https://git.ruby-lang.org/ruby.git/commit/?id=cdf2790aa0

From cdf2790aa089c5ff608dd97407b5ce684cc9f415 Mon Sep 17 00:00:00 2001
From: aycabta <aycabta@g...>
Date: Thu, 17 Dec 2020 19:57:44 +0900
Subject: [ruby/reline] Support longer than screen height on Windows

https://github.com/ruby/reline/commit/2a97ca9362

diff --git a/lib/reline/windows.rb b/lib/reline/windows.rb
index b09290b..937941b 100644
--- a/lib/reline/windows.rb
+++ b/lib/reline/windows.rb
@@ -233,7 +233,9 @@ class Reline::Windows https://github.com/ruby/ruby/blob/trunk/lib/reline/windows.rb#L233
 
   def self.move_cursor_up(val)
     if val > 0
-      @@SetConsoleCursorPosition.call(@@hConsoleHandle, (cursor_pos.y - val) * 65536 + cursor_pos.x)
+      y = cursor_pos.y - val
+      y = 0 if y < 0
+      @@SetConsoleCursorPosition.call(@@hConsoleHandle, y * 65536 + cursor_pos.x)
     elsif val < 0
       move_cursor_down(-val)
     end
@@ -241,6 +243,9 @@ class Reline::Windows https://github.com/ruby/ruby/blob/trunk/lib/reline/windows.rb#L243
 
   def self.move_cursor_down(val)
     if val > 0
+      screen_height = get_screen_size.first
+      y = cursor_pos.y + val
+      y = screen_height - 1 if y > (screen_height - 1)
       @@SetConsoleCursorPosition.call(@@hConsoleHandle, (cursor_pos.y + val) * 65536 + cursor_pos.x)
     elsif val < 0
       move_cursor_up(-val)
@@ -257,6 +262,8 @@ class Reline::Windows https://github.com/ruby/ruby/blob/trunk/lib/reline/windows.rb#L262
 
   def self.scroll_down(val)
     return if val.zero?
+    screen_height = get_screen_size.first
+    val = screen_height - 1 if val > (screen_height - 1)
     scroll_rectangle = [0, val, get_screen_size.last, get_screen_size.first].pack('s4')
     destination_origin = 0 # y * 65536 + x
     fill = [' '.ord, 0].pack('SS')
diff --git a/test/reline/yamatanooroti/test_rendering.rb b/test/reline/yamatanooroti/test_rendering.rb
index 83ead69..8468729 100644
--- a/test/reline/yamatanooroti/test_rendering.rb
+++ b/test/reline/yamatanooroti/test_rendering.rb
@@ -426,6 +426,7 @@ begin https://github.com/ruby/ruby/blob/trunk/test/reline/yamatanooroti/test_rendering.rb#L426
     end
 
     def test_enable_bracketed_paste
+      omit if Reline::IOGate.win?
       write_inputrc <<~LINES
         set enable-bracketed-paste on
       LINES
-- 
cgit v0.10.2


--
ML: ruby-changes@q...
Info: http://www.atdot.net/~ko1/quickml/