name: base
version: 0.1

dependencies:
  extra: "*"

nodes:
  - type_id: HEADING
    has_children: false
    attributes:
      - name: level
        optional: false
        data_type: !Int
      - name: inner
        optional: false
        data_type: !Node
    children:
      - type_id: inner
        optional: false

  - type_id: PARAGRAPH
    has_children: true
    children:
      - kind: ANY
        repeat: "*"

  - type_id: SOFT_BREAK
    has_children: false

collections:
  - name: inline
    type: !OneOf[TEXT, STYLED, SOFT_BREAK, HARD_BREAK, CODE, MATH_INLINE, COMMAND]
  - name: block
    type: !OneOf[PARAGRAPH, HEADING, CODE_BLOCK, LIST]

nodest:
  - type_id: HEADING
    has_children: false
    attributes:
      - name: level
        optional: false
        data_type: !Int
      - name: inner
        optional: false
        data_type: !Node
    children:
      - type_id: inner
        optional: false

  - type_id: LIST
    attributes:
      - name: type
        type: enum
        values: [unordered, numeric, alphabetic, roman]
      - name: start
        type: int
        optional: yes
    children:
      - type: !Is[LIST_ITEM]
        count: one

  - type_id: CODE_BLOCK
    attributes:
      - name: label
        type: string
        optional: true
      - name: language
        type: string
        optional: true
      - name: is_cell
        type: flag
    has_value: true

  - type_id: MATH
    attributes:
      - name: label
        type: string
        optional: true
      - name: display_block
        type: flag
        optional: true
    has_value: true

  - type_id: STYLED
    attributes:
      - name: style
        type: Enum[emphasis, strong, strikethrough, underline]
    children:
      - type: !Collection inline
        count: one_or_many


  - type_id: PARAGRAPH
    children:
      - kind: !Collection[block]
        count: one_or_many

  - type_id: SOFT_BREAK
  - type_id: HARD_BREAK
  - type_id: HORIZONTAL_RULE


  # Example command
  - type_id: TASK
    attributes:
      - name: level
        type: Enum[easy, medium, hard]
    children:
      - type: !Is task:parameter_caption
        count: zero_or_one
      - type: !Any
        count: zero_or_many

  - type_id: task:parameter_caption
    children:
      - type: !Collection inline
        count: one_or_many