-
-
-def add_to_manifest(manifest, partno):
- """ Adds a node to the manifest section in content.opf file """
-
- partstr = 'part%d' % partno
- e = manifest.makeelement(
- OPFNS('item'), attrib={'id': partstr, 'href': partstr + '.html',
- 'media-type': 'application/xhtml+xml'}
- )
- manifest.append(e)
-
-
-def add_to_spine(spine, partno):
- """ Adds a node to the spine section in content.opf file """
-
- e = spine.makeelement(OPFNS('itemref'), attrib={'idref': 'part%d' % partno})
- spine.append(e)
-
-
-class TOC(object):
- def __init__(self, name=None, part_href=None):
- self.children = []
- self.name = name
- self.part_href = part_href
- self.sub_number = None
-
- def add(self, name, part_href, level=0, is_part=True, index=None):
- assert level == 0 or index is None
- if level > 0 and self.children:
- return self.children[-1].add(name, part_href, level - 1, is_part)
- else:
- t = TOC(name)
- t.part_href = part_href
- if index is not None:
- self.children.insert(index, t)
- else:
- self.children.append(t)
- if not is_part:
- t.sub_number = len(self.children) + 1
- return t.sub_number
-
- def append(self, toc):
- self.children.append(toc)
-
- def extend(self, toc):
- self.children.extend(toc.children)
-
- def depth(self):
- if self.children:
- return max((c.depth() for c in self.children)) + 1
- else:
- return 0
-
- def href(self):
- src = self.part_href
- if self.sub_number is not None:
- src += '#sub%d' % self.sub_number
- return src
-
- def write_to_xml(self, nav_map, counter=1):
- for child in self.children:
- nav_point = nav_map.makeelement(NCXNS('navPoint'))
- nav_point.set('id', 'NavPoint-%d' % counter)
- nav_point.set('playOrder', str(counter))
-
- nav_label = nav_map.makeelement(NCXNS('navLabel'))
- text = nav_map.makeelement(NCXNS('text'))
- if child.name is not None:
- text.text = re.sub(r'\n', ' ', child.name)
- else:
- text.text = child.name
- nav_label.append(text)
- nav_point.append(nav_label)
-
- content = nav_map.makeelement(NCXNS('content'))
- content.set('src', child.href())
- nav_point.append(content)
- nav_map.append(nav_point)
- counter = child.write_to_xml(nav_point, counter + 1)
- return counter
-
- def html_part(self, depth=0):
- texts = []
- for child in self.children:
- texts.append(
- "<div style='margin-left:%dem;'><a href='%s'>%s</a></div>" %
- (depth, child.href(), child.name))
- texts.append(child.html_part(depth + 1))
- return "\n".join(texts)
-
- def html(self):
- with open(get_resource('epub/toc.html'), 'rb') as f:
- t = f.read().decode('utf-8')
- return t % self.html_part()
-
-
-def used_chars(element):
- """ Lists characters used in an ETree Element """
- chars = set((element.text or '') + (element.tail or ''))
- for child in element:
- chars = chars.union(used_chars(child))
- return chars
-
-
-def chop(main_text):
- """ divide main content of the XML file into chunks """
-
- # prepare a container for each chunk
- part_xml = etree.Element('utwor')
- etree.SubElement(part_xml, 'master')
- main_xml_part = part_xml[0] # master
-
- last_node_part = False
-
- # the below loop are workaround for a problem with epubs in drama ebooks without acts
- is_scene = False
- is_act = False
- for one_part in main_text:
- name = one_part.tag
- if name == 'naglowek_scena':
- is_scene = True
- elif name == 'naglowek_akt':
- is_act = True
-
- for one_part in main_text:
- name = one_part.tag
- if is_act is False and is_scene is True:
