From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Emanuel Berg via Users list for the GNU Emacs text editor Newsgroups: gmane.emacs.help Subject: Re: avoid narrow-to-region (was: Re: replace-regexp) Date: Sun, 09 May 2021 17:13:28 +0200 Message-ID: <87eeeg0wkn.fsf@zoho.eu> References: <87tunf1mz5.fsf@zoho.eu> <87v97v6mxg.fsf@gnu.org> <87wnsaz9df.fsf@zoho.eu> <877dkaytwu.fsf@zoho.eu> <87eeegx25w.fsf_-_@zoho.eu> <87fsywtp3f.fsf@zoho.eu> <87bl9ktms2.fsf@zoho.eu> <875yzsrxd9.fsf@zoho.eu> <878s4o2gnu.fsf@zoho.eu> <87zgx40zqx.fsf@zoho.eu> Reply-To: Emanuel Berg 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="25693"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) To: help-gnu-emacs@gnu.org Cancel-Lock: sha1:hY7MtCTHsalfWfWRKiU6mT9XOpo= Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Sun May 09 17:16:17 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 1lflAG-0006YD-Gg for geh-help-gnu-emacs@m.gmane-mx.org; Sun, 09 May 2021 17:16:16 +0200 Original-Received: from localhost ([::1]:47744 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lflAF-0003Li-Hg for geh-help-gnu-emacs@m.gmane-mx.org; Sun, 09 May 2021 11:16:15 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:43436) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lfl96-0003LZ-Hz for help-gnu-emacs@gnu.org; Sun, 09 May 2021 11:15:04 -0400 Original-Received: from ciao.gmane.io ([116.202.254.214]:33816) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lfl95-0004M0-01 for help-gnu-emacs@gnu.org; Sun, 09 May 2021 11:15:04 -0400 Original-Received: from list by ciao.gmane.io with local (Exim 4.92) (envelope-from ) id 1lfl93-0004v0-OW for help-gnu-emacs@gnu.org; Sun, 09 May 2021 17:15:01 +0200 X-Injected-Via-Gmane: http://gmane.org/ Mail-Followup-To: help-gnu-emacs@gnu.org Mail-Copies-To: never Received-SPF: pass client-ip=116.202.254.214; envelope-from=geh-help-gnu-emacs@m.gmane-mx.org; helo=ciao.gmane.io X-Spam_score_int: -16 X-Spam_score: -1.7 X-Spam_bar: - X-Spam_report: (-1.7 / 5.0 requ) BAYES_00=-1.9, HEADER_FROM_DIFFERENT_DOMAINS=0.249, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no 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:129626 Archived-At: > Let's do it like this, if we can get the algorithm to work > on an arbitrary list, then all data-type issues can be > solved easily, by adding two functions, one disassembly > function that splits the data into a list, and one assembly > function that puts it back together, after the algorithm has > randomized it! > > So for example if the data is the string "data": > > 1. "data" -> '("d" "a" "t" "a") > 2. run the algorithm, get e.g '("a" "d" "t" "a") > 3. '("a" "d" "t" "a") -> "adta" > > Because Lisp is already based on the universal data > structure which can express all human knowledge, isn't it > possible that there is already a Lisp list randomizer that > fulfills even Yuri's most uncompromising demands? What about this? ;; https://stackoverflow.com/a/49505968 (require 'cl-lib) (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) ... Shufflepuck Café! -- underground experts united https://dataswamp.org/~incal