title: vi input mode in R?
body: <p>I'd like to be able to edit my R history using vi commands (e.g. ESC-/, ESC-k).  I noticed a similar question here:
  <a href="https://stackoverflow.com/questions/2380577/vi-input-mode-in-command-line-matlab">vi input mode in command line Matlab?</a>
  and tried the readline mods suggested in this post (doesn't R use readline?) but they don't work (for me).</p>
  
  <p>Any ideas?</p>