerCase();\n url.slashes = !fn;\n break;\n\n case 'pathname':\n case 'hash':\n if (value) {\n var char = part === 'pathname' ? '/' : '#';\n url[part] = value.charAt(0) !== char ? char + value : value;\n } else {\n url[part] = value;\n }\n break;\n\n case 'username':\n case 'password':\n url[part] = encodeURIComponent(value);\n break;\n\n case 'auth':\n var index = value.indexOf(':');\n\n if (~index) {\n url.username = value.slice(0, index);\n url.username = encodeURIComponent(decodeURIComponent(url.username));\n\n url.password = value.slice(index + 1);\n url.password = encodeURIComponent(decodeURIComponent(url.password));\n } else {\n url.username = encodeURIComponent(decodeURIComponent(value));\n }\n }\n\n for (var i = 0; i < rules.length; i++) {\n var ins = rules[i];\n\n if (ins[4]) url[ins[1]] = url[ins[1]].toLowerCase();\n }\n\n url.auth = url.password ? url.username +':'+ url.password : url.username;\n\n url.origin = url.protocol !== 'file:' && isSpecial(url.protocol) && url.host\n ? url.protocol +'//'+ url.host\n : 'null';\n\n url.href = url.toString();\n\n return url;\n}\n\n/**\n * Transform the properties back in to a valid and full URL string.\n *\n * @param {Function} stringify Optional query stringify function.\n * @returns {String} Compiled version of the URL.\n * @public\n */\nfunction toString(stringify) {\n if (!stringify || 'function' !== typeof stringify) stringify = qs.stringify;\n\n var query\n , url = this\n , host = url.host\n , protocol = url.protocol;\n\n if (protocol && protocol.charAt(protocol.length - 1) !== ':') protocol += ':';\n\n var result =\n protocol +\n ((url.protocol && url.slashes) || isSpecial(url.protocol) ? '//' : '');\n\n if (url.username) {\n result += url.username;\n if (url.password) result += ':'+ url.password;\n result += '@';\n } else if (url.password) {\n result += ':'+ url.password;\n result += '@';\n } else if (\n url.protocol !== 'file:' &&\n isSpecial(url.protocol) &&\n !host &&\n url.pathname !== '/'\n ) {\n //\n // Add back the empty userinfo, otherwise the original invalid URL\n // might be transformed into a valid one with `url.pathname` as host.\n //\n result += '@';\n }\n\n //\n // Trailing colon is removed from `url.host` when it is parsed. If it still\n // ends with a colon, then add back the trailing colon that was removed. This\n // prevents an invalid URL from being transformed into a valid one.\n //\n if (host[host.length - 1] === ':' || (port.test(url.hostname) && !url.port)) {\n host += ':';\n }\n\n result += host + url.pathname;\n\n query = 'object' === typeof url.query ? stringify(url.query) : url.query;\n if (query) result += '?' !== query.charAt(0) ? '?'+ query : query;\n\n if (url.hash) result += url.hash;\n\n return result;\n}\n\nUrl.prototype = { set: set, toString: toString };\n\n//\n// Expose the URL parser and some additional properties that might be useful for\n// others or testing.\n//\nUrl.extractProtocol = extractProtocol;\nUrl.location = lolcation;\nUrl.trimLeft = trimLeft;\nUrl.qs = qs;\n\nmodule.exports = Url;\n","\"use strict\";\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.ActivityMonitor = void 0;\nconst signaling_1 = require(\"@lumino/signaling\");\n/**\n * A class that monitors activity on a signal.\n */\nclass ActivityMonitor {\n /**\n * Construct a new activity monitor.\n */\n constructor(options) {\n this._timer = -1;\n this._timeout = -1;\n this._isDisposed = false;\n this._activityStopped = new signaling_1.Signal(this);\n options.signal.connect(this._onSignalFired, this);\n this._timeout = options.timeout || 1000;\n }\n /**\n * A signal emitted when activity has ceased.\n */\n get activityStopped() {\n return this._activityStopped;\n }\n /**\n * The timeout associated with the monitor, in milliseconds.\n */\n get timeout() {\n return this._timeout;\n }\n set timeout(value) {\n this._timeout = value;\n }\n /**\n * Test whether the monitor has been disposed.\n *\n * #### Notes\n * This is a read-only property.\n */\n get isDisposed() {\n return this._isDisposed;\n }\n /**\n * Dispose of the resources used by the activity monitor.\n */\n dispose() {\n if (this._isDisposed) {\n return;\n }\n this._isDisposed = true;\n signaling_1.Signal.clearData(this);\n }\n /**\n * A signal handler for the monitored signal.\n */\n _onSignalFired(sender, args) {\n clearTimeout(this._timer);\n this._sender = sender;\n this._args = args;\n this._timer = setTimeout(() => {\n this._activityStopped.emit({\n sender: this._sender,\n args: this._args\n });\n }, this._timeout);\n }\n}\nexports.ActivityMonitor = ActivityMonitor;\n//# sourceMappingURL=activitymonitor.js.map","\"use strict\";\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/**\n * @packageDocumentation\n * @module coreutils\n */\nvar __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {\n if (k2 === undefined) k2 = k;\n var desc = Object.getOwnPropertyDescriptor(m, k);\n if (!desc || (\"get\" in desc ? !m.__esModule : desc.writable || desc.configurable)) {\n desc = { enumerable: true, get: function() { return m[k]; } };\n }\n Object.defineProperty(o, k2, desc);\n}) : (function(o, m, k, k2) {\n if (k2 === undefined) k2 = k;\n o[k2] = m[k];\n}));\nvar __exportStar = (this && this.__exportStar) || function(m, exports) {\n for (var p in m) if (p !== \"default\" && !Object.prototype.hasOwnProperty.call(exports, p)) __createBinding(exports, m, p);\n};\nObject.defineProperty(exports, \"__esModule\", { value: true });\n__exportStar(require(\"./activitymonitor\"), exports);\n__exportStar(require(\"./interfaces\"), exports);\n__exportStar(require(\"./markdowncodeblocks\"), exports);\n__exportStar(require(\"./pageconfig\"), exports);\n__exportStar(require(\"./path\"), exports);\n__exportStar(require(\"./signal\"), exports);\n__exportStar(require(\"./text\"), exports);\n__exportStar(require(\"./time\"), exports);\n__exportStar(require(\"./url\"), exports);\n//# sourceMappingURL=index.js.map","\"use strict\";\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\nObject.defineProperty(exports, \"__esModule\", { value: true });\n//# sourceMappingURL=interfaces.js.map","\"use strict\";\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.MarkdownCodeBlocks = void 0;\n/**\n * The namespace for code block functions which help\n * in extract code from markdown text\n */\nvar MarkdownCodeBlocks;\n(function (MarkdownCodeBlocks) {\n MarkdownCodeBlocks.CODE_BLOCK_MARKER = '```';\n const markdownExtensions = [\n '.markdown',\n '.mdown',\n '.mkdn',\n '.md',\n '.mkd',\n '.mdwn',\n '.mdtxt',\n '.mdtext',\n '.text',\n '.txt',\n '.Rmd'\n ];\n class MarkdownCodeBlock {\n constructor(startLine) {\n this.startLine = startLine;\n this.code = '';\n this.endLine = -1;\n }\n }\n MarkdownCodeBlocks.MarkdownCodeBlock = MarkdownCodeBlock;\n /**\n * Check whether the given file extension is a markdown extension\n * @param extension - A file extension\n *\n * @returns true/false depending on whether this is a supported markdown extension\n */\n function isMarkdown(extension) {\n return markdownExtensions.indexOf(extension) > -1;\n }\n MarkdownCodeBlocks.isMarkdown = isMarkdown;\n /**\n * Construct all code snippets from current text\n * (this could be potentially optimized if we can cache and detect differences)\n * @param text - A string to parse codeblocks from\n *\n * @returns An array of MarkdownCodeBlocks.\n */\n function findMarkdownCodeBlocks(text) {\n if (!text || text === '') {\n return [];\n }\n const lines = text.split('\\n');\n const codeBlocks = [];\n let currentBlock = null;\n for (let lineIndex = 0; lineIndex < lines.length; lineIndex++) {\n const line = lines[lineIndex];\n const lineContainsMarker = line.indexOf(MarkdownCodeBlocks.CODE_BLOCK_MARKER) === 0;\n const constructingBlock = currentBlock != null;\n // Skip this line if it is not part of any code block and doesn't contain a marker.\n if (!lineContainsMarker && !constructingBlock) {\n continue;\n }\n // Check if we are already constructing a code block.\n if (!constructingBlock) {\n // Start constructing a new code block.\n currentBlock = new MarkdownCodeBlock(lineIndex);\n // Check whether this is a single line code block of the form ```a = 10```.\n const firstIndex = line.indexOf(MarkdownCodeBlocks.CODE_BLOCK_MARKER);\n const lastIndex = line.lastIndexOf(MarkdownCodeBlocks.CODE_BLOCK_MARKER);\n const isSingleLine = firstIndex !== lastIndex;\n if (isSingleLine) {\n currentBlock.code = line.substring(firstIndex + MarkdownCodeBlocks.CODE_BLOCK_MARKER.length, lastIndex);\n currentBlock.endLine = lineIndex;\n codeBlocks.push(currentBlock);\n currentBlock = null;\n }\n }\n else if (currentBlock) {\n if (lineContainsMarker) {\n // End of block, finish it up.\n currentBlock.endLine = lineIndex - 1;\n codeBlocks.push(currentBlock);\n currentBlock = null;\n }\n else {\n // Append the current line.\n currentBlock.code += line + '\\n';\n }\n }\n }\n return codeBlocks;\n }\n MarkdownCodeBlocks.findMarkdownCodeBlocks = findMarkdownCodeBlocks;\n})(MarkdownCodeBlocks = exports.MarkdownCodeBlocks || (exports.MarkdownCodeBlocks = {}));\n//# sourceMappingURL=markdowncodeblocks.js.map","\"use strict\";\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\nvar __importDefault = (this && this.__importDefault) || function (mod) {\n return (mod && mod.__esModule) ? mod : { \"default\": mod };\n};\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.PageConfig = void 0;\nconst coreutils_1 = require(\"@lumino/coreutils\");\nconst minimist_1 = __importDefault(require(\"minimist\"));\nconst url_1 = require(\"./url\");\n/**\n * The namespace for `PageConfig` functions.\n */\nvar PageConfig;\n(function (PageConfig) {\n /**\n * Get global configuration data for the Jupyter application.\n *\n * @param name - The name of the configuration option.\n *\n * @returns The config value or an empty string if not found.\n *\n * #### Notes\n * All values are treated as strings.\n * For browser based applications, it is assumed that the page HTML\n * includes a script tag with the id `jupyter-config-data` containing the\n * configuration as valid JSON. In order to support the classic Notebook,\n * we fall back on checking for `body` data of the given `name`.\n *\n * For node applications, it is assumed that the process was launched\n * with a `--jupyter-config-data` option pointing to a JSON settings\n * file.\n */\n function getOption(name) {\n if (configData) {\n return configData[name] || getBodyData(name);\n }\n configData = Object.create(null);\n let found = false;\n // Use script tag if available.\n if (typeof document !== 'undefined' && document) {\n const el = document.getElementById('jupyter-config-data');\n if (el) {\n configData = JSON.parse(el.textContent || '');\n found = true;\n }\n }\n // Otherwise use CLI if given.\n if (!found && typeof process !== 'undefined' && process.argv) {\n try {\n const cli = (0, minimist_1.default)(process.argv.slice(2));\n const path = require('path');\n let fullPath = '';\n if ('jupyter-config-data' in cli) {\n fullPath = path.resolve(cli['jupyter-config-data']);\n }\n else if ('JUPYTER_CONFIG_DATA' in process.env) {\n fullPath = path.resolve(process.env['JUPYTER_CONFIG_DATA']);\n }\n if (fullPath) {\n // Force Webpack to ignore this require.\n // eslint-disable-next-line\n configData = eval('require')(fullPath);\n }\n }\n catch (e) {\n console.error(e);\n }\n }\n if (!coreutils_1.JSONExt.isObject(configData)) {\n configData = Object.create(null);\n }\n else {\n for (const key in configData) {\n // PageConfig expects strings\n if (typeof configData[key] !== 'string') {\n configData[key] = JSON.stringify(configData[key]);\n }\n }\n }\n return configData[name] || getBodyData(name);\n }\n PageConfig.getOption = getOption;\n /**\n * Set global configuration data for the Jupyter application.\n *\n * @param name - The name of the configuration option.\n * @param value - The value to set the option to.\n *\n * @returns The last config value or an empty string if it doesn't exist.\n */\n function setOption(name, value) {\n const last = getOption(name);\n configData[name] = value;\n return last;\n }\n PageConfig.setOption = setOption;\n /**\n * Get the base url for a Jupyter application, or the base url of the page.\n */\n function getBaseUrl() {\n return url_1.URLExt.normalize(getOption('baseUrl') || '/');\n }\n PageConfig.getBaseUrl = getBaseUrl;\n /**\n * Get the tree url for a JupyterLab application.\n */\n function getTreeUrl() {\n return url_1.URLExt.join(getBaseUrl(), getOption('treeUrl'));\n }\n PageConfig.getTreeUrl = getTreeUrl;\n /**\n * Get the base url for sharing links (usually baseUrl)\n */\n function getShareUrl() {\n return url_1.URLExt.normalize(getOption('shareUrl') || getBaseUrl());\n }\n PageConfig.getShareUrl = getShareUrl;\n /**\n * Get the tree url for shareable links.\n * Usually the same as treeUrl,\n * but overrideable e.g. when sharing with JupyterHub.\n */\n function getTreeShareUrl() {\n return url_1.URLExt.normalize(url_1.URLExt.join(getShareUrl(), getOption('treeUrl')));\n }\n PageConfig.getTreeShareUrl = getTreeShareUrl;\n /**\n * Create a new URL given an optional mode and tree path.\n *\n * This is used to create URLS when the mode or tree path change as the user\n * changes mode or the current document in the main area. If fields in\n * options are omitted, the value in PageConfig will be used.\n *\n * @param options - IGetUrlOptions for the new path.\n */\n function getUrl(options) {\n var _a, _b, _c, _d;\n let path = options.toShare ? getShareUrl() : getBaseUrl();\n const mode = (_a = options.mode) !== null && _a !== void 0 ? _a : getOption('mode');\n const workspace = (_b = options.workspace) !== null && _b !== void 0 ? _b : getOption('workspace');\n const labOrDoc = mode === 'single-document' ? 'doc' : 'lab';\n path = url_1.URLExt.join(path, labOrDoc);\n if (workspace !== PageConfig.defaultWorkspace) {\n path = url_1.URLExt.join(path, 'workspaces', encodeURIComponent((_c = getOption('workspace')) !== null && _c !== void 0 ? _c : PageConfig.defaultWorkspace));\n }\n const treePath = (_d = options.treePath) !== null && _d !== void 0 ? _d : getOption('treePath');\n if (treePath) {\n path = url_1.URLExt.join(path, 'tree', url_1.URLExt.encodeParts(treePath));\n }\n return path;\n }\n PageConfig.getUrl = getUrl;\n PageConfig.defaultWorkspace = 'default';\n /**\n * Get the base websocket url for a Jupyter application, or an empty string.\n */\n function getWsUrl(baseUrl) {\n let wsUrl = getOption('wsUrl');\n if (!wsUrl) {\n baseUrl = baseUrl ? url_1.URLExt.normalize(baseUrl) : getBaseUrl();\n if (baseUrl.indexOf('http') !== 0) {\n return '';\n }\n wsUrl = 'ws' + baseUrl.slice(4);\n }\n return url_1.URLExt.normalize(wsUrl);\n }\n PageConfig.getWsUrl = getWsUrl;\n /**\n * Returns the URL converting this notebook to a certain\n * format with nbconvert.\n */\n function getNBConvertURL({ path, format, download }) {\n const notebookPath = url_1.URLExt.encodeParts(path);\n const url = url_1.URLExt.join(getBaseUrl(), 'nbconvert', format, notebookPath);\n if (download) {\n return url + '?download=true';\n }\n return url;\n }\n PageConfig.getNBConvertURL = getNBConvertURL;\n /**\n * Get the authorization token for a Jupyter application.\n */\n function getToken() {\n return getOption('token') || getBodyData('jupyterApiToken');\n }\n PageConfig.getToken = getToken;\n /**\n * Get the Notebook version info [major, minor, patch].\n */\n function getNotebookVersion() {\n const notebookVersion = getOption('notebookVersion');\n if (notebookVersion === '') {\n return [0, 0, 0];\n }\n return JSON.parse(notebookVersion);\n }\n PageConfig.getNotebookVersion = getNotebookVersion;\n /**\n * Private page config data for the Jupyter application.\n */\n let configData = null;\n /**\n * Get a url-encoded item from `body.data` and decode it\n * We should never have any encoded URLs anywhere else in code\n * until we are building an actual request.\n */\n function getBodyData(key) {\n if (typeof document === 'undefined' || !document.body) {\n return '';\n }\n const val = document.body.dataset[key];\n if (typeof val === 'undefined') {\n return '';\n }\n return decodeURIComponent(val);\n }\n /**\n * The namespace for page config `Extension` functions.\n */\n let Extension;\n (function (Extension) {\n /**\n * Populate an array from page config.\n *\n * @param key - The page config key (e.g., `deferredExtensions`).\n *\n * #### Notes\n * This is intended for `deferredExtensions` and `disabledExtensions`.\n */\n function populate(key) {\n try {\n const raw = getOption(key);\n if (raw) {\n return JSON.parse(raw);\n }\n }\n catch (error) {\n console.warn(`Unable to parse ${key}.`, error);\n }\n return [];\n }\n /**\n * The collection of deferred extensions in page config.\n */\n Extension.deferred = populate('deferredExtensions');\n /**\n * The collection of disabled extensions in page config.\n */\n Extension.disabled = populate('disabledExtensions');\n /**\n * Returns whether a plugin is deferred.\n *\n * @param id - The plugin ID.\n */\n function isDeferred(id) {\n // Check for either a full plugin id match or an extension\n // name match.\n const separatorIndex = id.indexOf(':');\n let extName = '';\n if (separatorIndex !== -1) {\n extName = id.slice(0, separatorIndex);\n }\n return Extension.deferred.some(val => val === id || (extName && val === extName));\n }\n Extension.isDeferred = isDeferred;\n /**\n * Returns whether a plugin is disabled.\n *\n * @param id - The plugin ID.\n */\n function isDisabled(id) {\n // Check for either a full plugin id match or an extension\n // name match.\n const separatorIndex = id.indexOf(':');\n let extName = '';\n if (separatorIndex !== -1) {\n extName = id.slice(0, separatorIndex);\n }\n return Extension.disabled.some(val => val === id || (extName && val === extName));\n }\n Extension.isDisabled = isDisabled;\n })(Extension = PageConfig.Extension || (PageConfig.Extension = {}));\n})(PageConfig = exports.PageConfig || (exports.PageConfig = {}));\n//# sourceMappingURL=pageconfig.js.map","\"use strict\";\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.PathExt = void 0;\nconst path_1 = require(\"path\");\n/**\n * The namespace for path-related functions.\n *\n * Note that Jupyter server paths do not start with a leading slash.\n */\nvar PathExt;\n(function (PathExt) {\n /**\n * Join all arguments together and normalize the resulting path.\n * Arguments must be strings. In v0.8, non-string arguments were silently ignored. In v0.10 and up, an exception is thrown.\n *\n * @param paths - The string paths to join.\n */\n function join(...paths) {\n const path = path_1.posix.join(...paths);\n return path === '.' ? '' : removeSlash(path);\n }\n PathExt.join = join;\n /**\n * Return the last portion of a path. Similar to the Unix basename command.\n * Often used to extract the file name from a fully qualified path.\n *\n * @param path - The path to evaluate.\n *\n * @param ext - An extension to remove from the result.\n */\n function basename(path, ext) {\n return path_1.posix.basename(path, ext);\n }\n PathExt.basename = basename;\n /**\n * Get the directory name of a path, similar to the Unix dirname command.\n * When an empty path is given, returns the root path.\n *\n * @param path - The file path.\n */\n function dirname(path) {\n const dir = removeSlash(path_1.posix.dirname(path));\n return dir === '.' ? '' : dir;\n }\n PathExt.dirname = dirname;\n /**\n * Get the extension of the path.\n *\n * @param path - The file path.\n *\n * @returns the extension of the file.\n *\n * #### Notes\n * The extension is the string from the last occurrence of the `.`\n * character to end of string in the last portion of the path, inclusive.\n * If there is no `.` in the last portion of the path, or if the first\n * character of the basename of path [[basename]] is `.`, then an\n * empty string is returned.\n */\n function extname(path) {\n return path_1.posix.extname(path);\n }\n PathExt.extname = extname;\n /**\n * Normalize a string path, reducing '..' and '.' parts.\n * When multiple slashes are found, they're replaced by a single one; when the path contains a trailing slash, it is preserved. On Windows backslashes are used.\n * When an empty path is given, returns the root path.\n *\n * @param path - The string path to normalize.\n */\n function normalize(path) {\n if (path === '') {\n return '';\n }\n return removeSlash(path_1.posix.normalize(path));\n }\n PathExt.normalize = normalize;\n /**\n * Resolve a sequence of paths or path segments into an absolute path.\n * The root path in the application has no leading slash, so it is removed.\n *\n * @param parts - The paths to join.\n *\n * #### Notes\n * The right-most parameter is considered \\{to\\}. Other parameters are considered an array of \\{from\\}.\n *\n * Starting from leftmost \\{from\\} parameter, resolves \\{to\\} to an absolute path.\n *\n * If \\{to\\} isn't already absolute, \\{from\\} arguments are prepended in right to left order, until an absolute path is found. If after using all \\{from\\} paths still no absolute path is found, the current working directory is used as well. The resulting path is normalized, and trailing slashes are removed unless the path gets resolved to the root directory.\n */\n function resolve(...parts) {\n return removeSlash(path_1.posix.resolve(...parts));\n }\n PathExt.resolve = resolve;\n /**\n * Solve the relative path from \\{from\\} to \\{to\\}.\n *\n * @param from - The source path.\n *\n * @param to - The target path.\n *\n * #### Notes\n * If from and to each resolve to the same path (after calling\n * path.resolve() on each), a zero-length string is returned.\n * If a zero-length string is passed as from or to, `/`\n * will be used instead of the zero-length strings.\n */\n function relative(from, to) {\n return removeSlash(path_1.posix.relative(from, to));\n }\n PathExt.relative = relative;\n /**\n * Normalize a file extension to be of the type `'.foo'`.\n *\n * @param extension - the file extension.\n *\n * #### Notes\n * Adds a leading dot if not present and converts to lower case.\n */\n function normalizeExtension(extension) {\n if (extension.length > 0 && extension.indexOf('.') !== 0) {\n extension = `.${extension}`;\n }\n return extension;\n }\n PathExt.normalizeExtension = normalizeExtension;\n /**\n * Remove the leading slash from a path.\n *\n * @param path: the path from which to remove a leading slash.\n */\n function removeSlash(path) {\n if (path.indexOf('/') === 0) {\n path = path.slice(1);\n }\n return path;\n }\n PathExt.removeSlash = removeSlash;\n})(PathExt = exports.PathExt || (exports.PathExt = {}));\n//# sourceMappingURL=path.js.map","\"use strict\";\n/*\n * Copyright (c) Jupyter Development Team.\n * Distributed under the terms of the Modified BSD License.\n */\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.signalToPromise = void 0;\nconst coreutils_1 = require(\"@lumino/coreutils\");\n/**\n * Convert a signal into a promise for the first emitted value.\n *\n * @param signal - The signal we are listening to.\n * @param timeout - Timeout to wait for signal in ms (not timeout if not defined or 0)\n *\n * @returns a Promise that resolves with a `(sender, args)` pair.\n */\nfunction signalToPromise(signal, timeout) {\n const waitForSignal = new coreutils_1.PromiseDelegate();\n function cleanup() {\n signal.disconnect(slot);\n }\n function slot(sender, args) {\n cleanup();\n waitForSignal.resolve([sender, args]);\n }\n signal.connect(slot);\n if ((timeout !== null && timeout !== void 0 ? timeout : 0) > 0) {\n setTimeout(() => {\n cleanup();\n waitForSignal.reject(`Signal not emitted within ${timeout} ms.`);\n }, timeout);\n }\n return waitForSignal.promise;\n}\nexports.signalToPromise = signalToPromise;\n//# sourceMappingURL=signal.js.map","\"use strict\";\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.Text = void 0;\n/**\n * The namespace for text-related functions.\n */\nvar Text;\n(function (Text) {\n // javascript stores text as utf16 and string indices use \"code units\",\n // which stores high-codepoint characters as \"surrogate pairs\",\n // which occupy two indices in the javascript string.\n // We need to translate cursor_pos in the Jupyter protocol (in characters)\n // to js offset (with surrogate pairs taking two spots).\n const HAS_SURROGATES = '𝐚'.length > 1;\n /**\n * Convert a javascript string index into a unicode character offset\n *\n * @param jsIdx - The javascript string index (counting surrogate pairs)\n *\n * @param text - The text in which the offset is calculated\n *\n * @returns The unicode character offset\n */\n function jsIndexToCharIndex(jsIdx, text) {\n if (HAS_SURROGATES) {\n // not using surrogates, nothing to do\n return jsIdx;\n }\n let charIdx = jsIdx;\n for (let i = 0; i + 1 < text.length && i < jsIdx; i++) {\n const charCode = text.charCodeAt(i);\n // check for surrogate pair\n if (charCode >= 0xd800 && charCode <= 0xdbff) {\n const nextCharCode = text.charCodeAt(i + 1);\n if (nextCharCode >= 0xdc00 && nextCharCode <= 0xdfff) {\n charIdx--;\n i++;\n }\n }\n }\n return charIdx;\n }\n Text.jsIndexToCharIndex = jsIndexToCharIndex;\n /**\n * Convert a unicode character offset to a javascript string index.\n *\n * @param charIdx - The index in unicode characters\n *\n * @param text - The text in which the offset is calculated\n *\n * @returns The js-native index\n */\n function charIndexToJsIndex(charIdx, text) {\n if (HAS_SURROGATES) {\n // not using surrogates, nothing to do\n return charIdx;\n }\n let jsIdx = charIdx;\n for (let i = 0; i + 1 < text.length && i < jsIdx; i++) {\n const charCode = text.charCodeAt(i);\n // check for surrogate pair\n if (charCode >= 0xd800 && charCode <= 0xdbff) {\n const nextCharCode = text.charCodeAt(i + 1);\n if (nextCharCode >= 0xdc00 && nextCharCode <= 0xdfff) {\n jsIdx++;\n i++;\n }\n }\n }\n return jsIdx;\n }\n Text.charIndexToJsIndex = charIndexToJsIndex;\n /**\n * Given a 'snake-case', 'snake_case', 'snake:case', or\n * 'snake case' string, will return the camel case version: 'snakeCase'.\n *\n * @param str: the snake-case input string.\n *\n * @param upper: default = false. If true, the first letter of the\n * returned string will be capitalized.\n *\n * @returns the camel case version of the input string.\n */\n function camelCase(str, upper = false) {\n return str.replace(/^(\\w)|[\\s-_:]+(\\w)/g, function (match, p1, p2) {\n if (p2) {\n return p2.toUpperCase();\n }\n else {\n return upper ? p1.toUpperCase() : p1.toLowerCase();\n }\n });\n }\n Text.camelCase = camelCase;\n /**\n * Given a string, title case the words in the string.\n *\n * @param str: the string to title case.\n *\n * @returns the same string, but with each word capitalized.\n */\n function titleCase(str) {\n return (str || '')\n .toLowerCase()\n .split(' ')\n .map(word => word.charAt(0).toUpperCase() + word.slice(1))\n .join(' ');\n }\n Text.titleCase = titleCase;\n})(Text = exports.Text || (exports.Text = {}));\n//# sourceMappingURL=text.js.map","\"use strict\";\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.Time = void 0;\n/**\n * A list of time units with their associated value in milliseconds.\n */\nconst UNITS = [\n { name: 'years', milliseconds: 365 * 24 * 60 * 60 * 1000 },\n { name: 'months', milliseconds: 30 * 24 * 60 * 60 * 1000 },\n { name: 'days', milliseconds: 24 * 60 * 60 * 1000 },\n { name: 'hours', milliseconds: 60 * 60 * 1000 },\n { name: 'minutes', milliseconds: 60 * 1000 },\n { name: 'seconds', milliseconds: 1000 }\n];\n/**\n * The namespace for date functions.\n */\nvar Time;\n(function (Time) {\n /**\n * Convert a timestring to a human readable string (e.g. 'two minutes ago').\n *\n * @param value - The date timestring or date object.\n *\n * @returns A formatted date.\n */\n function formatHuman(value) {\n const lang = document.documentElement.lang || 'en';\n const formatter = new Intl.RelativeTimeFormat(lang, { numeric: 'auto' });\n const delta = new Date(value).getTime() - Date.now();\n for (let unit of UNITS) {\n const amount = Math.ceil(delta / unit.milliseconds);\n if (amount === 0) {\n continue;\n }\n return formatter.format(amount, unit.name);\n }\n return formatter.format(0, 'seconds');\n }\n Time.formatHuman = formatHuman;\n /**\n * Convenient helper to convert a timestring to a date format.\n *\n * @param value - The date timestring or date object.\n *\n * @returns A formatted date.\n */\n function format(value) {\n const lang = document.documentElement.lang || 'en';\n const formatter = new Intl.DateTimeFormat(lang, {\n dateStyle: 'short',\n timeStyle: 'short'\n });\n return formatter.format(new Date(value));\n }\n Time.format = format;\n})(Time = exports.Time || (exports.Time = {}));\n//# sourceMappingURL=time.js.map","\"use strict\";\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\nvar __importDefault = (this && this.__importDefault) || function (mod) {\n return (mod && mod.__esModule) ? mod : { \"default\": mod };\n};\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.URLExt = void 0;\nconst path_1 = require(\"path\");\nconst url_parse_1 = __importDefault(require(\"url-parse\"));\n/**\n * The namespace for URL-related functions.\n */\nvar URLExt;\n(function (URLExt) {\n /**\n * Parse a url into a URL object.\n *\n * @param urlString - The URL string to parse.\n *\n * @returns A URL object.\n */\n function parse(url) {\n if (typeof document !== 'undefined' && document) {\n const a = document.createElement('a');\n a.href = url;\n return a;\n }\n return (0, url_parse_1.default)(url);\n }\n URLExt.parse = parse;\n /**\n * Parse URL and retrieve hostname\n *\n * @param url - The URL string to parse\n *\n * @returns a hostname string value\n */\n function getHostName(url) {\n return (0, url_parse_1.default)(url).hostname;\n }\n URLExt.getHostName = getHostName;\n function normalize(url) {\n return url && parse(url).toString();\n }\n URLExt.normalize = normalize;\n /**\n * Join a sequence of url components and normalizes as in node `path.join`.\n *\n * @param parts - The url components.\n *\n * @returns the joined url.\n */\n function join(...parts) {\n let u = (0, url_parse_1.default)(parts[0], {});\n // Schema-less URL can be only parsed as relative to a base URL\n // see https://github.com/unshiftio/url-parse/issues/219#issuecomment-1002219326\n const isSchemaLess = u.protocol === '' && u.slashes;\n if (isSchemaLess) {\n u = (0, url_parse_1.default)(parts[0], 'https:' + parts[0]);\n }\n const prefix = `${isSchemaLess ? '' : u.protocol}${u.slashes ? '//' : ''}${u.auth}${u.auth ? '@' : ''}${u.host}`;\n // If there was a prefix, then the first path must start at the root.\n const path = path_1.posix.join(`${!!prefix && u.pathname[0] !== '/' ? '/' : ''}${u.pathname}`, ...parts.slice(1));\n return `${prefix}${path === '.' ? '' : path}`;\n }\n URLExt.join = join;\n /**\n * Encode the components of a multi-segment url.\n *\n * @param url - The url to encode.\n *\n * @returns the encoded url.\n *\n * #### Notes\n * Preserves the `'/'` separators.\n * Should not include the base url, since all parts are escaped.\n */\n function encodeParts(url) {\n return join(...url.split('/').map(encodeURIComponent));\n }\n URLExt.encodeParts = encodeParts;\n /**\n * Return a serialized object string suitable for a query.\n *\n * @param object - The source object.\n *\n * @returns an encoded url query.\n *\n * #### Notes\n * Modified version of [stackoverflow](http://stackoverflow.com/a/30707423).\n */\n function objectToQueryString(value) {\n const keys = Object.keys(value).filter(key => key.length > 0);\n if (!keys.length) {\n return '';\n }\n return ('?' +\n keys\n .map(key => {\n const content = encodeURIComponent(String(value[key]));\n return key + (content ? '=' + content : '');\n })\n .join('&'));\n }\n URLExt.objectToQueryString = objectToQueryString;\n /**\n * Return a parsed object that represents the values in a query string.\n */\n function queryStringToObject(value) {\n return value\n .replace(/^\\?/, '')\n .split('&')\n .reduce((acc, val) => {\n const [key, value] = val.split('=');\n if (key.length > 0) {\n acc[key] = decodeURIComponent(value || '');\n }\n return acc;\n }, {});\n }\n URLExt.queryStringToObject = queryStringToObject;\n /**\n * Test whether the url is a local url.\n *\n * #### Notes\n * This function returns `false` for any fully qualified url, including\n * `data:`, `file:`, and `//` protocol URLs.\n */\n function isLocal(url) {\n const { protocol } = parse(url);\n return ((!protocol || url.toLowerCase().indexOf(protocol) !== 0) &&\n url.indexOf('/') !== 0);\n }\n URLExt.isLocal = isLocal;\n})(URLExt = exports.URLExt || (exports.URLExt = {}));\n//# sourceMappingURL=url.js.map","import { PageConfig } from '@jupyterlab/coreutils';\nimport mime from 'mime';\nimport { Token } from '@lumino/coreutils';\n/**\n * The token for the settings service.\n */\nexport const IContents = new Token('@jupyterlite/contents:IContents');\n/**\n * Commonly-used mimetypes\n */\nexport var MIME;\n(function (MIME) {\n MIME.JSON = 'application/json';\n MIME.PLAIN_TEXT = 'text/plain';\n MIME.OCTET_STREAM = 'octet/stream';\n})(MIME || (MIME = {}));\n/**\n * A namespace for file constructs.\n */\nexport var FILE;\n(function (FILE) {\n /**\n * Build-time configured file types.\n */\n const TYPES = JSON.parse(PageConfig.getOption('fileTypes') || '{}');\n /**\n * Get a mimetype (or fallback).\n */\n function getType(ext, defaultType = null) {\n ext = ext.toLowerCase();\n for (const fileType of Object.values(TYPES)) {\n for (const fileExt of fileType.extensions || []) {\n if (fileExt === ext && fileType.mimeTypes && fileType.mimeTypes.length) {\n return fileType.mimeTypes[0];\n }\n }\n }\n return mime.getType(ext) || defaultType || MIME.OCTET_STREAM;\n }\n FILE.getType = getType;\n /**\n * Determine whether the given extension matches a given fileFormat.\n */\n function hasFormat(ext, fileFormat) {\n ext = ext.toLowerCase();\n for (const fileType of Object.values(TYPES)) {\n if (fileType.fileFormat !== fileFormat) {\n continue;\n }\n for (const fileExt of fileType.extensions || []) {\n if (fileExt === ext) {\n return true;\n }\n }\n }\n return false;\n }\n FILE.hasFormat = hasFormat;\n})(FILE || (FILE = {}));\n/**\n * The token for the BroadcastChannel broadcaster.\n */\nexport const IBroadcastChannelWrapper = new Token('@jupyterlite/contents:IBroadcastChannelWrapper');\n//# sourceMappingURL=tokens.js.map","// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\nimport { Token } from '@lumino/coreutils';\n/**\n * The token for the kernels service.\n */\nexport const IKernels = new Token('@jupyterlite/kernel:IKernels');\n/**\n * The kernel name of last resort.\n */\nexport const FALLBACK_KERNEL = 'javascript';\n/**\n * The token for the kernel spec service.\n */\nexport const IKernelSpecs = new Token('@jupyterlite/kernel:IKernelSpecs');\n//# sourceMappingURL=tokens.js.map","// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\nimport { PageConfig, URLExt } from '@jupyterlab/coreutils';\nimport { IServiceWorkerManager, } from '@jupyterlite/server';\nimport { IKernelSpecs } from '@jupyterlite/kernel';\nimport { IBroadcastChannelWrapper } from '@jupyterlite/contents';\nexport * as KERNEL_SETTINGS_SCHEMA from '../schema/kernel.v0.schema.json';\nimport KERNEL_ICON_SVG_STR from '../style/img/pyodide.svg';\nconst KERNEL_ICON_URL = `data:image/svg+xml;base64,${btoa(KERNEL_ICON_SVG_STR)}`;\n/**\n * The default CDN fallback for Pyodide\n */\nconst PYODIDE_CDN_URL = 'https://cdn.jsdelivr.net/pyodide/v0.24.1/full/pyodide.js';\n/**\n * The id for the extension, and key in the litePlugins.\n */\nconst PLUGIN_ID = '@jupyterlite/pyodide-kernel-extension:kernel';\n/**\n * A plugin to register the Pyodide kernel.\n */\nconst kernel = {\n id: PLUGIN_ID,\n autoStart: true,\n requires: [IKernelSpecs],\n optional: [IServiceWorkerManager, IBroadcastChannelWrapper],\n activate: (app, kernelspecs, serviceWorker, broadcastChannel) => {\n const config = JSON.parse(PageConfig.getOption('litePluginSettings') || '{}')[PLUGIN_ID] || {};\n const url = config.pyodideUrl || PYODIDE_CDN_URL;\n const pyodideUrl = URLExt.parse(url).href;\n const pipliteWheelUrl = config.pipliteWheelUrl\n ? URLExt.parse(config.pipliteWheelUrl).href\n : undefined;\n const rawPipUrls = config.pipliteUrls || [];\n const pipliteUrls = rawPipUrls.map((pipUrl) => URLExt.parse(pipUrl).href);\n const disablePyPIFallback = !!config.disablePyPIFallback;\n kernelspecs.register({\n spec: {\n name: 'python',\n display_name: 'Python (Pyodide)',\n language: 'python',\n argv: [],\n resources: {\n 'logo-32x32': KERNEL_ICON_URL,\n 'logo-64x64': KERNEL_ICON_URL,\n },\n },\n create: async (options) => {\n const { PyodideKernel } = await import('@jupyterlite/pyodide-kernel');\n const mountDrive = !!((serviceWorker === null || serviceWorker === void 0 ? void 0 : serviceWorker.enabled) && (broadcastChannel === null || broadcastChannel === void 0 ? void 0 : broadcastChannel.enabled));\n if (mountDrive) {\n console.info('Pyodide contents will be synced with Jupyter Contents');\n }\n else {\n console.warn('Pyodide contents will NOT be synced with Jupyter Contents');\n }\n return new PyodideKernel({\n ...options,\n pyodideUrl,\n pipliteWheelUrl,\n pipliteUrls,\n disablePyPIFallback,\n mountDrive,\n });\n },\n });\n },\n};\nconst plugins = [kernel];\nexport default plugins;\n","import { PageConfig, URLExt } from '@jupyterlab/coreutils';\nimport { PathExt } from '@jupyterlab/coreutils';\nimport { MIME, FILE } from './tokens';\nimport { PromiseDelegate } from '@lumino/coreutils';\n/**\n * The name of the local storage.\n */\nconst DEFAULT_STORAGE_NAME = 'JupyterLite Storage';\n/**\n * The number of checkpoints to save.\n */\nconst N_CHECKPOINTS = 5;\n/**\n * A class to handle requests to /api/contents\n */\nexport class Contents {\n /**\n * Construct a new localForage-powered contents provider\n */\n constructor(options) {\n /**\n * A reducer for turning arbitrary binary into a string\n */\n this.reduceBytesToString = (data, byte) => {\n return data + String.fromCharCode(byte);\n };\n this._serverContents = new Map();\n this._storageName = DEFAULT_STORAGE_NAME;\n this._storageDrivers = null;\n this._localforage = options.localforage;\n this._storageName = options.storageName || DEFAULT_STORAGE_NAME;\n this._storageDrivers = options.storageDrivers || null;\n this._ready = new PromiseDelegate();\n }\n /**\n * Finish any initialization after server has started and all extensions are applied.\n */\n async initialize() {\n await this.initStorage();\n this._ready.resolve(void 0);\n }\n /**\n * Initialize all storage instances\n */\n async initStorage() {\n this._storage = this.createDefaultStorage();\n this._counters = this.createDefaultCounters();\n this._checkpoints = this.createDefaultCheckpoints();\n }\n /**\n * A promise that resolves once all storage is fully initialized.\n */\n get ready() {\n return this._ready.promise;\n }\n /**\n * A lazy reference to the underlying storage.\n */\n get storage() {\n return this.ready.then(() => this._storage);\n }\n /**\n * A lazy reference to the underlying counters.\n */\n get counters() {\n return this.ready.then(() => this._counters);\n }\n /**\n * A lazy reference to the underlying checkpoints.\n */\n get checkpoints() {\n return this.ready.then(() => this._checkpoints);\n }\n /**\n * Get default options for localForage instances\n */\n get defaultStorageOptions() {\n const driver = this._storageDrivers && this._storageDrivers.length ? this._storageDrivers : null;\n return {\n version: 1,\n name: this._storageName,\n ...(driver ? { driver } : {}),\n };\n }\n /**\n * Initialize the default storage for contents.\n */\n createDefaultStorage() {\n return this._localforage.createInstance({\n description: 'Offline Storage for Notebooks and Files',\n storeName: 'files',\n ...this.defaultStorageOptions,\n });\n }\n /**\n * Initialize the default storage for counting file suffixes.\n */\n createDefaultCounters() {\n return this._localforage.createInstance({\n description: 'Store the current file suffix counters',\n storeName: 'counters',\n ...this.defaultStorageOptions,\n });\n }\n /**\n * Create the default checkpoint storage.\n */\n createDefaultCheckpoints() {\n return this._localforage.createInstance({\n description: 'Offline Storage for Checkpoints',\n storeName: 'checkpoints',\n ...this.defaultStorageOptions,\n });\n }\n /**\n * Create a new untitled file or directory in the specified directory path.\n *\n * @param options: The options used to create the file.\n *\n * @returns A promise which resolves with the created file content when the file is created.\n */\n async newUntitled(options) {\n var _a, _b, _c;\n const path = (_a = options === null || options === void 0 ? void 0 : options.path) !== null && _a !== void 0 ? _a : '';\n const type = (_b = options === null || options === void 0 ? void 0 : options.type) !== null && _b !== void 0 ? _b : 'notebook';\n const created = new Date().toISOString();\n let dirname = PathExt.dirname(path);\n const basename = PathExt.basename(path);\n const extname = PathExt.extname(path);\n const item = await this.get(dirname);\n // handle the case of \"Save As\", where the path points to the new file\n // to create, e.g. subfolder/example-copy.ipynb\n let name = '';\n if (path && !extname && item) {\n // directory\n dirname = `${path}/`;\n name = '';\n }\n else if (dirname && basename) {\n // file in a subfolder\n dirname = `${dirname}/`;\n name = basename;\n }\n else {\n // file at the top level\n dirname = '';\n name = path;\n }\n let file;\n switch (type) {\n case 'directory': {\n const counter = await this._incrementCounter('directory');\n name = `Untitled Folder${counter || ''}`;\n file = {\n name,\n path: `${dirname}${name}`,\n last_modified: created,\n created,\n format: 'json',\n mimetype: '',\n content: null,\n size: 0,\n writable: true,\n type: 'directory',\n };\n break;\n }\n case 'notebook': {\n const counter = await this._incrementCounter('notebook');\n name = name || `Untitled${counter || ''}.ipynb`;\n file = {\n name,\n path: `${dirname}${name}`,\n last_modified: created,\n created,\n format: 'json',\n mimetype: MIME.JSON,\n content: Private.EMPTY_NB,\n size: JSON.stringify(Private.EMPTY_NB).length,\n writable: true,\n type: 'notebook',\n };\n break;\n }\n default: {\n const ext = (_c = options === null || options === void 0 ? void 0 : options.ext) !== null && _c !== void 0 ? _c : '.txt';\n const counter = await this._incrementCounter('file');\n const mimetype = FILE.getType(ext) || MIME.OCTET_STREAM;\n let format;\n if (FILE.hasFormat(ext, 'text') || mimetype.indexOf('text') !== -1) {\n format = 'text';\n }\n else if (ext.indexOf('json') !== -1 || ext.indexOf('ipynb') !== -1) {\n format = 'json';\n }\n else {\n format = 'base64';\n }\n name = name || `untitled${counter || ''}${ext}`;\n file = {\n name,\n path: `${dirname}${name}`,\n last_modified: created,\n created,\n format,\n mimetype,\n content: '',\n size: 0,\n writable: true,\n type: 'file',\n };\n break;\n }\n }\n const key = file.path;\n await (await this.storage).setItem(key, file);\n return file;\n }\n /**\n * Copy a file into a given directory.\n *\n * @param path - The original file path.\n * @param toDir - The destination directory path.\n *\n * @returns A promise which resolves with the new contents model when the\n * file is copied.\n *\n * #### Notes\n * The server will select the name of the copied file.\n */\n async copy(path, toDir) {\n let name = PathExt.basename(path);\n toDir = toDir === '' ? '' : `${toDir.slice(1)}/`;\n // TODO: better handle naming collisions with existing files\n while (await this.get(`${toDir}${name}`, { content: true })) {\n const ext = PathExt.extname(name);\n const base = name.replace(ext, '');\n name = `${base} (copy)${ext}`;\n }\n const toPath = `${toDir}${name}`;\n let item = await this.get(path, { content: true });\n if (!item) {\n throw Error(`Could not find file with path ${path}`);\n }\n item = {\n ...item,\n name,\n path: toPath,\n };\n await (await this.storage).setItem(toPath, item);\n return item;\n }\n /**\n * Get a file or directory.\n *\n * @param path: The path to the file.\n * @param options: The options used to fetch the file.\n *\n * @returns A promise which resolves with the file content.\n */\n async get(path, options) {\n // remove leading slash\n path = decodeURIComponent(path.replace(/^\\//, ''));\n if (path === '') {\n return await this._getFolder(path);\n }\n const storage = await this.storage;\n const item = await storage.getItem(path);\n const serverItem = await this._getServerContents(path, options);\n const model = (item || serverItem);\n if (!model) {\n return null;\n }\n if (!(options === null || options === void 0 ? void 0 : options.content)) {\n return {\n size: 0,\n ...model,\n content: null,\n };\n }\n // for directories, find all files with the path as the prefix\n if (model.type === 'directory') {\n const contentMap = new Map();\n await storage.iterate((file, key) => {\n // use an additional slash to not include the directory itself\n if (key === `${path}/${file.name}`) {\n contentMap.set(file.name, file);\n }\n });\n const serverContents = serverItem\n ? serverItem.content\n : Array.from((await this._getServerDirectory(path)).values());\n for (const file of serverContents) {\n if (!contentMap.has(file.name)) {\n contentMap.set(file.name, file);\n }\n }\n const content = [...contentMap.values()];\n return {\n name: PathExt.basename(path),\n path,\n last_modified: model.last_modified,\n created: model.created,\n format: 'json',\n mimetype: MIME.JSON,\n content,\n size: 0,\n writable: true,\n type: 'directory',\n };\n }\n return model;\n }\n /**\n * Rename a file or directory.\n *\n * @param oldLocalPath - The original file path.\n * @param newLocalPath - The new file path.\n *\n * @returns A promise which resolves with the new file content model when the file is renamed.\n */\n async rename(oldLocalPath, newLocalPath) {\n const path = decodeURIComponent(oldLocalPath);\n const file = await this.get(path, { content: true });\n if (!file) {\n throw Error(`Could not find file with path ${path}`);\n }\n const modified = new Date().toISOString();\n const name = PathExt.basename(newLocalPath);\n const newFile = {\n ...file,\n name,\n path: newLocalPath,\n last_modified: modified,\n };\n const storage = await this.storage;\n await storage.setItem(newLocalPath, newFile);\n // remove the old file\n await storage.removeItem(path);\n // remove the corresponding checkpoint\n await (await this.checkpoints).removeItem(path);\n // if a directory, recurse through all children\n if (file.type === 'directory') {\n let child;\n for (child of file.content) {\n await this.rename(URLExt.join(oldLocalPath, child.name), URLExt.join(newLocalPath, child.name));\n }\n }\n return newFile;\n }\n /**\n * Save a file.\n *\n * @param path - The desired file path.\n * @param options - Optional overrides to the model.\n *\n * @returns A promise which resolves with the file content model when the file is saved.\n */\n async save(path, options = {}) {\n var _a;\n path = decodeURIComponent(path);\n // process the file if coming from an upload\n const ext = PathExt.extname((_a = options.name) !== null && _a !== void 0 ? _a : '');\n const chunk = options.chunk;\n // retrieve the content if it is a later chunk or the last one\n // the new content will then be appended to the existing one\n const chunked = chunk ? chunk > 1 || chunk === -1 : false;\n let item = await this.get(path, { content: chunked });\n if (!item) {\n item = await this.newUntitled({ path, ext, type: 'file' });\n }\n if (!item) {\n return null;\n }\n // keep a reference to the original content\n const originalContent = item.content;\n const modified = new Date().toISOString();\n // override with the new values\n item = {\n ...item,\n ...options,\n last_modified: modified,\n };\n if (options.content && options.format === 'base64') {\n const lastChunk = chunk ? chunk === -1 : true;\n if (ext === '.ipynb') {\n const content = this._handleChunk(options.content, originalContent, chunked);\n item = {\n ...item,\n content: lastChunk ? JSON.parse(content) : content,\n format: 'json',\n type: 'notebook',\n size: content.length,\n };\n }\n else if (FILE.hasFormat(ext, 'json')) {\n const content = this._handleChunk(options.content, originalContent, chunked);\n item = {\n ...item,\n content: lastChunk ? JSON.parse(content) : content,\n format: 'json',\n type: 'file',\n size: content.length,\n };\n }\n else if (FILE.hasFormat(ext, 'text')) {\n const content = this._handleChunk(options.content, originalContent, chunked);\n item = {\n ...item,\n content,\n format: 'text',\n type: 'file',\n size: content.length,\n };\n }\n else {\n const content = options.content;\n item = {\n ...item,\n content,\n size: atob(content).length,\n };\n }\n }\n await (await this.storage).setItem(path, item);\n return item;\n }\n /**\n * Delete a file from browser storage.\n *\n * Has no effect on server-backed files, which will re-appear with their\n * original timestamp.\n *\n * @param path - The path to the file.\n */\n async delete(path) {\n path = decodeURIComponent(path);\n const slashed = `${path}/`;\n const toDelete = (await (await this.storage).keys()).filter((key) => key === path || key.startsWith(slashed));\n await Promise.all(toDelete.map(this.forgetPath, this));\n }\n /**\n * Remove the localForage and checkpoints for a path.\n *\n * @param path - The path to the file\n */\n async forgetPath(path) {\n await Promise.all([\n (await this.storage).removeItem(path),\n (await this.checkpoints).removeItem(path),\n ]);\n }\n /**\n * Create a checkpoint for a file.\n *\n * @param path - The path of the file.\n *\n * @returns A promise which resolves with the new checkpoint model when the\n * checkpoint is created.\n */\n async createCheckpoint(path) {\n var _a;\n const checkpoints = await this.checkpoints;\n path = decodeURIComponent(path);\n const item = await this.get(path, { content: true });\n if (!item) {\n throw Error(`Could not find file with path ${path}`);\n }\n const copies = ((_a = (await checkpoints.getItem(path))) !== null && _a !== void 0 ? _a : []).filter(Boolean);\n copies.push(item);\n // keep only a certain amount of checkpoints per file\n if (copies.length > N_CHECKPOINTS) {\n copies.splice(0, copies.length - N_CHECKPOINTS);\n }\n await checkpoints.setItem(path, copies);\n const id = `${copies.length - 1}`;\n return { id, last_modified: item.last_modified };\n }\n /**\n * List available checkpoints for a file.\n *\n * @param path - The path of the file.\n *\n * @returns A promise which resolves with a list of checkpoint models for\n * the file.\n */\n async listCheckpoints(path) {\n const copies = (await (await this.checkpoints).getItem(path)) || [];\n return copies.filter(Boolean).map(this.normalizeCheckpoint, this);\n }\n normalizeCheckpoint(model, id) {\n return { id: id.toString(), last_modified: model.last_modified };\n }\n /**\n * Restore a file to a known checkpoint state.\n *\n * @param path - The path of the file.\n * @param checkpointID - The id of the checkpoint to restore.\n *\n * @returns A promise which resolves when the checkpoint is restored.\n */\n async restoreCheckpoint(path, checkpointID) {\n path = decodeURIComponent(path);\n const copies = ((await (await this.checkpoints).getItem(path)) || []);\n const id = parseInt(checkpointID);\n const item = copies[id];\n await (await this.storage).setItem(path, item);\n }\n /**\n * Delete a checkpoint for a file.\n *\n * @param path - The path of the file.\n * @param checkpointID - The id of the checkpoint to delete.\n *\n * @returns A promise which resolves when the checkpoint is deleted.\n */\n async deleteCheckpoint(path, checkpointID) {\n path = decodeURIComponent(path);\n const copies = ((await (await this.checkpoints).getItem(path)) || []);\n const id = parseInt(checkpointID);\n copies.splice(id, 1);\n await (await this.checkpoints).setItem(path, copies);\n }\n /**\n * Handle a chunk of a file.\n * Decode and unescape a base64-encoded string.\n * @param content the content to process\n *\n * @returns the decoded string, appended to the original content if chunked\n * /\n */\n _handleChunk(newContent, originalContent, chunked) {\n const escaped = decodeURIComponent(escape(atob(newContent)));\n const content = chunked ? originalContent + escaped : escaped;\n return content;\n }\n /**\n * retrieve the contents for this path from the union of local storage and\n * `api/contents/{path}/all.json`.\n *\n * @param path - The contents path to retrieve\n *\n * @returns A promise which resolves with a Map of contents, keyed by local file name\n */\n async _getFolder(path) {\n const content = new Map();\n const storage = await this.storage;\n await storage.iterate((file, key) => {\n if (key.includes('/')) {\n return;\n }\n content.set(file.path, file);\n });\n // layer in contents that don't have local overwrites\n for (const file of (await this._getServerDirectory(path)).values()) {\n if (!content.has(file.path)) {\n content.set(file.path, file);\n }\n }\n if (path && content.size === 0) {\n return null;\n }\n return {\n name: '',\n path,\n last_modified: new Date(0).toISOString(),\n created: new Date(0).toISOString(),\n format: 'json',\n mimetype: MIME.JSON,\n content: Array.from(content.values()),\n size: 0,\n writable: true,\n type: 'directory',\n };\n }\n /**\n * Attempt to recover the model from `{:path}/__all__.json` file, fall back to\n * deriving the model (including content) off the file in `/files/`. Otherwise\n * return `null`.\n */\n async _getServerContents(path, options) {\n const name = PathExt.basename(path);\n const parentContents = await this._getServerDirectory(URLExt.join(path, '..'));\n let model = parentContents.get(name);\n if (!model) {\n return null;\n }\n model = model || {\n name,\n path,\n last_modified: new Date(0).toISOString(),\n created: new Date(0).toISOString(),\n format: 'text',\n mimetype: MIME.PLAIN_TEXT,\n type: 'file',\n writable: true,\n size: 0,\n content: '',\n };\n if (options === null || options === void 0 ? void 0 : options.content) {\n if (model.type === 'directory') {\n const serverContents = await this._getServerDirectory(path);\n model = { ...model, content: Array.from(serverContents.values()) };\n }\n else {\n const fileUrl = URLExt.join(PageConfig.getBaseUrl(), 'files', path);\n const response = await fetch(fileUrl);\n if (!response.ok) {\n return null;\n }\n const mimetype = model.mimetype || response.headers.get('Content-Type');\n const ext = PathExt.extname(name);\n if (model.type === 'notebook' ||\n FILE.hasFormat(ext, 'json') ||\n (mimetype === null || mimetype === void 0 ? void 0 : mimetype.indexOf('json')) !== -1 ||\n path.match(/\\.(ipynb|[^/]*json[^/]*)$/)) {\n const contentText = await response.text();\n model = {\n ...model,\n content: JSON.parse(contentText),\n format: 'json',\n mimetype: model.mimetype || MIME.JSON,\n size: contentText.length,\n };\n }\n else if (FILE.hasFormat(ext, 'text') || mimetype.indexOf('text') !== -1) {\n const contentText = await response.text();\n model = {\n ...model,\n content: contentText,\n format: 'text',\n mimetype: mimetype || MIME.PLAIN_TEXT,\n size: contentText.length,\n };\n }\n else {\n const contentBytes = await response.arrayBuffer();\n const contentBuffer = new Uint8Array(contentBytes);\n model = {\n ...model,\n content: btoa(contentBuffer.reduce(this.reduceBytesToString, '')),\n format: 'base64',\n mimetype: mimetype || MIME.OCTET_STREAM,\n size: contentBuffer.length,\n };\n }\n }\n }\n return model;\n }\n /**\n * retrieve the contents for this path from `__index__.json` in the appropriate\n * folder.\n *\n * @param newLocalPath - The new file path.\n *\n * @returns A promise which resolves with a Map of contents, keyed by local file name\n */\n async _getServerDirectory(path) {\n const content = this._serverContents.get(path) || new Map();\n if (!this._serverContents.has(path)) {\n const apiURL = URLExt.join(PageConfig.getBaseUrl(), 'api/contents', path, 'all.json');\n try {\n const response = await fetch(apiURL);\n const json = JSON.parse(await response.text());\n for (const file of json['content']) {\n content.set(file.name, file);\n }\n }\n catch (err) {\n console.warn(`don't worry, about ${err}... nothing's broken. If there had been a\n file at ${apiURL}, you might see some more files.`);\n }\n this._serverContents.set(path, content);\n }\n return content;\n }\n /**\n * Increment the counter for a given file type.\n * Used to avoid collisions when creating new untitled files.\n *\n * @param type The file type to increment the counter for.\n */\n async _incrementCounter(type) {\n var _a;\n const counters = await this.counters;\n const current = (_a = (await counters.getItem(type))) !== null && _a !== void 0 ? _a : -1;\n const counter = current + 1;\n await counters.setItem(type, counter);\n return counter;\n }\n}\n/**\n * A namespace for private data.\n */\nvar Private;\n(function (Private) {\n /**\n * The content for an empty notebook.\n */\n Private.EMPTY_NB = {\n metadata: {\n orig_nbformat: 4,\n },\n nbformat_minor: 4,\n nbformat: 4,\n cells: [],\n };\n})(Private || (Private = {}));\n//# sourceMappingURL=contents.js.map","// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/// \nexport const DIR_MODE = 16895; // 040777\nexport const FILE_MODE = 33206; // 100666\nexport const SEEK_CUR = 1;\nexport const SEEK_END = 2;\n//# sourceMappingURL=emscripten.js.map","// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n// Types and implementation inspired from https://github.com/jvilk/BrowserFS\n// LICENSE: https://github.com/jvilk/BrowserFS/blob/8977a704ea469d05daf857e4818bef1f4f498326/LICENSE\n// And from https://github.com/gzuidhof/starboard-notebook\n// LICENSE: https://github.com/gzuidhof/starboard-notebook/blob/cd8d3fc30af4bd29cdd8f6b8c207df8138f5d5dd/LICENSE\nimport { DIR_MODE, SEEK_CUR, SEEK_END, } from './emscripten';\nexport const DRIVE_SEPARATOR = ':';\nexport const DRIVE_API_PATH = '/api/drive.v1';\nexport const BLOCK_SIZE = 4096;\nconst encoder = new TextEncoder();\nconst decoder = new TextDecoder('utf-8');\n// Mapping flag -> do we need to overwrite the file upon closing it\nconst flagNeedsWrite = {\n 0 /*O_RDONLY*/: false,\n 1 /*O_WRONLY*/: true,\n 2 /*O_RDWR*/: true,\n 64 /*O_CREAT*/: true,\n 65 /*O_WRONLY|O_CREAT*/: true,\n 66 /*O_RDWR|O_CREAT*/: true,\n 129 /*O_WRONLY|O_EXCL*/: true,\n 193 /*O_WRONLY|O_CREAT|O_EXCL*/: true,\n 514 /*O_RDWR|O_TRUNC*/: true,\n 577 /*O_WRONLY|O_CREAT|O_TRUNC*/: true,\n 578 /*O_CREAT|O_RDWR|O_TRUNC*/: true,\n 705 /*O_WRONLY|O_CREAT|O_EXCL|O_TRUNC*/: true,\n 706 /*O_RDWR|O_CREAT|O_EXCL|O_TRUNC*/: true,\n 1024 /*O_APPEND*/: true,\n 1025 /*O_WRONLY|O_APPEND*/: true,\n 1026 /*O_RDWR|O_APPEND*/: true,\n 1089 /*O_WRONLY|O_CREAT|O_APPEND*/: true,\n 1090 /*O_RDWR|O_CREAT|O_APPEND*/: true,\n 1153 /*O_WRONLY|O_EXCL|O_APPEND*/: true,\n 1154 /*O_RDWR|O_EXCL|O_APPEND*/: true,\n 1217 /*O_WRONLY|O_CREAT|O_EXCL|O_APPEND*/: true,\n 1218 /*O_RDWR|O_CREAT|O_EXCL|O_APPEND*/: true,\n 4096 /*O_RDONLY|O_DSYNC*/: true,\n 4098 /*O_RDWR|O_DSYNC*/: true,\n};\nexport class DriveFSEmscriptenStreamOps {\n constructor(fs) {\n this.fs = fs;\n }\n open(stream) {\n const path = this.fs.realPath(stream.node);\n if (this.fs.FS.isFile(stream.node.mode)) {\n stream.file = this.fs.API.get(path);\n }\n }\n close(stream) {\n if (!this.fs.FS.isFile(stream.node.mode) || !stream.file) {\n return;\n }\n const path = this.fs.realPath(stream.node);\n const flags = stream.flags;\n let parsedFlags = typeof flags === 'string' ? parseInt(flags, 10) : flags;\n parsedFlags &= 0x1fff;\n let needsWrite = true;\n if (parsedFlags in flagNeedsWrite) {\n needsWrite = flagNeedsWrite[parsedFlags];\n }\n if (needsWrite) {\n this.fs.API.put(path, stream.file);\n }\n stream.file = undefined;\n }\n read(stream, buffer, offset, length, position) {\n if (length <= 0 ||\n stream.file === undefined ||\n position >= (stream.file.data.length || 0)) {\n return 0;\n }\n const size = Math.min(stream.file.data.length - position, length);\n buffer.set(stream.file.data.subarray(position, position + size), offset);\n return size;\n }\n write(stream, buffer, offset, length, position) {\n var _a;\n if (length <= 0 || stream.file === undefined) {\n return 0;\n }\n stream.node.timestamp = Date.now();\n if (position + length > (((_a = stream.file) === null || _a === void 0 ? void 0 : _a.data.length) || 0)) {\n const oldData = stream.file.data ? stream.file.data : new Uint8Array();\n stream.file.data = new Uint8Array(position + length);\n stream.file.data.set(oldData);\n }\n stream.file.data.set(buffer.subarray(offset, offset + length), position);\n return length;\n }\n llseek(stream, offset, whence) {\n let position = offset;\n if (whence === SEEK_CUR) {\n position += stream.position;\n }\n else if (whence === SEEK_END) {\n if (this.fs.FS.isFile(stream.node.mode)) {\n if (stream.file !== undefined) {\n position += stream.file.data.length;\n }\n else {\n throw new this.fs.FS.ErrnoError(this.fs.ERRNO_CODES.EPERM);\n }\n }\n }\n if (position < 0) {\n throw new this.fs.FS.ErrnoError(this.fs.ERRNO_CODES.EINVAL);\n }\n return position;\n }\n}\nexport class DriveFSEmscriptenNodeOps {\n constructor(fs) {\n this.fs = fs;\n }\n getattr(node) {\n return {\n ...this.fs.API.getattr(this.fs.realPath(node)),\n mode: node.mode,\n ino: node.id,\n };\n }\n setattr(node, attr) {\n for (const [key, value] of Object.entries(attr)) {\n switch (key) {\n case 'mode':\n node.mode = value;\n break;\n case 'timestamp':\n node.timestamp = value;\n break;\n default:\n console.warn('setattr', key, 'of', value, 'on', node, 'not yet implemented');\n break;\n }\n }\n }\n lookup(parent, name) {\n const path = this.fs.PATH.join2(this.fs.realPath(parent), name);\n const result = this.fs.API.lookup(path);\n if (!result.ok) {\n throw this.fs.FS.genericErrors[this.fs.ERRNO_CODES['ENOENT']];\n }\n return this.fs.createNode(parent, name, result.mode, 0);\n }\n mknod(parent, name, mode, dev) {\n const path = this.fs.PATH.join2(this.fs.realPath(parent), name);\n this.fs.API.mknod(path, mode);\n return this.fs.createNode(parent, name, mode, dev);\n }\n rename(oldNode, newDir, newName) {\n this.fs.API.rename(oldNode.parent\n ? this.fs.PATH.join2(this.fs.realPath(oldNode.parent), oldNode.name)\n : oldNode.name, this.fs.PATH.join2(this.fs.realPath(newDir), newName));\n // Updating the in-memory node\n oldNode.name = newName;\n oldNode.parent = newDir;\n }\n unlink(parent, name) {\n this.fs.API.rmdir(this.fs.PATH.join2(this.fs.realPath(parent), name));\n }\n rmdir(parent, name) {\n this.fs.API.rmdir(this.fs.PATH.join2(this.fs.realPath(parent), name));\n }\n readdir(node) {\n return this.fs.API.readdir(this.fs.realPath(node));\n }\n symlink(parent, newName, oldPath) {\n throw new this.fs.FS.ErrnoError(this.fs.ERRNO_CODES['EPERM']);\n }\n readlink(node) {\n throw new this.fs.FS.ErrnoError(this.fs.ERRNO_CODES['EPERM']);\n }\n}\n/**\n * Wrap ServiceWorker requests for an Emscripten-compatible synchronous API.\n */\nexport class ContentsAPI {\n constructor(baseUrl, driveName, mountpoint, FS, ERRNO_CODES) {\n this._baseUrl = baseUrl;\n this._driveName = driveName;\n this._mountpoint = mountpoint;\n this.FS = FS;\n this.ERRNO_CODES = ERRNO_CODES;\n }\n request(data) {\n const xhr = new XMLHttpRequest();\n xhr.open('POST', encodeURI(this.endpoint), false);\n try {\n xhr.send(JSON.stringify(data));\n }\n catch (e) {\n console.error(e);\n }\n if (xhr.status >= 400) {\n throw new this.FS.ErrnoError(this.ERRNO_CODES['EINVAL']);\n }\n return JSON.parse(xhr.responseText);\n }\n lookup(path) {\n return this.request({ method: 'lookup', path: this.normalizePath(path) });\n }\n getmode(path) {\n return Number.parseInt(this.request({ method: 'getmode', path: this.normalizePath(path) }));\n }\n mknod(path, mode) {\n return this.request({\n method: 'mknod',\n path: this.normalizePath(path),\n data: { mode },\n });\n }\n rename(oldPath, newPath) {\n return this.request({\n method: 'rename',\n path: this.normalizePath(oldPath),\n data: { newPath: this.normalizePath(newPath) },\n });\n }\n readdir(path) {\n const dirlist = this.request({\n method: 'readdir',\n path: this.normalizePath(path),\n });\n dirlist.push('.');\n dirlist.push('..');\n return dirlist;\n }\n rmdir(path) {\n return this.request({ method: 'rmdir', path: this.normalizePath(path) });\n }\n get(path) {\n const response = this.request({ method: 'get', path: this.normalizePath(path) });\n const serializedContent = response.content;\n const format = response.format;\n switch (format) {\n case 'json':\n case 'text':\n return {\n data: encoder.encode(serializedContent),\n format,\n };\n case 'base64': {\n const binString = atob(serializedContent);\n const len = binString.length;\n const data = new Uint8Array(len);\n for (let i = 0; i < len; i++) {\n data[i] = binString.charCodeAt(i);\n }\n return {\n data,\n format,\n };\n }\n default:\n throw new this.FS.ErrnoError(this.ERRNO_CODES['ENOENT']);\n }\n }\n put(path, value) {\n switch (value.format) {\n case 'json':\n case 'text':\n return this.request({\n method: 'put',\n path: this.normalizePath(path),\n data: {\n format: value.format,\n data: decoder.decode(value.data),\n },\n });\n case 'base64': {\n let binary = '';\n for (let i = 0; i < value.data.byteLength; i++) {\n binary += String.fromCharCode(value.data[i]);\n }\n return this.request({\n method: 'put',\n path: this.normalizePath(path),\n data: {\n format: value.format,\n data: btoa(binary),\n },\n });\n }\n }\n }\n getattr(path) {\n const stats = this.request({\n method: 'getattr',\n path: this.normalizePath(path),\n });\n // Turn datetimes into proper objects\n stats.atime = new Date(stats.atime);\n stats.mtime = new Date(stats.mtime);\n stats.ctime = new Date(stats.ctime);\n // ensure a non-undefined size (0 isn't great, though)\n stats.size = stats.size || 0;\n return stats;\n }\n /**\n * Normalize a Path by making it compliant for the content manager\n *\n * @param path: the path relatively to the Emscripten drive\n */\n normalizePath(path) {\n // Remove mountpoint prefix\n if (path.startsWith(this._mountpoint)) {\n path = path.slice(this._mountpoint.length);\n }\n // Add JupyterLab drive name\n if (this._driveName) {\n path = `${this._driveName}${DRIVE_SEPARATOR}${path}`;\n }\n return path;\n }\n /**\n * Get the api/drive endpoint\n */\n get endpoint() {\n return `${this._baseUrl}api/drive`;\n }\n}\nexport class DriveFS {\n constructor(options) {\n this.FS = options.FS;\n this.PATH = options.PATH;\n this.ERRNO_CODES = options.ERRNO_CODES;\n this.API = new ContentsAPI(options.baseUrl, options.driveName, options.mountpoint, this.FS, this.ERRNO_CODES);\n this.driveName = options.driveName;\n this.node_ops = new DriveFSEmscriptenNodeOps(this);\n this.stream_ops = new DriveFSEmscriptenStreamOps(this);\n }\n mount(mount) {\n return this.createNode(null, mount.mountpoint, DIR_MODE | 511, 0);\n }\n createNode(parent, name, mode, dev) {\n const FS = this.FS;\n if (!FS.isDir(mode) && !FS.isFile(mode)) {\n throw new FS.ErrnoError(this.ERRNO_CODES['EINVAL']);\n }\n const node = FS.createNode(parent, name, mode, dev);\n node.node_ops = this.node_ops;\n node.stream_ops = this.stream_ops;\n return node;\n }\n getMode(path) {\n return this.API.getmode(path);\n }\n realPath(node) {\n const parts = [];\n let currentNode = node;\n parts.push(currentNode.name);\n while (currentNode.parent !== currentNode) {\n currentNode = currentNode.parent;\n parts.push(currentNode.name);\n }\n parts.reverse();\n return this.PATH.join.apply(null, parts);\n }\n}\n//# sourceMappingURL=drivefs.js.map","// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\nimport { PathExt } from '@jupyterlab/coreutils';\nimport { DIR_MODE, FILE_MODE } from './emscripten';\nimport { BLOCK_SIZE, DRIVE_API_PATH } from './drivefs';\n/** A broadcaster for the ServiceWorker */\nexport class BroadcastChannelWrapper {\n constructor(options) {\n this.isDisposed = false;\n /** Handle a message received on the BroadcastChannel */\n this._onMessage = async (event) => {\n if (!this._channel) {\n return;\n }\n const { _contents } = this;\n const request = event.data;\n const path = request === null || request === void 0 ? void 0 : request.path;\n const receiver = request === null || request === void 0 ? void 0 : request.receiver;\n if (receiver !== 'broadcast.ts') {\n // Message is not meant for us\n return;\n }\n // many successful responses default to null\n let response = null;\n // most requests will use a model\n let model;\n switch (request === null || request === void 0 ? void 0 : request.method) {\n case 'readdir':\n model = await _contents.get(path, { content: true });\n response = [];\n if (model.type === 'directory' && model.content) {\n response = model.content.map((subcontent) => subcontent.name);\n }\n break;\n case 'rmdir':\n await _contents.delete(path);\n break;\n case 'rename':\n await _contents.rename(path, request.data.newPath);\n break;\n case 'getmode':\n model = await _contents.get(path);\n if (model.type === 'directory') {\n response = DIR_MODE;\n }\n else {\n response = FILE_MODE;\n }\n break;\n case 'lookup':\n try {\n model = await _contents.get(path);\n response = {\n ok: true,\n mode: model.type === 'directory' ? DIR_MODE : FILE_MODE,\n };\n }\n catch (e) {\n response = { ok: false };\n }\n break;\n case 'mknod':\n model = await _contents.newUntitled({\n path: PathExt.dirname(path),\n type: Number.parseInt(request.data.mode) === DIR_MODE ? 'directory' : 'file',\n ext: PathExt.extname(path),\n });\n await _contents.rename(model.path, path);\n break;\n case 'getattr': {\n model = await _contents.get(path);\n // create a default date for drives that send incomplete information\n // for nested foldes and files\n const defaultDate = new Date(0).toISOString();\n response = {\n dev: 1,\n nlink: 1,\n uid: 0,\n gid: 0,\n rdev: 0,\n size: model.size || 0,\n blksize: BLOCK_SIZE,\n blocks: Math.ceil(model.size || 0 / BLOCK_SIZE),\n atime: model.last_modified || defaultDate,\n mtime: model.last_modified || defaultDate,\n ctime: model.created || defaultDate,\n timestamp: 0,\n };\n break;\n }\n case 'get':\n model = await _contents.get(path, { content: true });\n if (model.type === 'directory') {\n break;\n }\n response = {\n content: model.format === 'json' ? JSON.stringify(model.content) : model.content,\n format: model.format,\n };\n break;\n case 'put':\n await _contents.save(path, {\n content: request.data.format === 'json'\n ? JSON.parse(request.data.data)\n : request.data.data,\n type: 'file',\n format: request.data.format,\n });\n break;\n default:\n response = null;\n break;\n }\n this._channel.postMessage(response);\n };\n this._channel = null;\n this._enabled = false;\n this._contents = options.contents;\n }\n get enabled() {\n return this._enabled;\n }\n enable() {\n if (this._channel) {\n console.warn('BroadcastChannel already created and enabled');\n return;\n }\n this._channel = new BroadcastChannel(DRIVE_API_PATH);\n this._channel.addEventListener('message', this._onMessage);\n this._enabled = true;\n }\n disable() {\n if (this._channel) {\n this._channel.removeEventListener('message', this._onMessage);\n this._channel = null;\n }\n this._enabled = false;\n }\n /** Clean up the broadcaster. */\n dispose() {\n if (this.isDisposed) {\n return;\n }\n this.disable();\n this.isDisposed = true;\n }\n}\n//# sourceMappingURL=broadcast.js.map","// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\nimport { Signal } from '@lumino/signaling';\n/**\n * A concrete implementation of IObservableMap.\n */\nexport class ObservableMap {\n /**\n * Construct a new observable map.\n */\n constructor(options = {}) {\n this._map = new Map();\n this._changed = new Signal(this);\n this._isDisposed = false;\n this._itemCmp = options.itemCmp || Private.itemCmp;\n if (options.values) {\n for (const key in options.values) {\n this._map.set(key, options.values[key]);\n }\n }\n }\n /**\n * The type of the Observable.\n */\n get type() {\n return 'Map';\n }\n /**\n * A signal emitted when the map has changed.\n */\n get changed() {\n return this._changed;\n }\n /**\n * Whether this map has been disposed.\n */\n get isDisposed() {\n return this._isDisposed;\n }\n /**\n * The number of key-value pairs in the map.\n */\n get size() {\n return this._map.size;\n }\n /**\n * Set a key-value pair in the map\n *\n * @param key - The key to set.\n *\n * @param value - The value for the key.\n *\n * @returns the old value for the key, or undefined\n * if that did not exist.\n *\n * @throws if the new value is undefined.\n *\n * #### Notes\n * This is a no-op if the value does not change.\n */\n set(key, value) {\n const oldVal = this._map.get(key);\n if (value === undefined) {\n throw Error('Cannot set an undefined value, use remove');\n }\n // Bail if the value does not change.\n const itemCmp = this._itemCmp;\n if (oldVal !== undefined && itemCmp(oldVal, value)) {\n return oldVal;\n }\n this._map.set(key, value);\n this._changed.emit({\n type: oldVal ? 'change' : 'add',\n key: key,\n oldValue: oldVal,\n newValue: value\n });\n return oldVal;\n }\n /**\n * Get a value for a given key.\n *\n * @param key - the key.\n *\n * @returns the value for that key.\n */\n get(key) {\n return this._map.get(key);\n }\n /**\n * Check whether the map has a key.\n *\n * @param key - the key to check.\n *\n * @returns `true` if the map has the key, `false` otherwise.\n */\n has(key) {\n return this._map.has(key);\n }\n /**\n * Get a list of the keys in the map.\n *\n * @returns - a list of keys.\n */\n keys() {\n const keyList = [];\n this._map.forEach((v, k) => {\n keyList.push(k);\n });\n return keyList;\n }\n /**\n * Get a list of the values in the map.\n *\n * @returns - a list of values.\n */\n values() {\n const valList = [];\n this._map.forEach((v, k) => {\n valList.push(v);\n });\n return valList;\n }\n /**\n * Remove a key from the map\n *\n * @param key - the key to remove.\n *\n * @returns the value of the given key,\n * or undefined if that does not exist.\n *\n * #### Notes\n * This is a no-op if the value does not change.\n */\n delete(key) {\n const oldVal = this._map.get(key);\n const removed = this._map.delete(key);\n if (removed) {\n this._changed.emit({\n type: 'remove',\n key: key,\n oldValue: oldVal,\n newValue: undefined\n });\n }\n return oldVal;\n }\n /**\n * Set the ObservableMap to an empty map.\n */\n clear() {\n // Delete one by one to emit the correct signals.\n const keyList = this.keys();\n for (let i = 0; i < keyList.length; i++) {\n this.delete(keyList[i]);\n }\n }\n /**\n * Dispose of the resources held by the map.\n */\n dispose() {\n if (this.isDisposed) {\n return;\n }\n this._isDisposed = true;\n Signal.clearData(this);\n this._map.clear();\n }\n}\n/**\n * The namespace for module private data.\n */\nvar Private;\n(function (Private) {\n /**\n * The default strict equality item comparator.\n */\n function itemCmp(first, second) {\n return first === second;\n }\n Private.itemCmp = itemCmp;\n})(Private || (Private = {}));\n//# sourceMappingURL=observablemap.js.map","const E_TIMEOUT = new Error('timeout while waiting for mutex to become available');\nconst E_ALREADY_LOCKED = new Error('mutex already locked');\nconst E_CANCELED = new Error('request for lock canceled');\n\nvar __awaiter$2 = (undefined && undefined.__awaiter) || function (thisArg, _arguments, P, generator) {\n function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }\n return new (P || (P = Promise))(function (resolve, reject) {\n function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }\n function rejected(value) { try { step(generator[\"throw\"](value)); } catch (e) { reject(e); } }\n function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }\n step((generator = generator.apply(thisArg, _arguments || [])).next());\n });\n};\nclass Semaphore {\n constructor(_maxConcurrency, _cancelError = E_CANCELED) {\n this._maxConcurrency = _maxConcurrency;\n this._cancelError = _cancelError;\n this._queue = [];\n this._waiters = [];\n if (_maxConcurrency <= 0) {\n throw new Error('semaphore must be initialized to a positive value');\n }\n this._value = _maxConcurrency;\n }\n acquire() {\n const locked = this.isLocked();\n const ticketPromise = new Promise((resolve, reject) => this._queue.push({ resolve, reject }));\n if (!locked)\n this._dispatch();\n return ticketPromise;\n }\n runExclusive(callback) {\n return __awaiter$2(this, void 0, void 0, function* () {\n const [value, release] = yield this.acquire();\n try {\n return yield callback(value);\n }\n finally {\n release();\n }\n });\n }\n waitForUnlock() {\n return __awaiter$2(this, void 0, void 0, function* () {\n if (!this.isLocked()) {\n return Promise.resolve();\n }\n const waitPromise = new Promise((resolve) => this._waiters.push({ resolve }));\n return waitPromise;\n });\n }\n isLocked() {\n return this._value <= 0;\n }\n /** @deprecated Deprecated in 0.3.0, will be removed in 0.4.0. Use runExclusive instead. */\n release() {\n if (this._maxConcurrency > 1) {\n throw new Error('this method is unavailable on semaphores with concurrency > 1; use the scoped release returned by acquire instead');\n }\n if (this._currentReleaser) {\n const releaser = this._currentReleaser;\n this._currentReleaser = undefined;\n releaser();\n }\n }\n cancel() {\n this._queue.forEach((ticket) => ticket.reject(this._cancelError));\n this._queue = [];\n }\n _dispatch() {\n const nextTicket = this._queue.shift();\n if (!nextTicket)\n return;\n let released = false;\n this._currentReleaser = () => {\n if (released)\n return;\n released = true;\n this._value++;\n this._resolveWaiters();\n this._dispatch();\n };\n nextTicket.resolve([this._value--, this._currentReleaser]);\n }\n _resolveWaiters() {\n this._waiters.forEach((waiter) => waiter.resolve());\n this._waiters = [];\n }\n}\n\nvar __awaiter$1 = (undefined && undefined.__awaiter) || function (thisArg, _arguments, P, generator) {\n function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }\n return new (P || (P = Promise))(function (resolve, reject) {\n function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }\n function rejected(value) { try { step(generator[\"throw\"](value)); } catch (e) { reject(e); } }\n function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }\n step((generator = generator.apply(thisArg, _arguments || [])).next());\n });\n};\nclass Mutex {\n constructor(cancelError) {\n this._semaphore = new Semaphore(1, cancelError);\n }\n acquire() {\n return __awaiter$1(this, void 0, void 0, function* () {\n const [, releaser] = yield this._semaphore.acquire();\n return releaser;\n });\n }\n runExclusive(callback) {\n return this._semaphore.runExclusive(() => callback());\n }\n isLocked() {\n return this._semaphore.isLocked();\n }\n waitForUnlock() {\n return this._semaphore.waitForUnlock();\n }\n /** @deprecated Deprecated in 0.3.0, will be removed in 0.4.0. Use runExclusive instead. */\n release() {\n this._semaphore.release();\n }\n cancel() {\n return this._semaphore.cancel();\n }\n}\n\nvar __awaiter = (undefined && undefined.__awaiter) || function (thisArg, _arguments, P, generator) {\n function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }\n return new (P || (P = Promise))(function (resolve, reject) {\n function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }\n function rejected(value) { try { step(generator[\"throw\"](value)); } catch (e) { reject(e); } }\n function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }\n step((generator = generator.apply(thisArg, _arguments || [])).next());\n });\n};\n// eslint-disable-next-line @typescript-eslint/explicit-module-boundary-types\nfunction withTimeout(sync, timeout, timeoutError = E_TIMEOUT) {\n return {\n acquire: () => new Promise((resolve, reject) => __awaiter(this, void 0, void 0, function* () {\n let isTimeout = false;\n const handle = setTimeout(() => {\n isTimeout = true;\n reject(timeoutError);\n }, timeout);\n try {\n const ticket = yield sync.acquire();\n if (isTimeout) {\n const release = Array.isArray(ticket) ? ticket[1] : ticket;\n release();\n }\n else {\n clearTimeout(handle);\n resolve(ticket);\n }\n }\n catch (e) {\n if (!isTimeout) {\n clearTimeout(handle);\n reject(e);\n }\n }\n })),\n runExclusive(callback) {\n return __awaiter(this, void 0, void 0, function* () {\n let release = () => undefined;\n try {\n const ticket = yield this.acquire();\n if (Array.isArray(ticket)) {\n release = ticket[1];\n return yield callback(ticket[0]);\n }\n else {\n release = ticket;\n return yield callback();\n }\n }\n finally {\n release();\n }\n });\n },\n /** @deprecated Deprecated in 0.3.0, will be removed in 0.4.0. Use runExclusive instead. */\n release() {\n sync.release();\n },\n cancel() {\n return sync.cancel();\n },\n waitForUnlock: () => sync.waitForUnlock(),\n isLocked: () => sync.isLocked(),\n };\n}\n\n// eslint-disable-next-lisne @typescript-eslint/explicit-module-boundary-types\nfunction tryAcquire(sync, alreadyAcquiredError = E_ALREADY_LOCKED) {\n // eslint-disable-next-line @typescript-eslint/no-explicit-any\n return withTimeout(sync, 0, alreadyAcquiredError);\n}\n\nexport { E_ALREADY_LOCKED, E_CANCELED, E_TIMEOUT, Mutex, Semaphore, tryAcquire, withTimeout };\n","import { ObservableMap } from '@jupyterlab/observables';\nimport { deserialize, serialize } from '@jupyterlab/services/lib/kernel/serialize';\nimport { supportedKernelWebSocketProtocols } from '@jupyterlab/services/lib/kernel/messages';\nimport { UUID } from '@lumino/coreutils';\nimport { Server as WebSocketServer } from 'mock-socket';\nimport { Mutex } from 'async-mutex';\nimport { PageConfig } from '@jupyterlab/coreutils';\n/**\n * Use the default kernel wire protocol.\n */\nconst KERNEL_WEBSOCKET_PROTOCOL = supportedKernelWebSocketProtocols.v1KernelWebsocketJupyterOrg;\n/**\n * A class to handle requests to /api/kernels\n */\nexport class Kernels {\n /**\n * Construct a new Kernels\n *\n * @param options The instantiation options\n */\n constructor(options) {\n this._kernels = new ObservableMap();\n this._clients = new ObservableMap();\n this._kernelClients = new ObservableMap();\n const { kernelspecs } = options;\n this._kernelspecs = kernelspecs;\n }\n /**\n * Start a new kernel.\n *\n * @param options The kernel start options.\n */\n async startNew(options) {\n const { id, name, location } = options;\n const factory = this._kernelspecs.factories.get(name);\n // bail if there is no factory associated with the requested kernel\n if (!factory) {\n return { id, name };\n }\n // create a synchronization mechanism to allow only one message\n // to be processed at a time\n const mutex = new Mutex();\n // hook a new client to a kernel\n const hook = (kernelId, clientId, socket) => {\n var _a;\n const kernel = this._kernels.get(kernelId);\n if (!kernel) {\n throw Error(`No kernel ${kernelId}`);\n }\n this._clients.set(clientId, socket);\n (_a = this._kernelClients.get(kernelId)) === null || _a === void 0 ? void 0 : _a.add(clientId);\n const processMsg = async (msg) => {\n await mutex.runExclusive(async () => {\n await kernel.ready;\n await kernel.handleMessage(msg);\n });\n };\n socket.on('message', async (message) => {\n let msg;\n if (message instanceof ArrayBuffer) {\n message = new Uint8Array(message).buffer;\n msg = deserialize(message, KERNEL_WEBSOCKET_PROTOCOL);\n }\n else if (typeof message === 'string') {\n const encoder = new TextEncoder();\n const encodedData = encoder.encode(message);\n msg = deserialize(encodedData.buffer, KERNEL_WEBSOCKET_PROTOCOL);\n }\n else {\n return;\n }\n // TODO Find a better solution for this?\n // input-reply is asynchronous, must not be processed like other messages\n if (msg.header.msg_type === 'input_reply') {\n kernel.handleMessage(msg);\n }\n else {\n void processMsg(msg);\n }\n });\n const removeClient = () => {\n var _a;\n this._clients.delete(clientId);\n (_a = this._kernelClients.get(kernelId)) === null || _a === void 0 ? void 0 : _a.delete(clientId);\n };\n kernel.disposed.connect(removeClient);\n // TODO: check whether this is called\n // https://github.com/thoov/mock-socket/issues/298\n // https://github.com/jupyterlab/jupyterlab/blob/6bc884a7a8ed73c615ce72ba097bdb790482b5bf/packages/services/src/kernel/default.ts#L1245\n socket.onclose = removeClient;\n };\n // ensure kernel id\n const kernelId = id !== null && id !== void 0 ? id : UUID.uuid4();\n // There is one server per kernel which handles multiple clients\n const kernelUrl = `${Kernels.WS_BASE_URL}api/kernels/${kernelId}/channels`;\n const runningKernel = this._kernels.get(kernelId);\n if (runningKernel) {\n return {\n id: runningKernel.id,\n name: runningKernel.name,\n };\n }\n // start the kernel\n const sendMessage = (msg) => {\n const clientId = msg.header.session;\n const socket = this._clients.get(clientId);\n if (!socket) {\n console.warn(`Trying to send message on removed socket for kernel ${kernelId}`);\n return;\n }\n const message = serialize(msg, KERNEL_WEBSOCKET_PROTOCOL);\n // process iopub messages\n if (msg.channel === 'iopub') {\n const clients = this._kernelClients.get(kernelId);\n clients === null || clients === void 0 ? void 0 : clients.forEach((id) => {\n var _a;\n (_a = this._clients.get(id)) === null || _a === void 0 ? void 0 : _a.send(message);\n });\n return;\n }\n socket.send(message);\n };\n const kernel = await factory({\n id: kernelId,\n sendMessage,\n name,\n location,\n });\n this._kernels.set(kernelId, kernel);\n this._kernelClients.set(kernelId, new Set());\n // create the websocket server for the kernel\n const wsServer = new WebSocketServer(kernelUrl, {\n mock: false,\n selectProtocol: () => KERNEL_WEBSOCKET_PROTOCOL,\n });\n wsServer.on('connection', (socket) => {\n var _a;\n const url = new URL(socket.url);\n const clientId = (_a = url.searchParams.get('session_id')) !== null && _a !== void 0 ? _a : '';\n hook(kernelId, clientId, socket);\n });\n // clean up closed connection\n wsServer.on('close', () => {\n this._clients.keys().forEach((clientId) => {\n var _a;\n const socket = this._clients.get(clientId);\n if ((socket === null || socket === void 0 ? void 0 : socket.readyState) === WebSocket.CLOSED) {\n this._clients.delete(clientId);\n (_a = this._kernelClients.get(kernelId)) === null || _a === void 0 ? void 0 : _a.delete(clientId);\n }\n });\n });\n // cleanup on kernel shutdown\n kernel.disposed.connect(() => {\n wsServer.close();\n this._kernels.delete(kernelId);\n this._kernelClients.delete(kernelId);\n });\n return {\n id: kernel.id,\n name: kernel.name,\n };\n }\n /**\n * Restart a kernel.\n *\n * @param kernelId The kernel id.\n */\n async restart(kernelId) {\n const kernel = this._kernels.get(kernelId);\n if (!kernel) {\n throw Error(`Kernel ${kernelId} does not exist`);\n }\n const { id, name, location } = kernel;\n kernel.dispose();\n return this.startNew({ id, name, location });\n }\n /**\n * List the running kernels.\n */\n async list() {\n return [...this._kernels.values()].map((kernel) => ({\n id: kernel.id,\n name: kernel.name,\n }));\n }\n /**\n * Shut down a kernel.\n *\n * @param id The kernel id.\n */\n async shutdown(id) {\n var _a;\n (_a = this._kernels.delete(id)) === null || _a === void 0 ? void 0 : _a.dispose();\n }\n /**\n * Get a kernel by id\n */\n async get(id) {\n return this._kernels.get(id);\n }\n}\n/**\n * A namespace for Kernels statics.\n */\n(function (Kernels) {\n /**\n * The base url for the Kernels manager\n */\n Kernels.WS_BASE_URL = PageConfig.getBaseUrl().replace(/^http/, 'ws');\n})(Kernels || (Kernels = {}));\n//# sourceMappingURL=kernels.js.map","import { PageConfig } from '@jupyterlab/coreutils';\nimport { FALLBACK_KERNEL } from './tokens';\n/**\n * A class to handle requests to /api/kernelspecs\n */\nexport class KernelSpecs {\n constructor() {\n this._specs = new Map();\n this._factories = new Map();\n }\n /**\n * Get the kernel specs.\n */\n get specs() {\n if (this._specs.size === 0) {\n return null;\n }\n return {\n default: this.defaultKernelName,\n kernelspecs: Object.fromEntries(this._specs),\n };\n }\n /**\n * Get the default kernel name.\n */\n get defaultKernelName() {\n let defaultKernelName = PageConfig.getOption('defaultKernelName');\n if (!defaultKernelName && this._specs.size) {\n const keys = Array.from(this._specs.keys());\n keys.sort();\n defaultKernelName = keys[0];\n }\n return defaultKernelName || FALLBACK_KERNEL;\n }\n /**\n * Get the kernel factories for the current kernels.\n */\n get factories() {\n return this._factories;\n }\n /**\n * Register a new kernel.\n *\n * @param options The options to register a new kernel.\n */\n register(options) {\n const { spec, create } = options;\n this._specs.set(spec.name, spec);\n this._factories.set(spec.name, create);\n }\n}\n//# sourceMappingURL=kernelspecs.js.map","// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\nimport { Token } from '@lumino/coreutils';\n/**\n * The well-known name of the file. Can actually be configured by alternate\n * implementations, but the default is probably good enough for \"best-effort.\"\n */\nexport const THIRD_PARTY_LICENSES = 'third-party-licenses.json';\n/**\n * The token for the licenses service.\n */\nexport const ILicenses = new Token('@jupyterlite/licenses:ILicenses');\n//# sourceMappingURL=tokens.js.map","// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\nimport { URLExt, PageConfig } from '@jupyterlab/coreutils';\nimport { THIRD_PARTY_LICENSES, } from './tokens';\n/**\n * An empty bundle.\n */\nconst EMPTY_BUNDLE = Object.freeze({ packages: [] });\n/**\n * A JupyterLite implementation of the jupyterlab_server licenses route\n */\nexport class Licenses {\n /**\n * A GET handler for the licenses\n */\n async get() {\n return {\n bundles: {\n ...(await this._getFederated()),\n [this.appName]: await this._getAppLicenses(),\n },\n };\n }\n /**\n * Get the app name (or default).\n */\n get appName() {\n return PageConfig.getOption('appName') || 'JupyterLite';\n }\n /**\n * Get the well-known URL of the app licenses.\n */\n get appLicensesUrl() {\n return URLExt.join(PageConfig.getBaseUrl(), 'build', THIRD_PARTY_LICENSES);\n }\n /**\n * Get the lab extension base url.\n */\n get labExtensionsUrl() {\n return PageConfig.getOption('fullLabextensionsUrl');\n }\n /**\n * Resolve the licenses for the app distribution itself, or the empty bundle.\n */\n async _getAppLicenses() {\n let bundle = EMPTY_BUNDLE;\n try {\n const response = await fetch(this.appLicensesUrl);\n bundle = response.json();\n }\n catch (err) {\n console.warn('Could not resolve licenses for', this.appName);\n }\n return bundle;\n }\n /**\n * Resolve the licenses for all federated extensions.\n */\n async _getFederated() {\n const bundles = {};\n let federated;\n try {\n federated = JSON.parse(PageConfig.getOption('federated_extensions'));\n }\n catch {\n return bundles;\n }\n const promises = [];\n for (const ext of federated) {\n promises.push(this._getOneFederated(ext, bundles));\n }\n try {\n await Promise.all(promises);\n }\n catch (err) {\n console.warn('Error resolving licenses', err);\n }\n return bundles;\n }\n /**\n * Update the bundles with the extension's licenses, or the empty bundle.\n */\n async _getOneFederated(ext, bundles) {\n try {\n const url = URLExt.join(this.labExtensionsUrl, ext.name, 'static', THIRD_PARTY_LICENSES);\n const response = await fetch(url);\n bundles[ext.name] = await response.json();\n }\n catch {\n console.warn('Could not resolve licenses for', ext);\n bundles[ext.name] = EMPTY_BUNDLE;\n }\n }\n}\n//# sourceMappingURL=licenses.js.map","import { Token } from '@lumino/coreutils';\n/**\n * The token for the sessions service.\n */\nexport const ISessions = new Token('@jupyterlite/session:ISessions');\n//# sourceMappingURL=tokens.js.map","import { PathExt } from '@jupyterlab/coreutils';\nimport { ArrayExt } from '@lumino/algorithm';\nimport { UUID } from '@lumino/coreutils';\n/**\n * A class to handle requests to /api/sessions\n */\nexport class Sessions {\n /**\n * Construct a new Sessions.\n *\n * @param options The instantiation options for a Sessions.\n */\n constructor(options) {\n // TODO: offload to a database\n this._sessions = [];\n this._kernels = options.kernels;\n }\n /**\n * Get a session by id.\n *\n * @param id The id of the session.\n */\n async get(id) {\n const session = this._sessions.find((s) => s.id === id);\n if (!session) {\n throw Error(`Session ${id} not found`);\n }\n return session;\n }\n /**\n * List the running sessions\n */\n async list() {\n return this._sessions;\n }\n /**\n * Path an existing session.\n * This can be used to rename a session.\n *\n * - path updates session to track renamed paths\n * - kernel.name starts a new kernel with a given kernelspec\n *\n * @param options The options to patch the session.\n */\n async patch(options) {\n const { id, path, name, kernel } = options;\n const index = this._sessions.findIndex((s) => s.id === id);\n const session = this._sessions[index];\n if (!session) {\n throw Error(`Session ${id} not found`);\n }\n const patched = {\n ...session,\n path: path !== null && path !== void 0 ? path : session.path,\n name: name !== null && name !== void 0 ? name : session.name,\n };\n if (kernel) {\n // Kernel id takes precedence over name.\n if (kernel.id) {\n const session = this._sessions.find((session) => { var _a; return ((_a = session.kernel) === null || _a === void 0 ? void 0 : _a.id) === (kernel === null || kernel === void 0 ? void 0 : kernel.id); });\n if (session) {\n patched.kernel = session.kernel;\n }\n }\n else if (kernel.name) {\n const newKernel = await this._kernels.startNew({\n id: UUID.uuid4(),\n name: kernel.name,\n location: PathExt.dirname(patched.path),\n });\n if (newKernel) {\n patched.kernel = newKernel;\n }\n // clean up the session on kernel shutdown\n void this._handleKernelShutdown({\n kernelId: newKernel.id,\n sessionId: session.id,\n });\n }\n }\n this._sessions[index] = patched;\n return patched;\n }\n /**\n * Start a new session\n * TODO: read path and name\n *\n * @param options The options to start a new session.\n */\n async startNew(options) {\n var _a, _b, _c, _d;\n const { path, name } = options;\n const running = this._sessions.find((s) => s.name === name);\n if (running) {\n return running;\n }\n const kernelName = (_b = (_a = options.kernel) === null || _a === void 0 ? void 0 : _a.name) !== null && _b !== void 0 ? _b : '';\n const id = (_c = options.id) !== null && _c !== void 0 ? _c : UUID.uuid4();\n const nameOrPath = (_d = options.name) !== null && _d !== void 0 ? _d : options.path;\n const dirname = PathExt.dirname(options.name) || PathExt.dirname(options.path);\n const hasDrive = nameOrPath.includes(':');\n const driveName = hasDrive ? nameOrPath.split(':')[0] : '';\n // add drive name if missing (top level directory)\n const location = dirname.includes(driveName) ? dirname : `${driveName}:${dirname}`;\n const kernel = await this._kernels.startNew({\n id,\n name: kernelName,\n location,\n });\n const session = {\n id,\n path,\n name: name !== null && name !== void 0 ? name : path,\n type: 'notebook',\n kernel: {\n id: kernel.id,\n name: kernel.name,\n },\n };\n this._sessions.push(session);\n // clean up the session on kernel shutdown\n void this._handleKernelShutdown({ kernelId: id, sessionId: session.id });\n return session;\n }\n /**\n * Shut down a session.\n *\n * @param id The id of the session to shut down.\n */\n async shutdown(id) {\n var _a;\n const session = this._sessions.find((s) => s.id === id);\n if (!session) {\n throw Error(`Session ${id} not found`);\n }\n const kernelId = (_a = session.kernel) === null || _a === void 0 ? void 0 : _a.id;\n if (kernelId) {\n await this._kernels.shutdown(kernelId);\n }\n ArrayExt.removeFirstOf(this._sessions, session);\n }\n /**\n * Handle kernel shutdown\n */\n async _handleKernelShutdown({ kernelId, sessionId, }) {\n const runningKernel = await this._kernels.get(kernelId);\n if (runningKernel) {\n runningKernel.disposed.connect(() => {\n this.shutdown(sessionId);\n });\n }\n }\n}\n//# sourceMappingURL=sessions.js.map","import { Token } from '@lumino/coreutils';\n/**\n * The token for the settings service.\n */\nexport const ISettings = new Token('@jupyterlite/settings:ISettings');\n//# sourceMappingURL=tokens.js.map","import { PageConfig, URLExt } from '@jupyterlab/coreutils';\nimport { PromiseDelegate } from '@lumino/coreutils';\nimport * as json5 from 'json5';\n/**\n * The name of the local storage.\n */\nconst DEFAULT_STORAGE_NAME = 'JupyterLite Storage';\n/**\n * A class to handle requests to /api/settings\n */\nexport class Settings {\n constructor(options) {\n this._storageName = DEFAULT_STORAGE_NAME;\n this._storageDrivers = null;\n this._localforage = options.localforage;\n this._storageName = options.storageName || DEFAULT_STORAGE_NAME;\n this._storageDrivers = options.storageDrivers || null;\n this._ready = new PromiseDelegate();\n }\n /**\n * A promise that resolves when the settings storage is fully initialized\n */\n get ready() {\n return this._ready.promise;\n }\n /**\n * A lazy reference to initialized storage\n */\n get storage() {\n return this.ready.then(() => this._storage);\n }\n /**\n * Finish any initialization after server has started and all extensions are applied.\n */\n async initialize() {\n await this.initStorage();\n this._ready.resolve(void 0);\n }\n /**\n * Prepare the storage\n */\n async initStorage() {\n this._storage = this.defaultSettingsStorage();\n }\n /**\n * Get default options for localForage instances\n */\n get defaultStorageOptions() {\n var _a;\n const driver = ((_a = this._storageDrivers) === null || _a === void 0 ? void 0 : _a.length) ? this._storageDrivers : null;\n return {\n version: 1,\n name: this._storageName,\n ...(driver ? { driver } : {}),\n };\n }\n /**\n * Create a settings store.\n */\n defaultSettingsStorage() {\n return this._localforage.createInstance({\n description: 'Offline Storage for Settings',\n storeName: 'settings',\n ...this.defaultStorageOptions,\n });\n }\n /**\n * Get settings by plugin id\n *\n * @param pluginId the id of the plugin\n *\n */\n async get(pluginId) {\n const all = await this.getAll();\n const settings = all.settings;\n const setting = settings.find((setting) => {\n return setting.id === pluginId;\n });\n return setting;\n }\n /**\n * Get all the settings\n */\n async getAll() {\n const [allCore, allFederated] = await Promise.all([\n this._getAll('all.json'),\n this._getAll('all_federated.json'),\n ]);\n // JupyterLab 4 expects all settings to be returned in one go\n // so append the settings from federated plugins to the core ones\n const all = allCore.concat(allFederated);\n // return existing user settings if they exist\n const storage = await this.storage;\n const settings = await Promise.all(all.map(async (plugin) => {\n var _a;\n const { id } = plugin;\n const raw = (_a = (await storage.getItem(id))) !== null && _a !== void 0 ? _a : plugin.raw;\n return {\n ...Private.override(plugin),\n raw,\n settings: json5.parse(raw),\n };\n }));\n return { settings };\n }\n /**\n * Save settings for a given plugin id\n *\n * @param pluginId The id of the plugin\n * @param raw The raw settings\n *\n */\n async save(pluginId, raw) {\n await (await this.storage).setItem(pluginId, raw);\n }\n /**\n * Get all the settings for core or federated plugins\n */\n async _getAll(file) {\n var _a;\n const settingsUrl = (_a = PageConfig.getOption('settingsUrl')) !== null && _a !== void 0 ? _a : '/';\n const all = (await (await fetch(URLExt.join(settingsUrl, file))).json());\n return all;\n }\n}\n/**\n * A namespace for private data\n */\nvar Private;\n(function (Private) {\n const _overrides = JSON.parse(PageConfig.getOption('settingsOverrides') || '{}');\n /**\n * Override the defaults of the schema with ones from PageConfig\n *\n * @see https://github.com/jupyterlab/jupyterlab_server/blob/v2.5.2/jupyterlab_server/settings_handler.py#L216-L227\n */\n function override(plugin) {\n if (_overrides[plugin.id]) {\n if (!plugin.schema.properties) {\n // probably malformed, or only provides keyboard shortcuts, etc.\n plugin.schema.properties = {};\n }\n for (const [prop, propDefault] of Object.entries(_overrides[plugin.id] || {})) {\n plugin.schema.properties[prop].default = propDefault;\n }\n }\n return plugin;\n }\n Private.override = override;\n})(Private || (Private = {}));\n//# sourceMappingURL=settings.js.map","import { Token } from '@lumino/coreutils';\n/**\n * The token for the settings service.\n */\nexport const ITranslation = new Token('@jupyterlite/translation:ITranslation');\n//# sourceMappingURL=tokens.js.map","import { PageConfig, URLExt } from '@jupyterlab/coreutils';\n/**\n * A fake locale to retrieve all the language packs.\n */\nconst ALL = 'all';\n/**\n * A class to handle requests to /api/translations\n */\nexport class Translation {\n constructor() {\n this._prevLocale = '';\n }\n /**\n * Get the translation data for the given locale\n * @param locale The locale\n * @returns\n */\n async get(locale) {\n const apiURL = URLExt.join(PageConfig.getBaseUrl(), `api/translations/${locale}.json`);\n try {\n const response = await fetch(apiURL);\n const json = JSON.parse(await response.text());\n if (this._prevLocale !== ALL && locale === ALL) {\n // TODO: fix this logic upstream?\n // the upstream translation plugin relies on the comparison between\n // the display name and the native name to enable or disable the commands:\n // https://github.com/jupyterlab/jupyterlab/blob/befa831ffef36321b87f352a48fbe2439df6c872/packages/translation-extension/src/index.ts#L117\n const prev = this._prevLocale;\n json.data[prev].displayName = json.data[prev].nativeName;\n if (prev !== 'en') {\n json.data['en'].displayName = `${json.data['en'].nativeName} (default)`;\n }\n }\n this._prevLocale = locale;\n return json;\n }\n catch (e) {\n if (locale) {\n return {\n data: {},\n message: `Language pack '${locale}' not installed!`,\n };\n }\n return {\n data: {\n en: { displayName: 'English', nativeName: 'English' },\n },\n message: '',\n };\n }\n }\n}\n//# sourceMappingURL=translation.js.map","// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\nimport { Token } from '@lumino/coreutils';\n/**\n * The token for the localforage singleton.\n */\nexport const ILocalForage = new Token('@jupyterlite/localforge:ILocalForage');\n//# sourceMappingURL=tokens.js.map","// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\nimport { PageConfig } from '@jupyterlab/coreutils';\nimport { BroadcastChannelWrapper, Contents, IContents, IBroadcastChannelWrapper, } from '@jupyterlite/contents';\nimport { IKernels, Kernels, IKernelSpecs, KernelSpecs } from '@jupyterlite/kernel';\nimport { ILicenses, Licenses } from '@jupyterlite/licenses';\nimport { IServiceWorkerManager, ServiceWorkerManager, } from '@jupyterlite/server';\nimport { ISessions, Sessions } from '@jupyterlite/session';\nimport { ISettings, Settings } from '@jupyterlite/settings';\nimport { ITranslation, Translation } from '@jupyterlite/translation';\nimport { ILocalForage, ensureMemoryStorage } from '@jupyterlite/localforage';\nimport localforage from 'localforage';\n/**\n * The localforage plugin\n */\nconst localforagePlugin = {\n id: '@jupyterlite/server-extension:localforage',\n autoStart: true,\n provides: ILocalForage,\n activate: (app) => {\n return { localforage };\n },\n};\n/**\n * The volatile localforage memory plugin\n */\nconst localforageMemoryPlugin = {\n id: '@jupyterlite/server-extension:localforage-memory-storage',\n autoStart: true,\n requires: [ILocalForage],\n activate: async (app, forage) => {\n if (JSON.parse(PageConfig.getOption('enableMemoryStorage') || 'false')) {\n console.warn('Memory storage fallback enabled: contents and settings may not be saved');\n await ensureMemoryStorage(forage.localforage);\n }\n },\n};\n/**\n * The contents service plugin.\n */\nconst contentsPlugin = {\n id: '@jupyterlite/server-extension:contents',\n requires: [ILocalForage],\n autoStart: true,\n provides: IContents,\n activate: (app, forage) => {\n const storageName = PageConfig.getOption('contentsStorageName');\n const storageDrivers = JSON.parse(PageConfig.getOption('contentsStorageDrivers') || 'null');\n const { localforage } = forage;\n const contents = new Contents({\n storageName,\n storageDrivers,\n localforage,\n });\n app.started.then(() => contents.initialize().catch(console.warn));\n return contents;\n },\n};\n/**\n * A plugin providing the routes for the contents service.\n */\nconst contentsRoutesPlugin = {\n id: '@jupyterlite/server-extension:contents-routes',\n autoStart: true,\n requires: [IContents],\n activate: (app, contents) => {\n // GET /api/contents/{path}/checkpoints - Get a list of checkpoints for a file\n app.router.get('/api/contents/(.+)/checkpoints', async (req, filename) => {\n const res = await contents.listCheckpoints(filename);\n return new Response(JSON.stringify(res));\n });\n // POST /api/contents/{path}/checkpoints/{checkpoint_id} - Restore a file to a particular checkpointed state\n app.router.post('/api/contents/(.+)/checkpoints/(.*)', async (req, filename, checkpoint) => {\n const res = await contents.restoreCheckpoint(filename, checkpoint);\n return new Response(JSON.stringify(res), { status: 204 });\n });\n // POST /api/contents/{path}/checkpoints - Create a new checkpoint for a file\n app.router.post('/api/contents/(.+)/checkpoints', async (req, filename) => {\n const res = await contents.createCheckpoint(filename);\n return new Response(JSON.stringify(res), { status: 201 });\n });\n // DELETE /api/contents/{path}/checkpoints/{checkpoint_id} - Delete a checkpoint\n app.router.delete('/api/contents/(.+)/checkpoints/(.*)', async (req, filename, checkpoint) => {\n const res = await contents.deleteCheckpoint(filename, checkpoint);\n return new Response(JSON.stringify(res), { status: 204 });\n });\n // GET /api/contents/{path} - Get contents of file or directory\n app.router.get('/api/contents(.*)', async (req, filename) => {\n var _a;\n const options = {\n content: ((_a = req.query) === null || _a === void 0 ? void 0 : _a.content) === '1',\n };\n const nb = await contents.get(filename, options);\n if (!nb) {\n return new Response(null, { status: 404 });\n }\n return new Response(JSON.stringify(nb));\n });\n // POST /api/contents/{path} - Create a new file in the specified path\n app.router.post('/api/contents(.*)', async (req, path) => {\n const options = req.body;\n const copyFrom = options === null || options === void 0 ? void 0 : options.copy_from;\n let file;\n if (copyFrom) {\n file = await contents.copy(copyFrom, path);\n }\n else {\n file = await contents.newUntitled(options);\n }\n if (!file) {\n return new Response(null, { status: 400 });\n }\n return new Response(JSON.stringify(file), { status: 201 });\n });\n // PATCH /api/contents/{path} - Rename a file or directory without re-uploading content\n app.router.patch('/api/contents(.*)', async (req, filename) => {\n var _a, _b;\n const newPath = (_b = (_a = req.body) === null || _a === void 0 ? void 0 : _a.path) !== null && _b !== void 0 ? _b : '';\n filename = filename[0] === '/' ? filename.slice(1) : filename;\n const nb = await contents.rename(filename, newPath);\n return new Response(JSON.stringify(nb));\n });\n // PUT /api/contents/{path} - Save or upload a file\n app.router.put('/api/contents/(.+)', async (req, filename) => {\n const body = req.body;\n const nb = await contents.save(filename, body);\n return new Response(JSON.stringify(nb));\n });\n // DELETE /api/contents/{path} - Delete a file in the given path\n app.router.delete('/api/contents/(.+)', async (req, filename) => {\n await contents.delete(filename);\n return new Response(null, { status: 204 });\n });\n },\n};\n/**\n * A plugin installing the service worker.\n */\nconst serviceWorkerPlugin = {\n id: '@jupyterlite/server-extension:service-worker',\n autoStart: true,\n provides: IServiceWorkerManager,\n activate: (app) => {\n return new ServiceWorkerManager();\n },\n};\n/**\n * A plugin for handling communication with the Emscpriten file system.\n */\nconst emscriptenFileSystemPlugin = {\n id: '@jupyterlite/server-extension:emscripten-filesystem',\n autoStart: true,\n optional: [IServiceWorkerManager],\n provides: IBroadcastChannelWrapper,\n activate: (app, serviceWorkerRegistrationWrapper) => {\n const { contents } = app.serviceManager;\n const broadcaster = new BroadcastChannelWrapper({ contents });\n const what = 'Kernel filesystem and JupyterLite contents';\n function logStatus(msg, err) {\n if (err) {\n console.warn(err);\n }\n if (msg) {\n console.warn(msg);\n }\n if (err || msg) {\n console.warn(`${what} will NOT be synced`);\n }\n else {\n console.info(`${what} will be synced`);\n }\n }\n if (!serviceWorkerRegistrationWrapper) {\n logStatus('JupyterLite ServiceWorker not available');\n }\n else {\n serviceWorkerRegistrationWrapper.ready\n .then(() => {\n broadcaster.enable();\n logStatus();\n })\n .catch((err) => {\n logStatus('JupyterLite ServiceWorker failed to become available', err);\n });\n }\n return broadcaster;\n },\n};\n/**\n * The kernels service plugin.\n */\nconst kernelsPlugin = {\n id: '@jupyterlite/server-extension:kernels',\n autoStart: true,\n provides: IKernels,\n requires: [IKernelSpecs],\n activate: (app, kernelspecs) => {\n return new Kernels({ kernelspecs });\n },\n};\n/**\n * A plugin providing the routes for the kernels service\n */\nconst kernelsRoutesPlugin = {\n id: '@jupyterlite/server-extension:kernels-routes',\n autoStart: true,\n requires: [IKernels],\n activate: (app, kernels) => {\n // GET /api/kernels - List the running kernels\n app.router.get('/api/kernels', async (req) => {\n const res = await kernels.list();\n return new Response(JSON.stringify(res));\n });\n // POST /api/kernels/{kernel_id} - Restart a kernel\n app.router.post('/api/kernels/(.*)/restart', async (req, kernelId) => {\n const res = await kernels.restart(kernelId);\n return new Response(JSON.stringify(res));\n });\n // DELETE /api/kernels/{kernel_id} - Kill a kernel and delete the kernel id\n app.router.delete('/api/kernels/(.*)', async (req, kernelId) => {\n const res = await kernels.shutdown(kernelId);\n return new Response(JSON.stringify(res), { status: 204 });\n });\n },\n};\n/**\n * The kernel spec service plugin.\n */\nconst kernelSpecPlugin = {\n id: '@jupyterlite/server-extension:kernelspec',\n autoStart: true,\n provides: IKernelSpecs,\n activate: (app) => {\n return new KernelSpecs();\n },\n};\n/**\n * A plugin providing the routes for the kernelspec service.\n */\nconst kernelSpecRoutesPlugin = {\n id: '@jupyterlite/server-extension:kernelspec-routes',\n autoStart: true,\n requires: [IKernelSpecs],\n activate: (app, kernelspecs) => {\n app.router.get('/api/kernelspecs', async (req) => {\n const { specs } = kernelspecs;\n if (!specs) {\n return new Response(null);\n }\n // follow the same format as in Jupyter Server\n const allKernelSpecs = {};\n const allSpecs = specs.kernelspecs;\n Object.keys(allSpecs).forEach((name) => {\n const spec = allSpecs[name];\n const { resources } = spec !== null && spec !== void 0 ? spec : {};\n allKernelSpecs[name] = {\n name,\n spec,\n resources,\n };\n });\n const res = {\n default: specs.default,\n kernelspecs: allKernelSpecs,\n };\n return new Response(JSON.stringify(res));\n });\n },\n};\n/**\n * The licenses service plugin\n */\nconst licensesPlugin = {\n id: '@jupyterlite/server-extension:licenses',\n autoStart: true,\n provides: ILicenses,\n activate: (app) => {\n return new Licenses();\n },\n};\n/**\n * A plugin providing the routes for the licenses service.\n */\nconst licensesRoutesPlugin = {\n id: '@jupyterlite/server-extension:licenses-routes',\n autoStart: true,\n requires: [ILicenses],\n activate(app, licenses) {\n app.router.get('/api/licenses', async (req) => {\n const res = await licenses.get();\n return new Response(JSON.stringify(res));\n });\n },\n};\n/**\n * A plugin providing the routes for the lsp service.\n * TODO: provide the service in a separate plugin?\n */\nconst lspRoutesPlugin = {\n id: '@jupyterlite/server-extension:lsp-routes',\n autoStart: true,\n activate: (app) => {\n app.router.get('/lsp/status', async (req) => {\n return new Response(JSON.stringify({ version: 2, sessions: {}, specs: {} }));\n });\n },\n};\n/**\n * A plugin providing the routes for the nbconvert service.\n * TODO: provide the service in a separate plugin?\n */\nconst nbconvertRoutesPlugin = {\n id: '@jupyterlite/server-extension:nbconvert-routes',\n autoStart: true,\n activate: (app) => {\n app.router.get('/api/nbconvert', async (req) => {\n return new Response(JSON.stringify({}));\n });\n },\n};\n/**\n * The sessions service plugin.\n */\nconst sessionsPlugin = {\n id: '@jupyterlite/server-extension:sessions',\n autoStart: true,\n provides: ISessions,\n requires: [IKernels],\n activate: (app, kernels) => {\n return new Sessions({ kernels });\n },\n};\n/**\n * A plugin providing the routes for the session service.\n */\nconst sessionsRoutesPlugin = {\n id: '@jupyterlite/server-extension:sessions-routes',\n autoStart: true,\n requires: [ISessions],\n activate: (app, sessions) => {\n // GET /api/sessions/{session} - Get session\n app.router.get('/api/sessions/(.+)', async (req, id) => {\n const session = await sessions.get(id);\n return new Response(JSON.stringify(session), { status: 200 });\n });\n // GET /api/sessions - List available sessions\n app.router.get('/api/sessions', async (req) => {\n const list = await sessions.list();\n return new Response(JSON.stringify(list), { status: 200 });\n });\n // PATCH /api/sessions/{session} - This can be used to rename a session\n app.router.patch('/api/sessions(.*)', async (req, id) => {\n const options = req.body;\n const session = await sessions.patch(options);\n return new Response(JSON.stringify(session), { status: 200 });\n });\n // DELETE /api/sessions/{session} - Delete a session\n app.router.delete('/api/sessions/(.+)', async (req, id) => {\n await sessions.shutdown(id);\n return new Response(null, { status: 204 });\n });\n // POST /api/sessions - Create a new session or return an existing session if a session of the same name already exists\n app.router.post('/api/sessions', async (req) => {\n const options = req.body;\n const session = await sessions.startNew(options);\n return new Response(JSON.stringify(session), { status: 201 });\n });\n },\n};\n/**\n * The settings service plugin.\n */\nconst settingsPlugin = {\n id: '@jupyterlite/server-extension:settings',\n autoStart: true,\n requires: [ILocalForage],\n provides: ISettings,\n activate: (app, forage) => {\n const storageName = PageConfig.getOption('settingsStorageName');\n const storageDrivers = JSON.parse(PageConfig.getOption('settingsStorageDrivers') || 'null');\n const { localforage } = forage;\n const settings = new Settings({ storageName, storageDrivers, localforage });\n app.started.then(() => settings.initialize().catch(console.warn));\n return settings;\n },\n};\n/**\n * A plugin providing the routes for the settings service.\n */\nconst settingsRoutesPlugin = {\n id: '@jupyterlite/server-extension:settings-routes',\n autoStart: true,\n requires: [ISettings],\n activate: (app, settings) => {\n // TODO: improve the regex\n // const pluginPattern = new RegExp(/(?:@([^/]+?)[/])?([^/]+?):(\\w+)/);\n const pluginPattern = '/api/settings/((?:@([^/]+?)[/])?([^/]+?):([^:]+))$';\n app.router.get(pluginPattern, async (req, pluginId) => {\n const setting = await settings.get(pluginId);\n return new Response(JSON.stringify(setting));\n });\n app.router.put(pluginPattern, async (req, pluginId) => {\n const body = req.body;\n const { raw } = body;\n await settings.save(pluginId, raw);\n return new Response(null, { status: 204 });\n });\n app.router.get('/api/settings', async (req) => {\n const plugins = await settings.getAll();\n return new Response(JSON.stringify(plugins));\n });\n },\n};\n/**\n * The translation service plugin.\n */\nconst translationPlugin = {\n id: '@jupyterlite/server-extension:translation',\n autoStart: true,\n provides: ITranslation,\n activate: (app) => {\n const translation = new Translation();\n app.router.get('/api/translations/?(.*)', async (req, locale) => {\n if (locale === 'default') {\n locale = 'en';\n }\n const data = await translation.get(locale || 'all');\n return new Response(JSON.stringify(data));\n });\n return translation;\n },\n};\n/**\n * A plugin providing the routes for the translation service.\n */\nconst translationRoutesPlugin = {\n id: '@jupyterlite/server-extension:translation-routes',\n autoStart: true,\n requires: [ITranslation],\n activate: (app, translation) => {\n app.router.get('/api/translations/?(.*)', async (req, locale) => {\n const data = await translation.get(locale || 'all');\n return new Response(JSON.stringify(data));\n });\n },\n};\nconst plugins = [\n contentsPlugin,\n contentsRoutesPlugin,\n emscriptenFileSystemPlugin,\n kernelsPlugin,\n kernelsRoutesPlugin,\n kernelSpecPlugin,\n kernelSpecRoutesPlugin,\n licensesPlugin,\n licensesRoutesPlugin,\n localforageMemoryPlugin,\n localforagePlugin,\n lspRoutesPlugin,\n nbconvertRoutesPlugin,\n serviceWorkerPlugin,\n sessionsPlugin,\n sessionsRoutesPlugin,\n settingsPlugin,\n settingsRoutesPlugin,\n translationPlugin,\n translationRoutesPlugin,\n];\nexport default plugins;\n//# sourceMappingURL=index.js.map","// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\nimport memoryStorageDriver from 'localforage-memoryStorageDriver';\n/**\n * Ensure a localforage singleton has had the memory storage driver installed\n */\nexport async function ensureMemoryStorage(theLocalforage) {\n return await theLocalforage.defineDriver(memoryStorageDriver);\n}\n//# sourceMappingURL=memory.js.map","// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2019, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * The namespace for clipboard related functionality.\n */\nvar ClipboardExt;\n(function (ClipboardExt) {\n /**\n * Copy text to the system clipboard.\n *\n * @param text - The text to copy to the clipboard.\n */\n function copyText(text) {\n // Fetch the document body.\n const body = document.body;\n // Set up the clipboard event listener.\n const handler = (event) => {\n // Stop the event propagation.\n event.preventDefault();\n event.stopPropagation();\n // Set the clipboard data.\n event.clipboardData.setData('text', text);\n // Remove the event listener.\n body.removeEventListener('copy', handler, true);\n };\n // Add the event listener.\n body.addEventListener('copy', handler, true);\n // Trigger the event.\n document.execCommand('copy');\n }\n ClipboardExt.copyText = copyText;\n})(ClipboardExt || (ClipboardExt = {}));\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * The namespace for element related utilities.\n */\nvar ElementExt;\n(function (ElementExt) {\n /**\n * Compute the box sizing for an element.\n *\n * @param element - The element of interest.\n *\n * @returns The box sizing data for the specified element.\n */\n function boxSizing(element) {\n let style = window.getComputedStyle(element);\n let bt = parseFloat(style.borderTopWidth) || 0;\n let bl = parseFloat(style.borderLeftWidth) || 0;\n let br = parseFloat(style.borderRightWidth) || 0;\n let bb = parseFloat(style.borderBottomWidth) || 0;\n let pt = parseFloat(style.paddingTop) || 0;\n let pl = parseFloat(style.paddingLeft) || 0;\n let pr = parseFloat(style.paddingRight) || 0;\n let pb = parseFloat(style.paddingBottom) || 0;\n let hs = bl + pl + pr + br;\n let vs = bt + pt + pb + bb;\n return {\n borderTop: bt,\n borderLeft: bl,\n borderRight: br,\n borderBottom: bb,\n paddingTop: pt,\n paddingLeft: pl,\n paddingRight: pr,\n paddingBottom: pb,\n horizontalSum: hs,\n verticalSum: vs\n };\n }\n ElementExt.boxSizing = boxSizing;\n /**\n * Compute the size limits for an element.\n *\n * @param element - The element of interest.\n *\n * @returns The size limit data for the specified element.\n */\n function sizeLimits(element) {\n let style = window.getComputedStyle(element);\n let minWidth = parseFloat(style.minWidth) || 0;\n let minHeight = parseFloat(style.minHeight) || 0;\n let maxWidth = parseFloat(style.maxWidth) || Infinity;\n let maxHeight = parseFloat(style.maxHeight) || Infinity;\n maxWidth = Math.max(minWidth, maxWidth);\n maxHeight = Math.max(minHeight, maxHeight);\n return { minWidth, minHeight, maxWidth, maxHeight };\n }\n ElementExt.sizeLimits = sizeLimits;\n /**\n * Test whether a client position lies within an element.\n *\n * @param element - The DOM element of interest.\n *\n * @param clientX - The client X coordinate of interest.\n *\n * @param clientY - The client Y coordinate of interest.\n *\n * @returns Whether the point is within the given element.\n */\n function hitTest(element, clientX, clientY) {\n let rect = element.getBoundingClientRect();\n return (clientX >= rect.left &&\n clientX < rect.right &&\n clientY >= rect.top &&\n clientY < rect.bottom);\n }\n ElementExt.hitTest = hitTest;\n /**\n * Vertically scroll an element into view if needed.\n *\n * @param area - The scroll area element.\n *\n * @param element - The element of interest.\n *\n * #### Notes\n * This follows the \"nearest\" behavior of the native `scrollIntoView`\n * method, which is not supported by all browsers.\n * https://drafts.csswg.org/cssom-view/#element-scrolling-members\n *\n * If the element fully covers the visible area or is fully contained\n * within the visible area, no scrolling will take place. Otherwise,\n * the nearest edges of the area and element are aligned.\n */\n function scrollIntoViewIfNeeded(area, element) {\n let ar = area.getBoundingClientRect();\n let er = element.getBoundingClientRect();\n if (er.top <= ar.top && er.bottom >= ar.bottom) {\n return;\n }\n if (er.top < ar.top && er.height <= ar.height) {\n area.scrollTop -= ar.top - er.top;\n return;\n }\n if (er.bottom > ar.bottom && er.height >= ar.height) {\n area.scrollTop -= ar.top - er.top;\n return;\n }\n if (er.top < ar.top && er.height > ar.height) {\n area.scrollTop -= ar.bottom - er.bottom;\n return;\n }\n if (er.bottom > ar.bottom && er.height < ar.height) {\n area.scrollTop -= ar.bottom - er.bottom;\n return;\n }\n }\n ElementExt.scrollIntoViewIfNeeded = scrollIntoViewIfNeeded;\n})(ElementExt || (ElementExt = {}));\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * The namespace for platform related utilities.\n */\nvar Platform;\n(function (Platform) {\n /**\n * A flag indicating whether the platform is Mac.\n */\n Platform.IS_MAC = !!navigator.platform.match(/Mac/i);\n /**\n * A flag indicating whether the platform is Windows.\n */\n Platform.IS_WIN = !!navigator.platform.match(/Win/i);\n /**\n * A flag indicating whether the browser is IE.\n */\n Platform.IS_IE = /Trident/.test(navigator.userAgent);\n /**\n * A flag indicating whether the browser is Edge.\n */\n Platform.IS_EDGE = /Edge/.test(navigator.userAgent);\n /**\n * Test whether the `accel` key is pressed.\n *\n * @param event - The keyboard or mouse event of interest.\n *\n * @returns Whether the `accel` key is pressed.\n *\n * #### Notes\n * On Mac the `accel` key is the command key. On all other\n * platforms the `accel` key is the control key.\n */\n function accelKey(event) {\n return Platform.IS_MAC ? event.metaKey : event.ctrlKey;\n }\n Platform.accelKey = accelKey;\n})(Platform || (Platform = {}));\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * The namespace for selector related utilities.\n */\nvar Selector;\n(function (Selector) {\n /**\n * Calculate the specificity of a single CSS selector.\n *\n * @param selector - The CSS selector of interest.\n *\n * @returns The specificity of the selector.\n *\n * #### Undefined Behavior\n * The selector is invalid.\n *\n * #### Notes\n * This is based on https://www.w3.org/TR/css3-selectors/#specificity\n *\n * A larger number represents a more specific selector.\n *\n * The smallest possible specificity is `0`.\n *\n * The result is represented as a hex number `0x` where\n * each component is the count of the respective selector clause.\n *\n * If the selector contains commas, only the first clause is used.\n *\n * The computed result is cached, so subsequent calculations for the\n * same selector are extremely fast.\n */\n function calculateSpecificity(selector) {\n if (selector in Private.specificityCache) {\n return Private.specificityCache[selector];\n }\n let result = Private.calculateSingle(selector);\n return (Private.specificityCache[selector] = result);\n }\n Selector.calculateSpecificity = calculateSpecificity;\n /**\n * Test whether a selector is a valid CSS selector.\n *\n * @param selector - The CSS selector of interest.\n *\n * @returns `true` if the selector is valid, `false` otherwise.\n *\n * #### Notes\n * The computed result is cached, so subsequent tests for the same\n * selector are extremely fast.\n */\n function isValid(selector) {\n if (selector in Private.validityCache) {\n return Private.validityCache[selector];\n }\n let result = true;\n try {\n Private.testElem.querySelector(selector);\n }\n catch (err) {\n result = false;\n }\n return (Private.validityCache[selector] = result);\n }\n Selector.isValid = isValid;\n /**\n * Test whether an element matches a CSS selector.\n *\n * @param element - The element of interest.\n *\n * @param selector - The valid CSS selector of interest.\n *\n * @returns `true` if the element is a match, `false` otherwise.\n *\n * #### Notes\n * This function uses the builtin browser capabilities when possible,\n * falling back onto a document query otherwise.\n */\n function matches(element, selector) {\n return Private.protoMatchFunc.call(element, selector);\n }\n Selector.matches = matches;\n})(Selector || (Selector = {}));\n/**\n * The namespace for the module implementation details.\n */\nvar Private;\n(function (Private) {\n /**\n * A cache of computed selector specificity values.\n */\n Private.specificityCache = Object.create(null);\n /**\n * A cache of computed selector validity.\n */\n Private.validityCache = Object.create(null);\n /**\n * An empty element for testing selector validity.\n */\n Private.testElem = document.createElement('div');\n /**\n * A cross-browser CSS selector matching prototype function.\n */\n Private.protoMatchFunc = (() => {\n let proto = Element.prototype;\n return (proto.matches ||\n proto.matchesSelector ||\n proto.mozMatchesSelector ||\n proto.msMatchesSelector ||\n proto.oMatchesSelector ||\n proto.webkitMatchesSelector ||\n function (selector) {\n let elem = this;\n let matches = elem.ownerDocument\n ? elem.ownerDocument.querySelectorAll(selector)\n : [];\n return Array.prototype.indexOf.call(matches, elem) !== -1;\n });\n })();\n /**\n * Calculate the specificity of a single selector.\n *\n * The behavior is undefined if the selector is invalid.\n */\n function calculateSingle(selector) {\n // Ignore anything after the first comma.\n selector = selector.split(',', 1)[0];\n // Setup the aggregate counters.\n let a = 0;\n let b = 0;\n let c = 0;\n // Apply a regex to the front of the selector. If it succeeds, that\n // portion of the selector is removed. Returns a success/fail flag.\n function match(re) {\n let match = selector.match(re);\n if (match === null) {\n return false;\n }\n selector = selector.slice(match[0].length);\n return true;\n }\n // Replace the negation pseudo-class (which is ignored),\n // but keep its inner content (which is not ignored).\n selector = selector.replace(NEGATION_RE, ' $1 ');\n // Continue matching until the selector is consumed.\n while (selector.length > 0) {\n // Match an ID selector.\n if (match(ID_RE)) {\n a++;\n continue;\n }\n // Match a class selector.\n if (match(CLASS_RE)) {\n b++;\n continue;\n }\n // Match an attribute selector.\n if (match(ATTR_RE)) {\n b++;\n continue;\n }\n // Match a pseudo-element selector. This is done before matching\n // a pseudo-class since this regex overlaps with that regex.\n if (match(PSEUDO_ELEM_RE)) {\n c++;\n continue;\n }\n // Match a pseudo-class selector.\n if (match(PSEDUO_CLASS_RE)) {\n b++;\n continue;\n }\n // Match a plain type selector.\n if (match(TYPE_RE)) {\n c++;\n continue;\n }\n // Finally, match any ignored characters.\n if (match(IGNORE_RE)) {\n continue;\n }\n // At this point, the selector is assumed to be invalid.\n return 0;\n }\n // Clamp each component to a reasonable base.\n a = Math.min(a, 0xff);\n b = Math.min(b, 0xff);\n c = Math.min(c, 0xff);\n // Combine the components into a single result.\n return (a << 16) | (b << 8) | c;\n }\n Private.calculateSingle = calculateSingle;\n /**\n * A regex which matches an ID selector at string start.\n */\n const ID_RE = /^#[^\\s\\+>~#\\.\\[:]+/;\n /**\n * A regex which matches a class selector at string start.\n */\n const CLASS_RE = /^\\.[^\\s\\+>~#\\.\\[:]+/;\n /**\n * A regex which matches an attribute selector at string start.\n */\n const ATTR_RE = /^\\[[^\\]]+\\]/;\n /**\n * A regex which matches a type selector at string start.\n */\n const TYPE_RE = /^[^\\s\\+>~#\\.\\[:]+/;\n /**\n * A regex which matches a pseudo-element selector at string start.\n */\n const PSEUDO_ELEM_RE = /^(::[^\\s\\+>~#\\.\\[:]+|:first-line|:first-letter|:before|:after)/;\n /**\n * A regex which matches a pseudo-class selector at string start.\n */\n const PSEDUO_CLASS_RE = /^:[^\\s\\+>~#\\.\\[:]+/;\n /**\n * A regex which matches ignored characters at string start.\n */\n const IGNORE_RE = /^[\\s\\+>~\\*]+/;\n /**\n * A regex which matches the negation pseudo-class globally.\n */\n const NEGATION_RE = /:not\\(([^\\)]+)\\)/g;\n})(Private || (Private = {}));\n\nexport { ClipboardExt, ElementExt, Platform, Selector };\n//# sourceMappingURL=index.es6.js.map\n","import { Signal } from '@lumino/signaling';\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * @packageDocumentation\n * @module disposable\n */\n/**\n * A disposable object which delegates to a callback function.\n */\nclass DisposableDelegate {\n /**\n * Construct a new disposable delegate.\n *\n * @param fn - The callback function to invoke on dispose.\n */\n constructor(fn) {\n this._fn = fn;\n }\n /**\n * Test whether the delegate has been disposed.\n */\n get isDisposed() {\n return !this._fn;\n }\n /**\n * Dispose of the delegate and invoke the callback function.\n */\n dispose() {\n if (!this._fn) {\n return;\n }\n let fn = this._fn;\n this._fn = null;\n fn();\n }\n}\n/**\n * An observable disposable object which delegates to a callback function.\n */\nclass ObservableDisposableDelegate extends DisposableDelegate {\n constructor() {\n super(...arguments);\n this._disposed = new Signal(this);\n }\n /**\n * A signal emitted when the delegate is disposed.\n */\n get disposed() {\n return this._disposed;\n }\n /**\n * Dispose of the delegate and invoke the callback function.\n */\n dispose() {\n if (this.isDisposed) {\n return;\n }\n super.dispose();\n this._disposed.emit(undefined);\n Signal.clearData(this);\n }\n}\n/**\n * An object which manages a collection of disposable items.\n */\nclass DisposableSet {\n constructor() {\n this._isDisposed = false;\n this._items = new Set();\n }\n /**\n * Test whether the set has been disposed.\n */\n get isDisposed() {\n return this._isDisposed;\n }\n /**\n * Dispose of the set and the items it contains.\n *\n * #### Notes\n * Items are disposed in the order they are added to the set.\n */\n dispose() {\n if (this._isDisposed) {\n return;\n }\n this._isDisposed = true;\n this._items.forEach(item => {\n item.dispose();\n });\n this._items.clear();\n }\n /**\n * Test whether the set contains a specific item.\n *\n * @param item - The item of interest.\n *\n * @returns `true` if the set contains the item, `false` otherwise.\n */\n contains(item) {\n return this._items.has(item);\n }\n /**\n * Add a disposable item to the set.\n *\n * @param item - The item to add to the set.\n *\n * #### Notes\n * If the item is already contained in the set, this is a no-op.\n */\n add(item) {\n this._items.add(item);\n }\n /**\n * Remove a disposable item from the set.\n *\n * @param item - The item to remove from the set.\n *\n * #### Notes\n * If the item is not contained in the set, this is a no-op.\n */\n remove(item) {\n this._items.delete(item);\n }\n /**\n * Remove all items from the set.\n */\n clear() {\n this._items.clear();\n }\n}\n/**\n * The namespace for the `DisposableSet` class statics.\n */\n(function (DisposableSet) {\n /**\n * Create a disposable set from an iterable of items.\n *\n * @param items - The iterable object of interest.\n *\n * @returns A new disposable initialized with the given items.\n */\n function from(items) {\n let set = new DisposableSet();\n for (const item of items) {\n set.add(item);\n }\n return set;\n }\n DisposableSet.from = from;\n})(DisposableSet || (DisposableSet = {}));\n/**\n * An observable object which manages a collection of disposable items.\n */\nclass ObservableDisposableSet extends DisposableSet {\n constructor() {\n super(...arguments);\n this._disposed = new Signal(this);\n }\n /**\n * A signal emitted when the set is disposed.\n */\n get disposed() {\n return this._disposed;\n }\n /**\n * Dispose of the set and the items it contains.\n *\n * #### Notes\n * Items are disposed in the order they are added to the set.\n */\n dispose() {\n if (this.isDisposed) {\n return;\n }\n super.dispose();\n this._disposed.emit(undefined);\n Signal.clearData(this);\n }\n}\n/**\n * The namespace for the `ObservableDisposableSet` class statics.\n */\n(function (ObservableDisposableSet) {\n /**\n * Create an observable disposable set from an iterable of items.\n *\n * @param items - The iterable object of interest.\n *\n * @returns A new disposable initialized with the given items.\n */\n function from(items) {\n let set = new ObservableDisposableSet();\n for (const item of items) {\n set.add(item);\n }\n return set;\n }\n ObservableDisposableSet.from = from;\n})(ObservableDisposableSet || (ObservableDisposableSet = {}));\n\nexport { DisposableDelegate, DisposableSet, ObservableDisposableDelegate, ObservableDisposableSet };\n//# sourceMappingURL=index.es6.js.map\n","// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * @packageDocumentation\n * @module keyboard\n */\n/**\n * Get the global application keyboard layout instance.\n *\n * @returns The keyboard layout for use by the application.\n *\n * #### Notes\n * The default keyboard layout is US-English.\n */\nfunction getKeyboardLayout() {\n return Private.keyboardLayout;\n}\n/**\n * Set the global application keyboard layout instance.\n *\n * @param - The keyboard layout for use by the application.\n *\n * #### Notes\n * The keyboard layout should typically be set on application startup\n * to a layout which is appropriate for the user's system.\n */\nfunction setKeyboardLayout(layout) {\n Private.keyboardLayout = layout;\n}\n/**\n * A concrete implementation of {@link IKeyboardLayout} based on keycodes.\n *\n * The `keyCode` property of a `'keydown'` event is a browser and OS\n * specific representation of the physical key (not character) which\n * was pressed on a keyboard. While not the most convenient API, it\n * is currently the only one which works reliably on all browsers.\n *\n * This class accepts a user-defined mapping of keycode to key, which\n * allows for reliable shortcuts tailored to the user's system.\n */\nclass KeycodeLayout {\n /**\n * Construct a new keycode layout.\n *\n * @param name - The human readable name for the layout.\n *\n * @param codes - A mapping of keycode to key value.\n *\n * @param modifierKeys - Array of modifier key names\n */\n constructor(name, codes, modifierKeys = []) {\n this.name = name;\n this._codes = codes;\n this._keys = KeycodeLayout.extractKeys(codes);\n this._modifierKeys = KeycodeLayout.convertToKeySet(modifierKeys);\n }\n /**\n * Get an array of the key values supported by the layout.\n *\n * @returns A new array of the supported key values.\n */\n keys() {\n return Object.keys(this._keys);\n }\n /**\n * Test whether the given key is a valid value for the layout.\n *\n * @param key - The user provided key to test for validity.\n *\n * @returns `true` if the key is valid, `false` otherwise.\n */\n isValidKey(key) {\n return key in this._keys;\n }\n /**\n * Test whether the given key is a modifier key.\n *\n * @param key - The user provided key.\n *\n * @returns `true` if the key is a modifier key, `false` otherwise.\n */\n isModifierKey(key) {\n return key in this._modifierKeys;\n }\n /**\n * Get the key for a `'keydown'` event.\n *\n * @param event - The event object for a `'keydown'` event.\n *\n * @returns The associated key value, or an empty string if\n * the event does not represent a valid primary key.\n */\n keyForKeydownEvent(event) {\n return this._codes[event.keyCode] || '';\n }\n}\n/**\n * The namespace for the `KeycodeLayout` class statics.\n */\n(function (KeycodeLayout) {\n /**\n * Extract the set of keys from a code map.\n *\n * @param code - The code map of interest.\n *\n * @returns A set of the keys in the code map.\n */\n function extractKeys(codes) {\n let keys = Object.create(null);\n for (let c in codes) {\n keys[codes[c]] = true;\n }\n return keys;\n }\n KeycodeLayout.extractKeys = extractKeys;\n /**\n * Convert array of keys to a key set.\n *\n * @param keys - The array that needs to be converted\n *\n * @returns A set of the keys in the array.\n */\n function convertToKeySet(keys) {\n let keySet = Object(null);\n for (let i = 0, n = keys.length; i < n; ++i) {\n keySet[keys[i]] = true;\n }\n return keySet;\n }\n KeycodeLayout.convertToKeySet = convertToKeySet;\n})(KeycodeLayout || (KeycodeLayout = {}));\n/**\n * A keycode-based keyboard layout for US English keyboards.\n *\n * This layout is valid for the following OS/Browser combinations.\n *\n * - Windows\n * - Chrome\n * - Firefox\n * - IE\n *\n * - OSX\n * - Chrome\n * - Firefox\n * - Safari\n *\n * - Linux\n * - Chrome\n * - Firefox\n *\n * Other combinations may also work, but are untested.\n */\nconst EN_US = new KeycodeLayout('en-us', {\n 8: 'Backspace',\n 9: 'Tab',\n 13: 'Enter',\n 16: 'Shift',\n 17: 'Ctrl',\n 18: 'Alt',\n 19: 'Pause',\n 27: 'Escape',\n 32: 'Space',\n 33: 'PageUp',\n 34: 'PageDown',\n 35: 'End',\n 36: 'Home',\n 37: 'ArrowLeft',\n 38: 'ArrowUp',\n 39: 'ArrowRight',\n 40: 'ArrowDown',\n 45: 'Insert',\n 46: 'Delete',\n 48: '0',\n 49: '1',\n 50: '2',\n 51: '3',\n 52: '4',\n 53: '5',\n 54: '6',\n 55: '7',\n 56: '8',\n 57: '9',\n 59: ';',\n 61: '=',\n 65: 'A',\n 66: 'B',\n 67: 'C',\n 68: 'D',\n 69: 'E',\n 70: 'F',\n 71: 'G',\n 72: 'H',\n 73: 'I',\n 74: 'J',\n 75: 'K',\n 76: 'L',\n 77: 'M',\n 78: 'N',\n 79: 'O',\n 80: 'P',\n 81: 'Q',\n 82: 'R',\n 83: 'S',\n 84: 'T',\n 85: 'U',\n 86: 'V',\n 87: 'W',\n 88: 'X',\n 89: 'Y',\n 90: 'Z',\n 91: 'Meta',\n 93: 'ContextMenu',\n 96: '0',\n 97: '1',\n 98: '2',\n 99: '3',\n 100: '4',\n 101: '5',\n 102: '6',\n 103: '7',\n 104: '8',\n 105: '9',\n 106: '*',\n 107: '+',\n 109: '-',\n 110: '.',\n 111: '/',\n 112: 'F1',\n 113: 'F2',\n 114: 'F3',\n 115: 'F4',\n 116: 'F5',\n 117: 'F6',\n 118: 'F7',\n 119: 'F8',\n 120: 'F9',\n 121: 'F10',\n 122: 'F11',\n 123: 'F12',\n 173: '-',\n 186: ';',\n 187: '=',\n 188: ',',\n 189: '-',\n 190: '.',\n 191: '/',\n 192: '`',\n 219: '[',\n 220: '\\\\',\n 221: ']',\n 222: \"'\",\n 224: 'Meta' // firefox\n}, ['Shift', 'Ctrl', 'Alt', 'Meta'] // modifier keys\n);\n/**\n * The namespace for the module implementation details.\n */\nvar Private;\n(function (Private) {\n /**\n * The global keyboard layout instance.\n */\n Private.keyboardLayout = EN_US;\n})(Private || (Private = {}));\n\nexport { EN_US, KeycodeLayout, getKeyboardLayout, setKeyboardLayout };\n//# sourceMappingURL=index.es6.js.map\n","import { ArrayExt } from '@lumino/algorithm';\nimport { JSONExt } from '@lumino/coreutils';\nimport { DisposableDelegate } from '@lumino/disposable';\nimport { Platform, Selector } from '@lumino/domutils';\nimport { getKeyboardLayout } from '@lumino/keyboard';\nimport { Signal } from '@lumino/signaling';\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * @packageDocumentation\n * @module commands\n */\n/**\n * An object which manages a collection of commands.\n *\n * #### Notes\n * A command registry can be used to populate a variety of action-based\n * widgets, such as command palettes, menus, and toolbars.