If you add a method, keep in mind two things: (1) the first argument will always be a list of nodes from which to filter. In the case of context methods (such as position), the function should return an array with a value for each child in the array. (2) all method calls from XML will have “-” replaced with “_”. Therefore, in XML, “local-name()” is identical (and actually becomes) “local_name()”


INTERNAL_METHODS = [ :namespace_context, :namespace_context=, :variables, :variables=, :context=, :get_namespace, :send, ]


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