{

    FPDoc  -  Free Pascal Documentation Tool
    Copyright (C) 2000 - 2003 by
      Areca Systems GmbH / Sebastian Guenther, sg@freepascal.org

    See the file COPYING, 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.
}


program FPDoc;

uses
  SysUtils, Classes, Gettext, custapp,
  dGlobals,  // GLobal definitions, constants.
  dwriter,   // TFPDocWriter definition.
  dwlinear,  // Linear (abstract) writer
  dw_LaTeX,  // TLaTex writer
  dw_XML,    // XML writer
  dw_dxml,   // Delphi XML doc.
  dw_HTML,   // HTML writer
  dw_ipflin, // IPF writer (new linear output)
  dw_man,    // Man page writer
  dw_linrtf, // linear RTF writer
  dw_txt, fpdocproj, mkfpdoc;    // TXT writer


Type

  { TFPDocAplication }

  TFPDocAplication = Class(TCustomApplication)
  private
    FCreator : TFPDocCreator;
    FPackage : TFPDocPackage;
    FDryRun,
    FProjectFile : Boolean;
    FWriteProjectFile : String;
  Protected
    procedure OutputLog(Sender: TObject; const Msg: String);
    procedure ParseCommandLine;
    procedure Parseoption(const S: String);
    Procedure Usage(AnExitCode : Byte);
    Procedure DoRun; override;
  Public
    Constructor Create(AOwner : TComponent); override;
    Destructor Destroy; override;
    Function SelectedPackage : TFPDocPackage;
  end;


Procedure TFPDocAplication.Usage(AnExitCode : Byte);

Var
  I,P : Integer;
  S : String;
  L : TStringList;
  C : TFPDocWriterClass;
  Backend : String;

begin
  Writeln(Format(SCmdLineHelp,[ExtractFileName(Paramstr(0))]));
  Writeln(SUsageOption010);
  Writeln(SUsageOption020);
  Writeln(SUsageOption030);
  Writeln(SUsageOption040);
  Writeln(SUsageOption050);
  Writeln(SUsageOption060);
  Writeln(SUsageOption070);
  Writeln(SUsageOption080);
  Writeln(SUsageOption090);
  Writeln(SUsageOption100);
  Writeln(SUsageOption110);
  Writeln(SUsageOption120);
  Writeln(SUsageOption130);
  Writeln(SUsageOption140);
  Writeln(SUsageOption150);
  Writeln(SUsageOption155);
  Writeln(SUsageOption160);
  Writeln(SUsageOption170);
  Writeln(SUsageOption180);
  Writeln(SUsageOption190);
  Writeln(SUsageOption200);
  Writeln(SUsageOption210);
  Writeln(SUsageOption220);
  Writeln(SUsageOption230);
  Writeln(SUsageOption240);
  Writeln(SUsageOption250);
  Writeln(SUsageOption260);
  L:=TStringList.Create;
  Try
    Backend:=FCreator.OPtions.Backend;
    If (Backend='') then
      begin
      Writeln;
      Writeln(SUsageFormats);
      EnumWriters(L);
      For I:=0 to L.Count-1 do
        begin
        S:=L[i];
        P:=Pos('=',S);
        Writeln(Format(' %s - %s',[Copy(S,1,P-1)+Space(10-p),Copy(S,P+1,Length(S))]));
        end;
      Writeln(SUsageBackendHelp);
      end
    else
      begin
      Writeln;
      Writeln(Format(SUsageFormatSpecific,[Lowercase(backend)]));
      C:=GetWriterClass(Backend);
      C.Usage(L);
      If L.Count>0 then
        For I:=0 to (L.Count-1) div 2 do
          begin
          S:=L[i*2];
          Writeln(Format('%s %s',[S+Space(30-Length(S)),L[(i*2)+1]]));
          end;
      end;
  Finally
    L.Free;
  end;
  Halt(AnExitCode);
end;

destructor TFPDocAplication.Destroy;

begin
  FreeAndNil(FCreator);
  Inherited;
end;

function TFPDocAplication.SelectedPackage: TFPDocPackage;
begin
  Result:=FPackage;
  if (FPackage=Nil) or (FPackage.Name='') then
    begin
    Writeln(SNeedPackageName);
    Usage(1);
    end;
end;

procedure TFPDocAplication.OutputLog(Sender: TObject; const Msg: String);
begin
  Writeln(StdErr,Msg);
end;

procedure TFPDocAplication.ParseCommandLine;

