NDLI: Common Lisp relations: an extension of Lisp for logic programming

Content Provider	IEEE Xplore Digital Library
Author	Thrift, P.
Copyright Year	1988
Description	Author affiliation: Texas Instrum. Comput. Sci. Center, Dallas, TX, USA (Thrift, P.)
Abstract	The author presents a set of relational constructs that support logic programming in the Common Lisp framework. These constructs support locally defined and first-class relations, an interface between function and relation-calling logical variables as first-class Lisp objects, and the ability to define relations over Common Lisp structures. The relational programming constructs are amenable to standard Prolog compilation techniques, thus making possible high-speed performance. A relation is an executable specification defined in terms of a sequence of clause-expressions. Each clause-expression specifies a list of argument patterns that determine the selection and local bindings of the clause as well as a sequence of goals that must be satisfied for the clause to succeed. Sequences of clause-expressions are used for defining relations and single lambda-expressions are used for defining functions. As an analog to the usual function-calling execution mode of Common Lisp, a relation-calling mechanism is provided. The semantics of passing values between relations and functions is described.<>
Starting Page	332
Ending Page	337
File Size	307846
Page Count	6
File Format	PDF
ISBN	0818608749
DOI	10.1109/ICCL.1988.13081
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1988-10-09
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Logic programming Instruments Computer science Programming profession Control systems Object oriented modeling Functional programming Runtime Terminology
Content Type	Text
Resource Type	Article

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