https://git.ruby-lang.org/ruby.git/commit/?id=60689f0f20

From 60689f0f20cf54ea85aea6ec7e07e3b8bb7c7119 Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@r...>
Date: Mon, 11 Oct 2021 20:34:55 +0900
Subject: [ruby/reline] Fix zero division when the screen width is not
 available

https://github.com/ruby/reline/commit/0dce9da083
---
 lib/reline/line_editor.rb | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lib/reline/line_editor.rb b/lib/reline/line_editor.rb
index f6facc9da8..c1bb49033a 100644
--- a/lib/reline/line_editor.rb
+++ b/lib/reline/line_editor.rb
@@ -340,7 +340,8 @@ class Reline::LineEditor https://github.com/ruby/ruby/blob/trunk/lib/reline/line_editor.rb#L340
   end
 
   private def calculate_height_by_width(width)
-    width.div(@screen_size.last) + 1
+    max_width = @screen_size.last
+    max_width > 0 ? (width.div(max_width) + 1) : 1
   end
 
   private def split_by_width(str, max_width)
-- 
cgit v1.2.1


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