> No matter what fancy things you do with superscripts and subscripts, you're not going to be able to do even basic things you need for equations like use a fraction bar, or parentheses that grow in height to match the content inside them.
Why not? Things like Arabic ligatures already do that, no?
That's the open source font shaping engine. It does a lot of work to handle font shaping and rendering for languages that can't really be reduced to characters.
Why not? Things like Arabic ligatures already do that, no?