https://git.ruby-lang.org/ruby.git/commit/?id=13b106a19c

From 13b106a19c9c819fb0c887beb4787ab894cdba6c Mon Sep 17 00:00:00 2001
From: aycabta <aycabta@g...>
Date: Fri, 18 Oct 2019 02:15:53 +0900
Subject: Ignore the input method key sequence from getwch() correctly

The function getwch() returns some key sequences which start from 0 or 0xE0
with a following key code. Alt+` that is on/off key for input methods gives 0
and 41 so Reline was always ignoring 0 and following keys but numeric keypad
keys give 0 and following actual keys. This commit changes the behavior to be
ignoring only the 0 and 41 sequence.

diff --git a/lib/reline/windows.rb b/lib/reline/windows.rb
index 01e1a5a..18bbbfa 100644
--- a/lib/reline/windows.rb
+++ b/lib/reline/windows.rb
@@ -9,6 +9,7 @@ class Reline::Windows https://github.com/ruby/ruby/blob/trunk/lib/reline/windows.rb#L9
     [224, 83] => :key_delete,      # Del
     [224, 71] => :ed_move_to_beg,  # Home
     [224, 79] => :ed_move_to_end,  # End
+    [  0, 41] => :ed_unassigned,   # input method on/off
   }.each_key(&:freeze).freeze
 
   if defined? JRUBY_VERSION
@@ -118,8 +119,8 @@ class Reline::Windows https://github.com/ruby/ruby/blob/trunk/lib/reline/windows.rb#L119
     else
       case input
       when 0x00
-        getwch
         alt = false
+        @@output_buf.push(input)
         input = getwch
         @@output_buf.push(*input)
       when 0xE0
-- 
cgit v0.10.2


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