From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Jean Louis Newsgroups: gmane.emacs.help Subject: Re: same sound random sort everywhere (was: Re: avoid narrow-to-region (was: Re: replace-regexp)) Date: Fri, 21 May 2021 23:12:18 +0300 Message-ID: References: <87fsywtp3f.fsf@zoho.eu> <87bl9ktms2.fsf@zoho.eu> <875yzsrxd9.fsf@zoho.eu> <878s4o2gnu.fsf@zoho.eu> <87zgx40zqx.fsf@zoho.eu> <87eeeg0wkn.fsf@zoho.eu> <87v97cdm6c.fsf_-_@zoho.eu> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="2160"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Mutt/2.0.6 (2021-03-06) To: help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Fri May 21 22:18:22 2021 Return-path: Envelope-to: geh-help-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1lkBbC-0000Ik-5d for geh-help-gnu-emacs@m.gmane-mx.org; Fri, 21 May 2021 22:18:22 +0200 Original-Received: from localhost ([::1]:39674 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lkBbB-0004nC-4H for geh-help-gnu-emacs@m.gmane-mx.org; Fri, 21 May 2021 16:18:21 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:49706) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lkBan-0004n0-SF for help-gnu-emacs@gnu.org; Fri, 21 May 2021 16:17:57 -0400 Original-Received: from stw1.rcdrun.com ([217.170.207.13]:46159) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lkBal-0001Ho-VQ for help-gnu-emacs@gnu.org; Fri, 21 May 2021 16:17:57 -0400 Original-Received: from localhost ([::ffff:154.224.42.9]) (AUTH: PLAIN admin, TLS: TLS1.3,256bits,ECDHE_RSA_AES_256_GCM_SHA384) by stw1.rcdrun.com with ESMTPSA id 00000000000ADF02.0000000060A81571.0000513B; Fri, 21 May 2021 13:17:53 -0700 Mail-Followup-To: help-gnu-emacs@gnu.org Content-Disposition: inline In-Reply-To: <87v97cdm6c.fsf_-_@zoho.eu> Received-SPF: pass client-ip=217.170.207.13; envelope-from=bugs@gnu.support; helo=stw1.rcdrun.com X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Users list for the GNU Emacs text editor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: "help-gnu-emacs" Xref: news.gmane.io gmane.emacs.help:130008 Archived-At: * Emanuel Berg via Users list for the GNU Emacs text editor [2021-05-21 20:37]: > Here we see it implemented for strings. If the nshuff > algorithm is sound data type should - you guessed it - not > influence anything in either way to make it more or less > sound. See comments. > > ;;; -*- lexical-binding: t -*- > ;;; > ;;; this file: > ;;; http://user.it.uu.se/~embe8573/emacs-init/random-generic.el Not Found The requested URL /~embe8573/emacs-init/random-generic.el was not found on this server. > ;;; https://dataswamp.org/~incal/emacs-init/random-generic.el Found > (require 'cl-lib) For 1 single loop you download 26 kilobytes... ☻ > ;; add more datatypes here... (for each type, one disassembler, > ;; one call to nshuff, and one assembler is needed) That above I can understand somehow, but not this below, do you wish to expand it? (defun string-random (s) (let*((str-lst (string-to-list s)) (lst (nshuff str-lst)) (str-shuff (mapconcat (lambda (c) (char-to-string c)) lst "")) ) str-shuff) ) ;; (string-random "Elisp is my favorite E") ⇒ " ismitrEyaE lf oivpe s" (defun nshuff (sq) (cl-loop for i from (length sq) downto 2 do (cl-rotatef (elt sq (cl-random i)) (elt sq (1- i)) )) sq) ;; (nshuff '(a b c)) ; (b c a) (a b c) (b c a) ... Great, now you can make Black Jack win/loose simulator. -- Jean Take action in Free Software Foundation campaigns: https://www.fsf.org/campaigns Sign an open letter in support of Richard M. Stallman https://stallmansupport.org/