[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: XPath/XSLT 2.0 concerns
Jeni Tennison wrote: > XSLT processors could do the kind of optimisation you're talking about > *right now*, based on DTDs. Do they? If they don't, then why not? Apart from the problem that DTD related optimisations are hard to do locally, I guess one reason is that the DTD analysis and the appropriate optimisations have to be done a run time rather than at compile time. And of course, it is rather unclear whether the expense for the optimisation is offset by speed gains, unless the documents are really big. Keeping the optimisation for multiple transformation runs in order to make it worthwhile is also something which seems to require extensions to current APIs, another obstacle. J.Pieschmann
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