From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Joe Wells Newsgroups: gmane.emacs.bugs Subject: redisplay goes horribly wrong when a before-string contains multiple display properties Date: Tue, 18 Sep 2007 23:20:07 +0100 Message-ID: <867imnfwfc.fsf@macs.hw.ac.uk> NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Trace: sea.gmane.org 1190154025 24535 80.91.229.12 (18 Sep 2007 22:20:25 GMT) X-Complaints-To: usenet@sea.gmane.org NNTP-Posting-Date: Tue, 18 Sep 2007 22:20:25 +0000 (UTC) To: bug-gnu-emacs@gnu.org Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Wed Sep 19 00:20:23 2007 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([199.232.76.165]) by lo.gmane.org with esmtp (Exim 4.50) id 1IXlQV-0001r0-Uo for geb-bug-gnu-emacs@m.gmane.org; Wed, 19 Sep 2007 00:20:16 +0200 Original-Received: from localhost ([127.0.0.1] helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1IXlQS-0005dA-4D for geb-bug-gnu-emacs@m.gmane.org; Tue, 18 Sep 2007 18:20:12 -0400 Original-Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1IXlQP-0005ck-TL for bug-gnu-emacs@gnu.org; Tue, 18 Sep 2007 18:20:09 -0400 Original-Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1IXlQP-0005cK-As for bug-gnu-emacs@gnu.org; Tue, 18 Sep 2007 18:20:09 -0400 Original-Received: from [199.232.76.173] (helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1IXlQP-0005cH-7D for bug-gnu-emacs@gnu.org; Tue, 18 Sep 2007 18:20:09 -0400 Original-Received: from izanami.macs.hw.ac.uk ([137.195.13.6]) by monty-python.gnu.org with esmtps (TLS-1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.60) (envelope-from ) id 1IXlQO-0003aM-Nt for bug-gnu-emacs@gnu.org; Tue, 18 Sep 2007 18:20:09 -0400 Original-Received: from lxultra1.macs.hw.ac.uk ([137.195.27.173]:48811 helo=127.0.0.1) by izanami.macs.hw.ac.uk with smtp (Exim 4.51) id 1IXlQN-0004sf-Ep for bug-gnu-emacs@gnu.org; Tue, 18 Sep 2007 23:20:07 +0100 Original-Received: (nullmailer pid 7230 invoked by uid 1001); Tue, 18 Sep 2007 22:20:07 -0000 User-Agent: Gnus/5.11 (Gnus v5.11) Emacs/22.1 (gnu/linux) X-Detected-Kernel: Linux 2.6, seldom 2.4 (older, 4) X-BeenThere: bug-gnu-emacs@gnu.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Original-Sender: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.bugs:16568 Archived-At: Redisplay goes horribly wrong when a before-string contains multiple display properties. Reproduce by evaluating this expression: (let ((buf (get-buffer-create "foo"))) (with-current-buffer buf (display-buffer buf) (erase-buffer) (dolist (o (overlays-in (point-min) (point-max))) (delete-overlay o)) (insert "ABC") (let ((o (make-overlay 2 3)) (s (make-string 5 ?X))) (put-text-property 0 1 'display "1" s) (put-text-property 1 2 'display "2" s) (put-text-property 2 3 'display "3" s) (put-text-property 3 4 'display "4" s) (put-text-property 4 5 'display "5" s) (overlay-put o 'display "Y") (overlay-put o 'before-string s)))) The correct behavior would be to see the buffer =E2=80=9Cfoo=E2=80=9D pop up displaying the characters =E2=80=9CA12345YC=E2=80=9D. The horribly wrong b= ehavior that actually happens is that redisplay of the buffer stops completely after =E2=80=9CA1=E2=80=9D is shown. Strangely, the =E2=80=9CXXXXX=E2=80= =9D (which should not be displayed anywhere) will be displayed in the echo area. Scary errors start occurring if one tries to do work in the buffer after this. By the way, it would be really nice if this worked, because it would be an easy way to display a number of display specifications for a single overlay, which would make it much easier to get the features of AUCTeX's tex-fold.el to work together with the features of latex-preview. (What is needed is being able to display strings interleaved with images.) Joe =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D In GNU Emacs 22.1.1 (i686-pc-linux-gnu, GTK+ Version 2.8.20) of 2007-06-27 on artemis Windowing system distributor `The X.Org Foundation', version 11.0.70000000 configured using `configure '--prefix=3D/home/jbw/local2' '--enable-debug'= '--disable-nls' '--with-x-toolkit=3Dgtk' 'CFLAGS=3D-O0 -g3 -ggdb'' Important settings: value of $LC_ALL: nil value of $LC_COLLATE: nil value of $LC_CTYPE: en_US.UTF-8 value of $LC_MESSAGES: nil value of $LC_MONETARY: nil value of $LC_NUMERIC: nil value of $LC_TIME: jbw value of $LANG: nil locale-coding-system: utf-8 default-enable-multibyte-characters: t Major mode: Lisp Interaction Minor modes in effect: TeX-source-specials-mode: t auto-fill-function: do-auto-fill shell-dirtrack-mode: t outline-minor-mode: t desktop-save-mode: t url-handler-mode: t tooltip-mode: t mouse-wheel-mode: t menu-bar-mode: t file-name-shadow-mode: t global-font-lock-mode: t font-lock-mode: t blink-cursor-mode: t unify-8859-on-encoding-mode: t utf-translate-cjk-mode: t auto-compression-mode: t temp-buffer-resize-mode: t size-indication-mode: t line-number-mode: t transient-mark-mode: t