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From: "Pascal J. Bourguignon" <pjb@informatimago.com>
To: help-gnu-emacs@gnu.org
Subject: Re: If clause depending on name of the day
Date: Tue, 03 Apr 2012 23:03:34 +0200	[thread overview]
Message-ID: <87aa2sle8p.fsf@kuiper.lan.informatimago.com> (raw)
In-Reply-To: mailman.462.1333483518.20052.help-gnu-emacs@gnu.org

PJ Weisberg <pj@irregularexpressions.net> writes:

> On Tue, Apr 3, 2012 at 12:32 PM, Lars Ljung <lars@matholka.se> wrote:
>> "Sven Bretfeld" <sven.bretfeld@gmx.ch> writes:
>>> Is it possible to have an if-condition that looks for the current day?
>>> So that the then-expression does something different on Tuesday than on
>>> Friday?
>>
>> (nth 6 (decode-time)) returns 0-6 for Sunday-Saturday.
>
> So you could do something like this:
>
> (require 'cl)
> (case (nth 6 (decode-time))
>   (0
>    (message "Today is Sunday"))
>   ((1 3 5)
>    (message "Today is Monday, Wednesday, or Friday"))
>   (2
>    (message "Today is Tuesday"))
>   (t
>    (message "It's some other day.")))

(message "Today is %s" (aref ["Sunday" "Monday" "Tuesday" "Wednesday"
                               "Thirsday" "Friday" "Saturday"]
                             (nth 6 (decode-time))))
--> "Today is Tuesday"

-- 
__Pascal Bourguignon__                     http://www.informatimago.com/
A bad day in () is better than a good day in {}.


  parent reply	other threads:[~2012-04-03 21:03 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-04-03 19:16 If clause depending on name of the day Sven Bretfeld
2012-04-03 19:32 ` Lars Ljung
2012-04-03 19:57   ` Drew Adams
2012-04-03 20:05   ` PJ Weisberg
     [not found]   ` <mailman.462.1333483518.20052.help-gnu-emacs@gnu.org>
2012-04-03 21:03     ` Pascal J. Bourguignon [this message]
     [not found] <mailman.458.1333480607.20052.help-gnu-emacs@gnu.org>
2012-04-03 19:50 ` Pascal J. Bourguignon
2012-04-03 20:58   ` Sven Bretfeld

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