annotate lib/dosname.h @ 17160:72f4bab621be

fts: introduce FTS_VERBATIM This gives clients the option to disable stripping of trailing slashes from input path names during fts_open initialization. The recent change v0.0-7611-g3a9002d that made fts_open strip trailing slashes from input path names had a negative impact on findutils that relies on the old fts_open behavior to implement POSIX requirement that each path operand of the find utility shall be evaluated unaltered as it was provided, including all trailing slash characters. * lib/fts_.h (FTS_VERBATIM): New bit flag. (FTS_OPTIONMASK, FTS_NAMEONLY, FTS_STOP): Adjust. * lib/fts.c (fts_open): Honor it.
author Dmitry V. Levin <ldv@altlinux.org>
date Sun, 18 Nov 2012 04:40:18 +0400
parents 8250f2777afc
children e542fd46ad6f
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1 /* File names on MS-DOS/Windows systems.
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2
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3 Copyright (C) 2000-2001, 2004-2006, 2009-2012 Free Software Foundation, Inc.
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5 This program is free software: you can redistribute it and/or modify
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6 it under the terms of the GNU General Public License as published by
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7 the Free Software Foundation; either version 3 of the License, or
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8 (at your option) any later version.
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9
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10 This program is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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13 GNU General Public License for more details.
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14
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15 You should have received a copy of the GNU General Public License
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16 along with this program. If not, see <http://www.gnu.org/licenses/>.
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18 From Paul Eggert and Jim Meyering. */
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19
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20 #ifndef _DOSNAME_H
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21 #define _DOSNAME_H
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23 #if (defined _WIN32 || defined __WIN32__ || \
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24 defined __MSDOS__ || defined __CYGWIN__ || \
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25 defined __EMX__ || defined __DJGPP__)
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26 /* This internal macro assumes ASCII, but all hosts that support drive
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27 letters use ASCII. */
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28 # define _IS_DRIVE_LETTER(C) (((unsigned int) (C) | ('a' - 'A')) - 'a' \
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29 <= 'z' - 'a')
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30 # define FILE_SYSTEM_PREFIX_LEN(Filename) \
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31 (_IS_DRIVE_LETTER ((Filename)[0]) && (Filename)[1] == ':' ? 2 : 0)
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32 # ifndef __CYGWIN__
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33 # define FILE_SYSTEM_DRIVE_PREFIX_CAN_BE_RELATIVE 1
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34 # endif
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35 # define ISSLASH(C) ((C) == '/' || (C) == '\\')
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36 #else
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37 # define FILE_SYSTEM_PREFIX_LEN(Filename) 0
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38 # define ISSLASH(C) ((C) == '/')
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39 #endif
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40
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41 #ifndef FILE_SYSTEM_DRIVE_PREFIX_CAN_BE_RELATIVE
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42 # define FILE_SYSTEM_DRIVE_PREFIX_CAN_BE_RELATIVE 0
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43 #endif
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45 #if FILE_SYSTEM_DRIVE_PREFIX_CAN_BE_RELATIVE
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46 # define IS_ABSOLUTE_FILE_NAME(F) ISSLASH ((F)[FILE_SYSTEM_PREFIX_LEN (F)])
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47 # else
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48 # define IS_ABSOLUTE_FILE_NAME(F) \
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49 (ISSLASH ((F)[0]) || FILE_SYSTEM_PREFIX_LEN (F) != 0)
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50 #endif
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51 #define IS_RELATIVE_FILE_NAME(F) (! IS_ABSOLUTE_FILE_NAME (F))
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52
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53 #endif /* DOSNAME_H_ */