Added #

• Initial release of TextCrypt package
• Core Architecture:
  • TextCodec abstract interface for all codecs
  • CodecPipeline class for chaining multiple codecs
• Built-in Codecs:
  • Base64Codec - Standard Base64 encoding/decoding
  • GzipCodec - GZip compression with configurable compression levels (0-9)
  • HexCodec - Hexadecimal encoding with uppercase/lowercase options
• Features:
  • Pure Dart implementation (Flutter-independent)
  • UTF-8 and ASCII support across all codecs
  • Comprehensive input validation for each codec
  • Meaningful error messages with specific codec failure information
  • Pipeline manipulation (add/remove codecs)
• Testing:
  • 100% test coverage for all codecs
  • Edge case testing (empty strings, invalid inputs, Unicode characters)
  • Performance testing and validation
  • Pipeline integration tests
• Documentation:
  • Complete API documentation with DartDoc comments
  • Comprehensive README with examples
  • Usage examples for individual codecs and pipelines
  • Real-world scenario demonstrations

Security #

• Input validation to prevent malformed data processing
• Safe error handling to prevent information leakage
• No external dependencies to minimize attack surface

Future Planned Features #

• Additional codecs (URL encoding, HTML entities)
• Performance optimizations for large data sets
• Streaming codec support for large files

• Plugin system for dynamic codec registration
• Custom codec factory and discovery mechanism
• Advanced pipeline features (conditional encoding, branching)

• Breaking changes for improved API consistency
• Advanced compression algorithms (Brotli, LZ4)
• Async codec support for non-blocking operations