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bug#57804: An infinite loop in a `fontify-region' function causes Emacs
From: |
Ihor Radchenko |
Subject: |
bug#57804: An infinite loop in a `fontify-region' function causes Emacs to hang indefinitely |
Date: |
Thu, 15 Sep 2022 10:17:21 +0800 |
Eli Zaretskii <eliz@gnu.org> writes:
>> But like I said, three `C-g's without any idle time in between would be
>> the magical command to switch off font locking. I think that's hard to
>> do accidentally in normal circumstances.
>
> There's nothing accidental about my typing several C-g in a row. It
> just isn't related to any font-lock.
Org mode uses a similar method to catch rare edge cases and make users
report them. We make the user aware about possible reaction to multiple
C-g's using the following message:
`org-element--parse-buffer': Suppressed `\\[keyboard-quit]'. Press
`\\[keyboard-quit]' %d more times to force interruption.
The code goes like
(when (and inhibit-quit org-element--cache-interrupt-C-g quit-flag)
(when quit-flag
(cl-incf org-element--cache-interrupt-C-g-count)
(setq quit-flag nil))
(when (>= org-element--cache-interrupt-C-g-count
org-element--cache-interrupt-C-g-max-count)
(setq quit-flag t)
(setq org-element--cache-interrupt-C-g-count 0)
(org-element-cache-reset)
(error "org-element: Parsing aborted by user. Cache has been
cleared.
If you observe Emacs hangs frequently, please report this to Org mode mailing
list (M-x org-submit-bug-report)."))
(message (substitute-command-keys
"`org-element--parse-buffer': Suppressed
`\\[keyboard-quit]'. Press `\\[keyboard-quit]' %d more times to force
interruption.")
(- org-element--cache-interrupt-C-g-max-count
org-element--cache-interrupt-C-g-count)))
--
Ihor Radchenko,
Org mode contributor,
Learn more about Org mode at https://orgmode.org/.
Support Org development at https://liberapay.com/org-mode,
or support my work at https://liberapay.com/yantar92
- bug#57804: An infinite loop in a `fontify-region' function causes Emacs to hang indefinitely, Paul Pogonyshev, 2022/09/14
- bug#57804: An infinite loop in a `fontify-region' function causes Emacs to hang indefinitely, Lars Ingebrigtsen, 2022/09/14
- bug#57804: An infinite loop in a `fontify-region' function causes Emacs to hang indefinitely, Paul Pogonyshev, 2022/09/14
- bug#57804: An infinite loop in a `fontify-region' function causes Emacs to hang indefinitely, Lars Ingebrigtsen, 2022/09/14
- bug#57804: An infinite loop in a `fontify-region' function causes Emacs to hang indefinitely, Paul Pogonyshev, 2022/09/14
- bug#57804: An infinite loop in a `fontify-region' function causes Emacs to hang indefinitely, Eli Zaretskii, 2022/09/14
- bug#57804: An infinite loop in a `fontify-region' function causes Emacs to hang indefinitely, Lars Ingebrigtsen, 2022/09/14
- bug#57804: An infinite loop in a `fontify-region' function causes Emacs to hang indefinitely, Eli Zaretskii, 2022/09/14
- bug#57804: An infinite loop in a `fontify-region' function causes Emacs to hang indefinitely,
Ihor Radchenko <=
- bug#57804: An infinite loop in a `fontify-region' function causes Emacs to hang indefinitely, Gregory Heytings, 2022/09/14
- bug#57804: An infinite loop in a `fontify-region' function causes Emacs to hang indefinitely, Paul Pogonyshev, 2022/09/15
- bug#57804: An infinite loop in a `fontify-region' function causes Emacs to hang indefinitely, Gregory Heytings, 2022/09/15
- bug#57804: An infinite loop in a `fontify-region' function causes Emacs to hang indefinitely, Paul Pogonyshev, 2022/09/15
- bug#57804: An infinite loop in a `fontify-region' function causes Emacs to hang indefinitely, Gregory Heytings, 2022/09/15
- bug#57804: An infinite loop in a `fontify-region' function causes Emacs to hang indefinitely, Paul Pogonyshev, 2022/09/15
- bug#57804: An infinite loop in a `fontify-region' function causes Emacs to hang indefinitely, Gregory Heytings, 2022/09/15
- bug#57804: An infinite loop in a `fontify-region' function causes Emacs to hang indefinitely, Paul Pogonyshev, 2022/09/15
- bug#57804: An infinite loop in a `fontify-region' function causes Emacs to hang indefinitely, Eli Zaretskii, 2022/09/15
- bug#57804: An infinite loop in a `fontify-region' function causes Emacs to hang indefinitely, Paul Pogonyshev, 2022/09/15