正则的常规使用

//邮箱

+ (BOOL) validateEmail:(NSString*)email

{

NSString*emailRegex =@"[A-Z0-9a-z._%+-]+@[A-Za-z0-9.-]+\\.[A-Za-z]{2,4}";

NSPredicate*emailTest = [NSPredicatepredicateWithFormat:@"SELF MATCHES %@", emailRegex];

return[emailTest evaluateWithObject:email];

}

//手机号码验证

+ (BOOL) validateMobile:(NSString*)mobile

{

//手机号以13， 15，18开头，八个 \d 数字字符

NSString*phoneRegex =@"^((13[0-9])|(15[^4,\\D])|(18[0,0-9]))\\d{8}$";

NSPredicate*phoneTest = [NSPredicatepredicateWithFormat:@"SELF MATCHES %@",phoneRegex];

return[phoneTest evaluateWithObject:mobile];

}

//工商税号

- (BOOL)isValidTaxNo {NSString*taxNoRegex =@"[0-9]\\\\d{13}([0-9]|X)$";return[selfisValidateByRegex:taxNoRegex];}

//车牌号验证

+ (BOOL) validateCarNo:(NSString*)carNo

{

NSString*carRegex =@"^[\u4e00-\u9fa5]{1}[a-zA-Z]{1}[a-zA-Z_0-9]{4}[a-zA-Z_0-9_\u4e00-\u9fa5]$";

NSPredicate*carTest = [NSPredicatepredicateWithFormat:@"SELF MATCHES %@",carRegex];

NSLog(@"carTest is %@",carTest);

return[carTest evaluateWithObject:carNo];

}

//车型

+ (BOOL) validateCarType:(NSString*)CarType

{

NSString*CarTypeRegex =@"^[\u4E00-\u9FFF]+$";

NSPredicate*carTest = [NSPredicatepredicateWithFormat:@"SELF MATCHES %@",CarTypeRegex];

return[carTest evaluateWithObject:CarType];

}

//用户名

+ (BOOL) validateUserName:(NSString*)name

{

NSString*userNameRegex =@"^[A-Za-z0-9]{6,20}+$";

NSPredicate*userNamePredicate = [NSPredicatepredicateWithFormat:@"SELF MATCHES %@",userNameRegex];

BOOLB = [userNamePredicate evaluateWithObject:name];

returnB;

}

//密码

+ (BOOL) validatePassword:(NSString*)passWord

{

NSString*passWordRegex =@"^[a-zA-Z0-9]{6,20}+$";

NSPredicate*passWordPredicate = [NSPredicatepredicateWithFormat:@"SELF MATCHES %@",passWordRegex];

return[passWordPredicate evaluateWithObject:passWord];

}

//昵称

+ (BOOL) validateNickname:(NSString*)nickname

{

NSString*nicknameRegex =@"^[\u4e00-\u9fa5]{4,8}$";

NSPredicate*passWordPredicate = [NSPredicatepredicateWithFormat:@"SELF MATCHES %@",nicknameRegex];

return[passWordPredicate evaluateWithObject:nickname];

}

//身份证号

+ (BOOL) validateIdentityCard: (NSString*)identityCard

{

BOOLflag;

if(identityCard.length <=0) {

flag =NO;

returnflag;

    }

NSString*regex2 =@"^(\\d{14}|\\d{17})(\\d|[xX])$";

NSPredicate*identityCardPredicate = [NSPredicatepredicateWithFormat:@"SELF MATCHES %@",regex2];

return[identityCardPredicate evaluateWithObject:identityCard];

}

转载自：https://blog.csdn.net/ifziv/article/details/14446885