From: Stefan Monnier <monnier@iro.umontreal.ca>
To: poppyer@gmail.com
Cc: emacs-pretest-bug@gnu.org, 1653@emacsbugs.donarmstrong.com
Subject: bug#1653: 23.0.60; encoding system nil != no-conversion, is it deliberately?
Date: Sun, 21 Dec 2008 21:57:37 -0500 [thread overview]
Message-ID: <jwviqpc7we0.fsf-monnier+emacsbugreports@gnu.org> (raw)
In-Reply-To: <9ghc4y3wv8.fsf@nusnet-97-126.dynip.nus.edu.sg> (poppyer@gmail.com's message of "Sun, 21 Dec 2008 13:44:59 +0800")
> In emacs23, setting a encoding system to nil doesn't behaver the same
> as setting it to no-conversion.
> For example: (setq default-process-coding-system '(nil . utf-8))
> and (setq default-process-coding-system '(no-conversion . utf-8))
> have differenct effects on the following "call-process".
> Is this deliberately? is there any good reason?
> This setting will break quite a lot of 3rd party .el plugins
> (emms/unicad etc), which usually set
> xxxxxxxx-default-encoding-system's default value to nil.
Why would anybody use nil to mean `binary' aka `no-conversion' aka
`raw-text-unix'? In this context, nil should simply mean "the coding
system is not specified by this variable, so keep looking for other
clues to figure out which coding system to use".
Stefan
next prev parent reply other threads:[~2008-12-22 2:57 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-12-21 5:44 bug#1653: 23.0.60; encoding system nil != no-conversion, is it deliberately? poppyer
2008-12-22 2:57 ` Stefan Monnier [this message]
2008-12-22 4:23 ` poppyer
2008-12-22 12:35 ` Stefan Monnier
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