Added the organization descriptors and a number value to the structured data types in the Infrastructure package.

Packages/Infrastructure/Sources/Public/Types/StructuredData.swift

@@ -46,11 +46,17 @@ public extension StructuredData {
     /// - Parameters:
     ///   - name: the name of the organization and the site.
     ///   - url: the absolute URL the site is served at.
+    ///   - alternateName: the name the organization is also known by, or `nil` (the default) to omit its property.
+    ///   - description: what the organization does, or `nil` (the default) to omit its property.
+    ///   - areaServed: the area the organization serves, or `nil` (the default) to omit its property.
     ///   - logo: the absolute URL of the organization's logo, or `nil` (the default) to omit its property.
     ///   - profiles: the absolute URLs of the organization's public profiles, or empty (the default) to omit their property.
     init(
         name: String,
         url: String,
+        alternateName: String? = nil,
+        description: String? = nil,
+        areaServed: String? = nil,
         logo: String? = nil,
         profiles: [String] = []
     ) {
@@ -61,6 +67,18 @@ public extension StructuredData {
             .init(.url, value: .string(url)),
         ]
 
+        if let alternateName {
+            organization.append(.init(.alternateName, value: .string(alternateName)))
+        }
+
+        if let description {
+            organization.append(.init(.description, value: .string(description)))
+        }
+
+        if let areaServed {
+            organization.append(.init(.areaServed, value: .string(areaServed)))
+        }
+
         if let logo {
             organization.append(.init(.logo, value:.string(logo)))
         }

Packages/Infrastructure/Sources/Public/Types/StructuredData/StructuredDataProperty.swift

@@ -69,6 +69,12 @@ extension StructuredData.Property {
 // MARK: - Constants
 
 public extension StructuredData.Property.Name {
+    /// The name the thing a node describes is also known by.
+    static let alternateName: Self = "alternateName"
+    /// The area an organization serves.
+    static let areaServed: Self = "areaServed"
+    /// What the thing a node describes is or does.
+    static let description: Self = "description"
     /// The absolute URL of an organization's logo.
     static let logo: Self = "logo"
     /// The name of the thing a node describes.

Packages/Infrastructure/Sources/Public/Types/StructuredData/StructuredDataValue.swift

@@ -1,5 +1,5 @@
 extension StructuredData {
-    /// A value of a ``Property``: a string, a list, a nested node, or a reference to another node.
+    /// A value of a ``Property``: a string, a number, a list, a nested node, or a reference to another node.
     ///
     /// Every string a value renders is escaped as a JSON literal with `<` escaped as well, so a value can never close the `script`
     /// tag embedding the payload it renders into.
@@ -8,6 +8,8 @@ extension StructuredData {
         case array([Value])
         /// A nested node, e.g. the place a schema.org event is located at.
         case node(Node)
+        /// A whole number, e.g. a list item's position, rendered unquoted so it reads as a number rather than as text.
+        case number(Int)
         /// A reference to the ``Node/id`` of another node in the graph, rendered as an `@id` object.
         case reference(String)
         /// A string value.
@@ -28,6 +30,8 @@ extension StructuredData.Value {
             "[\(values.map(\.fragment).joined(separator: .Separator.comma))]"
         case .node(let node):
             node.fragment
+        case .number(let number):
+            String(number)
         case .reference(let id):
             #"{"@id":\#(Self.literal(id))}"#
         case .string(let string):

Packages/Infrastructure/Tests/Cases/Public/Types/StructuredDataTests.swift

@@ -30,6 +30,21 @@ struct StructuredDataTests {
         )
     }
 
+    @Test
+    func `carries the organization's alternate name, description, and area in that order`() {
+        let data = StructuredData(
+            name: "A Site",
+            url: "https://site.example/",
+            alternateName: "The Site",
+            description: "What the site is.",
+            areaServed: "A City"
+        )
+
+        #expect(data.payload.contains(
+            #""name":"A Site","url":"https://site.example/","alternateName":"The Site","description":"What the site is.","areaServed":"A City""#
+        ))
+    }
+
     @Test
     func `omits the properties of the facts minimal data does not carry`() {
         let data = StructuredData(
@@ -120,6 +135,9 @@ struct StructuredDataTests {
         #expect(StructuredData.Value.array([.string("A"), .string("B")]).fragment == #"["A","B"]"#)
         #expect(StructuredData.Value.reference("https://site.example/#organization").fragment == #"{"@id":"https://site.example/#organization"}"#)
         #expect(StructuredData.Value.node(.init(type: "Place", properties: [])).fragment == #"{"@type":"Place"}"#)
+        // Unquoted, or a consumer reads the position of a list item as text and cannot order by it.
+        #expect(StructuredData.Value.number(1).fragment == "1")
+        #expect(StructuredData.Value.number(-3).fragment == "-3")
     }
 
     @Test