[xml] Streaming XPath restrictions in libxml2

[Ravi Reddy <ravi gs-lab com>]

Hi,

I have a set of questions regarding the level of streaming XPath
support. Please answer them.

1). Is there any documentation on what subset of XPath 1.0 does libxml2
support in streaming mode?

2). Does libxml2 internally construct DOM for streamable XPath
evaluation?

3). Does libxml2 support only forward looking XPath and if so what
subset?

Thanks for all the help.

Regards,
Ravi.