From 5b378b988a9f3c350f1687a99445a80ebde7ab68 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?C=C3=A9leste=20Wouters?= <foss@elementw.net>
Date: Wed, 22 May 2024 11:23:55 +0200
Subject: [PATCH] Fix colors not being reset on accept w/ recent ZSH (fixes
 #789)

The ZSH manual describes `region_highlight` as being an array in
https://zsh.sourceforge.io/Doc/Release/Zsh-Line-Editor.html#Character-Highlighting,
therefore the previous strategy of removing as many characters as the
last suggestion is *not* the way to do it, explaining why it broke on
recent ZSH versions.

Replace this logic with a simple last-element delete. Keeps the
`_ZSH_AUTOSUGGEST_LAST_HIGHLIGHT` variable intact since there's no
downside in tracking its content, as it still used as a marker for
whether a suggestion highlight was applied.
---
 src/highlight.zsh       | 4 +++-
 zsh-autosuggestions.zsh | 4 +++-
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/src/highlight.zsh b/src/highlight.zsh
index 273c03d..4dfc660 100644
--- a/src/highlight.zsh
+++ b/src/highlight.zsh
@@ -8,7 +8,9 @@ _zsh_autosuggest_highlight_reset() {
 	typeset -g _ZSH_AUTOSUGGEST_LAST_HIGHLIGHT
 
 	if [[ -n "$_ZSH_AUTOSUGGEST_LAST_HIGHLIGHT" ]]; then
-		region_highlight=("${(@)region_highlight:#$_ZSH_AUTOSUGGEST_LAST_HIGHLIGHT}")
+		if (( $#region_highlight )); then
+			shift -p region_highlight
+		fi
 		unset _ZSH_AUTOSUGGEST_LAST_HIGHLIGHT
 	fi
 }
diff --git a/zsh-autosuggestions.zsh b/zsh-autosuggestions.zsh
index b19cac7..03100b9 100644
--- a/zsh-autosuggestions.zsh
+++ b/zsh-autosuggestions.zsh
@@ -244,7 +244,9 @@ _zsh_autosuggest_highlight_reset() {
 	typeset -g _ZSH_AUTOSUGGEST_LAST_HIGHLIGHT
 
 	if [[ -n "$_ZSH_AUTOSUGGEST_LAST_HIGHLIGHT" ]]; then
-		region_highlight=("${(@)region_highlight:#$_ZSH_AUTOSUGGEST_LAST_HIGHLIGHT}")
+		if (( $#region_highlight )); then
+			shift -p region_highlight
+		fi
 		unset _ZSH_AUTOSUGGEST_LAST_HIGHLIGHT
 	fi
 }