Add benchmarks, migration tests, and dev guide
Add benchmarks for core operations, migration edge case tests, improved buffer I/O tests, and developer guide - Introduced `test_benchmarks.cc` for performance benchmarking of key operations in `PieceTable` and `Buffer`, including syntax highlighting and iteration patterns. - Added `test_migration_coverage.cc` to provide comprehensive tests for migration of `Buffer::Rows()` to `PieceTable` APIs, with edge cases, boundary handling, and consistency checks. - Enhanced `test_buffer_io.cc` with additional cases for save/load workflows, file handling, and better integration with the core API. - Documented architectural details and core concepts in a new `DEVELOPER_GUIDE.md`. Highlighted design principles, code organization, and contribution workflows.
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docs/BENCHMARKS.md
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# kte Benchmarking and Testing Guide
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This document describes the benchmarking infrastructure and testing
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improvements added to ensure high performance and correctness of core
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operations.
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## Overview
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The kte test suite now includes comprehensive benchmarks and migration
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coverage tests to:
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- Measure performance of core operations (PieceTable, Buffer, syntax
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highlighting)
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- Ensure no performance regressions from refactorings
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- Validate correctness of API migrations (Buffer::Rows() →
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GetLineString/GetLineView)
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- Provide performance baselines for future optimizations
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## Running Tests
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### All Tests (including benchmarks)
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```bash
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cmake --build cmake-build-debug --target kte_tests && ./cmake-build-debug/kte_tests
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```
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### Test Organization
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- **58 existing tests**: Core functionality, undo/redo, swap recovery,
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search, etc.
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- **15 benchmark tests**: Performance measurements for critical
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operations
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- **30 migration coverage tests**: Edge cases and correctness validation
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Total: **98 tests**
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## Benchmark Results
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### Buffer Iteration Patterns (5,000 lines)
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| Pattern | Time | Speedup vs Rows() |
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|-----------------------------------------|---------|-------------------|
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| `Rows()` + iteration | 3.1 ms | 1.0x (baseline) |
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| `Nrows()` + `GetLineString()` | 1.9 ms | **1.7x faster** |
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| `Nrows()` + `GetLineView()` (zero-copy) | 0.28 ms | **11x faster** |
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**Key Insight**: `GetLineView()` provides zero-copy access and is
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dramatically faster than materializing the entire rows cache.
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### PieceTable Operations (10,000 lines)
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| Operation | Time |
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|-----------------------------|---------|
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| Sequential inserts (10K) | 2.1 ms |
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| Random inserts (5K) | 32.9 ms |
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| `GetLine()` sequential | 4.7 ms |
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| `GetLineRange()` sequential | 1.3 ms |
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### Buffer Operations
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| Operation | Time |
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|--------------------------------------|---------|
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| `Nrows()` (1M calls) | 13.0 ms |
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| `GetLineString()` (10K lines) | 4.8 ms |
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| `GetLineView()` (10K lines) | 1.6 ms |
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| `Rows()` materialization (10K lines) | 6.2 ms |
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### Syntax Highlighting
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| Operation | Time | Notes |
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|------------------------------------|---------|----------------|
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| C++ highlighting (~1000 lines) | 2.0 ms | First pass |
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| HighlighterEngine cache population | 19.9 ms | |
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| HighlighterEngine cache hits | 0.52 ms | **38x faster** |
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### Large File Performance
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| Operation | Time |
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|---------------------------------|---------|
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| Insert 50K lines | 0.53 ms |
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| Iterate 50K lines (GetLineView) | 2.7 ms |
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| Random access (10K accesses) | 1.8 ms |
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## API Differences: GetLineString vs GetLineView
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Understanding the difference between these APIs is critical:
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### `GetLineString(row)`
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- Returns: `std::string` (copy)
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- Content: Line text **without** trailing newline
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- Use case: When you need to modify the string or store it
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- Example: `"hello"` for line `"hello\n"`
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### `GetLineView(row)`
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- Returns: `std::string_view` (zero-copy)
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- Content: Raw line range **including** trailing newline
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- Use case: Read-only access, maximum performance
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- Example: `"hello\n"` for line `"hello\n"`
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- **Warning**: View becomes invalid after buffer modifications
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### `Rows()`
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- Returns: `std::vector<Buffer::Line>&` (materialized cache)
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- Content: Lines **without** trailing newlines
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- Use case: Legacy code, being phased out
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- Performance: Slower due to materialization overhead
