ISSUE-137: Re: rdf language tag contraints

Hi Bart,

could you clarify your requirement:

1) Do you want to express that at least one of the values of a given 
property has a certain language tag?

2) Do you want to express that all values of a given property have a 
certain language tag?

On the question of usability, I assume you know that the example in 6.1 
is not how users would typically encounter this. SHACL has the extension 
mechanism that allows new high-level terms to be defined, even if they 
missed the boat of the current SHACL Core. It would then look like

ex:MyShape
     a sh:Shape ;
     sh:property [
         sh:predicate rdfs:label ;
         lang:hasValueWithLang "en" ;
     ] .

assuming that someone has published a corresponding constraint component 
as a library with the namespace prefix "lang:" (which would be quite 
trivial to do and would exploit the power of the web instead of 
delegating everything to a committee).

Thanks,
Holger


On 15/03/2016 7:51, Bart van Leeuwen wrote:
> Karen,
>
> I created ISSUE-137, mentioning ISSUE-35
> I guess this is the proper way to do it.
>
> Met Vriendelijke Groet / With Kind Regards
> Bart van Leeuwen
>
> ##############################################################
> # twitter: @semanticfire
> # netage.nl
> # http://netage.nl <http://netage.nl/>
> # Esdoornstraat 3
> # 3461ER Linschoten
> # tel. +31(0)6-53182997
> ##############################################################
>
>
>
> From: Karen Coyle <kcoyle@kcoyle.net>
> To: Bart van Leeuwen <bart_van_leeuwen@netage.nl>
> Cc: public-data-shapes-wg@w3.org, Arnaud Le Hors <lehors@us.ibm.com>
> Date: 14-03-2016 22:42
> Subject: Re: rdf language tag contraints
> ------------------------------------------------------------------------
>
>
>
> ISSUE-35 is closed. I think this needs to be a new issue, can refer to
> ISSUE-35 outcome, and the message is: add this functionality to the
> SHACL specification. (Arnaud, if this isn't the right procedure, pls
> advise.)
>
> kc
>
> On 3/14/16 1:45 PM, Bart van Leeuwen wrote:
> > I'll pick it up,
> >
> > it is still related to ISSUE-35 right ?
> >
> > Met Vriendelijke Groet / With Kind Regards
> > Bart van Leeuwen
> >
> > ##############################################################
> > # twitter: @semanticfire
> > # netage.nl
> > # http://netage.nl <http://netage.nl/><http://netage.nl/>
> > # Esdoornstraat 3
> > # 3461ER Linschoten
> > # tel. +31(0)6-53182997
> > ##############################################################
> >
> >
> >
> > From: Karen Coyle <kcoyle@kcoyle.net>
> > To: Bart van Leeuwen <bart_van_leeuwen@netage.nl>
> > Cc: public-data-shapes-wg@w3.org
> > Date: 14-03-2016 21:43
> > Subject: Re: rdf language tag contraints
> > ------------------------------------------------------------------------
> >
> >
> >
> > I believe we need an issue to make sure this gets discussed. I can
> > create that if you wish, or you can do it.
> >
> > kc
> >
> > On 3/14/16 9:17 AM, Bart van Leeuwen wrote:
> >  > Hi Karen,
> >  >
> >  > Thanks for the follow up, does this mean that a constrained in SHACL
> >  > should also be added ?
> >  >
> >  > Met Vriendelijke Groet / With Kind Regards
> >  > Bart van Leeuwen
> >  >
> >  > ##############################################################
> >  > # twitter: @semanticfire
> >  > # netage.nl
> >  > # http://netage.nl 
> <http://netage.nl/><http://netage.nl/><http://netage.nl/>
> >  > # Esdoornstraat 3
> >  > # 3461ER Linschoten
> >  > # tel. +31(0)6-53182997
> >  > ##############################################################
> >  >
> >  >
> >  >
> >  > From: Karen Coyle <kcoyle@kcoyle.net>
> >  > To: public-data-shapes-wg@w3.org
> >  > Date: 14-03-2016 15:44
> >  > Subject: Re: rdf language tag contraints
> >  > 
> ------------------------------------------------------------------------
> >  >
> >  >
> >  >
> >  > Bart, thanks. I followed up on the history and it was indeed voted to
> >  > become a requirement, but wasn't added. I will add it to the
> >  > requirements list in the UC&R.
> >  >
> >  > kc
> >  >
> >  > On 3/13/16 9:46 AM, Bart van Leeuwen wrote:
> >  >  > Hi All,
> >  >  >
> >  >  > Seeing all the productive discussions and positive vibe on the 
> list I
> >  >  > sat down and read the current Editors draft of SHACL [1]
> >  >  >
> >  >  > One of the things that strike me is that I cannot have a simple
> >  >  > constraint on a language tag.
> >  >  >
> >  >  > e.g. I need rdfs:label with '@en' for my application.
> >  >  >
> >  >  > I do see a example in the "Native Constraints" section [2] but 
> that
> >  >  > looks rather complex for my use case.
> >  >  > On the issue tracker I did find ISSUE-35 [3] which resolves in
> > allowing
> >  >  > constraints on the language tag.
> >  >  >
> >  >  > I tried searching the mailing list archive but 'Language' is so
> >  >  > ambiguous that it didn't help me answer this question from the
> > archive.
> >  >  >
> >  >  > Why is the use case mentioned in Issue 35 not there any more, and
> > why is
> >  >  > there no simple way constraint on the language of a literal?
> >  >  >
> >  >  > [1] http://w3c.github.io/data-shapes/shacl/
> >  >  > [2]
> > http://w3c.github.io/data-shapes/shacl/#an-example-native-constraint
> >  >  > [3] https://www.w3.org/2014/data-shapes/track/issues/35
> >  >  >
> >  >  > Met Vriendelijke Groet / With Kind Regards
> >  >  > Bart van Leeuwen
> >  >  >
> >  >  > ##############################################################
> >  >  > # twitter: @semanticfire
> >  >  > # netage.nl
> >  >  > # http://netage.nl <http://netage.nl/>
> > <http://netage.nl/><http://netage.nl/><http://netage.nl/>
> >  >  > # Esdoornstraat 3
> >  >  > # 3461ER Linschoten
> >  >  > # tel. +31(0)6-53182997
> >  >  > ##############################################################
> >  >
> >  > --
> >  > Karen Coyle
> >  > kcoyle@kcoyle.net http://kcoyle.net <http://kcoyle.net/>
> > <http://kcoyle.net/><http://kcoyle.net/>
> >  > m: 1-510-435-8234
> >  > skype: kcoylenet/+1-510-984-3600
> >  >
> >  >
> >  >
> >
> > --
> > Karen Coyle
> > kcoyle@kcoyle.net http://kcoyle.net 
> <http://kcoyle.net/><http://kcoyle.net/>
> > m: 1-510-435-8234
> > skype: kcoylenet/+1-510-984-3600
> >
> >
> >
>
> -- 
> Karen Coyle
> kcoyle@kcoyle.net http://kcoyle.net <http://kcoyle.net/>
> m: 1-510-435-8234
> skype: kcoylenet/+1-510-984-3600
>
>
>