it turns out that we don't need to tell lex we don't plan to use unput; we can just.... not use unput. however, if we're flex, use the command line option if it's available, to avoid warnings
it turns out that we don't need to tell lex we don't plan to use unput; we can just.... not use unput. however, if we're flex, use the command line option if it's available, to avoid warnings