bug#40224: 26.3; highlight-symbol-at-point does not cover entire buffer

bug#40224: 26.3; highlight-symbol-at-point does not cover entire buffer

[Lasse Halberg Haarbye via Bug reports for GNU Emacs, the Swiss army knife of text editors]

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In a buffer with about 2000 lines, highlighting words at the top of the
buffer with highlight-symbol-at-point does not have any effect way down
the buffer. It stops highlighting at about 1500 lines. The bug
happens with emacs -Q as well.


In GNU Emacs 26.3 (build 1, x86_64-w64-mingw32)
of 2019-08-29 built on CIRROCUMULUS
Repository revision: 96dd0196c28bc36779584e47fffcca433c9309cd
Windowing system distributor 'Microsoft Corp.', version 10.0.18362
Recent messages:
scroll-up-command: End of buffer [13 times]
Mark set [3 times]
scroll-up-command: End of buffer [14 times]
Mark set
Mark saved where search started [2 times]
Mark set
Mark saved where search started
M-s h . runs the command highlight-symbol-at-point
Quit
C-h > is undefined

Configured using:
'configure --without-dbus --host=x86_64-w64-mingw32
--without-compress-install 'CFLAGS=-O2 -static -g3''

Configured features:
XPM JPEG TIFF GIF PNG RSVG SOUND NOTIFY ACL GNUTLS LIBXML2 ZLIB
TOOLKIT_SCROLL_BARS THREADS LCMS2

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

Major mode: Info

Minor modes in effect:
  global-magit-file-mode: t
  magit-auto-revert-mode: t
  global-git-commit-mode: t
  async-bytecomp-package-mode: t
  diff-auto-refine-mode: t
  shell-dirtrack-mode: t
  doom-modeline-mode: t
  global-auto-revert-mode: t
  linum-mode: t
  my-global-linum-mode: t
  show-paren-mode: t
  global-flycheck-mode: t
  projectile-mode: t
  helm-mode: t
  helm--remap-mouse-mode: t
  delete-selection-mode: t
  electric-pair-mode: t
  yas-global-mode: t
  yas-minor-mode: t
  global-company-mode: t
  company-mode: t
  TeX-PDF-mode: t
  override-global-mode: t
  tooltip-mode: t
  global-eldoc-mode: t
  electric-indent-mode: t
  mouse-wheel-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
  buffer-read-only: t
  column-number-mode: t
  line-number-mode: t
  transient-mark-mode: t

Load-path shadows:
c:/Users/lahh/AppData/Roaming/.emacs.d/elpa/company-cmake-0.1/company-cmake hides c:/Users/lahh/AppData/Roaming/.emacs.d/elpa/company-20191106.2247/company-cmake

Features:
(shadow sort mail-extr emacsbug sendmail helm-command hi-lock cc-mode
cc-fonts cc-guess cc-menus cc-cmds cc-styles cc-align cc-engine cc-vars
cc-defs bug-reference hl-line ace-jump-mode ido misearch multi-isearch
sql view face-remap git-rebase magit-extras magit-submodule
magit-obsolete magit-blame magit-stash magit-reflog magit-bisect
magit-push magit-pull magit-fetch magit-clone magit-remote magit-commit
magit-sequence magit-notes magit-worktree magit-tag magit-merge
magit-branch magit-reset magit-files magit-refs magit-status magit
magit-repos magit-apply magit-wip magit-log which-func magit-diff
smerge-mode magit-core magit-autorevert magit-margin magit-transient
magit-process magit-mode git-commit transient magit-git magit-section
magit-utils log-edit message rmc puny rfc822 mml mml-sec epa epg
gnus-util rmail rmail-loaddefs mm-decode mm-bodies mm-encode mail-parse
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helm-net xml url url-proxy url-privacy url-expand url-methods
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haskell-utils haskell-font-lock haskell-indentation haskell-string
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company-bibtex parsebib bibtex company-auctex haskell-snippets
yasnippet-snippets yasnippet elec-pair company-arduino company-c-headers
company-ansible company-ansible-keywords company-irony irony-completion
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eieio eieio-core cl-macs eieio-loaddefs password-cache url-vars seq
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base64 format env code-pages mule custom widget hashtable-print-readable
backquote threads w32notify w32 lcms2 multi-tty make-network-process
emacs)

