[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: Entities in XSchema
Many, many XML-DEVers wrote, in effect: > Entities in XSchemas [expletive deleted] big ones. I surrender. Even when the XSchema-processors-can't-expand-entities meme has worked its way out of the system, there remains the Why-would-you-want-to-do-that???? meme, and I very well realize there's no end to that argument. "Eleven men well armed", as Jno. Swift has it, "will certainly subdue one single man in his shirt." If, however, purely declarative information is to be removed from XSchemas, then I think that parts of the attribute-type and attribute-value declaration syntax should go. In particular, attribute types are reduced to Name (ID, IDREF, ENTITY, NOTATION), Names (IDREFS, ENTITIES, NOTATIONS), Nmtoken, Nmtokens, and CData; attribute values are reduced to #REQUIRED, #FIXED "foo", and other. Without information on the names of valid entities and notations, and potentially without information on IDs, then ID, IDREF, ENTITY and NOTATION are indistinguishable; IDREFS, ENTITIES, and NOTATIONS also all look the same. The only remaining distinction is syntactic. Saying what the specific default value is or whether there is none is overspecific (the DTD must bear this information, and an XSchema would be either redundant or conflicting, a Bad Thing); the only three cases are: a) the value must be present and must be "foo" (#FIXED), b) the value must be present but can be anything (#REQUIRED), or c) the value need not be present. -- 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...)
|
PURCHASE STYLUS STUDIO ONLINE TODAY!Purchasing Stylus Studio from our online shop is Easy, Secure and Value Priced! Download The World's Best XML IDE!Accelerate XML development with our award-winning XML IDE - Download a free trial today! Subscribe in XML format
|