如何将URI中的结尾字符从＃更改为/ <rdf:RDF xmlns=“”> -猫头鹰API

Question

I am using OWL API 4.0.1 and whenever I export OWL I end up with a hash at the end of a URI in the rdf:RDF xmlns section, example below.

 <rdf:RDF xmlns="http://www.example.com/example/Example#">

However I don't want the hash, I want to use the 303 URI separator of '/' from Cool URIs for the Semantic Web and look like:

 <rdf:RDF xmlns="http://www.example.com/example/Example/">

What would I need to do to change the trailing character from # to / in the rdf:RDF xmlns="" section?

Answer 1

The RDF/XML namespaces are used as prefixes in URIs in that particular serialization. Even if the empty namespace defined with xmlns="...#" happens to end with a # , it doesn't matter unless there's something in the document that actually uses the empty namespace. Eg, the following RDF/XML document has a namespace like the one that you describe:

<rdf:RDF
    xmlns="http://example.com/example#"
    xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
    xmlns:ex="http://example.com/example/">
  <ex:Thing rdf:about="http://example.com/example/Example"/>
</rdf:RDF>

That said, the document only has one triple, and neither of the "example" URIs have a # in them:

<http://example.com/example/Example> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://example.com/example/Thing> .

I'd suggest that you try writing out your model using the N-Triples serialization so that all the URIs are written out in full. Then you can do a plain text search for the problematic URI, ...# , and see whether it's actually occurring somewhere in the model or not. Just because it's defined as a prefix in the RDF/XML serialization doesn't mean that there's actually a URI starting with that prefix in the model.