Excited-ccccly / pylox

Lox language implemented in Python

pylox

Lox language implemented in Python. Inspired by Bob Nystrom's Crafting Interpreters

Features

• booleans, numbers, strings and nil datatypes
• dynamic typing
• control flow. if, while, for statement
• closures
• recursion
• class
• inheritance

more at examples

Developer Guide

Make sure you have python 3.7 installed, other versions are not tested. Here I use python venv, and I highly suggest you do also:

$ git clone https://github.com/Excited-ccccly/pylox
$ cd pylox/
$ mkdir .venv
$ python -m venv .venv
$ source .venv/bin/activate
$ pip install -r requirements.txt & pip install -r requirements.dev.txt
$ python setup.py develop

more at CONTRIBUTING

Usage

This project will register a command, pylox, in your environment(venv or system). If you use venv as I suggested, pylox will only be avaliable in venv and you have to activate venv before use pylox to interpret

Execute pylox with a script filepath argument to interpret it

$ pylox tests/data/interpreter/visitor_pattern_in_lox.lox

or without a argument to enter REPL mode

$ pylox

Know Issues

• In REPL mode, user have to input a blank line to get code interpreted.