- From: Henry S. Thompson <ht@cogsci.ed.ac.uk>
- Date: 03 Jan 2001 12:44:02 +0000
- To: "Mark Young" <mark@kamiak.com>
- Cc: <xmlschema-dev@w3.org>
"Mark Young" <mark@kamiak.com> writes:
> Can namespaces be declared from any element within a Schema (as in
> general for XML)? All the example schemas I've seen have only
> declared namespaces in the Schema element itself. e.g.:
Yes, per normal namespace rules.
> Also, the following appears for many (all?) element information items, in
> their XML Representation Summaries:
>
> {any attributes with non-schema namespace . . .}>
>
> 1) I suppose this implies that the attributes defined above the comment are
> in (the) schema namespace
No and Yes. No, because unprefixed attributes are not directly in any
namespace, but as they are associated with their containing element,
which _is_ in the XML Schema namespace, so Yes, they are indirectly
associated with it.
> 2) Does it mean that a schema writer can put their own attributes into
> element information items?
As long as you qualify them with a namespace other than the XML Schema
namespace == use a prefix declared for such a namespace, yes. For
example:
<xs:element name="foo" type="my:baz" hack:extra="banana"/>
in a context where 'xs', 'my' and 'hack' are all properly declared.
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 Wednesday, 3 January 2001 07:44:10 UTC