コード例 #1
0
ファイル: Nth.cs プロジェクト: Lipsis/Lipsis
        public bool AppliesTo(MarkupElement originalElement, MarkupElement pipeElement)
        {
            //get the index of the element
            int index = pipeElement.Index;

            //odd/even?
            if (p_Odd) { return index % 2 != 0; }
            if (p_Even) { return index % 2 == 0; }

            //substitute for n?
            if (!p_HasNSubstitute) {
                //index has to match the result of the calculation
                return index == p_ExpressionResult;
            }

            //use the n substitute as an accumulator and
            //see if the result of the expression
            //matches the elements index.
            ArithmeticSubstitute n = new ArithmeticSubstitute(
                new ArithmeticOperand(0),
                'n');
            LinkedList<ArithmeticSubstitute> subs = new LinkedList<ArithmeticSubstitute>();
            subs.AddLast(n);
            for (int c = 0; c <= index; c++) {
                n.Operand.setValue(c, false, true);

                ArithmeticNumeric res = p_Expression.Calculate(subs);
                if (res == index) { return true; }
            }

            //no match
            return false;
        }
コード例 #2
0
ファイル: Queue.cs プロジェクト: Lipsis/Lipsis
        private bool substituteExist(char name, LinkedList<ArithmeticSubstitute> subs, out ArithmeticSubstitute found)
        {
            found = default(ArithmeticSubstitute);

            //look for the name
            IEnumerator<ArithmeticSubstitute> e = subs.GetEnumerator();
            while (e.MoveNext()) {
                ArithmeticSubstitute current = e.Current;
                if (current.Name == name) {
                    e.Dispose();
                    found = current;
                    return true;
                }
            }

            //not found
            e.Dispose();
            return false;
        }