- From: Jonathan Borden <jonathan@openhealth.org>
- Date: Wed, 20 Feb 2002 16:08:36 -0500
- To: "Paul Prescod" <paul@prescod.net>, "TAG" <www-tag@w3.org>
Paul Prescod wrote: > > 1 DOCTYPE statement > 2 top-level namespace > 3 schema reference declaration > 4 other root-level declared namespaces > 5 any attribute on the root element > 6 anything in the document" > > I have not seen a compelling use-case for anything other than 1 and 2. > Most of the others are just typing conveniences, IMO. > Regular expressions allow types to be defined by any of the above. The theory and practice has been well described. See XDuce or Murata Makoto's papers as a starting for some references. Jonathan
Received on Wednesday, 20 February 2002 16:10:58 UTC