And with very few changes you can make it an lvalue, so you can use it to assign to:
sub nested : lvalue {
@_ == 1
? $_[0]
: nested($_[0]{$_[1]}, @_[2..$#_]);
}
..and now you can say:
nested(\%hash, a => b => c =>) = "VALUE";
TThis can lead to such fun looking constructs as nested $hashref, a => b => c => d => = 42; Note that this code will only work under perl 5.6.0 or later, though; earlier perls had more restricted definitions of lvalues. See also descending a tree of hash references.
perl -pe '"I lo*`+$^X$\"$]!$/"=~m%(.*)%s;$_=$1;y^`+*^e v^#$&V"+@( NO CARRIER'
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