handlebars 0.28.0

extern crate env_logger;
extern crate handlebars;
#[macro_use]
extern crate maplit;

use std::path::Path;
use handlebars::Handlebars;

fn main() {
    env_logger::init().unwrap();
    let mut handlebars = Handlebars::new();

    handlebars
        .register_template_file("template", &Path::new("./examples/partials/template2.hbs"))
        .ok()
        .unwrap();

    handlebars
        .register_template_file("base0", &Path::new("./examples/partials/base0.hbs"))
        .ok()
        .unwrap();
    handlebars
        .register_template_file("base1", &Path::new("./examples/partials/base1.hbs"))
        .ok()
        .unwrap();

    let data0 =
        btreemap! {
        "title".to_string() => "example 0".to_string(),
        "parent".to_string() => "base0".to_string()
    };
    let data1 =
        btreemap! {
        "title".to_string() => "example 1".to_string(),
        "parent".to_string() => "base1".to_string()
    };

    println!("Page 0");
    println!(
        "{}",
        handlebars.render("template", &data0).unwrap_or_else(
            |e| format!("{}", e),
        )
    );
    println!("=======================================================");

    println!("Page 1");
    println!(
        "{}",
        handlebars.render("template", &data1).unwrap_or_else(
            |e| format!("{}", e),
        )
    );
}