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Kovid Goyal 2018-12-27 09:51:03 +05:30
parent 8179235f2d
commit 23f0256db7
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2 changed files with 19 additions and 20 deletions
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1
src/calibre/utils/chm/__init__.py
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@ -26,4 +26,3 @@
__all__ = ["chm", "chmlib", "_chmlib", "extra"]
__version__ = "0.8.4"
__revision__ = "$Id: __init__.py,v 1.8 2006/06/18 10:50:43 rubensr Exp $"

36
src/calibre/utils/chm/chm.py
View File

@ -210,11 +210,11 @@ class CHMFile:
such as the index file name and the topics file. It returns 1 on
success, and 0 if it fails.
'''
if (self.filename is not None):
if self.filename is not None:
self.CloseCHM()
self.file = chmlib.chm_open(archiveName)
if (self.file is None):
if self.file is None:
return 0
self.filename = archiveName
@ -227,7 +227,7 @@ class CHMFile:
This function will close the CHM file, if it is open. All variables
are also reset.
'''
if (self.filename is not None):
if self.filename is not None:
chmlib.chm_close(self.file)
self.file = None
self.filename = ''
@ -265,32 +265,32 @@ class CHMFile:
while (index < size):
cursor = buff[index] + (buff[index+1] * 256)
if (cursor == 0):
if cursor == 0:
index += 2
cursor = buff[index] + (buff[index+1] * 256)
index += 2
self.topics = '/' + text[index:index+cursor-1]
elif (cursor == 1):
elif cursor == 1:
index += 2
cursor = buff[index] + (buff[index+1] * 256)
index += 2
self.index = '/' + text[index:index+cursor-1]
elif (cursor == 2):
elif cursor == 2:
index += 2
cursor = buff[index] + (buff[index+1] * 256)
index += 2
self.home = '/' + text[index:index+cursor-1]
elif (cursor == 3):
elif cursor == 3:
index += 2
cursor = buff[index] + (buff[index+1] * 256)
index += 2
self.title = text[index:index+cursor-1]
elif (cursor == 4):
elif cursor == 4:
index += 2
cursor = buff[index] + (buff[index+1] * 256)
index += 2
self.lcid = buff[index] + (buff[index+1] * 256)
elif (cursor == 6):
elif cursor == 6:
index += 2
cursor = buff[index] + (buff[index+1] * 256)
index += 2
@ -300,13 +300,13 @@ class CHMFile:
tmp2 = '/' + tmp + '.hhk'
res1, ui1 = chmlib.chm_resolve_object(self.file, tmp1)
res2, ui2 = chmlib.chm_resolve_object(self.file, tmp2)
if (not self.topics) and \
(res1 == chmlib.CHM_RESOLVE_SUCCESS):
if not self.topics and \
res1 == chmlib.CHM_RESOLVE_SUCCESS:
self.topics = '/' + tmp + '.hhc'
if (not self.index) and \
(res2 == chmlib.CHM_RESOLVE_SUCCESS):
if not self.index and \
res2 == chmlib.CHM_RESOLVE_SUCCESS:
self.index = '/' + tmp + '.hhk'
elif (cursor == 16):
elif cursor == 16:
index += 2
cursor = buff[index] + (buff[index+1] * 256)
index += 2
@ -329,7 +329,7 @@ class CHMFile:
This auxiliary function reads and returns the topics tree file
contents for the CHM archive.
'''
if (self.topics is None):
if self.topics is None:
return None
if self.topics:
@ -338,7 +338,7 @@ class CHMFile:
return None
size, text = chmlib.chm_retrieve_object(self.file, ui, 0, ui.length)
if (size == 0):
if size == 0:
sys.stderr.write('GetTopicsTree: file size = 0\n')
return None
return text
@ -453,8 +453,8 @@ class CHMFile:
'''Internal method.
Reads a double word (4 bytes) from a buffer.
'''
result = buff[idx] + (buff[idx+1]<<8) + (buff[idx+2]<<16) + \
(buff[idx+3]<<24)
result = buff[idx] + (buff[idx+1] << 8) + (buff[idx+2] << 16) + \
(buff[idx+3] << 24)
if result == 0xFFFFFFFF:
result = 0