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1 | /* getopt_long and getopt_long_only entry points for GNU getopt. |
2 | Copyright (C) 1987,88,89,90,91,92,93,94,96,97,98 | |
3 | Free Software Foundation, Inc. | |
4 | This file is part of the GNU C Library. | |
5 | ||
6 | The GNU C Library is free software; you can redistribute it and/or | |
7 | modify it under the terms of the GNU Library General Public License as | |
8 | published by the Free Software Foundation; either version 3 of the | |
9 | License, or (at your option) any later version. | |
10 | ||
11 | The GNU C Library 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 GNU | |
14 | Library General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU Library General Public | |
17 | License along with the GNU C Library; see the file COPYING.LIB. If not, | |
18 | write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, | |
19 | Boston, MA 02110-1301, USA. */ | |
20 | \f | |
21 | ||
22 | ||
23 | #include "gg-getopt.h" | |
24 | ||
25 | #if !defined __STDC__ || !__STDC__ | |
26 | /* This is a separate conditional since some stdc systems | |
27 | reject `defined (const)'. */ | |
28 | #ifndef const | |
29 | #define const | |
30 | #endif | |
31 | #endif | |
32 | ||
33 | #include <stdio.h> | |
34 | ||
35 | /* Comment out all this code if we are using the GNU C Library, and are not | |
36 | actually compiling the library itself. This code is part of the GNU C | |
37 | Library, but also included in many other GNU distributions. Compiling | |
38 | and linking in this code is a waste when using the GNU C library | |
39 | (especially if it is a shared library). Rather than having every GNU | |
40 | program understand `configure --with-gnu-libc' and omit the object files, | |
41 | it is simpler to just do this in the source for each such file. */ | |
42 | ||
43 | #define GETOPT_INTERFACE_VERSION 2 | |
44 | #if !defined _LIBC && defined __GLIBC__ && __GLIBC__ >= 2 | |
45 | #include <gnu-versions.h> | |
46 | #if _GNU_GETOPT_INTERFACE_VERSION == GETOPT_INTERFACE_VERSION | |
47 | /*#define ELIDE_CODE*/ | |
48 | #endif | |
49 | #endif | |
50 | ||
51 | #ifndef ELIDE_CODE | |
52 | ||
53 | ||
54 | /* This needs to come after some library #include | |
55 | to get __GNU_LIBRARY__ defined. */ | |
56 | #ifdef __GNU_LIBRARY__ | |
57 | #include <stdlib.h> | |
58 | #endif | |
59 | ||
60 | #ifndef NULL | |
61 | #define NULL 0 | |
62 | #endif | |
63 | ||
64 | int | |
65 | gg_getopt_long (argc, argv, options, long_options, opt_index) | |
66 | int argc; | |
67 | char *const *argv; | |
68 | const char *options; | |
69 | const struct gg_option *long_options; | |
70 | int *opt_index; | |
71 | { | |
72 | return _getopt_internal (argc, argv, options, long_options, opt_index, 0); | |
73 | } | |
74 | ||
75 | /* Like getopt_long, but '-' as well as '--' can indicate a long option. | |
76 | If an option that starts with '-' (not '--') doesn't match a long option, | |
77 | but does match a short option, it is parsed as a short option | |
78 | instead. */ | |
79 | ||
80 | int | |
81 | getopt_long_only (argc, argv, options, long_options, opt_index) | |
82 | int argc; | |
83 | char *const *argv; | |
84 | const char *options; | |
85 | const struct gg_option *long_options; | |
86 | int *opt_index; | |
87 | { | |
88 | return _getopt_internal (argc, argv, options, long_options, opt_index, 1); | |
89 | } | |
90 | ||
91 | ||
92 | #endif /* Not ELIDE_CODE. */ | |
93 | \f | |
94 | #ifdef TEST | |
95 | ||
96 | #include <stdio.h> | |
97 | ||
98 | int | |
99 | main (argc, argv) | |
100 | int argc; | |
101 | char **argv; | |
102 | { | |
103 | int c; | |
104 | int digit_optind = 0; | |
105 | ||
106 | while (1) | |
107 | { | |
108 | int this_option_optind = gg_optind ? gg_optind : 1; | |
109 | int option_index = 0; | |
110 | static struct gg_option long_options[] = | |
111 | { | |
112 | {"add", 1, 0, 0}, | |
113 | {"append", 0, 0, 0}, | |
114 | {"delete", 1, 0, 0}, | |
115 | {"verbose", 0, 0, 0}, | |
116 | {"create", 0, 0, 0}, | |
117 | {"file", 1, 0, 0}, | |
118 | {0, 0, 0, 0} | |
119 | }; | |
120 | ||
121 | c = gg_getopt_long (argc, argv, "abc:d:0123456789", | |
122 | long_options, &option_index); | |
123 | if (c == -1) | |
124 | break; | |
125 | ||
126 | switch (c) | |
127 | { | |
128 | case 0: | |
129 | printf ("option %s", long_options[option_index].name); | |
130 | if (gg_optarg) | |
131 | printf (" with arg %s", gg_optarg); | |
132 | printf ("\n"); | |
133 | break; | |
134 | ||
135 | case '0': | |
136 | case '1': | |
137 | case '2': | |
138 | case '3': | |
139 | case '4': | |
140 | case '5': | |
141 | case '6': | |
142 | case '7': | |
143 | case '8': | |
144 | case '9': | |
145 | if (digit_optind != 0 && digit_optind != this_option_optind) | |
146 | printf ("digits occur in two different argv-elements.\n"); | |
147 | digit_optind = this_option_optind; | |
148 | printf ("option %c\n", c); | |
149 | break; | |
150 | ||
151 | case 'a': | |
152 | printf ("option a\n"); | |
153 | break; | |
154 | ||
155 | case 'b': | |
156 | printf ("option b\n"); | |
157 | break; | |
158 | ||
159 | case 'c': | |
160 | printf ("option c with value `%s'\n", gg_optarg); | |
161 | break; | |
162 | ||
163 | case 'd': | |
164 | printf ("option d with value `%s'\n", gg_optarg); | |
165 | break; | |
166 | ||
167 | case '?': | |
168 | break; | |
169 | ||
170 | default: | |
171 | printf ("?? getopt returned character code 0%o ??\n", c); | |
172 | } | |
173 | } | |
174 | ||
175 | if (gg_optind < argc) | |
176 | { | |
177 | printf ("non-option ARGV-elements: "); | |
178 | while (gg_optind < argc) | |
179 | printf ("%s ", argv[gg_optind++]); | |
180 | printf ("\n"); | |
181 | } | |
182 | ||
183 | exit (0); | |
184 | } | |
185 | ||
186 | #endif /* TEST */ |