[ruby/reline] Fix support for emacs-ctlx and emacs-meta keymaps

The existing implementation, given the below .inputrc, erroneously
creates a "C-v" key binding:

	set keymap emacs-ctlx
	"\C-v": "[C-x C-v was pressed]"

This fixes it to instead create a "C-x C-v" keybinding.

https://github.com/ruby/reline/commit/719f52d231

1 files changed, 22 insertions, 0 deletions

diff --git a/test/reline/test_config.rb b/test/reline/test_config.rb
index e00a47c705..99d190d246 100644
--- a/test/reline/test_config.rb
+++ b/test/reline/test_config.rb
@@ -274,6 +274,28 @@ class Reline::Config::Test < Reline::TestCase
     assert_equal expected, @config.key_bindings
   end
 
+  def test_additional_key_bindings_for_auxiliary_emacs_keymaps
+    @config.read_lines(<<~'LINES'.lines)
+      set keymap emacs
+      "ab": "AB"
+      set keymap emacs-standard
+      "cd": "CD"
+      set keymap emacs-ctlx
+      "ef": "EF"
+      set keymap emacs-meta
+      "gh": "GH"
+      set editing-mode emacs # keymap changes to be emacs
+    LINES
+
+    expected = {
+      'ab'.bytes => 'AB'.bytes,
+      'cd'.bytes => 'CD'.bytes,
+      "\C-xef".bytes => 'EF'.bytes,
+      "\egh".bytes => 'GH'.bytes,
+    }
+    assert_equal expected, @config.key_bindings
+  end
+
   def test_history_size
     @config.read_lines(<<~LINES.lines)
       set history-size 5000