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Add a convenience method to iterate over filenames of specific types

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Kovid Goyal 2016-06-30 22:39:09 +05:30
parent 0a3c321d31
commit 3052ebd8a5
1 changed files with 13 additions and 0 deletions
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13
src/calibre/ebooks/oeb/polish/container.py
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@ -618,6 +618,19 @@ class Container(ContainerBase): # {{{
if q in props:
yield self.href_to_name(item.get('href'), self.opf_name)
def manifest_items_of_type(self, predicate):
''' The names of all manifest items whose media-type matches predicate.
`predicate` can be a set, a list, a string or a function taking a single
argument, which will be called with the media-type. '''
if isinstance(predicate, type('')):
predicate = predicate.__eq__
elif hasattr(predicate, '__contains__'):
predicate = predicate.__contains__
for mt, names in self.manifest_type_map.iteritems():
if predicate(mt):
for name in names:
yield name
@property
def guide_type_map(self):
' Mapping of guide type to canonical name '