Interesting set of responses so far (insofar that none of them matched my thought of what Perl hacking is).

I always thought that Perl hacking meant that you were fiddling with Perl's C source, and compiling your own really esoteric Perl versions. (I did that but once, to make Perl die nicely under VMS when you asked it to spawn an external program and it exceeded VMS's relatively puny command line length limit (Charles Bailey of course rewrote it and made it much nicer)).

But I digress. Hacking is independent of language "I hacked up a kluge to connect the payroll database to the coffee machine". In this case, it really doesn't matter what language you use. True hacks are language-independent. (Although extra credibility points are earnt for doing it in Snobol or APL).

print@_{sort keys %_},$/if%_=split//,'= & *a?b:e\f/h^h!j+n,o@o;r$s-t%t#u'