160 lines
3.7 KiB
C
160 lines
3.7 KiB
C
/* getopt_long and getopt_long_only entry points for GNU getopt.
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Copyright (C) 1987-2022 Free Software Foundation, Inc.
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This file is part of the GNU C Library and is also part of gnulib.
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Patches to this file should be submitted to both projects.
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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, see
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<https://www.gnu.org/licenses/>. */
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#ifndef _LIBC
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# include <config.h>
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#endif
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#include "getopt.h"
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#include "getopt_int.h"
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int
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getopt_long (int argc, char *__getopt_argv_const *argv, const char *options,
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const struct option *long_options, int *opt_index)
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{
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return _getopt_internal (argc, (char **) argv, options, long_options,
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opt_index, 0, 0);
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}
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int
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_getopt_long_r (int argc, char **argv, const char *options,
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const struct option *long_options, int *opt_index,
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struct _getopt_data *d)
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{
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return _getopt_internal_r (argc, argv, options, long_options, opt_index,
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0, d, 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 (int argc, char *__getopt_argv_const *argv,
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const char *options,
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const struct option *long_options, int *opt_index)
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{
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return _getopt_internal (argc, (char **) argv, options, long_options,
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opt_index, 1, 0);
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}
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int
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_getopt_long_only_r (int argc, char **argv, const char *options,
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const struct option *long_options, int *opt_index,
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struct _getopt_data *d)
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{
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return _getopt_internal_r (argc, argv, options, long_options, opt_index,
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1, d, 0);
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}
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#ifdef TEST
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#include <stdio.h>
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#include <stdlib.h>
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int
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main (int argc, 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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{
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int this_option_optind = optind ? optind : 1;
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int option_index = 0;
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static const struct option long_options[] =
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{
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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",
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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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{
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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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{
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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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