Shortening authors and translators on cover.
[librarian.git] / src / librarian / document.py
1 import gettext
2 import os
3 import re
4 from lxml import etree
5 import six
6 from .parser import parser
7 from . import dcparser, DCNS, DirDocProvider
8 from .functions import lang_code_3to2
9
10
11 class WLDocument:
12     def __init__(self, filename=None, url=None, provider=None):
13         source = filename or six.moves.urllib.request.urlopen(url)
14         tree = etree.parse(source, parser=parser)
15         self.tree = tree
16         tree.getroot().document = self
17         self.base_meta = dcparser.BookInfo({}, {
18             DCNS('language'): ["pol"],
19         }, validate_required=False)
20
21         self.provider = provider if provider is not None else DirDocProvider('.')
22
23         self.tree.getroot().validate()
24
25     @property
26     def meta(self):
27         # Allow metadata of the master element as document meta.
28         #master = self.tree.getroot()[-1]
29         return self.tree.getroot().meta
30         return master.meta
31
32     @property
33     def children(self):
34         for part_uri in self.meta.parts or []:
35             yield type(self)(
36                 filename=self.provider.by_slug(part_uri.slug),
37                 provider=self.provider
38             )
39             
40     
41     def build(self, builder, base_url=None, **kwargs):
42         return builder(base_url=base_url).build(self, **kwargs)
43
44     def _compat_assign_ordered_ids(self):
45         """
46         Compatibility: ids in document order, to be roughly compatible with legacy
47         footnote ids. Just for testing consistency, change to some sane identifiers
48         at convenience.
49         """
50         EXPR = re.compile(r'/\s', re.MULTILINE | re.UNICODE)
51         def _compat_assign_ordered_ids_in_elem(elem, i):
52             elem.attrib['_compat_ordered_id'] = str(i)
53             i += 1
54             if getattr(elem, 'HTML_CLASS', None) == 'stanza':
55                 if elem.text:
56                     i += len(EXPR.split(elem.text)) - 1
57                 for sub in elem:
58                     i = _compat_assign_ordered_ids_in_elem(sub, i)
59                     if sub.tail:
60                         i += len(EXPR.split(sub.tail)) - 1
61             else:
62                 if elem.tag in ('uwaga', 'extra'):
63                     return i
64                 for sub in elem:
65                     i = _compat_assign_ordered_ids_in_elem(sub, i)
66             return i
67
68         _compat_assign_ordered_ids_in_elem(self.tree.getroot(), 4)
69
70     def _compat_assign_section_ids(self):
71         """
72         Ids in master-section order. These need to be compatible with the
73         #secN anchors used by WL search results page to link to fragments.
74         """
75         def _compat_assigns_section_ids_in_elem(elem, prefix='sec'):
76             for i, child in enumerate(elem):
77                 idfier = '{}{}'.format(prefix, i + 1)
78                 child.attrib['_compat_section_id'] = idfier
79                 _compat_assigns_section_ids_in_elem(child, idfier + '-')
80         _compat_assigns_section_ids_in_elem(self.tree.getroot().master)
81
82
83     def editors(self):
84         persons = set(self.meta.editors
85                       + self.meta.technical_editors)
86         for child in self.children:
87             persons.update(child.editors())
88         if None in persons:
89             persons.remove(None)
90         return persons
91