1/* Input parser for Bison
2
3   Copyright (C) 2000-2003, 2005-2007, 2009-2012 Free Software
4   Foundation, Inc.
5
6   This file is part of Bison, the GNU Compiler Compiler.
7
8   This program is free software: you can redistribute it and/or modify
9   it under the terms of the GNU General Public License as published by
10   the Free Software Foundation, either version 3 of the License, or
11   (at your option) any later version.
12
13   This program is distributed in the hope that it will be useful,
14   but WITHOUT ANY WARRANTY; without even the implied warranty of
15   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16   GNU General Public License for more details.
17
18   You should have received a copy of the GNU General Public License
19   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
20
21#ifndef READER_H_
22# define READER_H_
23
24# include "location.h"
25# include "symlist.h"
26# include "named-ref.h"
27
28# include "parse-gram.h"
29
30typedef struct merger_list
31{
32  struct merger_list* next;
33  uniqstr name;
34  uniqstr type;
35  location type_declaration_location;
36} merger_list;
37
38/* From the parser.  */
39extern int gram_debug;
40int gram_parse (void);
41char const *token_name (int type);
42
43
44/* From reader.c. */
45void grammar_start_symbol_set (symbol *sym, location loc);
46void grammar_current_rule_begin (symbol *lhs, location loc,
47				 named_ref *lhs_named_ref);
48void grammar_current_rule_end (location loc);
49void grammar_midrule_action (void);
50void grammar_current_rule_prec_set (symbol *precsym, location loc);
51void grammar_current_rule_dprec_set (int dprec, location loc);
52void grammar_current_rule_merge_set (uniqstr name, location loc);
53void grammar_current_rule_symbol_append (symbol *sym, location loc,
54					 named_ref *nref);
55void grammar_current_rule_action_append (const char *action, location loc,
56					 named_ref *nref);
57void reader (void);
58void free_merger_functions (void);
59
60extern merger_list *merge_functions;
61
62/* Was %union seen?  */
63extern bool union_seen;
64
65/* Was a tag seen?  */
66extern bool tag_seen;
67
68/* Should rules have a default precedence?  */
69extern bool default_prec;
70
71#endif /* !READER_H_ */
72