\n */\nclass CommandRegistry {\n constructor() {\n this._timerID = 0;\n this._replaying = false;\n this._keystrokes = [];\n this._keydownEvents = [];\n this._keyBindings = [];\n this._exactKeyMatch = null;\n this._commands = new Map();\n this._commandChanged = new Signal(this);\n this._commandExecuted = new Signal(this);\n this._keyBindingChanged = new Signal(this);\n }\n /**\n * A signal emitted when a command has changed.\n *\n * #### Notes\n * This signal is useful for visual representations of commands which\n * need to refresh when the state of a relevant command has changed.\n */\n get commandChanged() {\n return this._commandChanged;\n }\n /**\n * A signal emitted when a command has executed.\n *\n * #### Notes\n * Care should be taken when consuming this signal. The command system is used\n * by many components for many user actions. Handlers registered with this\n * signal must return quickly to ensure the overall application remains responsive.\n */\n get commandExecuted() {\n return this._commandExecuted;\n }\n /**\n * A signal emitted when a key binding is changed.\n */\n get keyBindingChanged() {\n return this._keyBindingChanged;\n }\n /**\n * A read-only array of the key bindings in the registry.\n */\n get keyBindings() {\n return this._keyBindings;\n }\n /**\n * List the ids of the registered commands.\n *\n * @returns A new array of the registered command ids.\n */\n listCommands() {\n return Array.from(this._commands.keys());\n }\n /**\n * Test whether a specific command is registered.\n *\n * @param id - The id of the command of interest.\n *\n * @returns `true` if the command is registered, `false` otherwise.\n */\n hasCommand(id) {\n return this._commands.has(id);\n }\n /**\n * Add a command to the registry.\n *\n * @param id - The unique id of the command.\n *\n * @param options - The options for the command.\n *\n * @returns A disposable which will remove the command.\n *\n * @throws An error if the given `id` is already registered.\n */\n addCommand(id, options) {\n // Throw an error if the id is already registered.\n if (this._commands.has(id)) {\n throw new Error(`Command '${id}' already registered.`);\n }\n // Add the command to the registry.\n this._commands.set(id, Private.createCommand(options));\n // Emit the `commandChanged` signal.\n this._commandChanged.emit({ id, type: 'added' });\n // Return a disposable which will remove the command.\n return new DisposableDelegate(() => {\n // Remove the command from the registry.\n this._commands.delete(id);\n // Emit the `commandChanged` signal.\n this._commandChanged.emit({ id, type: 'removed' });\n });\n }\n /**\n * Notify listeners that the state of a command has changed.\n *\n * @param id - The id of the command which has changed. If more than\n * one command has changed, this argument should be omitted.\n *\n * @throws An error if the given `id` is not registered.\n *\n * #### Notes\n * This method should be called by the command author whenever the\n * application state changes such that the results of the command\n * metadata functions may have changed.\n *\n * This will cause the `commandChanged` signal to be emitted.\n */\n notifyCommandChanged(id) {\n if (id !== undefined && !this._commands.has(id)) {\n throw new Error(`Command '${id}' is not registered.`);\n }\n this._commandChanged.emit({ id, type: id ? 'changed' : 'many-changed' });\n }\n /**\n * Get the description for a specific command.\n *\n * @param id - The id of the command of interest.\n *\n * @param args - The arguments for the command.\n *\n * @returns The description for the command.\n */\n describedBy(id, args = JSONExt.emptyObject) {\n var _a;\n let cmd = this._commands.get(id);\n return Promise.resolve((_a = cmd === null || cmd === void 0 ? void 0 : cmd.describedBy.call(undefined, args)) !== null && _a !== void 0 ? _a : { args: null });\n }\n /**\n * Get the display label for a specific command.\n *\n * @param id - The id of the command of interest.\n *\n * @param args - The arguments for the command.\n *\n * @returns The display label for the command, or an empty string\n * if the command is not registered.\n */\n label(id, args = JSONExt.emptyObject) {\n var _a;\n let cmd = this._commands.get(id);\n return (_a = cmd === null || cmd === void 0 ? void 0 : cmd.label.call(undefined, args)) !== null && _a !== void 0 ? _a : '';\n }\n /**\n * Get the mnemonic index for a specific command.\n *\n * @param id - The id of the command of interest.\n *\n * @param args - The arguments for the command.\n *\n * @returns The mnemonic index for the command, or `-1` if the\n * command is not registered.\n */\n mnemonic(id, args = JSONExt.emptyObject) {\n let cmd = this._commands.get(id);\n return cmd ? cmd.mnemonic.call(undefined, args) : -1;\n }\n /**\n * Get the icon renderer for a specific command.\n *\n * DEPRECATED: if set to a string value, the .icon field will\n * function as an alias for the .iconClass field, for backwards\n * compatibility. In the future when this is removed, the default\n * return type will become undefined.\n *\n * @param id - The id of the command of interest.\n *\n * @param args - The arguments for the command.\n *\n * @returns The icon renderer for the command or `undefined`.\n */\n icon(id, args = JSONExt.emptyObject) {\n var _a;\n return (_a = this._commands.get(id)) === null || _a === void 0 ? void 0 : _a.icon.call(undefined, args);\n }\n /**\n * Get the icon class for a specific command.\n *\n * @param id - The id of the command of interest.\n *\n * @param args - The arguments for the command.\n *\n * @returns The icon class for the command, or an empty string if\n * the command is not registered.\n */\n iconClass(id, args = JSONExt.emptyObject) {\n let cmd = this._commands.get(id);\n return cmd ? cmd.iconClass.call(undefined, args) : '';\n }\n /**\n * Get the icon label for a specific command.\n *\n * @param id - The id of the command of interest.\n *\n * @param args - The arguments for the command.\n *\n * @returns The icon label for the command, or an empty string if\n * the command is not registered.\n */\n iconLabel(id, args = JSONExt.emptyObject) {\n let cmd = this._commands.get(id);\n return cmd ? cmd.iconLabel.call(undefined, args) : '';\n }\n /**\n * Get the short form caption for a specific command.\n *\n * @param id - The id of the command of interest.\n *\n * @param args - The arguments for the command.\n *\n * @returns The caption for the command, or an empty string if the\n * command is not registered.\n */\n caption(id, args = JSONExt.emptyObject) {\n let cmd = this._commands.get(id);\n return cmd ? cmd.caption.call(undefined, args) : '';\n }\n /**\n * Get the usage help text for a specific command.\n *\n * @param id - The id of the command of interest.\n *\n * @param args - The arguments for the command.\n *\n * @returns The usage text for the command, or an empty string if\n * the command is not registered.\n */\n usage(id, args = JSONExt.emptyObject) {\n let cmd = this._commands.get(id);\n return cmd ? cmd.usage.call(undefined, args) : '';\n }\n /**\n * Get the extra class name for a specific command.\n *\n * @param id - The id of the command of interest.\n *\n * @param args - The arguments for the command.\n *\n * @returns The class name for the command, or an empty string if\n * the command is not registered.\n */\n className(id, args = JSONExt.emptyObject) {\n let cmd = this._commands.get(id);\n return cmd ? cmd.className.call(undefined, args) : '';\n }\n /**\n * Get the dataset for a specific command.\n *\n * @param id - The id of the command of interest.\n *\n * @param args - The arguments for the command.\n *\n * @returns The dataset for the command, or an empty dataset if\n * the command is not registered.\n */\n dataset(id, args = JSONExt.emptyObject) {\n let cmd = this._commands.get(id);\n return cmd ? cmd.dataset.call(undefined, args) : {};\n }\n /**\n * Test whether a specific command is enabled.\n *\n * @param id - The id of the command of interest.\n *\n * @param args - The arguments for the command.\n *\n * @returns A boolean indicating whether the command is enabled,\n * or `false` if the command is not registered.\n */\n isEnabled(id, args = JSONExt.emptyObject) {\n let cmd = this._commands.get(id);\n return cmd ? cmd.isEnabled.call(undefined, args) : false;\n }\n /**\n * Test whether a specific command is toggled.\n *\n * @param id - The id of the command of interest.\n *\n * @param args - The arguments for the command.\n *\n * @returns A boolean indicating whether the command is toggled,\n * or `false` if the command is not registered.\n */\n isToggled(id, args = JSONExt.emptyObject) {\n let cmd = this._commands.get(id);\n return cmd ? cmd.isToggled.call(undefined, args) : false;\n }\n /**\n * Test whether a specific command is toggleable.\n *\n * @param id - The id of the command of interest.\n *\n * @param args - The arguments for the command.\n *\n * @returns A boolean indicating whether the command is toggleable,\n * or `false` if the command is not registered.\n */\n isToggleable(id, args = JSONExt.emptyObject) {\n let cmd = this._commands.get(id);\n return cmd ? cmd.isToggleable : false;\n }\n /**\n * Test whether a specific command is visible.\n *\n * @param id - The id of the command of interest.\n *\n * @param args - The arguments for the command.\n *\n * @returns A boolean indicating whether the command is visible,\n * or `false` if the command is not registered.\n */\n isVisible(id, args = JSONExt.emptyObject) {\n let cmd = this._commands.get(id);\n return cmd ? cmd.isVisible.call(undefined, args) : false;\n }\n /**\n * Execute a specific command.\n *\n * @param id - The id of the command of interest.\n *\n * @param args - The arguments for the command.\n *\n * @returns A promise which resolves with the result of the command.\n *\n * #### Notes\n * The promise will reject if the command throws an exception,\n * or if the command is not registered.\n */\n execute(id, args = JSONExt.emptyObject) {\n // Reject if the command is not registered.\n let cmd = this._commands.get(id);\n if (!cmd) {\n return Promise.reject(new Error(`Command '${id}' not registered.`));\n }\n // Execute the command and reject if an exception is thrown.\n let value;\n try {\n value = cmd.execute.call(undefined, args);\n }\n catch (err) {\n value = Promise.reject(err);\n }\n // Create the return promise which resolves the result.\n let result = Promise.resolve(value);\n // Emit the command executed signal.\n this._commandExecuted.emit({ id, args, result });\n // Return the result promise to the caller.\n return result;\n }\n /**\n * Add a key binding to the registry.\n *\n * @param options - The options for creating the key binding.\n *\n * @returns A disposable which removes the added key binding.\n *\n * #### Notes\n * If multiple key bindings are registered for the same sequence, the\n * binding with the highest selector specificity is executed first. A\n * tie is broken by using the most recently added key binding.\n *\n * Ambiguous key bindings are resolved with a timeout. As an example,\n * suppose two key bindings are registered: one with the key sequence\n * `['Ctrl D']`, and another with `['Ctrl D', 'Ctrl W']`. If the user\n * presses `Ctrl D`, the first binding cannot be immediately executed\n * since the user may intend to complete the chord with `Ctrl W`. For\n * such cases, a timer is used to allow the chord to be completed. If\n * the chord is not completed before the timeout, the first binding\n * is executed.\n */\n addKeyBinding(options) {\n // Create the binding for the given options.\n let binding = Private.createKeyBinding(options);\n // Add the key binding to the bindings array.\n this._keyBindings.push(binding);\n // Emit the `bindingChanged` signal.\n this._keyBindingChanged.emit({ binding, type: 'added' });\n // Return a disposable which will remove the binding.\n return new DisposableDelegate(() => {\n // Remove the binding from the array.\n ArrayExt.removeFirstOf(this._keyBindings, binding);\n // Emit the `bindingChanged` signal.\n this._keyBindingChanged.emit({ binding, type: 'removed' });\n });\n }\n /**\n * Process a `'keydown'` event and invoke a matching key binding.\n *\n * @param event - The event object for a `'keydown'` event.\n *\n * #### Notes\n * This should be called in response to a `'keydown'` event in order\n * to invoke the command for the best matching key binding.\n *\n * The registry **does not** install its own listener for `'keydown'`\n * events. This allows the application full control over the nodes\n * and phase for which the registry processes `'keydown'` events.\n *\n * When the keydown event is processed, if the event target or any of its\n * ancestor nodes has a `data-lm-suppress-shortcuts` attribute, its keydown\n * events will not invoke commands.\n */\n processKeydownEvent(event) {\n // Bail immediately if playing back keystrokes.\n if (this._replaying || CommandRegistry.isModifierKeyPressed(event)) {\n return;\n }\n // Get the normalized keystroke for the event.\n let keystroke = CommandRegistry.keystrokeForKeydownEvent(event);\n // If the keystroke is not valid for the keyboard layout, replay\n // any suppressed events and clear the pending state.\n if (!keystroke) {\n this._replayKeydownEvents();\n this._clearPendingState();\n return;\n }\n // Add the keystroke to the current key sequence.\n this._keystrokes.push(keystroke);\n // Find the exact and partial matches for the key sequence.\n let { exact, partial } = Private.matchKeyBinding(this._keyBindings, this._keystrokes, event);\n // If there is no exact match and no partial match, replay\n // any suppressed events and clear the pending state.\n if (!exact && !partial) {\n this._replayKeydownEvents();\n this._clearPendingState();\n return;\n }\n // Stop propagation of the event. If there is only a partial match,\n // the event will be replayed if a final exact match never occurs.\n event.preventDefault();\n event.stopPropagation();\n // If there is an exact match but no partial match, the exact match\n // can be dispatched immediately. The pending state is cleared so\n // the next key press starts from the default state.\n if (exact && !partial) {\n this._executeKeyBinding(exact);\n this._clearPendingState();\n return;\n }\n // If there is both an exact match and a partial match, the exact\n // match is stored for future dispatch in case the timer expires\n // before a more specific match is triggered.\n if (exact) {\n this._exactKeyMatch = exact;\n }\n // Store the event for possible playback in the future.\n this._keydownEvents.push(event);\n // (Re)start the timer to dispatch the most recent exact match\n // in case the partial match fails to result in an exact match.\n this._startTimer();\n }\n /**\n * Start or restart the pending timeout.\n */\n _startTimer() {\n this._clearTimer();\n this._timerID = window.setTimeout(() => {\n this._onPendingTimeout();\n }, Private.CHORD_TIMEOUT);\n }\n /**\n * Clear the pending timeout.\n */\n _clearTimer() {\n if (this._timerID !== 0) {\n clearTimeout(this._timerID);\n this._timerID = 0;\n }\n }\n /**\n * Replay the keydown events which were suppressed.\n */\n _replayKeydownEvents() {\n if (this._keydownEvents.length === 0) {\n return;\n }\n this._replaying = true;\n this._keydownEvents.forEach(Private.replayKeyEvent);\n this._replaying = false;\n }\n /**\n * Execute the command for the given key binding.\n *\n * If the command is missing or disabled, a warning will be logged.\n */\n _executeKeyBinding(binding) {\n let { command, args } = binding;\n let newArgs = {\n _luminoEvent: { type: 'keybinding', keys: binding.keys },\n ...args\n };\n if (!this.hasCommand(command) || !this.isEnabled(command, newArgs)) {\n let word = this.hasCommand(command) ? 'enabled' : 'registered';\n let keys = binding.keys.join(', ');\n let msg1 = `Cannot execute key binding '${keys}':`;\n let msg2 = `command '${command}' is not ${word}.`;\n console.warn(`${msg1} ${msg2}`);\n return;\n }\n this.execute(command, newArgs);\n }\n /**\n * Clear the internal pending state.\n */\n _clearPendingState() {\n this._clearTimer();\n this._exactKeyMatch = null;\n this._keystrokes.length = 0;\n this._keydownEvents.length = 0;\n }\n /**\n * Handle the partial match timeout.\n */\n _onPendingTimeout() {\n this._timerID = 0;\n if (this._exactKeyMatch) {\n this._executeKeyBinding(this._exactKeyMatch);\n }\n else {\n this._replayKeydownEvents();\n }\n this._clearPendingState();\n }\n}\n/**\n * The namespace for the `CommandRegistry` class statics.\n */\n(function (CommandRegistry) {\n /**\n * Parse a keystroke into its constituent components.\n *\n * @param keystroke - The keystroke of interest.\n *\n * @returns The parsed components of the keystroke.\n *\n * #### Notes\n * The keystroke should be of the form:\n * `[ [ [ ]]]`\n *\n * The supported modifiers are: `Accel`, `Alt`, `Cmd`, `Ctrl`, and\n * `Shift`. The `Accel` modifier is translated to `Cmd` on Mac and\n * `Ctrl` on all other platforms.\n *\n * The parsing is tolerant and will not throw exceptions. Notably:\n * - Duplicate modifiers are ignored.\n * - Extra primary keys are ignored.\n * - The order of modifiers and primary key is irrelevant.\n * - The keystroke parts should be separated by whitespace.\n * - The keystroke is case sensitive.\n */\n function parseKeystroke(keystroke) {\n let key = '';\n let alt = false;\n let cmd = false;\n let ctrl = false;\n let shift = false;\n for (let token of keystroke.split(/\\s+/)) {\n if (token === 'Accel') {\n if (Platform.IS_MAC) {\n cmd = true;\n }\n else {\n ctrl = true;\n }\n }\n else if (token === 'Alt') {\n alt = true;\n }\n else if (token === 'Cmd') {\n cmd = true;\n }\n else if (token === 'Ctrl') {\n ctrl = true;\n }\n else if (token === 'Shift') {\n shift = true;\n }\n else if (token.length > 0) {\n key = token;\n }\n }\n return { cmd, ctrl, alt, shift, key };\n }\n CommandRegistry.parseKeystroke = parseKeystroke;\n /**\n * Normalize a keystroke into a canonical representation.\n *\n * @param keystroke - The keystroke of interest.\n *\n * @returns The normalized representation of the keystroke.\n *\n * #### Notes\n * This normalizes the keystroke by removing duplicate modifiers and\n * extra primary keys, and assembling the parts in a canonical order.\n *\n * The `Cmd` modifier is ignored on non-Mac platforms.\n */\n function normalizeKeystroke(keystroke) {\n let mods = '';\n let parts = parseKeystroke(keystroke);\n if (parts.ctrl) {\n mods += 'Ctrl ';\n }\n if (parts.alt) {\n mods += 'Alt ';\n }\n if (parts.shift) {\n mods += 'Shift ';\n }\n if (parts.cmd && Platform.IS_MAC) {\n mods += 'Cmd ';\n }\n return mods + parts.key;\n }\n CommandRegistry.normalizeKeystroke = normalizeKeystroke;\n /**\n * Get the platform-specific normalized keys for an options object.\n *\n * @param options - The options for the key binding.\n *\n * @returns Array of combined, normalized keys.\n */\n function normalizeKeys(options) {\n let keys;\n if (Platform.IS_WIN) {\n keys = options.winKeys || options.keys;\n }\n else if (Platform.IS_MAC) {\n keys = options.macKeys || options.keys;\n }\n else {\n keys = options.linuxKeys || options.keys;\n }\n return keys.map(normalizeKeystroke);\n }\n CommandRegistry.normalizeKeys = normalizeKeys;\n /**\n * Format keystrokes for display on the local system.\n *\n * If a list of keystrokes is provided, it will be displayed as\n * a comma-separated string\n *\n * @param keystroke The keystrokes to format\n * @returns The keystrokes representation\n */\n function formatKeystroke(keystroke) {\n return typeof keystroke === 'string'\n ? formatSingleKey(keystroke)\n : keystroke.map(formatSingleKey).join(', ');\n function formatSingleKey(key) {\n let mods = [];\n let separator = Platform.IS_MAC ? ' ' : '+';\n let parts = parseKeystroke(key);\n if (parts.ctrl) {\n mods.push('Ctrl');\n }\n if (parts.alt) {\n mods.push('Alt');\n }\n if (parts.shift) {\n mods.push('Shift');\n }\n if (Platform.IS_MAC && parts.cmd) {\n mods.push('Cmd');\n }\n mods.push(parts.key);\n return mods.map(Private.formatKey).join(separator);\n }\n }\n CommandRegistry.formatKeystroke = formatKeystroke;\n /**\n * Check if `'keydown'` event is caused by pressing a modifier key that should be ignored.\n *\n * @param event - The event object for a `'keydown'` event.\n *\n * @returns `true` if modifier key was pressed, `false` otherwise.\n */\n function isModifierKeyPressed(event) {\n let layout = getKeyboardLayout();\n let key = layout.keyForKeydownEvent(event);\n return layout.isModifierKey(key);\n }\n CommandRegistry.isModifierKeyPressed = isModifierKeyPressed;\n /**\n * Create a normalized keystroke for a `'keydown'` event.\n *\n * @param event - The event object for a `'keydown'` event.\n *\n * @returns A normalized keystroke, or an empty string if the event\n * does not represent a valid keystroke for the given layout.\n */\n function keystrokeForKeydownEvent(event) {\n let layout = getKeyboardLayout();\n let key = layout.keyForKeydownEvent(event);\n if (!key || layout.isModifierKey(key)) {\n return '';\n }\n let mods = [];\n if (event.ctrlKey) {\n mods.push('Ctrl');\n }\n if (event.altKey) {\n mods.push('Alt');\n }\n if (event.shiftKey) {\n mods.push('Shift');\n }\n if (event.metaKey && Platform.IS_MAC) {\n mods.push('Cmd');\n }\n mods.push(key);\n return mods.join(' ');\n }\n CommandRegistry.keystrokeForKeydownEvent = keystrokeForKeydownEvent;\n})(CommandRegistry || (CommandRegistry = {}));\n/**\n * The namespace for the module implementation details.\n */\nvar Private;\n(function (Private) {\n /**\n * The timeout in ms for triggering a key binding chord.\n */\n Private.CHORD_TIMEOUT = 1000;\n /**\n * Create a normalized command from an options object.\n */\n function createCommand(options) {\n return {\n execute: options.execute,\n describedBy: asFunc(typeof options.describedBy === 'function'\n ? options.describedBy\n : { args: null, ...options.describedBy }, () => {\n return { args: null };\n }),\n label: asFunc(options.label, emptyStringFunc),\n mnemonic: asFunc(options.mnemonic, negativeOneFunc),\n icon: asFunc(options.icon, undefinedFunc),\n iconClass: asFunc(options.iconClass, emptyStringFunc),\n iconLabel: asFunc(options.iconLabel, emptyStringFunc),\n caption: asFunc(options.caption, emptyStringFunc),\n usage: asFunc(options.usage, emptyStringFunc),\n className: asFunc(options.className, emptyStringFunc),\n dataset: asFunc(options.dataset, emptyDatasetFunc),\n isEnabled: options.isEnabled || trueFunc,\n isToggled: options.isToggled || falseFunc,\n isToggleable: options.isToggleable || !!options.isToggled,\n isVisible: options.isVisible || trueFunc\n };\n }\n Private.createCommand = createCommand;\n /**\n * Create a key binding object from key binding options.\n */\n function createKeyBinding(options) {\n return {\n keys: CommandRegistry.normalizeKeys(options),\n selector: validateSelector(options),\n command: options.command,\n args: options.args || JSONExt.emptyObject\n };\n }\n Private.createKeyBinding = createKeyBinding;\n /**\n * Find the key bindings which match a key sequence.\n *\n * This returns a match result which contains the best exact matching\n * binding, and a flag which indicates if there are partial matches.\n */\n function matchKeyBinding(bindings, keys, event) {\n // The current best exact match.\n let exact = null;\n // Whether a partial match has been found.\n let partial = false;\n // The match distance for the exact match.\n let distance = Infinity;\n // The specificity for the exact match.\n let specificity = 0;\n // Iterate over the bindings and search for the best match.\n for (let i = 0, n = bindings.length; i < n; ++i) {\n // Lookup the current binding.\n let binding = bindings[i];\n // Check whether the key binding sequence is a match.\n let sqm = matchSequence(binding.keys, keys);\n // If there is no match, the binding is ignored.\n if (sqm === 0 /* SequenceMatch.None */) {\n continue;\n }\n // If it is a partial match and no other partial match has been\n // found, ensure the selector matches and set the partial flag.\n if (sqm === 2 /* SequenceMatch.Partial */) {\n if (!partial && targetDistance(binding.selector, event) !== -1) {\n partial = true;\n }\n continue;\n }\n // Ignore the match if the selector doesn't match, or if the\n // matched node is farther away than the current best match.\n let td = targetDistance(binding.selector, event);\n if (td === -1 || td > distance) {\n continue;\n }\n // Get the specificity for the selector.\n let sp = Selector.calculateSpecificity(binding.selector);\n // Update the best match if this match is stronger.\n if (!exact || td < distance || sp >= specificity) {\n exact = binding;\n distance = td;\n specificity = sp;\n }\n }\n // Return the match result.\n return { exact, partial };\n }\n Private.matchKeyBinding = matchKeyBinding;\n /**\n * Replay a keyboard event.\n *\n * This synthetically dispatches a clone of the keyboard event.\n */\n function replayKeyEvent(event) {\n event.target.dispatchEvent(cloneKeyboardEvent(event));\n }\n Private.replayKeyEvent = replayKeyEvent;\n function formatKey(key) {\n if (Platform.IS_MAC) {\n return MAC_DISPLAY.hasOwnProperty(key) ? MAC_DISPLAY[key] : key;\n }\n else {\n return WIN_DISPLAY.hasOwnProperty(key) ? WIN_DISPLAY[key] : key;\n }\n }\n Private.formatKey = formatKey;\n const MAC_DISPLAY = {\n Backspace: '⌫',\n Tab: '⇥',\n Enter: '⏎',\n Shift: '⇧',\n Ctrl: '⌃',\n Alt: '⌥',\n Escape: '⎋',\n PageUp: '⇞',\n PageDown: '⇟',\n End: '↘',\n Home: '↖',\n ArrowLeft: '←',\n ArrowUp: '↑',\n ArrowRight: '→',\n ArrowDown: '↓',\n Delete: '⌦',\n Cmd: '⌘'\n };\n const WIN_DISPLAY = {\n Escape: 'Esc',\n PageUp: 'Page Up',\n PageDown: 'Page Down',\n ArrowLeft: 'Left',\n ArrowUp: 'Up',\n ArrowRight: 'Right',\n ArrowDown: 'Down',\n Delete: 'Del'\n };\n /**\n * A singleton empty string function.\n */\n const emptyStringFunc = () => '';\n /**\n * A singleton `-1` number function\n */\n const negativeOneFunc = () => -1;\n /**\n * A singleton true boolean function.\n */\n const trueFunc = () => true;\n /**\n * A singleton false boolean function.\n */\n const falseFunc = () => false;\n /**\n * A singleton empty dataset function.\n */\n const emptyDatasetFunc = () => ({});\n /**\n * A singleton undefined function\n */\n const undefinedFunc = () => undefined;\n /**\n * Cast a value or command func to a command func.\n */\n function asFunc(value, dfault) {\n if (value === undefined) {\n return dfault;\n }\n if (typeof value === 'function') {\n return value;\n }\n return () => value;\n }\n /**\n * Validate the selector for an options object.\n *\n * This returns the validated selector, or throws if the selector is\n * invalid or contains commas.\n */\n function validateSelector(options) {\n if (options.selector.indexOf(',') !== -1) {\n throw new Error(`Selector cannot contain commas: ${options.selector}`);\n }\n if (!Selector.isValid(options.selector)) {\n throw new Error(`Invalid selector: ${options.selector}`);\n }\n return options.selector;\n }\n /**\n * Test whether a key binding sequence matches a key sequence.\n *\n * Returns a `SequenceMatch` value indicating the type of match.\n */\n function matchSequence(bindKeys, userKeys) {\n if (bindKeys.length < userKeys.length) {\n return 0 /* SequenceMatch.None */;\n }\n for (let i = 0, n = userKeys.length; i < n; ++i) {\n if (bindKeys[i] !== userKeys[i]) {\n return 0 /* SequenceMatch.None */;\n }\n }\n if (bindKeys.length > userKeys.length) {\n return 2 /* SequenceMatch.Partial */;\n }\n return 1 /* SequenceMatch.Exact */;\n }\n /**\n * Find the distance from the target node to the first matching node.\n *\n * This traverses the event path from `target` to `currentTarget` and\n * computes the distance from `target` to the first node which matches\n * the CSS selector. If no match is found, `-1` is returned.\n */\n function targetDistance(selector, event) {\n let targ = event.target;\n let curr = event.currentTarget;\n for (let dist = 0; targ !== null; targ = targ.parentElement, ++dist) {\n if (targ.hasAttribute('data-lm-suppress-shortcuts')) {\n return -1;\n }\n if (Selector.matches(targ, selector)) {\n return dist;\n }\n if (targ === curr) {\n return -1;\n }\n }\n return -1;\n }\n /**\n * Clone a keyboard event.\n */\n function cloneKeyboardEvent(event) {\n // A custom event is required because Chrome nulls out the\n // `keyCode` field in user-generated `KeyboardEvent` types.\n let clone = document.createEvent('Event');\n let bubbles = event.bubbles || true;\n let cancelable = event.cancelable || true;\n clone.initEvent(event.type || 'keydown', bubbles, cancelable);\n clone.key = event.key || '';\n clone.keyCode = event.keyCode || 0;\n clone.which = event.keyCode || 0;\n clone.ctrlKey = event.ctrlKey || false;\n clone.altKey = event.altKey || false;\n clone.shiftKey = event.shiftKey || false;\n clone.metaKey = event.metaKey || false;\n clone.view = event.view || window;\n return clone;\n }\n})(Private || (Private = {}));\n\nexport { CommandRegistry };\n//# sourceMappingURL=index.es6.js.map\n","// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * The namespace for array-specific algorithms.\n */\nvar ArrayExt;\n(function (ArrayExt) {\n /**\n * Find the index of the first occurrence of a value in an array.\n *\n * @param array - The array-like object to search.\n *\n * @param value - The value to locate in the array. Values are\n * compared using strict `===` equality.\n *\n * @param start - The index of the first element in the range to be\n * searched, inclusive. The default value is `0`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @param stop - The index of the last element in the range to be\n * searched, inclusive. The default value is `-1`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @returns The index of the first occurrence of the value, or `-1`\n * if the value is not found.\n *\n * #### Notes\n * If `stop < start` the search will wrap at the end of the array.\n *\n * #### Complexity\n * Linear.\n *\n * #### Undefined Behavior\n * A `start` or `stop` which is non-integral.\n *\n * #### Example\n * ```typescript\n * import { ArrayExt } from '@lumino/algorithm';\n *\n * let data = ['one', 'two', 'three', 'four', 'one'];\n * ArrayExt.firstIndexOf(data, 'red'); // -1\n * ArrayExt.firstIndexOf(data, 'one'); // 0\n * ArrayExt.firstIndexOf(data, 'one', 1); // 4\n * ArrayExt.firstIndexOf(data, 'two', 2); // -1\n * ArrayExt.firstIndexOf(data, 'two', 2, 1); // 1\n * ```\n */\n function firstIndexOf(array, value, start = 0, stop = -1) {\n let n = array.length;\n if (n === 0) {\n return -1;\n }\n if (start < 0) {\n start = Math.max(0, start + n);\n }\n else {\n start = Math.min(start, n - 1);\n }\n if (stop < 0) {\n stop = Math.max(0, stop + n);\n }\n else {\n stop = Math.min(stop, n - 1);\n }\n let span;\n if (stop < start) {\n span = stop + 1 + (n - start);\n }\n else {\n span = stop - start + 1;\n }\n for (let i = 0; i < span; ++i) {\n let j = (start + i) % n;\n if (array[j] === value) {\n return j;\n }\n }\n return -1;\n }\n ArrayExt.firstIndexOf = firstIndexOf;\n /**\n * Find the index of the last occurrence of a value in an array.\n *\n * @param array - The array-like object to search.\n *\n * @param value - The value to locate in the array. Values are\n * compared using strict `===` equality.\n *\n * @param start - The index of the first element in the range to be\n * searched, inclusive. The default value is `-1`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @param stop - The index of the last element in the range to be\n * searched, inclusive. The default value is `0`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @returns The index of the last occurrence of the value, or `-1`\n * if the value is not found.\n *\n * #### Notes\n * If `start < stop` the search will wrap at the front of the array.\n *\n * #### Complexity\n * Linear.\n *\n * #### Undefined Behavior\n * A `start` or `stop` which is non-integral.\n *\n * #### Example\n * ```typescript\n * import { ArrayExt } from '@lumino/algorithm';\n *\n * let data = ['one', 'two', 'three', 'four', 'one'];\n * ArrayExt.lastIndexOf(data, 'red'); // -1\n * ArrayExt.lastIndexOf(data, 'one'); // 4\n * ArrayExt.lastIndexOf(data, 'one', 1); // 0\n * ArrayExt.lastIndexOf(data, 'two', 0); // -1\n * ArrayExt.lastIndexOf(data, 'two', 0, 1); // 1\n * ```\n */\n function lastIndexOf(array, value, start = -1, stop = 0) {\n let n = array.length;\n if (n === 0) {\n return -1;\n }\n if (start < 0) {\n start = Math.max(0, start + n);\n }\n else {\n start = Math.min(start, n - 1);\n }\n if (stop < 0) {\n stop = Math.max(0, stop + n);\n }\n else {\n stop = Math.min(stop, n - 1);\n }\n let span;\n if (start < stop) {\n span = start + 1 + (n - stop);\n }\n else {\n span = start - stop + 1;\n }\n for (let i = 0; i < span; ++i) {\n let j = (start - i + n) % n;\n if (array[j] === value) {\n return j;\n }\n }\n return -1;\n }\n ArrayExt.lastIndexOf = lastIndexOf;\n /**\n * Find the index of the first value which matches a predicate.\n *\n * @param array - The array-like object to search.\n *\n * @param fn - The predicate function to apply to the values.\n *\n * @param start - The index of the first element in the range to be\n * searched, inclusive. The default value is `0`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @param stop - The index of the last element in the range to be\n * searched, inclusive. The default value is `-1`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @returns The index of the first matching value, or `-1` if no\n * matching value is found.\n *\n * #### Notes\n * If `stop < start` the search will wrap at the end of the array.\n *\n * #### Complexity\n * Linear.\n *\n * #### Undefined Behavior\n * A `start` or `stop` which is non-integral.\n *\n * Modifying the length of the array while searching.\n *\n * #### Example\n * ```typescript\n * import { ArrayExt } from '@lumino/algorithm';\n *\n * function isEven(value: number): boolean {\n * return value % 2 === 0;\n * }\n *\n * let data = [1, 2, 3, 4, 3, 2, 1];\n * ArrayExt.findFirstIndex(data, isEven); // 1\n * ArrayExt.findFirstIndex(data, isEven, 4); // 5\n * ArrayExt.findFirstIndex(data, isEven, 6); // -1\n * ArrayExt.findFirstIndex(data, isEven, 6, 5); // 1\n * ```\n */\n function findFirstIndex(array, fn, start = 0, stop = -1) {\n let n = array.length;\n if (n === 0) {\n return -1;\n }\n if (start < 0) {\n start = Math.max(0, start + n);\n }\n else {\n start = Math.min(start, n - 1);\n }\n if (stop < 0) {\n stop = Math.max(0, stop + n);\n }\n else {\n stop = Math.min(stop, n - 1);\n }\n let span;\n if (stop < start) {\n span = stop + 1 + (n - start);\n }\n else {\n span = stop - start + 1;\n }\n for (let i = 0; i < span; ++i) {\n let j = (start + i) % n;\n if (fn(array[j], j)) {\n return j;\n }\n }\n return -1;\n }\n ArrayExt.findFirstIndex = findFirstIndex;\n /**\n * Find the index of the last value which matches a predicate.\n *\n * @param object - The array-like object to search.\n *\n * @param fn - The predicate function to apply to the values.\n *\n * @param start - The index of the first element in the range to be\n * searched, inclusive. The default value is `-1`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @param stop - The index of the last element in the range to be\n * searched, inclusive. The default value is `0`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @returns The index of the last matching value, or `-1` if no\n * matching value is found.\n *\n * #### Notes\n * If `start < stop` the search will wrap at the front of the array.\n *\n * #### Complexity\n * Linear.\n *\n * #### Undefined Behavior\n * A `start` or `stop` which is non-integral.\n *\n * Modifying the length of the array while searching.\n *\n * #### Example\n * ```typescript\n * import { ArrayExt } from '@lumino/algorithm';\n *\n * function isEven(value: number): boolean {\n * return value % 2 === 0;\n * }\n *\n * let data = [1, 2, 3, 4, 3, 2, 1];\n * ArrayExt.findLastIndex(data, isEven); // 5\n * ArrayExt.findLastIndex(data, isEven, 4); // 3\n * ArrayExt.findLastIndex(data, isEven, 0); // -1\n * ArrayExt.findLastIndex(data, isEven, 0, 1); // 5\n * ```\n */\n function findLastIndex(array, fn, start = -1, stop = 0) {\n let n = array.length;\n if (n === 0) {\n return -1;\n }\n if (start < 0) {\n start = Math.max(0, start + n);\n }\n else {\n start = Math.min(start, n - 1);\n }\n if (stop < 0) {\n stop = Math.max(0, stop + n);\n }\n else {\n stop = Math.min(stop, n - 1);\n }\n let d;\n if (start < stop) {\n d = start + 1 + (n - stop);\n }\n else {\n d = start - stop + 1;\n }\n for (let i = 0; i < d; ++i) {\n let j = (start - i + n) % n;\n if (fn(array[j], j)) {\n return j;\n }\n }\n return -1;\n }\n ArrayExt.findLastIndex = findLastIndex;\n /**\n * Find the first value which matches a predicate.\n *\n * @param array - The array-like object to search.\n *\n * @param fn - The predicate function to apply to the values.\n *\n * @param start - The index of the first element in the range to be\n * searched, inclusive. The default value is `0`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @param stop - The index of the last element in the range to be\n * searched, inclusive. The default value is `-1`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @returns The first matching value, or `undefined` if no matching\n * value is found.\n *\n * #### Notes\n * If `stop < start` the search will wrap at the end of the array.\n *\n * #### Complexity\n * Linear.\n *\n * #### Undefined Behavior\n * A `start` or `stop` which is non-integral.\n *\n * Modifying the length of the array while searching.\n *\n * #### Example\n * ```typescript\n * import { ArrayExt } from '@lumino/algorithm';\n *\n * function isEven(value: number): boolean {\n * return value % 2 === 0;\n * }\n *\n * let data = [1, 2, 3, 4, 3, 2, 1];\n * ArrayExt.findFirstValue(data, isEven); // 2\n * ArrayExt.findFirstValue(data, isEven, 2); // 4\n * ArrayExt.findFirstValue(data, isEven, 6); // undefined\n * ArrayExt.findFirstValue(data, isEven, 6, 5); // 2\n * ```\n */\n function findFirstValue(array, fn, start = 0, stop = -1) {\n let index = findFirstIndex(array, fn, start, stop);\n return index !== -1 ? array[index] : undefined;\n }\n ArrayExt.findFirstValue = findFirstValue;\n /**\n * Find the last value which matches a predicate.\n *\n * @param object - The array-like object to search.\n *\n * @param fn - The predicate function to apply to the values.\n *\n * @param start - The index of the first element in the range to be\n * searched, inclusive. The default value is `-1`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @param stop - The index of the last element in the range to be\n * searched, inclusive. The default value is `0`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @returns The last matching value, or `undefined` if no matching\n * value is found.\n *\n * #### Notes\n * If `start < stop` the search will wrap at the front of the array.\n *\n * #### Complexity\n * Linear.\n *\n * #### Undefined Behavior\n * A `start` or `stop` which is non-integral.\n *\n * Modifying the length of the array while searching.\n *\n * #### Example\n * ```typescript\n * import { ArrayExt } from '@lumino/algorithm';\n *\n * function isEven(value: number): boolean {\n * return value % 2 === 0;\n * }\n *\n * let data = [1, 2, 3, 4, 3, 2, 1];\n * ArrayExt.findLastValue(data, isEven); // 2\n * ArrayExt.findLastValue(data, isEven, 4); // 4\n * ArrayExt.findLastValue(data, isEven, 0); // undefined\n * ArrayExt.findLastValue(data, isEven, 0, 1); // 2\n * ```\n */\n function findLastValue(array, fn, start = -1, stop = 0) {\n let index = findLastIndex(array, fn, start, stop);\n return index !== -1 ? array[index] : undefined;\n }\n ArrayExt.findLastValue = findLastValue;\n /**\n * Find the index of the first element which compares `>=` to a value.\n *\n * @param array - The sorted array-like object to search.\n *\n * @param value - The value to locate in the array.\n *\n * @param fn - The 3-way comparison function to apply to the values.\n * It should return `< 0` if an element is less than a value, `0` if\n * an element is equal to a value, or `> 0` if an element is greater\n * than a value.\n *\n * @param start - The index of the first element in the range to be\n * searched, inclusive. The default value is `0`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @param stop - The index of the last element in the range to be\n * searched, inclusive. The default value is `-1`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @returns The index of the first element which compares `>=` to the\n * value, or `length` if there is no such element. If the computed\n * index for `stop` is less than `start`, then the computed index\n * for `start` is returned.\n *\n * #### Notes\n * The array must already be sorted in ascending order according to\n * the comparison function.\n *\n * #### Complexity\n * Logarithmic.\n *\n * #### Undefined Behavior\n * Searching a range which is not sorted in ascending order.\n *\n * A `start` or `stop` which is non-integral.\n *\n * Modifying the length of the array while searching.\n *\n * #### Example\n * ```typescript\n * import { ArrayExt } from '@lumino/algorithm';\n *\n * function numberCmp(a: number, b: number): number {\n * return a - b;\n * }\n *\n * let data = [0, 3, 4, 7, 7, 9];\n * ArrayExt.lowerBound(data, 0, numberCmp); // 0\n * ArrayExt.lowerBound(data, 6, numberCmp); // 3\n * ArrayExt.lowerBound(data, 7, numberCmp); // 3\n * ArrayExt.lowerBound(data, -1, numberCmp); // 0\n * ArrayExt.lowerBound(data, 10, numberCmp); // 6\n * ```\n */\n function lowerBound(array, value, fn, start = 0, stop = -1) {\n let n = array.length;\n if (n === 0) {\n return 0;\n }\n if (start < 0) {\n start = Math.max(0, start + n);\n }\n else {\n start = Math.min(start, n - 1);\n }\n if (stop < 0) {\n stop = Math.max(0, stop + n);\n }\n else {\n stop = Math.min(stop, n - 1);\n }\n let begin = start;\n let span = stop - start + 1;\n while (span > 0) {\n let half = span >> 1;\n let middle = begin + half;\n if (fn(array[middle], value) < 0) {\n begin = middle + 1;\n span -= half + 1;\n }\n else {\n span = half;\n }\n }\n return begin;\n }\n ArrayExt.lowerBound = lowerBound;\n /**\n * Find the index of the first element which compares `>` than a value.\n *\n * @param array - The sorted array-like object to search.\n *\n * @param value - The value to locate in the array.\n *\n * @param fn - The 3-way comparison function to apply to the values.\n * It should return `< 0` if an element is less than a value, `0` if\n * an element is equal to a value, or `> 0` if an element is greater\n * than a value.\n *\n * @param start - The index of the first element in the range to be\n * searched, inclusive. The default value is `0`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @param stop - The index of the last element in the range to be\n * searched, inclusive. The default value is `-1`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @returns The index of the first element which compares `>` than the\n * value, or `length` if there is no such element. If the computed\n * index for `stop` is less than `start`, then the computed index\n * for `start` is returned.\n *\n * #### Notes\n * The array must already be sorted in ascending order according to\n * the comparison function.\n *\n * #### Complexity\n * Logarithmic.\n *\n * #### Undefined Behavior\n * Searching a range which is not sorted in ascending order.\n *\n * A `start` or `stop` which is non-integral.\n *\n * Modifying the length of the array while searching.\n *\n * #### Example\n * ```typescript\n * import { ArrayExt } from '@lumino/algorithm';\n *\n * function numberCmp(a: number, b: number): number {\n * return a - b;\n * }\n *\n * let data = [0, 3, 4, 7, 7, 9];\n * ArrayExt.upperBound(data, 0, numberCmp); // 1\n * ArrayExt.upperBound(data, 6, numberCmp); // 3\n * ArrayExt.upperBound(data, 7, numberCmp); // 5\n * ArrayExt.upperBound(data, -1, numberCmp); // 0\n * ArrayExt.upperBound(data, 10, numberCmp); // 6\n * ```\n */\n function upperBound(array, value, fn, start = 0, stop = -1) {\n let n = array.length;\n if (n === 0) {\n return 0;\n }\n if (start < 0) {\n start = Math.max(0, start + n);\n }\n else {\n start = Math.min(start, n - 1);\n }\n if (stop < 0) {\n stop = Math.max(0, stop + n);\n }\n else {\n stop = Math.min(stop, n - 1);\n }\n let begin = start;\n let span = stop - start + 1;\n while (span > 0) {\n let half = span >> 1;\n let middle = begin + half;\n if (fn(array[middle], value) > 0) {\n span = half;\n }\n else {\n begin = middle + 1;\n span -= half + 1;\n }\n }\n return begin;\n }\n ArrayExt.upperBound = upperBound;\n /**\n * Test whether two arrays are shallowly equal.\n *\n * @param a - The first array-like object to compare.\n *\n * @param b - The second array-like object to compare.\n *\n * @param fn - The comparison function to apply to the elements. It\n * should return `true` if the elements are \"equal\". The default\n * compares elements using strict `===` equality.\n *\n * @returns Whether the two arrays are shallowly equal.\n *\n * #### Complexity\n * Linear.\n *\n * #### Undefined Behavior\n * Modifying the length of the arrays while comparing.\n *\n * #### Example\n * ```typescript\n * import { ArrayExt } from '@lumino/algorithm';\n *\n * let d1 = [0, 3, 4, 7, 7, 9];\n * let d2 = [0, 3, 4, 7, 7, 9];\n * let d3 = [42];\n * ArrayExt.shallowEqual(d1, d2); // true\n * ArrayExt.shallowEqual(d2, d3); // false\n * ```\n */\n function shallowEqual(a, b, fn) {\n // Check for object identity first.\n if (a === b) {\n return true;\n }\n // Bail early if the lengths are different.\n if (a.length !== b.length) {\n return false;\n }\n // Compare each element for equality.\n for (let i = 0, n = a.length; i < n; ++i) {\n if (fn ? !fn(a[i], b[i]) : a[i] !== b[i]) {\n return false;\n }\n }\n // The array are shallowly equal.\n return true;\n }\n ArrayExt.shallowEqual = shallowEqual;\n /**\n * Create a slice of an array subject to an optional step.\n *\n * @param array - The array-like object of interest.\n *\n * @param options - The options for configuring the slice.\n *\n * @returns A new array with the specified values.\n *\n * @throws An exception if the slice `step` is `0`.\n *\n * #### Complexity\n * Linear.\n *\n * #### Undefined Behavior\n * A `start`, `stop`, or `step` which is non-integral.\n *\n * #### Example\n * ```typescript\n * import { ArrayExt } from '@lumino/algorithm';\n *\n * let data = [0, 3, 4, 7, 7, 9];\n * ArrayExt.slice(data); // [0, 3, 4, 7, 7, 9]\n * ArrayExt.slice(data, { start: 2 }); // [4, 7, 7, 9]\n * ArrayExt.slice(data, { start: 0, stop: 4 }); // [0, 3, 4, 7]\n * ArrayExt.slice(data, { step: 2 }); // [0, 4, 7]\n * ArrayExt.slice(data, { step: -1 }); // [9, 7, 7, 4, 3, 0]\n * ```\n */\n function slice(array, options = {}) {\n // Extract the options.\n let { start, stop, step } = options;\n // Set up the `step` value.\n if (step === undefined) {\n step = 1;\n }\n // Validate the step size.\n if (step === 0) {\n throw new Error('Slice `step` cannot be zero.');\n }\n // Look up the length of the array.\n let n = array.length;\n // Set up the `start` value.\n if (start === undefined) {\n start = step < 0 ? n - 1 : 0;\n }\n else if (start < 0) {\n start = Math.max(start + n, step < 0 ? -1 : 0);\n }\n else if (start >= n) {\n start = step < 0 ? n - 1 : n;\n }\n // Set up the `stop` value.\n if (stop === undefined) {\n stop = step < 0 ? -1 : n;\n }\n else if (stop < 0) {\n stop = Math.max(stop + n, step < 0 ? -1 : 0);\n }\n else if (stop >= n) {\n stop = step < 0 ? n - 1 : n;\n }\n // Compute the slice length.\n let length;\n if ((step < 0 && stop >= start) || (step > 0 && start >= stop)) {\n length = 0;\n }\n else if (step < 0) {\n length = Math.floor((stop - start + 1) / step + 1);\n }\n else {\n length = Math.floor((stop - start - 1) / step + 1);\n }\n // Compute the sliced result.\n let result = [];\n for (let i = 0; i < length; ++i) {\n result[i] = array[start + i * step];\n }\n // Return the result.\n return result;\n }\n ArrayExt.slice = slice;\n /**\n * Move an element in an array from one index to another.\n *\n * @param array - The mutable array-like object of interest.\n *\n * @param fromIndex - The index of the element to move. Negative\n * values are taken as an offset from the end of the array.\n *\n * @param toIndex - The target index of the element. Negative\n * values are taken as an offset from the end of the array.\n *\n * #### Complexity\n * Linear.\n *\n * #### Undefined Behavior\n * A `fromIndex` or `toIndex` which is non-integral.\n *\n * #### Example\n * ```typescript\n * import { ArrayExt } from from '@lumino/algorithm';\n *\n * let data = [0, 1, 2, 3, 4];\n * ArrayExt.move(data, 1, 2); // [0, 2, 1, 3, 4]\n * ArrayExt.move(data, 4, 2); // [0, 2, 4, 1, 3]\n * ```\n */\n function move(array, fromIndex, toIndex) {\n let n = array.length;\n if (n <= 1) {\n return;\n }\n if (fromIndex < 0) {\n fromIndex = Math.max(0, fromIndex + n);\n }\n else {\n fromIndex = Math.min(fromIndex, n - 1);\n }\n if (toIndex < 0) {\n toIndex = Math.max(0, toIndex + n);\n }\n else {\n toIndex = Math.min(toIndex, n - 1);\n }\n if (fromIndex === toIndex) {\n return;\n }\n let value = array[fromIndex];\n let d = fromIndex < toIndex ? 1 : -1;\n for (let i = fromIndex; i !== toIndex; i += d) {\n array[i] = array[i + d];\n }\n array[toIndex] = value;\n }\n ArrayExt.move = move;\n /**\n * Reverse an array in-place.\n *\n * @param array - The mutable array-like object of interest.\n *\n * @param start - The index of the first element in the range to be\n * reversed, inclusive. The default value is `0`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @param stop - The index of the last element in the range to be\n * reversed, inclusive. The default value is `-1`. Negative values\n * are taken as an offset from the end of the array.\n *\n * #### Complexity\n * Linear.\n *\n * #### Undefined Behavior\n * A `start` or `stop` index which is non-integral.\n *\n * #### Example\n * ```typescript\n * import { ArrayExt } from '@lumino/algorithm';\n *\n * let data = [0, 1, 2, 3, 4];\n * ArrayExt.reverse(data, 1, 3); // [0, 3, 2, 1, 4]\n * ArrayExt.reverse(data, 3); // [0, 3, 2, 4, 1]\n * ArrayExt.reverse(data); // [1, 4, 2, 3, 0]\n * ```\n */\n function reverse(array, start = 0, stop = -1) {\n let n = array.length;\n if (n <= 1) {\n return;\n }\n if (start < 0) {\n start = Math.max(0, start + n);\n }\n else {\n start = Math.min(start, n - 1);\n }\n if (stop < 0) {\n stop = Math.max(0, stop + n);\n }\n else {\n stop = Math.min(stop, n - 1);\n }\n while (start < stop) {\n let a = array[start];\n let b = array[stop];\n array[start++] = b;\n array[stop--] = a;\n }\n }\n ArrayExt.reverse = reverse;\n /**\n * Rotate the elements of an array in-place.\n *\n * @param array - The mutable array-like object of interest.\n *\n * @param delta - The amount of rotation to apply to the elements. A\n * positive value will rotate the elements to the left. A negative\n * value will rotate the elements to the right.\n *\n * @param start - The index of the first element in the range to be\n * rotated, inclusive. The default value is `0`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @param stop - The index of the last element in the range to be\n * rotated, inclusive. The default value is `-1`. Negative values\n * are taken as an offset from the end of the array.\n *\n * #### Complexity\n * Linear.\n *\n * #### Undefined Behavior\n * A `delta`, `start`, or `stop` which is non-integral.\n *\n * #### Example\n * ```typescript\n * import { ArrayExt } from '@lumino/algorithm';\n *\n * let data = [0, 1, 2, 3, 4];\n * ArrayExt.rotate(data, 2); // [2, 3, 4, 0, 1]\n * ArrayExt.rotate(data, -2); // [0, 1, 2, 3, 4]\n * ArrayExt.rotate(data, 10); // [0, 1, 2, 3, 4]\n * ArrayExt.rotate(data, 9); // [4, 0, 1, 2, 3]\n * ArrayExt.rotate(data, 2, 1, 3); // [4, 2, 0, 1, 3]\n * ```\n */\n function rotate(array, delta, start = 0, stop = -1) {\n let n = array.length;\n if (n <= 1) {\n return;\n }\n if (start < 0) {\n start = Math.max(0, start + n);\n }\n else {\n start = Math.min(start, n - 1);\n }\n if (stop < 0) {\n stop = Math.max(0, stop + n);\n }\n else {\n stop = Math.min(stop, n - 1);\n }\n if (start >= stop) {\n return;\n }\n let length = stop - start + 1;\n if (delta > 0) {\n delta = delta % length;\n }\n else if (delta < 0) {\n delta = ((delta % length) + length) % length;\n }\n if (delta === 0) {\n return;\n }\n let pivot = start + delta;\n reverse(array, start, pivot - 1);\n reverse(array, pivot, stop);\n reverse(array, start, stop);\n }\n ArrayExt.rotate = rotate;\n /**\n * Fill an array with a static value.\n *\n * @param array - The mutable array-like object to fill.\n *\n * @param value - The static value to use to fill the array.\n *\n * @param start - The index of the first element in the range to be\n * filled, inclusive. The default value is `0`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @param stop - The index of the last element in the range to be\n * filled, inclusive. The default value is `-1`. Negative values\n * are taken as an offset from the end of the array.\n *\n * #### Notes\n * If `stop < start` the fill will wrap at the end of the array.\n *\n * #### Complexity\n * Linear.\n *\n * #### Undefined Behavior\n * A `start` or `stop` which is non-integral.\n *\n * #### Example\n * ```typescript\n * import { ArrayExt } from '@lumino/algorithm';\n *\n * let data = ['one', 'two', 'three', 'four'];\n * ArrayExt.fill(data, 'r'); // ['r', 'r', 'r', 'r']\n * ArrayExt.fill(data, 'g', 1); // ['r', 'g', 'g', 'g']\n * ArrayExt.fill(data, 'b', 2, 3); // ['r', 'g', 'b', 'b']\n * ArrayExt.fill(data, 'z', 3, 1); // ['z', 'z', 'b', 'z']\n * ```\n */\n function fill(array, value, start = 0, stop = -1) {\n let n = array.length;\n if (n === 0) {\n return;\n }\n if (start < 0) {\n start = Math.max(0, start + n);\n }\n else {\n start = Math.min(start, n - 1);\n }\n if (stop < 0) {\n stop = Math.max(0, stop + n);\n }\n else {\n stop = Math.min(stop, n - 1);\n }\n let span;\n if (stop < start) {\n span = stop + 1 + (n - start);\n }\n else {\n span = stop - start + 1;\n }\n for (let i = 0; i < span; ++i) {\n array[(start + i) % n] = value;\n }\n }\n ArrayExt.fill = fill;\n /**\n * Insert a value into an array at a specific index.\n *\n * @param array - The array of interest.\n *\n * @param index - The index at which to insert the value. Negative\n * values are taken as an offset from the end of the array.\n *\n * @param value - The value to set at the specified index.\n *\n * #### Complexity\n * Linear.\n *\n * #### Undefined Behavior\n * An `index` which is non-integral.\n *\n * #### Example\n * ```typescript\n * import { ArrayExt } from '@lumino/algorithm';\n *\n * let data = [0, 1, 2];\n * ArrayExt.insert(data, 0, -1); // [-1, 0, 1, 2]\n * ArrayExt.insert(data, 2, 12); // [-1, 0, 12, 1, 2]\n * ArrayExt.insert(data, -1, 7); // [-1, 0, 12, 1, 7, 2]\n * ArrayExt.insert(data, 6, 19); // [-1, 0, 12, 1, 7, 2, 19]\n * ```\n */\n function insert(array, index, value) {\n let n = array.length;\n if (index < 0) {\n index = Math.max(0, index + n);\n }\n else {\n index = Math.min(index, n);\n }\n for (let i = n; i > index; --i) {\n array[i] = array[i - 1];\n }\n array[index] = value;\n }\n ArrayExt.insert = insert;\n /**\n * Remove and return a value at a specific index in an array.\n *\n * @param array - The array of interest.\n *\n * @param index - The index of the value to remove. Negative values\n * are taken as an offset from the end of the array.\n *\n * @returns The value at the specified index, or `undefined` if the\n * index is out of range.\n *\n * #### Complexity\n * Linear.\n *\n * #### Undefined Behavior\n * An `index` which is non-integral.\n *\n * #### Example\n * ```typescript\n * import { ArrayExt } from '@lumino/algorithm';\n *\n * let data = [0, 12, 23, 39, 14, 12, 75];\n * ArrayExt.removeAt(data, 2); // 23\n * ArrayExt.removeAt(data, -2); // 12\n * ArrayExt.removeAt(data, 10); // undefined;\n * ```\n */\n function removeAt(array, index) {\n let n = array.length;\n if (index < 0) {\n index += n;\n }\n if (index < 0 || index >= n) {\n return undefined;\n }\n let value = array[index];\n for (let i = index + 1; i < n; ++i) {\n array[i - 1] = array[i];\n }\n array.length = n - 1;\n return value;\n }\n ArrayExt.removeAt = removeAt;\n /**\n * Remove the first occurrence of a value from an array.\n *\n * @param array - The array of interest.\n *\n * @param value - The value to remove from the array. Values are\n * compared using strict `===` equality.\n *\n * @param start - The index of the first element in the range to be\n * searched, inclusive. The default value is `0`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @param stop - The index of the last element in the range to be\n * searched, inclusive. The default value is `-1`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @returns The index of the removed value, or `-1` if the value\n * is not contained in the array.\n *\n * #### Notes\n * If `stop < start` the search will wrap at the end of the array.\n *\n * #### Complexity\n * Linear.\n *\n * #### Example\n * ```typescript\n * import { ArrayExt } from '@lumino/algorithm';\n *\n * let data = [0, 12, 23, 39, 14, 12, 75];\n * ArrayExt.removeFirstOf(data, 12); // 1\n * ArrayExt.removeFirstOf(data, 17); // -1\n * ArrayExt.removeFirstOf(data, 39, 3); // -1\n * ArrayExt.removeFirstOf(data, 39, 3, 2); // 2\n * ```\n */\n function removeFirstOf(array, value, start = 0, stop = -1) {\n let index = firstIndexOf(array, value, start, stop);\n if (index !== -1) {\n removeAt(array, index);\n }\n return index;\n }\n ArrayExt.removeFirstOf = removeFirstOf;\n /**\n * Remove the last occurrence of a value from an array.\n *\n * @param array - The array of interest.\n *\n * @param value - The value to remove from the array. Values are\n * compared using strict `===` equality.\n *\n * @param start - The index of the first element in the range to be\n * searched, inclusive. The default value is `-1`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @param stop - The index of the last element in the range to be\n * searched, inclusive. The default value is `0`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @returns The index of the removed value, or `-1` if the value\n * is not contained in the array.\n *\n * #### Notes\n * If `start < stop` the search will wrap at the end of the array.\n *\n * #### Complexity\n * Linear.\n *\n * #### Example\n * ```typescript\n * import { ArrayExt } from '@lumino/algorithm';\n *\n * let data = [0, 12, 23, 39, 14, 12, 75];\n * ArrayExt.removeLastOf(data, 12); // 5\n * ArrayExt.removeLastOf(data, 17); // -1\n * ArrayExt.removeLastOf(data, 39, 2); // -1\n * ArrayExt.removeLastOf(data, 39, 2, 3); // 3\n * ```\n */\n function removeLastOf(array, value, start = -1, stop = 0) {\n let index = lastIndexOf(array, value, start, stop);\n if (index !== -1) {\n removeAt(array, index);\n }\n return index;\n }\n ArrayExt.removeLastOf = removeLastOf;\n /**\n * Remove all occurrences of a value from an array.\n *\n * @param array - The array of interest.\n *\n * @param value - The value to remove from the array. Values are\n * compared using strict `===` equality.\n *\n * @param start - The index of the first element in the range to be\n * searched, inclusive. The default value is `0`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @param stop - The index of the last element in the range to be\n * searched, inclusive. The default value is `-1`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @returns The number of elements removed from the array.\n *\n * #### Notes\n * If `stop < start` the search will conceptually wrap at the end of\n * the array, however the array will be traversed front-to-back.\n *\n * #### Complexity\n * Linear.\n *\n * #### Example\n * ```typescript\n * import { ArrayExt } from '@lumino/algorithm';\n *\n * let data = [14, 12, 23, 39, 14, 12, 19, 14];\n * ArrayExt.removeAllOf(data, 12); // 2\n * ArrayExt.removeAllOf(data, 17); // 0\n * ArrayExt.removeAllOf(data, 14, 1, 4); // 1\n * ```\n */\n function removeAllOf(array, value, start = 0, stop = -1) {\n let n = array.length;\n if (n === 0) {\n return 0;\n }\n if (start < 0) {\n start = Math.max(0, start + n);\n }\n else {\n start = Math.min(start, n - 1);\n }\n if (stop < 0) {\n stop = Math.max(0, stop + n);\n }\n else {\n stop = Math.min(stop, n - 1);\n }\n let count = 0;\n for (let i = 0; i < n; ++i) {\n if (start <= stop && i >= start && i <= stop && array[i] === value) {\n count++;\n }\n else if (stop < start &&\n (i <= stop || i >= start) &&\n array[i] === value) {\n count++;\n }\n else if (count > 0) {\n array[i - count] = array[i];\n }\n }\n if (count > 0) {\n array.length = n - count;\n }\n return count;\n }\n ArrayExt.removeAllOf = removeAllOf;\n /**\n * Remove the first occurrence of a value which matches a predicate.\n *\n * @param array - The array of interest.\n *\n * @param fn - The predicate function to apply to the values.\n *\n * @param start - The index of the first element in the range to be\n * searched, inclusive. The default value is `0`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @param stop - The index of the last element in the range to be\n * searched, inclusive. The default value is `-1`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @returns The removed `{ index, value }`, which will be `-1` and\n * `undefined` if the value is not contained in the array.\n *\n * #### Notes\n * If `stop < start` the search will wrap at the end of the array.\n *\n * #### Complexity\n * Linear.\n *\n * #### Example\n * ```typescript\n * import { ArrayExt } from '@lumino/algorithm';\n *\n * function isEven(value: number): boolean {\n * return value % 2 === 0;\n * }\n *\n * let data = [0, 12, 23, 39, 14, 12, 75];\n * ArrayExt.removeFirstWhere(data, isEven); // { index: 0, value: 0 }\n * ArrayExt.removeFirstWhere(data, isEven, 2); // { index: 3, value: 14 }\n * ArrayExt.removeFirstWhere(data, isEven, 4); // { index: -1, value: undefined }\n * ```\n */\n function removeFirstWhere(array, fn, start = 0, stop = -1) {\n let value;\n let index = findFirstIndex(array, fn, start, stop);\n if (index !== -1) {\n value = removeAt(array, index);\n }\n return { index, value };\n }\n ArrayExt.removeFirstWhere = removeFirstWhere;\n /**\n * Remove the last occurrence of a value which matches a predicate.\n *\n * @param array - The array of interest.\n *\n * @param fn - The predicate function to apply to the values.\n *\n * @param start - The index of the first element in the range to be\n * searched, inclusive. The default value is `-1`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @param stop - The index of the last element in the range to be\n * searched, inclusive. The default value is `0`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @returns The removed `{ index, value }`, which will be `-1` and\n * `undefined` if the value is not contained in the array.\n *\n * #### Notes\n * If `start < stop` the search will wrap at the end of the array.\n *\n * #### Complexity\n * Linear.\n *\n * #### Example\n * ```typescript\n * import { ArrayExt } from '@lumino/algorithm';\n *\n * function isEven(value: number): boolean {\n * return value % 2 === 0;\n * }\n *\n * let data = [0, 12, 23, 39, 14, 12, 75];\n * ArrayExt.removeLastWhere(data, isEven); // { index: 5, value: 12 }\n * ArrayExt.removeLastWhere(data, isEven, 2); // { index: 1, value: 12 }\n * ArrayExt.removeLastWhere(data, isEven, 2, 1); // { index: -1, value: undefined }\n * ```\n */\n function removeLastWhere(array, fn, start = -1, stop = 0) {\n let value;\n let index = findLastIndex(array, fn, start, stop);\n if (index !== -1) {\n value = removeAt(array, index);\n }\n return { index, value };\n }\n ArrayExt.removeLastWhere = removeLastWhere;\n /**\n * Remove all occurrences of values which match a predicate.\n *\n * @param array - The array of interest.\n *\n * @param fn - The predicate function to apply to the values.\n *\n * @param start - The index of the first element in the range to be\n * searched, inclusive. The default value is `0`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @param stop - The index of the last element in the range to be\n * searched, inclusive. The default value is `-1`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @returns The number of elements removed from the array.\n *\n * #### Notes\n * If `stop < start` the search will conceptually wrap at the end of\n * the array, however the array will be traversed front-to-back.\n *\n * #### Complexity\n * Linear.\n *\n * #### Example\n * ```typescript\n * import { ArrayExt } from '@lumino/algorithm';\n *\n * function isEven(value: number): boolean {\n * return value % 2 === 0;\n * }\n *\n * function isNegative(value: number): boolean {\n * return value < 0;\n * }\n *\n * let data = [0, 12, -13, -9, 23, 39, 14, -15, 12, 75];\n * ArrayExt.removeAllWhere(data, isEven); // 4\n * ArrayExt.removeAllWhere(data, isNegative, 0, 3); // 2\n * ```\n */\n function removeAllWhere(array, fn, start = 0, stop = -1) {\n let n = array.length;\n if (n === 0) {\n return 0;\n }\n if (start < 0) {\n start = Math.max(0, start + n);\n }\n else {\n start = Math.min(start, n - 1);\n }\n if (stop < 0) {\n stop = Math.max(0, stop + n);\n }\n else {\n stop = Math.min(stop, n - 1);\n }\n let count = 0;\n for (let i = 0; i < n; ++i) {\n if (start <= stop && i >= start && i <= stop && fn(array[i], i)) {\n count++;\n }\n else if (stop < start && (i <= stop || i >= start) && fn(array[i], i)) {\n count++;\n }\n else if (count > 0) {\n array[i - count] = array[i];\n }\n }\n if (count > 0) {\n array.length = n - count;\n }\n return count;\n }\n ArrayExt.removeAllWhere = removeAllWhere;\n})(ArrayExt || (ArrayExt = {}));\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * Chain together several iterables.\n *\n * @deprecated\n *\n * @param objects - The iterable objects of interest.\n *\n * @returns An iterator which yields the values of the iterables\n * in the order in which they are supplied.\n *\n * #### Example\n * ```typescript\n * import { chain } from '@lumino/algorithm';\n *\n * let data1 = [1, 2, 3];\n * let data2 = [4, 5, 6];\n *\n * let stream = chain(data1, data2);\n *\n * Array.from(stream); // [1, 2, 3, 4, 5, 6]\n * ```\n */\nfunction* chain(...objects) {\n for (const object of objects) {\n yield* object;\n }\n}\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * Create an empty iterator.\n *\n * @returns A new iterator which yields nothing.\n *\n * #### Example\n * ```typescript\n * import { empty } from '@lumino/algorithm';\n *\n * let stream = empty();\n *\n * Array.from(stream); // []\n * ```\n */\n// eslint-disable-next-line require-yield\nfunction* empty() {\n return;\n}\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * Enumerate an iterable object.\n *\n * @param object - The iterable object of interest.\n *\n * @param start - The starting enum value. The default is `0`.\n *\n * @returns An iterator which yields the enumerated values.\n *\n * #### Example\n * ```typescript\n * import { enumerate } from '@lumino/algorithm';\n *\n * let data = ['foo', 'bar', 'baz'];\n *\n * let stream = enumerate(data, 1);\n *\n * Array.from(stream); // [[1, 'foo'], [2, 'bar'], [3, 'baz']]\n * ```\n */\nfunction* enumerate(object, start = 0) {\n for (const value of object) {\n yield [start++, value];\n }\n}\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * Filter an iterable for values which pass a test.\n *\n * @param object - The iterable object of interest.\n *\n * @param fn - The predicate function to invoke for each value.\n *\n * @returns An iterator which yields the values which pass the test.\n *\n * #### Example\n * ```typescript\n * import { filter } from '@lumino/algorithm';\n *\n * let data = [1, 2, 3, 4, 5, 6];\n *\n * let stream = filter(data, value => value % 2 === 0);\n *\n * Array.from(stream); // [2, 4, 6]\n * ```\n */\nfunction* filter(object, fn) {\n let index = 0;\n for (const value of object) {\n if (fn(value, index++)) {\n yield value;\n }\n }\n}\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * Find the first value in an iterable which matches a predicate.\n *\n * @param object - The iterable object to search.\n *\n * @param fn - The predicate function to apply to the values.\n *\n * @returns The first matching value, or `undefined` if no matching\n * value is found.\n *\n * #### Complexity\n * Linear.\n *\n * #### Example\n * ```typescript\n * import { find } from '@lumino/algorithm';\n *\n * interface IAnimal { species: string, name: string };\n *\n * function isCat(value: IAnimal): boolean {\n * return value.species === 'cat';\n * }\n *\n * let data: IAnimal[] = [\n * { species: 'dog', name: 'spot' },\n * { species: 'cat', name: 'fluffy' },\n * { species: 'alligator', name: 'pocho' }\n * ];\n *\n * find(data, isCat).name; // 'fluffy'\n * ```\n */\nfunction find(object, fn) {\n let index = 0;\n for (const value of object) {\n if (fn(value, index++)) {\n return value;\n }\n }\n return undefined;\n}\n/**\n * Find the index of the first value which matches a predicate.\n *\n * @param object - The iterable object to search.\n *\n * @param fn - The predicate function to apply to the values.\n *\n * @returns The index of the first matching value, or `-1` if no\n * matching value is found.\n *\n * #### Complexity\n * Linear.\n *\n * #### Example\n * ```typescript\n * import { findIndex } from '@lumino/algorithm';\n *\n * interface IAnimal { species: string, name: string };\n *\n * function isCat(value: IAnimal): boolean {\n * return value.species === 'cat';\n * }\n *\n * let data: IAnimal[] = [\n * { species: 'dog', name: 'spot' },\n * { species: 'cat', name: 'fluffy' },\n * { species: 'alligator', name: 'pocho' }\n * ];\n *\n * findIndex(data, isCat); // 1\n * ```\n */\nfunction findIndex(object, fn) {\n let index = 0;\n for (const value of object) {\n if (fn(value, index++)) {\n return index - 1;\n }\n }\n return -1;\n}\n/**\n * Find the minimum value in an iterable.\n *\n * @param object - The iterable object to search.\n *\n * @param fn - The 3-way comparison function to apply to the values.\n * It should return `< 0` if the first value is less than the second.\n * `0` if the values are equivalent, or `> 0` if the first value is\n * greater than the second.\n *\n * @returns The minimum value in the iterable. If multiple values are\n * equivalent to the minimum, the left-most value is returned. If\n * the iterable is empty, this returns `undefined`.\n *\n * #### Complexity\n * Linear.\n *\n * #### Example\n * ```typescript\n * import { min } from '@lumino/algorithm';\n *\n * function numberCmp(a: number, b: number): number {\n * return a - b;\n * }\n *\n * min([7, 4, 0, 3, 9, 4], numberCmp); // 0\n * ```\n */\nfunction min(object, fn) {\n let result = undefined;\n for (const value of object) {\n if (result === undefined) {\n result = value;\n continue;\n }\n if (fn(value, result) < 0) {\n result = value;\n }\n }\n return result;\n}\n/**\n * Find the maximum value in an iterable.\n *\n * @param object - The iterable object to search.\n *\n * @param fn - The 3-way comparison function to apply to the values.\n * It should return `< 0` if the first value is less than the second.\n * `0` if the values are equivalent, or `> 0` if the first value is\n * greater than the second.\n *\n * @returns The maximum value in the iterable. If multiple values are\n * equivalent to the maximum, the left-most value is returned. If\n * the iterable is empty, this returns `undefined`.\n *\n * #### Complexity\n * Linear.\n *\n * #### Example\n * ```typescript\n * import { max } from '@lumino/algorithm';\n *\n * function numberCmp(a: number, b: number): number {\n * return a - b;\n * }\n *\n * max([7, 4, 0, 3, 9, 4], numberCmp); // 9\n * ```\n */\nfunction max(object, fn) {\n let result = undefined;\n for (const value of object) {\n if (result === undefined) {\n result = value;\n continue;\n }\n if (fn(value, result) > 0) {\n result = value;\n }\n }\n return result;\n}\n/**\n * Find the minimum and maximum values in an iterable.\n *\n * @param object - The iterable object to search.\n *\n * @param fn - The 3-way comparison function to apply to the values.\n * It should return `< 0` if the first value is less than the second.\n * `0` if the values are equivalent, or `> 0` if the first value is\n * greater than the second.\n *\n * @returns A 2-tuple of the `[min, max]` values in the iterable. If\n * multiple values are equivalent, the left-most values are returned.\n * If the iterable is empty, this returns `undefined`.\n *\n * #### Complexity\n * Linear.\n *\n * #### Example\n * ```typescript\n * import { minmax } from '@lumino/algorithm';\n *\n * function numberCmp(a: number, b: number): number {\n * return a - b;\n * }\n *\n * minmax([7, 4, 0, 3, 9, 4], numberCmp); // [0, 9]\n * ```\n */\nfunction minmax(object, fn) {\n let empty = true;\n let vmin;\n let vmax;\n for (const value of object) {\n if (empty) {\n vmin = value;\n vmax = value;\n empty = false;\n }\n else if (fn(value, vmin) < 0) {\n vmin = value;\n }\n else if (fn(value, vmax) > 0) {\n vmax = value;\n }\n }\n return empty ? undefined : [vmin, vmax];\n}\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * Create an array from an iterable of values.\n *\n * @deprecated\n *\n * @param object - The iterable object of interest.\n *\n * @returns A new array of values from the given object.\n *\n * #### Example\n * ```typescript\n * import { toArray } from '@lumino/algorithm';\n *\n * let stream = [1, 2, 3, 4, 5, 6][Symbol.iterator]();\n *\n * toArray(stream); // [1, 2, 3, 4, 5, 6];\n * ```\n */\nfunction toArray(object) {\n return Array.from(object);\n}\n/**\n * Create an object from an iterable of key/value pairs.\n *\n * @param object - The iterable object of interest.\n *\n * @returns A new object mapping keys to values.\n *\n * #### Example\n * ```typescript\n * import { toObject } from '@lumino/algorithm';\n *\n * let data: [string, number][] = [['one', 1], ['two', 2], ['three', 3]];\n *\n * toObject(data); // { one: 1, two: 2, three: 3 }\n * ```\n */\nfunction toObject(object) {\n const result = {};\n for (const [key, value] of object) {\n result[key] = value;\n }\n return result;\n}\n/**\n * Invoke a function for each value in an iterable.\n *\n * @deprecated\n *\n * @param object - The iterable object of interest.\n *\n * @param fn - The callback function to invoke for each value.\n *\n * #### Notes\n * Iteration can be terminated early by returning `false` from the\n * callback function.\n *\n * #### Complexity\n * Linear.\n *\n * #### Example\n * ```typescript\n * import { each } from '@lumino/algorithm';\n *\n * let data = [5, 7, 0, -2, 9];\n *\n * each(data, value => { console.log(value); });\n * ```\n */\nfunction each(object, fn) {\n let index = 0;\n for (const value of object) {\n if (false === fn(value, index++)) {\n return;\n }\n }\n}\n/**\n * Test whether all values in an iterable satisfy a predicate.\n *\n * @param object - The iterable object of interest.\n *\n * @param fn - The predicate function to invoke for each value.\n *\n * @returns `true` if all values pass the test, `false` otherwise.\n *\n * #### Notes\n * Iteration terminates on the first `false` predicate result.\n *\n * #### Complexity\n * Linear.\n *\n * #### Example\n * ```typescript\n * import { every } from '@lumino/algorithm';\n *\n * let data = [5, 7, 1];\n *\n * every(data, value => value % 2 === 0); // false\n * every(data, value => value % 2 === 1); // true\n * ```\n */\nfunction every(object, fn) {\n let index = 0;\n for (const value of object) {\n if (false === fn(value, index++)) {\n return false;\n }\n }\n return true;\n}\n/**\n * Test whether any value in an iterable satisfies a predicate.\n *\n * @param object - The iterable object of interest.\n *\n * @param fn - The predicate function to invoke for each value.\n *\n * @returns `true` if any value passes the test, `false` otherwise.\n *\n * #### Notes\n * Iteration terminates on the first `true` predicate result.\n *\n * #### Complexity\n * Linear.\n *\n * #### Example\n * ```typescript\n * import { some } from '@lumino/algorithm';\n *\n * let data = [5, 7, 1];\n *\n * some(data, value => value === 7); // true\n * some(data, value => value === 3); // false\n * ```\n */\nfunction some(object, fn) {\n let index = 0;\n for (const value of object) {\n if (fn(value, index++)) {\n return true;\n }\n }\n return false;\n}\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * Transform the values of an iterable with a mapping function.\n *\n * @param object - The iterable object of interest.\n *\n * @param fn - The mapping function to invoke for each value.\n *\n * @returns An iterator which yields the transformed values.\n *\n * #### Example\n * ```typescript\n * import { map } from '@lumino/algorithm';\n *\n * let data = [1, 2, 3];\n *\n * let stream = map(data, value => value * 2);\n *\n * Array.from(stream); // [2, 4, 6]\n * ```\n */\nfunction* map(object, fn) {\n let index = 0;\n for (const value of object) {\n yield fn(value, index++);\n }\n}\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * Create an iterator of evenly spaced values.\n *\n * @param start - The starting value for the range, inclusive.\n *\n * @param stop - The stopping value for the range, exclusive.\n *\n * @param step - The distance between each value.\n *\n * @returns An iterator which produces evenly spaced values.\n *\n * #### Notes\n * In the single argument form of `range(stop)`, `start` defaults to\n * `0` and `step` defaults to `1`.\n *\n * In the two argument form of `range(start, stop)`, `step` defaults\n * to `1`.\n *\n * #### Example\n * ```typescript\n * import { range } from '@lumino/algorithm';\n *\n * let stream = range(2, 4);\n *\n * Array.from(stream); // [2, 3]\n * ```\n */\nfunction* range(start, stop, step) {\n if (stop === undefined) {\n stop = start;\n start = 0;\n step = 1;\n }\n else if (step === undefined) {\n step = 1;\n }\n const length = Private.rangeLength(start, stop, step);\n for (let index = 0; index < length; index++) {\n yield start + step * index;\n }\n}\n/**\n * The namespace for the module implementation details.\n */\nvar Private;\n(function (Private) {\n /**\n * Compute the effective length of a range.\n *\n * @param start - The starting value for the range, inclusive.\n *\n * @param stop - The stopping value for the range, exclusive.\n *\n * @param step - The distance between each value.\n *\n * @returns The number of steps need to traverse the range.\n */\n function rangeLength(start, stop, step) {\n if (step === 0) {\n return Infinity;\n }\n if (start > stop && step > 0) {\n return 0;\n }\n if (start < stop && step < 0) {\n return 0;\n }\n return Math.ceil((stop - start) / step);\n }\n Private.rangeLength = rangeLength;\n})(Private || (Private = {}));\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\nfunction reduce(object, fn, initial) {\n // Setup the iterator and fetch the first value.\n const it = object[Symbol.iterator]();\n let index = 0;\n let first = it.next();\n // An empty iterator and no initial value is an error.\n if (first.done && initial === undefined) {\n throw new TypeError('Reduce of empty iterable with no initial value.');\n }\n // If the iterator is empty, return the initial value.\n if (first.done) {\n return initial;\n }\n // If the iterator has a single item and no initial value, the\n // reducer is not invoked and the first item is the return value.\n let second = it.next();\n if (second.done && initial === undefined) {\n return first.value;\n }\n // If iterator has a single item and an initial value is provided,\n // the reducer is invoked and that result is the return value.\n if (second.done) {\n return fn(initial, first.value, index++);\n }\n // Setup the initial accumlated value.\n let accumulator;\n if (initial === undefined) {\n accumulator = fn(first.value, second.value, index++);\n }\n else {\n accumulator = fn(fn(initial, first.value, index++), second.value, index++);\n }\n // Iterate the rest of the values, updating the accumulator.\n let next;\n while (!(next = it.next()).done) {\n accumulator = fn(accumulator, next.value, index++);\n }\n // Return the final accumulated value.\n return accumulator;\n}\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * Create an iterator which repeats a value a number of times.\n *\n * @deprecated\n *\n * @param value - The value to repeat.\n *\n * @param count - The number of times to repeat the value.\n *\n * @returns A new iterator which repeats the specified value.\n *\n * #### Example\n * ```typescript\n * import { repeat } from '@lumino/algorithm';\n *\n * let stream = repeat(7, 3);\n *\n * Array.from(stream); // [7, 7, 7]\n * ```\n */\nfunction* repeat(value, count) {\n while (0 < count--) {\n yield value;\n }\n}\n/**\n * Create an iterator which yields a value a single time.\n *\n * @deprecated\n *\n * @param value - The value to wrap in an iterator.\n *\n * @returns A new iterator which yields the value a single time.\n *\n * #### Example\n * ```typescript\n * import { once } from '@lumino/algorithm';\n *\n * let stream = once(7);\n *\n * Array.from(stream); // [7]\n * ```\n */\nfunction* once(value) {\n yield value;\n}\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * Create an iterator for a retroable object.\n *\n * @param object - The retroable or array-like object of interest.\n *\n * @returns An iterator which traverses the object's values in reverse.\n *\n * #### Example\n * ```typescript\n * import { retro } from '@lumino/algorithm';\n *\n * let data = [1, 2, 3, 4, 5, 6];\n *\n * let stream = retro(data);\n *\n * Array.from(stream); // [6, 5, 4, 3, 2, 1]\n * ```\n */\nfunction* retro(object) {\n if (typeof object.retro === 'function') {\n yield* object.retro();\n }\n else {\n for (let index = object.length - 1; index > -1; index--) {\n yield object[index];\n }\n }\n}\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * Topologically sort an iterable of edges.\n *\n * @param edges - The iterable object of edges to sort.\n * An edge is represented as a 2-tuple of `[fromNode, toNode]`.\n *\n * @returns The topologically sorted array of nodes.\n *\n * #### Notes\n * If a cycle is present in the graph, the cycle will be ignored and\n * the return value will be only approximately sorted.\n *\n * #### Example\n * ```typescript\n * import { topologicSort } from '@lumino/algorithm';\n *\n * let data = [\n * ['d', 'e'],\n * ['c', 'd'],\n * ['a', 'b'],\n * ['b', 'c']\n * ];\n *\n * topologicSort(data); // ['a', 'b', 'c', 'd', 'e']\n * ```\n */\nfunction topologicSort(edges) {\n // Setup the shared sorting state.\n let sorted = [];\n let visited = new Set();\n let graph = new Map();\n // Add the edges to the graph.\n for (const edge of edges) {\n addEdge(edge);\n }\n // Visit each node in the graph.\n for (const [k] of graph) {\n visit(k);\n }\n // Return the sorted results.\n return sorted;\n // Add an edge to the graph.\n function addEdge(edge) {\n let [fromNode, toNode] = edge;\n let children = graph.get(toNode);\n if (children) {\n children.push(fromNode);\n }\n else {\n graph.set(toNode, [fromNode]);\n }\n }\n // Recursively visit the node.\n function visit(node) {\n if (visited.has(node)) {\n return;\n }\n visited.add(node);\n let children = graph.get(node);\n if (children) {\n for (const child of children) {\n visit(child);\n }\n }\n sorted.push(node);\n }\n}\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * Iterate over an iterable using a stepped increment.\n *\n * @param object - The iterable object of interest.\n *\n * @param step - The distance to step on each iteration. A value\n * of less than `1` will behave the same as a value of `1`.\n *\n * @returns An iterator which traverses the iterable step-wise.\n *\n * #### Example\n * ```typescript\n * import { stride } from '@lumino/algorithm';\n *\n * let data = [1, 2, 3, 4, 5, 6];\n *\n * let stream = stride(data, 2);\n *\n * Array.from(stream); // [1, 3, 5];\n * ```\n */\nfunction* stride(object, step) {\n let count = 0;\n for (const value of object) {\n if (0 === count++ % step) {\n yield value;\n }\n }\n}\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * The namespace for string-specific algorithms.\n */\nvar StringExt;\n(function (StringExt) {\n /**\n * Find the indices of characters in a source text.\n *\n * @param source - The source text which should be searched.\n *\n * @param query - The characters to locate in the source text.\n *\n * @param start - The index to start the search.\n *\n * @returns The matched indices, or `null` if there is no match.\n *\n * #### Complexity\n * Linear on `sourceText`.\n *\n * #### Notes\n * In order for there to be a match, all of the characters in `query`\n * **must** appear in `source` in the order given by `query`.\n *\n * Characters are matched using strict `===` equality.\n */\n function findIndices(source, query, start = 0) {\n let indices = new Array(query.length);\n for (let i = 0, j = start, n = query.length; i < n; ++i, ++j) {\n j = source.indexOf(query[i], j);\n if (j === -1) {\n return null;\n }\n indices[i] = j;\n }\n return indices;\n }\n StringExt.findIndices = findIndices;\n /**\n * A string matcher which uses a sum-of-squares algorithm.\n *\n * @param source - The source text which should be searched.\n *\n * @param query - The characters to locate in the source text.\n *\n * @param start - The index to start the search.\n *\n * @returns The match result, or `null` if there is no match.\n * A lower `score` represents a stronger match.\n *\n * #### Complexity\n * Linear on `sourceText`.\n *\n * #### Notes\n * This scoring algorithm uses a sum-of-squares approach to determine\n * the score. In order for there to be a match, all of the characters\n * in `query` **must** appear in `source` in order. The index of each\n * matching character is squared and added to the score. This means\n * that early and consecutive character matches are preferred, while\n * late matches are heavily penalized.\n */\n function matchSumOfSquares(source, query, start = 0) {\n let indices = findIndices(source, query, start);\n if (!indices) {\n return null;\n }\n let score = 0;\n for (let i = 0, n = indices.length; i < n; ++i) {\n let j = indices[i] - start;\n score += j * j;\n }\n return { score, indices };\n }\n StringExt.matchSumOfSquares = matchSumOfSquares;\n /**\n * A string matcher which uses a sum-of-deltas algorithm.\n *\n * @param source - The source text which should be searched.\n *\n * @param query - The characters to locate in the source text.\n *\n * @param start - The index to start the search.\n *\n * @returns The match result, or `null` if there is no match.\n * A lower `score` represents a stronger match.\n *\n * #### Complexity\n * Linear on `sourceText`.\n *\n * #### Notes\n * This scoring algorithm uses a sum-of-deltas approach to determine\n * the score. In order for there to be a match, all of the characters\n * in `query` **must** appear in `source` in order. The delta between\n * the indices are summed to create the score. This means that groups\n * of matched characters are preferred, while fragmented matches are\n * penalized.\n */\n function matchSumOfDeltas(source, query, start = 0) {\n let indices = findIndices(source, query, start);\n if (!indices) {\n return null;\n }\n let score = 0;\n let last = start - 1;\n for (let i = 0, n = indices.length; i < n; ++i) {\n let j = indices[i];\n score += j - last - 1;\n last = j;\n }\n return { score, indices };\n }\n StringExt.matchSumOfDeltas = matchSumOfDeltas;\n /**\n * Highlight the matched characters of a source text.\n *\n * @param source - The text which should be highlighted.\n *\n * @param indices - The indices of the matched characters. They must\n * appear in increasing order and must be in bounds of the source.\n *\n * @param fn - The function to apply to the matched chunks.\n *\n * @returns An array of unmatched and highlighted chunks.\n */\n function highlight(source, indices, fn) {\n // Set up the result array.\n let result = [];\n // Set up the counter variables.\n let k = 0;\n let last = 0;\n let n = indices.length;\n // Iterator over each index.\n while (k < n) {\n // Set up the chunk indices.\n let i = indices[k];\n let j = indices[k];\n // Advance the right chunk index until it's non-contiguous.\n while (++k < n && indices[k] === j + 1) {\n j++;\n }\n // Extract the unmatched text.\n if (last < i) {\n result.push(source.slice(last, i));\n }\n // Extract and highlight the matched text.\n if (i < j + 1) {\n result.push(fn(source.slice(i, j + 1)));\n }\n // Update the last visited index.\n last = j + 1;\n }\n // Extract any remaining unmatched text.\n if (last < source.length) {\n result.push(source.slice(last));\n }\n // Return the highlighted result.\n return result;\n }\n StringExt.highlight = highlight;\n /**\n * A 3-way string comparison function.\n *\n * @param a - The first string of interest.\n *\n * @param b - The second string of interest.\n *\n * @returns `-1` if `a < b`, else `1` if `a > b`, else `0`.\n */\n function cmp(a, b) {\n return a < b ? -1 : a > b ? 1 : 0;\n }\n StringExt.cmp = cmp;\n})(StringExt || (StringExt = {}));\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * Take a fixed number of items from an iterable.\n *\n * @param object - The iterable object of interest.\n *\n * @param count - The number of items to take from the iterable.\n *\n * @returns An iterator which yields the specified number of items\n * from the source iterable.\n *\n * #### Notes\n * The returned iterator will exhaust early if the source iterable\n * contains an insufficient number of items.\n *\n * #### Example\n * ```typescript\n * import { take } from '@lumino/algorithm';\n *\n * let stream = take([5, 4, 3, 2, 1, 0, -1], 3);\n *\n * Array.from(stream); // [5, 4, 3]\n * ```\n */\nfunction* take(object, count) {\n if (count < 1) {\n return;\n }\n const it = object[Symbol.iterator]();\n let item;\n while (0 < count-- && !(item = it.next()).done) {\n yield item.value;\n }\n}\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * Iterate several iterables in lockstep.\n *\n * @param objects - The iterable objects of interest.\n *\n * @returns An iterator which yields successive tuples of values where\n * each value is taken in turn from the provided iterables. It will\n * be as long as the shortest provided iterable.\n *\n * #### Example\n * ```typescript\n * import { zip } from '@lumino/algorithm';\n *\n * let data1 = [1, 2, 3];\n * let data2 = [4, 5, 6];\n *\n * let stream = zip(data1, data2);\n *\n * Array.from(stream); // [[1, 4], [2, 5], [3, 6]]\n * ```\n */\nfunction* zip(...objects) {\n const iters = objects.map(obj => obj[Symbol.iterator]());\n let tuple = iters.map(it => it.next());\n for (; every(tuple, item => !item.done); tuple = iters.map(it => it.next())) {\n yield tuple.map(item => item.value);\n }\n}\n\nexport { ArrayExt, StringExt, chain, each, empty, enumerate, every, filter, find, findIndex, map, max, min, minmax, once, range, reduce, repeat, retro, some, stride, take, toArray, toObject, topologicSort, zip };\n//# sourceMappingURL=index.es6.js.map\n","// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2019, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * The namespace for clipboard related functionality.\n */\nvar ClipboardExt;\n(function (ClipboardExt) {\n /**\n * Copy text to the system clipboard.\n *\n * @param text - The text to copy to the clipboard.\n */\n function copyText(text) {\n // Fetch the document body.\n const body = document.body;\n // Set up the clipboard event listener.\n const handler = (event) => {\n // Stop the event propagation.\n event.preventDefault();\n event.stopPropagation();\n // Set the clipboard data.\n event.clipboardData.setData('text', text);\n // Remove the event listener.\n body.removeEventListener('copy', handler, true);\n };\n // Add the event listener.\n body.addEventListener('copy', handler, true);\n // Trigger the event.\n document.execCommand('copy');\n }\n ClipboardExt.copyText = copyText;\n})(ClipboardExt || (ClipboardExt = {}));\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * The namespace for element related utilities.\n */\nvar ElementExt;\n(function (ElementExt) {\n /**\n * Compute the box sizing for an element.\n *\n * @param element - The element of interest.\n *\n * @returns The box sizing data for the specified element.\n */\n function boxSizing(element) {\n let style = window.getComputedStyle(element);\n let bt = parseFloat(style.borderTopWidth) || 0;\n let bl = parseFloat(style.borderLeftWidth) || 0;\n let br = parseFloat(style.borderRightWidth) || 0;\n let bb = parseFloat(style.borderBottomWidth) || 0;\n let pt = parseFloat(style.paddingTop) || 0;\n let pl = parseFloat(style.paddingLeft) || 0;\n let pr = parseFloat(style.paddingRight) || 0;\n let pb = parseFloat(style.paddingBottom) || 0;\n let hs = bl + pl + pr + br;\n let vs = bt + pt + pb + bb;\n return {\n borderTop: bt,\n borderLeft: bl,\n borderRight: br,\n borderBottom: bb,\n paddingTop: pt,\n paddingLeft: pl,\n paddingRight: pr,\n paddingBottom: pb,\n horizontalSum: hs,\n verticalSum: vs\n };\n }\n ElementExt.boxSizing = boxSizing;\n /**\n * Compute the size limits for an element.\n *\n * @param element - The element of interest.\n *\n * @returns The size limit data for the specified element.\n */\n function sizeLimits(element) {\n let style = window.getComputedStyle(element);\n let minWidth = parseFloat(style.minWidth) || 0;\n let minHeight = parseFloat(style.minHeight) || 0;\n let maxWidth = parseFloat(style.maxWidth) || Infinity;\n let maxHeight = parseFloat(style.maxHeight) || Infinity;\n maxWidth = Math.max(minWidth, maxWidth);\n maxHeight = Math.max(minHeight, maxHeight);\n return { minWidth, minHeight, maxWidth, maxHeight };\n }\n ElementExt.sizeLimits = sizeLimits;\n /**\n * Test whether a client position lies within an element.\n *\n * @param element - The DOM element of interest.\n *\n * @param clientX - The client X coordinate of interest.\n *\n * @param clientY - The client Y coordinate of interest.\n *\n * @returns Whether the point is within the given element.\n */\n function hitTest(element, clientX, clientY) {\n let rect = element.getBoundingClientRect();\n return (clientX >= rect.left &&\n clientX < rect.right &&\n clientY >= rect.top &&\n clientY < rect.bottom);\n }\n ElementExt.hitTest = hitTest;\n /**\n * Vertically scroll an element into view if needed.\n *\n * @param area - The scroll area element.\n *\n * @param element - The element of interest.\n *\n * #### Notes\n * This follows the \"nearest\" behavior of the native `scrollIntoView`\n * method, which is not supported by all browsers.\n * https://drafts.csswg.org/cssom-view/#element-scrolling-members\n *\n * If the element fully covers the visible area or is fully contained\n * within the visible area, no scrolling will take place. Otherwise,\n * the nearest edges of the area and element are aligned.\n */\n function scrollIntoViewIfNeeded(area, element) {\n let ar = area.getBoundingClientRect();\n let er = element.getBoundingClientRect();\n if (er.top <= ar.top && er.bottom >= ar.bottom) {\n return;\n }\n if (er.top < ar.top && er.height <= ar.height) {\n area.scrollTop -= ar.top - er.top;\n return;\n }\n if (er.bottom > ar.bottom && er.height >= ar.height) {\n area.scrollTop -= ar.top - er.top;\n return;\n }\n if (er.top < ar.top && er.height > ar.height) {\n area.scrollTop -= ar.bottom - er.bottom;\n return;\n }\n if (er.bottom > ar.bottom && er.height < ar.height) {\n area.scrollTop -= ar.bottom - er.bottom;\n return;\n }\n }\n ElementExt.scrollIntoViewIfNeeded = scrollIntoViewIfNeeded;\n})(ElementExt || (ElementExt = {}));\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * The namespace for platform related utilities.\n */\nvar Platform;\n(function (Platform) {\n /**\n * A flag indicating whether the platform is Mac.\n */\n Platform.IS_MAC = !!navigator.platform.match(/Mac/i);\n /**\n * A flag indicating whether the platform is Windows.\n */\n Platform.IS_WIN = !!navigator.platform.match(/Win/i);\n /**\n * A flag indicating whether the browser is IE.\n */\n Platform.IS_IE = /Trident/.test(navigator.userAgent);\n /**\n * A flag indicating whether the browser is Edge.\n */\n Platform.IS_EDGE = /Edge/.test(navigator.userAgent);\n /**\n * Test whether the `accel` key is pressed.\n *\n * @param event - The keyboard or mouse event of interest.\n *\n * @returns Whether the `accel` key is pressed.\n *\n * #### Notes\n * On Mac the `accel` key is the command key. On all other\n * platforms the `accel` key is the control key.\n */\n function accelKey(event) {\n return Platform.IS_MAC ? event.metaKey : event.ctrlKey;\n }\n Platform.accelKey = accelKey;\n})(Platform || (Platform = {}));\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * The namespace for selector related utilities.\n */\nvar Selector;\n(function (Selector) {\n /**\n * Calculate the specificity of a single CSS selector.\n *\n * @param selector - The CSS selector of interest.\n *\n * @returns The specificity of the selector.\n *\n * #### Undefined Behavior\n * The selector is invalid.\n *\n * #### Notes\n * This is based on https://www.w3.org/TR/css3-selectors/#specificity\n *\n * A larger number represents a more specific selector.\n *\n * The smallest possible specificity is `0`.\n *\n * The result is represented as a hex number `0x` where\n * each component is the count of the respective selector clause.\n *\n * If the selector contains commas, only the first clause is used.\n *\n * The computed result is cached, so subsequent calculations for the\n * same selector are extremely fast.\n */\n function calculateSpecificity(selector) {\n if (selector in Private.specificityCache) {\n return Private.specificityCache[selector];\n }\n let result = Private.calculateSingle(selector);\n return (Private.specificityCache[selector] = result);\n }\n Selector.calculateSpecificity = calculateSpecificity;\n /**\n * Test whether a selector is a valid CSS selector.\n *\n * @param selector - The CSS selector of interest.\n *\n * @returns `true` if the selector is valid, `false` otherwise.\n *\n * #### Notes\n * The computed result is cached, so subsequent tests for the same\n * selector are extremely fast.\n */\n function isValid(selector) {\n if (selector in Private.validityCache) {\n return Private.validityCache[selector];\n }\n let result = true;\n try {\n Private.testElem.querySelector(selector);\n }\n catch (err) {\n result = false;\n }\n return (Private.validityCache[selector] = result);\n }\n Selector.isValid = isValid;\n /**\n * Test whether an element matches a CSS selector.\n *\n * @param element - The element of interest.\n *\n * @param selector - The valid CSS selector of interest.\n *\n * @returns `true` if the element is a match, `false` otherwise.\n *\n * #### Notes\n * This function uses the builtin browser capabilities when possible,\n * falling back onto a document query otherwise.\n */\n function matches(element, selector) {\n return Private.protoMatchFunc.call(element, selector);\n }\n Selector.matches = matches;\n})(Selector || (Selector = {}));\n/**\n * The namespace for the module implementation details.\n */\nvar Private;\n(function (Private) {\n /**\n * A cache of computed selector specificity values.\n */\n Private.specificityCache = Object.create(null);\n /**\n * A cache of computed selector validity.\n */\n Private.validityCache = Object.create(null);\n /**\n * An empty element for testing selector validity.\n */\n Private.testElem = document.createElement('div');\n /**\n * A cross-browser CSS selector matching prototype function.\n */\n Private.protoMatchFunc = (() => {\n let proto = Element.prototype;\n return (proto.matches ||\n proto.matchesSelector ||\n proto.mozMatchesSelector ||\n proto.msMatchesSelector ||\n proto.oMatchesSelector ||\n proto.webkitMatchesSelector ||\n function (selector) {\n let elem = this;\n let matches = elem.ownerDocument\n ? elem.ownerDocument.querySelectorAll(selector)\n : [];\n return Array.prototype.indexOf.call(matches, elem) !== -1;\n });\n })();\n /**\n * Calculate the specificity of a single selector.\n *\n * The behavior is undefined if the selector is invalid.\n */\n function calculateSingle(selector) {\n // Ignore anything after the first comma.\n selector = selector.split(',', 1)[0];\n // Setup the aggregate counters.\n let a = 0;\n let b = 0;\n let c = 0;\n // Apply a regex to the front of the selector. If it succeeds, that\n // portion of the selector is removed. Returns a success/fail flag.\n function match(re) {\n let match = selector.match(re);\n if (match === null) {\n return false;\n }\n selector = selector.slice(match[0].length);\n return true;\n }\n // Replace the negation pseudo-class (which is ignored),\n // but keep its inner content (which is not ignored).\n selector = selector.replace(NEGATION_RE, ' $1 ');\n // Continue matching until the selector is consumed.\n while (selector.length > 0) {\n // Match an ID selector.\n if (match(ID_RE)) {\n a++;\n continue;\n }\n // Match a class selector.\n if (match(CLASS_RE)) {\n b++;\n continue;\n }\n // Match an attribute selector.\n if (match(ATTR_RE)) {\n b++;\n continue;\n }\n // Match a pseudo-element selector. This is done before matching\n // a pseudo-class since this regex overlaps with that regex.\n if (match(PSEUDO_ELEM_RE)) {\n c++;\n continue;\n }\n // Match a pseudo-class selector.\n if (match(PSEDUO_CLASS_RE)) {\n b++;\n continue;\n }\n // Match a plain type selector.\n if (match(TYPE_RE)) {\n c++;\n continue;\n }\n // Finally, match any ignored characters.\n if (match(IGNORE_RE)) {\n continue;\n }\n // At this point, the selector is assumed to be invalid.\n return 0;\n }\n // Clamp each component to a reasonable base.\n a = Math.min(a, 0xff);\n b = Math.min(b, 0xff);\n c = Math.min(c, 0xff);\n // Combine the components into a single result.\n return (a << 16) | (b << 8) | c;\n }\n Private.calculateSingle = calculateSingle;\n /**\n * A regex which matches an ID selector at string start.\n */\n const ID_RE = /^#[^\\s\\+>~#\\.\\[:]+/;\n /**\n * A regex which matches a class selector at string start.\n */\n const CLASS_RE = /^\\.[^\\s\\+>~#\\.\\[:]+/;\n /**\n * A regex which matches an attribute selector at string start.\n */\n const ATTR_RE = /^\\[[^\\]]+\\]/;\n /**\n * A regex which matches a type selector at string start.\n */\n const TYPE_RE = /^[^\\s\\+>~#\\.\\[:]+/;\n /**\n * A regex which matches a pseudo-element selector at string start.\n */\n const PSEUDO_ELEM_RE = /^(::[^\\s\\+>~#\\.\\[:]+|:first-line|:first-letter|:before|:after)/;\n /**\n * A regex which matches a pseudo-class selector at string start.\n */\n const PSEDUO_CLASS_RE = /^:[^\\s\\+>~#\\.\\[:]+/;\n /**\n * A regex which matches ignored characters at string start.\n */\n const IGNORE_RE = /^[\\s\\+>~\\*]+/;\n /**\n * A regex which matches the negation pseudo-class globally.\n */\n const NEGATION_RE = /:not\\(([^\\)]+)\\)/g;\n})(Private || (Private = {}));\n\nexport { ClipboardExt, ElementExt, Platform, Selector };\n//# sourceMappingURL=index.es6.js.map\n","/**\n * A generic doubly-linked list.\n */\nclass LinkedList {\n constructor() {\n this._first = null;\n this._last = null;\n this._size = 0;\n }\n /**\n * Whether the list is empty.\n *\n * #### Complexity\n * Constant.\n */\n get isEmpty() {\n return this._size === 0;\n }\n /**\n * The size of the list.\n *\n * #### Complexity\n * `O(1)`\n *\n * #### Notes\n * This is equivalent to `length`.\n */\n get size() {\n return this._size;\n }\n /**\n * The length of the list.\n *\n * #### Complexity\n * Constant.\n *\n * #### Notes\n * This is equivalent to `size`.\n *\n * This property is deprecated.\n */\n get length() {\n return this._size;\n }\n /**\n * The first value in the list.\n *\n * This is `undefined` if the list is empty.\n *\n * #### Complexity\n * Constant.\n */\n get first() {\n return this._first ? this._first.value : undefined;\n }\n /**\n * The last value in the list.\n *\n * This is `undefined` if the list is empty.\n *\n * #### Complexity\n * Constant.\n */\n get last() {\n return this._last ? this._last.value : undefined;\n }\n /**\n * The first node in the list.\n *\n * This is `null` if the list is empty.\n *\n * #### Complexity\n * Constant.\n */\n get firstNode() {\n return this._first;\n }\n /**\n * The last node in the list.\n *\n * This is `null` if the list is empty.\n *\n * #### Complexity\n * Constant.\n */\n get lastNode() {\n return this._last;\n }\n /**\n * Create an iterator over the values in the list.\n *\n * @returns A new iterator starting with the first value.\n *\n * #### Complexity\n * Constant.\n */\n *[Symbol.iterator]() {\n let node = this._first;\n while (node) {\n yield node.value;\n node = node.next;\n }\n }\n /**\n * Create a reverse iterator over the values in the list.\n *\n * @returns A new iterator starting with the last value.\n *\n * #### Complexity\n * Constant.\n */\n *retro() {\n let node = this._last;\n while (node) {\n yield node.value;\n node = node.prev;\n }\n }\n /**\n * Create an iterator over the nodes in the list.\n *\n * @returns A new iterator starting with the first node.\n *\n * #### Complexity\n * Constant.\n */\n *nodes() {\n let node = this._first;\n while (node) {\n yield node;\n node = node.next;\n }\n }\n /**\n * Create a reverse iterator over the nodes in the list.\n *\n * @returns A new iterator starting with the last node.\n *\n * #### Complexity\n * Constant.\n */\n *retroNodes() {\n let node = this._last;\n while (node) {\n yield node;\n node = node.prev;\n }\n }\n /**\n * Assign new values to the list, replacing all current values.\n *\n * @param values - The values to assign to the list.\n *\n * #### Complexity\n * Linear.\n */\n assign(values) {\n this.clear();\n for (const value of values) {\n this.addLast(value);\n }\n }\n /**\n * Add a value to the end of the list.\n *\n * @param value - The value to add to the end of the list.\n *\n * #### Complexity\n * Constant.\n *\n * #### Notes\n * This is equivalent to `addLast`.\n */\n push(value) {\n this.addLast(value);\n }\n /**\n * Remove and return the value at the end of the list.\n *\n * @returns The removed value, or `undefined` if the list is empty.\n *\n * #### Complexity\n * Constant.\n *\n * #### Notes\n * This is equivalent to `removeLast`.\n */\n pop() {\n return this.removeLast();\n }\n /**\n * Add a value to the beginning of the list.\n *\n * @param value - The value to add to the beginning of the list.\n *\n * #### Complexity\n * Constant.\n *\n * #### Notes\n * This is equivalent to `addFirst`.\n */\n shift(value) {\n this.addFirst(value);\n }\n /**\n * Remove and return the value at the beginning of the list.\n *\n * @returns The removed value, or `undefined` if the list is empty.\n *\n * #### Complexity\n * Constant.\n *\n * #### Notes\n * This is equivalent to `removeFirst`.\n */\n unshift() {\n return this.removeFirst();\n }\n /**\n * Add a value to the beginning of the list.\n *\n * @param value - The value to add to the beginning of the list.\n *\n * @returns The list node which holds the value.\n *\n * #### Complexity\n * Constant.\n */\n addFirst(value) {\n let node = new Private.LinkedListNode(this, value);\n if (!this._first) {\n this._first = node;\n this._last = node;\n }\n else {\n node.next = this._first;\n this._first.prev = node;\n this._first = node;\n }\n this._size++;\n return node;\n }\n /**\n * Add a value to the end of the list.\n *\n * @param value - The value to add to the end of the list.\n *\n * @returns The list node which holds the value.\n *\n * #### Complexity\n * Constant.\n */\n addLast(value) {\n let node = new Private.LinkedListNode(this, value);\n if (!this._last) {\n this._first = node;\n this._last = node;\n }\n else {\n node.prev = this._last;\n this._last.next = node;\n this._last = node;\n }\n this._size++;\n return node;\n }\n /**\n * Insert a value before a specific node in the list.\n *\n * @param value - The value to insert before the reference node.\n *\n * @param ref - The reference node of interest. If this is `null`,\n * the value will be added to the beginning of the list.\n *\n * @returns The list node which holds the value.\n *\n * #### Notes\n * The reference node must be owned by the list.\n *\n * #### Complexity\n * Constant.\n */\n insertBefore(value, ref) {\n if (!ref || ref === this._first) {\n return this.addFirst(value);\n }\n if (!(ref instanceof Private.LinkedListNode) || ref.list !== this) {\n throw new Error('Reference node is not owned by the list.');\n }\n let node = new Private.LinkedListNode(this, value);\n let _ref = ref;\n let prev = _ref.prev;\n node.next = _ref;\n node.prev = prev;\n _ref.prev = node;\n prev.next = node;\n this._size++;\n return node;\n }\n /**\n * Insert a value after a specific node in the list.\n *\n * @param value - The value to insert after the reference node.\n *\n * @param ref - The reference node of interest. If this is `null`,\n * the value will be added to the end of the list.\n *\n * @returns The list node which holds the value.\n *\n * #### Notes\n * The reference node must be owned by the list.\n *\n * #### Complexity\n * Constant.\n */\n insertAfter(value, ref) {\n if (!ref || ref === this._last) {\n return this.addLast(value);\n }\n if (!(ref instanceof Private.LinkedListNode) || ref.list !== this) {\n throw new Error('Reference node is not owned by the list.');\n }\n let node = new Private.LinkedListNode(this, value);\n let _ref = ref;\n let next = _ref.next;\n node.next = next;\n node.prev = _ref;\n _ref.next = node;\n next.prev = node;\n this._size++;\n return node;\n }\n /**\n * Remove and return the value at the beginning of the list.\n *\n * @returns The removed value, or `undefined` if the list is empty.\n *\n * #### Complexity\n * Constant.\n */\n removeFirst() {\n let node = this._first;\n if (!node) {\n return undefined;\n }\n if (node === this._last) {\n this._first = null;\n this._last = null;\n }\n else {\n this._first = node.next;\n this._first.prev = null;\n }\n node.list = null;\n node.next = null;\n node.prev = null;\n this._size--;\n return node.value;\n }\n /**\n * Remove and return the value at the end of the list.\n *\n * @returns The removed value, or `undefined` if the list is empty.\n *\n * #### Complexity\n * Constant.\n */\n removeLast() {\n let node = this._last;\n if (!node) {\n return undefined;\n }\n if (node === this._first) {\n this._first = null;\n this._last = null;\n }\n else {\n this._last = node.prev;\n this._last.next = null;\n }\n node.list = null;\n node.next = null;\n node.prev = null;\n this._size--;\n return node.value;\n }\n /**\n * Remove a specific node from the list.\n *\n * @param node - The node to remove from the list.\n *\n * #### Complexity\n * Constant.\n *\n * #### Notes\n * The node must be owned by the list.\n */\n removeNode(node) {\n if (!(node instanceof Private.LinkedListNode) || node.list !== this) {\n throw new Error('Node is not owned by the list.');\n }\n let _node = node;\n if (_node === this._first && _node === this._last) {\n this._first = null;\n this._last = null;\n }\n else if (_node === this._first) {\n this._first = _node.next;\n this._first.prev = null;\n }\n else if (_node === this._last) {\n this._last = _node.prev;\n this._last.next = null;\n }\n else {\n _node.next.prev = _node.prev;\n _node.prev.next = _node.next;\n }\n _node.list = null;\n _node.next = null;\n _node.prev = null;\n this._size--;\n }\n /**\n * Remove all values from the list.\n *\n * #### Complexity\n * Linear.\n */\n clear() {\n let node = this._first;\n while (node) {\n let next = node.next;\n node.list = null;\n node.prev = null;\n node.next = null;\n node = next;\n }\n this._first = null;\n this._last = null;\n this._size = 0;\n }\n}\n/**\n * The namespace for the `LinkedList` class statics.\n */\n(function (LinkedList) {\n /**\n * Create a linked list from an iterable of values.\n *\n * @param values - The iterable object of interest.\n *\n * @returns A new linked list initialized with the given values.\n *\n * #### Complexity\n * Linear.\n */\n function from(values) {\n let list = new LinkedList();\n list.assign(values);\n return list;\n }\n LinkedList.from = from;\n})(LinkedList || (LinkedList = {}));\n/**\n * The namespace for the module implementation details.\n */\nvar Private;\n(function (Private) {\n /**\n * The internal linked list node implementation.\n */\n class LinkedListNode {\n /**\n * Construct a new linked list node.\n *\n * @param list - The list which owns the node.\n *\n * @param value - The value for the link.\n */\n constructor(list, value) {\n /**\n * The linked list which created and owns the node.\n */\n this.list = null;\n /**\n * The next node in the list.\n */\n this.next = null;\n /**\n * The previous node in the list.\n */\n this.prev = null;\n this.list = list;\n this.value = value;\n }\n }\n Private.LinkedListNode = LinkedListNode;\n})(Private || (Private = {}));\n\nexport { LinkedList };\n//# sourceMappingURL=index.es6.js.map\n","import { every, retro, some, ArrayExt } from '@lumino/algorithm';\nimport { LinkedList } from '@lumino/collections';\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * @packageDocumentation\n * @module messaging\n */\n/**\n * A message which can be delivered to a message handler.\n *\n * #### Notes\n * This class may be subclassed to create complex message types.\n */\nclass Message {\n /**\n * Construct a new message.\n *\n * @param type - The type of the message.\n */\n constructor(type) {\n this.type = type;\n }\n /**\n * Test whether the message is conflatable.\n *\n * #### Notes\n * Message conflation is an advanced topic. Most message types will\n * not make use of this feature.\n *\n * If a conflatable message is posted to a handler while another\n * conflatable message of the same `type` has already been posted\n * to the handler, the `conflate()` method of the existing message\n * will be invoked. If that method returns `true`, the new message\n * will not be enqueued. This allows messages to be compressed, so\n * that only a single instance of the message type is processed per\n * cycle, no matter how many times messages of that type are posted.\n *\n * Custom message types may reimplement this property.\n *\n * The default implementation is always `false`.\n */\n get isConflatable() {\n return false;\n }\n /**\n * Conflate this message with another message of the same `type`.\n *\n * @param other - A conflatable message of the same `type`.\n *\n * @returns `true` if the message was successfully conflated, or\n * `false` otherwise.\n *\n * #### Notes\n * Message conflation is an advanced topic. Most message types will\n * not make use of this feature.\n *\n * This method is called automatically by the message loop when the\n * given message is posted to the handler paired with this message.\n * This message will already be enqueued and conflatable, and the\n * given message will have the same `type` and also be conflatable.\n *\n * This method should merge the state of the other message into this\n * message as needed so that when this message is finally delivered\n * to the handler, it receives the most up-to-date information.\n *\n * If this method returns `true`, it signals that the other message\n * was successfully conflated and that message will not be enqueued.\n *\n * If this method returns `false`, the other message will be enqueued\n * for normal delivery.\n *\n * Custom message types may reimplement this method.\n *\n * The default implementation always returns `false`.\n */\n conflate(other) {\n return false;\n }\n}\n/**\n * A convenience message class which conflates automatically.\n *\n * #### Notes\n * Message conflation is an advanced topic. Most user code will not\n * make use of this class.\n *\n * This message class is useful for creating message instances which\n * should be conflated, but which have no state other than `type`.\n *\n * If conflation of stateful messages is required, a custom `Message`\n * subclass should be created.\n */\nclass ConflatableMessage extends Message {\n /**\n * Test whether the message is conflatable.\n *\n * #### Notes\n * This property is always `true`.\n */\n get isConflatable() {\n return true;\n }\n /**\n * Conflate this message with another message of the same `type`.\n *\n * #### Notes\n * This method always returns `true`.\n */\n conflate(other) {\n return true;\n }\n}\n/**\n * The namespace for the global singleton message loop.\n */\nvar MessageLoop;\n(function (MessageLoop) {\n /**\n * A function that cancels the pending loop task; `null` if unavailable.\n */\n let pending = null;\n /**\n * Schedules a function for invocation as soon as possible asynchronously.\n *\n * @param fn The function to invoke when called back.\n *\n * @returns An anonymous function that will unschedule invocation if possible.\n */\n const schedule = (resolved => (fn) => {\n let rejected = false;\n resolved.then(() => !rejected && fn());\n return () => {\n rejected = true;\n };\n })(Promise.resolve());\n /**\n * Send a message to a message handler to process immediately.\n *\n * @param handler - The handler which should process the message.\n *\n * @param msg - The message to deliver to the handler.\n *\n * #### Notes\n * The message will first be sent through any installed message hooks\n * for the handler. If the message passes all hooks, it will then be\n * delivered to the `processMessage` method of the handler.\n *\n * The message will not be conflated with pending posted messages.\n *\n * Exceptions in hooks and handlers will be caught and logged.\n */\n function sendMessage(handler, msg) {\n // Lookup the message hooks for the handler.\n let hooks = messageHooks.get(handler);\n // Handle the common case of no installed hooks.\n if (!hooks || hooks.length === 0) {\n invokeHandler(handler, msg);\n return;\n }\n // Invoke the message hooks starting with the newest first.\n let passed = every(retro(hooks), hook => {\n return hook ? invokeHook(hook, handler, msg) : true;\n });\n // Invoke the handler if the message passes all hooks.\n if (passed) {\n invokeHandler(handler, msg);\n }\n }\n MessageLoop.sendMessage = sendMessage;\n /**\n * Post a message to a message handler to process in the future.\n *\n * @param handler - The handler which should process the message.\n *\n * @param msg - The message to post to the handler.\n *\n * #### Notes\n * The message will be conflated with the pending posted messages for\n * the handler, if possible. If the message is not conflated, it will\n * be queued for normal delivery on the next cycle of the event loop.\n *\n * Exceptions in hooks and handlers will be caught and logged.\n */\n function postMessage(handler, msg) {\n // Handle the common case of a non-conflatable message.\n if (!msg.isConflatable) {\n enqueueMessage(handler, msg);\n return;\n }\n // Conflate the message with an existing message if possible.\n let conflated = some(messageQueue, posted => {\n if (posted.handler !== handler) {\n return false;\n }\n if (!posted.msg) {\n return false;\n }\n if (posted.msg.type !== msg.type) {\n return false;\n }\n if (!posted.msg.isConflatable) {\n return false;\n }\n return posted.msg.conflate(msg);\n });\n // Enqueue the message if it was not conflated.\n if (!conflated) {\n enqueueMessage(handler, msg);\n }\n }\n MessageLoop.postMessage = postMessage;\n /**\n * Install a message hook for a message handler.\n *\n * @param handler - The message handler of interest.\n *\n * @param hook - The message hook to install.\n *\n * #### Notes\n * A message hook is invoked before a message is delivered to the\n * handler. If the hook returns `false`, no other hooks will be\n * invoked and the message will not be delivered to the handler.\n *\n * The most recently installed message hook is executed first.\n *\n * If the hook is already installed, this is a no-op.\n */\n function installMessageHook(handler, hook) {\n // Look up the hooks for the handler.\n let hooks = messageHooks.get(handler);\n // Bail early if the hook is already installed.\n if (hooks && hooks.indexOf(hook) !== -1) {\n return;\n }\n // Add the hook to the end, so it will be the first to execute.\n if (!hooks) {\n messageHooks.set(handler, [hook]);\n }\n else {\n hooks.push(hook);\n }\n }\n MessageLoop.installMessageHook = installMessageHook;\n /**\n * Remove an installed message hook for a message handler.\n *\n * @param handler - The message handler of interest.\n *\n * @param hook - The message hook to remove.\n *\n * #### Notes\n * It is safe to call this function while the hook is executing.\n *\n * If the hook is not installed, this is a no-op.\n */\n function removeMessageHook(handler, hook) {\n // Lookup the hooks for the handler.\n let hooks = messageHooks.get(handler);\n // Bail early if the hooks do not exist.\n if (!hooks) {\n return;\n }\n // Lookup the index of the hook and bail if not found.\n let i = hooks.indexOf(hook);\n if (i === -1) {\n return;\n }\n // Clear the hook and schedule a cleanup of the array.\n hooks[i] = null;\n scheduleCleanup(hooks);\n }\n MessageLoop.removeMessageHook = removeMessageHook;\n /**\n * Clear all message data associated with a message handler.\n *\n * @param handler - The message handler of interest.\n *\n * #### Notes\n * This will clear all posted messages and hooks for the handler.\n */\n function clearData(handler) {\n // Lookup the hooks for the handler.\n let hooks = messageHooks.get(handler);\n // Clear all messsage hooks for the handler.\n if (hooks && hooks.length > 0) {\n ArrayExt.fill(hooks, null);\n scheduleCleanup(hooks);\n }\n // Clear all posted messages for the handler.\n for (const posted of messageQueue) {\n if (posted.handler === handler) {\n posted.handler = null;\n posted.msg = null;\n }\n }\n }\n MessageLoop.clearData = clearData;\n /**\n * Process the pending posted messages in the queue immediately.\n *\n * #### Notes\n * This function is useful when posted messages must be processed immediately.\n *\n * This function should normally not be needed, but it may be\n * required to work around certain browser idiosyncrasies.\n *\n * Recursing into this function is a no-op.\n */\n function flush() {\n // Bail if recursion is detected or if there is no pending task.\n if (flushGuard || pending === null) {\n return;\n }\n // Unschedule the pending loop task.\n pending();\n pending = null;\n // Run the message loop within the recursion guard.\n flushGuard = true;\n runMessageLoop();\n flushGuard = false;\n }\n MessageLoop.flush = flush;\n /**\n * Get the message loop exception handler.\n *\n * @returns The current exception handler.\n *\n * #### Notes\n * The default exception handler is `console.error`.\n */\n function getExceptionHandler() {\n return exceptionHandler;\n }\n MessageLoop.getExceptionHandler = getExceptionHandler;\n /**\n * Set the message loop exception handler.\n *\n * @param handler - The function to use as the exception handler.\n *\n * @returns The old exception handler.\n *\n * #### Notes\n * The exception handler is invoked when a message handler or a\n * message hook throws an exception.\n */\n function setExceptionHandler(handler) {\n let old = exceptionHandler;\n exceptionHandler = handler;\n return old;\n }\n MessageLoop.setExceptionHandler = setExceptionHandler;\n /**\n * The queue of posted message pairs.\n */\n const messageQueue = new LinkedList();\n /**\n * A mapping of handler to array of installed message hooks.\n */\n const messageHooks = new WeakMap();\n /**\n * A set of message hook arrays which are pending cleanup.\n */\n const dirtySet = new Set();\n /**\n * The message loop exception handler.\n */\n let exceptionHandler = (err) => {\n console.error(err);\n };\n /**\n * A guard flag to prevent flush recursion.\n */\n let flushGuard = false;\n /**\n * Invoke a message hook with the specified handler and message.\n *\n * Returns the result of the hook, or `true` if the hook throws.\n *\n * Exceptions in the hook will be caught and logged.\n */\n function invokeHook(hook, handler, msg) {\n let result = true;\n try {\n if (typeof hook === 'function') {\n result = hook(handler, msg);\n }\n else {\n result = hook.messageHook(handler, msg);\n }\n }\n catch (err) {\n exceptionHandler(err);\n }\n return result;\n }\n /**\n * Invoke a message handler with the specified message.\n *\n * Exceptions in the handler will be caught and logged.\n */\n function invokeHandler(handler, msg) {\n try {\n handler.processMessage(msg);\n }\n catch (err) {\n exceptionHandler(err);\n }\n }\n /**\n * Add a message to the end of the message queue.\n *\n * This will automatically schedule a run of the message loop.\n */\n function enqueueMessage(handler, msg) {\n // Add the posted message to the queue.\n messageQueue.addLast({ handler, msg });\n // Bail if a loop task is already pending.\n if (pending !== null) {\n return;\n }\n // Schedule a run of the message loop.\n pending = schedule(runMessageLoop);\n }\n /**\n * Run an iteration of the message loop.\n *\n * This will process all pending messages in the queue. If a message\n * is added to the queue while the message loop is running, it will\n * be processed on the next cycle of the loop.\n */\n function runMessageLoop() {\n // Clear the task so the next loop can be scheduled.\n pending = null;\n // If the message queue is empty, there is nothing else to do.\n if (messageQueue.isEmpty) {\n return;\n }\n // Add a sentinel value to the end of the queue. The queue will\n // only be processed up to the sentinel. Messages posted during\n // this cycle will execute on the next cycle.\n let sentinel = { handler: null, msg: null };\n messageQueue.addLast(sentinel);\n // Enter the message loop.\n // eslint-disable-next-line no-constant-condition\n while (true) {\n // Remove the first posted message in the queue.\n let posted = messageQueue.removeFirst();\n // If the value is the sentinel, exit the loop.\n if (posted === sentinel) {\n return;\n }\n // Dispatch the message if it has not been cleared.\n if (posted.handler && posted.msg) {\n sendMessage(posted.handler, posted.msg);\n }\n }\n }\n /**\n * Schedule a cleanup of a message hooks array.\n *\n * This will add the array to the dirty set and schedule a deferred\n * cleanup of the array contents. On cleanup, any `null` hook will\n * be removed from the array.\n */\n function scheduleCleanup(hooks) {\n if (dirtySet.size === 0) {\n schedule(cleanupDirtySet);\n }\n dirtySet.add(hooks);\n }\n /**\n * Cleanup the message hook arrays in the dirty set.\n *\n * This function should only be invoked asynchronously, when the\n * stack frame is guaranteed to not be on the path of user code.\n */\n function cleanupDirtySet() {\n dirtySet.forEach(cleanupHooks);\n dirtySet.clear();\n }\n /**\n * Cleanup the dirty hooks in a message hooks array.\n *\n * This will remove any `null` hook from the array.\n *\n * This function should only be invoked asynchronously, when the\n * stack frame is guaranteed to not be on the path of user code.\n */\n function cleanupHooks(hooks) {\n ArrayExt.removeAllWhere(hooks, isNull);\n }\n /**\n * Test whether a value is `null`.\n */\n function isNull(value) {\n return value === null;\n }\n})(MessageLoop || (MessageLoop = {}));\n\nexport { ConflatableMessage, Message, MessageLoop };\n//# sourceMappingURL=index.es6.js.map\n","// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * @packageDocumentation\n * @module properties\n */\n/**\n * A class which attaches a value to an external object.\n *\n * #### Notes\n * Attached properties are used to extend the state of an object with\n * semantic data from an unrelated class. They also encapsulate value\n * creation, coercion, and notification.\n *\n * Because attached property values are stored in a hash table, which\n * in turn is stored in a WeakMap keyed on the owner object, there is\n * non-trivial storage overhead involved in their use. The pattern is\n * therefore best used for the storage of rare data.\n */\nclass AttachedProperty {\n /**\n * Construct a new attached property.\n *\n * @param options - The options for initializing the property.\n */\n constructor(options) {\n this._pid = Private.nextPID();\n this.name = options.name;\n this._create = options.create;\n this._coerce = options.coerce || null;\n this._compare = options.compare || null;\n this._changed = options.changed || null;\n }\n /**\n * Get the current value of the property for a given owner.\n *\n * @param owner - The property owner of interest.\n *\n * @returns The current value of the property.\n *\n * #### Notes\n * If the value has not yet been set, the default value will be\n * computed and assigned as the current value of the property.\n */\n get(owner) {\n let value;\n let map = Private.ensureMap(owner);\n if (this._pid in map) {\n value = map[this._pid];\n }\n else {\n value = map[this._pid] = this._createValue(owner);\n }\n return value;\n }\n /**\n * Set the current value of the property for a given owner.\n *\n * @param owner - The property owner of interest.\n *\n * @param value - The value for the property.\n *\n * #### Notes\n * If the value has not yet been set, the default value will be\n * computed and used as the previous value for the comparison.\n */\n set(owner, value) {\n let oldValue;\n let map = Private.ensureMap(owner);\n if (this._pid in map) {\n oldValue = map[this._pid];\n }\n else {\n oldValue = map[this._pid] = this._createValue(owner);\n }\n let newValue = this._coerceValue(owner, value);\n this._maybeNotify(owner, oldValue, (map[this._pid] = newValue));\n }\n /**\n * Explicitly coerce the current property value for a given owner.\n *\n * @param owner - The property owner of interest.\n *\n * #### Notes\n * If the value has not yet been set, the default value will be\n * computed and used as the previous value for the comparison.\n */\n coerce(owner) {\n let oldValue;\n let map = Private.ensureMap(owner);\n if (this._pid in map) {\n oldValue = map[this._pid];\n }\n else {\n oldValue = map[this._pid] = this._createValue(owner);\n }\n let newValue = this._coerceValue(owner, oldValue);\n this._maybeNotify(owner, oldValue, (map[this._pid] = newValue));\n }\n /**\n * Get or create the default value for the given owner.\n */\n _createValue(owner) {\n let create = this._create;\n return create(owner);\n }\n /**\n * Coerce the value for the given owner.\n */\n _coerceValue(owner, value) {\n let coerce = this._coerce;\n return coerce ? coerce(owner, value) : value;\n }\n /**\n * Compare the old value and new value for equality.\n */\n _compareValue(oldValue, newValue) {\n let compare = this._compare;\n return compare ? compare(oldValue, newValue) : oldValue === newValue;\n }\n /**\n * Run the change notification if the given values are different.\n */\n _maybeNotify(owner, oldValue, newValue) {\n let changed = this._changed;\n if (changed && !this._compareValue(oldValue, newValue)) {\n changed(owner, oldValue, newValue);\n }\n }\n}\n/**\n * The namespace for the `AttachedProperty` class statics.\n */\n(function (AttachedProperty) {\n /**\n * Clear the stored property data for the given owner.\n *\n * @param owner - The property owner of interest.\n *\n * #### Notes\n * This will clear all property values for the owner, but it will\n * **not** run the change notification for any of the properties.\n */\n function clearData(owner) {\n Private.ownerData.delete(owner);\n }\n AttachedProperty.clearData = clearData;\n})(AttachedProperty || (AttachedProperty = {}));\n/**\n * The namespace for the module implementation details.\n */\nvar Private;\n(function (Private) {\n /**\n * A weak mapping of property owner to property map.\n */\n Private.ownerData = new WeakMap();\n /**\n * A function which computes successive unique property ids.\n */\n Private.nextPID = (() => {\n let id = 0;\n return () => {\n let rand = Math.random();\n let stem = `${rand}`.slice(2);\n return `pid-${stem}-${id++}`;\n };\n })();\n /**\n * Lookup the data map for the property owner.\n *\n * This will create the map if one does not already exist.\n */\n function ensureMap(owner) {\n let map = Private.ownerData.get(owner);\n if (map) {\n return map;\n }\n map = Object.create(null);\n Private.ownerData.set(owner, map);\n return map;\n }\n Private.ensureMap = ensureMap;\n})(Private || (Private = {}));\n\nexport { AttachedProperty };\n//# sourceMappingURL=index.es6.js.map\n","import { find, ArrayExt } from '@lumino/algorithm';\nimport { PromiseDelegate } from '@lumino/coreutils';\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * @packageDocumentation\n * @module signaling\n */\n/**\n * A concrete implementation of `ISignal`.\n *\n * #### Example\n * ```typescript\n * import { ISignal, Signal } from '@lumino/signaling';\n *\n * class SomeClass {\n *\n * constructor(name: string) {\n * this.name = name;\n * }\n *\n * readonly name: string;\n *\n * get valueChanged: ISignal {\n * return this._valueChanged;\n * }\n *\n * get value(): number {\n * return this._value;\n * }\n *\n * set value(value: number) {\n * if (value === this._value) {\n * return;\n * }\n * this._value = value;\n * this._valueChanged.emit(value);\n * }\n *\n * private _value = 0;\n * private _valueChanged = new Signal(this);\n * }\n *\n * function logger(sender: SomeClass, value: number): void {\n * console.log(sender.name, value);\n * }\n *\n * let m1 = new SomeClass('foo');\n * let m2 = new SomeClass('bar');\n *\n * m1.valueChanged.connect(logger);\n * m2.valueChanged.connect(logger);\n *\n * m1.value = 42; // logs: foo 42\n * m2.value = 17; // logs: bar 17\n * ```\n */\nclass Signal {\n /**\n * Construct a new signal.\n *\n * @param sender - The sender which owns the signal.\n */\n constructor(sender) {\n this.sender = sender;\n }\n /**\n * Connect a slot to the signal.\n *\n * @param slot - The slot to invoke when the signal is emitted.\n *\n * @param thisArg - The `this` context for the slot. If provided,\n * this must be a non-primitive object.\n *\n * @returns `true` if the connection succeeds, `false` otherwise.\n */\n connect(slot, thisArg) {\n return Private.connect(this, slot, thisArg);\n }\n /**\n * Disconnect a slot from the signal.\n *\n * @param slot - The slot to disconnect from the signal.\n *\n * @param thisArg - The `this` context for the slot. If provided,\n * this must be a non-primitive object.\n *\n * @returns `true` if the connection is removed, `false` otherwise.\n */\n disconnect(slot, thisArg) {\n return Private.disconnect(this, slot, thisArg);\n }\n /**\n * Emit the signal and invoke the connected slots.\n *\n * @param args - The args to pass to the connected slots.\n *\n * #### Notes\n * Slots are invoked synchronously in connection order.\n *\n * Exceptions thrown by connected slots will be caught and logged.\n */\n emit(args) {\n Private.emit(this, args);\n }\n}\n/**\n * The namespace for the `Signal` class statics.\n */\n(function (Signal) {\n /**\n * Remove all connections between a sender and receiver.\n *\n * @param sender - The sender object of interest.\n *\n * @param receiver - The receiver object of interest.\n *\n * #### Notes\n * If a `thisArg` is provided when connecting a signal, that object\n * is considered the receiver. Otherwise, the `slot` is considered\n * the receiver.\n */\n function disconnectBetween(sender, receiver) {\n Private.disconnectBetween(sender, receiver);\n }\n Signal.disconnectBetween = disconnectBetween;\n /**\n * Remove all connections where the given object is the sender.\n *\n * @param sender - The sender object of interest.\n */\n function disconnectSender(sender) {\n Private.disconnectSender(sender);\n }\n Signal.disconnectSender = disconnectSender;\n /**\n * Remove all connections where the given object is the receiver.\n *\n * @param receiver - The receiver object of interest.\n *\n * #### Notes\n * If a `thisArg` is provided when connecting a signal, that object\n * is considered the receiver. Otherwise, the `slot` is considered\n * the receiver.\n */\n function disconnectReceiver(receiver) {\n Private.disconnectReceiver(receiver);\n }\n Signal.disconnectReceiver = disconnectReceiver;\n /**\n * Remove all connections where an object is the sender or receiver.\n *\n * @param object - The object of interest.\n *\n * #### Notes\n * If a `thisArg` is provided when connecting a signal, that object\n * is considered the receiver. Otherwise, the `slot` is considered\n * the receiver.\n */\n function disconnectAll(object) {\n Private.disconnectAll(object);\n }\n Signal.disconnectAll = disconnectAll;\n /**\n * Clear all signal data associated with the given object.\n *\n * @param object - The object for which the data should be cleared.\n *\n * #### Notes\n * This removes all signal connections and any other signal data\n * associated with the object.\n */\n function clearData(object) {\n Private.disconnectAll(object);\n }\n Signal.clearData = clearData;\n /**\n * Get the signal exception handler.\n *\n * @returns The current exception handler.\n *\n * #### Notes\n * The default exception handler is `console.error`.\n */\n function getExceptionHandler() {\n return Private.exceptionHandler;\n }\n Signal.getExceptionHandler = getExceptionHandler;\n /**\n * Set the signal exception handler.\n *\n * @param handler - The function to use as the exception handler.\n *\n * @returns The old exception handler.\n *\n * #### Notes\n * The exception handler is invoked when a slot throws an exception.\n */\n function setExceptionHandler(handler) {\n let old = Private.exceptionHandler;\n Private.exceptionHandler = handler;\n return old;\n }\n Signal.setExceptionHandler = setExceptionHandler;\n})(Signal || (Signal = {}));\n/**\n * A concrete implementation of `IStream`.\n *\n * #### Example\n * ```typescript\n * import { IStream, Stream } from '@lumino/signaling';\n *\n * class SomeClass {\n *\n * constructor(name: string) {\n * this.name = name;\n * }\n *\n * readonly name: string;\n *\n * get pings(): IStream {\n * return this._pings;\n * }\n *\n * ping(value: string) {\n * this._pings.emit(value);\n * }\n *\n * private _pings = new Stream(this);\n * }\n *\n * let m1 = new SomeClass('foo');\n *\n * m1.pings.connect((_, value: string) => {\n * console.log('connect', value);\n * });\n *\n * void (async () => {\n * for await (const ping of m1.pings) {\n * console.log('iterator', ping);\n * }\n * })();\n *\n * m1.ping('alpha'); // logs: connect alpha\n * // logs: iterator alpha\n * m1.ping('beta'); // logs: connect beta\n * // logs: iterator beta\n * ```\n */\nclass Stream extends Signal {\n constructor() {\n super(...arguments);\n this._pending = new PromiseDelegate();\n }\n /**\n * Return an async iterator that yields every emission.\n */\n async *[Symbol.asyncIterator]() {\n let pending = this._pending;\n while (true) {\n try {\n const { args, next } = await pending.promise;\n pending = next;\n yield args;\n }\n catch (_) {\n return; // Any promise rejection stops the iterator.\n }\n }\n }\n /**\n * Emit the signal, invoke the connected slots, and yield the emission.\n *\n * @param args - The args to pass to the connected slots.\n */\n emit(args) {\n const pending = this._pending;\n const next = (this._pending = new PromiseDelegate());\n pending.resolve({ args, next });\n super.emit(args);\n }\n /**\n * Stop the stream's async iteration.\n */\n stop() {\n this._pending.promise.catch(() => undefined);\n this._pending.reject('stop');\n this._pending = new PromiseDelegate();\n }\n}\n/**\n * The namespace for the module implementation details.\n */\nvar Private;\n(function (Private) {\n /**\n * The signal exception handler function.\n */\n Private.exceptionHandler = (err) => {\n console.error(err);\n };\n /**\n * Connect a slot to a signal.\n *\n * @param signal - The signal of interest.\n *\n * @param slot - The slot to invoke when the signal is emitted.\n *\n * @param thisArg - The `this` context for the slot. If provided,\n * this must be a non-primitive object.\n *\n * @returns `true` if the connection succeeds, `false` otherwise.\n */\n function connect(signal, slot, thisArg) {\n // Coerce a `null` `thisArg` to `undefined`.\n thisArg = thisArg || undefined;\n // Ensure the sender's array of receivers is created.