SPARQL 1.1 SUBSTR function syntax

[PaulZH]

TBCME 3.5.2

Following query
CONSTRUCT { <> dcterms:date ?date.}
WHERE {
BIND (xsd:string(now()) AS ?now)
BIND (SUBSTR(?now,1,10) AS ?date)
}

gives error
Encountered "(""(" at line 4, column 15. Was expecting regex.

The query works in Sesame and SPARQLer (ARQ).

[Bob DuCharme]

Hi Paul,

It works with ARQ 2.8.8, but not with ARQ 2.8.7, so it looks like it's one of the more recent SPARQL 1.1 functions to be supported there. Until TopBraid includes 2.8.8, fn:substring() works in your example. 

Bob

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[PaulZH]

Thanks, Bob.

On Jan 10, 3:22 pm, Bob DuCharme <bducha...@topquadrant.com> wrote:
> Hi Paul,
>
> It works with ARQ 2.8.8, but not with ARQ 2.8.7, so it looks like it's one
> of the more recent SPARQL 1.1 functions to be supported there. Until
> TopBraid includes 2.8.8, fn:substring() works in your example.
>
> Bob
>

[Scott Henninger]

Paul; In the meanwhile you can use fn:substring, which will give you
the same results.

SPARQL 1.1 is in its last call and therefore we may soon see
stabilization of the query language, update, etc. In terms of the
query language, the latest draft, January 5, 2012, includes STRBEFORE,
STRAFTER, REPLACE and a few other syntax changes. So it is still a
work in progress.

In light of these circumstances, we will evaluate whether to move to a
later version of ARQ for TBS 3.6 or wait until the SPARQL standard has
been released as a recommendation. We will keep users of the forum
apprised as we proceed.

-- Scott