Re: DSDL part 9: new namespace declarations not needed as part
Arjun Ray scripsit: > Before you apply a validation DTD to an instance, how do you know whether > it is even appropriate to do so, Okay, this is what conflicts lawyers call the "problem of characterization": how can you apply rules that are appropriate for objects of type X until you have decided which rules should tell you what is and is not an object X! If your application accepts only one document type, then you can write a schema (in RNG, the union of two schemas is always a schema) that describes that document type. If you accept more than one document type, you may have to use some sort of probe to determine which document type this instance might conform to; this could constitute a full validation or something smaller. -- John Cowan <jcowan@r...> http://www.reutershealth.com I amar prestar aen, han mathon ne nen, http://www.ccil.org/~cowan han mathon ne chae, a han noston ne 'wilith. --Galadriel, _LOTR:FOTR_
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