Nested dereferencing arrows in Perl: to omit or not to omit?

Question

In Perl, when you have a nested data structure, it is permissible to omit de-referencing arrows to 2d and more level of nesting. In other words, the following two syntaxes a

Answer 1

I have always written all of the arrows. I agree with you, they separate better the different subscripts. Plus I use curly braces for regular expressions, so to me {foo}{bar} is a substitution: s{foo}{bar} stands out more from $s->{foo}->{bar} than from $s->{foo}{bar}.

I don't think it's a big thing though, reading code that omits the extra arrows is not a problem (as opposed to any indentation that's not the one I use ;--)