// C# Extension Method

// Doc: https://csharp-extension.com/en/method/1002167/string-match

​

// @nuget: Z.ExtensionMethods

​

using System;

using System.Text.RegularExpressions;

​

public class Program

{

    public static void Main()

    {

        string pattern = @"(\w+)\s+(car)";

        string input = "One car red car blue car";

        // C# Extension Method: String - Match

        Match m = input.Match(pattern);

        if (m.Success)

        {

            Console.WriteLine("Found '{0}' at position {1}.", m.Value, m.Index);

        }

    }

}