From: No Wayman <iarchivedmywholelife@gmail.com>
To: Noam Postavsky <npostavs@gmail.com>
Cc: 39805@debbugs.gnu.org
Subject: bug#39805: 28.0.50; scan-sexps (scan_lists) incorrectly parsing circular list
Date: Thu, 27 Feb 2020 12:22:34 -0500 [thread overview]
Message-ID: <87mu94kkrq.fsf@gmail.com> (raw)
In-Reply-To: <87pne0ajy3.fsf@gmail.com>
Noam Postavsky <npostavs@gmail.com> writes:
> It doesn't fail if the buffer is changed to emacs-lisp-mode
> before the
> pp-buffer call.
In the meantime, I'd like to be able to offer the users of my
package a solution if they hit this bug.
This seems to work for me, but I haven't written much, and am a
bit leery of, elisp advice.
Would you consider this an appropriate workaround?:
(defun workaround/describe-variable-print-bug (original-function
&rest args)
"Put temp buffer in emacs-lisp before ORIGINAL-FUNCTION:
`pp-buffer'.
https://lists.gnu.org/archive/html/emacs-bug-tracker/2020-02/msg00376.html"
(cl-flet ((pp-advice (original-function)
(when (string-prefix-p " *temp"
(buffer-name))
(let ((mm major-mode))
(emacs-lisp-mode)
(funcall original-function)
(funcall mm)))))
(advice-add #'pp-buffer :around #'pp-advice)
(unwind-protect
(progn
(apply original-function args)
nil)
(advice-remove #'pp-buffer #'pp-advice))))
(advice-add #'describe-variable :around
#'workaround/describe-variable-print-bug)
next prev parent reply other threads:[~2020-02-27 17:22 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-26 21:33 bug#39805: 28.0.50; scan-sexps (scan_lists) incorrectly parsing circular list No Wayman
2020-02-27 1:38 ` Noam Postavsky
2020-02-27 17:22 ` No Wayman [this message]
2020-02-28 2:34 ` Noam Postavsky
2020-02-28 4:01 ` No Wayman
2020-03-04 3:09 ` Noam Postavsky
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