stdnum/lib/cjs/gb/nino.js

Standard Number Validation

"use strict";
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    Object.defineProperty(o, "default", { enumerable: true, value: v });
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    o["default"] = v;
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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;
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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, ' -.');
}
function validLength(value) {
    return [8, 9].includes(value.length);
}
function isValidPrefix(prefix) {
    const invalidChars = ["D", "F", "I", "Q", "U", "V"];
    const invalidSecondChar = "O";
    const invalidPrefixes = ["BG", "GB", "KN", "NK", "NT", "TN", "ZZ"];
    if (invalidChars.includes(prefix[0]) || invalidChars.includes(prefix[1])) {
        return false;
    }
    if (prefix[1] === invalidSecondChar) {
        return false;
    }
    return !invalidPrefixes.includes(prefix);
}
const VALID_FORMAT_REGEX = /^([A-Z]{2})\d{6}[A-D]?$/;
function validFormat(value) {
    const matchData = value.toUpperCase().match(VALID_FORMAT_REGEX);
    const prefix = value.slice(0, 2).toUpperCase();
    return !!matchData && isValidPrefix(prefix);
}
const impl = {
    name: 'United Kingdom National Insurance Number',
    localName: 'National Insurance Number',
    abbreviation: 'NINO',
    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 (!validLength(value)) {
            return { isValid: false, error: new exceptions.InvalidLength() };
        }
        if (!validFormat(value)) {
            return { isValid: false, error: new exceptions.InvalidFormat() };
        }
        return {
            isValid: true,
            compact: value,
            isIndividual: true,
            isCompany: false,
        };
    },
};
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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