The semantics of Prolog programs is usually given in terms of model theoretic semantics. However, this does not adequately characterize the computational behavior of Prolog programs. Prolog implementations typically use a depth-first left-to-right evaluation strategy based on the textual order of clauses and literals in a program. In this paper we introduce a self-interpreter for Prolog, which is a formalization of the syntax and semantics of Prolog using Prolog. This interpreter is a running program that mimics the depth-first left-to-right evaluation strategy of Prolog interpreters. This means that, the computational behavior of Prolog is captured by obtaining an operational semantics of Prolog based on the logic + control perspective of Prolog. In addition, this paper explains the important difference between the self-interpretation approach used in this paper and the meta-circular interpretation approach. And how self-interpretation considered a true semantic definition of the object language as it sheds light onto all features of the object language, and does not hide features in the features of the defining language.
|Commitee:||Eaton, Nancy, Lamagna, Edmund|
|School:||University of Rhode Island|
|School Location:||United States -- Rhode Island|
|Source:||MAI 50/05M, Masters Abstracts International|
|Keywords:||Logic programming, Prolog, Self-interpreter|
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