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Re: more grist
- From: ht@cogsci.ed.ac.uk (Henry S. Thompson)
- To: Ben Trafford <ben@legendary.org>
- Date: Mon, 05 Mar 2001 17:11:36 +0000
Ben Trafford <ben@legendary.org> writes:
> 1) InfoSet has no standardized extension mechanism. Kinda defeats
> the purpose of extensibility, doesn't it?
My understanding is that it doesn't need one. It's obvious how to add
properties or node types, the XML Schema WG asked the Core WG if we
needed 'permission' in the Infoset spec. to do so, and they said 'no,
anything not forbidden is allowed'.
> 2) InfoSet has no conception of scaled conformance.
It has the perfect conception of scaled conformance: producers say
what they supply, consumers say what they require. See Appendix D of
the current XML Schema spec. [1] for an example.
ht
[1] http://www.w3.org/TR/xmlschema-1/#infoset
--
Henry S. Thompson, HCRC Language Technology Group, University of Edinburgh
W3C Fellow 1999--2001, part-time member of W3C Team
2 Buccleuch Place, Edinburgh EH8 9LW, SCOTLAND -- (44) 131 650-4440
Fax: (44) 131 650-4587, e-mail: ht@cogsci.ed.ac.uk
URL: http://www.ltg.ed.ac.uk/~ht/