parameters: (self, p)
docstring: namespace_name : SYMBOL
                        | SYMBOL '.' namespace_name
docstring_summary: namespace_name : SYMBOL
                        | SYMBOL '.' namespace_name
docstring_tokens: namespace_name : SYMBOL | SYMBOL . namespace_name
function: def p_namespace_name(self, p):
      """namespace_name : SYMBOL
                        | SYMBOL '.' namespace_name"""
      p[0] = "".join(p[1:])
function_tokens: def p_namespace_name ( self , p ) : p [ 0 ] = "" . join ( p [ 1 : ] )