foxchitter

This my experimental Chitter interpreter written in Ruby.

Chitter is a programming language, specifically a "catlang" (batlang), designed and developed by my girlfriend Iris. You'll find it to be a cute little stack-based scripting language with a small set of dynamic types. Here's a tiny example program that I quite like:

99 { DUP OUT " bottles of beer on the wall" PRINT DEC }> 99 FOR
"no more bottles of beer on the wall" PRINT

As for this interpreter, I chose Ruby because I wanted to learn it, and I chose Chitter because I really like it, and I also like my girlfriend, obviously.

I've gone to some effort to keep the code organized, obvious, and well-documented. Ideally, it should be readable/understandable for various other users.

Usage is pretty straightforward: $ ruby src/chitter.rb <files...>
There is also a REPL available if you don't pass any files.

TODO:

1. make arrays copy themselves eg. for reopening or a[ 1 2 3 ]> (test to make sure this actually works)
2. finish implementing the various built-in functions
3. make the repl nicer and add a CLI with flags
4. debugger would be nice
5. a test suite to verify the behaviour, especially against the reference interpreter