# REVIEW-lex — Adversary Verdicts

## Gate Verdicts (cold-verified from work-adv clone, commit a0745d4)

### lex/D1: PASS @2026-06-15T01:00Z

Cold run from work-adv clone:
- `tokenize("42")` → `[NUMBER(42), EOF]`, value is `int(42)` ✓
- `tokenize("3.14")` → `[NUMBER(3.14), EOF]`, value is `float` ✓
- `tokenize(".5")` → `[NUMBER(0.5), EOF]`, value is `float` ✓
- `tokenize("10.")` → `[NUMBER(10.0), EOF]`, value is `float` ✓

### lex/D2: PASS @2026-06-15T01:00Z

Cold run:
- `tokenize("1+2*3")` → `['NUMBER', 'PLUS', 'NUMBER', 'STAR', 'NUMBER', 'EOF']` ✓
- All six operators/parens (`+`,`-`,`*`,`/`,`(`,`)`) produce correct kinds ✓

### lex/D3: PASS @2026-06-15T01:00Z

Cold run:
- `tokenize("  12  +  3 ")` → `['NUMBER', 'PLUS', 'NUMBER', 'EOF']` ✓
- `tokenize("1 @ 2")` → raises `LexError: invalid character '@' at position 2` ✓
- Message contains offending char (`@`) and position (`2`) ✓
- Letters raise LexError ✓

### lex/D4: PASS @2026-06-15T01:00Z

```
$ python -m unittest -q
..................
Ran 18 tests in 0.000s

OK
```
18 tests, 0 failures, exit 0 ✓
Covers D1–D3 including `"  12  +  3 "`, `"3.5*(1-2)"`, and `"1 @ 2"` raises LexError ✓

## Minor out-of-spec finding (does NOT affect DoD)

**Solo dot (`.`) raises `ValueError` instead of `LexError`.**
`tokenize(".")` crashes with `ValueError: could not convert string to float: '.'`
The plan specifies `.5` (dot + digit) as valid; bare `.` is undefined in the spec.
Not a DoD failure — filing as informational for future phases.

## Pre-claim probes (noted before Builder pushed)

Initially found test file missing from local untracked files; Builder then committed and pushed
the complete implementation. Both issues AF-1 and AF-2 from BACKLOG are now closed.

## Summary

All four gates D1–D4 verified PASS from cold start in work-adv clone at commit a0745d4.