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