A tree-walking Lox interpreter in Python - based on the book "Crafting Interpreters" by Robert Nystrom

• Programming language implementations are interesting!
• Get better at OOP (the book uses Java already, but I don't know Java)
• Get better at Python

Py-lox is a fully-featured interpreter for the Lox programming language. The lox language is very similar to Java, with focus on object-oriented design.

• Variables (var)
• Conditionals (if, else if, else)
• Iteration (for, while)
• Functions (fun)
• Classes (class, super)
• Printing (print)
• Comments (//)

git clone https://github.com/kris-gaudel/py-lox.git

cd py-lox
cd pylox
cd src

python3 lox.py

python3 lox.py [path to file]

print "Hello, world!";

var a = 1;

if (a == 1) {
  print "1";
} else {
  print "not 1";
}

var b = 1;

while (b < 5) {
  print b;
  b = b + 1;
}

for (var b = 1; b < 5; b = b + 1) {
  print b;
}

fun say_hello(name) {
  return "Hello" + name + "!";
}
print say_hello("Kris");

class Breakfast {
  init(meat, bread) {
    this.meat = meat;
    this.bread = bread;
  }
}

class Brunch < Breakfast {
  init(meat, bread, drink) {
    super.init(meat, bread);
    this.drink = drink;
  }
}