GNU bug report logs - #68646
30.0.50; ERC 5.x: erc-channel-hide-list doesn't hide certain messages

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

From: "J.P." <jp <at> neverwas.me>
To: bug-gnu-emacs <at> gnu.org
Subject: 30.0.50; ERC 5.x: erc-channel-hide-list doesn't hide certain messages
Date: Sun, 21 Jan 2024 11:56:16 -0800

Tags: easy, help

From emacs -Q:

  1. (setopt erc-channel-hide-list '(("#chan" "NICK" "353")))
  2. M-x erc RET ... RET
  3. /JOIN #chan
  4. Notice the names manifest and nick changes still appear

Hints:

- How do `erc-server-353' and `erc-server-NICK' find the right
  buffer(s) to print their messages in?

- How does `erc-hide-current-message-p' find the channel name to filter
  against?

- Would allowing `erc-hide-current-message-p' to accept an optional
  `buffer' argument help? What if `erc-display-message' were to call
  something like an `erc--hide-current-message-p' instead of
  `erc-hide-current-message-p'? Any downsides to such indirection?

- How might we write a test to demonstrate the current buggy behavior?

Although fixing this specific issue is relatively easy and very much
welcome, a comprehensive overhaul of all `erc-ignore' related
functionality would be even more welcome but is admittedly also more
involved. (BTW, please only share answers to the hint questions above
if you're willing to take on this bug.)


In GNU Emacs 30.0.50 (build 1, x86_64-pc-linux-gnu, GTK+ Version
 3.24.38, cairo version 1.17.6) of 2024-01-04 built on localhost
Repository revision: 1081e975c9370999df1a288b117bfd9053050d21
Repository branch: master
Windowing system distributor 'The X.Org Foundation', version 11.0.12014000
System Description: Fedora Linux 37 (Workstation Edition)

Configured using:
 'configure --enable-check-lisp-object-type --enable-checking=yes,glyphs
 'CFLAGS=-O0 -g3'
 PKG_CONFIG_PATH=:/usr/lib64/pkgconfig:/usr/share/pkgconfig'

Configured features:
ACL CAIRO DBUS FREETYPE GIF GLIB GMP GNUTLS GPM GSETTINGS HARFBUZZ JPEG
JSON LCMS2 LIBOTF LIBSELINUX LIBSYSTEMD LIBXML2 M17N_FLT MODULES
NATIVE_COMP NOTIFY INOTIFY PDUMPER PNG RSVG SECCOMP SOUND SQLITE3
THREADS TIFF TOOLKIT_SCROLL_BARS WEBP X11 XDBE XIM XINPUT2 XPM GTK3 ZLIB

Important settings:
  value of $LANG: en_US.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
  show-paren-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
  minibuffer-regexp-mode: t
  line-number-mode: t
  indent-tabs-mode: t
  transient-mark-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t

Load-path shadows:
None found.

Features:
(shadow sort mail-extr emacsbug message mailcap yank-media puny dired
dired-loaddefs rfc822 mml mml-sec epa epg rfc6068 epg-config gnus-util
time-date mm-decode mm-bodies mm-encode mail-parse rfc2231 mailabbrev
gmm-utils mailheader sendmail rfc2047 rfc2045 ietf-drums mm-util
mail-prsvr mail-utils compile text-property-search comint ansi-osc
ansi-color ring comp-run comp-common erc derived auth-source eieio
eieio-core password-cache json map format-spec erc-backend erc-networks
easy-mmode byte-opt bytecomp byte-compile erc-common inline cl-extra
help-mode erc-compat cl-seq cl-macs gv pcase rx subr-x cl-loaddefs
cl-lib erc-loaddefs rmc iso-transl tooltip cconv eldoc paren electric
uniquify ediff-hook vc-hooks lisp-float-type elisp-mode mwheel
term/x-win x-win term/common-win x-dnd touch-screen tool-bar dnd fontset
image regexp-opt fringe tabulated-list replace newcomment text-mode
lisp-mode prog-mode register page tab-bar menu-bar rfn-eshadow isearch
easymenu timer select scroll-bar mouse jit-lock font-lock syntax
font-core term/tty-colors frame minibuffer nadvice seq simple cl-generic
indonesian philippine 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 emoji-zwj charscript charprop case-table epa-hook
jka-cmpr-hook help abbrev obarray oclosure cl-preloaded button loaddefs
theme-loaddefs faces cus-face macroexp files window text-properties
overlay sha1 md5 base64 format env code-pages mule custom widget keymap
hashtable-print-readable backquote threads dbusbind inotify lcms2
dynamic-setting system-font-setting font-render-setting cairo gtk
x-toolkit xinput2 x multi-tty move-toolbar make-network-process
native-compile emacs)

Memory information:
((conses 16 149907 11404) (symbols 48 11361 0) (strings 32 27740 4779)
 (string-bytes 1 971593) (vectors 16 17647)
 (vector-slots 8 310679 13296) (floats 8 27 25) (intervals 56 330 0)
 (buffers 976 12))

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Copyright (C) 1999 Darren O. Benham, 1997,2003 nCipher Corporation Ltd, 1994-97 Ian Jackson.