s/\b(qu|[^\W0-9_aeiou]+)?(\w+)/$1?"$2\0$1ay":"$2\0ay"/egi;

##</code><code>##

package PigLatin;

use overload (
  q{""} => sub {
    (my $str = ${ $_[0] }) =~ tr/\0//d;
    return $str;
  },
  fallback => 1,
);

sub to {
  my ($class,$word) = @_;
  $word =~ s/\b(qu|[^\W0-9_aeiou]+)?(\w+)/$1?"$2\0$1ay":"$2\0ay"/egi;
  bless \$word, $class;
}


sub from {
  my $word = substr ${ $_[-1] }, 0, -2;
  # $word has the \0 in it
  return join "", reverse split /\0/, $word;
}

1;

##</code><code>##

use PigLatin;
$plain = "Practical Extraction and Report Language";
$funny = to PigLatin $plain;
$reg   = from PigLatin $funny;