import { QRType, QRData } from '../types';
/**
 * Validates if a string is a valid URL
 */
export declare function isValidUrl(url: string): boolean;
/**
 * Validates if a string is a valid email address
 */
export declare function isValidEmail(email: string): boolean;
/**
 * Validates if a string is a valid phone number
 */
export declare function isValidPhoneNumber(phone: string): boolean;
/**
 * Validates if a string is a valid hex color
 */
export declare function isValidHexColor(color: string): boolean;
/**
 * Validates if a number is a valid QR code size
 */
export declare function isValidQRSize(size: number): boolean;
/**
 * Validates QR data based on type
 */
export declare function validateQRData(type: QRType, data: QRData): boolean;
/**
 * Validates EAN-13 barcode (13 digits with checksum)
 */
export declare function isValidEAN13(code: string): boolean;
/**
 * Validates EAN-8 barcode (8 digits with checksum)
 */
export declare function isValidEAN8(code: string): boolean;
/**
 * Validates UPC-A barcode (12 digits with checksum)
 */
export declare function isValidUPCA(code: string): boolean;
/**
 * Validates UPC-E barcode (8 digits, converts to UPC-A internally)
 */
export declare function isValidUPCE(code: string): boolean;
/**
 * Validates Code 128 barcode (alphanumeric with ASCII 0-127)
 */
export declare function isValidCode128(code: string): boolean;
/**
 * Validates Code 39 barcode (uppercase letters, digits, and special characters)
 */
export declare function isValidCode39(code: string): boolean;
/**
 * Validates Code 93 barcode (similar to Code 39 but more compact)
 */
export declare function isValidCode93(code: string): boolean;
/**
 * Validates ITF (Interleaved 2 of 5) barcode (even number of digits)
 */
export declare function isValidITF(code: string): boolean;
/**
 * Validates Codabar barcode (digits and special start/stop characters)
 */
export declare function isValidCodabar(code: string): boolean;
/**
 * Validates barcode data based on format
 */
export declare function validateBarcodeData(format: string, data: string): boolean;
/**
 * Gets barcode format constraints
 */
export declare function getBarcodeConstraints(format: string): {
    minLength?: number;
    maxLength?: number;
    fixedLength?: number;
    pattern?: string;
    description: string;
};