evar 0.2.0

Modern ergonomic math calculator inspired by eva
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53

#[derive(Debug, PartialEq, Clone)]
pub enum PrefixOp {
    Neg,
}

impl std::fmt::Display for PrefixOp {
    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
        let op_str = match self {
            PrefixOp::Neg => "-",
        };
        write!(f, "{}", op_str)
    }
}

#[derive(Debug, PartialEq, Clone)]
pub enum PostfixOp {
    Fac,
}

impl std::fmt::Display for PostfixOp {
    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
        let op_str = match self {
            PostfixOp::Fac => "!",
        };
        write!(f, "{}", op_str)
    }
}

#[derive(Debug, PartialEq, Clone)]
pub enum InfixOp {
    Add,
    Sub,
    Mul,
    Div,
    IntDiv,
    Rem,
    Pow,
}

impl std::fmt::Display for InfixOp {
    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
        let op_str = match self {
            InfixOp::Add => "+",
            InfixOp::Sub => "-",
            InfixOp::Mul => "*",
            InfixOp::Div => "/",
            InfixOp::IntDiv => "//",
            InfixOp::Rem => "%",
            InfixOp::Pow => "^",
        };
        write!(f, "{}", op_str)
    }
}