LEXICAL ANALYSIS
CONSTRUCTION OF A LEXICAL ANALYZER
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Noam Chomsky
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Alan Turing
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Steve Kleen
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Cook
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Detailed explanation-1: -What is Chomsky’s language hierarchy? Formal languages are organized into a nested hierarchy of increasing complexity, famously captured by Noam Chomsky’s four-level Chomsky Hierarchy: regular, context-free, context-sensitive, and computably enumerable languages.
Detailed explanation-2: -In formal language theory, computer science and linguistics, the Chomsky hierarchy is a containment hierarchy of classes of formal grammars. This hierarchy of grammars was described by Noam Chomsky in 1956.
Detailed explanation-3: -Chomsky’s theory of language acquisition argues that human brain structures naturally allow for the capacity to learn and use languages. Chomsky believed that rules for language acquisition are innate (inborn) and strengthen naturally as humans grow and develop.
Detailed explanation-4: -Type 0 − It is an Unrestricted grammars. Example − Turing Machine (TM) Type 1 − Context-sensitive grammars. Example − Linear Bounded Automaton (LBA) Type 3 − Context-free grammars − Example − Pushdown Automaton (PDA) Type 3 − Regular grammars. Example − Finite Automaton (FA) 16-Jun-2021