Memory information:
((conses 16 929042 133605)
(symbols 48 55665 2)
(miscs 40 3092 804)
(strings 32 213709 18047)
(string-bytes 1 8303079)
(vectors 16 101542)
(vector-slots 8 2286565 212876)
(floats 8 830 830)
(intervals 56 46507 2694)
(buffers 992 33))

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bug#40224: 26.3; highlight-symbol-at-point does not cover entire buffer

[Eli Zaretskii]

> Date: Wed, 25 Mar 2020 15:24:27 +0000
> From: Lasse Halberg Haarbye via "Bug reports for GNU Emacs,
>  the Swiss army knife of text editors" <bug-gnu-emacs@gnu.org>
> 
> In a buffer with about 2000 lines, highlighting words at the top of the
> buffer with highlight-symbol-at-point does not have any effect way down
> the buffer. It stops highlighting at about 1500 lines. The bug
> happens with emacs -Q as well.

Can you show a detailed recipe, including the file you use for this?
I tried reproducing, but I don't think I succeeded.  So there must be
something that I did wrong.

Thanks.

bug#40224: 26.3; highlight-symbol-at-point does not cover entire buffer

[Juri Linkov]

> In a buffer with about 2000 lines, highlighting words at the top of the
> buffer with highlight-symbol-at-point does not have any effect way down
> the buffer. It stops highlighting at about 1500 lines. The bug
> happens with emacs -Q as well.

Please try to increase the number in M-x customize-variable RET
hi-lock-highlight-range

bug#40224: 26.3; highlight-symbol-at-point does not cover entire buffer

[Lasse Halberg Haarbye via Bug reports for GNU Emacs, the Swiss army knife of text editors]

That did the trick. It was already quite high (20k) so I guess it refers to the number of characters and not lines.


-----Original Message-----
From: Juri Linkov <juri@linkov.net> 
Sent: 25. marts 2020 21:20
To: Lasse Halberg Haarbye <lahh@netcompany.com>
Cc: 40224@debbugs.gnu.org
Subject: Re: bug#40224: 26.3; highlight-symbol-at-point does not cover entire buffer

> In a buffer with about 2000 lines, highlighting words at the top of 
> the buffer with highlight-symbol-at-point does not have any effect way 
> down the buffer. It stops highlighting at about 1500 lines. The bug 
> happens with emacs -Q as well.

Please try to increase the number in M-x customize-variable RET hi-lock-highlight-range

bug#40224: 26.3; highlight-symbol-at-point does not cover entire buffer

[Juri Linkov]

> That did the trick.  It was already quite high (20k) so I guess it
> refers to the number of characters and not lines.

Yes, it refers to the number of characters.

I propose to bump the default value from 200KB to 2MB:

diff --git a/lisp/hi-lock.el b/lisp/hi-lock.el
index 9173b66b7f..b4c758ebf4 100644
--- a/lisp/hi-lock.el
+++ b/lisp/hi-lock.el
@@ -102,7 +102,7 @@ hi-lock-file-patterns-range
   :type 'integer
   :group 'hi-lock)
 
-(defcustom hi-lock-highlight-range 200000
+(defcustom hi-lock-highlight-range 2000000
   "Size of area highlighted by hi-lock when font-lock not active.
 Font-lock is not active in buffers that do their own highlighting,
 such as the buffer created by `list-colors-display'.  In those buffers

bug#40224: 26.3; highlight-symbol-at-point does not cover entire buffer

[Juri Linkov]

tags 40224 fixed
close 40224 28.0.50
thanks

>> That did the trick.  It was already quite high (20k) so I guess it
>> refers to the number of characters and not lines.
>
> Yes, it refers to the number of characters.
>
> I propose to bump the default value from 200KB to 2MB:

So now changed in master and closed.