stdnum
Version:
Standard Number Validation
90 lines • 6.42 kB
JavaScript
;
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Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
o["default"] = v;
});
var __importStar = (this && this.__importStar) || (function () {
var ownKeys = function(o) {
ownKeys = Object.getOwnPropertyNames || function (o) {
var ar = [];
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})();
Object.defineProperty(exports, "__esModule", { value: true });
exports.compact = exports.format = exports.validate = exports.abbreviation = exports.localName = exports.name = void 0;
const exceptions = __importStar(require("../exceptions"));
const util_1 = require("../util");
function clean(input) {
return util_1.strings.cleanUnicode(input, ' -');
}
const alphabet = '0123456789ABCDEFGHJKLMNPQRTUWXY';
const impl = {
name: 'Chinese Unified Social Credit Code',
localName: '统一社会信用代码',
abbreviation: 'USCC',
compact(input) {
const [value, err] = clean(input);
if (err) {
throw err;
}
return value;
},
format(input) {
const [value] = clean(input);
return value;
},
validate(input) {
const [value, error] = clean(input);
if (error) {
return { isValid: false, error };
}
if (value.length !== 18) {
return { isValid: false, error: new exceptions.InvalidLength() };
}
const [front, back, check] = util_1.strings.splitAt(value, 8, 17);
if (!util_1.strings.isdigits(front)) {
return { isValid: false, error: new exceptions.InvalidFormat() };
}
if (back.split('').some(v => !alphabet.includes(v))) {
return { isValid: false, error: new exceptions.InvalidFormat() };
}
const digit = (0, util_1.weightedSum)(value.substr(0, 17), {
weights: [1, 3, 9, 27, 19, 26, 16, 17, 20, 29, 25, 13, 8, 24, 10, 30, 28],
modulus: 31,
alphabet,
});
if (alphabet[31 - digit] !== check) {
return { isValid: false, error: new exceptions.InvalidChecksum() };
}
return {
isValid: true,
compact: value,
isIndividual: false,
isCompany: true,
};
},
};
exports.name = impl.name, exports.localName = impl.localName, exports.abbreviation = impl.abbreviation, exports.validate = impl.validate, exports.format = impl.format, exports.compact = impl.compact;
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