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What is DCG

Encyclopedia of Information Science and Technology, Second Edition
A definite clause grammar is a Prolog built-in mechanism for implementing attribute grammars efficiently using difference lists.
Published in Chapter:
Attribute Grammars and Their Applications
Krishnaprasad Thirunarayan (Wright State University, USA)
DOI: 10.4018/978-1-60566-026-4.ch046
Attribute grammars are a framework for defining semantics of programming languages in a syntax-directed fashion. In this chapter, we define attribute grammars, and then illustrate their use for language definition, compiler generation, definite clause grammars, design and specification of algorithms, and so forth. Our goal is to emphasize its role as a tool for design, formal specification and implementation of practical systems, so our presentation is example rich.
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