Subject: bug#64128: regexp parser zero-width assertion bugs

From: Mattias Engdegård <[email-masked]>
Date: Wed, 21 Jun 2023 17:57:29 +0200

21 juni 2023 kl. 08.08 skrev Paul Eggert <[email-masked]>:

>> Sounds fine, with the option to go full error on group B if we agree that that's even better.
> 
> That would be fine too. I'd even prefer it. In the meantime your patch looks good.

Good, it's now in master. Let's think about whether an error can be motivated, and how.
We usually don't prevent the user to do silly things, except when there is a strong reason to believe that it might be a serious mistake.