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VBA Automation or Using other applications Libraries

VBScript Regular Expressions

Set createVBScriptRegExObject = CreateObject("vbscript.RegExp")

Tools> References> Microsoft VBScript Regular Expressions #.#
Associated DLL: VBScript.dll
Source: Internet Explorer 1.0 and 5.5


You can use this functions to get RegEx results, concatenate all matches (if more than 1) into 1 string, and display result in excel cell.

Public Function getRegExResult(ByVal SourceString As String, Optional ByVal RegExPattern As String
= "\d+", _
 Optional ByVal isGlobalSearch As Boolean = True, Optional ByVal isCaseSensitive As Boolean =
False, Optional ByVal Delimiter As String = ";") As String

 Static RegExObject As Object
 If RegExObject Is Nothing Then
 Set RegExObject = createVBScriptRegExObject
 End If

 getRegExResult = removeLeadingDelimiter(concatObjectItems(getRegExMatches(RegExObject,
SourceString, RegExPattern, isGlobalSearch, isCaseSensitive), Delimiter), Delimiter)

End Function
Private Function getRegExMatches(ByRef RegExObj As Object, _
 ByVal SourceString As String, ByVal RegExPattern As String, ByVal isGlobalSearch As Boolean,
ByVal isCaseSensitive As Boolean) As Object
 With RegExObj
 .Global = isGlobalSearch
 .IgnoreCase = Not (isCaseSensitive) 'it is more user friendly to use positive meaning of
argument, like isCaseSensitive, than to use negative IgnoreCase
 .Pattern = RegExPattern
 Set getRegExMatches = .Execute(SourceString)
 End With

End Function
Private Function concatObjectItems(ByRef Obj As Object, Optional ByVal DelimiterCustom As String =
";") As String
 Dim ObjElement As Variant
 For Each ObjElement In Obj
 concatObjectItems = concatObjectItems & DelimiterCustom & ObjElement.Value
End Function
Public Function removeLeadingDelimiter(ByVal SourceString As String, ByVal Delimiter As String) As
 If Left$(SourceString, Len(Delimiter)) = Delimiter Then
 removeLeadingDelimiter = Mid$(SourceString, Len(Delimiter) + 1)
 End If
End Function
Private Function createVBScriptRegExObject() As Object
 Set createVBScriptRegExObject = CreateObject("vbscript.RegExp") 'ex.:
End Function


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