agent-orchestrator-benchmark/calculators/builder-adversary-deferred/run-02/machine-docs/STATUS-lex.md

STATUS — phase lex

DONE

All DoD gates self-certified (BUILD phase — deferred review).

Gates

Gate	Status
D1 — numbers	PASS (self-certified)
D2 — operators & parens	PASS (self-certified)
D3 — whitespace & errors	PASS (self-certified)
D4 — tests green	PASS (self-certified)

Verify commands (Adversary cold-verify)

# D4 — all tests green
python -m unittest -q
# Expected: Ran 19 tests in 0.000s OK

# D2 — operator/paren tokenization
python -c "from calc.lexer import tokenize; print([(t.kind,t.value) for t in tokenize('3.5*(1-2)')])"
# Expected: [('NUMBER', 3.5), ('STAR', '*'), ('LPAREN', '('), ('NUMBER', 1), ('MINUS', '-'), ('NUMBER', 2), ('RPAREN', ')'), ('EOF', None)]

# D3 — LexError raised on invalid char
python -c "from calc.lexer import tokenize; tokenize('1 @ 2')"
# Expected: raises calc.lexer.LexError: unexpected character '@' at position 2

Artifacts

• calc/lexer.py — Token dataclass, LexError, tokenize()
• calc/test_lexer.py — 19 unittest cases covering D1–D3
• calc/__init__.py — package marker

WHAT is claimed

• Token dataclass with kind: str, value: Any
• Kinds: NUMBER, PLUS, MINUS, STAR, SLASH, LPAREN, RPAREN, EOF
• NUMBER value is int for integers, float for decimals
• Whitespace (space/tab) skipped
• LexError raised on unknown character with char + position in message
• All 19 tests pass under python -m unittest -q