import { type LinkDefinition } from '@dosgato/templating';
export declare function getHostname(urlString: string): string | undefined;
export interface SingleValueIndex {
    name: string;
    value: string;
}
export type LinkIndexTypes = 'link_asset_id' | 'link_asset_path' | 'link_asset_checksum' | 'link_page_linkId' | 'link_page_path' | 'link_hostname' | 'link_data_id' | 'link_data_path' | 'link_assetfolder_id' | 'link_assetfolder_path' | 'link_datafolder_id' | 'link_datafolder_path';
export declare function processLink(link: LinkDefinition): SingleValueIndex[];
export declare function parseLinks(links?: (LinkDefinition | string | undefined)[], templateKey?: string): LinkDefinition[];
export declare function normalizeForSearch(str: string): string;
export declare function splitWords(normalized: string): string[];
export declare function searchCodes(word: string): string[];
export declare function quadgrams(word: string): string[];
export declare function ngrams(word: string, n: number): string[];
/**
 * Strip the query string and hash before indexing a URL as fulltext. They are often full of
 * opaque ids and tracking parameters that would add a lot of unique n-grams to the index.
 */
export declare function urlForFulltext(url: string): string;
export declare function extractFromHtml(html: string): {
    links: LinkDefinition[];
    texts: string[];
};