COMPILER DESIGN

LEXICAL ANALYSIS

ROLE OF THE LEXICAL ANALYZER

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following are Lexemes?
A
Identifiers
B
Constants
C
Keywords
D
All of the mentioned
Explanation: 

Detailed explanation-1: -Explanation: Different Lexical Classes or Tokens or Lexemes Identifiers, Constants, Keywords, Operators.

Detailed explanation-2: -Explanation: A lexeme is a string of characters that form a syntactic unit.

Detailed explanation-3: -Explanation: Individual Token is also Called Lexeme.

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.

Detailed explanation-5: -Techopedia Explains Lexeme A lexeme is a basic unit of meaning. Lexemes are the headwords in dictionaries. The lexeme “play, ‘’ for example, can take many forms, such as playing, plays, played. A lexicon consists of lexemes.

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