octave-nkf/gnulib-hg: lib/basename.c annotate

annotate lib/basename.c @ 3241:3de6cd0813b1

(FILESYSTEM_PREFIX_LEN, PARAMS, ISSLASH): Remove; now in dirname.h. Do not include <stdio.h>, <assert.h>; no longer needed. Include <string.h>, <dirname.h>. (base_name): Allow file names ending in slashes, other than names that are all slashes. In this case, return the basename followed by the slashes. This is more general, and can be used in places where the original base_name purposely had an assertion failure. (base_len): New function.

author	Jim Meyering <jim@meyering.net>
date	Sat, 12 May 2001 14:23:49 +0000
parents	11b1f9a9da67
children	025019cda2d6

rev	line source
1250 29ccc7d6e9e9 add copyright Jim Meyering <jim@meyering.net> parents: 958 diff changeset	1 /* basename.c -- return the last element in a path
3107 11b1f9a9da67 Include <stdio.h>, needed by assert on SunOS4. Jim Meyering <jim@meyering.net> parents: 2786 diff changeset	2 Copyright (C) 1990, 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
1250 29ccc7d6e9e9 add copyright Jim Meyering <jim@meyering.net> parents: 958 diff changeset	3
29ccc7d6e9e9 add copyright Jim Meyering <jim@meyering.net> parents: 958 diff changeset	4 This program is free software; you can redistribute it and/or modify
29ccc7d6e9e9 add copyright Jim Meyering <jim@meyering.net> parents: 958 diff changeset	5 it under the terms of the GNU General Public License as published by
29ccc7d6e9e9 add copyright Jim Meyering <jim@meyering.net> parents: 958 diff changeset	6 the Free Software Foundation; either version 2, or (at your option)
29ccc7d6e9e9 add copyright Jim Meyering <jim@meyering.net> parents: 958 diff changeset	7 any later version.
29ccc7d6e9e9 add copyright Jim Meyering <jim@meyering.net> parents: 958 diff changeset	8
29ccc7d6e9e9 add copyright Jim Meyering <jim@meyering.net> parents: 958 diff changeset	9 This program is distributed in the hope that it will be useful,
29ccc7d6e9e9 add copyright Jim Meyering <jim@meyering.net> parents: 958 diff changeset	10 but WITHOUT ANY WARRANTY; without even the implied warranty of
29ccc7d6e9e9 add copyright Jim Meyering <jim@meyering.net> parents: 958 diff changeset	11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
29ccc7d6e9e9 add copyright Jim Meyering <jim@meyering.net> parents: 958 diff changeset	12 GNU General Public License for more details.
29ccc7d6e9e9 add copyright Jim Meyering <jim@meyering.net> parents: 958 diff changeset	13
29ccc7d6e9e9 add copyright Jim Meyering <jim@meyering.net> parents: 958 diff changeset	14 You should have received a copy of the GNU General Public License
29ccc7d6e9e9 add copyright Jim Meyering <jim@meyering.net> parents: 958 diff changeset	15 along with this program; if not, write to the Free Software Foundation,
29ccc7d6e9e9 add copyright Jim Meyering <jim@meyering.net> parents: 958 diff changeset	16 Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
9 f8dce34b5ab0 Initial revision Jim Meyering <jim@meyering.net> parents: diff changeset	17
922 9cb09b60925d Update from FSF via patch-2.2.93. Jim Meyering <jim@meyering.net> parents: 653 diff changeset	18 #if HAVE_CONFIG_H
653 b63f146fd963 indent cpp-directives Jim Meyering <jim@meyering.net> parents: 650 diff changeset	19 # include <config.h>
379 0c05dc8a5d05 (basename): Use strrchr, not rindex. Jim Meyering <jim@meyering.net> parents: 9 diff changeset	20 #endif
0c05dc8a5d05 (basename): Use strrchr, not rindex. Jim Meyering <jim@meyering.net> parents: 9 diff changeset	21
3241 3de6cd0813b1 (FILESYSTEM_PREFIX_LEN, PARAMS, ISSLASH): Remove; now in dirname.h. Jim Meyering <jim@meyering.net> parents: 3107 diff changeset	22 #if STDC_HEADERS \|\| HAVE_STRING_H
3de6cd0813b1 (FILESYSTEM_PREFIX_LEN, PARAMS, ISSLASH): Remove; now in dirname.h. Jim Meyering <jim@meyering.net> parents: 3107 diff changeset	23 # include <string.h>
922 9cb09b60925d Update from FSF via patch-2.2.93. Jim Meyering <jim@meyering.net> parents: 653 diff changeset	24 #endif
3241 3de6cd0813b1 (FILESYSTEM_PREFIX_LEN, PARAMS, ISSLASH): Remove; now in dirname.h. Jim Meyering <jim@meyering.net> parents: 3107 diff changeset	25 #include <dirname.h>
1952 8c28becce781 (base_name): Add prototype. From Akim Demaille. Jim Meyering <jim@meyering.net> parents: 1738 diff changeset	26
922 9cb09b60925d Update from FSF via patch-2.2.93. Jim Meyering <jim@meyering.net> parents: 653 diff changeset	27 /* In general, we can't use the builtin `basename' function if available,
9cb09b60925d Update from FSF via patch-2.2.93. Jim Meyering <jim@meyering.net> parents: 653 diff changeset	28 since it has different meanings in different environments.
