2796N/A

2796N/Afrom Base import Barcode

2796N/Aimport math

2796N/Aimport re

2796N/A

2796N/Amap = [ '11011001100','11001101100','11001100110','10010011000','10010001100','10001001100','10011001000','10011000100','10001100100','11001001000','11001000100','11000100100','10110011100','10011011100','10011001110','10111001100','10011101100','10011100110','11001110010','11001011100','11001001110','11011100100','11001110100','11101101110','11101001100','11100101100','11100100110','11101100100','11100110100','11100110010','11011011000','11011000110','11000110110','10100011000','10001011000','10001000110','10110001000','10001101000','10001100010','11010001000','11000101000','11000100010','10110111000','10110001110','10001101110','10111011000','10111000110','10001110110','11101110110','11010001110','11000101110','11011101000','11011100010','11011101110','11101011000','11101000110','11100010110','11101101000','11101100010','11100011010','11101111010','11001000010','11110001010','10100110000','10100001100','10010110000','10010000110','10000101100','10000100110','10110010000','10110000100','10011010000','10011000010','10000110100','10000110010','11000010010','11001010000','11110111010','11000010100','10001111010','10100111100','10010111100','10010011110','10111100100','10011110100','10011110010','11110100100','11110010100','11110010010','11011011110','11011110110','11110110110','10101111000','10100011110','10001011110','10111101000','10111100010','11110101000','11110100010','10111011110','10111101110','11101011110','11110101110','11010000100','11010010000','11010011100','11000111010','11' ]

2796N/A

def mapExtra(sd, chars):

result = list(sd)

for char in chars:

result.append(chr(char))

result.append('FNC3')

result.append('FNC2')

result.append('SHIFT')

return result

charAB = list(' !"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_')

charA = mapExtra(charAB, range(0, 31)) # Offset 64

charB = mapExtra(charAB, range(96, 125)) # Offset -32

class Object(Barcode):

def encode(self, text):

result = ''

blocks = []

block = ''

# Split up into sections of numbers, or charicters

# This makes sure that all the charicters are encoded

# In the best way posible for Code128

for datum in re.findall(r'(?:(?:\d\d){2,})|(?:^\d\d)|.', text):

if len(datum) == 1:

block = block + datum

else:

if block:

blocks.append(self.bestBlock(block))

block = ''

blocks.append( [ 'C', datum ] )

if block:

blocks.append(self.bestBlock(block))

block = '';

self.inclabel = text

return self.encodeBlocks(blocks)

def bestBlock(self, block):

# If this has lower case then select B over A

if block.upper() == block:

return [ 'A', block ]

return [ 'B', block ]

def encodeBlocks(self, blocks):

total = 0

pos = 0

encode = '';

for block in blocks:

set = block[0]

datum = block[1]

# POS : 0, 1

# A : 101, 103

# B : 100, 104

# C : 99, 105

num = 0;

if set == 'A':

num = 103

elif set == 'B':

num = 104

elif set == 'C':

num = 105

i = pos

if pos:

num = 204 - num

else:

i = 1

total = total + num * i

encode = encode + map[num]

pos = pos + 1

if set == 'A' or set == 'B':

chars = charB

if set == 'A':

chars = charA

for char in datum:

total = total + (chars.index(char) * pos)

encode = encode + map[chars.index(char)]

pos = pos + 1

else:

for char in (datum[i:i+2] for i in range(0, len(datum), 2)):

total = total + (int(char) * pos)

encode = encode + map[int(char)]

pos = pos + 1

checksum = total % 103

encode = encode + map[checksum]

encode = encode + map[106]

encode = encode + map[107]

return encode