表达式优先级错误

[fanthos]

在语法定义中表达式优先级计算错误。比如
1+23+4
会被计算成
1+(2(3+4))

在 https://ohmlang.github.io/editor/ 的示例代码中

Exp
  = AddExp

AddExp
  = AddExp "+" MulExp  -- plus
  | AddExp "-" MulExp  -- minus
  | MulExp

MulExp
  = MulExp "*" ExpExp  -- times
  | MulExp "/" ExpExp  -- divide
  | ExpExp

ExpExp
  = PriExp "^" ExpExp  -- power
  | PriExp

PriExp
  = "(" Exp ")"  -- paren
  | "+" PriExp   -- pos
  | "-" PriExp   -- neg
  | ident
  | number

能解决这个问题。

[Icemic]

Did you mean #let x = 1 + 2 3 + 4 ( there's a space between 2 and 3 )？

It's not a bug, but a wrong statement, which will cause error in most of programming languages, ex. Javascript.

Besides, this wrong statement won't be treated as 1+(2(3+4)), but two statement (#let x = 1 + 2 and raw text 3 + 4).

I've added a test case in test/parser.test.js, you will get more detail if you search parse computation.

Thanks for feedback!

[fanthos]

I forgot add ` on the statement.
There should be a star between 2 and 3.

[Icemic]

Oh...I will check it again

[fanthos]

Please also make sure expression 3-2+1 works as intended.