GNU bug report logs - #32105
25.2; calendar-read-date should default to today

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Message #35 received at 32105-done <at> debbugs.gnu.org (full text, mbox):

From: Stefan Monnier <monnier <at> iro.umontreal.ca>
To: Lars Ingebrigtsen <larsi <at> gnus.org>
Cc: Glenn Morris <rgm <at> gnu.org>, 32105-done <at> debbugs.gnu.org,
 "Edward M. Reingold" <reingold <at> cs.uiuc.edu>, Boruch Baum <boruch_baum <at> gmx.com>
Subject: Re: bug#32105: 25.2; calendar-read-date should default to today
 [PATCH INCLUDED]
Date: Thu, 21 Jan 2021 00:41:57 -0500

I just pushed a patch which makes `calendar-read-date` default to today
for both the month and day of month, and it makes it use the `M-n`
instead of a non--empty minibuffer for the year as well.


        Stefan


Lars Ingebrigtsen [2019-06-24 22:42:31] wrote:

> Boruch Baum <boruch_baum <at> gmx.com> writes:
>
>> The function is inconsistent in that it uses function `calendar-read'
>> for the year and day values, but `completing-read' for the month value.
>> Should `calendar-read' behave like `completing-read'? Maybe it should
>> have additional optional arguments for everything required by
>> `completing-read', and then just call `completing-read'? Or just not use
>> `calendar-read' at all, and deprecate it?
>
> Hm...  well, calendar-read seems nice, since it validates the numbers...
>
>> If you `completing-read' -type behavior for entry of the year field, how
>> many history entries are you going to give the user? You could use
>> `history-length', like so:
>>
>> (let* ((n-year (calendar-extract-year (calendar-current-date)))
>>        (a-year (- n-year (/ history-length 2)))
>>        (z-year (+ n-year (/ history-length 2))))
>>   (number-sequence a-year z-year))
>>
>> This has a disadvantage that for certain use-cases future years might
>> not make sense.
>
> I think just putting the current year in M-n is fine -- we don't have to
> mess with the history at all.
>
> That is, something conceptually like:
>
> (read-from-minibuffer "Year: " nil nil t nil "2019")
>
> Then 2019 is in M-n and can be edited, and just hitting RET will also
> return 2019.

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