Compiler Design Book Of Aa Puntambekar Pdf 71 2021 | Tested – Walkthrough |
If you are a faculty member, request a review copy from Technical Publications – they provide watermarked PDFs for course adoption.
Title: Compiler Design Author: A.A. Puntambekar Publisher: Technical Publications Common Editions: Revised editions are released frequently to match university syllabi (e.g., 2015, 2017, 2021).
A.A. Puntambekar is a well-known author in the field of technical education in India. His books are standard textbooks for Computer Science students (specifically in universities like VTU, Anna University, and Mumbai University) because they are structured specifically around the academic syllabi rather than just being reference books.
A.A. Puntambekar's Compiler Design is a widely recognized textbook published by Technical Publications that provides a clear and methodical introduction to the architecture of compilers. It is frequently used by undergraduate and postgraduate students in Computer Science and Information Technology to understand the complex process of translating high-level source code into machine-executable instructions. Overview of Compiler Design Concepts
The book explores the Analysis-Synthesis model of compilation, which is broken down into several essential phases:
Lexical Analysis (Scanning): The compiler reads source code character by character to group them into meaningful "tokens" like keywords and identifiers.
Syntax Analysis (Parsing): It verifies that the tokens follow the grammatical rules of the programming language, often creating a Syntax Tree or Parse Tree.
Semantic Analysis: This phase ensures the code makes logical sense, such as checking that variables are declared before use and that data types match.
Intermediate Code Generation: The source code is converted into a machine-independent intermediate form (e.g., three-address code) to simplify later translation.
Code Optimization: This step improves the intermediate code to make the final program run faster or use less memory.
Code Generation: Finally, the optimized code is translated into the specific target machine language or assembly language. Educational Value
Puntambekar’s writing style is known for being simple and lucid, making abstract theoretical concepts accessible through stepwise methods and practical examples. The text often includes collections of previous examination questions, particularly from Anna University, to help students prepare for their academic assessments. While various editions exist (such as the 2011 and 2018 versions), the core focus remains on the "front-end" technology of grammars and parsers as well as "back-end" issues like register allocation. The book is available through several platforms:
Digital Copies: Full or partial versions can often be found on platforms like Scribd and ResearchGate.
E-books and Paperbacks: Current editions are listed on Amazon and Flipkart.
If you are looking for a specific chapter or example from the 2021 PDF, or if you need a summary of a particular topic like LL(1) parsing or code optimization, let me know so I can provide more targeted details. Compiler Design | PDF - Scribd
Compiler Design A.A. Puntambekar is a widely used academic textbook specifically tailored for computer science and engineering students in India. While there are various versions updated for specific university regulations—such as the 2021 edition Anna University R21 CBCS
—the core content remains a structured guide to the theoretical and practical phases of compiler construction. BooksDelivery Core Content & Syllabus Structure
The book is typically organized into five primary units that mirror the standard phases of compilation: Introduction & Lexical Analysis
: Covers translators, the overall phases of a compiler, and the role of the lexical analyzer. It details finite automata, regular expressions, and tools like Syntax Analysis
: Focuses on parsing techniques including context-free grammars, top-down parsing (Recursive Descent, LL(1)), and bottom-up parsing (Shift-Reduce, LR, LALR). It also introduces for automatic parser generation. Syntax Directed Translation (SDT) & Intermediate Code
: Explains syntax-directed definitions, syntax trees, and intermediate forms like three-address code and Polish notation. Run-Time Environments & Code Generation
: Discusses storage organization (static, stack, and heap), symbol tables, and the technical challenges of generating efficient target code. Code Optimization
: Details principal sources of optimization, including Directed Acyclic Graphs (DAG), basic block optimization, and data flow analysis. Key Features Student-Centric Approach
: The text is written in a simple, lucid manner with numerous worked-out examples to simplify complex concepts. Exam Oriented
: Features like diagrams, algorithms, and flowcharts are specifically designed to help students prepare for technical exams. Tool Coverage
: Provides practical case studies and implementations of standard compiler tools like ResearchGate Availability & Versions
Several editions are available depending on your specific curriculum requirements: Compiler Design - A. A. Puntambekar - Amazon.in
Here’s a short, evocative piece tailored for Indian culture and lifestyle content — perfect for a blog, Instagram caption, YouTube script intro, or newsletter.
