January - JSON parser

1. https://www.pythonkitchen.com/building-a-lexer-in-python-tutorial/
2. https://www.pythonkitchen.com/dsl-python-new-language-how-to-build-a-css-pre-processor-like-sass-from-scratch-dotdot/
3. https://www.pythonkitchen.com/building-an-indentation-analyser-in-python-tutorial/