Introduction to the Galaxy language
A.F. Beetem, J.F. Beetem · IEEE Software · 1989
Galaxy provides a basis for an all-level language for special-purpose applications through notational, syntactic, and semantic extensions. A primary goal was to narrow the gap between a problem's domain and its specification language. The concepts on which Galaxy is based are discussed, and its constructs are examined. The nontraditional compiler-implementation techniques necessitated by the separation of syntax and semantics in Galaxy are considered.>