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: Delete multiple repositories programmatically from elisp by supplying `y' as the answer to an interactively called function. Date: Wed, 08 Dec 2021 11:47:31 +0100 Message-ID: <87pmq7xtj0.fsf@zoho.eu> References: <87sfv4l50b.fsf@gmail.com> <87r1ao6xdn.fsf@zoho.eu> <875yrzqvq1.fsf@gmail.com> 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="12114"; 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:nUvMxHhLuanHeKdEzYzsNsH6R3E= Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Wed Dec 08 11:48:27 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 1muuUs-0002s1-Nx for geh-help-gnu-emacs@m.gmane-mx.org; Wed, 08 Dec 2021 11:48:26 +0100 Original-Received: from localhost ([::1]:54530 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1muuUr-0001RM-PD for geh-help-gnu-emacs@m.gmane-mx.org; Wed, 08 Dec 2021 05:48:25 -0500 Original-Received: from eggs.gnu.org ([209.51.188.92]:35434) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1muuUH-0001Qy-4y for help-gnu-emacs@gnu.org; Wed, 08 Dec 2021 05:47:49 -0500 Original-Received: from ciao.gmane.io ([116.202.254.214]:49886) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1muuUF-0005aF-36 for help-gnu-emacs@gnu.org; Wed, 08 Dec 2021 05:47:48 -0500 Original-Received: from list by ciao.gmane.io with local (Exim 4.92) (envelope-from ) id 1muuUB-0001v6-Av for help-gnu-emacs@gnu.org; Wed, 08 Dec 2021 11:47:43 +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: -15 X-Spam_score: -1.6 X-Spam_bar: - X-Spam_report: (-1.6 / 5.0 requ) BAYES_00=-1.9, HEADER_FROM_DIFFERENT_DOMAINS=0.25, 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:134891 Archived-At: Robert Pluim wrote: >>> (let ((current-prefix-arg '(4))) >>> (call-interactively #'straight-remove-unused-repos)) >> >> Why does it have to be used interactively? >> That's often not a good sign ... > > In this case it doesn't. Other commands inspect the value of > current-prefix-arg, not just the value produced by their > `interactive' spec, and then you have to use this > particular hammer. In the function body, in my experience it is best to refer to the formal parameter, if one desires a default value one can examine if it is unset and set it in a `let', then use the let binding. Do this before anything else happens ... Like below [last], it it works from Lisp without an argument, from Lisp with an argument, interactively without an argument, and interactively with a (prefix) argument. It is often less complicated tho ... like this (defun some-fun (&optional n) (interactive "P") (let ((num (or n 12))) (message "move it! %d" num) )) (some-fun) ; 12, the default (some-fun 10) ; 10 ;; C-u 7 M-x some-fun RET ; 7 ;; M-x some-fun RET ; 12, again Anyway ... ;;; -*- lexical-binding: t -*- ;;; ;;; this file: ;;; http://user.it.uu.se/~embe8573/emacs-init/string.el ;;; https://dataswamp.org/~incal/emacs-init/string.el (defun hline (&optional char) (interactive "P") (let ((len (- (window-width) (or (current-column) 0) 1)) (c (or (and (listp char) (car char)) (and (numberp char) char) ?-) )) (insert (make-string len c)) )) (defalias 'hl #'hline) (when nil (hline)---------------------------------------------------------------------- (hline 42)******************************************************************* (hline ?+)+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ M-x hline RET---------------------------------------------------------------- C-u C-u C-u M-x hline RET@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ C-u 59 M-x hline RET;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; ) -- underground experts united https://dataswamp.org/~incal