ExpressionParser.OperatorHelper.IsComparisonOperator C# (CSharp) Method

        public static bool IsComparisonOperator(string currentOp)
        {
            int nPos = Array.IndexOf(m_AllComparisonOps, currentOp);
            if (nPos != -1)
                return true;
            else
                return false;
        }
        public static bool IsLogicalOperator(string currentOp)

        /// <summary>
        /// Factory method to create Operator objects.
        /// </summary>
        /// <param name="szOperator"></param>
        /// <returns></returns>
        static public IOperator CreateOperator(string szOperator)
        {
            IOperator oprtr = null;

            if (OperatorHelper.IsArithmeticOperator(szOperator))
            {
                oprtr = new ArithmeticOperator(szOperator);
                return(oprtr);
            }
            if (OperatorHelper.IsComparisonOperator(szOperator))
            {
                oprtr = new ComparisonOperator(szOperator);
                return(oprtr);
            }
            if (OperatorHelper.IsLogicalOperator(szOperator))
            {
                oprtr = new LogicalOperator(szOperator);
                return(oprtr);
            }
            throw new RPN_Exception("Unhandled Operator : " + szOperator);
        }