DyALog uses
This chapter presents briefly the theoretical background behind DyALog and some internal details about its implementation.
Logical Push-Down Automata are a natural extension of the Push-Down Automata. They may be non-deterministic. The main difference is the use of unification for transition application.
We consider three basic kinds of transitions:
Given a set of clauses (and eventually a query), the compilation process builds some code of an Abstract Machine and a set of objects that encapsulate this code. The resulting code is either emulated or emitted toward a C file.
The emitting phase emits the compiled code to a C file. Futrhermore, some additional code needed to build terms, objects and to run initialization is also emitted.
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