From: Stefan Monnier <monnier@iro.umontreal.ca>
To: help-gnu-emacs@gnu.org
Subject: Re: same data appears twice, interactive then function body
Date: Tue, 15 Dec 2020 21:44:34 -0500 [thread overview]
Message-ID: <jwvmtye79og.fsf-monnier+emacs@gnu.org> (raw)
In-Reply-To: 87y2hya6i1.fsf@zoho.eu
> Check out this code, how do you avoid having 80 appear twice?
> (defun insert-string-centered (string &optional width)
> (interactive
> (list (read-from-minibuffer "string: ")
> (string-to-number (read-from-minibuffer "width [80]: "))) )
> (let*((max (if (< 0 width) width 80))
> [...]
Here's my take on it:
(defun insert-string-centered (string &optional width)
(interactive
(list (read-from-minibuffer "string: ")
(string-to-number (read-from-minibuffer "width [80]: "))) )
(let*((max (if (< 0 width) width (+ 42 42 -4)))
[...]
Now the question is how to avoid having 42 appear twice, I guess,
Stefan
next prev parent reply other threads:[~2020-12-16 2:44 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-16 1:23 same data appears twice, interactive then function body Emanuel Berg via Users list for the GNU Emacs text editor
2020-12-16 2:44 ` Stefan Monnier [this message]
2020-12-16 4:02 ` Emanuel Berg via Users list for the GNU Emacs text editor
2020-12-16 4:16 ` 2QdxY4RzWzUUiLuE
2020-12-16 4:31 ` Emanuel Berg via Users list for the GNU Emacs text editor
2020-12-16 4:36 ` Emanuel Berg via Users list for the GNU Emacs text editor
2020-12-16 4:16 ` Jean Louis
2020-12-16 4:32 ` Emanuel Berg via Users list for the GNU Emacs text editor
2020-12-16 4:43 ` Yuri Khan
2020-12-16 5:19 ` Emanuel Berg via Users list for the GNU Emacs text editor
2020-12-18 14:50 ` Emanuel Berg via Users list for the GNU Emacs text editor
2020-12-18 16:35 ` Drew Adams
2020-12-18 18:15 ` Jean Louis
2020-12-18 18:09 ` Jean Louis
2020-12-20 4:45 ` Emanuel Berg via Users list for the GNU Emacs text editor
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