Re: [xml] xmllint and namespaces

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

Hi Daniel,

> On Fri, Oct 25, 2002 at 10:45:24AM +0200, Stefan Kost wrote:
>
> >I don't get it. I read the XPath spec over and over again, but there is nothing
> >that convinces me that I am doing something wrong.
>
>
>   you need to read more then,
>
>
> >before using the context. Now that namespace has a "ns->prefix==NULL", should I
> >still attach it or better use
> >    ctxt->namespaces=NULL;
> >    ctxt->nsNr=0;
> >It seems to make no difference. I don't use "xmlXPathRegisterNs()" as there is
> >no version of it accepting a xmlNsPtr.
>
>
> Repeat after me
>  "There is no notion of a default namespace in an XPath query"

Okay, but I have read (under http://www.w3.org/TR/xpath) :
"Thus, the name of a node is modeled as a pair consisting of a local part and a 
possibly null namespace URI; this is called an expanded-name."

and things like that, but can't find your quotation.

> As a result libml2 does NOT allot to define a default namespace for
> an XPath context.
>
>
>
> cannot be seclected with
> "//bar"
>
> it can be selected with
> "//foo:bar" when the XPath context contains a namespace binding
> for the foo prefix mapping to the namespace name "http://example.com/foo";.
> Just do it ! There is NO other way.
>
> Daniel
I've done it, it does work now and I appreciate any help that I've got from the 
list, but even though I have read the specs again, I honestly didn't got it from 
the xpath specs that it has to be like this.

Stefan
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