title: Mapping <c-w> to be "<c-w>w" in Vim
body: <p>I am having trouble to activate the following mappings: </p>
  
  <pre><code>  nnoremap &lt;buffer&gt; &lt;C-K&gt; &lt;c-w&gt;w
    nnoremap &lt;buffer&gt; &lt;C-S-K&gt; &lt;c-w&gt;W
  </code></pre>
  
  <p>Where, I want have "pressing Ctrl+K in normal mode" to send me to the next buffer (of the same screen), in a clockwise way. <code>&lt;c-w&gt;W</code> in Vim will go the other direction. I want to map this action to be <code>Ctrl+Shift+w</code>.</p>
  
  <p>Any idea why the mapping fails? I found only the latex-suite.vim has a mapping of <code>&lt;c-w&gt;</code> and none <code>&lt;c-s-w&gt;</code> has been mapped. The plugin mapping is buffer only.</p>
  
  <p>Thank you for your input.</p>
  
  <p>All the best, </p>
  
  <p>-Linfeng</p>