W3C home > Mailing lists > Public > public-rdfa@w3.org > May 2009

Re: HTML 4 Profile for RDFa

From: Julian Reschke <julian.reschke@gmx.de>
Date: Sat, 23 May 2009 20:56:03 +0200
Message-ID: <4A1846C3.7040506@gmx.de>
To: Shane McCarron <shane@aptest.com>
CC: Philip Taylor <pjt47@cam.ac.uk>, Sam Ruby <rubys@intertwingly.net>, RDFa Community <public-rdfa@w3.org>, "public-rdf-in-xhtml-tf.w3.org" <public-rdf-in-xhtml-tf@w3.org>, HTML WG <public-html@w3.org>
Shane McCarron wrote:
> Julian Reschke wrote:
>> It's clear that if RDFa is to be used with prefix declarations done 
>> with xmlns, then mixing uppercase and lowercase declarations is not 
>> going to work.
>> I think restricting prefixes to be lower-case (insert proper Unicode 
>> terminology here) would be acceptable; it's easy to live with, and 
>> avoids introducing yet another prefix declaration mechanism.
> I would not be opposed to adding text in the RDFa in HTML definition 
> like "prefix names SHOULD be defined in lower-case to help ensure 
> maximum portability among parsers, since it is common for DOM-based 
> parsers to not preserve the case of attribute names."
> I don't see there being any need to change the definition of XML-based 
> languages like RDFa for XHTML.  After all, in XML case is preserved.  Or 
> is ot someone's goal that documents be able to be parsed as EITHER XML 
> or HTML?  It's not my goal.  If I define a document using an HTML family 

I know Sam wants that. But if there's a simple way to achieve this, such 
as only using lower-case prefixes, that should be totally sufficient...

> ...

BR, Julian
Received on Saturday, 23 May 2009 18:56:55 UTC

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