How do I clone an element in the DOM using SwiftSoup?

SwiftSoup is a pure Swift library that allows you to parse, manipulate, and output HTML content. It provides a similar API to that of the popular JavaScript library, Jsoup. While SwiftSoup is designed primarily for parsing and selecting elements rather than manipulating the live DOM (as you would in a browser environment), you can still "clone" elements in the sense of creating a deep copy of an element's structure and its children.

Here's an example of how you would clone an element using SwiftSoup:

import SwiftSoup

do {
    // Assume you have some HTML content in a String variable named `html`.
    let html = "<div><p>Hello, World!</p></div>"

    // Parse the HTML content to create a Document object.
    let document = try SwiftSoup.parse(html)

    // Use a selector to find the element you want to clone.
    // For this example, we're selecting the first <div> element.
    if let divElement = try document.select("div").first() {

        // Clone the <div> element
        let clonedDivElement = divElement.clone()

        // Now you have a deep copy of the <div> element and its children.
        // You can manipulate the cloned element or append it elsewhere in the document.

        // For demonstration, let's print out the cloned element's HTML.
        print(try clonedDivElement.outerHtml())
    }
} catch Exception.Error(let type, let message) {
    print(message)
} catch {
    print("error")
}

In this example, we first parse a string containing HTML content to create a Document object. Then, we use SwiftSoup's select method to find the element we want to clone. Once we have the element, we call its clone method to create a deep copy.

The cloned element is a completely separate instance from the original, with the same attributes and children. You can now manipulate the cloned element without affecting the original one.

Please note that SwiftSoup works with static HTML content and is typically used in server-side Swift applications or in iOS/macOS apps for parsing and extracting data from HTML. It does not manipulate the live browser DOM since Swift is not used for in-browser development.