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comparison lib/getopt1.c @ 272:d5392bb5da3c 2.5

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1 /* getopt_long and getopt_long_only entry points for GNU getopt.
2 Copyright (C) 1987,88,89,90,91,92,93,94,96,97,98,2004,2006
3 Free Software Foundation, Inc.
4 This file is part of the GNU C Library.
5
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 3 of the License, or
9 (at your option) any later version.
10
11 This program 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 this program. If not, see <http://www.gnu.org/licenses/>. */
18
19 #ifdef _LIBC
20 # include <getopt.h>
21 #else
22 # include <config.h>
23 # include "getopt.h"
24 #endif
25 #include "getopt_int.h"
26
27 #include <stdio.h>
28
29 /* This needs to come after some library #include
30 to get __GNU_LIBRARY__ defined. */
31 #ifdef __GNU_LIBRARY__
32 #include <stdlib.h>
33 #endif
34
35 #ifndef NULL
36 #define NULL 0
37 #endif
38
39 int
40 getopt_long (int argc, char *__getopt_argv_const *argv, const char *options,
41 const struct option *long_options, int *opt_index)
42 {
43 return _getopt_internal (argc, (char **) argv, options, long_options,
44 opt_index, 0, 0);
45 }
46
47 int
48 _getopt_long_r (int argc, char **argv, const char *options,
49 const struct option *long_options, int *opt_index,
50 struct _getopt_data *d)
51 {
52 return _getopt_internal_r (argc, argv, options, long_options, opt_index,
53 0, 0, d);
54 }
55
56 /* Like getopt_long, but '-' as well as '--' can indicate a long option.
57 If an option that starts with '-' (not '--') doesn't match a long option,
58 but does match a short option, it is parsed as a short option
59 instead. */
60
61 int
62 getopt_long_only (int argc, char *__getopt_argv_const *argv,
63 const char *options,
64 const struct option *long_options, int *opt_index)
65 {
66 return _getopt_internal (argc, (char **) argv, options, long_options,
67 opt_index, 1, 0);
68 }
69
70 int
71 _getopt_long_only_r (int argc, char **argv, const char *options,
72 const struct option *long_options, int *opt_index,
73 struct _getopt_data *d)
74 {
75 return _getopt_internal_r (argc, argv, options, long_options, opt_index,
76 1, 0, d);
77 }
78
79
80 #ifdef TEST
81
82 #include <stdio.h>
83
84 int
85 main (int argc, char **argv)
86 {
87 int c;
88 int digit_optind = 0;
89
90 while (1)
91 {
92 int this_option_optind = optind ? optind : 1;
93 int option_index = 0;
94 static struct option long_options[] =
95 {
96 {"add", 1, 0, 0},
97 {"append", 0, 0, 0},
98 {"delete", 1, 0, 0},
99 {"verbose", 0, 0, 0},
100 {"create", 0, 0, 0},
101 {"file", 1, 0, 0},
102 {0, 0, 0, 0}
103 };
104
105 c = getopt_long (argc, argv, "abc:d:0123456789",
106 long_options, &option_index);
107 if (c == -1)
108 break;
109
110 switch (c)
111 {
112 case 0:
113 printf ("option %s", long_options[option_index].name);
114 if (optarg)
115 printf (" with arg %s", optarg);
116 printf ("\n");
117 break;
118
119 case '0':
120 case '1':
121 case '2':
122 case '3':
123 case '4':
124 case '5':
125 case '6':
126 case '7':
127 case '8':
128 case '9':
129 if (digit_optind != 0 && digit_optind != this_option_optind)
130 printf ("digits occur in two different argv-elements.\n");
131 digit_optind = this_option_optind;
132 printf ("option %c\n", c);
133 break;
134
135 case 'a':
136 printf ("option a\n");
137 break;
138
139 case 'b':
140 printf ("option b\n");
141 break;
142
143 case 'c':
144 printf ("option c with value `%s'\n", optarg);
145 break;
146
147 case 'd':
148 printf ("option d with value `%s'\n", optarg);
149 break;
150
151 case '?':
152 break;
153
154 default:
155 printf ("?? getopt returned character code 0%o ??\n", c);
156 }
157 }
158
159 if (optind < argc)
160 {
161 printf ("non-option ARGV-elements: ");
162 while (optind < argc)
163 printf ("%s ", argv[optind++]);
164 printf ("\n");
165 }
166
167 exit (0);
168 }
169
170 #endif /* TEST */