![]() Identifiers: \( \ ( \ \ | \ \ )*\)Ĭonstruct a regular expression that matches all lexemes for all tokens ![]() Write a regular expression (or rule) for the lexemes of each token Integer, Keyword, Identifier, \(\ldots\).Regular Expressions to Lexical Specification We can adapt regular expressions to meet this goal Testing for set membership is not enough, we need to partition the input into tokens Regular Expressions in Lexical SpecificationĪ regular expression specifies a predicate \(s \in L(R)\), that is, is a string \(s\) a member of the language \(L(R)\) Regular expression \(\rightarrow\) NFA \(\rightarrow\) DFA \(\rightarrow\) Tables.Specify lexical structure using regular expressions Implementation of Lexical Analysis CSC 310 - Programming Languages Outline ![]()
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