gecko/dom/phonenumberutils/PhoneNumberNormalizer.jsm

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