Capture Class represents the results from a single successful subexpression capture. : Regular Expressions « Development « VB.Net






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Capture Class represents the results from a single successful subexpression capture.

 

Imports System.Text.RegularExpressions

Module Example
   Public Sub Main()
      Dim input As String = "this is a test."
      Dim pattern As String = "((\w+)[\s.])+"
      For Each match As Match In Regex.Matches(input, pattern)
         Console.WriteLine("Match: {0}", match.Value)
         For groupCtr As Integer = 0 To match.Groups.Count - 1
            Dim group As Group = match.Groups(groupCtr)
            Console.WriteLine("   Group {0}: {1}", groupCtr, group.Value)
            For captureCtr As Integer = 0 To group.Captures.Count - 1
               Console.WriteLine("      Capture {0}: {1}", captureCtr,group.Captures(captureCtr).Value)
            Next
         Next
      Next
   End Sub
End Module








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