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Ensure toc items are not duplicated in the toc anchor map

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Kovid Goyal 2016-12-30 15:23:43 +05:30
parent f5337dcad0
commit d2ccda55cc
1 changed files with 3 additions and 1 deletions
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4
src/calibre/srv/render_book.py
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@ -154,11 +154,13 @@ def get_length(root):
def toc_anchor_map(toc):
ans = defaultdict(list)
seen_map = defaultdict(set)
def process_node(node):
name = node['dest']
if name:
if name and node['id'] not in seen_map[name]:
ans[name].append({'id':node['id'], 'frag':node['frag']})
seen_map[name].add(node['id'])
tuple(map(process_node, node['children']))
process_node(toc)