michael@0: /* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */
michael@0: 
michael@0: // Don't modify this code. Please use:
michael@0: // https://github.com/andreasgal/PhoneNumber.js
michael@0: 
michael@0: "use strict";
michael@0: 
michael@0: this.EXPORTED_SYMBOLS = ["PhoneNumberNormalizer"];
michael@0: 
michael@0: this.PhoneNumberNormalizer = (function() {
michael@0:   const UNICODE_DIGITS = /[\uFF10-\uFF19\u0660-\u0669\u06F0-\u06F9]/g;
michael@0:   const VALID_ALPHA_PATTERN = /[a-zA-Z]/g;
michael@0:   const LEADING_PLUS_CHARS_PATTERN = /^[+\uFF0B]+/g;
michael@0:   const NON_DIALABLE_CHARS = /[^,#+\*\d]/g;
michael@0: 
michael@0:   // Map letters to numbers according to the ITU E.161 standard
michael@0:   var E161 = {
michael@0:     'a': 2, 'b': 2, 'c': 2,
michael@0:     'd': 3, 'e': 3, 'f': 3,
michael@0:     'g': 4, 'h': 4, 'i': 4,
michael@0:     'j': 5, 'k': 5, 'l': 5,
michael@0:     'm': 6, 'n': 6, 'o': 6,
michael@0:     'p': 7, 'q': 7, 'r': 7, 's': 7,
michael@0:     't': 8, 'u': 8, 'v': 8,
michael@0:     'w': 9, 'x': 9, 'y': 9, 'z': 9
michael@0:   };
michael@0: 
michael@0:   // Normalize a number by converting unicode numbers and symbols to their
michael@0:   // ASCII equivalents and removing all non-dialable characters.
michael@0:   function NormalizeNumber(number, numbersOnly) {
michael@0:     if (typeof number !== 'string') {
michael@0:       return '';
michael@0:     }
michael@0: 
michael@0:     number = number.replace(UNICODE_DIGITS,
michael@0:                             function (ch) {
michael@0:                               return String.fromCharCode(48 + (ch.charCodeAt(0) & 0xf));
michael@0:                             });
michael@0:     if (!numbersOnly) {
michael@0:       number = number.replace(VALID_ALPHA_PATTERN,
michael@0:                               function (ch) {
michael@0:                                 return String(E161[ch.toLowerCase()] || 0);
michael@0:                               });
michael@0:     }
michael@0:     number = number.replace(LEADING_PLUS_CHARS_PATTERN, "+");
michael@0:     number = number.replace(NON_DIALABLE_CHARS, "");
michael@0:     return number;
michael@0:   };
michael@0: 
michael@0: 
michael@0:   return {
michael@0:     Normalize: NormalizeNumber
michael@0:   };
michael@0: })();