1 /* basename -- strip directory and suffix from filenames
2 Copyright (C) 1990, 1991 Free Software Foundation, Inc.
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)
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.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
18 /* Usage: basename name [suffix]
19 NAME is a pathname; SUFFIX is a suffix to strip from it.
21 basename /usr/foo/lossage/functions.l
23 basename /usr/foo/lossage/functions.l .l
25 basename functions.lisp p
29 #include <sys/types.h>
36 void strip_trailing_slashes ();
38 static void remove_suffix ();
40 /* The name this program was run with. */
43 /* If non-zero, display usage information and exit. */
46 /* If non-zero, print the version on standard error. */
47 static int show_version;
49 static struct option const long_options[] =
51 {"help", no_argument, &show_help, 1},
52 {"version", no_argument, &show_version, 1},
59 fprintf (stderr, "Usage: %s [{--help,--version}] name [suffix]\n",
72 program_name = argv[0];
74 while ((c = getopt_long (argc, argv, "", long_options, (int *) 0)) != EOF)
88 printf ("%s\n", version_string);
95 if (argc - optind == 0 || argc - optind > 2)
98 strip_trailing_slashes (argv[optind]);
100 name = basename (argv[optind]);
103 remove_suffix (name, argv[optind + 1]);
110 /* Remove SUFFIX from the end of NAME if it is there, unless NAME
111 consists entirely of SUFFIX. */
114 remove_suffix (name, suffix)
115 register char *name, *suffix;
117 register char *np, *sp;
119 np = name + strlen (name);
120 sp = suffix + strlen (suffix);
122 while (np > name && sp > suffix)