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2/1/2002 11:29:44 AM, "Wayne Steele" <xmlmaster@h...> wrote: > > Another way to go about > it would be to have a special transformation to "namespace- > normalize" the instance document. This version would be used for > DTD Validation. The ns-normalized version could then be discarded, > and the actual instance document presented to the user or > application for further processing. > >Nobody has done this though, because it would require: >1. changes to existing validating parsers >2. consensus on how to write DTDs that would work with this process (compare >DTDs for XML-Schema and XHTML for two different approaches). Interesting idea. DOM Level 3 does a good bit of this, a) providing a normalize method to clean up the namespace prefix:URI mappings -- although I'm not sure it cleans things up well enough to be useful for this job b) provides an abstraction of both schemas and DTDs to allow in principle -- although again I'm not sure that the reality actually works well enough to really do what we want here -- validation of the normalized instance against a DTD rather than having the parse-time validation choke on the inconsistencies between DTDs and Namespaces. I would encourage anyone interested in this use case to read the DOM Level 3 stuff and suggest tweaks that might support it.
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