title: Need to get NSRanges of multiple @ symbols and the text that follows them in UILabel's text
body: <p>I have a <code>UILabel</code> that contains text like this:</p>
  
  <p>"Hi, my name is John Smith. Here is my twitter handle @johnsmith and I work for this company @somerandomcompany. Thanks for watching!"</p>
  
  <p>I need to find the ranges for all of the <code>@</code> symbols and whatever text comes right after them until a space appears, so that I can then bold both the symbol and any text that comes after it until a space appears:</p>
  
  <p>"Hi, my name is John Smith. Here is my twitter handle <strong>@johnsmith</strong> and I work for this company <strong>@somerandomcompany.</strong> Thanks for watching!"</p>
  
  <p>I am familiar with using <code>rangeOfString</code> but I have never had to handle multiple ranges like this. I need these <code>NSRanges</code> so that I can pass them into a <code>UILabel</code> category that will bold the appropriate text.</p>
  
  <p>Any help is greatly appreciated.</p>