I have a lot of printed content using a particular font, and I'm trying to extend localisation with latin-extended-a charsets, but the font I'm using doesn't support it (It's a TTF - using fontspec and XeLaTeX).
Of course finding a similar font is a backup option, but I wonder if it's possible to make TeX draw accents onto a font using some heuristic or best-fit guess?
Something like H\={e}llo
but for fonts that don't have ē - so maybe H\fit={e}llo
-like command is available?
Cheers,