karabiner

private.xml

<?xml version="1.0"?>
<root>
  <item>
    <name>ろ to ~</name>
    <identifier>private.change_RO_to_BACKQUOTE</identifier>
    <autogen>__KeyToKey__ KeyCode::JIS_UNDERSCORE, KeyCode::BACKQUOTE</autogen>
  </item>

  <item>
    <name>VK_CHANGE_INPUTSOURCE_CHINESE_SIMPLIFIED</name>
    <identifier>private.VK_CHANGE_INPUTSOURCE_CHINESE_SIMPLIFIED</identifier>
    <autogen>__KeyToKey__ KeyCode::JIS_KANA, KeyCode::VK_CHANGE_INPUTSOURCE_CHINESE_SIMPLIFIED</autogen>
  </item>

  <item>
    <name>VK_CHANGE_INPUTSOURCE_JAPANESE</name>
    <identifier>private.VK_CHANGE_INPUTSOURCE_JAPANESE</identifier>
    <autogen>__KeyToKey__ KeyCode::JIS_BRACKET_RIGHT, KeyCode::JIS_KANA</autogen>
  </item>

  <item>
    <name>ctrl_l to alt_l</name>
    <identifier>private.swipe_ctrl_l_and_alt_l</identifier>
    <autogen>__KeyToKey__ KeyCode::JIS_BRACKET_RIGHT, KeyCode::JIS_KANA</autogen>
  </item>

  <item>
    <name>swipe backslash and equal</name>
    <identifier>private.swipe_bs_and_eq</identifier>
    <autogen>__KeyToKey__ KeyCode::JIS_YEN, KeyCode::JIS_HAT</autogen>
    <autogen>__KeyToKey__ KeyCode::JIS_HAT, KeyCode::JIS_BRACKET_RIGHT</autogen>
  </item>

  <item>
    <name>Swap Language</name>
    <identifier>private.swaplang</identifier>
    <autogen>__KeyToKey__ KeyCode::JIS_EISUU, ModifierFlag::NONE, KeyCode::VK_CHANGE_INPUTSOURCE_ENGLISH</autogen>
    <block>
      <inputsource_only>ENGLISH</inputsource_only>
      <autogen>__KeyToKey__ KeyCode::JIS_KANA, KeyCode::SPACE, ModifierFlag::CONTROL_L</autogen>
    </block>
  </item>
</root>