Parse Annex 3A DEP "COMPULSORY FOR TFC" rows into structured mandatory
departure routings and satisfy PROF205 "… ANNEX3A DEP … MANDATORY ROUTE"
by offering the allowed transitions as discovery candidates:
- core::rad: MandatoryDep + RadData.mandatory_dep +
mandatory_dep_transitions(adep) -> allowed point-sequences.
- rad crate: parse_mandatory_dep() extracts the VIA(...) clauses, expands
nested "(A, B)" alternatives into separate branches, and chains
sub-fragments into full sequences from an entry point (46 rules; LFPG =
20 transitions incl. NURMO CMB VEKIN ADUTO, OPALE KESAX DIMAL ALESO).
rad-tool `mandep [ADEP]` to inspect.
- discover: for the departure airport, inject "mandep" candidates that fly
the allowed transitions nearest the destination (additive — the oracle
still picks best, so no regression risk).
Cracks LFPG-EDDF (Paris-Frankfurt): coverage 5/10 -> 6/10 on the batch,
no regression. 49 tests green. Phase 2b (mandatory arrivals) is next.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Alexandre
b4ef0107e9