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Re: A multi-step approach on defining object-orientednature of

• To: keith@w...
• Subject: Re: A multi-step approach on defining object-orientednature of DOM
• From: John Cowan <jcowan@r...>
• Date: Wed, 21 Aug 2002 10:57:40 -0400 (EDT)
• Cc: amyzing@t... (Amelia A Lewis), xml-dev@l...
• In-reply-to: <LEEOLHFCOBHIBMPBAGGCEEIEEKAA.keith@w...> from "Keith W. Boone" at Aug 21, 2002 10:45:01 AM

Keith W. Boone scripsit:

> 1.  Inheritance.  Namespace declarations in an element impose themselves
> upon the children without regard to whether those children want and/or need
> them.  When I put an attribute on an element, I mean for it to apply only to
> that element.

'When _I_ use a word,' Humpty Dumpty said in rather a scornful
tone, 'it means just what I choose it to mean--neither more nor
less.'

> 2.  Modelling.  Yeah, there's the InfoSet, then there's the DOM, and finally
> the parsing APIs.  Can any two agree on how exactly to represent the
> namespace data?

The DOM preceded the Infoset and had to deal with legacy issues plus the
(IMHO) will-o-the-wisp of a DOM-based XML editor.

> 3.  Purpose.  What problem does it solve?  Certainly not validation of
> documents which use multiple schemas.  At the time of XML Namespace
> publication, XML Schemas were just barely out of the gate of the standards
> development process.  So we had namespaces which would "allow" reuse of
> different schemas, but no way to validate a document using more than one.

Well, we sure have a way now.

-- 
John Cowan
        jcowan@r...
                I am a member of a civilization. --David Brin

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