From: Emanuel Berg via Users list for the GNU Emacs text editor <help-gnu-emacs@gnu.org>
To: help-gnu-emacs@gnu.org
Subject: Re: count char in string [The Emacs Challenge Competition - round 2, with fallout]
Date: Sun, 29 Nov 2020 04:44:13 +0100 [thread overview]
Message-ID: <87tut8hlo2.fsf@zoho.eu> (raw)
In-Reply-To: CAJf-WoRgmjtDsQ1tVPqtx2UnfJ1rSaWhmo8ycM3mrqj9EwoBYQ@mail.gmail.com
Corwin Brust wrote:
>> You don't need the seq-into, just pass string directly to
>> seq-count.
>
> Oh -- nice, thanks Noam!
So this is the best solution, right?
(require 'seq)
(defun count-char-in-string (str char)
(seq-count (lambda (c) (= c char)) str) )
;; (count-char-in-string "Emacs skills kills" ?a) ; 1
;; (count-char-in-string "Emacs skills kills" ?A) ; 0
;; (count-char-in-string "Emacs skills kills" ?l) ; 4
https://dataswamp.org/~incal/emacs-init/count.el
--
underground experts united
http://user.it.uu.se/~embe8573
https://dataswamp.org/~incal
next prev parent reply other threads:[~2020-11-29 3:44 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-28 0:42 count char in string [The Emacs Challenge Competition - round 2, with fallout] Emanuel Berg via Users list for the GNU Emacs text editor
2020-10-28 8:04 ` Corwin Brust
2020-10-28 17:19 ` Noam Postavsky
2020-10-29 1:15 ` Corwin Brust
2020-11-29 3:44 ` Emanuel Berg via Users list for the GNU Emacs text editor [this message]
2020-11-28 1:26 ` Emanuel Berg via Users list for the GNU Emacs text editor
2020-11-28 17:40 ` Benjamín Buccianti
2020-10-29 1:46 ` Benjamín Buccianti
2020-10-29 10:38 ` Stephen Berman
2020-10-29 16:13 ` Drew Adams
2020-10-29 13:53 ` Patrick McAllister
2020-10-29 17:52 ` Leo Butler
2020-10-29 22:44 ` Jean Louis
2020-10-30 11:09 ` Leo Butler
2020-10-30 11:36 ` Joost Kremers
2020-10-30 11:53 ` Jean Louis
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