- url(r'^diff/(?P<slug>[^/]+)/(?:(?P<chunk>[^/]+)/)?$', 'diff', name="wiki_diff"),
- url(r'^pubmark/(?P<slug>[^/]+)/(?:(?P<chunk>[^/]+)/)?$', 'pubmark', name="wiki_pubmark"),
-
- url(r'^themes$', 'themes', name="themes"),
+ url(r'^diff/(?P<doc_id>\d+)/$', 'diff', name="wiki_diff"),