stdnum
Version:
Standard Number Validation
52 lines • 4.32 kB
JavaScript
import * as exceptions from '../exceptions';
import { strings, weightedSum } from '../util';
function clean(input) {
return strings.cleanUnicode(input, ' -');
}
const impl = {
name: 'Uruguayan Foreigners Identification Number',
localName: 'Número de Identidad de Extranjero',
abbreviation: 'NIE',
compact(input) {
const [value, err] = clean(input);
if (err) {
throw err;
}
return value;
},
format(input) {
const [value] = clean(input);
const [a, b, c, d] = strings.splitAt(value, 2, 5, 8);
return `${a}.${b}.${c}-${d}`;
},
validate(input) {
const [value, error] = clean(input);
if (error) {
return { isValid: false, error };
}
if (value.length !== 9) {
return { isValid: false, error: new exceptions.InvalidLength() };
}
if (!strings.isdigits(value)) {
return { isValid: false, error: new exceptions.InvalidFormat() };
}
const [front, check] = strings.splitAt(value, 8);
const digit = String((11 -
weightedSum(front, {
weights: [5, 4, 3, 2, 9, 8, 7, 6, 5, 4, 3, 2],
modulus: 11,
})) %
10);
if (check !== digit) {
return { isValid: false, error: new exceptions.InvalidChecksum() };
}
return {
isValid: true,
compact: value,
isIndividual: true,
isCompany: false,
};
},
};
export const { name, localName, abbreviation, validate, format, compact } = impl;
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