{
  "lineWidth": -1,
  "schema": {
    "title": "Front matter schema",
    "type": "object",
    "additionalProperties": false,
    "required": ["title", "slug", "page-type"],
    "properties": {
      "title": {
        "title": "Title",
        "description": "Rendered page title and for SEO",
        "type": "string",
        "maxLength": 120
      },
      "short-title": {
        "title": "Short title",
        "description": "To be used in sidebars",
        "type": "string",
        "maxLength": 60
      },
      "slug": {
        "title": "Slug",
        "description": "URL path of the page",
        "type": "string"
      },
      "page-type": {
        "title": "Page type",
        "description": "Type of the page",
        "type": "string"
      },
      "sidebar": {
        "title": "Sidebar navigation",
        "description": "Sidebar navigation(s) to show, defined as YAML in /files/en-us/sidebars",
        "type": ["array", "string"],
        "items": {
          "type": "string",
          "enum": [
            "mediasidebar",
            "urlsidebar",
            "xmlsidebar",
            "xpathsidebar",
            "xsltsidebar",
            "exsltsidebar"
          ]
        }
      },
      "status": {
        "title": "Status",
        "description": "Browser compatibility status",
        "type": "array",
        "uniqueItems": true,
        "items": {
          "type": "string",
          "enum": ["deprecated", "experimental", "non-standard"]
        }
      },
      "browser-compat": {
        "title": "Browser compatibility",
        "description": "Browser compatibility location",
        "type": ["array", "string"]
      },
      "spec-urls": {
        "title": "Specification URLs",
        "description": "Specification locations",
        "type": ["array", "string"],
        "format": "uri",
        "items": {
          "type": "string",
          "format": "uri"
        }
      }
    },
    "anyOf": [
      {
        "if": {
          "properties": {
            "slug": { "type": "string", "pattern": "^Glossary/" }
          }
        },
        "then": {
          "properties": {
            "page-type": {
              "enum": ["glossary-definition", "glossary-disambiguation"]
            }
          }
        },
        "else": false
      },
      {
        "if": {
          "properties": {
            "slug": { "type": "string", "pattern": "^Learn_web_development/" }
          }
        },
        "then": {
          "properties": {
            "page-type": {
              "enum": [
                "guide",
                "landing-page",
                "learn-topic",
                "learn-module",
                "learn-module-chapter",
                "learn-module-assessment",
                "learn-faq"
              ]
            }
          }
        },
        "else": false
      },
      {
        "if": {
          "properties": {
            "slug": { "type": "string", "pattern": "^Learn_web_development/" }
          }
        },
        "then": {
          "properties": {
            "page-type": {
              "enum": [
                "guide",
                "landing-page",
                "learn-topic",
                "learn-module",
                "learn-module-chapter",
                "learn-module-assessment",
                "learn-faq"
              ]
            }
          }
        },
        "else": false
      },
      {
        "if": {
          "properties": { "slug": { "type": "string", "pattern": "^MDN/" } }
        },
        "then": {
          "properties": {
            "page-type": {
              "enum": [
                "landing-page",
                "mdn-community-guide",
                "mdn-writing-guide"
              ]
            }
          }
        },
        "else": false
      },
      {
        "if": {
          "properties": {
            "slug": { "type": "string", "pattern": "^Mozilla/Firefox" }
          }
        },
        "then": {
          "properties": {
            "page-type": {
              "enum": [
                "guide",
                "landing-page",
                "firefox-release-notes",
                "firefox-release-notes-active"
              ]
            }
          }
        },
        "else": false
      },
      {
        "if": {
          "properties": { "slug": { "type": "string", "pattern": "^Web/SVG/" } }
        },
        "then": {
          "properties": {
            "page-type": {
              "enum": ["guide", "landing-page", "svg-attribute", "svg-element"]
            }
          }
        },
        "else": false
      },
      {
        "if": {
          "properties": {
            "slug": { "type": "string", "pattern": "^Web/HTML/" }
          }
        },
        "then": {
          "properties": {
            "page-type": {
              "enum": [
                "guide",
                "landing-page",
                "html-attribute",
                "html-attribute-value",
                "html-element"
              ]
            }
          }
        },
        "else": false
      },
      {
        "if": {
          "properties": {
