//! Generic tag builders (Rails `tag` / `content_tag`).
use escape;
/// A standalone (void) tag: `tag("br", &[])` → `<br>`;
/// `tag("input", &[("type","text")])` → `<input type="text">`.
/// A tag wrapping (escaped) content:
/// `content_tag("p", "hi", &[("class","lead")])` → `<p class="lead">hi</p>`.