SERVICE clause is not parsed

[djogopatrao]

The Service clause is specified on SPARQL 1.1 documentation [1]. However, when parsing any query specifiying this clause, the parser fails.

Code:

include_once('arc2-master/ARC2.php');
$parser = ARC2::getSPARQLParser();

$q= '
PREFIX foaf:   <http://xmlns.com/foaf/0.1/>
SELECT ?name
FROM <http://example.org/myfoaf.rdf>
WHERE
{
  <http://example.org/myfoaf/I> foaf:knows ?person .
  SERVICE <http://people.example.org/sparql> { 
    ?person foaf:name ?name . } 
}
';

$parser->parse($q);

yields the error Incomplete or invalid Group Graph pattern. Could not handle " SERVICE <http://people.exam"

[1] http://www.w3.org/TR/2012/PR-sparql11-federated-query-20121108/

[bnowack]

That's because ARC doesn't do SPARQL 1.1, just SPARQL+, which is a non-standardised extension of SPARQL 1.0. This is a "won't fix", I'm afraid.

[djogopatrao]

Hi

I just wrote a small patch to allow ARC to parse SERVICE statements, as well as subqueries (only SELECTs). What is the best way of contributing this code? as a plugin? or a fork?

[bnowack]

Hi,

If it's extending one of the core ARC files, then a pull request would be ideal.

Thanks,
Benji