GNU bug report logs - #48718
27.2; Mode-line still displays ~Active after LaTex embedded calc has ended

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Colin Baxter <m43cap <at> yandex.com>
To: bug-gnu-emacs <at> gnu.org
Subject: 27.2;
 Mode-line still displays ~Active after LaTex embedded calc has ended
Date: Fri, 28 May 2021 16:41:55 +0100

1. emacs -Q <RET>
2. C-x C-f test.tex <RET>
3. Mode line says "LaTeX"
3. In buffer enter $2*2$
4. With point in expression do C-x * e.
8. $2*2$ changes to $4$.
9. Echo area gives message "Embedded Calc mode enabled; Give this
   command again to return to normal". Mode-line says "LaTeX ~Active".
10. Give command C-x * e again.
11. Buffer returns to normal with message "Back to LaTeX mode".
12. But mode-line still displays "LaTeX ~Active", and does so until the
    buffer is killed.
    


In GNU Emacs 27.2 (build 1, i686-pc-linux-gnu, X toolkit, cairo version 1.14.8, Xaw3d scroll bars)
 of 2021-03-28 built on bluestar
Windowing system distributor 'The X.Org Foundation', version 11.0.11902000
System Description: Debian GNU/Linux 9 (stretch)

Recent messages:
Mark set
Buffer *unsent posting on gmane.emacs.help* modified; kill anyway? (y or n) y
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Are you sure you want to quit reading news? (y or n) y
Saving Gnus registry (2340 entries) to ~/.emacs-files/gnus/.gnus.registry.eieio...
Saving Gnus registry (size 2340) to ~/.emacs-files/gnus/.gnus.registry.eieio...done
Saving /home/redknight/.emacs-files/gnus/.newsrc.eld...
Saving file /home/redknight/.emacs-files/gnus/.newsrc.eld...
Wrote /home/redknight/.emacs-files/gnus/.newsrc.eld
Saving /home/redknight/.emacs-files/gnus/.newsrc.eld...done

Configured using:
 'configure --prefix=/home/redknight/local/opt/emacs-lucid
 --with-x-toolkit=lucid --with-mailutils --without-sound --with-cairo
 --with-imagemagick'

Configured features:
XAW3D XPM JPEG TIFF GIF PNG RSVG CAIRO IMAGEMAGICK GPM DBUS GSETTINGS
GLIB NOTIFY INOTIFY ACL LIBSELINUX GNUTLS LIBXML2 FREETYPE HARFBUZZ
M17N_FLT LIBOTF ZLIB TOOLKIT_SCROLL_BARS LUCID X11 XDBE XIM MODULES
THREADS LIBSYSTEMD PDUMPER LCMS2 GMP

Important settings:
  value of $LANG: en_GB.utf8
  locale-coding-system: utf-8

Major mode: LaTeX/S

Minor modes in effect:
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  flyspell-mode: t
  auto-insert-mode: t
  reftex-mode: t
  global-emojify-mode: t
  emojify-mode: t
  shell-dirtrack-mode: t
  savehist-mode: t
  xterm-mouse-mode: t
  display-time-mode: t
  linum-mode: t
  show-paren-mode: t
  global-eldoc-mode: t
  mouse-wheel-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

