From: Kevin Vigouroux via Users list for the GNU Emacs text editor <help-gnu-emacs@gnu.org>
To: help-gnu-emacs@gnu.org
Subject: Re: Find the longest word in the word list file.
Date: Thu, 12 Aug 2021 17:53:14 +0200 [thread overview]
Message-ID: <87h7fuy80l.fsf@laposte.net> (raw)
In-Reply-To: <874kbuk6oe.fsf@zoho.eu> (Emanuel Berg via Users list for the's message of "Thu, 12 Aug 2021 17:45:53 +0200")
Emanuel Berg via Users list for the GNU Emacs text editor
<help-gnu-emacs@gnu.org> writes:
> Kevin Vigouroux via Users list for the GNU Emacs text editor wrote:
>
>>> Here you go,
>>>
>>> (defun sort-lines-length (beg end)
>>> (interactive (if (use-region-p)
>>> (list (region-beginning) (region-end))
>>> (list (point-min) (point-max)) ))
>>> (save-excursion
>>> (save-restriction
>>> (narrow-to-region beg end)
>>> (goto-char (point-min))
>>> (sort-subr nil
>>> #'forward-line
>>> #'end-of-line
>>> nil nil
>>> (lambda (a b) (> (- (cdr a) (car a))
>>> (- (cdr b) (car b)) ))))))
>>> (defalias 'sll #'sort-lines-length)
>>>
>>> https://dataswamp.org/~incal/emacs-init/sort-incal.el lines 18-32
>>
>> How do we know that the “sort key” is a cons cell?
>
> I suppose #'forward-line (NEXTRECFUN) and #'end-of-line
> (ENDRECFUN) collectively define what is a record...
No, the manual only states that these functions move the point.
--
Best regards,
Kevin Vigouroux
next prev parent reply other threads:[~2021-08-12 15:53 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-10 23:14 Find the longest word in the word list file Hongyi Zhao
2021-08-11 1:51 ` [External] : " Drew Adams
2021-08-11 3:00 ` Hongyi Zhao
2021-08-11 6:46 ` tomas
2021-08-11 8:58 ` Hongyi Zhao
2021-08-11 10:03 ` tomas
2021-08-11 9:52 ` Arthur Miller
2021-08-11 10:06 ` tomas
2021-08-11 13:32 ` Hongyi Zhao
2021-08-11 13:58 ` Stephen Berman
2021-08-11 14:17 ` Hongyi Zhao
2021-08-11 14:27 ` Stephen Berman
2021-08-11 16:09 ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-08-12 2:10 ` Hongyi Zhao
2021-08-12 2:29 ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-08-12 3:13 ` Hongyi Zhao
2021-08-12 3:17 ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-08-12 3:34 ` Hongyi Zhao
2021-08-12 3:41 ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-08-12 3:52 ` Hongyi Zhao
2021-08-12 4:05 ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-08-12 4:25 ` Hongyi Zhao
2021-08-12 4:38 ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-08-12 4:53 ` Hongyi Zhao
2021-08-12 5:27 ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-08-12 6:25 ` Hongyi Zhao
2021-08-12 6:46 ` Hongyi Zhao
2021-08-12 6:51 ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-08-12 6:59 ` Hongyi Zhao
2021-08-12 2:53 ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-08-12 14:47 ` Kevin Vigouroux via Users list for the GNU Emacs text editor
2021-08-12 15:45 ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-08-12 15:53 ` Kevin Vigouroux via Users list for the GNU Emacs text editor [this message]
2021-08-12 16:10 ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-08-12 16:24 ` Kevin Vigouroux via Users list for the GNU Emacs text editor
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