Function strip_html_comments

atomic-canonical/src/directive.rs:273–285

Drop `<!-- … -->` spans so template guidance comments never trip the embedded-directive check.

(line: &str)

/// Drop `<!-- … -->` spans so template guidance comments never trip the
/// embedded-directive check.
fn strip_html_comments(line: &str) -> String {
    let mut out = String::with_capacity(line.len());
    let mut rest = line;
    while let Some(open) = rest.find("<!--") {
        out.push_str(&rest[..open]);
        match rest[open..].find("-->") {
            Some(close) => rest = &rest[open + close + 3..],
            None => return out,
        }
    }
    out.push_str(rest);
    out
}

fn check_known(name: &str) -> Result<()> {
    if !vocab::is_known_directive(name) {