stdnum
Version:
Standard Number Validation
68 lines • 5.56 kB
JavaScript
import * as exceptions from '../exceptions';
import { isValidDateCompactYYYYMMDD, strings } from '../util';
import { weightedSum } from '../util/checksum';
function clean(input) {
return strings.cleanUnicode(input, ' -/');
}
const centuryPrefix = {
0: 18,
1: 19,
2: 19,
3: 20,
4: 20,
5: 19,
6: 19,
7: 20,
8: 20,
9: 18,
};
const impl = {
name: 'South Korean Resident Registration Number',
localName: '주민등록번호',
abbreviation: 'RRN',
compact(input) {
const [value, err] = clean(input);
if (err) {
throw err;
}
return value;
},
format(input) {
const [value] = clean(input);
return strings.splitAt(value, 6).join('-');
},
validate(input) {
const [value, error] = clean(input);
if (error) {
return { isValid: false, error };
}
if (value.length !== 13) {
return { isValid: false, error: new exceptions.InvalidLength() };
}
if (!strings.isdigits(value)) {
return { isValid: false, error: new exceptions.InvalidFormat() };
}
const [dob, century, place, , check] = strings.splitAt(value, 6, 7, 9, 12);
if (!isValidDateCompactYYYYMMDD(`${centuryPrefix[century]}${dob}`, true)) {
return { isValid: false, error: new exceptions.InvalidComponent() };
}
if (parseInt(place, 10) > 96) {
return { isValid: false, error: new exceptions.InvalidComponent() };
}
const sum = weightedSum(value.substr(0, 12), {
modulus: 11,
weights: [2, 3, 4, 5, 6, 7, 8, 9, 2, 3, 4, 5],
});
if (String((11 - sum) % 10) !== 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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