UNICODE十六进制数组转成中英文

UNICODE十六进制的数组转成中英文

实现char*转换成中英文，每两个char合成一个wchar_t：

 // UNICODE十六进制数组转成中英文
 // hex array to wchar_t*
 // wchs == NULL, wchsLen as output(the size of wchs will be used)
 // error: return -1
 int YCodec::HexArray2WChars(char* hexarry, int hexarrylen, wchar_t* wchs, int* wchslen)
 {
     if(hexarry == NULL || hexarrylen<=0) return -1;
     if(wchs == NULL){
         *wchslen = hexarrylen/2 + (hexarrylen%2==0 ? 0 : 1);
         return 1;
     }
     memset(wchs, 0, *wchslen * sizeof(wchar_t));
     char tmp[3];
     char* phex = hexarry;
     wchar_t* pwchs = wchs;
     for(int i=0; i<hexarrylen; i++){
         memset(tmp, 0, 3);
         tmp[0] = *phex++;
         if(++i >= hexarrylen)    break;
         tmp[1] = *phex++;
         // two char to a hex
         unsigned short hex = 0x0;
         hex = (tmp[0] & 0xff) << 8;
         hex |= tmp[1] & 0xff;
         // hex to wchar_t
         *pwchs++ = (wchar_t)hex;
     }

     return 1;
 }

调用实例：

 <span style="white-space:pre">  </span>//wchar_t* unicode = NULL;
     char ascii[] = {0x62, 0x4b, 0x67, 0x3a,
                     0x53, 0xf7, 0x4e, 0x3a,
                     0x00, 0x31, 0x00, 0x38,
                     0x00, 0x38, 0x00, 0x38,
                     0x00, 0x37, 0x00, 0x36,
                     0x00, 0x35, 0x00, 0x35,
                     0x00, 0x32, 0x00, 0x31,
                     0x00, 0x30, 0x76, 0x84
     };
     int wchslen = 0;
     YCodec yCodec;
     // hex array to wchar_t*
     if(yCodec.HexArray2WChars(ascii, 32, NULL, &wchslen) != -1){
         wchar_t* wchs = new wchar_t[wchslen+1];
         memset(wchs, 0, sizeof(wchar_t)*(wchslen+1) );
         int n = yCodec.HexArray2WChars(ascii, 32, wchs, &wchslen);
         if(n != -1){
             // wchar_t to CString
             CString tmp;
             wchar_t * pwch = wchs;
             for(int i=0; i<wchslen; i++) tmp.AppendChar(*pwch++);
             m_Disp.SetWindowTextW(tmp);
         }

         delete []wchs;
     }

在MFC程序中测试通过。

已实现把0x62, 0x4b, 0x67, 0x3a, 0x53, 0xf7, 0x4e, 0x3a, 0x00, 0x31, 0x00, 0x38, 0x00, 0x38, 0x00, 0x38, 0x00, 0x37, 0x00, 0x36, 0x00, 0x35, 0x00, 0x35, 0x00, 0x32, 0x00, 0x31, 0x00, 0x30, 0x76, 0x84这一串unicode的十六进制字符数组转成中英文。

结果为：

手机号为18887655210的

基本测试通过，暂未发现神马问题。