windows-nt/Source/XPSP1/NT/shell/ext/mlang/utf8obj.h
2020-09-26 16:20:57 +08:00

53 lines
1.2 KiB
C++

#include "convbase.h"
#define HIGHT_SURROGATE_START 0xD800
#define HIGHT_SURROGATE_END 0xDBFF
#define LOW_SURROGATE_START 0xDC00
#define LOW_SURROGATE_END 0xDFFF
class CInccUTF8In : public CINetCodeConverter
{
private:
BOOL (CInccUTF8In::*m_pfnConv)(UCHAR tc);
BOOL (CInccUTF8In::*m_pfnCleanUp)();
WORD m_tcUnicode ;
DWORD m_tcSurrogateUnicode ;
int m_nByteFollow;
int m_nBytesUsed;
BOOL m_fSurrogatesPairs;
public:
CInccUTF8In(UINT uCodePage, int nCodeSet);
~CInccUTF8In() {}
virtual HRESULT ConvertChar(UCHAR tc, int cchSrc=-1);
virtual BOOL CleanUp();
virtual int GetUnconvertBytes();
virtual DWORD GetConvertMode();
virtual void SetConvertMode(DWORD mode);
private:
void Reset();
BOOL ConvMain(UCHAR tc);
BOOL CleanUpMain();
};
class CInccUTF8Out : public CINetCodeConverter
{
private:
BOOL m_fDoubleByte;
BYTE m_tcLeadByte;
WCHAR m_wchSurrogateHigh;
public:
CInccUTF8Out(UINT uCodePage, int nCodeSet);
~CInccUTF8Out() {}
virtual HRESULT ConvertChar(UCHAR tc, int cchSrc=-1);
virtual BOOL CleanUp();
virtual int GetUnconvertBytes();
virtual DWORD GetConvertMode();
virtual void SetConvertMode(DWORD mode);
private:
void Reset();
};