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: Error on `get-text-property` Date: Sun, 28 Nov 2021 17:46:29 +0100 Message-ID: <87o8645iu2.fsf@zoho.eu> References: 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="33150"; 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:OgliO2yqGQBUqX/UXu/CyK2KGwg= Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Sun Nov 28 17:47:01 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 1mrNKP-0008No-8U for geh-help-gnu-emacs@m.gmane-mx.org; Sun, 28 Nov 2021 17:47:01 +0100 Original-Received: from localhost ([::1]:38642 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mrNKO-0000Wz-Br for geh-help-gnu-emacs@m.gmane-mx.org; Sun, 28 Nov 2021 11:47:00 -0500 Original-Received: from eggs.gnu.org ([209.51.188.92]:51674) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mrNK5-0000Wk-20 for help-gnu-emacs@gnu.org; Sun, 28 Nov 2021 11:46:41 -0500 Original-Received: from ciao.gmane.io ([116.202.254.214]:53598) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mrNK2-0000k1-55 for help-gnu-emacs@gnu.org; Sun, 28 Nov 2021 11:46:40 -0500 Original-Received: from list by ciao.gmane.io with local (Exim 4.92) (envelope-from ) id 1mrNK0-0007t7-8u for help-gnu-emacs@gnu.org; Sun, 28 Nov 2021 17:46:36 +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:134706 Archived-At: guo.yong--- via Users list for the GNU Emacs text editor wrote: > From the backtrack, the error occured from `kill-append`. BTW `kill-append' is another one of these functions that end with something that can be t or nil, from the on-line help it says (kill-append STRING BEFORE-P) [...] If BEFORE-P is non-nil, prepend STRING to the kill instead One can instead make the last argument optional, it then defaults ot nil, instead of having ugly code that looks like this (kill-append "This doesn't look good" nil) where people have to check what that second argument nil really is ... -- underground experts united https://dataswamp.org/~incal