- From: Toby Inkster <tai@g5n.co.uk>
- Date: Wed, 5 May 2010 14:48:46 +0100
- To: Peter Mika <pmika@yahoo-inc.com>
- Cc: Fabien Gandon <Fabien.Gandon@sophia.inria.fr>, Ivan Herman <ivan@w3.org>, David Recordon <recordond@gmail.com>, Dan Brickley <danbri@danbri.org>, "public-xg-socialweb@w3.org" <public-xg-socialweb@w3.org>, Tim Berners-Lee <timbl@w3.org>, Marie-Claire Forgue <mcf@w3.org>, Murray Maloney <murray@muzmo.com>, Richard Cyganiak <richard@cyganiak.de>, Raphaël Troncy <raphael.troncy@eurecom.fr>, "jacobi@csail.mit.edu" <jacobi@csail.mit.edu>, Bernard Vatant <bernard.vatant@mondeca.com>
On Sat, 01 May 2010 17:35:30 -0400
Peter Mika <pmika@yahoo-inc.com> wrote:
> Would you take a crack at it? In a similar fashion, an OGP to JSON
> mapping would be also highly desirable, otherwise implementations
> will diverge on the JSON serialization.
At http://srv.buzzword.org.uk/opengraph-to-json.html I do the following:
1. Parse the input document as RDFa;
2. Create a new, empty associative array called $RV.
3. Run a query equivalent to:
SELECT $predicate $object
WHERE {
<> $predicate $object .
FILTER(!isBlank($object))
}
4. For each row of results:
If $predicate is in the OGP namespace, trim the OGP namespace away;
If $RV[$predicate] is not defined, set it to an empty array;
If $RV[$object] is a URI, push it onto the array $RV[$predicate];
If $RV[$object] is a literal, push the plain value onto the array
$RV[$predicate].
5. Return $RV as JSON.
--
Toby A Inkster
<mailto:mail@tobyinkster.co.uk>
<http://tobyinkster.co.uk>
Received on Wednesday, 5 May 2010 13:50:32 UTC