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{
This file is part of the Free Component Library
WEBIDL to pascal code converter program
Copyright (c) 2018 by Michael Van Canneyt michael@freepascal.org
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.
**********************************************************************}
program webidl2pas;
{$mode objfpc}{$H+}
uses
Classes, SysUtils, CustApp, webidlscanner, webidltopas, pascodegen, typinfo;
type
{ TWebIDLToPasApplication }
TWebIDLToPasApplication = class(TCustomApplication)
private
FWebIDLToPas: TWebIDLToPas;
function Checkoption(Var O: TCOnversionOPtions; C: TCOnversionOPtion;
const AShort: Char; const aLong: String): Boolean;
procedure DoConvertLog(Sender: TObject; {%H-}LogType: TCodegenLogType; const Msg: String);
function GetInputFileName: String;
function GetOutputFileName: String;
function GetUnitName: String;
procedure SetinputFileName(AValue: String);
procedure SetOutputFileName(AValue: String);
procedure SetunitName(AValue: String);
protected
procedure DoRun; override;
Protected
Property WebIDLToPas : TWebIDLToPas Read FWebIDLToPas;
public
constructor Create(TheOwner: TComponent); override;
destructor Destroy; override;
procedure WriteHelp(Const Msg : string); virtual;
Property UnitName : String Read GetUnitName Write SetunitName;
property InputFileName : String Read GetInputFileName Write SetinputFileName;
property OutputFileName : String Read GetOutputFileName Write SetOutputFileName;
end;
{ TWebIDLToPasApplication }
function TWebIDLToPasApplication.GetInputFileName: String;
begin
Result:=FWebIDLToPas.InputFileName;
end;
procedure TWebIDLToPasApplication.DoConvertLog(Sender: TObject;
LogType: TCodegenLogType; const Msg: String);
begin
{AllowWriteln}
Writeln(Msg);
{AllowWriteln-}
end;
function TWebIDLToPasApplication.GetOutputFileName: String;
begin
Result:=FWebIDLToPas.OutputFileName
end;
function TWebIDLToPasApplication.GetUnitName: String;
begin
Result:=FWebIDLToPas.OutputUnitName;
end;
procedure TWebIDLToPasApplication.SetinputFileName(AValue: String);
begin
FWebIDLToPas.InputFileName:=aValue;
end;
procedure TWebIDLToPasApplication.SetOutputFileName(AValue: String);
begin
FWebIDLToPas.OutputFileName:=aValue;
end;
procedure TWebIDLToPasApplication.SetunitName(AValue: String);
begin
FWebIDLToPas.OutputUnitName:=aValue;
end;
Function TWebIDLToPasApplication.Checkoption(Var O : TCOnversionOPtions;C : TCOnversionOPtion; Const AShort : Char; Const aLong : String) : Boolean;
begin
Result:=HasOption(aShort,ALong);
if Result then
Include(O,C);
end;
procedure TWebIDLToPasApplication.DoRun;
var
A,ErrorMsg: String;
O : TConversionOptions;
I : Integer;
begin
Terminate;
// quick check parameters
ErrorMsg:=CheckOptions('hi:o:u:m:n:vx:t:ced::pw:', ['help','input:','output:','unitname:','include:','implementation:','verbose','extra:','typealiases:','constexternal','expandunionargs','dicttoclass::','optionsinheader','webidlversion:']);
if (ErrorMsg<>'') or HasOption('h','help') then
begin
WriteHelp(ErrorMsg);
Exit;
end;
O:=[];
Checkoption(O,coExternalConst,'c','constexternal');
Checkoption(O,coExpandUnionTypeArgs,'e','expandunionargs');
CheckOption(O,coaddOptionsToheader,'p','optionsinheader');
if Checkoption(O,coDictionaryAsClass,'d','dicttoclass') then
FWebIDLToPas.DictionaryClassParent:=GetOptionValue('d','dicttoclass');
