1 | /* Basic filename support macros. |
2 | Copyright (C) 2001-2004, 2007-2019 Free Software Foundation, Inc. |
3 | |
4 | This program is free software: you can redistribute it and/or modify |
5 | it under the terms of the GNU General Public License as published by |
6 | the Free Software Foundation; either version 3 of the License, or |
7 | (at your option) any later version. |
8 | |
9 | This program is distributed in the hope that it will be useful, |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
12 | GNU General Public License for more details. |
13 | |
14 | You should have received a copy of the GNU General Public License |
15 | along with this program. If not, see <https://www.gnu.org/licenses/>. */ |
16 | |
17 | #ifndef _FILENAME_H |
18 | #define _FILENAME_H |
19 | |
20 | #ifdef __cplusplus |
21 | extern "C" { |
22 | #endif |
23 | |
24 | |
25 | /* Pathname support. |
26 | ISSLASH(C) tests whether C is a directory separator character. |
27 | IS_ABSOLUTE_PATH(P) tests whether P is an absolute path. If it is not, |
28 | it may be concatenated to a directory pathname. |
29 | IS_PATH_WITH_DIR(P) tests whether P contains a directory specification. |
30 | */ |
31 | #if defined _WIN32 || defined __CYGWIN__ || defined __EMX__ || defined __DJGPP__ |
32 | /* Native Windows, Cygwin, OS/2, DOS */ |
33 | # define ISSLASH(C) ((C) == '/' || (C) == '\\') |
34 | # define HAS_DEVICE(P) \ |
35 | ((((P)[0] >= 'A' && (P)[0] <= 'Z') || ((P)[0] >= 'a' && (P)[0] <= 'z')) \ |
36 | && (P)[1] == ':') |
37 | # define IS_ABSOLUTE_PATH(P) (ISSLASH ((P)[0]) || HAS_DEVICE (P)) |
38 | # define IS_PATH_WITH_DIR(P) \ |
39 | (strchr (P, '/') != NULL || strchr (P, '\\') != NULL || HAS_DEVICE (P)) |
40 | # define FILE_SYSTEM_PREFIX_LEN(P) (HAS_DEVICE (P) ? 2 : 0) |
41 | #else |
42 | /* Unix */ |
43 | # define ISSLASH(C) ((C) == '/') |
44 | # define IS_ABSOLUTE_PATH(P) ISSLASH ((P)[0]) |
45 | # define IS_PATH_WITH_DIR(P) (strchr (P, '/') != NULL) |
46 | # define FILE_SYSTEM_PREFIX_LEN(P) 0 |
47 | #endif |
48 | |
49 | |
50 | #ifdef __cplusplus |
51 | } |
52 | #endif |
53 | |
54 | #endif /* _FILENAME_H */ |
55 | |