/* -----------------------------------------------------------------------
* 関数名 ： CUnicodeF::sjis_to_utf8
* 機能概要： SJIS -> UTF-8 へ文字列のコード変換
* 引数 ： (I) char *pAnsiStr - 変換元SJIS文字列へのポインタ
* (O) int *nBytesOut - 変換後文字列のバイト数
* 戻り値 ： char* 変換後UTF-8文字列へのポインタ
*
* 処理概要：
* -----------------------------------------------------------------------
*/
char *CUnicodeF::sjis_to_utf8(const char *pAnsiStr, int *nBytesOut)
{
int nNum, nBytes;
wchar_t *pwcWork = sjis_to_utf16be( pAnsiStr, &nNum);
char *pcUtf8 = utf16be_to_utf8( pwcWork, &nBytes);
free( pwcWork);
*nBytesOut = nBytes;
return pcUtf8;
}
void WinCodepageConverter::_bufferToUnicode<1>(StringHolder<1> _destString, const ByteBuffer& _srcBuffer)
{
// An empty buffer needs special processing.
if(_srcBuffer.empty())
return;
const uint8* data;
size_t sz;
Utf8Buffer buf8;
switch(getCodepage())
{
case CP_UTF8:
{
// UTF-8 -> UTF-8
data = _srcBuffer.data();
sz = _srcBuffer.size();
break;
}
case CP_UTF16LE:
{
// UTF-16LE -> UTF-8
utf16le_to_utf8(buf8, _srcBuffer.data(), _srcBuffer.size());
data = buf8.data();
sz = buf8.size();
break;
}
case CP_UTF16BE:
{
// UTF-16BE -> UTF-8
utf16be_to_utf8(buf8, _srcBuffer.data(), _srcBuffer.size());
data = buf8.data();
sz = buf8.size();
break;
}
case CP_UTF32LE:
{
// UTF-32LE -> UTF-8
utf32le_to_utf8(buf8, _srcBuffer.data(), _srcBuffer.size());
data = buf8.data();
sz = buf8.size();
break;
}
case CP_UTF32BE:
{
// UTF-32BE -> UTF-8
utf32be_to_utf8(buf8, _srcBuffer.data(), _srcBuffer.size());
data = buf8.data();
sz = buf8.size();
break;
}
default:
{
// source code page -> UTF-16
size_t maxsz = _srcBuffer.size() * 2;
Utf16Buffer buf16(maxsz);
int r = MultiByteToWideChar(getCodepage(), 0,
char_cast<LPCSTR>(_srcBuffer.data()), _srcBuffer.size(),
char_cast<LPWSTR>(buf16.data()), buf16.size());
if(r == 0)
{
UnicodeSupport::_throwCouldNotConvert("UTF-16", getName(), _srcBuffer.data(), _srcBuffer.size());
return;
}
// UTF-16 -> UTF-8
utf16_to_utf8_unsafe(buf8, buf16.data(), r);
data = buf8.data();
sz = buf8.size();
}
}
_destString.append(data, sz);
}