[epub, mobi] - xsl output impovements required for better annotation visual renderin...

[librarian.git] / librarian / epub.py

diff --git a/librarian/epub.py b/librarian/epub.py
index a87e1d8..08e181e 100644 (file)
--- a/librarian/epub.py
+++ b/librarian/epub.py
@@ -7,24 +7,60 @@ from __future__ import with_statement
 
 import os
 import os.path
 
 import os
 import os.path

+import re

 import subprocess
 from StringIO import StringIO
 from copy import deepcopy
 from lxml import etree
 import zipfile
 import subprocess
 from StringIO import StringIO
 from copy import deepcopy
 from lxml import etree
 import zipfile

-from tempfile import mkdtemp
+from tempfile import mkdtemp, NamedTemporaryFile

 from shutil import rmtree
 
 from shutil import rmtree
 

-import sys
-
-from librarian import XMLNamespace, RDFNS, DCNS, WLNS, NCXNS, OPFNS, NoDublinCore
-from librarian.dcparser import BookInfo
+from librarian import RDFNS, WLNS, NCXNS, OPFNS, XHTMLNS, DCNS, OutputFile
+from librarian.cover import DefaultEbookCover

 
 from librarian import functions, get_resource
 
 
 from librarian import functions, get_resource
 

-functions.reg_person_name()
-
+from librarian.hyphenator import Hyphenator

 
 

+functions.reg_person_name()
+functions.reg_lang_code_3to2()
+
+def set_hyph_language(source_tree):
+    def get_short_lng_code(text):
+        result = ''
+        text = ''.join(text)
+        with open(get_resource('res/ISO-639-2_8859-1.txt'), 'rb') as f:
+            for line in f:
+                list = line.strip().split('|')
+                if list[0] == text:
+                    result=list[2]
+        if result == '':
+            return text
+        else:
+            return result
+    bibl_lng = etree.XPath('//dc:language//text()', namespaces = {'dc':str(DCNS)})(source_tree)
+    short_lng = get_short_lng_code(bibl_lng[0])   
+    try:
+        return Hyphenator(get_resource('res/hyph-dictionaries/hyph_' + short_lng + '.dic'))
+    except:
+        pass
+    
+def hyphenate_and_fix_conjunctions(source_tree, hyph):
+    if hyph is not None:
+        texts = etree.XPath('/utwor/*[2]//text()')(source_tree)
+        for t in texts:
+            parent = t.getparent()
+            newt = ''
+            wlist = re.compile(r'\w+|[^\w]', re.UNICODE).findall(t)
+            for w in wlist:
+                newt += hyph.inserted(w, u'\u00AD')       
+            newt = re.sub(r'(?<=\s\w)\s+', u'\u00A0', newt)
+            if t.is_text:
+                parent.text = newt
+            elif t.is_tail:
+                parent.tail = newt
+        

 def inner_xml(node):
     """ returns node's text and children as a string
 
 def inner_xml(node):
     """ returns node's text and children as a string
 


@@ -84,13 +120,14 @@ def replace_characters(node):
                    .replace(",,", u"\u201E")\
                    .replace('"', u"\u201D")\
                    .replace("'", u"\u2019")
                    .replace(",,", u"\u201E")\
                    .replace('"', u"\u201D")\
                    .replace("'", u"\u2019")

-    if node.tag == 'extra':
+    if node.tag in ('uwaga', 'extra'):
+        t = node.tail

         node.clear()
         node.clear()

-    else:
-        node.text = replace_chars(node.text)
-        node.tail = replace_chars(node.tail)
-        for child in node:
-            replace_characters(child)
+        node.tail = t
+    node.text = replace_chars(node.text)
+    node.tail = replace_chars(node.tail)
+    for child in node:
+        replace_characters(child)

 
 
 def find_annotations(annotations, source, part_no):
 
 
 def find_annotations(annotations, source, part_no):


@@ -106,35 +143,78 @@ def find_annotations(annotations, source, part_no):
             child.clear()
             child.tail = tail
             child.text = number
             child.clear()
             child.tail = tail
             child.text = number

-        if child.tag not in ('extra',):
+        if child.tag not in ('extra', 'uwaga'):

             find_annotations(annotations, child, part_no)
 
 
             find_annotations(annotations, child, part_no)
 
 

