Regular Expressions
Reference documents in Regular Expressions.
Documents in Regular Expressions
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Regular expressions are an essential and useful skill even outside of programming. They can serve not only as a handy tool for anyone whose work involves writing or data, but also act as a gateway into more interesting and complex kinds of programming.
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Regular expressions are an extremely powerful tool for manipulating text and data. They are now standard features in a wide range of languages and popular tools, including Perl, Python, Ruby, Java, VB.NET and C# (and any language using the .NET Framework), PHP, and MySQL.
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Regular expressions are patterns or templates that allow you to define a set of rules in a natural yet vague way, giving you the ability to match and validate text. Therefore, they have been implemented in nearly every modern programming language.
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When you're done with this book you will be able to read regex strings, understand what's going on with regex, learn when to use them, learn to write them, and learn how to write simple parsers to avoid abusing regex to process your strings.