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/home/redknight/git/org-mode/lisp/ol-mhe hides /home/redknight/local/opt/emacs-lucid/share/emacs/27.2/lisp/org/ol-mhe
/home/redknight/git/org-mode/lisp/org-agenda hides /home/redknight/local/opt/emacs-lucid/share/emacs/27.2/lisp/org/org-agenda
/home/redknight/git/org-mode/lisp/ob-emacs-lisp hides /home/redknight/local/opt/emacs-lucid/share/emacs/27.2/lisp/org/ob-emacs-lisp
/home/redknight/git/org-mode/lisp/ob-awk hides /home/redknight/local/opt/emacs-lucid/share/emacs/27.2/lisp/org/ob-awk
/home/redknight/git/org-mode/lisp/ob-stan hides /home/redknight/local/opt/emacs-lucid/share/emacs/27.2/lisp/org/ob-stan
/home/redknight/git/org-mode/lisp/ob-eshell hides /home/redknight/local/opt/emacs-lucid/share/emacs/27.2/lisp/org/ob-eshell
/home/redknight/git/org-mode/lisp/ob-coq hides /home/redknight/local/opt/emacs-lucid/share/emacs/27.2/lisp/org/ob-coq
/home/redknight/git/org-mode/lisp/org-element hides /home/redknight/local/opt/emacs-lucid/share/emacs/27.2/lisp/org/org-element

Features:
(shadow mailalias emacsbug calc-misc calccomp calc-alg calc-aent
calc-lang calc-menu calc-embed constants flow-fill supercite regi
ol-w3m org-tempo tempo ol-rmail org-protocol ol-mhe ox-md ol-irc
ol-info org-inlinetask org-id ol-gnus ol-eww eww-lnum eww url-queue
ol-eshell esh-mode ol-docview doc-view jka-compr org-collector
ol-bibtex bibtex ol-bbdb footnote nnir mule-util gnus-gravatar
gravatar cl-extra sort smiley gnus-cite qp gnus-bcklg mail-extr
gnus-async gnus-ml gnus-topic mm-archive url-http url-gw url-cache
url-auth url-handlers utf-7 nnrss mm-url nndraft nnmh nnml bbdb-gnus
bbdb-message sendmail epa-file gnutls network-stream nsm gnus-agent
gnus-srvr gnus-score score-mode nnvirtual gnus-msg nntp gnus-cache
gnus-article-treat-patch diff-mode gnus-registry registry eieio-base
gnus-icalendar org-capture icalendar diary-lib diary-loaddefs gnus-art
mm-uu mml2015 mm-view mml-smime smime dig gnus-sum shr svg dom
browse-url gnus-group gnus-undo gnus-fun gnus-start gnus-cloud nnimap
nnmail mail-source utf7 nnoo gnus-spec gnus-int gnus-range message rmc
puny rfc822 mml mml-sec mm-decode mm-bodies mm-encode mail-parse
rfc2231 gmm-utils mailheader gnus-win gnus nnheader gnus-util rmail
rmail-loaddefs rfc2047 rfc2045 ietf-drums mail-utils mm-util
mail-prsvr executable time-stamp whitespace reftex-parse reftex-dcr
reftex-auc tex-buf font-latex latex latex-flymake flymake-proc flymake
warnings tex-ispell tex-style tex dbus xml texmathp tex-mode latexenc
flyspell simple-dark-theme ibuf-ext ibuffer ibuffer-loaddefs bookmark
text-property-search pp autoinsert printing ps-print ps-print-loaddefs
ps-def lpr url url-proxy url-privacy url-expand url-methods
url-history url-cookie url-domsuf url-util url-parse url-vars mailcap
ssh ovpn-mode netrc auto-loads tex-site server image-dired+ help-mode
dired+ image-dired image-mode exif image-file dired-x dired-aux
muse-texinfo texnfo-upd texinfo muse-latex muse-html muse-xml-common
muse-publish muse-project muse-protocols info muse-regexps muse
muse-nested-tags muse-mode page-break-lines ox-bibtex ox-texinfo
reftex-cite reftex reftex-loaddefs reftex-vars org-screenshot emojify
apropos tar-mode arc-mode archive-mode pcase ht dash iimage ob-sqlite
ob-sql ob-shell ob-ruby ob-R ob-python python tramp-sh tramp
tramp-loaddefs trampver tramp-integration files-x tramp-compat shell
parse-time iso8601 ls-lisp auth-source password-cache json map
ob-plantuml ob-org ob-perl ob-lisp ob-latex ob-gnuplot ob-fortran
ob-eshell eshell esh-cmd esh-ext esh-opt esh-proc esh-io esh-arg
esh-module esh-groups esh-util ob-dot ob-ditaa ob-calc calc-store
calc-trail calc-ext calc calc-loaddefs calc-macs ob-C cc-mode cc-fonts
cc-guess cc-menus cc-cmds ob-awk ido org-journal edmacro kmacro seq
org-crypt epa derived epg epg-config cal-iso ox-epub ox-odt rng-loc
rng-uri rng-parse rng-match rng-dt rng-util rng-pttrn nxml-parse
nxml-ns nxml-enc xmltok nxml-util ox-latex ox-icalendar ox-html table
ox-ascii ox-publish ox org-element avl-tree org-habit org-agenda
org-refile org ob ob-tangle ob-ref ob-lob ob-table ob-exp org-macro
org-footnote org-src ob-comint org-pcomplete pcomplete org-list
org-faces org-entities time-date subr-x noutline outline easy-mmode
org-version ob-emacs-lisp ob-core ob-eval org-table ol rx org-keys
org-compat org-macs org-loaddefs format-spec find-func cal-menu
calendar cal-loaddefs wc-mode bbdb-mua bbdb-com crm mailabbrev bbdb
bbdb-site timezone bbdb-loaddefs insert-shebang ggtags etags fileloop
generator xref cl-seq project eieio byte-opt bytecomp byte-compile
cconv eieio-core cl-macs eieio-loaddefs ewoc xcscope lusty-explorer
dired dired-loaddefs htmlize cl gv multi-term term disp-table ehelp
synonyms mairix ftnchek-mode compile fortran cus-edit easymenu
wid-edit cc-styles cc-align cc-engine cc-vars cc-defs cpan comint
ansi-color ring browse-kill-ring+ second-sel browse-kill-ring delsel
savehist generic-x ispell xt-mouse time so-long linum-ex isearch+
isearch-prop thingatpt+ thingatpt color advice heaven-and-hell paren
cus-start cus-load slime-autoloads cl-loaddefs cl-lib early-init
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 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
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 threads dbusbind
inotify lcms2 dynamic-setting system-font-setting font-render-setting
cairo x-toolkit x multi-tty make-network-process emacs)

