If you're a programmer new to regular expressions, this easy-to-follow guide is a great place to start. You'll learn the fundamentals step-by-step with the help of numerous examples, discovering first-hand how to match, extract, and transform text by matching specific words, characters, and patterns. Regular expressions are an essential part of a programmer's toolkit, available in various Unix utlilities as well as programming languages such as Perl, Java, JavaScript, and C#. When you've finished this book, you'll be familiar with the most commonly used syntax in regular expressions, and you'll understand how using them will save you considerable time.

如果您是一名对正则表达式不熟悉的程序员，那么这本简单易懂的指南是一个很好的起点。您将通过大量示例一步一步地学习基础知识，发现如何通过匹配特定的单词、字符和模式来匹配、提取和转换文本的第一手资料。正则表达式是程序员工具包的重要组成部分，可用于各种Unix应用程序以及Perl、Java、JavaScript和C#等编程语言。读完本书后，您将熟悉正则表达式中最常用的语法，并了解如何使用它们来节省大量时间。