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Re: Comments on HTML WG face to face meetings in France Oct 08

From: Maciej Stachowiak <mjs@apple.com>
Date: Tue, 18 Nov 2008 16:02:02 -0800
To: elharo@metalab.unc.edu
Cc: Boris Zbarsky <bzbarsky@MIT.EDU>, Ian Hickson <ian@hixie.ch>, "Henry S. Thompson" <ht@inf.ed.ac.uk>, public-html <public-html@w3.org>, www-tag@w3.org
Message-id: <FFEC628C-F4A1-477B-8E79-BF505D726E2D@apple.com>

On Nov 18, 2008, at 8:13 AM, Elliotte Harold wrote:

> Maciej Stachowiak wrote:
>> (Of course, many of the conformance criteria relevant to mainstream  
>> browsers won't apply to other kinds of software. Fortunately, HTML5  
>> defines a number of conformance classes: <http://www.w3.org/html/wg/html5/#conformance-requirements 
>> >. The classes "data mining tool" and "markup generator" cover  
>> between them any tool that takes HTML as input or output, and are  
>> free of browser-specific concerns.)
> Sadly this isn't true. For instance, in data mining, "Applications  
> and tools that process HTML and XHTML documents for reasons other  
> than to either render the documents or check them for conformance  
> should act in accordance to the semantics of the documents that they  
> process."
> This statement indicates an underlying belief that semantics are  
> interoperable and that a document can in fact be said to have a  
> particular set of semantics which can be shared and transferred  
> between independent parties.
> Of course, I expect most data mining tools to more or less ignore  
> this statement and infer whatever set of semantics they need from  
> the syntax.

RFC2119 SHOULD means the requirement does not apply if there is any  
significant reason to do otherwise. For a search engine for instance,  
the fact that better results can be produced by often ignoring defined  
semantics would be a good enough reason.

  - Maciej
Received on Wednesday, 19 November 2008 00:02:48 UTC

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