libphonenumber-js
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A simpler (and smaller) rewrite of Google Android's libphonenumber library in javascript
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JavaScript
// This is a port of Google Android `libphonenumber`'s
// `phonenumberutil.js` of December 31th, 2018.
//
// https://github.com/googlei18n/libphonenumber/commits/master/javascript/i18n/phonenumbers/phonenumberutil.js
import matchesEntirely from './helpers/matchesEntirely.js';
import formatNationalNumberUsingFormat from './helpers/formatNationalNumberUsingFormat.js';
import Metadata, { getCountryCallingCode } from './metadata.js';
import getIddPrefix from './helpers/getIddPrefix.js';
import { formatRFC3966 } from './helpers/RFC3966.js';
var DEFAULT_OPTIONS = {
formatExtension: function formatExtension(formattedNumber, extension, metadata) {
return "".concat(formattedNumber).concat(metadata.ext()).concat(extension);
}
};
/**
* Formats a phone number.
*
* format(phoneNumberInstance, 'INTERNATIONAL', { ..., v2: true }, metadata)
* format(phoneNumberInstance, 'NATIONAL', { ..., v2: true }, metadata)
*
* format({ phone: '8005553535', country: 'RU' }, 'INTERNATIONAL', { ... }, metadata)
* format({ phone: '8005553535', country: 'RU' }, 'NATIONAL', undefined, metadata)
*
* @param {object|PhoneNumber} input — If `options.v2: true` flag is passed, the `input` should be a `PhoneNumber` instance. Otherwise, it should be an object of shape `{ phone: '...', country: '...' }`.
* @param {string} format
* @param {object} [options]
* @param {object} metadata
* @return {string}
*/
export default function formatNumber(input, format, options, metadata) {
// Apply default options.
if (options) {
// Using ES6 "rest spread" syntax here didn't work with `babel`/`istanbul`
// for some weird reason: this line of code would cause the code coverage
// to show as not 100%. That's because `babel`/`istanbul`, for some weird reason,
// apparently doesn't know how to properly exclude Babel polyfills from code coverage.
//
// options = { ...DEFAULT_OPTIONS, ...options }
//
options = merge({}, DEFAULT_OPTIONS, options);
} else {
options = DEFAULT_OPTIONS;
}
metadata = new Metadata(metadata);
if (input.country && input.country !== '001') {
// Validate `input.country`.
if (!metadata.hasCountry(input.country)) {
throw new Error("Unknown country: ".concat(input.country));
}
metadata.selectNumberingPlan(input.country);
} else if (input.countryCallingCode) {
metadata.selectNumberingPlan(input.countryCallingCode);
} else return input.phone || '';
var countryCallingCode = metadata.countryCallingCode();
var nationalNumber = options.v2 ? input.nationalNumber : input.phone;
// This variable should have been declared inside `case`s
// but Babel has a bug and it says "duplicate variable declaration".
var number;
switch (format) {
case 'NATIONAL':
// Legacy argument support.
// (`{ country: ..., phone: '' }`)
if (!nationalNumber) {
return '';
}
number = formatNationalNumber(nationalNumber, input.carrierCode, 'NATIONAL', metadata, options);
return addExtension(number, input.ext, metadata, options.formatExtension);
case 'INTERNATIONAL':
// Legacy argument support.
// (`{ country: ..., phone: '' }`)
if (!nationalNumber) {
return "+".concat(countryCallingCode);
}
number = formatNationalNumber(nationalNumber, null, 'INTERNATIONAL', metadata, options);
number = "+".concat(countryCallingCode, " ").concat(number);
return addExtension(number, input.ext, metadata, options.formatExtension);
case 'E.164':
// `E.164` doesn't define "phone number extensions".
return "+".concat(countryCallingCode).concat(nationalNumber);
case 'RFC3966':
return formatRFC3966({
number: "+".concat(countryCallingCode).concat(nationalNumber),
ext: input.ext
});
// For reference, here's Google's IDD formatter:
// https://github.com/google/libphonenumber/blob/32719cf74e68796788d1ca45abc85dcdc63ba5b9/java/libphonenumber/src/com/google/i18n/phonenumbers/PhoneNumberUtil.java#L1546
// Not saying that this IDD formatter replicates it 1:1, but it seems to work.
