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What is the primary function of a lexical analyzer in a compiler?

Practice Questions

Q1
What is the primary function of a lexical analyzer in a compiler?
  1. To generate intermediate code
  2. To parse the source code
  3. To tokenize the input source code
  4. To optimize the code

Questions & Step-by-Step Solutions

What is the primary function of a lexical analyzer in a compiler?
  • Step 1: Understand that a lexical analyzer is a part of a compiler.
  • Step 2: Know that the compiler takes source code as input.
  • Step 3: Realize that the source code is made up of characters and symbols.
  • Step 4: The lexical analyzer reads the source code character by character.
  • Step 5: It groups these characters into meaningful units called tokens.
  • Step 6: Tokens can be keywords, identifiers, operators, or symbols.
  • Step 7: The output of the lexical analyzer is a list of these tokens.
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