Match Groups
using System; using System.Text.RegularExpressions; public class EntryPoint { static void Main( string[] args ) { // Create regex to search for IP address pattern. string pattern = @"(?<part1>[01]?\d\d?|2[0-4]\d|25[0-5])\." + @"(?<part2>[01]?\d\d?|2[0-4]\d|25[0-5])\." + @"(?<part3>[01]?\d\d?|2[0-4]\d|25[0-5])\." + @"(?<part4>[01]?\d\d?|2[0-4]\d|25[0-5])"; Regex regex = new Regex( pattern ); Match match = regex.Match( "192.168.169.1" ); while( match.Success ) { Console.WriteLine( "IP Address found at {0} with " + "value of {1}", match.Index, match.Value ); Console.WriteLine( "Groups are:" ); Console.WriteLine( "\tPart 1: {0}", match.Groups["part1"] ); Console.WriteLine( "\tPart 2: {0}", match.Groups["part2"] ); Console.WriteLine( "\tPart 3: {0}", match.Groups["part3"] ); Console.WriteLine( "\tPart 4: {0}", match.Groups["part4"] ); match = match.NextMatch(); } } }
1. | Use regular to search an IP address | ||
2. | Match IP address pattern and print out the index | ||
3. | Is Match successful | ||
4. | Define multiline patterns | ||
5. | MatchEvaluator: Entry Point IP Reverse |