link-both-brackets-empty

[][] with both brackets empty is a valid page link with empty target; allows empty inline anchors with custom attributes when attrs trail the construct

§5.5

Input

[][]{#anchor .marker}

Output AST

- type: Paragraph
  children:
    - type: Link
      kind: page
      children: []
      target: ""
      attributes:
        - key: id
          value: anchor
        - key: class
          value:
            - marker