HTML Ancors to MarkDown

namespace ReplaceTags
{
    using System;
    using System.Text.RegularExpressions;

    class Program
    {
        static void Main(string[] args)
        {
            var pattern = new Regex(
                @"<a\b(?:[^>])*? href=(""|')(?<url>.+?)\1(?:[^>])*?>(?<text>[\W\w]+?)<\/a>",
                RegexOptions.Multiline);

            string text = Console.ReadLine();
            string result = pattern.Replace(text, new MatchEvaluator(ReplacesAncors));

            Console.WriteLine(result);
        }

        static string ReplacesAncors(Match match)
        {
            return string.Format(
                "[{0}]({1})", match.Groups["text"].Value, match.Groups["url"]);
        }
    }
}