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1479465f GJ |
1 | /* getopt_long and getopt_long_only entry points for GNU getopt. |
2 | Copyright (C) 1987,88,89,90,91,92,93,94,96,97 Free Software Foundation, Inc. | |
3 | ||
4 | the C library, however. The master source lives in /gd/gnu/lib. | |
5 | ||
6 | NOTE: The canonical source of this file is maintained with the GNU C Library. | |
7 | Bugs can be reported to bug-glibc@prep.ai.mit.edu. | |
8 | ||
9 | This program is free software; you can redistribute it and/or modify it | |
10 | under the terms of the GNU General Public License as published by the | |
11 | Free Software Foundation; either version 2, or (at your option) any | |
12 | later version. | |
13 | ||
14 | This program is distributed in the hope that it will be useful, | |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
18 | ||
19 | You should have received a copy of the GNU General Public License | |
20 | along with this program; if not, write to the Free Software | |
21 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, | |
22 | USA. */ | |
23 | \f | |
24 | #ifdef HAVE_CONFIG_H | |
25 | #include <config.h> | |
26 | #endif | |
27 | ||
28 | #include "getopt.h" | |
29 | ||
30 | #if !defined (__STDC__) || !__STDC__ | |
31 | /* This is a separate conditional since some stdc systems | |
32 | reject `defined (const)'. */ | |
33 | #ifndef const | |
34 | #define const | |
35 | #endif | |
36 | #endif | |
37 | ||
38 | #include <stdio.h> | |
39 | ||
40 | /* Comment out all this code if we are using the GNU C Library, and are not | |
41 | actually compiling the library itself. This code is part of the GNU C | |
42 | Library, but also included in many other GNU distributions. Compiling | |
43 | and linking in this code is a waste when using the GNU C library | |
44 | (especially if it is a shared library). Rather than having every GNU | |
45 | program understand `configure --with-gnu-libc' and omit the object files, | |
46 | it is simpler to just do this in the source for each such file. */ | |
47 | ||
48 | #define GETOPT_INTERFACE_VERSION 2 | |
49 | #if !defined (_LIBC) && defined (__GLIBC__) && __GLIBC__ >= 2 | |
50 | #include <gnu-versions.h> | |
51 | #if _GNU_GETOPT_INTERFACE_VERSION == GETOPT_INTERFACE_VERSION | |
52 | #define ELIDE_CODE | |
53 | #endif | |
54 | #endif | |
55 | ||
56 | #ifndef ELIDE_CODE | |
57 | ||
58 | ||
59 | /* This needs to come after some library #include | |
60 | to get __GNU_LIBRARY__ defined. */ | |
61 | #ifdef __GNU_LIBRARY__ | |
62 | #include <stdlib.h> | |
63 | #endif | |
64 | ||
65 | #ifndef NULL | |
66 | #define NULL 0 | |
67 | #endif | |
68 | ||
69 | int | |
70 | getopt_long (argc, argv, options, long_options, opt_index) | |
71 | int argc; | |
72 | char *const *argv; | |
73 | const char *options; | |
74 | const struct option *long_options; | |
75 | int *opt_index; | |
76 | { | |
77 | return _getopt_internal (argc, argv, options, long_options, opt_index, 0); | |
78 | } | |
79 | ||
80 | /* Like getopt_long, but '-' as well as '--' can indicate a long option. | |
81 | If an option that starts with '-' (not '--') doesn't match a long option, | |
82 | but does match a short option, it is parsed as a short option | |
83 | instead. */ | |
84 | ||
85 | int | |
86 | getopt_long_only (argc, argv, options, long_options, opt_index) | |
87 | int argc; | |
88 | char *const *argv; | |
89 | const char *options; | |
90 | const struct option *long_options; | |
91 | int *opt_index; | |
92 | { | |
93 | return _getopt_internal (argc, argv, options, long_options, opt_index, 1); | |
94 | } | |
95 | ||
96 | ||
97 | #endif /* Not ELIDE_CODE. */ | |
98 | \f | |
99 | #ifdef TEST | |
100 | ||
101 | #include <stdio.h> | |
102 | ||
103 | int | |
104 | main (argc, argv) | |
105 | int argc; | |
106 | char **argv; | |
107 | { | |
108 | int c; | |
109 | int digit_optind = 0; | |
110 | ||
111 | while (1) | |
112 | { | |
113 | int this_option_optind = optind ? optind : 1; | |
114 | int option_index = 0; | |
115 | static struct option long_options[] = | |
116 | { | |
117 | {"add", 1, 0, 0}, | |
118 | {"append", 0, 0, 0}, | |
119 | {"delete", 1, 0, 0}, | |
120 | {"verbose", 0, 0, 0}, | |
121 | {"create", 0, 0, 0}, | |
122 | {"file", 1, 0, 0}, | |
123 | {0, 0, 0, 0} | |
124 | }; | |
125 | ||
126 | c = getopt_long (argc, argv, "abc:d:0123456789", | |
127 | long_options, &option_index); | |
128 | if (c == -1) | |
129 | break; | |
130 | ||
131 | switch (c) | |
132 | { | |
133 | case 0: | |
134 | printf ("option %s", long_options[option_index].name); | |
135 | if (optarg) | |
136 | printf (" with arg %s", optarg); | |
137 | printf ("\n"); | |
138 | break; | |
139 | ||
140 | case '0': | |
141 | case '1': | |
142 | case '2': | |
143 | case '3': | |
144 | case '4': | |
145 | case '5': | |
146 | case '6': | |
147 | case '7': | |
148 | case '8': | |
149 | case '9': | |
150 | if (digit_optind != 0 && digit_optind != this_option_optind) | |
151 | printf ("digits occur in two different argv-elements.\n"); | |
152 | digit_optind = this_option_optind; | |
153 | printf ("option %c\n", c); | |
154 | break; | |
155 | ||
156 | case 'a': | |
157 | printf ("option a\n"); | |
158 | break; | |
159 | ||
160 | case 'b': | |
161 | printf ("option b\n"); | |
162 | break; | |
163 | ||
164 | case 'c': | |
165 | printf ("option c with value `%s'\n", optarg); | |
166 | break; | |
167 | ||
168 | case 'd': | |
169 | printf ("option d with value `%s'\n", optarg); | |
170 | break; | |
171 | ||
172 | case '?': | |
173 | break; | |
174 | ||
175 | default: | |
176 | printf ("?? getopt returned character code 0%o ??\n", c); | |
177 | } | |
178 | } | |
179 | ||
180 | if (optind < argc) | |
181 | { | |
182 | printf ("non-option ARGV-elements: "); | |
183 | while (optind < argc) | |
184 | printf ("%s ", argv[optind++]); | |
185 | printf ("\n"); | |
186 | } | |
187 | ||
188 | exit (0); | |
189 | } | |
190 | ||
191 | #endif /* TEST */ |