38 lines
1.2 KiB
TypeScript
38 lines
1.2 KiB
TypeScript
/**
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* External dependencies
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*/
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import { POSTCODE_REGEXES } from 'postcode-validator/lib/cjs/postcode-regexes.js';
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const CUSTOM_REGEXES = new Map< string, RegExp >( [
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[ 'BA', /^([7-8]{1})([0-9]{4})$/ ],
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[
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'GB',
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/^([A-Z]){1}([0-9]{1,2}|[A-Z][0-9][A-Z]|[A-Z][0-9]{2}|[A-Z][0-9]|[0-9][A-Z]){1}([ ])?([0-9][A-Z]{2}){1}|BFPO(?:\s)?([0-9]{1,4})$|BFPO(c\/o[0-9]{1,3})$/i,
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],
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[ 'IN', /^[1-9]{1}[0-9]{2}\s{0,1}[0-9]{3}$/ ],
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[ 'JP', /^([0-9]{3})([-]?)([0-9]{4})$/ ],
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[ 'LI', /^(94[8-9][0-9])$/ ],
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[ 'NL', /^([1-9][0-9]{3})(\s?)(?!SA|SD|SS)[A-Z]{2}$/i ],
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[ 'SI', /^([1-9][0-9]{3})$/ ],
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[ 'KH', /^[0-9]{6}$/ ], // Cambodia (6-digit postal code)
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] );
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const DEFAULT_REGEXES = new Map< string, RegExp >( [
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...POSTCODE_REGEXES,
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...CUSTOM_REGEXES,
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] );
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export interface IsPostcodeProps {
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postcode: string;
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country: string;
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}
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const isPostcode = ( { postcode, country }: IsPostcodeProps ): boolean => {
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// If the country is not in the list of regexes, trying to test it would result in an error, so we skip and assume
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// that it is valid.
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const postcodeTest = DEFAULT_REGEXES.get( country )?.test( postcode );
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return typeof postcodeTest !== 'undefined' ? postcodeTest : true;
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};
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export default isPostcode;
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