Re: Format of -dshow-available-fonts output

[Urs Liska]

Am 25.07.2018 um 19:03 schrieb Werner LEMBERG:
> > It seems that LilyPond's fc-list does not search anything below
> > /usr/share/texmf, which is (I suppose) where TeX Live has installed
> > fonts. OTOH Debian's fc-list *does* search in
> > /usr/share/fonts/X11/Type1 where LilyPond finds the fonts I'm
> > currently looking at.
> Well, lilypond installs two fontconfig configuration files:
>
>    00-lilypond-fonts.conf
>    99-lilypond-fonts.conf
>
> It also adds lilypond's `.../fonts/otf' directory to fontconfig's
> search path (I'm too lazy to check whether it gets prepended or
> appended).
>
> Maybe this gives you further clues.

Unfortunately not.
The two "local" conf files only define a number of match fallback aliases.

I'm not sure at what point the fonts/otf directory of the installation 
is added or used, but I can't see this in the output of LilyPond's 
fc-list nor in the result of -dshow-available-fonts.

I have massaged the output of fc-list to only show the sorted list of 
directories. The resulting list is identical with the font directories 
list produced from lilypond -dshow-available-fonts:

* ~/.fonts (recursively)
* ~/.local/share/fonts
* /usr/local/share/fonts
* /usr/share/fonts (recursively)

The list produced by Debian's fc-list is identical but significantly 
adds a few entries:
* /usr/share/texmf/fonts/opentype/public/lm
* /usr/share/texmf/fonts/opentype/public/lm-math
* /usr/share/texmf/fonts/opentype/public/tex-gyre
* /usr/share/texmf/fonts/opentype/public/tex-gyre-math
* /usr/X11R6/lib/X11/fonts

So this is why Debian's fc-list finds the .otf versions of the TeX Gyre 
family while Lilypond's does not.

Still no clue what to *really* do about it. More and more I think I'll 
end up with a hack that will catch 90% of special cases.

>      Werner