Monkey Interpreter in Go

This is my implementation of the Monkey programming language interpreter, written in Go.
The project is based on the books "Writing An Interpreter In Go" and "Writing A Compiler In Go" by Thorsten Ball.

It was built entirely from scratch, covering everything from lexical analysis to evaluation.
The goal was to understand how interpreters work at a fundamental level.

Features

• Lexer (tokenizing source code)
• Pratt Parser (generating AST)
• Evaluator (interpreter engine)
• First-class functions and closures
• Lexical scope
• Built-in types: integers, booleans, strings, arrays, hashes
• Built-in functions: len, first, last, rest, push, etc.
• Error handling and environment isolation
• REPL (interactive prompt)

Getting Started

Requirements

• Go 1.18 or higher (tested with 1.21)

Install and Run

git clone https://github.com/your-username/monkey-interpreter.git
cd monkey-interpreter
go run main.go