tinylisp 2

A minimalist Lisp dialect and successor to tinylisp.

Features

• Only 20-ish builtins and five data types
• Tail-call optimization, allowing unlimited recursion depth for properly written functions
• Lexical scope and closures
• A simple yet powerful macro system
• An automatically loaded core library, written in tinylisp 2
• Short aliases for commonly used functions, convenient for code golf

Running tinylisp 2

You can run tinylisp 2 in interactive REPL mode at Replit.

If you git clone tinylisp 2 to your computer (requires Python 3.6 or higher), you have two options: run a file, or open the REPL.

• To run code from a file, pass the filename as a command-line argument to the interpreter: python3 tinylisp2.py file.tl (Linux) or tinylisp2.py file.tl (Windows).
• To start the REPL, run the interpreter without command-line arguments: python3 tinylisp2.py or tinylisp2.py.

Helpful commands when using the REPL:

• (help) displays a help document.
• (restart) clears all user-defined names, starting over from scratch.
• (quit) ends the session.