On 6/17/11 1:24 AM, Nicholas J Humfrey wrote: > Hello Dave, > > I do not believe that using custom XML entities in RDF/XML is very common - > or at least I havn't seen it for a long time.
That's true, but it is more common in schema and ontology tools > > I am also unaware of anything in libraptor to allow you to do this. That's correct. raptor would have to emit a DTD subset block before the <rdf:RDF> root element too. It's actually not too hard but would need a few new API calls to the serializer class and rdfxml serializer implementation and checks for emitting URIs in attribute values, which are done in a few places which would be straightforward to do . > > If it is of any help, Turtle is a lot more concise than RDF/XML. Although this is true, I think the better way to reduce data sizes of xml or general text formats is to use compression and then use streaming parsing via pipes: gunzip < bigfile.rdf.gz or popen(). Dave > > nick. > > > On 16 Jun 2011, at 14:00, David Phillips <[email protected]> wrote: > >> Hello. >> >> I'm trying to get my RDF to be as little bloated as possible. One way >> of doing this is by setting namespaces on the RDF serializer. But the >> XML namespace spec only covers XML elements and XML attribute names. >> It does not cover XML attribute values. That is, you can't use a >> qname in a context such as: >> >> <element attname="prefix:localname" /> >> >> However, I've come across XML documents (in particular, OWL >> ontologies) which have the following: >> >> <element attname="&prefix;localname" /> >> >> Instead of the prefix being defined with a namespace declaration it's >> defined with an entity declaration in the document's DOCTYPE. >> >> My question is: Is there any way of getting a librdf serializer to >> generate RDF with this sort of abbreviated attribute values? >> >> Thanks in advance! >> >> -Dave Phillips >> _______________________________________________ >> redland-dev mailing list >> [email protected] >> http://lists.librdf.org/mailman/listinfo/redland-dev > _______________________________________________ > redland-dev mailing list > [email protected] > http://lists.librdf.org/mailman/listinfo/redland-dev > _______________________________________________ redland-dev mailing list [email protected] http://lists.librdf.org/mailman/listinfo/redland-dev
