1*a939078aSHiroo HAYASHI /* Test whether a character is a blank.
2*a939078aSHiroo HAYASHI
3*a939078aSHiroo HAYASHI Copyright (C) 2009-2021 Free Software Foundation, Inc.
4*a939078aSHiroo HAYASHI
5*a939078aSHiroo HAYASHI This file is free software: you can redistribute it and/or modify
6*a939078aSHiroo HAYASHI it under the terms of the GNU Lesser General Public License as
7*a939078aSHiroo HAYASHI published by the Free Software Foundation; either version 2.1 of the
8*a939078aSHiroo HAYASHI License, or (at your option) any later version.
9*a939078aSHiroo HAYASHI
10*a939078aSHiroo HAYASHI This file is distributed in the hope that it will be useful,
11*a939078aSHiroo HAYASHI but WITHOUT ANY WARRANTY; without even the implied warranty of
12*a939078aSHiroo HAYASHI MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13*a939078aSHiroo HAYASHI GNU Lesser General Public License for more details.
14*a939078aSHiroo HAYASHI
15*a939078aSHiroo HAYASHI You should have received a copy of the GNU Lesser General Public License
16*a939078aSHiroo HAYASHI along with this program. If not, see <https://www.gnu.org/licenses/>. */
17*a939078aSHiroo HAYASHI
18*a939078aSHiroo HAYASHI #include <config.h>
19*a939078aSHiroo HAYASHI
20*a939078aSHiroo HAYASHI /* Specification. */
21*a939078aSHiroo HAYASHI #include <ctype.h>
22*a939078aSHiroo HAYASHI
23*a939078aSHiroo HAYASHI int
isblank(int c)24*a939078aSHiroo HAYASHI isblank (int c)
25*a939078aSHiroo HAYASHI {
26*a939078aSHiroo HAYASHI /* On all known platforms, in all predefined locales, isblank(c) is likely
27*a939078aSHiroo HAYASHI equivalent with (c == ' ' || c == '\t'). Look at the glibc definition
28*a939078aSHiroo HAYASHI (in glibc/localedata/locales/i18n): The "blank" characters are '\t', ' ',
29*a939078aSHiroo HAYASHI U+1680, U+180E, U+2000..U+2006, U+2008..U+200A, U+205F, U+3000, and none
30*a939078aSHiroo HAYASHI except the first two is present in a common 8-bit encoding. Therefore
31*a939078aSHiroo HAYASHI the substitute for other platforms is not more complicated than this. */
32*a939078aSHiroo HAYASHI return (c == ' ' || c == '\t');
33*a939078aSHiroo HAYASHI }
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