Hi Mico! ···<date: 2013-05-14, Tuesday>···<from: Mico Loretan>···
> Greetings!
>
> I'm running MacTeX2013 pre-release, on a system running MacOSX 10.7.5. I've
> installed all the latest packages via tlmgr through this morning. The header
> line from the .log file says:
>
> This is LuaTeX, Version beta-0.76.0-2013051018 (rev 4627)
> (format=lualatex 2013.5.12)
>
> Consider the following MWE; Garamond Premier Pro is a system font distributed
> with Macs:
>
> \documentclass{article}
> \usepackage{fontspec}
> \setmainfont[Ligatures={Common,Rare}]{Garamond Premier Pro}
> \begin{document}
> off fit fly office baffle
>
> act stab spoon
> \end{document}
>
> Since running the latest round of updates on all packages, neither the
> "common" ligatures (see the words in the first line after \begin{document}
> nor the "rare" ligatures (the following line) are being produced any longer.
> This problem also occurs if I use the font "Sabon Next LT Pro Regular".
>
> In contrast, if I use the font "EB Garamond" (a "free" opentype
> font(), the common ligatures are generated but *not* the rare
> ones.
“rare” is fontspec for “dlig”, which in EB Garamond -- though
defined -- does nothing in the text you are testing with.
> Finally, if I use "Latin Modern Roman", the common
> ligatures are also produced correctly; of course, Latin Modern
> doesn't feature "rare" ligatures, so I can't tell if the problem
> with rare ligatures not being produced extends to Latin Modern
> Roman...
>
> I've never experienced a problem like this before. Are there
> some font cache file I need to wipe out and rebuild, or is the
> problem seated at some deeper, darker level?
Yes. Your options include manually updating fontspec
https://github.com/wspr/fontspec or replacing
luaotfload-auxiliary.lua with this version:
https://raw.github.com/phi-gamma/luaotfload/master/luaotfload-auxiliary.lua
Btw. this is not a Luatex problem, so the Lualatex list would be
a more appropriate forum: http://tug.org/mailman/listinfo/lualatex-dev
Thanks for testing
Philipp
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