60 lines
1.2 KiB
C
60 lines
1.2 KiB
C
|
|
||
|
|
#ifndef CONVBASE_H_
|
||
|
|
#define CONVBASE_H_
|
||
|
|
|
||
|
|
#define MAXOVERFLOWCHARS 16
|
||
|
|
|
||
|
|
class CINetCodeConverter
|
||
|
|
{
|
||
|
|
private:
|
||
|
|
UINT m_uCodePage;
|
||
|
|
int m_nCodeSet;
|
||
|
|
BOOL m_fOutput;
|
||
|
|
LPSTR m_lpDestStr;
|
||
|
|
int m_cchDest;
|
||
|
|
int m_cchOutput;
|
||
|
|
int m_cchOverflow;
|
||
|
|
UCHAR m_OverflowBuffer[MAXOVERFLOWCHARS];
|
||
|
|
|
||
|
|
public:
|
||
|
|
CINetCodeConverter();
|
||
|
|
CINetCodeConverter(UINT uCodePage, int nCodeSet);
|
||
|
|
virtual ~CINetCodeConverter() {}
|
||
|
|
int GetCodeSet() {return m_nCodeSet;}
|
||
|
|
HRESULT GetStringSizeA(LPCSTR lpSrcStr, int cchSrc, LPINT lpnSize = NULL);
|
||
|
|
HRESULT ConvertStringA(LPCSTR lpSrcStr, int cchSrc, LPSTR lpDestStr, int cchDest, LPINT lpnSize = NULL);
|
||
|
|
virtual int GetUnconvertBytes() = 0 ;
|
||
|
|
virtual DWORD GetConvertMode() = 0 ;
|
||
|
|
virtual void SetConvertMode(DWORD mode) = 0 ;
|
||
|
|
|
||
|
|
private:
|
||
|
|
HRESULT WalkString(LPCSTR lpSrcStr, int cchSrc, LPINT lpnSize);
|
||
|
|
BOOL EndOfDest(UCHAR tc);
|
||
|
|
BOOL OutputOverflowBuffer();
|
||
|
|
|
||
|
|
protected:
|
||
|
|
virtual HRESULT ConvertChar(UCHAR tc, int cchSrc=-1) = 0;
|
||
|
|
virtual BOOL CleanUp() = 0;
|
||
|
|
|
||
|
|
protected:
|
||
|
|
inline BOOL Output(UCHAR tc)
|
||
|
|
{
|
||
|
|
BOOL fDone = TRUE;
|
||
|
|
|
||
|
|
if (m_fOutput) {
|
||
|
|
if (m_cchOutput < m_cchDest) {
|
||
|
|
*m_lpDestStr++ = tc;
|
||
|
|
} else {
|
||
|
|
(void)EndOfDest(tc);
|
||
|
|
fDone = FALSE;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
m_cchOutput++;
|
||
|
|
|
||
|
|
return fDone;
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
#endif /* CONVBASE_H_ */
|