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1 /* Concentrate all options use in bison,
2 Copyright 2001 Free Software Foundation, Inc.
3
4 This file is part of Bison, the GNU Compiler Compiler.
5
6 Bison is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2, or (at your option)
9 any later version.
10
11 Bison is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with Bison; see the file COPYING. If not, write to
18 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
19 Boston, MA 02111-1307, USA. */
20
21 #include "system.h"
22 #include "getopt.h"
23 #include "files.h"
24 #include "getargs.h"
25 #include "symtab.h"
26 #include "lex.h"
27 #include "output.h"
28 #include "options.h"
29
30 /* Shorts options. */
31 const char *shortopts = "yvegdhrltknVo:b:p:S:";
32
33 /* A CLI option only.
34 Arguments is the policy: `no', `optional', `required'.
35 OptionChar is the value given to the Var if the latter is specified. */
36 #undef OPTN
37 #define OPTN(OptionString, Arguments, Var, Token, OptionChar) \
38 { opt_cmd_line, \
39 (OptionString), (Arguments##_argument), (Var), (Token), (OptionChar) },
40
41 /* A directive only. */
42 #undef DRTV
43 #define DRTV(DirectiveString, Arguments, Var, Token) \
44 { opt_percent, \
45 (DirectiveString), (Arguments##_argument), (Var), (Token), (0) },
46
47 /* An option activated both by a directive and an CLI option. */
48 #undef BOTH
49 #define BOTH(String, Arguments, Var, Token, OptionChar) \
50 { opt_both, \
51 (String), (Arguments##_argument), (Var), (Token), (OptionChar) },
52
53
54 const struct option_table_struct option_table[] =
55 {
56 /*
57 * Command line.
58 */
59
60 /* Operation modes. */
61 OPTN ("help", no, 0, 0, 'h')
62 OPTN ("version", no, 0, 0, 'V')
63
64 /* Parser. */
65 OPTN ("name-prefix", required, 0, 0, 'p')
66 OPTN ("include", required, 0, 0, 'I')
67
68 /* Output. */
69 OPTN ("file-prefix", required, 0, 0, 'b')
70 OPTN ("output", required, 0, 0, 'o')
71 OPTN ("output-file", required, 0, 0, 'o')
72 OPTN ("graph", optional, 0, 0, 'g')
73
74 /* Hidden. */
75 OPTN ("trace", no, &trace_flag, 0, 1)
76
77 /*
78 * Percent declarations.
79 */
80
81 DRTV ("token", no, NULL, tok_token)
82 DRTV ("term", no, NULL, tok_token)
83 DRTV ("nterm", no, NULL, tok_nterm)
84 DRTV ("type", no, NULL, tok_type)
85 DRTV ("guard", no, NULL, tok_guard)
86 DRTV ("union", no, NULL, tok_union)
87 DRTV ("expect", no, NULL, tok_expect)
88 DRTV ("thong", no, NULL, tok_thong)
89 DRTV ("start", no, NULL, tok_start)
90 DRTV ("left", no, NULL, tok_left)
91 DRTV ("right", no, NULL, tok_right)
92 DRTV ("nonassoc", no, NULL, tok_nonassoc)
93 DRTV ("binary", no, NULL, tok_nonassoc)
94 DRTV ("prec", no, NULL, tok_prec)
95 DRTV ("error-verbose",no, &error_verbose, tok_intopt)
96
97 /* FIXME: semantic parsers will output an `include' of an
98 output file: be sure that the naem included is indeed the name of
99 the output file. */ /* FIXME Should we activate this options ?
100 */
101 BOTH ("output", required, &spec_outfile, tok_stropt, 'o')
102 BOTH ("file-prefix", required, &spec_file_prefix, tok_stropt, 'b')
103 BOTH ("name-prefix", required, &spec_name_prefix, tok_stropt, 'p')
104
105 DRTV ("define", no, NULL, tok_define)
106 DRTV ("semantic-parser",no, &semantic_parser, tok_intopt)
107 DRTV ("pure-parser", no, &pure_parser, tok_intopt)
108
109 /*
110 * Percent and command line declarations.
111 */
112
113 /* Output. */
114 BOTH ("defines", optional, &defines_flag, tok_intopt, 'd')
115 BOTH ("verbose", no, &verbose_flag, tok_intopt, 'v')
116
117 /* Operation modes. */
118 BOTH ("fixed-output-files", no, &yacc_flag, tok_intopt, 'y')
119 BOTH ("yacc", no, &yacc_flag, tok_intopt, 'y')
120
121 /* Parser. */
122 BOTH ("debug", no, &debug_flag, tok_intopt, 't')
123 BOTH ("locations", no, &locations_flag, tok_intopt, 1)
124 BOTH ("no-lines", no, &no_lines_flag, tok_intopt, 'l')
125 BOTH ("no-parser", no, &no_parser_flag, tok_intopt, 'n')
126 BOTH ("raw", no, 0, tok_obsolete, 'r')
127 BOTH ("skeleton", required, 0, tok_skel, 'S')
128 BOTH ("token-table", no, &token_table_flag, tok_intopt, 'k')
129
130 {0, 0, 0, 0, 0, 0}
131 };
132
133
134 /*--------------------------------------------------------.
135 | Create the longoptions structure from the option_table, |
136 | for the getopt file. |
137 `--------------------------------------------------------*/
138
139 struct option *
140 long_option_table_new ()
141 {
142 struct option *res = NULL;
143 int i = 0;
144 int j = 0;
145 int number_options;
146
147 for (number_options = 0; option_table[i].name; i++)
148 if (option_table[i].access == opt_cmd_line
149 || option_table[i].access == opt_both)
150 ++number_options;
151
152 res = XMALLOC (struct option, number_options + 1);
153 for (i = 0; option_table[i].name; i++)
154 if (option_table[i].access == opt_cmd_line
155 || option_table[i].access == opt_both)
156 {
157 /* Copy the struct information in the longoptions. */
158 res[j].name = option_table[i].name;
159 res[j].has_arg = option_table[i].has_arg;
160 /* When an options is declared having 'optional_argument' and
161 a flag is specified to be set, the option is skipped on
162 command line. So we never use a flag when a command line
163 option is declared 'optional_argument. */
164 if (res[j].has_arg == optional_argument)
165 res[j].flag = NULL;
166 else
167 res[j].flag = option_table[i].set_flag;
168 res[j++].val = option_table[i].val;
169 }
170 res[number_options].name = NULL;
171 res[number_options].has_arg = 0;
172 res[number_options].flag = NULL;
173 res[number_options].val = 0;
174
175 return res;
176 }