--rw-rw-r-- stallion sys 12841 Jan 12  2020 input.go
--rw-rw-r-- stallion sys  4192 Jan 12  2020 lex.go
--rw-rw-r-- stallion sys  5946 Jan 12  2020 lex_test.go
--rw-rw-r-- stallion sys  1668 Jan 12  2020 slice.go
--rw-rw-r-- stallion sys  1258 Jan 12  2020 stack.go
--rw-rw-r-- stallion sys  3057 Jan 12  2020 tokenizer.go