Re: [xml] SelectSingleNode

[Daniel Veillard <veillard redhat com>]

On Tue, May 03, 2011 at 03:42:56PM -0400, Paul B. Cameron wrote:
> I believe I'm able to answer my own questions:
>
> 1. Use xmlGetNodePath to build the node path instead of rolling a custom
> function. 

  right !

> 2. There is no need to return a copy of a node retrieved by an XPath
> evaluation - node pointers returned by the query point to the actual node
> memory in the tree. These nodes do not become invalid when the query object
> or context are freed. 

  And right ! ... except for the nasty case of namespace nodes, where
libxml2 model and XPath data model don't match and as a result the
namespace nodes returned in an XPath query don't come from the tree
(but are freed when the XPath object is freed).

aniel

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