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bug#39658: 26.3; can't edit file with terminal escape sequences


From: Eli Zaretskii
Subject: bug#39658: 26.3; can't edit file with terminal escape sequences
Date: Tue, 18 Feb 2020 18:08:55 +0200

> Date: Tue, 18 Feb 2020 05:48:59 -0800
> From: address@hidden
> 
> To reproduce, open the attached file in Emacs, and type C-x C-n. On my system 
> Emacs uses 100% of CPU, indefinitely.

On my system, visiting this file takes 36 sec of CPU time.  Which is
long, but is not indefinitely.

If someone wants to investigate this case, I'd start with visiting the
file after "M-x profiler-start".  Then look at the hot spot(s).





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