转义正则表达式中的括号 [英] Escaping Parentheses in Regex

问题描述

我有一个正则表达式，它在末尾有可选的锚点，例如

I have a regex which has optional anchors at the end e.g.

(\.|,|\/)

我正在尝试为此添加)"，但如果我将其转义

I am trying to add ")" to this but if I escape it

(/.|,|\/|\))

未找到，如果不转义，则将其视为表达式的一部分并失败，因为没有打开的括号.我怎样才能逃脱它以便它被视为一个字符并被发现?

it isn't found and if don't escape it is treated as part of the expression and fails since there is no open parens. How can I escape it so it is treated as a character and found?

推荐答案

如果要匹配一组字符中的一个，最好使用 字符类.在这样的类中，大多数转义规则都不适用.

If you want to match one of a set of character, it's best to use a character class. And within such a class, most escaping rules don't apply.

因此要匹配点、逗号、斜线或右括号，您可以使用

So to match a dot, comma, slash or closing parenthesis, you can use

[.,/)]

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