I'm assuming that's producing a Schwartzian Transform. The benefit of the Guttman-Rosler Transform (which I've employed) is that it uses 'sort' instead of 'sort { ... }'. However, speed really isn't an issue here (nor should it be).
Jeff japhy Pinyan,
P.L., P.M., P.O.D, X.S.:
Perl,
regex,
and perlhacker How can we ever be the sold short or the cheated, we who for every service have long ago been overpaid? ~~ Meister Eckhart