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Re: GRDDL

From: Henri Sivonen <hsivonen@iki.fi>
Date: Wed, 6 Aug 2008 13:35:18 +0300
Cc: Toby A Inkster <tai@g5n.co.uk>, Justin James <j_james@mindspring.com>, public-html@w3.org
Message-Id: <FB4355F1-7C5C-40E1-A9D1-3559FDE9AD72@iki.fi>
To: Julian Reschke <julian.reschke@gmx.de>

On Aug 6, 2008, at 12:47, Julian Reschke wrote:

> Henri Sivonen wrote:
>> On Aug 6, 2008, at 11:56, Julian Reschke wrote:
>>>> ...
>>>>>> I'm not sure if abusing HTML is the right characterization, but  
>>>>>> the GRDDL setup violates the The Rule of Least Power TAG Finding.
>>>>>> http://www.w3.org/2001/tag/doc/leastPower
>>>>>
>>>>> I'm not sure how using XSLT 1.0 violates that finding (please  
>>>>> elaborate);
>>>> XSLT is in a more powerful language category than (scriptless)  
>>>> HTML or any of the notations for RDF triples.
>>> > ...
>>>
>>> That's true. But how do you use RDF triples or scriptless HTML to  
>>> extract RDF out of (X)HTML?
>> You do this:
>>> - Document the mapping between the host language and RDF, do not  
>>> touch the host language, and have transformers for each of the  
>>> languages, triggered by contenttype/doctype/xmlnamespace.
>
> That doesn't scale.

It scales for the well-known Web markup languages: (X)HTML and SVG  
(and perhaps MathML and Atom). It also scales to common image and  
timed media formats that XSLT can't handle.

> It doesn't work with my homegrown vocabulary/markup style (remember:  
> distributed extensibility).

If you are serving a document in your vocabulary and a program that  
makes sense of it, are you really communicating with others by sending  
semantic markup or are you communicating by sending programs? If you  
made your markup empty and embedded all the data in the transformation  
program, would the recipient know any difference?

-- 
Henri Sivonen
hsivonen@iki.fi
http://hsivonen.iki.fi/
Received on Wednesday, 6 August 2008 10:36:02 GMT

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