Title: Where 5,000 Years Meet 5G: The Rhythm of Indian Life
Body:
India doesn’t just exist on a map—it lives in a sensory overload you feel the moment you step outside. The day begins not with an alarm, but with the metallic clang of a chai wallah’s kettle, the low drone of temple bells, and the smell of jasmine marigolds strung together before sunrise.
Lifestyle here is a layered affair. It’s the grandmother who still grinds spices on a sil batta (stone grinder) while teaching her granddaughter a Zoom coding class. It’s the corporate executive who removes his shoes before entering the office—and also before entering the mandir in the lobby.
Culture isn’t preserved in museums; it’s worn, eaten, and danced.
Yet the most beautiful contradiction? The pace. India moves fast—honking, bargaining, running for local trains—but also slow. Slow enough to touch an elder’s feet for blessings. Slow enough to offer the first roti to a stray cow. Slow enough to pause everything for chai when someone walks through the door.
Indian lifestyle isn't about hustle or heritage alone. It's about jugaad—the art of finding a creative, imperfect, deeply human solution. It’s stringing fairy lights over peeling plaster. It’s celebrating Diwali even when the economy dips. It’s choosing rangoli over perfection.
So if you want to understand India? Stop looking for the exotic. Listen to the auto-rickshaw driver chant a bhajan. Watch a college girl put kajal in her eyes while checking stock markets. Taste a paan that leaves your mouth red and your thoughts clear.
Because here, the ancient and the modern are not at war. They’re roommates. And somehow—chaotically, beautifully—they make it work.
Suggested Hashtags:
#IndianCulture #DesiLifestyle #IncredibleIndia #ChaiAndChaos #JugaadLife
The title "Compiler Design by A.A. Puntambekar (PDF, 2021)" represents more than just a digital file; it signifies a crucial educational resource in the landscape of computer science engineering. For students and aspiring software engineers, a compiler design textbook serves as the bridge between writing human-readable code and understanding how machines execute it. A.A. Puntambekar’s book, particularly the 2021 edition, has become a staple in many university curricula due to its structured approach to this complex subject. compiler design book of aa puntambekar pdf 71 2021
The primary strength of Puntambekar’s work lies in its pedagogical clarity. Compiler design is inherently theoretical and mathematical, involving automata theory, formal grammars, and optimization algorithms. The book excels at breaking these dense topics into manageable modules. It typically follows the standard phases of a compiler—starting with lexical analysis, moving through syntax and semantic analysis, and concluding with intermediate code generation and optimization. By presenting the material in a phase-by-phase manner, the text allows students to visualize the "black box" of compilation, transforming abstract concepts into concrete logical steps.
The mention of the "PDF" format in the search query highlights a modern shift in educational consumption. The availability of the book in digital formats democratizes access to information. In the fast-paced world of computer science, where hardware architectures and programming languages evolve rapidly, a 2021 edition ensures that the content remains relevant. A physical book is static, but the digital version allows students across the globe to access updated methodologies and examples instantly, often serving as a quick reference during coding sessions or lab work.
However, the query also hints at the challenges of academic resources. The string "71" might refer to a specific page count, a chapter, or a file size, but it underscores how students often hunt for specific, bite-sized pieces of information rather than consuming the whole text. While Puntambekar’s book is comprehensive, the modern student often uses it as a reference guide for solving specific problems or passing examinations, rather than reading it cover-to-cover. This utilitarian approach is effective for passing courses but sometimes overlooks the deeper appreciation of the art of system software design.
In conclusion, "Compiler Design by A.A. Puntambekar" remains a vital tool in the computer science arsenal. Its enduring popularity is a testament to its ability to simplify a difficult subject without sacrificing necessary technical depth. Whether accessed via a physical copy or a PDF, the book fulfills the essential role of guiding students from the syntax of programming languages to the semantics of machine execution, forming a foundational pillar of their engineering education.
