Computer Science Engineering (CSE) Exam > Computer Science Engineering (CSE) Notes > Compiler Design > PPT: Lexical Analysis
PPT: Lexical Analysis | Compiler Design - Computer Science Engineering (CSE) PDF Download
| Download, print and study this document offline |
Please wait while the PDF view is loading
Page 1 Chapter 3 Lexical Analysis Page 2 Chapter 3 Lexical Analysis Outline ? Role of lexical analyzer ? Specification of tokens ? Recognition of tokens ? Lexical analyzer generator ? Finite automata ? Design of lexical analyzer generator Page 3 Chapter 3 Lexical Analysis Outline ? Role of lexical analyzer ? Specification of tokens ? Recognition of tokens ? Lexical analyzer generator ? Finite automata ? Design of lexical analyzer generator The role of lexical analyzer Lexical Analyzer Parser Source program token getNextToken Symbol table To semantic analysis Page 4 Chapter 3 Lexical Analysis Outline ? Role of lexical analyzer ? Specification of tokens ? Recognition of tokens ? Lexical analyzer generator ? Finite automata ? Design of lexical analyzer generator The role of lexical analyzer Lexical Analyzer Parser Source program token getNextToken Symbol table To semantic analysis Why to separate Lexical analysis and parsing 1. Simplicity of design 2. Improving compiler efficiency 3. Enhancing compiler portability Page 5 Chapter 3 Lexical Analysis Outline ? Role of lexical analyzer ? Specification of tokens ? Recognition of tokens ? Lexical analyzer generator ? Finite automata ? Design of lexical analyzer generator The role of lexical analyzer Lexical Analyzer Parser Source program token getNextToken Symbol table To semantic analysis Why to separate Lexical analysis and parsing 1. Simplicity of design 2. Improving compiler efficiency 3. Enhancing compiler portability Tokens, Patterns and Lexemes ? A token is a pair a token name and an optional token value ? A pattern is a description of the form that the lexemes of a token may take ? A lexeme is a sequence of characters in the source program that matches the pattern for a tokenRead More
|
26 videos|66 docs|30 tests
|
FAQs on PPT: Lexical Analysis - Compiler Design - Computer Science Engineering (CSE)
| 1. What is lexical analysis in computer science engineering (CSE)? |  |
Ans. Lexical analysis in computer science engineering (CSE) is the process of converting a sequence of characters into a sequence of tokens or lexemes. It is the first phase of the compiler design, where the input program is scanned to identify the basic units, such as keywords, identifiers, literals, and operators.
| 2. What is the role of lexical analysis in the compilation process? | |
Ans. The role of lexical analysis in the compilation process is to analyze the source code and break it down into meaningful tokens. It helps in identifying and categorizing the different elements of the code, such as keywords, identifiers, literals, and operators. The tokens generated by lexical analysis are then used in subsequent phases of the compiler, such as parsing and semantic analysis.
| 3. What are tokens in lexical analysis? | |
Ans. In lexical analysis, tokens are the smallest meaningful units of a programming language. They represent the various elements of the source code, such as keywords, identifiers, literals, and operators. Tokens are generated by the lexer or scanner, which scans the input program character by character, identifying and categorizing the elements based on predefined rules.
| 4. What is the purpose of using regular expressions in lexical analysis? | |
Ans. Regular expressions are used in lexical analysis to define the patterns for identifying different tokens in the source code. Each token type is associated with a regular expression that describes its structure and characteristics. These regular expressions are used by the lexer or scanner to match and extract the tokens from the input program.
| 5. How does lexical analysis contribute to compiler optimization? | |
Ans. Lexical analysis plays a role in compiler optimization by identifying and eliminating unnecessary or redundant tokens from the source code. By removing such redundant tokens, the compiler can reduce the size of the intermediate representation and improve the efficiency of subsequent compilation phases. Additionally, lexical analysis can also detect and report lexical errors, helping in the early detection and resolution of issues in the code.
Related Exams
About this Document
|
4.61/5 Rating |
|
Dec 21, 2024 Last updated |
Document Description: PPT: Lexical Analysis for Computer Science Engineering (CSE) 2024 is part of Compiler Design preparation.
The notes and questions for PPT: Lexical Analysis have been prepared according to the Computer Science Engineering (CSE) exam syllabus. Information about PPT: Lexical Analysis covers topics
like and PPT: Lexical Analysis Example, for Computer Science Engineering (CSE) 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises and tests below for PPT: Lexical Analysis.
Introduction of PPT: Lexical Analysis in English is available as part of our Compiler Design
for Computer Science Engineering (CSE) & PPT: Lexical Analysis in Hindi for Compiler Design course.
