stdnum
Version:
Standard Number Validation
52 lines • 4.54 kB
JavaScript
import * as exceptions from '../exceptions';
import { strings, weightedSum } from '../util';
function clean(input) {
return strings.cleanUnicode(input, ',.- ');
}
const impl = {
name: 'Colombian Tax Identification Number',
localName: 'Número de Identificación Tributaria',
abbreviation: 'NIT',
compact(input) {
const [value, err] = clean(input);
if (err) {
throw err;
}
return value.toLocaleUpperCase();
},
format(input) {
const [value] = clean(input);
const [p1, p2, p3, p4] = strings.splitAt(value, 3, 6, 9);
return `${p1}.${p2}.${p3}-${p4}`;
},
validate(input) {
const [value, error] = clean(input);
if (error) {
return { isValid: false, error };
}
if (value.length < 8 || value.length > 16) {
return { isValid: false, error: new exceptions.InvalidLength() };
}
if (!strings.isdigits(value)) {
return { isValid: false, error: new exceptions.InvalidComponent() };
}
const [front, check] = strings.splitAt(value, -1);
const sum = weightedSum(front, {
weights: [3, 7, 13, 17, 19, 23, 29, 37, 41, 43, 47, 53, 59, 67, 71],
reverse: true,
modulus: 11,
});
const digit = '01987654321'[sum];
if (check !== digit) {
return { isValid: false, error: new exceptions.InvalidChecksum() };
}
return {
isValid: true,
compact: value,
isIndividual: true,
isCompany: true,
};
},
};
export const { name, localName, abbreviation, validate, format, compact } = impl;
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