[Octave-bug-tracker] [bug #51589] crash on regexp

[Mike Miller]

Follow-up Comment #2, bug #51589 (project octave):

Yeah I can easily reproduce this crash with a pathological test case like the
following:


subject = repmat ('a', 1, 1e5);  ## a very long string of aaaa...
pattern = '(a)+';
[S, E, TE, M, T, NM, SP] = regexp (subject, pattern)


It might be possible to experiment with the pcre settings on limiting
recursion to see if that helps, to avoid a segfault, but I don't know what
impact that has on performance or getting the results that the user wanted.

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