X-Git-Url: https://git.mdrn.pl/librarian.git/blobdiff_plain/4e329824f40367945de11d3647396859092f5c2c..fefdce4e24f9e397df5538fe6e7f54b5ece4d841:/librarian/parser.py?ds=sidebyside diff --git a/librarian/parser.py b/librarian/parser.py deleted file mode 100644 index 73ddd52..0000000 --- a/librarian/parser.py +++ /dev/null @@ -1,232 +0,0 @@ -# -*- coding: utf-8 -*- -# -# This file is part of Librarian, licensed under GNU Affero GPLv3 or later. -# Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information. -# -from __future__ import unicode_literals - -from librarian import ValidationError, NoDublinCore, ParseError, NoProvider -from librarian import RDFNS -from librarian.cover import make_cover -from librarian import dcparser - -from xml.parsers.expat import ExpatError -from lxml import etree -from lxml.etree import XMLSyntaxError, XSLTApplyError - -import os -import re -import six - - -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 - - root_elem = edoc.getroot() - - dc_path = './/' + RDFNS('RDF') - - 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 - - @classmethod - def from_bytes(cls, xml, *args, **kwargs): - return cls.from_file(six.BytesIO(xml), *args, **kwargs) - - @classmethod - def from_file(cls, xmlfile, *args, **kwargs): - - # first, prepare for parsing - if isinstance(xmlfile, six.text_type): - file = open(xmlfile, 'rb') - try: - data = file.read() - finally: - file.close() - else: - data = xmlfile.read() - - if not isinstance(data, six.text_type): - data = data.decode('utf-8') - - data = data.replace(u'\ufeff', '') - - try: - parser = etree.XMLParser(remove_blank_text=False) - tree = etree.parse(six.BytesIO(data.encode('utf-8')), parser) - - return cls(tree, *args, **kwargs) - except (ExpatError, XMLSyntaxError, XSLTApplyError) as e: - raise ParseError(e) - - def swap_endlines(self): - """Converts line breaks in stanzas into
tags.""" - # only swap inside stanzas - for elem in self.edoc.iter('strofa'): - for child in list(elem): - if child.tail: - chunks = self.LINE_SWAP_EXPR.split(child.tail) - ins_index = elem.index(child) + 1 - while len(chunks) > 1: - ins = etree.Element('br') - ins.tail = chunks.pop() - elem.insert(ins_index, ins) - child.tail = chunks.pop(0) - if elem.text: - chunks = self.LINE_SWAP_EXPR.split(elem.text) - while len(chunks) > 1: - ins = etree.Element('br') - ins.tail = chunks.pop() - 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) - elems = self.edoc.xpath(expr) - - if len(elems) == 0: - return None - else: - return elems[0] - - def path_to_xpath(self, path): - parts = [] - - for part in path.split('/'): - match = re.match(r'([^\[]+)\[(\d+)\]', part) - if not match: - parts.append(part) - else: - tag, n = match.groups() - parts.append("*[%d][name() = '%s']" % (int(n)+1, tag)) - - if parts[0] == '.': - parts[0] = '' - - return '/'.join(parts) - - def transform(self, stylesheet, **options): - return self.edoc.xslt(stylesheet, **options) - - def update_dc(self): - if self.book_info: - parent = self.rdf_elem.getparent() - parent.replace(self.rdf_elem, self.book_info.to_etree(parent)) - - def serialize(self): - self.update_dc() - return etree.tostring(self.edoc, encoding='unicode', pretty_print=True) - - def merge_chunks(self, chunk_dict): - unmerged = [] - - for key, data in chunk_dict.iteritems(): - try: - xpath = self.path_to_xpath(key) - node = self.edoc.xpath(xpath)[0] - repl = etree.fromstring(u"<%s>%s" % (node.tag, data, node.tag)) - node.getparent().replace(node, repl) - except Exception as e: - unmerged.append(repr((key, xpath, e))) - - return unmerged - - def clean_ed_note(self, note_tag='nota_red'): - """ deletes forbidden tags from nota_red """ - - for node in self.edoc.xpath('|'.join('//%s//%s' % (note_tag, tag) for tag in - ('pa', 'pe', 'pr', 'pt', 'begin', 'end', 'motyw'))): - 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 - return html.transform(self, *args, **kwargs) - - def as_text(self, *args, **kwargs): - from librarian import text - return text.transform(self, *args, **kwargs) - - def as_epub(self, *args, **kwargs): - from librarian import epub - return epub.transform(self, *args, **kwargs) - - def as_pdf(self, *args, **kwargs): - from librarian import pdf - return pdf.transform(self, *args, **kwargs) - - def as_mobi(self, *args, **kwargs): - from librarian import mobi - return mobi.transform(self, *args, **kwargs) - - def as_fb2(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 = make_cover - return cover_class(self.book_info, *args, **kwargs).output_file() - - # for debugging only - def latex_dir(self, *args, **kwargs): - kwargs['latex_dir'] = True - from librarian import pdf - return pdf.transform(self, *args, **kwargs) - - 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, six.text_type(self.book_info.author).encode('utf-8')) - save_path = os.path.join(save_path, self.book_info.url.slug) - if ext: - save_path += '.%s' % ext - else: - save_path = output_path - - output_file.save_as(save_path)