Mercurial > gnulib
annotate lib/long-options.c @ 649:89f4c1937ac7
update FSF address in copyright and remove any trailing blanks
| author | Jim Meyering <jim@meyering.net> |
|---|---|
| date | Mon, 15 Jul 1996 02:41:49 +0000 |
| parents | 8461c3b8595a |
| children | f9f8782ba476 |
| rev | line source |
|---|---|
| 317 | 1 /* Utility to accept --help and --version options as unobtrusively as possible. |
| 2 Copyright (C) 1993, 1994 Free Software Foundation, Inc. | |
| 3 | |
| 4 This program is free software; you can redistribute it and/or modify | |
| 5 it under the terms of the GNU General Public License as published by | |
| 6 the Free Software Foundation; either version 2, or (at your option) | |
| 7 any later version. | |
| 8 | |
| 9 This program is distributed in the hope that it will be useful, | |
| 10 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 12 GNU General Public License for more details. | |
| 13 | |
| 14 You should have received a copy of the GNU General Public License | |
|
649
89f4c1937ac7
update FSF address in copyright and remove any trailing blanks
Jim Meyering <jim@meyering.net>
parents:
446
diff
changeset
|
15 along with this program; if not, write to the Free Software Foundation, |
|
89f4c1937ac7
update FSF address in copyright and remove any trailing blanks
Jim Meyering <jim@meyering.net>
parents:
446
diff
changeset
|
16 Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
| 317 | 17 |
|
649
89f4c1937ac7
update FSF address in copyright and remove any trailing blanks
Jim Meyering <jim@meyering.net>
parents:
446
diff
changeset
|
18 /* Written by Jim Meyering. */ |
| 317 | 19 |
| 20 #ifdef HAVE_CONFIG_H | |
| 21 #include <config.h> | |
| 22 #endif | |
| 23 | |
| 24 #include <stdio.h> | |
| 25 #include <getopt.h> | |
| 26 #include "long-options.h" | |
| 27 | |
| 28 static struct option const long_options[] = | |
| 29 { | |
| 30 {"help", no_argument, 0, 'h'}, | |
| 31 {"version", no_argument, 0, 'v'}, | |
| 32 {0, 0, 0, 0} | |
| 33 }; | |
| 34 | |
| 35 /* Process long options --help and --version, but only if argc == 2. | |
| 36 Be careful not to gobble up `--'. */ | |
| 37 | |
| 38 void | |
| 39 parse_long_options (argc, argv, command_name, version_string, usage) | |
| 40 int argc; | |
| 41 char **argv; | |
| 42 const char *command_name; | |
| 43 const char *version_string; | |
| 44 void (*usage)(); | |
| 45 { | |
| 46 int c; | |
| 47 int saved_opterr; | |
| 48 int saved_optind; | |
| 49 | |
| 50 saved_opterr = opterr; | |
| 51 saved_optind = optind; | |
| 52 | |
| 53 /* Don't print an error message for unrecognized options. */ | |
| 54 opterr = 0; | |
| 55 | |
| 56 if (argc == 2 | |
| 57 && (c = getopt_long (argc, argv, "+", long_options, (int *) 0)) != EOF) | |
| 58 { | |
| 59 switch (c) | |
| 60 { | |
| 61 case 'h': | |
| 62 (*usage) (0); | |
| 63 | |
| 64 case 'v': | |
| 65 printf ("%s - %s\n", command_name, version_string); | |
| 66 exit (0); | |
|
446
8461c3b8595a
Remove trailing white space.
Jim Meyering <jim@meyering.net>
parents:
317
diff
changeset
|
67 |
| 317 | 68 default: |
| 69 /* Don't process any other long-named options. */ | |
| 70 break; | |
| 71 } | |
| 72 } | |
| 73 | |
| 74 /* Restore previous value. */ | |
| 75 opterr = saved_opterr; | |
| 76 | |
| 77 /* Restore optind in case it has advanced past a leading `--'. */ | |
| 78 optind = saved_optind; | |
| 79 } |