CSE 341 - Programming Languages

Scheme/Racket

Getting Started

• Running Racket

Lecture Notes

• Racket basics
• Racket I/O
• eval and apply
• Side Effects
• Simulating Objects in Racket
• Racket Macros (slides-1up; slides-4up)
• Some Additional Racket Topics: improper lists, functions with a variable number of arguments
• Delayed Evaluation (slides-1up; slides-4up)

Source Code

• basics.rkt (Racket Basics source code)
• lets.rkt (additional examples of let and let*)
• deriv.rkt (symbolic differentiation, plus unit tests in Racket)
• splice.rkt (using mutable lists)
• structs.rkt (structs in Racket)
• bankaccount.rkt (object-oriented programming)
• racket-macros.rkt (macros)
• delayed-eval.rkt
• letrec.rkt (recursive definitions)
• misc.rkt (functions with a variable number of arguments; quasiquoting)

Mini-Exercises

• Mini-exercises #1 (basics); solution
• Mini-exercises #2 (structs, objects, scope, macros ); mini2.rkt (solution)
• Mini-exercises #3 (macros, delayed evaluation); mini3.rkt (solution)
• Mini-exercises #4 (deriv program); solution

xkcd on Lisp

although also see more xkcd lisp

Online Resources

There is no text for the Scheme portion of the course; online resources including the Help tools packaged with DrRacket (the recommended software environment) and/or the following will suffice.

• Racket home page
• Racket Guide
• DrRacket: The Racket Programming Environment
• RackUnit: Unit Testing (the Quick Start Guide is all you'll need for CSE 341)
• Macros (from the Racket Guide). Also see Fear of Macros.
• Structure and Interpretation of Computer Programs, by Abelson and Sussman. The classic text, available online.