stdnum
Version:
Standard Number Validation
191 lines • 12.3 kB
JavaScript
;
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
var desc = Object.getOwnPropertyDescriptor(m, k);
if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
desc = { enumerable: true, get: function() { return m[k]; } };
}
Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
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 = [];
for (var k in o) if (Object.prototype.hasOwnProperty.call(o, k)) ar[ar.length] = k;
return ar;
};
return ownKeys(o);
};
return function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k = ownKeys(mod), i = 0; i < k.length; i++) if (k[i] !== "default") __createBinding(result, mod, k[i]);
__setModuleDefault(result, mod);
return result;
};
})();
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");
const checksum_1 = require("../util/checksum");
function clean(input) {
return util_1.strings.cleanUnicode(input, ' ');
}
const OTHER_UEN_ENTITY_TYPES = [
'CC',
'CD',
'CH',
'CL',
'CM',
'CP',
'CS',
'CX',
'DP',
'FB',
'FC',
'FM',
'FN',
'GA',
'GB',
'GS',
'HS',
'LL',
'LP',
'MB',
'MC',
'MD',
'MH',
'MM',
'MQ',
'NB',
'NR',
'PA',
'PB',
'PF',
'RF',
'RP',
'SM',
'SS',
'TC',
'TU',
'VH',
'XL',
];
function validateLocal(value) {
const [front, check] = util_1.strings.splitAt(value, -1);
if (!util_1.strings.isdigits(front)) {
return { isValid: false, error: new exceptions.InvalidComponent() };
}
const sum = (0, checksum_1.weightedSum)(front, {
modulus: 11,
weights: [10, 8, 6, 4, 9, 7, 5, 3, 1],
});
const digit = 'ZKCMDNERGWH'[sum];
if (check !== digit) {
return { isValid: false, error: new exceptions.InvalidChecksum() };
}
return {
isValid: true,
compact: value,
isIndividual: false,
isCompany: true,
};
}
function validateBusiness(value) {
const [front, check] = util_1.strings.splitAt(value, -1);
if (!util_1.strings.isdigits(front)) {
return { isValid: false, error: new exceptions.InvalidComponent() };
}
const sum = (0, checksum_1.weightedSum)(front, {
modulus: 11,
weights: [10, 4, 9, 3, 8, 2, 7, 1],
});
const digit = 'XMKECAWLJDB'[sum];
if (check !== digit) {
return { isValid: false, error: new exceptions.InvalidChecksum() };
}
return {
isValid: true,
compact: value,
isIndividual: false,
isCompany: true,
};
}
function validateOther(value) {
const [kind, year, etype, rest, check] = util_1.strings.splitAt(value, 1, 3, 5, -1);
if (!['R', 'S', 'T'].includes(kind)) {
return { isValid: false, error: new exceptions.InvalidComponent() };
}
if (!util_1.strings.isdigits(year)) {
return { isValid: false, error: new exceptions.InvalidComponent() };
}
if (kind === 'T' && parseInt(year, 10) > new Date().getFullYear() % 100) {
return { isValid: false, error: new exceptions.InvalidComponent() };
}
if (!OTHER_UEN_ENTITY_TYPES.includes(etype)) {
return { isValid: false, error: new exceptions.InvalidComponent() };
}
if (!util_1.strings.isdigits(rest)) {
return { isValid: false, error: new exceptions.InvalidComponent() };
}
const alphabet = 'ABCDEFGHJKLMNPQRSTUVWX0123456789';
const digit = alphabet[((0, checksum_1.weightedSum)(value.substr(0, 9), {
weights: [4, 3, 5, 3, 10, 2, 2, 5, 7],
modulus: 11,
alphabet,
}) +
6) %
11];
if (check !== digit) {
return { isValid: false, error: new exceptions.InvalidChecksum() };
}
return {
isValid: true,
compact: value,
isIndividual: false,
isCompany: true,
};
}
const impl = {
name: 'Singapore Unique Entity Number',
localName: 'Unique Entity Number',
abbreviation: 'UEN',
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 !== 9 && value.length !== 10) {
return { isValid: false, error: new exceptions.InvalidLength() };
}
if (value.length === 9) {
return validateBusiness(value);
}
if (util_1.strings.isdigits(value[0])) {
return validateLocal(value);
}
return validateOther(value);
},
};
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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