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Hash : c2f4da1a
Author :
Date : 2017-05-21T22:08:50
Improve XPath predicate and filter evaluation Consolidate code paths evaluating XPath predicates and filters. Don't push context node on stack when evaluating predicates. I have no idea why this was done. It seems completely useless and trying to pop the context node from a corrupted stack has already caused security issues. Filter nodesets in-place and don't create node sets with NULL gaps which allows to simplify merging a great deal. Simply move matched nodes backward and create a compact node set. Merge xmlXPathCompOpEvalPositionalPredicate into xmlXPathCompOpEvalPredicate.
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