Owlready

Strings not escaped when saving as rdf/xml

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cseanor

Strings not escaped when saving as rdf/xml

Hi, I'm using Owlready2 to make an ontology where the data for creating instances comes from a CSV of strings. Some of these strings have quotes in them, or curly brackets. This causes problems when saving to RDF/XML because the strings are not escaped. Here's a minimal example so you can see what I mean:


import owlready2 as owl

if __name__ == "__main__":
    onto = owl.get_ontology("example")
    
    with onto:
        class Name(owl.Thing): pass

        instance = Name('John "The Nickname" Doe')
        onto.save(file="example.owl", format="rdfxml")

I can't embed the full example output because Nabble destroys it but the important part is that it produces a Name tag with rdf:about="#John "The Nickname" Doe" as an attribute, which isn't valid. I can get around this by escaping my own strings but ideally I think this would be done as part of the saving process. Thanks :)

cseanor

Re: Strings not escaped when saving as rdf/xml

Aaaand the line breaks in the python are gone, too. It looks like you get them back if you use the "quote" feature though.

Jiba

Re: Strings not escaped when saving as rdf/xml

Administrator

Hi,

The name of entity is part of the entity IRI, and many characters are forbidden in IRI, including " and breakline (however, ' is permitted).

If you want to store names with special characters, I recommend to use e.g. the label annotation, and not the name of the entity.

Jiba