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 tutorial; Use code listings to implement regular expressions with your language of choice; Understand how regular expressions differ from language to language; Handle common user input with recipes for validation and formatting; Find and manipulate words, special characters, and lines of text; Detect integers, floating-point numbers, and other numerical formats; Parse source code and process log files; Use regular expressions in URLs, paths, and IP addresses; Manipulate HTML, XML, and data exchange formats; Discover little-known regular expression tricks and techniques. - Publisher.