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Re: Turtle and SPARQL 1.1 last call

From: Richard Cyganiak <richard@cyganiak.de>
Date: Wed, 20 Apr 2011 11:03:48 +0100
Cc: rdf-wg <public-rdf-wg@w3.org>
Message-Id: <211C6178-A9C1-4625-965F-7DF070998A0C@cyganiak.de>
To: Andy Seaborne <andy.seaborne@epimorphics.com>
Andy,

Thanks for the summary.

On 20 Apr 2011, at 09:38, Andy Seaborne wrote:
> 1/ bNode property lists.
> 
> [ :p 1 ; :q 2 ]
> 
> is valid SPARQL, including SPARQL 1.0
> 
> 
> 2/ A less frequent case is a free-standing lists and subject lists.
> 
> (1 2 3 4) .
> 
> SELECT * { (1 ?x 3 4) . }
> 
> SELECT * { (1 2) rdfs:comment "List" }
> 
> 
> 3/ Trailing dots
> 
> A final DOT is not required in SPARQL:
> 
> INSERT DATA { :s :p :o }
> 
> 
> 4/ Strings
> 
> Using ' and ''' for string quoting is legal in SPARQL.
> Because SPARQL queries can be embedded in programs, allowing a character that does not require programming language quoting is useful.
> 
> 
> 5/ Local part of prefix names can begin with a number.
> 
> This was a change made to SPARQL during the per-LC development phase due to user feedback.  Groups found that it was inconvenient in situations where all numeric identifiers from non-RDF data arose naturally
> 
> e.g.
> 
> employee:00154337

In all of these, with the possible exception of #3, Turtle should follow the SPARQL 1.0 decision, IMO.

For any of those, even if the Turtle TF should decide to deviate from SPARQL 1.0, I don't think any case can be made for SPARQL 1.1 having to change.

So personally I see the trailing decimal point issue as the only Turtle syntax question that affects SPARQL last call.

Best,
Richard
Received on Wednesday, 20 April 2011 10:04:17 GMT

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