Re: Finding the root element

[ht@xxxxxxxxxxxxxxx (Henry S. Thompson)]

Daniel Speck <dspeck@xxxxxxx> writes:

> W. Eliot Kimber wrote:
> 
> > At 07:38 AM 10/29/98 -0500, Norman Walsh wrote:
> > >Apologies if I asked this once before...
> > >
> > >Is it possible to find the node of the document element outside
> > >the context of another element?  Specifically, can I find it in
> > >a function called from (root)?
> >
> > This should work from any node in the grove:
> >
> > (define (docelem node)
> >   (node-propety 'document-element
> >     (node-property 'grove-root node)))
> >
> 
> So with what argument what do you call this function in the (root ...)
> construction rule? (current-node) isn't defined in the root construction
> rule. (process-children) is defined in the standard such that it behaves
> differently (or the definition of "children" is different, I'm not sure
> which) in the (root ...) construction rule. I've had this problem myself
> and I usually just end up looking for the document element while processing
> some element. Any ideas?
> 
Actually, undocumented feature of Jade is that (current-node) does in fact
return the root inside a root rule.  So the following works:

(root
 (literal
  (debug (node-property 'gi
          (node-property 'document-element (current-node))))))

ht
-- 
  Henry S. Thompson, HCRC Language Technology Group, University of Edinburgh
     2 Buccleuch Place, Edinburgh EH8 9LW, SCOTLAND -- (44) 131 650-4440
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