[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: More namespaces perversion
At 08:43 08/10/98 -0700, David Brownell wrote: [...] > >Perhaps what we need is XML Processing Instructions to associate >with the namespace declarations, which identify how the bindings >between namespace URIs and semantics are provided ... ;-) > This *used* to be part of the namespace proposal about 10 web years ago, with the src= attribute. src= mapped to a schema. A schema was deliberately undefined. SIG opinion was against anything like this in the namespace proposal and it was removed. Personally I found this a pity because I had implemented it in JUMBO1 and it worked fine. I had things like: <?namespace ns="something-i-forget" prefix="CML" src="jumbo.cml.schame.xml"?> The schema was very similar to the current XSchema, extended for each element with things like: - help - java class mapping - additional semantic constraints worked nicely - had to tear it all up (yes, I know the warnings are in the drafts - :-) The current namespace spec *deliberately* provides no semantic resolution. I argued against this because it seemed a recipe for chaos. So far I haven't been proved right or wrong - we are still in the inaction phase. The current jumbo has a placeholder: <?jumbo:namespace ns="http://www.xml-cml.org" java="jumbo.cml.*Node"?> and similarly for other namespaces. Not pretty, but it works. There have been warnings about the complexity of registries - I assume that the xml-ea1 props file is a registry? Personally I don't yet care. I'd much rather see us try to make this work than simple wait around. I'm game for whatever URI<->functionality mapping we choose (as long as it's simple) so that we can at least get some experience. David's done it, I've done it - I assume there are others. It's part of XObjects and needs addressing soonest :-) P. Peter Murray-Rust, Director Virtual School of Molecular Sciences, domestic net connection VSMS http://www.nottingham.ac.uk/vsms, Virtual Hyperglossary http://www.venus.co.uk/vhg 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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