02.8a.08..ParseURLClass

using System;
using System.Reflection.Emit;
using System.Text.RegularExpressions;

class ParseURLClass
{
    static void Main()
    {
        string fileName = @"http://www.devbg.org/forum/index.php ";

        Uri uri = new Uri(fileName);
        Console.WriteLine(uri.AbsoluteUri);
        Console.WriteLine(uri.Scheme);
        Console.WriteLine(uri.Authority);
        Console.WriteLine(uri.PathAndQuery);
        Console.WriteLine();
        Console.WriteLine("//========================");
        Console.WriteLine("//========================");
        Console.WriteLine();
        string url = "http://www.cambiaresearch.com"
           + "/Cambia3/snippets/csharp/regex/uri_regex.aspx?id=17#authority";
        Console.WriteLine(url);
        string regexPattern = @"^(?<s1>(?<s0>[^:/\?#]+):)?(?<a1>"
           + @"//(?<a0>[^/\?#]*))?(?<p0>[^\?#]*)"
           + @"(?<q1>\?(?<q0>[^#]*))?"
           + @"(?<f1>#(?<f0>.*))?";

        Regex re = new Regex(regexPattern, RegexOptions.ExplicitCapture);
        Match m = re.Match(url);

        if (m.Success)
        {
            GroupCollection gr = m.Groups;
            Console.WriteLine("{0}\n{1}\n{2}\n{3}\n{4}\n{5}\n{6}\n{7}", gr["s0"], gr["s1"], gr["a0"], gr["a1"], gr["p0"], gr["q1"], gr["f0"], gr["f1"]);
        }
    }
}