using System;
using System.Text.RegularExpressions;
public class Example
{
public static void Main()
{
string pattern = @/
!(?!(.|\n|\r)*FastEthernet\d\d?\/\d\d?\.\d{1,3})
/;
string input = @"interface FastEthernet0/0
shutdown
!
interface FastEthernet0/0.100
ip address 192.168.1.100
!
interface FastEthernet0/1
shutdown
!";
Match m = Regex.Match(input, pattern);
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