ChitChat, an educational object oriented language

ChitChat is a toy language designed to explain basic object oriented programming concepts to absolute beginners.

NOTE: ChitChat is now still mainly an experiment. If you want to give it a try is should not eat your laundry, but it might be buggy and generally not always behaving as it is supposed to. I will try to make it better and well behaved if there is interest in the project.

Installation

npm -g install chitchat-lang

How does it look like:

This is a valid ChitChat program:

a cat is a kind of being

when a cat is told "get off the sofa!" it replies "meow :)"

Tandoori is a cat

tell Tandoori "get off the sofa!"

Running this program should return "meow :)"

Another slightly more complex example:

a kid is a kind of being

when a kid is told "how old will you be in x years?" given x it replies its age + x

Jim is a kid

Jim's age is 7

tell Jim "how old will you be in x years?" given x: 3

This time the program should return 10

Getting started

There are currently three way to run a ChitChat program:

1. The ChitChat REPL: just run chitchat-repl

2. The web REPL: just open web_repl/index.html in the browser and type in your code

3. Use it as an npm package:

   var chitchat = require('chitchat-lang')
   chitchat.eval('sum is 1 + 2')

TODOs:

• [x] More primitive types: Float, Boolean, Nothing
• [x] Better comparison operator (maybe an equals keyword)
• [x] if expression without an else clause
• [ ] Support for arrays