- From: Henry S. Thompson <ht@inf.ed.ac.uk>
- Date: Thu, 24 Mar 2005 08:44:21 +0000
- To: Eric Sirois <easirois@rogers.com>
- Cc: Eliot Kimber <ekimber@innodata-isogen.com>, xml-schema-dev <xmlschema-dev@w3.org>
I'm afraid your example/discussion depends on knowledge of a schema
(DITA?) which I'm not familiar with.
There are a number of circumstances in which substitution groups can't
be used:
1) The desired target (substitution group head) is a declared
locally, within some complex type definition, rather than at the
top-level;
2) The desired target has an anonymous type definition;
3) The desired target or its type have blocked substitution either
directly via 'block' or indirectly, via 'final'.
Not sure which of these cases you're pointing to.
ht
--
Henry S. Thompson, HCRC Language Technology Group, University of Edinburgh
Half-time member of W3C Team
2 Buccleuch Place, Edinburgh EH8 9LW, SCOTLAND -- (44) 131 650-4440
Fax: (44) 131 650-4587, e-mail: ht@inf.ed.ac.uk
URL: http://www.ltg.ed.ac.uk/~ht/
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Received on Thursday, 24 March 2005 08:44:36 UTC