+ Initial check-in

utils/fpdoc/unitdiff.pp

@@ -0,0 +1,380 @@
+{
+    $Id$
+
+    FPDoc  -  Free Pascal Documentation Tool
+    Copyright (C) 2000 - 2003 by
+      Areca Systems GmbH / Sebastian Guenther, [email protected]
+
+    * Skeleton XML description file generator
+
+    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 MakeSkel;
+
+uses
+  SysUtils, Classes, Gettext,
+  dGlobals, PasTree, PParser,PScanner;
+
+resourcestring
+  SIdentifiersIn = 'Identifiers in file "%s"';
+  SCmdLineInvalidOption = 'Ignoring unknown option "%s"';
+  SErrNoInputFile = 'No input file specified';
+  SWarnAssumingList = 'Only one input file specified. Assuming --list option.';
+  SExtraIdentifier = 'Extra identifier in file "%s" : Name: %s';
+  SExtraTypedIdentifier = 'Extra identifier in file "%s" : Type %s, Name: %s';
+  SIdenticalUnits = 'Unit interfaces are identical.';
+  
+type
+  TCmdLineAction = (actionHelp, actionDiff,ActionList);
+
+  TSkelEngine = class(TFPDocEngine)
+  public
+    FList: TStringList;
+    Constructor Create;
+    Destructor Destroy;override;
+    function CreateElement(AClass: TPTreeElement; const AName: String;
+      AParent: TPasElement; AVisibility :TPasMemberVisibility;
+      const ASourceFilename: String; ASourceLinenumber: Integer): TPasElement; override;
+  end;
+
+Constructor TSkelEngine.Create;
+begin
+  Inherited Create;
+  FList:=TStringList.Create;
+  FList.Sorted:=True;
+end;
+
+Destructor TSkelEngine.Destroy;
+
+begin
+  FreeAndNil(FList);
+  Inherited;
+end;
+
+const
+  CmdLineAction: TCmdLineAction = actionDiff;
+  OSTarget: String = {$I %FPCTARGETOS%};
+  CPUTarget: String = {$I %FPCTARGETCPU%};
+
+var
+  InputFile1,
+  InputFile2 : String;
+  DocLang: String;
+  Engine1,
+  Engine2: TSkelEngine;
+  SparseList,
+  DisableArguments,
+  DisableProtected,
+  DisablePrivate,
+  DisableFunctionResults: Boolean;
+  
+  OutputName: String;
+  f: Text;
+
+
+function TSkelEngine.CreateElement(AClass: TPTreeElement; const AName: String;
+  AParent: TPasElement; AVisibility : TPasMemberVisibility;
+  const ASourceFilename: String; ASourceLinenumber: Integer): TPasElement;
+
+  Function ExamineThisNode(APasElement : TPasElement)  : Boolean;
+  
+  begin
+    Result:=Assigned(AParent) and (Length(AName) > 0) and
+            (not DisableArguments or (APasElement.ClassType <> TPasArgument)) and
+            (not DisableFunctionResults or (APasElement.ClassType <> TPasResultElement)) and
+            (not DisablePrivate or (AVisibility<>visPrivate)) and
+            (not DisableProtected or (AVisibility<>visProtected));
+  end;
+  
+begin
+  Result := AClass.Create(AName, AParent);
+  if AClass.InheritsFrom(TPasModule) then
+    CurModule := TPasModule(Result)
+  else if ExamineThisNode(Result) then
+    Flist.AddObject(Result.FullName,Result);
+end;
+
+
+Procedure Usage;
+
+begin
+  Writeln('Usage : ',ExtractFileName(Paramstr(0)),' [options] file1 file2');
+  Writeln('Where [options] is one or more of :');
+  Writeln(' --disable-arguments Do not check function arguments.');
+  Writeln(' --disable-private   Do not check class private fields.');
+  Writeln(' --disable-protected Do not check class protected fields.');
+  Writeln(' --help              Emit help.');
+  Writeln(' --input=cmdline     Input file to create skeleton for.');
