Improve handling of embedded HTML

[NSoiffer]

Based on what TeX is going to generate, MathCAT should handle the following HTML inside of leaf elements:

• span (just a wrapper and can be ignored)?
• em
• strong, b
• a (links)

For everything else, just use the contents.

[davidcarlisle]

seems reasonable place. The other thing to consider is, especially if mathml structure elements are used, what happens if there is a /Link structure element under mtext. In theory latex could generate an html namespace <a> link (as it does in the associated file version) but currently, it doesn't eg this pdf

nested-1-se.pdf

[NSoiffer]

That is a problem for all the tags within the structure. I don't think I have access to the HTML mappings (although I could add them). I'll ask Roman to see what he thinks about using the HTML mappings when delivering content. It sounded like Mathew H thought that HTML in MathML was appropriate. Maybe you can ask at the meeting on Thursday.