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 
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// Ported from moonbit inspect/unicode_font_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("\\R_1", &mut Settings::new()).unwrap(), RenderConfig::new()), "ℝ₁");
        assert_eq!(render(&parse("\\R^2", &mut Settings::new()).unwrap(), RenderConfig::new()), "ℝ²");
        assert_eq!(render(&parse("\\R_1^2", &mut Settings::new()).unwrap(), RenderConfig::new()), "ℝ₁²");
        assert_eq!(render(&parse("\\frac{\\R}{2}", &mut Settings::new()).unwrap(), RenderConfig::new()), "ℝ∕2");
        assert_eq!(render(&parse("\\frac{\\mathbb{abc}}{2}", &mut Settings::new()).unwrap(), RenderConfig::new()), "𝕒𝕓𝕔∕2");
    }

    #[test]
    fn t1() {
        assert_eq!(render(&parse("\\mathbf{ab}", &mut Settings::new()).unwrap(), RenderConfig::new()), "𝐚𝐛");
        assert_eq!(render(&parse("\\mathbf{abc}", &mut Settings::new()).unwrap(), RenderConfig::new()), "𝐚𝐛𝐜");
        assert_eq!(render(&parse("\\mathbb{R}", &mut Settings::new()).unwrap(), RenderConfig::new()), "ℝ");
        assert_eq!(render(&parse("\\mathbf{a\\alpha b}", &mut Settings::new()).unwrap(), RenderConfig::new()), "𝐚𝛂𝐛");
        assert_eq!(render(&parse("\\mathbf{\\alpha\\beta}", &mut Settings::new()).unwrap(), RenderConfig::new()), "𝛂𝛃");
        assert_eq!(render(&parse("\\mathbf{\\Gamma\\Omega}", &mut Settings::new()).unwrap(), RenderConfig::new()), "𝚪𝛀");
        assert_eq!(render(&parse("\\boldsymbol{\\alpha}", &mut Settings::new()).unwrap(), RenderConfig::new()), "𝜶");
        assert_eq!(render(&parse("\\mathbf{x+y}", &mut Settings::new()).unwrap(), RenderConfig::new()), "𝐱+𝐲");
        assert_eq!(render(&parse("\\mathbf{x=y}", &mut Settings::new()).unwrap(), RenderConfig::new()), "𝐱=𝐲");
    }

}