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comparison lib-src/getopt1.c @ 0:376386a54a3c r19-14

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Import from CVS: tag r19-14
author cvs
date Mon, 13 Aug 2007 08:45:50 +0200
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children 43dd3413c7c7
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-1:000000000000 0:376386a54a3c
1 /* getopt_long and getopt_long_only entry points for GNU getopt.
2 Copyright (C) 1987, 88, 89, 90, 91, 92, 1993, 1994
3 Free Software Foundation, Inc.
4
5 This program is free software; you can redistribute it and/or modify it
6 under the terms of the GNU General Public License as published by the
7 Free Software Foundation; either version 2, or (at your option) any
8 later version.
9
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
14
15 You should have received a copy of the GNU General Public License
16 along with this program; see the file COPYING. If not, write to
17 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
18 Boston, MA 02111-1307, USA. */
19
20 /* Synched up with: FSF 19.29. */
21
22
23 #ifdef HAVE_CONFIG_H
24 #if defined (emacs) || defined (CONFIG_BROKETS)
25 /* We use <config.h> instead of "config.h" so that a compilation
26 using -I. -I$srcdir will use ./config.h rather than $srcdir/config.h
27 (which it would do because it found this file in $srcdir). */
28 #include <config.h>
29 #else
30 #include "config.h"
31 #endif
32 #endif
33
34 /* This must be done before getopt.h is included so that the
35 prototypes contained in it are also affected. */
36 #if !defined (__STDC__) || !__STDC__
37 /* This is a separate conditional since some stdc systems
38 reject `defined (const)'. */
39 #ifndef const
40 #define const
41 #endif
42 #endif
43
44 #include "getopt.h"
45
46 #include <stdio.h>
47
48 /* Comment out all this code if we are using the GNU C Library, and are not
49 actually compiling the library itself. This code is part of the GNU C
50 Library, but also included in many other GNU distributions. Compiling
51 and linking in this code is a waste when using the GNU C library
52 (especially if it is a shared library). Rather than having every GNU
53 program understand `configure --with-gnu-libc' and omit the object files,
54 it is simpler to just do this in the source for each such file. */
55
56 #if defined (_LIBC) || !defined (__GNU_LIBRARY__)
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 #else
64 char *getenv ();
65 #endif
66
67 #ifndef NULL
68 #define NULL 0
69 #endif
70
71 int
72 getopt_long (int argc, char *const *argv, const char *options,
73 const struct option *long_options, int *opt_index)
74 {
75 return _getopt_internal (argc, argv, options, long_options, opt_index, 0);
76 }
77
78 /* Like getopt_long, but '-' as well as '--' can indicate a long option.
79 If an option that starts with '-' (not '--') doesn't match a long option,
80 but does match a short option, it is parsed as a short option
81 instead. */
82
83 int
84 getopt_long_only (argc, argv, options, long_options, opt_index)
85 int argc;
86 char *const *argv;
87 const char *options;
88 const struct option *long_options;
89 int *opt_index;
90 {
91 return _getopt_internal (argc, argv, options, long_options, opt_index, 1);
92 }
93
94
95 #endif /* _LIBC or not __GNU_LIBRARY__. */
96
97 #ifdef TEST
98
99 #include <stdio.h>
100
101 int
102 main (argc, argv)
103 int argc;
104 char **argv;
105 {
106 int c;
107 int digit_optind = 0;
108
109 while (1)
110 {
111 int this_option_optind = optind ? optind : 1;
112 int option_index = 0;
113 static struct option long_options[] =
114 {
115 {"add", 1, 0, 0},
116 {"append", 0, 0, 0},
117 {"delete", 1, 0, 0},
118 {"verbose", 0, 0, 0},
119 {"create", 0, 0, 0},
120 {"file", 1, 0, 0},
121 {0, 0, 0, 0}
122 };
123
124 c = getopt_long (argc, argv, "abc:d:0123456789",
125 long_options, &option_index);
126 if (c == EOF)
127 break;
128
129 switch (c)
130 {
131 case 0:
132 printf ("option %s", long_options[option_index].name);
133 if (optarg)
134 printf (" with arg %s", optarg);
135 printf ("\n");
136 break;
137
138 case '0':
139 case '1':
140 case '2':
141 case '3':
142 case '4':
143 case '5':
144 case '6':
145 case '7':
146 case '8':
147 case '9':
148 if (digit_optind != 0 && digit_optind != this_option_optind)
149 printf ("digits occur in two different argv-elements.\n");
150 digit_optind = this_option_optind;
151 printf ("option %c\n", c);
152 break;
153
154 case 'a':
155 printf ("option a\n");
156 break;
157
158 case 'b':
159 printf ("option b\n");
160 break;
161
162 case 'c':
163 printf ("option c with value `%s'\n", optarg);
164 break;
165
166 case 'd':
167 printf ("option d with value `%s'\n", optarg);
168 break;
169
170 case '?':
171 break;
172
173 default:
174 printf ("?? getopt returned character code 0%o ??\n", c);
175 }
176 }
177
178 if (optind < argc)
179 {
180 printf ("non-option ARGV-elements: ");
181 while (optind < argc)
182 printf ("%s ", argv[optind++]);
183 printf ("\n");
184 }
185
186 exit (0);
187 }
188
189 #endif /* TEST */