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Re: Proposal to close ISSUE-71 [create datarange of literals matching given language range]

From: Peter F. Patel-Schneider <pfps@research.bell-labs.com>
Date: Mon, 08 Sep 2008 13:51:24 -0400 (EDT)
Message-Id: <20080908.135124.112737576.pfps@research.bell-labs.com>
To: boris.motik@comlab.ox.ac.uk
Cc: public-owl-wg@w3.org

From: "Boris Motik" <boris.motik@comlab.ox.ac.uk>
Subject: Proposal to close ISSUE-71 [create datarange of literals matching given language range]
Date: Mon, 8 Sep 2008 16:34:38 +0100

> 
> Hello,
> 
> ISSUE-71 asks to create a data range of literals matching a given
> language range. Since we are now officially using rdf:text, we
> could solve the problem by introducing a new facet called
> "langPattern". Thus, a restriction of rdf:text with the facet
> "langPattern" and value "val" would match to the set of all pairs of the
> form < "text" , "lang" > where "lang" matches the regular
> expression specified by "val".
> 
> In this way, one might say, for example, "the range of property P must
> be an English or a Spanish language string" as follows:
> 
> PropertyRange ( P DatatypeRestriction( rdf:text langPattern "en|es" ) )
> 
> 
> This is roughly how RIF will handle similar issues. In RIF, however,
> there are no facets yet (if I understood things correctly, they
> are using built-in functions). It is therefore currently unclear whether
> the definition of facets is actually going to be included
> into the rdf:text specification
> (http://www.w3.org/2007/OWL/wiki/InternationalizedStringSpec). To make
> progress, I suggest we add
> this facet to OWL 2 and close ISSUE-71. Depending on the outcome of the
> discussion with RIF, we may then transfer all facets of
> rdf:text to the rdf:text specification; however, this should be an
> independent issue.
> 
> Please let me know how you feel about this.
> 
> Regards,
> 
> 	Boris

Sounds good to me.

peter
Received on Monday, 8 September 2008 17:52:18 GMT

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