-#include <pbd/whitespace.h>
+/*
+ Copyright (C) 2000-2007 Paul Davis
+
+ 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 "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;
+ string::size_type s = 0;
len = str.length();
+
+ if (len == 1) {
+ return;
+ }
+
+ /* strip front */
for (i = 0; i < len; ++i) {
- if (isgraph (str[i])) {
+ if (!isspace (str[i])) {
break;
}
}
- s = i;
-
- for (i = len - 1; i >= 0; --i) {
- if (isgraph (str[i])) {
- break;
- }
+ if (i == len) {
+ /* it's all whitespace, not much we can do */
+ str = "";
+ return;
}
- str = str.substr (s, (i - s) + 1);
+ /* 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