UTF-8与GB2312之间的互换类.rar_ UTF-8toGB2312_UTF-8 GB2312_gb2312_mmi_ch

// ChineseCodeLib.cpp: implementation of the CChineseCodeLib class. // ////////////////////////////////////////////////////////////////////// #include "stdafx.h" #include "ChineseCodeLib.h" ////////////////////////////////////////////////////////////////////// // Construction/Destruction ////////////////////////////////////////////////////////////////////// CChineseCodeLib::CChineseCodeLib() { } CChineseCodeLib::~CChineseCodeLib() { } void CChineseCodeLib::UTF_8ToUnicode(WCHAR* 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 CChineseCodeLib::UnicodeToGB2312(char* pOut,unsigned short uData) { WideCharToMultiByte(CP_ACP,NULL,&uData,1,pOut,sizeof(WCHAR),NULL,NULL); return; } void CChineseCodeLib::Gb2312ToUnicode(WCHAR* pOut,char *gbBuffer) { ::MultiByteToWideChar(CP_ACP,MB_PRECOMPOSED,gbBuffer,2,pOut,1); return; } void CChineseCodeLib::UnicodeToUTF_8(char* pOut,WCHAR* 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[1] & 0xC0) >> 6); pOut[2] = (0x80 | (pchar[0] & 0x3F)); return; } void CChineseCodeLib::GB2312ToUTF_8(string& pOut,char *pText, int pLen) { char buf[4]; char* rst = new char[pLen + (pLen >> 2) + 2]; memset(buf,0,4); memset(rst,0,pLen + (pLen >> 2) + 2); 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 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] = '\0'; //返回结果 pOut = rst; delete []rst; return; } void CChineseCodeLib::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[i] > 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] = '\0'; pOut = newBuf; delete []newBuf; return; }