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Code cleanup

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This commit is contained in:
Kovid Goyal 2014-03-29 15:19:58 +05:30
parent df0f4106a5
commit f4e1ea020d
1 changed files with 4 additions and 7 deletions
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11
src/calibre/ebooks/mobi/utils.py
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@ -578,17 +578,14 @@ class CNCX(object): # {{{
self.records = [] self.records = []
offset = 0 offset = 0
buf = BytesIO() buf = BytesIO()
for key in tuple(self.strings.iterkeys()): RECORD_LIMIT = 0x10000 - 1024 # kindlegen appears to use 1024, PDB limit is 0x10000
for key in self.strings.iterkeys():
utf8 = utf8_text(key[:self.MAX_STRING_LENGTH]) utf8 = utf8_text(key[:self.MAX_STRING_LENGTH])
l = len(utf8) l = len(utf8)
sz_bytes = encint(l) sz_bytes = encint(l)
raw = sz_bytes + utf8 raw = sz_bytes + utf8
if 0xfbf8 - buf.tell() < 6 + len(raw): if buf.tell() + len(raw) > RECORD_LIMIT:
# Records in PDB files cannot be larger than 0x10000, so we self.records.append(align_block(buf.getvalue()))
# stop well before that.
pad = 0xfbf8 - buf.tell()
buf.write(b'\0' * pad)
self.records.append(buf.getvalue())
buf.seek(0), buf.truncate(0) buf.seek(0), buf.truncate(0)
offset = len(self.records) * 0x10000 offset = len(self.records) * 0x10000
buf.write(raw) buf.write(raw)