quran/node_modules/libphonenumber-js/es6/helpers/extractFormattedPhoneNumberFromPossibleRfc3966NumberUri.js

import extractPhoneContext, { isPhoneContextValid, PLUS_SIGN, RFC3966_PREFIX_, RFC3966_PHONE_CONTEXT_, RFC3966_ISDN_SUBADDRESS_ } from './extractPhoneContext.js';
import ParseError from '../ParseError.js';
/**
 * @param  {string} numberToParse
 * @param  {string} nationalNumber
 * @return {}
 */

export default function extractFormattedPhoneNumberFromPossibleRfc3966NumberUri(numberToParse, _ref) {
  var extractFormattedPhoneNumber = _ref.extractFormattedPhoneNumber;
  var phoneContext = extractPhoneContext(numberToParse);

  if (!isPhoneContextValid(phoneContext)) {
    throw new ParseError('NOT_A_NUMBER');
  }

  var phoneNumberString;

  if (phoneContext === null) {
    // Extract a possible number from the string passed in.
    // (this strips leading characters that could not be the start of a phone number)
    phoneNumberString = extractFormattedPhoneNumber(numberToParse) || '';
  } else {
    phoneNumberString = ''; // If the phone context contains a phone number prefix, we need to capture
    // it, whereas domains will be ignored.

    if (phoneContext.charAt(0) === PLUS_SIGN) {
      phoneNumberString += phoneContext;
    } // Now append everything between the "tel:" prefix and the phone-context.
    // This should include the national number, an optional extension or
    // isdn-subaddress component. Note we also handle the case when "tel:" is
    // missing, as we have seen in some of the phone number inputs.
    // In that case, we append everything from the beginning.


    var indexOfRfc3966Prefix = numberToParse.indexOf(RFC3966_PREFIX_);
    var indexOfNationalNumber; // RFC 3966 "tel:" prefix is preset at this stage because
    // `isPhoneContextValid()` requires it to be present.

    /* istanbul ignore else */

    if (indexOfRfc3966Prefix >= 0) {
      indexOfNationalNumber = indexOfRfc3966Prefix + RFC3966_PREFIX_.length;
    } else {
      indexOfNationalNumber = 0;
    }

    var indexOfPhoneContext = numberToParse.indexOf(RFC3966_PHONE_CONTEXT_);
    phoneNumberString += numberToParse.substring(indexOfNationalNumber, indexOfPhoneContext);
  } // Delete the isdn-subaddress and everything after it if it is present.
  // Note extension won't appear at the same time with isdn-subaddress
  // according to paragraph 5.3 of the RFC3966 spec.


  var indexOfIsdn = phoneNumberString.indexOf(RFC3966_ISDN_SUBADDRESS_);

  if (indexOfIsdn > 0) {
    phoneNumberString = phoneNumberString.substring(0, indexOfIsdn);
  } // If both phone context and isdn-subaddress are absent but other
  // parameters are present, the parameters are left in nationalNumber.
  // This is because we are concerned about deleting content from a potential
  // number string when there is no strong evidence that the number is
  // actually written in RFC3966.


  if (phoneNumberString !== '') {
    return phoneNumberString;
  }
}
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