Subject: Re: bug#61514: 30.0.50; sadistically long xml line hangs emacs

From: Gregory Heytings <[email-masked]>
Date: Mon, 20 Feb 2023 17:34:45 +0000

>
> I simplified it down to:
>
> (with-current-buffer (get-buffer-create "*bug*")
>  (erase-buffer)
>  (insert (make-string 266666 ?n))
>  (goto-char (point-min))
>  (looking-at "[[:alpha:]]*=*"))
>
> This fails with 266666, and succeeds with 266665.
>

Even shorter:

(with-current-buffer (get-buffer-create "*bug*")
   (erase-buffer)
   (insert (make-string 266666 ?x))
   (goto-char (point-min))
   (looking-at "x*=*"))

Again this fails with 266666, and succeeds with 266665.

Likewise:

(with-current-buffer (get-buffer-create "*bug*")
   (erase-buffer)
   (insert (make-string 266666 ?x))
   (insert "=")
   (goto-char (point-min))
   (looking-at "x*=*"))

fails with 266666 and succeeds with 266665.