New versions of the HTML Vocabulary are released on GitHub.
For each released version of the HTML Vocabulary, we offer a special download for use in the external tools rdflib and pyShacl. This special download works around the following known limitations and known bugs in these external tools:
- No support for named graphs. Fix: change the TriG file into a Turtle file.
- No support for the default value of
group_concat()
, i.e. the space character. Fix: set the default value explicitly. - Low performance in RDFlib based scripts for datatype IRIs that are
rdf:HTML
. Workaround if performance is too low: changerdf:HTML
toxsd:string
in the SHACL rule for html fragment serialisation. Issue is caused by erroneous behavior of the html5lib package that is used by RDFlib.