55 lines
1.9 KiB
C
55 lines
1.9 KiB
C
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/* Basic filename support macros.
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Copyright (C) 2001-2004, 2007-2020 Free Software Foundation, Inc.
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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 3 of the License, or
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(at your option) any later version.
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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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You should have received a copy of the GNU General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>. */
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#ifndef _FILENAME_H
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#define _FILENAME_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* Pathname support.
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ISSLASH(C) tests whether C is a directory separator character.
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IS_ABSOLUTE_PATH(P) tests whether P is an absolute path. If it is not,
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it may be concatenated to a directory pathname.
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IS_PATH_WITH_DIR(P) tests whether P contains a directory specification.
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*/
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#if defined _WIN32 || defined __CYGWIN__ || defined __EMX__ || defined __DJGPP__
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/* Native Windows, Cygwin, OS/2, DOS */
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# define ISSLASH(C) ((C) == '/' || (C) == '\\')
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# define HAS_DEVICE(P) \
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((((P)[0] >= 'A' && (P)[0] <= 'Z') || ((P)[0] >= 'a' && (P)[0] <= 'z')) \
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&& (P)[1] == ':')
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# define IS_ABSOLUTE_PATH(P) (ISSLASH ((P)[0]) || HAS_DEVICE (P))
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# define IS_PATH_WITH_DIR(P) \
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(strchr (P, '/') != NULL || strchr (P, '\\') != NULL || HAS_DEVICE (P))
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# define FILE_SYSTEM_PREFIX_LEN(P) (HAS_DEVICE (P) ? 2 : 0)
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#else
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/* Unix */
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# define ISSLASH(C) ((C) == '/')
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# define IS_ABSOLUTE_PATH(P) ISSLASH ((P)[0])
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# define IS_PATH_WITH_DIR(P) (strchr (P, '/') != NULL)
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# define FILE_SYSTEM_PREFIX_LEN(P) 0
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#endif
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#ifdef __cplusplus
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}
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#endif
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#endif /* _FILENAME_H */
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