title: Split sentence by period followed by a capital letter
body: <p>I'm trying to find a regex that will split a piece of text into sentences at <code>.</code>/<code>?</code>/<code>!</code> that is followed by a space that is followed by a capital letter.</p>
  
  <pre><code>"Hello there, my friend. In other words, i.e. what's up, man."
  </code></pre>
  
  <p>should split to:</p>
  
  <pre><code>Hello there, my friend| In other words, i.e. what's up, man|
  </code></pre>
  
  <p>I can get it to split on <code>.</code>/<code>?</code>/<code>!</code>, but I have no luck getting the space and capital letter criteria.</p>
  
  <p>What I came up with:</p>
  
  <pre><code>.split("/. \s[A-Z]/")
  </code></pre>