Mastering Regular Expressions - Tapa blanda

Regular expressions are an extremely powerful tool for manipulating text and data.They have spread like wildfire in recent years, now offered as standard features inPerl, Java, VB.NET and C# (and any language using the .NET Framework), PHP, Python,Ruby, Tcl, MySQL, awk, Emacs, and many other popular tools and languages. Ifyou don't use regular expressions yet, you will discover in this book a whole newworld of mastery over your data. If you already use them, you'll appreciate thisbook's unprecedented detail and breadth of coverage. If you think you know all youneed to know about regular expressions, this book is a stunning eye-opener. In spitetheir wide availability, flexibility, and unparalleled power, regular expressions arefrequently underutilized. Regular expressions allow you to code complex and subtletext processing that you never imagined could be automated. Regular expressions cansave you time and aggravation. They can be used to craft elegant solutions to a widerange of problems. A command of regular expressions is an invaluable skill. Yet whatis power in the hands of an expert can be fraught with peril for the unwary.

Mastering Regular Expressions will help you navigate the minefield to becomingan expert. Once you've mastered regular expressions, they'll become an invaluablepart of your toolkit. You will wonder how you ever got by without them. MasteringRegular Expressions, Second Edition has been thoroughly updated to include allthe new features of Perl 5.8, as well as several other languages, including Java,VB.NET, C#, Python, JavaScript, Tcl, and Ruby. Written in the lucid, entertainingtone that made a complex, dry topic crystal-clear to thousands of programmers, andsprinkled with solutions to complex real-world problems, Mastering RegularExpressions offers a wealth information that you can put to immediate use. Topicsinclude:

• A comparison of features among different versions of many languagesand 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 and chapters on individual languages

Jeffrey Friedl was raised in the countryside of Rootstown, Ohio, and had aspirations of being an astronomer until one day noticing a TRS-80 Model I sitting unused in the corner of the chem lab (bristling with a full 16k RAM, no less). He eventually began using UNIX (and regular expressions) in 1980. With degrees in computer science from Kent (B.S.) and the University of New Hampshire (M.S.), he is now an engineer with Omron Corporation, Kyoto, Japan. He lives in Nagaokakyou-city with Tubby, his long-time friend and Teddy Bear, in a tiny apartment designed for a (Japanese) family of three. Jeffrey applies his regular-expression know-how to make the world a safer place for those not bilingual in English and Japanese. He is active in a variety of language-related projects, both in print and on the Web. When faced with the daunting task of filling his copious free time, Jeffrey enjoys riding through the mountainous countryside of Japan on his Honda CB-1. At the age of 30, he finally decided to put his 6'4" height to some use, and joined the Omron company basketball team. While finalizing the manuscript for Mastering Regular Expressions., he took time out to appear in his first game, scoring five points in nine minutes of play, which he feels is pretty darn good for a geek. When visiting his family in The States, Jeffrey enjoys dancing a two-step with his mom, binking old coins with his dad, and playing schoffkopf with his brothers and sisters.