cpp-naming-check

# C++ Naming Convention Checker Verify names follow Google C++ Style Guide conventions. ## Naming Rules Quick Check | Entity | Convention | Pattern | Examples | |--------|------------|---------|----------| | Files | lowercase + `_` or `-` | `snake_case.cc` | `my_class.cc`, `http-parser.h` | | Classes | PascalCase | `[A-Z][a-zA-Z0-9]*` | `MyClass`, `UrlParser` | | Structs | PascalCase | `[A-Z][a-zA-Z0-9]*` | `Point`, `HttpRequest` | | Type aliases | PascalCase | `[A-Z][a-zA-Z0-9]*` | `DataMap`, `StringList` | | Enums | PascalCase | `[A-Z][a-zA-Z0-9]*` | `ErrorCode`, `State` | | Enumerators | kPascalCase | `k[A-Z][a-zA-Z0-9]*` | `kOk`, `kNotFound` | | Functions | PascalCase | `[A-Z][a-zA-Z0-9]*` | `ProcessData()`, `GetValue()` | | Accessors | snake_case | `[a-z][a-z0-9_]*` | `count()`, `set_count()` | | Variables | snake_case | `[a-z][a-z0-9_]*` | `table_name`, `num_items` | | Class members | snake_case_ | `[a-z][a-z0-9_]*_` | `value_`, `data_map_` | | Struct members | snake_case | `[a-z][a-z0-9_]*` | `width`, `height` | | Constants | kPascalCase | `k[A-Z][a-zA-Z0-9]*` | `kMaxSize`, `kPi` | | Macros | UPPER_CASE | `[A-Z][A-Z0-9_]*` | `MY_MACRO`, `DEBUG_LOG` | | Namespaces | snake_case | `[a-z][a-z0-9_]*` | `my_project`, `internal` | | Template params | Varies | Type=`T`, value=`n` | `T`, `InputIterator`, `N` | ## Common Mistakes ### ❌ Wrong → ✅ Correct ```cpp // Classes class myClass; → class MyClass; class HTTPParser; → class HttpParser; // Treat acronyms as words // Variables int TableName; → int table_name; int tablename; → int table_name; // Use underscores // Class members int value; → int value_; // Trailing underscore int m_value; → int value_; // No Hungarian notation // Functions void process_data(); → void ProcessData(); void getValue(); → void GetValue(); // Or get_value() if accessor // Constants const int MAX_SIZE; → const int kMaxSize; const int maxSize; → const int kMaxSize; // Enumerators enum { ERROR_OK }; → enum { kErrorOk }; enum { Ok }; → enum { kOk }; // Macros (must be UPPER_CASE with prefix) #define DEBUG → #define MYPROJECT_DEBUG ``` ## Abbreviations - **OK**: Listed in Wikipedia or universally known (`i`, `n`, `id`, `url`) - **Capitalize as word**: `StartRpc()` not `StartRPC()` - **Don't delete letters**: `customer` not `cstmr` ## Check Process 1. Identify the entity type (class, function, variable, etc.) 2. Apply the corresponding naming rule 3. Check for consistency with surrounding code 4. Flag any Hungarian notation or other outdated styles