Subject: Re: DTDs schemas and validation WAS RE: DTD Files ! From: ht@xxxxxxxxxxxxxxx (Henry S. Thompson) Date: 10 May 2000 09:00:31 +0100 |
MarkH@xxxxxxxx writes: > I'm looking at the thorny issue of validation and what seems to be a > watershed in approaches between content-free DTDs which allow Mike to take > approach he likes, and content-including schemas, which by virtue of their > including things like default elements or attribute values, can prevent Mike > from reading content without also reading and using the validating schema. > > I'm reviewing the state of play and then hope to open up a debate. I think > that it will be appropriate for this list because of the point that Mike > raises about doing validation within XSLT. Good idea. I'd note that XML Schema, by design, does not suffer from a number of the problems which Mike identified. In particular, the schema (or lack of schema) to be used for schema-validation can be chosen at processing time, it's not rigidly determined by the document. The defaulting issue remains, however. ht -- Henry S. Thompson, HCRC Language Technology Group, University of Edinburgh W3C Fellow 1999--2001, part-time member of W3C Team 2 Buccleuch Place, Edinburgh EH8 9LW, SCOTLAND -- (44) 131 650-4440 Fax: (44) 131 650-4587, e-mail: ht@xxxxxxxxxxxxxxx URL: http://www.ltg.ed.ac.uk/~ht/ XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
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