GNU bug report logs - #76767
30.1; lgrep doesn't protect regex with -- before

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

From: Joel Reicher <joel.reicher <at> gmail.com>
To: bug-gnu-emacs <at> gnu.org
Subject: 30.1; lgrep doesn't protect regex with -- before
Date: Thu, 06 Mar 2025 13:02:46 +1100

If the search string begins with `-' the string is interpreted as a flag to grep.


In GNU Emacs 30.1 (build 2, x86_64-w64-mingw32) of 2025-02-24 built on
 AVALON
Windowing system distributor 'Microsoft Corp.', version 10.0.26100
System Description: Microsoft Windows 10 Home (v10.0.2009.26100.3194)

Configured using:
 'configure --with-modules --without-dbus
 --with-native-compilation=aot --without-compress-install
 --with-tree-sitter CFLAGS=-O2 prefix=/g/rel/install/emacs-30.1'
Configured features:
ACL GIF GMP GNUTLS HARFBUZZ JPEG LCMS2 LIBXML2 MODULES NATIVE_COMP
NOTIFY W32NOTIFY PDUMPER PNG RSVG SOUND SQLITE3 THREADS TIFF
TOOLKIT_SCROLL_BARS TREE_SITTER WEBP XPM ZLIB
(NATIVE_COMP present but libgccjit not available)

Important settings:
  value of $LANG: ENA
  locale-coding-system: cp1252

Major mode: Info

Minor modes in effect:
  erc-track-mode: t
  erc-track-minor-mode: t
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  erc-netsplit-mode: t
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  erc-match-mode: t
  erc-log-mode: t
  erc-list-mode: t
  erc-irccontrols-mode: t
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  erc-keep-place-mode: t
  erc-readonly-mode: t
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  erc-autojoin-mode: t
  erc-autoaway-mode: t
  erc-networks-mode: t
  server-mode: t
  electric-pair-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
  isearch-fold-quotes-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  blink-cursor-mode: t
  minibuffer-regexp-mode: t
  buffer-read-only: t
  column-number-mode: t
  line-number-mode: t
  transient-mark-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t

Load-path shadows:
c:/Users/joelr/Google Drive/.emacs.d/elpa/eglot-1.18/eglot hides c:/Program Files/Emacs/emacs-30.1/share/emacs/30.1/lisp/progmodes/eglot

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Memory information:
((conses 16 2912136 538970) (symbols 48 52789 5)
 (strings 32 341924 35439) (string-bytes 1 12152731)
 (vectors 16 119633) (vector-slots 8 2322781 480894)
 (floats 8 936 14914) (intervals 56 229773 21890) (buffers 992 140))

Message #8 received at 76767 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: Joel Reicher <joel.reicher <at> gmail.com>
Cc: 76767 <at> debbugs.gnu.org
Subject: Re: bug#76767: 30.1; lgrep doesn't protect regex with -- before
Date: Thu, 06 Mar 2025 09:38:50 +0200

> From: Joel Reicher <joel.reicher <at> gmail.com>
> Date: Thu, 06 Mar 2025 13:02:46 +1100
> 
> 
> If the search string begins with `-' the string is interpreted as a flag to grep.

You should be able to solve this if you invoke lgrep with C-u or with
"C-u C-u".

I'm not sure it is easy to always protect the regexp, since (1) we use
grep-template used by many other related commands, and also because
lgrep uses --exclude and --include options, so the "--" you asked for
cannot be before those options we add.

Message #11 received at 76767 <at> debbugs.gnu.org (full text, mbox):

From: Andreas Schwab <schwab <at> linux-m68k.org>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: 76767 <at> debbugs.gnu.org, Joel Reicher <joel.reicher <at> gmail.com>
Subject: Re: bug#76767: 30.1; lgrep doesn't protect regex with -- before
Date: Thu, 06 Mar 2025 09:07:45 +0100

On Mär 06 2025, Eli Zaretskii wrote:

>> From: Joel Reicher <joel.reicher <at> gmail.com>
>> Date: Thu, 06 Mar 2025 13:02:46 +1100
>> 
>> 
>> If the search string begins with `-' the string is interpreted as a flag to grep.
>
> You should be able to solve this if you invoke lgrep with C-u or with
> "C-u C-u".
>
> I'm not sure it is easy to always protect the regexp, since (1) we use
> grep-template

grep-template already prefixes the regexp with -e, so I don't understand
why the problem exists.

-- 
Andreas Schwab, schwab <at> linux-m68k.org
GPG Key fingerprint = 7578 EB47 D4E5 4D69 2510  2552 DF73 E780 A9DA AEC1
"And now for something completely different."

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