From mboxrd@z Thu Jan  1 00:00:00 1970
Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail
From: Eli Zaretskii <eliz@gnu.org>
Newsgroups: gmane.emacs.help
Subject: Re: Possibly Weird Behavior Regarding First Lines Which are Invisible?
Date: Sun, 04 Feb 2024 15:42:17 +0200
Message-ID: <86a5og2vnq.fsf@gnu.org>
References: <1623180934.4325548.1706854404633.ref@mail.yahoo.com>
 <PH0PR84MB1360E253872F307DBAECC0B999422@PH0PR84MB1360.NAMPRD84.PROD.OUTLOOK.COM>
Mime-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 8bit
Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214";
	logging-data="16220"; mail-complaints-to="usenet@ciao.gmane.io"
To: help-gnu-emacs@gnu.org
Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Sun Feb 04 14:42:49 2024
Return-path: <help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org>
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 <help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org>)
	id 1rWcll-000414-7d
	for geh-help-gnu-emacs@m.gmane-mx.org; Sun, 04 Feb 2024 14:42:49 +0100
Original-Received: from localhost ([::1] helo=lists1p.gnu.org)
	by lists.gnu.org with esmtp (Exim 4.90_1)
	(envelope-from <help-gnu-emacs-bounces@gnu.org>)
	id 1rWclJ-0002ro-Ml; Sun, 04 Feb 2024 08:42:21 -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 <eliz@gnu.org>) id 1rWclH-0002rN-7j
 for help-gnu-emacs@gnu.org; Sun, 04 Feb 2024 08:42:19 -0500
Original-Received: from fencepost.gnu.org ([2001:470:142:3::e])
 by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256)
 (Exim 4.90_1) (envelope-from <eliz@gnu.org>) id 1rWclG-0002xg-Vk
 for help-gnu-emacs@gnu.org; Sun, 04 Feb 2024 08:42:18 -0500
DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org;
 s=fencepost-gnu-org; h=MIME-version:References:Subject:In-Reply-To:To:From:
 Date; bh=EI9yQo4rS6RMuzDTYb2E0mZzezaCFZfz8qEPXejldoQ=; b=fWvSmsFwPKhn0InjIFUP
 CUC8RuNLLalSgZjj8xmUbNThUBRKsKBSMydRGft7TVpjcoxD+mjUJ2mYoNqs0uvIKaOUqiCmrJJUu
 iajgCclxB/r1HeNIgZdW1bAv0nJTkmgE2tVb1MUmoDr3sTZGDj6UyO4bhg+zcWSujlDTugk38jpWA
 OPsyVkbO203KlJUWnomR1SU/3j2sePn4q83EEJsGGcotXO8JkgFBEynrSKkp1MS15i0T7Ueb3j3jo
 vb4xOmRv49cChUh1bVYvH2DbB5CfuWEw+5C7//nbL+OiAYYXJstI9q81Sk6qRDcE979xgYbCNrnBR
 Vcj0Oomr/HH8Nw==;
In-Reply-To: <PH0PR84MB1360E253872F307DBAECC0B999422@PH0PR84MB1360.NAMPRD84.PROD.OUTLOOK.COM>
 (message from Jaft on Fri, 2 Feb 2024 06:13:24 +0000 (UTC))
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 <help-gnu-emacs.gnu.org>
List-Unsubscribe: <https://lists.gnu.org/mailman/options/help-gnu-emacs>,
 <mailto:help-gnu-emacs-request@gnu.org?subject=unsubscribe>
List-Archive: <https://lists.gnu.org/archive/html/help-gnu-emacs>
List-Post: <mailto:help-gnu-emacs@gnu.org>
List-Help: <mailto:help-gnu-emacs-request@gnu.org?subject=help>
List-Subscribe: <https://lists.gnu.org/mailman/listinfo/help-gnu-emacs>,
 <mailto:help-gnu-emacs-request@gnu.org?subject=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:145878
Archived-At: <http://permalink.gmane.org/gmane.emacs.help/145878>

> Date: Fri, 2 Feb 2024 06:13:24 +0000 (UTC)
> From: Jaft <jaft.r@outlook.com>
> 
> So I have a buffer; let's say 9 lines. And I have a function which runs (previous-line) (beginning-of-line 1) and said function is bound to a key (let's say <up>).
> So I apply a text-property of 'invisible using (pos-bol) of the first line and (1+ (pos-eol)) in order to get the first line to disappear, like it's not even there.
> If I'm on line 3 and M-: my function, it does what I'd expect and (point) will return the (pos-bol) of the second line. But, if I execute my function by pressing <up> from line 3, (point) keeps returning back 1, the point of the beginning of line 1 rather than the point at the beginning of line 2.
> Is this expected behavior?

Yes, it is.  After you press <UP>, the automatic point-adjustment
moves point to before the invisible text.  If you want to disable
that, set global-disable-point-adjustment to a non-nil value.