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 2000, 2001, 2007, 2010 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/* 48# ifndef HAVE_CASE_INSENSITIVE_FILE_SYSTEM 49# define HAVE_CASE_INSENSITIVE_FILE_SYSTEM 1 50# endif 51*/ 52# endif /* __APPLE__ */ 53# define HAS_DRIVE_SPEC(f) (0) 54# define IS_DIR_SEPARATOR(c) IS_UNIX_DIR_SEPARATOR (c) 55# define IS_ABSOLUTE_PATH(f) IS_UNIX_ABSOLUTE_PATH (f) 56#endif 57 58#define IS_DIR_SEPARATOR_1(dos_based, c) \ 59 (((c) == '/') \ 60 || (((c) == '\\') && (dos_based))) 61 62#define HAS_DRIVE_SPEC_1(dos_based, f) \ 63 ((f)[0] && ((f)[1] == ':') && (dos_based)) 64 65/* Remove the drive spec from F, assuming HAS_DRIVE_SPEC (f). 66 The result is a pointer to the remainder of F. */ 67#define STRIP_DRIVE_SPEC(f) ((f) + 2) 68 69#define IS_DOS_DIR_SEPARATOR(c) IS_DIR_SEPARATOR_1 (1, c) 70#define IS_DOS_ABSOLUTE_PATH(f) IS_ABSOLUTE_PATH_1 (1, f) 71#define HAS_DOS_DRIVE_SPEC(f) HAS_DRIVE_SPEC_1 (1, f) 72 73#define IS_UNIX_DIR_SEPARATOR(c) IS_DIR_SEPARATOR_1 (0, c) 74#define IS_UNIX_ABSOLUTE_PATH(f) IS_ABSOLUTE_PATH_1 (0, f) 75 76/* Note that when DOS_BASED is true, IS_ABSOLUTE_PATH accepts d:foo as 77 well, although it is only semi-absolute. This is because the users 78 of IS_ABSOLUTE_PATH want to know whether to prepend the current 79 working directory to a file name, which should not be done with a 80 name like d:foo. */ 81#define IS_ABSOLUTE_PATH_1(dos_based, f) \ 82 (IS_DIR_SEPARATOR_1 (dos_based, (f)[0]) \ 83 || HAS_DRIVE_SPEC_1 (dos_based, f)) 84 85extern int filename_cmp (const char *s1, const char *s2); 86#define FILENAME_CMP(s1, s2) filename_cmp(s1, s2) 87 88extern int filename_ncmp (const char *s1, const char *s2, 89 size_t n); 90 91extern hashval_t filename_hash (const void *s); 92 93extern int filename_eq (const void *s1, const void *s2); 94 95extern int canonical_filename_eq (const char *a, const char *b); 96 97#ifdef __cplusplus 98} 99#endif 100 101#endif /* FILENAMES_H */ 102