Re: serious flaw of @c

[Werner LEMBERG]

>     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?

No, neither in old legacy encodings like JIS X 0208 or Big5 nor in
UTF-8.

> 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.

Non-ASCII?  0x7F *is* part of ASCII since the very beginning!  It's
`DEL', basically intended as an input character.  If you edit or view
a file, you definitely see it.  Only if you do `cat foo', where file
foo contains 0x7F, the terminal might suppress the display of it.


      Werner