1 /* basename.c -- return the last element in a file name
3 Copyright (C) 1990, 1998-2001, 2003-2006, 2009-2021 Free Software
6 This program is free software: you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
11 This program 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
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program. If not, see <https://www.gnu.org/licenses/>. */
22 #include "basename-lgpl.h"
30 last_component (char const *name)
32 char const *base = name + FILE_SYSTEM_PREFIX_LEN (name);
34 bool last_was_slash = false;
36 while (ISSLASH (*base))
39 for (p = base; *p; p++)
42 last_was_slash = true;
43 else if (last_was_slash)
46 last_was_slash = false;
54 base_len (char const *name)
57 size_t prefix_len = FILE_SYSTEM_PREFIX_LEN (name);
59 for (len = strlen (name); 1 < len && ISSLASH (name[len - 1]); len--)
62 if (DOUBLE_SLASH_IS_DISTINCT_ROOT && len == 1
63 && ISSLASH (name[0]) && ISSLASH (name[1]) && ! name[2])
66 if (FILE_SYSTEM_DRIVE_PREFIX_CAN_BE_RELATIVE && prefix_len
67 && len == prefix_len && ISSLASH (name[prefix_len]))
68 return prefix_len + 1;