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|
{$mode objfpc}
{$H+}
Program PtoP;
{
This file is part of the Free Pascal run time library.
Copyright (c) 1999-2002 by Michael Van Canneyt, member of
the Free Pascal development team
Pascal pretty print program
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.
**********************************************************************}
Uses SysUtils,Classes,PtoPu,CustApp, bufstream;
ResourceString
Version = 'Version 1.2';
ATitle = 'PToP';
Copyright = 'Copyright (c) 1999-2005 by the Free Pascal Development Team';
SErrNoInputOutput = 'No input and output file given';
Type
TPToP = Class(TCustomApplication)
Private
Infilename,
OutFileName,
ConfigFile : String;
BeVerbose : Boolean;
TheIndent,
TheBufSize,
TheLineSize : Integer;
Procedure Usage(ECode : Word);
Procedure GenOpts;
Procedure ProcessOpts;
Procedure DoVerbose(Sender : TObject; Const Msg : String);
Public
Procedure DoRun; override;
end;
Procedure TPToP.DoVerbose(Sender : TObject; Const Msg : String);
begin
Writeln(StdErr,Msg);
end;
Procedure TPToP.Usage(ECode : Word);
begin
Writeln ('ptop : Usage : ');
Writeln ('ptop [-v] [-i indent] [-b bufsize ][-c optsfile][-l linesize] infile outfile');
Writeln (' converts infile to outfile.');
Writeln (' -c : read options from optsfile');
Writeln (' -i : Set number of indent spaces.');
Writeln (' -l : Set maximum output linesize.');
Writeln (' -b : Use buffers of size bufsize');
Writeln (' -v : be verbose');
writeln ('ptop -g ofile');
writeln (' generate default options file');
Writeln ('ptop -h : This help');
halt(Ecode);
end;
Procedure TPToP.Genopts;
Var S : TFileStream;
begin
S:=TFileStream.Create(ConfigFile,fmCreate);
Try
GeneratecfgFile(S);
Finally
S.Free;
end;
end;
Procedure TPToP.ProcessOpts;
Var
S : String;
begin
{ Set defaults }
Infilename:='';
OutFileName:='';
ConfigFile:='';
TheIndent:=2;
TheBufSize:=255;
TheLineSize:=DefLineSize;
BeVerbose:=False;
S:=CheckOptions('icglbhv','');
If (S<>'') then
begin
Writeln(stderr,S);
Usage(1);
end;
if HasOption('h') then
usage(0);
TheIndent:=StrToIntDef(GetOptionValue('i',''),2);
TheBufSize:=StrToIntDef(GetOptionValue('b',''),255);
TheLineSize:=StrToIntDef(GetOptionValue('l',''),DefLineSize);
If HasOption('g') then
begin
ConfigFile:=GetOptionValue('g','');
GenOpts;
halt(0);
end;
ConfigFile:=GetOptionValue('c','');
BeVerbose:=HasOption('v');
If (ParamCount>1) then
begin
InFileName:=paramstr(ParamCount-1);
OutFilename:=Paramstr(ParamCount);
end;
end; { Of ProcessOpts }
Procedure TPToP.DoRun;
Var
F,InS,OutS,cfgS : TSTream;
PPrinter : TPrettyPrinter;
begin
ProcessOpts;
if BeVerbose then
begin
writeln(Title+' '+Version);
writeln(Copyright);
Writeln;
end;
If (Length(InfileName)=0) or (Length(OutFileName)=0) Then
begin
Writeln(stderr,SErrNoInputOutput);
Usage(1);
end;
Ins:=TMemoryStream.Create;
try
F:=TFileStream.Create(InFileName,fmOpenRead);
Try
Ins.CopyFrom(F,0);
Ins.Position:=0;
Finally
F.Free;
end;
OutS:=TwriteBufStream.Create(TFileStream.Create(OutFileName,fmCreate));
Try
If ConfigFile<>'' then
CfgS:=TFileStream.Create(ConfigFile,fmOpenRead)
else
CfgS:=Nil;
try
PPrinter:=TPrettyPrinter.Create;
Try
PPrinter.Indent:=TheIndent;
PPrinter.LineSize:=TheLineSize;
PPrinter.Source:=Ins;
PPrinter.Dest:=OutS;
PPrinter.Config:=CfgS;
If BeVerbose then
PPrinter.OnVerbose:=@DoVerbose;
PPrinter.PrettyPrint;
Finally
FreeAndNil(PPrinter);
end;
Finally
FreeAndNil(CfgS);
end;
Finally
FreeAndNil(OutS);
end;
Finally
FreeAndNil(Ins);
end;
Terminate;
end;
begin
With TPToP.Create(Nil) do
Try
Title:= ATitle;
StopOnException:=True;
Initialize;
Run;
Finally
Free;
end;
end.
|
