diff options
Diffstat (limited to 'share/extensions/Barcode/Code128.py')
| -rw-r--r-- | share/extensions/Barcode/Code128.py | 130 |
1 files changed, 65 insertions, 65 deletions
diff --git a/share/extensions/Barcode/Code128.py b/share/extensions/Barcode/Code128.py index 7ff92088f..b90e3bcf6 100644 --- a/share/extensions/Barcode/Code128.py +++ b/share/extensions/Barcode/Code128.py @@ -17,42 +17,42 @@ # # You should have received a copy of the GNU General Public License # along with this program; if not, write to the Free Software -# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. +# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA. # """ -Python barcode renderer for Code128/EAN128 barcodes. Designed for use with Inkscape. +Renderer for Code128/EAN128 codes. Designed for use with Inkscape. """ -from Base import Barcode -import math +from .Base import Barcode import re -codeMap = [ - '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' ] - -def mapExtra(sd, chars): - result = list(sd) +CODE_MAP = [ + '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'] + +def map_extra(data, chars): + """Maps the data into the chars""" + result = list(data) for char in chars: result.append(chr(char)) result.append('FNC3') @@ -60,18 +60,18 @@ def mapExtra(sd, chars): result.append('SHIFT') return result -# The mapExtra method is used to slim down the amount +# The map_extra method is used to slim down the amount # of pre code and instead we generate the lists -charAB = list(' !"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_') -charA = mapExtra(charAB, range(0, 31)) # Offset 64 -charB = mapExtra(charAB, range(96, 125)) # Offset -32 +CHAR_AB = list(" !\"#$%&\'()*+,-./0123456789:;<=>?@" + "ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_") +CHAR_A = map_extra(CHAR_AB, range(0, 31)) # Offset 64 +CHAR_B = map_extra(CHAR_AB, range(96, 125)) # Offset -32 class Code128(Barcode): """Main barcode object, generates the encoding bits here""" def encode(self, text): - result = '' blocks = [] - block = '' + block = '' # Split up into sections of numbers, or charicters # This makes sure that all the charicters are encoded @@ -81,42 +81,42 @@ class Code128(Barcode): block = block + datum else: if block: - blocks.append(self.bestBlock(block)) + blocks.append(self.best_block(block)) block = '' - blocks.append( [ 'C', datum ] ) + blocks.append(['C', datum]) if block: - blocks.append(self.bestBlock(block)) - block = ''; + blocks.append(self.best_block(block)) + block = '' - self.inclabel = text - return self.encodeBlocks(blocks) + return self.encode_blocks(blocks) - def bestBlock(self, block): - # If this has lower case then select B over A + def best_block(self, block): + """If this has lower case then select B over A""" if block.upper() == block: - return [ 'A', block ] - return [ 'B', block ] + return ['A', block] + return ['B', block] - def encodeBlocks(self, blocks): - total = 0 - pos = 0 - encode = ''; + def encode_blocks(self, blocks): + """Encode the given blocks into A, B or C codes""" + encode = '' + total = 0 + pos = 0 for block in blocks: - set = block[0] + b_set = block[0] datum = block[1] # POS : 0, 1 # A : 101, 103 # B : 100, 104 # C : 99, 105 - num = 0; - if set == 'A': + num = 0 + if b_set == 'A': num = 103 - elif set == 'B': + elif b_set == 'B': num = 104 - elif set == 'C': + elif b_set == 'C': num = 105 i = pos @@ -126,28 +126,28 @@ class Code128(Barcode): i = 1 total = total + num * i - encode = encode + codeMap[num] + encode = encode + CODE_MAP[num] pos = pos + 1 - if set == 'A' or set == 'B': - chars = charB - if set == 'A': - chars = charA + if b_set == 'A' or b_set == 'B': + chars = CHAR_B + if b_set == 'A': + chars = CHAR_A for char in datum: total = total + (chars.index(char) * pos) - encode = encode + codeMap[chars.index(char)] + encode = encode + CODE_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 + codeMap[int(char)] + encode = encode + CODE_MAP[int(char)] pos = pos + 1 checksum = total % 103 - encode = encode + codeMap[checksum] - encode = encode + codeMap[106] - encode = encode + codeMap[107] + encode = encode + CODE_MAP[checksum] + encode = encode + CODE_MAP[106] + encode = encode + CODE_MAP[107] return encode |