Re: RE: James Clark: XML versus the Web
On Wed, 1 Dec 2010 16:45:04 EST BillClare3@aol.com wrote: > > > Several proposals have been made here to integrate a variety of > fundamental XML standards. > Most take an approach of jamming some subset of a disparate variety > of standards into a common structure that maintains all their > idiosyncrasies and inconsistencies. Not the source of this thread Bill, see James blog entry. > An alternative approach is to abstract > from competing specifications and generalize their essential > substance. This can provide simpler and more flexible foundations > with which to rebuild higher level concepts. JC had a target, without one you'd have 42 different definitions of 'essential'? > With such > foundations, compatibility with existing name spaces can be > maintained but deprecated. I'd go further and not require any full level of compatibility, following the SGML to XML model. The goal is a cleaner smaller better integrated subset suitable for the web/mobile/2010. That would drop lots of Amelias hard to explain bits. > Among these fundamental concepts for language foundations are : > Â· Data Types â with nesting, inheritance, extension, > constraints and executable methods Is that really a required part of a new SXML? I'd put Schemas and datatype validation as an XML application. > Â· Data Attributes â especially extended specifications for > metadata, storage, communication, presentation, dynamics, etc. Growing XML? In which case I don't understand this item? > Â· Data structures â atoms, lists, hierarchies, networks As above? How to justify making SXML more complex than XML? Wheres the market for this? > Â· Expressions â arithmetic, logical, selection, iteration, > path, set, query, etc. - with basic and extendible types. Again an application? Not a part of basic SXML? Based on xpath? I don't understand the rest of your post in the context of JC blog. It seems to move in the direction of XML applications more and more. -- regards -- Dave Pawson XSLT XSL-FO FAQ. http://www.dpawson.co.uk
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