from django.template import Variable, VariableDoesNotExist

QUOTED_STRING = re.compile(r'^["\'](?P<noquotes>.+)["\']$')

def handle_var(self, value, context):
  stringval = QUOTED_STRING.search(value)
  if stringval:
    return stringval.group('noquotes')
  else:
    try:    
      return Variable(value).resolve(context)
    except VariableDoesNotExist:
      return value