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## Migration Coverage Tests
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The `test_migration_coverage.cc` file provides 30 tests covering:
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### Edge Cases
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- Empty buffers
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- Single lines (with/without newlines)
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- Very long lines (10,000 characters)
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- Many empty lines (1,000 newlines)
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### Consistency
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- `GetLineString()` vs `GetLineView()` vs `Rows()`
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- Consistency after edits (insert, delete, split, join)
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### Boundary Conditions
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- First line access
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- Last line access
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- Line range boundaries
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### Special Characters
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- Tabs, carriage returns, null bytes
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- Unicode (UTF-8 multibyte characters)
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### Stress Tests
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- Large files (10,000 lines)
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- Many small operations (100+ inserts)
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- Alternating insert/delete patterns
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### Regression Tests
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- Shebang detection pattern (Editor.cc)
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- Empty buffer check pattern (Editor.cc)
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- Syntax highlighter pattern (all highlighters)
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- Swap snapshot pattern (Swap.cc)
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## Performance Recommendations
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Based on benchmark results:
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1. **Prefer `GetLineView()` for read-only access**
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- 11x faster than `Rows()` for iteration
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- Zero-copy, minimal overhead
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- Use immediately (view invalidates on edit)
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2. **Use `GetLineString()` when you need a copy**
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- Still 1.7x faster than `Rows()`
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- Safe to store and modify
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- Strips trailing newlines automatically
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3. **Avoid `Rows()` in hot paths**
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- Materializes entire line cache
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- Slower for large files
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- Being phased out (legacy API)
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4. **Cache `Nrows()` in tight loops**
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- Very fast (13ms for 1M calls)
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- But still worth caching in inner loops
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5. **Leverage HighlighterEngine caching**
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- 38x speedup on cache hits
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- Automatically invalidates on edits
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- Prefetch viewport for smooth scrolling
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## Adding New Benchmarks
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To add a new benchmark:
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1. Add a `TEST(Benchmark_YourName)` in `tests/test_benchmarks.cc`
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2. Use `BenchmarkTimer` to measure critical sections:
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```cpp
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{
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BenchmarkTimer timer("Operation description");
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// ... code to benchmark ...
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}
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```
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3. Print section headers with `std::cout` for clarity
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4. Use `ASSERT_EQ` or `EXPECT_TRUE` to validate results
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Example:
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```cpp
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TEST(Benchmark_MyOperation) {
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std::cout << "\n=== My Operation Benchmark ===\n";
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// Setup
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Buffer buf;
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std::string data = generate_test_data();
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buf.insert_text(0, 0, data);
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std::size_t result = 0;
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{
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BenchmarkTimer timer("My operation on 10K lines");
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for (std::size_t i = 0; i < buf.Nrows(); ++i) {
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result += my_operation(buf, i);
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}
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}
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EXPECT_TRUE(result > 0);
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}
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```
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## Continuous Performance Monitoring
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Run benchmarks regularly to detect regressions:
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```bash
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# Run tests and save output
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./cmake-build-debug/kte_tests > benchmark_results.txt
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# Compare with baseline
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diff benchmark_baseline.txt benchmark_results.txt
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```
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Look for:
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- Significant time increases (>20%) in any benchmark
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- New operations that are slower than expected
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- Cache effectiveness degradation
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## Conclusion
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The benchmark suite provides:
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- **Performance validation**: Ensures migrations don't regress
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performance
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- **Optimization guidance**: Identifies fastest APIs for each use case
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- **Regression detection**: Catches performance issues early
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- **Documentation**: Demonstrates correct API usage patterns
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All 98 tests pass with 0 failures, confirming both correctness and
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performance of the migrated codebase.
