Specification Compliance

TokenOrientedObjectNotation.jl is fully compliant with the TOON Specification v2.0.

Validation Status

✅ 100% Compliant - All 1750 tests passing

Validation Date: November 16, 2025
Test Suite: 1750 comprehensive tests
Compliance Report: COMPLIANCEVALIDATIONREPORT.md

Requirements Coverage

All 15 normative requirements from the specification are fully implemented and tested.

1. Data Model Compliance ✅

Encodes complete JSON data model
Objects, arrays, strings, numbers, booleans, null
Proper type normalization (NaN, Infinity → null, -0 → 0)

Tests: 15 test cases

2. Number Formatting and Precision ✅

Canonical decimal form (no exponents)
No leading zeros except "0"
No trailing fractional zeros
Integer form when fractional part is zero
Proper handling of very large/small numbers

Tests: 14 test cases

3. String Escaping and Quoting ✅

Five valid escape sequences: \\, \", \n, \r, \t
Complete quoting rules:
- Empty strings
- Whitespace
- Reserved literals (true, false, null)
- Numeric-like strings
- Special characters
- Delimiter-aware quoting

Tests: 20 test cases

4. Array Header Syntax ✅

Proper bracket notation: [length]:
Delimiter symbols: ,, \t, |
Field lists for tabular arrays: {field1,field2}
Inline tabular arrays: [length]{fields}: values

Tests: 95 test cases

5. Object Encoding and Decoding ✅

Key-value pairs with colons
Proper indentation
Nested objects
Empty objects
Key validation

Tests: 84 test cases

6. Array Format Selection ✅

Inline format for primitive arrays
Tabular format for uniform objects
List format for mixed content
Arrays of arrays
Proper format detection

Tests: 103 test cases

7. Tabular Array Format ✅

Field names from first object's keys
One row per object at depth +1
Rows use active delimiter
Delimiter scoping
Row width validation
Row count validation

Tests: 98 test cases

8. Delimiter Scoping and Quoting ✅

Document delimiter (comma by default)
Active delimiter from array headers
Proper scoping for nested arrays
Delimiter-aware quoting
All three delimiters supported

Tests: 73 test cases

9. Indentation and Whitespace ✅

Consistent spaces per level
No tabs for indentation
Exactly one space after colons
No trailing spaces or newlines
Strict mode validation

Tests: 73 test cases

10. Strict Mode Validation ✅

All §14 error conditions implemented:

Array count mismatch (inline, list, tabular)
Row width mismatch
Missing colons
Invalid escape sequences
Unterminated strings
Indentation errors (multiples, tabs)
Blank lines inside arrays
Path expansion conflicts

Tests: 95 test cases

11. Root Form Detection ✅

Root array (first line is array header)
Single primitive
Root object (default)
Empty document handling

Tests: 48 test cases

12. Objects as List Items ✅

Proper depth handling
Empty objects as list items
Nested objects as list items
Mixed list items
Deeply nested structures

Tests: 65 test cases

13. Key Folding (Optional) ✅

Safe mode (identifier keys only)
Depth limiting
Proper dotted key generation
Works with arrays
Round-trip compatible

Tests: 82 test cases

14. Path Expansion (Optional) ✅

Safe mode (identifier segments only)
Deep merge for overlapping paths
Conflict detection
Strict vs non-strict behavior
Round-trip compatible with key folding

Tests: 55 test cases

15. Conformance and Options ✅

All encoding options work correctly
All decoding options work correctly
Option combinations tested
Default values validated

Tests: 80 test cases

Additional Test Coverage

Round-trip Testing ✅

Ensures encode/decode preserves values:

All primitive types
All object structures
All array formats
Complex nested structures
Special characters and escape sequences

Tests: 69 test cases

Determinism Testing ✅

Ensures consistent output:

Same input produces same output
Multiple encodings are identical
Idempotence verified
Options produce consistent results

Tests: 24 test cases

Edge Cases ✅

Comprehensive edge case coverage:

Empty values
Deeply nested structures (10+ levels)
Large arrays (1000+ elements)
Special characters
Numeric boundaries
Whitespace preservation

Tests: 75 test cases

Specification Examples ✅

All examples from the specification:

Basic examples
Number formatting examples
String quoting examples
Array header examples
Delimiter examples
All feature demonstrations

Tests: 79 test cases

Error Conditions ✅

All §14 error scenarios:

Every error type tested
Line numbers in error messages
Strict vs non-strict behavior
Clear error messages

Tests: 57 test cases

Test Suite Summary

Category	Tests	Status
Requirements (15 categories)	900+	✅ All Pass
Round-trip Testing	69	✅ All Pass
Determinism Testing	24	✅ All Pass
Edge Cases	75	✅ All Pass
Specification Examples	79	✅ All Pass
Error Conditions	57	✅ All Pass
Integration Tests	546	✅ All Pass
Total	1750	✅ All Pass