From: Daniel Veillard (Daniel.Veillard@w3.org)
Date: Thu Oct 12 2000 - 19:49:46 EDT
On Fri, Oct 06, 2000 at 04:32:54PM +0200, Helge Hess wrote:
>
> Daniel Veillard wrote:
> > is available at ftp://xmlsoft.org/
> > Please check it out if you're using Windows or XPath, i probably
> > won't be able to make a real release before next Wed, and won't
> > answer mail in the meantime. Send patches !
>
> I have not looked yet at libxml XPath support, anyway a question ..
>
> In my understanding XPath is some kind of navigation language for XML
> trees, I hope this is right ...
more generally an XML expression language (stack, variables and
functions).
> So, in libxml, is the XPath support tied to the libxml document
> structures
yes
> or does it use callbacks,
no
> so that one can hook in any
> structure ? Eg if I would have navigation like that:
>
> "up().up().left()" (don't know correct XPath yet ..)
Well read the spec, especially the data model and you will understand
why this approach is unfeasible...
> Any suggestions, opinions ?
If you want to use XPath/XPointer etc ... or more generally
the advanced functionnalities of libxml the best way is to associate
your own data structure to the DOM tree using the _private fields
on the nodes.
Daniel
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