美元符号后的非法字符串身体字符 [英] illegal string body character after dollar sign

问题描述

如果我定义一个groovy变量

pre $ def x =anish $


它会抛出错误，修正是

  def x =anish \ $
  

除了$之外什么是黑名单字符需要反斜杠，是否有Groovy引用列出了保留字符。大多数语言规范都提到了这些细节，但我没有看到Groovy语言 spec （很多TODO评论）。

解决方案

只需使用单引号：

  def x ='anish $'
  

如果这是不可能的，唯一的这会导致你的问题是 $ ，因为这是 GString 使用的模板字符（请参阅GString部分<一个href =http://groovy.codehaus.org/Strings+and+GString =noreferrer>在这个页面上 - 大约下降一半）

显然，反斜杠字符也需要转义，即：

  def x ='anish \\ '
  

if i define a groovy variable

def x = "anish$"

it will throw me error, the fix is

def x = "anish\$"

apart form "$" what are the blacklist characters that needs to be backslash,Is there a Groovy reference that lists the reserved characters. Most "language specifications" mention these details, but I don’t see it in the Groovy language spec (many "TODO" comments).

解决方案

Just use single quotes:

def x = 'anish$'

If this isn't possible, the only thing that's going to cause you problems is $, as that is the templating char used by GString (see the GString section on this page -- about half way down)

Obviously, the backslash char needs escaping as well, ie:

def x = 'anish\\'

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