From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED.blaine.gmane.org!not-for-mail From: Akkana Peck Newsgroups: gmane.emacs.bugs Subject: bug#36227: 26.1; sgml-mode indents as comment inside of -- text blocks Date: Sat, 15 Jun 2019 12:02:18 -0600 Message-ID: <20190615180218.GC1232@shallowsky.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Injection-Info: blaine.gmane.org; posting-host="blaine.gmane.org:195.159.176.226"; logging-data="244674"; mail-complaints-to="usenet@blaine.gmane.org" User-Agent: Mutt/1.10.1 (2018-07-13) To: 36227@debbugs.gnu.org Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Sat Jun 15 20:03:10 2019 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([209.51.188.17]) by blaine.gmane.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.89) (envelope-from ) id 1hcD1C-0011VR-GU for geb-bug-gnu-emacs@m.gmane.org; Sat, 15 Jun 2019 20:03:10 +0200 Original-Received: from localhost ([::1]:34834 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.86_2) (envelope-from ) id 1hcD1B-00056F-F2 for geb-bug-gnu-emacs@m.gmane.org; Sat, 15 Jun 2019 14:03:09 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:37558) by lists.gnu.org with esmtp (Exim 4.86_2) (envelope-from ) id 1hcD15-00055r-Q9 for bug-gnu-emacs@gnu.org; Sat, 15 Jun 2019 14:03:05 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1hcD14-0005tl-Bk for bug-gnu-emacs@gnu.org; Sat, 15 Jun 2019 14:03:03 -0400 Original-Received: from debbugs.gnu.org ([209.51.188.43]:53871) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1hcD14-0005t3-6e for bug-gnu-emacs@gnu.org; Sat, 15 Jun 2019 14:03:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1hcD14-0007G8-1k for bug-gnu-emacs@gnu.org; Sat, 15 Jun 2019 14:03:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Akkana Peck Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sat, 15 Jun 2019 18:03:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: report 36227 X-GNU-PR-Package: emacs X-Debbugs-Original-To: bug-gnu-emacs@gnu.org Original-Received: via spool by submit@debbugs.gnu.org id=B.156062175827860 (code B ref -1); Sat, 15 Jun 2019 18:03:01 +0000 Original-Received: (at submit) by debbugs.gnu.org; 15 Jun 2019 18:02:38 +0000 Original-Received: from localhost ([127.0.0.1]:39180 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1hcD0e-0007FF-Jc for submit@debbugs.gnu.org; Sat, 15 Jun 2019 14:02:37 -0400 Original-Received: from lists.gnu.org ([209.51.188.17]:58548) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1hcD0c-0007F5-Cb for submit@debbugs.gnu.org; Sat, 15 Jun 2019 14:02:35 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:37339) by lists.gnu.org with esmtp (Exim 4.86_2) (envelope-from ) id 1hcD0a-00051G-Rw for bug-gnu-emacs@gnu.org; Sat, 15 Jun 2019 14:02:34 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1hcD0Z-0005M1-Ed for bug-gnu-emacs@gnu.org; Sat, 15 Jun 2019 14:02:32 -0400 Original-Received: from www.shallowsky.com ([71.19.149.191]:48294 helo=shallowsky.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1hcD0Z-0005I0-6D for bug-gnu-emacs@gnu.org; Sat, 15 Jun 2019 14:02:31 -0400 Original-Received: from shallowsky.com (unknown [97.123.107.255]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by shallowsky.com (Postfix) with ESMTPSA id 4EAFD12F658 for ; Sat, 15 Jun 2019 12:02:21 -0600 (MDT) Content-Disposition: inline X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] 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: 209.51.188.43 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:160627 Archived-At: In emacs -Q, edit a file in html-mode (derived from sgml-mode), e.g. visit /tmp/foo.html. M-x auto-fill-mode Type some nonsense words with ' -- ' in the middle, like this: asd shdf ladshjkl sjdk -- asdfh jklsdfh and keep typing until it wraps. sgml-mode will wrap adding unwanted extra dashes and indentations, like this: asd shdf ladshjkl sjdk -- asdfh jklsdfh jasdklf hjsdkl hjsdaklf sdf -- -- jkldsfhj kalshfjkasdlfh jaksd This happens because sgml-mode is confused about what constitutes a comment in sgml/html. At some point, someone clearly agreed that this was a bug and tried to fix it. If you look at the sgml.el source and search for --, you'll see comments like: > (defvar sgml-specials '(?\") > "List of characters that have a special meaning for SGML mode. > This list is used when first loading the `sgml-mode' library. > The supported characters and potential disadvantages are: > > ?\\\" Makes \" in text start a string. > ?\\=' Makes \\=' in text start a string. > ?- Makes -- in text start a comment. > > When only one of ?\\\" or ?