C++ (Cpp) uni_fromucs Examples

Example #1

File: unicode.cpp Project: lemonxiao0/peerproject

bool WideToChar(const wchar *Src,char *Dest,size_t DestSize)
{
  bool RetCode=true;
  *Dest=0; // Set 'Dest' to zero just in case the conversion will fail.

#ifdef _WIN_ALL
  if (WideCharToMultiByte(CP_ACP,0,Src,-1,Dest,(int)DestSize,NULL,NULL)==0)
    RetCode=false;

//#elif defined(_APPLE)
//  WideToUtf(Src,Dest,DestSize);

#elif defined(MBFUNCTIONS)
  size_t ResultingSize=wcstombs(Dest,Src,DestSize);
  if (ResultingSize==(size_t)-1)
    RetCode=false;
  if (ResultingSize==0 && *Src!=0)
    RetCode=false;

  if ((!RetCode || *Dest==0 && *Src!=0) && DestSize>NM && wcslen(Src)<NM)
  {
    /* Workaround for strange Linux Unicode functions bug.
       Some of wcstombs and mbstowcs implementations in some situations
       (we are yet to find out what it depends on) can return an empty
       string and success code if buffer size value is too large.
    */
    return(WideToChar(Src,Dest,NM));
  }

#else
  if (UnicodeEnabled())
  {
#if defined(_EMX) && !defined(_DJGPP)
    int len=Min(wcslen(Src)+1,DestSize-1);
    if (uni_fromucs((UniChar*)Src,len,Dest,(size_t*)&DestSize)==-1 ||
        DestSize>len*2)
      RetCode=false;
    Dest[DestSize]=0;
#endif
  }
  else
    for (int I=0;I<DestSize;I++)
    {
      Dest[I]=(char)Src[I];
      if (Src[I]==0)
        break;
    }
#endif

  // We tried to return the empty string if conversion is failed,
  // but it does not work well. WideCharToMultiByte returns 'failed' code
  // and partially converted string even if we wanted to convert only a part
  // of string and passed DestSize smaller than required for fully converted
  // string. Such call is the valid behavior in RAR code and we do not expect
  // the empty string in this case.

  return(RetCode);
}

Example #2

File: unicode.cpp Project: hkajcy/xcode_tool

bool WideToChar(const wchar *Src,char *Dest,size_t DestSize)
{
  bool RetCode=true;
#ifdef _WIN_32
  if (WideCharToMultiByte(CP_ACP,0,Src,-1,Dest,(int)DestSize,NULL,NULL)==0)
    RetCode=false;
#else
#ifdef _APPLE
  WideToUtf(Src,Dest,DestSize);
#else
#ifdef MBFUNCTIONS

  size_t ResultingSize=wcstombs(Dest,Src,DestSize);
  if (ResultingSize==(size_t)-1)
    RetCode=false;
  if (ResultingSize==0 && *Src!=0)
    RetCode=false;

  if ((!RetCode || *Dest==0 && *Src!=0) && DestSize>NM && strlenw(Src)<NM)
  {
    /* Workaround for strange Linux Unicode functions bug.
       Some of wcstombs and mbstowcs implementations in some situations
       (we are yet to find out what it depends on) can return an empty
       string and success code if buffer size value is too large.
    */
    return(WideToChar(Src,Dest,NM));
  }

#else
  if (UnicodeEnabled())
  {
#if defined(_EMX) && !defined(_DJGPP)
    int len=Min(strlenw(Src)+1,DestSize-1);
    if (uni_fromucs((UniChar*)Src,len,Dest,(size_t*)&DestSize)==-1 ||
        DestSize>len*2)
      RetCode=false;
    Dest[DestSize]=0;
#endif
  }
  else
    for (int I=0;I<DestSize;I++)
    {
      Dest[I]=(char)Src[I];
      if (Src[I]==0)
        break;
    }
#endif
#endif
#endif
  return(RetCode);
}

Example #3

File: unicode.cpp Project: Akkarinage/Neoncube

bool WideToChar(const wchar *Src,char *Dest,int DestSize)
{
  bool RetCode=true;
#ifdef _WIN_32
  if (WideCharToMultiByte(CP_ACP,0,Src,-1,Dest,DestSize,NULL,NULL)==0)
    RetCode=false;
#else
#ifdef _APPLE
  WideToUtf(Src,Dest,DestSize);
#else
#ifdef MBFUNCTIONS
  if (wcstombs(Dest,Src,DestSize)==-1)
    RetCode=false;
#else
  if (UnicodeEnabled())
  {
#if defined(_EMX) && !defined(_DJGPP)
    int len=Min(strlenw(Src)+1,DestSize-1);
    if (uni_fromucs((UniChar*)Src,len,Dest,(size_t*)&DestSize)==-1 ||
        DestSize>len*2)
      RetCode=false;
    Dest[DestSize]=0;
#endif
  }
  else
    for (int I=0;I<DestSize;I++)
    {
      Dest[I]=(char)Src[I];
      if (Src[I]==0)
        break;
    }
#endif
#endif
#endif
  return(RetCode);
}