1737 c6a6decaf2ad (base_name): If NAME is all slashes, return `/' (in Jim Meyering <jim@meyering.net> parents: 1251 diff changeset	29 In some environments the builtin `basename' modifies its argument.
3241 3de6cd0813b1 (FILESYSTEM_PREFIX_LEN, PARAMS, ISSLASH): Remove; now in dirname.h. Jim Meyering <jim@meyering.net> parents: 3107 diff changeset	30
3de6cd0813b1 (FILESYSTEM_PREFIX_LEN, PARAMS, ISSLASH): Remove; now in dirname.h. Jim Meyering <jim@meyering.net> parents: 3107 diff changeset	31 Return the address of the last file name component of NAME. If
3de6cd0813b1 (FILESYSTEM_PREFIX_LEN, PARAMS, ISSLASH): Remove; now in dirname.h. Jim Meyering <jim@meyering.net> parents: 3107 diff changeset	32 NAME has no file name components because it is all slashes, return
3de6cd0813b1 (FILESYSTEM_PREFIX_LEN, PARAMS, ISSLASH): Remove; now in dirname.h. Jim Meyering <jim@meyering.net> parents: 3107 diff changeset	33 NAME if it is empty, the address of its last slash otherwise. */
9 f8dce34b5ab0 Initial revision Jim Meyering <jim@meyering.net> parents: diff changeset	34
f8dce34b5ab0 Initial revision Jim Meyering <jim@meyering.net> parents: diff changeset	35 char *
1251 d7d7a33a5fd3 capitalize macro params and protoize Jim Meyering <jim@meyering.net> parents: 1250 diff changeset	36 base_name (char const *name)
9 f8dce34b5ab0 Initial revision Jim Meyering <jim@meyering.net> parents: diff changeset	37 {
3241 3de6cd0813b1 (FILESYSTEM_PREFIX_LEN, PARAMS, ISSLASH): Remove; now in dirname.h. Jim Meyering <jim@meyering.net> parents: 3107 diff changeset	38 char const *base = name + FILESYSTEM_PREFIX_LEN (name);
1737 c6a6decaf2ad (base_name): If NAME is all slashes, return `/' (in Jim Meyering <jim@meyering.net> parents: 1251 diff changeset	39 char const *p;
9 f8dce34b5ab0 Initial revision Jim Meyering <jim@meyering.net> parents: diff changeset	40
3241 3de6cd0813b1 (FILESYSTEM_PREFIX_LEN, PARAMS, ISSLASH): Remove; now in dirname.h. Jim Meyering <jim@meyering.net> parents: 3107 diff changeset	41 for (p = base; *p; p++)
1737 c6a6decaf2ad (base_name): If NAME is all slashes, return `/' (in Jim Meyering <jim@meyering.net> parents: 1251 diff changeset	42 {
c6a6decaf2ad (base_name): If NAME is all slashes, return `/' (in Jim Meyering <jim@meyering.net> parents: 1251 diff changeset	43 if (ISSLASH (*p))
3241 3de6cd0813b1 (FILESYSTEM_PREFIX_LEN, PARAMS, ISSLASH): Remove; now in dirname.h. Jim Meyering <jim@meyering.net> parents: 3107 diff changeset	44 {
3de6cd0813b1 (FILESYSTEM_PREFIX_LEN, PARAMS, ISSLASH): Remove; now in dirname.h. Jim Meyering <jim@meyering.net> parents: 3107 diff changeset	45 /* Treat multiple adjacent slashes like a single slash. */
