[deliverable/binutils-gdb.git] / gnulib / import / isblank.c

/* Test whether a character is a blank.

   Copyright (C) 2009-2020 Free Software Foundation, Inc.

   This program is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 3 of the License, or
   (at your option) any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */

#include <config.h>

/* Specification.  */
#include <ctype.h>

int
isblank (int c)
{
  /* On all known platforms, in all predefined locales, isblank(c) is likely
     equivalent with  (c == ' ' || c == '\t').  Look at the glibc definition
     (in glibc/localedata/locales/i18n): The "blank" characters are '\t', ' ',
     U+1680, U+180E, U+2000..U+2006, U+2008..U+200A, U+205F, U+3000, and none
     except the first two is present in a common 8-bit encoding.  Therefore
     the substitute for other platforms is not more complicated than this.  */
  return (c == ' ' || c == '\t');
}
Commit	Line	Data
698be2d8 CB	1	/* Test whether a character is a blank.
	2
	3	Copyright (C) 2009-2020 Free Software Foundation, Inc.
	4
	5	This program is free software: you can redistribute it and/or modify
	6	it under the terms of the GNU General Public License as published by
	7	the Free Software Foundation; either version 3 of the License, or
	8	(at your option) any later version.
	9
	10	This program 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 General Public License for more details.
	14
	15	You should have received a copy of the GNU 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	}