            "slug": {
              "type": "string",
              "pattern": "^Mozilla/Add-ons/WebExtensions/"
            }
          }
        },
        "then": {
          "properties": {
            "page-type": {
              "enum": [
                "guide",
                "landing-page",
                "webextension-api-function",
                "webextension-api",
                "webextension-api-event",
                "webextension-api-property",
                "webextension-api-type",
                "webextension-manifest-key"
              ]
            }
          }
        },
        "else": false
      },
      {
        "if": {
          "properties": { "slug": { "type": "string", "pattern": "^Web/API/" } }
        },
        "then": {
          "properties": {
            "page-type": {
              "enum": [
                "guide",
                "landing-page",
                "web-api-overview",
                "web-api-interface",
                "web-api-constructor",
                "web-api-instance-method",
                "web-api-instance-property",
                "web-api-static-method",
                "web-api-static-property",
                "web-api-event",
                "webgl-extension",
                "webgl-extension-method"
              ]
            }
          }
        },
        "else": false
      },
      {
        "if": {
          "properties": { "slug": { "type": "string", "pattern": "^Web/CSS/" } }
        },
        "then": {
          "properties": {
            "page-type": {
              "enum": [
                "guide",
                "landing-page",
                "css-at-rule",
                "css-at-rule-descriptor",
                "css-combinator",
                "css-function",
                "css-keyword",
                "css-media-feature",
                "css-module",
                "css-property",
                "css-pseudo-class",
                "css-pseudo-element",
                "css-selector",
                "css-shorthand-property",
                "css-type"
              ]
            }
          }
        },
        "else": false
      },
      {
        "if": {
          "properties": {
            "slug": { "type": "string", "pattern": "^Web/JavaScript/" }
          }
        },
        "then": {
          "properties": {
            "page-type": {
              "enum": [
                "guide",
                "landing-page",
                "javascript-class",
                "javascript-constructor",
                "javascript-error",
                "javascript-function",
                "javascript-global-property",
                "javascript-instance-accessor-property",
                "javascript-instance-data-property",
                "javascript-instance-method",
                "javascript-language-feature",
                "javascript-namespace",
                "javascript-operator",
                "javascript-statement",
                "javascript-static-accessor-property",
                "javascript-static-data-property",
                "javascript-static-method"
              ]
            }
          }
        },
        "else": false
      },
      {
        "if": {
          "properties": {
            "slug": {
              "type": "string",
              "pattern": "^Web/Progressive_web_apps/Manifest/"
            }
          }
        },
        "then": {
          "properties": {
            "page-type": {
              "enum": ["guide", "landing-page", "web-manifest-member"]
            }
          }
        },
        "else": false
      },
      {
        "if": {
          "properties": {
            "slug": { "type": "string", "pattern": "^WebAssembly/" }
          }
        },
        "then": {
          "properties": {
            "page-type": {
              "enum": [
                "guide",
                "landing-page",
                "webassembly-function",
                "webassembly-constructor",
                "webassembly-interface",
                "webassembly-instance-property",
                "webassembly-instance-method",
                "webassembly-static-method",
                "webassembly-instruction"
              ]
            }
          }
        },
        "else": false
      },
      {
        "if": {
          "properties": {
            "slug": { "type": "string", "pattern": "^Web/WebDriver/" }
          }
        },
        "then": {
          "properties": {
            "page-type": {
              "enum": [
                "guide",
                "landing-page",
                "webdriver-command",
                "webdriver-capability",
                "webdriver-error",
                "reference"
              ]
            }
          }
        },
        "else": false
      },
      {
        "if": {
          "properties": {
            "slug": {
              "type": "string",
              "pattern": "^Web/HTTP/Reference/Headers/Content-Security-Policy/"
            }
          }
        },
        "then": {
          "properties": { "page-type": { "enum": ["http-csp-directive"] } }
