stdnum
Version:
Standard Number Validation
51 lines • 4.25 kB
JavaScript
import * as exceptions from '../exceptions';
import { strings } from '../util';
const checkDigits = 'TRWAGMYFPDXBNJZSQVHLCKE';
export function calcCheckDigit(value) {
return checkDigits[parseInt(value.substr(0, 8), 10) % 23];
}
function clean(input) {
return strings.cleanUnicode(input, ' -');
}
const impl = {
name: 'Spanish Personal Identify Code',
localName: 'Documento Nacional de Identidad',
abbreviation: 'DNI',
compact(input) {
const [value, err] = clean(input);
if (err) {
throw err;
}
return value;
},
format(input) {
const [value] = clean(input);
return strings.splitAt(value, 8).join('-');
},
validate(input) {
const [value, error] = clean(input);
if (error) {
return { isValid: false, error };
}
if (value.length !== 9) {
return { isValid: false, error: new exceptions.InvalidLength() };
}
const [body, check] = strings.splitAt(value, 8);
if ('KLM'.includes(body[0]) && strings.isdigits(body.substring(1))) {
}
else if (!strings.isdigits(body)) {
return { isValid: false, error: new exceptions.InvalidComponent() };
}
else if (calcCheckDigit(body) !== check) {
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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