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What is the purpose of a lexical analyzer generator?
What is the purpose of a lexical analyzer generator?
To generate a program that reads input character stream, breaks it into tokens, and reports lexical errors.
How are regular expressions used in the process of lexical analysis?
How are regular expressions used in the process of lexical analysis?
Regular expressions describe the languages that can be recognized by finite automata.
What is the relationship between NFAs and DFAs in lexical analysis?
What is the relationship between NFAs and DFAs in lexical analysis?
NFAs are initially generated from regular expressions, which are then converted into equivalent DFAs.
Why is it essential to minimize the DFA in lexical analysis?
Why is it essential to minimize the DFA in lexical analysis?
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What is the role of code emitted by the DFA tables in lexical analysis?
What is the role of code emitted by the DFA tables in lexical analysis?
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