Regular Expressions Match : Regular Expressions « Development « VB.Net

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VB.Net » Development » Regular ExpressionsScreenshots 
Regular Expressions Match
Regular Expressions Match
   
Imports System
Imports System.Text.RegularExpressions

Public Class MainClass

   Shared Sub Main()
        Dim pattern As String = "g"
        Dim AString As String = "a string"
        
        Dim reg_exp As New Regex(pattern)
        Dim matches As MatchCollection
        
        matches = reg_exp.Matches(AString)

        Console.WriteLine(AString)
        
        For Each a_match As Match In matches
            Console.WriteLine("Index " & a_match.Index)
            Console.WriteLine("Length " & a_match.Length)
        Next a_match
   End Sub 

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.
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