Right. Of course, silly me.

Ok, so this does what I want: 

perl -lwe '$x = 1; print join " ", grep { scalar($x++../D/) } qw(A B C
+ D E F)'
# prints:
# A B C D

[download]
Although this is not particularly neat. Is there a better way?

In reply to Re^2: Flip-flop won't DWIM by wu-lee
in thread Flip-flop won't DWIM by wu-lee

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