Funny, I'm finding all sorts of great uses for my qr//e idea today... 

  my $mac_re = do { my $tmp = join ':', ('[0-9a-f]' x 2) x 6;
                    qr/$tmp/i; };

[download]

This is left intentionally non-anchored, so that you can use it even when searching inside a line: 

  my @macs = map { m/($mac_re)/g } qx( /sbin/ifconfig -a );

[download]

In reply to Re: Long regexp un multiple lines by tkil
in thread Long regexp un multiple lines by Lorand

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