1/* Parse command line arguments for bison.
2
3 Copyright (C) 1984, 1986, 1989, 1992, 2000-2015, 2018-2019 Free
4 Software 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 GETARGS_H_
22# define GETARGS_H_
23
24# include "location.h"
25
26enum { command_line_prio, grammar_prio, default_prio };
27
28/* flags set by % directives */
29
30/* for -S */
31extern char const *skeleton;
32extern int skeleton_prio;
33
34/* for -I */
35extern char const *include;
36
37extern bool defines_flag; /* for -d */
38extern bool graph_flag; /* for -g */
39extern bool xml_flag; /* for -x */
40extern bool no_lines_flag; /* for -l */
41extern bool token_table_flag; /* for -k */
42extern location yacc_loc; /* for -y */
43extern bool update_flag; /* for -u */
44extern bool color_debug; /* --color=debug. */
45/* GLR_PARSER is true if the input file says to use the GLR
46 (Generalized LR) parser, and to output some additional information
47 used by the GLR algorithm. */
48
49extern bool glr_parser;
50
51/* NONDETERMINISTIC_PARSER is true iff conflicts are accepted. This
52 is used by the GLR parser, and might be used in BackTracking
53 parsers too. */
54
55extern bool nondeterministic_parser;
56
57
58/* --language. */
59struct bison_language
60{
61 char language[sizeof "Java"];
62 char skeleton[sizeof "java-skel.m4"];
63 char src_extension[sizeof ".java"];
64 char header_extension[sizeof ".java"];
65 bool add_tab;
66};
67
68extern int language_prio;
69extern struct bison_language const *language;
70
71/*-----------.
72| --report. |
73`-----------*/
74
75enum report
76 {
77 report_none = 0,
78 report_states = 1 << 0,
79 report_itemsets = 1 << 1,
80 report_lookahead_tokens = 1 << 2,
81 report_solved_conflicts = 1 << 3,
82 report_all = ~0
83 };
84/** What appears in the *.output file. */
85extern int report_flag;
86
87/*----------.
88| --trace. |
89`----------*/
90enum trace
91 {
92 trace_none = 0, /**< No traces. */
93 trace_scan = 1 << 0, /**< Grammar scanner traces. */
94 trace_parse = 1 << 1, /**< Grammar parser traces. */
95 trace_resource = 1 << 2, /**< Memory allocation. */
96 trace_sets = 1 << 3, /**< Grammar sets: firsts, nullable etc. */
97 trace_bitsets = 1 << 4, /**< Use of bitsets. */
98 trace_tools = 1 << 5, /**< m4 invocation. */
99 trace_automaton = 1 << 6, /**< Construction of the automaton. */
100 trace_grammar = 1 << 7, /**< Reading, reducing the grammar. */
101 trace_time = 1 << 8, /**< Time consumption. */
102 trace_skeleton = 1 << 9, /**< Skeleton postprocessing. */
103 trace_m4 = 1 << 10, /**< M4 traces. */
104 trace_muscles = 1 << 11, /**< M4 definitions of the muscles. */
105 trace_ielr = 1 << 12, /**< IELR conversion. */
106 trace_closure = 1 << 13, /**< Input/output of closure(). */
107 trace_locations = 1 << 14, /**< Full display of locations. */
108 trace_all = ~0 /**< All of the above. */
109 };
110/** What debug items bison displays during its run. */
111extern int trace_flag;
112
113/*-------------.
114| --features. |
115`-------------*/
116
117enum feature
118 {
119 feature_none = 0, /**< No additional feature. */
120 feature_caret = 1 << 0, /**< Output errors with carets. */
121 feature_fixit_parsable = 1 << 1, /**< Issue instructions to fix the sources. */
122 feature_syntax_only = 1 << 2, /**< Don't generate output. */
123 feature_all = ~0 /**< All above features. */
124 };
125/** What additional features to use. */
126extern int feature_flag;
127
128
129/** Process the command line arguments.
130 *
131 * \param argc size of \a argv
132 * \param argv list of arguments.
133 */
134void getargs (int argc, char *argv[]);
135
136/* Used by parse-gram.y. */
137void language_argmatch (char const *arg, int prio, location loc);
138void skeleton_arg (const char *arg, int prio, location loc);
139
140/** In the string \c s, replace all characters \c from by \c to. */
141void tr (char *s, char from, char to);
142
143#endif /* !GETARGS_H_ */
144