html_lint_fragment.rs

#[rustler::nif]
fn lint(env: Env, input: String) -> Result<Term, Error> {
    let parse_errors = lint_html::lint(input);
    return convert_errors(env, parse_errors);
}

fn convert_errors(env: Env, parse_errors: Vec<(u64, String)>) -> Result<Term, Error> {
    if parse_errors.len() == 0 {
        return Ok(ok().to_term(env));
    } else {
        let e = error().encode(env);
        let msgs: Vec<Term> = parse_errors.iter().map(|x| x.encode(env)).collect();
        let msgs_term: Term = msgs.encode(env);
        let tuple_elems = vec![e, msgs_term];
        return Ok(make_tuple(env, &tuple_elems));
    }
}

rustler::init!(
    "Elixir.Platform.Plugs.HtmlLintNative",
    [lint]
);