Re: Validating IP Address


good chemistry is complicated, and a little bit messy -LW
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Re: Validating IP Address

by Wonko the sane (Deacon)

on May 16, 2007 at 12:21 UTC ( [id://615758]=note: print w/replies, xml )

Need Help??

in reply to Validating IP Address

This is a variation of one from the Book "Mastering Regular Expressions" by Jeffrey Friedl, which I highly recommend.

unless ( 
    $ip =~ m/^(?:[1]?\d\d?|2[0-4]\d|25[0-5])\.
              (?:[1]?\d\d?|2[0-4]\d|25[0-5])\.
              (?:[1]?\d\d?|2[0-4]\d|25[0-5])\.
              (?:[1]?\d\d?|2[0-4]\d|25[0-5])$
            /x
) 
{ 
    # do something 
}
[download]

Best Regards,
Wonko