Added mobi writer files

ebook_converter/ebooks/mobi/writer8/cleanup.py

@@ -0,0 +1,43 @@
+#!/usr/bin/env python2
+# vim:fileencoding=UTF-8:ts=4:sw=4:sta:et:sts=4:ai
+from __future__ import absolute_import, division, print_function, unicode_literals
+
+__license__   = 'GPL v3'
+__copyright__ = '2012, Kovid Goyal <kovid@kovidgoyal.net>'
+__docformat__ = 'restructuredtext en'
+
+from calibre.ebooks.oeb.base import XPath
+
+
+class CSSCleanup(object):
+
+    def __init__(self, log, opts):
+        self.log, self.opts = log, opts
+
+    def __call__(self, item, stylizer):
+        if not hasattr(item.data, 'xpath'):
+            return
+
+        # The Kindle touch displays all black pages if the height is set on
+        # body
+        for body in XPath('//h:body')(item.data):
+            style = stylizer.style(body)
+            style.drop('height')
+
+
+def remove_duplicate_anchors(oeb):
+    # The Kindle apparently has incorrect behavior for duplicate anchors, see
+    # https://bugs.launchpad.net/calibre/+bug/1454199
+    for item in oeb.spine:
+        if not hasattr(item.data, 'xpath'):
+            continue
+        seen = set()
+        for tag in item.data.xpath('//*[@id or @name]'):
+            for attr in ('id', 'name'):
+                anchor = tag.get(attr)
+                if anchor is not None:
+                    if anchor in seen:
+                        oeb.log.debug('Removing duplicate anchor:', anchor)
+                        tag.attrib.pop(attr)
+                    else:
+                        seen.add(anchor)