A tag with builder & new tag builder expression

Sources/SwiftHtml/Components/TagBuilder.swift

@@ -16,10 +16,14 @@ public enum TagBuilder {
         Tag(.init(type: .group), children: components.flatMap { $0 })
     }
 
+    public static func buildExpression(_ expression: [Tag]) -> [Tag] {
+        expression
+    }
+
     public static func buildExpression(_ expression: Tag) -> [Tag] {
         [expression]
     }
-    
+
     public static func buildEither(first component: [Tag]) -> [Tag] {
         component
     }

Sources/SwiftHtml/Html/Tags/A.swift

@@ -16,8 +16,12 @@
 /// - An active link is underlined and red
 public final class A: Tag {
 
-    public init(_ value: String) {
-        super.init(Node(type: .standard, name: "a", contents: value))
+    public init(_ contents: String? = nil, @TagBuilder _ builder: () -> [Tag]) {
+        super.init(Node(type: .standard, name: "a", contents: contents), children: builder())
+    }
+
+    public convenience init(_ contents: String) {
+        self.init(contents) {}
     }
 }
 

Tests/SwiftHtmlTests/Tags/ATagTests.swift

@@ -0,0 +1,24 @@
+//
+//  File.swift
+//  
+//
+//  Created by Tibor Bodecs on 2021. 11. 29..
+//
+
+import XCTest
+@testable import SwiftHtml
+
+final class ATagTests: XCTestCase {
+
+    func testA() {
+
+        let doc = Document(.unspecified) {
+            A {
+                P("Hello")
+            }
+            .href("world")
+        }
+        XCTAssertEqual(DocumentRenderer(minify: true).render(doc), #"<a href="world"><p>Hello</p></a>"#)
+    }
+
+}

Tests/SwiftHtmlTests/Tags/FormTagTests.swift

@@ -10,6 +10,16 @@ import XCTest
 
 final class FormTagTests: XCTestCase {
 
+    func testGroup() {
+        let items = ["a", "b", "c"]
+        let doc = Document(.unspecified) {
+            Form {
+                items.map { P($0) }
+            }
+        }
+        XCTAssertEqual(DocumentRenderer(minify: true).render(doc), #"<form><p>a</p><p>b</p><p>c</p></form>"#)
+    }
+
     func testForm() {
         let doc = Document(.html) {
             Form {