- if name == 'naglowek_czesc':
- yield part_xml
- last_node_part = True
- main_xml_part[:] = [deepcopy(one_part)]
- elif not last_node_part and name == "naglowek_scena":
- yield part_xml
- main_xml_part[:] = [deepcopy(one_part)]
- else:
- main_xml_part.append(deepcopy(one_part))
- last_node_part = False
- else:
- if name == 'naglowek_czesc':
- yield part_xml
- last_node_part = True
- main_xml_part[:] = [deepcopy(one_part)]
- elif not last_node_part and name in ("naglowek_rozdzial", "naglowek_akt", "srodtytul"):
- yield part_xml
- main_xml_part[:] = [deepcopy(one_part)]
- else:
- main_xml_part.append(deepcopy(one_part))
- last_node_part = False
- yield part_xml
-
-
-def transform_chunk(chunk_xml, chunk_no, annotations, empty=False, _empty_html_static=[]):
- """ transforms one chunk, returns a HTML string, a TOC object and a set of used characters """
-
- toc = TOC()
- for element in chunk_xml[0]:
- if element.tag == "naglowek_czesc":
- toc.add(node_name(element), "part%d.html#book-text" % chunk_no)
- elif element.tag in ("naglowek_rozdzial", "naglowek_akt", "srodtytul"):
- toc.add(node_name(element), "part%d.html" % chunk_no)
- elif element.tag in ('naglowek_podrozdzial', 'naglowek_scena'):
- subnumber = toc.add(node_name(element), "part%d.html" % chunk_no, level=1, is_part=False)
- element.set('sub', str(subnumber))
- if empty:
- if not _empty_html_static:
- _empty_html_static.append(open(get_resource('epub/emptyChunk.html')).read())
- chars = set()
- output_html = _empty_html_static[0]
- else:
- find_annotations(annotations, chunk_xml, chunk_no)
- replace_by_verse(chunk_xml)
- html_tree = xslt(chunk_xml, get_resource('epub/xsltScheme.xsl'))
- chars = used_chars(html_tree.getroot())
- output_html = etree.tostring(
- html_tree, pretty_print=True, xml_declaration=True,
- encoding="utf-8",
- doctype='<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" ' +
- '"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">'
- )
- return output_html, toc, chars
-
-
-def transform(wldoc, verbose=False, style=None, html_toc=False,
- sample=None, cover=None, flags=None, hyphenate=False, ilustr_path='', output_type='epub'):
- """ produces a EPUB file
-
- sample=n: generate sample e-book (with at least n paragraphs)
- cover: a cover.Cover factory or True for default
- flags: less-advertising, without-fonts, working-copy
- """
-
- def transform_file(wldoc, chunk_counter=1, first=True, sample=None):
- """ processes one input file and proceeds to its children """
-
- replace_characters(wldoc.edoc.getroot())
-
- hyphenator = set_hyph_language(wldoc.edoc.getroot()) if hyphenate else None
- hyphenate_and_fix_conjunctions(wldoc.edoc.getroot(), hyphenator)
-
- # every input file will have a TOC entry,
- # pointing to starting chunk
- toc = TOC(wldoc.book_info.title, "part%d.html" % chunk_counter)
- chars = set()
- if first:
- # write book title page
- html_tree = xslt(wldoc.edoc, get_resource('epub/xsltTitle.xsl'), outputtype=output_type)
- chars = used_chars(html_tree.getroot())
- html_string = etree.tostring(
- html_tree, pretty_print=True, xml_declaration=True,
- encoding="utf-8",
- doctype='<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN"' +
- ' "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">'
- )
- zip.writestr('OPS/title.html', squeeze_whitespace(html_string))
- # add a title page TOC entry
- toc.add(u"Strona tytułowa", "title.html")
