Code in XML

⚠️ This extension is deprecated. It has been replaced by Code in XML (arukumo.code-in-xml), where all future development continues. Install the new extension to keep receiving updates and improvements. You can uninstall this deprecated extension after migrating.

Enables syntax highlighting for embedded code blocks inside XML files. Supported languages are:

<groovy>
<java>
<javascript>
<python>
<ruby>
<sql> | MyBatis tags (<select> / <insert> / <update> / <delete>)
<bash> | <shell> | <sh>

🌸 Japanese note
XMLファイルに記述したプログラム言語に対し構文ハイライトを有効にします。言語用の拡張を追加すると、埋め込みコードに言語用の色分けが適用されます。

I initially created this extension to help my team work with XML DSL files containing embedded Groovy code snippets for Apache Camel. Since it proved useful, I expanded it to support other languages like JS, SQL, and MyBatis mapper tags like <select>, <insert>, and so on. For veteran developers, even just the syntax colors are a real help for reading.

Example: Groovy in XML Groovy Example

Example: MyBatis mapper XML MyBatis Example

✨ Features

✅ Syntax highlighting for embedded code blocks inside XML
✅ Supports both CDATA and inline content
✅ The surrounding XML remains fully highlighted
✅ Native support for MyBatis mapper tags (<select>, <insert>, <update>, <delete>) — ideal for complex SQL with comments and special syntax
✅ Supports multiple SQL dialects (Oracle, MySQL, PostgreSQL)
✅ Targets .xml files

⚠️ Note: This extension only provides grammar scopes — it does not highlight, format, or analyze code itself. Colors are applied by VS Code's theme engine using installed language extensions. If embedded code appears uncolored, install the corresponding language extension (see Required Extensions).

📋 Required Extensions

For full syntax highlighting, install language extensions based on the languages you use:

Java: Extension Pack for Java (Microsoft)
Python: Python (Microsoft)
Groovy: Groovy Language Support or similar
Ruby: Ruby (Shopify)
SQL: SQLTools (mtxr), SQL Server (Microsoft), or PostgreSQL (Microsoft)
JavaScript: Built-in to VS Code

Optional

For XML formatting and validation:

🚀 Installation

This deprecated extension is no longer recommended for new installs.
Install the successor extension instead: Code in XML
If you are already using this deprecated extension, uninstall it after installing the successor extension.

Manual install of the deprecated extension from .vsix:

# Example: replace the version number as needed
code --install-extension vscode-code-in-xml-1.0.1.vsix

📝 Notes

VS Code built-in JavaScript grammar is used automatically (for source.js highlight)
In very nested XML structures, some themes may ignore embedded scopes
In embedded code, words such as name and status in SQL may be highlighted as keywords by your installed language extension when they match reserved words

📌 Changelog

See CHANGELOG.md for detailed release notes and version history.

⚖️ License

This extension does not bundle or redistribute third-party grammars.

☕ Support

If you find this extension helpful, a coffee would be greatly appreciated! ☕

[Deprecated] Code in XML

okkeng