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bug#34910: 27.0.50; Too much matching reentrancy

From: Mattias Engdegård
Subject: bug#34910: 27.0.50; Too much matching reentrancy
Date: Sat, 30 Mar 2019 14:05:50 +0100

30 mars 2019 kl. 13.55 skrev Stefan Monnier <address@hidden>:
> It was probably just an oversight, because whether we're searching
> within strings or within buffers the same problems appear with \{N\}
> repetitions (where the counter is stored directly inside the
> regexp-byte-code) and with on-the-fly strength-reduction (where we
> replace some byte-code with cheaper ones (where applicable) on the first
> pass through the regexp).

Is the reentrancy just in preparation for future needs, or is it possible to 
re-enter the regexp code right now?

If the latter, we may just as well fix the string case here and now; otherwise, 
I'd like to close the bug.

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