title: Don't allow multiple dots using regular expression
body: <p>I have Regex that should validate some number:</p>
  
  <pre><code>\b\d{0,3}[.]?\d{0,3}[.]?\d{0,3}[.]?\d{0,3}[.]?\d{0,3}[.]?\d{1,3}[,]?\d{0,2}\b
  </code></pre>
  
  <p>Number format is something like: <code>123.456,00</code></p>
  
  <p>And it works almost perfect, except it allows <code>123...456,00</code> and I would like to prevent that. Any help or advice would be great.</p>