libphonenumber-js/build/helpers/stripIddPrefix.js

A simpler (and smaller) rewrite of Google Android's libphonenumber library in javascript

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports["default"] = stripIddPrefix;
var _metadata = _interopRequireDefault(require("../metadata.js"));
var _constants = require("../constants.js");
function _interopRequireDefault(e) { return e && e.__esModule ? e : { "default": e }; }
var CAPTURING_DIGIT_PATTERN = new RegExp('([' + _constants.VALID_DIGITS + '])');
function stripIddPrefix(number, country, callingCode, metadata) {
  if (!country) {
    return;
  }
  // Check if the number is IDD-prefixed.
  var countryMetadata = new _metadata["default"](metadata);
  countryMetadata.selectNumberingPlan(country, callingCode);
  var IDDPrefixPattern = new RegExp(countryMetadata.IDDPrefix());
  if (number.search(IDDPrefixPattern) !== 0) {
    return;
  }
  // Strip IDD prefix.
  number = number.slice(number.match(IDDPrefixPattern)[0].length);
  // If there're any digits after an IDD prefix,
  // then those digits are a country calling code.
  // Since no country code starts with a `0`,
  // the code below validates that the next digit (if present) is not `0`.
  var matchedGroups = number.match(CAPTURING_DIGIT_PATTERN);
  if (matchedGroups && matchedGroups[1] != null && matchedGroups[1].length > 0) {
    if (matchedGroups[1] === '0') {
      return;
    }
  }
  return number;
}
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