title: Pass multiple strings to the string::find function
body: <p>Is it possible to somehow pass multiple strings to the string::find function?</p>
  
  <p>For example, to find a string I might use this:</p>
  
  <pre><code>str.find("a string");
  </code></pre>
  
  <p>What I'd like to do is something like this:</p>
  
  <pre><code>str.find("a string" || "another string" || "yet another string")
  </code></pre>
  
  <p>And have the function return the position of the first occurrence of any of the three strings.</p>
  
  <p>Thanks for any suggestions.</p>