Regular Expression Pocket Reference

Regular Expression Pocket Reference is a technical guide that details regular expression implementations across multiple programming languages and tools. The book covers regex functionality in Perl, PHP, .NET, Java, Python, Ruby, and other common environments. The reference explains syntax, metacharacters, pattern matching, and usage patterns specific to each platform. Clear examples demonstrate how to construct expressions for tasks like text validation, search and replace operations, and data extraction. The book maintains a focus on practical application while addressing advanced concepts like lookarounds, backreferences, and atomic grouping. The compact format allows developers to quickly locate platform-specific information and syntax requirements. This work serves as both a learning tool and a reference manual, bridging the gaps between different regex flavors and helping programmers adapt patterns across languages. Its systematic approach to documenting regex variations has made it a standard technical resource in the programming community.

Readers cite this book's portability and quick-reference format as its main strength for looking up regex syntax during coding. Many found the examples clear and appreciated the coverage of regex variations across different programming languages. Likes: - Compact size fits in laptop bags - Clear examples showing regex patterns - Language-specific reference tables - Good organization for finding info quickly Dislikes: - Too brief on complex patterns - Some readers wanted more in-depth explanations - Print too small for some - Not enough practice exercises Ratings: Goodreads: 3.9/5 (185 ratings) Amazon: 4.1/5 (89 ratings) One reader noted: "Perfect for double-checking syntax during development but not ideal for learning regex from scratch." Another mentioned: "The multi-language coverage saves me from googling specific implementations." Common feedback suggests this works better as a companion to more comprehensive regex books rather than a standalone learning resource.

Mastering Regular Expressions by Jeffrey Friedl This comprehensive guide delves deeper into regex concepts, including extensive coverage of different regex engines and optimization techniques.

sed & awk by Dale Dougherty, Arnold Robbins The text bridges regular expressions with command-line text processing through practical examples and real-world applications.

Programming with Regular Expressions by Michael Fitzgerald This resource explores regex implementation across multiple programming languages including Perl, Python, JavaScript, and Ruby.

Text Processing in Python by David Mertz The book connects regular expressions to broader text manipulation tasks through Python-specific examples and pattern-matching solutions.

Regular Expressions Cookbook by Jan Goyvaerts, Steven Levithan This collection presents regex solutions to common text processing problems across programming languages and platforms.

🔍 Jeffrey Friedl spent years living in Japan while working for Yahoo!, where he utilized regular expressions extensively in their search engine technology. 📚 The book covers regex implementations across multiple programming languages, including Perl, PHP, .NET, Java, Python, and Ruby, making it a versatile reference for developers. ⚡ Regular expressions originated in 1956 with mathematician Stephen Cole Kleene, who developed them as a way to describe regular languages in automata theory. 💻 The first widespread use of regular expressions in computing came through the Unix text processing utilities ed and grep, created by Ken Thompson in 1968. 🎯 The "Pocket Reference" format was specifically designed by O'Reilly Media to provide quick, essential information in a compact form that could literally fit in a programmer's pocket while coding.