Welcome to RegExLib.com, the Internet's first Regular Expression Library. Currently we
have indexed 4149 expressions from
2818 contributors around the world.
We hope you'll find this site useful and come back whenever you
need help writing an expression,
you're looking for an expression for a particular task, or are ready to
contribute new expressions you’ve just figured out. Thanks!
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Mastering Regular Expressions, Second Edition
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Mastering Regular Expressions, Second Edition
Regular expressions are a central element of UNIX utilities like egrep and 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 to 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, and implementation-specific differences. Written in an engaging style and sprinkled with solutions to complex real-world problems, Mastering Regular Expressions offers a wealth information that you can put to immediate use.
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