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in reply to Re^2: split string using optimized code or perl one liner
in thread split string using optimized code or perl one liner

On that basis the following should work but it doesn't ...

$ echo www.perlmonks.org.split.reduce.code.check | perl -lF'(\.)' -E's +ay sub{map pop,@_}->(@F)' $

... and I can't think why at the moment. Perhaps I'm misunderstanding what you have done :-/

Cheers,

JohnGG