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Kovid Goyal 2011-07-18 20:04:03 -06:00
parent 79ca569caa
commit 08dff7d722
1 changed files with 65 additions and 6 deletions
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71
src/calibre/ebooks/mobi/debug.py
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@ -511,7 +511,7 @@ class IndexEntry(object): # {{{
}
def __init__(self, ident, entry_type, raw, is_last):
self.id = ident
self.index = ident
self.fields = []
self.sub_type = None
self.raw = raw
@ -531,10 +531,69 @@ class IndexEntry(object): # {{{
if is_last and self.fields[-1] == 0:
self.fields = self.fields[:-1]
self.interpret()
def interpret(self):
self.offset = self.fields[0]
self.object_size = self.fields[1]
self.label_offset = self.fields[2]
self.depth = self.fields[3]
self.extra = OrderedDict()
self.extra_fields = []
if self.entry_type == 'subchapter':
self.parent_index = self.fields[4]
self.extra['Parent chapter index'] = 'parent_index'
self.extra_fields = self.fields[5:]
elif self.entry_type == 'article':
self.class_offset = self.fields[4]
self.extra['Class offset in CTOC'] = 'class_offset'
self.parent_index = self.fields[5]
self.extra['Parent section index'] = 'parent_index'
if len(self.fields) > 6:
self.desc_offset = self.fields[6]
self.extra['Decription offset in CTOC'] = 'desc_offset'
if len(self.fields) > 7:
self.author_offset = self.fields[7]
self.extra['Author offset in CTOC'] = 'author_offset'
self.extra_fields = self.fields[8:]
elif self.entry_type == 'chapter_with_subchapters':
self.first_subchapter_index = self.fields[4]
self.last_subchapter_index = self.fields[5]
self.extra['First subchapter index'] = 'first_subchapter_index'
self.extra['Last subchapter index'] = 'last_subchapter_index'
self.extra_fields = self.fields[6:]
elif self.entry_type == 'periodical':
self.class_offset = self.fields[4]
self.extra['Class offset in CTOC'] = 'class_offset'
self.first_section_index = self.fields[5]
self.last_section_index = self.fields[6]
self.extra['First section index'] = 'first_section_index'
self.extra['Last section index'] = 'last_section_index'
self.extra_fields = self.fields[7:]
elif self.entry_type == 'section':
self.class_offset = self.fields[4]
self.extra['Class offset in CTOC'] = 'class_offset'
self.periodical_index = self.fields[5]
self.extra['Periodical index'] = 'periodical_index'
self.first_article_index = self.fields[6]
self.last_article_index = self.fields[7]
self.extra['First article index'] = 'first_article_index'
self.extra['Last article index'] = 'last_article_index'
self.extra_fields = self.fields[8:]
def __str__(self):
ans = ['Index Entry(id=%s, entry_type=%s, sub_type=%s, length=%d)'%(
self.id, self.entry_type, self.sub_type, len(self.raw))]
ans.append('\tFields (%d): %r'%(len(self.fields), self.fields))
ans = ['Index Entry(index=%s, entry_type=%s, sub_type=%s, length=%d)'%(
self.index, self.entry_type, self.sub_type, len(self.raw))]
ans.append('\tOffset in HTML: %d'%self.offset)
ans.append('\tObject size in HTML: %d'%self.object_size)
ans.append('\tLabel offset in CTOC: %d'%self.label_offset)
ans.append('\tDepth: %d'%self.depth)
for text, attr in self.extra.iteritems():
ans.append('\t%s: %d'%(text, getattr(self, attr)))
if self.extra_fields:
ans.append('\tExtra Fields (%d): %r'%(len(self.extra_fields),
self.extra_fields))
return '\n'.join(ans)
# }}}
@ -577,9 +636,9 @@ class IndexRecord(object): # {{{
except:
next_off = len(indxt)
is_last = True
ident, consumed = decode_hex_number(indxt[off:])
index, consumed = decode_hex_number(indxt[off:])
entry_type, = u(b'>B', indxt[off+consumed])
self.indices.append(IndexEntry(ident, entry_type,
self.indices.append(IndexEntry(index, entry_type,
indxt[off+consumed+1:next_off], is_last))