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Re: ISSUE-19: Should TURTLE allow triples like "[ :p 123 ]." as SPARQL does ?

From: Richard Cyganiak <richard@cyganiak.de>
Date: Fri, 1 Apr 2011 09:31:11 +0530
Cc: <ivan@w3.org>, <public-rdf-wg@w3.org>, <sysbot+tracker@w3.org>
Message-Id: <D4A3C130-F09F-4B4D-A35F-4C0F5DCF98AD@cyganiak.de>
To: Peter Frederick Patel-Schneider <pfps@research.bell-labs.com>
On 31 Mar 2011, at 17:57, Peter Frederick Patel-Schneider wrote:
> I don't see any inconsistency.  You appear to want to move something
> that is a node and put it in a place where a triple is expected?

[ <c> <d> ] is not a node. It is three nodes.

> Why should that work?

Why shouldn't it? It works in N3 and SPARQL.

> If this change is made, then constructions should also be so promotable.

What is a construction?

Richard




> 
> peter
> 
> 
> From: Ivan Herman <ivan@w3.org>
> Subject: Re: ISSUE-19: Should TURTLE allow triples like "[ :p 123 ]." as SPARQL does ?
> Date: Thu, 31 Mar 2011 07:22:01 -0500
> 
>> It does not fix technically. But there is an inconsistency in the language. It is
>> perfectly fine to say
>> 
>> <a> <b> [ <c> <d> ] .
>> 
>> ie, having the [ ... ] syntax defining a blank node with some triples, if I take this
>> out of the object position
>> 
>> [ <c> <d> ] .
>> 
>> then this is no longer valid. I must admit that was one of the most frequent error I
>> made in my early Turtle days...
>> 
>> Ivan
>> 
>> 
>> 
>> On Thu, March 31, 2011 12:09 pm, Peter Frederick Patel-Schneider wrote:
>>> From: RDF Working Group Issue Tracker <sysbot+tracker@w3.org>
>>> Subject: ISSUE-19: Should TURTLE allow triples like "[ :p 123 ]." as SPARQL does ?
>>> Date: Wed, 30 Mar 2011 10:33:10 -0500
>>> 
>>>> 
>>>> ISSUE-19: Should TURTLE allow triples like "[ :p 123 ]." as SPARQL does ?
>>>> 
>>>> http://www.w3.org/2011/rdf-wg/track/issues/19
>>>> 
>>>> Raised by:
>>>> On product:
>>> 
>>> I do not feel that this change fixes anything in TURTLE, so
>>> 
>>> -1
>>> 
>>> Peter F. Patel-Schneider
>>> Bell Labs Research
>>> 
>>> 
>> 
>> 
>> -- 
>> Ivan Herman, W3C Semantic Web Activity Lead
>> URL: http://www.w3.org/People/Ivan/
>> FOAF: http://www.ivan-herman.net/foaf.rdf
> 
Received on Friday, 1 April 2011 04:01:54 GMT

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