title: regular expression match case sensitive off
body: <p>I have a regular expression that finds two words in a line.</p>
  
  <p>The problem is that it is case sensitive. I need to edit it so that it matches both the case.</p>
  
  <p>reqular expression</p>
  
  <pre><code>^(.*?(\bPain\b).*?(\bfever\b)[^$]*)$
  </code></pre>