Greetings --

I believe that it is generally considered "bad form", eventually
perhaps unacceptable with LaTeX 3, for a user to use raw TeX
commands in a LaTeX file.

Are there circumstances where it will be acceptable to use raw TeX
in the definition  argument of "\newcommand", "\renewcommand", or
"\providecommand", or in one of the definition arguments of
"\newenvironment"?

Thanks.

                                   -- Bill Hammond