LEXICAL ANALYSIS
ROLE OF THE LEXICAL ANALYZER
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Identifiers
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Constants
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Keywords
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None of the above
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Detailed explanation-1: -Explanation: Individual Token is also Called Lexeme.
Detailed explanation-2: -Explanation: A lexeme is a string of characters that form a syntactic unit.
Detailed explanation-3: -Token: A token is a group of characters having collective meaning: typically a word or punctuation mark, separated by a lexical analyzer and passed to a parser. A lexeme is an actual character sequence forming a specific instance of a token, such as num. The pattern matches each string in the set.
Detailed explanation-4: -A programming language has a collections of words and symbols that are called lexemes. For example, C has symbols (, ), ->, etc. Reserved words include if and while. A variable or function name is also considered a lexeme, as are numeric and string constants.