docs: def t_REGULATION(self, token):
          ur'(?P<indents>\s{4,})*-\s(?P<reg>[a-zA-Z0-9]+)\)\s*(?P<text>.+?[^ ])\n'
          indents = token.lexer.lexmatch.group("indents")
          indents = len(indents)/4 if indents else 0
          reg = token.lexer.lexmatch.group("reg").decode("utf8")
          text = token.lexer.lexmatch.group("text").decode("utf8")
          token.value = (indents, reg, text)
          token.lexer.lineno += 1
          return token