title: Regex: Prefix each word within quotes
body: <p>Using javascript and regex, I would like to prefix each word, that is within quotes, with a plus.</p>
  
  <p>Given the following string:</p>
  
  <pre><code>"this is in quotes" not in quote "more quotes"
  </code></pre>
  
  <p>I would like to return this:</p>
  
  <pre><code>"+this +is +in +quotes" not in quote "+more +quotes"
  </code></pre>
  
  <p>After that, I would like to remove all the quotation marks, which is not a problem using a simple replace, but if this can all be accomplished in one regex, that would be cool.</p>
  
  <p>I know I can use <code>\"(.*?)\"</code> to select everything in quotes, and <code>(?&lt;![^ ])(?=[^ ])</code> selects the beginning of each word, but I don't know how to put it all together.</p>