comment on

Now that I see the answer I remember discussing this issue and IMHO it makes some sense.

What kind of list should be the logical result of a doesn't-match operator?

Anyway it breaks the believe in orthogonality and that doubling negations leads to the same results...

... which is indeed not exceptional in perl's "DWIM universe".

So the OP should better use unless and =~.

Cheers Rolf

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