\n let receivers = receiversForSender.get(signal.sender);\n if (!receivers) {\n receivers = [];\n receiversForSender.set(signal.sender, receivers);\n }\n // Bail if a matching connection already exists.\n if (findConnection(receivers, signal, slot, thisArg)) {\n return false;\n }\n // Choose the best object for the receiver.\n let receiver = thisArg || slot;\n // Ensure the receiver's array of senders is created.\n let senders = sendersForReceiver.get(receiver);\n if (!senders) {\n senders = [];\n sendersForReceiver.set(receiver, senders);\n }\n // Create a new connection and add it to the end of each array.\n let connection = { signal, slot, thisArg };\n receivers.push(connection);\n senders.push(connection);\n // Indicate a successful connection.\n return true;\n }\n Private.connect = connect;\n /**\n * Disconnect a slot from a signal.\n *\n * @param signal - The signal of interest.\n *\n * @param slot - The slot to disconnect from the signal.\n *\n * @param thisArg - The `this` context for the slot. If provided,\n * this must be a non-primitive object.\n *\n * @returns `true` if the connection is removed, `false` otherwise.\n */\n function disconnect(signal, slot, thisArg) {\n // Coerce a `null` `thisArg` to `undefined`.\n thisArg = thisArg || undefined;\n // Lookup the list of receivers, and bail if none exist.\n let receivers = receiversForSender.get(signal.sender);\n if (!receivers || receivers.length === 0) {\n return false;\n }\n // Bail if no matching connection exits.\n let connection = findConnection(receivers, signal, slot, thisArg);\n if (!connection) {\n return false;\n }\n // Choose the best object for the receiver.\n let receiver = thisArg || slot;\n // Lookup the array of senders, which is now known to exist.\n let senders = sendersForReceiver.get(receiver);\n // Clear the connection and schedule cleanup of the arrays.\n connection.signal = null;\n scheduleCleanup(receivers);\n scheduleCleanup(senders);\n // Indicate a successful disconnection.\n return true;\n }\n Private.disconnect = disconnect;\n /**\n * Remove all connections between a sender and receiver.\n *\n * @param sender - The sender object of interest.\n *\n * @param receiver - The receiver object of interest.\n */\n function disconnectBetween(sender, receiver) {\n // If there are no receivers, there is nothing to do.\n let receivers = receiversForSender.get(sender);\n if (!receivers || receivers.length === 0) {\n return;\n }\n // If there are no senders, there is nothing to do.\n let senders = sendersForReceiver.get(receiver);\n if (!senders || senders.length === 0) {\n return;\n }\n // Clear each connection between the sender and receiver.\n for (const connection of senders) {\n // Skip connections which have already been cleared.\n if (!connection.signal) {\n continue;\n }\n // Clear the connection if it matches the sender.\n if (connection.signal.sender === sender) {\n connection.signal = null;\n }\n }\n // Schedule a cleanup of the senders and receivers.\n scheduleCleanup(receivers);\n scheduleCleanup(senders);\n }\n Private.disconnectBetween = disconnectBetween;\n /**\n * Remove all connections where the given object is the sender.\n *\n * @param sender - The sender object of interest.\n */\n function disconnectSender(sender) {\n // If there are no receivers, there is nothing to do.\n let receivers = receiversForSender.get(sender);\n if (!receivers || receivers.length === 0) {\n return;\n }\n // Clear each receiver connection.\n for (const connection of receivers) {\n // Skip connections which have already been cleared.\n if (!connection.signal) {\n continue;\n }\n // Choose the best object for the receiver.\n let receiver = connection.thisArg || connection.slot;\n // Clear the connection.\n connection.signal = null;\n // Cleanup the array of senders, which is now known to exist.\n scheduleCleanup(sendersForReceiver.get(receiver));\n }\n // Schedule a cleanup of the receivers.\n scheduleCleanup(receivers);\n }\n Private.disconnectSender = disconnectSender;\n /**\n * Remove all connections where the given object is the receiver.\n *\n * @param receiver - The receiver object of interest.\n */\n function disconnectReceiver(receiver) {\n // If there are no senders, there is nothing to do.\n let senders = sendersForReceiver.get(receiver);\n if (!senders || senders.length === 0) {\n return;\n }\n // Clear each sender connection.\n for (const connection of senders) {\n // Skip connections which have already been cleared.\n if (!connection.signal) {\n continue;\n }\n // Lookup the sender for the connection.\n let sender = connection.signal.sender;\n // Clear the connection.\n connection.signal = null;\n // Cleanup the array of receivers, which is now known to exist.\n scheduleCleanup(receiversForSender.get(sender));\n }\n // Schedule a cleanup of the list of senders.\n scheduleCleanup(senders);\n }\n Private.disconnectReceiver = disconnectReceiver;\n /**\n * Remove all connections where an object is the sender or receiver.\n *\n * @param object - The object of interest.\n */\n function disconnectAll(object) {\n // Remove all connections where the given object is the sender.\n disconnectSender(object);\n // Remove all connections where the given object is the receiver.\n disconnectReceiver(object);\n }\n Private.disconnectAll = disconnectAll;\n /**\n * Emit a signal and invoke its connected slots.\n *\n * @param signal - The signal of interest.\n *\n * @param args - The args to pass to the connected slots.\n *\n * #### Notes\n * Slots are invoked synchronously in connection order.\n *\n * Exceptions thrown by connected slots will be caught and logged.\n */\n function emit(signal, args) {\n // If there are no receivers, there is nothing to do.\n let receivers = receiversForSender.get(signal.sender);\n if (!receivers || receivers.length === 0) {\n return;\n }\n // Invoke the slots for connections with a matching signal.\n // Any connections added during emission are not invoked.\n for (let i = 0, n = receivers.length; i < n; ++i) {\n let connection = receivers[i];\n if (connection.signal === signal) {\n invokeSlot(connection, args);\n }\n }\n }\n Private.emit = emit;\n /**\n * A weak mapping of sender to array of receiver connections.\n */\n const receiversForSender = new WeakMap();\n /**\n * A weak mapping of receiver to array of sender connections.\n */\n const sendersForReceiver = new WeakMap();\n /**\n * A set of connection arrays which are pending cleanup.\n */\n const dirtySet = new Set();\n /**\n * A function to schedule an event loop callback.\n */\n const schedule = (() => {\n let ok = typeof requestAnimationFrame === 'function';\n return ok ? requestAnimationFrame : setImmediate;\n })();\n /**\n * Find a connection which matches the given parameters.\n */\n function findConnection(connections, signal, slot, thisArg) {\n return find(connections, connection => connection.signal === signal &&\n connection.slot === slot &&\n connection.thisArg === thisArg);\n }\n /**\n * Invoke a slot with the given parameters.\n *\n * The connection is assumed to be valid.\n *\n * Exceptions in the slot will be caught and logged.\n */\n function invokeSlot(connection, args) {\n let { signal, slot, thisArg } = connection;\n try {\n slot.call(thisArg, signal.sender, args);\n }\n catch (err) {\n Private.exceptionHandler(err);\n }\n }\n /**\n * Schedule a cleanup of a connection array.\n *\n * This will add the array to the dirty set and schedule a deferred\n * cleanup of the array contents. On cleanup, any connection with a\n * `null` signal will be removed from the array.\n */\n function scheduleCleanup(array) {\n if (dirtySet.size === 0) {\n schedule(cleanupDirtySet);\n }\n dirtySet.add(array);\n }\n /**\n * Cleanup the connection lists in the dirty set.\n *\n * This function should only be invoked asynchronously, when the\n * stack frame is guaranteed to not be on the path of user code.\n */\n function cleanupDirtySet() {\n dirtySet.forEach(cleanupConnections);\n dirtySet.clear();\n }\n /**\n * Cleanup the dirty connections in a connections array.\n *\n * This will remove any connection with a `null` signal.\n *\n * This function should only be invoked asynchronously, when the\n * stack frame is guaranteed to not be on the path of user code.\n */\n function cleanupConnections(connections) {\n ArrayExt.removeAllWhere(connections, isDeadConnection);\n }\n /**\n * Test whether a connection is dead.\n *\n * A dead connection has a `null` signal.\n */\n function isDeadConnection(connection) {\n return connection.signal === null;\n }\n})(Private || (Private = {}));\n\nexport { Signal, Stream };\n//# sourceMappingURL=index.es6.js.map\n","import { DisposableDelegate } from '@lumino/disposable';\n\n/**\n * An object which manages a drag-drop operation.\n *\n * A drag object dispatches four different events to drop targets:\n *\n * - `'lm-dragenter'` - Dispatched when the mouse enters the target\n * element. This event must be canceled in order to receive any\n * of the other events.\n *\n * - `'lm-dragover'` - Dispatched when the mouse moves over the drop\n * target. It must cancel the event and set the `dropAction` to one\n * of the supported actions in order to receive drop events.\n *\n * - `'lm-dragleave'` - Dispatched when the mouse leaves the target\n * element. This includes moving the mouse into child elements.\n *\n * - `'lm-drop'`- Dispatched when the mouse is released over the target\n * element when the target indicates an appropriate drop action. If\n * the event is canceled, the indicated drop action is returned to\n * the initiator through the resolved promise.\n *\n * A drag operation can be terminated at any time by pressing `Escape`\n * or by disposing the drag object.\n *\n * A drag object has the ability to automatically scroll a scrollable\n * element when the mouse is hovered near one of its edges. To enable\n * this, add the `data-lm-dragscroll` attribute to any element which\n * the drag object should consider for scrolling.\n *\n * #### Notes\n * This class is designed to be used when dragging and dropping custom\n * data *within* a single application. It is *not* a replacement for\n * the native drag-drop API. Instead, it provides an API which allows\n * drag operations to be initiated programmatically and enables the\n * transfer of arbitrary non-string objects; features which are not\n * possible with the native drag-drop API.\n */\nclass Drag {\n /**\n * Construct a new drag object.\n *\n * @param options - The options for initializing the drag.\n */\n constructor(options) {\n /**\n * The scroll loop handler function.\n */\n this._onScrollFrame = () => {\n // Bail early if there is no scroll target.\n if (!this._scrollTarget) {\n return;\n }\n // Unpack the scroll target.\n let { element, edge, distance } = this._scrollTarget;\n // Calculate the scroll delta using nonlinear acceleration.\n let d = Private.SCROLL_EDGE_SIZE - distance;\n let f = Math.pow(d / Private.SCROLL_EDGE_SIZE, 2);\n let s = Math.max(1, Math.round(f * Private.SCROLL_EDGE_SIZE));\n // Scroll the element in the specified direction.\n switch (edge) {\n case 'top':\n element.scrollTop -= s;\n break;\n case 'left':\n element.scrollLeft -= s;\n break;\n case 'right':\n element.scrollLeft += s;\n break;\n case 'bottom':\n element.scrollTop += s;\n break;\n }\n // Request the next cycle of the scroll loop.\n requestAnimationFrame(this._onScrollFrame);\n };\n this._disposed = false;\n this._dropAction = 'none';\n this._override = null;\n this._currentTarget = null;\n this._currentElement = null;\n this._promise = null;\n this._scrollTarget = null;\n this._resolve = null;\n this.document = options.document || document;\n this.mimeData = options.mimeData;\n this.dragImage = options.dragImage || null;\n this.proposedAction = options.proposedAction || 'copy';\n this.supportedActions = options.supportedActions || 'all';\n this.source = options.source || null;\n }\n /**\n * Dispose of the resources held by the drag object.\n *\n * #### Notes\n * This will cancel the drag operation if it is active.\n */\n dispose() {\n // Do nothing if the drag object is already disposed.\n if (this._disposed) {\n return;\n }\n this._disposed = true;\n // If there is a current target, dispatch a drag leave event.\n if (this._currentTarget) {\n let event = new PointerEvent('pointerup', {\n bubbles: true,\n cancelable: true,\n clientX: -1,\n clientY: -1\n });\n Private.dispatchDragLeave(this, this._currentTarget, null, event);\n }\n // Finalize the drag object with `'none'`.\n this._finalize('none');\n }\n /**\n * Test whether the drag object is disposed.\n */\n get isDisposed() {\n return this._disposed;\n }\n /**\n * Start the drag operation at the specified client position.\n *\n * @param clientX - The client X position for the drag start.\n *\n * @param clientY - The client Y position for the drag start.\n *\n * @returns A promise which resolves to the result of the drag.\n *\n * #### Notes\n * If the drag has already been started, the promise created by the\n * first call to `start` is returned.\n *\n * If the drag operation has ended, or if the drag object has been\n * disposed, the returned promise will resolve to `'none'`.\n *\n * The drag object will be automatically disposed when drag operation\n * completes. This means `Drag` objects are for single-use only.\n *\n * This method assumes the left mouse button is already held down.\n */\n start(clientX, clientY) {\n // If the drag object is already disposed, resolve to `none`.\n if (this._disposed) {\n return Promise.resolve('none');\n }\n // If the drag has already been started, return the promise.\n if (this._promise) {\n return this._promise;\n }\n // Install the document listeners for the drag object.\n this._addListeners();\n // Attach the drag image at the specified client position.\n this._attachDragImage(clientX, clientY);\n // Create the promise which will be resolved on completion.\n this._promise = new Promise(resolve => {\n this._resolve = resolve;\n });\n // Trigger a fake move event to kick off the drag operation.\n let event = new PointerEvent('pointermove', {\n bubbles: true,\n cancelable: true,\n clientX,\n clientY\n });\n document.dispatchEvent(event);\n // Return the pending promise for the drag operation.\n return this._promise;\n }\n /**\n * Handle the DOM events for the drag operation.\n *\n * @param event - The DOM event sent to the drag object.\n *\n * #### Notes\n * This method implements the DOM `EventListener` interface and is\n * called in response to events on the document. It should not be\n * called directly by user code.\n */\n handleEvent(event) {\n switch (event.type) {\n case 'pointermove':\n this._evtPointerMove(event);\n break;\n case 'pointerup':\n this._evtPointerUp(event);\n break;\n case 'keydown':\n this._evtKeyDown(event);\n break;\n default:\n // Stop all other events during drag-drop.\n event.preventDefault();\n event.stopPropagation();\n break;\n }\n }\n /**\n * Move the drag image element to the specified location.\n *\n * This is a no-op if there is no drag image element.\n */\n moveDragImage(clientX, clientY) {\n if (!this.dragImage) {\n return;\n }\n let style = this.dragImage.style;\n style.transform = `translate(${clientX}px, ${clientY}px)`;\n }\n /**\n * Handle the `'pointermove'` event for the drag object.\n */\n _evtPointerMove(event) {\n // Stop all input events during drag-drop.\n event.preventDefault();\n event.stopPropagation();\n // Update the current target node and dispatch enter/leave events.\n this._updateCurrentTarget(event);\n // Update the drag scroll element.\n this._updateDragScroll(event);\n // Move the drag image to the specified client position. This is\n // performed *after* dispatching to prevent unnecessary reflows.\n this.moveDragImage(event.clientX, event.clientY);\n }\n /**\n * Handle the `'pointerup'` event for the drag object.\n */\n _evtPointerUp(event) {\n // Stop all input events during drag-drop.\n event.preventDefault();\n event.stopPropagation();\n // Do nothing if the left button is not released.\n if (event.button !== 0) {\n return;\n }\n // Update the current target node and dispatch enter/leave events.\n // This prevents a subtle issue where the DOM mutates under the\n // cursor after the last move event but before the drop event.\n this._updateCurrentTarget(event);\n // If there is no current target, finalize with `'none'`.\n if (!this._currentTarget) {\n this._finalize('none');\n return;\n }\n // If the last drop action was `'none'`, dispatch a leave event\n // to the current target and finalize the drag with `'none'`.\n if (this._dropAction === 'none') {\n Private.dispatchDragLeave(this, this._currentTarget, null, event);\n this._finalize('none');\n return;\n }\n // Dispatch the drop event at the current target and finalize\n // with the resulting drop action.\n let action = Private.dispatchDrop(this, this._currentTarget, event);\n this._finalize(action);\n }\n /**\n * Handle the `'keydown'` event for the drag object.\n */\n _evtKeyDown(event) {\n // Stop all input events during drag-drop.\n event.preventDefault();\n event.stopPropagation();\n // Cancel the drag if `Escape` is pressed.\n if (event.keyCode === 27) {\n this.dispose();\n }\n }\n /**\n * Add the document event listeners for the drag object.\n */\n _addListeners() {\n document.addEventListener('pointerdown', this, true);\n document.addEventListener('pointermove', this, true);\n document.addEventListener('pointerup', this, true);\n document.addEventListener('pointerenter', this, true);\n document.addEventListener('pointerleave', this, true);\n document.addEventListener('pointerover', this, true);\n document.addEventListener('pointerout', this, true);\n document.addEventListener('keydown', this, true);\n document.addEventListener('keyup', this, true);\n document.addEventListener('keypress', this, true);\n document.addEventListener('contextmenu', this, true);\n }\n /**\n * Remove the document event listeners for the drag object.\n */\n _removeListeners() {\n document.removeEventListener('pointerdown', this, true);\n document.removeEventListener('pointermove', this, true);\n document.removeEventListener('pointerup', this, true);\n document.removeEventListener('pointerenter', this, true);\n document.removeEventListener('pointerleave', this, true);\n document.removeEventListener('pointerover', this, true);\n document.removeEventListener('pointerout', this, true);\n document.removeEventListener('keydown', this, true);\n document.removeEventListener('keyup', this, true);\n document.removeEventListener('keypress', this, true);\n document.removeEventListener('contextmenu', this, true);\n }\n /**\n * Update the drag scroll element under the mouse.\n */\n _updateDragScroll(event) {\n // Find the scroll target under the mouse.\n let target = Private.findScrollTarget(event);\n // Bail if there is nothing to scroll.\n if (!this._scrollTarget && !target) {\n return;\n }\n // Start the scroll loop if needed.\n if (!this._scrollTarget) {\n setTimeout(this._onScrollFrame, 500);\n }\n // Update the scroll target.\n this._scrollTarget = target;\n }\n /**\n * Update the current target node using the given mouse event.\n */\n _updateCurrentTarget(event) {\n // Fetch common local state.\n let prevTarget = this._currentTarget;\n let currTarget = this._currentTarget;\n let prevElem = this._currentElement;\n // Find the current indicated element at the given position.\n let currElem = Private.findElementBehindBackdrop(event, this.document);\n // Update the current element reference.\n this._currentElement = currElem;\n // If the indicated element changes from the previous iteration,\n // and is different from the current target, dispatch the exit\n // event to the target.\n if (currElem !== prevElem && currElem !== currTarget) {\n Private.dispatchDragExit(this, currTarget, currElem, event);\n }\n // If the indicated element changes from the previous iteration,\n // and is different from the current target, dispatch the enter\n // event and compute the new target element.\n if (currElem !== prevElem && currElem !== currTarget) {\n currTarget = Private.dispatchDragEnter(this, currElem, currTarget, event);\n }\n // If the current target element has changed, update the current\n // target reference and dispatch the leave event to the old target.\n if (currTarget !== prevTarget) {\n this._currentTarget = currTarget;\n Private.dispatchDragLeave(this, prevTarget, currTarget, event);\n }\n // Dispatch the drag over event and update the drop action.\n let action = Private.dispatchDragOver(this, currTarget, event);\n this._setDropAction(action);\n }\n /**\n * Attach the drag image element at the specified location.\n *\n * This is a no-op if there is no drag image element.\n */\n _attachDragImage(clientX, clientY) {\n if (!this.dragImage) {\n return;\n }\n this.dragImage.classList.add('lm-mod-drag-image');\n let style = this.dragImage.style;\n style.pointerEvents = 'none';\n style.position = 'fixed';\n style.transform = `translate(${clientX}px, ${clientY}px)`;\n const body = this.document instanceof Document\n ? this.document.body\n : this.document.firstElementChild;\n body.appendChild(this.dragImage);\n }\n /**\n * Detach the drag image element from the DOM.\n *\n * This is a no-op if there is no drag image element.\n */\n _detachDragImage() {\n if (!this.dragImage) {\n return;\n }\n let parent = this.dragImage.parentNode;\n if (!parent) {\n return;\n }\n parent.removeChild(this.dragImage);\n }\n /**\n * Set the internal drop action state and update the drag cursor.\n */\n _setDropAction(action) {\n action = Private.validateAction(action, this.supportedActions);\n if (this._override && this._dropAction === action) {\n return;\n }\n switch (action) {\n case 'none':\n this._dropAction = action;\n this._override = Drag.overrideCursor('no-drop', this.document);\n break;\n case 'copy':\n this._dropAction = action;\n this._override = Drag.overrideCursor('copy', this.document);\n break;\n case 'link':\n this._dropAction = action;\n this._override = Drag.overrideCursor('alias', this.document);\n break;\n case 'move':\n this._dropAction = action;\n this._override = Drag.overrideCursor('move', this.document);\n break;\n }\n }\n /**\n * Finalize the drag operation and resolve the drag promise.\n */\n _finalize(action) {\n // Store the resolve function as a temp variable.\n let resolve = this._resolve;\n // Remove the document event listeners.\n this._removeListeners();\n // Detach the drag image.\n this._detachDragImage();\n // Dispose of the cursor override.\n if (this._override) {\n this._override.dispose();\n this._override = null;\n }\n // Clear the mime data.\n this.mimeData.clear();\n // Clear the rest of the internal drag state.\n this._disposed = true;\n this._dropAction = 'none';\n this._currentTarget = null;\n this._currentElement = null;\n this._scrollTarget = null;\n this._promise = null;\n this._resolve = null;\n // Finally, resolve the promise to the given drop action.\n if (resolve) {\n resolve(action);\n }\n }\n}\n/**\n * The namespace for the `Drag` class statics.\n */\n(function (Drag) {\n /**\n * A custom event used for drag-drop operations.\n *\n * #### Notes\n * In order to receive `'lm-dragover'`, `'lm-dragleave'`, or `'lm-drop'`\n * events, a drop target must cancel the `'lm-dragenter'` event by\n * calling the event's `preventDefault()` method.\n */\n class Event extends DragEvent {\n constructor(event, options) {\n super(options.type, {\n bubbles: true,\n cancelable: true,\n altKey: event.altKey,\n button: event.button,\n clientX: event.clientX,\n clientY: event.clientY,\n ctrlKey: event.ctrlKey,\n detail: 0,\n metaKey: event.metaKey,\n relatedTarget: options.related,\n screenX: event.screenX,\n screenY: event.screenY,\n shiftKey: event.shiftKey,\n view: window\n });\n const { drag } = options;\n this.dropAction = 'none';\n this.mimeData = drag.mimeData;\n this.proposedAction = drag.proposedAction;\n this.supportedActions = drag.supportedActions;\n this.source = drag.source;\n }\n }\n Drag.Event = Event;\n /**\n * Override the cursor icon for the entire document.\n *\n * @param cursor - The string representing the cursor style.\n *\n * @returns A disposable which will clear the override when disposed.\n *\n * #### Notes\n * The most recent call to `overrideCursor` takes precedence.\n * Disposing an old override has no effect on the current override.\n *\n * This utility function is used by the `Drag` class to override the\n * mouse cursor during a drag-drop operation, but it can also be used\n * by other classes to fix the cursor icon during normal mouse drags.\n *\n * #### Example\n * ```typescript\n * import { Drag } from '@lumino/dragdrop';\n *\n * // Force the cursor to be 'wait' for the entire document.\n * let override = Drag.overrideCursor('wait');\n *\n * // Clear the override by disposing the return value.\n * override.dispose();\n * ```\n */\n function overrideCursor(cursor, doc = document) {\n return Private.overrideCursor(cursor, doc);\n }\n Drag.overrideCursor = overrideCursor;\n})(Drag || (Drag = {}));\n/**\n * The namespace for the module implementation details.\n */\nvar Private;\n(function (Private) {\n /**\n * The size of a drag scroll edge, in pixels.\n */\n Private.SCROLL_EDGE_SIZE = 20;\n /**\n * Validate the given action is one of the supported actions.\n *\n * Returns the given action or `'none'` if the action is unsupported.\n */\n function validateAction(action, supported) {\n return actionTable[action] & supportedTable[supported] ? action : 'none';\n }\n Private.validateAction = validateAction;\n /**\n * Find the event target using pointer position if given, or otherwise\n * the central position of the backdrop.\n */\n function findElementBehindBackdrop(event, root = document) {\n if (event) {\n // Check if we already cached element for this event.\n if (lastElementEventSearch && event == lastElementEventSearch.event) {\n return lastElementEventSearch.element;\n }\n Private.cursorBackdrop.style.zIndex = '-1000';\n const element = root.elementFromPoint(event.clientX, event.clientY);\n Private.cursorBackdrop.style.zIndex = '';\n lastElementEventSearch = { event, element };\n return element;\n }\n else {\n const transform = Private.cursorBackdrop.style.transform;\n if (lastElementSearch && transform === lastElementSearch.transform) {\n return lastElementSearch.element;\n }\n const bbox = Private.cursorBackdrop.getBoundingClientRect();\n Private.cursorBackdrop.style.zIndex = '-1000';\n const element = root.elementFromPoint(bbox.left + bbox.width / 2, bbox.top + bbox.height / 2);\n Private.cursorBackdrop.style.zIndex = '';\n lastElementSearch = { transform, element };\n return element;\n }\n }\n Private.findElementBehindBackdrop = findElementBehindBackdrop;\n let lastElementEventSearch = null;\n let lastElementSearch = null;\n /**\n * Find the drag scroll target under the mouse, if any.\n */\n function findScrollTarget(event) {\n // Look up the client mouse position.\n let x = event.clientX;\n let y = event.clientY;\n // Get the element under the mouse.\n let element = findElementBehindBackdrop(event);\n // Search for a scrollable target based on the mouse position.\n // The null assert in third clause of for-loop is required due to:\n // https://github.com/Microsoft/TypeScript/issues/14143\n for (; element; element = element.parentElement) {\n // Ignore elements which are not marked as scrollable.\n if (!element.hasAttribute('data-lm-dragscroll')) {\n continue;\n }\n // Set up the coordinate offsets for the element.\n let offsetX = 0;\n let offsetY = 0;\n if (element === document.body) {\n offsetX = window.pageXOffset;\n offsetY = window.pageYOffset;\n }\n // Get the element bounds in viewport coordinates.\n let r = element.getBoundingClientRect();\n let top = r.top + offsetY;\n let left = r.left + offsetX;\n let right = left + r.width;\n let bottom = top + r.height;\n // Skip the element if it's not under the mouse.\n if (x < left || x >= right || y < top || y >= bottom) {\n continue;\n }\n // Compute the distance to each edge.\n let dl = x - left + 1;\n let dt = y - top + 1;\n let dr = right - x;\n let db = bottom - y;\n // Find the smallest of the edge distances.\n let distance = Math.min(dl, dt, dr, db);\n // Skip the element if the mouse is not within a scroll edge.\n if (distance > Private.SCROLL_EDGE_SIZE) {\n continue;\n }\n // Set up the edge result variable.\n let edge;\n // Find the edge for the computed distance.\n switch (distance) {\n case db:\n edge = 'bottom';\n break;\n case dt:\n edge = 'top';\n break;\n case dr:\n edge = 'right';\n break;\n case dl:\n edge = 'left';\n break;\n default:\n throw 'unreachable';\n }\n // Compute how much the element can scroll in width and height.\n let dsw = element.scrollWidth - element.clientWidth;\n let dsh = element.scrollHeight - element.clientHeight;\n // Determine if the element should be scrolled for the edge.\n let shouldScroll;\n switch (edge) {\n case 'top':\n shouldScroll = dsh > 0 && element.scrollTop > 0;\n break;\n case 'left':\n shouldScroll = dsw > 0 && element.scrollLeft > 0;\n break;\n case 'right':\n shouldScroll = dsw > 0 && element.scrollLeft < dsw;\n break;\n case 'bottom':\n shouldScroll = dsh > 0 && element.scrollTop < dsh;\n break;\n default:\n throw 'unreachable';\n }\n // Skip the element if it should not be scrolled.\n if (!shouldScroll) {\n continue;\n }\n // Return the drag scroll target.\n return { element, edge, distance };\n }\n // No drag scroll target was found.\n return null;\n }\n Private.findScrollTarget = findScrollTarget;\n /**\n * Dispatch a drag enter event to the indicated element.\n *\n * @param drag - The drag object associated with the action.\n *\n * @param currElem - The currently indicated element, or `null`. This\n * is the \"immediate user selection\" from the whatwg spec.\n *\n * @param currTarget - The current drag target element, or `null`. This\n * is the \"current target element\" from the whatwg spec.\n *\n * @param event - The mouse event related to the action.\n *\n * @returns The element to use as the current drag target. This is the\n * \"current target element\" from the whatwg spec, and may be `null`.\n *\n * #### Notes\n * This largely implements the drag enter portion of the whatwg spec:\n * https://html.spec.whatwg.org/multipage/interaction.html#drag-and-drop-processing-model\n */\n function dispatchDragEnter(drag, currElem, currTarget, event) {\n // If the current element is null, return null as the new target.\n if (!currElem) {\n return null;\n }\n // Dispatch a drag enter event to the current element.\n let dragEvent = new Drag.Event(event, {\n drag,\n related: currTarget,\n type: 'lm-dragenter'\n });\n let canceled = !currElem.dispatchEvent(dragEvent);\n // If the event was canceled, use the current element as the new target.\n if (canceled) {\n return currElem;\n }\n // If the current element is the document body, keep the original target.\n const body = drag.document instanceof Document\n ? drag.document.body\n : drag.document.firstElementChild;\n if (currElem === body) {\n return currTarget;\n }\n // Dispatch a drag enter event on the document body.\n dragEvent = new Drag.Event(event, {\n drag,\n related: currTarget,\n type: 'lm-dragenter'\n });\n body.dispatchEvent(dragEvent);\n // Ignore the event cancellation, and use the body as the new target.\n return body;\n }\n Private.dispatchDragEnter = dispatchDragEnter;\n /**\n * Dispatch a drag exit event to the indicated element.\n *\n * @param drag - The drag object associated with the action.\n *\n * @param prevTarget - The previous target element, or `null`. This\n * is the previous \"current target element\" from the whatwg spec.\n *\n * @param currTarget - The current drag target element, or `null`. This\n * is the \"current target element\" from the whatwg spec.\n *\n * @param event - The mouse event related to the action.\n *\n * #### Notes\n * This largely implements the drag exit portion of the whatwg spec:\n * https://html.spec.whatwg.org/multipage/interaction.html#drag-and-drop-processing-model\n */\n function dispatchDragExit(drag, prevTarget, currTarget, event) {\n // If the previous target is null, do nothing.\n if (!prevTarget) {\n return;\n }\n // Dispatch the drag exit event to the previous target.\n let dragEvent = new Drag.Event(event, {\n drag,\n related: currTarget,\n type: 'lm-dragexit'\n });\n prevTarget.dispatchEvent(dragEvent);\n }\n Private.dispatchDragExit = dispatchDragExit;\n /**\n * Dispatch a drag leave event to the indicated element.\n *\n * @param drag - The drag object associated with the action.\n *\n * @param prevTarget - The previous target element, or `null`. This\n * is the previous \"current target element\" from the whatwg spec.\n *\n * @param currTarget - The current drag target element, or `null`. This\n * is the \"current target element\" from the whatwg spec.\n *\n * @param event - The mouse event related to the action.\n *\n * #### Notes\n * This largely implements the drag leave portion of the whatwg spec:\n * https://html.spec.whatwg.org/multipage/interaction.html#drag-and-drop-processing-model\n */\n function dispatchDragLeave(drag, prevTarget, currTarget, event) {\n // If the previous target is null, do nothing.\n if (!prevTarget) {\n return;\n }\n // Dispatch the drag leave event to the previous target.\n let dragEvent = new Drag.Event(event, {\n drag,\n related: currTarget,\n type: 'lm-dragleave'\n });\n prevTarget.dispatchEvent(dragEvent);\n }\n Private.dispatchDragLeave = dispatchDragLeave;\n /**\n * Dispatch a drag over event to the indicated element.\n *\n * @param drag - The drag object associated with the action.\n *\n * @param currTarget - The current drag target element, or `null`. This\n * is the \"current target element\" from the whatwg spec.\n *\n * @param event - The mouse event related to the action.\n *\n * @returns The `DropAction` result of the drag over event.\n *\n * #### Notes\n * This largely implements the drag over portion of the whatwg spec:\n * https://html.spec.whatwg.org/multipage/interaction.html#drag-and-drop-processing-model\n */\n function dispatchDragOver(drag, currTarget, event) {\n // If there is no current target, the drop action is none.\n if (!currTarget) {\n return 'none';\n }\n // Dispatch the drag over event to the current target.\n let dragEvent = new Drag.Event(event, {\n drag,\n related: null,\n type: 'lm-dragover'\n });\n let canceled = !currTarget.dispatchEvent(dragEvent);\n // If the event was canceled, return the drop action result.\n if (canceled) {\n return dragEvent.dropAction;\n }\n // Otherwise, the effective drop action is none.\n return 'none';\n }\n Private.dispatchDragOver = dispatchDragOver;\n /**\n * Dispatch a drop event to the indicated element.\n *\n * @param drag - The drag object associated with the action.\n *\n * @param currTarget - The current drag target element, or `null`. This\n * is the \"current target element\" from the whatwg spec.\n *\n * @param event - The mouse event related to the action.\n *\n * @returns The `DropAction` result of the drop event.\n *\n * #### Notes\n * This largely implements the drag over portion of the whatwg spec:\n * https://html.spec.whatwg.org/multipage/interaction.html#drag-and-drop-processing-model\n */\n function dispatchDrop(drag, currTarget, event) {\n // If there is no current target, the drop action is none.\n if (!currTarget) {\n return 'none';\n }\n // Dispatch the drop event to the current target.\n let dragEvent = new Drag.Event(event, {\n drag,\n related: null,\n type: 'lm-drop'\n });\n let canceled = !currTarget.dispatchEvent(dragEvent);\n // If the event was canceled, return the drop action result.\n if (canceled) {\n return dragEvent.dropAction;\n }\n // Otherwise, the effective drop action is none.\n return 'none';\n }\n Private.dispatchDrop = dispatchDrop;\n /**\n * A lookup table from drop action to bit value.\n */\n const actionTable = {\n none: 0x0,\n copy: 0x1,\n link: 0x2,\n move: 0x4\n };\n /**\n * A lookup table from supported action to drop action bit mask.\n */\n const supportedTable = {\n none: actionTable['none'],\n copy: actionTable['copy'],\n link: actionTable['link'],\n move: actionTable['move'],\n 'copy-link': actionTable['copy'] | actionTable['link'],\n 'copy-move': actionTable['copy'] | actionTable['move'],\n 'link-move': actionTable['link'] | actionTable['move'],\n all: actionTable['copy'] | actionTable['link'] | actionTable['move']\n };\n /**\n * Implementation of `Drag.overrideCursor`.\n */\n function overrideCursor(cursor, doc = document) {\n let id = ++overrideCursorID;\n const body = doc instanceof Document\n ? doc.body\n : doc.firstElementChild;\n if (!Private.cursorBackdrop.isConnected) {\n // Hide the backdrop until the pointer moves to avoid issues with\n // native double click detection, used in e.g. datagrid editing.\n Private.cursorBackdrop.style.transform = 'scale(0)';\n body.appendChild(Private.cursorBackdrop);\n resetBackdropScroll();\n document.addEventListener('pointermove', alignBackdrop, {\n capture: true,\n passive: true\n });\n Private.cursorBackdrop.addEventListener('scroll', propagateBackdropScroll, {\n capture: true,\n passive: true\n });\n }\n Private.cursorBackdrop.style.cursor = cursor;\n return new DisposableDelegate(() => {\n if (id === overrideCursorID && Private.cursorBackdrop.isConnected) {\n document.removeEventListener('pointermove', alignBackdrop, true);\n Private.cursorBackdrop.removeEventListener('scroll', propagateBackdropScroll, true);\n body.removeChild(Private.cursorBackdrop);\n }\n });\n }\n Private.overrideCursor = overrideCursor;\n /**\n * Move cursor backdrop to match cursor position.\n */\n function alignBackdrop(event) {\n if (!Private.cursorBackdrop) {\n return;\n }\n Private.cursorBackdrop.style.transform = `translate(${event.clientX}px, ${event.clientY}px)`;\n }\n /**\n * Propagate the scroll event from the backdrop element to the scroll target.\n * The scroll target is defined by presence of `data-lm-dragscroll` attribute.\n */\n function propagateBackdropScroll(_event) {\n if (!Private.cursorBackdrop) {\n return;\n }\n // Get the element under behind the centre of the cursor backdrop\n // (essentially behind the cursor, but possibly a few pixels off).\n let element = findElementBehindBackdrop();\n if (!element) {\n return;\n }\n // Find scroll target.\n const scrollTarget = element.closest('[data-lm-dragscroll]');\n if (!scrollTarget) {\n return;\n }\n // Apply the scroll delta to the correct target.\n scrollTarget.scrollTop += Private.cursorBackdrop.scrollTop - backdropScrollOrigin;\n scrollTarget.scrollLeft += Private.cursorBackdrop.scrollLeft - backdropScrollOrigin;\n // Center the scroll position.\n resetBackdropScroll();\n }\n /**\n * Reset the backdrop scroll to allow further scrolling.\n */\n function resetBackdropScroll() {\n Private.cursorBackdrop.scrollTop = backdropScrollOrigin;\n Private.cursorBackdrop.scrollLeft = backdropScrollOrigin;\n }\n /**\n * The center of the backdrop node scroll area.\n */\n const backdropScrollOrigin = 500;\n /**\n * Create cursor backdrop node.\n */\n function createCursorBackdrop() {\n const backdrop = document.createElement('div');\n backdrop.classList.add('lm-cursor-backdrop');\n return backdrop;\n }\n /**\n * The internal id for the active cursor override.\n */\n let overrideCursorID = 0;\n /**\n * A backdrop node overriding pointer cursor.\n *\n * #### Notes\n * We use a backdrop node rather than setting the cursor directly on the body\n * because setting it on body requires more extensive style recalculation for\n * reliable application of the cursor, this is the cursor not being overriden\n * when over child elements with another style like `cursor: other!important`.\n */\n Private.cursorBackdrop = createCursorBackdrop();\n})(Private || (Private = {}));\n\nexport { Drag };\n//# sourceMappingURL=index.es6.js.map\n","import { Signal } from '@lumino/signaling';\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * @packageDocumentation\n * @module disposable\n */\n/**\n * A disposable object which delegates to a callback function.\n */\nclass DisposableDelegate {\n /**\n * Construct a new disposable delegate.\n *\n * @param fn - The callback function to invoke on dispose.\n */\n constructor(fn) {\n this._fn = fn;\n }\n /**\n * Test whether the delegate has been disposed.\n */\n get isDisposed() {\n return !this._fn;\n }\n /**\n * Dispose of the delegate and invoke the callback function.\n */\n dispose() {\n if (!this._fn) {\n return;\n }\n let fn = this._fn;\n this._fn = null;\n fn();\n }\n}\n/**\n * An observable disposable object which delegates to a callback function.\n */\nclass ObservableDisposableDelegate extends DisposableDelegate {\n constructor() {\n super(...arguments);\n this._disposed = new Signal(this);\n }\n /**\n * A signal emitted when the delegate is disposed.\n */\n get disposed() {\n return this._disposed;\n }\n /**\n * Dispose of the delegate and invoke the callback function.\n */\n dispose() {\n if (this.isDisposed) {\n return;\n }\n super.dispose();\n this._disposed.emit(undefined);\n Signal.clearData(this);\n }\n}\n/**\n * An object which manages a collection of disposable items.\n */\nclass DisposableSet {\n constructor() {\n this._isDisposed = false;\n this._items = new Set();\n }\n /**\n * Test whether the set has been disposed.\n */\n get isDisposed() {\n return this._isDisposed;\n }\n /**\n * Dispose of the set and the items it contains.\n *\n * #### Notes\n * Items are disposed in the order they are added to the set.\n */\n dispose() {\n if (this._isDisposed) {\n return;\n }\n this._isDisposed = true;\n this._items.forEach(item => {\n item.dispose();\n });\n this._items.clear();\n }\n /**\n * Test whether the set contains a specific item.\n *\n * @param item - The item of interest.\n *\n * @returns `true` if the set contains the item, `false` otherwise.\n */\n contains(item) {\n return this._items.has(item);\n }\n /**\n * Add a disposable item to the set.\n *\n * @param item - The item to add to the set.\n *\n * #### Notes\n * If the item is already contained in the set, this is a no-op.\n */\n add(item) {\n this._items.add(item);\n }\n /**\n * Remove a disposable item from the set.\n *\n * @param item - The item to remove from the set.\n *\n * #### Notes\n * If the item is not contained in the set, this is a no-op.\n */\n remove(item) {\n this._items.delete(item);\n }\n /**\n * Remove all items from the set.\n */\n clear() {\n this._items.clear();\n }\n}\n/**\n * The namespace for the `DisposableSet` class statics.\n */\n(function (DisposableSet) {\n /**\n * Create a disposable set from an iterable of items.\n *\n * @param items - The iterable object of interest.\n *\n * @returns A new disposable initialized with the given items.\n */\n function from(items) {\n let set = new DisposableSet();\n for (const item of items) {\n set.add(item);\n }\n return set;\n }\n DisposableSet.from = from;\n})(DisposableSet || (DisposableSet = {}));\n/**\n * An observable object which manages a collection of disposable items.\n */\nclass ObservableDisposableSet extends DisposableSet {\n constructor() {\n super(...arguments);\n this._disposed = new Signal(this);\n }\n /**\n * A signal emitted when the set is disposed.\n */\n get disposed() {\n return this._disposed;\n }\n /**\n * Dispose of the set and the items it contains.\n *\n * #### Notes\n * Items are disposed in the order they are added to the set.\n */\n dispose() {\n if (this.isDisposed) {\n return;\n }\n super.dispose();\n this._disposed.emit(undefined);\n Signal.clearData(this);\n }\n}\n/**\n * The namespace for the `ObservableDisposableSet` class statics.\n */\n(function (ObservableDisposableSet) {\n /**\n * Create an observable disposable set from an iterable of items.\n *\n * @param items - The iterable object of interest.\n *\n * @returns A new disposable initialized with the given items.\n */\n function from(items) {\n let set = new ObservableDisposableSet();\n for (const item of items) {\n set.add(item);\n }\n return set;\n }\n ObservableDisposableSet.from = from;\n})(ObservableDisposableSet || (ObservableDisposableSet = {}));\n\nexport { DisposableDelegate, DisposableSet, ObservableDisposableDelegate, ObservableDisposableSet };\n//# sourceMappingURL=index.es6.js.map\n","// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * @packageDocumentation\n * @module keyboard\n */\n/**\n * Get the global application keyboard layout instance.\n *\n * @returns The keyboard layout for use by the application.\n *\n * #### Notes\n * The default keyboard layout is US-English.\n */\nfunction getKeyboardLayout() {\n return Private.keyboardLayout;\n}\n/**\n * Set the global application keyboard layout instance.\n *\n * @param - The keyboard layout for use by the application.\n *\n * #### Notes\n * The keyboard layout should typically be set on application startup\n * to a layout which is appropriate for the user's system.\n */\nfunction setKeyboardLayout(layout) {\n Private.keyboardLayout = layout;\n}\n/**\n * A concrete implementation of {@link IKeyboardLayout} based on keycodes.\n *\n * The `keyCode` property of a `'keydown'` event is a browser and OS\n * specific representation of the physical key (not character) which\n * was pressed on a keyboard. While not the most convenient API, it\n * is currently the only one which works reliably on all browsers.\n *\n * This class accepts a user-defined mapping of keycode to key, which\n * allows for reliable shortcuts tailored to the user's system.\n */\nclass KeycodeLayout {\n /**\n * Construct a new keycode layout.\n *\n * @param name - The human readable name for the layout.\n *\n * @param codes - A mapping of keycode to key value.\n *\n * @param modifierKeys - Array of modifier key names\n */\n constructor(name, codes, modifierKeys = []) {\n this.name = name;\n this._codes = codes;\n this._keys = KeycodeLayout.extractKeys(codes);\n this._modifierKeys = KeycodeLayout.convertToKeySet(modifierKeys);\n }\n /**\n * Get an array of the key values supported by the layout.\n *\n * @returns A new array of the supported key values.\n */\n keys() {\n return Object.keys(this._keys);\n }\n /**\n * Test whether the given key is a valid value for the layout.\n *\n * @param key - The user provided key to test for validity.\n *\n * @returns `true` if the key is valid, `false` otherwise.\n */\n isValidKey(key) {\n return key in this._keys;\n }\n /**\n * Test whether the given key is a modifier key.\n *\n * @param key - The user provided key.\n *\n * @returns `true` if the key is a modifier key, `false` otherwise.\n */\n isModifierKey(key) {\n return key in this._modifierKeys;\n }\n /**\n * Get the key for a `'keydown'` event.\n *\n * @param event - The event object for a `'keydown'` event.\n *\n * @returns The associated key value, or an empty string if\n * the event does not represent a valid primary key.\n */\n keyForKeydownEvent(event) {\n return this._codes[event.keyCode] || '';\n }\n}\n/**\n * The namespace for the `KeycodeLayout` class statics.\n */\n(function (KeycodeLayout) {\n /**\n * Extract the set of keys from a code map.\n *\n * @param code - The code map of interest.\n *\n * @returns A set of the keys in the code map.\n */\n function extractKeys(codes) {\n let keys = Object.create(null);\n for (let c in codes) {\n keys[codes[c]] = true;\n }\n return keys;\n }\n KeycodeLayout.extractKeys = extractKeys;\n /**\n * Convert array of keys to a key set.\n *\n * @param keys - The array that needs to be converted\n *\n * @returns A set of the keys in the array.\n */\n function convertToKeySet(keys) {\n let keySet = Object(null);\n for (let i = 0, n = keys.length; i < n; ++i) {\n keySet[keys[i]] = true;\n }\n return keySet;\n }\n KeycodeLayout.convertToKeySet = convertToKeySet;\n})(KeycodeLayout || (KeycodeLayout = {}));\n/**\n * A keycode-based keyboard layout for US English keyboards.\n *\n * This layout is valid for the following OS/Browser combinations.\n *\n * - Windows\n * - Chrome\n * - Firefox\n * - IE\n *\n * - OSX\n * - Chrome\n * - Firefox\n * - Safari\n *\n * - Linux\n * - Chrome\n * - Firefox\n *\n * Other combinations may also work, but are untested.\n */\nconst EN_US = new KeycodeLayout('en-us', {\n 8: 'Backspace',\n 9: 'Tab',\n 13: 'Enter',\n 16: 'Shift',\n 17: 'Ctrl',\n 18: 'Alt',\n 19: 'Pause',\n 27: 'Escape',\n 32: 'Space',\n 33: 'PageUp',\n 34: 'PageDown',\n 35: 'End',\n 36: 'Home',\n 37: 'ArrowLeft',\n 38: 'ArrowUp',\n 39: 'ArrowRight',\n 40: 'ArrowDown',\n 45: 'Insert',\n 46: 'Delete',\n 48: '0',\n 49: '1',\n 50: '2',\n 51: '3',\n 52: '4',\n 53: '5',\n 54: '6',\n 55: '7',\n 56: '8',\n 57: '9',\n 59: ';',\n 61: '=',\n 65: 'A',\n 66: 'B',\n 67: 'C',\n 68: 'D',\n 69: 'E',\n 70: 'F',\n 71: 'G',\n 72: 'H',\n 73: 'I',\n 74: 'J',\n 75: 'K',\n 76: 'L',\n 77: 'M',\n 78: 'N',\n 79: 'O',\n 80: 'P',\n 81: 'Q',\n 82: 'R',\n 83: 'S',\n 84: 'T',\n 85: 'U',\n 86: 'V',\n 87: 'W',\n 88: 'X',\n 89: 'Y',\n 90: 'Z',\n 91: 'Meta',\n 93: 'ContextMenu',\n 96: '0',\n 97: '1',\n 98: '2',\n 99: '3',\n 100: '4',\n 101: '5',\n 102: '6',\n 103: '7',\n 104: '8',\n 105: '9',\n 106: '*',\n 107: '+',\n 109: '-',\n 110: '.',\n 111: '/',\n 112: 'F1',\n 113: 'F2',\n 114: 'F3',\n 115: 'F4',\n 116: 'F5',\n 117: 'F6',\n 118: 'F7',\n 119: 'F8',\n 120: 'F9',\n 121: 'F10',\n 122: 'F11',\n 123: 'F12',\n 173: '-',\n 186: ';',\n 187: '=',\n 188: ',',\n 189: '-',\n 190: '.',\n 191: '/',\n 192: '`',\n 219: '[',\n 220: '\\\\',\n 221: ']',\n 222: \"'\",\n 224: 'Meta' // firefox\n}, ['Shift', 'Ctrl', 'Alt', 'Meta'] // modifier keys\n);\n/**\n * The namespace for the module implementation details.\n */\nvar Private;\n(function (Private) {\n /**\n * The global keyboard layout instance.\n */\n Private.keyboardLayout = EN_US;\n})(Private || (Private = {}));\n\nexport { EN_US, KeycodeLayout, getKeyboardLayout, setKeyboardLayout };\n//# sourceMappingURL=index.es6.js.map\n","import { ArrayExt } from '@lumino/algorithm';\nimport { JSONExt } from '@lumino/coreutils';\nimport { DisposableDelegate } from '@lumino/disposable';\nimport { Platform, Selector } from '@lumino/domutils';\nimport { getKeyboardLayout } from '@lumino/keyboard';\nimport { Signal } from '@lumino/signaling';\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * @packageDocumentation\n * @module commands\n */\n/**\n * An object which manages a collection of commands.\n *\n * #### Notes\n * A command registry can be used to populate a variety of action-based\n * widgets, such as command palettes, menus, and toolbars.\n */\nclass CommandRegistry {\n constructor() {\n this._timerID = 0;\n this._replaying = false;\n this._keystrokes = [];\n this._keydownEvents = [];\n this._keyBindings = [];\n this._exactKeyMatch = null;\n this._commands = new Map();\n this._commandChanged = new Signal(this);\n this._commandExecuted = new Signal(this);\n this._keyBindingChanged = new Signal(this);\n }\n /**\n * A signal emitted when a command has changed.\n *\n * #### Notes\n * This signal is useful for visual representations of commands which\n * need to refresh when the state of a relevant command has changed.\n */\n get commandChanged() {\n return this._commandChanged;\n }\n /**\n * A signal emitted when a command has executed.\n *\n * #### Notes\n * Care should be taken when consuming this signal. The command system is used\n * by many components for many user actions. Handlers registered with this\n * signal must return quickly to ensure the overall application remains responsive.\n */\n get commandExecuted() {\n return this._commandExecuted;\n }\n /**\n * A signal emitted when a key binding is changed.\n */\n get keyBindingChanged() {\n return this._keyBindingChanged;\n }\n /**\n * A read-only array of the key bindings in the registry.\n */\n get keyBindings() {\n return this._keyBindings;\n }\n /**\n * List the ids of the registered commands.\n *\n * @returns A new array of the registered command ids.\n */\n listCommands() {\n return Array.from(this._commands.keys());\n }\n /**\n * Test whether a specific command is registered.\n *\n * @param id - The id of the command of interest.\n *\n * @returns `true` if the command is registered, `false` otherwise.\n */\n hasCommand(id) {\n return this._commands.has(id);\n }\n /**\n * Add a command to the registry.\n *\n * @param id - The unique id of the command.\n *\n * @param options - The options for the command.\n *\n * @returns A disposable which will remove the command.\n *\n * @throws An error if the given `id` is already registered.\n */\n addCommand(id, options) {\n // Throw an error if the id is already registered.\n if (this._commands.has(id)) {\n throw new Error(`Command '${id}' already registered.`);\n }\n // Add the command to the registry.\n this._commands.set(id, Private.createCommand(options));\n // Emit the `commandChanged` signal.\n this._commandChanged.emit({ id, type: 'added' });\n // Return a disposable which will remove the command.\n return new DisposableDelegate(() => {\n // Remove the command from the registry.\n this._commands.delete(id);\n // Emit the `commandChanged` signal.\n this._commandChanged.emit({ id, type: 'removed' });\n });\n }\n /**\n * Notify listeners that the state of a command has changed.\n *\n * @param id - The id of the command which has changed. If more than\n * one command has changed, this argument should be omitted.\n *\n * @throws An error if the given `id` is not registered.\n *\n * #### Notes\n * This method should be called by the command author whenever the\n * application state changes such that the results of the command\n * metadata functions may have changed.\n *\n * This will cause the `commandChanged` signal to be emitted.\n */\n notifyCommandChanged(id) {\n if (id !== undefined && !this._commands.has(id)) {\n throw new Error(`Command '${id}' is not registered.`);\n }\n this._commandChanged.emit({ id, type: id ? 'changed' : 'many-changed' });\n }\n /**\n * Get the description for a specific command.\n *\n * @param id - The id of the command of interest.\n *\n * @param args - The arguments for the command.\n *\n * @returns The description for the command.\n */\n describedBy(id, args = JSONExt.emptyObject) {\n var _a;\n let cmd = this._commands.get(id);\n return Promise.resolve((_a = cmd === null || cmd === void 0 ? void 0 : cmd.describedBy.call(undefined, args)) !== null && _a !== void 0 ? _a : { args: null });\n }\n /**\n * Get the display label for a specific command.\n *\n * @param id - The id of the command of interest.\n *\n * @param args - The arguments for the command.\n *\n * @returns The display label for the command, or an empty string\n * if the command is not registered.\n */\n label(id, args = JSONExt.emptyObject) {\n var _a;\n let cmd = this._commands.get(id);\n return (_a = cmd === null || cmd === void 0 ? void 0 : cmd.label.call(undefined, args)) !== null && _a !== void 0 ? _a : '';\n }\n /**\n * Get the mnemonic index for a specific command.\n *\n * @param id - The id of the command of interest.\n *\n * @param args - The arguments for the command.\n *\n * @returns The mnemonic index for the command, or `-1` if the\n * command is not registered.\n */\n mnemonic(id, args = JSONExt.emptyObject) {\n let cmd = this._commands.get(id);\n return cmd ? cmd.mnemonic.call(undefined, args) : -1;\n }\n /**\n * Get the icon renderer for a specific command.\n *\n * DEPRECATED: if set to a string value, the .icon field will\n * function as an alias for the .iconClass field, for backwards\n * compatibility. In the future when this is removed, the default\n * return type will become undefined.\n *\n * @param id - The id of the command of interest.\n *\n * @param args - The arguments for the command.\n *\n * @returns The icon renderer for the command or `undefined`.\n */\n icon(id, args = JSONExt.emptyObject) {\n var _a;\n return (_a = this._commands.get(id)) === null || _a === void 0 ? void 0 : _a.icon.call(undefined, args);\n }\n /**\n * Get the icon class for a specific command.\n *\n * @param id - The id of the command of interest.\n *\n * @param args - The arguments for the command.\n *\n * @returns The icon class for the command, or an empty string if\n * the command is not registered.\n */\n iconClass(id, args = JSONExt.emptyObject) {\n let cmd = this._commands.get(id);\n return cmd ? cmd.iconClass.call(undefined, args) : '';\n }\n /**\n * Get the icon label for a specific command.\n *\n * @param id - The id of the command of interest.\n *\n * @param args - The arguments for the command.\n *\n * @returns The icon label for the command, or an empty string if\n * the command is not registered.\n */\n iconLabel(id, args = JSONExt.emptyObject) {\n let cmd = this._commands.get(id);\n return cmd ? cmd.iconLabel.call(undefined, args) : '';\n }\n /**\n * Get the short form caption for a specific command.\n *\n * @param id - The id of the command of interest.\n *\n * @param args - The arguments for the command.\n *\n * @returns The caption for the command, or an empty string if the\n * command is not registered.\n */\n caption(id, args = JSONExt.emptyObject) {\n let cmd = this._commands.get(id);\n return cmd ? cmd.caption.call(undefined, args) : '';\n }\n /**\n * Get the usage help text for a specific command.\n *\n * @param id - The id of the command of interest.\n *\n * @param args - The arguments for the command.\n *\n * @returns The usage text for the command, or an empty string if\n * the command is not registered.\n */\n usage(id, args = JSONExt.emptyObject) {\n let cmd = this._commands.get(id);\n return cmd ? cmd.usage.call(undefined, args) : '';\n }\n /**\n * Get the extra class name for a specific command.\n *\n * @param id - The id of the command of interest.\n *\n * @param args - The arguments for the command.\n *\n * @returns The class name for the command, or an empty string if\n * the command is not registered.\n */\n className(id, args = JSONExt.emptyObject) {\n let cmd = this._commands.get(id);\n return cmd ? cmd.className.call(undefined, args) : '';\n }\n /**\n * Get the dataset for a specific command.\n *\n * @param id - The id of the command of interest.\n *\n * @param args - The arguments for the command.\n *\n * @returns The dataset for the command, or an empty dataset if\n * the command is not registered.\n */\n dataset(id, args = JSONExt.emptyObject) {\n let cmd = this._commands.get(id);\n return cmd ? cmd.dataset.call(undefined, args) : {};\n }\n /**\n * Test whether a specific command is enabled.\n *\n * @param id - The id of the command of interest.\n *\n * @param args - The arguments for the command.\n *\n * @returns A boolean indicating whether the command is enabled,\n * or `false` if the command is not registered.\n */\n isEnabled(id, args = JSONExt.emptyObject) {\n let cmd = this._commands.get(id);\n return cmd ? cmd.isEnabled.call(undefined, args) : false;\n }\n /**\n * Test whether a specific command is toggled.\n *\n * @param id - The id of the command of interest.\n *\n * @param args - The arguments for the command.\n *\n * @returns A boolean indicating whether the command is toggled,\n * or `false` if the command is not registered.\n */\n isToggled(id, args = JSONExt.emptyObject) {\n let cmd = this._commands.get(id);\n return cmd ? cmd.isToggled.call(undefined, args) : false;\n }\n /**\n * Test whether a specific command is toggleable.\n *\n * @param id - The id of the command of interest.\n *\n * @param args - The arguments for the command.\n *\n * @returns A boolean indicating whether the command is toggleable,\n * or `false` if the command is not registered.\n */\n isToggleable(id, args = JSONExt.emptyObject) {\n let cmd = this._commands.get(id);\n return cmd ? cmd.isToggleable : false;\n }\n /**\n * Test whether a specific command is visible.\n *\n * @param id - The id of the command of interest.\n *\n * @param args - The arguments for the command.\n *\n * @returns A boolean indicating whether the command is visible,\n * or `false` if the command is not registered.\n */\n isVisible(id, args = JSONExt.emptyObject) {\n let cmd = this._commands.get(id);\n return cmd ? cmd.isVisible.call(undefined, args) : false;\n }\n /**\n * Execute a specific command.\n *\n * @param id - The id of the command of interest.\n *\n * @param args - The arguments for the command.\n *\n * @returns A promise which resolves with the result of the command.\n *\n * #### Notes\n * The promise will reject if the command throws an exception,\n * or if the command is not registered.\n */\n execute(id, args = JSONExt.emptyObject) {\n // Reject if the command is not registered.\n let cmd = this._commands.get(id);\n if (!cmd) {\n return Promise.reject(new Error(`Command '${id}' not registered.`));\n }\n // Execute the command and reject if an exception is thrown.\n let value;\n try {\n value = cmd.execute.call(undefined, args);\n }\n catch (err) {\n value = Promise.reject(err);\n }\n // Create the return promise which resolves the result.\n let result = Promise.resolve(value);\n // Emit the command executed signal.\n this._commandExecuted.emit({ id, args, result });\n // Return the result promise to the caller.\n return result;\n }\n /**\n * Add a key binding to the registry.\n *\n * @param options - The options for creating the key binding.\n *\n * @returns A disposable which removes the added key binding.\n *\n * #### Notes\n * If multiple key bindings are registered for the same sequence, the\n * binding with the highest selector specificity is executed first. A\n * tie is broken by using the most recently added key binding.\n *\n * Ambiguous key bindings are resolved with a timeout. As an example,\n * suppose two key bindings are registered: one with the key sequence\n * `['Ctrl D']`, and another with `['Ctrl D', 'Ctrl W']`. If the user\n * presses `Ctrl D`, the first binding cannot be immediately executed\n * since the user may intend to complete the chord with `Ctrl W`. For\n * such cases, a timer is used to allow the chord to be completed. If\n * the chord is not completed before the timeout, the first binding\n * is executed.\n */\n addKeyBinding(options) {\n // Create the binding for the given options.\n let binding = Private.createKeyBinding(options);\n // Add the key binding to the bindings array.\n this._keyBindings.push(binding);\n // Emit the `bindingChanged` signal.\n this._keyBindingChanged.emit({ binding, type: 'added' });\n // Return a disposable which will remove the binding.\n return new DisposableDelegate(() => {\n // Remove the binding from the array.\n ArrayExt.removeFirstOf(this._keyBindings, binding);\n // Emit the `bindingChanged` signal.\n this._keyBindingChanged.emit({ binding, type: 'removed' });\n });\n }\n /**\n * Process a `'keydown'` event and invoke a matching key binding.\n *\n * @param event - The event object for a `'keydown'` event.\n *\n * #### Notes\n * This should be called in response to a `'keydown'` event in order\n * to invoke the command for the best matching key binding.\n *\n * The registry **does not** install its own listener for `'keydown'`\n * events. This allows the application full control over the nodes\n * and phase for which the registry processes `'keydown'` events.\n *\n * When the keydown event is processed, if the event target or any of its\n * ancestor nodes has a `data-lm-suppress-shortcuts` attribute, its keydown\n * events will not invoke commands.\n */\n processKeydownEvent(event) {\n // Bail immediately if playing back keystrokes.\n if (this._replaying || CommandRegistry.isModifierKeyPressed(event)) {\n return;\n }\n // Get the normalized keystroke for the event.\n let keystroke = CommandRegistry.keystrokeForKeydownEvent(event);\n // If the keystroke is not valid for the keyboard layout, replay\n // any suppressed events and clear the pending state.\n if (!keystroke) {\n this._replayKeydownEvents();\n this._clearPendingState();\n return;\n }\n // Add the keystroke to the current key sequence.\n this._keystrokes.push(keystroke);\n // Find the exact and partial matches for the key sequence.\n let { exact, partial } = Private.matchKeyBinding(this._keyBindings, this._keystrokes, event);\n // If there is no exact match and no partial match, replay\n // any suppressed events and clear the pending state.\n if (!exact && !partial) {\n this._replayKeydownEvents();\n this._clearPendingState();\n return;\n }\n // Stop propagation of the event. If there is only a partial match,\n // the event will be replayed if a final exact match never occurs.\n event.preventDefault();\n event.stopPropagation();\n // If there is an exact match but no partial match, the exact match\n // can be dispatched immediately. The pending state is cleared so\n // the next key press starts from the default state.\n if (exact && !partial) {\n this._executeKeyBinding(exact);\n this._clearPendingState();\n return;\n }\n // If there is both an exact match and a partial match, the exact\n // match is stored for future dispatch in case the timer expires\n // before a more specific match is triggered.\n if (exact) {\n this._exactKeyMatch = exact;\n }\n // Store the event for possible playback in the future.\n this._keydownEvents.push(event);\n // (Re)start the timer to dispatch the most recent exact match\n // in case the partial match fails to result in an exact match.\n this._startTimer();\n }\n /**\n * Start or restart the pending timeout.\n */\n _startTimer() {\n this._clearTimer();\n this._timerID = window.setTimeout(() => {\n this._onPendingTimeout();\n }, Private.CHORD_TIMEOUT);\n }\n /**\n * Clear the pending timeout.\n */\n _clearTimer() {\n if (this._timerID !== 0) {\n clearTimeout(this._timerID);\n this._timerID = 0;\n }\n }\n /**\n * Replay the keydown events which were suppressed.\n */\n _replayKeydownEvents() {\n if (this._keydownEvents.length === 0) {\n return;\n }\n this._replaying = true;\n this._keydownEvents.forEach(Private.replayKeyEvent);\n this._replaying = false;\n }\n /**\n * Execute the command for the given key binding.\n *\n * If the command is missing or disabled, a warning will be logged.\n */\n _executeKeyBinding(binding) {\n let { command, args } = binding;\n let newArgs = {\n _luminoEvent: { type: 'keybinding', keys: binding.keys },\n ...args\n };\n if (!this.hasCommand(command) || !this.isEnabled(command, newArgs)) {\n let word = this.hasCommand(command) ? 'enabled' : 'registered';\n let keys = binding.keys.join(', ');\n let msg1 = `Cannot execute key binding '${keys}':`;\n let msg2 = `command '${command}' is not ${word}.`;\n console.warn(`${msg1} ${msg2}`);\n return;\n }\n this.execute(command, newArgs);\n }\n /**\n * Clear the internal pending state.\n */\n _clearPendingState() {\n this._clearTimer();\n this._exactKeyMatch = null;\n this._keystrokes.length = 0;\n this._keydownEvents.length = 0;\n }\n /**\n * Handle the partial match timeout.\n */\n _onPendingTimeout() {\n this._timerID = 0;\n if (this._exactKeyMatch) {\n this._executeKeyBinding(this._exactKeyMatch);\n }\n else {\n this._replayKeydownEvents();\n }\n this._clearPendingState();\n }\n}\n/**\n * The namespace for the `CommandRegistry` class statics.\n */\n(function (CommandRegistry) {\n /**\n * Parse a keystroke into its constituent components.\n *\n * @param keystroke - The keystroke of interest.\n *\n * @returns The parsed components of the keystroke.\n *\n * #### Notes\n * The keystroke should be of the form:\n * `[ [ [ ]]]`\n *\n * The supported modifiers are: `Accel`, `Alt`, `Cmd`, `Ctrl`, and\n * `Shift`. The `Accel` modifier is translated to `Cmd` on Mac and\n * `Ctrl` on all other platforms.\n *\n * The parsing is tolerant and will not throw exceptions. Notably:\n * - Duplicate modifiers are ignored.\n * - Extra primary keys are ignored.\n * - The order of modifiers and primary key is irrelevant.\n * - The keystroke parts should be separated by whitespace.\n * - The keystroke is case sensitive.\n */\n function parseKeystroke(keystroke) {\n let key = '';\n let alt = false;\n let cmd = false;\n let ctrl = false;\n let shift = false;\n for (let token of keystroke.split(/\\s+/)) {\n if (token === 'Accel') {\n if (Platform.IS_MAC) {\n cmd = true;\n }\n else {\n ctrl = true;\n }\n }\n else if (token === 'Alt') {\n alt = true;\n }\n else if (token === 'Cmd') {\n cmd = true;\n }\n else if (token === 'Ctrl') {\n ctrl = true;\n }\n else if (token === 'Shift') {\n shift = true;\n }\n else if (token.length > 0) {\n key = token;\n }\n }\n return { cmd, ctrl, alt, shift, key };\n }\n CommandRegistry.parseKeystroke = parseKeystroke;\n /**\n * Normalize a keystroke into a canonical representation.\n *\n * @param keystroke - The keystroke of interest.\n *\n * @returns The normalized representation of the keystroke.\n *\n * #### Notes\n * This normalizes the keystroke by removing duplicate modifiers and\n * extra primary keys, and assembling the parts in a canonical order.\n *\n * The `Cmd` modifier is ignored on non-Mac platforms.\n */\n function normalizeKeystroke(keystroke) {\n let mods = '';\n let parts = parseKeystroke(keystroke);\n if (parts.ctrl) {\n mods += 'Ctrl ';\n }\n if (parts.alt) {\n mods += 'Alt ';\n }\n if (parts.shift) {\n mods += 'Shift ';\n }\n if (parts.cmd && Platform.IS_MAC) {\n mods += 'Cmd ';\n }\n return mods + parts.key;\n }\n CommandRegistry.normalizeKeystroke = normalizeKeystroke;\n /**\n * Get the platform-specific normalized keys for an options object.\n *\n * @param options - The options for the key binding.\n *\n * @returns Array of combined, normalized keys.\n */\n function normalizeKeys(options) {\n let keys;\n if (Platform.IS_WIN) {\n keys = options.winKeys || options.keys;\n }\n else if (Platform.IS_MAC) {\n keys = options.macKeys || options.keys;\n }\n else {\n keys = options.linuxKeys || options.keys;\n }\n return keys.map(normalizeKeystroke);\n }\n CommandRegistry.normalizeKeys = normalizeKeys;\n /**\n * Format keystrokes for display on the local system.\n *\n * If a list of keystrokes is provided, it will be displayed as\n * a comma-separated string\n *\n * @param keystroke The keystrokes to format\n * @returns The keystrokes representation\n */\n function formatKeystroke(keystroke) {\n return typeof keystroke === 'string'\n ? formatSingleKey(keystroke)\n : keystroke.map(formatSingleKey).join(', ');\n function formatSingleKey(key) {\n let mods = [];\n let separator = Platform.IS_MAC ? ' ' : '+';\n let parts = parseKeystroke(key);\n if (parts.ctrl) {\n mods.push('Ctrl');\n }\n if (parts.alt) {\n mods.push('Alt');\n }\n if (parts.shift) {\n mods.push('Shift');\n }\n if (Platform.IS_MAC && parts.cmd) {\n mods.push('Cmd');\n }\n mods.push(parts.key);\n return mods.map(Private.formatKey).join(separator);\n }\n }\n CommandRegistry.formatKeystroke = formatKeystroke;\n /**\n * Check if `'keydown'` event is caused by pressing a modifier key that should be ignored.\n *\n * @param event - The event object for a `'keydown'` event.\n *\n * @returns `true` if modifier key was pressed, `false` otherwise.\n */\n function isModifierKeyPressed(event) {\n let layout = getKeyboardLayout();\n let key = layout.keyForKeydownEvent(event);\n return layout.isModifierKey(key);\n }\n CommandRegistry.isModifierKeyPressed = isModifierKeyPressed;\n /**\n * Create a normalized keystroke for a `'keydown'` event.\n *\n * @param event - The event object for a `'keydown'` event.\n *\n * @returns A normalized keystroke, or an empty string if the event\n * does not represent a valid keystroke for the given layout.\n */\n function keystrokeForKeydownEvent(event) {\n let layout = getKeyboardLayout();\n let key = layout.keyForKeydownEvent(event);\n if (!key || layout.isModifierKey(key)) {\n return '';\n }\n let mods = [];\n if (event.ctrlKey) {\n mods.push('Ctrl');\n }\n if (event.altKey) {\n mods.push('Alt');\n }\n if (event.shiftKey) {\n mods.push('Shift');\n }\n if (event.metaKey && Platform.IS_MAC) {\n mods.push('Cmd');\n }\n mods.push(key);\n return mods.join(' ');\n }\n CommandRegistry.keystrokeForKeydownEvent = keystrokeForKeydownEvent;\n})(CommandRegistry || (CommandRegistry = {}));\n/**\n * The namespace for the module implementation details.\n */\nvar Private;\n(function (Private) {\n /**\n * The timeout in ms for triggering a key binding chord.\n */\n Private.CHORD_TIMEOUT = 1000;\n /**\n * Create a normalized command from an options object.\n */\n function createCommand(options) {\n return {\n execute: options.execute,\n describedBy: asFunc(typeof options.describedBy === 'function'\n ? options.describedBy\n : { args: null, ...options.describedBy }, () => {\n return { args: null };\n }),\n label: asFunc(options.label, emptyStringFunc),\n mnemonic: asFunc(options.mnemonic, negativeOneFunc),\n icon: asFunc(options.icon, undefinedFunc),\n iconClass: asFunc(options.iconClass, emptyStringFunc),\n iconLabel: asFunc(options.iconLabel, emptyStringFunc),\n caption: asFunc(options.caption, emptyStringFunc),\n usage: asFunc(options.usage, emptyStringFunc),\n className: asFunc(options.className, emptyStringFunc),\n dataset: asFunc(options.dataset, emptyDatasetFunc),\n isEnabled: options.isEnabled || trueFunc,\n isToggled: options.isToggled || falseFunc,\n isToggleable: options.isToggleable || !!options.isToggled,\n isVisible: options.isVisible || trueFunc\n };\n }\n Private.createCommand = createCommand;\n /**\n * Create a key binding object from key binding options.\n */\n function createKeyBinding(options) {\n return {\n keys: CommandRegistry.normalizeKeys(options),\n selector: validateSelector(options),\n command: options.command,\n args: options.args || JSONExt.emptyObject\n };\n }\n Private.createKeyBinding = createKeyBinding;\n /**\n * Find the key bindings which match a key sequence.\n *\n * This returns a match result which contains the best exact matching\n * binding, and a flag which indicates if there are partial matches.\n */\n function matchKeyBinding(bindings, keys, event) {\n // The current best exact match.\n let exact = null;\n // Whether a partial match has been found.\n let partial = false;\n // The match distance for the exact match.\n let distance = Infinity;\n // The specificity for the exact match.\n let specificity = 0;\n // Iterate over the bindings and search for the best match.\n for (let i = 0, n = bindings.length; i < n; ++i) {\n // Lookup the current binding.\n let binding = bindings[i];\n // Check whether the key binding sequence is a match.\n let sqm = matchSequence(binding.keys, keys);\n // If there is no match, the binding is ignored.\n if (sqm === 0 /* SequenceMatch.None */) {\n continue;\n }\n // If it is a partial match and no other partial match has been\n // found, ensure the selector matches and set the partial flag.\n if (sqm === 2 /* SequenceMatch.Partial */) {\n if (!partial && targetDistance(binding.selector, event) !== -1) {\n partial = true;\n }\n continue;\n }\n // Ignore the match if the selector doesn't match, or if the\n // matched node is farther away than the current best match.\n let td = targetDistance(binding.selector, event);\n if (td === -1 || td > distance) {\n continue;\n }\n // Get the specificity for the selector.\n let sp = Selector.calculateSpecificity(binding.selector);\n // Update the best match if this match is stronger.\n if (!exact || td < distance || sp >= specificity) {\n exact = binding;\n distance = td;\n specificity = sp;\n }\n }\n // Return the match result.\n return { exact, partial };\n }\n Private.matchKeyBinding = matchKeyBinding;\n /**\n * Replay a keyboard event.\n *\n * This synthetically dispatches a clone of the keyboard event.\n */\n function replayKeyEvent(event) {\n event.target.dispatchEvent(cloneKeyboardEvent(event));\n }\n Private.replayKeyEvent = replayKeyEvent;\n function formatKey(key) {\n if (Platform.IS_MAC) {\n return MAC_DISPLAY.hasOwnProperty(key) ? MAC_DISPLAY[key] : key;\n }\n else {\n return WIN_DISPLAY.hasOwnProperty(key) ? WIN_DISPLAY[key] : key;\n }\n }\n Private.formatKey = formatKey;\n const MAC_DISPLAY = {\n Backspace: '⌫',\n Tab: '⇥',\n Enter: '⏎',\n Shift: '⇧',\n Ctrl: '⌃',\n Alt: '⌥',\n Escape: '⎋',\n PageUp: '⇞',\n PageDown: '⇟',\n End: '↘',\n Home: '↖',\n ArrowLeft: '←',\n ArrowUp: '↑',\n ArrowRight: '→',\n ArrowDown: '↓',\n Delete: '⌦',\n Cmd: '⌘'\n };\n const WIN_DISPLAY = {\n Escape: 'Esc',\n PageUp: 'Page Up',\n PageDown: 'Page Down',\n ArrowLeft: 'Left',\n ArrowUp: 'Up',\n ArrowRight: 'Right',\n ArrowDown: 'Down',\n Delete: 'Del'\n };\n /**\n * A singleton empty string function.\n */\n const emptyStringFunc = () => '';\n /**\n * A singleton `-1` number function\n */\n const negativeOneFunc = () => -1;\n /**\n * A singleton true boolean function.\n */\n const trueFunc = () => true;\n /**\n * A singleton false boolean function.\n */\n const falseFunc = () => false;\n /**\n * A singleton empty dataset function.\n */\n const emptyDatasetFunc = () => ({});\n /**\n * A singleton undefined function\n */\n const undefinedFunc = () => undefined;\n /**\n * Cast a value or command func to a command func.\n */\n function asFunc(value, dfault) {\n if (value === undefined) {\n return dfault;\n }\n if (typeof value === 'function') {\n return value;\n }\n return () => value;\n }\n /**\n * Validate the selector for an options object.\n *\n * This returns the validated selector, or throws if the selector is\n * invalid or contains commas.\n */\n function validateSelector(options) {\n if (options.selector.indexOf(',') !== -1) {\n throw new Error(`Selector cannot contain commas: ${options.selector}`);\n }\n if (!Selector.isValid(options.selector)) {\n throw new Error(`Invalid selector: ${options.selector}`);\n }\n return options.selector;\n }\n /**\n * Test whether a key binding sequence matches a key sequence.\n *\n * Returns a `SequenceMatch` value indicating the type of match.\n */\n function matchSequence(bindKeys, userKeys) {\n if (bindKeys.length < userKeys.length) {\n return 0 /* SequenceMatch.None */;\n }\n for (let i = 0, n = userKeys.length; i < n; ++i) {\n if (bindKeys[i] !== userKeys[i]) {\n return 0 /* SequenceMatch.None */;\n }\n }\n if (bindKeys.length > userKeys.length) {\n return 2 /* SequenceMatch.Partial */;\n }\n return 1 /* SequenceMatch.Exact */;\n }\n /**\n * Find the distance from the target node to the first matching node.\n *\n * This traverses the event path from `target` to `currentTarget` and\n * computes the distance from `target` to the first node which matches\n * the CSS selector. If no match is found, `-1` is returned.\n */\n function targetDistance(selector, event) {\n let targ = event.target;\n let curr = event.currentTarget;\n for (let dist = 0; targ !== null; targ = targ.parentElement, ++dist) {\n if (targ.hasAttribute('data-lm-suppress-shortcuts')) {\n return -1;\n }\n if (Selector.matches(targ, selector)) {\n return dist;\n }\n if (targ === curr) {\n return -1;\n }\n }\n return -1;\n }\n /**\n * Clone a keyboard event.\n */\n function cloneKeyboardEvent(event) {\n // A custom event is required because Chrome nulls out the\n // `keyCode` field in user-generated `KeyboardEvent` types.\n let clone = document.createEvent('Event');\n let bubbles = event.bubbles || true;\n let cancelable = event.cancelable || true;\n clone.initEvent(event.type || 'keydown', bubbles, cancelable);\n clone.key = event.key || '';\n clone.keyCode = event.keyCode || 0;\n clone.which = event.keyCode || 0;\n clone.ctrlKey = event.ctrlKey || false;\n clone.altKey = event.altKey || false;\n clone.shiftKey = event.shiftKey || false;\n clone.metaKey = event.metaKey || false;\n clone.view = event.view || window;\n return clone;\n }\n})(Private || (Private = {}));\n\nexport { CommandRegistry };\n//# sourceMappingURL=index.es6.js.map\n","import { ArrayExt } from '@lumino/algorithm';\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * @packageDocumentation\n * @module virtualdom\n */\n/**\n * A virtual node which represents plain text content.\n *\n * #### Notes\n * User code will not typically create a `VirtualText` node directly.\n * Instead, the `h()` function will be used to create an element tree.\n */\nclass VirtualText {\n /**\n * Construct a new virtual text node.\n *\n * @param content - The text content for the node.\n */\n constructor(content) {\n /**\n * The type of the node.\n *\n * This value can be used as a type guard for discriminating the\n * `VirtualNode` union type.\n */\n this.type = 'text';\n this.content = content;\n }\n}\n/**\n * A virtual node which represents an HTML element.\n *\n * #### Notes\n * User code will not typically create a `VirtualElement` node directly.\n * Instead, the `h()` function will be used to create an element tree.\n */\nclass VirtualElement {\n /**\n * Construct a new virtual element node.\n *\n * @param tag - The element tag name.\n *\n * @param attrs - The element attributes.\n *\n * @param children - The element children.\n *\n * @param renderer - An optional custom renderer for the element.\n */\n constructor(tag, attrs, children, renderer) {\n /**\n * The type of the node.\n *\n * This value can be used as a type guard for discriminating the\n * `VirtualNode` union type.\n */\n this.type = 'element';\n this.tag = tag;\n this.attrs = attrs;\n this.children = children;\n this.renderer = renderer;\n }\n}\n/**\n * DEPRECATED - use VirtualElement with a defined renderer param instead.\n * This class is provided as a backwards compatibility shim\n *\n * A \"pass thru\" virtual node whose children are managed by a render and an\n * unrender callback. The intent of this flavor of virtual node is to make\n * it easy to blend other kinds of virtualdom (eg React) into Phosphor's\n * virtualdom.\n *\n * #### Notes\n * User code will not typically create a `VirtualElementPass` node directly.\n * Instead, the `hpass()` function will be used to create an element tree.\n */\nclass VirtualElementPass extends VirtualElement {\n /**\n * DEPRECATED - use VirtualElement with a defined renderer param instead\n *\n * Construct a new virtual element pass thru node.\n *\n * @param tag - the tag of the parent element of this node. Once the parent\n * element is rendered, it will be passed as an argument to\n * renderer.render\n *\n * @param attrs - attributes that will assigned to the\n * parent element\n *\n * @param renderer - an object with render and unrender\n * functions, each of which should take a single argument of type\n * HTMLElement and return nothing. If null, the parent element\n * will be rendered barren without any children.\n */\n constructor(tag, attrs, renderer) {\n super(tag, attrs, [], renderer || undefined);\n }\n}\nfunction h(tag) {\n let attrs = {};\n let renderer;\n let children = [];\n for (let i = 1, n = arguments.length; i < n; ++i) {\n // eslint-disable-next-line prefer-rest-params\n let arg = arguments[i];\n if (typeof arg === 'string') {\n children.push(new VirtualText(arg));\n }\n else if (arg instanceof VirtualText) {\n children.push(arg);\n }\n else if (arg instanceof VirtualElement) {\n children.push(arg);\n }\n else if (arg instanceof Array) {\n extend(children, arg);\n }\n else if ((i === 1 || i === 2) && arg && typeof arg === 'object') {\n if ('render' in arg) {\n renderer = arg;\n }\n else {\n attrs = arg;\n }\n }\n }\n return new VirtualElement(tag, attrs, children, renderer);\n function extend(array, values) {\n for (let child of values) {\n if (typeof child === 'string') {\n array.push(new VirtualText(child));\n }\n else if (child instanceof VirtualText) {\n array.push(child);\n }\n else if (child instanceof VirtualElement) {\n array.push(child);\n }\n }\n }\n}\n/**\n * The namespace for the `h` function statics.\n */\n(function (h) {\n h.a = h.bind(undefined, 'a');\n h.abbr = h.bind(undefined, 'abbr');\n h.address = h.bind(undefined, 'address');\n h.area = h.bind(undefined, 'area');\n h.article = h.bind(undefined, 'article');\n h.aside = h.bind(undefined, 'aside');\n h.audio = h.bind(undefined, 'audio');\n h.b = h.bind(undefined, 'b');\n h.bdi = h.bind(undefined, 'bdi');\n h.bdo = h.bind(undefined, 'bdo');\n h.blockquote = h.bind(undefined, 'blockquote');\n h.br = h.bind(undefined, 'br');\n h.button = h.bind(undefined, 'button');\n h.canvas = h.bind(undefined, 'canvas');\n h.caption = h.bind(undefined, 'caption');\n h.cite = h.bind(undefined, 'cite');\n h.code = h.bind(undefined, 'code');\n h.col = h.bind(undefined, 'col');\n h.colgroup = h.bind(undefined, 'colgroup');\n h.data = h.bind(undefined, 'data');\n h.datalist = h.bind(undefined, 'datalist');\n h.dd = h.bind(undefined, 'dd');\n h.del = h.bind(undefined, 'del');\n h.dfn = h.bind(undefined, 'dfn');\n h.div = h.bind(undefined, 'div');\n h.dl = h.bind(undefined, 'dl');\n h.dt = h.bind(undefined, 'dt');\n h.em = h.bind(undefined, 'em');\n h.embed = h.bind(undefined, 'embed');\n h.fieldset = h.bind(undefined, 'fieldset');\n h.figcaption = h.bind(undefined, 'figcaption');\n h.figure = h.bind(undefined, 'figure');\n h.footer = h.bind(undefined, 'footer');\n h.form = h.bind(undefined, 'form');\n h.h1 = h.bind(undefined, 'h1');\n h.h2 = h.bind(undefined, 'h2');\n h.h3 = h.bind(undefined, 'h3');\n h.h4 = h.bind(undefined, 'h4');\n h.h5 = h.bind(undefined, 'h5');\n h.h6 = h.bind(undefined, 'h6');\n h.header = h.bind(undefined, 'header');\n h.hr = h.bind(undefined, 'hr');\n h.i = h.bind(undefined, 'i');\n h.iframe = h.bind(undefined, 'iframe');\n h.img = h.bind(undefined, 'img');\n h.input = h.bind(undefined, 'input');\n h.ins = h.bind(undefined, 'ins');\n h.kbd = h.bind(undefined, 'kbd');\n h.label = h.bind(undefined, 'label');\n h.legend = h.bind(undefined, 'legend');\n h.li = h.bind(undefined, 'li');\n h.main = h.bind(undefined, 'main');\n h.map = h.bind(undefined, 'map');\n h.mark = h.bind(undefined, 'mark');\n h.meter = h.bind(undefined, 'meter');\n h.nav = h.bind(undefined, 'nav');\n h.noscript = h.bind(undefined, 'noscript');\n h.object = h.bind(undefined, 'object');\n h.ol = h.bind(undefined, 'ol');\n h.optgroup = h.bind(undefined, 'optgroup');\n h.option = h.bind(undefined, 'option');\n h.output = h.bind(undefined, 'output');\n h.p = h.bind(undefined, 'p');\n h.param = h.bind(undefined, 'param');\n h.pre = h.bind(undefined, 'pre');\n h.progress = h.bind(undefined, 'progress');\n h.q = h.bind(undefined, 'q');\n h.rp = h.bind(undefined, 'rp');\n h.rt = h.bind(undefined, 'rt');\n h.ruby = h.bind(undefined, 'ruby');\n h.s = h.bind(undefined, 's');\n h.samp = h.bind(undefined, 'samp');\n h.section = h.bind(undefined, 'section');\n h.select = h.bind(undefined, 'select');\n h.small = h.bind(undefined, 'small');\n h.source = h.bind(undefined, 'source');\n h.span = h.bind(undefined, 'span');\n h.strong = h.bind(undefined, 'strong');\n h.sub = h.bind(undefined, 'sub');\n h.summary = h.bind(undefined, 'summary');\n h.sup = h.bind(undefined, 'sup');\n h.table = h.bind(undefined, 'table');\n h.tbody = h.bind(undefined, 'tbody');\n h.td = h.bind(undefined, 'td');\n h.textarea = h.bind(undefined, 'textarea');\n h.tfoot = h.bind(undefined, 'tfoot');\n h.th = h.bind(undefined, 'th');\n h.thead = h.bind(undefined, 'thead');\n h.time = h.bind(undefined, 'time');\n h.title = h.bind(undefined, 'title');\n h.tr = h.bind(undefined, 'tr');\n h.track = h.bind(undefined, 'track');\n h.u = h.bind(undefined, 'u');\n h.ul = h.bind(undefined, 'ul');\n h.var_ = h.bind(undefined, 'var');\n h.video = h.bind(undefined, 'video');\n h.wbr = h.bind(undefined, 'wbr');\n})(h || (h = {}));\nfunction hpass(tag) {\n let attrs = {};\n let renderer = null;\n if (arguments.length === 2) {\n // eslint-disable-next-line prefer-rest-params\n const arg = arguments[1];\n if ('render' in arg) {\n renderer = arg;\n }\n else {\n attrs = arg;\n }\n }\n else if (arguments.length === 3) {\n // eslint-disable-next-line prefer-rest-params\n attrs = arguments[1];\n // eslint-disable-next-line prefer-rest-params\n renderer = arguments[2];\n }\n else if (arguments.length > 3) {\n throw new Error('hpass() should be called with 1, 2, or 3 arguments');\n }\n return new VirtualElementPass(tag, attrs, renderer);\n}\n/**\n * The namespace for the virtual DOM rendering functions.\n */\nvar VirtualDOM;\n(function (VirtualDOM) {\n function realize(node) {\n return Private.createDOMNode(node);\n }\n VirtualDOM.realize = realize;\n /**\n * Render virtual DOM content into a host element.\n *\n * @param content - The virtual DOM content to render.\n *\n * @param host - The host element for the rendered content.\n *\n * #### Notes\n * This renders the delta from the previous rendering. It assumes that\n * the content of the host element is not manipulated by external code.\n *\n * Providing `null` content will clear the rendering.\n *\n * Externally modifying the provided content or the host element will\n * result in undefined rendering behavior.\n */\n function render(content, host) {\n let oldContent = Private.hostMap.get(host) || [];\n let newContent = Private.asContentArray(content);\n Private.hostMap.set(host, newContent);\n Private.updateContent(host, oldContent, newContent);\n }\n VirtualDOM.render = render;\n})(VirtualDOM || (VirtualDOM = {}));\n/**\n * The namespace for the module implementation details.\n */\nvar Private;\n(function (Private) {\n /**\n * A weak mapping of host element to virtual DOM content.\n */\n Private.hostMap = new WeakMap();\n /**\n * Cast a content value to a content array.\n */\n function asContentArray(value) {\n if (!value) {\n return [];\n }\n if (value instanceof Array) {\n return value;\n }\n return [value];\n }\n Private.asContentArray = asContentArray;\n function createDOMNode(node) {\n // eslint-disable-next-line prefer-rest-params\n let host = arguments[1] || null;\n // eslint-disable-next-line prefer-rest-params\n const before = arguments[2] || null;\n if (host) {\n host.insertBefore(createDOMNode(node), before);\n }\n else {\n // Create a text node for a virtual text node.\n if (node.type === 'text') {\n return document.createTextNode(node.content);\n }\n // Create the HTML element with the specified tag.\n host = document.createElement(node.tag);\n // Add the attributes for the new element.\n addAttrs(host, node.attrs);\n if (node.renderer) {\n node.renderer.render(host, {\n attrs: node.attrs,\n children: node.children\n });\n return host;\n }\n // Recursively populate the element with child content.\n for (let i = 0, n = node.children.length; i < n; ++i) {\n createDOMNode(node.children[i], host);\n }\n }\n return host;\n }\n Private.createDOMNode = createDOMNode;\n /**\n * Update a host element with the delta of the virtual content.\n *\n * This is the core \"diff\" algorithm. There is no explicit \"patch\"\n * phase. The host is patched at each step as the diff progresses.\n */\n function updateContent(host, oldContent, newContent) {\n // Bail early if the content is identical.\n if (oldContent === newContent) {\n return;\n }\n // Collect the old keyed elems into a mapping.\n let oldKeyed = collectKeys(host, oldContent);\n // Create a copy of the old content which can be modified in-place.\n let oldCopy = oldContent.slice();\n // Update the host with the new content. The diff always proceeds\n // forward and never modifies a previously visited index. The old\n // copy array is modified in-place to reflect the changes made to\n // the host children. This causes the stale nodes to be pushed to\n // the end of the host node and removed at the end of the loop.\n let currElem = host.firstChild;\n let newCount = newContent.length;\n for (let i = 0; i < newCount; ++i) {\n // If the old content is exhausted, create a new node.\n if (i >= oldCopy.length) {\n createDOMNode(newContent[i], host);\n continue;\n }\n // Lookup the old and new virtual nodes.\n let oldVNode = oldCopy[i];\n let newVNode = newContent[i];\n // If both elements are identical, there is nothing to do.\n if (oldVNode === newVNode) {\n currElem = currElem.nextSibling;\n continue;\n }\n // Handle the simplest case of in-place text update first.\n if (oldVNode.type === 'text' && newVNode.type === 'text') {\n // Avoid spurious updates for performance.\n if (currElem.textContent !== newVNode.content) {\n currElem.textContent = newVNode.content;\n }\n currElem = currElem.nextSibling;\n continue;\n }\n // If the old or new node is a text node, the other node is now\n // known to be an element node, so create and insert a new node.\n if (oldVNode.type === 'text' || newVNode.type === 'text') {\n ArrayExt.insert(oldCopy, i, newVNode);\n createDOMNode(newVNode, host, currElem);\n continue;\n }\n // If the old XOR new node has a custom renderer,\n // create and insert a new node.\n if (!oldVNode.renderer != !newVNode.renderer) {\n ArrayExt.insert(oldCopy, i, newVNode);\n createDOMNode(newVNode, host, currElem);\n continue;\n }\n // At this point, both nodes are known to be element nodes.\n // If the new elem is keyed, move an old keyed elem to the proper\n // location before proceeding with the diff. The search can start\n // at the current index, since the unmatched old keyed elems are\n // pushed forward in the old copy array.\n let newKey = newVNode.attrs.key;\n if (newKey && newKey in oldKeyed) {\n let pair = oldKeyed[newKey];\n if (pair.vNode !== oldVNode) {\n ArrayExt.move(oldCopy, oldCopy.indexOf(pair.vNode, i + 1), i);\n host.insertBefore(pair.element, currElem);\n oldVNode = pair.vNode;\n currElem = pair.element;\n }\n }\n // If both elements are identical, there is nothing to do.\n if (oldVNode === newVNode) {\n currElem = currElem.nextSibling;\n continue;\n }\n // If the old elem is keyed and does not match the new elem key,\n // create a new node. This is necessary since the old keyed elem\n // may be matched at a later point in the diff.\n let oldKey = oldVNode.attrs.key;\n if (oldKey && oldKey !== newKey) {\n ArrayExt.insert(oldCopy, i, newVNode);\n createDOMNode(newVNode, host, currElem);\n continue;\n }\n // If the tags are different, create a new node.\n if (oldVNode.tag !== newVNode.tag) {\n ArrayExt.insert(oldCopy, i, newVNode);\n createDOMNode(newVNode, host, currElem);\n continue;\n }\n // At this point, the element can be updated in-place.\n // Update the element attributes.\n updateAttrs(currElem, oldVNode.attrs, newVNode.attrs);\n // Update the element content.\n if (newVNode.renderer) {\n newVNode.renderer.render(currElem, {\n attrs: newVNode.attrs,\n children: newVNode.children\n });\n }\n else {\n updateContent(currElem, oldVNode.children, newVNode.children);\n }\n // Step to the next sibling element.\n currElem = currElem.nextSibling;\n }\n // Cleanup stale DOM\n removeContent(host, oldCopy, newCount, true);\n }\n Private.updateContent = updateContent;\n /**\n * Handle cleanup of stale vdom and its associated DOM. The host node is\n * traversed recursively (in depth-first order), and any explicit cleanup\n * required by a child node is carried out when it is visited (eg if a node\n * has a custom renderer, the renderer.unrender function will be called).\n * Once the subtree beneath each child of host has been completely visited,\n * that child will be removed via a call to host.removeChild.\n */\n function removeContent(host, oldContent, newCount, _sentinel) {\n // Dispose of the old nodes pushed to the end of the host.\n for (let i = oldContent.length - 1; i >= newCount; --i) {\n const oldNode = oldContent[i];\n const child = (_sentinel ? host.lastChild : host.childNodes[i]);\n // recursively clean up host children\n if (oldNode.type === 'text') ;\n else if (oldNode.renderer && oldNode.renderer.unrender) {\n oldNode.renderer.unrender(child, {\n attrs: oldNode.attrs,\n children: oldNode.children\n });\n }\n else {\n removeContent(child, oldNode.children, 0, false);\n }\n if (_sentinel) {\n host.removeChild(child);\n }\n }\n }\n /**\n * A set of special-cased attribute names.\n */\n const specialAttrs = {\n key: true,\n className: true,\n htmlFor: true,\n dataset: true,\n style: true\n };\n /**\n * Add element attributes to a newly created HTML element.\n */\n function addAttrs(element, attrs) {\n // Add the inline event listeners and node attributes.\n for (let name in attrs) {\n if (name in specialAttrs) {\n continue;\n }\n if (name.substr(0, 2) === 'on') {\n element[name] = attrs[name];\n }\n else {\n element.setAttribute(name, attrs[name]);\n }\n }\n // Add the element `class` attribute.\n if (attrs.className !== undefined) {\n element.setAttribute('class', attrs.className);\n }\n // Add the element `for` attribute.\n if (attrs.htmlFor !== undefined) {\n element.setAttribute('for', attrs.htmlFor);\n }\n // Add the dataset values.\n if (attrs.dataset) {\n addDataset(element, attrs.dataset);\n }\n // Add the inline styles.\n if (attrs.style) {\n addStyle(element, attrs.style);\n }\n }\n /**\n * Update the element attributes of an HTML element.\n */\n function updateAttrs(element, oldAttrs, newAttrs) {\n // Do nothing if the attrs are the same object.\n if (oldAttrs === newAttrs) {\n return;\n }\n // Setup the strongly typed loop variable.\n let name;\n // Remove attributes and listeners which no longer exist.\n for (name in oldAttrs) {\n if (name in specialAttrs || name in newAttrs) {\n continue;\n }\n if (name.substr(0, 2) === 'on') {\n element[name] = null;\n }\n else {\n element.removeAttribute(name);\n }\n }\n // Add and update new and existing attributes and listeners.\n for (name in newAttrs) {\n if (name in specialAttrs || oldAttrs[name] === newAttrs[name]) {\n continue;\n }\n if (name.substr(0, 2) === 'on') {\n element[name] = newAttrs[name];\n }\n else {\n element.setAttribute(name, newAttrs[name]);\n }\n }\n // Update the element `class` attribute.\n if (oldAttrs.className !== newAttrs.className) {\n if (newAttrs.className !== undefined) {\n element.setAttribute('class', newAttrs.className);\n }\n else {\n element.removeAttribute('class');\n }\n }\n // Add the element `for` attribute.\n if (oldAttrs.htmlFor !== newAttrs.htmlFor) {\n if (newAttrs.htmlFor !== undefined) {\n element.setAttribute('for', newAttrs.htmlFor);\n }\n else {\n element.removeAttribute('for');\n }\n }\n // Update the dataset values.\n if (oldAttrs.dataset !== newAttrs.dataset) {\n updateDataset(element, oldAttrs.dataset || {}, newAttrs.dataset || {});\n }\n // Update the inline styles.\n if (oldAttrs.style !== newAttrs.style) {\n updateStyle(element, oldAttrs.style || {}, newAttrs.style || {});\n }\n }\n /**\n * Add dataset values to a newly created HTML element.\n */\n function addDataset(element, dataset) {\n for (let name in dataset) {\n element.setAttribute(`data-${name}`, dataset[name]);\n }\n }\n /**\n * Update the dataset values of an HTML element.\n */\n function updateDataset(element, oldDataset, newDataset) {\n for (let name in oldDataset) {\n if (!(name in newDataset)) {\n element.removeAttribute(`data-${name}`);\n }\n }\n for (let name in newDataset) {\n if (oldDataset[name] !== newDataset[name]) {\n element.setAttribute(`data-${name}`, newDataset[name]);\n }\n }\n }\n /**\n * Add inline style values to a newly created HTML element.\n */\n function addStyle(element, style) {\n let elemStyle = element.style;\n let name;\n for (name in style) {\n elemStyle[name] = style[name];\n }\n }\n /**\n * Update the inline style values of an HTML element.\n */\n function updateStyle(element, oldStyle, newStyle) {\n let elemStyle = element.style;\n let name;\n for (name in oldStyle) {\n if (!(name in newStyle)) {\n elemStyle[name] = '';\n }\n }\n for (name in newStyle) {\n if (oldStyle[name] !== newStyle[name]) {\n elemStyle[name] = newStyle[name];\n }\n }\n }\n /**\n * Collect a mapping of keyed elements for the host content.\n */\n function collectKeys(host, content) {\n let node = host.firstChild;\n let keyMap = Object.create(null);\n for (let vNode of content) {\n if (vNode.type === 'element' && vNode.attrs.key) {\n keyMap[vNode.attrs.key] = { vNode, element: node };\n }\n node = node.nextSibling;\n }\n return keyMap;\n }\n})(Private || (Private = {}));\n\nexport { VirtualDOM, VirtualElement, VirtualElementPass, VirtualText, h, hpass };\n//# sourceMappingURL=index.es6.js.map\n","import { ArrayExt, StringExt, empty, find, max } from '@lumino/algorithm';\nimport { UUID, JSONExt, MimeData } from '@lumino/coreutils';\nimport { ElementExt, Selector, Platform } from '@lumino/domutils';\nimport { Message, ConflatableMessage, MessageLoop } from '@lumino/messaging';\nimport { AttachedProperty } from '@lumino/properties';\nimport { Signal } from '@lumino/signaling';\nimport { Drag } from '@lumino/dragdrop';\nimport { CommandRegistry } from '@lumino/commands';\nimport { VirtualDOM, h } from '@lumino/virtualdom';\nimport { DisposableDelegate } from '@lumino/disposable';\nimport { getKeyboardLayout } from '@lumino/keyboard';\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * A sizer object for use with the box engine layout functions.\n *\n * #### Notes\n * A box sizer holds the geometry information for an object along an\n * arbitrary layout orientation.\n *\n * For best performance, this class should be treated as a raw data\n * struct. It should not typically be subclassed.\n */\nclass BoxSizer {\n constructor() {\n /**\n * The preferred size for the sizer.\n *\n * #### Notes\n * The sizer will be given this initial size subject to its size\n * bounds. The sizer will not deviate from this size unless such\n * deviation is required to fit into the available layout space.\n *\n * There is no limit to this value, but it will be clamped to the\n * bounds defined by {@link minSize} and {@link maxSize}.\n *\n * The default value is `0`.\n */\n this.sizeHint = 0;\n /**\n * The minimum size of the sizer.\n *\n * #### Notes\n * The sizer will never be sized less than this value, even if\n * it means the sizer will overflow the available layout space.\n *\n * It is assumed that this value lies in the range `[0, Infinity)`\n * and that it is `<=` to {@link maxSize}. Failure to adhere to this\n * constraint will yield undefined results.\n *\n * The default value is `0`.\n */\n this.minSize = 0;\n /**\n * The maximum size of the sizer.\n *\n * #### Notes\n * The sizer will never be sized greater than this value, even if\n * it means the sizer will underflow the available layout space.\n *\n * It is assumed that this value lies in the range `[0, Infinity]`\n * and that it is `>=` to {@link minSize}. Failure to adhere to this\n * constraint will yield undefined results.\n *\n * The default value is `Infinity`.\n */\n this.maxSize = Infinity;\n /**\n * The stretch factor for the sizer.\n *\n * #### Notes\n * This controls how much the sizer stretches relative to its sibling\n * sizers when layout space is distributed. A stretch factor of zero\n * is special and will cause the sizer to only be resized after all\n * other sizers with a stretch factor greater than zero have been\n * resized to their limits.\n *\n * It is assumed that this value is an integer that lies in the range\n * `[0, Infinity)`. Failure to adhere to this constraint will yield\n * undefined results.\n *\n * The default value is `1`.\n */\n this.stretch = 1;\n /**\n * The computed size of the sizer.\n *\n * #### Notes\n * This value is the output of a call to {@link BoxEngine.calc}. It represents\n * the computed size for the object along the layout orientation,\n * and will always lie in the range `[minSize, maxSize]`.\n *\n * This value is output only.\n *\n * Changing this value will have no effect.\n */\n this.size = 0;\n /**\n * An internal storage property for the layout algorithm.\n *\n * #### Notes\n * This value is used as temporary storage by the layout algorithm.\n *\n * Changing this value will have no effect.\n */\n this.done = false;\n }\n}\n/**\n * The namespace for the box engine layout functions.\n */\nvar BoxEngine;\n(function (BoxEngine) {\n /**\n * Calculate the optimal layout sizes for a sequence of box sizers.\n *\n * This distributes the available layout space among the box sizers\n * according to the following algorithm:\n *\n * 1. Initialize the sizers's size to its size hint and compute the\n * sums for each of size hint, min size, and max size.\n *\n * 2. If the total size hint equals the available space, return.\n *\n * 3. If the available space is less than the total min size, set all\n * sizers to their min size and return.\n *\n * 4. If the available space is greater than the total max size, set\n * all sizers to their max size and return.\n *\n * 5. If the layout space is less than the total size hint, distribute\n * the negative delta as follows:\n *\n * a. Shrink each sizer with a stretch factor greater than zero by\n * an amount proportional to the negative space and the sum of\n * stretch factors. If the sizer reaches its min size, remove\n * it and its stretch factor from the computation.\n *\n * b. If after adjusting all stretch sizers there remains negative\n * space, distribute the space equally among the sizers with a\n * stretch factor of zero. If a sizer reaches its min size,\n * remove it from the computation.\n *\n * 6. If the layout space is greater than the total size hint,\n * distribute the positive delta as follows:\n *\n * a. Expand each sizer with a stretch factor greater than zero by\n * an amount proportional to the postive space and the sum of\n * stretch factors. If the sizer reaches its max size, remove\n * it and its stretch factor from the computation.\n *\n * b. If after adjusting all stretch sizers there remains positive\n * space, distribute the space equally among the sizers with a\n * stretch factor of zero. If a sizer reaches its max size,\n * remove it from the computation.\n *\n * 7. return\n *\n * @param sizers - The sizers for a particular layout line.\n *\n * @param space - The available layout space for the sizers.\n *\n * @returns The delta between the provided available space and the\n * actual consumed space. This value will be zero if the sizers\n * can be adjusted to fit, negative if the available space is too\n * small, and positive if the available space is too large.\n *\n * #### Notes\n * The {@link BoxSizer.size} of each sizer is updated with the computed size.\n *\n * This function can be called at any time to recompute the layout for\n * an existing sequence of sizers. The previously computed results will\n * have no effect on the new output. It is therefore not necessary to\n * create new sizer objects on each resize event.\n */\n function calc(sizers, space) {\n // Bail early if there is nothing to do.\n let count = sizers.length;\n if (count === 0) {\n return space;\n }\n // Setup the size and stretch counters.\n let totalMin = 0;\n let totalMax = 0;\n let totalSize = 0;\n let totalStretch = 0;\n let stretchCount = 0;\n // Setup the sizers and compute the totals.\n for (let i = 0; i < count; ++i) {\n let sizer = sizers[i];\n let min = sizer.minSize;\n let max = sizer.maxSize;\n let hint = sizer.sizeHint;\n sizer.done = false;\n sizer.size = Math.max(min, Math.min(hint, max));\n totalSize += sizer.size;\n totalMin += min;\n totalMax += max;\n if (sizer.stretch > 0) {\n totalStretch += sizer.stretch;\n stretchCount++;\n }\n }\n // If the space is equal to the total size, return early.\n if (space === totalSize) {\n return 0;\n }\n // If the space is less than the total min, minimize each sizer.\n if (space <= totalMin) {\n for (let i = 0; i < count; ++i) {\n let sizer = sizers[i];\n sizer.size = sizer.minSize;\n }\n return space - totalMin;\n }\n // If the space is greater than the total max, maximize each sizer.\n if (space >= totalMax) {\n for (let i = 0; i < count; ++i) {\n let sizer = sizers[i];\n sizer.size = sizer.maxSize;\n }\n return space - totalMax;\n }\n // The loops below perform sub-pixel precision sizing. A near zero\n // value is used for compares instead of zero to ensure that the\n // loop terminates when the subdivided space is reasonably small.\n let nearZero = 0.01;\n // A counter which is decremented each time a sizer is resized to\n // its limit. This ensures the loops terminate even if there is\n // space remaining to distribute.\n let notDoneCount = count;\n // Distribute negative delta space.\n if (space < totalSize) {\n // Shrink each stretchable sizer by an amount proportional to its\n // stretch factor. If a sizer reaches its min size it's marked as\n // done. The loop progresses in phases where each sizer is given\n // a chance to consume its fair share for the pass, regardless of\n // whether a sizer before it reached its limit. This continues\n // until the stretchable sizers or the free space is exhausted.\n let freeSpace = totalSize - space;\n while (stretchCount > 0 && freeSpace > nearZero) {\n let distSpace = freeSpace;\n let distStretch = totalStretch;\n for (let i = 0; i < count; ++i) {\n let sizer = sizers[i];\n if (sizer.done || sizer.stretch === 0) {\n continue;\n }\n let amt = (sizer.stretch * distSpace) / distStretch;\n if (sizer.size - amt <= sizer.minSize) {\n freeSpace -= sizer.size - sizer.minSize;\n totalStretch -= sizer.stretch;\n sizer.size = sizer.minSize;\n sizer.done = true;\n notDoneCount--;\n stretchCount--;\n }\n else {\n freeSpace -= amt;\n sizer.size -= amt;\n }\n }\n }\n // Distribute any remaining space evenly among the non-stretchable\n // sizers. This progresses in phases in the same manner as above.\n while (notDoneCount > 0 && freeSpace > nearZero) {\n let amt = freeSpace / notDoneCount;\n for (let i = 0; i < count; ++i) {\n let sizer = sizers[i];\n if (sizer.done) {\n continue;\n }\n if (sizer.size - amt <= sizer.minSize) {\n freeSpace -= sizer.size - sizer.minSize;\n sizer.size = sizer.minSize;\n sizer.done = true;\n notDoneCount--;\n }\n else {\n freeSpace -= amt;\n sizer.size -= amt;\n }\n }\n }\n }\n // Distribute positive delta space.\n else {\n // Expand each stretchable sizer by an amount proportional to its\n // stretch factor. If a sizer reaches its max size it's marked as\n // done. The loop progresses in phases where each sizer is given\n // a chance to consume its fair share for the pass, regardless of\n // whether a sizer before it reached its limit. This continues\n // until the stretchable sizers or the free space is exhausted.\n let freeSpace = space - totalSize;\n while (stretchCount > 0 && freeSpace > nearZero) {\n let distSpace = freeSpace;\n let distStretch = totalStretch;\n for (let i = 0; i < count; ++i) {\n let sizer = sizers[i];\n if (sizer.done || sizer.stretch === 0) {\n continue;\n }\n let amt = (sizer.stretch * distSpace) / distStretch;\n if (sizer.size + amt >= sizer.maxSize) {\n freeSpace -= sizer.maxSize - sizer.size;\n totalStretch -= sizer.stretch;\n sizer.size = sizer.maxSize;\n sizer.done = true;\n notDoneCount--;\n stretchCount--;\n }\n else {\n freeSpace -= amt;\n sizer.size += amt;\n }\n }\n }\n // Distribute any remaining space evenly among the non-stretchable\n // sizers. This progresses in phases in the same manner as above.\n while (notDoneCount > 0 && freeSpace > nearZero) {\n let amt = freeSpace / notDoneCount;\n for (let i = 0; i < count; ++i) {\n let sizer = sizers[i];\n if (sizer.done) {\n continue;\n }\n if (sizer.size + amt >= sizer.maxSize) {\n freeSpace -= sizer.maxSize - sizer.size;\n sizer.size = sizer.maxSize;\n sizer.done = true;\n notDoneCount--;\n }\n else {\n freeSpace -= amt;\n sizer.size += amt;\n }\n }\n }\n }\n // Indicate that the consumed space equals the available space.\n return 0;\n }\n BoxEngine.calc = calc;\n /**\n * Adjust a sizer by a delta and update its neighbors accordingly.\n *\n * @param sizers - The sizers which should be adjusted.\n *\n * @param index - The index of the sizer to grow.\n *\n * @param delta - The amount to adjust the sizer, positive or negative.\n *\n * #### Notes\n * This will adjust the indicated sizer by the specified amount, along\n * with the sizes of the appropriate neighbors, subject to the limits\n * specified by each of the sizers.\n *\n * This is useful when implementing box layouts where the boundaries\n * between the sizers are interactively adjustable by the user.\n */\n function adjust(sizers, index, delta) {\n // Bail early when there is nothing to do.\n if (sizers.length === 0 || delta === 0) {\n return;\n }\n // Dispatch to the proper implementation.\n if (delta > 0) {\n growSizer(sizers, index, delta);\n }\n else {\n shrinkSizer(sizers, index, -delta);\n }\n }\n BoxEngine.adjust = adjust;\n /**\n * Grow a sizer by a positive delta and adjust neighbors.\n */\n function growSizer(sizers, index, delta) {\n // Compute how much the items to the left can expand.\n let growLimit = 0;\n for (let i = 0; i <= index; ++i) {\n let sizer = sizers[i];\n growLimit += sizer.maxSize - sizer.size;\n }\n // Compute how much the items to the right can shrink.\n let shrinkLimit = 0;\n for (let i = index + 1, n = sizers.length; i < n; ++i) {\n let sizer = sizers[i];\n shrinkLimit += sizer.size - sizer.minSize;\n }\n // Clamp the delta adjustment to the limits.\n delta = Math.min(delta, growLimit, shrinkLimit);\n // Grow the sizers to the left by the delta.\n let grow = delta;\n for (let i = index; i >= 0 && grow > 0; --i) {\n let sizer = sizers[i];\n let limit = sizer.maxSize - sizer.size;\n if (limit >= grow) {\n sizer.sizeHint = sizer.size + grow;\n grow = 0;\n }\n else {\n sizer.sizeHint = sizer.size + limit;\n grow -= limit;\n }\n }\n // Shrink the sizers to the right by the delta.\n let shrink = delta;\n for (let i = index + 1, n = sizers.length; i < n && shrink > 0; ++i) {\n let sizer = sizers[i];\n let limit = sizer.size - sizer.minSize;\n if (limit >= shrink) {\n sizer.sizeHint = sizer.size - shrink;\n shrink = 0;\n }\n else {\n sizer.sizeHint = sizer.size - limit;\n shrink -= limit;\n }\n }\n }\n /**\n * Shrink a sizer by a positive delta and adjust neighbors.\n */\n function shrinkSizer(sizers, index, delta) {\n // Compute how much the items to the right can expand.\n let growLimit = 0;\n for (let i = index + 1, n = sizers.length; i < n; ++i) {\n let sizer = sizers[i];\n growLimit += sizer.maxSize - sizer.size;\n }\n // Compute how much the items to the left can shrink.\n let shrinkLimit = 0;\n for (let i = 0; i <= index; ++i) {\n let sizer = sizers[i];\n shrinkLimit += sizer.size - sizer.minSize;\n }\n // Clamp the delta adjustment to the limits.\n delta = Math.min(delta, growLimit, shrinkLimit);\n // Grow the sizers to the right by the delta.\n let grow = delta;\n for (let i = index + 1, n = sizers.length; i < n && grow > 0; ++i) {\n let sizer = sizers[i];\n let limit = sizer.maxSize - sizer.size;\n if (limit >= grow) {\n sizer.sizeHint = sizer.size + grow;\n grow = 0;\n }\n else {\n sizer.sizeHint = sizer.size + limit;\n grow -= limit;\n }\n }\n // Shrink the sizers to the left by the delta.\n let shrink = delta;\n for (let i = index; i >= 0 && shrink > 0; --i) {\n let sizer = sizers[i];\n let limit = sizer.size - sizer.minSize;\n if (limit >= shrink) {\n sizer.sizeHint = sizer.size - shrink;\n shrink = 0;\n }\n else {\n sizer.sizeHint = sizer.size - limit;\n shrink -= limit;\n }\n }\n }\n})(BoxEngine || (BoxEngine = {}));\n\n/**\n * An object which holds data related to an object's title.\n *\n * #### Notes\n * A title object is intended to hold the data necessary to display a\n * header for a particular object. A common example is the `TabPanel`,\n * which uses the widget title to populate the tab for a child widget.\n *\n * It is the responsibility of the owner to call the title disposal.\n */\nclass Title {\n /**\n * Construct a new title.\n *\n * @param options - The options for initializing the title.\n */\n constructor(options) {\n this._label = '';\n this._caption = '';\n this._mnemonic = -1;\n this._icon = undefined;\n this._iconClass = '';\n this._iconLabel = '';\n this._className = '';\n this._closable = false;\n this._changed = new Signal(this);\n this._isDisposed = false;\n this.owner = options.owner;\n if (options.label !== undefined) {\n this._label = options.label;\n }\n if (options.mnemonic !== undefined) {\n this._mnemonic = options.mnemonic;\n }\n if (options.icon !== undefined) {\n this._icon = options.icon;\n }\n if (options.iconClass !== undefined) {\n this._iconClass = options.iconClass;\n }\n if (options.iconLabel !== undefined) {\n this._iconLabel = options.iconLabel;\n }\n if (options.caption !== undefined) {\n this._caption = options.caption;\n }\n if (options.className !== undefined) {\n this._className = options.className;\n }\n if (options.closable !== undefined) {\n this._closable = options.closable;\n }\n this._dataset = options.dataset || {};\n }\n /**\n * A signal emitted when the state of the title changes.\n */\n get changed() {\n return this._changed;\n }\n /**\n * Get the label for the title.\n *\n * #### Notes\n * The default value is an empty string.\n */\n get label() {\n return this._label;\n }\n /**\n * Set the label for the title.\n */\n set label(value) {\n if (this._label === value) {\n return;\n }\n this._label = value;\n this._changed.emit(undefined);\n }\n /**\n * Get the mnemonic index for the title.\n *\n * #### Notes\n * The default value is `-1`.\n */\n get mnemonic() {\n return this._mnemonic;\n }\n /**\n * Set the mnemonic index for the title.\n */\n set mnemonic(value) {\n if (this._mnemonic === value) {\n return;\n }\n this._mnemonic = value;\n this._changed.emit(undefined);\n }\n /**\n * Get the icon renderer for the title.\n *\n * #### Notes\n * The default value is undefined.\n */\n get icon() {\n return this._icon;\n }\n /**\n * Set the icon renderer for the title.\n *\n * #### Notes\n * A renderer is an object that supplies a render and unrender function.\n */\n set icon(value) {\n if (this._icon === value) {\n return;\n }\n this._icon = value;\n this._changed.emit(undefined);\n }\n /**\n * Get the icon class name for the title.\n *\n * #### Notes\n * The default value is an empty string.\n */\n get iconClass() {\n return this._iconClass;\n }\n /**\n * Set the icon class name for the title.\n *\n * #### Notes\n * Multiple class names can be separated with whitespace.\n */\n set iconClass(value) {\n if (this._iconClass === value) {\n return;\n }\n this._iconClass = value;\n this._changed.emit(undefined);\n }\n /**\n * Get the icon label for the title.\n *\n * #### Notes\n * The default value is an empty string.\n */\n get iconLabel() {\n return this._iconLabel;\n }\n /**\n * Set the icon label for the title.\n *\n * #### Notes\n * Multiple class names can be separated with whitespace.\n */\n set iconLabel(value) {\n if (this._iconLabel === value) {\n return;\n }\n this._iconLabel = value;\n this._changed.emit(undefined);\n }\n /**\n * Get the caption for the title.\n *\n * #### Notes\n * The default value is an empty string.\n */\n get caption() {\n return this._caption;\n }\n /**\n * Set the caption for the title.\n */\n set caption(value) {\n if (this._caption === value) {\n return;\n }\n this._caption = value;\n this._changed.emit(undefined);\n }\n /**\n * Get the extra class name for the title.\n *\n * #### Notes\n * The default value is an empty string.\n */\n get className() {\n return this._className;\n }\n /**\n * Set the extra class name for the title.\n *\n * #### Notes\n * Multiple class names can be separated with whitespace.\n */\n set className(value) {\n if (this._className === value) {\n return;\n }\n this._className = value;\n this._changed.emit(undefined);\n }\n /**\n * Get the closable state for the title.\n *\n * #### Notes\n * The default value is `false`.\n */\n get closable() {\n return this._closable;\n }\n /**\n * Set the closable state for the title.\n *\n * #### Notes\n * This controls the presence of a close icon when applicable.\n */\n set closable(value) {\n if (this._closable === value) {\n return;\n }\n this._closable = value;\n this._changed.emit(undefined);\n }\n /**\n * Get the dataset for the title.\n *\n * #### Notes\n * The default value is an empty dataset.\n */\n get dataset() {\n return this._dataset;\n }\n /**\n * Set the dataset for the title.\n *\n * #### Notes\n * This controls the data attributes when applicable.\n */\n set dataset(value) {\n if (this._dataset === value) {\n return;\n }\n this._dataset = value;\n this._changed.emit(undefined);\n }\n /**\n * Test whether the title has been disposed.\n */\n get isDisposed() {\n return this._isDisposed;\n }\n /**\n * Dispose of the resources held by the title.\n *\n * #### Notes\n * It is the responsibility of the owner to call the title disposal.\n */\n dispose() {\n if (this.isDisposed) {\n return;\n }\n this._isDisposed = true;\n Signal.clearData(this);\n }\n}\n\n/**\n * The base class of the lumino widget hierarchy.\n *\n * #### Notes\n * This class will typically be subclassed in order to create a useful\n * widget. However, it can be used directly to host externally created\n * content.\n */\nclass Widget {\n /**\n * Construct a new widget.\n *\n * @param options - The options for initializing the widget.\n */\n constructor(options = {}) {\n this._flags = 0;\n this._layout = null;\n this._parent = null;\n this._disposed = new Signal(this);\n this._hiddenMode = Widget.HiddenMode.Display;\n this.node = Private$j.createNode(options);\n this.addClass('lm-Widget');\n }\n /**\n * Dispose of the widget and its descendant widgets.\n *\n * #### Notes\n * It is unsafe to use the widget after it has been disposed.\n *\n * All calls made to this method after the first are a no-op.\n */\n dispose() {\n // Do nothing if the widget is already disposed.\n if (this.isDisposed) {\n return;\n }\n // Set the disposed flag and emit the disposed signal.\n this.setFlag(Widget.Flag.IsDisposed);\n this._disposed.emit(undefined);\n // Remove or detach the widget if necessary.\n if (this.parent) {\n this.parent = null;\n }\n else if (this.isAttached) {\n Widget.detach(this);\n }\n // Dispose of the widget layout.\n if (this._layout) {\n this._layout.dispose();\n this._layout = null;\n }\n // Dispose the title\n this.title.dispose();\n // Clear the extra data associated with the widget.\n Signal.clearData(this);\n MessageLoop.clearData(this);\n AttachedProperty.clearData(this);\n }\n /**\n * A signal emitted when the widget is disposed.\n */\n get disposed() {\n return this._disposed;\n }\n /**\n * Test whether the widget has been disposed.\n */\n get isDisposed() {\n return this.testFlag(Widget.Flag.IsDisposed);\n }\n /**\n * Test whether the widget's node is attached to the DOM.\n */\n get isAttached() {\n return this.testFlag(Widget.Flag.IsAttached);\n }\n /**\n * Test whether the widget is explicitly hidden.\n */\n get isHidden() {\n return this.testFlag(Widget.Flag.IsHidden);\n }\n /**\n * Test whether the widget is visible.\n *\n * #### Notes\n * A widget is visible when it is attached to the DOM, is not\n * explicitly hidden, and has no explicitly hidden ancestors.\n */\n get isVisible() {\n return this.testFlag(Widget.Flag.IsVisible);\n }\n /**\n * The title object for the widget.\n *\n * #### Notes\n * The title object is used by some container widgets when displaying\n * the widget alongside some title, such as a tab panel or side bar.\n *\n * Since not all widgets will use the title, it is created on demand.\n *\n * The `owner` property of the title is set to this widget.\n */\n get title() {\n return Private$j.titleProperty.get(this);\n }\n /**\n * Get the id of the widget's DOM node.\n */\n get id() {\n return this.node.id;\n }\n /**\n * Set the id of the widget's DOM node.\n */\n set id(value) {\n this.node.id = value;\n }\n /**\n * The dataset for the widget's DOM node.\n */\n get dataset() {\n return this.node.dataset;\n }\n /**\n * Get the method for hiding the widget.\n */\n get hiddenMode() {\n return this._hiddenMode;\n }\n /**\n * Set the method for hiding the widget.\n */\n set hiddenMode(value) {\n if (this._hiddenMode === value) {\n return;\n }\n if (this.isHidden) {\n // Reset styles set by previous mode.\n this._toggleHidden(false);\n }\n if (value == Widget.HiddenMode.Scale) {\n this.node.style.willChange = 'transform';\n }\n else {\n this.node.style.willChange = 'auto';\n }\n this._hiddenMode = value;\n if (this.isHidden) {\n // Set styles for new mode.\n this._toggleHidden(true);\n }\n }\n /**\n * Get the parent of the widget.\n */\n get parent() {\n return this._parent;\n }\n /**\n * Set the parent of the widget.\n *\n * #### Notes\n * Children are typically added to a widget by using a layout, which\n * means user code will not normally set the parent widget directly.\n *\n * The widget will be automatically removed from its old parent.\n *\n * This is a no-op if there is no effective parent change.\n */\n set parent(value) {\n if (this._parent === value) {\n return;\n }\n if (value && this.contains(value)) {\n throw new Error('Invalid parent widget.');\n }\n if (this._parent && !this._parent.isDisposed) {\n let msg = new Widget.ChildMessage('child-removed', this);\n MessageLoop.sendMessage(this._parent, msg);\n }\n this._parent = value;\n if (this._parent && !this._parent.isDisposed) {\n let msg = new Widget.ChildMessage('child-added', this);\n MessageLoop.sendMessage(this._parent, msg);\n }\n if (!this.isDisposed) {\n MessageLoop.sendMessage(this, Widget.Msg.ParentChanged);\n }\n }\n /**\n * Get the layout for the widget.\n */\n get layout() {\n return this._layout;\n }\n /**\n * Set the layout for the widget.\n *\n * #### Notes\n * The layout is single-use only. It cannot be changed after the\n * first assignment.\n *\n * The layout is disposed automatically when the widget is disposed.\n */\n set layout(value) {\n if (this._layout === value) {\n return;\n }\n if (this.testFlag(Widget.Flag.DisallowLayout)) {\n throw new Error('Cannot set widget layout.');\n }\n if (this._layout) {\n throw new Error('Cannot change widget layout.');\n }\n if (value.parent) {\n throw new Error('Cannot change layout parent.');\n }\n this._layout = value;\n value.parent = this;\n }\n /**\n * Create an iterator over the widget's children.\n *\n * @returns A new iterator over the children of the widget.\n *\n * #### Notes\n * The widget must have a populated layout in order to have children.\n *\n * If a layout is not installed, the returned iterator will be empty.\n */\n *children() {\n if (this._layout) {\n yield* this._layout;\n }\n }\n /**\n * Test whether a widget is a descendant of this widget.\n *\n * @param widget - The descendant widget of interest.\n *\n * @returns `true` if the widget is a descendant, `false` otherwise.\n */\n contains(widget) {\n for (let value = widget; value; value = value._parent) {\n if (value === this) {\n return true;\n }\n }\n return false;\n }\n /**\n * Test whether the widget's DOM node has the given class name.\n *\n * @param name - The class name of interest.\n *\n * @returns `true` if the node has the class, `false` otherwise.\n */\n hasClass(name) {\n return this.node.classList.contains(name);\n }\n /**\n * Add a class name to the widget's DOM node.\n *\n * @param name - The class name to add to the node.\n *\n * #### Notes\n * If the class name is already added to the node, this is a no-op.\n *\n * The class name must not contain whitespace.\n */\n addClass(name) {\n this.node.classList.add(name);\n }\n /**\n * Remove a class name from the widget's DOM node.\n *\n * @param name - The class name to remove from the node.\n *\n * #### Notes\n * If the class name is not yet added to the node, this is a no-op.\n *\n * The class name must not contain whitespace.\n */\n removeClass(name) {\n this.node.classList.remove(name);\n }\n /**\n * Toggle a class name on the widget's DOM node.\n *\n * @param name - The class name to toggle on the node.\n *\n * @param force - Whether to force add the class (`true`) or force\n * remove the class (`false`). If not provided, the presence of\n * the class will be toggled from its current state.\n *\n * @returns `true` if the class is now present, `false` otherwise.\n *\n * #### Notes\n * The class name must not contain whitespace.\n */\n toggleClass(name, force) {\n if (force === true) {\n this.node.classList.add(name);\n return true;\n }\n if (force === false) {\n this.node.classList.remove(name);\n return false;\n }\n return this.node.classList.toggle(name);\n }\n /**\n * Post an `'update-request'` message to the widget.\n *\n * #### Notes\n * This is a simple convenience method for posting the message.\n */\n update() {\n MessageLoop.postMessage(this, Widget.Msg.UpdateRequest);\n }\n /**\n * Post a `'fit-request'` message to the widget.\n *\n * #### Notes\n * This is a simple convenience method for posting the message.\n */\n fit() {\n MessageLoop.postMessage(this, Widget.Msg.FitRequest);\n }\n /**\n * Post an `'activate-request'` message to the widget.\n *\n * #### Notes\n * This is a simple convenience method for posting the message.\n */\n activate() {\n MessageLoop.postMessage(this, Widget.Msg.ActivateRequest);\n }\n /**\n * Send a `'close-request'` message to the widget.\n *\n * #### Notes\n * This is a simple convenience method for sending the message.\n */\n close() {\n MessageLoop.sendMessage(this, Widget.Msg.CloseRequest);\n }\n /**\n * Show the widget and make it visible to its parent widget.\n *\n * #### Notes\n * This causes the {@link isHidden} property to be `false`.\n *\n * If the widget is not explicitly hidden, this is a no-op.\n */\n show() {\n if (!this.testFlag(Widget.Flag.IsHidden)) {\n return;\n }\n if (this.isAttached && (!this.parent || this.parent.isVisible)) {\n MessageLoop.sendMessage(this, Widget.Msg.BeforeShow);\n }\n this.clearFlag(Widget.Flag.IsHidden);\n this._toggleHidden(false);\n if (this.isAttached && (!this.parent || this.parent.isVisible)) {\n MessageLoop.sendMessage(this, Widget.Msg.AfterShow);\n }\n if (this.parent) {\n let msg = new Widget.ChildMessage('child-shown', this);\n MessageLoop.sendMessage(this.parent, msg);\n }\n }\n /**\n * Hide the widget and make it hidden to its parent widget.\n *\n * #### Notes\n * This causes the {@link isHidden} property to be `true`.\n *\n * If the widget is explicitly hidden, this is a no-op.\n */\n hide() {\n if (this.testFlag(Widget.Flag.IsHidden)) {\n return;\n }\n if (this.isAttached && (!this.parent || this.parent.isVisible)) {\n MessageLoop.sendMessage(this, Widget.Msg.BeforeHide);\n }\n this.setFlag(Widget.Flag.IsHidden);\n this._toggleHidden(true);\n if (this.isAttached && (!this.parent || this.parent.isVisible)) {\n MessageLoop.sendMessage(this, Widget.Msg.AfterHide);\n }\n if (this.parent) {\n let msg = new Widget.ChildMessage('child-hidden', this);\n MessageLoop.sendMessage(this.parent, msg);\n }\n }\n /**\n * Show or hide the widget according to a boolean value.\n *\n * @param hidden - `true` to hide the widget, or `false` to show it.\n *\n * #### Notes\n * This is a convenience method for `hide()` and `show()`.\n */\n setHidden(hidden) {\n if (hidden) {\n this.hide();\n }\n else {\n this.show();\n }\n }\n /**\n * Test whether the given widget flag is set.\n *\n * #### Notes\n * This will not typically be called directly by user code.\n */\n testFlag(flag) {\n return (this._flags & flag) !== 0;\n }\n /**\n * Set the given widget flag.\n *\n * #### Notes\n * This will not typically be called directly by user code.\n */\n setFlag(flag) {\n this._flags |= flag;\n }\n /**\n * Clear the given widget flag.\n *\n * #### Notes\n * This will not typically be called directly by user code.\n */\n clearFlag(flag) {\n this._flags &= ~flag;\n }\n /**\n * Process a message sent to the widget.\n *\n * @param msg - The message sent to the widget.\n *\n * #### Notes\n * Subclasses may reimplement this method as needed.\n */\n processMessage(msg) {\n switch (msg.type) {\n case 'resize':\n this.notifyLayout(msg);\n this.onResize(msg);\n break;\n case 'update-request':\n this.notifyLayout(msg);\n this.onUpdateRequest(msg);\n break;\n case 'fit-request':\n this.notifyLayout(msg);\n this.onFitRequest(msg);\n break;\n case 'before-show':\n this.notifyLayout(msg);\n this.onBeforeShow(msg);\n break;\n case 'after-show':\n this.setFlag(Widget.Flag.IsVisible);\n this.notifyLayout(msg);\n this.onAfterShow(msg);\n break;\n case 'before-hide':\n this.notifyLayout(msg);\n this.onBeforeHide(msg);\n break;\n case 'after-hide':\n this.clearFlag(Widget.Flag.IsVisible);\n this.notifyLayout(msg);\n this.onAfterHide(msg);\n break;\n case 'before-attach':\n this.notifyLayout(msg);\n this.onBeforeAttach(msg);\n break;\n case 'after-attach':\n if (!this.isHidden && (!this.parent || this.parent.isVisible)) {\n this.setFlag(Widget.Flag.IsVisible);\n }\n this.setFlag(Widget.Flag.IsAttached);\n this.notifyLayout(msg);\n this.onAfterAttach(msg);\n break;\n case 'before-detach':\n this.notifyLayout(msg);\n this.onBeforeDetach(msg);\n break;\n case 'after-detach':\n this.clearFlag(Widget.Flag.IsVisible);\n this.clearFlag(Widget.Flag.IsAttached);\n this.notifyLayout(msg);\n this.onAfterDetach(msg);\n break;\n case 'activate-request':\n this.notifyLayout(msg);\n this.onActivateRequest(msg);\n break;\n case 'close-request':\n this.notifyLayout(msg);\n this.onCloseRequest(msg);\n break;\n case 'child-added':\n this.notifyLayout(msg);\n this.onChildAdded(msg);\n break;\n case 'child-removed':\n this.notifyLayout(msg);\n this.onChildRemoved(msg);\n break;\n default:\n this.notifyLayout(msg);\n break;\n }\n }\n /**\n * Invoke the message processing routine of the widget's layout.\n *\n * @param msg - The message to dispatch to the layout.\n *\n * #### Notes\n * This is a no-op if the widget does not have a layout.\n *\n * This will not typically be called directly by user code.\n */\n notifyLayout(msg) {\n if (this._layout) {\n this._layout.processParentMessage(msg);\n }\n }\n /**\n * A message handler invoked on a `'close-request'` message.\n *\n * #### Notes\n * The default implementation unparents or detaches the widget.\n */\n onCloseRequest(msg) {\n if (this.parent) {\n this.parent = null;\n }\n else if (this.isAttached) {\n Widget.detach(this);\n }\n }\n /**\n * A message handler invoked on a `'resize'` message.\n *\n * #### Notes\n * The default implementation of this handler is a no-op.\n */\n onResize(msg) { }\n /**\n * A message handler invoked on an `'update-request'` message.\n *\n * #### Notes\n * The default implementation of this handler is a no-op.\n */\n onUpdateRequest(msg) { }\n /**\n * A message handler invoked on a `'fit-request'` message.\n *\n * #### Notes\n * The default implementation of this handler is a no-op.\n */\n onFitRequest(msg) { }\n /**\n * A message handler invoked on an `'activate-request'` message.\n *\n * #### Notes\n * The default implementation of this handler is a no-op.\n */\n onActivateRequest(msg) { }\n /**\n * A message handler invoked on a `'before-show'` message.\n *\n * #### Notes\n * The default implementation of this handler is a no-op.\n */\n onBeforeShow(msg) { }\n /**\n * A message handler invoked on an `'after-show'` message.\n *\n * #### Notes\n * The default implementation of this handler is a no-op.\n */\n onAfterShow(msg) { }\n /**\n * A message handler invoked on a `'before-hide'` message.\n *\n * #### Notes\n * The default implementation of this handler is a no-op.\n */\n onBeforeHide(msg) { }\n /**\n * A message handler invoked on an `'after-hide'` message.\n *\n * #### Notes\n * The default implementation of this handler is a no-op.\n */\n onAfterHide(msg) { }\n /**\n * A message handler invoked on a `'before-attach'` message.\n *\n * #### Notes\n * The default implementation of this handler is a no-op.\n */\n onBeforeAttach(msg) { }\n /**\n * A message handler invoked on an `'after-attach'` message.\n *\n * #### Notes\n * The default implementation of this handler is a no-op.\n */\n onAfterAttach(msg) { }\n /**\n * A message handler invoked on a `'before-detach'` message.\n *\n * #### Notes\n * The default implementation of this handler is a no-op.\n */\n onBeforeDetach(msg) { }\n /**\n * A message handler invoked on an `'after-detach'` message.\n *\n * #### Notes\n * The default implementation of this handler is a no-op.\n */\n onAfterDetach(msg) { }\n /**\n * A message handler invoked on a `'child-added'` message.\n *\n * #### Notes\n * The default implementation of this handler is a no-op.\n */\n onChildAdded(msg) { }\n /**\n * A message handler invoked on a `'child-removed'` message.\n *\n * #### Notes\n * The default implementation of this handler is a no-op.\n */\n onChildRemoved(msg) { }\n _toggleHidden(hidden) {\n if (hidden) {\n switch (this._hiddenMode) {\n case Widget.HiddenMode.Display:\n this.addClass('lm-mod-hidden');\n break;\n case Widget.HiddenMode.Scale:\n this.node.style.transform = 'scale(0)';\n this.node.setAttribute('aria-hidden', 'true');\n break;\n case Widget.HiddenMode.ContentVisibility:\n // @ts-expect-error content-visibility unknown by DOM lib types\n this.node.style.contentVisibility = 'hidden';\n this.node.style.zIndex = '-1';\n break;\n }\n }\n else {\n switch (this._hiddenMode) {\n case Widget.HiddenMode.Display:\n this.removeClass('lm-mod-hidden');\n break;\n case Widget.HiddenMode.Scale:\n this.node.style.transform = '';\n this.node.removeAttribute('aria-hidden');\n break;\n case Widget.HiddenMode.ContentVisibility:\n // @ts-expect-error content-visibility unknown by DOM lib types\n this.node.style.contentVisibility = '';\n this.node.style.zIndex = '';\n break;\n }\n }\n }\n}\n/**\n * The namespace for the `Widget` class statics.\n */\n(function (Widget) {\n (function (HiddenMode) {\n /**\n * Set a `lm-mod-hidden` CSS class to hide the widget using `display:none`\n * CSS from the standard Lumino CSS.\n */\n HiddenMode[HiddenMode[\"Display\"] = 0] = \"Display\";\n /**\n * Hide the widget by setting the `transform` to `'scale(0)'`.\n */\n HiddenMode[HiddenMode[\"Scale\"] = 1] = \"Scale\";\n /**\n *Hide the widget by setting the `content-visibility` to `'hidden'`.\n */\n HiddenMode[HiddenMode[\"ContentVisibility\"] = 2] = \"ContentVisibility\";\n })(Widget.HiddenMode || (Widget.HiddenMode = {}));\n (function (Flag) {\n /**\n * The widget has been disposed.\n */\n Flag[Flag[\"IsDisposed\"] = 1] = \"IsDisposed\";\n /**\n * The widget is attached to the DOM.\n */\n Flag[Flag[\"IsAttached\"] = 2] = \"IsAttached\";\n /**\n * The widget is hidden.\n */\n Flag[Flag[\"IsHidden\"] = 4] = \"IsHidden\";\n /**\n * The widget is visible.\n */\n Flag[Flag[\"IsVisible\"] = 8] = \"IsVisible\";\n /**\n * A layout cannot be set on the widget.\n */\n Flag[Flag[\"DisallowLayout\"] = 16] = \"DisallowLayout\";\n })(Widget.Flag || (Widget.Flag = {}));\n (function (Msg) {\n /**\n * A singleton `'before-show'` message.\n *\n * #### Notes\n * This message is sent to a widget before it becomes visible.\n *\n * This message is **not** sent when the widget is being attached.\n */\n Msg.BeforeShow = new Message('before-show');\n /**\n * A singleton `'after-show'` message.\n *\n * #### Notes\n * This message is sent to a widget after it becomes visible.\n *\n * This message is **not** sent when the widget is being attached.\n */\n Msg.AfterShow = new Message('after-show');\n /**\n * A singleton `'before-hide'` message.\n *\n * #### Notes\n * This message is sent to a widget before it becomes not-visible.\n *\n * This message is **not** sent when the widget is being detached.\n */\n Msg.BeforeHide = new Message('before-hide');\n /**\n * A singleton `'after-hide'` message.\n *\n * #### Notes\n * This message is sent to a widget after it becomes not-visible.\n *\n * This message is **not** sent when the widget is being detached.\n */\n Msg.AfterHide = new Message('after-hide');\n /**\n * A singleton `'before-attach'` message.\n *\n * #### Notes\n * This message is sent to a widget before it is attached.\n */\n Msg.BeforeAttach = new Message('before-attach');\n /**\n * A singleton `'after-attach'` message.\n *\n * #### Notes\n * This message is sent to a widget after it is attached.\n */\n Msg.AfterAttach = new Message('after-attach');\n /**\n * A singleton `'before-detach'` message.\n *\n * #### Notes\n * This message is sent to a widget before it is detached.\n */\n Msg.BeforeDetach = new Message('before-detach');\n /**\n * A singleton `'after-detach'` message.\n *\n * #### Notes\n * This message is sent to a widget after it is detached.\n */\n Msg.AfterDetach = new Message('after-detach');\n /**\n * A singleton `'parent-changed'` message.\n *\n * #### Notes\n * This message is sent to a widget when its parent has changed.\n */\n Msg.ParentChanged = new Message('parent-changed');\n /**\n * A singleton conflatable `'update-request'` message.\n *\n * #### Notes\n * This message can be dispatched to supporting widgets in order to\n * update their content based on the current widget state. Not all\n * widgets will respond to messages of this type.\n *\n * For widgets with a layout, this message will inform the layout to\n * update the position and size of its child widgets.