| From: | Peter Eisentraut <peter_e(at)gmx(dot)net> |
|---|---|
| To: | Andrew Dunstan <andrew(at)dunslane(dot)net> |
| Cc: | James Pye <lists(at)jwp(dot)name>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>, Nikolay Samokhvalov <samokhvalov(at)gmail(dot)com> |
| Subject: | Re: xpath processing brain dead |
| Date: | 2009-03-02 08:26:25 |
| Message-ID: | 49AB9831.3020809@gmx.net |
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| Lists: | pgsql-hackers |
Andrew Dunstan wrote:
> can you point me at any call in libxml2 which will evaluate an xpath
> expression in the context of a nodeset instead of a document? Quite
> apart from anything else, xpath requires there to be a (single) context
> node (see http://www.w3.org/TR/xpath20/#context ). For a doc, we set
> that node to the document node, but what would it be for a node-set or a
> fragment? If we can't get over that hurdle we're screwed in pursuing
> your line of thought.
Which may hint at the fact that running xpath on content fragments is
ill-defined to begin with?!?
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