[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: Validation
Marcelo Cantos wrote: > > Of course, none of the above discourse will eliminate the need for > discussion on what, exactly, is needed and how that need is to be > satisfied. As one colleague astutely pointed out to me, I am really > transforming the issue from "real validation" to "sufficient > validation". It would be a mistake, however, to conclude that this is > a trivial transformation in the statement of the problem. It diverts > the emphasis of the search markedly away from completeness and towards > practicality and useability (of course, completeness remains > desirable, it merely ceases to be a central goal). Not in disagreement. Still, DTDs play a role in expressing constraints that in some way, must be implementable and to some degree must be validated for a particular piece of content. Here is a different kind of schema from the VRML language. How would any/all of the DTDs/schemas proposed for XML be used to define this? Which if any are better? Transform { eventIn MFNode addChildren eventIn MFNode removeChildren exposedField SFVec3f center 0 0 0 exposedField MFNode children [ ] exposedField SFRotation 0 0 0 1 0 exposedField SFVec3f scale 1 1 1 exposedField SFRotation scaleOrientation 0 0 1 0 exposedField SFVec3f translation 0 0 0 field SFVec3f bboxCenter 0 0 0 field SFVec3f bboxSize -1 -1 -1 } It isn't a trick question. Serious people are currently evaluating the suitability of XML for this. In this form, the declaration is quite compact. Right now, without datatypes and without event models, this *simple* node may be more than XML can describe. Any takers? len bullard 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/ and on CD-ROM/ISBN 981-02-3594-1 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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