big5_utf8_converter

feat: add Big5Encoder (Unicode→Big5), bump to 1.2.0

- Big5Encoder mirrors Big5Decoder via a lazy reverse lookup over the
existing mapping table; encode() throws on unmapped chars, encodeLossy()
skips them.
- Round-trip + known-byte + ASCII tests.

Features

• Add Big5Encoder (Converter<String, List<int>>): encode a Unicode string to Big5 bytes — the inverse of Big5Decoder. ASCII (<= 0x7E) is emitted as a single byte; other characters use a lazily-built reverse lookup over the existing mapping table.
• encode(s) throws FormatException on a character with no Big5 mapping; encodeLossy(s) drops such characters instead.

• Optimize package with pana recommendations

• Remove dart:io dependency to improve portability

Features

• Remove dart:io dependency to improve portability

• First Release

Added

• Initial release of the big5_utf8_converter package.
• Implemented Big5Decoder class for converting Big5 encoded text to UTF-8.
• Support for loading custom mapping data from files.
• Efficient lookup table implementation for fast conversion.
• Comprehensive unit tests to ensure reliability.
• Option to use pre-generated mapping data or load from a file.
• Handling of invalid and incomplete Big5 sequences with customizable unknown character replacement.

Features

• Convert Big5 encoded byte lists to UTF-8 strings.
• Support for mixed ASCII and Big5 content.
• Optional stripping of whitespace from conversion results.
• Flexible API allowing for various use cases and integration scenarios.