Professional Clarion language support for Visual Studio Code with intelligent code navigation, IntelliSense, and build integration.
- 5-Minute Quick Start - Get up and running fast
- Common Tasks - Everyday workflows made easy
- Installation Guide - Detailed setup instructions
- Full Changelog - See what's new
- Report Issues - Found a bug?
Full language support for Clarion code, basic support for templates.
- Clarion files (.clw, .inc) - Complete syntax highlighting and IntelliSense
- Template files (.tpl, .tpw) - Syntax highlighting with 100+ template keywords
- Code folding for structures and template blocks
- Context-aware coloring for Clarion code
- Note: Template files have syntax highlighting only (no IntelliSense/navigation)
- Learn more about Code Editing →
Get instant parameter hints and documentation - works immediately, no solution needed!
- 148 built-in functions with parameter hints
- Method overload support
- Hover documentation for all symbols
- Learn more about Signature Help →
Write code faster with 50+ smart snippets - works immediately!
- Structure templates (IF, LOOP, CASE, etc.)
- Variable declaration shortcuts
- Procedure and method templates
- Learn more about Snippets →
Open any Clarion solution - just open the folder.
- Auto-detects
.slnfiles in folder - Recent solutions list for quick access
- No workspace files needed
- Learn more about Solution Management →
Jump to definitions, find implementations - works in same file immediately, cross-file with solution.
- Press F12 to go to definition (same file: no solution needed!)
- Press Ctrl+F12 to go to implementation
- Hover for documentation and previews
- Cross-file navigation requires solution
- Learn more about Navigation →
Generate applications directly from VS Code.
- Right-click to build from Solution View
- Multiple build configurations (Debug/Release)
- Live build output
- Learn more about Building →
Catch errors as you type.
- Unterminated structures
- Missing RETURN statements
- FILE validation (DRIVER, RECORD)
- Learn more about Diagnostics →
Productivity features to write code faster.
- 50+ code snippets
- Paste as Clarion String
- Add Method Implementation
- Create New Class wizard
- Learn more about Code Editing →
- Visual Studio Code (latest version)
- Clarion (for build features)
- Open VS Code
- Press
Ctrl+Shift+X - Search for "Clarion Extensions"
- Click Install
Detailed installation instructions →
- Quick Start Guide - 5 minutes to your first solution
- Common Tasks - How do I...?
- Installation Guide - Detailed setup
- Navigation Features - F12, Ctrl+F12, hover tooltips
- Signature Help - Parameter hints and documentation
- Solution Management - Working with solutions
- Diagnostics & Validation - Error detection
- Code Editing Tools - Snippets, commands, wizards
- All Commands - Complete command reference
- All Settings - Configuration options
- Snippet Reference - Code snippet cheat sheet
- Clarion Language Reference - Language syntax
- 50-70% faster Ctrl+F12 - CrossFileCache reduces subsequent navigations to <100ms
- First navigation: 2-4 seconds (reads + caches file)
- Subsequent navigations: <100ms (cache hits)
- Full namespace prefix support -
DO DumpQue::SaveQStatenow works with hover and Ctrl+F12 - New RoutineHoverResolver with code preview
- Added
DO_ROUTINEandROUTINE_LABELpatterns
- Dependency-aware build order - Projects build in correct dependency order
- Application sort toggle - Switch between Solution Order and Build Order
- Build progress indicators - Spinning icon, build counter (e.g., "Building 2/5")
- Batch UpperPark commands - Import/Export/Show All Differences
- New context menu commands - Build Project, Generate + Build, Copy Path, Open in Clarion IDE
- Generate All/Build All - Build multiple applications in dependency order
- FUNCTION declarations now work with Ctrl+F12 (cross-project)
- Procedures without parameters show correct hover info
- Methods named like keywords (e.g., MESSAGE) show method info instead of keyword help
Fixed critical issues with code folding for window definitions:
- APPLICATION structures now fold correctly
- Nested MENU structures fold properly at any indentation level
- Removed arbitrary 50-column limit for structure recognition
Impact: Complex window/application definitions with nested menus now have proper code folding support.
Dedicated syntax highlighting for .tpl and .tpw files with 100+ template keywords.
50-60% faster token processing with optimized caching and parent relationship indexing.
F12 now correctly prioritizes local variables over globals with the same name.
- GitHub Issues - Report bugs or request features
- Discussions - Ask questions, share tips
Special thanks to:
- fushnisoft - Original Clarion syntax highlighting
- The Clarion community for feedback and testing