183 lines
4.7 KiB
C
183 lines
4.7 KiB
C
/* getopt_long and getopt_long_only entry points for GNU getopt.
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Copyright (C) 1987,88,89,90,91,92,93,94,96,97,98
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Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include "getopt.h"
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#if !defined __STDC__ || !__STDC__
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/* This is a separate conditional since some stdc systems
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reject `defined (const)'. */
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#ifndef const
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#define const
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#endif
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#endif
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#include <stdio.h>
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/* Comment out all this code if we are using the GNU C Library, and are not
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actually compiling the library itself. This code is part of the GNU C
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Library, but also included in many other GNU distributions. Compiling
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and linking in this code is a waste when using the GNU C library
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(especially if it is a shared library). Rather than having every GNU
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program understand `configure --with-gnu-libc' and omit the object files,
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it is simpler to just do this in the source for each such file. */
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#define GETOPT_INTERFACE_VERSION 2
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#if !defined _LIBC && defined __GLIBC__ && __GLIBC__ >= 2
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#include <gnu-versions.h>
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#if _GNU_GETOPT_INTERFACE_VERSION == GETOPT_INTERFACE_VERSION
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#define ELIDE_CODE
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#endif
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#endif
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#ifndef ELIDE_CODE
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/* This needs to come after some library #include
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to get __GNU_LIBRARY__ defined. */
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#ifdef __GNU_LIBRARY__
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#include <stdlib.h>
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#endif
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#ifndef NULL
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#define NULL 0
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#endif
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int
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getopt_long(argc, argv, options, long_options, opt_index)
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int argc;
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char *const *argv;
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const char *options;
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const struct option *long_options;
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int *opt_index;
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{
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return _getopt_internal(argc, argv, options, long_options, opt_index, 0);
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}
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/* Like getopt_long, but '-' as well as '--' can indicate a long option.
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If an option that starts with '-' (not '--') doesn't match a long option,
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but does match a short option, it is parsed as a short option
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instead. */
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int
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getopt_long_only(argc, argv, options, long_options, opt_index)
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int argc;
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char *const *argv;
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const char *options;
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const struct option *long_options;
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int *opt_index;
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{
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return _getopt_internal(argc, argv, options, long_options, opt_index, 1);
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}
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#endif /* Not ELIDE_CODE. */
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#ifdef TEST
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#include <stdio.h>
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int
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main(argc, argv)
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int argc;
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char **argv;
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{
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int c;
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int digit_optind = 0;
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while (1) {
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int this_option_optind = optind ? optind : 1;
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int option_index = 0;
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static struct option long_options[] = {
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{"add", 1, 0, 0},
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{"append", 0, 0, 0},
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{"delete", 1, 0, 0},
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{"verbose", 0, 0, 0},
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{"create", 0, 0, 0},
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{"file", 1, 0, 0},
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{0, 0, 0, 0}
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};
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c = getopt_long(argc, argv, "abc:d:0123456789", long_options, &option_index);
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if (c == -1)
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break;
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switch (c) {
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case 0:
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printf("option %s", long_options[option_index].name);
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if (optarg)
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printf(" with arg %s", optarg);
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printf("\n");
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break;
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case '0':
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case '1':
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case '2':
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case '3':
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case '4':
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case '5':
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case '6':
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case '7':
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case '8':
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case '9':
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if (digit_optind != 0 && digit_optind != this_option_optind)
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printf("digits occur in two different argv-elements.\n");
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digit_optind = this_option_optind;
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printf("option %c\n", c);
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break;
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case 'a':
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printf("option a\n");
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break;
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case 'b':
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printf("option b\n");
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break;
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case 'c':
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printf("option c with value `%s'\n", optarg);
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break;
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case 'd':
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printf("option d with value `%s'\n", optarg);
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break;
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case '?':
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break;
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default:
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printf("?? getopt returned character code 0%o ??\n", c);
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}
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}
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if (optind < argc) {
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printf("non-option ARGV-elements: ");
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while (optind < argc)
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printf("%s ", argv[optind++]);
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printf("\n");
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}
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exit(0);
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}
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#endif /* TEST */
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