cferdinandi · November 2, 2019 14:33 · tmthrgd · May 29, 2017
diff --git a/email_validation.js b/email_validation.js
 // See http://rosskendall.com/blog/web/javascript-function-to-check-an-email-address-conforms-to-rfc822
 // Forked from Richard Willis: https://gist.github.com/badsyntax/719800

 var isEmail = function (email){
 	return /^([^\x00-\x20\x22\x28\x29\x2c\x2e\x3a-\x3c\x3e\x40\x5b-\x5d\x7f-\xff]+|\x22([^\x0d\x22\x5c\x80-\xff]|\x5c[\x00-\x7f])*\x22)(\x2e([^\x00-\x20\x22\x28\x29\x2c\x2e\x3a-\x3c\x3e\x40\x5b-\x5d\x7f-\xff]+|\x22([^\x0d\x22\x5c\x80-\xff]|\x5c[\x00-\x7f])*\x22))*\x40([^\x00-\x20\x22\x28\x29\x2c\x2e\x3a-\x3c\x3e\x40\x5b-\x5d\x7f-\xff]+|\x5b([^\x0d\x5b-\x5d\x80-\xff]|\x5c[\x00-\x7f])*\x5d)(\x2e([^\x00-\x20\x22\x28\x29\x2c\x2e\x3a-\x3c\x3e\x40\x5b-\x5d\x7f-\xff]+|\x5b([^\x0d\x5b-\x5d\x80-\xff]|\x5c[\x00-\x7f])*\x5d))*$/.test( email );	
 };

 var isEmailWithTLD = function (email){
 	return /^([^\x00-\x20\x22\x28\x29\x2c\x2e\x3a-\x3c\x3e\x40\x5b-\x5d\x7f-\xff]+|\x22([^\x0d\x22\x5c\x80-\xff]|\x5c[\x00-\x7f])*\x22)(\x2e([^\x00-\x20\x22\x28\x29\x2c\x2e\x3a-\x3c\x3e\x40\x5b-\x5d\x7f-\xff]+|\x22([^\x0d\x22\x5c\x80-\xff]|\x5c[\x00-\x7f])*\x22))*\x40([^\x00-\x20\x22\x28\x29\x2c\x2e\x3a-\x3c\x3e\x40\x5b-\x5d\x7f-\xff]+|\x5b([^\x0d\x5b-\x5d\x80-\xff]|\x5c[\x00-\x7f])*\x5d)(\x2e([^\x00-\x20\x22\x28\x29\x2c\x2e\x3a-\x3c\x3e\x40\x5b-\x5d\x7f-\xff]+|\x5b([^\x0d\x5b-\x5d\x80-\xff]|\x5c[\x00-\x7f])*\x5d))*(\.\w{2,})+$/.test(email);    
 };
	// See http://rosskendall.com/blog/web/javascript-function-to-check-an-email-address-conforms-to-rfc822
	// Forked from Richard Willis: https://gist.github.com/badsyntax/719800

	var isEmail = function (email){
	return /^([^\x00-\x20\x22\x28\x29\x2c\x2e\x3a-\x3c\x3e\x40\x5b-\x5d\x7f-\xff]+\|\x22([^\x0d\x22\x5c\x80-\xff]\|\x5c[\x00-\x7f])\x22)(\x2e([^\x00-\x20\x22\x28\x29\x2c\x2e\x3a-\x3c\x3e\x40\x5b-\x5d\x7f-\xff]+\|\x22([^\x0d\x22\x5c\x80-\xff]\|\x5c[\x00-\x7f])\x22))\x40([^\x00-\x20\x22\x28\x29\x2c\x2e\x3a-\x3c\x3e\x40\x5b-\x5d\x7f-\xff]+\|\x5b([^\x0d\x5b-\x5d\x80-\xff]\|\x5c[\x00-\x7f])\x5d)(\x2e([^\x00-\x20\x22\x28\x29\x2c\x2e\x3a-\x3c\x3e\x40\x5b-\x5d\x7f-\xff]+\|\x5b([^\x0d\x5b-\x5d\x80-\xff]\|\x5c[\x00-\x7f])\x5d))$/.test( email );
	};

	var isEmailWithTLD = function (email){
	return /^([^\x00-\x20\x22\x28\x29\x2c\x2e\x3a-\x3c\x3e\x40\x5b-\x5d\x7f-\xff]+\|\x22([^\x0d\x22\x5c\x80-\xff]\|\x5c[\x00-\x7f])\x22)(\x2e([^\x00-\x20\x22\x28\x29\x2c\x2e\x3a-\x3c\x3e\x40\x5b-\x5d\x7f-\xff]+\|\x22([^\x0d\x22\x5c\x80-\xff]\|\x5c[\x00-\x7f])\x22))\x40([^\x00-\x20\x22\x28\x29\x2c\x2e\x3a-\x3c\x3e\x40\x5b-\x5d\x7f-\xff]+\|\x5b([^\x0d\x5b-\x5d\x80-\xff]\|\x5c[\x00-\x7f])\x5d)(\x2e([^\x00-\x20\x22\x28\x29\x2c\x2e\x3a-\x3c\x3e\x40\x5b-\x5d\x7f-\xff]+\|\x5b([^\x0d\x5b-\x5d\x80-\xff]\|\x5c[\x00-\x7f])\x5d))(\.\w{2,})+$/.test(email);
	};