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Re: RE : Comparison of Xml documents

• To: Bob Foster <bob@o...>
• Subject: Re: RE : Comparison of Xml documents
• From: John Cowan <cowan@m...>
• Date: Sun, 23 Nov 2003 01:06:42 -0500
• Cc: Bob Wyman <bob@w...>, 'GARNIER Pierre' <pgarnier@m...>,'Alaric B Snell' <alaric@a...>, xml-dev@l...
• In-reply-to: <3FC02669.4010000@o...>
• References: <3FBF38A1.9060908@o...> <002501c3b116$f987a880$650aa8c0@BOBDEV> <20031123022618.GL26171@m...> <3FC02669.4010000@o...>
• User-agent: Mutt/1.3.28i

Bob Foster scripsit:

> As was pointed out earlier, the "schema-centric" view is missing the 
> ability to say, for elements, that no order is prescribed and order is 
> not significant. Same semantics as attributes.

If order is not significant, why not prescribe an order?  It simplifies
implementation to do so.

> Further, the schema-centric viewpoint you describe is definitely not the 
> common usage for iterated choices, e.g., (a|b|...)*. In this case, no 
> order (or cardinality) are prescribed and the semantics is usually that 
> order is not significant.

XHTML is a massive counterexample: order is extremely significant, but
most content models are of exactly that form.

-- 
There is / One art                      John Cowan <jcowan@r...>
No more / No less                       http://www.reutershealth.com
To do / All things                      http://www.ccil.org/~cowan
With art- / Lessness                     -- Piet Hein

• References:
  • Re: RE : Comparison of Xml documents
    • From: Bob Foster <bob@o...>
  • RE: RE : Comparison of Xml documents
    • From: "Bob Wyman" <bob@w...>
  • Re: RE : Comparison of Xml documents
    • From: John Cowan <cowan@m...>
  • Re: RE : Comparison of Xml documents
    • From: Bob Foster <bob@o...>

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