Initial revision

1 files changed, 78 insertions, 0 deletions

diff --git a/src/basename.c b/src/basename.c
new file mode 100644
index 000000000..767dbafc6
--- /dev/null
+++ b/src/basename.c
@@ -0,0 +1,78 @@
+/* basename -- strip directory and suffix from filenames
+   Copyright (C) 1990, 1991 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 <stdio.h>
+#include <sys/types.h>
+#include "system.h"
+
+char *basename ();
+void remove_suffix ();
+void strip_trailing_slashes ();
+
+void
+main (argc, argv)
+     int argc;
+     char **argv;
+{
+  char *name;
+
+  if (argc == 1 || argc > 3)
+    {
+      fprintf (stderr, "Usage: %s name [suffix]\n", argv[0]);
+      exit (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. */
+
+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';
+}