From: Leo <sdl.web@gmail.com>
To: emacs-devel@gnu.org
Subject: `shell-command-on-region' behaviour changed
Date: Tue, 06 Apr 2010 14:50:35 +0100 [thread overview]
Message-ID: <xbai7hoky9jo.fsf@cam.ac.uk> (raw)
Hello all,
I have noticed blank *Shell Command Output* buffer appears frequently
for quite a while. I keep deleting it since it appears in almost every
buffer switching in ido.
This is due to shell-command-on-region no longer respects its
well-documented and established behaviour of deleting that output buffer
when there's no output. The document still says so by the way.
I think the documented behaviour is better.
`shell-command-on-region' and `shell-command' have more noninteractive
uses than interactive ones. Many emacs packages authors rely on this
behaviour by ignoring the output-buffer arg to shell-command. Due to
this change packages like dired (its dired-do-shell-command) starts
leaving a blank buffer. And the doc string already says *Shell Command
Output* is shared if output buffer is unspecified.
I am unclear about what use case the changed behaviour tries to cover.
But the change will be better if it only affects non-programming use of
shell-command/shell-command-on-region, i.e. by using a different
output-buffer for interactive use.
I only use M-! or M-| for simple shell scripting and I am only
interested in the output for that moment at least for 99% of the cases.
Leo
reply other threads:[~2010-04-06 13:50 UTC|newest]
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