stdnum
Version:
Standard Number Validation
60 lines • 4.76 kB
JavaScript
import * as exceptions from '../exceptions';
import { strings } from '../util';
import * as nie from './nie';
import * as dni from './dni';
import * as cif from './cif';
function clean(input) {
const [value, err] = strings.cleanUnicode(input, ' -./');
if (err) {
return [value, err];
}
if (value.startsWith('ES')) {
return [value.substr(2), null];
}
return [value, null];
}
const impl = {
name: 'Spanish VAT Number',
localName: 'Número de Identificación Fiscal',
abbreviation: 'NIF',
compact(input) {
const [value, err] = clean(input);
if (err) {
throw err;
}
return value;
},
format(input) {
const [value] = clean(input);
return strings.splitAt(value, 1).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() };
}
if ('KLM'.includes(value[0])) {
if (value[value.length - 1] !== dni.calcCheckDigit(value.substr(1))) {
return { isValid: false, error: new exceptions.InvalidChecksum() };
}
return {
isValid: true,
compact: value,
isIndividual: true,
isCompany: false,
};
}
if (strings.isdigits(value[0])) {
return dni.validate(value);
}
if ('XYZ'.includes(value[0])) {
return nie.validate(value);
}
return cif.validate(value);
},
};
export const { name, localName, abbreviation, validate, format, compact } = impl;
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