Re: serious flaw of @c

[Karl Berry]

    And since comment removal works before macro expansion 

That's my belief too.  I'm pretty sure there is no way,
unfortunately.

    In my CJK package, I use character code 0x7F for various purposes
    since this is not used anywhere else, in no encoding.  

I didn't know that.  Cool!  Not even as a second/subsequent byte in
multibyte encodings?

The other problem is how to specify it.  I mean, sure, we can add the
\catcode, and then it will work literally, but that will render the
source file non-ASCII, which is a drag.

We could make ^^? work, since ^ is active anyway, but that's going to
turn into macro expansion again and presumably will have all the same
issues as @c does now.  Hmm.

    or a complete new way of designing macros?

This.

One goal I was thinking of was to make it possible to simply use \def in
the texinfo.tex implementation.  At least that would be robust.  But
newline handling just defeats me, as I said ...

thanks,
k