GNU logs - #31035, boring messages

Message sent to bojohan@HIDDEN, acm@HIDDEN, bug-gnu-emacs@HIDDEN:

Subject: bug#31035: 27.0.50; (apply ...) doesn't work with undo-in-region
Resent-From: Stefan Monnier <monnier@HIDDEN>
Original-Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org>
Resent-CC: bojohan@HIDDEN, acm@HIDDEN, bug-gnu-emacs@HIDDEN
Resent-Date: Mon, 02 Apr 2018 23:55:01 +0000
Resent-Message-ID: <handler.31035.B.152271328610630 <at> debbugs.gnu.org>
Resent-Sender: help-debbugs@HIDDEN
To: 31035 <at> debbugs.gnu.org
Cc: Johan =?UTF-8?Q?Bockg=C3=A5rd?= <bojohan@HIDDEN>, Alan Mackenzie <acm@HIDDEN>
From: Stefan Monnier <monnier@HIDDEN>
Date: Mon, 02 Apr 2018 19:54:28 -0400
Message-ID: <jwva7ul6u6j.fsf@HIDDEN>
MIME-Version: 1.0
Content-Type: text/plain
Precedence: list
Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org
Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org>

Package: Emacs
Version: 27.0.50


As brought up by Johan, the (apply ...) elements in buffer-undo-list are
"too powerful".  Even though BEG/END/DELTA are provided, with the
intention to make it possible for undo-in-region to handle those
entries, undo-in-region does not handle those entries.

The main problem being that undo-in-region (as well as
erc-update-undo-list, incidentally) needs not just to know which part of
the buffer is modified and with which DELTA, but it also needs to be
able to create a new entry to apply the same change at another
buffer position.


        Stefan



In GNU Emacs 27.0.50 (build 1, x86_64-unknown-linux-gnu, GTK+ Version 3.22.26)
 of 2018-03-01 built on alfajor
Repository revision: 2d65141a5654c475746bd78d998877901a0ff065
Windowing system distributor 'The X.Org Foundation', version 11.0.11906000
System Description: Debian GNU/Linux buster/sid

Recent messages:
Saving file /home/monnier/src/emacs/elpa/packages/auctex/bib-cite.el...
Wrote /home/monnier/src/emacs/elpa/packages/auctex/bib-cite.el
Mark set [4 times]
Saving file /home/monnier/src/emacs/elpa/packages/auctex/bib-cite.el...
Wrote /home/monnier/src/emacs/elpa/packages/auctex/bib-cite.el
Finding changes in /home/monnier/src/emacs/elpa/packages/auctex/bib-cite.el...done
Power AC, battery Charging (63.5% load, remaining time 0:53)
2.6
2.4


Configured using:
 'configure -C --enable-checking --with-modules --enable-check-lisp-object-type
 'CFLAGS=-Wall -g3 -Og -Wno-pointer-sign'
 PKG_CONFIG_PATH=/home/monnier/lib/pkgconfig'

Configured features:
XPM JPEG TIFF GIF PNG RSVG IMAGEMAGICK SOUND GPM DBUS GSETTINGS NOTIFY
GNUTLS LIBXML2 FREETYPE M17N_FLT LIBOTF XFT ZLIB TOOLKIT_SCROLL_BARS
GTK3 X11 MODULES THREADS LCMS2

Important settings:
  value of $LANG: fr_CH.UTF-8
  locale-coding-system: utf-8-unix

Major mode: InactiveMinibuffer

Minor modes in effect:
  shell-dirtrack-mode: t
  diff-auto-refine-mode: t
  electric-pair-mode: t
  global-reveal-mode: t
  reveal-mode: t
  auto-insert-mode: t
  savehist-mode: t
  minibuffer-electric-default-mode: t
  global-compact-docstrings-mode: t
  url-handler-mode: t
  global-eldoc-mode: t
  electric-indent-mode: t
  mouse-wheel-mode: t
  global-prettify-symbols-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-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:
/home/monnier/src/emacs/elpa/packages/svg/svg hides /home/monnier/src/emacs/work/lisp/svg
/home/monnier/src/emacs/elpa/packages/ada-mode/ada-mode hides /home/monnier/src/emacs/work/lisp/progmodes/ada-mode
/home/monnier/src/emacs/elpa/packages/ada-mode/ada-stmt hides /home/monnier/src/emacs/work/lisp/progmodes/ada-stmt
/home/monnier/src/emacs/elpa/packages/ada-mode/ada-prj hides /home/monnier/src/emacs/work/lisp/progmodes/ada-prj
/home/monnier/src/emacs/elpa/packages/ada-mode/ada-xref hides /home/monnier/src/emacs/work/lisp/progmodes/ada-xref
/home/monnier/src/emacs/elpa/packages/hyperbole/set hides /home/monnier/src/emacs/work/lisp/emacs-lisp/set
/home/monnier/src/emacs/elpa/packages/landmark/landmark hides /home/monnier/src/emacs/work/lisp/obsolete/landmark
/home/monnier/src/emacs/elpa/packages/crisp/crisp hides /home/monnier/src/emacs/work/lisp/obsolete/crisp

