Dave Horsfall <dave(a)horsfall.org> writes:
On Tue, 21 May 2024, Paul Winalski wrote:
To take an example that really happened, a fuzz
test consisting
of 100
nested parentheses caused an overflow in a parser table (it
could only
handle 50 nested parens). Is that worth fixing?
Well, they could be a rabid LISP programmer...
Just did a quick check of some of the ELisp packages on my system:
* For my own packages, the maximum was 10 closing parentheses.
* For the packages in my elpa/ directory, the maximum was 26 in
ducpel-glyphs.el, where they were part of a glyph, rather than
delimiting code. The next highest value was 16, in org.el and
magit-sequence.el.
i would suggest that any Lisp with more than a couple of dozen
closing parentheses is in dire need of refactoring. Although of
course someone who's rabid is probably not in the appropriate
mental state for that. :-)
Alexis.