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EPUB 3 metadata: If a book defines no authors but does define editors, use the editors as authors. Also support the display-seq refinement to sort authors. See #1950579 (Private bug)

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Kovid Goyal 2021-11-12 07:47:39 +05:30
parent b3c2cf0c10
commit eea263f744
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1 changed files with 20 additions and 5 deletions
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25
src/calibre/ebooks/metadata/opf3.py
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@ -6,9 +6,9 @@
import json
import re
from collections import defaultdict, namedtuple
from contextlib import suppress
from operator import attrgetter
from functools import wraps
from polyglot.builtins import iteritems
from lxml import etree
from calibre import prints
@ -29,6 +29,7 @@ from calibre.utils.date import (
)
from calibre.utils.iso8601 import parse_iso8601
from calibre.utils.localization import canonicalize_lang
from polyglot.builtins import iteritems
# Utils {{{
_xpath_cache = {}
@ -424,7 +425,7 @@ def set_languages(root, prefixes, refines, languages):
# Creator/Contributor {{{
Author = namedtuple('Author', 'name sort')
Author = namedtuple('Author', 'name sort seq')
def is_relators_role(props, q):
@ -438,6 +439,7 @@ def is_relators_role(props, q):
def read_authors(root, prefixes, refines):
roled_authors, unroled_authors = [], []
editors_map = {}
def author(item, props, val):
aus = None
@ -446,7 +448,11 @@ def read_authors(root, prefixes, refines):
aus = file_as[0][-1]
else:
aus = item.get(OPF('file-as')) or None
return Author(normalize_whitespace(val), normalize_whitespace(aus))
seq = 0
ds = props.get('display-seq')
with suppress(Exception):
seq = int(ds[0][-1])
return Author(normalize_whitespace(val), normalize_whitespace(aus), seq)
for item in XPath('./opf:metadata/dc:creator')(root):
val = (item.text or '').strip()
@ -457,13 +463,22 @@ def read_authors(root, prefixes, refines):
if role:
if is_relators_role(props, 'aut'):
roled_authors.append(author(item, props, val))
if is_relators_role(props, 'edt'):
# See https://bugs.launchpad.net/calibre/+bug/1950579
a = author(item, props, val)
editors_map[a.name] = a
elif opf_role:
if opf_role.lower() == 'aut':
roled_authors.append(author(item, props, val))
else:
unroled_authors.append(author(item, props, val))
return uniq(roled_authors or unroled_authors)
if roled_authors or unroled_authors:
ans = uniq(roled_authors or unroled_authors)
else:
ans = uniq(editors_map.values())
ans.sort(key=attrgetter('seq'))
return ans
def set_authors(root, prefixes, refines, authors):