+class Stanza(object):
+    """
+    Converts / verse endings into verse elements in a stanza.
+
+    Slashes may only occur directly in the stanza. Any slashes in subelements
+    will be ignored, and the subelements will be put inside verse elements.
+
+    >>> s = etree.fromstring("<strofa>a <b>c</b> <b>c</b>/\\nb<x>x/\\ny</x>c/ \\nd</strofa>")
+    >>> Stanza(s).versify()
+    >>> print etree.tostring(s)
+    <strofa><wers_normalny>a <b>c</b> <b>c</b></wers_normalny><wers_normalny>b<x>x/
+    y</x>c</wers_normalny><wers_normalny>d</wers_normalny></strofa>
+    
+    """
+    def __init__(self, stanza_elem):
+        self.stanza = stanza_elem
+        self.verses = []
+        self.open_verse = None
+
+    def versify(self):
+        self.push_text(self.stanza.text)
+        for elem in self.stanza:
+            self.push_elem(elem)
+            self.push_text(elem.tail)
+        tail = self.stanza.tail
+        self.stanza.clear()
+        self.stanza.tail = tail
+        self.stanza.extend(self.verses)
+
+    def open_normal_verse(self):
+        self.open_verse = self.stanza.makeelement("wers_normalny")
+        self.verses.append(self.open_verse)
+
+    def get_open_verse(self):
+        if self.open_verse is None:
+            self.open_normal_verse()
+        return self.open_verse
+
+    def push_text(self, text):
+        if not text:
+            return
+        for i, verse_text in enumerate(re.split(r"/\s*\n", text)):
+            if i:
+                self.open_normal_verse()
+            verse = self.get_open_verse()
+            if len(verse):
+                verse[-1].tail = (verse[-1].tail or "") + verse_text
+            else:
+                verse.text = (verse.text or "") + verse_text
+
+    def push_elem(self, elem):
+        if elem.tag.startswith("wers"):
+            verse = deepcopy(elem)
+            verse.tail = None
+            self.verses.append(verse)
+            self.open_verse = verse
+        else:
+            appended = deepcopy(elem)
+            appended.tail = None
+            self.get_open_verse().append(appended)
+
+

 def replace_by_verse(tree):
     """ Find stanzas and create new verses in place of a '/' character """
 
     stanzas = tree.findall('.//' + WLNS('strofa'))
 def replace_by_verse(tree):
     """ Find stanzas and create new verses in place of a '/' character """
 
     stanzas = tree.findall('.//' + WLNS('strofa'))

-    for node in stanzas:
-        for child_node in node:
-            if child_node.tag in ('slowo_obce', 'wyroznienie'):
-                foreign_verses = inner_xml(child_node).split('/\n')
-                if len(foreign_verses) > 1:
-                    new_foreign = ''
-                    for foreign_verse in foreign_verses:
-                        if foreign_verse.startswith('<wers'):
-                            new_foreign += foreign_verse
-                        else:
-                            new_foreign += ''.join(('<wers_normalny>', foreign_verse, '</wers_normalny>'))
-                    set_inner_xml(child_node, new_foreign)
-        verses = inner_xml(node).split('/\n')
-        if len(verses) > 1:
-            modified_inner_xml = ''
-            for verse in verses:
-                if verse.startswith('<wers') or verse.startswith('<extra'):
-                    modified_inner_xml += verse
-                else:
-                    modified_inner_xml += ''.join(('<wers_normalny>', verse, '</wers_normalny>'))
-            set_inner_xml(node, modified_inner_xml)
+    for stanza in stanzas:
+        Stanza(stanza).versify()

 
 
 def add_to_manifest(manifest, partno):
 
 
 def add_to_manifest(manifest, partno):


@@ -157,19 +237,23 @@ def add_to_spine(spine, partno):
 
 
 class TOC(object):
 
 
 class TOC(object):

-    def __init__(self, name=None, part_number=None):
+    def __init__(self, name=None, part_href=None):

         self.children = []
         self.name = name
         self.children = []
         self.name = name

-        self.part_number = part_number
+        self.part_href = part_href

         self.sub_number = None
 
         self.sub_number = None
 

-    def add(self, name, part_number, level=0, is_part=True):
+    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:
         if level > 0 and self.children:

-            return self.children[-1].add(name, part_number, level-1, is_part)
+            return self.children[-1].add(name, part_href, level-1, is_part)

         else:
             t = TOC(name)
         else:
             t = TOC(name)

