import { Options, Webpage } from './types';
/**
 * @see https://html.spec.whatwg.org/multipage/semantics.html
 */
export declare class HTML {
    opt: Options;
    private rx;
    constructor(opt?: Options);
    /**
     * Process assets within webpage
     *
     * @param {Webpage} [Webpage] if error will be thrown
     * @return {this} [Cairn] `this` command for chaning
     * @api public
     */
    process(page: Webpage): Promise<string>;
    /**
     * setContentSecurityPolicy prevent browsers from requesting any remote
     * resources by setting Content-Security-Policy to only allow from
     * inline element and data URL.
     *
     * @param {Document} doc JSDOM.window.document
     * @api private
     */
    setContentSecurityPolicy(doc: Document): void;
    /**
     * Removes or replace elements following the configuration.
     *
     * @param {Document} doc JSDOM.window.document
     * @api private
     */
    applyConfiguration(doc: Document): void;
    /**
     * Convert all noscript to div element.
     *
     * @param {Document} doc JSDOM.window.document
     * @param {boolean} [markNewDiv] mark to noscript
     * @api private
     */
    convertNoScriptToDiv(doc: Document, markNewDiv?: boolean): void;
    /**
     * Find all comments in document then remove it.
     *
     * @param {Document} doc JSDOM.window.document
     * @api private
     */
    removeComments(doc: Document): void;
    /**
     * Convert attributes data-src and data-srcset which often found
     * in lazy-loaded images and pictures, into basic attribute
     * src and srcset, so images that can be loaded without JS.
     *
     * @param {Document} doc JSDOM.window.document
     * @api private
     */
    convertLazyImageAttrs(doc: Document): void;
    /**
     * Converts all relative URL in document into absolute URL.
     * We do this for a, img, picture, figure, video, audio, source, link,
     * embed, iframe and object.
     *
     * @param {Document} doc JSDOM.window.document
     * @param {string} [url] original request url
     * @api private
     */
    convertRelativeURLs(doc: Document, url: string): void;
    /**
     * Removes integrity attributes from link tags.
     *
     * @param {Document} doc JSDOM.window.document
     * @api private
     */
    removeLinkIntegrityAttr(doc: Document): void;
    /**
     * Set og:title to title when it empty.
     *
     * @param {Document} doc JSDOM.window.document
     * @api private
     */
    convertOpenGraph(doc: Document): void;
    processLinkNode(doc: HTMLElement, baseURL?: string): Promise<void>;
    processURLNode(node: HTMLElement, attrName: string, baseURL: string): Promise<void>;
    processScriptNode(node: HTMLElement, baseURL: string): Promise<void>;
    processEmbedNode(node: HTMLElement, baseURL: string): Promise<void>;
    processMediaNode(node: HTMLElement, baseURL: string): Promise<void>;
    revertConvertedNoScript(doc: Document): void;
}