Fix LI regex pattern (#267)

* fix: order of operations

* test: improper LI zip is rejected

Author: liam-linktree

src/postcode-regexes.ts

@@ -82,7 +82,7 @@ export const POSTCODE_REGEXES: Map<string, RegExp> = new Map([
   [CountryCode.LA, /^\d{5}$/],
   [CountryCode.LV, /^(LV-)?\d{4}$/],
   [CountryCode.LB, /^(\d{4}([ ]?\d{4})?)?$/],
-  [CountryCode.LI, /^(948[5-9])|(949[0-7])$/],
+  [CountryCode.LI, /^(948[5-9]|949[0-7])$/],
   [CountryCode.LT, /^(LT-)?\d{5}$/],
   [CountryCode.LU, /^(L-)?\d{4}$/],
   [CountryCode.MK, /^\d{4}$/],

test/main.spec.ts

@@ -23,6 +23,7 @@ describe('postcodeValidator', () => {
       { postcode: '12345', country: 'TW' },
       { postcode: '123456', country: 'TW' },
       { postcode: '12341-12213', country: 'IR' },
+      { postcode: '9487', country: 'LI' },
     ];
 
     expect.assertions(validPostcodes.length);
@@ -49,6 +50,7 @@ describe('postcodeValidator', () => {
       { postcode: '010000', country: 'PE' },
       { postcode: '0A000', country: 'PE' },
       { postcode: '1121234', country: 'IR' },
+      { postcode: '9485aaaa', country: 'LI' },
     ];
 
     expect.assertions(invalidPostcodes.length);