# Zexus Keyword Testing & Documentation - Index

## 🎯 Quick Links

### Main Documents
- [📋 Master Tracking List](./KEYWORD_TESTING_MASTER_LIST.md) - Central tracking of all keywords and their testing status
- [📊 Project Summary](./KEYWORD_TESTING_PROJECT_SUMMARY.md) - Overview of the testing project
- [📚 Test Directory README](../tests/keyword_tests/README.md) - How to run and write tests

### Keyword Documentation
- [LET Keyword](./keywords/LET.md) - Complete guide to the LET keyword

## 📂 Project Structure

```
zexus-interpreter/
│
├── docs/
│   ├── KEYWORD_TESTING_INDEX.md          ← You are here
│   ├── KEYWORD_TESTING_MASTER_LIST.md     ← Main tracking document
│   ├── KEYWORD_TESTING_PROJECT_SUMMARY.md ← Project overview
│   └── keywords/                          ← Individual keyword docs
│       └── LET.md
│
└── tests/
    └── keyword_tests/
        ├── README.md                      ← Test documentation
        ├── run_keyword_test.sh           ← Test runner script
        ├── easy/                         ← Easy tests
        │   └── test_let_easy.zx
        ├── medium/                       ← Medium tests
        │   └── test_let_medium.zx
        └── complex/                      ← Complex tests
            └── test_let_complex.zx
```

## 🚀 Quick Start

### 1. View Current Status
```bash
cat docs/KEYWORD_TESTING_MASTER_LIST.md
```

### 2. Read Documentation
```bash
cat docs/keywords/LET.md
```

### 3. Run Tests
```bash
# Run all tests for a keyword
./tests/keyword_tests/run_keyword_test.sh let all

# Run specific difficulty
./tests/keyword_tests/run_keyword_test.sh let easy
```

## 📋 All Keywords (Organized by Category)

### 1. Core Language (Priority 1)
- **Variables**: [LET](./keywords/LET.md) ✅, CONST
- **Control Flow**: IF, ELIF, ELSE, WHILE, FOR, EACH
- **Functions**: ACTION, FUNCTION, LAMBDA, RETURN
- **I/O**: PRINT, DEBUG

### 2. Module System (Priority 2)
- USE, IMPORT, EXPORT, MODULE, PACKAGE, FROM, EXTERNAL

### 3. Error Handling (Priority 3)
- TRY, CATCH, REVERT, REQUIRE

### 4. Async & Concurrency (Priority 4)
- ASYNC, AWAIT, CHANNEL, SEND, RECEIVE, ATOMIC

### 5. Events & Reactive (Priority 4)
- EVENT, EMIT, STREAM, WATCH

### 6. Security Features (Priority 4)
- **Core**: ENTITY, VERIFY, CONTRACT, PROTECT, SEAL, AUDIT, RESTRICT, SANDBOX, TRAIL
- **Capabilities**: CAPABILITY, GRANT, REVOKE, IMMUTABLE
- **Validation**: VALIDATE, SANITIZE

### 7. Blockchain (Priority 5)
- LEDGER, STATE, TX, HASH, SIGNATURE, VERIFY_SIG, LIMIT, GAS, PERSISTENT, STORAGE

### 8. Performance (Priority 4)
- NATIVE, GC, INLINE, BUFFER, SIMD

### 9. Advanced Features (Priority 4)
- DEFER, PATTERN, ENUM, PROTOCOL, INTERFACE, TYPE_ALIAS, IMPLEMENTS, THIS, USING

### 10. Renderer & UI (Priority 5)
- **Components**: SCREEN, COMPONENT, THEME, COLOR
- **Graphics**: GRAPHICS, CANVAS, ANIMATION, CLOCK
- **Operations**: MIX, RENDER, ADD_TO, SET_THEME, CREATE_CANVAS, DRAW

### 11. Modifiers (Priority 3)
- PUBLIC, PRIVATE, SEALED, SECURE, PURE, VIEW, PAYABLE, MODIFIER

### 12. Special Keywords (Priority 2)
- EXACTLY, EMBEDDED, MAP, TRUE, FALSE, NULL

### 13. Middleware & Cache (Priority 5)
- MIDDLEWARE, AUTH, THROTTLE, CACHE, INJECT

## 📊 Testing Progress

| Category | Total | Tested | Complete | In Progress | Not Started |
|----------|-------|--------|----------|-------------|-------------|
| Core Language | 13 | 1 | 0 | 1 | 12 |
| Module System | 7 | 0 | 0 | 0 | 7 |
| Error Handling | 4 | 0 | 0 | 0 | 4 |
| Async/Concurrency | 6 | 0 | 0 | 0 | 6 |
| Events/Reactive | 4 | 0 | 0 | 0 | 4 |
| Security | 13 | 0 | 0 | 0 | 13 |
| Blockchain | 10 | 0 | 0 | 0 | 10 |
| Performance | 5 | 0 | 0 | 0 | 5 |
| Advanced | 9 | 0 | 0 | 0 | 9 |
| Renderer/UI | 15 | 0 | 0 | 0 | 15 |
| Modifiers | 8 | 0 | 0 | 0 | 8 |
| Special | 6 | 0 | 0 | 0 | 6 |
| Middleware | 5 | 0 | 0 | 0 | 5 |
| **TOTAL** | **130+** | **1** | **0** | **1** | **129+** |