        },
        "else": false
      },
      {
        "if": {
          "properties": {
            "slug": {
              "type": "string",
              "pattern": "^Web/HTTP/Reference/Headers/Permissions-Policy/"
            }
          }
        },
        "then": {
          "properties": {
            "page-type": { "enum": ["http-permissions-policy-directive"] }
          }
        },
        "else": false
      },
      {
        "if": {
          "properties": {
            "slug": {
              "type": "string",
              "pattern": "^Web/HTTP/Reference/Headers/"
            }
          }
        },
        "then": {
          "properties": { "page-type": { "enum": ["guide", "http-header"] } }
        },
        "else": false
      },
      {
        "if": {
          "properties": {
            "slug": {
              "type": "string",
              "pattern": "^Web/HTTP/Reference/Methods/"
            }
          }
        },
        "then": {
          "properties": { "page-type": { "enum": ["http-method"] } }
        },
        "else": false
      },
      {
        "if": {
          "properties": {
            "slug": {
              "type": "string",
              "pattern": "^Web/HTTP/Reference/Status/"
            }
          }
        },
        "then": {
          "properties": { "page-type": { "enum": ["http-status-code"] } }
        },
        "else": false
      },
      {
        "if": {
          "properties": {
            "slug": {
              "type": "string",
              "pattern": "^Web/MathML/Reference/Element/"
            }
          }
        },
        "then": {
          "properties": { "page-type": { "enum": ["mathml-element"] } }
        },
        "else": false
      },
      {
        "if": {
          "properties": {
            "slug": {
              "type": "string",
              "pattern": "^Web/MathML/Reference/Global_attributes/"
            }
          }
        },
        "then": {
          "properties": { "page-type": { "enum": ["mathml-attribute"] } }
        },
        "else": false
      },
      {
        "if": {
          "properties": {
            "slug": {
              "type": "string",
              "pattern": "^Web/Accessibility/ARIA/Reference/Attributes/"
            }
          }
        },
        "then": {
          "properties": { "page-type": { "enum": ["aria-attribute"] } }
        },
        "else": false
      },
      {
        "if": {
          "properties": {
            "slug": {
              "type": "string",
              "pattern": "^Web/Accessibility/ARIA/Reference/Roles/"
            }
          }
        },
        "then": {
          "properties": { "page-type": { "enum": ["aria-role"] } }
        },
        "else": false
      },
      {
        "if": {
          "properties": {
            "slug": {
              "type": "string",
              "pattern": "^Web/HTTP/Guides/CORS/Errors/"
            }
          }
        },
        "then": {
          "properties": { "page-type": { "enum": ["http-cors-error"] } }
        },
        "else": false
      },
      {
        "if": {
          "properties": {
            "slug": { "type": "string", "pattern": "^Web/URI" }
          }
        },
        "then": {
          "properties": {
            "page-type": {
              "enum": ["guide", "landing-page", "uri-scheme", "uri-component"]
            }
          }
        },
        "else": false
      },
      {
        "if": {
          "properties": {
            "slug": { "type": "string", "pattern": ".*" }
          }
        },
        "then": {
          "properties": {
            "page-type": {
              "enum": [
                "guide",
                "landing-page",
                "listing-page",
                "how-to",
                "tutorial",
                "tutorial-chapter"
              ]
            }
          }
        },
        "else": false
      },
      {
        "if": {
          "properties": {
            "slug": { "type": "string", "pattern": "^Web/XML/XPath" }
          }
        },
        "then": {
          "properties": {
            "page-type": {
              "enum": ["guide", "landing-page", "xpath-function"]
            }
          }
        },
        "else": false
      },
      {
        "if": {
          "properties": {
            "slug": { "type": "string", "pattern": "^Web/XML/EXSLT" }
          }
        },
        "then": {
          "properties": {
            "page-type": {
              "enum": ["guide", "landing-page", "exslt-function"]
            }
          }
        },
        "else": false
      },
      {
        "if": {
          "properties": {
            "slug": { "type": "string", "pattern": "^Web/XML/XSLT" }
          }
        },
        "then": {
          "properties": {
            "page-type": {
              "enum": ["guide", "landing-page", "xslt-element", "xslt-axis"]
            }
          }
        },
        "else": false
      }
    ]
  },
  "attribute-order": [
    "title",
    "short-title",
    "slug",
    "page-type",
    "status",
    "browser-compat",
    "spec-urls",
    "sidebar"
  ]
}