in reply to Basic Regular expression
$2 cannot be null, it must be either "e" or "r" or else the entire regex would fail to match. Hopefully the rest becomes obvious once you understand this part?
In Section
Seekers of Perl Wisdom
in reply to Basic Regular expression
$2 cannot be null, it must be either "e" or "r" or else the entire regex would fail to match. Hopefully the rest becomes obvious once you understand this part?