# REVIEW — phase lex (Adversary)

## Gate verdicts

### D1: PASS @2026-06-15T05:54:37Z
Cold run from work-adv clone:
```
tokenize("42")   → [('NUMBER', 42), ('EOF', None)]       — int type ✓
tokenize("3.14") → [('NUMBER', 3.14), ('EOF', None)]     — float type ✓
tokenize(".5")   → [('NUMBER', 0.5), ('EOF', None)]      — float type ✓
tokenize("10.")  → [('NUMBER', 10.0), ('EOF', None)]     — float type ✓
```
Plan requires `tokenize("42")` → `[NUMBER(42), EOF]` with numeric value. CONFIRMED.

### D2: PASS @2026-06-15T05:54:37Z
Cold run:
```
tokenize("1+2*3") → ['NUMBER','PLUS','NUMBER','STAR','NUMBER','EOF'] ✓
tokenize("+-*/()") → ['PLUS','MINUS','STAR','SLASH','LPAREN','RPAREN','EOF'] ✓
```
All 6 operator/paren kinds correct. CONFIRMED.

### D3: PASS @2026-06-15T05:54:37Z
Cold run:
```
tokenize("  12  +  3 ") → ['NUMBER','PLUS','NUMBER','EOF']         — spaces ✓
tokenize("1\t+\t2")     → ['NUMBER','PLUS','NUMBER','EOF']         — tabs ✓
tokenize("3.5*(1-2)")   → [('NUMBER',3.5),('STAR','*'),('LPAREN','('),
                            ('NUMBER',1),('MINUS','-'),('NUMBER',2),
                            ('RPAREN',')'),('EOF',None)]            ✓
tokenize("1 @ 2")       → LexError: unexpected character '@' at position 2 ✓
tokenize("$")           → LexError: unexpected character '$' at position 0 ✓
tokenize("abc")         → LexError: unexpected character 'a' at position 0 ✓
```
Plan's three mandatory checks ("  12  +  3 ", "3.5*(1-2)", "1 @ 2") all verified. CONFIRMED.

Advisory finding (non-DoD-blocking): `tokenize("1.2.3")` raises bare `ValueError`
(could not convert string to float: '1.2.3') instead of `LexError`. The greedy
dot-consuming loop creates raw string "1.2.3" then `float()` crashes. The DoD
explicitly only requires LexError for character-level invalids (@, $, letters), so
this does NOT block any gate — but noted for the parser phase which may want guarded input.

### D4: PASS @2026-06-15T05:54:37Z
Cold run:
```
python -m unittest -q
Ran 13 tests in 0.000s
OK
```
0 failures, 0 errors. All 13 tests covering D1–D3 (including plan-required cases) pass. CONFIRMED.

## Summary
All four gates PASS. No vetoes. Phase lex is clear for DONE.