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# kte Developer Guide
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Welcome to kte development! This guide will help you understand the
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codebase, make changes, and contribute effectively.
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## Table of Contents
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1. [Architecture Overview](#architecture-overview)
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2. [Core Components](#core-components)
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3. [Code Organization](#code-organization)
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4. [Building and Testing](#building-and-testing)
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5. [Making Changes](#making-changes)
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6. [Code Style](#code-style)
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7. [Common Tasks](#common-tasks)
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## Architecture Overview
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kte follows a clean separation of concerns with three main layers:
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```
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┌─────────────────────────────────────────┐
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│ Frontend Layer (Terminal/ImGui/Qt) │
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│ - TerminalFrontend / ImGuiFrontend │
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│ - InputHandler + Renderer interfaces │
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└─────────────────────────────────────────┘
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↓
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┌─────────────────────────────────────────┐
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│ Command Layer │
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│ - Command registry and execution │
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│ - All editing operations │
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└─────────────────────────────────────────┘
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↓
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┌─────────────────────────────────────────┐
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│ Core Model Layer │
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│ - Editor (top-level state) │
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│ - Buffer (document model) │
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│ - PieceTable (text storage) │
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│ - UndoSystem (undo/redo) │
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│ - SwapManager (crash recovery) │
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└─────────────────────────────────────────┘
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```
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### Design Principles
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- **Frontend Independence**: Core editing logic is independent of UI.
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Frontends implement `Frontend`, `InputHandler`, and `Renderer`
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interfaces.
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- **Command Pattern**: All editing operations go through the command
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system, enabling consistent undo/redo and testing.
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- **Piece Table**: Efficient text storage using a piece table data
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structure that avoids copying large buffers.
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- **Lazy Materialization**: Text is materialized on-demand to minimize
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memory allocations.
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## Core Components
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### Editor (`Editor.h/.cc`)
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The top-level editor state container. Manages:
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- Multiple buffers
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- Editor modes (normal, k-command prefix, prompts)
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- Kill ring (clipboard history)
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- Universal argument state
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- Search state
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- Status messages
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- Swap file management
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**Key Insight**: Editor is primarily a state holder with many
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getter/setter pairs. It doesn't contain editing logic - that's in
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commands.
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### Buffer (`Buffer.h/.cc`)
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Represents an open document. Manages:
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- File I/O (open, save, external modification detection)
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- Cursor position and viewport offsets
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- Mark (selection start point)
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- Visual line mode state
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- Syntax highlighting integration
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- Undo system integration
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- Swap recording integration
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**Key Insight**: Buffer wraps a PieceTable and provides a higher-level
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interface. The nested `Buffer::Line` class is a legacy wrapper that has
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been largely phased out in favor of direct PieceTable operations.
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**Line Access APIs**: Buffer provides three ways to access line content:
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- `GetLineView(row)` - Zero-copy `string_view` (fastest, 11x faster than
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Rows())
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- `GetLineString(row)` - Returns `std::string` copy (1.7x faster than
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Rows())
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- `Rows()` - Materializes all lines into cache (legacy, avoid in new
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code)
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See `docs/BENCHMARKS.md` for detailed performance analysis and usage
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guidance.
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### PieceTable (`PieceTable.h/.cc`)
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The core text storage data structure. Provides:
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- Efficient insert/delete operations without copying entire buffer
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- Line-based queries (line count, get line, line ranges)
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- Position conversion (byte offset ↔ line/column)
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- Substring extraction
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- Search functionality
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- Automatic consolidation to prevent piece fragmentation
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**Key Insight**: PieceTable uses lazy materialization - the full text is
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only assembled when `Data()` is called. Most operations work directly on
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the piece list.
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### UndoSystem (`UndoSystem.h/.cc`, `UndoTree.h/.cc`, `UndoNode.h/.cc`)
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Implements undo/redo with a tree structure supporting:
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- Linear undo/redo
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- Branching history (future enhancement)
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- Checkpointing and compaction
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- Memory-efficient node pooling
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**Key Insight**: The undo system records operations at the PieceTable
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level, not at the command level.
