From: Jesper Harder <harder@myrealbox.com>
Subject: What does the coding system nil mean?
Date: Sat, 24 Jan 2004 23:13:38 +0100 [thread overview]
Message-ID: <m365f1571p.fsf@defun.localdomain> (raw)
(coding-system-p nil) => t
OK, so nil is a coding system.
But I can't find any documentation about what it means to supply nil
to functions that take a coding system (`encode-coding-string' etc.),
and `describe-coding-system' refuses to describe the nil coding
system.
Hmm, `encode-coding-string' promises to set `last-coding-system-used'
... yet if you supply nil, it doesn't change the previous value of the
variable.
So, can anyone explain what a nil coding system means?
next reply other threads:[~2004-01-24 22:13 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-01-24 22:13 Jesper Harder [this message]
2004-01-25 6:10 ` What does the coding system nil mean? Eli Zaretskii
[not found] ` <mailman.1298.1075010993.928.help-gnu-emacs@gnu.org>
2004-01-25 21:09 ` Jesper Harder
2004-01-26 6:08 ` Eli Zaretskii
[not found] ` <mailman.1343.1075097239.928.help-gnu-emacs@gnu.org>
2004-01-26 15:07 ` Stefan Monnier
2004-01-26 17:28 ` Eli Zaretskii
2004-01-27 15:22 ` Oliver Scholz
2004-01-27 16:33 ` Stefan Monnier
2004-01-26 15:20 ` Jesper Harder
2004-01-26 17:26 ` Eli Zaretskii
2004-01-27 14:44 ` Oliver Scholz
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