grep /^unsafe(\s\{)|(\sfn)|(\strait)|(\simpl)/ Some variation of that, or four individual greps. I forgot how to use OR properly in Regex but each of those wor

grep /^unsafe(\s\{)|(\sfn)|(\strait)|(\simpl)/ Some variation of that, or four individual greps. I forgot how to use OR properly in Regex but each of those works individually. Tested on regex101 [0] against the following code: unsafe { // Scary stuff... } unsafe trait Scary { } unsafe impl Scary for i32 {} unsafe fn danger_will_robinson() { // Scary stuff... } That should catch all four instances that unsafe can be called in without any false positives. Since `fn`, `trait` and `impl` are keywords they won't change. Of course, any comments should be removed beforehand in case of a commented out unsafe block. [0] https://regex101.com/ https://regex101.com/