public Object invoke(
ModuleInstance module,
Object source,
Object[] args,
QvtOperationalEvaluationEnv evalEnv) {
String self = (String) source;
self = self.trim();
StringBuilder buf = new StringBuilder(self.length());
boolean isWhiteArea = false;
for (int i = 0; i < self.length(); i++) {
char c = self.charAt(i);
if (UCharacter.isWhitespace(c)) {
if (isWhiteArea) {
continue;
}
isWhiteArea = true;
buf.append(c);
} else {
isWhiteArea = false;
buf.append(c);
}
}
return buf.toString();
}
