Java RegEx:匹配任何非单词和非数字字符,除了

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时间:2020-08-11 23:41:21  来源:igfitidea点击:

RegEx: match any non-word and non-digit character except

javaregex

提问by TomatoMato

To match any non-word and non-digit character (special characters) I use this: [\\W\\D]. What should I add if I want to also ignore some concrete characters? Let's say, underscore.

为了匹配任何非单词和非数字字符(特殊字符),我使用这个:[\\W\\D]. 如果我还想忽略一些具体字符,我应该添加什么?比方说,下划线。

采纳答案by Rohit Jain

First of all, you must know that \Wis equivalent to [^a-zA-Z0-9_]. So, you can change your current regex to:

首先,你必须知道这\W相当于[^a-zA-Z0-9_]. 因此,您可以将当前的正则表达式更改为:

[\W]

This will automatically take care of \D.

这将自动处理\D

Now, if you want to ignore some other character, say &(underscore is already exluded in \W), you can use negated character class:

现在,如果您想忽略其他一些字符,例如&(下划线已被排除在 中\W),您可以使用否定字符类:

[^\w&]