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Re: Elisp - Function returning a sequence of times
From: |
Jean Louis |
Subject: |
Re: Elisp - Function returning a sequence of times |
Date: |
Wed, 16 Dec 2020 11:01:19 +0300 |
User-agent: |
Mutt/2.0 (3d08634) (2020-11-07) |
* Emanuel Berg via Users list for the GNU Emacs text editor
<help-gnu-emacs@gnu.org> [2020-12-16 08:53]:
> Jean Louis wrote:
>
> > I am using external tools
>
> Me too, here is some zsh:
>
> https://dataswamp.org/~incal/conf/.zsh/time
>
> and a screenshot:
>
> https://dataswamp.org/~incal/pimgs/comp/clocks.png
Looks like prompt, is it? Huge calendar prompt. OK fine. Could be also
used to show upcoming appointments.
Emacs must have those date/time features and adding times
somewhere. But where?
(info "(elisp) Time Calculations")
time-add is a built-in function in ‘src/timefns.c’.
(time-add A B)
In the manual there is more references:
(let ((time (decode-time nil nil t))
(delta (make-decoded-time :month 2)))
(encode-time (decoded-time-add time delta)))
(make-decoded-time :hour 10 :minute 20) => (nil 20 10 nil nil nil nil nil nil)
This adds 360 seconds to current-time:
(time-add (current-time) 360)
(defun my-days (days)
"Returns seconds for days"
(* 24 3600 days))
(defun my-minutes (minutes)
"Returns seconds for minutes"
(* 60 minutes))
(my-minutes 35)
2100
(format-time-string "%H:%M" (current-time))
"10:57"
(time-add (current-time) (my-minutes 35))
(24537 50767 754967 229000)
(format-time-string "%H:%M" (time-add (current-time) (my-minutes 35)))
"11:33"
So adding works in plain Emacs.
What I do not know is how to convert 10:57 time to TIME format
like: (24537 50767 754967 229000)
And because function requires only time as hours and minutes, the
date would not matter.
Once that is found, how to convert any TIME:MINUTES to that TIME
format: (24537 50767 754967 229000) then it will be easy to make
function that adds minutes or specified hours or minutes to it
and produces a sequence.
Jean
- Re: let, let*, oh, why [was: Elisp - Function returning a list], (continued)
- Re: let, let*, oh, why [was: Elisp - Function returning a list], tomas, 2020/12/21
- RE: let, let*, oh, why [was: Elisp - Function returning a list], Drew Adams, 2020/12/21
- Re: let, let*, oh, why [was: Elisp - Function returning a list], tomas, 2020/12/21
Re: Elisp - Function returning a list, steve-humphreys, 2020/12/15
Re: Elisp - Function returning a list, steve-humphreys, 2020/12/16
Re: Elisp - Function returning a list, Jean Louis, 2020/12/16
Re: Elisp - Function returning a list, Emanuel Berg, 2020/12/16
Re: Elisp - Function returning a sequence of times,
Jean Louis <=
Re: Elisp - Function returning a sequence of times, steve-humphreys, 2020/12/16
Re: Elisp - Function returning a sequence of times, Joost Kremers, 2020/12/16
Re: Elisp - Function returning a sequence of times, steve-humphreys, 2020/12/16
Re: Elisp - Function returning a sequence of times, Michael Heerdegen, 2020/12/16
Re: Elisp - Function returning a list, Emanuel Berg, 2020/12/15