One way to deal with autovivification is copying:
use Storable qw/dclone/;
my $data = {
test => {
foo => { bar => 'bar',
baz => 'baz',
bul => { foo => { bar => 'bul' } } },
bar => { baz => 'baz' },
},
foo => { bar => 'foo' },
bar => [1,2,{foo => {bar => 42}},3]
};
my @result = rec_data('->{foo}->{bar}',$data);
print join(':',@result),"\n";
sub rec_data {
my $path = shift;
my $data = shift;
my $ref = ref $data || return;
my @vals = $ref eq 'HASH' ? values %$data : @$data;
my $cdat = dclone($data);
return (eval"\$cdat$path" || (),map{rec_data($path,$_)}@vals)
}
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