/(?{local %_; @_{qw {a e i o u}} = ();})
 (?:(.)(?{delete $_{$1}}))*
 (?(?{keys %_})(?!)|)/x;

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Abigail

In reply to Re: regex testing for ALL of the vowels in a scalar by Abigail-II
in thread regex testing for ALL of the vowels in a scalar by D'Oh!!

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