(ext.) iOS development mailbox, phone number, ID, password, nickname regular expression validation

I've seen that before.

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//邮箱+ (BOOL) validateEmail:(NSString *)email{    NSString *emailRegex = @"[A-Z0-9a-z._%+-][email protected][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];    BOOLB = [userNamePredicate evaluateWithObject:name];    returnB;}  //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{    BOOLflag;    if(identityCard.length <= 0) {        flag = NO;        returnflag;    }    NSString *regex2 = @"^(\\d{14}|\\d{17})(\\d|[xX])$";    NSPredicate *identityCardPredicate = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",regex2];    return[identityCardPredicate evaluateWithObject:identityCard];}

(ext.) iOS development mailbox, phone number, ID, password, nickname regular expression validation