Tobias Schoel wrote:

[I]f it [(LaTeX)] assumes TeX by default, it
should provide a hook for other engines.

Why ?  New TeX-related engines could emerge at any time;
why is it the job of the LaTeX team to track these and
handle them gracefully ?  LaTeX is intended to work with
Knuth's TeX [1] as its engine; if it supports other engines,
then that is great, but the duty so to do cannot be
dumped on the LaTeX team.

Philip Taylor
--------
[1] Actually, I think it assumes e-TeX these days, but
not using LaTeX I cannot be sure.



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