import Theme from "../reader/Theme";
import { FontType, Typefaces } from "../types/text";
import { XMLElementsJson } from "./xml";
export declare function parseTypefaces(el: XMLElementsJson): Typefaces;
export declare function findFontType(text: string): FontType;
export declare function isTypefacePlaceholder(typeface: string): boolean;
export declare function findFontByTypeface(typeface: string, theme?: Theme): string | null;