C++ CharToWide函數代碼示例

// Convert archived names and comments to Unicode.
// Allows user to select a code page in GUI.
void ArcCharToWide(const char *Src,wchar *Dest,size_t DestSize,ACTW_ENCODING Encoding)
{
#if defined(_WIN_ALL) // Console Windows RAR.
  if (Encoding==ACTW_UTF8)
    UtfToWide(Src,Dest,DestSize);
  else
  {
    Array<char> NameA;
    if (Encoding==ACTW_OEM)
    {
      NameA.Alloc(DestSize+1);
      IntToExt(Src,&NameA[0],NameA.Size());
      Src=&NameA[0];
    }
    CharToWide(Src,Dest,DestSize);
  }
#else // RAR for Unix.
  if (Encoding==ACTW_UTF8)
    UtfToWide(Src,Dest,DestSize);
  else
    CharToWide(Src,Dest,DestSize);
#endif
  // Ensure that we return a zero terminate string for security reason.
  // While [Jni]CharToWide might already do it, be protected in case of future
  // changes in these functions.
  if (DestSize>0)
    Dest[DestSize-1]=0;
}

static void TestIconv(const Stroka& utf8, const Stroka& other, ECharset enc) {
    Wtroka wide0 = CharToWide(utf8, CODES_UTF8);
    Wtroka wide1 = CharToWide(other, enc);

    UNIT_ASSERT(wide0 == wide1);

    Stroka temp = WideToChar(wide0, CODES_UTF8);
    UNIT_ASSERT(temp == utf8);

    temp = WideToChar(wide0, enc);
    UNIT_ASSERT(temp == other);

    temp = Recode(enc, CODES_UTF8, other);
    UNIT_ASSERT(temp == utf8);

    temp = Recode(CODES_UTF8, enc, utf8);
    UNIT_ASSERT(temp == other);

    size_t read = 0;
    size_t written = 0;

    RECODE_RESULT res = RecodeToUnicode(enc, other.c_str(), wide1.begin(), other.size(), wide1.size(), read, written);
    UNIT_ASSERT(res == RECODE_OK);
    UNIT_ASSERT(read == other.size());
    UNIT_ASSERT(written == wide1.size());
    UNIT_ASSERT(wide0 == wide1);

    res = RecodeFromUnicode(enc, wide0.c_str(), temp.begin(), wide0.size(), temp.size(), read, written);
    UNIT_ASSERT(res == RECODE_OK);
    UNIT_ASSERT(read == wide0.size());
    UNIT_ASSERT(written == other.size());
    UNIT_ASSERT(temp == other);
}

void ConvertNameToFull(const wchar *Src,wchar *Dest)
{
  if (Src==NULL || *Src==0)
  {
    *Dest=0;
    return;
  }
#ifdef _WIN_32
  if (WinNT())
  {
    wchar FullName[NM],*NamePtr;
    if (GetFullPathNameW(Src,sizeof(FullName)/sizeof(FullName[0]),FullName,&NamePtr))
      strcpyw(Dest,FullName);
    else
      if (Src!=Dest)
        strcpyw(Dest,Src);
  }
  else
  {
    char AnsiName[NM];
    WideToChar(Src,AnsiName);
    ConvertNameToFull(AnsiName,AnsiName);
    CharToWide(AnsiName,Dest);
  }
#else
  char AnsiName[NM];
  WideToChar(Src,AnsiName);
  ConvertNameToFull(AnsiName,AnsiName);
  CharToWide(AnsiName,Dest);
#endif
}

void CDocListRetrieverFromDisc::FillDocInfo(SDocumentAttribtes& attrs)
{
    Stroka strFilePath = m_SmartFileFind.GetFoundFilePath(m_iCurPath);

    Stroka strURL;
    if (strFilePath == m_strSearchDir) {
        TStringBuf left, right;
        PathHelper::Split(strFilePath, left, right);
        strURL = ToString(right);
    } else
        strURL = strFilePath.substr(m_strSearchDir.size());

    if (strURL.empty())
        ythrow yexception() << "Can't build url for file \"" << strFilePath
                              << "\" with searchdir \"" << m_strSearchDir << "\".";

    TransformBackSlash(strURL);

    attrs.m_strUrl = strURL;

