fix(plugin-container-syntax): typical markdown blockquote syntax thro…

…wing error (#1494)

Co-authored-by: Timeless0911 <[email protected]>

e2e/fixtures/github-alert/doc/index.mdx

@@ -0,0 +1,44 @@
+# Hello World
+
+> [!TIP]
+> This is a 'tip' style block.
+
+> [!NOTE]
+> This is a 'note' style block.
+
+> [!WARNING]
+> This is a 'warning' style block.
+
+> [!CAUTION]
+> This is a 'caution' style block.
+
+> [!DANGER]
+> This is a 'danger' style block.
+
+> [!INFO]
+> This is an 'info' style block.
+
+> [!DETAILS]
+> This is a 'details' style block.
+
+> # This is a heading inside a blockquote
+
+> **Bold text**
+
+> _Italic text_
+
+> [foo](bar)
+
+> `Inline code`
+
+> ```javascript
+> // This is a code block
+> console.log('Hello, World!');
+> ```
+
+> - List item 1
+> - List item 2
+>
+> > Nested blockquote
+>
+> ![Image Alt Text](https://github.com/web-infra-dev/rspress/assets/39261479/999e7946-45ff-45d5-b9cd-594e634e0e5a)

e2e/fixtures/github-alert/package.json

@@ -0,0 +1,16 @@
+{
+  "name": "@rspress-fixture/github-alert",
+  "version": "1.0.0",
+  "private": true,
+  "scripts": {
+    "dev": "rspress dev",
+    "build": "rspress build",
+    "preview": "rspress preview"
+  },
+  "dependencies": {
+    "rspress": "workspace:*"
+  },
+  "devDependencies": {
+    "@types/node": "^18.11.17"
+  }
+}

e2e/fixtures/github-alert/rspress.config.ts

@@ -0,0 +1,9 @@
+import * as path from 'node:path';
+import { defineConfig } from 'rspress/config';
+
+export default defineConfig({
+  root: path.join(__dirname, 'doc'),
+  markdown: {
+    mdxRs: false,
+  },
+});

e2e/fixtures/github-alert/tsconfig.json

@@ -0,0 +1 @@
+{}

packages/plugin-container-syntax/src/remarkPlugin.ts

@@ -137,7 +137,7 @@ function transformer(tree: Root) {
       if (node.type === 'blockquote' && node.children[0].type === 'paragraph') {
         const initiaterTag: string =
           // @ts-expect-error `value` is treated like `data`, but type expects `data`
-          node.children[0].children[0].value.toString();
+          node.children[0].children[0].value;
 
         if (REGEX_GH_BEGIN.test(initiaterTag)) {
           const match = initiaterTag.match(REGEX_GH_BEGIN);