GNU logs - #27239, boring messages

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Subject: bug#27239: 25.1; grep: current symbol substitutes part of grep-command
Resent-From: Yuri Khan <yuri.v.khan@HIDDEN>
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Date: Mon, 5 Jun 2017 00:48:30 +0700
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$ emacs -Q

(setq grep-command "git --no-pager grep --no-index -Hn -E -e ") C-x C-e
(setq grep-use-null-device nil) C-x C-e

M-x grep RET

=E2=87=92 Run grep (like this): git --no-pager grep --no-index -Hn -E -e

<down>

=E2=87=92 Run grep (like this): git --no-pager '' --no-index -Hn -E -e


Observed behavior: =E2=80=98grep=E2=80=99 takes the last command from the h=
istory and
replaces the first argument that does not start with a hyphen-minus with
the current symbol. This is not documented anywhere.

Expected behavior: It would probably make sense to just generate the new
command by concatenating =E2=80=98grep-command=E2=80=99 and the current sym=
bol, without
any heuristics to remove the search pattern from the previous command.



In GNU Emacs 25.1.1 (x86_64-pc-linux-gnu, GTK+ Version 3.18.9)
 of 2016-12-13, modified by Debian built on lgw01-55
Windowing system distributor 'The X.Org Foundation', version 11.0.11804000
System Description:    Ubuntu 16.04.2 LTS

Configured using:
 'configure --build x86_64-linux-gnu --prefix=3D/usr
 --sharedstatedir=3D/var/lib --libexecdir=3D/usr/lib
 --localstatedir=3D/var/lib --infodir=3D/usr/share/info
 --mandir=3D/usr/share/man --with-pop=3Dyes
 --enable-locallisppath=3D/etc/emacs25:/etc/emacs:/usr/local/share/emacs/25=
.1/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/25.1/site-li=
sp:/usr/share/emacs/site-lisp
 --with-sound=3Dalsa --build x86_64-linux-gnu --prefix=3D/usr
 --sharedstatedir=3D/var/lib --libexecdir=3D/usr/lib
 --localstatedir=3D/var/lib --infodir=3D/usr/share/info
 --mandir=3D/usr/share/man --with-pop=3Dyes
 --enable-locallisppath=3D/etc/emacs25:/etc/emacs:/usr/local/share/emacs/25=
.1/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/25.1/site-li=
sp:/usr/share/emacs/site-lisp
 --with-sound=3Dalsa --with-x=3Dyes --with-x-toolkit=3Dgtk3
 --with-toolkit-scroll-bars 'CFLAGS=3D-g -O2 -fstack-protector-strong
 -Wformat -Werror=3Dformat-security -Wall' 'CPPFLAGS=3D-Wdate-time
 -D_FORTIFY_SOURCE=3D2' 'LDFLAGS=3D-Wl,-Bsymbolic-functions -Wl,-z,relro''

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

Important settings:
  value of $LC_MONETARY: en_RU.UTF-8
  value of $LC_NUMERIC: en_RU.UTF-8
  value of $LC_TIME: en_RU.UTF-8
  value of $LANG: en_US.UTF-8
  locale-coding-system: utf-8-unix

Major mode: Lisp Interaction

Minor modes in effect:
  shell-dirtrack-mode: t
  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
  line-number-mode: t
  transient-mark-mode: t

Recent messages:
For information about GNU Emacs and the GNU system, type C-h C-a.
"git --no-pager grep -Hn -E -e "
Quit
M-g RET is undefined
user-error: End of history; no default available
Quit [2 times]

Load-path shadows:
None found.

Features:
(shadow sort mail-extr emacsbug message dired format-spec rfc822 mml
mml-sec password-cache epg epg-config gnus-util mm-decode mm-bodies
mm-encode mailabbrev gmm-utils mailheader sendmail mail-utils mail-parse
rfc2231 rfc2047 rfc2045 ietf-drums mm-util help-fns help-mode easymenu
cl-loaddefs pcase cl-lib mail-prsvr mailcap shell pcomplete thingatpt
grep compile comint ansi-color ring time-date mule-util tooltip eldoc
electric uniquify ediff-hook vc-hooks lisp-float-type mwheel x-win
term/common-win x-dnd tool-bar dnd fontset image regexp-opt fringe
tabulated-list newcomment elisp-mode lisp-mode prog-mode register page
menu-bar rfn-eshadow timer select scroll-bar mouse jit-lock font-lock
syntax facemenu font-core 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 charscript case-table epa-hook jka-cmpr-hook help
simple abbrev 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 dynamic-setting system-font-setting font-render-setting
move-toolbar gtk x-toolkit x multi-tty make-network-process emacs)

Memory information:
((conses 16 106114 9489)
 (symbols 48 20561 0)
 (miscs 40 49 171)
 (strings 32 22533 4220)
 (string-bytes 1 586703)
 (vectors 16 12930)
 (vector-slots 8 441229 4253)
 (floats 8 166 267)
 (intervals 56 264 0)
 (buffers 976 17)
 (heap 1024 43106 995))

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From: help-debbugs@HIDDEN (GNU bug Tracking System)
To: Yuri Khan <yuri.v.khan@HIDDEN>
Subject: bug#27239: Acknowledgement (25.1; grep: current symbol
 substitutes part of grep-command)
Message-ID: <handler.27239.B.149659854311305.ack <at> debbugs.gnu.org>
References: <CAP_d_8UVfrjMcbP=q1WnUfGWHoT0oEV83SmZ1ck4siPdzjDTZg@HIDDEN>
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Reply-To: 27239 <at> debbugs.gnu.org
Date: Sun, 04 Jun 2017 17:50:02 +0000

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--=20
27239: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=3D27239
GNU Bug Tracking System
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Message sent to bug-gnu-emacs@HIDDEN:

Subject: bug#27239: 25.1; grep: current symbol substitutes part of grep-command
Resent-From: Lars Ingebrigtsen <larsi@HIDDEN>
Original-Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org>
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To: Yuri Khan <yuri.v.khan@HIDDEN>
Cc: 27239 <at> debbugs.gnu.org
From: Lars Ingebrigtsen <larsi@HIDDEN>
References: <CAP_d_8UVfrjMcbP=q1WnUfGWHoT0oEV83SmZ1ck4siPdzjDTZg@HIDDEN>
Date: Sat, 12 Dec 2020 13:54:36 +0100
In-Reply-To: <CAP_d_8UVfrjMcbP=q1WnUfGWHoT0oEV83SmZ1ck4siPdzjDTZg@HIDDEN>
 (Yuri Khan's message of "Mon, 5 Jun 2017 00:48:30 +0700")
Message-ID: <87pn3f422b.fsf@HIDDEN>
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 Content preview:  Yuri Khan <yuri.v.khan@HIDDEN> writes: > $ emacs -Q > >
    (setq grep-command "git --no-pager grep --no-index -Hn -E -e ") C-x C-e >
    (setq grep-use-null-device nil) C-x C-e > > M-x grep RET > > =?UTF-8?Q?=E2=87=92?= Run grep
    (like this): git --no-pager grep -- [...] 
 
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Yuri Khan <yuri.v.khan@HIDDEN> writes:

> $ emacs -Q
>
> (setq grep-command "git --no-pager grep --no-index -Hn -E -e ") C-x C-e
> (setq grep-use-null-device nil) C-x C-e
>
> M-x grep RET
>
> =E2=87=92 Run grep (like this): git --no-pager grep --no-index -Hn -E -e
>
> <down>
>
> =E2=87=92 Run grep (like this): git --no-pager '' --no-index -Hn -E -e
>
> Observed behavior: =E2=80=98grep=E2=80=99 takes the last command from the=
 history and
> replaces the first argument that does not start with a hyphen-minus with
> the current symbol. This is not documented anywhere.

(This bug report unfortunately didn't get any response at the time.)

This behaviour is still present in Emacs 28.

> Expected behavior: It would probably make sense to just generate the new
> command by concatenating =E2=80=98grep-command=E2=80=99 and the current s=
ymbol, without
> any heuristics to remove the search pattern from the previous command.

Yes, I think so, too.  Anybody have an opinion here?

--=20
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no

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