    Stroka strTime;
    if (stroka(m_strLTM) == "file") {
        CTime lw_time = m_SmartFileFind.GetFoundFileInfo(m_iCurPath).m_LastWriteTime;
        strTime = lw_time.Format("%d.%m.%Y %H:%M:%S");
    }

    if (strTime.empty())
        strTime = m_strStartTime;

    attrs.m_strTitle = CharToWide(strTime);
    attrs.m_strSource = strURL;
    attrs.m_strTitle = CharToWide(attrs.m_strSource);     // ??? rewriting
}

int CommandData::IsProcessFile(FileHeader &NewLhd,bool *ExactMatch,int MatchType)
{
  if (strlen(NewLhd.FileName)>=NM || wcslen(NewLhd.FileNameW)>=NM)
    return(0);
  bool Dir=(NewLhd.Flags & LHD_WINDOWMASK)==LHD_DIRECTORY;
  if (ExclCheck(NewLhd.FileName,Dir,false,true))
    return(0);
#ifndef SFX_MODULE
  if (TimeCheck(NewLhd.mtime))
    return(0);
  if ((NewLhd.FileAttr & ExclFileAttr)!=0 || InclAttrSet && (NewLhd.FileAttr & InclFileAttr)==0)
    return(0);
  if (!Dir && SizeCheck(NewLhd.FullUnpSize))
    return(0);
#endif
  char *ArgName;
  wchar *ArgNameW;
  FileArgs->Rewind();
  for (int StringCount=1;FileArgs->GetString(&ArgName,&ArgNameW);StringCount++)
  {
#ifndef SFX_MODULE
    bool Unicode=(NewLhd.Flags & LHD_UNICODE) || ArgNameW!=NULL && *ArgNameW!=0;
    if (Unicode)
    {
      wchar NameW[NM],ArgW[NM],*NamePtr=NewLhd.FileNameW;
      bool CorrectUnicode=true;
      if (ArgNameW==NULL || *ArgNameW==0)
      {
        if (!CharToWide(ArgName,ArgW) || *ArgW==0)
          CorrectUnicode=false;
        ArgNameW=ArgW;
      }
      if ((NewLhd.Flags & LHD_UNICODE)==0)
      {
        if (!CharToWide(NewLhd.FileName,NameW) || *NameW==0)
          CorrectUnicode=false;
        NamePtr=NameW;
      }
      if (CmpName(ArgNameW,NamePtr,MatchType))
      {
        if (ExactMatch!=NULL)
          *ExactMatch=wcsicompc(ArgNameW,NamePtr)==0;
        return(StringCount);
      }
      if (CorrectUnicode)
        continue;
    }
#endif
    if (CmpName(ArgName,NewLhd.FileName,MatchType))
    {
      if (ExactMatch!=NULL)
        *ExactMatch=stricompc(ArgName,NewLhd.FileName)==0;
      return(StringCount);
    }
  }
  return(0);
}

int CommandData::IsProcessFile(FileHeader &NewLhd,bool *ExactMatch,int MatchType)
{
  if (strlen(NewLhd.FileName)>=NM || strlenw(NewLhd.FileNameW)>=NM)
    return(0);
  if (ExclCheck(NewLhd.FileName,false))
    return(0);
#ifndef SFX_MODULE
  if (TimeCheck(NewLhd.mtime))
    return(0);
#endif
  char *ArgName;
  wchar *ArgNameW;
  FileArgs->Rewind();
  for (int StringCount=1;FileArgs->GetString(&ArgName,&ArgNameW);StringCount++)
  {
#ifndef SFX_MODULE
    bool Unicode=(NewLhd.Flags & LHD_UNICODE) || ArgNameW!=NULL;
    if (Unicode)
    {
      wchar NameW[NM],ArgW[NM],*NamePtr=NewLhd.FileNameW;
      if (ArgNameW==NULL)
      {
        CharToWide(ArgName,ArgW);
        ArgNameW=ArgW;
      }
      if ((NewLhd.Flags & LHD_UNICODE)==0)
      {
        CharToWide(NewLhd.FileName,NameW);
        NamePtr=NameW;
      }
      if (CmpName(ArgNameW,NamePtr,MatchType))
      {
        if (ExactMatch!=NULL)
          *ExactMatch=stricompcw(ArgNameW,NamePtr)==0;
        return(StringCount);
      }
      continue;
    }
#endif
    if (CmpName(ArgName,NewLhd.FileName,MatchType))
    {
      if (ExactMatch!=NULL)
        *ExactMatch=stricompc(ArgName,NewLhd.FileName)==0;
      return(StringCount);
    }
  }
  return(0);
}

