diff options
author | RaindropsSys <contact@minteck.org> | 2023-04-06 22:18:28 +0200 |
---|---|---|
committer | RaindropsSys <contact@minteck.org> | 2023-04-06 22:18:28 +0200 |
commit | 83354b2b88218090988dd6e526b0a2505b57e0f1 (patch) | |
tree | e3c73c38a122a78bb7e66fbb99056407edd9d4b9 /includes/external/addressbook/node_modules/validator/lib/isISSN.js | |
parent | 47b8f2299a483024c4a6a8876af825a010954caa (diff) | |
download | pluralconnect-83354b2b88218090988dd6e526b0a2505b57e0f1.tar.gz pluralconnect-83354b2b88218090988dd6e526b0a2505b57e0f1.tar.bz2 pluralconnect-83354b2b88218090988dd6e526b0a2505b57e0f1.zip |
Updated 5 files and added 1110 files (automated)
Diffstat (limited to 'includes/external/addressbook/node_modules/validator/lib/isISSN.js')
-rw-r--r-- | includes/external/addressbook/node_modules/validator/lib/isISSN.js | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/includes/external/addressbook/node_modules/validator/lib/isISSN.js b/includes/external/addressbook/node_modules/validator/lib/isISSN.js new file mode 100644 index 0000000..eee87b3 --- /dev/null +++ b/includes/external/addressbook/node_modules/validator/lib/isISSN.js @@ -0,0 +1,37 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = isISSN; + +var _assertString = _interopRequireDefault(require("./util/assertString")); + +function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; } + +var issn = '^\\d{4}-?\\d{3}[\\dX]$'; + +function isISSN(str) { + var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {}; + (0, _assertString.default)(str); + var testIssn = issn; + testIssn = options.require_hyphen ? testIssn.replace('?', '') : testIssn; + testIssn = options.case_sensitive ? new RegExp(testIssn) : new RegExp(testIssn, 'i'); + + if (!testIssn.test(str)) { + return false; + } + + var digits = str.replace('-', '').toUpperCase(); + var checksum = 0; + + for (var i = 0; i < digits.length; i++) { + var digit = digits[i]; + checksum += (digit === 'X' ? 10 : +digit) * (8 - i); + } + + return checksum % 11 === 0; +} + +module.exports = exports.default; +module.exports.default = exports.default;
\ No newline at end of file |