-            t.part_number = part_number
-            self.children.append(t)
+            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
             if not is_part:
                 t.sub_number = len(self.children) + 1
                 return t.sub_number


@@ -186,7 +270,13 @@ class TOC(object):
         else:
             return 0
 
         else:
             return 0
 

-    def write_to_xml(self, nav_map, counter):
+    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)
         for child in self.children:
             nav_point = nav_map.makeelement(NCXNS('navPoint'))
             nav_point.set('id', 'NavPoint-%d' % counter)


@@ -194,20 +284,34 @@ class TOC(object):
 
             nav_label = nav_map.makeelement(NCXNS('navLabel'))
             text = nav_map.makeelement(NCXNS('text'))
 
             nav_label = nav_map.makeelement(NCXNS('navLabel'))
             text = nav_map.makeelement(NCXNS('text'))

-            text.text = child.name
+            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'))
             nav_label.append(text)
             nav_point.append(nav_label)
 
             content = nav_map.makeelement(NCXNS('content'))

-            src = 'part%d.html' % child.part_number
-            if child.sub_number is not None:
-                src += '#sub%d' % child.sub_number
-            content.set('src', src)
+            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
 
             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')) as f:
+            t = unicode(f.read(), 'utf-8')
+        return t % self.html_part()
+

 
 def used_chars(element):
     """ Lists characters used in an ETree Element """
 
 def used_chars(element):
     """ Lists characters used in an ETree Element """


@@ -226,18 +330,41 @@ def chop(main_text):
     main_xml_part = part_xml[0] # master
 
     last_node_part = False
     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
     for one_part in main_text:
         name = one_part.tag

-        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)]
+        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:
         else:

-            main_xml_part.append(deepcopy(one_part))
-            last_node_part = False
+            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
 
 
     yield part_xml
 
 


@@ -246,10 +373,12 @@ def transform_chunk(chunk_xml, chunk_no, annotations, empty=False, _empty_html_s
 
     toc = TOC()
     for element in chunk_xml[0]:
 
     toc = TOC()
     for element in chunk_xml[0]:

-        if element.tag in ("naglowek_czesc", "naglowek_rozdzial", "naglowek_akt", "srodtytul"):
-            toc.add(node_name(element), chunk_no)
+        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'):
         elif element.tag in ('naglowek_podrozdzial', 'naglowek_scena'):

-            subnumber = toc.add(node_name(element), chunk_no, level=1, is_part=False)
+            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:
             element.set('sub', str(subnumber))
     if empty:
         if not _empty_html_static:


@@ -261,61 +390,61 @@ def transform_chunk(chunk_xml, chunk_no, annotations, empty=False, _empty_html_s
         replace_by_verse(chunk_xml)
         html_tree = xslt(chunk_xml, get_resource('epub/xsltScheme.xsl'))
         chars = used_chars(html_tree.getroot())
         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, method="html", pretty_print=True)
+        output_html = etree.tostring(html_tree, method="html", encoding='UTF-8', pretty_print=True)

     return output_html, toc, chars
 
 
     return output_html, toc, chars
 
 

-def transform(provider, slug=None, file_path=None, output_file=None, output_dir=None, make_dir=False, verbose=False,
-              sample=None, cover_fn=None, flags=None):
+def transform(wldoc, verbose=False,
+              style=None, html_toc=False,
+              sample=None, cover=None, flags=None):

     """ produces a EPUB file
 
     """ produces a EPUB file
 

-    provider: a DocProvider
-    slug: slug of file to process, available by provider
-    output_file: file-like object or path to output file
-    output_dir: path to directory to save output file to; either this or output_file must be present
-    make_dir: writes output to <output_dir>/<author>/<slug>.epub instead of <output_dir>/<slug>.epub

     sample=n: generate sample e-book (with at least n paragraphs)
     sample=n: generate sample e-book (with at least n paragraphs)

-    cover_fn: function(author, title) -> cover image
-    flags: less-advertising,
+    cover: a cover.Cover factory or True for default
+    flags: less-advertising, without-fonts, working-copy, with-full-fonts

     """
 
     """
 

-    def transform_file(input_xml, chunk_counter=1, first=True, sample=None):
+    def transform_file(wldoc, chunk_counter=1, first=True, sample=None):

         """ processes one input file and proceeds to its children """
 
         """ processes one input file and proceeds to its children """
 

