It's been over 20 years since I touched a Regular Expression (on a true Unix
box), so I really don't remember anything; hence, I don't know how to do
this any more. However, you really only have to look at text after the last
backslash, then if it has a dot in it, take only the part before it. If you
can't do that in one regular expression, can't you "chain" two regular
expressions together to do this?

Rick


"Ron Rosenfeld" wrote in message
...
On Mon, 22 Oct 2007 16:11:43 -0400, "Rick Rothstein \(MVP - VB\)"
wrote:


I could modify mine to handle the absence of a file type extension.

I think you should do so. That way the OP (or others following the thread)
will have a choice. Besides, if the OP (or others readers) come from a
Regular Expression background, they will more than likely find your
solution
far more appealing than mine.

Rick

To include filenames that might not include a type extension, a starting
point
is to modify sPat (pattern) so that the characters after the last dot "."
are
optional:

=====================================
Option Explicit
Function reFilename(str As String) As String
Dim re As Object
Dim mc As Object
Const sPat As String = "\\([^\\\,.]+)(\.[^.]+)?$"

Set re = CreateObject("vbscript.regexp")
re.Pattern = sPat
If re.test(str) = True Then
Set mc = re.Execute(str)
reFilename = mc(0).submatches(0)
End If
End Function
======================================

HOWEVER, this may no longer give accurate matches. Windows long file
names may
include the dot "." So really you'd need to exclude all possible file
type
extensions, but not other endings that are not.

I'm no expert on allowable file type extensions in Windows.

What I did below was assume that a final "." followed by three or four
characters that are letters, numbers or underscore would represent a file
type
extension. But that other lengths or including other characters would
not.

It may well be that other characters should be added to the allowable
list.
This can be easily done.

In any event, it does become a lot more complex with long filenames that
might
or might not include an extension:

=====================================
Option Explicit
Function reFilename(str As String) As String
Dim re As Object
Dim mc As Object
Const sPat As String = "\\([^\\]+)((\.\w{3,4})|(\.[^.]*))$"

Set re = CreateObject("vbscript.regexp")
re.Pattern = sPat
If re.test(str) = True Then
Set mc = re.Execute(str)
reFilename = mc(0).submatches(0) & mc(0).submatches(3)
End If
End Function
=========================================

It'd become even more complicated if we allowed other file systems!

Best,
--ron