# This file is part of Librarian, licensed under GNU Affero GPLv3 or later.
# Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.
#
-from librarian import ValidationError, NoDublinCore, ParseError, NoProvider
-from librarian import RDFNS
-from librarian.cover import WLCover
+from librarian import ValidationError, NoDublinCore, ParseError
+from librarian import RDFNS, IOFile
from librarian import dcparser
from xml.parsers.expat import ExpatError
import re
from StringIO import StringIO
+
class WLDocument(object):
LINE_SWAP_EXPR = re.compile(r'/\s', re.MULTILINE | re.UNICODE)
provider = None
- def __init__(self, edoc, parse_dublincore=True, provider=None,
- strict=False, meta_fallbacks=None):
- self.edoc = edoc
- self.provider = provider
+ _edoc = None
- root_elem = edoc.getroot()
+ @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()
+ 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
- dc_path = './/' + RDFNS('RDF')
+ _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
+ root_elem = self.edoc.getroot()
if root_elem.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, fallbacks=meta_fallbacks, 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, *args, **kwargs):
-
- # first, prepare for parsing
- if isinstance(xmlfile, basestring):
- file = open(xmlfile, 'rb')
- try:
- data = file.read()
- finally:
- file.close()
- else:
- data = xmlfile.read()
-
- if not isinstance(data, unicode):
- data = data.decode('utf-8')
-
- 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, *args, **kwargs)
- except (ExpatError, XMLSyntaxError, XSLTApplyError), e:
- raise ParseError(e)
+ iofile = IOFile.from_filename(xmlfile)
+ return cls(iofile, *args, **kwargs)
def swap_endlines(self):
"""Converts line breaks in stanzas into <br/> tags."""
elem.insert(0, ins)
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.')
- for part_uri in self.book_info.parts:
- yield self.from_file(self.provider.by_uri(part_uri),
- provider=self.provider)
-
def chunk(self, path):
# convert the path to XPath
expr = self.path_to_xpath(path)
parts.append(part)
else:
tag, n = match.groups()
- parts.append("*[%d][name() = '%s']" % (int(n)+1, tag) )
+ parts.append("*[%d][name() = '%s']" % (int(n)+1, tag))
if parts[0] == '.':
parts[0] = ''
def update_dc(self):
if self.book_info:
parent = self.rdf_elem.getparent()
- parent.replace( self.rdf_elem, self.book_info.to_etree(parent) )
+ parent.replace(self.rdf_elem, self.book_info.to_etree(parent))
def serialize(self):
self.update_dc()
try:
xpath = self.path_to_xpath(key)
node = self.edoc.xpath(xpath)[0]
- repl = etree.fromstring(u"<%s>%s</%s>" %(node.tag, data, node.tag) )
+ repl = etree.fromstring(u"<%s>%s</%s>" % (node.tag, data, node.tag))
node.getparent().replace(node, repl)
except Exception, e:
- unmerged.append( repr( (key, xpath, e) ) )
+ # WTF xpath may be unused; also: too broad except
+ unmerged.append(repr((key, xpath, e)))
return unmerged
def clean_ed_note(self):
""" deletes forbidden tags from nota_red """
- for node in self.edoc.xpath('|'.join('//nota_red//%s' % tag for tag in
- ('pa', 'pe', 'pr', 'pt', 'begin', 'end', 'motyw'))):
+ forbidden_tags = ('pa', 'pe', 'pr', 'pt', 'begin', 'end', 'motyw')
+ for node in self.edoc.xpath('|'.join('//nota_red//%s' % tag for tag in forbidden_tags)):
tail = node.tail
node.clear()
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 html
+ from librarian import pyhtml as html
return html.transform(self, *args, **kwargs)
def as_text(self, *args, **kwargs):
return epub.transform(self, *args, **kwargs)
def as_pdf(self, *args, **kwargs):
- from librarian import pdf
- return pdf.transform(self, *args, **kwargs)
+ from librarian import pypdf
+ return pypdf.EduModulePDFFormat(self).build(*args, **kwargs)
def as_mobi(self, *args, **kwargs):
from librarian import mobi
def as_cover(self, cover_class=None, *args, **kwargs):
if cover_class is None:
+ from librarian.styles.wolnelektury.cover import WLCover
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):
+ def save_output_file(self, output_file, output_path=None, output_dir_path=None, make_author_dir=False, ext=None):
if output_dir_path:
save_path = output_dir_path
if make_author_dir:
- save_path = os.path.join(save_path,
- unicode(self.book_info.author).encode('utf-8'))
- save_path = os.path.join(save_path,
- self.book_info.uri.slug)
+ save_path = os.path.join(save_path, unicode(self.book_info.author).encode('utf-8'))
+ save_path = os.path.join(save_path, self.book_info.uri.slug)
if ext:
save_path += '.%s' % ext
else:
fnp / librarian.git / blobdiff