summaryrefslogtreecommitdiff
path: root/lib/basename.c
diff options
context:
space:
mode:
authorAlain Magloire <alainm@gnu.org>2001-04-14 22:03:56 +0000
committerAlain Magloire <alainm@gnu.org>2001-04-14 22:03:56 +0000
commita21181758fade800c804c10e99d1bef860093ae5 (patch)
treeb32dd7559d177915760be291f8969016cd3172f5 /lib/basename.c
parentd88edc69d744b6975bf74862eb4f4da906bfcc57 (diff)
downloadmailutils-a21181758fade800c804c10e99d1bef860093ae5.tar.gz
mailutils-a21181758fade800c804c10e99d1bef860093ae5.tar.bz2
add basename.c
Diffstat (limited to 'lib/basename.c')
-rw-r--r--lib/basename.c71
1 files changed, 71 insertions, 0 deletions
diff --git a/lib/basename.c b/lib/basename.c
new file mode 100644
index 000000000..36e0f62b1
--- /dev/null
+++ b/lib/basename.c
@@ -0,0 +1,71 @@
+/* basename.c -- return the last element in a path
+ Copyright (C) 1990, 1998, 1999, 2000, 2001 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+
+#if HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <stdio.h>
+#include <assert.h>
+
+#ifndef FILESYSTEM_PREFIX_LEN
+# define FILESYSTEM_PREFIX_LEN(Filename) 0
+#endif
+
+#ifndef PARAMS
+# if defined PROTOTYPES || (defined __STDC__ && __STDC__)
+# define PARAMS(Args) Args
+# else
+# define PARAMS(Args) ()
+# endif
+#endif
+
+#ifndef ISSLASH
+# define ISSLASH(C) ((C) == '/')
+#endif
+
+char *base_name PARAMS ((char const *name));
+
+/* In general, we can't use the builtin `basename' function if available,
+ since it has different meanings in different environments.
+ In some environments the builtin `basename' modifies its argument.
+ If NAME is all slashes, be sure to return `/'. */
+
+char *
+base_name (char const *name)
+{
+ char const *base = name += FILESYSTEM_PREFIX_LEN (name);
+ int all_slashes = 1;
+ char const *p;
+
+ for (p = name; *p; p++)
+ {
+ if (ISSLASH (*p))
+ base = p + 1;
+ else
+ all_slashes = 0;
+ }
+
+ /* If NAME is all slashes, arrange to return `/'. */
+ if (*base == '\0' && ISSLASH (*name) && all_slashes)
+ --base;
+
+ /* Make sure the last byte is not a slash. */
+ assert (all_slashes || !ISSLASH (*(p - 1)));
+
+ return (char *) base;
+}

Return to:

Send suggestions and report system problems to the System administrator.