LLMO-1463: Readability: support for rich text suggestions (auto optimize)

Author: baranovskyalexandr

src/readability/shared/hast-utils.js

@@ -0,0 +1,24 @@
+/*
+ * Copyright 2026 Adobe. All rights reserved.
+ * This file is licensed to you under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License. You may obtain a copy
+ * of the License at http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software distributed under
+ * the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR REPRESENTATIONS
+ * OF ANY KIND, either express or implied. See the License for the specific language
+ * governing permissions and limitations under the License.
+ */
+
+import { fromHtml } from 'hast-util-from-html';
+
+/**
+ * Converts an HTML string to a HAST (Hypertext Abstract Syntax Tree) fragment.
+ * The resulting tree is compatible with Tokowaka's `valueFormat: "hast"` patch format.
+ *
+ * @param {string} html - Inner HTML string to convert
+ * @returns {import('hast').Root} HAST root node
+ */
+export function htmlToHast(html) {
+  return fromHtml(html, { fragment: true });
+}