02.Replace<a>Tag

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading.Tasks;

namespace ReplaceATag
{
    class ReplaceATag
    {
        static void Main()
        {
            string text = Console.ReadLine();
            string pattern = @"(?<tag><a href=(?<link>http:\/\/\w+.\w+)>(?<text>\w+)<\/a>)";
            Match match = Regex.Match(text,pattern);
            string replace = "[URL href=" + match.Groups[2] + "]" + match.Groups[3] + "[/URL]";
            string result = Regex.Replace(text, pattern, replace);
            string quotes = @"""";
            result = Regex.Replace(result, quotes, "");
            Console.WriteLine(result);
        }
    }
}