title: Extracting Number and Name from String [r]
body: <p>POSIX Expression is giving me a headache.</p>
  
  <p>Lets say we have a string:</p>
  
  <pre><code>a = "[question(37), question_pipe(\"Person10\")]"
  </code></pre>
  
  <p>and ultimately I would like to be able to have:</p>
  
  <pre><code>b = c("37", "Person10")
  </code></pre>
  
  <p>I've had a look at the <code>stringr</code> package but cant figure out how to extract the information out using regular expressions and <code>str_split</code>.</p>
  
  <p>Any help would be greatly appreciated.</p>
  
  <p>Cameron</p>