Regular expression

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Regular expressions are an essential tool for anyone working with text and data on a computer, combining symbols and text for creative and efficient programming solutions. Mastering these expressions is invaluable, but the extensive information can be overwhelming when quick answers are needed. The Regular Expression Pocket Reference serves as a concise, portable companion to more comprehensive texts, offering a complete overview of the syntax and semantics crucial for text-processing applications. This guide is perfect for beginners seeking an introduction and for advanced programmers needing a quick reference. It covers regular expression APIs for various programming languages, including C, Perl, PHP, Java, .NET, Python, vi, and POSIX libraries. O'Reilly's Pocket References are beloved by programmers for their well-organized format that delivers essential details efficiently. When faced with challenges that require swift solutions, this handy reference is the go-to resource, ensuring you have the necessary information at your fingertips to tackle any task involving regular expressions.