re Challenge: More Compact?

[David Lees]

Because you would also find non-valid IP address.  In fact a split would
not even require them to be numeric.  There is a problem with the
original regex approach too because while it does require digits for the
quad, it would still accept invalid values such as 999.257.382.433

david lees


Roman Suzi wrote:
> 
> On 15 Jul 2001, Tim Daneliuk wrote:
> 
> >The following re is (I think) the description of a legitimate IP addess in
> >"quad" format (IPV4).  My question is, can it be made even shorter?
> >
> >ipquad   = r"^((\d\d?\d?\.){3}(\d\d?\d?))$"
> 
> ipquad   = r"^((\d{1,3}\.){3}(\d{1,3}))$"
> 
> (Why not just split(it, ".") ?)
> 
> Sincerely yours, Roman Suzi
> --
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