/** * Validates that the value is a valid email. */Ext.define('Ext.data.validator.Email', { extend: 'Ext.data.validator.Format', alias: 'data.validator.email', type: 'email', /** * @cfg {String} message * The error message to return when the value is not a valid email * @locale */ message: 'Is not a valid email address', // http://en.wikipedia.org/wiki/Email_address#Local_part // http://stackoverflow.com/a/2049510 // http://isemail.info/ // http://blog.stevenlevithan.com/archives/capturing-vs-non-capturing-groups // // 1. Can begin with a double-quote ONLY IF the local part also ends in a double-quote. // 2. Can NOT BEGIN with a period. // 3. Can NOT END with a period. // 4. Can not have MORE THAN ONE period in a row. // // Let's break this down: // // ^(")? // The local part may begin with double-quotes, but only if it also ends with it. // See the back-reference. Capturing. // // (?:[^\."]) // Here we've defined that the local part cannot begin with a period or a double-quote. // Non-capturing. // // (?:(?:[\.])?(?:[\w\-!#$%&'*+/=?^_`{|}~]))* // After the first character is matched, the regex ensures that there is not more than one // period in a row. Then, this nested grouping allows for zero or more of the accepted // characters. NOTE that this also ensures that any character not defined in the character class // is invalid as an ending character for the local part (such as the period). // // \1@ // The local part of the address is a backreference to the first (and only) capturing group // that allows // for a double-quote to wrap the local part of an email address. /** * @cfg {RegExp} matcher * A matcher to check for simple emails. This may be overridden. */ /* eslint-disable-next-line no-useless-escape */ matcher: /^(")?(?:[^\."])(?:(?:[\.])?(?:[\w\-!#$%&'*+\/=?\^_`{|}~]))*\1@(\w[\-\w]*\.){1,5}([A-Za-z]){2,6}$/});