mirror of
https://git.savannah.gnu.org/git/coreutils.git
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130 lines
3.2 KiB
C
130 lines
3.2 KiB
C
/* basename -- strip directory and suffix from filenames
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Copyright (C) 1990-1997, 1999-2003 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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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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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 Foundation,
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Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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/* Usage: basename name [suffix]
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NAME is a pathname; SUFFIX is a suffix to strip from it.
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basename /usr/foo/lossage/functions.l
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=> functions.l
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basename /usr/foo/lossage/functions.l .l
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=> functions
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basename functions.lisp p
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=> functions.lis */
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#include <config.h>
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#include <stdio.h>
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#include <sys/types.h>
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#include "system.h"
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#include "long-options.h"
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#include "dirname.h"
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#include "error.h"
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#include "closeout.h"
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/* The official name of this program (e.g., no `g' prefix). */
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#define PROGRAM_NAME "basename"
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#define AUTHORS "FIXME unknown"
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/* The name this program was run with. */
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char *program_name;
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void
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usage (int status)
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{
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if (status != 0)
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fprintf (stderr, _("Try `%s --help' for more information.\n"),
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program_name);
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else
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{
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printf (_("\
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Usage: %s NAME [SUFFIX]\n\
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or: %s OPTION\n\
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"),
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program_name, program_name);
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fputs (_("\
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Print NAME with any leading directory components removed.\n\
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If specified, also remove a trailing SUFFIX.\n\
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\n\
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"), stdout);
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fputs (HELP_OPTION_DESCRIPTION, stdout);
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fputs (VERSION_OPTION_DESCRIPTION, stdout);
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printf (_("\nReport bugs to <%s>.\n"), PACKAGE_BUGREPORT);
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}
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exit (status);
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}
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/* Remove SUFFIX from the end of NAME if it is there, unless NAME
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consists entirely of SUFFIX. */
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static void
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remove_suffix (char *name, const char *suffix)
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{
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char *np;
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const char *sp;
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np = name + strlen (name);
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sp = suffix + strlen (suffix);
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while (np > name && sp > suffix)
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if (*--np != *--sp)
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return;
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if (np > name)
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*np = '\0';
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}
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int
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main (int argc, char **argv)
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{
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char *name;
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initialize_main (&argc, &argv);
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program_name = argv[0];
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setlocale (LC_ALL, "");
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bindtextdomain (PACKAGE, LOCALEDIR);
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textdomain (PACKAGE);
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atexit (close_stdout);
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parse_long_options (argc, argv, PROGRAM_NAME, GNU_PACKAGE, VERSION,
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AUTHORS, usage);
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/* The above handles --help and --version.
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Since there is no other invocation of getopt, handle `--' here. */
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if (argc > 1 && STREQ (argv[1], "--"))
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{
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--argc;
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++argv;
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}
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if (argc <= 1 || argc > 3)
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{
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error (0, 0, (argc <= 1 ? _("too few arguments")
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: _("too many arguments")));
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usage (EXIT_FAILURE);
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}
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name = base_name (argv[1]);
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name[base_len (name)] = '\0';
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if (argc == 3)
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remove_suffix (name, argv[2]);
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puts (name);
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exit (EXIT_SUCCESS);
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}
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