- From: Henry S. Thompson <ht@inf.ed.ac.uk>
- Date: Fri, 02 Apr 2004 09:47:43 +0100
- To: Xan Gregg <xan.gregg@jmp.com>
- Cc: www-xml-schema-comments@w3.org, Mary Holstege <holstege@mathling.com>, Dave Peterson <davep@iit.edu>
Xan Gregg <xan.gregg@jmp.com> writes:
> Definition of {facets} in 4.1.2.1 Derivation by restriction:
>
> {facets} The union of the set of Facets (§2.4) components
> resolved to by the facet [children] merged with {facets}
> from {base type definition}, subject to the Facet
> Restriction Valid constraints specified in Facets (§2.4).
>
> What is being "unioned" and how does "merge" work? For example, if
> the base has a minLength facet with value 5 and the derived type has a
> minLength child facet of value 7, how many minLength facets are in the
> derived type's facets property?
The (also normative) Schema Component Constraint: Simple Type
Restriction (Facets) in Part 1 [1] has clearer words, but the two
parts of the REC should be better synced, no question.
ht
[1] http://www.w3.org/TR/2004/PER-xmlschema-1-20040318/structures.html#st-restrict-facets
--
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 Friday, 2 April 2004 03:48:57 UTC