3de6cd0813b1 (FILESYSTEM_PREFIX_LEN, PARAMS, ISSLASH): Remove; now in dirname.h. Jim Meyering <jim@meyering.net> parents: 3107 diff changeset	46 do p++;
3de6cd0813b1 (FILESYSTEM_PREFIX_LEN, PARAMS, ISSLASH): Remove; now in dirname.h. Jim Meyering <jim@meyering.net> parents: 3107 diff changeset	47 while (ISSLASH (*p));
1737 c6a6decaf2ad (base_name): If NAME is all slashes, return `/' (in Jim Meyering <jim@meyering.net> parents: 1251 diff changeset	48
3241 3de6cd0813b1 (FILESYSTEM_PREFIX_LEN, PARAMS, ISSLASH): Remove; now in dirname.h. Jim Meyering <jim@meyering.net> parents: 3107 diff changeset	49 /* If the file name ends in slash, use the trailing slash as
3de6cd0813b1 (FILESYSTEM_PREFIX_LEN, PARAMS, ISSLASH): Remove; now in dirname.h. Jim Meyering <jim@meyering.net> parents: 3107 diff changeset	50 the basename if no non-slashes have been found. */
3de6cd0813b1 (FILESYSTEM_PREFIX_LEN, PARAMS, ISSLASH): Remove; now in dirname.h. Jim Meyering <jim@meyering.net> parents: 3107 diff changeset	51 if (! *p)
3de6cd0813b1 (FILESYSTEM_PREFIX_LEN, PARAMS, ISSLASH): Remove; now in dirname.h. Jim Meyering <jim@meyering.net> parents: 3107 diff changeset	52 {
3de6cd0813b1 (FILESYSTEM_PREFIX_LEN, PARAMS, ISSLASH): Remove; now in dirname.h. Jim Meyering <jim@meyering.net> parents: 3107 diff changeset	53 if (ISSLASH (*base))
3de6cd0813b1 (FILESYSTEM_PREFIX_LEN, PARAMS, ISSLASH): Remove; now in dirname.h. Jim Meyering <jim@meyering.net> parents: 3107 diff changeset	54 base = p - 1;
3de6cd0813b1 (FILESYSTEM_PREFIX_LEN, PARAMS, ISSLASH): Remove; now in dirname.h. Jim Meyering <jim@meyering.net> parents: 3107 diff changeset	55 break;
3de6cd0813b1 (FILESYSTEM_PREFIX_LEN, PARAMS, ISSLASH): Remove; now in dirname.h. Jim Meyering <jim@meyering.net> parents: 3107 diff changeset	56 }
922 9cb09b60925d Update from FSF via patch-2.2.93. Jim Meyering <jim@meyering.net> parents: 653 diff changeset	57
3241 3de6cd0813b1 (FILESYSTEM_PREFIX_LEN, PARAMS, ISSLASH): Remove; now in dirname.h. Jim Meyering <jim@meyering.net> parents: 3107 diff changeset	58 /* P is a non-slash preceded by a slash. /
3de6cd0813b1 (FILESYSTEM_PREFIX_LEN, PARAMS, ISSLASH): Remove; now in dirname.h. Jim Meyering <jim@meyering.net> parents: 3107 diff changeset	59 base = p;
3de6cd0813b1 (FILESYSTEM_PREFIX_LEN, PARAMS, ISSLASH): Remove; now in dirname.h. Jim Meyering <jim@meyering.net> parents: 3107 diff changeset	60 }
3de6cd0813b1 (FILESYSTEM_PREFIX_LEN, PARAMS, ISSLASH): Remove; now in dirname.h. Jim Meyering <jim@meyering.net> parents: 3107 diff changeset	61 }
2763 8a832ac25a04 (base_name): Add an assertion. Jim Meyering <jim@meyering.net> parents: 2718 diff changeset	62
590 cf44c49093fd (basename): Rewrite so it doesn't rely on strrchr, Jim Meyering <jim@meyering.net> parents: 421 diff changeset	63 return (char *) base;
