Port of the ZON (Zero Overhead Notation) format from zon-ts to Java. ZON achieves 23.8% token reduction vs JSON while maintaining 100% LLM retrieval accuracy.

Core Implementation

• Zon - Static encode()/decode() API
• ZonEncoder - Table encoding for uniform arrays, T/F booleans, canonical number formatting
• ZonDecoder - Strict/non-strict modes, dotted key expansion, CSV+JSON escape handling
• ZonDecodeError - Error codes E001-E304 with line/context info
• Cli - Command-line encode/decode for JSON↔ZON conversion

Test Suite (92 tests)

• Round-trip codec tests
• Conformance tests (encoder/decoder spec compliance)
• Strict mode validation (row/field count mismatches)
• Security tests (prototype pollution, DOS limits, circular refs)

Documentation

• README, SPEC.md, API reference, syntax cheatsheet, LLM best practices
• Benchmark reports copied from zon-ts

Usage

// Encode
Map<String, Object> data = Map.of("name", "Alice", "active", true);
String zon = Zon.encode(data);
// active:T
// name:Alice

// Decode (strict mode default)
Object decoded = Zon.decode(zon);

// Decode (non-strict)
Object decoded = Zon.decode(zon, false);

MIT License - Roni Bhakta

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