-        replace_characters(input_xml.getroot())
-
-        children = [child.text for child in input_xml.findall('.//'+DCNS('relation.hasPart'))]
-
+        replace_characters(wldoc.edoc.getroot())
+        
+        hyphenator = set_hyph_language(wldoc.edoc.getroot())
+        hyphenate_and_fix_conjunctions(wldoc.edoc.getroot(), hyphenator)
+        
+        

         # every input file will have a TOC entry,
         # pointing to starting chunk
         # every input file will have a TOC entry,
         # pointing to starting chunk

-        toc = TOC(node_name(input_xml.find('.//'+DCNS('title'))), chunk_counter)
+        toc = TOC(wldoc.book_info.title, "part%d.html" % chunk_counter)

         chars = set()
         if first:
             # write book title page
         chars = set()
         if first:
             # write book title page

-            html_tree = xslt(input_xml, get_resource('epub/xsltTitle.xsl'))
+            html_tree = xslt(wldoc.edoc, get_resource('epub/xsltTitle.xsl'))

             chars = used_chars(html_tree.getroot())
             zip.writestr('OPS/title.html',
             chars = used_chars(html_tree.getroot())
             zip.writestr('OPS/title.html',

-                 etree.tostring(html_tree, method="html", pretty_print=True))
-        elif children:
+                 etree.tostring(html_tree, method="html", encoding='UTF-8', pretty_print=True))
+            # 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:
             # 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(input_xml, get_resource('epub/xsltChunkTitle.xsl'))
+                html_tree = xslt(wldoc.edoc, get_resource('epub/xsltChunkTitle.xsl'))

                 chars = used_chars(html_tree.getroot())
                 chars = used_chars(html_tree.getroot())

-                html_string = etree.tostring(html_tree, method="html", pretty_print=True)
+                html_string = etree.tostring(html_tree, method="html", encoding='UTF-8', pretty_print=True)

             zip.writestr('OPS/part%d.html' % chunk_counter, html_string)
             add_to_manifest(manifest, chunk_counter)
             add_to_spine(spine, chunk_counter)
             chunk_counter += 1
 
             zip.writestr('OPS/part%d.html' % chunk_counter, html_string)
             add_to_manifest(manifest, chunk_counter)
             add_to_spine(spine, chunk_counter)
             chunk_counter += 1
 

-        if len(input_xml.getroot()) > 1:
+        if len(wldoc.edoc.getroot()) > 1:

             # rdf before style master
             # rdf before style master

-            main_text = input_xml.getroot()[1]
+            main_text = wldoc.edoc.getroot()[1]

         else:
             # rdf in style master
         else:
             # rdf in style master

-            main_text = input_xml.getroot()[0]
+            main_text = wldoc.edoc.getroot()[0]

             if main_text.tag == RDFNS('RDF'):
                 main_text = None
 
             if main_text.tag == RDFNS('RDF'):
                 main_text = None
 


@@ -336,51 +465,37 @@ def transform(provider, slug=None, file_path=None, output_file=None, output_dir=
                 add_to_spine(spine, chunk_counter)
                 chunk_counter += 1
 
                 add_to_spine(spine, chunk_counter)
                 chunk_counter += 1
 

-        if children:
-            for child in children:
-                child_xml = etree.parse(provider.by_uri(child))
-                child_toc, chunk_counter, chunk_chars, sample = transform_file(child_xml, chunk_counter, first=False, sample=sample)
-                toc.append(child_toc)
-                chars = chars.union(chunk_chars)
+        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
 
 
         return toc, chunk_counter, chars, sample
 

-    # read metadata from the first file
-    if file_path:
-        if slug:
-            raise ValueError('slug or file_path should be specified, not both')
-        f = open(file_path, 'r')
-        input_xml = etree.parse(f)
-        f.close()
-    else:
-        if not slug:
-            raise ValueError('either slug or file_path should be specified')
-        input_xml = etree.parse(provider[slug])
+
+    document = deepcopy(wldoc)
+    del wldoc

 
     if flags:
         for flag in flags:
 
     if flags:
         for flag in flags:

