def apply_trailing_byte_sequences(index_table, records, text_record_lengths):
entries = tuple(Entry(r['index'], r['offset'], r['length'], r['depth'],
r.get('parent', None), r.get('first_child', None), r.get('last_child',
None), r['label'], None, None, None, None) for r in index_table)
indexing_data = collect_indexing_data(entries, text_record_lengths)
try:
rmap = calculate_all_tbs(indexing_data)
except NegativeStrandIndex:
rmap = calculate_all_tbs(indexing_data, tbs_type=5)
for i, tbs_bytes in rmap.iteritems():
records[i] += encode_trailing_data(tbs_bytes)
return True
def apply_trailing_byte_sequences(index_table, records, text_record_lengths):
entries = tuple(Entry(r['index'], r['offset'], r['length'], r['depth'],
r.get('parent', None), r.get('first_child', None), r.get('last_child',
None), r['label'], None, None, None, None) for r in index_table)
indexing_data = collect_indexing_data(entries, text_record_lengths)
try:
rmap = calculate_all_tbs(indexing_data)
except NegativeStrandIndex:
rmap = calculate_all_tbs(indexing_data, tbs_type=5)
for i, tbs_bytes in rmap.iteritems():
records[i] += encode_trailing_data(tbs_bytes)
return True
def generate_index(self):
self.primary_index_record_idx = None
if self.oeb.toc.count() < 1:
self.log.warn('No TOC, MOBI index not generated')
return
try:
self.indexer = Indexer(
self.serializer, self.last_text_record_idx,
len(self.records[self.last_text_record_idx]),
self.masthead_offset, self.is_periodical, self.opts, self.oeb)
except:
self.log.exception('Failed to generate MOBI index:')
else:
self.primary_index_record_idx = len(self.records)
for i in xrange(self.last_text_record_idx + 1):
if i == 0: continue
tbs = self.indexer.get_trailing_byte_sequence(i)
self.records[i] += encode_trailing_data(tbs)
self.records.extend(self.indexer.records)
def generate_index(self):
self.primary_index_record_idx = None
if self.oeb.toc.count() < 1:
self.log.warn('No TOC, MOBI index not generated')
return
try:
self.indexer = Indexer(self.serializer, self.last_text_record_idx,
len(self.records[self.last_text_record_idx]),
self.masthead_offset, self.is_periodical,
self.opts, self.oeb)
except:
self.log.exception('Failed to generate MOBI index:')
else:
self.primary_index_record_idx = len(self.records)
for i in xrange(self.last_text_record_idx + 1):
if i == 0: continue
tbs = self.indexer.get_trailing_byte_sequence(i)
self.records[i] += encode_trailing_data(tbs)
self.records.extend(self.indexer.records)
def write_uncrossable_breaks(self): # {{{
'''
Write information about uncrossable breaks (non linear items in
the spine.
'''
if not WRITE_UNCROSSABLE_BREAKS:
return
breaks = self.serializer.breaks
for i in range(1, self.last_text_record_idx+1):
offset = i * RECORD_SIZE
pbreak = 0
running = offset
buf = io.BytesIO()
while breaks and (breaks[0] - offset) < RECORD_SIZE:
pbreak = (breaks.pop(0) - running) >> 3
encoded = encint(pbreak)
buf.write(encoded)
running += pbreak << 3
encoded = encode_trailing_data(buf.getvalue())
self.records[i] += encoded
def write_uncrossable_breaks(self): # {{{
'''
Write information about uncrossable breaks (non linear items in
the spine.
'''
if not WRITE_UNCROSSABLE_BREAKS:
return
breaks = self.serializer.breaks
for i in xrange(1, self.last_text_record_idx+1):
offset = i * RECORD_SIZE
pbreak = 0
running = offset
buf = StringIO()
while breaks and (breaks[0] - offset) < RECORD_SIZE:
pbreak = (breaks.pop(0) - running) >> 3
encoded = encint(pbreak)
buf.write(encoded)
running += pbreak << 3
encoded = encode_trailing_data(buf.getvalue())
self.records[i] += encoded
