* bug#27239: 25.1; grep: current symbol substitutes part of grep-command
@ 2017-06-04 17:48 Yuri Khan
2020-12-12 12:54 ` Lars Ingebrigtsen
0 siblings, 1 reply; 2+ messages in thread
From: Yuri Khan @ 2017-06-04 17:48 UTC (permalink / raw)
To: 27239
$ 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
⇒ Run grep (like this): git --no-pager grep --no-index -Hn -E -e
<down>
⇒ Run grep (like this): git --no-pager '' --no-index -Hn -E -e
Observed behavior: ‘grep’ 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.
Expected behavior: It would probably make sense to just generate the new
command by concatenating ‘grep-command’ and the current symbol, 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=/usr
--sharedstatedir=/var/lib --libexecdir=/usr/lib
--localstatedir=/var/lib --infodir=/usr/share/info
--mandir=/usr/share/man --with-pop=yes
--enable-locallisppath=/etc/emacs25:/etc/emacs:/usr/local/share/emacs/25.1/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/25.1/site-lisp:/usr/share/emacs/site-lisp
--with-sound=alsa --build x86_64-linux-gnu --prefix=/usr
--sharedstatedir=/var/lib --libexecdir=/usr/lib
--localstatedir=/var/lib --infodir=/usr/share/info
--mandir=/usr/share/man --with-pop=yes
--enable-locallisppath=/etc/emacs25:/etc/emacs:/usr/local/share/emacs/25.1/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/25.1/site-lisp:/usr/share/emacs/site-lisp
--with-sound=alsa --with-x=yes --with-x-toolkit=gtk3
--with-toolkit-scroll-bars 'CFLAGS=-g -O2 -fstack-protector-strong
-Wformat -Werror=format-security -Wall' 'CPPFLAGS=-Wdate-time
-D_FORTIFY_SOURCE=2' 'LDFLAGS=-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))
^ permalink raw reply [flat|nested] 2+ messages in thread
* bug#27239: 25.1; grep: current symbol substitutes part of grep-command
2017-06-04 17:48 bug#27239: 25.1; grep: current symbol substitutes part of grep-command Yuri Khan
@ 2020-12-12 12:54 ` Lars Ingebrigtsen
0 siblings, 0 replies; 2+ messages in thread
From: Lars Ingebrigtsen @ 2020-12-12 12:54 UTC (permalink / raw)
To: Yuri Khan; +Cc: 27239
Yuri Khan <yuri.v.khan@gmail.com> 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
>
> ⇒ Run grep (like this): git --no-pager grep --no-index -Hn -E -e
>
> <down>
>
> ⇒ Run grep (like this): git --no-pager '' --no-index -Hn -E -e
>
> Observed behavior: ‘grep’ 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 ‘grep-command’ and the current symbol, without
> any heuristics to remove the search pattern from the previous command.
Yes, I think so, too. Anybody have an opinion here?
--
(domestic pets only, the antidote for overdose, milk.)
bloggy blog: http://lars.ingebrigtsen.no
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2017-06-04 17:48 bug#27239: 25.1; grep: current symbol substitutes part of grep-command Yuri Khan
2020-12-12 12:54 ` Lars Ingebrigtsen
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