refactor: Replace HTML serializer with the unified ecosystem

package.json

@@ -96,8 +96,8 @@
         "@testing-library/dom": "9.3.0",
         "@testing-library/jest-dom": "5.16.5",
         "@testing-library/react": "14.0.0",
+        "@types/hast": "2.3.4",
         "@types/lodash-es": "4.17.7",
-        "@types/marked": "4.3.1",
         "@types/react": "18.2.6",
         "@types/react-dom": "18.2.4",
         "@types/react-syntax-highlighter": "15.5.6",
@@ -127,8 +127,6 @@
         "react-icons": "4.8.0",
         "react-markdown": "8.0.7",
         "react-syntax-highlighter": "15.5.0",
-        "rehype-raw": "6.1.1",
-        "remark-gfm": "3.0.1",
         "rimraf": "4.4.1",
         "semantic-release": "21.0.2",
         "storybook": "7.0.17",
@@ -141,10 +139,24 @@
     "peerDependencies": {
         "@react-hookz/web": "^14.2.3 || >=15.x",
         "emoji-regex": "^10.2.1",
+        "hast-util-is-element": "^2.1.0",
         "lodash-es": "^4.17.21",
-        "marked": "^4.1.1",
+        "mdast-util-gfm-strikethrough": "^1.0.0",
+        "micromark-extension-gfm-strikethrough": "^1.0.0",
         "react": "^17.0.0 || ^18.0.0",
         "react-dom": "^17.0.0 || ^18.0.0",
-        "turndown": "^7.1.1"
+        "rehype": "^12.0.0",
+        "rehype-minify-whitespace": "^5.0.0",
+        "rehype-raw": "^6.1.0",
+        "rehype-stringify": "^9.0.0",
+        "remark": "^14.0.0",
+        "remark-breaks": "^3.0.0",
+        "remark-gfm": "^3.0.0",
+        "remark-rehype": "^10.1.0",
+        "turndown": "^7.1.0",
+        "unified": "^10.1.0",
+        "unist-util-is": "^5.2.0",
+        "unist-util-remove": "^3.1.0",
+        "unist-util-visit": "^4.1.0"
     }
 }

src/helpers/unified.test.ts

@@ -0,0 +1,13 @@
+import { isTextNode } from './unified'
+
+describe('Helper: Unified', () => {
+    describe('#isTextNode', () => {
+        test('returns `true` when the given node is a hast text node', () => {
+            expect(isTextNode({ type: 'text' })).toBe(true)
+        })
+
+        test('returns `false` when the given node is NOT a hast text node', () => {
+            expect(isTextNode({ type: 'element' })).toBe(false)
+        })
+    })
+})

src/helpers/unified.ts

@@ -0,0 +1,16 @@
+import { is } from 'unist-util-is'
+
+import type { Node, Text } from 'hast'
+
+/**
+ * Check if a given node is a unist text node.
+ *
+ * @param node The node to check.
+ *
+ * @returns `true` if the node is a unist text node, `false` otherwise.
+ */
+function isTextNode(node: Node): node is Text {
+    return is(node, { type: 'text' })
+}
+
+export { isTextNode }