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From: PJ Weisberg <pj@irregularexpressions.net>
To: help-gnu-emacs@gnu.org
Subject: Re: If clause depending on name of the day
Date: Tue, 3 Apr 2012 13:05:00 -0700	[thread overview]
Message-ID: <CAJsNXTnm1txmt=nyT5YPu4+roTSpjs=AwOqaVAM97Fc=1-n2MQ@mail.gmail.com> (raw)
In-Reply-To: <87limc6289.fsf@kvarnholmen.matholka.se>

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.")))

-PJ

Gehm's Corollary to Clark's Law: Any technology distinguishable from
magic is insufficiently advanced.



  parent reply	other threads:[~2012-04-03 20:05 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 [this message]
     [not found]   ` <mailman.462.1333483518.20052.help-gnu-emacs@gnu.org>
2012-04-03 21:03     ` Pascal J. Bourguignon
     [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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