Really nice
I use it to check barcodes I generate. It decodes your barcodes to give you your company name, your product, manufacture date, and serial number. However, there’s a bug in decoding the serial number, starts with application identifier 21. If there is a sequence of digits in the serial number that matches another GS1 application identifier, it breaks the serial number and starts another field with that sequence. This is wrong. Application identifier 21 can be followed by variable number of characters and stay together as the serial number, unless separated by FCN1.
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