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### Command System (`Command.h/.cc`)
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All editing operations are implemented as commands:
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- File operations (save, open, close)
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- Navigation (move cursor, page up/down, word movement)
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- Editing (insert, delete, kill, yank)
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- Search and replace
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- Buffer management
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- Configuration (syntax, theme, font)
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**Key Insight**: `Command.cc` is currently a monolithic 5000-line file.
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This is the biggest maintainability challenge in the codebase.
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### Frontend Abstraction
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Three interfaces define the frontend contract:
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- **Frontend** (`Frontend.h`): Top-level lifecycle (Init/Step/Shutdown)
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- **InputHandler** (`InputHandler.h`): Converts UI events to commands
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- **Renderer** (`Renderer.h`): Draws the editor state
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Implementations:
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- **Terminal**: ncurses-based (`TerminalFrontend`,
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`TerminalInputHandler`, `TerminalRenderer`)
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- **ImGui**: Dear ImGui-based (`ImGuiFrontend`, `ImGuiInputHandler`,
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`ImGuiRenderer`)
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- **Qt**: Qt-based (`QtFrontend`, `QtInputHandler`, `QtRenderer`)
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- **Test**: Programmatic testing (`TestFrontend`, `TestInputHandler`,
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`TestRenderer`)
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## Code Organization
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### Directory Structure
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```
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kte/
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├── *.h, *.cc # Core implementation (root level)
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├── main.cc # Entry point
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├── docs/ # Documentation
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│ ├── ke.md # Original ke editor reference (keybindings)
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│ ├── swap.md # Swap file design
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│ ├── syntax.md # Syntax highlighting
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│ ├── themes.md # Theme system
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│ └── plans/ # Design documents
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├── tests/ # Test suite
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│ ├── Test.h # Minimal test framework
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│ ├── TestRunner.cc # Test runner
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│ └── test_*.cc # Individual test files
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├── syntax/ # Syntax highlighting engines
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├── fonts/ # Embedded fonts for GUI
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├── themes/ # Color themes
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└── ext/ # External dependencies (imgui)
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```
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### File Naming Conventions
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- Headers: `ComponentName.h`
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- Implementation: `ComponentName.cc`
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- Tests: `test_feature_name.cc`
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### Key Files by Size
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Large files that may need attention:
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- `Command.cc` (4995 lines) - **Needs refactoring**: Consider splitting
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into logical groups
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- `Swap.cc` (1300 lines) - Crash recovery system (migrated to direct
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PieceTable operations)
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- `QtFrontend.cc` (985 lines) - Qt integration
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- `ImGuiRenderer.cc` (930 lines) - ImGui rendering
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- `PieceTable.cc` (800 lines) - Core data structure
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- `Buffer.cc` (763 lines) - Document model
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## Building and Testing
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### Build System
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kte uses CMake with multiple build profiles:
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```bash
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# Debug build (terminal only)
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cmake -S . -B cmake-build-debug -DCMAKE_BUILD_TYPE=Debug
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cmake --build cmake-build-debug
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# Release build with GUI
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cmake -S . -B cmake-build-release -DCMAKE_BUILD_TYPE=Release -DBUILD_GUI=ON
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cmake --build cmake-build-release
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# Build specific target
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cmake --build cmake-build-debug --target kte_tests
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```
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### CMake Targets
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- `kte` - Terminal editor executable
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- `kge` - GUI editor executable (when `BUILD_GUI=ON`)
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- `kte_tests` - Test suite
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- `imgui` - Dear ImGui library (when `BUILD_GUI=ON`)
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### Running Tests
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```bash
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# Build and run all tests
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cmake --build cmake-build-debug --target kte_tests && ./cmake-build-debug/kte_tests
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# Run tests with verbose output
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./cmake-build-debug/kte_tests
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```
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### Test Organization
|
||||
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||||
The test suite uses a minimal custom framework (`Test.h`):
|
||||
|
||||
```cpp
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TEST(TestName) {
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||||
// Test body
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||||
ASSERT_EQ(actual, expected);
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||||
ASSERT_TRUE(condition);
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||||
EXPECT_TRUE(condition); // Non-fatal
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||||
}
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||||
```
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||||
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||||
Test files by category:
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||||
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||||
- **Core Data Structures**:
|
||||
- `test_piece_table.cc` - PieceTable operations, line indexing,
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random edits
|
||||
- `test_buffer_rows.cc` - Buffer row operations
|
||||
- `test_buffer_io.cc` - File I/O (open, save, SaveAs)
|
||||
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||||
- **Editing Operations**:
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||||
- `test_command_semantics.cc` - Command execution
|
||||
- `test_kkeymap.cc` - Keybinding system
|
||||
- `test_visual_line_mode.cc` - Visual line selection
|
||||
|
||||
- **Search and Replace**:
|
||||
- `test_search.cc` - Search functionality
|
||||
- `test_search_replace_flow.cc` - Interactive search/replace
|
||||
|
||||
- **Text Reflow**:
|
||||
- `test_reflow_paragraph.cc` - Paragraph reformatting
|
||||
- `test_reflow_indented_bullets.cc` - Indented list handling
|
||||
|
||||
- **Undo System**:
|
||||
- `test_undo.cc` - Undo/redo operations
|
||||
|
||||
- **Swap Files** (Crash Recovery):
|
||||
- `test_swap_recorder.cc` - Recording operations
|
||||
- `test_swap_writer.cc` - Writing swap files
|
||||
- `test_swap_replay.cc` - Replaying operations
|
||||
- `test_swap_recovery_prompt.cc` - Recovery UI
|
||||
- `test_swap_cleanup.cc` - Cleanup logic
|
||||
- `test_swap_git_editor.cc` - Git editor integration
|
||||
|
||||
- **Performance and Migration**:
|
||||
- `test_benchmarks.cc` - Performance benchmarks for core operations
|
||||
- `test_migration_coverage.cc` - Buffer::Line migration validation
|
||||
|
||||
- **Integration Tests**:
|
||||
- `test_daily_workflows.cc` - Real-world editing scenarios
|
||||
- `test_daily_driver_harness.cc` - Workflow test infrastructure
|
||||
|
||||
**Total**: 98 tests across 22 test files. See `docs/BENCHMARKS.md` for
|
||||
performance benchmark results.
|
||||
|
||||
### Writing Tests
|
||||
|
||||
When adding new functionality:
|
||||
|
||||
1. **Add a test first** - Write a failing test that demonstrates the
|
||||
desired behavior
|
||||
2. **Use descriptive names** - Test names should explain what's being
|
||||
validated
|
||||
3. **Test edge cases** - Empty buffers, EOF, beginning of file, etc.
|
||||
4. **Use TestFrontend** - For integration tests, use the programmatic
|
||||
test frontend
|
||||
|
||||
Example test structure:
|
||||
|
||||
```cpp
|
||||
TEST(Feature_Behavior_Scenario) {
|
||||
// Setup
|
||||
Buffer buf;
|
||||
buf.insert_text(0, 0, "test content\n");
|
||||
|
||||
// Exercise
|
||||
buf.delete_text(0, 5, 4);
|
||||
|
||||
// Verify
|
||||
ASSERT_EQ(buf.GetLineString(0), std::string("test\n"));
|
||||
}
|
||||
```
|
||||
|
||||
## Making Changes
|
||||
|
||||
### Development Workflow
|
||||
|
||||
1. **Understand the change scope**:
|
||||
- Pure UI change? → Modify frontend only
|
||||
- New editing operation? → Add command in `Command.cc`
|
||||
- Core data structure? → Modify `PieceTable` or `Buffer`
|
||||
|
||||
2. **Find relevant code**:
|
||||
- Use `git grep` or IDE search to find similar functionality
|
||||
- Check `Command.cc` for existing command patterns
|
||||
- Look at tests to understand expected behavior
|
||||
|
||||
3. **Make the change**:
|
||||
- Follow existing code style (see below)
|
||||
- Add or update tests
|
||||
- Update documentation if needed
|
||||
|
||||
4. **Test thoroughly**:
|
||||
- Run the full test suite
|
||||
- Manually test in both terminal and GUI (if applicable)
|
||||
- Test edge cases (empty files, large files, EOF, etc.)
