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bug#25665: 26.0.50; [PATCH] Indicate prefix arg in minibuffer prompt for
bug#25665: 26.0.50; [PATCH] Indicate prefix arg in minibuffer prompt for shell-command
Thu, 09 Feb 2017 23:16:07 -0500
Gnus/5.13 (Gnus v5.13) Emacs/25.2 (gnu/linux)
Tino Calancha <address@hidden> writes:
> On Thu, 9 Feb 2017, address@hidden wrote:
>> On Thu, Feb 9, 2017 at 11:53 AM, Tino Calancha <address@hidden> wrote:
>>> The meaning of the prefix argument must be explained in the docstring.
>>> That and the manual are the source of documentation, not the prompt.
>> But it's nice if Emacs gives you a different prompt, so that you can be
>> sure you typed in the command correctly.
> Confirmation for having typed C-u?
> Well, sometimes some keys in old keyboards die... ;-)
We already have that in `echo-keystrokes'.
But I'm thinking also of times when you do C-u M-! and then switch to
another window to copy the command, then maybe when you come back, you
don't remember 100% what you were doing.
>> Just like M-& gives a
>> different prompt from M-!, even though you could figure out the
>> different meaning just by reading the docstring of each command.
> These are different commands so its Emacs (and whatever editor)
> convention to how a different prompt. The OP suggests to use
> a different prompt for the same command w/ or w/o prefix.
M-& and M-! are practically the same command anyway, async-shell-command
is basically just
(defun async-shell-command (command)
(shell-command (concat command "&")))
> There are lots of commands in Emacs accepting a raw,
> numeric prefix etc. If we change M-! prompt, we might
> also want to tune the prompt for all of them. Do we want that?
IMO yes, if the difference can be summarized in the prompt concisely