[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] New schema spec
I am interested in some comments on the new Schema spec. In particular, what are people's thoughts about the fact that the AND connector has been reintroduced and that SEQ,ALT,AND blocks now support an optional min/max repetition count? Is there any way that such a system could be reasonably confirmed to be non-ambigious (and by reasonable I mean very fast and small amount of code.) And, given that, is there any way that it could be validated against in some less than exhaustive search way? The scenarios that scare me are say you have a node that can take 1 to 5 of some complex scenario, and each of those did similar things. How can you guarantee that if you only ate 2 of the top level that something down stream would not have matched better? Or if you ate only one at any one level that that wouldn't be a suboptimal match than if you had eat 3 of them? I'd be interested to hear from some our more pointy headed breathren (just kidding of course :-) about the theoretical implications of such a system. It seems obvious that DFAs, and the very fast and compact mechanisms they represent, would go out the door immediately, right? And that would remain true even if the AND connector was left out. Just the m to n repetition system means that DFAs wouldn't work anymore right? 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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