IP address : Regular Expression « Development Class « C# / C Sharp

1. C# / C Sharp
2. Development Class
3. Regular Expression

IP address

  

using System;
using System.Text.RegularExpressions;


class RXassemblyApp {
    static void Main(string[] args) {
        string s = "123.45.67.89";
        string e =
            @"([01]?\d\d?|2[0-4]\d|25[0-5])\." +
            @"([01]?\d\d?|2[0-4]\d|25[0-5])\." +
            @"([01]?\d\d?|2[0-4]\d|25[0-5])\." +
            @"([01]?\d\d?|2[0-4]\d|25[0-5])";
        Match m = Regex.Match(s, e);
        Console.WriteLine("IP Address: {0}", m);
        for (int i = 1; i < m.Groups.Count; i++)
            Console.WriteLine(
                "\tGroup{0}={1}", i, m.Groups[i]);
    }
}

   
  

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