Features:
(sort mail-extr emacsbug message rmc puny format-spec rfc822 mml mml-sec
epa epg gnus-util rmail rmail-loaddefs mm-decode mm-bodies mm-encode
mail-parse rfc2231 mailabbrev mailheader sendmail rfc2047 rfc2045
ietf-drums mm-util mail-prsvr mail-utils smerge-mode whitespace shell
pcomplete autoload cl-print executable copyright skeleton add-log
log-view pcvs-util vc dired desktop frameset edmacro kmacro
dired-loaddefs subr-x vc-dispatcher sm-c-mode smie gud derived pcase
lisp-mnt eieio-opt speedbar sb-image ezimage dframe cl-extra help-fns
radix-tree battery misearch multi-isearch xscheme unsafep trace
testcover shadow scheme re-builder profiler inf-lisp ielm gmm-utils ert
pp find-func ewoc debug elp edebug cl-indent cus-edit cus-start cus-load
wid-edit vc-git diff-mode filecache server time-date flymake-proc
flymake compile comint ansi-color ring warnings noutline outline
easy-mmode flyspell ispell checkdoc thingatpt help-mode load-dir
elec-pair reveal autoinsert proof-site proof-autoloads cl pg-vars
savehist minibuf-eldef disp-table compact-docstrings cl-seq inline
kotl-autoloads advice info realgud-recursive-autoloads finder-inf
url-auth package easymenu epg-config url-handlers url-parse auth-source
eieio eieio-core cl-macs eieio-loaddefs password-cache json map url-vars
seq byte-opt gv bytecomp byte-compile cconv cl-loaddefs cl-lib 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 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 8 401805 39008)
 (symbols 24 33047 0) (miscs 20 6526 1667) (strings 16 75688 9803)
 (string-bytes 1 2364495)
 (vectors 12 41583) (vector-slots 4 1755478 87288) (floats 8 173 323)
 (intervals 28 18663 873)
 (buffers 536 52))

Message sent:

Content-Disposition: inline
Content-Transfer-Encoding: quoted-printable
MIME-Version: 1.0
X-Mailer: MIME-tools 5.505 (Entity 5.505)
Content-Type: text/plain; charset=utf-8
X-Loop: help-debbugs@HIDDEN
From: help-debbugs@HIDDEN (GNU bug Tracking System)
To: Stefan Monnier <monnier@HIDDEN>
Subject: bug#31035: Acknowledgement (27.0.50; (apply ...) doesn't work
 with undo-in-region)
Message-ID: <handler.31035.B.152271328610630.ack <at> debbugs.gnu.org>
References: <jwva7ul6u6j.fsf@HIDDEN>
X-Gnu-PR-Message: ack 31035
X-Gnu-PR-Package: emacs
Reply-To: 31035 <at> debbugs.gnu.org
Date: Mon, 02 Apr 2018 23:55:01 +0000

Thank you for filing a new bug report with debbugs.gnu.org.

This is an automatically generated reply to let you know your message
has been received.

Your message is being forwarded to the package maintainers and other
interested parties for their attention; they will reply in due course.

As you requested using X-Debbugs-CC, your message was also forwarded to
  Johan Bockg=C3=A5rd <bojohan@HIDDEN>, Alan Mackenzie <acm@HIDDEN>
(after having been given a bug report number, if it did not have one).

Your message has been sent to the package maintainer(s):
 bug-gnu-emacs@HIDDEN

If you wish to submit further information on this problem, please
send it to 31035 <at> debbugs.gnu.org.

Please do not send mail to help-debbugs@HIDDEN unless you wish
to report a problem with the Bug-tracking system.

--=20
31035: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=3D31035
GNU Bug Tracking System
Contact help-debbugs@HIDDEN with problems

Message sent to bug-gnu-emacs@HIDDEN:

Subject: bug#31035: 27.0.50; (apply ...) doesn't work with undo-in-region
Resent-From: Stefan Monnier <monnier@HIDDEN>
Original-Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org>
Resent-CC: bug-gnu-emacs@HIDDEN
Resent-Date: Tue, 03 Apr 2018 00:42:01 +0000
Resent-Message-ID: <handler.31035.B31035.152271608022358 <at> debbugs.gnu.org>
Resent-Sender: help-debbugs@HIDDEN
To: 31035 <at> debbugs.gnu.org
Cc: Alan Mackenzie <acm@HIDDEN>, Johan =?UTF-8?Q?Bockg=C3=A5rd?= <bojohan@HIDDEN>
From: Stefan Monnier <monnier@HIDDEN>
Message-ID: <jwvo9j1dsxq.fsf-monnier+emacsbugs@HIDDEN>
References: <jwva7ul6u6j.fsf@HIDDEN>
Date: Mon, 02 Apr 2018 20:41:11 -0400
In-Reply-To: <jwva7ul6u6j.fsf@HIDDEN> (Stefan Monnier's message of
 "Mon, 02 Apr 2018 19:54:28 -0400")
User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.0.50 (gnu/linux)
MIME-Version: 1.0
Content-Type: text/plain
Precedence: list
Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org
Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org>

> The main problem being that undo-in-region (as well as
> erc-update-undo-list, incidentally) needs not just to know which part of
> the buffer is modified and with which DELTA, but it also needs to be
> able to create a new entry to apply the same change at another
> buffer position.

I think the easiest solution for that is to somehow pass BEG to the
function so that the function can be made "position independent".

The easiest way to do that without changing the format is to probably
move point to BEG before calling the function (and to document the fact
that the function should not bake-in the values of BEG and END but
should instead assume that point is the beginning of the area that
should be modified).


        Stefan

Last modified: Mon, 25 Nov 2019 12:00:02 UTC

GNU bug tracking system
Copyright (C) 1999 Darren O. Benham, 1997 nCipher Corporation Ltd, 1994-97 Ian Jackson.