\n */\n Msg.UpdateRequest = new ConflatableMessage('update-request');\n /**\n * A singleton conflatable `'fit-request'` message.\n *\n * #### Notes\n * For widgets with a layout, this message will inform the layout to\n * recalculate its size constraints to fit the space requirements of\n * its child widgets, and to update their position and size. Not all\n * layouts will respond to messages of this type.\n */\n Msg.FitRequest = new ConflatableMessage('fit-request');\n /**\n * A singleton conflatable `'activate-request'` message.\n *\n * #### Notes\n * This message should be dispatched to a widget when it should\n * perform the actions necessary to activate the widget, which\n * may include focusing its node or descendant node.\n */\n Msg.ActivateRequest = new ConflatableMessage('activate-request');\n /**\n * A singleton conflatable `'close-request'` message.\n *\n * #### Notes\n * This message should be dispatched to a widget when it should close\n * and remove itself from the widget hierarchy.\n */\n Msg.CloseRequest = new ConflatableMessage('close-request');\n })(Widget.Msg || (Widget.Msg = {}));\n /**\n * A message class for child related messages.\n */\n class ChildMessage extends Message {\n /**\n * Construct a new child message.\n *\n * @param type - The message type.\n *\n * @param child - The child widget for the message.\n */\n constructor(type, child) {\n super(type);\n this.child = child;\n }\n }\n Widget.ChildMessage = ChildMessage;\n /**\n * A message class for `'resize'` messages.\n */\n class ResizeMessage extends Message {\n /**\n * Construct a new resize message.\n *\n * @param width - The **offset width** of the widget, or `-1` if\n * the width is not known.\n *\n * @param height - The **offset height** of the widget, or `-1` if\n * the height is not known.\n */\n constructor(width, height) {\n super('resize');\n this.width = width;\n this.height = height;\n }\n }\n Widget.ResizeMessage = ResizeMessage;\n /**\n * The namespace for the `ResizeMessage` class statics.\n */\n (function (ResizeMessage) {\n /**\n * A singleton `'resize'` message with an unknown size.\n */\n ResizeMessage.UnknownSize = new ResizeMessage(-1, -1);\n })(ResizeMessage = Widget.ResizeMessage || (Widget.ResizeMessage = {}));\n /**\n * Attach a widget to a host DOM node.\n *\n * @param widget - The widget of interest.\n *\n * @param host - The DOM node to use as the widget's host.\n *\n * @param ref - The child of `host` to use as the reference element.\n * If this is provided, the widget will be inserted before this\n * node in the host. The default is `null`, which will cause the\n * widget to be added as the last child of the host.\n *\n * #### Notes\n * This will throw an error if the widget is not a root widget, if\n * the widget is already attached, or if the host is not attached\n * to the DOM.\n */\n function attach(widget, host, ref = null) {\n if (widget.parent) {\n throw new Error('Cannot attach a child widget.');\n }\n if (widget.isAttached || widget.node.isConnected) {\n throw new Error('Widget is already attached.');\n }\n if (!host.isConnected) {\n throw new Error('Host is not attached.');\n }\n MessageLoop.sendMessage(widget, Widget.Msg.BeforeAttach);\n host.insertBefore(widget.node, ref);\n MessageLoop.sendMessage(widget, Widget.Msg.AfterAttach);\n }\n Widget.attach = attach;\n /**\n * Detach the widget from its host DOM node.\n *\n * @param widget - The widget of interest.\n *\n * #### Notes\n * This will throw an error if the widget is not a root widget,\n * or if the widget is not attached to the DOM.\n */\n function detach(widget) {\n if (widget.parent) {\n throw new Error('Cannot detach a child widget.');\n }\n if (!widget.isAttached || !widget.node.isConnected) {\n throw new Error('Widget is not attached.');\n }\n MessageLoop.sendMessage(widget, Widget.Msg.BeforeDetach);\n widget.node.parentNode.removeChild(widget.node);\n MessageLoop.sendMessage(widget, Widget.Msg.AfterDetach);\n }\n Widget.detach = detach;\n})(Widget || (Widget = {}));\n/**\n * The namespace for the module implementation details.\n */\nvar Private$j;\n(function (Private) {\n /**\n * An attached property for the widget title object.\n */\n Private.titleProperty = new AttachedProperty({\n name: 'title',\n create: owner => new Title({ owner })\n });\n /**\n * Create a DOM node for the given widget options.\n */\n function createNode(options) {\n return options.node || document.createElement(options.tag || 'div');\n }\n Private.createNode = createNode;\n})(Private$j || (Private$j = {}));\n\n/**\n * An abstract base class for creating lumino layouts.\n *\n * #### Notes\n * A layout is used to add widgets to a parent and to arrange those\n * widgets within the parent's DOM node.\n *\n * This class implements the base functionality which is required of\n * nearly all layouts. It must be subclassed in order to be useful.\n *\n * Notably, this class does not define a uniform interface for adding\n * widgets to the layout. A subclass should define that API in a way\n * which is meaningful for its intended use.\n */\nclass Layout {\n /**\n * Construct a new layout.\n *\n * @param options - The options for initializing the layout.\n */\n constructor(options = {}) {\n this._disposed = false;\n this._parent = null;\n this._fitPolicy = options.fitPolicy || 'set-min-size';\n }\n /**\n * Dispose of the resources held by the layout.\n *\n * #### Notes\n * This should be reimplemented to clear and dispose of the widgets.\n *\n * All reimplementations should call the superclass method.\n *\n * This method is called automatically when the parent is disposed.\n */\n dispose() {\n this._parent = null;\n this._disposed = true;\n Signal.clearData(this);\n AttachedProperty.clearData(this);\n }\n /**\n * Test whether the layout is disposed.\n */\n get isDisposed() {\n return this._disposed;\n }\n /**\n * Get the parent widget of the layout.\n */\n get parent() {\n return this._parent;\n }\n /**\n * Set the parent widget of the layout.\n *\n * #### Notes\n * This is set automatically when installing the layout on the parent\n * widget. The parent widget should not be set directly by user code.\n */\n set parent(value) {\n if (this._parent === value) {\n return;\n }\n if (this._parent) {\n throw new Error('Cannot change parent widget.');\n }\n if (value.layout !== this) {\n throw new Error('Invalid parent widget.');\n }\n this._parent = value;\n this.init();\n }\n /**\n * Get the fit policy for the layout.\n *\n * #### Notes\n * The fit policy controls the computed size constraints which are\n * applied to the parent widget by the layout.\n *\n * Some layout implementations may ignore the fit policy.\n */\n get fitPolicy() {\n return this._fitPolicy;\n }\n /**\n * Set the fit policy for the layout.\n *\n * #### Notes\n * The fit policy controls the computed size constraints which are\n * applied to the parent widget by the layout.\n *\n * Some layout implementations may ignore the fit policy.\n *\n * Changing the fit policy will clear the current size constraint\n * for the parent widget and then re-fit the parent.\n */\n set fitPolicy(value) {\n // Bail if the policy does not change\n if (this._fitPolicy === value) {\n return;\n }\n // Update the internal policy.\n this._fitPolicy = value;\n // Clear the size constraints and schedule a fit of the parent.\n if (this._parent) {\n let style = this._parent.node.style;\n style.minWidth = '';\n style.minHeight = '';\n style.maxWidth = '';\n style.maxHeight = '';\n this._parent.fit();\n }\n }\n /**\n * Process a message sent to the parent widget.\n *\n * @param msg - The message sent to the parent widget.\n *\n * #### Notes\n * This method is called by the parent widget to process a message.\n *\n * Subclasses may reimplement this method as needed.\n */\n processParentMessage(msg) {\n switch (msg.type) {\n case 'resize':\n this.onResize(msg);\n break;\n case 'update-request':\n this.onUpdateRequest(msg);\n break;\n case 'fit-request':\n this.onFitRequest(msg);\n break;\n case 'before-show':\n this.onBeforeShow(msg);\n break;\n case 'after-show':\n this.onAfterShow(msg);\n break;\n case 'before-hide':\n this.onBeforeHide(msg);\n break;\n case 'after-hide':\n this.onAfterHide(msg);\n break;\n case 'before-attach':\n this.onBeforeAttach(msg);\n break;\n case 'after-attach':\n this.onAfterAttach(msg);\n break;\n case 'before-detach':\n this.onBeforeDetach(msg);\n break;\n case 'after-detach':\n this.onAfterDetach(msg);\n break;\n case 'child-removed':\n this.onChildRemoved(msg);\n break;\n case 'child-shown':\n this.onChildShown(msg);\n break;\n case 'child-hidden':\n this.onChildHidden(msg);\n break;\n }\n }\n /**\n * Perform layout initialization which requires the parent widget.\n *\n * #### Notes\n * This method is invoked immediately after the layout is installed\n * on the parent widget.\n *\n * The default implementation reparents all of the widgets to the\n * layout parent widget.\n *\n * Subclasses should reimplement this method and attach the child\n * widget nodes to the parent widget's node.\n */\n init() {\n for (const widget of this) {\n widget.parent = this.parent;\n }\n }\n /**\n * A message handler invoked on a `'resize'` message.\n *\n * #### Notes\n * The layout should ensure that its widgets are resized according\n * to the specified layout space, and that they are sent a `'resize'`\n * message if appropriate.\n *\n * The default implementation of this method sends an `UnknownSize`\n * resize message to all widgets.\n *\n * This may be reimplemented by subclasses as needed.\n */\n onResize(msg) {\n for (const widget of this) {\n MessageLoop.sendMessage(widget, Widget.ResizeMessage.UnknownSize);\n }\n }\n /**\n * A message handler invoked on an `'update-request'` message.\n *\n * #### Notes\n * The layout should ensure that its widgets are resized according\n * to the available layout space, and that they are sent a `'resize'`\n * message if appropriate.\n *\n * The default implementation of this method sends an `UnknownSize`\n * resize message to all widgets.\n *\n * This may be reimplemented by subclasses as needed.\n */\n onUpdateRequest(msg) {\n for (const widget of this) {\n MessageLoop.sendMessage(widget, Widget.ResizeMessage.UnknownSize);\n }\n }\n /**\n * A message handler invoked on a `'before-attach'` message.\n *\n * #### Notes\n * The default implementation of this method forwards the message\n * to all widgets. It assumes all widget nodes are attached to the\n * parent widget node.\n *\n * This may be reimplemented by subclasses as needed.\n */\n onBeforeAttach(msg) {\n for (const widget of this) {\n MessageLoop.sendMessage(widget, msg);\n }\n }\n /**\n * A message handler invoked on an `'after-attach'` message.\n *\n * #### Notes\n * The default implementation of this method forwards the message\n * to all widgets. It assumes all widget nodes are attached to the\n * parent widget node.\n *\n * This may be reimplemented by subclasses as needed.\n */\n onAfterAttach(msg) {\n for (const widget of this) {\n MessageLoop.sendMessage(widget, msg);\n }\n }\n /**\n * A message handler invoked on a `'before-detach'` message.\n *\n * #### Notes\n * The default implementation of this method forwards the message\n * to all widgets. It assumes all widget nodes are attached to the\n * parent widget node.\n *\n * This may be reimplemented by subclasses as needed.\n */\n onBeforeDetach(msg) {\n for (const widget of this) {\n MessageLoop.sendMessage(widget, msg);\n }\n }\n /**\n * A message handler invoked on an `'after-detach'` message.\n *\n * #### Notes\n * The default implementation of this method forwards the message\n * to all widgets. It assumes all widget nodes are attached to the\n * parent widget node.\n *\n * This may be reimplemented by subclasses as needed.\n */\n onAfterDetach(msg) {\n for (const widget of this) {\n MessageLoop.sendMessage(widget, msg);\n }\n }\n /**\n * A message handler invoked on a `'before-show'` message.\n *\n * #### Notes\n * The default implementation of this method forwards the message to\n * all non-hidden widgets. It assumes all widget nodes are attached\n * to the parent widget node.\n *\n * This may be reimplemented by subclasses as needed.\n */\n onBeforeShow(msg) {\n for (const widget of this) {\n if (!widget.isHidden) {\n MessageLoop.sendMessage(widget, msg);\n }\n }\n }\n /**\n * A message handler invoked on an `'after-show'` message.\n *\n * #### Notes\n * The default implementation of this method forwards the message to\n * all non-hidden widgets. It assumes all widget nodes are attached\n * to the parent widget node.\n *\n * This may be reimplemented by subclasses as needed.\n */\n onAfterShow(msg) {\n for (const widget of this) {\n if (!widget.isHidden) {\n MessageLoop.sendMessage(widget, msg);\n }\n }\n }\n /**\n * A message handler invoked on a `'before-hide'` message.\n *\n * #### Notes\n * The default implementation of this method forwards the message to\n * all non-hidden widgets. It assumes all widget nodes are attached\n * to the parent widget node.\n *\n * This may be reimplemented by subclasses as needed.\n */\n onBeforeHide(msg) {\n for (const widget of this) {\n if (!widget.isHidden) {\n MessageLoop.sendMessage(widget, msg);\n }\n }\n }\n /**\n * A message handler invoked on an `'after-hide'` message.\n *\n * #### Notes\n * The default implementation of this method forwards the message to\n * all non-hidden widgets. It assumes all widget nodes are attached\n * to the parent widget node.\n *\n * This may be reimplemented by subclasses as needed.\n */\n onAfterHide(msg) {\n for (const widget of this) {\n if (!widget.isHidden) {\n MessageLoop.sendMessage(widget, msg);\n }\n }\n }\n /**\n * A message handler invoked on a `'child-removed'` message.\n *\n * #### Notes\n * This will remove the child widget from the layout.\n *\n * Subclasses should **not** typically reimplement this method.\n */\n onChildRemoved(msg) {\n this.removeWidget(msg.child);\n }\n /**\n * A message handler invoked on a `'fit-request'` message.\n *\n * #### Notes\n * The default implementation of this handler is a no-op.\n */\n onFitRequest(msg) { }\n /**\n * A message handler invoked on a `'child-shown'` message.\n *\n * #### Notes\n * The default implementation of this handler is a no-op.\n */\n onChildShown(msg) { }\n /**\n * A message handler invoked on a `'child-hidden'` message.\n *\n * #### Notes\n * The default implementation of this handler is a no-op.\n */\n onChildHidden(msg) { }\n}\n/**\n * The namespace for the `Layout` class statics.\n */\n(function (Layout) {\n /**\n * Get the horizontal alignment for a widget.\n *\n * @param widget - The widget of interest.\n *\n * @returns The horizontal alignment for the widget.\n *\n * #### Notes\n * If the layout width allocated to a widget is larger than its max\n * width, the horizontal alignment controls how the widget is placed\n * within the extra horizontal space.\n *\n * If the allocated width is less than the widget's max width, the\n * horizontal alignment has no effect.\n *\n * Some layout implementations may ignore horizontal alignment.\n */\n function getHorizontalAlignment(widget) {\n return Private$i.horizontalAlignmentProperty.get(widget);\n }\n Layout.getHorizontalAlignment = getHorizontalAlignment;\n /**\n * Set the horizontal alignment for a widget.\n *\n * @param widget - The widget of interest.\n *\n * @param value - The value for the horizontal alignment.\n *\n * #### Notes\n * If the layout width allocated to a widget is larger than its max\n * width, the horizontal alignment controls how the widget is placed\n * within the extra horizontal space.\n *\n * If the allocated width is less than the widget's max width, the\n * horizontal alignment has no effect.\n *\n * Some layout implementations may ignore horizontal alignment.\n *\n * Changing the horizontal alignment will post an `update-request`\n * message to widget's parent, provided the parent has a layout\n * installed.\n */\n function setHorizontalAlignment(widget, value) {\n Private$i.horizontalAlignmentProperty.set(widget, value);\n }\n Layout.setHorizontalAlignment = setHorizontalAlignment;\n /**\n * Get the vertical alignment for a widget.\n *\n * @param widget - The widget of interest.\n *\n * @returns The vertical alignment for the widget.\n *\n * #### Notes\n * If the layout height allocated to a widget is larger than its max\n * height, the vertical alignment controls how the widget is placed\n * within the extra vertical space.\n *\n * If the allocated height is less than the widget's max height, the\n * vertical alignment has no effect.\n *\n * Some layout implementations may ignore vertical alignment.\n */\n function getVerticalAlignment(widget) {\n return Private$i.verticalAlignmentProperty.get(widget);\n }\n Layout.getVerticalAlignment = getVerticalAlignment;\n /**\n * Set the vertical alignment for a widget.\n *\n * @param widget - The widget of interest.\n *\n * @param value - The value for the vertical alignment.\n *\n * #### Notes\n * If the layout height allocated to a widget is larger than its max\n * height, the vertical alignment controls how the widget is placed\n * within the extra vertical space.\n *\n * If the allocated height is less than the widget's max height, the\n * vertical alignment has no effect.\n *\n * Some layout implementations may ignore vertical alignment.\n *\n * Changing the horizontal alignment will post an `update-request`\n * message to widget's parent, provided the parent has a layout\n * installed.\n */\n function setVerticalAlignment(widget, value) {\n Private$i.verticalAlignmentProperty.set(widget, value);\n }\n Layout.setVerticalAlignment = setVerticalAlignment;\n})(Layout || (Layout = {}));\n/**\n * An object which assists in the absolute layout of widgets.\n *\n * #### Notes\n * This class is useful when implementing a layout which arranges its\n * widgets using absolute positioning.\n *\n * This class is used by nearly all of the built-in lumino layouts.\n */\nclass LayoutItem {\n /**\n * Construct a new layout item.\n *\n * @param widget - The widget to be managed by the item.\n *\n * #### Notes\n * The widget will be set to absolute positioning.\n * The widget will use strict CSS containment.\n */\n constructor(widget) {\n this._top = NaN;\n this._left = NaN;\n this._width = NaN;\n this._height = NaN;\n this._minWidth = 0;\n this._minHeight = 0;\n this._maxWidth = Infinity;\n this._maxHeight = Infinity;\n this._disposed = false;\n this.widget = widget;\n this.widget.node.style.position = 'absolute';\n this.widget.node.style.contain = 'strict';\n }\n /**\n * Dispose of the the layout item.\n *\n * #### Notes\n * This will reset the positioning of the widget.\n */\n dispose() {\n // Do nothing if the item is already disposed.\n if (this._disposed) {\n return;\n }\n // Mark the item as disposed.\n this._disposed = true;\n // Reset the widget style.\n let style = this.widget.node.style;\n style.position = '';\n style.top = '';\n style.left = '';\n style.width = '';\n style.height = '';\n style.contain = '';\n }\n /**\n * The computed minimum width of the widget.\n *\n * #### Notes\n * This value can be updated by calling the `fit` method.\n */\n get minWidth() {\n return this._minWidth;\n }\n /**\n * The computed minimum height of the widget.\n *\n * #### Notes\n * This value can be updated by calling the `fit` method.\n */\n get minHeight() {\n return this._minHeight;\n }\n /**\n * The computed maximum width of the widget.\n *\n * #### Notes\n * This value can be updated by calling the `fit` method.\n */\n get maxWidth() {\n return this._maxWidth;\n }\n /**\n * The computed maximum height of the widget.\n *\n * #### Notes\n * This value can be updated by calling the `fit` method.\n */\n get maxHeight() {\n return this._maxHeight;\n }\n /**\n * Whether the layout item is disposed.\n */\n get isDisposed() {\n return this._disposed;\n }\n /**\n * Whether the managed widget is hidden.\n */\n get isHidden() {\n return this.widget.isHidden;\n }\n /**\n * Whether the managed widget is visible.\n */\n get isVisible() {\n return this.widget.isVisible;\n }\n /**\n * Whether the managed widget is attached.\n */\n get isAttached() {\n return this.widget.isAttached;\n }\n /**\n * Update the computed size limits of the managed widget.\n */\n fit() {\n let limits = ElementExt.sizeLimits(this.widget.node);\n this._minWidth = limits.minWidth;\n this._minHeight = limits.minHeight;\n this._maxWidth = limits.maxWidth;\n this._maxHeight = limits.maxHeight;\n }\n /**\n * Update the position and size of the managed widget.\n *\n * @param left - The left edge position of the layout box.\n *\n * @param top - The top edge position of the layout box.\n *\n * @param width - The width of the layout box.\n *\n * @param height - The height of the layout box.\n */\n update(left, top, width, height) {\n // Clamp the size to the computed size limits.\n let clampW = Math.max(this._minWidth, Math.min(width, this._maxWidth));\n let clampH = Math.max(this._minHeight, Math.min(height, this._maxHeight));\n // Adjust the left edge for the horizontal alignment, if needed.\n if (clampW < width) {\n switch (Layout.getHorizontalAlignment(this.widget)) {\n case 'left':\n break;\n case 'center':\n left += (width - clampW) / 2;\n break;\n case 'right':\n left += width - clampW;\n break;\n default:\n throw 'unreachable';\n }\n }\n // Adjust the top edge for the vertical alignment, if needed.\n if (clampH < height) {\n switch (Layout.getVerticalAlignment(this.widget)) {\n case 'top':\n break;\n case 'center':\n top += (height - clampH) / 2;\n break;\n case 'bottom':\n top += height - clampH;\n break;\n default:\n throw 'unreachable';\n }\n }\n // Set up the resize variables.\n let resized = false;\n let style = this.widget.node.style;\n // Update the top edge of the widget if needed.\n if (this._top !== top) {\n this._top = top;\n style.top = `${top}px`;\n }\n // Update the left edge of the widget if needed.\n if (this._left !== left) {\n this._left = left;\n style.left = `${left}px`;\n }\n // Update the width of the widget if needed.\n if (this._width !== clampW) {\n resized = true;\n this._width = clampW;\n style.width = `${clampW}px`;\n }\n // Update the height of the widget if needed.\n if (this._height !== clampH) {\n resized = true;\n this._height = clampH;\n style.height = `${clampH}px`;\n }\n // Send a resize message to the widget if needed.\n if (resized) {\n let msg = new Widget.ResizeMessage(clampW, clampH);\n MessageLoop.sendMessage(this.widget, msg);\n }\n }\n}\n/**\n * The namespace for the module implementation details.\n */\nvar Private$i;\n(function (Private) {\n /**\n * The attached property for a widget horizontal alignment.\n */\n Private.horizontalAlignmentProperty = new AttachedProperty({\n name: 'horizontalAlignment',\n create: () => 'center',\n changed: onAlignmentChanged\n });\n /**\n * The attached property for a widget vertical alignment.\n */\n Private.verticalAlignmentProperty = new AttachedProperty({\n name: 'verticalAlignment',\n create: () => 'top',\n changed: onAlignmentChanged\n });\n /**\n * The change handler for the attached alignment properties.\n */\n function onAlignmentChanged(child) {\n if (child.parent && child.parent.layout) {\n child.parent.update();\n }\n }\n})(Private$i || (Private$i = {}));\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * A concrete layout implementation suitable for many use cases.\n *\n * #### Notes\n * This class is suitable as a base class for implementing a variety of\n * layouts, but can also be used directly with standard CSS to layout a\n * collection of widgets.\n */\nclass PanelLayout extends Layout {\n constructor() {\n super(...arguments);\n this._widgets = [];\n }\n /**\n * Dispose of the resources held by the layout.\n *\n * #### Notes\n * This will clear and dispose all widgets in the layout.\n *\n * All reimplementations should call the superclass method.\n *\n * This method is called automatically when the parent is disposed.\n */\n dispose() {\n while (this._widgets.length > 0) {\n this._widgets.pop().dispose();\n }\n super.dispose();\n }\n /**\n * A read-only array of the widgets in the layout.\n */\n get widgets() {\n return this._widgets;\n }\n /**\n * Create an iterator over the widgets in the layout.\n *\n * @returns A new iterator over the widgets in the layout.\n */\n *[Symbol.iterator]() {\n yield* this._widgets;\n }\n /**\n * Add a widget to the end of the layout.\n *\n * @param widget - The widget to add to the layout.\n *\n * #### Notes\n * If the widget is already contained in the layout, it will be moved.\n */\n addWidget(widget) {\n this.insertWidget(this._widgets.length, widget);\n }\n /**\n * Insert a widget into the layout at the specified index.\n *\n * @param index - The index at which to insert the widget.\n *\n * @param widget - The widget to insert into the layout.\n *\n * #### Notes\n * The index will be clamped to the bounds of the widgets.\n *\n * If the widget is already added to the layout, it will be moved.\n *\n * #### Undefined Behavior\n * An `index` which is non-integral.\n */\n insertWidget(index, widget) {\n // Remove the widget from its current parent. This is a no-op\n // if the widget's parent is already the layout parent widget.\n widget.parent = this.parent;\n // Look up the current index of the widget.\n let i = this._widgets.indexOf(widget);\n // Clamp the insert index to the array bounds.\n let j = Math.max(0, Math.min(index, this._widgets.length));\n // If the widget is not in the array, insert it.\n if (i === -1) {\n // Insert the widget into the array.\n ArrayExt.insert(this._widgets, j, widget);\n // If the layout is parented, attach the widget to the DOM.\n if (this.parent) {\n this.attachWidget(j, widget);\n }\n // There is nothing more to do.\n return;\n }\n // Otherwise, the widget exists in the array and should be moved.\n // Adjust the index if the location is at the end of the array.\n if (j === this._widgets.length) {\n j--;\n }\n // Bail if there is no effective move.\n if (i === j) {\n return;\n }\n // Move the widget to the new location.\n ArrayExt.move(this._widgets, i, j);\n // If the layout is parented, move the widget in the DOM.\n if (this.parent) {\n this.moveWidget(i, j, widget);\n }\n }\n /**\n * Remove a widget from the layout.\n *\n * @param widget - The widget to remove from the layout.\n *\n * #### Notes\n * A widget is automatically removed from the layout when its `parent`\n * is set to `null`. This method should only be invoked directly when\n * removing a widget from a layout which has yet to be installed on a\n * parent widget.\n *\n * This method does *not* modify the widget's `parent`.\n */\n removeWidget(widget) {\n this.removeWidgetAt(this._widgets.indexOf(widget));\n }\n /**\n * Remove the widget at a given index from the layout.\n *\n * @param index - The index of the widget to remove.\n *\n * #### Notes\n * A widget is automatically removed from the layout when its `parent`\n * is set to `null`. This method should only be invoked directly when\n * removing a widget from a layout which has yet to be installed on a\n * parent widget.\n *\n * This method does *not* modify the widget's `parent`.\n *\n * #### Undefined Behavior\n * An `index` which is non-integral.\n */\n removeWidgetAt(index) {\n // Remove the widget from the array.\n let widget = ArrayExt.removeAt(this._widgets, index);\n // If the layout is parented, detach the widget from the DOM.\n if (widget && this.parent) {\n this.detachWidget(index, widget);\n }\n }\n /**\n * Perform layout initialization which requires the parent widget.\n */\n init() {\n super.init();\n let index = 0;\n for (const widget of this) {\n this.attachWidget(index++, widget);\n }\n }\n /**\n * Attach a widget to the parent's DOM node.\n *\n * @param index - The current index of the widget in the layout.\n *\n * @param widget - The widget to attach to the parent.\n *\n * #### Notes\n * This method is called automatically by the panel layout at the\n * appropriate time. It should not be called directly by user code.\n *\n * The default implementation adds the widgets's node to the parent's\n * node at the proper location, and sends the appropriate attach\n * messages to the widget if the parent is attached to the DOM.\n *\n * Subclasses may reimplement this method to control how the widget's\n * node is added to the parent's node.\n */\n attachWidget(index, widget) {\n // Look up the next sibling reference node.\n let ref = this.parent.node.children[index];\n // Send a `'before-attach'` message if the parent is attached.\n if (this.parent.isAttached) {\n MessageLoop.sendMessage(widget, Widget.Msg.BeforeAttach);\n }\n // Insert the widget's node before the sibling.\n this.parent.node.insertBefore(widget.node, ref);\n // Send an `'after-attach'` message if the parent is attached.\n if (this.parent.isAttached) {\n MessageLoop.sendMessage(widget, Widget.Msg.AfterAttach);\n }\n }\n /**\n * Move a widget in the parent's DOM node.\n *\n * @param fromIndex - The previous index of the widget in the layout.\n *\n * @param toIndex - The current index of the widget in the layout.\n *\n * @param widget - The widget to move in the parent.\n *\n * #### Notes\n * This method is called automatically by the panel layout at the\n * appropriate time. It should not be called directly by user code.\n *\n * The default implementation moves the widget's node to the proper\n * location in the parent's node and sends the appropriate attach and\n * detach messages to the widget if the parent is attached to the DOM.\n *\n * Subclasses may reimplement this method to control how the widget's\n * node is moved in the parent's node.\n */\n moveWidget(fromIndex, toIndex, widget) {\n // Send a `'before-detach'` message if the parent is attached.\n if (this.parent.isAttached) {\n MessageLoop.sendMessage(widget, Widget.Msg.BeforeDetach);\n }\n // Remove the widget's node from the parent.\n this.parent.node.removeChild(widget.node);\n // Send an `'after-detach'` and message if the parent is attached.\n if (this.parent.isAttached) {\n MessageLoop.sendMessage(widget, Widget.Msg.AfterDetach);\n }\n // Look up the next sibling reference node.\n let ref = this.parent.node.children[toIndex];\n // Send a `'before-attach'` message if the parent is attached.\n if (this.parent.isAttached) {\n MessageLoop.sendMessage(widget, Widget.Msg.BeforeAttach);\n }\n // Insert the widget's node before the sibling.\n this.parent.node.insertBefore(widget.node, ref);\n // Send an `'after-attach'` message if the parent is attached.\n if (this.parent.isAttached) {\n MessageLoop.sendMessage(widget, Widget.Msg.AfterAttach);\n }\n }\n /**\n * Detach a widget from the parent's DOM node.\n *\n * @param index - The previous index of the widget in the layout.\n *\n * @param widget - The widget to detach from the parent.\n *\n * #### Notes\n * This method is called automatically by the panel layout at the\n * appropriate time. It should not be called directly by user code.\n *\n * The default implementation removes the widget's node from the\n * parent's node, and sends the appropriate detach messages to the\n * widget if the parent is attached to the DOM.\n *\n * Subclasses may reimplement this method to control how the widget's\n * node is removed from the parent's node.\n */\n detachWidget(index, widget) {\n // Send a `'before-detach'` message if the parent is attached.\n if (this.parent.isAttached) {\n MessageLoop.sendMessage(widget, Widget.Msg.BeforeDetach);\n }\n // Remove the widget's node from the parent.\n this.parent.node.removeChild(widget.node);\n // Send an `'after-detach'` message if the parent is attached.\n if (this.parent.isAttached) {\n MessageLoop.sendMessage(widget, Widget.Msg.AfterDetach);\n }\n }\n}\n\n/*\n * Copyright (c) Jupyter Development Team.\n * Distributed under the terms of the Modified BSD License.\n */\nvar Utils;\n(function (Utils) {\n /**\n * Clamp a dimension value to an integer >= 0.\n */\n function clampDimension(value) {\n return Math.max(0, Math.floor(value));\n }\n Utils.clampDimension = clampDimension;\n})(Utils || (Utils = {}));\nvar Utils$1 = Utils;\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * A layout which arranges its widgets into resizable sections.\n */\nclass SplitLayout extends PanelLayout {\n /**\n * Construct a new split layout.\n *\n * @param options - The options for initializing the layout.\n */\n constructor(options) {\n super();\n this.widgetOffset = 0;\n this._fixed = 0;\n this._spacing = 4;\n this._dirty = false;\n this._hasNormedSizes = false;\n this._sizers = [];\n this._items = [];\n this._handles = [];\n this._box = null;\n this._alignment = 'start';\n this._orientation = 'horizontal';\n this.renderer = options.renderer;\n if (options.orientation !== undefined) {\n this._orientation = options.orientation;\n }\n if (options.alignment !== undefined) {\n this._alignment = options.alignment;\n }\n if (options.spacing !== undefined) {\n this._spacing = Utils.clampDimension(options.spacing);\n }\n }\n /**\n * Dispose of the resources held by the layout.\n */\n dispose() {\n // Dispose of the layout items.\n for (const item of this._items) {\n item.dispose();\n }\n // Clear the layout state.\n this._box = null;\n this._items.length = 0;\n this._sizers.length = 0;\n this._handles.length = 0;\n // Dispose of the rest of the layout.\n super.dispose();\n }\n /**\n * Get the layout orientation for the split layout.\n */\n get orientation() {\n return this._orientation;\n }\n /**\n * Set the layout orientation for the split layout.\n */\n set orientation(value) {\n if (this._orientation === value) {\n return;\n }\n this._orientation = value;\n if (!this.parent) {\n return;\n }\n this.parent.dataset['orientation'] = value;\n this.parent.fit();\n }\n /**\n * Get the content alignment for the split layout.\n *\n * #### Notes\n * This is the alignment of the widgets in the layout direction.\n *\n * The alignment has no effect if the widgets can expand to fill the\n * entire split layout.\n */\n get alignment() {\n return this._alignment;\n }\n /**\n * Set the content alignment for the split layout.\n *\n * #### Notes\n * This is the alignment of the widgets in the layout direction.\n *\n * The alignment has no effect if the widgets can expand to fill the\n * entire split layout.\n */\n set alignment(value) {\n if (this._alignment === value) {\n return;\n }\n this._alignment = value;\n if (!this.parent) {\n return;\n }\n this.parent.dataset['alignment'] = value;\n this.parent.update();\n }\n /**\n * Get the inter-element spacing for the split layout.\n */\n get spacing() {\n return this._spacing;\n }\n /**\n * Set the inter-element spacing for the split layout.\n */\n set spacing(value) {\n value = Utils.clampDimension(value);\n if (this._spacing === value) {\n return;\n }\n this._spacing = value;\n if (!this.parent) {\n return;\n }\n this.parent.fit();\n }\n /**\n * A read-only array of the split handles in the layout.\n */\n get handles() {\n return this._handles;\n }\n /**\n * Get the absolute sizes of the widgets in the layout.\n *\n * @returns A new array of the absolute sizes of the widgets.\n *\n * This method **does not** measure the DOM nodes.\n */\n absoluteSizes() {\n return this._sizers.map(sizer => sizer.size);\n }\n /**\n * Get the relative sizes of the widgets in the layout.\n *\n * @returns A new array of the relative sizes of the widgets.\n *\n * #### Notes\n * The returned sizes reflect the sizes of the widgets normalized\n * relative to their siblings.\n *\n * This method **does not** measure the DOM nodes.\n */\n relativeSizes() {\n return Private$h.normalize(this._sizers.map(sizer => sizer.size));\n }\n /**\n * Set the relative sizes for the widgets in the layout.\n *\n * @param sizes - The relative sizes for the widgets in the panel.\n * @param update - Update the layout after setting relative sizes.\n * Default is True.\n *\n * #### Notes\n * Extra values are ignored, too few will yield an undefined layout.\n *\n * The actual geometry of the DOM nodes is updated asynchronously.\n */\n setRelativeSizes(sizes, update = true) {\n // Copy the sizes and pad with zeros as needed.\n let n = this._sizers.length;\n let temp = sizes.slice(0, n);\n while (temp.length < n) {\n temp.push(0);\n }\n // Normalize the padded sizes.\n let normed = Private$h.normalize(temp);\n // Apply the normalized sizes to the sizers.\n for (let i = 0; i < n; ++i) {\n let sizer = this._sizers[i];\n sizer.sizeHint = normed[i];\n sizer.size = normed[i];\n }\n // Set the flag indicating the sizes are normalized.\n this._hasNormedSizes = true;\n // Trigger an update of the parent widget.\n if (update && this.parent) {\n this.parent.update();\n }\n }\n /**\n * Move the offset position of a split handle.\n *\n * @param index - The index of the handle of the interest.\n *\n * @param position - The desired offset position of the handle.\n *\n * #### Notes\n * The position is relative to the offset parent.\n *\n * This will move the handle as close as possible to the desired\n * position. The sibling widgets will be adjusted as necessary.\n */\n moveHandle(index, position) {\n // Bail if the index is invalid or the handle is hidden.\n let handle = this._handles[index];\n if (!handle || handle.classList.contains('lm-mod-hidden')) {\n return;\n }\n // Compute the desired delta movement for the handle.\n let delta;\n if (this._orientation === 'horizontal') {\n delta = position - handle.offsetLeft;\n }\n else {\n delta = position - handle.offsetTop;\n }\n // Bail if there is no handle movement.\n if (delta === 0) {\n return;\n }\n // Prevent widget resizing unless needed.\n for (let sizer of this._sizers) {\n if (sizer.size > 0) {\n sizer.sizeHint = sizer.size;\n }\n }\n // Adjust the sizers to reflect the handle movement.\n BoxEngine.adjust(this._sizers, index, delta);\n // Update the layout of the widgets.\n if (this.parent) {\n this.parent.update();\n }\n }\n /**\n * Perform layout initialization which requires the parent widget.\n */\n init() {\n this.parent.dataset['orientation'] = this.orientation;\n this.parent.dataset['alignment'] = this.alignment;\n super.init();\n }\n /**\n * Attach a widget to the parent's DOM node.\n *\n * @param index - The current index of the widget in the layout.\n *\n * @param widget - The widget to attach to the parent.\n *\n * #### Notes\n * This is a reimplementation of the superclass method.\n */\n attachWidget(index, widget) {\n // Create the item, handle, and sizer for the new widget.\n let item = new LayoutItem(widget);\n let handle = Private$h.createHandle(this.renderer);\n let average = Private$h.averageSize(this._sizers);\n let sizer = Private$h.createSizer(average);\n // Insert the item, handle, and sizer into the internal arrays.\n ArrayExt.insert(this._items, index, item);\n ArrayExt.insert(this._sizers, index, sizer);\n ArrayExt.insert(this._handles, index, handle);\n // Send a `'before-attach'` message if the parent is attached.\n if (this.parent.isAttached) {\n MessageLoop.sendMessage(widget, Widget.Msg.BeforeAttach);\n }\n // Add the widget and handle nodes to the parent.\n this.parent.node.appendChild(widget.node);\n this.parent.node.appendChild(handle);\n // Send an `'after-attach'` message if the parent is attached.\n if (this.parent.isAttached) {\n MessageLoop.sendMessage(widget, Widget.Msg.AfterAttach);\n }\n // Post a fit request for the parent widget.\n this.parent.fit();\n }\n /**\n * Move a widget in the parent's DOM node.\n *\n * @param fromIndex - The previous index of the widget in the layout.\n *\n * @param toIndex - The current index of the widget in the layout.\n *\n * @param widget - The widget to move in the parent.\n *\n * #### Notes\n * This is a reimplementation of the superclass method.\n */\n moveWidget(fromIndex, toIndex, widget) {\n // Move the item, sizer, and handle for the widget.\n ArrayExt.move(this._items, fromIndex, toIndex);\n ArrayExt.move(this._sizers, fromIndex, toIndex);\n ArrayExt.move(this._handles, fromIndex, toIndex);\n // Post a fit request to the parent to show/hide last handle.\n this.parent.fit();\n }\n /**\n * Detach a widget from the parent's DOM node.\n *\n * @param index - The previous index of the widget in the layout.\n *\n * @param widget - The widget to detach from the parent.\n *\n * #### Notes\n * This is a reimplementation of the superclass method.\n */\n detachWidget(index, widget) {\n // Remove the item, handle, and sizer for the widget.\n let item = ArrayExt.removeAt(this._items, index);\n let handle = ArrayExt.removeAt(this._handles, index);\n ArrayExt.removeAt(this._sizers, index);\n // Send a `'before-detach'` message if the parent is attached.\n if (this.parent.isAttached) {\n MessageLoop.sendMessage(widget, Widget.Msg.BeforeDetach);\n }\n // Remove the widget and handle nodes from the parent.\n this.parent.node.removeChild(widget.node);\n this.parent.node.removeChild(handle);\n // Send an `'after-detach'` message if the parent is attached.\n if (this.parent.isAttached) {\n MessageLoop.sendMessage(widget, Widget.Msg.AfterDetach);\n }\n // Dispose of the layout item.\n item.dispose();\n // Post a fit request for the parent widget.\n this.parent.fit();\n }\n /**\n * A message handler invoked on a `'before-show'` message.\n */\n onBeforeShow(msg) {\n super.onBeforeShow(msg);\n this.parent.update();\n }\n /**\n * A message handler invoked on a `'before-attach'` message.\n */\n onBeforeAttach(msg) {\n super.onBeforeAttach(msg);\n this.parent.fit();\n }\n /**\n * A message handler invoked on a `'child-shown'` message.\n */\n onChildShown(msg) {\n this.parent.fit();\n }\n /**\n * A message handler invoked on a `'child-hidden'` message.\n */\n onChildHidden(msg) {\n this.parent.fit();\n }\n /**\n * A message handler invoked on a `'resize'` message.\n */\n onResize(msg) {\n if (this.parent.isVisible) {\n this._update(msg.width, msg.height);\n }\n }\n /**\n * A message handler invoked on an `'update-request'` message.\n */\n onUpdateRequest(msg) {\n if (this.parent.isVisible) {\n this._update(-1, -1);\n }\n }\n /**\n * A message handler invoked on a `'fit-request'` message.\n */\n onFitRequest(msg) {\n if (this.parent.isAttached) {\n this._fit();\n }\n }\n /**\n * Update the item position.\n *\n * @param i Item index\n * @param isHorizontal Whether the layout is horizontal or not\n * @param left Left position in pixels\n * @param top Top position in pixels\n * @param height Item height\n * @param width Item width\n * @param size Item size\n */\n updateItemPosition(i, isHorizontal, left, top, height, width, size) {\n const item = this._items[i];\n if (item.isHidden) {\n return;\n }\n // Fetch the style for the handle.\n let handleStyle = this._handles[i].style;\n // Update the widget and handle, and advance the relevant edge.\n if (isHorizontal) {\n left += this.widgetOffset;\n item.update(left, top, size, height);\n left += size;\n handleStyle.top = `${top}px`;\n handleStyle.left = `${left}px`;\n handleStyle.width = `${this._spacing}px`;\n handleStyle.height = `${height}px`;\n }\n else {\n top += this.widgetOffset;\n item.update(left, top, width, size);\n top += size;\n handleStyle.top = `${top}px`;\n handleStyle.left = `${left}px`;\n handleStyle.width = `${width}px`;\n handleStyle.height = `${this._spacing}px`;\n }\n }\n /**\n * Fit the layout to the total size required by the widgets.\n */\n _fit() {\n // Update the handles and track the visible widget count.\n let nVisible = 0;\n let lastHandleIndex = -1;\n for (let i = 0, n = this._items.length; i < n; ++i) {\n if (this._items[i].isHidden) {\n this._handles[i].classList.add('lm-mod-hidden');\n }\n else {\n this._handles[i].classList.remove('lm-mod-hidden');\n lastHandleIndex = i;\n nVisible++;\n }\n }\n // Hide the handle for the last visible widget.\n if (lastHandleIndex !== -1) {\n this._handles[lastHandleIndex].classList.add('lm-mod-hidden');\n }\n // Update the fixed space for the visible items.\n this._fixed =\n this._spacing * Math.max(0, nVisible - 1) +\n this.widgetOffset * this._items.length;\n // Setup the computed minimum size.\n let horz = this._orientation === 'horizontal';\n let minW = horz ? this._fixed : 0;\n let minH = horz ? 0 : this._fixed;\n // Update the sizers and computed size limits.\n for (let i = 0, n = this._items.length; i < n; ++i) {\n // Fetch the item and corresponding box sizer.\n let item = this._items[i];\n let sizer = this._sizers[i];\n // Prevent resizing unless necessary.\n if (sizer.size > 0) {\n sizer.sizeHint = sizer.size;\n }\n // If the item is hidden, it should consume zero size.\n if (item.isHidden) {\n sizer.minSize = 0;\n sizer.maxSize = 0;\n continue;\n }\n // Update the size limits for the item.\n item.fit();\n // Update the stretch factor.\n sizer.stretch = SplitLayout.getStretch(item.widget);\n // Update the sizer limits and computed min size.\n if (horz) {\n sizer.minSize = item.minWidth;\n sizer.maxSize = item.maxWidth;\n minW += item.minWidth;\n minH = Math.max(minH, item.minHeight);\n }\n else {\n sizer.minSize = item.minHeight;\n sizer.maxSize = item.maxHeight;\n minH += item.minHeight;\n minW = Math.max(minW, item.minWidth);\n }\n }\n // Update the box sizing and add it to the computed min size.\n let box = (this._box = ElementExt.boxSizing(this.parent.node));\n minW += box.horizontalSum;\n minH += box.verticalSum;\n // Update the parent's min size constraints.\n let style = this.parent.node.style;\n style.minWidth = `${minW}px`;\n style.minHeight = `${minH}px`;\n // Set the dirty flag to ensure only a single update occurs.\n this._dirty = true;\n // Notify the ancestor that it should fit immediately. This may\n // cause a resize of the parent, fulfilling the required update.\n if (this.parent.parent) {\n MessageLoop.sendMessage(this.parent.parent, Widget.Msg.FitRequest);\n }\n // If the dirty flag is still set, the parent was not resized.\n // Trigger the required update on the parent widget immediately.\n if (this._dirty) {\n MessageLoop.sendMessage(this.parent, Widget.Msg.UpdateRequest);\n }\n }\n /**\n * Update the layout position and size of the widgets.\n *\n * The parent offset dimensions should be `-1` if unknown.\n */\n _update(offsetWidth, offsetHeight) {\n // Clear the dirty flag to indicate the update occurred.\n this._dirty = false;\n // Compute the visible item count.\n let nVisible = 0;\n for (let i = 0, n = this._items.length; i < n; ++i) {\n nVisible += +!this._items[i].isHidden;\n }\n // Bail early if there are no visible items to layout.\n if (nVisible === 0 && this.widgetOffset === 0) {\n return;\n }\n // Measure the parent if the offset dimensions are unknown.\n if (offsetWidth < 0) {\n offsetWidth = this.parent.node.offsetWidth;\n }\n if (offsetHeight < 0) {\n offsetHeight = this.parent.node.offsetHeight;\n }\n // Ensure the parent box sizing data is computed.\n if (!this._box) {\n this._box = ElementExt.boxSizing(this.parent.node);\n }\n // Compute the actual layout bounds adjusted for border and padding.\n let top = this._box.paddingTop;\n let left = this._box.paddingLeft;\n let width = offsetWidth - this._box.horizontalSum;\n let height = offsetHeight - this._box.verticalSum;\n // Set up the variables for justification and alignment offset.\n let extra = 0;\n let offset = 0;\n let horz = this._orientation === 'horizontal';\n if (nVisible > 0) {\n // Compute the adjusted layout space.\n let space;\n if (horz) {\n // left += this.widgetOffset;\n space = Math.max(0, width - this._fixed);\n }\n else {\n // top += this.widgetOffset;\n space = Math.max(0, height - this._fixed);\n }\n // Scale the size hints if they are normalized.\n if (this._hasNormedSizes) {\n for (let sizer of this._sizers) {\n sizer.sizeHint *= space;\n }\n this._hasNormedSizes = false;\n }\n // Distribute the layout space to the box sizers.\n let delta = BoxEngine.calc(this._sizers, space);\n // Account for alignment if there is extra layout space.\n if (delta > 0) {\n switch (this._alignment) {\n case 'start':\n break;\n case 'center':\n extra = 0;\n offset = delta / 2;\n break;\n case 'end':\n extra = 0;\n offset = delta;\n break;\n case 'justify':\n extra = delta / nVisible;\n offset = 0;\n break;\n default:\n throw 'unreachable';\n }\n }\n }\n // Layout the items using the computed box sizes.\n for (let i = 0, n = this._items.length; i < n; ++i) {\n // Fetch the item.\n const item = this._items[i];\n // Fetch the computed size for the widget.\n const size = item.isHidden ? 0 : this._sizers[i].size + extra;\n this.updateItemPosition(i, horz, horz ? left + offset : left, horz ? top : top + offset, height, width, size);\n const fullOffset = this.widgetOffset +\n (this._handles[i].classList.contains('lm-mod-hidden')\n ? 0\n : this._spacing);\n if (horz) {\n left += size + fullOffset;\n }\n else {\n top += size + fullOffset;\n }\n }\n }\n}\n/**\n * The namespace for the `SplitLayout` class statics.\n */\n(function (SplitLayout) {\n /**\n * Get the split layout stretch factor for the given widget.\n *\n * @param widget - The widget of interest.\n *\n * @returns The split layout stretch factor for the widget.\n */\n function getStretch(widget) {\n return Private$h.stretchProperty.get(widget);\n }\n SplitLayout.getStretch = getStretch;\n /**\n * Set the split layout stretch factor for the given widget.\n *\n * @param widget - The widget of interest.\n *\n * @param value - The value for the stretch factor.\n */\n function setStretch(widget, value) {\n Private$h.stretchProperty.set(widget, value);\n }\n SplitLayout.setStretch = setStretch;\n})(SplitLayout || (SplitLayout = {}));\n/**\n * The namespace for the module implementation details.\n */\nvar Private$h;\n(function (Private) {\n /**\n * The property descriptor for a widget stretch factor.\n */\n Private.stretchProperty = new AttachedProperty({\n name: 'stretch',\n create: () => 0,\n coerce: (owner, value) => Math.max(0, Math.floor(value)),\n changed: onChildSizingChanged\n });\n /**\n * Create a new box sizer with the given size hint.\n */\n function createSizer(size) {\n let sizer = new BoxSizer();\n sizer.sizeHint = Math.floor(size);\n return sizer;\n }\n Private.createSizer = createSizer;\n /**\n * Create a new split handle node using the given renderer.\n */\n function createHandle(renderer) {\n let handle = renderer.createHandle();\n handle.style.position = 'absolute';\n // Do not use size containment to allow the handle to fill the available space\n handle.style.contain = 'style';\n return handle;\n }\n Private.createHandle = createHandle;\n /**\n * Compute the average size of an array of box sizers.\n */\n function averageSize(sizers) {\n return sizers.reduce((v, s) => v + s.size, 0) / sizers.length || 0;\n }\n Private.averageSize = averageSize;\n /**\n * Normalize an array of values.\n */\n function normalize(values) {\n let n = values.length;\n if (n === 0) {\n return [];\n }\n let sum = values.reduce((a, b) => a + Math.abs(b), 0);\n return sum === 0 ? values.map(v => 1 / n) : values.map(v => v / sum);\n }\n Private.normalize = normalize;\n /**\n * The change handler for the attached sizing properties.\n */\n function onChildSizingChanged(child) {\n if (child.parent && child.parent.layout instanceof SplitLayout) {\n child.parent.fit();\n }\n }\n})(Private$h || (Private$h = {}));\n\n/*\n * Copyright (c) Jupyter Development Team.\n * Distributed under the terms of the Modified BSD License.\n */\n/**\n * A layout which arranges its widgets into collapsible resizable sections.\n */\nclass AccordionLayout extends SplitLayout {\n /**\n * Construct a new accordion layout.\n *\n * @param options - The options for initializing the layout.\n *\n * #### Notes\n * The default orientation will be vertical.\n *\n * Titles must be rotated for horizontal accordion panel using CSS: see accordionpanel.css\n */\n constructor(options) {\n super({ ...options, orientation: options.orientation || 'vertical' });\n this._titles = [];\n this.titleSpace = options.titleSpace || 22;\n }\n /**\n * The section title height or width depending on the orientation.\n */\n get titleSpace() {\n return this.widgetOffset;\n }\n set titleSpace(value) {\n value = Utils$1.clampDimension(value);\n if (this.widgetOffset === value) {\n return;\n }\n this.widgetOffset = value;\n if (!this.parent) {\n return;\n }\n this.parent.fit();\n }\n /**\n * A read-only array of the section titles in the panel.\n */\n get titles() {\n return this._titles;\n }\n /**\n * Dispose of the resources held by the layout.\n */\n dispose() {\n if (this.isDisposed) {\n return;\n }\n // Clear the layout state.\n this._titles.length = 0;\n // Dispose of the rest of the layout.\n super.dispose();\n }\n updateTitle(index, widget) {\n const oldTitle = this._titles[index];\n const expanded = oldTitle.classList.contains('lm-mod-expanded');\n const newTitle = Private$g.createTitle(this.renderer, widget.title, expanded);\n this._titles[index] = newTitle;\n // Add the title node to the parent before the widget.\n this.parent.node.replaceChild(newTitle, oldTitle);\n }\n /**\n * Insert a widget into the layout at the specified index.\n *\n * @param index - The index at which to insert the widget.\n *\n * @param widget - The widget to insert into the layout.\n *\n * #### Notes\n * The index will be clamped to the bounds of the widgets.\n *\n * If the widget is already added to the layout, it will be moved.\n *\n * #### Undefined Behavior\n * An `index` which is non-integral.\n */\n insertWidget(index, widget) {\n if (!widget.id) {\n widget.id = `id-${UUID.uuid4()}`;\n }\n super.insertWidget(index, widget);\n }\n /**\n * Attach a widget to the parent's DOM node.\n *\n * @param index - The current index of the widget in the layout.\n *\n * @param widget - The widget to attach to the parent.\n */\n attachWidget(index, widget) {\n const title = Private$g.createTitle(this.renderer, widget.title);\n ArrayExt.insert(this._titles, index, title);\n // Add the title node to the parent before the widget.\n this.parent.node.appendChild(title);\n widget.node.setAttribute('role', 'region');\n widget.node.setAttribute('aria-labelledby', title.id);\n super.attachWidget(index, widget);\n }\n /**\n * Move a widget in the parent's DOM node.\n *\n * @param fromIndex - The previous index of the widget in the layout.\n *\n * @param toIndex - The current index of the widget in the layout.\n *\n * @param widget - The widget to move in the parent.\n */\n moveWidget(fromIndex, toIndex, widget) {\n ArrayExt.move(this._titles, fromIndex, toIndex);\n super.moveWidget(fromIndex, toIndex, widget);\n }\n /**\n * Detach a widget from the parent's DOM node.\n *\n * @param index - The previous index of the widget in the layout.\n *\n * @param widget - The widget to detach from the parent.\n *\n * #### Notes\n * This is a reimplementation of the superclass method.\n */\n detachWidget(index, widget) {\n const title = ArrayExt.removeAt(this._titles, index);\n this.parent.node.removeChild(title);\n super.detachWidget(index, widget);\n }\n /**\n * Update the item position.\n *\n * @param i Item index\n * @param isHorizontal Whether the layout is horizontal or not\n * @param left Left position in pixels\n * @param top Top position in pixels\n * @param height Item height\n * @param width Item width\n * @param size Item size\n */\n updateItemPosition(i, isHorizontal, left, top, height, width, size) {\n const titleStyle = this._titles[i].style;\n // Titles must be rotated for horizontal accordion panel using CSS: see accordionpanel.css\n titleStyle.top = `${top}px`;\n titleStyle.left = `${left}px`;\n titleStyle.height = `${this.widgetOffset}px`;\n if (isHorizontal) {\n titleStyle.width = `${height}px`;\n }\n else {\n titleStyle.width = `${width}px`;\n }\n super.updateItemPosition(i, isHorizontal, left, top, height, width, size);\n }\n}\nvar Private$g;\n(function (Private) {\n /**\n * Create the title HTML element.\n *\n * @param renderer Accordion renderer\n * @param data Widget title\n * @returns Title HTML element\n */\n function createTitle(renderer, data, expanded = true) {\n const title = renderer.createSectionTitle(data);\n title.style.position = 'absolute';\n title.style.contain = 'strict';\n title.setAttribute('aria-label', `${data.label} Section`);\n title.setAttribute('aria-expanded', expanded ? 'true' : 'false');\n title.setAttribute('aria-controls', data.owner.id);\n if (expanded) {\n title.classList.add('lm-mod-expanded');\n }\n return title;\n }\n Private.createTitle = createTitle;\n})(Private$g || (Private$g = {}));\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * A simple and convenient panel widget class.\n *\n * #### Notes\n * This class is suitable as a base class for implementing a variety of\n * convenience panel widgets, but can also be used directly with CSS to\n * arrange a collection of widgets.\n *\n * This class provides a convenience wrapper around a {@link PanelLayout}.\n */\nclass Panel extends Widget {\n /**\n * Construct a new panel.\n *\n * @param options - The options for initializing the panel.\n */\n constructor(options = {}) {\n super();\n this.addClass('lm-Panel');\n this.layout = Private$f.createLayout(options);\n }\n /**\n * A read-only array of the widgets in the panel.\n */\n get widgets() {\n return this.layout.widgets;\n }\n /**\n * Add a widget to the end of the panel.\n *\n * @param widget - The widget to add to the panel.\n *\n * #### Notes\n * If the widget is already contained in the panel, it will be moved.\n */\n addWidget(widget) {\n this.layout.addWidget(widget);\n }\n /**\n * Insert a widget at the specified index.\n *\n * @param index - The index at which to insert the widget.\n *\n * @param widget - The widget to insert into to the panel.\n *\n * #### Notes\n * If the widget is already contained in the panel, it will be moved.\n */\n insertWidget(index, widget) {\n this.layout.insertWidget(index, widget);\n }\n}\n/**\n * The namespace for the module implementation details.\n */\nvar Private$f;\n(function (Private) {\n /**\n * Create a panel layout for the given panel options.\n */\n function createLayout(options) {\n return options.layout || new PanelLayout();\n }\n Private.createLayout = createLayout;\n})(Private$f || (Private$f = {}));\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * A panel which arranges its widgets into resizable sections.\n *\n * #### Notes\n * This class provides a convenience wrapper around a {@link SplitLayout}.\n */\nclass SplitPanel extends Panel {\n /**\n * Construct a new split panel.\n *\n * @param options - The options for initializing the split panel.\n */\n constructor(options = {}) {\n super({ layout: Private$e.createLayout(options) });\n this._handleMoved = new Signal(this);\n this._pressData = null;\n this.addClass('lm-SplitPanel');\n }\n /**\n * Dispose of the resources held by the panel.\n */\n dispose() {\n this._releaseMouse();\n super.dispose();\n }\n /**\n * Get the layout orientation for the split panel.\n */\n get orientation() {\n return this.layout.orientation;\n }\n /**\n * Set the layout orientation for the split panel.\n */\n set orientation(value) {\n this.layout.orientation = value;\n }\n /**\n * Get the content alignment for the split panel.\n *\n * #### Notes\n * This is the alignment of the widgets in the layout direction.\n *\n * The alignment has no effect if the widgets can expand to fill the\n * entire split panel.\n */\n get alignment() {\n return this.layout.alignment;\n }\n /**\n * Set the content alignment for the split panel.\n *\n * #### Notes\n * This is the alignment of the widgets in the layout direction.\n *\n * The alignment has no effect if the widgets can expand to fill the\n * entire split panel.\n */\n set alignment(value) {\n this.layout.alignment = value;\n }\n /**\n * Get the inter-element spacing for the split panel.\n */\n get spacing() {\n return this.layout.spacing;\n }\n /**\n * Set the inter-element spacing for the split panel.\n */\n set spacing(value) {\n this.layout.spacing = value;\n }\n /**\n * The renderer used by the split panel.\n */\n get renderer() {\n return this.layout.renderer;\n }\n /**\n * A signal emitted when a split handle has moved.\n */\n get handleMoved() {\n return this._handleMoved;\n }\n /**\n * A read-only array of the split handles in the panel.\n */\n get handles() {\n return this.layout.handles;\n }\n /**\n * Get the relative sizes of the widgets in the panel.\n *\n * @returns A new array of the relative sizes of the widgets.\n *\n * #### Notes\n * The returned sizes reflect the sizes of the widgets normalized\n * relative to their siblings.\n *\n * This method **does not** measure the DOM nodes.\n */\n relativeSizes() {\n return this.layout.relativeSizes();\n }\n /**\n * Set the relative sizes for the widgets in the panel.\n *\n * @param sizes - The relative sizes for the widgets in the panel.\n * @param update - Update the layout after setting relative sizes.\n * Default is True.\n *\n * #### Notes\n * Extra values are ignored, too few will yield an undefined layout.\n *\n * The actual geometry of the DOM nodes is updated asynchronously.\n */\n setRelativeSizes(sizes, update = true) {\n this.layout.setRelativeSizes(sizes, update);\n }\n /**\n * Handle the DOM events for the split panel.\n *\n * @param event - The DOM event sent to the panel.\n *\n * #### Notes\n * This method implements the DOM `EventListener` interface and is\n * called in response to events on the panel's DOM node. It should\n * not be called directly by user code.\n */\n handleEvent(event) {\n switch (event.type) {\n case 'pointerdown':\n this._evtPointerDown(event);\n break;\n case 'pointermove':\n this._evtPointerMove(event);\n break;\n case 'pointerup':\n this._evtPointerUp(event);\n break;\n case 'keydown':\n this._evtKeyDown(event);\n break;\n case 'contextmenu':\n event.preventDefault();\n event.stopPropagation();\n break;\n }\n }\n /**\n * A message handler invoked on a `'before-attach'` message.\n */\n onBeforeAttach(msg) {\n this.node.addEventListener('pointerdown', this);\n }\n /**\n * A message handler invoked on an `'after-detach'` message.\n */\n onAfterDetach(msg) {\n this.node.removeEventListener('pointerdown', this);\n this._releaseMouse();\n }\n /**\n * A message handler invoked on a `'child-added'` message.\n */\n onChildAdded(msg) {\n msg.child.addClass('lm-SplitPanel-child');\n this._releaseMouse();\n }\n /**\n * A message handler invoked on a `'child-removed'` message.\n */\n onChildRemoved(msg) {\n msg.child.removeClass('lm-SplitPanel-child');\n this._releaseMouse();\n }\n /**\n * Handle the `'keydown'` event for the split panel.\n */\n _evtKeyDown(event) {\n // Stop input events during drag.\n if (this._pressData) {\n event.preventDefault();\n event.stopPropagation();\n }\n // Release the mouse if `Escape` is pressed.\n if (event.keyCode === 27) {\n this._releaseMouse();\n }\n }\n /**\n * Handle the `'pointerdown'` event for the split panel.\n */\n _evtPointerDown(event) {\n // Do nothing if the primary button is not pressed.\n if (event.button !== 0) {\n return;\n }\n // Find the handle which contains the target, if any.\n let layout = this.layout;\n let index = ArrayExt.findFirstIndex(layout.handles, handle => {\n return handle.contains(event.target);\n });\n // Bail early if the mouse press was not on a handle.\n if (index === -1) {\n return;\n }\n // Stop the event when a split handle is pressed.\n event.preventDefault();\n event.stopPropagation();\n // Add the extra document listeners.\n document.addEventListener('pointerup', this, true);\n document.addEventListener('pointermove', this, true);\n document.addEventListener('keydown', this, true);\n document.addEventListener('contextmenu', this, true);\n // Compute the offset delta for the handle press.\n let delta;\n let handle = layout.handles[index];\n let rect = handle.getBoundingClientRect();\n if (layout.orientation === 'horizontal') {\n delta = event.clientX - rect.left;\n }\n else {\n delta = event.clientY - rect.top;\n }\n // Override the cursor and store the press data.\n let style = window.getComputedStyle(handle);\n let override = Drag.overrideCursor(style.cursor);\n this._pressData = { index, delta, override };\n }\n /**\n * Handle the `'pointermove'` event for the split panel.\n */\n _evtPointerMove(event) {\n // Stop the event when dragging a split handle.\n event.preventDefault();\n event.stopPropagation();\n // Compute the desired offset position for the handle.\n let pos;\n let layout = this.layout;\n let rect = this.node.getBoundingClientRect();\n if (layout.orientation === 'horizontal') {\n pos = event.clientX - rect.left - this._pressData.delta;\n }\n else {\n pos = event.clientY - rect.top - this._pressData.delta;\n }\n // Move the handle as close to the desired position as possible.\n layout.moveHandle(this._pressData.index, pos);\n }\n /**\n * Handle the `'pointerup'` event for the split panel.\n */\n _evtPointerUp(event) {\n // Do nothing if the primary button is not released.\n if (event.button !== 0) {\n return;\n }\n // Stop the event when releasing a handle.\n event.preventDefault();\n event.stopPropagation();\n // Finalize the mouse release.\n this._releaseMouse();\n }\n /**\n * Release the mouse grab for the split panel.\n */\n _releaseMouse() {\n // Bail early if no drag is in progress.\n if (!this._pressData) {\n return;\n }\n // Clear the override cursor.\n this._pressData.override.dispose();\n this._pressData = null;\n // Emit the handle moved signal.\n this._handleMoved.emit();\n // Remove the extra document listeners.\n document.removeEventListener('keydown', this, true);\n document.removeEventListener('pointerup', this, true);\n document.removeEventListener('pointermove', this, true);\n document.removeEventListener('contextmenu', this, true);\n }\n}\n/**\n * The namespace for the `SplitPanel` class statics.\n */\n(function (SplitPanel) {\n /**\n * The default implementation of `IRenderer`.\n */\n class Renderer {\n /**\n * Create a new handle for use with a split panel.\n *\n * @returns A new handle element for a split panel.\n */\n createHandle() {\n let handle = document.createElement('div');\n handle.className = 'lm-SplitPanel-handle';\n return handle;\n }\n }\n SplitPanel.Renderer = Renderer;\n /**\n * The default `Renderer` instance.\n */\n SplitPanel.defaultRenderer = new Renderer();\n /**\n * Get the split panel stretch factor for the given widget.\n *\n * @param widget - The widget of interest.\n *\n * @returns The split panel stretch factor for the widget.\n */\n function getStretch(widget) {\n return SplitLayout.getStretch(widget);\n }\n SplitPanel.getStretch = getStretch;\n /**\n * Set the split panel stretch factor for the given widget.\n *\n * @param widget - The widget of interest.\n *\n * @param value - The value for the stretch factor.\n */\n function setStretch(widget, value) {\n SplitLayout.setStretch(widget, value);\n }\n SplitPanel.setStretch = setStretch;\n})(SplitPanel || (SplitPanel = {}));\n/**\n * The namespace for the module implementation details.\n */\nvar Private$e;\n(function (Private) {\n /**\n * Create a split layout for the given panel options.\n */\n function createLayout(options) {\n return (options.layout ||\n new SplitLayout({\n renderer: options.renderer || SplitPanel.defaultRenderer,\n orientation: options.orientation,\n alignment: options.alignment,\n spacing: options.spacing\n }));\n }\n Private.createLayout = createLayout;\n})(Private$e || (Private$e = {}));\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/**\n * A panel which arranges its widgets into resizable sections separated by a title widget.\n *\n * #### Notes\n * This class provides a convenience wrapper around {@link AccordionLayout}.\n */\nclass AccordionPanel extends SplitPanel {\n /**\n * Construct a new accordion panel.\n *\n * @param options - The options for initializing the accordion panel.\n */\n constructor(options = {}) {\n super({ ...options, layout: Private$d.createLayout(options) });\n this._widgetSizesCache = new WeakMap();\n this._expansionToggled = new Signal(this);\n this.addClass('lm-AccordionPanel');\n }\n /**\n * The renderer used by the accordion panel.\n */\n get renderer() {\n return this.layout.renderer;\n }\n /**\n * The section title space.\n *\n * This is the height if the panel is vertical and the width if it is\n * horizontal.\n */\n get titleSpace() {\n return this.layout.titleSpace;\n }\n set titleSpace(value) {\n this.layout.titleSpace = value;\n }\n /**\n * A read-only array of the section titles in the panel.\n */\n get titles() {\n return this.layout.titles;\n }\n /**\n * A signal emitted when a widget of the AccordionPanel is collapsed or expanded.\n */\n get expansionToggled() {\n return this._expansionToggled;\n }\n /**\n * Add a widget to the end of the panel.\n *\n * @param widget - The widget to add to the panel.\n *\n * #### Notes\n * If the widget is already contained in the panel, it will be moved.\n */\n addWidget(widget) {\n super.addWidget(widget);\n widget.title.changed.connect(this._onTitleChanged, this);\n }\n /**\n * Collapse the widget at position `index`.\n *\n * #### Notes\n * If no widget is found for `index`, this will bail.\n *\n * @param index Widget index\n */\n collapse(index) {\n const widget = this.layout.widgets[index];\n if (widget && !widget.isHidden) {\n this._toggleExpansion(index);\n }\n }\n /**\n * Expand the widget at position `index`.\n *\n * #### Notes\n * If no widget is found for `index`, this will bail.\n *\n * @param index Widget index\n */\n expand(index) {\n const widget = this.layout.widgets[index];\n if (widget && widget.isHidden) {\n this._toggleExpansion(index);\n }\n }\n /**\n * Insert a widget at the specified index.\n *\n * @param index - The index at which to insert the widget.\n *\n * @param widget - The widget to insert into to the panel.\n *\n * #### Notes\n * If the widget is already contained in the panel, it will be moved.\n */\n insertWidget(index, widget) {\n super.insertWidget(index, widget);\n widget.title.changed.connect(this._onTitleChanged, this);\n }\n /**\n * Handle the DOM events for the accordion panel.\n *\n * @param event - The DOM event sent to the panel.\n *\n * #### Notes\n * This method implements the DOM `EventListener` interface and is\n * called in response to events on the panel's DOM node. It should\n * not be called directly by user code.\n */\n handleEvent(event) {\n super.handleEvent(event);\n switch (event.type) {\n case 'click':\n this._evtClick(event);\n break;\n case 'keydown':\n this._eventKeyDown(event);\n break;\n }\n }\n /**\n * A message handler invoked on a `'before-attach'` message.\n */\n onBeforeAttach(msg) {\n this.node.addEventListener('click', this);\n this.node.addEventListener('keydown', this);\n super.onBeforeAttach(msg);\n }\n /**\n * A message handler invoked on an `'after-detach'` message.\n */\n onAfterDetach(msg) {\n super.onAfterDetach(msg);\n this.node.removeEventListener('click', this);\n this.node.removeEventListener('keydown', this);\n }\n /**\n * Handle the `changed` signal of a title object.\n */\n _onTitleChanged(sender) {\n const index = ArrayExt.findFirstIndex(this.widgets, widget => {\n return widget.contains(sender.owner);\n });\n if (index >= 0) {\n this.layout.updateTitle(index, sender.owner);\n this.update();\n }\n }\n /**\n * Compute the size of widgets in this panel on the title click event.\n * On closing, the size of the widget is cached and we will try to expand\n * the last opened widget.\n * On opening, we will use the cached size if it is available to restore the\n * widget.\n * In both cases, if we can not compute the size of widgets, we will let\n * `SplitLayout` decide.\n *\n * @param index - The index of widget to be opened of closed\n *\n * @returns Relative size of widgets in this panel, if this size can\n * not be computed, return `undefined`\n */\n _computeWidgetSize(index) {\n const layout = this.layout;\n const widget = layout.widgets[index];\n if (!widget) {\n return undefined;\n }\n const isHidden = widget.isHidden;\n const widgetSizes = layout.absoluteSizes();\n const delta = (isHidden ? -1 : 1) * this.spacing;\n const totalSize = widgetSizes.reduce((prev, curr) => prev + curr);\n let newSize = [...widgetSizes];\n if (!isHidden) {\n // Hide the widget\n const currentSize = widgetSizes[index];\n this._widgetSizesCache.set(widget, currentSize);\n newSize[index] = 0;\n const widgetToCollapse = newSize.map(sz => sz > 0).lastIndexOf(true);\n if (widgetToCollapse === -1) {\n // All widget are closed, let the `SplitLayout` compute widget sizes.\n return undefined;\n }\n newSize[widgetToCollapse] =\n widgetSizes[widgetToCollapse] + currentSize + delta;\n }\n else {\n // Show the widget\n const previousSize = this._widgetSizesCache.get(widget);\n if (!previousSize) {\n // Previous size is unavailable, let the `SplitLayout` compute widget sizes.\n return undefined;\n }\n newSize[index] += previousSize;\n const widgetToCollapse = newSize\n .map(sz => sz - previousSize > 0)\n .lastIndexOf(true);\n if (widgetToCollapse === -1) {\n // Can not reduce the size of one widget, reduce all opened widgets\n // proportionally with its size.\n newSize.forEach((_, idx) => {\n if (idx !== index) {\n newSize[idx] -=\n (widgetSizes[idx] / totalSize) * (previousSize - delta);\n }\n });\n }\n else {\n newSize[widgetToCollapse] -= previousSize - delta;\n }\n }\n return newSize.map(sz => sz / (totalSize + delta));\n }\n /**\n * Handle the `'click'` event for the accordion panel\n */\n _evtClick(event) {\n const target = event.target;\n if (target) {\n const index = ArrayExt.findFirstIndex(this.titles, title => {\n return title.contains(target);\n });\n if (index >= 0) {\n event.preventDefault();\n event.stopPropagation();\n this._toggleExpansion(index);\n }\n }\n }\n /**\n * Handle the `'keydown'` event for the accordion panel.\n */\n _eventKeyDown(event) {\n if (event.defaultPrevented) {\n return;\n }\n const target = event.target;\n let handled = false;\n if (target) {\n const index = ArrayExt.findFirstIndex(this.titles, title => {\n return title.contains(target);\n });\n if (index >= 0) {\n const keyCode = event.keyCode.toString();\n // If Space or Enter is pressed on title, emulate click event\n if (event.key.match(/Space|Enter/) || keyCode.match(/13|32/)) {\n target.click();\n handled = true;\n }\n else if (this.orientation === 'horizontal'\n ? event.key.match(/ArrowLeft|ArrowRight/) || keyCode.match(/37|39/)\n : event.key.match(/ArrowUp|ArrowDown/) || keyCode.match(/38|40/)) {\n // If Up or Down (for vertical) / Left or Right (for horizontal) is pressed on title, loop on titles\n const direction = event.key.match(/ArrowLeft|ArrowUp/) || keyCode.match(/37|38/)\n ? -1\n : 1;\n const length = this.titles.length;\n const newIndex = (index + length + direction) % length;\n this.titles[newIndex].focus();\n handled = true;\n }\n else if (event.key === 'End' || keyCode === '35') {\n // If End is pressed on title, focus on the last title\n this.titles[this.titles.length - 1].focus();\n handled = true;\n }\n else if (event.key === 'Home' || keyCode === '36') {\n // If Home is pressed on title, focus on the first title\n this.titles[0].focus();\n handled = true;\n }\n }\n if (handled) {\n event.preventDefault();\n }\n }\n }\n _toggleExpansion(index) {\n const title = this.titles[index];\n const widget = this.layout.widgets[index];\n const newSize = this._computeWidgetSize(index);\n if (newSize) {\n this.setRelativeSizes(newSize, false);\n }\n if (widget.isHidden) {\n title.classList.add('lm-mod-expanded');\n title.setAttribute('aria-expanded', 'true');\n widget.show();\n }\n else {\n title.classList.remove('lm-mod-expanded');\n title.setAttribute('aria-expanded', 'false');\n widget.hide();\n }\n // Emit the expansion state signal.\n this._expansionToggled.emit(index);\n }\n}\n/**\n * The namespace for the `AccordionPanel` class statics.\n */\n(function (AccordionPanel) {\n /**\n * The default implementation of `IRenderer`.\n */\n class Renderer extends SplitPanel.Renderer {\n constructor() {\n super();\n /**\n * A selector which matches any title node in the accordion.\n */\n this.titleClassName = 'lm-AccordionPanel-title';\n this._titleID = 0;\n this._titleKeys = new WeakMap();\n this._uuid = ++Renderer._nInstance;\n }\n /**\n * Render the collapse indicator for a section title.\n *\n * @param data - The data to use for rendering the section title.\n *\n * @returns A element representing the collapse indicator.\n */\n createCollapseIcon(data) {\n return document.createElement('span');\n }\n /**\n * Render the element for a section title.\n *\n * @param data - The data to use for rendering the section title.\n *\n * @returns A element representing the section title.\n */\n createSectionTitle(data) {\n const handle = document.createElement('h3');\n handle.setAttribute('tabindex', '0');\n handle.id = this.createTitleKey(data);\n handle.className = this.titleClassName;\n for (const aData in data.dataset) {\n handle.dataset[aData] = data.dataset[aData];\n }\n const collapser = handle.appendChild(this.createCollapseIcon(data));\n collapser.className = 'lm-AccordionPanel-titleCollapser';\n const label = handle.appendChild(document.createElement('span'));\n label.className = 'lm-AccordionPanel-titleLabel';\n label.textContent = data.label;\n label.title = data.caption || data.label;\n return handle;\n }\n /**\n * Create a unique render key for the title.\n *\n * @param data - The data to use for the title.\n *\n * @returns The unique render key for the title.\n *\n * #### Notes\n * This method caches the key against the section title the first time\n * the key is generated.\n */\n createTitleKey(data) {\n let key = this._titleKeys.get(data);\n if (key === undefined) {\n key = `title-key-${this._uuid}-${this._titleID++}`;\n this._titleKeys.set(data, key);\n }\n return key;\n }\n }\n Renderer._nInstance = 0;\n AccordionPanel.Renderer = Renderer;\n /**\n * The default `Renderer` instance.\n */\n AccordionPanel.defaultRenderer = new Renderer();\n})(AccordionPanel || (AccordionPanel = {}));\nvar Private$d;\n(function (Private) {\n /**\n * Create an accordion layout for the given panel options.\n *\n * @param options Panel options\n * @returns Panel layout\n */\n function createLayout(options) {\n return (options.layout ||\n new AccordionLayout({\n renderer: options.renderer || AccordionPanel.defaultRenderer,\n orientation: options.orientation,\n alignment: options.alignment,\n spacing: options.spacing,\n titleSpace: options.titleSpace\n }));\n }\n Private.createLayout = createLayout;\n})(Private$d || (Private$d = {}));\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * A layout which arranges its widgets in a single row or column.\n */\nclass BoxLayout extends PanelLayout {\n /**\n * Construct a new box layout.\n *\n * @param options - The options for initializing the layout.\n */\n constructor(options = {}) {\n super();\n this._fixed = 0;\n this._spacing = 4;\n this._dirty = false;\n this._sizers = [];\n this._items = [];\n this._box = null;\n this._alignment = 'start';\n this._direction = 'top-to-bottom';\n if (options.direction !== undefined) {\n this._direction = options.direction;\n }\n if (options.alignment !== undefined) {\n this._alignment = options.alignment;\n }\n if (options.spacing !== undefined) {\n this._spacing = Utils$1.clampDimension(options.spacing);\n }\n }\n /**\n * Dispose of the resources held by the layout.\n */\n dispose() {\n // Dispose of the layout items.\n for (const item of this._items) {\n item.dispose();\n }\n // Clear the layout state.\n this._box = null;\n this._items.length = 0;\n this._sizers.length = 0;\n // Dispose of the rest of the layout.\n super.dispose();\n }\n /**\n * Get the layout direction for the box layout.\n */\n get direction() {\n return this._direction;\n }\n /**\n * Set the layout direction for the box layout.\n */\n set direction(value) {\n if (this._direction === value) {\n return;\n }\n this._direction = value;\n if (!this.parent) {\n return;\n }\n this.parent.dataset['direction'] = value;\n this.parent.fit();\n }\n /**\n * Get the content alignment for the box layout.\n *\n * #### Notes\n * This is the alignment of the widgets in the layout direction.\n *\n * The alignment has no effect if the widgets can expand to fill the\n * entire box layout.\n */\n get alignment() {\n return this._alignment;\n }\n /**\n * Set the content alignment for the box layout.\n *\n * #### Notes\n * This is the alignment of the widgets in the layout direction.\n *\n * The alignment has no effect if the widgets can expand to fill the\n * entire box layout.\n */\n set alignment(value) {\n if (this._alignment === value) {\n return;\n }\n this._alignment = value;\n if (!this.parent) {\n return;\n }\n this.parent.dataset['alignment'] = value;\n this.parent.update();\n }\n /**\n * Get the inter-element spacing for the box layout.\n */\n get spacing() {\n return this._spacing;\n }\n /**\n * Set the inter-element spacing for the box layout.\n */\n set spacing(value) {\n value = Utils$1.clampDimension(value);\n if (this._spacing === value) {\n return;\n }\n this._spacing = value;\n if (!this.parent) {\n return;\n }\n this.parent.fit();\n }\n /**\n * Perform layout initialization which requires the parent widget.\n */\n init() {\n this.parent.dataset['direction'] = this.direction;\n this.parent.dataset['alignment'] = this.alignment;\n super.init();\n }\n /**\n * Attach a widget to the parent's DOM node.\n *\n * @param index - The current index of the widget in the layout.\n *\n * @param widget - The widget to attach to the parent.\n *\n * #### Notes\n * This is a reimplementation of the superclass method.\n */\n attachWidget(index, widget) {\n // Create and add a new layout item for the widget.\n ArrayExt.insert(this._items, index, new LayoutItem(widget));\n // Create and add a new sizer for the widget.\n ArrayExt.insert(this._sizers, index, new BoxSizer());\n // Send a `'before-attach'` message if the parent is attached.\n if (this.parent.isAttached) {\n MessageLoop.sendMessage(widget, Widget.Msg.BeforeAttach);\n }\n // Add the widget's node to the parent.\n this.parent.node.appendChild(widget.node);\n // Send an `'after-attach'` message if the parent is attached.\n if (this.parent.isAttached) {\n MessageLoop.sendMessage(widget, Widget.Msg.AfterAttach);\n }\n // Post a fit request for the parent widget.\n this.parent.fit();\n }\n /**\n * Move a widget in the parent's DOM node.\n *\n * @param fromIndex - The previous index of the widget in the layout.\n *\n * @param toIndex - The current index of the widget in the layout.\n *\n * @param widget - The widget to move in the parent.\n *\n * #### Notes\n * This is a reimplementation of the superclass method.\n */\n moveWidget(fromIndex, toIndex, widget) {\n // Move the layout item for the widget.\n ArrayExt.move(this._items, fromIndex, toIndex);\n // Move the sizer for the widget.\n ArrayExt.move(this._sizers, fromIndex, toIndex);\n // Post an update request for the parent widget.\n this.parent.update();\n }\n /**\n * Detach a widget from the parent's DOM node.\n *\n * @param index - The previous index of the widget in the layout.\n *\n * @param widget - The widget to detach from the parent.\n *\n * #### Notes\n * This is a reimplementation of the superclass method.\n */\n detachWidget(index, widget) {\n // Remove the layout item for the widget.\n let item = ArrayExt.removeAt(this._items, index);\n // Remove the sizer for the widget.\n ArrayExt.removeAt(this._sizers, index);\n // Send a `'before-detach'` message if the parent is attached.\n if (this.parent.isAttached) {\n MessageLoop.sendMessage(widget, Widget.Msg.BeforeDetach);\n }\n // Remove the widget's node from the parent.\n this.parent.node.removeChild(widget.node);\n // Send an `'after-detach'` message if the parent is attached.\n if (this.parent.isAttached) {\n MessageLoop.sendMessage(widget, Widget.Msg.AfterDetach);\n }\n // Dispose of the layout item.\n item.dispose();\n // Post a fit request for the parent widget.\n this.parent.fit();\n }\n /**\n * A message handler invoked on a `'before-show'` message.\n */\n onBeforeShow(msg) {\n super.onBeforeShow(msg);\n this.parent.update();\n }\n /**\n * A message handler invoked on a `'before-attach'` message.\n */\n onBeforeAttach(msg) {\n super.onBeforeAttach(msg);\n this.parent.fit();\n }\n /**\n * A message handler invoked on a `'child-shown'` message.\n */\n onChildShown(msg) {\n this.parent.fit();\n }\n /**\n * A message handler invoked on a `'child-hidden'` message.\n */\n onChildHidden(msg) {\n this.parent.fit();\n }\n /**\n * A message handler invoked on a `'resize'` message.\n */\n onResize(msg) {\n if (this.parent.isVisible) {\n this._update(msg.width, msg.height);\n }\n }\n /**\n * A message handler invoked on an `'update-request'` message.\n */\n onUpdateRequest(msg) {\n if (this.parent.isVisible) {\n this._update(-1, -1);\n }\n }\n /**\n * A message handler invoked on a `'fit-request'` message.\n */\n onFitRequest(msg) {\n if (this.parent.isAttached) {\n this._fit();\n }\n }\n /**\n * Fit the layout to the total size required by the widgets.\n */\n _fit() {\n // Compute the visible item count.\n let nVisible = 0;\n for (let i = 0, n = this._items.length; i < n; ++i) {\n nVisible += +!this._items[i].isHidden;\n }\n // Update the fixed space for the visible items.\n this._fixed = this._spacing * Math.max(0, nVisible - 1);\n // Setup the computed minimum size.\n let horz = Private$c.isHorizontal(this._direction);\n let minW = horz ? this._fixed : 0;\n let minH = horz ? 0 : this._fixed;\n // Update the sizers and computed minimum size.\n for (let i = 0, n = this._items.length; i < n; ++i) {\n // Fetch the item and corresponding box sizer.\n let item = this._items[i];\n let sizer = this._sizers[i];\n // If the item is hidden, it should consume zero size.\n if (item.isHidden) {\n sizer.minSize = 0;\n sizer.maxSize = 0;\n continue;\n }\n // Update the size limits for the item.\n item.fit();\n // Update the size basis and stretch factor.\n sizer.sizeHint = BoxLayout.getSizeBasis(item.widget);\n sizer.stretch = BoxLayout.getStretch(item.widget);\n // Update the sizer limits and computed min size.\n if (horz) {\n sizer.minSize = item.minWidth;\n sizer.maxSize = item.maxWidth;\n minW += item.minWidth;\n minH = Math.max(minH, item.minHeight);\n }\n else {\n sizer.minSize = item.minHeight;\n sizer.maxSize = item.maxHeight;\n minH += item.minHeight;\n minW = Math.max(minW, item.minWidth);\n }\n }\n // Update the box sizing and add it to the computed min size.\n let box = (this._box = ElementExt.boxSizing(this.parent.node));\n minW += box.horizontalSum;\n minH += box.verticalSum;\n // Update the parent's min size constraints.\n let style = this.parent.node.style;\n style.minWidth = `${minW}px`;\n style.minHeight = `${minH}px`;\n // Set the dirty flag to ensure only a single update occurs.\n this._dirty = true;\n // Notify the ancestor that it should fit immediately. This may\n // cause a resize of the parent, fulfilling the required update.\n if (this.parent.parent) {\n MessageLoop.sendMessage(this.parent.parent, Widget.Msg.FitRequest);\n }\n // If the dirty flag is still set, the parent was not resized.\n // Trigger the required update on the parent widget immediately.\n if (this._dirty) {\n MessageLoop.sendMessage(this.parent, Widget.Msg.UpdateRequest);\n }\n }\n /**\n * Update the layout position and size of the widgets.\n *\n * The parent offset dimensions should be `-1` if unknown.\n */\n _update(offsetWidth, offsetHeight) {\n // Clear the dirty flag to indicate the update occurred.\n this._dirty = false;\n // Compute the visible item count.\n let nVisible = 0;\n for (let i = 0, n = this._items.length; i < n; ++i) {\n nVisible += +!this._items[i].isHidden;\n }\n // Bail early if there are no visible items to layout.\n if (nVisible === 0) {\n return;\n }\n // Measure the parent if the offset dimensions are unknown.\n if (offsetWidth < 0) {\n offsetWidth = this.parent.node.offsetWidth;\n }\n if (offsetHeight < 0) {\n offsetHeight = this.parent.node.offsetHeight;\n }\n // Ensure the parent box sizing data is computed.\n if (!this._box) {\n this._box = ElementExt.boxSizing(this.parent.node);\n }\n // Compute the layout area adjusted for border and padding.\n let top = this._box.paddingTop;\n let left = this._box.paddingLeft;\n let width = offsetWidth - this._box.horizontalSum;\n let height = offsetHeight - this._box.verticalSum;\n // Distribute the layout space and adjust the start position.\n let delta;\n switch (this._direction) {\n case 'left-to-right':\n delta = BoxEngine.calc(this._sizers, Math.max(0, width - this._fixed));\n break;\n case 'top-to-bottom':\n delta = BoxEngine.calc(this._sizers, Math.max(0, height - this._fixed));\n break;\n case 'right-to-left':\n delta = BoxEngine.calc(this._sizers, Math.max(0, width - this._fixed));\n left += width;\n break;\n case 'bottom-to-top':\n delta = BoxEngine.calc(this._sizers, Math.max(0, height - this._fixed));\n top += height;\n break;\n default:\n throw 'unreachable';\n }\n // Setup the variables for justification and alignment offset.\n let extra = 0;\n let offset = 0;\n // Account for alignment if there is extra layout space.\n if (delta > 0) {\n switch (this._alignment) {\n case 'start':\n break;\n case 'center':\n extra = 0;\n offset = delta / 2;\n break;\n case 'end':\n extra = 0;\n offset = delta;\n break;\n case 'justify':\n extra = delta / nVisible;\n offset = 0;\n break;\n default:\n throw 'unreachable';\n }\n }\n // Layout the items using the computed box sizes.\n for (let i = 0, n = this._items.length; i < n; ++i) {\n // Fetch the item.\n let item = this._items[i];\n // Ignore hidden items.\n if (item.isHidden) {\n continue;\n }\n // Fetch the computed size for the widget.\n let size = this._sizers[i].size;\n // Update the widget geometry and advance the relevant edge.\n switch (this._direction) {\n case 'left-to-right':\n item.update(left + offset, top, size + extra, height);\n left += size + extra + this._spacing;\n break;\n case 'top-to-bottom':\n item.update(left, top + offset, width, size + extra);\n top += size + extra + this._spacing;\n break;\n case 'right-to-left':\n item.update(left - offset - size - extra, top, size + extra, height);\n left -= size + extra + this._spacing;\n break;\n case 'bottom-to-top':\n item.update(left, top - offset - size - extra, width, size + extra);\n top -= size + extra + this._spacing;\n break;\n default:\n throw 'unreachable';\n }\n }\n }\n}\n/**\n * The namespace for the `BoxLayout` class statics.\n */\n(function (BoxLayout) {\n /**\n * Get the box layout stretch factor for the given widget.\n *\n * @param widget - The widget of interest.\n *\n * @returns The box layout stretch factor for the widget.\n */\n function getStretch(widget) {\n return Private$c.stretchProperty.get(widget);\n }\n BoxLayout.getStretch = getStretch;\n /**\n * Set the box layout stretch factor for the given widget.\n *\n * @param widget - The widget of interest.\n *\n * @param value - The value for the stretch factor.\n */\n function setStretch(widget, value) {\n Private$c.stretchProperty.set(widget, value);\n }\n BoxLayout.setStretch = setStretch;\n /**\n * Get the box layout size basis for the given widget.\n *\n * @param widget - The widget of interest.\n *\n * @returns The box layout size basis for the widget.\n */\n function getSizeBasis(widget) {\n return Private$c.sizeBasisProperty.get(widget);\n }\n BoxLayout.getSizeBasis = getSizeBasis;\n /**\n * Set the box layout size basis for the given widget.\n *\n * @param widget - The widget of interest.\n *\n * @param value - The value for the size basis.\n */\n function setSizeBasis(widget, value) {\n Private$c.sizeBasisProperty.set(widget, value);\n }\n BoxLayout.setSizeBasis = setSizeBasis;\n})(BoxLayout || (BoxLayout = {}));\n/**\n * The namespace for the module implementation details.\n */\nvar Private$c;\n(function (Private) {\n /**\n * The property descriptor for a widget stretch factor.\n */\n Private.stretchProperty = new AttachedProperty({\n name: 'stretch',\n create: () => 0,\n coerce: (owner, value) => Math.max(0, Math.floor(value)),\n changed: onChildSizingChanged\n });\n /**\n * The property descriptor for a widget size basis.\n */\n Private.sizeBasisProperty = new AttachedProperty({\n name: 'sizeBasis',\n create: () => 0,\n coerce: (owner, value) => Math.max(0, Math.floor(value)),\n changed: onChildSizingChanged\n });\n /**\n * Test whether a direction has horizontal orientation.\n */\n function isHorizontal(dir) {\n return dir === 'left-to-right' || dir === 'right-to-left';\n }\n Private.isHorizontal = isHorizontal;\n /**\n * Clamp a spacing value to an integer >= 0.\n */\n function clampSpacing(value) {\n return Math.max(0, Math.floor(value));\n }\n Private.clampSpacing = clampSpacing;\n /**\n * The change handler for the attached sizing properties.\n */\n function onChildSizingChanged(child) {\n if (child.parent && child.parent.layout instanceof BoxLayout) {\n child.parent.fit();\n }\n }\n})(Private$c || (Private$c = {}));\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * A panel which arranges its widgets in a single row or column.\n *\n * #### Notes\n * This class provides a convenience wrapper around a {@link BoxLayout}.\n */\nclass BoxPanel extends Panel {\n /**\n * Construct a new box panel.\n *\n * @param options - The options for initializing the box panel.\n */\n constructor(options = {}) {\n super({ layout: Private$b.createLayout(options) });\n this.addClass('lm-BoxPanel');\n }\n /**\n * Get the layout direction for the box panel.\n */\n get direction() {\n return this.layout.direction;\n }\n /**\n * Set the layout direction for the box panel.\n */\n set direction(value) {\n this.layout.direction = value;\n }\n /**\n * Get the content alignment for the box panel.\n *\n * #### Notes\n * This is the alignment of the widgets in the layout direction.\n *\n * The alignment has no effect if the widgets can expand to fill the\n * entire box layout.\n */\n get alignment() {\n return this.layout.alignment;\n }\n /**\n * Set the content alignment for the box panel.\n *\n * #### Notes\n * This is the alignment of the widgets in the layout direction.\n *\n * The alignment has no effect if the widgets can expand to fill the\n * entire box layout.\n */\n set alignment(value) {\n this.layout.alignment = value;\n }\n /**\n * Get the inter-element spacing for the box panel.\n */\n get spacing() {\n return this.layout.spacing;\n }\n /**\n * Set the inter-element spacing for the box panel.\n */\n set spacing(value) {\n this.layout.spacing = value;\n }\n /**\n * A message handler invoked on a `'child-added'` message.\n */\n onChildAdded(msg) {\n msg.child.addClass('lm-BoxPanel-child');\n }\n /**\n * A message handler invoked on a `'child-removed'` message.\n */\n onChildRemoved(msg) {\n msg.child.removeClass('lm-BoxPanel-child');\n }\n}\n/**\n * The namespace for the `BoxPanel` class statics.\n */\n(function (BoxPanel) {\n /**\n * Get the box panel stretch factor for the given widget.\n *\n * @param widget - The widget of interest.\n *\n * @returns The box panel stretch factor for the widget.\n */\n function getStretch(widget) {\n return BoxLayout.getStretch(widget);\n }\n BoxPanel.getStretch = getStretch;\n /**\n * Set the box panel stretch factor for the given widget.\n *\n * @param widget - The widget of interest.\n *\n * @param value - The value for the stretch factor.\n */\n function setStretch(widget, value) {\n BoxLayout.setStretch(widget, value);\n }\n BoxPanel.setStretch = setStretch;\n /**\n * Get the box panel size basis for the given widget.\n *\n * @param widget - The widget of interest.\n *\n * @returns The box panel size basis for the widget.\n */\n function getSizeBasis(widget) {\n return BoxLayout.getSizeBasis(widget);\n }\n BoxPanel.getSizeBasis = getSizeBasis;\n /**\n * Set the box panel size basis for the given widget.\n *\n * @param widget - The widget of interest.\n *\n * @param value - The value for the size basis.\n */\n function setSizeBasis(widget, value) {\n BoxLayout.setSizeBasis(widget, value);\n }\n BoxPanel.setSizeBasis = setSizeBasis;\n})(BoxPanel || (BoxPanel = {}));\n/**\n * The namespace for the module implementation details.\n */\nvar Private$b;\n(function (Private) {\n /**\n * Create a box layout for the given panel options.\n */\n function createLayout(options) {\n return options.layout || new BoxLayout(options);\n }\n Private.createLayout = createLayout;\n})(Private$b || (Private$b = {}));\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * A widget which displays command items as a searchable palette.\n */\nclass CommandPalette extends Widget {\n /**\n * Construct a new command palette.\n *\n * @param options - The options for initializing the palette.\n */\n constructor(options) {\n super({ node: Private$a.createNode() });\n this._activeIndex = -1;\n this._items = [];\n this._results = null;\n this.addClass('lm-CommandPalette');\n this.setFlag(Widget.Flag.DisallowLayout);\n this.commands = options.commands;\n this.renderer = options.renderer || CommandPalette.defaultRenderer;\n this.commands.commandChanged.connect(this._onGenericChange, this);\n this.commands.keyBindingChanged.connect(this._onGenericChange, this);\n }\n /**\n * Dispose of the resources held by the widget.\n */\n dispose() {\n this._items.length = 0;\n this._results = null;\n super.dispose();\n }\n /**\n * The command palette search node.\n *\n * #### Notes\n * This is the node which contains the search-related elements.\n */\n get searchNode() {\n return this.node.getElementsByClassName('lm-CommandPalette-search')[0];\n }\n /**\n * The command palette input node.\n *\n * #### Notes\n * This is the actual input node for the search area.\n */\n get inputNode() {\n return this.node.getElementsByClassName('lm-CommandPalette-input')[0];\n }\n /**\n * The command palette content node.\n *\n * #### Notes\n * This is the node which holds the command item nodes.\n *\n * Modifying this node directly can lead to undefined behavior.\n */\n get contentNode() {\n return this.node.getElementsByClassName('lm-CommandPalette-content')[0];\n }\n /**\n * A read-only array of the command items in the palette.\n */\n get items() {\n return this._items;\n }\n /**\n * Add a command item to the command palette.\n *\n * @param options - The options for creating the command item.\n *\n * @returns The command item added to the palette.\n */\n addItem(options) {\n // Create a new command item for the options.\n let item = Private$a.createItem(this.commands, options);\n // Add the item to the array.\n this._items.push(item);\n // Refresh the search results.\n this.refresh();\n // Return the item added to the palette.\n return item;\n }\n /**\n * Adds command items to the command palette.\n *\n * @param items - An array of options for creating each command item.\n *\n * @returns The command items added to the palette.\n */\n addItems(items) {\n const newItems = items.map(item => Private$a.createItem(this.commands, item));\n newItems.forEach(item => this._items.push(item));\n this.refresh();\n return newItems;\n }\n /**\n * Remove an item from the command palette.\n *\n * @param item - The item to remove from the palette.\n *\n * #### Notes\n * This is a no-op if the item is not in the palette.\n */\n removeItem(item) {\n this.removeItemAt(this._items.indexOf(item));\n }\n /**\n * Remove the item at a given index from the command palette.\n *\n * @param index - The index of the item to remove.\n *\n * #### Notes\n * This is a no-op if the index is out of range.\n */\n removeItemAt(index) {\n // Remove the item from the array.\n let item = ArrayExt.removeAt(this._items, index);\n // Bail if the index is out of range.\n if (!item) {\n return;\n }\n // Refresh the search results.\n this.refresh();\n }\n /**\n * Remove all items from the command palette.\n */\n clearItems() {\n // Bail if there is nothing to remove.\n if (this._items.length === 0) {\n return;\n }\n // Clear the array of items.\n this._items.length = 0;\n // Refresh the search results.\n this.refresh();\n }\n /**\n * Clear the search results and schedule an update.\n *\n * #### Notes\n * This should be called whenever the search results of the palette\n * should be updated.\n *\n * This is typically called automatically by the palette as needed,\n * but can be called manually if the input text is programatically\n * changed.\n *\n * The rendered results are updated asynchronously.\n */\n refresh() {\n this._results = null;\n if (this.inputNode.value !== '') {\n let clear = this.node.getElementsByClassName('lm-close-icon')[0];\n clear.style.display = 'inherit';\n }\n else {\n let clear = this.node.getElementsByClassName('lm-close-icon')[0];\n clear.style.display = 'none';\n }\n this.update();\n }\n /**\n * Handle the DOM events for the command palette.\n *\n * @param event - The DOM event sent to the command palette.\n *\n * #### Notes\n * This method implements the DOM `EventListener` interface and is\n * called in response to events on the command palette's DOM node.\n * It should not be called directly by user code.\n */\n handleEvent(event) {\n switch (event.type) {\n case 'click':\n this._evtClick(event);\n break;\n case 'keydown':\n this._evtKeyDown(event);\n break;\n case 'input':\n this.refresh();\n break;\n case 'focus':\n case 'blur':\n this._toggleFocused();\n break;\n }\n }\n /**\n * A message handler invoked on a `'before-attach'` message.\n */\n onBeforeAttach(msg) {\n this.node.addEventListener('click', this);\n this.node.addEventListener('keydown', this);\n this.node.addEventListener('input', this);\n this.node.addEventListener('focus', this, true);\n this.node.addEventListener('blur', this, true);\n }\n /**\n * A message handler invoked on an `'after-detach'` message.\n */\n onAfterDetach(msg) {\n this.node.removeEventListener('click', this);\n this.node.removeEventListener('keydown', this);\n this.node.removeEventListener('input', this);\n this.node.removeEventListener('focus', this, true);\n this.node.removeEventListener('blur', this, true);\n }\n /**\n * A message handler invoked on an `'after-show'` message.\n */\n onAfterShow(msg) {\n this.update();\n super.onAfterShow(msg);\n }\n /**\n * A message handler invoked on an `'activate-request'` message.\n */\n onActivateRequest(msg) {\n if (this.isAttached) {\n let input = this.inputNode;\n input.focus();\n input.select();\n }\n }\n /**\n * A message handler invoked on an `'update-request'` message.\n */\n onUpdateRequest(msg) {\n if (this.isHidden) {\n return;\n }\n // Fetch the current query text and content node.\n let query = this.inputNode.value;\n let contentNode = this.contentNode;\n // Ensure the search results are generated.\n let results = this._results;\n if (!results) {\n // Generate and store the new search results.\n results = this._results = Private$a.search(this._items, query);\n // Reset the active index.\n this._activeIndex = query\n ? ArrayExt.findFirstIndex(results, Private$a.canActivate)\n : -1;\n }\n // If there is no query and no results, clear the content.\n if (!query && results.length === 0) {\n VirtualDOM.render(null, contentNode);\n return;\n }\n // If the is a query but no results, render the empty message.\n if (query && results.length === 0) {\n let content = this.renderer.renderEmptyMessage({ query });\n VirtualDOM.render(content, contentNode);\n return;\n }\n // Create the render content for the search results.\n let renderer = this.renderer;\n let activeIndex = this._activeIndex;\n let content = new Array(results.length);\n for (let i = 0, n = results.length; i < n; ++i) {\n let result = results[i];\n if (result.type === 'header') {\n let indices = result.indices;\n let category = result.category;\n content[i] = renderer.renderHeader({ category, indices });\n }\n else {\n let item = result.item;\n let indices = result.indices;\n let active = i === activeIndex;\n content[i] = renderer.renderItem({ item, indices, active });\n }\n }\n // Render the search result content.\n VirtualDOM.render(content, contentNode);\n // Adjust the scroll position as needed.\n if (activeIndex < 0 || activeIndex >= results.length) {\n contentNode.scrollTop = 0;\n }\n else {\n let element = contentNode.children[activeIndex];\n ElementExt.scrollIntoViewIfNeeded(contentNode, element);\n }\n }\n /**\n * Handle the `'click'` event for the command palette.\n */\n _evtClick(event) {\n // Bail if the click is not the left button.\n if (event.button !== 0) {\n return;\n }\n // Clear input if the target is clear button\n if (event.target.classList.contains('lm-close-icon')) {\n this.inputNode.value = '';\n this.refresh();\n return;\n }\n // Find the index of the item which was clicked.\n let index = ArrayExt.findFirstIndex(this.contentNode.children, node => {\n return node.contains(event.target);\n });\n // Bail if the click was not on an item.\n if (index === -1) {\n return;\n }\n // Kill the event when a content item is clicked.\n event.preventDefault();\n event.stopPropagation();\n // Execute the item if possible.\n this._execute(index);\n }\n /**\n * Handle the `'keydown'` event for the command palette.\n */\n _evtKeyDown(event) {\n if (event.altKey || event.ctrlKey || event.metaKey || event.shiftKey) {\n return;\n }\n switch (event.keyCode) {\n case 13: // Enter\n event.preventDefault();\n event.stopPropagation();\n this._execute(this._activeIndex);\n break;\n case 38: // Up Arrow\n event.preventDefault();\n event.stopPropagation();\n this._activatePreviousItem();\n break;\n case 40: // Down Arrow\n event.preventDefault();\n event.stopPropagation();\n this._activateNextItem();\n break;\n }\n }\n /**\n * Activate the next enabled command item.\n */\n _activateNextItem() {\n // Bail if there are no search results.\n if (!this._results || this._results.length === 0) {\n return;\n }\n // Find the next enabled item index.\n let ai = this._activeIndex;\n let n = this._results.length;\n let start = ai < n - 1 ? ai + 1 : 0;\n let stop = start === 0 ? n - 1 : start - 1;\n this._activeIndex = ArrayExt.findFirstIndex(this._results, Private$a.canActivate, start, stop);\n // Schedule an update of the items.\n this.update();\n }\n /**\n * Activate the previous enabled command item.\n */\n _activatePreviousItem() {\n // Bail if there are no search results.\n if (!this._results || this._results.length === 0) {\n return;\n }\n // Find the previous enabled item index.\n let ai = this._activeIndex;\n let n = this._results.length;\n let start = ai <= 0 ? n - 1 : ai - 1;\n let stop = start === n - 1 ? 0 : start + 1;\n this._activeIndex = ArrayExt.findLastIndex(this._results, Private$a.canActivate, start, stop);\n // Schedule an update of the items.\n this.update();\n }\n /**\n * Execute the command item at the given index, if possible.\n */\n _execute(index) {\n // Bail if there are no search results.\n if (!this._results) {\n return;\n }\n // Bail if the index is out of range.\n let part = this._results[index];\n if (!part) {\n return;\n }\n // Update the search text if the item is a header.\n if (part.type === 'header') {\n let input = this.inputNode;\n input.value = `${part.category.toLowerCase()} `;\n input.focus();\n this.refresh();\n return;\n }\n // Bail if item is not enabled.\n if (!part.item.isEnabled) {\n return;\n }\n // Execute the item.\n this.commands.execute(part.item.command, part.item.args);\n // Clear the query text.\n this.inputNode.value = '';\n // Refresh the search results.\n this.refresh();\n }\n /**\n * Toggle the focused modifier based on the input node focus state.\n */\n _toggleFocused() {\n let focused = document.activeElement === this.inputNode;\n this.toggleClass('lm-mod-focused', focused);\n }\n /**\n * A signal handler for generic command changes.\n */\n _onGenericChange() {\n this.refresh();\n }\n}\n/**\n * The namespace for the `CommandPalette` class statics.\n */\n(function (CommandPalette) {\n /**\n * The default implementation of `IRenderer`.\n */\n class Renderer {\n /**\n * Render the virtual element for a command palette header.\n *\n * @param data - The data to use for rendering the header.\n *\n * @returns A virtual element representing the header.\n */\n renderHeader(data) {\n let content = this.formatHeader(data);\n return h.li({ className: 'lm-CommandPalette-header' }, content);\n }\n /**\n * Render the virtual element for a command palette item.\n *\n * @param data - The data to use for rendering the item.\n *\n * @returns A virtual element representing the item.\n */\n renderItem(data) {\n let className = this.createItemClass(data);\n let dataset = this.createItemDataset(data);\n if (data.item.isToggleable) {\n return h.li({\n className,\n dataset,\n role: 'menuitemcheckbox',\n 'aria-checked': `${data.item.isToggled}`\n }, this.renderItemIcon(data), this.renderItemContent(data), this.renderItemShortcut(data));\n }\n return h.li({\n className,\n dataset,\n role: 'menuitem'\n }, this.renderItemIcon(data), this.renderItemContent(data), this.renderItemShortcut(data));\n }\n /**\n * Render the empty results message for a command palette.\n *\n * @param data - The data to use for rendering the message.\n *\n * @returns A virtual element representing the message.\n */\n renderEmptyMessage(data) {\n let content = this.formatEmptyMessage(data);\n return h.li({ className: 'lm-CommandPalette-emptyMessage' }, content);\n }\n /**\n * Render the icon for a command palette item.\n *\n * @param data - The data to use for rendering the icon.\n *\n * @returns A virtual element representing the icon.\n */\n renderItemIcon(data) {\n let className = this.createIconClass(data);\n // If data.item.icon is undefined, it will be ignored.\n return h.div({ className }, data.item.icon, data.item.iconLabel);\n }\n /**\n * Render the content for a command palette item.\n *\n * @param data - The data to use for rendering the content.\n *\n * @returns A virtual element representing the content.\n */\n renderItemContent(data) {\n return h.div({ className: 'lm-CommandPalette-itemContent' }, this.renderItemLabel(data), this.renderItemCaption(data));\n }\n /**\n * Render the label for a command palette item.\n *\n * @param data - The data to use for rendering the label.\n *\n * @returns A virtual element representing the label.\n */\n renderItemLabel(data) {\n let content = this.formatItemLabel(data);\n return h.div({ className: 'lm-CommandPalette-itemLabel' }, content);\n }\n /**\n * Render the caption for a command palette item.\n *\n * @param data - The data to use for rendering the caption.\n *\n * @returns A virtual element representing the caption.\n */\n renderItemCaption(data) {\n let content = this.formatItemCaption(data);\n return h.div({ className: 'lm-CommandPalette-itemCaption' }, content);\n }\n /**\n * Render the shortcut for a command palette item.\n *\n * @param data - The data to use for rendering the shortcut.\n *\n * @returns A virtual element representing the shortcut.\n */\n renderItemShortcut(data) {\n let content = this.formatItemShortcut(data);\n return h.div({ className: 'lm-CommandPalette-itemShortcut' }, content);\n }\n /**\n * Create the class name for the command palette item.\n *\n * @param data - The data to use for the class name.\n *\n * @returns The full class name for the command palette item.\n */\n createItemClass(data) {\n // Set up the initial class name.\n let name = 'lm-CommandPalette-item';\n // Add the boolean state classes.\n if (!data.item.isEnabled) {\n name += ' lm-mod-disabled';\n }\n if (data.item.isToggled) {\n name += ' lm-mod-toggled';\n }\n if (data.active) {\n name += ' lm-mod-active';\n }\n // Add the extra class.\n let extra = data.item.className;\n if (extra) {\n name += ` ${extra}`;\n }\n // Return the complete class name.\n return name;\n }\n /**\n * Create the dataset for the command palette item.\n *\n * @param data - The data to use for creating the dataset.\n *\n * @returns The dataset for the command palette item.\n */\n createItemDataset(data) {\n return { ...data.item.dataset, command: data.item.command };\n }\n /**\n * Create the class name for the command item icon.\n *\n * @param data - The data to use for the class name.\n *\n * @returns The full class name for the item icon.\n */\n createIconClass(data) {\n let name = 'lm-CommandPalette-itemIcon';\n let extra = data.item.iconClass;\n return extra ? `${name} ${extra}` : name;\n }\n /**\n * Create the render content for the header node.\n *\n * @param data - The data to use for the header content.\n *\n * @returns The content to add to the header node.\n */\n formatHeader(data) {\n if (!data.indices || data.indices.length === 0) {\n return data.category;\n }\n return StringExt.highlight(data.category, data.indices, h.mark);\n }\n /**\n * Create the render content for the empty message node.\n *\n * @param data - The data to use for the empty message content.\n *\n * @returns The content to add to the empty message node.\n */\n formatEmptyMessage(data) {\n return `No commands found that match '${data.query}'`;\n }\n /**\n * Create the render content for the item shortcut node.\n *\n * @param data - The data to use for the shortcut content.\n *\n * @returns The content to add to the shortcut node.\n */\n formatItemShortcut(data) {\n let kb = data.item.keyBinding;\n return kb ? CommandRegistry.formatKeystroke(kb.keys) : null;\n }\n /**\n * Create the render content for the item label node.\n *\n * @param data - The data to use for the label content.\n *\n * @returns The content to add to the label node.\n */\n formatItemLabel(data) {\n if (!data.indices || data.indices.length === 0) {\n return data.item.label;\n }\n return StringExt.highlight(data.item.label, data.indices, h.mark);\n }\n /**\n * Create the render content for the item caption node.\n *\n * @param data - The data to use for the caption content.\n *\n * @returns The content to add to the caption node.\n */\n formatItemCaption(data) {\n return data.item.caption;\n }\n }\n CommandPalette.Renderer = Renderer;\n /**\n * The default `Renderer` instance.\n */\n CommandPalette.defaultRenderer = new Renderer();\n})(CommandPalette || (CommandPalette = {}));\n/**\n * The namespace for the module implementation details.\n */\nvar Private$a;\n(function (Private) {\n /**\n * Create the DOM node for a command palette.\n */\n function createNode() {\n let node = document.createElement('div');\n let search = document.createElement('div');\n let wrapper = document.createElement('div');\n let input = document.createElement('input');\n let content = document.createElement('ul');\n let clear = document.createElement('button');\n search.className = 'lm-CommandPalette-search';\n wrapper.className = 'lm-CommandPalette-wrapper';\n input.className = 'lm-CommandPalette-input';\n clear.className = 'lm-close-icon';\n content.className = 'lm-CommandPalette-content';\n content.setAttribute('role', 'menu');\n input.spellcheck = false;\n wrapper.appendChild(input);\n wrapper.appendChild(clear);\n search.appendChild(wrapper);\n node.appendChild(search);\n node.appendChild(content);\n return node;\n }\n Private.createNode = createNode;\n /**\n * Create a new command item from a command registry and options.\n */\n function createItem(commands, options) {\n return new CommandItem(commands, options);\n }\n Private.createItem = createItem;\n /**\n * Search an array of command items for fuzzy matches.\n */\n function search(items, query) {\n // Fuzzy match the items for the query.\n let scores = matchItems(items, query);\n // Sort the items based on their score.\n scores.sort(scoreCmp);\n // Create the results for the search.\n return createResults(scores);\n }\n Private.search = search;\n /**\n * Test whether a result item can be activated.\n */\n function canActivate(result) {\n return result.type === 'item' && result.item.isEnabled;\n }\n Private.canActivate = canActivate;\n /**\n * Normalize a category for a command item.\n */\n function normalizeCategory(category) {\n return category.trim().replace(/\\s+/g, ' ');\n }\n /**\n * Normalize the query text for a fuzzy search.\n */\n function normalizeQuery(text) {\n return text.replace(/\\s+/g, '').toLowerCase();\n }\n /**\n * Perform a fuzzy match on an array of command items.\n */\n function matchItems(items, query) {\n // Normalize the query text to lower case with no whitespace.\n query = normalizeQuery(query);\n // Create the array to hold the scores.\n let scores = [];\n // Iterate over the items and match against the query.\n for (let i = 0, n = items.length; i < n; ++i) {\n // Ignore items which are not visible.\n let item = items[i];\n if (!item.isVisible) {\n continue;\n }\n // If the query is empty, all items are matched by default.\n if (!query) {\n scores.push({\n matchType: 3 /* MatchType.Default */,\n categoryIndices: null,\n labelIndices: null,\n score: 0,\n item\n });\n continue;\n }\n // Run the fuzzy search for the item and query.\n let score = fuzzySearch(item, query);\n // Ignore the item if it is not a match.\n if (!score) {\n continue;\n }\n // Penalize disabled items.\n // TODO - push disabled items all the way down in sort cmp?\n if (!item.isEnabled) {\n score.score += 1000;\n }\n // Add the score to the results.\n scores.push(score);\n }\n // Return the final array of scores.\n return scores;\n }\n /**\n * Perform a fuzzy search on a single command item.\n */\n function fuzzySearch(item, query) {\n // Create the source text to be searched.\n let category = item.category.toLowerCase();\n let label = item.label.toLowerCase();\n let source = `${category} ${label}`;\n // Set up the match score and indices array.\n let score = Infinity;\n let indices = null;\n // The regex for search word boundaries\n let rgx = /\\b\\w/g;\n // Search the source by word boundary.\n // eslint-disable-next-line no-constant-condition\n while (true) {\n // Find the next word boundary in the source.\n let rgxMatch = rgx.exec(source);\n // Break if there is no more source context.\n if (!rgxMatch) {\n break;\n }\n // Run the string match on the relevant substring.\n let match = StringExt.matchSumOfDeltas(source, query, rgxMatch.index);\n // Break if there is no match.\n if (!match) {\n break;\n }\n // Update the match if the score is better.\n if (match.score <= score) {\n score = match.score;\n indices = match.indices;\n }\n }\n // Bail if there was no match.\n if (!indices || score === Infinity) {\n return null;\n }\n // Compute the pivot index between category and label text.\n let pivot = category.length + 1;\n // Find the slice index to separate matched indices.\n let j = ArrayExt.lowerBound(indices, pivot, (a, b) => a - b);\n // Extract the matched category and label indices.\n let categoryIndices = indices.slice(0, j);\n let labelIndices = indices.slice(j);\n // Adjust the label indices for the pivot offset.\n for (let i = 0, n = labelIndices.length; i < n; ++i) {\n labelIndices[i] -= pivot;\n }\n // Handle a pure label match.\n if (categoryIndices.length === 0) {\n return {\n matchType: 0 /* MatchType.Label */,\n categoryIndices: null,\n labelIndices,\n score,\n item\n };\n }\n // Handle a pure category match.\n if (labelIndices.length === 0) {\n return {\n matchType: 1 /* MatchType.Category */,\n categoryIndices,\n labelIndices: null,\n score,\n item\n };\n }\n // Handle a split match.\n return {\n matchType: 2 /* MatchType.Split */,\n categoryIndices,\n labelIndices,\n score,\n item\n };\n }\n /**\n * A sort comparison function for a match score.\n */\n function scoreCmp(a, b) {\n // First compare based on the match type\n let m1 = a.matchType - b.matchType;\n if (m1 !== 0) {\n return m1;\n }\n // Otherwise, compare based on the match score.\n let d1 = a.score - b.score;\n if (d1 !== 0) {\n return d1;\n }\n // Find the match index based on the match type.\n let i1 = 0;\n let i2 = 0;\n switch (a.matchType) {\n case 0 /* MatchType.Label */:\n i1 = a.labelIndices[0];\n i2 = b.labelIndices[0];\n break;\n case 1 /* MatchType.Category */:\n case 2 /* MatchType.Split */:\n i1 = a.categoryIndices[0];\n i2 = b.categoryIndices[0];\n break;\n }\n // Compare based on the match index.\n if (i1 !== i2) {\n return i1 - i2;\n }\n // Otherwise, compare by category.\n let d2 = a.item.category.localeCompare(b.item.category);\n if (d2 !== 0) {\n return d2;\n }\n // Otherwise, compare by rank.\n let r1 = a.item.rank;\n let r2 = b.item.rank;\n if (r1 !== r2) {\n return r1 < r2 ? -1 : 1; // Infinity safe\n }\n // Finally, compare by label.\n return a.item.label.localeCompare(b.item.label);\n }\n /**\n * Create the results from an array of sorted scores.\n */\n function createResults(scores) {\n // Set up an array to track which scores have been visited.\n let visited = new Array(scores.length);\n ArrayExt.fill(visited, false);\n // Set up the search results array.\n let results = [];\n // Iterate over each score in the array.\n for (let i = 0, n = scores.length; i < n; ++i) {\n // Ignore a score which has already been processed.\n if (visited[i]) {\n continue;\n }\n // Extract the current item and indices.\n let { item, categoryIndices } = scores[i];\n // Extract the category for the current item.\n let category = item.category;\n // Add the header result for the category.\n results.push({ type: 'header', category, indices: categoryIndices });\n // Find the rest of the scores with the same category.\n for (let j = i; j < n; ++j) {\n // Ignore a score which has already been processed.\n if (visited[j]) {\n continue;\n }\n // Extract the data for the current score.\n let { item, labelIndices } = scores[j];\n // Ignore an item with a different category.\n if (item.category !== category) {\n continue;\n }\n // Create the item result for the score.\n results.push({ type: 'item', item, indices: labelIndices });\n // Mark the score as processed.\n visited[j] = true;\n }\n }\n // Return the final results.\n return results;\n }\n /**\n * A concrete implementation of `CommandPalette.IItem`.\n */\n class CommandItem {\n /**\n * Construct a new command item.\n */\n constructor(commands, options) {\n this._commands = commands;\n this.category = normalizeCategory(options.category);\n this.command = options.command;\n this.args = options.args || JSONExt.emptyObject;\n this.rank = options.rank !== undefined ? options.rank : Infinity;\n }\n /**\n * The display label for the command item.\n */\n get label() {\n return this._commands.label(this.command, this.args);\n }\n /**\n * The icon renderer for the command item.\n */\n get icon() {\n return this._commands.icon(this.command, this.args);\n }\n /**\n * The icon class for the command item.\n */\n get iconClass() {\n return this._commands.iconClass(this.command, this.args);\n }\n /**\n * The icon label for the command item.\n */\n get iconLabel() {\n return this._commands.iconLabel(this.command, this.args);\n }\n /**\n * The display caption for the command item.\n */\n get caption() {\n return this._commands.caption(this.command, this.args);\n }\n /**\n * The extra class name for the command item.\n */\n get className() {\n return this._commands.className(this.command, this.args);\n }\n /**\n * The dataset for the command item.\n */\n get dataset() {\n return this._commands.dataset(this.command, this.args);\n }\n /**\n * Whether the command item is enabled.\n */\n get isEnabled() {\n return this._commands.isEnabled(this.command, this.args);\n }\n /**\n * Whether the command item is toggled.\n */\n get isToggled() {\n return this._commands.isToggled(this.command, this.args);\n }\n /**\n * Whether the command item is toggleable.\n */\n get isToggleable() {\n return this._commands.isToggleable(this.command, this.args);\n }\n /**\n * Whether the command item is visible.\n */\n get isVisible() {\n return this._commands.isVisible(this.command, this.args);\n }\n /**\n * The key binding for the command item.\n */\n get keyBinding() {\n let { command, args } = this;\n return (ArrayExt.findLastValue(this._commands.keyBindings, kb => {\n return kb.command === command && JSONExt.deepEqual(kb.args, args);\n }) || null);\n }\n }\n})(Private$a || (Private$a = {}));\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * A widget which displays items as a canonical menu.\n */\nclass Menu extends Widget {\n /**\n * Construct a new menu.\n *\n * @param options - The options for initializing the menu.\n */\n constructor(options) {\n super({ node: Private$9.createNode() });\n this._childIndex = -1;\n this._activeIndex = -1;\n this._openTimerID = 0;\n this._closeTimerID = 0;\n this._items = [];\n this._childMenu = null;\n this._parentMenu = null;\n this._aboutToClose = new Signal(this);\n this._menuRequested = new Signal(this);\n this.addClass('lm-Menu');\n this.setFlag(Widget.Flag.DisallowLayout);\n this.commands = options.commands;\n this.renderer = options.renderer || Menu.defaultRenderer;\n }\n /**\n * Dispose of the resources held by the menu.\n */\n dispose() {\n this.close();\n this._items.length = 0;\n super.dispose();\n }\n /**\n * A signal emitted just before the menu is closed.\n *\n * #### Notes\n * This signal is emitted when the menu receives a `'close-request'`\n * message, just before it removes itself from the DOM.\n *\n * This signal is not emitted if the menu is already detached from\n * the DOM when it receives the `'close-request'` message.\n */\n get aboutToClose() {\n return this._aboutToClose;\n }\n /**\n * A signal emitted when a new menu is requested by the user.\n *\n * #### Notes\n * This signal is emitted whenever the user presses the right or left\n * arrow keys, and a submenu cannot be opened or closed in response.\n *\n * This signal is useful when implementing menu bars in order to open\n * the next or previous menu in response to a user key press.\n *\n * This signal is only emitted for the root menu in a hierarchy.\n */\n get menuRequested() {\n return this._menuRequested;\n }\n /**\n * The parent menu of the menu.\n *\n * #### Notes\n * This is `null` unless the menu is an open submenu.\n */\n get parentMenu() {\n return this._parentMenu;\n }\n /**\n * The child menu of the menu.\n *\n * #### Notes\n * This is `null` unless the menu has an open submenu.\n */\n get childMenu() {\n return this._childMenu;\n }\n /**\n * The root menu of the menu hierarchy.\n */\n get rootMenu() {\n // eslint-disable-next-line @typescript-eslint/no-this-alias\n let menu = this;\n while (menu._parentMenu) {\n menu = menu._parentMenu;\n }\n return menu;\n }\n /**\n * The leaf menu of the menu hierarchy.\n */\n get leafMenu() {\n // eslint-disable-next-line @typescript-eslint/no-this-alias\n let menu = this;\n while (menu._childMenu) {\n menu = menu._childMenu;\n }\n return menu;\n }\n /**\n * The menu content node.\n *\n * #### Notes\n * This is the node which holds the menu item nodes.\n *\n * Modifying this node directly can lead to undefined behavior.\n */\n get contentNode() {\n return this.node.getElementsByClassName('lm-Menu-content')[0];\n }\n /**\n * Get the currently active menu item.\n */\n get activeItem() {\n return this._items[this._activeIndex] || null;\n }\n /**\n * Set the currently active menu item.\n *\n * #### Notes\n * If the item cannot be activated, the item will be set to `null`.\n */\n set activeItem(value) {\n this.activeIndex = value ? this._items.indexOf(value) : -1;\n }\n /**\n * Get the index of the currently active menu item.\n *\n * #### Notes\n * This will be `-1` if no menu item is active.\n */\n get activeIndex() {\n return this._activeIndex;\n }\n /**\n * Set the index of the currently active menu item.\n *\n * #### Notes\n * If the item cannot be activated, the index will be set to `-1`.\n */\n set activeIndex(value) {\n // Adjust the value for an out of range index.\n if (value < 0 || value >= this._items.length) {\n value = -1;\n }\n // Ensure the item can be activated.\n if (value !== -1 && !Private$9.canActivate(this._items[value])) {\n value = -1;\n }\n // Bail if the index will not change.\n if (this._activeIndex === value) {\n return;\n }\n // Update the active index.\n this._activeIndex = value;\n // Make active element in focus\n if (this._activeIndex >= 0 &&\n this.contentNode.childNodes[this._activeIndex]) {\n this.contentNode.childNodes[this._activeIndex].focus();\n }\n // schedule an update of the items.\n this.update();\n }\n /**\n * A read-only array of the menu items in the menu.\n */\n get items() {\n return this._items;\n }\n /**\n * Activate the next selectable item in the menu.\n *\n * #### Notes\n * If no item is selectable, the index will be set to `-1`.\n */\n activateNextItem() {\n let n = this._items.length;\n let ai = this._activeIndex;\n let start = ai < n - 1 ? ai + 1 : 0;\n let stop = start === 0 ? n - 1 : start - 1;\n this.activeIndex = ArrayExt.findFirstIndex(this._items, Private$9.canActivate, start, stop);\n }\n /**\n * Activate the previous selectable item in the menu.\n *\n * #### Notes\n * If no item is selectable, the index will be set to `-1`.\n */\n activatePreviousItem() {\n let n = this._items.length;\n let ai = this._activeIndex;\n let start = ai <= 0 ? n - 1 : ai - 1;\n let stop = start === n - 1 ? 0 : start + 1;\n this.activeIndex = ArrayExt.findLastIndex(this._items, Private$9.canActivate, start, stop);\n }\n /**\n * Trigger the active menu item.\n *\n * #### Notes\n * If the active item is a submenu, it will be opened and the first\n * item will be activated.\n *\n * If the active item is a command, the command will be executed.\n *\n * If the menu is not attached, this is a no-op.\n *\n * If there is no active item, this is a no-op.\n */\n triggerActiveItem() {\n // Bail if the menu is not attached.\n if (!this.isAttached) {\n return;\n }\n // Bail if there is no active item.\n let item = this.activeItem;\n if (!item) {\n return;\n }\n // Cancel the pending timers.\n this._cancelOpenTimer();\n this._cancelCloseTimer();\n // If the item is a submenu, open it.\n if (item.type === 'submenu') {\n this._openChildMenu(true);\n return;\n }\n // Close the root menu before executing the command.\n this.rootMenu.close();\n // Execute the command for the item.\n let { command, args } = item;\n if (this.commands.isEnabled(command, args)) {\n this.commands.execute(command, args);\n }\n else {\n console.log(`Command '${command}' is disabled.`);\n }\n }\n /**\n * Add a menu item to the end of the menu.\n *\n * @param options - The options for creating the menu item.\n *\n * @returns The menu item added to the menu.\n */\n addItem(options) {\n return this.insertItem(this._items.length, options);\n }\n /**\n * Insert a menu item into the menu at the specified index.\n *\n * @param index - The index at which to insert the item.\n *\n * @param options - The options for creating the menu item.\n *\n * @returns The menu item added to the menu.\n *\n * #### Notes\n * The index will be clamped to the bounds of the items.\n */\n insertItem(index, options) {\n // Close the menu if it's attached.\n if (this.isAttached) {\n this.close();\n }\n // Reset the active index.\n this.activeIndex = -1;\n // Clamp the insert index to the array bounds.\n let i = Math.max(0, Math.min(index, this._items.length));\n // Create the item for the options.\n let item = Private$9.createItem(this, options);\n // Insert the item into the array.\n ArrayExt.insert(this._items, i, item);\n // Schedule an update of the items.\n this.update();\n // Return the item added to the menu.\n return item;\n }\n /**\n * Remove an item from the menu.\n *\n * @param item - The item to remove from the menu.\n *\n * #### Notes\n * This is a no-op if the item is not in the menu.\n */\n removeItem(item) {\n this.removeItemAt(this._items.indexOf(item));\n }\n /**\n * Remove the item at a given index from the menu.\n *\n * @param index - The index of the item to remove.\n *\n * #### Notes\n * This is a no-op if the index is out of range.\n */\n removeItemAt(index) {\n // Close the menu if it's attached.\n if (this.isAttached) {\n this.close();\n }\n // Reset the active index.\n this.activeIndex = -1;\n // Remove the item from the array.\n let item = ArrayExt.removeAt(this._items, index);\n // Bail if the index is out of range.\n if (!item) {\n return;\n }\n // Schedule an update of the items.\n this.update();\n }\n /**\n * Remove all menu items from the menu.\n */\n clearItems() {\n // Close the menu if it's attached.\n if (this.isAttached) {\n this.close();\n }\n // Reset the active index.\n this.activeIndex = -1;\n // Bail if there is nothing to remove.\n if (this._items.length === 0) {\n return;\n }\n // Clear the items.\n this._items.length = 0;\n // Schedule an update of the items.\n this.update();\n }\n /**\n * Open the menu at the specified location.\n *\n * @param x - The client X coordinate of the menu location.\n *\n * @param y - The client Y coordinate of the menu location.\n *\n * @param options - The additional options for opening the menu.\n *\n * #### Notes\n * The menu will be opened at the given location unless it will not\n * fully fit on the screen. If it will not fit, it will be adjusted\n * to fit naturally on the screen.\n *\n * This is a no-op if the menu is already attached to the DOM.\n */\n open(x, y, options = {}) {\n // Bail early if the menu is already attached.\n if (this.isAttached) {\n return;\n }\n // Extract the position options.\n let forceX = options.forceX || false;\n let forceY = options.forceY || false;\n // Open the menu as a root menu.\n Private$9.openRootMenu(this, x, y, forceX, forceY);\n // Activate the menu to accept keyboard input.\n this.activate();\n }\n /**\n * Handle the DOM events for the menu.\n *\n * @param event - The DOM event sent to the menu.\n *\n * #### Notes\n * This method implements the DOM `EventListener` interface and is\n * called in response to events on the menu's DOM nodes. It should\n * not be called directly by user code.\n */\n handleEvent(event) {\n switch (event.type) {\n case 'keydown':\n this._evtKeyDown(event);\n break;\n case 'mouseup':\n this._evtMouseUp(event);\n break;\n case 'mousemove':\n this._evtMouseMove(event);\n break;\n case 'mouseenter':\n this._evtMouseEnter(event);\n break;\n case 'mouseleave':\n this._evtMouseLeave(event);\n break;\n case 'mousedown':\n this._evtMouseDown(event);\n break;\n case 'contextmenu':\n event.preventDefault();\n event.stopPropagation();\n break;\n }\n }\n /**\n * A message handler invoked on a `'before-attach'` message.\n */\n onBeforeAttach(msg) {\n this.node.addEventListener('keydown', this);\n this.node.addEventListener('mouseup', this);\n this.node.addEventListener('mousemove', this);\n this.node.addEventListener('mouseenter', this);\n this.node.addEventListener('mouseleave', this);\n this.node.addEventListener('contextmenu', this);\n document.addEventListener('mousedown', this, true);\n }\n /**\n * A message handler invoked on an `'after-detach'` message.\n */\n onAfterDetach(msg) {\n this.node.removeEventListener('keydown', this);\n this.node.removeEventListener('mouseup', this);\n this.node.removeEventListener('mousemove', this);\n this.node.removeEventListener('mouseenter', this);\n this.node.removeEventListener('mouseleave', this);\n this.node.removeEventListener('contextmenu', this);\n document.removeEventListener('mousedown', this, true);\n }\n /**\n * A message handler invoked on an `'activate-request'` message.\n */\n onActivateRequest(msg) {\n if (this.isAttached) {\n this.node.focus();\n }\n }\n /**\n * A message handler invoked on an `'update-request'` message.\n */\n onUpdateRequest(msg) {\n let items = this._items;\n let renderer = this.renderer;\n let activeIndex = this._activeIndex;\n let collapsedFlags = Private$9.computeCollapsed(items);\n let content = new Array(items.length);\n for (let i = 0, n = items.length; i < n; ++i) {\n let item = items[i];\n let active = i === activeIndex;\n let collapsed = collapsedFlags[i];\n content[i] = renderer.renderItem({\n item,\n active,\n collapsed,\n onfocus: () => {\n this.activeIndex = i;\n }\n });\n }\n VirtualDOM.render(content, this.contentNode);\n }\n /**\n * A message handler invoked on a `'close-request'` message.\n */\n onCloseRequest(msg) {\n // Cancel the pending timers.\n this._cancelOpenTimer();\n this._cancelCloseTimer();\n // Reset the active index.\n this.activeIndex = -1;\n // Close any open child menu.\n let childMenu = this._childMenu;\n if (childMenu) {\n this._childIndex = -1;\n this._childMenu = null;\n childMenu._parentMenu = null;\n childMenu.close();\n }\n // Remove this menu from its parent and activate the parent.\n let parentMenu = this._parentMenu;\n if (parentMenu) {\n this._parentMenu = null;\n parentMenu._childIndex = -1;\n parentMenu._childMenu = null;\n parentMenu.activate();\n }\n // Emit the `aboutToClose` signal if the menu is attached.\n if (this.isAttached) {\n this._aboutToClose.emit(undefined);\n }\n // Finish closing the menu.\n super.onCloseRequest(msg);\n }\n /**\n * Handle the `'keydown'` event for the menu.\n *\n * #### Notes\n * This listener is attached to the menu node.\n */\n _evtKeyDown(event) {\n // A menu handles all keydown events.\n event.preventDefault();\n event.stopPropagation();\n // Fetch the key code for the event.\n let kc = event.keyCode;\n // Enter\n if (kc === 13) {\n this.triggerActiveItem();\n return;\n }\n // Escape\n if (kc === 27) {\n this.close();\n return;\n }\n // Left Arrow\n if (kc === 37) {\n if (this._parentMenu) {\n this.close();\n }\n else {\n this._menuRequested.emit('previous');\n }\n return;\n }\n // Up Arrow\n if (kc === 38) {\n this.activatePreviousItem();\n return;\n }\n // Right Arrow\n if (kc === 39) {\n let item = this.activeItem;\n if (item && item.type === 'submenu') {\n this.triggerActiveItem();\n }\n else {\n this.rootMenu._menuRequested.emit('next');\n }\n return;\n }\n // Down Arrow\n if (kc === 40) {\n this.activateNextItem();\n return;\n }\n // Get the pressed key character.\n let key = getKeyboardLayout().keyForKeydownEvent(event);\n // Bail if the key is not valid.\n if (!key) {\n return;\n }\n // Search for the next best matching mnemonic item.\n let start = this._activeIndex + 1;\n let result = Private$9.findMnemonic(this._items, key, start);\n // Handle the requested mnemonic based on the search results.\n // If exactly one mnemonic is matched, that item is triggered.\n // Otherwise, the next mnemonic is activated if available,\n // followed by the auto mnemonic if available.\n if (result.index !== -1 && !result.multiple) {\n this.activeIndex = result.index;\n this.triggerActiveItem();\n }\n else if (result.index !== -1) {\n this.activeIndex = result.index;\n }\n else if (result.auto !== -1) {\n this.activeIndex = result.auto;\n }\n }\n /**\n * Handle the `'mouseup'` event for the menu.\n *\n * #### Notes\n * This listener is attached to the menu node.\n */\n _evtMouseUp(event) {\n if (event.button !== 0) {\n return;\n }\n event.preventDefault();\n event.stopPropagation();\n this.triggerActiveItem();\n }\n /**\n * Handle the `'mousemove'` event for the menu.\n *\n * #### Notes\n * This listener is attached to the menu node.\n */\n _evtMouseMove(event) {\n // Hit test the item nodes for the item under the mouse.\n let index = ArrayExt.findFirstIndex(this.contentNode.children, node => {\n return ElementExt.hitTest(node, event.clientX, event.clientY);\n });\n // Bail early if the mouse is already over the active index.\n if (index === this._activeIndex) {\n return;\n }\n // Update and coerce the active index.\n this.activeIndex = index;\n index = this.activeIndex;\n // If the index is the current child index, cancel the timers.\n if (index === this._childIndex) {\n this._cancelOpenTimer();\n this._cancelCloseTimer();\n return;\n }\n // If a child menu is currently open, start the close timer.\n if (this._childIndex !== -1) {\n this._startCloseTimer();\n }\n // Cancel the open timer to give a full delay for opening.\n this._cancelOpenTimer();\n // Bail if the active item is not a valid submenu item.\n let item = this.activeItem;\n if (!item || item.type !== 'submenu' || !item.submenu) {\n return;\n }\n // Start the open timer to open the active item submenu.\n this._startOpenTimer();\n }\n /**\n * Handle the `'mouseenter'` event for the menu.\n *\n * #### Notes\n * This listener is attached to the menu node.\n */\n _evtMouseEnter(event) {\n // Synchronize the active ancestor items.\n for (let menu = this._parentMenu; menu; menu = menu._parentMenu) {\n menu._cancelOpenTimer();\n menu._cancelCloseTimer();\n menu.activeIndex = menu._childIndex;\n }\n }\n /**\n * Handle the `'mouseleave'` event for the menu.