import { k as EanValidationResult, F as FormatResult } from './validation-result-D4Wrxl7j.js';
export { D as DocumentFormat, E as Ean, V as ValidationErrorCode } from './validation-result-D4Wrxl7j.js';

/** GS1 EAN/UPC — official reference for check-digit algorithm. */
declare const EAN_OFFICIAL_SOURCE_URL: "https://www.gs1.org/standards/barcodes/ean-upc";
declare const EAN_8_LENGTH: 8;
declare const EAN_13_LENGTH: 13;
/** Golden EAN-13 from GS1 examples (modulo-10 weights 1/3). */
declare const EAN_GOLDEN_13: "4006381333931";
declare const EAN_GOLDEN_13_MASKED: "4 006381 333931";
/** Golden EAN-8 from GS1 examples. */
declare const EAN_GOLDEN_8: "96385074";
declare const EAN_GOLDEN_8_MASKED: "9638 5074";
type EanFormat = 'ean-8' | 'ean-13';

/** Best-effort format detection from stripped length (8 or 13 digits only). */
declare function detectEanFormat(input: string): EanFormat | null;

/** GS1 human-readable grouping — EAN-13: 1-6-6, EAN-8: 4-4. */
declare function applyEanMask(canonical: string): string;

/**
 * GS1 modulo-10 check digit — alternating weights 1 and 3 from the left (excluding check digit).
 * @see https://www.gs1.org/standards/barcodes/ean-upc
 */
declare function computeGs1Modulo10Sum(digitsWithoutCheck: string): number;
declare function computeGs1Modulo10CheckDigit(digitsWithoutCheck: string): number;
/** Returns true when the full digit string passes GS1 modulo-10. */
declare function passesGs1Modulo10(digits: string): boolean;

declare function isValidGs1Modulo10(input: string): boolean;
declare function isValidEan(input: string): boolean;
declare function validateEan(input: string): EanValidationResult;

/**
 * Strip EAN mask — digits only.
 * @see https://www.gs1.org/standards/barcodes/ean-upc
 */
declare function stripEan(input: string): string;

declare function formatEan(input: string): FormatResult;

export { EAN_13_LENGTH, EAN_8_LENGTH, EAN_GOLDEN_13, EAN_GOLDEN_13_MASKED, EAN_GOLDEN_8, EAN_GOLDEN_8_MASKED, EAN_OFFICIAL_SOURCE_URL, type EanFormat, EanValidationResult, FormatResult, applyEanMask, computeGs1Modulo10CheckDigit, computeGs1Modulo10Sum, detectEanFormat, formatEan, isValidEan, isValidGs1Modulo10, passesGs1Modulo10, stripEan, validateEan };