# Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.
#
from librarian import ValidationError, NoDublinCore, ParseError, NoProvider
-from librarian import RDFNS
+from librarian import RDFNS, IOFile
+from librarian.styles.wolnelektury.cover import WLCover
from librarian import dcparser
from xml.parsers.expat import ExpatError
LINE_SWAP_EXPR = re.compile(r'/\s', re.MULTILINE | re.UNICODE)
provider = None
- def __init__(self, edoc, parse_dublincore=True, provider=None, strict=False):
- self.edoc = edoc
- self.provider = provider
-
- root_elem = edoc.getroot()
-
- dc_path = './/' + RDFNS('RDF')
+ _edoc = None
+ @property
+ def edoc(self):
+ if self._edoc is None:
+ data = self.source.get_string()
+ if not isinstance(data, unicode):
+ data = data.decode('utf-8')
+ data = data.replace(u'\ufeff', '')
+ try:
+ parser = etree.XMLParser(remove_blank_text=False)
+ self._edoc = etree.parse(StringIO(data.encode('utf-8')), parser)
+ except (ExpatError, XMLSyntaxError, XSLTApplyError), e:
+ raise ParseError(e)
+ return self._edoc
+
+ _rdf_elem = None
+ @property
+ def rdf_elem(self):
+ if self._rdf_elem is None:
+ dc_path = './/' + RDFNS('RDF')
+ self._rdf_elem = self.edoc.getroot().find(dc_path)
+ if self._rdf_elem is None:
+ raise NoDublinCore('Document has no DublinCore - which is required.')
+ return self._rdf_elem
- if root_elem.tag != 'utwor':
+ _book_info = None
+ @property
+ def book_info(self):
+ if not self.parse_dublincore:
+ return None
+ if self._book_info is None:
+ self._book_info = dcparser.BookInfo.from_element(
+ self.rdf_elem, fallbacks=self.meta_fallbacks, strict=self.strict)
+ return self._book_info
+
+ def __init__(self, iofile, provider=None,
+ parse_dublincore=True, # shouldn't it be in a subclass?
+ strict=False, # ?
+ meta_fallbacks=None # ?
+ ):
+ self.source = iofile
+ self.provider = provider
+ self.parse_dublincore = parse_dublincore
+ self.strict = strict
+ self.meta_fallbacks = meta_fallbacks
+ if self.edoc.getroot().tag != 'utwor':
raise ValidationError("Invalid root element. Found '%s', should be 'utwor'" % root_elem.tag)
-
if parse_dublincore:
- self.rdf_elem = root_elem.find(dc_path)
-
- if self.rdf_elem is None:
- raise NoDublinCore('Document has no DublinCore - which is required.')
-
- self.book_info = dcparser.BookInfo.from_element(
- self.rdf_elem, strict=strict)
- else:
- self.book_info = None
+ self.book_info
@classmethod
def from_string(cls, xml, *args, **kwargs):
- return cls.from_file(StringIO(xml), *args, **kwargs)
+ return cls(IOFile.from_string(xml), *args, **kwargs)
@classmethod
- def from_file(cls, xmlfile, parse_dublincore=True, provider=None):
-
- # first, prepare for parsing
+ def from_file(cls, xmlfile, *args, **kwargs):
if isinstance(xmlfile, basestring):
- file = open(xmlfile, 'rb')
- try:
- data = file.read()
- finally:
- file.close()
+ iofile = IOFile.from_filename(xmlfile)
else:
- data = xmlfile.read()
-
- if not isinstance(data, unicode):
- data = data.decode('utf-8')
+ iofile = IOFile.from_file(xmlfile)
+ return cls(iofile, *args, **kwargs)
- data = data.replace(u'\ufeff', '')
-
- try:
- parser = etree.XMLParser(remove_blank_text=False)
- tree = etree.parse(StringIO(data.encode('utf-8')), parser)
-
- return cls(tree, parse_dublincore=parse_dublincore, provider=provider)
- except (ExpatError, XMLSyntaxError, XSLTApplyError), e:
- raise ParseError(e)
def swap_endlines(self):
"""Converts line breaks in stanzas into <br/> tags."""
elem.text = chunks.pop(0)
def parts(self):
- if self.provider is None:
- raise NoProvider('No document provider supplied.')
if self.book_info is None:
raise NoDublinCore('No Dublin Core in document.')
+ if self.book_info.parts and self.provider is None:
+ raise NoProvider('No document provider supplied.')
for part_uri in self.book_info.parts:
yield self.from_file(self.provider.by_uri(part_uri),
provider=self.provider)
xpath = self.path_to_xpath(key)
node = self.edoc.xpath(xpath)[0]
repl = etree.fromstring(u"<%s>%s</%s>" %(node.tag, data, node.tag) )
- node.getparent().replace(node, repl);
+ node.getparent().replace(node, repl)
except Exception, e:
unmerged.append( repr( (key, xpath, e) ) )
node.tag = 'span'
node.tail = tail
+ def editors(self):
+ """Returns a set of all editors for book and its children.
+
+ :returns: set of dcparser.Person objects
+ """
+ if self.book_info is None:
+ raise NoDublinCore('No Dublin Core in document.')
+ persons = set(self.book_info.editors +
+ self.book_info.technical_editors)
+ for child in self.parts():
+ persons.update(child.editors())
+ if None in persons:
+ persons.remove(None)
+ return persons
+
# Converters
def as_html(self, *args, **kwargs):
from librarian import fb2
return fb2.transform(self, *args, **kwargs)
+ def as_cover(self, cover_class=None, *args, **kwargs):
+ if cover_class is None:
+ cover_class = WLCover
+ return cover_class(self.book_info, *args, **kwargs).output_file()
+
def save_output_file(self, output_file, output_path=None,
output_dir_path=None, make_author_dir=False, ext=None):
if output_dir_path:
fnp / librarian.git / blobdiff