def encodeIn8BitMode(self, content):
mode = '8-bit'
leng, lml = len(content), self.getLengthMarkLen(mode)
data = self.getTagCode(mode) + xbin(leng, lml)
for i in content:
data += xbin(ord(i), 8)
assert len(data) == 4 + lml + 8 * leng
return data
def encodeInDigitMode(self, content):
mode, leng = 'digit', len(content)
gumi, data = leng / 3, ''
for i in xrange(gumi):
i = i * 3
text = content[i:i + 3]
data += xbin(text, 10)
rest = leng % 3
if rest > 0:
data += xbin(content[-rest:], 3 * rest + 1)
# byte counter begin
lml = self.getLengthMarkLen(mode)
data = xbin(leng, lml) + data
data = self.getTagCode(mode) + data
assert len(data) == 4 + lml + 10 * gumi + 3 * rest + (1 if rest else 0)
return data
def setFormatInfo(self):
'''
设置掩码格式、容错质量等信息
'''
if self.__error or not self.__matrix: return
data = xbin(self.__quality, 2) + xbin(self.__mask, 3)
bch = BCHCoder(15, 5, '10100110111')
data += bch.encode(data)
data = strXor(data, '101010000010010')
data = map(char2bool, data)
for i in xrange(8):
self.__matrix[8][i if i < 6 else i + 1] = BBP if data[i] else NBP
self.__matrix[self.__size - i - 1][8] = BBP if data[i] else NBP
for i in xrange(7):
i += 8
self.__matrix[15 -
(i if i < 9 else i + 1)][8] = BBP if data[i] else NBP
self.__matrix[8][self.__size - 15 + i] = BBP if data[i] else NBP
self.__matrix[self.__size - 8][8] = BBP
def translate(char):
ochar = char.encode('gbk')
char = [ord(ochar[0]), ord(ochar[1])]
if 0xA1 <= char[0] <= 0xAA and 0xA1 <= char[1] <= 0xFE:
value = (char[0] - 0xA1) * 0x60 + (char[1] - 0xA1)
elif 0xB0 <= char[0] <= 0xFA and 0xA1 <= char[1] <= 0xFE:
value = (char[0] - 0xA6) * 0x60 + (char[1] - 0xA1)
else:
value = 64
return xbin(value, 13)
def setVersionInfo(self):
"""
setVersionInfo
"""
if self.__error or not self.__matrix: return
if self.__version < 7: return
data = xbin(self.__version, 6)
bch = BCHCoder(18, 6, '1111100100101')
chkcode = bch.encode(data)
data = map(char2bool, (data + chkcode)[::-1])
startColumn = self.__size - 11
for i in xrange(18):
self.__matrix[startColumn + i % 3][i / 3] = BBP if data[i] else NBP
self.__matrix[i / 3][startColumn + i % 3] = BBP if data[i] else NBP
def encodeCheckCode(self, data, length):
rates = QRDataEncoder.GF.getRates(length)
buf = [0] * length
ldata = len(data) // 8
for i in xrange(ldata):
elem = eval('0b' + data[8 * i:8 * i + 8])
busbuf = buf[-1] ^ elem
for j in xrange(length - 1, -1, -1):
tmp = QRDataEncoder.GF.mul(busbuf, rates[j])
if j > 0:
buf[j] = buf[j - 1] ^ tmp
else:
buf[j] = tmp
return ''.join(map(lambda x: xbin(x, 8), buf[::-1]))
def encodeInAlphaDigitMode(self, content):
def getADIndex(char):
asc = ord(char)
if 0x30 <= asc < 0x39:
value = asc - 0x30
elif 0x41 <= asc <= 0x5A:
value = asc - 0x37 #asc-0x41+10
else:
value = ' $%*+-./'.index(char) + 36
return value
mode, leng, content = 'alphadigit', len(content), content.upper()
gumi, lml = leng / 2, self.getLengthMarkLen(mode)
data = self.getTagCode(mode) + xbin(leng, lml)
for i in xrange(gumi):
i *= 2
text = content[i:i + 3]
value = getADIndex(text[0]) * 45 + getADIndex(text[1])
data += xbin(value, 11)
rest = leng % 2
if rest > 0:
data += xbin(getADIndex(content[-1]), 6)
assert len(data) == 4 + lml + 11 * gumi + 6 * rest
return data
def encodeInKanjiMode(self, content):
def translate(char):
ochar = char.encode('gbk')
char = [ord(ochar[0]), ord(ochar[1])]
if 0xA1 <= char[0] <= 0xAA and 0xA1 <= char[1] <= 0xFE:
value = (char[0] - 0xA1) * 0x60 + (char[1] - 0xA1)
elif 0xB0 <= char[0] <= 0xFA and 0xA1 <= char[1] <= 0xFE:
value = (char[0] - 0xA6) * 0x60 + (char[1] - 0xA1)
else:
value = 64
return xbin(value, 13)
mode, content = 'kanji', content.decode(dataCoding)
leng, lml = len(content), self.getLengthMarkLen(mode)
data = self.getTagCode(mode) + '0001' + xbin(leng, lml)
for i in content:
data += translate(i)
assert len(data) == 8 + lml + 13 * leng
return data