\n *\n * #### Notes\n * This listener is attached to the menu node.\n */\n _evtMouseLeave(event) {\n // Cancel any pending submenu opening.\n this._cancelOpenTimer();\n // If there is no open child menu, just reset the active index.\n if (!this._childMenu) {\n this.activeIndex = -1;\n return;\n }\n // If the mouse is over the child menu, cancel the close timer.\n let { clientX, clientY } = event;\n if (ElementExt.hitTest(this._childMenu.node, clientX, clientY)) {\n this._cancelCloseTimer();\n return;\n }\n // Otherwise, reset the active index and start the close timer.\n this.activeIndex = -1;\n this._startCloseTimer();\n }\n /**\n * Handle the `'mousedown'` event for the menu.\n *\n * #### Notes\n * This listener is attached to the document node.\n */\n _evtMouseDown(event) {\n // Bail if the menu is not a root menu.\n if (this._parentMenu) {\n return;\n }\n // The mouse button which is pressed is irrelevant. If the press\n // is not on a menu, the entire hierarchy is closed and the event\n // is allowed to propagate. This allows other code to act on the\n // event, such as focusing the clicked element.\n if (Private$9.hitTestMenus(this, event.clientX, event.clientY)) {\n event.preventDefault();\n event.stopPropagation();\n }\n else {\n this.close();\n }\n }\n /**\n * Open the child menu at the active index immediately.\n *\n * If a different child menu is already open, it will be closed,\n * even if the active item is not a valid submenu.\n */\n _openChildMenu(activateFirst = false) {\n // If the item is not a valid submenu, close the child menu.\n let item = this.activeItem;\n if (!item || item.type !== 'submenu' || !item.submenu) {\n this._closeChildMenu();\n return;\n }\n // Do nothing if the child menu will not change.\n let submenu = item.submenu;\n if (submenu === this._childMenu) {\n return;\n }\n // Prior to any DOM modifications save window data\n Menu.saveWindowData();\n // Ensure the current child menu is closed.\n this._closeChildMenu();\n // Update the private child state.\n this._childMenu = submenu;\n this._childIndex = this._activeIndex;\n // Set the parent menu reference for the child.\n submenu._parentMenu = this;\n // Ensure the menu is updated and lookup the item node.\n MessageLoop.sendMessage(this, Widget.Msg.UpdateRequest);\n let itemNode = this.contentNode.children[this._activeIndex];\n // Open the submenu at the active node.\n Private$9.openSubmenu(submenu, itemNode);\n // Activate the first item if desired.\n if (activateFirst) {\n submenu.activeIndex = -1;\n submenu.activateNextItem();\n }\n // Activate the child menu.\n submenu.activate();\n }\n /**\n * Close the child menu immediately.\n *\n * This is a no-op if a child menu is not open.\n */\n _closeChildMenu() {\n if (this._childMenu) {\n this._childMenu.close();\n }\n }\n /**\n * Start the open timer, unless it is already pending.\n */\n _startOpenTimer() {\n if (this._openTimerID === 0) {\n this._openTimerID = window.setTimeout(() => {\n this._openTimerID = 0;\n this._openChildMenu();\n }, Private$9.TIMER_DELAY);\n }\n }\n /**\n * Start the close timer, unless it is already pending.\n */\n _startCloseTimer() {\n if (this._closeTimerID === 0) {\n this._closeTimerID = window.setTimeout(() => {\n this._closeTimerID = 0;\n this._closeChildMenu();\n }, Private$9.TIMER_DELAY);\n }\n }\n /**\n * Cancel the open timer, if the timer is pending.\n */\n _cancelOpenTimer() {\n if (this._openTimerID !== 0) {\n clearTimeout(this._openTimerID);\n this._openTimerID = 0;\n }\n }\n /**\n * Cancel the close timer, if the timer is pending.\n */\n _cancelCloseTimer() {\n if (this._closeTimerID !== 0) {\n clearTimeout(this._closeTimerID);\n this._closeTimerID = 0;\n }\n }\n /**\n * Save window data used for menu positioning in transient cache.\n *\n * In order to avoid layout trashing it is recommended to invoke this\n * method immediately prior to opening the menu and any DOM modifications\n * (like closing previously visible menu, or adding a class to menu widget).\n *\n * The transient cache will be released upon `open()` call.\n */\n static saveWindowData() {\n Private$9.saveWindowData();\n }\n}\n/**\n * The namespace for the `Menu` class statics.\n */\n(function (Menu) {\n /**\n * The default implementation of `IRenderer`.\n *\n * #### Notes\n * Subclasses are free to reimplement rendering methods as needed.\n */\n class Renderer {\n /**\n * Render the virtual element for a menu item.\n *\n * @param data - The data to use for rendering the item.\n *\n * @returns A virtual element representing the item.\n */\n renderItem(data) {\n let className = this.createItemClass(data);\n let dataset = this.createItemDataset(data);\n let aria = this.createItemARIA(data);\n return h.li({\n className,\n dataset,\n tabindex: '0',\n onfocus: data.onfocus,\n ...aria\n }, this.renderIcon(data), this.renderLabel(data), this.renderShortcut(data), this.renderSubmenu(data));\n }\n /**\n * Render the icon element for a menu item.\n *\n * @param data - The data to use for rendering the icon.\n *\n * @returns A virtual element representing the item icon.\n */\n renderIcon(data) {\n let className = this.createIconClass(data);\n // If data.item.icon is undefined, it will be ignored.\n return h.div({ className }, data.item.icon, data.item.iconLabel);\n }\n /**\n * Render the label element for a menu item.\n *\n * @param data - The data to use for rendering the label.\n *\n * @returns A virtual element representing the item label.\n */\n renderLabel(data) {\n let content = this.formatLabel(data);\n return h.div({ className: 'lm-Menu-itemLabel' }, content);\n }\n /**\n * Render the shortcut element for a menu item.\n *\n * @param data - The data to use for rendering the shortcut.\n *\n * @returns A virtual element representing the item shortcut.\n */\n renderShortcut(data) {\n let content = this.formatShortcut(data);\n return h.div({ className: 'lm-Menu-itemShortcut' }, content);\n }\n /**\n * Render the submenu icon element for a menu item.\n *\n * @param data - The data to use for rendering the submenu icon.\n *\n * @returns A virtual element representing the submenu icon.\n */\n renderSubmenu(data) {\n return h.div({ className: 'lm-Menu-itemSubmenuIcon' });\n }\n /**\n * Create the class name for the menu item.\n *\n * @param data - The data to use for the class name.\n *\n * @returns The full class name for the menu item.\n */\n createItemClass(data) {\n // Setup the initial class name.\n let name = 'lm-Menu-item';\n // Add the boolean state classes.\n if (!data.item.isEnabled) {\n name += ' lm-mod-disabled';\n }\n if (data.item.isToggled) {\n name += ' lm-mod-toggled';\n }\n if (!data.item.isVisible) {\n name += ' lm-mod-hidden';\n }\n if (data.active) {\n name += ' lm-mod-active';\n }\n if (data.collapsed) {\n name += ' lm-mod-collapsed';\n }\n // Add the extra class.\n let extra = data.item.className;\n if (extra) {\n name += ` ${extra}`;\n }\n // Return the complete class name.\n return name;\n }\n /**\n * Create the dataset for the menu item.\n *\n * @param data - The data to use for creating the dataset.\n *\n * @returns The dataset for the menu item.\n */\n createItemDataset(data) {\n let result;\n let { type, command, dataset } = data.item;\n if (type === 'command') {\n result = { ...dataset, type, command };\n }\n else {\n result = { ...dataset, type };\n }\n return result;\n }\n /**\n * Create the class name for the menu item icon.\n *\n * @param data - The data to use for the class name.\n *\n * @returns The full class name for the item icon.\n */\n createIconClass(data) {\n let name = 'lm-Menu-itemIcon';\n let extra = data.item.iconClass;\n return extra ? `${name} ${extra}` : name;\n }\n /**\n * Create the aria attributes for menu item.\n *\n * @param data - The data to use for the aria attributes.\n *\n * @returns The aria attributes object for the item.\n */\n createItemARIA(data) {\n let aria = {};\n switch (data.item.type) {\n case 'separator':\n aria.role = 'presentation';\n break;\n case 'submenu':\n aria['aria-haspopup'] = 'true';\n if (!data.item.isEnabled) {\n aria['aria-disabled'] = 'true';\n }\n break;\n default:\n if (!data.item.isEnabled) {\n aria['aria-disabled'] = 'true';\n }\n aria.role = 'menuitem';\n }\n return aria;\n }\n /**\n * Create the render content for the label node.\n *\n * @param data - The data to use for the label content.\n *\n * @returns The content to add to the label node.\n */\n formatLabel(data) {\n // Fetch the label text and mnemonic index.\n let { label, mnemonic } = data.item;\n // If the index is out of range, do not modify the label.\n if (mnemonic < 0 || mnemonic >= label.length) {\n return label;\n }\n // Split the label into parts.\n let prefix = label.slice(0, mnemonic);\n let suffix = label.slice(mnemonic + 1);\n let char = label[mnemonic];\n // Wrap the mnemonic character in a span.\n let span = h.span({ className: 'lm-Menu-itemMnemonic' }, char);\n // Return the content parts.\n return [prefix, span, suffix];\n }\n /**\n * Create the render content for the shortcut node.\n *\n * @param data - The data to use for the shortcut content.\n *\n * @returns The content to add to the shortcut node.\n */\n formatShortcut(data) {\n let kb = data.item.keyBinding;\n return kb ? CommandRegistry.formatKeystroke(kb.keys) : null;\n }\n }\n Menu.Renderer = Renderer;\n /**\n * The default `Renderer` instance.\n */\n Menu.defaultRenderer = new Renderer();\n})(Menu || (Menu = {}));\n/**\n * The namespace for the module implementation details.\n */\nvar Private$9;\n(function (Private) {\n /**\n * The ms delay for opening and closing a submenu.\n */\n Private.TIMER_DELAY = 300;\n /**\n * The horizontal pixel overlap for an open submenu.\n */\n Private.SUBMENU_OVERLAP = 3;\n let transientWindowDataCache = null;\n let transientCacheCounter = 0;\n function getWindowData() {\n // if transient cache is in use, take one from it\n if (transientCacheCounter > 0) {\n transientCacheCounter--;\n return transientWindowDataCache;\n }\n return _getWindowData();\n }\n /**\n * Store window data in transient cache.\n *\n * The transient cache will be released upon `getWindowData()` call.\n * If this function is called multiple times, the cache will be\n * retained until as many calls to `getWindowData()` were made.\n *\n * Note: should be called before any DOM modifications.\n */\n function saveWindowData() {\n transientWindowDataCache = _getWindowData();\n transientCacheCounter++;\n }\n Private.saveWindowData = saveWindowData;\n /**\n * Create the DOM node for a menu.\n */\n function createNode() {\n let node = document.createElement('div');\n let content = document.createElement('ul');\n content.className = 'lm-Menu-content';\n node.appendChild(content);\n content.setAttribute('role', 'menu');\n node.tabIndex = 0;\n return node;\n }\n Private.createNode = createNode;\n /**\n * Test whether a menu item can be activated.\n */\n function canActivate(item) {\n return item.type !== 'separator' && item.isEnabled && item.isVisible;\n }\n Private.canActivate = canActivate;\n /**\n * Create a new menu item for an owner menu.\n */\n function createItem(owner, options) {\n return new MenuItem(owner.commands, options);\n }\n Private.createItem = createItem;\n /**\n * Hit test a menu hierarchy starting at the given root.\n */\n function hitTestMenus(menu, x, y) {\n for (let temp = menu; temp; temp = temp.childMenu) {\n if (ElementExt.hitTest(temp.node, x, y)) {\n return true;\n }\n }\n return false;\n }\n Private.hitTestMenus = hitTestMenus;\n /**\n * Compute which extra separator items should be collapsed.\n */\n function computeCollapsed(items) {\n // Allocate the return array and fill it with `false`.\n let result = new Array(items.length);\n ArrayExt.fill(result, false);\n // Collapse the leading separators.\n let k1 = 0;\n let n = items.length;\n for (; k1 < n; ++k1) {\n let item = items[k1];\n if (!item.isVisible) {\n continue;\n }\n if (item.type !== 'separator') {\n break;\n }\n result[k1] = true;\n }\n // Hide the trailing separators.\n let k2 = n - 1;\n for (; k2 >= 0; --k2) {\n let item = items[k2];\n if (!item.isVisible) {\n continue;\n }\n if (item.type !== 'separator') {\n break;\n }\n result[k2] = true;\n }\n // Hide the remaining consecutive separators.\n let hide = false;\n while (++k1 < k2) {\n let item = items[k1];\n if (!item.isVisible) {\n continue;\n }\n if (item.type !== 'separator') {\n hide = false;\n }\n else if (hide) {\n result[k1] = true;\n }\n else {\n hide = true;\n }\n }\n // Return the resulting flags.\n return result;\n }\n Private.computeCollapsed = computeCollapsed;\n function _getWindowData() {\n return {\n pageXOffset: window.pageXOffset,\n pageYOffset: window.pageYOffset,\n clientWidth: document.documentElement.clientWidth,\n clientHeight: document.documentElement.clientHeight\n };\n }\n /**\n * Open a menu as a root menu at the target location.\n */\n function openRootMenu(menu, x, y, forceX, forceY) {\n // Get the current position and size of the main viewport.\n const windowData = getWindowData();\n let px = windowData.pageXOffset;\n let py = windowData.pageYOffset;\n let cw = windowData.clientWidth;\n let ch = windowData.clientHeight;\n // Ensure the menu is updated before attaching and measuring.\n MessageLoop.sendMessage(menu, Widget.Msg.UpdateRequest);\n // Compute the maximum allowed height for the menu.\n let maxHeight = ch - (forceY ? y : 0);\n // Fetch common variables.\n let node = menu.node;\n let style = node.style;\n // Clear the menu geometry and prepare it for measuring.\n style.opacity = '0';\n style.maxHeight = `${maxHeight}px`;\n // Attach the menu to the document.\n Widget.attach(menu, document.body);\n // Measure the size of the menu.\n let { width, height } = node.getBoundingClientRect();\n // Adjust the X position of the menu to fit on-screen.\n if (!forceX && x + width > px + cw) {\n x = px + cw - width;\n }\n // Adjust the Y position of the menu to fit on-screen.\n if (!forceY && y + height > py + ch) {\n if (y > py + ch) {\n y = py + ch - height;\n }\n else {\n y = y - height;\n }\n }\n // Update the position of the menu to the computed position.\n style.transform = `translate(${Math.max(0, x)}px, ${Math.max(0, y)}px`;\n // Finally, make the menu visible on the screen.\n style.opacity = '1';\n }\n Private.openRootMenu = openRootMenu;\n /**\n * Open a menu as a submenu using an item node for positioning.\n */\n function openSubmenu(submenu, itemNode) {\n // Get the current position and size of the main viewport.\n const windowData = getWindowData();\n let px = windowData.pageXOffset;\n let py = windowData.pageYOffset;\n let cw = windowData.clientWidth;\n let ch = windowData.clientHeight;\n // Ensure the menu is updated before opening.\n MessageLoop.sendMessage(submenu, Widget.Msg.UpdateRequest);\n // Compute the maximum allowed height for the menu.\n let maxHeight = ch;\n // Fetch common variables.\n let node = submenu.node;\n let style = node.style;\n // Clear the menu geometry and prepare it for measuring.\n style.opacity = '0';\n style.maxHeight = `${maxHeight}px`;\n // Attach the menu to the document.\n Widget.attach(submenu, document.body);\n // Measure the size of the menu.\n let { width, height } = node.getBoundingClientRect();\n // Compute the box sizing for the menu.\n let box = ElementExt.boxSizing(submenu.node);\n // Get the bounding rect for the target item node.\n let itemRect = itemNode.getBoundingClientRect();\n // Compute the target X position.\n let x = itemRect.right - Private.SUBMENU_OVERLAP;\n // Adjust the X position to fit on the screen.\n if (x + width > px + cw) {\n x = itemRect.left + Private.SUBMENU_OVERLAP - width;\n }\n // Compute the target Y position.\n let y = itemRect.top - box.borderTop - box.paddingTop;\n // Adjust the Y position to fit on the screen.\n if (y + height > py + ch) {\n y = itemRect.bottom + box.borderBottom + box.paddingBottom - height;\n }\n // Update the position of the menu to the computed position.\n style.transform = `translate(${Math.max(0, x)}px, ${Math.max(0, y)}px`;\n // Finally, make the menu visible on the screen.\n style.opacity = '1';\n }\n Private.openSubmenu = openSubmenu;\n /**\n * Find the best matching mnemonic item.\n *\n * The search starts at the given index and wraps around.\n */\n function findMnemonic(items, key, start) {\n // Setup the result variables.\n let index = -1;\n let auto = -1;\n let multiple = false;\n // Normalize the key to upper case.\n let upperKey = key.toUpperCase();\n // Search the items from the given start index.\n for (let i = 0, n = items.length; i < n; ++i) {\n // Compute the wrapped index.\n let k = (i + start) % n;\n // Lookup the item\n let item = items[k];\n // Ignore items which cannot be activated.\n if (!canActivate(item)) {\n continue;\n }\n // Ignore items with an empty label.\n let label = item.label;\n if (label.length === 0) {\n continue;\n }\n // Lookup the mnemonic index for the label.\n let mn = item.mnemonic;\n // Handle a valid mnemonic index.\n if (mn >= 0 && mn < label.length) {\n if (label[mn].toUpperCase() === upperKey) {\n if (index === -1) {\n index = k;\n }\n else {\n multiple = true;\n }\n }\n continue;\n }\n // Finally, handle the auto index if possible.\n if (auto === -1 && label[0].toUpperCase() === upperKey) {\n auto = k;\n }\n }\n // Return the search results.\n return { index, multiple, auto };\n }\n Private.findMnemonic = findMnemonic;\n /**\n * A concrete implementation of `Menu.IItem`.\n */\n class MenuItem {\n /**\n * Construct a new menu item.\n */\n constructor(commands, options) {\n this._commands = commands;\n this.type = options.type || 'command';\n this.command = options.command || '';\n this.args = options.args || JSONExt.emptyObject;\n this.submenu = options.submenu || null;\n }\n /**\n * The display label for the menu item.\n */\n get label() {\n if (this.type === 'command') {\n return this._commands.label(this.command, this.args);\n }\n if (this.type === 'submenu' && this.submenu) {\n return this.submenu.title.label;\n }\n return '';\n }\n /**\n * The mnemonic index for the menu item.\n */\n get mnemonic() {\n if (this.type === 'command') {\n return this._commands.mnemonic(this.command, this.args);\n }\n if (this.type === 'submenu' && this.submenu) {\n return this.submenu.title.mnemonic;\n }\n return -1;\n }\n /**\n * The icon renderer for the menu item.\n */\n get icon() {\n if (this.type === 'command') {\n return this._commands.icon(this.command, this.args);\n }\n if (this.type === 'submenu' && this.submenu) {\n return this.submenu.title.icon;\n }\n return undefined;\n }\n /**\n * The icon class for the menu item.\n */\n get iconClass() {\n if (this.type === 'command') {\n return this._commands.iconClass(this.command, this.args);\n }\n if (this.type === 'submenu' && this.submenu) {\n return this.submenu.title.iconClass;\n }\n return '';\n }\n /**\n * The icon label for the menu item.\n */\n get iconLabel() {\n if (this.type === 'command') {\n return this._commands.iconLabel(this.command, this.args);\n }\n if (this.type === 'submenu' && this.submenu) {\n return this.submenu.title.iconLabel;\n }\n return '';\n }\n /**\n * The display caption for the menu item.\n */\n get caption() {\n if (this.type === 'command') {\n return this._commands.caption(this.command, this.args);\n }\n if (this.type === 'submenu' && this.submenu) {\n return this.submenu.title.caption;\n }\n return '';\n }\n /**\n * The extra class name for the menu item.\n */\n get className() {\n if (this.type === 'command') {\n return this._commands.className(this.command, this.args);\n }\n if (this.type === 'submenu' && this.submenu) {\n return this.submenu.title.className;\n }\n return '';\n }\n /**\n * The dataset for the menu item.\n */\n get dataset() {\n if (this.type === 'command') {\n return this._commands.dataset(this.command, this.args);\n }\n if (this.type === 'submenu' && this.submenu) {\n return this.submenu.title.dataset;\n }\n return {};\n }\n /**\n * Whether the menu item is enabled.\n */\n get isEnabled() {\n if (this.type === 'command') {\n return this._commands.isEnabled(this.command, this.args);\n }\n if (this.type === 'submenu') {\n return this.submenu !== null;\n }\n return true;\n }\n /**\n * Whether the menu item is toggled.\n */\n get isToggled() {\n if (this.type === 'command') {\n return this._commands.isToggled(this.command, this.args);\n }\n return false;\n }\n /**\n * Whether the menu item is visible.\n */\n get isVisible() {\n if (this.type === 'command') {\n return this._commands.isVisible(this.command, this.args);\n }\n if (this.type === 'submenu') {\n return this.submenu !== null;\n }\n return true;\n }\n /**\n * The key binding for the menu item.\n */\n get keyBinding() {\n if (this.type === 'command') {\n let { command, args } = this;\n return (ArrayExt.findLastValue(this._commands.keyBindings, kb => {\n return kb.command === command && JSONExt.deepEqual(kb.args, args);\n }) || null);\n }\n return null;\n }\n }\n})(Private$9 || (Private$9 = {}));\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * An object which implements a universal context menu.\n *\n * #### Notes\n * The items shown in the context menu are determined by CSS selector\n * matching against the DOM hierarchy at the site of the mouse click.\n * This is similar in concept to how keyboard shortcuts are matched\n * in the command registry.\n */\nclass ContextMenu {\n /**\n * Construct a new context menu.\n *\n * @param options - The options for initializing the menu.\n */\n constructor(options) {\n this._groupByTarget = true;\n this._idTick = 0;\n this._items = [];\n this._sortBySelector = true;\n const { groupByTarget, sortBySelector, ...others } = options;\n this.menu = new Menu(others);\n this._groupByTarget = groupByTarget !== false;\n this._sortBySelector = sortBySelector !== false;\n }\n /**\n * Add an item to the context menu.\n *\n * @param options - The options for creating the item.\n *\n * @returns A disposable which will remove the item from the menu.\n */\n addItem(options) {\n // Create an item from the given options.\n let item = Private$8.createItem(options, this._idTick++);\n // Add the item to the internal array.\n this._items.push(item);\n // Return a disposable which will remove the item.\n return new DisposableDelegate(() => {\n ArrayExt.removeFirstOf(this._items, item);\n });\n }\n /**\n * Open the context menu in response to a `'contextmenu'` event.\n *\n * @param event - The `'contextmenu'` event of interest.\n *\n * @returns `true` if the menu was opened, or `false` if no items\n * matched the event and the menu was not opened.\n *\n * #### Notes\n * This method will populate the context menu with items which match\n * the propagation path of the event, then open the menu at the mouse\n * position indicated by the event.\n */\n open(event) {\n // Prior to any DOM modifications update the window data.\n Menu.saveWindowData();\n // Clear the current contents of the context menu.\n this.menu.clearItems();\n // Bail early if there are no items to match.\n if (this._items.length === 0) {\n return false;\n }\n // Find the matching items for the event.\n let items = Private$8.matchItems(this._items, event, this._groupByTarget, this._sortBySelector);\n // Bail if there are no matching items.\n if (!items || items.length === 0) {\n return false;\n }\n // Add the filtered items to the menu.\n for (const item of items) {\n this.menu.addItem(item);\n }\n // Open the context menu at the current mouse position.\n this.menu.open(event.clientX, event.clientY);\n // Indicate success.\n return true;\n }\n}\n/**\n * The namespace for the module implementation details.\n */\nvar Private$8;\n(function (Private) {\n /**\n * Create a normalized context menu item from an options object.\n */\n function createItem(options, id) {\n let selector = validateSelector(options.selector);\n let rank = options.rank !== undefined ? options.rank : Infinity;\n return { ...options, selector, rank, id };\n }\n Private.createItem = createItem;\n /**\n * Find the items which match a context menu event.\n *\n * The results are sorted by DOM level, specificity, and rank.\n */\n function matchItems(items, event, groupByTarget, sortBySelector) {\n // Look up the target of the event.\n let target = event.target;\n // Bail if there is no target.\n if (!target) {\n return null;\n }\n // Look up the current target of the event.\n let currentTarget = event.currentTarget;\n // Bail if there is no current target.\n if (!currentTarget) {\n return null;\n }\n // There are some third party libraries that cause the `target` to\n // be detached from the DOM before lumino can process the event.\n // If that happens, search for a new target node by point. If that\n // node is still dangling, bail.\n if (!currentTarget.contains(target)) {\n target = document.elementFromPoint(event.clientX, event.clientY);\n if (!target || !currentTarget.contains(target)) {\n return null;\n }\n }\n // Set up the result array.\n let result = [];\n // Copy the items array to allow in-place modification.\n let availableItems = items.slice();\n // Walk up the DOM hierarchy searching for matches.\n while (target !== null) {\n // Set up the match array for this DOM level.\n let matches = [];\n // Search the remaining items for matches.\n for (let i = 0, n = availableItems.length; i < n; ++i) {\n // Fetch the item.\n let item = availableItems[i];\n // Skip items which are already consumed.\n if (!item) {\n continue;\n }\n // Skip items which do not match the element.\n if (!Selector.matches(target, item.selector)) {\n continue;\n }\n // Add the matched item to the result for this DOM level.\n matches.push(item);\n // Mark the item as consumed.\n availableItems[i] = null;\n }\n // Sort the matches for this level and add them to the results.\n if (matches.length !== 0) {\n if (groupByTarget) {\n matches.sort(sortBySelector ? itemCmp : itemCmpRank);\n }\n result.push(...matches);\n }\n // Stop searching at the limits of the DOM range.\n if (target === currentTarget) {\n break;\n }\n // Step to the parent DOM level.\n target = target.parentElement;\n }\n if (!groupByTarget) {\n result.sort(sortBySelector ? itemCmp : itemCmpRank);\n }\n // Return the matched and sorted results.\n return result;\n }\n Private.matchItems = matchItems;\n /**\n * Validate the selector for a menu item.\n *\n * This returns the validated selector, or throws if the selector is\n * invalid or contains commas.\n */\n function validateSelector(selector) {\n if (selector.indexOf(',') !== -1) {\n throw new Error(`Selector cannot contain commas: ${selector}`);\n }\n if (!Selector.isValid(selector)) {\n throw new Error(`Invalid selector: ${selector}`);\n }\n return selector;\n }\n /**\n * A sort comparison function for a context menu item by ranks.\n */\n function itemCmpRank(a, b) {\n // Sort based on rank.\n let r1 = a.rank;\n let r2 = b.rank;\n if (r1 !== r2) {\n return r1 < r2 ? -1 : 1; // Infinity-safe\n }\n // When all else fails, sort by item id.\n return a.id - b.id;\n }\n /**\n * A sort comparison function for a context menu item by selectors and ranks.\n */\n function itemCmp(a, b) {\n // Sort first based on selector specificity.\n let s1 = Selector.calculateSpecificity(a.selector);\n let s2 = Selector.calculateSpecificity(b.selector);\n if (s1 !== s2) {\n return s2 - s1;\n }\n // If specificities are equal\n return itemCmpRank(a, b);\n }\n})(Private$8 || (Private$8 = {}));\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\nconst ARROW_KEYS = [\n 'ArrowLeft',\n 'ArrowUp',\n 'ArrowRight',\n 'ArrowDown',\n 'Home',\n 'End'\n];\n/**\n * A widget which displays titles as a single row or column of tabs.\n *\n * #### Notes\n * If CSS transforms are used to rotate nodes for vertically oriented\n * text, then tab dragging will not work correctly. The `tabsMovable`\n * property should be set to `false` when rotating nodes from CSS.\n */\nclass TabBar extends Widget {\n /**\n * Construct a new tab bar.\n *\n * @param options - The options for initializing the tab bar.\n */\n constructor(options = {}) {\n super({ node: Private$7.createNode() });\n this._currentIndex = -1;\n this._titles = [];\n this._titlesEditable = false;\n this._previousTitle = null;\n this._dragData = null;\n this._addButtonEnabled = false;\n this._tabMoved = new Signal(this);\n this._currentChanged = new Signal(this);\n this._addRequested = new Signal(this);\n this._tabCloseRequested = new Signal(this);\n this._tabDetachRequested = new Signal(this);\n this._tabActivateRequested = new Signal(this);\n this.addClass('lm-TabBar');\n this.contentNode.setAttribute('role', 'tablist');\n this.setFlag(Widget.Flag.DisallowLayout);\n this._document = options.document || document;\n this.tabsMovable = options.tabsMovable || false;\n this.titlesEditable = options.titlesEditable || false;\n this.allowDeselect = options.allowDeselect || false;\n this.addButtonEnabled = options.addButtonEnabled || false;\n this.insertBehavior = options.insertBehavior || 'select-tab-if-needed';\n this.name = options.name || '';\n this.orientation = options.orientation || 'horizontal';\n this.removeBehavior = options.removeBehavior || 'select-tab-after';\n this.renderer = options.renderer || TabBar.defaultRenderer;\n }\n /**\n * Dispose of the resources held by the widget.\n */\n dispose() {\n this._releaseMouse();\n this._titles.length = 0;\n this._previousTitle = null;\n super.dispose();\n }\n /**\n * A signal emitted when the current tab is changed.\n *\n * #### Notes\n * This signal is emitted when the currently selected tab is changed\n * either through user or programmatic interaction.\n *\n * Notably, this signal is not emitted when the index of the current\n * tab changes due to tabs being inserted, removed, or moved. It is\n * only emitted when the actual current tab node is changed.\n */\n get currentChanged() {\n return this._currentChanged;\n }\n /**\n * A signal emitted when a tab is moved by the user.\n *\n * #### Notes\n * This signal is emitted when a tab is moved by user interaction.\n *\n * This signal is not emitted when a tab is moved programmatically.\n */\n get tabMoved() {\n return this._tabMoved;\n }\n /**\n * A signal emitted when a tab is clicked by the user.\n *\n * #### Notes\n * If the clicked tab is not the current tab, the clicked tab will be\n * made current and the `currentChanged` signal will be emitted first.\n *\n * This signal is emitted even if the clicked tab is the current tab.\n */\n get tabActivateRequested() {\n return this._tabActivateRequested;\n }\n /**\n * A signal emitted when the tab bar add button is clicked.\n */\n get addRequested() {\n return this._addRequested;\n }\n /**\n * A signal emitted when a tab close icon is clicked.\n *\n * #### Notes\n * This signal is not emitted unless the tab title is `closable`.\n */\n get tabCloseRequested() {\n return this._tabCloseRequested;\n }\n /**\n * A signal emitted when a tab is dragged beyond the detach threshold.\n *\n * #### Notes\n * This signal is emitted when the user drags a tab with the mouse,\n * and mouse is dragged beyond the detach threshold.\n *\n * The consumer of the signal should call `releaseMouse` and remove\n * the tab in order to complete the detach.\n *\n * This signal is only emitted once per drag cycle.\n */\n get tabDetachRequested() {\n return this._tabDetachRequested;\n }\n /**\n * The document to use with the tab bar.\n *\n * The default is the global `document` instance.\n */\n get document() {\n return this._document;\n }\n /**\n * Whether the titles can be user-edited.\n *\n */\n get titlesEditable() {\n return this._titlesEditable;\n }\n /**\n * Set whether titles can be user edited.\n *\n */\n set titlesEditable(value) {\n this._titlesEditable = value;\n }\n /**\n * Get the currently selected title.\n *\n * #### Notes\n * This will be `null` if no tab is selected.\n */\n get currentTitle() {\n return this._titles[this._currentIndex] || null;\n }\n /**\n * Set the currently selected title.\n *\n * #### Notes\n * If the title does not exist, the title will be set to `null`.\n */\n set currentTitle(value) {\n this.currentIndex = value ? this._titles.indexOf(value) : -1;\n }\n /**\n * Get the index of the currently selected tab.\n *\n * #### Notes\n * This will be `-1` if no tab is selected.\n */\n get currentIndex() {\n return this._currentIndex;\n }\n /**\n * Set the index of the currently selected tab.\n *\n * #### Notes\n * If the value is out of range, the index will be set to `-1`.\n */\n set currentIndex(value) {\n // Adjust for an out of range index.\n if (value < 0 || value >= this._titles.length) {\n value = -1;\n }\n // Bail early if the index will not change.\n if (this._currentIndex === value) {\n return;\n }\n // Look up the previous index and title.\n let pi = this._currentIndex;\n let pt = this._titles[pi] || null;\n // Look up the current index and title.\n let ci = value;\n let ct = this._titles[ci] || null;\n // Update the current index and previous title.\n this._currentIndex = ci;\n this._previousTitle = pt;\n // Schedule an update of the tabs.\n this.update();\n // Emit the current changed signal.\n this._currentChanged.emit({\n previousIndex: pi,\n previousTitle: pt,\n currentIndex: ci,\n currentTitle: ct\n });\n }\n /**\n * Get the name of the tab bar.\n */\n get name() {\n return this._name;\n }\n /**\n * Set the name of the tab bar.\n */\n set name(value) {\n this._name = value;\n if (value) {\n this.contentNode.setAttribute('aria-label', value);\n }\n else {\n this.contentNode.removeAttribute('aria-label');\n }\n }\n /**\n * Get the orientation of the tab bar.\n *\n * #### Notes\n * This controls whether the tabs are arranged in a row or column.\n */\n get orientation() {\n return this._orientation;\n }\n /**\n * Set the orientation of the tab bar.\n *\n * #### Notes\n * This controls whether the tabs are arranged in a row or column.\n */\n set orientation(value) {\n // Do nothing if the orientation does not change.\n if (this._orientation === value) {\n return;\n }\n // Release the mouse before making any changes.\n this._releaseMouse();\n // Toggle the orientation values.\n this._orientation = value;\n this.dataset['orientation'] = value;\n this.contentNode.setAttribute('aria-orientation', value);\n }\n /**\n * Whether the add button is enabled.\n */\n get addButtonEnabled() {\n return this._addButtonEnabled;\n }\n /**\n * Set whether the add button is enabled.\n */\n set addButtonEnabled(value) {\n // Do nothing if the value does not change.\n if (this._addButtonEnabled === value) {\n return;\n }\n this._addButtonEnabled = value;\n if (value) {\n this.addButtonNode.classList.remove('lm-mod-hidden');\n }\n else {\n this.addButtonNode.classList.add('lm-mod-hidden');\n }\n }\n /**\n * A read-only array of the titles in the tab bar.\n */\n get titles() {\n return this._titles;\n }\n /**\n * The tab bar content node.\n *\n * #### Notes\n * This is the node which holds the tab nodes.\n *\n * Modifying this node directly can lead to undefined behavior.\n */\n get contentNode() {\n return this.node.getElementsByClassName('lm-TabBar-content')[0];\n }\n /**\n * The tab bar add button node.\n *\n * #### Notes\n * This is the node which holds the add button.\n *\n * Modifying this node directly can lead to undefined behavior.\n */\n get addButtonNode() {\n return this.node.getElementsByClassName('lm-TabBar-addButton')[0];\n }\n /**\n * Add a tab to the end of the tab bar.\n *\n * @param value - The title which holds the data for the tab,\n * or an options object to convert to a title.\n *\n * @returns The title object added to the tab bar.\n *\n * #### Notes\n * If the title is already added to the tab bar, it will be moved.\n */\n addTab(value) {\n return this.insertTab(this._titles.length, value);\n }\n /**\n * Insert a tab into the tab bar at the specified index.\n *\n * @param index - The index at which to insert the tab.\n *\n * @param value - The title which holds the data for the tab,\n * or an options object to convert to a title.\n *\n * @returns The title object added to the tab bar.\n *\n * #### Notes\n * The index will be clamped to the bounds of the tabs.\n *\n * If the title is already added to the tab bar, it will be moved.\n */\n insertTab(index, value) {\n // Release the mouse before making any changes.\n this._releaseMouse();\n // Coerce the value to a title.\n let title = Private$7.asTitle(value);\n // Look up the index of the title.\n let i = this._titles.indexOf(title);\n // Clamp the insert index to the array bounds.\n let j = Math.max(0, Math.min(index, this._titles.length));\n // If the title is not in the array, insert it.\n if (i === -1) {\n // Insert the title into the array.\n ArrayExt.insert(this._titles, j, title);\n // Connect to the title changed signal.\n title.changed.connect(this._onTitleChanged, this);\n // Schedule an update of the tabs.\n this.update();\n // Adjust the current index for the insert.\n this._adjustCurrentForInsert(j, title);\n // Return the title added to the tab bar.\n return title;\n }\n // Otherwise, the title exists in the array and should be moved.\n // Adjust the index if the location is at the end of the array.\n if (j === this._titles.length) {\n j--;\n }\n // Bail if there is no effective move.\n if (i === j) {\n return title;\n }\n // Move the title to the new location.\n ArrayExt.move(this._titles, i, j);\n // Schedule an update of the tabs.\n this.update();\n // Adjust the current index for the move.\n this._adjustCurrentForMove(i, j);\n // Return the title added to the tab bar.\n return title;\n }\n /**\n * Remove a tab from the tab bar.\n *\n * @param title - The title for the tab to remove.\n *\n * #### Notes\n * This is a no-op if the title is not in the tab bar.\n */\n removeTab(title) {\n this.removeTabAt(this._titles.indexOf(title));\n }\n /**\n * Remove the tab at a given index from the tab bar.\n *\n * @param index - The index of the tab to remove.\n *\n * #### Notes\n * This is a no-op if the index is out of range.\n */\n removeTabAt(index) {\n // Release the mouse before making any changes.\n this._releaseMouse();\n // Remove the title from the array.\n let title = ArrayExt.removeAt(this._titles, index);\n // Bail if the index is out of range.\n if (!title) {\n return;\n }\n // Disconnect from the title changed signal.\n title.changed.disconnect(this._onTitleChanged, this);\n // Clear the previous title if it's being removed.\n if (title === this._previousTitle) {\n this._previousTitle = null;\n }\n // Schedule an update of the tabs.\n this.update();\n // Adjust the current index for the remove.\n this._adjustCurrentForRemove(index, title);\n }\n /**\n * Remove all tabs from the tab bar.\n */\n clearTabs() {\n // Bail if there is nothing to remove.\n if (this._titles.length === 0) {\n return;\n }\n // Release the mouse before making any changes.\n this._releaseMouse();\n // Disconnect from the title changed signals.\n for (let title of this._titles) {\n title.changed.disconnect(this._onTitleChanged, this);\n }\n // Get the current index and title.\n let pi = this.currentIndex;\n let pt = this.currentTitle;\n // Reset the current index and previous title.\n this._currentIndex = -1;\n this._previousTitle = null;\n // Clear the title array.\n this._titles.length = 0;\n // Schedule an update of the tabs.\n this.update();\n // If no tab was selected, there's nothing else to do.\n if (pi === -1) {\n return;\n }\n // Emit the current changed signal.\n this._currentChanged.emit({\n previousIndex: pi,\n previousTitle: pt,\n currentIndex: -1,\n currentTitle: null\n });\n }\n /**\n * Release the mouse and restore the non-dragged tab positions.\n *\n * #### Notes\n * This will cause the tab bar to stop handling mouse events and to\n * restore the tabs to their non-dragged positions.\n */\n releaseMouse() {\n this._releaseMouse();\n }\n /**\n * Handle the DOM events for the tab bar.\n *\n * @param event - The DOM event sent to the tab bar.\n *\n * #### Notes\n * This method implements the DOM `EventListener` interface and is\n * called in response to events on the tab bar's DOM node.\n *\n * This should not be called directly by user code.\n */\n handleEvent(event) {\n switch (event.type) {\n case 'pointerdown':\n this._evtPointerDown(event);\n break;\n case 'pointermove':\n this._evtPointerMove(event);\n break;\n case 'pointerup':\n this._evtPointerUp(event);\n break;\n case 'dblclick':\n this._evtDblClick(event);\n break;\n case 'keydown':\n event.eventPhase === Event.CAPTURING_PHASE\n ? this._evtKeyDownCapturing(event)\n : this._evtKeyDown(event);\n break;\n case 'contextmenu':\n event.preventDefault();\n event.stopPropagation();\n break;\n }\n }\n /**\n * A message handler invoked on a `'before-attach'` message.\n */\n onBeforeAttach(msg) {\n this.node.addEventListener('pointerdown', this);\n this.node.addEventListener('dblclick', this);\n this.node.addEventListener('keydown', this);\n }\n /**\n * A message handler invoked on an `'after-detach'` message.\n */\n onAfterDetach(msg) {\n this.node.removeEventListener('pointerdown', this);\n this.node.removeEventListener('dblclick', this);\n this.node.removeEventListener('keydown', this);\n this._releaseMouse();\n }\n /**\n * A message handler invoked on an `'update-request'` message.\n */\n onUpdateRequest(msg) {\n var _a;\n let titles = this._titles;\n let renderer = this.renderer;\n let currentTitle = this.currentTitle;\n let content = new Array(titles.length);\n // Keep the tabindex=\"0\" attribute to the tab which handled it before the update.\n // If the add button handles it, no need to do anything. If no element of the tab\n // bar handles it, set it on the current or the first tab to ensure one element\n // handles it after update.\n const tabHandlingTabindex = (_a = this._getCurrentTabindex()) !== null && _a !== void 0 ? _a : (this._currentIndex > -1 ? this._currentIndex : 0);\n for (let i = 0, n = titles.length; i < n; ++i) {\n let title = titles[i];\n let current = title === currentTitle;\n let zIndex = current ? n : n - i - 1;\n let tabIndex = tabHandlingTabindex === i ? 0 : -1;\n content[i] = renderer.renderTab({ title, current, zIndex, tabIndex });\n }\n VirtualDOM.render(content, this.contentNode);\n }\n /**\n * Get the index of the tab which handles tabindex=\"0\".\n * If the add button handles tabindex=\"0\", -1 is returned.\n * If none of the previous handles tabindex=\"0\", null is returned.\n */\n _getCurrentTabindex() {\n let index = null;\n const elemTabindex = this.contentNode.querySelector('li[tabindex=\"0\"]');\n if (elemTabindex) {\n index = [...this.contentNode.children].indexOf(elemTabindex);\n }\n else if (this._addButtonEnabled &&\n this.addButtonNode.getAttribute('tabindex') === '0') {\n index = -1;\n }\n return index;\n }\n /**\n * Handle the `'dblclick'` event for the tab bar.\n */\n _evtDblClick(event) {\n // Do nothing if titles are not editable\n if (!this.titlesEditable) {\n return;\n }\n let tabs = this.contentNode.children;\n // Find the index of the targeted tab.\n let index = ArrayExt.findFirstIndex(tabs, tab => {\n return ElementExt.hitTest(tab, event.clientX, event.clientY);\n });\n // Do nothing if the press is not on a tab.\n if (index === -1) {\n return;\n }\n let title = this.titles[index];\n let label = tabs[index].querySelector('.lm-TabBar-tabLabel');\n if (label && label.contains(event.target)) {\n let value = title.label || '';\n // Clear the label element\n let oldValue = label.innerHTML;\n label.innerHTML = '';\n let input = document.createElement('input');\n input.classList.add('lm-TabBar-tabInput');\n input.value = value;\n label.appendChild(input);\n let onblur = () => {\n input.removeEventListener('blur', onblur);\n label.innerHTML = oldValue;\n this.node.addEventListener('keydown', this);\n };\n input.addEventListener('dblclick', (event) => event.stopPropagation());\n input.addEventListener('blur', onblur);\n input.addEventListener('keydown', (event) => {\n if (event.key === 'Enter') {\n if (input.value !== '') {\n title.label = title.caption = input.value;\n }\n onblur();\n }\n else if (event.key === 'Escape') {\n onblur();\n }\n });\n this.node.removeEventListener('keydown', this);\n input.select();\n input.focus();\n if (label.children.length > 0) {\n label.children[0].focus();\n }\n }\n }\n /**\n * Handle the `'keydown'` event for the tab bar at capturing phase.\n */\n _evtKeyDownCapturing(event) {\n if (event.eventPhase !== Event.CAPTURING_PHASE) {\n return;\n }\n // Stop all input events during drag.\n event.preventDefault();\n event.stopPropagation();\n // Release the mouse if `Escape` is pressed.\n if (event.key === 'Escape') {\n this._releaseMouse();\n }\n }\n /**\n * Handle the `'keydown'` event for the tab bar at target phase.\n */\n _evtKeyDown(event) {\n var _a, _b, _c;\n // Allow for navigation using tab key\n if (event.key === 'Tab' || event.eventPhase === Event.CAPTURING_PHASE) {\n return;\n }\n // Check if Enter or Spacebar key has been pressed and open that tab\n if (event.key === 'Enter' ||\n event.key === 'Spacebar' ||\n event.key === ' ') {\n // Get focus element that is in focus by the tab key\n const focusedElement = document.activeElement;\n // Test first if the focus is on the add button node\n if (this.addButtonEnabled &&\n this.addButtonNode.contains(focusedElement)) {\n event.preventDefault();\n event.stopPropagation();\n this._addRequested.emit();\n }\n else {\n const index = ArrayExt.findFirstIndex(this.contentNode.children, tab => tab.contains(focusedElement));\n if (index >= 0) {\n event.preventDefault();\n event.stopPropagation();\n this.currentIndex = index;\n }\n }\n // Handle the arrow keys to switch tabs.\n }\n else if (ARROW_KEYS.includes(event.key)) {\n // Create a list of all focusable elements in the tab bar.\n const focusable = [...this.contentNode.children];\n if (this.addButtonEnabled) {\n focusable.push(this.addButtonNode);\n }\n // If the tab bar contains only one element, nothing to do.\n if (focusable.length <= 1) {\n return;\n }\n event.preventDefault();\n event.stopPropagation();\n // Get the current focused element.\n let focusedIndex = focusable.indexOf(document.activeElement);\n if (focusedIndex === -1) {\n focusedIndex = this._currentIndex;\n }\n // Find the next element to focus on.\n let nextFocused;\n if ((event.key === 'ArrowRight' && this._orientation === 'horizontal') ||\n (event.key === 'ArrowDown' && this._orientation === 'vertical')) {\n nextFocused = (_a = focusable[focusedIndex + 1]) !== null && _a !== void 0 ? _a : focusable[0];\n }\n else if ((event.key === 'ArrowLeft' && this._orientation === 'horizontal') ||\n (event.key === 'ArrowUp' && this._orientation === 'vertical')) {\n nextFocused =\n (_b = focusable[focusedIndex - 1]) !== null && _b !== void 0 ? _b : focusable[focusable.length - 1];\n }\n else if (event.key === 'Home') {\n nextFocused = focusable[0];\n }\n else if (event.key === 'End') {\n nextFocused = focusable[focusable.length - 1];\n }\n // Change the focused element and the tabindex value.\n if (nextFocused) {\n (_c = focusable[focusedIndex]) === null || _c === void 0 ? void 0 : _c.setAttribute('tabindex', '-1');\n nextFocused === null || nextFocused === void 0 ? void 0 : nextFocused.setAttribute('tabindex', '0');\n nextFocused.focus();\n }\n }\n }\n /**\n * Handle the `'pointerdown'` event for the tab bar.\n */\n _evtPointerDown(event) {\n // Do nothing if it's not a left or middle mouse press.\n if (event.button !== 0 && event.button !== 1) {\n return;\n }\n // Do nothing if a drag is in progress.\n if (this._dragData) {\n return;\n }\n // Do nothing if a title editable input was clicked.\n if (event.target.classList.contains('lm-TabBar-tabInput')) {\n return;\n }\n // Check if the add button was clicked.\n let addButtonClicked = this.addButtonEnabled &&\n this.addButtonNode.contains(event.target);\n // Lookup the tab nodes.\n let tabs = this.contentNode.children;\n // Find the index of the pressed tab.\n let index = ArrayExt.findFirstIndex(tabs, tab => {\n return ElementExt.hitTest(tab, event.clientX, event.clientY);\n });\n // Do nothing if the press is not on a tab or the add button.\n if (index === -1 && !addButtonClicked) {\n return;\n }\n // Pressing on a tab stops the event propagation.\n event.preventDefault();\n event.stopPropagation();\n // Initialize the non-measured parts of the drag data.\n this._dragData = {\n tab: tabs[index],\n index: index,\n pressX: event.clientX,\n pressY: event.clientY,\n tabPos: -1,\n tabSize: -1,\n tabPressPos: -1,\n targetIndex: -1,\n tabLayout: null,\n contentRect: null,\n override: null,\n dragActive: false,\n dragAborted: false,\n detachRequested: false\n };\n // Add the document pointer up listener.\n this.document.addEventListener('pointerup', this, true);\n // Do nothing else if the middle button or add button is clicked.\n if (event.button === 1 || addButtonClicked) {\n return;\n }\n // Do nothing else if the close icon is clicked.\n let icon = tabs[index].querySelector(this.renderer.closeIconSelector);\n if (icon && icon.contains(event.target)) {\n return;\n }\n // Add the extra listeners if the tabs are movable.\n if (this.tabsMovable) {\n this.document.addEventListener('pointermove', this, true);\n this.document.addEventListener('keydown', this, true);\n this.document.addEventListener('contextmenu', this, true);\n }\n // Update the current index as appropriate.\n if (this.allowDeselect && this.currentIndex === index) {\n this.currentIndex = -1;\n }\n else {\n this.currentIndex = index;\n }\n // Do nothing else if there is no current tab.\n if (this.currentIndex === -1) {\n return;\n }\n // Emit the tab activate request signal.\n this._tabActivateRequested.emit({\n index: this.currentIndex,\n title: this.currentTitle\n });\n }\n /**\n * Handle the `'pointermove'` event for the tab bar.\n */\n _evtPointerMove(event) {\n // Do nothing if no drag is in progress.\n let data = this._dragData;\n if (!data) {\n return;\n }\n // Suppress the event during a drag.\n event.preventDefault();\n event.stopPropagation();\n // Lookup the tab nodes.\n let tabs = this.contentNode.children;\n // Bail early if the drag threshold has not been met.\n if (!data.dragActive && !Private$7.dragExceeded(data, event)) {\n return;\n }\n // Activate the drag if necessary.\n if (!data.dragActive) {\n // Fill in the rest of the drag data measurements.\n let tabRect = data.tab.getBoundingClientRect();\n if (this._orientation === 'horizontal') {\n data.tabPos = data.tab.offsetLeft;\n data.tabSize = tabRect.width;\n data.tabPressPos = data.pressX - tabRect.left;\n }\n else {\n data.tabPos = data.tab.offsetTop;\n data.tabSize = tabRect.height;\n data.tabPressPos = data.pressY - tabRect.top;\n }\n data.tabPressOffset = {\n x: data.pressX - tabRect.left,\n y: data.pressY - tabRect.top\n };\n data.tabLayout = Private$7.snapTabLayout(tabs, this._orientation);\n data.contentRect = this.contentNode.getBoundingClientRect();\n data.override = Drag.overrideCursor('default');\n // Add the dragging style classes.\n data.tab.classList.add('lm-mod-dragging');\n this.addClass('lm-mod-dragging');\n // Mark the drag as active.\n data.dragActive = true;\n }\n // Emit the detach requested signal if the threshold is exceeded.\n if (!data.detachRequested && Private$7.detachExceeded(data, event)) {\n // Only emit the signal once per drag cycle.\n data.detachRequested = true;\n // Setup the arguments for the signal.\n let index = data.index;\n let clientX = event.clientX;\n let clientY = event.clientY;\n let tab = tabs[index];\n let title = this._titles[index];\n // Emit the tab detach requested signal.\n this._tabDetachRequested.emit({\n index,\n title,\n tab,\n clientX,\n clientY,\n offset: data.tabPressOffset\n });\n // Bail if the signal handler aborted the drag.\n if (data.dragAborted) {\n return;\n }\n }\n // Update the positions of the tabs.\n Private$7.layoutTabs(tabs, data, event, this._orientation);\n }\n /**\n * Handle the `'pointerup'` event for the document.\n */\n _evtPointerUp(event) {\n // Do nothing if it's not a left or middle mouse release.\n if (event.button !== 0 && event.button !== 1) {\n return;\n }\n // Do nothing if no drag is in progress.\n const data = this._dragData;\n if (!data) {\n return;\n }\n // Stop the event propagation.\n event.preventDefault();\n event.stopPropagation();\n // Remove the extra mouse event listeners.\n this.document.removeEventListener('pointermove', this, true);\n this.document.removeEventListener('pointerup', this, true);\n this.document.removeEventListener('keydown', this, true);\n this.document.removeEventListener('contextmenu', this, true);\n // Handle a release when the drag is not active.\n if (!data.dragActive) {\n // Clear the drag data.\n this._dragData = null;\n // Handle clicking the add button.\n let addButtonClicked = this.addButtonEnabled &&\n this.addButtonNode.contains(event.target);\n if (addButtonClicked) {\n this._addRequested.emit(undefined);\n return;\n }\n // Lookup the tab nodes.\n let tabs = this.contentNode.children;\n // Find the index of the released tab.\n let index = ArrayExt.findFirstIndex(tabs, tab => {\n return ElementExt.hitTest(tab, event.clientX, event.clientY);\n });\n // Do nothing if the release is not on the original pressed tab.\n if (index !== data.index) {\n return;\n }\n // Ignore the release if the title is not closable.\n let title = this._titles[index];\n if (!title.closable) {\n return;\n }\n // Emit the close requested signal if the middle button is released.\n if (event.button === 1) {\n this._tabCloseRequested.emit({ index, title });\n return;\n }\n // Emit the close requested signal if the close icon was released.\n let icon = tabs[index].querySelector(this.renderer.closeIconSelector);\n if (icon && icon.contains(event.target)) {\n this._tabCloseRequested.emit({ index, title });\n return;\n }\n // Otherwise, there is nothing left to do.\n return;\n }\n // Do nothing if the left button is not released.\n if (event.button !== 0) {\n return;\n }\n // Position the tab at its final resting position.\n Private$7.finalizeTabPosition(data, this._orientation);\n // Remove the dragging class from the tab so it can be transitioned.\n data.tab.classList.remove('lm-mod-dragging');\n // Parse the transition duration for releasing the tab.\n let duration = Private$7.parseTransitionDuration(data.tab);\n // Complete the release on a timer to allow the tab to transition.\n setTimeout(() => {\n // Do nothing if the drag has been aborted.\n if (data.dragAborted) {\n return;\n }\n // Clear the drag data reference.\n this._dragData = null;\n // Reset the positions of the tabs.\n Private$7.resetTabPositions(this.contentNode.children, this._orientation);\n // Clear the cursor grab.\n data.override.dispose();\n // Remove the remaining dragging style.\n this.removeClass('lm-mod-dragging');\n // If the tab was not moved, there is nothing else to do.\n let i = data.index;\n let j = data.targetIndex;\n if (j === -1 || i === j) {\n return;\n }\n // Move the title to the new locations.\n ArrayExt.move(this._titles, i, j);\n // Adjust the current index for the move.\n this._adjustCurrentForMove(i, j);\n // Emit the tab moved signal.\n this._tabMoved.emit({\n fromIndex: i,\n toIndex: j,\n title: this._titles[j]\n });\n // Update the tabs immediately to prevent flicker.\n MessageLoop.sendMessage(this, Widget.Msg.UpdateRequest);\n }, duration);\n }\n /**\n * Release the mouse and restore the non-dragged tab positions.\n */\n _releaseMouse() {\n // Do nothing if no drag is in progress.\n let data = this._dragData;\n if (!data) {\n return;\n }\n // Clear the drag data reference.\n this._dragData = null;\n // Remove the extra document event listeners.\n this.document.removeEventListener('pointermove', this, true);\n this.document.removeEventListener('pointerup', this, true);\n this.document.removeEventListener('keydown', this, true);\n this.document.removeEventListener('contextmenu', this, true);\n // Indicate the drag has been aborted. This allows the mouse\n // event handlers to return early when the drag is canceled.\n data.dragAborted = true;\n // If the drag is not active, there's nothing more to do.\n if (!data.dragActive) {\n return;\n }\n // Reset the tabs to their non-dragged positions.\n Private$7.resetTabPositions(this.contentNode.children, this._orientation);\n // Clear the cursor override.\n data.override.dispose();\n // Clear the dragging style classes.\n data.tab.classList.remove('lm-mod-dragging');\n this.removeClass('lm-mod-dragging');\n }\n /**\n * Adjust the current index for a tab insert operation.\n *\n * This method accounts for the tab bar's insertion behavior when\n * adjusting the current index and emitting the changed signal.\n */\n _adjustCurrentForInsert(i, title) {\n // Lookup commonly used variables.\n let ct = this.currentTitle;\n let ci = this._currentIndex;\n let bh = this.insertBehavior;\n // TODO: do we need to do an update to update the aria-selected attribute?\n // Handle the behavior where the new tab is always selected,\n // or the behavior where the new tab is selected if needed.\n if (bh === 'select-tab' || (bh === 'select-tab-if-needed' && ci === -1)) {\n this._currentIndex = i;\n this._previousTitle = ct;\n this._currentChanged.emit({\n previousIndex: ci,\n previousTitle: ct,\n currentIndex: i,\n currentTitle: title\n });\n return;\n }\n // Otherwise, silently adjust the current index if needed.\n if (ci >= i) {\n this._currentIndex++;\n }\n }\n /**\n * Adjust the current index for a tab move operation.\n *\n * This method will not cause the actual current tab to change.\n * It silently adjusts the index to account for the given move.\n */\n _adjustCurrentForMove(i, j) {\n if (this._currentIndex === i) {\n this._currentIndex = j;\n }\n else if (this._currentIndex < i && this._currentIndex >= j) {\n this._currentIndex++;\n }\n else if (this._currentIndex > i && this._currentIndex <= j) {\n this._currentIndex--;\n }\n }\n /**\n * Adjust the current index for a tab remove operation.\n *\n * This method accounts for the tab bar's remove behavior when\n * adjusting the current index and emitting the changed signal.\n */\n _adjustCurrentForRemove(i, title) {\n // Lookup commonly used variables.\n let ci = this._currentIndex;\n let bh = this.removeBehavior;\n // Silently adjust the index if the current tab is not removed.\n if (ci !== i) {\n if (ci > i) {\n this._currentIndex--;\n }\n return;\n }\n // TODO: do we need to do an update to adjust the aria-selected value?\n // No tab gets selected if the tab bar is empty.\n if (this._titles.length === 0) {\n this._currentIndex = -1;\n this._currentChanged.emit({\n previousIndex: i,\n previousTitle: title,\n currentIndex: -1,\n currentTitle: null\n });\n return;\n }\n // Handle behavior where the next sibling tab is selected.\n if (bh === 'select-tab-after') {\n this._currentIndex = Math.min(i, this._titles.length - 1);\n this._currentChanged.emit({\n previousIndex: i,\n previousTitle: title,\n currentIndex: this._currentIndex,\n currentTitle: this.currentTitle\n });\n return;\n }\n // Handle behavior where the previous sibling tab is selected.\n if (bh === 'select-tab-before') {\n this._currentIndex = Math.max(0, i - 1);\n this._currentChanged.emit({\n previousIndex: i,\n previousTitle: title,\n currentIndex: this._currentIndex,\n currentTitle: this.currentTitle\n });\n return;\n }\n // Handle behavior where the previous history tab is selected.\n if (bh === 'select-previous-tab') {\n if (this._previousTitle) {\n this._currentIndex = this._titles.indexOf(this._previousTitle);\n this._previousTitle = null;\n }\n else {\n this._currentIndex = Math.min(i, this._titles.length - 1);\n }\n this._currentChanged.emit({\n previousIndex: i,\n previousTitle: title,\n currentIndex: this._currentIndex,\n currentTitle: this.currentTitle\n });\n return;\n }\n // Otherwise, no tab gets selected.\n this._currentIndex = -1;\n this._currentChanged.emit({\n previousIndex: i,\n previousTitle: title,\n currentIndex: -1,\n currentTitle: null\n });\n }\n /**\n * Handle the `changed` signal of a title object.\n */\n _onTitleChanged(sender) {\n this.update();\n }\n}\n/**\n * The namespace for the `TabBar` class statics.\n */\n(function (TabBar) {\n /**\n * The default implementation of `IRenderer`.\n *\n * #### Notes\n * Subclasses are free to reimplement rendering methods as needed.\n */\n class Renderer {\n constructor() {\n /**\n * A selector which matches the close icon node in a tab.\n */\n this.closeIconSelector = '.lm-TabBar-tabCloseIcon';\n this._tabID = 0;\n this._tabKeys = new WeakMap();\n this._uuid = ++Renderer._nInstance;\n }\n /**\n * Render the virtual element for a tab.\n *\n * @param data - The data to use for rendering the tab.\n *\n * @returns A virtual element representing the tab.\n */\n renderTab(data) {\n let title = data.title.caption;\n let key = this.createTabKey(data);\n let id = key;\n let style = this.createTabStyle(data);\n let className = this.createTabClass(data);\n let dataset = this.createTabDataset(data);\n let aria = this.createTabARIA(data);\n if (data.title.closable) {\n return h.li({ id, key, className, title, style, dataset, ...aria }, this.renderIcon(data), this.renderLabel(data), this.renderCloseIcon(data));\n }\n else {\n return h.li({ id, key, className, title, style, dataset, ...aria }, this.renderIcon(data), this.renderLabel(data));\n }\n }\n /**\n * Render the icon element for a tab.\n *\n * @param data - The data to use for rendering the tab.\n *\n * @returns A virtual element representing the tab icon.\n */\n renderIcon(data) {\n const { title } = data;\n let className = this.createIconClass(data);\n // If title.icon is undefined, it will be ignored.\n return h.div({ className }, title.icon, title.iconLabel);\n }\n /**\n * Render the label element for a tab.\n *\n * @param data - The data to use for rendering the tab.\n *\n * @returns A virtual element representing the tab label.\n */\n renderLabel(data) {\n return h.div({ className: 'lm-TabBar-tabLabel' }, data.title.label);\n }\n /**\n * Render the close icon element for a tab.\n *\n * @param data - The data to use for rendering the tab.\n *\n * @returns A virtual element representing the tab close icon.\n */\n renderCloseIcon(data) {\n return h.div({ className: 'lm-TabBar-tabCloseIcon' });\n }\n /**\n * Create a unique render key for the tab.\n *\n * @param data - The data to use for the tab.\n *\n * @returns The unique render key for the tab.\n *\n * #### Notes\n * This method caches the key against the tab title the first time\n * the key is generated. This enables efficient rendering of moved\n * tabs and avoids subtle hover style artifacts.\n */\n createTabKey(data) {\n let key = this._tabKeys.get(data.title);\n if (key === undefined) {\n key = `tab-key-${this._uuid}-${this._tabID++}`;\n this._tabKeys.set(data.title, key);\n }\n return key;\n }\n /**\n * Create the inline style object for a tab.\n *\n * @param data - The data to use for the tab.\n *\n * @returns The inline style data for the tab.\n */\n createTabStyle(data) {\n return { zIndex: `${data.zIndex}` };\n }\n /**\n * Create the class name for the tab.\n *\n * @param data - The data to use for the tab.\n *\n * @returns The full class name for the tab.\n */\n createTabClass(data) {\n let name = 'lm-TabBar-tab';\n if (data.title.className) {\n name += ` ${data.title.className}`;\n }\n if (data.title.closable) {\n name += ' lm-mod-closable';\n }\n if (data.current) {\n name += ' lm-mod-current';\n }\n return name;\n }\n /**\n * Create the dataset for a tab.\n *\n * @param data - The data to use for the tab.\n *\n * @returns The dataset for the tab.\n */\n createTabDataset(data) {\n return data.title.dataset;\n }\n /**\n * Create the ARIA attributes for a tab.\n *\n * @param data - The data to use for the tab.\n *\n * @returns The ARIA attributes for the tab.\n */\n createTabARIA(data) {\n var _a;\n return {\n role: 'tab',\n 'aria-selected': data.current.toString(),\n tabindex: `${(_a = data.tabIndex) !== null && _a !== void 0 ? _a : '-1'}`\n };\n }\n /**\n * Create the class name for the tab icon.\n *\n * @param data - The data to use for the tab.\n *\n * @returns The full class name for the tab icon.\n */\n createIconClass(data) {\n let name = 'lm-TabBar-tabIcon';\n let extra = data.title.iconClass;\n return extra ? `${name} ${extra}` : name;\n }\n }\n Renderer._nInstance = 0;\n TabBar.Renderer = Renderer;\n /**\n * The default `Renderer` instance.\n */\n TabBar.defaultRenderer = new Renderer();\n /**\n * A selector which matches the add button node in the tab bar.\n */\n TabBar.addButtonSelector = '.lm-TabBar-addButton';\n})(TabBar || (TabBar = {}));\n/**\n * The namespace for the module implementation details.\n */\nvar Private$7;\n(function (Private) {\n /**\n * The start drag distance threshold.\n */\n Private.DRAG_THRESHOLD = 5;\n /**\n * The detach distance threshold.\n */\n Private.DETACH_THRESHOLD = 20;\n /**\n * Create the DOM node for a tab bar.\n */\n function createNode() {\n let node = document.createElement('div');\n let content = document.createElement('ul');\n content.setAttribute('role', 'tablist');\n content.className = 'lm-TabBar-content';\n node.appendChild(content);\n let add = document.createElement('div');\n add.className = 'lm-TabBar-addButton lm-mod-hidden';\n add.setAttribute('tabindex', '-1');\n add.setAttribute('role', 'button');\n node.appendChild(add);\n return node;\n }\n Private.createNode = createNode;\n /**\n * Coerce a title or options into a real title.\n */\n function asTitle(value) {\n return value instanceof Title ? value : new Title(value);\n }\n Private.asTitle = asTitle;\n /**\n * Parse the transition duration for a tab node.\n */\n function parseTransitionDuration(tab) {\n let style = window.getComputedStyle(tab);\n return 1000 * (parseFloat(style.transitionDuration) || 0);\n }\n Private.parseTransitionDuration = parseTransitionDuration;\n /**\n * Get a snapshot of the current tab layout values.\n */\n function snapTabLayout(tabs, orientation) {\n let layout = new Array(tabs.length);\n for (let i = 0, n = tabs.length; i < n; ++i) {\n let node = tabs[i];\n let style = window.getComputedStyle(node);\n if (orientation === 'horizontal') {\n layout[i] = {\n pos: node.offsetLeft,\n size: node.offsetWidth,\n margin: parseFloat(style.marginLeft) || 0\n };\n }\n else {\n layout[i] = {\n pos: node.offsetTop,\n size: node.offsetHeight,\n margin: parseFloat(style.marginTop) || 0\n };\n }\n }\n return layout;\n }\n Private.snapTabLayout = snapTabLayout;\n /**\n * Test if the event exceeds the drag threshold.\n */\n function dragExceeded(data, event) {\n let dx = Math.abs(event.clientX - data.pressX);\n let dy = Math.abs(event.clientY - data.pressY);\n return dx >= Private.DRAG_THRESHOLD || dy >= Private.DRAG_THRESHOLD;\n }\n Private.dragExceeded = dragExceeded;\n /**\n * Test if the event exceeds the drag detach threshold.\n */\n function detachExceeded(data, event) {\n let rect = data.contentRect;\n return (event.clientX < rect.left - Private.DETACH_THRESHOLD ||\n event.clientX >= rect.right + Private.DETACH_THRESHOLD ||\n event.clientY < rect.top - Private.DETACH_THRESHOLD ||\n event.clientY >= rect.bottom + Private.DETACH_THRESHOLD);\n }\n Private.detachExceeded = detachExceeded;\n /**\n * Update the relative tab positions and computed target index.\n */\n function layoutTabs(tabs, data, event, orientation) {\n // Compute the orientation-sensitive values.\n let pressPos;\n let localPos;\n let clientPos;\n let clientSize;\n if (orientation === 'horizontal') {\n pressPos = data.pressX;\n localPos = event.clientX - data.contentRect.left;\n clientPos = event.clientX;\n clientSize = data.contentRect.width;\n }\n else {\n pressPos = data.pressY;\n localPos = event.clientY - data.contentRect.top;\n clientPos = event.clientY;\n clientSize = data.contentRect.height;\n }\n // Compute the target data.\n let targetIndex = data.index;\n let targetPos = localPos - data.tabPressPos;\n let targetEnd = targetPos + data.tabSize;\n // Update the relative tab positions.\n for (let i = 0, n = tabs.length; i < n; ++i) {\n let pxPos;\n let layout = data.tabLayout[i];\n let threshold = layout.pos + (layout.size >> 1);\n if (i < data.index && targetPos < threshold) {\n pxPos = `${data.tabSize + data.tabLayout[i + 1].margin}px`;\n targetIndex = Math.min(targetIndex, i);\n }\n else if (i > data.index && targetEnd > threshold) {\n pxPos = `${-data.tabSize - layout.margin}px`;\n targetIndex = Math.max(targetIndex, i);\n }\n else if (i === data.index) {\n let ideal = clientPos - pressPos;\n let limit = clientSize - (data.tabPos + data.tabSize);\n pxPos = `${Math.max(-data.tabPos, Math.min(ideal, limit))}px`;\n }\n else {\n pxPos = '';\n }\n if (orientation === 'horizontal') {\n tabs[i].style.left = pxPos;\n }\n else {\n tabs[i].style.top = pxPos;\n }\n }\n // Update the computed target index.\n data.targetIndex = targetIndex;\n }\n Private.layoutTabs = layoutTabs;\n /**\n * Position the drag tab at its final resting relative position.\n */\n function finalizeTabPosition(data, orientation) {\n // Compute the orientation-sensitive client size.\n let clientSize;\n if (orientation === 'horizontal') {\n clientSize = data.contentRect.width;\n }\n else {\n clientSize = data.contentRect.height;\n }\n // Compute the ideal final tab position.\n let ideal;\n if (data.targetIndex === data.index) {\n ideal = 0;\n }\n else if (data.targetIndex > data.index) {\n let tgt = data.tabLayout[data.targetIndex];\n ideal = tgt.pos + tgt.size - data.tabSize - data.tabPos;\n }\n else {\n let tgt = data.tabLayout[data.targetIndex];\n ideal = tgt.pos - data.tabPos;\n }\n // Compute the tab position limit.\n let limit = clientSize - (data.tabPos + data.tabSize);\n let final = Math.max(-data.tabPos, Math.min(ideal, limit));\n // Set the final orientation-sensitive position.\n if (orientation === 'horizontal') {\n data.tab.style.left = `${final}px`;\n }\n else {\n data.tab.style.top = `${final}px`;\n }\n }\n Private.finalizeTabPosition = finalizeTabPosition;\n /**\n * Reset the relative positions of the given tabs.\n */\n function resetTabPositions(tabs, orientation) {\n for (const tab of tabs) {\n if (orientation === 'horizontal') {\n tab.style.left = '';\n }\n else {\n tab.style.top = '';\n }\n }\n }\n Private.resetTabPositions = resetTabPositions;\n})(Private$7 || (Private$7 = {}));\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * A layout which provides a flexible docking arrangement.\n *\n * #### Notes\n * The consumer of this layout is responsible for handling all signals\n * from the generated tab bars and managing the visibility of widgets\n * and tab bars as needed.\n */\nclass DockLayout extends Layout {\n /**\n * Construct a new dock layout.\n *\n * @param options - The options for initializing the layout.\n */\n constructor(options) {\n super();\n this._spacing = 4;\n this._dirty = false;\n this._root = null;\n this._box = null;\n this._items = new Map();\n this.renderer = options.renderer;\n if (options.spacing !== undefined) {\n this._spacing = Utils$1.clampDimension(options.spacing);\n }\n this._document = options.document || document;\n this._hiddenMode =\n options.hiddenMode !== undefined\n ? options.hiddenMode\n : Widget.HiddenMode.Display;\n }\n /**\n * Dispose of the resources held by the layout.\n *\n * #### Notes\n * This will clear and dispose all widgets in the layout.\n */\n dispose() {\n // Get an iterator over the widgets in the layout.\n let widgets = this[Symbol.iterator]();\n // Dispose of the layout items.\n this._items.forEach(item => {\n item.dispose();\n });\n // Clear the layout state before disposing the widgets.\n this._box = null;\n this._root = null;\n this._items.clear();\n // Dispose of the widgets contained in the old layout root.\n for (const widget of widgets) {\n widget.dispose();\n }\n // Dispose of the base class.\n super.dispose();\n }\n /**\n * The method for hiding child widgets.\n *\n * #### Notes\n * If there is only one child widget, `Display` hiding mode will be used\n * regardless of this setting.\n */\n get hiddenMode() {\n return this._hiddenMode;\n }\n set hiddenMode(v) {\n if (this._hiddenMode === v) {\n return;\n }\n this._hiddenMode = v;\n for (const bar of this.tabBars()) {\n if (bar.titles.length > 1) {\n for (const title of bar.titles) {\n title.owner.hiddenMode = this._hiddenMode;\n }\n }\n }\n }\n /**\n * Get the inter-element spacing for the dock layout.\n */\n get spacing() {\n return this._spacing;\n }\n /**\n * Set the inter-element spacing for the dock layout.\n */\n set spacing(value) {\n value = Utils$1.clampDimension(value);\n if (this._spacing === value) {\n return;\n }\n this._spacing = value;\n if (!this.parent) {\n return;\n }\n this.parent.fit();\n }\n /**\n * Whether the dock layout is empty.\n */\n get isEmpty() {\n return this._root === null;\n }\n /**\n * Create an iterator over all widgets in the layout.\n *\n * @returns A new iterator over the widgets in the layout.\n *\n * #### Notes\n * This iterator includes the generated tab bars.\n */\n [Symbol.iterator]() {\n return this._root ? this._root.iterAllWidgets() : empty();\n }\n /**\n * Create an iterator over the user widgets in the layout.\n *\n * @returns A new iterator over the user widgets in the layout.\n *\n * #### Notes\n * This iterator does not include the generated tab bars.\n */\n widgets() {\n return this._root ? this._root.iterUserWidgets() : empty();\n }\n /**\n * Create an iterator over the selected widgets in the layout.\n *\n * @returns A new iterator over the selected user widgets.\n *\n * #### Notes\n * This iterator yields the widgets corresponding to the current tab\n * of each tab bar in the layout.\n */\n selectedWidgets() {\n return this._root ? this._root.iterSelectedWidgets() : empty();\n }\n /**\n * Create an iterator over the tab bars in the layout.\n *\n * @returns A new iterator over the tab bars in the layout.\n *\n * #### Notes\n * This iterator does not include the user widgets.\n */\n tabBars() {\n return this._root ? this._root.iterTabBars() : empty();\n }\n /**\n * Create an iterator over the handles in the layout.\n *\n * @returns A new iterator over the handles in the layout.\n */\n handles() {\n return this._root ? this._root.iterHandles() : empty();\n }\n /**\n * Move a handle to the given offset position.\n *\n * @param handle - The handle to move.\n *\n * @param offsetX - The desired offset X position of the handle.\n *\n * @param offsetY - The desired offset Y position of the handle.\n *\n * #### Notes\n * If the given handle is not contained in the layout, this is no-op.\n *\n * The handle will be moved as close as possible to the desired\n * position without violating any of the layout constraints.\n *\n * Only one of the coordinates is used depending on the orientation\n * of the handle. This method accepts both coordinates to make it\n * easy to invoke from a mouse move event without needing to know\n * the handle orientation.\n */\n moveHandle(handle, offsetX, offsetY) {\n // Bail early if there is no root or if the handle is hidden.\n let hidden = handle.classList.contains('lm-mod-hidden');\n if (!this._root || hidden) {\n return;\n }\n // Lookup the split node for the handle.\n let data = this._root.findSplitNode(handle);\n if (!data) {\n return;\n }\n // Compute the desired delta movement for the handle.\n let delta;\n if (data.node.orientation === 'horizontal') {\n delta = offsetX - handle.offsetLeft;\n }\n else {\n delta = offsetY - handle.offsetTop;\n }\n // Bail if there is no handle movement.\n if (delta === 0) {\n return;\n }\n // Prevent sibling resizing unless needed.\n data.node.holdSizes();\n // Adjust the sizers to reflect the handle movement.\n BoxEngine.adjust(data.node.sizers, data.index, delta);\n // Update the layout of the widgets.\n if (this.parent) {\n this.parent.update();\n }\n }\n /**\n * Save the current configuration of the dock layout.\n *\n * @returns A new config object for the current layout state.\n *\n * #### Notes\n * The return value can be provided to the `restoreLayout` method\n * in order to restore the layout to its current configuration.\n */\n saveLayout() {\n // Bail early if there is no root.\n if (!this._root) {\n return { main: null };\n }\n // Hold the current sizes in the layout tree.\n this._root.holdAllSizes();\n // Return the layout config.\n return { main: this._root.createConfig() };\n }\n /**\n * Restore the layout to a previously saved configuration.\n *\n * @param config - The layout configuration to restore.\n *\n * #### Notes\n * Widgets which currently belong to the layout but which are not\n * contained in the config will be unparented.\n */\n restoreLayout(config) {\n // Create the widget set for validating the config.\n let widgetSet = new Set();\n // Normalize the main area config and collect the widgets.\n let mainConfig;\n if (config.main) {\n mainConfig = Private$6.normalizeAreaConfig(config.main, widgetSet);\n }\n else {\n mainConfig = null;\n }\n // Create iterators over the old content.\n let oldWidgets = this.widgets();\n let oldTabBars = this.tabBars();\n let oldHandles = this.handles();\n // Clear the root before removing the old content.\n this._root = null;\n // Unparent the old widgets which are not in the new config.\n for (const widget of oldWidgets) {\n if (!widgetSet.has(widget)) {\n widget.parent = null;\n }\n }\n // Dispose of the old tab bars.\n for (const tabBar of oldTabBars) {\n tabBar.dispose();\n }\n // Remove the old handles.\n for (const handle of oldHandles) {\n if (handle.parentNode) {\n handle.parentNode.removeChild(handle);\n }\n }\n // Reparent the new widgets to the current parent.\n for (const widget of widgetSet) {\n widget.parent = this.parent;\n }\n // Create the root node for the new config.\n if (mainConfig) {\n this._root = Private$6.realizeAreaConfig(mainConfig, {\n // Ignoring optional `document` argument as we must reuse `this._document`\n createTabBar: (document) => this._createTabBar(),\n createHandle: () => this._createHandle()\n }, this._document);\n }\n else {\n this._root = null;\n }\n // If there is no parent, there is nothing more to do.\n if (!this.parent) {\n return;\n }\n // Attach the new widgets to the parent.\n widgetSet.forEach(widget => {\n this.attachWidget(widget);\n });\n // Post a fit request to the parent.\n this.parent.fit();\n }\n /**\n * Add a widget to the dock layout.\n *\n * @param widget - The widget to add to the dock layout.\n *\n * @param options - The additional options for adding the widget.\n *\n * #### Notes\n * The widget will be moved if it is already contained in the layout.\n *\n * An error will be thrown if the reference widget is invalid.\n */\n addWidget(widget, options = {}) {\n // Parse the options.\n let ref = options.ref || null;\n let mode = options.mode || 'tab-after';\n // Find the tab node which holds the reference widget.\n let refNode = null;\n if (this._root && ref) {\n refNode = this._root.findTabNode(ref);\n }\n // Throw an error if the reference widget is invalid.\n if (ref && !refNode) {\n throw new Error('Reference widget is not in the layout.');\n }\n // Reparent the widget to the current layout parent.\n widget.parent = this.parent;\n // Insert the widget according to the insert mode.\n switch (mode) {\n case 'tab-after':\n this._insertTab(widget, ref, refNode, true);\n break;\n case 'tab-before':\n this._insertTab(widget, ref, refNode, false);\n break;\n case 'split-top':\n this._insertSplit(widget, ref, refNode, 'vertical', false);\n break;\n case 'split-left':\n this._insertSplit(widget, ref, refNode, 'horizontal', false);\n break;\n case 'split-right':\n this._insertSplit(widget, ref, refNode, 'horizontal', true);\n break;\n case 'split-bottom':\n this._insertSplit(widget, ref, refNode, 'vertical', true);\n break;\n case 'merge-top':\n this._insertSplit(widget, ref, refNode, 'vertical', false, true);\n break;\n case 'merge-left':\n this._insertSplit(widget, ref, refNode, 'horizontal', false, true);\n break;\n case 'merge-right':\n this._insertSplit(widget, ref, refNode, 'horizontal', true, true);\n break;\n case 'merge-bottom':\n this._insertSplit(widget, ref, refNode, 'vertical', true, true);\n break;\n }\n // Do nothing else if there is no parent widget.\n if (!this.parent) {\n return;\n }\n // Ensure the widget is attached to the parent widget.\n this.attachWidget(widget);\n // Post a fit request for the parent widget.\n this.parent.fit();\n }\n /**\n * Remove a widget from the layout.\n *\n * @param widget - The widget to remove from the layout.\n *\n * #### Notes\n * A widget is automatically removed from the layout when its `parent`\n * is set to `null`. This method should only be invoked directly when\n * removing a widget from a layout which has yet to be installed on a\n * parent widget.\n *\n * This method does *not* modify the widget's `parent`.\n */\n removeWidget(widget) {\n // Remove the widget from its current layout location.\n this._removeWidget(widget);\n // Do nothing else if there is no parent widget.\n if (!this.parent) {\n return;\n }\n // Detach the widget from the parent widget.\n this.detachWidget(widget);\n // Post a fit request for the parent widget.\n this.parent.fit();\n }\n /**\n * Find the tab area which contains the given client position.\n *\n * @param clientX - The client X position of interest.\n *\n * @param clientY - The client Y position of interest.\n *\n * @returns The geometry of the tab area at the given position, or\n * `null` if there is no tab area at the given position.\n */\n hitTestTabAreas(clientX, clientY) {\n // Bail early if hit testing cannot produce valid results.\n if (!this._root || !this.parent || !this.parent.isVisible) {\n return null;\n }\n // Ensure the parent box sizing data is computed.\n if (!this._box) {\n this._box = ElementExt.boxSizing(this.parent.node);\n }\n // Convert from client to local coordinates.\n let rect = this.parent.node.getBoundingClientRect();\n let x = clientX - rect.left - this._box.borderLeft;\n let y = clientY - rect.top - this._box.borderTop;\n // Find the tab layout node at the local position.\n let tabNode = this._root.hitTestTabNodes(x, y);\n // Bail if a tab layout node was not found.\n if (!tabNode) {\n return null;\n }\n // Extract the data from the tab node.\n let { tabBar, top, left, width, height } = tabNode;\n // Compute the right and bottom edges of the tab area.\n let borderWidth = this._box.borderLeft + this._box.borderRight;\n let borderHeight = this._box.borderTop + this._box.borderBottom;\n let right = rect.width - borderWidth - (left + width);\n let bottom = rect.height - borderHeight - (top + height);\n // Return the hit test results.\n return { tabBar, x, y, top, left, right, bottom, width, height };\n }\n /**\n * Perform layout initialization which requires the parent widget.\n */\n init() {\n // Perform superclass initialization.\n super.init();\n // Attach each widget to the parent.\n for (const widget of this) {\n this.attachWidget(widget);\n }\n // Attach each handle to the parent.\n for (const handle of this.handles()) {\n this.parent.node.appendChild(handle);\n }\n // Post a fit request for the parent widget.\n this.parent.fit();\n }\n /**\n * Attach the widget to the layout parent widget.\n *\n * @param widget - The widget to attach to the parent.\n *\n * #### Notes\n * This is a no-op if the widget is already attached.\n */\n attachWidget(widget) {\n // Do nothing if the widget is already attached.\n if (this.parent.node === widget.node.parentNode) {\n return;\n }\n // Create the layout item for the widget.\n this._items.set(widget, new LayoutItem(widget));\n // Send a `'before-attach'` message if the parent is attached.\n if (this.parent.isAttached) {\n MessageLoop.sendMessage(widget, Widget.Msg.BeforeAttach);\n }\n // Add the widget's node to the parent.\n this.parent.node.appendChild(widget.node);\n // Send an `'after-attach'` message if the parent is attached.\n if (this.parent.isAttached) {\n MessageLoop.sendMessage(widget, Widget.Msg.AfterAttach);\n }\n }\n /**\n * Detach the widget from the layout parent widget.\n *\n * @param widget - The widget to detach from the parent.\n *\n * #### Notes\n * This is a no-op if the widget is not attached.\n */\n detachWidget(widget) {\n // Do nothing if the widget is not attached.\n if (this.parent.node !== widget.node.parentNode) {\n return;\n }\n // Send a `'before-detach'` message if the parent is attached.\n if (this.parent.isAttached) {\n MessageLoop.sendMessage(widget, Widget.Msg.BeforeDetach);\n }\n // Remove the widget's node from the parent.\n this.parent.node.removeChild(widget.node);\n // Send an `'after-detach'` message if the parent is attached.\n if (this.parent.isAttached) {\n MessageLoop.sendMessage(widget, Widget.Msg.AfterDetach);\n }\n // Delete the layout item for the widget.\n let item = this._items.get(widget);\n if (item) {\n this._items.delete(widget);\n item.dispose();\n }\n }\n /**\n * A message handler invoked on a `'before-show'` message.\n */\n onBeforeShow(msg) {\n super.onBeforeShow(msg);\n this.parent.update();\n }\n /**\n * A message handler invoked on a `'before-attach'` message.\n */\n onBeforeAttach(msg) {\n super.onBeforeAttach(msg);\n this.parent.fit();\n }\n /**\n * A message handler invoked on a `'child-shown'` message.\n */\n onChildShown(msg) {\n this.parent.fit();\n }\n /**\n * A message handler invoked on a `'child-hidden'` message.\n */\n onChildHidden(msg) {\n this.parent.fit();\n }\n /**\n * A message handler invoked on a `'resize'` message.\n */\n onResize(msg) {\n if (this.parent.isVisible) {\n this._update(msg.width, msg.height);\n }\n }\n /**\n * A message handler invoked on an `'update-request'` message.\n */\n onUpdateRequest(msg) {\n if (this.parent.isVisible) {\n this._update(-1, -1);\n }\n }\n /**\n * A message handler invoked on a `'fit-request'` message.\n */\n onFitRequest(msg) {\n if (this.parent.isAttached) {\n this._fit();\n }\n }\n /**\n * Remove the specified widget from the layout structure.\n *\n * #### Notes\n * This is a no-op if the widget is not in the layout tree.\n *\n * This does not detach the widget from the parent node.\n */\n _removeWidget(widget) {\n // Bail early if there is no layout root.\n if (!this._root) {\n return;\n }\n // Find the tab node which contains the given widget.\n let tabNode = this._root.findTabNode(widget);\n // Bail early if the tab node is not found.\n if (!tabNode) {\n return;\n }\n Private$6.removeAria(widget);\n // If there are multiple tabs, just remove the widget's tab.\n if (tabNode.tabBar.titles.length > 1) {\n tabNode.tabBar.removeTab(widget.title);\n if (this._hiddenMode === Widget.HiddenMode.Scale &&\n tabNode.tabBar.titles.length == 1) {\n const existingWidget = tabNode.tabBar.titles[0].owner;\n existingWidget.hiddenMode = Widget.HiddenMode.Display;\n }\n return;\n }\n // Otherwise, the tab node needs to be removed...\n // Dispose the tab bar.\n tabNode.tabBar.dispose();\n // Handle the case where the tab node is the root.\n if (this._root === tabNode) {\n this._root = null;\n return;\n }\n // Otherwise, remove the tab node from its parent...\n // Prevent widget resizing unless needed.\n this._root.holdAllSizes();\n // Clear the parent reference on the tab node.\n let splitNode = tabNode.parent;\n tabNode.parent = null;\n // Remove the tab node from its parent split node.\n let i = ArrayExt.removeFirstOf(splitNode.children, tabNode);\n let handle = ArrayExt.removeAt(splitNode.handles, i);\n ArrayExt.removeAt(splitNode.sizers, i);\n // Remove the handle from its parent DOM node.\n if (handle.parentNode) {\n handle.parentNode.removeChild(handle);\n }\n // If there are multiple children, just update the handles.\n if (splitNode.children.length > 1) {\n splitNode.syncHandles();\n return;\n }\n // Otherwise, the split node also needs to be removed...\n // Clear the parent reference on the split node.\n let maybeParent = splitNode.parent;\n splitNode.parent = null;\n // Lookup the remaining child node and handle.\n let childNode = splitNode.children[0];\n let childHandle = splitNode.handles[0];\n // Clear the split node data.\n splitNode.children.length = 0;\n splitNode.handles.length = 0;\n splitNode.sizers.length = 0;\n // Remove the child handle from its parent node.\n if (childHandle.parentNode) {\n childHandle.parentNode.removeChild(childHandle);\n }\n // Handle the case where the split node is the root.\n if (this._root === splitNode) {\n childNode.parent = null;\n this._root = childNode;\n return;\n }\n // Otherwise, move the child node to the parent node...\n let parentNode = maybeParent;\n // Lookup the index of the split node.\n let j = parentNode.children.indexOf(splitNode);\n // Handle the case where the child node is a tab node.\n if (childNode instanceof Private$6.TabLayoutNode) {\n childNode.parent = parentNode;\n parentNode.children[j] = childNode;\n return;\n }\n // Remove the split data from the parent.\n let splitHandle = ArrayExt.removeAt(parentNode.handles, j);\n ArrayExt.removeAt(parentNode.children, j);\n ArrayExt.removeAt(parentNode.sizers, j);\n // Remove the handle from its parent node.\n if (splitHandle.parentNode) {\n splitHandle.parentNode.removeChild(splitHandle);\n }\n // The child node and the split parent node will have the same\n // orientation. Merge the grand-children with the parent node.\n for (let i = 0, n = childNode.children.length; i < n; ++i) {\n let gChild = childNode.children[i];\n let gHandle = childNode.handles[i];\n let gSizer = childNode.sizers[i];\n ArrayExt.insert(parentNode.children, j + i, gChild);\n ArrayExt.insert(parentNode.handles, j + i, gHandle);\n ArrayExt.insert(parentNode.sizers, j + i, gSizer);\n gChild.parent = parentNode;\n }\n // Clear the child node.\n childNode.children.length = 0;\n childNode.handles.length = 0;\n childNode.sizers.length = 0;\n childNode.parent = null;\n // Sync the handles on the parent node.\n parentNode.syncHandles();\n }\n /**\n * Create the tab layout node to hold the widget.\n */\n _createTabNode(widget) {\n let tabNode = new Private$6.TabLayoutNode(this._createTabBar());\n tabNode.tabBar.addTab(widget.title);\n Private$6.addAria(widget, tabNode.tabBar);\n return tabNode;\n }\n /**\n * Insert a widget next to an existing tab.\n *\n * #### Notes\n * This does not attach the widget to the parent widget.\n */\n _insertTab(widget, ref, refNode, after) {\n // Do nothing if the tab is inserted next to itself.\n if (widget === ref) {\n return;\n }\n // Create the root if it does not exist.\n if (!this._root) {\n let tabNode = new Private$6.TabLayoutNode(this._createTabBar());\n tabNode.tabBar.addTab(widget.title);\n this._root = tabNode;\n Private$6.addAria(widget, tabNode.tabBar);\n return;\n }\n // Use the first tab node as the ref node if needed.\n if (!refNode) {\n refNode = this._root.findFirstTabNode();\n }\n // If the widget is not contained in the ref node, ensure it is\n // removed from the layout and hidden before being added again.\n if (refNode.tabBar.titles.indexOf(widget.title) === -1) {\n this._removeWidget(widget);\n widget.hide();\n }\n // Lookup the target index for inserting the tab.\n let index;\n if (ref) {\n index = refNode.tabBar.titles.indexOf(ref.title);\n }\n else {\n index = refNode.tabBar.currentIndex;\n }\n // Using transform create an additional layer in the pixel pipeline\n // to limit the number of layer, it is set only if there is more than one widget.\n if (this._hiddenMode === Widget.HiddenMode.Scale) {\n if (refNode.tabBar.titles.length === 0) {\n // Singular tab should use display mode to limit number of layers.\n widget.hiddenMode = Widget.HiddenMode.Display;\n }\n else if (refNode.tabBar.titles.length == 1) {\n // If we are adding a second tab, switch the existing tab back to scale.\n const existingWidget = refNode.tabBar.titles[0].owner;\n existingWidget.hiddenMode = Widget.HiddenMode.Scale;\n }\n else {\n // For the third and subsequent tabs no special action is needed.\n widget.hiddenMode = Widget.HiddenMode.Scale;\n }\n }\n else {\n // For all other modes just propagate the current mode.\n widget.hiddenMode = this._hiddenMode;\n }\n // Insert the widget's tab relative to the target index.\n refNode.tabBar.insertTab(index + (after ? 1 : 0), widget.title);\n Private$6.addAria(widget, refNode.tabBar);\n }\n /**\n * Insert a widget as a new split area.\n *\n * #### Notes\n * This does not attach the widget to the parent widget.\n */\n _insertSplit(widget, ref, refNode, orientation, after, merge = false) {\n // Do nothing if there is no effective split.\n if (widget === ref && refNode && refNode.tabBar.titles.length === 1) {\n return;\n }\n // Ensure the widget is removed from the current layout.\n this._removeWidget(widget);\n // Set the root if it does not exist.\n if (!this._root) {\n this._root = this._createTabNode(widget);\n return;\n }\n // If the ref node parent is null, split the root.\n if (!refNode || !refNode.parent) {\n // Ensure the root is split with the correct orientation.\n let root = this._splitRoot(orientation);\n // Determine the insert index for the new tab node.\n let i = after ? root.children.length : 0;\n // Normalize the split node.\n root.normalizeSizes();\n // Create the sizer for new tab node.\n let sizer = Private$6.createSizer(refNode ? 1 : Private$6.GOLDEN_RATIO);\n // Insert the tab node sized to the golden ratio.\n let tabNode = this._createTabNode(widget);\n ArrayExt.insert(root.children, i, tabNode);\n ArrayExt.insert(root.sizers, i, sizer);\n ArrayExt.insert(root.handles, i, this._createHandle());\n tabNode.parent = root;\n // Re-normalize the split node to maintain the ratios.\n root.normalizeSizes();\n // Finally, synchronize the visibility of the handles.\n root.syncHandles();\n return;\n }\n // Lookup the split node for the ref widget.\n let splitNode = refNode.parent;\n // If the split node already had the correct orientation,\n // the widget can be inserted into the split node directly.\n if (splitNode.orientation === orientation) {\n // Find the index of the ref node.\n let i = splitNode.children.indexOf(refNode);\n // Conditionally reuse a tab layout found in the wanted position.\n if (merge) {\n let j = i + (after ? 1 : -1);\n let sibling = splitNode.children[j];\n if (sibling instanceof Private$6.TabLayoutNode) {\n this._insertTab(widget, null, sibling, true);\n ++sibling.tabBar.currentIndex;\n return;\n }\n }\n // Normalize the split node.\n splitNode.normalizeSizes();\n // Consume half the space for the insert location.\n let s = (splitNode.sizers[i].sizeHint /= 2);\n // Insert the tab node sized to the other half.\n let j = i + (after ? 1 : 0);\n let tabNode = this._createTabNode(widget);\n ArrayExt.insert(splitNode.children, j, tabNode);\n ArrayExt.insert(splitNode.sizers, j, Private$6.createSizer(s));\n ArrayExt.insert(splitNode.handles, j, this._createHandle());\n tabNode.parent = splitNode;\n // Finally, synchronize the visibility of the handles.\n splitNode.syncHandles();\n return;\n }\n // Remove the ref node from the split node.\n let i = ArrayExt.removeFirstOf(splitNode.children, refNode);\n // Create a new normalized split node for the children.\n let childNode = new Private$6.SplitLayoutNode(orientation);\n childNode.normalized = true;\n // Add the ref node sized to half the space.\n childNode.children.push(refNode);\n childNode.sizers.push(Private$6.createSizer(0.5));\n childNode.handles.push(this._createHandle());\n refNode.parent = childNode;\n // Add the tab node sized to the other half.\n let j = after ? 1 : 0;\n let tabNode = this._createTabNode(widget);\n ArrayExt.insert(childNode.children, j, tabNode);\n ArrayExt.insert(childNode.sizers, j, Private$6.createSizer(0.5));\n ArrayExt.insert(childNode.handles, j, this._createHandle());\n tabNode.parent = childNode;\n // Synchronize the visibility of the handles.\n childNode.syncHandles();\n // Finally, add the new child node to the original split node.\n ArrayExt.insert(splitNode.children, i, childNode);\n childNode.parent = splitNode;\n }\n /**\n * Ensure the root is a split node with the given orientation.\n */\n _splitRoot(orientation) {\n // Bail early if the root already meets the requirements.\n let oldRoot = this._root;\n if (oldRoot instanceof Private$6.SplitLayoutNode) {\n if (oldRoot.orientation === orientation) {\n return oldRoot;\n }\n }\n // Create a new root node with the specified orientation.\n let newRoot = (this._root = new Private$6.SplitLayoutNode(orientation));\n // Add the old root to the new root.\n if (oldRoot) {\n newRoot.children.push(oldRoot);\n newRoot.sizers.push(Private$6.createSizer(0));\n newRoot.handles.push(this._createHandle());\n oldRoot.parent = newRoot;\n }\n // Return the new root as a convenience.\n return newRoot;\n }\n /**\n * Fit the layout to the total size required by the widgets.\n */\n _fit() {\n // Set up the computed minimum size.\n let minW = 0;\n let minH = 0;\n // Update the size limits for the layout tree.\n if (this._root) {\n let limits = this._root.fit(this._spacing, this._items);\n minW = limits.minWidth;\n minH = limits.minHeight;\n }\n // Update the box sizing and add it to the computed min size.\n let box = (this._box = ElementExt.boxSizing(this.parent.node));\n minW += box.horizontalSum;\n minH += box.verticalSum;\n // Update the parent's min size constraints.\n let style = this.parent.node.style;\n style.minWidth = `${minW}px`;\n style.minHeight = `${minH}px`;\n // Set the dirty flag to ensure only a single update occurs.\n this._dirty = true;\n // Notify the ancestor that it should fit immediately. This may\n // cause a resize of the parent, fulfilling the required update.\n if (this.parent.parent) {\n MessageLoop.sendMessage(this.parent.parent, Widget.Msg.FitRequest);\n }\n // If the dirty flag is still set, the parent was not resized.\n // Trigger the required update on the parent widget immediately.\n if (this._dirty) {\n MessageLoop.sendMessage(this.parent, Widget.Msg.UpdateRequest);\n }\n }\n /**\n * Update the layout position and size of the widgets.\n *\n * The parent offset dimensions should be `-1` if unknown.\n */\n _update(offsetWidth, offsetHeight) {\n // Clear the dirty flag to indicate the update occurred.\n this._dirty = false;\n // Bail early if there is no root layout node.\n if (!this._root) {\n return;\n }\n // Measure the parent if the offset dimensions are unknown.\n if (offsetWidth < 0) {\n offsetWidth = this.parent.node.offsetWidth;\n }\n if (offsetHeight < 0) {\n offsetHeight = this.parent.node.offsetHeight;\n }\n // Ensure the parent box sizing data is computed.\n if (!this._box) {\n this._box = ElementExt.boxSizing(this.parent.node);\n }\n // Compute the actual layout bounds adjusted for border and padding.\n let x = this._box.paddingTop;\n let y = this._box.paddingLeft;\n let width = offsetWidth - this._box.horizontalSum;\n let height = offsetHeight - this._box.verticalSum;\n // Update the geometry of the layout tree.\n this._root.update(x, y, width, height, this._spacing, this._items);\n }\n /**\n * Create a new tab bar for use by the dock layout.\n *\n * #### Notes\n * The tab bar will be attached to the parent if it exists.\n */\n _createTabBar() {\n // Create the tab bar using the renderer.\n let tabBar = this.renderer.createTabBar(this._document);\n // Enforce necessary tab bar behavior.\n tabBar.orientation = 'horizontal';\n // Attach the tab bar to the parent if possible.\n if (this.parent) {\n this.attachWidget(tabBar);\n }\n // Return the initialized tab bar.\n return tabBar;\n }\n /**\n * Create a new handle for the dock layout.\n *\n * #### Notes\n * The handle will be attached to the parent if it exists.\n */\n _createHandle() {\n // Create the handle using the renderer.\n let handle = this.renderer.createHandle();\n // Initialize the handle layout behavior.\n let style = handle.style;\n style.position = 'absolute';\n style.contain = 'strict';\n style.top = '0';\n style.left = '0';\n style.width = '0';\n style.height = '0';\n // Attach the handle to the parent if it exists.\n if (this.parent) {\n this.parent.node.appendChild(handle);\n }\n // Return the initialized handle.\n return handle;\n }\n}\n/**\n * The namespace for the module implementation details.\n */\nvar Private$6;\n(function (Private) {\n /**\n * A fraction used for sizing root panels; ~= `1 / golden_ratio`.\n */\n Private.GOLDEN_RATIO = 0.618;\n /**\n * Create a box sizer with an initial size hint.\n */\n function createSizer(hint) {\n let sizer = new BoxSizer();\n sizer.sizeHint = hint;\n sizer.size = hint;\n return sizer;\n }\n Private.createSizer = createSizer;\n /**\n * Normalize an area config object and collect the visited widgets.\n */\n function normalizeAreaConfig(config, widgetSet) {\n let result;\n if (config.type === 'tab-area') {\n result = normalizeTabAreaConfig(config, widgetSet);\n }\n else {\n result = normalizeSplitAreaConfig(config, widgetSet);\n }\n return result;\n }\n Private.normalizeAreaConfig = normalizeAreaConfig;\n /**\n * Convert a normalized area config into a layout tree.\n */\n function realizeAreaConfig(config, renderer, document) {\n let node;\n if (config.type === 'tab-area') {\n node = realizeTabAreaConfig(config, renderer, document);\n }\n else {\n node = realizeSplitAreaConfig(config, renderer, document);\n }\n return node;\n }\n Private.realizeAreaConfig = realizeAreaConfig;\n /**\n * A layout node which holds the data for a tabbed area.\n */\n class TabLayoutNode {\n /**\n * Construct a new tab layout node.\n *\n * @param tabBar - The tab bar to use for the layout node.\n */\n constructor(tabBar) {\n /**\n * The parent of the layout node.\n */\n this.parent = null;\n this._top = 0;\n this._left = 0;\n this._width = 0;\n this._height = 0;\n let tabSizer = new BoxSizer();\n let widgetSizer = new BoxSizer();\n tabSizer.stretch = 0;\n widgetSizer.stretch = 1;\n this.tabBar = tabBar;\n this.sizers = [tabSizer, widgetSizer];\n }\n /**\n * The most recent value for the `top` edge of the layout box.\n */\n get top() {\n return this._top;\n }\n /**\n * The most recent value for the `left` edge of the layout box.\n */\n get left() {\n return this._left;\n }\n /**\n * The most recent value for the `width` of the layout box.\n */\n get width() {\n return this._width;\n }\n /**\n * The most recent value for the `height` of the layout box.\n */\n get height() {\n return this._height;\n }\n /**\n * Create an iterator for all widgets in the layout tree.\n */\n *iterAllWidgets() {\n yield this.tabBar;\n yield* this.iterUserWidgets();\n }\n /**\n * Create an iterator for the user widgets in the layout tree.\n */\n *iterUserWidgets() {\n for (const title of this.tabBar.titles) {\n yield title.owner;\n }\n }\n /**\n * Create an iterator for the selected widgets in the layout tree.\n */\n *iterSelectedWidgets() {\n let title = this.tabBar.currentTitle;\n if (title) {\n yield title.owner;\n }\n }\n /**\n * Create an iterator for the tab bars in the layout tree.\n */\n *iterTabBars() {\n yield this.tabBar;\n }\n /**\n * Create an iterator for the handles in the layout tree.\n */\n // eslint-disable-next-line require-yield\n *iterHandles() {\n return;\n }\n /**\n * Find the tab layout node which contains the given widget.\n */\n findTabNode(widget) {\n return this.tabBar.titles.indexOf(widget.title) !== -1 ? this : null;\n }\n /**\n * Find the split layout node which contains the given handle.\n */\n findSplitNode(handle) {\n return null;\n }\n /**\n * Find the first tab layout node in a layout tree.\n */\n findFirstTabNode() {\n return this;\n }\n /**\n * Find the tab layout node which contains the local point.\n */\n hitTestTabNodes(x, y) {\n if (x < this._left || x >= this._left + this._width) {\n return null;\n }\n if (y < this._top || y >= this._top + this._height) {\n return null;\n }\n return this;\n }\n /**\n * Create a configuration object for the layout tree.\n */\n createConfig() {\n let widgets = this.tabBar.titles.map(title => title.owner);\n let currentIndex = this.tabBar.currentIndex;\n return { type: 'tab-area', widgets, currentIndex };\n }\n /**\n * Recursively hold all of the sizes in the layout tree.\n *\n * This ignores the sizers of tab layout nodes.\n */\n holdAllSizes() {\n return;\n }\n /**\n * Fit the layout tree.\n */\n fit(spacing, items) {\n // Set up the limit variables.\n let minWidth = 0;\n let minHeight = 0;\n let maxWidth = Infinity;\n let maxHeight = Infinity;\n // Lookup the tab bar layout item.\n let tabBarItem = items.get(this.tabBar);\n // Lookup the widget layout item.\n let current = this.tabBar.currentTitle;\n let widgetItem = current ? items.get(current.owner) : undefined;\n // Lookup the tab bar and widget sizers.\n let [tabBarSizer, widgetSizer] = this.sizers;\n // Update the tab bar limits.\n if (tabBarItem) {\n tabBarItem.fit();\n }\n // Update the widget limits.\n if (widgetItem) {\n widgetItem.fit();\n }\n // Update the results and sizer for the tab bar.\n if (tabBarItem && !tabBarItem.isHidden) {\n minWidth = Math.max(minWidth, tabBarItem.minWidth);\n minHeight += tabBarItem.minHeight;\n tabBarSizer.minSize = tabBarItem.minHeight;\n tabBarSizer.maxSize = tabBarItem.maxHeight;\n }\n else {\n tabBarSizer.minSize = 0;\n tabBarSizer.maxSize = 0;\n }\n // Update the results and sizer for the current widget.\n if (widgetItem && !widgetItem.isHidden) {\n minWidth = Math.max(minWidth, widgetItem.minWidth);\n minHeight += widgetItem.minHeight;\n widgetSizer.minSize = widgetItem.minHeight;\n widgetSizer.maxSize = Infinity;\n }\n else {\n widgetSizer.minSize = 0;\n widgetSizer.maxSize = Infinity;\n }\n // Return the computed size limits for the layout node.\n return { minWidth, minHeight, maxWidth, maxHeight };\n }\n /**\n * Update the layout tree.\n */\n update(left, top, width, height, spacing, items) {\n // Update the layout box values.\n this._top = top;\n this._left = left;\n this._width = width;\n this._height = height;\n // Lookup the tab bar layout item.\n let tabBarItem = items.get(this.tabBar);\n // Lookup the widget layout item.\n let current = this.tabBar.currentTitle;\n let widgetItem = current ? items.get(current.owner) : undefined;\n // Distribute the layout space to the sizers.\n BoxEngine.calc(this.sizers, height);\n // Update the tab bar item using the computed size.\n if (tabBarItem && !tabBarItem.isHidden) {\n let size = this.sizers[0].size;\n tabBarItem.update(left, top, width, size);\n top += size;\n }\n // Layout the widget using the computed size.\n if (widgetItem && !widgetItem.isHidden) {\n let size = this.sizers[1].size;\n widgetItem.update(left, top, width, size);\n }\n }\n }\n Private.TabLayoutNode = TabLayoutNode;\n /**\n * A layout node which holds the data for a split area.\n */\n class SplitLayoutNode {\n /**\n * Construct a new split layout node.\n *\n * @param orientation - The orientation of the node.\n */\n constructor(orientation) {\n /**\n * The parent of the layout node.\n */\n this.parent = null;\n /**\n * Whether the sizers have been normalized.\n */\n this.normalized = false;\n /**\n * The child nodes for the split node.\n */\n this.children = [];\n /**\n * The box sizers for the layout children.\n */\n this.sizers = [];\n /**\n * The handles for the layout children.\n */\n this.handles = [];\n this.orientation = orientation;\n }\n /**\n * Create an iterator for all widgets in the layout tree.\n */\n *iterAllWidgets() {\n for (const child of this.children) {\n yield* child.iterAllWidgets();\n }\n }\n /**\n * Create an iterator for the user widgets in the layout tree.\n */\n *iterUserWidgets() {\n for (const child of this.children) {\n yield* child.iterUserWidgets();\n }\n }\n /**\n * Create an iterator for the selected widgets in the layout tree.\n */\n *iterSelectedWidgets() {\n for (const child of this.children) {\n yield* child.iterSelectedWidgets();\n }\n }\n /**\n * Create an iterator for the tab bars in the layout tree.\n */\n *iterTabBars() {\n for (const child of this.children) {\n yield* child.iterTabBars();\n }\n }\n /**\n * Create an iterator for the handles in the layout tree.\n */\n *iterHandles() {\n yield* this.handles;\n for (const child of this.children) {\n yield* child.iterHandles();\n }\n }\n /**\n * Find the tab layout node which contains the given widget.\n */\n findTabNode(widget) {\n for (let i = 0, n = this.children.length; i < n; ++i) {\n let result = this.children[i].findTabNode(widget);\n if (result) {\n return result;\n }\n }\n return null;\n }\n /**\n * Find the split layout node which contains the given handle.\n */\n findSplitNode(handle) {\n let index = this.handles.indexOf(handle);\n if (index !== -1) {\n return { index, node: this };\n }\n for (let i = 0, n = this.children.length; i < n; ++i) {\n let result = this.children[i].findSplitNode(handle);\n if (result) {\n return result;\n }\n }\n return null;\n }\n /**\n * Find the first tab layout node in a layout tree.\n */\n findFirstTabNode() {\n if (this.children.length === 0) {\n return null;\n }\n return this.children[0].findFirstTabNode();\n }\n /**\n * Find the tab layout node which contains the local point.\n */\n hitTestTabNodes(x, y) {\n for (let i = 0, n = this.children.length; i < n; ++i) {\n let result = this.children[i].hitTestTabNodes(x, y);\n if (result) {\n return result;\n }\n }\n return null;\n }\n /**\n * Create a configuration object for the layout tree.\n */\n createConfig() {\n let orientation = this.orientation;\n let sizes = this.createNormalizedSizes();\n let children = this.children.map(child => child.createConfig());\n return { type: 'split-area', orientation, children, sizes };\n }\n /**\n * Sync the visibility and orientation of the handles.\n */\n syncHandles() {\n this.handles.forEach((handle, i) => {\n handle.setAttribute('data-orientation', this.orientation);\n if (i === this.handles.length - 1) {\n handle.classList.add('lm-mod-hidden');\n }\n else {\n handle.classList.remove('lm-mod-hidden');\n }\n });\n }\n /**\n * Hold the current sizes of the box sizers.\n *\n * This sets the size hint of each sizer to its current size.\n */\n holdSizes() {\n for (const sizer of this.sizers) {\n sizer.sizeHint = sizer.size;\n }\n }\n /**\n * Recursively hold all of the sizes in the layout tree.\n *\n * This ignores the sizers of tab layout nodes.\n */\n holdAllSizes() {\n for (const child of this.children) {\n child.holdAllSizes();\n }\n this.holdSizes();\n }\n /**\n * Normalize the sizes of the split layout node.\n */\n normalizeSizes() {\n // Bail early if the sizers are empty.\n let n = this.sizers.length;\n if (n === 0) {\n return;\n }\n // Hold the current sizes of the sizers.\n this.holdSizes();\n // Compute the sum of the sizes.\n let sum = this.sizers.reduce((v, sizer) => v + sizer.sizeHint, 0);\n // Normalize the sizes based on the sum.\n if (sum === 0) {\n for (const sizer of this.sizers) {\n sizer.size = sizer.sizeHint = 1 / n;\n }\n }\n else {\n for (const sizer of this.sizers) {\n sizer.size = sizer.sizeHint /= sum;\n }\n }\n // Mark the sizes as normalized.\n this.normalized = true;\n }\n /**\n * Snap the normalized sizes of the split layout node.\n */\n createNormalizedSizes() {\n // Bail early if the sizers are empty.\n let n = this.sizers.length;\n if (n === 0) {\n return [];\n }\n // Grab the current sizes of the sizers.\n let sizes = this.sizers.map(sizer => sizer.size);\n // Compute the sum of the sizes.\n let sum = sizes.reduce((v, size) => v + size, 0);\n // Normalize the sizes based on the sum.\n if (sum === 0) {\n for (let i = sizes.length - 1; i > -1; i--) {\n sizes[i] = 1 / n;\n }\n }\n else {\n for (let i = sizes.length - 1; i > -1; i--) {\n sizes[i] /= sum;\n }\n }\n // Return the normalized sizes.\n return sizes;\n }\n /**\n * Fit the layout tree.\n */\n fit(spacing, items) {\n // Compute the required fixed space.\n let horizontal = this.orientation === 'horizontal';\n let fixed = Math.max(0, this.children.length - 1) * spacing;\n // Set up the limit variables.\n let minWidth = horizontal ? fixed : 0;\n let minHeight = horizontal ? 0 : fixed;\n let maxWidth = Infinity;\n let maxHeight = Infinity;\n // Fit the children and update the limits.\n for (let i = 0, n = this.children.length; i < n; ++i) {\n let limits = this.children[i].fit(spacing, items);\n if (horizontal) {\n minHeight = Math.max(minHeight, limits.minHeight);\n minWidth += limits.minWidth;\n this.sizers[i].minSize = limits.minWidth;\n }\n else {\n minWidth = Math.max(minWidth, limits.minWidth);\n minHeight += limits.minHeight;\n this.sizers[i].minSize = limits.minHeight;\n }\n }\n // Return the computed limits for the layout node.\n return { minWidth, minHeight, maxWidth, maxHeight };\n }\n /**\n * Update the layout tree.\n */\n update(left, top, width, height, spacing, items) {\n // Compute the available layout space.\n let horizontal = this.orientation === 'horizontal';\n let fixed = Math.max(0, this.children.length - 1) * spacing;\n let space = Math.max(0, (horizontal ? width : height) - fixed);\n // De-normalize the sizes if needed.\n if (this.normalized) {\n for (const sizer of this.sizers) {\n sizer.sizeHint *= space;\n }\n this.normalized = false;\n }\n // Distribute the layout space to the sizers.\n BoxEngine.calc(this.sizers, space);\n // Update the geometry of the child nodes and handles.\n for (let i = 0, n = this.children.length; i < n; ++i) {\n let child = this.children[i];\n let size = this.sizers[i].size;\n let handleStyle = this.handles[i].style;\n if (horizontal) {\n child.update(left, top, size, height, spacing, items);\n left += size;\n handleStyle.top = `${top}px`;\n handleStyle.left = `${left}px`;\n handleStyle.width = `${spacing}px`;\n handleStyle.height = `${height}px`;\n left += spacing;\n }\n else {\n child.update(left, top, width, size, spacing, items);\n top += size;\n handleStyle.top = `${top}px`;\n handleStyle.left = `${left}px`;\n handleStyle.width = `${width}px`;\n handleStyle.height = `${spacing}px`;\n top += spacing;\n }\n }\n }\n }\n Private.SplitLayoutNode = SplitLayoutNode;\n function addAria(widget, tabBar) {\n widget.node.setAttribute('role', 'tabpanel');\n let renderer = tabBar.renderer;\n if (renderer instanceof TabBar.Renderer) {\n let tabId = renderer.createTabKey({\n title: widget.title,\n current: false,\n zIndex: 0\n });\n widget.node.setAttribute('aria-labelledby', tabId);\n }\n }\n Private.addAria = addAria;\n function removeAria(widget) {\n widget.node.removeAttribute('role');\n widget.node.removeAttribute('aria-labelledby');\n }\n Private.removeAria = removeAria;\n /**\n * Normalize a tab area config and collect the visited widgets.\n */\n function normalizeTabAreaConfig(config, widgetSet) {\n // Bail early if there is no content.\n if (config.widgets.length === 0) {\n return null;\n }\n // Setup the filtered widgets array.\n let widgets = [];\n // Filter the config for unique widgets.\n for (const widget of config.widgets) {\n if (!widgetSet.has(widget)) {\n widgetSet.add(widget);\n widgets.push(widget);\n }\n }\n // Bail if there are no effective widgets.\n if (widgets.length === 0) {\n return null;\n }\n // Normalize the current index.\n let index = config.currentIndex;\n if (index !== -1 && (index < 0 || index >= widgets.length)) {\n index = 0;\n }\n // Return a normalized config object.\n return { type: 'tab-area', widgets, currentIndex: index };\n }\n /**\n * Normalize a split area config and collect the visited widgets.\n */\n function normalizeSplitAreaConfig(config, widgetSet) {\n // Set up the result variables.\n let orientation = config.orientation;\n let children = [];\n let sizes = [];\n // Normalize the config children.\n for (let i = 0, n = config.children.length; i < n; ++i) {\n // Normalize the child config.\n let child = normalizeAreaConfig(config.children[i], widgetSet);\n // Ignore an empty child.\n if (!child) {\n continue;\n }\n // Add the child or hoist its content as appropriate.\n if (child.type === 'tab-area' || child.orientation !== orientation) {\n children.push(child);\n sizes.push(Math.abs(config.sizes[i] || 0));\n }\n else {\n children.push(...child.children);\n sizes.push(...child.sizes);\n }\n }\n // Bail if there are no effective children.\n if (children.length === 0) {\n return null;\n }\n // If there is only one effective child, return that child.\n if (children.length === 1) {\n return children[0];\n }\n // Return a normalized config object.\n return { type: 'split-area', orientation, children, sizes };\n }\n /**\n * Convert a normalized tab area config into a layout tree.\n */\n function realizeTabAreaConfig(config, renderer, document) {\n // Create the tab bar for the layout node.\n let tabBar = renderer.createTabBar(document);\n // Hide each widget and add it to the tab bar.\n for (const widget of config.widgets) {\n widget.hide();\n tabBar.addTab(widget.title);\n Private.addAria(widget, tabBar);\n }\n // Set the current index of the tab bar.\n tabBar.currentIndex = config.currentIndex;\n // Return the new tab layout node.\n return new TabLayoutNode(tabBar);\n }\n /**\n * Convert a normalized split area config into a layout tree.\n */\n function realizeSplitAreaConfig(config, renderer, document) {\n // Create the split layout node.\n let node = new SplitLayoutNode(config.orientation);\n // Add each child to the layout node.\n config.children.forEach((child, i) => {\n // Create the child data for the layout node.\n let childNode = realizeAreaConfig(child, renderer, document);\n let sizer = createSizer(config.sizes[i]);\n let handle = renderer.createHandle();\n // Add the child data to the layout node.\n node.children.push(childNode);\n node.handles.push(handle);\n node.sizers.push(sizer);\n // Update the parent for the child node.\n childNode.parent = node;\n });\n // Synchronize the handle state for the layout node.\n node.syncHandles();\n // Normalize the sizes for the layout node.\n node.normalizeSizes();\n // Return the new layout node.\n return node;\n }\n})(Private$6 || (Private$6 = {}));\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * A widget which provides a flexible docking area for widgets.\n */\nclass DockPanel extends Widget {\n /**\n * Construct a new dock panel.\n *\n * @param options - The options for initializing the panel.\n */\n constructor(options = {}) {\n super();\n this._drag = null;\n this._tabsMovable = true;\n this._tabsConstrained = false;\n this._addButtonEnabled = false;\n this._pressData = null;\n this._layoutModified = new Signal(this);\n this._addRequested = new Signal(this);\n this.addClass('lm-DockPanel');\n this._document = options.document || document;\n this._mode = options.mode || 'multiple-document';\n this._renderer = options.renderer || DockPanel.defaultRenderer;\n this._edges = options.edges || Private$5.DEFAULT_EDGES;\n if (options.tabsMovable !== undefined) {\n this._tabsMovable = options.tabsMovable;\n }\n if (options.tabsConstrained !== undefined) {\n this._tabsConstrained = options.tabsConstrained;\n }\n if (options.addButtonEnabled !== undefined) {\n this._addButtonEnabled = options.addButtonEnabled;\n }\n // Toggle the CSS mode attribute.\n this.dataset['mode'] = this._mode;\n // Create the delegate renderer for the layout.\n let renderer = {\n createTabBar: () => this._createTabBar(),\n createHandle: () => this._createHandle()\n };\n // Set up the dock layout for the panel.\n this.layout = new DockLayout({\n document: this._document,\n renderer,\n spacing: options.spacing,\n hiddenMode: options.hiddenMode\n });\n // Set up the overlay drop indicator.\n this.overlay = options.overlay || new DockPanel.Overlay();\n this.node.appendChild(this.overlay.node);\n }\n /**\n * Dispose of the resources held by the panel.\n */\n dispose() {\n // Ensure the mouse is released.\n this._releaseMouse();\n // Hide the overlay.\n this.overlay.hide(0);\n // Cancel a drag if one is in progress.\n if (this._drag) {\n this._drag.dispose();\n }\n // Dispose of the base class.\n super.dispose();\n }\n /**\n * The method for hiding widgets.\n */\n get hiddenMode() {\n return this.layout.hiddenMode;\n }\n /**\n * Set the method for hiding widgets.\n */\n set hiddenMode(v) {\n this.layout.hiddenMode = v;\n }\n /**\n * A signal emitted when the layout configuration is modified.\n *\n * #### Notes\n * This signal is emitted whenever the current layout configuration\n * may have changed.\n *\n * This signal is emitted asynchronously in a collapsed fashion, so\n * that multiple synchronous modifications results in only a single\n * emit of the signal.\n */\n get layoutModified() {\n return this._layoutModified;\n }\n /**\n * A signal emitted when the add button on a tab bar is clicked.\n *\n */\n get addRequested() {\n return this._addRequested;\n }\n /**\n * The renderer used by the dock panel.\n */\n get renderer() {\n return this.layout.renderer;\n }\n /**\n * Get the spacing between the widgets.\n */\n get spacing() {\n return this.layout.spacing;\n }\n /**\n * Set the spacing between the widgets.\n */\n set spacing(value) {\n this.layout.spacing = value;\n }\n /**\n * Get the mode for the dock panel.\n */\n get mode() {\n return this._mode;\n }\n /**\n * Set the mode for the dock panel.\n *\n * #### Notes\n * Changing the mode is a destructive operation with respect to the\n * panel's layout configuration. If layout state must be preserved,\n * save the current layout config before changing the mode.\n */\n set mode(value) {\n // Bail early if the mode does not change.\n if (this._mode === value) {\n return;\n }\n // Update the internal mode.\n this._mode = value;\n // Toggle the CSS mode attribute.\n this.dataset['mode'] = value;\n // Get the layout for the panel.\n let layout = this.layout;\n // Configure the layout for the specified mode.\n switch (value) {\n case 'multiple-document':\n for (const tabBar of layout.tabBars()) {\n tabBar.show();\n }\n break;\n case 'single-document':\n layout.restoreLayout(Private$5.createSingleDocumentConfig(this));\n break;\n default:\n throw 'unreachable';\n }\n // Schedule an emit of the layout modified signal.\n MessageLoop.postMessage(this, Private$5.LayoutModified);\n }\n /**\n * Whether the tabs can be dragged / moved at runtime.\n */\n get tabsMovable() {\n return this._tabsMovable;\n }\n /**\n * Enable / Disable draggable / movable tabs.\n */\n set tabsMovable(value) {\n this._tabsMovable = value;\n for (const tabBar of this.tabBars()) {\n tabBar.tabsMovable = value;\n }\n }\n /**\n * Whether the tabs are constrained to their source dock panel\n */\n get tabsConstrained() {\n return this._tabsConstrained;\n }\n /**\n * Constrain/Allow tabs to be dragged outside of this dock panel\n */\n set tabsConstrained(value) {\n this._tabsConstrained = value;\n }\n /**\n * Whether the add buttons for each tab bar are enabled.\n */\n get addButtonEnabled() {\n return this._addButtonEnabled;\n }\n /**\n * Set whether the add buttons for each tab bar are enabled.\n */\n set addButtonEnabled(value) {\n this._addButtonEnabled = value;\n for (const tabBar of this.tabBars()) {\n tabBar.addButtonEnabled = value;\n }\n }\n /**\n * Whether the dock panel is empty.\n */\n get isEmpty() {\n return this.layout.isEmpty;\n }\n /**\n * Create an iterator over the user widgets in the panel.\n *\n * @returns A new iterator over the user widgets in the panel.\n *\n * #### Notes\n * This iterator does not include the generated tab bars.\n */\n *widgets() {\n yield* this.layout.widgets();\n }\n /**\n * Create an iterator over the selected widgets in the panel.\n *\n * @returns A new iterator over the selected user widgets.\n *\n * #### Notes\n * This iterator yields the widgets corresponding to the current tab\n * of each tab bar in the panel.\n */\n *selectedWidgets() {\n yield* this.layout.selectedWidgets();\n }\n /**\n * Create an iterator over the tab bars in the panel.\n *\n * @returns A new iterator over the tab bars in the panel.\n *\n * #### Notes\n * This iterator does not include the user widgets.\n */\n *tabBars() {\n yield* this.layout.tabBars();\n }\n /**\n * Create an iterator over the handles in the panel.\n *\n * @returns A new iterator over the handles in the panel.\n */\n *handles() {\n yield* this.layout.handles();\n }\n /**\n * Select a specific widget in the dock panel.\n *\n * @param widget - The widget of interest.\n *\n * #### Notes\n * This will make the widget the current widget in its tab area.\n */\n selectWidget(widget) {\n // Find the tab bar which contains the widget.\n let tabBar = find(this.tabBars(), bar => {\n return bar.titles.indexOf(widget.title) !== -1;\n });\n // Throw an error if no tab bar is found.\n if (!tabBar) {\n throw new Error('Widget is not contained in the dock panel.');\n }\n // Ensure the widget is the current widget.\n tabBar.currentTitle = widget.title;\n }\n /**\n * Activate a specified widget in the dock panel.\n *\n * @param widget - The widget of interest.\n *\n * #### Notes\n * This will select and activate the given widget.\n */\n activateWidget(widget) {\n this.selectWidget(widget);\n widget.activate();\n }\n /**\n * Save the current layout configuration of the dock panel.\n *\n * @returns A new config object for the current layout state.\n *\n * #### Notes\n * The return value can be provided to the `restoreLayout` method\n * in order to restore the layout to its current configuration.\n */\n saveLayout() {\n return this.layout.saveLayout();\n }\n /**\n * Restore the layout to a previously saved configuration.\n *\n * @param config - The layout configuration to restore.\n *\n * #### Notes\n * Widgets which currently belong to the layout but which are not\n * contained in the config will be unparented.\n *\n * The dock panel automatically reverts to `'multiple-document'`\n * mode when a layout config is restored.\n */\n restoreLayout(config) {\n // Reset the mode.\n this._mode = 'multiple-document';\n // Restore the layout.\n this.layout.restoreLayout(config);\n // Flush the message loop on IE and Edge to prevent flicker.\n if (Platform.IS_EDGE || Platform.IS_IE) {\n MessageLoop.flush();\n }\n // Schedule an emit of the layout modified signal.\n MessageLoop.postMessage(this, Private$5.LayoutModified);\n }\n /**\n * Add a widget to the dock panel.\n *\n * @param widget - The widget to add to the dock panel.\n *\n * @param options - The additional options for adding the widget.\n *\n * #### Notes\n * If the panel is in single document mode, the options are ignored\n * and the widget is always added as tab in the hidden tab bar.\n */\n addWidget(widget, options = {}) {\n // Add the widget to the layout.\n if (this._mode === 'single-document') {\n this.layout.addWidget(widget);\n }\n else {\n this.layout.addWidget(widget, options);\n }\n // Schedule an emit of the layout modified signal.\n MessageLoop.postMessage(this, Private$5.LayoutModified);\n }\n /**\n * Process a message sent to the widget.\n *\n * @param msg - The message sent to the widget.\n */\n processMessage(msg) {\n if (msg.type === 'layout-modified') {\n this._layoutModified.emit(undefined);\n }\n else {\n super.processMessage(msg);\n }\n }\n /**\n * Handle the DOM events for the dock panel.\n *\n * @param event - The DOM event sent to the panel.\n *\n * #### Notes\n * This method implements the DOM `EventListener` interface and is\n * called in response to events on the panel's DOM node. It should\n * not be called directly by user code.\n */\n handleEvent(event) {\n switch (event.type) {\n case 'lm-dragenter':\n this._evtDragEnter(event);\n break;\n case 'lm-dragleave':\n this._evtDragLeave(event);\n break;\n case 'lm-dragover':\n this._evtDragOver(event);\n break;\n case 'lm-drop':\n this._evtDrop(event);\n break;\n case 'pointerdown':\n this._evtPointerDown(event);\n break;\n case 'pointermove':\n this._evtPointerMove(event);\n break;\n case 'pointerup':\n this._evtPointerUp(event);\n break;\n case 'keydown':\n this._evtKeyDown(event);\n break;\n case 'contextmenu':\n event.preventDefault();\n event.stopPropagation();\n break;\n }\n }\n /**\n * A message handler invoked on a `'before-attach'` message.\n */\n onBeforeAttach(msg) {\n this.node.addEventListener('lm-dragenter', this);\n this.node.addEventListener('lm-dragleave', this);\n this.node.addEventListener('lm-dragover', this);\n this.node.addEventListener('lm-drop', this);\n this.node.addEventListener('pointerdown', this);\n }\n /**\n * A message handler invoked on an `'after-detach'` message.\n */\n onAfterDetach(msg) {\n this.node.removeEventListener('lm-dragenter', this);\n this.node.removeEventListener('lm-dragleave', this);\n this.node.removeEventListener('lm-dragover', this);\n this.node.removeEventListener('lm-drop', this);\n this.node.removeEventListener('pointerdown', this);\n this._releaseMouse();\n }\n /**\n * A message handler invoked on a `'child-added'` message.\n */\n onChildAdded(msg) {\n // Ignore the generated tab bars.\n if (Private$5.isGeneratedTabBarProperty.get(msg.child)) {\n return;\n }\n // Add the widget class to the child.\n msg.child.addClass('lm-DockPanel-widget');\n }\n /**\n * A message handler invoked on a `'child-removed'` message.\n */\n onChildRemoved(msg) {\n // Ignore the generated tab bars.\n if (Private$5.isGeneratedTabBarProperty.get(msg.child)) {\n return;\n }\n // Remove the widget class from the child.\n msg.child.removeClass('lm-DockPanel-widget');\n // Schedule an emit of the layout modified signal.\n MessageLoop.postMessage(this, Private$5.LayoutModified);\n }\n /**\n * Handle the `'lm-dragenter'` event for the dock panel.\n */\n _evtDragEnter(event) {\n // If the factory mime type is present, mark the event as\n // handled in order to get the rest of the drag events.\n if (event.mimeData.hasData('application/vnd.lumino.widget-factory')) {\n event.preventDefault();\n event.stopPropagation();\n }\n }\n /**\n * Handle the `'lm-dragleave'` event for the dock panel.\n */\n _evtDragLeave(event) {\n // Mark the event as handled.\n event.preventDefault();\n if (this._tabsConstrained && event.source !== this)\n return;\n event.stopPropagation();\n // The new target might be a descendant, so we might still handle the drop.\n // Hide asynchronously so that if a lm-dragover event bubbles up to us, the\n // hide is cancelled by the lm-dragover handler's show overlay logic.\n this.overlay.hide(1);\n }\n /**\n * Handle the `'lm-dragover'` event for the dock panel.\n */\n _evtDragOver(event) {\n // Mark the event as handled.\n event.preventDefault();\n // Show the drop indicator overlay and update the drop\n // action based on the drop target zone under the mouse.\n if ((this._tabsConstrained && event.source !== this) ||\n this._showOverlay(event.clientX, event.clientY) === 'invalid') {\n event.dropAction = 'none';\n }\n else {\n event.stopPropagation();\n event.dropAction = event.proposedAction;\n }\n }\n /**\n * Handle the `'lm-drop'` event for the dock panel.\n */\n _evtDrop(event) {\n // Mark the event as handled.\n event.preventDefault();\n // Hide the drop indicator overlay.\n this.overlay.hide(0);\n // Bail if the proposed action is to do nothing.\n if (event.proposedAction === 'none') {\n event.dropAction = 'none';\n return;\n }\n // Find the drop target under the mouse.\n let { clientX, clientY } = event;\n let { zone, target } = Private$5.findDropTarget(this, clientX, clientY, this._edges);\n // Bail if the drop zone is invalid.\n if ((this._tabsConstrained && event.source !== this) ||\n zone === 'invalid') {\n event.dropAction = 'none';\n return;\n }\n // Bail if the factory mime type has invalid data.\n let mimeData = event.mimeData;\n let factory = mimeData.getData('application/vnd.lumino.widget-factory');\n if (typeof factory !== 'function') {\n event.dropAction = 'none';\n return;\n }\n // Bail if the factory does not produce a widget.\n let widget = factory();\n if (!(widget instanceof Widget)) {\n event.dropAction = 'none';\n return;\n }\n // Bail if the widget is an ancestor of the dock panel.\n if (widget.contains(this)) {\n event.dropAction = 'none';\n return;\n }\n // Find the reference widget for the drop target.\n let ref = target ? Private$5.getDropRef(target.tabBar) : null;\n // Add the widget according to the indicated drop zone.\n switch (zone) {\n case 'root-all':\n this.addWidget(widget);\n break;\n case 'root-top':\n this.addWidget(widget, { mode: 'split-top' });\n break;\n case 'root-left':\n this.addWidget(widget, { mode: 'split-left' });\n break;\n case 'root-right':\n this.addWidget(widget, { mode: 'split-right' });\n break;\n case 'root-bottom':\n this.addWidget(widget, { mode: 'split-bottom' });\n break;\n case 'widget-all':\n this.addWidget(widget, { mode: 'tab-after', ref });\n break;\n case 'widget-top':\n this.addWidget(widget, { mode: 'split-top', ref });\n break;\n case 'widget-left':\n this.addWidget(widget, { mode: 'split-left', ref });\n break;\n case 'widget-right':\n this.addWidget(widget, { mode: 'split-right', ref });\n break;\n case 'widget-bottom':\n this.addWidget(widget, { mode: 'split-bottom', ref });\n break;\n case 'widget-tab':\n this.addWidget(widget, { mode: 'tab-after', ref });\n break;\n default:\n throw 'unreachable';\n }\n // Accept the proposed drop action.\n event.dropAction = event.proposedAction;\n // Stop propagation if we have not bailed so far.\n event.stopPropagation();\n // Activate the dropped widget.\n this.activateWidget(widget);\n }\n /**\n * Handle the `'keydown'` event for the dock panel.\n */\n _evtKeyDown(event) {\n // Stop input events during drag.\n event.preventDefault();\n event.stopPropagation();\n // Release the mouse if `Escape` is pressed.\n if (event.keyCode === 27) {\n // Finalize the mouse release.\n this._releaseMouse();\n // Schedule an emit of the layout modified signal.\n MessageLoop.postMessage(this, Private$5.LayoutModified);\n }\n }\n /**\n * Handle the `'pointerdown'` event for the dock panel.\n */\n _evtPointerDown(event) {\n // Do nothing if the left mouse button is not pressed.\n if (event.button !== 0) {\n return;\n }\n // Find the handle which contains the mouse target, if any.\n let layout = this.layout;\n let target = event.target;\n let handle = find(layout.handles(), handle => handle.contains(target));\n if (!handle) {\n return;\n }\n // Stop the event when a handle is pressed.\n event.preventDefault();\n event.stopPropagation();\n // Add the extra document listeners.\n this._document.addEventListener('keydown', this, true);\n this._document.addEventListener('pointerup', this, true);\n this._document.addEventListener('pointermove', this, true);\n this._document.addEventListener('contextmenu', this, true);\n // Compute the offset deltas for the handle press.\n let rect = handle.getBoundingClientRect();\n let deltaX = event.clientX - rect.left;\n let deltaY = event.clientY - rect.top;\n // Override the cursor and store the press data.\n let style = window.getComputedStyle(handle);\n let override = Drag.overrideCursor(style.cursor, this._document);\n this._pressData = { handle, deltaX, deltaY, override };\n }\n /**\n * Handle the `'pointermove'` event for the dock panel.\n */\n _evtPointerMove(event) {\n // Bail early if no drag is in progress.\n if (!this._pressData) {\n return;\n }\n // Stop the event when dragging a handle.\n event.preventDefault();\n event.stopPropagation();\n // Compute the desired offset position for the handle.\n let rect = this.node.getBoundingClientRect();\n let xPos = event.clientX - rect.left - this._pressData.deltaX;\n let yPos = event.clientY - rect.top - this._pressData.deltaY;\n // Set the handle as close to the desired position as possible.\n let layout = this.layout;\n layout.moveHandle(this._pressData.handle, xPos, yPos);\n }\n /**\n * Handle the `'pointerup'` event for the dock panel.\n */\n _evtPointerUp(event) {\n // Do nothing if the left mouse button is not released.\n if (event.button !== 0) {\n return;\n }\n // Stop the event when releasing a handle.\n event.preventDefault();\n event.stopPropagation();\n // Finalize the mouse release.\n this._releaseMouse();\n // Schedule an emit of the layout modified signal.\n MessageLoop.postMessage(this, Private$5.LayoutModified);\n }\n /**\n * Release the mouse grab for the dock panel.\n */\n _releaseMouse() {\n // Bail early if no drag is in progress.\n if (!this._pressData) {\n return;\n }\n // Clear the override cursor.\n this._pressData.override.dispose();\n this._pressData = null;\n // Remove the extra document listeners.\n this._document.removeEventListener('keydown', this, true);\n this._document.removeEventListener('pointerup', this, true);\n this._document.removeEventListener('pointermove', this, true);\n this._document.removeEventListener('contextmenu', this, true);\n }\n /**\n * Show the overlay indicator at the given client position.\n *\n * Returns the drop zone at the specified client position.\n *\n * #### Notes\n * If the position is not over a valid zone, the overlay is hidden.\n */\n _showOverlay(clientX, clientY) {\n // Find the dock target for the given client position.\n let { zone, target } = Private$5.findDropTarget(this, clientX, clientY, this._edges);\n // If the drop zone is invalid, hide the overlay and bail.\n if (zone === 'invalid') {\n this.overlay.hide(100);\n return zone;\n }\n // Setup the variables needed to compute the overlay geometry.\n let top;\n let left;\n let right;\n let bottom;\n let box = ElementExt.boxSizing(this.node); // TODO cache this?\n let rect = this.node.getBoundingClientRect();\n // Compute the overlay geometry based on the dock zone.\n switch (zone) {\n case 'root-all':\n top = box.paddingTop;\n left = box.paddingLeft;\n right = box.paddingRight;\n bottom = box.paddingBottom;\n break;\n case 'root-top':\n top = box.paddingTop;\n left = box.paddingLeft;\n right = box.paddingRight;\n bottom = rect.height * Private$5.GOLDEN_RATIO;\n break;\n case 'root-left':\n top = box.paddingTop;\n left = box.paddingLeft;\n right = rect.width * Private$5.GOLDEN_RATIO;\n bottom = box.paddingBottom;\n break;\n case 'root-right':\n top = box.paddingTop;\n left = rect.width * Private$5.GOLDEN_RATIO;\n right = box.paddingRight;\n bottom = box.paddingBottom;\n break;\n case 'root-bottom':\n top = rect.height * Private$5.GOLDEN_RATIO;\n left = box.paddingLeft;\n right = box.paddingRight;\n bottom = box.paddingBottom;\n break;\n case 'widget-all':\n top = target.top;\n left = target.left;\n right = target.right;\n bottom = target.bottom;\n break;\n case 'widget-top':\n top = target.top;\n left = target.left;\n right = target.right;\n bottom = target.bottom + target.height / 2;\n break;\n case 'widget-left':\n top = target.top;\n left = target.left;\n right = target.right + target.width / 2;\n bottom = target.bottom;\n break;\n case 'widget-right':\n top = target.top;\n left = target.left + target.width / 2;\n right = target.right;\n bottom = target.bottom;\n break;\n case 'widget-bottom':\n top = target.top + target.height / 2;\n left = target.left;\n right = target.right;\n bottom = target.bottom;\n break;\n case 'widget-tab': {\n const tabHeight = target.tabBar.node.getBoundingClientRect().height;\n top = target.top;\n left = target.left;\n right = target.right;\n bottom = target.bottom + target.height - tabHeight;\n break;\n }\n default:\n throw 'unreachable';\n }\n // Show the overlay with the computed geometry.\n this.overlay.show({ top, left, right, bottom });\n // Finally, return the computed drop zone.\n return zone;\n }\n /**\n * Create a new tab bar for use by the panel.\n */\n _createTabBar() {\n // Create the tab bar.\n let tabBar = this._renderer.createTabBar(this._document);\n // Set the generated tab bar property for the tab bar.\n Private$5.isGeneratedTabBarProperty.set(tabBar, true);\n // Hide the tab bar when in single document mode.\n if (this._mode === 'single-document') {\n tabBar.hide();\n }\n // Enforce necessary tab bar behavior.\n // TODO do we really want to enforce *all* of these?\n tabBar.tabsMovable = this._tabsMovable;\n tabBar.allowDeselect = false;\n tabBar.addButtonEnabled = this._addButtonEnabled;\n tabBar.removeBehavior = 'select-previous-tab';\n tabBar.insertBehavior = 'select-tab-if-needed';\n // Connect the signal handlers for the tab bar.\n tabBar.tabMoved.connect(this._onTabMoved, this);\n tabBar.currentChanged.connect(this._onCurrentChanged, this);\n tabBar.tabCloseRequested.connect(this._onTabCloseRequested, this);\n tabBar.tabDetachRequested.connect(this._onTabDetachRequested, this);\n tabBar.tabActivateRequested.connect(this._onTabActivateRequested, this);\n tabBar.addRequested.connect(this._onTabAddRequested, this);\n // Return the initialized tab bar.