Preserve newlines of sequence indicator (-) when YAML.Document.toString()?

[kuanyui]

I need to use const doc = YAML.parseDocument() to parse + modify lots of .yaml files, and they have lots of sequence looks like this:

# This is comments
characters:
  -
    id: 0
    name: "Ib"
    age: 5
    items:
      - "rose"
      - "red ribbons"
      - "book"
  -
    id: 1
    name: "Garry"
    age: 20
    items:
      - "coat"
      - "spider on head"
  -
    id: 666
    name: "Mary"
    age: 5
    items:
      - "whatever"

But when I doc.toString(), the sequence become:

# This is comments
characters:
  - id: 0
    name: "Ib"
    age: 5
    items:
      - "rose"
      - "red ribbons"
      - "book"
  - id: 1
    name: "Garry"
    age: 20
    items:
      - "coat"
      - "spider on head"
  - id: 666
    name: "Mary"
    age: 5
    items:
      - "whatever"

I don't want to modify the coding styles of the original *.yaml files as possible as it can (for the readability for human beings), is there any option to keep these new lines at the beginning of an object (map / collection / -) ? Thanks.

[eemeli]

This output styling is currently not possible with yaml.