{
  "$schema": "https://schemas.wp.org/trunk/block.json",
  "apiVersion": 3,
  "version": "23.1",
  "name": "yoast-seo/table-of-contents",
  "title": "Yoast Table of Contents",
  "description": "Adds a table of contents to this page.",
  "category": "yoast-internal-linking-blocks",
  "icon": "editor-ul",
  "keywords": [
    "SEO",
    "links",
    "toc",
    "site structure"
  ],
  "textdomain": "wordpress-seo-premium",
  "attributes": {
    "title": {
      "type": "string",
      "source": "html",
      "selector": "h1,h2,h3,h4,h5,h6",
      "default": "Table of contents"
    },
    "level": {
      "type": "number",
      "default": 2
    },
    "maxHeadingLevel": {
      "type": "number",
      "default": 3
    },
    "headings": {
      "type": "array",
      "source": "query",
      "selector": "a",
      "query": {
        "content": {
          "type": "string",
          "source": "html"
        },
        "href": {
          "type": "string",
          "source": "attribute",
          "attribute": "href"
        },
        "level": {
          "type": "string",
          "source": "attribute",
          "attribute": "data-level"
        }
      }
    }
  },
  "example": {
    "attributes": {
      "headings": [
        {
          "content": "Heading 1",
          "href": "#heading-1",
          "level": "2"
        },
        {
          "content": "Subheading 1",
          "href": "#subheading-1",
          "level": "3"
        },
        {
          "content": "Subheading 2",
          "href": "#subheading-2",
          "level": "3"
        },
        {
          "content": "Heading 2",
          "href": "#heading-2",
          "level": "2"
        }
      ]
    }
  }
}