The Next Scripting Framework (NSF) was developed based on the notion of language-oriented programming. The framework allows a language developer to work with multiple object systems on top of Tcl in a single workspace. The developer can benefit from a rich and extensible set of predefined functions (typically implemented in C) which can be registered for use on objects and classes in a given object system. NSF provides a tool box for defining dynamic, object-oriented, and domain-specific...