我一直在尝试建立一个相当简单的数学解析器，并且运行良好。只有我不知道如何进行隐式乘法。
I've been using lark as an lalr parser.
这是大部分语法：
?start: expression
?expression: sub
?sub: plus ("-" plus)*
?plus: times ("+" times)*
?times: divide ("*" divide)*
?divide: power ("/" power)?
?power: unary ("^" unary)*
?unary: positive
| negative
| atom
?atom: "(" expression ")"
| numeric
| symbol
positive: "+" unary
negative: "-" unary
?numeric: FLOAT
| INT
?symbol: WORD
%import common.WORD
%import common.INT
%import common.FLOAT
%import common.WS_INLINE
%ignore WS_INLINE
Just making the "*" in times optional leads to a bunch of issues, like 1 - 1 being interpreted as 1 times -1.
我将如何添加和隐式时间运算符？
