Kotlin：多行字符串中的行继续？

Question

val myQuestion = """
I am creating a multiline string containing paragraphs of text.  The text will wrap when put into a TextView.  

But as you can see, when defining the text in the editor, if I want to avoid newlines mid-paragraph, I need to write really long lines that require a lot of horizontal scrolling.

Is there some way that I can have line breaks in the editor that don't appear in the actual value of the string?
"""

Answer 1

受到如何通过执行

$

在多行字符串中添加

${"$"}

（否则无法做到）的启发，我想到了这种在多行字符串文字中添加换行符的方法，而不是在字符串中添加换行符价值本身。

val myQuestion = """
    I am creating a multiline string containing paragraphs of text.  ${""
    }The text will wrap when put into a TextView.  

    But as you can see, when defining the text in the editor, ${""
    }if I want to avoid newlines mid-paragraph, I need to write ${""
    }really long lines that require a lot of horizontal scrolling.

    Is there some way that I can have line breaks in the editor ${""
    }that don't appear in the actual value of the string?
""".trimIndent()

（缩进和

trimIndent

只是为了让它看起来漂亮。它们不是必需的。）

基本上，我正在利用这样一个事实：您可以在

${ ... }

中放置任意空格，那么在那里放置换行符怎么样？不过

${ ... }

中仍然必须有一个表达式，因此您必须编写

""

将 nothing 附加到字符串中。

Answer 2

另一种方法是将 single-newline 视为“仅编辑器”换行符，该换行符将被删除。 如果您确实想要一个单换行符，请放置一个双换行符。 如果你想要双倍，就放三倍，依此类推：

val myQuestion = """
    I am creating a multiline string containing paragraphs of text.  
    The text will wrap when put into a TextView.  


    But as you can see, when defining the text in the editor, 
    if I want to avoid newlines mid-paragraph, I need to write 
    really long lines that require a lot of horizontal scrolling.


    Is there some way that I can have line breaks in the editor 
    that don't appear in the actual value of the string?
""".trimIndent().replace(Regex("(\n*)\n"), "$1")

这类似于 Markdown 的方法 - 它忽略单独的换行符（除非前一行以 2 个或更多空格结尾 - 我觉得这很令人困惑）。