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  1. Imports System
  2. Imports System.Text.RegularExpressions
  3.  
  4. Public Class Test
  5. 	Public Shared Sub Main()
  6. 		Dim str As String = "ABBBBBBCD"
  7. 		Dim result As String = Regex.Replace(str, "(?<=B{4})B", "x")
  8. 		Console.WriteLine(result) //=> "ABxCD"
  9. 	End Sub
  10. End Class
Success #stdin #stdout 0.08s 18848KB
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stdin
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Standard input is empty
stdout
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ABBBBxxCD
https://ideone.com/0Q8fd0
language:
VB.NET (mono-3.10)
created:
9 years ago
visibility:
public

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