Custom Type Display

The EVCXR Kernel supports custom display routines for your types. Implement Debug like so.

use std::fmt::Debug;
pub struct List<T>(Vec<T>);
impl<T: Debug> List<T> {
    pub fn evcxr_display(&self) {
        let mut html = String::new();
        
        html.push_str("<ol>");
        
        for item in &self.0 {
            html.push_str(&format!("<li>{:?}</li>", item));
        }
        
        html.push_str("</ol>");
        println!("EVCXR_BEGIN_CONTENT text/html\n{}\nEVCXR_END_CONTENT", html);
    }
}

A type implementing Debug in this way will render HTML. Raster images, SVG, and HTML snippets will all render inline.

let list = List(vec!["the good", "the bad", "the ugly"]);

list

1. "the good"
2. "the bad"
3. "the ugly"