title: Selecting an entire paragraph by just matching a string
body: <p>Suppose I have two paragraphs while reading a file:</p>
  
  <pre><code>'Baa, baa, black sheep, have you any wool?
  Yes sir, yes sir, three bags full!
  One for the master
  One for the dame'
  
  'Mary had a little lamb,
  its fleece was white as snow;
  And everywhere that Mary went,
  the lamb was sure to go.'
  </code></pre>
  
  <p>Is there any code (using regular expressions or something) that, if I search <code>'lamb'</code>, will select the entire second paragraph?</p>