Subject: bug#45114: perl-mode warns about mismatched parentheses wrongly

From: Eli Zaretskii <[email-masked]>
Date: Tue, 08 Dec 2020 08:23:25 +0200

On December 8, 2020 7:45:03 AM GMT+02:00, "積丹尼 Dan Jacobson" <[email-masked]> wrote:
> $ emacs file.pl # and start typing
> if(/^[^}]/) ...
> 
> During the process you will get spurious warnings about mismatched
> parentheses etc.
> 
> emacs-version "27.1"

This is a well documented feature.  If you don't like it, turn off blink-matching-paren.