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/* 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 Free Software Foundation, Inc. |
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|
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NOTE: The canonical source of this file is maintained with the GNU C Library. |
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Bugs can be reported to bug-glibc@prep.ai.mit.edu. |
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|
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This program is free software; you can redistribute it and/or modify it |
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under the terms of the GNU General Public License as published by the |
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Free Software Foundation; either version 2, or (at your option) any |
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later version. |
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|
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This program 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 |
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GNU General Public License for more details. |
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|
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You should have received a copy of the GNU General Public License |
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along with this program; if not, write to the Free Software |
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Foundation, Inc. 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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*/ |
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|
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#ifdef HAVE_CONFIG_H |
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#include <config.h> |
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#endif |
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|
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#include "getopt.h" |
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|
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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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|
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#include <stdio.h> |
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|
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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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|
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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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|
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#ifndef ELIDE_CODE |
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|
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|
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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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|
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#ifndef NULL |
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#define NULL 0 |
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#endif |
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|
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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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|
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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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|
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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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|
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|
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#endif /* Not ELIDE_CODE. */ |
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|
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#ifdef TEST |
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|
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#include <stdio.h> |
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|
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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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|
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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 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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|
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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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|
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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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|
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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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|
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case 'a': |
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printf ("option a\n"); |
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break; |
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|
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case 'b': |
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printf ("option b\n"); |
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break; |
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|
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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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|
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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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|
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case '?': |
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break; |
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|
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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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|
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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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|
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exit (0); |
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} |
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|
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#endif /* TEST */ |