void MakeNameUsable(char *Name,bool Extended)
{
#ifdef _WIN_ALL
  // In Windows we also need to convert characters not defined in current
  // code page. This double conversion changes them to '?', which is
  // catched by code below.
  size_t NameLength=strlen(Name);
  wchar NameW[NM];
  CharToWide(Name,NameW,ASIZE(NameW));
  WideToChar(NameW,Name,NameLength+1);
  Name[NameLength]=0;
#endif
  for (char *s=Name;*s!=0;s=charnext(s))
  {
    if (strchr(Extended ? "?*<>|\"":"?*",*s)!=NULL || Extended && (byte)*s<32)
      *s='_';
#ifdef _EMX
    if (*s=='=')
      *s='_';
#endif
#ifndef _UNIX
    if (s-Name>1 && *s==':')
      *s='_';
    // Remove ' ' and '.' before path separator, but allow .\ and ..\.
    if ((*s==' ' || *s=='.' && s>Name && !IsPathDiv(s[-1]) && s[-1]!='.') && IsPathDiv(s[1]))
      *s='_';
#endif
  }
}

bool CSentence::GetWSLemmaString(Wtroka& sLemmas, const CWordSequence& ws, bool bLem) const
{
    sLemmas = ws.GetCapitalizedLemma();

    if (bLem)
        return !sLemmas.empty();

    if (sLemmas.empty())
        for (int j = ws.FirstWord(); j <= ws.LastWord(); j++) {
            if (!sLemmas.empty())
                sLemmas += ' ';
            sLemmas += getWord(j)->GetOriginalText();
        }

    static const Wtroka trim_chars = CharToWide(" \"\'");
    TWtringBuf res = sLemmas;
    while (!res.empty() && trim_chars.find(res[0]) != TWtringBuf::npos)
        res.Skip(1);
    while (!res.empty() && trim_chars.find(res.back()) != TWtringBuf::npos)
        res.Chop(1);

    if (sLemmas.size() != res.size())
        sLemmas = ::ToWtring(res);

    return true;
}

void FindFile::SetMask(const char *FindMask)
{
  strcpy(FindFile::FindMask,FindMask);
  if (*FindMaskW==0)
    CharToWide(FindMask,FindMaskW);
  FirstCall=true;
}

bool TParserBase::RecodeToUtf8(Stroka& text)
{
    if (Encoding == CODES_UNKNOWN) {
        if (!IsStringASCII(~text, ~text + +text)) {
            AddError(Substitute("Unknown encoding: \"$0\".", text));
            return false;
        }

    } else if (Encoding == CODES_UTF8) {
        if (!IsUtf(text)) {
            AddError(Substitute("Invalid utf8: \"$0\".", text));
            return false;
        }

    } else {
        try {
            CharToWide(text, RecodeBuffer, Encoding);
            WideToUTF8(RecodeBuffer, text);
        } catch (yexception&) {
            AddError(Substitute("Cannot recode from $0 to utf8: \"$1\".", NameByCharset(Encoding), text));
            return false;
        }
    }

    return true;
}

bool FindFile::FastFind(const char *FindMask,const wchar *FindMaskW,struct FindData *fd,bool GetSymLink)
{
  fd->Error=false;
#ifndef _UNIX
  if (IsWildcard(FindMask,FindMaskW))
    return(false);
#endif    
#ifdef _WIN_32
  HANDLE hFind=Win32Find(INVALID_HANDLE_VALUE,FindMask,FindMaskW,fd);
  if (hFind==INVALID_HANDLE_VALUE)
    return(false);
  FindClose(hFind);
#else
  struct stat st;
  if (GetSymLink)
  {
#ifdef SAVE_LINKS
    if (lstat(FindMask,&st)!=0)
#else
    if (stat(FindMask,&st)!=0)
#endif
    {
      fd->Error=(errno!=ENOENT);
      return(false);
    }
  }
  else
    if (stat(FindMask,&st)!=0)
    {
      fd->Error=(errno!=ENOENT);
      return(false);
    }
#ifdef _DJGPP
  fd->FileAttr=_chmod(FindMask,0);
#elif defined(_EMX)
  fd->FileAttr=st.st_attr;
#else
  fd->FileAttr=st.st_mode;
#endif
  fd->IsDir=IsDir(st.st_mode);
  fd->Size=st.st_size;
  fd->mtime=st.st_mtime;
  fd->atime=st.st_atime;
  fd->ctime=st.st_ctime;
  fd->FileTime=fd->mtime.GetDos();
  strcpy(fd->Name,FindMask);

