--  Ortho front-end specifications.
--  Copyright (C) 2002, 2003, 2004, 2005 Tristan Gingold
--
--  GHDL is free software; you can redistribute it and/or modify it under
--  the terms of the GNU General Public License as published by the Free
--  Software Foundation; either version 2, or (at your option) any later
--  version.
--
--  GHDL 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.  See the GNU General Public License
--  for more details.
--
--  You should have received a copy of the GNU General Public License
--  along with GCC; see the file COPYING.  If not, write to the Free
--  Software Foundation, 59 Temple Place - Suite 330, Boston, MA
--  02111-1307, USA.

package Ortho_Front is
   type String_Acc is access String;

   --  Called before decode_option.
   --  This procedure can only do internal initializations.  It cannot call
   --  ortho subprograms.
   procedure Init;

   --  An ortho back-end decodes the command line.  Unknown options may
   --  be decoded by the user, with this function.
   --  When an ortho back-end encounter an unknown option, it sets OPT with
   --  this option and ARG with the next one, if any.
   --
   --  DECODE_OPTION must return the number of argument used, ie:
   --   0 if OPT is unknown.
   --   1 if OPT is known but ARG is unused.
   --   2 if OPT is known and ARG used.
   function Decode_Option (Opt : String_Acc; Arg : String_Acc) return Natural;

   --  Start to parse file FILENAME.
   --  Return False in case of error.
   function Parse (Filename : String_Acc) return Boolean;
end Ortho_Front;