XML Literals in RDFa

[Kjetil Kjernsmo]

Hi Toby and all,

I've been thinking about my RDFa templating language, and the need for 
XMLLiterals in there. I've been working on top on Toby's great 
RDF::RDFa::Parser. 

When working on data, I find it most useful to have a the right objects 
to work on, so I would much prefer to have a XML::LibXML::Node returned 
from the parser, but since the RDFa spec is very clear about how such 
things should be serialised [1], Toby is doing the right thing. 

So, I figured this would be a good first discussion subject for this 
list, since the solution may also involve Greg's RDF::Trine :-)

The easiest way to go about, I suppose is to keep the parser as it is, 
and in any higher levels parse the serialised string again. 

But then, this is feels somewhat suboptimal, since RDF::RDFa::Parser 
uses XML::LibXML, and so the wanted node is likely (?) of the right 
type allready before serialising. 

Thus, I was wondering whether another callback function for XMLLiterals 
would be the best way to do it? What do you think, Toby? 

So, now that I've committed to RDF::Trine, RDF::Trine::Node::Literal 
doesn't use XML::LibXML::Node for the internal representation of an 
XMLLiteral, right? Should it?

If these things are reasonable, I could use the callback to add the 
XML::LibXML::Node to the model returned by RDF::RDFa::Parser::Trine, 
which would also be a good thing, spec-wise, I think.

[1] http://www.w3.org/TR/rdfa-syntax/#sec_5.5.

Cheers,

Kjetil
-- 
Kjetil Kjernsmo
Programmer / Astrophysicist / Ski-orienteer / Orienteer / Mountaineer
kjetil at kjernsmo.net
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