新浪围脖开放平台二"各种编码转换"

//.h

/**
*  @brief String opeartion.
*  @file  strconv.h
*  @author loach
*  @Email < loachmr@sina.com >
*
* Copyright (C) 1996-2010 SINA Corporation, All Rights Reserved
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*
*/

#ifndef __strConv_H__
#define __strConv_H__

#ifdef __cplusplus
extern "C" {
#endif

 /*
 ** Convert an ansi string to microsoft unicode, based on the
 ** current codepage settings for file apis.
 **
 ** Space to hold the returned string is obtained
 ** from malloc. please free
 */
 int lo_C2W(wchar_t** pout , const char *zinname);

 int lo_W2C(char** pout ,const wchar_t *zWide);

 int lo_W2Utf8(char** pout ,const wchar_t *zWide);

 /*
 ** Convert multibyte character string to UTF-8.  Space to hold the
 ** returned string is obtained from malloc().
 */
 int lo_C2Utf8(char** pout , const char *zinname);

#ifdef __cplusplus
}
#endif

#endif //__strConv_H__

 

//.cpp

/**
*  @brief String opeartion.
*  @file  strconv.cpp
*  @author loach
*  @Email < loachmr@sina.com >
*
* Copyright (C) 1996-2010 SINA Corporation, All Rights Reserved
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*
*/

#include "strconv.h"
#include <stdlib.h>

#ifdef __cplusplus
extern "C" {
#endif

#if (defined(WIN32) || defined(_WIN32) )

#include <windows.h>

 /*
 ** Convert an ansi string to microsoft unicode, based on the
 ** current codepage settings for file apis.
 **
 ** Space to hold the returned string is obtained
 ** from malloc.
 */
 int lo_C2W(wchar_t** pout ,const char *zinname)
 {
  wchar_t *zMbcsname = 0;
  int codepage = 0;
  int nByte = 0;

  if( !zinname || * zinname == '/0' )
   return 0;

  codepage = AreFileApisANSI() ? CP_ACP : CP_OEMCP;

  nByte = MultiByteToWideChar(codepage, 0, zinname, -1, NULL,0);
  zMbcsname = (wchar_t*)malloc( sizeof(wchar_t)*(nByte+1) );
  if( zMbcsname == 0 )
   return 0;

  nByte = MultiByteToWideChar(codepage, 0, zinname, -1, zMbcsname, nByte);
  if( nByte > 0 )
  {
   zMbcsname[nByte] = 0;
  }
  *pout = zMbcsname;
  return nByte;
 }

 /*
 ** Convert microsoft unicode to multibyte character string, based on the
 ** user's Ansi codepage.
 **
 ** Space to hold the returned string is obtained from
 ** malloc().
 */
 int lo_W2C(char** pout ,const wchar_t *zWide)
 {
  char *zname = 0;
  int  codepage = 0;
  int  nByte = 0;

  if( !zWide || *zWide == '/0' )
   return 0;

  codepage = AreFileApisANSI() ? CP_ACP : CP_OEMCP;

  nByte = WideCharToMultiByte(codepage, 0, zWide, -1, 0, 0, 0, 0);
  zname = (char*)malloc( nByte + 1 );
  if( zname == 0 ) return 0;

  nByte = WideCharToMultiByte(codepage, 0, zWide, -1, zname, nByte+1, 0, 0);
  if( nByte > 0 ) zname[nByte] = '/0';

  *pout = zname;
  return nByte;
 }

 int lo_W2Utf8(char** pout , const wchar_t *zWide)
 {
  int nByte = 0;
  char *zname = 0;

  if( !zWide || *zWide == '/0' )
   return 0;

  nByte = WideCharToMultiByte(CP_UTF8, 0, zWide, -1, 0, 0, 0, 0);
  zname = (char*)malloc( nByte +1 );
  if( zname == 0 )
  {
   return 0;
  }
  nByte = WideCharToMultiByte(CP_UTF8, 0, zWide, -1, zname, nByte+1,  0, 0);
  if( nByte > 0 )
  {
   zname[nByte] = '/0';
  }
  *pout = zname ;
  return nByte;
 }

 /*
 ** Convert multibyte character string to UTF-8.  Space to hold the
 ** returned string is obtained from malloc().
 */
 int lo_C2Utf8(char** pout , const char *zinname)
 {
  wchar_t *zTmp = 0;
  int outlen = 0;
  
  outlen = lo_C2W(&zTmp , zinname);
  if( !zTmp || outlen <= 0 )
  {
   return 0;
  }

  outlen = lo_W2Utf8(pout , zTmp);
  free( zTmp );

  return outlen ;
 }
#else
 // for other platform

#endif

#ifdef __cplusplus
}
#endif