On Tue, Dec 10, 2019 at 10:36 PM Ulrike Fischer <ne...@nililand.de> wrote:
>
> Commands that should be use in token.set_macro must already exist.
> But while it is easy to predefine a command like \blub it seems not
> to be possible to do it with commands consisting of a \ with a
> non-letter.
>
perhaps
--[==[ luatest.lua ]==]
token.set_macro("foo",[==[\blub\csname !\endcsname]==])
%%test.tex
\tracingall
\def\!{[hallo!]}
\def\blub{[hallo]}
\directlua{require"luatest"}
\show\foo
\foo
\bye
(untested)
--
luigi
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