title: Extract content between pipes using RE2 Regexp_Extract
body: <p>I have data in certain dimensions that can look like this:</p>
  <pre><code>this|is|an|example
  withoutpipe
  only1|pipe
  </code></pre>
  <p>I want to extract the data between the pipes using RE2 RegEx.</p>
  <p>I have tried it with <code>[^|]+</code> but this does not seem to work.</p>
  <p>I want every word to get extracted and need help trying to figure out how.</p>