Pirat Programming Language Interpreter

What is this?

Pirat is a fully interpreted pirate-themed programming language with syntax loosely inspired by python. This implementation uses a recursive top-down parser (Pratt), and tree-walking evaluator. And before you ask, there are no other implementations and the language itself is not very well defined.

Features

Functions

yar greeting be f(x):
  gives 'Hello ' + x + "!".
.
greeting('world!').

For (4) loops

yar i be 0.
4 i < 10:
  if i = 6:
    break.
  .
  i be i + 1
.

Arrays

yar arrrrr be [1, "2", (1+2), [1, 2, 3]].
arrrrr[0] be 2.

Hash maps

yar map be {"key1": 1, "key2": 2}.
map["key3"] be "three".

Control flow

if nay <> ay:
  ahoy("false is not equal to true").
lsif i = 1:
  ahoy("i equals 1").
ls:
  ahoy("Else block hit").
.

Chests (structs)

chest myChestType|foo, bar|.
yar instance be myChestType|"fooVal", f(): gives "barval"..|.
instance|foo be instance|bar().

How to run locally (assuming you are not using the release executables)

You should have golang and make installed

For repl: make repl

With a pir file: make run FILE=<YOUR_PIR_FILE>