GNU bug report logs - #44418
28.0.50; Spliced variable not matched as symbol in isearch

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Mattias Engdegård <mattias.engdegard <at> gmail.com>
Cc: tracker <at> debbugs.gnu.org
Subject: bug#44418: closed (28.0.50; Spliced variable not matched as
 symbol in isearch)
Date: Thu, 22 Jun 2023 11:26:02 +0000

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Your message dated Thu, 22 Jun 2023 13:24:57 +0200
with message-id <ED116DE3-C771-4235-BC85-5EF0754A5616 <at> gmail.com>
and subject line Re: bug#44418: 28.0.50; Spliced variable not matched as symbol in isearch
has caused the debbugs.gnu.org bug report #44418,
regarding 28.0.50; Spliced variable not matched as symbol in isearch
to be marked as done.

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help-debbugs <at> gnu.org.)


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44418: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=44418
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[Message part 2 (message/rfc822, inline)]

From: "Basil L. Contovounesios" <contovob <at> tcd.ie>
To: bug-gnu-emacs <at> gnu.org
Subject: 28.0.50; Spliced variable not matched as symbol in isearch
Date: Tue, 03 Nov 2020 15:38:36 +0000

Severity: minor

0. emacs -Q
1. (let (x) `(,@x))
2. M-s _ x

This highlights the bound x, but not the spliced x.  The same happens
with 'M-s .' or the equivalent 'C-M-s'.

This is because lisp--mode-syntax-table gives 'prefix' syntax to ?, and
'symbol' syntax to ?@.  Is it possible to give 'prefix' syntax to ",@"
as a whole, and in general?

[This behaviour exists since at least as far back as Emacs 24.5.1.
 I wouldn't be surprised if this has been reported before,
 but my searches came up dry.]

Thanks,

-- 
Basil

In GNU Emacs 28.0.50 (build 1, x86_64-pc-linux-gnu, X toolkit, cairo version 1.16.0, Xaw3d scroll bars)
 of 2020-11-02 built on thunk
Repository revision: 95f7a2835a79c1f12b5dc86230405e8040910c72
Repository branch: master
Windowing system distributor 'The X.Org Foundation', version 11.0.12008000
System Description: Debian GNU/Linux bullseye/sid

Configured using:
 'configure 'CC=ccache gcc' 'CFLAGS=-O2 -march=native' --config-cache
 --prefix=/home/blc/.local --with-x-toolkit=lucid
 --with-file-notification=yes --with-x'

Configured features:
XAW3D XPM JPEG TIFF GIF PNG RSVG CAIRO SOUND 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 JSON PDUMPER LCMS2

Important settings:
  value of $LANG: en_IE.UTF-8
  value of $XMODIFIERS: @im=ibus
  locale-coding-system: utf-8-unix

Major mode: Lisp Interaction

Minor modes in effect:
  tooltip-mode: t
  global-eldoc-mode: t
  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

Load-path shadows:
None found.

Features:
(shadow sort mail-extr emacsbug message rmc puny dired dired-loaddefs
rfc822 mml easymenu mml-sec epa derived epg epg-config gnus-util rmail
rmail-loaddefs auth-source cl-seq eieio eieio-core cl-macs
eieio-loaddefs password-cache json map text-property-search time-date
subr-x seq byte-opt gv bytecomp byte-compile cconv mm-decode mm-bodies
mm-encode mail-parse rfc2231 mailabbrev gmm-utils mailheader cl-loaddefs
cl-lib sendmail rfc2047 rfc2045 ietf-drums mm-util mail-prsvr mail-utils
misearch multi-isearch 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 button loaddefs faces
cus-face macroexp files window 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 16 52709 5287)
 (symbols 48 6786 1)
 (strings 32 19027 1309)
 (string-bytes 1 616874)
 (vectors 16 12242)
 (vector-slots 8 168612 9829)
 (floats 8 23 45)
 (intervals 56 231 0)
 (buffers 992 10))

[Message part 3 (message/rfc822, inline)]

From: Mattias Engdegård <mattias.engdegard <at> gmail.com>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: Basil Contovounesios <contovob <at> tcd.ie>, 44418-done <at> debbugs.gnu.org,
 Lars Ingebrigtsen <larsi <at> gnus.org>, Stefan Monnier <monnier <at> iro.umontreal.ca>
Subject: Re: bug#44418: 28.0.50; Spliced variable not matched as symbol in
 isearch
Date: Thu, 22 Jun 2023 13:24:57 +0200

> Whether it was intended is not necessarily relevant.  It could be
> known long-standing behavior that became a de-facto standard.  Which
> is why I think we should call it out.

That's fine with me -- now done. Closing bug.

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