PSul

PSul is a lightweight, embeddable scripting language and runtime designed for use inside host applications. It provides a compact, expressive toolset for extending software through plugins, configuration, and automation. PSul prioritizes safety in embedded contexts, offering a sandboxed execution environment and a controlled interface to host resources.

PSul features dynamic typing, automatic memory management, first-class functions, and a modular system. The syntax is intended to be approachable for developers familiar with popular scripting languages, while maintaining predictable performance for embedded use. The language ships with a small standard library and supports a foreign function interface to call into host code.

There are reference implementations that include an interpreter and an optional bytecode virtual machine. PSul runs on major desktop and mobile platforms and is designed to be embedded in C/C++ applications, with bindings available for additional languages to ease integration.

PSul is used to extend applications, implement in-app scripting for games and tools, and enable automation in lightweight workflows. Its ecosystem includes example projects, small libraries, and tooling such as debuggers and package management aimed at simplifying deployment in host programs.

Critics note that PSul trades peak performance for portability and safety, and that its ecosystem remains smaller than those of more established languages. Proponents argue that its focused scope makes it a practical choice for plugin architectures and educational purposes.

Related topics include scripting languages, embedding, and plugin architectures.