  *fd->NameW=0;
#ifdef _APPLE
  if (!LowAscii(fd->Name))
    UtfToWide(fd->Name,fd->NameW,sizeof(fd->NameW));
#elif defined(UNICODE_SUPPORTED)
  if (!LowAscii(fd->Name) && UnicodeEnabled())
    CharToWide(fd->Name,fd->NameW);
#endif
#endif
  fd->Flags=0;
  fd->IsDir=IsDir(fd->FileAttr);
  return(true);
}

size_t Archive::ReadCommentData(Array<byte> *CmtData,Array<wchar> *CmtDataW)
{
  bool Unicode=SubHead.SubFlags & SUBHEAD_FLAGS_CMT_UNICODE;
  if (!ReadSubData(CmtData,NULL))
    return(0);
  size_t CmtSize=CmtData->Size();
  if (Unicode)
  {
    CmtSize/=2;
    Array<wchar> DataW(CmtSize+1);
    RawToWide(CmtData->Addr(),DataW.Addr(),CmtSize);
    DataW[CmtSize]=0;
    size_t DestSize=CmtSize*4;
    CmtData->Alloc(DestSize+1);
    WideToChar(DataW.Addr(),(char *)CmtData->Addr(),DestSize);
    (*CmtData)[DestSize]=0;
    CmtSize=strlen((char *)CmtData->Addr());
    CmtData->Alloc(CmtSize);
    if (CmtDataW!=NULL)
    {
      *CmtDataW=DataW;
      CmtDataW->Alloc(CmtSize);
    }
  }
  else
    if (CmtDataW!=NULL)
    {
      CmtData->Push(0);
      CmtDataW->Alloc(CmtSize+1);
      CharToWide((char *)CmtData->Addr(),CmtDataW->Addr(),CmtSize+1);
      CmtData->Alloc(CmtSize);
      CmtDataW->Alloc(wcslen(CmtDataW->Addr()));
    }
  return(CmtSize);
}

static void GetPasswordText(wchar *Str,uint MaxLength)
{
  if (MaxLength==0)
    return;
#ifdef _WIN_ALL
  HANDLE hConIn=GetStdHandle(STD_INPUT_HANDLE);
  HANDLE hConOut=GetStdHandle(STD_OUTPUT_HANDLE);
  DWORD ConInMode,ConOutMode;
  DWORD Read=0;
  GetConsoleMode(hConIn,&ConInMode);
  GetConsoleMode(hConOut,&ConOutMode);
  SetConsoleMode(hConIn,ENABLE_LINE_INPUT);
  SetConsoleMode(hConOut,ENABLE_PROCESSED_OUTPUT|ENABLE_WRAP_AT_EOL_OUTPUT);

  ReadConsole(hConIn,Str,MaxLength-1,&Read,NULL);
  Str[Read]=0;
  SetConsoleMode(hConIn,ConInMode);
  SetConsoleMode(hConOut,ConOutMode);
#else
  char StrA[MAXPASSWORD];
#if defined(_EMX) || defined (__VMS) || defined(__AROS__)
  fgets(StrA,ASIZE(StrA)-1,stdin);
#elif defined(__sun)
  strncpyz(StrA,getpassphrase(""),ASIZE(StrA));
#else
  strncpyz(StrA,getpass(""),ASIZE(StrA));
#endif
  CharToWide(StrA,Str,MaxLength);
  cleandata(StrA,sizeof(StrA));
#endif
  Str[MaxLength-1]=0;
  RemoveLF(Str);
}

void  normalizeFQN(const wchar_t *source,wchar_t *dest)
{
  char scratch[512];
  WideToChar(source,scratch,512);
  char temp[512];
  normalizeFQN(scratch,temp);
  CharToWide(temp,dest,512);
}

void FindFile::SetMask(const char *FindMask)
{
  strcpy(FindFile::FindMask,NullToEmpty(FindMask));
#ifndef __BIONIC__
  if (*FindMaskW==0)
    CharToWide(FindMask,FindMaskW);
#endif
  FirstCall=true;
}