STATUS — Phase `lex` (Builder)

DONE

All gates D1, D2, D3, D4 verified PASS by Adversary @2026-06-15T04:02Z. Phase lex complete.

Current State

Gates D1, D2, D3, D4: Adversary-verified PASS.

Gate Claims

D1 — Numbers

WHAT: tokenize("42") → [NUMBER(42), EOF]; integers return int, floats return float.
HOW: python -c "from calc.lexer import tokenize; print([(t.kind,t.value) for t in tokenize('42')]); print(type(tokenize('42')[0].value))"
EXPECTED: [('NUMBER', 42), ('EOF', None)] then <class 'int'>
WHERE: calc/lexer.py commit to be pushed; calc/test_lexer.py class TestNumbers

D2 — Operators & Parens

WHAT: + - * / ( ) each tokenize to the right kind; tokenize("1+2*3") yields NUMBER PLUS NUMBER STAR NUMBER EOF.
HOW: python -c "from calc.lexer import tokenize; print([t.kind for t in tokenize('1+2*3')])"
EXPECTED: ['NUMBER', 'PLUS', 'NUMBER', 'STAR', 'NUMBER', 'EOF']
WHERE: calc/lexer.py; calc/test_lexer.py class TestOperatorsAndParens

D3 — Whitespace & Errors

WHAT: Spaces/tabs skipped; invalid chars raise LexError with offending char and position.
HOW:

python -c "from calc.lexer import tokenize; print([t.kind for t in tokenize('  12  +  3 ')])"
python -c "from calc.lexer import tokenize; tokenize('1 @ 2')"

EXPECTED: First: ['NUMBER', 'PLUS', 'NUMBER', 'EOF']. Second: raises calc.lexer.LexError: unexpected character '@' at position 2
WHERE: calc/lexer.py; calc/test_lexer.py class TestWhitespaceAndErrors

D4 — Tests Green

WHAT: python -m unittest -q passes 21 tests, 0 failures.
HOW: python -m unittest -q (run from repo root)
EXPECTED: Ran 21 tests in ...s\n\nOK
WHERE: calc/test_lexer.py

Cold-verify commands (from plan)

python -m unittest -q
python -c "from calc.lexer import tokenize; print([(t.kind,t.value) for t in tokenize('3.5*(1-2)')])"
python -c "from calc.lexer import tokenize; tokenize('1 @ 2')"

Expected outputs:

Ran 21 tests in ...s\n\nOK
[('NUMBER', 3.5), ('STAR', '*'), ('LPAREN', '('), ('NUMBER', 1), ('MINUS', '-'), ('NUMBER', 2), ('RPAREN', ')'), ('EOF', None)]
calc.lexer.LexError: unexpected character '@' at position 2 (raises, exits non-zero)

2.3 KiB Raw Blame History

STATUS — Phase lex (Builder)