- From: Henry S. Thompson <ht@cogsci.ed.ac.uk>
- Date: 28 Apr 2001 08:24:35 +0100
- To: Tom Welch <twelch@fastlinepub.com>
- Cc: "'xmlschema-dev@w3.org'" <xmlschema-dev@w3.org>
Tom Welch <twelch@fastlinepub.com> writes:
> Is the following element guaranteed to create one and only one node when the
> node is not explicitly defined in the document using this schema?
>
> <element name="one" type="decimal" minOccurs="0" maxOccurs="3" default="1"/>
Element defaults are not like attribute defaults, in part because of
occurrence range issues.
The above construct will _never_ create an element node -- it will
simply fill in the value 1 for any _empty_ element in the
schema-processed infoset, e.g.
<one>234</one>
<one/>
<one>432</one>
will have the same PSVI as
<one>234</one>
<one>1</one>
<one>432</one>
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 Saturday, 28 April 2001 03:24:33 UTC