正則表達式袖珍參考提供了一個正則表達式，模式匹配元字符，模式和結構的介紹，然后提供了完整的正則表達式
This concise and easy-to-use reference puts a very powerful tool for manipulating text and data right at your fingertips. Composed of a mixture of symbols and text, regular expressions can be an outlet for creativity, for brilliant programming, and for the elegant solution. Regular Expression Pocket Reference offers an introduction to regular expressions, pattern matching, metacharacters, modes and constructs, and then provides separate sections for each of the language APIs, with complete regex listings including:

Supported metacharacters for each language API
Regular expression classes and interfaces for Ruby, Java, .NET, and C#
Regular expression operators for Perl 5.8
Regular expression module objects and functions for Python
Pattern-matching functions for PHP and the vi editor
Pattern-matching methods and objects for JavaScript
Unicode Support for each of the languages