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#include "rar.hpp"
static bool IsUnicode(byte *Data,int Size);
bool ReadTextFile(char *Name,StringList *List,bool Config,bool AbortOnError,
RAR_CHARSET SrcCharset,bool Unquote,bool SkipComments,
bool ExpandEnvStr)
{
char FileName[NM];
if (Config)
GetConfigName(Name,FileName,true);
else
strcpy(FileName,Name);
File SrcFile;
if (*FileName)
{
bool OpenCode=AbortOnError ? SrcFile.WOpen(FileName):SrcFile.Open(FileName);
if (!OpenCode)
{
if (AbortOnError)
ErrHandler.Exit(OPEN_ERROR);
return(false);
}
}
else
SrcFile.SetHandleType(FILE_HANDLESTD);
unsigned int DataSize=0,ReadSize;
const int ReadBlock=1024;
Array<char> Data(ReadBlock+5);
while ((ReadSize=SrcFile.Read(&Data[DataSize],ReadBlock))!=0)
{
DataSize+=ReadSize;
Data.Add(ReadSize);
}
memset(&Data[DataSize],0,5);
if (SrcCharset==RCH_UNICODE ||
SrcCharset==RCH_DEFAULT && IsUnicode((byte *)&Data[0],DataSize))
{
// Unicode in native system format, can be more than 2 bytes per character
Array<wchar> DataW(Data.Size()/2+1);
for (int I=2;I<Data.Size()-1;I+=2)
DataW[(I-2)/2]=(wchar)Data[I]+(wchar)Data[I+1]*256;
wchar *CurStr=&DataW[0];
Array<char> AnsiName;
while (*CurStr!=0)
{
wchar *NextStr=CurStr,*CmtPtr=NULL;
while (*NextStr!='\r' && *NextStr!='\n' && *NextStr!=0)
{
if (SkipComments && NextStr[0]=='/' && NextStr[1]=='/')
{
*NextStr=0;
CmtPtr=NextStr;
}
NextStr++;
}
*NextStr=0;
for (wchar *SpacePtr=(CmtPtr ? CmtPtr:NextStr)-1;SpacePtr>=CurStr;SpacePtr--)
{
if (*SpacePtr!=' ' && *SpacePtr!='\t')
break;
*SpacePtr=0;
}
if (*CurStr)
{
int Length=strlenw(CurStr);
int AddSize=4*(Length-AnsiName.Size()+1);
if (AddSize>0)
AnsiName.Add(AddSize);
if (Unquote && *CurStr=='\"' && CurStr[Length-1]=='\"')
{
CurStr[Length-1]=0;
CurStr++;
}
WideToChar(CurStr,&AnsiName[0],AnsiName.Size());
bool Expanded=false;
#if defined(_WIN_32) && !defined(_WIN_CE)
if (ExpandEnvStr && *CurStr=='%')
{
// expanding environment variables in Windows version
char ExpName[NM];
wchar ExpNameW[NM];
*ExpNameW=0;
int ret,retw=1;
ret=ExpandEnvironmentStrings(&AnsiName[0],ExpName,ASIZE(ExpName));
if (ret!=0 && WinNT())
retw=ExpandEnvironmentStringsW(CurStr,ExpNameW,ASIZE(ExpNameW));
Expanded=ret!=0 && ret<ASIZE(ExpName) &&
retw!=0 && retw<ASIZE(ExpNameW);
if (Expanded)
List->AddString(ExpName,ExpNameW);
}
#endif
if (!Expanded)
List->AddString(&AnsiName[0],CurStr);
}
CurStr=NextStr+1;
while (*CurStr=='\r' || *CurStr=='\n')
CurStr++;
}
}
else
{
char *CurStr=&Data[0];
while (*CurStr!=0)
{
char *NextStr=CurStr,*CmtPtr=NULL;
while (*NextStr!='\r' && *NextStr!='\n' && *NextStr!=0)
{
if (SkipComments && NextStr[0]=='/' && NextStr[1]=='/')
{
*NextStr=0;
CmtPtr=NextStr;
}
NextStr++;
}
*NextStr=0;
for (char *SpacePtr=(CmtPtr ? CmtPtr:NextStr)-1;SpacePtr>=CurStr;SpacePtr--)
{
if (*SpacePtr!=' ' && *SpacePtr!='\t')
break;
*SpacePtr=0;
}
if (*CurStr)
{
if (Unquote && *CurStr=='\"')
{
size_t Length=strlen(CurStr);
if (CurStr[Length-1]=='\"')
{
CurStr[Length-1]=0;
CurStr++;
}
}
#if defined(_WIN_32)
if (SrcCharset==RCH_OEM)
OemToChar(CurStr,CurStr);
#endif
bool Expanded=false;
#if defined(_WIN_32) && !defined(_WIN_CE)
if (ExpandEnvStr && *CurStr=='%')
{
// expanding environment variables in Windows version
char ExpName[NM];
int ret=ExpandEnvironmentStrings(CurStr,ExpName,ASIZE(ExpName));
Expanded=ret!=0 && ret<ASIZE(ExpName);
if (Expanded)
List->AddString(ExpName);
}
#endif
if (!Expanded)
List->AddString(CurStr);
}
CurStr=NextStr+1;
while (*CurStr=='\r' || *CurStr=='\n')
CurStr++;
}
}
return(true);
}
bool IsUnicode(byte *Data,int Size)
{
if (Size<4 || Data[0]!=0xff || Data[1]!=0xfe)
return(false);
for (int I=2;I<Size;I++)
if (Data[I]<32 && Data[I]!='\r' && Data[I]!='\n')
return(true);
return(false);
}
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