Recall from the project overview that a knowledge-base is a set of clauses

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Recall from the project overview that a knowledge-base is a set of clauses: facts and rules described by prolog expressions. The purpose of this milestone is to develop the data structures to represent a prolog clause and define the API for the KnowledgeBase class with a partial implementation.

Clause Structure

A clause in prolog represents either a fact or a rule and is composed of two parts: a required head, consisting of a single expression, and an optional body, consisting of an expression list. This can be simply defined as:

 

 

Knowledgebase Class

 

The class will be used to hold the clauses that make up our vt-prolog program. The

programmer can add a clause to the knowledge-base using a member function call , and make

queries using a member function . The class also has members to determine the number of clauses,

called and the ability to iterate through the clauses in arbitrary order using a constant iterator.

 

 

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