using System;
using System.Text.RegularExpressions;
public class Example
{
public static void Main()
{
string pattern = @"ip dhcp excluded-address ([\d\.]*)($| ([\d\.]*)$)";
string input = @"ip dhcp excluded-address 10.10.8.1 10.10.8.100
ip dhcp excluded-address 10.8.8.1 10.8.9.0
ip dhcp excluded-address 192.168.0.1 192.168.0.10
ip dhcp excluded-address 10.10.9.12
ip dhcp excluded-address 10.10.9.14
!
ip dhcp pool Pool1
network 10.10.8.0 255.255.248.0
update dns both override
dns-server 10.10.1.10 10.10.1.11
default-router 10.10.8.1
lease 8
!
ip dhcp pool Pool2
network 10.8.8.0 255.255.248.0
update dns both override
default-router 10.8.8.1
dns-server 10.10.1.10 10.10.1.11
lease 8
!
ip dhcp pool Pool3
network 192.168.0.0 255.255.255.0
update dns both override
dns-server 10.10.1.10 10.10.1.11
default-router 192.168.0.1
lease 8
!
ip dhcp pool Device1
host 10.10.10.84 255.255.248.0
client-identifier 0100.24ee.065d.3e
!
ip dhcp pool Device2
host 10.10.10.115 255.255.248.0
client-identifier 0194.c691.6a43.3f
!
ip dhcp pool Device3
host 10.10.10.250 255.255.248.0
client-identifier 0194.c691.fb53.7e
!
";
RegexOptions options = RegexOptions.Multiline;
foreach (Match m in Regex.Matches(input, pattern, options))
{
Console.WriteLine("'{0}' found at index {1}.", m.Value, m.Index);
}
}
}
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for C#, please visit: https://msdn.microsoft.com/en-us/library/system.text.regularexpressions.regex(v=vs.110).aspx