Reactive scripts

Reactive scripts are designed to get a exible approach for responsive systems; they are based on the reactive/synchronous approach, well suited to real time programming. A reactive script interpretor is a broadcast event-driven interpretor which can react to several commands in parallel. Generating events and waiting for occurrence of events are the basic commands which are composed in several ways to build complex behaviors. The basic principle is that absence of an event cannot be decided before the end of the current inter-pretor reaction. One can deene objects with associated methods (behaviors), run when a nonblocking order is sent to them. Method execution is immediate (in the same interpretor reaction as the order) and a method can be executed at most once during each reaction. Reactive scripts are a mix of two formalisms: the SL synchronous language, and the ROM Reactive Object Model. Reactive script interpretors are implemented using the Reactive-C language.