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At 09:24 AM 12/8/99 -0800, Don Park wrote: > >If you intend the indexing PI to be used by document >creators, it is not unreasonable to expect them to >include it in their DTD. > >Frankly, this is one of the reasons I do not like to >use DTD. I am in favor of adopting the policy of >ignoring foreign elements and attributes for extensibility. >Absolute ordering of elements also detracts from >extensibility. Relative ordering of elements is fine >though. > >My ideal solution for this problem is a small set of >elements that can be embedded into documents. Adding the robots info to every DTD in the world requires unanimous agreement. Adding a PI requires non-interference with other PIs, a vastly simpler task. Waiting for XML to support mixin vocabularies and for those to be widely used, could take a few years. So the element-based approach just doesn't fit my definition of "ideal". That was the approach I originally thought about, but there were just too many obstacles for it to succeed. So, though the element-based approach might be more comfortable for authors, the robots PI fits both the letter and the intent of PIs in the XML spec and it does the job. If it is blessed as a standard, it sure would be easy for an XML editor to add a dialog box to generate it. That would be even easier for authors. wunder -- Walter R. Underwood wunder@i... wunder@b... (home) http://software.infoseek.com/ http://www.best.com/~wunder/ 1-408-543-6946 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 unsubscribe, mailto:majordomo@i... the following message; unsubscribe 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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