text: from pygments.filter import simplefilter
  from pygments.token import Token
  
  @simplefilter
  def linker(self, lexer, stream, options):
      for ttype, value in stream:
          value = value.replace('_LNK_', '_LNK__')
          if ttype is Token.Keyword or ttype is Token.Keyword.Namespace:
              value = '_LNK_B_nginx.org/r/%s_LNK_M_%s_LNK_E_' % (value, value)
          yield ttype, value
  