------------------------------------------------------------------------------
------------------------------------------------------------------------------
-- Cheddar is a GNU GPL real-time scheduling analysis tool.
-- This program provides services to automatically check schedulability and
-- other performance criteria of real-time architecture models.
--
-- Copyright (C) 2002-2020, Frank Singhoff, Alain Plantec, Jerome Legrand, 
--                          Hai Nam Tran, Stephane Rubini
--
-- The Cheddar project was started in 2002 by 
-- Frank Singhoff, Lab-STICC UMR CNRS 6285, Universite de Bretagne Occidentale
-- 
-- Cheddar has been published in the "Agence de Protection des Programmes/France" in 2008. 
-- Since 2008, Ellidiss technologies also contributes to the development of 
-- Cheddar and provides industrial support.
--
-- The full list of contributors and sponsors can be found in AUTHORS.txt and SPONSORS.txt
--
-- This program 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 of the License, or
-- (at your option) any later version.
--
-- 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.  See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with this program; if not, write to the Free Software
-- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
--
--
-- Contact : cheddar@listes.univ-brest.fr
--           
------------------------------------------------------------------------------
-- Last update : 
--    $Rev$
--    $Date$
--    $Author: singhoff $
------------------------------------------------------------------------------
------------------------------------------------------------------------------

with scheduler_dfa;use scheduler_dfa;
with Text_IO;               use Text_IO;
with Ada.Strings.Unbounded; use Ada.Strings.Unbounded;

package scheduler_io is
   user_input_file  : File_Type;
   user_output_file : File_Type;
   NULL_IN_INPUT : exception;
   AFLEX_INTERNAL_ERROR : exception;
   UNEXPECTED_LAST_MATCH : exception;
   PUSHBACK_OVERFLOW : exception;
   AFLEX_SCANNER_JAMMED : exception;
   type eob_action_type is (
     EOB_ACT_RESTART_SCAN,
     EOB_ACT_END_OF_FILE,
     EOB_ACT_LAST_MATCH);
   YY_END_OF_BUFFER_CHAR : constant Character := ASCII.NUL;
   yy_n_chars            : Integer;       -- number of characters read into
                                          --yy_ch_buf

   -- true when we've seen an EOF for the current input file
   yy_eof_has_been_seen : Boolean;

   procedure YY_INPUT
     (buf      : out unbounded_character_array;
      result   : out Integer;
      max_size : in Integer);
   function yy_get_next_buffer return eob_action_type;
   procedure yyunput (c : Character; yy_bp : in out Integer);
   procedure unput (c : Character);
   function input return Character;
   procedure output (c : Character);
   function yywrap return Boolean;
   procedure Open_Input (fname : in Unbounded_String);
   procedure Close_Input;
   procedure Create_Output (fname : in String := "");
   procedure Close_Output;

end scheduler_io;