polymake/Makefile.in: add work-around for polymake 2.3
[barvinok.git] / lib / stripslash.c
blob342d497c89930cbbcc6e55ec7e1ab11853d7a229
1 /* stripslash.c -- remove redundant trailing slashes from a file name
3 Copyright (C) 1990, 2001, 2003-2006 Free Software Foundation, Inc.
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 2, or (at your option)
8 any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software Foundation,
17 Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
19 #include <config.h>
21 #include "dirname.h"
23 /* Remove trailing slashes from FILE. Return true if a trailing slash
24 was removed. This is useful when using file name completion from a
25 shell that adds a "/" after directory names (such as tcsh and
26 bash), because on symlinks to directories, several system calls
27 have different semantics according to whether a trailing slash is
28 present. */
30 bool
31 strip_trailing_slashes (char *file)
33 char *base = last_component (file);
34 char *base_lim;
35 bool had_slash;
37 /* last_component returns "" for file system roots, but we need to turn
38 `///' into `/'. */
39 if (! *base)
40 base = file;
41 base_lim = base + base_len (base);
42 had_slash = (*base_lim != '\0');
43 *base_lim = '\0';
44 return had_slash;