If you are going to use a Schwartzian Transform
please give credit where due.
Eh? The ST's an idiom, not some sort of proprietary
construct. It's not as if there's some great dispute over
whose leap of hackerly brilliance it was -- the credit is
right in the name! When someone sees map/sort/map
they'll immediately think "Oh, a Schwartzian Transform".
Immediate credit to Merlyn.
That said, pointing out that a ST was used is probably
a Good Thing -- that way, a novice (or maintenance
programmer :-) confronted with the code has some recourse
beyond "what the hell's up with all these maps?"
The ST is pointed out, so the unfamiliar reader can go off
and read up on STs... and learn something in the process.