There's cl-parser-combinators (https://github.com/Ramarren/cl-parser-combinators https://github.com/Ramarren/cl-parser-combinators), which is supposed to aid in

There's cl-parser-combinators (https://github.com/Ramarren/cl-parser-combinators https://github.com/Ramarren/cl-parser-combinators), which is supposed to aid in writing parsers in a painless, Parsec-like way. I haven't used it, but it may be worth a try.