Div and Span attributes converting from .docx

[noamross]

I was wondering if there was any way to attach additional attribute or class information to text in Microsoft Word documents so that it would be picked up by the docx reader. My understanding is that Bookmarks as well as <sdt> elements are discarded. I think one could put information into custom style names, but as text can only have one style, this interferes with actually using them for styling purposes in the document.

I'm considering doing this by writing a pre-processor that changes Bookmarks or <sdt> elements to either custom styles or insertions, with data loaded into the style name or insertion author, which can then be handled in lua filters.