Streaming XPath Support

My understanding is that the current support is mainly for
the Selector
in XSD.

Are there any plan to enhance the support for streaming
Xpath such as
//, *, simple predicates, etc. Also, is this internal
feature added
mainly for performance and for reducing memory usage?

Is the current implementation based on some finite state
machine
approach with some path sharing?

Stanley
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On Tue, Dec 19, 2006 at 11:01:45AM -0800, Stanley Poon
(spoon) wrote:
> My understanding is that the current support is mainly
for the Selector
> in XSD.

  right though we also use it to speed-up simple XPath
queries

> Are there any plan to enhance the support for streaming
Xpath such as
> //, *, simple predicates, etc.

  I take patches! Again that's something which Kasimier
worked on
and a bit orphaned at this point.

> Also, is this internal feature added
> mainly for performance and for reducing memory usage?

  to be able to stream XSD validation without keeping trees
around.

> Is the current implementation based on some finite
state machine
> approach with some path sharing?

  based on automatas, see pattern.c in the sources.

Daniel

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