From: jenia.ivlev@gmail.com (jenia.ivlev)
To: help-gnu-emacs@gnu.org
Subject: Re: writing ledger mode, date picker
Date: Sun, 08 Nov 2015 14:25:43 -0500 [thread overview]
Message-ID: <87egg0z420.fsf@gmail.com> (raw)
In-Reply-To: 87611did59.fsf@debian.uxu
Hello Emanuel.
I'm trying to write a program that will prompt the user for a
date and insert it into a buffer called "asti" ;)
I'm having some success but also some problems. My problem, I think, is
that I'm using the `(when...)` function wrong.
Here is the newest iteration of the program:
(defun insert-new-entry ()
(interactive)
(save-excursion
(goto-char (point-max))
(print "Asti")
(define-key calendar-mode-map (kbd "RET") 'get-date)
(calendar)
(when (calendar-cursor-to-date)
(let ((x (calendar-cursor-to-date)))
(select-window (get-buffer-window "asti" t))
(insert format-time-string "%Y-%m-%d" x)))))
(defun get-date ()
(interactive)
calendar-cursor-to-date)
The interpreter tells me, though, that `x` is nil basically: "Symbol's
value as a variable is void: format-time-string"
How do I execute this part AFTER the user has pressed "RET".
(let ((x (calendar-cursor-to-date))) <---- execute after "RET" pressed
(select-window (get-buffer-window "asti" t))
(insert format-time-string "%Y-%m-%d" x)))))
Thanks
P.S. To try my prog out, you need to open a buffer called asti by
doing `C-b 4 asti`.
next prev parent reply other threads:[~2015-11-08 19:25 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-11-07 20:30 writing ledger mode, date picker jenia.ivlev
2015-11-07 21:18 ` jenia.ivlev
2015-11-07 23:49 ` Emanuel Berg
2015-11-08 19:25 ` jenia.ivlev [this message]
2015-11-08 22:38 ` Emanuel Berg
2015-11-09 2:42 ` Yuri Khan
2015-11-09 3:45 ` Emanuel Berg
2015-11-09 4:35 ` jenia.ivlev
2015-11-08 0:47 ` Drew Adams
2015-11-08 19:37 ` jenia.ivlev
2015-11-09 5:39 ` jenia.ivlev
2015-11-10 1:15 ` Emanuel Berg
2015-11-10 1:22 ` Emanuel Berg
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