haml 4.0.0.rc.1

Haml (HTML Abstraction Markup Language) is a layer on top of HTML or XML that's designed to express the structure of documents in a non-repetitive, elegant, and easy way by using indentation rather than closing tags and allowing Ruby to be embedded with ease. It was originally envisioned as a plugin for Ruby on Rails, but it can function as a stand-alone templating engine.