From 83354b2b88218090988dd6e526b0a2505b57e0f1 Mon Sep 17 00:00:00 2001
From: RaindropsSys <contact@minteck.org>
Date: Thu, 6 Apr 2023 22:18:28 +0200
Subject: Updated 5 files and added 1110 files (automated)

---
 .../node_modules/validator/lib/isISBN.js           | 69 ++++++++++++++++++++++
 1 file changed, 69 insertions(+)
 create mode 100644 includes/external/addressbook/node_modules/validator/lib/isISBN.js

(limited to 'includes/external/addressbook/node_modules/validator/lib/isISBN.js')

diff --git a/includes/external/addressbook/node_modules/validator/lib/isISBN.js b/includes/external/addressbook/node_modules/validator/lib/isISBN.js
new file mode 100644
index 0000000..b272b9a
--- /dev/null
+++ b/includes/external/addressbook/node_modules/validator/lib/isISBN.js
@@ -0,0 +1,69 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = isISBN;
+
+var _assertString = _interopRequireDefault(require("./util/assertString"));
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var possibleIsbn10 = /^(?:[0-9]{9}X|[0-9]{10})$/;
+var possibleIsbn13 = /^(?:[0-9]{13})$/;
+var factor = [1, 3];
+
+function isISBN(isbn, options) {
+  (0, _assertString.default)(isbn); // For backwards compatibility:
+  // isISBN(str [, version]), i.e. `options` could be used as argument for the legacy `version`
+
+  var version = String((options === null || options === void 0 ? void 0 : options.version) || options);
+
+  if (!(options !== null && options !== void 0 && options.version || options)) {
+    return isISBN(isbn, {
+      version: 10
+    }) || isISBN(isbn, {
+      version: 13
+    });
+  }
+
+  var sanitizedIsbn = isbn.replace(/[\s-]+/g, '');
+  var checksum = 0;
+
+  if (version === '10') {
+    if (!possibleIsbn10.test(sanitizedIsbn)) {
+      return false;
+    }
+
+    for (var i = 0; i < version - 1; i++) {
+      checksum += (i + 1) * sanitizedIsbn.charAt(i);
+    }
+
+    if (sanitizedIsbn.charAt(9) === 'X') {
+      checksum += 10 * 10;
+    } else {
+      checksum += 10 * sanitizedIsbn.charAt(9);
+    }
+
+    if (checksum % 11 === 0) {
+      return true;
+    }
+  } else if (version === '13') {
+    if (!possibleIsbn13.test(sanitizedIsbn)) {
+      return false;
+    }
+
+    for (var _i = 0; _i < 12; _i++) {
+      checksum += factor[_i % 2] * sanitizedIsbn.charAt(_i);
+    }
+
+    if (sanitizedIsbn.charAt(12) - (10 - checksum % 10) % 10 === 0) {
+      return true;
+    }
+  }
+
+  return false;
+}
+
+module.exports = exports.default;
+module.exports.default = exports.default;
\ No newline at end of file
-- 
cgit