VC字体编码转换

#include "stdafx.h"#include <string>#include <clocale>using namespace std;#include "charsetCvt.h"string ws2s(const wstring& ws){    string curLocale = setlocale(LC_ALL, NULL); // curLocale = "C";    setlocale(LC_ALL, "chs");     const wchar_t* _Source = ws.c_str();    size_t _Dsize = 2 * ws.size() + 1;    char *_Dest = new char[_Dsize];    memset(_Dest,0,_Dsize);    wcstombs(_Dest,_Source,_Dsize);    string result = _Dest;    delete []_Dest;    setlocale(LC_ALL, curLocale.c_str());    return result;} wstring s2ws(const string& s){    setlocale(LC_ALL, "chs");     const char* _Source = s.c_str();    size_t _Dsize = s.size() + 1;    wchar_t *_Dest = new wchar_t[_Dsize];    wmemset(_Dest, 0, _Dsize);    int nret = mbstowcs(_Dest,_Source,_Dsize);    wstring result = _Dest;    delete []_Dest;    setlocale(LC_ALL, "C");     return result;} wstring UTF2Uni(const char* src, std::wstring &t){    if (src == NULL)     {        return L"";    }        int size_s = strlen(src);    int size_d = size_s + 10;          //?        wchar_t *des = new wchar_t[size_d];    memset(des, 0, size_d * sizeof(wchar_t));        int s = 0, d = 0;    bool toomuchbyte = true; //set true to skip error prefix.        while (s < size_s && d < size_d)    {        unsigned char c = src[s];        if ((c & 0x80) == 0)         {            des[d++] += src[s++];        }         else if((c & 0xE0) == 0xC0)  ///< 110x-xxxx 10xx-xxxx        {            WCHAR &wideChar = des[d++];            wideChar  = (src[s + 0] & 0x3F) << 6;            wideChar |= (src[s + 1] & 0x3F);                        s += 2;        }        else if((c & 0xF0) == 0xE0)  ///< 1110-xxxx 10xx-xxxx 10xx-xxxx        {            WCHAR &wideChar = des[d++];                        wideChar  = (src[s + 0] & 0x1F) << 12;            wideChar |= (src[s + 1] & 0x3F) << 6;            wideChar |= (src[s + 2] & 0x3F);                        s += 3;        }         else if((c & 0xF8) == 0xF0)  ///< 1111-0xxx 10xx-xxxx 10xx-xxxx 10xx-xxxx         {            WCHAR &wideChar = des[d++];                        wideChar  = (src[s + 0] & 0x0F) << 18;            wideChar  = (src[s + 1] & 0x3F) << 12;            wideChar |= (src[s + 2] & 0x3F) << 6;            wideChar |= (src[s + 3] & 0x3F);                        s += 4;        }         else         {            WCHAR &wideChar = des[d++]; ///< 1111-10xx 10xx-xxxx 10xx-xxxx 10xx-xxxx 10xx-xxxx                         wideChar  = (src[s + 0] & 0x07) << 24;            wideChar  = (src[s + 1] & 0x3F) << 18;            wideChar  = (src[s + 2] & 0x3F) << 12;            wideChar |= (src[s + 3] & 0x3F) << 6;            wideChar |= (src[s + 4] & 0x3F);                        s += 5;        }    }        t = des;    delete[] des;    des = NULL;        return t;}int Uni2UTF( const wstring& strRes, char *utf8, int nMaxSize ){    if (utf8 == NULL) {        return -1;    }    int len = 0;    int size_d = nMaxSize;    for (wstring::const_iterator it = strRes.begin(); it != strRes.end(); ++it)    {        wchar_t wchar = *it;        if (wchar < 0x80)        {  //            //length = 1;            utf8[len++] = (char)wchar;        }        else if(wchar < 0x800)        {            //length = 2;                        if (len + 1 >= size_d)                return -1;                        utf8[len++] = 0xc0 | ( wchar >> 6 );            utf8[len++] = 0x80 | ( wchar & 0x3f );        }        else if(wchar < 0x10000 )        {            //length = 3;            if (len + 2 >= size_d)                return -1;                        utf8[len++] = 0xe0 | ( wchar >> 12 );            utf8[len++] = 0x80 | ( (wchar >> 6) & 0x3f );            utf8[len++] = 0x80 | ( wchar & 0x3f );        }        else if( wchar < 0x200000 )         {            //length = 4;            if (len + 3 >= size_d)                return -1;                        utf8[len++] = 0xf0 | ( (int)wchar >> 18 );            utf8[len++] = 0x80 | ( (wchar >> 12) & 0x3f );            utf8[len++] = 0x80 | ( (wchar >> 6) & 0x3f );            utf8[len++] = 0x80 | ( wchar & 0x3f );        }        }        return len;}string s2utfs(const  string&  strSrc){    string  strRes;    wstring  wstrUni = s2ws(strSrc);        char*  chUTF8 = new char[wstrUni.length() * 3];    memset(chUTF8,0x00,wstrUni.length() * 3);    Uni2UTF(wstrUni,chUTF8, wstrUni.length() * 3);    strRes = chUTF8;        delete  []chUTF8;    return strRes;}string  utfs2s(const string& strutf){    wstring  wStrTmp;    UTF2Uni( strutf.c_str(),wStrTmp);    return ws2s(wStrTmp);}