regex validation for email

After a few days of precipitation and research, turned rotten the essence of the forum, found that asked the question is really a lot of people, but I finally put the damn jmail email verification problem, although not perfect, but at least it can be done. Verification by research found that Sina's SMTP authentication is too powerful, no matter how the data are said validation failed, so I hold the attitude

namespaceYongfa365.validator {usingSystem;usingSystem.Text.RegularExpressions;/// ///RegExp soruce:http://regexlib.com/DisplayPatterns.aspx ///Author: Liuyongfa yongfa365http://www.yongfa365.com/[email protected]///Intro: Verify URL, IP, email, phone, phone, digital, English, date, ID, postcode ,///in principle is the Chinese general, because various occasions are different, so there are special

= [nspredicatepredicatewithformat:@ "selfmatches%@",cartyperegex]; return[cartestevaluatewithobject:cartype];} //User name + (BOOL) validateusername: (nsstring*) name{nsstring *usernameregex=@ "^[a-za-z0-9]{6,20}+$"; nspredicate* Usernamepredicate=[nspredicatepredicatewithformat:@ "selfmatches%@",userNameRegex]; BOOLB=[userNamePredicateevaluateWithObject:name]; Returnb;} //password + (BOOL) validatepassword: (nsstring*) password{nsstring *passwordregex=@ "^[a-za-z0-9]{6,20}+$"; nspredicate* pass

=@"^[A-Za-z0-9]{6,20}+$";NSPredicate*userNamePredicate=[NSPredicatepredicateWithFormat:@"SELFMATCHES%@",userNameRegex];BOOL B=[userNamePredicateevaluateWithObject:name];returnB;}//密码+(BOOL)validatePassword:(NSString*)passWord{NSString*passWordRegex=@"^[a-zA-Z0-9]{6,20}+$";NSPredicate*passWordPredicate=[NSPredicatepredicateWithFormat:@"SELFMATCHES%@",passWordRegex];return[passWordPredicateevaluateWithObject:passWord];}//昵称+(BOOL)validateNickname:(NSString*)nickname{NSString*nicknameRegex=@"^[\u4e

Regular expression matching an email address: w+ ([-+.] w+) *@w+ ([-.] w+) *.w+ ([-.] w+) *Regular expressions that match URL URLs: [a-za-z]+://[^s]* Let's look at an example Echo ' A: '. Htmlspecialchars ($a); Echo ' $a 1 = eregi_replace (' (^[_.] [: alnum:]-]+@ ([: alnum:]][[:alnum:]-]*.) +[[:alpha:]]{2,3}$) ', ' Echo htmlspecialchars ($a 1); echo "Echo ' $a 2 = eregi_replace ([: alnum:]]+://([: alnum:]][[:alnum:]-]*.) +[[:alpha:]]{2,3} (

JavaScript Tutorials Phone, QQ, mobile phone, ID number, email address, post regular expression validation code

Common email address IP address English user name validation function */function to check e-mail address like stringfunction Isemail (s){There must is >= 1 character before @, so weStart looking at character position 1(i.e. second character)var i = 1;var slength = s.length; if (slength Look for @while ((I {i++} if ((i >= slength) | | (S.charat (i)!= "@")) return false;else i = 2; Look for.while

This article mainly introduces the PHP regular verification email method, involving PHP regular expression validation of the relevant skills, the need for friends can refer to the following This article describes the PHP regular verification email method. Share to everyone for your reference. Specific as follows:

The regular expression (regular expression) describes a pattern of string matching that can be used to check whether a string contains a seed string, replace a matched substring, or remove a substring from a string that matches a certain condition. This article mainly introduces the PHP regular verification email method, involving PHP regular expression validation of the relevant skills, the need for friend