Re: Fallback fonts in LaTeX export for non latin scripts

[Ihor Radchenko]

Juan Manuel Macías <maciaschain@posteo.net> writes:

> Finally I can upload some usable code here, in this case to be able to
> load and manage fonts for languages with non-Latin scripts, through
> babel and fontspec (in LuaLaTeX). It is an attempt to simplify from Org
> the multiform syntax of babel + fontspec. Of course, it is more limited,
> but for regular use I think it may be enough.

I can see that you did not add defaults for Chinese, which is one of the
problematic scripts for LaTeX. Can you add it?

> ;; #+LaTeX_Header: % !enable-fonts-for ancientgreek:Linux Libertine 
> O(Scale=MatchLowercase)
> ;; #+LaTeX_Header: % !enable-fonts-for 
> russian:FreeSerif(Numbers=Lowercase,Color=blue) :: arabic

I do not like this approach.
Would be more consistent to allow multiple languages in #+language +
#+LATEX_FONT keyword to optionally specify per-language font:

#+LANGUAGE: <main language> <other languages...>
#+LATEX_FONT[lang]: font

#+language: ancientgreek russian arabic
#+latex_font[ancientgreek]: "Linux Libertine O" Scale=MatchLowercase
#+latex_font[russian]: "FreeSerif" Numbers=Lowercase,Color=blue

Also, I think that it may still make sense to have some kind of fallback
font if the specified fonts are not sufficient. For example, when using
emoji symbols, which do not correspond to any language.

-- 
Ihor Radchenko // yantar92,
Org mode contributor,
Learn more about Org mode at <https://orgmode.org/>.
Support Org development at <https://liberapay.com/org-mode>,
or support my work at <https://liberapay.com/yantar92>