Re: [xml] xmllint --shell : xpath is not working? (libxml2-2.6.4)

[Daniel Veillard <veillard redhat com>]

On Mon, Jan 26, 2004 at 11:06:07AM +0100, Stefan Kost wrote:
> >   it's an XPath FAQ, a non qualified name do not select namespaced nodes.
> > And widget is in the "http://gitk.sourceforge.net/"; namespace.
> > You can try xpath //*[localname = 'widget'] to confirm this.
> / > xpath //*[localname = 'widget']
> Object is a Node Set :
> Set contains 0 nodes:

  that would be localname(), it's a function call...

> > XPath wasn't designed to be used in isolation, the specifications
> > embedding it have to provide the mechanism to bind namespaces,
> > then something like //gimp:widget would work.
> I've already tried that (but excluded it form the post)
> / > xpath //giml:widget
> XPath error : Undefined namespace prefix
> xmlXPathEval: evaluation failed
> Object is empty (NULL)

  normal.

> So does it mean, we need another shell command like e.g.
>   bind ns_prefix,ns_url
> which would call
>   xmlXPathRegisterNs(ctxt,GITK_NS_PREFIX,GITK_NS_URL))

  yes, that's the proper way.

> - or is there another way to handle it?

  not really, even inheriting from the namespaces at the current
node in the document would not help in a lot of cases, especially
default namespaces.

> If not, should prepare a patch?

  yes if you can. See xmlShell() in debugXML.c

-- 
Daniel Veillard      | Red Hat Network https://rhn.redhat.com/
veillard redhat com  | libxml GNOME XML XSLT toolkit  http://xmlsoft.org/
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