/**********************************************************************************************

* This fiddle is a demo of the library : CodingSeb.ExpressionEvaluator

* See : https://github.com/codingseb/ExpressionEvaluator

* For Others examples : https://dotnetfiddle.net/Packages/41132/CodingSeb_ExpressionEvaluator

**********************************************************************************************/

using System;

using System.Collections.Generic;

using CodingSeb.ExpressionEvaluator;

​

public class XExpressionEvaluator : ExpressionEvaluator

{

    protected override void Init()

    {

        operatorsDictionary.Add("and", ExpressionOperator.ConditionalAnd);

        operatorsDictionary.Add("or", ExpressionOperator.ConditionalOr);

    }

}

​

public class Program

{

    public static void Main()

    {

        ExpressionEvaluator evaluator = new XExpressionEvaluator();

        evaluator.Variables = new Dictionary<string, object>()

        {

            {"x", 1}, 

            {"y", 1}

        };

        List<string> expressions = new List<string>()

        {

            "x == y ? true : false",

            "x = 2", 

            "x == y ? true : false",

            "1==2 or 2==1 ? 100 : 200",

            "1==1 or 2==1 ? 100 : 200",

            "1==2 and 2==1 ? 100 : 200",

            "1==1 and 2==1 ? 100 : 200",

        };

        expressions.ForEach(expression =>

        {

            try

            {

                Console.WriteLine(expression);

                Console.WriteLine(evaluator.Evaluate(expression));

            }

            catch (Exception exception)

            {

                Console.WriteLine(exception);

            }

            finally

            {

                Console.WriteLine(string.Empty);

            }

        });

    }

}