/* Copyright (C) 2000, HELM Team.
 * 
 * This file is part of HELM, an Hypertextual, Electronic
 * Library of Mathematics, developed at the Computer Science
 * Department, University of Bologna, Italy.
 * 
 * HELM 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.
 * 
 * HELM 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 HELM; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
 * MA  02111-1307, USA.
 * 
 * For details, see the HELM World-Wide-Web page,
 * http://cs.unibo.it/helm/.
 */

/*  AUTOR: Ferruccio Guidi <fguidi@cs.unibo.it>
 */ 

%{
   module T = HxpTypes
%}
   %token DONE
   %token <string> NAME VAL
   %token OPEN CLOSE EQ SL /* < > = / */
   %start xml
   %type <HxpTypes.xml_object> xml

   %token <float> DATA
   %token CLN
   %start time
   %type <float * float> time
%%
   xml :
        OPEN NAME          { T.XML_Open $2 }
      | NAME EQ VAL        { T.XML_Attribute ($1, $3) }
      | CLOSE              { T.XML_End }
      | OPEN SL NAME CLOSE { T.XML_Close $3 }
      | SL CLOSE           { T.XML_Close "" }
      | NAME NAME VAL      { T.XML_Attribute ($1 ^ " " ^ $2, $3) }
      | DONE               { T.XML_Done }
   ;
   time :
        EQ DATA CLN DATA      { ($2, $4)   }
      | DATA EQ DATA CLN DATA { ($3, $5)   }
      | DONE                  { (-1., -1.) }
   ;