你能给我在C ++中奇数单行注释的例子吗？ [英] Can you give me examples of odd single line comments in C++?

问题描述

我写了一个方法来从C ++源文件中删除单行注释：

I wrote a method to remove single line comments from a C++ source file:

def stripRegularComments(text)
 {
  def builder = new StringBuilder()
  text.eachLine {
   def singleCommentPos = it.indexOf("//")
   def process = true
   if(singleCommentPos > -1)
   {
    def counter = 0
    it.eachWithIndex 
    { obj,i ->
     if((obj == '\'') || (obj == '"'))
      counter++
     if(i == singleCommentPos)
     {
      process = ((counter % 2) == 1)
      if(!process)
       return
     } 
    }

    if(!process)
    {
     def line = it.substring(0,singleCommentPos)
     builder << line << "\n"
    }
    else
    {
     builder << it << "\n" 
    }
   }
   else
   {
    builder << it << "\n"
   }
  }
  return builder.toString()
 }

我测试它：

And I tested it with :

println a.stripRegularComments("""
this is a test inside double quotes "//inside double quotes"
this is a test inside single quotes '//inside single quotes'
two// a comment?//other
single //comment
""")

生成以下输出：

It produces this output:

this is a test inside double quotes "//inside double quotes"
this is a test inside single quotes '//inside single quotes'
two
single

有没有一些我失踪的情况？

Are there some cases I'm missing?

推荐答案

由三字母和线延续形成。我个人最喜欢的是：

The fun ones are formed by trigraphs and line continuations. My personal favorite is:

/??/
* this is a comment *??/
/

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