[Nh-pm] Regexp help

[Paul Lussier]

In a message dated: 27 Feb 2003 16:34:43 EST
Kevin D. Clark said:

>In some sense, I can see what you're trying to do with the "$1", but
>you should know that if you're trying to do something like this, then
>you need to use \1 instead of $1 (due to how internals of the Perl
>machine works...).  But you're fundamentally using this wrong anyways
>(\1 will match whatever the regex engine matches, not the actual regex
>itself)

I figured I was missing something fundamental, like understanding how 
the regex engine really works :)

>How about this instead?:
>
>  (?:[[:xdigit:]]{2}:){5}[[:xdigit:]]{2}

Just need one more set of () :

	((?:[[:xdigit:]]{2}:){5}[[:xdigit:]]{2})

This here works just fine:

	s/.*((?:[[:xdigit:]]{2}:){5}[[:xdigit:]]{2})/\1/o

Thanks much!
-- 

Seeya,
Paul
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