Thanks a lot everybody ! Thank you all for the clarifying information! The problem has been solved using the command recommended by Pablo. All my attempts to clear the Windows font cache have failed, except for this one:  mtxrun --script cache --erase && mtxrun --generate I started by copying the fonts into the \texmf-fontes\data\ directory, then I emptied the cache. Then, the following command: mtxrun --script fonts --list --pattern=didot --all works and correctly returns otf and ttf theano and gfs fonts. And thanks to Andres : your MWE compiles perfectly ! Now, I must confess that I don't know why installing new fonts in c:\windows\fonts, even after laboriously purging the Windows font cache and reloading the CTX font cache, didn't have the expected effects ... Le 24/09/2023 à 07:50, Andres Conrado Montoya a écrit :

I did a test with Windows 10.

Installed a fresh copy from the garden, Got the GFS Didot font from Google Fonts, and installed it system-wide (C:\Windows\fonts). After that, I ran

mtxrun --script fonts --reload

Then tried the pattern suggested but did not work. However, then I tried a pattern without asterisks:

mtxrun --script fonts --list --pattern=didot --all

This returned the font:

C:\griego>mtxrun --script fonts --list --pattern=didot --all identifier           familyname    fontname filename                                   subfont instances

gfsdidot             gfsdidot      gfsdidotregular  c:/windows/fonts/GFSDidot-Regular.ttf gfsdidotnormal       gfsdidot      gfsdidotregular  c:/windows/fonts/GFSDidot-Regular.ttf gfsdidotregular      gfsdidot      gfsdidotregular  c:/windows/fonts/GFSDidot-Regular.ttf theanodidot          theanodidot   theanodidotregular c:/windows/fonts/TheanoDidot-Regular.ttf theanodidotnormal    theanodidot   theanodidotregular c:/windows/fonts/TheanoDidot-Regular.ttf theanodidotregular   theanodidot   theanodidotregular c:/windows/fonts/TheanoDidot-Regular.ttf

trying to render Pablo's example didn't work at first, but after i called the fonts with the name returned by mtxrun:

\mainlanguage[agr] \definefontfamily[mainface][rm][gfsdidot] \definefontfamily[mainface][ss][theanodidot] \setupbodyfont[mainface] \starttext GFS Didot:

\doloopoverlist{\tf, \it, \bf, \bi}   {\recursestring\input aristotle-grc\par}

\ss Theano Didot:

\input aristotle-grc \stoptext

Everything compiles correctly, and the font is used. Since it's only a single font file with no variants, you don´t get italics, bold etc. But the font is being used.

-- Andrés Conrado Montoya Andi Kú andresconrado@gmail.com http://sesentaycuatro.com http://messier87.com http://chiquitico.org ---------------------------------------- Los fines no justifican los medios, porque la medida verdadera de nuestro carácter está dada por los medios que estamos dispuestos a utilizar, no por los fines que proclamamos. ----------------------------------------

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