cdn-0031-mark-depth-exceeded

A Mark opener at depth 9 exceeds the maximum of 8: it does not open, degrades to literal Text, and emits CDN-0031. The eight enclosing Marks are unaffected and close normally; the now-unmatched closer is literal too

§5.10

Input

::a ::a ::a ::a ::a ::a ::a ::a ::a ::::::::::::::::::

Output AST

- type: Paragraph
  children:
    - type: Mark
      name: a
      children:
        - type: Mark
          name: a
          children:
            - type: Mark
              name: a
              children:
                - type: Mark
                  name: a
                  children:
                    - type: Mark
                      name: a
                      children:
                        - type: Mark
                          name: a
                          children:
                            - type: Mark
                              name: a
                              children:
                                - type: Mark
                                  name: a
                                  children:
                                    - type: Text
                                      value: "::a ::"

Diagnostics

- code: CDN-0031
  level: warning