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

From: Eli Zaretskii <[email-masked]>
Date: Wed, 19 Feb 2020 19:47:42 +0200

> From: Mattias Engdegård <[email-masked]>
> Date: Tue, 18 Feb 2020 23:09:06 +0100
> Cc: Robert Pluim <[email-masked]>, [email-masked], [email-masked]
> 
> On Tue, Feb 18, 2020 at 06:08:55PM +0200, Eli Zaretskii wrote:
> 
> > 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).
> 
> The profiler didn't show anything, but according to gdb/lldb, there is something going on in the bidi bracket code. Every time I hook on a debugger, the stack is like this:
> 
>   * frame #0: 0x000000010dcc41b2 emacs`bidi_find_bracket_pairs(bidi_it=0x00007ffee1fdd610) at bidi.c:2572:12 [opt]
>     frame #1: 0x000000010dcc3c1f emacs`bidi_resolve_brackets(bidi_it=0x00007ffee1fdd610) at bidi.c:2856:13 [opt]

Ah, yes.  Set bidi-inhibit-bpa non-nil, and Bob's your uncle.