nakkaya / ferret

Ferret is a free software lisp implementation for real time embedded control systems.

Ferret

Ferret is a free software lisp implementation designed to be used in real time embedded control systems. Ferret lisp compiles down to self contained C++11. Generated code is portable between any Operating System and/or Microcontroller that supports a C++11 compliant compiler. It has been verified to run on architectures ranging from embedded systems with as little as 2KB of RAM to general purpose computers running Linux/Mac OS X/Windows.

This repository contains the Ferret compiler. For more information about Ferret, including downloads and documentation for the latest release, check out Ferret's website

General Information

• Website - https://ferret-lang.org
• Source Code - https://github.com/nakkaya/ferret
• Mailing List - https://groups.google.com/forum/#!forum/ferret-lang
• Issue Tracker - https://github.com/nakkaya/ferret/issues

Quick Start

Download latest Ferret release,

wget https://ferret-lang.org/builds/ferret.jar

A program that sums the first 5 positive numbers.

;;; lazy-sum.clj
(defn positive-numbers
  ([]
   (positive-numbers 1))
  ([n]
   (cons n (lazy-seq (positive-numbers (inc n))))))

(println (->> (positive-numbers)
              (take 5)
              (apply +)))

Compile to binary using,

$ java -jar ferret.jar -i lazy-sum.clj
$ g++ -std=c++11 -pthread lazy-sum.cpp
$ ./a.out