simplisp

A minimal Lisp interpreter written in Rust.

Building

cargo build --release

Running

Interactive REPL:

cargo run

Execute a file:

cargo run example.lisp

Language Features

Arithmetic: +, -, *, /, >, <, = Logic: and, or, not List Operations: map, fold, apply, split File I/O: file-read Type Conversion: as-number Special Forms: define, if, function, quote

Advent of Code Example

The included example.lisp solves Advent of Code 2022 Day 1.

Try It With Your Own Data

1. Go to adventofcode.com/2022/day/1 and copy your puzzle input
2. Replace the contents of example_input.txt with your data
3. Run:

cargo run example.lisp

The program outputs the answer to stdout.

Linux/Mac users: Change "\r\n\r\n" to "\n\n" in example.lisp line 3 if your Advent of Code input uses Unix line endings.