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{
This file is part of the Free Pascal run time library.
Copyright (c) 1999-2000 by the Free Pascal development team
<What does this file>
See the file COPYING.FPC, included in this distribution,
for details about the copyright.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
**********************************************************************}
{ ---------------------------------------------------------------------
Environment variable auxiliary routines
---------------------------------------------------------------------}
Const
FPC_EnvCount : Integer = -1;
Function FPCCountEnvVar(EP : PPChar) : integer;
begin
If (FPC_EnvCount=-1) then
begin
FPC_EnvCount:=0;
If (EP<>Nil) then
While (EP^<>Nil) do
begin
Inc(FPC_EnvCount);
Inc(EP);
end;
end;
Result:=FPC_EnvCount;
end;
Function FPCGetEnvVarFromP(EP : PPChar; EnvVar : String) : String;
var
hp : ppchar;
lenvvar,hs : string;
eqpos : longint;
begin
lenvvar:=upcase(envvar);
hp:=EP;
Result:='';
If (hp<>Nil) then
while assigned(hp^) do
begin
hs:=strpas(hp^);
eqpos:=pos('=',hs);
if upcase(copy(hs,1,eqpos-1))=lenvvar then
begin
Result:=copy(hs,eqpos+1,length(hs)-eqpos);
exit;
end;
inc(hp);
end;
end;
Function FPCGetEnvStrFromP(EP : PPChar; Index : Integer) : String;
begin
Result:='';
while assigned(EP^) and (Index>1) do
begin
dec(Index);
inc(EP);
end;
if Assigned(EP^) then
Result:=EP^;
end;
{ these are extremely inefficient, but not much we can do about it because
changing their result type based on the supported OS-interfaces will change
program behaviour if they are passed as a parameter to overloaded routines }
{$ifndef SYSUTILS_HAS_ANSISTR_ENVVAR_IMPL}
Function GetEnvironmentVariable(Const EnvVar : AnsiString) : AnsiString;
begin
result:=AnsiString(GetEnvironmentVariable(UnicodeString(EnvVar)));
end;
{$endif not SYSUTILS_HAS_ANSISTR_ENVVAR_IMPL}
{$ifndef SYSUTILS_HAS_UNICODESTR_ENVVAR_IMPL}
Function GetEnvironmentVariable(Const EnvVar : UnicodeString) : UnicodeString;
begin
result:=UnicodeString(GetEnvironmentVariable(AnsiString(EnvVar)));
end;
{$endif not SYSUTILS_HAS_UNICODESTR_ENVVAR_IMPL}
{ ---------------------------------------------------------------------
Application name
---------------------------------------------------------------------}
Function VendorName : String;
begin
If Assigned(OnGetVendorName) then
Result:=OnGetVendorName()
else
Result:='';
end;
Function ApplicationName : String;
begin
If Assigned(OnGetApplicationName) then
Result:=OnGetApplicationName()
else
Result:=ChangeFileExt(ExtractFileName(Paramstr(0)),'');
end;
{ ---------------------------------------------------------------------
Default implementations for AppConfigDir implementation.
---------------------------------------------------------------------}
Function DGetAppConfigDir(Global : Boolean) : String;
begin
Result:=ExcludeTrailingPathDelimiter(ExtractFilePath(ParamStr(0)));
end;
Function DGetAppConfigFile(Global : Boolean; SubDir : Boolean) : String;
begin
Result:=IncludeTrailingPathDelimiter(GetAppConfigDir(Global));
if SubDir then
Result:=IncludeTrailingPathDelimiter(Result+'Config');
Result:=Result+ApplicationName+ConfigExtension;
end;
Function GetAppConfigFile(Global : Boolean) : String;
begin
Result:=GetAppConfigFile(Global,False);
end;
Function DGetUserDir : String;
begin
Result:=ExtractFilePath(Paramstr(0));
end;
{ ---------------------------------------------------------------------
Fallback implementations for AppConfigDir implementation.
---------------------------------------------------------------------}
{
If a particular OS does it different:
- set the HAS_OSCONFIG define before including sysutils.inc.
- implement the functions.
Default config assumes a DOS-like configuration.
}
{$ifndef HAS_OSCONFIG}
Function GetAppConfigDir(Global : Boolean) : String;
begin
Result:=DGetAppConfigDir(Global);
end;
Function GetAppConfigFile(Global : Boolean; SubDir : Boolean) : String;
begin
Result:=DGetAppConfigFile(Global,Subdir);
end;
{$endif}
{ ---------------------------------------------------------------------
Fallback implementations for GetUserDir implementation.
---------------------------------------------------------------------}
{
If a particular OS does it different:
- set the HAVE_OSUSERDIR define before including sysutils.inc.
- implement the function.
Default makes it the application directory. Rationale is that the result
will be used for config files, and it should exist. The application directory
has this for sure.
}
{$ifndef HAS_OSUSERDIR}
Function GetUserDir : String;
begin
Result:=DGetUserDir;
end;
{$endif}
{ ---------------------------------------------------------------------
Get temporary directory name
---------------------------------------------------------------------}
{$ifndef HAS_TEMPDIR}
Function GetTempDir(Global : Boolean) : String;
begin
If Assigned(OnGetTempDir) then
Result:=OnGetTempDir(Global)
else
begin
Result:=GetEnvironmentVariable('TEMP');
If (Result='') Then
Result:=GetEnvironmentVariable('TMP');
end;
if (Result<>'') then
Result:=IncludeTrailingPathDelimiter(Result);
end;
{$endif}
Function GetTempDir : String;
begin
Result:=GetTempDir(True);
end;
{ ---------------------------------------------------------------------
Get temporary file name
---------------------------------------------------------------------}
{$ifndef HAS_TEMPFILE}
Function GetTempFileName(Const Dir,Prefix : String) : String;
Var
I : Integer;
Start : String;
begin
If Assigned(OnGetTempFile) then
Result:=OnGetTempFile(Dir,Prefix)
else
begin
If (Dir='') then
Start:=GetTempDir
else
Start:=IncludeTrailingPathDelimiter(Dir);
If (Prefix='') then
Start:=Start+'TMP'
else
Start:=Start+Prefix;
I:=0;
Repeat
Result:=Format('%s%.5d.tmp',[Start,I]);
Inc(I);
Until not (FileExists(Result) or DirectoryExists(Result));
end;
end;
{$endif}
Function GetTempFileName : String;
begin
Result:=GetTempFileName('','');
end;
{$if not(defined(win32)) and not(defined(win64))}
Function GetTempFileName(Dir,Prefix: PChar; uUnique: DWORD; TempFileName: PChar):DWORD;
Var
P,Buf : String;
L : Integer;
begin
P:=StrPas(Prefix);
if (uUnique<>0) then
P:=P+format('%.4x',[uUnique]);
Buf:=GetTempFileName(StrPas(Dir),P);
L:=Length(Buf);
If (L>0) then
Move(Buf[1],TempFileName^,L+1);
if (uUnique<>0) then
result:=uUnique
else
result:=1;
end;
{$endif}
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