-            input_xml.getroot().set(flag, 'yes')
-
-    metadata = input_xml.find('.//'+RDFNS('Description'))
-    if metadata is None:
-        raise NoDublinCore('Document has no DublinCore - which is required.')
-    book_info = BookInfo.from_element(input_xml)
-    metadata = etree.ElementTree(metadata)
-
-    # if output to dir, create the file
-    if output_dir is not None:
-        if make_dir:
-            author = unicode(book_info.author)
-            output_dir = os.path.join(output_dir, author)
-            try:
-                os.makedirs(output_dir)
-            except OSError:
-                pass
-        if slug:
-            output_file = open(os.path.join(output_dir, '%s.epub' % slug), 'w')
-        else:
-            output_file = open(os.path.join(output_dir, os.path.splitext(os.path.basename(file_path))[0] + '.epub'), 'w')
+            document.edoc.getroot().set(flag, 'yes')
+
+    # add editors info
+    document.edoc.getroot().set('editors', u', '.join(sorted(
+        editor.readable() for editor in document.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)
 
     # write static elements
     zip = zipfile.ZipFile(output_file, 'w', zipfile.ZIP_DEFLATED)
 
     # write static elements


@@ -394,26 +509,41 @@ def transform(provider, slug=None, file_path=None, output_file=None, output_dir=
                        '<rootfiles><rootfile full-path="OPS/content.opf" ' \
                        'media-type="application/oebps-package+xml" />' \
                        '</rootfiles></container>')
                        '<rootfiles><rootfile full-path="OPS/content.opf" ' \
                        'media-type="application/oebps-package+xml" />' \
                        '</rootfiles></container>')

-    zip.write(get_resource('epub/style.css'), os.path.join('OPS', 'style.css'))

     zip.write(get_resource('res/wl-logo-small.png'), os.path.join('OPS', 'logo_wolnelektury.png'))
     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 = DefaultEbookCover
+
+        cover_file = StringIO()
+        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, method="html", encoding='UTF-8', pretty_print=True))
+
+        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)

 
 

-    opf = xslt(metadata, get_resource('epub/xsltContent.xsl'))
-    manifest = opf.find('.//' + OPFNS('manifest'))
-    spine = opf.find('.//' + OPFNS('spine'))
-
-    if cover_fn:
-        cover = StringIO()
-        cover_fn(book_info.author.readable(), book_info.title).save(cover, format='JPEG')
-        zip.writestr(os.path.join('OPS', 'cover.jpg'), cover.getvalue())
-        del cover
-        zip.writestr('OPS/cover.html', open(get_resource('epub/cover.html')).read())

         manifest.append(etree.fromstring(
             '<item id="cover" href="cover.html" media-type="application/xhtml+xml" />'))
         manifest.append(etree.fromstring(
         manifest.append(etree.fromstring(
             '<item id="cover" href="cover.html" media-type="application/xhtml+xml" />'))
         manifest.append(etree.fromstring(

-            '<item id="cover-image" href="cover.jpg" media-type="image/jpeg" />'))
-        spine.insert(0, etree.fromstring('<itemref idref="cover" />'))
+            '<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"/>'))
         opf.getroot()[0].append(etree.fromstring('<meta name="cover" content="cover-image"/>'))

-        opf.getroot().append(etree.fromstring('<guide><reference href="cover.html" type="cover" title="Okładka"/></guide>'))
+        guide.append(etree.fromstring('<reference href="cover.html" type="cover" title="Okładka"/>'))

 
 
     annotations = etree.Element('annotations')
 
 
     annotations = etree.Element('annotations')


@@ -422,23 +552,24 @@ def transform(provider, slug=None, file_path=None, output_file=None, output_dir=
                                '"-//NISO//DTD ncx 2005-1//EN" "http://www.daisy.org/z3986/2005/ncx-2005-1.dtd">' \
                                '<ncx xmlns="http://www.daisy.org/z3986/2005/ncx/" xml:lang="pl" ' \
                                'version="2005-1"><head></head><docTitle></docTitle><navMap>' \
                                '"-//NISO//DTD ncx 2005-1//EN" "http://www.daisy.org/z3986/2005/ncx-2005-1.dtd">' \
                                '<ncx xmlns="http://www.daisy.org/z3986/2005/ncx/" xml:lang="pl" ' \
                                'version="2005-1"><head></head><docTitle></docTitle><navMap>' \

-                               '<navPoint id="NavPoint-1" playOrder="1"><navLabel>' \
-                               '<text>Strona tytułowa</text></navLabel><content src="title.html" />' \
-                               '</navPoint></navMap></ncx>')
+                               '</navMap></ncx>')

     nav_map = toc_file[-1]
 
     nav_map = toc_file[-1]
 