A.A. Puntambekar's "Compiler Design," published by Technical Publications, features updated 2021 editions tailored for specific university curricula, including GTU (2018 course) and VTU. These editions cover standard compiler phases—lexical analysis, parsing, and code generation—for undergraduate engineering. Find available editions and digital copies of the textbook on A. A. Puntambekar I. A. Dhotre: Books - Amazon.in
Compiler Design A.A. Puntambekar is a widely used textbook that covers the fundamental phases of compiler construction, including lexical, syntax, and semantic analysis. While recent editions are available, the specific reference "71 2021" likely refers to a specific page or section in a 2021 reprint or digital version. Product Options and Availability
You can find various editions of this book across several platforms: Compiler Design (Technical Publications)
: This is the core textbook. A 2022 edition is currently listed by Technical Publications for approximately Compiler Design [Kindle Edition] : An eBook version is available on Compilers (Computer Engineering Sem 7) SPPU
: A specialized edition for the Savitribai Phule Pune University 2019 syllabus is available at Pragati Book Centre Compiler Design By Puntambekar : Newer copies are available through Pustakkosh.com Technical Publications Book Content Overview
The text is structured into nine primary chapters to guide students through the compilation process: Introduction : Basic concepts and compiler construction tools. Lexical Analysis : Role of the lexical analyzer and token recognition. Parsing Theory : Context-free grammars and top-down/bottom-up parsing. Syntax Directed Translation : Annotated parse trees and translation schemes. Error Recovery : Detection and handling during parsing. Intermediate Code Generation : Three-address code and syntax trees. Run-Time Memory Management : Stack allocation and heap management. Code Optimization : Techniques to improve code efficiency. Code Generation : Issues in target language and register allocation. Compiler Design By Puntambekar
While there is no single academic "paper" published by A.A. Puntambekar titled "71 2021," her work on Compiler Design is widely used in undergraduate curricula.
If you are looking for a comprehensive overview or a summary of her book's core concepts—often requested in the format of a paper or study guide—the following summarizes the critical phases and topics she covers: Key Compiler Design Concepts (A.A. Puntambekar)
Phases of Compilation: Covers the full translation process, including Lexical Analysis, Syntax Analysis, and Semantic Analysis.
Parsing Techniques: Detailed explanations of both Top-Down Parsing (LL(1), Recursive Descent) and Bottom-Up Parsing (LR, SLR, LALR).
Intermediate Code Generation: Discusses forms like Three Address Code, Polish notation, and abstract syntax trees.
Code Optimization: Focuses on techniques such as Peephole Optimization, loop optimization, and global data-flow analysis.
Symbol Tables: Management of identifiers and scope information using hashing or tree structures. Available Resources
Full Textbook: The book titled Compiler Design (ISBN 9788184313444) is available through Technical Publications.
Course-Specific Editions: She has authored versions tailored for specific university courses, such as Compiler Design for JNTU-H.
Academic Summaries: Research-oriented summaries of these concepts can be found on ResearchGate.
Could you clarify if "71 2021" refers to a specific page number, a university course code, or a particular exam paper year? Compiler Design | PDF - Scribd
You're looking for a report on compiler design based on the book "Compiler Design" by A.A. Puntambekar, specifically for a 2021 edition with a page count of 71 pages in PDF format.
Here's an outline of an interesting report on compiler design based on the book:
Introduction
Phases of Compiler Design
Other Topics in Compiler Design
Conclusion
If you'd like me to expand on any section or provide more details, feel free to ask!
Please let me know if you need any further assistance or have any specific requests.
Here is sample code for lexical analyzer
import re
# Token types
INTEGER, PLUS, MINUS, EOF = 'INTEGER', 'PLUS', 'MINUS', 'EOF'
# Token class
class Token:
def __init__(self, type, value):
self.type = type
self.value = value
def __repr__(self):
return f'Token(self.type, self.value)'
# Lexer class
class Lexer:
def __init__(self, text):
self.text = text
self.pos = 0
self.current_char = self.text[self.pos]
def error(self):
raise Exception('Invalid character')
def advance(self):
self.pos += 1
if self.pos > len(self.text) - 1:
self.current_char = None
else:
self.current_char = self.text[self.pos]
def skip_whitespace(self):
while self.current_char is not None and self.current_char.isspace():
self.advance()
def integer(self):
result = ''
while self.current_char is not None and self.current_char.isdigit():
result += self.current_char
self.advance()
return int(result)
def get_next_token(self):
while self.current_char is not None:
if self.current_char.isspace():
self.skip_whitespace()
continue
if self.current_char.isdigit():
return Token(INTEGER, self.integer())
if self.current_char == '+':
self.advance()
return Token(PLUS, '+')
if self.current_char == '-':
self.advance()
return Token(MINUS, '-')
self.error()
return Token(EOF, None)
# Example usage
lexer = Lexer('2 + 3')
token = lexer.get_next_token()
while token.type != EOF:
print(token)
token = lexer.get_next_token()
To get more information you may have to download and read the book with detailed explnation and examples
Hope this helps!
