Tox

Tox is a small programming language that has been inspired by the Jlox programming language from https://craftinginterpreters.com/

The scanner, parser & interpreter have all been built by hand, no external library has been involved

Running Tox Locally

1. Clone this project
2. Create a src folder on the root.
3. Run npm install and npm run build:watch
4. Open a new terminal and run node src/tox.js file test.tox to run a file (test.lox is in the root)
5. To run the repl run node src/tox.js repl

Syntax

The syntax is similar to Javascript for the most part.

Variable declaration

let number = 12;
let name = "hundred";

Looping

For loops

  for(let i = 0; i < 5; i = i + 1) {
    log i;
  }

While loops

let num = 0
while(num < 5) {
    log "Running";
    num = num + 1;
}

Functions

fn greetings(name) {
    return "Hello " + name;
}

log greetings("World");

Conditionals

let answer = "work";
if(answer == "work") {
    log "correct";
} else {
    log "try again";
}

log nil or "twelve"; // prints "twelve"

Extra features.

Do Statement.

I took inspiration from the do expression that's currently an Ecmascript expression

let a = 12;
do {
  if(a == 111) {
    log("true");
  } else {
    log("false"); //logs false here
  }
}