/* Token type definitions for bison's input reader,
   Copyright 1984, 1989, 1992, 2000 Free Software Foundation, Inc.

   This file is part of Bison, the GNU Compiler Compiler.

   Bison 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.

   Bison 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 Bison; see the file COPYING.  If not, write to
   the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
   Boston, MA 02111-1307, USA.  */

#ifndef LEX_H_
# define LEX_H_

/* Token-type codes. */
typedef enum token_e
  {
    tok_eof,
    tok_identifier,
    tok_comma,
    tok_colon,
    tok_semicolon,
    tok_bar,
    tok_left_curly,
    tok_two_percents,
    tok_percent_left_curly,
    tok_token,
    tok_nterm,
    tok_guard,
    tok_type,
    tok_union,
    tok_start,
    tok_left,
    tok_right,
    tok_nonassoc,
    tok_prec,
    tok_typename,
    tok_number,
    tok_expect,
    tok_thong,
    tok_noop,
    tok_setopt,
    tok_illegal
  } token_t;

extern char *token_buffer;
extern bucket *symval;
extern int numval;

void init_lex PARAMS ((void));
int skip_white_space PARAMS ((void));
void unlex PARAMS ((int));
void read_type_name PARAMS ((FILE *fin));

/* Return one of the token-type codes.  When an identifier is seen,
   the code IDENTIFIER is returned and the name is looked up in the
   symbol table using symtab.c; symval is set to a pointer to the
   entry found.  */

token_t lex PARAMS ((void));

int parse_percent_token PARAMS ((void));

#endif /* !LEX_H_ */