You say you can't use !~, but you don't really say why not. Does ! /$re/ suit you better? 

my $re = qr/foo/;
my @no_match = grep { ! /$re/ } <INPUT>;

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After Compline,
Zaxo

In reply to Re: positive regex for inverted match by Zaxo
in thread positive regex for inverted match by kgimpel

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