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Exec help commands from other buffer (was bug#36767: 26.1; request: add

From: Arthur Miller
Subject: Exec help commands from other buffer (was bug#36767: 26.1; request: add more quick keys to the *Help* buffer)
Date: Mon, 27 Sep 2021 13:07:51 +0200
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux)

Eli Zaretskii <eliz@gnu.org> writes:

>> From: Arthur Miller <arthur.miller@live.com>
>> Cc: Juri Linkov <juri@linkov.net>,  larsi@gnus.org,  emacs-devel@gnu.org
>> Date: Fri, 24 Sep 2021 21:57:13 +0200
>> > Please, no unnecessary generalizations of this kind.  Or at least not
>> > to cater to this particular request.  I want a _help_ command, not
>> > just a prefix that runs any command in the other window.  because, for
>> > starters, what if the *Help* buffer is not currently on display at
>> > all?
>> Here is one updated without the unnecessary let statement.
> Thanks, but I'd prefer a prefix command, so that you wouldn't need to
> prompt for the key sequence, but expect the user to provide it
> already.  For example, "C-h M-h s" would show the definition of the
> function or variable.
> Also, the *Help* window should stay displayed, so any additional
> buffers the command needs to pop (for example, to show the definition)
> should not replace the *Help* buffer, it should pop in another window,
> exactly like when I invoke the command from the *Help* buffer.

Ok, with iput from Martin, and wish to have this as a command prefix, after some
doc reading and test and trys, here is another patch.

When help is not displayed, it silently does nothing, should some message  be
emitted in minibuffer?

Attachment: 0001-Run-help-mode-commands-form-any-buffer.patch
Description: Text Data

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