Groovy：我如何在字符串中包含反斜杠而不逃脱？ [英] Groovy: How can I include backslashes inside a string without escaping?

问题描述

 C：\dev\ 
我想在我的groovy程序中使用下面的字符串字面值，而不必转义反斜杠。用户名

以下是我到目前为止所尝试的内容：

行情）& GStrings（双引号）

$ $ $ $ $ $ $ def aString ='C：\dev\username'
def aGString =C： \dev\username

• 不起作用，因为\具有特殊含义并且用于转义其他字符


• 我最终不得不使用另一个\

 def s ='C：\\dev\\username'

Slashy String& Dollar Slashy String

适用于某些字符串，如下所示：

 
 def slashy = / C：\windows\system32/ 
 def dollarSlashy = $ / C：\windows\system32 / $ 

但它将\u解释为具有特殊含义（以下不起作用）：

 def s1 = / C：\dev\username / 
 def s2 = $ / C：\dev\username / $ 

• Groovy：未找到四位数十六进制字符代码

解决方案

哇，另一个将Windows文件路径放入斜杠字符串的问题。很好的接收。我之前遇到的问题是在路径中包含尾部反斜杠，例如 / C：\路径\ / ，导致意外的char：0xFFFF 错误。

无论如何，为了答案的缘故，鉴于Windows路径不区分大小写，为什么不一次性利用它？

  def s = / C：\DEV\USERNAME / 
  

\u unicode字符转义序列是区分大小写的。

I want to use the following string literal inside my groovy program without having to escape the backslashes:

C:\dev\username

Here is what I have tried so far:

String (Single Quotes) & GStrings (Double Quotes)

def aString = 'C:\dev\username'
def aGString = "C:\dev\username"

• Doesn't work because \ has special meaning and is used to escape other characters
• I end up having to escape \ with another \

def s = 'C:\\dev\\username'

Slashy String & Dollar Slashy String

Works for some strings, like the following

def slashy = /C:\windows\system32/
def dollarSlashy = $/C:\windows\system32/$

But it interprets \u as having special meaning (the following don't work):

def s1 = /C:\dev\username/
def s2 = $/C:\dev\username/$

• Groovy:Did not find four digit hex character code

解决方案

Wow, another gotcha with putting Windows files paths in slashy strings. Nice catch. The gotcha I've encountered before was including a trailing backslash on the path, e.g. /C:\path\/, which results in an unexpected char: 0xFFFF error.

Anyways, for the sake of an answer, given that Windows paths are case insensitive, why not exploit it for once?

def s = /C:\DEV\USERNAME/

The \u unicode character escape sequence is case sensitive.

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