Giovanni Cappellotto 1052914cb4 Credit cards ... Summary: Add the ability to parse credit cards and identify the issuer in Duckling. Credit card numbers are a sequence of 8 to 19 digits, with a few specific digits at the start that identify the card issuer. They also satisfy Luhn checksum (https://en.wikipedia.org/wiki/Luhn_algorithm). Reviewed By: chinmay87 Differential Revision: D13014623 fbshipit-source-id: 96586e074777ae90a4a39c515648c31a8111f0c2		2018-11-14 11:16:03 -08:00
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Tests.hs	Credit cards	2018-11-14 11:16:03 -08:00