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  1. using System;
  2. using System.Text.RegularExpressions;
  3.  
  4. public class Test
  5. {
  6. 	public static void Main()
  7. 	{
  8. 		bool contains = Regex.IsMatch("Hello: Hello2", @"\bHello\b(?!:)");
  9. 		Console.WriteLine(contains);
  10. 		Console.WriteLine(Regex.IsMatch("Hello: Hello2", @"\bHello(?![:\w])"));
  11. 	}
  12. }
Success #stdin #stdout 0.06s 29304KB
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https://ideone.com/tBcKPt
language:
C# (gmcs 5.20.1)
created:
4 years ago
visibility:
secret

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