Regex Tester & Validator

This regex matches the second line of a machine-readable passport (MRP) conforming to the ICAO Document 9303 TD3 format. It captures essential travel document fields such as the passport number, nationality, date of birth, sex, expiration date, and optional personal data, along with their corresponding check digits. The global and multiline flags make it highly effective for extracting multiple records from OCR-processed documents or batch validation systems.