public Automata <String> inverseAutomata(Automata <String> automaton)
{
Automata <String> invertedAutomaton = new Automata <string>(automaton.getAlphabet());
foreach (String state in automaton.getFinalStates())
{
invertedAutomaton.defineAsStartState(state);
}
foreach (Transition <String> transition in automaton.getTransitions())
{
invertedAutomaton.addTransition(transition);
}
foreach (String state in automaton.getStates())
{
if (!automaton.getFinalStates().Contains(state))
{
invertedAutomaton.defineAsFinalState(state);
}
}
foreach (String state in automaton.getFinalStates())
{
if (state != invertedAutomaton.getStartStates().First())
{
invertedAutomaton.addTransition(new Transition <string>(invertedAutomaton.getStartStates().First(), state));
}
}
return(invertedAutomaton);
}
public Automata <String> renameStates(Automata <String> automaton)
{
Automata <String> renamedAutomaton = new Automata <string>(automaton.getAlphabet());
Dictionary <String, String> referencer = new Dictionary <string, string>();
int counter = 0;
foreach (String state in automaton.getStates())
{
referencer.Add(state, "q" + counter++);
Console.WriteLine("q" + counter);
}
if (automaton.getStates().Contains("Ø"))
{
referencer["Ø"] = "Ø";
}
foreach (Transition <String> transition in automaton.getTransitions())
{
renamedAutomaton.addTransition(new Transition <string>(referencer[transition.getFromState()], transition.getSymbol(), referencer[transition.getToState()]));
}
foreach (String state in automaton.getFinalStates())
{
renamedAutomaton.defineAsFinalState(referencer[state]);
}
foreach (String state in automaton.getStartStates())
{
renamedAutomaton.defineAsStartState(referencer[state]);
}
return(renamedAutomaton);
}
//For a single state
public SortedSet <String> findStartState(Automata <String> Automata)
{
SortedSet <String> foundStates = new SortedSet <String>();
foreach (var start in Automata.getStartStates())
{
foundStates.Add(start);
foreach (var item in Automata.getToStates(start, '$'))
{
if (!foundStates.Contains(item))
{
foundStates.Add(item);
}
}
}
return(foundStates);
}
// public Automata<String> reverseAutomata(Automata<String> automaton)
// {
// Automata<String> reversedAutomaton = new Automata<String>(automaton.getAlphabet());
//
// foreach (Transition<String> transition in automaton.getTransitions())
// {
// transition.reverseFromToState();
// reversedAutomaton.addTransition(transition);
// }
//
// foreach (String state in automaton.getStartStates()) {
// reversedAutomaton.defineAsStartState(state);
// }
//
// foreach (String state in automaton.getFinalStates()) {
// reversedAutomaton.defineAsFinalState(state);
// }
// reversedAutomaton.printTransitions();
//
// reversedAutomaton = inverseAutomata(reversedAutomaton);
//
// reversedAutomaton.printTransitions();
// return reversedAutomaton;
// }
public Automata <String> reverseAutomata(Automata <String> automaton)
{
Automata <String> reversedAutomaton = new Automata <string>(automaton.getAlphabet());
foreach (Transition <String> transition in automaton.getTransitions())
{
reversedAutomaton.addTransition(new Transition <String> (transition.getToState(), transition.getSymbol(), transition.getFromState()));
}
foreach (String state in automaton.getFinalStates())
{
reversedAutomaton.defineAsStartState(state);
}
foreach (String state in automaton.getStartStates())
{
reversedAutomaton.defineAsFinalState(state);
}
return(reversedAutomaton);
}
