parameters: (self, p)
docstring: symbols_cont : ',' SYMBOL symbols_cont
                      |
docstring_summary: symbols_cont : ',' SYMBOL symbols_cont
                      |
docstring_tokens: symbols_cont : SYMBOL symbols_cont |
function: def p_symbols_cont(self, p):
      """symbols_cont : ',' SYMBOL symbols_cont
                      | """
      if len(p) > 1: p[0] = ListFromConcat(p[2], p[3])
function_tokens: def p_symbols_cont ( self , p ) : if len ( p ) > 1 : p [ 0 ] = ListFromConcat ( p [ 2 ] , p [ 3 ] )