- elif wldoc.book_info.parts:
- # write title page for every parent
- if sample is not None and sample <= 0:
- chars = set()
- html_string = open(get_resource('epub/emptyChunk.html')).read()
- else:
- html_tree = xslt(wldoc.edoc, get_resource('epub/xsltChunkTitle.xsl'))
- chars = used_chars(html_tree.getroot())
- html_string = etree.tostring(
- html_tree, pretty_print=True, xml_declaration=True,
- encoding="utf-8",
- doctype='<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN"' +
- ' "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">'
- )
- zip.writestr('OPS/part%d.html' % chunk_counter, squeeze_whitespace(html_string))
- add_to_manifest(manifest, chunk_counter)
- add_to_spine(spine, chunk_counter)
- chunk_counter += 1
-
- if len(wldoc.edoc.getroot()) > 1:
- # rdf before style master
- main_text = wldoc.edoc.getroot()[1]
- else:
- # rdf in style master
- main_text = wldoc.edoc.getroot()[0]
- if main_text.tag == RDFNS('RDF'):
- main_text = None
-
- if main_text is not None:
- for chunk_xml in chop(main_text):
- empty = False
- if sample is not None:
- if sample <= 0:
- empty = True
- else:
- sample -= len(chunk_xml.xpath('//strofa|//akap|//akap_cd|//akap_dialog'))
- chunk_html, chunk_toc, chunk_chars = transform_chunk(chunk_xml, chunk_counter, annotations, empty)
-
- toc.extend(chunk_toc)
- chars = chars.union(chunk_chars)
- zip.writestr('OPS/part%d.html' % chunk_counter, squeeze_whitespace(chunk_html))
- add_to_manifest(manifest, chunk_counter)
- add_to_spine(spine, chunk_counter)
- chunk_counter += 1
-
- for child in wldoc.parts():
- child_toc, chunk_counter, chunk_chars, sample = transform_file(
- child, chunk_counter, first=False, sample=sample)
- toc.append(child_toc)
- chars = chars.union(chunk_chars)
-
- return toc, chunk_counter, chars, sample
-
- document = deepcopy(wldoc)
- del wldoc
-
- if flags:
- for flag in flags:
- document.edoc.getroot().set(flag, 'yes')
-
- document.clean_ed_note()
- document.clean_ed_note('abstrakt')
-
- # add editors info
- editors = document.editors()
- if editors:
- document.edoc.getroot().set('editors', u', '.join(sorted(
- editor.readable() for editor in editors)))
- if document.book_info.funders:
- document.edoc.getroot().set('funders', u', '.join(
- document.book_info.funders))
- if document.book_info.thanks:
- document.edoc.getroot().set('thanks', document.book_info.thanks)
-
- opf = xslt(document.book_info.to_etree(), get_resource('epub/xsltContent.xsl'))
- manifest = opf.find('.//' + OPFNS('manifest'))
- guide = opf.find('.//' + OPFNS('guide'))
- spine = opf.find('.//' + OPFNS('spine'))
-
- output_file = NamedTemporaryFile(prefix='librarian', suffix='.epub', delete=False)
- zip = zipfile.ZipFile(output_file, 'w', zipfile.ZIP_DEFLATED)
-
- functions.reg_mathml_epub(zip)
-
- if os.path.isdir(ilustr_path):
- ilustr_elements = set(ilustr.get('src') for ilustr in document.edoc.findall('//ilustr'))
- for i, filename in enumerate(os.listdir(ilustr_path)):
- if filename not in ilustr_elements:
- continue
- file_path = os.path.join(ilustr_path, filename)
- zip.write(file_path, os.path.join('OPS', filename))
- image_id = 'image%s' % i
- manifest.append(etree.fromstring(
- '<item id="%s" href="%s" media-type="%s" />' % (image_id, filename, guess_type(file_path)[0])))
-
- # write static elements
- mime = zipfile.ZipInfo()
- mime.filename = 'mimetype'
- mime.compress_type = zipfile.ZIP_STORED
