Question: How to find all occurrences of a key in a deeply nested structure?
Here's what the object might look like in a Data::Dumper output:
$VAR1 = {
'foo' => {
'child1' => {
'gchild1' => {
'values' => {
'bar1' => 1,
'bar2' => 1
}
}
},
'child2' => {
'gchild1' => {
'values' => {
'bar1' => 1,
'bar9' => 1
}
},
'gchild2' => {
'values' => {
'bar2' => 1,
'bar3' => 1
}
}
},
'child3' => {
'values' => {
'bar1' => 1,
'bar2' => 1,
'bar4' => 1,
'bar5' => 1
}
}
}
};
So the goal is to scan the hash of hashes and return all the references of 'values' most likely as an array of hashrefs. Notice 'values' can be a child of a grandchild, or the grandchild itself (as in child3). There may also be great-great-...-grandchildren. Basically, it could be anywhere in the chain.
Demize
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