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

[Stefan Kost <kost imn htwk-leipzig de>]

hi Daniel,

Daniel Veillard wrote:
> 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...
just for the mailing-list archive - the corrent name is 'local-name()'

xpath //*[local-name() = 'widget']
Object is a Node Set :
Set contains 1 nodes:
1  ELEMENT widget
    ATTRIBUTE id
      TEXT
        content=Message
    ATTRIBUTE type
      TEXT
        content=label
> > > 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
Its on my TODO list ;-)

Stefan
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