cadrumo.application.ledger.postal_shape_finding module¶

Say so when a party’s postal code field does not hold a postal code.

The free-text validator keeps whatever the reader put in the field, trimmed and otherwise untouched, and that permissiveness is deliberate: dropping an unreadable value would destroy the printed anchor the operator reviews, leaving them a blank field and nothing to correct it against. So an address line the reader lifted whole – "Calle Mayor 3, 28013 Madrid" – reaches the draft and the operator payload intact, under a label that says postal code, and reads as one until somebody looks.

Nothing unsafe follows from it, which is why this is a visibility problem rather than a correctness one: territorial_scope_for_spanish_postal_code() answers None for anything that is not five digits rather than defaulting to the peninsula, so an unreadable code costs an answer and never invents one.

The judgement is borrowed, not restated. Whether a code is readable is asked by handing it to that resolver and seeing whether it answers; whether the country already settled the territory is asked of territorial_scope_for_country(). Neither rule is spelled here. A second copy of “five digits” sitting upstream of the authority that owns it is the drift this module is placed to avoid, and it would be the weaker copy.

Why it does not fire on every non-numeric code. A British SW1A 1AA and a Dutch 1011 AB are correctly printed postal codes that are not five digits, and flagging them would refuse confirmation on a large, entirely legitimate population for no gain – every discrepancy kind blocks by construction. Alert fatigue is a real failure mode: a check that fires mostly on documents that are fine teaches an operator to clear it without reading, and then it is worth less than nothing on the one document that mattered.

So the question asked is not is this five digits but does this field being unreadable cost anything. The postal code is the SUB-national evidence, consulted only where the country did not settle the territory on its own. A party whose printed country resolves – any country but Spain – is already established, and its postal code is decorative. Spain deliberately resolves to no scope, because the State names the Member State while Canarias, Ceuta y Melilla and the peninsula stay undecided inside it; a party with no country printed is unsettled for the plainer reason. Those two are exactly the parties whose postal code was load-bearing, and exactly the ones this reports.