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bug#24607: 25.1; comment-dwim doc is confused

From: Stefan Kangas
Subject: bug#24607: 25.1; comment-dwim doc is confused
Date: Tue, 11 Aug 2020 18:06:44 -0700
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux)

tags 24607 + wontfix notabug
close 24607

Noam Postavsky <npostavs@users.sourceforge.net> writes:

> "liu.huanjie@yahoo.com" <liu.huanjie@yahoo.com> writes:
>>    Today I try to write a function that call comment-dwim, it works
>> when I 'M-x comment-dwim', but when I call it as (comment-dwim), it
>> says wrong argument number, but after checking the doc and read the
>> source, I still can't figure out how to give args, which what I want
>> is the current line where my cursor is.
>>   I add 'nil' to 'comment-dwim' and fixed, but it will be better to
>> add something about what args should a caller give, and that will
>> not confused to at least elisp newbie, and it is better.
> The docstring says
>     (comment-dwim ARG)
>     [...]
>     Else if a prefix ARG is specified, call ‘comment-kill’.
> It's a bit terse, but `(elisp) Prefix Command Arguments' says
>    * `nil', meaning there is no prefix argument.
> as a possible value for prefix arguments.  I don't think we should
> explain that again in every function docstring which takes a prefix
> argument.

I agree with Noam here, we shouldn't repeat this information in every
function that takes a prefix argument.

I'm therefore closing this bug report.

Best regards,
Stefan Kangas

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