title: HTML5 pattern for input(mask)
body: <pre><code>( (0)|(\d{1,3})([\,])(\d{2}))
  </code></pre>
  
  <p>we would like get pattern for pattern <code>0</code> or number format <code>***,**</code> in input, where * is number.
  But we cann't find options for this regexp .
  How syntax will be right in this case?</p>
  
  <p>Thanks!</p>