From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Jean Louis Newsgroups: gmane.emacs.help Subject: Re: Inspecting behaviour of `make-overlay', is this expected? Date: Sat, 24 Dec 2022 19:32:09 +0300 Message-ID: References: <83cz895has.fsf@gnu.org> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="20798"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Mutt/2.2.9+54 (af2080d) (2022-11-21) Cc: help-gnu-emacs@gnu.org To: Eli Zaretskii Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Sat Dec 24 17:37:01 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 1p97W8-0005BX-As for geh-help-gnu-emacs@m.gmane-mx.org; Sat, 24 Dec 2022 17:37:00 +0100 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1p97Vg-0003Fy-Kf; Sat, 24 Dec 2022 11:36:32 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1p97Vf-0003Fa-4Y for help-gnu-emacs@gnu.org; Sat, 24 Dec 2022 11:36:31 -0500 Original-Received: from stw1.rcdrun.com ([217.170.207.13]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1p97Vc-00025V-4B; Sat, 24 Dec 2022 11:36:30 -0500 Original-Received: from localhost ([::ffff:102.85.172.116]) (AUTH: PLAIN admin, TLS: TLS1.3,256bits,ECDHE_RSA_AES_256_GCM_SHA384) by stw1.rcdrun.com with ESMTPSA id 000000000005620F.0000000063A72A6D.000032C0; Sat, 24 Dec 2022 09:35:57 -0700 Mail-Followup-To: Eli Zaretskii , help-gnu-emacs@gnu.org Content-Disposition: inline In-Reply-To: <83cz895has.fsf@gnu.org> Received-SPF: pass client-ip=217.170.207.13; envelope-from=bugs@gnu.support; helo=stw1.rcdrun.com X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham 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-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.emacs.help:141928 Archived-At: x* Eli Zaretskii [2022-12-24 11:40]: > > Date: Sat, 24 Dec 2022 10:52:47 +0300 > > From: Jean Louis > > > > XXXXXXXXXX > > ^ > > | position 0 in buffer > > > > (setq my-overlay (make-overlay 0 10)) > > (get-buffer-window (overlay-buffer my-overlay)) > > (overlay-put my-overlay 'display "Hello") then I get: > > > > HelloX > > > > instead of "Hello" > > > > Is this normal behavior? > > Yes. The 10 part says that the overlay _ends_ before position 10. > This is standard Emacs behavior with text properties and overlays: END > means the first character NOT affected by the property/overlay. Good to know. -- Jean Take action in Free Software Foundation campaigns: https://www.fsf.org/campaigns In support of Richard M. Stallman https://stallmansupport.org/