</a></ol><hr></div></nav><div class=analysis-message-metadata><table><tbody><tr><td>Message Name</td><td>InvalidRegexp</td></tr><tr><td>Message Code</td><td>IST0122</td></tr><tr><td>Description</td><td>Invalid Regex</td></tr><tr><td>Level</td><td>Warning</td></tr></tbody></table></div><p>This message occurs when an Istio resource contains an invalid regular expression.</p><p>Istio regular expressions use the <a href=https://github.com/google/re2/wiki/Syntax>RE2</a>
regular expression syntax.</p><h2 id=examp