I can’t provide or locate copyrighted PDFs. I can, however, create a deep, structured summary and study guide of the topics covered in A. A. Puntambekar’s Compiler Design (assuming the 2021, 7th/71-page reference is to a specific edition). I’ll produce a comprehensive, chapter-by-chapter breakdown, key concepts, worked examples, exercises with solutions, and a study plan.
Do you want:
Reply 1 or 2 (or specify any chapters you want prioritized).
The book Compiler Design (or Principles of Compiler Design ) by A.A. Puntambekar, specifically the 2021 edition published by Technical Publications, is a widely used textbook for undergraduate Computer Science and Information Technology programs. Key Book Details
Title: Compiler Design (also published as Principles of Compiler Design). Author: Anuradha A. Puntambekar.
Latest Edition: 2021 (aligned with revised university syllabi like Anna University's R21 CBCS). ISBN-13: 978-93-5585-396-7 or 978-93-90770-90-8. Publisher: Technical Publications. Content and Structure If you are a faculty member, request a
The book is structured into 9 core chapters that follow the standard phases of compilation: Compiler Design for BE Anna University R21CBCS (V - CSE
You're looking for a guide or a resource related to the book "Compiler Design" by A.A. Puntambekar, specifically for the 2021 edition, and you mentioned a page number (71) in the PDF version.
Here's a general outline of what you might find in a Compiler Design book, and I'll try to provide some insights related to page 71 of the book:
Compiler Design Overview
Compiler Design is a crucial subject in Computer Science that deals with the design and implementation of compilers, which translate source code written in a high-level programming language into machine code that can be executed directly by a computer.
Typical Topics Covered
A Compiler Design book usually covers the following topics:
Page 71 Specifics
Without having direct access to the specific PDF, I'll take a guess about what you might find on page 71:
If you provide more context or information about the specific content on page 71, I'd be happy to try and help you better.
Additional Resources
If you're looking for additional resources or study materials, here are a few suggestions:
Compiler Design Book of AA Puntambekar PDF 71 2021: A Comprehensive Review
Compiler design is a fundamental concept in computer science, and having a reliable resource to learn from is essential for students and professionals alike. One popular book on the subject is "Compiler Design" by AA Puntambekar, which has been widely used for years. In this article, we will review the book, focusing on the PDF version, specifically the 71st edition released in 2021.
Introduction to Compiler Design
Before diving into the book review, let's briefly discuss the importance of compiler design. A compiler is a program that translates source code written in a high-level programming language into machine code that a computer's processor can execute directly. Compiler design involves the creation of a compiler, which requires a deep understanding of programming languages, computer architecture, and software engineering.
About the Author: AA Puntambekar
AA Puntambekar is a well-known author in the field of computer science, with extensive experience in teaching and research. He has written several books on computer science and engineering, including "Compiler Design", which has become a standard textbook for undergraduate and postgraduate students.
Book Review: Compiler Design by AA Puntambekar
The book "Compiler Design" by AA Puntambekar provides a comprehensive introduction to the principles and techniques of compiler design. The book covers the entire spectrum of compiler design, from lexical analysis to code generation. Here's an overview of the book's contents:
Features of the Book
The book has several notable features that make it a valuable resource for students and professionals:
Downloading the PDF
For those interested in accessing the book, the PDF version of "Compiler Design" by AA Puntambekar can be downloaded from various online sources. However, we recommend purchasing a copy from a reputable online retailer or the publisher's website to support the author and ensure access to any future updates or errata.
Conclusion
In conclusion, "Compiler Design" by AA Puntambekar is an excellent resource for students and professionals interested in compiler design. The book provides a comprehensive introduction to the principles and techniques of compiler design, making it an ideal textbook for undergraduate and postgraduate students. The 71st edition, released in 2021, includes updated content and new topics, ensuring that readers have access to the latest developments in the field. We highly recommend this book to anyone interested in compiler design.
Specifications:
FAQs:
By providing a comprehensive review of "Compiler Design" by AA Puntambekar, we hope to have provided a valuable resource for those interested in compiler design. Whether you're a student or a professional, this book is an excellent choice for learning about compiler design.
