Added FR and MC BBAN validation

Simplify · Nov 30, 2021 · 4619781 · 4619781
1 parent 11e6c78
commit 4619781
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Showing 3 changed files with 85 additions and 1 deletion.
diff --git a/ChangeLog b/ChangeLog
@@ -2,6 +2,7 @@
 	* Added Estonian (EE) BBAN validation
 	* Added Finland (FI) BBAN validation
 	* Aland Islands (AX) uses BBAN valkidation from Finland
+	* Added French (FR) and Monaco (MC) BBAN validation
 
 2021-11-28  Saša Jovanić <sasa@simplify.ba>
 	* Added Czech (CZ) BBAN validation

diff --git a/src/IBANTools.ts b/src/IBANTools.ts
@@ -744,6 +744,72 @@ const checkFinlandBBAN = (bban: string): boolean => {
   }
 };
 
+/**
+ * Check French (FR) BBAN
+ * Also for Monaco (MC)
+ *
+ * @ignore
+ */
+const checkFrenchBBAN = (bban: string): boolean => {
+  const stripped = bban.replace(/[\s.]+/g, '');
+  const normalized = Array.from(stripped);
+  for (let index = 0; index < stripped.length; index++) {
+    const c = normalized[index].charCodeAt(0);
+    if (c >= 65) {
+      switch (c) {
+        case 65:
+        case 74:
+          normalized[index] = '1';
+          break;
+        case 66:
+        case 75:
+        case 83:
+          normalized[index] = '2';
+          break;
+        case 67:
+        case 76:
+        case 84:
+          normalized[index] = '3';
+          break;
+        case 68:
+        case 77:
+        case 85:
+          normalized[index] = '4';
+          break;
+        case 69:
+        case 78:
+        case 86:
+          normalized[index] = '5';
+          break;
+        case 70:
+        case 79:
+        case 87:
+          normalized[index] = '6';
+          break;
+        case 71:
+        case 80:
+        case 88:
+          normalized[index] = '7';
+          break;
+        case 72:
+        case 81:
+        case 89:
+          normalized[index] = '8';
+          break;
+        case 73:
+        case 82:
+        case 90:
+          normalized[index] = '9';
+          break;
+        default:
+          break;
+      }
+    }
+  }
+  const remainder = mod9710(normalized.join(''));
+  return remainder === 0;
+};
+
 /**
  * Country specifications
  */
@@ -923,7 +989,13 @@ export const countrySpecs: CountryMapInternal = {
   EG: { chars: 29, bban_regexp: '^[0-9]{25}', IBANRegistry: true },
   EH: {},
   ER: {},
-  ES: { chars: 24, bban_validation_func: checkSpainBBAN, bban_regexp: '^[0-9]{20}$', IBANRegistry: true, SEPA: true },
+  ES: {
+    chars: 24,
+    bban_validation_func: checkSpainBBAN,
+    bban_regexp: '^[0-9]{20}$',
+    IBANRegistry: true,
+    SEPA: true,
+  },
   ET: {},
   FI: {
     chars: 18,
@@ -939,6 +1011,7 @@ export const countrySpecs: CountryMapInternal = {
   FR: {
     chars: 27,
     bban_regexp: '^[0-9]{10}[A-Z0-9]{11}[0-9]{2}$',
+    bban_validation_func: checkFrenchBBAN,
     IBANRegistry: true,
     SEPA: true,
   },
@@ -1122,6 +1195,7 @@ export const countrySpecs: CountryMapInternal = {
   MC: {
     chars: 27,
     bban_regexp: '^[0-9]{10}[A-Z0-9]{11}[0-9]{2}$',
+    bban_validation_func: checkFrenchBBAN,
     IBANRegistry: true,
     SEPA: true,
   },

diff --git a/test/ibantools_test.js b/test/ibantools_test.js
@@ -254,6 +254,15 @@ describe('IBANTools', function() {
     it('with valid FI IBAN should return true', function() {
       expect(iban.isValidIBAN('FI5888345670005487')).to.be.true;
     });
+    it('with valid FR IBAN should return true', function() {
+      expect(iban.isValidIBAN('FR1420041010050500013M02606')).to.be.true;
+    });
+    it('with valid MC IBAN should return true', function() {
+      expect(iban.isValidIBAN('MC5811222000010123456789030')).to.be.true;
+    });
+    it('with valid MC IBAN should return true', function() {
+      expect(iban.isValidIBAN('MC1112739000700011111000H79')).to.be.true;
+    });
   });
 
   describe('When calling validateIBAN()', function() {