using System;

using System.Text.RegularExpressions;

public class Program

{

    public static void Main()

    {

        Regex rgx = new Regex("{(.+?)}", RegexOptions.Compiled);

        string input = "This {is} a {test}...";

​

        string output = rgx.Replace(input, match =>

        {

            string newMatch = match.Groups[1].Value;

            return ">> " + newMatch + " <<";

        });

​

        Console.WriteLine(output);

​

        // ---------------------------------------------------------------

        //input = "ws://WebSocketChat02:8000/server.php";

        input = "http://www.contoso.com:8080/letters/readme.html";

        rgx = new Regex(@"^(?<proto>\w+)://[^/]+?(?<port>:\d+)?/",

                        RegexOptions.None, TimeSpan.FromMilliseconds(150));

​

        Match m = rgx.Match(input);

        if (m.Success)

        {

            string proto = m.Result("${proto}");

            string port = m.Result("${port}");

            Console.WriteLine(proto + ":" + port);

            Console.WriteLine(m.Result("${proto}:${port}"));

        }   

​

        // ---------------------------------------------------------------

​

        input = "ws://127.0.0.1:8000/server.php";               // Proto: ws Host: 127.0.0.1 Port: 8000 Path: server.php

        //input = "ws://WebSocketChat02:8000/server.php";       // Proto: ws Host: WebSocketChat02 Port: 8000 Path: server.php

        //input = "http://WebSocketChat:8000/server.php";       // Proto: http Host: WebSocketChat Port: 8000 Path: server.php

        //input = "http://WebSocketChat:8000/server";           // Proto: http Host: WebSocketChat Port: 8000 Path: server

        //input = "http://contoso.com:8080/readme.html";        // Proto: http Host: contoso.com Port: 8080 Path: readme.html

        //rgx = new Regex(@"ws://%[^:/]:<port>/<path>", 

        //              RegexOptions.None, TimeSpan.FromMilliseconds(150));

        //rgx = new Regex(@"^(?<proto>\w+)://[^/]+?:(?<port>\d+)?/",

        //              RegexOptions.None, TimeSpan.FromMilliseconds(150));

​

        rgx = new Regex(@"^(?<proto>\w+)://(?<host>\w+.\w+.\w+.\w+):(?<port>\d+)?/(?<path>\w+.\w+)",

            RegexOptions.None, TimeSpan.FromMilliseconds(150));

​

        m = rgx.Match(input);

        if (m.Success)

        {

            string proto = m.Result("${proto}");

            string host = m.Result("${host}");

            string port = m.Result("${port}");

            string path = m.Result("${path}");

​

            Console.WriteLine("Proto: " + proto + " Host: " + host + " Port: " + port + " Path: " + path);

        }

    }

}