Well, the official perl book is 'Programming Perl' (Wall,Christiansen,Schwartz) and it naturally has this and practically everything else covered.

Also check out the manual pages, in this case perlre (also available online: http://perldoc.perl.org/perlre.html ).

In reply to Re^3: Cleaner regex conversion by jethro
in thread Cleaner regex conversion by DanielNeedles

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