GNU bug report logs - #64056
28.2; CPerl mode: bad coloring when a comment block is used

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Vincent Lefevre <vincent <at> vinc17.net>
Subject: bug#64056: closed (Yanking into POD sections is fixed in the
 Emacs repository.)
Date: Sat, 01 Jul 2023 20:30:02 +0000

[Message part 1 (text/plain, inline)]

Your bug report

#64056: 28.2; CPerl mode: bad coloring when a comment block is used

which was filed against the emacs package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 64056 <at> debbugs.gnu.org.

-- 
64056: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=64056
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

[Message part 2 (message/rfc822, inline)]

From: Harald Jörg <haj <at> posteo.de>
To: 64056-done <at> debbugs.gnu.org
Subject: Yanking into POD sections is fixed in the Emacs repository.
Date: Sat, 01 Jul 2023 20:29:36 +0000

Fontification is no longer broken when text is yanked into a POD
section.  Several changes have been made to make CPerl mode work better
with jit-lock mode (which initiates fontification while you type).

cperl-mode.el as available in the repository can be used with
Emacs 28 and 27 (and could be backported to Emacs 26 if there is
interest).

Therefore I'm closing the bug now.

-- 
Cheers,
haj

[Message part 3 (message/rfc822, inline)]

From: Vincent Lefevre <vincent <at> vinc17.net>
To: bug-gnu-emacs <at> gnu.org
Subject: 28.2; CPerl mode: bad coloring when a comment block is used
Date: Wed, 14 Jun 2023 04:05:47 +0200

When a comment block is used, i.e.

=begin comment

[code to comment]

=end comment

=cut

as described in the perlfaq7 man page, after some edition, everything
starting at the "=begin comment" line is in the comment color, even
the code after the "=cut" line (which is no longer commented code).

To reproduce the bug:

1. Create a file with

----------------------------------------
#!/usr/bin/env perl

foo;

=begin comment

bar;

=end comment

=cut

print "OK\n";
----------------------------------------

2. Open it with "emacs -Q".
3. M-x cperl-mode
4. Go to the beginning of line "foo;".
5. C-k
6. Go to the beginning of line "bar;".
7. C-y

At step 7, the color of the line

  print "OK\n";

changes to the comment color.

This occurs whether the Emacs X11 interface is used or not.
And this bug is still reproducible with cperl-mode.el from
the Git master branch.

My Debian bug report:
  https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1037544


In GNU Emacs 28.2 (build 1, x86_64-pc-linux-gnu, GTK+ Version 3.24.37, cairo version 1.16.0)
 of 2023-05-14, modified by Debian built on x86-ubc-01
Windowing system distributor 'The X.Org Foundation', version 11.0.12101007
System Description: Debian GNU/Linux trixie/sid

Configured using:
 'configure --build x86_64-linux-gnu --prefix=/usr
 --sharedstatedir=/var/lib --libexecdir=/usr/libexec
 --localstatedir=/var/lib --infodir=/usr/share/info
 --mandir=/usr/share/man --with-libsystemd --with-pop=yes
 --enable-locallisppath=/etc/emacs:/usr/local/share/emacs/28.2/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/28.2/site-lisp:/usr/share/emacs/site-lisp
 --with-sound=alsa --without-gconf --with-mailutils
 --with-native-compilation --build x86_64-linux-gnu --prefix=/usr
 --sharedstatedir=/var/lib --libexecdir=/usr/libexec
 --localstatedir=/var/lib --infodir=/usr/share/info
 --mandir=/usr/share/man --with-libsystemd --with-pop=yes
 --enable-locallisppath=/etc/emacs:/usr/local/share/emacs/28.2/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/28.2/site-lisp:/usr/share/emacs/site-lisp
 --with-sound=alsa --without-gconf --with-mailutils
 --with-native-compilation --with-cairo --with-x=yes
 --with-x-toolkit=gtk3 --with-toolkit-scroll-bars 'CFLAGS=-g -O2
 -ffile-prefix-map=/build/emacs-mPr7Vr/emacs-28.2+1=.
 -fstack-protector-strong -Wformat -Werror=format-security -Wall'
 'CPPFLAGS=-Wdate-time -D_FORTIFY_SOURCE=2' LDFLAGS=-Wl,-z,relro'

