using System;
using System.Text.RegularExpressions;
public class Program
{
public static void Main()
var str = "Ğ";
var r1 = new Regex(@"\w");
var r2 = new Regex(@"\w", RegexOptions.ECMAScript);
Console.WriteLine(r1.IsMatch(str));
Console.WriteLine(r2.IsMatch(str));
}