浅谈iOS应用中的相关正则及验证

+ (BOOL)isMobileNumber:(NSString *)mobileNumber{  //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:mobileNumber]; }

/** * 身份证号 * @param NSString 身份证号字符串 * @return 是否身份证号 * d{14} 14位数字 */+ (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];}

/** * 精确验证身份证号 * @param IdentityNum 身份证号  * @return 是否是身份证号 */+(BOOL)isValidWithIdentityNum:(NSString *)IdentityNum{  //先正则匹配  //......    //计算最后一位余数  NSArray *arrExp = [NSArray arrayWithObjects:@"7", @"9", @"10", @"5", @"8", @"4", @"2", @"1", @"6", @"3", @"7", @"9", @"10", @"5", @"8", @"4", @"2", nil];  NSArray *arrVaild = [NSArray arrayWithObjects:@"1", @"0", @"X", @"9", @"8", @"7", @"6", @"5", @"4", @"3", @"2", nil];    long sum = 0;  for (int i = 0; i < (IdentityNum.length -1); i++) {    NSString * str = [IdentityNum substringWithRange:NSMakeRange(i, 1)];    sum += [str intValue] * [arrExp[i] intValue];  }    int idx = (sum % 11);  if ([arrVaild[idx] isEqualToString:[IdentityNum substringWithRange:NSMakeRange(IdentityNum.length - 1, 1)]]) {    return YES;  }else{    return NO;  }  return YES;}

/** * 验证邮箱 * * @param email 邮箱字符串 * * @return 是否邮箱 * * [A-Z0-9a-z] 表示 A-Z 与 0-9 与 a-z 任意一个 * {2,4}    表示 字符位大于2个，小于4个 */+ (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];}

/** * 用户名验证 * * @param NSString 用户名字符串 * * @return 是否用户名 * {6,20} 6到20位 */+ (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;}

/** * 密码认证 * * @param NSString 密码字符串 * * @return 是否密码 * {6,20} 6到20位 */+ (BOOL) validatePassword:(NSString *)passWord{  NSString *passWordRegex = @"^[a-zA-Z0-9]{6,20}+$";  NSPredicate *passWordPredicate = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",passWordRegex];  return [passWordPredicate evaluateWithObject:passWord];}

/** * 验证昵称 * * @param NSString 昵称字符串 * * @return 是否昵称 * {4,8} 4到8位 */+ (BOOL) validateNickname:(NSString *)nickname{  NSString *nicknameRegex = @"^[/u4e00-/u9fa5]{4,8}$";  NSPredicate *passWordPredicate = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",nicknameRegex];  return [passWordPredicate evaluateWithObject:nickname];}

/** * 4位验证码 * * @param verifyCode 验证码 * * @return 是否是验证码 */+ (BOOL) validateVerifyCode:(NSString *)verifyCode{  BOOL flag;  if (verifyCode.length <= 0) {    flag = NO;    return flag;  }  NSString *regex2 = @"^(//d{4})$";  NSPredicate *verifyCodePredicate = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",regex2];  return [verifyCodePredicate evaluateWithObject:verifyCode];}