Build a Lisp Interpreter
Build a Scheme/Lisp interpreter in ~200 lines: tokenize, parse to nested lists, evaluate atoms and expressions, support define and if, lambda + closures, recursion, list operations, and macros. The textbook (SICP) classic — every CS curriculum has this.
intermediate13 lessons4 chapters13 graded exercisesPython
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What you’ll have built
Chapter by chapter. Every step is a graded exercise.
- Reader & S-Expressions
- Evaluator
- Functions & Closures
- Advanced Topics
Starts in Python — solve in the language you choose in the editor, same tests either way.
Curriculum
4 chapters, 13 lessons. Each lesson is a short read, one graded exercise, and a quiz.
- 1Why Lisp?Read · exercise · quiz
- 2Parse to ASTRead · exercise · quiz
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