// Who would even need to format phone numbers in IDD format anyway?
case 'IDD':
if (!options.fromCountry) {
return;
// throw new Error('`fromCountry` option not passed for IDD-prefixed formatting.')
}
var formattedNumber = formatIDD(nationalNumber, input.carrierCode, countryCallingCode, options.fromCountry, metadata);
return addExtension(formattedNumber, input.ext, metadata, options.formatExtension);
default:
throw new Error("Unknown \"format\" argument passed to \"formatNumber()\": \"".concat(format, "\""));
}
}
function formatNationalNumber(number, carrierCode, formatAs, metadata, options) {
var format = chooseFormatForNumber(metadata.formats(), number);
if (!format) {
return number;
}
return formatNationalNumberUsingFormat(number, format, {
useInternationalFormat: formatAs === 'INTERNATIONAL',
withNationalPrefix: format.nationalPrefixIsOptionalWhenFormattingInNationalFormat() && options && options.nationalPrefix === false ? false : true,
carrierCode: carrierCode,
metadata: metadata
});
}
export function chooseFormatForNumber(availableFormats, nationalNumber) {
// Using a `for ... of` loop here didn't work with `babel`/`istanbul`:
// for some weird reason, it showed code coverage less than 100%.
// That's because `babel`/`istanbul`, for some weird reason,
// apparently doesn't know how to properly exclude Babel polyfills from code coverage.
//
// for (const format of availableFormats) { ... }
//
return pickFirstMatchingElement(availableFormats, function (format) {
// Validate leading digits.
// The test case for "else path" could be found by searching for
// "format.leadingDigitsPatterns().length === 0".
if (format.leadingDigitsPatterns().length > 0) {
// The last leading_digits_pattern is used here, as it is the most detailed
var lastLeadingDigitsPattern = format.leadingDigitsPatterns()[format.leadingDigitsPatterns().length - 1];
// If leading digits don't match then move on to the next phone number format
if (nationalNumber.search(lastLeadingDigitsPattern) !== 0) {
return false;
}
}
// Check that the national number matches the phone number format regular expression
return matchesEntirely(nationalNumber, format.pattern());
});
}
function addExtension(formattedNumber, ext, metadata, formatExtension) {
return ext ? formatExtension(formattedNumber, ext, metadata) : formattedNumber;
}
function formatIDD(nationalNumber, carrierCode, countryCallingCode, fromCountry, metadata) {
var fromCountryCallingCode = getCountryCallingCode(fromCountry, metadata.metadata);
// When calling within the same country calling code.
if (fromCountryCallingCode === countryCallingCode) {
var formattedNumber = formatNationalNumber(nationalNumber, carrierCode, 'NATIONAL', metadata);
// For NANPA regions, return the national format for these regions
// but prefix it with the country calling code.
if (countryCallingCode === '1') {
return countryCallingCode + ' ' + formattedNumber;
}
// If regions share a country calling code, the country calling code need
// not be dialled. This also applies when dialling within a region, so this
// if clause covers both these cases. Technically this is the case for
// dialling from La Reunion to other overseas departments of France (French
// Guiana, Martinique, Guadeloupe), but not vice versa - so we don't cover
// this edge case for now and for those cases return the version including
// country calling code. Details here:
// http://www.petitfute.com/voyage/225-info-pratiques-reunion
//
return formattedNumber;
}
var iddPrefix = getIddPrefix(fromCountry, undefined, metadata.metadata);
if (iddPrefix) {
return "".concat(iddPrefix, " ").concat(countryCallingCode, " ").concat(formatNationalNumber(nationalNumber, null, 'INTERNATIONAL', metadata));
}
}
function merge() {
var i = 1;
for (var _len = arguments.length, objects = new Array(_len), _key = 0; _key < _len; _key++) {
objects[_key] = arguments[_key];
}
while (i < objects.length) {
if (objects[i]) {
for (var key in objects[i]) {
objects[0][key] = objects[i][key];
}
}
i++;
}
return objects[0];
}
function pickFirstMatchingElement(elements, testFunction) {
var i = 0;
while (i < elements.length) {
if (testFunction(elements[i])) {
return elements[i];
}
i++;
}
}
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