Lecture 3B - Lexical Analyzer Implementation & Practice Questions | Tokenization in Compiler Design

Crack GATE Computer Science or GATE DA Exam with the Best Course. ➤ Join "GO Classes #GateCSE Complete Course": https://www.goclasses.in/courses/GATE-CSE-Complete-Course ➤ Join "GATE CSE+DA Combined Course": https://www.goclasses.in/courses/GATE-CSE--DA-Complete-Course-Combo ➤ Join "GO Classes #GateDA Complete Course": https://www.goclasses.in/courses/GATE-DA-Course ➤ TEST Series for GATE CSE: https://www.goclasses.in/s/store/courses/Tests%20&%20Quizzes ➤ Download GO Classes Android APP: https://play.google.com/store/apps/details?id=com.goclasses.courses ➤ GO Classes GATE DA YouTube Channel: https://www.youtube.com/@GOClassesforGATEDA Longest Match ( Maximal Munch ) rule for Tokenization in Lexical Analysis phase of Compiler: 🔹A Challenge in Scanning: ● When there are multiple ways we could scan the input, how do we know which one to pick? 🔹Solution: Longest Match (Maximal Munch): We should find the longest match accepted by the lexer. i.e. Always match the longest possible prefix of the remaining text. For example, treat ifif as a variable, not two keywords. #CompilerDesign ---------------------------------------------------- #GoClasses Website : https://www.goclasses.in/ #GoClasses ALL Links : https://linktr.ee/goclasses ---------------------------------------------------- ➤ Join GO Classes Telegram Group for GATE CS/DA Doubt Discussions: 1. https://t.me/GoClasses_CSE 2. https://t.me/GATECSE_Goclasses ---------------------------------------------------- ➤ Watch Complete Discrete Mathematics and Complete Engineering Mathematics Courses on GO Classes( FREE for ALL learners): https://www.goclasses.in/s/store/courses/FREE Complete #DiscreteMathematics Course(FREE) Link : https://www.goclasses.in/courses/Discrete-Mathematics-Course Complete #EngineeringMathematics Course(FREE) Link : https://www.goclasses.in/courses/Engineering-Mathematics ➤ Download GATEOverflow GATE Previous Years Questions(GATE CSE PYQs) Books here (FREE): https://github.com/GATEOverflow/GO-PDFs/releases/tag/gatecse-2025 ---------------------------------------------------- Feel free to Contact Us for any query. ➤ GO Classes Contact : (+91)63025 36274 GO Classes Mail ID : contact@goclasses.in #gate2026 #goclasses #computerscience #gateda #gatecs #computer_science #gatecse #gateexam #gateprep #gatecoaching #gate #goclass #gatetoppers #gatepreparation