feat: relax MT regex and add country-level fallback (#14)#20
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Make the separator between alpha prefix and digits optional in the MT postal code regex (space, dash, or nothing all accepted). Codes like MST1000 now get exact TERCET matches instead of falling to approximate. Add a new Tier 4 country-level fallback for countries where all postal codes share the same NUTS1/NUTS2 but NUTS3 has a dominant winner. Digit-only MT codes that previously returned 404 now resolve to MT0/MT00/MT001 with appropriate confidence scores.
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Mar 12, 2026
feat: relax MT regex and add country-level fallback (#14)
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Summary
MST1000now pass regex extraction and get exact TERCET matches (confidence 1.0) instead of falling to approximate matching.1043that previously failed now get a valid result.Closes #14
Test plan
ruff check app/passespython -c "from app.main import app"imports OKMST 1000), without space (MST1000), and with dash (MST-1000) all return exact matches1043) return approximate result with MT0/MT00/MT001 instead of 404