- From: Henry S. Thompson <ht@cogsci.ed.ac.uk>
- Date: 02 Jul 2002 09:55:47 +0100
- To: "Michael Leditschke" <mike@ammd.com.au>
- Cc: "Priscilla Walmsley" <priscilla@walmsley.com>, "'James Clark'" <jjc@jclark.com>, <www-xml-schema-comments@w3.org>
"Michael Leditschke" <mike@ammd.com.au> writes:
<snip/>
> If you wouldn't mind, I'd appreciate a more basic explanation for a
> garden variety user like me. If I understand,
>
> 1) urType is the root of the complex type tree, so all complex types may
> be considered restrictions of urType
>
> 2) it is allowable to derive a complex type with simple content from a
> complex type with mixed content where the minOccurs attributes
> mean its possible to have no elements, only text.
>
> 3) urType by virtue of 1) may be considered to be a mixed content type
> as per 2) and hence can be restrictied as per James's example
Good summary, all correct I believe.
> Would the syntax be similar in the case you cite of a mixed content
> complex type restricted to one of simple content? For instance, would
> the only diference be the replacement of urType with the user defined
> named type?
Precisely.
ht
--
Henry S. Thompson, HCRC Language Technology Group, University of Edinburgh
W3C Fellow 1999--2002, 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/
[mail really from me _always_ has this .sig -- mail without it is forged spam]
Received on Tuesday, 2 July 2002 04:55:54 UTC