Why do you want use Quail?
Very customizable
With basic regex preprocessor, ability to use any value as an object with its own methods and fields and possibility to override almost every operator you can create very convenient in use code.
Java-compatible
Since Quail is written in Java, you can either embed Quail in Java app or embed Java source code or compiled jar into your Quail project.
Best features
Quail's goal is to create the most convenient in use language using the best practices, syntaxes and approaches from different languages.
Already interested?
Go see the full overview, the "Getting Started" or proceed to download