This operates on an internal C-level XML node
and returns a reference to its parent node
within the document tree.
Usage
xmlParent(x)
Arguments
x
an object of class XMLInternalNode whose parent is being requested.
Value
An object of class XMLInternalNode.
Details
This uses the internal libxml structures to access the parent in the DOM tree.
This function is generic so that we can add methods for other types of nodes
if we so want in the future.