\\=' are included, \"\\='\" or \\='\"\\=', as can be found in > DTDs, start a string. To partially avoid this problem this also makes these > self insert as named entities depending on `sgml-quick-keys'. > > Including ?- has the problem of affecting dashes that have nothing to do > with comments, so we normally turn it off.") The dash is not included in sgml-specials by default, but the problem affecting dashes that have nothing to do with comments happens anyway. Setting sgml-specials to nil in the mode hook doesn't help either. The problematic behavior seems to come from comment-line-break-function. One workaround I've found is to add this in my html-mode and sgml-mode hooks to prevent the special processing of line breaks inside comments: (kill-local-variable 'comment-line-break-function) Maybe comment-line-break-function should check sgml-specials and return without doing anything if - isn't one of the specials? In GNU Emacs 26.1 (build 2, x86_64-pc-linux-gnu, GTK+ Version 3.24.4) of 2019-02-03, modified by Debian built on zam904 Windowing system distributor 'The X.Org Foundation', version 11.0.12004000 System Description: Debian GNU/Linux 10 (buster) Recent messages: For information about GNU Emacs and the GNU system, type C-h C-a. Configured using: 'configure --build x86_64-linux-gnu --prefix=/usr --sharedstatedir=/var/lib --libexecdir=/usr/lib --localstatedir=/var/lib --infodir=/usr/share/info --mandir=/usr/share/man --enable-libsystemd --with-pop=yes --enable-locallisppath=/etc/emacs:/usr/local/share/emacs/26.1/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/26.1/site-lisp:/usr/share/emacs/site-lisp --with-sound=alsa --without-gconf --with-mailutils --build x86_64-linux-gnu --prefix=/usr --sharedstatedir=/var/lib --libexecdir=/usr/lib --localstatedir=/var/lib --infodir=/usr/share/info --mandir=/usr/share/man --enable-libsystemd --with-pop=yes --enable-locallisppath=/etc/emacs:/usr/local/share/emacs/26.1/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/26.1/site-lisp:/usr/share/emacs/site-lisp --with-sound=alsa --without-gconf --with-mailutils --with-x=yes --with-x-toolkit=gtk3 --with-toolkit-scroll-bars 'CFLAGS=-g -O2 -fdebug-prefix-map=/build/emacs-26.1+1=. -fstack-protector-strong -Wformat -Werror=format-security -Wall' 'CPPFLAGS=-Wdate-time -D_FORTIFY_SOURCE=2' LDFLAGS=-Wl,-z,relro' Configured features: XPM JPEG TIFF GIF PNG RSVG IMAGEMAGICK SOUND GPM DBUS GSETTINGS NOTIFY ACL LIBSELINUX GNUTLS LIBXML2 FREETYPE M17N_FLT LIBOTF XFT ZLIB TOOLKIT_SCROLL_BARS GTK3 X11 THREADS LIBSYSTEMD LCMS2 Important settings: value of $LC_COLLATE: C value of $LANG: en_US.UTF-8 locale-coding-system: utf-8-unix Major mode: Lisp Interaction Minor modes in effect: tooltip-mode: t global-eldoc-mode: t eldoc-mode: t electric-indent-mode: t mouse-wheel-mode: t tool-bar-mode: t menu-bar-mode: t file-name-shadow-mode: t global-font-lock-mode: t font-lock-mode: t blink-cursor-mode: t auto-composition-mode: t auto-encryption-mode: t auto-compression-mode: t line-number-mode: t transient-mark-mode: t Load-path shadows: None found. Features: (shadow sort mail-extr emacsbug message rmc puny seq byte-opt gv bytecomp byte-compile cconv cl-loaddefs cl-lib dired dired-loaddefs format-spec rfc822 mml easymenu mml-sec password-cache epa derived epg epg-config gnus-util rmail rmail-loaddefs mm-decode mm-bodies mm-encode mail-parse rfc2231 mailabbrev gmm-utils mailheader sendmail rfc2047 rfc2045 ietf-drums mm-util mail-prsvr mail-utils elec-pair time-date mule-util tooltip eldoc electric uniquify ediff-hook vc-hooks lisp-float-type mwheel term/x-win x-win term/common-win x-dnd tool-bar dnd fontset image regexp-opt fringe tabulated-list replace newcomment text-mode elisp-mode lisp-mode prog-mode register page menu-bar rfn-eshadow isearch timer select scroll-bar mouse jit-lock font-lock syntax facemenu font-core term/tty-colors frame cl-generic cham georgian utf-8-lang misc-lang vietnamese tibetan thai tai-viet lao korean japanese eucjp-ms cp51932 hebrew greek romanian slovak czech european ethiopic indian cyrillic chinese composite charscript charprop case-table epa-hook jka-cmpr-hook help simple abbrev obarray minibuffer cl-preloaded nadvice loaddefs button faces cus-face macroexp files text-properties overlay sha1 md5 base64 format env code-pages mule custom widget hashtable-print-readable backquote dbusbind inotify lcms2 dynamic-setting system-font-setting font-render-setting move-toolbar gtk x-toolkit x multi-tty make-network-process emacs) Memory information: ((conses 16 95390 8152) (symbols 48 20395 1) (miscs 40 45 93) (strings 32 28323 1158) (string-bytes 1 740749) (vectors 16 14651) (vector-slots 8 497220 10982) (floats 8 49 68) (intervals 56 262 0) (buffers 992 11))