def create_ncx(toc, to_href, btitle, lang, uid):
lang = lang.replace('_', '-')
ncx = etree.Element(NCX('ncx'),
attrib={'version': '2005-1', XML('lang'): lang},
nsmap={None: NCX_NS})
head = etree.SubElement(ncx, NCX('head'))
etree.SubElement(head, NCX('meta'),
name='dtb:uid', content=unicode(uid))
etree.SubElement(head, NCX('meta'),
name='dtb:depth', content=str(toc.depth))
generator = ''.join(['calibre (', __version__, ')'])
etree.SubElement(head, NCX('meta'),
name='dtb:generator', content=generator)
etree.SubElement(head, NCX('meta'), name='dtb:totalPageCount', content='0')
etree.SubElement(head, NCX('meta'), name='dtb:maxPageNumber', content='0')
title = etree.SubElement(ncx, NCX('docTitle'))
text = etree.SubElement(title, NCX('text'))
text.text = btitle
navmap = etree.SubElement(ncx, NCX('navMap'))
spat = re.compile(r'\s+')
play_order = Counter()
def process_node(xml_parent, toc_parent):
for child in toc_parent:
play_order['c'] += 1
point = etree.SubElement(xml_parent, NCX('navPoint'), id='num_%d' % play_order['c'],
playOrder=str(play_order['c']))
label = etree.SubElement(point, NCX('navLabel'))
title = child.title
if title:
title = spat.sub(' ', title)
etree.SubElement(label, NCX('text')).text = title
if child.dest:
href = to_href(child.dest)
if child.frag:
href += '#'+child.frag
etree.SubElement(point, NCX('content'), src=href)
process_node(point, child)
process_node(navmap, toc)
return ncx
def add_from_li(li, parent):
href = text = None
for x in li.iterchildren(XHTML('a'), XHTML('span')):
text = etree.tostring(
x, method='text', encoding=unicode,
with_tail=False).strip() or ' '.join(
x.xpath('descendant-or-self::*/@title')).strip()
href = x.get('href')
if href:
if href.startswith('#'):
href = bn + href
break
np = parent.makeelement(NCX('navPoint'))
parent.append(np)
np.append(np.makeelement(NCX('navLabel')))
np[0].append(np.makeelement(NCX('text')))
np[0][0].text = text
if href:
np.append(np.makeelement(NCX('content'), attrib={'src': href}))
return np
