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Re: Comments on this afternoon session on Turtle

From: Lee Feigenbaum <lee@thefigtrees.net>
Date: Thu, 14 Apr 2011 09:03:20 -0400
Message-ID: <4DA6F098.3000907@thefigtrees.net>
To: Eric Prud'hommeaux <eric@w3.org>
CC: antoine.zimmermann@insa-lyon.fr, Antoine Zimmermann <antoine.zimmermann@deri.org>, public-rdf-wg <public-rdf-wg@w3.org>
On 4/14/2011 8:54 AM, Eric Prud'hommeaux wrote:
> * Lee Feigenbaum<lee@thefigtrees.net>  [2011-04-14 07:25-0400]
>> On 4/14/2011 3:47 AM, Antoine Zimmermann wrote:
>>> Just a comment and what my votes would have been if I could have joined
>>> the session.
>>> ========
>>> PROPOSED: Mark xs:string as archaic for use in RDF, recommending use of
>>> plain literals instead. Recommend that systems silently convert
>>> xs:string data to plain literals.
>>> -1
>>> I always thought of plain literals as a written utterance in an
>>> unspecified language. This is not what xs:strings are. Strings are a
>>> sequence of characters, irrespective of any language. They cannot be
>>> translated or assigned a language tag. xs:string should be used for
>>> things like serial numbers, identifiers, passwords, etc.
>>> I would rather have plain literals with no language tags implicitly
>>> meaning xs:string (as Jean-Fran├žois proposed but it seemed unnoticed).
>>> xs:string is not defined by RDF anyway, I don't know why RDF should
>>> reject this particular XML datatype.
>>> If plain literals with no lang tag are implicitly typed with xs:string,
>>> then all literals have either a datatype or a language tag, which
>>> simplifies the manipulation of literals.
>> I agree with this point of view.
> Are there use cases which motivate having a special datatype to
> indicate that there's no possibility of a langtag? I recognize that
> this datatype comes for free from XSD, but we have an opportunity to
> encourage simplification.
> The premise I question is whether the additional diversity (and likely
> confusion) that comes of promoting both xsd:string and plain literal
> solves more problems than it creates.

I just think it's simpler and less weird to have datatyped literals and 
languaged literals and nothing else.


>> Lee
>>> =======
>>> PROPOSED: close ISSUE-18 by requiring digits after the decimal point, as
>>> in "18.0".
>>> PROPOSED: Allow dots inside local part and namespace part of qnames in
>>> Turtle, aligning with SPARQL syntax
>>> PROPOSED: Turtle should remain as a syntax only for Triples, some other
>>> syntax should be defined to represent quad data
>>> +1 to all of these.
Received on Thursday, 14 April 2011 13:03:56 UTC

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