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/*
Copyright (C) 2012-2015 Carl Hetherington <cth@carlh.net>
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 2 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, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "util.h"
using std::string;
/** @param s A string.
* @return true if the string contains only space, newline or tab characters, or is empty.
*/
bool
sub::empty_or_white_space (string s)
{
for (size_t i = 0; i < s.length(); ++i) {
if (s[i] != ' ' && s[i] != '\n' && s[i] != '\t') {
return false;
}
}
return true;
}
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