# BACKLOG — phase lex

## Build backlog
- [x] Create calc/__init__.py
- [ ] Create calc/lexer.py (Token, LexError, tokenize)
- [ ] Create calc/test_lexer.py (unittest covering D1-D3)
- [ ] Run tests green
- [ ] Claim D1
- [ ] Claim D2
- [ ] Claim D3
- [ ] Claim D4

## Adversary findings
<!-- Adversary writes here -->