title: Vim not accepting alt-sequences as fast keycodes
body: <p>When I bind <code>&lt;M-W&gt;</code> or <code>&lt;A-W&gt;</code> they do not get recognized, Vim instead will perform <code>&lt;ESC&gt;w</code> (which just moves forward a word). </p>
  
  <p>I even do have this: </p>
  
  <pre><code>set ttimeout
  set ttimeoutlen=100
  </code></pre>
  
  <p>How can I debug this? I know I can use a special key (like <code>&lt;F37&gt;</code>) to get a fast binding, but I'm going to run out of those F-keys eventually, though hopefully 25 bindings should be enough. </p>
  
  <p>It basically doesn't seem like I have the ability to do any binding of anything via <code>&lt;A-&gt;</code> or <code>&lt;M-&gt;</code>. </p>
  
  <p>I am averse to doing <code>nnoremap</code><kbd>Ctrl+V</kbd><kbd>Alt+W</kbd> as that will insert <code>^[w</code> which will cause the dreaded delay in processing the escape key (this is a traditional slow key bind). </p>