CStringW CFileDataIO::ReadStringUTF8()
{
UINT uRawSize = ReadUInt16();
const UINT uMaxShortRawSize = SHORT_RAW_ED2K_UTF8_STR;
if (uRawSize <= uMaxShortRawSize)
{
char acRaw[uMaxShortRawSize];
Read(acRaw, uRawSize);
WCHAR awc[uMaxShortRawSize];
int iChars = ByteStreamToWideChar(acRaw, uRawSize, awc, ARRSIZE(awc));
if (iChars >= 0)
return CStringW(awc, iChars);
return CStringW(acRaw, uRawSize); // use local codepage
}
else
{
Array<char> acRaw(uRawSize);
Read(acRaw, uRawSize);
Array<WCHAR> awc(uRawSize);
int iChars = ByteStreamToWideChar(acRaw, uRawSize, awc, uRawSize);
if (iChars >= 0)
return CStringW(awc, iChars);
return CStringW(acRaw, uRawSize); // use local codepage;
}
}
CString CFileDataIO::ReadString(bool bOptUTF8, UINT uRawSize)
{
#ifdef _UNICODE
const UINT uMaxShortRawSize = SHORT_RAW_ED2K_UTF8_STR;
if (uRawSize <= uMaxShortRawSize)
{
char acRaw[uMaxShortRawSize];
Read(acRaw, uRawSize);
if (uRawSize >= 3 && (UCHAR)acRaw[0] == 0xEFU && (UCHAR)acRaw[1] == 0xBBU && (UCHAR)acRaw[2] == 0xBFU)
{
WCHAR awc[uMaxShortRawSize];
int iChars = ByteStreamToWideChar(acRaw + 3, uRawSize - 3, awc, ARRSIZE(awc));
if (iChars >= 0)
return CStringW(awc, iChars);
}
else if (bOptUTF8)
{
WCHAR awc[uMaxShortRawSize];
//int iChars = ByteStreamToWideChar(acRaw, uRawSize, awc, ARRSIZE(awc));
int iChars = utf8towc(acRaw, uRawSize, awc, ARRSIZE(awc));
if (iChars >= 0)
return CStringW(awc, iChars);
}
return CStringW(acRaw, uRawSize); // use local codepage
}
else
{
Array<char> acRaw(uRawSize);
Read(acRaw, uRawSize);
if (uRawSize >= 3 && (UCHAR)acRaw[0] == 0xEFU && (UCHAR)acRaw[1] == 0xBBU && (UCHAR)acRaw[2] == 0xBFU)
{
Array<WCHAR> awc(uRawSize);
int iChars = ByteStreamToWideChar(acRaw + 3, uRawSize - 3, awc, uRawSize);
if (iChars >= 0)
return CStringW(awc, iChars);
}
else if (bOptUTF8)
{
Array<WCHAR> awc(uRawSize);
//int iChars = ByteStreamToWideChar(acRaw, uRawSize, awc, uRawSize);
int iChars = utf8towc(acRaw, uRawSize, awc, uRawSize);
if (iChars >= 0)
return CStringW(awc, iChars);
}
return CStringW(acRaw, uRawSize); // use local codepage
}
#else
CStringA strA;
Read(strA.GetBuffer(uRawSize), uRawSize);
strA.ReleaseBuffer(uRawSize);
return strA;
#endif
}
