https://git.ruby-lang.org/ruby.git/commit/?id=79652c5873

From 79652c58734be2d9d2055cbbe076e952fa7978a1 Mon Sep 17 00:00:00 2001
From: aycabta <aycabta@g...>
Date: Mon, 6 Sep 2021 04:20:08 +0900
Subject: [ruby/reline] Support multiple trap_key

https://github.com/ruby/reline/commit/b0207fa049
---
 lib/reline/line_editor.rb | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/lib/reline/line_editor.rb b/lib/reline/line_editor.rb
index c2ef197..3601066 100644
--- a/lib/reline/line_editor.rb
+++ b/lib/reline/line_editor.rb
@@ -578,7 +578,11 @@ class Reline::LineEditor https://github.com/ruby/ruby/blob/trunk/lib/reline/line_editor.rb#L578
       @proc_scope.set_key(key)
       dialog_render_info = @proc_scope.call
       if @trap_key
-        if @trap_key.is_a?(Array)
+        if @trap_key.any?{ |i| i.is_a?(Array) } # multiple trap
+          @trap_key.each do |t|
+            @config.add_oneshot_key_binding(t, @name)
+          end
+        elsif @trap_key.is_a?(Array)
           @config.add_oneshot_key_binding(@trap_key, @name)
         elsif @trap_key.is_a?(Integer) or @trap_key.is_a?(Reline::Key)
           @config.add_oneshot_key_binding([@trap_key], @name)
-- 
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