From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Drew Adams Newsgroups: gmane.emacs.bugs Subject: bug#31067: 27.0.50; After-string hidden by subsequent invisible text Date: Fri, 6 Apr 2018 15:39:45 +0000 (UTC) Message-ID: References: <> <<8360562db3.fsf@gnu.org> > <<83zi2h22pu.fsf@gnu.org> > <<83tvsp1qkj.fsf@gnu.org> > <<83k1tk214a.fsf@gnu.org>> NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable X-Trace: blaine.gmane.org 1523029091 14494 195.159.176.226 (6 Apr 2018 15:38:11 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Fri, 6 Apr 2018 15:38:11 +0000 (UTC) Cc: 31067@debbugs.gnu.org To: Eli Zaretskii , Stefan Monnier Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Fri Apr 06 17:38:06 2018 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1f4TRC-0003ZB-Bj for geb-bug-gnu-emacs@m.gmane.org; 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Fri, 6 Apr 2018 15:39:50 GMT Original-Received: from abhmp0001.oracle.com (abhmp0001.oracle.com [141.146.116.7]) by aserv0121.oracle.com (8.14.4/8.13.8) with ESMTP id w36Fdld4010855; Fri, 6 Apr 2018 15:39:48 GMT In-Reply-To: <<83k1tk214a.fsf@gnu.org>> X-Priority: 3 X-Mailer: Oracle Beehive Extensions for Outlook 2.0.1.9.1 (1003210) [OL 16.0.4666.0 (x86)] X-Proofpoint-Virus-Version: vendor=nai engine=5900 definitions=8854 signatures=668697 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 suspectscore=0 malwarescore=0 phishscore=0 bulkscore=0 spamscore=0 mlxscore=0 mlxlogscore=925 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1711220000 definitions=main-1804060153 X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 208.118.235.43 X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.org gmane.emacs.bugs:144949 Archived-At: > You are talking about "covering" here, and I think this discloses the > mental bias in understanding how before- and after-strings work. > Unlike most other overlay properties, they do not supply any > attributes to the characters "covered" by the overlay. Instead, they > have effect only at two places: the beginning and the end points of > the overlay. Consequently, we check for them only when we are about > to display something at these two positions. And in this case, the > end point is invisible, so we never check any after-strings there. Sounds like that information is important for a user's mental model. Is it presented in the manual? If not, perhaps it should be.