[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: Entities in XSchema
Paul Prescod wrote: > For > instance, do we want a single ID namespace as XML/DTD has? Or do we want > one namespace per attribute? The latter seems more powerful to me! I don't think it is, or at least you haven't shown so below. > So a > "FIG" element could have both a FIGID and an ID. The FIGID might be only > available on "FIG" elements, and thus a unique identifier for classes, > without invading the namespace of "EXAMPLEs". Note that I use the word > namespace in a sense more or less unrelated to that of the "namespaces" > specification. I used the term "IDspace" in a previous posting. However, your FIGID value can be just an ID value if it is prefixed with "FIG-"; where you would assign a FIG-unique FIGID value, just assign a prefixed and document-unique ID value. (One could get broader than that and qualify all ID values with the URI of the document to which they belong, thus making them globally unique, but URIs don't offer strong enough guarantees of non-reusability.) > IDREF should also be more powerful. It should allow full XPointers (though > an XSchema processor might only check local ones). This is rebuilding XLink. ID/IDREF have the advantage of being very small and very cheap. -- John Cowan http://www.ccil.org/~cowan cowan@c... You tollerday donsk? N. You tolkatiff scowegian? Nn. You spigotty anglease? Nnn. You phonio saxo? Nnnn. Clear all so! 'Tis a Jute.... (Finnegans Wake 16.5) 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/ To (un)subscribe, mailto:majordomo@i... the following message; (un)subscribe 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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