1 /* Parse command line arguments for bison.
2
3 Copyright (C) 1984, 1986, 1989, 1992, 2000-2015, 2018-2021 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 <https://www.gnu.org/licenses/>. */
20
21 #ifndef GETARGS_H_
22 # define GETARGS_H_
23
24 # include "location.h"
25
26 enum { command_line_prio, grammar_prio, default_prio };
27
28 /* flags set by % directives */
29
30 /* for -S */
31 extern char const *skeleton;
32 extern int skeleton_prio;
33
34 /* for -I */
35 extern char const *include;
36
37 extern bool header_flag; /* for -d/-H */
38 extern bool graph_flag; /* for -g */
39 extern bool html_flag; /* for --html */
40 extern bool xml_flag; /* for -x */
41 extern bool no_lines_flag; /* for -l */
42 extern bool token_table_flag; /* for -k */
43 extern location yacc_loc; /* for -y */
44 extern bool update_flag; /* for -u */
45 extern bool color_debug; /* --color=debug. */
46 /* GLR_PARSER is true if the input file says to use the GLR
47 (Generalized LR) parser, and to output some additional information
48 used by the GLR algorithm. */
49
50 extern bool glr_parser;
51
52 /* NONDETERMINISTIC_PARSER is true iff conflicts are accepted. This
53 is used by the GLR parser, and might be used in BackTracking
54 parsers too. */
55
56 extern bool nondeterministic_parser;
57
58
59 /* --language. */
60 struct bison_language
61 {
62 char language[sizeof "Java"];
63 char skeleton[sizeof "java-skel.m4"];
64 char src_extension[sizeof ".java"];
65 char header_extension[sizeof ".java"];
66 bool add_tab;
67 };
68
69 extern int language_prio;
70 extern struct bison_language const *language;
71
72 /*-----------.
73 | --report. |
74 `-----------*/
75
76 enum report
77 {
78 report_none = 0,
79 report_states = 1 << 0,
80 report_itemsets = 1 << 1,
81 report_lookaheads = 1 << 2,
82 report_solved_conflicts = 1 << 3,
83 report_cex = 1 << 4,
84 report_all = ~0
85 };
86 /** What appears in the *.output file. */
87 extern int report_flag;
88
89 /*----------.
90 | --trace. |
91 `----------*/
92 enum trace
93 {
94 trace_none = 0, /**< No traces. */
95 trace_scan = 1 << 0, /**< Grammar scanner traces. */
96 trace_parse = 1 << 1, /**< Grammar parser traces. */
97 trace_resource = 1 << 2, /**< Memory allocation. */
98 trace_sets = 1 << 3, /**< Grammar sets: firsts, nullable etc. */
99 trace_bitsets = 1 << 4, /**< Use of bitsets. */
100 trace_tools = 1 << 5, /**< m4 invocation. */
101 trace_automaton = 1 << 6, /**< Construction of the automaton. */
102 trace_grammar = 1 << 7, /**< Reading, reducing the grammar. */
103 trace_time = 1 << 8, /**< Time consumption. */
104 trace_skeleton = 1 << 9, /**< Skeleton postprocessing. */
105 trace_m4_early = 1 << 10, /**< M4 early traces. */
106 trace_m4 = 1 << 11, /**< M4 traces. */
107 trace_muscles = 1 << 12, /**< M4 definitions of the muscles. */
108 trace_ielr = 1 << 13, /**< IELR conversion. */
109 trace_closure = 1 << 14, /**< Input/output of closure(). */
110 trace_locations = 1 << 15, /**< Full display of locations. */
111 trace_cex = 1 << 16, /**< Counterexample generation */
112 trace_all = ~0 /**< All of the above. */
113 };
114 /** What debug items bison displays during its run. */
115 extern int trace_flag;
116
117 /*-------------.
118 | --features. |
119 `-------------*/
120
121 enum feature
122 {
123 feature_none = 0, /**< No additional feature. */
124 feature_caret = 1 << 0, /**< Output errors with carets. */
125 feature_fixit = 1 << 1, /**< Issue instructions to fix the sources. */
126 feature_syntax_only = 1 << 2, /**< Don't generate output. */
127 feature_all = ~0 /**< All above features. */
128 };
129 /** What additional features to use. */
130 extern int feature_flag;
131
132
133 /** Process the command line arguments.
134 *
135 * \param argc size of \a argv
136 * \param argv list of arguments.
137 */
138 void getargs (int argc, char *argv[]);
139
140 /* Used by parse-gram.y. */
141 void language_argmatch (char const *arg, int prio, location loc);
142 void skeleton_arg (const char *arg, int prio, location loc);
143 void set_yacc (location loc);
144
145 /** In the string \c s, replace all characters \c from by \c to. */
146 void tr (char *s, char from, char to);
147
148 #endif /* !GETARGS_H_ */