stdnum
Version:
Standard Number Validation
133 lines • 9.28 kB
JavaScript
import * as exceptions from '../exceptions';
import { isValidDateCompactYYMMDD, strings, weightedSum } from '../util';
function clean(input) {
return strings.cleanUnicode(input, '-_ ');
}
const nameBlacklist = new Set([
'BUEI',
'BUEY',
'CACA',
'CACO',
'CAGA',
'CAGO',
'CAKA',
'CAKO',
'COGE',
'COJA',
'COJE',
'COJI',
'COJO',
'CULO',
'FETO',
'GUEY',
'JOTO',
'KACA',
'KACO',
'KAGA',
'KAGO',
'KAKA',
'KOGE',
'KOJO',
'KULO',
'MAME',
'MAMO',
'MEAR',
'MEAS',
'MEON',
'MION',
'MOCO',
'MULA',
'PEDA',
'PEDO',
'PENE',
'PUTA',
'PUTO',
'QULO',
'RATA',
'RUIN',
]);
const checkAlphabet = '0123456789ABCDEFGHIJKLMN&OPQRSTUVWXYZ Ñ';
const impl = {
name: 'Mexican Tax Number',
localName: 'Registro Federal de Contribuyentes',
abbreviation: 'RFC',
compact(input) {
const [value, err] = clean(input);
if (err) {
throw err;
}
return value.toLocaleUpperCase();
},
format(input) {
const [value] = clean(input);
if (value.length === 12) {
return strings.splitAt(value, 3, 9).join(' ');
}
if (value.length === 13) {
return strings.splitAt(value, 4, 10).join(' ');
}
return strings.splitAt(value, 4).join(' ');
},
validate(input) {
const [value, error] = clean(input);
if (error) {
return { isValid: false, error };
}
if (value.length === 10 || value.length === 13) {
if (!/^[A-Z&Ñ]{4}[0-9]{6}([0-9A-Z]{3})?$/.test(value)) {
return { isValid: false, error: new exceptions.InvalidComponent() };
}
if (nameBlacklist.has(value.substr(0, 4))) {
return { isValid: false, error: new exceptions.InvalidComponent() };
}
if (!isValidDateCompactYYMMDD(value.substr(4, 6), true)) {
return { isValid: false, error: new exceptions.InvalidComponent() };
}
}
else if (value.length === 12) {
if (!/^[A-Z&Ñ]{3}[0-9]{6}[0-9A-Z]{3}$/.test(value)) {
return { isValid: false, error: new exceptions.InvalidComponent() };
}
if (!isValidDateCompactYYMMDD(value.substr(3, 6))) {
return { isValid: false, error: new exceptions.InvalidComponent() };
}
}
else {
return { isValid: false, error: new exceptions.InvalidLength() };
}
if (value.length >= 12) {
if (!/[1-9A-V][1-9A-Z][0-9A]$/.test(value)) {
return { isValid: false, error: new exceptions.InvalidComponent() };
}
const [front, check] = strings.splitAt(value, -1);
const sum = weightedSum(front.padStart(12, ' '), {
modulus: 11,
alphabet: checkAlphabet,
weights: [2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14],
reverse: true,
});
const mod = 11 - (sum % 11);
let val;
if (mod === 11) {
val = '0';
}
else if (mod === 10) {
val = 'A';
}
else {
val = String(mod);
}
if (check !== val) {
return { isValid: false, error: new exceptions.InvalidChecksum() };
}
}
return {
isValid: true,
compact: value,
isIndividual: value.length !== 12,
isCompany: value.length === 12,
};
},
};
export const { name, localName, abbreviation, validate, format, compact } = impl;
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