> Correct, that looks (quickly, no comparison made) like the regex from the
> Mastering Regular Expressions book that has previously been
> mentioned here.
I would suggest reading recipe 6.19 in the Perl Cookbook for Tom's comments
on the regex on the last page of Mastering Regular Expressions. :)
The following url is an update to the Mastering Regular Expressions regex
that is referenced in Perl Cookbook, even it is described at imperfect and
incorrect.
> >http://www.perl.com/CPAN/authors/Tom_Christiansen/scripts/ckaddr.gz
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