From 47ea285be3dcb66a83a593346995b5900d6c5478 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Tue, 28 Nov 2023 18:37:17 +0800
Subject: [PATCH] fix(parser): properly set initial inXML state based on root
 ns

---
 packages/compiler-core/src/parser.ts          |  4 ++++
 packages/compiler-dom/__tests__/parse.spec.ts | 15 +++++++++++++++
 2 files changed, 19 insertions(+)

diff --git a/packages/compiler-core/src/parser.ts b/packages/compiler-core/src/parser.ts
index 4e3c21480a..46d9c6f094 100644
--- a/packages/compiler-core/src/parser.ts
+++ b/packages/compiler-core/src/parser.ts
@@ -978,6 +978,10 @@ export function baseParse(input: string, options?: ParserOptions): RootNode {
         ? ParseMode.SFC
         : ParseMode.BASE
 
+  tokenizer.inXML =
+    currentOptions.ns === Namespaces.SVG ||
+    currentOptions.ns === Namespaces.MATH_ML
+
   const delimiters = options?.delimiters
   if (delimiters) {
     tokenizer.delimiterOpen = toCharCodes(delimiters[0])
diff --git a/packages/compiler-dom/__tests__/parse.spec.ts b/packages/compiler-dom/__tests__/parse.spec.ts
index 62c21f40db..23b0970e1b 100644
--- a/packages/compiler-dom/__tests__/parse.spec.ts
+++ b/packages/compiler-dom/__tests__/parse.spec.ts
@@ -481,5 +481,20 @@ describe('DOM parser', () => {
       expect(elementForieng.ns).toBe(Namespaces.SVG)
       expect(element.ns).toBe(Namespaces.HTML)
     })
+
+    test('correct XML handling with root ns', () => {
+      // when root ns is an XML namespace, there should be no special content
+      // treatment for <script>, <style>, <textarea> etc.
+      const ast = parse('<script><g/><g/></script>', {
+        ...parserOptions,
+        ns: Namespaces.SVG
+      })
+      const elementSvg = ast.children[0] as ElementNode
+      // should parse as nodes instead of text
+      expect(elementSvg.children).toMatchObject([
+        { type: NodeTypes.ELEMENT, tag: 'g' },
+        { type: NodeTypes.ELEMENT, tag: 'g' }
+      ])
+    })
   })
 })
-- 
2.47.3