[ruby/reline] Stop erasing chars after the cursor at eol

When the cursor is at the end of the line and erases characters after the
cursor, some terminals delete the character at the cursor position.

https://github.com/ruby/reline/commit/e96ec97b02

1 files changed, 12 insertions, 2 deletions

diff --git a/lib/reline/line_editor.rb b/lib/reline/line_editor.rb
index b4d2b457c7..fe088a4721 100644
--- a/lib/reline/line_editor.rb
+++ b/lib/reline/line_editor.rb
@@ -492,8 +492,18 @@ class Reline::LineEditor
     Reline::IOGate.move_cursor_column(0)
     visual_lines.each_with_index do |line, index|
       if line.nil?
-        if Reline::IOGate.win? and calculate_width(visual_lines[index - 1], true) == Reline::IOGate.get_screen_size.last
-          # A newline is automatically inserted if a character is rendered at eol on command prompt.
+        if calculate_width(visual_lines[index - 1], true) == Reline::IOGate.get_screen_size.last
+          # reaches the end of line
+          if Reline::IOGate.win?
+            # A newline is automatically inserted if a character is rendered at
+            # eol on command prompt.
+          else
+            # When the cursor is at the end of the line and erases characters
+            # after the cursor, some terminals delete the character at the
+            # cursor position.
+            move_cursor_down(1)
+            Reline::IOGate.move_cursor_column(0)
+          end
         else
           Reline::IOGate.erase_after_cursor
           move_cursor_down(1)