Re: locally scoped element decls and namespaces
james anderson <James.Anderson@m...> writes: > Henry S. Thompson wrote: > > > > [...] > > > > We don't yet have a concrete syntax for indicating an association > > between "no namespace" and a schema in xsi:schemaLocation. > > Wait. Is this really saying that one is looking for a way to encode the > specification, that a symbol, so encoded as to denote that it is in no > namespace, is really to be taken to be identical with another symbol, so > encoded as to denote that it is in another, definite namespace? > Isn't this impossible by definition? I think you've misunderstood my (admittedly obscure) point. Suppose I have an XML instance document with no namespace declarations of any kind governing some or all of the GIs therein. These GIs are not in any namespace at all. The Namespace REC even gives us a way of EXPLICITLY indicating that names in a certain scope are in no namespace, namely "xmlns=''". But I may perfectly well want to identify a schema to use for schema-validating such an instance document. How do I do so? xsi:schemaLocation uses PAIRS of URIs to accomplish this, with the first member of each pair being a namespace URI. But _ex hypothesi_ the GIs of the elements in question are not in a namespace, hence there is no namespace URI I can use in xsi:schemaLocation. If we stay with the admittedly rather clunky syntax of xsi:schemaLocation as it stands, I expect we'll nominate something such as ##noNamespace for this purpose. . . ht -- Henry S. Thompson, HCRC Language Technology Group, University of Edinburgh 2 Buccleuch Place, Edinburgh EH8 9LW, SCOTLAND -- (44) 131 650-4440 Fax: (44) 131 650-4587, e-mail: ht@c... URL: http://www.ltg.ed.ac.uk/~ht/ xml-dev: A list for W3C XML Developers. To post, mailto:xml-dev@i... Archived as: http://www.lists.ic.ac.uk/hypermail/xml-dev/ and on CD-ROM/ISBN 981-02-3594-1 To unsubscribe, mailto:majordomo@i... the following message; unsubscribe xml-dev To subscribe to the digests, mailto:majordomo@i... the following message; subscribe xml-dev-digest List coordinator, Henry Rzepa (mailto:rzepa@i...)
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