import { FlowDoc } from '../ir/flow.js';
import { ScriptKey } from './remote-fonts.js';
/**
 * The writing system a character needs a face for, or `undefined` when a Latin
 * family covers it.
 *
 * @param cp       The code point.
 * @param hanFace  Which face draws unified Han in this document (see
 *                 {@link scriptsInFlow}); defaults to Simplified.
 */
export declare function scriptForCodepoint(cp: number, hanFace?: ScriptKey): ScriptKey | undefined;
/**
 * The writing systems a document holds text in, beside the Latin one.
 *
 * Unified Han is written the same in Japanese, Korean and Chinese and drawn
 * differently in each, and the character does not say which — the document
 * does: Kana beside it means Japanese, Hangul means Korean. So the whole text
 * is read once, and the answer applies to every Han character in it.
 *
 * @param flow The parsed document.
 * @returns The scripts to fetch a face for, and the one Han is drawn with.
 */
export declare function scriptsInFlow(flow: FlowDoc): {
    scripts: Set<ScriptKey>;
    hanFace: ScriptKey;
};