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

Important settings:
  value of $LC_COLLATE: POSIX
  value of $LC_CTYPE: C.UTF-8
  value of $LC_TIME: en_DK.utf8
  value of $LANG: POSIX
  locale-coding-system: utf-8-unix

Major mode: CPerl

Minor modes in effect:
  display-time-mode: t
  tooltip-mode: t
  global-eldoc-mode: t
  show-paren-mode: t
  electric-indent-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
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  column-number-mode: t
  line-number-mode: t
  transient-mark-mode: t

Load-path shadows:
/usr/share/emacs/site-lisp/llvm-10/llvm-mode hides /usr/share/emacs/site-lisp/llvm-11/llvm-mode
/usr/share/emacs/site-lisp/llvm-10/emacs hides /usr/share/emacs/site-lisp/llvm-11/emacs
/usr/share/emacs/site-lisp/llvm-10/tablegen-mode hides /usr/share/emacs/site-lisp/llvm-11/tablegen-mode
/usr/share/emacs/site-lisp/llvm-10/llvm-mode hides /usr/share/emacs/site-lisp/llvm-12/llvm-mode
/usr/share/emacs/site-lisp/llvm-10/emacs hides /usr/share/emacs/site-lisp/llvm-12/emacs
/usr/share/emacs/site-lisp/llvm-10/tablegen-mode hides /usr/share/emacs/site-lisp/llvm-12/tablegen-mode
/usr/share/emacs/site-lisp/llvm-10/llvm-mode hides /usr/share/emacs/site-lisp/llvm-13/llvm-mode
/usr/share/emacs/site-lisp/llvm-10/emacs hides /usr/share/emacs/site-lisp/llvm-13/emacs
/usr/share/emacs/site-lisp/llvm-10/tablegen-mode hides /usr/share/emacs/site-lisp/llvm-13/tablegen-mode
/usr/share/emacs/site-lisp/llvm-10/llvm-mode hides /usr/share/emacs/site-lisp/llvm-14/llvm-mode
/usr/share/emacs/site-lisp/llvm-10/emacs hides /usr/share/emacs/site-lisp/llvm-14/emacs
/usr/share/emacs/site-lisp/llvm-10/tablegen-mode hides /usr/share/emacs/site-lisp/llvm-14/tablegen-mode
/usr/share/emacs/site-lisp/llvm-10/llvm-mode hides /usr/share/emacs/site-lisp/llvm-15/llvm-mode
/usr/share/emacs/site-lisp/llvm-10/emacs hides /usr/share/emacs/site-lisp/llvm-15/emacs
/usr/share/emacs/site-lisp/llvm-10/tablegen-mode hides /usr/share/emacs/site-lisp/llvm-15/tablegen-mode
/usr/share/emacs/site-lisp/llvm-10/llvm-mode hides /usr/share/emacs/site-lisp/llvm-3.5/llvm-mode
/usr/share/emacs/site-lisp/llvm-10/emacs hides /usr/share/emacs/site-lisp/llvm-3.5/emacs
/usr/share/emacs/site-lisp/llvm-10/tablegen-mode hides /usr/share/emacs/site-lisp/llvm-3.5/tablegen-mode
/usr/share/emacs/site-lisp/llvm-10/llvm-mode hides /usr/share/emacs/site-lisp/llvm-3.6/llvm-mode
/usr/share/emacs/site-lisp/llvm-10/emacs hides /usr/share/emacs/site-lisp/llvm-3.6/emacs
/usr/share/emacs/site-lisp/llvm-10/tablegen-mode hides /usr/share/emacs/site-lisp/llvm-3.6/tablegen-mode
/usr/share/emacs/site-lisp/llvm-10/llvm-mode hides /usr/share/emacs/site-lisp/llvm-3.7/llvm-mode
/usr/share/emacs/site-lisp/llvm-10/emacs hides /usr/share/emacs/site-lisp/llvm-3.7/emacs
/usr/share/emacs/site-lisp/llvm-10/tablegen-mode hides /usr/share/emacs/site-lisp/llvm-3.7/tablegen-mode
/usr/share/emacs/site-lisp/llvm-10/llvm-mode hides /usr/share/emacs/site-lisp/llvm-7/llvm-mode
/usr/share/emacs/site-lisp/llvm-10/emacs hides /usr/share/emacs/site-lisp/llvm-7/emacs
/usr/share/emacs/site-lisp/llvm-10/tablegen-mode hides /usr/share/emacs/site-lisp/llvm-7/tablegen-mode
/usr/share/emacs/site-lisp/llvm-10/llvm-mode hides /usr/share/emacs/site-lisp/llvm-8/llvm-mode
/usr/share/emacs/site-lisp/llvm-10/emacs hides /usr/share/emacs/site-lisp/llvm-8/emacs
/usr/share/emacs/site-lisp/llvm-10/tablegen-mode hides /usr/share/emacs/site-lisp/llvm-8/tablegen-mode
/usr/share/emacs/site-lisp/llvm-10/llvm-mode hides /usr/share/emacs/site-lisp/llvm-9/llvm-mode
/usr/share/emacs/site-lisp/llvm-10/emacs hides /usr/share/emacs/site-lisp/llvm-9/emacs
/usr/share/emacs/site-lisp/llvm-10/tablegen-mode hides /usr/share/emacs/site-lisp/llvm-9/tablegen-mode
/usr/share/emacs/site-lisp/elpa/po-mode-0.21/po-mode hides /usr/share/emacs/site-lisp/elpa-src/po-mode-0.21/po-mode
/usr/share/emacs/site-lisp/elpa/po-mode-0.21/po-mode-pkg hides /usr/share/emacs/site-lisp/elpa-src/po-mode-0.21/po-mode-pkg
/usr/share/emacs/site-lisp/elpa/po-mode-0.21/po-mode-autoloads hides /usr/share/emacs/site-lisp/elpa-src/po-mode-0.21/po-mode-autoloads
/usr/share/emacs/site-lisp/latex-cjk-thai/thai-word hides /usr/share/emacs/28.2/lisp/language/thai-word

