forked from mirrors/gecko-dev
56 lines
1.9 KiB
JavaScript
56 lines
1.9 KiB
JavaScript
/* This Source Code Form is subject to the terms of the Apache License, Version
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* 2.0. If a copy of the Apache License was not distributed with this file, You
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* can obtain one at https://www.apache.org/licenses/LICENSE-2.0 */
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// This library came from https://github.com/andreasgal/PhoneNumber.js but will
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// be further maintained by our own in Form Autofill codebase.
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"use strict";
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var EXPORTED_SYMBOLS = ["PhoneNumberNormalizer"];
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var PhoneNumberNormalizer = (function() {
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const UNICODE_DIGITS = /[\uFF10-\uFF19\u0660-\u0669\u06F0-\u06F9]/g;
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const VALID_ALPHA_PATTERN = /[a-zA-Z]/g;
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const LEADING_PLUS_CHARS_PATTERN = /^[+\uFF0B]+/g;
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const NON_DIALABLE_CHARS = /[^,#+\*\d]/g;
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// Map letters to numbers according to the ITU E.161 standard
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let E161 = {
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"a": 2, "b": 2, "c": 2,
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"d": 3, "e": 3, "f": 3,
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"g": 4, "h": 4, "i": 4,
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"j": 5, "k": 5, "l": 5,
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"m": 6, "n": 6, "o": 6,
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"p": 7, "q": 7, "r": 7, "s": 7,
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"t": 8, "u": 8, "v": 8,
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"w": 9, "x": 9, "y": 9, "z": 9,
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};
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// Normalize a number by converting unicode numbers and symbols to their
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// ASCII equivalents and removing all non-dialable characters.
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function NormalizeNumber(number, numbersOnly) {
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if (typeof number !== "string") {
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return "";
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}
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number = number.replace(UNICODE_DIGITS,
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function(ch) {
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return String.fromCharCode(48 + (ch.charCodeAt(0) & 0xf));
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});
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if (!numbersOnly) {
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number = number.replace(VALID_ALPHA_PATTERN,
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function(ch) {
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return String(E161[ch.toLowerCase()] || 0);
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});
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}
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number = number.replace(LEADING_PLUS_CHARS_PATTERN, "+");
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number = number.replace(NON_DIALABLE_CHARS, "");
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return number;
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}
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return {
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Normalize: NormalizeNumber,
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};
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})();
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