swift-html
Swift DSL for type-safe, extensible, and transformable HTML documents
...Our library prevents these runtime issues at compile-time by embedding HTML directly into Swift’s powerful type system. Underneath the hood these tag functions html, body, h1, etc., are just creating and nesting instances of a Node type, which is a simple Swift enum. Because Node is just a simple Swift type, we can transform it in all kinds of interesting ways. For a silly example, what if we wanted to remove all instances of exclamation marks from our document? We even provide plug-in libraries that reduce the friction of using this library with Kitura and Vapor.