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/*
* Copyright (C) 2000-2015 Paul Davis <paul@linuxaudiosystems.com>
* Copyright (C) 2006 Taybin Rutkin <taybin@taybin.com>
*
* 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.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "pbd/whitespace.h"
using namespace std;
namespace PBD {
void
strip_whitespace_edges (string& str)
{
string::size_type i;
string::size_type len;
string::size_type s = 0;
len = str.length();
if (len == 1) {
return;
}
/* strip front */
for (i = 0; i < len; ++i) {
if (!isspace (str[i])) {
break;
}
}
if (i == len) {
/* it's all whitespace, not much we can do */
str = "";
return;
}
/* strip back */
if (len > 1) {
s = i;
i = len - 1;
if (s == i) {
return;
}
do {
if (!isspace (str[i]) || i == 0) {
break;
}
--i;
} while (true);
str = str.substr (s, (i - s) + 1);
} else {
str = str.substr (s);
}
}
} // namespace PBD
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