From dc489d24e74db556a1e6f6fb57229ee81d14faf2 Mon Sep 17 00:00:00 2001
From: Henrik Lissner <henrik@lissner.net>
Date: Tue, 4 Aug 2020 14:58:13 -0400
Subject: [PATCH] bidi-inhibit-bpa = t

Speeds up redisplay a little, but possible at the expense of folks who
use Emacs for RTL languages.
---
 core/core.el | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/core/core.el b/core/core.el
index 7c65fddce..9fcaff288 100644
--- a/core/core.el
+++ b/core/core.el
@@ -279,6 +279,11 @@ config.el instead."
 (setq-default bidi-display-reordering 'left-to-right
               bidi-paragraph-direction 'left-to-right)
 
+;; Disabling the BPA makes redisplay faster, but might produce incorrect display
+;; reordering of bidirectional text with embedded parentheses and other bracket
+;; characters whose 'paired-bracket' Unicode property is non-nil.
+(setq bidi-inhibit-bpa t)  ; Emacs 27 only
+
 ;; Reduce rendering/line scan work for Emacs by not rendering cursors or regions
 ;; in non-focused windows.
 (setq-default cursor-in-non-selected-windows nil)