mathml_rs/structs/
constants.rs

1use super::math_node::NodeIndex;
2use std::fmt;
3
4#[derive(Default, Debug, Clone, Eq, PartialEq)]
5pub struct ConstantNode {
6    pub constant: Option<Constant>,
7    pub parent: Option<NodeIndex>,
8}
9
10impl fmt::Display for ConstantNode {
11    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
12        write!(
13            f,
14            "constant: {:?}, parent: {:?}",
15            self.constant, self.parent
16        )
17    }
18}
19
20#[derive(Debug, Eq, PartialEq, Clone)]
21pub enum Constant {
22    ImaginaryI,
23    True,
24    False,
25    Pi,
26    EulerGamma,
27    Infinity,
28}