常用得正则表达式案例

1	NSString * regex        = @"(^[A-Za-z0-9]{6,15}$)";

2	NSPredicate * pred      = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", regex];

3	BOOL isMatch            = [pred evaluateWithObject:@"123456ABCde"];

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01	下面是一些常用的正则表达式

02

//邮箱

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

04

{

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

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

07	return [emailTest evaluateWithObject:email];

08

}

09

10

11

//手机号码验证

12	+ (BOOL) validateMobile:(NSString *)mobile

13

{

14	//手机号以13， 15，18开头，八个 \d 数字字符

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

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

17	return [phoneTest evaluateWithObject:mobile];

18

}

19

20

21

//车牌号验证

22	+ (BOOL) validateCarNo:(NSString *)carNo

23

{

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

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

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

27	return [carTest evaluateWithObject:carNo];

28

}

29

30

31

//车型

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

33

{

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

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

36	return [carTest evaluateWithObject:CarType];

37

}

38

39

40

//用户名

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

42

{

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

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

45	BOOL B = [userNamePredicate evaluateWithObject:name];

46

return B;

47

}

48

49

50

//密码

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

52

{

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

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

55	return [passWordPredicate evaluateWithObject:passWord];

56

}

57

58

59

//昵称

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

61

{

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

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

64	return [passWordPredicate evaluateWithObject:nickname];

65

}

66

67

68

//身份证号

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

70

{

71	BOOL flag;

72	if (identityCard.length <= 0) {

73	flag = NO;

74	return flag;

75

}

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

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

78	return [identityCardPredicate evaluateWithObject:identityCard];

79

}