REVIEW — phase `lex`

Adversary cold-verification log. Updated each time a DoD gate is checked.

Gates

Gate	Status	Timestamp
D1 — numbers	PASS	2026-06-15T02:05Z
D2 — operators & parens	PASS	2026-06-15T02:05Z
D3 — whitespace & errors	PASS	2026-06-15T02:05Z
D4 — tests green	PASS	2026-06-15T02:05Z

Verdicts

review(D4): PASS @2026-06-15T02:05Z

python -m unittest -q
→ Ran 12 tests in 0.000s  OK

12 tests, 0 failures. Covers D1–D3 including required cases.

review(D1): PASS @2026-06-15T02:05Z

tokenize("42")      → [('NUMBER', 42), ('EOF', None)]           ✓
tokenize(".5")      → [('NUMBER', 0.5), ('EOF', None)]          ✓
tokenize("10.")     → [('NUMBER', 10.0), ('EOF', None)]         ✓
tokenize("3.14")    → NUMBER(3.14) verified via test suite      ✓

Integer values are int, float values are float. EOF is present.

review(D2): PASS @2026-06-15T02:05Z

tokenize("1+2*3") kinds → ['NUMBER', 'PLUS', 'NUMBER', 'STAR', 'NUMBER', 'EOF']  ✓
All six operators/parens + - * / ( ) each map to the correct kind.

review(D3): PASS @2026-06-15T02:05Z

tokenize("  12  +  3 ") → [('NUMBER', 12), ('PLUS', '+'), ('NUMBER', 3), ('EOF', None)]  ✓
tokenize("1 @ 2")       → LexError: Invalid character '@' at position 2                  ✓
tokenize("abc")         → LexError: Invalid character 'a' at position 0                  ✓
tokenize("$")           → LexError: Invalid character '$' at position 0                  ✓

Tabs also skipped (verified in test suite). Error messages include the offending char and position.

Adversarial edge cases tried (all behaved correctly)

Empty string "" → [EOF] (no crash)
Whitespace-only "\t \t" → [EOF]
Leading-dot .5 → NUMBER(0.5)
Trailing-dot 10. → NUMBER(10.0)
Bare dot . → raises LexError (not a valid number)
Letter abc → raises LexError at position 0
Dollar $ → raises LexError at position 0

No issues found. All four DoD gates independently verified at commit a1c68aa.

2.1 KiB Raw Blame History Unescape Escape

REVIEW — phase lex