使用ruby输出yaml中折叠的文本块

Question

当我执行message.to_yaml时，我得到以下输出

mainText: "<h3 class=\"right_column\">Mark</h3> ... "

但我想要以下列格式输出

mainText: |
     <h3 class="right_column">Mark</h3>  
     ... 

如何强制ruby使用管道折叠多行字符串。

我试过

message.to_yaml(:UseFold => true, :UseBlock => true)

但它不起作用

由于

Answer 1

irb(main):011:0> puts "Hi!\nIf your string has newlines...\nfolding is by default".to_yaml
--- |-
Hi!
If your string has newlines...
folding is by default