http://www.perlmonks.org?node_id=82795

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

There was a near article in about Issue 19 of the Perl Journal called "Design Patterns" in which this guy had a neat one-liner. Let's say we have;
$agenda = [ \a, \b, \c ];
where a, b, c are subs which expect and return arrays.

He wrote a one-liner which ran through the subs, taking the output of one and sending it in as the input of the next sub.