Ejemplo n.º 1
0
        public override Predicate exec( Prolog engine )
        {
            Term a1, a2, a3, a4, a5;
            Predicate p1, p2, p3;
            a1 = engine.aregs[1].Dereference();
            a2 = engine.aregs[2].Dereference();
            a3 = engine.aregs[3].Dereference();
            a4 = engine.aregs[4].Dereference();
            Predicate cont = engine.cont;

            a5 = engine.makeVariable();
            p1 = new Predicates.dollar_fail_0(cont);
            p2 = new Predicates.dollar_cut_1(a5, p1);
            p3 = new Predicates.Free_Close_Line_4(a1, a2, a3, a4, p2);
            return new Predicates.dollar_getLevel_1(a5, p3);
        }
Ejemplo n.º 2
0
        public override Predicate exec( Prolog engine )
        {
            Term a1, a2, a3, a4, a5;
            Predicate p1, p2, p3, p4;
            a1 = engine.aregs[1].Dereference();
            a2 = engine.aregs[2].Dereference();
            a3 = engine.aregs[3].Dereference();
            Predicate cont = engine.cont;

            a4 = engine.makeVariable();
            Term[] h2 = {a1, a2, a3};
            a5 = new StructureTerm(f1, h2);
            p1 = new Predicates.dollar_fail_0(cont);
            p2 = new Predicates.dollar_cut_1(a4, p1);
            p3 = new Predicates.Retract_1(a5, p2);
            p4 = new Predicates.Free_Close_Line_4(engine.makeVariable(), engine.makeVariable(), engine.makeVariable(), engine.makeVariable(), p3);
            return new Predicates.dollar_getLevel_1(a4, p4);
        }
Ejemplo n.º 3
0
        public override Predicate exec( Prolog engine )
        {
            Term a1, a2, a3, a4, a5, a6, a7;
            Predicate p1, p2, p3;
            a1 = engine.aregs[1].Dereference();
            a2 = engine.aregs[2].Dereference();
            a3 = engine.aregs[3].Dereference();
            a4 = engine.aregs[4].Dereference();
            a5 = engine.aregs[5].Dereference();
            Predicate cont = engine.cont;

            if ( !s1.Unify(a3, engine.trail) ) return engine.fail();
            if ( !s2.Unify(a4, engine.trail) ) return engine.fail();
            a6 = engine.makeVariable();
            Term[] h4 = {a1, a2, s1};
            a7 = new StructureTerm(f3, h4);
            p1 = new Predicates.dollar_cut_1(a6, cont);
            p2 = new Predicates.Assert_1(a7, p1);
            p3 = new Predicates.Free_Close_Line_4(a1, a2, s1, a5, p2);
            return new Predicates.dollar_getLevel_1(a6, p3);
        }