Alerts Wishlist Cart

What is the role of regular expressions in lexical analysis?

Practice Questions

Q1
What is the role of regular expressions in lexical analysis?
  1. To define the grammar of the programming language
  2. To specify the syntax of the tokens
  3. To generate intermediate code
  4. To optimize the parsing process

Questions & Step-by-Step Solutions

What is the role of regular expressions in lexical analysis?
  • Step 1: Understand what lexical analysis is. It is the process of breaking down text into smaller parts called tokens.
  • Step 2: Know that tokens are the basic building blocks of programming languages, like keywords, operators, and identifiers.
  • Step 3: Learn that regular expressions are patterns used to match strings of text. They help define what a token looks like.
  • Step 4: Realize that the lexical analyzer uses regular expressions to identify and categorize tokens in the text.
  • Step 5: Conclude that regular expressions provide a way to specify the rules for recognizing different types of tokens.
No concepts available.
Biology (School & UG)
Biology (School & UG)
Chemistry (School & UG)
Chemistry (School & UG)
Civil Engineering
Civil Engineering
Commerce & Accountancy
Commerce & Accountancy
Computer Science & IT
Computer Science & IT
Current Affairs & GK
Current Affairs & GK
Data Structures & Algorithms
Data Structures & Algorithms
eBooks
eBooks
Electrical & Electronics Engineering
Electrical & Electronics Engineering
English (School)
English (School)
General Aptitude
General Aptitude
General Knowledge
General Knowledge
General Knowledge & Current Affairs
General Knowledge & Current Affairs
Languages & Literature
Languages & Literature
Law & Legal Studies
Law & Legal Studies
Major Competitive Exams
Major Competitive Exams
Mathematics (School)
Mathematics (School)
Mechanical Engineering
Mechanical Engineering
Medical Science
Medical Science
Physics (School & Undergraduate)
Physics (School & Undergraduate)
Quantitative Aptitude & Reasoning
Quantitative Aptitude & Reasoning
Social Science (School)
Social Science (School)
Technical
Technical
Verbal and Reasoning
Verbal and Reasoning
Vocational & Skill Development
Vocational & Skill Development
Soulshift Feedback ×

On a scale of 0–10, how likely are you to recommend The Soulshift Academy?

Not likely Very likely