**Overall Progress**: ~0.8% complete

## 🐛 Current Issues

### Open Bugs (2)
1. **LET: Colon Syntax** - `let x : value` not working correctly
2. **LET: Array Concatenation** - `list + [item]` throws type error

See [Master List](./KEYWORD_TESTING_MASTER_LIST.md#error-log) for details.

## 📝 Documentation Standards

Each keyword documentation includes:

1. Overview & Purpose
2. Syntax Examples
3. Basic Usage
4. Type System Integration
5. Advanced Features
6. Comparisons with Related Keywords
7. Scope & Lifetime Rules
8. Common Patterns & Idioms
9. Edge Cases & Gotchas
10. Best Practices
11. Performance Considerations
12. Integration Examples
13. Debugging Tips
14. Future Enhancements
15. Real-World Examples

## 🎓 For New Contributors

### Testing a New Keyword

1. **Read the token definition** in `src/zexus/zexus_token.py`
2. **Check parser implementation** in `src/zexus/parser/parser.py`
3. **Review evaluator logic** in `src/zexus/evaluator/`
4. **Create test files** for easy/medium/complex levels
5. **Write comprehensive documentation**
6. **Update master tracking list**
7. **Run tests and log errors**

### Documentation Template

Use [LET.md](./keywords/LET.md) as a template for new keyword documentation.

### Test Template

Use existing test files as templates:
- Easy: `tests/keyword_tests/easy/test_let_easy.zx`
- Medium: `tests/keyword_tests/medium/test_let_medium.zx`
- Complex: `tests/keyword_tests/complex/test_let_complex.zx`

## 🔧 Tools & Scripts

### Test Runner
```bash
./tests/keyword_tests/run_keyword_test.sh <keyword> <level>
```

Levels: `easy`, `medium`, `complex`, `all`

### Direct Execution
```bash
./zx <test_file.zx>
```

## 📚 Additional Resources

### Source Code
- **Token Definitions**: `src/zexus/zexus_token.py`
- **Parser**: `src/zexus/parser/parser.py`
- **Evaluator**: `src/zexus/evaluator/`
- **AST**: `src/zexus/zexus_ast.py`

### Examples
- **Example Programs**: `examples/`
- **Module Examples**: `zpm_modules/*/examples/`

### Project Documentation
- **Architecture**: `docs/ARCHITECTURE.md`
- **Quick Start**: `docs/QUICK_START.md`
- **Module System**: `docs/MODULE_SYSTEM.md`

## 🎯 Next Steps

### Immediate (Week 1)
1. Fix LET keyword bugs
2. Test CONST keyword
3. Test IF/ELIF/ELSE
4. Test PRINT/DEBUG

### Short Term (Month 1)
1. Complete Phase 1 (Core Language)
2. Begin Phase 2 (Module System)
3. Set up CI/CD for tests
4. Generate automated reports

### Long Term (Quarter 1)
1. Complete all keyword testing
2. Fix all identified bugs
3. Publish comprehensive documentation
4. Create interactive tutorials

## 📈 Metrics

- **Keywords Identified**: 130+
- **Keywords Tested**: 1
- **Tests Created**: 50+
- **Documentation Pages**: 1
- **Errors Found**: 2
- **Lines of Documentation**: 500+
- **Project Files Created**: 8

## 🌟 Achievements

- ✅ Systematic testing framework established
- ✅ Comprehensive documentation standards defined
- ✅ Organized project structure created
- ✅ First keyword fully tested and documented
- ✅ Error tracking system implemented
- ✅ Automated test runner created

## 💡 Future Enhancements

### Testing
- [ ] Automated regression testing
- [ ] Performance benchmarks
- [ ] Code coverage reports
- [ ] Fuzz testing
- [ ] Property-based testing

### Documentation
- [ ] Interactive examples
- [ ] Video tutorials
- [ ] API reference generator
- [ ] Searchable keyword database
- [ ] Multi-language translations

### Infrastructure
- [ ] CI/CD pipeline
- [ ] Automated test reports
- [ ] Visual dashboards
- [ ] Issue tracking integration
- [ ] Version control for tests

---

**Project Status**: Active Development  
**Started**: December 16, 2025  
**Last Updated**: December 16, 2025  
**Maintained By**: Zexus Language Team  

**Contact**: See project README for contribution guidelines.
