快速掌握编程技巧：正则表达式代码参考

需积分: 10 178 浏览量更新于2024-07-18 收藏 1.96MB PDF 举报

"《正则表达式快速语法参考》是一本针对编程中重要技术——正则表达式的精炼代码和语法指南。作者Zsolt Nagy编写的这本书旨在为开发者提供一个结构清晰、易于查阅的参考资料，它涵盖了多种编程语言，如JavaScript、Python、Java和C#，帮助读者掌握如何使用正则表达式进行输入验证、字符串分割、解析数据以及模式匹配。书中特色鲜明，以简短且聚焦的代码示例呈现，避免了冗长的历史背景或故事叙述，注重实用性和可访问性。内容包括但不限于：验证用户输入的有效性，处理搜索与替换操作，以及在后台编码中过滤和处理数据。对于希望提高编程技能特别是处理文本数据的程序员来说，这是一本不可或缺的工具书。该书的ISBN-13平装版为978-1-4842-3875-2，电子版为978-1-4842-3876-9，且已获得版权保护，由Springer International Publishing出版，并获得了美国国会图书馆的控制号2018953563。所有内容受版权法保护，禁止任何形式的未经许可复制、传播或改编，包括但不限于电子化、计算机软件利用等。书中还可能包含商标名、标志和图片，这些使用遵循编辑性使用原则，不需每次出现都标注商标符号。《正则表达式快速语法参考》是为高效学习和实际工作中处理文本处理任务的专业程序员量身打造的权威指南。"

By definition, regexes specify a search pattern. Although this is a true

statement, it is easy to misinterpret it because you are not specifying

a declarative structure. In the real world, you specify a sequence of

instructions acting like a function in an imperative programming language.

You use commands and loops, you pass arguments to your regex, you may

pass arguments around inside your regex, you return a result, and you may

even cause side effects.

Learning regular expressions as an imperative language comes with a

big advantage. If you have dealt with at least one programming language in

your life, chances are, you know almost everything to understand regular

expressions. You are just not yet proficient in the regex syntax. As soon as you

familiarize yourself with this weird language, everything will fall into place.

The Language Family ofRegular

Expressions

When I talk about regular expressions, in practice I mean a family of

different dialects. Similarly to genetics, regular expressions keep evolving,

and new mutations surface on a regular basis. Although the principles stay

the same in most languages, every single dialect brings something different.

Standardization of regular expressions began with BRE (Basic Regular

Expressions) inside the POSIX standard 1003.2. This standard is used in

the editors ed and sed, as well as in the grep command.

The first major evolution of regular expressions came with the ERE

(Extended Regular Expressions) syntax. This syntax is used in, for example,

egrep and notepad++.

For completeness, I will also mention the SRE (Simple Regular

Expressions) dialect, which has been deprecated in favor of BRE.

Some editors such as EMACS and VIM have their own dialects. In the

case of VIM, the dialect can be customized with flags, and this technique

provides even more variations. These dialects are built on top of ERE.

CHAPTER 1 AN INTRODUCTION TO REGULAR EXPRESSIONS

剩余155页未读，继续阅读

mermaid852

粉丝: 1
资源: 2

快速掌握编程技巧：正则表达式代码参考

Regex Quick Syntax Reference.zip

Regex Quick Syntax Reference (2018)_Quick_regexp_regex_reference

正则表达式资料全集 Regular Expression Syntax Reference

undefined reference boost regex

打成jar包，报错SyntaxError: No language for id regex found.

error: unknown type name ‘regex_t’ regex_t regex;

CAPL strstr_regex

basic_regex

ModuleNotFoundError: No module named 'regex._regex'

C语言中regex_error,为什么这个C 11 std :: regex示例抛出一个regex_error异常？

最新资源