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_box_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("\\boxed{x}", &mut Settings::new()).unwrap(), RenderConfig::new()), "┌─┐\n│x│\n└─┘");
        assert_eq!(render(&parse("\\boxed{\\pi=\\frac c d}", &mut Settings::new()).unwrap(), RenderConfig::new()), "┌───────┐\n│     c │\n│π = ───│\n│     d │\n└───────┘");
    }

    #[test]
    fn t1() {
        let mut settings = Settings { display_mode: true, ..Settings::new() };
        assert_eq!(render(&parse("x = \\boxed{\\pi=\\frac c d}", &mut settings).unwrap(), RenderConfig::new()), "    ┌───────┐\n    │     c │\nx = │π = ───│\n    │     d │\n    └───────┘");
    }

    #[test]
    fn t2() {
        let config = RenderConfig { line_style: LineStyle::Ascii, ..RenderConfig::new() };
        let mut settings = Settings { display_mode: true, ..Settings::new() };
        assert_eq!(render(&parse("\\boxed{x}", &mut Settings::new()).unwrap(), config.clone()), "---\n|x|\n---");
        assert_eq!(render(&parse("\\boxed{\\pi=\\frac c d}", &mut Settings::new()).unwrap(), config.clone()), "---------\n|     c |\n|π = ---|\n|     d |\n---------");
        assert_eq!(render(&parse("\\frac{a}{b}", &mut settings).unwrap(), config.clone()), " a \n---\n b ");
    }

}