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Kovid Goyal 2014-03-28 13:19:03 +05:30
parent 157a2a3a69
commit 00038f3207
1 changed files with 10 additions and 8 deletions
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8
src/calibre/ebooks/mobi/utils.py
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@ -256,7 +256,7 @@ def decode_fvwi(byts, flag_size=4):
def decode_tbs(byts, flag_size=4): def decode_tbs(byts, flag_size=4):
''' '''
Trailing byte sequences for indexing consists of series of fvwi numbers. Trailing byte sequences for indexing consists of series of fvwi numbers.
This function reads the fvwi number and its associated flags. It them uses This function reads the fvwi number and its associated flags. It then uses
the flags to read any more numbers that belong to the series. The flags are the flags to read any more numbers that belong to the series. The flags are
the lowest 4 bits of the vwi (see the encode_fvwi function above). the lowest 4 bits of the vwi (see the encode_fvwi function above).
@ -323,7 +323,8 @@ def align_block(raw, multiple=4, pad=b'\0'):
of 4. of 4.
''' '''
extra = len(raw) % multiple extra = len(raw) % multiple
if extra == 0: return raw if extra == 0:
return raw
return raw + pad*(multiple - extra) return raw + pad*(multiple - extra)
@ -370,7 +371,8 @@ def count_set_bits(num):
def to_base(num, base=32, min_num_digits=None): def to_base(num, base=32, min_num_digits=None):
digits = string.digits + string.ascii_uppercase digits = string.digits + string.ascii_uppercase
sign = 1 if num >= 0 else -1 sign = 1 if num >= 0 else -1
if num == 0: return ('0' if min_num_digits is None else '0'*min_num_digits) if num == 0:
return ('0' if min_num_digits is None else '0'*min_num_digits)
num *= sign num *= sign
ans = [] ans = []
while num: while num: