From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.devel Subject: Re: move_it_vertically_backward question Date: Wed, 15 Dec 2021 15:27:42 +0200 Message-ID: <831r2ej8vl.fsf@gnu.org> References: <87lf0pw78r.fsf.ref@yahoo.com> <87lf0pw78r.fsf@yahoo.com> <837dc8mue3.fsf@gnu.org> <874k7cuhv4.fsf@yahoo.com> <83lf0nl56t.fsf@gnu.org> <875yrrtiwj.fsf@yahoo.com> <837dc7l2pa.fsf@gnu.org> <87a6h2vf64.fsf@yahoo.com> <83ee6ek0nj.fsf@gnu.org> <87ee6etuil.fsf@yahoo.com> Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="4949"; mail-complaints-to="usenet@ciao.gmane.io" Cc: emacs-devel@gnu.org To: Po Lu Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Wed Dec 15 15:26:55 2021 Return-path: Envelope-to: ged-emacs-devel@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 1mxVF9-00012c-OQ for ged-emacs-devel@m.gmane-mx.org; Wed, 15 Dec 2021 15:26:55 +0100 Original-Received: from localhost ([::1]:38864 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mxVF7-00068s-Re for ged-emacs-devel@m.gmane-mx.org; Wed, 15 Dec 2021 09:26:53 -0500 Original-Received: from eggs.gnu.org ([209.51.188.92]:33780) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mxUKA-0004Ml-GT for emacs-devel@gnu.org; Wed, 15 Dec 2021 08:28:02 -0500 Original-Received: from [2001:470:142:3::e] (port=48704 helo=fencepost.gnu.org) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mxUKA-0006W7-3e; Wed, 15 Dec 2021 08:28:02 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=References:Subject:In-Reply-To:To:From:Date: mime-version; bh=SSuU2CoSsZBJR2/7De6LF/rfz+2zqZ5rt1J4h2kYeOo=; b=XGXAPkFUMvd0 nut/Rxb3J87pOUSgQ/GtZfpuq1t0YD5uNqUkCR+oDvh8LaNsQF+6hNETvjVQVubpvmykyymMAcLgj 4iVJIrdNsywSueXdj3A//wr2p8vU6hWIIi94WfpxD67+bL/IQNzu9vTdmdPPr4bPdEYBLSApOmvVP e4Y7Ktt07z67slXKg4vrvBrz2JFZj/xTJh9pRYqzNuBl3EJYSNy3DoKWM1zikRcF/QFmB8NtDvOl9 bXEv0fsRCRVeH19qqWnOCjwCZS04eZXspwZ7EuESjUTGddHBUkGsw2e7mu0t2UiDGDjuXyIt8s5R4 BkDjKC4ekiP0UgGWC8aeCQ==; Original-Received: from [87.69.77.57] (port=2108 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mxUK9-00029D-U7; Wed, 15 Dec 2021 08:28:02 -0500 In-Reply-To: <87ee6etuil.fsf@yahoo.com> (message from Po Lu on Wed, 15 Dec 2021 11:30:10 +0800) X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Original-Sender: "Emacs-devel" Xref: news.gmane.io gmane.emacs.devel:282044 Archived-At: > From: Po Lu > Cc: emacs-devel@gnu.org > Date: Wed, 15 Dec 2021 11:30:10 +0800 > > Eli Zaretskii writes: > > >> For example, if it has reached the beginning of the buffer, it doesn't > >> make any sense to move further back. > > > If you want to detect that, you need to test IT_CHARPOS (it). > > Something like what `IT_POS_VALID_AFTER_MOVE_P' does? No, just if (IT_CHARPOS (it) <= BEGV)