\n return tabBar;\n }\n /**\n * Create a new handle for use by the panel.\n */\n _createHandle() {\n return this._renderer.createHandle();\n }\n /**\n * Handle the `tabMoved` signal from a tab bar.\n */\n _onTabMoved() {\n MessageLoop.postMessage(this, Private$5.LayoutModified);\n }\n /**\n * Handle the `currentChanged` signal from a tab bar.\n */\n _onCurrentChanged(sender, args) {\n // Extract the previous and current title from the args.\n let { previousTitle, currentTitle } = args;\n // Hide the previous widget.\n if (previousTitle) {\n previousTitle.owner.hide();\n }\n // Show the current widget.\n if (currentTitle) {\n currentTitle.owner.show();\n }\n // Flush the message loop on IE and Edge to prevent flicker.\n if (Platform.IS_EDGE || Platform.IS_IE) {\n MessageLoop.flush();\n }\n // Schedule an emit of the layout modified signal.\n MessageLoop.postMessage(this, Private$5.LayoutModified);\n }\n /**\n * Handle the `addRequested` signal from a tab bar.\n */\n _onTabAddRequested(sender) {\n this._addRequested.emit(sender);\n }\n /**\n * Handle the `tabActivateRequested` signal from a tab bar.\n */\n _onTabActivateRequested(sender, args) {\n args.title.owner.activate();\n }\n /**\n * Handle the `tabCloseRequested` signal from a tab bar.\n */\n _onTabCloseRequested(sender, args) {\n args.title.owner.close();\n }\n /**\n * Handle the `tabDetachRequested` signal from a tab bar.\n */\n _onTabDetachRequested(sender, args) {\n // Do nothing if a drag is already in progress.\n if (this._drag) {\n return;\n }\n // Release the tab bar's hold on the mouse.\n sender.releaseMouse();\n // Extract the data from the args.\n let { title, tab, clientX, clientY, offset } = args;\n // Setup the mime data for the drag operation.\n let mimeData = new MimeData();\n let factory = () => title.owner;\n mimeData.setData('application/vnd.lumino.widget-factory', factory);\n // Create the drag image for the drag operation.\n let dragImage = tab.cloneNode(true);\n if (offset) {\n dragImage.style.top = `-${offset.y}px`;\n dragImage.style.left = `-${offset.x}px`;\n }\n // Create the drag object to manage the drag-drop operation.\n this._drag = new Drag({\n document: this._document,\n mimeData,\n dragImage,\n proposedAction: 'move',\n supportedActions: 'move',\n source: this\n });\n // Hide the tab node in the original tab.\n tab.classList.add('lm-mod-hidden');\n let cleanup = () => {\n this._drag = null;\n tab.classList.remove('lm-mod-hidden');\n };\n // Start the drag operation and cleanup when done.\n this._drag.start(clientX, clientY).then(cleanup);\n }\n}\n/**\n * The namespace for the `DockPanel` class statics.\n */\n(function (DockPanel) {\n /**\n * A concrete implementation of `IOverlay`.\n *\n * This is the default overlay implementation for a dock panel.\n */\n class Overlay {\n /**\n * Construct a new overlay.\n */\n constructor() {\n this._timer = -1;\n this._hidden = true;\n this.node = document.createElement('div');\n this.node.classList.add('lm-DockPanel-overlay');\n this.node.classList.add('lm-mod-hidden');\n this.node.style.position = 'absolute';\n this.node.style.contain = 'strict';\n }\n /**\n * Show the overlay using the given overlay geometry.\n *\n * @param geo - The desired geometry for the overlay.\n */\n show(geo) {\n // Update the position of the overlay.\n let style = this.node.style;\n style.top = `${geo.top}px`;\n style.left = `${geo.left}px`;\n style.right = `${geo.right}px`;\n style.bottom = `${geo.bottom}px`;\n // Clear any pending hide timer.\n clearTimeout(this._timer);\n this._timer = -1;\n // If the overlay is already visible, we're done.\n if (!this._hidden) {\n return;\n }\n // Clear the hidden flag.\n this._hidden = false;\n // Finally, show the overlay.\n this.node.classList.remove('lm-mod-hidden');\n }\n /**\n * Hide the overlay node.\n *\n * @param delay - The delay (in ms) before hiding the overlay.\n * A delay value <= 0 will hide the overlay immediately.\n */\n hide(delay) {\n // Do nothing if the overlay is already hidden.\n if (this._hidden) {\n return;\n }\n // Hide immediately if the delay is <= 0.\n if (delay <= 0) {\n clearTimeout(this._timer);\n this._timer = -1;\n this._hidden = true;\n this.node.classList.add('lm-mod-hidden');\n return;\n }\n // Do nothing if a hide is already pending.\n if (this._timer !== -1) {\n return;\n }\n // Otherwise setup the hide timer.\n this._timer = window.setTimeout(() => {\n this._timer = -1;\n this._hidden = true;\n this.node.classList.add('lm-mod-hidden');\n }, delay);\n }\n }\n DockPanel.Overlay = Overlay;\n /**\n * The default implementation of `IRenderer`.\n */\n class Renderer {\n /**\n * Create a new tab bar for use with a dock panel.\n *\n * @returns A new tab bar for a dock panel.\n */\n createTabBar(document) {\n let bar = new TabBar({ document });\n bar.addClass('lm-DockPanel-tabBar');\n return bar;\n }\n /**\n * Create a new handle node for use with a dock panel.\n *\n * @returns A new handle node for a dock panel.\n */\n createHandle() {\n let handle = document.createElement('div');\n handle.className = 'lm-DockPanel-handle';\n return handle;\n }\n }\n DockPanel.Renderer = Renderer;\n /**\n * The default `Renderer` instance.\n */\n DockPanel.defaultRenderer = new Renderer();\n})(DockPanel || (DockPanel = {}));\n/**\n * The namespace for the module implementation details.\n */\nvar Private$5;\n(function (Private) {\n /**\n * A fraction used for sizing root panels; ~= `1 / golden_ratio`.\n */\n Private.GOLDEN_RATIO = 0.618;\n /**\n * The default sizes for the edge drop zones, in pixels.\n */\n Private.DEFAULT_EDGES = {\n /**\n * The size of the top edge dock zone for the root panel, in pixels.\n * This is different from the others to distinguish between the top\n * tab bar and the top root zone.\n */\n top: 12,\n /**\n * The size of the edge dock zone for the root panel, in pixels.\n */\n right: 40,\n /**\n * The size of the edge dock zone for the root panel, in pixels.\n */\n bottom: 40,\n /**\n * The size of the edge dock zone for the root panel, in pixels.\n */\n left: 40\n };\n /**\n * A singleton `'layout-modified'` conflatable message.\n */\n Private.LayoutModified = new ConflatableMessage('layout-modified');\n /**\n * An attached property used to track generated tab bars.\n */\n Private.isGeneratedTabBarProperty = new AttachedProperty({\n name: 'isGeneratedTabBar',\n create: () => false\n });\n /**\n * Create a single document config for the widgets in a dock panel.\n */\n function createSingleDocumentConfig(panel) {\n // Return an empty config if the panel is empty.\n if (panel.isEmpty) {\n return { main: null };\n }\n // Get a flat array of the widgets in the panel.\n let widgets = Array.from(panel.widgets());\n // Get the first selected widget in the panel.\n let selected = panel.selectedWidgets().next().value;\n // Compute the current index for the new config.\n let currentIndex = selected ? widgets.indexOf(selected) : -1;\n // Return the single document config.\n return { main: { type: 'tab-area', widgets, currentIndex } };\n }\n Private.createSingleDocumentConfig = createSingleDocumentConfig;\n /**\n * Find the drop target at the given client position.\n */\n function findDropTarget(panel, clientX, clientY, edges) {\n // Bail if the mouse is not over the dock panel.\n if (!ElementExt.hitTest(panel.node, clientX, clientY)) {\n return { zone: 'invalid', target: null };\n }\n // Look up the layout for the panel.\n let layout = panel.layout;\n // If the layout is empty, indicate the entire root drop zone.\n if (layout.isEmpty) {\n return { zone: 'root-all', target: null };\n }\n // Test the edge zones when in multiple document mode.\n if (panel.mode === 'multiple-document') {\n // Get the client rect for the dock panel.\n let panelRect = panel.node.getBoundingClientRect();\n // Compute the distance to each edge of the panel.\n let pl = clientX - panelRect.left + 1;\n let pt = clientY - panelRect.top + 1;\n let pr = panelRect.right - clientX;\n let pb = panelRect.bottom - clientY;\n // Find the minimum distance to an edge.\n let pd = Math.min(pt, pr, pb, pl);\n // Return a root zone if the mouse is within an edge.\n switch (pd) {\n case pt:\n if (pt < edges.top) {\n return { zone: 'root-top', target: null };\n }\n break;\n case pr:\n if (pr < edges.right) {\n return { zone: 'root-right', target: null };\n }\n break;\n case pb:\n if (pb < edges.bottom) {\n return { zone: 'root-bottom', target: null };\n }\n break;\n case pl:\n if (pl < edges.left) {\n return { zone: 'root-left', target: null };\n }\n break;\n default:\n throw 'unreachable';\n }\n }\n // Hit test the dock layout at the given client position.\n let target = layout.hitTestTabAreas(clientX, clientY);\n // Bail if no target area was found.\n if (!target) {\n return { zone: 'invalid', target: null };\n }\n // Return the whole tab area when in single document mode.\n if (panel.mode === 'single-document') {\n return { zone: 'widget-all', target };\n }\n // Compute the distance to each edge of the tab area.\n let al = target.x - target.left + 1;\n let at = target.y - target.top + 1;\n let ar = target.left + target.width - target.x;\n let ab = target.top + target.height - target.y;\n const tabHeight = target.tabBar.node.getBoundingClientRect().height;\n if (at < tabHeight) {\n return { zone: 'widget-tab', target };\n }\n // Get the X and Y edge sizes for the area.\n let rx = Math.round(target.width / 3);\n let ry = Math.round(target.height / 3);\n // If the mouse is not within an edge, indicate the entire area.\n if (al > rx && ar > rx && at > ry && ab > ry) {\n return { zone: 'widget-all', target };\n }\n // Scale the distances by the slenderness ratio.\n al /= rx;\n at /= ry;\n ar /= rx;\n ab /= ry;\n // Find the minimum distance to the area edge.\n let ad = Math.min(al, at, ar, ab);\n // Find the widget zone for the area edge.\n let zone;\n switch (ad) {\n case al:\n zone = 'widget-left';\n break;\n case at:\n zone = 'widget-top';\n break;\n case ar:\n zone = 'widget-right';\n break;\n case ab:\n zone = 'widget-bottom';\n break;\n default:\n throw 'unreachable';\n }\n // Return the final drop target.\n return { zone, target };\n }\n Private.findDropTarget = findDropTarget;\n /**\n * Get the drop reference widget for a tab bar.\n */\n function getDropRef(tabBar) {\n if (tabBar.titles.length === 0) {\n return null;\n }\n if (tabBar.currentTitle) {\n return tabBar.currentTitle.owner;\n }\n return tabBar.titles[tabBar.titles.length - 1].owner;\n }\n Private.getDropRef = getDropRef;\n})(Private$5 || (Private$5 = {}));\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * A class which tracks focus among a set of widgets.\n *\n * This class is useful when code needs to keep track of the most\n * recently focused widget(s) among a set of related widgets.\n */\nclass FocusTracker {\n constructor() {\n this._counter = 0;\n this._widgets = [];\n this._activeWidget = null;\n this._currentWidget = null;\n this._numbers = new Map();\n this._nodes = new Map();\n this._activeChanged = new Signal(this);\n this._currentChanged = new Signal(this);\n }\n /**\n * Dispose of the resources held by the tracker.\n */\n dispose() {\n // Do nothing if the tracker is already disposed.\n if (this._counter < 0) {\n return;\n }\n // Mark the tracker as disposed.\n this._counter = -1;\n // Clear the connections for the tracker.\n Signal.clearData(this);\n // Remove all event listeners.\n for (const widget of this._widgets) {\n widget.node.removeEventListener('focus', this, true);\n widget.node.removeEventListener('blur', this, true);\n }\n // Clear the internal data structures.\n this._activeWidget = null;\n this._currentWidget = null;\n this._nodes.clear();\n this._numbers.clear();\n this._widgets.length = 0;\n }\n /**\n * A signal emitted when the current widget has changed.\n */\n get currentChanged() {\n return this._currentChanged;\n }\n /**\n * A signal emitted when the active widget has changed.\n */\n get activeChanged() {\n return this._activeChanged;\n }\n /**\n * A flag indicating whether the tracker is disposed.\n */\n get isDisposed() {\n return this._counter < 0;\n }\n /**\n * The current widget in the tracker.\n *\n * #### Notes\n * The current widget is the widget among the tracked widgets which\n * has the *descendant node* which has most recently been focused.\n *\n * The current widget will not be updated if the node loses focus. It\n * will only be updated when a different tracked widget gains focus.\n *\n * If the current widget is removed from the tracker, the previous\n * current widget will be restored.\n *\n * This behavior is intended to follow a user's conceptual model of\n * a semantically \"current\" widget, where the \"last thing of type X\"\n * to be interacted with is the \"current instance of X\", regardless\n * of whether that instance still has focus.\n */\n get currentWidget() {\n return this._currentWidget;\n }\n /**\n * The active widget in the tracker.\n *\n * #### Notes\n * The active widget is the widget among the tracked widgets which\n * has the *descendant node* which is currently focused.\n */\n get activeWidget() {\n return this._activeWidget;\n }\n /**\n * A read only array of the widgets being tracked.\n */\n get widgets() {\n return this._widgets;\n }\n /**\n * Get the focus number for a particular widget in the tracker.\n *\n * @param widget - The widget of interest.\n *\n * @returns The focus number for the given widget, or `-1` if the\n * widget has not had focus since being added to the tracker, or\n * is not contained by the tracker.\n *\n * #### Notes\n * The focus number indicates the relative order in which the widgets\n * have gained focus. A widget with a larger number has gained focus\n * more recently than a widget with a smaller number.\n *\n * The `currentWidget` will always have the largest focus number.\n *\n * All widgets start with a focus number of `-1`, which indicates that\n * the widget has not been focused since being added to the tracker.\n */\n focusNumber(widget) {\n let n = this._numbers.get(widget);\n return n === undefined ? -1 : n;\n }\n /**\n * Test whether the focus tracker contains a given widget.\n *\n * @param widget - The widget of interest.\n *\n * @returns `true` if the widget is tracked, `false` otherwise.\n */\n has(widget) {\n return this._numbers.has(widget);\n }\n /**\n * Add a widget to the focus tracker.\n *\n * @param widget - The widget of interest.\n *\n * #### Notes\n * A widget will be automatically removed from the tracker if it\n * is disposed after being added.\n *\n * If the widget is already tracked, this is a no-op.\n */\n add(widget) {\n // Do nothing if the widget is already tracked.\n if (this._numbers.has(widget)) {\n return;\n }\n // Test whether the widget has focus.\n let focused = widget.node.contains(document.activeElement);\n // Set up the initial focus number.\n let n = focused ? this._counter++ : -1;\n // Add the widget to the internal data structures.\n this._widgets.push(widget);\n this._numbers.set(widget, n);\n this._nodes.set(widget.node, widget);\n // Set up the event listeners. The capturing phase must be used\n // since the 'focus' and 'blur' events don't bubble and Firefox\n // doesn't support the 'focusin' or 'focusout' events.\n widget.node.addEventListener('focus', this, true);\n widget.node.addEventListener('blur', this, true);\n // Connect the disposed signal handler.\n widget.disposed.connect(this._onWidgetDisposed, this);\n // Set the current and active widgets if needed.\n if (focused) {\n this._setWidgets(widget, widget);\n }\n }\n /**\n * Remove a widget from the focus tracker.\n *\n * #### Notes\n * If the widget is the `currentWidget`, the previous current widget\n * will become the new `currentWidget`.\n *\n * A widget will be automatically removed from the tracker if it\n * is disposed after being added.\n *\n * If the widget is not tracked, this is a no-op.\n */\n remove(widget) {\n // Bail early if the widget is not tracked.\n if (!this._numbers.has(widget)) {\n return;\n }\n // Disconnect the disposed signal handler.\n widget.disposed.disconnect(this._onWidgetDisposed, this);\n // Remove the event listeners.\n widget.node.removeEventListener('focus', this, true);\n widget.node.removeEventListener('blur', this, true);\n // Remove the widget from the internal data structures.\n ArrayExt.removeFirstOf(this._widgets, widget);\n this._nodes.delete(widget.node);\n this._numbers.delete(widget);\n // Bail early if the widget is not the current widget.\n if (this._currentWidget !== widget) {\n return;\n }\n // Filter the widgets for those which have had focus.\n let valid = this._widgets.filter(w => this._numbers.get(w) !== -1);\n // Get the valid widget with the max focus number.\n let previous = max(valid, (first, second) => {\n let a = this._numbers.get(first);\n let b = this._numbers.get(second);\n return a - b;\n }) || null;\n // Set the current and active widgets.\n this._setWidgets(previous, null);\n }\n /**\n * Handle the DOM events for the focus tracker.\n *\n * @param event - The DOM event sent to the panel.\n *\n * #### Notes\n * This method implements the DOM `EventListener` interface and is\n * called in response to events on the tracked nodes. It should\n * not be called directly by user code.\n */\n handleEvent(event) {\n switch (event.type) {\n case 'focus':\n this._evtFocus(event);\n break;\n case 'blur':\n this._evtBlur(event);\n break;\n }\n }\n /**\n * Set the current and active widgets for the tracker.\n */\n _setWidgets(current, active) {\n // Swap the current widget.\n let oldCurrent = this._currentWidget;\n this._currentWidget = current;\n // Swap the active widget.\n let oldActive = this._activeWidget;\n this._activeWidget = active;\n // Emit the `currentChanged` signal if needed.\n if (oldCurrent !== current) {\n this._currentChanged.emit({ oldValue: oldCurrent, newValue: current });\n }\n // Emit the `activeChanged` signal if needed.\n if (oldActive !== active) {\n this._activeChanged.emit({ oldValue: oldActive, newValue: active });\n }\n }\n /**\n * Handle the `'focus'` event for a tracked widget.\n */\n _evtFocus(event) {\n // Find the widget which gained focus, which is known to exist.\n let widget = this._nodes.get(event.currentTarget);\n // Update the focus number if necessary.\n if (widget !== this._currentWidget) {\n this._numbers.set(widget, this._counter++);\n }\n // Set the current and active widgets.\n this._setWidgets(widget, widget);\n }\n /**\n * Handle the `'blur'` event for a tracked widget.\n */\n _evtBlur(event) {\n // Find the widget which lost focus, which is known to exist.\n let widget = this._nodes.get(event.currentTarget);\n // Get the node which being focused after this blur.\n let focusTarget = event.relatedTarget;\n // If no other node is being focused, clear the active widget.\n if (!focusTarget) {\n this._setWidgets(this._currentWidget, null);\n return;\n }\n // Bail if the focus widget is not changing.\n if (widget.node.contains(focusTarget)) {\n return;\n }\n // If no tracked widget is being focused, clear the active widget.\n if (!find(this._widgets, w => w.node.contains(focusTarget))) {\n this._setWidgets(this._currentWidget, null);\n return;\n }\n }\n /**\n * Handle the `disposed` signal for a tracked widget.\n */\n _onWidgetDisposed(sender) {\n this.remove(sender);\n }\n}\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * A layout which arranges its widgets in a grid.\n */\nclass GridLayout extends Layout {\n /**\n * Construct a new grid layout.\n *\n * @param options - The options for initializing the layout.\n */\n constructor(options = {}) {\n super(options);\n this._dirty = false;\n this._rowSpacing = 4;\n this._columnSpacing = 4;\n this._items = [];\n this._rowStarts = [];\n this._columnStarts = [];\n this._rowSizers = [new BoxSizer()];\n this._columnSizers = [new BoxSizer()];\n this._box = null;\n if (options.rowCount !== undefined) {\n Private$4.reallocSizers(this._rowSizers, options.rowCount);\n }\n if (options.columnCount !== undefined) {\n Private$4.reallocSizers(this._columnSizers, options.columnCount);\n }\n if (options.rowSpacing !== undefined) {\n this._rowSpacing = Private$4.clampValue(options.rowSpacing);\n }\n if (options.columnSpacing !== undefined) {\n this._columnSpacing = Private$4.clampValue(options.columnSpacing);\n }\n }\n /**\n * Dispose of the resources held by the layout.\n */\n dispose() {\n // Dispose of the widgets and layout items.\n for (const item of this._items) {\n let widget = item.widget;\n item.dispose();\n widget.dispose();\n }\n // Clear the layout state.\n this._box = null;\n this._items.length = 0;\n this._rowStarts.length = 0;\n this._rowSizers.length = 0;\n this._columnStarts.length = 0;\n this._columnSizers.length = 0;\n // Dispose of the rest of the layout.\n super.dispose();\n }\n /**\n * Get the number of rows in the layout.\n */\n get rowCount() {\n return this._rowSizers.length;\n }\n /**\n * Set the number of rows in the layout.\n *\n * #### Notes\n * The minimum row count is `1`.\n */\n set rowCount(value) {\n // Do nothing if the row count does not change.\n if (value === this.rowCount) {\n return;\n }\n // Reallocate the row sizers.\n Private$4.reallocSizers(this._rowSizers, value);\n // Schedule a fit of the parent.\n if (this.parent) {\n this.parent.fit();\n }\n }\n /**\n * Get the number of columns in the layout.\n */\n get columnCount() {\n return this._columnSizers.length;\n }\n /**\n * Set the number of columns in the layout.\n *\n * #### Notes\n * The minimum column count is `1`.\n */\n set columnCount(value) {\n // Do nothing if the column count does not change.\n if (value === this.columnCount) {\n return;\n }\n // Reallocate the column sizers.\n Private$4.reallocSizers(this._columnSizers, value);\n // Schedule a fit of the parent.\n if (this.parent) {\n this.parent.fit();\n }\n }\n /**\n * Get the row spacing for the layout.\n */\n get rowSpacing() {\n return this._rowSpacing;\n }\n /**\n * Set the row spacing for the layout.\n */\n set rowSpacing(value) {\n // Clamp the spacing to the allowed range.\n value = Private$4.clampValue(value);\n // Bail if the spacing does not change\n if (this._rowSpacing === value) {\n return;\n }\n // Update the internal spacing.\n this._rowSpacing = value;\n // Schedule a fit of the parent.\n if (this.parent) {\n this.parent.fit();\n }\n }\n /**\n * Get the column spacing for the layout.\n */\n get columnSpacing() {\n return this._columnSpacing;\n }\n /**\n * Set the col spacing for the layout.\n */\n set columnSpacing(value) {\n // Clamp the spacing to the allowed range.\n value = Private$4.clampValue(value);\n // Bail if the spacing does not change\n if (this._columnSpacing === value) {\n return;\n }\n // Update the internal spacing.\n this._columnSpacing = value;\n // Schedule a fit of the parent.\n if (this.parent) {\n this.parent.fit();\n }\n }\n /**\n * Get the stretch factor for a specific row.\n *\n * @param index - The row index of interest.\n *\n * @returns The stretch factor for the row.\n *\n * #### Notes\n * This returns `-1` if the index is out of range.\n */\n rowStretch(index) {\n let sizer = this._rowSizers[index];\n return sizer ? sizer.stretch : -1;\n }\n /**\n * Set the stretch factor for a specific row.\n *\n * @param index - The row index of interest.\n *\n * @param value - The stretch factor for the row.\n *\n * #### Notes\n * This is a no-op if the index is out of range.\n */\n setRowStretch(index, value) {\n // Look up the row sizer.\n let sizer = this._rowSizers[index];\n // Bail if the index is out of range.\n if (!sizer) {\n return;\n }\n // Clamp the value to the allowed range.\n value = Private$4.clampValue(value);\n // Bail if the stretch does not change.\n if (sizer.stretch === value) {\n return;\n }\n // Update the sizer stretch.\n sizer.stretch = value;\n // Schedule an update of the parent.\n if (this.parent) {\n this.parent.update();\n }\n }\n /**\n * Get the stretch factor for a specific column.\n *\n * @param index - The column index of interest.\n *\n * @returns The stretch factor for the column.\n *\n * #### Notes\n * This returns `-1` if the index is out of range.\n */\n columnStretch(index) {\n let sizer = this._columnSizers[index];\n return sizer ? sizer.stretch : -1;\n }\n /**\n * Set the stretch factor for a specific column.\n *\n * @param index - The column index of interest.\n *\n * @param value - The stretch factor for the column.\n *\n * #### Notes\n * This is a no-op if the index is out of range.\n */\n setColumnStretch(index, value) {\n // Look up the column sizer.\n let sizer = this._columnSizers[index];\n // Bail if the index is out of range.\n if (!sizer) {\n return;\n }\n // Clamp the value to the allowed range.\n value = Private$4.clampValue(value);\n // Bail if the stretch does not change.\n if (sizer.stretch === value) {\n return;\n }\n // Update the sizer stretch.\n sizer.stretch = value;\n // Schedule an update of the parent.\n if (this.parent) {\n this.parent.update();\n }\n }\n /**\n * Create an iterator over the widgets in the layout.\n *\n * @returns A new iterator over the widgets in the layout.\n */\n *[Symbol.iterator]() {\n for (const item of this._items) {\n yield item.widget;\n }\n }\n /**\n * Add a widget to the grid layout.\n *\n * @param widget - The widget to add to the layout.\n *\n * #### Notes\n * If the widget is already contained in the layout, this is no-op.\n */\n addWidget(widget) {\n // Look up the index for the widget.\n let i = ArrayExt.findFirstIndex(this._items, it => it.widget === widget);\n // Bail if the widget is already in the layout.\n if (i !== -1) {\n return;\n }\n // Add the widget to the layout.\n this._items.push(new LayoutItem(widget));\n // Attach the widget to the parent.\n if (this.parent) {\n this.attachWidget(widget);\n }\n }\n /**\n * Remove a widget from the grid layout.\n *\n * @param widget - The widget to remove from the layout.\n *\n * #### Notes\n * A widget is automatically removed from the layout when its `parent`\n * is set to `null`. This method should only be invoked directly when\n * removing a widget from a layout which has yet to be installed on a\n * parent widget.\n *\n * This method does *not* modify the widget's `parent`.\n */\n removeWidget(widget) {\n // Look up the index for the widget.\n let i = ArrayExt.findFirstIndex(this._items, it => it.widget === widget);\n // Bail if the widget is not in the layout.\n if (i === -1) {\n return;\n }\n // Remove the widget from the layout.\n let item = ArrayExt.removeAt(this._items, i);\n // Detach the widget from the parent.\n if (this.parent) {\n this.detachWidget(widget);\n }\n // Dispose the layout item.\n item.dispose();\n }\n /**\n * Perform layout initialization which requires the parent widget.\n */\n init() {\n super.init();\n for (const widget of this) {\n this.attachWidget(widget);\n }\n }\n /**\n * Attach a widget to the parent's DOM node.\n *\n * @param widget - The widget to attach to the parent.\n */\n attachWidget(widget) {\n // Send a `'before-attach'` message if the parent is attached.\n if (this.parent.isAttached) {\n MessageLoop.sendMessage(widget, Widget.Msg.BeforeAttach);\n }\n // Add the widget's node to the parent.\n this.parent.node.appendChild(widget.node);\n // Send an `'after-attach'` message if the parent is attached.\n if (this.parent.isAttached) {\n MessageLoop.sendMessage(widget, Widget.Msg.AfterAttach);\n }\n // Post a fit request for the parent widget.\n this.parent.fit();\n }\n /**\n * Detach a widget from the parent's DOM node.\n *\n * @param widget - The widget to detach from the parent.\n */\n detachWidget(widget) {\n // Send a `'before-detach'` message if the parent is attached.\n if (this.parent.isAttached) {\n MessageLoop.sendMessage(widget, Widget.Msg.BeforeDetach);\n }\n // Remove the widget's node from the parent.\n this.parent.node.removeChild(widget.node);\n // Send an `'after-detach'` message if the parent is attached.\n if (this.parent.isAttached) {\n MessageLoop.sendMessage(widget, Widget.Msg.AfterDetach);\n }\n // Post a fit request for the parent widget.\n this.parent.fit();\n }\n /**\n * A message handler invoked on a `'before-show'` message.\n */\n onBeforeShow(msg) {\n super.onBeforeShow(msg);\n this.parent.update();\n }\n /**\n * A message handler invoked on a `'before-attach'` message.\n */\n onBeforeAttach(msg) {\n super.onBeforeAttach(msg);\n this.parent.fit();\n }\n /**\n * A message handler invoked on a `'child-shown'` message.\n */\n onChildShown(msg) {\n this.parent.fit();\n }\n /**\n * A message handler invoked on a `'child-hidden'` message.\n */\n onChildHidden(msg) {\n this.parent.fit();\n }\n /**\n * A message handler invoked on a `'resize'` message.\n */\n onResize(msg) {\n if (this.parent.isVisible) {\n this._update(msg.width, msg.height);\n }\n }\n /**\n * A message handler invoked on an `'update-request'` message.\n */\n onUpdateRequest(msg) {\n if (this.parent.isVisible) {\n this._update(-1, -1);\n }\n }\n /**\n * A message handler invoked on a `'fit-request'` message.\n */\n onFitRequest(msg) {\n if (this.parent.isAttached) {\n this._fit();\n }\n }\n /**\n * Fit the layout to the total size required by the widgets.\n */\n _fit() {\n // Reset the min sizes of the sizers.\n for (let i = 0, n = this.rowCount; i < n; ++i) {\n this._rowSizers[i].minSize = 0;\n }\n for (let i = 0, n = this.columnCount; i < n; ++i) {\n this._columnSizers[i].minSize = 0;\n }\n // Filter for the visible layout items.\n let items = this._items.filter(it => !it.isHidden);\n // Fit the layout items.\n for (let i = 0, n = items.length; i < n; ++i) {\n items[i].fit();\n }\n // Get the max row and column index.\n let maxRow = this.rowCount - 1;\n let maxCol = this.columnCount - 1;\n // Sort the items by row span.\n items.sort(Private$4.rowSpanCmp);\n // Update the min sizes of the row sizers.\n for (let i = 0, n = items.length; i < n; ++i) {\n // Fetch the item.\n let item = items[i];\n // Get the row bounds for the item.\n let config = GridLayout.getCellConfig(item.widget);\n let r1 = Math.min(config.row, maxRow);\n let r2 = Math.min(config.row + config.rowSpan - 1, maxRow);\n // Distribute the minimum height to the sizers as needed.\n Private$4.distributeMin(this._rowSizers, r1, r2, item.minHeight);\n }\n // Sort the items by column span.\n items.sort(Private$4.columnSpanCmp);\n // Update the min sizes of the column sizers.\n for (let i = 0, n = items.length; i < n; ++i) {\n // Fetch the item.\n let item = items[i];\n // Get the column bounds for the item.\n let config = GridLayout.getCellConfig(item.widget);\n let c1 = Math.min(config.column, maxCol);\n let c2 = Math.min(config.column + config.columnSpan - 1, maxCol);\n // Distribute the minimum width to the sizers as needed.\n Private$4.distributeMin(this._columnSizers, c1, c2, item.minWidth);\n }\n // If no size constraint is needed, just update the parent.\n if (this.fitPolicy === 'set-no-constraint') {\n MessageLoop.sendMessage(this.parent, Widget.Msg.UpdateRequest);\n return;\n }\n // Set up the computed min size.\n let minH = maxRow * this._rowSpacing;\n let minW = maxCol * this._columnSpacing;\n // Add the sizer minimums to the computed min size.\n for (let i = 0, n = this.rowCount; i < n; ++i) {\n minH += this._rowSizers[i].minSize;\n }\n for (let i = 0, n = this.columnCount; i < n; ++i) {\n minW += this._columnSizers[i].minSize;\n }\n // Update the box sizing and add it to the computed min size.\n let box = (this._box = ElementExt.boxSizing(this.parent.node));\n minW += box.horizontalSum;\n minH += box.verticalSum;\n // Update the parent's min size constraints.\n let style = this.parent.node.style;\n style.minWidth = `${minW}px`;\n style.minHeight = `${minH}px`;\n // Set the dirty flag to ensure only a single update occurs.\n this._dirty = true;\n // Notify the ancestor that it should fit immediately. This may\n // cause a resize of the parent, fulfilling the required update.\n if (this.parent.parent) {\n MessageLoop.sendMessage(this.parent.parent, Widget.Msg.FitRequest);\n }\n // If the dirty flag is still set, the parent was not resized.\n // Trigger the required update on the parent widget immediately.\n if (this._dirty) {\n MessageLoop.sendMessage(this.parent, Widget.Msg.UpdateRequest);\n }\n }\n /**\n * Update the layout position and size of the widgets.\n *\n * The parent offset dimensions should be `-1` if unknown.\n */\n _update(offsetWidth, offsetHeight) {\n // Clear the dirty flag to indicate the update occurred.\n this._dirty = false;\n // Measure the parent if the offset dimensions are unknown.\n if (offsetWidth < 0) {\n offsetWidth = this.parent.node.offsetWidth;\n }\n if (offsetHeight < 0) {\n offsetHeight = this.parent.node.offsetHeight;\n }\n // Ensure the parent box sizing data is computed.\n if (!this._box) {\n this._box = ElementExt.boxSizing(this.parent.node);\n }\n // Compute the layout area adjusted for border and padding.\n let top = this._box.paddingTop;\n let left = this._box.paddingLeft;\n let width = offsetWidth - this._box.horizontalSum;\n let height = offsetHeight - this._box.verticalSum;\n // Get the max row and column index.\n let maxRow = this.rowCount - 1;\n let maxCol = this.columnCount - 1;\n // Compute the total fixed row and column space.\n let fixedRowSpace = maxRow * this._rowSpacing;\n let fixedColSpace = maxCol * this._columnSpacing;\n // Distribute the available space to the box sizers.\n BoxEngine.calc(this._rowSizers, Math.max(0, height - fixedRowSpace));\n BoxEngine.calc(this._columnSizers, Math.max(0, width - fixedColSpace));\n // Update the row start positions.\n for (let i = 0, pos = top, n = this.rowCount; i < n; ++i) {\n this._rowStarts[i] = pos;\n pos += this._rowSizers[i].size + this._rowSpacing;\n }\n // Update the column start positions.\n for (let i = 0, pos = left, n = this.columnCount; i < n; ++i) {\n this._columnStarts[i] = pos;\n pos += this._columnSizers[i].size + this._columnSpacing;\n }\n // Update the geometry of the layout items.\n for (let i = 0, n = this._items.length; i < n; ++i) {\n // Fetch the item.\n let item = this._items[i];\n // Ignore hidden items.\n if (item.isHidden) {\n continue;\n }\n // Fetch the cell bounds for the widget.\n let config = GridLayout.getCellConfig(item.widget);\n let r1 = Math.min(config.row, maxRow);\n let c1 = Math.min(config.column, maxCol);\n let r2 = Math.min(config.row + config.rowSpan - 1, maxRow);\n let c2 = Math.min(config.column + config.columnSpan - 1, maxCol);\n // Compute the cell geometry.\n let x = this._columnStarts[c1];\n let y = this._rowStarts[r1];\n let w = this._columnStarts[c2] + this._columnSizers[c2].size - x;\n let h = this._rowStarts[r2] + this._rowSizers[r2].size - y;\n // Update the geometry of the layout item.\n item.update(x, y, w, h);\n }\n }\n}\n/**\n * The namespace for the `GridLayout` class statics.\n */\n(function (GridLayout) {\n /**\n * Get the cell config for the given widget.\n *\n * @param widget - The widget of interest.\n *\n * @returns The cell config for the widget.\n */\n function getCellConfig(widget) {\n return Private$4.cellConfigProperty.get(widget);\n }\n GridLayout.getCellConfig = getCellConfig;\n /**\n * Set the cell config for the given widget.\n *\n * @param widget - The widget of interest.\n *\n * @param value - The value for the cell config.\n */\n function setCellConfig(widget, value) {\n Private$4.cellConfigProperty.set(widget, Private$4.normalizeConfig(value));\n }\n GridLayout.setCellConfig = setCellConfig;\n})(GridLayout || (GridLayout = {}));\n/**\n * The namespace for the module implementation details.\n */\nvar Private$4;\n(function (Private) {\n /**\n * The property descriptor for the widget cell config.\n */\n Private.cellConfigProperty = new AttachedProperty({\n name: 'cellConfig',\n create: () => ({ row: 0, column: 0, rowSpan: 1, columnSpan: 1 }),\n changed: onChildCellConfigChanged\n });\n /**\n * Normalize a partial cell config object.\n */\n function normalizeConfig(config) {\n let row = Math.max(0, Math.floor(config.row || 0));\n let column = Math.max(0, Math.floor(config.column || 0));\n let rowSpan = Math.max(1, Math.floor(config.rowSpan || 0));\n let columnSpan = Math.max(1, Math.floor(config.columnSpan || 0));\n return { row, column, rowSpan, columnSpan };\n }\n Private.normalizeConfig = normalizeConfig;\n /**\n * Clamp a value to an integer >= 0.\n */\n function clampValue(value) {\n return Math.max(0, Math.floor(value));\n }\n Private.clampValue = clampValue;\n /**\n * A sort comparison function for row spans.\n */\n function rowSpanCmp(a, b) {\n let c1 = Private.cellConfigProperty.get(a.widget);\n let c2 = Private.cellConfigProperty.get(b.widget);\n return c1.rowSpan - c2.rowSpan;\n }\n Private.rowSpanCmp = rowSpanCmp;\n /**\n * A sort comparison function for column spans.\n */\n function columnSpanCmp(a, b) {\n let c1 = Private.cellConfigProperty.get(a.widget);\n let c2 = Private.cellConfigProperty.get(b.widget);\n return c1.columnSpan - c2.columnSpan;\n }\n Private.columnSpanCmp = columnSpanCmp;\n /**\n * Reallocate the box sizers for the given grid dimensions.\n */\n function reallocSizers(sizers, count) {\n // Coerce the count to the valid range.\n count = Math.max(1, Math.floor(count));\n // Add the missing sizers.\n while (sizers.length < count) {\n sizers.push(new BoxSizer());\n }\n // Remove the extra sizers.\n if (sizers.length > count) {\n sizers.length = count;\n }\n }\n Private.reallocSizers = reallocSizers;\n /**\n * Distribute a min size constraint across a range of sizers.\n */\n function distributeMin(sizers, i1, i2, minSize) {\n // Sanity check the indices.\n if (i2 < i1) {\n return;\n }\n // Handle the simple case of no cell span.\n if (i1 === i2) {\n let sizer = sizers[i1];\n sizer.minSize = Math.max(sizer.minSize, minSize);\n return;\n }\n // Compute the total current min size of the span.\n let totalMin = 0;\n for (let i = i1; i <= i2; ++i) {\n totalMin += sizers[i].minSize;\n }\n // Do nothing if the total is greater than the required.\n if (totalMin >= minSize) {\n return;\n }\n // Compute the portion of the space to allocate to each sizer.\n let portion = (minSize - totalMin) / (i2 - i1 + 1);\n // Add the portion to each sizer.\n for (let i = i1; i <= i2; ++i) {\n sizers[i].minSize += portion;\n }\n }\n Private.distributeMin = distributeMin;\n /**\n * The change handler for the child cell config property.\n */\n function onChildCellConfigChanged(child) {\n if (child.parent && child.parent.layout instanceof GridLayout) {\n child.parent.fit();\n }\n }\n})(Private$4 || (Private$4 = {}));\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * A widget which displays menus as a canonical menu bar.\n */\nclass MenuBar extends Widget {\n /**\n * Construct a new menu bar.\n *\n * @param options - The options for initializing the menu bar.\n */\n constructor(options = {}) {\n super({ node: Private$3.createNode() });\n // Track the index of the item that is currently focused or hovered. -1 means nothing focused or hovered.\n this._activeIndex = -1;\n // Track which item can be focused using the TAB key. Unlike _activeIndex will\n // always point to a menuitem. Whenever you update this value, it's important\n // to follow it with an \"update-request\" message so that the `tabindex`\n // attribute on each menubar item gets properly updated.\n this._tabFocusIndex = 0;\n this._menus = [];\n this._childMenu = null;\n this._overflowMenu = null;\n this._menuItemSizes = [];\n this._overflowIndex = -1;\n this.addClass('lm-MenuBar');\n this.setFlag(Widget.Flag.DisallowLayout);\n this.renderer = options.renderer || MenuBar.defaultRenderer;\n this._forceItemsPosition = options.forceItemsPosition || {\n forceX: true,\n forceY: true\n };\n this._overflowMenuOptions = options.overflowMenuOptions || {\n isVisible: true\n };\n }\n /**\n * Dispose of the resources held by the widget.\n */\n dispose() {\n this._closeChildMenu();\n this._menus.length = 0;\n super.dispose();\n }\n /**\n * The child menu of the menu bar.\n *\n * #### Notes\n * This will be `null` if the menu bar does not have an open menu.\n */\n get childMenu() {\n return this._childMenu;\n }\n /**\n * The overflow index of the menu bar.\n */\n get overflowIndex() {\n return this._overflowIndex;\n }\n /**\n * The overflow menu of the menu bar.\n */\n get overflowMenu() {\n return this._overflowMenu;\n }\n /**\n * Get the menu bar content node.\n *\n * #### Notes\n * This is the node which holds the menu title nodes.\n *\n * Modifying this node directly can lead to undefined behavior.\n */\n get contentNode() {\n return this.node.getElementsByClassName('lm-MenuBar-content')[0];\n }\n /**\n * Get the currently active menu.\n */\n get activeMenu() {\n return this._menus[this._activeIndex] || null;\n }\n /**\n * Set the currently active menu.\n *\n * #### Notes\n * If the menu does not exist, the menu will be set to `null`.\n */\n set activeMenu(value) {\n this.activeIndex = value ? this._menus.indexOf(value) : -1;\n }\n /**\n * Get the index of the currently active menu.\n *\n * #### Notes\n * This will be `-1` if no menu is active.\n */\n get activeIndex() {\n return this._activeIndex;\n }\n /**\n * Set the index of the currently active menu.\n *\n * #### Notes\n * If the menu cannot be activated, the index will be set to `-1`.\n */\n set activeIndex(value) {\n // Adjust the value for an out of range index.\n if (value < 0 || value >= this._menus.length) {\n value = -1;\n }\n // An empty menu cannot be active\n if (value > -1 && this._menus[value].items.length === 0) {\n value = -1;\n }\n // Bail early if the index will not change.\n if (this._activeIndex === value) {\n return;\n }\n // Update the active index.\n this._activeIndex = value;\n // Schedule an update of the items.\n this.update();\n }\n /**\n * A read-only array of the menus in the menu bar.\n */\n get menus() {\n return this._menus;\n }\n /**\n * Open the active menu and activate its first menu item.\n *\n * #### Notes\n * If there is no active menu, this is a no-op.\n */\n openActiveMenu() {\n // Bail early if there is no active item.\n if (this._activeIndex === -1) {\n return;\n }\n // Open the child menu.\n this._openChildMenu();\n // Activate the first item in the child menu.\n if (this._childMenu) {\n this._childMenu.activeIndex = -1;\n this._childMenu.activateNextItem();\n }\n }\n /**\n * Add a menu to the end of the menu bar.\n *\n * @param menu - The menu to add to the menu bar.\n *\n * #### Notes\n * If the menu is already added to the menu bar, it will be moved.\n */\n addMenu(menu, update = true) {\n this.insertMenu(this._menus.length, menu, update);\n }\n /**\n * Insert a menu into the menu bar at the specified index.\n *\n * @param index - The index at which to insert the menu.\n *\n * @param menu - The menu to insert into the menu bar.\n *\n * #### Notes\n * The index will be clamped to the bounds of the menus.\n *\n * If the menu is already added to the menu bar, it will be moved.\n */\n insertMenu(index, menu, update = true) {\n // Close the child menu before making changes.\n this._closeChildMenu();\n // Look up the index of the menu.\n let i = this._menus.indexOf(menu);\n // Clamp the insert index to the array bounds.\n let j = Math.max(0, Math.min(index, this._menus.length));\n // If the menu is not in the array, insert it.\n if (i === -1) {\n // Insert the menu into the array.\n ArrayExt.insert(this._menus, j, menu);\n // Add the styling class to the menu.\n menu.addClass('lm-MenuBar-menu');\n // Connect to the menu signals.\n menu.aboutToClose.connect(this._onMenuAboutToClose, this);\n menu.menuRequested.connect(this._onMenuMenuRequested, this);\n menu.title.changed.connect(this._onTitleChanged, this);\n // Schedule an update of the items.\n if (update) {\n this.update();\n }\n // There is nothing more to do.\n return;\n }\n // Otherwise, the menu exists in the array and should be moved.\n // Adjust the index if the location is at the end of the array.\n if (j === this._menus.length) {\n j--;\n }\n // Bail if there is no effective move.\n if (i === j) {\n return;\n }\n // Move the menu to the new locations.\n ArrayExt.move(this._menus, i, j);\n // Schedule an update of the items.\n if (update) {\n this.update();\n }\n }\n /**\n * Remove a menu from the menu bar.\n *\n * @param menu - The menu to remove from the menu bar.\n *\n * #### Notes\n * This is a no-op if the menu is not in the menu bar.\n */\n removeMenu(menu, update = true) {\n this.removeMenuAt(this._menus.indexOf(menu), update);\n }\n /**\n * Remove the menu at a given index from the menu bar.\n *\n * @param index - The index of the menu to remove.\n *\n * #### Notes\n * This is a no-op if the index is out of range.\n */\n removeMenuAt(index, update = true) {\n // Close the child menu before making changes.\n this._closeChildMenu();\n // Remove the menu from the array.\n let menu = ArrayExt.removeAt(this._menus, index);\n // Bail if the index is out of range.\n if (!menu) {\n return;\n }\n // Disconnect from the menu signals.\n menu.aboutToClose.disconnect(this._onMenuAboutToClose, this);\n menu.menuRequested.disconnect(this._onMenuMenuRequested, this);\n menu.title.changed.disconnect(this._onTitleChanged, this);\n // Remove the styling class from the menu.\n menu.removeClass('lm-MenuBar-menu');\n // Schedule an update of the items.\n if (update) {\n this.update();\n }\n }\n /**\n * Remove all menus from the menu bar.\n */\n clearMenus() {\n // Bail if there is nothing to remove.\n if (this._menus.length === 0) {\n return;\n }\n // Close the child menu before making changes.\n this._closeChildMenu();\n // Disconnect from the menu signals and remove the styling class.\n for (let menu of this._menus) {\n menu.aboutToClose.disconnect(this._onMenuAboutToClose, this);\n menu.menuRequested.disconnect(this._onMenuMenuRequested, this);\n menu.title.changed.disconnect(this._onTitleChanged, this);\n menu.removeClass('lm-MenuBar-menu');\n }\n // Clear the menus array.\n this._menus.length = 0;\n // Schedule an update of the items.\n this.update();\n }\n /**\n * Handle the DOM events for the menu bar.\n *\n * @param event - The DOM event sent to the menu bar.\n *\n * #### Notes\n * This method implements the DOM `EventListener` interface and is\n * called in response to events on the menu bar's DOM nodes. It\n * should not be called directly by user code.\n */\n handleEvent(event) {\n switch (event.type) {\n case 'keydown':\n this._evtKeyDown(event);\n break;\n case 'mousedown':\n this._evtMouseDown(event);\n break;\n case 'mousemove':\n this._evtMouseMove(event);\n break;\n case 'focusout':\n this._evtFocusOut(event);\n break;\n case 'contextmenu':\n event.preventDefault();\n event.stopPropagation();\n break;\n }\n }\n /**\n * A message handler invoked on a `'before-attach'` message.\n */\n onBeforeAttach(msg) {\n this.node.addEventListener('keydown', this);\n this.node.addEventListener('mousedown', this);\n this.node.addEventListener('mousemove', this);\n this.node.addEventListener('focusout', this);\n this.node.addEventListener('contextmenu', this);\n }\n /**\n * A message handler invoked on an `'after-detach'` message.\n */\n onAfterDetach(msg) {\n this.node.removeEventListener('keydown', this);\n this.node.removeEventListener('mousedown', this);\n this.node.removeEventListener('mousemove', this);\n this.node.removeEventListener('focusout', this);\n this.node.removeEventListener('contextmenu', this);\n this._closeChildMenu();\n }\n /**\n * A message handler invoked on an `'activate-request'` message.\n */\n onActivateRequest(msg) {\n if (this.isAttached) {\n this._focusItemAt(0);\n }\n }\n /**\n * A message handler invoked on a `'resize'` message.\n */\n onResize(msg) {\n this.update();\n super.onResize(msg);\n }\n /**\n * A message handler invoked on an `'update-request'` message.\n */\n onUpdateRequest(msg) {\n var _a;\n let menus = this._menus;\n let renderer = this.renderer;\n let activeIndex = this._activeIndex;\n let tabFocusIndex = this._tabFocusIndex >= 0 && this._tabFocusIndex < menus.length\n ? this._tabFocusIndex\n : 0;\n let length = this._overflowIndex > -1 ? this._overflowIndex : menus.length;\n let totalMenuSize = 0;\n let isVisible = false;\n // Check that the overflow menu doesn't count\n length = this._overflowMenu !== null ? length - 1 : length;\n let content = new Array(length);\n // Render visible menus\n for (let i = 0; i < length; ++i) {\n content[i] = renderer.renderItem({\n title: menus[i].title,\n active: i === activeIndex,\n tabbable: i === tabFocusIndex,\n disabled: menus[i].items.length === 0,\n onfocus: () => {\n this._tabFocusIndex = i;\n this.activeIndex = i;\n }\n });\n // Calculate size of current menu\n totalMenuSize += this._menuItemSizes[i];\n // Check if overflow menu is already rendered\n if (menus[i].title.label === this._overflowMenuOptions.title) {\n isVisible = true;\n length--;\n }\n }\n // Render overflow menu if needed and active\n if (this._overflowMenuOptions.isVisible) {\n if (this._overflowIndex > -1 && !isVisible) {\n // Create overflow menu\n if (this._overflowMenu === null) {\n const overflowMenuTitle = (_a = this._overflowMenuOptions.title) !== null && _a !== void 0 ? _a : '...';\n this._overflowMenu = new Menu({ commands: new CommandRegistry() });\n this._overflowMenu.title.label = overflowMenuTitle;\n this._overflowMenu.title.mnemonic = 0;\n this.addMenu(this._overflowMenu, false);\n }\n // Move menus to overflow menu\n for (let i = menus.length - 2; i >= length; i--) {\n const submenu = this.menus[i];\n submenu.title.mnemonic = 0;\n this._overflowMenu.insertItem(0, {\n type: 'submenu',\n submenu: submenu\n });\n this.removeMenu(submenu, false);\n }\n content[length] = renderer.renderItem({\n title: this._overflowMenu.title,\n active: length === activeIndex && menus[length].items.length !== 0,\n tabbable: length === tabFocusIndex,\n disabled: menus[length].items.length === 0,\n onfocus: () => {\n this._tabFocusIndex = length;\n this.activeIndex = length;\n }\n });\n length++;\n }\n else if (this._overflowMenu !== null) {\n // Remove submenus from overflow menu\n let overflowMenuItems = this._overflowMenu.items;\n let screenSize = this.node.offsetWidth;\n let n = this._overflowMenu.items.length;\n for (let i = 0; i < n; ++i) {\n let index = menus.length - 1 - i;\n if (screenSize - totalMenuSize > this._menuItemSizes[index]) {\n let menu = overflowMenuItems[0].submenu;\n this._overflowMenu.removeItemAt(0);\n this.insertMenu(length, menu, false);\n content[length] = renderer.renderItem({\n title: menu.title,\n active: false,\n tabbable: length === tabFocusIndex,\n disabled: menus[length].items.length === 0,\n onfocus: () => {\n this._tabFocusIndex = length;\n this.activeIndex = length;\n }\n });\n length++;\n }\n }\n if (this._overflowMenu.items.length === 0) {\n this.removeMenu(this._overflowMenu, false);\n content.pop();\n this._overflowMenu = null;\n this._overflowIndex = -1;\n }\n }\n }\n VirtualDOM.render(content, this.contentNode);\n this._updateOverflowIndex();\n }\n /**\n * Calculate and update the current overflow index.\n */\n _updateOverflowIndex() {\n if (!this._overflowMenuOptions.isVisible) {\n return;\n }\n // Get elements visible in the main menu bar\n const itemMenus = this.contentNode.childNodes;\n let screenSize = this.node.offsetWidth;\n let totalMenuSize = 0;\n let index = -1;\n let n = itemMenus.length;\n if (this._menuItemSizes.length == 0) {\n // Check if it is the first resize and get info about menu items sizes\n for (let i = 0; i < n; i++) {\n let item = itemMenus[i];\n // Add sizes to array\n totalMenuSize += item.offsetWidth;\n this._menuItemSizes.push(item.offsetWidth);\n if (totalMenuSize > screenSize && index === -1) {\n index = i;\n }\n }\n }\n else {\n // Calculate current menu size\n for (let i = 0; i < this._menuItemSizes.length; i++) {\n totalMenuSize += this._menuItemSizes[i];\n if (totalMenuSize > screenSize) {\n index = i;\n break;\n }\n }\n }\n this._overflowIndex = index;\n }\n /**\n * Handle the `'keydown'` event for the menu bar.\n *\n * #### Notes\n * All keys are trapped except the tab key that is ignored.\n */\n _evtKeyDown(event) {\n // Fetch the key code for the event.\n let kc = event.keyCode;\n // Reset the active index on tab, but do not trap the tab key.\n if (kc === 9) {\n this.activeIndex = -1;\n return;\n }\n // A menu bar handles all other keydown events.\n event.preventDefault();\n event.stopPropagation();\n // Enter, Space, Up Arrow, Down Arrow\n if (kc === 13 || kc === 32 || kc === 38 || kc === 40) {\n // The active index may have changed (for example, user hovers over an\n // item with the mouse), so be sure to use the focus index.\n this.activeIndex = this._tabFocusIndex;\n if (this.activeIndex !== this._tabFocusIndex) {\n // Bail if the setter refused to set activeIndex to tabFocusIndex\n // because it means that the item at tabFocusIndex cannot be opened (for\n // example, it has an empty menu)\n return;\n }\n this.openActiveMenu();\n return;\n }\n // Escape\n if (kc === 27) {\n this._closeChildMenu();\n this._focusItemAt(this.activeIndex);\n return;\n }\n // Left or Right Arrow\n if (kc === 37 || kc === 39) {\n let direction = kc === 37 ? -1 : 1;\n let start = this._tabFocusIndex + direction;\n let n = this._menus.length;\n for (let i = 0; i < n; i++) {\n let index = (n + start + direction * i) % n;\n if (this._menus[index].items.length) {\n this._focusItemAt(index);\n return;\n }\n }\n return;\n }\n // Get the pressed key character.\n let key = getKeyboardLayout().keyForKeydownEvent(event);\n // Bail if the key is not valid.\n if (!key) {\n return;\n }\n // Search for the next best matching mnemonic item.\n let start = this._activeIndex + 1;\n let result = Private$3.findMnemonic(this._menus, key, start);\n // Handle the requested mnemonic based on the search results.\n // If exactly one mnemonic is matched, that menu is opened.\n // Otherwise, the next mnemonic is activated if available,\n // followed by the auto mnemonic if available.\n if (result.index !== -1 && !result.multiple) {\n this.activeIndex = result.index;\n this.openActiveMenu();\n }\n else if (result.index !== -1) {\n this.activeIndex = result.index;\n this._focusItemAt(this.activeIndex);\n }\n else if (result.auto !== -1) {\n this.activeIndex = result.auto;\n this._focusItemAt(this.activeIndex);\n }\n }\n /**\n * Handle the `'mousedown'` event for the menu bar.\n */\n _evtMouseDown(event) {\n // Bail if the mouse press was not on the menu bar. This can occur\n // when the document listener is installed for an active menu bar.\n if (!ElementExt.hitTest(this.node, event.clientX, event.clientY)) {\n return;\n }\n // Stop the propagation of the event. Immediate propagation is\n // also stopped so that an open menu does not handle the event.\n event.stopPropagation();\n event.stopImmediatePropagation();\n // Check if the mouse is over one of the menu items.\n let index = ArrayExt.findFirstIndex(this.contentNode.children, node => {\n return ElementExt.hitTest(node, event.clientX, event.clientY);\n });\n // If the press was not on an item, close the child menu.\n if (index === -1) {\n this._closeChildMenu();\n return;\n }\n // If the press was not the left mouse button, do nothing further.\n if (event.button !== 0) {\n return;\n }\n // Otherwise, toggle the open state of the child menu.\n if (this._childMenu) {\n this._closeChildMenu();\n this.activeIndex = index;\n }\n else {\n // If we don't call preventDefault() here, then the item in the menu\n // bar will take focus over the menu that is being opened.\n event.preventDefault();\n const position = this._positionForMenu(index);\n Menu.saveWindowData();\n // Begin DOM modifications.\n this.activeIndex = index;\n this._openChildMenu(position);\n }\n }\n /**\n * Handle the `'mousemove'` event for the menu bar.\n */\n _evtMouseMove(event) {\n // Check if the mouse is over one of the menu items.\n let index = ArrayExt.findFirstIndex(this.contentNode.children, node => {\n return ElementExt.hitTest(node, event.clientX, event.clientY);\n });\n // Bail early if the active index will not change.\n if (index === this._activeIndex) {\n return;\n }\n // Bail early if a child menu is open and the mouse is not over\n // an item. This allows the child menu to be kept open when the\n // mouse is over the empty part of the menu bar.\n if (index === -1 && this._childMenu) {\n return;\n }\n // Get position for the new menu >before< updating active index.\n const position = index >= 0 && this._childMenu ? this._positionForMenu(index) : null;\n // Before any modification, update window data.\n Menu.saveWindowData();\n // Begin DOM modifications.\n // Update the active index to the hovered item.\n this.activeIndex = index;\n // Open the new menu if a menu is already open.\n if (position) {\n this._openChildMenu(position);\n }\n }\n /**\n * Find initial position for the menu based on menubar item position.\n *\n * NOTE: this should be called before updating active index to avoid\n * an additional layout and style invalidation as changing active\n * index modifies DOM.\n */\n _positionForMenu(index) {\n let itemNode = this.contentNode.children[index];\n let { left, bottom } = itemNode.getBoundingClientRect();\n return {\n top: bottom,\n left\n };\n }\n /**\n * Handle the `'focusout'` event for the menu bar.\n */\n _evtFocusOut(event) {\n // Reset the active index if there is no open menu and the menubar is losing focus.\n if (!this._childMenu && !this.node.contains(event.relatedTarget)) {\n this.activeIndex = -1;\n }\n }\n /**\n * Focus an item in the menu bar.\n *\n * #### Notes\n * Does not open the associated menu.\n */\n _focusItemAt(index) {\n const itemNode = this.contentNode.childNodes[index];\n if (itemNode) {\n itemNode.focus();\n }\n }\n /**\n * Open the child menu at the active index immediately.\n *\n * If a different child menu is already open, it will be closed,\n * even if there is no active menu.\n */\n _openChildMenu(options = {}) {\n // If there is no active menu, close the current menu.\n let newMenu = this.activeMenu;\n if (!newMenu) {\n this._closeChildMenu();\n return;\n }\n // Bail if there is no effective menu change.\n let oldMenu = this._childMenu;\n if (oldMenu === newMenu) {\n return;\n }\n // Swap the internal menu reference.\n this._childMenu = newMenu;\n // Close the current menu, or setup for the new menu.\n if (oldMenu) {\n oldMenu.close();\n }\n else {\n document.addEventListener('mousedown', this, true);\n }\n // Update the tab focus index and ensure the menu bar is updated.\n this._tabFocusIndex = this.activeIndex;\n MessageLoop.sendMessage(this, Widget.Msg.UpdateRequest);\n // Get the positioning data for the new menu.\n let { left, top } = options;\n if (typeof left === 'undefined' || typeof top === 'undefined') {\n ({ left, top } = this._positionForMenu(this._activeIndex));\n }\n // Begin DOM modifications\n if (!oldMenu) {\n // Continue setup for new menu\n this.addClass('lm-mod-active');\n }\n // Open the new menu at the computed location.\n if (newMenu.items.length > 0) {\n newMenu.open(left, top, this._forceItemsPosition);\n }\n }\n /**\n * Close the child menu immediately.\n *\n * This is a no-op if a child menu is not open.\n */\n _closeChildMenu() {\n // Bail if no child menu is open.\n if (!this._childMenu) {\n return;\n }\n // Remove the active class from the menu bar.\n this.removeClass('lm-mod-active');\n // Remove the document listeners.\n document.removeEventListener('mousedown', this, true);\n // Clear the internal menu reference.\n let menu = this._childMenu;\n this._childMenu = null;\n // Close the menu.\n menu.close();\n // Reset the active index.\n this.activeIndex = -1;\n }\n /**\n * Handle the `aboutToClose` signal of a menu.\n */\n _onMenuAboutToClose(sender) {\n // Bail if the sender is not the child menu.\n if (sender !== this._childMenu) {\n return;\n }\n // Remove the active class from the menu bar.\n this.removeClass('lm-mod-active');\n // Remove the document listeners.\n document.removeEventListener('mousedown', this, true);\n // Clear the internal menu reference.\n this._childMenu = null;\n // Reset the active index.\n this.activeIndex = -1;\n }\n /**\n * Handle the `menuRequested` signal of a child menu.\n */\n _onMenuMenuRequested(sender, args) {\n // Bail if the sender is not the child menu.\n if (sender !== this._childMenu) {\n return;\n }\n // Look up the active index and menu count.\n let i = this._activeIndex;\n let n = this._menus.length;\n // Active the next requested index.\n switch (args) {\n case 'next':\n this.activeIndex = i === n - 1 ? 0 : i + 1;\n break;\n case 'previous':\n this.activeIndex = i === 0 ? n - 1 : i - 1;\n break;\n }\n // Open the active menu.\n this.openActiveMenu();\n }\n /**\n * Handle the `changed` signal of a title object.\n */\n _onTitleChanged() {\n this.update();\n }\n}\n/**\n * The namespace for the `MenuBar` class statics.\n */\n(function (MenuBar) {\n /**\n * The default implementation of `IRenderer`.\n *\n * #### Notes\n * Subclasses are free to reimplement rendering methods as needed.\n */\n class Renderer {\n /**\n * Render the virtual element for a menu bar item.\n *\n * @param data - The data to use for rendering the item.\n *\n * @returns A virtual element representing the item.\n */\n renderItem(data) {\n let className = this.createItemClass(data);\n let dataset = this.createItemDataset(data);\n let aria = this.createItemARIA(data);\n return h.li({\n className,\n dataset,\n ...(data.disabled ? {} : { tabindex: data.tabbable ? '0' : '-1' }),\n onfocus: data.onfocus,\n ...aria\n }, this.renderIcon(data), this.renderLabel(data));\n }\n /**\n * Render the icon element for a menu bar item.\n *\n * @param data - The data to use for rendering the icon.\n *\n * @returns A virtual element representing the item icon.\n */\n renderIcon(data) {\n let className = this.createIconClass(data);\n // If data.title.icon is undefined, it will be ignored.\n return h.div({ className }, data.title.icon, data.title.iconLabel);\n }\n /**\n * Render the label element for a menu item.\n *\n * @param data - The data to use for rendering the label.\n *\n * @returns A virtual element representing the item label.\n */\n renderLabel(data) {\n let content = this.formatLabel(data);\n return h.div({ className: 'lm-MenuBar-itemLabel' }, content);\n }\n /**\n * Create the class name for the menu bar item.\n *\n * @param data - The data to use for the class name.\n *\n * @returns The full class name for the menu item.\n */\n createItemClass(data) {\n let name = 'lm-MenuBar-item';\n if (data.title.className) {\n name += ` ${data.title.className}`;\n }\n if (data.active && !data.disabled) {\n name += ' lm-mod-active';\n }\n return name;\n }\n /**\n * Create the dataset for a menu bar item.\n *\n * @param data - The data to use for the item.\n *\n * @returns The dataset for the menu bar item.\n */\n createItemDataset(data) {\n return data.title.dataset;\n }\n /**\n * Create the aria attributes for menu bar item.\n *\n * @param data - The data to use for the aria attributes.\n *\n * @returns The aria attributes object for the item.\n */\n createItemARIA(data) {\n return {\n role: 'menuitem',\n 'aria-haspopup': 'true',\n 'aria-disabled': data.disabled ? 'true' : 'false'\n };\n }\n /**\n * Create the class name for the menu bar item icon.\n *\n * @param data - The data to use for the class name.\n *\n * @returns The full class name for the item icon.\n */\n createIconClass(data) {\n let name = 'lm-MenuBar-itemIcon';\n let extra = data.title.iconClass;\n return extra ? `${name} ${extra}` : name;\n }\n /**\n * Create the render content for the label node.\n *\n * @param data - The data to use for the label content.\n *\n * @returns The content to add to the label node.\n */\n formatLabel(data) {\n // Fetch the label text and mnemonic index.\n let { label, mnemonic } = data.title;\n // If the index is out of range, do not modify the label.\n if (mnemonic < 0 || mnemonic >= label.length) {\n return label;\n }\n // Split the label into parts.\n let prefix = label.slice(0, mnemonic);\n let suffix = label.slice(mnemonic + 1);\n let char = label[mnemonic];\n // Wrap the mnemonic character in a span.\n let span = h.span({ className: 'lm-MenuBar-itemMnemonic' }, char);\n // Return the content parts.\n return [prefix, span, suffix];\n }\n }\n MenuBar.Renderer = Renderer;\n /**\n * The default `Renderer` instance.\n */\n MenuBar.defaultRenderer = new Renderer();\n})(MenuBar || (MenuBar = {}));\n/**\n * The namespace for the module implementation details.\n */\nvar Private$3;\n(function (Private) {\n /**\n * Create the DOM node for a menu bar.\n */\n function createNode() {\n let node = document.createElement('div');\n let content = document.createElement('ul');\n content.className = 'lm-MenuBar-content';\n node.appendChild(content);\n content.setAttribute('role', 'menubar');\n return node;\n }\n Private.createNode = createNode;\n /**\n * Find the best matching mnemonic item.\n *\n * The search starts at the given index and wraps around.\n */\n function findMnemonic(menus, key, start) {\n // Setup the result variables.\n let index = -1;\n let auto = -1;\n let multiple = false;\n // Normalize the key to upper case.\n let upperKey = key.toUpperCase();\n // Search the items from the given start index.\n for (let i = 0, n = menus.length; i < n; ++i) {\n // Compute the wrapped index.\n let k = (i + start) % n;\n // Look up the menu title.\n let title = menus[k].title;\n // Ignore titles with an empty label.\n if (title.label.length === 0) {\n continue;\n }\n // Look up the mnemonic index for the label.\n let mn = title.mnemonic;\n // Handle a valid mnemonic index.\n if (mn >= 0 && mn < title.label.length) {\n if (title.label[mn].toUpperCase() === upperKey) {\n if (index === -1) {\n index = k;\n }\n else {\n multiple = true;\n }\n }\n continue;\n }\n // Finally, handle the auto index if possible.\n if (auto === -1 && title.label[0].toUpperCase() === upperKey) {\n auto = k;\n }\n }\n // Return the search results.\n return { index, multiple, auto };\n }\n Private.findMnemonic = findMnemonic;\n})(Private$3 || (Private$3 = {}));\n\n/**\n * A widget which implements a canonical scroll bar.\n */\nclass ScrollBar extends Widget {\n /**\n * Construct a new scroll bar.\n *\n * @param options - The options for initializing the scroll bar.\n */\n constructor(options = {}) {\n super({ node: Private$2.createNode() });\n /**\n * A timeout callback for repeating the mouse press.\n */\n this._onRepeat = () => {\n // Clear the repeat timer id.\n this._repeatTimer = -1;\n // Bail if the mouse has been released.\n if (!this._pressData) {\n return;\n }\n // Look up the part that was pressed.\n let part = this._pressData.part;\n // Bail if the thumb was pressed.\n if (part === 'thumb') {\n return;\n }\n // Schedule the timer for another repeat.\n this._repeatTimer = window.setTimeout(this._onRepeat, 20);\n // Get the current mouse position.\n let mouseX = this._pressData.mouseX;\n let mouseY = this._pressData.mouseY;\n // Handle a decrement button repeat.\n if (part === 'decrement') {\n // Bail if the mouse is not over the button.\n if (!ElementExt.hitTest(this.decrementNode, mouseX, mouseY)) {\n return;\n }\n // Emit the step requested signal.\n this._stepRequested.emit('decrement');\n // Finished.\n return;\n }\n // Handle an increment button repeat.\n if (part === 'increment') {\n // Bail if the mouse is not over the button.\n if (!ElementExt.hitTest(this.incrementNode, mouseX, mouseY)) {\n return;\n }\n // Emit the step requested signal.\n this._stepRequested.emit('increment');\n // Finished.\n return;\n }\n // Handle a track repeat.\n if (part === 'track') {\n // Bail if the mouse is not over the track.\n if (!ElementExt.hitTest(this.trackNode, mouseX, mouseY)) {\n return;\n }\n // Fetch the thumb node.\n let thumbNode = this.thumbNode;\n // Bail if the mouse is over the thumb.\n if (ElementExt.hitTest(thumbNode, mouseX, mouseY)) {\n return;\n }\n // Fetch the client rect for the thumb.\n let thumbRect = thumbNode.getBoundingClientRect();\n // Determine the direction for the page request.\n let dir;\n if (this._orientation === 'horizontal') {\n dir = mouseX < thumbRect.left ? 'decrement' : 'increment';\n }\n else {\n dir = mouseY < thumbRect.top ? 'decrement' : 'increment';\n }\n // Emit the page requested signal.\n this._pageRequested.emit(dir);\n // Finished.\n return;\n }\n };\n this._value = 0;\n this._page = 10;\n this._maximum = 100;\n this._repeatTimer = -1;\n this._pressData = null;\n this._thumbMoved = new Signal(this);\n this._stepRequested = new Signal(this);\n this._pageRequested = new Signal(this);\n this.addClass('lm-ScrollBar');\n this.setFlag(Widget.Flag.DisallowLayout);\n // Set the orientation.\n this._orientation = options.orientation || 'vertical';\n this.dataset['orientation'] = this._orientation;\n // Parse the rest of the options.\n if (options.maximum !== undefined) {\n this._maximum = Math.max(0, options.maximum);\n }\n if (options.page !== undefined) {\n this._page = Math.max(0, options.page);\n }\n if (options.value !== undefined) {\n this._value = Math.max(0, Math.min(options.value, this._maximum));\n }\n }\n /**\n * A signal emitted when the user moves the scroll thumb.\n *\n * #### Notes\n * The payload is the current value of the scroll bar.\n */\n get thumbMoved() {\n return this._thumbMoved;\n }\n /**\n * A signal emitted when the user clicks a step button.\n *\n * #### Notes\n * The payload is whether a decrease or increase is requested.\n */\n get stepRequested() {\n return this._stepRequested;\n }\n /**\n * A signal emitted when the user clicks the scroll track.\n *\n * #### Notes\n * The payload is whether a decrease or increase is requested.\n */\n get pageRequested() {\n return this._pageRequested;\n }\n /**\n * Get the orientation of the scroll bar.\n */\n get orientation() {\n return this._orientation;\n }\n /**\n * Set the orientation of the scroll bar.\n */\n set orientation(value) {\n // Do nothing if the orientation does not change.\n if (this._orientation === value) {\n return;\n }\n // Release the mouse before making changes.\n this._releaseMouse();\n // Update the internal orientation.\n this._orientation = value;\n this.dataset['orientation'] = value;\n // Schedule an update the scroll bar.\n this.update();\n }\n /**\n * Get the current value of the scroll bar.\n */\n get value() {\n return this._value;\n }\n /**\n * Set the current value of the scroll bar.\n *\n * #### Notes\n * The value will be clamped to the range `[0, maximum]`.\n */\n set value(value) {\n // Clamp the value to the allowable range.\n value = Math.max(0, Math.min(value, this._maximum));\n // Do nothing if the value does not change.\n if (this._value === value) {\n return;\n }\n // Update the internal value.\n this._value = value;\n // Schedule an update the scroll bar.\n this.update();\n }\n /**\n * Get the page size of the scroll bar.\n *\n * #### Notes\n * The page size is the amount of visible content in the scrolled\n * region, expressed in data units. It determines the size of the\n * scroll bar thumb.\n */\n get page() {\n return this._page;\n }\n /**\n * Set the page size of the scroll bar.\n *\n * #### Notes\n * The page size will be clamped to the range `[0, Infinity]`.\n */\n set page(value) {\n // Clamp the page size to the allowable range.\n value = Math.max(0, value);\n // Do nothing if the value does not change.\n if (this._page === value) {\n return;\n }\n // Update the internal page size.\n this._page = value;\n // Schedule an update the scroll bar.\n this.update();\n }\n /**\n * Get the maximum value of the scroll bar.\n */\n get maximum() {\n return this._maximum;\n }\n /**\n * Set the maximum value of the scroll bar.\n *\n * #### Notes\n * The max size will be clamped to the range `[0, Infinity]`.\n */\n set maximum(value) {\n // Clamp the value to the allowable range.\n value = Math.max(0, value);\n // Do nothing if the value does not change.\n if (this._maximum === value) {\n return;\n }\n // Update the internal values.\n this._maximum = value;\n // Clamp the current value to the new range.\n this._value = Math.min(this._value, value);\n // Schedule an update the scroll bar.\n this.update();\n }\n /**\n * The scroll bar decrement button node.\n *\n * #### Notes\n * Modifying this node directly can lead to undefined behavior.\n */\n get decrementNode() {\n return this.node.getElementsByClassName('lm-ScrollBar-button')[0];\n }\n /**\n * The scroll bar increment button node.\n *\n * #### Notes\n * Modifying this node directly can lead to undefined behavior.\n */\n get incrementNode() {\n return this.node.getElementsByClassName('lm-ScrollBar-button')[1];\n }\n /**\n * The scroll bar track node.\n *\n * #### Notes\n * Modifying this node directly can lead to undefined behavior.\n */\n get trackNode() {\n return this.node.getElementsByClassName('lm-ScrollBar-track')[0];\n }\n /**\n * The scroll bar thumb node.\n *\n * #### Notes\n * Modifying this node directly can lead to undefined behavior.\n */\n get thumbNode() {\n return this.node.getElementsByClassName('lm-ScrollBar-thumb')[0];\n }\n /**\n * Handle the DOM events for the scroll bar.\n *\n * @param event - The DOM event sent to the scroll bar.\n *\n * #### Notes\n * This method implements the DOM `EventListener` interface and is\n * called in response to events on the scroll bar's DOM node.\n *\n * This should not be called directly by user code.\n */\n handleEvent(event) {\n switch (event.type) {\n case 'mousedown':\n this._evtMouseDown(event);\n break;\n case 'mousemove':\n this._evtMouseMove(event);\n break;\n case 'mouseup':\n this._evtMouseUp(event);\n break;\n case 'keydown':\n this._evtKeyDown(event);\n break;\n case 'contextmenu':\n event.preventDefault();\n event.stopPropagation();\n break;\n }\n }\n /**\n * A method invoked on a 'before-attach' message.\n */\n onBeforeAttach(msg) {\n this.node.addEventListener('mousedown', this);\n this.update();\n }\n /**\n * A method invoked on an 'after-detach' message.\n */\n onAfterDetach(msg) {\n this.node.removeEventListener('mousedown', this);\n this._releaseMouse();\n }\n /**\n * A method invoked on an 'update-request' message.\n */\n onUpdateRequest(msg) {\n // Convert the value and page into percentages.\n let value = (this._value * 100) / this._maximum;\n let page = (this._page * 100) / (this._page + this._maximum);\n // Clamp the value and page to the relevant range.\n value = Math.max(0, Math.min(value, 100));\n page = Math.max(0, Math.min(page, 100));\n // Fetch the thumb style.\n let thumbStyle = this.thumbNode.style;\n // Update the thumb style for the current orientation.\n if (this._orientation === 'horizontal') {\n thumbStyle.top = '';\n thumbStyle.height = '';\n thumbStyle.left = `${value}%`;\n thumbStyle.width = `${page}%`;\n thumbStyle.transform = `translate(${-value}%, 0%)`;\n }\n else {\n thumbStyle.left = '';\n thumbStyle.width = '';\n thumbStyle.top = `${value}%`;\n thumbStyle.height = `${page}%`;\n thumbStyle.transform = `translate(0%, ${-value}%)`;\n }\n }\n /**\n * Handle the `'keydown'` event for the scroll bar.\n */\n _evtKeyDown(event) {\n // Stop all input events during drag.\n event.preventDefault();\n event.stopPropagation();\n // Ignore anything except the `Escape` key.\n if (event.keyCode !== 27) {\n return;\n }\n // Fetch the previous scroll value.\n let value = this._pressData ? this._pressData.value : -1;\n // Release the mouse.\n this._releaseMouse();\n // Restore the old scroll value if possible.\n if (value !== -1) {\n this._moveThumb(value);\n }\n }\n /**\n * Handle the `'mousedown'` event for the scroll bar.\n */\n _evtMouseDown(event) {\n // Do nothing if it's not a left mouse press.\n if (event.button !== 0) {\n return;\n }\n // Send an activate request to the scroll bar. This can be\n // used by message hooks to activate something relevant.\n this.activate();\n // Do nothing if the mouse is already captured.\n if (this._pressData) {\n return;\n }\n // Find the pressed scroll bar part.\n let part = Private$2.findPart(this, event.target);\n // Do nothing if the part is not of interest.\n if (!part) {\n return;\n }\n // Stop the event propagation.\n event.preventDefault();\n event.stopPropagation();\n // Override the mouse cursor.\n let override = Drag.overrideCursor('default');\n // Set up the press data.\n this._pressData = {\n part,\n override,\n delta: -1,\n value: -1,\n mouseX: event.clientX,\n mouseY: event.clientY\n };\n // Add the extra event listeners.\n document.addEventListener('mousemove', this, true);\n document.addEventListener('mouseup', this, true);\n document.addEventListener('keydown', this, true);\n document.addEventListener('contextmenu', this, true);\n // Handle a thumb press.\n if (part === 'thumb') {\n // Fetch the thumb node.\n let thumbNode = this.thumbNode;\n // Fetch the client rect for the thumb.\n let thumbRect = thumbNode.getBoundingClientRect();\n // Update the press data delta for the current orientation.\n if (this._orientation === 'horizontal') {\n this._pressData.delta = event.clientX - thumbRect.left;\n }\n else {\n this._pressData.delta = event.clientY - thumbRect.top;\n }\n // Add the active class to the thumb node.\n thumbNode.classList.add('lm-mod-active');\n // Store the current value in the press data.\n this._pressData.value = this._value;\n // Finished.\n return;\n }\n // Handle a track press.\n if (part === 'track') {\n // Fetch the client rect for the thumb.\n let thumbRect = this.thumbNode.getBoundingClientRect();\n // Determine the direction for the page request.\n let dir;\n if (this._orientation === 'horizontal') {\n dir = event.clientX < thumbRect.left ? 'decrement' : 'increment';\n }\n else {\n dir = event.clientY < thumbRect.top ? 'decrement' : 'increment';\n }\n // Start the repeat timer.\n this._repeatTimer = window.setTimeout(this._onRepeat, 350);\n // Emit the page requested signal.\n this._pageRequested.emit(dir);\n // Finished.\n return;\n }\n // Handle a decrement button press.\n if (part === 'decrement') {\n // Add the active class to the decrement node.\n this.decrementNode.classList.add('lm-mod-active');\n // Start the repeat timer.\n this._repeatTimer = window.setTimeout(this._onRepeat, 350);\n // Emit the step requested signal.\n this._stepRequested.emit('decrement');\n // Finished.\n return;\n }\n // Handle an increment button press.\n if (part === 'increment') {\n // Add the active class to the increment node.\n this.incrementNode.classList.add('lm-mod-active');\n // Start the repeat timer.\n this._repeatTimer = window.setTimeout(this._onRepeat, 350);\n // Emit the step requested signal.\n this._stepRequested.emit('increment');\n // Finished.\n return;\n }\n }\n /**\n * Handle the `'mousemove'` event for the scroll bar.\n */\n _evtMouseMove(event) {\n // Do nothing if no drag is in progress.\n if (!this._pressData) {\n return;\n }\n // Stop the event propagation.\n event.preventDefault();\n event.stopPropagation();\n // Update the mouse position.\n this._pressData.mouseX = event.clientX;\n this._pressData.mouseY = event.clientY;\n // Bail if the thumb is not being dragged.\n if (this._pressData.part !== 'thumb') {\n return;\n }\n // Get the client rect for the thumb and track.\n let thumbRect = this.thumbNode.getBoundingClientRect();\n let trackRect = this.trackNode.getBoundingClientRect();\n // Fetch the scroll geometry based on the orientation.\n let trackPos;\n let trackSpan;\n if (this._orientation === 'horizontal') {\n trackPos = event.clientX - trackRect.left - this._pressData.delta;\n trackSpan = trackRect.width - thumbRect.width;\n }\n else {\n trackPos = event.clientY - trackRect.top - this._pressData.delta;\n trackSpan = trackRect.height - thumbRect.height;\n }\n // Compute the desired value from the scroll geometry.\n let value = trackSpan === 0 ? 0 : (trackPos * this._maximum) / trackSpan;\n // Move the thumb to the computed value.\n this._moveThumb(value);\n }\n /**\n * Handle the `'mouseup'` event for the scroll bar.\n */\n _evtMouseUp(event) {\n // Do nothing if it's not a left mouse release.\n if (event.button !== 0) {\n return;\n }\n // Stop the event propagation.\n event.preventDefault();\n event.stopPropagation();\n // Release the mouse.\n this._releaseMouse();\n }\n /**\n * Release the mouse and restore the node states.\n */\n _releaseMouse() {\n // Bail if there is no press data.\n if (!this._pressData) {\n return;\n }\n // Clear the repeat timer.\n clearTimeout(this._repeatTimer);\n this._repeatTimer = -1;\n // Clear the press data.\n this._pressData.override.dispose();\n this._pressData = null;\n // Remove the extra event listeners.\n document.removeEventListener('mousemove', this, true);\n document.removeEventListener('mouseup', this, true);\n document.removeEventListener('keydown', this, true);\n document.removeEventListener('contextmenu', this, true);\n // Remove the active classes from the nodes.\n this.thumbNode.classList.remove('lm-mod-active');\n this.decrementNode.classList.remove('lm-mod-active');\n this.incrementNode.classList.remove('lm-mod-active');\n }\n /**\n * Move the thumb to the specified position.\n */\n _moveThumb(value) {\n // Clamp the value to the allowed range.\n value = Math.max(0, Math.min(value, this._maximum));\n // Bail if the value does not change.\n if (this._value === value) {\n return;\n }\n // Update the internal value.\n this._value = value;\n // Schedule an update of the scroll bar.\n this.update();\n // Emit the thumb moved signal.\n this._thumbMoved.emit(value);\n }\n}\n/**\n * The namespace for the module implementation details.\n */\nvar Private$2;\n(function (Private) {\n /**\n * Create the DOM node for a scroll bar.\n */\n function createNode() {\n let node = document.createElement('div');\n let decrement = document.createElement('div');\n let increment = document.createElement('div');\n let track = document.createElement('div');\n let thumb = document.createElement('div');\n decrement.className = 'lm-ScrollBar-button';\n increment.className = 'lm-ScrollBar-button';\n decrement.dataset['action'] = 'decrement';\n increment.dataset['action'] = 'increment';\n track.className = 'lm-ScrollBar-track';\n thumb.className = 'lm-ScrollBar-thumb';\n track.appendChild(thumb);\n node.appendChild(decrement);\n node.appendChild(track);\n node.appendChild(increment);\n return node;\n }\n Private.createNode = createNode;\n /**\n * Find the scroll bar part which contains the given target.\n */\n function findPart(scrollBar, target) {\n // Test the thumb.\n if (scrollBar.thumbNode.contains(target)) {\n return 'thumb';\n }\n // Test the track.\n if (scrollBar.trackNode.contains(target)) {\n return 'track';\n }\n // Test the decrement button.\n if (scrollBar.decrementNode.contains(target)) {\n return 'decrement';\n }\n // Test the increment button.\n if (scrollBar.incrementNode.contains(target)) {\n return 'increment';\n }\n // Indicate no match.\n return null;\n }\n Private.findPart = findPart;\n})(Private$2 || (Private$2 = {}));\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * A concrete layout implementation which holds a single widget.\n *\n * #### Notes\n * This class is useful for creating simple container widgets which\n * hold a single child. The child should be positioned with CSS.\n */\nclass SingletonLayout extends Layout {\n constructor() {\n super(...arguments);\n this._widget = null;\n }\n /**\n * Dispose of the resources held by the layout.\n */\n dispose() {\n if (this._widget) {\n let widget = this._widget;\n this._widget = null;\n widget.dispose();\n }\n super.dispose();\n }\n /**\n * Get the child widget for the layout.\n */\n get widget() {\n return this._widget;\n }\n /**\n * Set the child widget for the layout.\n *\n * #### Notes\n * Setting the child widget will cause the old child widget to be\n * automatically disposed. If that is not desired, set the parent\n * of the old child to `null` before assigning a new child.\n */\n set widget(widget) {\n // Remove the widget from its current parent. This is a no-op\n // if the widget's parent is already the layout parent widget.\n if (widget) {\n widget.parent = this.parent;\n }\n // Bail early if the widget does not change.\n if (this._widget === widget) {\n return;\n }\n // Dispose of the old child widget.\n if (this._widget) {\n this._widget.dispose();\n }\n // Update the internal widget.\n this._widget = widget;\n // Attach the new child widget if needed.\n if (this.parent && widget) {\n this.attachWidget(widget);\n }\n }\n /**\n * Create an iterator over the widgets in the layout.\n *\n * @returns A new iterator over the widgets in the layout.\n */\n *[Symbol.iterator]() {\n if (this._widget) {\n yield this._widget;\n }\n }\n /**\n * Remove a widget from the layout.\n *\n * @param widget - The widget to remove from the layout.\n *\n * #### Notes\n * A widget is automatically removed from the layout when its `parent`\n * is set to `null`. This method should only be invoked directly when\n * removing a widget from a layout which has yet to be installed on a\n * parent widget.\n *\n * This method does *not* modify the widget's `parent`.\n */\n removeWidget(widget) {\n // Bail early if the widget does not exist in the layout.\n if (this._widget !== widget) {\n return;\n }\n // Clear the internal widget.\n this._widget = null;\n // If the layout is parented, detach the widget from the DOM.\n if (this.parent) {\n this.detachWidget(widget);\n }\n }\n /**\n * Perform layout initialization which requires the parent widget.\n */\n init() {\n super.init();\n for (const widget of this) {\n this.attachWidget(widget);\n }\n }\n /**\n * Attach a widget to the parent's DOM node.\n *\n * @param index - The current index of the widget in the layout.\n *\n * @param widget - The widget to attach to the parent.\n *\n * #### Notes\n * This method is called automatically by the single layout at the\n * appropriate time. It should not be called directly by user code.\n *\n * The default implementation adds the widgets's node to the parent's\n * node at the proper location, and sends the appropriate attach\n * messages to the widget if the parent is attached to the DOM.\n *\n * Subclasses may reimplement this method to control how the widget's\n * node is added to the parent's node.\n */\n attachWidget(widget) {\n // Send a `'before-attach'` message if the parent is attached.\n if (this.parent.isAttached) {\n MessageLoop.sendMessage(widget, Widget.Msg.BeforeAttach);\n }\n // Add the widget's node to the parent.\n this.parent.node.appendChild(widget.node);\n // Send an `'after-attach'` message if the parent is attached.\n if (this.parent.isAttached) {\n MessageLoop.sendMessage(widget, Widget.Msg.AfterAttach);\n }\n }\n /**\n * Detach a widget from the parent's DOM node.\n *\n * @param widget - The widget to detach from the parent.\n *\n * #### Notes\n * This method is called automatically by the single layout at the\n * appropriate time. It should not be called directly by user code.\n *\n * The default implementation removes the widget's node from the\n * parent's node, and sends the appropriate detach messages to the\n * widget if the parent is attached to the DOM.\n *\n * Subclasses may reimplement this method to control how the widget's\n * node is removed from the parent's node.\n */\n detachWidget(widget) {\n // Send a `'before-detach'` message if the parent is attached.\n if (this.parent.isAttached) {\n MessageLoop.sendMessage(widget, Widget.Msg.BeforeDetach);\n }\n // Remove the widget's node from the parent.\n this.parent.node.removeChild(widget.node);\n // Send an `'after-detach'` message if the parent is attached.\n if (this.parent.isAttached) {\n MessageLoop.sendMessage(widget, Widget.Msg.AfterDetach);\n }\n }\n}\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * A layout where visible widgets are stacked atop one another.\n *\n * #### Notes\n * The Z-order of the visible widgets follows their layout order.\n */\nclass StackedLayout extends PanelLayout {\n constructor(options = {}) {\n super(options);\n this._dirty = false;\n this._items = [];\n this._box = null;\n this._hiddenMode =\n options.hiddenMode !== undefined\n ? options.hiddenMode\n : Widget.HiddenMode.Display;\n }\n /**\n * The method for hiding widgets.\n *\n * #### Notes\n * If there is only one child widget, `Display` hiding mode will be used\n * regardless of this setting.\n */\n get hiddenMode() {\n return this._hiddenMode;\n }\n /**\n * Set the method for hiding widgets.\n *\n * #### Notes\n * If there is only one child widget, `Display` hiding mode will be used\n * regardless of this setting.\n */\n set hiddenMode(v) {\n if (this._hiddenMode === v) {\n return;\n }\n this._hiddenMode = v;\n if (this.widgets.length > 1) {\n this.widgets.forEach(w => {\n w.hiddenMode = this._hiddenMode;\n });\n }\n }\n /**\n * Dispose of the resources held by the layout.\n */\n dispose() {\n // Dispose of the layout items.\n for (const item of this._items) {\n item.dispose();\n }\n // Clear the layout state.\n this._box = null;\n this._items.length = 0;\n // Dispose of the rest of the layout.\n super.dispose();\n }\n /**\n * Attach a widget to the parent's DOM node.\n *\n * @param index - The current index of the widget in the layout.\n *\n * @param widget - The widget to attach to the parent.\n *\n * #### Notes\n * This is a reimplementation of the superclass method.\n */\n attachWidget(index, widget) {\n // Using transform create an additional layer in the pixel pipeline\n // to limit the number of layer, it is set only if there is more than one widget.\n if (this._hiddenMode === Widget.HiddenMode.Scale &&\n this._items.length > 0) {\n if (this._items.length === 1) {\n this.widgets[0].hiddenMode = Widget.HiddenMode.Scale;\n }\n widget.hiddenMode = Widget.HiddenMode.Scale;\n }\n else {\n widget.hiddenMode = Widget.HiddenMode.Display;\n }\n // Create and add a new layout item for the widget.\n ArrayExt.insert(this._items, index, new LayoutItem(widget));\n // Send a `'before-attach'` message if the parent is attached.\n if (this.parent.isAttached) {\n MessageLoop.sendMessage(widget, Widget.Msg.BeforeAttach);\n }\n // Add the widget's node to the parent.\n this.parent.node.appendChild(widget.node);\n // Send an `'after-attach'` message if the parent is attached.\n if (this.parent.isAttached) {\n MessageLoop.sendMessage(widget, Widget.Msg.AfterAttach);\n }\n // Post a fit request for the parent widget.\n this.parent.fit();\n }\n /**\n * Move a widget in the parent's DOM node.\n *\n * @param fromIndex - The previous index of the widget in the layout.\n *\n * @param toIndex - The current index of the widget in the layout.\n *\n * @param widget - The widget to move in the parent.\n *\n * #### Notes\n * This is a reimplementation of the superclass method.\n */\n moveWidget(fromIndex, toIndex, widget) {\n // Move the layout item for the widget.\n ArrayExt.move(this._items, fromIndex, toIndex);\n // Post an update request for the parent widget.\n this.parent.update();\n }\n /**\n * Detach a widget from the parent's DOM node.\n *\n * @param index - The previous index of the widget in the layout.\n *\n * @param widget - The widget to detach from the parent.\n *\n * #### Notes\n * This is a reimplementation of the superclass method.\n */\n detachWidget(index, widget) {\n // Remove the layout item for the widget.\n let item = ArrayExt.removeAt(this._items, index);\n // Send a `'before-detach'` message if the parent is attached.\n if (this.parent.isAttached) {\n MessageLoop.sendMessage(widget, Widget.Msg.BeforeDetach);\n }\n // Remove the widget's node from the parent.\n this.parent.node.removeChild(widget.node);\n // Send an `'after-detach'` message if the parent is attached.\n if (this.parent.isAttached) {\n MessageLoop.sendMessage(widget, Widget.Msg.AfterDetach);\n }\n // Reset the z-index for the widget.\n item.widget.node.style.zIndex = '';\n // Reset the hidden mode for the widget.\n if (this._hiddenMode === Widget.HiddenMode.Scale) {\n widget.hiddenMode = Widget.HiddenMode.Display;\n // Reset the hidden mode for the first widget if necessary.\n if (this._items.length === 1) {\n this._items[0].widget.hiddenMode = Widget.HiddenMode.Display;\n }\n }\n // Dispose of the layout item.\n item.dispose();\n // Post a fit request for the parent widget.\n this.parent.fit();\n }\n /**\n * A message handler invoked on a `'before-show'` message.\n */\n onBeforeShow(msg) {\n super.onBeforeShow(msg);\n this.parent.update();\n }\n /**\n * A message handler invoked on a `'before-attach'` message.\n */\n onBeforeAttach(msg) {\n super.onBeforeAttach(msg);\n this.parent.fit();\n }\n /**\n * A message handler invoked on a `'child-shown'` message.\n */\n onChildShown(msg) {\n this.parent.fit();\n }\n /**\n * A message handler invoked on a `'child-hidden'` message.\n */\n onChildHidden(msg) {\n this.parent.fit();\n }\n /**\n * A message handler invoked on a `'resize'` message.\n */\n onResize(msg) {\n if (this.parent.isVisible) {\n this._update(msg.width, msg.height);\n }\n }\n /**\n * A message handler invoked on an `'update-request'` message.\n */\n onUpdateRequest(msg) {\n if (this.parent.isVisible) {\n this._update(-1, -1);\n }\n }\n /**\n * A message handler invoked on a `'fit-request'` message.\n */\n onFitRequest(msg) {\n if (this.parent.isAttached) {\n this._fit();\n }\n }\n /**\n * Fit the layout to the total size required by the widgets.\n */\n _fit() {\n // Set up the computed minimum size.\n let minW = 0;\n let minH = 0;\n // Update the computed minimum size.\n for (let i = 0, n = this._items.length; i < n; ++i) {\n // Fetch the item.\n let item = this._items[i];\n // Ignore hidden items.\n if (item.isHidden) {\n continue;\n }\n // Update the size limits for the item.\n item.fit();\n // Update the computed minimum size.\n minW = Math.max(minW, item.minWidth);\n minH = Math.max(minH, item.minHeight);\n }\n // Update the box sizing and add it to the computed min size.\n let box = (this._box = ElementExt.boxSizing(this.parent.node));\n minW += box.horizontalSum;\n minH += box.verticalSum;\n // Update the parent's min size constraints.\n let style = this.parent.node.style;\n style.minWidth = `${minW}px`;\n style.minHeight = `${minH}px`;\n // Set the dirty flag to ensure only a single update occurs.\n this._dirty = true;\n // Notify the ancestor that it should fit immediately. This may\n // cause a resize of the parent, fulfilling the required update.\n if (this.parent.parent) {\n MessageLoop.sendMessage(this.parent.parent, Widget.Msg.FitRequest);\n }\n // If the dirty flag is still set, the parent was not resized.\n // Trigger the required update on the parent widget immediately.\n if (this._dirty) {\n MessageLoop.sendMessage(this.parent, Widget.Msg.UpdateRequest);\n }\n }\n /**\n * Update the layout position and size of the widgets.\n *\n * The parent offset dimensions should be `-1` if unknown.\n */\n _update(offsetWidth, offsetHeight) {\n // Clear the dirty flag to indicate the update occurred.\n this._dirty = false;\n // Compute the visible item count.\n let nVisible = 0;\n for (let i = 0, n = this._items.length; i < n; ++i) {\n nVisible += +!this._items[i].isHidden;\n }\n // Bail early if there are no visible items to layout.\n if (nVisible === 0) {\n return;\n }\n // Measure the parent if the offset dimensions are unknown.\n if (offsetWidth < 0) {\n offsetWidth = this.parent.node.offsetWidth;\n }\n if (offsetHeight < 0) {\n offsetHeight = this.parent.node.offsetHeight;\n }\n // Ensure the parent box sizing data is computed.\n if (!this._box) {\n this._box = ElementExt.boxSizing(this.parent.node);\n }\n // Compute the actual layout bounds adjusted for border and padding.\n let top = this._box.paddingTop;\n let left = this._box.paddingLeft;\n let width = offsetWidth - this._box.horizontalSum;\n let height = offsetHeight - this._box.verticalSum;\n // Update the widget stacking order and layout geometry.\n for (let i = 0, n = this._items.length; i < n; ++i) {\n // Fetch the item.\n let item = this._items[i];\n // Ignore hidden items.\n if (item.isHidden) {\n continue;\n }\n // Set the z-index for the widget.\n item.widget.node.style.zIndex = `${i}`;\n // Update the item geometry.\n item.update(left, top, width, height);\n }\n }\n}\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * A panel where visible widgets are stacked atop one another.\n *\n * #### Notes\n * This class provides a convenience wrapper around a {@link StackedLayout}.\n */\nclass StackedPanel extends Panel {\n /**\n * Construct a new stacked panel.\n *\n * @param options - The options for initializing the panel.\n */\n constructor(options = {}) {\n super({ layout: Private$1.createLayout(options) });\n this._widgetRemoved = new Signal(this);\n this.addClass('lm-StackedPanel');\n }\n /**\n * The method for hiding widgets.\n *\n * #### Notes\n * If there is only one child widget, `Display` hiding mode will be used\n * regardless of this setting.\n */\n get hiddenMode() {\n return this.layout.hiddenMode;\n }\n /**\n * Set the method for hiding widgets.\n *\n * #### Notes\n * If there is only one child widget, `Display` hiding mode will be used\n * regardless of this setting.\n */\n set hiddenMode(v) {\n this.layout.hiddenMode = v;\n }\n /**\n * A signal emitted when a widget is removed from a stacked panel.\n */\n get widgetRemoved() {\n return this._widgetRemoved;\n }\n /**\n * A message handler invoked on a `'child-added'` message.\n */\n onChildAdded(msg) {\n msg.child.addClass('lm-StackedPanel-child');\n }\n /**\n * A message handler invoked on a `'child-removed'` message.\n */\n onChildRemoved(msg) {\n msg.child.removeClass('lm-StackedPanel-child');\n this._widgetRemoved.emit(msg.child);\n }\n}\n/**\n * The namespace for the module implementation details.\n */\nvar Private$1;\n(function (Private) {\n /**\n * Create a stacked layout for the given panel options.\n */\n function createLayout(options) {\n return options.layout || new StackedLayout();\n }\n Private.createLayout = createLayout;\n})(Private$1 || (Private$1 = {}));\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * A widget which combines a `TabBar` and a `StackedPanel`.\n *\n * #### Notes\n * This is a simple panel which handles the common case of a tab bar\n * placed next to a content area. The selected tab controls the widget\n * which is shown in the content area.\n *\n * For use cases which require more control than is provided by this\n * panel, the `TabBar` widget may be used independently.\n */\nclass TabPanel extends Widget {\n /**\n * Construct a new tab panel.\n *\n * @param options - The options for initializing the tab panel.\n */\n constructor(options = {}) {\n super();\n this._currentChanged = new Signal(this);\n this._addRequested = new Signal(this);\n this.addClass('lm-TabPanel');\n // Create the tab bar and stacked panel.\n this.tabBar = new TabBar(options);\n this.tabBar.addClass('lm-TabPanel-tabBar');\n this.stackedPanel = new StackedPanel();\n this.stackedPanel.addClass('lm-TabPanel-stackedPanel');\n // Connect the tab bar signal handlers.\n this.tabBar.tabMoved.connect(this._onTabMoved, this);\n this.tabBar.currentChanged.connect(this._onCurrentChanged, this);\n this.tabBar.tabCloseRequested.connect(this._onTabCloseRequested, this);\n this.tabBar.tabActivateRequested.connect(this._onTabActivateRequested, this);\n this.tabBar.addRequested.connect(this._onTabAddRequested, this);\n // Connect the stacked panel signal handlers.\n this.stackedPanel.widgetRemoved.connect(this._onWidgetRemoved, this);\n // Get the data related to the placement.\n this._tabPlacement = options.tabPlacement || 'top';\n let direction = Private.directionFromPlacement(this._tabPlacement);\n let orientation = Private.orientationFromPlacement(this._tabPlacement);\n // Configure the tab bar for the placement.\n this.tabBar.orientation = orientation;\n this.tabBar.dataset['placement'] = this._tabPlacement;\n // Create the box layout.\n let layout = new BoxLayout({ direction, spacing: 0 });\n // Set the stretch factors for the child widgets.\n BoxLayout.setStretch(this.tabBar, 0);\n BoxLayout.setStretch(this.stackedPanel, 1);\n // Add the child widgets to the layout.\n layout.addWidget(this.tabBar);\n layout.addWidget(this.stackedPanel);\n // Install the layout on the tab panel.\n this.layout = layout;\n }\n /**\n * A signal emitted when the current tab is changed.\n *\n * #### Notes\n * This signal is emitted when the currently selected tab is changed\n * either through user or programmatic interaction.\n *\n * Notably, this signal is not emitted when the index of the current\n * tab changes due to tabs being inserted, removed, or moved. It is\n * only emitted when the actual current tab node is changed.\n */\n get currentChanged() {\n return this._currentChanged;\n }\n /**\n * Get the index of the currently selected tab.\n *\n * #### Notes\n * This will be `-1` if no tab is selected.\n */\n get currentIndex() {\n return this.tabBar.currentIndex;\n }\n /**\n * Set the index of the currently selected tab.\n *\n * #### Notes\n * If the index is out of range, it will be set to `-1`.\n */\n set currentIndex(value) {\n this.tabBar.currentIndex = value;\n }\n /**\n * Get the currently selected widget.\n *\n * #### Notes\n * This will be `null` if there is no selected tab.\n */\n get currentWidget() {\n let title = this.tabBar.currentTitle;\n return title ? title.owner : null;\n }\n /**\n * Set the currently selected widget.\n *\n * #### Notes\n * If the widget is not in the panel, it will be set to `null`.\n */\n set currentWidget(value) {\n this.tabBar.currentTitle = value ? value.title : null;\n }\n /**\n * Get the whether the tabs are movable by the user.\n *\n * #### Notes\n * Tabs can always be moved programmatically.\n */\n get tabsMovable() {\n return this.tabBar.tabsMovable;\n }\n /**\n * Set the whether the tabs are movable by the user.\n *\n * #### Notes\n * Tabs can always be moved programmatically.\n */\n set tabsMovable(value) {\n this.tabBar.tabsMovable = value;\n }\n /**\n * Get the whether the add button is enabled.\n *\n */\n get addButtonEnabled() {\n return this.tabBar.addButtonEnabled;\n }\n /**\n * Set the whether the add button is enabled.\n *\n */\n set addButtonEnabled(value) {\n this.tabBar.addButtonEnabled = value;\n }\n /**\n * Get the tab placement for the tab panel.\n *\n * #### Notes\n * This controls the position of the tab bar relative to the content.\n */\n get tabPlacement() {\n return this._tabPlacement;\n }\n /**\n * Set the tab placement for the tab panel.\n *\n * #### Notes\n * This controls the position of the tab bar relative to the content.\n */\n set tabPlacement(value) {\n // Bail if the placement does not change.\n if (this._tabPlacement === value) {\n return;\n }\n // Update the internal value.\n this._tabPlacement = value;\n // Get the values related to the placement.\n let direction = Private.directionFromPlacement(value);\n let orientation = Private.orientationFromPlacement(value);\n // Configure the tab bar for the placement.\n this.tabBar.orientation = orientation;\n this.tabBar.dataset['placement'] = value;\n // Update the layout direction.\n this.layout.direction = direction;\n }\n /**\n * A signal emitted when the add button on a tab bar is clicked.\n *\n */\n get addRequested() {\n return this._addRequested;\n }\n /**\n * A read-only array of the widgets in the panel.\n */\n get widgets() {\n return this.stackedPanel.widgets;\n }\n /**\n * Add a widget to the end of the tab panel.\n *\n * @param widget - The widget to add to the tab panel.\n *\n * #### Notes\n * If the widget is already contained in the panel, it will be moved.\n *\n * The widget's `title` is used to populate the tab.\n */\n addWidget(widget) {\n this.insertWidget(this.widgets.length, widget);\n }\n /**\n * Insert a widget into the tab panel at a specified index.\n *\n * @param index - The index at which to insert the widget.\n *\n * @param widget - The widget to insert into to the tab panel.\n *\n * #### Notes\n * If the widget is already contained in the panel, it will be moved.\n *\n * The widget's `title` is used to populate the tab.\n */\n insertWidget(index, widget) {\n if (widget !== this.currentWidget) {\n widget.hide();\n }\n this.stackedPanel.insertWidget(index, widget);\n this.tabBar.insertTab(index, widget.title);\n widget.node.setAttribute('role', 'tabpanel');\n let renderer = this.tabBar.renderer;\n if (renderer instanceof TabBar.Renderer) {\n let tabId = renderer.createTabKey({\n title: widget.title,\n current: false,\n zIndex: 0\n });\n widget.node.setAttribute('aria-labelledby', tabId);\n }\n }\n /**\n * Handle the `currentChanged` signal from the tab bar.\n */\n _onCurrentChanged(sender, args) {\n // Extract the previous and current title from the args.\n let { previousIndex, previousTitle, currentIndex, currentTitle } = args;\n // Extract the widgets from the titles.\n let previousWidget = previousTitle ? previousTitle.owner : null;\n let currentWidget = currentTitle ? currentTitle.owner : null;\n // Hide the previous widget.\n if (previousWidget) {\n previousWidget.hide();\n }\n // Show the current widget.\n if (currentWidget) {\n currentWidget.show();\n }\n // Emit the `currentChanged` signal for the tab panel.\n this._currentChanged.emit({\n previousIndex,\n previousWidget,\n currentIndex,\n currentWidget\n });\n // Flush the message loop on IE and Edge to prevent flicker.\n if (Platform.IS_EDGE || Platform.IS_IE) {\n MessageLoop.flush();\n }\n }\n /**\n * Handle the `tabAddRequested` signal from the tab bar.\n */\n _onTabAddRequested(sender, args) {\n this._addRequested.emit(sender);\n }\n /**\n * Handle the `tabActivateRequested` signal from the tab bar.\n */\n _onTabActivateRequested(sender, args) {\n args.title.owner.activate();\n }\n /**\n * Handle the `tabCloseRequested` signal from the tab bar.\n */\n _onTabCloseRequested(sender, args) {\n args.title.owner.close();\n }\n /**\n * Handle the `tabMoved` signal from the tab bar.\n */\n _onTabMoved(sender, args) {\n this.stackedPanel.insertWidget(args.toIndex, args.title.owner);\n }\n /**\n * Handle the `widgetRemoved` signal from the stacked panel.\n */\n _onWidgetRemoved(sender, widget) {\n widget.node.removeAttribute('role');\n widget.node.removeAttribute('aria-labelledby');\n this.tabBar.removeTab(widget.title);\n }\n}\n/**\n * The namespace for the module implementation details.\n */\nvar Private;\n(function (Private) {\n /**\n * Convert a tab placement to tab bar orientation.\n */\n function orientationFromPlacement(plc) {\n return placementToOrientationMap[plc];\n }\n Private.orientationFromPlacement = orientationFromPlacement;\n /**\n * Convert a tab placement to a box layout direction.\n */\n function directionFromPlacement(plc) {\n return placementToDirectionMap[plc];\n }\n Private.directionFromPlacement = directionFromPlacement;\n /**\n * A mapping of tab placement to tab bar orientation.\n */\n const placementToOrientationMap = {\n top: 'horizontal',\n left: 'vertical',\n right: 'vertical',\n bottom: 'horizontal'\n };\n /**\n * A mapping of tab placement to box layout direction.\n */\n const placementToDirectionMap = {\n top: 'top-to-bottom',\n left: 'left-to-right',\n right: 'right-to-left',\n bottom: 'bottom-to-top'\n };\n})(Private || (Private = {}));\n\nexport { AccordionLayout, AccordionPanel, BoxEngine, BoxLayout, BoxPanel, BoxSizer, CommandPalette, ContextMenu, DockLayout, DockPanel, FocusTracker, GridLayout, Layout, LayoutItem, Menu, MenuBar, Panel, PanelLayout, ScrollBar, SingletonLayout, SplitLayout, SplitPanel, StackedLayout, StackedPanel, TabBar, TabPanel, Title, Widget };\n//# sourceMappingURL=index.es6.js.map\n","import { CommandRegistry } from '@lumino/commands';\nimport { PromiseDelegate } from '@lumino/coreutils';\nimport { ContextMenu, Widget } from '@lumino/widgets';\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * The namespace for array-specific algorithms.\n */\nvar ArrayExt;\n(function (ArrayExt) {\n /**\n * Find the index of the first occurrence of a value in an array.\n *\n * @param array - The array-like object to search.\n *\n * @param value - The value to locate in the array. Values are\n * compared using strict `===` equality.\n *\n * @param start - The index of the first element in the range to be\n * searched, inclusive. The default value is `0`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @param stop - The index of the last element in the range to be\n * searched, inclusive. The default value is `-1`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @returns The index of the first occurrence of the value, or `-1`\n * if the value is not found.\n *\n * #### Notes\n * If `stop < start` the search will wrap at the end of the array.\n *\n * #### Complexity\n * Linear.\n *\n * #### Undefined Behavior\n * A `start` or `stop` which is non-integral.\n *\n * #### Example\n * ```typescript\n * import { ArrayExt } from '@lumino/algorithm';\n *\n * let data = ['one', 'two', 'three', 'four', 'one'];\n * ArrayExt.firstIndexOf(data, 'red'); // -1\n * ArrayExt.firstIndexOf(data, 'one'); // 0\n * ArrayExt.firstIndexOf(data, 'one', 1); // 4\n * ArrayExt.firstIndexOf(data, 'two', 2); // -1\n * ArrayExt.firstIndexOf(data, 'two', 2, 1); // 1\n * ```\n */\n function firstIndexOf(array, value, start = 0, stop = -1) {\n let n = array.length;\n if (n === 0) {\n return -1;\n }\n if (start < 0) {\n start = Math.max(0, start + n);\n }\n else {\n start = Math.min(start, n - 1);\n }\n if (stop < 0) {\n stop = Math.max(0, stop + n);\n }\n else {\n stop = Math.min(stop, n - 1);\n }\n let span;\n if (stop < start) {\n span = stop + 1 + (n - start);\n }\n else {\n span = stop - start + 1;\n }\n for (let i = 0; i < span; ++i) {\n let j = (start + i) % n;\n if (array[j] === value) {\n return j;\n }\n }\n return -1;\n }\n ArrayExt.firstIndexOf = firstIndexOf;\n /**\n * Find the index of the last occurrence of a value in an array.\n *\n * @param array - The array-like object to search.\n *\n * @param value - The value to locate in the array. Values are\n * compared using strict `===` equality.\n *\n * @param start - The index of the first element in the range to be\n * searched, inclusive. The default value is `-1`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @param stop - The index of the last element in the range to be\n * searched, inclusive. The default value is `0`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @returns The index of the last occurrence of the value, or `-1`\n * if the value is not found.\n *\n * #### Notes\n * If `start < stop` the search will wrap at the front of the array.\n *\n * #### Complexity\n * Linear.\n *\n * #### Undefined Behavior\n * A `start` or `stop` which is non-integral.\n *\n * #### Example\n * ```typescript\n * import { ArrayExt } from '@lumino/algorithm';\n *\n * let data = ['one', 'two', 'three', 'four', 'one'];\n * ArrayExt.lastIndexOf(data, 'red'); // -1\n * ArrayExt.lastIndexOf(data, 'one'); // 4\n * ArrayExt.lastIndexOf(data, 'one', 1); // 0\n * ArrayExt.lastIndexOf(data, 'two', 0); // -1\n * ArrayExt.lastIndexOf(data, 'two', 0, 1); // 1\n * ```\n */\n function lastIndexOf(array, value, start = -1, stop = 0) {\n let n = array.length;\n if (n === 0) {\n return -1;\n }\n if (start < 0) {\n start = Math.max(0, start + n);\n }\n else {\n start = Math.min(start, n - 1);\n }\n if (stop < 0) {\n stop = Math.max(0, stop + n);\n }\n else {\n stop = Math.min(stop, n - 1);\n }\n let span;\n if (start < stop) {\n span = start + 1 + (n - stop);\n }\n else {\n span = start - stop + 1;\n }\n for (let i = 0; i < span; ++i) {\n let j = (start - i + n) % n;\n if (array[j] === value) {\n return j;\n }\n }\n return -1;\n }\n ArrayExt.lastIndexOf = lastIndexOf;\n /**\n * Find the index of the first value which matches a predicate.\n *\n * @param array - The array-like object to search.\n *\n * @param fn - The predicate function to apply to the values.\n *\n * @param start - The index of the first element in the range to be\n * searched, inclusive. The default value is `0`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @param stop - The index of the last element in the range to be\n * searched, inclusive. The default value is `-1`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @returns The index of the first matching value, or `-1` if no\n * matching value is found.\n *\n * #### Notes\n * If `stop < start` the search will wrap at the end of the array.\n *\n * #### Complexity\n * Linear.\n *\n * #### Undefined Behavior\n * A `start` or `stop` which is non-integral.\n *\n * Modifying the length of the array while searching.\n *\n * #### Example\n * ```typescript\n * import { ArrayExt } from '@lumino/algorithm';\n *\n * function isEven(value: number): boolean {\n * return value % 2 === 0;\n * }\n *\n * let data = [1, 2, 3, 4, 3, 2, 1];\n * ArrayExt.findFirstIndex(data, isEven); // 1\n * ArrayExt.findFirstIndex(data, isEven, 4); // 5\n * ArrayExt.findFirstIndex(data, isEven, 6); // -1\n * ArrayExt.findFirstIndex(data, isEven, 6, 5); // 1\n * ```\n */\n function findFirstIndex(array, fn, start = 0, stop = -1) {\n let n = array.length;\n if (n === 0) {\n return -1;\n }\n if (start < 0) {\n start = Math.max(0, start + n);\n }\n else {\n start = Math.min(start, n - 1);\n }\n if (stop < 0) {\n stop = Math.max(0, stop + n);\n }\n else {\n stop = Math.min(stop, n - 1);\n }\n let span;\n if (stop < start) {\n span = stop + 1 + (n - start);\n }\n else {\n span = stop - start + 1;\n }\n for (let i = 0; i < span; ++i) {\n let j = (start + i) % n;\n if (fn(array[j], j)) {\n return j;\n }\n }\n return -1;\n }\n ArrayExt.findFirstIndex = findFirstIndex;\n /**\n * Find the index of the last value which matches a predicate.\n *\n * @param object - The array-like object to search.\n *\n * @param fn - The predicate function to apply to the values.\n *\n * @param start - The index of the first element in the range to be\n * searched, inclusive. The default value is `-1`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @param stop - The index of the last element in the range to be\n * searched, inclusive. The default value is `0`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @returns The index of the last matching value, or `-1` if no\n * matching value is found.\n *\n * #### Notes\n * If `start < stop` the search will wrap at the front of the array.\n *\n * #### Complexity\n * Linear.\n *\n * #### Undefined Behavior\n * A `start` or `stop` which is non-integral.\n *\n * Modifying the length of the array while searching.\n *\n * #### Example\n * ```typescript\n * import { ArrayExt } from '@lumino/algorithm';\n *\n * function isEven(value: number): boolean {\n * return value % 2 === 0;\n * }\n *\n * let data = [1, 2, 3, 4, 3, 2, 1];\n * ArrayExt.findLastIndex(data, isEven); // 5\n * ArrayExt.findLastIndex(data, isEven, 4); // 3\n * ArrayExt.findLastIndex(data, isEven, 0); // -1\n * ArrayExt.findLastIndex(data, isEven, 0, 1); // 5\n * ```\n */\n function findLastIndex(array, fn, start = -1, stop = 0) {\n let n = array.length;\n if (n === 0) {\n return -1;\n }\n if (start < 0) {\n start = Math.max(0, start + n);\n }\n else {\n start = Math.min(start, n - 1);\n }\n if (stop < 0) {\n stop = Math.max(0, stop + n);\n }\n else {\n stop = Math.min(stop, n - 1);\n }\n let d;\n if (start < stop) {\n d = start + 1 + (n - stop);\n }\n else {\n d = start - stop + 1;\n }\n for (let i = 0; i < d; ++i) {\n let j = (start - i + n) % n;\n if (fn(array[j], j)) {\n return j;\n }\n }\n return -1;\n }\n ArrayExt.findLastIndex = findLastIndex;\n /**\n * Find the first value which matches a predicate.\n *\n * @param array - The array-like object to search.\n *\n * @param fn - The predicate function to apply to the values.\n *\n * @param start - The index of the first element in the range to be\n * searched, inclusive. The default value is `0`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @param stop - The index of the last element in the range to be\n * searched, inclusive. The default value is `-1`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @returns The first matching value, or `undefined` if no matching\n * value is found.\n *\n * #### Notes\n * If `stop < start` the search will wrap at the end of the array.\n *\n * #### Complexity\n * Linear.\n *\n * #### Undefined Behavior\n * A `start` or `stop` which is non-integral.\n *\n * Modifying the length of the array while searching.\n *\n * #### Example\n * ```typescript\n * import { ArrayExt } from '@lumino/algorithm';\n *\n * function isEven(value: number): boolean {\n * return value % 2 === 0;\n * }\n *\n * let data = [1, 2, 3, 4, 3, 2, 1];\n * ArrayExt.findFirstValue(data, isEven); // 2\n * ArrayExt.findFirstValue(data, isEven, 2); // 4\n * ArrayExt.findFirstValue(data, isEven, 6); // undefined\n * ArrayExt.findFirstValue(data, isEven, 6, 5); // 2\n * ```\n */\n function findFirstValue(array, fn, start = 0, stop = -1) {\n let index = findFirstIndex(array, fn, start, stop);\n return index !== -1 ? array[index] : undefined;\n }\n ArrayExt.findFirstValue = findFirstValue;\n /**\n * Find the last value which matches a predicate.\n *\n * @param object - The array-like object to search.\n *\n * @param fn - The predicate function to apply to the values.\n *\n * @param start - The index of the first element in the range to be\n * searched, inclusive. The default value is `-1`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @param stop - The index of the last element in the range to be\n * searched, inclusive. The default value is `0`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @returns The last matching value, or `undefined` if no matching\n * value is found.\n *\n * #### Notes\n * If `start < stop` the search will wrap at the front of the array.\n *\n * #### Complexity\n * Linear.\n *\n * #### Undefined Behavior\n * A `start` or `stop` which is non-integral.\n *\n * Modifying the length of the array while searching.\n *\n * #### Example\n * ```typescript\n * import { ArrayExt } from '@lumino/algorithm';\n *\n * function isEven(value: number): boolean {\n * return value % 2 === 0;\n * }\n *\n * let data = [1, 2, 3, 4, 3, 2, 1];\n * ArrayExt.findLastValue(data, isEven); // 2\n * ArrayExt.findLastValue(data, isEven, 4); // 4\n * ArrayExt.findLastValue(data, isEven, 0); // undefined\n * ArrayExt.findLastValue(data, isEven, 0, 1); // 2\n * ```\n */\n function findLastValue(array, fn, start = -1, stop = 0) {\n let index = findLastIndex(array, fn, start, stop);\n return index !== -1 ? array[index] : undefined;\n }\n ArrayExt.findLastValue = findLastValue;\n /**\n * Find the index of the first element which compares `>=` to a value.\n *\n * @param array - The sorted array-like object to search.\n *\n * @param value - The value to locate in the array.\n *\n * @param fn - The 3-way comparison function to apply to the values.\n * It should return `< 0` if an element is less than a value, `0` if\n * an element is equal to a value, or `> 0` if an element is greater\n * than a value.\n *\n * @param start - The index of the first element in the range to be\n * searched, inclusive. The default value is `0`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @param stop - The index of the last element in the range to be\n * searched, inclusive. The default value is `-1`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @returns The index of the first element which compares `>=` to the\n * value, or `length` if there is no such element. If the computed\n * index for `stop` is less than `start`, then the computed index\n * for `start` is returned.\n *\n * #### Notes\n * The array must already be sorted in ascending order according to\n * the comparison function.\n *\n * #### Complexity\n * Logarithmic.\n *\n * #### Undefined Behavior\n * Searching a range which is not sorted in ascending order.\n *\n * A `start` or `stop` which is non-integral.\n *\n * Modifying the length of the array while searching.\n *\n * #### Example\n * ```typescript\n * import { ArrayExt } from '@lumino/algorithm';\n *\n * function numberCmp(a: number, b: number): number {\n * return a - b;\n * }\n *\n * let data = [0, 3, 4, 7, 7, 9];\n * ArrayExt.lowerBound(data, 0, numberCmp); // 0\n * ArrayExt.lowerBound(data, 6, numberCmp); // 3\n * ArrayExt.lowerBound(data, 7, numberCmp); // 3\n * ArrayExt.lowerBound(data, -1, numberCmp); // 0\n * ArrayExt.lowerBound(data, 10, numberCmp); // 6\n * ```\n */\n function lowerBound(array, value, fn, start = 0, stop = -1) {\n let n = array.length;\n if (n === 0) {\n return 0;\n }\n if (start < 0) {\n start = Math.max(0, start + n);\n }\n else {\n start = Math.min(start, n - 1);\n }\n if (stop < 0) {\n stop = Math.max(0, stop + n);\n }\n else {\n stop = Math.min(stop, n - 1);\n }\n let begin = start;\n let span = stop - start + 1;\n while (span > 0) {\n let half = span >> 1;\n let middle = begin + half;\n if (fn(array[middle], value) < 0) {\n begin = middle + 1;\n span -= half + 1;\n }\n else {\n span = half;\n }\n }\n return begin;\n }\n ArrayExt.lowerBound = lowerBound;\n /**\n * Find the index of the first element which compares `>` than a value.\n *\n * @param array - The sorted array-like object to search.\n *\n * @param value - The value to locate in the array.\n *\n * @param fn - The 3-way comparison function to apply to the values.\n * It should return `< 0` if an element is less than a value, `0` if\n * an element is equal to a value, or `> 0` if an element is greater\n * than a value.\n *\n * @param start - The index of the first element in the range to be\n * searched, inclusive. The default value is `0`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @param stop - The index of the last element in the range to be\n * searched, inclusive. The default value is `-1`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @returns The index of the first element which compares `>` than the\n * value, or `length` if there is no such element. If the computed\n * index for `stop` is less than `start`, then the computed index\n * for `start` is returned.\n *\n * #### Notes\n * The array must already be sorted in ascending order according to\n * the comparison function.\n *\n * #### Complexity\n * Logarithmic.\n *\n * #### Undefined Behavior\n * Searching a range which is not sorted in ascending order.\n *\n * A `start` or `stop` which is non-integral.\n *\n * Modifying the length of the array while searching.\n *\n * #### Example\n * ```typescript\n * import { ArrayExt } from '@lumino/algorithm';\n *\n * function numberCmp(a: number, b: number): number {\n * return a - b;\n * }\n *\n * let data = [0, 3, 4, 7, 7, 9];\n * ArrayExt.upperBound(data, 0, numberCmp); // 1\n * ArrayExt.upperBound(data, 6, numberCmp); // 3\n * ArrayExt.upperBound(data, 7, numberCmp); // 5\n * ArrayExt.upperBound(data, -1, numberCmp); // 0\n * ArrayExt.upperBound(data, 10, numberCmp); // 6\n * ```\n */\n function upperBound(array, value, fn, start = 0, stop = -1) {\n let n = array.length;\n if (n === 0) {\n return 0;\n }\n if (start < 0) {\n start = Math.max(0, start + n);\n }\n else {\n start = Math.min(start, n - 1);\n }\n if (stop < 0) {\n stop = Math.max(0, stop + n);\n }\n else {\n stop = Math.min(stop, n - 1);\n }\n let begin = start;\n let span = stop - start + 1;\n while (span > 0) {\n let half = span >> 1;\n let middle = begin + half;\n if (fn(array[middle], value) > 0) {\n span = half;\n }\n else {\n begin = middle + 1;\n span -= half + 1;\n }\n }\n return begin;\n }\n ArrayExt.upperBound = upperBound;\n /**\n * Test whether two arrays are shallowly equal.\n *\n * @param a - The first array-like object to compare.\n *\n * @param b - The second array-like object to compare.\n *\n * @param fn - The comparison function to apply to the elements. It\n * should return `true` if the elements are \"equal\". The default\n * compares elements using strict `===` equality.\n *\n * @returns Whether the two arrays are shallowly equal.\n *\n * #### Complexity\n * Linear.\n *\n * #### Undefined Behavior\n * Modifying the length of the arrays while comparing.\n *\n * #### Example\n * ```typescript\n * import { ArrayExt } from '@lumino/algorithm';\n *\n * let d1 = [0, 3, 4, 7, 7, 9];\n * let d2 = [0, 3, 4, 7, 7, 9];\n * let d3 = [42];\n * ArrayExt.shallowEqual(d1, d2); // true\n * ArrayExt.shallowEqual(d2, d3); // false\n * ```\n */\n function shallowEqual(a, b, fn) {\n // Check for object identity first.\n if (a === b) {\n return true;\n }\n // Bail early if the lengths are different.\n if (a.length !== b.length) {\n return false;\n }\n // Compare each element for equality.\n for (let i = 0, n = a.length; i < n; ++i) {\n if (fn ? !fn(a[i], b[i]) : a[i] !== b[i]) {\n return false;\n }\n }\n // The array are shallowly equal.\n return true;\n }\n ArrayExt.shallowEqual = shallowEqual;\n /**\n * Create a slice of an array subject to an optional step.\n *\n * @param array - The array-like object of interest.\n *\n * @param options - The options for configuring the slice.\n *\n * @returns A new array with the specified values.\n *\n * @throws An exception if the slice `step` is `0`.\n *\n * #### Complexity\n * Linear.\n *\n * #### Undefined Behavior\n * A `start`, `stop`, or `step` which is non-integral.\n *\n * #### Example\n * ```typescript\n * import { ArrayExt } from '@lumino/algorithm';\n *\n * let data = [0, 3, 4, 7, 7, 9];\n * ArrayExt.slice(data); // [0, 3, 4, 7, 7, 9]\n * ArrayExt.slice(data, { start: 2 }); // [4, 7, 7, 9]\n * ArrayExt.slice(data, { start: 0, stop: 4 }); // [0, 3, 4, 7]\n * ArrayExt.slice(data, { step: 2 }); // [0, 4, 7]\n * ArrayExt.slice(data, { step: -1 }); // [9, 7, 7, 4, 3, 0]\n * ```\n */\n function slice(array, options = {}) {\n // Extract the options.\n let { start, stop, step } = options;\n // Set up the `step` value.\n if (step === undefined) {\n step = 1;\n }\n // Validate the step size.\n if (step === 0) {\n throw new Error('Slice `step` cannot be zero.');\n }\n // Look up the length of the array.\n let n = array.length;\n // Set up the `start` value.\n if (start === undefined) {\n start = step < 0 ? n - 1 : 0;\n }\n else if (start < 0) {\n start = Math.max(start + n, step < 0 ? -1 : 0);\n }\n else if (start >= n) {\n start = step < 0 ? n - 1 : n;\n }\n // Set up the `stop` value.\n if (stop === undefined) {\n stop = step < 0 ? -1 : n;\n }\n else if (stop < 0) {\n stop = Math.max(stop + n, step < 0 ? -1 : 0);\n }\n else if (stop >= n) {\n stop = step < 0 ? n - 1 : n;\n }\n // Compute the slice length.\n let length;\n if ((step < 0 && stop >= start) || (step > 0 && start >= stop)) {\n length = 0;\n }\n else if (step < 0) {\n length = Math.floor((stop - start + 1) / step + 1);\n }\n else {\n length = Math.floor((stop - start - 1) / step + 1);\n }\n // Compute the sliced result.\n let result = [];\n for (let i = 0; i < length; ++i) {\n result[i] = array[start + i * step];\n }\n // Return the result.\n return result;\n }\n ArrayExt.slice = slice;\n /**\n * Move an element in an array from one index to another.\n *\n * @param array - The mutable array-like object of interest.\n *\n * @param fromIndex - The index of the element to move. Negative\n * values are taken as an offset from the end of the array.\n *\n * @param toIndex - The target index of the element. Negative\n * values are taken as an offset from the end of the array.\n *\n * #### Complexity\n * Linear.\n *\n * #### Undefined Behavior\n * A `fromIndex` or `toIndex` which is non-integral.\n *\n * #### Example\n * ```typescript\n * import { ArrayExt } from from '@lumino/algorithm';\n *\n * let data = [0, 1, 2, 3, 4];\n * ArrayExt.move(data, 1, 2); // [0, 2, 1, 3, 4]\n * ArrayExt.move(data, 4, 2); // [0, 2, 4, 1, 3]\n * ```\n */\n function move(array, fromIndex, toIndex) {\n let n = array.length;\n if (n <= 1) {\n return;\n }\n if (fromIndex < 0) {\n fromIndex = Math.max(0, fromIndex + n);\n }\n else {\n fromIndex = Math.min(fromIndex, n - 1);\n }\n if (toIndex < 0) {\n toIndex = Math.max(0, toIndex + n);\n }\n else {\n toIndex = Math.min(toIndex, n - 1);\n }\n if (fromIndex === toIndex) {\n return;\n }\n let value = array[fromIndex];\n let d = fromIndex < toIndex ? 1 : -1;\n for (let i = fromIndex; i !== toIndex; i += d) {\n array[i] = array[i + d];\n }\n array[toIndex] = value;\n }\n ArrayExt.move = move;\n /**\n * Reverse an array in-place.\n *\n * @param array - The mutable array-like object of interest.\n *\n * @param start - The index of the first element in the range to be\n * reversed, inclusive. The default value is `0`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @param stop - The index of the last element in the range to be\n * reversed, inclusive. The default value is `-1`. Negative values\n * are taken as an offset from the end of the array.\n *\n * #### Complexity\n * Linear.\n *\n * #### Undefined Behavior\n * A `start` or `stop` index which is non-integral.\n *\n * #### Example\n * ```typescript\n * import { ArrayExt } from '@lumino/algorithm';\n *\n * let data = [0, 1, 2, 3, 4];\n * ArrayExt.reverse(data, 1, 3); // [0, 3, 2, 1, 4]\n * ArrayExt.reverse(data, 3); // [0, 3, 2, 4, 1]\n * ArrayExt.reverse(data); // [1, 4, 2, 3, 0]\n * ```\n */\n function reverse(array, start = 0, stop = -1) {\n let n = array.length;\n if (n <= 1) {\n return;\n }\n if (start < 0) {\n start = Math.max(0, start + n);\n }\n else {\n start = Math.min(start, n - 1);\n }\n if (stop < 0) {\n stop = Math.max(0, stop + n);\n }\n else {\n stop = Math.min(stop, n - 1);\n }\n while (start < stop) {\n let a = array[start];\n let b = array[stop];\n array[start++] = b;\n array[stop--] = a;\n }\n }\n ArrayExt.reverse = reverse;\n /**\n * Rotate the elements of an array in-place.\n *\n * @param array - The mutable array-like object of interest.\n *\n * @param delta - The amount of rotation to apply to the elements. A\n * positive value will rotate the elements to the left. A negative\n * value will rotate the elements to the right.\n *\n * @param start - The index of the first element in the range to be\n * rotated, inclusive. The default value is `0`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @param stop - The index of the last element in the range to be\n * rotated, inclusive. The default value is `-1`. Negative values\n * are taken as an offset from the end of the array.\n *\n * #### Complexity\n * Linear.\n *\n * #### Undefined Behavior\n * A `delta`, `start`, or `stop` which is non-integral.\n *\n * #### Example\n * ```typescript\n * import { ArrayExt } from '@lumino/algorithm';\n *\n * let data = [0, 1, 2, 3, 4];\n * ArrayExt.rotate(data, 2); // [2, 3, 4, 0, 1]\n * ArrayExt.rotate(data, -2); // [0, 1, 2, 3, 4]\n * ArrayExt.rotate(data, 10); // [0, 1, 2, 3, 4]\n * ArrayExt.rotate(data, 9); // [4, 0, 1, 2, 3]\n * ArrayExt.rotate(data, 2, 1, 3); // [4, 2, 0, 1, 3]\n * ```\n */\n function rotate(array, delta, start = 0, stop = -1) {\n let n = array.length;\n if (n <= 1) {\n return;\n }\n if (start < 0) {\n start = Math.max(0, start + n);\n }\n else {\n start = Math.min(start, n - 1);\n }\n if (stop < 0) {\n stop = Math.max(0, stop + n);\n }\n else {\n stop = Math.min(stop, n - 1);\n }\n if (start >= stop) {\n return;\n }\n let length = stop - start + 1;\n if (delta > 0) {\n delta = delta % length;\n }\n else if (delta < 0) {\n delta = ((delta % length) + length) % length;\n }\n if (delta === 0) {\n return;\n }\n let pivot = start + delta;\n reverse(array, start, pivot - 1);\n reverse(array, pivot, stop);\n reverse(array, start, stop);\n }\n ArrayExt.rotate = rotate;\n /**\n * Fill an array with a static value.\n *\n * @param array - The mutable array-like object to fill.\n *\n * @param value - The static value to use to fill the array.\n *\n * @param start - The index of the first element in the range to be\n * filled, inclusive. The default value is `0`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @param stop - The index of the last element in the range to be\n * filled, inclusive. The default value is `-1`. Negative values\n * are taken as an offset from the end of the array.\n *\n * #### Notes\n * If `stop < start` the fill will wrap at the end of the array.\n *\n * #### Complexity\n * Linear.\n *\n * #### Undefined Behavior\n * A `start` or `stop` which is non-integral.\n *\n * #### Example\n * ```typescript\n * import { ArrayExt } from '@lumino/algorithm';\n *\n * let data = ['one', 'two', 'three', 'four'];\n * ArrayExt.fill(data, 'r'); // ['r', 'r', 'r', 'r']\n * ArrayExt.fill(data, 'g', 1); // ['r', 'g', 'g', 'g']\n * ArrayExt.fill(data, 'b', 2, 3); // ['r', 'g', 'b', 'b']\n * ArrayExt.fill(data, 'z', 3, 1); // ['z', 'z', 'b', 'z']\n * ```\n */\n function fill(array, value, start = 0, stop = -1) {\n let n = array.length;\n if (n === 0) {\n return;\n }\n if (start < 0) {\n start = Math.max(0, start + n);\n }\n else {\n start = Math.min(start, n - 1);\n }\n if (stop < 0) {\n stop = Math.max(0, stop + n);\n }\n else {\n stop = Math.min(stop, n - 1);\n }\n let span;\n if (stop < start) {\n span = stop + 1 + (n - start);\n }\n else {\n span = stop - start + 1;\n }\n for (let i = 0; i < span; ++i) {\n array[(start + i) % n] = value;\n }\n }\n ArrayExt.fill = fill;\n /**\n * Insert a value into an array at a specific index.\n *\n * @param array - The array of interest.\n *\n * @param index - The index at which to insert the value. Negative\n * values are taken as an offset from the end of the array.\n *\n * @param value - The value to set at the specified index.\n *\n * #### Complexity\n * Linear.\n *\n * #### Undefined Behavior\n * An `index` which is non-integral.\n *\n * #### Example\n * ```typescript\n * import { ArrayExt } from '@lumino/algorithm';\n *\n * let data = [0, 1, 2];\n * ArrayExt.insert(data, 0, -1); // [-1, 0, 1, 2]\n * ArrayExt.insert(data, 2, 12); // [-1, 0, 12, 1, 2]\n * ArrayExt.insert(data, -1, 7); // [-1, 0, 12, 1, 7, 2]\n * ArrayExt.insert(data, 6, 19); // [-1, 0, 12, 1, 7, 2, 19]\n * ```\n */\n function insert(array, index, value) {\n let n = array.length;\n if (index < 0) {\n index = Math.max(0, index + n);\n }\n else {\n index = Math.min(index, n);\n }\n for (let i = n; i > index; --i) {\n array[i] = array[i - 1];\n }\n array[index] = value;\n }\n ArrayExt.insert = insert;\n /**\n * Remove and return a value at a specific index in an array.\n *\n * @param array - The array of interest.\n *\n * @param index - The index of the value to remove. Negative values\n * are taken as an offset from the end of the array.\n *\n * @returns The value at the specified index, or `undefined` if the\n * index is out of range.\n *\n * #### Complexity\n * Linear.\n *\n * #### Undefined Behavior\n * An `index` which is non-integral.\n *\n * #### Example\n * ```typescript\n * import { ArrayExt } from '@lumino/algorithm';\n *\n * let data = [0, 12, 23, 39, 14, 12, 75];\n * ArrayExt.removeAt(data, 2); // 23\n * ArrayExt.removeAt(data, -2); // 12\n * ArrayExt.removeAt(data, 10); // undefined;\n * ```\n */\n function removeAt(array, index) {\n let n = array.length;\n if (index < 0) {\n index += n;\n }\n if (index < 0 || index >= n) {\n return undefined;\n }\n let value = array[index];\n for (let i = index + 1; i < n; ++i) {\n array[i - 1] = array[i];\n }\n array.length = n - 1;\n return value;\n }\n ArrayExt.removeAt = removeAt;\n /**\n * Remove the first occurrence of a value from an array.\n *\n * @param array - The array of interest.\n *\n * @param value - The value to remove from the array. Values are\n * compared using strict `===` equality.\n *\n * @param start - The index of the first element in the range to be\n * searched, inclusive. The default value is `0`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @param stop - The index of the last element in the range to be\n * searched, inclusive. The default value is `-1`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @returns The index of the removed value, or `-1` if the value\n * is not contained in the array.\n *\n * #### Notes\n * If `stop < start` the search will wrap at the end of the array.\n *\n * #### Complexity\n * Linear.\n *\n * #### Example\n * ```typescript\n * import { ArrayExt } from '@lumino/algorithm';\n *\n * let data = [0, 12, 23, 39, 14, 12, 75];\n * ArrayExt.removeFirstOf(data, 12); // 1\n * ArrayExt.removeFirstOf(data, 17); // -1\n * ArrayExt.removeFirstOf(data, 39, 3); // -1\n * ArrayExt.removeFirstOf(data, 39, 3, 2); // 2\n * ```\n */\n function removeFirstOf(array, value, start = 0, stop = -1) {\n let index = firstIndexOf(array, value, start, stop);\n if (index !== -1) {\n removeAt(array, index);\n }\n return index;\n }\n ArrayExt.removeFirstOf = removeFirstOf;\n /**\n * Remove the last occurrence of a value from an array.\n *\n * @param array - The array of interest.\n *\n * @param value - The value to remove from the array. Values are\n * compared using strict `===` equality.\n *\n * @param start - The index of the first element in the range to be\n * searched, inclusive. The default value is `-1`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @param stop - The index of the last element in the range to be\n * searched, inclusive. The default value is `0`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @returns The index of the removed value, or `-1` if the value\n * is not contained in the array.\n *\n * #### Notes\n * If `start < stop` the search will wrap at the end of the array.\n *\n * #### Complexity\n * Linear.\n *\n * #### Example\n * ```typescript\n * import { ArrayExt } from '@lumino/algorithm';\n *\n * let data = [0, 12, 23, 39, 14, 12, 75];\n * ArrayExt.removeLastOf(data, 12); // 5\n * ArrayExt.removeLastOf(data, 17); // -1\n * ArrayExt.removeLastOf(data, 39, 2); // -1\n * ArrayExt.removeLastOf(data, 39, 2, 3); // 3\n * ```\n */\n function removeLastOf(array, value, start = -1, stop = 0) {\n let index = lastIndexOf(array, value, start, stop);\n if (index !== -1) {\n removeAt(array, index);\n }\n return index;\n }\n ArrayExt.removeLastOf = removeLastOf;\n /**\n * Remove all occurrences of a value from an array.\n *\n * @param array - The array of interest.\n *\n * @param value - The value to remove from the array. Values are\n * compared using strict `===` equality.\n *\n * @param start - The index of the first element in the range to be\n * searched, inclusive. The default value is `0`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @param stop - The index of the last element in the range to be\n * searched, inclusive. The default value is `-1`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @returns The number of elements removed from the array.\n *\n * #### Notes\n * If `stop < start` the search will conceptually wrap at the end of\n * the array, however the array will be traversed front-to-back.\n *\n * #### Complexity\n * Linear.\n *\n * #### Example\n * ```typescript\n * import { ArrayExt } from '@lumino/algorithm';\n *\n * let data = [14, 12, 23, 39, 14, 12, 19, 14];\n * ArrayExt.removeAllOf(data, 12); // 2\n * ArrayExt.removeAllOf(data, 17); // 0\n * ArrayExt.removeAllOf(data, 14, 1, 4); // 1\n * ```\n */\n function removeAllOf(array, value, start = 0, stop = -1) {\n let n = array.length;\n if (n === 0) {\n return 0;\n }\n if (start < 0) {\n start = Math.max(0, start + n);\n }\n else {\n start = Math.min(start, n - 1);\n }\n if (stop < 0) {\n stop = Math.max(0, stop + n);\n }\n else {\n stop = Math.min(stop, n - 1);\n }\n let count = 0;\n for (let i = 0; i < n; ++i) {\n if (start <= stop && i >= start && i <= stop && array[i] === value) {\n count++;\n }\n else if (stop < start &&\n (i <= stop || i >= start) &&\n array[i] === value) {\n count++;\n }\n else if (count > 0) {\n array[i - count] = array[i];\n }\n }\n if (count > 0) {\n array.length = n - count;\n }\n return count;\n }\n ArrayExt.removeAllOf = removeAllOf;\n /**\n * Remove the first occurrence of a value which matches a predicate.\n *\n * @param array - The array of interest.\n *\n * @param fn - The predicate function to apply to the values.\n *\n * @param start - The index of the first element in the range to be\n * searched, inclusive. The default value is `0`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @param stop - The index of the last element in the range to be\n * searched, inclusive. The default value is `-1`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @returns The removed `{ index, value }`, which will be `-1` and\n * `undefined` if the value is not contained in the array.\n *\n * #### Notes\n * If `stop < start` the search will wrap at the end of the array.