Re: default element construction rule

[Chris Maden <crism@xxxxxxx>]

[Steve]
> I'm feeding Jade some HTML, and would like to it to emit stuff only
> for elements I'm interested in.  For example, I'd like it to only
> print out all <H1> text.  Unfortunately, by default, it spits
> something out for every character in the HTML document.  One way to 
> get what I want would be to create an element construction rule for 
> all the elements other than the ones I want, and have them generate 
> (empty-sosofo).  But that seems like a lot of work.
> 
> I've tried changing the default element construction rule, but
> 
> (default (empty-sosofo))
> 
> winds up killing all my output, even if I have a more specific
> construction rule for H2.

I change the default rule to:

(default (process-node-list (element-children)))

;; (element-children) returns the children of a node of class element.
(define (element-children #!optional (snl (current-node)))
  (node-list-filter (lambda (node)
		      (equal? (node-property 'class-name
					     node)
			      'element))
		    (children snl)))

-Chris
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