  Function ProjectOpt(Const s : string) : boolean;

  begin
    Result:=(Copy(s,1,3)='-p=') or (Copy(s,1,10)='--project=');
  end;

  Function PackageOpt(Const s : string) : boolean;

  begin
    Result:=((Copy(s,1,3)='-a=') or (Copy(s,1,10)='--package='));
  end;

var
  i : Integer;
  s : string;

begin
  // Check project
  for i := 1 to ParamCount do
    begin
    s:=ParamStr(I);
    If ProjectOpt(S) then
      ParseOption(s);
    If (FCreator.Packages.Count=1) then
      FPackage:=FCreator.Packages[0]
    else if (FCreator.Options.DefaultPackageName<>'') then
      Fpackage:=FCreator.Packages.FindPackage(FCreator.Options.DefaultPackageName);
    end;
  If FCreator.Project.Packages.Count=0 then
    begin
    FPackage:=FCreator.Packages.Add as  TFPDocPackage;
    end;
  // Check package
  for i := 1 to ParamCount do
    begin
    s:=ParamStr(I);
    If PackageOpt(S) then
      ParseOption(s);
    end;
  for i := 1 to ParamCount do
    begin
    s:=ParamStr(I);
    If Not (ProjectOpt(s) or PackageOpt(S)) then
      ParseOption(s);
    end;
  SelectedPackage; // Will print error if none available.
end;

procedure TFPDocAplication.Parseoption(Const S : String);

  procedure AddDirToFileList(List: TStrings; const ADirName, AMask: String);

  Var
    Info : TSearchRec;
    D : String;

  begin
    if (ADirName<>'') and not DirectoryExists(ADirName) then
       OutputLog(Self,'Directory '+ADirName+' does not exist')
    else
      begin
      if (ADirName='.') or (ADirName='') then
        D:=''
      else
        D:=IncludeTrailingPathDelimiter(ADirName);
      If (FindFirst(D+AMask,0,Info)=0) then
        try
          Repeat
            If (Info.Attr and faDirectory)=0 then
              List.Add(D+Info.name);
          Until FindNext(Info)<>0;
        finally
          FindClose(Info);
        end;
      end;
  end;

  procedure AddToFileList(List: TStrings; const FileName: String);
  var
    f: Text;
    s: String;
  begin
    if Copy(FileName, 1, 1) = '@' then
    begin
      AssignFile(f, Copy(FileName, 2, Length(FileName)));
      Reset(f);
      while not EOF(f) do
      begin
        ReadLn(f, s);
        List.Add(s);
      end;
      Close(f);
    end else
      List.Add(FileName);
  end;

var
  i: Integer;
  Cmd, Arg: String;

