attrs-scope-chain-mark

Three trailing {} on list item with Mark: distribute right-to-left — last to List, middle to ListItem, first to Mark

§6.1.2

Input

- ::sp:: {.a}{.b}{.c}

Output AST

- type: List
  kind: bullet
  loose: false
  children:
    - type: ListItem
      children:
        - type: Mark
          name: sp
          attributes:
            - key: class
              value:
                - a
      attributes:
        - key: class
          value:
            - b
  attributes:
    - key: class
      value:
        - c