Re: SPARUL & Turtle compatibility

Thanks for the link Andy,
it makes sense now.

Best,
Dimitris

On Tue, Sep 23, 2014 at 5:19 PM, Andy Seaborne <andy@seaborne.org> wrote:

> You can have \u in string literal in SPARQL -- it happens a different in
> SPARQL.
>
> \u processing is applied to the input char stream via
>    http://www.w3.org/TR/sparql11-query/#codepointEscape
>
> (it's this, not the Turtle way, for historical reasons i.e. compatibility
> with SPARQL 1.1)
>
>         Andy
>
>
> On 23/09/14 08:45, Dimitris Kontokostas wrote:
>
>> Hello,
>>
>> With the recent discussion on RDF/LD patching I looked on the SPARUL [1]
>> & Turtle [2] specs and was surprised to notice that they are not 100%
>> compatible.
>>
>> The difference I found was in the escaping of literal values where, in
>> turtle we are allowed to have unicode escaping while in SPARUL we are not
>>
>> Turtle [26]     |UCHAR| ::=     '|\u|' HEX
>> <http://www.w3.org/TR/turtle/#grammar-production-HEX> HEX
>> <http://www.w3.org/TR/turtle/#grammar-production-HEX> HEX
>> <http://www.w3.org/TR/turtle/#grammar-production-HEX> HEX
>> <http://www.w3.org/TR/turtle/#grammar-production-HEX> || |'|\U|' HEX
>> <http://www.w3.org/TR/turtle/#grammar-production-HEX> HEX
>> <http://www.w3.org/TR/turtle/#grammar-production-HEX> HEX
>> <http://www.w3.org/TR/turtle/#grammar-production-HEX> HEX
>> <http://www.w3.org/TR/turtle/#grammar-production-HEX> HEX
>> <http://www.w3.org/TR/turtle/#grammar-production-HEX> HEX
>> <http://www.w3.org/TR/turtle/#grammar-production-HEX> HEX
>> <http://www.w3.org/TR/turtle/#grammar-production-HEX> HEX
>> <http://www.w3.org/TR/turtle/#grammar-production-HEX>
>>
>>
>> This means we cannot just reuse turtle blocks inside insert/delete
>> SPARUL blocks without pre-processing. Am I correct or did I overlook
>> something?
>> In addition, does the aforementioned rule add anything in turtle besides
>> extra serialization options?
>>
>> Best,
>> Dimitris
>>
>> [1] http://www.w3.org/TR/sparql11-query/#rSTRING_LITERAL1
>> [2] http://www.w3.org/TR/turtle/#grammar-production-STRING_LITERAL_QUOTE
>>
>>
>> --
>> Dimitris Kontokostas
>> Department of Computer Science, University of Leipzig
>> Research Group: http://aksw.org
>> Homepage:http://aksw.org/DimitrisKontokostas
>>
>
>


-- 
Kontokostas Dimitris