Exult Usecode Syntax for VS Code

Syntax highlighting for Exult's UseCode C (UCC) and UseCode Assembly files.

This extension provides TextMate-based grammars for UseCode source files (extensions: .ucc, .uc, .uh, .ucxt) and UseCode assembly (.uca). It focuses on accurate highlighting of keywords, types, numbers, strings, comments, directives, script commands, intrinsics, and labels.

Features

• TextMate grammar for UseCode C (UCC) with:
  • Keywords, types, operators
  • Strings and escape sequences
  • Line and block comments
  • Directives (#include, #game, #line, etc.)
  • Intrinsic and user function highlighting
• TextMate grammar for UseCode Assembly (.uca) with mnemonics, labels, directives and comments
• Language configuration (brackets, auto-closing, surrounding pairs)
• Sample file included at samples/test.uc for testing and verification

Installation

Install from the Marketplace once published, or test locally:

1. Install dependencies (for packaging):

npm install -g vsce

1. Package locally:

vsce package

1. Install the produced .vsix in VS Code: open Command Palette -> "Extensions: Install from VSIX..."

Or run the extension in the Extension Development Host via the Debug view.

Usage

• Open any UseCode source file (e.g. *.uc, *.ucc, *.uh, *.ucxt, *.uca). VS Code should auto-detect the language. If not, set the language mode at the bottom-right and choose "UseCode" or "Usecode Assembly".
• Use the included samples/test.uc as a quick verification of highlighting coverage.

Screenshots

Include screenshots in images/ and reference them here. Example:

If no screenshot is present, the Marketplace will still display the README text; screenshots are recommended.

Changelog

See CHANGELOG.md for release history.

License

This project is licensed under GPL-2.0-or-later. See the LICENSE file for details.

Contributing

Contributions are welcome. Please open an issue or pull request on the repository. When contributing:

• Add tests or examples where useful
• Keep grammar changes minimal and documented
• Include sample snippets or test cases for any new rules

Contact and repository

Please add repository information in package.json (repository, bugs, homepage) so the Marketplace page links to the source. Replace placeholders with your repository URL before publishing.

If you'd like, I can: add a placeholder images/icon.png and images/screenshot1.png, wire up a simple GitHub Actions workflow to package on push, and finish the remaining package.json metadata. Tell me which you'd prefer next.