- mime.extra = b''
- zip.writestr(mime, b'application/epub+zip')
- zip.writestr(
- 'META-INF/container.xml',
- b'<?xml version="1.0" ?>'
- b'<container version="1.0" '
- b'xmlns="urn:oasis:names:tc:opendocument:xmlns:container">'
- b'<rootfiles><rootfile full-path="OPS/content.opf" '
- b'media-type="application/oebps-package+xml" />'
- b'</rootfiles></container>'
- )
- zip.write(get_resource('res/wl-logo-small.png'),
- os.path.join('OPS', 'logo_wolnelektury.png'))
- zip.write(get_resource('res/jedenprocent.png'),
- os.path.join('OPS', 'jedenprocent.png'))
- if not style:
- style = get_resource('epub/style.css')
- zip.write(style, os.path.join('OPS', 'style.css'))
-
- if cover:
- if cover is True:
- cover = make_cover
-
- cover_file = BytesIO()
- bound_cover = cover(document.book_info)
- bound_cover.save(cover_file)
- cover_name = 'cover.%s' % bound_cover.ext()
- zip.writestr(os.path.join('OPS', cover_name), cover_file.getvalue())
- del cover_file
-
- cover_tree = etree.parse(get_resource('epub/cover.html'))
- cover_tree.find('//' + XHTMLNS('img')).set('src', cover_name)
- zip.writestr('OPS/cover.html', etree.tostring(
- cover_tree, pretty_print=True, xml_declaration=True,
- encoding="utf-8",
- doctype='<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" ' +
- '"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">'
- ))
-
- if bound_cover.uses_dc_cover:
- if document.book_info.cover_by:
- document.edoc.getroot().set('data-cover-by', document.book_info.cover_by)
- if document.book_info.cover_source:
- document.edoc.getroot().set('data-cover-source', document.book_info.cover_source)
-
- manifest.append(etree.fromstring(
- '<item id="cover" href="cover.html" media-type="application/xhtml+xml" />'))
- manifest.append(etree.fromstring(
- '<item id="cover-image" href="%s" media-type="%s" />' % (cover_name, bound_cover.mime_type())))
- spine.insert(0, etree.fromstring('<itemref idref="cover"/>'))
- opf.getroot()[0].append(etree.fromstring('<meta name="cover" content="cover-image"/>'))
- guide.append(etree.fromstring('<reference href="cover.html" type="cover" title="Okładka"/>'))
-
- annotations = etree.Element('annotations')
-
- toc_file = etree.fromstring(
- b'<?xml version="1.0" encoding="utf-8"?><!DOCTYPE ncx PUBLIC '
- b'"-//NISO//DTD ncx 2005-1//EN" '
- b'"http://www.daisy.org/z3986/2005/ncx-2005-1.dtd">'
- b'<ncx xmlns="http://www.daisy.org/z3986/2005/ncx/" xml:lang="pl" '
- b'version="2005-1"><head></head><docTitle></docTitle><navMap>'
- b'</navMap></ncx>'
- )
- nav_map = toc_file[-1]
-
- if html_toc:
- manifest.append(etree.fromstring(
- '<item id="html_toc" href="toc.html" media-type="application/xhtml+xml" />'))
- spine.append(etree.fromstring(
- '<itemref idref="html_toc" />'))
- guide.append(etree.fromstring('<reference href="toc.html" type="toc" title="Spis treści"/>'))
-
- toc, chunk_counter, chars, sample = transform_file(document, sample=sample)
-
- if len(toc.children) < 2:
- toc.add(u"Początek utworu", "part1.html")
-
- # Last modifications in container files and EPUB creation
- if len(annotations) > 0:
- toc.add("Przypisy", "annotations.html")
- manifest.append(etree.fromstring(
- '<item id="annotations" href="annotations.html" media-type="application/xhtml+xml" />'))
- spine.append(etree.fromstring(
- '<itemref idref="annotations" />'))
- replace_by_verse(annotations)
- html_tree = xslt(annotations, get_resource('epub/xsltAnnotations.xsl'))
