Merge pull request #122 from sskogen/main

Support Swedish Coordination numbers ("Samordningsnummer")
koblas · Nov 16, 2024 · d22fccd · d22fccd
2 parents ecace41 + 5c845ab
commit d22fccd
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Showing 2 changed files with 19 additions and 3 deletions.
diff --git a/src/se/personnummer.spec.ts b/src/se/personnummer.spec.ts
@@ -22,6 +22,13 @@ describe('se/personnummer', () => {
     expect(result.isValid && result.compact).toEqual('880320-0016');
   });
 
+  // Coordination number ("Samordningsnummer")
+  it('validate:701063-2391', () => {
+    const result = validate('701063-2391');
+
+    expect(result.isValid && result.compact).toEqual('701063-2391');
+  });
+
   test.each(['811228-9874', '670919-9530', '11900102-2384'])(
     'validate:%s',
     value => {

diff --git a/src/se/personnummer.ts b/src/se/personnummer.ts
@@ -35,8 +35,8 @@ function formatImpl(input: string): string {
   const [value] = clean(input);
 
   let front,
-    back,
-    sep = '-';
+      back,
+      sep = '-';
 
   if (value.length === 12 || value.length === 13) {
     const [yyyy, mm, dd] = strings.splitAt(value, 0, 4, 6, 8);
@@ -122,6 +122,15 @@ const impl: Validator = {
 
       yyyymmdd = `${century}${yymmdd}`;
     }
+
+    // Adjust for coordination numbers ("Samordningsnummer")
+    // https://skatteverket.se/servicelankar/otherlanguages/inenglishengelska/individualsandemployees/coordinationnumbers
+    const day = parseInt(yyyymmdd.substring(6, 8), 10);
+    if (day > 60) {
+      yyyymmdd =
+          yyyymmdd.substring(0, 6) + (day - 60).toString().padStart(2, '0');
+    }
+
     if (!isValidDateCompactYYYYMMDD(yyyymmdd, true)) {
       return { isValid: false, error: new exceptions.InvalidComponent() };
     }
@@ -140,4 +149,4 @@ const impl: Validator = {
 };
 
 export const { name, localName, abbreviation, validate, format, compact } =
-  impl;
+    impl;