Cart
[Home] [By Thread] [By Date] [Recent Entries]
While I was at XTech, I had an interesting discussion with a database developer (whose name I unfortunately have forgotten) who was well, rather irate about the existence of the internal subset and its ability to make schemas and validation fairly useless to application development and interchange. Basically, he wanted the ability to check the document structure without the internal subset, so he could rely on the validation process to make certain that documents conformed to an 'official' DTD, without extra junk some twerpy developer put in the internal subset to make his own version valid if not official. Without the ability to turn off the internal subset, validation is a pretty weak gatekeeper for information management. The worst cases involve DTDs that use ANY to accomodate officially approved extensibility, but which can be effectively subverted by anyone with a basic knowledge of XML DTDs. (Even with this ability, we all know that validation doesn't check everything.) Yes, I know that using ANY is asking for trouble, but I also suspect that it does have real uses. It may not rank as a core feature, but I suspect in the near future we'll be seeing: http://xml.org/sax/features/no-internal-subset though it may not appear under xml.org as a core feature, of course. (Maybe the internal subset will disappear in the next round of schemas, maybe not...) Simon St.Laurent XML: A Primer Sharing Bandwidth / Cookies http://www.simonstl.com 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...)
|
