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Edit book: Reports: Include descendant selectors that use classes when counting class usage. Fixes #1954839 [Style classes wrongly reported as 0 (unused)](https://bugs.launchpad.net/calibre/+bug/1954839)

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Kovid Goyal 2021-12-15 10:46:17 +05:30
parent 8c2aa4182c
commit c1dc45a79f
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1 changed files with 15 additions and 4 deletions
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19
src/calibre/ebooks/oeb/polish/report.py
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@ -297,10 +297,21 @@ def css_data(container, book_locale, result_data, *args):
matches = tuple(select(selector)) matches = tuple(select(selector))
except SelectorError: except SelectorError:
return () return ()
for elem in matches: seen = set()
for cls in elem.get('class', '').split():
if '.' + cls.lower() in lsel: def get_elem_and_ancestors(elem):
class_map[cls][elem].append(rule) p = elem
while p is not None:
if p not in seen:
yield p
seen.add(p)
p = p.getparent()
for e in matches:
for elem in get_elem_and_ancestors(e):
for cls in elem.get('class', '').split():
if '.' + cls.lower() in lsel:
class_map[cls][elem].append(rule)
return (MatchLocation(tag_text(elem), elem.sourceline) for elem in matches) return (MatchLocation(tag_text(elem), elem.sourceline) for elem in matches)