Regular Expressions

[369852]

Hi all!!

Could someone point me in the direction of a good tutorial or samples on how to use regular expressions in vb!

Thanks a million

 

[RichardF]

i think this came from Msdn ...

' need reference to Microsoft VBScript Regular Expressions
' (vbscript.dll)

Function RegExpTest(patrn, strng) As String
Dim regEx As New RegExp
Dim Match As Match
Dim Matches As MatchCollection ' Create variable.
Dim Sm As SubMatches
Dim RetStr As String
Dim s As String

regEx.Pattern = patrn ' Set pattern.
' regEx.IgnoreCase = True ' Set case
regEx.Global = True ' Set global applicability.
Set Matches = regEx.Execute(strng) ' Execute search.

For Each Match In Matches ' Iterate Matches
RetStr = RetStr & "Match found at position "
RetStr = RetStr & Match.FirstIndex & ". Match Value is '"
RetStr = RetStr & Match.Value & "'." & vbCrLf
Next
RegExpTest = RetStr
End Function

Private Sub Form_Load()
MsgBox RegExpTest("ZONE \[(.*)\]", " worker ZONE [ In the Zone ]&quot
Unload Me
End Sub

 

[CajunCenturion]

You might to take a look at the following website

http://developer.netscape.com/docs/manuals/js/client/jsguide/regexp.htm

Althought its written with a slant towards JavaScript, it does handle regexp fairly well - for vbScript, you replace the forward slashes with quotes Good Luck
--------------
As a circle of light increases so does the circumference of darkness around it. - Albert Einstein

 

[strongm]

http://msdn.microsoft.com/library/d...tml/reconIntroductionToRegularExpressions.asp

 

[Custom24]

Hi!
I love regular expressions, so I've got a few - most are geared to VBScipt, but if you follow RichardF's suggestion you won't go wrong. The most difficult bit with regular expressions is getting the pattern right.
One final point - IE 5 uses a different script engine than IE 5.5, and there is a difference between how they implement RegExp. Specifically, "non-greedy" matching is not supported in IE5, so use IE 5.5+ or at least download the scripting engine for IE 5.5 from MSDN

Anyway, here are some links

http://www.4guysfromrolla.com/webtech/090199-1.shtml

http://msdn.microsoft.com/library/d...tml/reconIntroductionToRegularExpressions.asp

http://msdn.microsoft.com/library/default.asp?URL=/library/en-us/dnclinic/html/scripting051099.asp

http://www.vb2themax.com/Item.asp?PageID=TipBank&ID=398

Mark