LPC Language Support (LDMUD/LP-245)
A comprehensive Visual Studio Code extension that provides language support for LPC (LPC Programming Language) used with the LDMUD game driver and LP-245 mudlib.
Author: Andreas Bogataj (andreas@bogga.se)
This extension is specifically tailored for LDMUD's implementation of LPC and follows the LP-245 mudlib conventions, including:
- LDMUD-specific formatting rules (
-cli0 case label indentation)
- LP-245 coding standards
- LDMUD efuns and applies
- LPC-specific data structures:
({}) arrays, ([]) mappings, (<>) multisets
Features
- Syntax Highlighting: Full syntax highlighting for LPC language constructs
- Code Formatting: Automatic code formatting with configurable indentation
- Language Configuration: Support for comments, brackets, and auto-pairing
- LDMUD Specific: Tailored for LDMUD efuns, applies, and language features
Supported File Extensions
.lpc - LPC source files.c - LPC source files (common convention).h - LPC header files
Language Features
Syntax Highlighting
The extension provides comprehensive syntax highlighting for:
- Keywords:
if, else, for, foreach, while, do, switch, case, default
- Types:
void, int, float, string, object, mapping, mixed, array
- Modifiers:
public, private, protected, static, nomask, varargs
- LDMUD Efuns: All built-in functions like
write(), tell_object(), clone_object()
- Apply Functions: Standard applies like
create(), init(), heart_beat()
- Data Structures: Arrays
({}), Mappings ([]), Multisets (<>)
Automatic code formatting includes:
- Proper indentation for blocks, functions, and control structures
- Consistent spacing around operators
- Alignment of function parameters
- Support for LPC-specific constructs
Configuration
The extension can be configured through VS Code settings:
{
"lpc.formatting.enabled": true,
"lpc.formatting.indentSize": 4,
"lpc.formatting.insertFinalNewline": true
}
Installation
- Open VS Code
- Go to Extensions (Ctrl+Shift+X)
- Search for "LPC Language Support for LDMUD"
- Click Install
Development
To develop this extension:
git clone https://github.com/bogataj/vscode-lpc
cd vscode-lpc
npm install
npm run compile
Press F5 to open a new VS Code window with the extension loaded.
Contributing
Contributions are welcome! Please feel free to submit issues or pull requests at:
https://github.com/bogataj/vscode-lpc
License
MIT License - see LICENSE file for details.
Changelog
See CHANGELOG.md for full version history.
1.2.5 - 2025-10-19
- Improved column-aligned inline comment spacing for better readability
- Comments align to multiples of 4 columns with minimum 2 spaces
- Creates clean visual columns for related statements
1.2.4 - 2025-10-19
- Fixed binary operator spacing in one-liner statements (e.g.,
arg+"_aptness" → arg + "_aptness")
- Fixed string content protection - paths like
"/std/object" no longer modified
- Fixed comment content protection - operators not added inside comments
- Fixed
else if one-liner preservation
- Added proper spacing for compound assignment operators (
+=, -=, etc.)
1.2.3 - 2025-10-19
- Fixed brace indentation when opening brace has inline comment
- Fixed one-liner if/while/for/foreach statements being incorrectly split
- Improved pattern detection for complex nested function calls
1.2.2 - 2025-10-18
- Critical Fix: Comments now completely ignored during formatting - prevents indentation corruption
- Fixed function name highlighting in declarations
- Added comprehensive test cases for comment handling
1.2.1 - 2025-10-18
- Added macro/constant highlighting for preprocessor defines and all-uppercase identifiers
- Fixed closing parenthesis alignment in deeply nested lambda/closure structures
- Added special handling for #'[ operator syntax
1.2.0 - 2025-10-18
- Comprehensive whitespace normalization with advanced spacing rules
- Enhanced function pointer syntax highlighting
- Critical string protection ensuring string literals are never modified
- Zero-diff formatting achieved on comprehensive test suite
1.0.0
- Initial release
- Basic syntax highlighting
- Code formatting support
- Language configuration for LPC
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