examples/org.eclipse.epsilon.examples.egl.flowchart/templates/formatted/util.eol

operation String clean() {
	var clean;
	var badChars = Sequence{'?','\\', '/'};
	for (c in self.toCharSequence()) {
		if (badChars.exists(i|i=c)) {
			clean = clean + '_';
		}	
		else {
			clean = clean + c;
		}
	}
	return clean;
}