Memory information:
((conses 8 669932 219134)
 (symbols 24 51744 5)
 (strings 16 234813 40497)
 (string-bytes 1 6842383)
 (vectors 8 108297)
 (vector-slots 4 3854614 86632)
 (floats 8 849 477)
 (intervals 28 8554 3008)
 (buffers 568 53))

Message #8 received at 48718 <at> debbugs.gnu.org (full text, mbox):

From: Kyle Meyer <kyle <at> kyleam.com>
To: Colin Baxter <m43cap <at> yandex.com>
Cc: 48718 <at> debbugs.gnu.org
Subject: Re: bug#48718: 27.2; Mode-line still displays ~Active after LaTex
 embedded calc has ended
Date: Fri, 28 May 2021 12:42:26 -0400

Colin Baxter writes:

> 1. emacs -Q <RET>
> 2. C-x C-f test.tex <RET>
> 3. Mode line says "LaTeX"
> 3. In buffer enter $2*2$
> 4. With point in expression do C-x * e.
> 8. $2*2$ changes to $4$.
> 9. Echo area gives message "Embedded Calc mode enabled; Give this
>    command again to return to normal". Mode-line says "LaTeX ~Active".
> 10. Give command C-x * e again.
> 11. Buffer returns to normal with message "Back to LaTeX mode".
> 12. But mode-line still displays "LaTeX ~Active", and does so until the
>     buffer is killed.

As far as I understand, that's by design.  It indicates that formulas
are still active in the buffer.

