INNER CODE UNIT · Rust

get_node_attr

FooIbar/EhViewer · app/src/main/rust/src/lib.rs:130

fn get_node_attr<'a>(node: &'a Node<'_>, attr: &'a str) -> Option<&'a str> {
    get_tag_attr(node.as_tag()?, attr)
}

fn get_tag_attr<'a>(tag: &'a HTMLTag<'_>, attr: &'a str) -> Option<&'a str> {
    tag.attributes().get(attr)??.try_as_utf8_str()
}

// Should not use it at too upper node, since it will do DFS?
fn query_childs_first_match_attr<'a>(
    node: &'a Node<'_>,
    parser: &'a Parser,
    attr: &'a str,
) -> Option<&'a str> {
    let selector = format!("[{attr}]");
    let mut iter = node.as_tag()?.query_selector(parser, &selector)?;
    get_node_handle_attr(&iter.next()?, parser, attr)
}

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