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annotate lib/isblank.c @ 17160:72f4bab621be

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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
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /* Test whether a character is a blank.
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2
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8250f2777afc maint: update all copyright year number ranges
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3 Copyright (C) 2009-2012 Free Software Foundation, Inc.
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4
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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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17
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18 #include <config.h>
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19
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20 /* Specification. */
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21 #include <ctype.h>
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22
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23 int
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24 isblank (int c)
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25 {
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26 /* On all known platforms, in all predefined locales, isblank(c) is likely
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27 equivalent with (c == ' ' || c == '\t'). Look at the glibc definition
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28 (in glibc/localedata/locales/i18n): The "blank" characters are '\t', ' ',
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29 U+1680, U+180E, U+2000..U+2006, U+2008..U+200A, U+205F, U+3000, and none
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30 except the first two is present in a common 8-bit encoding. Therefore
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31 the substitute for other platforms is not more complicated than this. */
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32 return (c == ' ' || c == '\t');
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33 }