W3C home > Mailing lists > Public > public-rdfa-wg@w3.org > March 2011

Re: [URGENT] 2nd Last Call Issues

From: Ivan Herman <ivan@w3.org>
Date: Fri, 25 Mar 2011 18:28:05 +0100
Cc: RDFa WG <public-rdfa-wg@w3.org>
Message-Id: <D102B346-50BB-459E-B246-BBEB3A174BEE@w3.org>
To: Manu Sporny <msporny@digitalbazaar.com>
Manu,

On Mar 25, 2011, at 18:06 , Manu Sporny wrote:

> As explained here, there is an issue with XML+RDFa:
> 
> http://lists.w3.org/Archives/Public/public-rdfa-wg/2011Mar/0100.html
> 
> We need to make a number of proposals and resolve them as a working
> group in order to proceed to Last Call. This IS NOT a vote - it is a
> straw poll for consensus. We need at least 5 people in the RDFa WG to +1
> each of these items to proceed. If someone -1s any of these proposals,
> please explain why. We need to accomplish the following:
> 
> * Modify the processing rules to assume an about="" on the root
>   element.
> * Note that this decision overrules the decision we made yesterday.
> * Adjust the publication date to next Thursday - it would be kinda
>   jerk-y of us to ask W3C Pubs to only have one day to review our
>   request.
> 

If the decision can be taken today or tomorrow, then I do not see any problem with Tuesday. Implementing the decision is a simple editorial step, that can be done very quickly


> So here goes, make sure to +1/+0/-1 each proposal item:
> 
> ---------------------------------------------------------------------
> 
> PROPOSAL: The RDFa Core processing rules should be modified in a way
> that ensures that the root element assumes an about="" if no @about is
> specified. For example, the following text could accomplish this:
> 
> """
> In section 7.5, processing step 6, if no URI is provided by an @about
> attribute, then first check to see if the element is the root element.
> If it is, then act as if there is an empty @about present, and process
> it according to the rule for @about.
> 
> In section 7.5, processing step 7, if no URI is provided by an @about
> attribute, then first check to see if the element is the root element.
> If it is, then act as if there is an empty @about present, and process
> it according to the rule for @about.
> """

+1 


> 
> ---------------------------------------------------------------------
> 
> PROPOSAL: The decision to assume an empty @about="" on root elements
> overrides the decision made on March 24th 2010:
> http://www.w3.org/2010/02/rdfa/meetings/2011-03-24#resolution_2
> 

+1

> ---------------------------------------------------------------------
> 
> PROPOSAL: RDFa Core 1.1 and XHTML+RDFa 1.1 should be modified to include
> the empty @about="" on root elements decision and should then proceed
> into the 2nd Last Call with a publication date targeted at March 31st
> with a Last Call period of 3 weeks from the publication date.
> 

-1

There are two possibilities here, I am not sure which of the two you propose:

a) you propose to add something on @about="" on the root but no other modification; in this case the modification is superfluous. 
b) you propose to add something on @about and _remove_ the reference to <head> and <body>. In that case we create a backward compatibility issue. Indeed:

<html rel="q:r" resource="http://manu.com">
  <head>
    <meta property="a:b">aaaa</meta>
  </head>
</html> 

would, under the new rules, produce:

<base> q:r <http://manu.com> .
<http://manu.com> a:b "aaaa".

whereas, in RDFa 1.0, because there is an implicit about on the head, this would produce

<base> a:b "aaaa" .

Oops:-)

If the current text remains unchanged than, in RDFa 1.1, the triples to be produced would become:

<base> q:r <http://manu.com> .
<base> a:b "aaaa".

which is all right with backward compatibility, too.

As a consequence, my proposal is _not_ to touch the XHTML+RDFa document. It is ugly, but an unimportant corner case in practice.

Unfortunately, I take a flight early tomorrow morning. I *might* look at my mail later today.

Ivan




> ---------------------------------------------------------------------
> 
> Please respond to this e-mail immediately.
> 
> -- manu
> 
> -- 
> Manu Sporny (skype: msporny, twitter: manusporny)
> President/CEO - Digital Bazaar, Inc.
> blog: Payment Standards and Competition
> http://digitalbazaar.com/2011/02/28/payment-standards/
> 


----
Ivan Herman, W3C Semantic Web Activity Lead
Home: http://www.w3.org/People/Ivan/
mobile: +31-641044153
PGP Key: http://www.ivan-herman.net/pgpkey.html
FOAF: http://www.ivan-herman.net/foaf.rdf






Received on Friday, 25 March 2011 17:28:32 UTC

This archive was generated by hypermail 2.4.0 : Friday, 17 January 2020 17:05:24 UTC