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bug#24315: 25.1.50; re-search-forward errors with "Variable binding dept

From: npostavs
Subject: bug#24315: 25.1.50; re-search-forward errors with "Variable binding depth exceeds max-specpdl-size"
Date: Sat, 03 Sep 2016 10:21:16 -0400
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/25.1 (gnu/linux)

# the new bug will be about the specdl error
clone 24315 -1
# this bug is about the bad regex in icalendar
retitle 24315 icalendar--read-element uses inefficient regexp

address@hidden (Peder O. Klingenberg) writes:
>  Updated patch attached.
> Subject: [PATCH] Avoid crash in icalendar--read-element
> * lisp/calendar/icalendar.el (icalendar--read-element): Stop crashing
> when parsing overly long event descriptions.  (Bug#24315)

Patch looks good, though I think the description shouldn't say "crash",
since the problem is a regex stack overflow, which is just a normal
Emacs error (I've figured out the reason why it's triggering
max-specpdl-size instead of regex stack overflow in master, and will
address it in a separate bug).

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