[lltx] patch for lualatex-math.lua
Wolfgang Jeltsch
wolfgang at cs.ioc.ee
Fri Aug 16 13:18:56 CEST 2013
Hi,
I see that the patched package has been uploaded to CTAN. Surprisingly,
it hasn’t gone into TeX Live. Does anyone know why?
Best wishes,
Wolfgang
Am Samstag, den 03.08.2013, 23:28 +0200 schrieb Philipp Stephani:
> Thanks for the patch; I've already merged Philipp Gesang's equivalent
> patch and will do a new release ASAP.
>
>
> 2013/8/3 Wolfgang Jeltsch <wolfgang at cs.ioc.ee>
> Hi Philipp,
>
> I don’t know if you have followed the recent discussion on
> lualatex-dev
> about an issue with the lualatex-math package.
>
> The code in lualatex-math.lua relies on unpack being a global
> variable,
> which was the case in Lua 5.1, but is not the case anymore in
> Lua 5.2.
> As a result, I get the following error when importing amsmath
> and
> lualatex-math in the same document:
>
> ! LuaTeX error
>
> .../texmf-dist/tex/lualatex/lualatex-math/lualatex-math.lua:46:
> attempt to call upvalue 'unpack' (a nil value)
> stack traceback:
>
> .../texmf-dist/tex/lualatex/lualatex-math/lualatex-math.lua:46:
> in function 'print_class_fam_slot'
> [string "\directlua "]:1: in main chunk.
> \__lltxmath_set_mathchar:NN ...\int_eval:n {`#2})}
>
> \scan_stop:
>
> Other Lua files (lualibs-basic-merged.lua, lualibs-lua.lua,
> and
> luaotfload-merged.lua) use the following code to work around
> this
> incompatibility between Lua 5.1 and Lua 5.2:
>
> if not table.unpack then
> table.unpack=_G.unpack
> elseif not unpack then
> _G.unpack=table.unpack
> end
>
> By adding this code to lualatex-math.lua at an appropriate
> place, I was
> able to fix the issue with lualatex-math and amsmath.
>
> I’ve attached a patch. Could this patch or some other fix for
> the
> problem please be incorporated into lualatex-math? Thank you.
>
> Best wishes,
> Wolfgang
>
>
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