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Edit book: Handle epub files which contain opf files with no <metadata> tags

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This commit is contained in:
Kovid Goyal 2013-12-20 23:31:53 +05:30
parent 512d608a95
commit 72d2a7e372
1 changed files with 19 additions and 15 deletions
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34
src/calibre/ebooks/oeb/polish/container.py
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@ -692,21 +692,25 @@ class Container(object): # {{{
return item
def format_opf(self):
mdata = self.opf_xpath('//opf:metadata')[0]
mdata.text = '\n '
remove = set()
for child in mdata:
child.tail = '\n '
try:
if (child.get('name', '').startswith('calibre:') and
child.get('content', '').strip() in {'{}', ''}):
remove.add(child)
except AttributeError:
continue # Happens for XML comments
for child in remove:
mdata.remove(child)
if len(mdata) > 0:
mdata[-1].tail = '\n '
try:
mdata = self.opf_xpath('//opf:metadata')[0]
except IndexError:
pass
else:
mdata.text = '\n '
remove = set()
for child in mdata:
child.tail = '\n '
try:
if (child.get('name', '').startswith('calibre:') and
child.get('content', '').strip() in {'{}', ''}):
remove.add(child)
except AttributeError:
continue # Happens for XML comments
for child in remove:
mdata.remove(child)
if len(mdata) > 0:
mdata[-1].tail = '\n '
# Ensure name comes before content, needed for Nooks
for meta in self.opf_xpath('//opf:meta[@name="cover"]'):
if 'content' in meta.attrib: