Sethlans

Sethlans (named after the Etruscan god of craftsmanship) is a dynamic, prototype-based, functional programming language. It's made as a testbed for some of my programming language ideas (including related to Bjoern, my attempt at a high-level OS).

See doc.md for a description of the basic syntax and semantics.

Interpreter

There are currently two interpreters: a basic one written in Python, and another one in C++ being worked on (which will become the primary interpreter).

The dependencies of the C++ interpreter are libgmp and libgc.

Example

[
{ the classic introduction }
print! '"Hello, World!'
{ checks if a number is prime using trial division }
def-query! `` is-prime? [ n ] [
 m: 2
 prime: `` true
 while! [ return: ( m < n ) ] [
 if! ( n divisible-by? m ) [
 self2 prime: `` false
 ] [ ]
 self m: ( m + 1 )
 ]
 return: prime
]
{ enumerate all primes up to 100 }
i: 2
while! [ return: ( i < 100 ) ] [
 if! ( is-prime? i ) [
 print! i
 ] [ ]
 self i: ( i + 1 )
]
]