Transcription of EBNF: A Notation to Describe Syntax
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Chapter 1 ebnf : A Notation toDescribe SyntaxPrecise language is not the problem. Clear language is the FeynmanChapter Objectives Learn the four control forms in ebnf Learn to read and understand ebnf descriptions Learn to prove a symbol is legal according to an ebnf description Learn to determine if ebnf descriptions are equivalent Learn to write ebnf descriptions from specifications and exemplars Learn the difference between Syntax and semantics Learn the correspondence between ebnf rules and Syntax charts Learn to understand the meaning of and use recursive ebnf IntroductionEBNF is a Notation for formally
The languages in Chomsky’s hierarchy, along with the machines that recognize them, are studied in computer science, mathematics, and linguistics under the topics of formal language and automata theory. 1.3 EBNF Rules and Descriptions An EBNF description is an unordered list of EBNF rules. Each EBNF rule EBNF descriptions comprises a
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