Tetra

Introduction

A basic interpreted language, written in Python!

Installation

You can clone the repo and then install it locally.

git clone https://github.com/Svenskithesource/Tetra
cd Tetra
pip3 install -e .

Usage

$ tetra -h
An interpreter for the tetra language.

positional arguments:
  filepath    The source file to run.

optional arguments:
  -h, --help  show this help message and exit
  -d, --dump  Print the top item on the stack after execution.

To run the REPL

$ tetra
No file specified. Starting REPL.
>>>

Unitests

To run the unitests do:

python -m unittest tests.test_tetra

Syntax

Typing

Tetra is a dynamically typed language so you don't need to specify what type a variable is. For now there's also not an option to show what type a var is.

Expressions

Expressions can contain math, variables. You can assign expressions to variables.

Math example:

1 + 1

Parentheses are also supported:

(1 + 1)*3

When you want to save an expression in a variable you can do like so:

a = 1 + 1

Because expressions can contain variables you can do

a = 1 + 1
b = a + 3