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Re: Proposal for an improved `help-for-help'

From: Dmitry Gutov
Subject: Re: Proposal for an improved `help-for-help'
Date: Sat, 24 Apr 2021 19:44:26 +0300
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.7.1

On 24.04.2021 16:21, Stefan Kangas wrote:

That was 2 weeks ago.  Based on the feedback I received at the time, I
have now pushed my final version of this patch to master.

There is of course still time for further tweaks before Emacs 28.
I invite anyone to report bugs in case they can see any opportunities
for improving this.  (Feel free to CC me if you do as I'm currently not
subscribed to the bug list.)

Just checked it out. It's a significant improvement, thank you.

Two notes:

- I have 'C-h C-a' rebound to 'apropos' instead of 'apropos-command' locally. As a result, help-for-help shows 'M-x apropos-commnad' in the first column and (see also 'a') later.

The regression is that the previous version printed

  M-x apropos-command PATTERN

followed by 3 spaces, whereas the new one prints
  M-x apropos-commandTABSearch for commands (see also a)

and for some reason TAB is printed with zero width.

It's a minor thing, to be honest.

- Not a regression, old problem:

Instructions say "Type ..., or SPC or DEL to scroll".

But DEL here is actually <backspace>. If I just press Delete on the keyboard, help-for-help exits instead of scrolling.

And the target audience of help-for-help is probably at least as ignorant as myself about the difference between DEL and Delete.

Perhaps the easiest fix would be to handle Delete same as Backspace here.

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