[ruby/reline] Fix zero division when the screen width is not available

https://github.com/ruby/reline/commit/0dce9da083
2021-10-11 20:34:55 +09:00 · 2021-10-11 20:34:55 +09:00 · 60689f0f20
commit 60689f0f20
parent e212d051d0
1 changed files with 2 additions and 1 deletions
--- a/lib/reline/line_editor.rb
+++ b/lib/reline/line_editor.rb
@ -340,7 +340,8 @@ class Reline::LineEditor
  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)