Re: XHTML+RDFa and @lang

They do by inclusion, in that the datatype for @lang is the XHTML M12N 
datatype LanguageCode, which is based upon the XML Schema datatype 
language, which is inturn based upon BCP 47.


Misha Wolf wrote:
> Do both specs reference BCP 47?  If not, alignment is unlikely.
> 
> Misha
>  
> 
> -----Original Message-----
> From: public-rdf-in-xhtml-tf-request@w3.org
> [mailto:public-rdf-in-xhtml-tf-request@w3.org] On Behalf Of Shane
> McCarron
> Sent: 29 January 2009 18:21
> To: Tina Holmboe
> Cc: Dan Brickley; public-rdf-in-xhtml-tf.w3.org; XHTML WG
> Subject: Re: XHTML+RDFa and @lang
> 
> 
> 
> 
> Tina Holmboe wrote:
>> On 29 Jan, Dan Brickley wrote:
>>
>>> Couple of questions -
>>>
>>> 1. What to say about cases where @lang and @xml:lang have different
> content?
>>   That would be unfortunate. One would hope authors avoided doing
>>   something like it.
>>
>>   As for how to handle it ... would it not be logical to say that an
>>   HTML UA should take the @lang value as authoritative, and an XHTML
> UA
>>   should do the same with @xml:lang?
> 
> It would... except that we have no standing to say anything about how an
> 
> HTML UA behaves.  Of course that is how it would behave in the real 
> world.  The guidance to content authors is to ensure that these 
> attributes are always both declared and both have the same value if the 
> document is to be delivered to HTML and XHTML user agents.
> 
> I would probably be comfortable adding "When both attributes are present
> 
> on an element, authors SHOULD ensure they have the same value."  Would 
> that help?
> 

-- 
Shane P. McCarron                          Phone: +1 763 786-8160 x120
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