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Regular Expressions Machinery: The Illustrated Guide
Get a Grip on the Regex Machinery
To effectively use regular expressions, you need to understand how the machinery works under the hood. It’s about taking control of the search process, controlling how the pattern is matched, and thus getting both faster and more accurate results.
In this illustrated guide, you gain precisely that understanding.
You can even get started without any prior knowledge of regular expressions. Before you know it, advanced tools like reluctant, lookbehind and nondeterministic finite automata will be at your fingertips as you write efficient and elegant regexes with ease.
About This Book
This book is written for those who want to deeply understand regular expressions. Maybe you’ve come across them in programming languages or tools, but never really understood how they work under the hood. The book presents complex concepts in a simple and visual way, with clear examples and practical applications. Whether you are a programmer, data analyst, or just want to get better at text processing, this book will take your knowledge to the next level.
The goal of the book is to give you a deep understanding of regular expressions so that you can use them with confidence and efficiency in your work. We begin by looking at the theoretical basis of regular finite automata. Then, we go through the only two operations and the only function needed to create regular expressions. We also thoroughly explore all basic and advanced features of modern regular expressions, and some of the most common pitfalls. Finally, we examine the concept of test-driven development (TDD) and how you can leverage it to write regexes that are correct and easy to maintain in your production code.
What You Need
If you want to test the regexes in this book, all you need is a web browser. There are many free regex REPLs (Read-Eval-Print Loops) available online. These are interactive tools that allow you to enter a regex and some text, then see the results of the regex matching against the text. If you prefer to test the examples on your own computer, installing Ruby is recommended. However, it is important to know that you do not need any Ruby knowledge to run the examples.
About the Author
Staffan Nöteberg is a bestselling author passionate about helping people become more efficient and focused. He is the author of these popular
Pomodoro Technique The Easy Way to Do More in Less How to Focus Your Mind and Be More ProductiveGuiding Star A New Approach to Setting and Achieving GoalsWith a background in software development and an interest in productivity, Staffan combines his expertise with an ability to explain complex topics in an easy-to-understand way.
To effectively use regular expressions, you need to understand how the machinery works under the hood. It’s about taking control of the search process, controlling how the pattern is matched, and thus getting both faster and more accurate results.
In this illustrated guide, you gain precisely that understanding.
You can even get started without any prior knowledge of regular expressions. Before you know it, advanced tools like reluctant, lookbehind and nondeterministic finite automata will be at your fingertips as you write efficient and elegant regexes with ease.
About This Book
This book is written for those who want to deeply understand regular expressions. Maybe you’ve come across them in programming languages or tools, but never really understood how they work under the hood. The book presents complex concepts in a simple and visual way, with clear examples and practical applications. Whether you are a programmer, data analyst, or just want to get better at text processing, this book will take your knowledge to the next level.
The goal of the book is to give you a deep understanding of regular expressions so that you can use them with confidence and efficiency in your work. We begin by looking at the theoretical basis of regular finite automata. Then, we go through the only two operations and the only function needed to create regular expressions. We also thoroughly explore all basic and advanced features of modern regular expressions, and some of the most common pitfalls. Finally, we examine the concept of test-driven development (TDD) and how you can leverage it to write regexes that are correct and easy to maintain in your production code.
What You Need
If you want to test the regexes in this book, all you need is a web browser. There are many free regex REPLs (Read-Eval-Print Loops) available online. These are interactive tools that allow you to enter a regex and some text, then see the results of the regex matching against the text. If you prefer to test the examples on your own computer, installing Ruby is recommended. However, it is important to know that you do not need any Ruby knowledge to run the examples.
About the Author
Staffan Nöteberg is a bestselling author passionate about helping people become more efficient and focused. He is the author of these popular
Pomodoro Technique The Easy Way to Do More in Less How to Focus Your Mind and Be More ProductiveGuiding Star A New Approach to Setting and Achieving GoalsWith a background in software development and an interest in productivity, Staffan combines his expertise with an ability to explain complex topics in an easy-to-understand way.
189 pages, Kindle Edition
Published February 3, 2025
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