如何格式化带有换行符的多行 R 消息？

Question

基于这个优秀的问题和回复，我了解到您可以使用

message(strwrap(<some message>))

使您编写的R包中的消息在IDE中很好地流动。但是，我如何才能超越重排，变成某种格式化的消息呢？

那里接受的答案表明

message(strwrap(prefix = " ", initial = "", 
  "If you got to this point in the code, it means 
the matrix was empty. Calculation continues but you should consider
 re-evaluating an earlier step in the process"))

这解决了OP对在换行符处保留空格的担忧。但是，如果我希望“继续计算”实际上开始一个新行，也许中间有一个硬返回，该怎么办？

Answer 1

如评论中所示，添加

initial = "\n"

表示新句子另起一行：

message(strwrap(prefix = "\n", initial = "", 
                "If you got to this point in the code, it means 
the matrix was empty. Calculation continues but you should consider
 re-evaluating an earlier step in the process"))

输出：

If you got to this point in the code, it means the matrix was empty.
Calculation continues but you should consider re-evaluating an earlier step in
the process

要添加硬返回，一种选择是添加两个换行符“ ") 在消息字符串中：

message(strwrap(prefix = "\n", initial = "", 
                "If you got to this point in the code, it means 
the matrix was empty.\n\nCalculation continues but you should consider
 re-evaluating an earlier step in the process"))

输出：

If you got to this point in the code, it means the matrix was empty.

Calculation continues but you should consider re-evaluating an earlier step in
the process