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libsvc/Modules/Lib/MJson/MJson.cpp

@@ -0,0 +1,59 @@
+#include "MJson.h"
+
+class FileGuard
+{
+public:
+	FileGuard() = delete;
+	~FileGuard()
+	{
+		if (_fp) fclose(_fp);
+		_fp = nullptr;
+	}
+	FileGuard(const char* _path)
+	{
+		if (_fp) fclose(_fp);
+		_wfopen_s(&_fp, to_wide_string(_path).c_str(), L"rb");
+	}
+	operator FILE* () const
+	{
+		return _fp;
+	}
+private:
+	FILE* _fp = nullptr;
+	static std::wstring to_wide_string(const std::string& input)
+	{
+		std::vector<wchar_t> WideString(input.length() * 2);
+		MultiByteToWideChar(
+			CP_UTF8,
+			0,
+			input.c_str(),
+			int(input.length()),
+			WideString.data(),
+			int(WideString.size())
+		);
+		return WideString.data();
+	}
+};
+
+MJson::MJson(const char* _path)
+{
+	const auto file = FileGuard(_path);
+	_document = yyjson_read_file(_path, YYJSON_READ_NOFLAG, nullptr, nullptr);
+	if (!_document)
+		throw std::exception("Json Parse Error !");
+	root = yyjson_doc_get_root(_document);
+}
+
+MJson::MJson(const std::string& _data, bool _read_from_string)
+{
+	if (_read_from_string)
+		_document = yyjson_read(_data.c_str(), _data.length(), YYJSON_READ_NOFLAG);
+	else
+	{
+		const auto file = FileGuard(_data.c_str());
+		_document = yyjson_read_fp(file, YYJSON_READ_NOFLAG, nullptr, nullptr);
+	}
+	if (!_document)
+		throw std::exception("Json Parse Error !");
+	root = yyjson_doc_get_root(_document);
+}