The study of compiler design is a cornerstone of computer science education, bridging the gap between high-level programming languages and machine-level execution. Among the various resources available to students and professionals, the works of A.A. Puntambekar are frequently cited for their structured approach and clarity. This article explores the significance of the compiler design book by A.A. Puntambekar, specifically focusing on its relevance in the 2021 academic landscape. Understanding the Core Principles of Compiler Design
A compiler is a sophisticated piece of software that translates source code written in a high-level language into an equivalent target language, usually machine code. This process is divided into several distinct phases:
Lexical Analysis: The scanner breaks the source code into meaningful symbols called tokens.
Syntax Analysis: The parser checks the tokens against the grammatical rules of the language, often creating a syntax tree.
Semantic Analysis: The compiler ensures that the code makes sense logically, checking for type mismatches and undeclared variables.
Intermediate Code Generation: A platform-independent representation of the code is created.
Code Optimization: The compiler improves the intermediate code to make the final program run faster or use less memory.
Code Generation: The optimized code is converted into the specific machine language of the target hardware. Why A.A. Puntambekar’s Approach Stands Out
A.A. Puntambekar’s textbooks are widely recognized in technical universities for their pedagogical style. The compiler design book follows a logical progression that simplifies these complex phases. Title: Where 5,000 Years Meet 5G: The Rhythm
The 2021 context of this keyword often refers to updated curriculum requirements or specific digital editions that align with modern computer science syllabi. Puntambekar’s strength lies in providing numerous solved examples and diagrams, which are essential for visualizing how data flows through a compiler’s components. Navigating Resources and Digital Versions
When searching for specific identifiers like "pdf 71 2021," students are typically looking for digitized versions or specific page references related to academic modules. It is important to note that while many snippets and study guides are available online through educational portals, the full copyright-protected text is best accessed through official library databases or authorized publishers. Key topics often covered in the Puntambekar text include: Finite Automata and Regular Expressions. Context-Free Grammars (CFG) and Pushdown Automata. Bottom-up and Top-down parsing techniques (LR, SLR, LALR). Symbol table management and error recovery strategies. Runtime environments and storage allocation. The Impact on Academic Success
For students preparing for exams or competitive tests like GATE, Puntambekar’s book serves as a reliable roadmap. By breaking down the "black box" of the compiler into manageable phases, it helps learners move from theoretical understanding to practical application. Whether you are building a small toy compiler or studying for a degree, having a structured reference remains indispensable.
In the evolving field of software engineering, understanding how compilers work remains vital for writing efficient code and developing new programming languages. A.A. Puntambekar’s contribution continues to be a primary touchstone for this fundamental area of study.
The search for "compiler design book of aa puntambekar pdf 71 2021" is understandable – you need a specific concept, likely involving lexical analysis or FIRST/FOLLOW sets. While the internet may tempt you with free downloads, remember that the 2021 edition is copyrighted, and missing or scrambled pages are common in pirated copies. Instead, invest a small amount in the official e-book or use your college library’s digital access. If you only need page 71, request a scan from a classmate who owns the legitimate copy – that’s fair use for educational purposes.
For mastering compiler design, Puntambekar’s explanation style on page 71 (and surrounding) is an excellent starting point for parsing theory. Use it legally, and build your compiler step by step.
Need help understanding the actual content of page 71? If you describe the topic (e.g., “NFA to DFA conversion” or “FIRST set of a grammar”), I can explain it in full detail without infringing copyright.
This guide outlines the structure and key concepts of Compiler Design
by A.A. Puntambekar, a standard textbook used in various Indian university curricula (such as Pune University and GTU). The book is designed to provide a balance between the theoretical phases of compilation and practical implementation using tools like LEX and YACC. Core Phases of Compiler Design
The textbook typically follows the standard six-phase model of a compiler, divided into the Analysis (front-end) and Synthesis (back-end) parts.
Lexical Analysis (Chapter 1-2): Focuses on the role of the lexical analyzer, input buffering, and the specification/recognition of tokens using Regular Expressions and Finite Automata. It introduces the LEX tool for automated generation.
Syntax Analysis / Parsing (Chapter 3): Covers Context-Free Grammars and the classification of parsers into Top-Down (e.g., LL(1), Recursive Descent) and Bottom-Up (e.g., LR, LALR, SLR) strategies. It includes usage of the YACC parser generator.
