GNU bug report logs - #59023
26.1; Setting find-name-arg to -regex breaks dired-do-find-regexp and dired-do-find-regexp-and-replace

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

From: renke.vonseggern <at> gmx.de
To: bug-gnu-emacs <at> gnu.org
Subject: 26.1; Setting find-name-arg to -regex breaks dired-do-find-regexp
 and dired-do-find-regexp-and-replace
Date: Fri, 4 Nov 2022 19:01:43 +0100

In GNU Emacs 26.1 (build 2, x86_64-pc-linux-gnu, GTK+ Version 3.24.5)
 of 2021-01-31, modified by Debian built on x86-csail-01
Windowing system distributor 'The X.Org Foundation', version 11.0.12004000
System Description:	Debian GNU/Linux 10 (buster)

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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 --enable-libsystemd --with-pop=yes
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 --with-sound=alsa --without-gconf --with-mailutils --build
 x86_64-linux-gnu --prefix=/usr --sharedstatedir=/var/lib
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 --infodir=/usr/share/info --mandir=/usr/share/man --enable-libsystemd
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 -Wformat -Werror=format-security -Wall' 'CPPFLAGS=-Wdate-time
 -D_FORTIFY_SOURCE=2' LDFLAGS=-Wl,-z,relro'

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

Important settings:
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  value of $LC_TIME: POSIX
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  value of $XMODIFIERS: @im=ibus
  locale-coding-system: utf-8-unix

Major mode: Dired by name

Minor modes in effect:
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Load-path shadows:
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/home/renke/.emacs.d/elpa/map-3.2.1/map hides /usr/share/emacs/26.1/lisp/emacs-lisp/map

Features:
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Memory information:
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 (symbols 48 38310 1)
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 (strings 32 107674 6592)
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 (vectors 16 45235)
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 (buffers 992 57))
--text follows this line--

Hello,

setting the variable "find-name-arg" to "-regex" (as opposed to the
default "-name") causes "dired-do-find-regexp" and
"dired-do-find-regexp-and-replace" to falsely report that no matches
were found, even though the selected files clearly contain the search
string.

Steps to reproduce:
1. Create a file containing the string "hello".
2. Set the variable "find-name-arg" to "-regex" via Easy Customization.
3. Visit the directory containing the file created in step 1 in dired.
4. Mark the file created in step 1 in dired.
5a. Execute "dired-do-find-regexp" on the marked file by pressing "A"
    and enter "hello" in the prompt.
    => Function reports "user-error: No matches for: hello" but I
       expected it to open an "*xref*" buffer listing the file created
       in step 1.
5b. Execute "dired-do-find-regexp-and-replace" on the marked file by
    pressing "Q", enter "hello" in the first prompt and an arbitrary
    replacement string in the second prompt.
    => Function reports "user-error: No matches for: hello" but I
       expected it to open the file created in step 1 with the option to
       replace "hello" with the replacement string.

Kind regards

Renke

Message #10 received at 59023-done <at> debbugs.gnu.org (full text, mbox):

From: Dmitry Gutov <dgutov <at> yandex.ru>
To: renke.vonseggern <at> gmx.de, 59023-done <at> debbugs.gnu.org
Subject: Re: bug#59023: 26.1; Setting find-name-arg to -regex breaks
 dired-do-find-regexp and dired-do-find-regexp-and-replace
Date: Mon, 14 Nov 2022 02:27:54 +0200

Hi!

On 04.11.2022 20:01, renke.vonseggern <at> gmx.de wrote:
> Steps to reproduce:
> 1. Create a file containing the string "hello".
> 2. Set the variable "find-name-arg" to "-regex" via Easy Customization.
> 3. Visit the directory containing the file created in step 1 in dired.
> 4. Mark the file created in step 1 in dired.
> 5a. Execute "dired-do-find-regexp" on the marked file by pressing "A"
>      and enter "hello" in the prompt.
>      => Function reports "user-error: No matches for: hello" but I
>         expected it to open an "*xref*" buffer listing the file created
>         in step 1.
> 5b. Execute "dired-do-find-regexp-and-replace" on the marked file by
>      pressing "Q", enter "hello" in the first prompt and an arbitrary
>      replacement string in the second prompt.
>      => Function reports "user-error: No matches for: hello" but I
>         expected it to open the file created in step 1 with the option to
>         replace "hello" with the replacement string.

Thanks for the report. It seems we shouldn't use the customized value in 
project--files-in-directory, just the base value.

I've pushed the fix to master, it should appear in GNU ELPA soon as 
well, in 'project' version 0.8.3.

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