This is my implementation of Lox/VM (thus "vlox", because I implemented the AST based one in C++ instead of Java, and that was "clox"...), with all the challenges I went through, plus some extensions.

It's a work in progress, really.

Included extras:

• Implemented most of the challenges in the original book, meaning indices are not limited to 8 bits any longer, among other things.
• Integers are a separate type, mostly for use as indexes.
• List support, based on Caleb Schoepp's suggestions. Additionally:
  • Support for negative indexing
  • Support for slicing using the same syntax and conventions as Python.
    • Assignment to slices still pending.
  • Made append/delete into keywords (for the time being):
    • append expression newelement - where expression returns a list.
    • delete identifier[expression] - where identifier must refer to a list.
  • Deleting enough elements from a string makes it shrink. The current implementation is a bit naive though (just halve its capacity whenever possible).
• Generalized indexing and slicing so that it works on strings.