《正则表达式配方》详解:8种编程语言实践教程

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《正则表达式Cookbook》是一本由Jan Goyvaerts和Steven Levithan合著的专业IT技术书籍,隶属于O'Reilly出版社。该书主要针对程序员和开发者提供了一个详尽的解决方案集,共有超过100个实用的“菜谱”,涵盖了在处理文本数据和格式化操作中广泛应用的正则表达式技术。正则表达式是编程和脚本编写中的重要工具,它允许用户有效地解析、验证和格式化各种输入,包括语言文字、行、特殊字符和数值。 书中特别关注了8种流行的编程语言,分别是C/C++、Java、JavaScript、Perl、PHP、Python、Ruby和VB.NET,确保读者能够理解和掌握这些语言中正则表达式的使用方法。作者通过深入浅出的教程,帮助读者理解正则表达式的基础概念,并指导他们如何解决实际工作中遇到的问题,如输入验证、数据提取、URL处理、HTML解析、以及数据交换等高级应用中的细微之处。 阅读这本书,读者将收获以下技能和知识: 1. 入门指南:通过简明扼要的教程,快速掌握正则表达式的基础知识。 2. 跨语言应用:学会在不同编程和脚本环境中高效运用正则表达式,实现代码的通用性和兼容性。 3. 实用技巧:掌握如何正确地验证和格式化不同类型的数据输入,提高程序的稳定性和用户体验。 4. 特定领域应用:了解如何在URL、电子邮件地址、HTML标记和数据交换格式中巧妙运用正则表达式。 5. 进阶学习:书中还包含了对更复杂正则表达式特性的深入剖析,帮助读者避免性能问题、错误匹配和棘手的bug。 《正则表达式Cookbook》是一本实用性极强的参考书籍,无论你是正准备踏入正则表达式世界的新手,还是希望提升现有技能的老手,都将从中受益匪浅。通过跟随书中的步骤和实例,读者可以系统地提升在IT项目开发中的文本处理能力。
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Over the past decade, regular expressions have experienced a remarkable rise in pop- ularity. Today, all the popular programming languages include a powerful regular ex- pression library, or even have regular expression support built right into the language. Many developers have taken advantage of these regular expression features to provide the users of their applications the ability to search or filter through their data using a regular expression. Regular expressions are everywhere. Many books have been published to ride the wave of regular expression adoption. Most do a good job of explaining the regular expression syntax along with some examples and a reference. But there aren’t any books that present solutions based on regular expressions to a wide range of real-world practical problems dealing with text on a computer and in a range of Internet applications. We, Steve and Jan, decided to fill that need with this book. We particularly wanted to show how you can use regular expressions in situations where people with limited with regular expression experience would say it can’t be done, or where software purists would say a regular expression isn’t the right tool for the job. Because regular expressions are everywhere these days, they are often a readily available tool that can be used by end users, without the need to involve a team of programmers. Even programmers can often save time by using a few regular expressions for information retrieval and alteration tasks that would take hours or days to code in procedural code, or that would otherwise require a third-party library that needs prior review and management approval.