From: Kai Henningsen (kaih@khms.westfalen.de)
Date: Fri Jan 05 2001 - 09:01:00 CST
rra@stanford.edu (Russ Allbery) wrote on 31.12.00 in <yln1dbsyf2.fsf@windlord.stanford.edu>:
> Shmuel (Seymour J ) Metz <Shmuel@acm.org> writes:
>
> > I don't see how it could be read that way, but if you're really
> > worried then how about changing the wording to
>
> > Posters SHOULD avoid using control characters in the CCSs
> > specified by the Content-Type header (US-ASCII if not specified)
> > except for tab (ASCII 9), formfeed (ASCII 12), and backspace
>
> Does the concept of "control character" have a formal definition here?
> ESC is sometimes used to introduce a character set change; does that make
> it a control character?
Standardese is that ESC (1/11) is a control character. Stuff which starts
with ESC may be a control function, a control sequence, or a control
string, IIRC, depending on internal structure; I wouldn'tbe surprised if
there were even more options.
MfG Kai