\n *\n * #### Complexity\n * Linear.\n *\n * #### Example\n * ```typescript\n * import { ArrayExt } from '@lumino/algorithm';\n *\n * function isEven(value: number): boolean {\n * return value % 2 === 0;\n * }\n *\n * let data = [0, 12, 23, 39, 14, 12, 75];\n * ArrayExt.removeFirstWhere(data, isEven); // { index: 0, value: 0 }\n * ArrayExt.removeFirstWhere(data, isEven, 2); // { index: 3, value: 14 }\n * ArrayExt.removeFirstWhere(data, isEven, 4); // { index: -1, value: undefined }\n * ```\n */\n function removeFirstWhere(array, fn, start = 0, stop = -1) {\n let value;\n let index = findFirstIndex(array, fn, start, stop);\n if (index !== -1) {\n value = removeAt(array, index);\n }\n return { index, value };\n }\n ArrayExt.removeFirstWhere = removeFirstWhere;\n /**\n * Remove the last occurrence of a value which matches a predicate.\n *\n * @param array - The array of interest.\n *\n * @param fn - The predicate function to apply to the values.\n *\n * @param start - The index of the first element in the range to be\n * searched, inclusive. The default value is `-1`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @param stop - The index of the last element in the range to be\n * searched, inclusive. The default value is `0`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @returns The removed `{ index, value }`, which will be `-1` and\n * `undefined` if the value is not contained in the array.\n *\n * #### Notes\n * If `start < stop` the search will wrap at the end of the array.\n *\n * #### Complexity\n * Linear.\n *\n * #### Example\n * ```typescript\n * import { ArrayExt } from '@lumino/algorithm';\n *\n * function isEven(value: number): boolean {\n * return value % 2 === 0;\n * }\n *\n * let data = [0, 12, 23, 39, 14, 12, 75];\n * ArrayExt.removeLastWhere(data, isEven); // { index: 5, value: 12 }\n * ArrayExt.removeLastWhere(data, isEven, 2); // { index: 1, value: 12 }\n * ArrayExt.removeLastWhere(data, isEven, 2, 1); // { index: -1, value: undefined }\n * ```\n */\n function removeLastWhere(array, fn, start = -1, stop = 0) {\n let value;\n let index = findLastIndex(array, fn, start, stop);\n if (index !== -1) {\n value = removeAt(array, index);\n }\n return { index, value };\n }\n ArrayExt.removeLastWhere = removeLastWhere;\n /**\n * Remove all occurrences of values which match a predicate.\n *\n * @param array - The array of interest.\n *\n * @param fn - The predicate function to apply to the values.\n *\n * @param start - The index of the first element in the range to be\n * searched, inclusive. The default value is `0`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @param stop - The index of the last element in the range to be\n * searched, inclusive. The default value is `-1`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @returns The number of elements removed from the array.\n *\n * #### Notes\n * If `stop < start` the search will conceptually wrap at the end of\n * the array, however the array will be traversed front-to-back.\n *\n * #### Complexity\n * Linear.\n *\n * #### Example\n * ```typescript\n * import { ArrayExt } from '@lumino/algorithm';\n *\n * function isEven(value: number): boolean {\n * return value % 2 === 0;\n * }\n *\n * function isNegative(value: number): boolean {\n * return value < 0;\n * }\n *\n * let data = [0, 12, -13, -9, 23, 39, 14, -15, 12, 75];\n * ArrayExt.removeAllWhere(data, isEven); // 4\n * ArrayExt.removeAllWhere(data, isNegative, 0, 3); // 2\n * ```\n */\n function removeAllWhere(array, fn, start = 0, stop = -1) {\n let n = array.length;\n if (n === 0) {\n return 0;\n }\n if (start < 0) {\n start = Math.max(0, start + n);\n }\n else {\n start = Math.min(start, n - 1);\n }\n if (stop < 0) {\n stop = Math.max(0, stop + n);\n }\n else {\n stop = Math.min(stop, n - 1);\n }\n let count = 0;\n for (let i = 0; i < n; ++i) {\n if (start <= stop && i >= start && i <= stop && fn(array[i], i)) {\n count++;\n }\n else if (stop < start && (i <= stop || i >= start) && fn(array[i], i)) {\n count++;\n }\n else if (count > 0) {\n array[i - count] = array[i];\n }\n }\n if (count > 0) {\n array.length = n - count;\n }\n return count;\n }\n ArrayExt.removeAllWhere = removeAllWhere;\n})(ArrayExt || (ArrayExt = {}));\n/**\n * The namespace for the module implementation details.\n */\nvar Private$1;\n(function (Private) {\n /**\n * Compute the effective length of a range.\n *\n * @param start - The starting value for the range, inclusive.\n *\n * @param stop - The stopping value for the range, exclusive.\n *\n * @param step - The distance between each value.\n *\n * @returns The number of steps need to traverse the range.\n */\n function rangeLength(start, stop, step) {\n if (step === 0) {\n return Infinity;\n }\n if (start > stop && step > 0) {\n return 0;\n }\n if (start < stop && step < 0) {\n return 0;\n }\n return Math.ceil((stop - start) / step);\n }\n Private.rangeLength = rangeLength;\n})(Private$1 || (Private$1 = {}));\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * Topologically sort an iterable of edges.\n *\n * @param edges - The iterable object of edges to sort.\n * An edge is represented as a 2-tuple of `[fromNode, toNode]`.\n *\n * @returns The topologically sorted array of nodes.\n *\n * #### Notes\n * If a cycle is present in the graph, the cycle will be ignored and\n * the return value will be only approximately sorted.\n *\n * #### Example\n * ```typescript\n * import { topologicSort } from '@lumino/algorithm';\n *\n * let data = [\n * ['d', 'e'],\n * ['c', 'd'],\n * ['a', 'b'],\n * ['b', 'c']\n * ];\n *\n * topologicSort(data); // ['a', 'b', 'c', 'd', 'e']\n * ```\n */\nfunction topologicSort(edges) {\n // Setup the shared sorting state.\n let sorted = [];\n let visited = new Set();\n let graph = new Map();\n // Add the edges to the graph.\n for (const edge of edges) {\n addEdge(edge);\n }\n // Visit each node in the graph.\n for (const [k] of graph) {\n visit(k);\n }\n // Return the sorted results.\n return sorted;\n // Add an edge to the graph.\n function addEdge(edge) {\n let [fromNode, toNode] = edge;\n let children = graph.get(toNode);\n if (children) {\n children.push(fromNode);\n }\n else {\n graph.set(toNode, [fromNode]);\n }\n }\n // Recursively visit the node.\n function visit(node) {\n if (visited.has(node)) {\n return;\n }\n visited.add(node);\n let children = graph.get(node);\n if (children) {\n for (const child of children) {\n visit(child);\n }\n }\n sorted.push(node);\n }\n}\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * The namespace for string-specific algorithms.\n */\nvar StringExt;\n(function (StringExt) {\n /**\n * Find the indices of characters in a source text.\n *\n * @param source - The source text which should be searched.\n *\n * @param query - The characters to locate in the source text.\n *\n * @param start - The index to start the search.\n *\n * @returns The matched indices, or `null` if there is no match.\n *\n * #### Complexity\n * Linear on `sourceText`.\n *\n * #### Notes\n * In order for there to be a match, all of the characters in `query`\n * **must** appear in `source` in the order given by `query`.\n *\n * Characters are matched using strict `===` equality.\n */\n function findIndices(source, query, start = 0) {\n let indices = new Array(query.length);\n for (let i = 0, j = start, n = query.length; i < n; ++i, ++j) {\n j = source.indexOf(query[i], j);\n if (j === -1) {\n return null;\n }\n indices[i] = j;\n }\n return indices;\n }\n StringExt.findIndices = findIndices;\n /**\n * A string matcher which uses a sum-of-squares algorithm.\n *\n * @param source - The source text which should be searched.\n *\n * @param query - The characters to locate in the source text.\n *\n * @param start - The index to start the search.\n *\n * @returns The match result, or `null` if there is no match.\n * A lower `score` represents a stronger match.\n *\n * #### Complexity\n * Linear on `sourceText`.\n *\n * #### Notes\n * This scoring algorithm uses a sum-of-squares approach to determine\n * the score. In order for there to be a match, all of the characters\n * in `query` **must** appear in `source` in order. The index of each\n * matching character is squared and added to the score. This means\n * that early and consecutive character matches are preferred, while\n * late matches are heavily penalized.\n */\n function matchSumOfSquares(source, query, start = 0) {\n let indices = findIndices(source, query, start);\n if (!indices) {\n return null;\n }\n let score = 0;\n for (let i = 0, n = indices.length; i < n; ++i) {\n let j = indices[i] - start;\n score += j * j;\n }\n return { score, indices };\n }\n StringExt.matchSumOfSquares = matchSumOfSquares;\n /**\n * A string matcher which uses a sum-of-deltas algorithm.\n *\n * @param source - The source text which should be searched.\n *\n * @param query - The characters to locate in the source text.\n *\n * @param start - The index to start the search.\n *\n * @returns The match result, or `null` if there is no match.\n * A lower `score` represents a stronger match.\n *\n * #### Complexity\n * Linear on `sourceText`.\n *\n * #### Notes\n * This scoring algorithm uses a sum-of-deltas approach to determine\n * the score. In order for there to be a match, all of the characters\n * in `query` **must** appear in `source` in order. The delta between\n * the indices are summed to create the score. This means that groups\n * of matched characters are preferred, while fragmented matches are\n * penalized.\n */\n function matchSumOfDeltas(source, query, start = 0) {\n let indices = findIndices(source, query, start);\n if (!indices) {\n return null;\n }\n let score = 0;\n let last = start - 1;\n for (let i = 0, n = indices.length; i < n; ++i) {\n let j = indices[i];\n score += j - last - 1;\n last = j;\n }\n return { score, indices };\n }\n StringExt.matchSumOfDeltas = matchSumOfDeltas;\n /**\n * Highlight the matched characters of a source text.\n *\n * @param source - The text which should be highlighted.\n *\n * @param indices - The indices of the matched characters. They must\n * appear in increasing order and must be in bounds of the source.\n *\n * @param fn - The function to apply to the matched chunks.\n *\n * @returns An array of unmatched and highlighted chunks.\n */\n function highlight(source, indices, fn) {\n // Set up the result array.\n let result = [];\n // Set up the counter variables.\n let k = 0;\n let last = 0;\n let n = indices.length;\n // Iterator over each index.\n while (k < n) {\n // Set up the chunk indices.\n let i = indices[k];\n let j = indices[k];\n // Advance the right chunk index until it's non-contiguous.\n while (++k < n && indices[k] === j + 1) {\n j++;\n }\n // Extract the unmatched text.\n if (last < i) {\n result.push(source.slice(last, i));\n }\n // Extract and highlight the matched text.\n if (i < j + 1) {\n result.push(fn(source.slice(i, j + 1)));\n }\n // Update the last visited index.\n last = j + 1;\n }\n // Extract any remaining unmatched text.\n if (last < source.length) {\n result.push(source.slice(last));\n }\n // Return the highlighted result.\n return result;\n }\n StringExt.highlight = highlight;\n /**\n * A 3-way string comparison function.\n *\n * @param a - The first string of interest.\n *\n * @param b - The second string of interest.\n *\n * @returns `-1` if `a < b`, else `1` if `a > b`, else `0`.\n */\n function cmp(a, b) {\n return a < b ? -1 : a > b ? 1 : 0;\n }\n StringExt.cmp = cmp;\n})(StringExt || (StringExt = {}));\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * @packageDocumentation\n * @module application\n */\n/**\n * A class for creating pluggable applications.\n *\n * @typeparam T - The type of the application shell.\n *\n * #### Notes\n * The `Application` class is useful when creating large, complex\n * UI applications with the ability to be safely extended by third\n * party code via plugins.\n */\nclass Application {\n /**\n * Construct a new application.\n *\n * @param options - The options for creating the application.\n */\n constructor(options) {\n this._delegate = new PromiseDelegate();\n this._plugins = new Map();\n this._services = new Map();\n this._started = false;\n this._bubblingKeydown = false;\n // Initialize the application state.\n this.commands = new CommandRegistry();\n this.contextMenu = new ContextMenu({\n commands: this.commands,\n renderer: options.contextMenuRenderer\n });\n this.shell = options.shell;\n }\n /**\n * A promise which resolves after the application has started.\n *\n * #### Notes\n * This promise will resolve after the `start()` method is called,\n * when all the bootstrapping and shell mounting work is complete.\n */\n get started() {\n return this._delegate.promise;\n }\n /**\n * Get a plugin description.\n *\n * @param id - The ID of the plugin of interest.\n *\n * @returns The plugin description.\n */\n getPluginDescription(id) {\n var _a, _b;\n return (_b = (_a = this._plugins.get(id)) === null || _a === void 0 ? void 0 : _a.description) !== null && _b !== void 0 ? _b : '';\n }\n /**\n * Test whether a plugin is registered with the application.\n *\n * @param id - The ID of the plugin of interest.\n *\n * @returns `true` if the plugin is registered, `false` otherwise.\n */\n hasPlugin(id) {\n return this._plugins.has(id);\n }\n /**\n * Test whether a plugin is activated with the application.\n *\n * @param id - The ID of the plugin of interest.\n *\n * @returns `true` if the plugin is activated, `false` otherwise.\n */\n isPluginActivated(id) {\n var _a, _b;\n return (_b = (_a = this._plugins.get(id)) === null || _a === void 0 ? void 0 : _a.activated) !== null && _b !== void 0 ? _b : false;\n }\n /**\n * List the IDs of the plugins registered with the application.\n *\n * @returns A new array of the registered plugin IDs.\n */\n listPlugins() {\n return Array.from(this._plugins.keys());\n }\n /**\n * Register a plugin with the application.\n *\n * @param plugin - The plugin to register.\n *\n * #### Notes\n * An error will be thrown if a plugin with the same ID is already\n * registered, or if the plugin has a circular dependency.\n *\n * If the plugin provides a service which has already been provided\n * by another plugin, the new service will override the old service.\n */\n registerPlugin(plugin) {\n // Throw an error if the plugin ID is already registered.\n if (this._plugins.has(plugin.id)) {\n throw new TypeError(`Plugin '${plugin.id}' is already registered.`);\n }\n // Create the normalized plugin data.\n const data = Private.createPluginData(plugin);\n // Ensure the plugin does not cause a cyclic dependency.\n Private.ensureNoCycle(data, this._plugins, this._services);\n // Add the service token to the service map.\n if (data.provides) {\n this._services.set(data.provides, data.id);\n }\n // Add the plugin to the plugin map.\n this._plugins.set(data.id, data);\n }\n /**\n * Register multiple plugins with the application.\n *\n * @param plugins - The plugins to register.\n *\n * #### Notes\n * This calls `registerPlugin()` for each of the given plugins.\n */\n registerPlugins(plugins) {\n for (const plugin of plugins) {\n this.registerPlugin(plugin);\n }\n }\n /**\n * Deregister a plugin with the application.\n *\n * @param id - The ID of the plugin of interest.\n *\n * @param force - Whether to deregister the plugin even if it is active.\n */\n deregisterPlugin(id, force) {\n const plugin = this._plugins.get(id);\n if (!plugin) {\n return;\n }\n if (plugin.activated && !force) {\n throw new Error(`Plugin '${id}' is still active.`);\n }\n this._plugins.delete(id);\n }\n /**\n * Activate the plugin with the given ID.\n *\n * @param id - The ID of the plugin of interest.\n *\n * @returns A promise which resolves when the plugin is activated\n * or rejects with an error if it cannot be activated.\n */\n async activatePlugin(id) {\n // Reject the promise if the plugin is not registered.\n const plugin = this._plugins.get(id);\n if (!plugin) {\n throw new ReferenceError(`Plugin '${id}' is not registered.`);\n }\n // Resolve immediately if the plugin is already activated.\n if (plugin.activated) {\n return;\n }\n // Return the pending resolver promise if it exists.\n if (plugin.promise) {\n return plugin.promise;\n }\n // Resolve the required services for the plugin.\n const required = plugin.requires.map(t => this.resolveRequiredService(t));\n // Resolve the optional services for the plugin.\n const optional = plugin.optional.map(t => this.resolveOptionalService(t));\n // Setup the resolver promise for the plugin.\n plugin.promise = Promise.all([...required, ...optional])\n .then(services => plugin.activate.apply(undefined, [this, ...services]))\n .then(service => {\n plugin.service = service;\n plugin.activated = true;\n plugin.promise = null;\n })\n .catch(error => {\n plugin.promise = null;\n throw error;\n });\n // Return the pending resolver promise.\n return plugin.promise;\n }\n /**\n * Deactivate the plugin and its downstream dependents if and only if the\n * plugin and its dependents all support `deactivate`.\n *\n * @param id - The ID of the plugin of interest.\n *\n * @returns A list of IDs of downstream plugins deactivated with this one.\n */\n async deactivatePlugin(id) {\n // Reject the promise if the plugin is not registered.\n const plugin = this._plugins.get(id);\n if (!plugin) {\n throw new ReferenceError(`Plugin '${id}' is not registered.`);\n }\n // Bail early if the plugin is not activated.\n if (!plugin.activated) {\n return [];\n }\n // Check that this plugin can deactivate.\n if (!plugin.deactivate) {\n throw new TypeError(`Plugin '${id}'#deactivate() method missing`);\n }\n // Find the optimal deactivation order for plugins downstream of this one.\n const manifest = Private.findDependents(id, this._plugins, this._services);\n const downstream = manifest.map(id => this._plugins.get(id));\n // Check that all downstream plugins can deactivate.\n for (const plugin of downstream) {\n if (!plugin.deactivate) {\n throw new TypeError(`Plugin ${plugin.id}#deactivate() method missing (depends on ${id})`);\n }\n }\n // Deactivate all downstream plugins.\n for (const plugin of downstream) {\n const services = [...plugin.requires, ...plugin.optional].map(service => {\n const id = this._services.get(service);\n return id ? this._plugins.get(id).service : null;\n });\n // Await deactivation so the next plugins only receive active services.\n await plugin.deactivate(this, ...services);\n plugin.service = null;\n plugin.activated = false;\n }\n // Remove plugin ID and return manifest of deactivated plugins.\n manifest.pop();\n return manifest;\n }\n /**\n * Resolve a required service of a given type.\n *\n * @param token - The token for the service type of interest.\n *\n * @returns A promise which resolves to an instance of the requested\n * service, or rejects with an error if it cannot be resolved.\n *\n * #### Notes\n * Services are singletons. The same instance will be returned each\n * time a given service token is resolved.\n *\n * If the plugin which provides the service has not been activated,\n * resolving the service will automatically activate the plugin.\n *\n * User code will not typically call this method directly. Instead,\n * the required services for the user's plugins will be resolved\n * automatically when the plugin is activated.\n */\n async resolveRequiredService(token) {\n // Reject the promise if there is no provider for the type.\n const id = this._services.get(token);\n if (!id) {\n throw new TypeError(`No provider for: ${token.name}.`);\n }\n // Activate the plugin if necessary.\n const plugin = this._plugins.get(id);\n if (!plugin.activated) {\n await this.activatePlugin(id);\n }\n return plugin.service;\n }\n /**\n * Resolve an optional service of a given type.\n *\n * @param token - The token for the service type of interest.\n *\n * @returns A promise which resolves to an instance of the requested\n * service, or `null` if it cannot be resolved.\n *\n * #### Notes\n * Services are singletons. The same instance will be returned each\n * time a given service token is resolved.\n *\n * If the plugin which provides the service has not been activated,\n * resolving the service will automatically activate the plugin.\n *\n * User code will not typically call this method directly. Instead,\n * the optional services for the user's plugins will be resolved\n * automatically when the plugin is activated.\n */\n async resolveOptionalService(token) {\n // Resolve with `null` if there is no provider for the type.\n const id = this._services.get(token);\n if (!id) {\n return null;\n }\n // Activate the plugin if necessary.\n const plugin = this._plugins.get(id);\n if (!plugin.activated) {\n try {\n await this.activatePlugin(id);\n }\n catch (reason) {\n console.error(reason);\n return null;\n }\n }\n return plugin.service;\n }\n /**\n * Start the application.\n *\n * @param options - The options for starting the application.\n *\n * @returns A promise which resolves when all bootstrapping work\n * is complete and the shell is mounted to the DOM.\n *\n * #### Notes\n * This should be called once by the application creator after all\n * initial plugins have been registered.\n *\n * If a plugin fails to the load, the error will be logged and the\n * other valid plugins will continue to be loaded.\n *\n * Bootstrapping the application consists of the following steps:\n * 1. Activate the startup plugins\n * 2. Wait for those plugins to activate\n * 3. Attach the shell widget to the DOM\n * 4. Add the application event listeners\n */\n start(options = {}) {\n // Return immediately if the application is already started.\n if (this._started) {\n return this._delegate.promise;\n }\n // Mark the application as started;\n this._started = true;\n this._bubblingKeydown = options.bubblingKeydown || false;\n // Parse the host ID for attaching the shell.\n const hostID = options.hostID || '';\n // Collect the ids of the startup plugins.\n const startups = Private.collectStartupPlugins(this._plugins, options);\n // Generate the activation promises.\n const promises = startups.map(id => {\n return this.activatePlugin(id).catch(error => {\n console.error(`Plugin '${id}' failed to activate.`);\n console.error(error);\n });\n });\n // Wait for the plugins to activate, then finalize startup.\n Promise.all(promises).then(() => {\n this.attachShell(hostID);\n this.addEventListeners();\n this._delegate.resolve();\n });\n // Return the pending delegate promise.\n return this._delegate.promise;\n }\n /**\n * The list of all the deferred plugins.\n */\n get deferredPlugins() {\n return Array.from(this._plugins)\n .filter(([id, plugin]) => plugin.autoStart === 'defer')\n .map(([id, plugin]) => id);\n }\n /**\n * Activate all the deferred plugins.\n *\n * @returns A promise which will resolve when each plugin is activated\n * or rejects with an error if one cannot be activated.\n */\n async activateDeferredPlugins() {\n const promises = this.deferredPlugins\n .filter(pluginId => this._plugins.get(pluginId).autoStart)\n .map(pluginId => {\n return this.activatePlugin(pluginId);\n });\n await Promise.all(promises);\n }\n /**\n * Handle the DOM events for the application.\n *\n * @param event - The DOM event sent to the application.\n *\n * #### Notes\n * This method implements the DOM `EventListener` interface and is\n * called in response to events registered for the application. It\n * should not be called directly by user code.\n */\n handleEvent(event) {\n switch (event.type) {\n case 'resize':\n this.evtResize(event);\n break;\n case 'keydown':\n this.evtKeydown(event);\n break;\n case 'contextmenu':\n this.evtContextMenu(event);\n break;\n }\n }\n /**\n * Attach the application shell to the DOM.\n *\n * @param id - The ID of the host node for the shell, or `''`.\n *\n * #### Notes\n * If the ID is not provided, the document body will be the host.\n *\n * A subclass may reimplement this method as needed.\n */\n attachShell(id) {\n Widget.attach(this.shell, (id && document.getElementById(id)) || document.body);\n }\n /**\n * Add the application event listeners.\n *\n * #### Notes\n * The default implementation of this method adds listeners for\n * `'keydown'` and `'resize'` events.\n *\n * A subclass may reimplement this method as needed.\n */\n addEventListeners() {\n document.addEventListener('contextmenu', this);\n document.addEventListener('keydown', this, !this._bubblingKeydown);\n window.addEventListener('resize', this);\n }\n /**\n * A method invoked on a document `'keydown'` event.\n *\n * #### Notes\n * The default implementation of this method invokes the key down\n * processing method of the application command registry.\n *\n * A subclass may reimplement this method as needed.\n */\n evtKeydown(event) {\n this.commands.processKeydownEvent(event);\n }\n /**\n * A method invoked on a document `'contextmenu'` event.\n *\n * #### Notes\n * The default implementation of this method opens the application\n * `contextMenu` at the current mouse position.\n *\n * If the application context menu has no matching content *or* if\n * the shift key is pressed, the default browser context menu will\n * be opened instead.\n *\n * A subclass may reimplement this method as needed.\n */\n evtContextMenu(event) {\n if (event.shiftKey) {\n return;\n }\n if (this.contextMenu.open(event)) {\n event.preventDefault();\n event.stopPropagation();\n }\n }\n /**\n * A method invoked on a window `'resize'` event.\n *\n * #### Notes\n * The default implementation of this method updates the shell.\n *\n * A subclass may reimplement this method as needed.\n */\n evtResize(event) {\n this.shell.update();\n }\n}\n/**\n * The namespace for the module implementation details.\n */\nvar Private;\n(function (Private) {\n /**\n * Create a normalized plugin data object for the given plugin.\n */\n function createPluginData(plugin) {\n var _a, _b, _c, _d;\n return {\n id: plugin.id,\n description: (_a = plugin.description) !== null && _a !== void 0 ? _a : '',\n service: null,\n promise: null,\n activated: false,\n activate: plugin.activate,\n deactivate: (_b = plugin.deactivate) !== null && _b !== void 0 ? _b : null,\n provides: (_c = plugin.provides) !== null && _c !== void 0 ? _c : null,\n autoStart: (_d = plugin.autoStart) !== null && _d !== void 0 ? _d : false,\n requires: plugin.requires ? plugin.requires.slice() : [],\n optional: plugin.optional ? plugin.optional.slice() : []\n };\n }\n Private.createPluginData = createPluginData;\n /**\n * Ensure no cycle is present in the plugin resolution graph.\n *\n * If a cycle is detected, an error will be thrown.\n */\n function ensureNoCycle(plugin, plugins, services) {\n const dependencies = [...plugin.requires, ...plugin.optional];\n const visit = (token) => {\n if (token === plugin.provides) {\n return true;\n }\n const id = services.get(token);\n if (!id) {\n return false;\n }\n const visited = plugins.get(id);\n const dependencies = [...visited.requires, ...visited.optional];\n if (dependencies.length === 0) {\n return false;\n }\n trace.push(id);\n if (dependencies.some(visit)) {\n return true;\n }\n trace.pop();\n return false;\n };\n // Bail early if there cannot be a cycle.\n if (!plugin.provides || dependencies.length === 0) {\n return;\n }\n // Setup a stack to trace service resolution.\n const trace = [plugin.id];\n // Throw an exception if a cycle is present.\n if (dependencies.some(visit)) {\n throw new ReferenceError(`Cycle detected: ${trace.join(' -> ')}.`);\n }\n }\n Private.ensureNoCycle = ensureNoCycle;\n /**\n * Find dependents in deactivation order.\n *\n * @param id - The ID of the plugin of interest.\n *\n * @param plugins - The map containing all plugins.\n *\n * @param services - The map containing all services.\n *\n * @returns A list of dependent plugin IDs in order of deactivation\n *\n * #### Notes\n * The final item of the returned list is always the plugin of interest.\n */\n function findDependents(id, plugins, services) {\n const edges = new Array();\n const add = (id) => {\n const plugin = plugins.get(id);\n // FIXME In the case of missing optional dependencies, we may consider\n // deactivating and reactivating the plugin without the missing service.\n const dependencies = [...plugin.requires, ...plugin.optional];\n edges.push(...dependencies.reduce((acc, dep) => {\n const service = services.get(dep);\n if (service) {\n // An edge is oriented from dependent to provider.\n acc.push([id, service]);\n }\n return acc;\n }, []));\n };\n for (const id of plugins.keys()) {\n add(id);\n }\n // Filter edges\n // - Get all packages that dependent on the package to be deactivated\n const newEdges = edges.filter(edge => edge[1] === id);\n let oldSize = 0;\n while (newEdges.length > oldSize) {\n const previousSize = newEdges.length;\n // Get all packages that dependent on packages that will be deactivated\n const packagesOfInterest = new Set(newEdges.map(edge => edge[0]));\n for (const poi of packagesOfInterest) {\n edges\n .filter(edge => edge[1] === poi)\n .forEach(edge => {\n // We check it is not already included to deal with circular dependencies\n if (!newEdges.includes(edge)) {\n newEdges.push(edge);\n }\n });\n }\n oldSize = previousSize;\n }\n const sorted = topologicSort(newEdges);\n const index = sorted.findIndex(candidate => candidate === id);\n if (index === -1) {\n return [id];\n }\n return sorted.slice(0, index + 1);\n }\n Private.findDependents = findDependents;\n /**\n * Collect the IDs of the plugins to activate on startup.\n */\n function collectStartupPlugins(plugins, options) {\n // Create a set to hold the plugin IDs.\n const collection = new Set();\n // Collect the auto-start (non deferred) plugins.\n for (const id of plugins.keys()) {\n if (plugins.get(id).autoStart === true) {\n collection.add(id);\n }\n }\n // Add the startup plugins.\n if (options.startPlugins) {\n for (const id of options.startPlugins) {\n collection.add(id);\n }\n }\n // Remove the ignored plugins.\n if (options.ignorePlugins) {\n for (const id of options.ignorePlugins) {\n collection.delete(id);\n }\n }\n // Return the collected startup plugins.\n return Array.from(collection);\n }\n Private.collectStartupPlugins = collectStartupPlugins;\n})(Private || (Private = {}));\n\nexport { Application };\n//# sourceMappingURL=index.es6.js.map\n","/**\n * A simple router.\n */\nexport class Router {\n constructor() {\n this._routes = [];\n }\n /**\n * Add a new GET route\n *\n * @param pattern The pattern to match\n * @param callback The function to call on pattern match\n *\n */\n get(pattern, callback) {\n this._add('GET', pattern, callback);\n }\n /**\n * Add a new PUT route\n *\n * @param pattern The pattern to match\n * @param callback The function to call on pattern match\n *\n */\n put(pattern, callback) {\n this._add('PUT', pattern, callback);\n }\n /**\n * Add a new POST route\n *\n * @param pattern The pattern to match\n * @param callback The function to call on pattern match\n *\n */\n post(pattern, callback) {\n this._add('POST', pattern, callback);\n }\n /**\n * Add a new PATCH route\n *\n * @param pattern The pattern to match\n * @param callback The function to call on pattern match\n *\n */\n patch(pattern, callback) {\n this._add('PATCH', pattern, callback);\n }\n /**\n * Add a new DELETE route\n *\n * @param pattern The pattern to match\n * @param callback The function to call on pattern match\n *\n */\n delete(pattern, callback) {\n this._add('DELETE', pattern, callback);\n }\n /**\n * Route a request.\n *\n * @param req The request to route.\n */\n async route(req) {\n const url = new URL(req.url);\n const { method } = req;\n const { pathname } = url;\n for (const r of this._routes) {\n if (r.method !== method) {\n continue;\n }\n const match = pathname.match(r.pattern);\n if (!match) {\n continue;\n }\n const matches = match.slice(1);\n let body;\n if (r.method === 'PATCH' || r.method === 'PUT' || r.method === 'POST') {\n try {\n body = JSON.parse(await req.text());\n }\n catch {\n body = undefined;\n }\n }\n return r.callback.call(null, {\n pathname,\n body,\n query: Object.fromEntries(url.searchParams),\n }, ...matches);\n }\n throw new Error('Cannot route ' + req.method + ' ' + req.url);\n }\n /**\n * Add a new route.\n *\n * @param method The method\n * @param pattern The pattern\n * @param callback The callback\n */\n _add(method, pattern, callback) {\n if (typeof pattern === 'string') {\n pattern = new RegExp(pattern);\n }\n this._routes.push({\n method,\n pattern,\n callback,\n });\n }\n}\n//# sourceMappingURL=router.js.map","// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\nimport { ServerConnection, ServiceManager } from '@jupyterlab/services';\nimport { Application } from '@lumino/application';\nimport { Stream } from '@lumino/signaling';\nimport { WebSocket } from 'mock-socket';\nimport { Router } from './router';\n/**\n * Mock the Event Manager for now\n */\nclass MockEventManager {\n constructor(options) {\n this._stream = new Stream(this);\n this._serverSettings = options.serverSettings;\n }\n async emit(event) {\n // no-op\n }\n dispose() {\n // no-op\n }\n get isDisposed() {\n return true;\n }\n get stream() {\n return this._stream;\n }\n get serverSettings() {\n return this._serverSettings;\n }\n}\n/**\n * Server is the main application class. It is instantiated once and shared.\n */\nexport class JupyterLiteServer extends Application {\n /**\n * Construct a new JupyterLite object.\n *\n * @param options The instantiation options for a JupyterLiteServer application.\n */\n constructor(options) {\n var _a;\n super(options);\n /**\n * The name of the application.\n */\n this.name = 'JupyterLite Server';\n /**\n * A namespace/prefix plugins may use to denote their provenance.\n */\n this.namespace = this.name;\n /**\n * The version of the application.\n */\n this.version = 'unknown';\n this._router = new Router();\n const serverSettings = {\n ...ServerConnection.makeSettings(),\n WebSocket,\n fetch: (_a = this.fetch.bind(this)) !== null && _a !== void 0 ? _a : undefined,\n };\n this._serviceManager = new ServiceManager({\n standby: 'never',\n serverSettings,\n events: new MockEventManager({ serverSettings }),\n });\n }\n /**\n * Get the underlying `Router` instance.\n */\n get router() {\n return this._router;\n }\n /**\n * Get the underlying lite service manager for this app.\n */\n get serviceManager() {\n return this._serviceManager;\n }\n /**\n * Handle an incoming request from the client.\n *\n * @param req The incoming request\n * @param init The optional init request\n */\n async fetch(req, init) {\n if (!(req instanceof Request)) {\n throw Error('Request info is not a Request');\n }\n return this._router.route(req);\n }\n /**\n * Attach the application shell to the DOM.\n *\n * @param id - The id of the host node for the shell, or `''`.\n *\n * #### Notes\n * For this server application there is no shell to attach\n */\n attachShell(id) {\n // no-op\n }\n /**\n * A method invoked on a window `'resize'` event.\n *\n * #### Notes\n * For this server application there is no shell to update\n */\n evtResize(event) {\n // no-op\n }\n /**\n * Register plugins from a plugin module.\n *\n * @param mod - The plugin module to register.\n */\n registerPluginModule(mod) {\n let data = mod.default;\n // Handle commonjs exports.\n if (!Object.prototype.hasOwnProperty.call(mod, '__esModule')) {\n data = mod;\n }\n if (!Array.isArray(data)) {\n data = [data];\n }\n data.forEach((item) => {\n try {\n this.registerPlugin(item);\n }\n catch (error) {\n console.error(error);\n }\n });\n }\n /**\n * Register the plugins from multiple plugin modules.\n *\n * @param mods - The plugin modules to register.\n */\n registerPluginModules(mods) {\n mods.forEach((mod) => {\n this.registerPluginModule(mod);\n });\n }\n}\n//# sourceMappingURL=app.js.map","import { PromiseDelegate } from '@lumino/coreutils';\nimport { Signal } from '@lumino/signaling';\nimport { PageConfig, URLExt } from '@jupyterlab/coreutils';\nimport { WORKER_NAME } from './tokens';\nexport class ServiceWorkerManager {\n constructor(options) {\n var _a;\n this._registration = null;\n this._registrationChanged = new Signal(this);\n this._ready = new PromiseDelegate();\n const workerUrl = (_a = options === null || options === void 0 ? void 0 : options.workerUrl) !== null && _a !== void 0 ? _a : URLExt.join(PageConfig.getBaseUrl(), WORKER_NAME);\n void this.initialize(workerUrl).catch(console.warn);\n }\n /**\n * A signal emitted when the registration changes.\n */\n get registrationChanged() {\n return this._registrationChanged;\n }\n /**\n * Whether the ServiceWorker is enabled or not.\n */\n get enabled() {\n return this._registration !== null;\n }\n get ready() {\n return this._ready.promise;\n }\n async initialize(workerUrl) {\n const { serviceWorker } = navigator;\n let registration = null;\n if (!serviceWorker) {\n console.warn('ServiceWorkers not supported in this browser');\n }\n else if (serviceWorker.controller) {\n registration =\n (await serviceWorker.getRegistration(serviceWorker.controller.scriptURL)) ||\n null;\n console.info('JupyterLite ServiceWorker was already registered');\n }\n if (!registration && serviceWorker) {\n try {\n console.info('Registering new JupyterLite ServiceWorker', workerUrl);\n registration = await serviceWorker.register(workerUrl);\n console.info('JupyterLite ServiceWorker was sucessfully registered');\n }\n catch (err) {\n console.warn(err);\n console.warn(`JupyterLite ServiceWorker registration unexpectedly failed: ${err}`);\n }\n }\n this.setRegistration(registration);\n if (!registration) {\n this._ready.reject(void 0);\n }\n else {\n this._ready.resolve(void 0);\n }\n }\n setRegistration(registration) {\n this._registration = registration;\n this._registrationChanged.emit(this._registration);\n }\n}\n//# sourceMappingURL=service-manager.js.map","\"use strict\";\n// eslint-disable-next-line @typescript-eslint/triple-slash-reference\n/// \n/**\n * The name of the cache\n */\nconst CACHE = 'precache';\n/**\n * Communication channel for drive access\n */\nconst broadcast = new BroadcastChannel('/api/drive.v1');\n/**\n * Install event listeners\n */\nself.addEventListener('install', onInstall);\nself.addEventListener('activate', onActivate);\nself.addEventListener('fetch', onFetch);\n// Event handlers\n/**\n * Handle installation with the cache\n */\nfunction onInstall(event) {\n void self.skipWaiting();\n event.waitUntil(cacheAll());\n}\n/**\n * Handle activation.\n */\nfunction onActivate(event) {\n event.waitUntil(self.clients.claim());\n}\n/**\n * Handle fetching a single resource.\n */\nasync function onFetch(event) {\n const { request } = event;\n const url = new URL(event.request.url);\n let responsePromise = null;\n if (shouldBroadcast(url)) {\n responsePromise = broadcastOne(request);\n }\n else if (!shouldDrop(request, url)) {\n responsePromise = maybeFromCache(event);\n }\n if (responsePromise) {\n event.respondWith(responsePromise);\n }\n}\n// utilities\n/** Get a cached response, and update cache. */\nasync function maybeFromCache(event) {\n const { request } = event;\n let response = await fromCache(request);\n if (response) {\n event.waitUntil(refetch(request));\n }\n else {\n response = await fetch(request);\n event.waitUntil(updateCache(request, response.clone()));\n }\n return response;\n}\n/**\n * Restore a response from the cache based on the request.\n */\nasync function fromCache(request) {\n const cache = await openCache();\n const response = await cache.match(request);\n if (!response || response.status === 404) {\n return null;\n }\n return response;\n}\n/**\n * This is where we call the server to get the newest version of the\n * file to use the next time we show view\n */\nasync function refetch(request) {\n const fromServer = await fetch(request);\n await updateCache(request, fromServer);\n return fromServer;\n}\n/**\n * Whether a given URL should be broadcast\n */\nfunction shouldBroadcast(url) {\n return url.origin === location.origin && url.pathname.includes('/api/drive');\n}\n/**\n * Whether the fallback behavior should be used\n */\nfunction shouldDrop(request, url) {\n return (request.method !== 'GET' ||\n url.origin.match(/^http/) === null ||\n url.pathname.includes('/api/'));\n}\n/**\n * Forward request to main using the broadcast channel\n */\nasync function broadcastOne(request) {\n const promise = new Promise((resolve) => {\n broadcast.onmessage = (event) => {\n resolve(new Response(JSON.stringify(event.data)));\n };\n });\n const message = await request.json();\n // Mark message as being for broadcast.ts\n // This makes sure we won't get problems with messages\n // across tabs with multiple notebook tabs open\n message.receiver = 'broadcast.ts';\n broadcast.postMessage(message);\n return await promise;\n}\nasync function openCache() {\n return await caches.open(CACHE);\n}\n/**\n * Cache a request/response pair.\n */\nasync function updateCache(request, response) {\n const cache = await openCache();\n return cache.put(request, response);\n}\n/**\n * Add all to the cache\n *\n * this is where we should (try to) add all relevant files\n */\nasync function cacheAll() {\n const cache = await openCache();\n return await cache.addAll([]);\n}\n//# sourceMappingURL=service-worker.js.map","import { Token } from '@lumino/coreutils';\nimport SW_URL from './service-worker?text';\n/**\n * The token for the ServiceWorker.\n */\nexport const IServiceWorkerManager = new Token('@jupyterlite/server-extension:IServiceWorkerManager');\nexport const WORKER_NAME = `${SW_URL}`.split('/').slice(-1)[0];\n//# sourceMappingURL=tokens.js.map","// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * The namespace for array-specific algorithms.\n */\nvar ArrayExt;\n(function (ArrayExt) {\n /**\n * Find the index of the first occurrence of a value in an array.\n *\n * @param array - The array-like object to search.\n *\n * @param value - The value to locate in the array. Values are\n * compared using strict `===` equality.\n *\n * @param start - The index of the first element in the range to be\n * searched, inclusive. The default value is `0`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @param stop - The index of the last element in the range to be\n * searched, inclusive. The default value is `-1`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @returns The index of the first occurrence of the value, or `-1`\n * if the value is not found.\n *\n * #### Notes\n * If `stop < start` the search will wrap at the end of the array.\n *\n * #### Complexity\n * Linear.\n *\n * #### Undefined Behavior\n * A `start` or `stop` which is non-integral.\n *\n * #### Example\n * ```typescript\n * import { ArrayExt } from '@lumino/algorithm';\n *\n * let data = ['one', 'two', 'three', 'four', 'one'];\n * ArrayExt.firstIndexOf(data, 'red'); // -1\n * ArrayExt.firstIndexOf(data, 'one'); // 0\n * ArrayExt.firstIndexOf(data, 'one', 1); // 4\n * ArrayExt.firstIndexOf(data, 'two', 2); // -1\n * ArrayExt.firstIndexOf(data, 'two', 2, 1); // 1\n * ```\n */\n function firstIndexOf(array, value, start = 0, stop = -1) {\n let n = array.length;\n if (n === 0) {\n return -1;\n }\n if (start < 0) {\n start = Math.max(0, start + n);\n }\n else {\n start = Math.min(start, n - 1);\n }\n if (stop < 0) {\n stop = Math.max(0, stop + n);\n }\n else {\n stop = Math.min(stop, n - 1);\n }\n let span;\n if (stop < start) {\n span = stop + 1 + (n - start);\n }\n else {\n span = stop - start + 1;\n }\n for (let i = 0; i < span; ++i) {\n let j = (start + i) % n;\n if (array[j] === value) {\n return j;\n }\n }\n return -1;\n }\n ArrayExt.firstIndexOf = firstIndexOf;\n /**\n * Find the index of the last occurrence of a value in an array.\n *\n * @param array - The array-like object to search.\n *\n * @param value - The value to locate in the array. Values are\n * compared using strict `===` equality.\n *\n * @param start - The index of the first element in the range to be\n * searched, inclusive. The default value is `-1`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @param stop - The index of the last element in the range to be\n * searched, inclusive. The default value is `0`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @returns The index of the last occurrence of the value, or `-1`\n * if the value is not found.\n *\n * #### Notes\n * If `start < stop` the search will wrap at the front of the array.\n *\n * #### Complexity\n * Linear.\n *\n * #### Undefined Behavior\n * A `start` or `stop` which is non-integral.\n *\n * #### Example\n * ```typescript\n * import { ArrayExt } from '@lumino/algorithm';\n *\n * let data = ['one', 'two', 'three', 'four', 'one'];\n * ArrayExt.lastIndexOf(data, 'red'); // -1\n * ArrayExt.lastIndexOf(data, 'one'); // 4\n * ArrayExt.lastIndexOf(data, 'one', 1); // 0\n * ArrayExt.lastIndexOf(data, 'two', 0); // -1\n * ArrayExt.lastIndexOf(data, 'two', 0, 1); // 1\n * ```\n */\n function lastIndexOf(array, value, start = -1, stop = 0) {\n let n = array.length;\n if (n === 0) {\n return -1;\n }\n if (start < 0) {\n start = Math.max(0, start + n);\n }\n else {\n start = Math.min(start, n - 1);\n }\n if (stop < 0) {\n stop = Math.max(0, stop + n);\n }\n else {\n stop = Math.min(stop, n - 1);\n }\n let span;\n if (start < stop) {\n span = start + 1 + (n - stop);\n }\n else {\n span = start - stop + 1;\n }\n for (let i = 0; i < span; ++i) {\n let j = (start - i + n) % n;\n if (array[j] === value) {\n return j;\n }\n }\n return -1;\n }\n ArrayExt.lastIndexOf = lastIndexOf;\n /**\n * Find the index of the first value which matches a predicate.\n *\n * @param array - The array-like object to search.\n *\n * @param fn - The predicate function to apply to the values.\n *\n * @param start - The index of the first element in the range to be\n * searched, inclusive. The default value is `0`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @param stop - The index of the last element in the range to be\n * searched, inclusive. The default value is `-1`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @returns The index of the first matching value, or `-1` if no\n * matching value is found.\n *\n * #### Notes\n * If `stop < start` the search will wrap at the end of the array.\n *\n * #### Complexity\n * Linear.\n *\n * #### Undefined Behavior\n * A `start` or `stop` which is non-integral.\n *\n * Modifying the length of the array while searching.\n *\n * #### Example\n * ```typescript\n * import { ArrayExt } from '@lumino/algorithm';\n *\n * function isEven(value: number): boolean {\n * return value % 2 === 0;\n * }\n *\n * let data = [1, 2, 3, 4, 3, 2, 1];\n * ArrayExt.findFirstIndex(data, isEven); // 1\n * ArrayExt.findFirstIndex(data, isEven, 4); // 5\n * ArrayExt.findFirstIndex(data, isEven, 6); // -1\n * ArrayExt.findFirstIndex(data, isEven, 6, 5); // 1\n * ```\n */\n function findFirstIndex(array, fn, start = 0, stop = -1) {\n let n = array.length;\n if (n === 0) {\n return -1;\n }\n if (start < 0) {\n start = Math.max(0, start + n);\n }\n else {\n start = Math.min(start, n - 1);\n }\n if (stop < 0) {\n stop = Math.max(0, stop + n);\n }\n else {\n stop = Math.min(stop, n - 1);\n }\n let span;\n if (stop < start) {\n span = stop + 1 + (n - start);\n }\n else {\n span = stop - start + 1;\n }\n for (let i = 0; i < span; ++i) {\n let j = (start + i) % n;\n if (fn(array[j], j)) {\n return j;\n }\n }\n return -1;\n }\n ArrayExt.findFirstIndex = findFirstIndex;\n /**\n * Find the index of the last value which matches a predicate.\n *\n * @param object - The array-like object to search.\n *\n * @param fn - The predicate function to apply to the values.\n *\n * @param start - The index of the first element in the range to be\n * searched, inclusive. The default value is `-1`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @param stop - The index of the last element in the range to be\n * searched, inclusive. The default value is `0`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @returns The index of the last matching value, or `-1` if no\n * matching value is found.\n *\n * #### Notes\n * If `start < stop` the search will wrap at the front of the array.\n *\n * #### Complexity\n * Linear.\n *\n * #### Undefined Behavior\n * A `start` or `stop` which is non-integral.\n *\n * Modifying the length of the array while searching.\n *\n * #### Example\n * ```typescript\n * import { ArrayExt } from '@lumino/algorithm';\n *\n * function isEven(value: number): boolean {\n * return value % 2 === 0;\n * }\n *\n * let data = [1, 2, 3, 4, 3, 2, 1];\n * ArrayExt.findLastIndex(data, isEven); // 5\n * ArrayExt.findLastIndex(data, isEven, 4); // 3\n * ArrayExt.findLastIndex(data, isEven, 0); // -1\n * ArrayExt.findLastIndex(data, isEven, 0, 1); // 5\n * ```\n */\n function findLastIndex(array, fn, start = -1, stop = 0) {\n let n = array.length;\n if (n === 0) {\n return -1;\n }\n if (start < 0) {\n start = Math.max(0, start + n);\n }\n else {\n start = Math.min(start, n - 1);\n }\n if (stop < 0) {\n stop = Math.max(0, stop + n);\n }\n else {\n stop = Math.min(stop, n - 1);\n }\n let d;\n if (start < stop) {\n d = start + 1 + (n - stop);\n }\n else {\n d = start - stop + 1;\n }\n for (let i = 0; i < d; ++i) {\n let j = (start - i + n) % n;\n if (fn(array[j], j)) {\n return j;\n }\n }\n return -1;\n }\n ArrayExt.findLastIndex = findLastIndex;\n /**\n * Find the first value which matches a predicate.\n *\n * @param array - The array-like object to search.\n *\n * @param fn - The predicate function to apply to the values.\n *\n * @param start - The index of the first element in the range to be\n * searched, inclusive. The default value is `0`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @param stop - The index of the last element in the range to be\n * searched, inclusive. The default value is `-1`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @returns The first matching value, or `undefined` if no matching\n * value is found.\n *\n * #### Notes\n * If `stop < start` the search will wrap at the end of the array.\n *\n * #### Complexity\n * Linear.\n *\n * #### Undefined Behavior\n * A `start` or `stop` which is non-integral.\n *\n * Modifying the length of the array while searching.\n *\n * #### Example\n * ```typescript\n * import { ArrayExt } from '@lumino/algorithm';\n *\n * function isEven(value: number): boolean {\n * return value % 2 === 0;\n * }\n *\n * let data = [1, 2, 3, 4, 3, 2, 1];\n * ArrayExt.findFirstValue(data, isEven); // 2\n * ArrayExt.findFirstValue(data, isEven, 2); // 4\n * ArrayExt.findFirstValue(data, isEven, 6); // undefined\n * ArrayExt.findFirstValue(data, isEven, 6, 5); // 2\n * ```\n */\n function findFirstValue(array, fn, start = 0, stop = -1) {\n let index = findFirstIndex(array, fn, start, stop);\n return index !== -1 ? array[index] : undefined;\n }\n ArrayExt.findFirstValue = findFirstValue;\n /**\n * Find the last value which matches a predicate.\n *\n * @param object - The array-like object to search.\n *\n * @param fn - The predicate function to apply to the values.\n *\n * @param start - The index of the first element in the range to be\n * searched, inclusive. The default value is `-1`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @param stop - The index of the last element in the range to be\n * searched, inclusive. The default value is `0`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @returns The last matching value, or `undefined` if no matching\n * value is found.\n *\n * #### Notes\n * If `start < stop` the search will wrap at the front of the array.\n *\n * #### Complexity\n * Linear.\n *\n * #### Undefined Behavior\n * A `start` or `stop` which is non-integral.\n *\n * Modifying the length of the array while searching.\n *\n * #### Example\n * ```typescript\n * import { ArrayExt } from '@lumino/algorithm';\n *\n * function isEven(value: number): boolean {\n * return value % 2 === 0;\n * }\n *\n * let data = [1, 2, 3, 4, 3, 2, 1];\n * ArrayExt.findLastValue(data, isEven); // 2\n * ArrayExt.findLastValue(data, isEven, 4); // 4\n * ArrayExt.findLastValue(data, isEven, 0); // undefined\n * ArrayExt.findLastValue(data, isEven, 0, 1); // 2\n * ```\n */\n function findLastValue(array, fn, start = -1, stop = 0) {\n let index = findLastIndex(array, fn, start, stop);\n return index !== -1 ? array[index] : undefined;\n }\n ArrayExt.findLastValue = findLastValue;\n /**\n * Find the index of the first element which compares `>=` to a value.\n *\n * @param array - The sorted array-like object to search.\n *\n * @param value - The value to locate in the array.\n *\n * @param fn - The 3-way comparison function to apply to the values.\n * It should return `< 0` if an element is less than a value, `0` if\n * an element is equal to a value, or `> 0` if an element is greater\n * than a value.\n *\n * @param start - The index of the first element in the range to be\n * searched, inclusive. The default value is `0`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @param stop - The index of the last element in the range to be\n * searched, inclusive. The default value is `-1`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @returns The index of the first element which compares `>=` to the\n * value, or `length` if there is no such element. If the computed\n * index for `stop` is less than `start`, then the computed index\n * for `start` is returned.\n *\n * #### Notes\n * The array must already be sorted in ascending order according to\n * the comparison function.\n *\n * #### Complexity\n * Logarithmic.\n *\n * #### Undefined Behavior\n * Searching a range which is not sorted in ascending order.\n *\n * A `start` or `stop` which is non-integral.\n *\n * Modifying the length of the array while searching.\n *\n * #### Example\n * ```typescript\n * import { ArrayExt } from '@lumino/algorithm';\n *\n * function numberCmp(a: number, b: number): number {\n * return a - b;\n * }\n *\n * let data = [0, 3, 4, 7, 7, 9];\n * ArrayExt.lowerBound(data, 0, numberCmp); // 0\n * ArrayExt.lowerBound(data, 6, numberCmp); // 3\n * ArrayExt.lowerBound(data, 7, numberCmp); // 3\n * ArrayExt.lowerBound(data, -1, numberCmp); // 0\n * ArrayExt.lowerBound(data, 10, numberCmp); // 6\n * ```\n */\n function lowerBound(array, value, fn, start = 0, stop = -1) {\n let n = array.length;\n if (n === 0) {\n return 0;\n }\n if (start < 0) {\n start = Math.max(0, start + n);\n }\n else {\n start = Math.min(start, n - 1);\n }\n if (stop < 0) {\n stop = Math.max(0, stop + n);\n }\n else {\n stop = Math.min(stop, n - 1);\n }\n let begin = start;\n let span = stop - start + 1;\n while (span > 0) {\n let half = span >> 1;\n let middle = begin + half;\n if (fn(array[middle], value) < 0) {\n begin = middle + 1;\n span -= half + 1;\n }\n else {\n span = half;\n }\n }\n return begin;\n }\n ArrayExt.lowerBound = lowerBound;\n /**\n * Find the index of the first element which compares `>` than a value.\n *\n * @param array - The sorted array-like object to search.\n *\n * @param value - The value to locate in the array.\n *\n * @param fn - The 3-way comparison function to apply to the values.\n * It should return `< 0` if an element is less than a value, `0` if\n * an element is equal to a value, or `> 0` if an element is greater\n * than a value.\n *\n * @param start - The index of the first element in the range to be\n * searched, inclusive. The default value is `0`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @param stop - The index of the last element in the range to be\n * searched, inclusive. The default value is `-1`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @returns The index of the first element which compares `>` than the\n * value, or `length` if there is no such element. If the computed\n * index for `stop` is less than `start`, then the computed index\n * for `start` is returned.\n *\n * #### Notes\n * The array must already be sorted in ascending order according to\n * the comparison function.\n *\n * #### Complexity\n * Logarithmic.\n *\n * #### Undefined Behavior\n * Searching a range which is not sorted in ascending order.\n *\n * A `start` or `stop` which is non-integral.\n *\n * Modifying the length of the array while searching.\n *\n * #### Example\n * ```typescript\n * import { ArrayExt } from '@lumino/algorithm';\n *\n * function numberCmp(a: number, b: number): number {\n * return a - b;\n * }\n *\n * let data = [0, 3, 4, 7, 7, 9];\n * ArrayExt.upperBound(data, 0, numberCmp); // 1\n * ArrayExt.upperBound(data, 6, numberCmp); // 3\n * ArrayExt.upperBound(data, 7, numberCmp); // 5\n * ArrayExt.upperBound(data, -1, numberCmp); // 0\n * ArrayExt.upperBound(data, 10, numberCmp); // 6\n * ```\n */\n function upperBound(array, value, fn, start = 0, stop = -1) {\n let n = array.length;\n if (n === 0) {\n return 0;\n }\n if (start < 0) {\n start = Math.max(0, start + n);\n }\n else {\n start = Math.min(start, n - 1);\n }\n if (stop < 0) {\n stop = Math.max(0, stop + n);\n }\n else {\n stop = Math.min(stop, n - 1);\n }\n let begin = start;\n let span = stop - start + 1;\n while (span > 0) {\n let half = span >> 1;\n let middle = begin + half;\n if (fn(array[middle], value) > 0) {\n span = half;\n }\n else {\n begin = middle + 1;\n span -= half + 1;\n }\n }\n return begin;\n }\n ArrayExt.upperBound = upperBound;\n /**\n * Test whether two arrays are shallowly equal.\n *\n * @param a - The first array-like object to compare.\n *\n * @param b - The second array-like object to compare.\n *\n * @param fn - The comparison function to apply to the elements. It\n * should return `true` if the elements are \"equal\". The default\n * compares elements using strict `===` equality.\n *\n * @returns Whether the two arrays are shallowly equal.\n *\n * #### Complexity\n * Linear.\n *\n * #### Undefined Behavior\n * Modifying the length of the arrays while comparing.\n *\n * #### Example\n * ```typescript\n * import { ArrayExt } from '@lumino/algorithm';\n *\n * let d1 = [0, 3, 4, 7, 7, 9];\n * let d2 = [0, 3, 4, 7, 7, 9];\n * let d3 = [42];\n * ArrayExt.shallowEqual(d1, d2); // true\n * ArrayExt.shallowEqual(d2, d3); // false\n * ```\n */\n function shallowEqual(a, b, fn) {\n // Check for object identity first.\n if (a === b) {\n return true;\n }\n // Bail early if the lengths are different.\n if (a.length !== b.length) {\n return false;\n }\n // Compare each element for equality.\n for (let i = 0, n = a.length; i < n; ++i) {\n if (fn ? !fn(a[i], b[i]) : a[i] !== b[i]) {\n return false;\n }\n }\n // The array are shallowly equal.\n return true;\n }\n ArrayExt.shallowEqual = shallowEqual;\n /**\n * Create a slice of an array subject to an optional step.\n *\n * @param array - The array-like object of interest.\n *\n * @param options - The options for configuring the slice.\n *\n * @returns A new array with the specified values.\n *\n * @throws An exception if the slice `step` is `0`.\n *\n * #### Complexity\n * Linear.\n *\n * #### Undefined Behavior\n * A `start`, `stop`, or `step` which is non-integral.\n *\n * #### Example\n * ```typescript\n * import { ArrayExt } from '@lumino/algorithm';\n *\n * let data = [0, 3, 4, 7, 7, 9];\n * ArrayExt.slice(data); // [0, 3, 4, 7, 7, 9]\n * ArrayExt.slice(data, { start: 2 }); // [4, 7, 7, 9]\n * ArrayExt.slice(data, { start: 0, stop: 4 }); // [0, 3, 4, 7]\n * ArrayExt.slice(data, { step: 2 }); // [0, 4, 7]\n * ArrayExt.slice(data, { step: -1 }); // [9, 7, 7, 4, 3, 0]\n * ```\n */\n function slice(array, options = {}) {\n // Extract the options.\n let { start, stop, step } = options;\n // Set up the `step` value.\n if (step === undefined) {\n step = 1;\n }\n // Validate the step size.\n if (step === 0) {\n throw new Error('Slice `step` cannot be zero.');\n }\n // Look up the length of the array.\n let n = array.length;\n // Set up the `start` value.\n if (start === undefined) {\n start = step < 0 ? n - 1 : 0;\n }\n else if (start < 0) {\n start = Math.max(start + n, step < 0 ? -1 : 0);\n }\n else if (start >= n) {\n start = step < 0 ? n - 1 : n;\n }\n // Set up the `stop` value.\n if (stop === undefined) {\n stop = step < 0 ? -1 : n;\n }\n else if (stop < 0) {\n stop = Math.max(stop + n, step < 0 ? -1 : 0);\n }\n else if (stop >= n) {\n stop = step < 0 ? n - 1 : n;\n }\n // Compute the slice length.\n let length;\n if ((step < 0 && stop >= start) || (step > 0 && start >= stop)) {\n length = 0;\n }\n else if (step < 0) {\n length = Math.floor((stop - start + 1) / step + 1);\n }\n else {\n length = Math.floor((stop - start - 1) / step + 1);\n }\n // Compute the sliced result.\n let result = [];\n for (let i = 0; i < length; ++i) {\n result[i] = array[start + i * step];\n }\n // Return the result.\n return result;\n }\n ArrayExt.slice = slice;\n /**\n * Move an element in an array from one index to another.\n *\n * @param array - The mutable array-like object of interest.\n *\n * @param fromIndex - The index of the element to move. Negative\n * values are taken as an offset from the end of the array.\n *\n * @param toIndex - The target index of the element. Negative\n * values are taken as an offset from the end of the array.\n *\n * #### Complexity\n * Linear.\n *\n * #### Undefined Behavior\n * A `fromIndex` or `toIndex` which is non-integral.\n *\n * #### Example\n * ```typescript\n * import { ArrayExt } from from '@lumino/algorithm';\n *\n * let data = [0, 1, 2, 3, 4];\n * ArrayExt.move(data, 1, 2); // [0, 2, 1, 3, 4]\n * ArrayExt.move(data, 4, 2); // [0, 2, 4, 1, 3]\n * ```\n */\n function move(array, fromIndex, toIndex) {\n let n = array.length;\n if (n <= 1) {\n return;\n }\n if (fromIndex < 0) {\n fromIndex = Math.max(0, fromIndex + n);\n }\n else {\n fromIndex = Math.min(fromIndex, n - 1);\n }\n if (toIndex < 0) {\n toIndex = Math.max(0, toIndex + n);\n }\n else {\n toIndex = Math.min(toIndex, n - 1);\n }\n if (fromIndex === toIndex) {\n return;\n }\n let value = array[fromIndex];\n let d = fromIndex < toIndex ? 1 : -1;\n for (let i = fromIndex; i !== toIndex; i += d) {\n array[i] = array[i + d];\n }\n array[toIndex] = value;\n }\n ArrayExt.move = move;\n /**\n * Reverse an array in-place.\n *\n * @param array - The mutable array-like object of interest.\n *\n * @param start - The index of the first element in the range to be\n * reversed, inclusive. The default value is `0`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @param stop - The index of the last element in the range to be\n * reversed, inclusive. The default value is `-1`. Negative values\n * are taken as an offset from the end of the array.\n *\n * #### Complexity\n * Linear.\n *\n * #### Undefined Behavior\n * A `start` or `stop` index which is non-integral.\n *\n * #### Example\n * ```typescript\n * import { ArrayExt } from '@lumino/algorithm';\n *\n * let data = [0, 1, 2, 3, 4];\n * ArrayExt.reverse(data, 1, 3); // [0, 3, 2, 1, 4]\n * ArrayExt.reverse(data, 3); // [0, 3, 2, 4, 1]\n * ArrayExt.reverse(data); // [1, 4, 2, 3, 0]\n * ```\n */\n function reverse(array, start = 0, stop = -1) {\n let n = array.length;\n if (n <= 1) {\n return;\n }\n if (start < 0) {\n start = Math.max(0, start + n);\n }\n else {\n start = Math.min(start, n - 1);\n }\n if (stop < 0) {\n stop = Math.max(0, stop + n);\n }\n else {\n stop = Math.min(stop, n - 1);\n }\n while (start < stop) {\n let a = array[start];\n let b = array[stop];\n array[start++] = b;\n array[stop--] = a;\n }\n }\n ArrayExt.reverse = reverse;\n /**\n * Rotate the elements of an array in-place.\n *\n * @param array - The mutable array-like object of interest.\n *\n * @param delta - The amount of rotation to apply to the elements. A\n * positive value will rotate the elements to the left. A negative\n * value will rotate the elements to the right.\n *\n * @param start - The index of the first element in the range to be\n * rotated, inclusive. The default value is `0`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @param stop - The index of the last element in the range to be\n * rotated, inclusive. The default value is `-1`. Negative values\n * are taken as an offset from the end of the array.\n *\n * #### Complexity\n * Linear.\n *\n * #### Undefined Behavior\n * A `delta`, `start`, or `stop` which is non-integral.\n *\n * #### Example\n * ```typescript\n * import { ArrayExt } from '@lumino/algorithm';\n *\n * let data = [0, 1, 2, 3, 4];\n * ArrayExt.rotate(data, 2); // [2, 3, 4, 0, 1]\n * ArrayExt.rotate(data, -2); // [0, 1, 2, 3, 4]\n * ArrayExt.rotate(data, 10); // [0, 1, 2, 3, 4]\n * ArrayExt.rotate(data, 9); // [4, 0, 1, 2, 3]\n * ArrayExt.rotate(data, 2, 1, 3); // [4, 2, 0, 1, 3]\n * ```\n */\n function rotate(array, delta, start = 0, stop = -1) {\n let n = array.length;\n if (n <= 1) {\n return;\n }\n if (start < 0) {\n start = Math.max(0, start + n);\n }\n else {\n start = Math.min(start, n - 1);\n }\n if (stop < 0) {\n stop = Math.max(0, stop + n);\n }\n else {\n stop = Math.min(stop, n - 1);\n }\n if (start >= stop) {\n return;\n }\n let length = stop - start + 1;\n if (delta > 0) {\n delta = delta % length;\n }\n else if (delta < 0) {\n delta = ((delta % length) + length) % length;\n }\n if (delta === 0) {\n return;\n }\n let pivot = start + delta;\n reverse(array, start, pivot - 1);\n reverse(array, pivot, stop);\n reverse(array, start, stop);\n }\n ArrayExt.rotate = rotate;\n /**\n * Fill an array with a static value.\n *\n * @param array - The mutable array-like object to fill.\n *\n * @param value - The static value to use to fill the array.\n *\n * @param start - The index of the first element in the range to be\n * filled, inclusive. The default value is `0`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @param stop - The index of the last element in the range to be\n * filled, inclusive. The default value is `-1`. Negative values\n * are taken as an offset from the end of the array.\n *\n * #### Notes\n * If `stop < start` the fill will wrap at the end of the array.\n *\n * #### Complexity\n * Linear.\n *\n * #### Undefined Behavior\n * A `start` or `stop` which is non-integral.\n *\n * #### Example\n * ```typescript\n * import { ArrayExt } from '@lumino/algorithm';\n *\n * let data = ['one', 'two', 'three', 'four'];\n * ArrayExt.fill(data, 'r'); // ['r', 'r', 'r', 'r']\n * ArrayExt.fill(data, 'g', 1); // ['r', 'g', 'g', 'g']\n * ArrayExt.fill(data, 'b', 2, 3); // ['r', 'g', 'b', 'b']\n * ArrayExt.fill(data, 'z', 3, 1); // ['z', 'z', 'b', 'z']\n * ```\n */\n function fill(array, value, start = 0, stop = -1) {\n let n = array.length;\n if (n === 0) {\n return;\n }\n if (start < 0) {\n start = Math.max(0, start + n);\n }\n else {\n start = Math.min(start, n - 1);\n }\n if (stop < 0) {\n stop = Math.max(0, stop + n);\n }\n else {\n stop = Math.min(stop, n - 1);\n }\n let span;\n if (stop < start) {\n span = stop + 1 + (n - start);\n }\n else {\n span = stop - start + 1;\n }\n for (let i = 0; i < span; ++i) {\n array[(start + i) % n] = value;\n }\n }\n ArrayExt.fill = fill;\n /**\n * Insert a value into an array at a specific index.\n *\n * @param array - The array of interest.\n *\n * @param index - The index at which to insert the value. Negative\n * values are taken as an offset from the end of the array.\n *\n * @param value - The value to set at the specified index.\n *\n * #### Complexity\n * Linear.\n *\n * #### Undefined Behavior\n * An `index` which is non-integral.\n *\n * #### Example\n * ```typescript\n * import { ArrayExt } from '@lumino/algorithm';\n *\n * let data = [0, 1, 2];\n * ArrayExt.insert(data, 0, -1); // [-1, 0, 1, 2]\n * ArrayExt.insert(data, 2, 12); // [-1, 0, 12, 1, 2]\n * ArrayExt.insert(data, -1, 7); // [-1, 0, 12, 1, 7, 2]\n * ArrayExt.insert(data, 6, 19); // [-1, 0, 12, 1, 7, 2, 19]\n * ```\n */\n function insert(array, index, value) {\n let n = array.length;\n if (index < 0) {\n index = Math.max(0, index + n);\n }\n else {\n index = Math.min(index, n);\n }\n for (let i = n; i > index; --i) {\n array[i] = array[i - 1];\n }\n array[index] = value;\n }\n ArrayExt.insert = insert;\n /**\n * Remove and return a value at a specific index in an array.\n *\n * @param array - The array of interest.\n *\n * @param index - The index of the value to remove. Negative values\n * are taken as an offset from the end of the array.\n *\n * @returns The value at the specified index, or `undefined` if the\n * index is out of range.\n *\n * #### Complexity\n * Linear.\n *\n * #### Undefined Behavior\n * An `index` which is non-integral.\n *\n * #### Example\n * ```typescript\n * import { ArrayExt } from '@lumino/algorithm';\n *\n * let data = [0, 12, 23, 39, 14, 12, 75];\n * ArrayExt.removeAt(data, 2); // 23\n * ArrayExt.removeAt(data, -2); // 12\n * ArrayExt.removeAt(data, 10); // undefined;\n * ```\n */\n function removeAt(array, index) {\n let n = array.length;\n if (index < 0) {\n index += n;\n }\n if (index < 0 || index >= n) {\n return undefined;\n }\n let value = array[index];\n for (let i = index + 1; i < n; ++i) {\n array[i - 1] = array[i];\n }\n array.length = n - 1;\n return value;\n }\n ArrayExt.removeAt = removeAt;\n /**\n * Remove the first occurrence of a value from an array.\n *\n * @param array - The array of interest.\n *\n * @param value - The value to remove from the array. Values are\n * compared using strict `===` equality.\n *\n * @param start - The index of the first element in the range to be\n * searched, inclusive. The default value is `0`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @param stop - The index of the last element in the range to be\n * searched, inclusive. The default value is `-1`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @returns The index of the removed value, or `-1` if the value\n * is not contained in the array.\n *\n * #### Notes\n * If `stop < start` the search will wrap at the end of the array.\n *\n * #### Complexity\n * Linear.\n *\n * #### Example\n * ```typescript\n * import { ArrayExt } from '@lumino/algorithm';\n *\n * let data = [0, 12, 23, 39, 14, 12, 75];\n * ArrayExt.removeFirstOf(data, 12); // 1\n * ArrayExt.removeFirstOf(data, 17); // -1\n * ArrayExt.removeFirstOf(data, 39, 3); // -1\n * ArrayExt.removeFirstOf(data, 39, 3, 2); // 2\n * ```\n */\n function removeFirstOf(array, value, start = 0, stop = -1) {\n let index = firstIndexOf(array, value, start, stop);\n if (index !== -1) {\n removeAt(array, index);\n }\n return index;\n }\n ArrayExt.removeFirstOf = removeFirstOf;\n /**\n * Remove the last occurrence of a value from an array.\n *\n * @param array - The array of interest.\n *\n * @param value - The value to remove from the array. Values are\n * compared using strict `===` equality.\n *\n * @param start - The index of the first element in the range to be\n * searched, inclusive. The default value is `-1`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @param stop - The index of the last element in the range to be\n * searched, inclusive. The default value is `0`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @returns The index of the removed value, or `-1` if the value\n * is not contained in the array.\n *\n * #### Notes\n * If `start < stop` the search will wrap at the end of the array.\n *\n * #### Complexity\n * Linear.\n *\n * #### Example\n * ```typescript\n * import { ArrayExt } from '@lumino/algorithm';\n *\n * let data = [0, 12, 23, 39, 14, 12, 75];\n * ArrayExt.removeLastOf(data, 12); // 5\n * ArrayExt.removeLastOf(data, 17); // -1\n * ArrayExt.removeLastOf(data, 39, 2); // -1\n * ArrayExt.removeLastOf(data, 39, 2, 3); // 3\n * ```\n */\n function removeLastOf(array, value, start = -1, stop = 0) {\n let index = lastIndexOf(array, value, start, stop);\n if (index !== -1) {\n removeAt(array, index);\n }\n return index;\n }\n ArrayExt.removeLastOf = removeLastOf;\n /**\n * Remove all occurrences of a value from an array.\n *\n * @param array - The array of interest.\n *\n * @param value - The value to remove from the array. Values are\n * compared using strict `===` equality.\n *\n * @param start - The index of the first element in the range to be\n * searched, inclusive. The default value is `0`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @param stop - The index of the last element in the range to be\n * searched, inclusive. The default value is `-1`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @returns The number of elements removed from the array.\n *\n * #### Notes\n * If `stop < start` the search will conceptually wrap at the end of\n * the array, however the array will be traversed front-to-back.\n *\n * #### Complexity\n * Linear.\n *\n * #### Example\n * ```typescript\n * import { ArrayExt } from '@lumino/algorithm';\n *\n * let data = [14, 12, 23, 39, 14, 12, 19, 14];\n * ArrayExt.removeAllOf(data, 12); // 2\n * ArrayExt.removeAllOf(data, 17); // 0\n * ArrayExt.removeAllOf(data, 14, 1, 4); // 1\n * ```\n */\n function removeAllOf(array, value, start = 0, stop = -1) {\n let n = array.length;\n if (n === 0) {\n return 0;\n }\n if (start < 0) {\n start = Math.max(0, start + n);\n }\n else {\n start = Math.min(start, n - 1);\n }\n if (stop < 0) {\n stop = Math.max(0, stop + n);\n }\n else {\n stop = Math.min(stop, n - 1);\n }\n let count = 0;\n for (let i = 0; i < n; ++i) {\n if (start <= stop && i >= start && i <= stop && array[i] === value) {\n count++;\n }\n else if (stop < start &&\n (i <= stop || i >= start) &&\n array[i] === value) {\n count++;\n }\n else if (count > 0) {\n array[i - count] = array[i];\n }\n }\n if (count > 0) {\n array.length = n - count;\n }\n return count;\n }\n ArrayExt.removeAllOf = removeAllOf;\n /**\n * Remove the first occurrence of a value which matches a predicate.\n *\n * @param array - The array of interest.\n *\n * @param fn - The predicate function to apply to the values.\n *\n * @param start - The index of the first element in the range to be\n * searched, inclusive. The default value is `0`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @param stop - The index of the last element in the range to be\n * searched, inclusive. The default value is `-1`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @returns The removed `{ index, value }`, which will be `-1` and\n * `undefined` if the value is not contained in the array.\n *\n * #### Notes\n * If `stop < start` the search will wrap at the end of the array.\n *\n * #### Complexity\n * Linear.\n *\n * #### Example\n * ```typescript\n * import { ArrayExt } from '@lumino/algorithm';\n *\n * function isEven(value: number): boolean {\n * return value % 2 === 0;\n * }\n *\n * let data = [0, 12, 23, 39, 14, 12, 75];\n * ArrayExt.removeFirstWhere(data, isEven); // { index: 0, value: 0 }\n * ArrayExt.removeFirstWhere(data, isEven, 2); // { index: 3, value: 14 }\n * ArrayExt.removeFirstWhere(data, isEven, 4); // { index: -1, value: undefined }\n * ```\n */\n function removeFirstWhere(array, fn, start = 0, stop = -1) {\n let value;\n let index = findFirstIndex(array, fn, start, stop);\n if (index !== -1) {\n value = removeAt(array, index);\n }\n return { index, value };\n }\n ArrayExt.removeFirstWhere = removeFirstWhere;\n /**\n * Remove the last occurrence of a value which matches a predicate.\n *\n * @param array - The array of interest.\n *\n * @param fn - The predicate function to apply to the values.\n *\n * @param start - The index of the first element in the range to be\n * searched, inclusive. The default value is `-1`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @param stop - The index of the last element in the range to be\n * searched, inclusive. The default value is `0`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @returns The removed `{ index, value }`, which will be `-1` and\n * `undefined` if the value is not contained in the array.\n *\n * #### Notes\n * If `start < stop` the search will wrap at the end of the array.\n *\n * #### Complexity\n * Linear.\n *\n * #### Example\n * ```typescript\n * import { ArrayExt } from '@lumino/algorithm';\n *\n * function isEven(value: number): boolean {\n * return value % 2 === 0;\n * }\n *\n * let data = [0, 12, 23, 39, 14, 12, 75];\n * ArrayExt.removeLastWhere(data, isEven); // { index: 5, value: 12 }\n * ArrayExt.removeLastWhere(data, isEven, 2); // { index: 1, value: 12 }\n * ArrayExt.removeLastWhere(data, isEven, 2, 1); // { index: -1, value: undefined }\n * ```\n */\n function removeLastWhere(array, fn, start = -1, stop = 0) {\n let value;\n let index = findLastIndex(array, fn, start, stop);\n if (index !== -1) {\n value = removeAt(array, index);\n }\n return { index, value };\n }\n ArrayExt.removeLastWhere = removeLastWhere;\n /**\n * Remove all occurrences of values which match a predicate.\n *\n * @param array - The array of interest.\n *\n * @param fn - The predicate function to apply to the values.\n *\n * @param start - The index of the first element in the range to be\n * searched, inclusive. The default value is `0`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @param stop - The index of the last element in the range to be\n * searched, inclusive. The default value is `-1`. Negative values\n * are taken as an offset from the end of the array.\n *\n * @returns The number of elements removed from the array.\n *\n * #### Notes\n * If `stop < start` the search will conceptually wrap at the end of\n * the array, however the array will be traversed front-to-back.\n *\n * #### Complexity\n * Linear.\n *\n * #### Example\n * ```typescript\n * import { ArrayExt } from '@lumino/algorithm';\n *\n * function isEven(value: number): boolean {\n * return value % 2 === 0;\n * }\n *\n * function isNegative(value: number): boolean {\n * return value < 0;\n * }\n *\n * let data = [0, 12, -13, -9, 23, 39, 14, -15, 12, 75];\n * ArrayExt.removeAllWhere(data, isEven); // 4\n * ArrayExt.removeAllWhere(data, isNegative, 0, 3); // 2\n * ```\n */\n function removeAllWhere(array, fn, start = 0, stop = -1) {\n let n = array.length;\n if (n === 0) {\n return 0;\n }\n if (start < 0) {\n start = Math.max(0, start + n);\n }\n else {\n start = Math.min(start, n - 1);\n }\n if (stop < 0) {\n stop = Math.max(0, stop + n);\n }\n else {\n stop = Math.min(stop, n - 1);\n }\n let count = 0;\n for (let i = 0; i < n; ++i) {\n if (start <= stop && i >= start && i <= stop && fn(array[i], i)) {\n count++;\n }\n else if (stop < start && (i <= stop || i >= start) && fn(array[i], i)) {\n count++;\n }\n else if (count > 0) {\n array[i - count] = array[i];\n }\n }\n if (count > 0) {\n array.length = n - count;\n }\n return count;\n }\n ArrayExt.removeAllWhere = removeAllWhere;\n})(ArrayExt || (ArrayExt = {}));\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * Chain together several iterables.\n *\n * @deprecated\n *\n * @param objects - The iterable objects of interest.\n *\n * @returns An iterator which yields the values of the iterables\n * in the order in which they are supplied.\n *\n * #### Example\n * ```typescript\n * import { chain } from '@lumino/algorithm';\n *\n * let data1 = [1, 2, 3];\n * let data2 = [4, 5, 6];\n *\n * let stream = chain(data1, data2);\n *\n * Array.from(stream); // [1, 2, 3, 4, 5, 6]\n * ```\n */\nfunction* chain(...objects) {\n for (const object of objects) {\n yield* object;\n }\n}\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * Create an empty iterator.\n *\n * @returns A new iterator which yields nothing.\n *\n * #### Example\n * ```typescript\n * import { empty } from '@lumino/algorithm';\n *\n * let stream = empty();\n *\n * Array.from(stream); // []\n * ```\n */\n// eslint-disable-next-line require-yield\nfunction* empty() {\n return;\n}\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * Enumerate an iterable object.\n *\n * @param object - The iterable object of interest.\n *\n * @param start - The starting enum value. The default is `0`.\n *\n * @returns An iterator which yields the enumerated values.\n *\n * #### Example\n * ```typescript\n * import { enumerate } from '@lumino/algorithm';\n *\n * let data = ['foo', 'bar', 'baz'];\n *\n * let stream = enumerate(data, 1);\n *\n * Array.from(stream); // [[1, 'foo'], [2, 'bar'], [3, 'baz']]\n * ```\n */\nfunction* enumerate(object, start = 0) {\n for (const value of object) {\n yield [start++, value];\n }\n}\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * Filter an iterable for values which pass a test.\n *\n * @param object - The iterable object of interest.\n *\n * @param fn - The predicate function to invoke for each value.\n *\n * @returns An iterator which yields the values which pass the test.\n *\n * #### Example\n * ```typescript\n * import { filter } from '@lumino/algorithm';\n *\n * let data = [1, 2, 3, 4, 5, 6];\n *\n * let stream = filter(data, value => value % 2 === 0);\n *\n * Array.from(stream); // [2, 4, 6]\n * ```\n */\nfunction* filter(object, fn) {\n let index = 0;\n for (const value of object) {\n if (fn(value, index++)) {\n yield value;\n }\n }\n}\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * Find the first value in an iterable which matches a predicate.\n *\n * @param object - The iterable object to search.\n *\n * @param fn - The predicate function to apply to the values.\n *\n * @returns The first matching value, or `undefined` if no matching\n * value is found.\n *\n * #### Complexity\n * Linear.\n *\n * #### Example\n * ```typescript\n * import { find } from '@lumino/algorithm';\n *\n * interface IAnimal { species: string, name: string };\n *\n * function isCat(value: IAnimal): boolean {\n * return value.species === 'cat';\n * }\n *\n * let data: IAnimal[] = [\n * { species: 'dog', name: 'spot' },\n * { species: 'cat', name: 'fluffy' },\n * { species: 'alligator', name: 'pocho' }\n * ];\n *\n * find(data, isCat).name; // 'fluffy'\n * ```\n */\nfunction find(object, fn) {\n let index = 0;\n for (const value of object) {\n if (fn(value, index++)) {\n return value;\n }\n }\n return undefined;\n}\n/**\n * Find the index of the first value which matches a predicate.\n *\n * @param object - The iterable object to search.\n *\n * @param fn - The predicate function to apply to the values.\n *\n * @returns The index of the first matching value, or `-1` if no\n * matching value is found.\n *\n * #### Complexity\n * Linear.\n *\n * #### Example\n * ```typescript\n * import { findIndex } from '@lumino/algorithm';\n *\n * interface IAnimal { species: string, name: string };\n *\n * function isCat(value: IAnimal): boolean {\n * return value.species === 'cat';\n * }\n *\n * let data: IAnimal[] = [\n * { species: 'dog', name: 'spot' },\n * { species: 'cat', name: 'fluffy' },\n * { species: 'alligator', name: 'pocho' }\n * ];\n *\n * findIndex(data, isCat); // 1\n * ```\n */\nfunction findIndex(object, fn) {\n let index = 0;\n for (const value of object) {\n if (fn(value, index++)) {\n return index - 1;\n }\n }\n return -1;\n}\n/**\n * Find the minimum value in an iterable.\n *\n * @param object - The iterable object to search.\n *\n * @param fn - The 3-way comparison function to apply to the values.\n * It should return `< 0` if the first value is less than the second.\n * `0` if the values are equivalent, or `> 0` if the first value is\n * greater than the second.\n *\n * @returns The minimum value in the iterable. If multiple values are\n * equivalent to the minimum, the left-most value is returned. If\n * the iterable is empty, this returns `undefined`.\n *\n * #### Complexity\n * Linear.\n *\n * #### Example\n * ```typescript\n * import { min } from '@lumino/algorithm';\n *\n * function numberCmp(a: number, b: number): number {\n * return a - b;\n * }\n *\n * min([7, 4, 0, 3, 9, 4], numberCmp); // 0\n * ```\n */\nfunction min(object, fn) {\n let result = undefined;\n for (const value of object) {\n if (result === undefined) {\n result = value;\n continue;\n }\n if (fn(value, result) < 0) {\n result = value;\n }\n }\n return result;\n}\n/**\n * Find the maximum value in an iterable.\n *\n * @param object - The iterable object to search.\n *\n * @param fn - The 3-way comparison function to apply to the values.\n * It should return `< 0` if the first value is less than the second.\n * `0` if the values are equivalent, or `> 0` if the first value is\n * greater than the second.\n *\n * @returns The maximum value in the iterable. If multiple values are\n * equivalent to the maximum, the left-most value is returned. If\n * the iterable is empty, this returns `undefined`.\n *\n * #### Complexity\n * Linear.\n *\n * #### Example\n * ```typescript\n * import { max } from '@lumino/algorithm';\n *\n * function numberCmp(a: number, b: number): number {\n * return a - b;\n * }\n *\n * max([7, 4, 0, 3, 9, 4], numberCmp); // 9\n * ```\n */\nfunction max(object, fn) {\n let result = undefined;\n for (const value of object) {\n if (result === undefined) {\n result = value;\n continue;\n }\n if (fn(value, result) > 0) {\n result = value;\n }\n }\n return result;\n}\n/**\n * Find the minimum and maximum values in an iterable.\n *\n * @param object - The iterable object to search.\n *\n * @param fn - The 3-way comparison function to apply to the values.\n * It should return `< 0` if the first value is less than the second.\n * `0` if the values are equivalent, or `> 0` if the first value is\n * greater than the second.\n *\n * @returns A 2-tuple of the `[min, max]` values in the iterable. If\n * multiple values are equivalent, the left-most values are returned.\n * If the iterable is empty, this returns `undefined`.\n *\n * #### Complexity\n * Linear.\n *\n * #### Example\n * ```typescript\n * import { minmax } from '@lumino/algorithm';\n *\n * function numberCmp(a: number, b: number): number {\n * return a - b;\n * }\n *\n * minmax([7, 4, 0, 3, 9, 4], numberCmp); // [0, 9]\n * ```\n */\nfunction minmax(object, fn) {\n let empty = true;\n let vmin;\n let vmax;\n for (const value of object) {\n if (empty) {\n vmin = value;\n vmax = value;\n empty = false;\n }\n else if (fn(value, vmin) < 0) {\n vmin = value;\n }\n else if (fn(value, vmax) > 0) {\n vmax = value;\n }\n }\n return empty ? undefined : [vmin, vmax];\n}\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * Create an array from an iterable of values.\n *\n * @deprecated\n *\n * @param object - The iterable object of interest.\n *\n * @returns A new array of values from the given object.\n *\n * #### Example\n * ```typescript\n * import { toArray } from '@lumino/algorithm';\n *\n * let stream = [1, 2, 3, 4, 5, 6][Symbol.iterator]();\n *\n * toArray(stream); // [1, 2, 3, 4, 5, 6];\n * ```\n */\nfunction toArray(object) {\n return Array.from(object);\n}\n/**\n * Create an object from an iterable of key/value pairs.\n *\n * @param object - The iterable object of interest.\n *\n * @returns A new object mapping keys to values.\n *\n * #### Example\n * ```typescript\n * import { toObject } from '@lumino/algorithm';\n *\n * let data: [string, number][] = [['one', 1], ['two', 2], ['three', 3]];\n *\n * toObject(data); // { one: 1, two: 2, three: 3 }\n * ```\n */\nfunction toObject(object) {\n const result = {};\n for (const [key, value] of object) {\n result[key] = value;\n }\n return result;\n}\n/**\n * Invoke a function for each value in an iterable.\n *\n * @deprecated\n *\n * @param object - The iterable object of interest.\n *\n * @param fn - The callback function to invoke for each value.\n *\n * #### Notes\n * Iteration can be terminated early by returning `false` from the\n * callback function.\n *\n * #### Complexity\n * Linear.\n *\n * #### Example\n * ```typescript\n * import { each } from '@lumino/algorithm';\n *\n * let data = [5, 7, 0, -2, 9];\n *\n * each(data, value => { console.log(value); });\n * ```\n */\nfunction each(object, fn) {\n let index = 0;\n for (const value of object) {\n if (false === fn(value, index++)) {\n return;\n }\n }\n}\n/**\n * Test whether all values in an iterable satisfy a predicate.\n *\n * @param object - The iterable object of interest.\n *\n * @param fn - The predicate function to invoke for each value.\n *\n * @returns `true` if all values pass the test, `false` otherwise.\n *\n * #### Notes\n * Iteration terminates on the first `false` predicate result.\n *\n * #### Complexity\n * Linear.\n *\n * #### Example\n * ```typescript\n * import { every } from '@lumino/algorithm';\n *\n * let data = [5, 7, 1];\n *\n * every(data, value => value % 2 === 0); // false\n * every(data, value => value % 2 === 1); // true\n * ```\n */\nfunction every(object, fn) {\n let index = 0;\n for (const value of object) {\n if (false === fn(value, index++)) {\n return false;\n }\n }\n return true;\n}\n/**\n * Test whether any value in an iterable satisfies a predicate.\n *\n * @param object - The iterable object of interest.\n *\n * @param fn - The predicate function to invoke for each value.\n *\n * @returns `true` if any value passes the test, `false` otherwise.\n *\n * #### Notes\n * Iteration terminates on the first `true` predicate result.\n *\n * #### Complexity\n * Linear.\n *\n * #### Example\n * ```typescript\n * import { some } from '@lumino/algorithm';\n *\n * let data = [5, 7, 1];\n *\n * some(data, value => value === 7); // true\n * some(data, value => value === 3); // false\n * ```\n */\nfunction some(object, fn) {\n let index = 0;\n for (const value of object) {\n if (fn(value, index++)) {\n return true;\n }\n }\n return false;\n}\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * Transform the values of an iterable with a mapping function.\n *\n * @param object - The iterable object of interest.\n *\n * @param fn - The mapping function to invoke for each value.\n *\n * @returns An iterator which yields the transformed values.\n *\n * #### Example\n * ```typescript\n * import { map } from '@lumino/algorithm';\n *\n * let data = [1, 2, 3];\n *\n * let stream = map(data, value => value * 2);\n *\n * Array.from(stream); // [2, 4, 6]\n * ```\n */\nfunction* map(object, fn) {\n let index = 0;\n for (const value of object) {\n yield fn(value, index++);\n }\n}\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * Create an iterator of evenly spaced values.\n *\n * @param start - The starting value for the range, inclusive.\n *\n * @param stop - The stopping value for the range, exclusive.\n *\n * @param step - The distance between each value.\n *\n * @returns An iterator which produces evenly spaced values.\n *\n * #### Notes\n * In the single argument form of `range(stop)`, `start` defaults to\n * `0` and `step` defaults to `1`.\n *\n * In the two argument form of `range(start, stop)`, `step` defaults\n * to `1`.\n *\n * #### Example\n * ```typescript\n * import { range } from '@lumino/algorithm';\n *\n * let stream = range(2, 4);\n *\n * Array.from(stream); // [2, 3]\n * ```\n */\nfunction* range(start, stop, step) {\n if (stop === undefined) {\n stop = start;\n start = 0;\n step = 1;\n }\n else if (step === undefined) {\n step = 1;\n }\n const length = Private.rangeLength(start, stop, step);\n for (let index = 0; index < length; index++) {\n yield start + step * index;\n }\n}\n/**\n * The namespace for the module implementation details.\n */\nvar Private;\n(function (Private) {\n /**\n * Compute the effective length of a range.\n *\n * @param start - The starting value for the range, inclusive.\n *\n * @param stop - The stopping value for the range, exclusive.\n *\n * @param step - The distance between each value.\n *\n * @returns The number of steps need to traverse the range.\n */\n function rangeLength(start, stop, step) {\n if (step === 0) {\n return Infinity;\n }\n if (start > stop && step > 0) {\n return 0;\n }\n if (start < stop && step < 0) {\n return 0;\n }\n return Math.ceil((stop - start) / step);\n }\n Private.rangeLength = rangeLength;\n})(Private || (Private = {}));\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\nfunction reduce(object, fn, initial) {\n // Setup the iterator and fetch the first value.\n const it = object[Symbol.iterator]();\n let index = 0;\n let first = it.next();\n // An empty iterator and no initial value is an error.\n if (first.done && initial === undefined) {\n throw new TypeError('Reduce of empty iterable with no initial value.');\n }\n // If the iterator is empty, return the initial value.\n if (first.done) {\n return initial;\n }\n // If the iterator has a single item and no initial value, the\n // reducer is not invoked and the first item is the return value.\n let second = it.next();\n if (second.done && initial === undefined) {\n return first.value;\n }\n // If iterator has a single item and an initial value is provided,\n // the reducer is invoked and that result is the return value.\n if (second.done) {\n return fn(initial, first.value, index++);\n }\n // Setup the initial accumlated value.\n let accumulator;\n if (initial === undefined) {\n accumulator = fn(first.value, second.value, index++);\n }\n else {\n accumulator = fn(fn(initial, first.value, index++), second.value, index++);\n }\n // Iterate the rest of the values, updating the accumulator.\n let next;\n while (!(next = it.next()).done) {\n accumulator = fn(accumulator, next.value, index++);\n }\n // Return the final accumulated value.\n return accumulator;\n}\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * Create an iterator which repeats a value a number of times.\n *\n * @deprecated\n *\n * @param value - The value to repeat.\n *\n * @param count - The number of times to repeat the value.\n *\n * @returns A new iterator which repeats the specified value.\n *\n * #### Example\n * ```typescript\n * import { repeat } from '@lumino/algorithm';\n *\n * let stream = repeat(7, 3);\n *\n * Array.from(stream); // [7, 7, 7]\n * ```\n */\nfunction* repeat(value, count) {\n while (0 < count--) {\n yield value;\n }\n}\n/**\n * Create an iterator which yields a value a single time.\n *\n * @deprecated\n *\n * @param value - The value to wrap in an iterator.\n *\n * @returns A new iterator which yields the value a single time.\n *\n * #### Example\n * ```typescript\n * import { once } from '@lumino/algorithm';\n *\n * let stream = once(7);\n *\n * Array.from(stream); // [7]\n * ```\n */\nfunction* once(value) {\n yield value;\n}\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * Create an iterator for a retroable object.\n *\n * @param object - The retroable or array-like object of interest.\n *\n * @returns An iterator which traverses the object's values in reverse.\n *\n * #### Example\n * ```typescript\n * import { retro } from '@lumino/algorithm';\n *\n * let data = [1, 2, 3, 4, 5, 6];\n *\n * let stream = retro(data);\n *\n * Array.from(stream); // [6, 5, 4, 3, 2, 1]\n * ```\n */\nfunction* retro(object) {\n if (typeof object.retro === 'function') {\n yield* object.retro();\n }\n else {\n for (let index = object.length - 1; index > -1; index--) {\n yield object[index];\n }\n }\n}\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * Topologically sort an iterable of edges.\n *\n * @param edges - The iterable object of edges to sort.\n * An edge is represented as a 2-tuple of `[fromNode, toNode]`.\n *\n * @returns The topologically sorted array of nodes.\n *\n * #### Notes\n * If a cycle is present in the graph, the cycle will be ignored and\n * the return value will be only approximately sorted.\n *\n * #### Example\n * ```typescript\n * import { topologicSort } from '@lumino/algorithm';\n *\n * let data = [\n * ['d', 'e'],\n * ['c', 'd'],\n * ['a', 'b'],\n * ['b', 'c']\n * ];\n *\n * topologicSort(data); // ['a', 'b', 'c', 'd', 'e']\n * ```\n */\nfunction topologicSort(edges) {\n // Setup the shared sorting state.\n let sorted = [];\n let visited = new Set();\n let graph = new Map();\n // Add the edges to the graph.\n for (const edge of edges) {\n addEdge(edge);\n }\n // Visit each node in the graph.\n for (const [k] of graph) {\n visit(k);\n }\n // Return the sorted results.\n return sorted;\n // Add an edge to the graph.\n function addEdge(edge) {\n let [fromNode, toNode] = edge;\n let children = graph.get(toNode);\n if (children) {\n children.push(fromNode);\n }\n else {\n graph.set(toNode, [fromNode]);\n }\n }\n // Recursively visit the node.\n function visit(node) {\n if (visited.has(node)) {\n return;\n }\n visited.add(node);\n let children = graph.get(node);\n if (children) {\n for (const child of children) {\n visit(child);\n }\n }\n sorted.push(node);\n }\n}\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * Iterate over an iterable using a stepped increment.\n *\n * @param object - The iterable object of interest.\n *\n * @param step - The distance to step on each iteration. A value\n * of less than `1` will behave the same as a value of `1`.\n *\n * @returns An iterator which traverses the iterable step-wise.\n *\n * #### Example\n * ```typescript\n * import { stride } from '@lumino/algorithm';\n *\n * let data = [1, 2, 3, 4, 5, 6];\n *\n * let stream = stride(data, 2);\n *\n * Array.from(stream); // [1, 3, 5];\n * ```\n */\nfunction* stride(object, step) {\n let count = 0;\n for (const value of object) {\n if (0 === count++ % step) {\n yield value;\n }\n }\n}\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * The namespace for string-specific algorithms.\n */\nvar StringExt;\n(function (StringExt) {\n /**\n * Find the indices of characters in a source text.\n *\n * @param source - The source text which should be searched.\n *\n * @param query - The characters to locate in the source text.\n *\n * @param start - The index to start the search.\n *\n * @returns The matched indices, or `null` if there is no match.\n *\n * #### Complexity\n * Linear on `sourceText`.\n *\n * #### Notes\n * In order for there to be a match, all of the characters in `query`\n * **must** appear in `source` in the order given by `query`.\n *\n * Characters are matched using strict `===` equality.\n */\n function findIndices(source, query, start = 0) {\n let indices = new Array(query.length);\n for (let i = 0, j = start, n = query.length; i < n; ++i, ++j) {\n j = source.indexOf(query[i], j);\n if (j === -1) {\n return null;\n }\n indices[i] = j;\n }\n return indices;\n }\n StringExt.findIndices = findIndices;\n /**\n * A string matcher which uses a sum-of-squares algorithm.\n *\n * @param source - The source text which should be searched.\n *\n * @param query - The characters to locate in the source text.\n *\n * @param start - The index to start the search.\n *\n * @returns The match result, or `null` if there is no match.\n * A lower `score` represents a stronger match.\n *\n * #### Complexity\n * Linear on `sourceText`.\n *\n * #### Notes\n * This scoring algorithm uses a sum-of-squares approach to determine\n * the score. In order for there to be a match, all of the characters\n * in `query` **must** appear in `source` in order. The index of each\n * matching character is squared and added to the score. This means\n * that early and consecutive character matches are preferred, while\n * late matches are heavily penalized.\n */\n function matchSumOfSquares(source, query, start = 0) {\n let indices = findIndices(source, query, start);\n if (!indices) {\n return null;\n }\n let score = 0;\n for (let i = 0, n = indices.length; i < n; ++i) {\n let j = indices[i] - start;\n score += j * j;\n }\n return { score, indices };\n }\n StringExt.matchSumOfSquares = matchSumOfSquares;\n /**\n * A string matcher which uses a sum-of-deltas algorithm.\n *\n * @param source - The source text which should be searched.\n *\n * @param query - The characters to locate in the source text.\n *\n * @param start - The index to start the search.\n *\n * @returns The match result, or `null` if there is no match.\n * A lower `score` represents a stronger match.\n *\n * #### Complexity\n * Linear on `sourceText`.\n *\n * #### Notes\n * This scoring algorithm uses a sum-of-deltas approach to determine\n * the score. In order for there to be a match, all of the characters\n * in `query` **must** appear in `source` in order. The delta between\n * the indices are summed to create the score. This means that groups\n * of matched characters are preferred, while fragmented matches are\n * penalized.\n */\n function matchSumOfDeltas(source, query, start = 0) {\n let indices = findIndices(source, query, start);\n if (!indices) {\n return null;\n }\n let score = 0;\n let last = start - 1;\n for (let i = 0, n = indices.length; i < n; ++i) {\n let j = indices[i];\n score += j - last - 1;\n last = j;\n }\n return { score, indices };\n }\n StringExt.matchSumOfDeltas = matchSumOfDeltas;\n /**\n * Highlight the matched characters of a source text.\n *\n * @param source - The text which should be highlighted.\n *\n * @param indices - The indices of the matched characters. They must\n * appear in increasing order and must be in bounds of the source.\n *\n * @param fn - The function to apply to the matched chunks.\n *\n * @returns An array of unmatched and highlighted chunks.\n */\n function highlight(source, indices, fn) {\n // Set up the result array.\n let result = [];\n // Set up the counter variables.\n let k = 0;\n let last = 0;\n let n = indices.length;\n // Iterator over each index.\n while (k < n) {\n // Set up the chunk indices.\n let i = indices[k];\n let j = indices[k];\n // Advance the right chunk index until it's non-contiguous.\n while (++k < n && indices[k] === j + 1) {\n j++;\n }\n // Extract the unmatched text.\n if (last < i) {\n result.push(source.slice(last, i));\n }\n // Extract and highlight the matched text.\n if (i < j + 1) {\n result.push(fn(source.slice(i, j + 1)));\n }\n // Update the last visited index.\n last = j + 1;\n }\n // Extract any remaining unmatched text.\n if (last < source.length) {\n result.push(source.slice(last));\n }\n // Return the highlighted result.\n return result;\n }\n StringExt.highlight = highlight;\n /**\n * A 3-way string comparison function.\n *\n * @param a - The first string of interest.\n *\n * @param b - The second string of interest.\n *\n * @returns `-1` if `a < b`, else `1` if `a > b`, else `0`.\n */\n function cmp(a, b) {\n return a < b ? -1 : a > b ? 1 : 0;\n }\n StringExt.cmp = cmp;\n})(StringExt || (StringExt = {}));\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * Take a fixed number of items from an iterable.\n *\n * @param object - The iterable object of interest.\n *\n * @param count - The number of items to take from the iterable.\n *\n * @returns An iterator which yields the specified number of items\n * from the source iterable.\n *\n * #### Notes\n * The returned iterator will exhaust early if the source iterable\n * contains an insufficient number of items.\n *\n * #### Example\n * ```typescript\n * import { take } from '@lumino/algorithm';\n *\n * let stream = take([5, 4, 3, 2, 1, 0, -1], 3);\n *\n * Array.from(stream); // [5, 4, 3]\n * ```\n */\nfunction* take(object, count) {\n if (count < 1) {\n return;\n }\n const it = object[Symbol.iterator]();\n let item;\n while (0 < count-- && !(item = it.next()).done) {\n yield item.value;\n }\n}\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * Iterate several iterables in lockstep.\n *\n * @param objects - The iterable objects of interest.\n *\n * @returns An iterator which yields successive tuples of values where\n * each value is taken in turn from the provided iterables. It will\n * be as long as the shortest provided iterable.\n *\n * #### Example\n * ```typescript\n * import { zip } from '@lumino/algorithm';\n *\n * let data1 = [1, 2, 3];\n * let data2 = [4, 5, 6];\n *\n * let stream = zip(data1, data2);\n *\n * Array.from(stream); // [[1, 4], [2, 5], [3, 6]]\n * ```\n */\nfunction* zip(...objects) {\n const iters = objects.map(obj => obj[Symbol.iterator]());\n let tuple = iters.map(it => it.next());\n for (; every(tuple, item => !item.done); tuple = iters.map(it => it.next())) {\n yield tuple.map(item => item.value);\n }\n}\n\nexport { ArrayExt, StringExt, chain, each, empty, enumerate, every, filter, find, findIndex, map, max, min, minmax, once, range, reduce, repeat, retro, some, stride, take, toArray, toObject, topologicSort, zip };\n//# sourceMappingURL=index.es6.js.map\n","(function (global, factory) {\n typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :\n typeof define === 'function' && define.amd ? define(['exports'], factory) :\n (global = typeof globalThis !== 'undefined' ? globalThis : global || self, factory(global.lumino_coreutils = {}));\n})(this, (function (exports) { 'use strict';\n\n // Copyright (c) Jupyter Development Team.\n // Distributed under the terms of the Modified BSD License.\n /*-----------------------------------------------------------------------------\n | Copyright (c) 2014-2017, PhosphorJS Contributors\n |\n | Distributed under the terms of the BSD 3-Clause License.\n |\n | The full license is in the file LICENSE, distributed with this software.\n |----------------------------------------------------------------------------*/\n /**\n * The namespace for JSON-specific functions.\n */\n exports.JSONExt = void 0;\n (function (JSONExt) {\n /**\n * A shared frozen empty JSONObject\n */\n JSONExt.emptyObject = Object.freeze({});\n /**\n * A shared frozen empty JSONArray\n */\n JSONExt.emptyArray = Object.freeze([]);\n /**\n * Test whether a JSON value is a primitive.\n *\n * @param value - The JSON value of interest.\n *\n * @returns `true` if the value is a primitive,`false` otherwise.\n */\n function isPrimitive(value) {\n return (value === null ||\n typeof value === 'boolean' ||\n typeof value === 'number' ||\n typeof value === 'string');\n }\n JSONExt.isPrimitive = isPrimitive;\n function isArray(value) {\n return Array.isArray(value);\n }\n JSONExt.isArray = isArray;\n function isObject(value) {\n return !isPrimitive(value) && !isArray(value);\n }\n JSONExt.isObject = isObject;\n /**\n * Compare two JSON values for deep equality.\n *\n * @param first - The first JSON value of interest.\n *\n * @param second - The second JSON value of interest.\n *\n * @returns `true` if the values are equivalent, `false` otherwise.\n */\n function deepEqual(first, second) {\n // Check referential and primitive equality first.\n if (first === second) {\n return true;\n }\n // If one is a primitive, the `===` check ruled out the other.\n if (isPrimitive(first) || isPrimitive(second)) {\n return false;\n }\n // Test whether they are arrays.\n let a1 = isArray(first);\n let a2 = isArray(second);\n // Bail if the types are different.\n if (a1 !== a2) {\n return false;\n }\n // If they are both arrays, compare them.\n if (a1 && a2) {\n return deepArrayEqual(first, second);\n }\n // At this point, they must both be objects.\n return deepObjectEqual(first, second);\n }\n JSONExt.deepEqual = deepEqual;\n /**\n * Create a deep copy of a JSON value.\n *\n * @param value - The JSON value to copy.\n *\n * @returns A deep copy of the given JSON value.\n */\n function deepCopy(value) {\n // Do nothing for primitive values.\n if (isPrimitive(value)) {\n return value;\n }\n // Deep copy an array.\n if (isArray(value)) {\n return deepArrayCopy(value);\n }\n // Deep copy an object.\n return deepObjectCopy(value);\n }\n JSONExt.deepCopy = deepCopy;\n /**\n * Compare two JSON arrays for deep equality.\n */\n function deepArrayEqual(first, second) {\n // Check referential equality first.\n if (first === second) {\n return true;\n }\n // Test the arrays for equal length.\n if (first.length !== second.length) {\n return false;\n }\n // Compare the values for equality.\n for (let i = 0, n = first.length; i < n; ++i) {\n if (!deepEqual(first[i], second[i])) {\n return false;\n }\n }\n // At this point, the arrays are equal.\n return true;\n }\n /**\n * Compare two JSON objects for deep equality.\n */\n function deepObjectEqual(first, second) {\n // Check referential equality first.\n if (first === second) {\n return true;\n }\n // Check for the first object's keys in the second object.\n for (let key in first) {\n if (first[key] !== undefined && !(key in second)) {\n return false;\n }\n }\n // Check for the second object's keys in the first object.\n for (let key in second) {\n if (second[key] !== undefined && !(key in first)) {\n return false;\n }\n }\n // Compare the values for equality.\n for (let key in first) {\n // Get the values.\n let firstValue = first[key];\n let secondValue = second[key];\n // If both are undefined, ignore the key.\n if (firstValue === undefined && secondValue === undefined) {\n continue;\n }\n // If only one value is undefined, the objects are not equal.\n if (firstValue === undefined || secondValue === undefined) {\n return false;\n }\n // Compare the values.\n if (!deepEqual(firstValue, secondValue)) {\n return false;\n }\n }\n // At this point, the objects are equal.\n return true;\n }\n /**\n * Create a deep copy of a JSON array.\n */\n function deepArrayCopy(value) {\n let result = new Array(value.length);\n for (let i = 0, n = value.length; i < n; ++i) {\n result[i] = deepCopy(value[i]);\n }\n return result;\n }\n /**\n * Create a deep copy of a JSON object.\n */\n function deepObjectCopy(value) {\n let result = {};\n for (let key in value) {\n // Ignore undefined values.\n let subvalue = value[key];\n if (subvalue === undefined) {\n continue;\n }\n result[key] = deepCopy(subvalue);\n }\n return result;\n }\n })(exports.JSONExt || (exports.JSONExt = {}));\n\n // Copyright (c) Jupyter Development Team.\n // Distributed under the terms of the Modified BSD License.\n /*-----------------------------------------------------------------------------\n | Copyright (c) 2014-2017, PhosphorJS Contributors\n |\n | Distributed under the terms of the BSD 3-Clause License.\n |\n | The full license is in the file LICENSE, distributed with this software.\n |----------------------------------------------------------------------------*/\n /**\n * An object which stores MIME data for general application use.\n *\n * #### Notes\n * This class does not attempt to enforce \"correctness\" of MIME types\n * and their associated data. Since this class is designed to transfer\n * arbitrary data and objects within the same application, it assumes\n * that the user provides correct and accurate data.\n */\n class MimeData {\n constructor() {\n this._types = [];\n this._values = [];\n }\n /**\n * Get an array of the MIME types contained within the dataset.\n *\n * @returns A new array of the MIME types, in order of insertion.\n */\n types() {\n return this._types.slice();\n }\n /**\n * Test whether the dataset has an entry for the given type.\n *\n * @param mime - The MIME type of interest.\n *\n * @returns `true` if the dataset contains a value for the given\n * MIME type, `false` otherwise.\n */\n hasData(mime) {\n return this._types.indexOf(mime) !== -1;\n }\n /**\n * Get the data value for the given MIME type.\n *\n * @param mime - The MIME type of interest.\n *\n * @returns The value for the given MIME type, or `undefined` if\n * the dataset does not contain a value for the type.\n */\n getData(mime) {\n let i = this._types.indexOf(mime);\n return i !== -1 ? this._values[i] : undefined;\n }\n /**\n * Set the data value for the given MIME type.\n *\n * @param mime - The MIME type of interest.\n *\n * @param data - The data value for the given MIME type.\n *\n * #### Notes\n * This will overwrite any previous entry for the MIME type.\n */\n setData(mime, data) {\n this.clearData(mime);\n this._types.push(mime);\n this._values.push(data);\n }\n /**\n * Remove the data entry for the given MIME type.\n *\n * @param mime - The MIME type of interest.\n *\n * #### Notes\n * This is a no-op if there is no entry for the given MIME type.\n */\n clearData(mime) {\n let i = this._types.indexOf(mime);\n if (i !== -1) {\n this._types.splice(i, 1);\n this._values.splice(i, 1);\n }\n }\n /**\n * Remove all data entries from the dataset.\n */\n clear() {\n this._types.length = 0;\n this._values.length = 0;\n }\n }\n\n // Copyright (c) Jupyter Development Team.\n // Distributed under the terms of the Modified BSD License.\n /*-----------------------------------------------------------------------------\n | Copyright (c) 2014-2017, PhosphorJS Contributors\n |\n | Distributed under the terms of the BSD 3-Clause License.\n |\n | The full license is in the file LICENSE, distributed with this software.\n |----------------------------------------------------------------------------*/\n /**\n * A class which wraps a promise into a delegate object.\n *\n * #### Notes\n * This class is useful when the logic to resolve or reject a promise\n * cannot be defined at the point where the promise is created.\n */\n class PromiseDelegate {\n /**\n * Construct a new promise delegate.\n */\n constructor() {\n this.promise = new Promise((resolve, reject) => {\n this._resolve = resolve;\n this._reject = reject;\n });\n }\n /**\n * Resolve the wrapped promise with the given value.\n *\n * @param value - The value to use for resolving the promise.\n */\n resolve(value) {\n let resolve = this._resolve;\n resolve(value);\n }\n /**\n * Reject the wrapped promise with the given value.\n *\n * @reason - The reason for rejecting the promise.\n */\n reject(reason) {\n let reject = this._reject;\n reject(reason);\n }\n }\n\n // Copyright (c) Jupyter Development Team.\n // Distributed under the terms of the Modified BSD License.\n /*-----------------------------------------------------------------------------\n | Copyright (c) 2014-2017, PhosphorJS Contributors\n |\n | Distributed under the terms of the BSD 3-Clause License.\n |\n | The full license is in the file LICENSE, distributed with this software.\n |----------------------------------------------------------------------------*/\n /**\n * A runtime object which captures compile-time type information.\n *\n * #### Notes\n * A token captures the compile-time type of an interface or class in\n * an object which can be used at runtime in a type-safe fashion.\n */\n class Token {\n /**\n * Construct a new token.\n *\n * @param name - A human readable name for the token.\n * @param description - Token purpose description for documentation.\n */\n constructor(name, description) {\n this.name = name;\n this.description = description !== null && description !== void 0 ? description : '';\n this._tokenStructuralPropertyT = null;\n }\n }\n\n // Copyright (c) Jupyter Development Team.\n // Distributed under the terms of the Modified BSD License.\n /*-----------------------------------------------------------------------------\n | Copyright (c) 2014-2017, PhosphorJS Contributors\n |\n | Distributed under the terms of the BSD 3-Clause License.\n |\n | The full license is in the file LICENSE, distributed with this software.\n |----------------------------------------------------------------------------*/\n // Fallback\n function fallbackRandomValues(buffer) {\n let value = 0;\n for (let i = 0, n = buffer.length; i < n; ++i) {\n if (i % 4 === 0) {\n value = (Math.random() * 0xffffffff) >>> 0;\n }\n buffer[i] = value & 0xff;\n value >>>= 8;\n }\n }\n\n // Copyright (c) Jupyter Development Team.\n // Distributed under the terms of the Modified BSD License.\n /*-----------------------------------------------------------------------------\n | Copyright (c) 2014-2017, PhosphorJS Contributors\n |\n | Distributed under the terms of the BSD 3-Clause License.\n |\n | The full license is in the file LICENSE, distributed with this software.\n |----------------------------------------------------------------------------*/\n /**\n * The namespace for random number related functionality.\n */\n exports.Random = void 0;\n (function (Random) {\n /**\n * A function which generates random bytes.\n *\n * @param buffer - The `Uint8Array` to fill with random bytes.\n *\n * #### Notes\n * A cryptographically strong random number generator will be used if\n * available. Otherwise, `Math.random` will be used as a fallback for\n * randomness.\n *\n * The following RNGs are supported, listed in order of precedence:\n * - `window.crypto.getRandomValues`\n * - `window.msCrypto.getRandomValues`\n * - `require('crypto').randomFillSync\n * - `require('crypto').randomBytes\n * - `Math.random`\n */\n Random.getRandomValues = (() => {\n // Look up the crypto module if available.\n const crypto = (typeof window !== 'undefined' && (window.crypto || window.msCrypto)) ||\n null;\n // Modern browsers and IE 11\n if (crypto && typeof crypto.getRandomValues === 'function') {\n return function getRandomValues(buffer) {\n return crypto.getRandomValues(buffer);\n };\n }\n // Fallback\n return fallbackRandomValues;\n })();\n })(exports.Random || (exports.Random = {}));\n\n // Copyright (c) Jupyter Development Team.\n // Distributed under the terms of the Modified BSD License.\n /*-----------------------------------------------------------------------------\n | Copyright (c) 2014-2017, PhosphorJS Contributors\n |\n | Distributed under the terms of the BSD 3-Clause License.\n |\n | The full license is in the file LICENSE, distributed with this software.\n |----------------------------------------------------------------------------*/\n /**\n * A function which creates a function that generates UUID v4 identifiers.\n *\n * @returns A new function that creates a UUID v4 string.\n *\n * #### Notes\n * This implementation complies with RFC 4122.\n *\n * This uses `Random.getRandomValues()` for random bytes, which in\n * turn will use the underlying `crypto` module of the platform if\n * it is available. The fallback for randomness is `Math.random`.\n */\n function uuid4Factory(getRandomValues) {\n // Create a 16 byte array to hold the random values.\n const bytes = new Uint8Array(16);\n // Create a look up table from bytes to hex strings.\n const lut = new Array(256);\n // Pad the single character hex digits with a leading zero.\n for (let i = 0; i < 16; ++i) {\n lut[i] = '0' + i.toString(16);\n }\n // Populate the rest of the hex digits.\n for (let i = 16; i < 256; ++i) {\n lut[i] = i.toString(16);\n }\n // Return a function which generates the UUID.\n return function uuid4() {\n // Get a new batch of random values.\n getRandomValues(bytes);\n // Set the UUID version number to 4.\n bytes[6] = 0x40 | (bytes[6] & 0x0f);\n // Set the clock sequence bit to the RFC spec.\n bytes[8] = 0x80 | (bytes[8] & 0x3f);\n // Assemble the UUID string.\n return (lut[bytes[0]] +\n lut[bytes[1]] +\n lut[bytes[2]] +\n lut[bytes[3]] +\n '-' +\n lut[bytes[4]] +\n lut[bytes[5]] +\n '-' +\n lut[bytes[6]] +\n lut[bytes[7]] +\n '-' +\n lut[bytes[8]] +\n lut[bytes[9]] +\n '-' +\n lut[bytes[10]] +\n lut[bytes[11]] +\n lut[bytes[12]] +\n lut[bytes[13]] +\n lut[bytes[14]] +\n lut[bytes[15]]);\n };\n }\n\n // Copyright (c) Jupyter Development Team.\n // Distributed under the terms of the Modified BSD License.\n /*-----------------------------------------------------------------------------\n | Copyright (c) 2014-2017, PhosphorJS Contributors\n |\n | Distributed under the terms of the BSD 3-Clause License.\n |\n | The full license is in the file LICENSE, distributed with this software.\n |----------------------------------------------------------------------------*/\n /**\n * The namespace for UUID related functionality.\n */\n exports.UUID = void 0;\n (function (UUID) {\n /**\n * A function which generates UUID v4 identifiers.\n *\n * @returns A new UUID v4 string.\n *\n * #### Notes\n * This implementation complies with RFC 4122.\n *\n * This uses `Random.getRandomValues()` for random bytes, which in\n * turn will use the underlying `crypto` module of the platform if\n * it is available. The fallback for randomness is `Math.random`.\n */\n UUID.uuid4 = uuid4Factory(exports.Random.getRandomValues);\n })(exports.UUID || (exports.UUID = {}));\n\n exports.MimeData = MimeData;\n exports.PromiseDelegate = PromiseDelegate;\n exports.Token = Token;\n\n}));\n//# sourceMappingURL=index.js.map\n","import { find, ArrayExt } from '@lumino/algorithm';\nimport { PromiseDelegate } from '@lumino/coreutils';\n\n// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n/*-----------------------------------------------------------------------------\n| Copyright (c) 2014-2017, PhosphorJS Contributors\n|\n| Distributed under the terms of the BSD 3-Clause License.\n|\n| The full license is in the file LICENSE, distributed with this software.\n|----------------------------------------------------------------------------*/\n/**\n * @packageDocumentation\n * @module signaling\n */\n/**\n * A concrete implementation of `ISignal`.\n *\n * #### Example\n * ```typescript\n * import { ISignal, Signal } from '@lumino/signaling';\n *\n * class SomeClass {\n *\n * constructor(name: string) {\n * this.name = name;\n * }\n *\n * readonly name: string;\n *\n * get valueChanged: ISignal {\n * return this._valueChanged;\n * }\n *\n * get value(): number {\n * return this._value;\n * }\n *\n * set value(value: number) {\n * if (value === this._value) {\n * return;\n * }\n * this._value = value;\n * this._valueChanged.emit(value);\n * }\n *\n * private _value = 0;\n * private _valueChanged = new Signal(this);\n * }\n *\n * function logger(sender: SomeClass, value: number): void {\n * console.log(sender.name, value);\n * }\n *\n * let m1 = new SomeClass('foo');\n * let m2 = new SomeClass('bar');\n *\n * m1.valueChanged.connect(logger);\n * m2.valueChanged.connect(logger);\n *\n * m1.value = 42; // logs: foo 42\n * m2.value = 17; // logs: bar 17\n * ```\n */\nclass Signal {\n /**\n * Construct a new signal.\n *\n * @param sender - The sender which owns the signal.\n */\n constructor(sender) {\n this.sender = sender;\n }\n /**\n * Connect a slot to the signal.\n *\n * @param slot - The slot to invoke when the signal is emitted.\n *\n * @param thisArg - The `this` context for the slot. If provided,\n * this must be a non-primitive object.\n *\n * @returns `true` if the connection succeeds, `false` otherwise.\n */\n connect(slot, thisArg) {\n return Private.connect(this, slot, thisArg);\n }\n /**\n * Disconnect a slot from the signal.\n *\n * @param slot - The slot to disconnect from the signal.\n *\n * @param thisArg - The `this` context for the slot. If provided,\n * this must be a non-primitive object.\n *\n * @returns `true` if the connection is removed, `false` otherwise.\n */\n disconnect(slot, thisArg) {\n return Private.disconnect(this, slot, thisArg);\n }\n /**\n * Emit the signal and invoke the connected slots.\n *\n * @param args - The args to pass to the connected slots.\n *\n * #### Notes\n * Slots are invoked synchronously in connection order.\n *\n * Exceptions thrown by connected slots will be caught and logged.\n */\n emit(args) {\n Private.emit(this, args);\n }\n}\n/**\n * The namespace for the `Signal` class statics.\n */\n(function (Signal) {\n /**\n * Remove all connections between a sender and receiver.\n *\n * @param sender - The sender object of interest.\n *\n * @param receiver - The receiver object of interest.\n *\n * #### Notes\n * If a `thisArg` is provided when connecting a signal, that object\n * is considered the receiver. Otherwise, the `slot` is considered\n * the receiver.\n */\n function disconnectBetween(sender, receiver) {\n Private.disconnectBetween(sender, receiver);\n }\n Signal.disconnectBetween = disconnectBetween;\n /**\n * Remove all connections where the given object is the sender.\n *\n * @param sender - The sender object of interest.\n */\n function disconnectSender(sender) {\n Private.disconnectSender(sender);\n }\n Signal.disconnectSender = disconnectSender;\n /**\n * Remove all connections where the given object is the receiver.\n *\n * @param receiver - The receiver object of interest.\n *\n * #### Notes\n * If a `thisArg` is provided when connecting a signal, that object\n * is considered the receiver. Otherwise, the `slot` is considered\n * the receiver.\n */\n function disconnectReceiver(receiver) {\n Private.disconnectReceiver(receiver);\n }\n Signal.disconnectReceiver = disconnectReceiver;\n /**\n * Remove all connections where an object is the sender or receiver.\n *\n * @param object - The object of interest.\n *\n * #### Notes\n * If a `thisArg` is provided when connecting a signal, that object\n * is considered the receiver. Otherwise, the `slot` is considered\n * the receiver.\n */\n function disconnectAll(object) {\n Private.disconnectAll(object);\n }\n Signal.disconnectAll = disconnectAll;\n /**\n * Clear all signal data associated with the given object.\n *\n * @param object - The object for which the data should be cleared.\n *\n * #### Notes\n * This removes all signal connections and any other signal data\n * associated with the object.\n */\n function clearData(object) {\n Private.disconnectAll(object);\n }\n Signal.clearData = clearData;\n /**\n * Get the signal exception handler.\n *\n * @returns The current exception handler.\n *\n * #### Notes\n * The default exception handler is `console.error`.\n */\n function getExceptionHandler() {\n return Private.exceptionHandler;\n }\n Signal.getExceptionHandler = getExceptionHandler;\n /**\n * Set the signal exception handler.\n *\n * @param handler - The function to use as the exception handler.\n *\n * @returns The old exception handler.\n *\n * #### Notes\n * The exception handler is invoked when a slot throws an exception.\n */\n function setExceptionHandler(handler) {\n let old = Private.exceptionHandler;\n Private.exceptionHandler = handler;\n return old;\n }\n Signal.setExceptionHandler = setExceptionHandler;\n})(Signal || (Signal = {}));\n/**\n * A concrete implementation of `IStream`.\n *\n * #### Example\n * ```typescript\n * import { IStream, Stream } from '@lumino/signaling';\n *\n * class SomeClass {\n *\n * constructor(name: string) {\n * this.name = name;\n * }\n *\n * readonly name: string;\n *\n * get pings(): IStream {\n * return this._pings;\n * }\n *\n * ping(value: string) {\n * this._pings.emit(value);\n * }\n *\n * private _pings = new Stream(this);\n * }\n *\n * let m1 = new SomeClass('foo');\n *\n * m1.pings.connect((_, value: string) => {\n * console.log('connect', value);\n * });\n *\n * void (async () => {\n * for await (const ping of m1.pings) {\n * console.log('iterator', ping);\n * }\n * })();\n *\n * m1.ping('alpha'); // logs: connect alpha\n * // logs: iterator alpha\n * m1.ping('beta'); // logs: connect beta\n * // logs: iterator beta\n * ```\n */\nclass Stream extends Signal {\n constructor() {\n super(...arguments);\n this._pending = new PromiseDelegate();\n }\n /**\n * Return an async iterator that yields every emission.\n */\n async *[Symbol.asyncIterator]() {\n let pending = this._pending;\n while (true) {\n try {\n const { args, next } = await pending.promise;\n pending = next;\n yield args;\n }\n catch (_) {\n return; // Any promise rejection stops the iterator.\n }\n }\n }\n /**\n * Emit the signal, invoke the connected slots, and yield the emission.\n *\n * @param args - The args to pass to the connected slots.\n */\n emit(args) {\n const pending = this._pending;\n const next = (this._pending = new PromiseDelegate());\n pending.resolve({ args, next });\n super.emit(args);\n }\n /**\n * Stop the stream's async iteration.\n */\n stop() {\n this._pending.promise.catch(() => undefined);\n this._pending.reject('stop');\n this._pending = new PromiseDelegate();\n }\n}\n/**\n * The namespace for the module implementation details.\n */\nvar Private;\n(function (Private) {\n /**\n * The signal exception handler function.\n */\n Private.exceptionHandler = (err) => {\n console.error(err);\n };\n /**\n * Connect a slot to a signal.\n *\n * @param signal - The signal of interest.\n *\n * @param slot - The slot to invoke when the signal is emitted.\n *\n * @param thisArg - The `this` context for the slot. If provided,\n * this must be a non-primitive object.\n *\n * @returns `true` if the connection succeeds, `false` otherwise.\n */\n function connect(signal, slot, thisArg) {\n // Coerce a `null` `thisArg` to `undefined`.\n thisArg = thisArg || undefined;\n // Ensure the sender's array of receivers is created.\n let receivers = receiversForSender.get(signal.sender);\n if (!receivers) {\n receivers = [];\n receiversForSender.set(signal.sender, receivers);\n }\n // Bail if a matching connection already exists.\n if (findConnection(receivers, signal, slot, thisArg)) {\n return false;\n }\n // Choose the best object for the receiver.\n let receiver = thisArg || slot;\n // Ensure the receiver's array of senders is created.\n let senders = sendersForReceiver.get(receiver);\n if (!senders) {\n senders = [];\n sendersForReceiver.set(receiver, senders);\n }\n // Create a new connection and add it to the end of each array.\n let connection = { signal, slot, thisArg };\n receivers.push(connection);\n senders.push(connection);\n // Indicate a successful connection.\n return true;\n }\n Private.connect = connect;\n /**\n * Disconnect a slot from a signal.\n *\n * @param signal - The signal of interest.\n *\n * @param slot - The slot to disconnect from the signal.\n *\n * @param thisArg - The `this` context for the slot. If provided,\n * this must be a non-primitive object.\n *\n * @returns `true` if the connection is removed, `false` otherwise.\n */\n function disconnect(signal, slot, thisArg) {\n // Coerce a `null` `thisArg` to `undefined`.\n thisArg = thisArg || undefined;\n // Lookup the list of receivers, and bail if none exist.\n let receivers = receiversForSender.get(signal.sender);\n if (!receivers || receivers.length === 0) {\n return false;\n }\n // Bail if no matching connection exits.\n let connection = findConnection(receivers, signal, slot, thisArg);\n if (!connection) {\n return false;\n }\n // Choose the best object for the receiver.\n let receiver = thisArg || slot;\n // Lookup the array of senders, which is now known to exist.\n let senders = sendersForReceiver.get(receiver);\n // Clear the connection and schedule cleanup of the arrays.\n connection.signal = null;\n scheduleCleanup(receivers);\n scheduleCleanup(senders);\n // Indicate a successful disconnection.\n return true;\n }\n Private.disconnect = disconnect;\n /**\n * Remove all connections between a sender and receiver.\n *\n * @param sender - The sender object of interest.\n *\n * @param receiver - The receiver object of interest.\n */\n function disconnectBetween(sender, receiver) {\n // If there are no receivers, there is nothing to do.\n let receivers = receiversForSender.get(sender);\n if (!receivers || receivers.length === 0) {\n return;\n }\n // If there are no senders, there is nothing to do.\n let senders = sendersForReceiver.get(receiver);\n if (!senders || senders.length === 0) {\n return;\n }\n // Clear each connection between the sender and receiver.\n for (const connection of senders) {\n // Skip connections which have already been cleared.\n if (!connection.signal) {\n continue;\n }\n // Clear the connection if it matches the sender.\n if (connection.signal.sender === sender) {\n connection.signal = null;\n }\n }\n // Schedule a cleanup of the senders and receivers.\n scheduleCleanup(receivers);\n scheduleCleanup(senders);\n }\n Private.disconnectBetween = disconnectBetween;\n /**\n * Remove all connections where the given object is the sender.\n *\n * @param sender - The sender object of interest.\n */\n function disconnectSender(sender) {\n // If there are no receivers, there is nothing to do.\n let receivers = receiversForSender.get(sender);\n if (!receivers || receivers.length === 0) {\n return;\n }\n // Clear each receiver connection.\n for (const connection of receivers) {\n // Skip connections which have already been cleared.\n if (!connection.signal) {\n continue;\n }\n // Choose the best object for the receiver.\n let receiver = connection.thisArg || connection.slot;\n // Clear the connection.\n connection.signal = null;\n // Cleanup the array of senders, which is now known to exist.\n scheduleCleanup(sendersForReceiver.get(receiver));\n }\n // Schedule a cleanup of the receivers.\n scheduleCleanup(receivers);\n }\n Private.disconnectSender = disconnectSender;\n /**\n * Remove all connections where the given object is the receiver.\n *\n * @param receiver - The receiver object of interest.\n */\n function disconnectReceiver(receiver) {\n // If there are no senders, there is nothing to do.\n let senders = sendersForReceiver.get(receiver);\n if (!senders || senders.length === 0) {\n return;\n }\n // Clear each sender connection.\n for (const connection of senders) {\n // Skip connections which have already been cleared.\n if (!connection.signal) {\n continue;\n }\n // Lookup the sender for the connection.\n let sender = connection.signal.sender;\n // Clear the connection.\n connection.signal = null;\n // Cleanup the array of receivers, which is now known to exist.\n scheduleCleanup(receiversForSender.get(sender));\n }\n // Schedule a cleanup of the list of senders.\n scheduleCleanup(senders);\n }\n Private.disconnectReceiver = disconnectReceiver;\n /**\n * Remove all connections where an object is the sender or receiver.\n *\n * @param object - The object of interest.\n */\n function disconnectAll(object) {\n // Remove all connections where the given object is the sender.\n disconnectSender(object);\n // Remove all connections where the given object is the receiver.\n disconnectReceiver(object);\n }\n Private.disconnectAll = disconnectAll;\n /**\n * Emit a signal and invoke its connected slots.\n *\n * @param signal - The signal of interest.\n *\n * @param args - The args to pass to the connected slots.\n *\n * #### Notes\n * Slots are invoked synchronously in connection order.\n *\n * Exceptions thrown by connected slots will be caught and logged.\n */\n function emit(signal, args) {\n // If there are no receivers, there is nothing to do.\n let receivers = receiversForSender.get(signal.sender);\n if (!receivers || receivers.length === 0) {\n return;\n }\n // Invoke the slots for connections with a matching signal.\n // Any connections added during emission are not invoked.\n for (let i = 0, n = receivers.length; i < n; ++i) {\n let connection = receivers[i];\n if (connection.signal === signal) {\n invokeSlot(connection, args);\n }\n }\n }\n Private.emit = emit;\n /**\n * A weak mapping of sender to array of receiver connections.\n */\n const receiversForSender = new WeakMap();\n /**\n * A weak mapping of receiver to array of sender connections.\n */\n const sendersForReceiver = new WeakMap();\n /**\n * A set of connection arrays which are pending cleanup.\n */\n const dirtySet = new Set();\n /**\n * A function to schedule an event loop callback.\n */\n const schedule = (() => {\n let ok = typeof requestAnimationFrame === 'function';\n return ok ? requestAnimationFrame : setImmediate;\n })();\n /**\n * Find a connection which matches the given parameters.\n */\n function findConnection(connections, signal, slot, thisArg) {\n return find(connections, connection => connection.signal === signal &&\n connection.slot === slot &&\n connection.thisArg === thisArg);\n }\n /**\n * Invoke a slot with the given parameters.\n *\n * The connection is assumed to be valid.\n *\n * Exceptions in the slot will be caught and logged.\n */\n function invokeSlot(connection, args) {\n let { signal, slot, thisArg } = connection;\n try {\n slot.call(thisArg, signal.sender, args);\n }\n catch (err) {\n Private.exceptionHandler(err);\n }\n }\n /**\n * Schedule a cleanup of a connection array.\n *\n * This will add the array to the dirty set and schedule a deferred\n * cleanup of the array contents. On cleanup, any connection with a\n * `null` signal will be removed from the array.\n */\n function scheduleCleanup(array) {\n if (dirtySet.size === 0) {\n schedule(cleanupDirtySet);\n }\n dirtySet.add(array);\n }\n /**\n * Cleanup the connection lists in the dirty set.\n *\n * This function should only be invoked asynchronously, when the\n * stack frame is guaranteed to not be on the path of user code.\n */\n function cleanupDirtySet() {\n dirtySet.forEach(cleanupConnections);\n dirtySet.clear();\n }\n /**\n * Cleanup the dirty connections in a connections array.\n *\n * This will remove any connection with a `null` signal.\n *\n * This function should only be invoked asynchronously, when the\n * stack frame is guaranteed to not be on the path of user code.\n */\n function cleanupConnections(connections) {\n ArrayExt.removeAllWhere(connections, isDeadConnection);\n }\n /**\n * Test whether a connection is dead.\n *\n * A dead connection has a `null` signal.\n */\n function isDeadConnection(connection) {\n return connection.signal === null;\n }\n})(Private || (Private = {}));\n\nexport { Signal, Stream };\n//# sourceMappingURL=index.es6.js.map\n","'use strict';\n\n/**\n * @param typeMap [Object] Map of MIME type -> Array[extensions]\n * @param ...\n */\nfunction Mime() {\n this._types = Object.create(null);\n this._extensions = Object.create(null);\n\n for (let i = 0; i < arguments.length; i++) {\n this.define(arguments[i]);\n }\n\n this.define = this.define.bind(this);\n this.getType = this.getType.bind(this);\n this.getExtension = this.getExtension.bind(this);\n}\n\n/**\n * Define mimetype -> extension mappings. Each key is a mime-type that maps\n * to an array of extensions associated with the type. The first extension is\n * used as the default extension for the type.\n *\n * e.g. mime.define({'audio/ogg', ['oga', 'ogg', 'spx']});\n *\n * If a type declares an extension that has already been defined, an error will\n * be thrown. To suppress this error and force the extension to be associated\n * with the new type, pass `force`=true. Alternatively, you may prefix the\n * extension with \"*\" to map the type to extension, without mapping the\n * extension to the type.\n *\n * e.g. mime.define({'audio/wav', ['wav']}, {'audio/x-wav', ['*wav']});\n *\n *\n * @param map (Object) type definitions\n * @param force (Boolean) if true, force overriding of existing definitions\n */\nMime.prototype.define = function(typeMap, force) {\n for (let type in typeMap) {\n let extensions = typeMap[type].map(function(t) {\n return t.toLowerCase();\n });\n type = type.toLowerCase();\n\n for (let i = 0; i < extensions.length; i++) {\n const ext = extensions[i];\n\n // '*' prefix = not the preferred type for this extension. So fixup the\n // extension, and skip it.\n if (ext[0] === '*') {\n continue;\n }\n\n if (!force && (ext in this._types)) {\n throw new Error(\n 'Attempt to change mapping for \"' + ext +\n '\" extension from \"' + this._types[ext] + '\" to \"' + type +\n '\". Pass `force=true` to allow this, otherwise remove \"' + ext +\n '\" from the list of extensions for \"' + type + '\".'\n );\n }\n\n this._types[ext] = type;\n }\n\n // Use first extension as default\n if (force || !this._extensions[type]) {\n const ext = extensions[0];\n this._extensions[type] = (ext[0] !== '*') ? ext : ext.substr(1);\n }\n }\n};\n\n/**\n * Lookup a mime type based on extension\n */\nMime.prototype.getType = function(path) {\n path = String(path);\n let last = path.replace(/^.*[/\\\\]/, '').toLowerCase();\n let ext = last.replace(/^.*\\./, '').toLowerCase();\n\n let hasPath = last.length < path.length;\n let hasDot = ext.length < last.length - 1;\n\n return (hasDot || !hasPath) && this._types[ext] || null;\n};\n\n/**\n * Return file extension associated with a mime type\n */\nMime.prototype.getExtension = function(type) {\n type = /^\\s*([^;\\s]*)/.test(type) && RegExp.