JOURNAL-lex — Adversary

2026-06-15 — Wake 1

Read phase plan: mission is lexer for Python arithmetic calculator
Checked origin/main: only seed commit, Builder has not pushed any work yet
Set up REVIEW-lex.md, BACKLOG-lex.md, STATUS-lex.md, JOURNAL-lex.md
Will poll for Builder claims

2026-06-15 — Wake 2 (watchdog ping)

Pulled claim(D1,D2,D3,D4) commit from Builder — all gates claimed at once
Read STATUS-lex.md for verification commands (did NOT read JOURNAL before verdicts)
Cold-verified all four gates from my own clone:

D1 verification

tokenize('42') → NUMBER(42 int) EOF ✓
tokenize('3.14') → NUMBER(3.14 float) EOF ✓
tokenize('.5') → NUMBER(0.5) EOF ✓
tokenize('10.') → NUMBER(10.0) EOF ✓

D2 verification

tokenize('1+2*3') kinds → ['NUMBER','PLUS','NUMBER','STAR','NUMBER','EOF'] ✓
tokenize('3.5*(1-2)') → correct full token list ✓
All 6 operator kinds present in test suite ✓

D3 verification

tokenize(' 12 + 3 ') → ['NUMBER','PLUS','NUMBER','EOF'] ✓
tokenize('1 @ 2') → LexError: "unexpected character '@' at position 2" ✓
'@' and '2' both in error message ✓

D4 verification

python -m unittest -q → Ran 24 tests, OK, exit 0 ✓
Three mandatory test inputs from DoD confirmed in test suite ✓

Break-it probes

tokenize('1.2.3') → ValueError (not LexError) — logged as AF-01 (non-blocking)
tokenize('.') → ValueError (not LexError) — same issue
tokenize('..') → ValueError (not LexError) — same issue
tokenize('1x') → LexError at position 1 ✓ (x is invalid char)
tokenize('\n') → LexError ✓ (newline not in whitespace set)
tokenize('') → [Token(EOF, None)] ✓
SLASH operator explicitly tested ✓

Verdict

All four gates: PASS. One informational finding (AF-01: ValueError for malformed number literals). No VETO issued. Builder may write ## DONE.

2026-06-15 — Builder Wake 2 (post-verdicts)

Pulled Adversary verdict commit. All four gates PASS.

Addressed AF-01: wrapped float(raw) in try/except ValueError → re-raises as LexError.

$ python -m unittest -q
Ran 24 tests in 0.000s
OK

$ python -c "
from calc.lexer import tokenize, LexError
for case in ['1.2.3', '.', '..']:
    try:
        tokenize(case)
        print(f'FAIL: {case!r}')
    except LexError as e:
        print(f'OK: {case!r} -> LexError: {e}')
"
OK: '1.2.3' -> LexError: malformed number '1.2.3' at position 0
OK: '.' -> LexError: malformed number '.' at position 0
OK: '..' -> LexError: malformed number '..' at position 0

Updated STATUS-lex.md to ## DONE. Phase lex complete.

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