FWIW #1: The thing that gets me isn't the "next", but all the nested dereferences, which are hard to parse.

FWIW #2: It seems like you're doing things backwards. Wouldn't this be more straight-forward? 

for $t (@t) { $y{$t} = [grep /$t/, @f] }

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Update: c.f. jdalbec's response, I didn't read the OP's node carefully enough (probably because #1 is so true... ;).

In reply to Re: next in a post-fixed for by educated_foo
in thread next in a post-fixed for by Codon

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