source: trunk/third/gettext/lib/getopt1.c @ 16931

Revision 16931, 4.4 KB checked in by ghudson, 23 years ago (diff)
This commit was generated by cvs2svn to compensate for changes in r16930, which included commits to RCS files with non-trunk default branches.
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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
5   NOTE: The canonical source of this file is maintained with the GNU C Library.
6   Bugs can be reported to bug-glibc@gnu.org.
7
8   This program is free software; you can redistribute it and/or modify it
9   under the terms of the GNU General Public License as published by the
10   Free Software Foundation; either version 2, or (at your option) any
11   later version.
12
13   This program is distributed in the hope that it will be useful,
14   but WITHOUT ANY WARRANTY; without even the implied warranty of
15   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16   GNU General Public License for more details.
17
18   You should have received a copy of the GNU General Public License
19   along with this program; if not, write to the Free Software
20   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
21   USA.  */
22
23#ifdef HAVE_CONFIG_H
24#include <config.h>
25#endif
26
27#include "getopt.h"
28
29#if !defined __STDC__ || !__STDC__
30/* This is a separate conditional since some stdc systems
31   reject `defined (const)'.  */
32#ifndef const
33#define const
34#endif
35#endif
36
37#include <stdio.h>
38
39/* Comment out all this code if we are using the GNU C Library, and are not
40   actually compiling the library itself.  This code is part of the GNU C
41   Library, but also included in many other GNU distributions.  Compiling
42   and linking in this code is a waste when using the GNU C library
43   (especially if it is a shared library).  Rather than having every GNU
44   program understand `configure --with-gnu-libc' and omit the object files,
45   it is simpler to just do this in the source for each such file.  */
46
47#define GETOPT_INTERFACE_VERSION 2
48#if !defined _LIBC && defined __GLIBC__ && __GLIBC__ >= 2
49#include <gnu-versions.h>
50#if _GNU_GETOPT_INTERFACE_VERSION == GETOPT_INTERFACE_VERSION
51#define ELIDE_CODE
52#endif
53#endif
54
55#ifndef ELIDE_CODE
56
57
58/* This needs to come after some library #include
59   to get __GNU_LIBRARY__ defined.  */
60#ifdef __GNU_LIBRARY__
61#include <stdlib.h>
62#endif
63
64#ifndef NULL
65#define NULL 0
66#endif
67
68int
69getopt_long (argc, argv, options, long_options, opt_index)
70     int argc;
71     char *const *argv;
72     const char *options;
73     const struct option *long_options;
74     int *opt_index;
75{
76  return _getopt_internal (argc, argv, options, long_options, opt_index, 0);
77}
78
79/* Like getopt_long, but '-' as well as '--' can indicate a long option.
80   If an option that starts with '-' (not '--') doesn't match a long option,
81   but does match a short option, it is parsed as a short option
82   instead.  */
83
84int
85getopt_long_only (argc, argv, options, long_options, opt_index)
86     int argc;
87     char *const *argv;
88     const char *options;
89     const struct option *long_options;
90     int *opt_index;
91{
92  return _getopt_internal (argc, argv, options, long_options, opt_index, 1);
93}
94
95
96#endif  /* Not ELIDE_CODE.  */
97
98#ifdef TEST
99
100#include <stdio.h>
101
102int
103main (argc, argv)
104     int argc;
105     char **argv;
106{
107  int c;
108  int digit_optind = 0;
109
110  while (1)
111    {
112      int this_option_optind = optind ? optind : 1;
113      int option_index = 0;
114      static struct option long_options[] =
115      {
116        {"add", 1, 0, 0},
117        {"append", 0, 0, 0},
118        {"delete", 1, 0, 0},
119        {"verbose", 0, 0, 0},
120        {"create", 0, 0, 0},
121        {"file", 1, 0, 0},
122        {0, 0, 0, 0}
123      };
124
125      c = getopt_long (argc, argv, "abc:d:0123456789",
126                       long_options, &option_index);
127      if (c == -1)
128        break;
129
130      switch (c)
131        {
132        case 0:
133          printf ("option %s", long_options[option_index].name);
134          if (optarg)
135            printf (" with arg %s", optarg);
136          printf ("\n");
137          break;
138
139        case '0':
140        case '1':
141        case '2':
142        case '3':
143        case '4':
144        case '5':
145        case '6':
146        case '7':
147        case '8':
148        case '9':
149          if (digit_optind != 0 && digit_optind != this_option_optind)
150            printf ("digits occur in two different argv-elements.\n");
151          digit_optind = this_option_optind;
152          printf ("option %c\n", c);
153          break;
154
155        case 'a':
156          printf ("option a\n");
157          break;
158
159        case 'b':
160          printf ("option b\n");
161          break;
162
163        case 'c':
164          printf ("option c with value `%s'\n", optarg);
165          break;
166
167        case 'd':
168          printf ("option d with value `%s'\n", optarg);
169          break;
170
171        case '?':
172          break;
173
174        default:
175          printf ("?? getopt returned character code 0%o ??\n", c);
176        }
177    }
178
179  if (optind < argc)
180    {
181      printf ("non-option ARGV-elements: ");
182      while (optind < argc)
183        printf ("%s ", argv[optind++]);
184      printf ("\n");
185    }
186
187  exit (0);
188}
189
190#endif /* TEST */
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