title: How to find all occurences of multiple strings?
body: <p>I have the example String:</p>
  
  <pre><code>There are from {d} to {d} {s} balls available. Average of {f} balls.
  </code></pre>
  
  <p>I want to find all occurences of those tags: <code>{d}</code>, <code>{f}</code> and <code>{s}</code>.</p>
  
  <p>What would be the regex pattern for that?</p>