/*
* (non-Javadoc)
*
* @see rationals.transformations.UnaryTransformation#transform(rationals.Automaton)
*/
public Automaton transform(Automaton a) {
Automaton b = new Automaton();
Map qm = new HashMap();
for (Iterator i = a.states().iterator(); i.hasNext(); ) {
State q = (State) i.next();
State p = b.addState(q.isInitial(), q.isTerminal());
qm.put(q, p);
}
Set alph = new HashSet();
for (Iterator it = a.states().iterator(); it.hasNext(); ) {
State q = (State) it.next();
alph.addAll(alphabet);
for (Iterator i2 = a.delta(q).iterator(); i2.hasNext(); ) {
Transition tr = (Transition) i2.next();
try {
b.addTransition(
new Transition((State) qm.get(tr.start()), tr.label(), (State) qm.get(tr.end())));
} catch (NoSuchStateException e) {
}
alph.remove(tr.label());
}
for (Iterator i2 = alph.iterator(); i2.hasNext(); ) {
try {
b.addTransition(new Transition(q, i2.next(), q));
} catch (NoSuchStateException e) {
}
}
alph.clear();
}
return b;
}
/** @param s */
private void assertNoEpsilon(Set s) {
for (Iterator i = s.iterator(); i.hasNext(); ) {
Transition tr = (Transition) i.next();
assertTrue("Transition " + tr + " labelled with epsilon", tr.label() != null);
}
}