good evening;
> On 2015-11-29, at 16:04, Andy Seaborne <a...@apache.org> wrote:
> […]
>
>> - what identifier does arq intend to us in the service description to
>> indicate its support
>> - as a matter of interoperability, is the elided graph case in the “complete
>> form” example really in instance of the grammar which appears later in the
>> document? given the example, this reader would have expected a production of
>> the form
>> ( 'GRAPH’ )? VarOrIri '{' TriplesTemplate? ‘}’
>
> i.e. "TriG-with-variables", rather than SPARQL Update quad blocks.
>
>> - which end does the elision serve?
>
> Thank you to Google for funding the work of Qihong Lin.
>
> Getting the project finished in time matters. GSoC projects are fixed length.
>
> It is also desirable for it to be a simple extension for everyone but it is
> not incremental to add and remain LL(1) AKA easy parsing (it's 3 separate
> additional local LL(2) changes I think); obviously it is possible to do
> convert LL(2) to LL(1) but it needs rewriting all the template rules, making
> it not a just local change in one rule.
in the interest of a minimal change, the most direct path would be a
single-line modification.
replace the existing
[73] ConstructTemplate ::= '{' ConstructTriples? ‘}’
with
[73] ConstructTemplate ::= '{‘ Quads? ‘}’
which reiterates the quad pattern from the insert syntax.
so far, "TriG-with-variables" does not convince that it would be worth the
effort.
specify the service description feature and you have something to target.
best regards, from berlin,
---
james anderson | ja...@dydra.com | http://dydra.com
