title: Regex for range 1-1000
body: <p>I need help creating a simple regex for a whole number range of 1-1000, with no special characters.</p>
  <p>The two I have both seem to break or allow characters or not the full range:</p>
  <ol>
  <li><code>^\d(\d)?(\d)?$</code></li>
  <li><code>^[0-9]{1,3}$</code></li>
  </ol>