|
||||
|
||||
### Common Pitfalls
|
||||
|
||||
- **Don't modify `Buffer::Rows()` directly** - Use the PieceTable API (
|
||||
`insert_text`, `delete_text`, etc.) to ensure undo and swap recording
|
||||
work correctly.
|
||||
- **Prefer efficient line access** - Use `GetLineView()` for read-only
|
||||
access (11x faster than `Rows()`), or `GetLineString()` when you need
|
||||
a copy. Avoid `Rows()` in new code.
|
||||
- **Remember to invalidate caches** - If you modify PieceTable
|
||||
internals, ensure line index and materialization caches are
|
||||
invalidated.
|
||||
- **Cursor visibility** - After editing operations, call
|
||||
`ensure_cursor_visible()` to update viewport offsets.
|
||||
- **Undo boundaries** - Use `buf.Undo()->BeginGroup()` and `EndGroup()`
|
||||
to group related operations.
|
||||
- **GetLineView() lifetime** - The returned `string_view` is only valid
|
||||
until the next buffer modification. Use immediately or copy to
|
||||
`std::string`.
|
||||
|
||||
## Code Style
|
||||
|
||||
kte uses C++20 with these conventions:
|
||||
|
||||
### Naming
|
||||
|
||||
- **Classes/Structs**: `PascalCase` (e.g., `PieceTable`, `Buffer`)
|
||||
- **Functions/Methods**: `PascalCase` (e.g., `GetLine`, `Insert`)
|
||||
- **Variables**: `snake_case` with trailing underscore for members (
|
||||
e.g., `total_size_`, `line_index_`)
|
||||
- **Constants**: `snake_case` or `UPPER_CASE` depending on context
|
||||
- **Private members**: Trailing underscore (e.g., `pieces_`, `dirty_`)
|
||||
|
||||
### Formatting
|
||||
|
||||
- **Indentation**: Tabs (width 8 in most files, but follow existing
|
||||
style)
|
||||
- **Braces**: Opening brace on same line for functions, control
|
||||
structures
|
||||
- **Line length**: No strict limit, but keep reasonable (~100-120 chars)
|
||||
- **Includes**: Group by category (system, external, project) with blank
|
||||
lines between
|
||||
|
||||
### Comments
|
||||
|
||||
- **File headers**: Brief description of the file's purpose
|
||||
- **Function comments**: Explain non-obvious behavior, not what the code
|
||||
obviously does
|
||||
- **Inline comments**: Explain *why*, not *what*
|
||||
- **TODO comments**: Use `TODO:` prefix for future work
|
||||
|
||||
Example:
|
||||
|
||||
```cpp
|
||||
// Consolidate small pieces to prevent fragmentation.
|
||||
// This is a heuristic: we only consolidate when piece count exceeds
|
||||
// a threshold, and we cap the bytes processed per consolidation run.
|
||||
void maybeConsolidate() {
|
||||
if (pieces_.size() < piece_limit_)
|
||||
return;
|
||||
// ... implementation
|
||||
}
|
||||
```
|
||||
|
||||
## Common Tasks
|
||||
|
||||
### Adding a New Command
|
||||
|
||||
1. **Define the command function** in `Command.cc`:
|
||||
|
||||
```cpp
|
||||
bool cmd_my_feature(CommandContext &ctx) {
|
||||
Editor &ed = ctx.ed;
|
||||
Buffer *buf = ed.CurrentBuffer();
|
||||
if (!buf) return false;
|
||||
|
||||
// Implement the command
|
||||
buf->insert_text(buf->Cury(), buf->Curx(), "text");
|
||||
|
||||
return true;
|
||||
}
|
||||
```
|
||||
|
||||
2. **Register the command** in `InstallDefaultCommands()`:
|
||||
|
||||
```cpp
|
||||
CommandRegistry::Register({
|
||||
CommandId::MyFeature,
|
||||
"my-feature",
|
||||
"Description of what it does",
|
||||
cmd_my_feature
|
||||
});
|
||||
```
|
||||
|
||||
3. **Add keybinding** in the appropriate `InputHandler` (e.g.,
|
||||
`TerminalInputHandler.cc`).
