84 lines
2.9 KiB
C
84 lines
2.9 KiB
C
/* Macros for taking apart, interpreting and processing file names.
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*
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* These are here because some non-Posix (a.k.a. DOSish) systems have
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* drive letter brain-damage at the beginning of an absolute file name,
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* use forward- and back-slash in path names interchangeably, and
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* some of them have case-insensitive file names.
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*
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* This was based on filenames.h from BFD, the Binary File Descriptor
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* library, Copyright (C) 2000-2016 Free Software Foundation, Inc.,
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* and changed by O. Sezer <sezero@users.sourceforge.net> for our needs.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef spingle__filenames_h
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#define spingle__filenames_h
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#include <string.h>
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#if PLATFORM_IS(WINDOWS)
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#define HAVE_DOS_BASED_FILE_SYSTEM 1
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#define HAVE_CASE_INSENSITIVE_FILE_SYSTEM 1
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#define HAS_DRIVE_SPEC(f) ((f)[0] && ((f)[1] == ':'))
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#define STRIP_DRIVE_SPEC(f) ((f) + 2)
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#define IS_DIR_SEPARATOR(c) ((c) == '/' || (c) == '\\')
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#define DIR_SEPARATOR_CHAR '\\'
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#define DIR_SEPARATOR_STR "\\"
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/* Note that IS_ABSOLUTE_PATH accepts d:foo as well, although it is
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only semi-absolute. This is because the users of IS_ABSOLUTE_PATH
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want to know whether to prepend the current working directory to
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a file name, which should not be done with a name like d:foo. */
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#define IS_ABSOLUTE_PATH(f) (IS_DIR_SEPARATOR((f)[0]) || HAS_DRIVE_SPEC((f)))
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static inline char *FIND_FIRST_DIRSEP(const char *_the_path)
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{
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char *p1 = strchr(_the_path, '/');
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char *p2 = strchr(_the_path, '\\');
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if(p1 == NULL) return p2;
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if(p2 == NULL) return p1;
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return (p1 < p2) ? p1 : p2;
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}
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static inline char *FIND_LAST_DIRSEP(const char *_the_path)
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{
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char *p1 = strrchr(_the_path, '/');
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char *p2 = strrchr(_the_path, '\\');
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if(p1 == NULL) return p2;
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if(p2 == NULL) return p1;
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return (p1 > p2) ? p1 : p2;
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}
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#else
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#define IS_DIR_SEPARATOR(c) ((c) == '/')
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#define DIR_SEPARATOR_CHAR '/'
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#define DIR_SEPARATOR_STR "/"
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#define IS_ABSOLUTE_PATH(f) (IS_DIR_SEPARATOR((f)[0]))
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#define HAS_DRIVE_SPEC(f) (0)
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#define STRIP_DRIVE_SPEC(f) (f)
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static inline char *FIND_FIRST_DIRSEP(const char *_the_path)
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{
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return strchr(_the_path, '/');
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}
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static inline char *FIND_LAST_DIRSEP(const char *_the_path)
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{
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return strrchr(_the_path, '/');
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}
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#endif
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#endif
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