/** ********************************
 * Combined for multiple countries *
 ***********************************/
export declare function is_mobile_phone(tel: number | string): boolean;
/**
 * check if the tel is mobile phone number in:
 * - HK (Hong Kong)
 * - SG (Singapore)
 * - AU (Australia)
 * - CN (China Mainland)
 * - MO (Macau)
 *
 * @returns the full tel number with country code, or empty string if not valid
 */
export declare function to_full_mobile_phone(tel: string | number): string;
/**
 * format the mobile phone number with pattern if valid:
 * - HK: +852 xxxx yyyy
 * - SG: +65 xxxx yyyy
 * - AU: +61 4xx xxx xxx
 * - CN: +86 1nn xxxx xxxx
 * - MO: +853 xxxx yyyy
 */
export declare function format_mobile_phone(tel: string | number): string;
/** ******************************
 * Hong Kong mobile phone number *
 *********************************/
/**
 * 4, 7, 8 heading are allowed since 2018
 * news: https://skypost.ulifestyle.com.hk/article/2006268/
 * */
export declare function is_hk_mobile_phone_prefix(tel: string): boolean;
/**
 * with/without +852 prefix
 * */
export declare function is_hk_mobile_phone(tel: number | string): boolean;
/**
 * very forgiving
 *
 * @return +852xxxxyyyy if valid
 *         empty string if not valid
 * */
export declare function to_full_hk_mobile_phone(tel: string | number): string;
/**
 * @returns +852 xxxx yyyy if valid
 */
export declare function format_hk_mobile_phone(tel: string | number): string;
/** ******************************
 * Singapore mobile phone number *
 *********************************/
/**
 * starts with 8, 9
 * reference: https://en.wikipedia.org/wiki/Telephone_numbers_in_Singapore
 */
export declare function is_sg_mobile_phone_prefix(tel: string): boolean;
/**
 * with/without +65 prefix
 */
export declare function is_sg_mobile_phone(tel: number | string): boolean;
/**
 * very forgiving
 *
 * @returns +65xxxxyyyy if valid
 *          empty string if not valid
 */
export declare function to_full_sg_mobile_phone(tel: string | number): string;
/**
 * @returns +65 xxxx yyyy if valid
 */
export declare function format_sg_mobile_phone(tel: string | number): string;
/** ******************************
 * Australia mobile phone number *
 *********************************/
export declare function is_au_mobile_phone_prefix(tel: string): boolean;
/**
 * with/without +61 prefix
 */
export declare function is_au_mobile_phone(tel: number | string): boolean;
/**
 * landline number example:
 * excluding area code: xxxx xxxx
 * including area code: (07) xxxx xxxx
 * including country and area code: +61 7 xxxx xxxx
 * the area code can be 2-digit, being "0x", or 1 digit, being "1"
 *
 * mobile number example:
 * country code: +61
 * mobile prefix: e.g. starting with 4 (area and operator code)
 * local number: 8 digits
 *
 * Within Australia, mobile phone numbers begin with 04– the Australian national trunk code 0,
 * plus the mobile indicator 4 – followed by eight digits.
 *
 * This is generally written as 04XX XXX XXX within Australia,
 * or as +61 4XX XXX XXX for an international audience.
 *
 * reference: https://en.wikipedia.org/wiki/Telephone_numbers_in_Australia
 */
export declare function to_full_au_mobile_phone(tel: string | number): string;
export declare function format_au_mobile_phone(tel: string | number): string;
/** **************************
 * China mobile phone number *
 *****************************/
/**
 * starts with 1, second digit is 3,4, 5, 6, 7, 8
 * reference: https://en.wikipedia.org/wiki/Telephone_numbers_in_China
 */
export declare function is_cn_mobile_phone_prefix(tel: string): boolean;
/**
 * with/without +86 prefix
 */
export declare function is_cn_mobile_phone(tel: number | string): boolean;
/**
 * @returns +86xxxxxxxxxx if valid
 *          empty string if not valid
 *
 * should be 1xx-XXXX-XXXX (except for 140–144, which are 13-digit IoT numbers)
 * in which the first three digits (13x to 19x) designate the mobile phone service provider.
 */
export declare function to_full_cn_mobile_phone(tel: string | number): string;
/**
 * @returns +86 1nn xxxx xxxx if valid
 */
export declare function format_cn_mobile_phone(tel: string | number): string;
/** ******************************
 * Macau mobile phone number *
 *********************************/
/**
 * starts with 6
 * news: https://en.wikipedia.org/wiki/Telephone_numbers_in_Macau
 * */
export declare function is_mo_mobile_phone_prefix(tel: string): boolean;
/**
 * with/without +853 prefix
 * */
export declare function is_mo_mobile_phone(tel: number | string): boolean;
/**
 * very forgiving
 *
 * @return +853xxxxyyyy if valid
 *         empty string if not valid
 * */
export declare function to_full_mo_mobile_phone(tel: string | number): string;
/**
 * @returns +853 xxxx yyyy if valid
 */
export declare function format_mo_mobile_phone(tel: string | number): string;
/** *****************
 * helper functions *
 ********************/
/**
 * helper function to format tel with pattern
 */
export declare function format_tel_with_pattern(tel: string, pattern: string): string;