1 /* Libiberty basename. Like basename, but is not overridden by the
2 system C library.
3 Copyright (C) 2001, 2002 Free Software Foundation, Inc.
4
5 This file is part of the libiberty library.
6 Libiberty is free software; you can redistribute it and/or
7 modify it under the terms of the GNU Library General Public
8 License as published by the Free Software Foundation; either
9 version 2 of the License, or (at your option) any later version.
10
11 Libiberty is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Library General Public License for more details.
15
16 You should have received a copy of the GNU Library General Public
17 License along with libiberty; see the file COPYING.LIB. If
18 not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
19 Boston, MA 02111-1307, USA. */
20
21 /*
22
23 @deftypefn Replacement {const char*} lbasename (const char *@var{name})
24
25 Given a pointer to a string containing a typical pathname
26 (@samp{/usr/src/cmd/ls/ls.c} for example), returns a pointer to the
27 last component of the pathname (@samp{ls.c} in this case). The
28 returned pointer is guaranteed to lie within the original
29 string. This latter fact is not true of many vendor C
30 libraries, which return special strings or modify the passed
31 strings for particular input.
32
33 In particular, the empty string returns the same empty string,
34 and a path ending in @code{/} returns the empty string after it.
35
36 @end deftypefn
37
38 */
39
40 #include "ansidecl.h"
41 #include "libiberty.h"
42 #include "safe-ctype.h"
43 #include "filenames.h"
44
45 const char *
lbasename(name)46 lbasename (name)
47 const char *name;
48 {
49 const char *base;
50
51 #if defined (HAVE_DOS_BASED_FILE_SYSTEM)
52 /* Skip over a possible disk name. */
53 if (ISALPHA (name[0]) && name[1] == ':')
54 name += 2;
55 #endif
56
57 for (base = name; *name; name++)
58 if (IS_DIR_SEPARATOR (*name))
59 base = name + 1;
60
61 return base;
62 }
63