[redland-dev] Round tripping rdfxml forgets xmlns

[Christopher Schmidt]

On Fri, Sep 22, 2006 at 05:37:36PM +0200, Sebastian Jansen wrote:
> Hi,
> 
> I'm using the latest Redland Perl -binding to develop an RDF to Topic Maps -
> Mapping Tool, which maps both standards semantically.
> 
> Although the mapping idea itself is quite clear, I'm struggling with a more
> Redland - related problem:

The RDF file below does not actually describe
http://xmlns.com/foaf/0.1/name , I believe: QNames are not expanded
inside rdf:about. Instead, you should include:

<rdf:Description rdf:about="http://xmlns.com/foaf/0.1/name" />

Or something simliar, based on my understanding of RDF.

> When I use the following RDF-XML file as an input:
> 
> semblog:~/development/RDFTM-Mapper # cat example.rtm
> <rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
>         xmlns:foaf="http://xmlns.com/foaf/0.1/"
>         xmlns:rtm="http://psi.ontopia.net/rtm/#">
> 
> <rdf:Description rdf:about="rdf:type">
>  <rtm:maps-to rdf:resource="rtm:instance-of"/>
> </rdf:Description>
> 
> <rdf:Description rdf:about="foaf:name">
>  <rtm:maps-to rdf:resource="rtm:basename"/>
> </rdf:Description>
> 
> </rdf:RDF>


-- 
Christopher Schmidt
Web Developer