Current File : //usr/lib/calibre/calibre/ebooks/metadata/imp.py
__license__ = 'GPL v3'
__copyright__ = '2008, Ashish Kulkarni <kulkarni.ashish@gmail.com>'
'''Read meta information from IMP files'''
import sys
from calibre.ebooks.metadata import MetaInformation, string_to_authors
MAGIC = (b'\x00\x01BOOKDOUG', b'\x00\x02BOOKDOUG')
def get_metadata(stream):
""" Return metadata as a L{MetaInfo} object """
title = 'Unknown'
mi = MetaInformation(title, ['Unknown'])
stream.seek(0)
try:
if stream.read(10) not in MAGIC:
print('Couldn\'t read IMP header from file', file=sys.stderr)
return mi
def cString(skip=0):
result = b''
while 1:
data = stream.read(1)
if data == b'\x00':
if not skip:
return result.decode('utf-8')
skip -= 1
result, data = b'', b''
result += data
stream.read(38) # skip past some uninteresting headers
cString()
category, title, author = cString(), cString(1), cString(2)
if title:
mi.title = title
if author:
mi.authors = string_to_authors(author)
mi.author = author
if category:
mi.category = category
except Exception as err:
msg = 'Couldn\'t read metadata from imp: %s with error %s'%(mi.title, str(err))
print(msg.encode('utf8'), file=sys.stderr)
return mi
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