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11443f4a 1/* getopt_long and getopt_long_only entry points for GNU getopt.
d5629ce3 2 Copyright (C) 1987,88,89,90,91,92,93,94,96,97,98, 2002
11443f4a 3 Free Software Foundation, Inc.
4a0d8936 4 This file is part of the GNU C Library.
11443f4a 5
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6 This program 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.
11443f4a 10
d5629ce3 11 This program is distributed in the hope that it will be useful,
11443f4a 12 but WITHOUT ANY WARRANTY; without even the implied warranty of
d5629ce3
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13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
11443f4a 15
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16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software Foundation,
18 Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
11443f4a
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19\f
20#ifdef HAVE_CONFIG_H
21#include <config.h>
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22#endif
23
24#include "getopt.h"
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25#include <stdio.h>
26
27/* Comment out all this code if we are using the GNU C Library, and are not
28 actually compiling the library itself. This code is part of the GNU C
29 Library, but also included in many other GNU distributions. Compiling
30 and linking in this code is a waste when using the GNU C library
31 (especially if it is a shared library). Rather than having every GNU
32 program understand `configure --with-gnu-libc' and omit the object files,
33 it is simpler to just do this in the source for each such file. */
34
35#define GETOPT_INTERFACE_VERSION 2
36#if !defined _LIBC && defined __GLIBC__ && __GLIBC__ >= 2
37#include <gnu-versions.h>
38#if _GNU_GETOPT_INTERFACE_VERSION == GETOPT_INTERFACE_VERSION
39#define ELIDE_CODE
40#endif
41#endif
42
43#ifndef ELIDE_CODE
44
45
46/* This needs to come after some library #include
47 to get __GNU_LIBRARY__ defined. */
48#ifdef __GNU_LIBRARY__
49#include <stdlib.h>
50#endif
51
52#ifndef NULL
53#define NULL 0
54#endif
55
56int
57getopt_long (argc, argv, options, long_options, opt_index)
58 int argc;
59 char *const *argv;
60 const char *options;
61 const struct option *long_options;
62 int *opt_index;
63{
64 return _getopt_internal (argc, argv, options, long_options, opt_index, 0);
65}
66
67/* Like getopt_long, but '-' as well as '--' can indicate a long option.
68 If an option that starts with '-' (not '--') doesn't match a long option,
69 but does match a short option, it is parsed as a short option
70 instead. */
71
72int
73getopt_long_only (argc, argv, options, long_options, opt_index)
74 int argc;
75 char *const *argv;
76 const char *options;
77 const struct option *long_options;
78 int *opt_index;
79{
80 return _getopt_internal (argc, argv, options, long_options, opt_index, 1);
81}
82
83
84#endif /* Not ELIDE_CODE. */
85\f
86#ifdef TEST
87
88#include <stdio.h>
89
90int
91main (argc, argv)
92 int argc;
93 char **argv;
94{
95 int c;
96 int digit_optind = 0;
97
98 while (1)
99 {
100 int this_option_optind = optind ? optind : 1;
101 int option_index = 0;
102 static struct option long_options[] =
103 {
104 {"add", 1, 0, 0},
105 {"append", 0, 0, 0},
106 {"delete", 1, 0, 0},
107 {"verbose", 0, 0, 0},
108 {"create", 0, 0, 0},
109 {"file", 1, 0, 0},
110 {0, 0, 0, 0}
111 };
112
113 c = getopt_long (argc, argv, "abc:d:0123456789",
114 long_options, &option_index);
115 if (c == -1)
116 break;
117
118 switch (c)
119 {
120 case 0:
121 printf ("option %s", long_options[option_index].name);
122 if (optarg)
123 printf (" with arg %s", optarg);
124 printf ("\n");
125 break;
126
127 case '0':
128 case '1':
129 case '2':
130 case '3':
131 case '4':
132 case '5':
133 case '6':
134 case '7':
135 case '8':
136 case '9':
137 if (digit_optind != 0 && digit_optind != this_option_optind)
138 printf ("digits occur in two different argv-elements.\n");
139 digit_optind = this_option_optind;
140 printf ("option %c\n", c);
141 break;
142
143 case 'a':
144 printf ("option a\n");
145 break;
146
147 case 'b':
148 printf ("option b\n");
149 break;
150
151 case 'c':
152 printf ("option c with value `%s'\n", optarg);
153 break;
154
155 case 'd':
156 printf ("option d with value `%s'\n", optarg);
157 break;
158
159 case '?':
160 break;
161
162 default:
163 printf ("?? getopt returned character code 0%o ??\n", c);
164 }
165 }
166
167 if (optind < argc)
168 {
169 printf ("non-option ARGV-elements: ");
170 while (optind < argc)
171 printf ("%s ", argv[optind++]);
172 printf ("\n");
173 }
174
175 exit (0);
176}
177
178#endif /* TEST */