以下是部分iOS中的正则表达式案例,方便使用时套用,代码如下:

//邮箱

+ (BOOL) validateEmail:(NSString *)email{

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

   NSPredicate *emailTest = [NSPredicate predicateWithFormat:@"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 = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",phoneRegex];

   return [phoneTest evaluateWithObject:mobile];

}

 

//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 = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",carRegex];

   NSLog(@"carTest is %@",carTest);

   return [carTest evaluateWithObject:carNo];

}

 

//车型

+ (BOOL) validateCarType:(NSString *)CarType{

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

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

   return [carTest evaluateWithObject:CarType];

}

 

//用户名

+ (BOOL) validateUserName:(NSString *)name{

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

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

   BOOL B = [userNamePredicate evaluateWithObject:name];

   return B;

}

 

//密码

+ (BOOL) validatePassword:(NSString *)passWord{

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

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

   return [passWordPredicate evaluateWithObject:passWord];

}

 

//昵称

+ (BOOL) validateNickname:(NSString *)nickname{

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

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

   return [passWordPredicate evaluateWithObject:nickname];

}

 

//身份证号

+ (BOOL) validateIdentityCard: (NSString *)identityCard{

   BOOL flag;

   if (identityCard.length <= 0) {

      flag = NO;

      return flag;

   }

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

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

   return [identityCardPredicate evaluateWithObject:identityCard];

}