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  1. or download this
    use Data::Dump qw( pp );
    my $str = <<STR;
    ...
              Eily => qr/ " (?: [^"\\] | \\. )* " /x);
    
    $str =~ /$re{$_}/ and say "$_ found $&" or say "$_ found nothing" for 
    +keys %re;
    
  2. or download this
     " .. \" ..
    Eily found nothing
    LanX found " .. \"