From f9755d63377588401316d34b934a95378d439c58 Mon Sep 17 00:00:00 2001
From: Markus Kurtz <m@mgkurtz.de>
Date: Mon, 28 Jul 2025 17:05:41 +0200
Subject: [PATCH] Add zsh version switch for suffix removal feature

Fixes #797 on older machines by reverting to pre 11f1145 code.
---
 Completions/_autocomplete__history_lines | 18 ++++++++++++------
 1 file changed, 12 insertions(+), 6 deletions(-)

diff --git a/Completions/_autocomplete__history_lines b/Completions/_autocomplete__history_lines
index c037882..25030f8 100644
--- a/Completions/_autocomplete__history_lines
+++ b/Completions/_autocomplete__history_lines
@@ -146,11 +146,17 @@ _autocomplete__history_lines() {
   builtin compadd "$suf[@]" -QU -ld displays "$expl[@]" -a matches
 }
 
-_autocomplete__history_lines_suffix() {
-  if [[ SUFFIX_ACTIVE -ne 0 && $WIDGET != history-search-backward ]]; then
-    LBUFFER="$LBUFFER[1,SUFFIX_START]"
-    RBUFFER="$RBUFFER[SUFFIX_END,-1]"
-  fi
-}
+if is-at-least 5.9; then
+  _autocomplete__history_lines_suffix() {
+    if [[ SUFFIX_ACTIVE -ne 0 && $WIDGET != history-search-backward ]]; then
+      LBUFFER="$LBUFFER[1,SUFFIX_START]"
+      RBUFFER="$RBUFFER[SUFFIX_END,-1]"
+    fi
+  }
+else
+  _autocomplete__history_lines_suffix() {
+    [[ $KEYS[-1] != $'\C-@' ]] && LBUFFER=$LBUFFER[1,-1-$1]
+  }
+fi
 
 _autocomplete__history_lines "$@"