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: Elisp function that performs numeric computations Date: Fri, 21 Jan 2022 12:51:40 +0100 Message-ID: <87sfthtigj.fsf@zoho.eu> References: <87czkoezg4.fsf@mbork.pl> Reply-To: Emanuel Berg Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="28907"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/29.0.50 (gnu/linux) To: help-gnu-emacs@gnu.org Cancel-Lock: sha1:81y/2tXrwvpv1mi/uE7y/njqKLY= Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Fri Jan 21 13:07:29 2022 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 1nAshU-0007Hi-SL for geh-help-gnu-emacs@m.gmane-mx.org; Fri, 21 Jan 2022 13:07:28 +0100 Original-Received: from localhost ([::1]:59900 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1nAshR-0003jO-ON for geh-help-gnu-emacs@m.gmane-mx.org; Fri, 21 Jan 2022 07:07:25 -0500 Original-Received: from eggs.gnu.org ([209.51.188.92]:44450) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nAsSO-0005HU-9m for help-gnu-emacs@gnu.org; Fri, 21 Jan 2022 06:51:52 -0500 Original-Received: from ciao.gmane.io ([116.202.254.214]:54650) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nAsSM-0003lV-Nl for help-gnu-emacs@gnu.org; Fri, 21 Jan 2022 06:51:52 -0500 Original-Received: from list by ciao.gmane.io with local (Exim 4.92) (envelope-from ) id 1nAsSK-0006qf-0s for help-gnu-emacs@gnu.org; Fri, 21 Jan 2022 12:51:48 +0100 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: 2.1.29 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:135470 Archived-At: fatiparty--- via Users list for the GNU Emacs text editor wrote: > (defun test (dcur dmax drpt) All programming: Name the function something that etc etc. Lisp: We don't name formal parameters the assembly language or C style ... give them short, but if possible complete names that are easy to read and write. When in doubt, give them a complete name that communicates what its purpose or intended use. > "Compute brace depth used for brace colouring." Doc string should have the formal parameter's names in BOLD in the order they come in the the function definition ... > (interactive) Assign the formal parameters with argument values (interactive "ndepth: \nntop: \nnrepeat: ") ^ eval me Use English in the prompt string, if the words feel to long see if they can be shortened in a natural way (here, e.g. dep, top, and rep) - the reason one avoids "max" is it also appears in as the function `max' ... > (let ( (n dcur) ) > (message "dcur <= dmax | Typeface: %d" n) > n) If there is no computation, renaming it ... why do you do that? You use it like this: (let*((side 2) (square (expt side 2) )) ... ;; use square here ) -- underground experts united https://dataswamp.org/~incal