powershell：如何从字符串中转义所有正则表达式字符 [英] powershell: how to escape all regex characters from a string

问题描述

我想知道在powershell中是否有更好的方法来转义正则表达式字符，我知道C＃具有Regex.Escape，但是我不确定powershell是否具有自己的方法...

I am wondering if there is a better way to escape regex characters in powershell, I know C# has Regex.Escape, but I'm not sure if powershell has its own method...

这是我目前正在做的事情：

This is what I am doing at the moment:

$escapedStr = $regexStr -replace "\+","\+" -replace "\[","\[" -replace "\]","\]" -replace "\(","\(" -replace "\)","\)"

推荐答案

PowerShell可以调用完全相同的方法：

PowerShell can call the exact same method:

[Regex]::Escape($regexStr)

但是您甚至可以只使用一个正则表达式替换来改善替换：

But you could even improve your replacement by using just a single regex replace:

$regexStr -replace '[[+*?()\\.]','\$&'

但是，我可能仍然错过了该字符类中的一些元字符，因此只需使用 [regex] :: Escape 方法。

However, I probably still missed a few metacharacters from that character class, so just use the [regex]::Escape method.

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