9 f8dce34b5ab0 Initial revision Jim Meyering <jim@meyering.net> parents: diff changeset	64 }
3241 3de6cd0813b1 (FILESYSTEM_PREFIX_LEN, PARAMS, ISSLASH): Remove; now in dirname.h. Jim Meyering <jim@meyering.net> parents: 3107 diff changeset	65
3de6cd0813b1 (FILESYSTEM_PREFIX_LEN, PARAMS, ISSLASH): Remove; now in dirname.h. Jim Meyering <jim@meyering.net> parents: 3107 diff changeset	66 /* Return the length of of the basename NAME. Typically NAME is the
3de6cd0813b1 (FILESYSTEM_PREFIX_LEN, PARAMS, ISSLASH): Remove; now in dirname.h. Jim Meyering <jim@meyering.net> parents: 3107 diff changeset	67 value returned by base_name. Act like strlen (NAME), except omit
3de6cd0813b1 (FILESYSTEM_PREFIX_LEN, PARAMS, ISSLASH): Remove; now in dirname.h. Jim Meyering <jim@meyering.net> parents: 3107 diff changeset	68 redundant trailing slashes. */
3de6cd0813b1 (FILESYSTEM_PREFIX_LEN, PARAMS, ISSLASH): Remove; now in dirname.h. Jim Meyering <jim@meyering.net> parents: 3107 diff changeset	69
3de6cd0813b1 (FILESYSTEM_PREFIX_LEN, PARAMS, ISSLASH): Remove; now in dirname.h. Jim Meyering <jim@meyering.net> parents: 3107 diff changeset	70 size_t
3de6cd0813b1 (FILESYSTEM_PREFIX_LEN, PARAMS, ISSLASH): Remove; now in dirname.h. Jim Meyering <jim@meyering.net> parents: 3107 diff changeset	71 base_len (char const *name)
3de6cd0813b1 (FILESYSTEM_PREFIX_LEN, PARAMS, ISSLASH): Remove; now in dirname.h. Jim Meyering <jim@meyering.net> parents: 3107 diff changeset	72 {
3de6cd0813b1 (FILESYSTEM_PREFIX_LEN, PARAMS, ISSLASH): Remove; now in dirname.h. Jim Meyering <jim@meyering.net> parents: 3107 diff changeset	73 size_t len;
3de6cd0813b1 (FILESYSTEM_PREFIX_LEN, PARAMS, ISSLASH): Remove; now in dirname.h. Jim Meyering <jim@meyering.net> parents: 3107 diff changeset	74
3de6cd0813b1 (FILESYSTEM_PREFIX_LEN, PARAMS, ISSLASH): Remove; now in dirname.h. Jim Meyering <jim@meyering.net> parents: 3107 diff changeset	75 for (len = strlen (name); 1 < len && ISSLASH (name[len - 1]); len--)
3de6cd0813b1 (FILESYSTEM_PREFIX_LEN, PARAMS, ISSLASH): Remove; now in dirname.h. Jim Meyering <jim@meyering.net> parents: 3107 diff changeset	76 continue;
3de6cd0813b1 (FILESYSTEM_PREFIX_LEN, PARAMS, ISSLASH): Remove; now in dirname.h. Jim Meyering <jim@meyering.net> parents: 3107 diff changeset	77
3de6cd0813b1 (FILESYSTEM_PREFIX_LEN, PARAMS, ISSLASH): Remove; now in dirname.h. Jim Meyering <jim@meyering.net> parents: 3107 diff changeset	78 return len;
3de6cd0813b1 (FILESYSTEM_PREFIX_LEN, PARAMS, ISSLASH): Remove; now in dirname.h. Jim Meyering <jim@meyering.net> parents: 3107 diff changeset	79 }

Mercurial > hg > octave-nkf > gnulib-hg

annotate lib/basename.c @ 3241:3de6cd0813b1