import { BookMetadata, Contributor, LanguageMap, Section } from '../core/types';
import { ExportOptions, ExportSelection } from '../core/exporter';
import { extensionFromMime, extensionFromPath, getMimeTypeFromPath, escapeXML, escapeAttr } from '../core/utils';
export { extensionFromMime, extensionFromPath, getMimeTypeFromPath, escapeXML, escapeAttr };
export declare function parseDataURI(src: string): {
    mimeType: string;
    bytes: Uint8Array;
} | null;
export declare function decodeBase64(base64: string): Uint8Array;
export declare function toBytes(data: string | ArrayBuffer | Blob): Promise<Uint8Array>;
export declare function canExportFirstSectionsSelection(selection: ExportSelection): boolean;
export declare function shouldPackageResource(url: string): boolean;
export declare function loadReferencedResource(url: string, options: ExportOptions): Promise<{
    mimeType: string;
    bytes: Uint8Array;
} | null>;
export declare function extractDocumentTitle(html: string): string | null;
export declare function sectionTitleFromId(section: Section): string | null;
export declare function resolveSectionTitle(section: Section, index: number, html: string | undefined, preferredTitle: string | undefined, fallbackPrefix?: string): string;
export declare function normalizeTitleText(value: string | undefined): string;
export declare function stringifyLanguageMap(value: LanguageMap | undefined): string;
export declare function normalizeLanguage(value: string | string[] | undefined): string;
export declare function stringifyContributor(value: Contributor | readonly Contributor[] | undefined): string | undefined;
export declare function buildExportTitle(metadata: BookMetadata | undefined): string;
export declare function buildIdentifier(metadata: BookMetadata | undefined): string;
/**
 * Strip HTML tags and decode basic entities to produce plain text.
 * This is a lightweight regex-based approach suitable for section content.
 */
export declare function htmlToText(html: string): string;
export declare function extractBodyContent(html: string): string;
export declare function stripDocumentShell(html: string): string;
export declare function normalizeHTMLFragment(html: string): string;
export type ResourceAttributeRewriter = (url: string, attr: string, rawAttribute: string) => Promise<string | null> | string | null;
export declare function rewriteResourceAttributes(html: string, rewrite: ResourceAttributeRewriter): Promise<string>;
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