I am using a font that does not include italic characters. However, it does include characters like
mathematical italic small a, which I would like to use instead.
I can set up a display-table that maps a regular character
a to its mathematical italic counterpart
(let ((d (make-display-table))) (aset d ?a (vector ?𝑎)) (set-window-display-table nil d))
But I can't figure out how to use this display-table only for italic text.