需要在正则表达式中转义的所有特殊字符的列表 [英] List of all special characters that need to be escaped in a regex

问题描述

我正在尝试创建一个应用程序，该应用程序将消息模板与用户尝试发送的消息相匹配.我正在使用 Java 正则表达式来匹配消息.模板/消息可能包含特殊字符.

我如何获得需要转义的特殊字符的完整列表，以便我的正则表达式在最大可能的情况下工作和匹配?

是否有通用的解决方案来转义 Java 正则表达式中的所有特殊字符?

解决方案

可以看Pattern类的javadoc:http://docs.oracle.com/javase/8/docs/api/java/util/regex/Pattern.html>

如果您想要常规字符而不是特殊含义，则需要对此处列出的任何字符进行转义.

作为一个可能更简单的解决方案，您可以将模板放在 Q 和 E 之间 - 它们之间的所有内容都被视为已转义.

I am trying to create an application that matches a message template with a message that a user is trying to send. I am using Java regex for matching the message. The template/message may contain special characters.

How would I get the complete list of special characters that need to be escaped in order for my regex to work and match in the maximum possible cases?

Is there a universal solution for escaping all special characters in Java regex?

解决方案

You can look at the javadoc of the Pattern class: http://docs.oracle.com/javase/8/docs/api/java/util/regex/Pattern.html

You need to escape any char listed there if you want the regular char and not the special meaning.

As a maybe simpler solution, you can put the template between Q and E - everything between them is considered as escaped.

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