mirror of https://github.com/moparisthebest/mail
49 lines
1.4 KiB
JavaScript
49 lines
1.4 KiB
JavaScript
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var PhoneNumberNormalizer = (function() {
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"use strict";
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var UNICODE_DIGITS = /[\uFF10-\uFF19\u0660-\u0669\u06F0-\u06F9]/g,
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VALID_ALPHA_PATTERN = /[a-zA-Z]/g,
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LEADING_PLUS_CHARS_PATTERN = /^[+\uFF0B]+/g,
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NON_DIALABLE_CHARS = /[^,#+\*\d]/g;
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// Map letters to numbers according to the ITU E.161 standard
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var 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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