Serialization of XDM

[Kurt Cagle]

I'm inclined to thing here that there are multiple issues hiding in the
question of serialization of XDM. Serialization of turtle node, as Evgeny
suggests, points to a non-XML syntax serialization. Similarly, consider a
simple sequence of values:

for $a in (1 to 5) return $a * 5

This cannot be serialized in XML notation at all in any meaningful way.
Personally I think that this is where output to sequence notation makes
sense:

(5,10,15,20,25)

which would also be consistent with an XQuery consumption model.

This is probably something worth talking to Dr. Michael Kay on, as he was
the editor of the XQuery/XSLT Serialization spec, but it would seem to me
that any XDM serialization should either resolve to a specific type'd
entity, a document node, a sequence of type'd entities or a sequence of
document nodes. This would hold true just as readily for the RDF/Turtle use
case; in an XQuery environment each assertion would be given either as a
text node() or, if supported, as a distinct item(), and the results of a
SPARQL query would then be a sequence of such nodes.

Kurt Cagle
Managing Editor
http://xmlToday.org


On Sun, Sep 13, 2009 at 11:56 PM, Evgeny Gazdovsky <http://x-query.com/mailman/listinfo/talk>wrote:

> What about RDF (any not XML notation) and SPARQL/xSPARQL?
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