Ejemplo n.º 1
0
 public void Case3()
 {
     Context test1 = new Context ("q", "a");
     Context test2 = new Context ("", "");
     Assert.IsNotNull (test1, "C03-A");
     Assert.IsNotNull (test2, "C03-B");
 }
Ejemplo n.º 2
0
        public override Hashtable GetDelta()
        {
            ArrayList [] trans = GetDeltaAux ();
            Hashtable hash = new Hashtable ();

            foreach (ArrayList list in trans) {
            Context con = new Context ((string) list[0], (string) list [1]);

            string [] tstates = new string [list.Count - 2];
            list.CopyTo (2, tstates, 0, tstates.Length);

            StringBuilder fstates = new StringBuilder ();

            int count = 1;
            foreach (string state in tstates)
                if (count++ != tstates.Length)
                    fstates.AppendFormat ("{0}:", state);
                else
                    fstates.AppendFormat ("{0}", state);

            hash.Add (con, fstates.ToString ());
            }

            return hash;
        }
Ejemplo n.º 3
0
 public void Case4()
 {
     int code1, code2;
     Context test1 = new Context ("q", "a");
     Context test2 = new Context ("q", "a");
     code1 = test1.GetHashCode ();
     code2 = test2.GetHashCode ();
     Console.WriteLine ("test1 object has HashCode: {0}", code1);
     Console.WriteLine ("test2 object has HashCode: {0}", code2);
     Assert.AreEqual (code1, code2, "C04");
 }
Ejemplo n.º 4
0
 public void Case2()
 {
     Context test1 = new Context ("q", "b");
     Context test2 = new Context ("q", "b");
     Assert.IsTrue (test1 == test2, "C02");
 }
Ejemplo n.º 5
0
 public void Case1()
 {
     Context test1 = new Context ("q", "a");
     Context test2 = new Context ("q", "a");
     Assert.AreEqual (test1, test2, "C01");
 }
Ejemplo n.º 6
0
        public bool DoTransition(char cInput)
        {
            Context con = new Context (current_state, cInput.ToString ());
            current_state = (string) delta[con];

            return (current_state != null);
        }
Ejemplo n.º 7
0
        private void GetDeltaFinal(RegGram gram)
        {
            Hashtable hash = new Hashtable ();
            bool acepta = false;
            string [][] propositions = gram.Propositions;

            foreach (string [] prop in propositions) {
            string left = prop [0];
            string right = prop [1];

            if (right == "epsilon")
                acepta = true;

            if (right.IndexOf (":") == -1) {
                Context con = new Context (left, right);
                if (hash [con] == null) {
                    hash.Add (con, "ZFinal");
                } else {
                    string temp = (string) hash [con];
                    hash.Remove (con);
                    hash.Add (con, temp + ":ZFinal");
                }
            } else {
                string [] sub = right.Split (':');
                string subleft = sub [0];
                string subright = sub [1];
                Context con = new Context (left, subleft);

                if (hash [con] == null) {
                    hash.Add (con, subright);
                } else {
                    string temp = (string) hash [con];
                    hash.Remove (con);
                    hash.Add (con, temp + ":" + subright);
                }
            }
            }

            foreach (string sym in alph) {
            hash.Add (new Context ("ZFinal", sym), "ERROR");
            hash.Add (new Context ("ERROR", sym), "ERROR");
            }

            delta = hash;

            string [] nfstates;
            if (acepta) {
            nfstates = new string [2];
            nfstates [0] = "ZFinal";
            nfstates [1] = gram.ISym;
            } else {
            nfstates = new string [1];
            nfstates [0] = "ZFinal";
            }

            f_states = nfstates;
        }