using System;
using System.Text.RegularExpressions;
public class EntryPoint
{
static void Main( string[] args ) {
// Create regex to search for IP address pattern.
string pattern = @"
# First part match
([01]?\d\d?
# OR
|2[0-4]\d
# OR
|25[0-5])
\.
# REPEAT
([01]?\d\d?|2[0-4]\d|25[0-5])\.
# REPEAT
([01]?\d\d?|2[0-4]\d|25[0-5])\.
# REPEAT
([01]?\d\d?|2[0-4]\d|25[0-5])
";
Regex regex = new Regex( pattern,
RegexOptions.IgnorePatternWhitespace );
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 );
match = match.NextMatch();
}
}
}