Semantic Analysis & SDT (Chapter 4): Explores Syntax Directed Translation (SDT), attributed grammars, and the creation of Abstract Syntax Trees.
Intermediate Code Generation (Chapter 6): Discusses forms like Three Address Code, Polish notation, quadruples, and triples to represent source programs independently of the target machine.
Code Optimization (Chapter 8): Teaches techniques to make code more efficient, such as loop optimization, DAG representation of basic blocks, and global data-flow analysis.
Code Generation (Chapter 9): Addresses the final conversion into target machine code, focusing on register allocation and design issues for the target machine. Supplemental Concepts
Symbol Tables: Management of information about variables and scopes using data structures like hashing and trees.
Run-Time Environment: Methods for storage allocation, including static, stack (for block-structured languages), and heap allocation.
Error Handling: Detection and recovery techniques for lexical, syntactic, and semantic errors. Purchasing & Access
The book is published by Technical Publications, Pune. While physical copies and e-books are available on platforms like Amazon and Google Books, official free PDF versions are generally not legally provided by the publisher. Compiler Design , A. A. Puntambekar - Amazon.com
Book details * Language. English. * Publisher. TECHNICAL PUBLICATIONS. * Accessibility. Learn more. * Publication date. January 1, Amazon.com COMPILER DESIGN : A.A.PUNTAMBEKAR: Amazon.in: Books
Compiler Design Anuradha A. Puntambekar , published in its updated edition in Technical Publications
(ISBN: 978-93-5585-396-7), is designed specifically for undergraduate computer science and information technology programs. Rokomari.com Key Features of the 2021 Edition Compiler Design - Anuradha A. Puntambekar - Google Books
Compiler Design A.A. Puntambekar is a widely used academic resource that provides a structured, step-by-step introduction to compiler construction. While the specific "71 2021" string in your query likely refers to a specific PDF page or edition identifier from 2021, the book itself is consistently published by Technical Publications and remains a staple for computer science students. Key Content & Topics Covered
The book is organized into phases that follow the standard compilation process: Google Books Front-End Analysis : Detailed coverage of Lexical Analysis (tokens and regular expressions), Syntax Analysis
(top-down and bottom-up parsing techniques like LL(1) and LALR), and Semantic Analysis Google Books Back-End Synthesis : Includes Intermediate Code Generation (three-address code, syntax trees), Code Optimization techniques to increase efficiency, and Object Code Generation Supporting Structures : In-depth explanations of Symbol Tables Run-time Storage Management (stack and heap allocation), and Error Detection and recovery mechanisms. Practical Tools : Practical insights into using automatic generators like (lexical analyzer generator) and (yet another compiler compiler). Google Books Notable Features Structured for Exams
: The content is specifically designed to cater to university students (such as those following JNTU or Anna University syllabi) preparing for exams with clear, systematic layouts. Visual Learning : Features numerous diagrams, flowcharts, and algorithms to simplify complex theoretical concepts. Pustakkosh.com Scannable Content
: Reviewed by users as being "compact and concise," making it ideal for quick revision or last-minute study. Available Editions & Purchase Options
You can find various editions of the book, including recent reprints and university-specific versions: Compiler Design (General Edition) : Available at Pustakkosh for approximately ₹407. Principles of Compiler Design
: A conceptual approach available as a Kindle edition or paperback on Amazon India University Specific Versions
: Tailored editions for JNTU-H and other curricula are available through Technical Publications for a specific university syllabus or a comparison with other standard texts like the "Dragon Book"? Compiler Design - A. A. Puntambekar - Amazon.in
The book follows the standard architecture of compiler design. If you are studying from this book, you will likely cover the following modules (typical of a 6th-semester Computer Science course):
Why students prefer this book: It contains a large number of solved examples, university question papers, and simplified diagrams that make complex topics like LR Parsing easier to understand for exam preparation.
Page 71 in most editions falls in Chapter 3 or 4, depending on pagination.
We cannot reprint the PDF, but based on standard pagination patterns of Puntambekar’s books, page 71 usually belongs to:
Another common content: Pseudo-code of a recursive descent parser for a small expression grammar, with error handling pointers.
If you are searching for page 71, check which chapter your syllabus highlights – it’s 99% likely to be lexical analysis or top-down parsing.