void JSONLayout::appendItem()

in src/main/cpp/jsonlayout.cpp [184:279]

• 72 lines of code
• 12 McCabe index (conditional complexity)

void JSONLayout::appendItem(const LogString& input, LogString& buf)
{
	/* add leading quote */
	buf.push_back(0x22);

	logchar specialChars[] =
	{
		0x08,   /* \b backspace         */
		0x09,   /* \t tab               */
		0x0a,   /* \n newline           */
		0x0c,   /* \f form feed         */
		0x0d,   /* \r carriage return   */
		0x22,   /* \" double quote      */
		0x5c,   /* \\ backslash         */
		0x00    /* terminating NULL for C-strings */
	};

	size_t start = 0;
	size_t found = input.find_first_of(specialChars, start);

	while (found != LogString::npos)
	{
		if (found > start)
		{
			buf.append(input, start, found - start);
		}

		switch (input[found])
		{
			case 0x08:
				/* \b backspace */
				buf.push_back(0x5c);
				buf.push_back('b');
				break;

			case 0x09:
				/* \t tab */
				buf.push_back(0x5c);
				buf.push_back('t');
				break;

			case 0x0a:
				/* \n newline */
				buf.push_back(0x5c);
				buf.push_back('n');
				break;

			case 0x0c:
				/* \f form feed */
				buf.push_back(0x5c);
				buf.push_back('f');
				break;

			case 0x0d:
				/* \r carriage return */
				buf.push_back(0x5c);
				buf.push_back('r');
				break;

			case 0x22:
				/* \" double quote */
				buf.push_back(0x5c);
				buf.push_back(0x22);
				break;

			case 0x5c:
				/* \\ backslash */
				buf.push_back(0x5c);
				buf.push_back(0x5c);
				break;

			default:
				buf.push_back(input[found]);
				break;
		}

		start = found + 1;

		if (found < input.size())
		{
			found = input.find_first_of(specialChars, start);
		}
		else
		{
			found = LogString::npos;
		}
	}

	if (start < input.size())
	{
		buf.append(input, start, input.size() - start);
	}

	/* add trailing quote */
	buf.push_back(0x22);
}