|
||||
|
||||
4. **Write tests** in `tests/test_command_semantics.cc` or a new test
|
||||
file.
|
||||
|
||||
### Adding a New Frontend
|
||||
|
||||
1. **Implement the three interfaces**:
|
||||
- `Frontend` - Lifecycle management
|
||||
- `InputHandler` - Event → Command translation
|
||||
- `Renderer` - Draw the editor state
|
||||
|
||||
2. **Study existing implementations**:
|
||||
- `TerminalFrontend` - Simplest, good starting point
|
||||
- `ImGuiFrontend` - More complex, shows GUI patterns
|
||||
|
||||
3. **Register in `main.cc`** to make it selectable.
|
||||
|
||||
### Modifying the PieceTable
|
||||
|
||||
The PieceTable is performance-critical. When making changes:
|
||||
|
||||
1. **Understand the piece list** - Each piece references a range in
|
||||
either `original_` or `add_` buffer
|
||||
2. **Maintain invariants**:
|
||||
- `total_size_` must match sum of piece lengths
|
||||
- Line index must be invalidated on content changes
|
||||
- Version must increment on mutations
|
||||
3. **Test thoroughly** - Use `test_piece_table.cc` random edit test as a
|
||||
reference model
|
||||
4. **Profile if needed** - Large file performance is a key goal
|
||||
|
||||
### Adding Syntax Highlighting
|
||||
|
||||
1. **Create a new highlighter** in `syntax/` directory:
|
||||
- Inherit from `HighlighterEngine`
|
||||
- Implement `HighlightLine()` method
|
||||
|
||||
2. **Register in `HighlighterRegistry`** (
|
||||
`syntax/HighlighterRegistry.cc`)
|
||||
|
||||
3. **Add file extension mapping** in the registry
|
||||
|
||||
4. **Test with sample files** of that language
|
||||
|
||||
### Debugging Tips
|
||||
|
||||
- **Use the test frontend** - Write a test that reproduces the issue
|
||||
- **Enable assertions** - Build in Debug mode
|
||||
- **Check swap files** - Look in `/tmp/kte-swap-*` for recorded
|
||||
operations
|
||||
- **Print debugging** - Use `std::cerr` (stdout is used by ncurses)
|
||||
- **GDB/LLDB** - Standard debuggers work fine with kte
|
||||
|
||||
## Getting Help
|
||||
|
||||
- **Read the code** - kte is designed to be understandable; follow the
|
||||
data flow
|
||||
- **Check existing tests** - Tests often show how to use APIs correctly
|
||||
- **Look at git history** - See how similar features were implemented
|
||||
- **Read design docs** - Check `docs/plans/` for design rationale
|
||||
|
||||
## Future Improvements
|
||||
|
||||
Areas where the codebase could be improved:
|
||||
|
||||
1. **Split Command.cc** - Break into logical groups (editing,
|
||||
navigation, file ops, etc.)
|
||||
2. **Complete Buffer::Line migration** - A few legacy editing functions
|
||||
in Command.cc still use `Buffer::Rows()` directly (see lines 86-90
|
||||
comment)
|
||||
3. **Add more inline documentation** - Especially for complex algorithms
|
||||
4. **Improve test coverage** - Add more edge case tests (current: 98
|
||||
tests)
|
||||
5. **Performance profiling** - Continue monitoring performance with
|
||||
benchmark suite
|
||||
6. **API documentation** - Consider adding Doxygen-style comments
|
||||
|
||||
---
|
||||
|
||||
Welcome aboard! Start small, read the code, and don't hesitate to ask
|
||||
questions.
|
||||
Reference in New Issue
Block a user