autober is a language for generating BER decoders. It's different from an ASN.1 compiler in that it's much simpler and it only deals with BER-encoded messages. It is intended for smart card and RFID applications where much of the data stored on these devices is, in-fact, BER-encoded TLV data. The language is designed to be very similar to the template definitions found in the specifications for smart card and RFID applications.