I'm not familiar with the way syntax highlighting and code indentation logic in text editors is implemented, but using regular expressions to try and parse a CF

I'm not familiar with the way syntax highlighting and code indentation logic in text editors is implemented, but using regular expressions to try and parse a CFG like the Go programming language seems like a phenomenally bad idea. Maybe everyone does it and everybody is happy with it working only in 90% of cases, but it just seems like the wrong approach to me.