Function FromUtf8

src/utils/xstring.cpp:588–632

namespace UtfConverter
{
    std::wstring FromUtf8(const std::string& utf8string)
    {
        size_t widesize = utf8string.length();
        if (sizeof(wchar_t) == 2)
        {
            wchar_t* widestringnative = new wchar_t[widesize+1];
            const UTF8* sourcestart = reinterpret_cast<const UTF8*>(utf8string.c_str());
            const UTF8* sourceend = sourcestart + widesize;
            UTF16* targetstart = reinterpret_cast<UTF16*>(widestringnative);
            UTF16* targetend = targetstart + widesize+1;
            ConversionResult res = ConvertUTF8toUTF16(&sourcestart, sourceend, &targetstart, targetend, strictConversion);
            if (res != conversionOK)
            {
                delete [] widestringnative;
                throw std::exception();
            }
            *targetstart = 0;
            std::wstring resultstring(widestringnative);
            delete [] widestringnative;
            return resultstring;
        }
        else if (sizeof(wchar_t) == 4) // somewhat pointless as it's always 2 on WIN32, but whatever.
        {
            wchar_t* widestringnative = new wchar_t[widesize];
            const UTF8* sourcestart = reinterpret_cast<const UTF8*>(utf8string.c_str());
            const UTF8* sourceend = sourcestart + widesize;
            UTF32* targetstart = reinterpret_cast<UTF32*>(widestringnative);
            UTF32* targetend = targetstart + widesize;
            ConversionResult res = ConvertUTF8toUTF32(&sourcestart, sourceend, &targetstart, targetend, strictConversion);
            if (res != conversionOK)
            {
                delete [] widestringnative;
                throw std::exception();
            }
            *targetstart = 0;
            std::wstring resultstring(widestringnative);
            delete [] widestringnative;
            return resultstring;
        }
        else
        {
            throw std::exception();
        }
        return L"";
    }

    std::string ToUtf8(const std::wstring& widestring)
    {