UTF8与GBK字符编码之间的相互转换

来源：互联网发布：免费发送短信软件编辑：程序博客网时间：2024/06/09 23:04
class CChineseCode  {    public:        static void UTF_8ToUnicode(wchar_t* pOut,char *pText);  // 把UTF-8转换成Unicode        static void UnicodeToUTF_8(char* pOut,wchar_t* pText);  //Unicode 转换成UTF-8        static void UnicodeToGB2312(char* pOut,wchar_t uData);  // 把Unicode 转换成 GB2312          static void Gb2312ToUnicode(wchar_t* pOut,char *gbBuffer);// GB2312 转换成　Unicode        static void GB2312ToUTF_8(string& pOut,char *pText, int pLen);//GB2312 转为 UTF-8        static void UTF_8ToGB2312(string &pOut, char *pText, int pLen);//UTF-8 转为 GB2312  };  类实现  void CChineseCode::UTF_8ToUnicode(wchar_t* pOut,char *pText)  {     char* uchar = (char *)pOut;     uchar[1] = ((pText[0] & 0x0F) << 4) + ((pText[1] >> 2) & 0x0F);     uchar[0] = ((pText[1] & 0x03) << 6) + (pText[2] & 0x3F);     return;  }  void CChineseCode::UnicodeToUTF_8(char* pOut,wchar_t* pText)  {     // 注意 WCHAR高低字的顺序,低字节在前，高字节在后     char* pchar = (char *)pText;     pOut[0] = (0xE0 | ((pchar[1] & 0xF0) >> 4));     pOut[1] = (0x80 | ((pchar[1] & 0x0F) << 2)) + ((pchar[0] & 0xC0) >> 6);     pOut[2] = (0x80 | (pchar[0] & 0x3F));     return;  }  void CChineseCode::UnicodeToGB2312(char* pOut,wchar_t uData)  {     WideCharToMultiByte(CP_ACP,NULL,&uData,1,pOut,sizeof(wchar_t),NULL,NULL);     return;  }        void CChineseCode::Gb2312ToUnicode(wchar_t* pOut,char *gbBuffer)  {     ::MultiByteToWideChar(CP_ACP,MB_PRECOMPOSED,gbBuffer,2,pOut,1);     return ;  }  void CChineseCode::GB2312ToUTF_8(string& pOut,char *pText, int pLen)  {     char buf[4];     int nLength = pLen* 3;     char* rst = new char[nLength];     memset(buf,0,4);     memset(rst,0,nLength);     int i = 0;     int j = 0;           while(i < pLen)     {             //如果是英文直接复制就可以             if( *(pText + i) >= 0)             {                     rst[j++] = pText[i++];             }             else             {                     wchar_t pbuffer;                     Gb2312ToUnicode(&pbuffer,pText+i);                     UnicodeToUTF_8(buf,&pbuffer);                     unsigned short int tmp = 0;                     tmp = rst[j] = buf[0];                     tmp = rst[j+1] = buf[1];                     tmp = rst[j+2] = buf[2];                         j += 3;                     i += 2;             }     }     rst[j] = '';     //返回结果     pOut = rst;                   delete []rst;        return;  }  void CChineseCode::UTF_8ToGB2312(string &pOut, char *pText, int pLen)  {     char * newBuf = new char[pLen];     char Ctemp[4];     memset(Ctemp,0,4);     int i =0;     int j = 0;     while(i < pLen)     {         if(pText > 0)         {                 newBuf[j++] = pText[i++];                                 }         else                           {                 WCHAR Wtemp;                 UTF_8ToUnicode(&Wtemp,pText + i);                       UnicodeToGB2312(Ctemp,Wtemp);                               newBuf[j] = Ctemp[0];                 newBuf[j + 1] = Ctemp[1];                   i += 3;                     j += 2;            }     }     newBuf[j] = '';       pOut = newBuf;       delete []newBuf;     return;    }
链接： http://www.cnblogs.com/azraelly/archive/2012/06/21/2558360.html
0 0