Features:
(shadow sort mail-extr warnings emacsbug message rmc puny dired
dired-loaddefs rfc822 mml mml-sec epa derived epg rfc6068 epg-config
gnus-util rmail rmail-loaddefs text-property-search time-date mm-decode
mm-bodies mm-encode mail-parse rfc2231 mailabbrev gmm-utils mailheader
sendmail rfc2047 rfc2045 ietf-drums mm-util mail-prsvr mail-utils
cperl-mode rx facemenu cus-edit pp cus-start wid-edit time cus-load
cc-styles cc-align cc-engine cc-vars cc-defs edmacro kmacro mmm-auto
mmm-vars mmm-utils mmm-compat package browse-url url url-proxy
url-privacy url-expand url-methods url-history url-cookie url-domsuf
url-util mailcap url-handlers url-parse auth-source cl-seq eieio
eieio-core cl-macs eieio-loaddefs password-cache json subr-x map
url-vars seq byte-opt gv bytecomp byte-compile cconv cl-loaddefs cl-lib
iso-transl tooltip eldoc paren electric uniquify ediff-hook vc-hooks
lisp-float-type elisp-mode 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 lisp-mode prog-mode register page tab-bar menu-bar
rfn-eshadow isearch easymenu timer select scroll-bar mouse jit-lock
font-lock syntax font-core term/tty-colors frame minibuffer 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 emoji-zwj charscript
charprop case-table epa-hook jka-cmpr-hook help simple abbrev obarray
cl-preloaded nadvice button loaddefs faces cus-face macroexp files
window 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
cairo move-toolbar gtk x-toolkit x multi-tty make-network-process
native-compile emacs)

Memory information:
((conses 16 135608 6639)
 (symbols 48 11538 0)
 (strings 32 34682 2270)
 (string-bytes 1 1172324)
 (vectors 16 16884)
 (vector-slots 8 353839 7492)
 (floats 8 46 11)
 (intervals 56 297 0)
 (buffers 992 12))

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