Re: [sudo-access] magnetic card reader error codes as peoples' card hashes

Integration is definitely doable. The problem is that the previous scancode_decode.js (the one we currently use) was very incomplete and could not interpret the characters that inform about errors. In order to detect the errors the new scancode_decode.js must be used (from the commit I previously mentioned) but using that scancode_decode means breaking compatibility. The solution is to use the improved scancode_decode first and if there are no errors but none of the hashes in the database matched then retry with the old scancode_decode.