FWebIDLToPas.Options:=O;
InputFileName:=GetOptionValue('i','input');
OutputFileName:=GetOptionValue('o','output');
UnitName:=GetOptionValue('u','unitname');
FWebIDLToPas.Verbose:=HasOption('v','verbose');
if HasOption('w','webidlversion') then
begin
A:=GetOptionValue('w','webidlversion');
I:=GetEnumValue(TypeInfo(TWebIDLVersion),A);
if (I<>-1) then
FWebIDLToPas.WebIDLVersion:=TWebIDLVersion(I)
else
Raise EConvertError.CreateFmt('Invalid webidl version: %s',[A]);
end;
if hasoption('n','include') then
FWebIDLToPas.IncludeInterfaceCode.LoadFromFile(GetOptionValue('n','include'));
if hasoption('m','implementation') then
FWebIDLToPas.IncludeImplementationCode.LoadFromFile(GetOptionValue('m','implementation'));
FWebIDLToPas.ExtraUnits:=GetOPtionValue('x','extra');
A:=GetOptionValue('t','typealiases');
if (Copy(A,1,1)='@') then
begin
Delete(A,1,1);
FWebIDLToPas.TypeAliases.LoadFromFile(A);
end
else
FWebIDLToPas.TypeAliases.CommaText:=A;
if UnitName='' then
UnitName:=ChangeFileExt(ExtractFileName(InputFileName),'');
if OutputFileName='' then
begin
if (UnitName<>'') then
OutputFileName:=ExtractFilePath(InputFileName)+UnitName+'.pas';
end;
FWebIDLToPas.Execute;
// stop program loop
Terminate;
end;
constructor TWebIDLToPasApplication.Create(TheOwner: TComponent);
begin
inherited Create(TheOwner);
StopOnException:=True;
FWebIDLToPas:=TWebIDLToPas.Create(Self);
FWebIDLToPas.OnLog:=@DoConvertLog;
FWebIDLToPas.ClassPrefix:='TJS';
FWebIDLToPas.ClassSuffix:='';
FWebIDLToPas.KeywordSuffix:='_';
FWebIDLToPas.KeywordPrefix:='';
end;
destructor TWebIDLToPasApplication.Destroy;
begin
FreeAndNil(FWebIDLToPas);
inherited Destroy;
end;
procedure TWebIDLToPasApplication.WriteHelp(const Msg: string);
begin
{AllowWriteln}
if (Msg<>'') then
Writeln(StdErr,'Error : ',Msg);
writeln(StdErr,'Usage: ', ExeName, ' [options]');
Writeln(StdErr,'Where option is one or more of');
Writeln(StdErr,'-h --help this help text');
Writeln(StdErr,'-c --constexternal Write consts as external const (no value)');
Writeln(StdErr,'-e --expandunionargs Add overloads for all Union typed function arguments');
Writeln(StdErr,'-d --dicttoclass[=Parent] Write dictionaries as classes');
Writeln(StdErr,'-i --input=FileName input webidl file');
Writeln(StdErr,'-m --implementation=Filename include file as implementation');
Writeln(StdErr,'-n --include=Filename include file at end of interface');
Writeln(StdErr,'-o --output=FileName output file. Defaults to unit name with .pas extension appended.');
Writeln(StdErr,'-p --optionsinheader add options to header of generated file');
Writeln(StdErr,'-t --typealiases=alias A comma separated list of type aliases in Alias=Name form');
Writeln(StdErr,' use @filename to load the aliases from file.');
Writeln(StdErr,'-u --unitname=Name name for unit. Defaults to input file without extension.');
Writeln(StdErr,'-v --verbose Output some diagnostic information');
Writeln(StdErr,'-w --webidlversion=V Set web IDL version. Allowed values: v1 or v2');
Writeln(StdErr,'-x --extra=units Extra units to put in uses clause (comma separated list)');
ExitCode:=Ord(Msg<>'');
{AllowWriteln-}
end;
var
Application: TWebIDLToPasApplication;
begin
Application:=TWebIDLToPasApplication.Create(nil);
Application.Title:='WebIDL To Pascal converter Application';
Application.Run;
Application.Free;
end.
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