Rich content section uses old chemml variable

[mattgarrish]

The variable setup still has:

LET chemical_formula_as_chemml be the result of calling check for node on package_document, /package/metadata/meta[@property="schema:accessibilityFeature" and text()="ChemML"].

But in the output checks it now uses a new undefined chemical_formula_as_mathml variable.

It looks like the above variable should now be:

LET chemical_formula_as_mathml be the result of calling check for node on package_document, /package/metadata/meta[@property="schema:accessibilityFeature" and normalize-space()="MathML-chemistry"].

[clapierre]

I think we need both right? Chemistry could be done in ChemML or done via MathML.

[mattgarrish]

Does anyone put ChemML into EPUB? You can't put it in natively like mathml tags and epub:switch has been deprecated for embedding other grammars.

I guess maybe you could embed a separate ChemML file using an object tag, but then you'd run into it being a foreign resource and needing a fallback.

[mattgarrish]

and needing a fallback.

At least some internal fallback within the object tag, I suppose.

[clapierre]

ok so for now I will ignore the ChemML feature and use just the MathML-chemistry.
If/when we ChemML makes it into EPUBs we can revisit.