W3C home > Mailing lists > Public > public-rdf-wg@w3.org > April 2011

Re: Comments on this afternoon session on Turtle (ISSUE-12)

From: Andy Seaborne <andy.seaborne@epimorphics.com>
Date: Mon, 18 Apr 2011 11:26:05 +0100
Message-ID: <4DAC11BD.5030901@epimorphics.com>
To: public-rdf-wg@w3.org


On 17/04/11 12:02, Ivan Herman wrote:
>
> On Apr 17, 2011, at 12:49 , Richard Cyganiak wrote:
>
>> On 17 Apr 2011, at 08:45, Ivan Herman wrote:
>>> My understanding is that rdf:plainLiteral is a Datatype (ie, it can be used as part of datatype reasoning in RDF, OWL, or RIF) which is not the case of plain literals,
>>
>> Yes.
>>
>>> and its value space[2] are pairs of the form<string,language-tag>
>>
>> Not quite. According to [2], the value space are all<string,lang-tag>  pairs *and* all strings.
>>
>>> Ie, datatype("chat"@en) would return rdf:PlainLiteral.
>>
>> This would be consistent with the definition of the datatype. But since the value space of rdf:PlainLiteral also contains all simple strings, the same could be said for returning
>>
>>    datatype("chat") == rdf:PlainLiteral
>
> Correct. Would that create huge problems?

Yes.  Existing queries will break.

	Andy

>
> Ivan
>
>
>>
>> Best,
>> Richard
>
>
> ----
> 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 Monday, 18 April 2011 10:26:40 GMT

This archive was generated by hypermail 2.3.1 : Tuesday, 26 March 2013 16:25:41 GMT