Implemented reverse function
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@@ -65,4 +65,24 @@ public class DFA<T extends Comparable> extends Automata<T> {
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}
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return new Taal(addSymbols(n - 1, taal));
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}
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public DFA<T> Reverse()
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{
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DFA<T> reversed = new DFA<T>(this.symbols);
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for(Transition<T> t : transistions)
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{
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reversed.addTransition(new Transition<T>(t.naarState, t.symbol, t.vanState));
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}
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for(T state : eindStates) {
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reversed.defineAsEndState(state);
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}
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for(T state : beginStates) {
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reversed.defineAsStartState(state);
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}
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return reversed;
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}
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}
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@@ -41,6 +41,7 @@ public class Main {
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myAutomata.defineAsEndState("q7");
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myAutomata.printTransitions();
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final long[] startTime = {System.currentTimeMillis()};
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myAutomata.geefTaalTotLengte(10).getSymbols().forEach((s) -> {
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long before = System.currentTimeMillis();
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@@ -110,13 +111,35 @@ public class Main {
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RegExp expr7 = expr5.punt(expr6);
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RegExp expr8 = expr7.ster();
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NDFA<String> test = ThompsonConverter.Convert(expr8);
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NDFA<String> test = ThompsonConverter.Convert(expr7);
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System.out.println(Graph.generateGraphString(test));
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}
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public static void ReverseAutomata()
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{
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Character [] characters = {'a', 'b'};
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DFA<String> myAutomata = new DFA<String>(characters);
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// AAB
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myAutomata.addTransition(new Transition<String>("q0", 'a', "q1"));
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//myAutomata.addTransition(new Transition<String>("q0", 'b', "q1"));
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//myAutomata.addTransition(new Transition<String>("q1", 'a', "q0"));
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myAutomata.addTransition(new Transition<String>("q1", 'b', "q0"));
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myAutomata.defineAsEndState("q1");
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myAutomata.defineAsStartState("q0");
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System.out.println(Graph.generateGraphString(myAutomata));
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System.out.println("\nREVERSE:");
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DFA<String> reverseAutomata = myAutomata.Reverse();
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System.out.println(Graph.generateGraphString(reverseAutomata));
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}
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public static void Practicum4() {
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Character [] characters = {'a', 'b'};
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NDFA<String> myAutomata = new NDFA<String>(characters);
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@@ -155,6 +178,8 @@ public class Main {
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// Practicum2();
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Practicum4();
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// Practicum4();
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ReverseAutomata();
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}
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}
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