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Build Your Own Regular Expression Engines: Backtracking, NFA, DFA

build-your-own.org

Comprehensive guide to building custom regular expression engines, covering backtracking, NFA, and DFA approaches. Learn to parse regex with Python.

Technical TutorialsPythonRegular Expressions

Introduction

A comprehensive guide to building custom regular expression engines, covering backtracking, NFA, and DFA approaches.

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Highlights

  • Learn to parse regular expressions with about 100 lines of Python
  • Implement regex execution via backtracking with around 50 lines of code
  • Explore intermediate-level concepts by coding an NFA with approximately 100 lines of Python
  • Dive into advanced topics by implementing a Deterministic Finite Automaton (DFA)

Recommendation

This course is suitable for developers who want to gain a deeper understanding of regular expressions by building their own regex engines. It covers a range of complexity levels, from beginner to advanced, making it accessible to learners with varying skill levels.

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