{{- $page := . -}}
{{- $items := slice -}}
{{- $raw := $page.RawContent | default "" -}}
{{- if and (or $page.IsPage $page.IsSection) $raw -}}
  {{- $raw = replaceRE "(?ms)```.*?```" "\n" $raw -}}
  {{- range findRE `(?m)^#{2,3}\s+.+$` $raw -}}
    {{- if lt (len $items) 12 -}}
      {{- $rawLine := replaceRE `^#{2,3}\s+` "" . | markdownify | plainify | htmlUnescape | replaceRE "\\s+" " " | chomp -}}
      {{- $line := partial "utils/clean-structured-label.html" $rawLine -}}
      {{- if gt (len $line) 2 -}}
        {{- $items = $items | append (dict
          "@type" "ListItem"
          "position" (add (len $items) 1)
          "name" $line
          "url" (printf "%s#%s" $page.Permalink ($rawLine | anchorize))
        ) -}}
      {{- end -}}
    {{- end -}}
  {{- end -}}
{{- end -}}
{{- return $items -}}