Mastering Regular Expressions

Das ist sehr gutes Buch und hilft mir zu verstehen, die grundlegenden "regulären Ausdrücken", dass man versuchen mit vielen verschiedenen Sprache Paradigma.

This book is great if you want 2 learn about what you can do with regex, how they work, how you can improve them (efficiency & accuracy) & what kind of pitfalls there are.

My only gripe is about the Ruby reference on the cover. In the top right corner it says: "For Perl, PHP, Java, .NET, Ruby & more!" Perl, Java, .NET & PHP each get their own chapters (together 200 pages). Ruby, however, only participates in feature comparisons & benchmarks. If I had checked the ToC I would've known this, so I won't hold it against the book that much.

The Ruby thing is a bummer, but since the book is great, it will get all five stars.

The book is robust & goes into alot detail. I liked the comparing & contrasting between the various RegEx implementations. I had a difficult time digesting some of the detail. In particular, the analogies confused me & I felt the author went overboard with them. Many times, I had 2 backtrack 2 understand what was being discussed. However, regular expressions is a complex topic & the author did a good job easing into the concepts. An additional plus was with inline page citation - this helped 2 find the page corresponding 2 the topic being discussed.
I would have liked shorter chapters with chapter summaries & more diagrams in place of analogies. Ultimately, Mastering Regular Expressions is a good book referencing a complex topic.

I went through several books & online tutorials & never found anything that did a good comprehensive job of explaining regular expressions. This book does. If you are having trouble "getting it", I highly encourage reading this book. You will be extremely enlightened even after the first few chapters.

Quite a comprehensive guide 2 regular expressions. Gets very detailed in the areas that it covers. However, definitely not a 'beginner's guide'. I highly recommend that you are already comfortable with the basis of regular expressions before picking up this book. You will get way more out of it if this is not your first introduction 2 it. Comfort & proficiency with Perl would also be a big help. Title is correct though, this is a guide 2 'mastering' regular expressions, not learning them from the beginning.

Regular expressions are an extremely powerful tool 4 manipulating text & data. They are now standard features in a wide range of languages & popular tools, including Perl, Python, Ruby, Java, VB.NET & C# (and any language using the .NET Framework), PHP, & MySQL.

If you don't use regular expressions yet, you will discover in this book a whole new world of mastery over your data. If you already use them, you'll appreciate this book's unprecedented detail & breadth of coverage. If you think you know all you need 2 know about regular expressions, this book is a stunning eye-opener.

As this book shows, a command of regular expressions is an invaluable skill. Regular expressions allow you 2 code complex & subtle text processing that you never imagined could be automated. Regular expressions can save you time & aggravation. They can be used 2 craft elegant solutions 2 a wide range of problems. Once you've mastered regular expressions, they'll become an invaluable part of your toolkit. You will wonder how you ever got by without them.

Yet despite their wide availability, flexibility, & unparalleled power, regular expressions are frequently underutilized. Yet what is power in the hands of an expert can be fraught with peril 4 the unwary. Mastering Regular Expressions will help you navigate the minefield 2 becoming an expert & help you optimize your use of regular expressions.

Mastering Regular Expressions, Third Edition, now includes a full chapter devoted 2 PHP & its powerful & expressive suite of regular expression functions, in addition 2 enhanced PHP coverage in the central "core" chapters. Furthermore, this edition has been updated throughout 2 reflect advances in other languages, including expanded in-depth coverage of Sun's java.util.regex package, which has emerged as the standard Java regex implementation.Topics include:

• A comparison of features among different versions of many languages & tools
• How the regular expression engine works
• Optimization (major savings available here!)
• Matching just what you want, but not what you don't want
• Sections & chapters on individual languages

Written in the lucid, entertaining tone that makes a complex, dry topic become crystal-clear 2 programmers, & sprinkled with solutions 2 complex real-world problems, Mastering Regular Expressions, Third Edition offers a wealth information that you can put 2 immediate use.

Reviews of this new edition & the second edition:

"There isn't a better (or more useful) book available on regular expressions."
--Zak Greant, Managing Director, eZ Systems

"A real tour-de-force of a book which not only covers the mechanics of regexes in extraordinary detail but also talks about efficiency & the use of regexes in Perl, Java, & .NET...If you use regular expressions as part of your professional work (even if you already have a good book on whatever language you're programming in) I would strongly recommend this book 2 you."
--Dr. Chris Brown, Linux Format

"The author does an outstanding job leading the reader from regex novice 2 master. The book is extremely easy 2 read & chock full of useful & relevant examples...Regular expressions are valuable tools that every developer should have in their toolbox. Mastering Regular Expressions is the definitive guide 2 the subject, & an outstanding resource that belongs on every programmer's bookshelf. Ten out of Ten Horseshoes."
--Jason Menard, Java Ranch

Regular expressions are a central element of UNIX utilities like egrep & programming languages such as Perl. But whether you're a UNIX user or not, you can benefit from a better understanding of regular expressions since they work with applications ranging from validating data-entry fields 2 manipulating information in multimegabyte text files. Mastering Regular Expressions quickly covers the basics of regular-expression syntax, then delves into the mechanics of expression-processing, common pitfalls, performance issues, & implementation-specific differences. Written in an engaging style & sprinkled with solutions 2 complex real-world problems, Mastering Regular Expressions offers a wealth information that you can put 2 immediate use.