begin
  if (s = '-h') or (s = '--help') then
    Usage(0)
  else if s = '--hide-protected' then
    FCreator.Options.HideProtected := True
  else if s = '--warn-no-node' then
    FCreator.Options.WarnNoNode := True
  else if s = '--show-private' then
    FCreator.Options.ShowPrivate := False
  else if s = '--stop-on-parser-error' then
    FCreator.Options.StopOnParseError := True
  else if s = '--dont-trim' then
    FCreator.Options.donttrim := True
  else
    begin
    i := Pos('=', s);
    if i > 0 then
      begin
      Cmd := Copy(s, 1, i - 1);
      Arg := Copy(s, i + 1, Length(s));
      end
    else
      begin
      Cmd := s;
      SetLength(Arg, 0);
      end;
    if (Cmd = '--project') or (Cmd='-p') then
      begin
      FProjectFile:=True;
      FCreator.LoadProjectFile(Arg);
      end
    else if (Cmd = '--descr') then
      AddToFileList(SelectedPackage.Descriptions, Arg)
    else if (Cmd = '--descr-dir') then
      AddDirToFileList(SelectedPackage.Descriptions, Arg, '*.xml')
    else if (Cmd = '-f') or (Cmd = '--format') then
      begin
      Arg:=UpperCase(Arg);
      If FindWriterClass(Arg)=-1 then
        WriteLn(StdErr, Format(SCmdLineInvalidFormat, [Arg]))
      else
        FCreator.Options.BackEnd:=Arg;
      end
    else if (Cmd = '-l') or (Cmd = '--lang') then
      FCreator.Options.Language := Arg
    else if (Cmd = '-i') or (Cmd = '--input') then
      AddToFileList(SelectedPackage.Inputs, Arg)
    else if (Cmd = '--input-dir') then
      begin
      AddDirToFileList(SelectedPackage.Inputs, Arg,'*.pp');
      AddDirToFileList(SelectedPackage.Inputs, Arg,'*.pas');
      end
    else if (Cmd = '-o') or (Cmd = '--output') then
      SelectedPackage.Output := Arg
    else if (Cmd = '-v') or (Cmd = '--verbose') then
      FCreator.Verbose:=true
    else if (Cmd = '-n') or (Cmd = '--dry-run') then
      FDryRun:=True
    else if (Cmd = '-t') or (Cmd = '--emit-notes') then
      FCreator.Options.EmitNotes := True
    else if Cmd = '--content' then
      SelectedPackage.ContentFile := Arg
    else if Cmd = '--import' then
      SelectedPackage.Imports.Add(Arg)
    else if Cmd = '--package' then
      begin
      If FProjectFile then
        FPackage:=FCreator.Packages.FindPackage(Arg)
      else
        FPackage.Name:=Arg;
      end
    else if Cmd = '--ostarget' then
      FCreator.Options.OSTarget := Arg
    else if Cmd = '--cputarget' then
      FCreator.Options.CPUTarget := Arg
    else if Cmd = '--mo-dir' then
      FCreator.Options.modir := Arg
    else if Cmd = '--parse-impl' then
      FCreator.Options.InterfaceOnly:=false
    else if Cmd = '--write-project' then
      FWriteProjectFile:=Arg
    else
      begin
      FCreator.Options.BackendOptions.Add(Cmd);
      FCreator.Options.BackendOptions.Add(Arg);
      end;
    end;
end;

Procedure TFPDocAplication.DoRun;

begin
{$IFDEF Unix}
  gettext.TranslateResourceStrings('/usr/local/share/locale/%s/LC_MESSAGES/fpdoc.mo');
{$ELSE}
  gettext.TranslateResourceStrings('intl/fpdoc.%s.mo');
{$ENDIF}
  WriteLn(STitle);
  WriteLn(Format(SVersion, [DefFPCVersion, DefFPCDate]));
  WriteLn(SCopyright);
  WriteLn;
  ParseCommandLine;
  if (FWriteProjectFile<>'') then
    FCreator.CreateProjectFile(FWriteProjectFile)
  else
    FCreator.CreateDocumentation(FPackage,FDryRun);
  WriteLn(SDone);
  Terminate;
end;

constructor TFPDocAplication.Create(AOwner: TComponent);
begin
  inherited Create(AOwner);
  StopOnException:=true;
  FCreator:=TFPDocCreator.Create(Self);
  FCreator.OnLog:=@OutputLog;
end;

begin
  With TFPDocAplication.Create(Nil) do
    try
      Run;
    finally
      Free;
    end;
end.