Regex for IPv6


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Regex for IPv6

by fuzzyping (Chaplain)

on Jan 27, 2004 at 16:49 UTC ( [id://324473]=perlquestion: print w/replies, xml )

Need Help??

fuzzyping has asked for the wisdom of the Perl Monks concerning the following question:

I'm trying to match IPv6 addresses and having some difficulty. IPv4 is very standard and predictable, but the address architecture for IPv6 allows for a number of "short-hand" representations. It's entirely possible to see anything from :: to ::1 to 0:0:0:0:0:0:0:0. An example "short-hand" might be to represent FF01:0:0:0:0:0:0:101 as FF01::101.

I expect that I can use /\w*\:\w*\:\w*/ to verify the input line contains an actual IPv6 address, but I'll need to be able to extract the address. What could I use that would match 0:0:0:0:0:0:0:0 as well?

Thanks!

-fp

Comment on Regex for IPv6 Download Code

Replies are listed 'Best First'.
Re: Regex for IPv6 by BrowserUk (Patriarch) on Jan 27, 2004 at 17:06 UTC
You might look at Net::IPv6Addr. If you don;t want to use the module, you could steal the regex/validation code from inside it. Examine what is said, not who speaks. "Efficiency is intelligent laziness." -David Dunham "Think for yourself!" - Abigail Timing (and a little luck) are everything!	[reply]
Re: Re: Regex for IPv6 by fuzzyping (Chaplain) on Jan 27, 2004 at 17:56 UTC
Yeah, I think the regex code from that will help out. Thanks! -fp	[reply]
Re: Regex for IPv6 by halley (Prior) on Feb 06, 2004 at 13:00 UTC
Hm, I think this IPv6 regex stuff should be tested and adopted in Regex::Common::net. I think Abigail is the maintainer of that package on CPAN. `use Regex::Common; $x =~ /$RE{net}{IPv6}/;` [download] -- `[ e d @ h a l l e y . c c ]`	[reply] [d/l]

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