1/* Parse command line arguments for bison.
2
3   Copyright (C) 1984, 1986, 1989, 1992, 2000-2012 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 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 debug;			/* for -t */
38extern bool defines_flag;		/* for -d */
39extern bool graph_flag;			/* for -g */
40extern bool xml_flag;			/* for -x */
41extern bool locations_flag;
42extern bool no_lines_flag;		/* for -l */
43extern bool token_table_flag;		/* for -k */
44extern bool yacc_flag;			/* for -y */
45
46extern bool error_verbose;
47
48
49/* GLR_PARSER is true if the input file says to use the GLR
50   (Generalized LR) parser, and to output some additional information
51   used by the GLR algorithm.  */
52
53extern bool glr_parser;
54
55/* NONDETERMINISTIC_PARSER is true iff conflicts are accepted.  This
56   is used by the GLR parser, and might be used in BackTracking
57   parsers too.  */
58
59extern bool nondeterministic_parser;
60
61
62/* --language.  */
63struct bison_language
64{
65  char language[sizeof "Java"];
66  char skeleton[sizeof "java-skel.m4"];
67  char src_extension[sizeof ".java"];
68  char header_extension[sizeof ".java"];
69  bool add_tab;
70};
71
72extern int language_prio;
73extern struct bison_language const *language;
74
75/*-----------.
76| --report.  |
77`-----------*/
78
79enum report
80  {
81    report_none             = 0,
82    report_states           = 1 << 0,
83    report_itemsets         = 1 << 1,
84    report_lookahead_tokens = 1 << 2,
85    report_solved_conflicts = 1 << 3,
86    report_all              = ~0
87  };
88/** What appears in the *.output file.  */
89extern int report_flag;
90
91/*----------.
92| --trace.  |
93`----------*/
94enum trace
95  {
96    trace_none      = 0,       /**< No traces. */
97    trace_scan      = 1 << 0,  /**< Grammar scanner traces. */
98    trace_parse     = 1 << 1,  /**< Grammar parser traces. */
99    trace_resource  = 1 << 2,  /**< Memory allocation. */
100    trace_sets      = 1 << 3,  /**< Grammar sets: firsts, nullable etc. */
101    trace_bitsets   = 1 << 4,  /**< Use of bitsets. */
102    trace_tools     = 1 << 5,  /**< m4 invocation. */
103    trace_automaton = 1 << 6,  /**< Construction of the automaton. */
104    trace_grammar   = 1 << 7,  /**< Reading, reducing the grammar. */
105    trace_time      = 1 << 8,  /**< Time consumption. */
106    trace_skeleton  = 1 << 9,  /**< Skeleton postprocessing. */
107    trace_m4        = 1 << 10, /**< M4 traces. */
108    trace_muscles   = 1 << 11, /**< M4 definitions of the muscles. */
109    trace_ielr      = 1 << 12, /**< IELR conversion. */
110    trace_all       = ~0       /**< All of the above.  */
111  };
112/** What debug items bison displays during its run.  */
113extern int trace_flag;
114
115/*-------------.
116| --warnings.  |
117`-------------*/
118
119enum warnings
120  {
121    warnings_none             = 0,      /**< Issue no warnings.  */
122    warnings_error            = 1 << 0, /**< Warnings are treated as errors.  */
123    warnings_midrule_values   = 1 << 1, /**< Unset or unused midrule values.  */
124    warnings_yacc             = 1 << 2, /**< POSIXME.  */
125    warnings_conflicts_sr     = 1 << 3, /**< S/R conflicts.  */
126    warnings_conflicts_rr     = 1 << 4, /**< R/R conflicts.  */
127    warnings_other            = 1 << 5, /**< All other warnings.  */
128    warnings_all              = ~warnings_error /**< All above warnings.  */
129  };
130/** What warnings are issued.  */
131extern int warnings_flag;
132
133/*-------------.
134| --features.  |
135`-------------*/
136
137enum feature
138  {
139    feature_none  = 0,         /**< No additional feature.  */
140    feature_caret = 1 << 0,    /**< Enhance the output of errors with carets.  */
141    feature_all   = ~0         /**< All above features.  */
142  };
143/** What additional features to use.  */
144extern int feature_flag;
145
146/** Process the command line arguments.
147 *
148 *  \param argc   size of \a argv
149 *  \param argv   list of arguments.
150 */
151void getargs (int argc, char *argv[]);
152
153/* Used by parse-gram.y.  */
154void language_argmatch (char const *arg, int prio, location loc);
155void skeleton_arg (const char *arg, int prio, location loc);
156
157/** In the string \c s, replace all characters \c from by \c to.  */
158void tr (char *s, char from, char to);
159
160#endif /* !GETARGS_H_ */
161