code: def fburl(parser, token):
      
      bits = token.contents.split(' ')
      if len(bits) < 2:
          raise template.TemplateSyntaxError("'%s' takes at least one argument"
                                    " (path to a view)" % bits[0])
      viewname = bits[1]
      args = []
      kwargs = {}
      asvar = None
  
      if len(bits) > 2:
          bits = iter(bits[2:])
          for bit in bits:
              if bit == 'as':
                  asvar = bits.next()
                  break
              else:
                  for arg in bit.split(","):
                      if '=' in arg:
                          k, v = arg.split('=', 1)
                          k = k.strip()
                          kwargs[k] = parser.compile_filter(v)
                      elif arg:
                          args.append(parser.compile_filter(arg))
      return URLNode(viewname, args, kwargs, asvar)
docs: Returns an absolute URL matching given view with its parameters.
  
      This is a way to define links that aren't tied to a particular URL
      configuration::
  
          {% url path.to.some_view arg1,arg2,name1=value1 %}
  
      The first argument is a path to a view. It can be an absolute python path
      or just ``app_name.view_name`` without the project name if the view is
      located inside the project.  Other arguments are comma-separated values
      that will be filled in place of positional and keyword arguments in the
      URL. All arguments for the URL should be present.
  
      For example if you have a view ``app_name.client`` taking client's id and
      the corresponding line in a URLconf looks like this::
  
          ('^client/(\d+)/$', 'app_name.client')
  
      and this app's URLconf is included into the project's URLconf under some
      path::
  
          ('^clients/', include('project_name.app_name.urls'))
  
      then in a template you can create a link for a certain client like this::
  
          {% url app_name.client client.id %}
  
      The URL will look like ``/clients/client/123/``.