agent-orchestrator-benchmark/calculators/builder-solo/run-03/machine-docs/JOURNAL-parse.md

JOURNAL-parse.md

2026-06-15

Build

• Read phase plan from /home/loops/project-orchestrator/projects/agent-orchestrator-benchmark/plans/calc/parse.md
• Examined existing calc/lexer.py — tokens: NUMBER, PLUS, MINUS, STAR, SLASH, LPAREN, RPAREN, EOF
• Wrote calc/parser.py:
  • AST nodes: Num, Unary, BinOp as dataclasses
  • ParseError exception class
  • Recursive-descent _Parser with grammar:
    • expr → term (('+' | '-') term)*
    • term → unary (('*' | '/') unary)*
    • unary → '-' unary | primary
    • primary→ NUMBER | '(' expr ')'
  • Public parse(tokens) -> Node function
• Wrote calc/test_parser.py with 46 tests across 6 test classes covering D1–D5

Verification

• Ran python -m unittest -q → 46 tests, 0 failures, 0 errors
• Ran plan's cold-verify commands — all match expected output
• Verified all D1–D5 gates with explicit assertions

Commit

• feat: add recursive-descent parser with AST nodes and unittest suite (phase parse) — pushed to main