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(***************************************************************************
* Copyright (C) 2004 by Thomas Nagy *
* tnagy2^8@yahoo.fr *
* *
* 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., *
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
***************************************************************************)
(* File lexer.mll*)
{
open Parser;;
exception IllegalChar
}
rule token = parse
[' ' '\t' '\n'] {token lexbuf} (* ignore whitespaces *)
| ['0'-'9']+ { INT(int_of_string(Lexing.lexeme lexbuf)) }
| ['A'-'Z'] { CAPITAL(Lexing.lexeme lexbuf) }
| ['a'-'z']+ { MINOR(Lexing.lexeme lexbuf) }
| '+' { PLUS }
| '-' { MINUS }
| '(' { LPAREN }
| ')' { RPAREN }
| '[' { LBRACKET }
| ']' { RBRACKET }
| "->" { ARROW }
| _ { raise IllegalChar; }
| eof { EOF }
|
