From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: carlmarcos--- via Users list for the GNU Emacs text editor Newsgroups: gmane.emacs.help Subject: Re: Prefix Argument and optional argument Date: Tue, 5 Jul 2022 22:26:03 +0200 (CEST) Message-ID: References: Reply-To: carlmarcos@tutanota.com Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="38934"; mail-complaints-to="usenet@ciao.gmane.io" Cc: Help Gnu Emacs To: Bruno Barbier Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Tue Jul 05 22:27:46 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 1o8p97-000A12-Sz for geh-help-gnu-emacs@m.gmane-mx.org; Tue, 05 Jul 2022 22:27:45 +0200 Original-Received: from localhost ([::1]:51988 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1o8p96-0001dx-RN for geh-help-gnu-emacs@m.gmane-mx.org; Tue, 05 Jul 2022 16:27:44 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:58512) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1o8p7Z-0001do-Qd for help-gnu-emacs@gnu.org; Tue, 05 Jul 2022 16:26:09 -0400 Original-Received: from w1.tutanota.de ([81.3.6.162]:34650) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1o8p7W-00036I-Sc for help-gnu-emacs@gnu.org; Tue, 05 Jul 2022 16:26:09 -0400 Original-Received: from w3.tutanota.de (unknown [192.168.1.164]) by w1.tutanota.de (Postfix) with ESMTP id 7B8F6FBF91C; Tue, 5 Jul 2022 20:26:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; t=1657052763; s=s1; d=tutanota.com; h=From:From:To:To:Subject:Subject:Content-Description:Content-ID:Content-Type:Content-Type:Content-Transfer-Encoding:Cc:Cc:Date:Date:In-Reply-To:In-Reply-To:MIME-Version:MIME-Version:Message-ID:Message-ID:Reply-To:References:References:Sender; bh=av+1662xqkyBSkhnZW57n0C2Q1s1/aPqljotoedlRxA=; b=WkyF5WiZ2qc9J9AoWSkAIdeTm2MYo78vsl4N9CpYR1FRS3+rT1OCRue/Bu/uFCY5 squC9LMwLRg79OEPc9I5l35nWxFASBS02x1A5NePp8hQoktdp7WSm7DYd73OdLDlTFG FU6/wwByyB88mXAq/xW2EioLfnWC3URUuYOiobFDXsJSpLGP2EnQSH3dYcL8OWAQDzl KJVTY+iac+unqw2Z1TXqhgZMTzfNeNxnQqgDgkGEgnuc9c0fxxy5ERfgiOshQuAHqbO ZnHgMV/jFvyzwPw3Bkrx7jAEntTtXHepEfdIA2oBSCzBjl3s3V8uJjSLUUkWWDGo11Z mmYsq2cbRg== In-Reply-To: Received-SPF: pass client-ip=81.3.6.162; envelope-from=carlmarcos@tutanota.com; helo=w1.tutanota.de X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, HTML_MESSAGE=0.001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-Content-Filtered-By: Mailman/MimeDel 2.1.29 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:138317 Archived-At: Jul 5, 2022, 06:52 by brubar.cs@gmail.com: > carlmarcos--- via Users list for the GNU Emacs text editor > writes: > >> I am having difficulty figuring out any problems associated with the fol= lowing two functions. >> >> Can one safely call "M-x name", "C-u M-x name", "C-u 2 M-x name", where = name is either >> `poke' or `poke-opt'. >> >> (defun poke (prefix) >> =C2=A0 "TODO." >> =C2=A0 (interactive "P") >> ...) >> > > You should compile your code; Emacs will say: > > Warning: misplaced interactive spec: =E2=80=98(interactive P)=E2=80=99 > I did call `M-x byte-compile-file file' but did not get the warning you des= rcibe. >> >> (defun poke-opt (&optional prefix) >> =C2=A0 "TODO." >> =C2=A0 (interactive "P") >> ...) >> > > This version is OK. You can call it "M-x name", "C-u M-x name", "C-u 2 > M-x name"; wether it's safe or not depends on its body though ;-) > > Bruno > Have done as follows (defun poke (&optional prefix) =C2=A0 "TODO" =C2=A0 (interactive "P") =C2=A0 (cond =C2=A0=C2=A0 ((equal current-prefix-arg nil)=C2=A0=C2=A0 ; no C-u =C2=A0=C2=A0=C2=A0 (setq poke-name-mode 1)) =C2=A0=C2=A0 ((equal current-prefix-arg '(4))=C2=A0 ; C-u =C2=A0=C2=A0=C2=A0 (setq poke-name-mode 0) =C2=A0=C2=A0=C2=A0 (arktika-workbench)) =C2=A0=C2=A0 ((equal current-prefix-arg 1)=C2=A0=C2=A0=C2=A0=C2=A0 ; C-u 1 =C2=A0=C2=A0=C2=A0 (setq poke-name-mode 0) =C2=A0=C2=A0=C2=A0 (let* ( (name (read-from-minibuffer " Name: ")) ) =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 (arktika-workbench name))) ) ))