[ruby/irb] Determine left and right when the width of either side is zero correctly

https://github.com/ruby/irb/commit/5df6e1f027

1 files changed, 2 insertions, 2 deletions

diff --git a/lib/irb/input-method.rb b/lib/irb/input-method.rb
index 49c52bd8da..5efd5d8e21 100644
--- a/lib/irb/input-method.rb
+++ b/lib/irb/input-method.rb
@@ -381,10 +381,10 @@ module IRB
             width = left_width
             x = left_x
           end
-        elsif right_width.positive? and left_width.negative?
+        elsif right_width.positive? and left_width <= 0
           width = right_width
           x = right_x
-        elsif right_width.negative? and left_width.positive?
+        elsif right_width <= 0 and left_width.positive?
           width = left_width
           x = left_x
         else # Both are negative width.