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Do not let the scan-skel token buffer grow unboundedly in the usual case.
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1 /* Input parser for Bison
2
3 Copyright (C) 2000, 2001, 2002 Free Software Foundation, Inc.
4
5 This file is part of Bison, the GNU Compiler Compiler.
6
7 Bison is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2, or (at your option)
10 any later version.
11
12 Bison is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with Bison; see the file COPYING. If not, write to
19 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
20 Boston, MA 02111-1307, USA. */
21
22 #ifndef READER_H_
23 # define READER_H_
24
25 # include "location.h"
26 # include "symlist.h"
27
28 # include "parse-gram.h"
29
30 typedef struct merger_list
31 {
32 struct merger_list* next;
33 uniqstr name;
34 uniqstr type;
35 } merger_list;
36
37 /* From the scanner. */
38 extern FILE *gram_in;
39 extern int gram__flex_debug;
40 extern boundary scanner_cursor;
41 void scanner_initialize (void);
42 void scanner_free (void);
43 void scanner_last_string_free (void);
44
45 # define YY_DECL int gram_lex (YYSTYPE *val, location *loc)
46 YY_DECL;
47
48
49 /* From the parser. */
50 extern int gram_debug;
51 int gram_parse (void);
52 char const *token_name (int);
53
54
55 /* From reader.c. */
56 void grammar_start_symbol_set (symbol *s, location loc);
57 void prologue_augment (const char *prologue, location loc);
58 void epilogue_augment (const char *epilogue, location loc);
59 void grammar_symbol_append (symbol *s, location loc);
60 void grammar_rule_begin (symbol *lhs, location loc);
61 void grammar_rule_end (location loc);
62 void grammar_midrule_action (void);
63 void grammar_current_rule_prec_set (symbol *precsym, location loc);
64 void grammar_current_rule_dprec_set (int dprec, location loc);
65 void grammar_current_rule_merge_set (uniqstr name, location loc);
66
67 void grammar_current_rule_symbol_append (symbol *sym, location loc);
68 void grammar_current_rule_action_append (const char *action, location loc);
69 extern symbol_list *current_rule;
70 void reader (void);
71 void free_merger_functions (void);
72
73 extern merger_list *merge_functions;
74
75 extern int typed;
76
77 #endif /* !READER_H_ */