http://www.perlmonks.org?node_id=1210824


in reply to Re: Multilayer dereferencing question
in thread Multilayer dereferencing question

@$$hash_s{key} is a shorter way of writing
@{ ${ $hash_s } }{key}

but you need

@{ ${ $hash_s }{key} }

which is usually written

@{ $hash_s->{key} }
as the arrow operator is more readable than the circumfix dereference.

($q=q:Sq=~/;[c](.)(.)/;chr(-||-|5+lengthSq)`"S|oS2"`map{chr |+ord }map{substrSq`S_+|`|}3E|-|`7**2-3:)=~y+S|`+$1,++print+eval$q,q,a,