Removed a memcpy if xmlXPathNodeSetMerge(); it seems we really need to
* xpath.c: Removed a memcpy if xmlXPathNodeSetMerge(); it seems we really need to walk the whole list, since those nastly namespace nodes need to be added with xmlXPathNodeSetDupNs(); thus a pure memcpy is not possible. A flag on the node-set indicating if namespace nodes are in the set would help here; this is the 3rd flag which would be usefull with node-sets. The current flags I have in mind: 1) Is a node-set already sorted? This would allow for rebust and optimizable sorting behaviour. 2) Of what type are the nodes in the set (or of mixed type)? This would allow for faster merging of node-sets. 3) Are namespace nodes in the set? This would allow to skipp all the namespace node specific special handling. Faster node-set merging if the first set is empty; just memcpy the set.
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