katex-parser 0.1.0

A port of the KaTeX parser: lexing and parsing LaTeX math expressions with macro expansion into a typed AST, plus a Unicode rendering backend
Documentation 
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
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68

// Ported from moonbit inspect/unicode_matrix_test.mbt
#![allow(unused_imports)]
use crate::parse;
use crate::settings::{Macros, Settings};
use crate::unicode::render;
use crate::unicode::{LineStyle, RenderConfig};
use std::collections::HashMap;

#[cfg(test)]
mod tests {
    use super::*;

    #[test]
    fn t0() {
        assert_eq!(render(&parse("\\begin{pmatrix}a & b \\\\ c & d\\end{pmatrix}", &mut Settings::new()).unwrap(), RenderConfig::new()), "(a, b; c, d)");
        assert_eq!(render(&parse("\\begin{bmatrix}a & b \\\\ c & d\\end{bmatrix}", &mut Settings::new()).unwrap(), RenderConfig::new()), "[a, b; c, d]");
        assert_eq!(render(&parse("\\begin{matrix}a \\\\ b\\end{matrix}", &mut Settings::new()).unwrap(), RenderConfig::new()), "a; b");
    }

    #[test]
    fn t1() {
        let mut settings = Settings { display_mode: true, ..Settings::new() };
        assert_eq!(render(&parse("\\begin{pmatrix}a & b \\\\ c & d\\end{pmatrix}", &mut settings).unwrap(), RenderConfig::new()), "(a  b)\n(c  d)");
        assert_eq!(render(&parse("\\begin{bmatrix}a & b \\\\ c & d\\end{bmatrix}", &mut settings).unwrap(), RenderConfig::new()), "[a  b]\n[c  d]");
        assert_eq!(render(&parse("\\begin{matrix}a \\\\ b\\end{matrix}", &mut settings).unwrap(), RenderConfig::new()), "a\nb");
    }

    #[test]
    fn t2() {
        let mut settings = Settings { display_mode: true, ..Settings::new() };
        assert_eq!(render(&parse("\\begin{pmatrix}aa & b \\\\ c & ddd\\end{pmatrix}", &mut settings).unwrap(), RenderConfig::new()), "(aa  b  )\n(c   ddd)");
        assert_eq!(render(&parse("\\begin{pmatrix}a & b \\\\ c & d\\end{pmatrix}", &mut settings).unwrap(), RenderConfig::new()), "(a  b)\n(c  d)");
    }

    #[test]
    fn t3() {
        let mut settings = Settings { display_mode: true, ..Settings::new() };
        assert_eq!(render(&parse("\\begin{pmatrix}a \\\\ b \\\\ c\\end{pmatrix}", &mut settings).unwrap(), RenderConfig::new()), "(a)\n(b)\n(c)");
        assert_eq!(render(&parse("\\begin{pmatrix}aa \\\\ b\\end{pmatrix}", &mut settings).unwrap(), RenderConfig::new()), "(aa)\n(b )");
    }

    #[test]
    fn t4() {
        let mut settings = Settings { display_mode: true, ..Settings::new() };
        assert_eq!(render(&parse("\\begin{matrix} a \\\\ b \\\\ \\end{matrix}", &mut settings).unwrap(), RenderConfig::new()), "a\nb");
    }

    #[test]
    fn t5() {
        let mut settings = Settings { display_mode: true, ..Settings::new() };
        assert_eq!(render(&parse("\\begin{vmatrix}a & b \\\\ c & d\\end{vmatrix}", &mut settings).unwrap(), RenderConfig::new()), "∣a  b∣\n∣c  d∣");
        assert_eq!(render(&parse("\\begin{Vmatrix}a & b \\\\ c & d\\end{Vmatrix}", &mut settings).unwrap(), RenderConfig::new()), "‖a  b‖\n‖c  d‖");
        assert_eq!(render(&parse("\\begin{Bmatrix}a & b \\\\ c & d\\end{Bmatrix}", &mut settings).unwrap(), RenderConfig::new()), "{a  b}\n{c  d}");
    }

    #[test]
    fn t6() {
        let mut settings = Settings { display_mode: true, ..Settings::new() };
        assert_eq!(render(&parse("\\begin{matrix*}[r]a & b \\\\ cc & d\\end{matrix*}", &mut settings).unwrap(), RenderConfig::new()), "a   b\ncc  d");
    }

    #[test]
    fn t7() {
        let mut settings = Settings { display_mode: true, ..Settings::new() };
        assert_eq!(render(&parse("\\begin{smallmatrix}a & b \\\\ c & d\\end{smallmatrix}", &mut settings).unwrap(), RenderConfig::new()), "a  b\nc  d");
    }

}