Utility function to collapse whitespace runs to single spaces and strip leading/trailing whitespace.
Source
String collapseWhitespace(String string) {
var result = new StringBuffer();
var skipSpace = true;
for (var i = 0; i < string.length; i++) {
var character = string[i];
if (_isWhitespace(character)) {
if (!skipSpace) {
result.write(' ');
skipSpace = true;
}
} else {
result.write(character);
skipSpace = false;
}
}
return result.toString().trim();
}