LEFT_ENCODINGS_ODD |
= |
{ 0 => '0001101', 1 => '0011001', 2 => '0010011', 3 => '0111101', 4 => '0100011', 5 => '0110001', 6 => '0101111', 7 => '0111011', 8 => '0110111', 9 => '0001011' |
LEFT_ENCODINGS_EVEN |
= |
{ 0 => '0100111', 1 => '0110011', 2 => '0011011', 3 => '0100001', 4 => '0011101', 5 => '0111001', 6 => '0000101', 7 => '0010001', 8 => '0001001', 9 => '0010111' |
RIGHT_ENCODINGS |
= |
{ 0 => '1110010', 1 => '1100110', 2 => '1101100', 3 => '1000010', 4 => '1011100', 5 => '1001110', 6 => '1010000', 7 => '1000100', 8 => '1001000', 9 => '1110100' |
LEFT_PARITY_MAPS |
= |
{ 0 => [:odd, :odd, :odd, :odd, :odd, :odd], #UPC-A 1 => [:odd, :odd, :even, :odd, :even, :even], 2 => [:odd, :odd, :even, :even, :odd, :even], 3 => [:odd, :odd, :even, :even, :even, :odd], 4 => [:odd, :even, :odd, :odd, :even, :even], 5 => [:odd, :even, :even, :odd, :odd, :even], 6 => [:odd, :even, :even, :even, :odd, :odd], 7 => [:odd, :even, :odd, :even, :odd, :even], 8 => [:odd, :even, :odd, :even, :even, :odd], 9 => [:odd, :even, :even, :odd, :even, :odd] |
|
Describes whether the left-hand encoding
should use LEFT_ENCODINGS_ODD or LEFT_ENCODINGS_EVEN, based on the first
digit in the number system (and the barcode as a whole)
|
START |
= |
'101' |
|
These are the lines that "stick down" in the graphical
representation
|
FORMAT |
= |
/^\d{12}$/ |
|
EAN-13 barcodes have 12 digits + check digit
|