Using Regex method Replace:First 3 digits replaced : Regular Expressions « Development « VB.Net

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VB.Net » Development » Regular ExpressionsScreenshots 
Using Regex method Replace:First 3 digits replaced
Using Regex method Replace:First 3 digits replaced
   
Imports System.Text.RegularExpressions
Imports System

Public Class MainClass

   Shared Sub Main()
      Dim testString1 As String = "This sentence ends in 5 stars *****"

      Dim testString2 As String = "1, 2, 3, 4, 5, 6, 7, 8"
      Dim testRegex1 As Regex = New Regex("stars")
      Dim testRegex2 As Regex = New Regex("\d")
      
      Console.WriteLine("Original String 2" & _
         vbTab & vbTab & vbTab & testString2)

      Console.WriteLine("First 3 digits replaced by " & _
         """digit""" & vbTab & _
         testRegex2.Replace(testString2, "digit"3))
  End Sub ' Main

End Class


           
         
    
    
  
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22.\w matches any word character.
23.(\w) matches a word character. This is the first capturing group.
24.\1 match the value of the first capture.
25.\s matches any white-space character.
26.\b: Begin the match at a word boundary.
27.\w+: Match one or more word characters.
28.(e)*: Match an "e" either zero or one time.
29.(\s|$) Match either a whitespace character or the end of the input string.
30.^: Begin the match at the beginning of the input string.
31.\D: Match a non-digit character.
32.\d{1,5} Matches from one to five decimal digits.
33.\D* matches zero or one non-decimal character.
34.$ Matches the end of the input string.
35.\S matches any non-white-space character.
36.\b: Begin the match at a word boundary.
37.(\S+): matches one or more non-white-space characters. This is the first capturing group.
38.\s*: matches zero or one white-space character.
39.Regular expression for class and group
40.Decimal Digit Character: \d
41.Parse Link and Image tags in a HTML file
42.Parse Image tags in a HTML file
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