using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text.RegularExpressions;

public class Test
{
	public static void Main()
	{
		var regex = new Regex(@"^(?P<delim>\.)     # delimiter "."
                        (?P<root>\w+)$    # Root Symbol, at least 1 character
                        )", RegexOptions.IgnorePatternWhitespace);
	}
}