Plait Continuation 3 Interp

Summary

General strategy for interpreting function calls in Curly using substitution. Introduction on parsing from concrete Curly syntax to abstract-syntax `Exp`. Implementing records with functional update. A look at the implementation of Implementing Curly with `let/cc`. A look at the `lambda` and application cases of ` Choosing a representation for Curly continuations. Introducing continuations as a language implementation's way of keeping track of what to do next. Representing Curly expressions in