HTML Markup stripped from RDFa using datatype="HTML" on http://easyrdf.org/converter

[BigBlueHat]

For example:

<article typeof="schema:ScholarlyArticle" resource="#">
  <div property="schema:articleBody" datatype="rdf:HTML">
    <h1>Amazing Science!</h1>
    <p>...like...<strong>really</strong> amazing science!</p>
  </div>
</article>

results in:

@prefix schema: <http://schema.org/> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .

<http://njh.me/#>
  a schema:ScholarlyArticle ;
  schema:articleBody """
    Amazing Science!
    ...like...really amazing science!
  """^^rdf:HTML .

However, if the datatype is changed to rdf:XMLLiteral the markup is kept:

@prefix schema: <http://schema.org/> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .

<http://njh.me/#>
  a schema:ScholarlyArticle ;
  schema:articleBody """
    <h1>Amazing Science!</h1>
    <p>...like...<strong>really</strong> amazing science!</p>
  """^^rdf:XMLLiteral 

Not sure if this is a bug or a missing feature, but it would be super great to have it working. 😄

You can test the same RDFa markup in the Ruby Distiller to see the correct rdf:HTML Turtle output:
http://rdf.greggkellogg.net/distiller?command=serialize&format=rdfa&output_format=turtle

Let me know how I can help!
🎩

[BigBlueHat]

I renamed the topic to narrow the focus. This happens when using the http://easyrdf.org/converter which means this is probably the wrong repo...and I should file it over here https://github.com/njh/www.easyrdf.org/

That said, having the stripTags() feature seems to remove the value of using rdf:HTML datatype with this parser--which may throw out the markup. If that's what the person encoding the graph into RDFa wanted, they wouldn't have used the rdf:HTML datatype.

Thoughts?

[njh]

Yeah, this is a known missing feature. Implementing the whole of RDFa is hard!

[BigBlueHat]

Thanks for the reply!

@njh can you point me at what things still need doing for this?

There's renewing interest in RDFa (see also https://github.com/awwright/node-rdfa/), and I'd love to help get this (and other) tools closer to RDFa 1.1 Core compatibility.

[njh]

The RDFa test suite shows how much EasyRdf currently supports:
http://rdfa.info/test-suite/

But yes, I need to do a new release and deploy it to easyrdf.org.