Another interesting (P) effect

[Bart Schaefer <schaefer@xxxxxxxxxxxxxxxx>]

This isn't new, but given that ${(P)${(f)lines} is an example in the
"Rules" (rule 23), seems worth mentioning:

torch% a=AYY
torch% abc=AYYBEESEE
torch% lines=$'a\nb\nc'
torch% print ${(P)${(f)lines}} 
AYY

So (P) parses off the first thing that looks like a parameter name and
discards everything else, with no error.

torch% IFS='' eval 'print ${(P)${(f)lines}}'
AYYBEESEE