Regex Quick Syntax Reference
Apress (Verlag)
978-1-4842-3875-2 (ISBN)
The Regex Quick Syntax Reference features short, focused code examples that show you how to use regular expressions to validate user input, split strings, parse input, and match patterns. Utilizing regular expressions to deal with search/replace and filtering data for backend coding is also covered.
You won’t find any bloated samples, drawn out history lessons, or witty stories in this book. What you will find is a language reference that is concise and highly accessible. The book is packed with useful information and is a must-have for any programmer.
What You Will Learn
Formulate an expression
Work with arbitrary char classes, disjunctions, and operator precedence
Execute regular expressions and visualize using finite state machines
Deal with modifiers, including greedy and lazy loops
Handle substring extraction from regex using Perl 6 capture groups, capture substrings, and reuse substrings
Who This Book Is For
If you have dealt with at least one programming language, chances are you know enough to understand regular expressions, and the examples in this book will help you develop proficiency.
Zsolt Nagy is a web development team lead, mentor and software engineer living in Berlin, Germany. He programs with JavaScript, Perl and other open source web technologies. Zsolt is also experienced in using and teaching regular expressions using these technologies. He writes a blog about lessons learned while solving complex problems, experimenting with technology and teaching other people on how to improve their skills. As a software engineer, he continuously challenges himself to stick to the highest possible standards.
1. An Introduction to Regular Expressions.- 2. Regex Syntax 101.- 3. Executing Regular Expressions.- 4. Visualizing Regex Execution using Finite State Machines.- 5. Repeat modifiers.- 6. Character Sets and Character Classes.- 7. Substring Extraction from Regular Expressions.- 8. Lookahead and Lookbehind.- 9. Maintaining Regular Expressions.- 10. Optimizing regular expressions.- 11. Parsing HTML Code and URL Query Strings with Regular Expressions.- Afterword: This is not the end, but the beginning.
| Erscheinungsdatum | 18.09.2018 |
|---|---|
| Zusatzinfo | 20 Illustrations, black and white; XI, 153 p. 20 illus. |
| Verlagsort | Berkley |
| Sprache | englisch |
| Maße | 155 x 235 mm |
| Themenwelt | Mathematik / Informatik ► Informatik ► Programmiersprachen / -werkzeuge |
| Mathematik / Informatik ► Informatik ► Software Entwicklung | |
| Informatik ► Theorie / Studium ► Compilerbau | |
| Mathematik / Informatik ► Informatik ► Web / Internet | |
| Schlagworte | C# • Code • C Sharp • Java • JavaScript • Perl • Perl 6 • programming • Python • Quick • Reference • regex • Regular Expressions • source code • Syntax • Text |
| ISBN-10 | 1-4842-3875-3 / 1484238753 |
| ISBN-13 | 978-1-4842-3875-2 / 9781484238752 |
| Zustand | Neuware |
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