-    toc, chunk_counter, chars, sample = transform_file(input_xml, sample=sample)
+    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 not toc.children:
-        toc.add(u"Początek utworu", 1)
-    toc_counter = toc.write_to_xml(nav_map, 2)
+    if len(toc.children) < 2:
+        toc.add(u"Początek utworu", "part1.html")

 
     # Last modifications in container files and EPUB creation
     if len(annotations) > 0:
 
     # Last modifications in container files and EPUB creation
     if len(annotations) > 0:

-        nav_map.append(etree.fromstring(
-            '<navPoint id="NavPoint-%(i)d" playOrder="%(i)d" ><navLabel><text>Przypisy</text>'\
-            '</navLabel><content src="annotations.html" /></navPoint>' % {'i': toc_counter}))
-        toc_counter += 1
+        toc.add("Przypisy", "annotations.html")

         manifest.append(etree.fromstring(
             '<item id="annotations" href="annotations.html" media-type="application/xhtml+xml" />'))
         spine.append(etree.fromstring(
         manifest.append(etree.fromstring(
             '<item id="annotations" href="annotations.html" media-type="application/xhtml+xml" />'))
         spine.append(etree.fromstring(


@@ -447,48 +578,71 @@ def transform(provider, slug=None, file_path=None, output_file=None, output_dir=
         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 = xslt(annotations, get_resource('epub/xsltAnnotations.xsl'))
         chars = chars.union(used_chars(html_tree.getroot()))
         zip.writestr('OPS/annotations.html', etree.tostring(

-                            html_tree, method="html", pretty_print=True))
+                            html_tree, method="html", encoding='UTF-8', pretty_print=True))
+
+    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')).read()
+    chars.update(used_chars(etree.fromstring(html_string)))
+    zip.writestr('OPS/support.html', html_string)

 
 

-    nav_map.append(etree.fromstring(
-        '<navPoint id="NavPoint-%(i)d" playOrder="%(i)d" ><navLabel><text>Strona redakcyjna</text>'\
-        '</navLabel><content src="last.html" /></navPoint>' % {'i': toc_counter}))
+    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" />'))
     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(input_xml, get_resource('epub/xsltLast.xsl'))
+    html_tree = xslt(document.edoc, get_resource('epub/xsltLast.xsl'))

     chars.update(used_chars(html_tree.getroot()))
     zip.writestr('OPS/last.html', etree.tostring(
     chars.update(used_chars(html_tree.getroot()))
     zip.writestr('OPS/last.html', etree.tostring(

-                        html_tree, method="html", pretty_print=True))
-
-    # strip fonts
-    tmpdir = mkdtemp('-librarian-epub')
-    cwd = os.getcwd()
-
-    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)]
-        if verbose:
-            print "Running font-optimizer"
-            subprocess.check_call(optimizer_call)
-        else:
-            subprocess.check_call(optimizer_call, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
-        zip.write(os.path.join(tmpdir, fname), os.path.join('OPS', fname))
-    rmtree(tmpdir)
-    os.chdir(cwd)
-
-    zip.writestr('OPS/content.opf', etree.tostring(opf, pretty_print=True))
-    contents = []
-    title = node_name(etree.ETXPath('.//'+DCNS('title'))(input_xml)[0])
+                        html_tree, method="html", encoding='UTF-8', pretty_print=True))
+
+    if not flags or not 'without-fonts' 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':
+            if not flags or not 'with-full-fonts' in flags:
+                optimizer_call = ['perl', 'subset.pl', '--chars', ''.join(chars).encode('utf-8'),
+                              get_resource('fonts/' + fname), os.path.join(tmpdir, fname)]              
+                if verbose:
+                    print "Running font-optimizer"
+                    subprocess.check_call(optimizer_call)
+                else:
+                    subprocess.check_call(optimizer_call, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+                    zip.write(os.path.join(tmpdir, fname), os.path.join('OPS', fname))
+            else:
+                zip.write(get_resource('fonts/' + 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)
     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', ''.join((title, 'WolneLektury.pl')))
+    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>')))
     toc_file[0][1].set('content', str(toc.depth()))
     set_inner_xml(toc_file[1], ''.join(('<text>', title, '</text>')))

-    zip.writestr('OPS/toc.ncx', etree.tostring(toc_file, pretty_print=True))
+
+    # 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()
     zip.close()

+
+    return OutputFile.from_filename(output_file.name)