xml-dev - Re: Expanded names are not enough

[Chris Maden <crism@oreilly.com>]

[John Cowan]
> The parser can export an API for converting QNames to
> UniversalNames, which allows you to make the match.  The real
> problem is more serious: as long as the same prefix can map to
> different namespaces in different part of the document, stylesheets
> that depend on prefixed names don't work.  If a document maps the
> "foo" prefix to multiple namespaces, then in CSS1, if you have a
> rule:
> 
> 	foo:p {indent 1em}
> 
> just which foo:p is that?  It has to be both, eliminating the whole
> utility of the local prefix.

Not true.  In this context, foo:p has some universal name (URI + local
name), depending on the namespace map in effect when the CSS style
rules appeared or were included.  This style rule applies to any
element with the same universal name, whatever prefix was used to get
it.

-Chris
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