title: Regex OR in notepad++
body: <p>I'd like to find all following instances in notepad++</p>
  
  <pre><code>action421
  action732
  action983
  </code></pre>
  
  <p>but ignore all other <code>actionXXX</code> combinations.</p>
  
  <p>I'm looking for a regex similar to <code>action(421)|(732)|(983)</code> but it doesn't work. What regex would?</p>
  
  <p>Does <a href="http://www.scintilla.org/SciTERegEx.html" rel="noreferrer">notepad++ regex engine</a> even have an <code>OR</code> operator?</p>