4.1 The Metacircular Evaluator

• 4.1.1 The Core of the Evaluator

• 4.1.2 Representing Expressions

• 4.1.3 Evaluator Data Structures

• 4.1.4 Running the Evaluator as a Program

• 4.1.5 Data as Programs

• 4.1.6 Internal Definitions

• 4.1.7 Separating Syntactic Analysis from Execution