Download more important topics related with notes, lectures and mock test series for Computer Science Engineering (CSE)
Exam by signing up for free. Computer Science Engineering (CSE): PPT: Lexical Analysis | Compiler Design - Computer Science Engineering (CSE)
Description
Full syllabus notes, lecture & questions for PPT: Lexical Analysis | Compiler Design - Computer Science Engineering (CSE) - Computer Science Engineering (CSE) | Plus excerises question with solution to help you revise complete syllabus for Compiler Design | Best notes, free PDF download
Information about PPT: Lexical Analysis
In this doc you can find the meaning of PPT: Lexical Analysis defined & explained in the simplest way possible. Besides explaining types of
PPT: Lexical Analysis theory, EduRev gives you an ample number of questions to practice PPT: Lexical Analysis tests, examples and also practice Computer Science Engineering (CSE)
tests
|
Explore Courses for Computer Science Engineering (CSE) exam
|
|
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
Related Searches
Extra Questions
,Sample Paper
,Important questions
,practice quizzes
,shortcuts and tricks
,study material
,Objective type Questions
,video lectures
,Viva Questions
,Summary
,mock tests for examination
,ppt
,MCQs
,PPT: Lexical Analysis | Compiler Design - Computer Science Engineering (CSE)
,past year papers
,PPT: Lexical Analysis | Compiler Design - Computer Science Engineering (CSE)
,PPT: Lexical Analysis | Compiler Design - Computer Science Engineering (CSE)
,Previous Year Questions with Solutions
,Semester Notes
,Exam
,Free
;
Additional Information about PPT: Lexical Analysis for Computer Science Engineering (CSE) Preparation
PPT: Lexical Analysis Free PDF Download
The PPT: Lexical Analysis is an invaluable resource that delves deep into the core of the Computer Science Engineering (CSE) exam.
These study notes are curated by experts and cover all the essential topics and concepts, making your preparation more efficient and effective.
With the help of these notes, you can grasp complex subjects quickly, revise important points easily,
and reinforce your understanding of key concepts. The study notes are presented in a concise and easy-to-understand manner,
allowing you to optimize your learning process. Whether you're looking for best-recommended books, sample papers, study material,
or toppers' notes, this PDF has got you covered. Download the PPT: Lexical Analysis now and kickstart your journey towards success in the Computer Science Engineering (CSE) exam.
Importance of PPT: Lexical Analysis
The importance of PPT: Lexical Analysis cannot be overstated, especially for Computer Science Engineering (CSE) aspirants.
This document holds the key to success in the Computer Science Engineering (CSE) exam.
It offers a detailed understanding of the concept, providing invaluable insights into the topic.
By knowing the concepts well in advance, students can plan their preparation effectively.
Utilize this indispensable guide for a well-rounded preparation and achieve your desired results.
PPT: Lexical Analysis Notes
PPT: Lexical Analysis Notes offer in-depth insights into the specific topic to help you master it with ease.
This comprehensive document covers all aspects related to PPT: Lexical Analysis.
It includes detailed information about the exam syllabus, recommended books, and study materials for a well-rounded preparation.
Practice papers and question papers enable you to assess your progress effectively.
Additionally, the paper analysis provides valuable tips for tackling the exam strategically.
Access to Toppers' notes gives you an edge in understanding complex concepts.
Whether you're a beginner or aiming for advanced proficiency, PPT: Lexical Analysis Notes on EduRev are your ultimate resource for success.
PPT: Lexical Analysis Computer Science Engineering (CSE) Questions
The "PPT: Lexical Analysis Computer Science Engineering (CSE) Questions" guide is a valuable resource for all aspiring students preparing for the
Computer Science Engineering (CSE) exam. It focuses on providing a wide range of practice questions to help students gauge
their understanding of the exam topics. These questions cover the entire syllabus, ensuring comprehensive preparation.
The guide includes previous years' question papers for students to familiarize themselves with the exam's format and difficulty level.
Additionally, it offers subject-specific question banks, allowing students to focus on weak areas and improve their performance.
Study PPT: Lexical Analysis on the App
Students of Computer Science Engineering (CSE) can study PPT: Lexical Analysis alongwith tests & analysis from the EduRev app,
which will help them while preparing for their exam. Apart from the PPT: Lexical Analysis,
students can also utilize the EduRev App for other study materials such as previous year question papers, syllabus, important questions, etc.
The EduRev App will make your learning easier as you can access it from anywhere you want.
The content of PPT: Lexical Analysis is prepared as per the latest Computer Science Engineering (CSE) syllabus.
|
© EduRev
|
Education Revolution
|
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup