2a5f / l-exp

Just a try / It is an extended version of a prefix expression

It is an extended version of a Prefix Notation(Polish notation)

这是一个前缀表达式(波兰表达式)的扩展

Syntax 语法

No float support temporarily 暂时不支持浮点数

• Default is Multiplication 默认是乘法

  1 2 = 1 * 2
  

• Can multiple values 可以一次计算多个值

  +1 2 3 4 5 = 1 + 2 + 3 + 4 + 5
  

• , The Closure 闭合符

  /-2 1,3 = (2 - 1) / 3
  

• ; The Back 返回符
  Back to two consecutive operators
  返回到两个连续的操作符处

  /-2+5 1;3 = (2 - (5 + 1)) / 3
  ↑      ↓
  ←-←-←-←-
  

**/3+1*9 0;8,2 = ((3 / (1 + (9 * 0))) * 8) * 2
↑↑        ↓ ↓
↑ ↖←-←-←-↙ ↓
↖-←-←-←-←-←↙

Try Online
lexp ( exp_str : string ) => com_res : number
Example:

lexp('**/3+1*9 0;8,2')

I bet someone already thought of this.
我感觉肯定早就有人想出这个了