On Mon, Apr 11, 2022 at 8:16 PM Henri Menke <henri@henrimenke.de> wrote:Dear devs,
A control sequence that only contains a single null byte is not
correctly stringified. Comparison between Knuth TeX and LuaTeX:
$ tex test.tex
! \^^@.
l.2 \errmessage{\string\^^@}
$ luatex test.tex
! \.
l.2 \errmessage{\string\^^@}
MWE:
\catcode0=11
\errmessage{\string\^^@}
\bye
looking at it.