Lumacs/CONTINUATION_PROMPT.md

Lumacs Development Continuation Prompt

Copy this entire prompt to start a new conversation and continue development:

---

I'm working on Lumacs, an Emacs-inspired text editor written in C++20 with ncurses and Lua scripting. The project is located at /Users/user/Projects/lumacs.

Current Status

Phase 5: Face System Complete - READY FOR GUI

• Emacs compatibility: ~98/100
• Build: Successful, binary at ./build/lumacs
• Face System: Fully implemented with Inheritance and Lua API (define_face).
• Architecture: UI decoupled via IEditorView.

Recent Accomplishments

1. Face System Complete ✅

• Lua API: Exposed define_face and FaceAttributes (with inheritance) to Lua.
• Inheritance: Implemented recursive face attribute resolution in Theme.
• Semantic Mapping: TextAttribute legacy enums map to semantic faces (e.g., ColorType::Keyword -> font-lock-keyword-face).

2. GUI Readiness

• IEditorView interface established.
• TuiEditor refactored to implement IEditorView.

Next Steps (Phase 6: GUI Frontend)

Phase 6: GTK4 Frontend (New Priority)

• Build System: Add GTK4 dependencies to CMakeLists.txt.
• Entry Point: Create src/main_gtk.cpp.
• Implementation: Create GtkEditor class implementing IEditorView.
• Rendering: Implement text rendering using Pango/Cairo and the Face system.

Future Roadmap

• Performance: Redisplay optimization.
• LSP: Language Server Protocol integration.

Testing Instructions

Build:

cmake --build build

Test Face API:

# Verify Face API and Inheritance
./build/lumacs scripts/test_face_api.lua

Verification:

• Lua API: define_face works as expected.
• Faces: UI elements are styled correctly using the Face system.

---

Phase 5 Complete! Face System & Architecture Ready for GTK4.