title: String Encoding
body: <p>I am checking for the existence of a file in the XML backup of my iTunes library.</p>
  
  <p>How do I change this string </p>
  
  <p><code>E:\Entertainment\Music\Latin\100% Azucar  The Best of Celia Cruz &amp; La Sonora Matancera/08 Mi Soncito.mp3</code></p>
  
  <p>to this</p>
  
  <p><code>E:/Entertainment/Music/Latin/100%25%20Azucar%20%20The%20Best%20of%20Celia%20Cruz%20&amp;#38;%20La%20Sonora%20Matancera/08%20Mi%20Soncito.mp3</code></p>
  
  <p>Changes:</p>
  
  <ol>
  <li>Space becomes %20</li>
  <li>Backslash becomes Forward-slash</li>
  <li>% (percentage sign) became %25</li>
  </ol>