mirror of
https://github.com/swc-project/swc.git
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133 lines
2.4 KiB
TypeScript
133 lines
2.4 KiB
TypeScript
// Loaded from https://deno.land/x/segno@v1.1.0/lib/validations/isTaxID.ts
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/**
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* An Employer Identification Number (EIN), also known as a Federal Tax Identification Number,
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* is used to identify a business entity.
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*
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* NOTES:
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* - Prefix 47 is being reserved for future use
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* - Prefixes 26, 27, 45, 46 and 47 were previously assigned by the Philadelphia campus.
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*
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* See `http://www.irs.gov/Businesses/Small-Businesses-&-Self-Employed/How-EINs-are-Assigned-and-Valid-EIN-Prefixes`
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* for more information.
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*/
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// @ts-ignore allowing typedoc to build
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import { assertString } from '../helpers/assertString.ts';
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/**
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* Campus prefixes according to locales
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*/
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/**
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* @ignore
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*/
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const campusPrefix = {
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'en-US': {
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andover: ['10', '12'],
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atlanta: ['60', '67'],
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austin: ['50', '53'],
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brookhaven: [
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'01',
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'02',
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'03',
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'04',
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'05',
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'06',
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'11',
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'13',
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'14',
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'16',
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'21',
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'22',
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'23',
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'25',
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'34',
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'51',
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'52',
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'54',
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'55',
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'56',
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'57',
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'58',
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'59',
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'65',
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],
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cincinnati: ['30', '32', '35', '36', '37', '38', '61'],
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fresno: ['15', '24'],
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internet: ['20', '26', '27', '45', '46', '47'],
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kansas: ['40', '44'],
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memphis: ['94', '95'],
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ogden: ['80', '90'],
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philadelphia: [
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'33',
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'39',
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'41',
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'42',
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'43',
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'46',
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'48',
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'62',
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'63',
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'64',
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'66',
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'68',
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'71',
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'72',
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'73',
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'74',
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'75',
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'76',
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'77',
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'81',
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'82',
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'83',
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'84',
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'85',
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'86',
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'87',
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'88',
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'91',
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'92',
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'93',
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'98',
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'99',
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],
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sba: ['31'],
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},
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};
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/**
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* @ignore
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*/
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const getPrefixes = (locale: string) => {
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const prefixes = [];
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for (const location in (campusPrefix as any)[locale]) {
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if ((campusPrefix as any)[locale].hasOwnProperty(location)) {
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prefixes.push(...(campusPrefix as any)[locale][location]);
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}
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}
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prefixes.sort();
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return prefixes;
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};
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// tax id regex formats for various loacles
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/**
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* @ignore
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*/
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const taxIdFormat = {
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'en-US': /^\d{2}[- ]{0,1}\d{7}$/,
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};
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export const isTaxID = (str: string, locale = 'en-US') => {
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assertString(str);
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if (!(taxIdFormat as any)[locale].test(str)) {
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return false;
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}
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return getPrefixes(locale).indexOf(str.substr(0, 2)) !== -1;
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};
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