(* 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://www.cs.unibo.it/helm/.
 *)

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

{ 
   open HxpParser
}

let SPC   = [' ' '\t' '\n' '\r' '?' '!']+
let ALPHA = ['A'-'Z' 'a'-'z']+
let STR   = '"'[^'"']*'"' 
let NUM   = ['0'-'9' '.']+
let BEF   = [^ '=' '0'-'9' '.' ':' '*']*

rule xml_token = parse
   | SPC       { xml_token lexbuf }
   | '<'       { OPEN }
   | '>'       { CLOSE }
   | '='       { EQ }
   | '/'       { SL }
   | ALPHA     { NAME (Lexing.lexeme lexbuf) }
   | STR       { VAL (Lexing.lexeme lexbuf) }
   | eof       { DONE }
   
and time_token = parse
   | BEF       { time_token lexbuf }
   | NUM       { DATA (float_of_string (Lexing.lexeme lexbuf)) }
   | '='       { EQ }
   | ':'       { CLN }
   | _         { DONE }
   | eof       { DONE }