There is something a bit odd with PL/SQL (or SQL - I'm not sure whether PL/SQL is actually supported. It seems to be sadly unpopular with syntax highlighting plugins.) A quoted SQL statement seems to defeat the quoting, but only when an earlier line ends with a semicolon. ``` lang-sql select blah into blahblah from blahblahblah; -- Semicolon here seems to do it xxx := 'select select'; Quoting is now reversed. ``` Screenshot for posterity: ![highlight-js glitch with SQL](https://i.sstatic.net/wLDTK.png) The actual post where this came up is here: https://stackoverflow.com/a/64183788/230471