🔧 Writing more readable parsers in Haskell using keep and skip from elm/parser

The CPS transformer from Chapter 6 of EOPL3 reuses the LETREC language from Chapter 3 with the addition of multiargument procedures and multideclaration letrec expressions. I already wrote a parser for it when I solved exercise 3.33 so I decided to start writing my implementation of the CPS transformer by basing my implementation on...