source: trunk/libs/newlib/src/include/filenames.h @ 689

Last change on this file since 689 was 444, checked in by satin@…, 6 years ago

add newlib,libalmos-mkh, restructure shared_syscalls.h and mini-libc

File size: 3.4 KB
Line 
1/* Macros for taking apart, interpreting and processing file names.
2
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.
7
8   Copyright (C) 2000-2015 Free Software Foundation, Inc.
9
10This file is part of BFD, the Binary File Descriptor library.
11
12This program is free software; you can redistribute it and/or modify
13it under the terms of the GNU General Public License as published by
14the Free Software Foundation; either version 2 of the License, or
15(at your option) any later version.
16
17This program is distributed in the hope that it will be useful,
18but WITHOUT ANY WARRANTY; without even the implied warranty of
19MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
20GNU General Public License for more details.
21
22You should have received a copy of the GNU General Public License
23along with this program; if not, write to the Free Software
24Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.  */
25
26#ifndef FILENAMES_H
27#define FILENAMES_H
28
29#include "hashtab.h" /* for hashval_t */
30
31#ifdef __cplusplus
32extern "C" {
33#endif
34
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
38#  endif
39#  ifndef HAVE_CASE_INSENSITIVE_FILE_SYSTEM
40#    define HAVE_CASE_INSENSITIVE_FILE_SYSTEM 1
41#  endif
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
49#    endif
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)
54#endif
55
56#define IS_DIR_SEPARATOR_1(dos_based, c)                                \
57  (((c) == '/')                                                         \
58   || (((c) == '\\') && (dos_based)))
59
60#define HAS_DRIVE_SPEC_1(dos_based, f)                  \
61  ((f)[0] && ((f)[1] == ':') && (dos_based))
62
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)
66
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)
70
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)
73
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
78   name like d:foo.  */
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))
82
83extern int filename_cmp (const char *s1, const char *s2);
84#define FILENAME_CMP(s1, s2)    filename_cmp(s1, s2)
85
86extern int filename_ncmp (const char *s1, const char *s2,
87                          size_t n);
88
89extern hashval_t filename_hash (const void *s);
90
91extern int filename_eq (const void *s1, const void *s2);
92
93extern int canonical_filename_eq (const char *a, const char *b);
94
95#ifdef __cplusplus
96}
97#endif
98
99#endif /* FILENAMES_H */
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