From 14f1d7f0cfcaea3a1f4b9dd36ad1dac40ab3fca3 Mon Sep 17 00:00:00 2001
From: Christopher Vagnetoft <cvagnetoft@gmail.com>
Date: Wed, 28 Feb 2024 12:38:39 +0100
Subject: [PATCH] Bugfix history cursor position

* Added check to make sure that the cursor does not remain past
  the end of the line when scrolling to a shorter entry.
---
 src/Shell.php | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/Shell.php b/src/Shell.php
index 82161f5..197184f 100644
--- a/src/Shell.php
+++ b/src/Shell.php
@@ -118,6 +118,7 @@ class Shell implements WritableStreamInterface, EventEmitterInterface
                     $this->historyIndex++;
                     $this->buffer = $this->history[$this->historyIndex];
                 }
+                $this->cursorPos = min(strlen($this->buffer), $this->cursorPos) - $this->scrollOffset;
                 break;
             case "\e[B": // down
                 if ($this->historyIndex === null) {
@@ -130,6 +131,7 @@ class Shell implements WritableStreamInterface, EventEmitterInterface
                     $this->historyIndex--;
                     $this->buffer = $this->history[$this->historyIndex];
                 }
+                $this->cursorPos = min(strlen($this->buffer), $this->cursorPos) - $this->scrollOffset;
                 break;
 
             case "\e[H": // home