If you draw a line from 'ad-hoc byte-wrangling nonsense' to 'parser combinators', this can't be more than 20% along it. Looking at the linked URL parser, why d

If you draw a line from 'ad-hoc byte-wrangling nonsense' to 'parser combinators', this can't be more than 20% along it. Looking at the linked URL parser, why doesn't it look like url = do scheme authority path query fragment where scheme = ... authority = ... etc. It looks totally ad-hoc.