bug#57851: 27.2; wrong indent for nXML and CDATA sections

[Ulrich Windl]

From: Ulrich Windl <Ulrich.Windl@rz.uni-regensburg.de>
To: bug-gnu-emacs@gnu.org
Subject: 27.2; wrong indent for nXML and CDATA sections
Date: Fri, 16 Sep 2022 09:35:59 +0200
Message-ID: <877d2393fk.fsf@>
--text follows this line--

When indenting https://github.com/sjvudp/draft-ntp-ntpv5, I noticed that
the CDATA sections were indented, too.
I think that's not correct:
Before:
        <artwork><![CDATA[
 0                   1                   2                   3
 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
...

After:
       0                   1                   2                   3
       0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
       +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
...


In GNU Emacs 27.2 (build 1, x86_64-suse-linux-gnu, GTK+ Version 3.24.31, cairo 
version 1.16.0)
Windowing system distributor 'The X.Org Foundation', version 11.0.12003000
System Description: openSUSE Leap 15.4

Recent messages:
No library nxml-mode.el in search path
Type C-x 1 to delete the help window, C-M-v to scroll help.
Mark saved where search started
Composing main Info directory...done
Mark saved where search started
next-line: End of buffer [2 times]
GNU Emacs 27.2 (build 1, x86_64-suse-linux-gnu, GTK+ Version 3.24.31, cairo 
version 1.16.0)
Making completion list...
delete-backward-char: Text is read-only [2 times]
Making completion list... [2 times]

Configured using:
 'configure --disable-build-details --with-pop --without-hesiod
 --with-gameuser=:games --with-kerberos --with-kerberos5
 --with-file-notification=inotify --with-modules --enable-autodepend
 --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info
 --datadir=/usr/share --localstatedir=/var --sharedstatedir=/var/lib
 --libexecdir=/usr/lib
 
--enable-locallisppath=/usr/share/emacs/27.2/site-lisp:/usr/share/emacs/site-lisp
 --with-x --with-xim --with-sound --with-xpm --with-jpeg --with-tiff
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 --with-x-toolkit=gtk3 --with-toolkit-scroll-bars
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 'LDFLAGS=-Wl,-no-pie -Wl,-O2''

Configured features:
XPM JPEG TIFF GIF PNG RSVG CAIRO SOUND DBUS GSETTINGS GLIB NOTIFY
INOTIFY ACL LIBSELINUX GNUTLS LIBXML2 FREETYPE HARFBUZZ M17N_FLT LIBOTF
ZLIB TOOLKIT_SCROLL_BARS GTK3 X11 XDBE XIM MODULES THREADS XWIDGETS
LIBSYSTEMD JSON PDUMPER LCMS2 GMP

Important settings:
  value of $LC_NUMERIC: POSIX
  value of $LANG: en_US.UTF-8
  value of $XMODIFIERS: @im=ibus
  locale-coding-system: utf-8-unix

Major mode: Info

Minor modes in effect:
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  tooltip-mode: t
  global-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
  buffer-read-only: t
  column-number-mode: t
  line-number-mode: t
  transient-mark-mode: t

Load-path shadows:
None found.

Features:
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rfc822 mml mml-sec password-cache epa derived epg epg-config gnus-util
rmail rmail-loaddefs text-property-search mm-decode mm-bodies mm-encode
mail-parse rfc2231 mailabbrev gmm-utils mailheader sendmail rfc2047
rfc2045 ietf-drums mm-util mail-prsvr mail-utils mule-util jka-compr
info cl-extra help-fns radix-tree help-mode time-date subr-x dired-aux
dired dired-loaddefs misearch multi-isearch vc-git diff-mode rng-xsd
xsd-regexp rng-cmpct rng-nxml rng-valid rng-loc rng-uri rng-parse
nxml-parse rng-match rng-dt rng-util rng-pttrn nxml-ns easymenu
nxml-mode nxml-outln nxml-rap sgml-mode seq byte-opt gv bytecomp
byte-compile cconv dom cl-loaddefs cl-lib nxml-util nxml-enc xmltok
xfonts rmailgen paren ispell delsel lpr easy-mmode pcase 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 tab-bar menu-bar rfn-eshadow isearch timer
select scroll-bar mouse jit-lock font-lock syntax facemenu font-core
term/tty-colors frame minibuffer cl-generic cham georgian utf-8-lang
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button faces cus-face macroexp files text-properties overlay sha1 md5
base64 format env code-pages mule custom widget hashtable-print-readable
backquote threads dbusbind inotify lcms2 dynamic-setting
system-font-setting font-render-setting xwidget-internal cairo
move-toolbar gtk x-toolkit x multi-tty make-network-process emacs)

Memory information:
((conses 16 123588 10376)
 (symbols 48 9050 1)
 (strings 32 28669 2052)
 (string-bytes 1 979549)
 (vectors 16 15999)
 (vector-slots 8 223002 14164)
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 (intervals 56 12125 1573)
 (buffers 1000 21))