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   Re: Namespaces !

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  • From: John Cowan <cowan@locke.ccil.org>
  • To: XML Dev <xml-dev@ic.ac.uk>
  • Date: Tue, 04 Aug 1998 15:17:07 -0400

Peter Murray-Rust wrote:

> D: FWIW I have been hacking namespaces into JUMBO2 and seem to require two
> classes:
>         Namespace (one for each distinct xmlns in the document)
>         UniversalName (One for each distinct elementType and each distinct attribute)

Okay.  Do we really need UniversalName as a *class*, or is it sufficient
(as I continue to believe) to represent it as a String, possibly
interned?  If the latter, then my ParserFilter approach will work
fine, returning all element names in the universal form of
URI + delimiter + localPart (where URI can be null), and all
attribute names in the form URI + delimiter + localPart for
global attributes, and URI + delimiter + elementLocalPart + delimiter
+ localPart for local attributes.

> If SAX  can (a) process the minimisation completely and (b) return
> Namespaces for the document and (c) return a universal name for each
> Element and Attribute then I think I shall be very happy. From what various
> people have said it seems fairly straightforward.

Using my ParserFilter approach, of course, no parsers need to change
at all to support namespaces: it becomes an *application* issue,
but supported by a *universal* piece of machinery.  Ditto with
inherited attributes generally.
John Cowan	http://www.ccil.org/~cowan		cowan@ccil.org
	You tollerday donsk?  N.  You tolkatiff scowegian?  Nn.
	You spigotty anglease?  Nnn.  You phonio saxo?  Nnnn.
		Clear all so!  'Tis a Jute.... (Finnegans Wake 16.5)

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