Curl is a unique language that unifies text formatting, scripting and object-oriented programming in a single environment. The idea is to write everything from simple text to advanced application logic without switching languages or tools - like having HTML, JavaScript and Java bundled together.

The language was developed at MIT and released in 1998. It’s mainly used to build interactive enterprise web applications. With Curl you can create "applets" that run in a dedicated runtime, enabling both online and offline usage. Strong typing and support for multiple inheritance make it a powerful option for complex applications.

If you want a language that lets you seamlessly combine content and logic, Curl is worth exploring.