Macのsublime text2のvintageモードでinsertモードから抜けた時にimeをoffする ref: http://qiita.com/items/55b1267f18e1a9e4e26e

file0.xml

<?xml version="1.0"?>
<root>
    <item>
        <name>control+[ with ime-off</name>
        <identifier>private.ctrl-L2ctrl-L+IME-OFF</identifier>
        <appendix></appendix>
        <autogen>__KeyToKey__ KeyCode::BRACKET_LEFT, ModifierFlag::CONTROL_L, KeyCode::BRACKET_LEFT, ModifierFlag::CONTROL_L, KeyCode::JIS_EISUU</autogen>
    </item>
</root>