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PDB - Plucker: Remove pure python PalmDoc decompression and use C module.

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This commit is contained in:
John Schember 2011-04-24 21:15:26 -04:00
parent a9f6a3faa9
commit 077ecd7d41
1 changed files with 1 additions and 27 deletions
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28
src/calibre/ebooks/pdb/plucker/reader.py
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@ -109,32 +109,6 @@ MIBNUM_TO_NAME = {
2258: 'cp1258',
}
def decompress_doc(data):
buffer = [ord(i) for i in data]
res = []
i = 0
while i < len(buffer):
c = buffer[i]
i += 1
if c >= 1 and c <= 8:
res.extend(buffer[i:i+c])
i += c
elif c <= 0x7f:
res.append(c)
elif c >= 0xc0:
res.extend( (ord(' '), c^0x80) )
else:
c = (c << 8) + buffer[i]
i += 1
di = (c & 0x3fff) >> 3
j = len(res)
num = (c & ((1 << 3) - 1)) + 3
for k in range( num ):
res.append(res[j - di+k])
return ''.join([chr(i) for i in res])
class HeaderRecord(object):
'''
Plucker header. PDB record 0.
@ -504,7 +478,7 @@ class Reader(FormatReader):
raise NotImplementedError
return zlib.decompress(data)
elif self.header_record.compression == 1:
#from calibre.ebooks.compression.palmdoc import decompress_doc
from calibre.ebooks.compression.palmdoc import decompress_doc
return decompress_doc(data)
def process_phtml(self, d, paragraph_offsets=[]):