old_contents: # from http://open.e-scribe.com/browser/python/django/apps/protowiki/templatetags/wikitags.py
  # copyright Paul Bissex, MIT license
  from django.template import Library
  from django.conf import settings
  
  register = Library()
  
  @register.filter
  def wikify(value):
      """Makes WikiWords"""
      import re
      #wikifier = re.compile(r'\b(([A-Z]+[a-z]+){2,})\b')
      wikifier = re.compile(r'[^;/+-]\b(([A-Z]+[a-z]+){2,})\b')
      return wikifier.sub(r' <a href="/wiki/\1/">\1</a>', value)
new_contents: # from http://open.e-scribe.com/browser/python/django/apps/protowiki/templatetags/wikitags.py
  # copyright Paul Bissex, MIT license
  from django.template import Library
  from django.conf import settings
  from rcs.wiki.models import WikiPage
  
  register = Library()
  
  @register.filter
  def wikify(value):
      """Makes WikiWords"""
      import re
      #wikifier = re.compile(r'\b(([A-Z]+[a-z]+){2,})\b')
      def replace_wikiword(m):
          slug = m.group(1)
          try:
              WikiPage.objects.get(slug=slug)
              return r' <a href="/wiki/%s/">%s</a>' % (slug, slug)
          except WikiPage.DoesNotExist:
              return r' <a class="doesnotexist" href="/wiki/%s/">%s</a>' % (slug, slug)
          
      wikifier = re.compile(r'[^;/+-]\b(([A-Z]+[a-z]+){2,})\b')
      return wikifier.sub(replace_wikiword, value)
subject: mark links to inexistant wikipages with a css class.