/* ########################################################################

			      BR_Lexer.h

   ########################################################################

   Copyright (c) : Dominique Leveque

   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, 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., 675 Mass Ave, Cambridge, MA 02139, USA.

   ######################################################################## */


#ifndef BR_LEXER_H
#define BR_LEXER_H


   /*-----------------------------------------------------------------------*/

struct BR_TokenRec
{
  BR_Int              _code;
  struct BR_TokenRec *_prefix;
  BR_Str             *_val;
  BR_ULong            _val_len;
  BR_ULong            _bits;
  BR_ULong            _line_num;
  struct BR_TokenRec *_next;
  struct BR_TokenRec *_last;
};

typedef struct BR_TokenRec  BR_TokenRec;
typedef BR_TokenRec        *BR_TokenPt;


   /*-----------------------------------------------------------------------*/

#define YYSTYPE     BR_TokenPt

#define yylval      BR_yylval
extern YYSTYPE      BR_yylval;

#define yylex       BR_yylex
extern BR_Int       BR_yylex();


   /*-----------------------------------------------------------------------*/

extern
FCT (void, BR_lex_init, (FILE* main_file, BR_Str* main_name) );


extern
FCT (void, BR_lex_empty_frame, () );

extern
FCT (BR_TokenPt, BR_lex_stack_frame, (BR_ULong init_bits) );

extern
FCT (BR_TokenPt, BR_lex_unstack_frame, () );


extern 
FCT (BR_TokenPt, BR_lex_alloc_token, (BR_Int code, BR_Str* val, BR_Int val_len) );

extern
FCT (BR_Int, BR_lex_get_line_num, ());


   /*-----------------------------------------------------------------------*/

extern
FCT (void, BR_lex_ignore_proc_tail, () );

extern
FCT (void, BR_lex_jump_bracket, () );

extern
FCT (void, BR_lex_jump_colon, () );


   /*-----------------------------------------------------------------------*/

extern
FCT (void, BR_lex_save_state, () );

extern
FCT (void, BR_lex_synchronize, () );


#endif  /* BR_LEXER_H */