1 /* Macros for taking apart, interpreting and processing file names.
3 These are here because some non-Posix (a.k.a. DOSish) systems have
4 drive letter brain-damage at the beginning of an absolute file name,
5 use forward- and back-slash in path names interchangeably, and
6 some of them have case-insensitive file names.
8 Copyright (C) 2000-2018 Free Software Foundation, Inc.
10 This file is part of BFD, the Binary File Descriptor library.
12 This program is free software; you can redistribute it and/or modify
13 it under the terms of the GNU General Public License as published by
14 the Free Software Foundation; either version 2 of the License, or
15 (at your option) any later version.
17 This program is distributed in the hope that it will be useful,
18 but WITHOUT ANY WARRANTY; without even the implied warranty of
19 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 GNU General Public License for more details.
22 You should have received a copy of the GNU General Public License
23 along with this program; if not, write to the Free Software
24 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
29 #include "hashtab.h" /* for hashval_t */
35 #if defined(__MSDOS__) || defined(_WIN32) || defined(__OS2__) || defined (__CYGWIN__)
36 # ifndef HAVE_DOS_BASED_FILE_SYSTEM
37 # define HAVE_DOS_BASED_FILE_SYSTEM 1
39 # ifndef HAVE_CASE_INSENSITIVE_FILE_SYSTEM
40 # define HAVE_CASE_INSENSITIVE_FILE_SYSTEM 1
42 # define HAS_DRIVE_SPEC(f) HAS_DOS_DRIVE_SPEC (f)
43 # define IS_DIR_SEPARATOR(c) IS_DOS_DIR_SEPARATOR (c)
44 # define IS_ABSOLUTE_PATH(f) IS_DOS_ABSOLUTE_PATH (f)
45 #else /* not DOSish */
46 # if defined(__APPLE__)
47 # ifndef HAVE_CASE_INSENSITIVE_FILE_SYSTEM
48 # define HAVE_CASE_INSENSITIVE_FILE_SYSTEM 1
50 # endif /* __APPLE__ */
51 # define HAS_DRIVE_SPEC(f) (0)
52 # define IS_DIR_SEPARATOR(c) IS_UNIX_DIR_SEPARATOR (c)
53 # define IS_ABSOLUTE_PATH(f) IS_UNIX_ABSOLUTE_PATH (f)
56 #define IS_DIR_SEPARATOR_1(dos_based, c) \
58 || (((c) == '\\') && (dos_based)))
60 #define HAS_DRIVE_SPEC_1(dos_based, f) \
61 ((f)[0] && ((f)[1] == ':') && (dos_based))
63 /* Remove the drive spec from F, assuming HAS_DRIVE_SPEC (f).
64 The result is a pointer to the remainder of F. */
65 #define STRIP_DRIVE_SPEC(f) ((f) + 2)
67 #define IS_DOS_DIR_SEPARATOR(c) IS_DIR_SEPARATOR_1 (1, c)
68 #define IS_DOS_ABSOLUTE_PATH(f) IS_ABSOLUTE_PATH_1 (1, f)
69 #define HAS_DOS_DRIVE_SPEC(f) HAS_DRIVE_SPEC_1 (1, f)
71 #define IS_UNIX_DIR_SEPARATOR(c) IS_DIR_SEPARATOR_1 (0, c)
72 #define IS_UNIX_ABSOLUTE_PATH(f) IS_ABSOLUTE_PATH_1 (0, f)
74 /* Note that when DOS_BASED is true, IS_ABSOLUTE_PATH accepts d:foo as
75 well, although it is only semi-absolute. This is because the users
76 of IS_ABSOLUTE_PATH want to know whether to prepend the current
77 working directory to a file name, which should not be done with a
79 #define IS_ABSOLUTE_PATH_1(dos_based, f) \
80 (IS_DIR_SEPARATOR_1 (dos_based, (f)[0]) \
81 || HAS_DRIVE_SPEC_1 (dos_based, f))
83 extern int filename_cmp (const char *s1
, const char *s2
);
84 #define FILENAME_CMP(s1, s2) filename_cmp(s1, s2)
86 extern int filename_ncmp (const char *s1
, const char *s2
,
89 extern hashval_t
filename_hash (const void *s
);
91 extern int filename_eq (const void *s1
, const void *s2
);
93 extern int canonical_filename_eq (const char *a
, const char *b
);
99 #endif /* FILENAMES_H */
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