FastScript

FastScript is a powerful, cross-platform, multi-language scripting engine designed for developers who want to add scripting capabilities to their applications. It is a 100% Object Pascal solution and can be installed in Borland Delphi versions 4-7, 2005, 2006, 2007, C++Builder versions 4-6, Kylix versions 1-3, and Lazarus.

One of the unique features of FastScript is its ability to use multiple programming languages, including PascalScript, C++Script, JScript, and BasicScript. This enables developers to write scripts in their preferred language. Additionally, FastScript does not require the use of Microsoft Scripting Host, making it compatible with both Windows and Linux environments.

With FastScript, you can easily add a new language to the engine, and language definitions are stored in XML format, enabling easy customization without requiring Delphi coding skills.

The feature set of FastScript includes support for multiple languages, procedural language, standard language sets for variables, constants, procedures, nested functions, all standard operators and statements, types, classes (with methods, properties, indices, and default properties), types compatibility checking, and access to any object within your application. Furthermore, the engine offers a small footprint, with file sizes typically ranging from 80-150 Kb.

Overall, if you're looking for a reliable, easy-to-use, and flexible cross-platform scripting engine, FastScript is definitely worth a closer look.