title: How can I allow any character in a regular expression?
body: <p>Currently, I use the following regular expression for the user to enter a password</p>
  <pre><code>^\w{8,16}$
  </code></pre>
  <p>Now as I understand, \w only allows a-z, A-Z, 0-9, and the _ character (underscore). I want to do allow <em>any</em> character, but the length is to be between 8 and 16. How do I get about doing it?</p>