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Small performance optimization

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Kovid Goyal 2015-01-22 10:29:48 +05:30
parent a937ccdcdf
commit a006aed4f1
1 changed files with 3 additions and 5 deletions
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8
src/calibre/ebooks/oeb/polish/report.py
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@ -58,14 +58,12 @@ def file_data(container):
Image = namedtuple('Image', 'name mime_type usage size basename id width height') Image = namedtuple('Image', 'name mime_type usage size basename id width height')
L = namedtuple('Location', 'name line_number text_on_line word_on_line character_offset') LinkLocation = namedtuple('LinkLocation', 'name line_number text_on_line')
def Location(name, line_number=None, text_on_line=None, word_on_line=None, character_offset=None):
return L(name, line_number, text_on_line, word_on_line, character_offset)
def sort_locations(container, locations): def sort_locations(container, locations):
nmap = {n:i for i, (n, l) in enumerate(container.spine_names)} nmap = {n:i for i, (n, l) in enumerate(container.spine_names)}
def sort_key(l): def sort_key(l):
return (nmap.get(l.name, 100000), numeric_sort_key(l.name), l.line_number, l.character_offset) return (nmap.get(l.name, len(nmap)), numeric_sort_key(l.name), l.line_number)
return sorted(locations, key=sort_key) return sorted(locations, key=sort_key)
def link_data(container): def link_data(container):
@ -78,7 +76,7 @@ def link_data(container):
if target and container.exists(target): if target and container.exists(target):
mt = container.mime_map.get(target) mt = container.mime_map.get(target)
if mt and mt.startswith('image/'): if mt and mt.startswith('image/'):
image_usage[target].add(Location(name, line_number, text_on_line=href)) image_usage[target].add(LinkLocation(name, line_number, href))
image_data = [] image_data = []
for name, mt in container.mime_map.iteritems(): for name, mt in container.mime_map.iteritems():