+  Writeln('                     Use options are as for compiler.');
+  Writeln(' --lang=language     Use selected language.');
+  Writeln(' --list              List identifiers instead of making a diff');
+  Writeln(' --output=filename   Send output to file.');
+  Writeln(' --sparse            Sparse list/diff (skip type identification)');
+end;
+
+procedure ParseOption(const s: String);
+
+var
+  i: Integer;
+  Cmd, Arg: String;
+begin
+  if (s = '-h') or (s = '--help') then
+    CmdLineAction := actionHelp
+  else if s = '--disable-arguments' then
+    DisableArguments := True
+  else if s = '--disable-private' then
+    DisablePrivate := True
+  else if s = '--sparse' then
+    SparseList := True
+  else if s = '--disable-protected' then
+    begin
+    DisableProtected := True;
+    DisablePrivate :=True;
+    end
+  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 = '-l') or (Cmd = '--lang') then
+      DocLang := Arg
+    else if (Cmd = '-o') or (Cmd = '--output') then
+      OutputName := Arg
+    else
+      if (length(cmd)>0) and (cmd[1]='-') then
+         WriteLn(StdErr, Format(SCmdLineInvalidOption, [s]))
+      else if (InputFile1='') then
+        InputFile1:=Cmd
+      else if (InputFile2='') then
+        InputFile2:=Cmd
+      else
+        WriteLn(StdErr, Format(SCmdLineInvalidOption, [s]));
+  end;
+end;
+
+procedure ParseCommandLine;
+
+Const
+{$IFDEF Unix}
+  MoFileTemplate = '/usr/local/share/locale/%s/LC_MESSAGES/makeskel.mo';
+{$ELSE}
+  MoFileTemplate ='intl/makeskel.%s.mo';
+{$ENDIF}
+
+var
+  MOFilename: string;
+  i: Integer;
+begin
+  CmdLineAction := actionDiff;
+  DocLang:='';
+  SparseList:=False;
+  for i := 1 to ParamCount do
+    ParseOption(ParamStr(i));
+  If (DocLang<>'') then
+    begin
+    MOFilename:=Format(MOFileTemplate,[DocLang]);
+    if FileExists(MOFilename) then
+      gettext.TranslateResourceStrings(MoFileName)
+    else
+      writeln('NOTE: unable to find tranlation file ',MOFilename);
+    // Translate internal documentation strings
+    TranslateDocStrings(DocLang);
+    end;  
+  if (cmdLineAction<>ActionHelp) and (InputFile1='') and (InputFile2='') then
+    Writeln(StdErr,SErrNoInputFile)
+  else if (InputFile2='') and (CmdLineAction<>ActionList) then
+    begin
+    Writeln(StdErr,SWarnAssumingList);
+    CmdLineAction:=ActionList;
+    end;
+end;
+
+Function GetTypeDescription(El : TPasElement) : String;
+
+begin
+  If Assigned(El) then
+    Result:=El.ElementTypeName
+  else
+    Result:='(unknown)';  
+end;
+
+Procedure ListIdentifiers(Fn : String; List : TStrings);
+
+Var
+  I : Integer;
+
+begin
+  Writeln(f,Format(SIdentifiersIn,[FN]));
+  For I:=0 to List.Count-1 do
+    begin
+    If Not SparseList then
+      Write(GetTypeDescription(TPasElement(List.Objects[i])),' : ');
+    Writeln(List[i]);  
+    end;
+end;
+
+Procedure WriteExtra(FN,Id : String; El: TPaselement);
+
+begin
+  If SparseList then
+     Writeln(F,Format(SExtraIdentifier,[FN,ID]))
+  else   
+     Writeln(F,Format(SExtraTypedIdentifier,[FN,GetTypeDescription(El),ID]));
+end;
+
+Procedure DoExtra(FN : String; L : TStrings); 
+
+Var
+  I,Len : Integer;
+  S : String;
+
+begin
+  I:=0;  
+  While (I<L.Count) do
+    begin
+    WriteExtra(FN,L[I],TPasElement(L.Objects[I]));
+    // Delete possible subelements.
+    S:=L[I]+'.';
+    Len:=Length(S);
+    While (I+1<L.Count) and (CompareText(Copy(L[I+1],1,Len),S)=0) do
+      L.Delete(I+1);
+    Inc(I);
+    end;
+end;
+
+Procedure DiffIdentifiers(List1,List2 : TStrings);
+
+Var
+  L1,L2 : TStrings;
+  I,J : Integer;
+  
+begin
+  L1:=List1;
+  L2:=List2;
+  If List2.Count>List1.Count then
+    begin
+    L1:=List2;
+    L2:=List1;
+    end;
+  // Remove all common elements.
+  For I:=L1.Count-1 downto 0 do
+    begin
+    J:=L2.IndexOf(L1[i]);
+    If (J<>-1) then
+      begin
+      L1.Delete(I);
+      L2.Delete(J);
+      end;
+    end;
+  If (List1.Count=0) and (List2.Count=0) then
+    Writeln(F,SIdenticalUnits)
+  else
+    begin  
+    DoExtra(InputFile1,List1);
+    DoExtra(InputFile2,List2); 
+    end;
+end;
+
+
+begin
+  ParseCommandLine;
+  if CmdLineAction = actionHelp then
+    Usage
+  else
+    begin
+    Assign(f, OutputName);
+    Rewrite(f);
+    Try
+      Engine1:=TSkelEngine.Create;
+      Try
+        Engine1.SetPackageName('diff'); // do not localize
+        ParseSource(Engine1, InputFile1, OSTarget, CPUTarget);
+        if (InputFile2<>'') then
+          begin
+          Engine2:=TSkelEngine.Create;
+          Try
+            Engine2.SetPackageName('diff'); // do not localize
+            ParseSource(Engine2, InputFile2, OSTarget, CPUTarget);
+            If cmdLineAction=ActionList then
+              begin
+              ListIdentifiers(InputFile1,Engine1.FList);
+              ListIdentifiers(InputFile2,Engine2.FList);
+              end
+            else
+              DiffIdentifiers(Engine1.Flist,Engine2.Flist);  
+          finally
+            Engine2.Free;
+          end;  
+          end
+        else
+          ListIdentifiers(InputFile1,Engine1.FList); 
+      Finally
+        Engine1.Free;
+      end;    
+    Finally  
+      Close(f);
+    end;
+    end;
+end.
+
+
+{
+  $Log$
+  Revision 1.1  2004-11-14 21:18:58  michael
+  + Initial check-in
+
+  Revision 1.13  2004/09/13 16:04:52  peter
+    * fix nested for-loop with same index
+
+  Revision 1.12  2004/08/29 15:32:41  michael
+  + More intelligent handling of nodes. Do not write unused nodes.
+
+  Revision 1.11  2004/08/28 18:18:59  michael
+  + Do not write descr nodes for module when updating
+
+  Revision 1.10  2004/08/28 18:15:14  michael
+  + Check whether outputfile not in inputfilenames
+
+  Revision 1.9  2004/08/28 18:04:06  michael
+  + Added update mode
+
+  Revision 1.8  2004/08/25 07:16:43  michael
+  + Improved translation handling
+
+  Revision 1.7  2004/08/24 14:48:25  michael
+  + Translate now called correctly...
+
+  Revision 1.6  2004/05/01 20:13:40  marco
+   * got fed up with exceptions on file not found.  Fileresolver now raises a
+  	EFileNotFound error, and makeskel catches and exists gracefully
+
+  Revision 1.5  2003/11/28 12:51:37  sg
+  * Added support for source references
+
+  Revision 1.4  2003/09/02 13:26:47  mattias
+  MG: makeskel now ignores missing translation file
+
+  Revision 1.3  2003/05/07 16:31:32  sg
+  * Fixed a severe memory corruption problem on termination
+
+  Revision 1.2  2003/03/28 13:01:36  michael
+  + Patch from Charlie/iNQ to work with new scanner/parser
+
+  Revision 1.1  2003/03/17 23:03:20  michael
+  + Initial import in CVS
+}