[xml] XPath versus node walking performance.

[Jose Commins <axora myrealbox com>]

	I've been looking into using XPath rather than walking nodes - does 
anyone have any experience in the performance differences between these 
two methods?  I spotted in the API for xPath 'xmlXPathCtxtCompile' 
which suggests possible hashing of the terms/tree.
	Does 'xmlReadMemory' hash the XML file as it parses it?  I am 
wondering, if on large documents, xPath may be more efficient if it 
uses hashing.  Any input would be welcome!


Regards,
                Jose.

--
Experience, n.: Something you don't get until just after you need it. 
-- Olivier