Steps to reproduce: 1) Type: ``` echo $(( x << n )) anything anything n ``` 2) save a file as .sh Actual result All text after "<< n" until the next "n" is highlighted as if it was HERE Q and n was a delimiter. Notepad++ v8.4.8 64-bit [https://github.com/notepad-plus-plus/notepad-plus-plus/issues/13151](https://github.com/notepad-plus-plus/notepad-plus-plus/issues/13151)