From 03e9887d2e4c637a70791c65be6e496dbe190ed1 Mon Sep 17 00:00:00 2001
From: aycabta <aycabta@gmail.com>
Date: Sat, 4 Sep 2021 07:46:41 +0900
Subject: [PATCH] [ruby/reline] Correct misalignment of scrollbar

https://github.com/ruby/reline/commit/7924b4cfc6
---
 lib/reline/line_editor.rb | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/lib/reline/line_editor.rb b/lib/reline/line_editor.rb
index e52c4e5fd3..21db97fce6 100644
--- a/lib/reline/line_editor.rb
+++ b/lib/reline/line_editor.rb
@@ -680,11 +680,11 @@ class Reline::LineEditor
       end
       str = padding_space_with_escape_sequences(Reline::Unicode.take_range(item, 0, dialog.width), dialog.width)
       if dialog_render_info.scrollbar and dialog_render_info.contents.size > height
-        if position <= (i * 2) and (i * 2) <= (position + bar_height)
+        if position <= (i * 2) and (i * 2 + 1) < (position + bar_height)
           str += '█'
-        elsif position <= (i * 2) and (i * 2 - 1) <= (position + bar_height)
+        elsif position <= (i * 2) and (i * 2) < (position + bar_height)
           str += '▀'
-        elsif position <= (i * 2 + 1) and (i * 2) <= (position + bar_height)
+        elsif position <= (i * 2 + 1) and (i * 2) < (position + bar_height)
           str += '▄'
         else
           str += ' '