1 /* Take file names apart into directory and base names.
3 Copyright (C) 1998, 2001, 2003-2006, 2009-2010 Free Software Foundation,
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 <http://www.gnu.org/licenses/>. */
25 # ifndef DIRECTORY_SEPARATOR
26 # define DIRECTORY_SEPARATOR '/'
30 # define ISSLASH(C) ((C) == DIRECTORY_SEPARATOR)
33 # ifndef FILE_SYSTEM_PREFIX_LEN
34 # if FILE_SYSTEM_ACCEPTS_DRIVE_LETTER_PREFIX
35 /* This internal macro assumes ASCII, but all hosts that support drive
37 # define _IS_DRIVE_LETTER(c) (((unsigned int) (c) | ('a' - 'A')) - 'a' \
39 # define FILE_SYSTEM_PREFIX_LEN(Filename) \
40 (_IS_DRIVE_LETTER ((Filename)[0]) && (Filename)[1] == ':' ? 2 : 0)
42 # define FILE_SYSTEM_PREFIX_LEN(Filename) 0
46 # ifndef FILE_SYSTEM_DRIVE_PREFIX_CAN_BE_RELATIVE
47 # define FILE_SYSTEM_DRIVE_PREFIX_CAN_BE_RELATIVE 0
50 # ifndef DOUBLE_SLASH_IS_DISTINCT_ROOT
51 # define DOUBLE_SLASH_IS_DISTINCT_ROOT 0
54 # if FILE_SYSTEM_DRIVE_PREFIX_CAN_BE_RELATIVE
55 # define IS_ABSOLUTE_FILE_NAME(F) ISSLASH ((F)[FILE_SYSTEM_PREFIX_LEN (F)])
57 # define IS_ABSOLUTE_FILE_NAME(F) \
58 (ISSLASH ((F)[0]) || 0 < FILE_SYSTEM_PREFIX_LEN (F))
60 # define IS_RELATIVE_FILE_NAME(F) (! IS_ABSOLUTE_FILE_NAME (F))
63 char *base_name (char const *file);
64 char *dir_name (char const *file);
67 char *mdir_name (char const *file);
68 size_t base_len (char const *file);
69 size_t dir_len (char const *file);
70 char *last_component (char const *file);
72 bool strip_trailing_slashes (char *file);
74 #endif /* not DIRNAME_H_ */