stdnum
Version:
Standard Number Validation
51 lines • 4.32 kB
JavaScript
import * as exceptions from '../exceptions';
import { strings } from '../util';
import { calcCheckDigit } from './vat';
function clean(input) {
return strings.cleanUnicode(input, ' -');
}
const ppsRe = /^\d{7}[A-W][AHWTX]?$/;
const impl = {
name: 'Irish Personal Number',
localName: 'Personal Public Service Number',
abbreviation: 'PPS',
compact(input) {
const [value, err] = clean(input);
if (err) {
throw err;
}
return value;
},
format(input) {
const [value] = clean(input);
return value;
},
validate(input) {
const [value, error] = clean(input);
if (error) {
return { isValid: false, error };
}
if (value.length !== 8 && value.length !== 9) {
return { isValid: false, error: new exceptions.InvalidLength() };
}
if (!ppsRe.test(value)) {
return { isValid: false, error: new exceptions.InvalidFormat() };
}
if (value.length === 9 && 'AH'.includes(value[8])) {
if (value[7] !== calcCheckDigit(`${value.substr(0, 7)}${value.substr(8)}`)) {
return { isValid: false, error: new exceptions.InvalidChecksum() };
}
}
else if (value[7] !== calcCheckDigit(value.substr(0, 7))) {
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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