Re: default element construction rule

[Chris Maden <crism@xxxxxxx>]

[Gregg Reynolds]
> Paul Prescod wrote:
> > 
> > The default rule is invoked at *every level* in the absenseof anything
> > else that matches. 
> 
> Yes and no.  Below you'll find a very simple dtd, doc instance and
> stylesheet.  If you experiment with commenting out various lines
> you'll find that the only way to fire the H2 element-construction
> rule is to include a construction rule for its ancestors,

... or to use the easy way.

> **UNLESS** you omit the default-element-construction-rule.

There is always a default element construction rule.  For elements, it
is (process-children), and for data nodes, it's (make character).  See
clause 12.4.1 (near the bottom of p. 175 if you have the ISO
PostScript), the paragraph beginning, "In addition to
_construction-rule_s explicitly specified in _style-language-body_s,
there is an implicit _default construction-rule_."

The trick is to turn off the processing of data so that you only
process element children, and then provide an overriding construction
rule for what you want.  See
<URL:http://www.mulberrytech.com/dsssl/dssslist/archive/1947.html> for
how I do this.

-Chris
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