From (info "(calc)Assignments in Embedded Mode"):

  [...] Calc puts ‘~Active’ in the mode line if some, but probably not
  all, formulas in the buffer are active.  This happens if you activate
  a few formulas one at a time but never use ‘C-x * a’, or if you used
  ‘C-x * a’ but then Calc had to deactivate a formula because it lost
  track of it.  If neither of these symbols appears in the mode line, no
  embedded formulas are active in the buffer (e.g., before Embedded mode
  has been used, or after a ‘M-- C-x * a’).

You should see an entry for the buffer in the variable
calc-embedded-active.  Invoking the keybinding mentioned in the last
sentence quoted above (triggering calc-embedded-forget) should remove
the buffer's entry from calc-embedded-active and "~Active" from the mode
line.

Message #11 received at 48718 <at> debbugs.gnu.org (full text, mbox):

From: Colin Baxter <m43cap <at> yandex.com>
To: Kyle Meyer <kyle <at> kyleam.com>
Cc: , 48718 <at> debbugs.gnu.org
Subject: Re: bug#48718: 27.2; Mode-line still displays ~Active after LaTex
 embedded calc has ended
Date: Fri, 28 May 2021 17:53:14 +0100

Hello Kyle,

>>>>> Kyle Meyer <kyle <at> kyleam.com> writes:

    > Colin Baxter writes:
    >> 1. emacs -Q <RET> 2. C-x C-f test.tex <RET> 3. Mode line says
    >> "LaTeX" 3. In buffer enter $2*2$ 4. With point in expression do
    >> C-x * e.  8. $2*2$ changes to $4$.  9. Echo area gives message
    >> "Embedded Calc mode enabled; Give this command again to return to
    >> normal". Mode-line says "LaTeX ~Active".  10. Give command C-x *
    >> e again.  11. Buffer returns to normal with message "Back to
    >> LaTeX mode".  12. But mode-line still displays "LaTeX ~Active",
    >> and does so until the buffer is killed.

    > As far as I understand, that's by design.  It indicates that
    > formulas are still active in the buffer.

    > From (info "(calc)Assignments in Embedded Mode"):

    >   [...] Calc puts ‘~Active’ in the mode line if some, but probably
    > not all, formulas in the buffer are active.  This happens if you
    > activate a few formulas one at a time but never use ‘C-x * a’, or
    > if you used ‘C-x * a’ but then Calc had to deactivate a formula
    > because it lost track of it.  If neither of these symbols appears
    > in the mode line, no embedded formulas are active in the buffer
    > (e.g., before Embedded mode has been used, or after a ‘M-- C-x *
    > a’).

    > You should see an entry for the buffer in the variable
    > calc-embedded-active.  Invoking the keybinding mentioned in the
    > last sentence quoted above (triggering calc-embedded-forget)
    > should remove the buffer's entry from calc-embedded-active and
    > "~Active" from the mode line.

Well yes, but the above information has to be gleaned from info. The
user is just told that another  C-x * e will return things to
normal. This is not the case. I think at the very least the user should
be given further information.

Best wishes,

Colin.

Message #14 received at 48718 <at> debbugs.gnu.org (full text, mbox):

From: Lars Ingebrigtsen <larsi <at> gnus.org>
To: Colin Baxter <m43cap <at> yandex.com>
Cc: Kyle Meyer <kyle <at> kyleam.com>, 48718 <at> debbugs.gnu.org
Subject: Re: bug#48718: 27.2; Mode-line still displays ~Active after LaTex
 embedded calc has ended
Date: Fri, 15 Jul 2022 13:43:00 +0200

Colin Baxter <m43cap <at> yandex.com> writes:

> Well yes, but the above information has to be gleaned from info. The
> user is just told that another  C-x * e will return things to
> normal. This is not the case. I think at the very least the user should
> be given further information.

The buffer is returned to the normal major mode, but the "~Active" thing
is telling the user that there are still some active formulas (as the
manual says).  I don't think there's any simple way to convey that --
the user just has to read the manual if they wonder about that.

So I think this is basically working as designed, and I'm therefore
closing this bug report.

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no

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