Re: [FWP] IP address regex golf

[Michael Assels <mjassels@cs.concordia.ca>]

Since some have already departed from the regex constraint,
here's my offering: 

	use Socket;
        /^[\d.]+$/&&defined inet_aton$_;

(The leading regex is there to prevent a false positive when $_ is
a resolvable domain name.)

This may not be as much fun as others, but it has the more boring
virtue of allowing legal addresses like

	4294967295
	127.1

Michael

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