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{$Mode objfpc}
{$H+}
program fpcsubst;
uses SysUtils,Classes,Usubst;
Const
BuildVersion={$I %FPCVERSION%};
BuildTarget={$I %FPCTARGET%};
Resourcestring
SUsage00 = 'Usage: %s [options]';
SUsage10 = 'Where options is one or more of';
SUSage20 = ' -i filename Set input file. Default is standard input';
SUSage30 = ' -o filename Set output file. Default is standard output.';
SUsage40 = ' -d name=value define name=value pair.';
SUsage50 = ' -h show this help and exit.';
SUsage60 = ' -u name remove name from list of name/value pairs.';
SUsage70 = ' -l filename read name/value pairs from filename';
SUsage80 = ' -b show builtin list and exit.';
SUsage90 = ' -v be verbose.';
SErrUnknownOption = 'Error: Unknown option.';
SErrArgExpected = 'Error: Option "%s" requires an argument.';
SErrNoSuchFile = 'Error: File "%s" does not exist.';
SErrBackupFailed = 'Error: Backup of file "%s" to "%s" failed.';
SErrDelBackupFailed = 'Error: Delete of old backup file "%s" failed.';
SWarnIgnoringFile = 'Warning: Ignoring non-existent file: ';
SWarnIgnoringPair = 'Warning: ignoring wrong name/value pair: ';
SStats = 'Replaced %d placeholders in %d lines.';
SSubstInLine = 'Replaced %s placeholders in line %d.';
SWarningDeprecated = 'Warning: This utility is deprecated and will be removed from fpc in the future. Please use fpcmkcfg instead.';
Var
List : TStringList;
InputFileName : String;
OutputFileName : String;
Verbose : Boolean;
SkipBackup : Boolean;
procedure Init;
begin
Verbose:=False;
List:=TStringList.Create;
AddToList(List,'FPCVERSION',BuildVersion);
AddToList(List,'FPCTARGET',BuildTarget);
AddToList(List,'PWD',GetCurrentDir);
AddToList(List,'BUILDDATE',DateToStr(Date));
AddToList(List,'BUILDTIME',TimeToStr(Time));
end;
Procedure Done;
begin
FreeAndNil(List);
end;
Procedure Usage;
begin
Writeln(Format(SUsage00,[ExtractFileName(Paramstr(0))]));
Writeln(SUsage10);
Writeln(SUsage20);
Writeln(SUsage30);
Writeln(SUsage40);
Writeln(SUsage50);
Writeln(SUsage60);
Writeln(SUsage70);
Writeln(SUsage80);
Writeln(SUsage90);
Halt(1);
end;
Procedure ShowBuiltIns;
var
I : Integer;
begin
for I:=0 to List.Count-1 do
Writeln(List[i]);
end;
Procedure AddFromFile(FN : String);
Var
F : Text;
S : String;
begin
If Not FileExists(FN) then
begin
Writeln(StdErr,SWarnIgnoringFile,FN);
Exit;
end;
Assign(F,FN);
Reset(F);
Try
While not EOF(F) do
begin
ReadLn(F,S);
If (Length(S)>0) and (not (S[1] in ['#',';'])) then
If not AddPair(List,S) then
If Verbose then
Writeln(StdErr,SWarnIgnoringPair,S)
end;
finally
Close(F);
end;
end;
Procedure UnknownOption(Const S : String);
begin
Writeln(SErrUnknownOption,S);
Usage;
end;
Procedure ProcessCommandline;
Var
I : Integer;
S : String;
Function GetOptArg : String;
begin
If I=ParamCount then
begin
Writeln(StdErr,Format(SErrArgExpected,[S]));
Halt(1);
end;
inc(I);
Result:=ParamStr(I);
end;
begin
I:=1;
While( I<=ParamCount) do
begin
S:=Paramstr(i);
If (Length(S)<=1) or (S[1]<>'-') then
UnknownOption(S)
else
case S[2] of
'v' : Verbose:=True;
'h' : Usage;
'b' : begin
ShowBuiltins;
halt(0);
end;
'l' : AddFromFile(GetOptArg);
'd' : AddPair(List,GetOptArg);
'u' : AddPair(List,GetOptArg+'=');
'i' : InputFileName:=GetOptArg;
'o' : OutputFileName:=GetoptArg;
's' : SkipBackup:=True;
else
UnknownOption(S);
end;
Inc(I);
end;
end;
Procedure DoFile;
Var
Fin,Fout : Text;
S,BFN : String;
N,LCount,RCount : Integer;
begin
If (InputFileName<>'') and not FileExists(InputFIleName) then
begin
Writeln(StdErr,Format(SErrNoSuchFile,[InputFileName]));
Halt(1)
end;
If (OutputFileName<>'')
and FileExists(OutputFileName)
and not SkipBackup then
begin
BFN:=ChangeFileExt(OutputFileName,'.bak');
If FileExists(BFN) and not DeleteFile(BFN) then
begin
Writeln(StdErr,Format(SErrDelBackupFailed,[BFN]));
Halt(1);
end;
If not RenameFile(OutputFileName,BFN) then
begin
Writeln(StdErr,Format(SErrBackupFailed,[OutputFileName,BFN]));
Halt(1);
end;
end;
Assign(Fin,InputFileName);
Assign(Fout,OutputFileName);
Reset(Fin);
Try
Rewrite(FOut);
Try
LCount:=0;
RCount:=0;
While Not EOF(Fin) do
begin
Inc(LCount);
ReadLn(Fin,S);
N:=DoSubstitutions(List,S);
If Verbose and (N>0) then
Writeln(StdErr,Format(SSubstInLine,[N,LCount]));
Inc(RCount,N);
Writeln(Fout,S);
end;
If Verbose then
Writeln(StdErr,Format(SStats,[RCount,LCount]));
Finally
Close(Fout);
end;
Finally
Close(Fin);
end;
end;
begin
WriteLn(StdErr,SWarningDeprecated);
Init;
Try
ProcessCommandLine;
DoFile;
Finally
Done;
end;
end.
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