- chars = chars.union(used_chars(html_tree.getroot()))
- zip.writestr('OPS/annotations.html', etree.tostring(
- html_tree, pretty_print=True, xml_declaration=True,
- encoding="utf-8",
- doctype='<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" ' +
- '"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">'
- ))
-
- toc.add("Wesprzyj Wolne Lektury", "support.html")
- manifest.append(etree.fromstring(
- '<item id="support" href="support.html" media-type="application/xhtml+xml" />'))
- spine.append(etree.fromstring(
- '<itemref idref="support" />'))
- html_string = open(get_resource('epub/support.html'), 'rb').read()
- chars.update(used_chars(etree.fromstring(html_string)))
- zip.writestr('OPS/support.html', squeeze_whitespace(html_string))
-
- toc.add("Strona redakcyjna", "last.html")
- manifest.append(etree.fromstring(
- '<item id="last" href="last.html" media-type="application/xhtml+xml" />'))
- spine.append(etree.fromstring(
- '<itemref idref="last" />'))
- html_tree = xslt(document.edoc, get_resource('epub/xsltLast.xsl'), outputtype=output_type)
- chars.update(used_chars(html_tree.getroot()))
- zip.writestr('OPS/last.html', squeeze_whitespace(etree.tostring(
- html_tree, pretty_print=True, xml_declaration=True,
- encoding="utf-8",
- doctype='<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" ' +
- '"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">'
- )))
-
- if not flags or 'without-fonts' not in flags:
- # strip fonts
- tmpdir = mkdtemp('-librarian-epub')
- try:
- cwd = os.getcwd()
- except OSError:
- cwd = None
-
- os.chdir(os.path.join(os.path.dirname(os.path.realpath(__file__)), 'font-optimizer'))
- for fname in 'DejaVuSerif.ttf', 'DejaVuSerif-Bold.ttf', 'DejaVuSerif-Italic.ttf', 'DejaVuSerif-BoldItalic.ttf':
- optimizer_call = ['perl', 'subset.pl', '--chars',
- ''.join(chars).encode('utf-8'),
- get_resource('fonts/' + fname),
- os.path.join(tmpdir, fname)]
- env = {"PERL_USE_UNSAFE_INC": "1"}
- if verbose:
- print("Running font-optimizer")
- subprocess.check_call(optimizer_call, env=env)
- else:
- dev_null = open(os.devnull, 'w')
- subprocess.check_call(optimizer_call, stdout=dev_null, stderr=dev_null, env=env)
- zip.write(os.path.join(tmpdir, fname), os.path.join('OPS', fname))
- manifest.append(etree.fromstring(
- '<item id="%s" href="%s" media-type="application/x-font-truetype" />' % (fname, fname)))
- rmtree(tmpdir)
- if cwd is not None:
- os.chdir(cwd)
- zip.writestr('OPS/content.opf', etree.tostring(opf, pretty_print=True,
- xml_declaration=True, encoding="utf-8"))
- title = document.book_info.title
- attributes = "dtb:uid", "dtb:depth", "dtb:totalPageCount", "dtb:maxPageNumber"
- for st in attributes:
- meta = toc_file.makeelement(NCXNS('meta'))
- meta.set('name', st)
- meta.set('content', '0')
- toc_file[0].append(meta)
- toc_file[0][0].set('content', str(document.book_info.url))
- toc_file[0][1].set('content', str(toc.depth()))
- set_inner_xml(toc_file[1], ''.join(('<text>', title, '</text>')))
-
- # write TOC
- if html_toc:
- toc.add(u"Spis treści", "toc.html", index=1)
- zip.writestr('OPS/toc.html', toc.html().encode('utf-8'))
- toc.write_to_xml(nav_map)
- zip.writestr('OPS/toc.ncx', etree.tostring(toc_file, pretty_print=True,
- xml_declaration=True, encoding="utf-8"))
- zip.close()
-
- return OutputFile.from_filename(output_file.name)
fnp / librarian.git / blobdiff