Method SaveString

source/YamlHelper.cpp:483–545

}

void YamlSaveHelper::SaveString(const char* key,  const char* value)
{
	if (value[0] == 0)
		value = "\"\"";

	// libyaml supports UTF-8 and not accented ANSI characters (GH#838)
	// . So convert ANSI to UTF-8, which is a 2-step process:

	// 1) ANSI -> unicode
	{
		int size = MultiByteToWideChar(CP_ACP, MB_ERR_INVALID_CHARS, value, -1, NULL, 0);
		if (size == 0)
			throw std::runtime_error("Unable to convert to unicode: " + std::string(value));
		if (size > m_wcStrSize)
		{
			delete[] m_pWcStr;
			m_pWcStr = new WCHAR[size];
			m_wcStrSize = size;
		}
		int res = MultiByteToWideChar(CP_ACP, MB_ERR_INVALID_CHARS, value, -1, m_pWcStr, m_wcStrSize);
		if (!res)
			throw std::runtime_error("Unable to convert to unicode: " + std::string(value));
	}

	// 2) unicode -> UTF-8
	{
		// NB. WC_ERR_INVALID_CHARS only defined when WIN_VER >= 0x600 - but stdafx.h defines it as 0x500
		int size = WideCharToMultiByte(CP_UTF8, 0/*WC_ERR_INVALID_CHARS*/, m_pWcStr, -1, NULL, 0, NULL, NULL);
		if (size == 0)
			throw std::runtime_error("Unable to convert to UTF-8: " + std::string(value));
		if (size > m_mbStrSize)
		{
			delete[] m_pMbStr;
			m_pMbStr = new char[size];
			m_mbStrSize = size;
		}
		int res = WideCharToMultiByte(CP_UTF8, 0/*WC_ERR_INVALID_CHARS*/, m_pWcStr, -1, m_pMbStr, m_mbStrSize, NULL, NULL);
		if (!res)
			throw std::runtime_error("Unable to convert to UTF-8: " + std::string(value));
	}

	// A string in quotes needs double-backslashes, otherwise backslash treated as an escape-character (GH#1499)
	if (std::string(m_pMbStr).find("\\") != std::string::npos)
	{
		std::string str(m_pMbStr);
		size_t pos = 0;
		while ((pos = str.find("\\", pos)) != std::string::npos)
		{
			str = str.replace(pos, 1, "\\\\");
			pos += 2;
		}
		const size_t size = str.size() + 1;
		delete[] m_pMbStr;
		m_pMbStr = new char[size];
		strncpy_s(m_pMbStr, size, str.c_str(), _TRUNCATE);
		m_mbStrSize = (int)size;
	}