Re: [xml] RFE: support for function here() in XPath

[Aleksey Sanin <aleksey aleksey com>]

Cool! Thanks!!!

Aleksey.

Daniel Veillard wrote:
> On Sat, Mar 09, 2002 at 06:49:41AM -0800, Aleksey Sanin wrote:
> > Daniel,
> >
> > I am working on XMLDSig implementation and I need some help from you.
> > A new XPath function here() was introduced by this standard:
> >             http://www.w3.org/TR/xmldsig-core/#sec-XPath
> > Will it be possible to add this function to libxml2?
> >     
>
>   It is there, as part of XPointer, but you need to do a bit of work:
>     - you need to register it in your XPath context
>           xmlXPathContextPtr ctxt;
>
>           xmlXPathRegisterFunc(ctxt, (xmlChar *)"here",
> 	                       xmlXPtrHereFunction);
>     - you need to provide a pointer to the node within the context:
>           ctxt->here = here;
>
> Both are done in xmlXPtrNewContext() in xpointer.c f you want to have a look,
> the implementation of here() itself is trivial, this should work as is without
> need for a patch.
>
>   It's funny for me to see this, for historical reasons based on my previous
> work in the W3C XML Linking WG.
>
> Daniel
>
>