title: How to limit input mask range with hex characters
body: <p>I'm trying to set input mask that allows user to enter MAC-address, which consists of hex characters: 0-9, A-F.</p>
  <p>What I get so far is:</p>
  <pre><code>&gt;AA\-AA\-AA\-AA\-AA\-AA
  </code></pre>
  <p>but this format allows to enter all alphabet characters.</p>
  <p>The question is:</p>
  <p>How to limit input mask range with hex characters?</p>