fe

A tiny, embeddable language implemented in ANSI C

(= reverse (fn (lst)
  (let res nil)
  (while lst
    (= res (cons (car lst) res))
    (= lst (cdr lst))
  )
  res
))

(= animals '("cat" "dog" "fox"))

(print (reverse animals)) ; => ("fox" "dog" "cat")

Overview

• Single-Header library — just include fe.h, define FE_IMPLEMENTATION and you ready to go
• Easy to use C API
• Small memory usage within a fixed-sized memory region — no mallocs
• Portable C11 — works on 32 and 64bit
• Supports numbers, symbols, strings, pairs, lambdas, macros
• Lexically scoped variables, closures
• Simple mark and sweep garbage collector
• Concise — less than 1000 sloc
• Usable without libc (FE_NO_STD but needs to have some functions)

---

• Examples
• C API Overview
• Language Overview
• Implementation Overview

Contributing

The library focuses on being lightweight and minimal; Bug reports and questions are welcome.

License

This library is free software; you can redistribute it and/or modify it under the terms of the MIT license. See LICENSE for details.