From f8a6b391cd609ab1bd94e3f9e2a28e417b848704 Mon Sep 17 00:00:00 2001
From: Anh Hong <aqua.hong.97@gmail.com>
Date: Thu, 5 Nov 2020 18:33:08 +0700
Subject: [PATCH] refactor(v2): improve regex matching code-block title (#3685)

---
 .../docusaurus-theme-classic/src/theme/CodeBlock/index.tsx  | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/packages/docusaurus-theme-classic/src/theme/CodeBlock/index.tsx b/packages/docusaurus-theme-classic/src/theme/CodeBlock/index.tsx
index 5a61badac7..10eac4fd93 100644
--- a/packages/docusaurus-theme-classic/src/theme/CodeBlock/index.tsx
+++ b/packages/docusaurus-theme-classic/src/theme/CodeBlock/index.tsx
@@ -84,7 +84,7 @@ const highlightDirectiveRegex = (lang) => {
       return getHighlightDirectiveRegex();
   }
 };
-const codeBlockTitleRegex = /title=".*"/;
+const codeBlockTitleRegex = /(?:title=")(.*)(?:")/;
 
 export default ({
   children,
@@ -125,9 +125,7 @@ export default ({
     // Tested above
     // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
     codeBlockTitle = metastring
-      .match(codeBlockTitleRegex)![0]
-      .split('title=')[1]
-      .replace(/"+/g, '');
+      .match(codeBlockTitleRegex)![1];
   }
 
   let language =