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EPUB Output: Fix a duplicate id created in rare circumstances when splitting on page breaks. Fixes #1658744 [Duplicate ID error after converting from DOCX to EPUB](https://bugs.launchpad.net/calibre/+bug/1658744)

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This commit is contained in:
Kovid Goyal 2017-01-25 17:38:59 +05:30
parent f8a2449d7f
commit c85a3167e0
1 changed files with 5 additions and 5 deletions
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src/calibre/ebooks/oeb/transforms/split.py
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@ -254,7 +254,7 @@ class FlowSplitter(object):
self.trees[i:i+1] = [before_tree, after_tree] self.trees[i:i+1] = [before_tree, after_tree]
break break
trees, ids = [], set([]) trees, ids = [], set()
for tree in self.trees: for tree in self.trees:
root = tree.getroot() root = tree.getroot()
if self.is_page_empty(root): if self.is_page_empty(root):
@ -267,10 +267,10 @@ class FlowSplitter(object):
if ids: if ids:
body = self.get_body(root) body = self.get_body(root)
if body is not None: if body is not None:
for x in ids: existing_ids = frozenset(body.xpath('//*/@id'))
body.insert(0, body.makeelement(XHTML('div'), for x in ids - existing_ids:
id=x, style='height:0pt')) body.insert(0, body.makeelement(XHTML('div'), id=x, style='height:0pt'))
ids = set([]) ids = set()
trees.append(tree) trees.append(tree)
self.trees = trees self.trees = trees