(function (global, factory) {
    typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
    typeof define === 'function' && define.amd ? define(factory) :
    (global = typeof globalThis !== 'undefined' ? globalThis : global || self, (global.FormValidation = global.FormValidation || {}, global.FormValidation.validators = global.FormValidation.validators || {}, global.FormValidation.validators.cusip = factory()));
})(this, (function () { 'use strict';

    /**
     * FormValidation (https://formvalidation.io)
     * The best validation library for JavaScript
     * (c) 2013 - 2023 Nguyen Huu Phuoc <me@phuoc.ng>
     */
    function cusip() {
        return {
            /**
             * Validate a CUSIP number
             * @see http://en.wikipedia.org/wiki/CUSIP
             */
            validate: function (input) {
                if (input.value === '') {
                    return { valid: true };
                }
                var value = input.value.toUpperCase();
                // O, I aren't allowed
                if (!/^[0123456789ABCDEFGHJKLMNPQRSTUVWXYZ*@#]{9}$/.test(value)) {
                    return { valid: false };
                }
                // Get the last char
                var chars = value.split('');
                var lastChar = chars.pop();
                var converted = chars.map(function (c) {
                    var code = c.charCodeAt(0);
                    switch (true) {
                        case c === '*':
                            return 36;
                        case c === '@':
                            return 37;
                        case c === '#':
                            return 38;
                        // Replace A, B, C, ..., Z with 10, 11, ..., 35
                        case code >= 'A'.charCodeAt(0) && code <= 'Z'.charCodeAt(0):
                            return code - 'A'.charCodeAt(0) + 10;
                        default:
                            return parseInt(c, 10);
                    }
                });
                var sum = converted
                    .map(function (v, i) {
                    var double = i % 2 === 0 ? v : 2 * v;
                    return Math.floor(double / 10) + (double % 10);
                })
                    .reduce(function (a, b) { return a + b; }, 0);
                var checkDigit = (10 - (sum % 10)) % 10;
                return { valid: lastChar === "".concat(checkDigit) };
            },
        };
    }

    return cusip;

}));
