Allow the user to easily add words to the spell check dictionary

lib/spell-check-handler.coffee

@@ -1,9 +1,18 @@
 SpellChecker = require 'spellchecker'
 
-module.exports = ({id, text}) ->
+module.exports = ({id, text, dict}) ->
   SpellChecker.add("GitHub")
   SpellChecker.add("github")
 
+  dict.filter((word) ->
+    word
+  ).forEach (word) ->
+    word = word.trim()
+    capitalized = word.charAt(0).toUpperCase() + word.slice(1)
+    SpellChecker.add(word)
+    if word isnt capitalized
+      SpellChecker.add(capitalized)
+
   misspelledCharacterRanges = SpellChecker.checkSpelling(text)
 
   row = 0

lib/spell-check-task.coffee

@@ -18,8 +18,9 @@ class SpellCheckTask
       @constructor.task = null
 
   start: (text) ->
+    dict = atom.config.get('spell-check.dictionary')
     @constructor.task ?= new Task(require.resolve('./spell-check-handler'))
-    @constructor.task?.start {@id, text}, @constructor.dispatchMisspellings
+    @constructor.task?.start {@id, text, dict}, @constructor.dispatchMisspellings
 
   onDidSpellCheck: (callback) ->
     @constructor.callbacksById[@id] = callback

lib/spell-check-view.coffee

@@ -37,6 +37,9 @@ class SpellCheckView
     @disposables.add atom.config.onDidChange 'spell-check.grammars', =>
       @subscribeToBuffer()
 
+    @disposables.add atom.config.onDidChange 'spell-check.dictionary', =>
+      @subscribeToBuffer()
+
     @subscribeToBuffer()
 
     @disposables.add @editor.onDidDestroy(@destroy.bind(this))

package.json

@@ -24,6 +24,11 @@
         "text.plain.null-grammar"
       ],
       "description": "List of scopes for languages which will be checked for misspellings. See [the README](https://github.com/atom/spell-check#spell-check-package-) for more information on finding the correct scope for a specific language."
+    },
+    "dictionary": {
+      "type": "array",
+      "default": [],
+      "description": "list of custom words to accept"
     }
   },
   "devDependencies": {