- From: Henry S. Thompson <ht@cogsci.ed.ac.uk>
- Date: 02 Oct 2000 09:24:18 +0100
- To: "Jeff Rafter" <jeffrafter@definedweb.com>
- Cc: <xmlschema-dev@w3.org>
"Jeff Rafter" <jeffrafter@definedweb.com> writes:
> Does XSV check the "base" attribute of extension and restriction elements--
> to ensure 1) that it exists,
Only at instance validation time, not at schema validation time (as
there might be other sources available at use time).
> 2) that the base is not final;
yes
> 3) that it is extendable
All types are in principle extendable
> (as in the case of anyType)?
This is only not extendable because of the Unique Attribution
requirement, which is checked.
ht
--
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/
Received on Monday, 2 October 2000 04:24:21 UTC