Take the guesswork out of using regular expressions. With more than 140 practical recipes, this cookbook provides everything you need to solve a wide range of real-world problems. Novices will learn basic skills and tools, and programmers and experienced users will find a wealth of detail. Each recipe provides samples you can use right away.This revised edition covers the regular expression flavors used by C#, Java, JavaScript, Perl, PHP, Python, Ruby, and VB.NET. You'll learn powerful new tricks, avoid flavor-specific gotchas, and save valuable time with this huge library of practical solutions.Learn regular expressions basics through a detailed tutorialUse code listings to implement regular expressions with your language of choiceUnderstand how regular expressions differ from language to languageHandle common user input with recipes for validation and formattingFind and manipulate words, special characters, and lines of textDetect integers, floating-point numbers, and other numerical formatsParse source code and process log filesUse regular expressions in URLs, paths, and IP addressesManipulate HTML, XML, and data exchange formatsDiscover little-known regular expression tricks and techniques