$1;\n return type && this._extensions[type.toLowerCase()] || null;\n};\n\nmodule.exports = Mime;\n","'use strict';\n\nlet Mime = require('./Mime');\nmodule.exports = new Mime(require('./types/standard'), require('./types/other'));\n","module.exports = {\"application/prs.cww\":[\"cww\"],\"application/vnd.1000minds.decision-model+xml\":[\"1km\"],\"application/vnd.3gpp.pic-bw-large\":[\"plb\"],\"application/vnd.3gpp.pic-bw-small\":[\"psb\"],\"application/vnd.3gpp.pic-bw-var\":[\"pvb\"],\"application/vnd.3gpp2.tcap\":[\"tcap\"],\"application/vnd.3m.post-it-notes\":[\"pwn\"],\"application/vnd.accpac.simply.aso\":[\"aso\"],\"application/vnd.accpac.simply.imp\":[\"imp\"],\"application/vnd.acucobol\":[\"acu\"],\"application/vnd.acucorp\":[\"atc\",\"acutc\"],\"application/vnd.adobe.air-application-installer-package+zip\":[\"air\"],\"application/vnd.adobe.formscentral.fcdt\":[\"fcdt\"],\"application/vnd.adobe.fxp\":[\"fxp\",\"fxpl\"],\"application/vnd.adobe.xdp+xml\":[\"xdp\"],\"application/vnd.adobe.xfdf\":[\"xfdf\"],\"application/vnd.ahead.space\":[\"ahead\"],\"application/vnd.airzip.filesecure.azf\":[\"azf\"],\"application/vnd.airzip.filesecure.azs\":[\"azs\"],\"application/vnd.amazon.ebook\":[\"azw\"],\"application/vnd.americandynamics.acc\":[\"acc\"],\"application/vnd.amiga.ami\":[\"ami\"],\"application/vnd.android.package-archive\":[\"apk\"],\"application/vnd.anser-web-certificate-issue-initiation\":[\"cii\"],\"application/vnd.anser-web-funds-transfer-initiation\":[\"fti\"],\"application/vnd.antix.game-component\":[\"atx\"],\"application/vnd.apple.installer+xml\":[\"mpkg\"],\"application/vnd.apple.keynote\":[\"key\"],\"application/vnd.apple.mpegurl\":[\"m3u8\"],\"application/vnd.apple.numbers\":[\"numbers\"],\"application/vnd.apple.pages\":[\"pages\"],\"application/vnd.apple.pkpass\":[\"pkpass\"],\"application/vnd.aristanetworks.swi\":[\"swi\"],\"application/vnd.astraea-software.iota\":[\"iota\"],\"application/vnd.audiograph\":[\"aep\"],\"application/vnd.balsamiq.bmml+xml\":[\"bmml\"],\"application/vnd.blueice.multipass\":[\"mpm\"],\"application/vnd.bmi\":[\"bmi\"],\"application/vnd.businessobjects\":[\"rep\"],\"application/vnd.chemdraw+xml\":[\"cdxml\"],\"application/vnd.chipnuts.karaoke-mmd\":[\"mmd\"],\"application/vnd.cinderella\":[\"cdy\"],\"application/vnd.citationstyles.style+xml\":[\"csl\"],\"application/vnd.claymore\":[\"cla\"],\"application/vnd.cloanto.rp9\":[\"rp9\"],\"application/vnd.clonk.c4group\":[\"c4g\",\"c4d\",\"c4f\",\"c4p\",\"c4u\"],\"application/vnd.cluetrust.cartomobile-config\":[\"c11amc\"],\"application/vnd.cluetrust.cartomobile-config-pkg\":[\"c11amz\"],\"application/vnd.commonspace\":[\"csp\"],\"application/vnd.contact.cmsg\":[\"cdbcmsg\"],\"application/vnd.cosmocaller\":[\"cmc\"],\"application/vnd.crick.clicker\":[\"clkx\"],\"application/vnd.crick.clicker.keyboard\":[\"clkk\"],\"application/vnd.crick.clicker.palette\":[\"clkp\"],\"application/vnd.crick.clicker.template\":[\"clkt\"],\"application/vnd.crick.clicker.wordbank\":[\"clkw\"],\"application/vnd.criticaltools.wbs+xml\":[\"wbs\"],\"application/vnd.ctc-posml\":[\"pml\"],\"application/vnd.cups-ppd\":[\"ppd\"],\"application/vnd.curl.car\":[\"car\"],\"application/vnd.curl.pcurl\":[\"pcurl\"],\"application/vnd.dart\":[\"dart\"],\"application/vnd.data-vision.rdz\":[\"rdz\"],\"application/vnd.dbf\":[\"dbf\"],\"application/vnd.dece.data\":[\"uvf\",\"uvvf\",\"uvd\",\"uvvd\"],\"application/vnd.dece.ttml+xml\":[\"uvt\",\"uvvt\"],\"application/vnd.dece.unspecified\":[\"uvx\",\"uvvx\"],\"application/vnd.dece.zip\":[\"uvz\",\"uvvz\"],\"application/vnd.denovo.fcselayout-link\":[\"fe_launch\"],\"application/vnd.dna\":[\"dna\"],\"application/vnd.dolby.mlp\":[\"mlp\"],\"application/vnd.dpgraph\":[\"dpg\"],\"application/vnd.dreamfactory\":[\"dfac\"],\"application/vnd.ds-keypoint\":[\"kpxx\"],\"application/vnd.dvb.ait\":[\"ait\"],\"application/vnd.dvb.service\":[\"svc\"],\"application/vnd.dynageo\":[\"geo\"],\"application/vnd.ecowin.chart\":[\"mag\"],\"application/vnd.enliven\":[\"nml\"],\"application/vnd.epson.esf\":[\"esf\"],\"application/vnd.epson.msf\":[\"msf\"],\"application/vnd.epson.quickanime\":[\"qam\"],\"application/vnd.epson.salt\":[\"slt\"],\"application/vnd.epson.ssf\":[\"ssf\"],\"application/vnd.eszigno3+xml\":[\"es3\",\"et3\"],\"application/vnd.ezpix-album\":[\"ez2\"],\"application/vnd.ezpix-package\":[\"ez3\"],\"application/vnd.fdf\":[\"fdf\"],\"application/vnd.fdsn.mseed\":[\"mseed\"],\"application/vnd.fdsn.seed\":[\"seed\",\"dataless\"],\"application/vnd.flographit\":[\"gph\"],\"application/vnd.fluxtime.clip\":[\"ftc\"],\"application/vnd.framemaker\":[\"fm\",\"frame\",\"maker\",\"book\"],\"application/vnd.frogans.fnc\":[\"fnc\"],\"application/vnd.frogans.ltf\":[\"ltf\"],\"application/vnd.fsc.weblaunch\":[\"fsc\"],\"application/vnd.fujitsu.oasys\":[\"oas\"],\"application/vnd.fujitsu.oasys2\":[\"oa2\"],\"application/vnd.fujitsu.oasys3\":[\"oa3\"],\"application/vnd.fujitsu.oasysgp\":[\"fg5\"],\"application/vnd.fujitsu.oasysprs\":[\"bh2\"],\"application/vnd.fujixerox.ddd\":[\"ddd\"],\"application/vnd.fujixerox.docuworks\":[\"xdw\"],\"application/vnd.fujixerox.docuworks.binder\":[\"xbd\"],\"application/vnd.fuzzysheet\":[\"fzs\"],\"application/vnd.genomatix.tuxedo\":[\"txd\"],\"application/vnd.geogebra.file\":[\"ggb\"],\"application/vnd.geogebra.tool\":[\"ggt\"],\"application/vnd.geometry-explorer\":[\"gex\",\"gre\"],\"application/vnd.geonext\":[\"gxt\"],\"application/vnd.geoplan\":[\"g2w\"],\"application/vnd.geospace\":[\"g3w\"],\"application/vnd.gmx\":[\"gmx\"],\"application/vnd.google-apps.document\":[\"gdoc\"],\"application/vnd.google-apps.presentation\":[\"gslides\"],\"application/vnd.google-apps.spreadsheet\":[\"gsheet\"],\"application/vnd.google-earth.kml+xml\":[\"kml\"],\"application/vnd.google-earth.kmz\":[\"kmz\"],\"application/vnd.grafeq\":[\"gqf\",\"gqs\"],\"application/vnd.groove-account\":[\"gac\"],\"application/vnd.groove-help\":[\"ghf\"],\"application/vnd.groove-identity-message\":[\"gim\"],\"application/vnd.groove-injector\":[\"grv\"],\"application/vnd.groove-tool-message\":[\"gtm\"],\"application/vnd.groove-tool-template\":[\"tpl\"],\"application/vnd.groove-vcard\":[\"vcg\"],\"application/vnd.hal+xml\":[\"hal\"],\"application/vnd.handheld-entertainment+xml\":[\"zmm\"],\"application/vnd.hbci\":[\"hbci\"],\"application/vnd.hhe.lesson-player\":[\"les\"],\"application/vnd.hp-hpgl\":[\"hpgl\"],\"application/vnd.hp-hpid\":[\"hpid\"],\"application/vnd.hp-hps\":[\"hps\"],\"application/vnd.hp-jlyt\":[\"jlt\"],\"application/vnd.hp-pcl\":[\"pcl\"],\"application/vnd.hp-pclxl\":[\"pclxl\"],\"application/vnd.hydrostatix.sof-data\":[\"sfd-hdstx\"],\"application/vnd.ibm.minipay\":[\"mpy\"],\"application/vnd.ibm.modcap\":[\"afp\",\"listafp\",\"list3820\"],\"application/vnd.ibm.rights-management\":[\"irm\"],\"application/vnd.ibm.secure-container\":[\"sc\"],\"application/vnd.iccprofile\":[\"icc\",\"icm\"],\"application/vnd.igloader\":[\"igl\"],\"application/vnd.immervision-ivp\":[\"ivp\"],\"application/vnd.immervision-ivu\":[\"ivu\"],\"application/vnd.insors.igm\":[\"igm\"],\"application/vnd.intercon.formnet\":[\"xpw\",\"xpx\"],\"application/vnd.intergeo\":[\"i2g\"],\"application/vnd.intu.qbo\":[\"qbo\"],\"application/vnd.intu.qfx\":[\"qfx\"],\"application/vnd.ipunplugged.rcprofile\":[\"rcprofile\"],\"application/vnd.irepository.package+xml\":[\"irp\"],\"application/vnd.is-xpr\":[\"xpr\"],\"application/vnd.isac.fcs\":[\"fcs\"],\"application/vnd.jam\":[\"jam\"],\"application/vnd.jcp.javame.midlet-rms\":[\"rms\"],\"application/vnd.jisp\":[\"jisp\"],\"application/vnd.joost.joda-archive\":[\"joda\"],\"application/vnd.kahootz\":[\"ktz\",\"ktr\"],\"application/vnd.kde.karbon\":[\"karbon\"],\"application/vnd.kde.kchart\":[\"chrt\"],\"application/vnd.kde.kformula\":[\"kfo\"],\"application/vnd.kde.kivio\":[\"flw\"],\"application/vnd.kde.kontour\":[\"kon\"],\"application/vnd.kde.kpresenter\":[\"kpr\",\"kpt\"],\"application/vnd.kde.kspread\":[\"ksp\"],\"application/vnd.kde.kword\":[\"kwd\",\"kwt\"],\"application/vnd.kenameaapp\":[\"htke\"],\"application/vnd.kidspiration\":[\"kia\"],\"application/vnd.kinar\":[\"kne\",\"knp\"],\"application/vnd.koan\":[\"skp\",\"skd\",\"skt\",\"skm\"],\"application/vnd.kodak-descriptor\":[\"sse\"],\"application/vnd.las.las+xml\":[\"lasxml\"],\"application/vnd.llamagraphics.life-balance.desktop\":[\"lbd\"],\"application/vnd.llamagraphics.life-balance.exchange+xml\":[\"lbe\"],\"application/vnd.lotus-1-2-3\":[\"123\"],\"application/vnd.lotus-approach\":[\"apr\"],\"application/vnd.lotus-freelance\":[\"pre\"],\"application/vnd.lotus-notes\":[\"nsf\"],\"application/vnd.lotus-organizer\":[\"org\"],\"application/vnd.lotus-screencam\":[\"scm\"],\"application/vnd.lotus-wordpro\":[\"lwp\"],\"application/vnd.macports.portpkg\":[\"portpkg\"],\"application/vnd.mapbox-vector-tile\":[\"mvt\"],\"application/vnd.mcd\":[\"mcd\"],\"application/vnd.medcalcdata\":[\"mc1\"],\"application/vnd.mediastation.cdkey\":[\"cdkey\"],\"application/vnd.mfer\":[\"mwf\"],\"application/vnd.mfmp\":[\"mfm\"],\"application/vnd.micrografx.flo\":[\"flo\"],\"application/vnd.micrografx.igx\":[\"igx\"],\"application/vnd.mif\":[\"mif\"],\"application/vnd.mobius.daf\":[\"daf\"],\"application/vnd.mobius.dis\":[\"dis\"],\"application/vnd.mobius.mbk\":[\"mbk\"],\"application/vnd.mobius.mqy\":[\"mqy\"],\"application/vnd.mobius.msl\":[\"msl\"],\"application/vnd.mobius.plc\":[\"plc\"],\"application/vnd.mobius.txf\":[\"txf\"],\"application/vnd.mophun.application\":[\"mpn\"],\"application/vnd.mophun.certificate\":[\"mpc\"],\"application/vnd.mozilla.xul+xml\":[\"xul\"],\"application/vnd.ms-artgalry\":[\"cil\"],\"application/vnd.ms-cab-compressed\":[\"cab\"],\"application/vnd.ms-excel\":[\"xls\",\"xlm\",\"xla\",\"xlc\",\"xlt\",\"xlw\"],\"application/vnd.ms-excel.addin.macroenabled.12\":[\"xlam\"],\"application/vnd.ms-excel.sheet.binary.macroenabled.12\":[\"xlsb\"],\"application/vnd.ms-excel.sheet.macroenabled.12\":[\"xlsm\"],\"application/vnd.ms-excel.template.macroenabled.12\":[\"xltm\"],\"application/vnd.ms-fontobject\":[\"eot\"],\"application/vnd.ms-htmlhelp\":[\"chm\"],\"application/vnd.ms-ims\":[\"ims\"],\"application/vnd.ms-lrm\":[\"lrm\"],\"application/vnd.ms-officetheme\":[\"thmx\"],\"application/vnd.ms-outlook\":[\"msg\"],\"application/vnd.ms-pki.seccat\":[\"cat\"],\"application/vnd.ms-pki.stl\":[\"*stl\"],\"application/vnd.ms-powerpoint\":[\"ppt\",\"pps\",\"pot\"],\"application/vnd.ms-powerpoint.addin.macroenabled.12\":[\"ppam\"],\"application/vnd.ms-powerpoint.presentation.macroenabled.12\":[\"pptm\"],\"application/vnd.ms-powerpoint.slide.macroenabled.12\":[\"sldm\"],\"application/vnd.ms-powerpoint.slideshow.macroenabled.12\":[\"ppsm\"],\"application/vnd.ms-powerpoint.template.macroenabled.12\":[\"potm\"],\"application/vnd.ms-project\":[\"mpp\",\"mpt\"],\"application/vnd.ms-word.document.macroenabled.12\":[\"docm\"],\"application/vnd.ms-word.template.macroenabled.12\":[\"dotm\"],\"application/vnd.ms-works\":[\"wps\",\"wks\",\"wcm\",\"wdb\"],\"application/vnd.ms-wpl\":[\"wpl\"],\"application/vnd.ms-xpsdocument\":[\"xps\"],\"application/vnd.mseq\":[\"mseq\"],\"application/vnd.musician\":[\"mus\"],\"application/vnd.muvee.style\":[\"msty\"],\"application/vnd.mynfc\":[\"taglet\"],\"application/vnd.neurolanguage.nlu\":[\"nlu\"],\"application/vnd.nitf\":[\"ntf\",\"nitf\"],\"application/vnd.noblenet-directory\":[\"nnd\"],\"application/vnd.noblenet-sealer\":[\"nns\"],\"application/vnd.noblenet-web\":[\"nnw\"],\"application/vnd.nokia.n-gage.ac+xml\":[\"*ac\"],\"application/vnd.nokia.n-gage.data\":[\"ngdat\"],\"application/vnd.nokia.n-gage.symbian.install\":[\"n-gage\"],\"application/vnd.nokia.radio-preset\":[\"rpst\"],\"application/vnd.nokia.radio-presets\":[\"rpss\"],\"application/vnd.novadigm.edm\":[\"edm\"],\"application/vnd.novadigm.edx\":[\"edx\"],\"application/vnd.novadigm.ext\":[\"ext\"],\"application/vnd.oasis.opendocument.chart\":[\"odc\"],\"application/vnd.oasis.opendocument.chart-template\":[\"otc\"],\"application/vnd.oasis.opendocument.database\":[\"odb\"],\"application/vnd.oasis.opendocument.formula\":[\"odf\"],\"application/vnd.oasis.opendocument.formula-template\":[\"odft\"],\"application/vnd.oasis.opendocument.graphics\":[\"odg\"],\"application/vnd.oasis.opendocument.graphics-template\":[\"otg\"],\"application/vnd.oasis.opendocument.image\":[\"odi\"],\"application/vnd.oasis.opendocument.image-template\":[\"oti\"],\"application/vnd.oasis.opendocument.presentation\":[\"odp\"],\"application/vnd.oasis.opendocument.presentation-template\":[\"otp\"],\"application/vnd.oasis.opendocument.spreadsheet\":[\"ods\"],\"application/vnd.oasis.opendocument.spreadsheet-template\":[\"ots\"],\"application/vnd.oasis.opendocument.text\":[\"odt\"],\"application/vnd.oasis.opendocument.text-master\":[\"odm\"],\"application/vnd.oasis.opendocument.text-template\":[\"ott\"],\"application/vnd.oasis.opendocument.text-web\":[\"oth\"],\"application/vnd.olpc-sugar\":[\"xo\"],\"application/vnd.oma.dd2+xml\":[\"dd2\"],\"application/vnd.openblox.game+xml\":[\"obgx\"],\"application/vnd.openofficeorg.extension\":[\"oxt\"],\"application/vnd.openstreetmap.data+xml\":[\"osm\"],\"application/vnd.openxmlformats-officedocument.presentationml.presentation\":[\"pptx\"],\"application/vnd.openxmlformats-officedocument.presentationml.slide\":[\"sldx\"],\"application/vnd.openxmlformats-officedocument.presentationml.slideshow\":[\"ppsx\"],\"application/vnd.openxmlformats-officedocument.presentationml.template\":[\"potx\"],\"application/vnd.openxmlformats-officedocument.spreadsheetml.sheet\":[\"xlsx\"],\"application/vnd.openxmlformats-officedocument.spreadsheetml.template\":[\"xltx\"],\"application/vnd.openxmlformats-officedocument.wordprocessingml.document\":[\"docx\"],\"application/vnd.openxmlformats-officedocument.wordprocessingml.template\":[\"dotx\"],\"application/vnd.osgeo.mapguide.package\":[\"mgp\"],\"application/vnd.osgi.dp\":[\"dp\"],\"application/vnd.osgi.subsystem\":[\"esa\"],\"application/vnd.palm\":[\"pdb\",\"pqa\",\"oprc\"],\"application/vnd.pawaafile\":[\"paw\"],\"application/vnd.pg.format\":[\"str\"],\"application/vnd.pg.osasli\":[\"ei6\"],\"application/vnd.picsel\":[\"efif\"],\"application/vnd.pmi.widget\":[\"wg\"],\"application/vnd.pocketlearn\":[\"plf\"],\"application/vnd.powerbuilder6\":[\"pbd\"],\"application/vnd.previewsystems.box\":[\"box\"],\"application/vnd.proteus.magazine\":[\"mgz\"],\"application/vnd.publishare-delta-tree\":[\"qps\"],\"application/vnd.pvi.ptid1\":[\"ptid\"],\"application/vnd.quark.quarkxpress\":[\"qxd\",\"qxt\",\"qwd\",\"qwt\",\"qxl\",\"qxb\"],\"application/vnd.rar\":[\"rar\"],\"application/vnd.realvnc.bed\":[\"bed\"],\"application/vnd.recordare.musicxml\":[\"mxl\"],\"application/vnd.recordare.musicxml+xml\":[\"musicxml\"],\"application/vnd.rig.cryptonote\":[\"cryptonote\"],\"application/vnd.rim.cod\":[\"cod\"],\"application/vnd.rn-realmedia\":[\"rm\"],\"application/vnd.rn-realmedia-vbr\":[\"rmvb\"],\"application/vnd.route66.link66+xml\":[\"link66\"],\"application/vnd.sailingtracker.track\":[\"st\"],\"application/vnd.seemail\":[\"see\"],\"application/vnd.sema\":[\"sema\"],\"application/vnd.semd\":[\"semd\"],\"application/vnd.semf\":[\"semf\"],\"application/vnd.shana.informed.formdata\":[\"ifm\"],\"application/vnd.shana.informed.formtemplate\":[\"itp\"],\"application/vnd.shana.informed.interchange\":[\"iif\"],\"application/vnd.shana.informed.package\":[\"ipk\"],\"application/vnd.simtech-mindmapper\":[\"twd\",\"twds\"],\"application/vnd.smaf\":[\"mmf\"],\"application/vnd.smart.teacher\":[\"teacher\"],\"application/vnd.software602.filler.form+xml\":[\"fo\"],\"application/vnd.solent.sdkm+xml\":[\"sdkm\",\"sdkd\"],\"application/vnd.spotfire.dxp\":[\"dxp\"],\"application/vnd.spotfire.sfs\":[\"sfs\"],\"application/vnd.stardivision.calc\":[\"sdc\"],\"application/vnd.stardivision.draw\":[\"sda\"],\"application/vnd.stardivision.impress\":[\"sdd\"],\"application/vnd.stardivision.math\":[\"smf\"],\"application/vnd.stardivision.writer\":[\"sdw\",\"vor\"],\"application/vnd.stardivision.writer-global\":[\"sgl\"],\"application/vnd.stepmania.package\":[\"smzip\"],\"application/vnd.stepmania.stepchart\":[\"sm\"],\"application/vnd.sun.wadl+xml\":[\"wadl\"],\"application/vnd.sun.xml.calc\":[\"sxc\"],\"application/vnd.sun.xml.calc.template\":[\"stc\"],\"application/vnd.sun.xml.draw\":[\"sxd\"],\"application/vnd.sun.xml.draw.template\":[\"std\"],\"application/vnd.sun.xml.impress\":[\"sxi\"],\"application/vnd.sun.xml.impress.template\":[\"sti\"],\"application/vnd.sun.xml.math\":[\"sxm\"],\"application/vnd.sun.xml.writer\":[\"sxw\"],\"application/vnd.sun.xml.writer.global\":[\"sxg\"],\"application/vnd.sun.xml.writer.template\":[\"stw\"],\"application/vnd.sus-calendar\":[\"sus\",\"susp\"],\"application/vnd.svd\":[\"svd\"],\"application/vnd.symbian.install\":[\"sis\",\"sisx\"],\"application/vnd.syncml+xml\":[\"xsm\"],\"application/vnd.syncml.dm+wbxml\":[\"bdm\"],\"application/vnd.syncml.dm+xml\":[\"xdm\"],\"application/vnd.syncml.dmddf+xml\":[\"ddf\"],\"application/vnd.tao.intent-module-archive\":[\"tao\"],\"application/vnd.tcpdump.pcap\":[\"pcap\",\"cap\",\"dmp\"],\"application/vnd.tmobile-livetv\":[\"tmo\"],\"application/vnd.trid.tpt\":[\"tpt\"],\"application/vnd.triscape.mxs\":[\"mxs\"],\"application/vnd.trueapp\":[\"tra\"],\"application/vnd.ufdl\":[\"ufd\",\"ufdl\"],\"application/vnd.uiq.theme\":[\"utz\"],\"application/vnd.umajin\":[\"umj\"],\"application/vnd.unity\":[\"unityweb\"],\"application/vnd.uoml+xml\":[\"uoml\"],\"application/vnd.vcx\":[\"vcx\"],\"application/vnd.visio\":[\"vsd\",\"vst\",\"vss\",\"vsw\"],\"application/vnd.visionary\":[\"vis\"],\"application/vnd.vsf\":[\"vsf\"],\"application/vnd.wap.wbxml\":[\"wbxml\"],\"application/vnd.wap.wmlc\":[\"wmlc\"],\"application/vnd.wap.wmlscriptc\":[\"wmlsc\"],\"application/vnd.webturbo\":[\"wtb\"],\"application/vnd.wolfram.player\":[\"nbp\"],\"application/vnd.wordperfect\":[\"wpd\"],\"application/vnd.wqd\":[\"wqd\"],\"application/vnd.wt.stf\":[\"stf\"],\"application/vnd.xara\":[\"xar\"],\"application/vnd.xfdl\":[\"xfdl\"],\"application/vnd.yamaha.hv-dic\":[\"hvd\"],\"application/vnd.yamaha.hv-script\":[\"hvs\"],\"application/vnd.yamaha.hv-voice\":[\"hvp\"],\"application/vnd.yamaha.openscoreformat\":[\"osf\"],\"application/vnd.yamaha.openscoreformat.osfpvg+xml\":[\"osfpvg\"],\"application/vnd.yamaha.smaf-audio\":[\"saf\"],\"application/vnd.yamaha.smaf-phrase\":[\"spf\"],\"application/vnd.yellowriver-custom-menu\":[\"cmp\"],\"application/vnd.zul\":[\"zir\",\"zirz\"],\"application/vnd.zzazz.deck+xml\":[\"zaz\"],\"application/x-7z-compressed\":[\"7z\"],\"application/x-abiword\":[\"abw\"],\"application/x-ace-compressed\":[\"ace\"],\"application/x-apple-diskimage\":[\"*dmg\"],\"application/x-arj\":[\"arj\"],\"application/x-authorware-bin\":[\"aab\",\"x32\",\"u32\",\"vox\"],\"application/x-authorware-map\":[\"aam\"],\"application/x-authorware-seg\":[\"aas\"],\"application/x-bcpio\":[\"bcpio\"],\"application/x-bdoc\":[\"*bdoc\"],\"application/x-bittorrent\":[\"torrent\"],\"application/x-blorb\":[\"blb\",\"blorb\"],\"application/x-bzip\":[\"bz\"],\"application/x-bzip2\":[\"bz2\",\"boz\"],\"application/x-cbr\":[\"cbr\",\"cba\",\"cbt\",\"cbz\",\"cb7\"],\"application/x-cdlink\":[\"vcd\"],\"application/x-cfs-compressed\":[\"cfs\"],\"application/x-chat\":[\"chat\"],\"application/x-chess-pgn\":[\"pgn\"],\"application/x-chrome-extension\":[\"crx\"],\"application/x-cocoa\":[\"cco\"],\"application/x-conference\":[\"nsc\"],\"application/x-cpio\":[\"cpio\"],\"application/x-csh\":[\"csh\"],\"application/x-debian-package\":[\"*deb\",\"udeb\"],\"application/x-dgc-compressed\":[\"dgc\"],\"application/x-director\":[\"dir\",\"dcr\",\"dxr\",\"cst\",\"cct\",\"cxt\",\"w3d\",\"fgd\",\"swa\"],\"application/x-doom\":[\"wad\"],\"application/x-dtbncx+xml\":[\"ncx\"],\"application/x-dtbook+xml\":[\"dtb\"],\"application/x-dtbresource+xml\":[\"res\"],\"application/x-dvi\":[\"dvi\"],\"application/x-envoy\":[\"evy\"],\"application/x-eva\":[\"eva\"],\"application/x-font-bdf\":[\"bdf\"],\"application/x-font-ghostscript\":[\"gsf\"],\"application/x-font-linux-psf\":[\"psf\"],\"application/x-font-pcf\":[\"pcf\"],\"application/x-font-snf\":[\"snf\"],\"application/x-font-type1\":[\"pfa\",\"pfb\",\"pfm\",\"afm\"],\"application/x-freearc\":[\"arc\"],\"application/x-futuresplash\":[\"spl\"],\"application/x-gca-compressed\":[\"gca\"],\"application/x-glulx\":[\"ulx\"],\"application/x-gnumeric\":[\"gnumeric\"],\"application/x-gramps-xml\":[\"gramps\"],\"application/x-gtar\":[\"gtar\"],\"application/x-hdf\":[\"hdf\"],\"application/x-httpd-php\":[\"php\"],\"application/x-install-instructions\":[\"install\"],\"application/x-iso9660-image\":[\"*iso\"],\"application/x-iwork-keynote-sffkey\":[\"*key\"],\"application/x-iwork-numbers-sffnumbers\":[\"*numbers\"],\"application/x-iwork-pages-sffpages\":[\"*pages\"],\"application/x-java-archive-diff\":[\"jardiff\"],\"application/x-java-jnlp-file\":[\"jnlp\"],\"application/x-keepass2\":[\"kdbx\"],\"application/x-latex\":[\"latex\"],\"application/x-lua-bytecode\":[\"luac\"],\"application/x-lzh-compressed\":[\"lzh\",\"lha\"],\"application/x-makeself\":[\"run\"],\"application/x-mie\":[\"mie\"],\"application/x-mobipocket-ebook\":[\"prc\",\"mobi\"],\"application/x-ms-application\":[\"application\"],\"application/x-ms-shortcut\":[\"lnk\"],\"application/x-ms-wmd\":[\"wmd\"],\"application/x-ms-wmz\":[\"wmz\"],\"application/x-ms-xbap\":[\"xbap\"],\"application/x-msaccess\":[\"mdb\"],\"application/x-msbinder\":[\"obd\"],\"application/x-mscardfile\":[\"crd\"],\"application/x-msclip\":[\"clp\"],\"application/x-msdos-program\":[\"*exe\"],\"application/x-msdownload\":[\"*exe\",\"*dll\",\"com\",\"bat\",\"*msi\"],\"application/x-msmediaview\":[\"mvb\",\"m13\",\"m14\"],\"application/x-msmetafile\":[\"*wmf\",\"*wmz\",\"*emf\",\"emz\"],\"application/x-msmoney\":[\"mny\"],\"application/x-mspublisher\":[\"pub\"],\"application/x-msschedule\":[\"scd\"],\"application/x-msterminal\":[\"trm\"],\"application/x-mswrite\":[\"wri\"],\"application/x-netcdf\":[\"nc\",\"cdf\"],\"application/x-ns-proxy-autoconfig\":[\"pac\"],\"application/x-nzb\":[\"nzb\"],\"application/x-perl\":[\"pl\",\"pm\"],\"application/x-pilot\":[\"*prc\",\"*pdb\"],\"application/x-pkcs12\":[\"p12\",\"pfx\"],\"application/x-pkcs7-certificates\":[\"p7b\",\"spc\"],\"application/x-pkcs7-certreqresp\":[\"p7r\"],\"application/x-rar-compressed\":[\"*rar\"],\"application/x-redhat-package-manager\":[\"rpm\"],\"application/x-research-info-systems\":[\"ris\"],\"application/x-sea\":[\"sea\"],\"application/x-sh\":[\"sh\"],\"application/x-shar\":[\"shar\"],\"application/x-shockwave-flash\":[\"swf\"],\"application/x-silverlight-app\":[\"xap\"],\"application/x-sql\":[\"sql\"],\"application/x-stuffit\":[\"sit\"],\"application/x-stuffitx\":[\"sitx\"],\"application/x-subrip\":[\"srt\"],\"application/x-sv4cpio\":[\"sv4cpio\"],\"application/x-sv4crc\":[\"sv4crc\"],\"application/x-t3vm-image\":[\"t3\"],\"application/x-tads\":[\"gam\"],\"application/x-tar\":[\"tar\"],\"application/x-tcl\":[\"tcl\",\"tk\"],\"application/x-tex\":[\"tex\"],\"application/x-tex-tfm\":[\"tfm\"],\"application/x-texinfo\":[\"texinfo\",\"texi\"],\"application/x-tgif\":[\"*obj\"],\"application/x-ustar\":[\"ustar\"],\"application/x-virtualbox-hdd\":[\"hdd\"],\"application/x-virtualbox-ova\":[\"ova\"],\"application/x-virtualbox-ovf\":[\"ovf\"],\"application/x-virtualbox-vbox\":[\"vbox\"],\"application/x-virtualbox-vbox-extpack\":[\"vbox-extpack\"],\"application/x-virtualbox-vdi\":[\"vdi\"],\"application/x-virtualbox-vhd\":[\"vhd\"],\"application/x-virtualbox-vmdk\":[\"vmdk\"],\"application/x-wais-source\":[\"src\"],\"application/x-web-app-manifest+json\":[\"webapp\"],\"application/x-x509-ca-cert\":[\"der\",\"crt\",\"pem\"],\"application/x-xfig\":[\"fig\"],\"application/x-xliff+xml\":[\"*xlf\"],\"application/x-xpinstall\":[\"xpi\"],\"application/x-xz\":[\"xz\"],\"application/x-zmachine\":[\"z1\",\"z2\",\"z3\",\"z4\",\"z5\",\"z6\",\"z7\",\"z8\"],\"audio/vnd.dece.audio\":[\"uva\",\"uvva\"],\"audio/vnd.digital-winds\":[\"eol\"],\"audio/vnd.dra\":[\"dra\"],\"audio/vnd.dts\":[\"dts\"],\"audio/vnd.dts.hd\":[\"dtshd\"],\"audio/vnd.lucent.voice\":[\"lvp\"],\"audio/vnd.ms-playready.media.pya\":[\"pya\"],\"audio/vnd.nuera.ecelp4800\":[\"ecelp4800\"],\"audio/vnd.nuera.ecelp7470\":[\"ecelp7470\"],\"audio/vnd.nuera.ecelp9600\":[\"ecelp9600\"],\"audio/vnd.rip\":[\"rip\"],\"audio/x-aac\":[\"aac\"],\"audio/x-aiff\":[\"aif\",\"aiff\",\"aifc\"],\"audio/x-caf\":[\"caf\"],\"audio/x-flac\":[\"flac\"],\"audio/x-m4a\":[\"*m4a\"],\"audio/x-matroska\":[\"mka\"],\"audio/x-mpegurl\":[\"m3u\"],\"audio/x-ms-wax\":[\"wax\"],\"audio/x-ms-wma\":[\"wma\"],\"audio/x-pn-realaudio\":[\"ram\",\"ra\"],\"audio/x-pn-realaudio-plugin\":[\"rmp\"],\"audio/x-realaudio\":[\"*ra\"],\"audio/x-wav\":[\"*wav\"],\"chemical/x-cdx\":[\"cdx\"],\"chemical/x-cif\":[\"cif\"],\"chemical/x-cmdf\":[\"cmdf\"],\"chemical/x-cml\":[\"cml\"],\"chemical/x-csml\":[\"csml\"],\"chemical/x-xyz\":[\"xyz\"],\"image/prs.btif\":[\"btif\"],\"image/prs.pti\":[\"pti\"],\"image/vnd.adobe.photoshop\":[\"psd\"],\"image/vnd.airzip.accelerator.azv\":[\"azv\"],\"image/vnd.dece.graphic\":[\"uvi\",\"uvvi\",\"uvg\",\"uvvg\"],\"image/vnd.djvu\":[\"djvu\",\"djv\"],\"image/vnd.dvb.subtitle\":[\"*su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= {\"application/andrew-inset\":[\"ez\"],\"application/applixware\":[\"aw\"],\"application/atom+xml\":[\"atom\"],\"application/atomcat+xml\":[\"atomcat\"],\"application/atomdeleted+xml\":[\"atomdeleted\"],\"application/atomsvc+xml\":[\"atomsvc\"],\"application/atsc-dwd+xml\":[\"dwd\"],\"application/atsc-held+xml\":[\"held\"],\"application/atsc-rsat+xml\":[\"rsat\"],\"application/bdoc\":[\"bdoc\"],\"application/calendar+xml\":[\"xcs\"],\"application/ccxml+xml\":[\"ccxml\"],\"application/cdfx+xml\":[\"cdfx\"],\"application/cdmi-capability\":[\"cdmia\"],\"application/cdmi-container\":[\"cdmic\"],\"application/cdmi-domain\":[\"cdmid\"],\"application/cdmi-object\":[\"cdmio\"],\"application/cdmi-queue\":[\"cdmiq\"],\"application/cu-seeme\":[\"cu\"],\"application/dash+xml\":[\"mpd\"],\"application/davmount+xml\":[\"davmount\"],\"application/docbook+xml\":[\"dbk\"],\"application/dssc+der\":[\"dssc\"],\"application/dssc+xml\":[\"xdssc\"],\"application/ecmascript\":[\"es\",\"ecma\"],\"application/emma+xml\":[\"emma\"],\"application/emotionml+xml\":[\"emotionml\"],\"application/epub+zip\":[\"epub\"],\"application/exi\":[\"exi\"],\"application/express\":[\"exp\"],\"application/fdt+xml\":[\"fdt\"],\"application/font-tdpfr\":[\"pfr\"],\"application/geo+json\":[\"geojson\"],\"application/gml+xml\":[\"gml\"],\"application/gpx+xml\":[\"gpx\"],\"application/gxf\":[\"gxf\"],\"application/gzip\":[\"gz\"],\"application/hjson\":[\"hjson\"],\"application/hyperstudio\":[\"stk\"],\"application/inkml+xml\":[\"ink\",\"inkml\"],\"application/ipfix\":[\"ipfix\"],\"application/its+xml\":[\"its\"],\"application/java-archive\":[\"jar\",\"war\",\"ear\"],\"application/java-serialized-object\":[\"ser\"],\"application/java-vm\":[\"class\"],\"application/javascript\":[\"js\",\"mjs\"],\"application/json\":[\"json\",\"map\"],\"application/json5\":[\"json5\"],\"application/jsonml+json\":[\"jsonml\"],\"application/ld+json\":[\"jsonld\"],\"application/lgr+xml\":[\"lgr\"],\"application/lost+xml\":[\"lostxml\"],\"application/mac-binhex40\":[\"hqx\"],\"application/mac-compactpro\":[\"cpt\"],\"application/mads+xml\":[\"mads\"],\"application/manifest+json\":[\"webmanifest\"],\"application/marc\":[\"mrc\"],\"application/marcxml+xml\":[\"mrcx\"],\"application/mathematica\":[\"ma\",\"nb\",\"mb\"],\"application/mathml+xml\":[\"mathml\"],\"application/mbox\":[\"mbox\"],\"application/mediaservercontrol+xml\":[\"mscml\"],\"application/metalink+xml\":[\"metalink\"],\"application/metalink4+xml\":[\"meta4\"],\"application/mets+xml\":[\"mets\"],\"application/mmt-aei+xml\":[\"maei\"],\"application/mmt-usd+xml\":[\"musd\"],\"application/mods+xml\":[\"mods\"],\"application/mp21\":[\"m21\",\"mp21\"],\"application/mp4\":[\"mp4s\",\"m4p\"],\"application/msword\":[\"doc\",\"dot\"],\"application/mxf\":[\"mxf\"],\"application/n-quads\":[\"nq\"],\"application/n-triples\":[\"nt\"],\"application/node\":[\"cjs\"],\"application/octet-stream\":[\"bin\",\"dms\",\"lrf\",\"mar\",\"so\",\"dist\",\"distz\",\"pkg\",\"bpk\",\"dump\",\"elc\",\"deploy\",\"exe\",\"dll\",\"deb\",\"dmg\",\"iso\",\"img\",\"msi\",\"msp\",\"msm\",\"buffer\"],\"application/oda\":[\"oda\"],\"application/oebps-package+xml\":[\"opf\"],\"application/ogg\":[\"ogx\"],\"application/omdoc+xml\":[\"omdoc\"],\"application/onenote\":[\"onetoc\",\"onetoc2\",\"onetmp\",\"onepkg\"],\"application/oxps\":[\"oxps\"],\"application/p2p-overlay+xml\":[\"relo\"],\"application/patch-ops-error+xml\":[\"xer\"],\"application/pdf\":[\"pdf\"],\"application/pgp-encrypted\":[\"pgp\"],\"application/pgp-signature\":[\"asc\",\"sig\"],\"application/pics-rules\":[\"prf\"],\"application/pkcs10\":[\"p10\"],\"application/pkcs7-mime\":[\"p7m\",\"p7c\"],\"application/pkcs7-signature\":[\"p7s\"],\"application/pkcs8\":[\"p8\"],\"application/pkix-attr-cert\":[\"ac\"],\"application/pkix-cert\":[\"cer\"],\"application/pkix-crl\":[\"crl\"],\"application/pkix-pkipath\":[\"pkipath\"],\"application/pkixcmp\":[\"pki\"],\"application/pls+xml\":[\"pls\"],\"application/postscript\":[\"ai\",\"eps\",\"ps\"],\"application/provenance+xml\":[\"provx\"],\"application/pskc+xml\":[\"pskcxml\"],\"application/raml+yaml\":[\"raml\"],\"application/rdf+xml\":[\"rdf\",\"owl\"],\"application/reginfo+xml\":[\"rif\"],\"application/relax-ng-compact-syntax\":[\"rnc\"],\"application/resource-lists+xml\":[\"rl\"],\"application/resource-lists-diff+xml\":[\"rld\"],\"application/rls-services+xml\":[\"rs\"],\"application/route-apd+xml\":[\"rapd\"],\"application/route-s-tsid+xml\":[\"sls\"],\"application/route-usd+xml\":[\"rusd\"],\"application/rpki-ghostbusters\":[\"gbr\"],\"application/rpki-manifest\":[\"mft\"],\"application/rpki-roa\":[\"roa\"],\"application/rsd+xml\":[\"rsd\"],\"application/rss+xml\":[\"rss\"],\"application/rtf\":[\"rtf\"],\"application/sbml+xml\":[\"sbml\"],\"application/scvp-cv-request\":[\"scq\"],\"application/scvp-cv-response\":[\"scs\"],\"application/scvp-vp-request\":[\"spq\"],\"application/scvp-vp-response\":[\"spp\"],\"application/sdp\":[\"sdp\"],\"application/senml+xml\":[\"senmlx\"],\"application/sensml+xml\":[\"sensmlx\"],\"application/set-payment-initiation\":[\"setpay\"],\"application/set-registration-initiation\":[\"setreg\"],\"application/shf+xml\":[\"shf\"],\"application/sieve\":[\"siv\",\"sieve\"],\"application/smil+xml\":[\"smi\",\"smil\"],\"application/sparql-query\":[\"rq\"],\"application/sparql-results+xml\":[\"srx\"],\"application/srgs\":[\"gram\"],\"application/srgs+xml\":[\"grxml\"],\"application/sru+xml\":[\"sru\"],\"application/ssdl+xml\":[\"ssdl\"],\"application/ssml+xml\":[\"ssml\"],\"application/swid+xml\":[\"swidtag\"],\"application/tei+xml\":[\"tei\",\"teicorpus\"],\"application/thraud+xml\":[\"tfi\"],\"application/timestamped-data\":[\"tsd\"],\"application/toml\":[\"toml\"],\"application/trig\":[\"trig\"],\"application/ttml+xml\":[\"ttml\"],\"application/ubjson\":[\"ubj\"],\"application/urc-ressheet+xml\":[\"rsheet\"],\"application/urc-targetdesc+xml\":[\"td\"],\"application/voicexml+xml\":[\"vxml\"],\"application/wasm\":[\"wasm\"],\"application/widget\":[\"wgt\"],\"application/winhlp\":[\"hlp\"],\"application/wsdl+xml\":[\"wsdl\"],\"application/wspolicy+xml\":[\"wspolicy\"],\"application/xaml+xml\":[\"xaml\"],\"application/xcap-att+xml\":[\"xav\"],\"application/xcap-caps+xml\":[\"xca\"],\"application/xcap-diff+xml\":[\"xdf\"],\"application/xcap-el+xml\":[\"xel\"],\"application/xcap-ns+xml\":[\"xns\"],\"application/xenc+xml\":[\"xenc\"],\"application/xhtml+xml\":[\"xhtml\",\"xht\"],\"application/xliff+xml\":[\"xlf\"],\"application/xml\":[\"xml\",\"xsl\",\"xsd\",\"rng\"],\"application/xml-dtd\":[\"dtd\"],\"application/xop+xml\":[\"xop\"],\"application/xproc+xml\":[\"xpl\"],\"application/xslt+xml\":[\"*xsl\",\"xslt\"],\"application/xspf+xml\":[\"xspf\"],\"application/xv+xml\":[\"mxml\",\"xhvml\",\"xvml\",\"xvm\"],\"application/yang\":[\"yang\"],\"application/yin+xml\":[\"yin\"],\"application/zip\":[\"zip\"],\"audio/3gpp\":[\"*3gpp\"],\"audio/adpcm\":[\"adp\"],\"audio/amr\":[\"amr\"],\"audio/basic\":[\"au\",\"snd\"],\"audio/midi\":[\"mid\",\"midi\",\"kar\",\"rmi\"],\"audio/mobile-xmf\":[\"mxmf\"],\"audio/mp3\":[\"*mp3\"],\"audio/mp4\":[\"m4a\",\"mp4a\"],\"audio/mpeg\":[\"mpga\",\"mp2\",\"mp2a\",\"mp3\",\"m2a\",\"m3a\"],\"audio/ogg\":[\"oga\",\"ogg\",\"spx\",\"opus\"],\"audio/s3m\":[\"s3m\"],\"audio/silk\":[\"sil\"],\"audio/wav\":[\"wav\"],\"audio/wave\":[\"*wav\"],\"audio/webm\":[\"weba\"],\"audio/xm\":[\"xm\"],\"font/collection\":[\"ttc\"],\"font/otf\":[\"otf\"],\"font/ttf\":[\"ttf\"],\"font/woff\":[\"woff\"],\"font/woff2\":[\"woff2\"],\"image/aces\":[\"exr\"],\"image/apng\":[\"apng\"],\"image/avif\":[\"avif\"],\"image/bmp\":[\"bmp\"],\"image/cgm\":[\"cgm\"],\"image/dicom-rle\":[\"drle\"],\"image/emf\":[\"emf\"],\"image/fits\":[\"fits\"],\"image/g3fax\":[\"g3\"],\"image/gif\":[\"gif\"],\"image/heic\":[\"heic\"],\"image/heic-sequence\":[\"heics\"],\"image/heif\":[\"heif\"],\"image/heif-sequence\":[\"heifs\"],\"image/hej2k\":[\"hej2\"],\"image/hsj2\":[\"hsj2\"],\"image/ief\":[\"ief\"],\"image/jls\":[\"jls\"],\"image/jp2\":[\"jp2\",\"jpg2\"],\"image/jpeg\":[\"jpeg\",\"jpg\",\"jpe\"],\"image/jph\":[\"jph\"],\"image/jphc\":[\"jhc\"],\"image/jpm\":[\"jpm\"],\"image/jpx\":[\"jpx\",\"jpf\"],\"image/jxr\":[\"jxr\"],\"image/jxra\":[\"jxra\"],\"image/jxrs\":[\"jxrs\"],\"image/jxs\":[\"jxs\"],\"image/jxsc\":[\"jxsc\"],\"image/jxsi\":[\"jxsi\"],\"image/jxss\":[\"jxss\"],\"image/ktx\":[\"ktx\"],\"image/ktx2\":[\"ktx2\"],\"image/png\":[\"png\"],\"image/sgi\":[\"sgi\"],\"image/svg+xml\":[\"svg\",\"svgz\"],\"image/t38\":[\"t38\"],\"image/tiff\":[\"tif\",\"tiff\"],\"image/tiff-fx\":[\"tfx\"],\"image/webp\":[\"webp\"],\"image/wmf\":[\"wmf\"],\"message/disposition-notification\":[\"disposition-notification\"],\"message/global\":[\"u8msg\"],\"message/global-delivery-status\":[\"u8dsn\"],\"message/global-disposition-notification\":[\"u8mdn\"],\"message/global-headers\":[\"u8hdr\"],\"message/rfc822\":[\"eml\",\"mime\"],\"model/3mf\":[\"3mf\"],\"model/gltf+json\":[\"gltf\"],\"model/gltf-binary\":[\"glb\"],\"model/iges\":[\"igs\",\"iges\"],\"model/mesh\":[\"msh\",\"mesh\",\"silo\"],\"model/mtl\":[\"mtl\"],\"model/obj\":[\"obj\"],\"model/step+xml\":[\"stpx\"],\"model/step+zip\":[\"stpz\"],\"model/step-xml+zip\":[\"stpxz\"],\"model/stl\":[\"stl\"],\"model/vrml\":[\"wrl\",\"vrml\"],\"model/x3d+binary\":[\"*x3db\",\"x3dbz\"],\"model/x3d+fastinfoset\":[\"x3db\"],\"model/x3d+vrml\":[\"*x3dv\",\"x3dvz\"],\"model/x3d+xml\":[\"x3d\",\"x3dz\"],\"model/x3d-vrml\":[\"x3dv\"],\"text/cache-manifest\":[\"appcache\",\"manifest\"],\"text/calendar\":[\"ics\",\"ifb\"],\"text/coffeescript\":[\"coffee\",\"litcoffee\"],\"text/css\":[\"css\"],\"text/csv\":[\"csv\"],\"text/html\":[\"html\",\"htm\",\"shtml\"],\"text/jade\":[\"jade\"],\"text/jsx\":[\"jsx\"],\"text/less\":[\"less\"],\"text/markdown\":[\"markdown\",\"md\"],\"text/mathml\":[\"mml\"],\"text/mdx\":[\"mdx\"],\"text/n3\":[\"n3\"],\"text/plain\":[\"txt\",\"text\",\"conf\",\"def\",\"list\",\"log\",\"in\",\"ini\"],\"text/richtext\":[\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var(--jp-shadow-penumbra-color), + 0 1px 5px 0 var(--jp-shadow-ambient-color); + --jp-elevation-z4: + 0 2px 4px -1px var(--jp-shadow-umbra-color), + 0 4px 5px 0 var(--jp-shadow-penumbra-color), + 0 1px 10px 0 var(--jp-shadow-ambient-color); + --jp-elevation-z6: + 0 3px 5px -1px var(--jp-shadow-umbra-color), + 0 6px 10px 0 var(--jp-shadow-penumbra-color), + 0 1px 18px 0 var(--jp-shadow-ambient-color); + --jp-elevation-z8: + 0 5px 5px -3px var(--jp-shadow-umbra-color), + 0 8px 10px 1px var(--jp-shadow-penumbra-color), + 0 3px 14px 2px var(--jp-shadow-ambient-color); + --jp-elevation-z12: + 0 7px 8px -4px var(--jp-shadow-umbra-color), + 0 12px 17px 2px var(--jp-shadow-penumbra-color), + 0 5px 22px 4px var(--jp-shadow-ambient-color); + --jp-elevation-z16: + 0 8px 10px -5px var(--jp-shadow-umbra-color), + 0 16px 24px 2px var(--jp-shadow-penumbra-color), + 0 6px 30px 5px var(--jp-shadow-ambient-color); + --jp-elevation-z20: + 0 10px 13px -6px var(--jp-shadow-umbra-color), + 0 20px 31px 3px var(--jp-shadow-penumbra-color), + 0 8px 38px 7px var(--jp-shadow-ambient-color); + --jp-elevation-z24: + 0 11px 15px -7px var(--jp-shadow-umbra-color), + 0 24px 38px 3px var(--jp-shadow-penumbra-color), + 0 9px 46px 8px var(--jp-shadow-ambient-color); + --jp-border-width: 1px; + --jp-border-color0: var(--md-grey-400); + --jp-border-color1: var(--md-grey-400); + --jp-border-color2: var(--md-grey-300); + --jp-border-color3: var(--md-grey-200); + --jp-inverse-border-color: var(--md-grey-600); + --jp-border-radius: 2px; + --jp-ui-font-scale-factor: 1.2; + --jp-ui-font-size0: 0.83333em; + --jp-ui-font-size1: 13px; + --jp-ui-font-size2: 1.2em; + --jp-ui-font-size3: 1.44em; + --jp-ui-font-family: + system-ui, + -apple-system, + blinkmacsystemfont, + "Segoe UI", + helvetica, + arial, + sans-serif, + "Apple Color Emoji", + "Segoe UI Emoji", + "Segoe UI Symbol"; + --jp-ui-font-color0: rgba(0, 0, 0, 1); + --jp-ui-font-color1: rgba(0, 0, 0, 0.87); + --jp-ui-font-color2: rgba(0, 0, 0, 0.54); + --jp-ui-font-color3: rgba(0, 0, 0, 0.38); + --jp-ui-inverse-font-color0: rgba(255, 255, 255, 1); + --jp-ui-inverse-font-color1: rgba(255, 255, 255, 1); + --jp-ui-inverse-font-color2: rgba(255, 255, 255, 0.7); + --jp-ui-inverse-font-color3: rgba(255, 255, 255, 0.5); + --jp-content-line-height: 1.6; + --jp-content-font-scale-factor: 1.2; + --jp-content-font-size0: 0.83333em; + --jp-content-font-size1: 14px; + --jp-content-font-size2: 1.2em; + --jp-content-font-size3: 1.44em; + --jp-content-font-size4: 1.728em; + --jp-content-font-size5: 2.0736em; + --jp-content-presentation-font-size1: 17px; + --jp-content-heading-line-height: 1; + --jp-content-heading-margin-top: 1.2em; + --jp-content-heading-margin-bottom: 0.8em; + --jp-content-heading-font-weight: 500; + --jp-content-font-color0: rgba(0, 0, 0, 1); + --jp-content-font-color1: rgba(0, 0, 0, 0.87); + --jp-content-font-color2: rgba(0, 0, 0, 0.54); + --jp-content-font-color3: rgba(0, 0, 0, 0.38); + --jp-content-link-color: var(--md-blue-900); + --jp-content-font-family: + system-ui, + -apple-system, + blinkmacsystemfont, + "Segoe UI", + helvetica, + arial, + sans-serif, + "Apple Color Emoji", + "Segoe UI Emoji", + "Segoe UI Symbol"; + --jp-code-font-size: 13px; + --jp-code-line-height: 1.3077; + --jp-code-padding: 5px; + --jp-code-font-family-default: + menlo, + consolas, + "DejaVu Sans Mono", + monospace; + --jp-code-font-family: var(--jp-code-font-family-default); + --jp-code-presentation-font-size: 16px; + --jp-code-cursor-width0: 1.4px; + --jp-code-cursor-width1: 2px; + --jp-code-cursor-width2: 4px; + --jp-layout-color0: white; + --jp-layout-color1: white; + --jp-layout-color2: var(--md-grey-200); + --jp-layout-color3: var(--md-grey-400); + --jp-layout-color4: var(--md-grey-600); + --jp-inverse-layout-color0: #111; + --jp-inverse-layout-color1: var(--md-grey-900); + --jp-inverse-layout-color2: var(--md-grey-800); + --jp-inverse-layout-color3: var(--md-grey-700); + --jp-inverse-layout-color4: var(--md-grey-600); + --jp-brand-color0: var(--md-blue-900); + --jp-brand-color1: var(--md-blue-700); + --jp-brand-color2: var(--md-blue-300); + --jp-brand-color3: var(--md-blue-100); + --jp-brand-color4: var(--md-blue-50); + --jp-accent-color0: var(--md-green-900); + --jp-accent-color1: var(--md-green-700); + --jp-accent-color2: var(--md-green-300); + --jp-accent-color3: var(--md-green-100); + --jp-warn-color0: var(--md-orange-900); + --jp-warn-color1: var(--md-orange-700); + --jp-warn-color2: var(--md-orange-300); + --jp-warn-color3: var(--md-orange-100); + --jp-error-color0: var(--md-red-900); + --jp-error-color1: var(--md-red-700); + --jp-error-color2: var(--md-red-300); + --jp-error-color3: var(--md-red-100); + --jp-success-color0: var(--md-green-900); + --jp-success-color1: var(--md-green-700); + --jp-success-color2: var(--md-green-300); + --jp-success-color3: var(--md-green-100); + --jp-info-color0: var(--md-cyan-900); + --jp-info-color1: var(--md-cyan-700); + --jp-info-color2: var(--md-cyan-300); + --jp-info-color3: var(--md-cyan-100); + --jp-cell-padding: 5px; + --jp-cell-collapser-width: 8px; + --jp-cell-collapser-min-height: 20px; + --jp-cell-collapser-not-active-hover-opacity: 0.6; + --jp-cell-editor-background: var(--md-grey-100); + --jp-cell-editor-border-color: var(--md-grey-300); + --jp-cell-editor-box-shadow: inset 0 0 2px var(--md-blue-300); + --jp-cell-editor-active-background: var(--jp-layout-color0); + --jp-cell-editor-active-border-color: var(--jp-brand-color1); + --jp-cell-prompt-width: 64px; + --jp-cell-prompt-font-family: var(--jp-code-font-family-default); + --jp-cell-prompt-letter-spacing: 0; + --jp-cell-prompt-opacity: 1; + --jp-cell-prompt-not-active-opacity: 0.5; + --jp-cell-prompt-not-active-font-color: var(--md-grey-700); + --jp-cell-inprompt-font-color: #307fc1; + --jp-cell-outprompt-font-color: #bf5b3d; + --jp-notebook-padding: 10px; + --jp-notebook-select-background: var(--jp-layout-color1); + --jp-notebook-multiselected-color: var(--md-blue-50); + --jp-notebook-scroll-padding: calc( 100% - var(--jp-code-font-size) * var(--jp-code-line-height) - var(--jp-code-padding) - var(--jp-cell-padding) - 1px ); + --jp-rendermime-error-background: #fdd; + --jp-rendermime-table-row-background: var(--md-grey-100); + --jp-rendermime-table-row-hover-background: var(--md-light-blue-50); + --jp-dialog-background: rgba(0, 0, 0, 0.25); + --jp-console-padding: 10px; + --jp-toolbar-border-color: var(--jp-border-color1); + --jp-toolbar-micro-height: 8px; + --jp-toolbar-background: var(--jp-layout-color1); + --jp-toolbar-box-shadow: 0 0 2px 0 rgba(0, 0, 0, 0.24); + --jp-toolbar-header-margin: 4px 4px 0 4px; + --jp-toolbar-active-background: var(--md-grey-300); + --jp-statusbar-height: 24px; + --jp-input-box-shadow: inset 0 0 2px var(--md-blue-300); + --jp-input-active-background: var(--jp-layout-color1); + --jp-input-hover-background: var(--jp-layout-color1); + --jp-input-background: var(--md-grey-100); + --jp-input-border-color: var(--jp-inverse-border-color); + --jp-input-active-border-color: var(--jp-brand-color1); + --jp-input-active-box-shadow-color: rgba(19, 124, 189, 0.3); + --jp-editor-selected-background: #d9d9d9; + --jp-editor-selected-focused-background: #d7d4f0; + --jp-editor-cursor-color: var(--jp-ui-font-color0); + --jp-mirror-editor-keyword-color: #008000; + --jp-mirror-editor-atom-color: #88f; + --jp-mirror-editor-number-color: #080; + --jp-mirror-editor-def-color: #00f; + --jp-mirror-editor-variable-color: var(--md-grey-900); + --jp-mirror-editor-variable-2-color: rgb(0, 54, 109); + --jp-mirror-editor-variable-3-color: #085; + --jp-mirror-editor-punctuation-color: #05a; + --jp-mirror-editor-property-color: #05a; + --jp-mirror-editor-operator-color: #a2f; + --jp-mirror-editor-comment-color: #408080; + --jp-mirror-editor-string-color: #ba2121; + --jp-mirror-editor-string-2-color: #708; + --jp-mirror-editor-meta-color: #a2f; + --jp-mirror-editor-qualifier-color: #555; + --jp-mirror-editor-builtin-color: #008000; + --jp-mirror-editor-bracket-color: #997; + --jp-mirror-editor-tag-color: #170; + --jp-mirror-editor-attribute-color: #00c; + --jp-mirror-editor-header-color: blue; + --jp-mirror-editor-quote-color: #090; + --jp-mirror-editor-link-color: #00c; + --jp-mirror-editor-error-color: #f00; + --jp-mirror-editor-hr-color: #999; + --jp-collaborator-color1: #ffad8e; + --jp-collaborator-color2: #dac83d; + --jp-collaborator-color3: #72dd76; + --jp-collaborator-color4: #00e4d0; + --jp-collaborator-color5: #45d4ff; + --jp-collaborator-color6: #e2b1ff; + --jp-collaborator-color7: #ff9de6; + --jp-vega-background: white; + --jp-sidebar-min-width: 250px; + --jp-search-toggle-off-opacity: 0.5; + --jp-search-toggle-hover-opacity: 0.8; + --jp-search-toggle-on-opacity: 1; + --jp-search-selected-match-background-color: rgb(245, 200, 0); + --jp-search-selected-match-color: black; + --jp-search-unselected-match-background-color: var( --jp-inverse-layout-color0 ); + --jp-search-unselected-match-color: var(--jp-ui-inverse-font-color0); + --jp-icon-contrast-color0: var(--md-purple-600); + --jp-icon-contrast-color1: var(--md-green-600); + --jp-icon-contrast-color2: var(--md-pink-600); + --jp-icon-contrast-color3: var(--md-blue-600); + --jp-accept-color-normal: var(--md-blue-700); + --jp-accept-color-hover: var(--md-blue-800); + --jp-accept-color-active: var(--md-blue-900); + --jp-warn-color-normal: var(--md-red-700); + --jp-warn-color-hover: var(--md-red-800); + --jp-warn-color-active: var(--md-red-900); + --jp-reject-color-normal: var(--md-grey-600); + --jp-reject-color-hover: var(--md-grey-700); + --jp-reject-color-active: var(--md-grey-800); + --jp-jupyter-icon-color: #f37626; + --jp-notebook-icon-color: #f37626; + --jp-json-icon-color: var(--md-orange-700); + --jp-console-icon-background-color: var(--md-blue-700); + --jp-console-icon-color: white; + --jp-terminal-icon-background-color: var(--md-grey-800); + --jp-terminal-icon-color: var(--md-grey-200); + --jp-text-editor-icon-color: var(--md-grey-700); + --jp-inspector-icon-color: var(--md-grey-700); + --jp-switch-color: var(--md-grey-400); + --jp-switch-true-position-color: var(--md-orange-900); +} +tt, +code, +kbd, +samp, +pre { + font-family: var(--jp-code-font-family); + font-size: var(--jp-code-font-size); + line-height: var(--jp-code-line-height); +} +.jupyter-widgets.widget-tab > .p-TabBar, +.jupyter-widgets.jupyter-widget-tab > .p-TabBar, +.jupyter-widgets.jupyter-widget-tab > .lm-TabBar { + display: flex; + -webkit-user-select: none; + -moz-user-select: none; + -ms-user-select: none; + user-select: none; +} +.jupyter-widgets.widget-tab > .p-TabBar[data-orientation=horizontal], +.jupyter-widgets.jupyter-widget-tab > .p-TabBar[data-orientation=horizontal], +.jupyter-widgets.jupyter-widget-tab > .lm-TabBar[data-orientation=horizontal] { + flex-direction: row; +} +.jupyter-widgets.widget-tab > .p-TabBar[data-orientation=vertical], +.jupyter-widgets.jupyter-widget-tab > .p-TabBar[data-orientation=vertical], +.jupyter-widgets.jupyter-widget-tab > .lm-TabBar[data-orientation=vertical] { + flex-direction: column; +} +.jupyter-widgets.widget-tab > .p-TabBar > .p-TabBar-content, +.jupyter-widgets.jupyter-widget-tab > .p-TabBar > .p-TabBar-content, +.jupyter-widgets.jupyter-widget-tab > .lm-TabBar > .lm-TabBar-content { + margin: 0; + padding: 0; + display: flex; + flex: 1 1 auto; + list-style-type: none; +} +.jupyter-widgets.widget-tab > .p-TabBar[data-orientation=horizontal] > .p-TabBar-content, +.jupyter-widgets.jupyter-widget-tab > .p-TabBar[data-orientation=horizontal] > .p-TabBar-content, +.jupyter-widgets.jupyter-widget-tab > .lm-TabBar[data-orientation=horizontal] > .lm-TabBar-content { + flex-direction: row; +} +.jupyter-widgets.widget-tab > .p-TabBar[data-orientation=vertical] > .p-TabBar-content, +.jupyter-widgets.jupyter-widget-tab > .p-TabBar[data-orientation=vertical] > .p-TabBar-content, +.jupyter-widgets.jupyter-widget-tab > .lm-TabBar[data-orientation=vertical] > .lm-TabBar-content { + flex-direction: column; +} +.jupyter-widgets.widget-tab > .p-TabBar .p-TabBar-tab, +.jupyter-widgets.jupyter-widget-tab > .p-TabBar .p-TabBar-tab, +.jupyter-widgets.jupyter-widget-tab > .lm-TabBar .lm-TabBar-tab { + display: flex; + flex-direction: row; + box-sizing: border-box; + overflow: hidden; +} +.jupyter-widgets.widget-tab > .p-TabBar .p-TabBar-tabIcon, +.jupyter-widgets.widget-tab > .p-TabBar .p-TabBar-tabCloseIcon, +.jupyter-widgets.jupyter-widget-tab > .p-TabBar .p-TabBar-tabIcon, +.jupyter-widgets.jupyter-widget-tab > .p-TabBar .p-TabBar-tabCloseIcon, +.jupyter-widgets.jupyter-widget-tab > .lm-TabBar .lm-TabBar-tabIcon, +.jupyter-widgets.jupyter-widget-tab > .lm-TabBar .lm-TabBar-tabCloseIcon { + flex: 0 0 auto; +} +.jupyter-widgets.widget-tab > .p-TabBar .p-TabBar-tabLabel, +.jupyter-widgets.jupyter-widget-tab > .p-TabBar .p-TabBar-tabLabel, +.jupyter-widgets.jupyter-widget-tab > .lm-TabBar .lm-TabBar-tabLabel { + flex: 1 1 auto; + overflow: hidden; + white-space: nowrap; +} +.jupyter-widgets.widget-tab > .p-TabBar .p-TabBar-tab.p-mod-hidden, +.jupyter-widgets.jupyter-widget-tab > .p-TabBar .p-TabBar-tab.p-mod-hidden, +.jupyter-widgets.jupyter-widget-tab > .lm-TabBar .lm-TabBar-tab.lm-mod-hidden { + display: none !important; +} +.jupyter-widgets.widget-tab > .p-TabBar.p-mod-dragging .p-TabBar-tab, +.jupyter-widgets.jupyter-widget-tab > .p-TabBar.p-mod-dragging .p-TabBar-tab, +.jupyter-widgets.jupyter-widget-tab > .lm-TabBar.lm-mod-dragging .lm-TabBar-tab { + position: relative; +} +.jupyter-widgets.widget-tab > .p-TabBar.p-mod-dragging[data-orientation=horizontal] .p-TabBar-tab, +.jupyter-widgets.jupyter-widget-tab > .p-TabBar.p-mod-dragging[data-orientation=horizontal] .p-TabBar-tab, +.jupyter-widgets.jupyter-widget-tab > .lm-TabBar.lm-mod-dragging[data-orientation=horizontal] .lm-TabBar-tab { + left: 0; + transition: left 150ms ease; +} +.jupyter-widgets.widget-tab > .p-TabBar.p-mod-dragging[data-orientation=vertical] .p-TabBar-tab, +.jupyter-widgets.jupyter-widget-tab > .p-TabBar.p-mod-dragging[data-orientation=vertical] .p-TabBar-tab, +.jupyter-widgets.jupyter-widget-tab > .lm-TabBar.lm-mod-dragging[data-orientation=vertical] .lm-TabBar-tab { + top: 0; + transition: top 150ms ease; +} +.jupyter-widgets.widget-tab > .p-TabBar.p-mod-dragging .p-TabBar-tab.p-mod-dragging, +.jupyter-widgets.jupyter-widget-tab > .p-TabBar.p-mod-dragging .p-TabBar-tab.p-mod-dragging, +.jupyter-widgets.jupyter-widget-tab > .lm-TabBar.lm-mod-dragging .lm-TabBar-tab.lm-mod-dragging { + transition: none; +} +.widget-slider, +.jupyter-widget-slider { +} +.widget-slider .noUi-target, +.jupyter-widget-slider .noUi-target, +.widget-slider .noUi-target *, +.jupyter-widget-slider .noUi-target * { + -webkit-touch-callout: none; + -webkit-tap-highlight-color: rgba(0, 0, 0, 0); + -webkit-user-select: none; + -ms-touch-action: none; + touch-action: none; + -ms-user-select: none; + -moz-user-select: none; + user-select: none; + -moz-box-sizing: border-box; + box-sizing: border-box; +} +.widget-slider .noUi-target, +.jupyter-widget-slider .noUi-target { + position: relative; +} +.widget-slider .noUi-base, +.jupyter-widget-slider .noUi-base, +.widget-slider .noUi-connects, +.jupyter-widget-slider .noUi-connects { + width: 100%; + height: 100%; + position: relative; + z-index: 1; +} +.widget-slider .noUi-connects, +.jupyter-widget-slider .noUi-connects { + overflow: hidden; + z-index: 0; +} +.widget-slider .noUi-connect, +.jupyter-widget-slider .noUi-connect, +.widget-slider .noUi-origin, +.jupyter-widget-slider .noUi-origin { + will-change: transform; + position: absolute; + z-index: 1; + top: 0; + right: 0; + -ms-transform-origin: 0 0; + -webkit-transform-origin: 0 0; + -webkit-transform-style: preserve-3d; + transform-origin: 0 0; + transform-style: flat; +} +.widget-slider .noUi-connect, +.jupyter-widget-slider .noUi-connect { + height: 100%; + width: 100%; +} +.widget-slider .noUi-origin, +.jupyter-widget-slider .noUi-origin { + height: 10%; + width: 10%; +} +.widget-slider .noUi-txt-dir-rtl.noUi-horizontal .noUi-origin, +.jupyter-widget-slider .noUi-txt-dir-rtl.noUi-horizontal .noUi-origin { + left: 0; + right: auto; +} +.widget-slider .noUi-vertical .noUi-origin, +.jupyter-widget-slider .noUi-vertical .noUi-origin { + width: 0; +} +.widget-slider .noUi-horizontal .noUi-origin, +.jupyter-widget-slider .noUi-horizontal .noUi-origin { + height: 0; +} +.widget-slider .noUi-handle, +.jupyter-widget-slider .noUi-handle { + -webkit-backface-visibility: hidden; + backface-visibility: hidden; + position: absolute; +} +.widget-slider .noUi-touch-area, +.jupyter-widget-slider .noUi-touch-area { + height: 100%; + width: 100%; +} +.widget-slider .noUi-state-tap .noUi-connect, +.jupyter-widget-slider .noUi-state-tap .noUi-connect, +.widget-slider .noUi-state-tap .noUi-origin, +.jupyter-widget-slider .noUi-state-tap .noUi-origin { + -webkit-transition: transform 0.3s; + transition: transform 0.3s; +} +.widget-slider .noUi-state-drag *, +.jupyter-widget-slider .noUi-state-drag * { + cursor: inherit !important; +} +.widget-slider .noUi-horizontal, +.jupyter-widget-slider .noUi-horizontal { + height: 18px; +} +.widget-slider .noUi-horizontal .noUi-handle, +.jupyter-widget-slider .noUi-horizontal .noUi-handle { + width: 34px; + height: 28px; + right: -17px; + top: -6px; +} +.widget-slider .noUi-vertical, +.jupyter-widget-slider .noUi-vertical { + width: 18px; +} +.widget-slider .noUi-vertical .noUi-handle, +.jupyter-widget-slider .noUi-vertical .noUi-handle { + width: 28px; + height: 34px; + right: -6px; + top: -17px; +} +.widget-slider .noUi-txt-dir-rtl.noUi-horizontal .noUi-handle, +.jupyter-widget-slider .noUi-txt-dir-rtl.noUi-horizontal .noUi-handle { + left: -17px; + right: auto; +} +.widget-slider .noUi-target, +.jupyter-widget-slider .noUi-target { + background: #FAFAFA; + border-radius: 4px; + border: 1px solid #D3D3D3; + box-shadow: inset 0 1px 1px #F0F0F0, 0 3px 6px -5px #BBB; +} +.widget-slider .noUi-connects, +.jupyter-widget-slider .noUi-connects { + border-radius: 3px; +} +.widget-slider .noUi-connect, +.jupyter-widget-slider .noUi-connect { + background: #3FB8AF; +} +.widget-slider .noUi-draggable, +.jupyter-widget-slider .noUi-draggable { + cursor: ew-resize; +} +.widget-slider .noUi-vertical .noUi-draggable, +.jupyter-widget-slider .noUi-vertical .noUi-draggable { + cursor: ns-resize; +} +.widget-slider .noUi-handle, +.jupyter-widget-slider .noUi-handle { + border: 1px solid #D9D9D9; + border-radius: 3px; + background: #FFF; + cursor: default; + box-shadow: + inset 0 0 1px #FFF, + inset 0 1px 7px #EBEBEB, + 0 3px 6px -3px #BBB; +} +.widget-slider .noUi-active, +.jupyter-widget-slider .noUi-active { + box-shadow: + inset 0 0 1px #FFF, + inset 0 1px 7px #DDD, + 0 3px 6px -3px #BBB; +} +.widget-slider .noUi-handle:before, +.jupyter-widget-slider .noUi-handle:before, +.widget-slider .noUi-handle:after, +.jupyter-widget-slider .noUi-handle:after { + content: ""; + display: block; + position: absolute; + height: 14px; + width: 1px; + background: #E8E7E6; + left: 14px; + top: 6px; +} +.widget-slider .noUi-handle:after, +.jupyter-widget-slider .noUi-handle:after { + left: 17px; +} +.widget-slider .noUi-vertical .noUi-handle:before, +.jupyter-widget-slider .noUi-vertical .noUi-handle:before, +.widget-slider .noUi-vertical .noUi-handle:after, +.jupyter-widget-slider .noUi-vertical .noUi-handle:after { + width: 14px; + height: 1px; + left: 6px; + top: 14px; +} +.widget-slider .noUi-vertical .noUi-handle:after, +.jupyter-widget-slider .noUi-vertical .noUi-handle:after { + top: 17px; +} +.widget-slider [disabled] .noUi-connect, +.jupyter-widget-slider [disabled] .noUi-connect { + background: #B8B8B8; +} +.widget-slider [disabled].noUi-target, +.jupyter-widget-slider [disabled].noUi-target, +.widget-slider [disabled].noUi-handle, +.jupyter-widget-slider [disabled].noUi-handle, +.widget-slider [disabled] .noUi-handle, +.jupyter-widget-slider [disabled] .noUi-handle { + cursor: not-allowed; +} +.widget-slider .noUi-pips, +.jupyter-widget-slider .noUi-pips, +.widget-slider .noUi-pips *, +.jupyter-widget-slider .noUi-pips * { + -moz-box-sizing: border-box; + box-sizing: border-box; +} +.widget-slider .noUi-pips, +.jupyter-widget-slider .noUi-pips { + position: absolute; + color: #999; +} +.widget-slider .noUi-value, +.jupyter-widget-slider .noUi-value { + position: absolute; + white-space: nowrap; + text-align: center; +} +.widget-slider .noUi-value-sub, +.jupyter-widget-slider .noUi-value-sub { + color: #ccc; + font-size: 10px; +} +.widget-slider .noUi-marker, +.jupyter-widget-slider .noUi-marker { + position: absolute; + background: #CCC; +} +.widget-slider .noUi-marker-sub, +.jupyter-widget-slider .noUi-marker-sub { + background: #AAA; +} +.widget-slider .noUi-marker-large, +.jupyter-widget-slider .noUi-marker-large { + background: #AAA; +} +.widget-slider .noUi-pips-horizontal, +.jupyter-widget-slider .noUi-pips-horizontal { + padding: 10px 0; + height: 80px; + top: 100%; + left: 0; + width: 100%; +} +.widget-slider .noUi-value-horizontal, +.jupyter-widget-slider .noUi-value-horizontal { + -webkit-transform: translate(-50%, 50%); + transform: translate(-50%, 50%); +} +.noUi-rtl .widget-slider .noUi-value-horizontal, +.noUi-rtl .jupyter-widget-slider .noUi-value-horizontal { + -webkit-transform: translate(50%, 50%); + transform: translate(50%, 50%); +} +.widget-slider .noUi-marker-horizontal.noUi-marker, +.jupyter-widget-slider .noUi-marker-horizontal.noUi-marker { + margin-left: -1px; + width: 2px; + height: 5px; +} +.widget-slider .noUi-marker-horizontal.noUi-marker-sub, +.jupyter-widget-slider .noUi-marker-horizontal.noUi-marker-sub { + height: 10px; +} +.widget-slider .noUi-marker-horizontal.noUi-marker-large, +.jupyter-widget-slider .noUi-marker-horizontal.noUi-marker-large { + height: 15px; +} +.widget-slider .noUi-pips-vertical, +.jupyter-widget-slider .noUi-pips-vertical { + padding: 0 10px; + height: 100%; + top: 0; + left: 100%; +} +.widget-slider .noUi-value-vertical, +.jupyter-widget-slider .noUi-value-vertical { + -webkit-transform: translate(0, -50%); + transform: translate(0, -50%); + padding-left: 25px; +} +.noUi-rtl .widget-slider .noUi-value-vertical, +.noUi-rtl .jupyter-widget-slider .noUi-value-vertical { + -webkit-transform: translate(0, 50%); + transform: translate(0, 50%); +} +.widget-slider .noUi-marker-vertical.noUi-marker, +.jupyter-widget-slider .noUi-marker-vertical.noUi-marker { + width: 5px; + height: 2px; + margin-top: -1px; +} +.widget-slider .noUi-marker-vertical.noUi-marker-sub, +.jupyter-widget-slider .noUi-marker-vertical.noUi-marker-sub { + width: 10px; +} +.widget-slider .noUi-marker-vertical.noUi-marker-large, +.jupyter-widget-slider .noUi-marker-vertical.noUi-marker-large { + width: 15px; +} +.widget-slider .noUi-tooltip, +.jupyter-widget-slider .noUi-tooltip { + display: block; + position: absolute; + border: 1px solid #D9D9D9; + border-radius: 3px; + background: #fff; + color: #000; + padding: 5px; + text-align: center; + white-space: nowrap; +} +.widget-slider .noUi-horizontal .noUi-tooltip, +.jupyter-widget-slider .noUi-horizontal .noUi-tooltip { + -webkit-transform: translate(-50%, 0); + transform: translate(-50%, 0); + left: 50%; + bottom: 120%; +} +.widget-slider .noUi-vertical .noUi-tooltip, +.jupyter-widget-slider .noUi-vertical .noUi-tooltip { + -webkit-transform: translate(0, -50%); + transform: translate(0, -50%); + top: 50%; + right: 120%; +} +.widget-slider .noUi-horizontal .noUi-origin > .noUi-tooltip, +.jupyter-widget-slider .noUi-horizontal .noUi-origin > .noUi-tooltip { + -webkit-transform: translate(50%, 0); + transform: translate(50%, 0); + left: auto; + bottom: 10px; +} +.widget-slider .noUi-vertical .noUi-origin > .noUi-tooltip, +.jupyter-widget-slider .noUi-vertical .noUi-origin > .noUi-tooltip { + -webkit-transform: translate(0, -18px); + transform: translate(0, -18px); + top: auto; + right: 28px; +} +.widget-slider .noUi-connect, +.jupyter-widget-slider .noUi-connect { + background: #2196f3; +} +.widget-slider .noUi-horizontal, +.jupyter-widget-slider .noUi-horizontal { + height: var(--jp-widgets-slider-track-thickness); +} +.widget-slider .noUi-vertical, +.jupyter-widget-slider .noUi-vertical { + width: var(--jp-widgets-slider-track-thickness); + height: 100%; +} +.widget-slider .noUi-horizontal .noUi-handle, +.jupyter-widget-slider .noUi-horizontal .noUi-handle { + width: var(--jp-widgets-slider-handle-size); + height: var(--jp-widgets-slider-handle-size); + border-radius: 50%; + top: calc((var(--jp-widgets-slider-track-thickness) - var(--jp-widgets-slider-handle-size)) / 2); + right: calc(var(--jp-widgets-slider-handle-size) / -2); +} +.widget-slider .noUi-vertical .noUi-handle, +.jupyter-widget-slider .noUi-vertical .noUi-handle { + height: var(--jp-widgets-slider-handle-size); + width: var(--jp-widgets-slider-handle-size); + border-radius: 50%; + right: calc((var(--jp-widgets-slider-handle-size) - var(--jp-widgets-slider-track-thickness)) / -2); + top: calc(var(--jp-widgets-slider-handle-size) / -2); +} +.widget-slider .noUi-handle:after, +.jupyter-widget-slider .noUi-handle:after { + content: none; +} +.widget-slider .noUi-handle:before, +.jupyter-widget-slider .noUi-handle:before { + content: none; +} +.widget-slider .noUi-target, +.jupyter-widget-slider .noUi-target { + background: #fafafa; + border-radius: 4px; + border: 1px; +} +.widget-slider .ui-slider, +.jupyter-widget-slider .ui-slider { + border: var(--jp-widgets-slider-border-width) solid var(--jp-layout-color3); + background: var(--jp-layout-color3); + box-sizing: border-box; + position: relative; + border-radius: 0px; +} +.widget-slider .noUi-handle, +.jupyter-widget-slider .noUi-handle { + width: var(--jp-widgets-slider-handle-size); + border: 1px solid #d9d9d9; + border-radius: 3px; + background: #fff; + cursor: default; + box-shadow: none; + outline: none; +} +.widget-slider .noUi-target:not([disabled]) .noUi-handle:hover, +.jupyter-widget-slider .noUi-target:not([disabled]) .noUi-handle:hover, +.widget-slider .noUi-target:not([disabled]) .noUi-handle:focus, +.jupyter-widget-slider .noUi-target:not([disabled]) .noUi-handle:focus { + background-color: var(--jp-widgets-slider-active-handle-color); + border: var(--jp-widgets-slider-border-width) solid var(--jp-widgets-slider-active-handle-color); +} +.widget-slider [disabled].noUi-target, +.jupyter-widget-slider [disabled].noUi-target { + opacity: 0.35; +} +.widget-slider .noUi-connects, +.jupyter-widget-slider .noUi-connects { + overflow: visible; + z-index: 0; + background: var(--jp-layout-color3); +} +.widget-slider .noUi-vertical .noUi-connect, +.jupyter-widget-slider .noUi-vertical .noUi-connect { + width: calc(100% + 2px); + right: -1px; +} +.widget-slider .noUi-horizontal .noUi-connect, +.jupyter-widget-slider .noUi-horizontal .noUi-connect { + height: calc(100% + 2px); + top: -1px; +} +:root { + --jp-widgets-color: var(--jp-content-font-color1); + --jp-widgets-label-color: var(--jp-widgets-color); + --jp-widgets-readout-color: var(--jp-widgets-color); + --jp-widgets-font-size: var(--jp-ui-font-size1); + --jp-widgets-margin: 2px; + --jp-widgets-inline-height: 28px; + --jp-widgets-inline-width: 300px; + --jp-widgets-inline-width-short: calc( var(--jp-widgets-inline-width) / 2 - var(--jp-widgets-margin) ); + --jp-widgets-inline-width-tiny: calc( var(--jp-widgets-inline-width-short) / 2 - var(--jp-widgets-margin) ); + --jp-widgets-inline-margin: 4px; + --jp-widgets-inline-label-width: 80px; + --jp-widgets-border-width: var(--jp-border-width); + --jp-widgets-vertical-height: 200px; + --jp-widgets-horizontal-tab-height: 24px; + --jp-widgets-horizontal-tab-width: 144px; + --jp-widgets-horizontal-tab-top-border: 2px; + --jp-widgets-progress-thickness: 20px; + --jp-widgets-container-padding: 15px; + --jp-widgets-input-padding: 4px; + --jp-widgets-radio-item-height-adjustment: 8px; + --jp-widgets-radio-item-height: calc( var(--jp-widgets-inline-height) - var(--jp-widgets-radio-item-height-adjustment) ); + --jp-widgets-slider-track-thickness: 4px; + --jp-widgets-slider-border-width: var(--jp-widgets-border-width); + --jp-widgets-slider-handle-size: 16px; + --jp-widgets-slider-handle-border-color: var(--jp-border-color1); + --jp-widgets-slider-handle-background-color: var(--jp-layout-color1); + --jp-widgets-slider-active-handle-color: var(--jp-brand-color1); + --jp-widgets-menu-item-height: 24px; + --jp-widgets-dropdown-arrow: url(data:image/svg+xml;base64,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); + --jp-widgets-input-color: var(--jp-ui-font-color1); + --jp-widgets-input-background-color: var(--jp-layout-color1); + --jp-widgets-input-border-color: var(--jp-border-color1); + --jp-widgets-input-focus-border-color: var(--jp-brand-color2); + --jp-widgets-input-border-width: var(--jp-widgets-border-width); + --jp-widgets-disabled-opacity: 0.6; + --md-shadow-key-umbra-opacity: 0.2; + --md-shadow-key-penumbra-opacity: 0.14; + --md-shadow-ambient-shadow-opacity: 0.12; +} +.jupyter-widgets { + margin: var(--jp-widgets-margin); + box-sizing: border-box; + color: var(--jp-widgets-color); + overflow: visible; +} +.jp-Output-result > .jupyter-widgets { + margin-left: 0; + margin-right: 0; +} +.widget-inline-hbox, +.jupyter-widget-inline-hbox { + box-sizing: border-box; + display: flex; + flex-direction: row; + align-items: baseline; +} +.widget-inline-vbox, +.jupyter-widget-inline-vbox { + box-sizing: border-box; + display: flex; + flex-direction: column; + align-items: center; +} +.widget-box, +.jupyter-widget-box { + box-sizing: border-box; + display: flex; + margin: 0; + overflow: auto; +} +.widget-gridbox, +.jupyter-widget-gridbox { + box-sizing: border-box; + display: grid; + margin: 0; + overflow: auto; +} +.widget-hbox, +.jupyter-widget-hbox { + flex-direction: row; +} +.widget-vbox, +.jupyter-widget-vbox { + flex-direction: column; +} +.jupyter-widget-tagsinput { + display: flex; + flex-direction: row; + flex-wrap: wrap; + align-items: center; + overflow: auto; + cursor: text; +} +.jupyter-widget-tag { + padding-left: 10px; + padding-right: 10px; + padding-top: 0px; + padding-bottom: 0px; + display: inline-block; + white-space: nowrap; + overflow: hidden; + text-overflow: ellipsis; + text-align: center; + font-size: var(--jp-widgets-font-size); + height: calc(var(--jp-widgets-inline-height) - 2px); + border: 0px solid; + line-height: calc(var(--jp-widgets-inline-height) - 2px); + box-shadow: none; + color: var(--jp-ui-font-color1); + background-color: var(--jp-layout-color2); + border-color: var(--jp-border-color2); + border: none; + user-select: none; + cursor: grab; + transition: margin-left 200ms; + margin: 1px 1px 1px 1px; +} +.jupyter-widget-tag.mod-active { + box-shadow: + 0 4px 5px 0 rgba(0, 0, 0, var(--md-shadow-key-penumbra-opacity)), + 0 1px 10px 0 rgba(0, 0, 0, var(--md-shadow-ambient-shadow-opacity)), + 0 2px 4px -1px rgba(0, 0, 0, var(--md-shadow-key-umbra-opacity)); + color: var(--jp-ui-font-color1); + background-color: var(--jp-layout-color3); +} +.jupyter-widget-colortag { + color: var(--jp-inverse-ui-font-color1); +} +.jupyter-widget-colortag.mod-active { + color: var(--jp-inverse-ui-font-color0); +} +.jupyter-widget-taginput { + color: var(--jp-ui-font-color0); + background-color: var(--jp-layout-color0); + cursor: text; + text-align: left; +} +.jupyter-widget-taginput:focus { + outline: none; +} +.jupyter-widget-tag-close { + margin-left: var(--jp-widgets-inline-margin); + padding: 2px 0px 2px 2px; +} +.jupyter-widget-tag-close:hover { + cursor: pointer; +} +.jupyter-widget-tag.mod-primary { + color: var(--jp-inverse-ui-font-color1); + background-color: var(--jp-brand-color1); +} +.jupyter-widget-tag.mod-primary.mod-active { + color: var(--jp-inverse-ui-font-color0); + background-color: var(--jp-brand-color0); +} +.jupyter-widget-tag.mod-success { + color: var(--jp-inverse-ui-font-color1); + background-color: var(--jp-success-color1); +} +.jupyter-widget-tag.mod-success.mod-active { + color: var(--jp-inverse-ui-font-color0); + background-color: var(--jp-success-color0); +} +.jupyter-widget-tag.mod-info { + color: var(--jp-inverse-ui-font-color1); + background-color: var(--jp-info-color1); +} +.jupyter-widget-tag.mod-info.mod-active { + color: var(--jp-inverse-ui-font-color0); + background-color: var(--jp-info-color0); +} +.jupyter-widget-tag.mod-warning { + color: var(--jp-inverse-ui-font-color1); + background-color: var(--jp-warn-color1); +} +.jupyter-widget-tag.mod-warning.mod-active { + color: var(--jp-inverse-ui-font-color0); + background-color: var(--jp-warn-color0); +} +.jupyter-widget-tag.mod-danger { + color: var(--jp-inverse-ui-font-color1); + background-color: var(--jp-error-color1); +} +.jupyter-widget-tag.mod-danger.mod-active { + color: var(--jp-inverse-ui-font-color0); + background-color: var(--jp-error-color0); +} +.jupyter-button { + padding-left: 10px; + padding-right: 10px; + padding-top: 0px; + padding-bottom: 0px; + display: inline-block; + white-space: nowrap; + overflow: hidden; + text-overflow: ellipsis; + text-align: center; + font-size: var(--jp-widgets-font-size); + cursor: pointer; + height: var(--jp-widgets-inline-height); + border: 0px solid; + line-height: var(--jp-widgets-inline-height); + box-shadow: none; + color: var(--jp-ui-font-color1); + background-color: var(--jp-layout-color2); + border-color: var(--jp-border-color2); + border: none; + user-select: none; +} +.jupyter-button i.fa { + margin-right: var(--jp-widgets-inline-margin); + pointer-events: none; +} +.jupyter-button:empty:before { + content: "\200b"; +} +.jupyter-widgets.jupyter-button:disabled { + opacity: var(--jp-widgets-disabled-opacity); +} +.jupyter-button i.fa.center { + margin-right: 0; +} +.jupyter-button:hover:enabled, +.jupyter-button:focus:enabled { + box-shadow: + 0 2px 2px 0 rgba(0, 0, 0, var(--md-shadow-key-penumbra-opacity)), + 0 3px 1px -2px rgba(0, 0, 0, var(--md-shadow-key-umbra-opacity)), + 0 1px 5px 0 rgba(0, 0, 0, var(--md-shadow-ambient-shadow-opacity)); +} +.jupyter-button:active, +.jupyter-button.mod-active { + box-shadow: + 0 4px 5px 0 rgba(0, 0, 0, var(--md-shadow-key-penumbra-opacity)), + 0 1px 10px 0 rgba(0, 0, 0, var(--md-shadow-ambient-shadow-opacity)), + 0 2px 4px -1px rgba(0, 0, 0, var(--md-shadow-key-umbra-opacity)); + color: var(--jp-ui-font-color1); + background-color: var(--jp-layout-color3); +} +.jupyter-button:focus:enabled { + outline: 1px solid var(--jp-widgets-input-focus-border-color); +} +.jupyter-button.mod-primary { + color: var(--jp-ui-inverse-font-color1); + background-color: var(--jp-brand-color1); +} +.jupyter-button.mod-primary.mod-active { + color: var(--jp-ui-inverse-font-color0); + background-color: var(--jp-brand-color0); +} +.jupyter-button.mod-primary:active { + color: var(--jp-ui-inverse-font-color0); + background-color: var(--jp-brand-color0); +} +.jupyter-button.mod-success { + color: var(--jp-ui-inverse-font-color1); + background-color: var(--jp-success-color1); +} +.jupyter-button.mod-success.mod-active { + color: var(--jp-ui-inverse-font-color0); + background-color: var(--jp-success-color0); +} +.jupyter-button.mod-success:active { + color: var(--jp-ui-inverse-font-color0); + background-color: var(--jp-success-color0); +} +.jupyter-button.mod-info { + color: var(--jp-ui-inverse-font-color1); + background-color: var(--jp-info-color1); +} +.jupyter-button.mod-info.mod-active { + color: var(--jp-ui-inverse-font-color0); + background-color: var(--jp-info-color0); +} +.jupyter-button.mod-info:active { + color: var(--jp-ui-inverse-font-color0); + background-color: var(--jp-info-color0); +} +.jupyter-button.mod-warning { + color: var(--jp-ui-inverse-font-color1); + background-color: var(--jp-warn-color1); +} +.jupyter-button.mod-warning.mod-active { + color: var(--jp-ui-inverse-font-color0); + background-color: var(--jp-warn-color0); +} +.jupyter-button.mod-warning:active { + color: var(--jp-ui-inverse-font-color0); + background-color: var(--jp-warn-color0); +} +.jupyter-button.mod-danger { + color: var(--jp-ui-inverse-font-color1); + background-color: var(--jp-error-color1); +} +.jupyter-button.mod-danger.mod-active { + color: var(--jp-ui-inverse-font-color0); + background-color: var(--jp-error-color0); +} +.jupyter-button.mod-danger:active { + color: var(--jp-ui-inverse-font-color0); + background-color: var(--jp-error-color0); +} +.widget-button, +.widget-toggle-button, +.widget-upload, +.jupyter-widget-button, +.jupyter-widget-toggle-button, +.jupyter-widget-upload { + width: var(--jp-widgets-inline-width-short); +} +.jupyter-widgets label { + margin-bottom: initial; +} +.widget-label-basic, +.jupyter-widget-label-basic { + color: var(--jp-widgets-label-color); + font-size: var(--jp-widgets-font-size); + overflow: hidden; + text-overflow: ellipsis; + white-space: nowrap; + line-height: var(--jp-widgets-inline-height); +} +.widget-label, +.jupyter-widget-label { + color: var(--jp-widgets-label-color); + font-size: var(--jp-widgets-font-size); + overflow: hidden; + text-overflow: ellipsis; + white-space: nowrap; + line-height: var(--jp-widgets-inline-height); +} +.widget-inline-hbox .widget-label, +.jupyter-widget-inline-hbox .jupyter-widget-label { + color: var(--jp-widgets-label-color); + text-align: right; + margin-right: calc(var(--jp-widgets-inline-margin) * 2); + width: var(--jp-widgets-inline-label-width); + flex-shrink: 0; +} +.widget-inline-vbox .widget-label, +.jupyter-widget-inline-vbox .jupyter-widget-label { + color: var(--jp-widgets-label-color); + text-align: center; + line-height: var(--jp-widgets-inline-height); +} +.widget-readout, +.jupyter-widget-readout { + color: var(--jp-widgets-readout-color); + font-size: var(--jp-widgets-font-size); + height: var(--jp-widgets-inline-height); + line-height: var(--jp-widgets-inline-height); + overflow: hidden; + white-space: nowrap; + text-align: center; +} +.widget-readout.overflow, +.jupyter-widget-readout.overflow { + -webkit-box-shadow: + 0 2px 2px 0 rgba(0, 0, 0, 0.2), + 0 3px 1px -2px rgba(0, 0, 0, 0.14), + 0 1px 5px 0 rgba(0, 0, 0, 0.12); + -moz-box-shadow: + 0 2px 2px 0 rgba(0, 0, 0, 0.2), + 0 3px 1px -2px rgba(0, 0, 0, 0.14), + 0 1px 5px 0 rgba(0, 0, 0, 0.12); + box-shadow: + 0 2px 2px 0 rgba(0, 0, 0, 0.2), + 0 3px 1px -2px rgba(0, 0, 0, 0.14), + 0 1px 5px 0 rgba(0, 0, 0, 0.12); +} +.widget-inline-hbox .widget-readout, +.jupyter-widget-inline-hbox .jupyter-widget-readout { + text-align: center; + max-width: var(--jp-widgets-inline-width-short); + min-width: var(--jp-widgets-inline-width-tiny); + margin-left: var(--jp-widgets-inline-margin); +} +.widget-inline-vbox .widget-readout, +.jupyter-widget-inline-vbox .jupyter-widget-readout { + margin-top: var(--jp-widgets-inline-margin); + width: inherit; +} +.widget-checkbox, +.jupyter-widget-checkbox { + width: var(--jp-widgets-inline-width); + height: var(--jp-widgets-inline-height); + line-height: var(--jp-widgets-inline-height); +} +.widget-checkbox input[type=checkbox], +.jupyter-widget-checkbox input[type=checkbox] { + margin: 0px calc(var(--jp-widgets-inline-margin) * 2) 0px 0px; + line-height: var(--jp-widgets-inline-height); + font-size: large; + flex-grow: 1; + flex-shrink: 0; + align-self: center; +} +.widget-valid, +.jupyter-widget-valid { + height: var(--jp-widgets-inline-height); + line-height: var(--jp-widgets-inline-height); + width: var(--jp-widgets-inline-width-short); + font-size: var(--jp-widgets-font-size); +} +.widget-valid i, +.jupyter-widget-valid i { + line-height: var(--jp-widgets-inline-height); + margin-right: var(--jp-widgets-inline-margin); + margin-left: var(--jp-widgets-inline-margin); +} +.widget-valid.mod-valid i, +.jupyter-widget-valid.mod-valid i { + color: green; +} +.widget-valid.mod-invalid i, +.jupyter-widget-valid.mod-invalid i { + color: red; +} +.widget-valid.mod-valid .widget-valid-readout, +.jupyter-widget-valid.mod-valid .jupyter-widget-valid-readout { + display: none; +} +.widget-textarea, +.widget-text, +.jupyter-widget-textarea, +.jupyter-widget-text { + width: var(--jp-widgets-inline-width); +} +.widget-text input[type=text], +.widget-text input[type=number], +.widget-text input[type=password], +.jupyter-widget-text input[type=text], +.jupyter-widget-text input[type=number], +.jupyter-widget-text input[type=password] { + height: var(--jp-widgets-inline-height); +} +.widget-text input[type=text]:disabled, +.widget-text input[type=number]:disabled, +.widget-text input[type=password]:disabled, +.widget-textarea textarea:disabled, +.jupyter-widget-text input[type=text]:disabled, +.jupyter-widget-text input[type=number]:disabled, +.jupyter-widget-text input[type=password]:disabled, +.jupyter-widget-textarea textarea:disabled { + opacity: var(--jp-widgets-disabled-opacity); +} +.widget-text input[type=text], +.widget-text input[type=number], +.widget-text input[type=password], +.widget-textarea textarea, +.jupyter-widget-text input[type=text], +.jupyter-widget-text input[type=number], +.jupyter-widget-text input[type=password], +.jupyter-widget-textarea textarea { + box-sizing: border-box; + border: var(--jp-widgets-input-border-width) solid var(--jp-widgets-input-border-color); + background-color: var(--jp-widgets-input-background-color); + color: var(--jp-widgets-input-color); + font-size: var(--jp-widgets-font-size); + flex-grow: 1; + min-width: 0; + flex-shrink: 1; + outline: none !important; +} +.widget-text input[type=text], +.widget-text input[type=password], +.widget-textarea textarea, +.jupyter-widget-text input[type=text], +.jupyter-widget-text input[type=password], +.jupyter-widget-textarea textarea { + padding: var(--jp-widgets-input-padding) calc(var(--jp-widgets-input-padding) * 2); +} +.widget-text input[type=number], +.jupyter-widget-text input[type=number] { + padding: var(--jp-widgets-input-padding) 0 var(--jp-widgets-input-padding) calc(var(--jp-widgets-input-padding) * 2); +} +.widget-textarea textarea, +.jupyter-widget-textarea textarea { + height: inherit; + width: inherit; +} +.widget-text input:focus, +.widget-textarea textarea:focus, +.jupyter-widget-text input:focus, +.jupyter-widget-textarea textarea:focus { + border-color: var(--jp-widgets-input-focus-border-color); +} +.widget-hslider, +.jupyter-widget-hslider { + width: var(--jp-widgets-inline-width); + height: var(--jp-widgets-inline-height); + line-height: var(--jp-widgets-inline-height); + align-items: center; +} +.widgets-slider .slider-container, +.jupyter-widgets-slider .slider-container { + overflow: visible; +} +.widget-hslider .slider-container, +.jupyter-widget-hslider .slider-container { + margin-left: calc(var(--jp-widgets-slider-handle-size) / 2 - 2 * var(--jp-widgets-slider-border-width)); + margin-right: calc(var(--jp-widgets-slider-handle-size) / 2 - 2 * var(--jp-widgets-slider-border-width)); + flex: 1 1 var(--jp-widgets-inline-width-short); +} +.widget-vbox .widget-label, +.jupyter-widget-vbox .jupyter-widget-label { + height: var(--jp-widgets-inline-height); + line-height: var(--jp-widgets-inline-height); +} +.widget-vslider, +.jupyter-widget-vslider { + height: var(--jp-widgets-vertical-height); + width: var(--jp-widgets-inline-width-tiny); +} +.widget-vslider .slider-container, +.jupyter-widget-vslider .slider-container { + flex: 1 1 var(--jp-widgets-inline-width-short); + margin-left: auto; + margin-right: auto; + margin-bottom: calc(var(--jp-widgets-slider-handle-size) / 2 - 2 * var(--jp-widgets-slider-border-width)); + margin-top: calc(var(--jp-widgets-slider-handle-size) / 2 - 2 * var(--jp-widgets-slider-border-width)); + display: flex; + flex-direction: column; +} +.progress-bar { + -webkit-transition: none; + -moz-transition: none; + -ms-transition: none; + -o-transition: none; + transition: none; +} +.progress-bar { + height: var(--jp-widgets-inline-height); +} +.progress-bar { + background-color: var(--jp-brand-color1); +} +.progress-bar-success { + background-color: var(--jp-success-color1); +} +.progress-bar-info { + background-color: var(--jp-info-color1); +} +.progress-bar-warning { + background-color: var(--jp-warn-color1); +} +.progress-bar-danger { + background-color: var(--jp-error-color1); +} +.progress { + background-color: var(--jp-layout-color2); + border: none; + box-shadow: none; +} +.widget-hprogress, +.jupyter-widget-hprogress { + height: var(--jp-widgets-inline-height); + line-height: var(--jp-widgets-inline-height); + width: var(--jp-widgets-inline-width); + align-items: center; +} +.widget-hprogress .progress, +.jupyter-widget-hprogress .progress { + flex-grow: 1; + margin-top: var(--jp-widgets-input-padding); + margin-bottom: var(--jp-widgets-input-padding); + align-self: stretch; + height: initial; +} +.widget-vprogress, +.jupyter-widget-vprogress { + height: var(--jp-widgets-vertical-height); + width: var(--jp-widgets-inline-width-tiny); +} +.widget-vprogress .progress, +.jupyter-widget-vprogress .progress { + flex-grow: 1; + width: var(--jp-widgets-progress-thickness); + margin-left: auto; + margin-right: auto; + margin-bottom: 0; +} +.widget-dropdown, +.jupyter-widget-dropdown { + height: var(--jp-widgets-inline-height); + width: var(--jp-widgets-inline-width); + line-height: var(--jp-widgets-inline-height); +} +.widget-dropdown > select, +.jupyter-widget-dropdown > select { + padding-right: 20px; + border: var(--jp-widgets-input-border-width) solid var(--jp-widgets-input-border-color); + border-radius: 0; + height: inherit; + flex: 1 1 var(--jp-widgets-inline-width-short); + min-width: 0; + box-sizing: border-box; + outline: none !important; + box-shadow: none; + background-color: var(--jp-widgets-input-background-color); + color: var(--jp-widgets-input-color); + font-size: var(--jp-widgets-font-size); + vertical-align: top; + padding-left: calc(var(--jp-widgets-input-padding) * 2); + appearance: none; + -webkit-appearance: none; + -moz-appearance: none; + background-repeat: no-repeat; + background-size: 20px; + background-position: right center; + background-image: var(--jp-widgets-dropdown-arrow); +} +.widget-dropdown > select:focus, +.jupyter-widget-dropdown > select:focus { + border-color: var(--jp-widgets-input-focus-border-color); +} +.widget-dropdown > select:disabled, +.jupyter-widget-dropdown > select:disabled { + opacity: var(--jp-widgets-disabled-opacity); +} +.widget-dropdown > select:-moz-focusring, +.jupyter-widget-dropdown > select:-moz-focusring { + color: transparent; + text-shadow: 0 0 0 #000; +} +.widget-select, +.jupyter-widget-select { + width: var(--jp-widgets-inline-width); + line-height: var(--jp-widgets-inline-height); + align-items: flex-start; +} +.widget-select > select, +.jupyter-widget-select > select { + border: var(--jp-widgets-input-border-width) solid var(--jp-widgets-input-border-color); + background-color: var(--jp-widgets-input-background-color); + color: var(--jp-widgets-input-color); + font-size: var(--jp-widgets-font-size); + flex: 1 1 var(--jp-widgets-inline-width-short); + outline: none !important; + overflow: auto; + height: inherit; + padding-top: 5px; +} +.widget-select > select:focus, +.jupyter-widget-select > select:focus { + border-color: var(--jp-widgets-input-focus-border-color); +} +.wiget-select > select > option, +.jupyter-wiget-select > select > option { + padding-left: var(--jp-widgets-input-padding); + line-height: var(--jp-widgets-inline-height); + padding-top: calc(var(--jp-widgets-inline-height) - var(--jp-widgets-font-size) / 2); + padding-bottom: calc(var(--jp-widgets-inline-height) - var(--jp-widgets-font-size) / 2); +} +.widget-toggle-buttons, +.jupyter-widget-toggle-buttons { + line-height: var(--jp-widgets-inline-height); +} +.widget-toggle-buttons .widget-toggle-button, +.jupyter-widget-toggle-buttons .jupyter-widget-toggle-button { + margin-left: var(--jp-widgets-margin); + margin-right: var(--jp-widgets-margin); +} +.widget-toggle-buttons .jupyter-button:disabled, +.jupyter-widget-toggle-buttons .jupyter-button:disabled { + opacity: var(--jp-widgets-disabled-opacity); +} +.widget-radio, +.jupyter-widget-radio { + width: var(--jp-widgets-inline-width); + line-height: var(--jp-widgets-inline-height); +} +.widget-radio-box, +.jupyter-widget-radio-box { + display: flex; + flex-direction: column; + align-items: stretch; + box-sizing: border-box; + flex-grow: 1; + margin-bottom: var(--jp-widgets-radio-item-height-adjustment); +} +.widget-radio-box label, +.jupyter-widget-radio-box label { + height: var(--jp-widgets-radio-item-height); + line-height: var(--jp-widgets-radio-item-height); + font-size: var(--jp-widgets-font-size); +} +.widget-radio-box input, +.jupyter-widget-radio-box input { + height: var(--jp-widgets-radio-item-height); + line-height: var(--jp-widgets-radio-item-height); + margin: 0 calc(var(--jp-widgets-input-padding) * 2) 0 1px; + float: left; +} +.widget-colorpicker, +.jupyter-widget-colorpicker { + width: var(--jp-widgets-inline-width); + height: var(--jp-widgets-inline-height); + line-height: var(--jp-widgets-inline-height); +} +.widget-colorpicker > .widget-colorpicker-input, +.jupyter-widget-colorpicker > .jupyter-widget-colorpicker-input { + flex-grow: 1; + flex-shrink: 1; + min-width: var(--jp-widgets-inline-width-tiny); +} +.widget-colorpicker input[type=color], +.jupyter-widget-colorpicker input[type=color] { + width: var(--jp-widgets-inline-height); + height: var(--jp-widgets-inline-height); + padding: 0 2px; + background: var(--jp-widgets-input-background-color); + color: var(--jp-widgets-input-color); + border: var(--jp-widgets-input-border-width) solid var(--jp-widgets-input-border-color); + border-left: none; + flex-grow: 0; + flex-shrink: 0; + box-sizing: border-box; + align-self: stretch; + outline: none !important; +} +.widget-colorpicker.concise input[type=color], +.jupyter-widget-colorpicker.concise input[type=color] { + border-left: var(--jp-widgets-input-border-width) solid var(--jp-widgets-input-border-color); +} +.widget-colorpicker input[type=color]:focus, +.widget-colorpicker input[type=text]:focus, +.jupyter-widget-colorpicker input[type=color]:focus, +.jupyter-widget-colorpicker input[type=text]:focus { + border-color: var(--jp-widgets-input-focus-border-color); +} +.widget-colorpicker input[type=text], +.jupyter-widget-colorpicker input[type=text] { + flex-grow: 1; + outline: none !important; + height: var(--jp-widgets-inline-height); + line-height: var(--jp-widgets-inline-height); + background: var(--jp-widgets-input-background-color); + color: var(--jp-widgets-input-color); + border: var(--jp-widgets-input-border-width) solid var(--jp-widgets-input-border-color); + font-size: var(--jp-widgets-font-size); + padding: var(--jp-widgets-input-padding) calc(var(--jp-widgets-input-padding) * 2); + min-width: 0; + flex-shrink: 1; + box-sizing: border-box; +} +.widget-colorpicker input[type=text]:disabled, +.jupyter-widget-colorpicker input[type=text]:disabled { + opacity: var(--jp-widgets-disabled-opacity); +} +.widget-datepicker, +.jupyter-widget-datepicker { + width: var(--jp-widgets-inline-width); + height: var(--jp-widgets-inline-height); + line-height: var(--jp-widgets-inline-height); +} +.widget-datepicker input[type=date], +.jupyter-widget-datepicker input[type=date] { + flex-grow: 1; + flex-shrink: 1; + min-width: 0; + outline: none !important; + height: var(--jp-widgets-inline-height); + border: var(--jp-widgets-input-border-width) solid var(--jp-widgets-input-border-color); + background-color: var(--jp-widgets-input-background-color); + color: var(--jp-widgets-input-color); + font-size: var(--jp-widgets-font-size); + padding: var(--jp-widgets-input-padding) calc(var(--jp-widgets-input-padding) * 2); + box-sizing: border-box; +} +.widget-datepicker input[type=date]:focus, +.jupyter-widget-datepicker input[type=date]:focus { + border-color: var(--jp-widgets-input-focus-border-color); +} +.widget-datepicker input[type=date]:invalid, +.jupyter-widget-datepicker input[type=date]:invalid { + border-color: var(--jp-warn-color1); +} +.widget-datepicker input[type=date]:disabled, +.jupyter-widget-datepicker input[type=date]:disabled { + opacity: var(--jp-widgets-disabled-opacity); +} +.widget-play, +.jupyter-widget-play { + width: var(--jp-widgets-inline-width-short); + display: flex; + align-items: stretch; +} +.widget-play .jupyter-button, +.jupyter-widget-play .jupyter-button { + flex-grow: 1; + height: auto; +} +.widget-play .jupyter-button:disabled, +.jupyter-widget-play .jupyter-button:disabled { + opacity: var(--jp-widgets-disabled-opacity); +} +.jupyter-widgets.widget-tab, +.jupyter-widgets.jupyter-widget-tab { + display: flex; + flex-direction: column; +} +.jupyter-widgets.widget-tab > .p-TabBar, +.jupyter-widgets.jupyter-widget-tab > .p-TabBar, +.jupyter-widgets.jupyter-widget-tab > .lm-TabBar { + overflow-x: visible; + overflow-y: visible; +} +.jupyter-widgets.widget-tab > .p-TabBar > .p-TabBar-content, +.jupyter-widgets.jupyter-widget-tab > .p-TabBar > .p-TabBar-content, +.jupyter-widgets.jupyter-widget-tab > .lm-TabBar > .lm-TabBar-content { + align-items: flex-end; + min-width: 0; + min-height: 0; +} +.jupyter-widgets.widget-tab > .widget-tab-contents, +.jupyter-widgets.jupyter-widget-tab > .widget-tab-contents { + width: 100%; + box-sizing: border-box; + margin: 0; + background: var(--jp-layout-color1); + color: var(--jp-ui-font-color1); + border: var(--jp-border-width) solid var(--jp-border-color1); + padding: var(--jp-widgets-container-padding); + flex-grow: 1; + overflow: auto; +} +.jupyter-widgets.widget-tab > .p-TabBar, +.jupyter-widgets.jupyter-widget-tab > .p-TabBar, +.jupyter-widgets.jupyter-widget-tab > .lm-TabBar { + font: + var(--jp-widgets-font-size) Helvetica, + Arial, + sans-serif; + min-height: calc(var(--jp-widgets-horizontal-tab-height) + var(--jp-border-width)); +} +.jupyter-widgets.widget-tab > .p-TabBar .p-TabBar-tab, +.jupyter-widgets.jupyter-widget-tab > .p-TabBar .p-TabBar-tab, +.jupyter-widgets.jupyter-widget-tab > .lm-TabBar .lm-TabBar-tab { + flex: 0 1 var(--jp-widgets-horizontal-tab-width); + min-width: 35px; + min-height: calc(var(--jp-widgets-horizontal-tab-height) + var(--jp-border-width)); + line-height: var(--jp-widgets-horizontal-tab-height); + margin-left: calc(-1 * var(--jp-border-width)); + padding: 0px 10px; + background: var(--jp-layout-color2); + color: var(--jp-ui-font-color2); + border: var(--jp-border-width) solid var(--jp-border-color1); + border-bottom: none; + position: relative; +} +.jupyter-widgets.widget-tab > .p-TabBar .p-TabBar-tab.p-mod-current, +.jupyter-widgets.jupyter-widget-tab > .p-TabBar .p-TabBar-tab.p-mod-current, +.jupyter-widgets.jupyter-widget-tab > .lm-TabBar .lm-TabBar-tab.lm-mod-current { + color: var(--jp-ui-font-color0); + background: var(--jp-layout-color1); + min-height: calc(var(--jp-widgets-horizontal-tab-height) + 2 * var(--jp-border-width)); + transform: translateY(var(--jp-border-width)); + overflow: visible; +} +.jupyter-widgets.widget-tab > .p-TabBar .p-TabBar-tab.p-mod-current:before, +.jupyter-widgets.jupyter-widget-tab > .p-TabBar .p-TabBar-tab.p-mod-current:before, +.jupyter-widgets.jupyter-widget-tab > .lm-TabBar .lm-TabBar-tab.lm-mod-current:before { + position: absolute; + top: calc(-1 * var(--jp-border-width)); + left: calc(-1 * var(--jp-border-width)); + content: ""; + height: var(--jp-widgets-horizontal-tab-top-border); + width: calc(100% + 2 * var(--jp-border-width)); + background: var(--jp-brand-color1); +} +.jupyter-widgets.widget-tab > .p-TabBar .p-TabBar-tab:first-child, +.jupyter-widgets.jupyter-widget-tab > .p-TabBar .p-TabBar-tab:first-child, +.jupyter-widgets.jupyter-widget-tab > .lm-TabBar .lm-TabBar-tab:first-child { + margin-left: 0; +} +.jupyter-widgets.widget-tab > .p-TabBar .p-TabBar-tab:hover:not(.p-mod-current), +.jupyter-widgets.jupyter-widget-tab > .p-TabBar .p-TabBar-tab:hover:not(.p-mod-current), +.jupyter-widgets.jupyter-widget-tab > .lm-TabBar .lm-TabBar-tab:hover:not(.lm-mod-current) { + background: var(--jp-layout-color1); + color: var(--jp-ui-font-color1); +} +.jupyter-widgets.widget-tab > .p-TabBar .p-mod-closable > .p-TabBar-tabCloseIcon, +.jupyter-widgets.jupyter-widget-tab > .p-TabBar .p-mod-closable > .p-TabBar-tabCloseIcon, +.jupyter-widgets.jupyter-widget-tab > .lm-TabBar .lm-mod-closable > .lm-TabBar-tabCloseIcon { + margin-left: 4px; +} +.jupyter-widgets.widget-tab > .p-TabBar .p-mod-closable > .p-TabBar-tabCloseIcon:before, +.jupyter-widgets.jupyter-widget-widget-tab > .p-TabBar .p-mod-closable > .p-TabBar-tabCloseIcon:before, +.jupyter-widgets.jupyter-widget-tab > .lm-TabBar .lm-mod-closable > .lm-TabBar-tabCloseIcon:before { + font-family: FontAwesome; + content: "\f00d"; +} +.jupyter-widgets.widget-tab > .p-TabBar .p-TabBar-tabIcon, +.jupyter-widgets.widget-tab > .p-TabBar .p-TabBar-tabLabel, +.jupyter-widgets.widget-tab > .p-TabBar .p-TabBar-tabCloseIcon, +.jupyter-widgets.jupyter-widget-tab > .p-TabBar .p-TabBar-tabIcon, +.jupyter-widgets.jupyter-widget-tab > .p-TabBar .p-TabBar-tabLabel, +.jupyter-widgets.jupyter-widget-tab > .p-TabBar .p-TabBar-tabCloseIcon, +.jupyter-widgets.jupyter-widget-tab > .lm-TabBar .lm-TabBar-tabIcon, +.jupyter-widgets.jupyter-widget-tab > .lm-TabBar .lm-TabBar-tabLabel, +.jupyter-widgets.jupyter-widget-tab > .lm-TabBar .lm-TabBar-tabCloseIcon { + line-height: var(--jp-widgets-horizontal-tab-height); +} +.jupyter-widget-Collapse { + display: flex; + flex-direction: column; + align-items: stretch; +} +.jupyter-widget-Collapse-header { + padding: var(--jp-widgets-input-padding); + cursor: pointer; + color: var(--jp-ui-font-color2); + background-color: var(--jp-layout-color2); + border: var(--jp-widgets-border-width) solid var(--jp-border-color1); + padding: calc(var(--jp-widgets-container-padding) * 2 / 3) var(--jp-widgets-container-padding); + font-weight: bold; +} +.jupyter-widget-Collapse-header:hover { + background-color: var(--jp-layout-color1); + color: var(--jp-ui-font-color1); +} +.jupyter-widget-Collapse-open > .jupyter-widget-Collapse-header { + background-color: var(--jp-layout-color1); + color: var(--jp-ui-font-color0); + cursor: default; + border-bottom: none; +} +.jupyter-widget-Collapse-contents { + padding: var(--jp-widgets-container-padding); + background-color: var(--jp-layout-color1); + color: var(--jp-ui-font-color1); + border-left: var(--jp-widgets-border-width) solid var(--jp-border-color1); + border-right: var(--jp-widgets-border-width) solid var(--jp-border-color1); + border-bottom: var(--jp-widgets-border-width) solid var(--jp-border-color1); + overflow: auto; +} +.jupyter-widget-Accordion { + display: flex; + flex-direction: column; + align-items: stretch; +} +.jupyter-widget-Accordion .jupyter-widget-Collapse { + margin-bottom: 0; +} +.jupyter-widget-Accordion .jupyter-widget-Collapse + .jupyter-widget-Collapse { + margin-top: 4px; +} +.widget-html, +.widget-htmlmath, +.jupyter-widget-html, +.jupyter-widget-htmlmath { + font-size: var(--jp-widgets-font-size); +} +.widget-html > .widget-html-content, +.widget-htmlmath > .widget-html-content, +.jupyter-widget-html > .jupyter-widget-html-content, +.jupyter-widget-htmlmath > .jupyter-widget-html-content { + align-self: stretch; + flex-grow: 1; + flex-shrink: 1; + line-height: var(--jp-widgets-inline-height); + position: relative; +} +.widget-image, +.jupyter-widget-image { + max-width: 100%; + height: auto; +} +.lm-Widget { + box-sizing: border-box; + position: relative; + overflow: hidden; +} +.lm-Widget.lm-mod-hidden { + display: none !important; +} +.lm-AccordionPanel[data-orientation=horizontal] > .lm-AccordionPanel-title { + display: block; + transform-origin: top left; + transform: rotate(-90deg) translate(-100%); +} +.lm-CommandPalette { + display: flex; + flex-direction: column; + -webkit-user-select: none; + -moz-user-select: none; + -ms-user-select: none; + user-select: none; +} +.lm-CommandPalette-search { + flex: 0 0 auto; +} +.lm-CommandPalette-content { + flex: 1 1 auto; + margin: 0; + padding: 0; + min-height: 0; + overflow: auto; + list-style-type: none; +} +.lm-CommandPalette-header { + overflow: hidden; + white-space: nowrap; + text-overflow: ellipsis; +} +.lm-CommandPalette-item { + display: flex; + flex-direction: row; +} +.lm-CommandPalette-itemIcon { + flex: 0 0 auto; +} +.lm-CommandPalette-itemContent { + flex: 1 1 auto; + overflow: hidden; +} +.lm-CommandPalette-itemShortcut { + flex: 0 0 auto; +} +.lm-CommandPalette-itemLabel { + overflow: hidden; + white-space: nowrap; + text-overflow: ellipsis; +} +.lm-close-icon { + border: 1px solid transparent; + background-color: transparent; + position: absolute; + z-index: 1; + right: 3%; + top: 0; + bottom: 0; + margin: auto; + padding: 7px 0; + display: none; + vertical-align: middle; + outline: 0; + cursor: pointer; +} +.lm-close-icon:after { + content: "X"; + display: block; + width: 15px; + height: 15px; + text-align: center; + color: #000; + font-weight: normal; + font-size: 12px; + cursor: pointer; +} +.lm-DockPanel { + z-index: 0; +} +.lm-DockPanel-widget { + z-index: 0; +} +.lm-DockPanel-tabBar { + z-index: 1; +} +.lm-DockPanel-handle { + z-index: 2; +} +.lm-DockPanel-handle.lm-mod-hidden { + display: none !important; +} +.lm-DockPanel-handle:after { + position: absolute; + top: 0; + left: 0; + width: 100%; + height: 100%; + content: ""; +} +.lm-DockPanel-handle[data-orientation=horizontal] { + cursor: ew-resize; +} +.lm-DockPanel-handle[data-orientation=vertical] { + cursor: ns-resize; +} +.lm-DockPanel-handle[data-orientation=horizontal]:after { + left: 50%; + min-width: 8px; + transform: translateX(-50%); +} +.lm-DockPanel-handle[data-orientation=vertical]:after { + top: 50%; + min-height: 8px; + transform: translateY(-50%); +} +.lm-DockPanel-overlay { + z-index: 3; + box-sizing: border-box; + pointer-events: none; +} +.lm-DockPanel-overlay.lm-mod-hidden { + display: none !important; +} +.lm-Menu { + z-index: 10000; + position: absolute; + white-space: nowrap; + overflow-x: hidden; + overflow-y: auto; + outline: none; + -webkit-user-select: none; + -moz-user-select: none; + -ms-user-select: none; + user-select: none; +} +.lm-Menu-content { + margin: 0; + padding: 0; + display: table; + list-style-type: none; +} +.lm-Menu-item { + display: table-row; +} +.lm-Menu-item.lm-mod-hidden, +.lm-Menu-item.lm-mod-collapsed { + display: none !important; +} +.lm-Menu-itemIcon, +.lm-Menu-itemSubmenuIcon { + display: table-cell; + text-align: center; +} +.lm-Menu-itemLabel { + display: table-cell; + text-align: left; +} +.lm-Menu-itemShortcut { + display: table-cell; + text-align: right; +} +.lm-MenuBar { + outline: none; + -webkit-user-select: none; + -moz-user-select: none; + -ms-user-select: none; + user-select: none; +} +.lm-MenuBar-content { + margin: 0; + padding: 0; + display: flex; + flex-direction: row; + list-style-type: none; +} +.lm-MenuBar-item { + box-sizing: border-box; +} +.lm-MenuBar-itemIcon, +.lm-MenuBar-itemLabel { + display: inline-block; +} +.lm-ScrollBar { + display: flex; + -webkit-user-select: none; + -moz-user-select: none; + -ms-user-select: none; + user-select: none; +} +.lm-ScrollBar[data-orientation=horizontal] { + flex-direction: row; +} +.lm-ScrollBar[data-orientation=vertical] { + flex-direction: column; +} +.lm-ScrollBar-button { + box-sizing: border-box; + flex: 0 0 auto; +} +.lm-ScrollBar-track { + box-sizing: border-box; + position: relative; + overflow: hidden; + flex: 1 1 auto; +} +.lm-ScrollBar-thumb { + box-sizing: border-box; + position: absolute; +} +.lm-SplitPanel-child { + z-index: 0; +} +.lm-SplitPanel-handle { + z-index: 1; +} +.lm-SplitPanel-handle.lm-mod-hidden { + display: none !important; +} +.lm-SplitPanel-handle:after { + position: absolute; + top: 0; + left: 0; + width: 100%; + height: 100%; + content: ""; +} +.lm-SplitPanel[data-orientation=horizontal] > .lm-SplitPanel-handle { + cursor: ew-resize; +} +.lm-SplitPanel[data-orientation=vertical] > .lm-SplitPanel-handle { + cursor: ns-resize; +} +.lm-SplitPanel[data-orientation=horizontal] > .lm-SplitPanel-handle:after { + left: 50%; + min-width: 8px; + transform: translateX(-50%); +} +.lm-SplitPanel[data-orientation=vertical] > .lm-SplitPanel-handle:after { + top: 50%; + min-height: 8px; + transform: translateY(-50%); +} +.lm-TabBar { + display: flex; + -webkit-user-select: none; + -moz-user-select: none; + -ms-user-select: none; + user-select: none; +} +.lm-TabBar[data-orientation=horizontal] { + flex-direction: row; + align-items: flex-end; +} +.lm-TabBar[data-orientation=vertical] { + flex-direction: column; + align-items: flex-end; +} +.lm-TabBar-content { + margin: 0; + padding: 0; + display: flex; + flex: 1 1 auto; + list-style-type: none; +} +.lm-TabBar[data-orientation=horizontal] > .lm-TabBar-content { + flex-direction: row; +} +.lm-TabBar[data-orientation=vertical] > .lm-TabBar-content { + flex-direction: column; +} +.lm-TabBar-tab { + display: flex; + flex-direction: row; + box-sizing: border-box; + overflow: hidden; + touch-action: none; +} +.lm-TabBar-tabIcon, +.lm-TabBar-tabCloseIcon { + flex: 0 0 auto; +} +.lm-TabBar-tabLabel { + flex: 1 1 auto; + overflow: hidden; + white-space: nowrap; +} +.lm-TabBar-tabInput { + user-select: all; + width: 100%; + box-sizing: border-box; +} +.lm-TabBar-tab.lm-mod-hidden { + display: none !important; +} +.lm-TabBar-addButton.lm-mod-hidden { + display: none !important; +} +.lm-TabBar.lm-mod-dragging .lm-TabBar-tab { + position: relative; +} +.lm-TabBar.lm-mod-dragging[data-orientation=horizontal] .lm-TabBar-tab { + left: 0; + transition: left 150ms ease; +} +.lm-TabBar.lm-mod-dragging[data-orientation=vertical] .lm-TabBar-tab { + top: 0; + transition: top 150ms ease; +} +.lm-TabBar.lm-mod-dragging .lm-TabBar-tab.lm-mod-dragging { + transition: none; +} +.lm-TabBar-tabLabel .lm-TabBar-tabInput { + user-select: all; + width: 100%; + box-sizing: border-box; + background: inherit; +} +.lm-TabPanel-tabBar { + z-index: 1; +} +.lm-TabPanel-stackedPanel { + z-index: 0; +} +:root { + --jp-private-commandpalette-search-height: 28px; +} +.lm-CommandPalette { + padding-bottom: 0; + color: var(--jp-ui-font-color1); + background: var(--jp-layout-color1); + font-size: var(--jp-ui-font-size1); +} +.jp-ModalCommandPalette { + position: absolute; + z-index: 10000; + top: 38px; + left: 30%; + margin: 0; + padding: 4px; + width: 40%; + box-shadow: var(--jp-elevation-z4); + border-radius: 4px; + background: var(--jp-layout-color0); +} +.jp-ModalCommandPalette .lm-CommandPalette { + max-height: 40vh; +} +.jp-ModalCommandPalette .lm-CommandPalette .lm-close-icon::after { + display: none; +} +.jp-ModalCommandPalette .lm-CommandPalette .lm-CommandPalette-header { + display: none; +} +.jp-ModalCommandPalette .lm-CommandPalette .lm-CommandPalette-item { + margin-left: 4px; + margin-right: 4px; +} +.jp-ModalCommandPalette .lm-CommandPalette .lm-CommandPalette-item.lm-mod-disabled { + display: none; +} +.lm-CommandPalette-search { + padding: 4px; + background-color: var(--jp-layout-color1); + z-index: 2; +} +.lm-CommandPalette-wrapper { + overflow: overlay; + padding: 0 9px; + background-color: var(--jp-input-active-background); + height: 30px; + box-shadow: inset 0 0 0 var(--jp-border-width) var(--jp-input-border-color); +} +.lm-CommandPalette.lm-mod-focused .lm-CommandPalette-wrapper { + box-shadow: inset 0 0 0 1px var(--jp-input-active-box-shadow-color), inset 0 0 0 3px var(--jp-input-active-box-shadow-color); +} +.jp-SearchIconGroup { + color: white; + background-color: var(--jp-brand-color1); + position: absolute; + top: 4px; + right: 4px; + padding: 5px 5px 1px; +} +.jp-SearchIconGroup svg { + height: 20px; + width: 20px; +} +.jp-SearchIconGroup .jp-icon3[fill] { + fill: var(--jp-layout-color0); +} +.lm-CommandPalette-input { + background: transparent; + width: calc(100% - 18px); + float: left; + border: none; + outline: none; + font-size: var(--jp-ui-font-size1); + color: var(--jp-ui-font-color0); + line-height: var(--jp-private-commandpalette-search-height); +} +.lm-CommandPalette-input::-webkit-input-placeholder, +.lm-CommandPalette-input::-moz-placeholder, +.lm-CommandPalette-input:-ms-input-placeholder { + color: var(--jp-ui-font-color2); + font-size: var(--jp-ui-font-size1); +} +.lm-CommandPalette-header:first-child { + margin-top: 0; +} +.lm-CommandPalette-header { + border-bottom: solid var(--jp-border-width) var(--jp-border-color2); + color: var(--jp-ui-font-color1); + cursor: pointer; + display: flex; + font-size: var(--jp-ui-font-size0); + font-weight: 600; + letter-spacing: 1px; + margin-top: 8px; + padding: 8px 0 8px 12px; + text-transform: uppercase; +} +.lm-CommandPalette-header.lm-mod-active { + background: var(--jp-layout-color2); +} +.lm-CommandPalette-header > mark { + background-color: transparent; + font-weight: bold; + color: var(--jp-ui-font-color1); +} +.lm-CommandPalette-item { + padding: 4px 12px 4px 4px; + color: var(--jp-ui-font-color1); + font-size: var(--jp-ui-font-size1); + font-weight: 400; + display: flex; +} +.lm-CommandPalette-item.lm-mod-disabled { + color: var(--jp-ui-font-color2); +} +.lm-CommandPalette-item.lm-mod-active { + color: var(--jp-ui-inverse-font-color1); + background: var(--jp-brand-color1); +} +.lm-CommandPalette-item.lm-mod-active .lm-CommandPalette-itemLabel > mark { + color: var(--jp-ui-inverse-font-color0); +} +.lm-CommandPalette-item.lm-mod-active .jp-icon-selectable[fill] { + fill: var(--jp-layout-color0); +} +.lm-CommandPalette-item.lm-mod-active:hover:not(.lm-mod-disabled) { + color: var(--jp-ui-inverse-font-color1); + background: var(--jp-brand-color1); +} +.lm-CommandPalette-item:hover:not(.lm-mod-active):not(.lm-mod-disabled) { + background: var(--jp-layout-color2); +} +.lm-CommandPalette-itemContent { + overflow: hidden; +} +.lm-CommandPalette-itemLabel > mark { + color: var(--jp-ui-font-color0); + background-color: transparent; + font-weight: bold; +} +.lm-CommandPalette-item.lm-mod-disabled mark { + color: var(--jp-ui-font-color2); +} +.lm-CommandPalette-item .lm-CommandPalette-itemIcon { + margin: 0 4px 0 0; + position: relative; + width: 16px; + top: 2px; + flex: 0 0 auto; +} +.lm-CommandPalette-item.lm-mod-disabled .lm-CommandPalette-itemIcon { + opacity: 0.6; +} +.lm-CommandPalette-item .lm-CommandPalette-itemShortcut { + flex: 0 0 auto; +} +.lm-CommandPalette-itemCaption { + display: none; +} +.lm-CommandPalette-content { + background-color: var(--jp-layout-color1); +} +.lm-CommandPalette-content:empty::after { + content: "No results"; + margin: auto; + margin-top: 20px; + width: 100px; + display: block; + font-size: var(--jp-ui-font-size2); + font-family: var(--jp-ui-font-family); + font-weight: lighter; +} +.lm-CommandPalette-emptyMessage { + text-align: center; + margin-top: 24px; + line-height: 1.32; + padding: 0 8px; + color: var(--jp-content-font-color3); +} +.jp-Dialog { + position: absolute; + z-index: 10000; + display: flex; + flex-direction: column; + align-items: center; + justify-content: center; + top: 0; + left: 0; + margin: 0; + padding: 0; + width: 100%; + height: 100%; + background: var(--jp-dialog-background); +} +.jp-Dialog-content { + display: flex; + flex-direction: column; + margin-left: auto; + margin-right: auto; + background: var(--jp-layout-color1); + padding: 24px 24px 12px; + min-width: 300px; + min-height: 150px; + max-width: 1000px; + max-height: 500px; + box-sizing: border-box; + box-shadow: var(--jp-elevation-z20); + word-wrap: break-word; + border-radius: var(--jp-border-radius); + font-size: var(--jp-ui-font-size1); + color: var(--jp-ui-font-color1); + resize: both; +} +.jp-Dialog-content.jp-Dialog-content-small { + max-width: 500px; +} +.jp-Dialog-button { + overflow: visible; +} +button.jp-Dialog-button:focus { + outline: 1px solid var(--jp-brand-color1); + outline-offset: 4px; + -moz-outline-radius: 0; +} +button.jp-Dialog-button:focus::-moz-focus-inner { + border: 0; +} +button.jp-Dialog-button.jp-mod-styled.jp-mod-accept:focus, +button.jp-Dialog-button.jp-mod-styled.jp-mod-warn:focus, +button.jp-Dialog-button.jp-mod-styled.jp-mod-reject:focus { + outline-offset: 4px; + -moz-outline-radius: 0; +} +button.jp-Dialog-button.jp-mod-styled.jp-mod-accept:focus { + outline: 1px solid var(--jp-accept-color-normal, var(--jp-brand-color1)); +} +button.jp-Dialog-button.jp-mod-styled.jp-mod-warn:focus { + outline: 1px solid var(--jp-warn-color-normal, var(--jp-error-color1)); +} +button.jp-Dialog-button.jp-mod-styled.jp-mod-reject:focus { + outline: 1px solid var(--jp-reject-color-normal, var(--md-grey-600)); +} +button.jp-Dialog-close-button { + padding: 0; + height: 100%; + min-width: unset; + min-height: unset; +} +.jp-Dialog-header { + display: flex; + justify-content: space-between; + flex: 0 0 auto; + padding-bottom: 12px; + font-size: var(--jp-ui-font-size3); + font-weight: 400; + color: var(--jp-ui-font-color1); +} +.jp-Dialog-body { + display: flex; + flex-direction: column; + flex: 1 1 auto; + font-size: var(--jp-ui-font-size1); + background: var(--jp-layout-color1); + color: var(--jp-ui-font-color1); + overflow: auto; +} +.jp-Dialog-footer { + display: flex; + flex-direction: row; + justify-content: flex-end; + align-items: center; + flex: 0 0 auto; + margin-left: -12px; + margin-right: -12px; + padding: 12px; +} +.jp-Dialog-checkbox { + padding-right: 5px; +} +.jp-Dialog-checkbox > input:focus-visible { + outline: 1px solid var(--jp-input-active-border-color); + outline-offset: 1px; +} +.jp-Dialog-spacer { + flex: 1 1 auto; +} +.jp-Dialog-title { + overflow: hidden; + white-space: nowrap; + text-overflow: ellipsis; +} +.jp-Dialog-body > .jp-select-wrapper { + width: 100%; +} +.jp-Dialog-body > button { + padding: 0 16px; +} +.jp-Dialog-body > label { + line-height: 1.4; + color: var(--jp-ui-font-color0); +} +.jp-Dialog-button.jp-mod-styled:not(:last-child) { + margin-right: 12px; +} +.jp-Input-Boolean-Dialog { + flex-direction: row-reverse; + align-items: end; + width: 100%; +} +.jp-Input-Boolean-Dialog > label { + flex: 1 1 auto; +} +.jp-MainAreaWidget > :focus { + outline: none; +} +.jp-MainAreaWidget .jp-MainAreaWidget-error { + padding: 6px; +} +.jp-MainAreaWidget .jp-MainAreaWidget-error > pre { + width: auto; + padding: 10px; + background: var(--jp-error-color3); + border: var(--jp-border-width) solid var(--jp-error-color1); + border-radius: var(--jp-border-radius); + color: var(--jp-ui-font-color1); + font-size: var(--jp-ui-font-size1); + white-space: pre-wrap; + word-wrap: break-word; +} +:root { + --md-red-50: #ffebee; + --md-red-100: #ffcdd2; + --md-red-200: #ef9a9a; + --md-red-300: #e57373; + --md-red-400: #ef5350; + --md-red-500: #f44336; + --md-red-600: #e53935; + --md-red-700: #d32f2f; + --md-red-800: #c62828; + --md-red-900: #b71c1c; + --md-red-A100: #ff8a80; + --md-red-A200: #ff5252; + --md-red-A400: #ff1744; + --md-red-A700: #d50000; + --md-pink-50: #fce4ec; + --md-pink-100: #f8bbd0; + --md-pink-200: #f48fb1; + --md-pink-300: #f06292; + --md-pink-400: #ec407a; + --md-pink-500: #e91e63; + --md-pink-600: #d81b60; + --md-pink-700: #c2185b; + --md-pink-800: #ad1457; + --md-pink-900: #880e4f; + --md-pink-A100: #ff80ab; + --md-pink-A200: #ff4081; + --md-pink-A400: #f50057; + --md-pink-A700: #c51162; + --md-purple-50: #f3e5f5; + --md-purple-100: #e1bee7; + --md-purple-200: #ce93d8; + --md-purple-300: #ba68c8; + --md-purple-400: #ab47bc; + --md-purple-500: #9c27b0; + --md-purple-600: #8e24aa; + --md-purple-700: #7b1fa2; + --md-purple-800: #6a1b9a; + --md-purple-900: #4a148c; + --md-purple-A100: #ea80fc; + --md-purple-A200: #e040fb; + --md-purple-A400: #d500f9; + --md-purple-A700: #a0f; + --md-deep-purple-50: #ede7f6; + --md-deep-purple-100: #d1c4e9; + --md-deep-purple-200: #b39ddb; + --md-deep-purple-300: #9575cd; + --md-deep-purple-400: #7e57c2; + --md-deep-purple-500: #673ab7; + --md-deep-purple-600: #5e35b1; + --md-deep-purple-700: #512da8; + --md-deep-purple-800: #4527a0; + --md-deep-purple-900: #311b92; + --md-deep-purple-A100: #b388ff; + --md-deep-purple-A200: #7c4dff; + --md-deep-purple-A400: #651fff; + --md-deep-purple-A700: #6200ea; + --md-indigo-50: #e8eaf6; + --md-indigo-100: #c5cae9; + --md-indigo-200: #9fa8da; + --md-indigo-300: #7986cb; + --md-indigo-400: #5c6bc0; + --md-indigo-500: #3f51b5; + --md-indigo-600: #3949ab; + --md-indigo-700: #303f9f; + --md-indigo-800: #283593; + --md-indigo-900: #1a237e; + --md-indigo-A100: #8c9eff; + --md-indigo-A200: #536dfe; + --md-indigo-A400: #3d5afe; + --md-indigo-A700: #304ffe; + --md-blue-50: #e3f2fd; + --md-blue-100: #bbdefb; + --md-blue-200: #90caf9; + --md-blue-300: #64b5f6; + --md-blue-400: #42a5f5; + --md-blue-500: #2196f3; + --md-blue-600: #1e88e5; + --md-blue-700: #1976d2; + --md-blue-800: #1565c0; + --md-blue-900: #0d47a1; + --md-blue-A100: #82b1ff; + --md-blue-A200: #448aff; + --md-blue-A400: #2979ff; + --md-blue-A700: #2962ff; + --md-light-blue-50: #e1f5fe; + --md-light-blue-100: #b3e5fc; + --md-light-blue-200: #81d4fa; + --md-light-blue-300: #4fc3f7; + --md-light-blue-400: #29b6f6; + --md-light-blue-500: #03a9f4; + --md-light-blue-600: #039be5; + --md-light-blue-700: #0288d1; + --md-light-blue-800: #0277bd; + --md-light-blue-900: #01579b; + --md-light-blue-A100: #80d8ff; + --md-light-blue-A200: #40c4ff; + --md-light-blue-A400: #00b0ff; + --md-light-blue-A700: #0091ea; + --md-cyan-50: #e0f7fa; + --md-cyan-100: #b2ebf2; + --md-cyan-200: #80deea; + --md-cyan-300: #4dd0e1; + --md-cyan-400: #26c6da; + --md-cyan-500: #00bcd4; + --md-cyan-600: #00acc1; + --md-cyan-700: #0097a7; + --md-cyan-800: #00838f; + --md-cyan-900: #006064; + --md-cyan-A100: #84ffff; + --md-cyan-A200: #18ffff; + --md-cyan-A400: #00e5ff; + --md-cyan-A700: #00b8d4; + --md-teal-50: #e0f2f1; + --md-teal-100: #b2dfdb; + --md-teal-200: #80cbc4; + --md-teal-300: #4db6ac; + --md-teal-400: #26a69a; + --md-teal-500: #009688; + --md-teal-600: #00897b; + --md-teal-700: #00796b; + --md-teal-800: #00695c; + --md-teal-900: #004d40; + --md-teal-A100: #a7ffeb; + --md-teal-A200: #64ffda; + --md-teal-A400: #1de9b6; + --md-teal-A700: #00bfa5; + --md-green-50: #e8f5e9; + --md-green-100: #c8e6c9; + --md-green-200: #a5d6a7; + --md-green-300: #81c784; + --md-green-400: #66bb6a; + --md-green-500: #4caf50; + --md-green-600: #43a047; + --md-green-700: #388e3c; + --md-green-800: #2e7d32; + --md-green-900: #1b5e20; + --md-green-A100: #b9f6ca; + --md-green-A200: #69f0ae; + --md-green-A400: #00e676; + --md-green-A700: #00c853; + --md-light-green-50: #f1f8e9; + --md-light-green-100: #dcedc8; + --md-light-green-200: #c5e1a5; + --md-light-green-300: #aed581; + --md-light-green-400: #9ccc65; + --md-light-green-500: #8bc34a; + --md-light-green-600: #7cb342; + --md-light-green-700: #689f38; + --md-light-green-800: #558b2f; + --md-light-green-900: #33691e; + --md-light-green-A100: #ccff90; + --md-light-green-A200: #b2ff59; + --md-light-green-A400: #76ff03; + --md-light-green-A700: #64dd17; + --md-lime-50: #f9fbe7; + --md-lime-100: #f0f4c3; + --md-lime-200: #e6ee9c; + --md-lime-300: #dce775; + --md-lime-400: #d4e157; + --md-lime-500: #cddc39; + --md-lime-600: #c0ca33; + --md-lime-700: #afb42b; + --md-lime-800: #9e9d24; + --md-lime-900: #827717; + --md-lime-A100: #f4ff81; + --md-lime-A200: #eeff41; + --md-lime-A400: #c6ff00; + --md-lime-A700: #aeea00; + --md-yellow-50: #fffde7; + --md-yellow-100: #fff9c4; + --md-yellow-200: #fff59d; + --md-yellow-300: #fff176; + --md-yellow-400: #ffee58; + --md-yellow-500: #ffeb3b; + --md-yellow-600: #fdd835; + --md-yellow-700: #fbc02d; + --md-yellow-800: #f9a825; + --md-yellow-900: #f57f17; + --md-yellow-A100: #ffff8d; + --md-yellow-A200: #ff0; + --md-yellow-A400: #ffea00; + --md-yellow-A700: #ffd600; + --md-amber-50: #fff8e1; + --md-amber-100: #ffecb3; + --md-amber-200: #ffe082; + --md-amber-300: #ffd54f; + --md-amber-400: #ffca28; + --md-amber-500: #ffc107; + --md-amber-600: #ffb300; + --md-amber-700: #ffa000; + --md-amber-800: #ff8f00; + --md-amber-900: #ff6f00; + --md-amber-A100: #ffe57f; + --md-amber-A200: #ffd740; + --md-amber-A400: #ffc400; + --md-amber-A700: #ffab00; + --md-orange-50: #fff3e0; + --md-orange-100: #ffe0b2; + --md-orange-200: #ffcc80; + --md-orange-300: #ffb74d; + --md-orange-400: #ffa726; + --md-orange-500: #ff9800; + --md-orange-600: #fb8c00; + --md-orange-700: #f57c00; + --md-orange-800: #ef6c00; + --md-orange-900: #e65100; + --md-orange-A100: #ffd180; + --md-orange-A200: #ffab40; + --md-orange-A400: #ff9100; + --md-orange-A700: #ff6d00; + --md-deep-orange-50: #fbe9e7; + --md-deep-orange-100: #ffccbc; + --md-deep-orange-200: #ffab91; + --md-deep-orange-300: #ff8a65; + --md-deep-orange-400: #ff7043; + --md-deep-orange-500: #ff5722; + --md-deep-orange-600: #f4511e; + --md-deep-orange-700: #e64a19; + --md-deep-orange-800: #d84315; + --md-deep-orange-900: #bf360c; + --md-deep-orange-A100: #ff9e80; + --md-deep-orange-A200: #ff6e40; + --md-deep-orange-A400: #ff3d00; + --md-deep-orange-A700: #dd2c00; + --md-brown-50: #efebe9; + --md-brown-100: #d7ccc8; + --md-brown-200: #bcaaa4; + --md-brown-300: #a1887f; + --md-brown-400: #8d6e63; + --md-brown-500: #795548; + --md-brown-600: #6d4c41; + --md-brown-700: #5d4037; + --md-brown-800: #4e342e; + --md-brown-900: #3e2723; + --md-grey-50: #fafafa; + --md-grey-100: #f5f5f5; + --md-grey-200: #eee; + --md-grey-300: #e0e0e0; + --md-grey-400: #bdbdbd; + --md-grey-500: #9e9e9e; + --md-grey-600: #757575; + --md-grey-700: #616161; + --md-grey-800: #424242; + --md-grey-900: #212121; + --md-blue-grey-50: #eceff1; + --md-blue-grey-100: #cfd8dc; + --md-blue-grey-200: #b0bec5; + --md-blue-grey-300: #90a4ae; + --md-blue-grey-400: #78909c; + --md-blue-grey-500: #607d8b; + --md-blue-grey-600: #546e7a; + --md-blue-grey-700: #455a64; + --md-blue-grey-800: #37474f; + --md-blue-grey-900: #263238; +} +:root { + --jp-private-code-span-padding: calc( (var(--jp-code-line-height) - 1) * var(--jp-code-font-size) / 2 ); +} +.jp-RenderedText { + text-align: left; + padding-left: var(--jp-code-padding); + line-height: var(--jp-code-line-height); + font-family: var(--jp-code-font-family); +} +.jp-RenderedText pre, +.jp-RenderedJavaScript pre, +.jp-RenderedHTMLCommon pre { + color: var(--jp-content-font-color1); + font-size: var(--jp-code-font-size); + border: none; + margin: 0; + padding: 0; +} +.jp-RenderedText pre a:link { + text-decoration: none; + color: var(--jp-content-link-color); +} +.jp-RenderedText pre a:hover { + text-decoration: underline; + color: var(--jp-content-link-color); +} +.jp-RenderedText pre a:visited { + text-decoration: none; + color: var(--jp-content-link-color); +} +.jp-RenderedText pre .ansi-black-fg { + color: #3e424d; +} +.jp-RenderedText pre .ansi-red-fg { + color: #e75c58; +} +.jp-RenderedText pre .ansi-green-fg { + color: #00a250; +} +.jp-RenderedText pre .ansi-yellow-fg { + color: #ddb62b; +} +.jp-RenderedText pre .ansi-blue-fg { + color: #208ffb; +} +.jp-RenderedText pre .ansi-magenta-fg { + color: #d160c4; +} +.jp-RenderedText pre .ansi-cyan-fg { + color: #60c6c8; +} +.jp-RenderedText pre .ansi-white-fg { + color: #c5c1b4; +} +.jp-RenderedText pre .ansi-black-bg { + background-color: #3e424d; + padding: var(--jp-private-code-span-padding) 0; +} +.jp-RenderedText pre .ansi-red-bg { + background-color: #e75c58; + padding: var(--jp-private-code-span-padding) 0; +} +.jp-RenderedText pre .ansi-green-bg { + background-color: #00a250; + padding: var(--jp-private-code-span-padding) 0; +} +.jp-RenderedText pre .ansi-yellow-bg { + background-color: #ddb62b; + padding: var(--jp-private-code-span-padding) 0; +} +.jp-RenderedText pre .ansi-blue-bg { + background-color: #208ffb; + padding: var(--jp-private-code-span-padding) 0; +} +.jp-RenderedText pre .ansi-magenta-bg { + background-color: #d160c4; + padding: var(--jp-private-code-span-padding) 0; +} +.jp-RenderedText pre .ansi-cyan-bg { + background-color: #60c6c8; + padding: var(--jp-private-code-span-padding) 0; +} +.jp-RenderedText pre .ansi-white-bg { + background-color: #c5c1b4; + padding: var(--jp-private-code-span-padding) 0; +} +.jp-RenderedText pre .ansi-black-intense-fg { + color: #282c36; +} +.jp-RenderedText pre .ansi-red-intense-fg { + color: #b22b31; +} +.jp-RenderedText pre .ansi-green-intense-fg { + color: #007427; +} +.jp-RenderedText pre .ansi-yellow-intense-fg { + color: #b27d12; +} +.jp-RenderedText pre .ansi-blue-intense-fg { + color: #0065ca; +} +.jp-RenderedText pre .ansi-magenta-intense-fg { + color: #a03196; +} +.jp-RenderedText pre .ansi-cyan-intense-fg { + color: #258f8f; +} +.jp-RenderedText pre .ansi-white-intense-fg { + color: #a1a6b2; +} +.jp-RenderedText pre .ansi-black-intense-bg { + background-color: #282c36; + padding: var(--jp-private-code-span-padding) 0; +} +.jp-RenderedText pre .ansi-red-intense-bg { + background-color: #b22b31; + padding: var(--jp-private-code-span-padding) 0; +} +.jp-RenderedText pre .ansi-green-intense-bg { + background-color: #007427; + padding: var(--jp-private-code-span-padding) 0; +} +.jp-RenderedText pre .ansi-yellow-intense-bg { + background-color: #b27d12; + padding: var(--jp-private-code-span-padding) 0; +} +.jp-RenderedText pre .ansi-blue-intense-bg { + background-color: #0065ca; + padding: var(--jp-private-code-span-padding) 0; +} +.jp-RenderedText pre .ansi-magenta-intense-bg { + background-color: #a03196; + padding: var(--jp-private-code-span-padding) 0; +} +.jp-RenderedText pre .ansi-cyan-intense-bg { + background-color: #258f8f; + padding: var(--jp-private-code-span-padding) 0; +} +.jp-RenderedText pre .ansi-white-intense-bg { + background-color: #a1a6b2; + padding: var(--jp-private-code-span-padding) 0; +} +.jp-RenderedText pre .ansi-default-inverse-fg { + color: var(--jp-ui-inverse-font-color0); +} +.jp-RenderedText pre .ansi-default-inverse-bg { + background-color: var(--jp-inverse-layout-color0); + padding: var(--jp-private-code-span-padding) 0; +} +.jp-RenderedText pre .ansi-bold { + font-weight: bold; +} +.jp-RenderedText pre .ansi-underline { + text-decoration: underline; +} +.jp-RenderedText[data-mime-type="application/vnd.jupyter.stderr"] { + background: var(--jp-rendermime-error-background); + padding-top: var(--jp-code-padding); +} +.jp-RenderedLatex { + color: var(--jp-content-font-color1); + font-size: var(--jp-content-font-size1); + line-height: var(--jp-content-line-height); +} +.jp-OutputArea-output.jp-RenderedLatex { + padding: var(--jp-code-padding); + text-align: left; +} +.jp-RenderedHTMLCommon { + color: var(--jp-content-font-color1); + font-family: var(--jp-content-font-family); + font-size: var(--jp-content-font-size1); + line-height: var(--jp-content-line-height); + padding-right: 20px; +} +.jp-RenderedHTMLCommon em { + font-style: italic; +} +.jp-RenderedHTMLCommon strong { + font-weight: bold; +} +.jp-RenderedHTMLCommon u { + text-decoration: underline; +} +.jp-RenderedHTMLCommon a:link { + text-decoration: none; + color: var(--jp-content-link-color); +} +.jp-RenderedHTMLCommon a:hover { + text-decoration: underline; + color: var(--jp-content-link-color); +} +.jp-RenderedHTMLCommon a:visited { + text-decoration: none; + color: var(--jp-content-link-color); +} +.jp-RenderedHTMLCommon h1, +.jp-RenderedHTMLCommon h2, +.jp-RenderedHTMLCommon h3, +.jp-RenderedHTMLCommon h4, +.jp-RenderedHTMLCommon h5, +.jp-RenderedHTMLCommon h6 { + line-height: var(--jp-content-heading-line-height); + font-weight: var(--jp-content-heading-font-weight); + font-style: normal; + margin: var(--jp-content-heading-margin-top) 0 var(--jp-content-heading-margin-bottom) 0; +} +.jp-RenderedHTMLCommon h1:first-child, +.jp-RenderedHTMLCommon h2:first-child, +.jp-RenderedHTMLCommon h3:first-child, +.jp-RenderedHTMLCommon h4:first-child, +.jp-RenderedHTMLCommon h5:first-child, +.jp-RenderedHTMLCommon h6:first-child { + margin-top: calc(0.5 * var(--jp-content-heading-margin-top)); +} +.jp-RenderedHTMLCommon h1:last-child, +.jp-RenderedHTMLCommon h2:last-child, +.jp-RenderedHTMLCommon h3:last-child, +.jp-RenderedHTMLCommon h4:last-child, +.jp-RenderedHTMLCommon h5:last-child, +.jp-RenderedHTMLCommon h6:last-child { + margin-bottom: calc(0.5 * var(--jp-content-heading-margin-bottom)); +} +.jp-RenderedHTMLCommon h1 { + font-size: var(--jp-content-font-size5); +} +.jp-RenderedHTMLCommon h2 { + font-size: var(--jp-content-font-size4); +} +.jp-RenderedHTMLCommon h3 { + font-size: var(--jp-content-font-size3); +} +.jp-RenderedHTMLCommon h4 { + font-size: var(--jp-content-font-size2); +} +.jp-RenderedHTMLCommon h5 { + font-size: var(--jp-content-font-size1); +} +.jp-RenderedHTMLCommon h6 { + font-size: var(--jp-content-font-size0); +} +.jp-RenderedHTMLCommon ul:not(.list-inline), +.jp-RenderedHTMLCommon ol:not(.list-inline) { + padding-left: 2em; +} +.jp-RenderedHTMLCommon ul { + list-style: disc; +} +.jp-RenderedHTMLCommon ul ul { + list-style: square; +} +.jp-RenderedHTMLCommon ul ul ul { + list-style: circle; +} +.jp-RenderedHTMLCommon ol { + list-style: decimal; +} +.jp-RenderedHTMLCommon ol ol { + list-style: upper-alpha; +} +.jp-RenderedHTMLCommon ol ol ol { + list-style: lower-alpha; +} +.jp-RenderedHTMLCommon ol ol ol ol { + list-style: lower-roman; +} +.jp-RenderedHTMLCommon ol ol ol ol ol { + list-style: decimal; +} +.jp-RenderedHTMLCommon ol, +.jp-RenderedHTMLCommon ul { + margin-bottom: 1em; +} +.jp-RenderedHTMLCommon ul ul, +.jp-RenderedHTMLCommon ul ol, +.jp-RenderedHTMLCommon ol ul, +.jp-RenderedHTMLCommon ol ol { + margin-bottom: 0; +} +.jp-RenderedHTMLCommon hr { + color: var(--jp-border-color2); + background-color: var(--jp-border-color1); + margin-top: 1em; + margin-bottom: 1em; +} +.jp-RenderedHTMLCommon > pre { + margin: 1.5em 2em; +} +.jp-RenderedHTMLCommon pre, +.jp-RenderedHTMLCommon code { + border: 0; + background-color: var(--jp-layout-color0); + color: var(--jp-content-font-color1); + font-family: var(--jp-code-font-family); + font-size: inherit; + line-height: var(--jp-code-line-height); + padding: 0; + white-space: pre-wrap; +} +.jp-RenderedHTMLCommon :not(pre) > code { + background-color: var(--jp-layout-color2); + padding: 1px 5px; +} +.jp-RenderedHTMLCommon table { + border-collapse: collapse; + border-spacing: 0; + border: none; + color: var(--jp-ui-font-color1); + font-size: var(--jp-ui-font-size1); + table-layout: fixed; + margin-left: auto; + margin-bottom: 1em; + margin-right: auto; +} +.jp-RenderedHTMLCommon thead { + border-bottom: var(--jp-border-width) solid var(--jp-border-color1); + vertical-align: bottom; +} +.jp-RenderedHTMLCommon td, +.jp-RenderedHTMLCommon th, +.jp-RenderedHTMLCommon tr { + vertical-align: middle; + padding: 0.5em; + line-height: normal; + white-space: normal; + max-width: none; + border: none; +} +.jp-RenderedMarkdown.jp-RenderedHTMLCommon td, +.jp-RenderedMarkdown.jp-RenderedHTMLCommon th { + max-width: none; +} +:not(.jp-RenderedMarkdown).jp-RenderedHTMLCommon td, +:not(.jp-RenderedMarkdown).jp-RenderedHTMLCommon th, +:not(.jp-RenderedMarkdown).jp-RenderedHTMLCommon tr { + text-align: right; +} +.jp-RenderedHTMLCommon th { + font-weight: bold; +} +.jp-RenderedHTMLCommon tbody tr:nth-child(odd) { + background: var(--jp-layout-color0); +} +.jp-RenderedHTMLCommon tbody tr:nth-child(even) { + background: var(--jp-rendermime-table-row-background); +} +.jp-RenderedHTMLCommon tbody tr:hover { + background: var(--jp-rendermime-table-row-hover-background); +} +.jp-RenderedHTMLCommon p { + text-align: left; + margin: 0; + margin-bottom: 1em; +} +.jp-RenderedHTMLCommon img { + -moz-force-broken-image-icon: 1; +} +.jp-RenderedHTMLCommon > img { + display: block; + margin-left: 0; + margin-right: 0; + margin-bottom: 1em; +} +[data-jp-theme-light=false] .jp-RenderedImage img.jp-needs-light-background { + background-color: var(--jp-inverse-layout-color1); +} +[data-jp-theme-light=true] .jp-RenderedImage img.jp-needs-dark-background { + background-color: var(--jp-inverse-layout-color1); +} +.jp-RenderedHTMLCommon img, +.jp-RenderedImage img, +.jp-RenderedHTMLCommon svg, +.jp-RenderedSVG svg { + max-width: 100%; + height: auto; +} +.jp-RenderedHTMLCommon img.jp-mod-unconfined, +.jp-RenderedImage img.jp-mod-unconfined, +.jp-RenderedHTMLCommon svg.jp-mod-unconfined, +.jp-RenderedSVG svg.jp-mod-unconfined { + max-width: none; +} +.jp-RenderedHTMLCommon .alert { + padding: var(--jp-notebook-padding); + border: var(--jp-border-width) solid transparent; + border-radius: var(--jp-border-radius); + margin-bottom: 1em; +} +.jp-RenderedHTMLCommon .alert-info { + color: var(--jp-info-color0); + background-color: var(--jp-info-color3); + border-color: var(--jp-info-color2); +} +.jp-RenderedHTMLCommon .alert-info hr { + border-color: var(--jp-info-color3); +} +.jp-RenderedHTMLCommon .alert-info > p:last-child, +.jp-RenderedHTMLCommon .alert-info > ul:last-child { + margin-bottom: 0; +} +.jp-RenderedHTMLCommon .alert-warning { + color: var(--jp-warn-color0); + background-color: var(--jp-warn-color3); + border-color: var(--jp-warn-color2); +} +.jp-RenderedHTMLCommon .alert-warning hr { + border-color: var(--jp-warn-color3); +} +.jp-RenderedHTMLCommon .alert-warning > p:last-child, +.jp-RenderedHTMLCommon .alert-warning > ul:last-child { + margin-bottom: 0; +} +.jp-RenderedHTMLCommon .alert-success { + color: var(--jp-success-color0); + background-color: var(--jp-success-color3); + border-color: var(--jp-success-color2); +} +.jp-RenderedHTMLCommon .alert-success hr { + border-color: var(--jp-success-color3); +} +.jp-RenderedHTMLCommon .alert-success > p:last-child, +.jp-RenderedHTMLCommon .alert-success > ul:last-child { + margin-bottom: 0; +} +.jp-RenderedHTMLCommon .alert-danger { + color: var(--jp-error-color0); + background-color: var(--jp-error-color3); + border-color: var(--jp-error-color2); +} +.jp-RenderedHTMLCommon .alert-danger hr { + border-color: var(--jp-error-color3); +} +.jp-RenderedHTMLCommon .alert-danger > p:last-child, +.jp-RenderedHTMLCommon .alert-danger > ul:last-child { + margin-bottom: 0; +} +.jp-RenderedHTMLCommon blockquote { + margin: 1em 2em; + padding: 0 1em; + border-left: 5px solid var(--jp-border-color2); +} +a.jp-InternalAnchorLink { + visibility: hidden; + margin-left: 8px; + color: var(--md-blue-800); +} +h1:hover .jp-InternalAnchorLink, +h2:hover .jp-InternalAnchorLink, +h3:hover .jp-InternalAnchorLink, +h4:hover .jp-InternalAnchorLink, +h5:hover .jp-InternalAnchorLink, +h6:hover .jp-InternalAnchorLink { + visibility: visible; +} +.jp-RenderedHTMLCommon kbd { + background-color: var(--jp-rendermime-table-row-background); + border: 1px solid var(--jp-border-color0); + border-bottom-color: var(--jp-border-color2); + border-radius: 3px; + box-shadow: inset 0 -1px 0 rgba(0, 0, 0, 0.25); + display: inline-block; + font-size: var(--jp-ui-font-size0); + line-height: 1em; + padding: 0.2em 0.5em; +} +.jp-RenderedHTMLCommon > *:last-child { + margin-bottom: 0.5em; +} +.thebe-output-busy-spinner-alt { + border: 2px solid #f3f3f3; + border-top: 2px solid #3498db; + border-radius: 50%; + width: 30px; + height: 30px; + -webkit-animation: thebeoutputspin 2s linear infinite; + animation: thebeoutputspin 1s linear infinite; +} +.thebe-output-busy-spinner { + height: 28px; + width: 28px; + border-radius: 50%; + background-color: rgba(250, 250, 250, 0.9); + z-index: 9999; + display: block; +} +.thebe-output-busy-spinner::after { + content: ""; + display: block; + position: relative; + top: 2px; + left: 2px; + width: 20px; + height: 20px; + border-style: solid; + border-color: #3498db; + border-top-color: transparent; + border-width: 2px; + border-radius: 50%; + -webkit-animation: thebeoutputspin 0.8s linear infinite; + animation: thebeoutputspin 0.8s linear infinite; +} +@-webkit-keyframes thebeoutputspin { + from { + -webkit-transform: rotate(0deg); + } + to { + -webkit-transform: rotate(360deg); + } +} +@keyframes thebeoutputspin { + from { + transform: rotate(0deg); + } + to { + transform: rotate(360deg); + } +} +.thebe-ipywidgets-placeholder { + display: flex; + flex-direction: column; + align-items: center; + font-size: 95%; +} +.thebe-ipywidgets-placeholder > pre { + font-size: 80%; + font-family: monospace; + margin: 8px 16px; +} +.thebe-output .jp-OutputArea-child > .lm-Widget { + overflow: auto; +} + +/* src/activate.css */ +.thebe-activate-button { + display: inline-block; + width: 120px; + height: 45px; + font-size: 1.25em; + cursor: pointer; +} + +/* src/status.css */ +.thebe-status { + display: inline-block; +} +.thebe-status-mounted { + display: inline-block; + text-align: left; + border: 1px black solid; + padding: 10px; +} +.thebe-status-stub { + display: inline-block; + vertical-align: middle; + text-transform: uppercase; + line-height: 1rem; +} +.thebe-status-field { + display: inline-block; + background-color: #ccc; + text-transform: uppercase; + font-family: monospace; + margin-left: 4px; + padding: 4px 8px; + border-radius: 1em; + line-height: 1rem; +} +.thebe-status-message { + text-transform: lowercase; + font-family: monospace; + margin-top: 4px; +} +.thebe-status-field.thebe-status-building { + background-color: yellow; +} +.thebe-status-field.thebe-status-launching { + background-color: yellow; +} +.thebe-status-field.thebe-status-starting { + background-color: yellow; +} +.thebe-status-field.thebe-status-server-ready { + background-color: cyan; +} +.thebe-status-field.thebe-status-session-ready { + background-color: lightgreen; +} +.thebe-status-field.thebe-status-failed { + background-color: red; +} +.thebe-status-field.thebe-status-closed { + background-color: grey; +} +.thebe-status-field.thebe-status-dead { + background-color: grey; +} +.thebe-status-field.thebe-status-busy { + background-color: yellow; +} + +/* src/index.css */ +.CodeMirror { + height: auto; + border: 1px solid grey; +} +.thebelab-cell, +.thebe-cell, +.thebe-cell > div { + margin-top: 8px; + margin-bottom: 8px; +} +.thebe-cell:focus-within, +.thebe:focus-within { + border-color: green; +} +.jp-OutputPrompt { + display: none; +} +.thebelab-busy, +.thebe-busy { + display: none; + vertical-align: middle; + padding-left: 2px; +} +.thebelab-busy-spinner, +.thebe-busy-spinner { + border: 2px solid #f3f3f3; + border-top: 2px solid #3498db; + border-radius: 50%; + width: 13px; + height: 13px; + -webkit-animation: spin 2s linear infinite; + animation: spin 1s linear infinite; +} +@keyframes spin { + 0% { + transform: 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100644 index 00000000..86af156a --- /dev/null +++ b/pr-preview/pr-707/types/codemirror.d.ts @@ -0,0 +1,11 @@ +import 'codemirror/lib/codemirror.css'; +import 'codemirror/mode/python/python.js'; +import 'codemirror/addon/hint/show-hint'; +import 'codemirror/addon/display/autorefresh'; +import 'codemirror/theme/abcdef.css'; +import 'codemirror/theme/darcula.css'; +import 'codemirror/theme/idea.css'; +import type { Options } from './options'; +import type { IThebeCell } from 'thebe-core'; +import type { CellDOMPlaceholder } from './types'; +export declare function setupCodemirror(options: Options, item: CellDOMPlaceholder, cell: IThebeCell, cellEl: HTMLElement, editorEl: HTMLElement, setBusy: (id: string) => void, clearBusy: (id: string) => void): any; diff --git a/pr-preview/pr-707/types/index.d.ts b/pr-preview/pr-707/types/index.d.ts new file mode 100644 index 00000000..04086da4 --- /dev/null +++ b/pr-preview/pr-707/types/index.d.ts @@ -0,0 +1,3 @@ +export * from './types'; +export * from './thebe'; +export declare function setupGlobals(): void; diff --git a/pr-preview/pr-707/types/options.d.ts b/pr-preview/pr-707/types/options.d.ts new file mode 100644 index 00000000..e57853bc --- /dev/null +++ b/pr-preview/pr-707/types/options.d.ts @@ -0,0 +1,55 @@ +import type { CoreOptions } from 'thebe-core'; +export interface ThebeOptions { + bootstrap?: boolean; + useBinder?: boolean; + useJupyterLite?: boolean; + requestKernel?: boolean; + selector?: string; + outputSelector?: string; + predefinedOutput?: boolean; + mountStatusWidget?: boolean; + mountActivateWidget?: boolean; + mountRunButton?: boolean; + mountRunAllButton?: boolean; + mountRestartButton?: boolean; + mountRestartallButton?: boolean; + preRenderHook?: (() => void) | null; + stripPrompts?: { + inPrompt?: string; + continuationPrompt?: string; + }; + stripOutputPrompts?: { + outPrompt?: string; + }; + codeMirrorConfig?: { + theme?: string; + readOnly?: boolean; + mode?: string; + autoRefresh?: boolean; + lineNumbers?: boolean; + styleActiveLine?: boolean; + matchBrackets?: boolean; + }; +} +export type Options = ThebeOptions & CoreOptions; +export declare const defaultSelector = "[data-executable]"; +export declare const defaultOutputSelector = "[data-output]"; +export declare const defaultOptions: ThebeOptions; +export declare function mergeOptions(options: Partial): Options; +export declare function resetPageConfig(): void; +export declare function getPageConfig(): Options; +export declare function getPageConfigValue(key: keyof Options): string | boolean | (() => void) | { + inPrompt?: string | undefined; + continuationPrompt?: string | undefined; +} | { + outPrompt?: string | undefined; +} | { + theme?: string | undefined; + readOnly?: boolean | undefined; + mode?: string | undefined; + autoRefresh?: boolean | undefined; + lineNumbers?: boolean | undefined; + styleActiveLine?: boolean | undefined; + matchBrackets?: boolean | undefined; +} | import("thebe-core").BinderOptions | import("thebe-core").SavedSessionOptions | import("thebe-core").KernelOptions | import("thebe-core").ServerSettings | null | undefined; +export declare function ensurePageConfigLoaded(): Options; diff --git a/pr-preview/pr-707/types/render.d.ts b/pr-preview/pr-707/types/render.d.ts new file mode 100644 index 00000000..f3ed8f64 --- /dev/null +++ b/pr-preview/pr-707/types/render.d.ts @@ -0,0 +1,17 @@ +import type { ThebeNotebook } from 'thebe-core'; +import type { Options } from './options'; +import type { CellDOMPlaceholder } from './types'; +/** + * findCells will find cells and outputs, associating outputs with cells + * in fifo priority + * + * Note: this mirrors the original thebe behaviour + * + * @param selector + * @param outputSelector + * @returns + */ +export declare function findCells(selector: string, outputSelector: string): CellDOMPlaceholder[]; +export declare function setButtonsBusy(id: string): void; +export declare function clearButtonsBusy(id: string): void; +export declare function renderAllCells(options: Options, notebook: ThebeNotebook, placeholders: CellDOMPlaceholder[]): CellDOMPlaceholder[]; diff --git a/pr-preview/pr-707/types/status.d.ts b/pr-preview/pr-707/types/status.d.ts new file mode 100644 index 00000000..0b1757f7 --- /dev/null +++ b/pr-preview/pr-707/types/status.d.ts @@ -0,0 +1,16 @@ +export declare class KernelStatus { + stub: string; + constructor(); + _registerHandlers(): void; + _messageElement(): Element | null | undefined; + _fieldElement(): Element | null | undefined; + /** + * Mount the status field widget. + * + * Contents of the element with class `thebe-status-field` will be replaced with a status widget + * + * @returns true if an element with the expected class was found + */ + mount(): boolean | undefined; + unmount(): Element | undefined; +} diff --git a/pr-preview/pr-707/types/thebe.d.ts b/pr-preview/pr-707/types/thebe.d.ts new file mode 100644 index 00000000..6a9d454c --- /dev/null +++ b/pr-preview/pr-707/types/thebe.d.ts @@ -0,0 +1,26 @@ +import type { Options } from './options'; +import { ThebeServer } from 'thebe-core'; +export * from './render'; +export { Options, mergeOptions, getPageConfig, getPageConfigValue, ensurePageConfigLoaded, } from './options'; +export * from './utils'; +export declare function mountStatusWidget(): void; +export declare function mountActivateWidget(options?: Options): void; +/** + * Bootstrap the library based on the configuration given. + * + * If bootstrap === true in the configuration and the library is loaded statically + * then this function will be called automatically on the document load event. + * + * @param {Object} options Object containing thebe options. + * Same structure as x-thebe-options. + * @returns {Promise} Promise for connected Kernel object + */ +export declare function bootstrap(opts?: Partial): Promise<{ + server: ThebeServer; + notebook: import("thebe-core/dist/types/notebook").default; + session?: undefined; +} | { + server: ThebeServer; + session: import("thebe-core/dist/types/session").default | null; + notebook: import("thebe-core/dist/types/notebook").default; +}>; diff --git a/pr-preview/pr-707/types/types.d.ts b/pr-preview/pr-707/types/types.d.ts new file mode 100644 index 00000000..18abfbd8 --- /dev/null +++ b/pr-preview/pr-707/types/types.d.ts @@ -0,0 +1,52 @@ +import type { CodeMirrorEditor } from '@jupyterlab/codemirror'; +import type { ThebeEventCb, ThebeEvents, ThebeNotebook, ThebeServer, ThebeSession, ThebeCoreGlobal } from 'thebe-core'; +import type { ActivateWidget } from './activate'; +import type { Options } from './options'; +import type { KernelStatus } from './status'; +import type { ThebeLiteGlobal } from 'thebe-lite'; +export interface CellDOMPlaceholder { + id: string; + placeholders: { + source: Element; + output?: Element; + }; +} +export type CellDOMItem = CellDOMPlaceholder & { + ui: { + cell: Element; + editor: Element; + output?: Element; + buttons: { + run?: Element; + runAll?: Element; + restart?: Element; + restartAll?: Element; + }; + }; +}; +export interface ThebeGlobal { + mountStatusWidget: () => void; + mountActivateWidget: () => void; + bootstrap: (options: Partial) => Promise; + notebook?: ThebeNotebook; + server?: ThebeServer; + session?: ThebeSession; + kernelStatus?: KernelStatus; + activateButton?: ActivateWidget; + events: ThebeEvents; + trigger: ThebeEventCb; + on: (event: string, cb: ThebeEventCb) => void; + one: (event: string, cb: ThebeEventCb) => void; + off: (event: string, cb: ThebeEventCb) => void; +} +declare global { + interface Window { + define: any; + requirejs: any; + thebeLite?: ThebeLiteGlobal; + thebeCore?: ThebeCoreGlobal; + thebe: ThebeGlobal; + thebelab: ThebeGlobal; + CodeMirror: CodeMirrorEditor; + } +} diff --git a/pr-preview/pr-707/types/utils.d.ts b/pr-preview/pr-707/types/utils.d.ts new file mode 100644 index 00000000..059d8f10 --- /dev/null +++ b/pr-preview/pr-707/types/utils.d.ts @@ -0,0 +1,4 @@ +import type { Options } from './options'; +export declare function stripPrompts({ selector, stripPrompts: prompts }: Options): void; +export declare function stripOutputPrompts({ selector, stripOutputPrompts: prompts }: Options): void; +export declare function randomId(): string;