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- /* basename -- strip directory and suffix from filenames
- Copyright (C) 90, 91, 92, 93, 1994 Free Software Foundation, Inc.
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2, or (at your option)
- any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
-
- /* Usage: basename name [suffix]
- NAME is a pathname; SUFFIX is a suffix to strip from it.
-
- basename /usr/foo/lossage/functions.l
- => functions.l
- basename /usr/foo/lossage/functions.l .l
- => functions
- basename functions.lisp p
- => functions.lis */
-
- #include <config.h>
- #include <stdio.h>
- #include <sys/types.h>
-
- #include "system.h"
- #include "version.h"
- #include "long-options.h"
-
- char *basename ();
- void error ();
- void strip_trailing_slashes ();
-
- static void remove_suffix ();
-
- /* The name this program was run with. */
- char *program_name;
-
- static void
- usage (status)
- int status;
- {
- if (status != 0)
- fprintf (stderr, "Try `%s --help' for more information.\n",
- program_name);
- else
- {
- printf ("\
- Usage: %s PATH [SUFFIX]\n\
- or: %s OPTION\n\
- ",
- program_name, program_name);
- printf ("\
- \n\
- --help display this help and exit\n\
- --version output version information and exit\n\
- ");
- }
- exit (status);
- }
-
- void
- main (argc, argv)
- int argc;
- char **argv;
- {
- char *name;
-
- program_name = argv[0];
-
- parse_long_options (argc, argv, "basename", version_string, usage);
-
- if (argc == 1 || argc > 3)
- {
- error (0, 0, "too %s arguments", argc == 1 ? "few" : "many");
- usage (1);
- }
-
- strip_trailing_slashes (argv[1]);
-
- name = basename (argv[1]);
-
- if (argc == 3)
- remove_suffix (name, argv[2]);
-
- puts (name);
-
- exit (0);
- }
-
- /* Remove SUFFIX from the end of NAME if it is there, unless NAME
- consists entirely of SUFFIX. */
-
- static void
- remove_suffix (name, suffix)
- register char *name, *suffix;
- {
- register char *np, *sp;
-
- np = name + strlen (name);
- sp = suffix + strlen (suffix);
-
- while (np > name && sp > suffix)
- if (*--np != *--sp)
- return;
- if (np > name)
- *np = '\0';
- }
-