> On 13 Oct 2021, at 22:34, Hans Hagen <j.ha...@xs4all.nl> wrote:
>
> On 10/13/2021 6:54 PM, Hans Åberg wrote:
>>> On 13 Oct 2021, at 18:37, Hans Hagen <j.ha...@xs4all.nl> wrote:
>>>
>>> On 10/13/2021 6:01 PM, Hans Åberg via ntg-context wrote:
>>>> I was suggested a long ago to hack the file
>>>>
>>>> /usr/local/texlive/2021/texmf-dist/tex/generic/context/luatex/luatex-math.tex
>>>> and use LuaTeX directly, now using Version 1.13.2 (TeX Live 2021), but I
>>>> get this error:
>>>> (./luaotfload.sty
>>>> (/usr/local/texlive/2021/texmf-dist/tex/latex/base/ltluatex.tex))
>>>> (./luatex-math-modified.tex[\directlua]:1: attempt to index a nil value
>>>> (global
>>>> 'arguments')
>>>> stack traceback:
>>>> [\directlua]:1: in main chunk.
>>>> l.132 }
>>>> ? …
>>>> It is from this segment in the modified luatex-math.tex:
>>>> \ifdefined\directlua
>>>> \directlua {
>>>> if arguments["mtx:lucidabright"] then
>>>> tex.print("\string\\lucidabright")
>>>> else
>>>> tex.print("\string\\latinmodern")
>>>> end
>>>> }
>>>> \fi
>>>> Is there a workaround? —I may ditch this setup in favour of using
>>>> 'context' directly, so it is not so important if there is no fix.
>>> I have no clue ..
>> Has not stuff been moved from LuaTeX to ConTeXt? —If so, I thought it might
>> have something with that to do.
>
> luatex is just a tex engine and context is a macro package where context mkiv
> is geared for luatex; the context fontloader has a generic core so it can be
> used in plain and for latex some write a wrapper around that font hndler for
> latex that evolved over years
>
> i have no clue why you get "(./luaotfload.sty ..." but it is not context that
> you run there (and i can't imagine some plain format loading it either)
I think that LaTeX extracted some parts out of ConTeXt for use with LuaTeX only
for font loading, and that is why I have it, not remembering the details. I
think I saw that LuaTeX a few years had more font loading stuff, but that was
moved to ConTeXt, but you show know better, as it would then would have been
you did it. :-)
>>> it looks like you load a latex style so I suppose that 'arguments' is no
>>> longer defined there (as it worked for you in the past).
>> It does not contain it; it a copy in the same directory that has never
>> changed.
>
> hm, but i have no clue what this "mtx:..." does
It is line 97-105 in
/usr/local/texlive/2021/texmf-dist/tex/generic/context/luatex/luatex-math.tex
I have not done anything to that part, just adding some support for the STIX
font.
>>> Maybe 'arguments' lives in some namespace?
>>>
>>> \directlua {for k, v in pairs(_G) do print(k,v) end}
>>>
>>> This will show you what is in the global namespace, maybe 'arg'?
>> If I put this code in right before the \ifdefined\directlua it prints a lot
>> of "nil".
>
> print(k,v) should print two values, key and value
I may have not used it right, just copying it in right above line 97.
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