Robin Fairbairns a écrit :
you can't "put <x> in plain" -- plain is under knuth's licence, and if
you add to it/otherwise change it, you change the name.
so you build a new format for "plain" luatex, the source of which loads
plain.tex and then does its own thing.
this is the way pdftex and xetex deal with the matter; for example,
pdftex.ini is
\input pdftexconfig.tex
\input plain
\dump
\endinput
Ok, sorry for my wrong vocabulary... the question with the good words
would be (I think) to know if someone opposes the fact that luatex.ini
gets \input luatexconfig.tex added in it, with luatexconfig being
additional macros like \newattribute.
--
Elie