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-rw-r--r--lib/basename.c131
1 files changed, 0 insertions, 131 deletions
diff --git a/lib/basename.c b/lib/basename.c
deleted file mode 100644
index 8c3dbece7..000000000
--- a/lib/basename.c
+++ /dev/null
@@ -1,131 +0,0 @@
-/* basename.c -- return the last element in a file name
-
- Copyright (C) 1990, 1998, 1999, 2000, 2001, 2003, 2004, 2005, 2006 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include "dirname.h"
-
-#include <string.h>
-#include "xalloc.h"
-#include "xstrndup.h"
-
-/* Return the address of the last file name component of NAME. If
- NAME has no relative file name components because it is a file
- system root, return the empty string. */
-
-char *
-last_component (char const *name)
-{
- char const *base = name + FILE_SYSTEM_PREFIX_LEN (name);
- char const *p;
- bool saw_slash = false;
-
- while (ISSLASH (*base))
- base++;
-
- for (p = base; *p; p++)
- {
- if (ISSLASH (*p))
- saw_slash = true;
- else if (saw_slash)
- {
- base = p;
- saw_slash = false;
- }
- }
-
- return (char *) base;
-}
-
-
-/* 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.
-
- Return the last file name component of NAME, allocated with
- xmalloc. On systems with drive letters, a leading "./"
- distinguishes relative names that would otherwise look like a drive
- letter. Unlike POSIX basename(), NAME cannot be NULL,
- base_name("") returns "", and the first trailing slash is not
- stripped.
-
- If lstat (NAME) would succeed, then { chdir (dir_name (NAME));
- lstat (base_name (NAME)); } will access the same file. Likewise,
- if the sequence { chdir (dir_name (NAME));
- rename (base_name (NAME), "foo"); } succeeds, you have renamed NAME
- to "foo" in the same directory NAME was in. */
-
-char *
-base_name (char const *name)
-{
- char const *base = last_component (name);
- size_t length;
-
- /* If there is no last component, then name is a file system root or the
- empty string. */
- if (! *base)
- return xstrndup (name, base_len (name));
-
- /* Collapse a sequence of trailing slashes into one. */
- length = base_len (base);
- if (ISSLASH (base[length]))
- length++;
-
- /* On systems with drive letters, `a/b:c' must return `./b:c' rather
- than `b:c' to avoid confusion with a drive letter. On systems
- with pure POSIX semantics, this is not an issue. */
- if (FILE_SYSTEM_PREFIX_LEN (base))
- {
- char *p = xmalloc (length + 3);
- p[0] = '.';
- p[1] = '/';
- memcpy (p + 2, base, length);
- p[length + 2] = '\0';
- return p;
- }
-
- /* Finally, copy the basename. */
- return xstrndup (base, length);
-}
-
-/* Return the length of the basename NAME. Typically NAME is the
- value returned by base_name or last_component. Act like strlen
- (NAME), except omit all trailing slashes. */
-
-size_t
-base_len (char const *name)
-{
- size_t len;
- size_t prefix_len = FILE_SYSTEM_PREFIX_LEN (name);
-
- for (len = strlen (name); 1 < len && ISSLASH (name[len - 1]); len--)
- continue;
-
- if (DOUBLE_SLASH_IS_DISTINCT_ROOT && len == 1
- && ISSLASH (name[0]) && ISSLASH (name[1]) && ! name[2])
- return 2;
-
- if (FILE_SYSTEM_DRIVE_PREFIX_CAN_BE_RELATIVE && prefix_len
- && len == prefix_len && ISSLASH (name[prefix_len]))
- return prefix_len + 1;
-
- return len;
-}