https://golang.org/pkg/regexp/

https://quasilyte.dev/regexp-lint/
    https://github.com/avito-tech/avitotech-presentations/blob/master/Stay%20home%20and%20GOnline/%D0%A8%D0%B0%D1%80%D0%B8%D0%BF%D0%BE%D0%B2%20%E2%80%94%20%D0%BF%D1%80%D0%B5%D0%B7%D0%B5%D0%BD%D1%82%D0%B0%D1%86%D0%B8%D1%8F.pdf